* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: fix header export, asm-x86/processor-flags.h, CONFIG_* leaks
x86: BUILD_IRQ say .text to avoid .data.percpu
xen: don't use sysret for sysexit32
x86: call early_cpu_init at the same point
S: Seattle, Washington 98126-2010
S: USA
+N: Muli Ben-Yehuda
+E: mulix@mulix.org
+E: muli@il.ibm.com
+W: http://www.mulix.org
+D: trident OSS sound driver, x86-64 dma-ops and Calgary IOMMU,
+D: KVM and Xen bits and other misc. hackery.
+S: Haifa, Israel
+
N: Johannes Berg
E: johannes@sipsolutions.net
W: http://johannes.sipsolutions.net/
--- /dev/null
+What: /sys/devices/system/memory
+Date: June 2008
+Contact: Badari Pulavarty <pbadari@us.ibm.com>
+Description:
+ The /sys/devices/system/memory contains a snapshot of the
+ internal state of the kernel memory blocks. Files could be
+ added or removed dynamically to represent hot-add/remove
+ operations.
+
+Users: hotplug memory add/remove tools
+ https://w3.opensource.ibm.com/projects/powerpc-utils/
+
+What: /sys/devices/system/memory/memoryX/removable
+Date: June 2008
+Contact: Badari Pulavarty <pbadari@us.ibm.com>
+Description:
+ The file /sys/devices/system/memory/memoryX/removable
+ indicates whether this memory block is removable or not.
+ This is useful for a user-level agent to determine
+ identify removable sections of the memory before attempting
+ potentially expensive hot-remove memory operation
+
+Users: hotplug memory remove tools
+ https://w3.opensource.ibm.com/projects/powerpc-utils/
--- /dev/null
+What: /sys/kernel/mm
+Date: July 2008
+Contact: Nishanth Aravamudan <nacc@us.ibm.com>, VM maintainers
+Description:
+ /sys/kernel/mm/ should contain any and all VM
+ related information in /sys/kernel/.
--- /dev/null
+What: /sys/kernel/mm/hugepages/
+Date: June 2008
+Contact: Nishanth Aravamudan <nacc@us.ibm.com>, hugetlb maintainers
+Description:
+ /sys/kernel/mm/hugepages/ contains a number of subdirectories
+ of the form hugepages-<size>kB, where <size> is the page size
+ of the hugepages supported by the kernel/CPU combination.
+
+ Under these directories are a number of files:
+ nr_hugepages
+ nr_overcommit_hugepages
+ free_hugepages
+ surplus_hugepages
+ resv_hugepages
+ See Documentation/vm/hugetlbpage.txt for details.
</para>
<sect1 id="lock-intro">
- <title>Three Main Types of Kernel Locks: Spinlocks, Mutexes and Semaphores</title>
+ <title>Two Main Types of Kernel Locks: Spinlocks and Mutexes</title>
<para>
- There are three main types of kernel locks. The fundamental type
+ There are two main types of kernel locks. The fundamental type
is the spinlock
(<filename class="headerfile">include/asm/spinlock.h</filename>),
which is a very simple single-holder lock: if you can't get the
can't sleep (see <xref linkend="sleeping-things"/>), and so have to
use a spinlock instead.
</para>
- <para>
- The third type is a semaphore
- (<filename class="headerfile">include/linux/semaphore.h</filename>): it
- can have more than one holder at any time (the number decided at
- initialization time), although it is most commonly used as a
- single-holder lock (a mutex). If you can't get a semaphore, your
- task will be suspended and later on woken up - just like for mutexes.
- </para>
<para>
Neither type of lock is recursive: see
<xref linkend="deadlock"/>.
</para>
<para>
- Semaphores still exist, because they are required for
+ Mutexes still exist, because they are required for
synchronization between <firstterm linkend="gloss-usercontext">user
contexts</firstterm>, as we will see below.
</para>
<para>
If you have a data structure which is only ever accessed from
- user context, then you can use a simple semaphore
- (<filename>linux/linux/semaphore.h</filename>) to protect it. This
- is the most trivial case: you initialize the semaphore to the number
- of resources available (usually 1), and call
- <function>down_interruptible()</function> to grab the semaphore, and
- <function>up()</function> to release it. There is also a
- <function>down()</function>, which should be avoided, because it
+ user context, then you can use a simple mutex
+ (<filename>include/linux/mutex.h</filename>) to protect it. This
+ is the most trivial case: you initialize the mutex. Then you can
+ call <function>mutex_lock_interruptible()</function> to grab the mutex,
+ and <function>mutex_unlock()</function> to release it. There is also a
+ <function>mutex_lock()</function>, which should be avoided, because it
will not return if a signal is received.
</para>
<para>
- Example: <filename>linux/net/core/netfilter.c</filename> allows
+ Example: <filename>net/netfilter/nf_sockopt.c</filename> allows
registration of new <function>setsockopt()</function> and
<function>getsockopt()</function> calls, with
<function>nf_register_sockopt()</function>. Registration and
<listitem>
<para>
If you are in a process context (any syscall) and want to
- lock other process out, use a semaphore. You can take a semaphore
+ lock other process out, use a mutex. You can take a mutex
and sleep (<function>copy_from_user*(</function> or
<function>kmalloc(x,GFP_KERNEL)</function>).
</para>
<entry>SLBH</entry>
<entry>SLBH</entry>
<entry>SLBH</entry>
-<entry>DI</entry>
+<entry>MLI</entry>
<entry>None</entry>
</row>
<entry>spin_lock_bh</entry>
</row>
<row>
-<entry>DI</entry>
-<entry>down_interruptible</entry>
+<entry>MLI</entry>
+<entry>mutex_lock_interruptible</entry>
</row>
</tbody>
<para>
There is a coding bug where a piece of code tries to grab a
spinlock twice: it will spin forever, waiting for the lock to
- be released (spinlocks, rwlocks and semaphores are not
+ be released (spinlocks, rwlocks and mutexes are not
recursive in Linux). This is trivial to diagnose: not a
stay-up-five-nights-talk-to-fluffy-code-bunnies kind of
problem.
<para>
This complete lockup is easy to diagnose: on SMP boxes the
- watchdog timer or compiling with <symbol>DEBUG_SPINLOCKS</symbol> set
+ watchdog timer or compiling with <symbol>DEBUG_SPINLOCK</symbol> set
(<filename>include/linux/spinlock.h</filename>) will show this up
immediately when it happens.
</para>
<title>Read/Write Lock Variants</title>
<para>
- Both spinlocks and semaphores have read/write variants:
+ Both spinlocks and mutexes have read/write variants:
<type>rwlock_t</type> and <structname>struct rw_semaphore</structname>.
These divide users into two classes: the readers and the writers. If
you are only reading the data, you can get a read lock, but to write to
#include <linux/slab.h>
#include <linux/string.h>
+#include <linux/rcupdate.h>
- #include <linux/semaphore.h>
+ #include <linux/mutex.h>
#include <asm/errno.h>
struct object
</listitem>
<listitem>
<para>
- <function> put_user()</function>
+ <function>put_user()</function>
</para>
</listitem>
</itemizedlist>
<listitem>
<para>
- <function>down_interruptible()</function> and
- <function>down()</function>
+ <function>mutex_lock_interruptible()</function> and
+ <function>mutex_lock()</function>
</para>
<para>
- There is a <function>down_trylock()</function> which can be
+ There is a <function>mutex_trylock()</function> which can be
used inside interrupt context, as it will not sleep.
- <function>up()</function> will also never sleep.
+ <function>mutex_unlock()</function> will also never sleep.
</para>
</listitem>
</itemizedlist>
<para>
Prior to 2.5, or when <symbol>CONFIG_PREEMPT</symbol> is
unset, processes in user context inside the kernel would not
- preempt each other (ie. you had that CPU until you have it up,
+ preempt each other (ie. you had that CPU until you gave it up,
except for interrupts). With the addition of
<symbol>CONFIG_PREEMPT</symbol> in 2.5.4, this changed: when
in user context, higher priority tasks can "cut in": spinlocks
--- /dev/null
+SH7760/SH7763 integrated LCDC Framebuffer driver
+================================================
+
+0. Overwiew
+-----------
+The SH7760/SH7763 have an integrated LCD Display controller (LCDC) which
+supports (in theory) resolutions ranging from 1x1 to 1024x1024,
+with color depths ranging from 1 to 16 bits, on STN, DSTN and TFT Panels.
+
+Caveats:
+* Framebuffer memory must be a large chunk allocated at the top
+ of Area3 (HW requirement). Because of this requirement you should NOT
+ make the driver a module since at runtime it may become impossible to
+ get a large enough contiguous chunk of memory.
+
+* The driver does not support changing resolution while loaded
+ (displays aren't hotpluggable anyway)
+
+* Heavy flickering may be observed
+ a) if you're using 15/16bit color modes at >= 640x480 px resolutions,
+ b) during PCMCIA (or any other slow bus) activity.
+
+* Rotation works only 90degress clockwise, and only if horizontal
+ resolution is <= 320 pixels.
+
+files: drivers/video/sh7760fb.c
+ include/asm-sh/sh7760fb.h
+ Documentation/fb/sh7760fb.txt
+
+1. Platform setup
+-----------------
+SH7760:
+ Video data is fetched via the DMABRG DMA engine, so you have to
+ configure the SH DMAC for DMABRG mode (write 0x94808080 to the
+ DMARSRA register somewhere at boot).
+
+ PFC registers PCCR and PCDR must be set to peripheral mode.
+ (write zeros to both).
+
+The driver does NOT do the above for you since board setup is, well, job
+of the board setup code.
+
+2. Panel definitions
+--------------------
+The LCDC must explicitly be told about the type of LCD panel
+attached. Data must be wrapped in a "struct sh7760fb_platdata" and
+passed to the driver as platform_data.
+
+Suggest you take a closer look at the SH7760 Manual, Section 30.
+(http://documentation.renesas.com/eng/products/mpumcu/e602291_sh7760.pdf)
+
+The following code illustrates what needs to be done to
+get the framebuffer working on a 640x480 TFT:
+
+====================== cut here ======================================
+
+#include <linux/fb.h>
+#include <asm/sh7760fb.h>
+
+/*
+ * NEC NL6440bc26-01 640x480 TFT
+ * dotclock 25175 kHz
+ * Xres 640 Yres 480
+ * Htotal 800 Vtotal 525
+ * HsynStart 656 VsynStart 490
+ * HsynLenn 30 VsynLenn 2
+ *
+ * The linux framebuffer layer does not use the syncstart/synclen
+ * values but right/left/upper/lower margin values. The comments
+ * for the x_margin explain how to calculate those from given
+ * panel sync timings.
+ */
+static struct fb_videomode nl6448bc26 = {
+ .name = "NL6448BC26",
+ .refresh = 60,
+ .xres = 640,
+ .yres = 480,
+ .pixclock = 39683, /* in picoseconds! */
+ .hsync_len = 30,
+ .vsync_len = 2,
+ .left_margin = 114, /* HTOT - (HSYNSLEN + HSYNSTART) */
+ .right_margin = 16, /* HSYNSTART - XRES */
+ .upper_margin = 33, /* VTOT - (VSYNLEN + VSYNSTART) */
+ .lower_margin = 10, /* VSYNSTART - YRES */
+ .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .vmode = FB_VMODE_NONINTERLACED,
+ .flag = 0,
+};
+
+static struct sh7760fb_platdata sh7760fb_nl6448 = {
+ .def_mode = &nl6448bc26,
+ .ldmtr = LDMTR_TFT_COLOR_16, /* 16bit TFT panel */
+ .lddfr = LDDFR_8BPP, /* we want 8bit output */
+ .ldpmmr = 0x0070,
+ .ldpspr = 0x0500,
+ .ldaclnr = 0,
+ .ldickr = LDICKR_CLKSRC(LCDC_CLKSRC_EXTERNAL) |
+ LDICKR_CLKDIV(1),
+ .rotate = 0,
+ .novsync = 1,
+ .blank = NULL,
+};
+
+/* SH7760:
+ * 0xFE300800: 256 * 4byte xRGB palette ram
+ * 0xFE300C00: 42 bytes ctrl registers
+ */
+static struct resource sh7760_lcdc_res[] = {
+ [0] = {
+ .start = 0xFE300800,
+ .end = 0xFE300CFF,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = 65,
+ .end = 65,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device sh7760_lcdc_dev = {
+ .dev = {
+ .platform_data = &sh7760fb_nl6448,
+ },
+ .name = "sh7760-lcdc",
+ .id = -1,
+ .resource = sh7760_lcdc_res,
+ .num_resources = ARRAY_SIZE(sh7760_lcdc_res),
+};
+
+====================== cut here ======================================
The following list of chips is thought to be supported although not all are
tested:
-those from the Image series with Cyber in their names - accelerated
-those with Blade in their names (Blade3D,CyberBlade...) - accelerated
-the newer CyberBladeXP family - nonaccelerated
-
-Only PCI/AGP based cards are supported, none of the older Tridents.
+those from the TGUI series 9440/96XX and with Cyber in their names
+those from the Image series and with Cyber in their names
+those with Blade in their names (Blade3D,CyberBlade...)
+the newer CyberBladeXP family
+
+All families are accelerated. Only PCI/AGP based cards are supported,
+none of the older Tridents.
+The driver supports 8, 16 and 32 bits per pixel depths.
+The TGUI family requires a line length to be power of 2 if acceleration
+is enabled. This means that range of possible resolutions and bpp is
+limited comparing to the range if acceleration is disabled (see list
+of parameters below).
+
+Known bugs:
+1. The driver randomly locks up on 3DImage975 chip with acceleration
+ enabled. The same happens in X11 (Xorg).
+2. The ramdac speeds require some more fine tuning. It is possible to
+ switch resolution which the chip does not support at some depths for
+ older chips.
How to use it?
==============
The parameters for tridentfb are concatenated with a ':' as in this example.
-video=tridentfb:800x600,bpp=16,noaccel
+video=tridentfb:800x600-16@75,noaccel
The second level parameters that tridentfb understands are:
noaccel - turns off acceleration (when it doesn't work for your card)
-accel - force text acceleration (for boards which by default are noacceled)
fp - use flat panel related stuff
crt - assume monitor is present instead of fp
image, otherwise use
stretch
-memsize - integer value in Kb, use if your card's memory size is misdetected.
+memsize - integer value in KB, use if your card's memory size is misdetected.
look at the driver output to see what it says when initializing.
-memdiff - integer value in Kb,should be nonzero if your card reports
- more memory than it actually has.For instance mine is 192K less than
+
+memdiff - integer value in KB, should be nonzero if your card reports
+ more memory than it actually has. For instance mine is 192K less than
detection says in all three BIOS selectable situations 2M, 4M, 8M.
Only use if your video memory is taken from main memory hence of
- configurable size.Otherwise use memsize.
- If in some modes which barely fit the memory you see garbage at the bottom
- this might help by not letting change to that mode anymore.
+ configurable size. Otherwise use memsize.
+ If in some modes which barely fit the memory you see garbage
+ at the bottom this might help by not letting change to that mode
+ anymore.
nativex - the width in pixels of the flat panel.If you know it (usually 1024
800 or 1280) and it is not what the driver seems to detect use it.
-bpp - bits per pixel (8,16 or 32)
-mode - a mode name like 800x600 (as described in Documentation/fb/modedb.txt)
+bpp - bits per pixel (8,16 or 32)
+mode - a mode name like 800x600-8@75 as described in
+ Documentation/fb/modedb.txt
Using insane values for the above parameters will probably result in driver
misbehaviour so take care(for instance memsize=12345678 or memdiff=23784 or
---------------------------
-What: asm/semaphore.h
-When: 2.6.26
-Why: Implementation became generic; users should now include
- linux/semaphore.h instead.
-Who: Matthew Wilcox <willy@linux.intel.com>
-
----------------------------
-
What: SCTP_GET_PEER_ADDRS_NUM_OLD, SCTP_GET_PEER_ADDRS_OLD,
SCTP_GET_LOCAL_ADDRS_NUM_OLD, SCTP_GET_LOCAL_ADDRS_OLD
When: June 2009
void (*close)(struct vm_area_struct*);
int (*fault)(struct vm_area_struct*, struct vm_fault *);
int (*page_mkwrite)(struct vm_area_struct *, struct page *);
+ int (*access)(struct vm_area_struct *, unsigned long, void*, int, int);
locking rules:
BKL mmap_sem PageLocked(page)
close: no yes
fault: no yes
page_mkwrite: no yes no
+access: no yes
->page_mkwrite() is called when a previously read-only page is
about to become writeable. The file system is responsible for
within i_size. The page mapping should also be checked that it is not
NULL.
+ ->access() is called when get_user_pages() fails in
+acces_process_vm(), typically used to debug a process through
+/proc/pid/mem or ptrace. This function is needed only for
+VM_IO | VM_PFNMAP VMAs.
+
================================================================================
Dubious stuff
uptime System uptime
version Kernel version
video bttv info of video resources (2.4)
+ vmallocinfo Show vmalloced areas
..............................................................................
You can, for example, check which interrupts are currently in use and what
VmallocUsed: amount of vmalloc area which is used
VmallocChunk: largest contigious block of vmalloc area which is free
+..............................................................................
+
+vmallocinfo:
+
+Provides information about vmalloced/vmaped areas. One line per area,
+containing the virtual address range of the area, size in bytes,
+caller information of the creator, and optional information depending
+on the kind of area :
+
+ pages=nr number of pages
+ phys=addr if a physical address was specified
+ ioremap I/O mapping (ioremap() and friends)
+ vmalloc vmalloc() area
+ vmap vmap()ed pages
+ user VM_USERMAP area
+ vpages buffer for pages pointers was vmalloced (huge area)
+ N<node>=nr (Only on NUMA kernels)
+ Number of pages allocated on memory node <node>
+
+> cat /proc/vmallocinfo
+0xffffc20000000000-0xffffc20000201000 2101248 alloc_large_system_hash+0x204 ...
+ /0x2c0 pages=512 vmalloc N0=128 N1=128 N2=128 N3=128
+0xffffc20000201000-0xffffc20000302000 1052672 alloc_large_system_hash+0x204 ...
+ /0x2c0 pages=256 vmalloc N0=64 N1=64 N2=64 N3=64
+0xffffc20000302000-0xffffc20000304000 8192 acpi_tb_verify_table+0x21/0x4f...
+ phys=7fee8000 ioremap
+0xffffc20000304000-0xffffc20000307000 12288 acpi_tb_verify_table+0x21/0x4f...
+ phys=7fee7000 ioremap
+0xffffc2000031d000-0xffffc2000031f000 8192 init_vdso_vars+0x112/0x210
+0xffffc2000031f000-0xffffc2000032b000 49152 cramfs_uncompress_init+0x2e ...
+ /0x80 pages=11 vmalloc N0=3 N1=3 N2=2 N3=3
+0xffffc2000033a000-0xffffc2000033d000 12288 sys_swapon+0x640/0xac0 ...
+ pages=2 vmalloc N1=2
+0xffffc20000347000-0xffffc2000034c000 20480 xt_alloc_table_info+0xfe ...
+ /0x130 [x_tables] pages=4 vmalloc N0=4
+0xffffffffa0000000-0xffffffffa000f000 61440 sys_init_module+0xc27/0x1d00 ...
+ pages=14 vmalloc N2=14
+0xffffffffa000f000-0xffffffffa0014000 20480 sys_init_module+0xc27/0x1d00 ...
+ pages=4 vmalloc N1=4
+0xffffffffa0014000-0xffffffffa0017000 12288 sys_init_module+0xc27/0x1d00 ...
+ pages=2 vmalloc N1=2
+0xffffffffa0017000-0xffffffffa0022000 45056 sys_init_module+0xc27/0x1d00 ...
+ pages=10 vmalloc N0=10
1.3 IDE devices in /proc/ide
----------------------------
SH SuperH architecture is enabled.
SMP The kernel is an SMP kernel.
SPARC Sparc architecture is enabled.
- SWSUSP Software suspend is enabled.
+ SWSUSP Software suspend (hibernation) is enabled.
+ SUSPEND System suspend states are enabled.
TS Appropriate touchscreen support is enabled.
USB USB support is enabled.
USBHID USB Human Interface Device support is enabled.
default: 0
acpi_sleep= [HW,ACPI] Sleep options
- Format: { s3_bios, s3_mode, s3_beep, old_ordering }
+ Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig, old_ordering }
See Documentation/power/video.txt for s3_bios and s3_mode.
s3_beep is for debugging; it makes the PC's speaker beep
as soon as the kernel's real-mode entry point is called.
+ s4_nohwsig prevents ACPI hardware signature from being
+ used during resume from hibernation.
old_ordering causes the ACPI 1.0 ordering of the _PTS
control method, wrt putting devices into low power
states, to be enforced (the ACPI 2.0 ordering of _PTS is
hisax= [HW,ISDN]
See Documentation/isdn/README.HiSax.
- hugepages= [HW,X86-32,IA-64] Maximal number of HugeTLB pages.
- hugepagesz= [HW,IA-64,PPC] The size of the HugeTLB pages.
+ hugepages= [HW,X86-32,IA-64] HugeTLB pages to allocate at boot.
+ hugepagesz= [HW,IA-64,PPC,X86-64] The size of the HugeTLB pages.
+ On x86-64 and powerpc, this option can be specified
+ multiple times interleaved with hugepages= to reserve
+ huge pages of different sizes. Valid pages sizes on
+ x86-64 are 2M (when the CPU supports "pse") and 1G
+ (when the CPU supports the "pdpe1gb" cpuinfo flag)
+ Note that 1GB pages can only be allocated at boot time
+ using hugepages= and not freed afterwards.
+ default_hugepagesz=
+ [same as hugepagesz=] The size of the default
+ HugeTLB page size. This is the size represented by
+ the legacy /proc/ hugepages APIs, used for SHM, and
+ default size when mounting hugetlbfs filesystems.
+ Defaults to the default architecture's huge page size
+ if not specified.
i8042.direct [HW] Put keyboard port into non-translated mode
i8042.dumbkbd [HW] Pretend that controller can only read data from
mga= [HW,DRM]
+ mminit_loglevel=
+ [KNL] When CONFIG_DEBUG_MEMORY_INIT is set, this
+ parameter allows control of the logging verbosity for
+ the additional memory initialisation checks. A value
+ of 0 disables mminit logging and a level of 4 will
+ log everything. Information is printed at KERN_DEBUG
+ so loglevel=8 may also need to be specified.
+
mousedev.tap_time=
[MOUSE] Maximum time between finger touching and
leaving touchpad surface for touch to be considered
tdfx= [HW,DRM]
+ test_suspend= [SUSPEND]
+ Specify "mem" (for Suspend-to-RAM) or "standby" (for
+ standby suspend) as the system sleep state to briefly
+ enter during system startup. The system is woken from
+ this state using a wakeup-capable RTC alarm.
+
thash_entries= [KNL,NET]
Set number of hash buckets for TCP connection
00-INDEX
- This file
+apm-acpi.txt
+ - basic info about the APM and ACPI support.
basic-pm-debugging.txt
- Debugging suspend and resume
devices.txt
- Registering suspend notifiers in device drivers
pci.txt
- How the PCI Subsystem Does Power Management
-pm.txt
- - info on Linux power management support.
pm_qos_interface.txt
- info on Linux PM Quality of Service interface
power_supply_class.txt
--- /dev/null
+APM or ACPI?
+------------
+If you have a relatively recent x86 mobile, desktop, or server system,
+odds are it supports either Advanced Power Management (APM) or
+Advanced Configuration and Power Interface (ACPI). ACPI is the newer
+of the two technologies and puts power management in the hands of the
+operating system, allowing for more intelligent power management than
+is possible with BIOS controlled APM.
+
+The best way to determine which, if either, your system supports is to
+build a kernel with both ACPI and APM enabled (as of 2.3.x ACPI is
+enabled by default). If a working ACPI implementation is found, the
+ACPI driver will override and disable APM, otherwise the APM driver
+will be used.
+
+No, sorry, you cannot have both ACPI and APM enabled and running at
+once. Some people with broken ACPI or broken APM implementations
+would like to use both to get a full set of working features, but you
+simply cannot mix and match the two. Only one power management
+interface can be in control of the machine at once. Think about it..
+
+User-space Daemons
+------------------
+Both APM and ACPI rely on user-space daemons, apmd and acpid
+respectively, to be completely functional. Obtain both of these
+daemons from your Linux distribution or from the Internet (see below)
+and be sure that they are started sometime in the system boot process.
+Go ahead and start both. If ACPI or APM is not available on your
+system the associated daemon will exit gracefully.
+
+ apmd: http://worldvisions.ca/~apenwarr/apmd/
+ acpid: http://acpid.sf.net/
+++ /dev/null
- Linux Power Management Support
-
-This document briefly describes how to use power management with your
-Linux system and how to add power management support to Linux drivers.
-
-APM or ACPI?
-------------
-If you have a relatively recent x86 mobile, desktop, or server system,
-odds are it supports either Advanced Power Management (APM) or
-Advanced Configuration and Power Interface (ACPI). ACPI is the newer
-of the two technologies and puts power management in the hands of the
-operating system, allowing for more intelligent power management than
-is possible with BIOS controlled APM.
-
-The best way to determine which, if either, your system supports is to
-build a kernel with both ACPI and APM enabled (as of 2.3.x ACPI is
-enabled by default). If a working ACPI implementation is found, the
-ACPI driver will override and disable APM, otherwise the APM driver
-will be used.
-
-No, sorry, you cannot have both ACPI and APM enabled and running at
-once. Some people with broken ACPI or broken APM implementations
-would like to use both to get a full set of working features, but you
-simply cannot mix and match the two. Only one power management
-interface can be in control of the machine at once. Think about it..
-
-User-space Daemons
-------------------
-Both APM and ACPI rely on user-space daemons, apmd and acpid
-respectively, to be completely functional. Obtain both of these
-daemons from your Linux distribution or from the Internet (see below)
-and be sure that they are started sometime in the system boot process.
-Go ahead and start both. If ACPI or APM is not available on your
-system the associated daemon will exit gracefully.
-
- apmd: http://worldvisions.ca/~apenwarr/apmd/
- acpid: http://acpid.sf.net/
-
-Driver Interface -- OBSOLETE, DO NOT USE!
-----------------*************************
-
-Note: pm_register(), pm_access(), pm_dev_idle() and friends are
-obsolete. Please do not use them. Instead you should properly hook
-your driver into the driver model, and use its suspend()/resume()
-callbacks to do this kind of stuff.
-
-If you are writing a new driver or maintaining an old driver, it
-should include power management support. Without power management
-support, a single driver may prevent a system with power management
-capabilities from ever being able to suspend (safely).
-
-Overview:
-1) Register each instance of a device with "pm_register"
-2) Call "pm_access" before accessing the hardware.
- (this will ensure that the hardware is awake and ready)
-3) Your "pm_callback" is called before going into a
- suspend state (ACPI D1-D3) or after resuming (ACPI D0)
- from a suspend.
-4) Call "pm_dev_idle" when the device is not being used
- (optional but will improve device idle detection)
-5) When unloaded, unregister the device with "pm_unregister"
-
-/*
- * Description: Register a device with the power-management subsystem
- *
- * Parameters:
- * type - device type (PCI device, system device, ...)
- * id - instance number or unique identifier
- * cback - request handler callback (suspend, resume, ...)
- *
- * Returns: Registered PM device or NULL on error
- *
- * Examples:
- * dev = pm_register(PM_SYS_DEV, PM_SYS_VGA, vga_callback);
- *
- * struct pci_dev *pci_dev = pci_find_dev(...);
- * dev = pm_register(PM_PCI_DEV, PM_PCI_ID(pci_dev), callback);
- */
-struct pm_dev *pm_register(pm_dev_t type, unsigned long id, pm_callback cback);
-
-/*
- * Description: Unregister a device with the power management subsystem
- *
- * Parameters:
- * dev - PM device previously returned from pm_register
- */
-void pm_unregister(struct pm_dev *dev);
-
-/*
- * Description: Unregister all devices with a matching callback function
- *
- * Parameters:
- * cback - previously registered request callback
- *
- * Notes: Provided for easier porting from old APM interface
- */
-void pm_unregister_all(pm_callback cback);
-
-/*
- * Power management request callback
- *
- * Parameters:
- * dev - PM device previously returned from pm_register
- * rqst - request type
- * data - data, if any, associated with the request
- *
- * Returns: 0 if the request is successful
- * EINVAL if the request is not supported
- * EBUSY if the device is now busy and cannot handle the request
- * ENOMEM if the device was unable to handle the request due to memory
- *
- * Details: The device request callback will be called before the
- * device/system enters a suspend state (ACPI D1-D3) or
- * or after the device/system resumes from suspend (ACPI D0).
- * For PM_SUSPEND, the ACPI D-state being entered is passed
- * as the "data" argument to the callback. The device
- * driver should save (PM_SUSPEND) or restore (PM_RESUME)
- * device context when the request callback is called.
- *
- * Once a driver returns 0 (success) from a suspend
- * request, it should not process any further requests or
- * access the device hardware until a call to "pm_access" is made.
- */
-typedef int (*pm_callback)(struct pm_dev *dev, pm_request_t rqst, void *data);
-
-Driver Details
---------------
-This is just a quick Q&A as a stopgap until a real driver writers'
-power management guide is available.
-
-Q: When is a device suspended?
-
-Devices can be suspended based on direct user request (eg. laptop lid
-closes), system power policy (eg. sleep after 30 minutes of console
-inactivity), or device power policy (eg. power down device after 5
-minutes of inactivity)
-
-Q: Must a driver honor a suspend request?
-
-No, a driver can return -EBUSY from a suspend request and this
-will stop the system from suspending. When a suspend request
-fails, all suspended devices are resumed and the system continues
-to run. Suspend can be retried at a later time.
-
-Q: Can the driver block suspend/resume requests?
-
-Yes, a driver can delay its return from a suspend or resume
-request until the device is ready to handle requests. It
-is advantageous to return as quickly as possible from a
-request as suspend/resume are done serially.
-
-Q: What context is a suspend/resume initiated from?
-
-A suspend or resume is initiated from a kernel thread context.
-It is safe to block, allocate memory, initiate requests
-or anything else you can do within the kernel.
-
-Q: Will requests continue to arrive after a suspend?
-
-Possibly. It is the driver's responsibility to queue(*),
-fail, or drop any requests that arrive after returning
-success to a suspend request. It is important that the
-driver not access its device until after it receives
-a resume request as the device's bus may no longer
-be active.
-
-(*) If a driver queues requests for processing after
- resume be aware that the device, network, etc.
- might be in a different state than at suspend time.
- It's probably better to drop requests unless
- the driver is a storage device.
-
-Q: Do I have to manage bus-specific power management registers
-
-No. It is the responsibility of the bus driver to manage
-PCI, USB, etc. power management registers. The bus driver
-or the power management subsystem will also enable any
-wake-on functionality that the device has.
-
-Q: So, really, what do I need to do to support suspend/resume?
-
-You need to save any device context that would
-be lost if the device was powered off and then restore
-it at resume time. When ACPI is active, there are
-three levels of device suspend states; D1, D2, and D3.
-(The suspend state is passed as the "data" argument
-to the device callback.) With D3, the device is powered
-off and loses all context, D1 and D2 are shallower power
-states and require less device context to be saved. To
-play it safe, just save everything at suspend and restore
-everything at resume.
-
-Q: Where do I store device context for suspend?
-
-Anywhere in memory, kmalloc a buffer or store it
-in the device descriptor. You are guaranteed that the
-contents of memory will be restored and accessible
-before resume, even when the system suspends to disk.
-
-Q: What do I need to do for ACPI vs. APM vs. etc?
-
-Drivers need not be aware of the specific power management
-technology that is active. They just need to be aware
-of when the overlying power management system requests
-that they suspend or resume.
-
-Q: What about device dependencies?
-
-When a driver registers a device, the power management
-subsystem uses the information provided to build a
-tree of device dependencies (eg. USB device X is on
-USB controller Y which is on PCI bus Z) When power
-management wants to suspend a device, it first sends
-a suspend request to its driver, then the bus driver,
-and so on up to the system bus. Device resumes
-proceed in the opposite direction.
-
-Q: Who do I contact for additional information about
- enabling power management for my specific driver/device?
-
-ACPI Development mailing list: linux-acpi@vger.kernel.org
-
-System Interface -- OBSOLETE, DO NOT USE!
-----------------*************************
-If you are providing new power management support to Linux (ie.
-adding support for something like APM or ACPI), you should
-communicate with drivers through the existing generic power
-management interface.
-
-/*
- * Send a request to all devices
- *
- * Parameters:
- * rqst - request type
- * data - data, if any, associated with the request
- *
- * Returns: 0 if the request is successful
- * See "pm_callback" return for errors
- *
- * Details: Walk list of registered devices and call pm_send
- * for each until complete or an error is encountered.
- * If an error is encountered for a suspend request,
- * return all devices to the state they were in before
- * the suspend request.
- */
-int pm_send_all(pm_request_t rqst, void *data);
-
-/*
- * Find a matching device
- *
- * Parameters:
- * type - device type (PCI device, system device, or 0 to match all devices)
- * from - previous match or NULL to start from the beginning
- *
- * Returns: Matching device or NULL if none found
- */
-struct pm_dev *pm_find(pm_dev_t type, struct pm_dev *from);
allowed on the system until one of the two sysctls are increased
sufficiently, or the surplus huge pages go out of use and are freed.
+With support for multiple hugepage pools at run-time available, much of
+the hugepage userspace interface has been duplicated in sysfs. The above
+information applies to the default hugepage size (which will be
+controlled by the proc interfaces for backwards compatibility). The root
+hugepage control directory is
+
+ /sys/kernel/mm/hugepages
+
+For each hugepage size supported by the running kernel, a subdirectory
+will exist, of the form
+
+ hugepages-${size}kB
+
+Inside each of these directories, the same set of files will exist:
+
+ nr_hugepages
+ nr_overcommit_hugepages
+ free_hugepages
+ resv_hugepages
+ surplus_hugepages
+
+which function as described above for the default hugepage-sized case.
+
If the user applications are going to request hugepages using mmap system
call, then it is required that system administrator mount a file system of
type hugetlbfs:
M: carlos@strangeworlds.co.uk
S: Odd Fixes
-HPET: High Precision Event Timers driver (hpet.c)
+HPET: High Precision Event Timers driver (drivers/char/hpet.c)
P: Clemens Ladisch
M: clemens@ladisch.de
S: Maintained
L: tpmdd-devel@lists.sourceforge.net
S: Maintained
-TRIDENT 4DWAVE/SIS 7018 PCI AUDIO CORE
-P: Muli Ben-Yehuda
-M: mulix@mulix.org
-L: linux-kernel@vger.kernel.org
-S: Maintained
-
TRIVIAL PATCHES
P: Jesper Juhl
M: trivial@kernel.org
L: uclinux-dev@uclinux.org (subscribers-only)
S: Maintained
-UCLINUX FOR NEC V850
-P: Miles Bader
-
UCLINUX FOR RENESAS H8/300
P: Yoshinori Sato
M: ysato@users.sourceforge.jp
def_bool y
depends on KPROBES && HAVE_KRETPROBES
+config HAVE_IOREMAP_PROT
+ def_bool n
+
config HAVE_KPROBES
def_bool n
config USE_GENERIC_SMP_HELPERS
def_bool n
+
+config HAVE_CLK
+ def_bool n
+ help
+ The <linux/clk.h> calls support software clock gating and
+ thus are a key power management tool on many systems.
+
config IOMMU_HELPER
def_bool PCI
-config ALPHA_CORE_AGP
- bool
- depends on ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL
- default y
-
config ALPHA_NONAME
bool
depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
#include <asm/pgalloc.h>
pg_data_t node_data[MAX_NUMNODES];
-bootmem_data_t node_bdata[MAX_NUMNODES];
EXPORT_SYMBOL(node_data);
#undef DEBUG_DISCONTIG
printk(" not enough mem to reserve NODE_DATA");
return;
}
- NODE_DATA(nid)->bdata = &node_bdata[nid];
+ NODE_DATA(nid)->bdata = &bootmem_node_data[nid];
printk(" Detected node memory: start %8lu, end %8lu\n",
node_min_pfn, node_max_pfn);
dma_local_pfn = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
for_each_online_node(nid) {
- unsigned long start_pfn = node_bdata[nid].node_boot_start >> PAGE_SHIFT;
- unsigned long end_pfn = node_bdata[nid].node_low_pfn;
+ bootmem_data_t *bdata = &bootmem_node_data[nid];
+ unsigned long start_pfn = bdata->node_min_pfn;
+ unsigned long end_pfn = bdata->node_low_pfn;
if (dma_local_pfn >= end_pfn - start_pfn)
zones_size[ZONE_DMA] = end_pfn - start_pfn;
zones_size[ZONE_DMA] = dma_local_pfn;
zones_size[ZONE_NORMAL] = (end_pfn - start_pfn) - dma_local_pfn;
}
- free_area_init_node(nid, NODE_DATA(nid), zones_size, start_pfn, NULL);
+ free_area_init_node(nid, zones_size, start_pfn, NULL);
}
/* Initialize the kernel's ZERO_PGE. */
config ARCH_AAEC2000
bool "Agilent AAEC-2000 based"
select ARM_AMBA
+ select HAVE_CLK
help
This enables support for systems based on the Agilent AAEC-2000
config ARCH_INTEGRATOR
bool "ARM Ltd. Integrator family"
select ARM_AMBA
+ select HAVE_CLK
select ICST525
help
Support for ARM's Integrator platform.
config ARCH_REALVIEW
bool "ARM Ltd. RealView family"
select ARM_AMBA
+ select HAVE_CLK
select ICST307
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
bool "ARM Ltd. Versatile family"
select ARM_AMBA
select ARM_VIC
+ select HAVE_CLK
select ICST307
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select ARM_AMBA
select ARM_VIC
select GENERIC_GPIO
+ select HAVE_CLK
+ select HAVE_CLK
select HAVE_GPIO_LIB
help
This enables support for the Cirrus EP93xx series of CPUs.
select GENERIC_GPIO
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
+ select HAVE_CLK
help
Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
System.
config ARCH_PNX4008
bool "Philips Nexperia PNX4008 Mobile"
+ select HAVE_CLK
help
This enables support for Philips PNX4008 mobile platform.
depends on MMU
select ARCH_MTD_XIP
select GENERIC_GPIO
+ select HAVE_CLK
select HAVE_GPIO_LIB
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select GENERIC_GPIO
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
+ select HAVE_CLK
select TICK_ONESHOT
select HAVE_GPIO_LIB
help
config ARCH_S3C2410
bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
select GENERIC_GPIO
+ select HAVE_CLK
help
Samsung S3C2410X CPU based systems, such as the Simtec Electronics
BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select GENERIC_GPIO
+ select HAVE_CLK
help
Support for TI's DaVinci platform.
config ARCH_OMAP
bool "TI OMAP"
select GENERIC_GPIO
+ select HAVE_CLK
select HAVE_GPIO_LIB
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
#include <linux/module.h>
#include <linux/moduleloader.h>
#include <linux/kernel.h>
+#include <linux/mm.h>
#include <linux/elf.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/f75375s.h>
+#include <linux/leds-pca9532.h>
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/pci.h>
.pwm_enable = { 0, 0 },
};
+static struct pca9532_platform_data n2100_leds = {
+ .leds = {
+ { .name = "n2100:red:satafail0",
+ .state = PCA9532_OFF,
+ .type = PCA9532_TYPE_LED,
+ },
+ { .name = "n2100:red:satafail1",
+ .state = PCA9532_OFF,
+ .type = PCA9532_TYPE_LED,
+ },
+ { .name = "n2100:blue:usb",
+ .state = PCA9532_OFF,
+ .type = PCA9532_TYPE_LED,
+ },
+ { .type = PCA9532_TYPE_NONE },
+
+ { .type = PCA9532_TYPE_NONE },
+ { .type = PCA9532_TYPE_NONE },
+ { .type = PCA9532_TYPE_NONE },
+ { .name = "n2100:red:usb",
+ .state = PCA9532_OFF,
+ .type = PCA9532_TYPE_LED,
+ },
+
+ { .type = PCA9532_TYPE_NONE }, /* power OFF gpio */
+ { .type = PCA9532_TYPE_NONE }, /* reset gpio */
+ { .type = PCA9532_TYPE_NONE },
+ { .type = PCA9532_TYPE_NONE },
+
+ { .type = PCA9532_TYPE_NONE },
+ { .name = "n2100:orange:system",
+ .state = PCA9532_OFF,
+ .type = PCA9532_TYPE_LED,
+ },
+ { .name = "n2100:red:system",
+ .state = PCA9532_OFF,
+ .type = PCA9532_TYPE_LED,
+ },
+ { .name = "N2100 beeper" ,
+ .state = PCA9532_OFF,
+ .type = PCA9532_TYPE_N2100_BEEP,
+ },
+ },
+ .psc = { 0, 0 },
+ .pwm = { 0, 0 },
+};
+
static struct i2c_board_info __initdata n2100_i2c_devices[] = {
{
I2C_BOARD_INFO("rs5c372b", 0x32),
I2C_BOARD_INFO("f75375", 0x2e),
.platform_data = &n2100_f75375s,
},
+ {
+ I2C_BOARD_INFO("pca9532", 0x60),
+ .platform_data = &n2100_leds,
+ },
};
/*
#include <linux/clk.h>
#include <linux/string.h>
#include <linux/platform_device.h>
+#include <linux/semaphore.h>
-#include <asm/semaphore.h>
#include "clock.h"
static LIST_HEAD(clocks);
* Our node_data structure for discontiguous memory.
*/
-static bootmem_data_t node_bootmem_data[MAX_NUMNODES];
-
pg_data_t discontig_node_data[MAX_NUMNODES] = {
- { .bdata = &node_bootmem_data[0] },
- { .bdata = &node_bootmem_data[1] },
- { .bdata = &node_bootmem_data[2] },
- { .bdata = &node_bootmem_data[3] },
+ { .bdata = &bootmem_node_data[0] },
+ { .bdata = &bootmem_node_data[1] },
+ { .bdata = &bootmem_node_data[2] },
+ { .bdata = &bootmem_node_data[3] },
#if MAX_NUMNODES == 16
- { .bdata = &node_bootmem_data[4] },
- { .bdata = &node_bootmem_data[5] },
- { .bdata = &node_bootmem_data[6] },
- { .bdata = &node_bootmem_data[7] },
- { .bdata = &node_bootmem_data[8] },
- { .bdata = &node_bootmem_data[9] },
- { .bdata = &node_bootmem_data[10] },
- { .bdata = &node_bootmem_data[11] },
- { .bdata = &node_bootmem_data[12] },
- { .bdata = &node_bootmem_data[13] },
- { .bdata = &node_bootmem_data[14] },
- { .bdata = &node_bootmem_data[15] },
+ { .bdata = &bootmem_node_data[4] },
+ { .bdata = &bootmem_node_data[5] },
+ { .bdata = &bootmem_node_data[6] },
+ { .bdata = &bootmem_node_data[7] },
+ { .bdata = &bootmem_node_data[8] },
+ { .bdata = &bootmem_node_data[9] },
+ { .bdata = &bootmem_node_data[10] },
+ { .bdata = &bootmem_node_data[11] },
+ { .bdata = &bootmem_node_data[12] },
+ { .bdata = &bootmem_node_data[13] },
+ { .bdata = &bootmem_node_data[14] },
+ { .bdata = &bootmem_node_data[15] },
#endif
};
*/
arch_adjust_zones(node, zone_size, zhole_size);
- free_area_init_node(node, pgdat, zone_size, start_pfn, zhole_size);
+ free_area_init_node(node, zone_size, start_pfn, zhole_size);
return end_pfn;
}
#include <linux/module.h>
#include <linux/kernel.h>
+#include <linux/mm.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/bootmem.h>
return;
bdata = NODE_DATA(0)->bdata;
- sdram_start = bdata->node_boot_start;
+ sdram_start = bdata->node_min_pfn << PAGE_SHIFT;
sdram_size = (bdata->node_low_pfn << PAGE_SHIFT) - sdram_start;
reserved = 0;
for (i = 0; ; i++) {
#endif
-
-
# With EMBEDDED=n, we get lots of stuff automatically selected
# that we usually don't need on AVR32.
select EMBEDDED
+ select HAVE_CLK
select HAVE_OPROFILE
select HAVE_KPROBES
help
unsigned long zones_size[MAX_NR_ZONES];
unsigned long low, start_pfn;
- start_pfn = pgdat->bdata->node_boot_start;
- start_pfn >>= PAGE_SHIFT;
+ start_pfn = pgdat->bdata->node_min_pfn;
low = pgdat->bdata->node_low_pfn;
memset(zones_size, 0, sizeof(zones_size));
printk("Node %u: start_pfn = 0x%lx, low = 0x%lx\n",
nid, start_pfn, low);
- free_area_init_node(nid, pgdat, zones_size, start_pfn, NULL);
+ free_area_init_node(nid, zones_size, start_pfn, NULL);
printk("Node %u: mem_map starts at %p\n",
pgdat->node_id, pgdat->node_mem_map);
* published by the Free Software Foundation.
*/
#include <linux/vmalloc.h>
+#include <linux/mm.h>
#include <linux/module.h>
#include <linux/io.h>
* mem_map page array.
*/
- free_area_init_node(0, &contig_page_data, zones_size, PAGE_OFFSET >> PAGE_SHIFT, 0);
+ free_area_init_node(0, zones_size, PAGE_OFFSET >> PAGE_SHIFT, 0);
}
/* Initialize remaps of some I/O-ports. It is important that this
* substantially higher than 0, like us (we start at PAGE_OFFSET). This
* saves space in the mem_map page array.
*/
- free_area_init_node(0, &contig_page_data, zones_size, PAGE_OFFSET >> PAGE_SHIFT, 0);
+ free_area_init_node(0, zones_size, PAGE_OFFSET >> PAGE_SHIFT, 0);
mem_map = contig_page_data.node_mem_map;
}
size_t count, loff_t *ppos)
{
unsigned long p = *ppos;
+ ssize_t ret;
- if (p > SAMPLE_BUFFER_SIZE)
- return 0;
+ ret = simple_read_from_buffer(buf, count, ppos, sample_buffer,
+ SAMPLE_BUFFER_SIZE);
+ if (ret < 0)
+ return ret;
- if (p + count > SAMPLE_BUFFER_SIZE)
- count = SAMPLE_BUFFER_SIZE - p;
- if (copy_to_user(buf, sample_buffer + p,count))
- return -EFAULT;
+ memset(sample_buffer + p, 0, ret);
- memset(sample_buffer + p, 0, count);
- *ppos += count;
-
- return count;
+ return ret;
}
static ssize_t
#include <linux/init.h>
#include <linux/module.h>
#include <linux/pm.h>
-#include <linux/pm_legacy.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/sysctl.h>
#include <linux/sched.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
+#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/fb.h>
#include <linux/console.h>
int retval;
int fds[2];
- retval = do_pipe(fds);
+ retval = do_pipe_flags(fds, 0);
if (retval)
goto out;
if (copy_to_user(fd, fds, sizeof(fds)))
int fd[2];
int retval;
- retval = do_pipe(fd);
+ retval = do_pipe_flags(fd, 0);
if (retval)
goto out;
retval = fd[0];
struct ia64_node_data *node_data;
unsigned long pernode_addr;
unsigned long pernode_size;
- struct bootmem_data bootmem_data;
unsigned long num_physpages;
#ifdef CONFIG_ZONE_DMA
unsigned long num_dma_physpages;
static int __init build_node_maps(unsigned long start, unsigned long len,
int node)
{
- unsigned long cstart, epfn, end = start + len;
- struct bootmem_data *bdp = &mem_data[node].bootmem_data;
+ unsigned long spfn, epfn, end = start + len;
+ struct bootmem_data *bdp = &bootmem_node_data[node];
epfn = GRANULEROUNDUP(end) >> PAGE_SHIFT;
- cstart = GRANULEROUNDDOWN(start);
+ spfn = GRANULEROUNDDOWN(start) >> PAGE_SHIFT;
if (!bdp->node_low_pfn) {
- bdp->node_boot_start = cstart;
+ bdp->node_min_pfn = spfn;
bdp->node_low_pfn = epfn;
} else {
- bdp->node_boot_start = min(cstart, bdp->node_boot_start);
+ bdp->node_min_pfn = min(spfn, bdp->node_min_pfn);
bdp->node_low_pfn = max(epfn, bdp->node_low_pfn);
}
{
void *cpu_data;
int cpus = early_nr_cpus_node(node);
- struct bootmem_data *bdp = &mem_data[node].bootmem_data;
+ struct bootmem_data *bdp = &bootmem_node_data[node];
mem_data[node].pernode_addr = pernode;
mem_data[node].pernode_size = pernodesize;
static int __init find_pernode_space(unsigned long start, unsigned long len,
int node)
{
- unsigned long epfn;
+ unsigned long spfn, epfn;
unsigned long pernodesize = 0, pernode, pages, mapsize;
- struct bootmem_data *bdp = &mem_data[node].bootmem_data;
+ struct bootmem_data *bdp = &bootmem_node_data[node];
+ spfn = start >> PAGE_SHIFT;
epfn = (start + len) >> PAGE_SHIFT;
- pages = bdp->node_low_pfn - (bdp->node_boot_start >> PAGE_SHIFT);
+ pages = bdp->node_low_pfn - bdp->node_min_pfn;
mapsize = bootmem_bootmap_pages(pages) << PAGE_SHIFT;
/*
* Make sure this memory falls within this node's usable memory
* since we may have thrown some away in build_maps().
*/
- if (start < bdp->node_boot_start || epfn > bdp->node_low_pfn)
+ if (spfn < bdp->node_min_pfn || epfn > bdp->node_low_pfn)
return 0;
/* Don't setup this node's local space twice... */
bdp = pdp->bdata;
/* First the bootmem_map itself */
- pages = bdp->node_low_pfn - (bdp->node_boot_start>>PAGE_SHIFT);
+ pages = bdp->node_low_pfn - bdp->node_min_pfn;
size = bootmem_bootmap_pages(pages) << PAGE_SHIFT;
base = __pa(bdp->node_bootmem_map);
reserve_bootmem_node(pdp, base, size, BOOTMEM_DEFAULT);
efi_memmap_walk(find_max_min_low_pfn, NULL);
for_each_online_node(node)
- if (mem_data[node].bootmem_data.node_low_pfn) {
+ if (bootmem_node_data[node].node_low_pfn) {
node_clear(node, memory_less_mask);
mem_data[node].min_pfn = ~0UL;
}
else if (node_isset(node, memory_less_mask))
continue;
- bdp = &mem_data[node].bootmem_data;
+ bdp = &bootmem_node_data[node];
pernode = mem_data[node].pernode_addr;
pernodesize = mem_data[node].pernode_size;
map = pernode + pernodesize;
init_bootmem_node(pgdat_list[node],
map>>PAGE_SHIFT,
- bdp->node_boot_start>>PAGE_SHIFT,
+ bdp->node_min_pfn,
bdp->node_low_pfn);
}
unsigned int hpage_shift=HPAGE_SHIFT_DEFAULT;
pte_t *
-huge_pte_alloc (struct mm_struct *mm, unsigned long addr)
+huge_pte_alloc(struct mm_struct *mm, unsigned long addr, unsigned long sz)
{
unsigned long taddr = htlbpage_to_page(addr);
pgd_t *pgd;
* Don't actually need to do any preparation, but need to make sure
* the address is in the right region.
*/
-int prepare_hugepage_range(unsigned long addr, unsigned long len)
+int prepare_hugepage_range(struct file *file,
+ unsigned long addr, unsigned long len)
{
if (len & ~HPAGE_MASK)
return -EINVAL;
{
return 0;
}
+
+int pud_huge(pud_t pud)
+{
+ return 0;
+}
+
struct page *
follow_huge_pmd(struct mm_struct *mm, unsigned long address, pmd_t *pmd, int write)
{
return NULL;
}
-void hugetlb_free_pgd_range(struct mmu_gather **tlb,
+void hugetlb_free_pgd_range(struct mmu_gather *tlb,
unsigned long addr, unsigned long end,
unsigned long floor, unsigned long ceiling)
{
/* Handle MAP_FIXED */
if (flags & MAP_FIXED) {
- if (prepare_hugepage_range(addr, len))
+ if (prepare_hugepage_range(file, addr, len))
return -EINVAL;
return addr;
}
struct pglist_data *node_data[MAX_NUMNODES];
EXPORT_SYMBOL(node_data);
-static bootmem_data_t node_bdata[MAX_NUMNODES] __initdata;
pg_data_t m32r_node_data[MAX_NUMNODES];
for_each_online_node(nid) {
mp = &mem_prof[nid];
NODE_DATA(nid)=(pg_data_t *)&m32r_node_data[nid];
- NODE_DATA(nid)->bdata = &node_bdata[nid];
+ NODE_DATA(nid)->bdata = &bootmem_node_data[nid];
min_pfn = mp->start_pfn;
max_pfn = mp->start_pfn + mp->pages;
bootmap_size = init_bootmem_node(NODE_DATA(nid), mp->free_pfn,
return max_low_pfn;
}
-#define START_PFN(nid) \
- (NODE_DATA(nid)->bdata->node_boot_start >> PAGE_SHIFT)
+#define START_PFN(nid) (NODE_DATA(nid)->bdata->node_min_pfn)
#define MAX_LOW_PFN(nid) (NODE_DATA(nid)->bdata->node_low_pfn)
unsigned long __init zone_sizes_init(void)
zholes_size[ZONE_DMA] = mp->holes;
holes += zholes_size[ZONE_DMA];
- free_area_init_node(nid, NODE_DATA(nid), zones_size,
- start_pfn, zholes_size);
+ free_area_init_node(nid, zones_size, start_pfn, zholes_size);
}
/*
return holes;
}
-
#endif
/* It'd be good if these lines were in the standard header file. */
-#define START_PFN(nid) \
- (NODE_DATA(nid)->bdata->node_boot_start >> PAGE_SHIFT)
+#define START_PFN(nid) (NODE_DATA(nid)->bdata->node_min_pfn)
#define MAX_LOW_PFN(nid) (NODE_DATA(nid)->bdata->node_low_pfn)
#ifndef CONFIG_DISCONTIGMEM
start_pfn = __MEMORY_START >> PAGE_SHIFT;
#endif /* CONFIG_MMU */
- free_area_init_node(0, NODE_DATA(0), zones_size, start_pfn, 0);
+ free_area_init_node(0, zones_size, start_pfn, 0);
return 0;
}
printk (KERN_INFO "Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
}
#endif
-
#include <linux/types.h>
#include <linux/kernel.h>
+#include <linux/mm.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/slab.h>
DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-static bootmem_data_t __initdata bootmem_data[MAX_NUMNODES];
-
pg_data_t pg_data_map[MAX_NUMNODES];
EXPORT_SYMBOL(pg_data_map);
pg_data_table[i] = pg_data_map + node;
}
#endif
- pg_data_map[node].bdata = bootmem_data + node;
+ pg_data_map[node].bdata = bootmem_node_data + node;
node_set_online(node);
}
#endif
for (i = 0; i < m68k_num_memory; i++) {
zones_size[ZONE_DMA] = m68k_memory[i].size >> PAGE_SHIFT;
- free_area_init_node(i, pg_data_map + i, zones_size,
+ free_area_init_node(i, zones_size,
m68k_memory[i].addr >> PAGE_SHIFT, NULL);
}
}
/* I really wish I knew why the following change made things better... -- Sam */
/* free_area_init(zones_size); */
- free_area_init_node(0, NODE_DATA(0), zones_size,
+ free_area_init_node(0, zones_size,
(__pa(PAGE_OFFSET) >> PAGE_SHIFT) + 1, NULL);
bool
default y
+config GENERIC_CMOS_UPDATE
+ bool
+ default y
+
config TIME_LOW_RES
bool
default y
+config GENERIC_CLOCKEVENTS
+ bool
+ default n
+
config NO_IOPORT
def_bool y
config M520x
bool "MCF520x"
+ select GENERIC_CLOCKEVENTS
help
Freescale Coldfire 5207/5208 processor support.
config M523x
bool "MCF523x"
+ select GENERIC_CLOCKEVENTS
help
Freescale Coldfire 5230/1/2/4/5 processor support
config M528x
bool "MCF528x"
+ select GENERIC_CLOCKEVENTS
help
Motorola ColdFire 5280/5282 processor support.
config M527x
bool
depends on (M5271 || M5275)
+ select GENERIC_CLOCKEVENTS
default y
config COLDFIRE
if COLDFIRE
source "kernel/Kconfig.preempt"
endif
+
+source "kernel/time/Kconfig"
+
source "mm/Kconfig"
endmenu
# (C) Copyright 2002, Greg Ungerer <gerg@snapgear.com>
#
+KBUILD_DEFCONFIG := m5208evb_defconfig
+
platform-$(CONFIG_M68328) := 68328
platform-$(CONFIG_M68EZ328) := 68EZ328
platform-$(CONFIG_M68VZ328) := 68VZ328
cflags-$(CONFIG_M5206) := -m5200
cflags-$(CONFIG_M5206e) := -m5200
cflags-$(CONFIG_M520x) := -m5307
-cflags-$(CONFIG_M523x) := -m5307
+cflags-$(CONFIG_M523x) := $(call cc-option,-mcpu=523x,-m5307)
cflags-$(CONFIG_M5249) := -m5200
-cflags-$(CONFIG_M527x) := -m5307
+cflags-$(CONFIG_M5271) := $(call cc-option,-mcpu=5271,-m5307)
cflags-$(CONFIG_M5272) := -m5307
-cflags-$(CONFIG_M528x) := -m5307
+cflags-$(CONFIG_M5275) := $(call cc-option,-mcpu=5275,-m5307)
+cflags-$(CONFIG_M528x) := $(call cc-option,-m528x,-m5307)
cflags-$(CONFIG_M5307) := -m5307
-cflags-$(CONFIG_M532x) := -m5307
+cflags-$(CONFIG_M532x) := $(call cc-option,-mcpu=532x,-m5307)
cflags-$(CONFIG_M5407) := -m5200
cflags-$(CONFIG_M68328) := -m68000
cflags-$(CONFIG_M68EZ328) := -m68000
--- /dev/null
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.26-rc1
+#
+CONFIG_M68K=y
+# CONFIG_MMU is not set
+# CONFIG_FPU is not set
+CONFIG_ZONE_DMA=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_GENERIC_FIND_NEXT_BIT=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_TIME=y
+CONFIG_TIME_LOW_RES=y
+CONFIG_NO_IOPORT=y
+CONFIG_ARCH_SUPPORTS_AOUT=y
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+# CONFIG_SYSVIPC is not set
+# CONFIG_POSIX_MQUEUE is not set
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_AUDIT is not set
+# CONFIG_IKCONFIG is not set
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+# CONFIG_GROUP_SCHED is not set
+# CONFIG_RELAY is not set
+# CONFIG_NAMESPACES is not set
+# CONFIG_BLK_DEV_INITRD is not set
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_SYSCTL=y
+CONFIG_EMBEDDED=y
+# CONFIG_UID16 is not set
+# CONFIG_SYSCTL_SYSCALL is not set
+# CONFIG_KALLSYMS is not set
+# CONFIG_HOTPLUG is not set
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_BASE_FULL=y
+# CONFIG_FUTEX is not set
+# CONFIG_EPOLL is not set
+# CONFIG_SIGNALFD is not set
+# CONFIG_TIMERFD is not set
+# CONFIG_EVENTFD is not set
+# CONFIG_VM_EVENT_COUNTERS is not set
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
+# CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
+# CONFIG_HAVE_OPROFILE is not set
+# CONFIG_HAVE_KPROBES is not set
+# CONFIG_HAVE_KRETPROBES is not set
+# CONFIG_HAVE_DMA_ATTRS is not set
+CONFIG_SLABINFO=y
+CONFIG_TINY_SHMEM=y
+CONFIG_BASE_SMALL=0
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_MODULE_FORCE_UNLOAD is not set
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+# CONFIG_KMOD is not set
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+# CONFIG_IOSCHED_AS is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+# CONFIG_DEFAULT_AS is not set
+# CONFIG_DEFAULT_DEADLINE is not set
+# CONFIG_DEFAULT_CFQ is not set
+CONFIG_DEFAULT_NOOP=y
+CONFIG_DEFAULT_IOSCHED="noop"
+CONFIG_CLASSIC_RCU=y
+
+#
+# Processor type and features
+#
+# CONFIG_M68328 is not set
+# CONFIG_M68EZ328 is not set
+# CONFIG_M68VZ328 is not set
+# CONFIG_M68360 is not set
+# CONFIG_M5206 is not set
+# CONFIG_M5206e is not set
+CONFIG_M520x=y
+# CONFIG_M523x is not set
+# CONFIG_M5249 is not set
+# CONFIG_M5271 is not set
+# CONFIG_M5272 is not set
+# CONFIG_M5275 is not set
+# CONFIG_M528x is not set
+# CONFIG_M5307 is not set
+# CONFIG_M532x is not set
+# CONFIG_M5407 is not set
+CONFIG_COLDFIRE=y
+CONFIG_CLOCK_SET=y
+CONFIG_CLOCK_FREQ=166666666
+CONFIG_CLOCK_DIV=2
+
+#
+# Platform
+#
+CONFIG_M5208EVB=y
+CONFIG_FREESCALE=y
+# CONFIG_4KSTACKS is not set
+CONFIG_HZ=100
+
+#
+# RAM configuration
+#
+CONFIG_RAMBASE=0x40000000
+CONFIG_RAMSIZE=0x2000000
+CONFIG_VECTORBASE=0x40000000
+CONFIG_KERNELBASE=0x40020000
+# CONFIG_RAMAUTOBIT is not set
+# CONFIG_RAM8BIT is not set
+CONFIG_RAM16BIT=y
+# CONFIG_RAM32BIT is not set
+
+#
+# ROM configuration
+#
+# CONFIG_ROM is not set
+CONFIG_RAMKERNEL=y
+# CONFIG_ROMKERNEL is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_PAGEFLAGS_EXTENDED=y
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=1
+CONFIG_VIRT_TO_BUS=y
+CONFIG_ISA_DMA_API=y
+
+#
+# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
+#
+# CONFIG_PCI is not set
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_FLAT=y
+# CONFIG_BINFMT_ZFLAT is not set
+# CONFIG_BINFMT_SHARED_FLAT is not set
+# CONFIG_BINFMT_AOUT is not set
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Power management options
+#
+# CONFIG_PM is not set
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+# CONFIG_PACKET_MMAP is not set
+CONFIG_UNIX=y
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+# CONFIG_IP_PNP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_CAN is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_CONNECTOR is not set
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_CONCAT is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+# CONFIG_MTD_CMDLINE_PARTS is not set
+# CONFIG_MTD_AR7_PARTS is not set
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+CONFIG_MTD_CFI=y
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_GEN_PROBE=y
+# CONFIG_MTD_CFI_ADV_OPTIONS is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+# CONFIG_MTD_CFI_INTELEXT is not set
+CONFIG_MTD_CFI_AMDSTD=y
+# CONFIG_MTD_CFI_STAA is not set
+CONFIG_MTD_CFI_UTIL=y
+CONFIG_MTD_RAM=y
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+# CONFIG_MTD_PHYSMAP is not set
+CONFIG_MTD_UCLINUX=y
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+# CONFIG_MTD_NAND is not set
+# CONFIG_MTD_ONENAND is not set
+
+#
+# UBI - Unsorted block images
+#
+# CONFIG_MTD_UBI is not set
+# CONFIG_PARPORT is not set
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_DEV_COW_COMMON is not set
+# CONFIG_BLK_DEV_LOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+# CONFIG_BLK_DEV_XIP is not set
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+# CONFIG_MISC_DEVICES is not set
+CONFIG_HAVE_IDE=y
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_SCSI is not set
+# CONFIG_SCSI_DMA is not set
+# CONFIG_SCSI_NETLINK is not set
+# CONFIG_MD is not set
+CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_PHYLIB is not set
+CONFIG_NET_ETHERNET=y
+# CONFIG_MII is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_B44 is not set
+CONFIG_FEC=y
+# CONFIG_FEC2 is not set
+# CONFIG_NETDEV_1000 is not set
+# CONFIG_NETDEV_10000 is not set
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+# CONFIG_IWLWIFI is not set
+# CONFIG_IWLWIFI_LEDS is not set
+# CONFIG_WAN is not set
+# CONFIG_PPP is not set
+# CONFIG_SLIP is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+# CONFIG_INPUT is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+# CONFIG_VT is not set
+# CONFIG_DEVKMEM is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_COLDFIRE is not set
+CONFIG_SERIAL_MCF=y
+CONFIG_SERIAL_MCF_BAUDRATE=115200
+CONFIG_SERIAL_MCF_CONSOLE=y
+# CONFIG_UNIX98_PTYS is not set
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+# CONFIG_IPMI_HANDLER is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_GEN_RTC is not set
+# CONFIG_R3964 is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+# CONFIG_I2C is not set
+# CONFIG_SPI is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_HWMON is not set
+# CONFIG_THERMAL is not set
+# CONFIG_WATCHDOG is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+# CONFIG_HTC_PASIC3 is not set
+
+#
+# Multimedia devices
+#
+
+#
+# Multimedia core support
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+
+#
+# Multimedia drivers
+#
+# CONFIG_DAB is not set
+
+#
+# Graphics support
+#
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_FB is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_MMC is not set
+# CONFIG_MEMSTICK is not set
+# CONFIG_NEW_LEDS is not set
+# CONFIG_ACCESSIBILITY is not set
+# CONFIG_RTC_CLASS is not set
+# CONFIG_UIO is not set
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_EXT4DEV_FS is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_INOTIFY is not set
+# CONFIG_QUOTA is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_SYSCTL=y
+# CONFIG_SYSFS is not set
+# CONFIG_TMPFS is not set
+# CONFIG_HUGETLB_PAGE is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_JFFS2_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+CONFIG_ROMFS_FS=y
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+# CONFIG_NETWORK_FILESYSTEMS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+# CONFIG_NLS is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_FRAME_WARN=1024
+# CONFIG_MAGIC_SYSRQ is not set
+# CONFIG_UNUSED_SYMBOLS is not set
+# CONFIG_HEADERS_CHECK is not set
+# CONFIG_DEBUG_KERNEL is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
+# CONFIG_SAMPLES is not set
+CONFIG_FULLDEBUG=y
+# CONFIG_HIGHPROFILE is not set
+# CONFIG_BOOTPARAM is not set
+# CONFIG_NO_KERNEL_MSG is not set
+# CONFIG_BDM_DISABLE is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+# CONFIG_CRYPTO is not set
+
+#
+# Library routines
+#
+CONFIG_BITREVERSE=y
+# CONFIG_GENERIC_FIND_FIRST_BIT is not set
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC32=y
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_DMA=y
--- /dev/null
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.26-rc1
+#
+CONFIG_M68K=y
+# CONFIG_MMU is not set
+# CONFIG_FPU is not set
+CONFIG_ZONE_DMA=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_GENERIC_FIND_NEXT_BIT=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_TIME=y
+CONFIG_TIME_LOW_RES=y
+CONFIG_NO_IOPORT=y
+CONFIG_ARCH_SUPPORTS_AOUT=y
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+# CONFIG_SYSVIPC is not set
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_IKCONFIG is not set
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+# CONFIG_GROUP_SCHED is not set
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
+# CONFIG_RELAY is not set
+# CONFIG_NAMESPACES is not set
+# CONFIG_BLK_DEV_INITRD is not set
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_SYSCTL=y
+CONFIG_EMBEDDED=y
+# CONFIG_UID16 is not set
+# CONFIG_SYSCTL_SYSCALL is not set
+# CONFIG_KALLSYMS is not set
+# CONFIG_HOTPLUG is not set
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_BASE_FULL=y
+# CONFIG_FUTEX is not set
+# CONFIG_EPOLL is not set
+# CONFIG_SIGNALFD is not set
+# CONFIG_TIMERFD is not set
+# CONFIG_EVENTFD is not set
+# CONFIG_VM_EVENT_COUNTERS is not set
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
+# CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
+# CONFIG_HAVE_OPROFILE is not set
+# CONFIG_HAVE_KPROBES is not set
+# CONFIG_HAVE_KRETPROBES is not set
+# CONFIG_HAVE_DMA_ATTRS is not set
+CONFIG_SLABINFO=y
+CONFIG_TINY_SHMEM=y
+CONFIG_BASE_SMALL=0
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_MODULE_FORCE_UNLOAD is not set
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+# CONFIG_KMOD is not set
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+# CONFIG_IOSCHED_AS is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+# CONFIG_DEFAULT_AS is not set
+# CONFIG_DEFAULT_DEADLINE is not set
+# CONFIG_DEFAULT_CFQ is not set
+CONFIG_DEFAULT_NOOP=y
+CONFIG_DEFAULT_IOSCHED="noop"
+CONFIG_CLASSIC_RCU=y
+
+#
+# Processor type and features
+#
+# CONFIG_M68328 is not set
+# CONFIG_M68EZ328 is not set
+# CONFIG_M68VZ328 is not set
+# CONFIG_M68360 is not set
+# CONFIG_M5206 is not set
+# CONFIG_M5206e is not set
+# CONFIG_M520x is not set
+# CONFIG_M523x is not set
+CONFIG_M5249=y
+# CONFIG_M5271 is not set
+# CONFIG_M5272 is not set
+# CONFIG_M5275 is not set
+# CONFIG_M528x is not set
+# CONFIG_M5307 is not set
+# CONFIG_M532x is not set
+# CONFIG_M5407 is not set
+CONFIG_COLDFIRE=y
+CONFIG_CLOCK_SET=y
+CONFIG_CLOCK_FREQ=140000000
+CONFIG_CLOCK_DIV=2
+
+#
+# Platform
+#
+CONFIG_M5249C3=y
+CONFIG_FREESCALE=y
+CONFIG_4KSTACKS=y
+CONFIG_HZ=100
+
+#
+# RAM configuration
+#
+CONFIG_RAMBASE=0x00000000
+CONFIG_RAMSIZE=0x00800000
+CONFIG_VECTORBASE=0x00000000
+CONFIG_KERNELBASE=0x00020000
+CONFIG_RAMAUTOBIT=y
+# CONFIG_RAM8BIT is not set
+# CONFIG_RAM16BIT is not set
+# CONFIG_RAM32BIT is not set
+
+#
+# ROM configuration
+#
+# CONFIG_ROM is not set
+CONFIG_RAMKERNEL=y
+# CONFIG_ROMKERNEL is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_PAGEFLAGS_EXTENDED=y
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=1
+CONFIG_VIRT_TO_BUS=y
+CONFIG_ISA_DMA_API=y
+
+#
+# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
+#
+# CONFIG_PCI is not set
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_FLAT=y
+# CONFIG_BINFMT_ZFLAT is not set
+# CONFIG_BINFMT_SHARED_FLAT is not set
+# CONFIG_BINFMT_AOUT is not set
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Power management options
+#
+# CONFIG_PM is not set
+
+#
+# Networking
+#
+# CONFIG_NET is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+# CONFIG_SYS_HYPERVISOR is not set
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_CONCAT is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+# CONFIG_MTD_CMDLINE_PARTS is not set
+# CONFIG_MTD_AR7_PARTS is not set
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+# CONFIG_MTD_CFI is not set
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+CONFIG_MTD_RAM=y
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_UCLINUX=y
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+# CONFIG_MTD_NAND is not set
+# CONFIG_MTD_ONENAND is not set
+
+#
+# UBI - Unsorted block images
+#
+# CONFIG_MTD_UBI is not set
+# CONFIG_PARPORT is not set
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_DEV_COW_COMMON is not set
+# CONFIG_BLK_DEV_LOOP is not set
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+# CONFIG_BLK_DEV_XIP is not set
+# CONFIG_CDROM_PKTCDVD is not set
+CONFIG_MISC_DEVICES=y
+# CONFIG_EEPROM_93CX6 is not set
+# CONFIG_ENCLOSURE_SERVICES is not set
+CONFIG_HAVE_IDE=y
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_SCSI is not set
+# CONFIG_SCSI_DMA is not set
+# CONFIG_SCSI_NETLINK is not set
+# CONFIG_MD is not set
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+# CONFIG_INPUT is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+# CONFIG_VT is not set
+# CONFIG_DEVKMEM is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_COLDFIRE is not set
+CONFIG_SERIAL_MCF=y
+CONFIG_SERIAL_MCF_BAUDRATE=19200
+CONFIG_SERIAL_MCF_CONSOLE=y
+# CONFIG_UNIX98_PTYS is not set
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+# CONFIG_IPMI_HANDLER is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_GEN_RTC is not set
+# CONFIG_R3964 is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+# CONFIG_I2C is not set
+# CONFIG_SPI is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_HWMON is not set
+# CONFIG_THERMAL is not set
+# CONFIG_WATCHDOG is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+# CONFIG_HTC_PASIC3 is not set
+
+#
+# Multimedia devices
+#
+
+#
+# Multimedia core support
+#
+# CONFIG_VIDEO_DEV is not set
+
+#
+# Multimedia drivers
+#
+# CONFIG_DAB is not set
+
+#
+# Graphics support
+#
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_FB is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_MMC is not set
+# CONFIG_MEMSTICK is not set
+# CONFIG_NEW_LEDS is not set
+# CONFIG_ACCESSIBILITY is not set
+# CONFIG_RTC_CLASS is not set
+# CONFIG_UIO is not set
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_EXT4DEV_FS is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_INOTIFY is not set
+# CONFIG_QUOTA is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+# CONFIG_TMPFS is not set
+# CONFIG_HUGETLB_PAGE is not set
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_JFFS2_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+CONFIG_ROMFS_FS=y
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+# CONFIG_NLS is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_FRAME_WARN=1024
+# CONFIG_MAGIC_SYSRQ is not set
+# CONFIG_UNUSED_SYMBOLS is not set
+# CONFIG_DEBUG_FS is not set
+# CONFIG_HEADERS_CHECK is not set
+# CONFIG_DEBUG_KERNEL is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
+# CONFIG_SAMPLES is not set
+# CONFIG_FULLDEBUG is not set
+# CONFIG_HIGHPROFILE is not set
+# CONFIG_BOOTPARAM is not set
+# CONFIG_NO_KERNEL_MSG is not set
+# CONFIG_BDM_DISABLE is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+# CONFIG_CRYPTO is not set
+
+#
+# Library routines
+#
+# CONFIG_GENERIC_FIND_FIRST_BIT is not set
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_ITU_T is not set
+# CONFIG_CRC32 is not set
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_DMA=y
--- /dev/null
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.26-rc1
+#
+CONFIG_M68K=y
+# CONFIG_MMU is not set
+# CONFIG_FPU is not set
+CONFIG_ZONE_DMA=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_GENERIC_FIND_NEXT_BIT=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_TIME=y
+CONFIG_TIME_LOW_RES=y
+CONFIG_NO_IOPORT=y
+CONFIG_ARCH_SUPPORTS_AOUT=y
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+# CONFIG_SYSVIPC is not set
+# CONFIG_POSIX_MQUEUE is not set
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_AUDIT is not set
+# CONFIG_IKCONFIG is not set
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+# CONFIG_GROUP_SCHED is not set
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
+# CONFIG_RELAY is not set
+# CONFIG_NAMESPACES is not set
+# CONFIG_BLK_DEV_INITRD is not set
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_SYSCTL=y
+CONFIG_EMBEDDED=y
+# CONFIG_UID16 is not set
+# CONFIG_SYSCTL_SYSCALL is not set
+# CONFIG_KALLSYMS is not set
+# CONFIG_HOTPLUG is not set
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_BASE_FULL=y
+# CONFIG_FUTEX is not set
+# CONFIG_EPOLL is not set
+# CONFIG_SIGNALFD is not set
+# CONFIG_TIMERFD is not set
+# CONFIG_EVENTFD is not set
+# CONFIG_VM_EVENT_COUNTERS is not set
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
+# CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
+# CONFIG_HAVE_OPROFILE is not set
+# CONFIG_HAVE_KPROBES is not set
+# CONFIG_HAVE_KRETPROBES is not set
+# CONFIG_HAVE_DMA_ATTRS is not set
+CONFIG_SLABINFO=y
+CONFIG_TINY_SHMEM=y
+CONFIG_BASE_SMALL=0
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_MODULE_FORCE_UNLOAD is not set
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+# CONFIG_KMOD is not set
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+# CONFIG_IOSCHED_AS is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+# CONFIG_DEFAULT_AS is not set
+# CONFIG_DEFAULT_DEADLINE is not set
+# CONFIG_DEFAULT_CFQ is not set
+CONFIG_DEFAULT_NOOP=y
+CONFIG_DEFAULT_IOSCHED="noop"
+CONFIG_CLASSIC_RCU=y
+
+#
+# Processor type and features
+#
+# CONFIG_M68328 is not set
+# CONFIG_M68EZ328 is not set
+# CONFIG_M68VZ328 is not set
+# CONFIG_M68360 is not set
+# CONFIG_M5206 is not set
+# CONFIG_M5206e is not set
+# CONFIG_M520x is not set
+# CONFIG_M523x is not set
+# CONFIG_M5249 is not set
+# CONFIG_M5271 is not set
+# CONFIG_M5272 is not set
+CONFIG_M5275=y
+# CONFIG_M528x is not set
+# CONFIG_M5307 is not set
+# CONFIG_M532x is not set
+# CONFIG_M5407 is not set
+CONFIG_M527x=y
+CONFIG_COLDFIRE=y
+CONFIG_CLOCK_SET=y
+CONFIG_CLOCK_FREQ=150000000
+CONFIG_CLOCK_DIV=2
+
+#
+# Platform
+#
+CONFIG_M5275EVB=y
+CONFIG_FREESCALE=y
+# CONFIG_4KSTACKS is not set
+CONFIG_HZ=100
+
+#
+# RAM configuration
+#
+CONFIG_RAMBASE=0x00000000
+CONFIG_RAMSIZE=0x00000000
+CONFIG_VECTORBASE=0x00000000
+CONFIG_KERNELBASE=0x00020000
+CONFIG_RAMAUTOBIT=y
+# CONFIG_RAM8BIT is not set
+# CONFIG_RAM16BIT is not set
+# CONFIG_RAM32BIT is not set
+
+#
+# ROM configuration
+#
+# CONFIG_ROM is not set
+CONFIG_RAMKERNEL=y
+# CONFIG_ROMKERNEL is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_PAGEFLAGS_EXTENDED=y
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=1
+CONFIG_VIRT_TO_BUS=y
+CONFIG_ISA_DMA_API=y
+
+#
+# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
+#
+# CONFIG_PCI is not set
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_FLAT=y
+# CONFIG_BINFMT_ZFLAT is not set
+# CONFIG_BINFMT_SHARED_FLAT is not set
+# CONFIG_BINFMT_AOUT is not set
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Power management options
+#
+# CONFIG_PM is not set
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+# CONFIG_PACKET_MMAP is not set
+CONFIG_UNIX=y
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+# CONFIG_IP_PNP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_CAN is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_CONNECTOR is not set
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_CONCAT is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+# CONFIG_MTD_CMDLINE_PARTS is not set
+# CONFIG_MTD_AR7_PARTS is not set
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+# CONFIG_MTD_CFI is not set
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+CONFIG_MTD_RAM=y
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_UCLINUX=y
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+# CONFIG_MTD_NAND is not set
+# CONFIG_MTD_ONENAND is not set
+
+#
+# UBI - Unsorted block images
+#
+# CONFIG_MTD_UBI is not set
+# CONFIG_PARPORT is not set
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_DEV_COW_COMMON is not set
+# CONFIG_BLK_DEV_LOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+# CONFIG_BLK_DEV_XIP is not set
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+# CONFIG_MISC_DEVICES is not set
+CONFIG_HAVE_IDE=y
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_SCSI is not set
+# CONFIG_SCSI_DMA is not set
+# CONFIG_SCSI_NETLINK is not set
+# CONFIG_MD is not set
+CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_PHYLIB is not set
+CONFIG_NET_ETHERNET=y
+# CONFIG_MII is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_B44 is not set
+CONFIG_FEC=y
+CONFIG_FEC2=y
+# CONFIG_NETDEV_1000 is not set
+# CONFIG_NETDEV_10000 is not set
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+# CONFIG_IWLWIFI is not set
+# CONFIG_IWLWIFI_LEDS is not set
+# CONFIG_WAN is not set
+CONFIG_PPP=y
+# CONFIG_PPP_MULTILINK is not set
+# CONFIG_PPP_FILTER is not set
+# CONFIG_PPP_ASYNC is not set
+# CONFIG_PPP_SYNC_TTY is not set
+# CONFIG_PPP_DEFLATE is not set
+# CONFIG_PPP_BSDCOMP is not set
+# CONFIG_PPP_MPPE is not set
+# CONFIG_PPPOE is not set
+# CONFIG_PPPOL2TP is not set
+# CONFIG_SLIP is not set
+CONFIG_SLHC=y
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+# CONFIG_INPUT is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+# CONFIG_VT is not set
+# CONFIG_DEVKMEM is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_COLDFIRE is not set
+CONFIG_SERIAL_MCF=y
+CONFIG_SERIAL_MCF_BAUDRATE=19200
+CONFIG_SERIAL_MCF_CONSOLE=y
+# CONFIG_UNIX98_PTYS is not set
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+# CONFIG_IPMI_HANDLER is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_GEN_RTC is not set
+# CONFIG_R3964 is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+# CONFIG_I2C is not set
+# CONFIG_SPI is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_HWMON is not set
+# CONFIG_THERMAL is not set
+# CONFIG_WATCHDOG is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+# CONFIG_HTC_PASIC3 is not set
+
+#
+# Multimedia devices
+#
+
+#
+# Multimedia core support
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+
+#
+# Multimedia drivers
+#
+CONFIG_DAB=y
+
+#
+# Graphics support
+#
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_FB is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_MMC is not set
+# CONFIG_MEMSTICK is not set
+# CONFIG_NEW_LEDS is not set
+# CONFIG_ACCESSIBILITY is not set
+# CONFIG_RTC_CLASS is not set
+# CONFIG_UIO is not set
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_EXT4DEV_FS is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_INOTIFY is not set
+# CONFIG_QUOTA is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+# CONFIG_TMPFS is not set
+# CONFIG_HUGETLB_PAGE is not set
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_JFFS2_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+CONFIG_ROMFS_FS=y
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+CONFIG_NETWORK_FILESYSTEMS=y
+# CONFIG_NFS_FS is not set
+# CONFIG_NFSD is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+# CONFIG_NLS is not set
+# CONFIG_DLM is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_FRAME_WARN=1024
+# CONFIG_MAGIC_SYSRQ is not set
+# CONFIG_UNUSED_SYMBOLS is not set
+# CONFIG_DEBUG_FS is not set
+# CONFIG_HEADERS_CHECK is not set
+# CONFIG_DEBUG_KERNEL is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
+# CONFIG_SAMPLES is not set
+# CONFIG_FULLDEBUG is not set
+# CONFIG_HIGHPROFILE is not set
+# CONFIG_BOOTPARAM is not set
+# CONFIG_NO_KERNEL_MSG is not set
+# CONFIG_BDM_DISABLE is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+# CONFIG_CRYPTO is not set
+
+#
+# Library routines
+#
+# CONFIG_GENERIC_FIND_FIRST_BIT is not set
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_ITU_T is not set
+# CONFIG_CRC32 is not set
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_DMA=y
--- /dev/null
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.26-rc1
+#
+CONFIG_M68K=y
+# CONFIG_MMU is not set
+# CONFIG_FPU is not set
+CONFIG_ZONE_DMA=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_GENERIC_FIND_NEXT_BIT=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_TIME=y
+CONFIG_TIME_LOW_RES=y
+CONFIG_NO_IOPORT=y
+CONFIG_ARCH_SUPPORTS_AOUT=y
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+# CONFIG_SYSVIPC is not set
+# CONFIG_POSIX_MQUEUE is not set
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_AUDIT is not set
+# CONFIG_IKCONFIG is not set
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+# CONFIG_GROUP_SCHED is not set
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
+# CONFIG_RELAY is not set
+# CONFIG_NAMESPACES is not set
+# CONFIG_BLK_DEV_INITRD is not set
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_SYSCTL=y
+CONFIG_EMBEDDED=y
+# CONFIG_UID16 is not set
+# CONFIG_SYSCTL_SYSCALL is not set
+# CONFIG_KALLSYMS is not set
+# CONFIG_HOTPLUG is not set
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_BASE_FULL=y
+# CONFIG_FUTEX is not set
+# CONFIG_EPOLL is not set
+# CONFIG_SIGNALFD is not set
+# CONFIG_TIMERFD is not set
+# CONFIG_EVENTFD is not set
+# CONFIG_VM_EVENT_COUNTERS is not set
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
+# CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
+# CONFIG_HAVE_OPROFILE is not set
+# CONFIG_HAVE_KPROBES is not set
+# CONFIG_HAVE_KRETPROBES is not set
+# CONFIG_HAVE_DMA_ATTRS is not set
+CONFIG_SLABINFO=y
+CONFIG_TINY_SHMEM=y
+CONFIG_BASE_SMALL=0
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_MODULE_FORCE_UNLOAD is not set
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+# CONFIG_KMOD is not set
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+# CONFIG_IOSCHED_AS is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+# CONFIG_DEFAULT_AS is not set
+# CONFIG_DEFAULT_DEADLINE is not set
+# CONFIG_DEFAULT_CFQ is not set
+CONFIG_DEFAULT_NOOP=y
+CONFIG_DEFAULT_IOSCHED="noop"
+CONFIG_CLASSIC_RCU=y
+
+#
+# Processor type and features
+#
+# CONFIG_M68328 is not set
+# CONFIG_M68EZ328 is not set
+# CONFIG_M68VZ328 is not set
+# CONFIG_M68360 is not set
+# CONFIG_M5206 is not set
+# CONFIG_M5206e is not set
+# CONFIG_M520x is not set
+# CONFIG_M523x is not set
+# CONFIG_M5249 is not set
+# CONFIG_M5271 is not set
+# CONFIG_M5272 is not set
+# CONFIG_M5275 is not set
+# CONFIG_M528x is not set
+CONFIG_M5307=y
+# CONFIG_M532x is not set
+# CONFIG_M5407 is not set
+CONFIG_COLDFIRE=y
+CONFIG_CLOCK_SET=y
+CONFIG_CLOCK_FREQ=90000000
+CONFIG_CLOCK_DIV=2
+# CONFIG_OLDMASK is not set
+
+#
+# Platform
+#
+# CONFIG_ARN5307 is not set
+CONFIG_M5307C3=y
+# CONFIG_eLIA is not set
+# CONFIG_SECUREEDGEMP3 is not set
+# CONFIG_CLEOPATRA is not set
+# CONFIG_NETtel is not set
+CONFIG_FREESCALE=y
+# CONFIG_4KSTACKS is not set
+CONFIG_HZ=100
+
+#
+# RAM configuration
+#
+CONFIG_RAMBASE=0x00000000
+CONFIG_RAMSIZE=0x00800000
+CONFIG_VECTORBASE=0x00000000
+CONFIG_KERNELBASE=0x00020000
+CONFIG_RAMAUTOBIT=y
+# CONFIG_RAM8BIT is not set
+# CONFIG_RAM16BIT is not set
+# CONFIG_RAM32BIT is not set
+
+#
+# ROM configuration
+#
+# CONFIG_ROM is not set
+CONFIG_RAMKERNEL=y
+# CONFIG_ROMKERNEL is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_PAGEFLAGS_EXTENDED=y
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=1
+CONFIG_VIRT_TO_BUS=y
+CONFIG_ISA_DMA_API=y
+
+#
+# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
+#
+# CONFIG_PCI is not set
+# CONFIG_COMEMPCI is not set
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_FLAT=y
+# CONFIG_BINFMT_ZFLAT is not set
+# CONFIG_BINFMT_SHARED_FLAT is not set
+# CONFIG_BINFMT_AOUT is not set
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Power management options
+#
+# CONFIG_PM is not set
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+# CONFIG_PACKET_MMAP is not set
+CONFIG_UNIX=y
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+# CONFIG_IP_PNP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_CAN is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_CONNECTOR is not set
+# CONFIG_MTD is not set
+# CONFIG_PARPORT is not set
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_DEV_COW_COMMON is not set
+# CONFIG_BLK_DEV_LOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+# CONFIG_BLK_DEV_XIP is not set
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+# CONFIG_MISC_DEVICES is not set
+CONFIG_HAVE_IDE=y
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_SCSI is not set
+# CONFIG_SCSI_DMA is not set
+# CONFIG_SCSI_NETLINK is not set
+# CONFIG_MD is not set
+CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_PHYLIB is not set
+CONFIG_NET_ETHERNET=y
+# CONFIG_MII is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_B44 is not set
+# CONFIG_NETDEV_1000 is not set
+# CONFIG_NETDEV_10000 is not set
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+# CONFIG_IWLWIFI is not set
+# CONFIG_IWLWIFI_LEDS is not set
+# CONFIG_WAN is not set
+CONFIG_PPP=y
+# CONFIG_PPP_MULTILINK is not set
+# CONFIG_PPP_FILTER is not set
+# CONFIG_PPP_ASYNC is not set
+# CONFIG_PPP_SYNC_TTY is not set
+# CONFIG_PPP_DEFLATE is not set
+# CONFIG_PPP_BSDCOMP is not set
+# CONFIG_PPP_MPPE is not set
+# CONFIG_PPPOE is not set
+# CONFIG_PPPOL2TP is not set
+CONFIG_SLIP=y
+CONFIG_SLIP_COMPRESSED=y
+CONFIG_SLHC=y
+# CONFIG_SLIP_SMART is not set
+# CONFIG_SLIP_MODE_SLIP6 is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+CONFIG_INPUT=y
+# CONFIG_INPUT_FF_MEMLESS is not set
+# CONFIG_INPUT_POLLDEV is not set
+
+#
+# Userland interfaces
+#
+# CONFIG_INPUT_MOUSEDEV is not set
+# CONFIG_INPUT_JOYDEV is not set
+# CONFIG_INPUT_EVDEV is not set
+# CONFIG_INPUT_EVBUG is not set
+
+#
+# Input Device Drivers
+#
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
+# CONFIG_INPUT_TOUCHSCREEN is not set
+# CONFIG_INPUT_MISC is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+# CONFIG_VT is not set
+# CONFIG_DEVKMEM is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_COLDFIRE is not set
+CONFIG_SERIAL_MCF=y
+CONFIG_SERIAL_MCF_BAUDRATE=19200
+CONFIG_SERIAL_MCF_CONSOLE=y
+CONFIG_UNIX98_PTYS=y
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+# CONFIG_IPMI_HANDLER is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_GEN_RTC is not set
+# CONFIG_R3964 is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+# CONFIG_I2C is not set
+# CONFIG_SPI is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_HWMON is not set
+# CONFIG_THERMAL is not set
+# CONFIG_WATCHDOG is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+# CONFIG_HTC_PASIC3 is not set
+
+#
+# Multimedia devices
+#
+
+#
+# Multimedia core support
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+
+#
+# Multimedia drivers
+#
+CONFIG_DAB=y
+
+#
+# Graphics support
+#
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_FB is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+# CONFIG_HID_SUPPORT is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_MMC is not set
+# CONFIG_MEMSTICK is not set
+# CONFIG_NEW_LEDS is not set
+# CONFIG_ACCESSIBILITY is not set
+# CONFIG_RTC_CLASS is not set
+# CONFIG_UIO is not set
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_EXT4DEV_FS is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_INOTIFY is not set
+# CONFIG_QUOTA is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+# CONFIG_TMPFS is not set
+# CONFIG_HUGETLB_PAGE is not set
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+CONFIG_ROMFS_FS=y
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+# CONFIG_NETWORK_FILESYSTEMS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+# CONFIG_NLS is not set
+# CONFIG_DLM is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_FRAME_WARN=1024
+# CONFIG_MAGIC_SYSRQ is not set
+# CONFIG_UNUSED_SYMBOLS is not set
+# CONFIG_DEBUG_FS is not set
+# CONFIG_HEADERS_CHECK is not set
+# CONFIG_DEBUG_KERNEL is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
+# CONFIG_SAMPLES is not set
+CONFIG_FULLDEBUG=y
+# CONFIG_HIGHPROFILE is not set
+# CONFIG_BOOTPARAM is not set
+# CONFIG_NO_KERNEL_MSG is not set
+# CONFIG_BDM_DISABLE is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+# CONFIG_CRYPTO is not set
+
+#
+# Library routines
+#
+# CONFIG_GENERIC_FIND_FIRST_BIT is not set
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_ITU_T is not set
+# CONFIG_CRC32 is not set
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_DMA=y
--- /dev/null
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.26-rc1
+# Wed May 7 10:25:16 2008
+#
+CONFIG_M68K=y
+# CONFIG_MMU is not set
+# CONFIG_FPU is not set
+CONFIG_ZONE_DMA=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_GENERIC_FIND_NEXT_BIT=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_TIME=y
+CONFIG_TIME_LOW_RES=y
+CONFIG_NO_IOPORT=y
+CONFIG_ARCH_SUPPORTS_AOUT=y
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+# CONFIG_SYSVIPC is not set
+# CONFIG_POSIX_MQUEUE is not set
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_AUDIT is not set
+# CONFIG_IKCONFIG is not set
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+# CONFIG_GROUP_SCHED is not set
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
+# CONFIG_RELAY is not set
+# CONFIG_NAMESPACES is not set
+# CONFIG_BLK_DEV_INITRD is not set
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_SYSCTL=y
+CONFIG_EMBEDDED=y
+# CONFIG_UID16 is not set
+# CONFIG_SYSCTL_SYSCALL is not set
+# CONFIG_KALLSYMS is not set
+# CONFIG_HOTPLUG is not set
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_BASE_FULL=y
+# CONFIG_FUTEX is not set
+# CONFIG_EPOLL is not set
+# CONFIG_SIGNALFD is not set
+# CONFIG_TIMERFD is not set
+# CONFIG_EVENTFD is not set
+# CONFIG_VM_EVENT_COUNTERS is not set
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
+# CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
+# CONFIG_HAVE_OPROFILE is not set
+# CONFIG_HAVE_KPROBES is not set
+# CONFIG_HAVE_KRETPROBES is not set
+# CONFIG_HAVE_DMA_ATTRS is not set
+CONFIG_SLABINFO=y
+CONFIG_TINY_SHMEM=y
+CONFIG_BASE_SMALL=0
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_MODULE_FORCE_UNLOAD is not set
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+# CONFIG_KMOD is not set
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+# CONFIG_IOSCHED_AS is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+# CONFIG_DEFAULT_AS is not set
+# CONFIG_DEFAULT_DEADLINE is not set
+# CONFIG_DEFAULT_CFQ is not set
+CONFIG_DEFAULT_NOOP=y
+CONFIG_DEFAULT_IOSCHED="noop"
+CONFIG_CLASSIC_RCU=y
+
+#
+# Processor type and features
+#
+# CONFIG_M68328 is not set
+# CONFIG_M68EZ328 is not set
+# CONFIG_M68VZ328 is not set
+# CONFIG_M68360 is not set
+# CONFIG_M5206 is not set
+# CONFIG_M5206e is not set
+# CONFIG_M520x is not set
+# CONFIG_M523x is not set
+# CONFIG_M5249 is not set
+# CONFIG_M5271 is not set
+# CONFIG_M5272 is not set
+# CONFIG_M5275 is not set
+# CONFIG_M528x is not set
+# CONFIG_M5307 is not set
+# CONFIG_M532x is not set
+CONFIG_M5407=y
+CONFIG_COLDFIRE=y
+CONFIG_CLOCK_SET=y
+CONFIG_CLOCK_FREQ=50000000
+CONFIG_CLOCK_DIV=1
+
+#
+# Platform
+#
+CONFIG_M5407C3=y
+# CONFIG_CLEOPATRA is not set
+CONFIG_FREESCALE=y
+CONFIG_4KSTACKS=y
+CONFIG_HZ=100
+
+#
+# RAM configuration
+#
+CONFIG_RAMBASE=0x00000000
+CONFIG_RAMSIZE=0x00000000
+CONFIG_VECTORBASE=0x00000000
+CONFIG_KERNELBASE=0x00020000
+CONFIG_RAMAUTOBIT=y
+# CONFIG_RAM8BIT is not set
+# CONFIG_RAM16BIT is not set
+# CONFIG_RAM32BIT is not set
+
+#
+# ROM configuration
+#
+# CONFIG_ROM is not set
+CONFIG_RAMKERNEL=y
+# CONFIG_ROMKERNEL is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_PAGEFLAGS_EXTENDED=y
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=1
+CONFIG_VIRT_TO_BUS=y
+CONFIG_ISA_DMA_API=y
+
+#
+# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
+#
+# CONFIG_PCI is not set
+# CONFIG_COMEMPCI is not set
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_FLAT=y
+# CONFIG_BINFMT_ZFLAT is not set
+# CONFIG_BINFMT_SHARED_FLAT is not set
+# CONFIG_BINFMT_AOUT is not set
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Power management options
+#
+# CONFIG_PM is not set
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+# CONFIG_PACKET_MMAP is not set
+CONFIG_UNIX=y
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+# CONFIG_IP_PNP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_CAN is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_CONNECTOR is not set
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_CONCAT is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+# CONFIG_MTD_CMDLINE_PARTS is not set
+# CONFIG_MTD_AR7_PARTS is not set
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+# CONFIG_MTD_CFI is not set
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+CONFIG_MTD_RAM=y
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_UCLINUX=y
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+# CONFIG_MTD_NAND is not set
+# CONFIG_MTD_ONENAND is not set
+
+#
+# UBI - Unsorted block images
+#
+# CONFIG_MTD_UBI is not set
+# CONFIG_PARPORT is not set
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_DEV_COW_COMMON is not set
+# CONFIG_BLK_DEV_LOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+# CONFIG_BLK_DEV_XIP is not set
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+# CONFIG_MISC_DEVICES is not set
+CONFIG_HAVE_IDE=y
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_SCSI is not set
+# CONFIG_SCSI_DMA is not set
+# CONFIG_SCSI_NETLINK is not set
+# CONFIG_MD is not set
+CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_PHYLIB is not set
+CONFIG_NET_ETHERNET=y
+# CONFIG_MII is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_B44 is not set
+# CONFIG_NETDEV_1000 is not set
+# CONFIG_NETDEV_10000 is not set
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+# CONFIG_IWLWIFI is not set
+# CONFIG_IWLWIFI_LEDS is not set
+# CONFIG_WAN is not set
+CONFIG_PPP=y
+# CONFIG_PPP_MULTILINK is not set
+# CONFIG_PPP_FILTER is not set
+# CONFIG_PPP_ASYNC is not set
+# CONFIG_PPP_SYNC_TTY is not set
+# CONFIG_PPP_DEFLATE is not set
+# CONFIG_PPP_BSDCOMP is not set
+# CONFIG_PPP_MPPE is not set
+# CONFIG_PPPOE is not set
+# CONFIG_PPPOL2TP is not set
+# CONFIG_SLIP is not set
+CONFIG_SLHC=y
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+CONFIG_INPUT=y
+# CONFIG_INPUT_FF_MEMLESS is not set
+# CONFIG_INPUT_POLLDEV is not set
+
+#
+# Userland interfaces
+#
+# CONFIG_INPUT_MOUSEDEV is not set
+# CONFIG_INPUT_JOYDEV is not set
+# CONFIG_INPUT_EVDEV is not set
+# CONFIG_INPUT_EVBUG is not set
+
+#
+# Input Device Drivers
+#
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
+# CONFIG_INPUT_TOUCHSCREEN is not set
+# CONFIG_INPUT_MISC is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+# CONFIG_VT is not set
+# CONFIG_DEVKMEM is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_COLDFIRE is not set
+CONFIG_SERIAL_MCF=y
+CONFIG_SERIAL_MCF_BAUDRATE=19200
+CONFIG_SERIAL_MCF_CONSOLE=y
+# CONFIG_UNIX98_PTYS is not set
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+# CONFIG_IPMI_HANDLER is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_GEN_RTC is not set
+# CONFIG_R3964 is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+# CONFIG_I2C is not set
+# CONFIG_SPI is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_HWMON is not set
+# CONFIG_THERMAL is not set
+# CONFIG_WATCHDOG is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+# CONFIG_HTC_PASIC3 is not set
+
+#
+# Multimedia devices
+#
+
+#
+# Multimedia core support
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+
+#
+# Multimedia drivers
+#
+CONFIG_DAB=y
+
+#
+# Graphics support
+#
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_FB is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+# CONFIG_HID_SUPPORT is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_MMC is not set
+# CONFIG_MEMSTICK is not set
+# CONFIG_NEW_LEDS is not set
+# CONFIG_ACCESSIBILITY is not set
+# CONFIG_RTC_CLASS is not set
+# CONFIG_UIO is not set
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_EXT4DEV_FS is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_INOTIFY is not set
+# CONFIG_QUOTA is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+# CONFIG_TMPFS is not set
+# CONFIG_HUGETLB_PAGE is not set
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_JFFS2_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+CONFIG_ROMFS_FS=y
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+# CONFIG_NETWORK_FILESYSTEMS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+# CONFIG_NLS is not set
+# CONFIG_DLM is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_FRAME_WARN=1024
+# CONFIG_MAGIC_SYSRQ is not set
+# CONFIG_UNUSED_SYMBOLS is not set
+# CONFIG_DEBUG_FS is not set
+# CONFIG_HEADERS_CHECK is not set
+# CONFIG_DEBUG_KERNEL is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
+# CONFIG_SAMPLES is not set
+# CONFIG_FULLDEBUG is not set
+# CONFIG_HIGHPROFILE is not set
+# CONFIG_BOOTPARAM is not set
+# CONFIG_NO_KERNEL_MSG is not set
+# CONFIG_BDM_DISABLE is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+# CONFIG_CRYPTO is not set
+
+#
+# Library routines
+#
+# CONFIG_GENERIC_FIND_FIRST_BIT is not set
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_ITU_T is not set
+# CONFIG_CRC32 is not set
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_DMA=y
#include <linux/interrupt.h>
#include <linux/fb.h>
#include <linux/module.h>
+#include <linux/mm.h>
#include <linux/console.h>
#include <linux/errno.h>
#include <linux/string.h>
return -1;
}
+#ifndef CONFIG_GENERIC_CLOCKEVENTS
/*
* timer_interrupt() needs to keep up the real-time clock,
* as well as call the "do_timer()" routine every clocktick
*/
irqreturn_t arch_timer_interrupt(int irq, void *dummy)
{
- /* last time the cmos clock got updated */
- static long last_rtc_update=0;
if (current->pid)
profile_tick(CPU_PROFILING);
do_timer(1);
- /*
- * If we have an externally synchronized Linux clock, then update
- * CMOS clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
- * called as close as possible to 500 ms before the new second starts.
- */
- if (ntp_synced() &&
- xtime.tv_sec > last_rtc_update + 660 &&
- (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
- (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
- if (set_rtc_mmss(xtime.tv_sec) == 0)
- last_rtc_update = xtime.tv_sec;
- else
- last_rtc_update = xtime.tv_sec - 600; /* do it again in 60 s */
- }
-
write_sequnlock(&xtime_lock);
#ifndef CONFIG_SMP
#endif
return(IRQ_HANDLED);
}
+#endif
-void time_init(void)
+static unsigned long read_rtc_mmss(void)
{
unsigned int year, mon, day, hour, min, sec;
if ((year += 1900) < 1970)
year += 100;
- xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
- xtime.tv_nsec = 0;
- wall_to_monotonic.tv_sec = -xtime.tv_sec;
- hw_timer_init();
+ return mktime(year, mon, day, hour, min, sec);;
+}
+
+unsigned long read_persistent_clock(void)
+{
+ return read_rtc_mmss();
}
+int update_persistent_clock(struct timespec now)
+{
+ return set_rtc_mmss(now.tv_sec);
+}
+
+void time_init(void)
+{
+ hw_timer_init();
+}
force_sig(SIGSEGV, current);
}
+static void print_this_address(unsigned long addr, int i)
+{
+#ifdef CONFIG_KALLSYMS
+ printk(KERN_EMERG " [%08lx] ", addr);
+ print_symbol(KERN_CONT "%s\n", addr);
+#else
+ if (i % 5)
+ printk(KERN_CONT " [%08lx] ", addr);
+ else
+ printk(KERN_CONT "\n" KERN_EMERG " [%08lx] ", addr);
+ i++;
+#endif
+}
+
int kstack_depth_to_print = 48;
static void __show_stack(struct task_struct *task, unsigned long *stack)
{
unsigned long *endstack, addr;
+#ifdef CONFIG_FRAME_POINTER
unsigned long *last_stack;
+#endif
int i;
if (!stack)
printk(" %08lx", *(stack + i));
}
printk("\n");
+ i = 0;
#ifdef CONFIG_FRAME_POINTER
printk(KERN_EMERG "Call Trace:\n");
while (stack <= endstack && stack > last_stack) {
addr = *(stack + 1);
- printk(KERN_EMERG " [%08lx] ", addr);
- print_symbol(KERN_CONT "%s\n", addr);
+ print_this_address(addr, i);
+ i++;
last_stack = stack;
stack = (unsigned long *)*stack;
}
printk("\n");
#else
- printk(KERN_EMERG "CONFIG_FRAME_POINTER disabled, no symbolic call trace\n");
+ printk(KERN_EMERG "Call Trace with CONFIG_FRAME_POINTER disabled:\n");
+ while (stack <= endstack) {
+ addr = *stack++;
+ /*
+ * If the address is either in the text segment of the kernel,
+ * or in a region which is occupied by a module then it *may*
+ * be the address of a calling routine; if so, print it so that
+ * someone tracing down the cause of the crash will be able to
+ * figure out the call path that was taken.
+ */
+ if (__kernel_text_address(addr)) {
+ print_this_address(addr, i);
+ i++;
+ }
+ }
+ printk(KERN_CONT "\n");
#endif
}
.text : {
_text = .;
_stext = . ;
+ HEAD_TEXT
TEXT_TEXT
SCHED_TEXT
LOCK_TEXT
obj-$(CONFIG_M5206) += timers.o
obj-$(CONFIG_M5206e) += timers.o
obj-$(CONFIG_M520x) += pit.o
-obj-$(CONFIG_M523x) += pit.o
+obj-$(CONFIG_M523x) += pit.o dma_timer.o
obj-$(CONFIG_M5249) += timers.o
obj-$(CONFIG_M527x) += pit.o
obj-$(CONFIG_M5272) += timers.o
--- /dev/null
+/*
+ * dma_timer.c -- Freescale ColdFire DMA Timer.
+ *
+ * Copyright (C) 2007, Benedikt Spranger <b.spranger@linutronix.de>
+ * Copyright (C) 2008. Sebastian Siewior, Linutronix
+ *
+ */
+
+#include <linux/clocksource.h>
+#include <linux/io.h>
+
+#include <asm/machdep.h>
+#include <asm/coldfire.h>
+#include <asm/mcfpit.h>
+#include <asm/mcfsim.h>
+
+#define DMA_TIMER_0 (0x00)
+#define DMA_TIMER_1 (0x40)
+#define DMA_TIMER_2 (0x80)
+#define DMA_TIMER_3 (0xc0)
+
+#define DTMR0 (MCF_IPSBAR + DMA_TIMER_0 + 0x400)
+#define DTXMR0 (MCF_IPSBAR + DMA_TIMER_0 + 0x402)
+#define DTER0 (MCF_IPSBAR + DMA_TIMER_0 + 0x403)
+#define DTRR0 (MCF_IPSBAR + DMA_TIMER_0 + 0x404)
+#define DTCR0 (MCF_IPSBAR + DMA_TIMER_0 + 0x408)
+#define DTCN0 (MCF_IPSBAR + DMA_TIMER_0 + 0x40c)
+
+#define DMA_FREQ ((MCF_CLK / 2) / 16)
+
+/* DTMR */
+#define DMA_DTMR_RESTART (1 << 3)
+#define DMA_DTMR_CLK_DIV_1 (1 << 1)
+#define DMA_DTMR_CLK_DIV_16 (2 << 1)
+#define DMA_DTMR_ENABLE (1 << 0)
+
+static cycle_t cf_dt_get_cycles(void)
+{
+ return __raw_readl(DTCN0);
+}
+
+static struct clocksource clocksource_cf_dt = {
+ .name = "coldfire_dma_timer",
+ .rating = 200,
+ .read = cf_dt_get_cycles,
+ .mask = CLOCKSOURCE_MASK(32),
+ .shift = 20,
+ .flags = CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+static int __init init_cf_dt_clocksource(void)
+{
+ /*
+ * We setup DMA timer 0 in free run mode. This incrementing counter is
+ * used as a highly precious clock source. With MCF_CLOCK = 150 MHz we
+ * get a ~213 ns resolution and the 32bit register will overflow almost
+ * every 15 minutes.
+ */
+ __raw_writeb(0x00, DTXMR0);
+ __raw_writeb(0x00, DTER0);
+ __raw_writel(0x00000000, DTRR0);
+ __raw_writew(DMA_DTMR_CLK_DIV_16 | DMA_DTMR_ENABLE, DTMR0);
+ clocksource_cf_dt.mult = clocksource_hz2mult(DMA_FREQ,
+ clocksource_cf_dt.shift);
+ return clocksource_register(&clocksource_cf_dt);
+}
+
+arch_initcall(init_cf_dt_clocksource);
+
+#define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */
+#define CYC2NS_SCALE ((1000000 << CYC2NS_SCALE_FACTOR) / (DMA_FREQ / 1000))
+
+static unsigned long long cycles2ns(unsigned long cycl)
+{
+ return (unsigned long long) ((unsigned long long)cycl *
+ CYC2NS_SCALE) >> CYC2NS_SCALE_FACTOR;
+}
+
+unsigned long long sched_clock(void)
+{
+ unsigned long cycl = __raw_readl(DTCN0);
+
+ return cycles2ns(cycl);
+}
#include <linux/sys.h>
#include <linux/linkage.h>
+#include <linux/init.h>
#include <asm/asm-offsets.h>
#include <asm/coldfire.h>
#include <asm/mcfcache.h>
/*****************************************************************************/
-.text
+__HEAD
/*
* This is the codes first entry point. This is where it all
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
-#include <linux/clocksource.h>
+#include <linux/clockchips.h>
#include <asm/machdep.h>
#include <asm/io.h>
#include <asm/coldfire.h>
#define FREQ ((MCF_CLK / 2) / 64)
#define TA(a) (MCF_IPSBAR + MCFPIT_BASE1 + (a))
#define INTC0 (MCF_IPSBAR + MCFICM_INTC0)
+#define PIT_CYCLES_PER_JIFFY (FREQ / HZ)
-static u32 pit_cycles_per_jiffy;
static u32 pit_cnt;
+/*
+ * Initialize the PIT timer.
+ *
+ * This is also called after resume to bring the PIT into operation again.
+ */
+
+static void init_cf_pit_timer(enum clock_event_mode mode,
+ struct clock_event_device *evt)
+{
+ switch (mode) {
+ case CLOCK_EVT_MODE_PERIODIC:
+
+ __raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR));
+ __raw_writew(PIT_CYCLES_PER_JIFFY, TA(MCFPIT_PMR));
+ __raw_writew(MCFPIT_PCSR_EN | MCFPIT_PCSR_PIE | \
+ MCFPIT_PCSR_OVW | MCFPIT_PCSR_RLD | \
+ MCFPIT_PCSR_CLK64, TA(MCFPIT_PCSR));
+ break;
+
+ case CLOCK_EVT_MODE_SHUTDOWN:
+ case CLOCK_EVT_MODE_UNUSED:
+
+ __raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR));
+ break;
+
+ case CLOCK_EVT_MODE_ONESHOT:
+
+ __raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR));
+ __raw_writew(MCFPIT_PCSR_EN | MCFPIT_PCSR_PIE | \
+ MCFPIT_PCSR_OVW | MCFPIT_PCSR_CLK64, \
+ TA(MCFPIT_PCSR));
+ break;
+
+ case CLOCK_EVT_MODE_RESUME:
+ /* Nothing to do here */
+ break;
+ }
+}
+
+/*
+ * Program the next event in oneshot mode
+ *
+ * Delta is given in PIT ticks
+ */
+static int cf_pit_next_event(unsigned long delta,
+ struct clock_event_device *evt)
+{
+ __raw_writew(delta, TA(MCFPIT_PMR));
+ return 0;
+}
+
+struct clock_event_device cf_pit_clockevent = {
+ .name = "pit",
+ .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
+ .set_mode = init_cf_pit_timer,
+ .set_next_event = cf_pit_next_event,
+ .shift = 32,
+ .irq = MCFINT_VECBASE + MCFINT_PIT1,
+};
+
+
+
/***************************************************************************/
static irqreturn_t pit_tick(int irq, void *dummy)
{
+ struct clock_event_device *evt = &cf_pit_clockevent;
u16 pcsr;
/* Reset the ColdFire timer */
pcsr = __raw_readw(TA(MCFPIT_PCSR));
__raw_writew(pcsr | MCFPIT_PCSR_PIF, TA(MCFPIT_PCSR));
- pit_cnt += pit_cycles_per_jiffy;
- return arch_timer_interrupt(irq, dummy);
+ pit_cnt += PIT_CYCLES_PER_JIFFY;
+ evt->event_handler(evt);
+ return IRQ_HANDLED;
}
/***************************************************************************/
cycles = pit_cnt;
local_irq_restore(flags);
- return cycles + pit_cycles_per_jiffy - pcntr;
+ return cycles + PIT_CYCLES_PER_JIFFY - pcntr;
}
/***************************************************************************/
static struct clocksource pit_clk = {
.name = "pit",
- .rating = 250,
+ .rating = 100,
.read = pit_read_clk,
.shift = 20,
.mask = CLOCKSOURCE_MASK(32),
{
u32 imr;
+ cf_pit_clockevent.cpumask = cpumask_of_cpu(smp_processor_id());
+ cf_pit_clockevent.mult = div_sc(FREQ, NSEC_PER_SEC, 32);
+ cf_pit_clockevent.max_delta_ns =
+ clockevent_delta2ns(0xFFFF, &cf_pit_clockevent);
+ cf_pit_clockevent.min_delta_ns =
+ clockevent_delta2ns(0x3f, &cf_pit_clockevent);
+ clockevents_register_device(&cf_pit_clockevent);
+
setup_irq(MCFINT_VECBASE + MCFINT_PIT1, &pit_irq);
__raw_writeb(ICR_INTRCONF, INTC0 + MCFINTC_ICR0 + MCFINT_PIT1);
imr &= ~MCFPIT_IMR_IBIT;
__raw_writel(imr, INTC0 + MCFPIT_IMR);
- /* Set up PIT timer 1 as poll clock */
- pit_cycles_per_jiffy = FREQ / HZ;
- __raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR));
- __raw_writew(pit_cycles_per_jiffy, TA(MCFPIT_PMR));
- __raw_writew(MCFPIT_PCSR_EN | MCFPIT_PCSR_PIE | MCFPIT_PCSR_OVW |
- MCFPIT_PCSR_RLD | MCFPIT_PCSR_CLK64, TA(MCFPIT_PCSR));
-
pit_clk.mult = clocksource_hz2mult(FREQ, pit_clk.shift);
clocksource_register(&pit_clk);
}
#include <linux/init.h>
#include <linux/pm.h>
-#include <linux/pm_legacy.h>
#include <linux/sysctl.h>
#include <linux/jiffies.h>
#include <linux/moduleloader.h>
#include <linux/elf.h>
+#include <linux/mm.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/fs.h>
int fd[2];
int error, res;
- error = do_pipe(fd);
+ error = do_pipe_flags(fd, 0);
if (error) {
res = error;
goto out;
* Copyright 2000 - 2001 Kanoj Sarcar (kanoj@sgi.com)
*/
#include <linux/init.h>
+#include <linux/mm.h>
#include <linux/mmzone.h>
#include <linux/kernel.h>
#include <linux/nodemask.h>
#define SLOT_PFNSHIFT (SLOT_SHIFT - PAGE_SHIFT)
#define PFN_NASIDSHFT (NASID_SHFT - PAGE_SHIFT)
-static struct bootmem_data __initdata plat_node_bdata[MAX_COMPACT_NODES];
-
struct node_data *__node_data[MAX_COMPACT_NODES];
EXPORT_SYMBOL(__node_data);
*/
__node_data[node] = __va(slot_freepfn << PAGE_SHIFT);
- NODE_DATA(node)->bdata = &plat_node_bdata[node];
+ NODE_DATA(node)->bdata = &bootmem_node_data[node];
NODE_DATA(node)->node_start_pfn = start_pfn;
NODE_DATA(node)->node_spanned_pages = end_pfn - start_pfn;
/* declare the sizes of the RAM zones (only use the normal zone) */
zones_size[ZONE_NORMAL] =
- (contig_page_data.bdata->node_low_pfn) -
- (contig_page_data.bdata->node_boot_start >> PAGE_SHIFT);
+ contig_page_data.bdata->node_low_pfn -
+ contig_page_data.bdata->node_min_pfn;
/* pass the memory from the bootmem allocator to the main allocator */
free_area_init(zones_size);
if (!mem_map)
BUG();
-#define START_PFN (contig_page_data.bdata->node_boot_start >> PAGE_SHIFT)
+#define START_PFN (contig_page_data.bdata->node_min_pfn)
#define MAX_LOW_PFN (contig_page_data.bdata->node_low_pfn)
max_mapnr = num_physpages = MAX_LOW_PFN - START_PFN;
int error;
lock_kernel();
- error = do_pipe(kstack_fildes);
+ error = do_pipe_flags(kstack_fildes, 0);
unlock_kernel();
return error;
}
#ifdef CONFIG_DISCONTIGMEM
struct node_map_data node_data[MAX_NUMNODES] __read_mostly;
-bootmem_data_t bmem_data[MAX_NUMNODES] __read_mostly;
unsigned char pfnnid_map[PFNNID_MAP_MAX] __read_mostly;
#endif
#ifdef CONFIG_DISCONTIGMEM
for (i = 0; i < MAX_PHYSMEM_RANGES; i++) {
memset(NODE_DATA(i), 0, sizeof(pg_data_t));
- NODE_DATA(i)->bdata = &bmem_data[i];
+ NODE_DATA(i)->bdata = &bootmem_node_data[i];
}
memset(pfnnid_map, 0xff, sizeof(pfnnid_map));
}
#endif
- free_area_init_node(i, NODE_DATA(i), zones_size,
+ free_area_init_node(i, zones_size,
pmem_ranges[i].start_pfn, NULL);
}
}
select HAVE_DYNAMIC_FTRACE
select HAVE_FTRACE
select HAVE_IDE
+ select HAVE_IOREMAP_PROT
select HAVE_KPROBES
select HAVE_ARCH_KGDB
select HAVE_KRETPROBES
config PPC_CLOCK
bool
default n
+ select HAVE_CLK
config PPC_LIB_RHEAP
bool
* Copyright (c) 2001 Patrick Mochel <mochel@osdl.org>
*/
+#include <linux/mm.h>
#include <asm/page.h>
/* References to section boundaries */
#include <linux/kernel.h>
#include <linux/vmalloc.h>
#include <linux/init.h>
+#include <linux/mm.h>
#include <asm/page.h>
#include <asm/code-patching.h>
#define KB (1024)
#define MB (1024*KB)
+#define GB (1024L*MB)
/*
* Note: pte --> Linux PTE
int mmu_highuser_ssize = MMU_SEGSIZE_256M;
u16 mmu_slb_size = 64;
#ifdef CONFIG_HUGETLB_PAGE
-int mmu_huge_psize = MMU_PAGE_16M;
unsigned int HPAGE_SHIFT;
#endif
#ifdef CONFIG_PPC_64K_PAGES
return 0;
}
+/* Scan for 16G memory blocks that have been set aside for huge pages
+ * and reserve those blocks for 16G huge pages.
+ */
+static int __init htab_dt_scan_hugepage_blocks(unsigned long node,
+ const char *uname, int depth,
+ void *data) {
+ char *type = of_get_flat_dt_prop(node, "device_type", NULL);
+ unsigned long *addr_prop;
+ u32 *page_count_prop;
+ unsigned int expected_pages;
+ long unsigned int phys_addr;
+ long unsigned int block_size;
+
+ /* We are scanning "memory" nodes only */
+ if (type == NULL || strcmp(type, "memory") != 0)
+ return 0;
+
+ /* This property is the log base 2 of the number of virtual pages that
+ * will represent this memory block. */
+ page_count_prop = of_get_flat_dt_prop(node, "ibm,expected#pages", NULL);
+ if (page_count_prop == NULL)
+ return 0;
+ expected_pages = (1 << page_count_prop[0]);
+ addr_prop = of_get_flat_dt_prop(node, "reg", NULL);
+ if (addr_prop == NULL)
+ return 0;
+ phys_addr = addr_prop[0];
+ block_size = addr_prop[1];
+ if (block_size != (16 * GB))
+ return 0;
+ printk(KERN_INFO "Huge page(16GB) memory: "
+ "addr = 0x%lX size = 0x%lX pages = %d\n",
+ phys_addr, block_size, expected_pages);
+ lmb_reserve(phys_addr, block_size * expected_pages);
+ add_gpage(phys_addr, block_size, expected_pages);
+ return 0;
+}
+
static void __init htab_init_page_sizes(void)
{
int rc;
);
#ifdef CONFIG_HUGETLB_PAGE
- /* Init large page size. Currently, we pick 16M or 1M depending
+ /* Reserve 16G huge page memory sections for huge pages */
+ of_scan_flat_dt(htab_dt_scan_hugepage_blocks, NULL);
+
+/* Set default large page size. Currently, we pick 16M or 1M depending
* on what is available
*/
if (mmu_psize_defs[MMU_PAGE_16M].shift)
- set_huge_psize(MMU_PAGE_16M);
+ HPAGE_SHIFT = mmu_psize_defs[MMU_PAGE_16M].shift;
/* With 4k/4level pagetables, we can't (for now) cope with a
* huge page size < PMD_SIZE */
else if (mmu_psize_defs[MMU_PAGE_1M].shift)
- set_huge_psize(MMU_PAGE_1M);
+ HPAGE_SHIFT = mmu_psize_defs[MMU_PAGE_1M].shift;
#endif /* CONFIG_HUGETLB_PAGE */
}
#ifdef CONFIG_HUGETLB_PAGE
/* Handle hugepage regions */
- if (HPAGE_SHIFT && psize == mmu_huge_psize) {
+ if (HPAGE_SHIFT && mmu_huge_psizes[psize]) {
DBG_LOW(" -> huge page !\n");
return hash_huge_page(mm, access, ea, vsid, local, trap);
}
#include <asm/cputable.h>
#include <asm/spu.h>
-#define HPAGE_SHIFT_64K 16
-#define HPAGE_SHIFT_16M 24
+#define PAGE_SHIFT_64K 16
+#define PAGE_SHIFT_16M 24
+#define PAGE_SHIFT_16G 34
#define NUM_LOW_AREAS (0x100000000UL >> SID_SHIFT)
#define NUM_HIGH_AREAS (PGTABLE_RANGE >> HTLB_AREA_SHIFT)
+#define MAX_NUMBER_GPAGES 1024
-unsigned int hugepte_shift;
-#define PTRS_PER_HUGEPTE (1 << hugepte_shift)
-#define HUGEPTE_TABLE_SIZE (sizeof(pte_t) << hugepte_shift)
+/* Tracks the 16G pages after the device tree is scanned and before the
+ * huge_boot_pages list is ready. */
+static unsigned long gpage_freearray[MAX_NUMBER_GPAGES];
+static unsigned nr_gpages;
-#define HUGEPD_SHIFT (HPAGE_SHIFT + hugepte_shift)
-#define HUGEPD_SIZE (1UL << HUGEPD_SHIFT)
-#define HUGEPD_MASK (~(HUGEPD_SIZE-1))
+/* Array of valid huge page sizes - non-zero value(hugepte_shift) is
+ * stored for the huge page sizes that are valid.
+ */
+unsigned int mmu_huge_psizes[MMU_PAGE_COUNT] = { }; /* initialize all to 0 */
+
+#define hugepte_shift mmu_huge_psizes
+#define PTRS_PER_HUGEPTE(psize) (1 << hugepte_shift[psize])
+#define HUGEPTE_TABLE_SIZE(psize) (sizeof(pte_t) << hugepte_shift[psize])
+
+#define HUGEPD_SHIFT(psize) (mmu_psize_to_shift(psize) \
+ + hugepte_shift[psize])
+#define HUGEPD_SIZE(psize) (1UL << HUGEPD_SHIFT(psize))
+#define HUGEPD_MASK(psize) (~(HUGEPD_SIZE(psize)-1))
+
+/* Subtract one from array size because we don't need a cache for 4K since
+ * is not a huge page size */
+#define huge_pgtable_cache(psize) (pgtable_cache[HUGEPTE_CACHE_NUM \
+ + psize-1])
+#define HUGEPTE_CACHE_NAME(psize) (huge_pgtable_cache_name[psize])
-#define huge_pgtable_cache (pgtable_cache[HUGEPTE_CACHE_NUM])
+static const char *huge_pgtable_cache_name[MMU_PAGE_COUNT] = {
+ "unused_4K", "hugepte_cache_64K", "unused_64K_AP",
+ "hugepte_cache_1M", "hugepte_cache_16M", "hugepte_cache_16G"
+};
/* Flag to mark huge PD pointers. This means pmd_bad() and pud_bad()
* will choke on pointers to hugepte tables, which is handy for
#define hugepd_none(hpd) ((hpd).pd == 0)
+static inline int shift_to_mmu_psize(unsigned int shift)
+{
+ switch (shift) {
+#ifndef CONFIG_PPC_64K_PAGES
+ case PAGE_SHIFT_64K:
+ return MMU_PAGE_64K;
+#endif
+ case PAGE_SHIFT_16M:
+ return MMU_PAGE_16M;
+ case PAGE_SHIFT_16G:
+ return MMU_PAGE_16G;
+ }
+ return -1;
+}
+
+static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize)
+{
+ if (mmu_psize_defs[mmu_psize].shift)
+ return mmu_psize_defs[mmu_psize].shift;
+ BUG();
+}
+
static inline pte_t *hugepd_page(hugepd_t hpd)
{
BUG_ON(!(hpd.pd & HUGEPD_OK));
return (pte_t *)(hpd.pd & ~HUGEPD_OK);
}
-static inline pte_t *hugepte_offset(hugepd_t *hpdp, unsigned long addr)
+static inline pte_t *hugepte_offset(hugepd_t *hpdp, unsigned long addr,
+ struct hstate *hstate)
{
- unsigned long idx = ((addr >> HPAGE_SHIFT) & (PTRS_PER_HUGEPTE-1));
+ unsigned int shift = huge_page_shift(hstate);
+ int psize = shift_to_mmu_psize(shift);
+ unsigned long idx = ((addr >> shift) & (PTRS_PER_HUGEPTE(psize)-1));
pte_t *dir = hugepd_page(*hpdp);
return dir + idx;
}
static int __hugepte_alloc(struct mm_struct *mm, hugepd_t *hpdp,
- unsigned long address)
+ unsigned long address, unsigned int psize)
{
- pte_t *new = kmem_cache_alloc(huge_pgtable_cache,
+ pte_t *new = kmem_cache_alloc(huge_pgtable_cache(psize),
GFP_KERNEL|__GFP_REPEAT);
if (! new)
spin_lock(&mm->page_table_lock);
if (!hugepd_none(*hpdp))
- kmem_cache_free(huge_pgtable_cache, new);
+ kmem_cache_free(huge_pgtable_cache(psize), new);
else
hpdp->pd = (unsigned long)new | HUGEPD_OK;
spin_unlock(&mm->page_table_lock);
/* Base page size affects how we walk hugetlb page tables */
#ifdef CONFIG_PPC_64K_PAGES
-#define hpmd_offset(pud, addr) pmd_offset(pud, addr)
-#define hpmd_alloc(mm, pud, addr) pmd_alloc(mm, pud, addr)
+#define hpmd_offset(pud, addr, h) pmd_offset(pud, addr)
+#define hpmd_alloc(mm, pud, addr, h) pmd_alloc(mm, pud, addr)
#else
static inline
-pmd_t *hpmd_offset(pud_t *pud, unsigned long addr)
+pmd_t *hpmd_offset(pud_t *pud, unsigned long addr, struct hstate *hstate)
{
- if (HPAGE_SHIFT == HPAGE_SHIFT_64K)
+ if (huge_page_shift(hstate) == PAGE_SHIFT_64K)
return pmd_offset(pud, addr);
else
return (pmd_t *) pud;
}
static inline
-pmd_t *hpmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long addr)
+pmd_t *hpmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long addr,
+ struct hstate *hstate)
{
- if (HPAGE_SHIFT == HPAGE_SHIFT_64K)
+ if (huge_page_shift(hstate) == PAGE_SHIFT_64K)
return pmd_alloc(mm, pud, addr);
else
return (pmd_t *) pud;
}
#endif
+/* Build list of addresses of gigantic pages. This function is used in early
+ * boot before the buddy or bootmem allocator is setup.
+ */
+void add_gpage(unsigned long addr, unsigned long page_size,
+ unsigned long number_of_pages)
+{
+ if (!addr)
+ return;
+ while (number_of_pages > 0) {
+ gpage_freearray[nr_gpages] = addr;
+ nr_gpages++;
+ number_of_pages--;
+ addr += page_size;
+ }
+}
+
+/* Moves the gigantic page addresses from the temporary list to the
+ * huge_boot_pages list.
+ */
+int alloc_bootmem_huge_page(struct hstate *hstate)
+{
+ struct huge_bootmem_page *m;
+ if (nr_gpages == 0)
+ return 0;
+ m = phys_to_virt(gpage_freearray[--nr_gpages]);
+ gpage_freearray[nr_gpages] = 0;
+ list_add(&m->list, &huge_boot_pages);
+ m->hstate = hstate;
+ return 1;
+}
+
+
/* Modelled after find_linux_pte() */
pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
{
pud_t *pu;
pmd_t *pm;
- BUG_ON(get_slice_psize(mm, addr) != mmu_huge_psize);
+ unsigned int psize;
+ unsigned int shift;
+ unsigned long sz;
+ struct hstate *hstate;
+ psize = get_slice_psize(mm, addr);
+ shift = mmu_psize_to_shift(psize);
+ sz = ((1UL) << shift);
+ hstate = size_to_hstate(sz);
- addr &= HPAGE_MASK;
+ addr &= hstate->mask;
pg = pgd_offset(mm, addr);
if (!pgd_none(*pg)) {
pu = pud_offset(pg, addr);
if (!pud_none(*pu)) {
- pm = hpmd_offset(pu, addr);
+ pm = hpmd_offset(pu, addr, hstate);
if (!pmd_none(*pm))
- return hugepte_offset((hugepd_t *)pm, addr);
+ return hugepte_offset((hugepd_t *)pm, addr,
+ hstate);
}
}
return NULL;
}
-pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr)
+pte_t *huge_pte_alloc(struct mm_struct *mm,
+ unsigned long addr, unsigned long sz)
{
pgd_t *pg;
pud_t *pu;
pmd_t *pm;
hugepd_t *hpdp = NULL;
+ struct hstate *hstate;
+ unsigned int psize;
+ hstate = size_to_hstate(sz);
- BUG_ON(get_slice_psize(mm, addr) != mmu_huge_psize);
+ psize = get_slice_psize(mm, addr);
+ BUG_ON(!mmu_huge_psizes[psize]);
- addr &= HPAGE_MASK;
+ addr &= hstate->mask;
pg = pgd_offset(mm, addr);
pu = pud_alloc(mm, pg, addr);
if (pu) {
- pm = hpmd_alloc(mm, pu, addr);
+ pm = hpmd_alloc(mm, pu, addr, hstate);
if (pm)
hpdp = (hugepd_t *)pm;
}
if (! hpdp)
return NULL;
- if (hugepd_none(*hpdp) && __hugepte_alloc(mm, hpdp, addr))
+ if (hugepd_none(*hpdp) && __hugepte_alloc(mm, hpdp, addr, psize))
return NULL;
- return hugepte_offset(hpdp, addr);
+ return hugepte_offset(hpdp, addr, hstate);
}
int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep)
return 0;
}
-static void free_hugepte_range(struct mmu_gather *tlb, hugepd_t *hpdp)
+static void free_hugepte_range(struct mmu_gather *tlb, hugepd_t *hpdp,
+ unsigned int psize)
{
pte_t *hugepte = hugepd_page(*hpdp);
hpdp->pd = 0;
tlb->need_flush = 1;
- pgtable_free_tlb(tlb, pgtable_free_cache(hugepte, HUGEPTE_CACHE_NUM,
+ pgtable_free_tlb(tlb, pgtable_free_cache(hugepte,
+ HUGEPTE_CACHE_NUM+psize-1,
PGF_CACHENUM_MASK));
}
static void hugetlb_free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
unsigned long addr, unsigned long end,
- unsigned long floor, unsigned long ceiling)
+ unsigned long floor, unsigned long ceiling,
+ unsigned int psize)
{
pmd_t *pmd;
unsigned long next;
next = pmd_addr_end(addr, end);
if (pmd_none(*pmd))
continue;
- free_hugepte_range(tlb, (hugepd_t *)pmd);
+ free_hugepte_range(tlb, (hugepd_t *)pmd, psize);
} while (pmd++, addr = next, addr != end);
start &= PUD_MASK;
pud_t *pud;
unsigned long next;
unsigned long start;
+ unsigned int shift;
+ unsigned int psize = get_slice_psize(tlb->mm, addr);
+ shift = mmu_psize_to_shift(psize);
start = addr;
pud = pud_offset(pgd, addr);
#ifdef CONFIG_PPC_64K_PAGES
if (pud_none_or_clear_bad(pud))
continue;
- hugetlb_free_pmd_range(tlb, pud, addr, next, floor, ceiling);
+ hugetlb_free_pmd_range(tlb, pud, addr, next, floor, ceiling,
+ psize);
#else
- if (HPAGE_SHIFT == HPAGE_SHIFT_64K) {
+ if (shift == PAGE_SHIFT_64K) {
if (pud_none_or_clear_bad(pud))
continue;
- hugetlb_free_pmd_range(tlb, pud, addr, next, floor, ceiling);
+ hugetlb_free_pmd_range(tlb, pud, addr, next, floor,
+ ceiling, psize);
} else {
if (pud_none(*pud))
continue;
- free_hugepte_range(tlb, (hugepd_t *)pud);
+ free_hugepte_range(tlb, (hugepd_t *)pud, psize);
}
#endif
} while (pud++, addr = next, addr != end);
*
* Must be called with pagetable lock held.
*/
-void hugetlb_free_pgd_range(struct mmu_gather **tlb,
+void hugetlb_free_pgd_range(struct mmu_gather *tlb,
unsigned long addr, unsigned long end,
unsigned long floor, unsigned long ceiling)
{
* now has no other vmas using it, so can be freed, we don't
* bother to round floor or end up - the tests don't need that.
*/
+ unsigned int psize = get_slice_psize(tlb->mm, addr);
- addr &= HUGEPD_MASK;
+ addr &= HUGEPD_MASK(psize);
if (addr < floor) {
- addr += HUGEPD_SIZE;
+ addr += HUGEPD_SIZE(psize);
if (!addr)
return;
}
if (ceiling) {
- ceiling &= HUGEPD_MASK;
+ ceiling &= HUGEPD_MASK(psize);
if (!ceiling)
return;
}
if (end - 1 > ceiling - 1)
- end -= HUGEPD_SIZE;
+ end -= HUGEPD_SIZE(psize);
if (addr > end - 1)
return;
start = addr;
- pgd = pgd_offset((*tlb)->mm, addr);
+ pgd = pgd_offset(tlb->mm, addr);
do {
- BUG_ON(get_slice_psize((*tlb)->mm, addr) != mmu_huge_psize);
+ psize = get_slice_psize(tlb->mm, addr);
+ BUG_ON(!mmu_huge_psizes[psize]);
next = pgd_addr_end(addr, end);
if (pgd_none_or_clear_bad(pgd))
continue;
- hugetlb_free_pud_range(*tlb, pgd, addr, next, floor, ceiling);
+ hugetlb_free_pud_range(tlb, pgd, addr, next, floor, ceiling);
} while (pgd++, addr = next, addr != end);
}
* necessary anymore if we make hpte_need_flush() get the
* page size from the slices
*/
- pte_update(mm, addr & HPAGE_MASK, ptep, ~0UL, 1);
+ unsigned int psize = get_slice_psize(mm, addr);
+ unsigned int shift = mmu_psize_to_shift(psize);
+ unsigned long sz = ((1UL) << shift);
+ struct hstate *hstate = size_to_hstate(sz);
+ pte_update(mm, addr & hstate->mask, ptep, ~0UL, 1);
}
*ptep = __pte(pte_val(pte) & ~_PAGE_HPTEFLAGS);
}
{
pte_t *ptep;
struct page *page;
+ unsigned int mmu_psize = get_slice_psize(mm, address);
- if (get_slice_psize(mm, address) != mmu_huge_psize)
+ /* Verify it is a huge page else bail. */
+ if (!mmu_huge_psizes[mmu_psize])
return ERR_PTR(-EINVAL);
ptep = huge_pte_offset(mm, address);
page = pte_page(*ptep);
- if (page)
- page += (address % HPAGE_SIZE) / PAGE_SIZE;
+ if (page) {
+ unsigned int shift = mmu_psize_to_shift(mmu_psize);
+ unsigned long sz = ((1UL) << shift);
+ page += (address % sz) / PAGE_SIZE;
+ }
return page;
}
return 0;
}
+int pud_huge(pud_t pud)
+{
+ return 0;
+}
+
struct page *
follow_huge_pmd(struct mm_struct *mm, unsigned long address,
pmd_t *pmd, int write)
unsigned long len, unsigned long pgoff,
unsigned long flags)
{
- return slice_get_unmapped_area(addr, len, flags,
- mmu_huge_psize, 1, 0);
+ struct hstate *hstate = hstate_file(file);
+ int mmu_psize = shift_to_mmu_psize(huge_page_shift(hstate));
+ return slice_get_unmapped_area(addr, len, flags, mmu_psize, 1, 0);
}
/*
* Called by asm hashtable.S for doing lazy icache flush
*/
static unsigned int hash_huge_page_do_lazy_icache(unsigned long rflags,
- pte_t pte, int trap)
+ pte_t pte, int trap, unsigned long sz)
{
struct page *page;
int i;
/* page is dirty */
if (!test_bit(PG_arch_1, &page->flags) && !PageReserved(page)) {
if (trap == 0x400) {
- for (i = 0; i < (HPAGE_SIZE / PAGE_SIZE); i++)
+ for (i = 0; i < (sz / PAGE_SIZE); i++)
__flush_dcache_icache(page_address(page+i));
set_bit(PG_arch_1, &page->flags);
} else {
{
pte_t *ptep;
unsigned long old_pte, new_pte;
- unsigned long va, rflags, pa;
+ unsigned long va, rflags, pa, sz;
long slot;
int err = 1;
int ssize = user_segment_size(ea);
+ unsigned int mmu_psize;
+ int shift;
+ mmu_psize = get_slice_psize(mm, ea);
+ if (!mmu_huge_psizes[mmu_psize])
+ goto out;
ptep = huge_pte_offset(mm, ea);
/* Search the Linux page table for a match with va */
rflags = 0x2 | (!(new_pte & _PAGE_RW));
/* _PAGE_EXEC -> HW_NO_EXEC since it's inverted */
rflags |= ((new_pte & _PAGE_EXEC) ? 0 : HPTE_R_N);
+ shift = mmu_psize_to_shift(mmu_psize);
+ sz = ((1UL) << shift);
if (!cpu_has_feature(CPU_FTR_COHERENT_ICACHE))
/* No CPU has hugepages but lacks no execute, so we
* don't need to worry about that case */
rflags = hash_huge_page_do_lazy_icache(rflags, __pte(old_pte),
- trap);
+ trap, sz);
/* Check if pte already has an hpte (case 2) */
if (unlikely(old_pte & _PAGE_HASHPTE)) {
/* There MIGHT be an HPTE for this pte */
unsigned long hash, slot;
- hash = hpt_hash(va, HPAGE_SHIFT, ssize);
+ hash = hpt_hash(va, shift, ssize);
if (old_pte & _PAGE_F_SECOND)
hash = ~hash;
slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
slot += (old_pte & _PAGE_F_GIX) >> 12;
- if (ppc_md.hpte_updatepp(slot, rflags, va, mmu_huge_psize,
+ if (ppc_md.hpte_updatepp(slot, rflags, va, mmu_psize,
ssize, local) == -1)
old_pte &= ~_PAGE_HPTEFLAGS;
}
if (likely(!(old_pte & _PAGE_HASHPTE))) {
- unsigned long hash = hpt_hash(va, HPAGE_SHIFT, ssize);
+ unsigned long hash = hpt_hash(va, shift, ssize);
unsigned long hpte_group;
pa = pte_pfn(__pte(old_pte)) << PAGE_SHIFT;
/* Insert into the hash table, primary slot */
slot = ppc_md.hpte_insert(hpte_group, va, pa, rflags, 0,
- mmu_huge_psize, ssize);
+ mmu_psize, ssize);
/* Primary is full, try the secondary */
if (unlikely(slot == -1)) {
HPTES_PER_GROUP) & ~0x7UL;
slot = ppc_md.hpte_insert(hpte_group, va, pa, rflags,
HPTE_V_SECONDARY,
- mmu_huge_psize, ssize);
+ mmu_psize, ssize);
if (slot == -1) {
if (mftb() & 0x1)
hpte_group = ((hash & htab_hash_mask) *
{
/* Check that it is a page size supported by the hardware and
* that it fits within pagetable limits. */
- if (mmu_psize_defs[psize].shift && mmu_psize_defs[psize].shift < SID_SHIFT &&
+ if (mmu_psize_defs[psize].shift &&
+ mmu_psize_defs[psize].shift < SID_SHIFT_1T &&
(mmu_psize_defs[psize].shift > MIN_HUGEPTE_SHIFT ||
- mmu_psize_defs[psize].shift == HPAGE_SHIFT_64K)) {
- HPAGE_SHIFT = mmu_psize_defs[psize].shift;
- mmu_huge_psize = psize;
-#ifdef CONFIG_PPC_64K_PAGES
- hugepte_shift = (PMD_SHIFT-HPAGE_SHIFT);
-#else
- if (HPAGE_SHIFT == HPAGE_SHIFT_64K)
- hugepte_shift = (PMD_SHIFT-HPAGE_SHIFT);
- else
- hugepte_shift = (PUD_SHIFT-HPAGE_SHIFT);
-#endif
-
+ mmu_psize_defs[psize].shift == PAGE_SHIFT_64K ||
+ mmu_psize_defs[psize].shift == PAGE_SHIFT_16G)) {
+ /* Return if huge page size has already been setup or is the
+ * same as the base page size. */
+ if (mmu_huge_psizes[psize] ||
+ mmu_psize_defs[psize].shift == PAGE_SHIFT)
+ return;
+ hugetlb_add_hstate(mmu_psize_defs[psize].shift - PAGE_SHIFT);
+
+ switch (mmu_psize_defs[psize].shift) {
+ case PAGE_SHIFT_64K:
+ /* We only allow 64k hpages with 4k base page,
+ * which was checked above, and always put them
+ * at the PMD */
+ hugepte_shift[psize] = PMD_SHIFT;
+ break;
+ case PAGE_SHIFT_16M:
+ /* 16M pages can be at two different levels
+ * of pagestables based on base page size */
+ if (PAGE_SHIFT == PAGE_SHIFT_64K)
+ hugepte_shift[psize] = PMD_SHIFT;
+ else /* 4k base page */
+ hugepte_shift[psize] = PUD_SHIFT;
+ break;
+ case PAGE_SHIFT_16G:
+ /* 16G pages are always at PGD level */
+ hugepte_shift[psize] = PGDIR_SHIFT;
+ break;
+ }
+ hugepte_shift[psize] -= mmu_psize_defs[psize].shift;
} else
- HPAGE_SHIFT = 0;
+ hugepte_shift[psize] = 0;
}
static int __init hugepage_setup_sz(char *str)
{
unsigned long long size;
- int mmu_psize = -1;
+ int mmu_psize;
int shift;
size = memparse(str, &str);
shift = __ffs(size);
- switch (shift) {
-#ifndef CONFIG_PPC_64K_PAGES
- case HPAGE_SHIFT_64K:
- mmu_psize = MMU_PAGE_64K;
- break;
-#endif
- case HPAGE_SHIFT_16M:
- mmu_psize = MMU_PAGE_16M;
- break;
- }
-
- if (mmu_psize >=0 && mmu_psize_defs[mmu_psize].shift)
+ mmu_psize = shift_to_mmu_psize(shift);
+ if (mmu_psize >= 0 && mmu_psize_defs[mmu_psize].shift)
set_huge_psize(mmu_psize);
else
printk(KERN_WARNING "Invalid huge page size specified(%llu)\n", size);
static int __init hugetlbpage_init(void)
{
+ unsigned int psize;
+
if (!cpu_has_feature(CPU_FTR_16M_PAGE))
return -ENODEV;
-
- huge_pgtable_cache = kmem_cache_create("hugepte_cache",
- HUGEPTE_TABLE_SIZE,
- HUGEPTE_TABLE_SIZE,
- 0,
- zero_ctor);
- if (! huge_pgtable_cache)
- panic("hugetlbpage_init(): could not create hugepte cache\n");
+ /* Add supported huge page sizes. Need to change HUGE_MAX_HSTATE
+ * and adjust PTE_NONCACHE_NUM if the number of supported huge page
+ * sizes changes.
+ */
+ set_huge_psize(MMU_PAGE_16M);
+ set_huge_psize(MMU_PAGE_64K);
+ set_huge_psize(MMU_PAGE_16G);
+
+ for (psize = 0; psize < MMU_PAGE_COUNT; ++psize) {
+ if (mmu_huge_psizes[psize]) {
+ huge_pgtable_cache(psize) = kmem_cache_create(
+ HUGEPTE_CACHE_NAME(psize),
+ HUGEPTE_TABLE_SIZE(psize),
+ HUGEPTE_TABLE_SIZE(psize),
+ 0,
+ zero_ctor);
+ if (!huge_pgtable_cache(psize))
+ panic("hugetlbpage_init(): could not create %s"\
+ "\n", HUGEPTE_CACHE_NAME(psize));
+ }
+ }
return 0;
}
};
#ifdef CONFIG_HUGETLB_PAGE
-/* Hugepages need one extra cache, initialized in hugetlbpage.c. We
- * can't put into the tables above, because HPAGE_SHIFT is not compile
- * time constant. */
-struct kmem_cache *pgtable_cache[ARRAY_SIZE(pgtable_cache_size)+1];
+/* Hugepages need an extra cache per hugepagesize, initialized in
+ * hugetlbpage.c. We can't put into the tables above, because HPAGE_SHIFT
+ * is not compile time constant. */
+struct kmem_cache *pgtable_cache[ARRAY_SIZE(pgtable_cache_size)+MMU_PAGE_COUNT];
#else
struct kmem_cache *pgtable_cache[ARRAY_SIZE(pgtable_cache_size)];
#endif
EXPORT_SYMBOL(numa_cpumask_lookup_table);
EXPORT_SYMBOL(node_data);
-static bootmem_data_t __initdata plat_node_bdata[MAX_NUMNODES];
static int min_common_depth;
static int n_mem_addr_cells, n_mem_size_cells;
dbg("node %d\n", nid);
dbg("NODE_DATA() = %p\n", NODE_DATA(nid));
- NODE_DATA(nid)->bdata = &plat_node_bdata[nid];
+ NODE_DATA(nid)->bdata = &bootmem_node_data[nid];
NODE_DATA(nid)->node_start_pfn = start_pfn;
NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn;
void __iomem *
ioremap(phys_addr_t addr, unsigned long size)
{
- return __ioremap(addr, size, _PAGE_NO_CACHE);
+ return __ioremap(addr, size, _PAGE_NO_CACHE | _PAGE_GUARDED);
}
EXPORT_SYMBOL(ioremap);
void __iomem *
ioremap_flags(phys_addr_t addr, unsigned long size, unsigned long flags)
{
+ /* writeable implies dirty for kernel addresses */
+ if (flags & _PAGE_RW)
+ flags |= _PAGE_DIRTY | _PAGE_HWWRITE;
+
+ /* we don't want to let _PAGE_USER and _PAGE_EXEC leak out */
+ flags &= ~(_PAGE_USER | _PAGE_EXEC | _PAGE_HWEXEC);
+
return __ioremap(addr, size, flags);
}
EXPORT_SYMBOL(ioremap_flags);
phys_addr_t p;
int err;
+ /* Make sure we have the base flags */
+ if ((flags & _PAGE_PRESENT) == 0)
+ flags |= _PAGE_KERNEL;
+
+ /* Non-cacheable page cannot be coherent */
+ if (flags & _PAGE_NO_CACHE)
+ flags &= ~_PAGE_COHERENT;
+
/*
* Choose an address to map it to.
* Once the vmalloc system is running, we use it.
v = (ioremap_bot -= size);
}
- if ((flags & _PAGE_PRESENT) == 0)
- flags |= _PAGE_KERNEL;
- if (flags & _PAGE_NO_CACHE)
- flags |= _PAGE_GUARDED;
-
/*
* Should check if it is a candidate for a BAT mapping
*/
{
unsigned long i;
+ /* Make sure we have the base flags */
if ((flags & _PAGE_PRESENT) == 0)
flags |= pgprot_val(PAGE_KERNEL);
+ /* Non-cacheable page cannot be coherent */
+ if (flags & _PAGE_NO_CACHE)
+ flags &= ~_PAGE_COHERENT;
+
+ /* We don't support the 4K PFN hack with ioremap */
+ if (flags & _PAGE_4K_PFN)
+ return NULL;
+
WARN_ON(pa & ~PAGE_MASK);
WARN_ON(((unsigned long)ea) & ~PAGE_MASK);
WARN_ON(size & ~PAGE_MASK);
void __iomem * ioremap_flags(phys_addr_t addr, unsigned long size,
unsigned long flags)
{
+ /* writeable implies dirty for kernel addresses */
+ if (flags & _PAGE_RW)
+ flags |= _PAGE_DIRTY;
+
+ /* we don't want to let _PAGE_USER and _PAGE_EXEC leak out */
+ flags &= ~(_PAGE_USER | _PAGE_EXEC);
+
if (ppc_md.ioremap)
return ppc_md.ioremap(addr, size, flags);
return __ioremap(addr, size, flags);
*/
if (huge) {
#ifdef CONFIG_HUGETLB_PAGE
- psize = mmu_huge_psize;
+ psize = get_slice_psize(mm, addr);;
#else
BUG();
psize = pte_pagesize_index(mm, addr, pte); /* shutup gcc */
return VM_FAULT_NOPAGE;
}
+static int spufs_mem_mmap_access(struct vm_area_struct *vma,
+ unsigned long address,
+ void *buf, int len, int write)
+{
+ struct spu_context *ctx = vma->vm_file->private_data;
+ unsigned long offset = address - vma->vm_start;
+ char *local_store;
+
+ if (write && !(vma->vm_flags & VM_WRITE))
+ return -EACCES;
+ if (spu_acquire(ctx))
+ return -EINTR;
+ if ((offset + len) > vma->vm_end)
+ len = vma->vm_end - offset;
+ local_store = ctx->ops->get_ls(ctx);
+ if (write)
+ memcpy_toio(local_store + offset, buf, len);
+ else
+ memcpy_fromio(buf, local_store + offset, len);
+ spu_release(ctx);
+ return len;
+}
static struct vm_operations_struct spufs_mem_mmap_vmops = {
.fault = spufs_mem_mmap_fault,
+ .access = spufs_mem_mmap_access,
};
static int spufs_mem_mmap(struct file *file, struct vm_area_struct *vma)
page[1].index = 0;
}
-pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr)
+pte_t *huge_pte_alloc(struct mm_struct *mm,
+ unsigned long addr, unsigned long sz)
{
pgd_t *pgdp;
pud_t *pudp;
return !!(pmd_val(pmd) & _SEGMENT_ENTRY_LARGE);
}
+int pud_huge(pud_t pud)
+{
+ return 0;
+}
+
struct page *follow_huge_pmd(struct mm_struct *mm, unsigned long address,
pmd_t *pmdp, int write)
{
config SUPERH
def_bool y
select EMBEDDED
+ select HAVE_CLK
select HAVE_IDE
select HAVE_OPROFILE
help
int fd[2];
int error;
- error = do_pipe(fd);
+ error = do_pipe_flags(fd, 0);
if (!error) {
regs->regs[1] = fd[1];
return fd[0];
#include <asm/tlbflush.h>
#include <asm/cacheflush.h>
-pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr)
+pte_t *huge_pte_alloc(struct mm_struct *mm,
+ unsigned long addr, unsigned long sz)
{
pgd_t *pgd;
pud_t *pud;
return 0;
}
+int pud_huge(pud_t pud)
+{
+ return 0;
+}
+
struct page *follow_huge_pmd(struct mm_struct *mm, unsigned long address,
pmd_t *pmd, int write)
{
pg_data_t *pgdat = NODE_DATA(nid);
unsigned long low, start_pfn;
- start_pfn = pgdat->bdata->node_boot_start >> PAGE_SHIFT;
+ start_pfn = pgdat->bdata->node_min_pfn;
low = pgdat->bdata->node_low_pfn;
if (max_zone_pfns[ZONE_NORMAL] < low)
#include <linux/pfn.h>
#include <asm/sections.h>
-static bootmem_data_t plat_node_bdata[MAX_NUMNODES];
struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
EXPORT_SYMBOL_GPL(node_data);
NODE_DATA(0) = pfn_to_kaddr(free_pfn);
memset(NODE_DATA(0), 0, sizeof(struct pglist_data));
free_pfn += PFN_UP(sizeof(struct pglist_data));
- NODE_DATA(0)->bdata = &plat_node_bdata[0];
+ NODE_DATA(0)->bdata = &bootmem_node_data[0];
/* Set up node 0 */
setup_bootmem_allocator(free_pfn);
free_pfn += PFN_UP(sizeof(struct pglist_data));
memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
- NODE_DATA(nid)->bdata = &plat_node_bdata[nid];
+ NODE_DATA(nid)->bdata = &bootmem_node_data[nid];
NODE_DATA(nid)->node_start_pfn = start_pfn;
NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn;
int fd[2];
int error;
- error = do_pipe(fd);
+ error = do_pipe_flags(fd, 0);
if (error)
goto out;
regs->u_regs[UREG_I1] = fd[1];
zones_size[ZONE_HIGHMEM] = npages;
zholes_size[ZONE_HIGHMEM] = npages - calc_highpages();
- free_area_init_node(0, &contig_page_data, zones_size,
- pfn_base, zholes_size);
+ free_area_init_node(0, zones_size, pfn_base, zholes_size);
}
}
zones_size[ZONE_HIGHMEM] = npages;
zholes_size[ZONE_HIGHMEM] = npages - calc_highpages();
- free_area_init_node(0, &contig_page_data, zones_size,
- pfn_base, zholes_size);
+ free_area_init_node(0, zones_size, pfn_base, zholes_size);
}
cnt = 0;
#define IO_PAGE_SHIFT 13
#define IO_PAGE_SIZE (1UL << IO_PAGE_SHIFT)
#define IO_PAGE_MASK (~(IO_PAGE_SIZE-1))
-#define IO_PAGE_ALIGN(addr) (((addr)+IO_PAGE_SIZE-1)&IO_PAGE_MASK)
+#define IO_PAGE_ALIGN(addr) ALIGN(addr, IO_PAGE_SIZE)
#define IO_TSB_ENTRIES (128*1024)
#define IO_TSB_SIZE (IO_TSB_ENTRIES * 8)
unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino)
{
struct irq_handler_data *data;
- struct ino_bucket *bucket;
unsigned long hv_err, cookie;
+ struct ino_bucket *bucket;
+ struct irq_desc *desc;
unsigned int virt_irq;
bucket = kzalloc(sizeof(struct ino_bucket), GFP_ATOMIC);
if (unlikely(!data))
return 0;
+ /* In order to make the LDC channel startup sequence easier,
+ * especially wrt. locking, we do not let request_irq() enable
+ * the interrupt.
+ */
+ desc = irq_desc + virt_irq;
+ desc->status |= IRQ_NOAUTOEN;
+
set_irq_chip_data(virt_irq, data);
/* Catch accidental accesses to these things. IMAP/ICLR handling
/* ldc.c: Logical Domain Channel link-layer protocol driver.
*
- * Copyright (C) 2007 David S. Miller <davem@davemloft.net>
+ * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net>
*/
#include <linux/kernel.h>
#define DRV_MODULE_NAME "ldc"
#define PFX DRV_MODULE_NAME ": "
-#define DRV_MODULE_VERSION "1.0"
-#define DRV_MODULE_RELDATE "June 25, 2007"
+#define DRV_MODULE_VERSION "1.1"
+#define DRV_MODULE_RELDATE "July 22, 2008"
static char version[] __devinitdata =
DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
unsigned long hv_err, flags;
int err = -EINVAL;
- spin_lock_irqsave(&lp->lock, flags);
-
- if (!name)
- goto out_err;
-
- if (lp->state != LDC_STATE_INIT)
- goto out_err;
+ if (!name ||
+ (lp->state != LDC_STATE_INIT))
+ return -EINVAL;
snprintf(lp->rx_irq_name, LDC_IRQ_NAME_MAX, "%s RX", name);
snprintf(lp->tx_irq_name, LDC_IRQ_NAME_MAX, "%s TX", name);
IRQF_SAMPLE_RANDOM | IRQF_SHARED,
lp->rx_irq_name, lp);
if (err)
- goto out_err;
+ return err;
err = request_irq(lp->cfg.tx_irq, ldc_tx,
IRQF_SAMPLE_RANDOM | IRQF_SHARED,
lp->tx_irq_name, lp);
- if (err)
- goto out_free_rx_irq;
+ if (err) {
+ free_irq(lp->cfg.rx_irq, lp);
+ return err;
+ }
+
+ spin_lock_irqsave(&lp->lock, flags);
+
+ enable_irq(lp->cfg.rx_irq);
+ enable_irq(lp->cfg.tx_irq);
lp->flags |= LDC_FLAG_REGISTERED_IRQS;
err = -ENODEV;
hv_err = sun4v_ldc_tx_qconf(lp->id, 0, 0);
if (hv_err)
- goto out_free_tx_irq;
+ goto out_free_irqs;
hv_err = sun4v_ldc_tx_qconf(lp->id, lp->tx_ra, lp->tx_num_entries);
if (hv_err)
- goto out_free_tx_irq;
+ goto out_free_irqs;
hv_err = sun4v_ldc_rx_qconf(lp->id, 0, 0);
if (hv_err)
out_unmap_tx:
sun4v_ldc_tx_qconf(lp->id, 0, 0);
-out_free_tx_irq:
+out_free_irqs:
lp->flags &= ~LDC_FLAG_REGISTERED_IRQS;
free_irq(lp->cfg.tx_irq, lp);
-
-out_free_rx_irq:
free_irq(lp->cfg.rx_irq, lp);
-out_err:
spin_unlock_irqrestore(&lp->lock, flags);
return err;
int fd[2];
int error;
- error = do_pipe(fd);
+ error = do_pipe_flags(fd, 0);
if (error)
goto out;
regs->u_regs[UREG_I1] = fd[1];
.notifier_call = sparc64_cpufreq_notifier
};
+static int __init register_sparc64_cpufreq_notifier(void)
+{
+
+ cpufreq_register_notifier(&sparc64_cpufreq_notifier_block,
+ CPUFREQ_TRANSITION_NOTIFIER);
+ return 0;
+}
+
+core_initcall(register_sparc64_cpufreq_notifier);
+
#endif /* CONFIG_CPU_FREQ */
static int sparc64_next_event(unsigned long delta,
sparc64_clockevent.mult, sparc64_clockevent.shift);
setup_sparc64_timer();
-
-#ifdef CONFIG_CPU_FREQ
- cpufreq_register_notifier(&sparc64_cpufreq_notifier_block,
- CPUFREQ_TRANSITION_NOTIFIER);
-#endif
}
unsigned long long sched_clock(void)
return -ENOMEM;
if (flags & MAP_FIXED) {
- if (prepare_hugepage_range(addr, len))
+ if (prepare_hugepage_range(file, addr, len))
return -EINVAL;
return addr;
}
pgoff, flags);
}
-pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr)
+pte_t *huge_pte_alloc(struct mm_struct *mm,
+ unsigned long addr, unsigned long sz)
{
pgd_t *pgd;
pud_t *pud;
return 0;
}
+int pud_huge(pud_t pud)
+{
+ return 0;
+}
+
struct page *follow_huge_pmd(struct mm_struct *mm, unsigned long address,
pmd_t *pmd, int write)
{
cpumask_t numa_cpumask_lookup_table[MAX_NUMNODES];
#ifdef CONFIG_NEED_MULTIPLE_NODES
-static bootmem_data_t plat_node_bdata[MAX_NUMNODES];
struct mdesc_mblock {
u64 base;
NODE_DATA(nid) = __va(paddr);
memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
- NODE_DATA(nid)->bdata = &plat_node_bdata[nid];
+ NODE_DATA(nid)->bdata = &bootmem_node_data[nid];
#endif
p = NODE_DATA(nid);
irq_handler_t handler,
unsigned long irqflags, const char * devname,
void *dev_id);
-extern int init_aio_irq(int irq, char *name,
- irq_handler_t handler);
#endif
enum { IRQ_READ, IRQ_WRITE };
extern void sigio_handler(int sig, struct uml_pt_regs *regs);
-extern int activate_fd(int irq, int fd, int type, void *dev_id);
-extern void free_irq_by_irq_and_dev(unsigned int irq, void *dev_id);
extern void free_irq_by_fd(int fd);
extern void reactivate_fd(int fd, int irqnum);
extern void deactivate_fd(int fd, int irqnum);
extern void new_thread_handler(void);
extern void handle_syscall(struct uml_pt_regs *regs);
extern int new_mm(unsigned long stack);
-extern void get_skas_faultinfo(int pid, struct faultinfo * fi);
extern long execute_syscall_skas(void *r);
extern unsigned long current_stub_stack(void);
extern int __do_copy_to_user(void *to, const void *from, int n,
void **fault_addr, jmp_buf **fault_catcher);
-extern void __do_copy(void *to, const void *from, int n);
/*
* strncpy_from_user: - Copy a NUL terminated string from userspace.
static DEFINE_SPINLOCK(irq_lock);
-int activate_fd(int irq, int fd, int type, void *dev_id)
+static int activate_fd(int irq, int fd, int type, void *dev_id)
{
struct pollfd *tmp_pfd;
struct irq_fd *new_fd, *irq_fd;
return ((irq->irq == data->irq) && (irq->id == data->dev));
}
-void free_irq_by_irq_and_dev(unsigned int irq, void *dev)
+static void free_irq_by_irq_and_dev(unsigned int irq, void *dev)
{
struct irq_and_dev data = ((struct irq_and_dev) { .irq = irq,
.dev = dev });
}
}
-int init_aio_irq(int irq, char *name, irq_handler_t handler)
-{
- int fds[2], err;
-
- err = os_pipe(fds, 1, 1);
- if (err) {
- printk(KERN_ERR "init_aio_irq - os_pipe failed, err = %d\n",
- -err);
- goto out;
- }
-
- err = um_request_irq(irq, fds[0], IRQ_READ, handler,
- IRQF_DISABLED | IRQF_SAMPLE_RANDOM, name,
- (void *) (long) fds[0]);
- if (err) {
- printk(KERN_ERR "init_aio_irq - : um_request_irq failed, "
- "err = %d\n",
- err);
- goto out_close;
- }
-
- err = fds[1];
- goto out;
-
- out_close:
- os_close_file(fds[0]);
- os_close_file(fds[1]);
- out:
- return err;
-}
-
/*
* IRQ stack entry and exit:
*
EXPORT_SYMBOL(kernel_thread);
EXPORT_SYMBOL(sys_waitpid);
EXPORT_SYMBOL(flush_tlb_range);
-EXPORT_SYMBOL(arch_validate);
EXPORT_SYMBOL(high_physmem);
EXPORT_SYMBOL(empty_zero_page);
/* allocated in paging_init, zeroed in mem_init, and unchanged thereafter */
unsigned long *empty_zero_page = NULL;
/* allocated in paging_init and unchanged thereafter */
-unsigned long *empty_bad_page = NULL;
+static unsigned long *empty_bad_page = NULL;
/*
* Initialized during boot, and readonly for initializing page tables
#endif
}
-struct page *arch_validate(struct page *page, gfp_t mask, int order)
-{
- unsigned long addr, zero = 0;
- int i;
-
- again:
- if (page == NULL)
- return page;
- if (PageHighMem(page))
- return page;
-
- addr = (unsigned long) page_address(page);
- for (i = 0; i < (1 << order); i++) {
- current->thread.fault_addr = (void *) addr;
- if (__do_copy_to_user((void __user *) addr, &zero,
- sizeof(zero),
- ¤t->thread.fault_addr,
- ¤t->thread.fault_catcher)) {
- if (!(mask & __GFP_WAIT))
- return NULL;
- else break;
- }
- addr += PAGE_SIZE;
- }
-
- if (i == (1 << order))
- return page;
- page = alloc_pages(mask, order);
- goto again;
-}
-
/*
* This can't do anything because nothing in the kernel image can be freed
* since it's not in kernel physical memory.
return 0;
}
-int setup_iomem(void)
+static int setup_iomem(void)
{
struct iomem_region *region = iomem_regions;
unsigned long iomem_start = high_physmem + PAGE_SIZE;
return ret;
}
-void send_sigtrap(struct task_struct *tsk, struct uml_pt_regs *regs,
+static void send_sigtrap(struct task_struct *tsk, struct uml_pt_regs *regs,
int error_code)
{
struct siginfo info;
#include "kern_util.h"
#include "os.h"
-/*
- * Scheduler clock - returns current time in nanosec units.
- */
-unsigned long long sched_clock(void)
-{
- return (unsigned long long)jiffies_64 * (NSEC_PER_SEC / HZ);
-}
-
void timer_handler(int sig, struct uml_pt_regs *regs)
{
unsigned long flags;
#include <linux/string.h>
#include "os.h"
-void __do_copy(void *to, const void *from, int n)
+static void __do_copy(void *to, const void *from, int n)
{
memcpy(to, from, n);
}
printk(UM_KERN_CONT "No, enabling workaround\n");
}
-void __init check_sigio(void)
+static void __init check_sigio(void)
{
if ((access("/dev/ptmx", R_OK) < 0) &&
(access("/dev/ptyp0", R_OK) < 0)) {
panic("enabling signal stack failed, errno = %d\n", errno);
}
-void (*handlers[_NSIG])(int sig, struct sigcontext *sc);
+static void (*handlers[_NSIG])(int sig, struct sigcontext *sc);
void handle_signal(int sig, struct sigcontext *sc)
{
extern unsigned long current_stub_stack(void);
-void get_skas_faultinfo(int pid, struct faultinfo * fi)
+static void get_skas_faultinfo(int pid, struct faultinfo *fi)
{
int err;
/* Changed in make_umid, which is called during early boot */
static int umid_setup = 0;
-int __init make_umid(void)
+static int __init make_umid(void)
{
int fd, err;
char tmp[256];
#include "sysdep/ptrace.h"
/* Set during early boot */
-int host_has_cmov = 1;
+static int host_has_cmov = 1;
static jmp_buf cmov_test_return;
static void cmov_sigill_test_handler(int sig)
.previous
.align 4
-.globl csum_partial_copy_generic_i386
-
+
#ifndef CONFIG_X86_USE_PPRO_CHECKSUM
#define ARGBASE 16
#define FP 12
-
+
csum_partial_copy_generic_i386:
subl $4,%esp
pushl %edi
extern int modify_ldt(int func, void *ptr, unsigned long bytecount);
-long write_ldt_entry(struct mm_id * mm_idp, int func, struct user_desc * desc,
- void **addr, int done)
+static long write_ldt_entry(struct mm_id *mm_idp, int func,
+ struct user_desc *desc, void **addr, int done)
{
long res;
+++ /dev/null
-#############################################################################
-#
-# For a description of the syntax of this configuration file,
-# see Documentation/kbuild/kconfig-language.txt.
-#
-#############################################################################
-
-mainmenu "uClinux/v850 (w/o MMU) Kernel Configuration"
-
-config MMU
- bool
- default n
-config ZONE_DMA
- bool
- default y
-config RWSEM_GENERIC_SPINLOCK
- bool
- default y
-config RWSEM_XCHGADD_ALGORITHM
- bool
- default n
-config GENERIC_FIND_NEXT_BIT
- bool
- default y
-config GENERIC_HWEIGHT
- bool
- default y
-config GENERIC_CALIBRATE_DELAY
- bool
- default y
-
-config GENERIC_HARDIRQS
- bool
- default y
-
-config GENERIC_IRQ_PROBE
- bool
- default y
-
-config GENERIC_TIME
- bool
- default y
-
-config TIME_LOW_RES
- bool
- default y
-
-config ARCH_HAS_ILOG2_U32
- bool
- default n
-
-config ARCH_HAS_ILOG2_U64
- bool
- default n
-
-config ARCH_SUPPORTS_AOUT
- def_bool y
-
-# Turn off some random 386 crap that can affect device config
-config ISA
- bool
- default n
-config ISAPNP
- bool
- default n
-config EISA
- bool
- default n
-config MCA
- bool
- default n
-
-
-#############################################################################
-#### v850-specific config
-
-# Define the architecture
-config V850
- bool
- default y
- select HAVE_IDE
-
-menu "Processor type and features"
-
- choice
- prompt "Platform"
- default GDB
- config V850E_SIM
- bool "GDB"
- config RTE_CB_MA1
- bool "RTE-V850E/MA1-CB"
- config RTE_CB_NB85E
- bool "RTE-V850E/NB85E-CB"
- config RTE_CB_ME2
- bool "RTE-V850E/ME2-CB"
- config V850E_AS85EP1
- bool "AS85EP1"
- config V850E2_SIM85E2C
- bool "sim85e2c"
- config V850E2_SIM85E2S
- bool "sim85e2s"
- config V850E2_FPGA85E2C
- bool "NA85E2C-FPGA"
- config V850E2_ANNA
- bool "Anna"
- endchoice
-
- #### V850E processor-specific config
-
- # All CPUs currently supported use the v850e architecture
- config V850E
- bool
- default y
-
- # The RTE-V850E/MA1-CB is the only type of V850E/MA1 platform we
- # currently support
- config V850E_MA1
- bool
- depends on RTE_CB_MA1
- default y
- # Similarly for the RTE-V850E/NB85E-CB - V850E/TEG
- config V850E_TEG
- bool
- depends on RTE_CB_NB85E
- default y
- # ... and the RTE-V850E/ME2-CB - V850E/ME2
- config V850E_ME2
- bool
- depends on RTE_CB_ME2
- default y
-
-
- #### sim85e2-specific config
-
- config V850E2_SIM85E2
- bool
- depends on V850E2_SIM85E2C || V850E2_SIM85E2S
- default y
-
-
- #### V850E2 processor-specific config
-
- # V850E2 processors
- config V850E2
- bool
- depends on V850E2_SIM85E2 || V850E2_FPGA85E2C || V850E2_ANNA
- default y
-
-
- #### RTE-CB platform-specific config
-
- # Boards in the RTE-x-CB series
- config RTE_CB
- bool
- depends on RTE_CB_MA1 || RTE_CB_NB85E || RTE_CB_ME2
- default y
-
- config RTE_CB_MULTI
- bool
- # RTE_CB_NB85E can either have multi ROM support or not, but
- # other platforms (currently only RTE_CB_MA1) require it.
- prompt "Multi monitor ROM support" if RTE_CB_NB85E
- depends on RTE_CB_MA1 || RTE_CB_NB85E
- default y
-
- config RTE_CB_MULTI_DBTRAP
- bool "Pass illegal insn trap / dbtrap to kernel"
- depends on RTE_CB_MULTI
- default n
-
- config RTE_CB_MA1_KSRAM
- bool "Kernel in SRAM (limits size of kernel)"
- depends on RTE_CB_MA1 && RTE_CB_MULTI
- default n
-
- config RTE_MB_A_PCI
- bool "Mother-A PCI support"
- depends on RTE_CB
- default y
-
- # The GBUS is used to talk to the RTE-MOTHER-A board
- config RTE_GBUS_INT
- bool
- depends on RTE_MB_A_PCI
- default y
-
- # The only PCI bus we support is on the RTE-MOTHER-A board
- config PCI
- bool
- default RTE_MB_A_PCI
-
- #### Some feature-specific configs
-
- # Everything except for the GDB simulator uses the same interrupt controller
- config V850E_INTC
- bool
- default !V850E_SIM
-
- # Everything except for the various simulators uses the "Timer D" unit
- config V850E_TIMER_D
- bool
- default !V850E_SIM && !V850E2_SIM85E2
-
- # Cache control used on some v850e1 processors
- config V850E_CACHE
- bool
- default V850E_TEG || V850E_ME2
-
- # Cache control used on v850e2 processors; I think this should
- # actually apply to more, but currently only the SIM85E2S uses it
- config V850E2_CACHE
- bool
- default V850E2_SIM85E2S
-
- config NO_CACHE
- bool
- default !V850E_CACHE && !V850E2_CACHE
-
- # HZ depends on the platform
- config HZ
- int
- default 24 if V850E_SIM || V850E2_SIM85E2
- default 122 if V850E2_FPGA85E2C
- default 100
-
- #### Misc config
-
- config ROM_KERNEL
- bool "Kernel in ROM"
- depends on V850E2_ANNA || V850E_AS85EP1 || RTE_CB_ME2
-
- # Some platforms pre-zero memory, in which case the kernel doesn't need to
- config ZERO_BSS
- bool
- depends on !V850E2_SIM85E2C
- default y
-
- # The crappy-ass zone allocator requires that the start of allocatable
- # memory be aligned to the largest possible allocation.
- config FORCE_MAX_ZONEORDER
- int
- default 8 if V850E2_SIM85E2C || V850E2_FPGA85E2C
-
- config V850E_HIGHRES_TIMER
- bool "High resolution timer support"
- depends on V850E_TIMER_D
- config TIME_BOOTUP
- bool "Time bootup"
- depends on V850E_HIGHRES_TIMER
-
- config RESET_GUARD
- bool "Reset Guard"
-
-source "mm/Kconfig"
-
-endmenu
-
-
-#############################################################################
-
-source init/Kconfig
-
-#############################################################################
-
-menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
-
-# config PCI
-# bool "PCI support"
-# help
-# Support for PCI bus.
-
-source "drivers/pci/Kconfig"
-
-source "drivers/pcmcia/Kconfig"
-
-source "drivers/pci/hotplug/Kconfig"
-
-endmenu
-
-menu "Executable file formats"
-
-source "fs/Kconfig.binfmt"
-
-endmenu
-
-source "net/Kconfig"
-
-#############################################################################
-
-source "drivers/base/Kconfig"
-
-source drivers/mtd/Kconfig
-
-source drivers/parport/Kconfig
-
-#source drivers/pnp/Kconfig
-
-source drivers/block/Kconfig
-
-#############################################################################
-
-menu "Disk device support"
-
-source "drivers/ide/Kconfig"
-
-source "drivers/scsi/Kconfig"
-
-endmenu
-
-#############################################################################
-
-
-source "drivers/md/Kconfig"
-
-source "drivers/message/fusion/Kconfig"
-
-source "drivers/ieee1394/Kconfig"
-
-source "drivers/message/i2o/Kconfig"
-
-source "drivers/net/Kconfig"
-
-source "drivers/isdn/Kconfig"
-
-#source "drivers/telephony/Kconfig"
-
-#
-# input before char - char/joystick depends on it. As does USB.
-#
-source "drivers/input/Kconfig"
-
-source "drivers/char/Kconfig"
-
-#source drivers/misc/Config.in
-source "drivers/media/Kconfig"
-
-source "fs/Kconfig"
-
-source "drivers/video/Kconfig"
-
-source "sound/Kconfig"
-
-source "drivers/usb/Kconfig"
-
-source "arch/v850/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
-
-#############################################################################
+++ /dev/null
-menu "Kernel hacking"
-
-source "lib/Kconfig.debug"
-
-config NO_KERNEL_MSG
- bool "Suppress Kernel BUG Messages"
- help
- Do not output any debug BUG messages within the kernel.
-
-endmenu
+++ /dev/null
-#
-# arch/v850/Makefile
-#
-# Copyright (C) 2001,02,03,05 NEC Corporation
-# Copyright (C) 2001,02,03,05 Miles Bader <miles@gnu.org>
-#
-# This file is included by the global makefile so that you can add your own
-# architecture-specific flags and dependencies. Remember to do have actions
-# for "archclean" and "archdep" for cleaning up and making dependencies for
-# this architecture
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License. See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-
-arch_dir = arch/v850
-
-KBUILD_CFLAGS += -mv850e
-# r16 is a fixed pointer to the current task
-KBUILD_CFLAGS += -ffixed-r16 -mno-prolog-function
-KBUILD_CFLAGS += -fno-builtin
-KBUILD_CFLAGS += -D__linux__ -DUTS_SYSNAME=\"uClinux\"
-
-# By default, build a kernel that runs on the gdb v850 simulator.
-KBUILD_DEFCONFIG := sim_defconfig
-
-# This prevents the linker from consolidating the .gnu.linkonce.this_module
-# section into .text (which the v850 default linker script for -r does for
-# some reason)
-LDFLAGS_MODULE += --unique=.gnu.linkonce.this_module
-
-OBJCOPY_FLAGS_BLOB := -I binary -O elf32-little -B v850e
-
-
-head-y := $(arch_dir)/kernel/head.o $(arch_dir)/kernel/init_task.o
-core-y += $(arch_dir)/kernel/
-libs-y += $(arch_dir)/lib/
-
-
-# Deal with the initial contents of the root device
-ifdef ROOT_FS_IMAGE
-core-y += root_fs_image.o
-
-# Because the kernel build-system erases all explicit .o build rules, we
-# have to use an intermediate target to fool it into building for us.
-# This results in it being built anew each time, but that's alright.
-root_fs_image.o: root_fs_image_force
-
-root_fs_image_force: $(ROOT_FS_IMAGE)
- $(OBJCOPY) $(OBJCOPY_FLAGS_BLOB) --rename-section .data=.root,alloc,load,readonly,data,contents $< root_fs_image.o
-endif
-
-CLEAN_FILES += root_fs_image.o
+++ /dev/null
-This port to the NEC V850E processor supports the following platforms:
-
- "sim"
- The gdb v850e simulator (CONFIG_V850E_SIM).
-
- "rte-ma1-cb"
- The Midas labs RTE-V850E/MA1-CB and RTE-V850E/NB85E-CB evaluation
- boards (CONFIG_RTE_CB_MA1 and CONFIG_RTE_CB_NB85E). This support
- has only been tested when running with the Multi-debugger monitor
- ROM (for the Green Hills Multi debugger). The optional NEC
- Solution Gear RTE-MOTHER-A motherboard is also supported, which
- allows PCI boards to be used (CONFIG_RTE_MB_A_PCI).
-
- "rte-me2-cb"
- The Midas labs RTE-V850E/ME2-CB evaluation board (CONFIG_RTE_CB_ME2).
- This has only been tested using a kernel downloaded via an ICE
- connection using the Multi debugger. Support for the RTE-MOTHER-A is
- present, but hasn't been tested (unlike the other Midas labs cpu
- boards, the RTE-V850E/ME2-CB includes an ethernet adaptor).
-
- "as85ep1"
- The NEC AS85EP1 V850E evaluation chip/board (CONFIG_V850E_AS85EP1).
-
- "anna"
- The NEC `Anna' (board/chip) implementation of the V850E2 processor
- (CONFIG_V850E2_ANNA).
-
- "sim85e2c", "sim85e2s"
- The sim85e2c and sim85e2s simulators, which are verilog simulations
- of the V850E2 NA85E2C/NA85E2S cpu cores (CONFIG_V850E2_SIM85E2C and
- CONFIG_V850E2_SIM85E2S).
-
- "fpga85e2c"
- A FPGA implementation of the V850E2 NA85E2C cpu core
- (CONFIG_V850E2_FPGA85E2C).
-
-To get a default kernel configuration for a particular platform, you can
-use a <platform>_defconfig make target (e.g., "make rte-me2-cb_defconfig");
-to see which default configurations are possible, look in the directory
-"arch/v850/configs".
-
-Porting to anything with a V850E/MA1 or MA2 processor should be simple.
-See the file <asm-v850/machdep.h> and the files it includes for an example of
-how to add platform/chip-specific support.
+++ /dev/null
-#
-# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.13-uc0
-# Fri Sep 2 13:54:27 2005
-#
-# CONFIG_MMU is not set
-# CONFIG_UID16 is not set
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-# CONFIG_ISA is not set
-# CONFIG_ISAPNP is not set
-# CONFIG_EISA is not set
-# CONFIG_MCA is not set
-CONFIG_V850=y
-
-#
-# Processor type and features
-#
-# CONFIG_V850E_SIM is not set
-CONFIG_RTE_CB_MA1=y
-# CONFIG_RTE_CB_NB85E is not set
-# CONFIG_RTE_CB_ME2 is not set
-# CONFIG_V850E_AS85EP1 is not set
-# CONFIG_V850E2_SIM85E2C is not set
-# CONFIG_V850E2_SIM85E2S is not set
-# CONFIG_V850E2_FPGA85E2C is not set
-# CONFIG_V850E2_ANNA is not set
-CONFIG_V850E=y
-CONFIG_V850E_MA1=y
-CONFIG_RTE_CB=y
-CONFIG_RTE_CB_MULTI=y
-CONFIG_RTE_CB_MULTI_DBTRAP=y
-# CONFIG_RTE_CB_MA1_KSRAM is not set
-CONFIG_RTE_MB_A_PCI=y
-CONFIG_RTE_GBUS_INT=y
-CONFIG_PCI=y
-CONFIG_V850E_INTC=y
-CONFIG_V850E_TIMER_D=y
-# CONFIG_V850E_CACHE is not set
-# CONFIG_V850E2_CACHE is not set
-CONFIG_NO_CACHE=y
-CONFIG_ZERO_BSS=y
-# CONFIG_V850E_HIGHRES_TIMER is not set
-# CONFIG_RESET_GUARD is not set
-CONFIG_LARGE_ALLOCS=y
-CONFIG_FLATMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-
-#
-# Code maturity level options
-#
-# CONFIG_EXPERIMENTAL is not set
-CONFIG_CLEAN_COMPILE=y
-CONFIG_BROKEN_ON_SMP=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-
-#
-# General setup
-#
-CONFIG_LOCALVERSION=""
-# CONFIG_BSD_PROCESS_ACCT is not set
-# CONFIG_SYSCTL is not set
-# CONFIG_AUDIT is not set
-# CONFIG_HOTPLUG is not set
-CONFIG_KOBJECT_UEVENT=y
-# CONFIG_IKCONFIG is not set
-CONFIG_EMBEDDED=y
-# CONFIG_KALLSYMS is not set
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-# CONFIG_BASE_FULL is not set
-# CONFIG_FUTEX is not set
-# CONFIG_EPOLL is not set
-CONFIG_CC_OPTIMIZE_FOR_SIZE=y
-CONFIG_CC_ALIGN_FUNCTIONS=0
-CONFIG_CC_ALIGN_LABELS=0
-CONFIG_CC_ALIGN_LOOPS=0
-CONFIG_CC_ALIGN_JUMPS=0
-CONFIG_BASE_SMALL=1
-
-#
-# Loadable module support
-#
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-CONFIG_OBSOLETE_MODPARM=y
-# CONFIG_MODULE_SRCVERSION_ALL is not set
-CONFIG_KMOD=y
-
-#
-# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
-#
-# CONFIG_PCI_LEGACY_PROC is not set
-# CONFIG_PCI_NAMES is not set
-# CONFIG_PCI_DEBUG is not set
-
-#
-# PCCARD (PCMCIA/CardBus) support
-#
-# CONFIG_PCCARD is not set
-
-#
-# PCI Hotplug Support
-#
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_FLAT=y
-# CONFIG_BINFMT_ZFLAT is not set
-# CONFIG_BINFMT_SHARED_FLAT is not set
-# CONFIG_BINFMT_MISC is not set
-
-#
-# Networking
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-# CONFIG_PACKET is not set
-# CONFIG_UNIX is not set
-# CONFIG_NET_KEY is not set
-CONFIG_INET=y
-# CONFIG_IP_MULTICAST is not set
-# CONFIG_IP_ADVANCED_ROUTER is not set
-CONFIG_IP_FIB_HASH=y
-# CONFIG_IP_PNP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_SYN_COOKIES is not set
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_INET_TUNNEL is not set
-# CONFIG_IP_TCPDIAG is not set
-# CONFIG_IP_TCPDIAG_IPV6 is not set
-# CONFIG_TCP_CONG_ADVANCED is not set
-CONFIG_TCP_CONG_BIC=y
-# CONFIG_IPV6 is not set
-# CONFIG_NETFILTER is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_NET_SCHED is not set
-# CONFIG_NET_CLS_ROUTE is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-
-#
-# Generic Driver Options
-#
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-# CONFIG_FW_LOADER is not set
-# CONFIG_DEBUG_DRIVER is not set
-
-#
-# Memory Technology Devices (MTD)
-#
-CONFIG_MTD=y
-# CONFIG_MTD_DEBUG is not set
-# CONFIG_MTD_CONCAT is not set
-# CONFIG_MTD_PARTITIONS is not set
-
-#
-# User Modules And Translation Layers
-#
-# CONFIG_MTD_CHAR is not set
-CONFIG_MTD_BLOCK=y
-# CONFIG_FTL is not set
-# CONFIG_NFTL is not set
-# CONFIG_INFTL is not set
-
-#
-# RAM/ROM/Flash chip drivers
-#
-# CONFIG_MTD_CFI is not set
-# CONFIG_MTD_JEDECPROBE is not set
-CONFIG_MTD_MAP_BANK_WIDTH_1=y
-CONFIG_MTD_MAP_BANK_WIDTH_2=y
-CONFIG_MTD_MAP_BANK_WIDTH_4=y
-# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
-# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
-# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
-CONFIG_MTD_CFI_I1=y
-CONFIG_MTD_CFI_I2=y
-# CONFIG_MTD_CFI_I4 is not set
-# CONFIG_MTD_CFI_I8 is not set
-# CONFIG_MTD_RAM is not set
-# CONFIG_MTD_ROM is not set
-# CONFIG_MTD_ABSENT is not set
-
-#
-# Mapping drivers for chip access
-#
-# CONFIG_MTD_COMPLEX_MAPPINGS is not set
-# CONFIG_MTD_PLATRAM is not set
-
-#
-# Self-contained MTD device drivers
-#
-# CONFIG_MTD_PMC551 is not set
-CONFIG_MTD_SLRAM=y
-# CONFIG_MTD_PHRAM is not set
-# CONFIG_MTD_MTDRAM is not set
-# CONFIG_MTD_BLKMTD is not set
-
-#
-# Disk-On-Chip Device Drivers
-#
-# CONFIG_MTD_DOC2000 is not set
-# CONFIG_MTD_DOC2001 is not set
-# CONFIG_MTD_DOC2001PLUS is not set
-
-#
-# NAND Flash Device Drivers
-#
-# CONFIG_MTD_NAND is not set
-
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-
-#
-# Block devices
-#
-# CONFIG_BLK_DEV_FD is not set
-# CONFIG_BLK_CPQ_DA is not set
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-# CONFIG_BLK_DEV_COW_COMMON is not set
-# CONFIG_BLK_DEV_LOOP is not set
-# CONFIG_BLK_DEV_NBD is not set
-# CONFIG_BLK_DEV_SX8 is not set
-# CONFIG_BLK_DEV_RAM is not set
-CONFIG_BLK_DEV_RAM_COUNT=16
-CONFIG_INITRAMFS_SOURCE=""
-# CONFIG_CDROM_PKTCDVD is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-# CONFIG_IOSCHED_AS is not set
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
-# CONFIG_ATA_OVER_ETH is not set
-
-#
-# Disk device support
-#
-
-#
-# ATA/ATAPI/MFM/RLL support
-#
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-# CONFIG_SCSI is not set
-
-#
-# Multi-device support (RAID and LVM)
-#
-# CONFIG_MD is not set
-
-#
-# Fusion MPT device support
-#
-# CONFIG_FUSION is not set
-
-#
-# IEEE 1394 (FireWire) support
-#
-# CONFIG_IEEE1394 is not set
-
-#
-# I2O device support
-#
-# CONFIG_I2O is not set
-
-#
-# Network device support
-#
-CONFIG_NETDEVICES=y
-# CONFIG_DUMMY is not set
-# CONFIG_BONDING is not set
-# CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
-
-#
-# ARCnet devices
-#
-# CONFIG_ARCNET is not set
-
-#
-# Ethernet (10 or 100Mbit)
-#
-CONFIG_NET_ETHERNET=y
-CONFIG_MII=y
-# CONFIG_HAPPYMEAL is not set
-# CONFIG_SUNGEM is not set
-# CONFIG_NET_VENDOR_3COM is not set
-# CONFIG_NET_VENDOR_SMC is not set
-
-#
-# Tulip family network device support
-#
-# CONFIG_NET_TULIP is not set
-# CONFIG_HP100 is not set
-# CONFIG_NE2000 is not set
-CONFIG_NET_PCI=y
-# CONFIG_PCNET32 is not set
-# CONFIG_AMD8111_ETH is not set
-# CONFIG_ADAPTEC_STARFIRE is not set
-# CONFIG_DGRS is not set
-CONFIG_EEPRO100=y
-# CONFIG_E100 is not set
-# CONFIG_FEALNX is not set
-# CONFIG_NATSEMI is not set
-# CONFIG_NE2K_PCI is not set
-# CONFIG_8139TOO is not set
-# CONFIG_SIS900 is not set
-# CONFIG_EPIC100 is not set
-# CONFIG_SUNDANCE is not set
-# CONFIG_TLAN is not set
-# CONFIG_VIA_RHINE is not set
-
-#
-# Ethernet (1000 Mbit)
-#
-# CONFIG_ACENIC is not set
-# CONFIG_DL2K is not set
-# CONFIG_E1000 is not set
-# CONFIG_NS83820 is not set
-# CONFIG_HAMACHI is not set
-# CONFIG_R8169 is not set
-# CONFIG_SK98LIN is not set
-# CONFIG_VIA_VELOCITY is not set
-# CONFIG_TIGON3 is not set
-# CONFIG_BNX2 is not set
-
-#
-# Ethernet (10000 Mbit)
-#
-# CONFIG_IXGB is not set
-# CONFIG_S2IO is not set
-
-#
-# Token Ring devices
-#
-# CONFIG_TR is not set
-
-#
-# Wireless LAN (non-hamradio)
-#
-# CONFIG_NET_RADIO is not set
-
-#
-# Wan interfaces
-#
-# CONFIG_WAN is not set
-# CONFIG_FDDI is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-
-#
-# ISDN subsystem
-#
-# CONFIG_ISDN is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-
-#
-# Userland interfaces
-#
-# CONFIG_INPUT_MOUSEDEV is not set
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input Device Drivers
-#
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Hardware I/O ports
-#
-# CONFIG_SERIO is not set
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
-# CONFIG_VT is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_V850E_UART=y
-CONFIG_V850E_UART_CONSOLE=y
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-# CONFIG_SERIAL_JSM is not set
-# CONFIG_UNIX98_PTYS is not set
-# CONFIG_LEGACY_PTYS is not set
-
-#
-# IPMI
-#
-# CONFIG_IPMI_HANDLER is not set
-
-#
-# Watchdog Cards
-#
-# CONFIG_WATCHDOG is not set
-# CONFIG_RTC is not set
-# CONFIG_GEN_RTC is not set
-# CONFIG_DTLK is not set
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-
-#
-# Ftape, the floppy tape device driver
-#
-# CONFIG_DRM is not set
-# CONFIG_RAW_DRIVER is not set
-
-#
-# TPM devices
-#
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-
-#
-# Digital Video Broadcasting Devices
-#
-# CONFIG_DVB is not set
-
-#
-# File systems
-#
-# CONFIG_EXT2_FS is not set
-# CONFIG_EXT3_FS is not set
-# CONFIG_JBD is not set
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_FS_POSIX_ACL is not set
-
-#
-# XFS support
-#
-# CONFIG_XFS_FS is not set
-# CONFIG_MINIX_FS is not set
-CONFIG_ROMFS_FS=y
-# CONFIG_MAGIC_ROM_PTR is not set
-CONFIG_INOTIFY=y
-# CONFIG_QUOTA is not set
-CONFIG_DNOTIFY=y
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_MSDOS_FS is not set
-# CONFIG_VFAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_SYSFS=y
-# CONFIG_TMPFS is not set
-# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_JFFS_FS is not set
-# CONFIG_JFFS2_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-# CONFIG_NFS_V3_ACL is not set
-# CONFIG_NFSD is not set
-CONFIG_LOCKD=y
-CONFIG_LOCKD_V4=y
-CONFIG_NFS_COMMON=y
-CONFIG_SUNRPC=y
-# CONFIG_SMB_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
-# CONFIG_NLS is not set
-
-#
-# Graphics support
-#
-# CONFIG_FB is not set
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-
-#
-# USB support
-#
-CONFIG_USB_ARCH_HAS_HCD=y
-CONFIG_USB_ARCH_HAS_OHCI=y
-# CONFIG_USB is not set
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# Kernel hacking
-#
-# CONFIG_PRINTK_TIME is not set
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_MAGIC_SYSRQ is not set
-CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_SCHEDSTATS is not set
-# CONFIG_DEBUG_SLAB is not set
-# CONFIG_DEBUG_SPINLOCK is not set
-# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
-# CONFIG_DEBUG_KOBJECT is not set
-CONFIG_DEBUG_INFO=y
-# CONFIG_DEBUG_FS is not set
-# CONFIG_NO_KERNEL_MSG is not set
-
-#
-# Security options
-#
-# CONFIG_KEYS is not set
-# CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
-# CONFIG_CRYPTO is not set
-
-#
-# Hardware crypto devices
-#
-
-#
-# Library routines
-#
-# CONFIG_CRC_CCITT is not set
-# CONFIG_CRC32 is not set
-# CONFIG_LIBCRC32C is not set
+++ /dev/null
-#
-# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.13-uc0
-# Fri Sep 2 13:47:50 2005
-#
-# CONFIG_MMU is not set
-# CONFIG_UID16 is not set
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-# CONFIG_ISA is not set
-# CONFIG_ISAPNP is not set
-# CONFIG_EISA is not set
-# CONFIG_MCA is not set
-CONFIG_V850=y
-
-#
-# Processor type and features
-#
-# CONFIG_V850E_SIM is not set
-# CONFIG_RTE_CB_MA1 is not set
-# CONFIG_RTE_CB_NB85E is not set
-CONFIG_RTE_CB_ME2=y
-# CONFIG_V850E_AS85EP1 is not set
-# CONFIG_V850E2_SIM85E2C is not set
-# CONFIG_V850E2_SIM85E2S is not set
-# CONFIG_V850E2_FPGA85E2C is not set
-# CONFIG_V850E2_ANNA is not set
-CONFIG_V850E=y
-CONFIG_V850E_ME2=y
-CONFIG_RTE_CB=y
-# CONFIG_RTE_MB_A_PCI is not set
-# CONFIG_PCI is not set
-CONFIG_V850E_INTC=y
-CONFIG_V850E_TIMER_D=y
-CONFIG_V850E_CACHE=y
-# CONFIG_V850E2_CACHE is not set
-# CONFIG_NO_CACHE is not set
-# CONFIG_ROM_KERNEL is not set
-CONFIG_ZERO_BSS=y
-# CONFIG_V850E_HIGHRES_TIMER is not set
-# CONFIG_RESET_GUARD is not set
-CONFIG_LARGE_ALLOCS=y
-CONFIG_FLATMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-
-#
-# Code maturity level options
-#
-# CONFIG_EXPERIMENTAL is not set
-CONFIG_CLEAN_COMPILE=y
-CONFIG_BROKEN_ON_SMP=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-
-#
-# General setup
-#
-CONFIG_LOCALVERSION=""
-# CONFIG_BSD_PROCESS_ACCT is not set
-# CONFIG_SYSCTL is not set
-# CONFIG_HOTPLUG is not set
-# CONFIG_IKCONFIG is not set
-CONFIG_EMBEDDED=y
-# CONFIG_KALLSYMS is not set
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-# CONFIG_BASE_FULL is not set
-# CONFIG_FUTEX is not set
-# CONFIG_EPOLL is not set
-CONFIG_CC_OPTIMIZE_FOR_SIZE=y
-CONFIG_CC_ALIGN_FUNCTIONS=0
-CONFIG_CC_ALIGN_LABELS=0
-CONFIG_CC_ALIGN_LOOPS=0
-CONFIG_CC_ALIGN_JUMPS=0
-CONFIG_BASE_SMALL=1
-
-#
-# Loadable module support
-#
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-CONFIG_OBSOLETE_MODPARM=y
-# CONFIG_MODULE_SRCVERSION_ALL is not set
-CONFIG_KMOD=y
-
-#
-# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
-#
-
-#
-# PCCARD (PCMCIA/CardBus) support
-#
-# CONFIG_PCCARD is not set
-
-#
-# PCI Hotplug Support
-#
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_FLAT=y
-# CONFIG_BINFMT_ZFLAT is not set
-# CONFIG_BINFMT_SHARED_FLAT is not set
-# CONFIG_BINFMT_MISC is not set
-
-#
-# Networking
-#
-# CONFIG_NET is not set
-
-#
-# Generic Driver Options
-#
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-# CONFIG_FW_LOADER is not set
-# CONFIG_DEBUG_DRIVER is not set
-
-#
-# Memory Technology Devices (MTD)
-#
-CONFIG_MTD=y
-# CONFIG_MTD_DEBUG is not set
-# CONFIG_MTD_CONCAT is not set
-# CONFIG_MTD_PARTITIONS is not set
-
-#
-# User Modules And Translation Layers
-#
-# CONFIG_MTD_CHAR is not set
-CONFIG_MTD_BLOCK=y
-# CONFIG_FTL is not set
-# CONFIG_NFTL is not set
-# CONFIG_INFTL is not set
-
-#
-# RAM/ROM/Flash chip drivers
-#
-# CONFIG_MTD_CFI is not set
-# CONFIG_MTD_JEDECPROBE is not set
-CONFIG_MTD_MAP_BANK_WIDTH_1=y
-CONFIG_MTD_MAP_BANK_WIDTH_2=y
-CONFIG_MTD_MAP_BANK_WIDTH_4=y
-# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
-# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
-# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
-CONFIG_MTD_CFI_I1=y
-CONFIG_MTD_CFI_I2=y
-# CONFIG_MTD_CFI_I4 is not set
-# CONFIG_MTD_CFI_I8 is not set
-# CONFIG_MTD_RAM is not set
-# CONFIG_MTD_ROM is not set
-# CONFIG_MTD_ABSENT is not set
-
-#
-# Mapping drivers for chip access
-#
-# CONFIG_MTD_COMPLEX_MAPPINGS is not set
-# CONFIG_MTD_PLATRAM is not set
-
-#
-# Self-contained MTD device drivers
-#
-CONFIG_MTD_SLRAM=y
-# CONFIG_MTD_PHRAM is not set
-# CONFIG_MTD_MTDRAM is not set
-# CONFIG_MTD_BLKMTD is not set
-
-#
-# Disk-On-Chip Device Drivers
-#
-# CONFIG_MTD_DOC2000 is not set
-# CONFIG_MTD_DOC2001 is not set
-# CONFIG_MTD_DOC2001PLUS is not set
-
-#
-# NAND Flash Device Drivers
-#
-# CONFIG_MTD_NAND is not set
-
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-
-#
-# Block devices
-#
-# CONFIG_BLK_DEV_FD is not set
-# CONFIG_BLK_DEV_COW_COMMON is not set
-# CONFIG_BLK_DEV_LOOP is not set
-# CONFIG_BLK_DEV_RAM is not set
-CONFIG_BLK_DEV_RAM_COUNT=16
-CONFIG_INITRAMFS_SOURCE=""
-# CONFIG_CDROM_PKTCDVD is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-# CONFIG_IOSCHED_AS is not set
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
-
-#
-# Disk device support
-#
-
-#
-# ATA/ATAPI/MFM/RLL support
-#
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-# CONFIG_SCSI is not set
-
-#
-# Multi-device support (RAID and LVM)
-#
-# CONFIG_MD is not set
-
-#
-# Fusion MPT device support
-#
-# CONFIG_FUSION is not set
-
-#
-# IEEE 1394 (FireWire) support
-#
-
-#
-# I2O device support
-#
-
-#
-# Network device support
-#
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-
-#
-# ISDN subsystem
-#
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-
-#
-# Userland interfaces
-#
-# CONFIG_INPUT_MOUSEDEV is not set
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input Device Drivers
-#
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Hardware I/O ports
-#
-CONFIG_SERIO=y
-# CONFIG_SERIO_I8042 is not set
-# CONFIG_SERIO_SERPORT is not set
-# CONFIG_SERIO_LIBPS2 is not set
-# CONFIG_SERIO_RAW is not set
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
-# CONFIG_VT is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-CONFIG_SERIAL_8250=y
-CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_NR_UARTS=1
-# CONFIG_SERIAL_8250_EXTENDED is not set
-
-#
-# Non-8250 serial port support
-#
-# CONFIG_V850E_UART is not set
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-# CONFIG_UNIX98_PTYS is not set
-# CONFIG_LEGACY_PTYS is not set
-
-#
-# IPMI
-#
-# CONFIG_IPMI_HANDLER is not set
-
-#
-# Watchdog Cards
-#
-# CONFIG_WATCHDOG is not set
-# CONFIG_RTC is not set
-# CONFIG_GEN_RTC is not set
-# CONFIG_DTLK is not set
-# CONFIG_R3964 is not set
-
-#
-# Ftape, the floppy tape device driver
-#
-# CONFIG_RAW_DRIVER is not set
-
-#
-# TPM devices
-#
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-
-#
-# Digital Video Broadcasting Devices
-#
-
-#
-# File systems
-#
-# CONFIG_EXT2_FS is not set
-# CONFIG_EXT3_FS is not set
-# CONFIG_JBD is not set
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_FS_POSIX_ACL is not set
-
-#
-# XFS support
-#
-# CONFIG_XFS_FS is not set
-# CONFIG_MINIX_FS is not set
-CONFIG_ROMFS_FS=y
-# CONFIG_MAGIC_ROM_PTR is not set
-CONFIG_INOTIFY=y
-# CONFIG_QUOTA is not set
-CONFIG_DNOTIFY=y
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_MSDOS_FS is not set
-# CONFIG_VFAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_SYSFS=y
-# CONFIG_TMPFS is not set
-# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_JFFS_FS is not set
-# CONFIG_JFFS2_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
-# CONFIG_NLS is not set
-
-#
-# Graphics support
-#
-# CONFIG_FB is not set
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-
-#
-# USB support
-#
-# CONFIG_USB_ARCH_HAS_HCD is not set
-# CONFIG_USB_ARCH_HAS_OHCI is not set
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# Kernel hacking
-#
-# CONFIG_PRINTK_TIME is not set
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_MAGIC_SYSRQ is not set
-CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_SCHEDSTATS is not set
-# CONFIG_DEBUG_SLAB is not set
-# CONFIG_DEBUG_SPINLOCK is not set
-# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
-# CONFIG_DEBUG_KOBJECT is not set
-CONFIG_DEBUG_INFO=y
-# CONFIG_DEBUG_FS is not set
-# CONFIG_NO_KERNEL_MSG is not set
-
-#
-# Security options
-#
-# CONFIG_KEYS is not set
-# CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
-# CONFIG_CRYPTO is not set
-
-#
-# Hardware crypto devices
-#
-
-#
-# Library routines
-#
-# CONFIG_CRC_CCITT is not set
-# CONFIG_CRC32 is not set
-# CONFIG_LIBCRC32C is not set
+++ /dev/null
-#
-# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.13-uc0
-# Fri Sep 2 13:36:43 2005
-#
-# CONFIG_MMU is not set
-# CONFIG_UID16 is not set
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-# CONFIG_ISA is not set
-# CONFIG_ISAPNP is not set
-# CONFIG_EISA is not set
-# CONFIG_MCA is not set
-CONFIG_V850=y
-
-#
-# Processor type and features
-#
-CONFIG_V850E_SIM=y
-# CONFIG_RTE_CB_MA1 is not set
-# CONFIG_RTE_CB_NB85E is not set
-# CONFIG_RTE_CB_ME2 is not set
-# CONFIG_V850E_AS85EP1 is not set
-# CONFIG_V850E2_SIM85E2C is not set
-# CONFIG_V850E2_SIM85E2S is not set
-# CONFIG_V850E2_FPGA85E2C is not set
-# CONFIG_V850E2_ANNA is not set
-CONFIG_V850E=y
-# CONFIG_PCI is not set
-# CONFIG_V850E_INTC is not set
-# CONFIG_V850E_TIMER_D is not set
-# CONFIG_V850E_CACHE is not set
-# CONFIG_V850E2_CACHE is not set
-CONFIG_NO_CACHE=y
-CONFIG_ZERO_BSS=y
-# CONFIG_RESET_GUARD is not set
-CONFIG_LARGE_ALLOCS=y
-CONFIG_FLATMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-
-#
-# Code maturity level options
-#
-# CONFIG_EXPERIMENTAL is not set
-CONFIG_CLEAN_COMPILE=y
-CONFIG_BROKEN_ON_SMP=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-
-#
-# General setup
-#
-CONFIG_LOCALVERSION=""
-# CONFIG_BSD_PROCESS_ACCT is not set
-# CONFIG_SYSCTL is not set
-# CONFIG_HOTPLUG is not set
-# CONFIG_IKCONFIG is not set
-CONFIG_EMBEDDED=y
-# CONFIG_KALLSYMS is not set
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-# CONFIG_BASE_FULL is not set
-# CONFIG_FUTEX is not set
-# CONFIG_EPOLL is not set
-CONFIG_CC_OPTIMIZE_FOR_SIZE=y
-CONFIG_CC_ALIGN_FUNCTIONS=0
-CONFIG_CC_ALIGN_LABELS=0
-CONFIG_CC_ALIGN_LOOPS=0
-CONFIG_CC_ALIGN_JUMPS=0
-CONFIG_BASE_SMALL=1
-
-#
-# Loadable module support
-#
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-CONFIG_OBSOLETE_MODPARM=y
-# CONFIG_MODULE_SRCVERSION_ALL is not set
-CONFIG_KMOD=y
-
-#
-# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
-#
-
-#
-# PCCARD (PCMCIA/CardBus) support
-#
-# CONFIG_PCCARD is not set
-
-#
-# PCI Hotplug Support
-#
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_FLAT=y
-# CONFIG_BINFMT_ZFLAT is not set
-# CONFIG_BINFMT_SHARED_FLAT is not set
-# CONFIG_BINFMT_MISC is not set
-
-#
-# Networking
-#
-# CONFIG_NET is not set
-
-#
-# Generic Driver Options
-#
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-# CONFIG_FW_LOADER is not set
-# CONFIG_DEBUG_DRIVER is not set
-
-#
-# Memory Technology Devices (MTD)
-#
-CONFIG_MTD=y
-# CONFIG_MTD_DEBUG is not set
-# CONFIG_MTD_CONCAT is not set
-# CONFIG_MTD_PARTITIONS is not set
-
-#
-# User Modules And Translation Layers
-#
-# CONFIG_MTD_CHAR is not set
-CONFIG_MTD_BLOCK=y
-# CONFIG_FTL is not set
-# CONFIG_NFTL is not set
-# CONFIG_INFTL is not set
-
-#
-# RAM/ROM/Flash chip drivers
-#
-# CONFIG_MTD_CFI is not set
-# CONFIG_MTD_JEDECPROBE is not set
-CONFIG_MTD_MAP_BANK_WIDTH_1=y
-CONFIG_MTD_MAP_BANK_WIDTH_2=y
-CONFIG_MTD_MAP_BANK_WIDTH_4=y
-# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
-# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
-# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
-CONFIG_MTD_CFI_I1=y
-CONFIG_MTD_CFI_I2=y
-# CONFIG_MTD_CFI_I4 is not set
-# CONFIG_MTD_CFI_I8 is not set
-# CONFIG_MTD_RAM is not set
-# CONFIG_MTD_ROM is not set
-# CONFIG_MTD_ABSENT is not set
-
-#
-# Mapping drivers for chip access
-#
-# CONFIG_MTD_COMPLEX_MAPPINGS is not set
-# CONFIG_MTD_PLATRAM is not set
-
-#
-# Self-contained MTD device drivers
-#
-CONFIG_MTD_SLRAM=y
-# CONFIG_MTD_PHRAM is not set
-# CONFIG_MTD_MTDRAM is not set
-# CONFIG_MTD_BLKMTD is not set
-
-#
-# Disk-On-Chip Device Drivers
-#
-# CONFIG_MTD_DOC2000 is not set
-# CONFIG_MTD_DOC2001 is not set
-# CONFIG_MTD_DOC2001PLUS is not set
-
-#
-# NAND Flash Device Drivers
-#
-# CONFIG_MTD_NAND is not set
-
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-
-#
-# Block devices
-#
-# CONFIG_BLK_DEV_FD is not set
-# CONFIG_BLK_DEV_COW_COMMON is not set
-# CONFIG_BLK_DEV_LOOP is not set
-# CONFIG_BLK_DEV_RAM is not set
-CONFIG_BLK_DEV_RAM_COUNT=16
-CONFIG_INITRAMFS_SOURCE=""
-# CONFIG_CDROM_PKTCDVD is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-# CONFIG_IOSCHED_AS is not set
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
-
-#
-# Disk device support
-#
-
-#
-# ATA/ATAPI/MFM/RLL support
-#
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-# CONFIG_SCSI is not set
-
-#
-# Multi-device support (RAID and LVM)
-#
-# CONFIG_MD is not set
-
-#
-# Fusion MPT device support
-#
-# CONFIG_FUSION is not set
-
-#
-# IEEE 1394 (FireWire) support
-#
-
-#
-# I2O device support
-#
-
-#
-# Network device support
-#
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-
-#
-# ISDN subsystem
-#
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-
-#
-# Userland interfaces
-#
-# CONFIG_INPUT_MOUSEDEV is not set
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input Device Drivers
-#
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Hardware I/O ports
-#
-CONFIG_SERIO=y
-# CONFIG_SERIO_I8042 is not set
-# CONFIG_SERIO_SERPORT is not set
-# CONFIG_SERIO_LIBPS2 is not set
-# CONFIG_SERIO_RAW is not set
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
-# CONFIG_VT is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-# CONFIG_UNIX98_PTYS is not set
-# CONFIG_LEGACY_PTYS is not set
-
-#
-# IPMI
-#
-# CONFIG_IPMI_HANDLER is not set
-
-#
-# Watchdog Cards
-#
-# CONFIG_WATCHDOG is not set
-# CONFIG_RTC is not set
-# CONFIG_GEN_RTC is not set
-# CONFIG_DTLK is not set
-# CONFIG_R3964 is not set
-
-#
-# Ftape, the floppy tape device driver
-#
-# CONFIG_RAW_DRIVER is not set
-
-#
-# TPM devices
-#
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-
-#
-# Digital Video Broadcasting Devices
-#
-
-#
-# File systems
-#
-# CONFIG_EXT2_FS is not set
-# CONFIG_EXT3_FS is not set
-# CONFIG_JBD is not set
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_FS_POSIX_ACL is not set
-
-#
-# XFS support
-#
-# CONFIG_XFS_FS is not set
-# CONFIG_MINIX_FS is not set
-CONFIG_ROMFS_FS=y
-# CONFIG_MAGIC_ROM_PTR is not set
-CONFIG_INOTIFY=y
-# CONFIG_QUOTA is not set
-CONFIG_DNOTIFY=y
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_MSDOS_FS is not set
-# CONFIG_VFAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_SYSFS=y
-# CONFIG_TMPFS is not set
-# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_JFFS_FS is not set
-# CONFIG_JFFS2_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
-# CONFIG_NLS is not set
-
-#
-# Graphics support
-#
-# CONFIG_FB is not set
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-
-#
-# USB support
-#
-# CONFIG_USB_ARCH_HAS_HCD is not set
-# CONFIG_USB_ARCH_HAS_OHCI is not set
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# Kernel hacking
-#
-# CONFIG_PRINTK_TIME is not set
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_MAGIC_SYSRQ is not set
-CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_SCHEDSTATS is not set
-# CONFIG_DEBUG_SLAB is not set
-# CONFIG_DEBUG_SPINLOCK is not set
-# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
-# CONFIG_DEBUG_KOBJECT is not set
-CONFIG_DEBUG_INFO=y
-# CONFIG_DEBUG_FS is not set
-# CONFIG_NO_KERNEL_MSG is not set
-
-#
-# Security options
-#
-# CONFIG_KEYS is not set
-# CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
-# CONFIG_CRYPTO is not set
-
-#
-# Hardware crypto devices
-#
-
-#
-# Library routines
-#
-# CONFIG_CRC_CCITT is not set
-# CONFIG_CRC32 is not set
-# CONFIG_LIBCRC32C is not set
+++ /dev/null
-#
-# arch/v850/kernel/Makefile
-#
-# Copyright (C) 2001,02,03 NEC Electronics Corporation
-# Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License. See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-
-extra-y := head.o init_task.o vmlinux.lds
-
-obj-y += intv.o entry.o process.o syscalls.o time.o setup.o \
- signal.o irq.o mach.o ptrace.o bug.o
-obj-$(CONFIG_MODULES) += module.o v850_ksyms.o
-# chip-specific code
-obj-$(CONFIG_V850E_MA1) += ma.o
-obj-$(CONFIG_V850E_ME2) += me2.o
-obj-$(CONFIG_V850E_TEG) += teg.o
-obj-$(CONFIG_V850E_AS85EP1) += as85ep1.o
-obj-$(CONFIG_V850E2_ANNA) += anna.o
-# platform-specific code
-obj-$(CONFIG_V850E_SIM) += sim.o simcons.o
-obj-$(CONFIG_V850E2_SIM85E2) += sim85e2.o memcons.o
-obj-$(CONFIG_V850E2_FPGA85E2C) += fpga85e2c.o memcons.o
-obj-$(CONFIG_RTE_CB) += rte_cb.o rte_cb_leds.o
-obj-$(CONFIG_RTE_CB_MA1) += rte_ma1_cb.o
-obj-$(CONFIG_RTE_CB_ME2) += rte_me2_cb.o
-obj-$(CONFIG_RTE_CB_NB85E) += rte_nb85e_cb.o
-obj-$(CONFIG_RTE_CB_MULTI) += rte_cb_multi.o
-obj-$(CONFIG_RTE_MB_A_PCI) += rte_mb_a_pci.o
-obj-$(CONFIG_RTE_GBUS_INT) += gbus_int.o
-# feature-specific code
-obj-$(CONFIG_V850E_INTC) += v850e_intc.o
-obj-$(CONFIG_V850E_TIMER_D) += v850e_timer_d.o v850e_utils.o
-obj-$(CONFIG_V850E_CACHE) += v850e_cache.o
-obj-$(CONFIG_V850E2_CACHE) += v850e2_cache.o
-obj-$(CONFIG_V850E_HIGHRES_TIMER) += highres_timer.o
-obj-$(CONFIG_PROC_FS) += procfs.o
+++ /dev/null
-/* Linker script for the Midas labs Anna V850E2 evaluation board
- (CONFIG_V850E2_ANNA), with kernel in ROM (CONFIG_ROM_KERNEL). */
-
-MEMORY {
- /* 8MB of flash ROM. */
- ROM : ORIGIN = 0, LENGTH = 0x00800000
-
- /* 1MB of static RAM. This memory is mirrored 64 times. */
- SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE
- /* 64MB of DRAM. */
- SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
-}
-
-SECTIONS {
- ROMK_SECTIONS(ROM, SRAM)
-}
+++ /dev/null
-/*
- * arch/v850/kernel/anna.c -- Anna V850E2 evaluation chip/board
- *
- * Copyright (C) 2002,03 NEC Electronics Corporation
- * Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/bootmem.h>
-#include <linux/major.h>
-#include <linux/irq.h>
-
-#include <asm/machdep.h>
-#include <asm/atomic.h>
-#include <asm/page.h>
-#include <asm/v850e_timer_d.h>
-#include <asm/v850e_uart.h>
-
-#include "mach.h"
-
-
-/* SRAM and SDRAM are vaguely contiguous (with a big hole in between; see
- mach_reserve_bootmem for details); use both as one big area. */
-#define RAM_START SRAM_ADDR
-#define RAM_END (SDRAM_ADDR + SDRAM_SIZE)
-
-/* The bits of this port are connected to an 8-LED bar-graph. */
-#define LEDS_PORT 0
-
-
-static void anna_led_tick (void);
-
-
-void __init mach_early_init (void)
-{
- ANNA_ILBEN = 0;
-
- V850E2_CSC(0) = 0x402F;
- V850E2_CSC(1) = 0x4000;
- V850E2_BPC = 0;
- V850E2_BSC = 0xAAAA;
- V850E2_BEC = 0;
-
-#if 0
- V850E2_BHC = 0xFFFF; /* icache all memory, dcache all */
-#else
- V850E2_BHC = 0; /* cache no memory */
-#endif
- V850E2_BCT(0) = 0xB088;
- V850E2_BCT(1) = 0x0008;
- V850E2_DWC(0) = 0x0027;
- V850E2_DWC(1) = 0;
- V850E2_BCC = 0x0006;
- V850E2_ASC = 0;
- V850E2_LBS = 0x0089;
- V850E2_SCR(3) = 0x21A9;
- V850E2_RFS(3) = 0x8121;
-
- v850e_intc_disable_irqs ();
-}
-
-void __init mach_setup (char **cmdline)
-{
- ANNA_PORT_PM (LEDS_PORT) = 0; /* Make all LED pins output pins. */
- mach_tick = anna_led_tick;
-}
-
-void __init mach_get_physical_ram (unsigned long *ram_start,
- unsigned long *ram_len)
-{
- *ram_start = RAM_START;
- *ram_len = RAM_END - RAM_START;
-}
-
-void __init mach_reserve_bootmem ()
-{
- /* The space between SRAM and SDRAM is filled with duplicate
- images of SRAM. Prevent the kernel from using them. */
- reserve_bootmem (SRAM_ADDR + SRAM_SIZE,
- SDRAM_ADDR - (SRAM_ADDR + SRAM_SIZE),
- BOOTMEM_DEFAULT);
-}
-
-void mach_gettimeofday (struct timespec *tv)
-{
- tv->tv_sec = 0;
- tv->tv_nsec = 0;
-}
-
-void __init mach_sched_init (struct irqaction *timer_action)
-{
- /* Start hardware timer. */
- v850e_timer_d_configure (0, HZ);
- /* Install timer interrupt handler. */
- setup_irq (IRQ_INTCMD(0), timer_action);
-}
-
-static struct v850e_intc_irq_init irq_inits[] = {
- { "IRQ", 0, NUM_MACH_IRQS, 1, 7 },
- { "PIN", IRQ_INTP(0), IRQ_INTP_NUM, 1, 4 },
- { "CCC", IRQ_INTCCC(0), IRQ_INTCCC_NUM, 1, 5 },
- { "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 5 },
- { "DMA", IRQ_INTDMA(0), IRQ_INTDMA_NUM, 1, 2 },
- { "DMXER", IRQ_INTDMXER,1, 1, 2 },
- { "SRE", IRQ_INTSRE(0), IRQ_INTSRE_NUM, 3, 3 },
- { "SR", IRQ_INTSR(0), IRQ_INTSR_NUM, 3, 4 },
- { "ST", IRQ_INTST(0), IRQ_INTST_NUM, 3, 5 },
- { 0 }
-};
-#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1)
-
-static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS];
-
-void __init mach_init_irqs (void)
-{
- v850e_intc_init_irq_types (irq_inits, hw_itypes);
-}
-
-void machine_restart (char *__unused)
-{
-#ifdef CONFIG_RESET_GUARD
- disable_reset_guard ();
-#endif
- asm ("jmp r0"); /* Jump to the reset vector. */
-}
-
-void machine_halt (void)
-{
-#ifdef CONFIG_RESET_GUARD
- disable_reset_guard ();
-#endif
- local_irq_disable (); /* Ignore all interrupts. */
- ANNA_PORT_IO(LEDS_PORT) = 0xAA; /* Note that we halted. */
- for (;;)
- asm ("halt; nop; nop; nop; nop; nop");
-}
-
-void machine_power_off (void)
-{
- machine_halt ();
-}
-
-/* Called before configuring an on-chip UART. */
-void anna_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud)
-{
- /* The Anna connects some general-purpose I/O pins on the CPU to
- the RTS/CTS lines of UART 1's serial connection. I/O pins P07
- and P37 are RTS and CTS respectively. */
- if (chan == 1) {
- ANNA_PORT_PM(0) &= ~0x80; /* P07 in output mode */
- ANNA_PORT_PM(3) |= 0x80; /* P37 in input mode */
- }
-}
-
-/* Minimum and maximum bounds for the moving upper LED boundary in the
- clock tick display. We can't use the last bit because it's used for
- UART0's CTS output. */
-#define MIN_MAX_POS 0
-#define MAX_MAX_POS 6
-
-/* There are MAX_MAX_POS^2 - MIN_MAX_POS^2 cycles in the animation, so if
- we pick 6 and 0 as above, we get 49 cycles, which is when divided into
- the standard 100 value for HZ, gives us an almost 1s total time. */
-#define TICKS_PER_FRAME \
- (HZ / (MAX_MAX_POS * MAX_MAX_POS - MIN_MAX_POS * MIN_MAX_POS))
-
-static void anna_led_tick ()
-{
- static unsigned counter = 0;
-
- if (++counter == TICKS_PER_FRAME) {
- static int pos = 0, max_pos = MAX_MAX_POS, dir = 1;
-
- if (dir > 0 && pos == max_pos) {
- dir = -1;
- if (max_pos == MIN_MAX_POS)
- max_pos = MAX_MAX_POS;
- else
- max_pos--;
- } else {
- if (dir < 0 && pos == 0)
- dir = 1;
-
- if (pos + dir <= max_pos) {
- /* Each bit of port 0 has a LED. */
- clear_bit (pos, &ANNA_PORT_IO(LEDS_PORT));
- pos += dir;
- set_bit (pos, &ANNA_PORT_IO(LEDS_PORT));
- }
- }
-
- counter = 0;
- }
-}
+++ /dev/null
-/* Linker script for the Midas labs Anna V850E2 evaluation board
- (CONFIG_V850E2_ANNA). */
-
-MEMORY {
- /* 256KB of internal memory (followed by one mirror). */
- iMEM0 : ORIGIN = 0, LENGTH = 0x00040000
- /* 256KB of internal memory (followed by one mirror). */
- iMEM1 : ORIGIN = 0x00040000, LENGTH = 0x00040000
-
- /* 1MB of static RAM. This memory is mirrored 64 times. */
- SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE
- /* 64MB of DRAM. */
- SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
-}
-
-SECTIONS {
- .intv : { INTV_CONTENTS } > iMEM0
- .sram : { RAMK_KRAM_CONTENTS } > SRAM
- .root : { ROOT_FS_CONTENTS } > SDRAM
-}
+++ /dev/null
-/* Linker script for the NEC AS85EP1 V850E evaluation board
- (CONFIG_V850E_AS85EP1), with kernel in ROM (CONFIG_ROM_KERNEL). */
-
-MEMORY {
- /* 4MB of flash ROM. */
- ROM : ORIGIN = 0, LENGTH = 0x00400000
-
- /* 1MB of static RAM. */
- SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE
-
- /* About 58MB of DRAM. This can actually be at one of two
- positions, determined by jumper JP3; we have to use the first
- position because the second is partially out of processor
- instruction addressing range (though in the second position
- there's actually 64MB available). */
- SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
-}
-
-SECTIONS {
- ROMK_SECTIONS(ROM, SRAM)
-}
+++ /dev/null
-/*
- * arch/v850/kernel/as85ep1.c -- AS85EP1 V850E evaluation chip/board
- *
- * Copyright (C) 2002,03 NEC Electronics Corporation
- * Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/bootmem.h>
-#include <linux/major.h>
-#include <linux/irq.h>
-
-#include <asm/machdep.h>
-#include <asm/atomic.h>
-#include <asm/page.h>
-#include <asm/v850e_timer_d.h>
-#include <asm/v850e_uart.h>
-
-#include "mach.h"
-
-
-/* SRAM and SDRAM are vaguely contiguous (with a big hole in between; see
- mach_reserve_bootmem for details); use both as one big area. */
-#define RAM_START SRAM_ADDR
-#define RAM_END (SDRAM_ADDR + SDRAM_SIZE)
-
-/* The bits of this port are connected to an 8-LED bar-graph. */
-#define LEDS_PORT 4
-
-
-static void as85ep1_led_tick (void);
-
-extern char _intv_copy_src_start, _intv_copy_src_end;
-extern char _intv_copy_dst_start;
-
-
-void __init mach_early_init (void)
-{
-#ifndef CONFIG_ROM_KERNEL
- const u32 *src;
- register u32 *dst asm ("ep");
-#endif
-
- AS85EP1_CSC(0) = 0x0403;
- AS85EP1_BCT(0) = 0xB8B8;
- AS85EP1_DWC(0) = 0x0104;
- AS85EP1_BCC = 0x0012;
- AS85EP1_ASC = 0;
- AS85EP1_LBS = 0x00A9;
-
- AS85EP1_PORT_PMC(6) = 0xFF; /* valid A0,A1,A20-A25 */
- AS85EP1_PORT_PMC(7) = 0x0E; /* valid CS1-CS3 */
- AS85EP1_PORT_PMC(9) = 0xFF; /* valid D16-D23 */
- AS85EP1_PORT_PMC(10) = 0xFF; /* valid D24-D31 */
-
- AS85EP1_RFS(1) = 0x800c;
- AS85EP1_RFS(3) = 0x800c;
- AS85EP1_SCR(1) = 0x20A9;
- AS85EP1_SCR(3) = 0x20A9;
-
-#ifndef CONFIG_ROM_KERNEL
- /* The early chip we have is buggy, and writing the interrupt
- vectors into low RAM may screw up, so for non-ROM kernels, we
- only rely on the reset vector being downloaded, and copy the
- rest of the interrupt vectors into place here. The specific bug
- is that writing address N, where (N & 0x10) == 0x10, will _also_
- write to address (N - 0x10). We avoid this (effectively) by
- writing in 16-byte chunks backwards from the end. */
-
- AS85EP1_IRAMM = 0x3; /* "write-mode" for the internal instruction memory */
-
- src = (u32 *)(((u32)&_intv_copy_src_end - 1) & ~0xF);
- dst = (u32 *)&_intv_copy_dst_start
- + (src - (u32 *)&_intv_copy_src_start);
- do {
- u32 t0 = src[0], t1 = src[1], t2 = src[2], t3 = src[3];
- dst[0] = t0; dst[1] = t1; dst[2] = t2; dst[3] = t3;
- dst -= 4;
- src -= 4;
- } while (src > (u32 *)&_intv_copy_src_start);
-
- AS85EP1_IRAMM = 0x0; /* "read-mode" for the internal instruction memory */
-#endif /* !CONFIG_ROM_KERNEL */
-
- v850e_intc_disable_irqs ();
-}
-
-void __init mach_setup (char **cmdline)
-{
- AS85EP1_PORT_PMC (LEDS_PORT) = 0; /* Make the LEDs port an I/O port. */
- AS85EP1_PORT_PM (LEDS_PORT) = 0; /* Make all the bits output pins. */
- mach_tick = as85ep1_led_tick;
-}
-
-void __init mach_get_physical_ram (unsigned long *ram_start,
- unsigned long *ram_len)
-{
- *ram_start = RAM_START;
- *ram_len = RAM_END - RAM_START;
-}
-
-/* Convenience macros. */
-#define SRAM_END (SRAM_ADDR + SRAM_SIZE)
-#define SDRAM_END (SDRAM_ADDR + SDRAM_SIZE)
-
-void __init mach_reserve_bootmem ()
-{
- if (SDRAM_ADDR < RAM_END && SDRAM_ADDR > RAM_START)
- /* We can't use the space between SRAM and SDRAM, so
- prevent the kernel from trying. */
- reserve_bootmem(SRAM_END, SDRAM_ADDR - SRAM_END,
- BOOTMEM_DEFAULT);
-}
-
-void mach_gettimeofday (struct timespec *tv)
-{
- tv->tv_sec = 0;
- tv->tv_nsec = 0;
-}
-
-void __init mach_sched_init (struct irqaction *timer_action)
-{
- /* Start hardware timer. */
- v850e_timer_d_configure (0, HZ);
- /* Install timer interrupt handler. */
- setup_irq (IRQ_INTCMD(0), timer_action);
-}
-
-static struct v850e_intc_irq_init irq_inits[] = {
- { "IRQ", 0, NUM_MACH_IRQS, 1, 7 },
- { "CCC", IRQ_INTCCC(0), IRQ_INTCCC_NUM, 1, 5 },
- { "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 5 },
- { "SRE", IRQ_INTSRE(0), IRQ_INTSRE_NUM, 3, 3 },
- { "SR", IRQ_INTSR(0), IRQ_INTSR_NUM, 3, 4 },
- { "ST", IRQ_INTST(0), IRQ_INTST_NUM, 3, 5 },
- { 0 }
-};
-#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1)
-
-static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS];
-
-void __init mach_init_irqs (void)
-{
- v850e_intc_init_irq_types (irq_inits, hw_itypes);
-}
-
-void machine_restart (char *__unused)
-{
-#ifdef CONFIG_RESET_GUARD
- disable_reset_guard ();
-#endif
- asm ("jmp r0"); /* Jump to the reset vector. */
-}
-
-void machine_halt (void)
-{
-#ifdef CONFIG_RESET_GUARD
- disable_reset_guard ();
-#endif
- local_irq_disable (); /* Ignore all interrupts. */
- AS85EP1_PORT_IO (LEDS_PORT) = 0xAA; /* Note that we halted. */
- for (;;)
- asm ("halt; nop; nop; nop; nop; nop");
-}
-
-void machine_power_off (void)
-{
- machine_halt ();
-}
-
-/* Called before configuring an on-chip UART. */
-void as85ep1_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud)
-{
- /* Make the shared uart/port pins be uart pins. */
- AS85EP1_PORT_PMC(3) |= (0x5 << chan);
-
- /* The AS85EP1 connects some general-purpose I/O pins on the CPU to
- the RTS/CTS lines of UART 1's serial connection. I/O pins P53
- and P54 are RTS and CTS respectively. */
- if (chan == 1) {
- /* Put P53 & P54 in I/O port mode. */
- AS85EP1_PORT_PMC(5) &= ~0x18;
- /* Make P53 an output, and P54 an input. */
- AS85EP1_PORT_PM(5) |= 0x10;
- }
-}
-
-/* Minimum and maximum bounds for the moving upper LED boundary in the
- clock tick display. */
-#define MIN_MAX_POS 0
-#define MAX_MAX_POS 7
-
-/* There are MAX_MAX_POS^2 - MIN_MAX_POS^2 cycles in the animation, so if
- we pick 6 and 0 as above, we get 49 cycles, which is when divided into
- the standard 100 value for HZ, gives us an almost 1s total time. */
-#define TICKS_PER_FRAME \
- (HZ / (MAX_MAX_POS * MAX_MAX_POS - MIN_MAX_POS * MIN_MAX_POS))
-
-static void as85ep1_led_tick ()
-{
- static unsigned counter = 0;
-
- if (++counter == TICKS_PER_FRAME) {
- static int pos = 0, max_pos = MAX_MAX_POS, dir = 1;
-
- if (dir > 0 && pos == max_pos) {
- dir = -1;
- if (max_pos == MIN_MAX_POS)
- max_pos = MAX_MAX_POS;
- else
- max_pos--;
- } else {
- if (dir < 0 && pos == 0)
- dir = 1;
-
- if (pos + dir <= max_pos) {
- /* Each bit of port 0 has a LED. */
- set_bit (pos, &AS85EP1_PORT_IO(LEDS_PORT));
- pos += dir;
- clear_bit (pos, &AS85EP1_PORT_IO(LEDS_PORT));
- }
- }
-
- counter = 0;
- }
-}
+++ /dev/null
-/* Linker script for the NEC AS85EP1 V850E evaluation board
- (CONFIG_V850E_AS85EP1). */
-
-MEMORY {
- /* 1MB of internal instruction memory. */
- iMEM0 : ORIGIN = 0, LENGTH = 0x00100000
-
- /* 1MB of static RAM. */
- SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE
-
- /* About 58MB of DRAM. This can actually be at one of two
- positions, determined by jump JP3; we have to use the first
- position because the second is partially out of processor
- instruction addressing range (though in the second position
- there's actually 64MB available). */
- SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
-}
-
-SECTIONS {
- .resetv : {
- __intv_start = . ;
- *(.intv.reset) /* Reset vector */
- } > iMEM0
-
- .sram : {
- RAMK_KRAM_CONTENTS
-
- /* We stick most of the interrupt vectors here; they'll be
- copied into the proper location by the early init code (we
- can't put them directly in the right place because of
- hardware bugs). The vectors shouldn't need to be
- relocated, so we don't have to use `> ... AT> ...' to
- split the load/vm addresses (and we can't because of
- problems with the loader). */
- . = ALIGN (0x10) ;
- __intv_copy_src_start = . ;
- *(.intv.common) /* Vectors common to all v850e proc. */
- *(.intv.mach) /* Machine-specific int. vectors. */
- . = ALIGN (0x10) ;
- __intv_copy_src_end = . ;
- } > SRAM
-
- /* Where we end up putting the vectors. */
- __intv_copy_dst_start = 0x10 ;
- __intv_copy_dst_end = __intv_copy_dst_start + (__intv_copy_src_end - __intv_copy_src_start) ;
- __intv_end = __intv_copy_dst_end ;
-
- .root : { ROOT_FS_CONTENTS } > SDRAM
-}
+++ /dev/null
-/*
- * This program is used to generate definitions needed by
- * assembly language modules.
- *
- * We use the technique used in the OSF Mach kernel code:
- * generate asm statements containing #defines,
- * compile this file to assembler, and then extract the
- * #defines from the assembly-language output.
- */
-
-#include <linux/stddef.h>
-#include <linux/sched.h>
-#include <linux/kernel_stat.h>
-#include <linux/ptrace.h>
-#include <linux/hardirq.h>
-#include <linux/kbuild.h>
-
-#include <asm/irq.h>
-#include <asm/errno.h>
-
-int main (void)
-{
- /* offsets into the task struct */
- DEFINE (TASK_STATE, offsetof (struct task_struct, state));
- DEFINE (TASK_FLAGS, offsetof (struct task_struct, flags));
- DEFINE (TASK_PTRACE, offsetof (struct task_struct, ptrace));
- DEFINE (TASK_BLOCKED, offsetof (struct task_struct, blocked));
- DEFINE (TASK_THREAD, offsetof (struct task_struct, thread));
- DEFINE (TASK_THREAD_INFO, offsetof (struct task_struct, stack));
- DEFINE (TASK_MM, offsetof (struct task_struct, mm));
- DEFINE (TASK_ACTIVE_MM, offsetof (struct task_struct, active_mm));
- DEFINE (TASK_PID, offsetof (struct task_struct, pid));
-
- /* offsets into the kernel_stat struct */
- DEFINE (STAT_IRQ, offsetof (struct kernel_stat, irqs));
-
-
- /* signal defines */
- DEFINE (SIGSEGV, SIGSEGV);
- DEFINE (SEGV_MAPERR, SEGV_MAPERR);
- DEFINE (SIGTRAP, SIGTRAP);
- DEFINE (SIGCHLD, SIGCHLD);
- DEFINE (SIGILL, SIGILL);
- DEFINE (TRAP_TRACE, TRAP_TRACE);
-
- /* ptrace flag bits */
- DEFINE (PT_PTRACED, PT_PTRACED);
- DEFINE (PT_DTRACE, PT_DTRACE);
-
- /* error values */
- DEFINE (ENOSYS, ENOSYS);
-
- /* clone flag bits */
- DEFINE (CLONE_VFORK, CLONE_VFORK);
- DEFINE (CLONE_VM, CLONE_VM);
-
- return 0;
-}
+++ /dev/null
-/*
- * arch/v850/kernel/bug.c -- Bug reporting functions
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/reboot.h>
-#include <linux/sched.h>
-#include <linux/module.h>
-
-#include <asm/errno.h>
-#include <asm/ptrace.h>
-#include <asm/processor.h>
-#include <asm/current.h>
-
-/* We should use __builtin_return_address, but it doesn't work in gcc-2.90
- (which is currently our standard compiler on the v850). */
-#define ret_addr() ({ register u32 lp asm ("lp"); lp; })
-#define stack_addr() ({ register u32 sp asm ("sp"); sp; })
-
-void __bug ()
-{
- printk (KERN_CRIT "kernel BUG at PC 0x%x (SP ~0x%x)!\n",
- ret_addr() - 4, /* - 4 for `jarl' */
- stack_addr());
- machine_halt ();
-}
-
-int bad_trap (int trap_num, struct pt_regs *regs)
-{
- printk (KERN_CRIT
- "unimplemented trap %d called at 0x%08lx, pid %d!\n",
- trap_num, regs->pc, current->pid);
- return -ENOSYS;
-}
-
-#ifdef CONFIG_RESET_GUARD
-void unexpected_reset (unsigned long ret_addr, unsigned long kmode,
- struct task_struct *task, unsigned long sp)
-{
- printk (KERN_CRIT
- "unexpected reset in %s mode, pid %d"
- " (ret_addr = 0x%lx, sp = 0x%lx)\n",
- kmode ? "kernel" : "user",
- task ? task->pid : -1,
- ret_addr, sp);
-
- machine_halt ();
-}
-#endif /* CONFIG_RESET_GUARD */
-
-\f
-
-struct spec_reg_name {
- const char *name;
- int gpr;
-};
-
-struct spec_reg_name spec_reg_names[] = {
- { "sp", GPR_SP },
- { "gp", GPR_GP },
- { "tp", GPR_TP },
- { "ep", GPR_EP },
- { "lp", GPR_LP },
- { 0, 0 }
-};
-
-void show_regs (struct pt_regs *regs)
-{
- int gpr_base, gpr_offs;
-
- printk (" pc 0x%08lx psw 0x%08lx kernel_mode %d\n",
- regs->pc, regs->psw, regs->kernel_mode);
- printk (" ctpc 0x%08lx ctpsw 0x%08lx ctbp 0x%08lx\n",
- regs->ctpc, regs->ctpsw, regs->ctbp);
-
- for (gpr_base = 0; gpr_base < NUM_GPRS; gpr_base += 4) {
- for (gpr_offs = 0; gpr_offs < 4; gpr_offs++) {
- int gpr = gpr_base + gpr_offs;
- long val = regs->gpr[gpr];
- struct spec_reg_name *srn;
-
- for (srn = spec_reg_names; srn->name; srn++)
- if (srn->gpr == gpr)
- break;
-
- if (srn->name)
- printk ("%7s 0x%08lx", srn->name, val);
- else
- printk (" r%02d 0x%08lx", gpr, val);
- }
-
- printk ("\n");
- }
-}
-
-/*
- * TASK is a pointer to the task whose backtrace we want to see (or NULL
- * for current task), SP is the stack pointer of the first frame that
- * should be shown in the back trace (or NULL if the entire call-chain of
- * the task should be shown).
- */
-void show_stack (struct task_struct *task, unsigned long *sp)
-{
- unsigned long addr, end;
-
- if (sp)
- addr = (unsigned long)sp;
- else if (task)
- addr = task_sp (task);
- else
- addr = stack_addr ();
-
- addr = addr & ~3;
- end = (addr + THREAD_SIZE - 1) & THREAD_MASK;
-
- while (addr < end) {
- printk ("%8lX: ", addr);
- while (addr < end) {
- printk (" %8lX", *(unsigned long *)addr);
- addr += sizeof (unsigned long);
- if (! (addr & 0xF))
- break;
- }
- printk ("\n");
- }
-}
-
-void dump_stack ()
-{
- show_stack (0, 0);
-}
-
-EXPORT_SYMBOL(dump_stack);
+++ /dev/null
-/*
- * arch/v850/kernel/entry.S -- Low-level system-call handling, trap handlers,
- * and context-switching
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/sys.h>
-
-#include <asm/entry.h>
-#include <asm/current.h>
-#include <asm/thread_info.h>
-#include <asm/clinkage.h>
-#include <asm/processor.h>
-#include <asm/irq.h>
-#include <asm/errno.h>
-
-#include <asm/asm-offsets.h>
-
-
-/* Make a slightly more convenient alias for C_SYMBOL_NAME. */
-#define CSYM C_SYMBOL_NAME
-
-
-/* The offset of the struct pt_regs in a state-save-frame on the stack. */
-#define PTO STATE_SAVE_PT_OFFSET
-
-
-/* Save argument registers to the state-save-frame pointed to by EP. */
-#define SAVE_ARG_REGS \
- sst.w r6, PTO+PT_GPR(6)[ep]; \
- sst.w r7, PTO+PT_GPR(7)[ep]; \
- sst.w r8, PTO+PT_GPR(8)[ep]; \
- sst.w r9, PTO+PT_GPR(9)[ep]
-/* Restore argument registers from the state-save-frame pointed to by EP. */
-#define RESTORE_ARG_REGS \
- sld.w PTO+PT_GPR(6)[ep], r6; \
- sld.w PTO+PT_GPR(7)[ep], r7; \
- sld.w PTO+PT_GPR(8)[ep], r8; \
- sld.w PTO+PT_GPR(9)[ep], r9
-
-/* Save value return registers to the state-save-frame pointed to by EP. */
-#define SAVE_RVAL_REGS \
- sst.w r10, PTO+PT_GPR(10)[ep]; \
- sst.w r11, PTO+PT_GPR(11)[ep]
-/* Restore value return registers from the state-save-frame pointed to by EP. */
-#define RESTORE_RVAL_REGS \
- sld.w PTO+PT_GPR(10)[ep], r10; \
- sld.w PTO+PT_GPR(11)[ep], r11
-
-
-#define SAVE_CALL_CLOBBERED_REGS_BEFORE_ARGS \
- sst.w r1, PTO+PT_GPR(1)[ep]; \
- sst.w r5, PTO+PT_GPR(5)[ep]
-#define SAVE_CALL_CLOBBERED_REGS_AFTER_RVAL \
- sst.w r12, PTO+PT_GPR(12)[ep]; \
- sst.w r13, PTO+PT_GPR(13)[ep]; \
- sst.w r14, PTO+PT_GPR(14)[ep]; \
- sst.w r15, PTO+PT_GPR(15)[ep]; \
- sst.w r16, PTO+PT_GPR(16)[ep]; \
- sst.w r17, PTO+PT_GPR(17)[ep]; \
- sst.w r18, PTO+PT_GPR(18)[ep]; \
- sst.w r19, PTO+PT_GPR(19)[ep]
-#define RESTORE_CALL_CLOBBERED_REGS_BEFORE_ARGS \
- sld.w PTO+PT_GPR(1)[ep], r1; \
- sld.w PTO+PT_GPR(5)[ep], r5
-#define RESTORE_CALL_CLOBBERED_REGS_AFTER_RVAL \
- sld.w PTO+PT_GPR(12)[ep], r12; \
- sld.w PTO+PT_GPR(13)[ep], r13; \
- sld.w PTO+PT_GPR(14)[ep], r14; \
- sld.w PTO+PT_GPR(15)[ep], r15; \
- sld.w PTO+PT_GPR(16)[ep], r16; \
- sld.w PTO+PT_GPR(17)[ep], r17; \
- sld.w PTO+PT_GPR(18)[ep], r18; \
- sld.w PTO+PT_GPR(19)[ep], r19
-
-/* Save `call clobbered' registers to the state-save-frame pointed to by EP. */
-#define SAVE_CALL_CLOBBERED_REGS \
- SAVE_CALL_CLOBBERED_REGS_BEFORE_ARGS; \
- SAVE_ARG_REGS; \
- SAVE_RVAL_REGS; \
- SAVE_CALL_CLOBBERED_REGS_AFTER_RVAL
-/* Restore `call clobbered' registers from the state-save-frame pointed to
- by EP. */
-#define RESTORE_CALL_CLOBBERED_REGS \
- RESTORE_CALL_CLOBBERED_REGS_BEFORE_ARGS; \
- RESTORE_ARG_REGS; \
- RESTORE_RVAL_REGS; \
- RESTORE_CALL_CLOBBERED_REGS_AFTER_RVAL
-
-/* Save `call clobbered' registers except for the return-value registers
- to the state-save-frame pointed to by EP. */
-#define SAVE_CALL_CLOBBERED_REGS_NO_RVAL \
- SAVE_CALL_CLOBBERED_REGS_BEFORE_ARGS; \
- SAVE_ARG_REGS; \
- SAVE_CALL_CLOBBERED_REGS_AFTER_RVAL
-/* Restore `call clobbered' registers except for the return-value registers
- from the state-save-frame pointed to by EP. */
-#define RESTORE_CALL_CLOBBERED_REGS_NO_RVAL \
- RESTORE_CALL_CLOBBERED_REGS_BEFORE_ARGS; \
- RESTORE_ARG_REGS; \
- RESTORE_CALL_CLOBBERED_REGS_AFTER_RVAL
-
-/* Save `call saved' registers to the state-save-frame pointed to by EP. */
-#define SAVE_CALL_SAVED_REGS \
- sst.w r2, PTO+PT_GPR(2)[ep]; \
- sst.w r20, PTO+PT_GPR(20)[ep]; \
- sst.w r21, PTO+PT_GPR(21)[ep]; \
- sst.w r22, PTO+PT_GPR(22)[ep]; \
- sst.w r23, PTO+PT_GPR(23)[ep]; \
- sst.w r24, PTO+PT_GPR(24)[ep]; \
- sst.w r25, PTO+PT_GPR(25)[ep]; \
- sst.w r26, PTO+PT_GPR(26)[ep]; \
- sst.w r27, PTO+PT_GPR(27)[ep]; \
- sst.w r28, PTO+PT_GPR(28)[ep]; \
- sst.w r29, PTO+PT_GPR(29)[ep]
-/* Restore `call saved' registers from the state-save-frame pointed to by EP. */
-#define RESTORE_CALL_SAVED_REGS \
- sld.w PTO+PT_GPR(2)[ep], r2; \
- sld.w PTO+PT_GPR(20)[ep], r20; \
- sld.w PTO+PT_GPR(21)[ep], r21; \
- sld.w PTO+PT_GPR(22)[ep], r22; \
- sld.w PTO+PT_GPR(23)[ep], r23; \
- sld.w PTO+PT_GPR(24)[ep], r24; \
- sld.w PTO+PT_GPR(25)[ep], r25; \
- sld.w PTO+PT_GPR(26)[ep], r26; \
- sld.w PTO+PT_GPR(27)[ep], r27; \
- sld.w PTO+PT_GPR(28)[ep], r28; \
- sld.w PTO+PT_GPR(29)[ep], r29
-
-
-/* Save the PC stored in the special register SAVEREG to the state-save-frame
- pointed to by EP. r19 is clobbered. */
-#define SAVE_PC(savereg) \
- stsr SR_ ## savereg, r19; \
- sst.w r19, PTO+PT_PC[ep]
-/* Restore the PC from the state-save-frame pointed to by EP, to the special
- register SAVEREG. LP is clobbered (it is used as a scratch register
- because the POP_STATE macro restores it, and this macro is usually used
- inside POP_STATE). */
-#define RESTORE_PC(savereg) \
- sld.w PTO+PT_PC[ep], lp; \
- ldsr lp, SR_ ## savereg
-/* Save the PSW register stored in the special register SAVREG to the
- state-save-frame pointed to by EP. r19 is clobbered. */
-#define SAVE_PSW(savereg) \
- stsr SR_ ## savereg, r19; \
- sst.w r19, PTO+PT_PSW[ep]
-/* Restore the PSW register from the state-save-frame pointed to by EP, to
- the special register SAVEREG. LP is clobbered (it is used as a scratch
- register because the POP_STATE macro restores it, and this macro is
- usually used inside POP_STATE). */
-#define RESTORE_PSW(savereg) \
- sld.w PTO+PT_PSW[ep], lp; \
- ldsr lp, SR_ ## savereg
-
-/* Save CTPC/CTPSW/CTBP registers to the state-save-frame pointed to by REG.
- r19 is clobbered. */
-#define SAVE_CT_REGS \
- stsr SR_CTPC, r19; \
- sst.w r19, PTO+PT_CTPC[ep]; \
- stsr SR_CTPSW, r19; \
- sst.w r19, PTO+PT_CTPSW[ep]; \
- stsr SR_CTBP, r19; \
- sst.w r19, PTO+PT_CTBP[ep]
-/* Restore CTPC/CTPSW/CTBP registers from the state-save-frame pointed to by EP.
- LP is clobbered (it is used as a scratch register because the POP_STATE
- macro restores it, and this macro is usually used inside POP_STATE). */
-#define RESTORE_CT_REGS \
- sld.w PTO+PT_CTPC[ep], lp; \
- ldsr lp, SR_CTPC; \
- sld.w PTO+PT_CTPSW[ep], lp; \
- ldsr lp, SR_CTPSW; \
- sld.w PTO+PT_CTBP[ep], lp; \
- ldsr lp, SR_CTBP
-
-
-/* Push register state, except for the stack pointer, on the stack in the
- form of a state-save-frame (plus some extra padding), in preparation for
- a system call. This macro makes sure that the EP, GP, and LP
- registers are saved, and TYPE identifies the set of extra registers to
- be saved as well. Also copies (the new value of) SP to EP. */
-#define PUSH_STATE(type) \
- addi -STATE_SAVE_SIZE, sp, sp; /* Make room on the stack. */ \
- st.w ep, PTO+PT_GPR(GPR_EP)[sp]; \
- mov sp, ep; \
- sst.w gp, PTO+PT_GPR(GPR_GP)[ep]; \
- sst.w lp, PTO+PT_GPR(GPR_LP)[ep]; \
- type ## _STATE_SAVER
-/* Pop a register state pushed by PUSH_STATE, except for the stack pointer,
- from the stack. */
-#define POP_STATE(type) \
- mov sp, ep; \
- type ## _STATE_RESTORER; \
- sld.w PTO+PT_GPR(GPR_GP)[ep], gp; \
- sld.w PTO+PT_GPR(GPR_LP)[ep], lp; \
- sld.w PTO+PT_GPR(GPR_EP)[ep], ep; \
- addi STATE_SAVE_SIZE, sp, sp /* Clean up our stack space. */
-
-
-/* Switch to the kernel stack if necessary, and push register state on the
- stack in the form of a state-save-frame. Also load the current task
- pointer if switching from user mode. The stack-pointer (r3) should have
- already been saved to the memory location SP_SAVE_LOC (the reason for
- this is that the interrupt vectors may be beyond a 22-bit signed offset
- jump from the actual interrupt handler, and this allows them to save the
- stack-pointer and use that register to do an indirect jump). This macro
- makes sure that `special' registers, system registers, and the stack
- pointer are saved; TYPE identifies the set of extra registers to be
- saved as well. SYSCALL_NUM is the register in which the system-call
- number this state is for is stored (r0 if this isn't a system call).
- Interrupts should already be disabled when calling this. */
-#define SAVE_STATE(type, syscall_num, sp_save_loc) \
- tst1 0, KM; /* See if already in kernel mode. */ \
- bz 1f; \
- ld.w sp_save_loc, sp; /* ... yes, use saved SP. */ \
- br 2f; \
-1: ld.w KSP, sp; /* ... no, switch to kernel stack. */ \
-2: PUSH_STATE(type); \
- ld.b KM, r19; /* Remember old kernel-mode. */ \
- sst.w r19, PTO+PT_KERNEL_MODE[ep]; \
- ld.w sp_save_loc, r19; /* Remember old SP. */ \
- sst.w r19, PTO+PT_GPR(GPR_SP)[ep]; \
- mov 1, r19; /* Now definitely in kernel-mode. */ \
- st.b r19, KM; \
- GET_CURRENT_TASK(CURRENT_TASK); /* Fetch the current task pointer. */ \
- /* Save away the syscall number. */ \
- sst.w syscall_num, PTO+PT_CUR_SYSCALL[ep]
-
-
-/* Save register state not normally saved by PUSH_STATE for TYPE, to the
- state-save-frame on the stack; also copies SP to EP. r19 may be trashed. */
-#define SAVE_EXTRA_STATE(type) \
- mov sp, ep; \
- type ## _EXTRA_STATE_SAVER
-/* Restore register state not normally restored by POP_STATE for TYPE,
- from the state-save-frame on the stack; also copies SP to EP.
- r19 may be trashed. */
-#define RESTORE_EXTRA_STATE(type) \
- mov sp, ep; \
- type ## _EXTRA_STATE_RESTORER
-
-/* Save any call-clobbered registers not normally saved by PUSH_STATE for
- TYPE, to the state-save-frame on the stack.
- EP may be trashed, but is not guaranteed to contain a copy of SP
- (unlike after most SAVE_... macros). r19 may be trashed. */
-#define SAVE_EXTRA_STATE_FOR_SCHEDULE(type) \
- type ## _SCHEDULE_EXTRA_STATE_SAVER
-/* Restore any call-clobbered registers not normally restored by
- POP_STATE for TYPE, to the state-save-frame on the stack.
- EP may be trashed, but is not guaranteed to contain a copy of SP
- (unlike after most RESTORE_... macros). r19 may be trashed. */
-#define RESTORE_EXTRA_STATE_FOR_SCHEDULE(type) \
- type ## _SCHEDULE_EXTRA_STATE_RESTORER
-
-
-/* These are extra_state_saver/restorer values for a user trap. Note
- that we save the argument registers so that restarted syscalls will
- function properly (otherwise it wouldn't be necessary), and we must
- _not_ restore the return-value registers (so that traps can return a
- value!), but call-clobbered registers are not saved at all, as the
- caller of the syscall function should have saved them. */
-
-#define TRAP_RET reti
-/* Traps don't save call-clobbered registers (but do still save arg regs).
- We preserve PSw to keep long-term state, namely interrupt status (for traps
- from kernel-mode), and the single-step flag (for user traps). */
-#define TRAP_STATE_SAVER \
- SAVE_ARG_REGS; \
- SAVE_PC(EIPC); \
- SAVE_PSW(EIPSW)
-/* When traps return, they just leave call-clobbered registers (except for arg
- regs) with whatever value they have from the kernel. Traps don't preserve
- the PSW, but we zero EIPSW to ensure it doesn't contain anything dangerous
- (in particular, the single-step flag). */
-#define TRAP_STATE_RESTORER \
- RESTORE_ARG_REGS; \
- RESTORE_PC(EIPC); \
- RESTORE_PSW(EIPSW)
-/* Save registers not normally saved by traps. We need to save r12, even
- though it's nominally call-clobbered, because it's used when restarting
- a system call (the signal-handling path uses SAVE_EXTRA_STATE, and
- expects r12 to be restored when the trap returns). */
-#define TRAP_EXTRA_STATE_SAVER \
- SAVE_RVAL_REGS; \
- sst.w r12, PTO+PT_GPR(12)[ep]; \
- SAVE_CALL_SAVED_REGS; \
- SAVE_CT_REGS
-#define TRAP_EXTRA_STATE_RESTORER \
- RESTORE_RVAL_REGS; \
- sld.w PTO+PT_GPR(12)[ep], r12; \
- RESTORE_CALL_SAVED_REGS; \
- RESTORE_CT_REGS
-/* Save registers prior to calling scheduler (just before trap returns).
- We have to save the return-value registers to preserve the trap's return
- value. Note that ..._SCHEDULE_EXTRA_STATE_SAVER, unlike most ..._SAVER
- macros, is required to setup EP itself if EP is needed (this is because
- in many cases, the macro is empty). */
-#define TRAP_SCHEDULE_EXTRA_STATE_SAVER \
- mov sp, ep; \
- SAVE_RVAL_REGS
-/* Note that ..._SCHEDULE_EXTRA_STATE_RESTORER, unlike most ..._RESTORER
- macros, is required to setup EP itself if EP is needed (this is because
- in many cases, the macro is empty). */
-#define TRAP_SCHEDULE_EXTRA_STATE_RESTORER \
- mov sp, ep; \
- RESTORE_RVAL_REGS
-
-/* Register saving/restoring for maskable interrupts. */
-#define IRQ_RET reti
-#define IRQ_STATE_SAVER \
- SAVE_CALL_CLOBBERED_REGS; \
- SAVE_PC(EIPC); \
- SAVE_PSW(EIPSW)
-#define IRQ_STATE_RESTORER \
- RESTORE_CALL_CLOBBERED_REGS; \
- RESTORE_PC(EIPC); \
- RESTORE_PSW(EIPSW)
-#define IRQ_EXTRA_STATE_SAVER \
- SAVE_CALL_SAVED_REGS; \
- SAVE_CT_REGS
-#define IRQ_EXTRA_STATE_RESTORER \
- RESTORE_CALL_SAVED_REGS; \
- RESTORE_CT_REGS
-#define IRQ_SCHEDULE_EXTRA_STATE_SAVER /* nothing */
-#define IRQ_SCHEDULE_EXTRA_STATE_RESTORER /* nothing */
-
-/* Register saving/restoring for non-maskable interrupts. */
-#define NMI_RET reti
-#define NMI_STATE_SAVER \
- SAVE_CALL_CLOBBERED_REGS; \
- SAVE_PC(FEPC); \
- SAVE_PSW(FEPSW);
-#define NMI_STATE_RESTORER \
- RESTORE_CALL_CLOBBERED_REGS; \
- RESTORE_PC(FEPC); \
- RESTORE_PSW(FEPSW);
-#define NMI_EXTRA_STATE_SAVER \
- SAVE_CALL_SAVED_REGS; \
- SAVE_CT_REGS
-#define NMI_EXTRA_STATE_RESTORER \
- RESTORE_CALL_SAVED_REGS; \
- RESTORE_CT_REGS
-#define NMI_SCHEDULE_EXTRA_STATE_SAVER /* nothing */
-#define NMI_SCHEDULE_EXTRA_STATE_RESTORER /* nothing */
-
-/* Register saving/restoring for debug traps. */
-#define DBTRAP_RET .long 0x014607E0 /* `dbret', but gas doesn't support it. */
-#define DBTRAP_STATE_SAVER \
- SAVE_CALL_CLOBBERED_REGS; \
- SAVE_PC(DBPC); \
- SAVE_PSW(DBPSW)
-#define DBTRAP_STATE_RESTORER \
- RESTORE_CALL_CLOBBERED_REGS; \
- RESTORE_PC(DBPC); \
- RESTORE_PSW(DBPSW)
-#define DBTRAP_EXTRA_STATE_SAVER \
- SAVE_CALL_SAVED_REGS; \
- SAVE_CT_REGS
-#define DBTRAP_EXTRA_STATE_RESTORER \
- RESTORE_CALL_SAVED_REGS; \
- RESTORE_CT_REGS
-#define DBTRAP_SCHEDULE_EXTRA_STATE_SAVER /* nothing */
-#define DBTRAP_SCHEDULE_EXTRA_STATE_RESTORER /* nothing */
-
-/* Register saving/restoring for a context switch. We don't need to save
- too many registers, because context-switching looks like a function call
- (via the function `switch_thread'), so callers will save any
- call-clobbered registers themselves. We do need to save the CT regs, as
- they're normally not saved during kernel entry (the kernel doesn't use
- them). We save PSW so that interrupt-status state will correctly follow
- each thread (mostly NMI vs. normal-IRQ/trap), though for the most part
- it doesn't matter since threads are always in almost exactly the same
- processor state during a context switch. The stack pointer and return
- value are handled by switch_thread itself. */
-#define SWITCH_STATE_SAVER \
- SAVE_CALL_SAVED_REGS; \
- SAVE_PSW(PSW); \
- SAVE_CT_REGS
-#define SWITCH_STATE_RESTORER \
- RESTORE_CALL_SAVED_REGS; \
- RESTORE_PSW(PSW); \
- RESTORE_CT_REGS
-
-
-/* Restore register state from the state-save-frame on the stack, switch back
- to the user stack if necessary, and return from the trap/interrupt.
- EXTRA_STATE_RESTORER is a sequence of assembly language statements to
- restore anything not restored by this macro. Only registers not saved by
- the C compiler are restored (that is, R3(sp), R4(gp), R31(lp), and
- anything restored by EXTRA_STATE_RESTORER). */
-#define RETURN(type) \
- ld.b PTO+PT_KERNEL_MODE[sp], r19; \
- di; /* Disable interrupts */ \
- cmp r19, r0; /* See if returning to kernel mode, */\
- bne 2f; /* ... if so, skip resched &c. */ \
- \
- /* We're returning to user mode, so check for various conditions that \
- trigger rescheduling. */ \
- GET_CURRENT_THREAD(r18); \
- ld.w TI_FLAGS[r18], r19; \
- andi _TIF_NEED_RESCHED, r19, r0; \
- bnz 3f; /* Call the scheduler. */ \
-5: andi _TIF_SIGPENDING, r19, r18; \
- ld.w TASK_PTRACE[CURRENT_TASK], r19; /* ptrace flags */ \
- or r18, r19; /* see if either is non-zero */ \
- bnz 4f; /* if so, handle them */ \
- \
-/* Return to user state. */ \
-1: st.b r0, KM; /* Now officially in user state. */ \
- \
-/* Final return. The stack-pointer fiddling is not needed when returning \
- to kernel-mode, but they don't hurt, and this way we can share the \
- (sometimes rather lengthy) POP_STATE macro. */ \
-2: POP_STATE(type); \
- st.w sp, KSP; /* Save the kernel stack pointer. */ \
- ld.w PT_GPR(GPR_SP)-PT_SIZE[sp], sp; /* Restore stack pointer. */ \
- type ## _RET; /* Return from the trap/interrupt. */ \
- \
-/* Call the scheduler before returning from a syscall/trap. */ \
-3: SAVE_EXTRA_STATE_FOR_SCHEDULE(type); /* Prepare to call scheduler. */ \
- jarl call_scheduler, lp; /* Call scheduler */ \
- di; /* The scheduler enables interrupts */\
- RESTORE_EXTRA_STATE_FOR_SCHEDULE(type); \
- GET_CURRENT_THREAD(r18); \
- ld.w TI_FLAGS[r18], r19; \
- br 5b; /* Continue with return path. */ \
- \
-/* Handle a signal or ptraced process return. \
- r18 should be non-zero if there are pending signals. */ \
-4: /* Not all registers are saved by the normal trap/interrupt entry \
- points (for instance, call-saved registers (because the normal \
- C-compiler calling sequence in the kernel makes sure they're \
- preserved), and call-clobbered registers in the case of \
- traps), but signal handlers may want to examine or change the \
- complete register state. Here we save anything not saved by \
- the normal entry sequence, so that it may be safely restored \
- (in a possibly modified form) after do_signal returns. */ \
- SAVE_EXTRA_STATE(type); /* Save state not saved by entry. */ \
- jarl handle_signal_or_ptrace_return, lp; \
- RESTORE_EXTRA_STATE(type); /* Restore extra regs. */ \
- br 1b
-
-
-/* Jump to the appropriate function for the system call number in r12
- (r12 is not preserved), or return an error if r12 is not valid. The
- LP register should point to the location where the called function
- should return. [note that MAKE_SYS_CALL uses label 1] */
-#define MAKE_SYS_CALL \
- /* Figure out which function to use for this system call. */ \
- shl 2, r12; \
- /* See if the system call number is valid. */ \
- addi lo(CSYM(sys_call_table) - sys_call_table_end), r12, r0; \
- bnh 1f; \
- mov hilo(CSYM(sys_call_table)), r19; \
- add r19, r12; \
- ld.w 0[r12], r12; \
- /* Make the system call. */ \
- jmp [r12]; \
- /* The syscall number is invalid, return an error. */ \
-1: addi -ENOSYS, r0, r10; \
- jmp [lp]
-
-
- .text
-
-/*
- * User trap.
- *
- * Trap 0 system calls are also handled here.
- *
- * The stack-pointer (r3) should have already been saved to the memory
- * location ENTRY_SP (the reason for this is that the interrupt vectors may be
- * beyond a 22-bit signed offset jump from the actual interrupt handler, and
- * this allows them to save the stack-pointer and use that register to do an
- * indirect jump).
- *
- * Syscall protocol:
- * Syscall number in r12, args in r6-r9
- * Return value in r10
- */
-G_ENTRY(trap):
- SAVE_STATE (TRAP, r12, ENTRY_SP) // Save registers.
- stsr SR_ECR, r19 // Find out which trap it was.
- ei // Enable interrupts.
- mov hilo(ret_from_trap), lp // where the trap should return
-
- // The following two shifts (1) clear out extraneous NMI data in the
- // upper 16-bits, (2) convert the 0x40 - 0x5f range of trap ECR
- // numbers into the (0-31) << 2 range we want, (3) set the flags.
- shl 27, r19 // chop off all high bits
- shr 25, r19 // scale back down and then << 2
- bnz 2f // See if not trap 0.
-
- // Trap 0 is a `short' system call, skip general trap table.
- MAKE_SYS_CALL // Jump to the syscall function.
-
-2: // For other traps, use a table lookup.
- mov hilo(CSYM(trap_table)), r18
- add r19, r18
- ld.w 0[r18], r18
- jmp [r18] // Jump to the trap handler.
-END(trap)
-
-/* This is just like ret_from_trap, but first restores extra registers
- saved by some wrappers. */
-L_ENTRY(restore_extra_regs_and_ret_from_trap):
- RESTORE_EXTRA_STATE(TRAP)
- // fall through
-END(restore_extra_regs_and_ret_from_trap)
-
-/* Entry point used to return from a syscall/trap. */
-L_ENTRY(ret_from_trap):
- RETURN(TRAP)
-END(ret_from_trap)
-
-
-/* This the initial entry point for a new child thread, with an appropriate
- stack in place that makes it look that the child is in the middle of an
- syscall. This function is actually `returned to' from switch_thread
- (copy_thread makes ret_from_fork the return address in each new thread's
- saved context). */
-C_ENTRY(ret_from_fork):
- mov r10, r6 // switch_thread returns the prev task.
- jarl CSYM(schedule_tail), lp // ...which is schedule_tail's arg
- mov r0, r10 // Child's fork call should return 0.
- br ret_from_trap // Do normal trap return.
-C_END(ret_from_fork)
-
-
-/*
- * Trap 1: `long' system calls
- * `Long' syscall protocol:
- * Syscall number in r12, args in r6-r9, r13-r14
- * Return value in r10
- */
-L_ENTRY(syscall_long):
- // Push extra arguments on the stack. Note that by default, the trap
- // handler reserves enough stack space for 6 arguments, so we don't
- // have to make any additional room.
- st.w r13, 16[sp] // arg 5
- st.w r14, 20[sp] // arg 6
-
- // Make sure r13 and r14 are preserved, in case we have to restart a
- // system call because of a signal (ep has already been set by caller).
- st.w r13, PTO+PT_GPR(13)[sp]
- st.w r14, PTO+PT_GPR(13)[sp]
- mov hilo(ret_from_long_syscall), lp
-
- MAKE_SYS_CALL // Jump to the syscall function.
-END(syscall_long)
-
-/* Entry point used to return from a long syscall. Only needed to restore
- r13/r14 if the general trap mechanism doesnt' do so. */
-L_ENTRY(ret_from_long_syscall):
- ld.w PTO+PT_GPR(13)[sp], r13 // Restore the extra registers
- ld.w PTO+PT_GPR(13)[sp], r14
- br ret_from_trap // The rest is the same as other traps
-END(ret_from_long_syscall)
-
-
-/* These syscalls need access to the struct pt_regs on the stack, so we
- implement them in assembly (they're basically all wrappers anyway). */
-
-L_ENTRY(sys_fork_wrapper):
-#ifdef CONFIG_MMU
- addi SIGCHLD, r0, r6 // Arg 0: flags
- ld.w PTO+PT_GPR(GPR_SP)[sp], r7 // Arg 1: child SP (use parent's)
- movea PTO, sp, r8 // Arg 2: parent context
- mov r0, r9 // Arg 3/4/5: 0
- st.w r0, 16[sp]
- st.w r0, 20[sp]
- mov hilo(CSYM(do_fork)), r18 // Where the real work gets done
- br save_extra_state_tramp // Save state and go there
-#else
- // fork almost works, enough to trick you into looking elsewhere :-(
- addi -EINVAL, r0, r10
- jmp [lp]
-#endif
-END(sys_fork_wrapper)
-
-L_ENTRY(sys_vfork_wrapper):
- addi CLONE_VFORK | CLONE_VM | SIGCHLD, r0, r6 // Arg 0: flags
- ld.w PTO+PT_GPR(GPR_SP)[sp], r7 // Arg 1: child SP (use parent's)
- movea PTO, sp, r8 // Arg 2: parent context
- mov r0, r9 // Arg 3/4/5: 0
- st.w r0, 16[sp]
- st.w r0, 20[sp]
- mov hilo(CSYM(do_fork)), r18 // Where the real work gets done
- br save_extra_state_tramp // Save state and go there
-END(sys_vfork_wrapper)
-
-L_ENTRY(sys_clone_wrapper):
- ld.w PTO+PT_GPR(GPR_SP)[sp], r19// parent's stack pointer
- cmp r7, r0 // See if child SP arg (arg 1) is 0.
- cmov z, r19, r7, r7 // ... and use the parent's if so.
- movea PTO, sp, r8 // Arg 2: parent context
- mov r0, r9 // Arg 3/4/5: 0
- st.w r0, 16[sp]
- st.w r0, 20[sp]
- mov hilo(CSYM(do_fork)), r18 // Where the real work gets done
- br save_extra_state_tramp // Save state and go there
-END(sys_clone_wrapper)
-
-
-L_ENTRY(sys_execve_wrapper):
- movea PTO, sp, r9 // add user context as 4th arg
- jr CSYM(sys_execve) // Do real work (tail-call).
-END(sys_execve_wrapper)
-
-
-L_ENTRY(sys_sigsuspend_wrapper):
- movea PTO, sp, r7 // add user context as 2nd arg
- mov hilo(CSYM(sys_sigsuspend)), r18 // syscall function
- jarl save_extra_state_tramp, lp // Save state and do it
- br restore_extra_regs_and_ret_from_trap
-END(sys_sigsuspend_wrapper)
-L_ENTRY(sys_rt_sigsuspend_wrapper):
- movea PTO, sp, r8 // add user context as 3rd arg
- mov hilo(CSYM(sys_rt_sigsuspend)), r18 // syscall function
- jarl save_extra_state_tramp, lp // Save state and do it
- br restore_extra_regs_and_ret_from_trap
-END(sys_rt_sigsuspend_wrapper)
-
-L_ENTRY(sys_sigreturn_wrapper):
- movea PTO, sp, r6 // add user context as 1st arg
- mov hilo(CSYM(sys_sigreturn)), r18 // syscall function
- jarl save_extra_state_tramp, lp // Save state and do it
- br restore_extra_regs_and_ret_from_trap
-END(sys_sigreturn_wrapper)
-L_ENTRY(sys_rt_sigreturn_wrapper):
- movea PTO, sp, r6 // add user context as 1st arg
- mov hilo(CSYM(sys_rt_sigreturn)), r18// syscall function
- jarl save_extra_state_tramp, lp // Save state and do it
- br restore_extra_regs_and_ret_from_trap
-END(sys_rt_sigreturn_wrapper)
-
-
-/* Save any state not saved by SAVE_STATE(TRAP), and jump to r18.
- It's main purpose is to share the rather lengthy code sequence that
- SAVE_STATE expands into among the above wrapper functions. */
-L_ENTRY(save_extra_state_tramp):
- SAVE_EXTRA_STATE(TRAP) // Save state not saved by entry.
- jmp [r18] // Do the work the caller wants
-END(save_extra_state_tramp)
-
-
-/*
- * Hardware maskable interrupts.
- *
- * The stack-pointer (r3) should have already been saved to the memory
- * location ENTRY_SP (the reason for this is that the interrupt vectors may be
- * beyond a 22-bit signed offset jump from the actual interrupt handler, and
- * this allows them to save the stack-pointer and use that register to do an
- * indirect jump).
- */
-G_ENTRY(irq):
- SAVE_STATE (IRQ, r0, ENTRY_SP) // Save registers.
-
- stsr SR_ECR, r6 // Find out which interrupt it was.
- movea PTO, sp, r7 // User regs are arg2
-
- // All v850 implementations I know about encode their interrupts as
- // multiples of 0x10, starting at 0x80 (after NMIs and software
- // interrupts). Convert this number into a simple IRQ index for the
- // rest of the kernel. We also clear the upper 16 bits, which hold
- // NMI info, and don't appear to be cleared when a NMI returns.
- shl 16, r6 // clear upper 16 bits
- shr 20, r6 // shift back, and remove lower nibble
- add -8, r6 // remove bias for irqs
-
- // Call the high-level interrupt handling code.
- jarl CSYM(handle_irq), lp
-
- RETURN(IRQ)
-END(irq)
-
-
-/*
- * Debug trap / illegal-instruction exception
- *
- * The stack-pointer (r3) should have already been saved to the memory
- * location ENTRY_SP (the reason for this is that the interrupt vectors may be
- * beyond a 22-bit signed offset jump from the actual interrupt handler, and
- * this allows them to save the stack-pointer and use that register to do an
- * indirect jump).
- */
-G_ENTRY(dbtrap):
- SAVE_STATE (DBTRAP, r0, ENTRY_SP)// Save registers.
-
- /* First see if we came from kernel mode; if so, the dbtrap
- instruction has a special meaning, to set the DIR (`debug
- information register') register. This is because the DIR register
- can _only_ be manipulated/read while in `debug mode,' and debug
- mode is only active while we're inside the dbtrap handler. The
- exact functionality is: { DIR = (DIR | r6) & ~r7; return DIR; }. */
- ld.b PTO+PT_KERNEL_MODE[sp], r19
- cmp r19, r0
- bz 1f
-
- stsr SR_DIR, r10
- or r6, r10
- not r7, r7
- and r7, r10
- ldsr r10, SR_DIR
- stsr SR_DIR, r10 // Confirm the value we set
- st.w r10, PTO+PT_GPR(10)[sp] // return it
- br 3f
-
-1: ei // Enable interrupts.
-
- /* The default signal type we raise. */
- mov SIGTRAP, r6
-
- /* See if it's a single-step trap. */
- stsr SR_DBPSW, r19
- andi 0x0800, r19, r19
- bnz 2f
-
- /* Look to see if the preceding instruction was is a dbtrap or not,
- to decide which signal we should use. */
- stsr SR_DBPC, r19 // PC following trapping insn
- ld.hu -2[r19], r19
- ori 0xf840, r0, r20 // DBTRAP insn
- cmp r19, r20 // Was this trap caused by DBTRAP?
- cmov ne, SIGILL, r6, r6 // Choose signal appropriately
-
- /* Raise the desired signal. */
-2: mov CURRENT_TASK, r7 // Arg 1: task
- jarl CSYM(send_sig), lp // tail call
-
-3: RETURN(DBTRAP)
-END(dbtrap)
-
-
-/*
- * Hardware non-maskable interrupts.
- *
- * The stack-pointer (r3) should have already been saved to the memory
- * location ENTRY_SP (the reason for this is that the interrupt vectors may be
- * beyond a 22-bit signed offset jump from the actual interrupt handler, and
- * this allows them to save the stack-pointer and use that register to do an
- * indirect jump).
- */
-G_ENTRY(nmi):
- SAVE_STATE (NMI, r0, NMI_ENTRY_SP); /* Save registers. */
-
- stsr SR_ECR, r6; /* Find out which nmi it was. */
- shr 20, r6; /* Extract NMI code in bits 20-24. */
- movea PTO, sp, r7; /* User regs are arg2. */
-
- /* Non-maskable interrupts always lie right after maskable interrupts.
- Call the generic IRQ handler, with two arguments, the IRQ number,
- and a pointer to the user registers, to handle the specifics.
- (we subtract one because the first NMI has code 1). */
- addi FIRST_NMI - 1, r6, r6
- jarl CSYM(handle_irq), lp
-
- RETURN(NMI)
-END(nmi)
-
-
-/*
- * Trap with no handler
- */
-L_ENTRY(bad_trap_wrapper):
- mov r19, r6 // Arg 0: trap number
- movea PTO, sp, r7 // Arg 1: user regs
- jr CSYM(bad_trap) // tail call handler
-END(bad_trap_wrapper)
-
-
-/*
- * Invoke the scheduler, called from the trap/irq kernel exit path.
- *
- * This basically just calls `schedule', but also arranges for extra
- * registers to be saved for ptrace'd processes, so ptrace can modify them.
- */
-L_ENTRY(call_scheduler):
- ld.w TASK_PTRACE[CURRENT_TASK], r19 // See if task is ptrace'd
- cmp r19, r0
- bnz 1f // ... yes, do special stuff
- jr CSYM(schedule) // ... no, just tail-call scheduler
-
- // Save extra regs for ptrace'd task. We want to save anything
- // that would otherwise only be `implicitly' saved by the normal
- // compiler calling-convention.
-1: mov sp, ep // Setup EP for SAVE_CALL_SAVED_REGS
- SAVE_CALL_SAVED_REGS // Save call-saved registers to stack
- mov lp, r20 // Save LP in a callee-saved register
-
- jarl CSYM(schedule), lp // Call scheduler
-
- mov r20, lp
- mov sp, ep // We can't rely on EP after return
- RESTORE_CALL_SAVED_REGS // Restore (possibly modified) regs
- jmp [lp] // Return to the return path
-END(call_scheduler)
-
-
-/*
- * This is an out-of-line handler for two special cases during the kernel
- * trap/irq exit sequence:
- *
- * (1) If r18 is non-zero then a signal needs to be handled, which is
- * done, and then the caller returned to.
- *
- * (2) If r18 is non-zero then we're returning to a ptraced process, which
- * has several special cases -- single-stepping and trap tracing, both
- * of which require using the `dbret' instruction to exit the kernel
- * instead of the normal `reti' (this is because the CPU not correctly
- * single-step after a reti). In this case, of course, this handler
- * never returns to the caller.
- *
- * In either case, all registers should have been saved to the current
- * state-save-frame on the stack, except for callee-saved registers.
- *
- * [These two different cases are combined merely to avoid bloating the
- * macro-inlined code, not because they really make much sense together!]
- */
-L_ENTRY(handle_signal_or_ptrace_return):
- cmp r18, r0 // See if handling a signal
- bz 1f // ... nope, go do ptrace return
-
- // Handle a signal
- mov lp, r20 // Save link-pointer
- mov r10, r21 // Save return-values (for trap)
- mov r11, r22
-
- movea PTO, sp, r6 // Arg 1: struct pt_regs *regs
- mov r0, r7 // Arg 2: sigset_t *oldset
- jarl CSYM(do_signal), lp // Handle the signal
- di // sig handling enables interrupts
-
- mov r20, lp // Restore link-pointer
- mov r21, r10 // Restore return-values (for trap)
- mov r22, r11
- ld.w TASK_PTRACE[CURRENT_TASK], r19 // check ptrace flags too
- cmp r19, r0
- bnz 1f // ... some set, so look more
-2: jmp [lp] // ... none set, so return normally
-
- // ptrace return
-1: ld.w PTO+PT_PSW[sp], r19 // Look at user-processes's flags
- andi 0x0800, r19, r19 // See if single-step flag is set
- bz 2b // ... nope, return normally
-
- // Return as if from a dbtrap insn
- st.b r0, KM // Now officially in user state.
- POP_STATE(DBTRAP) // Restore regs
- st.w sp, KSP // Save the kernel stack pointer.
- ld.w PT_GPR(GPR_SP)-PT_SIZE[sp], sp // Restore user stack pointer.
- DBTRAP_RET // Return from the trap/interrupt.
-END(handle_signal_or_ptrace_return)
-
-
-/*
- * This is where we switch between two threads. The arguments are:
- * r6 -- pointer to the struct thread for the `current' process
- * r7 -- pointer to the struct thread for the `new' process.
- * when this function returns, it will return to the new thread.
- */
-C_ENTRY(switch_thread):
- // Return the previous task (r10 is not clobbered by restore below)
- mov CURRENT_TASK, r10
- // First, push the current processor state on the stack
- PUSH_STATE(SWITCH)
- // Now save the location of the kernel stack pointer for this thread;
- // since we've pushed all other state on the stack, this is enough to
- // restore it all later.
- st.w sp, THREAD_KSP[r6]
- // Now restore the stack pointer from the new process
- ld.w THREAD_KSP[r7], sp
- // ... and restore all state from that
- POP_STATE(SWITCH)
- // Update the current task pointer
- GET_CURRENT_TASK(CURRENT_TASK)
- // Now return into the new thread
- jmp [lp]
-C_END(switch_thread)
-
-
- .data
-
- .align 4
-C_DATA(trap_table):
- .long bad_trap_wrapper // trap 0, doesn't use trap table.
- .long syscall_long // trap 1, `long' syscall.
- .long bad_trap_wrapper
- .long bad_trap_wrapper
- .long bad_trap_wrapper
- .long bad_trap_wrapper
- .long bad_trap_wrapper
- .long bad_trap_wrapper
- .long bad_trap_wrapper
- .long bad_trap_wrapper
- .long bad_trap_wrapper
- .long bad_trap_wrapper
- .long bad_trap_wrapper
- .long bad_trap_wrapper
- .long bad_trap_wrapper
- .long bad_trap_wrapper
-C_END(trap_table)
-
-
- .section .rodata
-
- .align 4
-C_DATA(sys_call_table):
- .long CSYM(sys_restart_syscall) // 0
- .long CSYM(sys_exit)
- .long sys_fork_wrapper
- .long CSYM(sys_read)
- .long CSYM(sys_write)
- .long CSYM(sys_open) // 5
- .long CSYM(sys_close)
- .long CSYM(sys_waitpid)
- .long CSYM(sys_creat)
- .long CSYM(sys_link)
- .long CSYM(sys_unlink) // 10
- .long sys_execve_wrapper
- .long CSYM(sys_chdir)
- .long CSYM(sys_time)
- .long CSYM(sys_mknod)
- .long CSYM(sys_chmod) // 15
- .long CSYM(sys_chown)
- .long CSYM(sys_ni_syscall) // was: break
- .long CSYM(sys_ni_syscall) // was: oldstat (aka stat)
- .long CSYM(sys_lseek)
- .long CSYM(sys_getpid) // 20
- .long CSYM(sys_mount)
- .long CSYM(sys_oldumount)
- .long CSYM(sys_setuid)
- .long CSYM(sys_getuid)
- .long CSYM(sys_stime) // 25
- .long CSYM(sys_ptrace)
- .long CSYM(sys_alarm)
- .long CSYM(sys_ni_syscall) // was: oldfstat (aka fstat)
- .long CSYM(sys_pause)
- .long CSYM(sys_utime) // 30
- .long CSYM(sys_ni_syscall) // was: stty
- .long CSYM(sys_ni_syscall) // was: gtty
- .long CSYM(sys_access)
- .long CSYM(sys_nice)
- .long CSYM(sys_ni_syscall) // 35, was: ftime
- .long CSYM(sys_sync)
- .long CSYM(sys_kill)
- .long CSYM(sys_rename)
- .long CSYM(sys_mkdir)
- .long CSYM(sys_rmdir) // 40
- .long CSYM(sys_dup)
- .long CSYM(sys_pipe)
- .long CSYM(sys_times)
- .long CSYM(sys_ni_syscall) // was: prof
- .long CSYM(sys_brk) // 45
- .long CSYM(sys_setgid)
- .long CSYM(sys_getgid)
- .long CSYM(sys_signal)
- .long CSYM(sys_geteuid)
- .long CSYM(sys_getegid) // 50
- .long CSYM(sys_acct)
- .long CSYM(sys_umount) // recycled never used phys()
- .long CSYM(sys_ni_syscall) // was: lock
- .long CSYM(sys_ioctl)
- .long CSYM(sys_fcntl) // 55
- .long CSYM(sys_ni_syscall) // was: mpx
- .long CSYM(sys_setpgid)
- .long CSYM(sys_ni_syscall) // was: ulimit
- .long CSYM(sys_ni_syscall)
- .long CSYM(sys_umask) // 60
- .long CSYM(sys_chroot)
- .long CSYM(sys_ustat)
- .long CSYM(sys_dup2)
- .long CSYM(sys_getppid)
- .long CSYM(sys_getpgrp) // 65
- .long CSYM(sys_setsid)
- .long CSYM(sys_sigaction)
- .long CSYM(sys_sgetmask)
- .long CSYM(sys_ssetmask)
- .long CSYM(sys_setreuid) // 70
- .long CSYM(sys_setregid)
- .long sys_sigsuspend_wrapper
- .long CSYM(sys_sigpending)
- .long CSYM(sys_sethostname)
- .long CSYM(sys_setrlimit) // 75
- .long CSYM(sys_getrlimit)
- .long CSYM(sys_getrusage)
- .long CSYM(sys_gettimeofday)
- .long CSYM(sys_settimeofday)
- .long CSYM(sys_getgroups) // 80
- .long CSYM(sys_setgroups)
- .long CSYM(sys_select)
- .long CSYM(sys_symlink)
- .long CSYM(sys_ni_syscall) // was: oldlstat (aka lstat)
- .long CSYM(sys_readlink) // 85
- .long CSYM(sys_uselib)
- .long CSYM(sys_swapon)
- .long CSYM(sys_reboot)
- .long CSYM(old_readdir)
- .long CSYM(sys_mmap) // 90
- .long CSYM(sys_munmap)
- .long CSYM(sys_truncate)
- .long CSYM(sys_ftruncate)
- .long CSYM(sys_fchmod)
- .long CSYM(sys_fchown) // 95
- .long CSYM(sys_getpriority)
- .long CSYM(sys_setpriority)
- .long CSYM(sys_ni_syscall) // was: profil
- .long CSYM(sys_statfs)
- .long CSYM(sys_fstatfs) // 100
- .long CSYM(sys_ni_syscall) // i386: ioperm
- .long CSYM(sys_socketcall)
- .long CSYM(sys_syslog)
- .long CSYM(sys_setitimer)
- .long CSYM(sys_getitimer) // 105
- .long CSYM(sys_newstat)
- .long CSYM(sys_newlstat)
- .long CSYM(sys_newfstat)
- .long CSYM(sys_ni_syscall) // was: olduname (aka uname)
- .long CSYM(sys_ni_syscall) // 110, i386: iopl
- .long CSYM(sys_vhangup)
- .long CSYM(sys_ni_syscall) // was: idle
- .long CSYM(sys_ni_syscall) // i386: vm86old
- .long CSYM(sys_wait4)
- .long CSYM(sys_swapoff) // 115
- .long CSYM(sys_sysinfo)
- .long CSYM(sys_ipc)
- .long CSYM(sys_fsync)
- .long sys_sigreturn_wrapper
- .long sys_clone_wrapper // 120
- .long CSYM(sys_setdomainname)
- .long CSYM(sys_newuname)
- .long CSYM(sys_ni_syscall) // i386: modify_ldt, m68k: cacheflush
- .long CSYM(sys_adjtimex)
- .long CSYM(sys_ni_syscall) // 125 - sys_mprotect
- .long CSYM(sys_sigprocmask)
- .long CSYM(sys_ni_syscall) // sys_create_module
- .long CSYM(sys_init_module)
- .long CSYM(sys_delete_module)
- .long CSYM(sys_ni_syscall) // 130 - sys_get_kernel_syms
- .long CSYM(sys_quotactl)
- .long CSYM(sys_getpgid)
- .long CSYM(sys_fchdir)
- .long CSYM(sys_bdflush)
- .long CSYM(sys_sysfs) // 135
- .long CSYM(sys_personality)
- .long CSYM(sys_ni_syscall) // for afs_syscall
- .long CSYM(sys_setfsuid)
- .long CSYM(sys_setfsgid)
- .long CSYM(sys_llseek) // 140
- .long CSYM(sys_getdents)
- .long CSYM(sys_select) // for backward compat; remove someday
- .long CSYM(sys_flock)
- .long CSYM(sys_ni_syscall) // sys_msync
- .long CSYM(sys_readv) // 145
- .long CSYM(sys_writev)
- .long CSYM(sys_getsid)
- .long CSYM(sys_fdatasync)
- .long CSYM(sys_sysctl)
- .long CSYM(sys_ni_syscall) // 150 - sys_mlock
- .long CSYM(sys_ni_syscall) // sys_munlock
- .long CSYM(sys_ni_syscall) // sys_mlockall
- .long CSYM(sys_ni_syscall) // sys_munlockall
- .long CSYM(sys_sched_setparam)
- .long CSYM(sys_sched_getparam) // 155
- .long CSYM(sys_sched_setscheduler)
- .long CSYM(sys_sched_getscheduler)
- .long CSYM(sys_sched_yield)
- .long CSYM(sys_sched_get_priority_max)
- .long CSYM(sys_sched_get_priority_min) // 160
- .long CSYM(sys_sched_rr_get_interval)
- .long CSYM(sys_nanosleep)
- .long CSYM(sys_ni_syscall) // sys_mremap
- .long CSYM(sys_setresuid)
- .long CSYM(sys_getresuid) // 165
- .long CSYM(sys_ni_syscall) // for vm86
- .long CSYM(sys_ni_syscall) // sys_query_module
- .long CSYM(sys_poll)
- .long CSYM(sys_nfsservctl)
- .long CSYM(sys_setresgid) // 170
- .long CSYM(sys_getresgid)
- .long CSYM(sys_prctl)
- .long sys_rt_sigreturn_wrapper
- .long CSYM(sys_rt_sigaction)
- .long CSYM(sys_rt_sigprocmask) // 175
- .long CSYM(sys_rt_sigpending)
- .long CSYM(sys_rt_sigtimedwait)
- .long CSYM(sys_rt_sigqueueinfo)
- .long sys_rt_sigsuspend_wrapper
- .long CSYM(sys_pread64) // 180
- .long CSYM(sys_pwrite64)
- .long CSYM(sys_lchown)
- .long CSYM(sys_getcwd)
- .long CSYM(sys_capget)
- .long CSYM(sys_capset) // 185
- .long CSYM(sys_sigaltstack)
- .long CSYM(sys_sendfile)
- .long CSYM(sys_ni_syscall) // streams1
- .long CSYM(sys_ni_syscall) // streams2
- .long sys_vfork_wrapper // 190
- .long CSYM(sys_ni_syscall)
- .long CSYM(sys_mmap2)
- .long CSYM(sys_truncate64)
- .long CSYM(sys_ftruncate64)
- .long CSYM(sys_stat64) // 195
- .long CSYM(sys_lstat64)
- .long CSYM(sys_fstat64)
- .long CSYM(sys_fcntl64)
- .long CSYM(sys_getdents64)
- .long CSYM(sys_pivot_root) // 200
- .long CSYM(sys_gettid)
- .long CSYM(sys_tkill)
-sys_call_table_end:
-C_END(sys_call_table)
+++ /dev/null
-/*
- * arch/v850/kernel/fpga85e2c.h -- Machine-dependent defs for
- * FPGA implementation of V850E2/NA85E2C
- *
- * Copyright (C) 2002,03 NEC Electronics Corporation
- * Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/bootmem.h>
-#include <linux/irq.h>
-#include <linux/bitops.h>
-
-#include <asm/atomic.h>
-#include <asm/page.h>
-#include <asm/machdep.h>
-
-#include "mach.h"
-
-extern void memcons_setup (void);
-
-
-#define REG_DUMP_ADDR 0x220000
-
-
-extern struct irqaction reg_snap_action; /* fwd decl */
-
-
-void __init mach_early_init (void)
-{
- int i;
- const u32 *src;
- register u32 *dst asm ("ep");
- extern u32 _intv_end, _intv_load_start;
-
- /* Set bus sizes: CS0 32-bit, CS1 16-bit, CS7 8-bit,
- everything else 32-bit. */
- V850E2_BSC = 0x2AA6;
- for (i = 2; i <= 6; i++)
- CSDEV(i) = 0; /* 32 bit */
-
- /* Ensure that the simulator halts on a panic, instead of going
- into an infinite loop inside the panic function. */
- panic_timeout = -1;
-
- /* Move the interrupt vectors into their real location. Note that
- any relocations there are relative to the real location, so we
- don't have to fix anything up. We use a loop instead of calling
- memcpy to keep this a leaf function (to avoid a function
- prologue being generated). */
- dst = 0x10; /* &_intv_start + 0x10. */
- src = &_intv_load_start;
- do {
- u32 t0 = src[0], t1 = src[1], t2 = src[2], t3 = src[3];
- u32 t4 = src[4], t5 = src[5], t6 = src[6], t7 = src[7];
- dst[0] = t0; dst[1] = t1; dst[2] = t2; dst[3] = t3;
- dst[4] = t4; dst[5] = t5; dst[6] = t6; dst[7] = t7;
- dst += 8;
- src += 8;
- } while (dst < &_intv_end);
-}
-
-void __init mach_setup (char **cmdline)
-{
- memcons_setup ();
-
- /* Setup up NMI0 to copy the registers to a known memory location.
- The FGPA board has a button that produces NMI0 when pressed, so
- this allows us to push the button, and then look at memory to see
- what's in the registers (there's no other way to easily do so).
- We have to use `setup_irq' instead of `request_irq' because it's
- still too early to do memory allocation. */
- setup_irq (IRQ_NMI (0), ®_snap_action);
-}
-
-void mach_get_physical_ram (unsigned long *ram_start, unsigned long *ram_len)
-{
- *ram_start = ERAM_ADDR;
- *ram_len = ERAM_SIZE;
-}
-
-void __init mach_sched_init (struct irqaction *timer_action)
-{
- /* Setup up the timer interrupt. The FPGA peripheral control
- registers _only_ work with single-bit writes (set1/clr1)! */
- __clear_bit (RPU_GTMC_CE_BIT, &RPU_GTMC);
- __clear_bit (RPU_GTMC_CLK_BIT, &RPU_GTMC);
- __set_bit (RPU_GTMC_CE_BIT, &RPU_GTMC);
-
- /* We use the first RPU interrupt, which occurs every 8.192ms. */
- setup_irq (IRQ_RPU (0), timer_action);
-}
-
-\f
-void mach_gettimeofday (struct timespec *tv)
-{
- tv->tv_sec = 0;
- tv->tv_nsec = 0;
-}
-
-void machine_halt (void) __attribute__ ((noreturn));
-void machine_halt (void)
-{
- for (;;) {
- DWC(0) = 0x7777;
- DWC(1) = 0x7777;
- ASC = 0xffff;
- FLGREG(0) = 1; /* Halt immediately. */
- asm ("di; halt; nop; nop; nop; nop; nop");
- }
-}
-
-void machine_restart (char *__unused)
-{
- machine_halt ();
-}
-
-void machine_power_off (void)
-{
- machine_halt ();
-}
-
-\f
-/* Interrupts */
-
-struct v850e_intc_irq_init irq_inits[] = {
- { "IRQ", 0, NUM_MACH_IRQS, 1, 7 },
- { "RPU", IRQ_RPU(0), IRQ_RPU_NUM, 1, 6 },
- { 0 }
-};
-#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1)
-
-struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS];
-
-/* Initialize interrupts. */
-void __init mach_init_irqs (void)
-{
- v850e_intc_init_irq_types (irq_inits, hw_itypes);
-}
-
-\f
-/* An interrupt handler that copies the registers to a known memory location,
- for debugging purposes. */
-
-static void make_reg_snap (int irq, void *dummy, struct pt_regs *regs)
-{
- (*(unsigned *)REG_DUMP_ADDR)++;
- (*(struct pt_regs *)(REG_DUMP_ADDR + sizeof (unsigned))) = *regs;
-}
-
-static int reg_snap_dev_id;
-static struct irqaction reg_snap_action = {
- .handler = make_reg_snap,
- .mask = CPU_MASK_NONE,
- .name = "reg_snap",
- .dev_id = ®_snap_dev_id,
-};
+++ /dev/null
-/* Linker script for the FPGA implementation of the V850E2 NA85E2C cpu core
- (CONFIG_V850E2_FPGA85E2C). */
-
-MEMORY {
- /* Reset vector. */
- RESET : ORIGIN = 0, LENGTH = 0x10
- /* Interrupt vectors. */
- INTV : ORIGIN = 0x10, LENGTH = 0x470
- /* The `window' in RAM were we're allowed to load stuff. */
- RAM_LOW : ORIGIN = 0x480, LENGTH = 0x0005FB80
- /* Some more ram above the window were we can put bss &c. */
- RAM_HIGH : ORIGIN = 0x00060000, LENGTH = 0x000A0000
- /* This is the area visible from the outside world (we can use
- this only for uninitialized data). */
- VISIBLE : ORIGIN = 0x00200000, LENGTH = 0x00060000
-}
-
-SECTIONS {
- .reset : {
- __kram_start = . ;
- __intv_start = . ;
- *(.intv.reset) /* Reset vector */
- } > RESET
-
- .ram_low : {
- __r0_ram = . ; /* Must be near address 0. */
- . = . + 32 ;
-
- TEXT_CONTENTS
- DATA_CONTENTS
- ROOT_FS_CONTENTS
- RAMK_INIT_CONTENTS_NO_END
- INITRAMFS_CONTENTS
- } > RAM_LOW
-
- /* Where the interrupt vectors are initially loaded. */
- __intv_load_start = . ;
-
- .intv : {
- *(.intv.common) /* Vectors common to all v850e proc. */
- *(.intv.mach) /* Machine-specific int. vectors. */
- __intv_end = . ;
- } > INTV AT> RAM_LOW
-
- .ram_high : {
- /* This is here so that when we free init memory the
- load-time copy of the interrupt vectors and any empty
- space at the end of the `RAM_LOW' area is freed too. */
- . = ALIGN (4096);
- __init_end = . ;
-
- BSS_CONTENTS
- __kram_end = . ;
- BOOTMAP_CONTENTS
- } > RAM_HIGH
-
- .visible : {
- _memcons_output = . ;
- . = . + 0x8000 ;
- _memcons_output_end = . ;
- } > VISIBLE
-}
+++ /dev/null
-/*
- * arch/v850/kernel/gbus_int.c -- Midas labs GBUS interrupt support
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <linux/signal.h>
-#include <linux/kernel.h>
-
-#include <asm/machdep.h>
-
-
-/* The number of shared GINT interrupts. */
-#define NUM_GINTS 4
-
-/* For each GINT interrupt, how many GBUS interrupts are using it. */
-static unsigned gint_num_active_irqs[NUM_GINTS] = { 0 };
-
-/* A table of GINTn interrupts we actually use.
- Note that we don't use GINT0 because all the boards we support treat it
- specially. */
-struct used_gint {
- unsigned gint;
- unsigned priority;
-} used_gint[] = {
- { 1, GBUS_INT_PRIORITY_HIGH },
- { 3, GBUS_INT_PRIORITY_LOW }
-};
-#define NUM_USED_GINTS ARRAY_SIZE(used_gint)
-
-/* A table of which GINT is used by each GBUS interrupts (they are
- assigned based on priority). */
-static unsigned char gbus_int_gint[IRQ_GBUS_INT_NUM];
-
-\f
-/* Interrupt enabling/disabling. */
-
-/* Enable interrupt handling for interrupt IRQ. */
-void gbus_int_enable_irq (unsigned irq)
-{
- unsigned gint = gbus_int_gint[irq - GBUS_INT_BASE_IRQ];
- GBUS_INT_ENABLE (GBUS_INT_IRQ_WORD(irq), gint)
- |= GBUS_INT_IRQ_MASK (irq);
-}
-
-/* Disable interrupt handling for interrupt IRQ. Note that any
- interrupts received while disabled will be delivered once the
- interrupt is enabled again, unless they are explicitly cleared using
- `gbus_int_clear_pending_irq'. */
-void gbus_int_disable_irq (unsigned irq)
-{
- unsigned gint = gbus_int_gint[irq - GBUS_INT_BASE_IRQ];
- GBUS_INT_ENABLE (GBUS_INT_IRQ_WORD(irq), gint)
- &= ~GBUS_INT_IRQ_MASK (irq);
-}
-
-/* Return true if interrupt handling for interrupt IRQ is enabled. */
-int gbus_int_irq_enabled (unsigned irq)
-{
- unsigned gint = gbus_int_gint[irq - GBUS_INT_BASE_IRQ];
- return (GBUS_INT_ENABLE (GBUS_INT_IRQ_WORD(irq), gint)
- & GBUS_INT_IRQ_MASK(irq));
-}
-
-/* Disable all GBUS irqs. */
-void gbus_int_disable_irqs ()
-{
- unsigned w, n;
- for (w = 0; w < GBUS_INT_NUM_WORDS; w++)
- for (n = 0; n < IRQ_GINT_NUM; n++)
- GBUS_INT_ENABLE (w, n) = 0;
-}
-
-/* Clear any pending interrupts for IRQ. */
-void gbus_int_clear_pending_irq (unsigned irq)
-{
- GBUS_INT_CLEAR (GBUS_INT_IRQ_WORD(irq)) = GBUS_INT_IRQ_MASK (irq);
-}
-
-/* Return true if interrupt IRQ is pending (but disabled). */
-int gbus_int_irq_pending (unsigned irq)
-{
- return (GBUS_INT_STATUS (GBUS_INT_IRQ_WORD(irq))
- & GBUS_INT_IRQ_MASK(irq));
-}
-
-\f
-/* Delegating interrupts. */
-
-/* Handle a shared GINT interrupt by passing to the appropriate GBUS
- interrupt handler. */
-static irqreturn_t gbus_int_handle_irq (int irq, void *dev_id,
- struct pt_regs *regs)
-{
- unsigned w;
- irqreturn_t rval = IRQ_NONE;
- unsigned gint = irq - IRQ_GINT (0);
-
- for (w = 0; w < GBUS_INT_NUM_WORDS; w++) {
- unsigned status = GBUS_INT_STATUS (w);
- unsigned enable = GBUS_INT_ENABLE (w, gint);
-
- /* Only pay attention to enabled interrupts. */
- status &= enable;
- if (status) {
- irq = IRQ_GBUS_INT (w * GBUS_INT_BITS_PER_WORD);
- do {
- /* There's an active interrupt in word
- W, find out which one, and call its
- handler. */
-
- while (! (status & 0x1)) {
- irq++;
- status >>= 1;
- }
- status &= ~0x1;
-
- /* Recursively call handle_irq to handle it. */
- handle_irq (irq, regs);
- rval = IRQ_HANDLED;
- } while (status);
- }
- }
-
- /* Toggle the `all enable' bit back and forth, which should cause
- another edge transition if there are any other interrupts
- still pending, and so result in another CPU interrupt. */
- GBUS_INT_ENABLE (0, gint) &= ~0x1;
- GBUS_INT_ENABLE (0, gint) |= 0x1;
-
- return rval;
-}
-
-\f
-/* Initialize GBUS interrupt sources. */
-
-static void irq_nop (unsigned irq) { }
-
-static unsigned gbus_int_startup_irq (unsigned irq)
-{
- unsigned gint = gbus_int_gint[irq - GBUS_INT_BASE_IRQ];
-
- if (gint_num_active_irqs[gint] == 0) {
- /* First enable the CPU interrupt. */
- int rval =
- request_irq (IRQ_GINT(gint), gbus_int_handle_irq,
- IRQF_DISABLED,
- "gbus_int_handler",
- &gint_num_active_irqs[gint]);
- if (rval != 0)
- return rval;
- }
-
- gint_num_active_irqs[gint]++;
-
- gbus_int_clear_pending_irq (irq);
- gbus_int_enable_irq (irq);
-
- return 0;
-}
-
-static void gbus_int_shutdown_irq (unsigned irq)
-{
- unsigned gint = gbus_int_gint[irq - GBUS_INT_BASE_IRQ];
-
- gbus_int_disable_irq (irq);
-
- if (--gint_num_active_irqs[gint] == 0)
- /* Disable the CPU interrupt. */
- free_irq (IRQ_GINT(gint), &gint_num_active_irqs[gint]);
-}
-
-/* Initialize HW_IRQ_TYPES for INTC-controlled irqs described in array
- INITS (which is terminated by an entry with the name field == 0). */
-void __init gbus_int_init_irq_types (struct gbus_int_irq_init *inits,
- struct hw_interrupt_type *hw_irq_types)
-{
- struct gbus_int_irq_init *init;
- for (init = inits; init->name; init++) {
- unsigned i;
- struct hw_interrupt_type *hwit = hw_irq_types++;
-
- hwit->typename = init->name;
-
- hwit->startup = gbus_int_startup_irq;
- hwit->shutdown = gbus_int_shutdown_irq;
- hwit->enable = gbus_int_enable_irq;
- hwit->disable = gbus_int_disable_irq;
- hwit->ack = irq_nop;
- hwit->end = irq_nop;
-
- /* Initialize kernel IRQ infrastructure for this interrupt. */
- init_irq_handlers(init->base, init->num, init->interval, hwit);
-
- /* Set the interrupt priorities. */
- for (i = 0; i < init->num; i++) {
- unsigned j;
- for (j = 0; j < NUM_USED_GINTS; j++)
- if (used_gint[j].priority > init->priority)
- break;
- /* Wherever we stopped looking is one past the
- GINT we want. */
- gbus_int_gint[init->base + i * init->interval
- - GBUS_INT_BASE_IRQ]
- = used_gint[j > 0 ? j - 1 : 0].gint;
- }
- }
-}
-
-\f
-/* Initialize IRQS. */
-
-/* Chip interrupts (GINTn) shared among GBUS interrupts. */
-static struct hw_interrupt_type gint_hw_itypes[NUM_USED_GINTS];
-
-
-/* GBUS interrupts themselves. */
-
-struct gbus_int_irq_init gbus_irq_inits[] __initdata = {
- /* First set defaults. */
- { "GBUS_INT", IRQ_GBUS_INT(0), IRQ_GBUS_INT_NUM, 1, 6},
- { 0 }
-};
-#define NUM_GBUS_IRQ_INITS (ARRAY_SIZE(gbus_irq_inits) - 1)
-
-static struct hw_interrupt_type gbus_hw_itypes[NUM_GBUS_IRQ_INITS];
-
-
-/* Initialize GBUS interrupts. */
-void __init gbus_int_init_irqs (void)
-{
- unsigned i;
-
- /* First initialize the shared gint interrupts. */
- for (i = 0; i < NUM_USED_GINTS; i++) {
- unsigned gint = used_gint[i].gint;
- struct v850e_intc_irq_init gint_irq_init[2];
-
- /* We initialize one GINT interrupt at a time. */
- gint_irq_init[0].name = "GINT";
- gint_irq_init[0].base = IRQ_GINT (gint);
- gint_irq_init[0].num = 1;
- gint_irq_init[0].interval = 1;
- gint_irq_init[0].priority = used_gint[i].priority;
-
- gint_irq_init[1].name = 0; /* Terminate the vector. */
-
- v850e_intc_init_irq_types (gint_irq_init, gint_hw_itypes);
- }
-
- /* Then the GBUS interrupts. */
- gbus_int_disable_irqs ();
- gbus_int_init_irq_types (gbus_irq_inits, gbus_hw_itypes);
- /* Turn on the `all enable' bits, which are ANDed with
- individual interrupt enable bits; we only want to bother with
- the latter. They are the first bit in the first word of each
- interrupt-enable area. */
- for (i = 0; i < NUM_USED_GINTS; i++)
- GBUS_INT_ENABLE (0, used_gint[i].gint) = 0x1;
-}
+++ /dev/null
-/*
- * arch/v850/kernel/head.S -- Lowest-level startup code
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <asm/clinkage.h>
-#include <asm/current.h>
-#include <asm/entry.h>
-#include <asm/thread_info.h>
-#include <asm/irq.h>
-
-
-/* Make a slightly more convenient alias for C_SYMBOL_NAME. */
-#define CSYM C_SYMBOL_NAME
-
-
- .text
-
- // Define `mach_early_init' as a weak symbol
- .global CSYM(mach_early_init)
- .weak CSYM(mach_early_init)
-
-C_ENTRY(start):
- // Make sure interrupts are turned off, just in case
- di
-
-#ifdef CONFIG_RESET_GUARD
- // See if we got here via an unexpected reset
- ld.w RESET_GUARD, r19 // Check current value of reset guard
- mov RESET_GUARD_ACTIVE, r20
- cmp r19, r20
- bne 1f // Guard was not active
-
- // If we get here, the reset guard was active. Load up some
- // interesting values as arguments, and jump to the handler.
- st.w r0, RESET_GUARD // Allow further resets to succeed
- mov lp, r6 // Arg 0: return address
- ld.b KM, r7 // Arg 1: kernel mode
- mov sp, r9 // Arg 3: stack pointer
- ld.w KSP, r19 // maybe switch to kernel stack
- cmp r7, r0 // see if already in kernel mode
- cmov z, r19, sp, sp // and switch to kernel stack if not
- GET_CURRENT_TASK(r8) // Arg 2: task pointer
- jr CSYM(unexpected_reset)
-
-1: st.w r20, RESET_GUARD // Turn on reset guard
-#endif /* CONFIG_RESET_GUARD */
-
- // Setup a temporary stack for doing pre-initialization function calls.
- //
- // We can't use the initial kernel stack, because (1) it may be
- // located in memory we're not allowed to touch, and (2) since
- // it's in the data segment, calling memcpy to initialize that
- // area from ROM will overwrite memcpy's return address.
- mov hilo(CSYM(_init_stack_end) - 4), sp
-
- // See if there's a platform-specific early-initialization routine
- // defined; it's a weak symbol, so it will have an address of zero if
- // there's not.
- mov hilo(CSYM(mach_early_init)), r6
- cmp r6, r0
- bz 3f
-
- // There is one, so call it. If this function is written in C, it
- // should be very careful -- the stack pointer is valid, but very
- // little else is (e.g., bss is not zeroed yet, and initialized data
- // hasn't been).
- jarl 2f, lp // first figure out return address
-2: add 3f - ., lp
- jmp [r6] // do call
-3:
-
-#ifdef CONFIG_ROM_KERNEL
- // Copy the data area from ROM to RAM
- mov hilo(CSYM(_rom_copy_dst_start)), r6
- mov hilo(CSYM(_rom_copy_src_start)), r7
- mov hilo(CSYM(_rom_copy_dst_end)), r8
- sub r6, r8
- jarl CSYM(memcpy), lp
-#endif
-
- // Load the initial thread's stack, and current task pointer (in r16)
- mov hilo(CSYM(init_thread_union)), r19
- movea THREAD_SIZE, r19, sp
- ld.w TI_TASK[r19], CURRENT_TASK
-
-#ifdef CONFIG_TIME_BOOTUP
- /* This stuff must come after mach_early_init, because interrupts may
- not work until after its been called. */
- jarl CSYM(highres_timer_reset), lp
- jarl CSYM(highres_timer_start), lp
-#endif
-
- // Kernel stack pointer save location
- st.w sp, KSP
-
- // Assert that we're in `kernel mode'
- mov 1, r19
- st.w r19, KM
-
-#ifdef CONFIG_ZERO_BSS
- // Zero bss area, since we can't rely upon any loader to do so
- mov hilo(CSYM(_sbss)), r6
- mov r0, r7
- mov hilo(CSYM(_ebss)), r8
- sub r6, r8
- jarl CSYM(memset), lp
-#endif
-
- // What happens if the main kernel function returns (it shouldn't)
- mov hilo(CSYM(machine_halt)), lp
-
- // Start the linux kernel. We use an indirect jump to get extra
- // range, because on some platforms this initial startup code
- // (and the associated platform-specific code in mach_early_init)
- // are located far away from the main kernel, e.g. so that they
- // can initialize RAM first and copy the kernel or something.
- mov hilo(CSYM(start_kernel)), r12
- jmp [r12]
-C_END(start)
+++ /dev/null
-/*
- * arch/v850/kernel/highres_timer.c -- High resolution timing routines
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <asm/system.h>
-#include <asm/v850e_timer_d.h>
-#include <asm/highres_timer.h>
-
-#define HIGHRES_TIMER_USEC_SHIFT 12
-
-/* Pre-calculated constant used for converting ticks to real time
- units. We initialize it to prevent it being put into BSS. */
-static u32 highres_timer_usec_prescale = 1;
-
-void highres_timer_slow_tick_irq (void) __attribute__ ((noreturn));
-void highres_timer_slow_tick_irq (void)
-{
- /* This is an interrupt handler, so it must be very careful to
- not to trash any registers. At this point, the stack-pointer
- (r3) has been saved in the chip ram location ENTRY_SP by the
- interrupt vector, so we can use it as a scratch register; we
- must also restore it before returning. */
- asm ("ld.w %0[r0], sp;"
- "add 1, sp;"
- "st.w sp, %0[r0];"
- "ld.w %1[r0], sp;" /* restore pre-irq stack-pointer */
- "reti"
- ::
- "i" (HIGHRES_TIMER_SLOW_TICKS_ADDR),
- "i" (ENTRY_SP_ADDR)
- : "memory");
-}
-
-void highres_timer_reset (void)
-{
- V850E_TIMER_D_TMD (HIGHRES_TIMER_TIMER_D_UNIT) = 0;
- HIGHRES_TIMER_SLOW_TICKS = 0;
-}
-
-void highres_timer_start (void)
-{
- u32 fast_tick_rate;
-
- /* Start hardware timer. */
- v850e_timer_d_configure (HIGHRES_TIMER_TIMER_D_UNIT,
- HIGHRES_TIMER_SLOW_TICK_RATE);
-
- fast_tick_rate =
- (V850E_TIMER_D_BASE_FREQ
- >> V850E_TIMER_D_DIVLOG2 (HIGHRES_TIMER_TIMER_D_UNIT));
-
- /* The obvious way of calculating microseconds from fast ticks
- is to do:
-
- usec = fast_ticks * 10^6 / fast_tick_rate
-
- However, divisions are much slower than multiplications, and
- the above calculation can overflow, so we do this instead:
-
- usec = fast_ticks * (10^6 * 2^12 / fast_tick_rate) / 2^12
-
- since we can pre-calculate (10^6 * (2^12 / fast_tick_rate))
- and use a shift for dividing by 2^12, this avoids division,
- and is almost as accurate (it differs by about 2 microseconds
- at the extreme value of the fast-tick counter's ranger). */
- highres_timer_usec_prescale = ((1000000 << HIGHRES_TIMER_USEC_SHIFT)
- / fast_tick_rate);
-
- /* Enable the interrupt (which is hardwired to this use), and
- give it the highest priority. */
- V850E_INTC_IC (IRQ_INTCMD (HIGHRES_TIMER_TIMER_D_UNIT)) = 0;
-}
-
-void highres_timer_stop (void)
-{
- /* Stop the timer. */
- V850E_TIMER_D_TMCD (HIGHRES_TIMER_TIMER_D_UNIT) =
- V850E_TIMER_D_TMCD_CAE;
- /* Disable its interrupt, just in case. */
- v850e_intc_disable_irq (IRQ_INTCMD (HIGHRES_TIMER_TIMER_D_UNIT));
-}
-
-inline void highres_timer_read_ticks (u32 *slow_ticks, u32 *fast_ticks)
-{
- int flags;
- u32 fast_ticks_1, fast_ticks_2, _slow_ticks;
-
- local_irq_save (flags);
- fast_ticks_1 = V850E_TIMER_D_TMD (HIGHRES_TIMER_TIMER_D_UNIT);
- _slow_ticks = HIGHRES_TIMER_SLOW_TICKS;
- fast_ticks_2 = V850E_TIMER_D_TMD (HIGHRES_TIMER_TIMER_D_UNIT);
- local_irq_restore (flags);
-
- if (fast_ticks_2 < fast_ticks_1)
- _slow_ticks++;
-
- *slow_ticks = _slow_ticks;
- *fast_ticks = fast_ticks_2;
-}
-
-inline void highres_timer_ticks_to_timeval (u32 slow_ticks, u32 fast_ticks,
- struct timeval *tv)
-{
- unsigned long sec, sec_rem, usec;
-
- usec = ((fast_ticks * highres_timer_usec_prescale)
- >> HIGHRES_TIMER_USEC_SHIFT);
-
- sec = slow_ticks / HIGHRES_TIMER_SLOW_TICK_RATE;
- sec_rem = slow_ticks % HIGHRES_TIMER_SLOW_TICK_RATE;
-
- usec += sec_rem * (1000000 / HIGHRES_TIMER_SLOW_TICK_RATE);
-
- tv->tv_sec = sec;
- tv->tv_usec = usec;
-}
-
-void highres_timer_read (struct timeval *tv)
-{
- u32 fast_ticks, slow_ticks;
- highres_timer_read_ticks (&slow_ticks, &fast_ticks);
- highres_timer_ticks_to_timeval (slow_ticks, fast_ticks, tv);
-}
+++ /dev/null
-/*
- * arch/v850/kernel/init_task.c -- Initial task/thread structures
- *
- * Copyright (C) 2002,03 NEC Electronics Corporation
- * Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- */
-
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/init_task.h>
-#include <linux/fs.h>
-#include <linux/mqueue.h>
-
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-
-static struct fs_struct init_fs = INIT_FS;
-static struct signal_struct init_signals = INIT_SIGNALS (init_signals);
-static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
-struct mm_struct init_mm = INIT_MM (init_mm);
-
-EXPORT_SYMBOL(init_mm);
-
-/*
- * Initial task structure.
- *
- * All other task structs will be allocated on slabs in fork.c
- */
-struct task_struct init_task = INIT_TASK (init_task);
-
-EXPORT_SYMBOL(init_task);
-
-/*
- * Initial thread structure.
- *
- * We need to make sure that this is 8192-byte aligned due to the
- * way process stacks are handled. This is done by having a special
- * "init_task" linker map entry.
- */
-union thread_union init_thread_union
- __attribute__((__section__(".data.init_task"))) =
- { INIT_THREAD_INFO(init_task) };
+++ /dev/null
-/*
- * arch/v850/kernel/intv.S -- Interrupt vectors
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <asm/clinkage.h>
-#include <asm/irq.h>
-#include <asm/machdep.h>
-#include <asm/entry.h>
-
-#ifdef CONFIG_V850E_HIGHRES_TIMER
-#include <asm/highres_timer.h>
-#endif
-
-/* Jump to an interrupt/trap handler. These handlers (defined in entry.S)
- expect the stack-pointer to be saved in ENTRY_SP, so we use sp to do an
- indirect jump (which avoids problems when the handler is more than a signed
- 22-bit offset away). */
-#define JUMP_TO_HANDLER(name, sp_save_loc) \
- st.w sp, sp_save_loc; \
- mov hilo(name), sp; \
- jmp [sp]
-
-
- /* Reset vector. */
- .section .intv.reset, "ax"
- .org 0x0
- mov hilo(C_SYMBOL_NAME(start)), r1;
- jmp [r1]
-
-
- /* Generic interrupt vectors. */
- .section .intv.common, "ax"
- .balign 0x10
- JUMP_TO_HANDLER (nmi, NMI_ENTRY_SP) // 0x10 - NMI0
- .balign 0x10
- JUMP_TO_HANDLER (nmi, NMI_ENTRY_SP) // 0x20 - NMI1
- .balign 0x10
- JUMP_TO_HANDLER (nmi, NMI_ENTRY_SP) // 0x30 - NMI2
-
- .balign 0x10
- JUMP_TO_HANDLER (trap, ENTRY_SP) // 0x40 - TRAP0n
- .balign 0x10
- JUMP_TO_HANDLER (trap, ENTRY_SP) // 0x50 - TRAP1n
-
- .balign 0x10
- JUMP_TO_HANDLER (dbtrap, ENTRY_SP) // 0x60 - Illegal op / DBTRAP insn
-
-
- /* Hardware interrupt vectors. */
- .section .intv.mach, "ax"
- .org 0x0
-
-#if defined (CONFIG_V850E_HIGHRES_TIMER) && defined (IRQ_INTCMD)
-
- /* Interrupts before the highres timer interrupt. */
- .rept IRQ_INTCMD (HIGHRES_TIMER_TIMER_D_UNIT)
- .balign 0x10
- JUMP_TO_HANDLER (irq, ENTRY_SP)
- .endr
-
- /* The highres timer interrupt. */
- .balign 0x10
- JUMP_TO_HANDLER (C_SYMBOL_NAME (highres_timer_slow_tick_irq), ENTRY_SP)
-
- /* Interrupts after the highres timer interrupt. */
- .rept NUM_CPU_IRQS - IRQ_INTCMD (HIGHRES_TIMER_TIMER_D_UNIT) - 1
- .balign 0x10
- JUMP_TO_HANDLER (irq, ENTRY_SP)
- .endr
-
-#else /* No highres timer */
-
- .rept NUM_CPU_IRQS
- .balign 0x10
- JUMP_TO_HANDLER (irq, ENTRY_SP)
- .endr
-
-#endif /* Highres timer */
+++ /dev/null
-/*
- * arch/v850/kernel/irq.c -- High-level interrupt handling
- *
- * Copyright (C) 2001,02,03,04,05 NEC Electronics Corporation
- * Copyright (C) 2001,02,03,04,05 Miles Bader <miles@gnu.org>
- * Copyright (C) 1994-2000 Ralf Baechle
- * Copyright (C) 1992 Linus Torvalds
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * This file was was derived from the mips version, arch/mips/kernel/irq.c
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/irq.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/kernel_stat.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/random.h>
-#include <linux/seq_file.h>
-
-#include <asm/system.h>
-
-/*
- * 'what should we do if we get a hw irq event on an illegal vector'.
- * each architecture has to answer this themselves, it doesn't deserve
- * a generic callback i think.
- */
-void ack_bad_irq(unsigned int irq)
-{
- printk("received IRQ %d with unknown interrupt type\n", irq);
-}
-
-volatile unsigned long irq_err_count, spurious_count;
-
-/*
- * Generic, controller-independent functions:
- */
-
-int show_interrupts(struct seq_file *p, void *v)
-{
- int irq = *(loff_t *) v;
-
- if (irq == 0) {
- int cpu;
- seq_puts(p, " ");
- for (cpu=0; cpu < 1 /*smp_num_cpus*/; cpu++)
- seq_printf(p, "CPU%d ", cpu);
- seq_putc(p, '\n');
- }
-
- if (irq < NR_IRQS) {
- unsigned long flags;
- struct irqaction *action;
-
- spin_lock_irqsave(&irq_desc[irq].lock, flags);
-
- action = irq_desc[irq].action;
- if (action) {
- int j;
- int count = 0;
- int num = -1;
- const char *type_name = irq_desc[irq].chip->typename;
-
- for (j = 0; j < NR_IRQS; j++)
- if (irq_desc[j].chip->typename == type_name){
- if (irq == j)
- num = count;
- count++;
- }
-
- seq_printf(p, "%3d: ",irq);
- seq_printf(p, "%10u ", kstat_irqs(irq));
- if (count > 1) {
- int prec = (num >= 100 ? 3 : num >= 10 ? 2 : 1);
- seq_printf(p, " %*s%d", 14 - prec,
- type_name, num);
- } else
- seq_printf(p, " %14s", type_name);
-
- seq_printf(p, " %s", action->name);
- for (action=action->next; action; action = action->next)
- seq_printf(p, ", %s", action->name);
- seq_putc(p, '\n');
- }
-
- spin_unlock_irqrestore(&irq_desc[irq].lock, flags);
- } else if (irq == NR_IRQS)
- seq_printf(p, "ERR: %10lu\n", irq_err_count);
-
- return 0;
-}
-
-/* Handle interrupt IRQ. REGS are the registers at the time of ther
- interrupt. */
-unsigned int handle_irq (int irq, struct pt_regs *regs)
-{
- irq_enter();
- __do_IRQ(irq, regs);
- irq_exit();
- return 1;
-}
-
-/* Initialize irq handling for IRQs.
- BASE_IRQ, BASE_IRQ+INTERVAL, ..., BASE_IRQ+NUM*INTERVAL
- to IRQ_TYPE. An IRQ_TYPE of 0 means to use a generic interrupt type. */
-void __init
-init_irq_handlers (int base_irq, int num, int interval,
- struct hw_interrupt_type *irq_type)
-{
- while (num-- > 0) {
- irq_desc[base_irq].status = IRQ_DISABLED;
- irq_desc[base_irq].action = NULL;
- irq_desc[base_irq].depth = 1;
- irq_desc[base_irq].chip = irq_type;
- base_irq += interval;
- }
-}
+++ /dev/null
-/*
- * arch/v850/kernel/ma.c -- V850E/MA series of cpu chips
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/bootmem.h>
-#include <linux/irq.h>
-
-#include <asm/atomic.h>
-#include <asm/page.h>
-#include <asm/machdep.h>
-#include <asm/v850e_timer_d.h>
-
-#include "mach.h"
-
-void __init mach_sched_init (struct irqaction *timer_action)
-{
- /* Start hardware timer. */
- v850e_timer_d_configure (0, HZ);
- /* Install timer interrupt handler. */
- setup_irq (IRQ_INTCMD(0), timer_action);
-}
-
-static struct v850e_intc_irq_init irq_inits[] = {
- { "IRQ", 0, NUM_MACH_IRQS, 1, 7 },
- { "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 5 },
- { "DMA", IRQ_INTDMA(0), IRQ_INTDMA_NUM, 1, 2 },
- { "CSI", IRQ_INTCSI(0), IRQ_INTCSI_NUM, 4, 4 },
- { "SER", IRQ_INTSER(0), IRQ_INTSER_NUM, 4, 3 },
- { "SR", IRQ_INTSR(0), IRQ_INTSR_NUM, 4, 4 },
- { "ST", IRQ_INTST(0), IRQ_INTST_NUM, 4, 5 },
- { 0 }
-};
-#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1)
-
-static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS];
-
-/* Initialize MA chip interrupts. */
-void __init ma_init_irqs (void)
-{
- v850e_intc_init_irq_types (irq_inits, hw_itypes);
-}
-
-/* Called before configuring an on-chip UART. */
-void ma_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud)
-{
- /* We only know about the first two UART channels (though
- specific chips may have more). */
- if (chan < 2) {
- unsigned bits = 0x3 << (chan * 3);
- /* Specify that the relevant pins on the chip should do
- serial I/O, not direct I/O. */
- MA_PORT4_PMC |= bits;
- /* Specify that we're using the UART, not the CSI device. */
- MA_PORT4_PFC |= bits;
- }
-}
+++ /dev/null
-/*
- * arch/v850/kernel/mach.c -- Defaults for some things defined by "mach.h"
- *
- * Copyright (C) 2001 NEC Corporation
- * Copyright (C) 2001 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include "mach.h"
-
-/* Called with each timer tick, if non-zero. */
-void (*mach_tick)(void) = 0;
+++ /dev/null
-/*
- * arch/v850/kernel/mach.h -- Machine-dependent functions used by v850 port
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_MACH_H__
-#define __V850_MACH_H__
-
-#include <linux/kernel.h>
-#include <linux/time.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/fs.h>
-#include <linux/seq_file.h>
-
-#include <asm/ptrace.h>
-#include <asm/entry.h>
-#include <asm/clinkage.h>
-
-void mach_setup (char **cmdline);
-void mach_gettimeofday (struct timespec *tv);
-void mach_sched_init (struct irqaction *timer_action);
-void mach_get_physical_ram (unsigned long *ram_start, unsigned long *ram_len);
-void mach_init_irqs (void);
-
-/* If defined, is called very early in the kernel initialization. The
- stack pointer is valid, but very little has been initialized (e.g.,
- bss is not zeroed yet) when this is called, so care must taken. */
-void mach_early_init (void);
-
-/* If defined, called after the bootmem allocator has been initialized,
- to allow the platform-dependent code to reserve any areas of RAM that
- the kernel shouldn't touch. */
-void mach_reserve_bootmem (void) __attribute__ ((__weak__));
-
-/* Called with each timer tick, if non-zero. */
-extern void (*mach_tick) (void);
-
-/* The following establishes aliases for various mach_ functions to the
- name by which the rest of the kernel calls them. These statements
- should only have an effect in the file that defines the actual functions. */
-#define MACH_ALIAS(to, from) \
- asm (".global " macrology_stringify (C_SYMBOL_NAME (to)) ";" \
- macrology_stringify (C_SYMBOL_NAME (to)) \
- " = " macrology_stringify (C_SYMBOL_NAME (from)))
-/* e.g.: MACH_ALIAS (kernel_name, arch_spec_name); */
-
-#endif /* __V850_MACH_H__ */
+++ /dev/null
-/*
- * arch/v850/kernel/me2.c -- V850E/ME2 chip-specific support
- *
- * Copyright (C) 2003 NEC Corporation
- * Copyright (C) 2003 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/bootmem.h>
-#include <linux/irq.h>
-
-#include <asm/atomic.h>
-#include <asm/page.h>
-#include <asm/machdep.h>
-#include <asm/v850e_timer_d.h>
-
-#include "mach.h"
-
-void __init mach_sched_init (struct irqaction *timer_action)
-{
- /* Start hardware timer. */
- v850e_timer_d_configure (0, HZ);
- /* Install timer interrupt handler. */
- setup_irq (IRQ_INTCMD(0), timer_action);
-}
-
-static struct v850e_intc_irq_init irq_inits[] = {
- { "IRQ", 0, NUM_CPU_IRQS, 1, 7 },
- { "INTP", IRQ_INTP(0), IRQ_INTP_NUM, 1, 5 },
- { "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 3 },
- { "UBTIRE", IRQ_INTUBTIRE(0), IRQ_INTUBTIRE_NUM, 5, 4 },
- { "UBTIR", IRQ_INTUBTIR(0), IRQ_INTUBTIR_NUM, 5, 4 },
- { "UBTIT", IRQ_INTUBTIT(0), IRQ_INTUBTIT_NUM, 5, 4 },
- { "UBTIF", IRQ_INTUBTIF(0), IRQ_INTUBTIF_NUM, 5, 4 },
- { "UBTITO", IRQ_INTUBTITO(0), IRQ_INTUBTITO_NUM, 5, 4 },
- { 0 }
-};
-#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1)
-
-static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS];
-
-/* Initialize V850E/ME2 chip interrupts. */
-void __init me2_init_irqs (void)
-{
- v850e_intc_init_irq_types (irq_inits, hw_itypes);
-}
-
-/* Called before configuring an on-chip UART. */
-void me2_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud)
-{
- if (chan == 0) {
- /* Specify that the relevant pins on the chip should do
- serial I/O, not direct I/O. */
- ME2_PORT1_PMC |= 0xC;
- /* Specify that we're using the UART, not the CSI device. */
- ME2_PORT1_PFC |= 0xC;
- } else if (chan == 1) {
- /* Specify that the relevant pins on the chip should do
- serial I/O, not direct I/O. */
- ME2_PORT2_PMC |= 0x6;
- /* Specify that we're using the UART, not the CSI device. */
- ME2_PORT2_PFC |= 0x6;
- }
-}
+++ /dev/null
-/*
- * arch/v850/kernel/memcons.c -- Console I/O to a memory buffer
- *
- * Copyright (C) 2001,02 NEC Corporation
- * Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/console.h>
-#include <linux/tty.h>
-#include <linux/tty_driver.h>
-#include <linux/init.h>
-
-/* If this device is enabled, the linker map should define start and
- end points for its buffer. */
-extern char memcons_output[], memcons_output_end;
-
-/* Current offset into the buffer. */
-static unsigned long memcons_offs = 0;
-
-/* Spinlock protecting memcons_offs. */
-static DEFINE_SPINLOCK(memcons_lock);
-
-
-static size_t write (const char *buf, size_t len)
-{
- unsigned long flags;
- char *point;
-
- spin_lock_irqsave (memcons_lock, flags);
-
- point = memcons_output + memcons_offs;
- if (point + len >= &memcons_output_end) {
- len = &memcons_output_end - point;
- memcons_offs = 0;
- } else
- memcons_offs += len;
-
- spin_unlock_irqrestore (memcons_lock, flags);
-
- memcpy (point, buf, len);
-
- return len;
-}
-
-\f
-/* Low-level console. */
-
-static void memcons_write (struct console *co, const char *buf, unsigned len)
-{
- while (len > 0)
- len -= write (buf, len);
-}
-
-static struct tty_driver *tty_driver;
-
-static struct tty_driver *memcons_device (struct console *co, int *index)
-{
- *index = co->index;
- return tty_driver;
-}
-
-static struct console memcons =
-{
- .name = "memcons",
- .write = memcons_write,
- .device = memcons_device,
- .flags = CON_PRINTBUFFER,
- .index = -1,
-};
-
-void memcons_setup (void)
-{
- register_console (&memcons);
- printk (KERN_INFO "Console: static memory buffer (memcons)\n");
-}
-\f
-/* Higher level TTY interface. */
-
-int memcons_tty_open (struct tty_struct *tty, struct file *filp)
-{
- return 0;
-}
-
-int memcons_tty_write (struct tty_struct *tty, const unsigned char *buf, int len)
-{
- return write (buf, len);
-}
-
-int memcons_tty_write_room (struct tty_struct *tty)
-{
- return &memcons_output_end - (memcons_output + memcons_offs);
-}
-
-int memcons_tty_chars_in_buffer (struct tty_struct *tty)
-{
- /* We have no buffer. */
- return 0;
-}
-
-static const struct tty_operations ops = {
- .open = memcons_tty_open,
- .write = memcons_tty_write,
- .write_room = memcons_tty_write_room,
- .chars_in_buffer = memcons_tty_chars_in_buffer,
-};
-
-int __init memcons_tty_init (void)
-{
- int err;
- struct tty_driver *driver = alloc_tty_driver(1);
- if (!driver)
- return -ENOMEM;
-
- driver->name = "memcons";
- driver->major = TTY_MAJOR;
- driver->minor_start = 64;
- driver->type = TTY_DRIVER_TYPE_SYSCONS;
- driver->init_termios = tty_std_termios;
- tty_set_operations(driver, &ops);
- err = tty_register_driver(driver);
- if (err) {
- put_tty_driver(driver);
- return err;
- }
- tty_driver = driver;
- return 0;
-}
-__initcall (memcons_tty_init);
+++ /dev/null
-/*
- * arch/v850/kernel/module.c -- Architecture-specific module functions
- *
- * Copyright (C) 2002,03 NEC Electronics Corporation
- * Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
- * Copyright (C) 2001,03 Rusty Russell
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- *
- * Derived in part from arch/ppc/kernel/module.c
- */
-
-#include <linux/kernel.h>
-#include <linux/vmalloc.h>
-#include <linux/moduleloader.h>
-#include <linux/elf.h>
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(fmt , ...)
-#endif
-
-void *module_alloc (unsigned long size)
-{
- return size == 0 ? 0 : vmalloc (size);
-}
-
-void module_free (struct module *mod, void *module_region)
-{
- vfree (module_region);
- /* FIXME: If module_region == mod->init_region, trim exception
- table entries. */
-}
-
-int module_finalize (const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs,
- struct module *mod)
-{
- return 0;
-}
-
-/* Count how many different relocations (different symbol, different
- addend) */
-static unsigned int count_relocs(const Elf32_Rela *rela, unsigned int num)
-{
- unsigned int i, j, ret = 0;
-
- /* Sure, this is order(n^2), but it's usually short, and not
- time critical */
- for (i = 0; i < num; i++) {
- for (j = 0; j < i; j++) {
- /* If this addend appeared before, it's
- already been counted */
- if (ELF32_R_SYM(rela[i].r_info)
- == ELF32_R_SYM(rela[j].r_info)
- && rela[i].r_addend == rela[j].r_addend)
- break;
- }
- if (j == i) ret++;
- }
- return ret;
-}
-
-/* Get the potential trampolines size required of the init and
- non-init sections */
-static unsigned long get_plt_size(const Elf32_Ehdr *hdr,
- const Elf32_Shdr *sechdrs,
- const char *secstrings,
- int is_init)
-{
- unsigned long ret = 0;
- unsigned i;
-
- /* Everything marked ALLOC (this includes the exported
- symbols) */
- for (i = 1; i < hdr->e_shnum; i++) {
- /* If it's called *.init*, and we're not init, we're
- not interested */
- if ((strstr(secstrings + sechdrs[i].sh_name, ".init") != 0)
- != is_init)
- continue;
-
- if (sechdrs[i].sh_type == SHT_RELA) {
- DEBUGP("Found relocations in section %u\n", i);
- DEBUGP("Ptr: %p. Number: %u\n",
- (void *)hdr + sechdrs[i].sh_offset,
- sechdrs[i].sh_size / sizeof(Elf32_Rela));
- ret += count_relocs((void *)hdr
- + sechdrs[i].sh_offset,
- sechdrs[i].sh_size
- / sizeof(Elf32_Rela))
- * sizeof(struct v850_plt_entry);
- }
- }
-
- return ret;
-}
-
-int module_frob_arch_sections(Elf32_Ehdr *hdr,
- Elf32_Shdr *sechdrs,
- char *secstrings,
- struct module *me)
-{
- unsigned int i;
-
- /* Find .plt and .pltinit sections */
- for (i = 0; i < hdr->e_shnum; i++) {
- if (strcmp(secstrings + sechdrs[i].sh_name, ".init.plt") == 0)
- me->arch.init_plt_section = i;
- else if (strcmp(secstrings + sechdrs[i].sh_name, ".plt") == 0)
- me->arch.core_plt_section = i;
- }
- if (!me->arch.core_plt_section || !me->arch.init_plt_section) {
- printk("Module doesn't contain .plt or .plt.init sections.\n");
- return -ENOEXEC;
- }
-
- /* Override their sizes */
- sechdrs[me->arch.core_plt_section].sh_size
- = get_plt_size(hdr, sechdrs, secstrings, 0);
- sechdrs[me->arch.init_plt_section].sh_size
- = get_plt_size(hdr, sechdrs, secstrings, 1);
- return 0;
-}
-
-int apply_relocate (Elf32_Shdr *sechdrs, const char *strtab,
- unsigned int symindex, unsigned int relsec,
- struct module *mod)
-{
- printk ("Barf\n");
- return -ENOEXEC;
-}
-
-/* Set up a trampoline in the PLT to bounce us to the distant function */
-static uint32_t do_plt_call (void *location, Elf32_Addr val,
- Elf32_Shdr *sechdrs, struct module *mod)
-{
- struct v850_plt_entry *entry;
- /* Instructions used to do the indirect jump. */
- uint32_t tramp[2];
-
- /* We have to trash a register, so we assume that any control
- transfer more than 21-bits away must be a function call
- (so we can use a call-clobbered register). */
- tramp[0] = 0x0621 + ((val & 0xffff) << 16); /* mov sym, r1 ... */
- tramp[1] = ((val >> 16) & 0xffff) + 0x610000; /* ...; jmp r1 */
-
- /* Init, or core PLT? */
- if (location >= mod->module_core
- && location < mod->module_core + mod->core_size)
- entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr;
- else
- entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr;
-
- /* Find this entry, or if that fails, the next avail. entry */
- while (entry->tramp[0])
- if (entry->tramp[0] == tramp[0] && entry->tramp[1] == tramp[1])
- return (uint32_t)entry;
- else
- entry++;
-
- entry->tramp[0] = tramp[0];
- entry->tramp[1] = tramp[1];
-
- return (uint32_t)entry;
-}
-
-int apply_relocate_add (Elf32_Shdr *sechdrs, const char *strtab,
- unsigned int symindex, unsigned int relsec,
- struct module *mod)
-{
- unsigned int i;
- Elf32_Rela *rela = (void *)sechdrs[relsec].sh_addr;
-
- DEBUGP ("Applying relocate section %u to %u\n", relsec,
- sechdrs[relsec].sh_info);
-
- for (i = 0; i < sechdrs[relsec].sh_size / sizeof (*rela); i++) {
- /* This is where to make the change */
- uint32_t *loc
- = ((void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
- + rela[i].r_offset);
- /* This is the symbol it is referring to. Note that all
- undefined symbols have been resolved. */
- Elf32_Sym *sym
- = ((Elf32_Sym *)sechdrs[symindex].sh_addr
- + ELF32_R_SYM (rela[i].r_info));
- uint32_t val = sym->st_value + rela[i].r_addend;
-
- switch (ELF32_R_TYPE (rela[i].r_info)) {
- case R_V850_32:
- /* We write two shorts instead of a long because even
- 32-bit insns only need half-word alignment, but
- 32-bit data writes need to be long-word aligned. */
- val += ((uint16_t *)loc)[0];
- val += ((uint16_t *)loc)[1] << 16;
- ((uint16_t *)loc)[0] = val & 0xffff;
- ((uint16_t *)loc)[1] = (val >> 16) & 0xffff;
- break;
-
- case R_V850_22_PCREL:
- /* Maybe jump indirectly via a PLT table entry. */
- if ((int32_t)(val - (uint32_t)loc) > 0x1fffff
- || (int32_t)(val - (uint32_t)loc) < -0x200000)
- val = do_plt_call (loc, val, sechdrs, mod);
-
- val -= (uint32_t)loc;
-
- /* We write two shorts instead of a long because
- even 32-bit insns only need half-word alignment,
- but 32-bit data writes need to be long-word
- aligned. */
- ((uint16_t *)loc)[0] =
- (*(uint16_t *)loc & 0xffc0) /* opcode + reg */
- | ((val >> 16) & 0xffc03f); /* offs high */
- ((uint16_t *)loc)[1] =
- (val & 0xffff); /* offs low */
- break;
-
- default:
- printk (KERN_ERR "module %s: Unknown reloc: %u\n",
- mod->name, ELF32_R_TYPE (rela[i].r_info));
- return -ENOEXEC;
- }
- }
-
- return 0;
-}
-
-void
-module_arch_cleanup(struct module *mod)
-{
-}
+++ /dev/null
-/*
- * arch/v850/kernel/process.c -- Arch-dependent process handling
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/reboot.h>
-
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/pgtable.h>
-
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
-extern void ret_from_fork (void);
-
-
-/* The idle loop. */
-static void default_idle (void)
-{
- while (! need_resched ())
- asm ("halt; nop; nop; nop; nop; nop" ::: "cc");
-}
-
-void (*idle)(void) = default_idle;
-
-/*
- * The idle thread. There's no useful work to be
- * done, so just try to conserve power and have a
- * low exit latency (ie sit in a loop waiting for
- * somebody to say that they'd like to reschedule)
- */
-void cpu_idle (void)
-{
- /* endless idle loop with no priority at all */
- while (1) {
- while (!need_resched())
- (*idle) ();
-
- preempt_enable_no_resched();
- schedule();
- preempt_disable();
- }
-}
-
-/*
- * This is the mechanism for creating a new kernel thread.
- *
- * NOTE! Only a kernel-only process (ie the swapper or direct descendants who
- * haven't done an "execve()") should use this: it will work within a system
- * call from a "real" process, but the process memory space will not be free'd
- * until both the parent and the child have exited.
- */
-int kernel_thread (int (*fn)(void *), void *arg, unsigned long flags)
-{
- register mm_segment_t fs = get_fs ();
- register unsigned long syscall asm (SYSCALL_NUM);
- register unsigned long arg0 asm (SYSCALL_ARG0);
- register unsigned long ret asm (SYSCALL_RET);
-
- set_fs (KERNEL_DS);
-
- /* Clone this thread. Note that we don't pass the clone syscall's
- second argument -- it's ignored for calls from kernel mode (the
- child's SP is always set to the top of the kernel stack). */
- arg0 = flags | CLONE_VM;
- syscall = __NR_clone;
- asm volatile ("trap " SYSCALL_SHORT_TRAP
- : "=r" (ret), "=r" (syscall)
- : "1" (syscall), "r" (arg0)
- : SYSCALL_SHORT_CLOBBERS);
-
- if (ret == 0) {
- /* In child thread, call FN and exit. */
- arg0 = (*fn) (arg);
- syscall = __NR_exit;
- asm volatile ("trap " SYSCALL_SHORT_TRAP
- : "=r" (ret), "=r" (syscall)
- : "1" (syscall), "r" (arg0)
- : SYSCALL_SHORT_CLOBBERS);
- }
-
- /* In parent. */
- set_fs (fs);
-
- return ret;
-}
-
-void flush_thread (void)
-{
- set_fs (USER_DS);
-}
-
-int copy_thread (int nr, unsigned long clone_flags,
- unsigned long stack_start, unsigned long stack_size,
- struct task_struct *p, struct pt_regs *regs)
-{
- /* Start pushing stuff from the top of the child's kernel stack. */
- unsigned long orig_ksp = task_tos(p);
- unsigned long ksp = orig_ksp;
- /* We push two `state save' stack fames (see entry.S) on the new
- kernel stack:
- 1) The innermost one is what switch_thread would have
- pushed, and is used when we context switch to the child
- thread for the first time. It's set up to return to
- ret_from_fork in entry.S.
- 2) The outermost one (nearest the top) is what a syscall
- trap would have pushed, and is set up to return to the
- same location as the parent thread, but with a return
- value of 0. */
- struct pt_regs *child_switch_regs, *child_trap_regs;
-
- /* Trap frame. */
- ksp -= STATE_SAVE_SIZE;
- child_trap_regs = (struct pt_regs *)(ksp + STATE_SAVE_PT_OFFSET);
- /* Switch frame. */
- ksp -= STATE_SAVE_SIZE;
- child_switch_regs = (struct pt_regs *)(ksp + STATE_SAVE_PT_OFFSET);
-
- /* First copy parent's register state to child. */
- *child_switch_regs = *regs;
- *child_trap_regs = *regs;
-
- /* switch_thread returns to the restored value of the lp
- register (r31), so we make that the place where we want to
- jump when the child thread begins running. */
- child_switch_regs->gpr[GPR_LP] = (v850_reg_t)ret_from_fork;
-
- if (regs->kernel_mode)
- /* Since we're returning to kernel-mode, make sure the child's
- stored kernel stack pointer agrees with what the actual
- stack pointer will be at that point (the trap return code
- always restores the SP, even when returning to
- kernel-mode). */
- child_trap_regs->gpr[GPR_SP] = orig_ksp;
- else
- /* Set the child's user-mode stack-pointer (the name
- `stack_start' is a misnomer, it's just the initial SP
- value). */
- child_trap_regs->gpr[GPR_SP] = stack_start;
-
- /* Thread state for the child (everything else is on the stack). */
- p->thread.ksp = ksp;
-
- return 0;
-}
-
-/*
- * sys_execve() executes a new program.
- */
-int sys_execve (char *name, char **argv, char **envp, struct pt_regs *regs)
-{
- char *filename = getname (name);
- int error = PTR_ERR (filename);
-
- if (! IS_ERR (filename)) {
- error = do_execve (filename, argv, envp, regs);
- putname (filename);
- }
-
- return error;
-}
-
-
-/*
- * These bracket the sleeping functions..
- */
-#define first_sched ((unsigned long)__sched_text_start)
-#define last_sched ((unsigned long)__sched_text_end)
-
-unsigned long get_wchan (struct task_struct *p)
-{
-#if 0 /* Barf. Figure out the stack-layout later. XXX */
- unsigned long fp, pc;
- int count = 0;
-
- if (!p || p == current || p->state == TASK_RUNNING)
- return 0;
-
- pc = thread_saved_pc (p);
-
- /* This quite disgusting function walks up the stack, following
- saved return address, until it something that's out of bounds
- (as defined by `first_sched' and `last_sched'). It then
- returns the last PC that was in-bounds. */
- do {
- if (fp < stack_page + sizeof (struct task_struct) ||
- fp >= 8184+stack_page)
- return 0;
- pc = ((unsigned long *)fp)[1];
- if (pc < first_sched || pc >= last_sched)
- return pc;
- fp = *(unsigned long *) fp;
- } while (count++ < 16);
-#endif
-
- return 0;
-}
+++ /dev/null
-/*
- * arch/v850/kernel/procfs.c -- Introspection functions for /proc filesystem
- *
- * Copyright (C) 2001,02 NEC Corporation
- * Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include "mach.h"
-
-static int cpuinfo_print (struct seq_file *m, void *v)
-{
- extern unsigned long loops_per_jiffy;
-
- seq_printf (m, "CPU-Family: v850\nCPU-Arch: %s\n", CPU_ARCH);
-
-#ifdef CPU_MODEL_LONG
- seq_printf (m, "CPU-Model: %s (%s)\n", CPU_MODEL, CPU_MODEL_LONG);
-#else
- seq_printf (m, "CPU-Model: %s\n", CPU_MODEL);
-#endif
-
-#ifdef CPU_CLOCK_FREQ
- seq_printf (m, "CPU-Clock: %ld (%ld MHz)\n",
- (long)CPU_CLOCK_FREQ,
- (long)CPU_CLOCK_FREQ / 1000000);
-#endif
-
- seq_printf (m, "BogoMips: %lu.%02lu\n",
- loops_per_jiffy/(500000/HZ),
- (loops_per_jiffy/(5000/HZ)) % 100);
-
-#ifdef PLATFORM_LONG
- seq_printf (m, "Platform: %s (%s)\n", PLATFORM, PLATFORM_LONG);
-#elif defined (PLATFORM)
- seq_printf (m, "Platform: %s\n", PLATFORM);
-#endif
-
- return 0;
-}
-
-static void *cpuinfo_start (struct seq_file *m, loff_t *pos)
-{
- return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL;
-}
-
-static void *cpuinfo_next (struct seq_file *m, void *v, loff_t *pos)
-{
- ++*pos;
- return cpuinfo_start (m, pos);
-}
-
-static void cpuinfo_stop (struct seq_file *m, void *v)
-{
-}
-
-const struct seq_operations cpuinfo_op = {
- .start = cpuinfo_start,
- .next = cpuinfo_next,
- .stop = cpuinfo_stop,
- .show = cpuinfo_print
-};
+++ /dev/null
-/*
- * arch/v850/kernel/ptrace.c -- `ptrace' system call
- *
- * Copyright (C) 2002,03,04 NEC Electronics Corporation
- * Copyright (C) 2002,03,04 Miles Bader <miles@gnu.org>
- *
- * Derived from arch/mips/kernel/ptrace.c:
- *
- * Copyright (C) 1992 Ross Biro
- * Copyright (C) Linus Torvalds
- * Copyright (C) 1994, 95, 96, 97, 98, 2000 Ralf Baechle
- * Copyright (C) 1996 David S. Miller
- * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 1999 MIPS Technologies, Inc.
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- */
-
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/ptrace.h>
-#include <linux/signal.h>
-
-#include <asm/errno.h>
-#include <asm/ptrace.h>
-#include <asm/processor.h>
-#include <asm/uaccess.h>
-
-/* Returns the address where the register at REG_OFFS in P is stashed away. */
-static v850_reg_t *reg_save_addr (unsigned reg_offs, struct task_struct *t)
-{
- struct pt_regs *regs;
-
- /* Three basic cases:
-
- (1) A register normally saved before calling the scheduler, is
- available in the kernel entry pt_regs structure at the top
- of the kernel stack. The kernel trap/irq exit path takes
- care to save/restore almost all registers for ptrace'd
- processes.
-
- (2) A call-clobbered register, where the process P entered the
- kernel via [syscall] trap, is not stored anywhere; that's
- OK, because such registers are not expected to be preserved
- when the trap returns anyway (so we don't actually bother to
- test for this case).
-
- (3) A few registers not used at all by the kernel, and so
- normally never saved except by context-switches, are in the
- context switch state. */
-
- if (reg_offs == PT_CTPC || reg_offs == PT_CTPSW || reg_offs == PT_CTBP)
- /* Register saved during context switch. */
- regs = thread_saved_regs (t);
- else
- /* Register saved during kernel entry (or not available). */
- regs = task_pt_regs (t);
-
- return (v850_reg_t *)((char *)regs + reg_offs);
-}
-
-/* Set the bits SET and clear the bits CLEAR in the v850e DIR
- (`debug information register'). Returns the new value of DIR. */
-static inline v850_reg_t set_dir (v850_reg_t set, v850_reg_t clear)
-{
- register v850_reg_t rval asm ("r10");
- register v850_reg_t arg0 asm ("r6") = set;
- register v850_reg_t arg1 asm ("r7") = clear;
-
- /* The dbtrap handler has exactly this functionality when called
- from kernel mode. 0xf840 is a `dbtrap' insn. */
- asm (".short 0xf840" : "=r" (rval) : "r" (arg0), "r" (arg1));
-
- return rval;
-}
-
-/* Makes sure hardware single-stepping is (globally) enabled.
- Returns true if successful. */
-static inline int enable_single_stepping (void)
-{
- static int enabled = 0; /* Remember whether we already did it. */
- if (! enabled) {
- /* Turn on the SE (`single-step enable') bit, 0x100, in the
- DIR (`debug information register'). This may fail if a
- processor doesn't support it or something. We also try
- to clear bit 0x40 (`INI'), which is necessary to use the
- debug stuff on the v850e2; on the v850e, clearing 0x40
- shouldn't cause any problem. */
- v850_reg_t dir = set_dir (0x100, 0x40);
- /* Make sure it really got set. */
- if (dir & 0x100)
- enabled = 1;
- }
- return enabled;
-}
-
-/* Try to set CHILD's single-step flag to VAL. Returns true if successful. */
-static int set_single_step (struct task_struct *t, int val)
-{
- v850_reg_t *psw_addr = reg_save_addr(PT_PSW, t);
- if (val) {
- /* Make sure single-stepping is enabled. */
- if (! enable_single_stepping ())
- return 0;
- /* Set T's single-step flag. */
- *psw_addr |= 0x800;
- } else
- *psw_addr &= ~0x800;
- return 1;
-}
-
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
-{
- int rval;
-
- switch (request) {
- unsigned long val;
-
- case PTRACE_PEEKTEXT: /* read word at location addr. */
- case PTRACE_PEEKDATA:
- rval = generic_ptrace_peekdata(child, addr, data);
- goto out;
-
- case PTRACE_POKETEXT: /* write the word at location addr. */
- case PTRACE_POKEDATA:
- rval = generic_ptrace_pokedata(child, addr, data);
- goto out;
-
- /* Read/write the word at location ADDR in the registers. */
- case PTRACE_PEEKUSR:
- case PTRACE_POKEUSR:
- rval = 0;
- if (addr >= PT_SIZE && request == PTRACE_PEEKUSR) {
- /* Special requests that don't actually correspond
- to offsets in struct pt_regs. */
- if (addr == PT_TEXT_ADDR)
- val = child->mm->start_code;
- else if (addr == PT_DATA_ADDR)
- val = child->mm->start_data;
- else if (addr == PT_TEXT_LEN)
- val = child->mm->end_code
- - child->mm->start_code;
- else
- rval = -EIO;
- } else if (addr >= 0 && addr < PT_SIZE && (addr & 0x3) == 0) {
- v850_reg_t *reg_addr = reg_save_addr(addr, child);
- if (request == PTRACE_PEEKUSR)
- val = *reg_addr;
- else
- *reg_addr = data;
- } else
- rval = -EIO;
-
- if (rval == 0 && request == PTRACE_PEEKUSR)
- rval = put_user (val, (unsigned long *)data);
- goto out;
-
- /* Continue and stop at next (return from) syscall */
- case PTRACE_SYSCALL:
- /* Restart after a signal. */
- case PTRACE_CONT:
- /* Execute a single instruction. */
- case PTRACE_SINGLESTEP:
- rval = -EIO;
- if (!valid_signal(data))
- break;
-
- /* Turn CHILD's single-step flag on or off. */
- if (! set_single_step (child, request == PTRACE_SINGLESTEP))
- break;
-
- if (request == PTRACE_SYSCALL)
- set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- else
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-
- child->exit_code = data;
- wake_up_process(child);
- rval = 0;
- break;
-
- /*
- * make the child exit. Best I can do is send it a sigkill.
- * perhaps it should be put in the status that it wants to
- * exit.
- */
- case PTRACE_KILL:
- rval = 0;
- if (child->exit_state == EXIT_ZOMBIE) /* already dead */
- break;
- child->exit_code = SIGKILL;
- wake_up_process(child);
- break;
-
- case PTRACE_DETACH: /* detach a process that was attached. */
- set_single_step (child, 0); /* Clear single-step flag */
- rval = ptrace_detach(child, data);
- break;
-
- default:
- rval = -EIO;
- goto out;
- }
- out:
- return rval;
-}
-
-asmlinkage void syscall_trace(void)
-{
- if (!test_thread_flag(TIF_SYSCALL_TRACE))
- return;
- if (!(current->ptrace & PT_PTRACED))
- return;
- /* The 0x80 provides a way for the tracing parent to distinguish
- between a syscall stop and SIGTRAP delivery */
- ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
- ? 0x80 : 0));
- /*
- * this isn't the same as continuing with a signal, but it will do
- * for normal use. strace only continues with a signal if the
- * stopping signal is not SIGTRAP. -brl
- */
- if (current->exit_code) {
- send_sig(current->exit_code, current, 1);
- current->exit_code = 0;
- }
-}
-
-void ptrace_disable (struct task_struct *child)
-{
- /* nothing to do */
-}
+++ /dev/null
-/*
- * include/asm-v850/rte_cb.c -- Midas lab RTE-CB series of evaluation boards
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/fs.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-
-#include <asm/machdep.h>
-#include <asm/v850e_uart.h>
-
-#include "mach.h"
-
-static void led_tick (void);
-
-/* LED access routines. */
-extern unsigned read_leds (int pos, char *buf, int len);
-extern unsigned write_leds (int pos, const char *buf, int len);
-
-#ifdef CONFIG_RTE_CB_MULTI
-extern void multi_init (void);
-#endif
-
-\f
-void __init rte_cb_early_init (void)
-{
- v850e_intc_disable_irqs ();
-
-#ifdef CONFIG_RTE_CB_MULTI
- multi_init ();
-#endif
-}
-
-void __init mach_setup (char **cmdline)
-{
-#ifdef CONFIG_RTE_MB_A_PCI
- /* Probe for Mother-A, and print a message if we find it. */
- *(volatile unsigned long *)MB_A_SRAM_ADDR = 0xDEADBEEF;
- if (*(volatile unsigned long *)MB_A_SRAM_ADDR == 0xDEADBEEF) {
- *(volatile unsigned long *)MB_A_SRAM_ADDR = 0x12345678;
- if (*(volatile unsigned long *)MB_A_SRAM_ADDR == 0x12345678)
- printk (KERN_INFO
- " NEC SolutionGear/Midas lab"
- " RTE-MOTHER-A motherboard\n");
- }
-#endif /* CONFIG_RTE_MB_A_PCI */
-
- mach_tick = led_tick;
-}
-
-void machine_restart (char *__unused)
-{
-#ifdef CONFIG_RESET_GUARD
- disable_reset_guard ();
-#endif
- asm ("jmp r0"); /* Jump to the reset vector. */
-}
-
-/* This says `HALt.' in LEDese. */
-static unsigned char halt_leds_msg[] = { 0x76, 0x77, 0x38, 0xF8 };
-
-void machine_halt (void)
-{
-#ifdef CONFIG_RESET_GUARD
- disable_reset_guard ();
-#endif
-
- /* Ignore all interrupts. */
- local_irq_disable ();
-
- /* Write a little message. */
- write_leds (0, halt_leds_msg, sizeof halt_leds_msg);
-
- /* Really halt. */
- for (;;)
- asm ("halt; nop; nop; nop; nop; nop");
-}
-
-void machine_power_off (void)
-{
- machine_halt ();
-}
-
-\f
-/* Animated LED display for timer tick. */
-
-#define TICK_UPD_FREQ 6
-static int tick_frames[][10] = {
- { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, -1 },
- { 0x63, 0x5c, -1 },
- { 0x5c, 0x00, -1 },
- { 0x63, 0x00, -1 },
- { -1 }
-};
-
-static void led_tick ()
-{
- static unsigned counter = 0;
-
- if (++counter == (HZ / TICK_UPD_FREQ)) {
- /* Which frame we're currently displaying for each digit. */
- static unsigned frame_nums[LED_NUM_DIGITS] = { 0 };
- /* Display image. */
- static unsigned char image[LED_NUM_DIGITS] = { 0 };
- unsigned char prev_image[LED_NUM_DIGITS];
- int write_to_leds = 1; /* true if we should actually display */
- int digit;
-
- /* We check to see if the physical LEDs contains what we last
- wrote to them; if not, we suppress display (this is so that
- users can write to the LEDs, and not have their output
- overwritten). As a special case, we start writing again if
- all the LEDs are blank, or our display image is all zeros
- (indicating that this is the initial update, when the actual
- LEDs might contain random data). */
- read_leds (0, prev_image, LED_NUM_DIGITS);
- for (digit = 0; digit < LED_NUM_DIGITS; digit++)
- if (image[digit] != prev_image[digit]
- && image[digit] && prev_image[digit])
- {
- write_to_leds = 0;
- break;
- }
-
- /* Update display image. */
- for (digit = 0;
- digit < LED_NUM_DIGITS && tick_frames[digit][0] >= 0;
- digit++)
- {
- int frame = tick_frames[digit][frame_nums[digit]];
- if (frame < 0) {
- image[digit] = tick_frames[digit][0];
- frame_nums[digit] = 1;
- } else {
- image[digit] = frame;
- frame_nums[digit]++;
- break;
- }
- }
-
- if (write_to_leds)
- /* Write the display image to the physical LEDs. */
- write_leds (0, image, LED_NUM_DIGITS);
-
- counter = 0;
- }
-}
-
-\f
-/* Mother-A interrupts. */
-
-#ifdef CONFIG_RTE_GBUS_INT
-
-#define L GBUS_INT_PRIORITY_LOW
-#define M GBUS_INT_PRIORITY_MEDIUM
-#define H GBUS_INT_PRIORITY_HIGH
-
-static struct gbus_int_irq_init gbus_irq_inits[] = {
-#ifdef CONFIG_RTE_MB_A_PCI
- { "MB_A_LAN", IRQ_MB_A_LAN, 1, 1, L },
- { "MB_A_PCI1", IRQ_MB_A_PCI1(0), IRQ_MB_A_PCI1_NUM, 1, L },
- { "MB_A_PCI2", IRQ_MB_A_PCI2(0), IRQ_MB_A_PCI2_NUM, 1, L },
- { "MB_A_EXT", IRQ_MB_A_EXT(0), IRQ_MB_A_EXT_NUM, 1, L },
- { "MB_A_USB_OC",IRQ_MB_A_USB_OC(0), IRQ_MB_A_USB_OC_NUM, 1, L },
- { "MB_A_PCMCIA_OC",IRQ_MB_A_PCMCIA_OC, 1, 1, L },
-#endif
- { 0 }
-};
-#define NUM_GBUS_IRQ_INITS (ARRAY_SIZE(gbus_irq_inits) - 1)
-
-static struct hw_interrupt_type gbus_hw_itypes[NUM_GBUS_IRQ_INITS];
-
-#endif /* CONFIG_RTE_GBUS_INT */
-
-
-void __init rte_cb_init_irqs (void)
-{
-#ifdef CONFIG_RTE_GBUS_INT
- gbus_int_init_irqs ();
- gbus_int_init_irq_types (gbus_irq_inits, gbus_hw_itypes);
-#endif /* CONFIG_RTE_GBUS_INT */
-}
+++ /dev/null
-/*
- * include/asm-v850/rte_cb_leds.c -- Midas lab RTE-CB board LED device support
- *
- * Copyright (C) 2002,03 NEC Electronics Corporation
- * Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/fs.h>
-#include <linux/miscdevice.h>
-
-#include <asm/uaccess.h>
-
-#define LEDS_MINOR 169 /* Minor device number, using misc major. */
-
-/* The actual LED hardware is write-only, so we hold the contents here too. */
-static unsigned char leds_image[LED_NUM_DIGITS] = { 0 };
-
-/* Spinlock protecting the above leds. */
-static DEFINE_SPINLOCK(leds_lock);
-
-/* Common body of LED read/write functions, checks POS and LEN for
- correctness, declares a variable using IMG_DECL, initialized pointing at
- the POS position in the LED image buffer, and and iterates COPY_EXPR
- until BUF is equal to the last buffer position; finally, sets LEN to be
- the amount actually copied. IMG should be a variable declaration
- (without an initializer or a terminating semicolon); POS, BUF, and LEN
- should all be simple variables. */
-#define DO_LED_COPY(img_decl, pos, buf, len, copy_expr) \
-do { \
- if (pos > LED_NUM_DIGITS) \
- len = 0; \
- else { \
- if (pos + len > LED_NUM_DIGITS) \
- len = LED_NUM_DIGITS - pos; \
- \
- if (len > 0) { \
- unsigned long _flags; \
- const char *_end = buf + len; \
- img_decl = &leds_image[pos]; \
- \
- spin_lock_irqsave (leds_lock, _flags); \
- do \
- (copy_expr); \
- while (buf != _end); \
- spin_unlock_irqrestore (leds_lock, _flags); \
- } \
- } \
-} while (0)
-
-/* Read LEN bytes from LEDs at position POS, into BUF.
- Returns actual amount read. */
-unsigned read_leds (unsigned pos, char *buf, unsigned len)
-{
- DO_LED_COPY (const char *img, pos, buf, len, *buf++ = *img++);
- return len;
-}
-
-/* Write LEN bytes to LEDs at position POS, from BUF.
- Returns actual amount written. */
-unsigned write_leds (unsigned pos, const char *buf, unsigned len)
-{
- /* We write the actual LED values backwards, because
- increasing memory addresses reflect LEDs right-to-left. */
- volatile char *led = &LED (LED_NUM_DIGITS - pos - 1);
- /* We invert the value written to the hardware, because 1 = off,
- and 0 = on. */
- DO_LED_COPY (char *img, pos, buf, len,
- *led-- = 0xFF ^ (*img++ = *buf++));
- return len;
-}
-
-\f
-/* Device functions. */
-
-static ssize_t leds_dev_read (struct file *file, char *buf, size_t len,
- loff_t *pos)
-{
- char temp_buf[LED_NUM_DIGITS];
- len = read_leds (*pos, temp_buf, len);
- if (copy_to_user (buf, temp_buf, len))
- return -EFAULT;
- *pos += len;
- return len;
-}
-
-static ssize_t leds_dev_write (struct file *file, const char *buf, size_t len,
- loff_t *pos)
-{
- char temp_buf[LED_NUM_DIGITS];
- if (copy_from_user (temp_buf, buf, min_t(size_t, len, LED_NUM_DIGITS)))
- return -EFAULT;
- len = write_leds (*pos, temp_buf, len);
- *pos += len;
- return len;
-}
-
-static loff_t leds_dev_lseek (struct file *file, loff_t offs, int whence)
-{
- if (whence == 1)
- offs += file->f_pos; /* relative */
- else if (whence == 2)
- offs += LED_NUM_DIGITS; /* end-relative */
-
- if (offs < 0 || offs > LED_NUM_DIGITS)
- return -EINVAL;
-
- file->f_pos = offs;
-
- return 0;
-}
-
-static const struct file_operations leds_fops = {
- .read = leds_dev_read,
- .write = leds_dev_write,
- .llseek = leds_dev_lseek
-};
-
-static struct miscdevice leds_miscdev = {
- .name = "leds",
- .minor = LEDS_MINOR,
- .fops = &leds_fops
-};
-
-int __init leds_dev_init (void)
-{
- return misc_register (&leds_miscdev);
-}
-
-__initcall (leds_dev_init);
+++ /dev/null
-/*
- * include/asm-v850/rte_multi.c -- Support for Multi debugger monitor ROM
- * on Midas lab RTE-CB series of evaluation boards
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/init.h>
-
-#include <asm/machdep.h>
-
-#define IRQ_ADDR(irq) (0x80 + (irq) * 0x10)
-
-/* A table of which interrupt vectors to install, since blindly
- installing all of them makes the debugger stop working. This is a
- list of offsets in the interrupt vector area; each entry means to
- copy that particular 16-byte vector. An entry less than zero ends
- the table. */
-static long multi_intv_install_table[] = {
- /* Trap vectors */
- 0x40, 0x50,
-
-#ifdef CONFIG_RTE_CB_MULTI_DBTRAP
- /* Illegal insn / dbtrap. These are used by multi, so only handle
- them if configured to do so. */
- 0x60,
-#endif
-
- /* GINT1 - GINT3 (note, not GINT0!) */
- IRQ_ADDR (IRQ_GINT(1)),
- IRQ_ADDR (IRQ_GINT(2)),
- IRQ_ADDR (IRQ_GINT(3)),
-
- /* Timer D interrupts (up to 4 timers) */
- IRQ_ADDR (IRQ_INTCMD(0)),
-#if IRQ_INTCMD_NUM > 1
- IRQ_ADDR (IRQ_INTCMD(1)),
-#if IRQ_INTCMD_NUM > 2
- IRQ_ADDR (IRQ_INTCMD(2)),
-#if IRQ_INTCMD_NUM > 3
- IRQ_ADDR (IRQ_INTCMD(3)),
-#endif
-#endif
-#endif
-
- /* UART interrupts (up to 3 channels) */
- IRQ_ADDR (IRQ_INTSER (0)), /* err */
- IRQ_ADDR (IRQ_INTSR (0)), /* rx */
- IRQ_ADDR (IRQ_INTST (0)), /* tx */
-#if IRQ_INTSR_NUM > 1
- IRQ_ADDR (IRQ_INTSER (1)), /* err */
- IRQ_ADDR (IRQ_INTSR (1)), /* rx */
- IRQ_ADDR (IRQ_INTST (1)), /* tx */
-#if IRQ_INTSR_NUM > 2
- IRQ_ADDR (IRQ_INTSER (2)), /* err */
- IRQ_ADDR (IRQ_INTSR (2)), /* rx */
- IRQ_ADDR (IRQ_INTST (2)), /* tx */
-#endif
-#endif
-
- -1
-};
-
-/* Early initialization for kernel using Multi debugger ROM monitor. */
-void __init multi_init (void)
-{
- /* We're using the Multi debugger monitor, so we have to install
- the interrupt vectors. The monitor doesn't allow them to be
- initially downloaded into their final destination because
- it's in the monitor's scratch-RAM area. Unfortunately, Multi
- also doesn't deal correctly with ELF sections where the LMA
- and VMA differ -- it just ignores the LMA -- so we can't use
- that feature to work around the problem. What we do instead
- is just put the interrupt vectors into a normal section, and
- do the necessary copying and relocation here. Since the
- interrupt vector basically only contains `jr' instructions
- and no-ops, it's not that hard. */
- extern unsigned long _intv_load_start, _intv_start;
- register unsigned long *src = &_intv_load_start;
- register unsigned long *dst = (unsigned long *)INTV_BASE;
- register unsigned long jr_fixup = (char *)&_intv_start - (char *)dst;
- register long *ii;
-
- /* Copy interrupt vectors as instructed by multi_intv_install_table. */
- for (ii = multi_intv_install_table; *ii >= 0; ii++) {
- /* Copy 16-byte interrupt vector at offset *ii. */
- int boffs;
- for (boffs = 0; boffs < 0x10; boffs += sizeof *src) {
- /* Copy a single word, fixing up the jump offs
- if it's a `jr' instruction. */
- int woffs = (*ii + boffs) / sizeof *src;
- unsigned long word = src[woffs];
-
- if ((word & 0xFC0) == 0x780) {
- /* A `jr' insn, fix up its offset (and yes, the
- weird half-word swapping is intentional). */
- unsigned short hi = word & 0xFFFF;
- unsigned short lo = word >> 16;
- unsigned long udisp22
- = lo + ((hi & 0x3F) << 16);
- long disp22 = (long)(udisp22 << 10) >> 10;
-
- disp22 += jr_fixup;
-
- hi = ((disp22 >> 16) & 0x3F) | 0x780;
- lo = disp22 & 0xFFFF;
-
- word = hi + (lo << 16);
- }
-
- dst[woffs] = word;
- }
- }
-}
+++ /dev/null
-/* Linker script for the Midas labs RTE-V850E/MA1-CB evaluation board
- (CONFIG_RTE_CB_MA1), with kernel in ROM. */
-
-MEMORY {
- ROM : ORIGIN = 0x00000000, LENGTH = 0x00100000
- /* 1MB of SRAM. This memory is mirrored 4 times. */
- SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE
- /* 32MB of SDRAM. */
- SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
-}
-
-SECTIONS {
- ROMK_SECTIONS(ROM, SRAM)
-}
+++ /dev/null
-/*
- * arch/v850/kernel/rte_ma1_cb.c -- Midas labs RTE-V850E/MA1-CB board
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/bootmem.h>
-
-#include <asm/atomic.h>
-#include <asm/page.h>
-#include <asm/ma1.h>
-#include <asm/rte_ma1_cb.h>
-#include <asm/v850e_timer_c.h>
-
-#include "mach.h"
-
-
-/* SRAM and SDRAM are almost contiguous (with a small hole in between;
- see mach_reserve_bootmem for details), so just use both as one big area. */
-#define RAM_START SRAM_ADDR
-#define RAM_END (SDRAM_ADDR + SDRAM_SIZE)
-
-
-void __init mach_early_init (void)
-{
- rte_cb_early_init ();
-}
-
-void __init mach_get_physical_ram (unsigned long *ram_start,
- unsigned long *ram_len)
-{
- *ram_start = RAM_START;
- *ram_len = RAM_END - RAM_START;
-}
-
-void __init mach_reserve_bootmem ()
-{
-#ifdef CONFIG_RTE_CB_MULTI
- /* Prevent the kernel from touching the monitor's scratch RAM. */
- reserve_bootmem(MON_SCRATCH_ADDR, MON_SCRATCH_SIZE,
- BOOTMEM_DEFAULT);
-#endif
-
- /* The space between SRAM and SDRAM is filled with duplicate
- images of SRAM. Prevent the kernel from using them. */
- reserve_bootmem (SRAM_ADDR + SRAM_SIZE,
- SDRAM_ADDR - (SRAM_ADDR + SRAM_SIZE),
- BOOTMEM_DEFAULT);
-}
-
-void mach_gettimeofday (struct timespec *tv)
-{
- tv->tv_sec = 0;
- tv->tv_nsec = 0;
-}
-
-/* Called before configuring an on-chip UART. */
-void rte_ma1_cb_uart_pre_configure (unsigned chan,
- unsigned cflags, unsigned baud)
-{
- /* The RTE-MA1-CB connects some general-purpose I/O pins on the
- CPU to the RTS/CTS lines of UART 0's serial connection.
- I/O pins P42 and P43 are RTS and CTS respectively. */
- if (chan == 0) {
- /* Put P42 & P43 in I/O port mode. */
- MA_PORT4_PMC &= ~0xC;
- /* Make P42 an output, and P43 an input. */
- MA_PORT4_PM = (MA_PORT4_PM & ~0xC) | 0x8;
- }
-
- /* Do pre-configuration for the actual UART. */
- ma_uart_pre_configure (chan, cflags, baud);
-}
-
-void __init mach_init_irqs (void)
-{
- unsigned tc;
-
- /* Initialize interrupts. */
- ma_init_irqs ();
- rte_cb_init_irqs ();
-
- /* Use falling-edge-sensitivity for interrupts . */
- V850E_TIMER_C_SESC (0) &= ~0xC;
- V850E_TIMER_C_SESC (1) &= ~0xF;
-
- /* INTP000-INTP011 are shared with `Timer C', so we have to set
- up Timer C to pass them through as raw interrupts. */
- for (tc = 0; tc < 2; tc++)
- /* Turn on the timer. */
- V850E_TIMER_C_TMCC0 (tc) |= V850E_TIMER_C_TMCC0_CAE;
-
- /* Make sure the relevant port0/port1 pins are assigned
- interrupt duty. We used INTP001-INTP011 (don't screw with
- INTP000 because the monitor uses it). */
- MA_PORT0_PMC |= 0x4; /* P02 (INTP001) in IRQ mode. */
- MA_PORT1_PMC |= 0x6; /* P11 (INTP010) & P12 (INTP011) in IRQ mode.*/
-}
+++ /dev/null
-/* Linker script for the Midas labs RTE-V850E/MA1-CB evaluation board
- (CONFIG_RTE_CB_MA1), with kernel in SDRAM, under Multi debugger. */
-
-MEMORY {
- /* 1MB of SRAM; we can't use the last 32KB, because it's used by
- the monitor scratch-RAM. This memory is mirrored 4 times. */
- SRAM : ORIGIN = SRAM_ADDR, LENGTH = (SRAM_SIZE - MON_SCRATCH_SIZE)
- /* Monitor scratch RAM; only the interrupt vectors should go here. */
- MRAM : ORIGIN = MON_SCRATCH_ADDR, LENGTH = MON_SCRATCH_SIZE
- /* 32MB of SDRAM. */
- SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
-}
-
-#ifdef CONFIG_RTE_CB_MA1_KSRAM
-# define KRAM SRAM
-#else
-# define KRAM SDRAM
-#endif
-
-SECTIONS {
- /* We can't use RAMK_KRAM_CONTENTS because that puts the whole
- kernel in a single ELF segment, and the Multi debugger (which
- we use to load the kernel) appears to have bizarre problems
- dealing with it. */
-
- .text : {
- __kram_start = . ;
- TEXT_CONTENTS
- } > KRAM
-
- .data : {
- DATA_CONTENTS
- BSS_CONTENTS
- RAMK_INIT_CONTENTS
- __kram_end = . ;
- BOOTMAP_CONTENTS
-
- /* The address at which the interrupt vectors are initially
- loaded by the loader. We can't load the interrupt vectors
- directly into their target location, because the monitor
- ROM for the GHS Multi debugger barfs if we try.
- Unfortunately, Multi also doesn't deal correctly with ELF
- sections where the LMA and VMA differ (it just ignores the
- LMA), so we can't use that feature to work around the
- problem! What we do instead is just put the interrupt
- vectors into a normal section, and have the
- `mach_early_init' function for Midas boards do the
- necessary copying and relocation at runtime (this section
- basically only contains `jr' instructions, so it's not
- that hard). */
- . = ALIGN (0x10) ;
- __intv_load_start = . ;
- INTV_CONTENTS
- } > KRAM
-
- .root ALIGN (4096) : { ROOT_FS_CONTENTS } > SDRAM
-}
+++ /dev/null
-/*
- * arch/v850/kernel/mb_a_pci.c -- PCI support for Midas lab RTE-MOTHER-A board
- *
- * Copyright (C) 2001,02,03,05 NEC Electronics Corporation
- * Copyright (C) 2001,02,03,05 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/pci.h>
-
-#include <asm/machdep.h>
-
-/* __nomods_init is like __devinit, but is a no-op when modules are enabled.
- This is used by some routines that can be called either during boot
- or by a module. */
-#ifdef CONFIG_MODULES
-#define __nomods_init /*nothing*/
-#else
-#define __nomods_init __devinit
-#endif
-
-/* PCI devices on the Mother-A board can only do DMA to/from the MB SRAM
- (the RTE-V850E/MA1-CB cpu board doesn't support PCI access to
- CPU-board memory), and since linux DMA buffers are allocated in
- normal kernel memory, we basically have to copy DMA blocks around
- (this is like a `bounce buffer'). When a DMA block is `mapped', we
- allocate an identically sized block in MB SRAM, and if we're doing
- output to the device, copy the CPU-memory block to the MB-SRAM block.
- When an active block is `unmapped', we will copy the block back to
- CPU memory if necessary, and then deallocate the MB SRAM block.
- Ack. */
-
-/* Where the motherboard SRAM is in the PCI-bus address space (the
- first 512K of it is also mapped at PCI address 0). */
-#define PCI_MB_SRAM_ADDR 0x800000
-
-/* Convert CPU-view MB SRAM address to/from PCI-view addresses of the
- same memory. */
-#define MB_SRAM_TO_PCI(mb_sram_addr) \
- ((dma_addr_t)mb_sram_addr - MB_A_SRAM_ADDR + PCI_MB_SRAM_ADDR)
-#define PCI_TO_MB_SRAM(pci_addr) \
- (void *)(pci_addr - PCI_MB_SRAM_ADDR + MB_A_SRAM_ADDR)
-
-static void pcibios_assign_resources (void);
-
-struct mb_pci_dev_irq {
- unsigned dev; /* PCI device number */
- unsigned irq_base; /* First IRQ */
- unsigned query_pin; /* True if we should read the device's
- Interrupt Pin info, and allocate
- interrupt IRQ_BASE + PIN. */
-};
-
-/* PCI interrupts are mapped statically to GBUS interrupts. */
-static struct mb_pci_dev_irq mb_pci_dev_irqs[] = {
- /* Motherboard SB82558 ethernet controller */
- { 10, IRQ_MB_A_LAN, 0 },
- /* PCI slot 1 */
- { 8, IRQ_MB_A_PCI1(0), 1 },
- /* PCI slot 2 */
- { 9, IRQ_MB_A_PCI2(0), 1 }
-};
-#define NUM_MB_PCI_DEV_IRQS ARRAY_SIZE(mb_pci_dev_irqs)
-
-\f
-/* PCI configuration primitives. */
-
-#define CONFIG_DMCFGA(bus, devfn, offs) \
- (0x80000000 \
- | ((offs) & ~0x3) \
- | ((devfn) << 8) \
- | ((bus)->number << 16))
-
-static int
-mb_pci_read (struct pci_bus *bus, unsigned devfn, int offs, int size, u32 *rval)
-{
- u32 addr;
- int flags;
-
- local_irq_save (flags);
-
- MB_A_PCI_PCICR = 0x7;
- MB_A_PCI_DMCFGA = CONFIG_DMCFGA (bus, devfn, offs);
-
- addr = MB_A_PCI_IO_ADDR + (offs & 0x3);
-
- switch (size) {
- case 1: *rval = *(volatile u8 *)addr; break;
- case 2: *rval = *(volatile u16 *)addr; break;
- case 4: *rval = *(volatile u32 *)addr; break;
- }
-
- if (MB_A_PCI_PCISR & 0x2000) {
- MB_A_PCI_PCISR = 0x2000;
- *rval = ~0;
- }
-
- MB_A_PCI_DMCFGA = 0;
-
- local_irq_restore (flags);
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int
-mb_pci_write (struct pci_bus *bus, unsigned devfn, int offs, int size, u32 val)
-{
- u32 addr;
- int flags;
-
- local_irq_save (flags);
-
- MB_A_PCI_PCICR = 0x7;
- MB_A_PCI_DMCFGA = CONFIG_DMCFGA (bus, devfn, offs);
-
- addr = MB_A_PCI_IO_ADDR + (offs & 0x3);
-
- switch (size) {
- case 1: *(volatile u8 *)addr = val; break;
- case 2: *(volatile u16 *)addr = val; break;
- case 4: *(volatile u32 *)addr = val; break;
- }
-
- if (MB_A_PCI_PCISR & 0x2000)
- MB_A_PCI_PCISR = 0x2000;
-
- MB_A_PCI_DMCFGA = 0;
-
- local_irq_restore (flags);
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops mb_pci_config_ops = {
- .read = mb_pci_read,
- .write = mb_pci_write,
-};
-
-\f
-/* PCI Initialization. */
-
-static struct pci_bus *mb_pci_bus = 0;
-
-/* Do initial PCI setup. */
-static int __devinit pcibios_init (void)
-{
- u32 id = MB_A_PCI_PCIHIDR;
- u16 vendor = id & 0xFFFF;
- u16 device = (id >> 16) & 0xFFFF;
-
- if (vendor == PCI_VENDOR_ID_PLX && device == PCI_DEVICE_ID_PLX_9080) {
- printk (KERN_INFO
- "PCI: PLX Technology PCI9080 HOST/PCI bridge\n");
-
- MB_A_PCI_PCICR = 0x147;
-
- MB_A_PCI_PCIBAR0 = 0x007FFF00;
- MB_A_PCI_PCIBAR1 = 0x0000FF00;
- MB_A_PCI_PCIBAR2 = 0x00800000;
-
- MB_A_PCI_PCILTR = 0x20;
-
- MB_A_PCI_PCIPBAM |= 0x3;
-
- MB_A_PCI_PCISR = ~0; /* Clear errors. */
-
- /* Reprogram the motherboard's IO/config address space,
- as we don't support the GCS7 address space that the
- default uses. */
-
- /* Significant address bits used for decoding PCI GCS5 space
- accesses. */
- MB_A_PCI_DMRR = ~(MB_A_PCI_MEM_SIZE - 1);
-
- /* I don't understand this, but the SolutionGear example code
- uses such an offset, and it doesn't work without it. XXX */
-#if GCS5_SIZE == 0x00800000
-#define GCS5_CFG_OFFS 0x00800000
-#else
-#define GCS5_CFG_OFFS 0
-#endif
-
- /* Address bit values for matching. Note that we have to give
- the address from the motherboard's point of view, which is
- different than the CPU's. */
- /* PCI memory space. */
- MB_A_PCI_DMLBAM = GCS5_CFG_OFFS + 0x0;
- /* PCI I/O space. */
- MB_A_PCI_DMLBAI =
- GCS5_CFG_OFFS + (MB_A_PCI_IO_ADDR - GCS5_ADDR);
-
- mb_pci_bus = pci_scan_bus (0, &mb_pci_config_ops, 0);
-
- pcibios_assign_resources ();
- } else
- printk (KERN_ERR "PCI: HOST/PCI bridge not found\n");
-
- return 0;
-}
-
-subsys_initcall (pcibios_init);
-
-char __devinit *pcibios_setup (char *option)
-{
- /* Don't handle any options. */
- return option;
-}
-
-\f
-int __nomods_init pcibios_enable_device (struct pci_dev *dev, int mask)
-{
- u16 cmd, old_cmd;
- int idx;
- struct resource *r;
-
- pci_read_config_word(dev, PCI_COMMAND, &cmd);
- old_cmd = cmd;
- for (idx = 0; idx < 6; idx++) {
- r = &dev->resource[idx];
- if (!r->start && r->end) {
- printk(KERN_ERR "PCI: Device %s not available because "
- "of resource collisions\n", pci_name(dev));
- return -EINVAL;
- }
- if (r->flags & IORESOURCE_IO)
- cmd |= PCI_COMMAND_IO;
- if (r->flags & IORESOURCE_MEM)
- cmd |= PCI_COMMAND_MEMORY;
- }
- if (cmd != old_cmd) {
- printk("PCI: Enabling device %s (%04x -> %04x)\n",
- pci_name(dev), old_cmd, cmd);
- pci_write_config_word(dev, PCI_COMMAND, cmd);
- }
- return 0;
-}
-
-\f
-/* Resource allocation. */
-static void __devinit pcibios_assign_resources (void)
-{
- struct pci_dev *dev = NULL;
- struct resource *r;
-
- for_each_pci_dev(dev) {
- unsigned di_num;
- unsigned class = dev->class >> 8;
-
- if (class && class != PCI_CLASS_BRIDGE_HOST) {
- unsigned r_num;
- for(r_num = 0; r_num < 6; r_num++) {
- r = &dev->resource[r_num];
- if (!r->start && r->end)
- pci_assign_resource (dev, r_num);
- }
- }
-
- /* Assign interrupts. */
- for (di_num = 0; di_num < NUM_MB_PCI_DEV_IRQS; di_num++) {
- struct mb_pci_dev_irq *di = &mb_pci_dev_irqs[di_num];
-
- if (di->dev == PCI_SLOT (dev->devfn)) {
- unsigned irq = di->irq_base;
-
- if (di->query_pin) {
- /* Find out which interrupt pin
- this device uses (each PCI
- slot has 4). */
- u8 irq_pin;
-
- pci_read_config_byte (dev,
- PCI_INTERRUPT_PIN,
- &irq_pin);
-
- if (irq_pin == 0)
- /* Doesn't use interrupts. */
- continue;
- else
- irq += irq_pin - 1;
- }
-
- pcibios_update_irq (dev, irq);
- }
- }
- }
-}
-
-void __devinit pcibios_update_irq (struct pci_dev *dev, int irq)
-{
- dev->irq = irq;
- pci_write_config_byte (dev, PCI_INTERRUPT_LINE, irq);
-}
-
-void __devinit
-pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
- struct resource *res)
-{
- unsigned long offset = 0;
-
- if (res->flags & IORESOURCE_IO) {
- offset = MB_A_PCI_IO_ADDR;
- } else if (res->flags & IORESOURCE_MEM) {
- offset = MB_A_PCI_MEM_ADDR;
- }
-
- region->start = res->start - offset;
- region->end = res->end - offset;
-}
-
-\f
-/* Stubs for things we don't use. */
-
-/* Called after each bus is probed, but before its children are examined. */
-void pcibios_fixup_bus(struct pci_bus *b)
-{
-}
-
-void
-pcibios_align_resource (void *data, struct resource *res,
- resource_size_t size, resource_size_t align)
-{
-}
-
-void pcibios_set_master (struct pci_dev *dev)
-{
-}
-
-\f
-/* Mother-A SRAM memory allocation. This is a simple first-fit allocator. */
-
-/* A memory free-list node. */
-struct mb_sram_free_area {
- void *mem;
- unsigned long size;
- struct mb_sram_free_area *next;
-};
-
-/* The tail of the free-list, which starts out containing all the SRAM. */
-static struct mb_sram_free_area mb_sram_free_tail = {
- (void *)MB_A_SRAM_ADDR, MB_A_SRAM_SIZE, 0
-};
-
-/* The free-list. */
-static struct mb_sram_free_area *mb_sram_free_areas = &mb_sram_free_tail;
-
-/* The free-list of free free-list nodes. (:-) */
-static struct mb_sram_free_area *mb_sram_free_free_areas = 0;
-
-/* Spinlock protecting the above globals. */
-static DEFINE_SPINLOCK(mb_sram_lock);
-
-/* Allocate a memory block at least SIZE bytes long in the Mother-A SRAM
- space. */
-static void *alloc_mb_sram (size_t size)
-{
- struct mb_sram_free_area *prev, *fa;
- unsigned long flags;
- void *mem = 0;
-
- spin_lock_irqsave (mb_sram_lock, flags);
-
- /* Look for a free area that can contain SIZE bytes. */
- for (prev = 0, fa = mb_sram_free_areas; fa; prev = fa, fa = fa->next)
- if (fa->size >= size) {
- /* Found one! */
- mem = fa->mem;
-
- if (fa->size == size) {
- /* In fact, it fits exactly, so remove
- this node from the free-list. */
- if (prev)
- prev->next = fa->next;
- else
- mb_sram_free_areas = fa->next;
- /* Put it on the free-list-entry-free-list. */
- fa->next = mb_sram_free_free_areas;
- mb_sram_free_free_areas = fa;
- } else {
- /* FA is bigger than SIZE, so just
- reduce its size to account for this
- allocation. */
- fa->mem += size;
- fa->size -= size;
- }
-
- break;
- }
-
- spin_unlock_irqrestore (mb_sram_lock, flags);
-
- return mem;
-}
-
-/* Return the memory area MEM of size SIZE to the MB SRAM free pool. */
-static void free_mb_sram (void *mem, size_t size)
-{
- struct mb_sram_free_area *prev, *fa, *new_fa;
- unsigned long flags;
- void *end = mem + size;
-
- spin_lock_irqsave (mb_sram_lock, flags);
-
- retry:
- /* Find an adjacent free-list entry. */
- for (prev = 0, fa = mb_sram_free_areas; fa; prev = fa, fa = fa->next)
- if (fa->mem == end) {
- /* FA is just after MEM, grow down to encompass it. */
- fa->mem = mem;
- fa->size += size;
- goto done;
- } else if (fa->mem + fa->size == mem) {
- struct mb_sram_free_area *next_fa = fa->next;
-
- /* FA is just before MEM, expand to encompass it. */
- fa->size += size;
-
- /* See if FA can now be merged with its successor. */
- if (next_fa && fa->mem + fa->size == next_fa->mem) {
- /* Yup; merge NEXT_FA's info into FA. */
- fa->size += next_fa->size;
- fa->next = next_fa->next;
- /* Free NEXT_FA. */
- next_fa->next = mb_sram_free_free_areas;
- mb_sram_free_free_areas = next_fa;
- }
- goto done;
- } else if (fa->mem > mem)
- /* We've reached the right spot in the free-list
- without finding an adjacent free-area, so add
- a new free area to hold mem. */
- break;
-
- /* Make a new free-list entry. */
-
- /* First, get a free-list entry. */
- if (! mb_sram_free_free_areas) {
- /* There are none, so make some. */
- void *block;
- size_t block_size = sizeof (struct mb_sram_free_area) * 8;
-
- /* Don't hold the lock while calling kmalloc (I'm not
- sure whether it would be a problem, since we use
- GFP_ATOMIC, but it makes me nervous). */
- spin_unlock_irqrestore (mb_sram_lock, flags);
-
- block = kmalloc (block_size, GFP_ATOMIC);
- if (! block)
- panic ("free_mb_sram: can't allocate free-list entry");
-
- /* Now get the lock back. */
- spin_lock_irqsave (mb_sram_lock, flags);
-
- /* Add the new free free-list entries. */
- while (block_size > 0) {
- struct mb_sram_free_area *nfa = block;
- nfa->next = mb_sram_free_free_areas;
- mb_sram_free_free_areas = nfa;
- block += sizeof *nfa;
- block_size -= sizeof *nfa;
- }
-
- /* Since we dropped the lock to call kmalloc, the
- free-list could have changed, so retry from the
- beginning. */
- goto retry;
- }
-
- /* Remove NEW_FA from the free-list of free-list entries. */
- new_fa = mb_sram_free_free_areas;
- mb_sram_free_free_areas = new_fa->next;
-
- /* NEW_FA initially holds only MEM. */
- new_fa->mem = mem;
- new_fa->size = size;
-
- /* Insert NEW_FA in the free-list between PREV and FA. */
- new_fa->next = fa;
- if (prev)
- prev->next = new_fa;
- else
- mb_sram_free_areas = new_fa;
-
- done:
- spin_unlock_irqrestore (mb_sram_lock, flags);
-}
-
-\f
-/* Maintainence of CPU -> Mother-A DMA mappings. */
-
-struct dma_mapping {
- void *cpu_addr;
- void *mb_sram_addr;
- size_t size;
- struct dma_mapping *next;
-};
-
-/* A list of mappings from CPU addresses to MB SRAM addresses for active
- DMA blocks (that have been `granted' to the PCI device). */
-static struct dma_mapping *active_dma_mappings = 0;
-
-/* A list of free mapping objects. */
-static struct dma_mapping *free_dma_mappings = 0;
-
-/* Spinlock protecting the above globals. */
-static DEFINE_SPINLOCK(dma_mappings_lock);
-
-static struct dma_mapping *new_dma_mapping (size_t size)
-{
- unsigned long flags;
- struct dma_mapping *mapping;
- void *mb_sram_block = alloc_mb_sram (size);
-
- if (! mb_sram_block)
- return 0;
-
- spin_lock_irqsave (dma_mappings_lock, flags);
-
- if (! free_dma_mappings) {
- /* We're out of mapping structures, make more. */
- void *mblock;
- size_t mblock_size = sizeof (struct dma_mapping) * 8;
-
- /* Don't hold the lock while calling kmalloc (I'm not
- sure whether it would be a problem, since we use
- GFP_ATOMIC, but it makes me nervous). */
- spin_unlock_irqrestore (dma_mappings_lock, flags);
-
- mblock = kmalloc (mblock_size, GFP_ATOMIC);
- if (! mblock) {
- free_mb_sram (mb_sram_block, size);
- return 0;
- }
-
- /* Get the lock back. */
- spin_lock_irqsave (dma_mappings_lock, flags);
-
- /* Add the new mapping structures to the free-list. */
- while (mblock_size > 0) {
- struct dma_mapping *fm = mblock;
- fm->next = free_dma_mappings;
- free_dma_mappings = fm;
- mblock += sizeof *fm;
- mblock_size -= sizeof *fm;
- }
- }
-
- /* Get a mapping struct from the freelist. */
- mapping = free_dma_mappings;
- free_dma_mappings = mapping->next;
-
- /* Initialize the mapping. Other fields should be filled in by
- caller. */
- mapping->mb_sram_addr = mb_sram_block;
- mapping->size = size;
-
- /* Add it to the list of active mappings. */
- mapping->next = active_dma_mappings;
- active_dma_mappings = mapping;
-
- spin_unlock_irqrestore (dma_mappings_lock, flags);
-
- return mapping;
-}
-
-static struct dma_mapping *find_dma_mapping (void *mb_sram_addr)
-{
- unsigned long flags;
- struct dma_mapping *mapping;
-
- spin_lock_irqsave (dma_mappings_lock, flags);
-
- for (mapping = active_dma_mappings; mapping; mapping = mapping->next)
- if (mapping->mb_sram_addr == mb_sram_addr) {
- spin_unlock_irqrestore (dma_mappings_lock, flags);
- return mapping;
- }
-
- panic ("find_dma_mapping: unmapped PCI DMA addr 0x%x",
- MB_SRAM_TO_PCI (mb_sram_addr));
-}
-
-static struct dma_mapping *deactivate_dma_mapping (void *mb_sram_addr)
-{
- unsigned long flags;
- struct dma_mapping *mapping, *prev;
-
- spin_lock_irqsave (dma_mappings_lock, flags);
-
- for (prev = 0, mapping = active_dma_mappings;
- mapping;
- prev = mapping, mapping = mapping->next)
- {
- if (mapping->mb_sram_addr == mb_sram_addr) {
- /* This is the MAPPING; deactivate it. */
- if (prev)
- prev->next = mapping->next;
- else
- active_dma_mappings = mapping->next;
-
- spin_unlock_irqrestore (dma_mappings_lock, flags);
-
- return mapping;
- }
- }
-
- panic ("deactivate_dma_mapping: unmapped PCI DMA addr 0x%x",
- MB_SRAM_TO_PCI (mb_sram_addr));
-}
-
-/* Return MAPPING to the freelist. */
-static inline void
-free_dma_mapping (struct dma_mapping *mapping)
-{
- unsigned long flags;
-
- free_mb_sram (mapping->mb_sram_addr, mapping->size);
-
- spin_lock_irqsave (dma_mappings_lock, flags);
-
- mapping->next = free_dma_mappings;
- free_dma_mappings = mapping;
-
- spin_unlock_irqrestore (dma_mappings_lock, flags);
-}
-
-\f
-/* Single PCI DMA mappings. */
-
-/* `Grant' to PDEV the memory block at CPU_ADDR, for doing DMA. The
- 32-bit PCI bus mastering address to use is returned. the device owns
- this memory until either pci_unmap_single or pci_dma_sync_single is
- performed. */
-dma_addr_t
-pci_map_single (struct pci_dev *pdev, void *cpu_addr, size_t size, int dir)
-{
- struct dma_mapping *mapping = new_dma_mapping (size);
-
- if (! mapping)
- return 0;
-
- mapping->cpu_addr = cpu_addr;
-
- if (dir == PCI_DMA_BIDIRECTIONAL || dir == PCI_DMA_TODEVICE)
- memcpy (mapping->mb_sram_addr, cpu_addr, size);
-
- return MB_SRAM_TO_PCI (mapping->mb_sram_addr);
-}
-
-/* Return to the CPU the PCI DMA memory block previously `granted' to
- PDEV, at DMA_ADDR. */
-void pci_unmap_single (struct pci_dev *pdev, dma_addr_t dma_addr, size_t size,
- int dir)
-{
- void *mb_sram_addr = PCI_TO_MB_SRAM (dma_addr);
- struct dma_mapping *mapping = deactivate_dma_mapping (mb_sram_addr);
-
- if (size != mapping->size)
- panic ("pci_unmap_single: size (%d) doesn't match"
- " size of mapping at PCI DMA addr 0x%x (%d)\n",
- size, dma_addr, mapping->size);
-
- /* Copy back the DMA'd contents if necessary. */
- if (dir == PCI_DMA_BIDIRECTIONAL || dir == PCI_DMA_FROMDEVICE)
- memcpy (mapping->cpu_addr, mb_sram_addr, size);
-
- /* Return mapping to the freelist. */
- free_dma_mapping (mapping);
-}
-
-/* Make physical memory consistent for a single streaming mode DMA
- translation after a transfer.
-
- If you perform a pci_map_single() but wish to interrogate the
- buffer using the cpu, yet do not wish to teardown the PCI dma
- mapping, you must call this function before doing so. At the next
- point you give the PCI dma address back to the card, you must first
- perform a pci_dma_sync_for_device, and then the device again owns
- the buffer. */
-void
-pci_dma_sync_single_for_cpu (struct pci_dev *pdev, dma_addr_t dma_addr, size_t size,
- int dir)
-{
- void *mb_sram_addr = PCI_TO_MB_SRAM (dma_addr);
- struct dma_mapping *mapping = find_dma_mapping (mb_sram_addr);
-
- /* Synchronize the DMA buffer with the CPU buffer if necessary. */
- if (dir == PCI_DMA_FROMDEVICE)
- memcpy (mapping->cpu_addr, mb_sram_addr, size);
- else if (dir == PCI_DMA_TODEVICE)
- ; /* nothing to do */
- else
- panic("pci_dma_sync_single: unsupported sync dir: %d", dir);
-}
-
-void
-pci_dma_sync_single_for_device (struct pci_dev *pdev, dma_addr_t dma_addr, size_t size,
- int dir)
-{
- void *mb_sram_addr = PCI_TO_MB_SRAM (dma_addr);
- struct dma_mapping *mapping = find_dma_mapping (mb_sram_addr);
-
- /* Synchronize the DMA buffer with the CPU buffer if necessary. */
- if (dir == PCI_DMA_FROMDEVICE)
- ; /* nothing to do */
- else if (dir == PCI_DMA_TODEVICE)
- memcpy (mb_sram_addr, mapping->cpu_addr, size);
- else
- panic("pci_dma_sync_single: unsupported sync dir: %d", dir);
-}
-
-\f
-/* Scatter-gather PCI DMA mappings. */
-
-/* Do multiple DMA mappings at once. */
-int
-pci_map_sg (struct pci_dev *pdev, struct scatterlist *sg, int sg_len, int dir)
-{
- BUG ();
- return 0;
-}
-
-/* Unmap multiple DMA mappings at once. */
-void
-pci_unmap_sg (struct pci_dev *pdev, struct scatterlist *sg, int sg_len,int dir)
-{
- BUG ();
-}
-
-/* Make physical memory consistent for a set of streaming mode DMA
- translations after a transfer. The same as pci_dma_sync_single_* but
- for a scatter-gather list, same rules and usage. */
-
-void
-pci_dma_sync_sg_for_cpu (struct pci_dev *dev,
- struct scatterlist *sg, int sg_len,
- int dir)
-{
- BUG ();
-}
-
-void
-pci_dma_sync_sg_for_device (struct pci_dev *dev,
- struct scatterlist *sg, int sg_len,
- int dir)
-{
- BUG ();
-}
-
-\f
-/* PCI mem mapping. */
-
-/* Allocate and map kernel buffer using consistent mode DMA for PCI
- device. Returns non-NULL cpu-view pointer to the buffer if
- successful and sets *DMA_ADDR to the pci side dma address as well,
- else DMA_ADDR is undefined. */
-void *
-pci_alloc_consistent (struct pci_dev *pdev, size_t size, dma_addr_t *dma_addr)
-{
- void *mb_sram_mem = alloc_mb_sram (size);
- if (mb_sram_mem)
- *dma_addr = MB_SRAM_TO_PCI (mb_sram_mem);
- return mb_sram_mem;
-}
-
-/* Free and unmap a consistent DMA buffer. CPU_ADDR and DMA_ADDR must
- be values that were returned from pci_alloc_consistent. SIZE must be
- the same as what as passed into pci_alloc_consistent. References to
- the memory and mappings associated with CPU_ADDR or DMA_ADDR past
- this call are illegal. */
-void
-pci_free_consistent (struct pci_dev *pdev, size_t size, void *cpu_addr,
- dma_addr_t dma_addr)
-{
- void *mb_sram_mem = PCI_TO_MB_SRAM (dma_addr);
- free_mb_sram (mb_sram_mem, size);
-}
-
-\f
-/* iomap/iomap */
-
-void __iomem *pci_iomap (struct pci_dev *dev, int bar, unsigned long max)
-{
- resource_size_t start = pci_resource_start (dev, bar);
- resource_size_t len = pci_resource_len (dev, bar);
-
- if (!start || len == 0)
- return 0;
-
- /* None of the ioremap functions actually do anything, other than
- re-casting their argument, so don't bother differentiating them. */
- return ioremap (start, len);
-}
-
-void pci_iounmap (struct pci_dev *dev, void __iomem *addr)
-{
- /* nothing */
-}
-
-\f
-/* symbol exports (for modules) */
-
-EXPORT_SYMBOL (pci_map_single);
-EXPORT_SYMBOL (pci_unmap_single);
-EXPORT_SYMBOL (pci_alloc_consistent);
-EXPORT_SYMBOL (pci_free_consistent);
-EXPORT_SYMBOL (pci_dma_sync_single_for_cpu);
-EXPORT_SYMBOL (pci_dma_sync_single_for_device);
-EXPORT_SYMBOL (pci_iomap);
-EXPORT_SYMBOL (pci_iounmap);
+++ /dev/null
-/*
- * arch/v850/kernel/rte_me2_cb.c -- Midas labs RTE-V850E/ME2-CB board
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/bootmem.h>
-#include <linux/irq.h>
-#include <linux/fs.h>
-#include <linux/major.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-
-#include <asm/atomic.h>
-#include <asm/page.h>
-#include <asm/me2.h>
-#include <asm/rte_me2_cb.h>
-#include <asm/machdep.h>
-#include <asm/v850e_intc.h>
-#include <asm/v850e_cache.h>
-#include <asm/irq.h>
-
-#include "mach.h"
-
-extern unsigned long *_intv_start;
-extern unsigned long *_intv_end;
-
-/* LED access routines. */
-extern unsigned read_leds (int pos, char *buf, int len);
-extern unsigned write_leds (int pos, const char *buf, int len);
-
-
-/* SDRAM are almost contiguous (with a small hole in between;
- see mach_reserve_bootmem for details), so just use both as one big area. */
-#define RAM_START SDRAM_ADDR
-#define RAM_END (SDRAM_ADDR + SDRAM_SIZE)
-
-
-void __init mach_get_physical_ram (unsigned long *ram_start,
- unsigned long *ram_len)
-{
- *ram_start = RAM_START;
- *ram_len = RAM_END - RAM_START;
-}
-
-void mach_gettimeofday (struct timespec *tv)
-{
- tv->tv_sec = 0;
- tv->tv_nsec = 0;
-}
-
-/* Called before configuring an on-chip UART. */
-void rte_me2_cb_uart_pre_configure (unsigned chan,
- unsigned cflags, unsigned baud)
-{
- /* The RTE-V850E/ME2-CB connects some general-purpose I/O
- pins on the CPU to the RTS/CTS lines of UARTB channel 0's
- serial connection.
- I/O pins P21 and P22 are RTS and CTS respectively. */
- if (chan == 0) {
- /* Put P21 & P22 in I/O port mode. */
- ME2_PORT2_PMC &= ~0x6;
- /* Make P21 and output, and P22 an input. */
- ME2_PORT2_PM = (ME2_PORT2_PM & ~0xC) | 0x4;
- }
-
- me2_uart_pre_configure (chan, cflags, baud);
-}
-
-void __init mach_init_irqs (void)
-{
- /* Initialize interrupts. */
- me2_init_irqs ();
- rte_me2_cb_init_irqs ();
-}
-
-#ifdef CONFIG_ROM_KERNEL
-/* Initialization for kernel in ROM. */
-static inline rom_kernel_init (void)
-{
- /* If the kernel is in ROM, we have to copy any initialized data
- from ROM into RAM. */
- extern unsigned long _data_load_start, _sdata, _edata;
- register unsigned long *src = &_data_load_start;
- register unsigned long *dst = &_sdata, *end = &_edata;
-
- while (dst != end)
- *dst++ = *src++;
-}
-#endif /* CONFIG_ROM_KERNEL */
-
-static void install_interrupt_vectors (void)
-{
- unsigned long *p1, *p2;
-
- ME2_IRAMM = 0x03; /* V850E/ME2 iRAM write mode */
-
- /* vector copy to iRAM */
- p1 = (unsigned long *)0; /* v85x vector start */
- p2 = (unsigned long *)&_intv_start;
- while (p2 < (unsigned long *)&_intv_end)
- *p1++ = *p2++;
-
- ME2_IRAMM = 0x00; /* V850E/ME2 iRAM read mode */
-}
-\f
-/* CompactFlash */
-
-static void cf_power_on (void)
-{
- /* CF card detected? */
- if (CB_CF_STS0 & 0x0030)
- return;
-
- CB_CF_REG0 = 0x0002; /* reest on */
- mdelay (10);
- CB_CF_REG0 = 0x0003; /* power on */
- mdelay (10);
- CB_CF_REG0 = 0x0001; /* reset off */
- mdelay (10);
-}
-
-static void cf_power_off (void)
-{
- CB_CF_REG0 = 0x0003; /* power on */
- mdelay (10);
- CB_CF_REG0 = 0x0002; /* reest on */
- mdelay (10);
-}
-
-void __init mach_early_init (void)
-{
- install_interrupt_vectors ();
-
- /* CS1 SDRAM instruction cache enable */
- v850e_cache_enable (0x04, 0x03, 0);
-
- rte_cb_early_init ();
-
- /* CompactFlash power on */
- cf_power_on ();
-
-#if defined (CONFIG_ROM_KERNEL)
- rom_kernel_init ();
-#endif
-}
-
-\f
-/* RTE-V850E/ME2-CB Programmable Interrupt Controller. */
-
-static struct cb_pic_irq_init cb_pic_irq_inits[] = {
- { "CB_EXTTM0", IRQ_CB_EXTTM0, 1, 1, 6 },
- { "CB_EXTSIO", IRQ_CB_EXTSIO, 1, 1, 6 },
- { "CB_TOVER", IRQ_CB_TOVER, 1, 1, 6 },
- { "CB_GINT0", IRQ_CB_GINT0, 1, 1, 6 },
- { "CB_USB", IRQ_CB_USB, 1, 1, 6 },
- { "CB_LANC", IRQ_CB_LANC, 1, 1, 6 },
- { "CB_USB_VBUS_ON", IRQ_CB_USB_VBUS_ON, 1, 1, 6 },
- { "CB_USB_VBUS_OFF", IRQ_CB_USB_VBUS_OFF, 1, 1, 6 },
- { "CB_EXTTM1", IRQ_CB_EXTTM1, 1, 1, 6 },
- { "CB_EXTTM2", IRQ_CB_EXTTM2, 1, 1, 6 },
- { 0 }
-};
-#define NUM_CB_PIC_IRQ_INITS (ARRAY_SIZE(cb_pic_irq_inits) - 1)
-
-static struct hw_interrupt_type cb_pic_hw_itypes[NUM_CB_PIC_IRQ_INITS];
-static unsigned char cb_pic_active_irqs = 0;
-
-void __init rte_me2_cb_init_irqs (void)
-{
- cb_pic_init_irq_types (cb_pic_irq_inits, cb_pic_hw_itypes);
-
- /* Initalize on board PIC1 (not PIC0) enable */
- CB_PIC_INT0M = 0x0000;
- CB_PIC_INT1M = 0x0000;
- CB_PIC_INTR = 0x0000;
- CB_PIC_INTEN |= CB_PIC_INT1EN;
-
- ME2_PORT2_PMC |= 0x08; /* INTP23/SCK1 mode */
- ME2_PORT2_PFC &= ~0x08; /* INTP23 mode */
- ME2_INTR(2) &= ~0x08; /* INTP23 falling-edge detect */
- ME2_INTF(2) &= ~0x08; /* " */
-
- rte_cb_init_irqs (); /* gbus &c */
-}
-
-
-/* Enable interrupt handling for interrupt IRQ. */
-void cb_pic_enable_irq (unsigned irq)
-{
- CB_PIC_INT1M |= 1 << (irq - CB_PIC_BASE_IRQ);
-}
-
-void cb_pic_disable_irq (unsigned irq)
-{
- CB_PIC_INT1M &= ~(1 << (irq - CB_PIC_BASE_IRQ));
-}
-
-void cb_pic_shutdown_irq (unsigned irq)
-{
- cb_pic_disable_irq (irq);
-
- if (--cb_pic_active_irqs == 0)
- free_irq (IRQ_CB_PIC, 0);
-
- CB_PIC_INT1M &= ~(1 << (irq - CB_PIC_BASE_IRQ));
-}
-
-static irqreturn_t cb_pic_handle_irq (int irq, void *dev_id,
- struct pt_regs *regs)
-{
- irqreturn_t rval = IRQ_NONE;
- unsigned status = CB_PIC_INTR;
- unsigned enable = CB_PIC_INT1M;
-
- /* Only pay attention to enabled interrupts. */
- status &= enable;
-
- CB_PIC_INTEN &= ~CB_PIC_INT1EN;
-
- if (status) {
- unsigned mask = 1;
-
- irq = CB_PIC_BASE_IRQ;
- do {
- /* There's an active interrupt, find out which one,
- and call its handler. */
- while (! (status & mask)) {
- irq++;
- mask <<= 1;
- }
- status &= ~mask;
-
- CB_PIC_INTR = mask;
-
- /* Recursively call handle_irq to handle it. */
- handle_irq (irq, regs);
- rval = IRQ_HANDLED;
- } while (status);
- }
-
- CB_PIC_INTEN |= CB_PIC_INT1EN;
-
- return rval;
-}
-
-\f
-static void irq_nop (unsigned irq) { }
-
-static unsigned cb_pic_startup_irq (unsigned irq)
-{
- int rval;
-
- if (cb_pic_active_irqs == 0) {
- rval = request_irq (IRQ_CB_PIC, cb_pic_handle_irq,
- IRQF_DISABLED, "cb_pic_handler", 0);
- if (rval != 0)
- return rval;
- }
-
- cb_pic_active_irqs++;
-
- cb_pic_enable_irq (irq);
-
- return 0;
-}
-
-/* Initialize HW_IRQ_TYPES for INTC-controlled irqs described in array
- INITS (which is terminated by an entry with the name field == 0). */
-void __init cb_pic_init_irq_types (struct cb_pic_irq_init *inits,
- struct hw_interrupt_type *hw_irq_types)
-{
- struct cb_pic_irq_init *init;
- for (init = inits; init->name; init++) {
- struct hw_interrupt_type *hwit = hw_irq_types++;
-
- hwit->typename = init->name;
-
- hwit->startup = cb_pic_startup_irq;
- hwit->shutdown = cb_pic_shutdown_irq;
- hwit->enable = cb_pic_enable_irq;
- hwit->disable = cb_pic_disable_irq;
- hwit->ack = irq_nop;
- hwit->end = irq_nop;
-
- /* Initialize kernel IRQ infrastructure for this interrupt. */
- init_irq_handlers(init->base, init->num, init->interval, hwit);
- }
-}
+++ /dev/null
-/* Linker script for the Midas labs RTE-V850E/ME2-CB evaluation board
- (CONFIG_RTE_CB_ME2), with kernel in SDRAM. */
-
-MEMORY {
- /* 128Kbyte of IRAM */
- IRAM : ORIGIN = 0x00000000, LENGTH = 0x00020000
-
- /* 32MB of SDRAM. */
- SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
-}
-
-#define KRAM SDRAM
-
-SECTIONS {
- .text : {
- __kram_start = . ;
- TEXT_CONTENTS
- INTV_CONTENTS /* copy to iRAM (0x0-0x620) */
- } > KRAM
-
- .data : {
- DATA_CONTENTS
- BSS_CONTENTS
- RAMK_INIT_CONTENTS
- __kram_end = . ;
- BOOTMAP_CONTENTS
- } > KRAM
-
- .root ALIGN (4096) : { ROOT_FS_CONTENTS } > SDRAM
-}
+++ /dev/null
-/* Linker script for the Midas labs RTE-NB85E-CB evaluation board
- (CONFIG_RTE_CB_NB85E), with the Multi debugger ROM monitor . */
-
-MEMORY {
- /* 1MB of SRAM; we can't use the last 96KB, because it's used by
- the monitor scratch-RAM. This memory is mirrored 4 times. */
- SRAM : ORIGIN = SRAM_ADDR, LENGTH = (SRAM_SIZE - MON_SCRATCH_SIZE)
- /* Monitor scratch RAM; only the interrupt vectors should go here. */
- MRAM : ORIGIN = MON_SCRATCH_ADDR, LENGTH = MON_SCRATCH_SIZE
- /* 16MB of SDRAM. */
- SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
-}
-
-#ifdef CONFIG_RTE_CB_NB85E_KSRAM
-# define KRAM SRAM
-#else
-# define KRAM SDRAM
-#endif
-
-SECTIONS {
- /* We can't use RAMK_KRAM_CONTENTS because that puts the whole
- kernel in a single ELF segment, and the Multi debugger (which
- we use to load the kernel) appears to have bizarre problems
- dealing with it. */
-
- .text : {
- __kram_start = . ;
- TEXT_CONTENTS
- } > KRAM
-
- .data : {
- DATA_CONTENTS
- BSS_CONTENTS
- RAMK_INIT_CONTENTS
- __kram_end = . ;
- BOOTMAP_CONTENTS
-
- /* The address at which the interrupt vectors are initially
- loaded by the loader. We can't load the interrupt vectors
- directly into their target location, because the monitor
- ROM for the GHS Multi debugger barfs if we try.
- Unfortunately, Multi also doesn't deal correctly with ELF
- sections where the LMA and VMA differ (it just ignores the
- LMA), so we can't use that feature to work around the
- problem! What we do instead is just put the interrupt
- vectors into a normal section, and have the
- `mach_early_init' function for Midas boards do the
- necessary copying and relocation at runtime (this section
- basically only contains `jr' instructions, so it's not
- that hard). */
- . = ALIGN (0x10) ;
- __intv_load_start = . ;
- INTV_CONTENTS
- } > KRAM
-
- .root ALIGN (4096) : { ROOT_FS_CONTENTS } > SDRAM
-}
+++ /dev/null
-/*
- * arch/v850/kernel/rte_nb85e_cb.c -- Midas labs RTE-V850E/NB85E-CB board
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/bootmem.h>
-#include <linux/irq.h>
-
-#include <asm/atomic.h>
-#include <asm/page.h>
-#include <asm/v850e.h>
-#include <asm/rte_nb85e_cb.h>
-
-#include "mach.h"
-
-void __init mach_early_init (void)
-{
- /* Configure caching; some possible settings:
-
- BHC = 0x0000, DCC = 0x0000 -- all caching disabled
- BHC = 0x0040, DCC = 0x0000 -- SDRAM: icache only
- BHC = 0x0080, DCC = 0x0C00 -- SDRAM: write-back dcache only
- BHC = 0x00C0, DCC = 0x0C00 -- SDRAM: icache + write-back dcache
- BHC = 0x00C0, DCC = 0x0800 -- SDRAM: icache + write-thru dcache
-
- We can only cache SDRAM (we can't use cache SRAM because it's in
- the same memory region as the on-chip RAM and I/O space).
-
- Unfortunately, the dcache seems to be buggy, so we only use the
- icache for now. */
- v850e_cache_enable (0x0040 /*BHC*/, 0x0003 /*ICC*/, 0x0000 /*DCC*/);
-
- rte_cb_early_init ();
-}
-
-void __init mach_get_physical_ram (unsigned long *ram_start,
- unsigned long *ram_len)
-{
- /* We just use SDRAM here. */
- *ram_start = SDRAM_ADDR;
- *ram_len = SDRAM_SIZE;
-}
-
-void mach_gettimeofday (struct timespec *tv)
-{
- tv->tv_sec = 0;
- tv->tv_nsec = 0;
-}
-
-/* Called before configuring an on-chip UART. */
-void rte_nb85e_cb_uart_pre_configure (unsigned chan,
- unsigned cflags, unsigned baud)
-{
- /* The RTE-NB85E-CB connects some general-purpose I/O pins on the
- CPU to the RTS/CTS lines the UART's serial connection, as follows:
- P00 = CTS (in), P01 = DSR (in), P02 = RTS (out), P03 = DTR (out). */
-
- TEG_PORT0_PM = 0x03; /* P00 and P01 inputs, P02 and P03 outputs */
- TEG_PORT0_IO = 0x03; /* Accept input */
-
- /* Do pre-configuration for the actual UART. */
- teg_uart_pre_configure (chan, cflags, baud);
-}
-
-void __init mach_init_irqs (void)
-{
- teg_init_irqs ();
- rte_cb_init_irqs ();
-}
+++ /dev/null
-/* Linker script for the Midas labs RTE-NB85E-CB evaluation board
- (CONFIG_RTE_CB_NB85E). */
-
-MEMORY {
- LOW : ORIGIN = 0x0, LENGTH = 0x00100000
- /* 1MB of SRAM This memory is mirrored 4 times. */
- SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE
- /* 16MB of SDRAM. */
- SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
-}
-
-#ifdef CONFIG_RTE_CB_NB85E_KSRAM
-# define KRAM SRAM
-#else
-# define KRAM SDRAM
-#endif
-
-SECTIONS {
- .intv : { INTV_CONTENTS } > LOW
- .sram : { RAMK_KRAM_CONTENTS } > KRAM
- .root : { ROOT_FS_CONTENTS } > SDRAM
-}
+++ /dev/null
-/*
- * arch/v850/kernel/setup.c -- Arch-dependent initialization functions
- *
- * Copyright (C) 2001,02,03,05,06 NEC Electronics Corporation
- * Copyright (C) 2001,02,03,05,06 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/mm.h>
-#include <linux/bootmem.h>
-#include <linux/swap.h> /* we don't have swap, but for nr_free_pages */
-#include <linux/irq.h>
-#include <linux/reboot.h>
-#include <linux/personality.h>
-#include <linux/major.h>
-#include <linux/root_dev.h>
-#include <linux/mtd/mtd.h>
-#include <linux/init.h>
-
-#include <asm/irq.h>
-#include <asm/setup.h>
-
-#include "mach.h"
-
-/* These symbols are all defined in the linker map to delineate various
- statically allocated regions of memory. */
-
-extern char _intv_start, _intv_end;
-/* `kram' is only used if the kernel uses part of normal user RAM. */
-extern char _kram_start __attribute__ ((__weak__));
-extern char _kram_end __attribute__ ((__weak__));
-extern char _init_start, _init_end;
-extern char _bootmap;
-extern char _stext, _etext, _sdata, _edata, _sbss, _ebss;
-/* Many platforms use an embedded root image. */
-extern char _root_fs_image_start __attribute__ ((__weak__));
-extern char _root_fs_image_end __attribute__ ((__weak__));
-
-
-char __initdata command_line[COMMAND_LINE_SIZE];
-
-/* Memory not used by the kernel. */
-static unsigned long total_ram_pages;
-
-/* System RAM. */
-static unsigned long ram_start = 0, ram_len = 0;
-
-
-#define ADDR_TO_PAGE_UP(x) ((((unsigned long)x) + PAGE_SIZE-1) >> PAGE_SHIFT)
-#define ADDR_TO_PAGE(x) (((unsigned long)x) >> PAGE_SHIFT)
-#define PAGE_TO_ADDR(x) (((unsigned long)x) << PAGE_SHIFT)
-
-static void init_mem_alloc (unsigned long ram_start, unsigned long ram_len);
-
-void set_mem_root (void *addr, size_t len, char *cmd_line);
-
-
-void __init setup_arch (char **cmdline)
-{
- /* Keep a copy of command line */
- *cmdline = command_line;
- memcpy (boot_command_line, command_line, COMMAND_LINE_SIZE);
- boot_command_line[COMMAND_LINE_SIZE - 1] = '\0';
-
- console_verbose ();
-
- init_mm.start_code = (unsigned long) &_stext;
- init_mm.end_code = (unsigned long) &_etext;
- init_mm.end_data = (unsigned long) &_edata;
- init_mm.brk = (unsigned long) &_kram_end;
-
- /* Find out what mem this machine has. */
- mach_get_physical_ram (&ram_start, &ram_len);
- /* ... and tell the kernel about it. */
- init_mem_alloc (ram_start, ram_len);
-
- printk (KERN_INFO "CPU: %s\nPlatform: %s\n",
- CPU_MODEL_LONG, PLATFORM_LONG);
-
- /* do machine-specific setups. */
- mach_setup (cmdline);
-
-#ifdef CONFIG_MTD
- if (!ROOT_DEV && &_root_fs_image_end > &_root_fs_image_start)
- set_mem_root (&_root_fs_image_start,
- &_root_fs_image_end - &_root_fs_image_start,
- *cmdline);
-#endif
-}
-
-void __init trap_init (void)
-{
-}
-
-#ifdef CONFIG_MTD
-
-/* From drivers/mtd/devices/slram.c */
-#define SLRAM_BLK_SZ 0x4000
-
-/* Set the root filesystem to be the given memory region.
- Some parameter may be appended to CMD_LINE. */
-void set_mem_root (void *addr, size_t len, char *cmd_line)
-{
- /* Some sort of idiocy in MTD means we must supply a length that's
- a multiple of SLRAM_BLK_SZ. We just round up the real length,
- as the file system shouldn't attempt to access anything beyond
- the end of the image anyway. */
- len = (((len - 1) + SLRAM_BLK_SZ) / SLRAM_BLK_SZ) * SLRAM_BLK_SZ;
-
- /* The only way to pass info to the MTD slram driver is via
- the command line. */
- if (*cmd_line) {
- cmd_line += strlen (cmd_line);
- *cmd_line++ = ' ';
- }
- sprintf (cmd_line, "slram=root,0x%x,+0x%x", (u32)addr, (u32)len);
-
- ROOT_DEV = MKDEV (MTD_BLOCK_MAJOR, 0);
-}
-#endif
-
-\f
-static void irq_nop (unsigned irq) { }
-static unsigned irq_zero (unsigned irq) { return 0; }
-
-static void nmi_end (unsigned irq)
-{
- if (irq != IRQ_NMI (0)) {
- printk (KERN_CRIT "NMI %d is unrecoverable; restarting...",
- irq - IRQ_NMI (0));
- machine_restart (0);
- }
-}
-
-static struct hw_interrupt_type nmi_irq_type = {
- .typename = "NMI",
- .startup = irq_zero, /* startup */
- .shutdown = irq_nop, /* shutdown */
- .enable = irq_nop, /* enable */
- .disable = irq_nop, /* disable */
- .ack = irq_nop, /* ack */
- .end = nmi_end, /* end */
-};
-
-void __init init_IRQ (void)
-{
- init_irq_handlers (0, NUM_MACH_IRQS, 1, 0);
- init_irq_handlers (IRQ_NMI (0), NUM_NMIS, 1, &nmi_irq_type);
- mach_init_irqs ();
-}
-
-\f
-void __init mem_init (void)
-{
- max_mapnr = MAP_NR (ram_start + ram_len);
-
- num_physpages = ADDR_TO_PAGE (ram_len);
-
- total_ram_pages = free_all_bootmem ();
-
- printk (KERN_INFO
- "Memory: %luK/%luK available"
- " (%luK kernel code, %luK data)\n",
- PAGE_TO_ADDR (nr_free_pages()) / 1024,
- ram_len / 1024,
- ((unsigned long)&_etext - (unsigned long)&_stext) / 1024,
- ((unsigned long)&_ebss - (unsigned long)&_sdata) / 1024);
-}
-
-void free_initmem (void)
-{
- unsigned long ram_end = ram_start + ram_len;
- unsigned long start = PAGE_ALIGN ((unsigned long)(&_init_start));
-
- if (start >= ram_start && start < ram_end) {
- unsigned long addr;
- unsigned long end = PAGE_ALIGN ((unsigned long)(&_init_end));
-
- if (end > ram_end)
- end = ram_end;
-
- printk("Freeing unused kernel memory: %ldK freed\n",
- (end - start) / 1024);
-
- for (addr = start; addr < end; addr += PAGE_SIZE) {
- struct page *page = virt_to_page (addr);
- ClearPageReserved (page);
- init_page_count (page);
- __free_page (page);
- total_ram_pages++;
- }
- }
-}
-
-\f
-/* Initialize the `bootmem allocator'. RAM_START and RAM_LEN identify
- what RAM may be used. */
-static void __init
-init_bootmem_alloc (unsigned long ram_start, unsigned long ram_len)
-{
- /* The part of the kernel that's in the same managed RAM space
- used for general allocation. */
- unsigned long kram_start = (unsigned long)&_kram_start;
- unsigned long kram_end = (unsigned long)&_kram_end;
- /* End of the managed RAM space. */
- unsigned long ram_end = ram_start + ram_len;
- /* Address range of the interrupt vector table. */
- unsigned long intv_start = (unsigned long)&_intv_start;
- unsigned long intv_end = (unsigned long)&_intv_end;
- /* True if the interrupt vectors are in the managed RAM area. */
- int intv_in_ram = (intv_end > ram_start && intv_start < ram_end);
- /* True if the interrupt vectors are inside the kernel's RAM. */
- int intv_in_kram = (intv_end > kram_start && intv_start < kram_end);
- /* A pointer to an optional function that reserves platform-specific
- memory regions. We declare the pointer `volatile' to avoid gcc
- turning the call into a static call (the problem is that since
- it's a weak symbol, a static call may end up trying to reference
- the location 0x0, which is not always reachable). */
- void (*volatile mrb) (void) = mach_reserve_bootmem;
- /* The bootmem allocator's allocation bitmap. */
- unsigned long bootmap = (unsigned long)&_bootmap;
- unsigned long bootmap_len;
-
- /* Round bootmap location up to next page. */
- bootmap = PAGE_TO_ADDR (ADDR_TO_PAGE_UP (bootmap));
-
- /* Initialize bootmem allocator. */
- bootmap_len = init_bootmem_node (NODE_DATA (0),
- ADDR_TO_PAGE (bootmap),
- ADDR_TO_PAGE (PAGE_OFFSET),
- ADDR_TO_PAGE (ram_end));
-
- /* Now make the RAM actually allocatable (it starts out `reserved'). */
- free_bootmem (ram_start, ram_len);
-
- if (kram_end > kram_start)
- /* Reserve the RAM part of the kernel's address space, so it
- doesn't get allocated. */
- reserve_bootmem(kram_start, kram_end - kram_start,
- BOOTMEM_DEFAULT);
-
- if (intv_in_ram && !intv_in_kram)
- /* Reserve the interrupt vector space. */
- reserve_bootmem(intv_start, intv_end - intv_start,
- BOOTMEM_DEFAULT);
-
- if (bootmap >= ram_start && bootmap < ram_end)
- /* Reserve the bootmap space. */
- reserve_bootmem(bootmap, bootmap_len,
- BOOTMEM_DEFAULT);
-
- /* Reserve the memory used by the root filesystem image if it's
- in RAM. */
- if (&_root_fs_image_end > &_root_fs_image_start
- && (unsigned long)&_root_fs_image_start >= ram_start
- && (unsigned long)&_root_fs_image_start < ram_end)
- reserve_bootmem ((unsigned long)&_root_fs_image_start,
- &_root_fs_image_end - &_root_fs_image_start,
- BOOTMEM_DEFAULT);
-
- /* Let the platform-dependent code reserve some too. */
- if (mrb)
- (*mrb) ();
-}
-
-/* Tell the kernel about what RAM it may use for memory allocation. */
-static void __init
-init_mem_alloc (unsigned long ram_start, unsigned long ram_len)
-{
- unsigned i;
- unsigned long zones_size[MAX_NR_ZONES];
-
- init_bootmem_alloc (ram_start, ram_len);
-
- for (i = 0; i < MAX_NR_ZONES; i++)
- zones_size[i] = 0;
-
- /* We stuff all the memory into one area, which includes the
- initial gap from PAGE_OFFSET to ram_start. */
- zones_size[ZONE_DMA]
- = ADDR_TO_PAGE (ram_len + (ram_start - PAGE_OFFSET));
-
- /* The allocator is very picky about the address of the first
- allocatable page -- it must be at least as aligned as the
- maximum allocation -- so try to detect cases where it will get
- confused and signal them at compile time (this is a common
- problem when porting to a new platform with ). There is a
- similar runtime check in free_area_init_core. */
-#if ((PAGE_OFFSET >> PAGE_SHIFT) & ((1UL << (MAX_ORDER - 1)) - 1))
-#error MAX_ORDER is too large for given PAGE_OFFSET (use CONFIG_FORCE_MAX_ZONEORDER to change it)
-#endif
- NODE_DATA(0)->node_mem_map = NULL;
- free_area_init_node (0, NODE_DATA(0), zones_size,
- ADDR_TO_PAGE (PAGE_OFFSET), 0);
-}
-
-\f
-
-/* Taken from m68knommu */
-void show_mem(void)
-{
- unsigned long i;
- int free = 0, total = 0, reserved = 0, shared = 0;
- int cached = 0;
-
- printk(KERN_INFO "\nMem-info:\n");
- show_free_areas();
- i = max_mapnr;
- while (i-- > 0) {
- total++;
- if (PageReserved(mem_map+i))
- reserved++;
- else if (PageSwapCache(mem_map+i))
- cached++;
- else if (!page_count(mem_map+i))
- free++;
- else
- shared += page_count(mem_map+i) - 1;
- }
- printk(KERN_INFO "%d pages of RAM\n",total);
- printk(KERN_INFO "%d free pages\n",free);
- printk(KERN_INFO "%d reserved pages\n",reserved);
- printk(KERN_INFO "%d pages shared\n",shared);
- printk(KERN_INFO "%d pages swap cached\n",cached);
-}
+++ /dev/null
-/*
- * arch/v850/kernel/signal.c -- Signal handling
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- * Copyright (C) 1999,2000,2002 Niibe Yutaka & Kaz Kojima
- * Copyright (C) 1991,1992 Linus Torvalds
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * 1997-11-28 Modified for POSIX.1b signals by Richard Henderson
- *
- * This file was derived from the sh version, arch/sh/kernel/signal.c
- */
-
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/errno.h>
-#include <linux/wait.h>
-#include <linux/ptrace.h>
-#include <linux/unistd.h>
-#include <linux/stddef.h>
-#include <linux/personality.h>
-#include <linux/tty.h>
-
-#include <asm/ucontext.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/pgalloc.h>
-#include <asm/thread_info.h>
-#include <asm/cacheflush.h>
-
-#define DEBUG_SIG 0
-
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
-asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset);
-
-/*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-asmlinkage int
-sys_sigsuspend(old_sigset_t mask, struct pt_regs *regs)
-{
- sigset_t saveset;
-
- mask &= _BLOCKABLE;
- spin_lock_irq(¤t->sighand->siglock);
- saveset = current->blocked;
- siginitset(¤t->blocked, mask);
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
-
- regs->gpr[GPR_RVAL] = -EINTR;
- while (1) {
- current->state = TASK_INTERRUPTIBLE;
- schedule();
- if (do_signal(regs, &saveset))
- return -EINTR;
- }
-}
-
-asmlinkage int
-sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize,
- struct pt_regs *regs)
-{
- sigset_t saveset, newset;
-
- /* XXX: Don't preclude handling different sized sigset_t's. */
- if (sigsetsize != sizeof(sigset_t))
- return -EINVAL;
-
- if (copy_from_user(&newset, unewset, sizeof(newset)))
- return -EFAULT;
- sigdelsetmask(&newset, ~_BLOCKABLE);
- spin_lock_irq(¤t->sighand->siglock);
- saveset = current->blocked;
- current->blocked = newset;
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
-
- regs->gpr[GPR_RVAL] = -EINTR;
- while (1) {
- current->state = TASK_INTERRUPTIBLE;
- schedule();
- if (do_signal(regs, &saveset))
- return -EINTR;
- }
-}
-
-asmlinkage int
-sys_sigaction(int sig, const struct old_sigaction *act,
- struct old_sigaction *oact)
-{
- struct k_sigaction new_ka, old_ka;
- int ret;
-
- if (act) {
- old_sigset_t mask;
- if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
- __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
- __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
- return -EFAULT;
- __get_user(new_ka.sa.sa_flags, &act->sa_flags);
- __get_user(mask, &act->sa_mask);
- siginitset(&new_ka.sa.sa_mask, mask);
- }
-
- ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
- if (!ret && oact) {
- if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
- __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
- __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
- return -EFAULT;
- __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
- __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
- }
-
- return ret;
-}
-
-asmlinkage int
-sys_sigaltstack(const stack_t *uss, stack_t *uoss,
- struct pt_regs *regs)
-{
- return do_sigaltstack(uss, uoss, regs->gpr[GPR_SP]);
-}
-
-
-/*
- * Do a signal return; undo the signal stack.
- */
-
-struct sigframe
-{
- struct sigcontext sc;
- unsigned long extramask[_NSIG_WORDS-1];
- unsigned long tramp[2]; /* signal trampoline */
-};
-
-struct rt_sigframe
-{
- struct siginfo info;
- struct ucontext uc;
- unsigned long tramp[2]; /* signal trampoline */
-};
-
-static int
-restore_sigcontext(struct pt_regs *regs, struct sigcontext *sc, int *rval_p)
-{
- unsigned int err = 0;
-
-#define COPY(x) err |= __get_user(regs->x, &sc->regs.x)
- COPY(gpr[0]); COPY(gpr[1]); COPY(gpr[2]); COPY(gpr[3]);
- COPY(gpr[4]); COPY(gpr[5]); COPY(gpr[6]); COPY(gpr[7]);
- COPY(gpr[8]); COPY(gpr[9]); COPY(gpr[10]); COPY(gpr[11]);
- COPY(gpr[12]); COPY(gpr[13]); COPY(gpr[14]); COPY(gpr[15]);
- COPY(gpr[16]); COPY(gpr[17]); COPY(gpr[18]); COPY(gpr[19]);
- COPY(gpr[20]); COPY(gpr[21]); COPY(gpr[22]); COPY(gpr[23]);
- COPY(gpr[24]); COPY(gpr[25]); COPY(gpr[26]); COPY(gpr[27]);
- COPY(gpr[28]); COPY(gpr[29]); COPY(gpr[30]); COPY(gpr[31]);
- COPY(pc); COPY(psw);
- COPY(ctpc); COPY(ctpsw); COPY(ctbp);
-#undef COPY
-
- return err;
-}
-
-asmlinkage int sys_sigreturn(struct pt_regs *regs)
-{
- struct sigframe *frame = (struct sigframe *)regs->gpr[GPR_SP];
- sigset_t set;
- int rval;
-
- if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
- goto badframe;
-
- if (__get_user(set.sig[0], &frame->sc.oldmask)
- || (_NSIG_WORDS > 1
- && __copy_from_user(&set.sig[1], &frame->extramask,
- sizeof(frame->extramask))))
- goto badframe;
-
- sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(¤t->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
-
- if (restore_sigcontext(regs, &frame->sc, &rval))
- goto badframe;
- return rval;
-
-badframe:
- force_sig(SIGSEGV, current);
- return 0;
-}
-
-asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
-{
- struct rt_sigframe *frame = (struct rt_sigframe *)regs->gpr[GPR_SP];
- sigset_t set;
- stack_t st;
- int rval;
-
- if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
- goto badframe;
-
- if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
- goto badframe;
-
- sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(¤t->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
-
- if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &rval))
- goto badframe;
-
- if (__copy_from_user(&st, &frame->uc.uc_stack, sizeof(st)))
- goto badframe;
- /* It is more difficult to avoid calling this function than to
- call it and ignore errors. */
- do_sigaltstack(&st, NULL, regs->gpr[GPR_SP]);
-
- return rval;
-
-badframe:
- force_sig(SIGSEGV, current);
- return 0;
-}
-
-/*
- * Set up a signal frame.
- */
-
-static int
-setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs,
- unsigned long mask)
-{
- int err = 0;
-
-#define COPY(x) err |= __put_user(regs->x, &sc->regs.x)
- COPY(gpr[0]); COPY(gpr[1]); COPY(gpr[2]); COPY(gpr[3]);
- COPY(gpr[4]); COPY(gpr[5]); COPY(gpr[6]); COPY(gpr[7]);
- COPY(gpr[8]); COPY(gpr[9]); COPY(gpr[10]); COPY(gpr[11]);
- COPY(gpr[12]); COPY(gpr[13]); COPY(gpr[14]); COPY(gpr[15]);
- COPY(gpr[16]); COPY(gpr[17]); COPY(gpr[18]); COPY(gpr[19]);
- COPY(gpr[20]); COPY(gpr[21]); COPY(gpr[22]); COPY(gpr[23]);
- COPY(gpr[24]); COPY(gpr[25]); COPY(gpr[26]); COPY(gpr[27]);
- COPY(gpr[28]); COPY(gpr[29]); COPY(gpr[30]); COPY(gpr[31]);
- COPY(pc); COPY(psw);
- COPY(ctpc); COPY(ctpsw); COPY(ctbp);
-#undef COPY
-
- err |= __put_user(mask, &sc->oldmask);
-
- return err;
-}
-
-/*
- * Determine which stack to use..
- */
-static inline void *
-get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size)
-{
- /* Default to using normal stack */
- unsigned long sp = regs->gpr[GPR_SP];
-
- if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! sas_ss_flags(sp))
- sp = current->sas_ss_sp + current->sas_ss_size;
-
- return (void *)((sp - frame_size) & -8UL);
-}
-
-static void setup_frame(int sig, struct k_sigaction *ka,
- sigset_t *set, struct pt_regs *regs)
-{
- struct sigframe *frame;
- int err = 0;
- int signal;
-
- frame = get_sigframe(ka, regs, sizeof(*frame));
-
- if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
- goto give_sigsegv;
-
- signal = current_thread_info()->exec_domain
- && current_thread_info()->exec_domain->signal_invmap
- && sig < 32
- ? current_thread_info()->exec_domain->signal_invmap[sig]
- : sig;
-
- err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);
-
- if (_NSIG_WORDS > 1) {
- err |= __copy_to_user(frame->extramask, &set->sig[1],
- sizeof(frame->extramask));
- }
-
- /* Set up to return from userspace. If provided, use a stub
- already in userspace. */
- if (ka->sa.sa_flags & SA_RESTORER) {
- regs->gpr[GPR_LP] = (unsigned long) ka->sa.sa_restorer;
- } else {
- /* Note, these encodings are _little endian_! */
-
- /* addi __NR_sigreturn, r0, r12 */
- err |= __put_user(0x6600 | (__NR_sigreturn << 16),
- frame->tramp + 0);
- /* trap 0 */
- err |= __put_user(0x010007e0,
- frame->tramp + 1);
-
- regs->gpr[GPR_LP] = (unsigned long)frame->tramp;
-
- flush_cache_sigtramp (regs->gpr[GPR_LP]);
- }
-
- if (err)
- goto give_sigsegv;
-
- /* Set up registers for signal handler. */
- regs->pc = (v850_reg_t) ka->sa.sa_handler;
- regs->gpr[GPR_SP] = (v850_reg_t)frame;
- /* Signal handler args: */
- regs->gpr[GPR_ARG0] = signal; /* arg 0: signum */
- regs->gpr[GPR_ARG1] = (v850_reg_t)&frame->sc;/* arg 1: sigcontext */
-
- set_fs(USER_DS);
-
-#if DEBUG_SIG
- printk("SIG deliver (%s:%d): sp=%p pc=%08lx ra=%08lx\n",
- current->comm, current->pid, frame, regs->pc, );
-#endif
-
- return;
-
-give_sigsegv:
- force_sigsegv(sig, current);
-}
-
-static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
- sigset_t *set, struct pt_regs *regs)
-{
- struct rt_sigframe *frame;
- int err = 0;
- int signal;
-
- frame = get_sigframe(ka, regs, sizeof(*frame));
-
- if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
- goto give_sigsegv;
-
- signal = current_thread_info()->exec_domain
- && current_thread_info()->exec_domain->signal_invmap
- && sig < 32
- ? current_thread_info()->exec_domain->signal_invmap[sig]
- : sig;
-
- err |= copy_siginfo_to_user(&frame->info, info);
-
- /* Create the ucontext. */
- err |= __put_user(0, &frame->uc.uc_flags);
- err |= __put_user(0, &frame->uc.uc_link);
- err |= __put_user((void *)current->sas_ss_sp,
- &frame->uc.uc_stack.ss_sp);
- err |= __put_user(sas_ss_flags(regs->gpr[GPR_SP]),
- &frame->uc.uc_stack.ss_flags);
- err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
- err |= setup_sigcontext(&frame->uc.uc_mcontext,
- regs, set->sig[0]);
- err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
-
- /* Set up to return from userspace. If provided, use a stub
- already in userspace. */
- if (ka->sa.sa_flags & SA_RESTORER) {
- regs->gpr[GPR_LP] = (unsigned long) ka->sa.sa_restorer;
- } else {
- /* Note, these encodings are _little endian_! */
-
- /* addi __NR_sigreturn, r0, r12 */
- err |= __put_user(0x6600 | (__NR_sigreturn << 16),
- frame->tramp + 0);
- /* trap 0 */
- err |= __put_user(0x010007e0,
- frame->tramp + 1);
-
- regs->gpr[GPR_LP] = (unsigned long)frame->tramp;
-
- flush_cache_sigtramp (regs->gpr[GPR_LP]);
- }
-
- if (err)
- goto give_sigsegv;
-
- /* Set up registers for signal handler. */
- regs->pc = (v850_reg_t) ka->sa.sa_handler;
- regs->gpr[GPR_SP] = (v850_reg_t)frame;
- /* Signal handler args: */
- regs->gpr[GPR_ARG0] = signal; /* arg 0: signum */
- regs->gpr[GPR_ARG1] = (v850_reg_t)&frame->info; /* arg 1: siginfo */
- regs->gpr[GPR_ARG2] = (v850_reg_t)&frame->uc; /* arg 2: ucontext */
-
- set_fs(USER_DS);
-
-#if DEBUG_SIG
- printk("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n",
- current->comm, current->pid, frame, regs->pc, regs->pr);
-#endif
-
- return;
-
-give_sigsegv:
- force_sigsegv(sig, current);
-}
-
-/*
- * OK, we're invoking a handler
- */
-
-static void
-handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
- sigset_t *oldset, struct pt_regs * regs)
-{
- /* Are we from a system call? */
- if (PT_REGS_SYSCALL (regs)) {
- /* If so, check system call restarting.. */
- switch (regs->gpr[GPR_RVAL]) {
- case -ERESTART_RESTARTBLOCK:
- current_thread_info()->restart_block.fn =
- do_no_restart_syscall;
- /* fall through */
- case -ERESTARTNOHAND:
- regs->gpr[GPR_RVAL] = -EINTR;
- break;
-
- case -ERESTARTSYS:
- if (!(ka->sa.sa_flags & SA_RESTART)) {
- regs->gpr[GPR_RVAL] = -EINTR;
- break;
- }
- /* fallthrough */
- case -ERESTARTNOINTR:
- regs->gpr[12] = PT_REGS_SYSCALL (regs);
- regs->pc -= 4; /* Size of `trap 0' insn. */
- }
-
- PT_REGS_SET_SYSCALL (regs, 0);
- }
-
- /* Set up the stack frame */
- if (ka->sa.sa_flags & SA_SIGINFO)
- setup_rt_frame(sig, ka, info, oldset, regs);
- else
- setup_frame(sig, ka, oldset, regs);
-
- spin_lock_irq(¤t->sighand->siglock);
- sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask);
- if (!(ka->sa.sa_flags & SA_NODEFER))
- sigaddset(¤t->blocked,sig);
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
-}
-
-/*
- * Note that 'init' is a special process: it doesn't get signals it doesn't
- * want to handle. Thus you cannot kill init even with a SIGKILL even by
- * mistake.
- *
- * Note that we go through the signals twice: once to check the signals that
- * the kernel can handle, and then we build all the user-level signal handling
- * stack-frames in one go after that.
- */
-int do_signal(struct pt_regs *regs, sigset_t *oldset)
-{
- siginfo_t info;
- int signr;
- struct k_sigaction ka;
-
- /*
- * We want the common case to go fast, which
- * is why we may in certain cases get here from
- * kernel mode. Just return without doing anything
- * if so.
- */
- if (!user_mode(regs))
- return 1;
-
- if (!oldset)
- oldset = ¤t->blocked;
-
- signr = get_signal_to_deliver(&info, &ka, regs, NULL);
- if (signr > 0) {
- /* Whee! Actually deliver the signal. */
- handle_signal(signr, &info, &ka, oldset, regs);
- return 1;
- }
-
- /* Did we come from a system call? */
- if (PT_REGS_SYSCALL (regs)) {
- int rval = (int)regs->gpr[GPR_RVAL];
- /* Restart the system call - no handlers present */
- if (rval == -ERESTARTNOHAND
- || rval == -ERESTARTSYS
- || rval == -ERESTARTNOINTR)
- {
- regs->gpr[12] = PT_REGS_SYSCALL (regs);
- regs->pc -= 4; /* Size of `trap 0' insn. */
- }
- else if (rval == -ERESTART_RESTARTBLOCK) {
- regs->gpr[12] = __NR_restart_syscall;
- regs->pc -= 4; /* Size of `trap 0' insn. */
- }
- }
- return 0;
-}
+++ /dev/null
-/*
- * arch/v850/kernel/sim.c -- Machine-specific stuff for GDB v850e simulator
- *
- * Copyright (C) 2001,02 NEC Corporation
- * Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/bootmem.h>
-#include <linux/irq.h>
-
-#include <asm/atomic.h>
-#include <asm/page.h>
-#include <asm/machdep.h>
-#include <asm/simsyscall.h>
-
-#include "mach.h"
-
-/* The name of a file containing the root filesystem. */
-#define ROOT_FS "rootfs.image"
-
-extern void simcons_setup (void);
-extern void simcons_poll_ttys (void);
-extern void set_mem_root (void *addr, size_t len, char *cmd_line);
-
-static int read_file (const char *name,
- unsigned long *addr, unsigned long *len,
- const char **err);
-
-void __init mach_setup (char **cmdline)
-{
- const char *err;
- unsigned long root_dev_addr, root_dev_len;
-
- simcons_setup ();
-
- printk (KERN_INFO "Reading root filesystem: %s", ROOT_FS);
-
- if (read_file (ROOT_FS, &root_dev_addr, &root_dev_len, &err)) {
- printk (" (size %luK)\n", root_dev_len / 1024);
- set_mem_root ((void *)root_dev_addr, (size_t)root_dev_len,
- *cmdline);
- } else
- printk ("...%s failed!\n", err);
-}
-
-void mach_get_physical_ram (unsigned long *ram_start, unsigned long *ram_len)
-{
- *ram_start = RAM_ADDR;
- *ram_len = RAM_SIZE;
-}
-
-void __init mach_sched_init (struct irqaction *timer_action)
-{
- /* ...do magic timer initialization?... */
- mach_tick = simcons_poll_ttys;
- setup_irq (0, timer_action);
-}
-
-\f
-static void irq_nop (unsigned irq) { }
-static unsigned irq_zero (unsigned irq) { return 0; }
-
-static struct hw_interrupt_type sim_irq_type = {
- .typename = "IRQ",
- .startup = irq_zero, /* startup */
- .shutdown = irq_nop, /* shutdown */
- .enable = irq_nop, /* enable */
- .disable = irq_nop, /* disable */
- .ack = irq_nop, /* ack */
- .end = irq_nop, /* end */
-};
-
-void __init mach_init_irqs (void)
-{
- init_irq_handlers (0, NUM_MACH_IRQS, 1, &sim_irq_type);
-}
-
-\f
-void mach_gettimeofday (struct timespec *tv)
-{
- long timeval[2], timezone[2];
- int rval = V850_SIM_SYSCALL (gettimeofday, timeval, timezone);
- if (rval == 0) {
- tv->tv_sec = timeval[0];
- tv->tv_nsec = timeval[1] * 1000;
- }
-}
-
-void machine_restart (char *__unused)
-{
- V850_SIM_SYSCALL (write, 1, "RESTART\n", 8);
- V850_SIM_SYSCALL (exit, 0);
-}
-
-void machine_halt (void)
-{
- V850_SIM_SYSCALL (write, 1, "HALT\n", 5);
- V850_SIM_SYSCALL (exit, 0);
-}
-
-void machine_power_off (void)
-{
- V850_SIM_SYSCALL (write, 1, "POWER OFF\n", 10);
- V850_SIM_SYSCALL (exit, 0);
-}
-
-\f
-/* Load data from a file called NAME into ram. The address and length
- of the data image are returned in ADDR and LEN. */
-static int __init
-read_file (const char *name,
- unsigned long *addr, unsigned long *len,
- const char **err)
-{
- int rval, fd;
- unsigned long cur, left;
- /* Note this is not a normal stat buffer, it's an ad-hoc
- structure defined by the simulator. */
- unsigned long stat_buf[10];
-
- /* Stat the file to find out the length. */
- rval = V850_SIM_SYSCALL (stat, name, stat_buf);
- if (rval < 0) {
- if (err) *err = "stat";
- return 0;
- }
- *len = stat_buf[4];
-
- /* Open the file; `0' is O_RDONLY. */
- fd = V850_SIM_SYSCALL (open, name, 0);
- if (fd < 0) {
- if (err) *err = "open";
- return 0;
- }
-
- *addr = (unsigned long)alloc_bootmem(*len);
- if (! *addr) {
- V850_SIM_SYSCALL (close, fd);
- if (err) *err = "alloc_bootmem";
- return 0;
- }
-
- cur = *addr;
- left = *len;
- while (left > 0) {
- int chunk = V850_SIM_SYSCALL (read, fd, cur, left);
- if (chunk <= 0)
- break;
- cur += chunk;
- left -= chunk;
- }
- V850_SIM_SYSCALL (close, fd);
- if (left > 0) {
- /* Some read failed. */
- free_bootmem (*addr, *len);
- if (err) *err = "read";
- return 0;
- }
-
- return 1;
-}
+++ /dev/null
-/* Linker script for the gdb v850e simulator (CONFIG_V850E_SIM). */
-
-MEMORY {
- /* Interrupt vectors. */
- INTV : ORIGIN = 0x0, LENGTH = 0xe0
- /* Main RAM. */
- RAM : ORIGIN = RAM_ADDR, LENGTH = RAM_SIZE
-}
-
-SECTIONS {
- .intv : { INTV_CONTENTS } > INTV
- .ram : { RAMK_KRAM_CONTENTS } > RAM
-}
+++ /dev/null
-/*
- * arch/v850/kernel/sim85e2.c -- Machine-specific stuff for
- * V850E2 RTL simulator
- *
- * Copyright (C) 2002,03 NEC Electronics Corporation
- * Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/bootmem.h>
-#include <linux/irq.h>
-
-#include <asm/atomic.h>
-#include <asm/page.h>
-#include <asm/machdep.h>
-
-#include "mach.h"
-
-
-/* There are 4 possible areas we can use:
-
- IRAM (1MB) is fast for instruction fetches, but slow for data
- DRAM (1020KB) is fast for data, but slow for instructions
- ERAM is cached, so should be fast for both insns and data
- SDRAM is external DRAM, similar to ERAM
-*/
-
-#define INIT_MEMC_FOR_SDRAM
-#define USE_SDRAM_AREA
-#define KERNEL_IN_SDRAM_AREA
-
-#define DCACHE_MODE V850E2_CACHE_BTSC_DCM_WT
-/*#define DCACHE_MODE V850E2_CACHE_BTSC_DCM_WB_ALLOC*/
-
-#ifdef USE_SDRAM_AREA
-#define RAM_START SDRAM_ADDR
-#define RAM_END (SDRAM_ADDR + SDRAM_SIZE)
-#else
-/* When we use DRAM, we need to account for the fact that the end of it is
- used for R0_RAM. */
-#define RAM_START DRAM_ADDR
-#define RAM_END R0_RAM_ADDR
-#endif
-
-
-extern void memcons_setup (void);
-
-
-#ifdef KERNEL_IN_SDRAM_AREA
-#define EARLY_INIT_SECTION_ATTR __attribute__ ((section (".early.text")))
-#else
-#define EARLY_INIT_SECTION_ATTR __init
-#endif
-
-void EARLY_INIT_SECTION_ATTR mach_early_init (void)
-{
- /* The sim85e2 simulator tracks `undefined' values, so to make
- debugging easier, we begin by zeroing out all otherwise
- undefined registers. This is not strictly necessary.
-
- The registers we zero are:
- Every GPR except:
- stack-pointer (r3)
- task-pointer (r16)
- our return addr (r31)
- Every system register (SPR) that we know about except for
- the PSW (SPR 5), which we zero except for the
- disable-interrupts bit.
- */
-
- /* GPRs */
- asm volatile (" mov r0, r1 ; mov r0, r2 ");
- asm volatile ("mov r0, r4 ; mov r0, r5 ; mov r0, r6 ; mov r0, r7 ");
- asm volatile ("mov r0, r8 ; mov r0, r9 ; mov r0, r10; mov r0, r11");
- asm volatile ("mov r0, r12; mov r0, r13; mov r0, r14; mov r0, r15");
- asm volatile (" mov r0, r17; mov r0, r18; mov r0, r19");
- asm volatile ("mov r0, r20; mov r0, r21; mov r0, r22; mov r0, r23");
- asm volatile ("mov r0, r24; mov r0, r25; mov r0, r26; mov r0, r27");
- asm volatile ("mov r0, r28; mov r0, r29; mov r0, r30");
-
- /* SPRs */
- asm volatile ("ldsr r0, 0; ldsr r0, 1; ldsr r0, 2; ldsr r0, 3");
- asm volatile ("ldsr r0, 4");
- asm volatile ("addi 0x20, r0, r1; ldsr r1, 5"); /* PSW */
- asm volatile ("ldsr r0, 16; ldsr r0, 17; ldsr r0, 18; ldsr r0, 19");
- asm volatile ("ldsr r0, 20");
-
-
-#ifdef INIT_MEMC_FOR_SDRAM
- /* Settings for SDRAM controller. */
- V850E2_VSWC = 0x0042;
- V850E2_BSC = 0x9286;
- V850E2_BCT(0) = 0xb000; /* was: 0 */
- V850E2_BCT(1) = 0x000b;
- V850E2_ASC = 0;
- V850E2_LBS = 0xa9aa; /* was: 0xaaaa */
- V850E2_LBC(0) = 0;
- V850E2_LBC(1) = 0; /* was: 0x3 */
- V850E2_BCC = 0;
- V850E2_RFS(4) = 0x800a; /* was: 0xf109 */
- V850E2_SCR(4) = 0x2091; /* was: 0x20a1 */
- V850E2_RFS(3) = 0x800c;
- V850E2_SCR(3) = 0x20a1;
- V850E2_DWC(0) = 0;
- V850E2_DWC(1) = 0;
-#endif
-
-#if 0
-#ifdef CONFIG_V850E2_SIM85E2S
- /* Turn on the caches. */
- V850E2_CACHE_BTSC = V850E2_CACHE_BTSC_ICM | DCACHE_MODE;
- V850E2_BHC = 0x1010;
-#elif CONFIG_V850E2_SIM85E2C
- V850E2_CACHE_BTSC |= (V850E2_CACHE_BTSC_ICM | V850E2_CACHE_BTSC_DCM0);
- V850E2_BUSM_BHC = 0xFFFF;
-#endif
-#else
- V850E2_BHC = 0;
-#endif
-
- /* Don't stop the simulator at `halt' instructions. */
- SIM85E2_NOTHAL = 1;
-
- /* Ensure that the simulator halts on a panic, instead of going
- into an infinite loop inside the panic function. */
- panic_timeout = -1;
-}
-
-void __init mach_setup (char **cmdline)
-{
- memcons_setup ();
-}
-
-void mach_get_physical_ram (unsigned long *ram_start, unsigned long *ram_len)
-{
- *ram_start = RAM_START;
- *ram_len = RAM_END - RAM_START;
-}
-
-void __init mach_sched_init (struct irqaction *timer_action)
-{
- /* The simulator actually cycles through all interrupts
- periodically. We just pay attention to IRQ0, which gives us
- 1/64 the rate of the periodic interrupts. */
- setup_irq (0, timer_action);
-}
-
-void mach_gettimeofday (struct timespec *tv)
-{
- tv->tv_sec = 0;
- tv->tv_nsec = 0;
-}
-\f
-/* Interrupts */
-
-struct v850e_intc_irq_init irq_inits[] = {
- { "IRQ", 0, NUM_MACH_IRQS, 1, 7 },
- { 0 }
-};
-struct hw_interrupt_type hw_itypes[1];
-
-/* Initialize interrupts. */
-void __init mach_init_irqs (void)
-{
- v850e_intc_init_irq_types (irq_inits, hw_itypes);
-}
-\f
-
-void machine_halt (void) __attribute__ ((noreturn));
-void machine_halt (void)
-{
- SIM85E2_SIMFIN = 0; /* Halt immediately. */
- for (;;) {}
-}
-
-void machine_restart (char *__unused)
-{
- machine_halt ();
-}
-
-void machine_power_off (void)
-{
- machine_halt ();
-}
-
+++ /dev/null
-/* Linker script for the sim85e2c simulator, which is a verilog simulation of
- the V850E2 NA85E2C cpu core (CONFIG_V850E2_SIM85E2C). */
-
-MEMORY {
- /* 1MB of `instruction RAM', starting at 0.
- Instruction fetches are much faster from IRAM than from DRAM. */
- IRAM : ORIGIN = IRAM_ADDR, LENGTH = IRAM_SIZE
-
- /* 1MB of `data RAM', below and contiguous with the I/O space.
- Data fetches are much faster from DRAM than from IRAM. */
- DRAM : ORIGIN = DRAM_ADDR, LENGTH = DRAM_SIZE
-
- /* `external ram' (CS1 area), comes after IRAM. */
- ERAM : ORIGIN = ERAM_ADDR, LENGTH = ERAM_SIZE
-
- /* Dynamic RAM; uses memory controller. */
- SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
-}
-
-SECTIONS {
- .iram : {
- INTV_CONTENTS
- *arch/v850/kernel/head.o
- *(.early.text)
- } > IRAM
- .dram : {
- _memcons_output = . ;
- . = . + 0x8000 ;
- _memcons_output_end = . ;
- } > DRAM
- .sdram : {
- /* We stick console output into a buffer here. */
- RAMK_KRAM_CONTENTS
- ROOT_FS_CONTENTS
- } > SDRAM
-}
+++ /dev/null
-/*
- * arch/v850/kernel/simcons.c -- Console I/O for GDB v850e simulator
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/console.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/tty_driver.h>
-#include <linux/init.h>
-
-#include <asm/poll.h>
-#include <asm/string.h>
-#include <asm/simsyscall.h>
-
-\f
-/* Low-level console. */
-
-static void simcons_write (struct console *co, const char *buf, unsigned len)
-{
- V850_SIM_SYSCALL (write, 1, buf, len);
-}
-
-static int simcons_read (struct console *co, char *buf, unsigned len)
-{
- return V850_SIM_SYSCALL (read, 0, buf, len);
-}
-
-static struct tty_driver *tty_driver;
-static struct tty_driver *simcons_device (struct console *c, int *index)
-{
- *index = c->index;
- return tty_driver;
-}
-
-static struct console simcons =
-{
- .name = "simcons",
- .write = simcons_write,
- .read = simcons_read,
- .device = simcons_device,
- .flags = CON_PRINTBUFFER,
- .index = -1,
-};
-\f
-/* Higher level TTY interface. */
-
-int simcons_tty_open (struct tty_struct *tty, struct file *filp)
-{
- return 0;
-}
-
-int simcons_tty_write (struct tty_struct *tty,
- const unsigned char *buf, int count)
-{
- return V850_SIM_SYSCALL (write, 1, buf, count);
-}
-
-int simcons_tty_write_room (struct tty_struct *tty)
-{
- /* Completely arbitrary. */
- return 0x100000;
-}
-
-int simcons_tty_chars_in_buffer (struct tty_struct *tty)
-{
- /* We have no buffer. */
- return 0;
-}
-
-static const struct tty_operations ops = {
- .open = simcons_tty_open,
- .write = simcons_tty_write,
- .write_room = simcons_tty_write_room,
- .chars_in_buffer = simcons_tty_chars_in_buffer,
-};
-
-int __init simcons_tty_init (void)
-{
- struct tty_driver *driver = alloc_tty_driver(1);
- int err;
- if (!driver)
- return -ENOMEM;
- driver->name = "simcons";
- driver->major = TTY_MAJOR;
- driver->minor_start = 64;
- driver->type = TTY_DRIVER_TYPE_SYSCONS;
- driver->init_termios = tty_std_termios;
- tty_set_operations(driver, &ops);
- err = tty_register_driver(driver);
- if (err) {
- put_tty_driver(driver);
- return err;
- }
- tty_driver = driver;
- return 0;
-}
-/* We use `late_initcall' instead of just `__initcall' as a workaround for
- the fact that (1) simcons_tty_init can't be called before tty_init,
- (2) tty_init is called via `module_init', (3) if statically linked,
- module_init == device_init, and (4) there's no ordering of init lists.
- We can do this easily because simcons is always statically linked, but
- other tty drivers that depend on tty_init and which must use
- `module_init' to declare their init routines are likely to be broken. */
-late_initcall(simcons_tty_init);
-\f
-/* Poll for input on the console, and if there's any, deliver it to the
- tty driver. */
-void simcons_poll_tty (struct tty_struct *tty)
-{
- char buf[32]; /* Not the nicest way to do it but I need it correct first */
- int flip = 0, send_break = 0;
- struct pollfd pfd;
- pfd.fd = 0;
- pfd.events = POLLIN;
-
- if (V850_SIM_SYSCALL (poll, &pfd, 1, 0) > 0) {
- if (pfd.revents & POLLIN) {
- /* Real block hardware knows the transfer size before
- transfer so the new tty buffering doesn't try to handle
- this rather weird simulator specific case well */
- int rd = V850_SIM_SYSCALL (read, 0, buf, 32);
- if (rd > 0) {
- tty_insert_flip_string(tty, buf, rd);
- flip = 1;
- } else
- send_break = 1;
- } else if (pfd.revents & POLLERR)
- send_break = 1;
- }
-
- if (send_break) {
- tty_insert_flip_char (tty, 0, TTY_BREAK);
- flip = 1;
- }
-
- if (flip)
- tty_schedule_flip (tty);
-}
-
-void simcons_poll_ttys (void)
-{
- if (tty_driver && tty_driver->ttys[0])
- simcons_poll_tty (tty_driver->ttys[0]);
-}
-\f
-void simcons_setup (void)
-{
- V850_SIM_SYSCALL (make_raw, 0);
- register_console (&simcons);
- printk (KERN_INFO "Console: GDB V850E simulator stdio\n");
-}
+++ /dev/null
-/*
- * arch/v850/kernel/syscalls.c -- Various system-call definitions not
- * defined in machine-independent code
- *
- * Copyright (C) 2001,02 NEC Corporation
- * Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * This file was derived the ppc version, arch/ppc/kernel/syscalls.c
- * ... which was derived from "arch/i386/kernel/sys_i386.c" by Gary Thomas;
- * modified by Cort Dougan (cort@cs.nmt.edu)
- * and Paul Mackerras (paulus@cs.anu.edu.au).
- */
-
-#include <linux/errno.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/syscalls.h>
-#include <linux/sem.h>
-#include <linux/msg.h>
-#include <linux/shm.h>
-#include <linux/stat.h>
-#include <linux/mman.h>
-#include <linux/sys.h>
-#include <linux/ipc.h>
-#include <linux/utsname.h>
-#include <linux/file.h>
-
-#include <asm/uaccess.h>
-#include <asm/unistd.h>
-
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-int
-sys_ipc (uint call, int first, int second, int third, void *ptr, long fifth)
-{
- int version, ret;
-
- version = call >> 16; /* hack for backward compatibility */
- call &= 0xffff;
-
- ret = -EINVAL;
- switch (call) {
- case SEMOP:
- ret = sys_semop (first, (struct sembuf *)ptr, second);
- break;
- case SEMGET:
- ret = sys_semget (first, second, third);
- break;
- case SEMCTL:
- {
- union semun fourth;
-
- if (!ptr)
- break;
- if ((ret = access_ok(VERIFY_READ, ptr, sizeof(long)) ? 0 : -EFAULT)
- || (ret = get_user(fourth.__pad, (void **)ptr)))
- break;
- ret = sys_semctl (first, second, third, fourth);
- break;
- }
- case MSGSND:
- ret = sys_msgsnd (first, (struct msgbuf *) ptr, second, third);
- break;
- case MSGRCV:
- switch (version) {
- case 0: {
- struct ipc_kludge tmp;
-
- if (!ptr)
- break;
- if ((ret = access_ok(VERIFY_READ, ptr, sizeof(tmp)) ? 0 : -EFAULT)
- || (ret = copy_from_user(&tmp,
- (struct ipc_kludge *) ptr,
- sizeof (tmp))))
- break;
- ret = sys_msgrcv (first, tmp.msgp, second, tmp.msgtyp,
- third);
- break;
- }
- default:
- ret = sys_msgrcv (first, (struct msgbuf *) ptr,
- second, fifth, third);
- break;
- }
- break;
- case MSGGET:
- ret = sys_msgget ((key_t) first, second);
- break;
- case MSGCTL:
- ret = sys_msgctl (first, second, (struct msqid_ds *) ptr);
- break;
- case SHMAT:
- switch (version) {
- default: {
- ulong raddr;
-
- if ((ret = access_ok(VERIFY_WRITE, (ulong*) third,
- sizeof(ulong)) ? 0 : -EFAULT))
- break;
- ret = do_shmat (first, (char *) ptr, second, &raddr);
- if (ret)
- break;
- ret = put_user (raddr, (ulong *) third);
- break;
- }
- case 1: /* iBCS2 emulator entry point */
- if (!segment_eq(get_fs(), get_ds()))
- break;
- ret = do_shmat (first, (char *) ptr, second,
- (ulong *) third);
- break;
- }
- break;
- case SHMDT:
- ret = sys_shmdt ((char *)ptr);
- break;
- case SHMGET:
- ret = sys_shmget (first, second, third);
- break;
- case SHMCTL:
- ret = sys_shmctl (first, second, (struct shmid_ds *) ptr);
- break;
- }
-
- return ret;
-}
-
-static inline unsigned long
-do_mmap2 (unsigned long addr, size_t len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff)
-{
- struct file * file = NULL;
- int ret = -EBADF;
-
- flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
- if (! (flags & MAP_ANONYMOUS)) {
- if (!(file = fget (fd)))
- goto out;
- }
-
- down_write (¤t->mm->mmap_sem);
- ret = do_mmap_pgoff (file, addr, len, prot, flags, pgoff);
- up_write (¤t->mm->mmap_sem);
- if (file)
- fput (file);
-out:
- return ret;
-}
-
-unsigned long sys_mmap2 (unsigned long addr, size_t len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff)
-{
- return do_mmap2 (addr, len, prot, flags, fd, pgoff);
-}
-
-unsigned long sys_mmap (unsigned long addr, size_t len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, off_t offset)
-{
- int err = -EINVAL;
-
- if (offset & ~PAGE_MASK)
- goto out;
-
- err = do_mmap2 (addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
-out:
- return err;
-}
-
-/*
- * Do a system call from kernel instead of calling sys_execve so we
- * end up with proper pt_regs.
- */
-int kernel_execve(const char *filename, char *const argv[], char *const envp[])
-{
- register char *__a __asm__ ("r6") = filename;
- register void *__b __asm__ ("r7") = argv;
- register void *__c __asm__ ("r8") = envp;
- register unsigned long __syscall __asm__ ("r12") = __NR_execve;
- register unsigned long __ret __asm__ ("r10");
- __asm__ __volatile__ ("trap 0"
- : "=r" (__ret), "=r" (__syscall)
- : "1" (__syscall), "r" (__a), "r" (__b), "r" (__c)
- : "r1", "r5", "r11", "r13", "r14",
- "r15", "r16", "r17", "r18", "r19");
- return __ret;
-}
+++ /dev/null
-/*
- * arch/v850/kernel/teg.c -- NB85E-TEG cpu chip
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/bootmem.h>
-#include <linux/irq.h>
-
-#include <asm/atomic.h>
-#include <asm/page.h>
-#include <asm/machdep.h>
-#include <asm/v850e_timer_d.h>
-
-#include "mach.h"
-
-void __init mach_sched_init (struct irqaction *timer_action)
-{
- /* Select timer interrupt instead of external pin. */
- TEG_ISS |= 0x1;
- /* Start hardware timer. */
- v850e_timer_d_configure (0, HZ);
- /* Install timer interrupt handler. */
- setup_irq (IRQ_INTCMD(0), timer_action);
-}
-
-static struct v850e_intc_irq_init irq_inits[] = {
- { "IRQ", 0, NUM_CPU_IRQS, 1, 7 },
- { "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 5 },
- { "SER", IRQ_INTSER(0), IRQ_INTSER_NUM, 1, 3 },
- { "SR", IRQ_INTSR(0), IRQ_INTSR_NUM, 1, 4 },
- { "ST", IRQ_INTST(0), IRQ_INTST_NUM, 1, 5 },
- { 0 }
-};
-#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1)
-
-static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS];
-
-/* Initialize MA chip interrupts. */
-void __init teg_init_irqs (void)
-{
- v850e_intc_init_irq_types (irq_inits, hw_itypes);
-}
-
-/* Called before configuring an on-chip UART. */
-void teg_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud)
-{
- /* Enable UART I/O pins instead of external interrupt pins, and
- UART interrupts instead of external pin interrupts. */
- TEG_ISS |= 0x4E;
-}
+++ /dev/null
-/*
- * linux/arch/v850/kernel/time.c -- Arch-dependent timer functions
- *
- * Copyright (C) 1991, 1992, 1995, 2001, 2002 Linus Torvalds
- *
- * This file contains the v850-specific time handling details.
- * Most of the stuff is located in the machine specific files.
- *
- * 1997-09-10 Updated NTP code according to technical memorandum Jan '96
- * "A Kernel Model for Precision Timekeeping" by Dave Mills
- */
-
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/time.h>
-#include <linux/timex.h>
-#include <linux/profile.h>
-
-#include <asm/io.h>
-
-#include "mach.h"
-
-#define TICK_SIZE (tick_nsec / 1000)
-
-/*
- * timer_interrupt() needs to keep up the real-time clock,
- * as well as call the "do_timer()" routine every clocktick
- */
-static irqreturn_t timer_interrupt (int irq, void *dummy, struct pt_regs *regs)
-{
-#if 0
- /* last time the cmos clock got updated */
- static long last_rtc_update=0;
-#endif
-
- /* may need to kick the hardware timer */
- if (mach_tick)
- mach_tick ();
-
- do_timer (1);
-#ifndef CONFIG_SMP
- update_process_times(user_mode(regs));
-#endif
- profile_tick(CPU_PROFILING, regs);
-#if 0
- /*
- * If we have an externally synchronized Linux clock, then update
- * CMOS clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
- * called as close as possible to 500 ms before the new second starts.
- */
- if (ntp_synced() &&
- xtime.tv_sec > last_rtc_update + 660 &&
- (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
- (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
- if (set_rtc_mmss (xtime.tv_sec) == 0)
- last_rtc_update = xtime.tv_sec;
- else
- last_rtc_update = xtime.tv_sec - 600; /* do it again in 60 s */
- }
-#ifdef CONFIG_HEARTBEAT
- /* use power LED as a heartbeat instead -- much more useful
- for debugging -- based on the version for PReP by Cort */
- /* acts like an actual heart beat -- ie thump-thump-pause... */
- if (mach_heartbeat) {
- static unsigned cnt = 0, period = 0, dist = 0;
-
- if (cnt == 0 || cnt == dist)
- mach_heartbeat ( 1 );
- else if (cnt == 7 || cnt == dist+7)
- mach_heartbeat ( 0 );
-
- if (++cnt > period) {
- cnt = 0;
- /* The hyperbolic function below modifies the heartbeat period
- * length in dependency of the current (5min) load. It goes
- * through the points f(0)=126, f(1)=86, f(5)=51,
- * f(inf)->30. */
- period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30;
- dist = period / 4;
- }
- }
-#endif /* CONFIG_HEARTBEAT */
-#endif /* 0 */
-
- return IRQ_HANDLED;
-}
-
-static int timer_dev_id;
-static struct irqaction timer_irqaction = {
- .handler = timer_interrupt,
- .flags = IRQF_DISABLED,
- .mask = CPU_MASK_NONE,
- .name = "timer",
- .dev_id = &timer_dev_id,
-};
-
-void time_init (void)
-{
- mach_gettimeofday (&xtime);
- mach_sched_init (&timer_irqaction);
-}
+++ /dev/null
-#include <linux/module.h>
-#include <linux/linkage.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/user.h>
-#include <linux/elfcore.h>
-#include <linux/in6.h>
-#include <linux/interrupt.h>
-
-#include <asm/pgalloc.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/checksum.h>
-#include <asm/current.h>
-
-
-extern void *trap_table;
-EXPORT_SYMBOL (trap_table);
-
-/* platform dependent support */
-EXPORT_SYMBOL (kernel_thread);
-EXPORT_SYMBOL (__bug);
-
-/* Networking helper routines. */
-EXPORT_SYMBOL (csum_partial_copy_nocheck);
-EXPORT_SYMBOL (csum_partial_copy_from_user);
-EXPORT_SYMBOL (ip_compute_csum);
-EXPORT_SYMBOL (ip_fast_csum);
-
-/* string / mem functions */
-EXPORT_SYMBOL (memset);
-EXPORT_SYMBOL (memcpy);
-EXPORT_SYMBOL (memmove);
-
-/*
- * libgcc functions - functions that are used internally by the
- * compiler... (prototypes are not correct though, but that
- * doesn't really matter since they're not versioned).
- */
-extern void __ashldi3 (void);
-extern void __ashrdi3 (void);
-extern void __lshrdi3 (void);
-extern void __muldi3 (void);
-extern void __negdi2 (void);
-
-EXPORT_SYMBOL (__ashldi3);
-EXPORT_SYMBOL (__ashrdi3);
-EXPORT_SYMBOL (__lshrdi3);
-EXPORT_SYMBOL (__muldi3);
-EXPORT_SYMBOL (__negdi2);
+++ /dev/null
-/*
- * arch/v850/kernel/v850e2_cache.c -- Cache control for V850E2 cache
- * memories
- *
- * Copyright (C) 2003 NEC Electronics Corporation
- * Copyright (C) 2003 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/mm.h>
-
-#include <asm/v850e2_cache.h>
-
-/* Cache operations we can do. The encoding corresponds directly to the
- value we need to write into the COPR register. */
-enum cache_op {
- OP_SYNC_IF_DIRTY = V850E2_CACHE_COPR_CFC(0), /* 000 */
- OP_SYNC_IF_VALID = V850E2_CACHE_COPR_CFC(1), /* 001 */
- OP_SYNC_IF_VALID_AND_CLEAR = V850E2_CACHE_COPR_CFC(3), /* 011 */
- OP_WAY_CLEAR = V850E2_CACHE_COPR_CFC(4), /* 100 */
- OP_FILL = V850E2_CACHE_COPR_CFC(5), /* 101 */
- OP_CLEAR = V850E2_CACHE_COPR_CFC(6), /* 110 */
- OP_CREATE_DIRTY = V850E2_CACHE_COPR_CFC(7) /* 111 */
-};
-
-/* Which cache to use. This encoding also corresponds directly to the
- value we need to write into the COPR register. */
-enum cache {
- ICACHE = 0,
- DCACHE = V850E2_CACHE_COPR_LBSL
-};
-
-/* Returns ADDR rounded down to the beginning of its cache-line. */
-#define CACHE_LINE_ADDR(addr) \
- ((addr) & ~(V850E2_CACHE_LINE_SIZE - 1))
-/* Returns END_ADDR rounded up to the `limit' of its cache-line. */
-#define CACHE_LINE_END_ADDR(end_addr) \
- CACHE_LINE_ADDR(end_addr + (V850E2_CACHE_LINE_SIZE - 1))
-
-\f
-/* Low-level cache ops. */
-
-/* Apply cache-op OP to all entries in CACHE. */
-static inline void cache_op_all (enum cache_op op, enum cache cache)
-{
- int cmd = op | cache | V850E2_CACHE_COPR_WSLE | V850E2_CACHE_COPR_STRT;
-
- if (op != OP_WAY_CLEAR) {
- /* The WAY_CLEAR operation does the whole way, but other
- ops take begin-index and count params; we just indicate
- the entire cache. */
- V850E2_CACHE_CADL = 0;
- V850E2_CACHE_CADH = 0;
- V850E2_CACHE_CCNT = V850E2_CACHE_WAY_SIZE - 1;
- }
-
- V850E2_CACHE_COPR = cmd | V850E2_CACHE_COPR_WSL(0); /* way 0 */
- V850E2_CACHE_COPR = cmd | V850E2_CACHE_COPR_WSL(1); /* way 1 */
- V850E2_CACHE_COPR = cmd | V850E2_CACHE_COPR_WSL(2); /* way 2 */
- V850E2_CACHE_COPR = cmd | V850E2_CACHE_COPR_WSL(3); /* way 3 */
-}
-
-/* Apply cache-op OP to all entries in CACHE covering addresses ADDR
- through ADDR+LEN. */
-static inline void cache_op_range (enum cache_op op, u32 addr, u32 len,
- enum cache cache)
-{
- u32 start = CACHE_LINE_ADDR (addr);
- u32 end = CACHE_LINE_END_ADDR (addr + len);
- u32 num_lines = (end - start) >> V850E2_CACHE_LINE_SIZE_BITS;
-
- V850E2_CACHE_CADL = start & 0xFFFF;
- V850E2_CACHE_CADH = start >> 16;
- V850E2_CACHE_CCNT = num_lines - 1;
-
- V850E2_CACHE_COPR = op | cache | V850E2_CACHE_COPR_STRT;
-}
-
-\f
-/* High-level ops. */
-
-static void cache_exec_after_store_all (void)
-{
- cache_op_all (OP_SYNC_IF_DIRTY, DCACHE);
- cache_op_all (OP_WAY_CLEAR, ICACHE);
-}
-
-static void cache_exec_after_store_range (u32 start, u32 len)
-{
- cache_op_range (OP_SYNC_IF_DIRTY, start, len, DCACHE);
- cache_op_range (OP_CLEAR, start, len, ICACHE);
-}
-
-\f
-/* Exported functions. */
-
-void flush_icache (void)
-{
- cache_exec_after_store_all ();
-}
-
-void flush_icache_range (unsigned long start, unsigned long end)
-{
- cache_exec_after_store_range (start, end - start);
-}
-
-void flush_icache_page (struct vm_area_struct *vma, struct page *page)
-{
- cache_exec_after_store_range (page_to_virt (page), PAGE_SIZE);
-}
-
-void flush_icache_user_range (struct vm_area_struct *vma, struct page *page,
- unsigned long addr, int len)
-{
- cache_exec_after_store_range (addr, len);
-}
-
-void flush_cache_sigtramp (unsigned long addr)
-{
- /* For the exact size, see signal.c, but 16 bytes should be enough. */
- cache_exec_after_store_range (addr, 16);
-}
+++ /dev/null
-/*
- * arch/v850/kernel/v850e_cache.c -- Cache control for V850E cache memories
- *
- * Copyright (C) 2003 NEC Electronics Corporation
- * Copyright (C) 2003 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-/* This file implements cache control for the rather simple cache used on
- some V850E CPUs, specifically the NB85E/TEG CPU-core and the V850E/ME2
- CPU. V850E2 processors have their own (better) cache
- implementation. */
-
-#include <asm/entry.h>
-#include <asm/cacheflush.h>
-#include <asm/v850e_cache.h>
-
-#define WAIT_UNTIL_CLEAR(value) while (value) {}
-
-/* Set caching params via the BHC and DCC registers. */
-void v850e_cache_enable (u16 bhc, u16 icc, u16 dcc)
-{
- unsigned long *r0_ram = (unsigned long *)R0_RAM_ADDR;
- register u16 bhc_val asm ("r6") = bhc;
-
- /* Read the instruction cache control register (ICC) and confirm
- that bits 0 and 1 (TCLR0, TCLR1) are all cleared. */
- WAIT_UNTIL_CLEAR (V850E_CACHE_ICC & 0x3);
- V850E_CACHE_ICC = icc;
-
-#ifdef V850E_CACHE_DCC
- /* Configure data-cache. */
- V850E_CACHE_DCC = dcc;
-#endif /* V850E_CACHE_DCC */
-
- /* Configure caching for various memory regions by writing the BHC
- register. The documentation says that an instruction _cannot_
- enable/disable caching for the memory region in which the
- instruction itself exists; to work around this, we store
- appropriate instructions into the on-chip RAM area (which is never
- cached), and briefly jump there to do the work. */
-#ifdef V850E_CACHE_WRITE_IBS
- *r0_ram++ = 0xf0720760; /* st.h r0, 0xfffff072[r0] */
-#endif
- *r0_ram++ = 0xf06a3760; /* st.h r6, 0xfffff06a[r0] */
- *r0_ram = 0x5640006b; /* jmp [r11] */
-
- asm ("mov hilo(1f), r11; jmp [%1]; 1:;"
- :: "r" (bhc_val), "r" (R0_RAM_ADDR) : "r11");
-}
-
-static void clear_icache (void)
-{
- /* 1. Read the instruction cache control register (ICC) and confirm
- that bits 0 and 1 (TCLR0, TCLR1) are all cleared. */
- WAIT_UNTIL_CLEAR (V850E_CACHE_ICC & 0x3);
-
- /* 2. Read the ICC register and confirm that bit 12 (LOCK0) is
- cleared. Bit 13 of the ICC register is always cleared. */
- WAIT_UNTIL_CLEAR (V850E_CACHE_ICC & 0x1000);
-
- /* 3. Set the TCLR0 and TCLR1 bits of the ICC register as follows,
- when clearing way 0 and way 1 at the same time:
- (a) Set the TCLR0 and TCLR1 bits.
- (b) Read the TCLR0 and TCLR1 bits to confirm that these bits
- are cleared.
- (c) Perform (a) and (b) above again. */
- V850E_CACHE_ICC |= 0x3;
- WAIT_UNTIL_CLEAR (V850E_CACHE_ICC & 0x3);
-
-#ifdef V850E_CACHE_REPEAT_ICC_WRITE
- /* Do it again. */
- V850E_CACHE_ICC |= 0x3;
- WAIT_UNTIL_CLEAR (V850E_CACHE_ICC & 0x3);
-#endif
-}
-
-#ifdef V850E_CACHE_DCC
-/* Flush or clear (or both) the data cache, depending on the value of FLAGS;
- the procedure is the same for both, just the control bits used differ (and
- both may be performed simultaneously). */
-static void dcache_op (unsigned short flags)
-{
- /* 1. Read the data cache control register (DCC) and confirm that bits
- 0, 1, 4, and 5 (DC00, DC01, DC04, DC05) are all cleared. */
- WAIT_UNTIL_CLEAR (V850E_CACHE_DCC & 0x33);
-
- /* 2. Clear DCC register bit 12 (DC12), bit 13 (DC13), or both
- depending on the way for which tags are to be cleared. */
- V850E_CACHE_DCC &= ~0xC000;
-
- /* 3. Set DCC register bit 0 (DC00), bit 1 (DC01) or both depending on
- the way for which tags are to be cleared.
- ...
- Set DCC register bit 4 (DC04), bit 5 (DC05), or both depending
- on the way to be data flushed. */
- V850E_CACHE_DCC |= flags;
-
- /* 4. Read DCC register bit DC00, DC01 [DC04, DC05], or both depending
- on the way for which tags were cleared [flushed] and confirm
- that that bit is cleared. */
- WAIT_UNTIL_CLEAR (V850E_CACHE_DCC & flags);
-}
-#endif /* V850E_CACHE_DCC */
-
-/* Flushes the contents of the dcache to memory. */
-static inline void flush_dcache (void)
-{
-#ifdef V850E_CACHE_DCC
- /* We only need to do something if in write-back mode. */
- if (V850E_CACHE_DCC & 0x0400)
- dcache_op (0x30);
-#endif /* V850E_CACHE_DCC */
-}
-
-/* Flushes the contents of the dcache to memory, and then clears it. */
-static inline void clear_dcache (void)
-{
-#ifdef V850E_CACHE_DCC
- /* We only need to do something if the dcache is enabled. */
- if (V850E_CACHE_DCC & 0x0C00)
- dcache_op (0x33);
-#endif /* V850E_CACHE_DCC */
-}
-
-/* Clears the dcache without flushing to memory first. */
-static inline void clear_dcache_no_flush (void)
-{
-#ifdef V850E_CACHE_DCC
- /* We only need to do something if the dcache is enabled. */
- if (V850E_CACHE_DCC & 0x0C00)
- dcache_op (0x3);
-#endif /* V850E_CACHE_DCC */
-}
-
-static inline void cache_exec_after_store (void)
-{
- flush_dcache ();
- clear_icache ();
-}
-
-\f
-/* Exported functions. */
-
-void flush_icache (void)
-{
- cache_exec_after_store ();
-}
-
-void flush_icache_range (unsigned long start, unsigned long end)
-{
- cache_exec_after_store ();
-}
-
-void flush_icache_page (struct vm_area_struct *vma, struct page *page)
-{
- cache_exec_after_store ();
-}
-
-void flush_icache_user_range (struct vm_area_struct *vma, struct page *page,
- unsigned long adr, int len)
-{
- cache_exec_after_store ();
-}
-
-void flush_cache_sigtramp (unsigned long addr)
-{
- cache_exec_after_store ();
-}
+++ /dev/null
-/*
- * arch/v850/kernel/v850e_intc.c -- V850E interrupt controller (INTC)
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-
-#include <asm/v850e_intc.h>
-
-static void irq_nop (unsigned irq) { }
-
-static unsigned v850e_intc_irq_startup (unsigned irq)
-{
- v850e_intc_clear_pending_irq (irq);
- v850e_intc_enable_irq (irq);
- return 0;
-}
-
-static void v850e_intc_end_irq (unsigned irq)
-{
- unsigned long psw, temp;
-
- /* Clear the highest-level bit in the In-service priority register
- (ISPR), to allow this interrupt (or another of the same or
- lesser priority) to happen again.
-
- The `reti' instruction normally does this automatically when the
- PSW bits EP and NP are zero, but we can't always rely on reti
- being used consistently to return after an interrupt (another
- process can be scheduled, for instance, which can delay the
- associated reti for a long time, or this process may be being
- single-stepped, which uses the `dbret' instruction to return
- from the kernel).
-
- We also set the PSW EP bit, which prevents reti from also
- trying to modify the ISPR itself. */
-
- /* Get PSW and disable interrupts. */
- asm volatile ("stsr psw, %0; di" : "=r" (psw));
- /* We don't want to do anything for NMIs (they don't use the ISPR). */
- if (! (psw & 0xC0)) {
- /* Transition to `trap' state, so that an eventual real
- reti instruction won't modify the ISPR. */
- psw |= 0x40;
- /* Fake an interrupt return, which automatically clears the
- appropriate bit in the ISPR. */
- asm volatile ("mov hilo(1f), %0;"
- "ldsr %0, eipc; ldsr %1, eipsw;"
- "reti;"
- "1:"
- : "=&r" (temp) : "r" (psw));
- }
-}
-
-/* Initialize HW_IRQ_TYPES for INTC-controlled irqs described in array
- INITS (which is terminated by an entry with the name field == 0). */
-void __init v850e_intc_init_irq_types (struct v850e_intc_irq_init *inits,
- struct hw_interrupt_type *hw_irq_types)
-{
- struct v850e_intc_irq_init *init;
- for (init = inits; init->name; init++) {
- unsigned i;
- struct hw_interrupt_type *hwit = hw_irq_types++;
-
- hwit->typename = init->name;
-
- hwit->startup = v850e_intc_irq_startup;
- hwit->shutdown = v850e_intc_disable_irq;
- hwit->enable = v850e_intc_enable_irq;
- hwit->disable = v850e_intc_disable_irq;
- hwit->ack = irq_nop;
- hwit->end = v850e_intc_end_irq;
-
- /* Initialize kernel IRQ infrastructure for this interrupt. */
- init_irq_handlers(init->base, init->num, init->interval, hwit);
-
- /* Set the interrupt priorities. */
- for (i = 0; i < init->num; i++) {
- unsigned irq = init->base + i * init->interval;
-
- /* If the interrupt is currently enabled (all
- interrupts are initially disabled), then
- assume whoever enabled it has set things up
- properly, and avoid messing with it. */
- if (! v850e_intc_irq_enabled (irq))
- /* This write also (1) disables the
- interrupt, and (2) clears any pending
- interrupts. */
- V850E_INTC_IC (irq)
- = (V850E_INTC_IC_PR (init->priority)
- | V850E_INTC_IC_MK);
- }
- }
-}
+++ /dev/null
-/*
- * include/asm-v850/v850e_timer_d.c -- `Timer D' component often used
- * with V850E CPUs
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/kernel.h>
-
-#include <asm/v850e_utils.h>
-#include <asm/v850e_timer_d.h>
-
-/* Start interval timer TIMER (0-3). The timer will issue the
- corresponding INTCMD interrupt RATE times per second.
- This function does not enable the interrupt. */
-void v850e_timer_d_configure (unsigned timer, unsigned rate)
-{
- unsigned divlog2, count;
-
- /* Calculate params for timer. */
- if (! calc_counter_params (
- V850E_TIMER_D_BASE_FREQ, rate,
- V850E_TIMER_D_TMCD_CS_MIN, V850E_TIMER_D_TMCD_CS_MAX, 16,
- &divlog2, &count))
- printk (KERN_WARNING
- "Cannot find interval timer %d setting suitable"
- " for rate of %dHz.\n"
- "Using rate of %dHz instead.\n",
- timer, rate,
- (V850E_TIMER_D_BASE_FREQ >> divlog2) >> 16);
-
- /* Do the actual hardware timer initialization: */
-
- /* Enable timer. */
- V850E_TIMER_D_TMCD(timer) = V850E_TIMER_D_TMCD_CAE;
- /* Set clock divider. */
- V850E_TIMER_D_TMCD(timer)
- = V850E_TIMER_D_TMCD_CAE
- | V850E_TIMER_D_TMCD_CS(divlog2);
- /* Set timer compare register. */
- V850E_TIMER_D_CMD(timer) = count;
- /* Start counting. */
- V850E_TIMER_D_TMCD(timer)
- = V850E_TIMER_D_TMCD_CAE
- | V850E_TIMER_D_TMCD_CS(divlog2)
- | V850E_TIMER_D_TMCD_CE;
-}
+++ /dev/null
-/*
- * include/asm-v850/v850e_utils.h -- Utility functions associated with
- * V850E CPUs
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <asm/v850e_utils.h>
-
-/* Calculate counter clock-divider and count values to attain the
- desired frequency RATE from the base frequency BASE_FREQ. The
- counter is expected to have a clock-divider, which can divide the
- system cpu clock by a power of two value from MIN_DIVLOG2 to
- MAX_DIV_LOG2, and a word-size of COUNTER_SIZE bits (the counter
- counts up and resets whenever it's equal to the compare register,
- generating an interrupt or whatever when it does so). The returned
- values are: *DIVLOG2 -- log2 of the desired clock divider and *COUNT
- -- the counter compare value to use. Returns true if it was possible
- to find a reasonable value, otherwise false (and the other return
- values will be set to be as good as possible). */
-int calc_counter_params (unsigned long base_freq,
- unsigned long rate,
- unsigned min_divlog2, unsigned max_divlog2,
- unsigned counter_size,
- unsigned *divlog2, unsigned *count)
-{
- unsigned _divlog2;
- int ok = 0;
-
- /* Find the lowest clock divider setting that can represent RATE. */
- for (_divlog2 = min_divlog2; _divlog2 <= max_divlog2; _divlog2++) {
- /* Minimum interrupt rate possible using this divider. */
- unsigned min_int_rate
- = (base_freq >> _divlog2) >> counter_size;
-
- if (min_int_rate <= rate) {
- /* This setting is the highest resolution
- setting that's slow enough enough to attain
- RATE interrupts per second, so use it. */
- ok = 1;
- break;
- }
- }
-
- if (_divlog2 > max_divlog2)
- /* Can't find correct setting. */
- _divlog2 = max_divlog2;
-
- if (divlog2)
- *divlog2 = _divlog2;
- if (count)
- *count = ((base_freq >> _divlog2) + rate/2) / rate;
-
- return ok;
-}
+++ /dev/null
-/*
- * arch/v850/vmlinux.lds.S -- kernel linker script for v850 platforms
- *
- * Copyright (C) 2002,03,04,05 NEC Electronics Corporation
- * Copyright (C) 2002,03,04,05 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-
-#define VMLINUX_SYMBOL(_sym_) _##_sym_
-#include <asm-generic/vmlinux.lds.h>
-
-/* For most platforms, this will define useful things like RAM addr/size. */
-#include <asm/machdep.h>
-
-
-/* The following macros contain the usual definitions for various data areas.
- The prefix `RAMK_' is used to indicate macros suitable for kernels loaded
- into RAM, and similarly `ROMK_' for ROM-resident kernels. Note that all
- symbols are prefixed with an extra `_' for compatibility with the v850
- toolchain. */
-
-
-/* Interrupt vectors. */
-#define INTV_CONTENTS \
- . = ALIGN (0x10) ; \
- __intv_start = . ; \
- *(.intv.reset) /* Reset vector */ \
- . = __intv_start + 0x10 ; \
- *(.intv.common) /* Vectors common to all v850e proc */\
- . = __intv_start + 0x80 ; \
- *(.intv.mach) /* Machine-specific int. vectors. */ \
- __intv_end = . ;
-
-#define RODATA_CONTENTS \
- . = ALIGN (16) ; \
- *(.rodata) *(.rodata.*) \
- *(__vermagic) /* Kernel version magic */ \
- *(.rodata1) \
- /* PCI quirks */ \
- ___start_pci_fixups_early = . ; \
- *(.pci_fixup_early) \
- ___end_pci_fixups_early = . ; \
- ___start_pci_fixups_header = . ; \
- *(.pci_fixup_header) \
- ___end_pci_fixups_header = . ; \
- ___start_pci_fixups_final = . ; \
- *(.pci_fixup_final) \
- ___end_pci_fixups_final = . ; \
- ___start_pci_fixups_enable = . ; \
- *(.pci_fixup_enable) \
- ___end_pci_fixups_enable = . ; \
- /* Kernel symbol table: Normal symbols */ \
- ___start___ksymtab = .; \
- *(__ksymtab) \
- ___stop___ksymtab = .; \
- /* Kernel symbol table: GPL-only symbols */ \
- ___start___ksymtab_gpl = .; \
- *(__ksymtab_gpl) \
- ___stop___ksymtab_gpl = .; \
- /* Kernel symbol table: GPL-future symbols */ \
- ___start___ksymtab_gpl_future = .; \
- *(__ksymtab_gpl_future) \
- ___stop___ksymtab_gpl_future = .; \
- /* Kernel symbol table: strings */ \
- *(__ksymtab_strings) \
- /* Kernel symbol table: Normal symbols */ \
- ___start___kcrctab = .; \
- *(__kcrctab) \
- ___stop___kcrctab = .; \
- /* Kernel symbol table: GPL-only symbols */ \
- ___start___kcrctab_gpl = .; \
- *(__kcrctab_gpl) \
- ___stop___kcrctab_gpl = .; \
- /* Kernel symbol table: GPL-future symbols */ \
- ___start___kcrctab_gpl_future = .; \
- *(__kcrctab_gpl_future) \
- ___stop___kcrctab_gpl_future = .; \
- /* Built-in module parameters */ \
- . = ALIGN (4) ; \
- ___start___param = .; \
- *(__param) \
- ___stop___param = .;
-
-
-/* Kernel text segment, and some constant data areas. */
-#define TEXT_CONTENTS \
- _text = .; \
- __stext = . ; \
- TEXT_TEXT \
- SCHED_TEXT \
- *(.exit.text) /* 2.5 convention */ \
- *(.text.exit) /* 2.4 convention */ \
- *(.text.lock) \
- *(.exitcall.exit) \
- __real_etext = . ; /* There may be data after here. */ \
- RODATA_CONTENTS \
- . = ALIGN (4) ; \
- *(.call_table_data) \
- *(.call_table_text) \
- . = ALIGN (16) ; /* Exception table. */ \
- ___start___ex_table = . ; \
- *(__ex_table) \
- ___stop___ex_table = . ; \
- . = ALIGN (4) ; \
- __etext = . ;
-
-/* Kernel data segment. */
-#define DATA_CONTENTS \
- __sdata = . ; \
- DATA_DATA \
- EXIT_DATA /* 2.5 convention */ \
- *(.data.exit) /* 2.4 convention */ \
- . = ALIGN (16) ; \
- *(.data.cacheline_aligned) \
- . = ALIGN (0x2000) ; \
- *(.data.init_task) \
- . = ALIGN (0x2000) ; \
- __edata = . ;
-
-/* Kernel BSS segment. */
-#define BSS_CONTENTS \
- __sbss = . ; \
- *(.bss) \
- *(COMMON) \
- . = ALIGN (4) ; \
- __init_stack_end = . ; \
- __ebss = . ;
-
-/* `initcall' tables. */
-#define INITCALL_CONTENTS \
- . = ALIGN (16) ; \
- ___setup_start = . ; \
- *(.init.setup) /* 2.5 convention */ \
- *(.setup.init) /* 2.4 convention */ \
- ___setup_end = . ; \
- ___initcall_start = . ; \
- *(.initcall.init) \
- INITCALLS \
- . = ALIGN (4) ; \
- ___initcall_end = . ; \
- ___con_initcall_start = .; \
- *(.con_initcall.init) \
- ___con_initcall_end = .;
-
-/* Contents of `init' section for a kernel that's loaded into RAM. */
-#define RAMK_INIT_CONTENTS \
- RAMK_INIT_CONTENTS_NO_END \
- __init_end = . ;
-/* Same as RAMK_INIT_CONTENTS, but doesn't define the `__init_end' symbol. */
-#define RAMK_INIT_CONTENTS_NO_END \
- . = ALIGN (4096) ; \
- __init_start = . ; \
- __sinittext = .; \
- INIT_TEXT /* 2.5 convention */ \
- __einittext = .; \
- INIT_DATA \
- *(.text.init) /* 2.4 convention */ \
- *(.data.init) \
- INITCALL_CONTENTS \
- INITRAMFS_CONTENTS
-
-/* The contents of `init' section for a ROM-resident kernel which
- should go into RAM. */
-#define ROMK_INIT_RAM_CONTENTS \
- . = ALIGN (4096) ; \
- __init_start = . ; \
- INIT_DATA /* 2.5 convention */ \
- *(.data.init) /* 2.4 convention */ \
- __init_end = . ; \
- . = ALIGN (4096) ;
-
-/* The contents of `init' section for a ROM-resident kernel which
- should go into ROM. */
-#define ROMK_INIT_ROM_CONTENTS \
- _sinittext = .; \
- INIT_TEXT /* 2.5 convention */ \
- _einittext = .; \
- *(.text.init) /* 2.4 convention */ \
- INITCALL_CONTENTS \
- INITRAMFS_CONTENTS
-
-/* A root filesystem image, for kernels with an embedded root filesystem. */
-#define ROOT_FS_CONTENTS \
- __root_fs_image_start = . ; \
- *(.root) \
- __root_fs_image_end = . ;
-
-#ifdef CONFIG_BLK_DEV_INITRD
-/* The initramfs archive. */
-#define INITRAMFS_CONTENTS \
- . = ALIGN (4) ; \
- ___initramfs_start = . ; \
- *(.init.ramfs) \
- ___initramfs_end = . ;
-#endif
-
-/* Where the initial bootmap (bitmap for the boot-time memory allocator)
- should be place. */
-#define BOOTMAP_CONTENTS \
- . = ALIGN (4096) ; \
- __bootmap = . ; \
- . = . + 4096 ; /* enough for 128MB. */
-
-/* The contents of a `typical' kram area for a kernel in RAM. */
-#define RAMK_KRAM_CONTENTS \
- __kram_start = . ; \
- TEXT_CONTENTS \
- DATA_CONTENTS \
- BSS_CONTENTS \
- RAMK_INIT_CONTENTS \
- __kram_end = . ; \
- BOOTMAP_CONTENTS
-
-
-/* Define output sections normally used for a ROM-resident kernel.
- ROM and RAM should be appropriate memory areas to use for kernel
- ROM and RAM data. This assumes that ROM starts at 0 (and thus can
- hold the interrupt vectors). */
-#define ROMK_SECTIONS(ROM, RAM) \
- .rom : { \
- INTV_CONTENTS \
- TEXT_CONTENTS \
- ROMK_INIT_ROM_CONTENTS \
- ROOT_FS_CONTENTS \
- } > ROM \
- \
- __rom_copy_src_start = . ; \
- \
- .data : { \
- __kram_start = . ; \
- __rom_copy_dst_start = . ; \
- DATA_CONTENTS \
- ROMK_INIT_RAM_CONTENTS \
- __rom_copy_dst_end = . ; \
- } > RAM AT> ROM \
- \
- .bss ALIGN (4) : { \
- BSS_CONTENTS \
- __kram_end = . ; \
- BOOTMAP_CONTENTS \
- } > RAM
-
-
-/* The 32-bit variable `jiffies' is just the lower 32-bits of `jiffies_64'. */
-_jiffies = _jiffies_64 ;
-
-
-/* Include an appropriate platform-dependent linker-script (which
- usually should use the above macros to do most of the work). */
-
-#ifdef CONFIG_V850E_SIM
-# include "sim.ld"
-#endif
-
-#ifdef CONFIG_V850E2_SIM85E2
-# include "sim85e2.ld"
-#endif
-
-#ifdef CONFIG_V850E2_FPGA85E2C
-# include "fpga85e2c.ld"
-#endif
-
-#ifdef CONFIG_V850E2_ANNA
-# ifdef CONFIG_ROM_KERNEL
-# include "anna-rom.ld"
-# else
-# include "anna.ld"
-# endif
-#endif
-
-#ifdef CONFIG_V850E_AS85EP1
-# ifdef CONFIG_ROM_KERNEL
-# include "as85ep1-rom.ld"
-# else
-# include "as85ep1.ld"
-# endif
-#endif
-
-#ifdef CONFIG_RTE_CB_MA1
-# ifdef CONFIG_ROM_KERNEL
-# include "rte_ma1_cb-rom.ld"
-# else
-# include "rte_ma1_cb.ld"
-# endif
-#endif
-
-#ifdef CONFIG_RTE_CB_NB85E
-# ifdef CONFIG_ROM_KERNEL
-# include "rte_nb85e_cb-rom.ld"
-# elif defined(CONFIG_RTE_CB_MULTI)
-# include "rte_nb85e_cb-multi.ld"
-# else
-# include "rte_nb85e_cb.ld"
-# endif
-#endif
-
-#ifdef CONFIG_RTE_CB_ME2
-# include "rte_me2_cb.ld"
-#endif
-
+++ /dev/null
-#
-# arch/v850/lib/Makefile
-#
-
-lib-y = ashrdi3.o ashldi3.o lshrdi3.o muldi3.o negdi2.o \
- checksum.o memcpy.o memset.o
+++ /dev/null
-/* ashldi3.c extracted from gcc-2.95.2/libgcc2.c which is: */
-/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#define BITS_PER_UNIT 8
-
-typedef int SItype __attribute__ ((mode (SI)));
-typedef unsigned int USItype __attribute__ ((mode (SI)));
-typedef int DItype __attribute__ ((mode (DI)));
-typedef int word_type __attribute__ ((mode (__word__)));
-
-struct DIstruct {SItype high, low;};
-
-typedef union
-{
- struct DIstruct s;
- DItype ll;
-} DIunion;
-
-DItype
-__ashldi3 (DItype u, word_type b)
-{
- DIunion w;
- word_type bm;
- DIunion uu;
-
- if (b == 0)
- return u;
-
- uu.ll = u;
-
- bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
- if (bm <= 0)
- {
- w.s.low = 0;
- w.s.high = (USItype)uu.s.low << -bm;
- }
- else
- {
- USItype carries = (USItype)uu.s.low >> bm;
- w.s.low = (USItype)uu.s.low << b;
- w.s.high = ((USItype)uu.s.high << b) | carries;
- }
-
- return w.ll;
-}
+++ /dev/null
-/* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
-/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#define BITS_PER_UNIT 8
-
-typedef int SItype __attribute__ ((mode (SI)));
-typedef unsigned int USItype __attribute__ ((mode (SI)));
-typedef int DItype __attribute__ ((mode (DI)));
-typedef int word_type __attribute__ ((mode (__word__)));
-
-struct DIstruct {SItype high, low;};
-
-typedef union
-{
- struct DIstruct s;
- DItype ll;
-} DIunion;
-
-DItype
-__ashrdi3 (DItype u, word_type b)
-{
- DIunion w;
- word_type bm;
- DIunion uu;
-
- if (b == 0)
- return u;
-
- uu.ll = u;
-
- bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
- if (bm <= 0)
- {
- /* w.s.high = 1..1 or 0..0 */
- w.s.high = uu.s.high >> (sizeof (SItype) * BITS_PER_UNIT - 1);
- w.s.low = uu.s.high >> -bm;
- }
- else
- {
- USItype carries = (USItype)uu.s.high << bm;
- w.s.high = uu.s.high >> b;
- w.s.low = ((USItype)uu.s.low >> b) | carries;
- }
-
- return w.ll;
-}
+++ /dev/null
-/*
- * INET An implementation of the TCP/IP protocol suite for the LINUX
- * operating system. INET is implemented using the BSD Socket
- * interface as the means of communication with the user level.
- *
- * MIPS specific IP/TCP/UDP checksumming routines
- *
- * Authors: Ralf Baechle, <ralf@waldorf-gmbh.de>
- * Lots of code moved from tcp.c and ip.c; see those files
- * for more names.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * $Id: checksum.c,v 1.1 2002/09/28 14:58:40 gerg Exp $
- */
-#include <net/checksum.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <asm/byteorder.h>
-#include <asm/string.h>
-#include <asm/uaccess.h>
-
-static inline unsigned short from32to16 (unsigned long sum)
-{
- unsigned int result;
- /*
- %0 %1
- hsw %1, %0 H L L H
- add %1, %0 H L H+L+C H+L
- */
- asm ("hsw %1, %0; add %1, %0" : "=&r" (result) : "r" (sum));
- return result >> 16;
-}
-
-static inline unsigned int do_csum(const unsigned char * buff, int len)
-{
- int odd, count;
- unsigned int result = 0;
-
- if (len <= 0)
- goto out;
- odd = 1 & (unsigned long) buff;
- if (odd) {
- result = be16_to_cpu(*buff);
- len--;
- buff++;
- }
- count = len >> 1; /* nr of 16-bit words.. */
- if (count) {
- if (2 & (unsigned long) buff) {
- result += *(unsigned short *) buff;
- count--;
- len -= 2;
- buff += 2;
- }
- count >>= 1; /* nr of 32-bit words.. */
- if (count) {
- unsigned int carry = 0;
- do {
- unsigned int w = *(unsigned int *) buff;
- count--;
- buff += 4;
- result += carry;
- result += w;
- carry = (w > result);
- } while (count);
- result += carry;
- result = (result & 0xffff) + (result >> 16);
- }
- if (len & 2) {
- result += *(unsigned short *) buff;
- buff += 2;
- }
- }
- if (len & 1)
- result += le16_to_cpu(*buff);
- result = from32to16(result);
- if (odd)
- result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
-out:
- return result;
-}
-
-/*
- * This is a version of ip_compute_csum() optimized for IP headers,
- * which always checksum on 4 octet boundaries.
- */
-__sum16 ip_fast_csum(const void *iph, unsigned int ihl)
-{
- return (__force __sum16)~do_csum(iph,ihl*4);
-}
-
-/*
- * this routine is used for miscellaneous IP-like checksums, mainly
- * in icmp.c
- */
-__sum16 ip_compute_csum(const void *buff, int len)
-{
- return (__force __sum16)~do_csum(buff,len);
-}
-
-/*
- * computes a partial checksum, e.g. for TCP/UDP fragments
- */
-__wsum csum_partial(const void *buff, int len, __wsum sum)
-{
- unsigned int result = do_csum(buff, len);
-
- /* add in old sum, and carry.. */
- result += (__force u32)sum;
- if ((__force u32)sum > result)
- result += 1;
- return (__force __wsum)result;
-}
-
-EXPORT_SYMBOL(csum_partial);
-
-/*
- * copy while checksumming, otherwise like csum_partial
- */
-__wsum csum_partial_copy_nocheck(const void *src, void *dst,
- int len, __wsum sum)
-{
- /*
- * It's 2:30 am and I don't feel like doing it real ...
- * This is lots slower than the real thing (tm)
- */
- sum = csum_partial(src, len, sum);
- memcpy(dst, src, len);
-
- return sum;
-}
-
-/*
- * Copy from userspace and compute checksum. If we catch an exception
- * then zero the rest of the buffer.
- */
-__wsum csum_partial_copy_from_user (const void *src,
- void *dst,
- int len, __wsum sum,
- int *err_ptr)
-{
- int missing;
-
- missing = copy_from_user(dst, src, len);
- if (missing) {
- memset(dst + len - missing, 0, missing);
- *err_ptr = -EFAULT;
- }
-
- return csum_partial(dst, len, sum);
-}
+++ /dev/null
-/* lshrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
-/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#define BITS_PER_UNIT 8
-
-typedef int SItype __attribute__ ((mode (SI)));
-typedef unsigned int USItype __attribute__ ((mode (SI)));
-typedef int DItype __attribute__ ((mode (DI)));
-typedef int word_type __attribute__ ((mode (__word__)));
-
-struct DIstruct {SItype high, low;};
-
-typedef union
-{
- struct DIstruct s;
- DItype ll;
-} DIunion;
-
-DItype
-__lshrdi3 (DItype u, word_type b)
-{
- DIunion w;
- word_type bm;
- DIunion uu;
-
- if (b == 0)
- return u;
-
- uu.ll = u;
-
- bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
- if (bm <= 0)
- {
- w.s.high = 0;
- w.s.low = (USItype)uu.s.high >> -bm;
- }
- else
- {
- USItype carries = (USItype)uu.s.high << bm;
- w.s.high = (USItype)uu.s.high >> b;
- w.s.low = ((USItype)uu.s.low >> b) | carries;
- }
-
- return w.ll;
-}
+++ /dev/null
-/*
- * arch/v850/lib/memcpy.c -- Memory copying
- *
- * Copyright (C) 2001,02 NEC Corporation
- * Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/types.h>
-#include <asm/string.h>
-
-#define CHUNK_SIZE 32 /* bytes */
-#define CHUNK_ALIGNED(addr) (((unsigned long)addr & 0x3) == 0)
-
-/* Note that this macro uses 8 call-clobbered registers (not including
- R1), which are few enough so that the following functions don't need
- to spill anything to memory. It also uses R1, which is nominally
- reserved for the assembler, but here it should be OK. */
-#define COPY_CHUNK(src, dst) \
- asm ("mov %0, ep;" \
- "sld.w 0[ep], r1; sld.w 4[ep], r12;" \
- "sld.w 8[ep], r13; sld.w 12[ep], r14;" \
- "sld.w 16[ep], r15; sld.w 20[ep], r17;" \
- "sld.w 24[ep], r18; sld.w 28[ep], r19;" \
- "mov %1, ep;" \
- "sst.w r1, 0[ep]; sst.w r12, 4[ep];" \
- "sst.w r13, 8[ep]; sst.w r14, 12[ep];" \
- "sst.w r15, 16[ep]; sst.w r17, 20[ep];" \
- "sst.w r18, 24[ep]; sst.w r19, 28[ep]" \
- :: "r" (src), "r" (dst) \
- : "r1", "r12", "r13", "r14", "r15", \
- "r17", "r18", "r19", "ep", "memory");
-
-void *memcpy (void *dst, const void *src, __kernel_size_t size)
-{
- char *_dst = dst;
- const char *_src = src;
-
- if (size >= CHUNK_SIZE && CHUNK_ALIGNED(_src) && CHUNK_ALIGNED(_dst)) {
- /* Copy large blocks efficiently. */
- unsigned count;
- for (count = size / CHUNK_SIZE; count; count--) {
- COPY_CHUNK (_src, _dst);
- _src += CHUNK_SIZE;
- _dst += CHUNK_SIZE;
- }
- size %= CHUNK_SIZE;
- }
-
- if (size > 0)
- do
- *_dst++ = *_src++;
- while (--size);
-
- return dst;
-}
-
-void *memmove (void *dst, const void *src, __kernel_size_t size)
-{
- if ((unsigned long)dst < (unsigned long)src
- || (unsigned long)src + size < (unsigned long)dst)
- return memcpy (dst, src, size);
- else {
- char *_dst = dst + size;
- const char *_src = src + size;
-
- if (size >= CHUNK_SIZE
- && CHUNK_ALIGNED (_src) && CHUNK_ALIGNED (_dst))
- {
- /* Copy large blocks efficiently. */
- unsigned count;
- for (count = size / CHUNK_SIZE; count; count--) {
- _src -= CHUNK_SIZE;
- _dst -= CHUNK_SIZE;
- COPY_CHUNK (_src, _dst);
- }
- size %= CHUNK_SIZE;
- }
-
- if (size > 0)
- do
- *--_dst = *--_src;
- while (--size);
-
- return _dst;
- }
-}
+++ /dev/null
-/*
- * arch/v850/lib/memset.c -- Memory initialization
- *
- * Copyright (C) 2001,02,04 NEC Corporation
- * Copyright (C) 2001,02,04 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#include <linux/types.h>
-
-void *memset (void *dst, int val, __kernel_size_t count)
-{
- if (count) {
- register unsigned loop;
- register void *ptr asm ("ep") = dst;
-
- /* replicate VAL into a long. */
- val &= 0xff;
- val |= val << 8;
- val |= val << 16;
-
- /* copy initial unaligned bytes. */
- if ((long)ptr & 1) {
- *(char *)ptr = val;
- ptr = (void *)((char *)ptr + 1);
- count--;
- }
- if (count > 2 && ((long)ptr & 2)) {
- *(short *)ptr = val;
- ptr = (void *)((short *)ptr + 1);
- count -= 2;
- }
-
- /* 32-byte copying loop. */
- for (loop = count / 32; loop; loop--) {
- asm ("sst.w %0, 0[ep]; sst.w %0, 4[ep];"
- "sst.w %0, 8[ep]; sst.w %0, 12[ep];"
- "sst.w %0, 16[ep]; sst.w %0, 20[ep];"
- "sst.w %0, 24[ep]; sst.w %0, 28[ep]"
- :: "r" (val) : "memory");
- ptr += 32;
- }
- count %= 32;
-
- /* long copying loop. */
- for (loop = count / 4; loop; loop--) {
- *(long *)ptr = val;
- ptr = (void *)((long *)ptr + 1);
- }
- count %= 4;
-
- /* finish up with any trailing bytes. */
- if (count & 2) {
- *(short *)ptr = val;
- ptr = (void *)((short *)ptr + 1);
- }
- if (count & 1) {
- *(char *)ptr = val;
- }
- }
-
- return dst;
-}
+++ /dev/null
-/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
- gcc-2.7.2.3/longlong.h which is: */
-/* Copyright (C) 1989, 1992, 1993, 1994, 1995, 2001 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#define umul_ppmm(w1, w0, u, v) \
- __asm__ ("mulu %3, %0, %1" \
- : "=r" ((USItype)(w0)), \
- "=r" ((USItype)(w1)) \
- : "%0" ((USItype)(u)), \
- "r" ((USItype)(v)))
-
-#define __umulsidi3(u, v) \
- ({DIunion __w; \
- umul_ppmm (__w.s.high, __w.s.low, u, v); \
- __w.ll; })
-
-typedef int SItype __attribute__ ((mode (SI)));
-typedef unsigned int USItype __attribute__ ((mode (SI)));
-typedef int DItype __attribute__ ((mode (DI)));
-typedef int word_type __attribute__ ((mode (__word__)));
-
-struct DIstruct {SItype high, low;};
-
-typedef union
-{
- struct DIstruct s;
- DItype ll;
-} DIunion;
-
-DItype
-__muldi3 (DItype u, DItype v)
-{
- DIunion w;
- DIunion uu, vv;
-
- uu.ll = u,
- vv.ll = v;
-
- w.ll = __umulsidi3 (uu.s.low, vv.s.low);
- w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
- + (USItype) uu.s.high * (USItype) vv.s.low);
-
- return w.ll;
-}
+++ /dev/null
-/*
- * arch/v850/lib/negdi2.c -- 64-bit negation
- *
- * Copyright (C) 2001 NEC Corporation
- * Copyright (C) 2001 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-typedef int DItype __attribute__ ((mode (DI)));
-
-DItype __negdi2 (DItype x)
-{
- __asm__ __volatile__
- ("not r6, r10;"
- "add 1, r10;"
- "setf c, r6;"
- "not r7, r11;"
- "add r6, r11"
- ::: "r6", "r7", "r10", "r11");
-}
select HAVE_UNSTABLE_SCHED_CLOCK
select HAVE_IDE
select HAVE_OPROFILE
+ select HAVE_IOREMAP_PROT
select HAVE_KPROBES
select HAVE_KRETPROBES
select HAVE_DYNAMIC_FTRACE
.quad sys32_fallocate
.quad compat_sys_timerfd_settime /* 325 */
.quad compat_sys_timerfd_gettime
+ .quad compat_sys_signalfd4
+ .quad sys_eventfd2
+ .quad sys_epoll_create1
+ .quad sys_dup3 /* 330 */
+ .quad sys_pipe2
+ .quad sys_inotify_init1
ia32_syscall_end:
int retval;
int fds[2];
- retval = do_pipe(fds);
+ retval = do_pipe_flags(fds, 0);
if (retval)
goto out;
if (copy_to_user(fd, fds, sizeof(fds)))
acpi_realmode_flags |= 2;
if (strncmp(str, "s3_beep", 7) == 0)
acpi_realmode_flags |= 4;
+#ifdef CONFIG_HIBERNATION
+ if (strncmp(str, "s4_nohwsig", 10) == 0)
+ acpi_no_s4_hw_signature();
+#endif
if (strncmp(str, "old_ordering", 12) == 0)
acpi_old_suspend_ordering();
str = strchr(str, ',');
#include <linux/time.h>
#include <linux/sched.h>
#include <linux/pm.h>
-#include <linux/pm_legacy.h>
#include <linux/capability.h>
#include <linux/device.h>
#include <linux/kernel.h>
#define RTC_NUM_INTS 1
static unsigned long hpet_rtc_flags;
-static unsigned long hpet_prev_update_sec;
+static int hpet_prev_update_sec;
static struct rtc_time hpet_alarm_time;
static unsigned long hpet_pie_count;
static unsigned long hpet_t1_cmp;
hpet_rtc_flags |= bit_mask;
+ if ((bit_mask & RTC_UIE) && !(oldbits & RTC_UIE))
+ hpet_prev_update_sec = -1;
+
if (!oldbits)
hpet_rtc_timer_init();
if (hpet_rtc_flags & RTC_PIE)
hpet_pie_count += lost_ints;
if (printk_ratelimit())
- printk(KERN_WARNING "rtc: lost %d interrupts\n",
+ printk(KERN_WARNING "hpet1: lost %d rtc interrupts\n",
lost_ints);
}
}
if (hpet_rtc_flags & RTC_UIE &&
curr_time.tm_sec != hpet_prev_update_sec) {
- rtc_int_flag = RTC_UF;
+ if (hpet_prev_update_sec >= 0)
+ rtc_int_flag = RTC_UF;
hpet_prev_update_sec = curr_time.tm_sec;
}
#include <linux/fs.h>
#include <linux/string.h>
#include <linux/kernel.h>
+#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/bug.h>
.long sys_fallocate
.long sys_timerfd_settime /* 325 */
.long sys_timerfd_gettime
+ .long sys_signalfd4
+ .long sys_eventfd2
+ .long sys_epoll_create1
+ .long sys_dup3 /* 330 */
+ .long sys_pipe2
+ .long sys_inotify_init1
struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
EXPORT_SYMBOL(node_data);
-static bootmem_data_t node0_bdata;
/*
* numa interface - we expect the numa architecture specific code to have
for_each_online_node(nid)
memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
- NODE_DATA(0)->bdata = &node0_bdata;
+ NODE_DATA(0)->bdata = &bootmem_node_data[0];
setup_bootmem_allocator();
}
return 1;
}
-pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr)
+pte_t *huge_pte_alloc(struct mm_struct *mm,
+ unsigned long addr, unsigned long sz)
{
pgd_t *pgd;
pud_t *pud;
pgd = pgd_offset(mm, addr);
pud = pud_alloc(mm, pgd, addr);
if (pud) {
- if (pud_none(*pud))
- huge_pmd_share(mm, addr, pud);
- pte = (pte_t *) pmd_alloc(mm, pud, addr);
+ if (sz == PUD_SIZE) {
+ pte = (pte_t *)pud;
+ } else {
+ BUG_ON(sz != PMD_SIZE);
+ if (pud_none(*pud))
+ huge_pmd_share(mm, addr, pud);
+ pte = (pte_t *) pmd_alloc(mm, pud, addr);
+ }
}
BUG_ON(pte && !pte_none(*pte) && !pte_huge(*pte));
pgd = pgd_offset(mm, addr);
if (pgd_present(*pgd)) {
pud = pud_offset(pgd, addr);
- if (pud_present(*pud))
+ if (pud_present(*pud)) {
+ if (pud_large(*pud))
+ return (pte_t *)pud;
pmd = pmd_offset(pud, addr);
+ }
}
return (pte_t *) pmd;
}
return 0;
}
+int pud_huge(pud_t pud)
+{
+ return 0;
+}
+
struct page *
follow_huge_pmd(struct mm_struct *mm, unsigned long address,
pmd_t *pmd, int write)
return !!(pmd_val(pmd) & _PAGE_PSE);
}
+int pud_huge(pud_t pud)
+{
+ return !!(pud_val(pud) & _PAGE_PSE);
+}
+
struct page *
follow_huge_pmd(struct mm_struct *mm, unsigned long address,
pmd_t *pmd, int write)
page = pte_page(*(pte_t *)pmd);
if (page)
- page += ((address & ~HPAGE_MASK) >> PAGE_SHIFT);
+ page += ((address & ~PMD_MASK) >> PAGE_SHIFT);
+ return page;
+}
+
+struct page *
+follow_huge_pud(struct mm_struct *mm, unsigned long address,
+ pud_t *pud, int write)
+{
+ struct page *page;
+
+ page = pte_page(*(pte_t *)pud);
+ if (page)
+ page += ((address & ~PUD_MASK) >> PAGE_SHIFT);
return page;
}
+
#endif
/* x86_64 also uses this file */
unsigned long addr, unsigned long len,
unsigned long pgoff, unsigned long flags)
{
+ struct hstate *h = hstate_file(file);
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
unsigned long start_addr;
}
full_search:
- addr = ALIGN(start_addr, HPAGE_SIZE);
+ addr = ALIGN(start_addr, huge_page_size(h));
for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
/* At this point: (!vma || addr < vma->vm_end). */
}
if (addr + mm->cached_hole_size < vma->vm_start)
mm->cached_hole_size = vma->vm_start - addr;
- addr = ALIGN(vma->vm_end, HPAGE_SIZE);
+ addr = ALIGN(vma->vm_end, huge_page_size(h));
}
}
unsigned long addr0, unsigned long len,
unsigned long pgoff, unsigned long flags)
{
+ struct hstate *h = hstate_file(file);
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma, *prev_vma;
unsigned long base = mm->mmap_base, addr = addr0;
goto fail;
/* either no address requested or cant fit in requested address hole */
- addr = (mm->free_area_cache - len) & HPAGE_MASK;
+ addr = (mm->free_area_cache - len) & huge_page_mask(h);
do {
/*
* Lookup failure means no vma is above this address,
largest_hole = vma->vm_start - addr;
/* try just below the current vma->vm_start */
- addr = (vma->vm_start - len) & HPAGE_MASK;
+ addr = (vma->vm_start - len) & huge_page_mask(h);
} while (len <= vma->vm_start);
fail:
hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
unsigned long len, unsigned long pgoff, unsigned long flags)
{
+ struct hstate *h = hstate_file(file);
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
- if (len & ~HPAGE_MASK)
+ if (len & ~huge_page_mask(h))
return -EINVAL;
if (len > TASK_SIZE)
return -ENOMEM;
if (flags & MAP_FIXED) {
- if (prepare_hugepage_range(addr, len))
+ if (prepare_hugepage_range(file, addr, len))
return -EINVAL;
return addr;
}
if (addr) {
- addr = ALIGN(addr, HPAGE_SIZE);
+ addr = ALIGN(addr, huge_page_size(h));
vma = find_vma(mm, addr);
if (TASK_SIZE - len >= addr &&
(!vma || addr + len <= vma->vm_start))
#endif /*HAVE_ARCH_HUGETLB_UNMAPPED_AREA*/
+#ifdef CONFIG_X86_64
+static __init int setup_hugepagesz(char *opt)
+{
+ unsigned long ps = memparse(opt, &opt);
+ if (ps == PMD_SIZE) {
+ hugetlb_add_hstate(PMD_SHIFT - PAGE_SHIFT);
+ } else if (ps == PUD_SIZE && cpu_has_gbpages) {
+ hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT);
+ } else {
+ printk(KERN_ERR "hugepagesz: Unsupported page size %lu M\n",
+ ps >> 20);
+ return 0;
+ }
+ return 1;
+}
+__setup("hugepagesz=", setup_hugepagesz);
+#endif
return (void __iomem *)ret;
}
+void __iomem *ioremap_prot(resource_size_t phys_addr, unsigned long size,
+ unsigned long prot_val)
+{
+ return __ioremap_caller(phys_addr, size, (prot_val & _PAGE_CACHE_MASK),
+ __builtin_return_address(0));
+}
+EXPORT_SYMBOL(ioremap_prot);
+
/**
* iounmap - Free a IO remapping
* @addr: virtual address from ioremap_*
struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
EXPORT_SYMBOL(node_data);
-static bootmem_data_t plat_node_bdata[MAX_NUMNODES];
-
struct memnode memnode;
s16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
nodedata_phys + pgdat_size - 1);
memset(NODE_DATA(nodeid), 0, sizeof(pg_data_t));
- NODE_DATA(nodeid)->bdata = &plat_node_bdata[nodeid];
+ NODE_DATA(nodeid)->bdata = &bootmem_node_data[nodeid];
NODE_DATA(nodeid)->node_start_pfn = start_pfn;
NODE_DATA(nodeid)->node_spanned_pages = last_pfn - start_pfn;
static struct vm_operations_struct pci_mmap_ops = {
.open = pci_track_mmap_page_range,
.close = pci_unmap_page_range,
+ .access = generic_access_phys,
};
int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
#include <linux/errno.h>
#include <linux/init.h>
+#include <linux/mm.h>
#include <linux/proc_fs.h>
#include <linux/screen_info.h>
#include <linux/bootmem.h>
int fd[2];
int error;
- error = do_pipe(fd);
+ error = do_pipe_flags(fd, 0);
if (!error) {
if (copy_to_user(userfds, fd, 2 * sizeof(int)))
error = -EFAULT;
.end = acpi_pm_end,
.recover = acpi_pm_finish,
};
+
+static int __init init_old_suspend_ordering(const struct dmi_system_id *d)
+{
+ old_suspend_ordering = true;
+ return 0;
+}
+
+static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
+ {
+ .callback = init_old_suspend_ordering,
+ .ident = "Abit KN9 (nForce4 variant)",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "http://www.abit.com.tw/"),
+ DMI_MATCH(DMI_BOARD_NAME, "KN9 Series(NF-CK804)"),
+ },
+ },
+ {},
+};
#endif /* CONFIG_SUSPEND */
#ifdef CONFIG_HIBERNATION
+static unsigned long s4_hardware_signature;
+static struct acpi_table_facs *facs;
+static bool nosigcheck;
+
+void __init acpi_no_s4_hw_signature(void)
+{
+ nosigcheck = true;
+}
+
static int acpi_hibernation_begin(void)
{
acpi_target_sleep_state = ACPI_STATE_S4;
acpi_enable();
/* Reprogram control registers and execute _BFS */
acpi_leave_sleep_state_prep(ACPI_STATE_S4);
+ /* Check the hardware signature */
+ if (facs && s4_hardware_signature != facs->hardware_signature) {
+ printk(KERN_EMERG "ACPI: Hardware changed while hibernated, "
+ "cannot resume!\n");
+ panic("ACPI S4 hardware signature mismatch");
+ }
}
static void acpi_pm_enable_gpes(void)
u8 type_a, type_b;
#ifdef CONFIG_SUSPEND
int i = 0;
+
+ dmi_check_system(acpisleep_dmi_table);
#endif
if (acpi_disabled)
&acpi_hibernation_ops_old : &acpi_hibernation_ops);
sleep_states[ACPI_STATE_S4] = 1;
printk(" S4");
+ if (!nosigcheck) {
+ acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS,
+ (struct acpi_table_header **)&facs);
+ if (facs)
+ s4_hardware_signature =
+ facs->hardware_signature;
+ }
}
#endif
status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/init.h>
+#include <linux/string.h>
#include <asm/uaccess.h>
#include <acpi/acpi_drivers.h>
const struct firmware *firmware;
struct device *device;
struct fw_header *fw_header;
- u32 *fw_data, fw_size;
+ const __le32 *fw_data;
+ u32 fw_size;
u32 __iomem *load_addr;
char buf[48];
int err = -ENODEV;
return err;
}
- fw_data = (u32 *) firmware->data;
+ fw_data = (__le32 *) firmware->data;
fw_size = firmware->size / sizeof(u32);
fw_header = (struct fw_header *) firmware->data;
load_addr = fore200e->virt_base + le32_to_cpu(fw_header->load_offset);
{}
};
-#ifdef MODULE_LICENSE
MODULE_LICENSE("GPL");
+#ifdef CONFIG_PCI
+#ifdef __LITTLE_ENDIAN__
+MODULE_FIRMWARE("pca200e.bin");
+#else
+MODULE_FIRMWARE("pca200e_ecd.bin2");
+#endif
+#endif /* CONFIG_PCI */
+#ifdef CONFIG_SBUS
+MODULE_FIRMWARE("sba200e_ecd.bin2");
#endif
"ks0108 is not initialized\n");
goto none;
}
+ BUILD_BUG_ON(PAGE_SIZE < CFAG12864B_SIZE);
- if (PAGE_SIZE < CFAG12864B_SIZE) {
- printk(KERN_ERR CFAG12864B_NAME ": ERROR: "
- "page size (%i) < cfag12864b size (%i)\n",
- (unsigned int)PAGE_SIZE, CFAG12864B_SIZE);
- ret = -ENOMEM;
- goto none;
- }
-
- cfag12864b_buffer = (unsigned char *) __get_free_page(GFP_KERNEL);
+ cfag12864b_buffer = (unsigned char *) get_zeroed_page(GFP_KERNEL);
if (cfag12864b_buffer == NULL) {
printk(KERN_ERR CFAG12864B_NAME ": ERROR: "
"can't get a free page\n");
if (cfag12864b_workqueue == NULL)
goto cachealloced;
- memset(cfag12864b_buffer, 0, CFAG12864B_SIZE);
-
cfag12864b_clear();
cfag12864b_on();
return sprintf(buf, "%08lx\n", mem->phys_index);
}
+/*
+ * Show whether the section of memory is likely to be hot-removable
+ */
+static ssize_t show_mem_removable(struct sys_device *dev, char *buf)
+{
+ unsigned long start_pfn;
+ int ret;
+ struct memory_block *mem =
+ container_of(dev, struct memory_block, sysdev);
+
+ start_pfn = section_nr_to_pfn(mem->phys_index);
+ ret = is_mem_section_removable(start_pfn, PAGES_PER_SECTION);
+ return sprintf(buf, "%d\n", ret);
+}
+
/*
* online, offline, going offline, etc.
*/
static SYSDEV_ATTR(phys_index, 0444, show_mem_phys_index, NULL);
static SYSDEV_ATTR(state, 0644, show_mem_state, store_mem_state);
static SYSDEV_ATTR(phys_device, 0444, show_phys_device, NULL);
+static SYSDEV_ATTR(removable, 0444, show_mem_removable, NULL);
#define mem_create_simple_file(mem, attr_name) \
sysdev_create_file(&mem->sysdev, &attr_##attr_name)
ret = mem_create_simple_file(mem, state);
if (!ret)
ret = mem_create_simple_file(mem, phys_device);
+ if (!ret)
+ ret = mem_create_simple_file(mem, removable);
return ret;
}
mem_remove_simple_file(mem, phys_index);
mem_remove_simple_file(mem, state);
mem_remove_simple_file(mem, phys_device);
+ mem_remove_simple_file(mem, removable);
unregister_memory(mem, section);
return 0;
endif # RTC_LIB
-config COBALT_LCD
- bool "Support for Cobalt LCD"
- depends on MIPS_COBALT
- help
- This option enables support for the LCD display and buttons found
- on Cobalt systems through a misc device.
-
config DTLK
tristate "Double Talk PC internal speech card support"
depends on ISA
obj-$(CONFIG_I8K) += i8k.o
obj-$(CONFIG_DS1620) += ds1620.o
obj-$(CONFIG_HW_RANDOM) += hw_random/
-obj-$(CONFIG_COBALT_LCD) += lcd.o
obj-$(CONFIG_PPDEV) += ppdev.o
obj-$(CONFIG_NWBUTTON) += nwbutton.o
obj-$(CONFIG_NWFLASH) += nwflash.o
+++ /dev/null
-/*
- * LCD, LED and Button interface for Cobalt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1996, 1997 by Andrew Bose
- *
- * Linux kernel version history:
- * March 2001: Ported from 2.0.34 by Liam Davies
- *
- */
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/miscdevice.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/fcntl.h>
-#include <linux/mc146818rtc.h>
-#include <linux/netdevice.h>
-#include <linux/sched.h>
-#include <linux/smp_lock.h>
-#include <linux/delay.h>
-
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#include "lcd.h"
-
-static int lcd_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg);
-
-static unsigned int lcd_present = 1;
-
-/* used in arch/mips/cobalt/reset.c */
-int led_state = 0;
-
-#if defined(CONFIG_TULIP) && 0
-
-#define MAX_INTERFACES 8
-static linkcheck_func_t linkcheck_callbacks[MAX_INTERFACES];
-static void *linkcheck_cookies[MAX_INTERFACES];
-
-int lcd_register_linkcheck_func(int iface_num, void *func, void *cookie)
-{
- if (iface_num < 0 ||
- iface_num >= MAX_INTERFACES ||
- linkcheck_callbacks[iface_num] != NULL)
- return -1;
- linkcheck_callbacks[iface_num] = (linkcheck_func_t) func;
- linkcheck_cookies[iface_num] = cookie;
- return 0;
-}
-#endif
-
-static int lcd_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct lcd_display button_display;
- unsigned long address, a;
-
- switch (cmd) {
- case LCD_On:
- udelay(150);
- BusyCheck();
- LCDWriteInst(0x0F);
- break;
-
- case LCD_Off:
- udelay(150);
- BusyCheck();
- LCDWriteInst(0x08);
- break;
-
- case LCD_Reset:
- udelay(150);
- LCDWriteInst(0x3F);
- udelay(150);
- LCDWriteInst(0x3F);
- udelay(150);
- LCDWriteInst(0x3F);
- udelay(150);
- LCDWriteInst(0x3F);
- udelay(150);
- LCDWriteInst(0x01);
- udelay(150);
- LCDWriteInst(0x06);
- break;
-
- case LCD_Clear:
- udelay(150);
- BusyCheck();
- LCDWriteInst(0x01);
- break;
-
- case LCD_Cursor_Left:
- udelay(150);
- BusyCheck();
- LCDWriteInst(0x10);
- break;
-
- case LCD_Cursor_Right:
- udelay(150);
- BusyCheck();
- LCDWriteInst(0x14);
- break;
-
- case LCD_Cursor_Off:
- udelay(150);
- BusyCheck();
- LCDWriteInst(0x0C);
- break;
-
- case LCD_Cursor_On:
- udelay(150);
- BusyCheck();
- LCDWriteInst(0x0F);
- break;
-
- case LCD_Blink_Off:
- udelay(150);
- BusyCheck();
- LCDWriteInst(0x0E);
- break;
-
- case LCD_Get_Cursor_Pos:{
- struct lcd_display display;
-
- udelay(150);
- BusyCheck();
- display.cursor_address = (LCDReadInst);
- display.cursor_address =
- (display.cursor_address & 0x07F);
- if (copy_to_user
- ((struct lcd_display *) arg, &display,
- sizeof(struct lcd_display)))
- return -EFAULT;
-
- break;
- }
-
-
- case LCD_Set_Cursor_Pos:{
- struct lcd_display display;
-
- if (copy_from_user
- (&display, (struct lcd_display *) arg,
- sizeof(struct lcd_display)))
- return -EFAULT;
-
- a = (display.cursor_address | kLCD_Addr);
-
- udelay(150);
- BusyCheck();
- LCDWriteInst(a);
-
- break;
- }
-
- case LCD_Get_Cursor:{
- struct lcd_display display;
-
- udelay(150);
- BusyCheck();
- display.character = LCDReadData;
-
- if (copy_to_user
- ((struct lcd_display *) arg, &display,
- sizeof(struct lcd_display)))
- return -EFAULT;
- udelay(150);
- BusyCheck();
- LCDWriteInst(0x10);
-
- break;
- }
-
- case LCD_Set_Cursor:{
- struct lcd_display display;
-
- if (copy_from_user
- (&display, (struct lcd_display *) arg,
- sizeof(struct lcd_display)))
- return -EFAULT;
-
- udelay(150);
- BusyCheck();
- LCDWriteData(display.character);
- udelay(150);
- BusyCheck();
- LCDWriteInst(0x10);
-
- break;
- }
-
-
- case LCD_Disp_Left:
- udelay(150);
- BusyCheck();
- LCDWriteInst(0x18);
- break;
-
- case LCD_Disp_Right:
- udelay(150);
- BusyCheck();
- LCDWriteInst(0x1C);
- break;
-
- case LCD_Home:
- udelay(150);
- BusyCheck();
- LCDWriteInst(0x02);
- break;
-
- case LCD_Write:{
- struct lcd_display display;
- unsigned int index;
-
-
- if (copy_from_user
- (&display, (struct lcd_display *) arg,
- sizeof(struct lcd_display)))
- return -EFAULT;
-
- udelay(150);
- BusyCheck();
- LCDWriteInst(0x80);
- udelay(150);
- BusyCheck();
-
- for (index = 0; index < (display.size1); index++) {
- udelay(150);
- BusyCheck();
- LCDWriteData(display.line1[index]);
- BusyCheck();
- }
-
- udelay(150);
- BusyCheck();
- LCDWriteInst(0xC0);
- udelay(150);
- BusyCheck();
- for (index = 0; index < (display.size2); index++) {
- udelay(150);
- BusyCheck();
- LCDWriteData(display.line2[index]);
- }
-
- break;
- }
-
- case LCD_Read:{
- struct lcd_display display;
-
- BusyCheck();
- for (address = kDD_R00; address <= kDD_R01;
- address++) {
- a = (address | kLCD_Addr);
-
- udelay(150);
- BusyCheck();
- LCDWriteInst(a);
- udelay(150);
- BusyCheck();
- display.line1[address] = LCDReadData;
- }
-
- display.line1[0x27] = '\0';
-
- for (address = kDD_R10; address <= kDD_R11;
- address++) {
- a = (address | kLCD_Addr);
-
- udelay(150);
- BusyCheck();
- LCDWriteInst(a);
-
- udelay(150);
- BusyCheck();
- display.line2[address - 0x40] =
- LCDReadData;
- }
-
- display.line2[0x27] = '\0';
-
- if (copy_to_user
- ((struct lcd_display *) arg, &display,
- sizeof(struct lcd_display)))
- return -EFAULT;
- break;
- }
-
-// set all GPIO leds to led_display.leds
-
- case LED_Set:{
- struct lcd_display led_display;
-
-
- if (copy_from_user
- (&led_display, (struct lcd_display *) arg,
- sizeof(struct lcd_display)))
- return -EFAULT;
-
- led_state = led_display.leds;
- LEDSet(led_state);
-
- break;
- }
-
-
-// set only bit led_display.leds
-
- case LED_Bit_Set:{
- unsigned int i;
- int bit = 1;
- struct lcd_display led_display;
-
-
- if (copy_from_user
- (&led_display, (struct lcd_display *) arg,
- sizeof(struct lcd_display)))
- return -EFAULT;
-
- for (i = 0; i < (int) led_display.leds; i++) {
- bit = 2 * bit;
- }
-
- led_state = led_state | bit;
- LEDSet(led_state);
- break;
- }
-
-// clear only bit led_display.leds
-
- case LED_Bit_Clear:{
- unsigned int i;
- int bit = 1;
- struct lcd_display led_display;
-
-
- if (copy_from_user
- (&led_display, (struct lcd_display *) arg,
- sizeof(struct lcd_display)))
- return -EFAULT;
-
- for (i = 0; i < (int) led_display.leds; i++) {
- bit = 2 * bit;
- }
-
- led_state = led_state & ~bit;
- LEDSet(led_state);
- break;
- }
-
-
- case BUTTON_Read:{
- button_display.buttons = GPIRead;
- if (copy_to_user
- ((struct lcd_display *) arg, &button_display,
- sizeof(struct lcd_display)))
- return -EFAULT;
- break;
- }
-
- case LINK_Check:{
- button_display.buttons =
- *((volatile unsigned long *) (0xB0100060));
- if (copy_to_user
- ((struct lcd_display *) arg, &button_display,
- sizeof(struct lcd_display)))
- return -EFAULT;
- break;
- }
-
- case LINK_Check_2:{
- int iface_num;
-
- /* panel-utils should pass in the desired interface status is wanted for
- * in "buttons" of the structure. We will set this to non-zero if the
- * link is in fact up for the requested interface. --DaveM
- */
- if (copy_from_user
- (&button_display, (struct lcd_display *) arg,
- sizeof(button_display)))
- return -EFAULT;
- iface_num = button_display.buttons;
-#if defined(CONFIG_TULIP) && 0
- if (iface_num >= 0 &&
- iface_num < MAX_INTERFACES &&
- linkcheck_callbacks[iface_num] != NULL) {
- button_display.buttons =
- linkcheck_callbacks[iface_num]
- (linkcheck_cookies[iface_num]);
- } else
-#endif
- button_display.buttons = 0;
-
- if (__copy_to_user
- ((struct lcd_display *) arg, &button_display,
- sizeof(struct lcd_display)))
- return -EFAULT;
- break;
- }
-
- default:
- return -EINVAL;
-
- }
-
- return 0;
-
-}
-
-static int lcd_open(struct inode *inode, struct file *file)
-{
- cycle_kernel_lock();
-
- if (!lcd_present)
- return -ENXIO;
- else
- return 0;
-}
-
-/* Only RESET or NEXT counts as button pressed */
-
-static inline int button_pressed(void)
-{
- unsigned long buttons = GPIRead;
-
- if ((buttons == BUTTON_Next) || (buttons == BUTTON_Next_B)
- || (buttons == BUTTON_Reset_B))
- return buttons;
- return 0;
-}
-
-/* LED daemon sits on this and we wake him up once a key is pressed. */
-
-static int lcd_waiters = 0;
-
-static ssize_t lcd_read(struct file *file, char *buf,
- size_t count, loff_t *ofs)
-{
- long buttons_now;
-
- if (lcd_waiters > 0)
- return -EINVAL;
-
- lcd_waiters++;
- while (((buttons_now = (long) button_pressed()) == 0) &&
- !(signal_pending(current))) {
- msleep_interruptible(2000);
- }
- lcd_waiters--;
-
- if (signal_pending(current))
- return -ERESTARTSYS;
- return buttons_now;
-}
-
-/*
- * The various file operations we support.
- */
-
-static const struct file_operations lcd_fops = {
- .read = lcd_read,
- .ioctl = lcd_ioctl,
- .open = lcd_open,
-};
-
-static struct miscdevice lcd_dev = {
- MISC_DYNAMIC_MINOR,
- "lcd",
- &lcd_fops
-};
-
-static int lcd_init(void)
-{
- int ret;
- unsigned long data;
-
- pr_info("%s\n", LCD_DRIVER);
- ret = misc_register(&lcd_dev);
- if (ret) {
- printk(KERN_WARNING LCD "Unable to register misc device.\n");
- return ret;
- }
-
- /* Check region? Naaah! Just snarf it up. */
-/* request_region(RTC_PORT(0), RTC_IO_EXTENT, "lcd");*/
-
- udelay(150);
- data = LCDReadData;
- if ((data & 0x000000FF) == (0x00)) {
- lcd_present = 0;
- pr_info(LCD "LCD Not Present\n");
- } else {
- lcd_present = 1;
- WRITE_GAL(kGal_DevBank2PReg, kGal_DevBank2Cfg);
- WRITE_GAL(kGal_DevBank3PReg, kGal_DevBank3Cfg);
- }
-
- return 0;
-}
-
-static void __exit lcd_exit(void)
-{
- misc_deregister(&lcd_dev);
-}
-
-module_init(lcd_init);
-module_exit(lcd_exit);
-
-MODULE_AUTHOR("Andrew Bose");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * LED, LCD and Button panel driver for Cobalt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1996, 1997 by Andrew Bose
- *
- * Linux kernel version history:
- * March 2001: Ported from 2.0.34 by Liam Davies
- *
- */
-
-// function headers
-
-#define LCD_CHARS_PER_LINE 40
-#define MAX_IDLE_TIME 120
-
-struct lcd_display {
- unsigned buttons;
- int size1;
- int size2;
- unsigned char line1[LCD_CHARS_PER_LINE];
- unsigned char line2[LCD_CHARS_PER_LINE];
- unsigned char cursor_address;
- unsigned char character;
- unsigned char leds;
- unsigned char *RomImage;
-};
-
-
-
-#define LCD_DRIVER "Cobalt LCD Driver v2.10"
-
-#define LCD "lcd: "
-
-#define kLCD_IR 0x0F000000
-#define kLCD_DR 0x0F000010
-#define kGPI 0x0D000000
-#define kLED 0x0C000000
-
-#define kDD_R00 0x00
-#define kDD_R01 0x27
-#define kDD_R10 0x40
-#define kDD_R11 0x67
-
-#define kLCD_Addr 0x00000080
-
-#define LCDTimeoutValue 0xfff
-
-
-// Macros
-
-#define LCDWriteData(x) outl((x << 24), kLCD_DR)
-#define LCDWriteInst(x) outl((x << 24), kLCD_IR)
-
-#define LCDReadData (inl(kLCD_DR) >> 24)
-#define LCDReadInst (inl(kLCD_IR) >> 24)
-
-#define GPIRead (inl(kGPI) >> 24)
-
-#define LEDSet(x) outb((char)x, kLED)
-
-#define WRITE_GAL(x,y) outl(y, 0x04000000 | (x))
-#define BusyCheck() while ((LCDReadInst & 0x80) == 0x80)
-
-
-
-/*
- * Function command codes for io_ctl.
- */
-#define LCD_On 1
-#define LCD_Off 2
-#define LCD_Clear 3
-#define LCD_Reset 4
-#define LCD_Cursor_Left 5
-#define LCD_Cursor_Right 6
-#define LCD_Disp_Left 7
-#define LCD_Disp_Right 8
-#define LCD_Get_Cursor 9
-#define LCD_Set_Cursor 10
-#define LCD_Home 11
-#define LCD_Read 12
-#define LCD_Write 13
-#define LCD_Cursor_Off 14
-#define LCD_Cursor_On 15
-#define LCD_Get_Cursor_Pos 16
-#define LCD_Set_Cursor_Pos 17
-#define LCD_Blink_Off 18
-
-#define LED_Set 40
-#define LED_Bit_Set 41
-#define LED_Bit_Clear 42
-
-
-// Button defs
-#define BUTTON_Read 50
-
-
-// Ethernet LINK check hackaroo
-#define LINK_Check 90
-#define LINK_Check_2 91
-
-// Button patterns _B - single layer lcd boards
-
-#define BUTTON_NONE 0x3F
-#define BUTTON_NONE_B 0xFE
-
-#define BUTTON_Left 0x3B
-#define BUTTON_Left_B 0xFA
-
-#define BUTTON_Right 0x37
-#define BUTTON_Right_B 0xDE
-
-#define BUTTON_Up 0x2F
-#define BUTTON_Up_B 0xF6
-
-#define BUTTON_Down 0x1F
-#define BUTTON_Down_B 0xEE
-
-#define BUTTON_Next 0x3D
-#define BUTTON_Next_B 0x7E
-
-#define BUTTON_Enter 0x3E
-#define BUTTON_Enter_B 0xBE
-
-#define BUTTON_Reset_B 0xFC
-
-
-// debounce constants
-
-#define BUTTON_SENSE 160000
-#define BUTTON_DEBOUNCE 5000
-
-
-// Galileo register stuff
-
-#define kGal_DevBank2Cfg 0x1466DB33
-#define kGal_DevBank2PReg 0x464
-#define kGal_DevBank3Cfg 0x146FDFFB
-#define kGal_DevBank3PReg 0x468
-
-// Network
-
-#define kIPADDR 1
-#define kNETMASK 2
-#define kGATEWAY 3
-#define kDNS 4
-
-#define kClassA 5
-#define kClassB 6
-#define kClassC 7
-
static struct vm_operations_struct mmap_mem_ops = {
.open = mmap_mem_open,
- .close = mmap_mem_close
+ .close = mmap_mem_close,
+#ifdef CONFIG_HAVE_IOREMAP_PROT
+ .access = generic_access_phys
+#endif
};
static int mmap_mem(struct file * file, struct vm_area_struct * vma)
}
/*
- * mspec_nopfn
+ * mspec_fault
*
* Creates a mspec page and maps it to user space.
*/
-static unsigned long
-mspec_nopfn(struct vm_area_struct *vma, unsigned long address)
+static int
+mspec_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
{
unsigned long paddr, maddr;
unsigned long pfn;
- int index;
+ pgoff_t index = vmf->pgoff;
struct vma_data *vdata = vma->vm_private_data;
- BUG_ON(address < vdata->vm_start || address >= vdata->vm_end);
- index = (address - vdata->vm_start) >> PAGE_SHIFT;
maddr = (volatile unsigned long) vdata->maddr[index];
if (maddr == 0) {
maddr = uncached_alloc_page(numa_node_id(), 1);
if (maddr == 0)
- return NOPFN_OOM;
+ return VM_FAULT_OOM;
spin_lock(&vdata->lock);
if (vdata->maddr[index] == 0) {
pfn = paddr >> PAGE_SHIFT;
- return pfn;
+ /*
+ * vm_insert_pfn can fail with -EBUSY, but in that case it will
+ * be because another thread has installed the pte first, so it
+ * is no problem.
+ */
+ vm_insert_pfn(vma, (unsigned long)vmf->virtual_address, pfn);
+
+ return VM_FAULT_NOPAGE;
}
static struct vm_operations_struct mspec_vm_ops = {
.open = mspec_open,
.close = mspec_close,
- .nopfn = mspec_nopfn
+ .fault = mspec_fault,
};
/*
#include <linux/fs.h>
#include <linux/genhd.h>
#include <linux/interrupt.h>
+#include <linux/mm.h>
#include <linux/spinlock.h>
#include <linux/percpu.h>
#include <linux/cryptohash.h>
#include <linux/wait.h>
#include <linux/bcd.h>
#include <linux/delay.h>
+#include <linux/smp_lock.h>
+#include <linux/uaccess.h>
#include <asm/current.h>
-#include <asm/uaccess.h>
#include <asm/system.h>
#ifdef CONFIG_X86
return 0;
}
#endif
-#else
-extern irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id);
#endif
/*
static ssize_t rtc_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos);
-static int rtc_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg);
+static long rtc_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
#ifdef RTC_IRQ
static unsigned int rtc_poll(struct file *file, poll_table *wait);
&wtime, sizeof wtime) ? -EFAULT : 0;
}
-static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
- unsigned long arg)
+static long rtc_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
- return rtc_do_ioctl(cmd, arg, 0);
+ long ret;
+ lock_kernel();
+ ret = rtc_do_ioctl(cmd, arg, 0);
+ unlock_kernel();
+ return ret;
}
/*
#ifdef RTC_IRQ
.poll = rtc_poll,
#endif
- .ioctl = rtc_ioctl,
+ .unlocked_ioctl = rtc_ioctl,
.open = rtc_open,
.release = rtc_release,
.fasync = rtc_fasync,
static int stl_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg)
{
struct stlport *portp;
- unsigned int ival;
int rc;
void __user *argp = (void __user *)arg;
EXPORT_SYMBOL(tty_hung_up_p);
-/**
- * is_tty - checker whether file is a TTY
- * @filp: file handle that may be a tty
- *
- * Check if the file handle is a tty handle.
- */
-
-int is_tty(struct file *filp)
-{
- return filp->f_op->read == tty_read
- || filp->f_op->read == hung_up_tty_read;
-}
-
static void session_clear_tty(struct pid *session)
{
struct task_struct *p;
#ifdef VT_BUF_VRAM_ONLY
#define DO_UPDATE(vc) 0
#else
-#define DO_UPDATE(vc) CON_IS_VISIBLE(vc)
+#define DO_UPDATE(vc) (CON_IS_VISIBLE(vc) && !console_blanked)
#endif
static inline unsigned short *screenpos(struct vc_data *vc, int offset, int viewed)
tty->termios->c_iflag |= IUTF8;
else
tty->termios->c_iflag &= ~IUTF8;
- release_console_sem();
vcs_make_sysfs(tty);
+ release_console_sem();
return ret;
}
}
if (vc)
vc->vc_tty = NULL;
tty->driver_data = NULL;
- release_console_sem();
vcs_remove_sysfs(tty);
+ release_console_sem();
mutex_unlock(&tty_mutex);
/*
* tty_mutex is released, but we still hold BKL, so there is
#include <linux/pci.h>
#include <linux/sched.h>
+#include <linux/mm.h>
#include <linux/slab.h>
#include "hosts.h"
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/semaphore.h>
#include <linux/slab.h>
#include <linux/pci_ids.h>
#include <linux/proc_fs.h>
#include <linux/poll.h>
#include <linux/rtc.h>
+#include <linux/semaphore.h>
MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
MODULE_DESCRIPTION("HP i8042 SDC + MSM-58321 RTC Driver");
#include <linux/module.h>
#include <linux/ioport.h>
#include <linux/time.h>
+#include <linux/semaphore.h>
#include <linux/slab.h>
#include <linux/hil.h>
#include <linux/semaphore.h>
else
skb = iraw_encode(skb, HW_HDR_LEN, 0);
if (!skb) {
- err("unable to allocate memory for encoding!\n");
+ dev_err(bcs->cs->dev,
+ "unable to allocate memory for encoding!\n");
return -ENOMEM;
}
}
/* retrieve block of data to send */
- ifd->offset = gigaset_isowbuf_getbytes(ubc->isooutbuf,
- ifd->length);
- if (ifd->offset < 0) {
- if (ifd->offset == -EBUSY) {
+ rc = gigaset_isowbuf_getbytes(ubc->isooutbuf, ifd->length);
+ if (rc < 0) {
+ if (rc == -EBUSY) {
gig_dbg(DEBUG_ISO,
"%s: buffer busy at frame %d",
__func__, nframe);
} else {
dev_err(ucx->bcs->cs->dev,
"%s: buffer error %d at frame %d\n",
- __func__, ifd->offset, nframe);
- return ifd->offset;
+ __func__, rc, nframe);
+ return rc;
}
break;
}
+ ifd->offset = rc;
ucx->limit = ubc->isooutbuf->nextread;
ifd->status = 0;
ifd->actual_length = 0;
tail = cs->ev_tail;
next = (tail + 1) % MAX_EVENTS;
if (unlikely(next == cs->ev_head))
- err("event queue full");
+ dev_err(cs->dev, "event queue full\n");
else {
event = cs->events + tail;
event->type = type;
#undef err
#undef info
#undef warn
-#undef notice
#define err(format, arg...) printk(KERN_ERR KBUILD_MODNAME ": " \
format "\n" , ## arg)
format "\n" , ## arg)
#define warn(format, arg...) printk(KERN_WARNING KBUILD_MODNAME ": " \
format "\n" , ## arg)
-#define notice(format, arg...) printk(KERN_NOTICE KBUILD_MODNAME ": " \
- format "\n" , ## arg)
#ifdef CONFIG_GIGASET_DEBUG
return -ENODEV;
}
if (channel < 0 || channel >= cs->channels) {
- err("%s: invalid channel ID (%d)", __func__, channel);
+ dev_err(cs->dev, "%s: invalid channel ID (%d)\n",
+ __func__, channel);
return -ENODEV;
}
bcs = &cs->bcs[channel];
if (!len) {
if (ack)
- notice("%s: not ACKing empty packet", __func__);
+ dev_notice(cs->dev, "%s: not ACKing empty packet\n",
+ __func__);
return 0;
}
if (len > MAX_BUF_SIZE) {
- err("%s: packet too large (%d bytes)", __func__, len);
+ dev_err(cs->dev, "%s: packet too large (%d bytes)\n",
+ __func__, len);
return -EINVAL;
}
gigaset_debugdrivers();
if (!cs) {
- warn("LL tried to access unknown device with nr. %d",
- cntrl->driver);
+ err("%s: invalid driver ID (%d)", __func__, cntrl->driver);
return -ENODEV;
}
gig_dbg(DEBUG_ANY, "ISDN_CMD_IOCTL (driver: %d, arg: %ld)",
cntrl->driver, cntrl->arg);
- warn("ISDN_CMD_IOCTL is not supported.");
+ dev_warn(cs->dev, "ISDN_CMD_IOCTL not supported\n");
return -EINVAL;
case ISDN_CMD_DIAL:
cntrl->parm.setup.si1, cntrl->parm.setup.si2);
if (cntrl->arg >= cs->channels) {
- err("ISDN_CMD_DIAL: invalid channel (%d)",
- (int) cntrl->arg);
+ dev_err(cs->dev,
+ "ISDN_CMD_DIAL: invalid channel (%d)\n",
+ (int) cntrl->arg);
return -EINVAL;
}
bcs = cs->bcs + cntrl->arg;
if (!gigaset_get_channel(bcs)) {
- err("ISDN_CMD_DIAL: channel not free");
+ dev_err(cs->dev, "ISDN_CMD_DIAL: channel not free\n");
return -EBUSY;
}
sp = kmalloc(sizeof *sp, GFP_ATOMIC);
if (!sp) {
gigaset_free_channel(bcs);
- err("ISDN_CMD_DIAL: out of memory");
+ dev_err(cs->dev, "ISDN_CMD_DIAL: out of memory\n");
return -ENOMEM;
}
*sp = cntrl->parm.setup;
gig_dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTD");
if (cntrl->arg >= cs->channels) {
- err("ISDN_CMD_ACCEPTD: invalid channel (%d)",
- (int) cntrl->arg);
+ dev_err(cs->dev,
+ "ISDN_CMD_ACCEPTD: invalid channel (%d)\n",
+ (int) cntrl->arg);
return -EINVAL;
}
(int) cntrl->arg);
if (cntrl->arg >= cs->channels) {
- err("ISDN_CMD_HANGUP: invalid channel (%u)",
- (unsigned) cntrl->arg);
+ dev_err(cs->dev,
+ "ISDN_CMD_HANGUP: invalid channel (%d)\n",
+ (int) cntrl->arg);
return -EINVAL;
}
cntrl->arg & 0xff, (cntrl->arg >> 8));
if ((cntrl->arg & 0xff) >= cs->channels) {
- err("ISDN_CMD_SETL2: invalid channel (%u)",
- (unsigned) cntrl->arg & 0xff);
+ dev_err(cs->dev,
+ "ISDN_CMD_SETL2: invalid channel (%d)\n",
+ (int) cntrl->arg & 0xff);
return -EINVAL;
}
cntrl->arg & 0xff, (cntrl->arg >> 8));
if ((cntrl->arg & 0xff) >= cs->channels) {
- err("ISDN_CMD_SETL3: invalid channel (%u)",
- (unsigned) cntrl->arg & 0xff);
+ dev_err(cs->dev,
+ "ISDN_CMD_SETL3: invalid channel (%d)\n",
+ (int) cntrl->arg & 0xff);
return -EINVAL;
}
if (cntrl->arg >> 8 != ISDN_PROTO_L3_TRANS) {
- err("ISDN_CMD_SETL3: invalid protocol %lu",
- cntrl->arg >> 8);
+ dev_err(cs->dev,
+ "ISDN_CMD_SETL3: invalid protocol %lu\n",
+ cntrl->arg >> 8);
return -EINVAL;
}
case ISDN_CMD_ALERT:
gig_dbg(DEBUG_ANY, "ISDN_CMD_ALERT"); //FIXME
if (cntrl->arg >= cs->channels) {
- err("ISDN_CMD_ALERT: invalid channel (%d)",
- (int) cntrl->arg);
+ dev_err(cs->dev,
+ "ISDN_CMD_ALERT: invalid channel (%d)\n",
+ (int) cntrl->arg);
return -EINVAL;
}
//bcs = cs->bcs + cntrl->arg;
gig_dbg(DEBUG_ANY, "ISDN_CMD_GETSIL");
break;
default:
- err("unknown command %d from LL", cntrl->command);
+ dev_err(cs->dev, "unknown command %d from LL\n",
+ cntrl->command);
return -EINVAL;
}
mutex_lock(&cs->mutex);
if (!cs->open_count)
- warn("%s: device not opened", __func__);
+ dev_warn(cs->dev, "%s: device not opened\n", __func__);
else {
if (!--cs->open_count) {
spin_lock_irqsave(&cs->lock, flags);
return -ERESTARTSYS; // FIXME -EINTR?
if (!cs->open_count)
- warn("%s: device not opened", __func__);
+ dev_warn(cs->dev, "%s: device not opened\n", __func__);
else {
retval = 0;
switch (cmd) {
return -ERESTARTSYS; // FIXME -EINTR?
if (!cs->open_count)
- warn("%s: device not opened", __func__);
+ dev_warn(cs->dev, "%s: device not opened\n", __func__);
else if (cs->mstate != MS_LOCKED) {
- warn("can't write to unlocked device");
+ dev_warn(cs->dev, "can't write to unlocked device\n");
retval = -EBUSY;
} else if (!cs->connected) {
gig_dbg(DEBUG_ANY, "can't write to unplugged device");
return -ERESTARTSYS; // FIXME -EINTR?
if (!cs->open_count)
- warn("%s: device not opened", __func__);
+ dev_warn(cs->dev, "%s: device not opened\n", __func__);
else if (cs->mstate != MS_LOCKED) {
- warn("can't write to unlocked device");
+ dev_warn(cs->dev, "can't write to unlocked device\n");
retval = -EBUSY;
} else if (!cs->connected) {
gig_dbg(DEBUG_ANY, "can't write to unplugged device");
return -ERESTARTSYS; // FIXME -EINTR?
if (!cs->open_count)
- warn("%s: device not opened", __func__);
+ dev_warn(cs->dev, "%s: device not opened\n", __func__);
else if (cs->mstate != MS_LOCKED) {
- warn("can't write to unlocked device");
+ dev_warn(cs->dev, "can't write to unlocked device\n");
retval = -EBUSY;
} else if (!cs->connected) {
gig_dbg(DEBUG_ANY, "can't write to unplugged device");
mutex_lock(&cs->mutex);
if (!cs->open_count)
- warn("%s: device not opened", __func__);
+ dev_warn(cs->dev, "%s: device not opened\n", __func__);
else {
//FIXME
}
mutex_lock(&cs->mutex);
if (!cs->open_count)
- warn("%s: device not opened", __func__);
+ dev_warn(cs->dev, "%s: device not opened\n", __func__);
else {
//FIXME
}
mutex_lock(&cs->mutex);
if (!cs->open_count) {
- warn("%s: device not opened", __func__);
+ dev_warn(cs->dev, "%s: device not opened\n", __func__);
goto out;
}
if (!IS_ERR(cs->tty_dev))
dev_set_drvdata(cs->tty_dev, cs);
else {
- warn("could not register device to the tty subsystem");
+ dev_warn(cs->dev,
+ "could not register device to the tty subsystem\n");
cs->tty_dev = NULL;
}
mutex_unlock(&cs->mutex);
if (status) {
ucs->busy = 0;
- err("could not submit urb (error %d)\n",
- -status);
+ dev_err(cs->dev,
+ "could not submit urb (error %d)\n",
+ -status);
cb->len = 0; /* skip urb => remove cb+wakeup
in next loop cycle */
}
spin_unlock_irqrestore(&cs->lock, flags);
if (ret) {
- err("could not submit urb (error %d)\n", -ret);
+ dev_err(cs->dev, "could not submit urb (error %d)\n", -ret);
ucs->busy = 0;
}
This option enables led support for the handheld
HP Jornada 620/660/680/690.
+config LEDS_PCA9532
+ tristate "LED driver for PCA9532 dimmer"
+ depends on LEDS_CLASS && I2C && INPUT && EXPERIMENTAL
+ help
+ This option enables support for NXP pca9532
+ led controller. It is generally only usefull
+ as a platform driver
+
config LEDS_GPIO
tristate "LED Support for GPIO connected LEDs"
depends on LEDS_CLASS && GENERIC_GPIO
To compile this driver as a module, choose M here: the
module will be called leds-clevo-mail.
+config LEDS_PCA955X
+ tristate "LED Support for PCA955x I2C chips"
+ depends on LEDS_CLASS && I2C
+ help
+ This option enables support for LEDs connected to PCA955x
+ LED driver chips accessed via the I2C bus. Supported
+ devices include PCA9550, PCA9551, PCA9552, and PCA9553.
+
comment "LED Triggers"
config LEDS_TRIGGERS
obj-$(CONFIG_LEDS_H1940) += leds-h1940.o
obj-$(CONFIG_LEDS_COBALT_QUBE) += leds-cobalt-qube.o
obj-$(CONFIG_LEDS_COBALT_RAQ) += leds-cobalt-raq.o
+obj-$(CONFIG_LEDS_PCA9532) += leds-pca9532.o
obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o
obj-$(CONFIG_LEDS_CM_X270) += leds-cm-x270.o
obj-$(CONFIG_LEDS_CLEVO_MAIL) += leds-clevo-mail.o
obj-$(CONFIG_LEDS_HP6XX) += leds-hp6xx.o
obj-$(CONFIG_LEDS_FSG) += leds-fsg.o
+obj-$(CONFIG_LEDS_PCA955X) += leds-pca955x.o
# LED Triggers
obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o
flags);
if (led_cdev->trigger->deactivate)
led_cdev->trigger->deactivate(led_cdev);
+ led_cdev->trigger = NULL;
led_set_brightness(led_cdev, LED_OFF);
}
if (trigger) {
write_lock_irqsave(&trigger->leddev_list_lock, flags);
list_add_tail(&led_cdev->trig_list, &trigger->led_cdevs);
write_unlock_irqrestore(&trigger->leddev_list_lock, flags);
+ led_cdev->trigger = trigger;
if (trigger->activate)
trigger->activate(led_cdev);
}
- led_cdev->trigger = trigger;
}
EXPORT_SYMBOL_GPL(led_trigger_set);
{
const struct gpio_led_platform_data *pdata;
struct pwmled *leds;
- unsigned i;
+ int i;
int status;
pdata = pdev->dev.platform_data;
/*
* Green led.
*/
-void h1940_greenled_set(struct led_classdev *led_dev, enum led_brightness value)
+static void h1940_greenled_set(struct led_classdev *led_dev,
+ enum led_brightness value)
{
switch (value) {
case LED_HALF:
/*
* Red led.
*/
-void h1940_redled_set(struct led_classdev *led_dev, enum led_brightness value)
+static void h1940_redled_set(struct led_classdev *led_dev,
+ enum led_brightness value)
{
switch (value) {
case LED_HALF:
* Blue led.
* (it can only be blue flashing led)
*/
-void h1940_blueled_set(struct led_classdev *led_dev, enum led_brightness value)
+static void h1940_blueled_set(struct led_classdev *led_dev,
+ enum led_brightness value)
{
if (value) {
/* flashing Blue */
--- /dev/null
+/*
+ * pca9532.c - 16-bit Led dimmer
+ *
+ * Copyright (C) 2008 Riku Voipio <riku.voipio@movial.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * Datasheet: http://www.nxp.com/acrobat/datasheets/PCA9532_3.pdf
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/leds.h>
+#include <linux/input.h>
+#include <linux/mutex.h>
+#include <linux/leds-pca9532.h>
+
+static const unsigned short normal_i2c[] = { /*0x60,*/ I2C_CLIENT_END};
+I2C_CLIENT_INSMOD_1(pca9532);
+
+#define PCA9532_REG_PSC(i) (0x2+(i)*2)
+#define PCA9532_REG_PWM(i) (0x3+(i)*2)
+#define PCA9532_REG_LS0 0x6
+#define LED_REG(led) ((led>>2)+PCA9532_REG_LS0)
+#define LED_NUM(led) (led & 0x3)
+
+#define ldev_to_led(c) container_of(c, struct pca9532_led, ldev)
+
+struct pca9532_data {
+ struct i2c_client *client;
+ struct pca9532_led leds[16];
+ struct mutex update_lock;
+ struct input_dev *idev;
+ u8 pwm[2];
+ u8 psc[2];
+};
+
+static int pca9532_probe(struct i2c_client *client,
+ const struct i2c_device_id *id);
+static int pca9532_remove(struct i2c_client *client);
+
+static const struct i2c_device_id pca9532_id[] = {
+ { "pca9532", 0 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(i2c, pca9532_id);
+
+static struct i2c_driver pca9532_driver = {
+ .driver = {
+ .name = "pca9532",
+ },
+ .probe = pca9532_probe,
+ .remove = pca9532_remove,
+ .id_table = pca9532_id,
+};
+
+/* We have two pwm/blinkers, but 16 possible leds to drive. Additionaly,
+ * the clever Thecus people are using one pwm to drive the beeper. So,
+ * as a compromise we average one pwm to the values requested by all
+ * leds that are not ON/OFF.
+ * */
+static int pca9532_setpwm(struct i2c_client *client, int pwm, int blink,
+ enum led_brightness value)
+{
+ int a = 0, b = 0, i = 0;
+ struct pca9532_data *data = i2c_get_clientdata(client);
+ for (i = 0; i < 16; i++) {
+ if (data->leds[i].type == PCA9532_TYPE_LED &&
+ data->leds[i].state == PCA9532_PWM0+pwm) {
+ a++;
+ b += data->leds[i].ldev.brightness;
+ }
+ }
+ if (a == 0) {
+ dev_err(&client->dev,
+ "fear of division by zero %d/%d, wanted %d\n",
+ b, a, value);
+ return -EINVAL;
+ }
+ b = b/a;
+ if (b > 0xFF)
+ return -EINVAL;
+ mutex_lock(&data->update_lock);
+ data->pwm[pwm] = b;
+ i2c_smbus_write_byte_data(client, PCA9532_REG_PWM(pwm),
+ data->pwm[pwm]);
+ data->psc[pwm] = blink;
+ i2c_smbus_write_byte_data(client, PCA9532_REG_PSC(pwm),
+ data->psc[pwm]);
+ mutex_unlock(&data->update_lock);
+ return 0;
+}
+
+/* Set LED routing */
+static void pca9532_setled(struct pca9532_led *led)
+{
+ struct i2c_client *client = led->client;
+ struct pca9532_data *data = i2c_get_clientdata(client);
+ char reg;
+
+ mutex_lock(&data->update_lock);
+ reg = i2c_smbus_read_byte_data(client, LED_REG(led->id));
+ /* zero led bits */
+ reg = reg & ~(0x3<<LED_NUM(led->id)*2);
+ /* set the new value */
+ reg = reg | (led->state << LED_NUM(led->id)*2);
+ i2c_smbus_write_byte_data(client, LED_REG(led->id), reg);
+ mutex_unlock(&data->update_lock);
+}
+
+static void pca9532_set_brightness(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ int err = 0;
+ struct pca9532_led *led = ldev_to_led(led_cdev);
+
+ if (value == LED_OFF)
+ led->state = PCA9532_OFF;
+ else if (value == LED_FULL)
+ led->state = PCA9532_ON;
+ else {
+ led->state = PCA9532_PWM0; /* Thecus: hardcode one pwm */
+ err = pca9532_setpwm(led->client, 0, 0, value);
+ if (err)
+ return; /* XXX: led api doesn't allow error code? */
+ }
+ pca9532_setled(led);
+}
+
+static int pca9532_set_blink(struct led_classdev *led_cdev,
+ unsigned long *delay_on, unsigned long *delay_off)
+{
+ struct pca9532_led *led = ldev_to_led(led_cdev);
+ struct i2c_client *client = led->client;
+ int psc;
+
+ if (*delay_on == 0 && *delay_off == 0) {
+ /* led subsystem ask us for a blink rate */
+ *delay_on = 1000;
+ *delay_off = 1000;
+ }
+ if (*delay_on != *delay_off || *delay_on > 1690 || *delay_on < 6)
+ return -EINVAL;
+
+ /* Thecus specific: only use PSC/PWM 0 */
+ psc = (*delay_on * 152-1)/1000;
+ return pca9532_setpwm(client, 0, psc, led_cdev->brightness);
+}
+
+int pca9532_event(struct input_dev *dev, unsigned int type, unsigned int code,
+ int value)
+{
+ struct pca9532_data *data = input_get_drvdata(dev);
+
+ if (type != EV_SND && (code != SND_BELL || code != SND_TONE))
+ return -1;
+
+ /* XXX: allow different kind of beeps with psc/pwm modifications */
+ if (value > 1 && value < 32767)
+ data->pwm[1] = 127;
+ else
+ data->pwm[1] = 0;
+
+ dev_info(&dev->dev, "setting beep to %d \n", data->pwm[1]);
+ mutex_lock(&data->update_lock);
+ i2c_smbus_write_byte_data(data->client, PCA9532_REG_PWM(1),
+ data->pwm[1]);
+ mutex_unlock(&data->update_lock);
+
+ return 0;
+}
+
+static int pca9532_configure(struct i2c_client *client,
+ struct pca9532_data *data, struct pca9532_platform_data *pdata)
+{
+ int i, err = 0;
+
+ for (i = 0; i < 2; i++) {
+ data->pwm[i] = pdata->pwm[i];
+ data->psc[i] = pdata->psc[i];
+ i2c_smbus_write_byte_data(client, PCA9532_REG_PWM(i),
+ data->pwm[i]);
+ i2c_smbus_write_byte_data(client, PCA9532_REG_PSC(i),
+ data->psc[i]);
+ }
+
+ for (i = 0; i < 16; i++) {
+ struct pca9532_led *led = &data->leds[i];
+ struct pca9532_led *pled = &pdata->leds[i];
+ led->client = client;
+ led->id = i;
+ led->type = pled->type;
+ switch (led->type) {
+ case PCA9532_TYPE_NONE:
+ break;
+ case PCA9532_TYPE_LED:
+ led->state = pled->state;
+ led->name = pled->name;
+ led->ldev.name = led->name;
+ led->ldev.brightness = LED_OFF;
+ led->ldev.brightness_set = pca9532_set_brightness;
+ led->ldev.blink_set = pca9532_set_blink;
+ if (led_classdev_register(&client->dev,
+ &led->ldev) < 0) {
+ dev_err(&client->dev,
+ "couldn't register LED %s\n",
+ led->name);
+ goto exit;
+ }
+ pca9532_setled(led);
+ break;
+ case PCA9532_TYPE_N2100_BEEP:
+ BUG_ON(data->idev);
+ led->state = PCA9532_PWM1;
+ pca9532_setled(led);
+ data->idev = input_allocate_device();
+ if (data->idev == NULL) {
+ err = -ENOMEM;
+ goto exit;
+ }
+ data->idev->name = pled->name;
+ data->idev->phys = "i2c/pca9532";
+ data->idev->id.bustype = BUS_HOST;
+ data->idev->id.vendor = 0x001f;
+ data->idev->id.product = 0x0001;
+ data->idev->id.version = 0x0100;
+ data->idev->evbit[0] = BIT_MASK(EV_SND);
+ data->idev->sndbit[0] = BIT_MASK(SND_BELL) |
+ BIT_MASK(SND_TONE);
+ data->idev->event = pca9532_event;
+ input_set_drvdata(data->idev, data);
+ err = input_register_device(data->idev);
+ if (err) {
+ input_free_device(data->idev);
+ data->idev = NULL;
+ goto exit;
+ }
+ break;
+ }
+ }
+ return 0;
+
+exit:
+ if (i > 0)
+ for (i = i - 1; i >= 0; i--)
+ switch (data->leds[i].type) {
+ case PCA9532_TYPE_NONE:
+ break;
+ case PCA9532_TYPE_LED:
+ led_classdev_unregister(&data->leds[i].ldev);
+ break;
+ case PCA9532_TYPE_N2100_BEEP:
+ if (data->idev != NULL) {
+ input_unregister_device(data->idev);
+ input_free_device(data->idev);
+ data->idev = NULL;
+ }
+ break;
+ }
+
+ return err;
+
+}
+
+static int pca9532_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct pca9532_data *data = i2c_get_clientdata(client);
+ struct pca9532_platform_data *pca9532_pdata = client->dev.platform_data;
+
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_BYTE_DATA))
+ return -EIO;
+
+ data = kzalloc(sizeof(struct pca9532_data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ dev_info(&client->dev, "setting platform data\n");
+ i2c_set_clientdata(client, data);
+ data->client = client;
+ mutex_init(&data->update_lock);
+
+ if (pca9532_pdata == NULL)
+ return -EIO;
+
+ pca9532_configure(client, data, pca9532_pdata);
+ return 0;
+
+}
+
+static int pca9532_remove(struct i2c_client *client)
+{
+ struct pca9532_data *data = i2c_get_clientdata(client);
+ int i;
+ for (i = 0; i < 16; i++)
+ switch (data->leds[i].type) {
+ case PCA9532_TYPE_NONE:
+ break;
+ case PCA9532_TYPE_LED:
+ led_classdev_unregister(&data->leds[i].ldev);
+ break;
+ case PCA9532_TYPE_N2100_BEEP:
+ if (data->idev != NULL) {
+ input_unregister_device(data->idev);
+ input_free_device(data->idev);
+ data->idev = NULL;
+ }
+ break;
+ }
+
+ kfree(data);
+ i2c_set_clientdata(client, NULL);
+ return 0;
+}
+
+static int __init pca9532_init(void)
+{
+ return i2c_add_driver(&pca9532_driver);
+}
+
+static void __exit pca9532_exit(void)
+{
+ i2c_del_driver(&pca9532_driver);
+}
+
+MODULE_AUTHOR("Riku Voipio <riku.voipio@movial.fi>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("PCA 9532 LED dimmer");
+
+module_init(pca9532_init);
+module_exit(pca9532_exit);
+
--- /dev/null
+/*
+ * Copyright 2007-2008 Extreme Engineering Solutions, Inc.
+ *
+ * Author: Nate Case <ncase@xes-inc.com>
+ *
+ * This file is subject to the terms and conditions of version 2 of
+ * the GNU General Public License. See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * LED driver for various PCA955x I2C LED drivers
+ *
+ * Supported devices:
+ *
+ * Device Description 7-bit slave address
+ * ------ ----------- -------------------
+ * PCA9550 2-bit driver 0x60 .. 0x61
+ * PCA9551 8-bit driver 0x60 .. 0x67
+ * PCA9552 16-bit driver 0x60 .. 0x67
+ * PCA9553/01 4-bit driver 0x62
+ * PCA9553/02 4-bit driver 0x63
+ *
+ * Philips PCA955x LED driver chips follow a register map as shown below:
+ *
+ * Control Register Description
+ * ---------------- -----------
+ * 0x0 Input register 0
+ * ..
+ * NUM_INPUT_REGS - 1 Last Input register X
+ *
+ * NUM_INPUT_REGS Frequency prescaler 0
+ * NUM_INPUT_REGS + 1 PWM register 0
+ * NUM_INPUT_REGS + 2 Frequency prescaler 1
+ * NUM_INPUT_REGS + 3 PWM register 1
+ *
+ * NUM_INPUT_REGS + 4 LED selector 0
+ * NUM_INPUT_REGS + 4
+ * + NUM_LED_REGS - 1 Last LED selector
+ *
+ * where NUM_INPUT_REGS and NUM_LED_REGS vary depending on how many
+ * bits the chip supports.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/ctype.h>
+#include <linux/leds.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/workqueue.h>
+
+/* LED select registers determine the source that drives LED outputs */
+#define PCA955X_LS_LED_ON 0x0 /* Output LOW */
+#define PCA955X_LS_LED_OFF 0x1 /* Output HI-Z */
+#define PCA955X_LS_BLINK0 0x2 /* Blink at PWM0 rate */
+#define PCA955X_LS_BLINK1 0x3 /* Blink at PWM1 rate */
+
+enum pca955x_type {
+ pca9550,
+ pca9551,
+ pca9552,
+ pca9553,
+};
+
+struct pca955x_chipdef {
+ int bits;
+ u8 slv_addr; /* 7-bit slave address mask */
+ int slv_addr_shift; /* Number of bits to ignore */
+};
+
+static struct pca955x_chipdef pca955x_chipdefs[] = {
+ [pca9550] = {
+ .bits = 2,
+ .slv_addr = /* 110000x */ 0x60,
+ .slv_addr_shift = 1,
+ },
+ [pca9551] = {
+ .bits = 8,
+ .slv_addr = /* 1100xxx */ 0x60,
+ .slv_addr_shift = 3,
+ },
+ [pca9552] = {
+ .bits = 16,
+ .slv_addr = /* 1100xxx */ 0x60,
+ .slv_addr_shift = 3,
+ },
+ [pca9553] = {
+ .bits = 4,
+ .slv_addr = /* 110001x */ 0x62,
+ .slv_addr_shift = 1,
+ },
+};
+
+static const struct i2c_device_id pca955x_id[] = {
+ { "pca9550", pca9550 },
+ { "pca9551", pca9551 },
+ { "pca9552", pca9552 },
+ { "pca9553", pca9553 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, pca955x_id);
+
+struct pca955x_led {
+ struct pca955x_chipdef *chipdef;
+ struct i2c_client *client;
+ struct work_struct work;
+ spinlock_t lock;
+ enum led_brightness brightness;
+ struct led_classdev led_cdev;
+ int led_num; /* 0 .. 15 potentially */
+ char name[32];
+};
+
+/* 8 bits per input register */
+static inline int pca95xx_num_input_regs(int bits)
+{
+ return (bits + 7) / 8;
+}
+
+/* 4 bits per LED selector register */
+static inline int pca95xx_num_led_regs(int bits)
+{
+ return (bits + 3) / 4;
+}
+
+/*
+ * Return an LED selector register value based on an existing one, with
+ * the appropriate 2-bit state value set for the given LED number (0-3).
+ */
+static inline u8 pca955x_ledsel(u8 oldval, int led_num, int state)
+{
+ return (oldval & (~(0x3 << (led_num << 1)))) |
+ ((state & 0x3) << (led_num << 1));
+}
+
+/*
+ * Write to frequency prescaler register, used to program the
+ * period of the PWM output. period = (PSCx + 1) / 38
+ */
+static void pca955x_write_psc(struct i2c_client *client, int n, u8 val)
+{
+ struct pca955x_led *pca955x = i2c_get_clientdata(client);
+
+ i2c_smbus_write_byte_data(client,
+ pca95xx_num_input_regs(pca955x->chipdef->bits) + 2*n,
+ val);
+}
+
+/*
+ * Write to PWM register, which determines the duty cycle of the
+ * output. LED is OFF when the count is less than the value of this
+ * register, and ON when it is greater. If PWMx == 0, LED is always OFF.
+ *
+ * Duty cycle is (256 - PWMx) / 256
+ */
+static void pca955x_write_pwm(struct i2c_client *client, int n, u8 val)
+{
+ struct pca955x_led *pca955x = i2c_get_clientdata(client);
+
+ i2c_smbus_write_byte_data(client,
+ pca95xx_num_input_regs(pca955x->chipdef->bits) + 1 + 2*n,
+ val);
+}
+
+/*
+ * Write to LED selector register, which determines the source that
+ * drives the LED output.
+ */
+static void pca955x_write_ls(struct i2c_client *client, int n, u8 val)
+{
+ struct pca955x_led *pca955x = i2c_get_clientdata(client);
+
+ i2c_smbus_write_byte_data(client,
+ pca95xx_num_input_regs(pca955x->chipdef->bits) + 4 + n,
+ val);
+}
+
+/*
+ * Read the LED selector register, which determines the source that
+ * drives the LED output.
+ */
+static u8 pca955x_read_ls(struct i2c_client *client, int n)
+{
+ struct pca955x_led *pca955x = i2c_get_clientdata(client);
+
+ return (u8) i2c_smbus_read_byte_data(client,
+ pca95xx_num_input_regs(pca955x->chipdef->bits) + 4 + n);
+}
+
+static void pca955x_led_work(struct work_struct *work)
+{
+ struct pca955x_led *pca955x;
+ u8 ls;
+ int chip_ls; /* which LSx to use (0-3 potentially) */
+ int ls_led; /* which set of bits within LSx to use (0-3) */
+
+ pca955x = container_of(work, struct pca955x_led, work);
+ chip_ls = pca955x->led_num / 4;
+ ls_led = pca955x->led_num % 4;
+
+ ls = pca955x_read_ls(pca955x->client, chip_ls);
+
+ switch (pca955x->brightness) {
+ case LED_FULL:
+ ls = pca955x_ledsel(ls, ls_led, PCA955X_LS_LED_ON);
+ break;
+ case LED_OFF:
+ ls = pca955x_ledsel(ls, ls_led, PCA955X_LS_LED_OFF);
+ break;
+ case LED_HALF:
+ ls = pca955x_ledsel(ls, ls_led, PCA955X_LS_BLINK0);
+ break;
+ default:
+ /*
+ * Use PWM1 for all other values. This has the unwanted
+ * side effect of making all LEDs on the chip share the
+ * same brightness level if set to a value other than
+ * OFF, HALF, or FULL. But, this is probably better than
+ * just turning off for all other values.
+ */
+ pca955x_write_pwm(pca955x->client, 1, 255-pca955x->brightness);
+ ls = pca955x_ledsel(ls, ls_led, PCA955X_LS_BLINK1);
+ break;
+ }
+
+ pca955x_write_ls(pca955x->client, chip_ls, ls);
+}
+
+void pca955x_led_set(struct led_classdev *led_cdev, enum led_brightness value)
+{
+ struct pca955x_led *pca955x;
+
+ pca955x = container_of(led_cdev, struct pca955x_led, led_cdev);
+
+ spin_lock(&pca955x->lock);
+ pca955x->brightness = value;
+
+ /*
+ * Must use workqueue for the actual I/O since I2C operations
+ * can sleep.
+ */
+ schedule_work(&pca955x->work);
+
+ spin_unlock(&pca955x->lock);
+}
+
+static int __devinit pca955x_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct pca955x_led *pca955x;
+ int i;
+ int err = -ENODEV;
+ struct pca955x_chipdef *chip;
+ struct i2c_adapter *adapter;
+ struct led_platform_data *pdata;
+
+ chip = &pca955x_chipdefs[id->driver_data];
+ adapter = to_i2c_adapter(client->dev.parent);
+ pdata = client->dev.platform_data;
+
+ /* Make sure the slave address / chip type combo given is possible */
+ if ((client->addr & ~((1 << chip->slv_addr_shift) - 1)) !=
+ chip->slv_addr) {
+ dev_err(&client->dev, "invalid slave address %02x\n",
+ client->addr);
+ return -ENODEV;
+ }
+
+ printk(KERN_INFO "leds-pca955x: Using %s %d-bit LED driver at "
+ "slave address 0x%02x\n",
+ id->name, chip->bits, client->addr);
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
+ return -EIO;
+
+ if (pdata) {
+ if (pdata->num_leds != chip->bits) {
+ dev_err(&client->dev, "board info claims %d LEDs"
+ " on a %d-bit chip\n",
+ pdata->num_leds, chip->bits);
+ return -ENODEV;
+ }
+ }
+
+ for (i = 0; i < chip->bits; i++) {
+ pca955x = kzalloc(sizeof(struct pca955x_led), GFP_KERNEL);
+ if (!pca955x) {
+ err = -ENOMEM;
+ goto exit;
+ }
+
+ pca955x->chipdef = chip;
+ pca955x->client = client;
+ pca955x->led_num = i;
+ /* Platform data can specify LED names and default triggers */
+ if (pdata) {
+ if (pdata->leds[i].name)
+ snprintf(pca955x->name, 32, "pca955x:%s",
+ pdata->leds[i].name);
+ if (pdata->leds[i].default_trigger)
+ pca955x->led_cdev.default_trigger =
+ pdata->leds[i].default_trigger;
+ } else {
+ snprintf(pca955x->name, 32, "pca955x:%d", i);
+ }
+ spin_lock_init(&pca955x->lock);
+
+ pca955x->led_cdev.name = pca955x->name;
+ pca955x->led_cdev.brightness_set =
+ pca955x_led_set;
+
+ /*
+ * Client data is a pointer to the _first_ pca955x_led
+ * struct
+ */
+ if (i == 0)
+ i2c_set_clientdata(client, pca955x);
+
+ INIT_WORK(&(pca955x->work), pca955x_led_work);
+
+ led_classdev_register(&client->dev, &(pca955x->led_cdev));
+ }
+
+ /* Turn off LEDs */
+ for (i = 0; i < pca95xx_num_led_regs(chip->bits); i++)
+ pca955x_write_ls(client, i, 0x55);
+
+ /* PWM0 is used for half brightness or 50% duty cycle */
+ pca955x_write_pwm(client, 0, 255-LED_HALF);
+
+ /* PWM1 is used for variable brightness, default to OFF */
+ pca955x_write_pwm(client, 1, 0);
+
+ /* Set to fast frequency so we do not see flashing */
+ pca955x_write_psc(client, 0, 0);
+ pca955x_write_psc(client, 1, 0);
+
+ return 0;
+exit:
+ return err;
+}
+
+static int __devexit pca955x_remove(struct i2c_client *client)
+{
+ struct pca955x_led *pca955x = i2c_get_clientdata(client);
+ int leds = pca955x->chipdef->bits;
+ int i;
+
+ for (i = 0; i < leds; i++) {
+ led_classdev_unregister(&(pca955x->led_cdev));
+ cancel_work_sync(&(pca955x->work));
+ kfree(pca955x);
+ pca955x = pca955x + 1;
+ }
+
+ return 0;
+}
+
+static struct i2c_driver pca955x_driver = {
+ .driver = {
+ .name = "leds-pca955x",
+ .owner = THIS_MODULE,
+ },
+ .probe = pca955x_probe,
+ .remove = __devexit_p(pca955x_remove),
+ .id_table = pca955x_id,
+};
+
+static int __init pca955x_leds_init(void)
+{
+ return i2c_add_driver(&pca955x_driver);
+}
+
+static void __exit pca955x_leds_exit(void)
+{
+ i2c_del_driver(&pca955x_driver);
+}
+
+module_init(pca955x_leds_init);
+module_exit(pca955x_leds_exit);
+
+MODULE_AUTHOR("Nate Case <ncase@xes-inc.com>");
+MODULE_DESCRIPTION("PCA955x LED driver");
+MODULE_LICENSE("GPL v2");
#include <linux/kthread.h>
#include <linux/freezer.h>
+#include <linux/mm.h>
#include "dvbdev.h"
#include "pvrusb2-debug.h"
#include "pvrusb2-hdw-internal.h"
#include "pvrusb2-debug.h"
#include <linux/errno.h>
#include <linux/string.h>
+#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/mutex.h>
#include <asm/uaccess.h>
#include <linux/kernel.h>
#include <linux/version.h>
+#include <linux/mm.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
+#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
/* create user entries for this device */
tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.user_tid);
- if (tmp && (tmp != i2o_dev))
- sysfs_create_link(&i2o_dev->device.kobj, &tmp->device.kobj,
- "user");
+ if (tmp && (tmp != i2o_dev)) {
+ rc = sysfs_create_link(&i2o_dev->device.kobj,
+ &tmp->device.kobj, "user");
+ if (rc)
+ goto unreg_dev;
+ }
/* create user entries refering to this device */
list_for_each_entry(tmp, &c->devices, list)
if ((tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
- && (tmp != i2o_dev))
- sysfs_create_link(&tmp->device.kobj,
- &i2o_dev->device.kobj, "user");
+ && (tmp != i2o_dev)) {
+ rc = sysfs_create_link(&tmp->device.kobj,
+ &i2o_dev->device.kobj, "user");
+ if (rc)
+ goto rmlink1;
+ }
/* create parent entries for this device */
tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.parent_tid);
- if (tmp && (tmp != i2o_dev))
- sysfs_create_link(&i2o_dev->device.kobj, &tmp->device.kobj,
- "parent");
+ if (tmp && (tmp != i2o_dev)) {
+ rc = sysfs_create_link(&i2o_dev->device.kobj,
+ &tmp->device.kobj, "parent");
+ if (rc)
+ goto rmlink1;
+ }
/* create parent entries refering to this device */
list_for_each_entry(tmp, &c->devices, list)
if ((tmp->lct_data.parent_tid == i2o_dev->lct_data.tid)
- && (tmp != i2o_dev))
- sysfs_create_link(&tmp->device.kobj,
- &i2o_dev->device.kobj, "parent");
+ && (tmp != i2o_dev)) {
+ rc = sysfs_create_link(&tmp->device.kobj,
+ &i2o_dev->device.kobj, "parent");
+ if (rc)
+ goto rmlink2;
+ }
i2o_driver_notify_device_add_all(i2o_dev);
return 0;
+rmlink2:
+ /* If link creating failed halfway, we loop whole list to cleanup.
+ * And we don't care wrong removing of link, because sysfs_remove_link
+ * will take care of it.
+ */
+ list_for_each_entry(tmp, &c->devices, list) {
+ if (tmp->lct_data.parent_tid == i2o_dev->lct_data.tid)
+ sysfs_remove_link(&tmp->device.kobj, "parent");
+ }
+ sysfs_remove_link(&i2o_dev->device.kobj, "parent");
+rmlink1:
+ list_for_each_entry(tmp, &c->devices, list)
+ if (tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
+ sysfs_remove_link(&tmp->device.kobj, "user");
+ sysfs_remove_link(&i2o_dev->device.kobj, "user");
+unreg_dev:
+ list_del(&i2o_dev->list);
+ device_unregister(&i2o_dev->device);
err:
kfree(i2o_dev);
return rc;
if ((mr & 0xffff) == 0) {
mr |= val;
ret = PWM_CPR_CLKA;
- }
- if ((mr & (0xffff << 16)) == 0) {
+ } else if ((mr & (0xffff << 16)) == 0) {
mr |= val << 16;
ret = PWM_CPR_CLKB;
}
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/fs.h>
+#include <linux/mm.h>
#include <linux/major.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
disable_irq(adapter->pdev->irq);
e1000_intr(adapter->pdev->irq, netdev);
- e1000_clean_tx_irq(adapter);
-
enable_irq(adapter->pdev->irq);
}
#endif
* Fast Ethernet Controller (FEC) driver for Motorola MPC8xx.
* Copyright (c) 1997 Dan Malek (dmalek@jlc.net)
*
- * This version of the driver is specific to the FADS implementation,
- * since the board contains control registers external to the processor
- * for the control of the LevelOne LXT970 transceiver. The MPC860T manual
- * describes connections using the internal parallel port I/O, which
- * is basically all of Port D.
- *
* Right now, I am very wasteful with the buffers. I allocate memory
* pages and then divide them into 2K frame buffers. This way I know I
* have buffers large enough to hold one frame within one buffer descriptor.
#include <asm/pgtable.h>
#include <asm/cacheflush.h>
-#if defined(CONFIG_M523x) || defined(CONFIG_M527x) || \
- defined(CONFIG_M5272) || defined(CONFIG_M528x) || \
- defined(CONFIG_M520x) || defined(CONFIG_M532x)
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include "fec.h"
-#else
-#include <asm/8xx_immap.h>
-#include <asm/mpc8xx.h>
-#include "commproc.h"
-#endif
#if defined(CONFIG_FEC2)
#define FEC_MAX_PORTS 2
#define FEC_MAX_PORTS 1
#endif
-#if defined(CONFIG_FADS) || defined(CONFIG_RPXCLASSIC) || defined(CONFIG_M5272)
+#if defined(CONFIG_M5272)
#define HAVE_mii_link_interrupt
#endif
/* ------------------------------------------------------------------------- */
#ifdef HAVE_mii_link_interrupt
-#ifdef CONFIG_RPXCLASSIC
-static void
-mii_link_interrupt(void *dev_id);
-#else
static irqreturn_t
mii_link_interrupt(int irq, void * dev_id);
#endif
-#endif
#if defined(CONFIG_M5272)
/*
if (request_8xxirq(FEC_INTERRUPT, fec_enet_interrupt, 0, "fec", dev) != 0)
panic("Could not allocate FEC IRQ!");
-
-#ifdef CONFIG_RPXCLASSIC
- /* Make Port C, bit 15 an input that causes interrupts.
- */
- immap->im_ioport.iop_pcpar &= ~0x0001;
- immap->im_ioport.iop_pcdir &= ~0x0001;
- immap->im_ioport.iop_pcso &= ~0x0001;
- immap->im_ioport.iop_pcint |= 0x0001;
- cpm_install_handler(CPMVEC_PIO_PC15, mii_link_interrupt, dev);
-
- /* Make LEDS reflect Link status.
- */
- *((uint *) RPX_CSR_ADDR) &= ~BCSR2_FETHLEDMODE;
-#endif
-#ifdef CONFIG_FADS
- if (request_8xxirq(SIU_IRQ2, mii_link_interrupt, 0, "mii", dev) != 0)
- panic("Could not allocate MII IRQ!");
-#endif
}
static void __inline__ fec_get_mac(struct net_device *dev)
bd = (bd_t *)__res;
memcpy(dev->dev_addr, bd->bi_enetaddr, ETH_ALEN);
-
-#ifdef CONFIG_RPXCLASSIC
- /* The Embedded Planet boards have only one MAC address in
- * the EEPROM, but can have two Ethernet ports. For the
- * FEC port, we create another address by setting one of
- * the address bits above something that would have (up to
- * now) been allocated.
- */
- dev->dev_adrd[3] |= 0x80;
-#endif
}
static void __inline__ fec_set_mii(struct net_device *dev, struct fec_enet_private *fep)
/* This interrupt occurs when the PHY detects a link change.
*/
#ifdef HAVE_mii_link_interrupt
-#ifdef CONFIG_RPXCLASSIC
-static void
-mii_link_interrupt(void *dev_id)
-#else
static irqreturn_t
mii_link_interrupt(int irq, void * dev_id)
-#endif
{
struct net_device *dev = dev_id;
struct fec_enet_private *fep = netdev_priv(dev);
#include <linux/init.h>
#include <linux/interrupt.h>
+#include <linux/mm.h>
#include <linux/dma-mapping.h>
#include <linux/mlx4/cmd.h>
if (netif_msg_ifdown(sky2))
printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
- /* Stop more packets from being queued */
- netif_stop_queue(dev);
-
/* Disable port IRQ */
imask = sky2_read32(hw, B0_IMSK);
imask &= ~portirq_msk[port];
sky2_phy_power_down(hw, port);
- netif_carrier_off(dev);
-
/* turn off LED's */
sky2_write16(hw, B0_Y2LED, LED_STAT_OFF);
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
+#include <linux/mm.h>
#include <linux/vmalloc.h>
#include <linux/of_platform.h>
if SPI_MASTER
+config RTC_DRV_M41T94
+ tristate "ST M41T94"
+ help
+ If you say yes here you will get support for the
+ ST M41T94 SPI RTC chip.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-m41t94.
+
+config RTC_DRV_DS1305
+ tristate "Dallas/Maxim DS1305/DS1306"
+ help
+ Select this driver to get support for the Dallas/Maxim DS1305
+ and DS1306 real time clock chips. These support a trickle
+ charger, alarms, and NVRAM in addition to the clock.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-ds1305.
+
config RTC_DRV_MAX6902
tristate "Maxim MAX6902"
help
obj-$(CONFIG_RTC_DRV_CMOS) += rtc-cmos.o
obj-$(CONFIG_RTC_DRV_DS1216) += rtc-ds1216.o
obj-$(CONFIG_RTC_DRV_DS1302) += rtc-ds1302.o
+obj-$(CONFIG_RTC_DRV_DS1305) += rtc-ds1305.o
obj-$(CONFIG_RTC_DRV_DS1307) += rtc-ds1307.o
obj-$(CONFIG_RTC_DRV_DS1374) += rtc-ds1374.o
obj-$(CONFIG_RTC_DRV_DS1511) += rtc-ds1511.o
obj-$(CONFIG_RTC_DRV_FM3130) += rtc-fm3130.o
obj-$(CONFIG_RTC_DRV_ISL1208) += rtc-isl1208.o
obj-$(CONFIG_RTC_DRV_M41T80) += rtc-m41t80.o
+obj-$(CONFIG_RTC_DRV_M41T94) += rtc-m41t94.o
obj-$(CONFIG_RTC_DRV_M48T59) += rtc-m48t59.o
obj-$(CONFIG_RTC_DRV_M48T86) += rtc-m48t86.o
obj-$(CONFIG_RTC_DRV_MAX6900) += rtc-max6900.o
| BIN2BCD(tm.tm_mday) << 24
| AT91_RTC_DATEEN | AT91_RTC_MTHEN);
- if (alrm->enabled)
+ if (alrm->enabled) {
+ at91_sys_write(AT91_RTC_SCCR, AT91_RTC_ALARM);
at91_sys_write(AT91_RTC_IER, AT91_RTC_ALARM);
+ }
pr_debug("%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __func__,
at91_alarm_year, tm.tm_mon, tm.tm_mday, tm.tm_hour,
pr_debug("%s(): cmd=%08x, arg=%08lx.\n", __func__, cmd, arg);
+ /* important: scrub old status before enabling IRQs */
switch (cmd) {
case RTC_AIE_OFF: /* alarm off */
at91_sys_write(AT91_RTC_IDR, AT91_RTC_ALARM);
break;
case RTC_AIE_ON: /* alarm on */
+ at91_sys_write(AT91_RTC_SCCR, AT91_RTC_ALARM);
at91_sys_write(AT91_RTC_IER, AT91_RTC_ALARM);
break;
case RTC_UIE_OFF: /* update off */
- case RTC_PIE_OFF: /* periodic off */
at91_sys_write(AT91_RTC_IDR, AT91_RTC_SECEV);
break;
case RTC_UIE_ON: /* update on */
- case RTC_PIE_ON: /* periodic on */
+ at91_sys_write(AT91_RTC_SCCR, AT91_RTC_SECEV);
at91_sys_write(AT91_RTC_IER, AT91_RTC_SECEV);
break;
- case RTC_IRQP_READ: /* read periodic alarm frequency */
- ret = put_user(AT91_RTC_FREQ, (unsigned long *) arg);
- break;
- case RTC_IRQP_SET: /* set periodic alarm frequency */
- if (arg != AT91_RTC_FREQ)
- ret = -EINVAL;
- break;
default:
ret = -ENOIOCTLCMD;
break;
#include <linux/platform_device.h>
#include <linux/mod_devicetable.h>
-#ifdef CONFIG_HPET_EMULATE_RTC
-#include <asm/hpet.h>
-#endif
-
/* this is for "generic access to PC-style RTC" using CMOS_READ/CMOS_WRITE */
#include <asm-generic/rtc.h>
-#ifndef CONFIG_HPET_EMULATE_RTC
-#define is_hpet_enabled() 0
-#define hpet_set_alarm_time(hrs, min, sec) do { } while (0)
-#define hpet_set_periodic_freq(arg) 0
-#define hpet_mask_rtc_irq_bit(arg) do { } while (0)
-#define hpet_set_rtc_irq_bit(arg) do { } while (0)
-#define hpet_rtc_timer_init() do { } while (0)
-#define hpet_register_irq_handler(h) 0
-#define hpet_unregister_irq_handler(h) do { } while (0)
-extern irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id);
-#endif
-
struct cmos_rtc {
struct rtc_device *rtc;
struct device *dev;
/*----------------------------------------------------------------*/
+/* Much modern x86 hardware has HPETs (10+ MHz timers) which, because
+ * many BIOS programmers don't set up "sane mode" IRQ routing, are mostly
+ * used in a broken "legacy replacement" mode. The breakage includes
+ * HPET #1 hijacking the IRQ for this RTC, and being unavailable for
+ * other (better) use.
+ *
+ * When that broken mode is in use, platform glue provides a partial
+ * emulation of hardware RTC IRQ facilities using HPET #1. We don't
+ * want to use HPET for anything except those IRQs though...
+ */
+#ifdef CONFIG_HPET_EMULATE_RTC
+#include <asm/hpet.h>
+#else
+
+static inline int is_hpet_enabled(void)
+{
+ return 0;
+}
+
+static inline int hpet_mask_rtc_irq_bit(unsigned long mask)
+{
+ return 0;
+}
+
+static inline int hpet_set_rtc_irq_bit(unsigned long mask)
+{
+ return 0;
+}
+
+static inline int
+hpet_set_alarm_time(unsigned char hrs, unsigned char min, unsigned char sec)
+{
+ return 0;
+}
+
+static inline int hpet_set_periodic_freq(unsigned long freq)
+{
+ return 0;
+}
+
+static inline int hpet_rtc_dropped_irq(void)
+{
+ return 0;
+}
+
+static inline int hpet_rtc_timer_init(void)
+{
+ return 0;
+}
+
+extern irq_handler_t hpet_rtc_interrupt;
+
+static inline int hpet_register_irq_handler(irq_handler_t handler)
+{
+ return 0;
+}
+
+static inline int hpet_unregister_irq_handler(irq_handler_t handler)
+{
+ return 0;
+}
+
+#endif
+
+/*----------------------------------------------------------------*/
+
static int cmos_read_time(struct device *dev, struct rtc_time *t)
{
/* REVISIT: if the clock has a "century" register, use
return 0;
}
+static void cmos_checkintr(struct cmos_rtc *cmos, unsigned char rtc_control)
+{
+ unsigned char rtc_intr;
+
+ /* NOTE after changing RTC_xIE bits we always read INTR_FLAGS;
+ * allegedly some older rtcs need that to handle irqs properly
+ */
+ rtc_intr = CMOS_READ(RTC_INTR_FLAGS);
+
+ if (is_hpet_enabled())
+ return;
+
+ rtc_intr &= (rtc_control & RTC_IRQMASK) | RTC_IRQF;
+ if (is_intr(rtc_intr))
+ rtc_update_irq(cmos->rtc, 1, rtc_intr);
+}
+
+static void cmos_irq_enable(struct cmos_rtc *cmos, unsigned char mask)
+{
+ unsigned char rtc_control;
+
+ /* flush any pending IRQ status, notably for update irqs,
+ * before we enable new IRQs
+ */
+ rtc_control = CMOS_READ(RTC_CONTROL);
+ cmos_checkintr(cmos, rtc_control);
+
+ rtc_control |= mask;
+ CMOS_WRITE(rtc_control, RTC_CONTROL);
+ hpet_set_rtc_irq_bit(mask);
+
+ cmos_checkintr(cmos, rtc_control);
+}
+
+static void cmos_irq_disable(struct cmos_rtc *cmos, unsigned char mask)
+{
+ unsigned char rtc_control;
+
+ rtc_control = CMOS_READ(RTC_CONTROL);
+ rtc_control &= ~mask;
+ CMOS_WRITE(rtc_control, RTC_CONTROL);
+ hpet_mask_rtc_irq_bit(mask);
+
+ cmos_checkintr(cmos, rtc_control);
+}
+
static int cmos_set_alarm(struct device *dev, struct rtc_wkalrm *t)
{
struct cmos_rtc *cmos = dev_get_drvdata(dev);
unsigned char mon, mday, hrs, min, sec;
- unsigned char rtc_control, rtc_intr;
if (!is_valid_irq(cmos->irq))
return -EIO;
sec = t->time.tm_sec;
sec = (sec < 60) ? BIN2BCD(sec) : 0xff;
- hpet_set_alarm_time(t->time.tm_hour, t->time.tm_min, t->time.tm_sec);
spin_lock_irq(&rtc_lock);
/* next rtc irq must not be from previous alarm setting */
- rtc_control = CMOS_READ(RTC_CONTROL);
- rtc_control &= ~RTC_AIE;
- CMOS_WRITE(rtc_control, RTC_CONTROL);
- rtc_intr = CMOS_READ(RTC_INTR_FLAGS);
- rtc_intr &= (rtc_control & RTC_IRQMASK) | RTC_IRQF;
- if (is_intr(rtc_intr))
- rtc_update_irq(cmos->rtc, 1, rtc_intr);
+ cmos_irq_disable(cmos, RTC_AIE);
/* update alarm */
CMOS_WRITE(hrs, RTC_HOURS_ALARM);
CMOS_WRITE(mon, cmos->mon_alrm);
}
- if (t->enabled) {
- rtc_control |= RTC_AIE;
- CMOS_WRITE(rtc_control, RTC_CONTROL);
- rtc_intr = CMOS_READ(RTC_INTR_FLAGS);
- rtc_intr &= (rtc_control & RTC_IRQMASK) | RTC_IRQF;
- if (is_intr(rtc_intr))
- rtc_update_irq(cmos->rtc, 1, rtc_intr);
- }
+ /* FIXME the HPET alarm glue currently ignores day_alrm
+ * and mon_alrm ...
+ */
+ hpet_set_alarm_time(t->time.tm_hour, t->time.tm_min, t->time.tm_sec);
+
+ if (t->enabled)
+ cmos_irq_enable(cmos, RTC_AIE);
spin_unlock_irq(&rtc_lock);
f = 16 - f;
spin_lock_irqsave(&rtc_lock, flags);
- if (!hpet_set_periodic_freq(freq))
- CMOS_WRITE(RTC_REF_CLCK_32KHZ | f, RTC_FREQ_SELECT);
+ hpet_set_periodic_freq(freq);
+ CMOS_WRITE(RTC_REF_CLCK_32KHZ | f, RTC_FREQ_SELECT);
spin_unlock_irqrestore(&rtc_lock, flags);
return 0;
static int cmos_irq_set_state(struct device *dev, int enabled)
{
struct cmos_rtc *cmos = dev_get_drvdata(dev);
- unsigned char rtc_control, rtc_intr;
unsigned long flags;
if (!is_valid_irq(cmos->irq))
return -ENXIO;
spin_lock_irqsave(&rtc_lock, flags);
- rtc_control = CMOS_READ(RTC_CONTROL);
if (enabled)
- rtc_control |= RTC_PIE;
+ cmos_irq_enable(cmos, RTC_PIE);
else
- rtc_control &= ~RTC_PIE;
-
- CMOS_WRITE(rtc_control, RTC_CONTROL);
-
- rtc_intr = CMOS_READ(RTC_INTR_FLAGS);
- rtc_intr &= (rtc_control & RTC_IRQMASK) | RTC_IRQF;
- if (is_intr(rtc_intr))
- rtc_update_irq(cmos->rtc, 1, rtc_intr);
+ cmos_irq_disable(cmos, RTC_PIE);
spin_unlock_irqrestore(&rtc_lock, flags);
return 0;
cmos_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
{
struct cmos_rtc *cmos = dev_get_drvdata(dev);
- unsigned char rtc_control, rtc_intr;
unsigned long flags;
switch (cmd) {
case RTC_AIE_ON:
case RTC_UIE_OFF:
case RTC_UIE_ON:
- case RTC_PIE_OFF:
- case RTC_PIE_ON:
if (!is_valid_irq(cmos->irq))
return -EINVAL;
break;
+ /* PIE ON/OFF is handled by cmos_irq_set_state() */
default:
return -ENOIOCTLCMD;
}
spin_lock_irqsave(&rtc_lock, flags);
- rtc_control = CMOS_READ(RTC_CONTROL);
switch (cmd) {
case RTC_AIE_OFF: /* alarm off */
- rtc_control &= ~RTC_AIE;
- hpet_mask_rtc_irq_bit(RTC_AIE);
+ cmos_irq_disable(cmos, RTC_AIE);
break;
case RTC_AIE_ON: /* alarm on */
- rtc_control |= RTC_AIE;
- hpet_set_rtc_irq_bit(RTC_AIE);
+ cmos_irq_enable(cmos, RTC_AIE);
break;
case RTC_UIE_OFF: /* update off */
- rtc_control &= ~RTC_UIE;
- hpet_mask_rtc_irq_bit(RTC_UIE);
+ cmos_irq_disable(cmos, RTC_UIE);
break;
case RTC_UIE_ON: /* update on */
- rtc_control |= RTC_UIE;
- hpet_set_rtc_irq_bit(RTC_UIE);
- break;
- case RTC_PIE_OFF: /* periodic off */
- rtc_control &= ~RTC_PIE;
- hpet_mask_rtc_irq_bit(RTC_PIE);
- break;
- case RTC_PIE_ON: /* periodic on */
- rtc_control |= RTC_PIE;
- hpet_set_rtc_irq_bit(RTC_PIE);
+ cmos_irq_enable(cmos, RTC_UIE);
break;
}
- if (!is_hpet_enabled())
- CMOS_WRITE(rtc_control, RTC_CONTROL);
-
- rtc_intr = CMOS_READ(RTC_INTR_FLAGS);
- rtc_intr &= (rtc_control & RTC_IRQMASK) | RTC_IRQF;
- if (is_intr(rtc_intr))
- rtc_update_irq(cmos->rtc, 1, rtc_intr);
-
spin_unlock_irqrestore(&rtc_lock, flags);
return 0;
}
u8 rtc_control;
spin_lock(&rtc_lock);
- /*
- * In this case it is HPET RTC interrupt handler
- * calling us, with the interrupt information
- * passed as arg1, instead of irq.
+
+ /* When the HPET interrupt handler calls us, the interrupt
+ * status is passed as arg1 instead of the irq number. But
+ * always clear irq status, even when HPET is in the way.
+ *
+ * Note that HPET and RTC are almost certainly out of phase,
+ * giving different IRQ status ...
*/
+ irqstat = CMOS_READ(RTC_INTR_FLAGS);
+ rtc_control = CMOS_READ(RTC_CONTROL);
if (is_hpet_enabled())
irqstat = (unsigned long)irq & 0xF0;
- else {
- irqstat = CMOS_READ(RTC_INTR_FLAGS);
- rtc_control = CMOS_READ(RTC_CONTROL);
- irqstat &= (rtc_control & RTC_IRQMASK) | RTC_IRQF;
- }
+ irqstat &= (rtc_control & RTC_IRQMASK) | RTC_IRQF;
/* All Linux RTC alarms should be treated as if they were oneshot.
* Similar code may be needed in system wakeup paths, in case the
* alarm woke the system.
*/
if (irqstat & RTC_AIE) {
- rtc_control = CMOS_READ(RTC_CONTROL);
rtc_control &= ~RTC_AIE;
CMOS_WRITE(rtc_control, RTC_CONTROL);
+ hpet_mask_rtc_irq_bit(RTC_AIE);
+
CMOS_READ(RTC_INTR_FLAGS);
}
spin_unlock(&rtc_lock);
* do something about other clock frequencies.
*/
cmos_rtc.rtc->irq_freq = 1024;
- if (!hpet_set_periodic_freq(cmos_rtc.rtc->irq_freq))
- CMOS_WRITE(RTC_REF_CLCK_32KHZ | 0x06, RTC_FREQ_SELECT);
+ hpet_set_periodic_freq(cmos_rtc.rtc->irq_freq);
+ CMOS_WRITE(RTC_REF_CLCK_32KHZ | 0x06, RTC_FREQ_SELECT);
+
+ /* disable irqs */
+ cmos_irq_disable(&cmos_rtc, RTC_PIE | RTC_AIE | RTC_UIE);
- /* disable irqs.
- *
- * NOTE after changing RTC_xIE bits we always read INTR_FLAGS;
- * allegedly some older rtcs need that to handle irqs properly
- */
rtc_control = CMOS_READ(RTC_CONTROL);
- rtc_control &= ~(RTC_PIE | RTC_AIE | RTC_UIE);
- CMOS_WRITE(rtc_control, RTC_CONTROL);
- CMOS_READ(RTC_INTR_FLAGS);
spin_unlock_irq(&rtc_lock);
goto cleanup2;
}
- pr_info("%s: alarms up to one %s%s\n",
+ pr_info("%s: alarms up to one %s%s%s\n",
cmos_rtc.rtc->dev.bus_id,
is_valid_irq(rtc_irq)
? (cmos_rtc.mon_alrm
: (cmos_rtc.day_alrm
? "month" : "day"))
: "no",
- cmos_rtc.century ? ", y3k" : ""
- );
+ cmos_rtc.century ? ", y3k" : "",
+ is_hpet_enabled() ? ", hpet irqs" : "");
return 0;
static void cmos_do_shutdown(void)
{
- unsigned char rtc_control;
-
spin_lock_irq(&rtc_lock);
- rtc_control = CMOS_READ(RTC_CONTROL);
- rtc_control &= ~(RTC_PIE|RTC_AIE|RTC_UIE);
- CMOS_WRITE(rtc_control, RTC_CONTROL);
- CMOS_READ(RTC_INTR_FLAGS);
+ cmos_irq_disable(&cmos_rtc, RTC_IRQMASK);
spin_unlock_irq(&rtc_lock);
}
spin_lock_irq(&rtc_lock);
cmos->suspend_ctrl = tmp = CMOS_READ(RTC_CONTROL);
if (tmp & (RTC_PIE|RTC_AIE|RTC_UIE)) {
- unsigned char irqstat;
+ unsigned char mask;
if (do_wake)
- tmp &= ~(RTC_PIE|RTC_UIE);
+ mask = RTC_IRQMASK & ~RTC_AIE;
else
- tmp &= ~(RTC_PIE|RTC_AIE|RTC_UIE);
+ mask = RTC_IRQMASK;
+ tmp &= ~mask;
CMOS_WRITE(tmp, RTC_CONTROL);
- irqstat = CMOS_READ(RTC_INTR_FLAGS);
- irqstat &= (tmp & RTC_IRQMASK) | RTC_IRQF;
- if (is_intr(irqstat))
- rtc_update_irq(cmos->rtc, 1, irqstat);
+ hpet_mask_rtc_irq_bit(mask);
+
+ cmos_checkintr(cmos, tmp);
}
spin_unlock_irq(&rtc_lock);
unsigned char tmp = cmos->suspend_ctrl;
/* re-enable any irqs previously active */
- if (tmp & (RTC_PIE|RTC_AIE|RTC_UIE)) {
+ if (tmp & RTC_IRQMASK) {
+ unsigned char mask;
if (cmos->enabled_wake) {
if (cmos->wake_off)
}
spin_lock_irq(&rtc_lock);
- CMOS_WRITE(tmp, RTC_CONTROL);
- tmp = CMOS_READ(RTC_INTR_FLAGS);
- tmp &= (cmos->suspend_ctrl & RTC_IRQMASK) | RTC_IRQF;
- if (is_intr(tmp))
- rtc_update_irq(cmos->rtc, 1, tmp);
+ do {
+ CMOS_WRITE(tmp, RTC_CONTROL);
+ hpet_set_rtc_irq_bit(tmp & RTC_IRQMASK);
+
+ mask = CMOS_READ(RTC_INTR_FLAGS);
+ mask &= (tmp & RTC_IRQMASK) | RTC_IRQF;
+ if (!is_hpet_enabled() || !is_intr(mask))
+ break;
+
+ /* force one-shot behavior if HPET blocked
+ * the wake alarm's irq
+ */
+ rtc_update_irq(cmos->rtc, 1, mask);
+ tmp &= ~RTC_AIE;
+ hpet_mask_rtc_irq_bit(RTC_AIE);
+ } while (mask & RTC_AIE);
spin_unlock_irq(&rtc_lock);
}
pr_debug("%s: resume, ctrl %02x\n",
cmos_rtc.rtc->dev.bus_id,
- cmos->suspend_ctrl);
-
+ tmp);
return 0;
}
return (data != 0) ? (POLLIN | POLLRDNORM) : 0;
}
-static int rtc_dev_ioctl(struct inode *inode, struct file *file,
+static long rtc_dev_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
int err = 0;
struct rtc_wkalrm alarm;
void __user *uarg = (void __user *) arg;
+ err = mutex_lock_interruptible(&rtc->ops_lock);
+ if (err)
+ return -EBUSY;
+
/* check that the calling task has appropriate permissions
* for certain ioctls. doing this check here is useful
* to avoid duplicate code in each driver.
case RTC_EPOCH_SET:
case RTC_SET_TIME:
if (!capable(CAP_SYS_TIME))
- return -EACCES;
+ err = -EACCES;
break;
case RTC_IRQP_SET:
if (arg > rtc->max_user_freq && !capable(CAP_SYS_RESOURCE))
- return -EACCES;
+ err = -EACCES;
break;
case RTC_PIE_ON:
if (rtc->irq_freq > rtc->max_user_freq &&
!capable(CAP_SYS_RESOURCE))
- return -EACCES;
+ err = -EACCES;
break;
}
+ if (err)
+ goto done;
+
/* try the driver's ioctl interface */
if (ops->ioctl) {
err = ops->ioctl(rtc->dev.parent, cmd, arg);
- if (err != -ENOIOCTLCMD)
+ if (err != -ENOIOCTLCMD) {
+ mutex_unlock(&rtc->ops_lock);
return err;
+ }
}
/* if the driver does not provide the ioctl interface
switch (cmd) {
case RTC_ALM_READ:
+ mutex_unlock(&rtc->ops_lock);
+
err = rtc_read_alarm(rtc, &alarm);
if (err < 0)
return err;
if (copy_to_user(uarg, &alarm.time, sizeof(tm)))
- return -EFAULT;
- break;
+ err = -EFAULT;
+ return err;
case RTC_ALM_SET:
+ mutex_unlock(&rtc->ops_lock);
+
if (copy_from_user(&alarm.time, uarg, sizeof(tm)))
return -EFAULT;
}
}
- err = rtc_set_alarm(rtc, &alarm);
- break;
+ return rtc_set_alarm(rtc, &alarm);
case RTC_RD_TIME:
+ mutex_unlock(&rtc->ops_lock);
+
err = rtc_read_time(rtc, &tm);
if (err < 0)
return err;
if (copy_to_user(uarg, &tm, sizeof(tm)))
- return -EFAULT;
- break;
+ err = -EFAULT;
+ return err;
case RTC_SET_TIME:
+ mutex_unlock(&rtc->ops_lock);
+
if (copy_from_user(&tm, uarg, sizeof(tm)))
return -EFAULT;
- err = rtc_set_time(rtc, &tm);
- break;
+ return rtc_set_time(rtc, &tm);
case RTC_PIE_ON:
err = rtc_irq_set_state(rtc, NULL, 1);
break;
#endif
case RTC_WKALM_SET:
+ mutex_unlock(&rtc->ops_lock);
if (copy_from_user(&alarm, uarg, sizeof(alarm)))
return -EFAULT;
- err = rtc_set_alarm(rtc, &alarm);
- break;
+ return rtc_set_alarm(rtc, &alarm);
case RTC_WKALM_RD:
+ mutex_unlock(&rtc->ops_lock);
err = rtc_read_alarm(rtc, &alarm);
if (err < 0)
return err;
if (copy_to_user(uarg, &alarm, sizeof(alarm)))
- return -EFAULT;
- break;
+ err = -EFAULT;
+ return err;
#ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL
case RTC_UIE_OFF:
clear_uie(rtc);
- return 0;
+ break;
case RTC_UIE_ON:
- return set_uie(rtc);
+ err = set_uie(rtc);
#endif
default:
err = -ENOTTY;
break;
}
+done:
+ mutex_unlock(&rtc->ops_lock);
return err;
}
.llseek = no_llseek,
.read = rtc_dev_read,
.poll = rtc_dev_poll,
- .ioctl = rtc_dev_ioctl,
+ .unlocked_ioctl = rtc_dev_ioctl,
.open = rtc_dev_open,
.release = rtc_dev_release,
.fasync = rtc_dev_fasync,
--- /dev/null
+/*
+ * rtc-ds1305.c -- driver for DS1305 and DS1306 SPI RTC chips
+ *
+ * Copyright (C) 2008 David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/bcd.h>
+#include <linux/rtc.h>
+#include <linux/workqueue.h>
+
+#include <linux/spi/spi.h>
+#include <linux/spi/ds1305.h>
+
+
+/*
+ * Registers ... mask DS1305_WRITE into register address to write,
+ * otherwise you're reading it. All non-bitmask values are BCD.
+ */
+#define DS1305_WRITE 0x80
+
+
+/* RTC date/time ... the main special cases are that we:
+ * - Need fancy "hours" encoding in 12hour mode
+ * - Don't rely on the "day-of-week" field (or tm_wday)
+ * - Are a 21st-century clock (2000 <= year < 2100)
+ */
+#define DS1305_RTC_LEN 7 /* bytes for RTC regs */
+
+#define DS1305_SEC 0x00 /* register addresses */
+#define DS1305_MIN 0x01
+#define DS1305_HOUR 0x02
+# define DS1305_HR_12 0x40 /* set == 12 hr mode */
+# define DS1305_HR_PM 0x20 /* set == PM (12hr mode) */
+#define DS1305_WDAY 0x03
+#define DS1305_MDAY 0x04
+#define DS1305_MON 0x05
+#define DS1305_YEAR 0x06
+
+
+/* The two alarms have only sec/min/hour/wday fields (ALM_LEN).
+ * DS1305_ALM_DISABLE disables a match field (some combos are bad).
+ *
+ * NOTE that since we don't use WDAY, we limit ourselves to alarms
+ * only one day into the future (vs potentially up to a week).
+ *
+ * NOTE ALSO that while we could generate once-a-second IRQs (UIE), we
+ * don't currently support them. We'd either need to do it only when
+ * no alarm is pending (not the standard model), or to use the second
+ * alarm (implying that this is a DS1305 not DS1306, *and* that either
+ * it's wired up a second IRQ we know, or that INTCN is set)
+ */
+#define DS1305_ALM_LEN 4 /* bytes for ALM regs */
+#define DS1305_ALM_DISABLE 0x80
+
+#define DS1305_ALM0(r) (0x07 + (r)) /* register addresses */
+#define DS1305_ALM1(r) (0x0b + (r))
+
+
+/* three control registers */
+#define DS1305_CONTROL_LEN 3 /* bytes of control regs */
+
+#define DS1305_CONTROL 0x0f /* register addresses */
+# define DS1305_nEOSC 0x80 /* low enables oscillator */
+# define DS1305_WP 0x40 /* write protect */
+# define DS1305_INTCN 0x04 /* clear == only int0 used */
+# define DS1306_1HZ 0x04 /* enable 1Hz output */
+# define DS1305_AEI1 0x02 /* enable ALM1 IRQ */
+# define DS1305_AEI0 0x01 /* enable ALM0 IRQ */
+#define DS1305_STATUS 0x10
+/* status has just AEIx bits, mirrored as IRQFx */
+#define DS1305_TRICKLE 0x11
+/* trickle bits are defined in <linux/spi/ds1305.h> */
+
+/* a bunch of NVRAM */
+#define DS1305_NVRAM_LEN 96 /* bytes of NVRAM */
+
+#define DS1305_NVRAM 0x20 /* register addresses */
+
+
+struct ds1305 {
+ struct spi_device *spi;
+ struct rtc_device *rtc;
+
+ struct work_struct work;
+
+ unsigned long flags;
+#define FLAG_EXITING 0
+
+ bool hr12;
+ u8 ctrl[DS1305_CONTROL_LEN];
+};
+
+
+/*----------------------------------------------------------------------*/
+
+/*
+ * Utilities ... tolerate 12-hour AM/PM notation in case of non-Linux
+ * software (like a bootloader) which may require it.
+ */
+
+static unsigned bcd2hour(u8 bcd)
+{
+ if (bcd & DS1305_HR_12) {
+ unsigned hour = 0;
+
+ bcd &= ~DS1305_HR_12;
+ if (bcd & DS1305_HR_PM) {
+ hour = 12;
+ bcd &= ~DS1305_HR_PM;
+ }
+ hour += BCD2BIN(bcd);
+ return hour - 1;
+ }
+ return BCD2BIN(bcd);
+}
+
+static u8 hour2bcd(bool hr12, int hour)
+{
+ if (hr12) {
+ hour++;
+ if (hour <= 12)
+ return DS1305_HR_12 | BIN2BCD(hour);
+ hour -= 12;
+ return DS1305_HR_12 | DS1305_HR_PM | BIN2BCD(hour);
+ }
+ return BIN2BCD(hour);
+}
+
+/*----------------------------------------------------------------------*/
+
+/*
+ * Interface to RTC framework
+ */
+
+#ifdef CONFIG_RTC_INTF_DEV
+
+/*
+ * Context: caller holds rtc->ops_lock (to protect ds1305->ctrl)
+ */
+static int ds1305_ioctl(struct device *dev, unsigned cmd, unsigned long arg)
+{
+ struct ds1305 *ds1305 = dev_get_drvdata(dev);
+ u8 buf[2];
+ int status = -ENOIOCTLCMD;
+
+ buf[0] = DS1305_WRITE | DS1305_CONTROL;
+ buf[1] = ds1305->ctrl[0];
+
+ switch (cmd) {
+ case RTC_AIE_OFF:
+ status = 0;
+ if (!(buf[1] & DS1305_AEI0))
+ goto done;
+ buf[1] &= ~DS1305_AEI0;
+ break;
+
+ case RTC_AIE_ON:
+ status = 0;
+ if (ds1305->ctrl[0] & DS1305_AEI0)
+ goto done;
+ buf[1] |= DS1305_AEI0;
+ break;
+ }
+ if (status == 0) {
+ status = spi_write_then_read(ds1305->spi, buf, sizeof buf,
+ NULL, 0);
+ if (status >= 0)
+ ds1305->ctrl[0] = buf[1];
+ }
+
+done:
+ return status;
+}
+
+#else
+#define ds1305_ioctl NULL
+#endif
+
+/*
+ * Get/set of date and time is pretty normal.
+ */
+
+static int ds1305_get_time(struct device *dev, struct rtc_time *time)
+{
+ struct ds1305 *ds1305 = dev_get_drvdata(dev);
+ u8 addr = DS1305_SEC;
+ u8 buf[DS1305_RTC_LEN];
+ int status;
+
+ /* Use write-then-read to get all the date/time registers
+ * since dma from stack is nonportable
+ */
+ status = spi_write_then_read(ds1305->spi, &addr, sizeof addr,
+ buf, sizeof buf);
+ if (status < 0)
+ return status;
+
+ dev_vdbg(dev, "%s: %02x %02x %02x, %02x %02x %02x %02x\n",
+ "read", buf[0], buf[1], buf[2], buf[3],
+ buf[4], buf[5], buf[6]);
+
+ /* Decode the registers */
+ time->tm_sec = BCD2BIN(buf[DS1305_SEC]);
+ time->tm_min = BCD2BIN(buf[DS1305_MIN]);
+ time->tm_hour = bcd2hour(buf[DS1305_HOUR]);
+ time->tm_wday = buf[DS1305_WDAY] - 1;
+ time->tm_mday = BCD2BIN(buf[DS1305_MDAY]);
+ time->tm_mon = BCD2BIN(buf[DS1305_MON]) - 1;
+ time->tm_year = BCD2BIN(buf[DS1305_YEAR]) + 100;
+
+ dev_vdbg(dev, "%s secs=%d, mins=%d, "
+ "hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n",
+ "read", time->tm_sec, time->tm_min,
+ time->tm_hour, time->tm_mday,
+ time->tm_mon, time->tm_year, time->tm_wday);
+
+ /* Time may not be set */
+ return rtc_valid_tm(time);
+}
+
+static int ds1305_set_time(struct device *dev, struct rtc_time *time)
+{
+ struct ds1305 *ds1305 = dev_get_drvdata(dev);
+ u8 buf[1 + DS1305_RTC_LEN];
+ u8 *bp = buf;
+
+ dev_vdbg(dev, "%s secs=%d, mins=%d, "
+ "hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n",
+ "write", time->tm_sec, time->tm_min,
+ time->tm_hour, time->tm_mday,
+ time->tm_mon, time->tm_year, time->tm_wday);
+
+ /* Write registers starting at the first time/date address. */
+ *bp++ = DS1305_WRITE | DS1305_SEC;
+
+ *bp++ = BIN2BCD(time->tm_sec);
+ *bp++ = BIN2BCD(time->tm_min);
+ *bp++ = hour2bcd(ds1305->hr12, time->tm_hour);
+ *bp++ = (time->tm_wday < 7) ? (time->tm_wday + 1) : 1;
+ *bp++ = BIN2BCD(time->tm_mday);
+ *bp++ = BIN2BCD(time->tm_mon + 1);
+ *bp++ = BIN2BCD(time->tm_year - 100);
+
+ dev_dbg(dev, "%s: %02x %02x %02x, %02x %02x %02x %02x\n",
+ "write", buf[1], buf[2], buf[3],
+ buf[4], buf[5], buf[6], buf[7]);
+
+ /* use write-then-read since dma from stack is nonportable */
+ return spi_write_then_read(ds1305->spi, buf, sizeof buf,
+ NULL, 0);
+}
+
+/*
+ * Get/set of alarm is a bit funky:
+ *
+ * - First there's the inherent raciness of getting the (partitioned)
+ * status of an alarm that could trigger while we're reading parts
+ * of that status.
+ *
+ * - Second there's its limited range (we could increase it a bit by
+ * relying on WDAY), which means it will easily roll over.
+ *
+ * - Third there's the choice of two alarms and alarm signals.
+ * Here we use ALM0 and expect that nINT0 (open drain) is used;
+ * that's the only real option for DS1306 runtime alarms, and is
+ * natural on DS1305.
+ *
+ * - Fourth, there's also ALM1, and a second interrupt signal:
+ * + On DS1305 ALM1 uses nINT1 (when INTCN=1) else nINT0;
+ * + On DS1306 ALM1 only uses INT1 (an active high pulse)
+ * and it won't work when VCC1 is active.
+ *
+ * So to be most general, we should probably set both alarms to the
+ * same value, letting ALM1 be the wakeup event source on DS1306
+ * and handling several wiring options on DS1305.
+ *
+ * - Fifth, we support the polled mode (as well as possible; why not?)
+ * even when no interrupt line is wired to an IRQ.
+ */
+
+/*
+ * Context: caller holds rtc->ops_lock (to protect ds1305->ctrl)
+ */
+static int ds1305_get_alarm(struct device *dev, struct rtc_wkalrm *alm)
+{
+ struct ds1305 *ds1305 = dev_get_drvdata(dev);
+ struct spi_device *spi = ds1305->spi;
+ u8 addr;
+ int status;
+ u8 buf[DS1305_ALM_LEN];
+
+ /* Refresh control register cache BEFORE reading ALM0 registers,
+ * since reading alarm registers acks any pending IRQ. That
+ * makes returning "pending" status a bit of a lie, but that bit
+ * of EFI status is at best fragile anyway (given IRQ handlers).
+ */
+ addr = DS1305_CONTROL;
+ status = spi_write_then_read(spi, &addr, sizeof addr,
+ ds1305->ctrl, sizeof ds1305->ctrl);
+ if (status < 0)
+ return status;
+
+ alm->enabled = !!(ds1305->ctrl[0] & DS1305_AEI0);
+ alm->pending = !!(ds1305->ctrl[1] & DS1305_AEI0);
+
+ /* get and check ALM0 registers */
+ addr = DS1305_ALM0(DS1305_SEC);
+ status = spi_write_then_read(spi, &addr, sizeof addr,
+ buf, sizeof buf);
+ if (status < 0)
+ return status;
+
+ dev_vdbg(dev, "%s: %02x %02x %02x %02x\n",
+ "alm0 read", buf[DS1305_SEC], buf[DS1305_MIN],
+ buf[DS1305_HOUR], buf[DS1305_WDAY]);
+
+ if ((DS1305_ALM_DISABLE & buf[DS1305_SEC])
+ || (DS1305_ALM_DISABLE & buf[DS1305_MIN])
+ || (DS1305_ALM_DISABLE & buf[DS1305_HOUR]))
+ return -EIO;
+
+ /* Stuff these values into alm->time and let RTC framework code
+ * fill in the rest ... and also handle rollover to tomorrow when
+ * that's needed.
+ */
+ alm->time.tm_sec = BCD2BIN(buf[DS1305_SEC]);
+ alm->time.tm_min = BCD2BIN(buf[DS1305_MIN]);
+ alm->time.tm_hour = bcd2hour(buf[DS1305_HOUR]);
+ alm->time.tm_mday = -1;
+ alm->time.tm_mon = -1;
+ alm->time.tm_year = -1;
+ /* next three fields are unused by Linux */
+ alm->time.tm_wday = -1;
+ alm->time.tm_mday = -1;
+ alm->time.tm_isdst = -1;
+
+ return 0;
+}
+
+/*
+ * Context: caller holds rtc->ops_lock (to protect ds1305->ctrl)
+ */
+static int ds1305_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
+{
+ struct ds1305 *ds1305 = dev_get_drvdata(dev);
+ struct spi_device *spi = ds1305->spi;
+ unsigned long now, later;
+ struct rtc_time tm;
+ int status;
+ u8 buf[1 + DS1305_ALM_LEN];
+
+ /* convert desired alarm to time_t */
+ status = rtc_tm_to_time(&alm->time, &later);
+ if (status < 0)
+ return status;
+
+ /* Read current time as time_t */
+ status = ds1305_get_time(dev, &tm);
+ if (status < 0)
+ return status;
+ status = rtc_tm_to_time(&tm, &now);
+ if (status < 0)
+ return status;
+
+ /* make sure alarm fires within the next 24 hours */
+ if (later <= now)
+ return -EINVAL;
+ if ((later - now) > 24 * 60 * 60)
+ return -EDOM;
+
+ /* disable alarm if needed */
+ if (ds1305->ctrl[0] & DS1305_AEI0) {
+ ds1305->ctrl[0] &= ~DS1305_AEI0;
+
+ buf[0] = DS1305_WRITE | DS1305_CONTROL;
+ buf[1] = ds1305->ctrl[0];
+ status = spi_write_then_read(ds1305->spi, buf, 2, NULL, 0);
+ if (status < 0)
+ return status;
+ }
+
+ /* write alarm */
+ buf[0] = DS1305_WRITE | DS1305_ALM0(DS1305_SEC);
+ buf[1 + DS1305_SEC] = BIN2BCD(alm->time.tm_sec);
+ buf[1 + DS1305_MIN] = BIN2BCD(alm->time.tm_min);
+ buf[1 + DS1305_HOUR] = hour2bcd(ds1305->hr12, alm->time.tm_hour);
+ buf[1 + DS1305_WDAY] = DS1305_ALM_DISABLE;
+
+ dev_dbg(dev, "%s: %02x %02x %02x %02x\n",
+ "alm0 write", buf[1 + DS1305_SEC], buf[1 + DS1305_MIN],
+ buf[1 + DS1305_HOUR], buf[1 + DS1305_WDAY]);
+
+ status = spi_write_then_read(spi, buf, sizeof buf, NULL, 0);
+ if (status < 0)
+ return status;
+
+ /* enable alarm if requested */
+ if (alm->enabled) {
+ ds1305->ctrl[0] |= DS1305_AEI0;
+
+ buf[0] = DS1305_WRITE | DS1305_CONTROL;
+ buf[1] = ds1305->ctrl[0];
+ status = spi_write_then_read(ds1305->spi, buf, 2, NULL, 0);
+ }
+
+ return status;
+}
+
+#ifdef CONFIG_PROC_FS
+
+static int ds1305_proc(struct device *dev, struct seq_file *seq)
+{
+ struct ds1305 *ds1305 = dev_get_drvdata(dev);
+ char *diodes = "no";
+ char *resistors = "";
+
+ /* ctrl[2] is treated as read-only; no locking needed */
+ if ((ds1305->ctrl[2] & 0xf0) == DS1305_TRICKLE_MAGIC) {
+ switch (ds1305->ctrl[2] & 0x0c) {
+ case DS1305_TRICKLE_DS2:
+ diodes = "2 diodes, ";
+ break;
+ case DS1305_TRICKLE_DS1:
+ diodes = "1 diode, ";
+ break;
+ default:
+ goto done;
+ }
+ switch (ds1305->ctrl[2] & 0x03) {
+ case DS1305_TRICKLE_2K:
+ resistors = "2k Ohm";
+ break;
+ case DS1305_TRICKLE_4K:
+ resistors = "4k Ohm";
+ break;
+ case DS1305_TRICKLE_8K:
+ resistors = "8k Ohm";
+ break;
+ default:
+ diodes = "no";
+ break;
+ }
+ }
+
+done:
+ return seq_printf(seq,
+ "trickle_charge\t: %s%s\n",
+ diodes, resistors);
+}
+
+#else
+#define ds1305_proc NULL
+#endif
+
+static const struct rtc_class_ops ds1305_ops = {
+ .ioctl = ds1305_ioctl,
+ .read_time = ds1305_get_time,
+ .set_time = ds1305_set_time,
+ .read_alarm = ds1305_get_alarm,
+ .set_alarm = ds1305_set_alarm,
+ .proc = ds1305_proc,
+};
+
+static void ds1305_work(struct work_struct *work)
+{
+ struct ds1305 *ds1305 = container_of(work, struct ds1305, work);
+ struct mutex *lock = &ds1305->rtc->ops_lock;
+ struct spi_device *spi = ds1305->spi;
+ u8 buf[3];
+ int status;
+
+ /* lock to protect ds1305->ctrl */
+ mutex_lock(lock);
+
+ /* Disable the IRQ, and clear its status ... for now, we "know"
+ * that if more than one alarm is active, they're in sync.
+ * Note that reading ALM data registers also clears IRQ status.
+ */
+ ds1305->ctrl[0] &= ~(DS1305_AEI1 | DS1305_AEI0);
+ ds1305->ctrl[1] = 0;
+
+ buf[0] = DS1305_WRITE | DS1305_CONTROL;
+ buf[1] = ds1305->ctrl[0];
+ buf[2] = 0;
+
+ status = spi_write_then_read(spi, buf, sizeof buf,
+ NULL, 0);
+ if (status < 0)
+ dev_dbg(&spi->dev, "clear irq --> %d\n", status);
+
+ mutex_unlock(lock);
+
+ if (!test_bit(FLAG_EXITING, &ds1305->flags))
+ enable_irq(spi->irq);
+
+ /* rtc_update_irq() requires an IRQ-disabled context */
+ local_irq_disable();
+ rtc_update_irq(ds1305->rtc, 1, RTC_AF | RTC_IRQF);
+ local_irq_enable();
+}
+
+/*
+ * This "real" IRQ handler hands off to a workqueue mostly to allow
+ * mutex locking for ds1305->ctrl ... unlike I2C, we could issue async
+ * I/O requests in IRQ context (to clear the IRQ status).
+ */
+static irqreturn_t ds1305_irq(int irq, void *p)
+{
+ struct ds1305 *ds1305 = p;
+
+ disable_irq(irq);
+ schedule_work(&ds1305->work);
+ return IRQ_HANDLED;
+}
+
+/*----------------------------------------------------------------------*/
+
+/*
+ * Interface for NVRAM
+ */
+
+static void msg_init(struct spi_message *m, struct spi_transfer *x,
+ u8 *addr, size_t count, char *tx, char *rx)
+{
+ spi_message_init(m);
+ memset(x, 0, 2 * sizeof(*x));
+
+ x->tx_buf = addr;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+
+ x->tx_buf = tx;
+ x->rx_buf = rx;
+ x->len = count;
+ spi_message_add_tail(x, m);
+}
+
+static ssize_t
+ds1305_nvram_read(struct kobject *kobj, struct bin_attribute *attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct spi_device *spi;
+ u8 addr;
+ struct spi_message m;
+ struct spi_transfer x[2];
+ int status;
+
+ spi = container_of(kobj, struct spi_device, dev.kobj);
+
+ if (unlikely(off >= DS1305_NVRAM_LEN))
+ return 0;
+ if (count >= DS1305_NVRAM_LEN)
+ count = DS1305_NVRAM_LEN;
+ if ((off + count) > DS1305_NVRAM_LEN)
+ count = DS1305_NVRAM_LEN - off;
+ if (unlikely(!count))
+ return count;
+
+ addr = DS1305_NVRAM + off;
+ msg_init(&m, x, &addr, count, NULL, buf);
+
+ status = spi_sync(spi, &m);
+ if (status < 0)
+ dev_err(&spi->dev, "nvram %s error %d\n", "read", status);
+ return (status < 0) ? status : count;
+}
+
+static ssize_t
+ds1305_nvram_write(struct kobject *kobj, struct bin_attribute *attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct spi_device *spi;
+ u8 addr;
+ struct spi_message m;
+ struct spi_transfer x[2];
+ int status;
+
+ spi = container_of(kobj, struct spi_device, dev.kobj);
+
+ if (unlikely(off >= DS1305_NVRAM_LEN))
+ return -EFBIG;
+ if (count >= DS1305_NVRAM_LEN)
+ count = DS1305_NVRAM_LEN;
+ if ((off + count) > DS1305_NVRAM_LEN)
+ count = DS1305_NVRAM_LEN - off;
+ if (unlikely(!count))
+ return count;
+
+ addr = (DS1305_WRITE | DS1305_NVRAM) + off;
+ msg_init(&m, x, &addr, count, buf, NULL);
+
+ status = spi_sync(spi, &m);
+ if (status < 0)
+ dev_err(&spi->dev, "nvram %s error %d\n", "write", status);
+ return (status < 0) ? status : count;
+}
+
+static struct bin_attribute nvram = {
+ .attr.name = "nvram",
+ .attr.mode = S_IRUGO | S_IWUSR,
+ .attr.owner = THIS_MODULE,
+ .read = ds1305_nvram_read,
+ .write = ds1305_nvram_write,
+ .size = DS1305_NVRAM_LEN,
+};
+
+/*----------------------------------------------------------------------*/
+
+/*
+ * Interface to SPI stack
+ */
+
+static int __devinit ds1305_probe(struct spi_device *spi)
+{
+ struct ds1305 *ds1305;
+ struct rtc_device *rtc;
+ int status;
+ u8 addr, value;
+ struct ds1305_platform_data *pdata = spi->dev.platform_data;
+ bool write_ctrl = false;
+
+ /* Sanity check board setup data. This may be hooked up
+ * in 3wire mode, but we don't care. Note that unless
+ * there's an inverter in place, this needs SPI_CS_HIGH!
+ */
+ if ((spi->bits_per_word && spi->bits_per_word != 8)
+ || (spi->max_speed_hz > 2000000)
+ || !(spi->mode & SPI_CPHA))
+ return -EINVAL;
+
+ /* set up driver data */
+ ds1305 = kzalloc(sizeof *ds1305, GFP_KERNEL);
+ if (!ds1305)
+ return -ENOMEM;
+ ds1305->spi = spi;
+ spi_set_drvdata(spi, ds1305);
+
+ /* read and cache control registers */
+ addr = DS1305_CONTROL;
+ status = spi_write_then_read(spi, &addr, sizeof addr,
+ ds1305->ctrl, sizeof ds1305->ctrl);
+ if (status < 0) {
+ dev_dbg(&spi->dev, "can't %s, %d\n",
+ "read", status);
+ goto fail0;
+ }
+
+ dev_dbg(&spi->dev, "ctrl %s: %02x %02x %02x\n",
+ "read", ds1305->ctrl[0],
+ ds1305->ctrl[1], ds1305->ctrl[2]);
+
+ /* Sanity check register values ... partially compensating for the
+ * fact that SPI has no device handshake. A pullup on MISO would
+ * make these tests fail; but not all systems will have one. If
+ * some register is neither 0x00 nor 0xff, a chip is likely there.
+ */
+ if ((ds1305->ctrl[0] & 0x38) != 0 || (ds1305->ctrl[1] & 0xfc) != 0) {
+ dev_dbg(&spi->dev, "RTC chip is not present\n");
+ status = -ENODEV;
+ goto fail0;
+ }
+ if (ds1305->ctrl[2] == 0)
+ dev_dbg(&spi->dev, "chip may not be present\n");
+
+ /* enable writes if needed ... if we were paranoid it would
+ * make sense to enable them only when absolutely necessary.
+ */
+ if (ds1305->ctrl[0] & DS1305_WP) {
+ u8 buf[2];
+
+ ds1305->ctrl[0] &= ~DS1305_WP;
+
+ buf[0] = DS1305_WRITE | DS1305_CONTROL;
+ buf[1] = ds1305->ctrl[0];
+ status = spi_write_then_read(spi, buf, sizeof buf, NULL, 0);
+
+ dev_dbg(&spi->dev, "clear WP --> %d\n", status);
+ if (status < 0)
+ goto fail0;
+ }
+
+ /* on DS1305, maybe start oscillator; like most low power
+ * oscillators, it may take a second to stabilize
+ */
+ if (ds1305->ctrl[0] & DS1305_nEOSC) {
+ ds1305->ctrl[0] &= ~DS1305_nEOSC;
+ write_ctrl = true;
+ dev_warn(&spi->dev, "SET TIME!\n");
+ }
+
+ /* ack any pending IRQs */
+ if (ds1305->ctrl[1]) {
+ ds1305->ctrl[1] = 0;
+ write_ctrl = true;
+ }
+
+ /* this may need one-time (re)init */
+ if (pdata) {
+ /* maybe enable trickle charge */
+ if (((ds1305->ctrl[2] & 0xf0) != DS1305_TRICKLE_MAGIC)) {
+ ds1305->ctrl[2] = DS1305_TRICKLE_MAGIC
+ | pdata->trickle;
+ write_ctrl = true;
+ }
+
+ /* on DS1306, configure 1 Hz signal */
+ if (pdata->is_ds1306) {
+ if (pdata->en_1hz) {
+ if (!(ds1305->ctrl[0] & DS1306_1HZ)) {
+ ds1305->ctrl[0] |= DS1306_1HZ;
+ write_ctrl = true;
+ }
+ } else {
+ if (ds1305->ctrl[0] & DS1306_1HZ) {
+ ds1305->ctrl[0] &= ~DS1306_1HZ;
+ write_ctrl = true;
+ }
+ }
+ }
+ }
+
+ if (write_ctrl) {
+ u8 buf[4];
+
+ buf[0] = DS1305_WRITE | DS1305_CONTROL;
+ buf[1] = ds1305->ctrl[0];
+ buf[2] = ds1305->ctrl[1];
+ buf[3] = ds1305->ctrl[2];
+ status = spi_write_then_read(spi, buf, sizeof buf, NULL, 0);
+ if (status < 0) {
+ dev_dbg(&spi->dev, "can't %s, %d\n",
+ "write", status);
+ goto fail0;
+ }
+
+ dev_dbg(&spi->dev, "ctrl %s: %02x %02x %02x\n",
+ "write", ds1305->ctrl[0],
+ ds1305->ctrl[1], ds1305->ctrl[2]);
+ }
+
+ /* see if non-Linux software set up AM/PM mode */
+ addr = DS1305_HOUR;
+ status = spi_write_then_read(spi, &addr, sizeof addr,
+ &value, sizeof value);
+ if (status < 0) {
+ dev_dbg(&spi->dev, "read HOUR --> %d\n", status);
+ goto fail0;
+ }
+
+ ds1305->hr12 = (DS1305_HR_12 & value) != 0;
+ if (ds1305->hr12)
+ dev_dbg(&spi->dev, "AM/PM\n");
+
+ /* register RTC ... from here on, ds1305->ctrl needs locking */
+ rtc = rtc_device_register("ds1305", &spi->dev,
+ &ds1305_ops, THIS_MODULE);
+ if (IS_ERR(rtc)) {
+ status = PTR_ERR(rtc);
+ dev_dbg(&spi->dev, "register rtc --> %d\n", status);
+ goto fail0;
+ }
+ ds1305->rtc = rtc;
+
+ /* Maybe set up alarm IRQ; be ready to handle it triggering right
+ * away. NOTE that we don't share this. The signal is active low,
+ * and we can't ack it before a SPI message delay. We temporarily
+ * disable the IRQ until it's acked, which lets us work with more
+ * IRQ trigger modes (not all IRQ controllers can do falling edge).
+ */
+ if (spi->irq) {
+ INIT_WORK(&ds1305->work, ds1305_work);
+ status = request_irq(spi->irq, ds1305_irq,
+ 0, dev_name(&rtc->dev), ds1305);
+ if (status < 0) {
+ dev_dbg(&spi->dev, "request_irq %d --> %d\n",
+ spi->irq, status);
+ goto fail1;
+ }
+ }
+
+ /* export NVRAM */
+ status = sysfs_create_bin_file(&spi->dev.kobj, &nvram);
+ if (status < 0) {
+ dev_dbg(&spi->dev, "register nvram --> %d\n", status);
+ goto fail2;
+ }
+
+ return 0;
+
+fail2:
+ free_irq(spi->irq, ds1305);
+fail1:
+ rtc_device_unregister(rtc);
+fail0:
+ kfree(ds1305);
+ return status;
+}
+
+static int __devexit ds1305_remove(struct spi_device *spi)
+{
+ struct ds1305 *ds1305 = spi_get_drvdata(spi);
+
+ sysfs_remove_bin_file(&spi->dev.kobj, &nvram);
+
+ /* carefully shut down irq and workqueue, if present */
+ if (spi->irq) {
+ set_bit(FLAG_EXITING, &ds1305->flags);
+ free_irq(spi->irq, ds1305);
+ flush_scheduled_work();
+ }
+
+ rtc_device_unregister(ds1305->rtc);
+ spi_set_drvdata(spi, NULL);
+ kfree(ds1305);
+ return 0;
+}
+
+static struct spi_driver ds1305_driver = {
+ .driver.name = "rtc-ds1305",
+ .driver.owner = THIS_MODULE,
+ .probe = ds1305_probe,
+ .remove = __devexit_p(ds1305_remove),
+ /* REVISIT add suspend/resume */
+};
+
+static int __init ds1305_init(void)
+{
+ return spi_register_driver(&ds1305_driver);
+}
+module_init(ds1305_init);
+
+static void __exit ds1305_exit(void)
+{
+ spi_unregister_driver(&ds1305_driver);
+}
+module_exit(ds1305_exit);
+
+MODULE_DESCRIPTION("RTC driver for DS1305 and DS1306 chips");
+MODULE_LICENSE("GPL");
*
*/
-#include <linux/module.h>
+#include <linux/bcd.h>
+#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/rtc.h>
#include <linux/slab.h>
#include <linux/smp_lock.h>
#include <linux/string.h>
-#include <linux/i2c.h>
-#include <linux/rtc.h>
-#include <linux/bcd.h>
#ifdef CONFIG_RTC_DRV_M41T80_WDT
-#include <linux/miscdevice.h>
-#include <linux/watchdog.h>
-#include <linux/reboot.h>
#include <linux/fs.h>
#include <linux/ioctl.h>
+#include <linux/miscdevice.h>
+#include <linux/reboot.h>
+#include <linux/watchdog.h>
#endif
#define M41T80_REG_SSEC 0
return -EFAULT;
if (rv & WDIOS_DISABLECARD) {
- printk(KERN_INFO
- "rtc-m41t80: disable watchdog\n");
+ pr_info("rtc-m41t80: disable watchdog\n");
wdt_disable();
}
if (rv & WDIOS_ENABLECARD) {
- printk(KERN_INFO
- "rtc-m41t80: enable watchdog\n");
+ pr_info("rtc-m41t80: enable watchdog\n");
wdt_ping();
}
--- /dev/null
+/*
+ * Driver for ST M41T94 SPI RTC
+ *
+ * Copyright (C) 2008 Kim B. Heino
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/rtc.h>
+#include <linux/spi/spi.h>
+#include <linux/bcd.h>
+
+#define M41T94_REG_SECONDS 0x01
+#define M41T94_REG_MINUTES 0x02
+#define M41T94_REG_HOURS 0x03
+#define M41T94_REG_WDAY 0x04
+#define M41T94_REG_DAY 0x05
+#define M41T94_REG_MONTH 0x06
+#define M41T94_REG_YEAR 0x07
+#define M41T94_REG_HT 0x0c
+
+#define M41T94_BIT_HALT 0x40
+#define M41T94_BIT_STOP 0x80
+#define M41T94_BIT_CB 0x40
+#define M41T94_BIT_CEB 0x80
+
+static int m41t94_set_time(struct device *dev, struct rtc_time *tm)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ u8 buf[8]; /* write cmd + 7 registers */
+
+ dev_dbg(dev, "%s secs=%d, mins=%d, "
+ "hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n",
+ "write", tm->tm_sec, tm->tm_min,
+ tm->tm_hour, tm->tm_mday,
+ tm->tm_mon, tm->tm_year, tm->tm_wday);
+
+ buf[0] = 0x80 | M41T94_REG_SECONDS; /* write time + date */
+ buf[M41T94_REG_SECONDS] = BIN2BCD(tm->tm_sec);
+ buf[M41T94_REG_MINUTES] = BIN2BCD(tm->tm_min);
+ buf[M41T94_REG_HOURS] = BIN2BCD(tm->tm_hour);
+ buf[M41T94_REG_WDAY] = BIN2BCD(tm->tm_wday + 1);
+ buf[M41T94_REG_DAY] = BIN2BCD(tm->tm_mday);
+ buf[M41T94_REG_MONTH] = BIN2BCD(tm->tm_mon + 1);
+
+ buf[M41T94_REG_HOURS] |= M41T94_BIT_CEB;
+ if (tm->tm_year >= 100)
+ buf[M41T94_REG_HOURS] |= M41T94_BIT_CB;
+ buf[M41T94_REG_YEAR] = BIN2BCD(tm->tm_year % 100);
+
+ return spi_write(spi, buf, 8);
+}
+
+static int m41t94_read_time(struct device *dev, struct rtc_time *tm)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ u8 buf[2];
+ int ret, hour;
+
+ /* clear halt update bit */
+ ret = spi_w8r8(spi, M41T94_REG_HT);
+ if (ret < 0)
+ return ret;
+ if (ret & M41T94_BIT_HALT) {
+ buf[0] = 0x80 | M41T94_REG_HT;
+ buf[1] = ret & ~M41T94_BIT_HALT;
+ spi_write(spi, buf, 2);
+ }
+
+ /* clear stop bit */
+ ret = spi_w8r8(spi, M41T94_REG_SECONDS);
+ if (ret < 0)
+ return ret;
+ if (ret & M41T94_BIT_STOP) {
+ buf[0] = 0x80 | M41T94_REG_SECONDS;
+ buf[1] = ret & ~M41T94_BIT_STOP;
+ spi_write(spi, buf, 2);
+ }
+
+ tm->tm_sec = BCD2BIN(spi_w8r8(spi, M41T94_REG_SECONDS));
+ tm->tm_min = BCD2BIN(spi_w8r8(spi, M41T94_REG_MINUTES));
+ hour = spi_w8r8(spi, M41T94_REG_HOURS);
+ tm->tm_hour = BCD2BIN(hour & 0x3f);
+ tm->tm_wday = BCD2BIN(spi_w8r8(spi, M41T94_REG_WDAY)) - 1;
+ tm->tm_mday = BCD2BIN(spi_w8r8(spi, M41T94_REG_DAY));
+ tm->tm_mon = BCD2BIN(spi_w8r8(spi, M41T94_REG_MONTH)) - 1;
+ tm->tm_year = BCD2BIN(spi_w8r8(spi, M41T94_REG_YEAR));
+ if ((hour & M41T94_BIT_CB) || !(hour & M41T94_BIT_CEB))
+ tm->tm_year += 100;
+
+ dev_dbg(dev, "%s secs=%d, mins=%d, "
+ "hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n",
+ "read", tm->tm_sec, tm->tm_min,
+ tm->tm_hour, tm->tm_mday,
+ tm->tm_mon, tm->tm_year, tm->tm_wday);
+
+ /* initial clock setting can be undefined */
+ return rtc_valid_tm(tm);
+}
+
+static const struct rtc_class_ops m41t94_rtc_ops = {
+ .read_time = m41t94_read_time,
+ .set_time = m41t94_set_time,
+};
+
+static struct spi_driver m41t94_driver;
+
+static int __devinit m41t94_probe(struct spi_device *spi)
+{
+ struct rtc_device *rtc;
+ int res;
+
+ spi->bits_per_word = 8;
+ spi_setup(spi);
+
+ res = spi_w8r8(spi, M41T94_REG_SECONDS);
+ if (res < 0) {
+ dev_err(&spi->dev, "not found.\n");
+ return res;
+ }
+
+ rtc = rtc_device_register(m41t94_driver.driver.name,
+ &spi->dev, &m41t94_rtc_ops, THIS_MODULE);
+ if (IS_ERR(rtc))
+ return PTR_ERR(rtc);
+
+ dev_set_drvdata(&spi->dev, rtc);
+
+ return 0;
+}
+
+static int __devexit m41t94_remove(struct spi_device *spi)
+{
+ struct rtc_device *rtc = platform_get_drvdata(spi);
+
+ if (rtc)
+ rtc_device_unregister(rtc);
+
+ return 0;
+}
+
+static struct spi_driver m41t94_driver = {
+ .driver = {
+ .name = "rtc-m41t94",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+ },
+ .probe = m41t94_probe,
+ .remove = __devexit_p(m41t94_remove),
+};
+
+static __init int m41t94_init(void)
+{
+ return spi_register_driver(&m41t94_driver);
+}
+
+module_init(m41t94_init);
+
+static __exit void m41t94_exit(void)
+{
+ spi_unregister_driver(&m41t94_driver);
+}
+
+module_exit(m41t94_exit);
+
+MODULE_AUTHOR("Kim B. Heino <Kim.Heino@bluegiga.com>");
+MODULE_DESCRIPTION("Driver for ST M41T94 SPI RTC");
+MODULE_LICENSE("GPL");
#define rtc_write(val, addr) omap_writeb(val, OMAP_RTC_BASE + (addr))
-/* platform_bus isn't hotpluggable, so for static linkage it'd be safe
- * to get rid of probe() and remove() code ... too bad the driver struct
- * remembers probe(), that's about 25% of the runtime footprint!!
- */
-#ifndef MODULE
-#undef __devexit
-#undef __devexit_p
-#define __devexit __exit
-#define __devexit_p __exit_p
-#endif
-
-
/* we rely on the rtc framework to handle locking (rtc->ops_lock),
* so the only other requirement is that register accesses which
* require BUSY to be clear are made with IRQs locally disabled
static int omap_rtc_alarm;
static int omap_rtc_timer;
-static int __devinit omap_rtc_probe(struct platform_device *pdev)
+static int __init omap_rtc_probe(struct platform_device *pdev)
{
struct resource *res, *mem;
struct rtc_device *rtc;
return -EIO;
}
-static int __devexit omap_rtc_remove(struct platform_device *pdev)
+static int __exit omap_rtc_remove(struct platform_device *pdev)
{
struct rtc_device *rtc = platform_get_drvdata(pdev);;
MODULE_ALIAS("platform:omap_rtc");
static struct platform_driver omap_rtc_driver = {
- .probe = omap_rtc_probe,
- .remove = __devexit_p(omap_rtc_remove),
+ .remove = __exit_p(omap_rtc_remove),
.suspend = omap_rtc_suspend,
.resume = omap_rtc_resume,
.shutdown = omap_rtc_shutdown,
static int __init rtc_init(void)
{
- return platform_driver_register(&omap_rtc_driver);
+ return platform_driver_probe(&omap_rtc_driver, omap_rtc_probe);
}
module_init(rtc_init);
* drivers/rtc/rtc-pcf8583.c
*
* Copyright (C) 2000 Russell King
+ * Copyright (C) 2008 Wolfram Sang & Juergen Beisert, Pengutronix
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/slab.h>
-#include <linux/string.h>
#include <linux/rtc.h>
#include <linux/init.h>
#include <linux/errno.h>
};
struct pcf8583 {
- struct i2c_client client;
struct rtc_device *rtc;
unsigned char ctrl;
};
#define CTRL_ALARM 0x02
#define CTRL_TIMER 0x01
-static const unsigned short normal_i2c[] = { 0x50, I2C_CLIENT_END };
-
-/* Module parameters */
-I2C_CLIENT_INSMOD;
static struct i2c_driver pcf8583_driver;
.set_time = pcf8583_rtc_set_time,
};
-static int pcf8583_probe(struct i2c_adapter *adap, int addr, int kind);
-
-static int pcf8583_attach(struct i2c_adapter *adap)
-{
- return i2c_probe(adap, &addr_data, pcf8583_probe);
-}
-
-static int pcf8583_detach(struct i2c_client *client)
-{
- int err;
- struct pcf8583 *pcf = i2c_get_clientdata(client);
- struct rtc_device *rtc = pcf->rtc;
-
- if (rtc)
- rtc_device_unregister(rtc);
-
- if ((err = i2c_detach_client(client)))
- return err;
-
- kfree(pcf);
- return 0;
-}
-
-static struct i2c_driver pcf8583_driver = {
- .driver = {
- .name = "pcf8583",
- },
- .id = I2C_DRIVERID_PCF8583,
- .attach_adapter = pcf8583_attach,
- .detach_client = pcf8583_detach,
-};
-
-static int pcf8583_probe(struct i2c_adapter *adap, int addr, int kind)
+static int pcf8583_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
- struct pcf8583 *pcf;
- struct i2c_client *client;
- struct rtc_device *rtc;
- unsigned char buf[1], ad[1] = { 0 };
+ struct pcf8583 *pcf8583;
int err;
- struct i2c_msg msgs[2] = {
- {
- .addr = addr,
- .flags = 0,
- .len = 1,
- .buf = ad,
- }, {
- .addr = addr,
- .flags = I2C_M_RD,
- .len = 1,
- .buf = buf,
- }
- };
- if (!i2c_check_functionality(adap, I2C_FUNC_I2C))
- return 0;
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
+ return -ENODEV;
- pcf = kzalloc(sizeof(*pcf), GFP_KERNEL);
- if (!pcf)
+ pcf8583 = kzalloc(sizeof(struct pcf8583), GFP_KERNEL);
+ if (!pcf8583)
return -ENOMEM;
- client = &pcf->client;
+ pcf8583->rtc = rtc_device_register(pcf8583_driver.driver.name,
+ &client->dev, &pcf8583_rtc_ops, THIS_MODULE);
- client->addr = addr;
- client->adapter = adap;
- client->driver = &pcf8583_driver;
-
- strlcpy(client->name, pcf8583_driver.driver.name, I2C_NAME_SIZE);
-
- if (i2c_transfer(client->adapter, msgs, 2) != 2) {
- err = -EIO;
+ if (IS_ERR(pcf8583->rtc)) {
+ err = PTR_ERR(pcf8583->rtc);
goto exit_kfree;
}
- err = i2c_attach_client(client);
-
- if (err)
- goto exit_kfree;
-
- rtc = rtc_device_register(pcf8583_driver.driver.name, &client->dev,
- &pcf8583_rtc_ops, THIS_MODULE);
+ i2c_set_clientdata(client, pcf8583);
+ return 0;
- if (IS_ERR(rtc)) {
- err = PTR_ERR(rtc);
- goto exit_detach;
- }
+exit_kfree:
+ kfree(pcf8583);
+ return err;
+}
- pcf->rtc = rtc;
- i2c_set_clientdata(client, pcf);
- set_ctrl(client, buf[0]);
+static int __devexit pcf8583_remove(struct i2c_client *client)
+{
+ struct pcf8583 *pcf8583 = i2c_get_clientdata(client);
+ if (pcf8583->rtc)
+ rtc_device_unregister(pcf8583->rtc);
+ kfree(pcf8583);
return 0;
+}
-exit_detach:
- i2c_detach_client(client);
-
-exit_kfree:
- kfree(pcf);
+static const struct i2c_device_id pcf8583_id[] = {
+ { "pcf8583", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, pcf8583_id);
- return err;
-}
+static struct i2c_driver pcf8583_driver = {
+ .driver = {
+ .name = "pcf8583",
+ .owner = THIS_MODULE,
+ },
+ .probe = pcf8583_probe,
+ .remove = __devexit_p(pcf8583_remove),
+ .id_table = pcf8583_id,
+};
static __init int pcf8583_init(void)
{
static void __iomem *s3c_rtc_base;
static int s3c_rtc_alarmno = NO_IRQ;
static int s3c_rtc_tickno = NO_IRQ;
-static int s3c_rtc_freq = 1;
static DEFINE_SPINLOCK(s3c_rtc_pie_lock);
-static unsigned int tick_count;
/* IRQ Handlers */
{
struct rtc_device *rdev = id;
- rtc_update_irq(rdev, tick_count++, RTC_PF | RTC_IRQF);
+ rtc_update_irq(rdev, 1, RTC_PF | RTC_IRQF);
return IRQ_HANDLED;
}
writeb(tmp, s3c_rtc_base + S3C2410_RTCALM);
}
-static void s3c_rtc_setpie(int to)
+static int s3c_rtc_setpie(struct device *dev, int enabled)
{
unsigned int tmp;
- pr_debug("%s: pie=%d\n", __func__, to);
+ pr_debug("%s: pie=%d\n", __func__, enabled);
spin_lock_irq(&s3c_rtc_pie_lock);
tmp = readb(s3c_rtc_base + S3C2410_TICNT) & ~S3C2410_TICNT_ENABLE;
- if (to)
+ if (enabled)
tmp |= S3C2410_TICNT_ENABLE;
writeb(tmp, s3c_rtc_base + S3C2410_TICNT);
spin_unlock_irq(&s3c_rtc_pie_lock);
+
+ return 0;
}
-static void s3c_rtc_setfreq(int freq)
+static int s3c_rtc_setfreq(struct device *dev, int freq)
{
unsigned int tmp;
spin_lock_irq(&s3c_rtc_pie_lock);
- tmp = readb(s3c_rtc_base + S3C2410_TICNT) & S3C2410_TICNT_ENABLE;
-
- s3c_rtc_freq = freq;
+ tmp = readb(s3c_rtc_base + S3C2410_TICNT) & S3C2410_TICNT_ENABLE;
tmp |= (128 / freq)-1;
writeb(tmp, s3c_rtc_base + S3C2410_TICNT);
spin_unlock_irq(&s3c_rtc_pie_lock);
+
+ return 0;
}
/* Time read/write */
writeb(alrm_en, base + S3C2410_RTCALM);
- if (0) {
- alrm_en = readb(base + S3C2410_RTCALM);
- alrm_en &= ~S3C2410_RTCALM_ALMEN;
- writeb(alrm_en, base + S3C2410_RTCALM);
- disable_irq_wake(s3c_rtc_alarmno);
- }
+ s3c_rtc_setaie(alrm->enabled);
if (alrm->enabled)
enable_irq_wake(s3c_rtc_alarmno);
return 0;
}
-static int s3c_rtc_ioctl(struct device *dev,
- unsigned int cmd, unsigned long arg)
-{
- unsigned int ret = -ENOIOCTLCMD;
-
- switch (cmd) {
- case RTC_AIE_OFF:
- case RTC_AIE_ON:
- s3c_rtc_setaie((cmd == RTC_AIE_ON) ? 1 : 0);
- ret = 0;
- break;
-
- case RTC_PIE_OFF:
- case RTC_PIE_ON:
- tick_count = 0;
- s3c_rtc_setpie((cmd == RTC_PIE_ON) ? 1 : 0);
- ret = 0;
- break;
-
- case RTC_IRQP_READ:
- ret = put_user(s3c_rtc_freq, (unsigned long __user *)arg);
- break;
-
- case RTC_IRQP_SET:
- if (!is_power_of_2(arg)) {
- ret = -EINVAL;
- goto exit;
- }
-
- pr_debug("s3c2410_rtc: setting frequency %ld\n", arg);
-
- s3c_rtc_setfreq(arg);
- ret = 0;
- break;
-
- case RTC_UIE_ON:
- case RTC_UIE_OFF:
- ret = -EINVAL;
- }
-
- exit:
- return ret;
-}
-
static int s3c_rtc_proc(struct device *dev, struct seq_file *seq)
{
unsigned int ticnt = readb(s3c_rtc_base + S3C2410_TICNT);
seq_printf(seq, "periodic_IRQ\t: %s\n",
(ticnt & S3C2410_TICNT_ENABLE) ? "yes" : "no" );
-
- seq_printf(seq, "periodic_freq\t: %d\n", s3c_rtc_freq);
-
return 0;
}
/* do not clear AIE here, it may be needed for wake */
- s3c_rtc_setpie(0);
+ s3c_rtc_setpie(dev, 0);
free_irq(s3c_rtc_alarmno, rtc_dev);
free_irq(s3c_rtc_tickno, rtc_dev);
}
static const struct rtc_class_ops s3c_rtcops = {
.open = s3c_rtc_open,
.release = s3c_rtc_release,
- .ioctl = s3c_rtc_ioctl,
.read_time = s3c_rtc_gettime,
.set_time = s3c_rtc_settime,
.read_alarm = s3c_rtc_getalarm,
.set_alarm = s3c_rtc_setalarm,
+ .irq_set_freq = s3c_rtc_setfreq,
+ .irq_set_state = s3c_rtc_setpie,
.proc = s3c_rtc_proc,
};
}
}
-static int s3c_rtc_remove(struct platform_device *dev)
+static int __devexit s3c_rtc_remove(struct platform_device *dev)
{
struct rtc_device *rtc = platform_get_drvdata(dev);
platform_set_drvdata(dev, NULL);
rtc_device_unregister(rtc);
- s3c_rtc_setpie(0);
+ s3c_rtc_setpie(&dev->dev, 0);
s3c_rtc_setaie(0);
iounmap(s3c_rtc_base);
return 0;
}
-static int s3c_rtc_probe(struct platform_device *pdev)
+static int __devinit s3c_rtc_probe(struct platform_device *pdev)
{
struct rtc_device *rtc;
struct resource *res;
pr_debug("s3c2410_rtc: RTCCON=%02x\n",
readb(s3c_rtc_base + S3C2410_RTCCON));
- s3c_rtc_setfreq(s3c_rtc_freq);
+ s3c_rtc_setfreq(&pdev->dev, 1);
/* register RTC and exit */
static struct platform_driver s3c2410_rtcdrv = {
.probe = s3c_rtc_probe,
- .remove = s3c_rtc_remove,
+ .remove = __devexit_p(s3c_rtc_remove),
.suspend = s3c_rtc_suspend,
.resume = s3c_rtc_resume,
.driver = {
/*
* Driver for NEC VR4100 series Real Time Clock unit.
*
- * Copyright (C) 2003-2006 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ * Copyright (C) 2003-2008 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
MODULE_AUTHOR("Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>");
MODULE_DESCRIPTION("NEC VR4100 series RTC driver");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
/* RTC 1 registers */
#define ETIMELREG 0x00
static DEFINE_SPINLOCK(rtc_lock);
static char rtc_name[] = "RTC";
-static unsigned long periodic_frequency;
static unsigned long periodic_count;
static unsigned int alarm_enabled;
static int aie_irq = -1;
return 0;
}
-static int vr41xx_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
+static int vr41xx_rtc_irq_set_freq(struct device *dev, int freq)
{
unsigned long count;
+ count = RTC_FREQUENCY;
+ do_div(count, freq);
+
+ periodic_count = count;
+
+ spin_lock_irq(&rtc_lock);
+
+ rtc1_write(RTCL1LREG, count);
+ rtc1_write(RTCL1HREG, count >> 16);
+
+ spin_unlock_irq(&rtc_lock);
+
+ return 0;
+}
+
+static int vr41xx_rtc_irq_set_state(struct device *dev, int enabled)
+{
+ if (enabled)
+ enable_irq(pie_irq);
+ else
+ disable_irq(pie_irq);
+
+ return 0;
+}
+
+static int vr41xx_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
+{
switch (cmd) {
case RTC_AIE_ON:
spin_lock_irq(&rtc_lock);
alarm_enabled = 0;
}
- spin_unlock_irq(&rtc_lock);
- break;
- case RTC_PIE_ON:
- enable_irq(pie_irq);
- break;
- case RTC_PIE_OFF:
- disable_irq(pie_irq);
- break;
- case RTC_IRQP_READ:
- return put_user(periodic_frequency, (unsigned long __user *)arg);
- break;
- case RTC_IRQP_SET:
- if (arg > MAX_PERIODIC_RATE)
- return -EINVAL;
-
- periodic_frequency = arg;
-
- count = RTC_FREQUENCY;
- do_div(count, arg);
-
- periodic_count = count;
-
- spin_lock_irq(&rtc_lock);
-
- rtc1_write(RTCL1LREG, count);
- rtc1_write(RTCL1HREG, count >> 16);
-
spin_unlock_irq(&rtc_lock);
break;
case RTC_EPOCH_READ:
.set_time = vr41xx_rtc_set_time,
.read_alarm = vr41xx_rtc_read_alarm,
.set_alarm = vr41xx_rtc_set_alarm,
+ .irq_set_freq = vr41xx_rtc_irq_set_freq,
+ .irq_set_state = vr41xx_rtc_irq_set_state,
};
static int __devinit rtc_probe(struct platform_device *pdev)
goto err_iounmap_all;
}
+ rtc->max_user_freq = MAX_PERIODIC_RATE;
+
spin_lock_irq(&rtc_lock);
rtc1_write(ECMPLREG, 0);
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/module.h>
+#include <linux/mm.h>
#include <linux/init.h>
#include <asm/irq.h>
char flag;
do {
- ch = serial_inp(up, UART_RX);
+ if (likely(lsr & UART_LSR_DR))
+ ch = serial_inp(up, UART_RX);
+ else
+ /*
+ * Intel 82571 has a Serial Over Lan device that will
+ * set UART_LSR_BI without setting UART_LSR_DR when
+ * it receives a break. To avoid reading from the
+ * receive buffer without UART_LSR_DR bit set, we
+ * just force the read character to be 0
+ */
+ ch = 0;
+
flag = TTY_NORMAL;
up->port.icount.rx++;
ignore_char:
lsr = serial_inp(up, UART_LSR);
- } while ((lsr & UART_LSR_DR) && (max_count-- > 0));
+ } while ((lsr & (UART_LSR_DR | UART_LSR_BI)) && (max_count-- > 0));
spin_unlock(&up->port.lock);
tty_flip_buffer_push(tty);
spin_lock(&up->port.lock);
DEBUG_INTR("status = %x...", status);
- if (status & UART_LSR_DR)
+ if (status & (UART_LSR_DR | UART_LSR_BI))
receive_chars(up, &status);
check_modem_status(up);
if (status & UART_LSR_THRE)
}
module_init(probe_serial_gsc);
+
+MODULE_LICENSE("GPL");
#define PCI_SUBDEVICE_ID_POCTAL232 0x0308
#define PCI_SUBDEVICE_ID_POCTAL422 0x0408
+/* Unknown vendors/cards - this should not be in linux/pci_ids.h */
+#define PCI_SUBDEVICE_ID_UNKNOWN_0x1584 0x1584
+
/*
* Master list of serial port init/setup/exit quirks.
* This does not describe the general nature of the port.
.setup = pci_default_setup,
.exit = __devexit_p(pci_plx9050_exit),
},
+ {
+ .vendor = PCI_VENDOR_ID_PLX,
+ .device = PCI_DEVICE_ID_PLX_9050,
+ .subvendor = PCI_VENDOR_ID_PLX,
+ .subdevice = PCI_SUBDEVICE_ID_UNKNOWN_0x1584,
+ .init = pci_plx9050_init,
+ .setup = pci_default_setup,
+ .exit = __devexit_p(pci_plx9050_exit),
+ },
{
.vendor = PCI_VENDOR_ID_PLX,
.device = PCI_DEVICE_ID_PLX_ROMULUS,
{ PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_1077,
PCI_ANY_ID, PCI_ANY_ID, 0, 0,
pbn_b2_4_921600 },
+ /* Unknown card - subdevice 0x1584 */
+ { PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
+ PCI_VENDOR_ID_PLX,
+ PCI_SUBDEVICE_ID_UNKNOWN_0x1584, 0, 0,
+ pbn_b0_4_115200 },
{ PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
PCI_SUBVENDOR_ID_KEYSPAN,
PCI_SUBDEVICE_ID_KEYSPAN_SX2, 0, 0,
depends on SERIAL_IP22_ZILOG=y
select SERIAL_CORE_CONSOLE
-config V850E_UART
- bool "NEC V850E on-chip UART support"
- depends on V850E_MA1 || V850E_ME2 || V850E_TEG || V850E2_ANNA || V850E_AS85EP1
- select SERIAL_CORE
- default y
-
-config V850E_UARTB
- bool
- depends on V850E_UART && V850E_ME2
- default y
-
-config V850E_UART_CONSOLE
- bool "Use NEC V850E on-chip UART for console"
- depends on V850E_UART
- select SERIAL_CORE_CONSOLE
-
config SERIAL_SH_SCI
tristate "SuperH SCI(F) serial port support"
depends on SUPERH || H8300
}
/* Shut them really down and reinit buffer descriptors */
- if (IS_SMC(pinfo))
+ if (IS_SMC(pinfo)) {
+ out_be16(&pinfo->smcup->smc_brkcr, 0);
cpm_line_cr_cmd(pinfo, CPM_CR_STOP_TX);
- else
+ } else {
+ out_be16(&pinfo->sccup->scc_brkcr, 0);
cpm_line_cr_cmd(pinfo, CPM_CR_GRA_STOP_TX);
+ }
cpm_uart_initbd(pinfo);
}
* enables, because we want to put them back if they were
* present.
*/
- prev_mode = in_be16(&smcp->smc_smcmr);
- out_be16(&smcp->smc_smcmr, smcr_mk_clen(bits) | cval | SMCMR_SM_UART);
- setbits16(&smcp->smc_smcmr, (prev_mode & (SMCMR_REN | SMCMR_TEN)));
+ prev_mode = in_be16(&smcp->smc_smcmr) & (SMCMR_REN | SMCMR_TEN);
+ /* Output in *one* operation, so we don't interrupt RX/TX if they
+ * were already enabled. */
+ out_be16(&smcp->smc_smcmr, smcr_mk_clen(bits) | cval |
+ SMCMR_SM_UART | prev_mode);
} else {
out_be16(&sccp->scc_psmr, (sbits << 12) | scval);
}
udbg_putc = NULL;
#endif
- cpm_line_cr_cmd(pinfo, CPM_CR_STOP_TX);
-
if (IS_SMC(pinfo)) {
+ out_be16(&pinfo->smcup->smc_brkcr, 0);
+ cpm_line_cr_cmd(pinfo, CPM_CR_STOP_TX);
clrbits8(&pinfo->smcp->smc_smcm, SMCM_RX | SMCM_TX);
clrbits16(&pinfo->smcp->smc_smcmr, SMCMR_REN | SMCMR_TEN);
} else {
+ out_be16(&pinfo->sccup->scc_brkcr, 0);
+ cpm_line_cr_cmd(pinfo, CPM_CR_GRA_STOP_TX);
clrbits16(&pinfo->sccp->scc_sccm, UART_SCCM_TX | UART_SCCM_RX);
clrbits32(&pinfo->sccp->scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
}
spin_unlock_irqrestore(&dport->port.lock, flags);
}
+/*
+ * Hack alert!
+ * Required solely so that the initial PROM-based console
+ * works undisturbed in parallel with this one.
+ */
+static void dz_pm(struct uart_port *uport, unsigned int state,
+ unsigned int oldstate)
+{
+ struct dz_port *dport = to_dport(uport);
+ unsigned long flags;
+
+ spin_lock_irqsave(&dport->port.lock, flags);
+ if (state < 3)
+ dz_start_tx(&dport->port);
+ else
+ dz_stop_tx(&dport->port);
+ spin_unlock_irqrestore(&dport->port.lock, flags);
+}
+
+
static const char *dz_type(struct uart_port *uport)
{
return "DZ";
.startup = dz_startup,
.shutdown = dz_shutdown,
.set_termios = dz_set_termios,
+ .pm = dz_pm,
.type = dz_type,
.release_port = dz_release_port,
.request_port = dz_request_port,
if (ret)
return ret;
+ spin_lock_init(&dport->port.lock); /* For dz_pm(). */
+
dz_reset(dport);
+ dz_pm(uport, 0, -1);
if (options)
uart_parse_options(options, &baud, &parity, &bits, &flow);
zport->regs[1] &= ~RxINT_MASK;
zport->regs[1] |= RxINT_ALL | TxINT_ENAB | EXT_INT_ENAB;
zport->regs[3] |= RxENABLE;
- zport->regs[5] |= TxENAB;
zport->regs[15] |= BRKIE;
write_zsreg(zport, R1, zport->regs[1]);
write_zsreg(zport, R3, zport->regs[3]);
spin_lock_irqsave(&scc->zlock, flags);
- zport->regs[5] &= ~TxENAB;
zport->regs[3] &= ~RxENABLE;
write_zsreg(zport, R5, zport->regs[5]);
write_zsreg(zport, R3, zport->regs[3]);
spin_unlock_irqrestore(&scc->zlock, flags);
}
+/*
+ * Hack alert!
+ * Required solely so that the initial PROM-based console
+ * works undisturbed in parallel with this one.
+ */
+static void zs_pm(struct uart_port *uport, unsigned int state,
+ unsigned int oldstate)
+{
+ struct zs_port *zport = to_zport(uport);
+
+ if (state < 3)
+ zport->regs[5] |= TxENAB;
+ else
+ zport->regs[5] &= ~TxENAB;
+ write_zsreg(zport, R5, zport->regs[5]);
+}
+
static const char *zs_type(struct uart_port *uport)
{
.startup = zs_startup,
.shutdown = zs_shutdown,
.set_termios = zs_set_termios,
+ .pm = zs_pm,
.type = zs_type,
.release_port = zs_release_port,
.request_port = zs_request_port,
return ret;
zs_reset(zport);
+ zs_pm(uport, 0, -1);
if (options)
uart_parse_options(options, &baud, &parity, &bits, &flow);
controller and the protocol drivers for the SPI slave chips
that are connected.
+if SPI_MASTER
+
comment "SPI Master Controller Drivers"
- depends on SPI_MASTER
config SPI_ATMEL
tristate "Atmel SPI Controller"
- depends on (ARCH_AT91 || AVR32) && SPI_MASTER
+ depends on (ARCH_AT91 || AVR32)
help
This selects a driver for the Atmel SPI Controller, present on
many AT32 (AVR32) and AT91 (ARM) chips.
config SPI_BFIN
tristate "SPI controller driver for ADI Blackfin5xx"
- depends on SPI_MASTER && BLACKFIN
+ depends on BLACKFIN
help
This is the SPI controller master driver for Blackfin 5xx processor.
config SPI_AU1550
tristate "Au1550/Au12x0 SPI Controller"
- depends on SPI_MASTER && (SOC_AU1550 || SOC_AU1200) && EXPERIMENTAL
+ depends on (SOC_AU1550 || SOC_AU1200) && EXPERIMENTAL
select SPI_BITBANG
help
If you say yes to this option, support will be included for the
config SPI_BITBANG
tristate "Bitbanging SPI master"
- depends on SPI_MASTER && EXPERIMENTAL
help
With a few GPIO pins, your system can bitbang the SPI protocol.
Select this to get SPI support through I/O pins (GPIO, parallel
config SPI_BUTTERFLY
tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)"
- depends on SPI_MASTER && PARPORT && EXPERIMENTAL
+ depends on PARPORT
select SPI_BITBANG
help
This uses a custom parallel port cable to connect to an AVR
config SPI_IMX
tristate "Freescale iMX SPI controller"
- depends on SPI_MASTER && ARCH_IMX && EXPERIMENTAL
+ depends on ARCH_IMX && EXPERIMENTAL
help
This enables using the Freescale iMX SPI controller in master
mode.
config SPI_LM70_LLP
tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
- depends on SPI_MASTER && PARPORT && EXPERIMENTAL
+ depends on PARPORT && EXPERIMENTAL
select SPI_BITBANG
help
This driver supports the NS LM70 LLP Evaluation Board,
config SPI_MPC52xx_PSC
tristate "Freescale MPC52xx PSC SPI controller"
- depends on SPI_MASTER && PPC_MPC52xx && EXPERIMENTAL
+ depends on PPC_MPC52xx && EXPERIMENTAL
help
This enables using the Freescale MPC52xx Programmable Serial
Controller in master SPI mode.
config SPI_MPC83xx
tristate "Freescale MPC83xx/QUICC Engine SPI controller"
- depends on SPI_MASTER && (PPC_83xx || QUICC_ENGINE) && EXPERIMENTAL
+ depends on (PPC_83xx || QUICC_ENGINE) && EXPERIMENTAL
help
This enables using the Freescale MPC83xx and QUICC Engine SPI
controllers in master mode.
config SPI_OMAP_UWIRE
tristate "OMAP1 MicroWire"
- depends on SPI_MASTER && ARCH_OMAP1
+ depends on ARCH_OMAP1
select SPI_BITBANG
help
This hooks up to the MicroWire controller on OMAP1 chips.
config SPI_OMAP24XX
tristate "McSPI driver for OMAP24xx/OMAP34xx"
- depends on SPI_MASTER && (ARCH_OMAP24XX || ARCH_OMAP34XX)
+ depends on ARCH_OMAP24XX || ARCH_OMAP34XX
help
SPI master controller for OMAP24xx/OMAP34xx Multichannel SPI
(McSPI) modules.
config SPI_PXA2XX
tristate "PXA2xx SSP SPI master"
- depends on SPI_MASTER && ARCH_PXA && EXPERIMENTAL
+ depends on ARCH_PXA && EXPERIMENTAL
select PXA_SSP
help
This enables using a PXA2xx SSP port as a SPI master controller.
config SPI_S3C24XX
tristate "Samsung S3C24XX series SPI"
- depends on SPI_MASTER && ARCH_S3C2410 && EXPERIMENTAL
+ depends on ARCH_S3C2410 && EXPERIMENTAL
select SPI_BITBANG
help
SPI driver for Samsung S3C24XX series ARM SoCs
config SPI_S3C24XX_GPIO
tristate "Samsung S3C24XX series SPI by GPIO"
- depends on SPI_MASTER && ARCH_S3C2410 && EXPERIMENTAL
+ depends on ARCH_S3C2410 && EXPERIMENTAL
select SPI_BITBANG
help
SPI driver for Samsung S3C24XX series ARM SoCs using
config SPI_SH_SCI
tristate "SuperH SCI SPI controller"
- depends on SPI_MASTER && SUPERH
+ depends on SUPERH
select SPI_BITBANG
help
SPI driver for SuperH SCI blocks.
config SPI_TXX9
tristate "Toshiba TXx9 SPI controller"
- depends on SPI_MASTER && GENERIC_GPIO && CPU_TX49XX
+ depends on GENERIC_GPIO && CPU_TX49XX
help
SPI driver for Toshiba TXx9 MIPS SoCs
config SPI_XILINX
tristate "Xilinx SPI controller"
- depends on SPI_MASTER && XILINX_VIRTEX && EXPERIMENTAL
+ depends on XILINX_VIRTEX && EXPERIMENTAL
select SPI_BITBANG
help
This exposes the SPI controller IP from the Xilinx EDK.
# being probably the most widely used ones.
#
comment "SPI Protocol Masters"
- depends on SPI_MASTER
config SPI_AT25
tristate "SPI EEPROMs from most vendors"
- depends on SPI_MASTER && SYSFS
+ depends on SYSFS
help
Enable this driver to get read/write support to most SPI EEPROMs,
after you configure the board init code to know about each eeprom
config SPI_SPIDEV
tristate "User mode SPI device driver support"
- depends on SPI_MASTER && EXPERIMENTAL
+ depends on EXPERIMENTAL
help
This supports user mode SPI protocol drivers.
config SPI_TLE62X0
tristate "Infineon TLE62X0 (for power switching)"
- depends on SPI_MASTER && SYSFS
+ depends on SYSFS
help
SPI driver for Infineon TLE62X0 series line driver chips,
such as the TLE6220, TLE6230 and TLE6240. This provides a
# Add new SPI protocol masters in alphabetical order above this line
#
+endif # SPI_MASTER
+
# (slave support would go here)
endif # SPI
#include <linux/errno.h>
#include <linux/device.h>
#include <linux/platform_device.h>
+#include <linux/resource.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi_bitbang.h>
#include <linux/dma-mapping.h>
struct spi_master *master;
struct device *dev;
struct au1550_spi_info *pdata;
+ struct resource *ioarea;
};
.dev_intpolarity = 0
};
+static int ddma_memid; /* id to above mem dma device */
+
static void au1550_spi_bits_handlers_set(struct au1550_spi *hw, int bpw);
au1xxx_dbdma_reset(hw->dma_tx_ch);
au1550_spi_reset_fifos(hw);
- dev_err(hw->dev,
- "Unexpected SPI error: event=0x%x stat=0x%x!\n",
- evnt, stat);
+ if (evnt == PSC_SPIEVNT_RO)
+ dev_err(hw->dev,
+ "dma transfer: receive FIFO overflow!\n");
+ else
+ dev_err(hw->dev,
+ "dma transfer: unexpected SPI error "
+ "(event=0x%x stat=0x%x)!\n", evnt, stat);
complete(&hw->master_done);
return IRQ_HANDLED;
if ((evnt & (PSC_SPIEVNT_MM | PSC_SPIEVNT_RO
| PSC_SPIEVNT_RU | PSC_SPIEVNT_TO
- | PSC_SPIEVNT_TU | PSC_SPIEVNT_SD))
+ | PSC_SPIEVNT_SD))
!= 0) {
- dev_err(hw->dev,
- "Unexpected SPI error: event=0x%x stat=0x%x!\n",
- evnt, stat);
/*
* due to an error we consider transfer as done,
* so mask all events until before next transfer start
*/
au1550_spi_mask_ack_all(hw);
au1550_spi_reset_fifos(hw);
+ dev_err(hw->dev,
+ "pio transfer: unexpected SPI error "
+ "(event=0x%x stat=0x%x)!\n", evnt, stat);
complete(&hw->master_done);
return IRQ_HANDLED;
}
stat = hw->regs->psc_spistat;
au_sync();
- if ((stat & PSC_SPISTAT_RE) == 0 && hw->rx_count < hw->len) {
+ /*
+ * Take care to not let the Rx FIFO overflow.
+ *
+ * We only write a byte if we have read one at least. Initially,
+ * the write fifo is full, so we should read from the read fifo
+ * first.
+ * In case we miss a word from the read fifo, we should get a
+ * RO event and should back out.
+ */
+ if (!(stat & PSC_SPISTAT_RE) && hw->rx_count < hw->len) {
hw->rx_word(hw);
- /* ack the receive request event */
- hw->regs->psc_spievent = PSC_SPIEVNT_RR;
- au_sync();
busy = 1;
- }
- if ((stat & PSC_SPISTAT_TF) == 0 && hw->tx_count < hw->len) {
- hw->tx_word(hw);
- /* ack the transmit request event */
- hw->regs->psc_spievent = PSC_SPIEVNT_TR;
- au_sync();
- busy = 1;
+ if (!(stat & PSC_SPISTAT_TF) && hw->tx_count < hw->len)
+ hw->tx_word(hw);
}
} while (busy);
- evnt = hw->regs->psc_spievent;
+ hw->regs->psc_spievent = PSC_SPIEVNT_RR | PSC_SPIEVNT_TR;
au_sync();
- if (hw->rx_count >= hw->len || (evnt & PSC_SPIEVNT_MD) != 0) {
+ /*
+ * Restart the SPI transmission in case of a transmit underflow.
+ * This seems to work despite the notes in the Au1550 data book
+ * of Figure 8-4 with flowchart for SPI master operation:
+ *
+ * """Note 1: An XFR Error Interrupt occurs, unless masked,
+ * for any of the following events: Tx FIFO Underflow,
+ * Rx FIFO Overflow, or Multiple-master Error
+ * Note 2: In case of a Tx Underflow Error, all zeroes are
+ * transmitted."""
+ *
+ * By simply restarting the spi transfer on Tx Underflow Error,
+ * we assume that spi transfer was paused instead of zeroes
+ * transmittion mentioned in the Note 2 of Au1550 data book.
+ */
+ if (evnt & PSC_SPIEVNT_TU) {
+ hw->regs->psc_spievent = PSC_SPIEVNT_TU | PSC_SPIEVNT_MD;
+ au_sync();
+ hw->regs->psc_spipcr = PSC_SPIPCR_MS;
+ au_sync();
+ }
+
+ if (hw->rx_count >= hw->len) {
/* transfer completed successfully */
au1550_spi_mask_ack_all(hw);
complete(&hw->master_done);
stat = hw->regs->psc_spistat;
au_sync();
} while ((stat & PSC_SPISTAT_DR) == 0);
+
+ au1550_spi_reset_fifos(hw);
}
{
struct au1550_spi *hw;
struct spi_master *master;
+ struct resource *r;
int err = 0;
master = spi_alloc_master(&pdev->dev, sizeof(struct au1550_spi));
goto err_no_pdata;
}
- platform_set_drvdata(pdev, hw);
-
- init_completion(&hw->master_done);
-
- hw->bitbang.master = hw->master;
- hw->bitbang.setup_transfer = au1550_spi_setupxfer;
- hw->bitbang.chipselect = au1550_spi_chipsel;
- hw->bitbang.master->setup = au1550_spi_setup;
- hw->bitbang.txrx_bufs = au1550_spi_txrx_bufs;
+ r = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (!r) {
+ dev_err(&pdev->dev, "no IRQ\n");
+ err = -ENODEV;
+ goto err_no_iores;
+ }
+ hw->irq = r->start;
+
+ hw->usedma = 0;
+ r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+ if (r) {
+ hw->dma_tx_id = r->start;
+ r = platform_get_resource(pdev, IORESOURCE_DMA, 1);
+ if (r) {
+ hw->dma_rx_id = r->start;
+ if (usedma && ddma_memid) {
+ if (pdev->dev.dma_mask == NULL)
+ dev_warn(&pdev->dev, "no dma mask\n");
+ else
+ hw->usedma = 1;
+ }
+ }
+ }
- switch (hw->pdata->bus_num) {
- case 0:
- hw->irq = AU1550_PSC0_INT;
- hw->regs = (volatile psc_spi_t *)PSC0_BASE_ADDR;
- hw->dma_rx_id = DSCR_CMD0_PSC0_RX;
- hw->dma_tx_id = DSCR_CMD0_PSC0_TX;
- break;
- case 1:
- hw->irq = AU1550_PSC1_INT;
- hw->regs = (volatile psc_spi_t *)PSC1_BASE_ADDR;
- hw->dma_rx_id = DSCR_CMD0_PSC1_RX;
- hw->dma_tx_id = DSCR_CMD0_PSC1_TX;
- break;
- case 2:
- hw->irq = AU1550_PSC2_INT;
- hw->regs = (volatile psc_spi_t *)PSC2_BASE_ADDR;
- hw->dma_rx_id = DSCR_CMD0_PSC2_RX;
- hw->dma_tx_id = DSCR_CMD0_PSC2_TX;
- break;
- case 3:
- hw->irq = AU1550_PSC3_INT;
- hw->regs = (volatile psc_spi_t *)PSC3_BASE_ADDR;
- hw->dma_rx_id = DSCR_CMD0_PSC3_RX;
- hw->dma_tx_id = DSCR_CMD0_PSC3_TX;
- break;
- default:
- dev_err(&pdev->dev, "Wrong bus_num of SPI\n");
- err = -ENOENT;
- goto err_no_pdata;
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!r) {
+ dev_err(&pdev->dev, "no mmio resource\n");
+ err = -ENODEV;
+ goto err_no_iores;
}
- if (request_mem_region((unsigned long)hw->regs, sizeof(psc_spi_t),
- pdev->name) == NULL) {
+ hw->ioarea = request_mem_region(r->start, sizeof(psc_spi_t),
+ pdev->name);
+ if (!hw->ioarea) {
dev_err(&pdev->dev, "Cannot reserve iomem region\n");
err = -ENXIO;
goto err_no_iores;
}
-
- if (usedma) {
- if (pdev->dev.dma_mask == NULL)
- dev_warn(&pdev->dev, "no dma mask\n");
- else
- hw->usedma = 1;
+ hw->regs = (psc_spi_t __iomem *)ioremap(r->start, sizeof(psc_spi_t));
+ if (!hw->regs) {
+ dev_err(&pdev->dev, "cannot ioremap\n");
+ err = -ENXIO;
+ goto err_ioremap;
}
- if (hw->usedma) {
- /*
- * create memory device with 8 bits dev_devwidth
- * needed for proper byte ordering to spi fifo
- */
- int memid = au1xxx_ddma_add_device(&au1550_spi_mem_dbdev);
- if (!memid) {
- dev_err(&pdev->dev,
- "Cannot create dma 8 bit mem device\n");
- err = -ENXIO;
- goto err_dma_add_dev;
- }
+ platform_set_drvdata(pdev, hw);
+
+ init_completion(&hw->master_done);
+
+ hw->bitbang.master = hw->master;
+ hw->bitbang.setup_transfer = au1550_spi_setupxfer;
+ hw->bitbang.chipselect = au1550_spi_chipsel;
+ hw->bitbang.master->setup = au1550_spi_setup;
+ hw->bitbang.txrx_bufs = au1550_spi_txrx_bufs;
- hw->dma_tx_ch = au1xxx_dbdma_chan_alloc(memid,
+ if (hw->usedma) {
+ hw->dma_tx_ch = au1xxx_dbdma_chan_alloc(ddma_memid,
hw->dma_tx_id, NULL, (void *)hw);
if (hw->dma_tx_ch == 0) {
dev_err(&pdev->dev,
hw->dma_rx_ch = au1xxx_dbdma_chan_alloc(hw->dma_rx_id,
- memid, NULL, (void *)hw);
+ ddma_memid, NULL, (void *)hw);
if (hw->dma_rx_ch == 0) {
dev_err(&pdev->dev,
"Cannot allocate rx dma channel\n");
goto err_no_irq;
}
- master->bus_num = hw->pdata->bus_num;
+ master->bus_num = pdev->id;
master->num_chipselect = hw->pdata->num_chipselect;
/*
au1xxx_dbdma_chan_free(hw->dma_tx_ch);
err_no_txdma:
-err_dma_add_dev:
- release_mem_region((unsigned long)hw->regs, sizeof(psc_spi_t));
+ iounmap((void __iomem *)hw->regs);
+
+err_ioremap:
+ release_resource(hw->ioarea);
+ kfree(hw->ioarea);
err_no_iores:
err_no_pdata:
spi_bitbang_stop(&hw->bitbang);
free_irq(hw->irq, hw);
- release_mem_region((unsigned long)hw->regs, sizeof(psc_spi_t));
+ iounmap((void __iomem *)hw->regs);
+ release_resource(hw->ioarea);
+ kfree(hw->ioarea);
if (hw->usedma) {
au1550_spi_dma_rxtmp_free(hw);
static int __init au1550_spi_init(void)
{
+ /*
+ * create memory device with 8 bits dev_devwidth
+ * needed for proper byte ordering to spi fifo
+ */
+ if (usedma) {
+ ddma_memid = au1xxx_ddma_add_device(&au1550_spi_mem_dbdev);
+ if (!ddma_memid)
+ printk(KERN_ERR "au1550-spi: cannot add memory"
+ "dbdma device\n");
+ }
return platform_driver_probe(&au1550_spi_drv, au1550_spi_probe);
}
module_init(au1550_spi_init);
static void __exit au1550_spi_exit(void)
{
+ if (usedma && ddma_memid)
+ au1xxx_ddma_del_device(ddma_memid);
platform_driver_unregister(&au1550_spi_drv);
}
module_exit(au1550_spi_exit);
if (!spi_master_get(master))
return NULL;
+ WARN_ON(strlen(chip->modalias) >= sizeof(proxy->modalias));
+
proxy = kzalloc(sizeof *proxy, GFP_KERNEL);
if (!proxy) {
dev_err(dev, "can't alloc dev for cs%d\n",
proxy->max_speed_hz = chip->max_speed_hz;
proxy->mode = chip->mode;
proxy->irq = chip->irq;
- proxy->modalias = chip->modalias;
+ strlcpy(proxy->modalias, chip->modalias, sizeof(proxy->modalias));
snprintf(proxy->dev.bus_id, sizeof proxy->dev.bus_id,
"%s.%u", master->dev.bus_id,
cs->hw_mode |= SPMODE_LEN(bits_per_word);
- if ((mpc83xx_spi->spibrg / hz) >= 64) {
- pm = mpc83xx_spi->spibrg / (hz * 64) - 1;
- if (pm > 0x0f) {
- dev_err(&spi->dev, "Requested speed is too "
- "low: %d Hz. Will use %d Hz instead.\n",
- hz, mpc83xx_spi->spibrg / 1024);
- pm = 0x0f;
+ if ((mpc83xx_spi->spibrg / hz) > 64) {
+ pm = mpc83xx_spi->spibrg / (hz * 64);
+ if (pm > 16) {
+ cs->hw_mode |= SPMODE_DIV16;
+ pm /= 16;
+ if (pm > 16) {
+ dev_err(&spi->dev, "Requested speed is too "
+ "low: %d Hz. Will use %d Hz instead.\n",
+ hz, mpc83xx_spi->spibrg / 1024);
+ pm = 16;
+ }
}
- cs->hw_mode |= SPMODE_PM(pm) | SPMODE_DIV16;
- } else {
+ } else
pm = mpc83xx_spi->spibrg / (hz * 4);
- if (pm)
- pm--;
- cs->hw_mode |= SPMODE_PM(pm);
- }
+ if (pm)
+ pm--;
+
+ cs->hw_mode |= SPMODE_PM(pm);
regval = mpc83xx_spi_read_reg(&mpc83xx_spi->base->mode);
if (cs->hw_mode != regval) {
unsigned long flags;
* We walk the array of user-provided transfers, using each one
* to initialize a kernel version of the same transfer.
*/
- mutex_lock(&spidev->buf_lock);
buf = spidev->buffer;
total = 0;
for (n = n_xfers, k_tmp = k_xfers, u_tmp = u_xfers;
status = total;
done:
- mutex_unlock(&spidev->buf_lock);
kfree(k_xfers);
return status;
}
-static int
-spidev_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
+static long
+spidev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
int err = 0;
int retval = 0;
if (spi == NULL)
return -ESHUTDOWN;
+ /* use the buffer lock here for triple duty:
+ * - prevent I/O (from us) so calling spi_setup() is safe;
+ * - prevent concurrent SPI_IOC_WR_* from morphing
+ * data fields while SPI_IOC_RD_* reads them;
+ * - SPI_IOC_MESSAGE needs the buffer locked "normally".
+ */
+ mutex_lock(&spidev->buf_lock);
+
switch (cmd) {
/* read requests */
case SPI_IOC_RD_MODE:
kfree(ioc);
break;
}
+
+ mutex_unlock(&spidev->buf_lock);
spi_dev_put(spi);
return retval;
}
*/
.write = spidev_write,
.read = spidev_read,
- .ioctl = spidev_ioctl,
+ .unlocked_ioctl = spidev_ioctl,
.open = spidev_open,
.release = spidev_release,
};
goto put_master;
}
- xspi->irq = platform_get_irq(dev, 0);
- if (xspi->irq < 0) {
+ ret = platform_get_irq(dev, 0);
+ if (ret < 0) {
ret = -ENXIO;
goto unmap_io;
}
+ xspi->irq = ret;
master->bus_num = pdata->bus_num;
master->num_chipselect = pdata->num_chipselect;
similar boards, 3DLabs Permedia3 Create!, Appian Jeronimo 2000
and maybe other boards.
+config FB_CARMINE
+ tristate "Fujitsu carmine frame buffer support"
+ depends on FB && PCI
+ select FB_CFB_FILLRECT
+ select FB_CFB_COPYAREA
+ select FB_CFB_IMAGEBLIT
+ help
+ This is the frame buffer device driver for the Fujitsu Carmine chip.
+ The driver provides two independent frame buffer devices.
+
+choice
+ depends on FB_CARMINE
+ prompt "DRAM timing"
+ default FB_CARMINE_DRAM_EVAL
+
+config FB_CARMINE_DRAM_EVAL
+ bool "Eval board timings"
+ help
+ Use timings which work on the eval card.
+
+config CARMINE_DRAM_CUSTOM
+ bool "Custom board timings"
+ help
+ Use custom board timings.
+endchoice
+
config FB_AU1100
bool "Au1100 LCD Driver"
depends on (FB = y) && MIPS && SOC_AU1100
If unsure, say N.
+config FB_SH_MOBILE_LCDC
+ tristate "SuperH Mobile LCDC framebuffer support"
+ depends on FB && SUPERH
+ select FB_CFB_FILLRECT
+ select FB_CFB_COPYAREA
+ select FB_CFB_IMAGEBLIT
+ default m
+ ---help---
+ Frame buffer driver for the on-chip SH-Mobile LCD controller.
+
config FB_S3C2410
tristate "S3C2410 LCD framebuffer support"
depends on FB && ARCH_S3C2410
This enables support for the Metronome display controller used on
the E-Ink AM-200 EPD devkit.
+config FB_COBALT
+ tristate "Cobalt server LCD frame buffer support"
+ depends on FB && MIPS_COBALT
+
+config FB_SH7760
+ bool "SH7760/SH7763 LCDC support"
+ depends on FB && (CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7763)
+ select FB_CFB_FILLRECT
+ select FB_CFB_COPYAREA
+ select FB_CFB_IMAGEBLIT
+ help
+ Support for the SH7760/SH7763 integrated (D)STN/TFT LCD Controller.
+ Supports display resolutions up to 1024x1024 pixel, grayscale and
+ color operation, with depths ranging from 1 bpp to 8 bpp monochrome
+ and 8, 15 or 16 bpp color; 90 degrees clockwise display rotation for
+ panels <= 320 pixel horizontal resolution.
+
config FB_VIRTUAL
tristate "Virtual Frame Buffer support (ONLY FOR TESTING!)"
depends on FB
obj-$(CONFIG_FB_MAXINE) += maxinefb.o
obj-$(CONFIG_FB_METRONOME) += metronomefb.o
obj-$(CONFIG_FB_S1D13XXX) += s1d13xxxfb.o
+obj-$(CONFIG_FB_SH7760) += sh7760fb.o
obj-$(CONFIG_FB_IMX) += imxfb.o
obj-$(CONFIG_FB_S3C2410) += s3c2410fb.o
obj-$(CONFIG_FB_FSL_DIU) += fsl-diu-fb.o
+obj-$(CONFIG_FB_COBALT) += cobalt_lcdfb.o
obj-$(CONFIG_FB_PNX4008_DUM) += pnx4008/
obj-$(CONFIG_FB_PNX4008_DUM_RGB) += pnx4008/
obj-$(CONFIG_FB_IBM_GXT4500) += gxt4500.o
obj-$(CONFIG_FB_PS3) += ps3fb.o
obj-$(CONFIG_FB_SM501) += sm501fb.o
obj-$(CONFIG_FB_XILINX) += xilinxfb.o
+obj-$(CONFIG_FB_SH_MOBILE_LCDC) += sh_mobile_lcdcfb.o
+obj-$(CONFIG_FB_SH7343VOU) += sh7343_voufb.o
obj-$(CONFIG_FB_OMAP) += omap/
obj-$(CONFIG_XEN_FBDEV_FRONTEND) += xen-fbfront.o
+obj-$(CONFIG_FB_CARMINE) += carminefb.o
# Platform or fallback drivers go here
obj-$(CONFIG_FB_UVESA) += uvesafb.o
#include <linux/string.h>
#include <linux/ctype.h>
#include <linux/slab.h>
+#include <linux/mm.h>
#include <linux/init.h>
#include <linux/fb.h>
#include <linux/platform_device.h>
* Interface to the low level console driver
*/
-int amifb_init(void);
static void amifb_deinit(void);
/*
width = x2 - dx;
height = y2 - dy;
+ if (area->sx + dx < area->dx || area->sy + dy < area->dy)
+ return;
+
/* update sx,sy */
sx = area->sx + (dx - area->dx);
sy = area->sy + (dy - area->dy);
/* the source must be completely inside the virtual screen */
- if (sx < 0 || sy < 0 || (sx + width) > info->var.xres_virtual ||
- (sy + height) > info->var.yres_virtual)
+ if (sx + width > info->var.xres_virtual ||
+ sy + height > info->var.yres_virtual)
return;
if (dy > sy || (dy == sy && dx > sx)) {
* Initialisation
*/
-int __init amifb_init(void)
+static int __init amifb_init(void)
{
int tag, i, err = 0;
u_long chipptr;
}
}
-
-module_init(amifb_init);
-
-#ifdef MODULE
-MODULE_LICENSE("GPL");
-
-void cleanup_module(void)
+static void __exit amifb_exit(void)
{
unregister_framebuffer(&fb_info);
amifb_deinit();
amifb_video_off();
}
-#endif /* MODULE */
+
+module_init(amifb_init);
+module_exit(amifb_exit);
+
+MODULE_LICENSE("GPL");
width = x2 - dx;
height = y2 - dy;
+ if (area->sx + dx < area->dx || area->sy + dy < area->dy)
+ return;
+
/* update sx,sy */
sx = area->sx + (dx - area->dx);
sy = area->sy + (dy - area->dy);
/* the source must be completely inside the virtual screen */
- if (sx < 0 || sy < 0 || (sx + width) > info->var.xres_virtual ||
- (sy + height) > info->var.yres_virtual)
+ if (sx + width > info->var.xres_virtual ||
+ sy + height > info->var.yres_virtual)
return;
if (dy > sy || (dy == sy && dx > sx)) {
return 0;
}
+static const struct fb_videomode *atmel_lcdfb_choose_mode(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ struct fb_videomode varfbmode;
+ const struct fb_videomode *fbmode = NULL;
+
+ fb_var_to_videomode(&varfbmode, var);
+ fbmode = fb_find_nearest_mode(&varfbmode, &info->modelist);
+ if (fbmode)
+ fb_videomode_to_var(var, fbmode);
+ return fbmode;
+}
+
+
/**
* atmel_lcdfb_check_var - Validates a var passed in.
* @var: frame buffer variable screen structure
clk_value_khz = clk_get_rate(sinfo->lcdc_clk) / 1000;
dev_dbg(dev, "%s:\n", __func__);
+
+ if (!(var->pixclock && var->bits_per_pixel)) {
+ /* choose a suitable mode if possible */
+ if (!atmel_lcdfb_choose_mode(var, info)) {
+ dev_err(dev, "needed value not specified\n");
+ return -EINVAL;
+ }
+ }
+
dev_dbg(dev, " resolution: %ux%u\n", var->xres, var->yres);
dev_dbg(dev, " pixclk: %lu KHz\n", PICOS2KHZ(var->pixclock));
dev_dbg(dev, " bpp: %u\n", var->bits_per_pixel);
return -EINVAL;
}
+ /* Do not allow to have real resoulution larger than virtual */
+ if (var->xres > var->xres_virtual)
+ var->xres_virtual = var->xres;
+
+ if (var->yres > var->yres_virtual)
+ var->yres_virtual = var->yres;
+
/* Force same alignment for each line */
var->xres = (var->xres + 3) & ~3UL;
var->xres_virtual = (var->xres_virtual + 3) & ~3UL;
return 0;
}
+/*
+ * LCD reset sequence
+ */
+static void atmel_lcdfb_reset(struct atmel_lcdfb_info *sinfo)
+{
+ might_sleep();
+
+ /* LCD power off */
+ lcdc_writel(sinfo, ATMEL_LCDC_PWRCON, sinfo->guard_time << ATMEL_LCDC_GUARDT_OFFSET);
+
+ /* wait for the LCDC core to become idle */
+ while (lcdc_readl(sinfo, ATMEL_LCDC_PWRCON) & ATMEL_LCDC_BUSY)
+ msleep(10);
+
+ /* DMA disable */
+ lcdc_writel(sinfo, ATMEL_LCDC_DMACON, 0);
+
+ /* wait for DMA engine to become idle */
+ while (lcdc_readl(sinfo, ATMEL_LCDC_DMACON) & ATMEL_LCDC_DMABUSY)
+ msleep(10);
+
+ /* LCD power on */
+ lcdc_writel(sinfo, ATMEL_LCDC_PWRCON,
+ (sinfo->guard_time << ATMEL_LCDC_GUARDT_OFFSET) | ATMEL_LCDC_PWR);
+
+ /* DMA enable */
+ lcdc_writel(sinfo, ATMEL_LCDC_DMACON, sinfo->default_dmacon);
+}
+
/**
* atmel_lcdfb_set_par - Alters the hardware state.
* @info: frame buffer structure that represents a single frame buffer
unsigned long clk_value_khz;
unsigned long bits_per_line;
+ might_sleep();
+
dev_dbg(info->device, "%s:\n", __func__);
dev_dbg(info->device, " * resolution: %ux%u (%ux%u virtual)\n",
info->var.xres, info->var.yres,
/* Disable all interrupts */
lcdc_writel(sinfo, ATMEL_LCDC_IDR, ~0UL);
+ /* Enable FIFO & DMA errors */
+ lcdc_writel(sinfo, ATMEL_LCDC_IER, ATMEL_LCDC_UFLWI | ATMEL_LCDC_OWRI | ATMEL_LCDC_MERI);
/* ...wait for DMA engine to become idle... */
while (lcdc_readl(sinfo, ATMEL_LCDC_DMACON) & ATMEL_LCDC_DMABUSY)
u32 status;
status = lcdc_readl(sinfo, ATMEL_LCDC_ISR);
- lcdc_writel(sinfo, ATMEL_LCDC_IDR, status);
+ if (status & ATMEL_LCDC_UFLWI) {
+ dev_warn(info->device, "FIFO underflow %#x\n", status);
+ /* reset DMA and FIFO to avoid screen shifting */
+ schedule_work(&sinfo->task);
+ }
+ lcdc_writel(sinfo, ATMEL_LCDC_ICR, status);
return IRQ_HANDLED;
}
+/*
+ * LCD controller task (to reset the LCD)
+ */
+static void atmel_lcdfb_task(struct work_struct *work)
+{
+ struct atmel_lcdfb_info *sinfo =
+ container_of(work, struct atmel_lcdfb_info, task);
+
+ atmel_lcdfb_reset(sinfo);
+}
+
static int __init atmel_lcdfb_init_fbinfo(struct atmel_lcdfb_info *sinfo)
{
struct fb_info *info = sinfo->info;
struct fb_info *info;
struct atmel_lcdfb_info *sinfo;
struct atmel_lcdfb_info *pdata_sinfo;
+ struct fb_videomode fbmode;
struct resource *regs = NULL;
struct resource *map = NULL;
int ret;
goto unmap_mmio;
}
+ /* Some operations on the LCDC might sleep and
+ * require a preemptible task context */
+ INIT_WORK(&sinfo->task, atmel_lcdfb_task);
+
ret = atmel_lcdfb_init_fbinfo(sinfo);
if (ret < 0) {
dev_err(dev, "init fbinfo failed: %d\n", ret);
goto free_cmap;
}
+ /* add selected videomode to modelist */
+ fb_var_to_videomode(&fbmode, &info->var);
+ fb_add_videomode(&fbmode, &info->modelist);
+
/* Power up the LCDC screen */
if (sinfo->atmel_lcdfb_power_control)
sinfo->atmel_lcdfb_power_control(1);
free_cmap:
fb_dealloc_cmap(&info->cmap);
unregister_irqs:
+ cancel_work_sync(&sinfo->task);
free_irq(sinfo->irq_base, info);
unmap_mmio:
exit_backlight(sinfo);
if (!sinfo)
return 0;
+ cancel_work_sync(&sinfo->task);
exit_backlight(sinfo);
if (sinfo->atmel_lcdfb_power_control)
sinfo->atmel_lcdfb_power_control(0);
if (vclk * 12 < c.ppll_min)
vclk = c.ppll_min/12;
- pll->post_divider = -1;
-
/* now, find an acceptable divider */
- for (i = 0; i < sizeof(post_dividers); i++) {
+ for (i = 0; i < ARRAY_SIZE(post_dividers); i++) {
output_freq = post_dividers[i] * vclk;
if (output_freq >= c.ppll_min && output_freq <= c.ppll_max) {
pll->post_divider = post_dividers[i];
}
}
- if (pll->post_divider < 0)
+ if (i == ARRAY_SIZE(post_dividers))
return -EINVAL;
/* calculate feedback divider */
#endif /* CONFIG_FB_ATY_CT */
};
-/* can not fail */
static int __devinit correct_chipset(struct atyfb_par *par)
{
u8 rev;
if (par->pci_id == aty_chips[i].pci_id)
break;
+ if (i < 0)
+ return -ENODEV;
+
name = aty_chips[i].name;
par->pll_limits.pll_max = aty_chips[i].pll;
par->pll_limits.mclk = aty_chips[i].mclk;
const char *ramname = NULL, *xtal;
int gtb_memsize, has_var = 0;
struct fb_var_screeninfo var;
+ int ret;
init_waitqueue_head(&par->vblank.wait);
spin_lock_init(&par->int_lock);
var.yres_virtual = var.yres;
}
- if (atyfb_check_var(&var, info)) {
+ ret = atyfb_check_var(&var, info);
+ if (ret) {
PRINTKE("can't set default video mode\n");
goto aty_init_exit;
}
#endif /* CONFIG_FB_ATY_CT */
info->var = var;
- if (fb_alloc_cmap(&info->cmap, 256, 0) < 0)
+ ret = fb_alloc_cmap(&info->cmap, 256, 0);
+ if (ret < 0)
goto aty_init_exit;
- if (register_framebuffer(info) < 0) {
+ ret = register_framebuffer(info);
+ if (ret < 0) {
fb_dealloc_cmap(&info->cmap);
goto aty_init_exit;
}
par->mtrr_aper = -1;
}
#endif
- return -1;
+ return ret;
}
static void aty_resume_chip(struct fb_info *info)
if (par->lock_blank || par->asleep)
return 0;
-#ifdef CONFIG_FB_ATY_BACKLIGHT
-#elif defined(CONFIG_FB_ATY_GENERIC_LCD)
+#ifdef CONFIG_FB_ATY_GENERIC_LCD
if (par->lcd_table && blank > FB_BLANK_NORMAL &&
(aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) {
u32 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
}
aty_st_le32(CRTC_GEN_CNTL, gen_cntl, par);
-#ifdef CONFIG_FB_ATY_BACKLIGHT
-#elif defined(CONFIG_FB_ATY_GENERIC_LCD)
+#ifdef CONFIG_FB_ATY_GENERIC_LCD
if (par->lcd_table && blank <= FB_BLANK_NORMAL &&
(aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) {
u32 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
PRINTKE("no BIOS frequency table found, use parameters\n");
ret = -ENXIO;
}
- iounmap((void* __iomem )bios_base);
+ iounmap((void __iomem *)bios_base);
return ret;
}
struct fb_info *info;
struct resource *rp;
struct atyfb_par *par;
- int i, rc = -ENOMEM;
-
- for (i = ARRAY_SIZE(aty_chips) - 1; i >= 0; i--)
- if (pdev->device == aty_chips[i].pci_id)
- break;
-
- if (i < 0)
- return -ENODEV;
+ int rc = -ENOMEM;
/* Enable device in PCI config */
if (pci_enable_device(pdev)) {
par = info->par;
info->fix = atyfb_fix;
info->device = &pdev->dev;
- par->pci_id = aty_chips[i].pci_id;
+ par->pci_id = pdev->device;
par->res_start = res_start;
par->res_size = res_size;
par->irq = pdev->irq;
pci_set_drvdata(pdev, info);
/* Init chip & register framebuffer */
- if (aty_init(info))
+ rc = aty_init(info);
+ if (rc)
goto err_release_io;
#ifdef __sparc__
atyfb_remove(info);
}
-/*
- * This driver uses its own matching table. That will be more difficult
- * to fix, so for now, we just match against any ATI ID and let the
- * probe() function find out what's up. That also mean we don't have
- * a module ID table though.
- */
static struct pci_device_id atyfb_pci_tbl[] = {
- { PCI_VENDOR_ID_ATI, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
- PCI_BASE_CLASS_DISPLAY << 16, 0xff0000, 0 },
- { 0, }
+#ifdef CONFIG_FB_ATY_GX
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GX) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64CX) },
+#endif /* CONFIG_FB_ATY_GX */
+
+#ifdef CONFIG_FB_ATY_CT
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64CT) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64ET) },
+
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LT) },
+
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64VT) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GT) },
+
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64VU) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GU) },
+
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LG) },
+
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64VV) },
+
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GV) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GW) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GY) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GZ) },
+
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GB) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GD) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GI) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GP) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GQ) },
+
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LB) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LD) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LI) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LP) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LQ) },
+
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GM) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GN) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GO) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GL) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GR) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GS) },
+
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LM) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LN) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LR) },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LS) },
+#endif /* CONFIG_FB_ATY_CT */
+ { }
};
+MODULE_DEVICE_TABLE(pci, atyfb_pci_tbl);
+
static struct pci_driver atyfb_driver = {
.name = "atyfb",
.id_table = atyfb_pci_tbl,
static ssize_t radeon_show_one_edid(char *buf, loff_t off, size_t count, const u8 *edid)
{
- if (off > EDID_LENGTH)
- return 0;
-
- if (off + count > EDID_LENGTH)
- count = EDID_LENGTH - off;
-
- memcpy(buf, edid + off, count);
-
- return count;
+ return memory_read_from_buffer(buf, count, &off, edid, EDID_LENGTH);
}
struct radeonfb_info *rinfo;
int ret;
unsigned char c1, c2;
+ int err = 0;
pr_debug("radeonfb_pci_register BEGIN\n");
/* Register some sysfs stuff (should be done better) */
if (rinfo->mon1_EDID)
- sysfs_create_bin_file(&rinfo->pdev->dev.kobj, &edid1_attr);
+ err |= sysfs_create_bin_file(&rinfo->pdev->dev.kobj,
+ &edid1_attr);
if (rinfo->mon2_EDID)
- sysfs_create_bin_file(&rinfo->pdev->dev.kobj, &edid2_attr);
+ err |= sysfs_create_bin_file(&rinfo->pdev->dev.kobj,
+ &edid2_attr);
+ if (err)
+ pr_warning("%s() Creating sysfs files failed, continuing\n",
+ __func__);
/* save current mode regs before we switch into the new one
* so we can restore this upon __exit
The LTV350QV panel is present on all ATSTK1000 boards.
+config LCD_ILI9320
+ tristate
+ depends on LCD_CLASS_DEVICE && BACKLIGHT_LCD_SUPPORT
+ default n
+ help
+ If you have a panel based on the ILI9320 controller chip
+ then say y to include a power driver for it.
+
+config LCD_VGG2432A4
+ tristate "VGG2432A4 LCM device support"
+ depends on BACKLIGHT_LCD_SUPPORT && LCD_CLASS_DEVICE && SPI_MASTER
+ select LCD_ILI9320
+ default n
+ help
+ If you have a VGG2432A4 panel based on the ILI9320 controller chip
+ then say y to include a power driver for it.
+
+config LCD_PLATFORM
+ tristate "Platform LCD controls"
+ depends on LCD_CLASS_DEVICE
+ help
+ This driver provides a platform-device registered LCD power
+ control interface.
+
#
# Backlight
#
If in doubt, it's safe to enable this option; it doesn't kick
in unless the board's description says it's wired that way.
+config BACKLIGHT_ATMEL_PWM
+ tristate "Atmel PWM backlight control"
+ depends on BACKLIGHT_CLASS_DEVICE && ATMEL_PWM
+ default n
+ help
+ Say Y here if you want to use the PWM peripheral in Atmel AT91 and
+ AVR32 devices. This driver will need additional platform data to know
+ which PWM instance to use and how to configure it.
+
+ To compile this driver as a module, choose M here: the module will be
+ called atmel-pwm-bl.
+
config BACKLIGHT_CORGI
tristate "Generic (aka Sharp Corgi) Backlight Driver"
depends on BACKLIGHT_CLASS_DEVICE
help
If you have a LCD backlight adjustable by PWM, say Y to enable
this driver.
+
+config BACKLIGHT_MBP_NVIDIA
+ tristate "MacBook Pro Nvidia Backlight Driver"
+ depends on BACKLIGHT_CLASS_DEVICE && X86
+ default n
+ help
+ If you have an Apple Macbook Pro with Nvidia graphics hardware say Y
+ to enable a driver for its backlight
+
# Backlight & LCD drivers
obj-$(CONFIG_LCD_CLASS_DEVICE) += lcd.o
-obj-$(CONFIG_LCD_LTV350QV) += ltv350qv.o
+obj-$(CONFIG_LCD_LTV350QV) += ltv350qv.o
+obj-$(CONFIG_LCD_ILI9320) += ili9320.o
+obj-$(CONFIG_LCD_PLATFORM) += platform_lcd.o
+obj-$(CONFIG_LCD_VGG2432A4) += vgg2432a4.o
obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o
+obj-$(CONFIG_BACKLIGHT_ATMEL_PWM) += atmel-pwm-bl.o
obj-$(CONFIG_BACKLIGHT_CORGI) += corgi_bl.o
obj-$(CONFIG_BACKLIGHT_HP680) += hp680_bl.o
obj-$(CONFIG_BACKLIGHT_LOCOMO) += locomolcd.o
obj-$(CONFIG_BACKLIGHT_PROGEAR) += progear_bl.o
obj-$(CONFIG_BACKLIGHT_CARILLO_RANCH) += cr_bllcd.o
obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o
+obj-$(CONFIG_BACKLIGHT_MBP_NVIDIA) += mbp_nvidia_bl.o
+
--- /dev/null
+/*
+ * Copyright (C) 2008 Atmel Corporation
+ *
+ * Backlight driver using Atmel PWM peripheral.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/fb.h>
+#include <linux/clk.h>
+#include <linux/gpio.h>
+#include <linux/backlight.h>
+#include <linux/atmel_pwm.h>
+#include <linux/atmel-pwm-bl.h>
+
+struct atmel_pwm_bl {
+ const struct atmel_pwm_bl_platform_data *pdata;
+ struct backlight_device *bldev;
+ struct platform_device *pdev;
+ struct pwm_channel pwmc;
+ int gpio_on;
+};
+
+static int atmel_pwm_bl_set_intensity(struct backlight_device *bd)
+{
+ struct atmel_pwm_bl *pwmbl = bl_get_data(bd);
+ int intensity = bd->props.brightness;
+ int pwm_duty;
+
+ if (bd->props.power != FB_BLANK_UNBLANK)
+ intensity = 0;
+ if (bd->props.fb_blank != FB_BLANK_UNBLANK)
+ intensity = 0;
+
+ if (pwmbl->pdata->pwm_active_low)
+ pwm_duty = pwmbl->pdata->pwm_duty_min + intensity;
+ else
+ pwm_duty = pwmbl->pdata->pwm_duty_max - intensity;
+
+ if (pwm_duty > pwmbl->pdata->pwm_duty_max)
+ pwm_duty = pwmbl->pdata->pwm_duty_max;
+ if (pwm_duty < pwmbl->pdata->pwm_duty_min)
+ pwm_duty = pwmbl->pdata->pwm_duty_min;
+
+ if (!intensity) {
+ if (pwmbl->gpio_on != -1) {
+ gpio_set_value(pwmbl->gpio_on,
+ 0 ^ pwmbl->pdata->on_active_low);
+ }
+ pwm_channel_writel(&pwmbl->pwmc, PWM_CUPD, pwm_duty);
+ pwm_channel_disable(&pwmbl->pwmc);
+ } else {
+ pwm_channel_enable(&pwmbl->pwmc);
+ pwm_channel_writel(&pwmbl->pwmc, PWM_CUPD, pwm_duty);
+ if (pwmbl->gpio_on != -1) {
+ gpio_set_value(pwmbl->gpio_on,
+ 1 ^ pwmbl->pdata->on_active_low);
+ }
+ }
+
+ return 0;
+}
+
+static int atmel_pwm_bl_get_intensity(struct backlight_device *bd)
+{
+ struct atmel_pwm_bl *pwmbl = bl_get_data(bd);
+ u8 intensity;
+
+ if (pwmbl->pdata->pwm_active_low) {
+ intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) -
+ pwmbl->pdata->pwm_duty_min;
+ } else {
+ intensity = pwmbl->pdata->pwm_duty_max -
+ pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY);
+ }
+
+ return intensity;
+}
+
+static int atmel_pwm_bl_init_pwm(struct atmel_pwm_bl *pwmbl)
+{
+ unsigned long pwm_rate = pwmbl->pwmc.mck;
+ unsigned long prescale = DIV_ROUND_UP(pwm_rate,
+ (pwmbl->pdata->pwm_frequency *
+ pwmbl->pdata->pwm_compare_max)) - 1;
+
+ /*
+ * Prescale must be power of two and maximum 0xf in size because of
+ * hardware limit. PWM speed will be:
+ * PWM module clock speed / (2 ^ prescale).
+ */
+ prescale = fls(prescale);
+ if (prescale > 0xf)
+ prescale = 0xf;
+
+ pwm_channel_writel(&pwmbl->pwmc, PWM_CMR, prescale);
+ pwm_channel_writel(&pwmbl->pwmc, PWM_CDTY,
+ pwmbl->pdata->pwm_duty_min +
+ pwmbl->bldev->props.brightness);
+ pwm_channel_writel(&pwmbl->pwmc, PWM_CPRD,
+ pwmbl->pdata->pwm_compare_max);
+
+ dev_info(&pwmbl->pdev->dev, "Atmel PWM backlight driver "
+ "(%lu Hz)\n", pwmbl->pwmc.mck /
+ pwmbl->pdata->pwm_compare_max /
+ (1 << prescale));
+
+ return pwm_channel_enable(&pwmbl->pwmc);
+}
+
+static struct backlight_ops atmel_pwm_bl_ops = {
+ .get_brightness = atmel_pwm_bl_get_intensity,
+ .update_status = atmel_pwm_bl_set_intensity,
+};
+
+static int atmel_pwm_bl_probe(struct platform_device *pdev)
+{
+ const struct atmel_pwm_bl_platform_data *pdata;
+ struct backlight_device *bldev;
+ struct atmel_pwm_bl *pwmbl;
+ int retval;
+
+ pwmbl = kzalloc(sizeof(struct atmel_pwm_bl), GFP_KERNEL);
+ if (!pwmbl)
+ return -ENOMEM;
+
+ pwmbl->pdev = pdev;
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata) {
+ retval = -ENODEV;
+ goto err_free_mem;
+ }
+
+ if (pdata->pwm_compare_max < pdata->pwm_duty_max ||
+ pdata->pwm_duty_min > pdata->pwm_duty_max ||
+ pdata->pwm_frequency == 0) {
+ retval = -EINVAL;
+ goto err_free_mem;
+ }
+
+ pwmbl->pdata = pdata;
+ pwmbl->gpio_on = pdata->gpio_on;
+
+ retval = pwm_channel_alloc(pdata->pwm_channel, &pwmbl->pwmc);
+ if (retval)
+ goto err_free_mem;
+
+ if (pwmbl->gpio_on != -1) {
+ retval = gpio_request(pwmbl->gpio_on, "gpio_atmel_pwm_bl");
+ if (retval) {
+ pwmbl->gpio_on = -1;
+ goto err_free_pwm;
+ }
+
+ /* Turn display off by defatult. */
+ retval = gpio_direction_output(pwmbl->gpio_on,
+ 0 ^ pdata->on_active_low);
+ if (retval)
+ goto err_free_gpio;
+ }
+
+ bldev = backlight_device_register("atmel-pwm-bl",
+ &pdev->dev, pwmbl, &atmel_pwm_bl_ops);
+ if (IS_ERR(bldev)) {
+ retval = PTR_ERR(bldev);
+ goto err_free_gpio;
+ }
+
+ pwmbl->bldev = bldev;
+
+ platform_set_drvdata(pdev, pwmbl);
+
+ /* Power up the backlight by default at middle intesity. */
+ bldev->props.power = FB_BLANK_UNBLANK;
+ bldev->props.max_brightness = pdata->pwm_duty_max - pdata->pwm_duty_min;
+ bldev->props.brightness = bldev->props.max_brightness / 2;
+
+ retval = atmel_pwm_bl_init_pwm(pwmbl);
+ if (retval)
+ goto err_free_bl_dev;
+
+ atmel_pwm_bl_set_intensity(bldev);
+
+ return 0;
+
+err_free_bl_dev:
+ platform_set_drvdata(pdev, NULL);
+ backlight_device_unregister(bldev);
+err_free_gpio:
+ if (pwmbl->gpio_on != -1)
+ gpio_free(pwmbl->gpio_on);
+err_free_pwm:
+ pwm_channel_free(&pwmbl->pwmc);
+err_free_mem:
+ kfree(pwmbl);
+ return retval;
+}
+
+static int __exit atmel_pwm_bl_remove(struct platform_device *pdev)
+{
+ struct atmel_pwm_bl *pwmbl = platform_get_drvdata(pdev);
+
+ if (pwmbl->gpio_on != -1) {
+ gpio_set_value(pwmbl->gpio_on, 0);
+ gpio_free(pwmbl->gpio_on);
+ }
+ pwm_channel_disable(&pwmbl->pwmc);
+ pwm_channel_free(&pwmbl->pwmc);
+ backlight_device_unregister(pwmbl->bldev);
+ platform_set_drvdata(pdev, NULL);
+ kfree(pwmbl);
+
+ return 0;
+}
+
+static struct platform_driver atmel_pwm_bl_driver = {
+ .driver = {
+ .name = "atmel-pwm-bl",
+ },
+ /* REVISIT add suspend() and resume() */
+ .remove = __exit_p(atmel_pwm_bl_remove),
+};
+
+static int __init atmel_pwm_bl_init(void)
+{
+ return platform_driver_probe(&atmel_pwm_bl_driver, atmel_pwm_bl_probe);
+}
+module_init(atmel_pwm_bl_init);
+
+static void __exit atmel_pwm_bl_exit(void)
+{
+ platform_driver_unregister(&atmel_pwm_bl_driver);
+}
+module_exit(atmel_pwm_bl_exit);
+
+MODULE_AUTHOR("Hans-Christian egtvedt <hans-christian.egtvedt@atmel.com>");
+MODULE_DESCRIPTION("Atmel PWM backlight driver");
+MODULE_LICENSE("GPL");
* backlight_device class.
* @name: the name of the new object(must be the same as the name of the
* respective framebuffer device).
+ * @parent: a pointer to the parent device
* @devdata: an optional pointer to be stored for private driver use. The
* methods may retrieve it by using bl_get_data(bd).
* @ops: the backlight operations structure.
--- /dev/null
+/* drivers/video/backlight/ili9320.c
+ *
+ * ILI9320 LCD controller driver core.
+ *
+ * Copyright 2007 Simtec Electronics
+ * http://armlinux.simtec.co.uk/
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/lcd.h>
+#include <linux/module.h>
+
+#include <linux/spi/spi.h>
+
+#include <video/ili9320.h>
+
+#include "ili9320.h"
+
+
+static inline int ili9320_write_spi(struct ili9320 *ili,
+ unsigned int reg,
+ unsigned int value)
+{
+ struct ili9320_spi *spi = &ili->access.spi;
+ unsigned char *addr = spi->buffer_addr;
+ unsigned char *data = spi->buffer_data;
+
+ /* spi message consits of:
+ * first byte: ID and operation
+ */
+
+ addr[0] = spi->id | ILI9320_SPI_INDEX | ILI9320_SPI_WRITE;
+ addr[1] = reg >> 8;
+ addr[2] = reg;
+
+ /* second message is the data to transfer */
+
+ data[0] = spi->id | ILI9320_SPI_DATA | ILI9320_SPI_WRITE;
+ data[1] = value >> 8;
+ data[2] = value;
+
+ return spi_sync(spi->dev, &spi->message);
+}
+
+int ili9320_write(struct ili9320 *ili, unsigned int reg, unsigned int value)
+{
+ dev_dbg(ili->dev, "write: reg=%02x, val=%04x\n", reg, value);
+ return ili->write(ili, reg, value);
+}
+
+EXPORT_SYMBOL_GPL(ili9320_write);
+
+int ili9320_write_regs(struct ili9320 *ili,
+ struct ili9320_reg *values,
+ int nr_values)
+{
+ int index;
+ int ret;
+
+ for (index = 0; index < nr_values; index++, values++) {
+ ret = ili9320_write(ili, values->address, values->value);
+ if (ret != 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+EXPORT_SYMBOL_GPL(ili9320_write_regs);
+
+static void ili9320_reset(struct ili9320 *lcd)
+{
+ struct ili9320_platdata *cfg = lcd->platdata;
+
+ cfg->reset(1);
+ mdelay(50);
+
+ cfg->reset(0);
+ mdelay(50);
+
+ cfg->reset(1);
+ mdelay(100);
+}
+
+static inline int ili9320_init_chip(struct ili9320 *lcd)
+{
+ int ret;
+
+ ili9320_reset(lcd);
+
+ ret = lcd->client->init(lcd, lcd->platdata);
+ if (ret != 0) {
+ dev_err(lcd->dev, "failed to initialise display\n");
+ return ret;
+ }
+
+ lcd->initialised = 1;
+ return 0;
+}
+
+static inline int ili9320_power_on(struct ili9320 *lcd)
+{
+ if (!lcd->initialised)
+ ili9320_init_chip(lcd);
+
+ lcd->display1 |= (ILI9320_DISPLAY1_D(3) | ILI9320_DISPLAY1_BASEE);
+ ili9320_write(lcd, ILI9320_DISPLAY1, lcd->display1);
+
+ return 0;
+}
+
+static inline int ili9320_power_off(struct ili9320 *lcd)
+{
+ lcd->display1 &= ~(ILI9320_DISPLAY1_D(3) | ILI9320_DISPLAY1_BASEE);
+ ili9320_write(lcd, ILI9320_DISPLAY1, lcd->display1);
+
+ return 0;
+}
+
+#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL)
+
+static int ili9320_power(struct ili9320 *lcd, int power)
+{
+ int ret = 0;
+
+ dev_dbg(lcd->dev, "power %d => %d\n", lcd->power, power);
+
+ if (POWER_IS_ON(power) && !POWER_IS_ON(lcd->power))
+ ret = ili9320_power_on(lcd);
+ else if (!POWER_IS_ON(power) && POWER_IS_ON(lcd->power))
+ ret = ili9320_power_off(lcd);
+
+ if (ret == 0)
+ lcd->power = power;
+ else
+ dev_warn(lcd->dev, "failed to set power mode %d\n", power);
+
+ return ret;
+}
+
+static inline struct ili9320 *to_our_lcd(struct lcd_device *lcd)
+{
+ return lcd_get_data(lcd);
+}
+
+static int ili9320_set_power(struct lcd_device *ld, int power)
+{
+ struct ili9320 *lcd = to_our_lcd(ld);
+
+ return ili9320_power(lcd, power);
+}
+
+static int ili9320_get_power(struct lcd_device *ld)
+{
+ struct ili9320 *lcd = to_our_lcd(ld);
+
+ return lcd->power;
+}
+
+static struct lcd_ops ili9320_ops = {
+ .get_power = ili9320_get_power,
+ .set_power = ili9320_set_power,
+};
+
+static void __devinit ili9320_setup_spi(struct ili9320 *ili,
+ struct spi_device *dev)
+{
+ struct ili9320_spi *spi = &ili->access.spi;
+
+ ili->write = ili9320_write_spi;
+ spi->dev = dev;
+
+ /* fill the two messages we are going to use to send the data
+ * with, the first the address followed by the data. The datasheet
+ * says they should be done as two distinct cycles of the SPI CS line.
+ */
+
+ spi->xfer[0].tx_buf = spi->buffer_addr;
+ spi->xfer[1].tx_buf = spi->buffer_data;
+ spi->xfer[0].len = 3;
+ spi->xfer[1].len = 3;
+ spi->xfer[0].bits_per_word = 8;
+ spi->xfer[1].bits_per_word = 8;
+ spi->xfer[0].cs_change = 1;
+
+ spi_message_init(&spi->message);
+ spi_message_add_tail(&spi->xfer[0], &spi->message);
+ spi_message_add_tail(&spi->xfer[1], &spi->message);
+}
+
+int __devinit ili9320_probe_spi(struct spi_device *spi,
+ struct ili9320_client *client)
+{
+ struct ili9320_platdata *cfg = spi->dev.platform_data;
+ struct device *dev = &spi->dev;
+ struct ili9320 *ili;
+ struct lcd_device *lcd;
+ int ret = 0;
+
+ /* verify we where given some information */
+
+ if (cfg == NULL) {
+ dev_err(dev, "no platform data supplied\n");
+ return -EINVAL;
+ }
+
+ if (cfg->hsize <= 0 || cfg->vsize <= 0 || cfg->reset == NULL) {
+ dev_err(dev, "invalid platform data supplied\n");
+ return -EINVAL;
+ }
+
+ /* allocate and initialse our state */
+
+ ili = kzalloc(sizeof(struct ili9320), GFP_KERNEL);
+ if (ili == NULL) {
+ dev_err(dev, "no memory for device\n");
+ return -ENOMEM;
+ }
+
+ ili->access.spi.id = ILI9320_SPI_IDCODE | ILI9320_SPI_ID(1);
+
+ ili->dev = dev;
+ ili->client = client;
+ ili->power = FB_BLANK_POWERDOWN;
+ ili->platdata = cfg;
+
+ dev_set_drvdata(&spi->dev, ili);
+
+ ili9320_setup_spi(ili, spi);
+
+ lcd = lcd_device_register("ili9320", dev, ili, &ili9320_ops);
+ if (IS_ERR(lcd)) {
+ dev_err(dev, "failed to register lcd device\n");
+ ret = PTR_ERR(lcd);
+ goto err_free;
+ }
+
+ ili->lcd = lcd;
+
+ dev_info(dev, "initialising %s\n", client->name);
+
+ ret = ili9320_power(ili, FB_BLANK_UNBLANK);
+ if (ret != 0) {
+ dev_err(dev, "failed to set lcd power state\n");
+ goto err_unregister;
+ }
+
+ return 0;
+
+ err_unregister:
+ lcd_device_unregister(lcd);
+
+ err_free:
+ kfree(ili);
+
+ return ret;
+}
+
+EXPORT_SYMBOL_GPL(ili9320_probe_spi);
+
+int __devexit ili9320_remove(struct ili9320 *ili)
+{
+ ili9320_power(ili, FB_BLANK_POWERDOWN);
+
+ lcd_device_unregister(ili->lcd);
+ kfree(ili);
+
+ return 0;
+}
+
+EXPORT_SYMBOL_GPL(ili9320_remove);
+
+#ifdef CONFIG_PM
+int ili9320_suspend(struct ili9320 *lcd, pm_message_t state)
+{
+ int ret;
+
+ dev_dbg(lcd->dev, "%s: event %d\n", __func__, state.event);
+
+ if (state.event == PM_EVENT_SUSPEND) {
+ ret = ili9320_power(lcd, FB_BLANK_POWERDOWN);
+
+ if (lcd->platdata->suspend == ILI9320_SUSPEND_DEEP) {
+ ili9320_write(lcd, ILI9320_POWER1, lcd->power1 |
+ ILI9320_POWER1_SLP |
+ ILI9320_POWER1_DSTB);
+ lcd->initialised = 0;
+ }
+
+ return ret;
+ }
+
+ return 0;
+}
+
+EXPORT_SYMBOL_GPL(ili9320_suspend);
+
+int ili9320_resume(struct ili9320 *lcd)
+{
+ dev_info(lcd->dev, "resuming from power state %d\n", lcd->power);
+
+ if (lcd->platdata->suspend == ILI9320_SUSPEND_DEEP) {
+ ili9320_write(lcd, ILI9320_POWER1, 0x00);
+ }
+
+ return ili9320_power(lcd, FB_BLANK_UNBLANK);
+}
+
+EXPORT_SYMBOL_GPL(ili9320_resume);
+#endif
+
+/* Power down all displays on reboot, poweroff or halt */
+void ili9320_shutdown(struct ili9320 *lcd)
+{
+ ili9320_power(lcd, FB_BLANK_POWERDOWN);
+}
+
+EXPORT_SYMBOL_GPL(ili9320_shutdown);
+
+MODULE_AUTHOR("Ben Dooks <ben-linux@fluff.org>");
+MODULE_DESCRIPTION("ILI9320 LCD Driver");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+/* drivers/video/backlight/ili9320.h
+ *
+ * ILI9320 LCD controller driver core.
+ *
+ * Copyright 2007 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * http://armlinux.simtec.co.uk/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+/* Holder for register and value pairs. */
+struct ili9320_reg {
+ unsigned short address;
+ unsigned short value;
+};
+
+struct ili9320;
+
+struct ili9320_client {
+ const char *name;
+ int (*init)(struct ili9320 *ili, struct ili9320_platdata *cfg);
+
+};
+/* Device attached via an SPI bus. */
+struct ili9320_spi {
+ struct spi_device *dev;
+ struct spi_message message;
+ struct spi_transfer xfer[2];
+
+ unsigned char id;
+ unsigned char buffer_addr[4];
+ unsigned char buffer_data[4];
+};
+
+/* ILI9320 device state. */
+struct ili9320 {
+ union {
+ struct ili9320_spi spi; /* SPI attachged device. */
+ } access; /* Register access method. */
+
+ struct device *dev;
+ struct lcd_device *lcd; /* LCD device we created. */
+ struct ili9320_client *client;
+ struct ili9320_platdata *platdata;
+
+ int power; /* current power state. */
+ int initialised;
+
+ unsigned short display1;
+ unsigned short power1;
+
+ int (*write)(struct ili9320 *ili, unsigned int reg, unsigned int val);
+};
+
+
+/* ILI9320 register access routines */
+
+extern int ili9320_write(struct ili9320 *ili,
+ unsigned int reg, unsigned int value);
+
+extern int ili9320_write_regs(struct ili9320 *ili,
+ struct ili9320_reg *values,
+ int nr_values);
+
+/* Device probe */
+
+extern int ili9320_probe_spi(struct spi_device *spi,
+ struct ili9320_client *cli);
+
+extern int ili9320_remove(struct ili9320 *lcd);
+extern void ili9320_shutdown(struct ili9320 *lcd);
+
+/* PM */
+
+extern int ili9320_suspend(struct ili9320 *lcd, pm_message_t state);
+extern int ili9320_resume(struct ili9320 *lcd);
ld = container_of(self, struct lcd_device, fb_notif);
mutex_lock(&ld->ops_lock);
if (ld->ops)
- if (!ld->ops->check_fb || ld->ops->check_fb(evdata->info))
+ if (!ld->ops->check_fb || ld->ops->check_fb(ld, evdata->info))
ld->ops->set_power(ld, *(int *)evdata->data);
mutex_unlock(&ld->ops_lock);
return 0;
--- /dev/null
+/*
+ * Backlight Driver for Nvidia 8600 in Macbook Pro
+ *
+ * Copyright (c) Red Hat <mjg@redhat.com>
+ * Based on code from Pommed:
+ * Copyright (C) 2006 Nicolas Boichat <nicolas @boichat.ch>
+ * Copyright (C) 2006 Felipe Alfaro Solana <felipe_alfaro @linuxmail.org>
+ * Copyright (C) 2007 Julien BLACHE <jb@jblache.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This driver triggers SMIs which cause the firmware to change the
+ * backlight brightness. This is icky in many ways, but it's impractical to
+ * get at the firmware code in order to figure out what it's actually doing.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/backlight.h>
+#include <linux/err.h>
+#include <linux/dmi.h>
+#include <linux/io.h>
+
+static struct backlight_device *mbp_backlight_device;
+
+static struct dmi_system_id __initdata mbp_device_table[] = {
+ {
+ .ident = "3,1",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,1"),
+ },
+ },
+ {
+ .ident = "3,2",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,2"),
+ },
+ },
+ {
+ .ident = "4,1",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro4,1"),
+ },
+ },
+ { }
+};
+
+static int mbp_send_intensity(struct backlight_device *bd)
+{
+ int intensity = bd->props.brightness;
+
+ outb(0x04 | (intensity << 4), 0xb3);
+ outb(0xbf, 0xb2);
+
+ return 0;
+}
+
+static int mbp_get_intensity(struct backlight_device *bd)
+{
+ outb(0x03, 0xb3);
+ outb(0xbf, 0xb2);
+ return inb(0xb3) >> 4;
+}
+
+static struct backlight_ops mbp_ops = {
+ .get_brightness = mbp_get_intensity,
+ .update_status = mbp_send_intensity,
+};
+
+static int __init mbp_init(void)
+{
+ if (!dmi_check_system(mbp_device_table))
+ return -ENODEV;
+
+ if (!request_region(0xb2, 2, "Macbook Pro backlight"))
+ return -ENXIO;
+
+ mbp_backlight_device = backlight_device_register("mbp_backlight",
+ NULL, NULL,
+ &mbp_ops);
+ if (IS_ERR(mbp_backlight_device)) {
+ release_region(0xb2, 2);
+ return PTR_ERR(mbp_backlight_device);
+ }
+
+ mbp_backlight_device->props.max_brightness = 15;
+ mbp_backlight_device->props.brightness =
+ mbp_get_intensity(mbp_backlight_device);
+ backlight_update_status(mbp_backlight_device);
+
+ return 0;
+}
+
+static void __exit mbp_exit(void)
+{
+ backlight_device_unregister(mbp_backlight_device);
+
+ release_region(0xb2, 2);
+}
+
+module_init(mbp_init);
+module_exit(mbp_exit);
+
+MODULE_AUTHOR("Matthew Garrett <mjg@redhat.com>");
+MODULE_DESCRIPTION("Nvidia-based Macbook Pro Backlight Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("svnAppleInc.:pnMacBookPro3,1");
+MODULE_ALIAS("svnAppleInc.:pnMacBookPro3,2");
+MODULE_ALIAS("svnAppleInc.:pnMacBookPro4,1");
--- /dev/null
+/* drivers/video/backlight/platform_lcd.c
+ *
+ * Copyright 2008 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * Generic platform-device LCD power control interface.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+*/
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/fb.h>
+#include <linux/backlight.h>
+#include <linux/lcd.h>
+
+#include <video/platform_lcd.h>
+
+struct platform_lcd {
+ struct device *us;
+ struct lcd_device *lcd;
+ struct plat_lcd_data *pdata;
+
+ unsigned int power;
+ unsigned int suspended : 1;
+};
+
+static inline struct platform_lcd *to_our_lcd(struct lcd_device *lcd)
+{
+ return lcd_get_data(lcd);
+}
+
+static int platform_lcd_get_power(struct lcd_device *lcd)
+{
+ struct platform_lcd *plcd = to_our_lcd(lcd);
+
+ return plcd->power;
+}
+
+static int platform_lcd_set_power(struct lcd_device *lcd, int power)
+{
+ struct platform_lcd *plcd = to_our_lcd(lcd);
+ int lcd_power = 1;
+
+ if (power == FB_BLANK_POWERDOWN || plcd->suspended)
+ lcd_power = 0;
+
+ plcd->pdata->set_power(plcd->pdata, lcd_power);
+ plcd->power = power;
+
+ return 0;
+}
+
+static int platform_lcd_match(struct lcd_device *lcd, struct fb_info *info)
+{
+ struct platform_lcd *plcd = to_our_lcd(lcd);
+ struct plat_lcd_data *pdata = plcd->pdata;
+
+ if (pdata->match_fb)
+ return pdata->match_fb(pdata, info);
+
+ return plcd->us->parent == info->device;
+}
+
+static struct lcd_ops platform_lcd_ops = {
+ .get_power = platform_lcd_get_power,
+ .set_power = platform_lcd_set_power,
+ .check_fb = platform_lcd_match,
+};
+
+static int __devinit platform_lcd_probe(struct platform_device *pdev)
+{
+ struct plat_lcd_data *pdata;
+ struct platform_lcd *plcd;
+ struct device *dev = &pdev->dev;
+ int err;
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata) {
+ dev_err(dev, "no platform data supplied\n");
+ return -EINVAL;
+ }
+
+ plcd = kzalloc(sizeof(struct platform_lcd), GFP_KERNEL);
+ if (!plcd) {
+ dev_err(dev, "no memory for state\n");
+ return -ENOMEM;
+ }
+
+ plcd->us = dev;
+ plcd->pdata = pdata;
+ plcd->lcd = lcd_device_register("platform-lcd", dev,
+ plcd, &platform_lcd_ops);
+ if (IS_ERR(plcd->lcd)) {
+ dev_err(dev, "cannot register lcd device\n");
+ err = PTR_ERR(plcd->lcd);
+ goto err_mem;
+ }
+
+ platform_set_drvdata(pdev, plcd);
+ return 0;
+
+ err_mem:
+ kfree(plcd);
+ return err;
+}
+
+static int __devexit platform_lcd_remove(struct platform_device *pdev)
+{
+ struct platform_lcd *plcd = platform_get_drvdata(pdev);
+
+ lcd_device_unregister(plcd->lcd);
+ kfree(plcd);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int platform_lcd_suspend(struct platform_device *pdev, pm_message_t st)
+{
+ struct platform_lcd *plcd = platform_get_drvdata(pdev);
+
+ plcd->suspended = 1;
+ platform_lcd_set_power(plcd->lcd, plcd->power);
+
+ return 0;
+}
+
+static int platform_lcd_resume(struct platform_device *pdev)
+{
+ struct platform_lcd *plcd = platform_get_drvdata(pdev);
+
+ plcd->suspended = 0;
+ platform_lcd_set_power(plcd->lcd, plcd->power);
+
+ return 0;
+}
+#else
+#define platform_lcd_suspend NULL
+#define platform_lcd_resume NULL
+#endif
+
+static struct platform_driver platform_lcd_driver = {
+ .driver = {
+ .name = "platform-lcd",
+ .owner = THIS_MODULE,
+ },
+ .probe = platform_lcd_probe,
+ .remove = __devexit_p(platform_lcd_remove),
+ .suspend = platform_lcd_suspend,
+ .resume = platform_lcd_resume,
+};
+
+static int __init platform_lcd_init(void)
+{
+ return platform_driver_register(&platform_lcd_driver);
+}
+
+static void __exit platform_lcd_cleanup(void)
+{
+ platform_driver_unregister(&platform_lcd_driver);
+}
+
+module_init(platform_lcd_init);
+module_exit(platform_lcd_cleanup);
+
+MODULE_AUTHOR("Ben Dooks <ben-linux@fluff.org>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:platform-lcd");
--- /dev/null
+/* drivers/video/backlight/vgg2432a4.c
+ *
+ * VGG2432A4 (ILI9320) LCD controller driver.
+ *
+ * Copyright 2007 Simtec Electronics
+ * http://armlinux.simtec.co.uk/
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/lcd.h>
+#include <linux/module.h>
+
+#include <linux/spi/spi.h>
+
+#include <video/ili9320.h>
+
+#include "ili9320.h"
+
+/* Device initialisation sequences */
+
+static struct ili9320_reg vgg_init1[] = {
+ {
+ .address = ILI9320_POWER1,
+ .value = ILI9320_POWER1_AP(0) | ILI9320_POWER1_BT(0),
+ }, {
+ .address = ILI9320_POWER2,
+ .value = (ILI9320_POWER2_VC(7) |
+ ILI9320_POWER2_DC0(0) | ILI9320_POWER2_DC1(0)),
+ }, {
+ .address = ILI9320_POWER3,
+ .value = ILI9320_POWER3_VRH(0),
+ }, {
+ .address = ILI9320_POWER4,
+ .value = ILI9320_POWER4_VREOUT(0),
+ },
+};
+
+static struct ili9320_reg vgg_init2[] = {
+ {
+ .address = ILI9320_POWER1,
+ .value = (ILI9320_POWER1_AP(3) | ILI9320_POWER1_APE |
+ ILI9320_POWER1_BT(7) | ILI9320_POWER1_SAP),
+ }, {
+ .address = ILI9320_POWER2,
+ .value = ILI9320_POWER2_VC(7) | ILI9320_POWER2_DC0(3),
+ }
+};
+
+static struct ili9320_reg vgg_gamma[] = {
+ {
+ .address = ILI9320_GAMMA1,
+ .value = 0x0000,
+ }, {
+ .address = ILI9320_GAMMA2,
+ .value = 0x0505,
+ }, {
+ .address = ILI9320_GAMMA3,
+ .value = 0x0004,
+ }, {
+ .address = ILI9320_GAMMA4,
+ .value = 0x0006,
+ }, {
+ .address = ILI9320_GAMMA5,
+ .value = 0x0707,
+ }, {
+ .address = ILI9320_GAMMA6,
+ .value = 0x0105,
+ }, {
+ .address = ILI9320_GAMMA7,
+ .value = 0x0002,
+ }, {
+ .address = ILI9320_GAMMA8,
+ .value = 0x0707,
+ }, {
+ .address = ILI9320_GAMMA9,
+ .value = 0x0704,
+ }, {
+ .address = ILI9320_GAMMA10,
+ .value = 0x807,
+ }
+
+};
+
+static struct ili9320_reg vgg_init0[] = {
+ [0] = {
+ /* set direction and scan mode gate */
+ .address = ILI9320_DRIVER,
+ .value = ILI9320_DRIVER_SS,
+ }, {
+ .address = ILI9320_DRIVEWAVE,
+ .value = (ILI9320_DRIVEWAVE_MUSTSET |
+ ILI9320_DRIVEWAVE_EOR | ILI9320_DRIVEWAVE_BC),
+ }, {
+ .address = ILI9320_ENTRYMODE,
+ .value = ILI9320_ENTRYMODE_ID(3) | ILI9320_ENTRYMODE_BGR,
+ }, {
+ .address = ILI9320_RESIZING,
+ .value = 0x0,
+ },
+};
+
+
+static int vgg2432a4_lcd_init(struct ili9320 *lcd,
+ struct ili9320_platdata *cfg)
+{
+ unsigned int addr;
+ int ret;
+
+ /* Set VCore before anything else (VGG243237-6UFLWA) */
+ ret = ili9320_write(lcd, 0x00e5, 0x8000);
+ if (ret)
+ goto err_initial;
+
+ /* Start the oscillator up before we can do anything else. */
+ ret = ili9320_write(lcd, ILI9320_OSCILATION, ILI9320_OSCILATION_OSC);
+ if (ret)
+ goto err_initial;
+
+ /* must wait at-lesat 10ms after starting */
+ mdelay(15);
+
+ ret = ili9320_write_regs(lcd, vgg_init0, ARRAY_SIZE(vgg_init0));
+ if (ret != 0)
+ goto err_initial;
+
+ ili9320_write(lcd, ILI9320_DISPLAY2, cfg->display2);
+ ili9320_write(lcd, ILI9320_DISPLAY3, cfg->display3);
+ ili9320_write(lcd, ILI9320_DISPLAY4, cfg->display4);
+
+ ili9320_write(lcd, ILI9320_RGB_IF1, cfg->rgb_if1);
+ ili9320_write(lcd, ILI9320_FRAMEMAKER, 0x0);
+ ili9320_write(lcd, ILI9320_RGB_IF2, ILI9320_RGBIF2_DPL);
+
+ ret = ili9320_write_regs(lcd, vgg_init1, ARRAY_SIZE(vgg_init1));
+ if (ret != 0)
+ goto err_vgg;
+
+ mdelay(300);
+
+ ret = ili9320_write_regs(lcd, vgg_init2, ARRAY_SIZE(vgg_init2));
+ if (ret != 0)
+ goto err_vgg2;
+
+ mdelay(100);
+
+ ili9320_write(lcd, ILI9320_POWER3, 0x13c);
+
+ mdelay(100);
+
+ ili9320_write(lcd, ILI9320_POWER4, 0x1c00);
+ ili9320_write(lcd, ILI9320_POWER7, 0x000e);
+
+ mdelay(100);
+
+ ili9320_write(lcd, ILI9320_GRAM_HORIZ_ADDR, 0x00);
+ ili9320_write(lcd, ILI9320_GRAM_VERT_ADD, 0x00);
+
+ ret = ili9320_write_regs(lcd, vgg_gamma, ARRAY_SIZE(vgg_gamma));
+ if (ret != 0)
+ goto err_vgg3;
+
+ ili9320_write(lcd, ILI9320_HORIZ_START, 0x0);
+ ili9320_write(lcd, ILI9320_HORIZ_END, cfg->hsize - 1);
+ ili9320_write(lcd, ILI9320_VERT_START, 0x0);
+ ili9320_write(lcd, ILI9320_VERT_END, cfg->vsize - 1);
+
+ ili9320_write(lcd, ILI9320_DRIVER2,
+ ILI9320_DRIVER2_NL(((cfg->vsize - 240) / 8) + 0x1D));
+
+ ili9320_write(lcd, ILI9320_BASE_IMAGE, 0x1);
+ ili9320_write(lcd, ILI9320_VERT_SCROLL, 0x00);
+
+ for (addr = ILI9320_PARTIAL1_POSITION; addr <= ILI9320_PARTIAL2_END;
+ addr++) {
+ ili9320_write(lcd, addr, 0x0);
+ }
+
+ ili9320_write(lcd, ILI9320_INTERFACE1, 0x10);
+ ili9320_write(lcd, ILI9320_INTERFACE2, cfg->interface2);
+ ili9320_write(lcd, ILI9320_INTERFACE3, cfg->interface3);
+ ili9320_write(lcd, ILI9320_INTERFACE4, cfg->interface4);
+ ili9320_write(lcd, ILI9320_INTERFACE5, cfg->interface5);
+ ili9320_write(lcd, ILI9320_INTERFACE6, cfg->interface6);
+
+ lcd->display1 = (ILI9320_DISPLAY1_D(3) | ILI9320_DISPLAY1_DTE |
+ ILI9320_DISPLAY1_GON | ILI9320_DISPLAY1_BASEE |
+ 0x40);
+
+ ili9320_write(lcd, ILI9320_DISPLAY1, lcd->display1);
+
+ return 0;
+
+ err_vgg3:
+ err_vgg2:
+ err_vgg:
+ err_initial:
+ return ret;
+}
+
+#ifdef CONFIG_PM
+static int vgg2432a4_suspend(struct spi_device *spi, pm_message_t state)
+{
+ return ili9320_suspend(dev_get_drvdata(&spi->dev), state);
+}
+
+static int vgg2432a4_resume(struct spi_device *spi)
+{
+ return ili9320_resume(dev_get_drvdata(&spi->dev));
+}
+#else
+#define vgg2432a4_suspend NULL
+#define vgg2432a4_resume NULL
+#endif
+
+static struct ili9320_client vgg2432a4_client = {
+ .name = "VGG2432A4",
+ .init = vgg2432a4_lcd_init,
+};
+
+/* Device probe */
+
+static int __devinit vgg2432a4_probe(struct spi_device *spi)
+{
+ int ret;
+
+ ret = ili9320_probe_spi(spi, &vgg2432a4_client);
+ if (ret != 0) {
+ dev_err(&spi->dev, "failed to initialise ili9320\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int __devexit vgg2432a4_remove(struct spi_device *spi)
+{
+ return ili9320_remove(dev_get_drvdata(&spi->dev));
+}
+
+static void vgg2432a4_shutdown(struct spi_device *spi)
+{
+ ili9320_shutdown(dev_get_drvdata(&spi->dev));
+}
+
+static struct spi_driver vgg2432a4_driver = {
+ .driver = {
+ .name = "VGG2432A4",
+ .owner = THIS_MODULE,
+ },
+ .probe = vgg2432a4_probe,
+ .remove = __devexit_p(vgg2432a4_remove),
+ .shutdown = vgg2432a4_shutdown,
+ .suspend = vgg2432a4_suspend,
+ .resume = vgg2432a4_resume,
+};
+
+/* Device driver initialisation */
+
+static int __init vgg2432a4_init(void)
+{
+ return spi_register_driver(&vgg2432a4_driver);
+}
+
+static void __exit vgg2432a4_exit(void)
+{
+ spi_unregister_driver(&vgg2432a4_driver);
+}
+
+module_init(vgg2432a4_init);
+module_exit(vgg2432a4_exit);
+
+MODULE_AUTHOR("Ben Dooks <ben-linux@fluff.org>");
+MODULE_DESCRIPTION("VGG2432A4 LCD Driver");
+MODULE_LICENSE("GPL v2");
+
+
return 0;
}
-static int bfin_lcd_check_fb(struct fb_info *fi)
+static int bfin_lcd_check_fb(struct lcd_device *dev, struct fb_info *fi)
{
if (!fi || (fi == &bfin_bf54x_fb))
return 1;
return 0;
}
-static int bfin_lcd_check_fb(struct fb_info *fi)
+static int bfin_lcd_check_fb(struct lcd_device *dev, struct fb_info *fi)
{
if (!fi || (fi == &bfin_t350mcqb_fb))
return 1;
--- /dev/null
+/*
+ * Frame buffer driver for the Carmine GPU.
+ *
+ * The driver configures the GPU as follows
+ * - FB0 is display 0 with unique memory area
+ * - FB1 is display 1 with unique memory area
+ * - both display use 32 bit colors
+ */
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/fb.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+
+#include "carminefb.h"
+#include "carminefb_regs.h"
+
+#if !defined(__LITTLE_ENDIAN) && !defined(__BIG_ENDIAN)
+#error "The endianness of the target host has not been defined."
+#endif
+
+/*
+ * The initial video mode can be supplied via two different ways:
+ * - as a string that is passed to fb_find_mode() (module option fb_mode_str)
+ * - as an integer that picks the video mode from carmine_modedb[] (module
+ * option fb_mode)
+ *
+ * If nothing is used than the initial video mode will be the
+ * CARMINEFB_DEFAULT_VIDEO_MODE member of the carmine_modedb[].
+ */
+#define CARMINEFB_DEFAULT_VIDEO_MODE 1
+
+static unsigned int fb_mode = CARMINEFB_DEFAULT_VIDEO_MODE;
+module_param(fb_mode, uint, 444);
+MODULE_PARM_DESC(fb_mode, "Initial video mode as integer.");
+
+static char *fb_mode_str;
+module_param(fb_mode_str, charp, 444);
+MODULE_PARM_DESC(fb_mode_str, "Initial video mode in characters.");
+
+/*
+ * Carminefb displays:
+ * 0b000 None
+ * 0b001 Display 0
+ * 0b010 Display 1
+ */
+static int fb_displays = CARMINE_USE_DISPLAY0 | CARMINE_USE_DISPLAY1;
+module_param(fb_displays, int, 444);
+MODULE_PARM_DESC(fb_displays, "Bit mode, which displays are used");
+
+struct carmine_hw {
+ void __iomem *v_regs;
+ void __iomem *screen_mem;
+ struct fb_info *fb[MAX_DISPLAY];
+};
+
+struct carmine_resolution {
+ u32 htp;
+ u32 hsp;
+ u32 hsw;
+ u32 hdp;
+ u32 vtr;
+ u32 vsp;
+ u32 vsw;
+ u32 vdp;
+ u32 disp_mode;
+};
+
+struct carmine_fb {
+ void __iomem *display_reg;
+ void __iomem *screen_base;
+ u32 smem_offset;
+ u32 cur_mode;
+ u32 new_mode;
+ struct carmine_resolution *res;
+ u32 pseudo_palette[16];
+};
+
+static struct fb_fix_screeninfo carminefb_fix __devinitdata = {
+ .id = "Carmine",
+ .type = FB_TYPE_PACKED_PIXELS,
+ .visual = FB_VISUAL_TRUECOLOR,
+ .accel = FB_ACCEL_NONE,
+};
+
+static const struct fb_videomode carmine_modedb[] = {
+ {
+ .name = "640x480",
+ .xres = 640,
+ .yres = 480,
+ }, {
+ .name = "800x600",
+ .xres = 800,
+ .yres = 600,
+ },
+};
+
+static struct carmine_resolution car_modes[] = {
+ {
+ /* 640x480 */
+ .htp = 800,
+ .hsp = 672,
+ .hsw = 96,
+ .hdp = 640,
+ .vtr = 525,
+ .vsp = 490,
+ .vsw = 2,
+ .vdp = 480,
+ .disp_mode = 0x1400,
+ },
+ {
+ /* 800x600 */
+ .htp = 1060,
+ .hsp = 864,
+ .hsw = 72,
+ .hdp = 800,
+ .vtr = 628,
+ .vsp = 601,
+ .vsw = 2,
+ .vdp = 600,
+ .disp_mode = 0x0d00,
+ }
+};
+
+static int carmine_find_mode(const struct fb_var_screeninfo *var)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(car_modes); i++)
+ if (car_modes[i].hdp == var->xres &&
+ car_modes[i].vdp == var->yres)
+ return i;
+ return -EINVAL;
+}
+
+static void c_set_disp_reg(const struct carmine_fb *par,
+ u32 offset, u32 val)
+{
+ writel(val, par->display_reg + offset);
+}
+
+static u32 c_get_disp_reg(const struct carmine_fb *par,
+ u32 offset)
+{
+ return readl(par->display_reg + offset);
+}
+
+static void c_set_hw_reg(const struct carmine_hw *hw,
+ u32 offset, u32 val)
+{
+ writel(val, hw->v_regs + offset);
+}
+
+static u32 c_get_hw_reg(const struct carmine_hw *hw,
+ u32 offset)
+{
+ return readl(hw->v_regs + offset);
+}
+
+static int carmine_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp, struct fb_info *info)
+{
+ if (regno >= 16)
+ return 1;
+
+ red >>= 8;
+ green >>= 8;
+ blue >>= 8;
+ transp >>= 8;
+
+ ((u32 *)info->pseudo_palette)[regno] = be32_to_cpu(transp << 24 |
+ red << 0 | green << 8 | blue << 16);
+ return 0;
+}
+
+static int carmine_check_var(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ int ret;
+
+ ret = carmine_find_mode(var);
+ if (ret < 0)
+ return ret;
+
+ if (var->grayscale || var->rotate || var->nonstd)
+ return -EINVAL;
+
+ var->xres_virtual = var->xres;
+ var->yres_virtual = var->yres;
+
+ var->bits_per_pixel = 32;
+
+#ifdef __BIG_ENDIAN
+ var->transp.offset = 24;
+ var->red.offset = 0;
+ var->green.offset = 8;
+ var->blue.offset = 16;
+#else
+ var->transp.offset = 24;
+ var->red.offset = 16;
+ var->green.offset = 8;
+ var->blue.offset = 0;
+#endif
+
+ var->red.length = 8;
+ var->green.length = 8;
+ var->blue.length = 8;
+ var->transp.length = 8;
+
+ var->red.msb_right = 0;
+ var->green.msb_right = 0;
+ var->blue.msb_right = 0;
+ var->transp.msb_right = 0;
+ return 0;
+}
+
+static void carmine_init_display_param(struct carmine_fb *par)
+{
+ u32 width;
+ u32 height;
+ u32 param;
+ u32 window_size;
+ u32 soffset = par->smem_offset;
+
+ c_set_disp_reg(par, CARMINE_DISP_REG_C_TRANS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_MLMR_TRANS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_CURSOR_MODE,
+ CARMINE_CURSOR0_PRIORITY_MASK |
+ CARMINE_CURSOR1_PRIORITY_MASK |
+ CARMINE_CURSOR_CUTZ_MASK);
+
+ /* Set default cursor position */
+ c_set_disp_reg(par, CARMINE_DISP_REG_CUR1_POS, 0 << 16 | 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_CUR2_POS, 0 << 16 | 0);
+
+ /* Set default display mode */
+ c_set_disp_reg(par, CARMINE_DISP_REG_L0_EXT_MODE, CARMINE_WINDOW_MODE |
+ CARMINE_EXT_CMODE_DIRECT24_RGBA);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L1_EXT_MODE,
+ CARMINE_EXT_CMODE_DIRECT24_RGBA);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L2_EXT_MODE, CARMINE_EXTEND_MODE |
+ CARMINE_EXT_CMODE_DIRECT24_RGBA);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L3_EXT_MODE, CARMINE_EXTEND_MODE |
+ CARMINE_EXT_CMODE_DIRECT24_RGBA);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L4_EXT_MODE, CARMINE_EXTEND_MODE |
+ CARMINE_EXT_CMODE_DIRECT24_RGBA);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L5_EXT_MODE, CARMINE_EXTEND_MODE |
+ CARMINE_EXT_CMODE_DIRECT24_RGBA);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L6_EXT_MODE, CARMINE_EXTEND_MODE |
+ CARMINE_EXT_CMODE_DIRECT24_RGBA);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L7_EXT_MODE, CARMINE_EXTEND_MODE |
+ CARMINE_EXT_CMODE_DIRECT24_RGBA);
+
+ /* Set default frame size to layer mode register */
+ width = par->res->hdp * 4 / CARMINE_DISP_WIDTH_UNIT;
+ width = width << CARMINE_DISP_WIDTH_SHIFT;
+
+ height = par->res->vdp - 1;
+ param = width | height;
+
+ c_set_disp_reg(par, CARMINE_DISP_REG_L0_MODE_W_H, param);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L1_WIDTH, width);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L2_MODE_W_H, param);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L3_MODE_W_H, param);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L4_MODE_W_H, param);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L5_MODE_W_H, param);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L6_MODE_W_H, param);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L7_MODE_W_H, param);
+
+ /* Set default pos and size */
+ window_size = (par->res->vdp - 1) << CARMINE_DISP_WIN_H_SHIFT;
+ window_size |= par->res->hdp;
+
+ c_set_disp_reg(par, CARMINE_DISP_REG_L0_WIN_POS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L0_WIN_SIZE, window_size);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L1_WIN_POS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L1_WIN_SIZE, window_size);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L2_WIN_POS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L2_WIN_SIZE, window_size);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L3_WIN_POS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L3_WIN_SIZE, window_size);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L4_WIN_POS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L4_WIN_SIZE, window_size);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L5_WIN_POS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L5_WIN_SIZE, window_size);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L6_WIN_POS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L6_WIN_SIZE, window_size);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L7_WIN_POS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L7_WIN_SIZE, window_size);
+
+ /* Set default origin address */
+ c_set_disp_reg(par, CARMINE_DISP_REG_L0_ORG_ADR, soffset);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L1_ORG_ADR, soffset);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L2_ORG_ADR1, soffset);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L3_ORG_ADR1, soffset);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L4_ORG_ADR1, soffset);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L5_ORG_ADR1, soffset);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L6_ORG_ADR1, soffset);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L7_ORG_ADR1, soffset);
+
+ /* Set default display address */
+ c_set_disp_reg(par, CARMINE_DISP_REG_L0_DISP_ADR, soffset);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L2_DISP_ADR1, soffset);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L3_DISP_ADR1, soffset);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L4_DISP_ADR1, soffset);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L5_DISP_ADR1, soffset);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L6_DISP_ADR0, soffset);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L7_DISP_ADR0, soffset);
+
+ /* Set default display position */
+ c_set_disp_reg(par, CARMINE_DISP_REG_L0_DISP_POS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L2_DISP_POS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L3_DISP_POS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L4_DISP_POS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L5_DISP_POS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L6_DISP_POS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L7_DISP_POS, 0);
+
+ /* Set default blend mode */
+ c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L0, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L1, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L2, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L3, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L4, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L5, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L6, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L7, 0);
+
+ /* default transparency mode */
+ c_set_disp_reg(par, CARMINE_DISP_REG_L0_TRANS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L1_TRANS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L2_TRANS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L3_TRANS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L4_TRANS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L5_TRANS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L6_TRANS, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L7_TRANS, 0);
+
+ /* Set default read skip parameter */
+ c_set_disp_reg(par, CARMINE_DISP_REG_L0RM, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L2RM, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L3RM, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L4RM, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L5RM, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L6RM, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L7RM, 0);
+
+ c_set_disp_reg(par, CARMINE_DISP_REG_L0PX, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L2PX, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L3PX, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L4PX, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L5PX, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L6PX, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L7PX, 0);
+
+ c_set_disp_reg(par, CARMINE_DISP_REG_L0PY, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L2PY, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L3PY, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L4PY, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L5PY, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L6PY, 0);
+ c_set_disp_reg(par, CARMINE_DISP_REG_L7PY, 0);
+}
+
+static void set_display_parameters(struct carmine_fb *par)
+{
+ u32 mode;
+ u32 hdp, vdp, htp, hsp, hsw, vtr, vsp, vsw;
+
+ /*
+ * display timing. Parameters are decreased by one because hardware
+ * spec is 0 to (n - 1)
+ * */
+ hdp = par->res->hdp - 1;
+ vdp = par->res->vdp - 1;
+ htp = par->res->htp - 1;
+ hsp = par->res->hsp - 1;
+ hsw = par->res->hsw - 1;
+ vtr = par->res->vtr - 1;
+ vsp = par->res->vsp - 1;
+ vsw = par->res->vsw - 1;
+
+ c_set_disp_reg(par, CARMINE_DISP_REG_H_TOTAL,
+ htp << CARMINE_DISP_HTP_SHIFT);
+ c_set_disp_reg(par, CARMINE_DISP_REG_H_PERIOD,
+ (hdp << CARMINE_DISP_HDB_SHIFT) | hdp);
+ c_set_disp_reg(par, CARMINE_DISP_REG_V_H_W_H_POS,
+ (vsw << CARMINE_DISP_VSW_SHIFT) |
+ (hsw << CARMINE_DISP_HSW_SHIFT) |
+ (hsp));
+ c_set_disp_reg(par, CARMINE_DISP_REG_V_TOTAL,
+ vtr << CARMINE_DISP_VTR_SHIFT);
+ c_set_disp_reg(par, CARMINE_DISP_REG_V_PERIOD_POS,
+ (vdp << CARMINE_DISP_VDP_SHIFT) | vsp);
+
+ /* clock */
+ mode = c_get_disp_reg(par, CARMINE_DISP_REG_DCM1);
+ mode = (mode & ~CARMINE_DISP_DCM_MASK) |
+ (par->res->disp_mode & CARMINE_DISP_DCM_MASK);
+ /* enable video output and layer 0 */
+ mode |= CARMINE_DEN | CARMINE_L0E;
+ c_set_disp_reg(par, CARMINE_DISP_REG_DCM1, mode);
+}
+
+static int carmine_set_par(struct fb_info *info)
+{
+ struct carmine_fb *par = info->par;
+ int ret;
+
+ ret = carmine_find_mode(&info->var);
+ if (ret < 0)
+ return ret;
+
+ par->new_mode = ret;
+ if (par->cur_mode != par->new_mode) {
+
+ par->cur_mode = par->new_mode;
+ par->res = &car_modes[par->new_mode];
+
+ carmine_init_display_param(par);
+ set_display_parameters(par);
+ }
+
+ info->fix.line_length = info->var.xres * info->var.bits_per_pixel / 8;
+ return 0;
+}
+
+static int init_hardware(struct carmine_hw *hw)
+{
+ u32 flags;
+ u32 loops;
+ u32 ret;
+
+ /* Initalize Carmine */
+ /* Sets internal clock */
+ c_set_hw_reg(hw, CARMINE_CTL_REG + CARMINE_CTL_REG_CLOCK_ENABLE,
+ CARMINE_DFLT_IP_CLOCK_ENABLE);
+
+ /* Video signal output is turned off */
+ c_set_hw_reg(hw, CARMINE_DISP0_REG + CARMINE_DISP_REG_DCM1, 0);
+ c_set_hw_reg(hw, CARMINE_DISP1_REG + CARMINE_DISP_REG_DCM1, 0);
+
+ /* Software reset */
+ c_set_hw_reg(hw, CARMINE_CTL_REG + CARMINE_CTL_REG_SOFTWARE_RESET, 1);
+ c_set_hw_reg(hw, CARMINE_CTL_REG + CARMINE_CTL_REG_SOFTWARE_RESET, 0);
+
+ /* I/O mode settings */
+ flags = CARMINE_DFLT_IP_DCTL_IO_CONT1 << 16 |
+ CARMINE_DFLT_IP_DCTL_IO_CONT0;
+ c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_IOCONT1_IOCONT0,
+ flags);
+
+ /* DRAM initial sequence */
+ flags = CARMINE_DFLT_IP_DCTL_MODE << 16 | CARMINE_DFLT_IP_DCTL_ADD;
+ c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_MODE_ADD,
+ flags);
+
+ flags = CARMINE_DFLT_IP_DCTL_SET_TIME1 << 16 |
+ CARMINE_DFLT_IP_DCTL_EMODE;
+ c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_SETTIME1_EMODE,
+ flags);
+
+ flags = CARMINE_DFLT_IP_DCTL_REFRESH << 16 |
+ CARMINE_DFLT_IP_DCTL_SET_TIME2;
+ c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_REFRESH_SETTIME2,
+ flags);
+
+ flags = CARMINE_DFLT_IP_DCTL_RESERVE2 << 16 |
+ CARMINE_DFLT_IP_DCTL_FIFO_DEPTH;
+ c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_RSV2_RSV1, flags);
+
+ flags = CARMINE_DFLT_IP_DCTL_DDRIF2 << 16 | CARMINE_DFLT_IP_DCTL_DDRIF1;
+ c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_DDRIF2_DDRIF1,
+ flags);
+
+ flags = CARMINE_DFLT_IP_DCTL_RESERVE0 << 16 |
+ CARMINE_DFLT_IP_DCTL_STATES;
+ c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_RSV0_STATES,
+ flags);
+
+ /* Executes DLL reset */
+ if (CARMINE_DCTL_DLL_RESET) {
+ for (loops = 0; loops < CARMINE_DCTL_INIT_WAIT_LIMIT; loops++) {
+
+ ret = c_get_hw_reg(hw, CARMINE_DCTL_REG +
+ CARMINE_DCTL_REG_RSV0_STATES);
+ ret &= CARMINE_DCTL_REG_STATES_MASK;
+ if (!ret)
+ break;
+
+ mdelay(CARMINE_DCTL_INIT_WAIT_INTERVAL);
+ }
+
+ if (loops >= CARMINE_DCTL_INIT_WAIT_LIMIT) {
+ printk(KERN_ERR "DRAM init failed\n");
+ return -EIO;
+ }
+ }
+
+ flags = CARMINE_DFLT_IP_DCTL_MODE_AFT_RST << 16 |
+ CARMINE_DFLT_IP_DCTL_ADD;
+ c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_MODE_ADD, flags);
+
+ flags = CARMINE_DFLT_IP_DCTL_RESERVE0 << 16 |
+ CARMINE_DFLT_IP_DCTL_STATES_AFT_RST;
+ c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_RSV0_STATES,
+ flags);
+
+ /* Initialize the write back register */
+ c_set_hw_reg(hw, CARMINE_WB_REG + CARMINE_WB_REG_WBM,
+ CARMINE_WB_REG_WBM_DEFAULT);
+
+ /* Initialize the Kottos registers */
+ c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_VRINTM, 0);
+ c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_VRERRM, 0);
+
+ /* Set DC offsets */
+ c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_PX, 0);
+ c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_PY, 0);
+ c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_LX, 0);
+ c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_LY, 0);
+ c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_TX, 0);
+ c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_TY, 0);
+ return 0;
+}
+
+static struct fb_ops carminefb_ops = {
+ .owner = THIS_MODULE,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+
+ .fb_check_var = carmine_check_var,
+ .fb_set_par = carmine_set_par,
+ .fb_setcolreg = carmine_setcolreg,
+};
+
+static int alloc_carmine_fb(void __iomem *regs, void __iomem *smem_base,
+ int smem_offset, struct device *device, struct fb_info **rinfo)
+{
+ int ret;
+ struct fb_info *info;
+ struct carmine_fb *par;
+
+ info = framebuffer_alloc(sizeof *par, device);
+ if (!info)
+ return -ENOMEM;
+
+ par = info->par;
+ par->display_reg = regs;
+ par->smem_offset = smem_offset;
+
+ info->screen_base = smem_base + smem_offset;
+ info->screen_size = CARMINE_DISPLAY_MEM;
+ info->fbops = &carminefb_ops;
+
+ info->fix = carminefb_fix;
+ info->pseudo_palette = par->pseudo_palette;
+ info->flags = FBINFO_DEFAULT;
+
+ ret = fb_alloc_cmap(&info->cmap, 256, 1);
+ if (ret < 0)
+ goto err_free_fb;
+
+ if (fb_mode > ARRAY_SIZE(carmine_modedb))
+ fb_mode = CARMINEFB_DEFAULT_VIDEO_MODE;
+
+ par->cur_mode = par->new_mode = ~0;
+
+ ret = fb_find_mode(&info->var, info, fb_mode_str, carmine_modedb,
+ ARRAY_SIZE(carmine_modedb),
+ &carmine_modedb[fb_mode], 32);
+ if (!ret || ret == 4) {
+ ret = -EINVAL;
+ goto err_dealloc_cmap;
+ }
+
+ fb_videomode_to_modelist(carmine_modedb, ARRAY_SIZE(carmine_modedb),
+ &info->modelist);
+
+ ret = register_framebuffer(info);
+ if (ret < 0)
+ goto err_dealloc_cmap;
+
+ printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node,
+ info->fix.id);
+
+ *rinfo = info;
+ return 0;
+
+err_dealloc_cmap:
+ fb_dealloc_cmap(&info->cmap);
+err_free_fb:
+ framebuffer_release(info);
+ return ret;
+}
+
+static void cleanup_fb_device(struct fb_info *info)
+{
+ if (info) {
+ unregister_framebuffer(info);
+ fb_dealloc_cmap(&info->cmap);
+ framebuffer_release(info);
+ }
+}
+
+static int __devinit carminefb_probe(struct pci_dev *dev,
+ const struct pci_device_id *ent)
+{
+ struct carmine_hw *hw;
+ struct device *device = &dev->dev;
+ struct fb_info *info;
+ int ret;
+
+ ret = pci_enable_device(dev);
+ if (ret)
+ return ret;
+
+ ret = -ENOMEM;
+ hw = kzalloc(sizeof *hw, GFP_KERNEL);
+ if (!hw)
+ goto err_enable_pci;
+
+ carminefb_fix.mmio_start = pci_resource_start(dev, CARMINE_CONFIG_BAR);
+ carminefb_fix.mmio_len = pci_resource_len(dev, CARMINE_CONFIG_BAR);
+
+ if (!request_mem_region(carminefb_fix.mmio_start,
+ carminefb_fix.mmio_len,
+ "carminefb regbase")) {
+ printk(KERN_ERR "carminefb: Can't reserve regbase.\n");
+ ret = -EBUSY;
+ goto err_free_hw;
+ }
+ hw->v_regs = ioremap_nocache(carminefb_fix.mmio_start,
+ carminefb_fix.mmio_len);
+ if (!hw->v_regs) {
+ printk(KERN_ERR "carminefb: Can't remap %s register.\n",
+ carminefb_fix.id);
+ goto err_free_reg_mmio;
+ }
+
+ carminefb_fix.smem_start = pci_resource_start(dev, CARMINE_MEMORY_BAR);
+ carminefb_fix.smem_len = pci_resource_len(dev, CARMINE_MEMORY_BAR);
+
+ /* The memory area tends to be very large (256 MiB). Remap only what
+ * is required for that largest resolution to avoid remaps at run
+ * time
+ */
+ if (carminefb_fix.smem_len > CARMINE_TOTAL_DIPLAY_MEM)
+ carminefb_fix.smem_len = CARMINE_TOTAL_DIPLAY_MEM;
+
+ else if (carminefb_fix.smem_len < CARMINE_TOTAL_DIPLAY_MEM) {
+ printk(KERN_ERR "carminefb: Memory bar is only %d bytes, %d "
+ "are required.", carminefb_fix.smem_len,
+ CARMINE_TOTAL_DIPLAY_MEM);
+ goto err_free_reg_mmio;
+ }
+
+ if (!request_mem_region(carminefb_fix.smem_start,
+ carminefb_fix.smem_len, "carminefb smem")) {
+ printk(KERN_ERR "carminefb: Can't reserve smem.\n");
+ goto err_unmap_vregs;
+ }
+
+ hw->screen_mem = ioremap_nocache(carminefb_fix.smem_start,
+ carminefb_fix.smem_len);
+ if (!hw->screen_mem) {
+ printk(KERN_ERR "carmine: Can't ioremap smem area.\n");
+ release_mem_region(carminefb_fix.smem_start,
+ carminefb_fix.smem_len);
+ goto err_reg_smem;
+ }
+
+ ret = init_hardware(hw);
+ if (ret)
+ goto err_unmap_screen;
+
+ info = NULL;
+ if (fb_displays & CARMINE_USE_DISPLAY0) {
+ ret = alloc_carmine_fb(hw->v_regs + CARMINE_DISP0_REG,
+ hw->screen_mem, CARMINE_DISPLAY_MEM * 0,
+ device, &info);
+ if (ret)
+ goto err_deinit_hw;
+ }
+
+ hw->fb[0] = info;
+
+ info = NULL;
+ if (fb_displays & CARMINE_USE_DISPLAY1) {
+ ret = alloc_carmine_fb(hw->v_regs + CARMINE_DISP1_REG,
+ hw->screen_mem, CARMINE_DISPLAY_MEM * 1,
+ device, &info);
+ if (ret)
+ goto err_cleanup_fb0;
+ }
+
+ hw->fb[1] = info;
+ info = NULL;
+
+ pci_set_drvdata(dev, hw);
+ return 0;
+
+err_cleanup_fb0:
+ cleanup_fb_device(hw->fb[0]);
+err_deinit_hw:
+ /* disable clock, etc */
+ c_set_hw_reg(hw, CARMINE_CTL_REG + CARMINE_CTL_REG_CLOCK_ENABLE, 0);
+err_unmap_screen:
+ iounmap(hw->screen_mem);
+err_reg_smem:
+ release_mem_region(carminefb_fix.mmio_start, carminefb_fix.mmio_len);
+err_unmap_vregs:
+ iounmap(hw->v_regs);
+err_free_reg_mmio:
+ release_mem_region(carminefb_fix.mmio_start, carminefb_fix.mmio_len);
+err_free_hw:
+ kfree(hw);
+err_enable_pci:
+ pci_disable_device(dev);
+ return ret;
+}
+
+static void __devexit carminefb_remove(struct pci_dev *dev)
+{
+ struct carmine_hw *hw = pci_get_drvdata(dev);
+ struct fb_fix_screeninfo fix;
+ int i;
+
+ /* in case we use only fb1 and not fb1 */
+ if (hw->fb[0])
+ fix = hw->fb[0]->fix;
+ else
+ fix = hw->fb[1]->fix;
+
+ /* deactivate display(s) and switch clocks */
+ c_set_hw_reg(hw, CARMINE_DISP0_REG + CARMINE_DISP_REG_DCM1, 0);
+ c_set_hw_reg(hw, CARMINE_DISP1_REG + CARMINE_DISP_REG_DCM1, 0);
+ c_set_hw_reg(hw, CARMINE_CTL_REG + CARMINE_CTL_REG_CLOCK_ENABLE, 0);
+
+ for (i = 0; i < MAX_DISPLAY; i++)
+ cleanup_fb_device(hw->fb[i]);
+
+ iounmap(hw->screen_mem);
+ release_mem_region(fix.smem_start, fix.smem_len);
+ iounmap(hw->v_regs);
+ release_mem_region(fix.mmio_start, fix.mmio_len);
+
+ pci_set_drvdata(dev, NULL);
+ pci_disable_device(dev);
+ kfree(hw);
+}
+
+#define PCI_VENDOR_ID_FUJITU_LIMITED 0x10cf
+static struct pci_device_id carmine_devices[] __devinitdata = {
+{
+ PCI_DEVICE(PCI_VENDOR_ID_FUJITU_LIMITED, 0x202b)},
+ {0, 0, 0, 0, 0, 0, 0}
+};
+
+MODULE_DEVICE_TABLE(pci, carmine_devices);
+
+static struct pci_driver carmine_pci_driver = {
+ .name = "carminefb",
+ .id_table = carmine_devices,
+ .probe = carminefb_probe,
+ .remove = __devexit_p(carminefb_remove),
+};
+
+static int __init carminefb_init(void)
+{
+ if (!(fb_displays &
+ (CARMINE_USE_DISPLAY0 | CARMINE_USE_DISPLAY1))) {
+ printk(KERN_ERR "If you disable both displays than you don't "
+ "need the driver at all\n");
+ return -EINVAL;
+ }
+ return pci_register_driver(&carmine_pci_driver);
+}
+module_init(carminefb_init);
+
+static void __exit carminefb_cleanup(void)
+{
+ pci_unregister_driver(&carmine_pci_driver);
+}
+module_exit(carminefb_cleanup);
+
+MODULE_AUTHOR("Sebastian Siewior <bigeasy@linutronix.de>");
+MODULE_DESCRIPTION("Framebuffer driver for Fujitsu Carmine based devices");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+#ifndef CARMINE_CARMINE_H
+#define CARMINE_CARMINE_H
+
+#define CARMINE_MEMORY_BAR 2
+#define CARMINE_CONFIG_BAR 3
+
+#define MAX_DISPLAY 2
+#define CARMINE_DISPLAY_MEM (800 * 600 * 4)
+#define CARMINE_TOTAL_DIPLAY_MEM (CARMINE_DISPLAY_MEM * MAX_DISPLAY)
+
+#define CARMINE_USE_DISPLAY0 (1 << 0)
+#define CARMINE_USE_DISPLAY1 (1 << 1)
+
+/*
+ * This values work on the eval card. Custom boards may use different timings,
+ * here an example :)
+ */
+
+/* DRAM initialization values */
+#ifdef CONFIG_FB_CARMINE_DRAM_EVAL
+
+#define CARMINE_DFLT_IP_CLOCK_ENABLE (0x03ff)
+#define CARMINE_DFLT_IP_DCTL_ADD (0x05c3)
+#define CARMINE_DFLT_IP_DCTL_MODE (0x0121)
+#define CARMINE_DFLT_IP_DCTL_EMODE (0x8000)
+#define CARMINE_DFLT_IP_DCTL_SET_TIME1 (0x4749)
+#define CARMINE_DFLT_IP_DCTL_SET_TIME2 (0x2a22)
+#define CARMINE_DFLT_IP_DCTL_REFRESH (0x0042)
+#define CARMINE_DFLT_IP_DCTL_STATES (0x0003)
+#define CARMINE_DFLT_IP_DCTL_RESERVE0 (0x0020)
+#define CARMINE_DFLT_IP_DCTL_FIFO_DEPTH (0x000f)
+#define CARMINE_DFLT_IP_DCTL_RESERVE2 (0x0000)
+#define CARMINE_DFLT_IP_DCTL_DDRIF1 (0x6646)
+#define CARMINE_DFLT_IP_DCTL_DDRIF2 (0x0055)
+#define CARMINE_DFLT_IP_DCTL_MODE_AFT_RST (0x0021)
+#define CARMINE_DFLT_IP_DCTL_STATES_AFT_RST (0x0002)
+#define CARMINE_DFLT_IP_DCTL_IO_CONT0 (0x0555)
+#define CARMINE_DFLT_IP_DCTL_IO_CONT1 (0x0555)
+#define CARMINE_DCTL_DLL_RESET (1)
+#endif
+
+#ifdef CONFIG_CARMINE_DRAM_CUSTOM
+
+#define CARMINE_DFLT_IP_CLOCK_ENABLE (0x03ff)
+#define CARMINE_DFLT_IP_DCTL_ADD (0x03b2)
+#define CARMINE_DFLT_IP_DCTL_MODE (0x0161)
+#define CARMINE_DFLT_IP_DCTL_EMODE (0x8000)
+#define CARMINE_DFLT_IP_DCTL_SET_TIME1 (0x2628)
+#define CARMINE_DFLT_IP_DCTL_SET_TIME2 (0x1a09)
+#define CARMINE_DFLT_IP_DCTL_REFRESH (0x00fe)
+#define CARMINE_DFLT_IP_DCTL_STATES (0x0003)
+#define CARMINE_DFLT_IP_DCTL_RESERVE0 (0x0020)
+#define CARMINE_DFLT_IP_DCTL_FIFO_DEPTH (0x000f)
+#define CARMINE_DFLT_IP_DCTL_RESERVE2 (0x0000)
+#define CARMINE_DFLT_IP_DCTL_DDRIF1 (0x0646)
+#define CARMINE_DFLT_IP_DCTL_DDRIF2 (0x55aa)
+#define CARMINE_DFLT_IP_DCTL_MODE_AFT_RST (0x0061)
+#define CARMINE_DFLT_IP_DCTL_STATES_AFT_RST (0x0002)
+#define CARMINE_DFLT_IP_DCTL_IO_CONT0 (0x0555)
+#define CARMINE_DFLT_IP_DCTL_IO_CONT1 (0x0555)
+#define CARMINE_DCTL_DLL_RESET (1)
+#endif
+
+#endif
--- /dev/null
+#ifndef _CARMINEFB_REGS_H
+#define _CARMINEFB_REGS_H
+
+#define CARMINE_OVERLAY_EXT_MODE (0x00000002)
+#define CARMINE_GRAPH_REG (0x00000000)
+#define CARMINE_DISP0_REG (0x00100000)
+#define CARMINE_DISP1_REG (0x00140000)
+#define CARMINE_WB_REG (0x00180000)
+#define CARMINE_DCTL_REG (0x00300000)
+#define CARMINE_CTL_REG (0x00400000)
+#define CARMINE_WINDOW_MODE (0x00000001)
+#define CARMINE_EXTEND_MODE (CARMINE_WINDOW_MODE | \
+ CARMINE_OVERLAY_EXT_MODE)
+#define CARMINE_L0E (1 << 16)
+#define CARMINE_L2E (1 << 18)
+#define CARMINE_DEN (1 << 31)
+
+#define CARMINE_EXT_CMODE_DIRECT24_RGBA (0xC0000000)
+#define CARMINE_DCTL_REG_MODE_ADD (0x00)
+#define CARMINE_DCTL_REG_SETTIME1_EMODE (0x04)
+#define CARMINE_DCTL_REG_REFRESH_SETTIME2 (0x08)
+#define CARMINE_DCTL_REG_RSV0_STATES (0x0C)
+#define CARMINE_DCTL_REG_RSV2_RSV1 (0x10)
+#define CARMINE_DCTL_REG_DDRIF2_DDRIF1 (0x14)
+#define CARMINE_DCTL_REG_IOCONT1_IOCONT0 (0x24)
+#define CARMINE_DCTL_REG_STATES_MASK (0x000F)
+#define CARMINE_DCTL_INIT_WAIT_INTERVAL (1)
+#define CARMINE_DCTL_INIT_WAIT_LIMIT (5000)
+#define CARMINE_WB_REG_WBM_DEFAULT (0x0001c020)
+#define CARMINE_DISP_REG_L0RM (0x1880)
+#define CARMINE_DISP_REG_L0PX (0x1884)
+#define CARMINE_DISP_REG_L0PY (0x1888)
+#define CARMINE_DISP_REG_L2RM (0x18A0)
+#define CARMINE_DISP_REG_L2PX (0x18A4)
+#define CARMINE_DISP_REG_L2PY (0x18A8)
+#define CARMINE_DISP_REG_L3RM (0x18B0)
+#define CARMINE_DISP_REG_L3PX (0x18B4)
+#define CARMINE_DISP_REG_L3PY (0x18B8)
+#define CARMINE_DISP_REG_L4RM (0x18C0)
+#define CARMINE_DISP_REG_L4PX (0x18C4)
+#define CARMINE_DISP_REG_L4PY (0x18C8)
+#define CARMINE_DISP_REG_L5RM (0x18D0)
+#define CARMINE_DISP_REG_L5PX (0x18D4)
+#define CARMINE_DISP_REG_L5PY (0x18D8)
+#define CARMINE_DISP_REG_L6RM (0x1924)
+#define CARMINE_DISP_REG_L6PX (0x1928)
+#define CARMINE_DISP_REG_L6PY (0x192C)
+#define CARMINE_DISP_REG_L7RM (0x1964)
+#define CARMINE_DISP_REG_L7PX (0x1968)
+#define CARMINE_DISP_REG_L7PY (0x196C)
+#define CARMINE_WB_REG_WBM (0x0004)
+#define CARMINE_DISP_HTP_SHIFT (16)
+#define CARMINE_DISP_HDB_SHIFT (16)
+#define CARMINE_DISP_HSW_SHIFT (16)
+#define CARMINE_DISP_VSW_SHIFT (24)
+#define CARMINE_DISP_VTR_SHIFT (16)
+#define CARMINE_DISP_VDP_SHIFT (16)
+#define CARMINE_CURSOR_CUTZ_MASK (0x00000100)
+#define CARMINE_CURSOR0_PRIORITY_MASK (0x00010000)
+#define CARMINE_CURSOR1_PRIORITY_MASK (0x00020000)
+#define CARMINE_DISP_WIDTH_SHIFT (16)
+#define CARMINE_DISP_WIN_H_SHIFT (16)
+#define CARMINE_DISP_REG_H_TOTAL (0x0004)
+#define CARMINE_DISP_REG_H_PERIOD (0x0008)
+#define CARMINE_DISP_REG_V_H_W_H_POS (0x000C)
+#define CARMINE_DISP_REG_V_TOTAL (0x0010)
+#define CARMINE_DISP_REG_V_PERIOD_POS (0x0014)
+#define CARMINE_DISP_REG_L0_MODE_W_H (0x0020)
+#define CARMINE_DISP_REG_L0_ORG_ADR (0x0024)
+#define CARMINE_DISP_REG_L0_DISP_ADR (0x0028)
+#define CARMINE_DISP_REG_L0_DISP_POS (0x002C)
+#define CARMINE_DISP_REG_L1_WIDTH (0x0030)
+#define CARMINE_DISP_REG_L1_ORG_ADR (0x0034)
+#define CARMINE_DISP_REG_L2_MODE_W_H (0x0040)
+#define CARMINE_DISP_REG_L2_ORG_ADR1 (0x0044)
+#define CARMINE_DISP_REG_L2_DISP_ADR1 (0x0048)
+#define CARMINE_DISP_REG_L2_DISP_POS (0x0054)
+#define CARMINE_DISP_REG_L3_MODE_W_H (0x0058)
+#define CARMINE_DISP_REG_L3_ORG_ADR1 (0x005C)
+#define CARMINE_DISP_REG_L3_DISP_ADR1 (0x0060)
+#define CARMINE_DISP_REG_L3_DISP_POS (0x006C)
+#define CARMINE_DISP_REG_L4_MODE_W_H (0x0070)
+#define CARMINE_DISP_REG_L4_ORG_ADR1 (0x0074)
+#define CARMINE_DISP_REG_L4_DISP_ADR1 (0x0078)
+#define CARMINE_DISP_REG_L4_DISP_POS (0x0084)
+#define CARMINE_DISP_REG_L5_MODE_W_H (0x0088)
+#define CARMINE_DISP_REG_L5_ORG_ADR1 (0x008C)
+#define CARMINE_DISP_REG_L5_DISP_ADR1 (0x0090)
+#define CARMINE_DISP_REG_L5_DISP_POS (0x009C)
+#define CARMINE_DISP_REG_CURSOR_MODE (0x00A0)
+#define CARMINE_DISP_REG_CUR1_POS (0x00A8)
+#define CARMINE_DISP_REG_CUR2_POS (0x00B0)
+#define CARMINE_DISP_REG_C_TRANS (0x00BC)
+#define CARMINE_DISP_REG_MLMR_TRANS (0x00C0)
+#define CARMINE_DISP_REG_L0_EXT_MODE (0x0110)
+#define CARMINE_DISP_REG_L0_WIN_POS (0x0114)
+#define CARMINE_DISP_REG_L0_WIN_SIZE (0x0118)
+#define CARMINE_DISP_REG_L1_EXT_MODE (0x0120)
+#define CARMINE_DISP_REG_L1_WIN_POS (0x0124)
+#define CARMINE_DISP_REG_L1_WIN_SIZE (0x0128)
+#define CARMINE_DISP_REG_L2_EXT_MODE (0x0130)
+#define CARMINE_DISP_REG_L2_WIN_POS (0x0134)
+#define CARMINE_DISP_REG_L2_WIN_SIZE (0x0138)
+#define CARMINE_DISP_REG_L3_EXT_MODE (0x0140)
+#define CARMINE_DISP_REG_L3_WIN_POS (0x0144)
+#define CARMINE_DISP_REG_L3_WIN_SIZE (0x0148)
+#define CARMINE_DISP_REG_L4_EXT_MODE (0x0150)
+#define CARMINE_DISP_REG_L4_WIN_POS (0x0154)
+#define CARMINE_DISP_REG_L4_WIN_SIZE (0x0158)
+#define CARMINE_DISP_REG_L5_EXT_MODE (0x0160)
+#define CARMINE_DISP_REG_L5_WIN_POS (0x0164)
+#define CARMINE_DISP_REG_L5_WIN_SIZE (0x0168)
+#define CARMINE_DISP_REG_L6_EXT_MODE (0x1918)
+#define CARMINE_DISP_REG_L6_WIN_POS (0x191c)
+#define CARMINE_DISP_REG_L6_WIN_SIZE (0x1920)
+#define CARMINE_DISP_REG_L7_EXT_MODE (0x1958)
+#define CARMINE_DISP_REG_L7_WIN_POS (0x195c)
+#define CARMINE_DISP_REG_L7_WIN_SIZE (0x1960)
+#define CARMINE_DISP_REG_BLEND_MODE_L0 (0x00B4)
+#define CARMINE_DISP_REG_BLEND_MODE_L1 (0x0188)
+#define CARMINE_DISP_REG_BLEND_MODE_L2 (0x018C)
+#define CARMINE_DISP_REG_BLEND_MODE_L3 (0x0190)
+#define CARMINE_DISP_REG_BLEND_MODE_L4 (0x0194)
+#define CARMINE_DISP_REG_BLEND_MODE_L5 (0x0198)
+#define CARMINE_DISP_REG_BLEND_MODE_L6 (0x1990)
+#define CARMINE_DISP_REG_BLEND_MODE_L7 (0x1994)
+#define CARMINE_DISP_REG_L0_TRANS (0x01A0)
+#define CARMINE_DISP_REG_L1_TRANS (0x01A4)
+#define CARMINE_DISP_REG_L2_TRANS (0x01A8)
+#define CARMINE_DISP_REG_L3_TRANS (0x01AC)
+#define CARMINE_DISP_REG_L4_TRANS (0x01B0)
+#define CARMINE_DISP_REG_L5_TRANS (0x01B4)
+#define CARMINE_DISP_REG_L6_TRANS (0x1998)
+#define CARMINE_DISP_REG_L7_TRANS (0x199c)
+#define CARMINE_EXTEND_MODE_MASK (0x00000003)
+#define CARMINE_DISP_DCM_MASK (0x0000FFFF)
+#define CARMINE_DISP_REG_DCM1 (0x0100)
+#define CARMINE_DISP_WIDTH_UNIT (64)
+#define CARMINE_DISP_REG_L6_MODE_W_H (0x1900)
+#define CARMINE_DISP_REG_L6_ORG_ADR1 (0x1904)
+#define CARMINE_DISP_REG_L6_DISP_ADR0 (0x1908)
+#define CARMINE_DISP_REG_L6_DISP_POS (0x1914)
+#define CARMINE_DISP_REG_L7_MODE_W_H (0x1940)
+#define CARMINE_DISP_REG_L7_ORG_ADR1 (0x1944)
+#define CARMINE_DISP_REG_L7_DISP_ADR0 (0x1948)
+#define CARMINE_DISP_REG_L7_DISP_POS (0x1954)
+#define CARMINE_CTL_REG_CLOCK_ENABLE (0x000C)
+#define CARMINE_CTL_REG_SOFTWARE_RESET (0x0010)
+#define CARMINE_CTL_REG_IST_MASK_ALL (0x07FFFFFF)
+#define CARMINE_GRAPH_REG_VRINTM (0x00028064)
+#define CARMINE_GRAPH_REG_VRERRM (0x0002806C)
+#define CARMINE_GRAPH_REG_DC_OFFSET_PX (0x0004005C)
+#define CARMINE_GRAPH_REG_DC_OFFSET_PY (0x00040060)
+#define CARMINE_GRAPH_REG_DC_OFFSET_LX (0x00040064)
+#define CARMINE_GRAPH_REG_DC_OFFSET_LY (0x00040068)
+#define CARMINE_GRAPH_REG_DC_OFFSET_TX (0x0004006C)
+#define CARMINE_GRAPH_REG_DC_OFFSET_TY (0x00040070)
+
+#endif
--- /dev/null
+/*
+ * Cobalt server LCD frame buffer driver.
+ *
+ * Copyright (C) 2008 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/uaccess.h>
+#include <linux/platform_device.h>
+
+/*
+ * Cursor position address
+ * \X 0 1 2 ... 14 15
+ * Y+----+----+----+---+----+----+
+ * 0|0x00|0x01|0x02|...|0x0e|0x0f|
+ * +----+----+----+---+----+----+
+ * 1|0x40|0x41|0x42|...|0x4e|0x4f|
+ * +----+----+----+---+----+----+
+ */
+#define LCD_DATA_REG_OFFSET 0x10
+#define LCD_XRES_MAX 16
+#define LCD_YRES_MAX 2
+#define LCD_CHARS_MAX 32
+
+#define LCD_CLEAR 0x01
+#define LCD_CURSOR_MOVE_HOME 0x02
+#define LCD_RESET 0x06
+#define LCD_OFF 0x08
+#define LCD_CURSOR_OFF 0x0c
+#define LCD_CURSOR_BLINK_OFF 0x0e
+#define LCD_CURSOR_ON 0x0f
+#define LCD_ON LCD_CURSOR_ON
+#define LCD_CURSOR_MOVE_LEFT 0x10
+#define LCD_CURSOR_MOVE_RIGHT 0x14
+#define LCD_DISPLAY_LEFT 0x18
+#define LCD_DISPLAY_RIGHT 0x1c
+#define LCD_PRERESET 0x3f /* execute 4 times continuously */
+#define LCD_BUSY 0x80
+
+#define LCD_GRAPHIC_MODE 0x40
+#define LCD_TEXT_MODE 0x80
+#define LCD_CUR_POS_MASK 0x7f
+
+#define LCD_CUR_POS(x) ((x) & LCD_CUR_POS_MASK)
+#define LCD_TEXT_POS(x) ((x) | LCD_TEXT_MODE)
+
+static inline void lcd_write_control(struct fb_info *info, u8 control)
+{
+ writel((u32)control << 24, info->screen_base);
+}
+
+static inline u8 lcd_read_control(struct fb_info *info)
+{
+ return readl(info->screen_base) >> 24;
+}
+
+static inline void lcd_write_data(struct fb_info *info, u8 data)
+{
+ writel((u32)data << 24, info->screen_base + LCD_DATA_REG_OFFSET);
+}
+
+static inline u8 lcd_read_data(struct fb_info *info)
+{
+ return readl(info->screen_base + LCD_DATA_REG_OFFSET) >> 24;
+}
+
+static int lcd_busy_wait(struct fb_info *info)
+{
+ u8 val = 0;
+ int timeout = 10, retval = 0;
+
+ do {
+ val = lcd_read_control(info);
+ val &= LCD_BUSY;
+ if (val != LCD_BUSY)
+ break;
+
+ if (msleep_interruptible(1))
+ return -EINTR;
+
+ timeout--;
+ } while (timeout);
+
+ if (val == LCD_BUSY)
+ retval = -EBUSY;
+
+ return retval;
+}
+
+static void lcd_clear(struct fb_info *info)
+{
+ int i;
+
+ for (i = 0; i < 4; i++) {
+ udelay(150);
+
+ lcd_write_control(info, LCD_PRERESET);
+ }
+
+ udelay(150);
+
+ lcd_write_control(info, LCD_CLEAR);
+
+ udelay(150);
+
+ lcd_write_control(info, LCD_RESET);
+}
+
+static struct fb_fix_screeninfo cobalt_lcdfb_fix __initdata = {
+ .id = "cobalt-lcd",
+ .type = FB_TYPE_TEXT,
+ .type_aux = FB_AUX_TEXT_MDA,
+ .visual = FB_VISUAL_MONO01,
+ .line_length = LCD_XRES_MAX,
+ .accel = FB_ACCEL_NONE,
+};
+
+static ssize_t cobalt_lcdfb_read(struct fb_info *info, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ char src[LCD_CHARS_MAX];
+ unsigned long pos;
+ int len, retval = 0;
+
+ pos = *ppos;
+ if (pos >= LCD_CHARS_MAX || count == 0)
+ return 0;
+
+ if (count > LCD_CHARS_MAX)
+ count = LCD_CHARS_MAX;
+
+ if (pos + count > LCD_CHARS_MAX)
+ count = LCD_CHARS_MAX - pos;
+
+ for (len = 0; len < count; len++) {
+ retval = lcd_busy_wait(info);
+ if (retval < 0)
+ break;
+
+ lcd_write_control(info, LCD_TEXT_POS(pos));
+
+ retval = lcd_busy_wait(info);
+ if (retval < 0)
+ break;
+
+ src[len] = lcd_read_data(info);
+ if (pos == 0x0f)
+ pos = 0x40;
+ else
+ pos++;
+ }
+
+ if (retval < 0 && signal_pending(current))
+ return -ERESTARTSYS;
+
+ if (copy_to_user(buf, src, len))
+ return -EFAULT;
+
+ *ppos += len;
+
+ return len;
+}
+
+static ssize_t cobalt_lcdfb_write(struct fb_info *info, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ char dst[LCD_CHARS_MAX];
+ unsigned long pos;
+ int len, retval = 0;
+
+ pos = *ppos;
+ if (pos >= LCD_CHARS_MAX || count == 0)
+ return 0;
+
+ if (count > LCD_CHARS_MAX)
+ count = LCD_CHARS_MAX;
+
+ if (pos + count > LCD_CHARS_MAX)
+ count = LCD_CHARS_MAX - pos;
+
+ if (copy_from_user(dst, buf, count))
+ return -EFAULT;
+
+ for (len = 0; len < count; len++) {
+ retval = lcd_busy_wait(info);
+ if (retval < 0)
+ break;
+
+ lcd_write_control(info, LCD_TEXT_POS(pos));
+
+ retval = lcd_busy_wait(info);
+ if (retval < 0)
+ break;
+
+ lcd_write_data(info, dst[len]);
+ if (pos == 0x0f)
+ pos = 0x40;
+ else
+ pos++;
+ }
+
+ if (retval < 0 && signal_pending(current))
+ return -ERESTARTSYS;
+
+ *ppos += len;
+
+ return len;
+}
+
+static int cobalt_lcdfb_blank(int blank_mode, struct fb_info *info)
+{
+ int retval;
+
+ retval = lcd_busy_wait(info);
+ if (retval < 0)
+ return retval;
+
+ switch (blank_mode) {
+ case FB_BLANK_UNBLANK:
+ lcd_write_control(info, LCD_ON);
+ break;
+ default:
+ lcd_write_control(info, LCD_OFF);
+ break;
+ }
+
+ return 0;
+}
+
+static int cobalt_lcdfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
+{
+ u32 x, y;
+ int retval;
+
+ switch (cursor->set) {
+ case FB_CUR_SETPOS:
+ x = cursor->image.dx;
+ y = cursor->image.dy;
+ if (x >= LCD_XRES_MAX || y >= LCD_YRES_MAX)
+ return -EINVAL;
+
+ retval = lcd_busy_wait(info);
+ if (retval < 0)
+ return retval;
+
+ lcd_write_control(info,
+ LCD_TEXT_POS(info->fix.line_length * y + x));
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ retval = lcd_busy_wait(info);
+ if (retval < 0)
+ return retval;
+
+ if (cursor->enable)
+ lcd_write_control(info, LCD_CURSOR_ON);
+ else
+ lcd_write_control(info, LCD_CURSOR_OFF);
+
+ return 0;
+}
+
+static struct fb_ops cobalt_lcd_fbops = {
+ .owner = THIS_MODULE,
+ .fb_read = cobalt_lcdfb_read,
+ .fb_write = cobalt_lcdfb_write,
+ .fb_blank = cobalt_lcdfb_blank,
+ .fb_cursor = cobalt_lcdfb_cursor,
+};
+
+static int __init cobalt_lcdfb_probe(struct platform_device *dev)
+{
+ struct fb_info *info;
+ struct resource *res;
+ int retval;
+
+ info = framebuffer_alloc(0, &dev->dev);
+ if (!info)
+ return -ENOMEM;
+
+ res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+ if (!res) {
+ framebuffer_release(info);
+ return -EBUSY;
+ }
+
+ info->screen_size = res->end - res->start + 1;
+ info->screen_base = ioremap(res->start, info->screen_size);
+ info->fbops = &cobalt_lcd_fbops;
+ info->fix = cobalt_lcdfb_fix;
+ info->fix.smem_start = res->start;
+ info->fix.smem_len = info->screen_size;
+ info->pseudo_palette = NULL;
+ info->par = NULL;
+ info->flags = FBINFO_DEFAULT;
+
+ retval = register_framebuffer(info);
+ if (retval < 0) {
+ iounmap(info->screen_base);
+ framebuffer_release(info);
+ return retval;
+ }
+
+ platform_set_drvdata(dev, info);
+
+ lcd_clear(info);
+
+ printk(KERN_INFO "fb%d: Cobalt server LCD frame buffer device\n",
+ info->node);
+
+ return 0;
+}
+
+static int __devexit cobalt_lcdfb_remove(struct platform_device *dev)
+{
+ struct fb_info *info;
+
+ info = platform_get_drvdata(dev);
+ if (info) {
+ iounmap(info->screen_base);
+ unregister_framebuffer(info);
+ framebuffer_release(info);
+ }
+
+ return 0;
+}
+
+static struct platform_driver cobalt_lcdfb_driver = {
+ .probe = cobalt_lcdfb_probe,
+ .remove = __devexit_p(cobalt_lcdfb_remove),
+ .driver = {
+ .name = "cobalt-lcd",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init cobalt_lcdfb_init(void)
+{
+ return platform_driver_register(&cobalt_lcdfb_driver);
+}
+
+static void __exit cobalt_lcdfb_exit(void)
+{
+ platform_driver_unregister(&cobalt_lcdfb_driver);
+}
+
+module_init(cobalt_lcdfb_init);
+module_exit(cobalt_lcdfb_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Yoichi Yuasa");
+MODULE_DESCRIPTION("Cobalt server LCD frame buffer driver");
static signed char con2fb_map[MAX_NR_CONSOLES];
static signed char con2fb_map_boot[MAX_NR_CONSOLES];
-#ifndef MODULE
-static int logo_height;
-#endif
+
static int logo_lines;
/* logo_shown is an index to vc_cons when >= 0; otherwise follows FBCON_LOGO
enums. */
struct fbcon_ops *ops = info->fbcon_par;
int cnt, erase = vc->vc_video_erase_char, step;
unsigned short *save = NULL, *r, *q;
+ int logo_height;
if (info->flags & FBINFO_MODULE) {
logo_shown = FBCON_LOGO_DONTSHOW;
#define attr_fgcol(fgshift,s) \
(((s) >> (fgshift)) & 0x0f)
#define attr_bgcol(bgshift,s) \
- (((s) >> (bgshift)) & 0x0f)
+ (((s) >> (bgshift)) & 0x07)
/* Monochrome */
#define attr_bold(s) \
return is_fg ? fg : bg;
}
-#define attr_bgcol_ec(bgshift,vc,info) \
- attr_col_ec(bgshift,vc,info,0);
-#define attr_fgcol_ec(fgshift,vc,info) \
- attr_col_ec(fgshift,vc,info,1);
+#define attr_bgcol_ec(bgshift, vc, info) attr_col_ec(bgshift, vc, info, 0)
+#define attr_fgcol_ec(fgshift, vc, info) attr_col_ec(fgshift, vc, info, 1)
/* Font */
#define REFCOUNT(fd) (((int *)(fd))[-1])
/* console information */
-static int mda_first_vc = 1;
+static int mda_first_vc = 13;
static int mda_last_vc = 16;
static struct vc_data *mda_display_fg = NULL;
module_param(mda_first_vc, int, 0);
+MODULE_PARM_DESC(mda_first_vc, "First virtual console. Default: 13");
module_param(mda_last_vc, int, 0);
+MODULE_PARM_DESC(mda_last_vc, "Last virtual console. Default: 16");
/* MDA register values
*/
#include <linux/device.h>
#include <linux/efi.h>
#include <linux/fb.h>
+#include <linux/major.h>
#include <asm/fb.h>
fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var)
{
struct fb_fix_screeninfo *fix = &info->fix;
- int xoffset = var->xoffset;
- int yoffset = var->yoffset;
- int err = 0, yres = info->var.yres;
+ unsigned int yres = info->var.yres;
+ int err = 0;
if (var->yoffset > 0) {
if (var->vmode & FB_VMODE_YWRAP) {
(var->xoffset % fix->xpanstep)))
err = -EINVAL;
- if (err || !info->fbops->fb_pan_display || xoffset < 0 ||
- yoffset < 0 || var->yoffset + yres > info->var.yres_virtual ||
+ if (err || !info->fbops->fb_pan_display ||
+ var->yoffset + yres > info->var.yres_virtual ||
var->xoffset + info->var.xres > info->var.xres_virtual)
return -EINVAL;
if (edid_is_timing_block(block)) {
var->xres = var->xres_virtual = H_ACTIVE;
var->yres = var->yres_virtual = V_ACTIVE;
- var->height = var->width = -1;
+ var->height = var->width = 0;
var->right_margin = H_SYNC_OFFSET;
var->left_margin = (H_ACTIVE + H_BLANKING) -
(H_ACTIVE + H_SYNC_OFFSET + H_SYNC_WIDTH);
static struct diu_pool pool;
-/* To allocate memory for framebuffer. First try __get_free_pages(). If it
- * fails, try rh_alloc. The reason is __get_free_pages() cannot allocate
- * very large memory (more than 4MB). We don't want to allocate all memory
- * in rheap since small memory allocation/deallocation will fragment the
- * rheap and make the furture large allocation fail.
+/**
+ * fsl_diu_alloc - allocate memory for the DIU
+ * @size: number of bytes to allocate
+ * @param: returned physical address of memory
+ *
+ * This function allocates a physically-contiguous block of memory.
*/
-
-static void *fsl_diu_alloc(unsigned long size, phys_addr_t *phys)
+static void *fsl_diu_alloc(size_t size, phys_addr_t *phys)
{
void *virt;
- pr_debug("size=%lu\n", size);
+ pr_debug("size=%zu\n", size);
- virt = (void *)__get_free_pages(GFP_DMA | __GFP_ZERO, get_order(size));
+ virt = alloc_pages_exact(size, GFP_DMA | __GFP_ZERO);
if (virt) {
*phys = virt_to_phys(virt);
- pr_debug("virt %p, phys=%llx\n", virt, (uint64_t) *phys);
- return virt;
- }
- if (!diu_ops.diu_mem) {
- printk(KERN_INFO "%s: no diu_mem."
- " To reserve more memory, put 'diufb=15M' "
- "in the command line\n", __func__);
- return NULL;
- }
-
- virt = (void *)rh_alloc(&diu_ops.diu_rh_info, size, "DIU");
- if (virt) {
- *phys = virt_to_bus(virt);
- memset(virt, 0, size);
+ pr_debug("virt=%p phys=%llx\n", virt,
+ (unsigned long long)*phys);
}
- pr_debug("rh virt=%p phys=%llx\n", virt, (unsigned long long)*phys);
-
return virt;
}
-static void fsl_diu_free(void *p, unsigned long size)
+/**
+ * fsl_diu_free - release DIU memory
+ * @virt: pointer returned by fsl_diu_alloc()
+ * @size: number of bytes allocated by fsl_diu_alloc()
+ *
+ * This function releases memory allocated by fsl_diu_alloc().
+ */
+static void fsl_diu_free(void *virt, size_t size)
{
- pr_debug("p=%p size=%lu\n", p, size);
+ pr_debug("virt=%p size=%zu\n", virt, size);
- if (!p)
- return;
-
- if ((p >= diu_ops.diu_mem) &&
- (p < (diu_ops.diu_mem + diu_ops.diu_size))) {
- pr_debug("rh\n");
- rh_free(&diu_ops.diu_rh_info, (unsigned long) p);
- } else {
- pr_debug("dma\n");
- free_pages((unsigned long)p, get_order(size));
- }
+ if (virt && size)
+ free_pages_exact(virt, size);
}
static int fsl_diu_enable_panel(struct fb_info *info)
}
void lx_set_mode(struct fb_info *);
-void lx_get_gamma(struct fb_info *, unsigned int *, int);
-void lx_set_gamma(struct fb_info *, unsigned int *, int);
unsigned int lx_framebuffer_size(void);
int lx_blank_display(struct fb_info *, int);
void lx_set_palette_reg(struct fb_info *, unsigned int, unsigned int,
int lx_blank_display(struct fb_info *info, int blank_mode)
{
struct lxfb_par *par = info->par;
- u32 dcfg, fp_pm;
- int blank, hsync, vsync, crt;
+ u32 dcfg, misc, fp_pm;
+ int blank, hsync, vsync;
/* CRT power saving modes. */
switch (blank_mode) {
case FB_BLANK_UNBLANK:
- blank = 0; hsync = 1; vsync = 1; crt = 1;
+ blank = 0; hsync = 1; vsync = 1;
break;
case FB_BLANK_NORMAL:
- blank = 1; hsync = 1; vsync = 1; crt = 1;
+ blank = 1; hsync = 1; vsync = 1;
break;
case FB_BLANK_VSYNC_SUSPEND:
- blank = 1; hsync = 1; vsync = 0; crt = 1;
+ blank = 1; hsync = 1; vsync = 0;
break;
case FB_BLANK_HSYNC_SUSPEND:
- blank = 1; hsync = 0; vsync = 1; crt = 1;
+ blank = 1; hsync = 0; vsync = 1;
break;
case FB_BLANK_POWERDOWN:
- blank = 1; hsync = 0; vsync = 0; crt = 0;
+ blank = 1; hsync = 0; vsync = 0;
break;
default:
return -EINVAL;
dcfg &= ~(VP_DCFG_DAC_BL_EN | VP_DCFG_HSYNC_EN | VP_DCFG_VSYNC_EN |
VP_DCFG_CRT_EN);
if (!blank)
- dcfg |= VP_DCFG_DAC_BL_EN;
+ dcfg |= VP_DCFG_DAC_BL_EN | VP_DCFG_CRT_EN;
if (hsync)
dcfg |= VP_DCFG_HSYNC_EN;
if (vsync)
dcfg |= VP_DCFG_VSYNC_EN;
- if (crt)
- dcfg |= VP_DCFG_CRT_EN;
+
write_vp(par, VP_DCFG, dcfg);
+ misc = read_vp(par, VP_MISC);
+
+ if (vsync && hsync)
+ misc &= ~VP_MISC_DACPWRDN;
+ else
+ misc |= VP_MISC_DACPWRDN;
+
+ write_vp(par, VP_MISC, misc);
+
/* Power on/off flat panel */
if (par->output & OUTPUT_PANEL) {
* Initialization
*/
-static int __init hgafb_probe(struct device *device)
+static int __init hgafb_probe(struct platform_device *pdev)
{
struct fb_info *info;
printk(KERN_INFO "hgafb: %s with %ldK of memory detected.\n",
hga_type_name, hga_vram_len/1024);
- info = framebuffer_alloc(0, NULL);
+ info = framebuffer_alloc(0, &pdev->dev);
if (!info) {
iounmap(hga_vram);
return -ENOMEM;
printk(KERN_INFO "fb%d: %s frame buffer device\n",
info->node, info->fix.id);
- dev_set_drvdata(device, info);
+ platform_set_drvdata(pdev, info);
return 0;
}
-static int hgafb_remove(struct device *device)
+static int hgafb_remove(struct platform_device *pdev)
{
- struct fb_info *info = dev_get_drvdata(device);
+ struct fb_info *info = platform_get_drvdata(pdev);
hga_txt_mode();
hga_clear_screen();
return 0;
}
-static struct device_driver hgafb_driver = {
- .name = "hgafb",
- .bus = &platform_bus_type,
+static struct platform_driver hgafb_driver = {
.probe = hgafb_probe,
.remove = hgafb_remove,
+ .driver = {
+ .name = "hgafb",
+ },
};
-static struct platform_device hgafb_device = {
- .name = "hgafb",
-};
+static struct platform_device *hgafb_device;
static int __init hgafb_init(void)
{
if (fb_get_options("hgafb", NULL))
return -ENODEV;
- ret = driver_register(&hgafb_driver);
+ ret = platform_driver_register(&hgafb_driver);
if (!ret) {
- ret = platform_device_register(&hgafb_device);
- if (ret)
- driver_unregister(&hgafb_driver);
+ hgafb_device = platform_device_register_simple("hgafb", 0, NULL, 0);
+
+ if (IS_ERR(hgafb_device)) {
+ platform_driver_unregister(&hgafb_driver);
+ ret = PTR_ERR(hgafb_device);
+ }
}
return ret;
static void __exit hgafb_exit(void)
{
- platform_device_unregister(&hgafb_device);
- driver_unregister(&hgafb_driver);
+ platform_device_unregister(hgafb_device);
+ platform_driver_unregister(&hgafb_driver);
}
/* -------------------------------------------------------------------------
#include <linux/string.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
+#include <linux/mm.h>
#include <linux/fb.h>
#include <linux/delay.h>
#include <linux/init.h>
*
* Determine the closest clock frequency to the one requested.
*/
-#define REF_FREQ 0xe517 /* 14.31818 in 20.12 fixed point */
#define MAX_N 127
#define MAX_D 31
#define MAX_F 1
{
int n, d, f;
int n_best = 0, d_best = 0, f_best = 0;
- long f_best_diff = (0x7ffff << 12); /* 20.12 */
- long f_target = (freq << 12) / 1000; /* 20.12 */
+ long f_best_diff = 0x7ffff;
for (f = 0; f <= MAX_F; f++)
- for (n = 0; n <= MAX_N; n++)
- for (d = 0; d <= MAX_D; d++) {
- long f_out; /* 20.12 */
- long f_diff; /* 20.12 */
-
- f_out =
- ((((n + 1) << 12) / ((d +
- 1) *
- (1 << f))) >> 12)
- * REF_FREQ;
- f_diff = abs(f_out - f_target);
- if (f_diff < f_best_diff) {
+ for (d = 0; d <= MAX_D; d++)
+ for (n = 0; n <= MAX_N; n++) {
+ long f_out;
+ long f_diff;
+
+ f_out = ((14318 * (n + 1)) / (d + 1)) >> f;
+ f_diff = abs(f_out - freq);
+ if (f_diff <= f_best_diff) {
f_best_diff = f_diff;
n_best = n;
d_best = d;
f_best = f;
}
+ if (f_out > freq)
+ break;
}
if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2200 ||
par->VCLK3Denominator = d_best;
#ifdef NEOFB_DEBUG
- printk("neoVCLK: f:%d NumLow=%d NumHi=%d Den=%d Df=%d\n",
- f_target >> 12,
+ printk(KERN_DEBUG "neoVCLK: f:%ld NumLow=%d NumHi=%d Den=%d Df=%ld\n",
+ freq,
par->VCLK3NumeratorLow,
par->VCLK3NumeratorHigh,
- par->VCLK3Denominator, f_best_diff >> 12);
+ par->VCLK3Denominator, f_best_diff);
#endif
}
*/
static int vgaHWInit(const struct fb_var_screeninfo *var,
- const struct fb_info *info,
- struct neofb_par *par, struct xtimings *timings)
+ struct neofb_par *par)
{
+ int hsync_end = var->xres + var->right_margin + var->hsync_len;
+ int htotal = (hsync_end + var->left_margin) >> 3;
+ int vsync_start = var->yres + var->lower_margin;
+ int vsync_end = vsync_start + var->vsync_len;
+ int vtotal = vsync_end + var->upper_margin;
+
par->MiscOutReg = 0x23;
- if (!(timings->sync & FB_SYNC_HOR_HIGH_ACT))
+ if (!(var->sync & FB_SYNC_HOR_HIGH_ACT))
par->MiscOutReg |= 0x40;
- if (!(timings->sync & FB_SYNC_VERT_HIGH_ACT))
+ if (!(var->sync & FB_SYNC_VERT_HIGH_ACT))
par->MiscOutReg |= 0x80;
/*
/*
* CRTC Controller
*/
- par->CRTC[0] = (timings->HTotal >> 3) - 5;
- par->CRTC[1] = (timings->HDisplay >> 3) - 1;
- par->CRTC[2] = (timings->HDisplay >> 3) - 1;
- par->CRTC[3] = (((timings->HTotal >> 3) - 1) & 0x1F) | 0x80;
- par->CRTC[4] = (timings->HSyncStart >> 3);
- par->CRTC[5] = ((((timings->HTotal >> 3) - 1) & 0x20) << 2)
- | (((timings->HSyncEnd >> 3)) & 0x1F);
- par->CRTC[6] = (timings->VTotal - 2) & 0xFF;
- par->CRTC[7] = (((timings->VTotal - 2) & 0x100) >> 8)
- | (((timings->VDisplay - 1) & 0x100) >> 7)
- | ((timings->VSyncStart & 0x100) >> 6)
- | (((timings->VDisplay - 1) & 0x100) >> 5)
- | 0x10 | (((timings->VTotal - 2) & 0x200) >> 4)
- | (((timings->VDisplay - 1) & 0x200) >> 3)
- | ((timings->VSyncStart & 0x200) >> 2);
+ par->CRTC[0] = htotal - 5;
+ par->CRTC[1] = (var->xres >> 3) - 1;
+ par->CRTC[2] = (var->xres >> 3) - 1;
+ par->CRTC[3] = ((htotal - 1) & 0x1F) | 0x80;
+ par->CRTC[4] = ((var->xres + var->right_margin) >> 3);
+ par->CRTC[5] = (((htotal - 1) & 0x20) << 2)
+ | (((hsync_end >> 3)) & 0x1F);
+ par->CRTC[6] = (vtotal - 2) & 0xFF;
+ par->CRTC[7] = (((vtotal - 2) & 0x100) >> 8)
+ | (((var->yres - 1) & 0x100) >> 7)
+ | ((vsync_start & 0x100) >> 6)
+ | (((var->yres - 1) & 0x100) >> 5)
+ | 0x10 | (((vtotal - 2) & 0x200) >> 4)
+ | (((var->yres - 1) & 0x200) >> 3)
+ | ((vsync_start & 0x200) >> 2);
par->CRTC[8] = 0x00;
- par->CRTC[9] = (((timings->VDisplay - 1) & 0x200) >> 4) | 0x40;
+ par->CRTC[9] = (((var->yres - 1) & 0x200) >> 4) | 0x40;
- if (timings->dblscan)
+ if (var->vmode & FB_VMODE_DOUBLE)
par->CRTC[9] |= 0x80;
par->CRTC[10] = 0x00;
par->CRTC[13] = 0x00;
par->CRTC[14] = 0x00;
par->CRTC[15] = 0x00;
- par->CRTC[16] = timings->VSyncStart & 0xFF;
- par->CRTC[17] = (timings->VSyncEnd & 0x0F) | 0x20;
- par->CRTC[18] = (timings->VDisplay - 1) & 0xFF;
+ par->CRTC[16] = vsync_start & 0xFF;
+ par->CRTC[17] = (vsync_end & 0x0F) | 0x20;
+ par->CRTC[18] = (var->yres - 1) & 0xFF;
par->CRTC[19] = var->xres_virtual >> 4;
par->CRTC[20] = 0x00;
- par->CRTC[21] = (timings->VDisplay - 1) & 0xFF;
- par->CRTC[22] = (timings->VTotal - 1) & 0xFF;
+ par->CRTC[21] = (var->yres - 1) & 0xFF;
+ par->CRTC[22] = (vtotal - 1) & 0xFF;
par->CRTC[23] = 0xC3;
par->CRTC[24] = 0xFF;
{
struct neofb_par *par = info->par;
- while (readl(&par->neo2200->bltStat) & 1);
+ while (readl(&par->neo2200->bltStat) & 1)
+ cpu_relax();
return 0;
}
neofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
struct neofb_par *par = info->par;
- unsigned int pixclock = var->pixclock;
- struct xtimings timings;
int memlen, vramlen;
int mode_ok = 0;
DBG("neofb_check_var");
- if (!pixclock)
- pixclock = 10000; /* 10ns = 100MHz */
- timings.pixclock = 1000000000 / pixclock;
- if (timings.pixclock < 1)
- timings.pixclock = 1;
-
- if (timings.pixclock > par->maxClock)
+ if (PICOS2KHZ(var->pixclock) > par->maxClock)
return -EINVAL;
- timings.dblscan = var->vmode & FB_VMODE_DOUBLE;
- timings.interlaced = var->vmode & FB_VMODE_INTERLACED;
- timings.HDisplay = var->xres;
- timings.HSyncStart = timings.HDisplay + var->right_margin;
- timings.HSyncEnd = timings.HSyncStart + var->hsync_len;
- timings.HTotal = timings.HSyncEnd + var->left_margin;
- timings.VDisplay = var->yres;
- timings.VSyncStart = timings.VDisplay + var->lower_margin;
- timings.VSyncEnd = timings.VSyncStart + var->vsync_len;
- timings.VTotal = timings.VSyncEnd + var->upper_margin;
- timings.sync = var->sync;
-
/* Is the mode larger than the LCD panel? */
if (par->internal_display &&
((var->xres > par->NeoPanelWidth) ||
static int neofb_set_par(struct fb_info *info)
{
struct neofb_par *par = info->par;
- struct xtimings timings;
unsigned char temp;
int i, clock_hi = 0;
int lcd_stretch;
int hoffset, voffset;
+ int vsync_start, vtotal;
DBG("neofb_set_par");
vgaHWProtect(1); /* Blank the screen */
- timings.dblscan = info->var.vmode & FB_VMODE_DOUBLE;
- timings.interlaced = info->var.vmode & FB_VMODE_INTERLACED;
- timings.HDisplay = info->var.xres;
- timings.HSyncStart = timings.HDisplay + info->var.right_margin;
- timings.HSyncEnd = timings.HSyncStart + info->var.hsync_len;
- timings.HTotal = timings.HSyncEnd + info->var.left_margin;
- timings.VDisplay = info->var.yres;
- timings.VSyncStart = timings.VDisplay + info->var.lower_margin;
- timings.VSyncEnd = timings.VSyncStart + info->var.vsync_len;
- timings.VTotal = timings.VSyncEnd + info->var.upper_margin;
- timings.sync = info->var.sync;
- timings.pixclock = PICOS2KHZ(info->var.pixclock);
-
- if (timings.pixclock < 1)
- timings.pixclock = 1;
+ vsync_start = info->var.yres + info->var.lower_margin;
+ vtotal = vsync_start + info->var.vsync_len + info->var.upper_margin;
/*
* This will allocate the datastructure and initialize all of the
* generic VGA registers.
*/
- if (vgaHWInit(&info->var, info, par, &timings))
+ if (vgaHWInit(&info->var, par))
return -EINVAL;
/*
par->ExtCRTDispAddr = 0x10;
/* Vertical Extension */
- par->VerticalExt = (((timings.VTotal - 2) & 0x400) >> 10)
- | (((timings.VDisplay - 1) & 0x400) >> 9)
- | (((timings.VSyncStart) & 0x400) >> 8)
- | (((timings.VSyncStart) & 0x400) >> 7);
+ par->VerticalExt = (((vtotal - 2) & 0x400) >> 10)
+ | (((info->var.yres - 1) & 0x400) >> 9)
+ | (((vsync_start) & 0x400) >> 8)
+ | (((vsync_start) & 0x400) >> 7);
/* Fast write bursts on unless disabled. */
if (par->pci_burst)
* Calculate the VCLK that most closely matches the requested dot
* clock.
*/
- neoCalcVCLK(info, par, timings.pixclock);
+ neoCalcVCLK(info, par, PICOS2KHZ(info->var.pixclock));
/* Since we program the clocks ourselves, always use VCLK3. */
par->MiscOutReg |= 0x0C;
int maxClock = 65000;
int CursorMem = 1024;
int CursorOff = 0x100;
- int linearSize = 1024;
- int maxWidth = 1024;
- int maxHeight = 1024;
DBG("neo_init_hw");
case FB_ACCEL_NEOMAGIC_NM2070:
videoRam = 896;
maxClock = 65000;
- CursorMem = 2048;
- CursorOff = 0x100;
- linearSize = 1024;
- maxWidth = 1024;
- maxHeight = 1024;
break;
case FB_ACCEL_NEOMAGIC_NM2090:
case FB_ACCEL_NEOMAGIC_NM2093:
- videoRam = 1152;
- maxClock = 80000;
- CursorMem = 2048;
- CursorOff = 0x100;
- linearSize = 2048;
- maxWidth = 1024;
- maxHeight = 1024;
- break;
case FB_ACCEL_NEOMAGIC_NM2097:
videoRam = 1152;
maxClock = 80000;
- CursorMem = 1024;
- CursorOff = 0x100;
- linearSize = 2048;
- maxWidth = 1024;
- maxHeight = 1024;
break;
case FB_ACCEL_NEOMAGIC_NM2160:
videoRam = 2048;
maxClock = 90000;
- CursorMem = 1024;
- CursorOff = 0x100;
- linearSize = 2048;
- maxWidth = 1024;
- maxHeight = 1024;
break;
case FB_ACCEL_NEOMAGIC_NM2200:
videoRam = 2560;
maxClock = 110000;
- CursorMem = 1024;
- CursorOff = 0x1000;
- linearSize = 4096;
- maxWidth = 1280;
- maxHeight = 1024; /* ???? */
-
- par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase;
break;
case FB_ACCEL_NEOMAGIC_NM2230:
videoRam = 3008;
maxClock = 110000;
- CursorMem = 1024;
- CursorOff = 0x1000;
- linearSize = 4096;
- maxWidth = 1280;
- maxHeight = 1024; /* ???? */
-
- par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase;
break;
case FB_ACCEL_NEOMAGIC_NM2360:
videoRam = 4096;
maxClock = 110000;
- CursorMem = 1024;
- CursorOff = 0x1000;
- linearSize = 4096;
- maxWidth = 1280;
- maxHeight = 1024; /* ???? */
-
- par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase;
break;
case FB_ACCEL_NEOMAGIC_NM2380:
videoRam = 6144;
maxClock = 110000;
+ break;
+ }
+ switch (info->fix.accel) {
+ case FB_ACCEL_NEOMAGIC_NM2070:
+ case FB_ACCEL_NEOMAGIC_NM2090:
+ case FB_ACCEL_NEOMAGIC_NM2093:
+ CursorMem = 2048;
+ CursorOff = 0x100;
+ break;
+ case FB_ACCEL_NEOMAGIC_NM2097:
+ case FB_ACCEL_NEOMAGIC_NM2160:
+ CursorMem = 1024;
+ CursorOff = 0x100;
+ break;
+ case FB_ACCEL_NEOMAGIC_NM2200:
+ case FB_ACCEL_NEOMAGIC_NM2230:
+ case FB_ACCEL_NEOMAGIC_NM2360:
+ case FB_ACCEL_NEOMAGIC_NM2380:
CursorMem = 1024;
CursorOff = 0x1000;
- linearSize = 8192;
- maxWidth = 1280;
- maxHeight = 1024; /* ???? */
par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase;
break;
*/
par->maxClock = maxClock;
par->cursorOff = CursorOff;
- return ((videoRam * 1024));
+ return videoRam * 1024;
}
*/
#include <linux/kernel.h>
#include <linux/dma-mapping.h>
+#include <linux/mm.h>
#include <linux/vmalloc.h>
#include <linux/clk.h>
#include <linux/io.h>
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <linux/platform_device.h>
+#include <linux/mm.h>
#include <linux/uaccess.h>
#include <asm/mach-types.h>
#include <linux/string.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
+#include <linux/mm.h>
#include <linux/fb.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/completion.h>
+#include <linux/mutex.h>
#include <linux/kthread.h>
#include <linux/freezer.h>
{
u_int old_state;
- down(&fbi->ctrlr_sem);
+ mutex_lock(&fbi->ctrlr_lock);
old_state = fbi->state;
}
break;
}
- up(&fbi->ctrlr_sem);
+ mutex_unlock(&fbi->ctrlr_lock);
}
/*
init_waitqueue_head(&fbi->ctrlr_wait);
INIT_WORK(&fbi->task, pxafb_task);
- init_MUTEX(&fbi->ctrlr_sem);
+ mutex_init(&fbi->ctrlr_lock);
init_completion(&fbi->disable_done);
#ifdef CONFIG_FB_PXA_SMARTPANEL
init_completion(&fbi->command_done);
volatile u_char state;
volatile u_char task_state;
- struct semaphore ctrlr_sem;
+ struct mutex ctrlr_lock;
wait_queue_head_t ctrlr_wait;
struct work_struct task;
#include <linux/string.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
+#include <linux/mm.h>
#include <linux/fb.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/cpufreq.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
+#include <linux/mutex.h>
#include <asm/hardware.h>
#include <asm/io.h>
{
u_int old_state;
- down(&fbi->ctrlr_sem);
+ mutex_lock(&fbi->ctrlr_lock);
old_state = fbi->state;
}
break;
}
- up(&fbi->ctrlr_sem);
+ mutex_unlock(&fbi->ctrlr_lock);
}
/*
init_waitqueue_head(&fbi->ctrlr_wait);
INIT_WORK(&fbi->task, sa1100fb_task);
- init_MUTEX(&fbi->ctrlr_sem);
+ mutex_init(&fbi->ctrlr_lock);
return fbi;
}
volatile u_char state;
volatile u_char task_state;
- struct semaphore ctrlr_sem;
+ struct mutex ctrlr_lock;
wait_queue_head_t ctrlr_wait;
struct work_struct task;
--- /dev/null
+/*
+ * SH7760/SH7763 LCDC Framebuffer driver.
+ *
+ * (c) 2006-2008 MSC Vertriebsges.m.b.H.,
+ * Manuel Lauss <mano@roarinelk.homelinux.net>
+ * (c) 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * PLEASE HAVE A LOOK AT Documentation/fb/sh7760fb.txt!
+ *
+ * Thanks to Siegfried Schaefer <s.schaefer at schaefer-edv.de>
+ * for his original source and testing!
+ */
+
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/fb.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/sh7760fb.h>
+
+struct sh7760fb_par {
+ void __iomem *base;
+ int irq;
+
+ struct sh7760fb_platdata *pd; /* display information */
+
+ dma_addr_t fbdma; /* physical address */
+
+ int rot; /* rotation enabled? */
+
+ u32 pseudo_palette[16];
+
+ struct platform_device *dev;
+ struct resource *ioarea;
+ struct completion vsync; /* vsync irq event */
+};
+
+static irqreturn_t sh7760fb_irq(int irq, void *data)
+{
+ struct completion *c = data;
+
+ complete(c);
+
+ return IRQ_HANDLED;
+}
+
+static void sh7760fb_wait_vsync(struct fb_info *info)
+{
+ struct sh7760fb_par *par = info->par;
+
+ if (par->pd->novsync)
+ return;
+
+ iowrite16(ioread16(par->base + LDINTR) & ~VINT_CHECK,
+ par->base + LDINTR);
+
+ if (par->irq < 0) {
+ /* poll for vert. retrace: status bit is sticky */
+ while (!(ioread16(par->base + LDINTR) & VINT_CHECK))
+ cpu_relax();
+ } else {
+ /* a "wait_for_irq_event(par->irq)" would be extremely nice */
+ init_completion(&par->vsync);
+ enable_irq(par->irq);
+ wait_for_completion(&par->vsync);
+ disable_irq_nosync(par->irq);
+ }
+}
+
+/* wait_for_lps - wait until power supply has reached a certain state. */
+static int wait_for_lps(struct sh7760fb_par *par, int val)
+{
+ int i = 100;
+ while (--i && ((ioread16(par->base + LDPMMR) & 3) != val))
+ msleep(1);
+
+ if (i <= 0)
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+/* en/disable the LCDC */
+static int sh7760fb_blank(int blank, struct fb_info *info)
+{
+ struct sh7760fb_par *par = info->par;
+ struct sh7760fb_platdata *pd = par->pd;
+ unsigned short cntr = ioread16(par->base + LDCNTR);
+ unsigned short intr = ioread16(par->base + LDINTR);
+ int lps;
+
+ if (blank == FB_BLANK_UNBLANK) {
+ intr |= VINT_START;
+ cntr = LDCNTR_DON2 | LDCNTR_DON;
+ lps = 3;
+ } else {
+ intr &= ~VINT_START;
+ cntr = LDCNTR_DON2;
+ lps = 0;
+ }
+
+ if (pd->blank)
+ pd->blank(blank);
+
+ iowrite16(intr, par->base + LDINTR);
+ iowrite16(cntr, par->base + LDCNTR);
+
+ return wait_for_lps(par, lps);
+}
+
+/* set color registers */
+static int sh7760fb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
+{
+ struct sh7760fb_par *par = info->par;
+ u32 s = cmap->start;
+ u32 l = cmap->len;
+ u16 *r = cmap->red;
+ u16 *g = cmap->green;
+ u16 *b = cmap->blue;
+ u32 col, tmo;
+ int ret;
+
+ ret = 0;
+
+ sh7760fb_wait_vsync(info);
+
+ /* request palette access */
+ iowrite16(LDPALCR_PALEN, par->base + LDPALCR);
+
+ /* poll for access grant */
+ tmo = 100;
+ while (!(ioread16(par->base + LDPALCR) & LDPALCR_PALS) && (--tmo))
+ cpu_relax();
+
+ if (!tmo) {
+ ret = 1;
+ dev_dbg(info->dev, "no palette access!\n");
+ goto out;
+ }
+
+ while (l && (s < 256)) {
+ col = ((*r) & 0xff) << 16;
+ col |= ((*g) & 0xff) << 8;
+ col |= ((*b) & 0xff);
+ col &= SH7760FB_PALETTE_MASK;
+
+ if (s < 16)
+ ((u32 *) (info->pseudo_palette))[s] = s;
+
+ s++;
+ l--;
+ r++;
+ g++;
+ b++;
+ }
+out:
+ iowrite16(0, par->base + LDPALCR);
+ return ret;
+}
+
+static void encode_fix(struct fb_fix_screeninfo *fix, struct fb_info *info,
+ unsigned long stride)
+{
+ memset(fix, 0, sizeof(struct fb_fix_screeninfo));
+ strcpy(fix->id, "sh7760-lcdc");
+
+ fix->smem_start = (unsigned long)info->screen_base;
+ fix->smem_len = info->screen_size;
+
+ fix->line_length = stride;
+}
+
+static int sh7760fb_get_color_info(struct device *dev,
+ u16 lddfr, int *bpp, int *gray)
+{
+ int lbpp, lgray;
+
+ lgray = lbpp = 0;
+
+ switch (lddfr & LDDFR_COLOR_MASK) {
+ case LDDFR_1BPP_MONO:
+ lgray = 1;
+ lbpp = 1;
+ break;
+ case LDDFR_2BPP_MONO:
+ lgray = 1;
+ lbpp = 2;
+ break;
+ case LDDFR_4BPP_MONO:
+ lgray = 1;
+ case LDDFR_4BPP:
+ lbpp = 4;
+ break;
+ case LDDFR_6BPP_MONO:
+ lgray = 1;
+ case LDDFR_8BPP:
+ lbpp = 8;
+ break;
+ case LDDFR_16BPP_RGB555:
+ case LDDFR_16BPP_RGB565:
+ lbpp = 16;
+ lgray = 0;
+ break;
+ default:
+ dev_dbg(dev, "unsupported LDDFR bit depth.\n");
+ return -EINVAL;
+ }
+
+ if (bpp)
+ *bpp = lbpp;
+ if (gray)
+ *gray = lgray;
+
+ return 0;
+}
+
+static int sh7760fb_check_var(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ struct fb_fix_screeninfo *fix = &info->fix;
+ struct sh7760fb_par *par = info->par;
+ int ret, bpp;
+
+ /* get color info from register value */
+ ret = sh7760fb_get_color_info(info->dev, par->pd->lddfr, &bpp, NULL);
+ if (ret)
+ return ret;
+
+ var->bits_per_pixel = bpp;
+
+ if ((var->grayscale) && (var->bits_per_pixel == 1))
+ fix->visual = FB_VISUAL_MONO10;
+ else if (var->bits_per_pixel >= 15)
+ fix->visual = FB_VISUAL_TRUECOLOR;
+ else
+ fix->visual = FB_VISUAL_PSEUDOCOLOR;
+
+ /* TODO: add some more validation here */
+ return 0;
+}
+
+/*
+ * sh7760fb_set_par - set videomode.
+ *
+ * NOTE: The rotation, grayscale and DSTN codepaths are
+ * totally untested!
+ */
+static int sh7760fb_set_par(struct fb_info *info)
+{
+ struct sh7760fb_par *par = info->par;
+ struct fb_videomode *vm = par->pd->def_mode;
+ unsigned long sbase, dstn_off, ldsarl, stride;
+ unsigned short hsynp, hsynw, htcn, hdcn;
+ unsigned short vsynp, vsynw, vtln, vdln;
+ unsigned short lddfr, ldmtr;
+ int ret, bpp, gray;
+
+ par->rot = par->pd->rotate;
+
+ /* rotate only works with xres <= 320 */
+ if (par->rot && (vm->xres > 320)) {
+ dev_dbg(info->dev, "rotation disabled due to display size\n");
+ par->rot = 0;
+ }
+
+ /* calculate LCDC reg vals from display parameters */
+ hsynp = vm->right_margin + vm->xres;
+ hsynw = vm->hsync_len;
+ htcn = vm->left_margin + hsynp + hsynw;
+ hdcn = vm->xres;
+ vsynp = vm->lower_margin + vm->yres;
+ vsynw = vm->vsync_len;
+ vtln = vm->upper_margin + vsynp + vsynw;
+ vdln = vm->yres;
+
+ /* get color info from register value */
+ ret = sh7760fb_get_color_info(info->dev, par->pd->lddfr, &bpp, &gray);
+ if (ret)
+ return ret;
+
+ dev_dbg(info->dev, "%dx%d %dbpp %s (orientation %s)\n", hdcn,
+ vdln, bpp, gray ? "grayscale" : "color",
+ par->rot ? "rotated" : "normal");
+
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+ lddfr = par->pd->lddfr | (1 << 8);
+#else
+ lddfr = par->pd->lddfr & ~(1 << 8);
+#endif
+
+ ldmtr = par->pd->ldmtr;
+
+ if (!(vm->sync & FB_SYNC_HOR_HIGH_ACT))
+ ldmtr |= LDMTR_CL1POL;
+ if (!(vm->sync & FB_SYNC_VERT_HIGH_ACT))
+ ldmtr |= LDMTR_FLMPOL;
+
+ /* shut down LCDC before changing display parameters */
+ sh7760fb_blank(FB_BLANK_POWERDOWN, info);
+
+ iowrite16(par->pd->ldickr, par->base + LDICKR); /* pixclock */
+ iowrite16(ldmtr, par->base + LDMTR); /* polarities */
+ iowrite16(lddfr, par->base + LDDFR); /* color/depth */
+ iowrite16((par->rot ? 1 << 13 : 0), par->base + LDSMR); /* rotate */
+ iowrite16(par->pd->ldpmmr, par->base + LDPMMR); /* Power Management */
+ iowrite16(par->pd->ldpspr, par->base + LDPSPR); /* Power Supply Ctrl */
+
+ /* display resolution */
+ iowrite16(((htcn >> 3) - 1) | (((hdcn >> 3) - 1) << 8),
+ par->base + LDHCNR);
+ iowrite16(vdln - 1, par->base + LDVDLNR);
+ iowrite16(vtln - 1, par->base + LDVTLNR);
+ /* h/v sync signals */
+ iowrite16((vsynp - 1) | ((vsynw - 1) << 12), par->base + LDVSYNR);
+ iowrite16(((hsynp >> 3) - 1) | (((hsynw >> 3) - 1) << 12),
+ par->base + LDHSYNR);
+ /* AC modulation sig */
+ iowrite16(par->pd->ldaclnr, par->base + LDACLNR);
+
+ stride = (par->rot) ? vtln : hdcn;
+ if (!gray)
+ stride *= (bpp + 7) >> 3;
+ else {
+ if (bpp == 1)
+ stride >>= 3;
+ else if (bpp == 2)
+ stride >>= 2;
+ else if (bpp == 4)
+ stride >>= 1;
+ /* 6 bpp == 8 bpp */
+ }
+
+ /* if rotated, stride must be power of 2 */
+ if (par->rot) {
+ unsigned long bit = 1 << 31;
+ while (bit) {
+ if (stride & bit)
+ break;
+ bit >>= 1;
+ }
+ if (stride & ~bit)
+ stride = bit << 1; /* not P-o-2, round up */
+ }
+ iowrite16(stride, par->base + LDLAOR);
+
+ /* set display mem start address */
+ sbase = (unsigned long)par->fbdma;
+ if (par->rot)
+ sbase += (hdcn - 1) * stride;
+
+ iowrite32(sbase, par->base + LDSARU);
+
+ /*
+ * for DSTN need to set address for lower half.
+ * I (mlau) don't know which address to set it to,
+ * so I guessed at (stride * yres/2).
+ */
+ if (((ldmtr & 0x003f) >= LDMTR_DSTN_MONO_8) &&
+ ((ldmtr & 0x003f) <= LDMTR_DSTN_COLOR_16)) {
+
+ dev_dbg(info->dev, " ***** DSTN untested! *****\n");
+
+ dstn_off = stride;
+ if (par->rot)
+ dstn_off *= hdcn >> 1;
+ else
+ dstn_off *= vdln >> 1;
+
+ ldsarl = sbase + dstn_off;
+ } else
+ ldsarl = 0;
+
+ iowrite32(ldsarl, par->base + LDSARL); /* mem for lower half of DSTN */
+
+ encode_fix(&info->fix, info, stride);
+ sh7760fb_check_var(&info->var, info);
+
+ sh7760fb_blank(FB_BLANK_UNBLANK, info); /* panel on! */
+
+ dev_dbg(info->dev, "hdcn : %6d htcn : %6d\n", hdcn, htcn);
+ dev_dbg(info->dev, "hsynw : %6d hsynp : %6d\n", hsynw, hsynp);
+ dev_dbg(info->dev, "vdln : %6d vtln : %6d\n", vdln, vtln);
+ dev_dbg(info->dev, "vsynw : %6d vsynp : %6d\n", vsynw, vsynp);
+ dev_dbg(info->dev, "clksrc: %6d clkdiv: %6d\n",
+ (par->pd->ldickr >> 12) & 3, par->pd->ldickr & 0x1f);
+ dev_dbg(info->dev, "ldpmmr: 0x%04x ldpspr: 0x%04x\n", par->pd->ldpmmr,
+ par->pd->ldpspr);
+ dev_dbg(info->dev, "ldmtr : 0x%04x lddfr : 0x%04x\n", ldmtr, lddfr);
+ dev_dbg(info->dev, "ldlaor: %ld\n", stride);
+ dev_dbg(info->dev, "ldsaru: 0x%08lx ldsarl: 0x%08lx\n", sbase, ldsarl);
+
+ return 0;
+}
+
+static struct fb_ops sh7760fb_ops = {
+ .owner = THIS_MODULE,
+ .fb_blank = sh7760fb_blank,
+ .fb_check_var = sh7760fb_check_var,
+ .fb_setcmap = sh7760fb_setcmap,
+ .fb_set_par = sh7760fb_set_par,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+};
+
+static void sh7760fb_free_mem(struct fb_info *info)
+{
+ struct sh7760fb_par *par = info->par;
+
+ if (!info->screen_base)
+ return;
+
+ dma_free_coherent(info->dev, info->screen_size,
+ info->screen_base, par->fbdma);
+
+ par->fbdma = 0;
+ info->screen_base = NULL;
+ info->screen_size = 0;
+}
+
+/* allocate the framebuffer memory. This memory must be in Area3,
+ * (dictated by the DMA engine) and contiguous, at a 512 byte boundary.
+ */
+static int sh7760fb_alloc_mem(struct fb_info *info)
+{
+ struct sh7760fb_par *par = info->par;
+ void *fbmem;
+ unsigned long vram;
+ int ret, bpp;
+
+ if (info->screen_base)
+ return 0;
+
+ /* get color info from register value */
+ ret = sh7760fb_get_color_info(info->dev, par->pd->lddfr, &bpp, NULL);
+ if (ret) {
+ printk(KERN_ERR "colinfo\n");
+ return ret;
+ }
+
+ /* min VRAM: xres_min = 16, yres_min = 1, bpp = 1: 2byte -> 1 page
+ max VRAM: xres_max = 1024, yres_max = 1024, bpp = 16: 2MB */
+
+ vram = info->var.xres * info->var.yres;
+ if (info->var.grayscale) {
+ if (bpp == 1)
+ vram >>= 3;
+ else if (bpp == 2)
+ vram >>= 2;
+ else if (bpp == 4)
+ vram >>= 1;
+ } else if (bpp > 8)
+ vram *= 2;
+ if ((vram < 1) || (vram > 1024 * 2048)) {
+ dev_dbg(info->dev, "too much VRAM required. Check settings\n");
+ return -ENODEV;
+ }
+
+ if (vram < PAGE_SIZE)
+ vram = PAGE_SIZE;
+
+ fbmem = dma_alloc_coherent(info->dev, vram, &par->fbdma, GFP_KERNEL);
+
+ if (!fbmem)
+ return -ENOMEM;
+
+ if ((par->fbdma & SH7760FB_DMA_MASK) != SH7760FB_DMA_MASK) {
+ sh7760fb_free_mem(info);
+ dev_err(info->dev, "kernel gave me memory at 0x%08lx, which is"
+ "unusable for the LCDC\n", (unsigned long)par->fbdma);
+ return -ENOMEM;
+ }
+
+ info->screen_base = fbmem;
+ info->screen_size = vram;
+
+ return 0;
+}
+
+static int __devinit sh7760fb_probe(struct platform_device *pdev)
+{
+ struct fb_info *info;
+ struct resource *res;
+ struct sh7760fb_par *par;
+ int ret;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (unlikely(res == NULL)) {
+ dev_err(&pdev->dev, "invalid resource\n");
+ return -EINVAL;
+ }
+
+ info = framebuffer_alloc(sizeof(struct sh7760fb_par), &pdev->dev);
+ if (!info)
+ return -ENOMEM;
+
+ par = info->par;
+ par->dev = pdev;
+
+ par->pd = pdev->dev.platform_data;
+ if (!par->pd) {
+ dev_dbg(info->dev, "no display setup data!\n");
+ ret = -ENODEV;
+ goto out_fb;
+ }
+
+ par->ioarea = request_mem_region(res->start,
+ (res->end - res->start), pdev->name);
+ if (!par->ioarea) {
+ dev_err(&pdev->dev, "mmio area busy\n");
+ ret = -EBUSY;
+ goto out_fb;
+ }
+
+ par->base = ioremap_nocache(res->start, res->end - res->start + 1);
+ if (!par->base) {
+ dev_err(&pdev->dev, "cannot remap\n");
+ ret = -ENODEV;
+ goto out_res;
+ }
+
+ iowrite16(0, par->base + LDINTR); /* disable vsync irq */
+ par->irq = platform_get_irq(pdev, 0);
+ if (par->irq >= 0) {
+ ret = request_irq(par->irq, sh7760fb_irq, 0,
+ "sh7760-lcdc", &par->vsync);
+ if (ret) {
+ dev_err(&pdev->dev, "cannot grab IRQ\n");
+ par->irq = -ENXIO;
+ } else
+ disable_irq_nosync(par->irq);
+ }
+
+ fb_videomode_to_var(&info->var, par->pd->def_mode);
+
+ ret = sh7760fb_alloc_mem(info);
+ if (ret) {
+ dev_dbg(info->dev, "framebuffer memory allocation failed!\n");
+ goto out_unmap;
+ }
+
+ info->pseudo_palette = par->pseudo_palette;
+
+ /* fixup color register bitpositions. These are fixed by hardware */
+ info->var.red.offset = 11;
+ info->var.red.length = 5;
+ info->var.red.msb_right = 0;
+
+ info->var.green.offset = 5;
+ info->var.green.length = 6;
+ info->var.green.msb_right = 0;
+
+ info->var.blue.offset = 0;
+ info->var.blue.length = 5;
+ info->var.blue.msb_right = 0;
+
+ info->var.transp.offset = 0;
+ info->var.transp.length = 0;
+ info->var.transp.msb_right = 0;
+
+ /* set the DON2 bit now, before cmap allocation, as it will randomize
+ * palette memory.
+ */
+ iowrite16(LDCNTR_DON2, par->base + LDCNTR);
+ info->fbops = &sh7760fb_ops;
+
+ ret = fb_alloc_cmap(&info->cmap, 256, 0);
+ if (ret) {
+ dev_dbg(info->dev, "Unable to allocate cmap memory\n");
+ goto out_mem;
+ }
+
+ ret = register_framebuffer(info);
+ if (ret < 0) {
+ dev_dbg(info->dev, "cannot register fb!\n");
+ goto out_cmap;
+ }
+ platform_set_drvdata(pdev, info);
+
+ printk(KERN_INFO "%s: memory at phys 0x%08lx-0x%08lx, size %ld KiB\n",
+ pdev->name,
+ (unsigned long)par->fbdma,
+ (unsigned long)(par->fbdma + info->screen_size - 1),
+ info->screen_size >> 10);
+
+ return 0;
+
+out_cmap:
+ sh7760fb_blank(FB_BLANK_POWERDOWN, info);
+ fb_dealloc_cmap(&info->cmap);
+out_mem:
+ sh7760fb_free_mem(info);
+out_unmap:
+ if (par->irq >= 0)
+ free_irq(par->irq, &par->vsync);
+ iounmap(par->base);
+out_res:
+ release_resource(par->ioarea);
+ kfree(par->ioarea);
+out_fb:
+ framebuffer_release(info);
+ return ret;
+}
+
+static int __devexit sh7760fb_remove(struct platform_device *dev)
+{
+ struct fb_info *info = platform_get_drvdata(dev);
+ struct sh7760fb_par *par = info->par;
+
+ sh7760fb_blank(FB_BLANK_POWERDOWN, info);
+ unregister_framebuffer(info);
+ fb_dealloc_cmap(&info->cmap);
+ sh7760fb_free_mem(info);
+ if (par->irq >= 0)
+ free_irq(par->irq, par);
+ iounmap(par->base);
+ release_resource(par->ioarea);
+ kfree(par->ioarea);
+ framebuffer_release(info);
+ platform_set_drvdata(dev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver sh7760_lcdc_driver = {
+ .driver = {
+ .name = "sh7760-lcdc",
+ .owner = THIS_MODULE,
+ },
+ .probe = sh7760fb_probe,
+ .remove = __devexit_p(sh7760fb_remove),
+};
+
+static int __init sh7760fb_init(void)
+{
+ return platform_driver_register(&sh7760_lcdc_driver);
+}
+
+static void __exit sh7760fb_exit(void)
+{
+ platform_driver_unregister(&sh7760_lcdc_driver);
+}
+
+module_init(sh7760fb_init);
+module_exit(sh7760fb_exit);
+
+MODULE_AUTHOR("Nobuhiro Iwamatsu, Manuel Lauss");
+MODULE_DESCRIPTION("FBdev for SH7760/63 integrated LCD Controller");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * SuperH Mobile LCDC Framebuffer
+ *
+ * Copyright (c) 2008 Magnus Damm
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/mm.h>
+#include <linux/fb.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <asm/sh_mobile_lcdc.h>
+
+#define PALETTE_NR 16
+
+struct sh_mobile_lcdc_priv;
+struct sh_mobile_lcdc_chan {
+ struct sh_mobile_lcdc_priv *lcdc;
+ unsigned long *reg_offs;
+ unsigned long ldmt1r_value;
+ unsigned long enabled; /* ME and SE in LDCNT2R */
+ struct sh_mobile_lcdc_chan_cfg cfg;
+ u32 pseudo_palette[PALETTE_NR];
+ struct fb_info info;
+ dma_addr_t dma_handle;
+};
+
+struct sh_mobile_lcdc_priv {
+ void __iomem *base;
+ struct clk *clk;
+ unsigned long lddckr;
+ struct sh_mobile_lcdc_chan ch[2];
+};
+
+/* shared registers */
+#define _LDDCKR 0x410
+#define _LDDCKSTPR 0x414
+#define _LDINTR 0x468
+#define _LDSR 0x46c
+#define _LDCNT1R 0x470
+#define _LDCNT2R 0x474
+#define _LDDDSR 0x47c
+#define _LDDWD0R 0x800
+#define _LDDRDR 0x840
+#define _LDDWAR 0x900
+#define _LDDRAR 0x904
+
+/* per-channel registers */
+enum { LDDCKPAT1R, LDDCKPAT2R, LDMT1R, LDMT2R, LDMT3R, LDDFR, LDSM1R,
+ LDSA1R, LDMLSR, LDHCNR, LDHSYNR, LDVLNR, LDVSYNR, LDPMR };
+
+static unsigned long lcdc_offs_mainlcd[] = {
+ [LDDCKPAT1R] = 0x400,
+ [LDDCKPAT2R] = 0x404,
+ [LDMT1R] = 0x418,
+ [LDMT2R] = 0x41c,
+ [LDMT3R] = 0x420,
+ [LDDFR] = 0x424,
+ [LDSM1R] = 0x428,
+ [LDSA1R] = 0x430,
+ [LDMLSR] = 0x438,
+ [LDHCNR] = 0x448,
+ [LDHSYNR] = 0x44c,
+ [LDVLNR] = 0x450,
+ [LDVSYNR] = 0x454,
+ [LDPMR] = 0x460,
+};
+
+static unsigned long lcdc_offs_sublcd[] = {
+ [LDDCKPAT1R] = 0x408,
+ [LDDCKPAT2R] = 0x40c,
+ [LDMT1R] = 0x600,
+ [LDMT2R] = 0x604,
+ [LDMT3R] = 0x608,
+ [LDDFR] = 0x60c,
+ [LDSM1R] = 0x610,
+ [LDSA1R] = 0x618,
+ [LDMLSR] = 0x620,
+ [LDHCNR] = 0x624,
+ [LDHSYNR] = 0x628,
+ [LDVLNR] = 0x62c,
+ [LDVSYNR] = 0x630,
+ [LDPMR] = 0x63c,
+};
+
+#define START_LCDC 0x00000001
+#define LCDC_RESET 0x00000100
+#define DISPLAY_BEU 0x00000008
+#define LCDC_ENABLE 0x00000001
+
+static void lcdc_write_chan(struct sh_mobile_lcdc_chan *chan,
+ int reg_nr, unsigned long data)
+{
+ iowrite32(data, chan->lcdc->base + chan->reg_offs[reg_nr]);
+}
+
+static unsigned long lcdc_read_chan(struct sh_mobile_lcdc_chan *chan,
+ int reg_nr)
+{
+ return ioread32(chan->lcdc->base + chan->reg_offs[reg_nr]);
+}
+
+static void lcdc_write(struct sh_mobile_lcdc_priv *priv,
+ unsigned long reg_offs, unsigned long data)
+{
+ iowrite32(data, priv->base + reg_offs);
+}
+
+static unsigned long lcdc_read(struct sh_mobile_lcdc_priv *priv,
+ unsigned long reg_offs)
+{
+ return ioread32(priv->base + reg_offs);
+}
+
+static void lcdc_wait_bit(struct sh_mobile_lcdc_priv *priv,
+ unsigned long reg_offs,
+ unsigned long mask, unsigned long until)
+{
+ while ((lcdc_read(priv, reg_offs) & mask) != until)
+ cpu_relax();
+}
+
+static int lcdc_chan_is_sublcd(struct sh_mobile_lcdc_chan *chan)
+{
+ return chan->cfg.chan == LCDC_CHAN_SUBLCD;
+}
+
+static void lcdc_sys_write_index(void *handle, unsigned long data)
+{
+ struct sh_mobile_lcdc_chan *ch = handle;
+
+ lcdc_write(ch->lcdc, _LDDWD0R, data | 0x10000000);
+ lcdc_wait_bit(ch->lcdc, _LDSR, 2, 0);
+ lcdc_write(ch->lcdc, _LDDWAR, 1 | (lcdc_chan_is_sublcd(ch) ? 2 : 0));
+}
+
+static void lcdc_sys_write_data(void *handle, unsigned long data)
+{
+ struct sh_mobile_lcdc_chan *ch = handle;
+
+ lcdc_write(ch->lcdc, _LDDWD0R, data | 0x11000000);
+ lcdc_wait_bit(ch->lcdc, _LDSR, 2, 0);
+ lcdc_write(ch->lcdc, _LDDWAR, 1 | (lcdc_chan_is_sublcd(ch) ? 2 : 0));
+}
+
+static unsigned long lcdc_sys_read_data(void *handle)
+{
+ struct sh_mobile_lcdc_chan *ch = handle;
+
+ lcdc_write(ch->lcdc, _LDDRDR, 0x01000000);
+ lcdc_wait_bit(ch->lcdc, _LDSR, 2, 0);
+ lcdc_write(ch->lcdc, _LDDRAR, 1 | (lcdc_chan_is_sublcd(ch) ? 2 : 0));
+ udelay(1);
+
+ return lcdc_read(ch->lcdc, _LDDRDR) & 0xffff;
+}
+
+struct sh_mobile_lcdc_sys_bus_ops sh_mobile_lcdc_sys_bus_ops = {
+ lcdc_sys_write_index,
+ lcdc_sys_write_data,
+ lcdc_sys_read_data,
+};
+
+static void sh_mobile_lcdc_start_stop(struct sh_mobile_lcdc_priv *priv,
+ int start)
+{
+ unsigned long tmp = lcdc_read(priv, _LDCNT2R);
+ int k;
+
+ /* start or stop the lcdc */
+ if (start)
+ lcdc_write(priv, _LDCNT2R, tmp | START_LCDC);
+ else
+ lcdc_write(priv, _LDCNT2R, tmp & ~START_LCDC);
+
+ /* wait until power is applied/stopped on all channels */
+ for (k = 0; k < ARRAY_SIZE(priv->ch); k++)
+ if (lcdc_read(priv, _LDCNT2R) & priv->ch[k].enabled)
+ while (1) {
+ tmp = lcdc_read_chan(&priv->ch[k], LDPMR) & 3;
+ if (start && tmp == 3)
+ break;
+ if (!start && tmp == 0)
+ break;
+ cpu_relax();
+ }
+
+ if (!start)
+ lcdc_write(priv, _LDDCKSTPR, 1); /* stop dotclock */
+}
+
+static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv)
+{
+ struct sh_mobile_lcdc_chan *ch;
+ struct fb_videomode *lcd_cfg;
+ struct sh_mobile_lcdc_board_cfg *board_cfg;
+ unsigned long tmp;
+ int k, m;
+ int ret = 0;
+
+ /* reset */
+ lcdc_write(priv, _LDCNT2R, lcdc_read(priv, _LDCNT2R) | LCDC_RESET);
+ lcdc_wait_bit(priv, _LDCNT2R, LCDC_RESET, 0);
+
+ /* enable LCDC channels */
+ tmp = lcdc_read(priv, _LDCNT2R);
+ tmp |= priv->ch[0].enabled;
+ tmp |= priv->ch[1].enabled;
+ lcdc_write(priv, _LDCNT2R, tmp);
+
+ /* read data from external memory, avoid using the BEU for now */
+ lcdc_write(priv, _LDCNT2R, lcdc_read(priv, _LDCNT2R) & ~DISPLAY_BEU);
+
+ /* stop the lcdc first */
+ sh_mobile_lcdc_start_stop(priv, 0);
+
+ /* configure clocks */
+ tmp = priv->lddckr;
+ for (k = 0; k < ARRAY_SIZE(priv->ch); k++) {
+ ch = &priv->ch[k];
+
+ if (!priv->ch[k].enabled)
+ continue;
+
+ m = ch->cfg.clock_divider;
+ if (!m)
+ continue;
+
+ if (m == 1)
+ m = 1 << 6;
+ tmp |= m << (lcdc_chan_is_sublcd(ch) ? 8 : 0);
+
+ lcdc_write_chan(ch, LDDCKPAT1R, 0x00000000);
+ lcdc_write_chan(ch, LDDCKPAT2R, (1 << (m/2)) - 1);
+ }
+
+ lcdc_write(priv, _LDDCKR, tmp);
+
+ /* start dotclock again */
+ lcdc_write(priv, _LDDCKSTPR, 0);
+ lcdc_wait_bit(priv, _LDDCKSTPR, ~0, 0);
+
+ /* interrupts are disabled */
+ lcdc_write(priv, _LDINTR, 0);
+
+ for (k = 0; k < ARRAY_SIZE(priv->ch); k++) {
+ ch = &priv->ch[k];
+ lcd_cfg = &ch->cfg.lcd_cfg;
+
+ if (!ch->enabled)
+ continue;
+
+ tmp = ch->ldmt1r_value;
+ tmp |= (lcd_cfg->sync & FB_SYNC_VERT_HIGH_ACT) ? 0 : 1 << 28;
+ tmp |= (lcd_cfg->sync & FB_SYNC_HOR_HIGH_ACT) ? 0 : 1 << 27;
+ lcdc_write_chan(ch, LDMT1R, tmp);
+
+ /* setup SYS bus */
+ lcdc_write_chan(ch, LDMT2R, ch->cfg.sys_bus_cfg.ldmt2r);
+ lcdc_write_chan(ch, LDMT3R, ch->cfg.sys_bus_cfg.ldmt3r);
+
+ /* horizontal configuration */
+ tmp = lcd_cfg->xres + lcd_cfg->hsync_len;
+ tmp += lcd_cfg->left_margin;
+ tmp += lcd_cfg->right_margin;
+ tmp /= 8; /* HTCN */
+ tmp |= (lcd_cfg->xres / 8) << 16; /* HDCN */
+ lcdc_write_chan(ch, LDHCNR, tmp);
+
+ tmp = lcd_cfg->xres;
+ tmp += lcd_cfg->right_margin;
+ tmp /= 8; /* HSYNP */
+ tmp |= (lcd_cfg->hsync_len / 8) << 16; /* HSYNW */
+ lcdc_write_chan(ch, LDHSYNR, tmp);
+
+ /* power supply */
+ lcdc_write_chan(ch, LDPMR, 0);
+
+ /* vertical configuration */
+ tmp = lcd_cfg->yres + lcd_cfg->vsync_len;
+ tmp += lcd_cfg->upper_margin;
+ tmp += lcd_cfg->lower_margin; /* VTLN */
+ tmp |= lcd_cfg->yres << 16; /* VDLN */
+ lcdc_write_chan(ch, LDVLNR, tmp);
+
+ tmp = lcd_cfg->yres;
+ tmp += lcd_cfg->lower_margin; /* VSYNP */
+ tmp |= lcd_cfg->vsync_len << 16; /* VSYNW */
+ lcdc_write_chan(ch, LDVSYNR, tmp);
+
+ board_cfg = &ch->cfg.board_cfg;
+ if (board_cfg->setup_sys)
+ ret = board_cfg->setup_sys(board_cfg->board_data, ch,
+ &sh_mobile_lcdc_sys_bus_ops);
+ if (ret)
+ return ret;
+ }
+
+ /* --- display_lcdc_data() --- */
+ lcdc_write(priv, _LDINTR, 0x00000f00);
+
+ /* word and long word swap */
+ lcdc_write(priv, _LDDDSR, lcdc_read(priv, _LDDDSR) | 6);
+
+ for (k = 0; k < ARRAY_SIZE(priv->ch); k++) {
+ ch = &priv->ch[k];
+
+ if (!priv->ch[k].enabled)
+ continue;
+
+ /* set bpp format in PKF[4:0] */
+ tmp = lcdc_read_chan(ch, LDDFR);
+ tmp &= ~(0x0001001f);
+ tmp |= (priv->ch[k].info.var.bits_per_pixel == 16) ? 3 : 0;
+ lcdc_write_chan(ch, LDDFR, tmp);
+
+ /* point out our frame buffer */
+ lcdc_write_chan(ch, LDSA1R, ch->info.fix.smem_start);
+
+ /* set line size */
+ lcdc_write_chan(ch, LDMLSR, ch->info.fix.line_length);
+
+ /* continuous read mode */
+ lcdc_write_chan(ch, LDSM1R, 0);
+ }
+
+ /* display output */
+ lcdc_write(priv, _LDCNT1R, LCDC_ENABLE);
+
+ /* start the lcdc */
+ sh_mobile_lcdc_start_stop(priv, 1);
+
+ /* tell the board code to enable the panel */
+ for (k = 0; k < ARRAY_SIZE(priv->ch); k++) {
+ ch = &priv->ch[k];
+ board_cfg = &ch->cfg.board_cfg;
+ if (board_cfg->display_on)
+ board_cfg->display_on(board_cfg->board_data);
+ }
+
+ return 0;
+}
+
+static void sh_mobile_lcdc_stop(struct sh_mobile_lcdc_priv *priv)
+{
+ struct sh_mobile_lcdc_chan *ch;
+ struct sh_mobile_lcdc_board_cfg *board_cfg;
+ int k;
+
+ /* tell the board code to disable the panel */
+ for (k = 0; k < ARRAY_SIZE(priv->ch); k++) {
+ ch = &priv->ch[k];
+ board_cfg = &ch->cfg.board_cfg;
+ if (board_cfg->display_off)
+ board_cfg->display_off(board_cfg->board_data);
+ }
+
+ /* stop the lcdc */
+ sh_mobile_lcdc_start_stop(priv, 0);
+}
+
+static int sh_mobile_lcdc_check_interface(struct sh_mobile_lcdc_chan *ch)
+{
+ int ifm, miftyp;
+
+ switch (ch->cfg.interface_type) {
+ case RGB8: ifm = 0; miftyp = 0; break;
+ case RGB9: ifm = 0; miftyp = 4; break;
+ case RGB12A: ifm = 0; miftyp = 5; break;
+ case RGB12B: ifm = 0; miftyp = 6; break;
+ case RGB16: ifm = 0; miftyp = 7; break;
+ case RGB18: ifm = 0; miftyp = 10; break;
+ case RGB24: ifm = 0; miftyp = 11; break;
+ case SYS8A: ifm = 1; miftyp = 0; break;
+ case SYS8B: ifm = 1; miftyp = 1; break;
+ case SYS8C: ifm = 1; miftyp = 2; break;
+ case SYS8D: ifm = 1; miftyp = 3; break;
+ case SYS9: ifm = 1; miftyp = 4; break;
+ case SYS12: ifm = 1; miftyp = 5; break;
+ case SYS16A: ifm = 1; miftyp = 7; break;
+ case SYS16B: ifm = 1; miftyp = 8; break;
+ case SYS16C: ifm = 1; miftyp = 9; break;
+ case SYS18: ifm = 1; miftyp = 10; break;
+ case SYS24: ifm = 1; miftyp = 11; break;
+ default: goto bad;
+ }
+
+ /* SUBLCD only supports SYS interface */
+ if (lcdc_chan_is_sublcd(ch)) {
+ if (ifm == 0)
+ goto bad;
+ else
+ ifm = 0;
+ }
+
+ ch->ldmt1r_value = (ifm << 12) | miftyp;
+ return 0;
+ bad:
+ return -EINVAL;
+}
+
+static int sh_mobile_lcdc_setup_clocks(struct device *dev, int clock_source,
+ struct sh_mobile_lcdc_priv *priv)
+{
+ char *str;
+ int icksel;
+
+ switch (clock_source) {
+ case LCDC_CLK_BUS: str = "bus_clk"; icksel = 0; break;
+ case LCDC_CLK_PERIPHERAL: str = "peripheral_clk"; icksel = 1; break;
+ case LCDC_CLK_EXTERNAL: str = NULL; icksel = 2; break;
+ default:
+ return -EINVAL;
+ }
+
+ priv->lddckr = icksel << 16;
+
+ if (str) {
+ priv->clk = clk_get(dev, str);
+ if (IS_ERR(priv->clk)) {
+ dev_err(dev, "cannot get clock %s\n", str);
+ return PTR_ERR(priv->clk);
+ }
+
+ clk_enable(priv->clk);
+ }
+
+ return 0;
+}
+
+static int sh_mobile_lcdc_setcolreg(u_int regno,
+ u_int red, u_int green, u_int blue,
+ u_int transp, struct fb_info *info)
+{
+ u32 *palette = info->pseudo_palette;
+
+ if (regno >= PALETTE_NR)
+ return -EINVAL;
+
+ /* only FB_VISUAL_TRUECOLOR supported */
+
+ red >>= 16 - info->var.red.length;
+ green >>= 16 - info->var.green.length;
+ blue >>= 16 - info->var.blue.length;
+ transp >>= 16 - info->var.transp.length;
+
+ palette[regno] = (red << info->var.red.offset) |
+ (green << info->var.green.offset) |
+ (blue << info->var.blue.offset) |
+ (transp << info->var.transp.offset);
+
+ return 0;
+}
+
+static struct fb_fix_screeninfo sh_mobile_lcdc_fix = {
+ .id = "SH Mobile LCDC",
+ .type = FB_TYPE_PACKED_PIXELS,
+ .visual = FB_VISUAL_TRUECOLOR,
+ .accel = FB_ACCEL_NONE,
+};
+
+static struct fb_ops sh_mobile_lcdc_ops = {
+ .fb_setcolreg = sh_mobile_lcdc_setcolreg,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+};
+
+static int sh_mobile_lcdc_set_bpp(struct fb_var_screeninfo *var, int bpp)
+{
+ switch (bpp) {
+ case 16: /* PKF[4:0] = 00011 - RGB 565 */
+ var->red.offset = 11;
+ var->red.length = 5;
+ var->green.offset = 5;
+ var->green.length = 6;
+ var->blue.offset = 0;
+ var->blue.length = 5;
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ break;
+
+ case 32: /* PKF[4:0] = 00000 - RGB 888
+ * sh7722 pdf says 00RRGGBB but reality is GGBB00RR
+ * this may be because LDDDSR has word swap enabled..
+ */
+ var->red.offset = 0;
+ var->red.length = 8;
+ var->green.offset = 24;
+ var->green.length = 8;
+ var->blue.offset = 16;
+ var->blue.length = 8;
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ break;
+ default:
+ return -EINVAL;
+ }
+ var->bits_per_pixel = bpp;
+ var->red.msb_right = 0;
+ var->green.msb_right = 0;
+ var->blue.msb_right = 0;
+ var->transp.msb_right = 0;
+ return 0;
+}
+
+static int sh_mobile_lcdc_remove(struct platform_device *pdev);
+
+static int __init sh_mobile_lcdc_probe(struct platform_device *pdev)
+{
+ struct fb_info *info;
+ struct sh_mobile_lcdc_priv *priv;
+ struct sh_mobile_lcdc_info *pdata;
+ struct sh_mobile_lcdc_chan_cfg *cfg;
+ struct resource *res;
+ int error;
+ void *buf;
+ int i, j;
+
+ if (!pdev->dev.platform_data) {
+ dev_err(&pdev->dev, "no platform data defined\n");
+ error = -EINVAL;
+ goto err0;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "cannot find IO resource\n");
+ error = -ENOENT;
+ goto err0;
+ }
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv) {
+ dev_err(&pdev->dev, "cannot allocate device data\n");
+ error = -ENOMEM;
+ goto err0;
+ }
+
+ platform_set_drvdata(pdev, priv);
+ pdata = pdev->dev.platform_data;
+
+ j = 0;
+ for (i = 0; i < ARRAY_SIZE(pdata->ch); i++) {
+ priv->ch[j].lcdc = priv;
+ memcpy(&priv->ch[j].cfg, &pdata->ch[i], sizeof(pdata->ch[i]));
+
+ error = sh_mobile_lcdc_check_interface(&priv->ch[i]);
+ if (error) {
+ dev_err(&pdev->dev, "unsupported interface type\n");
+ goto err1;
+ }
+
+ switch (pdata->ch[i].chan) {
+ case LCDC_CHAN_MAINLCD:
+ priv->ch[j].enabled = 1 << 1;
+ priv->ch[j].reg_offs = lcdc_offs_mainlcd;
+ j++;
+ break;
+ case LCDC_CHAN_SUBLCD:
+ priv->ch[j].enabled = 1 << 2;
+ priv->ch[j].reg_offs = lcdc_offs_sublcd;
+ j++;
+ break;
+ }
+ }
+
+ if (!j) {
+ dev_err(&pdev->dev, "no channels defined\n");
+ error = -EINVAL;
+ goto err1;
+ }
+
+ error = sh_mobile_lcdc_setup_clocks(&pdev->dev,
+ pdata->clock_source, priv);
+ if (error) {
+ dev_err(&pdev->dev, "unable to setup clocks\n");
+ goto err1;
+ }
+
+ priv->lddckr = pdata->lddckr;
+ priv->base = ioremap_nocache(res->start, (res->end - res->start) + 1);
+
+ for (i = 0; i < j; i++) {
+ info = &priv->ch[i].info;
+ cfg = &priv->ch[i].cfg;
+
+ info->fbops = &sh_mobile_lcdc_ops;
+ info->var.xres = info->var.xres_virtual = cfg->lcd_cfg.xres;
+ info->var.yres = info->var.yres_virtual = cfg->lcd_cfg.yres;
+ info->var.activate = FB_ACTIVATE_NOW;
+ error = sh_mobile_lcdc_set_bpp(&info->var, cfg->bpp);
+ if (error)
+ break;
+
+ info->fix = sh_mobile_lcdc_fix;
+ info->fix.line_length = cfg->lcd_cfg.xres * (cfg->bpp / 8);
+ info->fix.smem_len = info->fix.line_length * cfg->lcd_cfg.yres;
+
+ buf = dma_alloc_coherent(&pdev->dev, info->fix.smem_len,
+ &priv->ch[i].dma_handle, GFP_KERNEL);
+ if (!buf) {
+ dev_err(&pdev->dev, "unable to allocate buffer\n");
+ error = -ENOMEM;
+ break;
+ }
+
+ info->pseudo_palette = &priv->ch[i].pseudo_palette;
+ info->flags = FBINFO_FLAG_DEFAULT;
+
+ error = fb_alloc_cmap(&info->cmap, PALETTE_NR, 0);
+ if (error < 0) {
+ dev_err(&pdev->dev, "unable to allocate cmap\n");
+ dma_free_coherent(&pdev->dev, info->fix.smem_len,
+ buf, priv->ch[i].dma_handle);
+ break;
+ }
+
+ memset(buf, 0, info->fix.smem_len);
+ info->fix.smem_start = priv->ch[i].dma_handle;
+ info->screen_base = buf;
+ info->device = &pdev->dev;
+ }
+
+ if (error)
+ goto err1;
+
+ error = sh_mobile_lcdc_start(priv);
+ if (error) {
+ dev_err(&pdev->dev, "unable to start hardware\n");
+ goto err1;
+ }
+
+ for (i = 0; i < j; i++) {
+ error = register_framebuffer(&priv->ch[i].info);
+ if (error < 0)
+ goto err1;
+ }
+
+ for (i = 0; i < j; i++) {
+ info = &priv->ch[i].info;
+ dev_info(info->dev,
+ "registered %s/%s as %dx%d %dbpp.\n",
+ pdev->name,
+ (priv->ch[i].cfg.chan == LCDC_CHAN_MAINLCD) ?
+ "mainlcd" : "sublcd",
+ (int) priv->ch[i].cfg.lcd_cfg.xres,
+ (int) priv->ch[i].cfg.lcd_cfg.yres,
+ priv->ch[i].cfg.bpp);
+ }
+
+ return 0;
+ err1:
+ sh_mobile_lcdc_remove(pdev);
+ err0:
+ return error;
+}
+
+static int sh_mobile_lcdc_remove(struct platform_device *pdev)
+{
+ struct sh_mobile_lcdc_priv *priv = platform_get_drvdata(pdev);
+ struct fb_info *info;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(priv->ch); i++)
+ if (priv->ch[i].info.dev)
+ unregister_framebuffer(&priv->ch[i].info);
+
+ sh_mobile_lcdc_stop(priv);
+
+ for (i = 0; i < ARRAY_SIZE(priv->ch); i++) {
+ info = &priv->ch[i].info;
+
+ if (!info->device)
+ continue;
+
+ dma_free_coherent(&pdev->dev, info->fix.smem_len,
+ info->screen_base, priv->ch[i].dma_handle);
+ fb_dealloc_cmap(&info->cmap);
+ }
+
+ if (priv->clk) {
+ clk_disable(priv->clk);
+ clk_put(priv->clk);
+ }
+
+ if (priv->base)
+ iounmap(priv->base);
+
+ kfree(priv);
+ return 0;
+}
+
+static struct platform_driver sh_mobile_lcdc_driver = {
+ .driver = {
+ .name = "sh_mobile_lcdc_fb",
+ .owner = THIS_MODULE,
+ },
+ .probe = sh_mobile_lcdc_probe,
+ .remove = sh_mobile_lcdc_remove,
+};
+
+static int __init sh_mobile_lcdc_init(void)
+{
+ return platform_driver_register(&sh_mobile_lcdc_driver);
+}
+
+static void __exit sh_mobile_lcdc_exit(void)
+{
+ platform_driver_unregister(&sh_mobile_lcdc_driver);
+}
+
+module_init(sh_mobile_lcdc_init);
+module_exit(sh_mobile_lcdc_exit);
+
+MODULE_DESCRIPTION("SuperH Mobile LCDC Framebuffer driver");
+MODULE_AUTHOR("Magnus Damm <damm@opensource.se>");
+MODULE_LICENSE("GPL v2");
#ifdef SIS_CP
#undef SIS_CP
#endif
-#include <linux/version.h>
#include <linux/types.h>
#include <asm/io.h>
#include <linux/fb.h>
#ifdef SIS_CP
#undef SIS_CP
#endif
-#include <linux/version.h>
#include <linux/types.h>
#include <asm/io.h>
#include <linux/fb.h>
#include "vgatypes.h"
#include "vstruct.h"
-#include <linux/version.h>
#include <linux/types.h>
#include <linux/fb.h>
/**********************************************************************/
#ifdef SIS_LINUX_KERNEL
-#include <linux/version.h>
#ifdef CONFIG_FB_SIS_300
#define SIS300
#ifndef _SIS_H_
#define _SIS_H_
-#include <linux/version.h>
-
#include "osdef.h"
#include <video/sisfb.h>
#define SIS_NEW_CONFIG_COMPAT
#endif /* CONFIG_COMPAT */
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,8)
-#define SIS_IOTYPE1 void __iomem
-#define SIS_IOTYPE2 __iomem
-#define SISINITSTATIC static
-#else
-#define SIS_IOTYPE1 unsigned char
-#define SIS_IOTYPE2
-#define SISINITSTATIC
-#endif
-
#undef SISFBDEBUG
#ifdef SISFBDEBUG
unsigned long UMAsize, LFBsize;
- SIS_IOTYPE1 *video_vbase;
- SIS_IOTYPE1 *mmio_vbase;
+ void __iomem *video_vbase;
+ void __iomem *mmio_vbase;
unsigned char *bios_abase;
int sisfb_nocrt2rate;
u32 heapstart; /* offset */
- SIS_IOTYPE1 *sisfb_heap_start; /* address */
- SIS_IOTYPE1 *sisfb_heap_end; /* address */
+ void __iomem *sisfb_heap_start; /* address */
+ void __iomem *sisfb_heap_end; /* address */
u32 sisfb_heap_size;
int havenoheap;
u8 detectedpdca;
u8 detectedlcda;
- SIS_IOTYPE1 *hwcursor_vbase;
+ void __iomem *hwcursor_vbase;
int chronteltype;
int tvxpos, tvypos;
* for more information and updates)
*/
-#include <linux/version.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/fb.h>
*
*/
-#include <linux/version.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17)
-#include <linux/tty.h>
-#else
#include <linux/screen_info.h>
-#endif
-
#include <linux/slab.h>
#include <linux/fb.h>
#include <linux/selection.h>
unsigned short modeno = ivideo->mode_no;
/* >=2.6.12's fbcon clears the screen anyway */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,12)
- if(!clrscrn) modeno |= 0x80;
-#else
modeno |= 0x80;
-#endif
outSISIDXREG(SISSR, IND_SIS_PASSWORD, SIS_PASSWORD);
if((err = sisfb_do_set_var(&info->var, 1, info)))
return err;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10)
- sisfb_get_fix(&info->fix, info->currcon, info);
-#else
sisfb_get_fix(&info->fix, -1, info);
-#endif
+
return 0;
}
/* ----------- FBDev related routines for all series ---------- */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15)
static int sisfb_ioctl(struct fb_info *info, unsigned int cmd,
unsigned long arg)
-#else
-static int sisfb_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg,
- struct fb_info *info)
-#endif
{
struct sis_video_info *ivideo = (struct sis_video_info *)info->par;
struct sis_memreq sismemreq;
}
#ifndef MODULE
-SISINITSTATIC int __init
-sisfb_setup(char *options)
+static int __init sisfb_setup(char *options)
{
char *this_opt;
#endif
static int __devinit
-sisfb_check_rom(SIS_IOTYPE1 *rom_base, struct sis_video_info *ivideo)
+sisfb_check_rom(void __iomem *rom_base, struct sis_video_info *ivideo)
{
- SIS_IOTYPE1 *rom;
+ void __iomem *rom;
int romptr;
if((readb(rom_base) != 0x55) || (readb(rom_base + 1) != 0xaa))
sisfb_find_rom(struct pci_dev *pdev)
{
struct sis_video_info *ivideo = pci_get_drvdata(pdev);
- SIS_IOTYPE1 *rom_base;
+ void __iomem *rom_base;
unsigned char *myrombase = NULL;
u32 temp;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,11)
size_t romsize;
/* First, try the official pci ROM functions (except
}
if(myrombase) return myrombase;
-#endif
/* Otherwise do it the conventional way. */
static int __devinit
sisfb_post_300_buswidth(struct sis_video_info *ivideo)
{
- SIS_IOTYPE1 *FBAddress = ivideo->video_vbase;
+ void __iomem *FBAddress = ivideo->video_vbase;
unsigned short temp;
unsigned char reg;
int i, j;
int PseudoRankCapacity, int PseudoAdrPinCount,
unsigned int mapsize)
{
- SIS_IOTYPE1 *FBAddr = ivideo->video_vbase;
+ void __iomem *FBAddr = ivideo->video_vbase;
unsigned short sr14;
unsigned int k, RankCapacity, PageCapacity, BankNumHigh, BankNumMid;
unsigned int PhysicalAdrOtherPage, PhysicalAdrHigh, PhysicalAdrHalfPage;
ivideo->engineok = 0;
ivideo->sisfb_was_boot_device = 0;
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,12))
+
if(pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW) {
if(ivideo->sisvga_enabled)
ivideo->sisfb_was_boot_device = 1;
"as the primary VGA device\n");
}
}
-#endif
ivideo->sisfb_parm_mem = sisfb_parm_mem;
ivideo->sisfb_accel = sisfb_accel;
ivideo->modeprechange = reg & 0x7f;
} else if(ivideo->sisvga_enabled) {
#if defined(__i386__) || defined(__x86_64__)
- unsigned char SIS_IOTYPE2 *tt = ioremap(0x400, 0x100);
+ unsigned char __iomem *tt = ioremap(0x400, 0x100);
if(tt) {
ivideo->modeprechange = readb(tt + 0x49);
iounmap(tt);
.remove = __devexit_p(sisfb_remove)
};
-SISINITSTATIC int __init sisfb_init(void)
+static int __init sisfb_init(void)
{
#ifndef MODULE
char *options = NULL;
/* Interface used by the world */
#ifndef MODULE
-SISINITSTATIC int sisfb_setup(char *options);
+static int sisfb_setup(char *options);
#endif
/* Interface to the low level console driver */
-SISINITSTATIC int sisfb_init(void);
+static int sisfb_init(void);
/* fbdev routines */
static int sisfb_get_fix(struct fb_fix_screeninfo *fix, int con,
#ifndef _VGATYPES_H_
#define _VGATYPES_H_
-#ifdef SIS_LINUX_KERNEL
-#include <linux/version.h>
-#endif
-
#define SISIOMEMTYPE
#ifdef SIS_LINUX_KERNEL
* Initialization
*/
-/* static int __init xxfb_probe (struct device *device) -- for platform devs */
+/* static int __init xxfb_probe (struct platform_device *pdev) -- for platform devs */
static int __devinit xxxfb_probe(struct pci_dev *dev,
const struct pci_device_id *ent)
{
struct fb_info *info;
struct xxx_par *par;
- struct device* device = &dev->dev; /* for pci drivers */
+ struct device *device = &dev->dev; /* or &pdev->dev */
int cmap_len, retval;
/*
return -EINVAL;
printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node,
info->fix.id);
- pci_set_drvdata(dev, info); /* or dev_set_drvdata(device, info) */
+ pci_set_drvdata(dev, info); /* or platform_set_drvdata(pdev, info) */
return 0;
}
/*
* Cleanup
*/
-/* static void __devexit xxxfb_remove(struct device *device) */
+/* static void __devexit xxxfb_remove(struct platform_device *pdev) */
static void __devexit xxxfb_remove(struct pci_dev *dev)
{
struct fb_info *info = pci_get_drvdata(dev);
- /* or dev_get_drvdata(device); */
+ /* or platform_get_drvdata(pdev); */
if (info) {
unregister_framebuffer(info);
#define xxxfb_resume NULL
#endif /* CONFIG_PM */
-static struct device_driver xxxfb_driver = {
- .name = "xxxfb",
- .bus = &platform_bus_type,
+static struct platform_device_driver xxxfb_driver = {
.probe = xxxfb_probe,
.remove = xxxfb_remove,
.suspend = xxxfb_suspend, /* optional but recommended */
.resume = xxxfb_resume, /* optional but recommended */
+ .driver = {
+ .name = "xxxfb",
+ },
};
-static struct platform_device xxxfb_device = {
- .name = "xxxfb",
-};
+static struct platform_device *xxxfb_device;
#ifndef MODULE
/*
return -ENODEV;
xxxfb_setup(option);
#endif
- ret = driver_register(&xxxfb_driver);
+ ret = platform_driver_register(&xxxfb_driver);
if (!ret) {
- ret = platform_device_register(&xxxfb_device);
- if (ret)
- driver_unregister(&xxxfb_driver);
+ xxxfb_device = platform_device_register_simple("xxxfb", 0,
+ NULL, 0);
+
+ if (IS_ERR(xxxfb_device)) {
+ platform_driver_unregister(&xxxfb_driver);
+ ret = PTR_ERR(xxxfb_device);
+ }
}
return ret;
static void __exit xxxfb_exit(void)
{
- platform_device_unregister(&xxxfb_device);
- driver_unregister(&xxxfb_driver);
+ platform_device_unregister(xxxfb_device);
+ platform_driver_unregister(&xxxfb_driver);
}
#endif /* CONFIG_PCI */
HEAD_PANEL = 1,
};
-/* SM501 memory address */
+/* SM501 memory address.
+ *
+ * This structure is used to track memory usage within the SM501 framebuffer
+ * allocation. The sm_addr field is stored as an offset as it is often used
+ * against both the physical and mapped addresses.
+ */
struct sm501_mem {
unsigned long size;
- unsigned long sm_addr;
+ unsigned long sm_addr; /* offset from base of sm501 fb. */
void __iomem *k_addr;
};
static int sm501_alloc_mem(struct sm501fb_info *inf, struct sm501_mem *mem,
unsigned int why, size_t size)
{
- unsigned int ptr = 0;
+ struct sm501fb_par *par;
+ struct fb_info *fbi;
+ unsigned int ptr;
+ unsigned int end;
switch (why) {
case SM501_MEMF_CURSOR:
ptr = inf->fbmem_len - size;
- inf->fbmem_len = ptr;
+ inf->fbmem_len = ptr; /* adjust available memory. */
break;
case SM501_MEMF_PANEL:
ptr = inf->fbmem_len - size;
- if (ptr < inf->fb[0]->fix.smem_len)
+ fbi = inf->fb[HEAD_CRT];
+
+ /* round down, some programs such as directfb do not draw
+ * 0,0 correctly unless the start is aligned to a page start.
+ */
+
+ if (ptr > 0)
+ ptr &= ~(PAGE_SIZE - 1);
+
+ if (fbi && ptr < fbi->fix.smem_len)
+ return -ENOMEM;
+
+ if (ptr < 0)
return -ENOMEM;
break;
case SM501_MEMF_CRT:
ptr = 0;
+
+ /* check to see if we have panel memory allocated
+ * which would put an limit on available memory. */
+
+ fbi = inf->fb[HEAD_PANEL];
+ if (fbi) {
+ par = fbi->par;
+ end = par->screen.k_addr ? par->screen.sm_addr : inf->fbmem_len;
+ } else
+ end = inf->fbmem_len;
+
+ if ((ptr + size) > end)
+ return -ENOMEM;
+
break;
case SM501_MEMF_ACCEL:
- ptr = inf->fb[0]->fix.smem_len;
+ fbi = inf->fb[HEAD_CRT];
+ ptr = fbi ? fbi->fix.smem_len : 0;
+
+ fbi = inf->fb[HEAD_PANEL];
+ if (fbi) {
+ par = fbi->par;
+ end = par->screen.sm_addr;
+ } else
+ end = inf->fbmem_len;
- if ((ptr + size) >
- (inf->fb[1]->fix.smem_start - inf->fbmem_res->start))
+ if ((ptr + size) > end)
return -ENOMEM;
+
break;
default:
sm501fb_sync_regs(fbi);
mdelay(10);
+ /* VBIASEN */
+
if (!(pd->flags & SM501FB_FLAG_PANEL_NO_VBIASEN)) {
- control |= SM501_DC_PANEL_CONTROL_BIAS; /* VBIASEN */
+ if (pd->flags & SM501FB_FLAG_PANEL_INV_VBIASEN)
+ control &= ~SM501_DC_PANEL_CONTROL_BIAS;
+ else
+ control |= SM501_DC_PANEL_CONTROL_BIAS;
+
writel(control, ctrl_reg);
sm501fb_sync_regs(fbi);
mdelay(10);
}
if (!(pd->flags & SM501FB_FLAG_PANEL_NO_FPEN)) {
- control |= SM501_DC_PANEL_CONTROL_FPEN;
+ if (pd->flags & SM501FB_FLAG_PANEL_INV_FPEN)
+ control &= ~SM501_DC_PANEL_CONTROL_FPEN;
+ else
+ control |= SM501_DC_PANEL_CONTROL_FPEN;
+
writel(control, ctrl_reg);
sm501fb_sync_regs(fbi);
mdelay(10);
} else if (!to && (control & SM501_DC_PANEL_CONTROL_VDD) != 0) {
/* disable panel power */
if (!(pd->flags & SM501FB_FLAG_PANEL_NO_FPEN)) {
- control &= ~SM501_DC_PANEL_CONTROL_FPEN;
+ if (pd->flags & SM501FB_FLAG_PANEL_INV_FPEN)
+ control |= SM501_DC_PANEL_CONTROL_FPEN;
+ else
+ control &= ~SM501_DC_PANEL_CONTROL_FPEN;
+
writel(control, ctrl_reg);
sm501fb_sync_regs(fbi);
mdelay(10);
}
if (!(pd->flags & SM501FB_FLAG_PANEL_NO_VBIASEN)) {
- control &= ~SM501_DC_PANEL_CONTROL_BIAS;
+ if (pd->flags & SM501FB_FLAG_PANEL_INV_VBIASEN)
+ control |= SM501_DC_PANEL_CONTROL_BIAS;
+ else
+ control &= ~SM501_DC_PANEL_CONTROL_BIAS;
+
writel(control, ctrl_reg);
sm501fb_sync_regs(fbi);
mdelay(10);
.fb_imageblit = cfb_imageblit,
};
-/* sm501fb_info_alloc
- *
- * creates and initialises an sm501fb_info structure
-*/
-
-static struct sm501fb_info *sm501fb_info_alloc(struct fb_info *fbinfo_crt,
- struct fb_info *fbinfo_pnl)
-{
- struct sm501fb_info *info;
- struct sm501fb_par *par;
-
- info = kzalloc(sizeof(struct sm501fb_info), GFP_KERNEL);
- if (info) {
- /* set the references back */
-
- par = fbinfo_crt->par;
- par->info = info;
- par->head = HEAD_CRT;
- fbinfo_crt->pseudo_palette = &par->pseudo_palette;
-
- par = fbinfo_pnl->par;
- par->info = info;
- par->head = HEAD_PANEL;
- fbinfo_pnl->pseudo_palette = &par->pseudo_palette;
-
- /* store the two fbs into our info */
- info->fb[HEAD_CRT] = fbinfo_crt;
- info->fb[HEAD_PANEL] = fbinfo_pnl;
- }
-
- return info;
-}
-
/* sm501_init_cursor
*
* initialise hw cursor parameters
static int sm501_init_cursor(struct fb_info *fbi, unsigned int reg_base)
{
- struct sm501fb_par *par = fbi->par;
- struct sm501fb_info *info = par->info;
+ struct sm501fb_par *par;
+ struct sm501fb_info *info;
int ret;
+ if (fbi == NULL)
+ return 0;
+
+ par = fbi->par;
+ info = par->info;
+
par->cursor_regs = info->regs + reg_base;
ret = sm501_alloc_mem(info, &par->cursor, SM501_MEMF_CURSOR, 1024);
struct platform_device *pdev)
{
struct resource *res;
- struct device *dev;
+ struct device *dev = &pdev->dev;
int k;
int ret;
- info->dev = dev = &pdev->dev;
- platform_set_drvdata(pdev, info);
-
info->irq = ret = platform_get_irq(pdev, 0);
if (ret < 0) {
/* we currently do not use the IRQ */
kfree(info->regs_res);
}
-static void sm501fb_info_release(struct sm501fb_info *info)
-{
- kfree(info);
-}
-
static int sm501fb_init_fb(struct fb_info *fb,
enum sm501_controller head,
const char *fbname)
static char driver_name_crt[] = "sm501fb-crt";
static char driver_name_pnl[] = "sm501fb-panel";
-static int __init sm501fb_probe(struct platform_device *pdev)
+static int __devinit sm501fb_probe_one(struct sm501fb_info *info,
+ enum sm501_controller head)
{
- struct sm501fb_info *info;
- struct device *dev = &pdev->dev;
- struct fb_info *fbinfo_crt;
- struct fb_info *fbinfo_pnl;
- int ret;
+ unsigned char *name = (head == HEAD_CRT) ? "crt" : "panel";
+ struct sm501_platdata_fbsub *pd;
+ struct sm501fb_par *par;
+ struct fb_info *fbi;
- /* allocate our framebuffers */
+ pd = (head == HEAD_CRT) ? info->pdata->fb_crt : info->pdata->fb_pnl;
+
+ /* Do not initialise if we've not been given any platform data */
+ if (pd == NULL) {
+ dev_info(info->dev, "no data for fb %s (disabled)\n", name);
+ return 0;
+ }
- fbinfo_crt = framebuffer_alloc(sizeof(struct sm501fb_par), dev);
- if (fbinfo_crt == NULL) {
- dev_err(dev, "cannot allocate crt framebuffer\n");
+ fbi = framebuffer_alloc(sizeof(struct sm501fb_par), info->dev);
+ if (fbi == NULL) {
+ dev_err(info->dev, "cannot allocate %s framebuffer\n", name);
return -ENOMEM;
}
- fbinfo_pnl = framebuffer_alloc(sizeof(struct sm501fb_par), dev);
- if (fbinfo_pnl == NULL) {
- dev_err(dev, "cannot allocate panel framebuffer\n");
- ret = -ENOMEM;
- goto fbinfo_crt_alloc_fail;
+ par = fbi->par;
+ par->info = info;
+ par->head = head;
+ fbi->pseudo_palette = &par->pseudo_palette;
+
+ info->fb[head] = fbi;
+
+ return 0;
+}
+
+/* Free up anything allocated by sm501fb_init_fb */
+
+static void sm501_free_init_fb(struct sm501fb_info *info,
+ enum sm501_controller head)
+{
+ struct fb_info *fbi = info->fb[head];
+
+ fb_dealloc_cmap(&fbi->cmap);
+}
+
+static int __devinit sm501fb_start_one(struct sm501fb_info *info,
+ enum sm501_controller head,
+ const char *drvname)
+{
+ struct fb_info *fbi = info->fb[head];
+ int ret;
+
+ if (!fbi)
+ return 0;
+
+ ret = sm501fb_init_fb(info->fb[head], head, drvname);
+ if (ret) {
+ dev_err(info->dev, "cannot initialise fb %s\n", drvname);
+ return ret;
+ }
+
+ ret = register_framebuffer(info->fb[head]);
+ if (ret) {
+ dev_err(info->dev, "failed to register fb %s\n", drvname);
+ sm501_free_init_fb(info, head);
+ return ret;
}
- info = sm501fb_info_alloc(fbinfo_crt, fbinfo_pnl);
- if (info == NULL) {
- dev_err(dev, "cannot allocate par\n");
- ret = -ENOMEM;
- goto sm501fb_alloc_fail;
+ dev_info(info->dev, "fb%d: %s frame buffer\n", fbi->node, fbi->fix.id);
+
+ return 0;
+}
+
+static int __devinit sm501fb_probe(struct platform_device *pdev)
+{
+ struct sm501fb_info *info;
+ struct device *dev = &pdev->dev;
+ int ret;
+
+ /* allocate our framebuffers */
+
+ info = kzalloc(sizeof(struct sm501fb_info), GFP_KERNEL);
+ if (!info) {
+ dev_err(dev, "failed to allocate state\n");
+ return -ENOMEM;
}
+ info->dev = dev = &pdev->dev;
+ platform_set_drvdata(pdev, info);
+
if (dev->parent->platform_data) {
struct sm501_platdata *pd = dev->parent->platform_data;
info->pdata = pd->fb;
info->pdata = &sm501fb_def_pdata;
}
- /* start the framebuffers */
+ /* probe for the presence of each panel */
- ret = sm501fb_start(info, pdev);
- if (ret) {
- dev_err(dev, "cannot initialise SM501\n");
- goto sm501fb_start_fail;
+ ret = sm501fb_probe_one(info, HEAD_CRT);
+ if (ret < 0) {
+ dev_err(dev, "failed to probe CRT\n");
+ goto err_alloc;
}
- /* CRT framebuffer setup */
+ ret = sm501fb_probe_one(info, HEAD_PANEL);
+ if (ret < 0) {
+ dev_err(dev, "failed to probe PANEL\n");
+ goto err_probed_crt;
+ }
- ret = sm501fb_init_fb(fbinfo_crt, HEAD_CRT, driver_name_crt);
- if (ret) {
- dev_err(dev, "cannot initialise CRT fb\n");
- goto sm501fb_start_fail;
+ if (info->fb[HEAD_PANEL] == NULL &&
+ info->fb[HEAD_CRT] == NULL) {
+ dev_err(dev, "no framebuffers found\n");
+ goto err_alloc;
}
- /* Panel framebuffer setup */
+ /* get the resources for both of the framebuffers */
- ret = sm501fb_init_fb(fbinfo_pnl, HEAD_PANEL, driver_name_pnl);
+ ret = sm501fb_start(info, pdev);
if (ret) {
- dev_err(dev, "cannot initialise Panel fb\n");
- goto sm501fb_start_fail;
+ dev_err(dev, "cannot initialise SM501\n");
+ goto err_probed_panel;
}
- /* register framebuffers */
-
- ret = register_framebuffer(fbinfo_crt);
- if (ret < 0) {
- dev_err(dev, "failed to register CRT fb (%d)\n", ret);
- goto register_crt_fail;
+ ret = sm501fb_start_one(info, HEAD_CRT, driver_name_crt);
+ if (ret) {
+ dev_err(dev, "failed to start CRT\n");
+ goto err_started;
}
- ret = register_framebuffer(fbinfo_pnl);
- if (ret < 0) {
- dev_err(dev, "failed to register panel fb (%d)\n", ret);
- goto register_pnl_fail;
+ ret = sm501fb_start_one(info, HEAD_PANEL, driver_name_pnl);
+ if (ret) {
+ dev_err(dev, "failed to start Panel\n");
+ goto err_started_crt;
}
- dev_info(dev, "fb%d: %s frame buffer device\n",
- fbinfo_crt->node, fbinfo_crt->fix.id);
-
- dev_info(dev, "fb%d: %s frame buffer device\n",
- fbinfo_pnl->node, fbinfo_pnl->fix.id);
-
/* create device files */
ret = device_create_file(dev, &dev_attr_crt_src);
if (ret)
- goto crtsrc_fail;
+ goto err_started_panel;
ret = device_create_file(dev, &dev_attr_fbregs_pnl);
if (ret)
- goto fbregs_pnl_fail;
+ goto err_attached_crtsrc_file;
ret = device_create_file(dev, &dev_attr_fbregs_crt);
if (ret)
- goto fbregs_crt_fail;
+ goto err_attached_pnlregs_file;
/* we registered, return ok */
return 0;
- fbregs_crt_fail:
+err_attached_pnlregs_file:
device_remove_file(dev, &dev_attr_fbregs_pnl);
- fbregs_pnl_fail:
+err_attached_crtsrc_file:
device_remove_file(dev, &dev_attr_crt_src);
- crtsrc_fail:
- unregister_framebuffer(fbinfo_pnl);
+err_started_panel:
+ unregister_framebuffer(info->fb[HEAD_PANEL]);
+ sm501_free_init_fb(info, HEAD_PANEL);
- register_pnl_fail:
- unregister_framebuffer(fbinfo_crt);
+err_started_crt:
+ unregister_framebuffer(info->fb[HEAD_CRT]);
+ sm501_free_init_fb(info, HEAD_CRT);
- register_crt_fail:
+err_started:
sm501fb_stop(info);
- sm501fb_start_fail:
- sm501fb_info_release(info);
+err_probed_panel:
+ framebuffer_release(info->fb[HEAD_PANEL]);
- sm501fb_alloc_fail:
- framebuffer_release(fbinfo_pnl);
+err_probed_crt:
+ framebuffer_release(info->fb[HEAD_CRT]);
- fbinfo_crt_alloc_fail:
- framebuffer_release(fbinfo_crt);
+err_alloc:
+ kfree(info);
return ret;
}
device_remove_file(&pdev->dev, &dev_attr_fbregs_pnl);
device_remove_file(&pdev->dev, &dev_attr_crt_src);
+ sm501_free_init_fb(info, HEAD_CRT);
+ sm501_free_init_fb(info, HEAD_PANEL);
+
unregister_framebuffer(fbinfo_crt);
unregister_framebuffer(fbinfo_pnl);
sm501fb_stop(info);
- sm501fb_info_release(info);
+ kfree(info);
framebuffer_release(fbinfo_pnl);
framebuffer_release(fbinfo_crt);
struct tdfx_par *par = info->par;
u32 addr = var->yoffset * info->fix.line_length;
- if (nopan || var->xoffset || (var->yoffset > var->yres_virtual))
- return -EINVAL;
- if ((var->yoffset + var->yres > var->yres_virtual && nowrap))
+ if (nopan || var->xoffset)
return -EINVAL;
banshee_make_room(par, 1);
tdfx_outl(par, VIDDESKSTART, addr);
- info->var.xoffset = var->xoffset;
- info->var.yoffset = var->yoffset;
return 0;
}
module_param(hwcursor, int, 0644);
MODULE_PARM_DESC(hwcursor, "Enable hardware cursor "
"(1=enable, 0=disable, default=1)");
+module_param(mode_option, charp, 0);
+MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'");
#ifdef CONFIG_MTRR
module_param(nomtrr, bool, 0);
MODULE_PARM_DESC(nomtrr, "Disable MTRR support (default: enabled)");
/*
- * Frame buffer driver for Trident Blade and Image series
+ * Frame buffer driver for Trident TGUI, Blade and Image series
*
* Copyright 2001, 2002 - Jani Monoses <jani@iv.ro>
*
* code, suggestions
* TODO:
* timing value tweaking so it looks good on every monitor in every mode
- * TGUI acceleration
*/
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/delay.h>
+#include <video/vga.h>
#include <video/trident.h>
-#define VERSION "0.7.8-NEWAPI"
-
struct tridentfb_par {
void __iomem *io_virt; /* iospace virtual memory address */
+ u32 pseudo_pal[16];
+ int chip_id;
+ int flatpanel;
+ void (*init_accel) (struct tridentfb_par *, int, int);
+ void (*wait_engine) (struct tridentfb_par *);
+ void (*fill_rect)
+ (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32);
+ void (*copy_rect)
+ (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32);
+ void (*image_blit)
+ (struct tridentfb_par *par, const char*,
+ u32, u32, u32, u32, u32, u32);
+ unsigned char eng_oper; /* engine operation... */
};
-static unsigned char eng_oper; /* engine operation... */
-static struct fb_ops tridentfb_ops;
-
-static struct tridentfb_par default_par;
-
-/* FIXME:kmalloc these 3 instead */
-static struct fb_info fb_info;
-static u32 pseudo_pal[16];
-
-static struct fb_var_screeninfo default_var;
-
static struct fb_fix_screeninfo tridentfb_fix = {
.id = "Trident",
.type = FB_TYPE_PACKED_PIXELS,
.accel = FB_ACCEL_NONE,
};
-static int chip_id;
-
-static int defaultaccel;
-static int displaytype;
-
/* defaults which are normally overriden by user values */
/* video mode */
-static char *mode_option __devinitdata = "640x480";
-static int bpp = 8;
+static char *mode_option __devinitdata = "640x480-8@60";
+static int bpp __devinitdata = 8;
-static int noaccel;
+static int noaccel __devinitdata;
static int center;
static int stretch;
-static int fp;
-static int crt;
+static int fp __devinitdata;
+static int crt __devinitdata;
-static int memsize;
-static int memdiff;
+static int memsize __devinitdata;
+static int memdiff __devinitdata;
static int nativex;
module_param(mode_option, charp, 0);
module_param(memdiff, int, 0);
module_param(nativex, int, 0);
module_param(fp, int, 0);
+MODULE_PARM_DESC(fp, "Define if flatpanel is connected");
module_param(crt, int, 0);
+MODULE_PARM_DESC(crt, "Define if CRT is connected");
+
+static inline int is_oldclock(int id)
+{
+ return (id == TGUI9440) ||
+ (id == TGUI9660) ||
+ (id == CYBER9320);
+}
+
+static inline int is_oldprotect(int id)
+{
+ return is_oldclock(id) ||
+ (id == PROVIDIA9685) ||
+ (id == CYBER9382) ||
+ (id == CYBER9385);
+}
+
+static inline int is_blade(int id)
+{
+ return (id == BLADE3D) ||
+ (id == CYBERBLADEE4) ||
+ (id == CYBERBLADEi7) ||
+ (id == CYBERBLADEi7D) ||
+ (id == CYBERBLADEi1) ||
+ (id == CYBERBLADEi1D) ||
+ (id == CYBERBLADEAi1) ||
+ (id == CYBERBLADEAi1D);
+}
-static int chip3D;
-static int chipcyber;
+static inline int is_xp(int id)
+{
+ return (id == CYBERBLADEXPAi1) ||
+ (id == CYBERBLADEXPm8) ||
+ (id == CYBERBLADEXPm16);
+}
-static int is3Dchip(int id)
+static inline int is3Dchip(int id)
{
- return ((id == BLADE3D) || (id == CYBERBLADEE4) ||
- (id == CYBERBLADEi7) || (id == CYBERBLADEi7D) ||
+ return is_blade(id) || is_xp(id) ||
(id == CYBER9397) || (id == CYBER9397DVD) ||
(id == CYBER9520) || (id == CYBER9525DVD) ||
- (id == IMAGE975) || (id == IMAGE985) ||
- (id == CYBERBLADEi1) || (id == CYBERBLADEi1D) ||
- (id == CYBERBLADEAi1) || (id == CYBERBLADEAi1D) ||
- (id == CYBERBLADEXPm8) || (id == CYBERBLADEXPm16) ||
- (id == CYBERBLADEXPAi1));
+ (id == IMAGE975) || (id == IMAGE985);
}
-static int iscyber(int id)
+static inline int iscyber(int id)
{
switch (id) {
case CYBER9388:
return 1;
case CYBER9320:
- case TGUI9660:
- case IMAGE975:
- case IMAGE985:
- case BLADE3D:
case CYBERBLADEi7: /* VIA MPV4 integrated version */
-
default:
/* case CYBERBLDAEXPm8: Strange */
/* case CYBERBLDAEXPm16: Strange */
}
}
-#define CRT 0x3D0 /* CRTC registers offset for color display */
-
-#ifndef TRIDENT_MMIO
- #define TRIDENT_MMIO 1
-#endif
-
-#if TRIDENT_MMIO
- #define t_outb(val, reg) writeb(val,((struct tridentfb_par *)(fb_info.par))->io_virt + reg)
- #define t_inb(reg) readb(((struct tridentfb_par*)(fb_info.par))->io_virt + reg)
-#else
- #define t_outb(val, reg) outb(val, reg)
- #define t_inb(reg) inb(reg)
-#endif
+static inline void t_outb(struct tridentfb_par *p, u8 val, u16 reg)
+{
+ fb_writeb(val, p->io_virt + reg);
+}
+static inline u8 t_inb(struct tridentfb_par *p, u16 reg)
+{
+ return fb_readb(p->io_virt + reg);
+}
-static struct accel_switch {
- void (*init_accel) (int, int);
- void (*wait_engine) (void);
- void (*fill_rect) (u32, u32, u32, u32, u32, u32);
- void (*copy_rect) (u32, u32, u32, u32, u32, u32);
-} *acc;
+static inline void writemmr(struct tridentfb_par *par, u16 r, u32 v)
+{
+ fb_writel(v, par->io_virt + r);
+}
-#define writemmr(r, v) writel(v, ((struct tridentfb_par *)fb_info.par)->io_virt + r)
-#define readmmr(r) readl(((struct tridentfb_par *)fb_info.par)->io_virt + r)
+static inline u32 readmmr(struct tridentfb_par *par, u16 r)
+{
+ return fb_readl(par->io_virt + r);
+}
/*
* Blade specific acceleration.
*/
#define point(x, y) ((y) << 16 | (x))
-#define STA 0x2120
-#define CMD 0x2144
-#define ROP 0x2148
-#define CLR 0x2160
-#define SR1 0x2100
-#define SR2 0x2104
-#define DR1 0x2108
-#define DR2 0x210C
-
-#define ROP_S 0xCC
-
-static void blade_init_accel(int pitch, int bpp)
+
+static void blade_init_accel(struct tridentfb_par *par, int pitch, int bpp)
{
int v1 = (pitch >> 3) << 20;
- int tmp = 0, v2;
- switch (bpp) {
- case 8:
- tmp = 0;
- break;
- case 15:
- tmp = 5;
- break;
- case 16:
- tmp = 1;
- break;
- case 24:
- case 32:
- tmp = 2;
- break;
- }
- v2 = v1 | (tmp << 29);
- writemmr(0x21C0, v2);
- writemmr(0x21C4, v2);
- writemmr(0x21B8, v2);
- writemmr(0x21BC, v2);
- writemmr(0x21D0, v1);
- writemmr(0x21D4, v1);
- writemmr(0x21C8, v1);
- writemmr(0x21CC, v1);
- writemmr(0x216C, 0);
+ int tmp = bpp == 24 ? 2 : (bpp >> 4);
+ int v2 = v1 | (tmp << 29);
+
+ writemmr(par, 0x21C0, v2);
+ writemmr(par, 0x21C4, v2);
+ writemmr(par, 0x21B8, v2);
+ writemmr(par, 0x21BC, v2);
+ writemmr(par, 0x21D0, v1);
+ writemmr(par, 0x21D4, v1);
+ writemmr(par, 0x21C8, v1);
+ writemmr(par, 0x21CC, v1);
+ writemmr(par, 0x216C, 0);
}
-static void blade_wait_engine(void)
+static void blade_wait_engine(struct tridentfb_par *par)
{
- while (readmmr(STA) & 0xFA800000) ;
+ while (readmmr(par, STATUS) & 0xFA800000)
+ cpu_relax();
}
-static void blade_fill_rect(u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
+static void blade_fill_rect(struct tridentfb_par *par,
+ u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
{
- writemmr(CLR, c);
- writemmr(ROP, rop ? 0x66 : ROP_S);
- writemmr(CMD, 0x20000000 | 1 << 19 | 1 << 4 | 2 << 2);
+ writemmr(par, COLOR, c);
+ writemmr(par, ROP, rop ? ROP_X : ROP_S);
+ writemmr(par, CMD, 0x20000000 | 1 << 19 | 1 << 4 | 2 << 2);
- writemmr(DR1, point(x, y));
- writemmr(DR2, point(x + w - 1, y + h - 1));
+ writemmr(par, DST1, point(x, y));
+ writemmr(par, DST2, point(x + w - 1, y + h - 1));
}
-static void blade_copy_rect(u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
+static void blade_image_blit(struct tridentfb_par *par, const char *data,
+ u32 x, u32 y, u32 w, u32 h, u32 c, u32 b)
+{
+ unsigned size = ((w + 31) >> 5) * h;
+
+ writemmr(par, COLOR, c);
+ writemmr(par, BGCOLOR, b);
+ writemmr(par, CMD, 0xa0000000 | 3 << 19);
+
+ writemmr(par, DST1, point(x, y));
+ writemmr(par, DST2, point(x + w - 1, y + h - 1));
+
+ memcpy(par->io_virt + 0x10000, data, 4 * size);
+}
+
+static void blade_copy_rect(struct tridentfb_par *par,
+ u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
{
- u32 s1, s2, d1, d2;
int direction = 2;
- s1 = point(x1, y1);
- s2 = point(x1 + w - 1, y1 + h - 1);
- d1 = point(x2, y2);
- d2 = point(x2 + w - 1, y2 + h - 1);
+ u32 s1 = point(x1, y1);
+ u32 s2 = point(x1 + w - 1, y1 + h - 1);
+ u32 d1 = point(x2, y2);
+ u32 d2 = point(x2 + w - 1, y2 + h - 1);
if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
direction = 0;
- writemmr(ROP, ROP_S);
- writemmr(CMD, 0xE0000000 | 1 << 19 | 1 << 4 | 1 << 2 | direction);
+ writemmr(par, ROP, ROP_S);
+ writemmr(par, CMD, 0xE0000000 | 1 << 19 | 1 << 4 | 1 << 2 | direction);
- writemmr(SR1, direction ? s2 : s1);
- writemmr(SR2, direction ? s1 : s2);
- writemmr(DR1, direction ? d2 : d1);
- writemmr(DR2, direction ? d1 : d2);
+ writemmr(par, SRC1, direction ? s2 : s1);
+ writemmr(par, SRC2, direction ? s1 : s2);
+ writemmr(par, DST1, direction ? d2 : d1);
+ writemmr(par, DST2, direction ? d1 : d2);
}
-static struct accel_switch accel_blade = {
- blade_init_accel,
- blade_wait_engine,
- blade_fill_rect,
- blade_copy_rect,
-};
-
/*
* BladeXP specific acceleration functions
*/
-#define ROP_P 0xF0
-#define masked_point(x, y) ((y & 0xffff)<<16|(x & 0xffff))
-
-static void xp_init_accel(int pitch, int bpp)
+static void xp_init_accel(struct tridentfb_par *par, int pitch, int bpp)
{
- int tmp = 0, v1;
- unsigned char x = 0;
-
- switch (bpp) {
- case 8:
- x = 0;
- break;
- case 16:
- x = 1;
- break;
- case 24:
- x = 3;
- break;
- case 32:
- x = 2;
- break;
- }
+ unsigned char x = bpp == 24 ? 3 : (bpp >> 4);
+ int v1 = pitch << (bpp == 24 ? 20 : (18 + x));
switch (pitch << (bpp >> 3)) {
case 8192:
break;
}
- t_outb(x, 0x2125);
-
- eng_oper = x | 0x40;
-
- switch (bpp) {
- case 8:
- tmp = 18;
- break;
- case 15:
- case 16:
- tmp = 19;
- break;
- case 24:
- case 32:
- tmp = 20;
- break;
- }
+ t_outb(par, x, 0x2125);
- v1 = pitch << tmp;
+ par->eng_oper = x | 0x40;
- writemmr(0x2154, v1);
- writemmr(0x2150, v1);
- t_outb(3, 0x2126);
+ writemmr(par, 0x2154, v1);
+ writemmr(par, 0x2150, v1);
+ t_outb(par, 3, 0x2126);
}
-static void xp_wait_engine(void)
+static void xp_wait_engine(struct tridentfb_par *par)
{
- int busy;
- int count, timeout;
-
- count = 0;
- timeout = 0;
- for (;;) {
- busy = t_inb(STA) & 0x80;
- if (busy != 0x80)
- return;
+ int count = 0;
+ int timeout = 0;
+
+ while (t_inb(par, STATUS) & 0x80) {
count++;
if (count == 10000000) {
/* Timeout */
timeout++;
if (timeout == 8) {
/* Reset engine */
- t_outb(0x00, 0x2120);
+ t_outb(par, 0x00, STATUS);
return;
}
}
+ cpu_relax();
}
}
-static void xp_fill_rect(u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
+static void xp_fill_rect(struct tridentfb_par *par,
+ u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
{
- writemmr(0x2127, ROP_P);
- writemmr(0x2158, c);
- writemmr(0x2128, 0x4000);
- writemmr(0x2140, masked_point(h, w));
- writemmr(0x2138, masked_point(y, x));
- t_outb(0x01, 0x2124);
- t_outb(eng_oper, 0x2125);
+ writemmr(par, 0x2127, ROP_P);
+ writemmr(par, 0x2158, c);
+ writemmr(par, DRAWFL, 0x4000);
+ writemmr(par, OLDDIM, point(h, w));
+ writemmr(par, OLDDST, point(y, x));
+ t_outb(par, 0x01, OLDCMD);
+ t_outb(par, par->eng_oper, 0x2125);
}
-static void xp_copy_rect(u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
+static void xp_copy_rect(struct tridentfb_par *par,
+ u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
{
- int direction;
u32 x1_tmp, x2_tmp, y1_tmp, y2_tmp;
-
- direction = 0x0004;
+ int direction = 0x0004;
if ((x1 < x2) && (y1 == y2)) {
direction |= 0x0200;
y2_tmp = y2;
}
- writemmr(0x2128, direction);
- t_outb(ROP_S, 0x2127);
- writemmr(0x213C, masked_point(y1_tmp, x1_tmp));
- writemmr(0x2138, masked_point(y2_tmp, x2_tmp));
- writemmr(0x2140, masked_point(h, w));
- t_outb(0x01, 0x2124);
+ writemmr(par, DRAWFL, direction);
+ t_outb(par, ROP_S, 0x2127);
+ writemmr(par, OLDSRC, point(y1_tmp, x1_tmp));
+ writemmr(par, OLDDST, point(y2_tmp, x2_tmp));
+ writemmr(par, OLDDIM, point(h, w));
+ t_outb(par, 0x01, OLDCMD);
}
-static struct accel_switch accel_xp = {
- xp_init_accel,
- xp_wait_engine,
- xp_fill_rect,
- xp_copy_rect,
-};
-
/*
* Image specific acceleration functions
*/
-static void image_init_accel(int pitch, int bpp)
+static void image_init_accel(struct tridentfb_par *par, int pitch, int bpp)
{
- int tmp = 0;
- switch (bpp) {
- case 8:
- tmp = 0;
- break;
- case 15:
- tmp = 5;
- break;
- case 16:
- tmp = 1;
- break;
- case 24:
- case 32:
- tmp = 2;
- break;
- }
- writemmr(0x2120, 0xF0000000);
- writemmr(0x2120, 0x40000000 | tmp);
- writemmr(0x2120, 0x80000000);
- writemmr(0x2144, 0x00000000);
- writemmr(0x2148, 0x00000000);
- writemmr(0x2150, 0x00000000);
- writemmr(0x2154, 0x00000000);
- writemmr(0x2120, 0x60000000 | (pitch << 16) | pitch);
- writemmr(0x216C, 0x00000000);
- writemmr(0x2170, 0x00000000);
- writemmr(0x217C, 0x00000000);
- writemmr(0x2120, 0x10000000);
- writemmr(0x2130, (2047 << 16) | 2047);
+ int tmp = bpp == 24 ? 2: (bpp >> 4);
+
+ writemmr(par, 0x2120, 0xF0000000);
+ writemmr(par, 0x2120, 0x40000000 | tmp);
+ writemmr(par, 0x2120, 0x80000000);
+ writemmr(par, 0x2144, 0x00000000);
+ writemmr(par, 0x2148, 0x00000000);
+ writemmr(par, 0x2150, 0x00000000);
+ writemmr(par, 0x2154, 0x00000000);
+ writemmr(par, 0x2120, 0x60000000 | (pitch << 16) | pitch);
+ writemmr(par, 0x216C, 0x00000000);
+ writemmr(par, 0x2170, 0x00000000);
+ writemmr(par, 0x217C, 0x00000000);
+ writemmr(par, 0x2120, 0x10000000);
+ writemmr(par, 0x2130, (2047 << 16) | 2047);
}
-static void image_wait_engine(void)
+static void image_wait_engine(struct tridentfb_par *par)
{
- while (readmmr(0x2164) & 0xF0000000) ;
+ while (readmmr(par, 0x2164) & 0xF0000000)
+ cpu_relax();
}
-static void image_fill_rect(u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
+static void image_fill_rect(struct tridentfb_par *par,
+ u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
{
- writemmr(0x2120, 0x80000000);
- writemmr(0x2120, 0x90000000 | ROP_S);
+ writemmr(par, 0x2120, 0x80000000);
+ writemmr(par, 0x2120, 0x90000000 | ROP_S);
- writemmr(0x2144, c);
+ writemmr(par, 0x2144, c);
- writemmr(DR1, point(x, y));
- writemmr(DR2, point(x + w - 1, y + h - 1));
+ writemmr(par, DST1, point(x, y));
+ writemmr(par, DST2, point(x + w - 1, y + h - 1));
- writemmr(0x2124, 0x80000000 | 3 << 22 | 1 << 10 | 1 << 9);
+ writemmr(par, 0x2124, 0x80000000 | 3 << 22 | 1 << 10 | 1 << 9);
}
-static void image_copy_rect(u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
+static void image_copy_rect(struct tridentfb_par *par,
+ u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
{
- u32 s1, s2, d1, d2;
- int direction = 2;
- s1 = point(x1, y1);
- s2 = point(x1 + w - 1, y1 + h - 1);
- d1 = point(x2, y2);
- d2 = point(x2 + w - 1, y2 + h - 1);
+ int direction = 0x4;
+ u32 s1 = point(x1, y1);
+ u32 s2 = point(x1 + w - 1, y1 + h - 1);
+ u32 d1 = point(x2, y2);
+ u32 d2 = point(x2 + w - 1, y2 + h - 1);
if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
direction = 0;
- writemmr(0x2120, 0x80000000);
- writemmr(0x2120, 0x90000000 | ROP_S);
+ writemmr(par, 0x2120, 0x80000000);
+ writemmr(par, 0x2120, 0x90000000 | ROP_S);
- writemmr(SR1, direction ? s2 : s1);
- writemmr(SR2, direction ? s1 : s2);
- writemmr(DR1, direction ? d2 : d1);
- writemmr(DR2, direction ? d1 : d2);
- writemmr(0x2124, 0x80000000 | 1 << 22 | 1 << 10 | 1 << 7 | direction);
+ writemmr(par, SRC1, direction ? s2 : s1);
+ writemmr(par, SRC2, direction ? s1 : s2);
+ writemmr(par, DST1, direction ? d2 : d1);
+ writemmr(par, DST2, direction ? d1 : d2);
+ writemmr(par, 0x2124,
+ 0x80000000 | 1 << 22 | 1 << 10 | 1 << 7 | direction);
}
-static struct accel_switch accel_image = {
- image_init_accel,
- image_wait_engine,
- image_fill_rect,
- image_copy_rect,
-};
+/*
+ * TGUI 9440/96XX acceleration
+ */
+
+static void tgui_init_accel(struct tridentfb_par *par, int pitch, int bpp)
+{
+ unsigned char x = bpp == 24 ? 3 : (bpp >> 4);
+
+ /* disable clipping */
+ writemmr(par, 0x2148, 0);
+ writemmr(par, 0x214C, point(4095, 2047));
+
+ switch ((pitch * bpp) / 8) {
+ case 8192:
+ case 512:
+ x |= 0x00;
+ break;
+ case 1024:
+ x |= 0x04;
+ break;
+ case 2048:
+ x |= 0x08;
+ break;
+ case 4096:
+ x |= 0x0C;
+ break;
+ }
+
+ fb_writew(x, par->io_virt + 0x2122);
+}
+
+static void tgui_fill_rect(struct tridentfb_par *par,
+ u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
+{
+ t_outb(par, ROP_P, 0x2127);
+ writemmr(par, OLDCLR, c);
+ writemmr(par, DRAWFL, 0x4020);
+ writemmr(par, OLDDIM, point(w - 1, h - 1));
+ writemmr(par, OLDDST, point(x, y));
+ t_outb(par, 1, OLDCMD);
+}
+
+static void tgui_copy_rect(struct tridentfb_par *par,
+ u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
+{
+ int flags = 0;
+ u16 x1_tmp, x2_tmp, y1_tmp, y2_tmp;
+
+ if ((x1 < x2) && (y1 == y2)) {
+ flags |= 0x0200;
+ x1_tmp = x1 + w - 1;
+ x2_tmp = x2 + w - 1;
+ } else {
+ x1_tmp = x1;
+ x2_tmp = x2;
+ }
+
+ if (y1 < y2) {
+ flags |= 0x0100;
+ y1_tmp = y1 + h - 1;
+ y2_tmp = y2 + h - 1;
+ } else {
+ y1_tmp = y1;
+ y2_tmp = y2;
+ }
+
+ writemmr(par, DRAWFL, 0x4 | flags);
+ t_outb(par, ROP_S, 0x2127);
+ writemmr(par, OLDSRC, point(x1_tmp, y1_tmp));
+ writemmr(par, OLDDST, point(x2_tmp, y2_tmp));
+ writemmr(par, OLDDIM, point(w - 1, h - 1));
+ t_outb(par, 1, OLDCMD);
+}
/*
* Accel functions called by the upper layers
static void tridentfb_fillrect(struct fb_info *info,
const struct fb_fillrect *fr)
{
- int bpp = info->var.bits_per_pixel;
- int col = 0;
+ struct tridentfb_par *par = info->par;
+ int col;
- switch (bpp) {
- default:
- case 8:
- col |= fr->color;
+ if (info->flags & FBINFO_HWACCEL_DISABLED) {
+ cfb_fillrect(info, fr);
+ return;
+ }
+ if (info->var.bits_per_pixel == 8) {
+ col = fr->color;
col |= col << 8;
col |= col << 16;
- break;
- case 16:
+ } else
col = ((u32 *)(info->pseudo_palette))[fr->color];
- break;
- case 32:
- col = ((u32 *)(info->pseudo_palette))[fr->color];
- break;
+
+ par->wait_engine(par);
+ par->fill_rect(par, fr->dx, fr->dy, fr->width,
+ fr->height, col, fr->rop);
+}
+
+static void tridentfb_imageblit(struct fb_info *info,
+ const struct fb_image *img)
+{
+ struct tridentfb_par *par = info->par;
+ int col, bgcol;
+
+ if ((info->flags & FBINFO_HWACCEL_DISABLED) || img->depth != 1) {
+ cfb_imageblit(info, img);
+ return;
+ }
+ if (info->var.bits_per_pixel == 8) {
+ col = img->fg_color;
+ col |= col << 8;
+ col |= col << 16;
+ bgcol = img->bg_color;
+ bgcol |= bgcol << 8;
+ bgcol |= bgcol << 16;
+ } else {
+ col = ((u32 *)(info->pseudo_palette))[img->fg_color];
+ bgcol = ((u32 *)(info->pseudo_palette))[img->bg_color];
}
- acc->fill_rect(fr->dx, fr->dy, fr->width, fr->height, col, fr->rop);
- acc->wait_engine();
+ par->wait_engine(par);
+ if (par->image_blit)
+ par->image_blit(par, img->data, img->dx, img->dy,
+ img->width, img->height, col, bgcol);
+ else
+ cfb_imageblit(info, img);
}
+
static void tridentfb_copyarea(struct fb_info *info,
const struct fb_copyarea *ca)
{
- acc->copy_rect(ca->sx, ca->sy, ca->dx, ca->dy, ca->width, ca->height);
- acc->wait_engine();
+ struct tridentfb_par *par = info->par;
+
+ if (info->flags & FBINFO_HWACCEL_DISABLED) {
+ cfb_copyarea(info, ca);
+ return;
+ }
+ par->wait_engine(par);
+ par->copy_rect(par, ca->sx, ca->sy, ca->dx, ca->dy,
+ ca->width, ca->height);
+}
+
+static int tridentfb_sync(struct fb_info *info)
+{
+ struct tridentfb_par *par = info->par;
+
+ if (!(info->flags & FBINFO_HWACCEL_DISABLED))
+ par->wait_engine(par);
+ return 0;
}
-#else /* !CONFIG_FB_TRIDENT_ACCEL */
+#else
#define tridentfb_fillrect cfb_fillrect
#define tridentfb_copyarea cfb_copyarea
+#define tridentfb_imageblit cfb_imageblit
#endif /* CONFIG_FB_TRIDENT_ACCEL */
-
/*
* Hardware access functions
*/
-static inline unsigned char read3X4(int reg)
+static inline unsigned char read3X4(struct tridentfb_par *par, int reg)
{
- struct tridentfb_par *par = (struct tridentfb_par *)fb_info.par;
- writeb(reg, par->io_virt + CRT + 4);
- return readb(par->io_virt + CRT + 5);
+ return vga_mm_rcrt(par->io_virt, reg);
}
-static inline void write3X4(int reg, unsigned char val)
+static inline void write3X4(struct tridentfb_par *par, int reg,
+ unsigned char val)
{
- struct tridentfb_par *par = (struct tridentfb_par *)fb_info.par;
- writeb(reg, par->io_virt + CRT + 4);
- writeb(val, par->io_virt + CRT + 5);
+ vga_mm_wcrt(par->io_virt, reg, val);
}
-static inline unsigned char read3C4(int reg)
+static inline unsigned char read3CE(struct tridentfb_par *par,
+ unsigned char reg)
{
- t_outb(reg, 0x3C4);
- return t_inb(0x3C5);
+ return vga_mm_rgfx(par->io_virt, reg);
}
-static inline void write3C4(int reg, unsigned char val)
+static inline void writeAttr(struct tridentfb_par *par, int reg,
+ unsigned char val)
{
- t_outb(reg, 0x3C4);
- t_outb(val, 0x3C5);
+ fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */
+ vga_mm_wattr(par->io_virt, reg, val);
}
-static inline unsigned char read3CE(int reg)
+static inline void write3CE(struct tridentfb_par *par, int reg,
+ unsigned char val)
{
- t_outb(reg, 0x3CE);
- return t_inb(0x3CF);
+ vga_mm_wgfx(par->io_virt, reg, val);
}
-static inline void writeAttr(int reg, unsigned char val)
-{
- readb(((struct tridentfb_par *)fb_info.par)->io_virt + CRT + 0x0A); /* flip-flop to index */
- t_outb(reg, 0x3C0);
- t_outb(val, 0x3C0);
-}
-
-static inline void write3CE(int reg, unsigned char val)
-{
- t_outb(reg, 0x3CE);
- t_outb(val, 0x3CF);
-}
-
-static void enable_mmio(void)
+static void enable_mmio(struct tridentfb_par *par)
{
/* Goto New Mode */
- outb(0x0B, 0x3C4);
- inb(0x3C5);
+ vga_io_rseq(0x0B);
/* Unprotect registers */
- outb(NewMode1, 0x3C4);
- outb(0x80, 0x3C5);
+ vga_io_wseq(NewMode1, 0x80);
+ if (!is_oldprotect(par->chip_id))
+ vga_io_wseq(Protection, 0x92);
/* Enable MMIO */
outb(PCIReg, 0x3D4);
outb(inb(0x3D5) | 0x01, 0x3D5);
}
-static void disable_mmio(void)
+static void disable_mmio(struct tridentfb_par *par)
{
/* Goto New Mode */
- t_outb(0x0B, 0x3C4);
- t_inb(0x3C5);
+ vga_mm_rseq(par->io_virt, 0x0B);
/* Unprotect registers */
- t_outb(NewMode1, 0x3C4);
- t_outb(0x80, 0x3C5);
+ vga_mm_wseq(par->io_virt, NewMode1, 0x80);
+ if (!is_oldprotect(par->chip_id))
+ vga_mm_wseq(par->io_virt, Protection, 0x92);
/* Disable MMIO */
- t_outb(PCIReg, 0x3D4);
- t_outb(t_inb(0x3D5) & ~0x01, 0x3D5);
+ t_outb(par, PCIReg, 0x3D4);
+ t_outb(par, t_inb(par, 0x3D5) & ~0x01, 0x3D5);
}
-#define crtc_unlock() write3X4(CRTVSyncEnd, read3X4(CRTVSyncEnd) & 0x7F)
+static inline void crtc_unlock(struct tridentfb_par *par)
+{
+ write3X4(par, VGA_CRTC_V_SYNC_END,
+ read3X4(par, VGA_CRTC_V_SYNC_END) & 0x7F);
+}
/* Return flat panel's maximum x resolution */
-static int __devinit get_nativex(void)
+static int __devinit get_nativex(struct tridentfb_par *par)
{
int x, y, tmp;
if (nativex)
return nativex;
- tmp = (read3CE(VertStretch) >> 4) & 3;
+ tmp = (read3CE(par, VertStretch) >> 4) & 3;
switch (tmp) {
case 0:
}
/* Set pitch */
-static void set_lwidth(int width)
+static inline void set_lwidth(struct tridentfb_par *par, int width)
{
- write3X4(Offset, width & 0xFF);
- write3X4(AddColReg,
- (read3X4(AddColReg) & 0xCF) | ((width & 0x300) >> 4));
+ write3X4(par, VGA_CRTC_OFFSET, width & 0xFF);
+ write3X4(par, AddColReg,
+ (read3X4(par, AddColReg) & 0xCF) | ((width & 0x300) >> 4));
}
/* For resolutions smaller than FP resolution stretch */
-static void screen_stretch(void)
+static void screen_stretch(struct tridentfb_par *par)
{
- if (chip_id != CYBERBLADEXPAi1)
- write3CE(BiosReg, 0);
+ if (par->chip_id != CYBERBLADEXPAi1)
+ write3CE(par, BiosReg, 0);
else
- write3CE(BiosReg, 8);
- write3CE(VertStretch, (read3CE(VertStretch) & 0x7C) | 1);
- write3CE(HorStretch, (read3CE(HorStretch) & 0x7C) | 1);
+ write3CE(par, BiosReg, 8);
+ write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 1);
+ write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 1);
}
/* For resolutions smaller than FP resolution center */
-static void screen_center(void)
+static inline void screen_center(struct tridentfb_par *par)
{
- write3CE(VertStretch, (read3CE(VertStretch) & 0x7C) | 0x80);
- write3CE(HorStretch, (read3CE(HorStretch) & 0x7C) | 0x80);
+ write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 0x80);
+ write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 0x80);
}
/* Address of first shown pixel in display memory */
-static void set_screen_start(int base)
+static void set_screen_start(struct tridentfb_par *par, int base)
{
- write3X4(StartAddrLow, base & 0xFF);
- write3X4(StartAddrHigh, (base & 0xFF00) >> 8);
- write3X4(CRTCModuleTest,
- (read3X4(CRTCModuleTest) & 0xDF) | ((base & 0x10000) >> 11));
- write3X4(CRTHiOrd,
- (read3X4(CRTHiOrd) & 0xF8) | ((base & 0xE0000) >> 17));
+ u8 tmp;
+ write3X4(par, VGA_CRTC_START_LO, base & 0xFF);
+ write3X4(par, VGA_CRTC_START_HI, (base & 0xFF00) >> 8);
+ tmp = read3X4(par, CRTCModuleTest) & 0xDF;
+ write3X4(par, CRTCModuleTest, tmp | ((base & 0x10000) >> 11));
+ tmp = read3X4(par, CRTHiOrd) & 0xF8;
+ write3X4(par, CRTHiOrd, tmp | ((base & 0xE0000) >> 17));
}
/* Set dotclock frequency */
-static void set_vclk(unsigned long freq)
+static void set_vclk(struct tridentfb_par *par, unsigned long freq)
{
int m, n, k;
- unsigned long f, fi, d, di;
- unsigned char lo = 0, hi = 0;
+ unsigned long fi, d, di;
+ unsigned char best_m = 0, best_n = 0, best_k = 0;
+ unsigned char hi, lo;
+ unsigned char shift = !is_oldclock(par->chip_id) ? 2 : 1;
d = 20000;
- for (k = 2; k >= 0; k--)
- for (m = 0; m < 63; m++)
- for (n = 0; n < 128; n++) {
+ for (k = shift; k >= 0; k--)
+ for (m = 1; m < 32; m++) {
+ n = ((m + 2) << shift) - 8;
+ for (n = (n < 0 ? 0 : n); n < 122; n++) {
fi = ((14318l * (n + 8)) / (m + 2)) >> k;
- if ((di = abs(fi - freq)) < d) {
+ di = abs(fi - freq);
+ if (di < d || (di == d && k == best_k)) {
d = di;
- f = fi;
- lo = n;
- hi = (k << 6) | m;
+ best_n = n;
+ best_m = m;
+ best_k = k;
}
if (fi > freq)
break;
}
- if (chip3D) {
- write3C4(ClockHigh, hi);
- write3C4(ClockLow, lo);
+ }
+
+ if (is_oldclock(par->chip_id)) {
+ lo = best_n | (best_m << 7);
+ hi = (best_m >> 1) | (best_k << 4);
} else {
- outb(lo, 0x43C8);
- outb(hi, 0x43C9);
+ lo = best_n;
+ hi = best_m | (best_k << 6);
+ }
+
+ if (is3Dchip(par->chip_id)) {
+ vga_mm_wseq(par->io_virt, ClockHigh, hi);
+ vga_mm_wseq(par->io_virt, ClockLow, lo);
+ } else {
+ t_outb(par, lo, 0x43C8);
+ t_outb(par, hi, 0x43C9);
}
debug("VCLK = %X %X\n", hi, lo);
}
/* Set number of lines for flat panels*/
-static void set_number_of_lines(int lines)
+static void set_number_of_lines(struct tridentfb_par *par, int lines)
{
- int tmp = read3CE(CyberEnhance) & 0x8F;
+ int tmp = read3CE(par, CyberEnhance) & 0x8F;
if (lines > 1024)
tmp |= 0x50;
else if (lines > 768)
tmp |= 0x20;
else if (lines > 480)
tmp |= 0x10;
- write3CE(CyberEnhance, tmp);
+ write3CE(par, CyberEnhance, tmp);
}
/*
* If we see that FP is active we assume we have one.
- * Otherwise we have a CRT display.User can override.
+ * Otherwise we have a CRT display. User can override.
*/
-static unsigned int __devinit get_displaytype(void)
+static int __devinit is_flatpanel(struct tridentfb_par *par)
{
if (fp)
- return DISPLAY_FP;
- if (crt || !chipcyber)
- return DISPLAY_CRT;
- return (read3CE(FPConfig) & 0x10) ? DISPLAY_FP : DISPLAY_CRT;
+ return 1;
+ if (crt || !iscyber(par->chip_id))
+ return 0;
+ return (read3CE(par, FPConfig) & 0x10) ? 1 : 0;
}
/* Try detecting the video memory size */
-static unsigned int __devinit get_memsize(void)
+static unsigned int __devinit get_memsize(struct tridentfb_par *par)
{
unsigned char tmp, tmp2;
unsigned int k;
if (memsize)
k = memsize * Kb;
else
- switch (chip_id) {
+ switch (par->chip_id) {
case CYBER9525DVD:
k = 2560 * Kb;
break;
default:
- tmp = read3X4(SPR) & 0x0F;
+ tmp = read3X4(par, SPR) & 0x0F;
switch (tmp) {
case 0x01:
break;
case 0x0E: /* XP */
- tmp2 = read3C4(0xC1);
+ tmp2 = vga_mm_rseq(par->io_virt, 0xC1);
switch (tmp2) {
case 0x00:
k = 20 * Mb;
static int tridentfb_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
+ struct tridentfb_par *par = info->par;
int bpp = var->bits_per_pixel;
+ int line_length;
+ int ramdac = 230000; /* 230MHz for most 3D chips */
debug("enter\n");
/* check color depth */
if (bpp == 24)
bpp = var->bits_per_pixel = 32;
+ if (bpp != 8 && bpp != 16 && bpp != 32)
+ return -EINVAL;
+ if (par->chip_id == TGUI9440 && bpp == 32)
+ return -EINVAL;
/* check whether resolution fits on panel and in memory */
- if (flatpanel && nativex && var->xres > nativex)
+ if (par->flatpanel && nativex && var->xres > nativex)
+ return -EINVAL;
+ /* various resolution checks */
+ var->xres = (var->xres + 7) & ~0x7;
+ if (var->xres > var->xres_virtual)
+ var->xres_virtual = var->xres;
+ if (var->yres > var->yres_virtual)
+ var->yres_virtual = var->yres;
+ if (var->xres_virtual > 4095 || var->yres > 2048)
return -EINVAL;
- if (var->xres * var->yres_virtual * bpp / 8 > info->fix.smem_len)
+ /* prevent from position overflow for acceleration */
+ if (var->yres_virtual > 0xffff)
+ return -EINVAL;
+ line_length = var->xres_virtual * bpp / 8;
+
+ if (!is3Dchip(par->chip_id) &&
+ !(info->flags & FBINFO_HWACCEL_DISABLED)) {
+ /* acceleration requires line length to be power of 2 */
+ if (line_length <= 512)
+ var->xres_virtual = 512 * 8 / bpp;
+ else if (line_length <= 1024)
+ var->xres_virtual = 1024 * 8 / bpp;
+ else if (line_length <= 2048)
+ var->xres_virtual = 2048 * 8 / bpp;
+ else if (line_length <= 4096)
+ var->xres_virtual = 4096 * 8 / bpp;
+ else if (line_length <= 8192)
+ var->xres_virtual = 8192 * 8 / bpp;
+ else
+ return -EINVAL;
+
+ line_length = var->xres_virtual * bpp / 8;
+ }
+
+ /* datasheet specifies how to set panning only up to 4 MB */
+ if (line_length * (var->yres_virtual - var->yres) > (4 << 20))
+ var->yres_virtual = ((4 << 20) / line_length) + var->yres;
+
+ if (line_length * var->yres_virtual > info->fix.smem_len)
return -EINVAL;
switch (bpp) {
case 8:
var->red.offset = 0;
- var->green.offset = 0;
- var->blue.offset = 0;
- var->red.length = 6;
- var->green.length = 6;
- var->blue.length = 6;
+ var->red.length = 8;
+ var->green = var->red;
+ var->blue = var->red;
break;
case 16:
var->red.offset = 11;
default:
return -EINVAL;
}
+
+ if (is_xp(par->chip_id))
+ ramdac = 350000;
+
+ switch (par->chip_id) {
+ case TGUI9440:
+ ramdac = (bpp >= 16) ? 45000 : 90000;
+ break;
+ case CYBER9320:
+ case TGUI9660:
+ ramdac = 135000;
+ break;
+ case PROVIDIA9685:
+ case CYBER9388:
+ case CYBER9382:
+ case CYBER9385:
+ ramdac = 170000;
+ break;
+ }
+
+ /* The clock is doubled for 32 bpp */
+ if (bpp == 32)
+ ramdac /= 2;
+
+ if (PICOS2KHZ(var->pixclock) > ramdac)
+ return -EINVAL;
+
debug("exit\n");
return 0;
static int tridentfb_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info)
{
+ struct tridentfb_par *par = info->par;
unsigned int offset;
debug("enter\n");
- offset = (var->xoffset + (var->yoffset * var->xres))
+ offset = (var->xoffset + (var->yoffset * var->xres_virtual))
* var->bits_per_pixel / 32;
- info->var.xoffset = var->xoffset;
- info->var.yoffset = var->yoffset;
- set_screen_start(offset);
+ set_screen_start(par, offset);
debug("exit\n");
return 0;
}
-#define shadowmode_on() write3CE(CyberControl, read3CE(CyberControl) | 0x81)
-#define shadowmode_off() write3CE(CyberControl, read3CE(CyberControl) & 0x7E)
+static inline void shadowmode_on(struct tridentfb_par *par)
+{
+ write3CE(par, CyberControl, read3CE(par, CyberControl) | 0x81);
+}
+
+static inline void shadowmode_off(struct tridentfb_par *par)
+{
+ write3CE(par, CyberControl, read3CE(par, CyberControl) & 0x7E);
+}
/* Set the hardware to the requested video mode */
static int tridentfb_set_par(struct fb_info *info)
{
- struct tridentfb_par *par = (struct tridentfb_par *)(info->par);
+ struct tridentfb_par *par = info->par;
u32 htotal, hdispend, hsyncstart, hsyncend, hblankstart, hblankend;
u32 vtotal, vdispend, vsyncstart, vsyncend, vblankstart, vblankend;
struct fb_var_screeninfo *var = &info->var;
debug("enter\n");
hdispend = var->xres / 8 - 1;
hsyncstart = (var->xres + var->right_margin) / 8;
- hsyncend = var->hsync_len / 8;
- htotal =
- (var->xres + var->left_margin + var->right_margin +
- var->hsync_len) / 8 - 10;
+ hsyncend = (var->xres + var->right_margin + var->hsync_len) / 8;
+ htotal = (var->xres + var->left_margin + var->right_margin +
+ var->hsync_len) / 8 - 5;
hblankstart = hdispend + 1;
- hblankend = htotal + 5;
+ hblankend = htotal + 3;
vdispend = var->yres - 1;
vsyncstart = var->yres + var->lower_margin;
- vsyncend = var->vsync_len;
- vtotal = var->upper_margin + vsyncstart + vsyncend - 2;
- vblankstart = var->yres;
- vblankend = vtotal + 2;
+ vsyncend = vsyncstart + var->vsync_len;
+ vtotal = var->upper_margin + vsyncend - 2;
+ vblankstart = vdispend + 1;
+ vblankend = vtotal;
+
+ if (info->var.vmode & FB_VMODE_INTERLACED) {
+ vtotal /= 2;
+ vdispend /= 2;
+ vsyncstart /= 2;
+ vsyncend /= 2;
+ vblankstart /= 2;
+ vblankend /= 2;
+ }
- crtc_unlock();
- write3CE(CyberControl, 8);
+ enable_mmio(par);
+ crtc_unlock(par);
+ write3CE(par, CyberControl, 8);
+ tmp = 0xEB;
+ if (var->sync & FB_SYNC_HOR_HIGH_ACT)
+ tmp &= ~0x40;
+ if (var->sync & FB_SYNC_VERT_HIGH_ACT)
+ tmp &= ~0x80;
- if (flatpanel && var->xres < nativex) {
+ if (par->flatpanel && var->xres < nativex) {
/*
* on flat panels with native size larger
* than requested resolution decide whether
* we stretch or center
*/
- t_outb(0xEB, 0x3C2);
+ t_outb(par, tmp | 0xC0, VGA_MIS_W);
- shadowmode_on();
+ shadowmode_on(par);
if (center)
- screen_center();
+ screen_center(par);
else if (stretch)
- screen_stretch();
+ screen_stretch(par);
} else {
- t_outb(0x2B, 0x3C2);
- write3CE(CyberControl, 8);
+ t_outb(par, tmp, VGA_MIS_W);
+ write3CE(par, CyberControl, 8);
}
/* vertical timing values */
- write3X4(CRTVTotal, vtotal & 0xFF);
- write3X4(CRTVDispEnd, vdispend & 0xFF);
- write3X4(CRTVSyncStart, vsyncstart & 0xFF);
- write3X4(CRTVSyncEnd, (vsyncend & 0x0F));
- write3X4(CRTVBlankStart, vblankstart & 0xFF);
- write3X4(CRTVBlankEnd, 0 /* p->vblankend & 0xFF */ );
+ write3X4(par, VGA_CRTC_V_TOTAL, vtotal & 0xFF);
+ write3X4(par, VGA_CRTC_V_DISP_END, vdispend & 0xFF);
+ write3X4(par, VGA_CRTC_V_SYNC_START, vsyncstart & 0xFF);
+ write3X4(par, VGA_CRTC_V_SYNC_END, (vsyncend & 0x0F));
+ write3X4(par, VGA_CRTC_V_BLANK_START, vblankstart & 0xFF);
+ write3X4(par, VGA_CRTC_V_BLANK_END, vblankend & 0xFF);
/* horizontal timing values */
- write3X4(CRTHTotal, htotal & 0xFF);
- write3X4(CRTHDispEnd, hdispend & 0xFF);
- write3X4(CRTHSyncStart, hsyncstart & 0xFF);
- write3X4(CRTHSyncEnd, (hsyncend & 0x1F) | ((hblankend & 0x20) << 2));
- write3X4(CRTHBlankStart, hblankstart & 0xFF);
- write3X4(CRTHBlankEnd, 0 /* (p->hblankend & 0x1F) */ );
+ write3X4(par, VGA_CRTC_H_TOTAL, htotal & 0xFF);
+ write3X4(par, VGA_CRTC_H_DISP, hdispend & 0xFF);
+ write3X4(par, VGA_CRTC_H_SYNC_START, hsyncstart & 0xFF);
+ write3X4(par, VGA_CRTC_H_SYNC_END,
+ (hsyncend & 0x1F) | ((hblankend & 0x20) << 2));
+ write3X4(par, VGA_CRTC_H_BLANK_START, hblankstart & 0xFF);
+ write3X4(par, VGA_CRTC_H_BLANK_END, hblankend & 0x1F);
/* higher bits of vertical timing values */
tmp = 0x10;
if (vtotal & 0x200) tmp |= 0x20;
if (vdispend & 0x200) tmp |= 0x40;
if (vsyncstart & 0x200) tmp |= 0x80;
- write3X4(CRTOverflow, tmp);
+ write3X4(par, VGA_CRTC_OVERFLOW, tmp);
- tmp = read3X4(CRTHiOrd) | 0x08; /* line compare bit 10 */
+ tmp = read3X4(par, CRTHiOrd) & 0x07;
+ tmp |= 0x08; /* line compare bit 10 */
if (vtotal & 0x400) tmp |= 0x80;
if (vblankstart & 0x400) tmp |= 0x40;
if (vsyncstart & 0x400) tmp |= 0x20;
if (vdispend & 0x400) tmp |= 0x10;
- write3X4(CRTHiOrd, tmp);
+ write3X4(par, CRTHiOrd, tmp);
- tmp = 0;
- if (htotal & 0x800) tmp |= 0x800 >> 11;
- if (hblankstart & 0x800) tmp |= 0x800 >> 7;
- write3X4(HorizOverflow, tmp);
+ tmp = (htotal >> 8) & 0x01;
+ tmp |= (hdispend >> 7) & 0x02;
+ tmp |= (hsyncstart >> 5) & 0x08;
+ tmp |= (hblankstart >> 4) & 0x10;
+ write3X4(par, HorizOverflow, tmp);
tmp = 0x40;
if (vblankstart & 0x200) tmp |= 0x20;
//FIXME if (info->var.vmode & FB_VMODE_DOUBLE) tmp |= 0x80; /* double scan for 200 line modes */
- write3X4(CRTMaxScanLine, tmp);
+ write3X4(par, VGA_CRTC_MAX_SCAN, tmp);
- write3X4(CRTLineCompare, 0xFF);
- write3X4(CRTPRowScan, 0);
- write3X4(CRTModeControl, 0xC3);
+ write3X4(par, VGA_CRTC_LINE_COMPARE, 0xFF);
+ write3X4(par, VGA_CRTC_PRESET_ROW, 0);
+ write3X4(par, VGA_CRTC_MODE, 0xC3);
- write3X4(LinearAddReg, 0x20); /* enable linear addressing */
+ write3X4(par, LinearAddReg, 0x20); /* enable linear addressing */
tmp = (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84 : 0x80;
- write3X4(CRTCModuleTest, tmp); /* enable access extended memory */
-
- write3X4(GraphEngReg, 0x80); /* enable GE for text acceleration */
+ /* enable access extended memory */
+ write3X4(par, CRTCModuleTest, tmp);
+ tmp = read3CE(par, MiscIntContReg) & ~0x4;
+ if (info->var.vmode & FB_VMODE_INTERLACED)
+ tmp |= 0x4;
+ write3CE(par, MiscIntContReg, tmp);
-#ifdef CONFIG_FB_TRIDENT_ACCEL
- acc->init_accel(info->var.xres, bpp);
-#endif
+ /* enable GE for text acceleration */
+ write3X4(par, GraphEngReg, 0x80);
switch (bpp) {
case 8:
break;
}
- write3X4(PixelBusReg, tmp);
+ write3X4(par, PixelBusReg, tmp);
- tmp = 0x10;
- if (chipcyber)
+ tmp = read3X4(par, DRAMControl);
+ if (!is_oldprotect(par->chip_id))
+ tmp |= 0x10;
+ if (iscyber(par->chip_id))
tmp |= 0x20;
- write3X4(DRAMControl, tmp); /* both IO, linear enable */
-
- write3X4(InterfaceSel, read3X4(InterfaceSel) | 0x40);
- write3X4(Performance, 0x92);
- write3X4(PCIReg, 0x07); /* MMIO & PCI read and write burst enable */
+ write3X4(par, DRAMControl, tmp); /* both IO, linear enable */
+
+ write3X4(par, InterfaceSel, read3X4(par, InterfaceSel) | 0x40);
+ if (!is_xp(par->chip_id))
+ write3X4(par, Performance, read3X4(par, Performance) | 0x10);
+ /* MMIO & PCI read and write burst enable */
+ if (par->chip_id != TGUI9440 && par->chip_id != IMAGE975)
+ write3X4(par, PCIReg, read3X4(par, PCIReg) | 0x06);
+
+ vga_mm_wseq(par->io_virt, 0, 3);
+ vga_mm_wseq(par->io_virt, 1, 1); /* set char clock 8 dots wide */
+ /* enable 4 maps because needed in chain4 mode */
+ vga_mm_wseq(par->io_virt, 2, 0x0F);
+ vga_mm_wseq(par->io_virt, 3, 0);
+ vga_mm_wseq(par->io_virt, 4, 0x0E); /* memory mode enable bitmaps ?? */
/* convert from picoseconds to kHz */
vclk = PICOS2KHZ(info->var.pixclock);
- if (bpp == 32)
+
+ /* divide clock by 2 if 32bpp chain4 mode display and CPU path */
+ tmp = read3CE(par, MiscExtFunc) & 0xF0;
+ if (bpp == 32 || (par->chip_id == TGUI9440 && bpp == 16)) {
+ tmp |= 8;
vclk *= 2;
- set_vclk(vclk);
-
- write3C4(0, 3);
- write3C4(1, 1); /* set char clock 8 dots wide */
- write3C4(2, 0x0F); /* enable 4 maps because needed in chain4 mode */
- write3C4(3, 0);
- write3C4(4, 0x0E); /* memory mode enable bitmaps ?? */
-
- write3CE(MiscExtFunc, (bpp == 32) ? 0x1A : 0x12); /* divide clock by 2 if 32bpp */
- /* chain4 mode display and CPU path */
- write3CE(0x5, 0x40); /* no CGA compat, allow 256 col */
- write3CE(0x6, 0x05); /* graphics mode */
- write3CE(0x7, 0x0F); /* planes? */
-
- if (chip_id == CYBERBLADEXPAi1) {
- /* This fixes snow-effect in 32 bpp */
- write3X4(CRTHSyncStart, 0x84);
}
+ set_vclk(par, vclk);
+ write3CE(par, MiscExtFunc, tmp | 0x12);
+ write3CE(par, 0x5, 0x40); /* no CGA compat, allow 256 col */
+ write3CE(par, 0x6, 0x05); /* graphics mode */
+ write3CE(par, 0x7, 0x0F); /* planes? */
- writeAttr(0x10, 0x41); /* graphics mode and support 256 color modes */
- writeAttr(0x12, 0x0F); /* planes */
- writeAttr(0x13, 0); /* horizontal pel panning */
+ /* graphics mode and support 256 color modes */
+ writeAttr(par, 0x10, 0x41);
+ writeAttr(par, 0x12, 0x0F); /* planes */
+ writeAttr(par, 0x13, 0); /* horizontal pel panning */
/* colors */
for (tmp = 0; tmp < 0x10; tmp++)
- writeAttr(tmp, tmp);
- readb(par->io_virt + CRT + 0x0A); /* flip-flop to index */
- t_outb(0x20, 0x3C0); /* enable attr */
+ writeAttr(par, tmp, tmp);
+ fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */
+ t_outb(par, 0x20, VGA_ATT_W); /* enable attr */
switch (bpp) {
case 8:
tmp = 0;
break;
- case 15:
- tmp = 0x10;
- break;
case 16:
tmp = 0x30;
break;
break;
}
- t_inb(0x3C8);
- t_inb(0x3C6);
- t_inb(0x3C6);
- t_inb(0x3C6);
- t_inb(0x3C6);
- t_outb(tmp, 0x3C6);
- t_inb(0x3C8);
-
- if (flatpanel)
- set_number_of_lines(info->var.yres);
- set_lwidth(info->var.xres * bpp / (4 * 16));
+ t_inb(par, VGA_PEL_IW);
+ t_inb(par, VGA_PEL_MSK);
+ t_inb(par, VGA_PEL_MSK);
+ t_inb(par, VGA_PEL_MSK);
+ t_inb(par, VGA_PEL_MSK);
+ t_outb(par, tmp, VGA_PEL_MSK);
+ t_inb(par, VGA_PEL_IW);
+
+ if (par->flatpanel)
+ set_number_of_lines(par, info->var.yres);
+ info->fix.line_length = info->var.xres_virtual * bpp / 8;
+ set_lwidth(par, info->fix.line_length / 8);
+
+ if (!(info->flags & FBINFO_HWACCEL_DISABLED))
+ par->init_accel(par, info->var.xres_virtual, bpp);
+
info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
- info->fix.line_length = info->var.xres * (bpp >> 3);
info->cmap.len = (bpp == 8) ? 256 : 16;
debug("exit\n");
return 0;
struct fb_info *info)
{
int bpp = info->var.bits_per_pixel;
+ struct tridentfb_par *par = info->par;
if (regno >= info->cmap.len)
return 1;
if (bpp == 8) {
- t_outb(0xFF, 0x3C6);
- t_outb(regno, 0x3C8);
+ t_outb(par, 0xFF, VGA_PEL_MSK);
+ t_outb(par, regno, VGA_PEL_IW);
- t_outb(red >> 10, 0x3C9);
- t_outb(green >> 10, 0x3C9);
- t_outb(blue >> 10, 0x3C9);
+ t_outb(par, red >> 10, VGA_PEL_D);
+ t_outb(par, green >> 10, VGA_PEL_D);
+ t_outb(par, blue >> 10, VGA_PEL_D);
} else if (regno < 16) {
if (bpp == 16) { /* RGB 565 */
col |= col << 16;
((u32 *)(info->pseudo_palette))[regno] = col;
} else if (bpp == 32) /* ARGB 8888 */
- ((u32*)info->pseudo_palette)[regno] =
+ ((u32 *)info->pseudo_palette)[regno] =
((transp & 0xFF00) << 16) |
((red & 0xFF00) << 8) |
((green & 0xFF00)) |
((blue & 0xFF00) >> 8);
}
-/* debug("exit\n"); */
return 0;
}
-/* Try blanking the screen.For flat panels it does nothing */
+/* Try blanking the screen. For flat panels it does nothing */
static int tridentfb_blank(int blank_mode, struct fb_info *info)
{
unsigned char PMCont, DPMSCont;
+ struct tridentfb_par *par = info->par;
debug("enter\n");
- if (flatpanel)
+ if (par->flatpanel)
return 0;
- t_outb(0x04, 0x83C8); /* Read DPMS Control */
- PMCont = t_inb(0x83C6) & 0xFC;
- DPMSCont = read3CE(PowerStatus) & 0xFC;
+ t_outb(par, 0x04, 0x83C8); /* Read DPMS Control */
+ PMCont = t_inb(par, 0x83C6) & 0xFC;
+ DPMSCont = read3CE(par, PowerStatus) & 0xFC;
switch (blank_mode) {
case FB_BLANK_UNBLANK:
/* Screen: On, HSync: On, VSync: On */
break;
}
- write3CE(PowerStatus, DPMSCont);
- t_outb(4, 0x83C8);
- t_outb(PMCont, 0x83C6);
+ write3CE(par, PowerStatus, DPMSCont);
+ t_outb(par, 4, 0x83C8);
+ t_outb(par, PMCont, 0x83C6);
debug("exit\n");
.fb_set_par = tridentfb_set_par,
.fb_fillrect = tridentfb_fillrect,
.fb_copyarea = tridentfb_copyarea,
- .fb_imageblit = cfb_imageblit,
+ .fb_imageblit = tridentfb_imageblit,
+#ifdef CONFIG_FB_TRIDENT_ACCEL
+ .fb_sync = tridentfb_sync,
+#endif
};
-static int __devinit trident_pci_probe(struct pci_dev * dev,
- const struct pci_device_id * id)
+static int __devinit trident_pci_probe(struct pci_dev *dev,
+ const struct pci_device_id *id)
{
int err;
unsigned char revision;
+ struct fb_info *info;
+ struct tridentfb_par *default_par;
+ int chip3D;
+ int chip_id;
err = pci_enable_device(dev);
if (err)
return err;
- chip_id = id->device;
+ info = framebuffer_alloc(sizeof(struct tridentfb_par), &dev->dev);
+ if (!info)
+ return -ENOMEM;
+ default_par = info->par;
- if (chip_id == CYBERBLADEi1)
- output("*** Please do use cyblafb, Cyberblade/i1 support "
- "will soon be removed from tridentfb!\n");
+ chip_id = id->device;
+#ifndef CONFIG_FB_TRIDENT_ACCEL
+ noaccel = 1;
+#endif
/* If PCI id is 0x9660 then further detect chip type */
if (chip_id == TGUI9660) {
- outb(RevisionID, 0x3C4);
- revision = inb(0x3C5);
+ revision = vga_io_rseq(RevisionID);
switch (revision) {
+ case 0x21:
+ chip_id = PROVIDIA9685;
+ break;
case 0x22:
case 0x23:
chip_id = CYBER9397;
}
chip3D = is3Dchip(chip_id);
- chipcyber = iscyber(chip_id);
if (is_xp(chip_id)) {
- acc = &accel_xp;
+ default_par->init_accel = xp_init_accel;
+ default_par->wait_engine = xp_wait_engine;
+ default_par->fill_rect = xp_fill_rect;
+ default_par->copy_rect = xp_copy_rect;
+ tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADEXP;
} else if (is_blade(chip_id)) {
- acc = &accel_blade;
- } else {
- acc = &accel_image;
+ default_par->init_accel = blade_init_accel;
+ default_par->wait_engine = blade_wait_engine;
+ default_par->fill_rect = blade_fill_rect;
+ default_par->copy_rect = blade_copy_rect;
+ default_par->image_blit = blade_image_blit;
+ tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADE3D;
+ } else if (chip3D) { /* 3DImage family left */
+ default_par->init_accel = image_init_accel;
+ default_par->wait_engine = image_wait_engine;
+ default_par->fill_rect = image_fill_rect;
+ default_par->copy_rect = image_copy_rect;
+ tridentfb_fix.accel = FB_ACCEL_TRIDENT_3DIMAGE;
+ } else { /* TGUI 9440/96XX family */
+ default_par->init_accel = tgui_init_accel;
+ default_par->wait_engine = xp_wait_engine;
+ default_par->fill_rect = tgui_fill_rect;
+ default_par->copy_rect = tgui_copy_rect;
+ tridentfb_fix.accel = FB_ACCEL_TRIDENT_TGUI;
}
- /* acceleration is on by default for 3D chips */
- defaultaccel = chip3D && !noaccel;
-
- fb_info.par = &default_par;
+ default_par->chip_id = chip_id;
/* setup MMIO region */
tridentfb_fix.mmio_start = pci_resource_start(dev, 1);
- tridentfb_fix.mmio_len = chip3D ? 0x20000 : 0x10000;
+ tridentfb_fix.mmio_len = pci_resource_len(dev, 1);
- if (!request_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len, "tridentfb")) {
+ if (!request_mem_region(tridentfb_fix.mmio_start,
+ tridentfb_fix.mmio_len, "tridentfb")) {
debug("request_region failed!\n");
+ framebuffer_release(info);
return -1;
}
- default_par.io_virt = ioremap_nocache(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
+ default_par->io_virt = ioremap_nocache(tridentfb_fix.mmio_start,
+ tridentfb_fix.mmio_len);
- if (!default_par.io_virt) {
+ if (!default_par->io_virt) {
debug("ioremap failed\n");
err = -1;
goto out_unmap1;
}
- enable_mmio();
+ enable_mmio(default_par);
/* setup framebuffer memory */
tridentfb_fix.smem_start = pci_resource_start(dev, 0);
- tridentfb_fix.smem_len = get_memsize();
+ tridentfb_fix.smem_len = get_memsize(default_par);
- if (!request_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len, "tridentfb")) {
+ if (!request_mem_region(tridentfb_fix.smem_start,
+ tridentfb_fix.smem_len, "tridentfb")) {
debug("request_mem_region failed!\n");
- disable_mmio();
+ disable_mmio(info->par);
err = -1;
goto out_unmap1;
}
- fb_info.screen_base = ioremap_nocache(tridentfb_fix.smem_start,
- tridentfb_fix.smem_len);
+ info->screen_base = ioremap_nocache(tridentfb_fix.smem_start,
+ tridentfb_fix.smem_len);
- if (!fb_info.screen_base) {
+ if (!info->screen_base) {
debug("ioremap failed\n");
err = -1;
goto out_unmap2;
}
- output("%s board found\n", pci_name(dev));
- displaytype = get_displaytype();
+ default_par->flatpanel = is_flatpanel(default_par);
- if (flatpanel)
- nativex = get_nativex();
+ if (default_par->flatpanel)
+ nativex = get_nativex(default_par);
- fb_info.fix = tridentfb_fix;
- fb_info.fbops = &tridentfb_ops;
+ info->fix = tridentfb_fix;
+ info->fbops = &tridentfb_ops;
+ info->pseudo_palette = default_par->pseudo_pal;
+ info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
+ if (!noaccel && default_par->init_accel) {
+ info->flags &= ~FBINFO_HWACCEL_DISABLED;
+ info->flags |= FBINFO_HWACCEL_COPYAREA;
+ info->flags |= FBINFO_HWACCEL_FILLRECT;
+ } else
+ info->flags |= FBINFO_HWACCEL_DISABLED;
- fb_info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
-#ifdef CONFIG_FB_TRIDENT_ACCEL
- fb_info.flags |= FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT;
-#endif
- fb_info.pseudo_palette = pseudo_pal;
+ info->pixmap.addr = kmalloc(4096, GFP_KERNEL);
+ if (!info->pixmap.addr) {
+ err = -ENOMEM;
+ goto out_unmap2;
+ }
+
+ info->pixmap.size = 4096;
+ info->pixmap.buf_align = 4;
+ info->pixmap.scan_align = 1;
+ info->pixmap.access_align = 32;
+ info->pixmap.flags = FB_PIXMAP_SYSTEM;
- if (!fb_find_mode(&default_var, &fb_info,
+ if (default_par->image_blit) {
+ info->flags |= FBINFO_HWACCEL_IMAGEBLIT;
+ info->pixmap.scan_align = 4;
+ }
+
+ if (noaccel) {
+ printk(KERN_DEBUG "disabling acceleration\n");
+ info->flags |= FBINFO_HWACCEL_DISABLED;
+ info->pixmap.scan_align = 1;
+ }
+
+ if (!fb_find_mode(&info->var, info,
mode_option, NULL, 0, NULL, bpp)) {
err = -EINVAL;
goto out_unmap2;
}
- err = fb_alloc_cmap(&fb_info.cmap, 256, 0);
+ err = fb_alloc_cmap(&info->cmap, 256, 0);
if (err < 0)
goto out_unmap2;
- if (defaultaccel && acc)
- default_var.accel_flags |= FB_ACCELF_TEXT;
- else
- default_var.accel_flags &= ~FB_ACCELF_TEXT;
- default_var.activate |= FB_ACTIVATE_NOW;
- fb_info.var = default_var;
- fb_info.device = &dev->dev;
- if (register_framebuffer(&fb_info) < 0) {
- printk(KERN_ERR "tridentfb: could not register Trident framebuffer\n");
- fb_dealloc_cmap(&fb_info.cmap);
+ info->var.activate |= FB_ACTIVATE_NOW;
+ info->device = &dev->dev;
+ if (register_framebuffer(info) < 0) {
+ printk(KERN_ERR "tridentfb: could not register framebuffer\n");
+ fb_dealloc_cmap(&info->cmap);
err = -EINVAL;
goto out_unmap2;
}
output("fb%d: %s frame buffer device %dx%d-%dbpp\n",
- fb_info.node, fb_info.fix.id, default_var.xres,
- default_var.yres, default_var.bits_per_pixel);
+ info->node, info->fix.id, info->var.xres,
+ info->var.yres, info->var.bits_per_pixel);
+
+ pci_set_drvdata(dev, info);
return 0;
out_unmap2:
- if (fb_info.screen_base)
- iounmap(fb_info.screen_base);
+ kfree(info->pixmap.addr);
+ if (info->screen_base)
+ iounmap(info->screen_base);
release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
- disable_mmio();
+ disable_mmio(info->par);
out_unmap1:
- if (default_par.io_virt)
- iounmap(default_par.io_virt);
+ if (default_par->io_virt)
+ iounmap(default_par->io_virt);
release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
+ framebuffer_release(info);
return err;
}
static void __devexit trident_pci_remove(struct pci_dev *dev)
{
- struct tridentfb_par *par = (struct tridentfb_par*)fb_info.par;
- unregister_framebuffer(&fb_info);
+ struct fb_info *info = pci_get_drvdata(dev);
+ struct tridentfb_par *par = info->par;
+
+ unregister_framebuffer(info);
iounmap(par->io_virt);
- iounmap(fb_info.screen_base);
+ iounmap(info->screen_base);
release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
+ pci_set_drvdata(dev, NULL);
+ kfree(info->pixmap.addr);
+ framebuffer_release(info);
}
/* List of boards that we are trying to support */
{PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBERBLADEE4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ {PCI_VENDOR_ID_TRIDENT, TGUI9440, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, TGUI9660, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, IMAGE975, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, IMAGE985, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
if (!strncmp(opt, "noaccel", 7))
noaccel = 1;
else if (!strncmp(opt, "fp", 2))
- displaytype = DISPLAY_FP;
+ fp = 1;
else if (!strncmp(opt, "crt", 3))
- displaytype = DISPLAY_CRT;
+ fp = 0;
else if (!strncmp(opt, "bpp=", 4))
bpp = simple_strtoul(opt + 4, NULL, 0);
else if (!strncmp(opt, "center", 6))
return -ENODEV;
tridentfb_setup(option);
#endif
- output("Trident framebuffer %s initializing\n", VERSION);
return pci_register_driver(&tridentfb_pci_driver);
}
module_param(maxvf, ushort, 0);
MODULE_PARM_DESC(maxvf,
"Maximum vertical frequency [Hz], overrides EDID data");
-module_param_named(mode, mode_option, charp, 0);
-MODULE_PARM_DESC(mode,
+module_param(mode_option, charp, 0);
+MODULE_PARM_DESC(mode_option,
"Specify initial video mode as \"<xres>x<yres>[-<bpp>][@<refresh>]\"");
module_param(vbemode, ushort, 0);
MODULE_PARM_DESC(vbemode,
}
#ifndef MODULE
+/*
+ * The virtual framebuffer driver is only enabled if explicitly
+ * requested by passing 'video=vfb:' (or any actual options).
+ */
static int __init vfb_setup(char *options)
{
char *this_opt;
+ vfb_enable = 0;
+
+ if (!options)
+ return 1;
+
vfb_enable = 1;
- if (!options || !*options)
+ if (!*options)
return 1;
while ((this_opt = strsep(&options, ",")) != NULL) {
if (!*this_opt)
continue;
- if (!strncmp(this_opt, "disable", 7))
+ /* Test disable for backwards compatibility */
+ if (!strcmp(this_opt, "disable"))
vfb_enable = 0;
}
return 1;
#include <asm/io.h>
#include <video/vga.h>
-#define GRAPHICS_ADDR_REG VGA_GFX_I /* Graphics address register. */
-#define GRAPHICS_DATA_REG VGA_GFX_D /* Graphics data register. */
-
-#define SET_RESET_INDEX VGA_GFX_SR_VALUE /* Set/Reset Register index. */
-#define ENABLE_SET_RESET_INDEX VGA_GFX_SR_ENABLE /* Enable Set/Reset Register index. */
-#define DATA_ROTATE_INDEX VGA_GFX_DATA_ROTATE /* Data Rotate Register index. */
-#define GRAPHICS_MODE_INDEX VGA_GFX_MODE /* Graphics Mode Register index. */
-#define BIT_MASK_INDEX VGA_GFX_BIT_MASK /* Bit Mask Register index. */
-
-#define dac_reg (VGA_PEL_IW)
-#define dac_val (VGA_PEL_D)
-
#define VGA_FB_PHYS 0xA0000
#define VGA_FB_PHYS_LEN 65536
.visual = FB_VISUAL_PSEUDOCOLOR,
.xpanstep = 8,
.ypanstep = 1,
- .line_length = 640/8,
+ .line_length = 640 / 8,
.accel = FB_ACCEL_NONE
};
{
int oldmode;
- vga_io_w(GRAPHICS_ADDR_REG, GRAPHICS_MODE_INDEX);
- oldmode = vga_io_r(GRAPHICS_DATA_REG);
- vga_io_w(GRAPHICS_DATA_REG, mode);
+ oldmode = vga_io_rgfx(VGA_GFX_MODE);
+ vga_io_w(VGA_GFX_D, mode);
return oldmode;
}
/* Select the Bit Mask Register and return its value. */
static inline int selectmask(void)
{
- return vga_io_rgfx(BIT_MASK_INDEX);
+ return vga_io_rgfx(VGA_GFX_BIT_MASK);
}
/* Set the value of the Bit Mask Register. It must already have been
selected with selectmask(). */
static inline void setmask(int mask)
{
- vga_io_w(GRAPHICS_DATA_REG, mask);
+ vga_io_w(VGA_GFX_D, mask);
}
/* Set the Data Rotate Register and return its old value.
{
int oldop;
- vga_io_w(GRAPHICS_ADDR_REG, DATA_ROTATE_INDEX);
- oldop = vga_io_r(GRAPHICS_DATA_REG);
- vga_io_w(GRAPHICS_DATA_REG, op);
+ oldop = vga_io_rgfx(VGA_GFX_DATA_ROTATE);
+ vga_io_w(VGA_GFX_D, op);
return oldop;
}
{
int oldsr;
- vga_io_w(GRAPHICS_ADDR_REG, ENABLE_SET_RESET_INDEX);
- oldsr = vga_io_r(GRAPHICS_DATA_REG);
- vga_io_w(GRAPHICS_DATA_REG, sr);
+ oldsr = vga_io_rgfx(VGA_GFX_SR_ENABLE);
+ vga_io_w(VGA_GFX_D, sr);
return oldsr;
}
{
int oldcolor;
- vga_io_w(GRAPHICS_ADDR_REG, SET_RESET_INDEX);
- oldcolor = vga_io_r(GRAPHICS_DATA_REG);
- vga_io_w(GRAPHICS_DATA_REG, color);
+ oldcolor = vga_io_rgfx(VGA_GFX_SR_VALUE);
+ vga_io_w(VGA_GFX_D, color);
return oldcolor;
}
/* Return the value in the Graphics Address Register. */
static inline int getindex(void)
{
- return vga_io_r(GRAPHICS_ADDR_REG);
+ return vga_io_r(VGA_GFX_I);
}
/* Set the value in the Graphics Address Register. */
static inline void setindex(int index)
{
- vga_io_w(GRAPHICS_ADDR_REG, index);
+ vga_io_w(VGA_GFX_I, index);
}
static void vga16fb_pan_var(struct fb_info *info,
static void vga16_setpalette(int regno, unsigned red, unsigned green, unsigned blue)
{
- outb(regno, dac_reg);
- outb(red >> 10, dac_val);
- outb(green >> 10, dac_val);
- outb(blue >> 10, dac_val);
+ outb(regno, VGA_PEL_IW);
+ outb(red >> 10, VGA_PEL_D);
+ outb(green >> 10, VGA_PEL_D);
+ outb(blue >> 10, VGA_PEL_D);
}
static int vga16fb_setcolreg(unsigned regno, unsigned red, unsigned green,
blanking code was originally by Huang shi chao, and modified by
Christoph Rimek (chrimek@toppoint.de) and todd j. derr
(tjd@barefoot.org) for Linux. */
-#define attrib_port VGA_ATC_IW
-#define seq_port_reg VGA_SEQ_I
-#define seq_port_val VGA_SEQ_D
-#define gr_port_reg VGA_GFX_I
-#define gr_port_val VGA_GFX_D
-#define video_misc_rd VGA_MIS_R
-#define video_misc_wr VGA_MIS_W
-#define vga_video_port_reg VGA_CRT_IC
-#define vga_video_port_val VGA_CRT_DC
static void vga_vesa_blank(struct vga16fb_par *par, int mode)
{
- unsigned char SeqCtrlIndex;
- unsigned char CrtCtrlIndex;
+ unsigned char SeqCtrlIndex = vga_io_r(VGA_SEQ_I);
+ unsigned char CrtCtrlIndex = vga_io_r(VGA_CRT_IC);
- //cli();
- SeqCtrlIndex = vga_io_r(seq_port_reg);
- CrtCtrlIndex = vga_io_r(vga_video_port_reg);
-
/* save original values of VGA controller registers */
if(!par->vesa_blanked) {
- par->vga_state.CrtMiscIO = vga_io_r(video_misc_rd);
+ par->vga_state.CrtMiscIO = vga_io_r(VGA_MIS_R);
//sti();
par->vga_state.HorizontalTotal = vga_io_rcrt(0x00); /* HorizontalTotal */
/* assure that video is enabled */
/* "0x20" is VIDEO_ENABLE_bit in register 01 of sequencer */
- //cli();
vga_io_wseq(0x01, par->vga_state.ClockingMode | 0x20);
/* test for vertical retrace in process.... */
if ((par->vga_state.CrtMiscIO & 0x80) == 0x80)
- vga_io_w(video_misc_wr, par->vga_state.CrtMiscIO & 0xef);
+ vga_io_w(VGA_MIS_W, par->vga_state.CrtMiscIO & 0xef);
/*
* Set <End of vertical retrace> to minimum (0) and
* Result: turn off vertical sync (VSync) pulse.
*/
if (mode & FB_BLANK_VSYNC_SUSPEND) {
- outb_p(0x10,vga_video_port_reg); /* StartVertRetrace */
- outb_p(0xff,vga_video_port_val); /* maximum value */
- outb_p(0x11,vga_video_port_reg); /* EndVertRetrace */
- outb_p(0x40,vga_video_port_val); /* minimum (bits 0..3) */
- outb_p(0x07,vga_video_port_reg); /* Overflow */
- outb_p(par->vga_state.Overflow | 0x84,vga_video_port_val); /* bits 9,10 of vert. retrace */
+ vga_io_wcrt(VGA_CRTC_V_SYNC_START, 0xff);
+ vga_io_wcrt(VGA_CRTC_V_SYNC_END, 0x40);
+ /* bits 9,10 of vert. retrace */
+ vga_io_wcrt(VGA_CRTC_OVERFLOW, par->vga_state.Overflow | 0x84);
}
if (mode & FB_BLANK_HSYNC_SUSPEND) {
* <Start of horizontal Retrace> to maximum
* Result: turn off horizontal sync (HSync) pulse.
*/
- outb_p(0x04,vga_video_port_reg); /* StartHorizRetrace */
- outb_p(0xff,vga_video_port_val); /* maximum */
- outb_p(0x05,vga_video_port_reg); /* EndHorizRetrace */
- outb_p(0x00,vga_video_port_val); /* minimum (0) */
+ vga_io_wcrt(VGA_CRTC_H_SYNC_START, 0xff);
+ vga_io_wcrt(VGA_CRTC_H_SYNC_END, 0x00);
}
/* restore both index registers */
- outb_p(SeqCtrlIndex,seq_port_reg);
- outb_p(CrtCtrlIndex,vga_video_port_reg);
- //sti();
+ outb_p(SeqCtrlIndex, VGA_SEQ_I);
+ outb_p(CrtCtrlIndex, VGA_CRT_IC);
}
static void vga_vesa_unblank(struct vga16fb_par *par)
{
- unsigned char SeqCtrlIndex;
- unsigned char CrtCtrlIndex;
+ unsigned char SeqCtrlIndex = vga_io_r(VGA_SEQ_I);
+ unsigned char CrtCtrlIndex = vga_io_r(VGA_CRT_IC);
- //cli();
- SeqCtrlIndex = vga_io_r(seq_port_reg);
- CrtCtrlIndex = vga_io_r(vga_video_port_reg);
-
/* restore original values of VGA controller registers */
- vga_io_w(video_misc_wr, par->vga_state.CrtMiscIO);
+ vga_io_w(VGA_MIS_W, par->vga_state.CrtMiscIO);
/* HorizontalTotal */
vga_io_wcrt(0x00, par->vga_state.HorizontalTotal);
vga_io_wseq(0x01, par->vga_state.ClockingMode);
/* restore index/control registers */
- vga_io_w(seq_port_reg, SeqCtrlIndex);
- vga_io_w(vga_video_port_reg, CrtCtrlIndex);
- //sti();
+ vga_io_w(VGA_SEQ_I, SeqCtrlIndex);
+ vga_io_w(VGA_CRT_IC, CrtCtrlIndex);
}
static void vga_pal_blank(void)
int i;
for (i=0; i<16; i++) {
- outb_p (i, dac_reg) ;
- outb_p (0, dac_val) ;
- outb_p (0, dac_val) ;
- outb_p (0, dac_val) ;
+ outb_p(i, VGA_PEL_IW);
+ outb_p(0, VGA_PEL_D);
+ outb_p(0, VGA_PEL_D);
+ outb_p(0, VGA_PEL_D);
}
}
width = x2 - dx;
height = y2 - dy;
+ if (sx + dx < old_dx || sy + dy < old_dy)
+ return;
+
/* update sx1,sy1 */
sx += (dx - old_dx);
sy += (dy - old_dy);
/* the source must be completely inside the virtual screen */
- if (sx < 0 || sy < 0 || (sx + width) > vxres || (sy + height) > vyres)
+ if (sx + width > vxres || sy + height > vyres)
return;
switch (info->fix.type) {
platform_driver_unregister(&vga16fb_driver);
}
+MODULE_DESCRIPTION("Legacy VGA framebuffer device driver");
MODULE_LICENSE("GPL");
module_init(vga16fb_init);
module_exit(vga16fb_exit);
machines. The watchdog timeout period is normally one minute but
can be changed with a boot-time parameter.
-# V850 Architecture
-
# XTENSA Architecture
#
# SPARC64 Architecture
-# V850 Architecture
-
# XTENSA Architecture
# Architecture Independant
#include <linux/zorro.h>
#include <linux/stat.h>
#include <linux/string.h>
-#include <linux/fs.h>
#include "zorro.h"
* of the file
*
* @name: [in] name of the "class" of the new file
- * @fops [in] file operations for the new file
- * @priv [in] private data for the new file (will be file's private_data)
+ * @fops: [in] file operations for the new file
+ * @priv: [in] private data for the new file (will be file's private_data)
+ * @flags: [in] flags
*
* Creates a new file by hooking it on a single inode. This is useful for files
* that do not need to have a full-fledged inode in order to operate correctly.
* setup. Returns new descriptor or -error.
*/
int anon_inode_getfd(const char *name, const struct file_operations *fops,
- void *priv)
+ void *priv, int flags)
{
struct qstr this;
struct dentry *dentry;
if (IS_ERR(anon_inode_inode))
return -ENODEV;
- error = get_unused_fd();
+ error = get_unused_fd_flags(flags);
if (error < 0)
return error;
fd = error;
file->f_mapping = anon_inode_inode->i_mapping;
file->f_pos = 0;
- file->f_flags = O_RDWR;
+ file->f_flags = O_RDWR | (flags & O_NONBLOCK);
file->f_version = 0;
file->private_data = priv;
int flags;
- struct list_head rehash;
+ struct completion expire_complete;
+
+ struct list_head active;
+ struct list_head expiring;
struct autofs_sb_info *sbi;
unsigned long last_used;
};
#define AUTOFS_INF_EXPIRING (1<<0) /* dentry is in the process of expiring */
+#define AUTOFS_INF_MOUNTPOINT (1<<1) /* mountpoint status for direct expire */
struct autofs_wait_queue {
wait_queue_head_t queue;
struct autofs_wait_queue *next;
autofs_wqt_t wait_queue_token;
/* We use the following to see what we are waiting for */
- unsigned int hash;
- unsigned int len;
- char *name;
+ struct qstr name;
u32 dev;
u64 ino;
uid_t uid;
pid_t tgid;
/* This is for status reporting upon return */
int status;
- atomic_t wait_ctr;
+ unsigned int wait_ctr;
};
#define AUTOFS_SBI_MAGIC 0x6d4a556d
struct mutex wq_mutex;
spinlock_t fs_lock;
struct autofs_wait_queue *queues; /* Wait queue pointer */
- spinlock_t rehash_lock;
- struct list_head rehash_list;
+ spinlock_t lookup_lock;
+ struct list_head active_list;
+ struct list_head expiring_list;
};
static inline struct autofs_sb_info *autofs4_sbi(struct super_block *sb)
static inline int autofs4_ispending(struct dentry *dentry)
{
struct autofs_info *inf = autofs4_dentry_ino(dentry);
- int pending = 0;
if (dentry->d_flags & DCACHE_AUTOFS_PENDING)
return 1;
- if (inf) {
- spin_lock(&inf->sbi->fs_lock);
- pending = inf->flags & AUTOFS_INF_EXPIRING;
- spin_unlock(&inf->sbi->fs_lock);
- }
+ if (inf->flags & AUTOFS_INF_EXPIRING)
+ return 1;
- return pending;
+ return 0;
}
static inline void autofs4_copy_atime(struct file *src, struct file *dst)
/* Expiration */
int is_autofs4_dentry(struct dentry *);
+int autofs4_expire_wait(struct dentry *dentry);
int autofs4_expire_run(struct super_block *, struct vfsmount *,
struct autofs_sb_info *,
struct autofs_packet_expire __user *);
now = jiffies;
timeout = sbi->exp_timeout;
- /* Lock the tree as we must expire as a whole */
spin_lock(&sbi->fs_lock);
if (!autofs4_direct_busy(mnt, root, timeout, do_now)) {
struct autofs_info *ino = autofs4_dentry_ino(root);
-
- /* Set this flag early to catch sys_chdir and the like */
+ if (d_mountpoint(root)) {
+ ino->flags |= AUTOFS_INF_MOUNTPOINT;
+ root->d_mounted--;
+ }
ino->flags |= AUTOFS_INF_EXPIRING;
+ init_completion(&ino->expire_complete);
spin_unlock(&sbi->fs_lock);
return root;
}
struct list_head *next;
int do_now = how & AUTOFS_EXP_IMMEDIATE;
int exp_leaves = how & AUTOFS_EXP_LEAVES;
+ struct autofs_info *ino;
+ unsigned int ino_count;
if (!root)
return NULL;
dentry = dget(dentry);
spin_unlock(&dcache_lock);
+ spin_lock(&sbi->fs_lock);
+ ino = autofs4_dentry_ino(dentry);
+
/*
* Case 1: (i) indirect mount or top level pseudo direct mount
* (autofs-4.1).
DPRINTK("checking mountpoint %p %.*s",
dentry, (int)dentry->d_name.len, dentry->d_name.name);
+ /* Path walk currently on this dentry? */
+ ino_count = atomic_read(&ino->count) + 2;
+ if (atomic_read(&dentry->d_count) > ino_count)
+ goto next;
+
/* Can we umount this guy */
if (autofs4_mount_busy(mnt, dentry))
goto next;
/* Case 2: tree mount, expire iff entire tree is not busy */
if (!exp_leaves) {
- /* Lock the tree as we must expire as a whole */
- spin_lock(&sbi->fs_lock);
- if (!autofs4_tree_busy(mnt, dentry, timeout, do_now)) {
- struct autofs_info *inf = autofs4_dentry_ino(dentry);
+ /* Path walk currently on this dentry? */
+ ino_count = atomic_read(&ino->count) + 1;
+ if (atomic_read(&dentry->d_count) > ino_count)
+ goto next;
- /* Set this flag early to catch sys_chdir and the like */
- inf->flags |= AUTOFS_INF_EXPIRING;
- spin_unlock(&sbi->fs_lock);
+ if (!autofs4_tree_busy(mnt, dentry, timeout, do_now)) {
expired = dentry;
goto found;
}
- spin_unlock(&sbi->fs_lock);
/*
* Case 3: pseudo direct mount, expire individual leaves
* (autofs-4.1).
*/
} else {
+ /* Path walk currently on this dentry? */
+ ino_count = atomic_read(&ino->count) + 1;
+ if (atomic_read(&dentry->d_count) > ino_count)
+ goto next;
+
expired = autofs4_check_leaves(mnt, dentry, timeout, do_now);
if (expired) {
dput(dentry);
}
}
next:
+ spin_unlock(&sbi->fs_lock);
dput(dentry);
spin_lock(&dcache_lock);
next = next->next;
found:
DPRINTK("returning %p %.*s",
expired, (int)expired->d_name.len, expired->d_name.name);
+ ino = autofs4_dentry_ino(expired);
+ ino->flags |= AUTOFS_INF_EXPIRING;
+ init_completion(&ino->expire_complete);
+ spin_unlock(&sbi->fs_lock);
spin_lock(&dcache_lock);
list_move(&expired->d_parent->d_subdirs, &expired->d_u.d_child);
spin_unlock(&dcache_lock);
return expired;
}
+int autofs4_expire_wait(struct dentry *dentry)
+{
+ struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ int status;
+
+ /* Block on any pending expire */
+ spin_lock(&sbi->fs_lock);
+ if (ino->flags & AUTOFS_INF_EXPIRING) {
+ spin_unlock(&sbi->fs_lock);
+
+ DPRINTK("waiting for expire %p name=%.*s",
+ dentry, dentry->d_name.len, dentry->d_name.name);
+
+ status = autofs4_wait(sbi, dentry, NFY_NONE);
+ wait_for_completion(&ino->expire_complete);
+
+ DPRINTK("expire done status=%d", status);
+
+ if (d_unhashed(dentry))
+ return -EAGAIN;
+
+ return status;
+ }
+ spin_unlock(&sbi->fs_lock);
+
+ return 0;
+}
+
/* Perform an expiry operation */
int autofs4_expire_run(struct super_block *sb,
struct vfsmount *mnt,
struct autofs_packet_expire __user *pkt_p)
{
struct autofs_packet_expire pkt;
+ struct autofs_info *ino;
struct dentry *dentry;
+ int ret = 0;
memset(&pkt,0,sizeof pkt);
dput(dentry);
if ( copy_to_user(pkt_p, &pkt, sizeof(struct autofs_packet_expire)) )
- return -EFAULT;
+ ret = -EFAULT;
- return 0;
+ spin_lock(&sbi->fs_lock);
+ ino = autofs4_dentry_ino(dentry);
+ ino->flags &= ~AUTOFS_INF_EXPIRING;
+ complete_all(&ino->expire_complete);
+ spin_unlock(&sbi->fs_lock);
+
+ return ret;
}
/* Call repeatedly until it returns -EAGAIN, meaning there's nothing
/* This is synchronous because it makes the daemon a
little easier */
- ino->flags |= AUTOFS_INF_EXPIRING;
ret = autofs4_wait(sbi, dentry, NFY_EXPIRE);
+
+ spin_lock(&sbi->fs_lock);
+ if (ino->flags & AUTOFS_INF_MOUNTPOINT) {
+ sb->s_root->d_mounted++;
+ ino->flags &= ~AUTOFS_INF_MOUNTPOINT;
+ }
ino->flags &= ~AUTOFS_INF_EXPIRING;
+ complete_all(&ino->expire_complete);
+ spin_unlock(&sbi->fs_lock);
dput(dentry);
}
static void ino_lnkfree(struct autofs_info *ino)
{
- kfree(ino->u.symlink);
- ino->u.symlink = NULL;
+ if (ino->u.symlink) {
+ kfree(ino->u.symlink);
+ ino->u.symlink = NULL;
+ }
}
struct autofs_info *autofs4_init_ino(struct autofs_info *ino,
if (ino == NULL)
return NULL;
- ino->flags = 0;
- ino->mode = mode;
- ino->inode = NULL;
- ino->dentry = NULL;
- ino->size = 0;
-
- INIT_LIST_HEAD(&ino->rehash);
+ if (!reinit) {
+ ino->flags = 0;
+ ino->inode = NULL;
+ ino->dentry = NULL;
+ ino->size = 0;
+ INIT_LIST_HEAD(&ino->active);
+ INIT_LIST_HEAD(&ino->expiring);
+ atomic_set(&ino->count, 0);
+ }
+ ino->mode = mode;
ino->last_used = jiffies;
- atomic_set(&ino->count, 0);
ino->sbi = sbi;
if (!sbi)
goto out_kill_sb;
- if (!sbi->catatonic)
- autofs4_catatonic_mode(sbi); /* Free wait queues, close pipe */
+ /* Free wait queues, close pipe */
+ autofs4_catatonic_mode(sbi);
/* Clean up and release dangling references */
autofs4_force_release(sbi);
mutex_init(&sbi->wq_mutex);
spin_lock_init(&sbi->fs_lock);
sbi->queues = NULL;
- spin_lock_init(&sbi->rehash_lock);
- INIT_LIST_HEAD(&sbi->rehash_list);
+ spin_lock_init(&sbi->lookup_lock);
+ INIT_LIST_HEAD(&sbi->active_list);
+ INIT_LIST_HEAD(&sbi->expiring_list);
s->s_blocksize = 1024;
s->s_blocksize_bits = 10;
s->s_magic = AUTOFS_SUPER_MAGIC;
static int autofs4_dir_mkdir(struct inode *,struct dentry *,int);
static int autofs4_root_ioctl(struct inode *, struct file *,unsigned int,unsigned long);
static int autofs4_dir_open(struct inode *inode, struct file *file);
-static int autofs4_dir_close(struct inode *inode, struct file *file);
-static int autofs4_dir_readdir(struct file * filp, void * dirent, filldir_t filldir);
-static int autofs4_root_readdir(struct file * filp, void * dirent, filldir_t filldir);
static struct dentry *autofs4_lookup(struct inode *,struct dentry *, struct nameidata *);
static void *autofs4_follow_link(struct dentry *, struct nameidata *);
+#define TRIGGER_FLAGS (LOOKUP_CONTINUE | LOOKUP_DIRECTORY)
+#define TRIGGER_INTENTS (LOOKUP_OPEN | LOOKUP_CREATE)
+
const struct file_operations autofs4_root_operations = {
.open = dcache_dir_open,
.release = dcache_dir_close,
.read = generic_read_dir,
- .readdir = autofs4_root_readdir,
+ .readdir = dcache_readdir,
.ioctl = autofs4_root_ioctl,
};
const struct file_operations autofs4_dir_operations = {
.open = autofs4_dir_open,
- .release = autofs4_dir_close,
+ .release = dcache_dir_close,
.read = generic_read_dir,
- .readdir = autofs4_dir_readdir,
+ .readdir = dcache_readdir,
};
const struct inode_operations autofs4_indirect_root_inode_operations = {
.rmdir = autofs4_dir_rmdir,
};
-static int autofs4_root_readdir(struct file *file, void *dirent,
- filldir_t filldir)
-{
- struct autofs_sb_info *sbi = autofs4_sbi(file->f_path.dentry->d_sb);
- int oz_mode = autofs4_oz_mode(sbi);
-
- DPRINTK("called, filp->f_pos = %lld", file->f_pos);
-
- /*
- * Don't set reghost flag if:
- * 1) f_pos is larger than zero -- we've already been here.
- * 2) we haven't even enabled reghosting in the 1st place.
- * 3) this is the daemon doing a readdir
- */
- if (oz_mode && file->f_pos == 0 && sbi->reghost_enabled)
- sbi->needs_reghost = 1;
-
- DPRINTK("needs_reghost = %d", sbi->needs_reghost);
-
- return dcache_readdir(file, dirent, filldir);
-}
-
static int autofs4_dir_open(struct inode *inode, struct file *file)
{
struct dentry *dentry = file->f_path.dentry;
- struct vfsmount *mnt = file->f_path.mnt;
struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
- struct dentry *cursor;
- int status;
-
- status = dcache_dir_open(inode, file);
- if (status)
- goto out;
-
- cursor = file->private_data;
- cursor->d_fsdata = NULL;
DPRINTK("file=%p dentry=%p %.*s",
file, dentry, dentry->d_name.len, dentry->d_name.name);
if (autofs4_oz_mode(sbi))
goto out;
- if (autofs4_ispending(dentry)) {
- DPRINTK("dentry busy");
- dcache_dir_close(inode, file);
- status = -EBUSY;
- goto out;
- }
-
- status = -ENOENT;
- if (!d_mountpoint(dentry) && dentry->d_op && dentry->d_op->d_revalidate) {
- struct nameidata nd;
- int empty, ret;
-
- /* In case there are stale directory dentrys from a failed mount */
- spin_lock(&dcache_lock);
- empty = list_empty(&dentry->d_subdirs);
+ /*
+ * An empty directory in an autofs file system is always a
+ * mount point. The daemon must have failed to mount this
+ * during lookup so it doesn't exist. This can happen, for
+ * example, if user space returns an incorrect status for a
+ * mount request. Otherwise we're doing a readdir on the
+ * autofs file system so just let the libfs routines handle
+ * it.
+ */
+ spin_lock(&dcache_lock);
+ if (!d_mountpoint(dentry) && __simple_empty(dentry)) {
spin_unlock(&dcache_lock);
-
- if (!empty)
- d_invalidate(dentry);
-
- nd.flags = LOOKUP_DIRECTORY;
- ret = (dentry->d_op->d_revalidate)(dentry, &nd);
-
- if (ret <= 0) {
- if (ret < 0)
- status = ret;
- dcache_dir_close(inode, file);
- goto out;
- }
+ return -ENOENT;
}
+ spin_unlock(&dcache_lock);
- if (d_mountpoint(dentry)) {
- struct file *fp = NULL;
- struct path fp_path = { .dentry = dentry, .mnt = mnt };
-
- path_get(&fp_path);
-
- if (!autofs4_follow_mount(&fp_path.mnt, &fp_path.dentry)) {
- path_put(&fp_path);
- dcache_dir_close(inode, file);
- goto out;
- }
-
- fp = dentry_open(fp_path.dentry, fp_path.mnt, file->f_flags);
- status = PTR_ERR(fp);
- if (IS_ERR(fp)) {
- dcache_dir_close(inode, file);
- goto out;
- }
- cursor->d_fsdata = fp;
- }
- return 0;
-out:
- return status;
-}
-
-static int autofs4_dir_close(struct inode *inode, struct file *file)
-{
- struct dentry *dentry = file->f_path.dentry;
- struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
- struct dentry *cursor = file->private_data;
- int status = 0;
-
- DPRINTK("file=%p dentry=%p %.*s",
- file, dentry, dentry->d_name.len, dentry->d_name.name);
-
- if (autofs4_oz_mode(sbi))
- goto out;
-
- if (autofs4_ispending(dentry)) {
- DPRINTK("dentry busy");
- status = -EBUSY;
- goto out;
- }
-
- if (d_mountpoint(dentry)) {
- struct file *fp = cursor->d_fsdata;
- if (!fp) {
- status = -ENOENT;
- goto out;
- }
- filp_close(fp, current->files);
- }
-out:
- dcache_dir_close(inode, file);
- return status;
-}
-
-static int autofs4_dir_readdir(struct file *file, void *dirent, filldir_t filldir)
-{
- struct dentry *dentry = file->f_path.dentry;
- struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
- struct dentry *cursor = file->private_data;
- int status;
-
- DPRINTK("file=%p dentry=%p %.*s",
- file, dentry, dentry->d_name.len, dentry->d_name.name);
-
- if (autofs4_oz_mode(sbi))
- goto out;
-
- if (autofs4_ispending(dentry)) {
- DPRINTK("dentry busy");
- return -EBUSY;
- }
-
- if (d_mountpoint(dentry)) {
- struct file *fp = cursor->d_fsdata;
-
- if (!fp)
- return -ENOENT;
-
- if (!fp->f_op || !fp->f_op->readdir)
- goto out;
-
- status = vfs_readdir(fp, filldir, dirent);
- file->f_pos = fp->f_pos;
- if (status)
- autofs4_copy_atime(file, fp);
- return status;
- }
out:
- return dcache_readdir(file, dirent, filldir);
+ return dcache_dir_open(inode, file);
}
static int try_to_fill_dentry(struct dentry *dentry, int flags)
{
struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
struct autofs_info *ino = autofs4_dentry_ino(dentry);
- struct dentry *new;
int status;
- /* Block on any pending expiry here; invalidate the dentry
- when expiration is done to trigger mount request with a new
- dentry */
- if (ino && (ino->flags & AUTOFS_INF_EXPIRING)) {
- DPRINTK("waiting for expire %p name=%.*s",
- dentry, dentry->d_name.len, dentry->d_name.name);
-
- status = autofs4_wait(sbi, dentry, NFY_NONE);
-
- DPRINTK("expire done status=%d", status);
-
- /*
- * If the directory still exists the mount request must
- * continue otherwise it can't be followed at the right
- * time during the walk.
- */
- status = d_invalidate(dentry);
- if (status != -EBUSY)
- return -EAGAIN;
- }
-
DPRINTK("dentry=%p %.*s ino=%p",
dentry, dentry->d_name.len, dentry->d_name.name, dentry->d_inode);
return status;
}
/* Trigger mount for path component or follow link */
- } else if (flags & (LOOKUP_CONTINUE | LOOKUP_DIRECTORY) ||
+ } else if (dentry->d_flags & DCACHE_AUTOFS_PENDING ||
+ flags & (TRIGGER_FLAGS | TRIGGER_INTENTS) ||
current->link_count) {
DPRINTK("waiting for mount name=%.*s",
dentry->d_name.len, dentry->d_name.name);
dentry->d_flags &= ~DCACHE_AUTOFS_PENDING;
spin_unlock(&dentry->d_lock);
- /*
- * The dentry that is passed in from lookup may not be the one
- * we end up using, as mkdir can create a new one. If this
- * happens, and another process tries the lookup at the same time,
- * it will set the PENDING flag on this new dentry, but add itself
- * to our waitq. Then, if after the lookup succeeds, the first
- * process that requested the mount performs another lookup of the
- * same directory, it will show up as still pending! So, we need
- * to redo the lookup here and clear pending on that dentry.
- */
- if (d_unhashed(dentry)) {
- new = d_lookup(dentry->d_parent, &dentry->d_name);
- if (new) {
- spin_lock(&new->d_lock);
- new->d_flags &= ~DCACHE_AUTOFS_PENDING;
- spin_unlock(&new->d_lock);
- dput(new);
- }
- }
-
return 0;
}
DPRINTK("dentry=%p %.*s oz_mode=%d nd->flags=%d",
dentry, dentry->d_name.len, dentry->d_name.name, oz_mode,
nd->flags);
-
- /* If it's our master or we shouldn't trigger a mount we're done */
- lookup_type = nd->flags & (LOOKUP_CONTINUE | LOOKUP_DIRECTORY);
- if (oz_mode || !lookup_type)
+ /*
+ * For an expire of a covered direct or offset mount we need
+ * to beeak out of follow_down() at the autofs mount trigger
+ * (d_mounted--), so we can see the expiring flag, and manage
+ * the blocking and following here until the expire is completed.
+ */
+ if (oz_mode) {
+ spin_lock(&sbi->fs_lock);
+ if (ino->flags & AUTOFS_INF_EXPIRING) {
+ spin_unlock(&sbi->fs_lock);
+ /* Follow down to our covering mount. */
+ if (!follow_down(&nd->path.mnt, &nd->path.dentry))
+ goto done;
+ goto follow;
+ }
+ spin_unlock(&sbi->fs_lock);
goto done;
+ }
- /* If an expire request is pending wait for it. */
- if (ino && (ino->flags & AUTOFS_INF_EXPIRING)) {
- DPRINTK("waiting for active request %p name=%.*s",
- dentry, dentry->d_name.len, dentry->d_name.name);
-
- status = autofs4_wait(sbi, dentry, NFY_NONE);
+ /* If an expire request is pending everyone must wait. */
+ autofs4_expire_wait(dentry);
- DPRINTK("request done status=%d", status);
- }
+ /* We trigger a mount for almost all flags */
+ lookup_type = nd->flags & (TRIGGER_FLAGS | TRIGGER_INTENTS);
+ if (!(lookup_type || dentry->d_flags & DCACHE_AUTOFS_PENDING))
+ goto follow;
/*
- * If the dentry contains directories then it is an
- * autofs multi-mount with no root mount offset. So
- * don't try to mount it again.
+ * If the dentry contains directories then it is an autofs
+ * multi-mount with no root mount offset. So don't try to
+ * mount it again.
*/
spin_lock(&dcache_lock);
- if (!d_mountpoint(dentry) && __simple_empty(dentry)) {
+ if (dentry->d_flags & DCACHE_AUTOFS_PENDING ||
+ (!d_mountpoint(dentry) && __simple_empty(dentry))) {
spin_unlock(&dcache_lock);
status = try_to_fill_dentry(dentry, 0);
if (status)
goto out_error;
- /*
- * The mount succeeded but if there is no root mount
- * it must be an autofs multi-mount with no root offset
- * so we don't need to follow the mount.
- */
- if (d_mountpoint(dentry)) {
- if (!autofs4_follow_mount(&nd->path.mnt,
- &nd->path.dentry)) {
- status = -ENOENT;
- goto out_error;
- }
- }
-
- goto done;
+ goto follow;
}
spin_unlock(&dcache_lock);
+follow:
+ /*
+ * If there is no root mount it must be an autofs
+ * multi-mount with no root offset so we don't need
+ * to follow it.
+ */
+ if (d_mountpoint(dentry)) {
+ if (!autofs4_follow_mount(&nd->path.mnt,
+ &nd->path.dentry)) {
+ status = -ENOENT;
+ goto out_error;
+ }
+ }
done:
return NULL;
int status = 1;
/* Pending dentry */
+ spin_lock(&sbi->fs_lock);
if (autofs4_ispending(dentry)) {
/* The daemon never causes a mount to trigger */
+ spin_unlock(&sbi->fs_lock);
+
if (oz_mode)
return 1;
+ /*
+ * If the directory has gone away due to an expire
+ * we have been called as ->d_revalidate() and so
+ * we need to return false and proceed to ->lookup().
+ */
+ if (autofs4_expire_wait(dentry) == -EAGAIN)
+ return 0;
+
/*
* A zero status is success otherwise we have a
* negative error code.
if (status == 0)
return 1;
- /*
- * A status of EAGAIN here means that the dentry has gone
- * away while waiting for an expire to complete. If we are
- * racing with expire lookup will wait for it so this must
- * be a revalidate and we need to send it to lookup.
- */
- if (status == -EAGAIN)
- return 0;
-
return status;
}
+ spin_unlock(&sbi->fs_lock);
/* Negative dentry.. invalidate if "old" */
if (dentry->d_inode == NULL)
DPRINTK("dentry=%p %.*s, emptydir",
dentry, dentry->d_name.len, dentry->d_name.name);
spin_unlock(&dcache_lock);
+
/* The daemon never causes a mount to trigger */
if (oz_mode)
return 1;
struct autofs_sb_info *sbi = autofs4_sbi(de->d_sb);
if (sbi) {
- spin_lock(&sbi->rehash_lock);
- if (!list_empty(&inf->rehash))
- list_del(&inf->rehash);
- spin_unlock(&sbi->rehash_lock);
+ spin_lock(&sbi->lookup_lock);
+ if (!list_empty(&inf->active))
+ list_del(&inf->active);
+ if (!list_empty(&inf->expiring))
+ list_del(&inf->expiring);
+ spin_unlock(&sbi->lookup_lock);
}
inf->dentry = NULL;
.d_release = autofs4_dentry_release,
};
-static struct dentry *autofs4_lookup_unhashed(struct autofs_sb_info *sbi, struct dentry *parent, struct qstr *name)
+static struct dentry *autofs4_lookup_active(struct autofs_sb_info *sbi, struct dentry *parent, struct qstr *name)
{
unsigned int len = name->len;
unsigned int hash = name->hash;
struct list_head *p, *head;
spin_lock(&dcache_lock);
- spin_lock(&sbi->rehash_lock);
- head = &sbi->rehash_list;
+ spin_lock(&sbi->lookup_lock);
+ head = &sbi->active_list;
list_for_each(p, head) {
struct autofs_info *ino;
struct dentry *dentry;
struct qstr *qstr;
- ino = list_entry(p, struct autofs_info, rehash);
+ ino = list_entry(p, struct autofs_info, active);
+ dentry = ino->dentry;
+
+ spin_lock(&dentry->d_lock);
+
+ /* Already gone? */
+ if (atomic_read(&dentry->d_count) == 0)
+ goto next;
+
+ qstr = &dentry->d_name;
+
+ if (dentry->d_name.hash != hash)
+ goto next;
+ if (dentry->d_parent != parent)
+ goto next;
+
+ if (qstr->len != len)
+ goto next;
+ if (memcmp(qstr->name, str, len))
+ goto next;
+
+ if (d_unhashed(dentry)) {
+ dget(dentry);
+ spin_unlock(&dentry->d_lock);
+ spin_unlock(&sbi->lookup_lock);
+ spin_unlock(&dcache_lock);
+ return dentry;
+ }
+next:
+ spin_unlock(&dentry->d_lock);
+ }
+ spin_unlock(&sbi->lookup_lock);
+ spin_unlock(&dcache_lock);
+
+ return NULL;
+}
+
+static struct dentry *autofs4_lookup_expiring(struct autofs_sb_info *sbi, struct dentry *parent, struct qstr *name)
+{
+ unsigned int len = name->len;
+ unsigned int hash = name->hash;
+ const unsigned char *str = name->name;
+ struct list_head *p, *head;
+
+ spin_lock(&dcache_lock);
+ spin_lock(&sbi->lookup_lock);
+ head = &sbi->expiring_list;
+ list_for_each(p, head) {
+ struct autofs_info *ino;
+ struct dentry *dentry;
+ struct qstr *qstr;
+
+ ino = list_entry(p, struct autofs_info, expiring);
dentry = ino->dentry;
spin_lock(&dentry->d_lock);
goto next;
if (d_unhashed(dentry)) {
- struct inode *inode = dentry->d_inode;
-
- ino = autofs4_dentry_ino(dentry);
- list_del_init(&ino->rehash);
dget(dentry);
- /*
- * Make the rehashed dentry negative so the VFS
- * behaves as it should.
- */
- if (inode) {
- dentry->d_inode = NULL;
- list_del_init(&dentry->d_alias);
- spin_unlock(&dentry->d_lock);
- spin_unlock(&sbi->rehash_lock);
- spin_unlock(&dcache_lock);
- iput(inode);
- return dentry;
- }
spin_unlock(&dentry->d_lock);
- spin_unlock(&sbi->rehash_lock);
+ spin_unlock(&sbi->lookup_lock);
spin_unlock(&dcache_lock);
return dentry;
}
next:
spin_unlock(&dentry->d_lock);
}
- spin_unlock(&sbi->rehash_lock);
+ spin_unlock(&sbi->lookup_lock);
spin_unlock(&dcache_lock);
return NULL;
static struct dentry *autofs4_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct autofs_sb_info *sbi;
- struct dentry *unhashed;
+ struct autofs_info *ino;
+ struct dentry *expiring, *unhashed;
int oz_mode;
DPRINTK("name = %.*s",
DPRINTK("pid = %u, pgrp = %u, catatonic = %d, oz_mode = %d",
current->pid, task_pgrp_nr(current), sbi->catatonic, oz_mode);
- unhashed = autofs4_lookup_unhashed(sbi, dentry->d_parent, &dentry->d_name);
- if (!unhashed) {
+ expiring = autofs4_lookup_expiring(sbi, dentry->d_parent, &dentry->d_name);
+ if (expiring) {
+ /*
+ * If we are racing with expire the request might not
+ * be quite complete but the directory has been removed
+ * so it must have been successful, so just wait for it.
+ */
+ ino = autofs4_dentry_ino(expiring);
+ autofs4_expire_wait(expiring);
+ spin_lock(&sbi->lookup_lock);
+ if (!list_empty(&ino->expiring))
+ list_del_init(&ino->expiring);
+ spin_unlock(&sbi->lookup_lock);
+ dput(expiring);
+ }
+
+ unhashed = autofs4_lookup_active(sbi, dentry->d_parent, &dentry->d_name);
+ if (unhashed)
+ dentry = unhashed;
+ else {
/*
* Mark the dentry incomplete but don't hash it. We do this
* to serialize our inode creation operations (symlink and
*/
dentry->d_op = &autofs4_root_dentry_operations;
- dentry->d_fsdata = NULL;
- d_instantiate(dentry, NULL);
- } else {
- struct autofs_info *ino = autofs4_dentry_ino(unhashed);
- DPRINTK("rehash %p with %p", dentry, unhashed);
/*
- * If we are racing with expire the request might not
- * be quite complete but the directory has been removed
- * so it must have been successful, so just wait for it.
- * We need to ensure the AUTOFS_INF_EXPIRING flag is clear
- * before continuing as revalidate may fail when calling
- * try_to_fill_dentry (returning EAGAIN) if we don't.
+ * And we need to ensure that the same dentry is used for
+ * all following lookup calls until it is hashed so that
+ * the dentry flags are persistent throughout the request.
*/
- while (ino && (ino->flags & AUTOFS_INF_EXPIRING)) {
- DPRINTK("wait for incomplete expire %p name=%.*s",
- unhashed, unhashed->d_name.len,
- unhashed->d_name.name);
- autofs4_wait(sbi, unhashed, NFY_NONE);
- DPRINTK("request completed");
- }
- dentry = unhashed;
+ ino = autofs4_init_ino(NULL, sbi, 0555);
+ if (!ino)
+ return ERR_PTR(-ENOMEM);
+
+ dentry->d_fsdata = ino;
+ ino->dentry = dentry;
+
+ spin_lock(&sbi->lookup_lock);
+ list_add(&ino->active, &sbi->active_list);
+ spin_unlock(&sbi->lookup_lock);
+
+ d_instantiate(dentry, NULL);
}
if (!oz_mode) {
spin_lock(&dentry->d_lock);
dentry->d_flags |= DCACHE_AUTOFS_PENDING;
spin_unlock(&dentry->d_lock);
- }
-
- if (dentry->d_op && dentry->d_op->d_revalidate) {
- mutex_unlock(&dir->i_mutex);
- (dentry->d_op->d_revalidate)(dentry, nd);
- mutex_lock(&dir->i_mutex);
+ if (dentry->d_op && dentry->d_op->d_revalidate) {
+ mutex_unlock(&dir->i_mutex);
+ (dentry->d_op->d_revalidate)(dentry, nd);
+ mutex_lock(&dir->i_mutex);
+ }
}
/*
return ERR_PTR(-ERESTARTNOINTR);
}
}
- spin_lock(&dentry->d_lock);
- dentry->d_flags &= ~DCACHE_AUTOFS_PENDING;
- spin_unlock(&dentry->d_lock);
+ if (!oz_mode) {
+ spin_lock(&dentry->d_lock);
+ dentry->d_flags &= ~DCACHE_AUTOFS_PENDING;
+ spin_unlock(&dentry->d_lock);
+ }
}
/*
}
if (unhashed)
- return dentry;
+ return unhashed;
return NULL;
}
return -EACCES;
ino = autofs4_init_ino(ino, sbi, S_IFLNK | 0555);
- if (ino == NULL)
- return -ENOSPC;
+ if (!ino)
+ return -ENOMEM;
- ino->size = strlen(symname);
- ino->u.symlink = cp = kmalloc(ino->size + 1, GFP_KERNEL);
+ spin_lock(&sbi->lookup_lock);
+ if (!list_empty(&ino->active))
+ list_del_init(&ino->active);
+ spin_unlock(&sbi->lookup_lock);
- if (cp == NULL) {
- kfree(ino);
- return -ENOSPC;
+ ino->size = strlen(symname);
+ cp = kmalloc(ino->size + 1, GFP_KERNEL);
+ if (!cp) {
+ if (!dentry->d_fsdata)
+ kfree(ino);
+ return -ENOMEM;
}
strcpy(cp, symname);
inode = autofs4_get_inode(dir->i_sb, ino);
+ if (!inode) {
+ kfree(cp);
+ if (!dentry->d_fsdata)
+ kfree(ino);
+ return -ENOMEM;
+ }
d_add(dentry, inode);
if (dir == dir->i_sb->s_root->d_inode)
atomic_inc(&p_ino->count);
ino->inode = inode;
+ ino->u.symlink = cp;
dir->i_mtime = CURRENT_TIME;
return 0;
* that the file no longer exists. However, doing that means that the
* VFS layer can turn the dentry into a negative dentry. We don't want
* this, because the unlink is probably the result of an expire.
- * We simply d_drop it and add it to a rehash candidates list in the
- * super block, which allows the dentry lookup to reuse it retaining
- * the flags, such as expire in progress, in case we're racing with expire.
+ * We simply d_drop it and add it to a expiring list in the super block,
+ * which allows the dentry lookup to check for an incomplete expire.
*
* If a process is blocked on the dentry waiting for the expire to finish,
* it will invalidate the dentry and try to mount with a new one.
dir->i_mtime = CURRENT_TIME;
spin_lock(&dcache_lock);
- spin_lock(&sbi->rehash_lock);
- list_add(&ino->rehash, &sbi->rehash_list);
- spin_unlock(&sbi->rehash_lock);
+ spin_lock(&sbi->lookup_lock);
+ if (list_empty(&ino->expiring))
+ list_add(&ino->expiring, &sbi->expiring_list);
+ spin_unlock(&sbi->lookup_lock);
spin_lock(&dentry->d_lock);
__d_drop(dentry);
spin_unlock(&dentry->d_lock);
spin_unlock(&dcache_lock);
return -ENOTEMPTY;
}
- spin_lock(&sbi->rehash_lock);
- list_add(&ino->rehash, &sbi->rehash_list);
- spin_unlock(&sbi->rehash_lock);
+ spin_lock(&sbi->lookup_lock);
+ if (list_empty(&ino->expiring))
+ list_add(&ino->expiring, &sbi->expiring_list);
+ spin_unlock(&sbi->lookup_lock);
spin_lock(&dentry->d_lock);
__d_drop(dentry);
spin_unlock(&dentry->d_lock);
dentry, dentry->d_name.len, dentry->d_name.name);
ino = autofs4_init_ino(ino, sbi, S_IFDIR | 0555);
- if (ino == NULL)
- return -ENOSPC;
+ if (!ino)
+ return -ENOMEM;
+
+ spin_lock(&sbi->lookup_lock);
+ if (!list_empty(&ino->active))
+ list_del_init(&ino->active);
+ spin_unlock(&sbi->lookup_lock);
inode = autofs4_get_inode(dir->i_sb, ino);
+ if (!inode) {
+ if (!dentry->d_fsdata)
+ kfree(ino);
+ return -ENOMEM;
+ }
d_add(dentry, inode);
if (dir == dir->i_sb->s_root->d_inode)
return put_user(sbi->sub_version, p);
}
-/*
- * Tells the daemon whether we need to reghost or not. Also, clears
- * the reghost_needed flag.
- */
-static inline int autofs4_ask_reghost(struct autofs_sb_info *sbi, int __user *p)
-{
- int status;
-
- DPRINTK("returning %d", sbi->needs_reghost);
-
- status = put_user(sbi->needs_reghost, p);
- if (status)
- return status;
-
- sbi->needs_reghost = 0;
- return 0;
-}
-
-/*
- * Enable / Disable reghosting ioctl() operation
- */
-static inline int autofs4_toggle_reghost(struct autofs_sb_info *sbi, int __user *p)
-{
- int status;
- int val;
-
- status = get_user(val, p);
-
- DPRINTK("reghost = %d", val);
-
- if (status)
- return status;
-
- /* turn on/off reghosting, with the val */
- sbi->reghost_enabled = val;
- return 0;
-}
-
/*
* Tells the daemon whether it can umount the autofs mount.
*/
case AUTOFS_IOC_SETTIMEOUT:
return autofs4_get_set_timeout(sbi, p);
- case AUTOFS_IOC_TOGGLEREGHOST:
- return autofs4_toggle_reghost(sbi, p);
- case AUTOFS_IOC_ASKREGHOST:
- return autofs4_ask_reghost(sbi, p);
-
case AUTOFS_IOC_ASKUMOUNT:
return autofs4_ask_umount(filp->f_path.mnt, p);
{
struct autofs_wait_queue *wq, *nwq;
+ mutex_lock(&sbi->wq_mutex);
+ if (sbi->catatonic) {
+ mutex_unlock(&sbi->wq_mutex);
+ return;
+ }
+
DPRINTK("entering catatonic mode");
sbi->catatonic = 1;
while (wq) {
nwq = wq->next;
wq->status = -ENOENT; /* Magic is gone - report failure */
- kfree(wq->name);
- wq->name = NULL;
+ if (wq->name.name) {
+ kfree(wq->name.name);
+ wq->name.name = NULL;
+ }
+ wq->wait_ctr--;
wake_up_interruptible(&wq->queue);
wq = nwq;
}
fput(sbi->pipe); /* Close the pipe */
sbi->pipe = NULL;
+ sbi->pipefd = -1;
+ mutex_unlock(&sbi->wq_mutex);
}
static int autofs4_write(struct file *file, const void *addr, int bytes)
union autofs_packet_union v4_pkt;
union autofs_v5_packet_union v5_pkt;
} pkt;
+ struct file *pipe = NULL;
size_t pktsz;
DPRINTK("wait id = 0x%08lx, name = %.*s, type=%d",
- wq->wait_queue_token, wq->len, wq->name, type);
+ wq->wait_queue_token, wq->name.len, wq->name.name, type);
memset(&pkt,0,sizeof pkt); /* For security reasons */
pktsz = sizeof(*mp);
mp->wait_queue_token = wq->wait_queue_token;
- mp->len = wq->len;
- memcpy(mp->name, wq->name, wq->len);
- mp->name[wq->len] = '\0';
+ mp->len = wq->name.len;
+ memcpy(mp->name, wq->name.name, wq->name.len);
+ mp->name[wq->name.len] = '\0';
break;
}
case autofs_ptype_expire_multi:
pktsz = sizeof(*ep);
ep->wait_queue_token = wq->wait_queue_token;
- ep->len = wq->len;
- memcpy(ep->name, wq->name, wq->len);
- ep->name[wq->len] = '\0';
+ ep->len = wq->name.len;
+ memcpy(ep->name, wq->name.name, wq->name.len);
+ ep->name[wq->name.len] = '\0';
break;
}
/*
pktsz = sizeof(*packet);
packet->wait_queue_token = wq->wait_queue_token;
- packet->len = wq->len;
- memcpy(packet->name, wq->name, wq->len);
- packet->name[wq->len] = '\0';
+ packet->len = wq->name.len;
+ memcpy(packet->name, wq->name.name, wq->name.len);
+ packet->name[wq->name.len] = '\0';
packet->dev = wq->dev;
packet->ino = wq->ino;
packet->uid = wq->uid;
return;
}
- if (autofs4_write(sbi->pipe, &pkt, pktsz))
- autofs4_catatonic_mode(sbi);
+ /* Check if we have become catatonic */
+ mutex_lock(&sbi->wq_mutex);
+ if (!sbi->catatonic) {
+ pipe = sbi->pipe;
+ get_file(pipe);
+ }
+ mutex_unlock(&sbi->wq_mutex);
+
+ if (pipe) {
+ if (autofs4_write(pipe, &pkt, pktsz))
+ autofs4_catatonic_mode(sbi);
+ fput(pipe);
+ }
}
static int autofs4_getpath(struct autofs_sb_info *sbi,
}
static struct autofs_wait_queue *
-autofs4_find_wait(struct autofs_sb_info *sbi,
- char *name, unsigned int hash, unsigned int len)
+autofs4_find_wait(struct autofs_sb_info *sbi, struct qstr *qstr)
{
struct autofs_wait_queue *wq;
for (wq = sbi->queues; wq; wq = wq->next) {
- if (wq->hash == hash &&
- wq->len == len &&
- wq->name && !memcmp(wq->name, name, len))
+ if (wq->name.hash == qstr->hash &&
+ wq->name.len == qstr->len &&
+ wq->name.name &&
+ !memcmp(wq->name.name, qstr->name, qstr->len))
break;
}
return wq;
}
-int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
- enum autofs_notify notify)
+/*
+ * Check if we have a valid request.
+ * Returns
+ * 1 if the request should continue.
+ * In this case we can return an autofs_wait_queue entry if one is
+ * found or NULL to idicate a new wait needs to be created.
+ * 0 or a negative errno if the request shouldn't continue.
+ */
+static int validate_request(struct autofs_wait_queue **wait,
+ struct autofs_sb_info *sbi,
+ struct qstr *qstr,
+ struct dentry*dentry, enum autofs_notify notify)
{
- struct autofs_info *ino;
struct autofs_wait_queue *wq;
- char *name;
- unsigned int len = 0;
- unsigned int hash = 0;
- int status, type;
-
- /* In catatonic mode, we don't wait for nobody */
- if (sbi->catatonic)
- return -ENOENT;
-
- name = kmalloc(NAME_MAX + 1, GFP_KERNEL);
- if (!name)
- return -ENOMEM;
+ struct autofs_info *ino;
- /* If this is a direct mount request create a dummy name */
- if (IS_ROOT(dentry) && (sbi->type & AUTOFS_TYPE_DIRECT))
- len = sprintf(name, "%p", dentry);
- else {
- len = autofs4_getpath(sbi, dentry, &name);
- if (!len) {
- kfree(name);
- return -ENOENT;
- }
+ /* Wait in progress, continue; */
+ wq = autofs4_find_wait(sbi, qstr);
+ if (wq) {
+ *wait = wq;
+ return 1;
}
- hash = full_name_hash(name, len);
- if (mutex_lock_interruptible(&sbi->wq_mutex)) {
- kfree(name);
- return -EINTR;
- }
+ *wait = NULL;
- wq = autofs4_find_wait(sbi, name, hash, len);
+ /* If we don't yet have any info this is a new request */
ino = autofs4_dentry_ino(dentry);
- if (!wq && ino && notify == NFY_NONE) {
+ if (!ino)
+ return 1;
+
+ /*
+ * If we've been asked to wait on an existing expire (NFY_NONE)
+ * but there is no wait in the queue ...
+ */
+ if (notify == NFY_NONE) {
/*
* Either we've betean the pending expire to post it's
* wait or it finished while we waited on the mutex.
while (ino->flags & AUTOFS_INF_EXPIRING) {
mutex_unlock(&sbi->wq_mutex);
schedule_timeout_interruptible(HZ/10);
- if (mutex_lock_interruptible(&sbi->wq_mutex)) {
- kfree(name);
+ if (mutex_lock_interruptible(&sbi->wq_mutex))
return -EINTR;
+
+ wq = autofs4_find_wait(sbi, qstr);
+ if (wq) {
+ *wait = wq;
+ return 1;
}
- wq = autofs4_find_wait(sbi, name, hash, len);
- if (wq)
- break;
}
/*
* cases where we wait on NFY_NONE neither depend on the
* return status of the wait.
*/
- if (!wq) {
+ return 0;
+ }
+
+ /*
+ * If we've been asked to trigger a mount and the request
+ * completed while we waited on the mutex ...
+ */
+ if (notify == NFY_MOUNT) {
+ /*
+ * If the dentry isn't hashed just go ahead and try the
+ * mount again with a new wait (not much else we can do).
+ */
+ if (!d_unhashed(dentry)) {
+ /*
+ * But if the dentry is hashed, that means that we
+ * got here through the revalidate path. Thus, we
+ * need to check if the dentry has been mounted
+ * while we waited on the wq_mutex. If it has,
+ * simply return success.
+ */
+ if (d_mountpoint(dentry))
+ return 0;
+ }
+ }
+
+ return 1;
+}
+
+int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
+ enum autofs_notify notify)
+{
+ struct autofs_wait_queue *wq;
+ struct qstr qstr;
+ char *name;
+ int status, ret, type;
+
+ /* In catatonic mode, we don't wait for nobody */
+ if (sbi->catatonic)
+ return -ENOENT;
+
+ if (!dentry->d_inode) {
+ /*
+ * A wait for a negative dentry is invalid for certain
+ * cases. A direct or offset mount "always" has its mount
+ * point directory created and so the request dentry must
+ * be positive or the map key doesn't exist. The situation
+ * is very similar for indirect mounts except only dentrys
+ * in the root of the autofs file system may be negative.
+ */
+ if (sbi->type & (AUTOFS_TYPE_DIRECT|AUTOFS_TYPE_OFFSET))
+ return -ENOENT;
+ else if (!IS_ROOT(dentry->d_parent))
+ return -ENOENT;
+ }
+
+ name = kmalloc(NAME_MAX + 1, GFP_KERNEL);
+ if (!name)
+ return -ENOMEM;
+
+ /* If this is a direct mount request create a dummy name */
+ if (IS_ROOT(dentry) && (sbi->type & AUTOFS_TYPE_DIRECT))
+ qstr.len = sprintf(name, "%p", dentry);
+ else {
+ qstr.len = autofs4_getpath(sbi, dentry, &name);
+ if (!qstr.len) {
kfree(name);
- mutex_unlock(&sbi->wq_mutex);
- return 0;
+ return -ENOENT;
}
}
+ qstr.name = name;
+ qstr.hash = full_name_hash(name, qstr.len);
+
+ if (mutex_lock_interruptible(&sbi->wq_mutex)) {
+ kfree(qstr.name);
+ return -EINTR;
+ }
+
+ ret = validate_request(&wq, sbi, &qstr, dentry, notify);
+ if (ret <= 0) {
+ if (ret == 0)
+ mutex_unlock(&sbi->wq_mutex);
+ kfree(qstr.name);
+ return ret;
+ }
if (!wq) {
/* Create a new wait queue */
wq = kmalloc(sizeof(struct autofs_wait_queue),GFP_KERNEL);
if (!wq) {
- kfree(name);
+ kfree(qstr.name);
mutex_unlock(&sbi->wq_mutex);
return -ENOMEM;
}
wq->next = sbi->queues;
sbi->queues = wq;
init_waitqueue_head(&wq->queue);
- wq->hash = hash;
- wq->name = name;
- wq->len = len;
+ memcpy(&wq->name, &qstr, sizeof(struct qstr));
wq->dev = autofs4_get_dev(sbi);
wq->ino = autofs4_get_ino(sbi);
wq->uid = current->uid;
wq->pid = current->pid;
wq->tgid = current->tgid;
wq->status = -EINTR; /* Status return if interrupted */
- atomic_set(&wq->wait_ctr, 2);
+ wq->wait_ctr = 2;
mutex_unlock(&sbi->wq_mutex);
if (sbi->version < 5) {
}
DPRINTK("new wait id = 0x%08lx, name = %.*s, nfy=%d\n",
- (unsigned long) wq->wait_queue_token, wq->len, wq->name, notify);
+ (unsigned long) wq->wait_queue_token, wq->name.len,
+ wq->name.name, notify);
/* autofs4_notify_daemon() may block */
autofs4_notify_daemon(sbi, wq, type);
} else {
- atomic_inc(&wq->wait_ctr);
+ wq->wait_ctr++;
mutex_unlock(&sbi->wq_mutex);
- kfree(name);
+ kfree(qstr.name);
DPRINTK("existing wait id = 0x%08lx, name = %.*s, nfy=%d",
- (unsigned long) wq->wait_queue_token, wq->len, wq->name, notify);
- }
-
- /* wq->name is NULL if and only if the lock is already released */
-
- if (sbi->catatonic) {
- /* We might have slept, so check again for catatonic mode */
- wq->status = -ENOENT;
- kfree(wq->name);
- wq->name = NULL;
+ (unsigned long) wq->wait_queue_token, wq->name.len,
+ wq->name.name, notify);
}
- if (wq->name) {
+ /*
+ * wq->name.name is NULL iff the lock is already released
+ * or the mount has been made catatonic.
+ */
+ if (wq->name.name) {
/* Block all but "shutdown" signals while waiting */
sigset_t oldset;
unsigned long irqflags;
recalc_sigpending();
spin_unlock_irqrestore(¤t->sighand->siglock, irqflags);
- wait_event_interruptible(wq->queue, wq->name == NULL);
+ wait_event_interruptible(wq->queue, wq->name.name == NULL);
spin_lock_irqsave(¤t->sighand->siglock, irqflags);
current->blocked = oldset;
status = wq->status;
/* Are we the last process to need status? */
- if (atomic_dec_and_test(&wq->wait_ctr))
+ mutex_lock(&sbi->wq_mutex);
+ if (!--wq->wait_ctr)
kfree(wq);
+ mutex_unlock(&sbi->wq_mutex);
return status;
}
}
*wql = wq->next; /* Unlink from chain */
- mutex_unlock(&sbi->wq_mutex);
- kfree(wq->name);
- wq->name = NULL; /* Do not wait on this queue */
-
+ kfree(wq->name.name);
+ wq->name.name = NULL; /* Do not wait on this queue */
wq->status = status;
-
- if (atomic_dec_and_test(&wq->wait_ctr)) /* Is anyone still waiting for this guy? */
+ wake_up_interruptible(&wq->queue);
+ if (!--wq->wait_ctr)
kfree(wq);
- else
- wake_up_interruptible(&wq->queue);
+ mutex_unlock(&sbi->wq_mutex);
return 0;
}
#include <linux/namei.h>
#include <linux/mount.h>
#include <linux/syscalls.h>
+#include <linux/fs.h>
#include <asm/uaccess.h>
bm_entry_read(struct file * file, char __user * buf, size_t nbytes, loff_t *ppos)
{
Node *e = file->f_path.dentry->d_inode->i_private;
- loff_t pos = *ppos;
ssize_t res;
char *page;
- int len;
if (!(page = (char*) __get_free_page(GFP_KERNEL)))
return -ENOMEM;
entry_status(e, page);
- len = strlen(page);
- res = -EINVAL;
- if (pos < 0)
- goto out;
- res = 0;
- if (pos >= len)
- goto out;
- if (len < pos + nbytes)
- nbytes = len - pos;
- res = -EFAULT;
- if (copy_to_user(buf, page + pos, nbytes))
- goto out;
- *ppos = pos + nbytes;
- res = nbytes;
-out:
+ res = simple_read_from_buffer(buf, nbytes, ppos, page, strlen(page));
+
free_page((unsigned long) page);
return res;
}
{
if (sizeof ubuf->f_blocks == 4) {
- if ((kbuf->f_blocks | kbuf->f_bfree | kbuf->f_bavail) &
- 0xffffffff00000000ULL)
+ if ((kbuf->f_blocks | kbuf->f_bfree | kbuf->f_bavail |
+ kbuf->f_bsize | kbuf->f_frsize) & 0xffffffff00000000ULL)
return -EOVERFLOW;
/* f_files and f_ffree may be -1; it's okay
* to stuff that into 32 bits */
static int put_compat_statfs64(struct compat_statfs64 __user *ubuf, struct kstatfs *kbuf)
{
if (sizeof ubuf->f_blocks == 4) {
- if ((kbuf->f_blocks | kbuf->f_bfree | kbuf->f_bavail) &
- 0xffffffff00000000ULL)
+ if ((kbuf->f_blocks | kbuf->f_bfree | kbuf->f_bavail |
+ kbuf->f_bsize | kbuf->f_frsize) & 0xffffffff00000000ULL)
return -EOVERFLOW;
/* f_files and f_ffree may be -1; it's okay
* to stuff that into 32 bits */
#ifdef CONFIG_SIGNALFD
-asmlinkage long compat_sys_signalfd(int ufd,
- const compat_sigset_t __user *sigmask,
- compat_size_t sigsetsize)
+asmlinkage long compat_sys_signalfd4(int ufd,
+ const compat_sigset_t __user *sigmask,
+ compat_size_t sigsetsize, int flags)
{
compat_sigset_t ss32;
sigset_t tmp;
if (copy_to_user(ksigmask, &tmp, sizeof(sigset_t)))
return -EFAULT;
- return sys_signalfd(ufd, ksigmask, sizeof(sigset_t));
+ return sys_signalfd4(ufd, ksigmask, sizeof(sigset_t), flags);
}
+asmlinkage long compat_sys_signalfd(int ufd,
+ const compat_sigset_t __user *sigmask,
+ compat_size_t sigsetsize)
+{
+ return compat_sys_signalfd4(ufd, sigmask, sigsetsize, 0);
+}
#endif /* CONFIG_SIGNALFD */
#ifdef CONFIG_TIMERFD
COMPATIBLE_IOCTL(AUTOFS_IOC_EXPIRE)
COMPATIBLE_IOCTL(AUTOFS_IOC_EXPIRE_MULTI)
COMPATIBLE_IOCTL(AUTOFS_IOC_PROTOSUBVER)
-COMPATIBLE_IOCTL(AUTOFS_IOC_ASKREGHOST)
-COMPATIBLE_IOCTL(AUTOFS_IOC_TOGGLEREGHOST)
COMPATIBLE_IOCTL(AUTOFS_IOC_ASKUMOUNT)
/* Raw devices */
COMPATIBLE_IOCTL(RAW_SETBIND)
static unsigned int d_hash_mask __read_mostly;
static unsigned int d_hash_shift __read_mostly;
static struct hlist_head *dentry_hashtable __read_mostly;
-static LIST_HEAD(dentry_unused);
/* Statistics gathering. */
struct dentry_stat_t dentry_stat = {
call_rcu(&dentry->d_u.d_rcu, d_callback);
}
-static void dentry_lru_remove(struct dentry *dentry)
-{
- if (!list_empty(&dentry->d_lru)) {
- list_del_init(&dentry->d_lru);
- dentry_stat.nr_unused--;
- }
-}
-
/*
* Release the dentry's inode, using the filesystem
* d_iput() operation if defined.
}
}
+/*
+ * dentry_lru_(add|add_tail|del|del_init) must be called with dcache_lock held.
+ */
+static void dentry_lru_add(struct dentry *dentry)
+{
+ list_add(&dentry->d_lru, &dentry->d_sb->s_dentry_lru);
+ dentry->d_sb->s_nr_dentry_unused++;
+ dentry_stat.nr_unused++;
+}
+
+static void dentry_lru_add_tail(struct dentry *dentry)
+{
+ list_add_tail(&dentry->d_lru, &dentry->d_sb->s_dentry_lru);
+ dentry->d_sb->s_nr_dentry_unused++;
+ dentry_stat.nr_unused++;
+}
+
+static void dentry_lru_del(struct dentry *dentry)
+{
+ if (!list_empty(&dentry->d_lru)) {
+ list_del(&dentry->d_lru);
+ dentry->d_sb->s_nr_dentry_unused--;
+ dentry_stat.nr_unused--;
+ }
+}
+
+static void dentry_lru_del_init(struct dentry *dentry)
+{
+ if (likely(!list_empty(&dentry->d_lru))) {
+ list_del_init(&dentry->d_lru);
+ dentry->d_sb->s_nr_dentry_unused--;
+ dentry_stat.nr_unused--;
+ }
+}
+
/**
* d_kill - kill dentry and return parent
* @dentry: dentry to kill
goto kill_it;
if (list_empty(&dentry->d_lru)) {
dentry->d_flags |= DCACHE_REFERENCED;
- list_add(&dentry->d_lru, &dentry_unused);
- dentry_stat.nr_unused++;
+ dentry_lru_add(dentry);
}
spin_unlock(&dentry->d_lock);
spin_unlock(&dcache_lock);
unhash_it:
__d_drop(dentry);
kill_it:
- dentry_lru_remove(dentry);
+ /* if dentry was on the d_lru list delete it from there */
+ dentry_lru_del(dentry);
dentry = d_kill(dentry);
if (dentry)
goto repeat;
static inline struct dentry * __dget_locked(struct dentry *dentry)
{
atomic_inc(&dentry->d_count);
- dentry_lru_remove(dentry);
+ dentry_lru_del_init(dentry);
return dentry;
}
if (dentry->d_op && dentry->d_op->d_delete)
dentry->d_op->d_delete(dentry);
- dentry_lru_remove(dentry);
+ dentry_lru_del_init(dentry);
__d_drop(dentry);
dentry = d_kill(dentry);
spin_lock(&dcache_lock);
}
}
-/**
- * prune_dcache - shrink the dcache
- * @count: number of entries to try and free
- * @sb: if given, ignore dentries for other superblocks
- * which are being unmounted.
- *
- * Shrink the dcache. This is done when we need
- * more memory, or simply when we need to unmount
- * something (at which point we need to unuse
- * all dentries).
- *
- * This function may fail to free any resources if
- * all the dentries are in use.
+/*
+ * Shrink the dentry LRU on a given superblock.
+ * @sb : superblock to shrink dentry LRU.
+ * @count: If count is NULL, we prune all dentries on superblock.
+ * @flags: If flags is non-zero, we need to do special processing based on
+ * which flags are set. This means we don't need to maintain multiple
+ * similar copies of this loop.
*/
-
-static void prune_dcache(int count, struct super_block *sb)
+static void __shrink_dcache_sb(struct super_block *sb, int *count, int flags)
{
- spin_lock(&dcache_lock);
- for (; count ; count--) {
- struct dentry *dentry;
- struct list_head *tmp;
- struct rw_semaphore *s_umount;
-
- cond_resched_lock(&dcache_lock);
+ LIST_HEAD(referenced);
+ LIST_HEAD(tmp);
+ struct dentry *dentry;
+ int cnt = 0;
- tmp = dentry_unused.prev;
- if (sb) {
- /* Try to find a dentry for this sb, but don't try
- * too hard, if they aren't near the tail they will
- * be moved down again soon
+ BUG_ON(!sb);
+ BUG_ON((flags & DCACHE_REFERENCED) && count == NULL);
+ spin_lock(&dcache_lock);
+ if (count != NULL)
+ /* called from prune_dcache() and shrink_dcache_parent() */
+ cnt = *count;
+restart:
+ if (count == NULL)
+ list_splice_init(&sb->s_dentry_lru, &tmp);
+ else {
+ while (!list_empty(&sb->s_dentry_lru)) {
+ dentry = list_entry(sb->s_dentry_lru.prev,
+ struct dentry, d_lru);
+ BUG_ON(dentry->d_sb != sb);
+
+ spin_lock(&dentry->d_lock);
+ /*
+ * If we are honouring the DCACHE_REFERENCED flag and
+ * the dentry has this flag set, don't free it. Clear
+ * the flag and put it back on the LRU.
*/
- int skip = count;
- while (skip && tmp != &dentry_unused &&
- list_entry(tmp, struct dentry, d_lru)->d_sb != sb) {
- skip--;
- tmp = tmp->prev;
+ if ((flags & DCACHE_REFERENCED)
+ && (dentry->d_flags & DCACHE_REFERENCED)) {
+ dentry->d_flags &= ~DCACHE_REFERENCED;
+ list_move_tail(&dentry->d_lru, &referenced);
+ spin_unlock(&dentry->d_lock);
+ } else {
+ list_move_tail(&dentry->d_lru, &tmp);
+ spin_unlock(&dentry->d_lock);
+ cnt--;
+ if (!cnt)
+ break;
}
}
- if (tmp == &dentry_unused)
- break;
- list_del_init(tmp);
- prefetch(dentry_unused.prev);
- dentry_stat.nr_unused--;
- dentry = list_entry(tmp, struct dentry, d_lru);
-
- spin_lock(&dentry->d_lock);
+ }
+ while (!list_empty(&tmp)) {
+ dentry = list_entry(tmp.prev, struct dentry, d_lru);
+ dentry_lru_del_init(dentry);
+ spin_lock(&dentry->d_lock);
/*
* We found an inuse dentry which was not removed from
- * dentry_unused because of laziness during lookup. Do not free
- * it - just keep it off the dentry_unused list.
+ * the LRU because of laziness during lookup. Do not free
+ * it - just keep it off the LRU list.
*/
- if (atomic_read(&dentry->d_count)) {
- spin_unlock(&dentry->d_lock);
+ if (atomic_read(&dentry->d_count)) {
+ spin_unlock(&dentry->d_lock);
continue;
}
- /* If the dentry was recently referenced, don't free it. */
- if (dentry->d_flags & DCACHE_REFERENCED) {
- dentry->d_flags &= ~DCACHE_REFERENCED;
- list_add(&dentry->d_lru, &dentry_unused);
- dentry_stat.nr_unused++;
- spin_unlock(&dentry->d_lock);
+ prune_one_dentry(dentry);
+ /* dentry->d_lock was dropped in prune_one_dentry() */
+ cond_resched_lock(&dcache_lock);
+ }
+ if (count == NULL && !list_empty(&sb->s_dentry_lru))
+ goto restart;
+ if (count != NULL)
+ *count = cnt;
+ if (!list_empty(&referenced))
+ list_splice(&referenced, &sb->s_dentry_lru);
+ spin_unlock(&dcache_lock);
+}
+
+/**
+ * prune_dcache - shrink the dcache
+ * @count: number of entries to try to free
+ *
+ * Shrink the dcache. This is done when we need more memory, or simply when we
+ * need to unmount something (at which point we need to unuse all dentries).
+ *
+ * This function may fail to free any resources if all the dentries are in use.
+ */
+static void prune_dcache(int count)
+{
+ struct super_block *sb;
+ int w_count;
+ int unused = dentry_stat.nr_unused;
+ int prune_ratio;
+ int pruned;
+
+ if (unused == 0 || count == 0)
+ return;
+ spin_lock(&dcache_lock);
+restart:
+ if (count >= unused)
+ prune_ratio = 1;
+ else
+ prune_ratio = unused / count;
+ spin_lock(&sb_lock);
+ list_for_each_entry(sb, &super_blocks, s_list) {
+ if (sb->s_nr_dentry_unused == 0)
continue;
- }
- /*
- * If the dentry is not DCACHED_REFERENCED, it is time
- * to remove it from the dcache, provided the super block is
- * NULL (which means we are trying to reclaim memory)
- * or this dentry belongs to the same super block that
- * we want to shrink.
- */
- /*
- * If this dentry is for "my" filesystem, then I can prune it
- * without taking the s_umount lock (I already hold it).
+ sb->s_count++;
+ /* Now, we reclaim unused dentrins with fairness.
+ * We reclaim them same percentage from each superblock.
+ * We calculate number of dentries to scan on this sb
+ * as follows, but the implementation is arranged to avoid
+ * overflows:
+ * number of dentries to scan on this sb =
+ * count * (number of dentries on this sb /
+ * number of dentries in the machine)
*/
- if (sb && dentry->d_sb == sb) {
- prune_one_dentry(dentry);
- continue;
- }
+ spin_unlock(&sb_lock);
+ if (prune_ratio != 1)
+ w_count = (sb->s_nr_dentry_unused / prune_ratio) + 1;
+ else
+ w_count = sb->s_nr_dentry_unused;
+ pruned = w_count;
/*
- * ...otherwise we need to be sure this filesystem isn't being
- * unmounted, otherwise we could race with
- * generic_shutdown_super(), and end up holding a reference to
- * an inode while the filesystem is unmounted.
- * So we try to get s_umount, and make sure s_root isn't NULL.
- * (Take a local copy of s_umount to avoid a use-after-free of
- * `dentry').
+ * We need to be sure this filesystem isn't being unmounted,
+ * otherwise we could race with generic_shutdown_super(), and
+ * end up holding a reference to an inode while the filesystem
+ * is unmounted. So we try to get s_umount, and make sure
+ * s_root isn't NULL.
*/
- s_umount = &dentry->d_sb->s_umount;
- if (down_read_trylock(s_umount)) {
- if (dentry->d_sb->s_root != NULL) {
- prune_one_dentry(dentry);
- up_read(s_umount);
- continue;
+ if (down_read_trylock(&sb->s_umount)) {
+ if ((sb->s_root != NULL) &&
+ (!list_empty(&sb->s_dentry_lru))) {
+ spin_unlock(&dcache_lock);
+ __shrink_dcache_sb(sb, &w_count,
+ DCACHE_REFERENCED);
+ pruned -= w_count;
+ spin_lock(&dcache_lock);
}
- up_read(s_umount);
+ up_read(&sb->s_umount);
}
- spin_unlock(&dentry->d_lock);
+ spin_lock(&sb_lock);
+ count -= pruned;
/*
- * Insert dentry at the head of the list as inserting at the
- * tail leads to a cycle.
+ * restart only when sb is no longer on the list and
+ * we have more work to do.
*/
- list_add(&dentry->d_lru, &dentry_unused);
- dentry_stat.nr_unused++;
+ if (__put_super_and_need_restart(sb) && count > 0) {
+ spin_unlock(&sb_lock);
+ goto restart;
+ }
}
+ spin_unlock(&sb_lock);
spin_unlock(&dcache_lock);
}
-/*
- * Shrink the dcache for the specified super block.
- * This allows us to unmount a device without disturbing
- * the dcache for the other devices.
- *
- * This implementation makes just two traversals of the
- * unused list. On the first pass we move the selected
- * dentries to the most recent end, and on the second
- * pass we free them. The second pass must restart after
- * each dput(), but since the target dentries are all at
- * the end, it's really just a single traversal.
- */
-
/**
* shrink_dcache_sb - shrink dcache for a superblock
* @sb: superblock
* is used to free the dcache before unmounting a file
* system
*/
-
void shrink_dcache_sb(struct super_block * sb)
{
- struct list_head *tmp, *next;
- struct dentry *dentry;
-
- /*
- * Pass one ... move the dentries for the specified
- * superblock to the most recent end of the unused list.
- */
- spin_lock(&dcache_lock);
- list_for_each_prev_safe(tmp, next, &dentry_unused) {
- dentry = list_entry(tmp, struct dentry, d_lru);
- if (dentry->d_sb != sb)
- continue;
- list_move_tail(tmp, &dentry_unused);
- }
-
- /*
- * Pass two ... free the dentries for this superblock.
- */
-repeat:
- list_for_each_prev_safe(tmp, next, &dentry_unused) {
- dentry = list_entry(tmp, struct dentry, d_lru);
- if (dentry->d_sb != sb)
- continue;
- dentry_stat.nr_unused--;
- list_del_init(tmp);
- spin_lock(&dentry->d_lock);
- if (atomic_read(&dentry->d_count)) {
- spin_unlock(&dentry->d_lock);
- continue;
- }
- prune_one_dentry(dentry);
- cond_resched_lock(&dcache_lock);
- goto repeat;
- }
- spin_unlock(&dcache_lock);
+ __shrink_dcache_sb(sb, NULL, 0);
}
/*
/* detach this root from the system */
spin_lock(&dcache_lock);
- dentry_lru_remove(dentry);
+ dentry_lru_del_init(dentry);
__d_drop(dentry);
spin_unlock(&dcache_lock);
spin_lock(&dcache_lock);
list_for_each_entry(loop, &dentry->d_subdirs,
d_u.d_child) {
- dentry_lru_remove(loop);
+ dentry_lru_del_init(loop);
__d_drop(loop);
cond_resched_lock(&dcache_lock);
}
struct dentry *dentry = list_entry(tmp, struct dentry, d_u.d_child);
next = tmp->next;
- dentry_lru_remove(dentry);
+ dentry_lru_del_init(dentry);
/*
* move only zero ref count dentries to the end
* of the unused list for prune_dcache
*/
if (!atomic_read(&dentry->d_count)) {
- list_add_tail(&dentry->d_lru, &dentry_unused);
- dentry_stat.nr_unused++;
+ dentry_lru_add_tail(dentry);
found++;
}
void shrink_dcache_parent(struct dentry * parent)
{
+ struct super_block *sb = parent->d_sb;
int found;
while ((found = select_parent(parent)) != 0)
- prune_dcache(found, parent->d_sb);
+ __shrink_dcache_sb(sb, &found, 0);
}
/*
if (nr) {
if (!(gfp_mask & __GFP_FS))
return -1;
- prune_dcache(nr, NULL);
+ prune_dcache(nr);
}
return (dentry_stat.nr_unused / 100) * sysctl_vfs_cache_pressure;
}
* rcu_read_lock() and rcu_read_unlock() are used to disable preemption while
* lookup is going on.
*
- * dentry_unused list is not updated even if lookup finds the required dentry
+ * The dentry unused LRU is not updated even if lookup finds the required dentry
* in there. It is updated in places such as prune_dcache, shrink_dcache_sb,
* select_parent and __dget_locked. This laziness saves lookup from dcache_lock
* acquisition.
obj-$(CONFIG_ECRYPT_FS) += ecryptfs.o
-ecryptfs-objs := dentry.o file.o inode.o main.o super.o mmap.o read_write.o crypto.o keystore.o messaging.o netlink.o miscdev.o debug.o
+ecryptfs-objs := dentry.o file.o inode.o main.o super.o mmap.o read_write.o crypto.o keystore.o messaging.o netlink.o miscdev.o kthread.o debug.o
#include <linux/crypto.h>
#include <linux/file.h>
#include <linux/scatterlist.h>
+#include <asm/unaligned.h>
#include "ecryptfs_kernel.h"
static int
{
u32 m_1, m_2;
- memcpy(&m_1, data, 4);
- m_1 = be32_to_cpu(m_1);
- memcpy(&m_2, (data + 4), 4);
- m_2 = be32_to_cpu(m_2);
+ m_1 = get_unaligned_be32(data);
+ m_2 = get_unaligned_be32(data + 4);
if ((m_1 ^ MAGIC_ECRYPTFS_MARKER) == m_2)
return 1;
ecryptfs_printk(KERN_DEBUG, "m_1 = [0x%.8x]; m_2 = [0x%.8x]; "
int i;
u32 flags;
- memcpy(&flags, page_virt, 4);
- flags = be32_to_cpu(flags);
+ flags = get_unaligned_be32(page_virt);
for (i = 0; i < ((sizeof(ecryptfs_flag_map)
/ sizeof(struct ecryptfs_flag_map_elem))); i++)
if (flags & ecryptfs_flag_map[i].file_flag) {
get_random_bytes(&m_1, (MAGIC_ECRYPTFS_MARKER_SIZE_BYTES / 2));
m_2 = (m_1 ^ MAGIC_ECRYPTFS_MARKER);
- m_1 = cpu_to_be32(m_1);
- memcpy(page_virt, &m_1, (MAGIC_ECRYPTFS_MARKER_SIZE_BYTES / 2));
- m_2 = cpu_to_be32(m_2);
- memcpy(page_virt + (MAGIC_ECRYPTFS_MARKER_SIZE_BYTES / 2), &m_2,
- (MAGIC_ECRYPTFS_MARKER_SIZE_BYTES / 2));
+ put_unaligned_be32(m_1, page_virt);
+ page_virt += (MAGIC_ECRYPTFS_MARKER_SIZE_BYTES / 2);
+ put_unaligned_be32(m_2, page_virt);
(*written) = MAGIC_ECRYPTFS_MARKER_SIZE_BYTES;
}
flags |= ecryptfs_flag_map[i].file_flag;
/* Version is in top 8 bits of the 32-bit flag vector */
flags |= ((((u8)crypt_stat->file_version) << 24) & 0xFF000000);
- flags = cpu_to_be32(flags);
- memcpy(page_virt, &flags, 4);
+ put_unaligned_be32(flags, page_virt);
(*written) = 4;
}
num_header_extents_at_front =
(u16)(crypt_stat->num_header_bytes_at_front
/ crypt_stat->extent_size);
- header_extent_size = cpu_to_be32(header_extent_size);
- memcpy(virt, &header_extent_size, 4);
+ put_unaligned_be32(header_extent_size, virt);
virt += 4;
- num_header_extents_at_front = cpu_to_be16(num_header_extents_at_front);
- memcpy(virt, &num_header_extents_at_front, 2);
+ put_unaligned_be16(num_header_extents_at_front, virt);
(*written) = 6;
}
u32 header_extent_size;
u16 num_header_extents_at_front;
- memcpy(&header_extent_size, virt, sizeof(u32));
- header_extent_size = be32_to_cpu(header_extent_size);
- virt += sizeof(u32);
- memcpy(&num_header_extents_at_front, virt, sizeof(u16));
- num_header_extents_at_front = be16_to_cpu(num_header_extents_at_front);
+ header_extent_size = get_unaligned_be32(virt);
+ virt += sizeof(__be32);
+ num_header_extents_at_front = get_unaligned_be16(virt);
crypt_stat->num_header_bytes_at_front =
(((size_t)num_header_extents_at_front
* (size_t)header_extent_size));
- (*bytes_read) = (sizeof(u32) + sizeof(u16));
+ (*bytes_read) = (sizeof(__be32) + sizeof(__be16));
if ((validate_header_size == ECRYPTFS_VALIDATE_HEADER_SIZE)
&& (crypt_stat->num_header_bytes_at_front
< ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE)) {
extern struct kmem_cache *ecryptfs_key_sig_cache;
extern struct kmem_cache *ecryptfs_global_auth_tok_cache;
extern struct kmem_cache *ecryptfs_key_tfm_cache;
+extern struct kmem_cache *ecryptfs_open_req_cache;
+struct ecryptfs_open_req {
+#define ECRYPTFS_REQ_PROCESSED 0x00000001
+#define ECRYPTFS_REQ_DROPPED 0x00000002
+#define ECRYPTFS_REQ_ZOMBIE 0x00000004
+ u32 flags;
+ struct file **lower_file;
+ struct dentry *lower_dentry;
+ struct vfsmount *lower_mnt;
+ wait_queue_head_t wait;
+ struct mutex mux;
+ struct list_head kthread_ctl_list;
+};
+
+#define ECRYPTFS_INTERPOSE_FLAG_D_ADD 0x00000001
int ecryptfs_interpose(struct dentry *hidden_dentry,
struct dentry *this_dentry, struct super_block *sb,
- int flag);
+ u32 flags);
int ecryptfs_fill_zeros(struct file *file, loff_t new_length);
int ecryptfs_decode_filename(struct ecryptfs_crypt_stat *crypt_stat,
const char *name, int length,
int
ecryptfs_spawn_daemon(struct ecryptfs_daemon **daemon, uid_t euid,
struct user_namespace *user_ns, struct pid *pid);
+int ecryptfs_init_kthread(void);
+void ecryptfs_destroy_kthread(void);
+int ecryptfs_privileged_open(struct file **lower_file,
+ struct dentry *lower_dentry,
+ struct vfsmount *lower_mnt);
+int ecryptfs_init_persistent_file(struct dentry *ecryptfs_dentry);
#endif /* #ifndef ECRYPTFS_KERNEL_H */
| ECRYPTFS_ENCRYPTED);
}
mutex_unlock(&crypt_stat->cs_mutex);
+ if ((ecryptfs_inode_to_private(inode)->lower_file->f_flags & O_RDONLY)
+ && !(file->f_flags & O_RDONLY)) {
+ rc = -EPERM;
+ printk(KERN_WARNING "%s: Lower persistent file is RO; eCryptfs "
+ "file must hence be opened RO\n", __func__);
+ goto out;
+ }
+ if (!ecryptfs_inode_to_private(inode)->lower_file) {
+ rc = ecryptfs_init_persistent_file(ecryptfs_dentry);
+ if (rc) {
+ printk(KERN_ERR "%s: Error attempting to initialize "
+ "the persistent file for the dentry with name "
+ "[%s]; rc = [%d]\n", __func__,
+ ecryptfs_dentry->d_name.name, rc);
+ goto out;
+ }
+ }
ecryptfs_set_file_lower(
file, ecryptfs_inode_to_private(inode)->lower_file);
if (S_ISDIR(ecryptfs_dentry->d_inode->i_mode)) {
#include <linux/mount.h>
#include <linux/crypto.h>
#include <linux/fs_stack.h>
+#include <asm/unaligned.h>
#include "ecryptfs_kernel.h"
static struct dentry *lock_parent(struct dentry *dentry)
"context; rc = [%d]\n", rc);
goto out;
}
+ if (!ecryptfs_inode_to_private(ecryptfs_dentry->d_inode)->lower_file) {
+ rc = ecryptfs_init_persistent_file(ecryptfs_dentry);
+ if (rc) {
+ printk(KERN_ERR "%s: Error attempting to initialize "
+ "the persistent file for the dentry with name "
+ "[%s]; rc = [%d]\n", __func__,
+ ecryptfs_dentry->d_name.name, rc);
+ goto out;
+ }
+ }
rc = ecryptfs_write_metadata(ecryptfs_dentry);
if (rc) {
printk(KERN_ERR "Error writing headers; rc = [%d]\n", rc);
d_add(dentry, NULL);
goto out;
}
- rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb, 1);
+ rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb,
+ ECRYPTFS_INTERPOSE_FLAG_D_ADD);
if (rc) {
ecryptfs_printk(KERN_ERR, "Error interposing\n");
- goto out_dput;
+ goto out;
}
if (S_ISDIR(lower_inode->i_mode)) {
ecryptfs_printk(KERN_DEBUG, "Is a directory; returning\n");
rc = -ENOMEM;
ecryptfs_printk(KERN_ERR,
"Cannot ecryptfs_kmalloc a page\n");
- goto out_dput;
+ goto out;
}
crypt_stat = &ecryptfs_inode_to_private(dentry->d_inode)->crypt_stat;
if (!(crypt_stat->flags & ECRYPTFS_POLICY_APPLIED))
ecryptfs_set_default_sizes(crypt_stat);
+ if (!ecryptfs_inode_to_private(dentry->d_inode)->lower_file) {
+ rc = ecryptfs_init_persistent_file(dentry);
+ if (rc) {
+ printk(KERN_ERR "%s: Error attempting to initialize "
+ "the persistent file for the dentry with name "
+ "[%s]; rc = [%d]\n", __func__,
+ dentry->d_name.name, rc);
+ goto out;
+ }
+ }
rc = ecryptfs_read_and_validate_header_region(page_virt,
dentry->d_inode);
if (rc) {
else
file_size = i_size_read(lower_dentry->d_inode);
} else {
- memcpy(&file_size, page_virt, sizeof(file_size));
- file_size = be64_to_cpu(file_size);
+ file_size = get_unaligned_be64(page_virt);
}
i_size_write(dentry->d_inode, (loff_t)file_size);
kmem_cache_free(ecryptfs_header_cache_2, page_virt);
int rc = 0;
switch (err_code) {
- case ENOKEY:
+ case -ENOKEY:
ecryptfs_printk(KERN_WARNING, "No key\n");
rc = -ENOENT;
break;
- case EKEYEXPIRED:
+ case -EKEYEXPIRED:
ecryptfs_printk(KERN_WARNING, "Key expired\n");
rc = -ETIME;
break;
- case EKEYREVOKED:
+ case -EKEYREVOKED:
ecryptfs_printk(KERN_WARNING, "Key revoked\n");
rc = -EINVAL;
break;
if (!(*auth_tok_key) || IS_ERR(*auth_tok_key)) {
printk(KERN_ERR "Could not find key with description: [%s]\n",
sig);
- process_request_key_err(PTR_ERR(*auth_tok_key));
- rc = -EINVAL;
+ rc = process_request_key_err(PTR_ERR(*auth_tok_key));
goto out;
}
(*auth_tok) = ecryptfs_get_key_payload_data(*auth_tok_key);
--- /dev/null
+/**
+ * eCryptfs: Linux filesystem encryption layer
+ *
+ * Copyright (C) 2008 International Business Machines Corp.
+ * Author(s): Michael A. Halcrow <mahalcro@us.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#include <linux/kthread.h>
+#include <linux/freezer.h>
+#include <linux/wait.h>
+#include <linux/mount.h>
+#include "ecryptfs_kernel.h"
+
+struct kmem_cache *ecryptfs_open_req_cache;
+
+static struct ecryptfs_kthread_ctl {
+#define ECRYPTFS_KTHREAD_ZOMBIE 0x00000001
+ u32 flags;
+ struct mutex mux;
+ struct list_head req_list;
+ wait_queue_head_t wait;
+} ecryptfs_kthread_ctl;
+
+static struct task_struct *ecryptfs_kthread;
+
+/**
+ * ecryptfs_threadfn
+ * @ignored: ignored
+ *
+ * The eCryptfs kernel thread that has the responsibility of getting
+ * the lower persistent file with RW permissions.
+ *
+ * Returns zero on success; non-zero otherwise
+ */
+static int ecryptfs_threadfn(void *ignored)
+{
+ set_freezable();
+ while (1) {
+ struct ecryptfs_open_req *req;
+
+ wait_event_freezable(
+ ecryptfs_kthread_ctl.wait,
+ (!list_empty(&ecryptfs_kthread_ctl.req_list)
+ || kthread_should_stop()));
+ mutex_lock(&ecryptfs_kthread_ctl.mux);
+ if (ecryptfs_kthread_ctl.flags & ECRYPTFS_KTHREAD_ZOMBIE) {
+ mutex_unlock(&ecryptfs_kthread_ctl.mux);
+ goto out;
+ }
+ while (!list_empty(&ecryptfs_kthread_ctl.req_list)) {
+ req = list_first_entry(&ecryptfs_kthread_ctl.req_list,
+ struct ecryptfs_open_req,
+ kthread_ctl_list);
+ mutex_lock(&req->mux);
+ list_del(&req->kthread_ctl_list);
+ if (!(req->flags & ECRYPTFS_REQ_ZOMBIE)) {
+ dget(req->lower_dentry);
+ mntget(req->lower_mnt);
+ (*req->lower_file) = dentry_open(
+ req->lower_dentry, req->lower_mnt,
+ (O_RDWR | O_LARGEFILE));
+ req->flags |= ECRYPTFS_REQ_PROCESSED;
+ }
+ wake_up(&req->wait);
+ mutex_unlock(&req->mux);
+ }
+ mutex_unlock(&ecryptfs_kthread_ctl.mux);
+ }
+out:
+ return 0;
+}
+
+int ecryptfs_init_kthread(void)
+{
+ int rc = 0;
+
+ mutex_init(&ecryptfs_kthread_ctl.mux);
+ init_waitqueue_head(&ecryptfs_kthread_ctl.wait);
+ INIT_LIST_HEAD(&ecryptfs_kthread_ctl.req_list);
+ ecryptfs_kthread = kthread_run(&ecryptfs_threadfn, NULL,
+ "ecryptfs-kthread");
+ if (IS_ERR(ecryptfs_kthread)) {
+ rc = PTR_ERR(ecryptfs_kthread);
+ printk(KERN_ERR "%s: Failed to create kernel thread; rc = [%d]"
+ "\n", __func__, rc);
+ }
+ return rc;
+}
+
+void ecryptfs_destroy_kthread(void)
+{
+ struct ecryptfs_open_req *req;
+
+ mutex_lock(&ecryptfs_kthread_ctl.mux);
+ ecryptfs_kthread_ctl.flags |= ECRYPTFS_KTHREAD_ZOMBIE;
+ list_for_each_entry(req, &ecryptfs_kthread_ctl.req_list,
+ kthread_ctl_list) {
+ mutex_lock(&req->mux);
+ req->flags |= ECRYPTFS_REQ_ZOMBIE;
+ wake_up(&req->wait);
+ mutex_unlock(&req->mux);
+ }
+ mutex_unlock(&ecryptfs_kthread_ctl.mux);
+ kthread_stop(ecryptfs_kthread);
+ wake_up(&ecryptfs_kthread_ctl.wait);
+}
+
+/**
+ * ecryptfs_privileged_open
+ * @lower_file: Result of dentry_open by root on lower dentry
+ * @lower_dentry: Lower dentry for file to open
+ * @lower_mnt: Lower vfsmount for file to open
+ *
+ * This function gets a r/w file opened againt the lower dentry.
+ *
+ * Returns zero on success; non-zero otherwise
+ */
+int ecryptfs_privileged_open(struct file **lower_file,
+ struct dentry *lower_dentry,
+ struct vfsmount *lower_mnt)
+{
+ struct ecryptfs_open_req *req;
+ int rc = 0;
+
+ /* Corresponding dput() and mntput() are done when the
+ * persistent file is fput() when the eCryptfs inode is
+ * destroyed. */
+ dget(lower_dentry);
+ mntget(lower_mnt);
+ (*lower_file) = dentry_open(lower_dentry, lower_mnt,
+ (O_RDWR | O_LARGEFILE));
+ if (!IS_ERR(*lower_file))
+ goto out;
+ req = kmem_cache_alloc(ecryptfs_open_req_cache, GFP_KERNEL);
+ if (!req) {
+ rc = -ENOMEM;
+ goto out;
+ }
+ mutex_init(&req->mux);
+ req->lower_file = lower_file;
+ req->lower_dentry = lower_dentry;
+ req->lower_mnt = lower_mnt;
+ init_waitqueue_head(&req->wait);
+ req->flags = 0;
+ mutex_lock(&ecryptfs_kthread_ctl.mux);
+ if (ecryptfs_kthread_ctl.flags & ECRYPTFS_KTHREAD_ZOMBIE) {
+ rc = -EIO;
+ mutex_unlock(&ecryptfs_kthread_ctl.mux);
+ printk(KERN_ERR "%s: We are in the middle of shutting down; "
+ "aborting privileged request to open lower file\n",
+ __func__);
+ goto out_free;
+ }
+ list_add_tail(&req->kthread_ctl_list, &ecryptfs_kthread_ctl.req_list);
+ mutex_unlock(&ecryptfs_kthread_ctl.mux);
+ wake_up(&ecryptfs_kthread_ctl.wait);
+ wait_event(req->wait, (req->flags != 0));
+ mutex_lock(&req->mux);
+ BUG_ON(req->flags == 0);
+ if (req->flags & ECRYPTFS_REQ_DROPPED
+ || req->flags & ECRYPTFS_REQ_ZOMBIE) {
+ rc = -EIO;
+ printk(KERN_WARNING "%s: Privileged open request dropped\n",
+ __func__);
+ goto out_unlock;
+ }
+ if (IS_ERR(*req->lower_file)) {
+ rc = PTR_ERR(*req->lower_file);
+ dget(lower_dentry);
+ mntget(lower_mnt);
+ (*lower_file) = dentry_open(lower_dentry, lower_mnt,
+ (O_RDONLY | O_LARGEFILE));
+ if (IS_ERR(*lower_file)) {
+ rc = PTR_ERR(*req->lower_file);
+ (*lower_file) = NULL;
+ printk(KERN_WARNING "%s: Error attempting privileged "
+ "open of lower file with either RW or RO "
+ "perms; rc = [%d]. Giving up.\n",
+ __func__, rc);
+ }
+ }
+out_unlock:
+ mutex_unlock(&req->mux);
+out_free:
+ kmem_cache_free(ecryptfs_open_req_cache, req);
+out:
+ return rc;
+}
*
* Returns zero on success; non-zero otherwise
*/
-static int ecryptfs_init_persistent_file(struct dentry *ecryptfs_dentry)
+int ecryptfs_init_persistent_file(struct dentry *ecryptfs_dentry)
{
struct ecryptfs_inode_info *inode_info =
ecryptfs_inode_to_private(ecryptfs_dentry->d_inode);
ecryptfs_dentry_to_lower_mnt(ecryptfs_dentry);
lower_dentry = ecryptfs_dentry_to_lower(ecryptfs_dentry);
- /* Corresponding dput() and mntput() are done when the
- * persistent file is fput() when the eCryptfs inode
- * is destroyed. */
- dget(lower_dentry);
- mntget(lower_mnt);
- inode_info->lower_file = dentry_open(lower_dentry,
- lower_mnt,
- (O_RDWR | O_LARGEFILE));
- if (IS_ERR(inode_info->lower_file)) {
- dget(lower_dentry);
- mntget(lower_mnt);
- inode_info->lower_file = dentry_open(lower_dentry,
- lower_mnt,
- (O_RDONLY
- | O_LARGEFILE));
- }
- if (IS_ERR(inode_info->lower_file)) {
+ rc = ecryptfs_privileged_open(&inode_info->lower_file,
+ lower_dentry, lower_mnt);
+ if (rc || IS_ERR(inode_info->lower_file)) {
printk(KERN_ERR "Error opening lower persistent file "
- "for lower_dentry [0x%p] and lower_mnt [0x%p]\n",
- lower_dentry, lower_mnt);
+ "for lower_dentry [0x%p] and lower_mnt [0x%p]; "
+ "rc = [%d]\n", lower_dentry, lower_mnt, rc);
rc = PTR_ERR(inode_info->lower_file);
inode_info->lower_file = NULL;
}
* @lower_dentry: Existing dentry in the lower filesystem
* @dentry: ecryptfs' dentry
* @sb: ecryptfs's super_block
- * @flag: If set to true, then d_add is called, else d_instantiate is called
+ * @flags: flags to govern behavior of interpose procedure
*
* Interposes upper and lower dentries.
*
* Returns zero on success; non-zero otherwise
*/
int ecryptfs_interpose(struct dentry *lower_dentry, struct dentry *dentry,
- struct super_block *sb, int flag)
+ struct super_block *sb, u32 flags)
{
struct inode *lower_inode;
struct inode *inode;
init_special_inode(inode, lower_inode->i_mode,
lower_inode->i_rdev);
dentry->d_op = &ecryptfs_dops;
- if (flag)
+ if (flags & ECRYPTFS_INTERPOSE_FLAG_D_ADD)
d_add(dentry, inode);
else
d_instantiate(dentry, inode);
/* This size will be overwritten for real files w/ headers and
* other metadata */
fsstack_copy_inode_size(inode, lower_inode);
- rc = ecryptfs_init_persistent_file(dentry);
- if (rc) {
- printk(KERN_ERR "%s: Error attempting to initialize the "
- "persistent file for the dentry with name [%s]; "
- "rc = [%d]\n", __func__, dentry->d_name.name, rc);
- goto out;
- }
out:
return rc;
}
"session keyring for sig specified in mount "
"option: [%s]\n", global_auth_tok->sig);
global_auth_tok->flags |= ECRYPTFS_AUTH_TOK_INVALID;
- rc = 0;
+ goto out;
} else
global_auth_tok->flags &= ~ECRYPTFS_AUTH_TOK_INVALID;
}
+out:
return rc;
}
char *cipher_name_dst;
char *cipher_name_src;
char *cipher_key_bytes_src;
- int cipher_name_len;
if (!options) {
rc = -EINVAL;
goto out;
}
if (!cipher_name_set) {
- cipher_name_len = strlen(ECRYPTFS_DEFAULT_CIPHER);
- if (unlikely(cipher_name_len
- >= ECRYPTFS_MAX_CIPHER_NAME_SIZE)) {
- rc = -EINVAL;
- BUG();
- goto out;
- }
- memcpy(mount_crypt_stat->global_default_cipher_name,
- ECRYPTFS_DEFAULT_CIPHER, cipher_name_len);
- mount_crypt_stat->global_default_cipher_name[cipher_name_len]
- = '\0';
+ int cipher_name_len = strlen(ECRYPTFS_DEFAULT_CIPHER);
+
+ BUG_ON(cipher_name_len >= ECRYPTFS_MAX_CIPHER_NAME_SIZE);
+
+ strcpy(mount_crypt_stat->global_default_cipher_name,
+ ECRYPTFS_DEFAULT_CIPHER);
}
if (!cipher_key_bytes_set) {
mount_crypt_stat->global_default_cipher_key_size = 0;
printk(KERN_WARNING "One or more global auth toks could not "
"properly register; rc = [%d]\n", rc);
}
- rc = 0;
out:
return rc;
}
.name = "ecryptfs_key_tfm_cache",
.size = sizeof(struct ecryptfs_key_tfm),
},
+ {
+ .cache = &ecryptfs_open_req_cache,
+ .name = "ecryptfs_open_req_cache",
+ .size = sizeof(struct ecryptfs_open_req),
+ },
};
static void ecryptfs_free_kmem_caches(void)
printk(KERN_ERR "sysfs registration failed\n");
goto out_unregister_filesystem;
}
+ rc = ecryptfs_init_kthread();
+ if (rc) {
+ printk(KERN_ERR "%s: kthread initialization failed; "
+ "rc = [%d]\n", __func__, rc);
+ goto out_do_sysfs_unregistration;
+ }
rc = ecryptfs_init_messaging(ecryptfs_transport);
if (rc) {
- ecryptfs_printk(KERN_ERR, "Failure occured while attempting to "
+ printk(KERN_ERR "Failure occured while attempting to "
"initialize the eCryptfs netlink socket\n");
- goto out_do_sysfs_unregistration;
+ goto out_destroy_kthread;
}
rc = ecryptfs_init_crypto();
if (rc) {
goto out;
out_release_messaging:
ecryptfs_release_messaging(ecryptfs_transport);
+out_destroy_kthread:
+ ecryptfs_destroy_kthread();
out_do_sysfs_unregistration:
do_sysfs_unregistration();
out_unregister_filesystem:
printk(KERN_ERR "Failure whilst attempting to destroy crypto; "
"rc = [%d]\n", rc);
ecryptfs_release_messaging(ecryptfs_transport);
+ ecryptfs_destroy_kthread();
do_sysfs_unregistration();
unregister_filesystem(&ecryptfs_fs_type);
ecryptfs_free_kmem_caches();
return rc;
}
-/**
- * ecryptfs_miscdev_helo
- * @euid: effective user id of miscdevess sending helo packet
- * @user_ns: The namespace in which @euid applies
- * @pid: miscdevess id of miscdevess sending helo packet
- *
- * Returns zero on success; non-zero otherwise
- */
-static int ecryptfs_miscdev_helo(uid_t euid, struct user_namespace *user_ns,
- struct pid *pid)
-{
- int rc;
-
- rc = ecryptfs_process_helo(ECRYPTFS_TRANSPORT_MISCDEV, euid, user_ns,
- pid);
- if (rc)
- printk(KERN_WARNING "Error processing HELO; rc = [%d]\n", rc);
- return rc;
-}
-
-/**
- * ecryptfs_miscdev_quit
- * @euid: effective user id of miscdevess sending quit packet
- * @user_ns: The namespace in which @euid applies
- * @pid: miscdevess id of miscdevess sending quit packet
- *
- * Returns zero on success; non-zero otherwise
- */
-static int ecryptfs_miscdev_quit(uid_t euid, struct user_namespace *user_ns,
- struct pid *pid)
-{
- int rc;
-
- rc = ecryptfs_process_quit(euid, user_ns, pid);
- if (rc)
- printk(KERN_WARNING
- "Error processing QUIT message; rc = [%d]\n", rc);
- return rc;
-}
-
/**
* ecryptfs_miscdev_response - miscdevess response to message previously sent to daemon
* @data: Bytes comprising struct ecryptfs_message
__func__, rc);
break;
case ECRYPTFS_MSG_HELO:
- rc = ecryptfs_miscdev_helo(current->euid,
- current->nsproxy->user_ns,
- task_pid(current));
- if (rc) {
- printk(KERN_ERR "%s: Error attempting to process "
- "helo from pid [0x%p]; rc = [%d]\n", __func__,
- task_pid(current), rc);
- goto out_free;
- }
- break;
case ECRYPTFS_MSG_QUIT:
- rc = ecryptfs_miscdev_quit(current->euid,
- current->nsproxy->user_ns,
- task_pid(current));
- if (rc) {
- printk(KERN_ERR "%s: Error attempting to process "
- "quit from pid [0x%p]; rc = [%d]\n", __func__,
- task_pid(current), rc);
- goto out_free;
- }
break;
default:
ecryptfs_printk(KERN_WARNING, "Dropping miscdev "
#include <linux/file.h>
#include <linux/crypto.h>
#include <linux/scatterlist.h>
+#include <asm/unaligned.h>
#include "ecryptfs_kernel.h"
/**
*/
static int ecryptfs_write_inode_size_to_header(struct inode *ecryptfs_inode)
{
- u64 file_size;
char *file_size_virt;
int rc;
rc = -ENOMEM;
goto out;
}
- file_size = (u64)i_size_read(ecryptfs_inode);
- file_size = cpu_to_be64(file_size);
- memcpy(file_size_virt, &file_size, sizeof(u64));
+ put_unaligned_be64(i_size_read(ecryptfs_inode), file_size_virt);
rc = ecryptfs_write_lower(ecryptfs_inode, file_size_virt, 0,
sizeof(u64));
kfree(file_size_virt);
struct dentry *lower_dentry =
ecryptfs_inode_to_private(ecryptfs_inode)->lower_file->f_dentry;
struct inode *lower_inode = lower_dentry->d_inode;
- u64 file_size;
int rc;
if (!lower_inode->i_op->getxattr || !lower_inode->i_op->setxattr) {
xattr_virt, PAGE_CACHE_SIZE);
if (size < 0)
size = 8;
- file_size = (u64)i_size_read(ecryptfs_inode);
- file_size = cpu_to_be64(file_size);
- memcpy(xattr_virt, &file_size, sizeof(u64));
+ put_unaligned_be64(i_size_read(ecryptfs_inode), xattr_virt);
rc = lower_inode->i_op->setxattr(lower_dentry, ECRYPTFS_XATTR_NAME,
xattr_virt, size, 0);
mutex_unlock(&lower_inode->i_mutex);
return file;
}
-asmlinkage long sys_eventfd(unsigned int count)
+asmlinkage long sys_eventfd2(unsigned int count, int flags)
{
int fd;
struct eventfd_ctx *ctx;
+ /* Check the EFD_* constants for consistency. */
+ BUILD_BUG_ON(EFD_CLOEXEC != O_CLOEXEC);
+ BUILD_BUG_ON(EFD_NONBLOCK != O_NONBLOCK);
+
+ if (flags & ~(EFD_CLOEXEC | EFD_NONBLOCK))
+ return -EINVAL;
+
ctx = kmalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
* When we call this, the initialization must be complete, since
* anon_inode_getfd() will install the fd.
*/
- fd = anon_inode_getfd("[eventfd]", &eventfd_fops, ctx);
+ fd = anon_inode_getfd("[eventfd]", &eventfd_fops, ctx,
+ flags & (O_CLOEXEC | O_NONBLOCK));
if (fd < 0)
kfree(ctx);
return fd;
}
+asmlinkage long sys_eventfd(unsigned int count)
+{
+ return sys_eventfd2(count, 0);
+}
+
* RB tree. With the current implementation, the "size" parameter is ignored
* (besides sanity checks).
*/
-asmlinkage long sys_epoll_create(int size)
+asmlinkage long sys_epoll_create1(int flags)
{
int error, fd = -1;
struct eventpoll *ep;
+ /* Check the EPOLL_* constant for consistency. */
+ BUILD_BUG_ON(EPOLL_CLOEXEC != O_CLOEXEC);
+
+ if (flags & ~EPOLL_CLOEXEC)
+ return -EINVAL;
+
DNPRINTK(3, (KERN_INFO "[%p] eventpoll: sys_epoll_create(%d)\n",
- current, size));
+ current, flags));
/*
- * Sanity check on the size parameter, and create the internal data
- * structure ( "struct eventpoll" ).
+ * Create the internal data structure ( "struct eventpoll" ).
*/
- error = -EINVAL;
- if (size <= 0 || (error = ep_alloc(&ep)) < 0) {
+ error = ep_alloc(&ep);
+ if (error < 0) {
fd = error;
goto error_return;
}
* Creates all the items needed to setup an eventpoll file. That is,
* a file structure and a free file descriptor.
*/
- fd = anon_inode_getfd("[eventpoll]", &eventpoll_fops, ep);
+ fd = anon_inode_getfd("[eventpoll]", &eventpoll_fops, ep,
+ flags & O_CLOEXEC);
if (fd < 0)
ep_free(ep);
error_return:
DNPRINTK(3, (KERN_INFO "[%p] eventpoll: sys_epoll_create(%d) = %d\n",
- current, size, fd));
+ current, flags, fd));
return fd;
}
+asmlinkage long sys_epoll_create(int size)
+{
+ if (size < 0)
+ return -EINVAL;
+
+ return sys_epoll_create1(0);
+}
+
/*
* The following function implements the controller interface for
* the eventpoll file that enables the insertion/removal/change of
/*
* when the old and new regions overlap clear from new_end.
*/
- free_pgd_range(&tlb, new_end, old_end, new_end,
+ free_pgd_range(tlb, new_end, old_end, new_end,
vma->vm_next ? vma->vm_next->vm_start : 0);
} else {
/*
* have constraints on va-space that make this illegal (IA64) -
* for the others its just a little faster.
*/
- free_pgd_range(&tlb, old_start, old_end, new_end,
+ free_pgd_range(tlb, old_start, old_end, new_end,
vma->vm_next ? vma->vm_next->vm_start : 0);
}
tlb_finish_mmu(tlb, new_end, old_end);
return fd;
}
-asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd)
+asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags)
{
int err = -EBADF;
struct file * file, *tofree;
struct files_struct * files = current->files;
struct fdtable *fdt;
+ if ((flags & ~O_CLOEXEC) != 0)
+ return -EINVAL;
+
spin_lock(&files->file_lock);
if (!(file = fcheck(oldfd)))
goto out_unlock;
rcu_assign_pointer(fdt->fd[newfd], file);
FD_SET(newfd, fdt->open_fds);
- FD_CLR(newfd, fdt->close_on_exec);
+ if (flags & O_CLOEXEC)
+ FD_SET(newfd, fdt->close_on_exec);
+ else
+ FD_CLR(newfd, fdt->close_on_exec);
spin_unlock(&files->file_lock);
if (tofree)
goto out;
}
+asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd)
+{
+ return sys_dup3(oldfd, newfd, 0);
+}
+
asmlinkage long sys_dup(unsigned int fildes)
{
int ret = -EBADF;
enum {
Opt_size, Opt_nr_inodes,
Opt_mode, Opt_uid, Opt_gid,
+ Opt_pagesize,
Opt_err,
};
{Opt_mode, "mode=%o"},
{Opt_uid, "uid=%u"},
{Opt_gid, "gid=%u"},
+ {Opt_pagesize, "pagesize=%s"},
{Opt_err, NULL},
};
struct inode *inode = file->f_path.dentry->d_inode;
loff_t len, vma_len;
int ret;
+ struct hstate *h = hstate_file(file);
/*
* vma address alignment (but not the pgoff alignment) has
vma->vm_flags |= VM_HUGETLB | VM_RESERVED;
vma->vm_ops = &hugetlb_vm_ops;
- if (vma->vm_pgoff & ~(HPAGE_MASK >> PAGE_SHIFT))
+ if (vma->vm_pgoff & ~(huge_page_mask(h) >> PAGE_SHIFT))
return -EINVAL;
vma_len = (loff_t)(vma->vm_end - vma->vm_start);
ret = -ENOMEM;
len = vma_len + ((loff_t)vma->vm_pgoff << PAGE_SHIFT);
- if (vma->vm_flags & VM_MAYSHARE &&
- hugetlb_reserve_pages(inode, vma->vm_pgoff >> (HPAGE_SHIFT-PAGE_SHIFT),
- len >> HPAGE_SHIFT))
+ if (hugetlb_reserve_pages(inode,
+ vma->vm_pgoff >> huge_page_order(h),
+ len >> huge_page_shift(h), vma))
goto out;
ret = 0;
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
unsigned long start_addr;
+ struct hstate *h = hstate_file(file);
- if (len & ~HPAGE_MASK)
+ if (len & ~huge_page_mask(h))
return -EINVAL;
if (len > TASK_SIZE)
return -ENOMEM;
if (flags & MAP_FIXED) {
- if (prepare_hugepage_range(addr, len))
+ if (prepare_hugepage_range(file, addr, len))
return -EINVAL;
return addr;
}
if (addr) {
- addr = ALIGN(addr, HPAGE_SIZE);
+ addr = ALIGN(addr, huge_page_size(h));
vma = find_vma(mm, addr);
if (TASK_SIZE - len >= addr &&
(!vma || addr + len <= vma->vm_start))
start_addr = TASK_UNMAPPED_BASE;
full_search:
- addr = ALIGN(start_addr, HPAGE_SIZE);
+ addr = ALIGN(start_addr, huge_page_size(h));
for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
/* At this point: (!vma || addr < vma->vm_end). */
if (!vma || addr + len <= vma->vm_start)
return addr;
- addr = ALIGN(vma->vm_end, HPAGE_SIZE);
+ addr = ALIGN(vma->vm_end, huge_page_size(h));
}
}
#endif
static ssize_t hugetlbfs_read(struct file *filp, char __user *buf,
size_t len, loff_t *ppos)
{
+ struct hstate *h = hstate_file(filp);
struct address_space *mapping = filp->f_mapping;
struct inode *inode = mapping->host;
- unsigned long index = *ppos >> HPAGE_SHIFT;
- unsigned long offset = *ppos & ~HPAGE_MASK;
+ unsigned long index = *ppos >> huge_page_shift(h);
+ unsigned long offset = *ppos & ~huge_page_mask(h);
unsigned long end_index;
loff_t isize;
ssize_t retval = 0;
if (!isize)
goto out;
- end_index = (isize - 1) >> HPAGE_SHIFT;
+ end_index = (isize - 1) >> huge_page_shift(h);
for (;;) {
struct page *page;
- int nr, ret;
+ unsigned long nr, ret;
/* nr is the maximum number of bytes to copy from this page */
- nr = HPAGE_SIZE;
+ nr = huge_page_size(h);
if (index >= end_index) {
if (index > end_index)
goto out;
- nr = ((isize - 1) & ~HPAGE_MASK) + 1;
+ nr = ((isize - 1) & ~huge_page_mask(h)) + 1;
if (nr <= offset) {
goto out;
}
offset += ret;
retval += ret;
len -= ret;
- index += offset >> HPAGE_SHIFT;
- offset &= ~HPAGE_MASK;
+ index += offset >> huge_page_shift(h);
+ offset &= ~huge_page_mask(h);
if (page)
page_cache_release(page);
break;
}
out:
- *ppos = ((loff_t)index << HPAGE_SHIFT) + offset;
+ *ppos = ((loff_t)index << huge_page_shift(h)) + offset;
mutex_unlock(&inode->i_mutex);
return retval;
}
static void truncate_hugepages(struct inode *inode, loff_t lstart)
{
+ struct hstate *h = hstate_inode(inode);
struct address_space *mapping = &inode->i_data;
- const pgoff_t start = lstart >> HPAGE_SHIFT;
+ const pgoff_t start = lstart >> huge_page_shift(h);
struct pagevec pvec;
pgoff_t next;
int i, freed = 0;
v_offset = 0;
__unmap_hugepage_range(vma,
- vma->vm_start + v_offset, vma->vm_end);
+ vma->vm_start + v_offset, vma->vm_end, NULL);
}
}
{
pgoff_t pgoff;
struct address_space *mapping = inode->i_mapping;
+ struct hstate *h = hstate_inode(inode);
- BUG_ON(offset & ~HPAGE_MASK);
+ BUG_ON(offset & ~huge_page_mask(h));
pgoff = offset >> PAGE_SHIFT;
i_size_write(inode, offset);
static int hugetlbfs_setattr(struct dentry *dentry, struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
+ struct hstate *h = hstate_inode(inode);
int error;
unsigned int ia_valid = attr->ia_valid;
if (ia_valid & ATTR_SIZE) {
error = -EINVAL;
- if (!(attr->ia_size & ~HPAGE_MASK))
+ if (!(attr->ia_size & ~huge_page_mask(h)))
error = hugetlb_vmtruncate(inode, attr->ia_size);
if (error)
goto out;
static int hugetlbfs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(dentry->d_sb);
+ struct hstate *h = hstate_inode(dentry->d_inode);
buf->f_type = HUGETLBFS_MAGIC;
- buf->f_bsize = HPAGE_SIZE;
+ buf->f_bsize = huge_page_size(h);
if (sbinfo) {
spin_lock(&sbinfo->stat_lock);
/* If no limits set, just report 0 for max/free/used
char *p, *rest;
substring_t args[MAX_OPT_ARGS];
int option;
+ unsigned long long size = 0;
+ enum { NO_SIZE, SIZE_STD, SIZE_PERCENT } setsize = NO_SIZE;
if (!options)
return 0;
break;
case Opt_size: {
- unsigned long long size;
/* memparse() will accept a K/M/G without a digit */
if (!isdigit(*args[0].from))
goto bad_val;
size = memparse(args[0].from, &rest);
- if (*rest == '%') {
- size <<= HPAGE_SHIFT;
- size *= max_huge_pages;
- do_div(size, 100);
- }
- pconfig->nr_blocks = (size >> HPAGE_SHIFT);
+ setsize = SIZE_STD;
+ if (*rest == '%')
+ setsize = SIZE_PERCENT;
break;
}
pconfig->nr_inodes = memparse(args[0].from, &rest);
break;
+ case Opt_pagesize: {
+ unsigned long ps;
+ ps = memparse(args[0].from, &rest);
+ pconfig->hstate = size_to_hstate(ps);
+ if (!pconfig->hstate) {
+ printk(KERN_ERR
+ "hugetlbfs: Unsupported page size %lu MB\n",
+ ps >> 20);
+ return -EINVAL;
+ }
+ break;
+ }
+
default:
printk(KERN_ERR "hugetlbfs: Bad mount option: \"%s\"\n",
p);
break;
}
}
+
+ /* Do size after hstate is set up */
+ if (setsize > NO_SIZE) {
+ struct hstate *h = pconfig->hstate;
+ if (setsize == SIZE_PERCENT) {
+ size <<= huge_page_shift(h);
+ size *= h->max_huge_pages;
+ do_div(size, 100);
+ }
+ pconfig->nr_blocks = (size >> huge_page_shift(h));
+ }
+
return 0;
bad_val:
config.uid = current->fsuid;
config.gid = current->fsgid;
config.mode = 0755;
+ config.hstate = &default_hstate;
ret = hugetlbfs_parse_options(data, &config);
if (ret)
return ret;
if (!sbinfo)
return -ENOMEM;
sb->s_fs_info = sbinfo;
+ sbinfo->hstate = config.hstate;
spin_lock_init(&sbinfo->stat_lock);
sbinfo->max_blocks = config.nr_blocks;
sbinfo->free_blocks = config.nr_blocks;
sbinfo->max_inodes = config.nr_inodes;
sbinfo->free_inodes = config.nr_inodes;
sb->s_maxbytes = MAX_LFS_FILESIZE;
- sb->s_blocksize = HPAGE_SIZE;
- sb->s_blocksize_bits = HPAGE_SHIFT;
+ sb->s_blocksize = huge_page_size(config.hstate);
+ sb->s_blocksize_bits = huge_page_shift(config.hstate);
sb->s_magic = HUGETLBFS_MAGIC;
sb->s_op = &hugetlbfs_ops;
sb->s_time_gran = 1;
goto out_dentry;
error = -ENOMEM;
- if (hugetlb_reserve_pages(inode, 0, size >> HPAGE_SHIFT))
+ if (hugetlb_reserve_pages(inode, 0,
+ size >> huge_page_shift(hstate_inode(inode)), NULL))
goto out_inode;
d_instantiate(dentry, inode);
.destroy_watch = free_inotify_user_watch,
};
-asmlinkage long sys_inotify_init(void)
+asmlinkage long sys_inotify_init1(int flags)
{
struct inotify_device *dev;
struct inotify_handle *ih;
struct file *filp;
int fd, ret;
- fd = get_unused_fd();
+ /* Check the IN_* constants for consistency. */
+ BUILD_BUG_ON(IN_CLOEXEC != O_CLOEXEC);
+ BUILD_BUG_ON(IN_NONBLOCK != O_NONBLOCK);
+
+ if (flags & ~(IN_CLOEXEC | IN_NONBLOCK))
+ return -EINVAL;
+
+ fd = get_unused_fd_flags(flags & O_CLOEXEC);
if (fd < 0)
return fd;
filp->f_path.dentry = dget(inotify_mnt->mnt_root);
filp->f_mapping = filp->f_path.dentry->d_inode->i_mapping;
filp->f_mode = FMODE_READ;
- filp->f_flags = O_RDONLY;
+ filp->f_flags = O_RDONLY | (flags & O_NONBLOCK);
filp->private_data = dev;
INIT_LIST_HEAD(&dev->events);
return ret;
}
+asmlinkage long sys_inotify_init(void)
+{
+ return sys_inotify_init1(0);
+}
+
asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, u32 mask)
{
struct inode *inode;
memcpy(buf, &st, sizeof(st));
else {
if (sizeof buf->f_blocks == 4) {
- if ((st.f_blocks | st.f_bfree | st.f_bavail) &
+ if ((st.f_blocks | st.f_bfree | st.f_bavail |
+ st.f_bsize | st.f_frsize) &
0xffffffff00000000ULL)
return -EOVERFLOW;
/*
return NULL;
}
-struct file *create_write_pipe(void)
+struct file *create_write_pipe(int flags)
{
int err;
struct inode *inode;
goto err_dentry;
f->f_mapping = inode->i_mapping;
- f->f_flags = O_WRONLY;
+ f->f_flags = O_WRONLY | (flags & O_NONBLOCK);
f->f_version = 0;
return f;
put_filp(f);
}
-struct file *create_read_pipe(struct file *wrf)
+struct file *create_read_pipe(struct file *wrf, int flags)
{
struct file *f = get_empty_filp();
if (!f)
f->f_mapping = wrf->f_path.dentry->d_inode->i_mapping;
f->f_pos = 0;
- f->f_flags = O_RDONLY;
+ f->f_flags = O_RDONLY | (flags & O_NONBLOCK);
f->f_op = &read_pipe_fops;
f->f_mode = FMODE_READ;
f->f_version = 0;
return f;
}
-int do_pipe(int *fd)
+int do_pipe_flags(int *fd, int flags)
{
struct file *fw, *fr;
int error;
int fdw, fdr;
- fw = create_write_pipe();
+ if (flags & ~(O_CLOEXEC | O_NONBLOCK))
+ return -EINVAL;
+
+ fw = create_write_pipe(flags);
if (IS_ERR(fw))
return PTR_ERR(fw);
- fr = create_read_pipe(fw);
+ fr = create_read_pipe(fw, flags);
error = PTR_ERR(fr);
if (IS_ERR(fr))
goto err_write_pipe;
- error = get_unused_fd();
+ error = get_unused_fd_flags(flags);
if (error < 0)
goto err_read_pipe;
fdr = error;
- error = get_unused_fd();
+ error = get_unused_fd_flags(flags);
if (error < 0)
goto err_fdr;
fdw = error;
return error;
}
+int do_pipe(int *fd)
+{
+ return do_pipe_flags(fd, 0);
+}
+
/*
* sys_pipe() is the normal C calling standard for creating
* a pipe. It's not the way Unix traditionally does this, though.
*/
-asmlinkage long __weak sys_pipe(int __user *fildes)
+asmlinkage long __weak sys_pipe2(int __user *fildes, int flags)
{
int fd[2];
int error;
- error = do_pipe(fd);
+ error = do_pipe_flags(fd, flags);
if (!error) {
if (copy_to_user(fildes, fd, sizeof(fd))) {
sys_close(fd[0]);
return error;
}
+asmlinkage long __weak sys_pipe(int __user *fildes)
+{
+ return sys_pipe2(fildes, 0);
+}
+
/*
* pipefs should _never_ be mounted by userland - too much of security hassle,
* no real gain from having the whole whorehouse mounted. So we don't need
#undef K
}
-extern const struct seq_operations fragmentation_op;
static int fragmentation_open(struct inode *inode, struct file *file)
{
(void)inode;
.release = seq_release,
};
-extern const struct seq_operations pagetypeinfo_op;
static int pagetypeinfo_open(struct inode *inode, struct file *file)
{
return seq_open(file, &pagetypeinfo_op);
.release = seq_release,
};
-extern const struct seq_operations zoneinfo_op;
static int zoneinfo_open(struct inode *inode, struct file *file)
{
return seq_open(file, &zoneinfo_op);
.release = seq_release,
};
-extern const struct seq_operations vmstat_op;
static int vmstat_open(struct inode *inode, struct file *file)
{
return seq_open(file, &vmstat_op);
#ifdef CONFIG_MMU
static int vmalloc_open(struct inode *inode, struct file *file)
{
- return seq_open(file, &vmalloc_op);
+ unsigned int *ptr = NULL;
+ int ret;
+
+ if (NUMA_BUILD)
+ ptr = kmalloc(nr_node_ids * sizeof(unsigned int), GFP_KERNEL);
+ ret = seq_open(file, &vmalloc_op);
+ if (!ret) {
+ struct seq_file *m = file->private_data;
+ m->private = ptr;
+ } else
+ kfree(ptr);
+ return ret;
}
static const struct file_operations proc_vmalloc_operations = {
.open = vmalloc_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = seq_release,
+ .release = seq_release_private,
};
#endif
.read = signalfd_read,
};
-asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask)
+asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask,
+ size_t sizemask, int flags)
{
sigset_t sigmask;
struct signalfd_ctx *ctx;
+ /* Check the SFD_* constants for consistency. */
+ BUILD_BUG_ON(SFD_CLOEXEC != O_CLOEXEC);
+ BUILD_BUG_ON(SFD_NONBLOCK != O_NONBLOCK);
+
+ if (flags & ~(SFD_CLOEXEC | SFD_NONBLOCK))
+ return -EINVAL;
+
if (sizemask != sizeof(sigset_t) ||
copy_from_user(&sigmask, user_mask, sizeof(sigmask)))
return -EINVAL;
* When we call this, the initialization must be complete, since
* anon_inode_getfd() will install the fd.
*/
- ufd = anon_inode_getfd("[signalfd]", &signalfd_fops, ctx);
+ ufd = anon_inode_getfd("[signalfd]", &signalfd_fops, ctx,
+ flags & (O_CLOEXEC | O_NONBLOCK));
if (ufd < 0)
kfree(ctx);
} else {
return ufd;
}
+
+asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask,
+ size_t sizemask)
+{
+ return sys_signalfd4(ufd, user_mask, sizemask, 0);
+}
INIT_LIST_HEAD(&s->s_instances);
INIT_HLIST_HEAD(&s->s_anon);
INIT_LIST_HEAD(&s->s_inodes);
+ INIT_LIST_HEAD(&s->s_dentry_lru);
init_rwsem(&s->s_umount);
mutex_init(&s->s_lock);
lockdep_set_class(&s->s_umount, &type->s_umount_key);
* before performing the write.
*
* SYNC_FILE_RANGE_WRITE: initiate writeout of all those dirty pages in the
- * range which are not presently under writeback.
+ * range which are not presently under writeback. Note that this may block for
+ * significant periods due to exhaustion of disk request structures.
*
* SYNC_FILE_RANGE_WAIT_AFTER: wait upon writeout of all pages in the range
* after performing the write.
int ufd;
struct timerfd_ctx *ctx;
- if (flags)
+ /* Check the TFD_* constants for consistency. */
+ BUILD_BUG_ON(TFD_CLOEXEC != O_CLOEXEC);
+ BUILD_BUG_ON(TFD_NONBLOCK != O_NONBLOCK);
+
+ if (flags & ~(TFD_CLOEXEC | TFD_NONBLOCK))
return -EINVAL;
if (clockid != CLOCK_MONOTONIC &&
clockid != CLOCK_REALTIME)
ctx->clockid = clockid;
hrtimer_init(&ctx->tmr, clockid, HRTIMER_MODE_ABS);
- ufd = anon_inode_getfd("[timerfd]", &timerfd_fops, ctx);
+ ufd = anon_inode_getfd("[timerfd]", &timerfd_fops, ctx,
+ flags & (O_CLOEXEC | O_NONBLOCK));
if (ufd < 0)
kfree(ctx);
{
struct ufs_sb_info *sbi = UFS_SB(vfs->mnt_sb);
unsigned mval = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE;
- struct match_token *tp = tokens;
+ const struct match_token *tp = tokens;
while (tp->token != Opt_onerror_panic && tp->token != mval)
++tp;
#endif /* !__ASSEMBLY__ */
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
#define __pa(x) ((unsigned long) (x) - PAGE_OFFSET)
#define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET))
#ifndef CONFIG_DISCONTIGMEM
+++ /dev/null
-#include <linux/semaphore.h>
#define SO_MARK 36
+/* O_NONBLOCK clashes with the bits used for socket types. Therefore we
+ * have to define SOCK_NONBLOCK to a different value here.
+ */
+#define SOCK_NONBLOCK 0x40000000
+
#endif /* _ASM_SOCKET_H */
#ifndef _INCLUDE_H3600_H_
#define _INCLUDE_H3600_H_
+typedef int __bitwise pm_request_t;
+
+#define PM_SUSPEND ((__force pm_request_t) 1) /* enter D1-D3 */
+#define PM_RESUME ((__force pm_request_t) 2) /* enter D0 */
+
/* generalized support for H3xxx series Compaq Pocket PC's */
#define machine_is_h3xxx() (machine_is_h3100() || machine_is_h3600() || machine_is_h3800())
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
+
#ifndef _ASMARM_PAGE_NOMMU_H
#define _ASMARM_PAGE_NOMMU_H
#define __pmd(x) (x)
#define __pgprot(x) (x)
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
extern unsigned long memory_start;
extern unsigned long memory_end;
#define PAGE_SIZE (1UL << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
#ifndef __ASSEMBLY__
#ifndef CONFIG_MMU
+++ /dev/null
-#include <linux/semaphore.h>
#endif /* !__ASSEMBLY__ */
-/* Align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
-
/*
* The hardware maps the virtual addresses 0x80000000 -> 0x9fffffff
* permanently to the physical addresses 0x00000000 -> 0x1fffffff when
+++ /dev/null
-#include <linux/semaphore.h>
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
extern unsigned long memory_start;
extern unsigned long memory_end;
+++ /dev/null
-#include <linux/semaphore.h>
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
memcpy(dst, src, len)
-void global_flush_tlb(void);
int change_page_attr(struct page *page, int numpages, pgprot_t prot);
#endif /* _CRIS_CACHEFLUSH_H */
#define page_to_phys(page) __pa((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
#ifndef __ASSEMBLY__
#endif /* __ASSEMBLY__ */
+++ /dev/null
-#include <linux/semaphore.h>
#define __pgprot(x) ((pgprot_t) { (x) } )
#define PTE_MASK PAGE_MASK
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
-
#define devmem_is_allowed(pfn) 1
#define __pa(vaddr) virt_to_phys((void *) (unsigned long) (vaddr))
+++ /dev/null
-#include <linux/semaphore.h>
+++ /dev/null
-/*
- * linux/include/asm-h8300/keyboard.h
- * Created 04 Dec 2001 by Khaled Hassounah <khassounah@mediumware.net>
- * This file contains the Dragonball architecture specific keyboard definitions
- */
-
-#ifndef _H8300_KEYBOARD_H
-#define _H8300_KEYBOARD_H
-
-
-/* dummy i.e. no real keyboard */
-#define kbd_setkeycode(x...) (-ENOSYS)
-#define kbd_getkeycode(x...) (-ENOSYS)
-#define kbd_translate(x...) (0)
-#define kbd_unexpected_up(x...) (1)
-#define kbd_leds(x...) do {;} while (0)
-#define kbd_init_hw(x...) do {;} while (0)
-#define kbd_enable_irq(x...) do {;} while (0)
-#define kbd_disable_irq(x...) do {;} while (0)
-
-#endif /* _H8300_KEYBOARD_H */
-
-
-
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
extern unsigned long memory_start;
extern unsigned long memory_end;
+++ /dev/null
-#include <linux/semaphore.h>
#include <asm/page.h>
-void hugetlb_free_pgd_range(struct mmu_gather **tlb, unsigned long addr,
+void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
unsigned long end, unsigned long floor,
unsigned long ceiling);
-int prepare_hugepage_range(unsigned long addr, unsigned long len);
+int prepare_hugepage_range(struct file *file,
+ unsigned long addr, unsigned long len);
static inline int is_hugepage_only_range(struct mm_struct *mm,
unsigned long addr,
#define PAGE_SIZE (__IA64_UL_CONST(1) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE - 1))
-#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
#define PERCPU_PAGE_SHIFT 16 /* log2() of max. size of per-CPU area */
#define PERCPU_PAGE_SIZE (__IA64_UL_CONST(1) << PERCPU_PAGE_SHIFT)
+++ /dev/null
-#include <linux/semaphore.h>
#endif /* !__ASSEMBLY__ */
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
-
/*
* This handles the memory map.. We could make this a config
* option, but too many people screw it up, and too few need
+++ /dev/null
-#include <linux/semaphore.h>
#define DVMA_PAGE_SHIFT 13
#define DVMA_PAGE_SIZE (1UL << DVMA_PAGE_SHIFT)
#define DVMA_PAGE_MASK (~(DVMA_PAGE_SIZE-1))
-#define DVMA_PAGE_ALIGN(addr) (((addr)+DVMA_PAGE_SIZE-1)&DVMA_PAGE_MASK)
+#define DVMA_PAGE_ALIGN(addr) ALIGN(addr, DVMA_PAGE_SIZE)
extern void dvma_init(void);
extern int dvma_map_iommu(unsigned long kaddr, unsigned long baddr,
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
#endif /* !__ASSEMBLY__ */
#include <asm/page_offset.h>
+++ /dev/null
-#include <linux/semaphore.h>
#error only <linux/bitops.h> can be included directly
#endif
+#if defined (__mcfisaaplus__) || defined (__mcfisac__)
+static inline int ffs(unsigned int val)
+{
+ if (!val)
+ return 0;
+
+ asm volatile(
+ "bitrev %0\n\t"
+ "ff1 %0\n\t"
+ : "=d" (val)
+ : "0" (val)
+ );
+ val++;
+ return val;
+}
+
+static inline int __ffs(unsigned int val)
+{
+ asm volatile(
+ "bitrev %0\n\t"
+ "ff1 %0\n\t"
+ : "=d" (val)
+ : "0" (val)
+ );
+ return val;
+}
+
+#else
#include <asm-generic/bitops/ffs.h>
#include <asm-generic/bitops/__ffs.h>
+#endif
+
#include <asm-generic/bitops/sched.h>
#include <asm-generic/bitops/ffz.h>
#ifndef _M68KNOMMU_BYTEORDER_H
#define _M68KNOMMU_BYTEORDER_H
-#include <asm/types.h>
+#include <linux/types.h>
#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
# define __BYTEORDER_HAS_U64__
# define __SWAB_64_THRU_32__
#endif
+#if defined (__mcfisaaplus__) || defined (__mcfisac__)
+static inline __attribute_const__ __u32 ___arch__swab32(__u32 val)
+{
+ asm(
+ "byterev %0"
+ : "=d" (val)
+ : "0" (val)
+ );
+ return val;
+}
+
+#define __arch__swab32(x) ___arch__swab32(x)
+#endif
+
#include <linux/byteorder/big_endian.h>
#endif /* _M68KNOMMU_BYTEORDER_H */
#define SICR_ENET_CLKRT ((uint)0x00002c00)
#endif
-#ifdef CONFIG_RPXCLASSIC
-/* Bits in parallel I/O port registers that have to be set/cleared
- * to configure the pins for SCC1 use.
- */
-#define PA_ENET_RXD ((ushort)0x0001)
-#define PA_ENET_TXD ((ushort)0x0002)
-#define PA_ENET_TCLK ((ushort)0x0200)
-#define PA_ENET_RCLK ((ushort)0x0800)
-#define PB_ENET_TENA ((uint)0x00001000)
-#define PC_ENET_CLSN ((ushort)0x0010)
-#define PC_ENET_RENA ((ushort)0x0020)
-
-/* Control bits in the SICR to route TCLK (CLK2) and RCLK (CLK4) to
- * SCC1. Also, make sure GR1 (bit 24) and SC1 (bit 25) are zero.
- */
-#define SICR_ENET_MASK ((uint)0x000000ff)
-#define SICR_ENET_CLKRT ((uint)0x0000003d)
-#endif
-
/* SCC Event register as used by Ethernet.
*/
#define SCCE_ENET_GRA ((ushort)0x0080) /* Graceful stop complete */
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
extern unsigned long memory_start;
extern unsigned long memory_end;
+++ /dev/null
-#include <linux/semaphore.h>
#define smp_read_barrier_depends() do { } while(0)
#endif
+#define read_barrier_depends() ((void)0)
+
#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
struct __xchg_dummy { unsigned long a[100]; };
#endif
#define arch_align_stack(x) (x)
+
+static inline int irqs_disabled_flags(unsigned long flags)
+{
+ if (flags & 0x0700)
+ return 0;
+ else
+ return 1;
+}
+
#endif /* _M68KNOMMU_SYSTEM_H */
#define _AU1550_SPI_H_
struct au1550_spi_info {
- s16 bus_num; /* defines which PSC and IRQ to use */
u32 mainclk_hz; /* main input clock frequency of PSC */
u16 num_chipselect; /* number of chipselects supported */
void (*activate_cs)(struct au1550_spi_info *spi, int cs, int polarity);
#endif /* !__ASSEMBLY__ */
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
-
/*
* __pa()/__va() should be used only during mem init.
*/
* This decides where the kernel will search for a free chunk of vm
* space during mmap's.
*/
-#define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3))
+#define TASK_UNMAPPED_BASE ((TASK_SIZE / 3) & ~(PAGE_SIZE))
#endif
#ifdef CONFIG_64BIT
+++ /dev/null
-#include <linux/semaphore.h>
};
#define SOCK_MAX (SOCK_PACKET + 1)
+/* Mask which covers at least up to SOCK_MASK-1. The
+ * * remaining bits are used as flags. */
+#define SOCK_TYPE_MASK 0xf
+
+/* Flags for socket, socketpair, paccept */
+#define SOCK_CLOEXEC O_CLOEXEC
+#define SOCK_NONBLOCK O_NONBLOCK
#define ARCH_HAS_SOCKET_TYPES 1
#endif /* !__ASSEMBLY__ */
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
-
/*
* This handles the memory map.. We could make this a config
* option, but too many people screw it up, and too few need
/* This is always fine. */
#define pci_dac_dma_supported(pci_dev, mask) (0)
-/*
- * These macros should be used after a pci_map_sg call has been done
- * to get bus addresses of each of the SG entries and their lengths.
- * You should only work with the number of sg entries pci_map_sg
- * returns.
- */
-#define sg_dma_address(sg) ((sg)->dma_address)
-#define sg_dma_len(sg) ((sg)->length)
-
/* Return the index of the PCI controller for device. */
static inline int pci_controller_num(struct pci_dev *dev)
{
#define ISA_DMA_THRESHOLD (0x00ffffff)
+/*
+ * These macros should be used after a pci_map_sg call has been done
+ * to get bus addresses of each of the SG entries and their lengths.
+ * You should only work with the number of sg entries pci_map_sg
+ * returns.
+ */
+#define sg_dma_address(sg) ((sg)->dma_address)
+#define sg_dma_len(sg) ((sg)->length)
+
#endif /* _ASM_SCATTERLIST_H */
+++ /dev/null
-#include <linux/semaphore.h>
#define PMD_ENTRY_SIZE (1UL << BITS_PER_PMD_ENTRY)
#define PTE_ENTRY_SIZE (1UL << BITS_PER_PTE_ENTRY)
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
-
#define LINUX_GATEWAY_SPACE 0
/* This governs the relationship between virtual and physical addresses.
+++ /dev/null
-#include <linux/semaphore.h>
#define SO_MARK 0x401f
+/* O_NONBLOCK clashes with the bits used for socket types. Therefore we
+ * have to define SOCK_NONBLOCK to a different value here.
+ */
+#define SOCK_NONBLOCK 0x40000000
+
#endif /* _ASM_SOCKET_H */
int is_hugepage_only_range(struct mm_struct *mm, unsigned long addr,
unsigned long len);
-void hugetlb_free_pgd_range(struct mmu_gather **tlb, unsigned long addr,
+void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
unsigned long end, unsigned long floor,
unsigned long ceiling);
* If the arch doesn't supply something else, assume that hugepage
* size aligned regions are ok without further preparation.
*/
-static inline int prepare_hugepage_range(unsigned long addr, unsigned long len)
+static inline int prepare_hugepage_range(struct file *file,
+ unsigned long addr, unsigned long len)
{
- if (len & ~HPAGE_MASK)
+ struct hstate *h = hstate_file(file);
+ if (len & ~huge_page_mask(h))
return -EINVAL;
- if (addr & ~HPAGE_MASK)
+ if (addr & ~huge_page_mask(h))
return -EINVAL;
return 0;
}
* and can be hooked by the platform via ppc_md
*
* * ioremap_flags allows to specify the page flags as an argument and can
- * also be hooked by the platform via ppc_md
+ * also be hooked by the platform via ppc_md. ioremap_prot is the exact
+ * same thing as ioremap_flags.
*
* * ioremap_nocache is identical to ioremap
*
extern void __iomem *ioremap_flags(phys_addr_t address, unsigned long size,
unsigned long flags);
#define ioremap_nocache(addr, size) ioremap((addr), (size))
+#define ioremap_prot(addr, size, prot) ioremap_flags((addr), (size), (prot))
+
extern void iounmap(volatile void __iomem *addr);
extern void __iomem *__ioremap(phys_addr_t, unsigned long size,
#ifdef CONFIG_HUGETLB_PAGE
/*
- * The page size index of the huge pages for use by hugetlbfs
+ * The page size indexes of the huge pages for use by hugetlbfs
*/
-extern int mmu_huge_psize;
+extern unsigned int mmu_huge_psizes[MMU_PAGE_COUNT];
#endif /* CONFIG_HUGETLB_PAGE */
unsigned long pstart, unsigned long mode,
int psize, int ssize);
extern void set_huge_psize(int psize);
+extern void add_gpage(unsigned long addr, unsigned long page_size,
+ unsigned long number_of_pages);
extern void demote_segment_4k(struct mm_struct *mm, unsigned long addr);
extern void htab_initialize(void);
/* align addr on a size boundary - adjust address up if needed */
#define _ALIGN(addr,size) _ALIGN_UP(addr,size)
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) _ALIGN(addr, PAGE_SIZE)
-
/*
* Don't compare things with KERNELBASE or PAGE_OFFSET to test for
* "kernelness", use is_kernel_addr() - it should do what you want.
#define HPAGE_SIZE ((1UL) << HPAGE_SHIFT)
#define HPAGE_MASK (~(HPAGE_SIZE - 1))
#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
+#define HUGE_MAX_HSTATE 3
#endif /* __ASSEMBLY__ */
#define PUD_CACHE_NUM 1
#define PMD_CACHE_NUM 1
#define HUGEPTE_CACHE_NUM 2
-#define PTE_NONCACHE_NUM 3 /* from GFP rather than kmem_cache */
+#define PTE_NONCACHE_NUM 7 /* from GFP rather than kmem_cache */
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
__free_page(ptepage);
}
-#define PGF_CACHENUM_MASK 0x3
+#define PGF_CACHENUM_MASK 0x7
typedef struct pgtable_free {
unsigned long val;
#define _PAGE_HPTEFLAGS (_PAGE_BUSY | _PAGE_HASHPTE | \
_PAGE_SECONDARY | _PAGE_GROUP_IX)
+/* There is no 4K PFN hack on 4K pages */
+#define _PAGE_4K_PFN 0
+
/* PAGE_MASK gives the right answer below, but only by accident */
/* It should be preserving the high 48 bits and then specifically */
/* preserving _PAGE_SECONDARY | _PAGE_GROUP_IX */
unsigned __split = (psize == MMU_PAGE_4K || \
psize == MMU_PAGE_64K_AP); \
shift = mmu_psize_defs[psize].shift; \
- for (index = 0; va < __end; index++, va += (1 << shift)) { \
+ for (index = 0; va < __end; index++, va += (1L << shift)) { \
if (!__split || __rpte_sub_valid(rpte, index)) do { \
#define pte_iterate_hashed_end() } while(0); } } while(0)
#ifndef _PAGE_EXEC
#define _PAGE_EXEC 0
#endif
+#ifndef _PAGE_ENDIAN
+#define _PAGE_ENDIAN 0
+#endif
+#ifndef _PAGE_COHERENT
+#define _PAGE_COHERENT 0
+#endif
#ifndef _PMD_PRESENT_MASK
#define _PMD_PRESENT_MASK _PMD_PRESENT
#endif
#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
+
+#define PAGE_PROT_BITS __pgprot(_PAGE_GUARDED | _PAGE_COHERENT | _PAGE_NO_CACHE | \
+ _PAGE_WRITETHRU | _PAGE_ENDIAN | \
+ _PAGE_USER | _PAGE_ACCESSED | \
+ _PAGE_RW | _PAGE_HWWRITE | _PAGE_DIRTY | \
+ _PAGE_EXEC | _PAGE_HWEXEC)
/*
* Note: the _PAGE_COHERENT bit automatically gets set in the hardware
* PTE if CONFIG_SMP is defined (hash_page does this); there is no need
pte_val(pte) |= _PAGE_ACCESSED; return pte; }
static inline pte_t pte_mkspecial(pte_t pte) {
return pte; }
+static inline unsigned long pte_pgprot(pte_t pte)
+{
+ return __pgprot(pte_val(pte)) & PAGE_PROT_BITS;
+}
static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
{
#define PAGE_AGP __pgprot(_PAGE_BASE | _PAGE_WRENABLE | _PAGE_NO_CACHE)
#define HAVE_PAGE_AGP
+#define PAGE_PROT_BITS __pgprot(_PAGE_GUARDED | _PAGE_COHERENT | \
+ _PAGE_NO_CACHE | _PAGE_WRITETHRU | \
+ _PAGE_4K_PFN | _PAGE_RW | _PAGE_USER | \
+ _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_EXEC)
/* PTEIDX nibble */
#define _PTEIDX_SECONDARY 0x8
#define _PTEIDX_GROUP_IX 0x7
return pte; }
static inline pte_t pte_mkspecial(pte_t pte) {
return pte; }
+static inline unsigned long pte_pgprot(pte_t pte)
+{
+ return __pgprot(pte_val(pte)) & PAGE_PROT_BITS;
+}
/* Atomic PTE updates */
static inline unsigned long pte_update(struct mm_struct *mm,
+++ /dev/null
-#include <linux/semaphore.h>
* If the arch doesn't supply something else, assume that hugepage
* size aligned regions are ok without further preparation.
*/
-static inline int prepare_hugepage_range(unsigned long addr, unsigned long len)
+static inline int prepare_hugepage_range(struct file *file,
+ unsigned long addr, unsigned long len)
{
if (len & ~HPAGE_MASK)
return -EINVAL;
#endif /* !__ASSEMBLY__ */
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
#define __PAGE_OFFSET 0x0UL
#define PAGE_OFFSET 0x0UL
#define __pa(x) (unsigned long)(x)
+++ /dev/null
-#include <linux/semaphore.h>
* If the arch doesn't supply something else, assume that hugepage
* size aligned regions are ok without further preparation.
*/
-static inline int prepare_hugepage_range(unsigned long addr, unsigned long len)
+static inline int prepare_hugepage_range(struct file *file,
+ unsigned long addr, unsigned long len)
{
if (len & ~HPAGE_MASK)
return -EINVAL;
static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) {
}
-static inline void hugetlb_free_pgd_range(struct mmu_gather **tlb,
+static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
unsigned long addr, unsigned long end,
unsigned long floor,
unsigned long ceiling)
#define PAGE_MASK (~(PAGE_SIZE-1))
#define PTE_MASK PAGE_MASK
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
#if defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
#define HPAGE_SHIFT 16
#elif defined(CONFIG_HUGETLB_PAGE_SIZE_256K)
+++ /dev/null
-#include <linux/semaphore.h>
--- /dev/null
+/*
+ * sh7760fb.h -- platform data for SH7760/SH7763 LCDC framebuffer driver.
+ *
+ * (c) 2006-2008 MSC Vertriebsges.m.b.H.,
+ * Manuel Lauss <mano@roarinelk.homelinux.net>
+ * (c) 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
+ */
+
+#ifndef _ASM_SH_SH7760FB_H
+#define _ASM_SH_SH7760FB_H
+
+/*
+ * some bits of the colormap registers should be written as zero.
+ * create a mask for that.
+ */
+#define SH7760FB_PALETTE_MASK 0x00f8fcf8
+
+/* The LCDC dma engine always sets bits 27-26 to 1: this is Area3 */
+#define SH7760FB_DMA_MASK 0x0C000000
+
+/* palette */
+#define LDPR(x) (((x) << 2))
+
+/* framebuffer registers and bits */
+#define LDICKR 0x400
+#define LDMTR 0x402
+/* see sh7760fb.h for LDMTR bits */
+#define LDDFR 0x404
+#define LDDFR_PABD (1 << 8)
+#define LDDFR_COLOR_MASK 0x7F
+#define LDSMR 0x406
+#define LDSMR_ROT (1 << 13)
+#define LDSARU 0x408
+#define LDSARL 0x40c
+#define LDLAOR 0x410
+#define LDPALCR 0x412
+#define LDPALCR_PALS (1 << 4)
+#define LDPALCR_PALEN (1 << 0)
+#define LDHCNR 0x414
+#define LDHSYNR 0x416
+#define LDVDLNR 0x418
+#define LDVTLNR 0x41a
+#define LDVSYNR 0x41c
+#define LDACLNR 0x41e
+#define LDINTR 0x420
+#define LDPMMR 0x424
+#define LDPSPR 0x426
+#define LDCNTR 0x428
+#define LDCNTR_DON (1 << 0)
+#define LDCNTR_DON2 (1 << 4)
+
+#ifdef CONFIG_CPU_SUBTYPE_SH7763
+# define LDLIRNR 0x440
+/* LDINTR bit */
+# define LDINTR_MINTEN (1 << 15)
+# define LDINTR_FINTEN (1 << 14)
+# define LDINTR_VSINTEN (1 << 13)
+# define LDINTR_VEINTEN (1 << 12)
+# define LDINTR_MINTS (1 << 11)
+# define LDINTR_FINTS (1 << 10)
+# define LDINTR_VSINTS (1 << 9)
+# define LDINTR_VEINTS (1 << 8)
+# define VINT_START (LDINTR_VSINTEN)
+# define VINT_CHECK (LDINTR_VSINTS)
+#else
+/* LDINTR bit */
+# define LDINTR_VINTSEL (1 << 12)
+# define LDINTR_VINTE (1 << 8)
+# define LDINTR_VINTS (1 << 0)
+# define VINT_START (LDINTR_VINTSEL)
+# define VINT_CHECK (LDINTR_VINTS)
+#endif
+
+/* HSYNC polarity inversion */
+#define LDMTR_FLMPOL (1 << 15)
+
+/* VSYNC polarity inversion */
+#define LDMTR_CL1POL (1 << 14)
+
+/* DISPLAY-ENABLE polarity inversion */
+#define LDMTR_DISPEN_LOWACT (1 << 13)
+
+/* DISPLAY DATA BUS polarity inversion */
+#define LDMTR_DPOL_LOWACT (1 << 12)
+
+/* AC modulation signal enable */
+#define LDMTR_MCNT (1 << 10)
+
+/* Disable output of HSYNC during VSYNC period */
+#define LDMTR_CL1CNT (1 << 9)
+
+/* Disable output of VSYNC during VSYNC period */
+#define LDMTR_CL2CNT (1 << 8)
+
+/* Display types supported by the LCDC */
+#define LDMTR_STN_MONO_4 0x00
+#define LDMTR_STN_MONO_8 0x01
+#define LDMTR_STN_COLOR_4 0x08
+#define LDMTR_STN_COLOR_8 0x09
+#define LDMTR_STN_COLOR_12 0x0A
+#define LDMTR_STN_COLOR_16 0x0B
+#define LDMTR_DSTN_MONO_8 0x11
+#define LDMTR_DSTN_MONO_16 0x13
+#define LDMTR_DSTN_COLOR_8 0x19
+#define LDMTR_DSTN_COLOR_12 0x1A
+#define LDMTR_DSTN_COLOR_16 0x1B
+#define LDMTR_TFT_COLOR_16 0x2B
+
+/* framebuffer color layout */
+#define LDDFR_1BPP_MONO 0x00
+#define LDDFR_2BPP_MONO 0x01
+#define LDDFR_4BPP_MONO 0x02
+#define LDDFR_6BPP_MONO 0x04
+#define LDDFR_4BPP 0x0A
+#define LDDFR_8BPP 0x0C
+#define LDDFR_16BPP_RGB555 0x1D
+#define LDDFR_16BPP_RGB565 0x2D
+
+/* LCDC Pixclock sources */
+#define LCDC_CLKSRC_BUSCLOCK 0
+#define LCDC_CLKSRC_PERIPHERAL 1
+#define LCDC_CLKSRC_EXTERNAL 2
+
+#define LDICKR_CLKSRC(x) \
+ (((x) & 3) << 12)
+
+/* LCDC pixclock input divider. Set to 1 at a minimum! */
+#define LDICKR_CLKDIV(x) \
+ ((x) & 0x1f)
+
+struct sh7760fb_platdata {
+
+ /* Set this member to a valid fb_videmode for the display you
+ * wish to use. The following members must be initialized:
+ * xres, yres, hsync_len, vsync_len, sync,
+ * {left,right,upper,lower}_margin.
+ * The driver uses the above members to calculate register values
+ * and memory requirements. Other members are ignored but may
+ * be used by other framebuffer layer components.
+ */
+ struct fb_videomode *def_mode;
+
+ /* LDMTR includes display type and signal polarity. The
+ * HSYNC/VSYNC polarities are derived from the fb_var_screeninfo
+ * data above; however the polarities of the following signals
+ * must be encoded in the ldmtr member:
+ * Display Enable signal (default high-active) DISPEN_LOWACT
+ * Display Data signals (default high-active) DPOL_LOWACT
+ * AC Modulation signal (default off) MCNT
+ * Hsync-During-Vsync suppression (default off) CL1CNT
+ * Vsync-during-vsync suppression (default off) CL2CNT
+ * NOTE: also set a display type!
+ * (one of LDMTR_{STN,DSTN,TFT}_{MONO,COLOR}_{4,8,12,16})
+ */
+ u16 ldmtr;
+
+ /* LDDFR controls framebuffer image format (depth, organization)
+ * Use ONE of the LDDFR_?BPP_* macros!
+ */
+ u16 lddfr;
+
+ /* LDPMMR and LDPSPR control the timing of the power signals
+ * for the display. Please read the SH7760 Hardware Manual,
+ * Chapters 30.3.17, 30.3.18 and 30.4.6!
+ */
+ u16 ldpmmr;
+ u16 ldpspr;
+
+ /* LDACLNR contains the line numbers after which the AC modulation
+ * signal is to toggle. Set to ZERO for TFTs or displays which
+ * do not need it. (Chapter 30.3.15 in SH7760 Hardware Manual).
+ */
+ u16 ldaclnr;
+
+ /* LDICKR contains information on pixelclock source and config.
+ * Please use the LDICKR_CLKSRC() and LDICKR_CLKDIV() macros.
+ * minimal value for CLKDIV() must be 1!.
+ */
+ u16 ldickr;
+
+ /* set this member to 1 if you wish to use the LCDC's hardware
+ * rotation function. This is limited to displays <= 320x200
+ * pixels resolution!
+ */
+ int rotate; /* set to 1 to rotate 90 CCW */
+
+ /* set this to 1 to suppress vsync irq use. */
+ int novsync;
+
+ /* blanking hook for platform. Set this if your platform can do
+ * more than the LCDC in terms of blanking (e.g. disable clock
+ * generator / backlight power supply / etc.
+ */
+ void (*blank) (int);
+};
+
+#endif /* _ASM_SH_SH7760FB_H */
--- /dev/null
+#ifndef __ASM_SH_MOBILE_LCDC_H__
+#define __ASM_SH_MOBILE_LCDC_H__
+
+#include <linux/fb.h>
+
+enum { RGB8, /* 24bpp, 8:8:8 */
+ RGB9, /* 18bpp, 9:9 */
+ RGB12A, /* 24bpp, 12:12 */
+ RGB12B, /* 12bpp */
+ RGB16, /* 16bpp */
+ RGB18, /* 18bpp */
+ RGB24, /* 24bpp */
+ SYS8A, /* 24bpp, 8:8:8 */
+ SYS8B, /* 18bpp, 8:8:2 */
+ SYS8C, /* 18bpp, 2:8:8 */
+ SYS8D, /* 16bpp, 8:8 */
+ SYS9, /* 18bpp, 9:9 */
+ SYS12, /* 24bpp, 12:12 */
+ SYS16A, /* 16bpp */
+ SYS16B, /* 18bpp, 16:2 */
+ SYS16C, /* 18bpp, 2:16 */
+ SYS18, /* 18bpp */
+ SYS24 };/* 24bpp */
+
+enum { LCDC_CHAN_DISABLED = 0,
+ LCDC_CHAN_MAINLCD,
+ LCDC_CHAN_SUBLCD };
+
+enum { LCDC_CLK_BUS, LCDC_CLK_PERIPHERAL, LCDC_CLK_EXTERNAL };
+
+struct sh_mobile_lcdc_sys_bus_cfg {
+ unsigned long ldmt2r;
+ unsigned long ldmt3r;
+};
+
+struct sh_mobile_lcdc_sys_bus_ops {
+ void (*write_index)(void *handle, unsigned long data);
+ void (*write_data)(void *handle, unsigned long data);
+ unsigned long (*read_data)(void *handle);
+};
+
+struct sh_mobile_lcdc_board_cfg {
+ void *board_data;
+ int (*setup_sys)(void *board_data, void *sys_ops_handle,
+ struct sh_mobile_lcdc_sys_bus_ops *sys_ops);
+ void (*display_on)(void *board_data);
+ void (*display_off)(void *board_data);
+};
+
+struct sh_mobile_lcdc_chan_cfg {
+ int chan;
+ int bpp;
+ int interface_type; /* selects RGBn or SYSn I/F, see above */
+ int clock_divider;
+ struct fb_videomode lcd_cfg;
+ struct sh_mobile_lcdc_board_cfg board_cfg;
+ struct sh_mobile_lcdc_sys_bus_cfg sys_bus_cfg; /* only for SYSn I/F */
+};
+
+struct sh_mobile_lcdc_info {
+ unsigned long lddckr;
+ int clock_source;
+ struct sh_mobile_lcdc_chan_cfg ch[2];
+};
+
+#endif /* __ASM_SH_MOBILE_LCDC_H__ */
* If the arch doesn't supply something else, assume that hugepage
* size aligned regions are ok without further preparation.
*/
-static inline int prepare_hugepage_range(unsigned long addr, unsigned long len)
+static inline int prepare_hugepage_range(struct file *file,
+ unsigned long addr, unsigned long len)
{
if (len & ~HPAGE_MASK)
return -EINVAL;
return 0;
}
-static inline void hugetlb_free_pgd_range(struct mmu_gather **tlb,
+static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
unsigned long addr, unsigned long end,
unsigned long floor,
unsigned long ceiling)
#endif /* !(__ASSEMBLY__) */
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
#define PAGE_OFFSET 0xf0000000
#ifndef __ASSEMBLY__
extern unsigned long phys_base;
#endif /* !(__ASSEMBLY__) */
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
/* We used to stick this into a hard-coded global register (%g4)
* but that does not make sense anymore.
*/
+++ /dev/null
-#include <linux/semaphore.h>
+++ /dev/null
-#include <asm-sparc/semaphore.h>
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
extern unsigned long uml_physmem;
#define PAGE_OFFSET (uml_physmem)
#define pfn_valid(pfn) ((pfn) < max_mapnr)
#define virt_addr_valid(v) pfn_valid(phys_to_pfn(__pa(v)))
-extern struct page *arch_validate(struct page *page, gfp_t mask, int order);
-#define HAVE_ARCH_VALIDATE
-
#include <asm-generic/memory_model.h>
#include <asm-generic/page.h>
extern void show_regs(struct pt_regs *regs);
-extern void send_sigtrap(struct task_struct *tsk, struct uml_pt_regs *regs,
- int error_code);
-
extern int arch_copy_tls(struct task_struct *new);
extern void clear_flushed_tls(struct task_struct *task);
+++ /dev/null
-#include <linux/semaphore.h>
+++ /dev/null
-include include/asm-generic/Kbuild.asm
+++ /dev/null
-#ifndef __V850_A_OUT_H__
-#define __V850_A_OUT_H__
-
-struct exec
-{
- unsigned long a_info; /* Use macros N_MAGIC, etc for access */
- unsigned a_text; /* length of text, in bytes */
- unsigned a_data; /* length of data, in bytes */
- unsigned a_bss; /* length of uninitialized data area for file, in bytes */
- unsigned a_syms; /* length of symbol table data in file, in bytes */
- unsigned a_entry; /* start address */
- unsigned a_trsize; /* length of relocation info for text, in bytes */
- unsigned a_drsize; /* length of relocation info for data, in bytes */
-};
-
-#define N_TRSIZE(a) ((a).a_trsize)
-#define N_DRSIZE(a) ((a).a_drsize)
-#define N_SYMSIZE(a) ((a).a_syms)
-
-
-#endif /* __V850_A_OUT_H__ */
+++ /dev/null
-/*
- * include/asm-v850/anna.h -- Anna V850E2 evaluation cpu chip/board
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_ANNA_H__
-#define __V850_ANNA_H__
-
-#include <asm/v850e2.h> /* Based on V850E2 core. */
-
-
-#define CPU_MODEL "v850e2/anna"
-#define CPU_MODEL_LONG "NEC V850E2/Anna"
-#define PLATFORM "anna"
-#define PLATFORM_LONG "NEC/Midas lab V850E2/Anna evaluation board"
-
-#define CPU_CLOCK_FREQ 200000000 /* 200MHz */
-#define SYS_CLOCK_FREQ 33300000 /* 33.3MHz */
-
-
-/* 1MB of static RAM. This memory is mirrored 64 times. */
-#define SRAM_ADDR 0x04000000
-#define SRAM_SIZE 0x00100000 /* 1MB */
-/* 64MB of DRAM. */
-#define SDRAM_ADDR 0x08000000
-#define SDRAM_SIZE 0x04000000 /* 64MB */
-
-
-/* For <asm/page.h> */
-#define PAGE_OFFSET SRAM_ADDR
-
-/* We use on-chip RAM, for a few miscellaneous variables that must be
- accessible using a load instruction relative to R0. The Anna chip has
- 128K of `dLB' ram nominally located at 0xFFF00000, but it's mirrored
- every 128K, so we can use the `last mirror' (except for the portion at
- the top which is overridden by I/O space). In addition, the early
- sample chip we're using has lots of memory errors in the dLB ram, so we
- use a specially chosen location that has at least 20 bytes of contiguous
- valid memory (xxxF0020 - xxxF003F). */
-#define R0_RAM_ADDR 0xFFFF8020
-
-
-/* Anna specific control registers. */
-#define ANNA_ILBEN_ADDR 0xFFFFF7F2
-#define ANNA_ILBEN (*(volatile u16 *)ANNA_ILBEN_ADDR)
-
-
-/* I/O port P0-P3. */
-/* Direct I/O. Bits 0-7 are pins Pn0-Pn7. */
-#define ANNA_PORT_IO_ADDR(n) (0xFFFFF400 + (n) * 2)
-#define ANNA_PORT_IO(n) (*(volatile u8 *)ANNA_PORT_IO_ADDR(n))
-/* Port mode (for direct I/O, 0 = output, 1 = input). */
-#define ANNA_PORT_PM_ADDR(n) (0xFFFFF410 + (n) * 2)
-#define ANNA_PORT_PM(n) (*(volatile u8 *)ANNA_PORT_PM_ADDR(n))
-
-
-/* Hardware-specific interrupt numbers (in the kernel IRQ namespace). */
-#define IRQ_INTP(n) (n) /* Pnnn (pin) interrupts 0-15 */
-#define IRQ_INTP_NUM 16
-#define IRQ_INTOV(n) (0x10 + (n)) /* 0-2 */
-#define IRQ_INTOV_NUM 2
-#define IRQ_INTCCC(n) (0x12 + (n))
-#define IRQ_INTCCC_NUM 4
-#define IRQ_INTCMD(n) (0x16 + (n)) /* interval timer interrupts 0-5 */
-#define IRQ_INTCMD_NUM 6
-#define IRQ_INTDMA(n) (0x1C + (n)) /* DMA interrupts 0-3 */
-#define IRQ_INTDMA_NUM 4
-#define IRQ_INTDMXER 0x20
-#define IRQ_INTSRE(n) (0x21 + (n)*3) /* UART 0-1 reception error */
-#define IRQ_INTSRE_NUM 2
-#define IRQ_INTSR(n) (0x22 + (n)*3) /* UART 0-1 reception completion */
-#define IRQ_INTSR_NUM 2
-#define IRQ_INTST(n) (0x23 + (n)*3) /* UART 0-1 transmission completion */
-#define IRQ_INTST_NUM 2
-
-#define NUM_CPU_IRQS 64
-
-#ifndef __ASSEMBLY__
-/* Initialize chip interrupts. */
-extern void anna_init_irqs (void);
-#endif
-
-
-/* Anna UART details (basically the same as the V850E/MA1, but 2 channels). */
-#define V850E_UART_NUM_CHANNELS 2
-#define V850E_UART_BASE_FREQ (SYS_CLOCK_FREQ / 2)
-#define V850E_UART_CHIP_NAME "V850E2/NA85E2A"
-
-/* This is the UART channel that's actually connected on the board. */
-#define V850E_UART_CONSOLE_CHANNEL 1
-
-/* This is a function that gets called before configuring the UART. */
-#define V850E_UART_PRE_CONFIGURE anna_uart_pre_configure
-#ifndef __ASSEMBLY__
-extern void anna_uart_pre_configure (unsigned chan,
- unsigned cflags, unsigned baud);
-#endif
-
-/* This board supports RTS/CTS for the on-chip UART, but only for channel 1. */
-
-/* CTS for UART channel 1 is pin P37 (bit 7 of port 3). */
-#define V850E_UART_CTS(chan) ((chan) == 1 ? !(ANNA_PORT_IO(3) & 0x80) : 1)
-/* RTS for UART channel 1 is pin P07 (bit 7 of port 0). */
-#define V850E_UART_SET_RTS(chan, val) \
- do { \
- if (chan == 1) { \
- unsigned old = ANNA_PORT_IO(0); \
- if (val) \
- ANNA_PORT_IO(0) = old & ~0x80; \
- else \
- ANNA_PORT_IO(0) = old | 0x80; \
- } \
- } while (0)
-
-
-/* Timer C details. */
-#define V850E_TIMER_C_BASE_ADDR 0xFFFFF600
-
-/* Timer D details (the Anna actually has 5 of these; should change later). */
-#define V850E_TIMER_D_BASE_ADDR 0xFFFFF540
-#define V850E_TIMER_D_TMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x0)
-#define V850E_TIMER_D_CMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x2)
-#define V850E_TIMER_D_TMCD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x4)
-
-#define V850E_TIMER_D_BASE_FREQ SYS_CLOCK_FREQ
-#define V850E_TIMER_D_TMCD_CS_MIN 1 /* min 2^1 divider */
-
-
-#endif /* __V850_ANNA_H__ */
+++ /dev/null
-/*
- * include/asm-v850/as85ep1.h -- AS85EP1 evaluation CPU chip/board
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_AS85EP1_H__
-#define __V850_AS85EP1_H__
-
-#include <asm/v850e.h>
-
-
-#define CPU_MODEL "as85ep1"
-#define CPU_MODEL_LONG "NEC V850E/AS85EP1"
-#define PLATFORM "AS85EP1"
-#define PLATFORM_LONG "NEC V850E/AS85EP1 evaluation board"
-
-#define CPU_CLOCK_FREQ 96000000 /* 96MHz */
-#define SYS_CLOCK_FREQ CPU_CLOCK_FREQ
-
-
-/* 1MB of static RAM. */
-#define SRAM_ADDR 0x00400000
-#define SRAM_SIZE 0x00100000 /* 1MB */
-/* About 58MB of DRAM. This can actually be at one of two positions,
- determined by jump JP3; we have to use the first position because the
- second is partially out of processor instruction addressing range
- (though in the second position there's actually 64MB available). */
-#define SDRAM_ADDR 0x00600000
-#define SDRAM_SIZE 0x039F8000 /* approx 58MB */
-
-/* For <asm/page.h> */
-#define PAGE_OFFSET SRAM_ADDR
-
-/* We use on-chip RAM, for a few miscellaneous variables that must be
- accessible using a load instruction relative to R0. The AS85EP1 chip
- 16K of internal RAM located slightly before I/O space. */
-#define R0_RAM_ADDR 0xFFFF8000
-
-
-/* AS85EP1 specific control registers. */
-#define AS85EP1_CSC_ADDR(n) (0xFFFFF060 + (n) * 2)
-#define AS85EP1_CSC(n) (*(volatile u16 *)AS85EP1_CSC_ADDR(n))
-#define AS85EP1_BSC_ADDR 0xFFFFF066
-#define AS85EP1_BSC (*(volatile u16 *)AS85EP1_BSC_ADDR)
-#define AS85EP1_BCT_ADDR(n) (0xFFFFF480 + (n) * 2)
-#define AS85EP1_BCT(n) (*(volatile u16 *)AS85EP1_BCT_ADDR(n))
-#define AS85EP1_DWC_ADDR(n) (0xFFFFF484 + (n) * 2)
-#define AS85EP1_DWC(n) (*(volatile u16 *)AS85EP1_DWC_ADDR(n))
-#define AS85EP1_BCC_ADDR 0xFFFFF488
-#define AS85EP1_BCC (*(volatile u16 *)AS85EP1_BCC_ADDR)
-#define AS85EP1_ASC_ADDR 0xFFFFF48A
-#define AS85EP1_ASC (*(volatile u16 *)AS85EP1_ASC_ADDR)
-#define AS85EP1_BCP_ADDR 0xFFFFF48C
-#define AS85EP1_BCP (*(volatile u16 *)AS85EP1_BCP_ADDR)
-#define AS85EP1_LBS_ADDR 0xFFFFF48E
-#define AS85EP1_LBS (*(volatile u16 *)AS85EP1_LBS_ADDR)
-#define AS85EP1_BMC_ADDR 0xFFFFF498
-#define AS85EP1_BMC (*(volatile u16 *)AS85EP1_BMC_ADDR)
-#define AS85EP1_PRC_ADDR 0xFFFFF49A
-#define AS85EP1_PRC (*(volatile u16 *)AS85EP1_PRC_ADDR)
-#define AS85EP1_SCR_ADDR(n) (0xFFFFF4A0 + (n) * 4)
-#define AS85EP1_SCR(n) (*(volatile u16 *)AS85EP1_SCR_ADDR(n))
-#define AS85EP1_RFS_ADDR(n) (0xFFFFF4A2 + (n) * 4)
-#define AS85EP1_RFS(n) (*(volatile u16 *)AS85EP1_RFS_ADDR(n))
-#define AS85EP1_IRAMM_ADDR 0xFFFFF80A
-#define AS85EP1_IRAMM (*(volatile u8 *)AS85EP1_IRAMM_ADDR)
-
-
-
-/* I/O port P0-P13. */
-/* Direct I/O. Bits 0-7 are pins Pn0-Pn7. */
-#define AS85EP1_PORT_IO_ADDR(n) (0xFFFFF400 + (n) * 2)
-#define AS85EP1_PORT_IO(n) (*(volatile u8 *)AS85EP1_PORT_IO_ADDR(n))
-/* Port mode (for direct I/O, 0 = output, 1 = input). */
-#define AS85EP1_PORT_PM_ADDR(n) (0xFFFFF420 + (n) * 2)
-#define AS85EP1_PORT_PM(n) (*(volatile u8 *)AS85EP1_PORT_PM_ADDR(n))
-/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */
-#define AS85EP1_PORT_PMC_ADDR(n) (0xFFFFF440 + (n) * 2)
-#define AS85EP1_PORT_PMC(n) (*(volatile u8 *)AS85EP1_PORT_PMC_ADDR(n))
-
-
-/* Hardware-specific interrupt numbers (in the kernel IRQ namespace). */
-#define IRQ_INTCCC(n) (0x0C + (n))
-#define IRQ_INTCCC_NUM 8
-#define IRQ_INTCMD(n) (0x14 + (n)) /* interval timer interrupts 0-5 */
-#define IRQ_INTCMD_NUM 6
-#define IRQ_INTSRE(n) (0x1E + (n)*3) /* UART 0-1 reception error */
-#define IRQ_INTSRE_NUM 2
-#define IRQ_INTSR(n) (0x1F + (n)*3) /* UART 0-1 reception completion */
-#define IRQ_INTSR_NUM 2
-#define IRQ_INTST(n) (0x20 + (n)*3) /* UART 0-1 transmission completion */
-#define IRQ_INTST_NUM 2
-
-#define NUM_CPU_IRQS 64
-
-#ifndef __ASSEMBLY__
-/* Initialize chip interrupts. */
-extern void as85ep1_init_irqs (void);
-#endif
-
-
-/* AS85EP1 UART details (basically the same as the V850E/MA1, but 2 channels). */
-#define V850E_UART_NUM_CHANNELS 2
-#define V850E_UART_BASE_FREQ (SYS_CLOCK_FREQ / 4)
-#define V850E_UART_CHIP_NAME "V850E/NA85E"
-
-/* This is a function that gets called before configuring the UART. */
-#define V850E_UART_PRE_CONFIGURE as85ep1_uart_pre_configure
-#ifndef __ASSEMBLY__
-extern void as85ep1_uart_pre_configure (unsigned chan,
- unsigned cflags, unsigned baud);
-#endif
-
-/* This board supports RTS/CTS for the on-chip UART, but only for channel 1. */
-
-/* CTS for UART channel 1 is pin P54 (bit 4 of port 5). */
-#define V850E_UART_CTS(chan) ((chan) == 1 ? !(AS85EP1_PORT_IO(5) & 0x10) : 1)
-/* RTS for UART channel 1 is pin P53 (bit 3 of port 5). */
-#define V850E_UART_SET_RTS(chan, val) \
- do { \
- if (chan == 1) { \
- unsigned old = AS85EP1_PORT_IO(5); \
- if (val) \
- AS85EP1_PORT_IO(5) = old & ~0x8; \
- else \
- AS85EP1_PORT_IO(5) = old | 0x8; \
- } \
- } while (0)
-
-
-/* Timer C details. */
-#define V850E_TIMER_C_BASE_ADDR 0xFFFFF600
-
-/* Timer D details (the AS85EP1 actually has 5 of these; should change later). */
-#define V850E_TIMER_D_BASE_ADDR 0xFFFFF540
-#define V850E_TIMER_D_TMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x0)
-#define V850E_TIMER_D_CMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x2)
-#define V850E_TIMER_D_TMCD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x4)
-
-#define V850E_TIMER_D_BASE_FREQ SYS_CLOCK_FREQ
-#define V850E_TIMER_D_TMCD_CS_MIN 2 /* min 2^2 divider */
-
-
-#endif /* __V850_AS85EP1_H__ */
+++ /dev/null
-/*
- * include/asm-v850/asm.h -- Macros for writing assembly code
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#define G_ENTRY(name) \
- .balign 4; \
- .globl name; \
- .type name,@function; \
- name
-#define G_DATA(name) \
- .globl name; \
- .type name,@object; \
- name
-#define END(name) \
- .size name,.-name
-
-#define L_ENTRY(name) \
- .balign 4; \
- .type name,@function; \
- name
-#define L_DATA(name) \
- .type name,@object; \
- name
+++ /dev/null
-/*
- * include/asm-v850/atomic.h -- Atomic operations
- *
- * Copyright (C) 2001,02 NEC Corporation
- * Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_ATOMIC_H__
-#define __V850_ATOMIC_H__
-
-
-#include <asm/system.h>
-
-#ifdef CONFIG_SMP
-#error SMP not supported
-#endif
-
-typedef struct { int counter; } atomic_t;
-
-#define ATOMIC_INIT(i) { (i) }
-
-#ifdef __KERNEL__
-
-#define atomic_read(v) ((v)->counter)
-#define atomic_set(v,i) (((v)->counter) = (i))
-
-static inline int atomic_add_return (int i, volatile atomic_t *v)
-{
- unsigned long flags;
- int res;
-
- local_irq_save (flags);
- res = v->counter + i;
- v->counter = res;
- local_irq_restore (flags);
-
- return res;
-}
-
-static __inline__ int atomic_sub_return (int i, volatile atomic_t *v)
-{
- unsigned long flags;
- int res;
-
- local_irq_save (flags);
- res = v->counter - i;
- v->counter = res;
- local_irq_restore (flags);
-
- return res;
-}
-
-static __inline__ void atomic_clear_mask (unsigned long mask, unsigned long *addr)
-{
- unsigned long flags;
-
- local_irq_save (flags);
- *addr &= ~mask;
- local_irq_restore (flags);
-}
-
-#endif
-
-#define atomic_add(i, v) atomic_add_return ((i), (v))
-#define atomic_sub(i, v) atomic_sub_return ((i), (v))
-
-#define atomic_dec_return(v) atomic_sub_return (1, (v))
-#define atomic_inc_return(v) atomic_add_return (1, (v))
-#define atomic_inc(v) atomic_inc_return (v)
-#define atomic_dec(v) atomic_dec_return (v)
-
-/*
- * atomic_inc_and_test - increment and test
- * @v: pointer of type atomic_t
- *
- * Atomically increments @v by 1
- * and returns true if the result is zero, or false for all
- * other cases.
- */
-#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
-
-#define atomic_sub_and_test(i,v) (atomic_sub_return ((i), (v)) == 0)
-#define atomic_dec_and_test(v) (atomic_sub_return (1, (v)) == 0)
-#define atomic_add_negative(i,v) (atomic_add_return ((i), (v)) < 0)
-
-static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
-{
- int ret;
- unsigned long flags;
-
- local_irq_save(flags);
- ret = v->counter;
- if (likely(ret == old))
- v->counter = new;
- local_irq_restore(flags);
-
- return ret;
-}
-
-#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
-
-static inline int atomic_add_unless(atomic_t *v, int a, int u)
-{
- int ret;
- unsigned long flags;
-
- local_irq_save(flags);
- ret = v->counter;
- if (ret != u)
- v->counter += a;
- local_irq_restore(flags);
-
- return ret != u;
-}
-
-#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
-
-/* Atomic operations are already serializing on ARM */
-#define smp_mb__before_atomic_dec() barrier()
-#define smp_mb__after_atomic_dec() barrier()
-#define smp_mb__before_atomic_inc() barrier()
-#define smp_mb__after_atomic_inc() barrier()
-
-#include <asm-generic/atomic.h>
-#endif /* __V850_ATOMIC_H__ */
+++ /dev/null
-#ifndef __V850_AUXVEC_H__
-#define __V850_AUXVEC_H__
-
-#endif /* __V850_AUXVEC_H__ */
+++ /dev/null
-/*
- * include/asm-v850/bitops.h -- Bit operations
- *
- * Copyright (C) 2001,02,03,04,05 NEC Electronics Corporation
- * Copyright (C) 2001,02,03,04,05 Miles Bader <miles@gnu.org>
- * Copyright (C) 1992 Linus Torvalds.
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- */
-
-#ifndef __V850_BITOPS_H__
-#define __V850_BITOPS_H__
-
-#ifndef _LINUX_BITOPS_H
-#error only <linux/bitops.h> can be included directly
-#endif
-
-#include <linux/compiler.h> /* unlikely */
-#include <asm/byteorder.h> /* swab32 */
-#include <asm/system.h> /* interrupt enable/disable */
-
-
-#ifdef __KERNEL__
-
-#include <asm-generic/bitops/ffz.h>
-
-/*
- * The __ functions are not atomic
- */
-
-/* In the following constant-bit-op macros, a "g" constraint is used when
- we really need an integer ("i" constraint). This is to avoid
- warnings/errors from the compiler in the case where the associated
- operand _isn't_ an integer, and shouldn't produce bogus assembly because
- use of that form is protected by a guard statement that checks for
- constants, and should otherwise be removed by the optimizer. This
- _usually_ works -- however, __builtin_constant_p returns true for a
- variable with a known constant value too, and unfortunately gcc will
- happily put the variable in a register and use the register for the "g"
- constraint'd asm operand. To avoid the latter problem, we add a
- constant offset to the operand and subtract it back in the asm code;
- forcing gcc to do arithmetic on the value is usually enough to get it
- to use a real constant value. This is horrible, and ultimately
- unreliable too, but it seems to work for now (hopefully gcc will offer
- us more control in the future, so we can do a better job). */
-
-#define __const_bit_op(op, nr, addr) \
- ({ __asm__ (op " (%0 - 0x123), %1" \
- :: "g" (((nr) & 0x7) + 0x123), \
- "m" (*((char *)(addr) + ((nr) >> 3))) \
- : "memory"); })
-#define __var_bit_op(op, nr, addr) \
- ({ int __nr = (nr); \
- __asm__ (op " %0, [%1]" \
- :: "r" (__nr & 0x7), \
- "r" ((char *)(addr) + (__nr >> 3)) \
- : "memory"); })
-#define __bit_op(op, nr, addr) \
- ((__builtin_constant_p (nr) && (unsigned)(nr) <= 0x7FFFF) \
- ? __const_bit_op (op, nr, addr) \
- : __var_bit_op (op, nr, addr))
-
-#define __set_bit(nr, addr) __bit_op ("set1", nr, addr)
-#define __clear_bit(nr, addr) __bit_op ("clr1", nr, addr)
-#define __change_bit(nr, addr) __bit_op ("not1", nr, addr)
-
-/* The bit instructions used by `non-atomic' variants are actually atomic. */
-#define set_bit __set_bit
-#define clear_bit __clear_bit
-#define change_bit __change_bit
-
-
-#define __const_tns_bit_op(op, nr, addr) \
- ({ int __tns_res; \
- __asm__ __volatile__ ( \
- "tst1 (%1 - 0x123), %2; setf nz, %0; " op " (%1 - 0x123), %2" \
- : "=&r" (__tns_res) \
- : "g" (((nr) & 0x7) + 0x123), \
- "m" (*((char *)(addr) + ((nr) >> 3))) \
- : "memory"); \
- __tns_res; \
- })
-#define __var_tns_bit_op(op, nr, addr) \
- ({ int __nr = (nr); \
- int __tns_res; \
- __asm__ __volatile__ ( \
- "tst1 %1, [%2]; setf nz, %0; " op " %1, [%2]" \
- : "=&r" (__tns_res) \
- : "r" (__nr & 0x7), \
- "r" ((char *)(addr) + (__nr >> 3)) \
- : "memory"); \
- __tns_res; \
- })
-#define __tns_bit_op(op, nr, addr) \
- ((__builtin_constant_p (nr) && (unsigned)(nr) <= 0x7FFFF) \
- ? __const_tns_bit_op (op, nr, addr) \
- : __var_tns_bit_op (op, nr, addr))
-#define __tns_atomic_bit_op(op, nr, addr) \
- ({ int __tns_atomic_res, __tns_atomic_flags; \
- local_irq_save (__tns_atomic_flags); \
- __tns_atomic_res = __tns_bit_op (op, nr, addr); \
- local_irq_restore (__tns_atomic_flags); \
- __tns_atomic_res; \
- })
-
-#define __test_and_set_bit(nr, addr) __tns_bit_op ("set1", nr, addr)
-#define test_and_set_bit(nr, addr) __tns_atomic_bit_op ("set1", nr, addr)
-
-#define __test_and_clear_bit(nr, addr) __tns_bit_op ("clr1", nr, addr)
-#define test_and_clear_bit(nr, addr) __tns_atomic_bit_op ("clr1", nr, addr)
-
-#define __test_and_change_bit(nr, addr) __tns_bit_op ("not1", nr, addr)
-#define test_and_change_bit(nr, addr) __tns_atomic_bit_op ("not1", nr, addr)
-
-
-#define __const_test_bit(nr, addr) \
- ({ int __test_bit_res; \
- __asm__ __volatile__ ("tst1 (%1 - 0x123), %2; setf nz, %0" \
- : "=r" (__test_bit_res) \
- : "g" (((nr) & 0x7) + 0x123), \
- "m" (*((const char *)(addr) + ((nr) >> 3)))); \
- __test_bit_res; \
- })
-static inline int __test_bit (int nr, const void *addr)
-{
- int res;
- __asm__ __volatile__ ("tst1 %1, [%2]; setf nz, %0"
- : "=r" (res)
- : "r" (nr & 0x7), "r" (addr + (nr >> 3)));
- return res;
-}
-#define test_bit(nr,addr) \
- ((__builtin_constant_p (nr) && (unsigned)(nr) <= 0x7FFFF) \
- ? __const_test_bit ((nr), (addr)) \
- : __test_bit ((nr), (addr)))
-
-
-/* clear_bit doesn't provide any barrier for the compiler. */
-#define smp_mb__before_clear_bit() barrier ()
-#define smp_mb__after_clear_bit() barrier ()
-
-#include <asm-generic/bitops/ffs.h>
-#include <asm-generic/bitops/fls.h>
-#include <asm-generic/bitops/fls64.h>
-#include <asm-generic/bitops/__ffs.h>
-#include <asm-generic/bitops/find.h>
-#include <asm-generic/bitops/sched.h>
-#include <asm-generic/bitops/hweight.h>
-#include <asm-generic/bitops/lock.h>
-
-#include <asm-generic/bitops/ext2-non-atomic.h>
-#define ext2_set_bit_atomic(l,n,a) test_and_set_bit(n,a)
-#define ext2_clear_bit_atomic(l,n,a) test_and_clear_bit(n,a)
-
-#include <asm-generic/bitops/minix.h>
-
-#endif /* __KERNEL__ */
-
-#endif /* __V850_BITOPS_H__ */
+++ /dev/null
-/*
- * include/asm-v850/bug.h -- Bug reporting
- *
- * Copyright (C) 2003 NEC Electronics Corporation
- * Copyright (C) 2003 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_BUG_H__
-#define __V850_BUG_H__
-
-#ifdef CONFIG_BUG
-extern void __bug (void) __attribute__ ((noreturn));
-#define BUG() __bug()
-#define HAVE_ARCH_BUG
-#endif
-
-#include <asm-generic/bug.h>
-
-#endif /* __V850_BUG_H__ */
+++ /dev/null
-/*
- * include/asm-v850e/bugs.h
- *
- * Copyright (C) 1994 Linus Torvalds
- */
-
-/*
- * This is included by init/main.c to check for architecture-dependent bugs.
- *
- * Needs:
- * void check_bugs(void);
- */
-
-static void check_bugs(void)
-{
-}
+++ /dev/null
-/*
- * include/asm-v850/byteorder.h -- Endian id and conversion ops
- *
- * Copyright (C) 2001 NEC Corporation
- * Copyright (C) 2001 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_BYTEORDER_H__
-#define __V850_BYTEORDER_H__
-
-#include <asm/types.h>
-#include <linux/compiler.h>
-
-#ifdef __GNUC__
-
-static __inline__ __attribute_const__ __u32 ___arch__swab32 (__u32 word)
-{
- __u32 res;
- __asm__ ("bsw %1, %0" : "=r" (res) : "r" (word));
- return res;
-}
-
-static __inline__ __attribute_const__ __u16 ___arch__swab16 (__u16 half_word)
-{
- __u16 res;
- __asm__ ("bsh %1, %0" : "=r" (res) : "r" (half_word));
- return res;
-}
-
-#define __arch__swab32(x) ___arch__swab32(x)
-#define __arch__swab16(x) ___arch__swab16(x)
-
-#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
-# define __BYTEORDER_HAS_U64__
-# define __SWAB_64_THRU_32__
-#endif
-
-#endif /* __GNUC__ */
-
-#include <linux/byteorder/little_endian.h>
-
-#endif /* __V850_BYTEORDER_H__ */
+++ /dev/null
-/*
- * include/asm-v850/cache.h -- Cache operations
- *
- * Copyright (C) 2001,05 NEC Corporation
- * Copyright (C) 2001,05 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_CACHE_H__
-#define __V850_CACHE_H__
-
-/* All cache operations are machine-dependent. */
-#include <asm/machdep.h>
-
-#ifndef L1_CACHE_BYTES
-/* This processor has no cache, so just choose an arbitrary value. */
-#define L1_CACHE_BYTES 16
-#define L1_CACHE_SHIFT 4
-#endif
-
-#endif /* __V850_CACHE_H__ */
+++ /dev/null
-/*
- * include/asm-v850/cacheflush.h
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_CACHEFLUSH_H__
-#define __V850_CACHEFLUSH_H__
-
-/* Somebody depends on this; sigh... */
-#include <linux/mm.h>
-
-#include <asm/machdep.h>
-
-
-/* The following are all used by the kernel in ways that only affect
- systems with MMUs, so we don't need them. */
-#define flush_cache_all() ((void)0)
-#define flush_cache_mm(mm) ((void)0)
-#define flush_cache_dup_mm(mm) ((void)0)
-#define flush_cache_range(vma, start, end) ((void)0)
-#define flush_cache_page(vma, vmaddr, pfn) ((void)0)
-#define flush_dcache_page(page) ((void)0)
-#define flush_dcache_mmap_lock(mapping) ((void)0)
-#define flush_dcache_mmap_unlock(mapping) ((void)0)
-#define flush_cache_vmap(start, end) ((void)0)
-#define flush_cache_vunmap(start, end) ((void)0)
-
-#ifdef CONFIG_NO_CACHE
-
-/* Some systems have no cache at all, in which case we don't need these
- either. */
-#define flush_icache() ((void)0)
-#define flush_icache_range(start, end) ((void)0)
-#define flush_icache_page(vma,pg) ((void)0)
-#define flush_icache_user_range(vma,pg,adr,len) ((void)0)
-#define flush_cache_sigtramp(vaddr) ((void)0)
-
-#else /* !CONFIG_NO_CACHE */
-
-struct page;
-struct mm_struct;
-struct vm_area_struct;
-
-/* Otherwise, somebody had better define them. */
-extern void flush_icache (void);
-extern void flush_icache_range (unsigned long start, unsigned long end);
-extern void flush_icache_page (struct vm_area_struct *vma, struct page *page);
-extern void flush_icache_user_range (struct vm_area_struct *vma,
- struct page *page,
- unsigned long adr, int len);
-extern void flush_cache_sigtramp (unsigned long addr);
-
-#endif /* CONFIG_NO_CACHE */
-
-#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
-do { memcpy(dst, src, len); \
- flush_icache_user_range(vma, page, vaddr, len); \
-} while (0)
-#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
- memcpy(dst, src, len)
-
-#endif /* __V850_CACHEFLUSH_H__ */
+++ /dev/null
-/*
- * include/asm-v850/checksum.h -- Checksum ops
- *
- * Copyright (C) 2001,2005 NEC Corporation
- * Copyright (C) 2001,2005 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_CHECKSUM_H__
-#define __V850_CHECKSUM_H__
-
-/*
- * computes the checksum of a memory block at buff, length len,
- * and adds in "sum" (32-bit)
- *
- * returns a 32-bit number suitable for feeding into itself
- * or csum_tcpudp_magic
- *
- * this function must be called with even lengths, except
- * for the last fragment, which may be odd
- *
- * it's best to have buff aligned on a 32-bit boundary
- */
-extern __wsum csum_partial(const void *buff, int len, __wsum sum);
-
-/*
- * the same as csum_partial, but copies from src while it
- * checksums
- *
- * here even more important to align src and dst on a 32-bit (or even
- * better 64-bit) boundary
- */
-extern __wsum csum_partial_copy_nocheck(const void *src,
- void *dst, int len, __wsum sum);
-
-
-/*
- * the same as csum_partial_copy, but copies from user space.
- *
- * here even more important to align src and dst on a 32-bit (or even
- * better 64-bit) boundary
- */
-extern __wsum csum_partial_copy_from_user (const void *src,
- void *dst,
- int len, __wsum sum,
- int *csum_err);
-
-__sum16 ip_fast_csum(const void *iph, unsigned int ihl);
-
-/*
- * Fold a partial checksum
- */
-static inline __sum16 csum_fold (__wsum sum)
-{
- unsigned int result;
- /*
- %0 %1
- hsw %1, %0 H L L H
- add %1, %0 H L H+L+C H+L
- */
- asm ("hsw %1, %0; add %1, %0" : "=&r" (result) : "r" (sum));
- return (__force __sum16)(~result >> 16);
-}
-
-
-/*
- * computes the checksum of the TCP/UDP pseudo-header
- * returns a 16-bit checksum, already complemented
- */
-static inline __wsum
-csum_tcpudp_nofold (__be32 saddr, __be32 daddr,
- unsigned short len,
- unsigned short proto, __wsum sum)
-{
- int __carry;
- __asm__ ("add %2, %0;"
- "setf c, %1;"
- "add %1, %0;"
- "add %3, %0;"
- "setf c, %1;"
- "add %1, %0;"
- "add %4, %0;"
- "setf c, %1;"
- "add %1, %0"
- : "=&r" (sum), "=&r" (__carry)
- : "r" (daddr), "r" (saddr),
- "r" ((len + proto) << 8),
- "0" (sum));
- return sum;
-}
-
-static inline __sum16
-csum_tcpudp_magic (__be32 saddr, __be32 daddr,
- unsigned short len,
- unsigned short proto, __wsum sum)
-{
- return csum_fold (csum_tcpudp_nofold (saddr, daddr, len, proto, sum));
-}
-
-/*
- * this routine is used for miscellaneous IP-like checksums, mainly
- * in icmp.c
- */
-extern __sum16 ip_compute_csum(const void *buff, int len);
-
-
-#endif /* __V850_CHECKSUM_H__ */
+++ /dev/null
-/*
- * include/asm-v850/clinkage.h -- Macros to reflect C symbol-naming conventions
- *
- * Copyright (C) 2001,02 NEC Corporatione
- * Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_CLINKAGE_H__
-#define __V850_CLINKAGE_H__
-
-#include <asm/macrology.h>
-#include <asm/asm.h>
-
-#define C_SYMBOL_NAME(name) macrology_paste(_, name)
-#define C_SYMBOL_STRING(name) macrology_stringify(C_SYMBOL_NAME(name))
-#define C_ENTRY(name) G_ENTRY(C_SYMBOL_NAME(name))
-#define C_DATA(name) G_DATA(C_SYMBOL_NAME(name))
-#define C_END(name) END(C_SYMBOL_NAME(name))
-
-#endif /* __V850_CLINKAGE_H__ */
+++ /dev/null
-#ifndef __V850_CPUTIME_H
-#define __V850_CPUTIME_H
-
-#include <asm-generic/cputime.h>
-
-#endif /* __V850_CPUTIME_H */
+++ /dev/null
-/*
- * include/asm-v850/current.h -- Current task
- *
- * Copyright (C) 2001,02 NEC Corporation
- * Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_CURRENT_H__
-#define __V850_CURRENT_H__
-
-#ifndef __ASSEMBLY__ /* <linux/thread_info.h> is not asm-safe. */
-#include <linux/thread_info.h>
-#endif
-
-#include <asm/macrology.h>
-
-
-/* Register used to hold the current task pointer while in the kernel.
- Any `call clobbered' register without a special meaning should be OK,
- but check asm/v850/kernel/entry.S to be sure. */
-#define CURRENT_TASK_REGNUM 16
-#define CURRENT_TASK macrology_paste (r, CURRENT_TASK_REGNUM)
-
-
-#ifdef __ASSEMBLY__
-
-/* Put a pointer to the current task structure into REG. */
-#define GET_CURRENT_TASK(reg) \
- GET_CURRENT_THREAD(reg); \
- ld.w TI_TASK[reg], reg
-
-#else /* !__ASSEMBLY__ */
-
-/* A pointer to the current task. */
-register struct task_struct *current \
- __asm__ (macrology_stringify (CURRENT_TASK));
-
-#endif /* __ASSEMBLY__ */
-
-
-#endif /* _V850_CURRENT_H */
+++ /dev/null
-/*
- * include/asm-v850/delay.h -- Delay routines, using a pre-computed
- * "loops_per_second" value
- *
- * Copyright (C) 2001,03 NEC Corporation
- * Copyright (C) 2001,03 Miles Bader <miles@gnu.org>
- * Copyright (C) 1994 Hamish Macdonald
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- */
-
-#ifndef __V850_DELAY_H__
-#define __V850_DELAY_H__
-
-#include <asm/param.h>
-
-static inline void __delay(unsigned long loops)
-{
- if (loops)
- __asm__ __volatile__ ("1: add -1, %0; bnz 1b"
- : "=r" (loops) : "0" (loops));
-}
-
-/*
- * Use only for very small delays ( < 1 msec). Should probably use a
- * lookup table, really, as the multiplications take much too long with
- * short delays. This is a "reasonable" implementation, though (and the
- * first constant multiplications gets optimized away if the delay is
- * a constant)
- */
-
-extern unsigned long loops_per_jiffy;
-
-static inline void udelay(unsigned long usecs)
-{
- register unsigned long full_loops, part_loops;
-
- full_loops = ((usecs * HZ) / 1000000) * loops_per_jiffy;
- usecs %= (1000000 / HZ);
- part_loops = (usecs * HZ * loops_per_jiffy) / 1000000;
-
- __delay(full_loops + part_loops);
-}
-
-#endif /* __V850_DELAY_H__ */
+++ /dev/null
-/*
- * Arch specific extensions to struct device
- *
- * This file is released under the GPLv2
- */
-#include <asm-generic/device.h>
-
+++ /dev/null
-#include <asm-generic/div64.h>
+++ /dev/null
-#ifndef __V850_DMA_MAPPING_H__
-#define __V850_DMA_MAPPING_H__
-
-
-#ifdef CONFIG_PCI
-#include <asm-generic/dma-mapping.h>
-#else
-#include <asm-generic/dma-mapping-broken.h>
-#endif
-
-#endif /* __V850_DMA_MAPPING_H__ */
+++ /dev/null
-#ifndef __V850_DMA_H__
-#define __V850_DMA_H__
-
-/* What should this be? */
-#define MAX_DMA_ADDRESS 0xFFFFFFFF
-
-/* reserve a DMA channel */
-extern int request_dma (unsigned int dmanr, const char * device_id);
-/* release it again */
-extern void free_dma (unsigned int dmanr);
-
-#ifdef CONFIG_PCI
-extern int isa_dma_bridge_buggy;
-#else
-#define isa_dma_bridge_buggy (0)
-#endif
-
-#endif /* __V850_DMA_H__ */
+++ /dev/null
-#ifndef __V850_ELF_H__
-#define __V850_ELF_H__
-
-/*
- * ELF register definitions..
- */
-
-#include <asm/ptrace.h>
-#include <asm/user.h>
-#include <asm/byteorder.h>
-
-typedef unsigned long elf_greg_t;
-
-#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
-typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-
-typedef struct user_fpu_struct elf_fpregset_t;
-
-/*
- * This is used to ensure we don't load something for the wrong architecture.
- */
-#define elf_check_arch(x) \
- ((x)->e_machine == EM_V850 || (x)->e_machine == EM_CYGNUS_V850)
-
-
-/* v850 relocation types. */
-#define R_V850_NONE 0
-#define R_V850_9_PCREL 1
-#define R_V850_22_PCREL 2
-#define R_V850_HI16_S 3
-#define R_V850_HI16 4
-#define R_V850_LO16 5
-#define R_V850_32 6
-#define R_V850_16 7
-#define R_V850_8 8
-#define R_V850_SDA_16_16_OFFSET 9 /* For ld.b, st.b, set1, clr1,
- not1, tst1, movea, movhi */
-#define R_V850_SDA_15_16_OFFSET 10 /* For ld.w, ld.h, ld.hu, st.w, st.h */
-#define R_V850_ZDA_16_16_OFFSET 11 /* For ld.b, st.b, set1, clr1,
- not1, tst1, movea, movhi */
-#define R_V850_ZDA_15_16_OFFSET 12 /* For ld.w, ld.h, ld.hu, st.w, st.h */
-#define R_V850_TDA_6_8_OFFSET 13 /* For sst.w, sld.w */
-#define R_V850_TDA_7_8_OFFSET 14 /* For sst.h, sld.h */
-#define R_V850_TDA_7_7_OFFSET 15 /* For sst.b, sld.b */
-#define R_V850_TDA_16_16_OFFSET 16 /* For set1, clr1, not1, tst1,
- movea, movhi */
-#define R_V850_NUM 17
-
-
-/*
- * These are used to set parameters in the core dumps.
- */
-#define ELF_CLASS ELFCLASS32
-#ifdef __LITTLE_ENDIAN__
-#define ELF_DATA ELFDATA2LSB
-#else
-#define ELF_DATA ELFDATA2MSB
-#endif
-#define ELF_ARCH EM_V850
-
-#define USE_ELF_CORE_DUMP
-#define ELF_EXEC_PAGESIZE 4096
-
-
-#define ELF_CORE_COPY_REGS(_dest,_regs) \
- memcpy((char *) &_dest, (char *) _regs, \
- sizeof(struct pt_regs));
-
-/* This yields a mask that user programs can use to figure out what
- instruction set this CPU supports. This could be done in user space,
- but it's not easy, and we've already done it here. */
-
-#define ELF_HWCAP (0)
-
-/* This yields a string that ld.so will use to load implementation
- specific libraries for optimization. This is more specific in
- intent than poking at uname or /proc/cpuinfo.
-
- For the moment, we have only optimizations for the Intel generations,
- but that could change... */
-
-#define ELF_PLATFORM (NULL)
-
-#define ELF_PLAT_INIT(_r, load_addr) \
- do { \
- _r->gpr[0] = _r->gpr[1] = _r->gpr[2] = _r->gpr[3] = \
- _r->gpr[4] = _r->gpr[5] = _r->gpr[6] = _r->gpr[7] = \
- _r->gpr[8] = _r->gpr[9] = _r->gpr[10] = _r->gpr[11] = \
- _r->gpr[12] = _r->gpr[13] = _r->gpr[14] = _r->gpr[15] = \
- _r->gpr[16] = _r->gpr[17] = _r->gpr[18] = _r->gpr[19] = \
- _r->gpr[20] = _r->gpr[21] = _r->gpr[22] = _r->gpr[23] = \
- _r->gpr[24] = _r->gpr[25] = _r->gpr[26] = _r->gpr[27] = \
- _r->gpr[28] = _r->gpr[29] = _r->gpr[30] = _r->gpr[31] = \
- 0; \
- } while (0)
-
-#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT)
-
-#endif /* __V850_ELF_H__ */
+++ /dev/null
-#ifndef _ASM_EMERGENCY_RESTART_H
-#define _ASM_EMERGENCY_RESTART_H
-
-#include <asm-generic/emergency-restart.h>
-
-#endif /* _ASM_EMERGENCY_RESTART_H */
+++ /dev/null
-/*
- * include/asm-v850/entry.h -- Definitions used by low-level trap handlers
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_ENTRY_H__
-#define __V850_ENTRY_H__
-
-
-#include <asm/ptrace.h>
-#include <asm/machdep.h>
-
-
-/* These are special variables using by the kernel trap/interrupt code
- to save registers in, at a time when there are no spare registers we
- can use to do so, and we can't depend on the value of the stack
- pointer. This means that they must be within a signed 16-bit
- displacement of 0x00000000. */
-
-#define KERNEL_VAR_SPACE_ADDR R0_RAM_ADDR
-
-#ifdef __ASSEMBLY__
-#define KERNEL_VAR(addr) addr[r0]
-#else
-#define KERNEL_VAR(addr) (*(volatile unsigned long *)(addr))
-#endif
-
-/* Kernel stack pointer, 4 bytes. */
-#define KSP_ADDR (KERNEL_VAR_SPACE_ADDR + 0)
-#define KSP KERNEL_VAR (KSP_ADDR)
-/* 1 if in kernel-mode, 0 if in user mode, 1 byte. */
-#define KM_ADDR (KERNEL_VAR_SPACE_ADDR + 4)
-#define KM KERNEL_VAR (KM_ADDR)
-/* Temporary storage for interrupt handlers, 4 bytes. */
-#define INT_SCRATCH_ADDR (KERNEL_VAR_SPACE_ADDR + 8)
-#define INT_SCRATCH KERNEL_VAR (INT_SCRATCH_ADDR)
-/* Where the stack-pointer is saved when jumping to various sorts of
- interrupt handlers. ENTRY_SP is used by everything except NMIs,
- which have their own location. Higher-priority NMIs can clobber the
- value written by a lower priority NMI, since they can't be disabled,
- but that's OK, because only NMI0 (the lowest-priority one) is allowed
- to return. */
-#define ENTRY_SP_ADDR (KERNEL_VAR_SPACE_ADDR + 12)
-#define ENTRY_SP KERNEL_VAR (ENTRY_SP_ADDR)
-#define NMI_ENTRY_SP_ADDR (KERNEL_VAR_SPACE_ADDR + 16)
-#define NMI_ENTRY_SP KERNEL_VAR (NMI_ENTRY_SP_ADDR)
-
-#ifdef CONFIG_RESET_GUARD
-/* Used to detect unexpected resets (since the v850 has no MMU, any call
- through a null pointer will jump to the reset vector). We detect
- such resets by checking for a magic value, RESET_GUARD_ACTIVE, in
- this location. Properly resetting the machine stores zero there, so
- it shouldn't trigger the guard; the power-on value is uncertain, but
- it's unlikely to be RESET_GUARD_ACTIVE. */
-#define RESET_GUARD_ADDR (KERNEL_VAR_SPACE_ADDR + 28)
-#define RESET_GUARD KERNEL_VAR (RESET_GUARD_ADDR)
-#define RESET_GUARD_ACTIVE 0xFAB4BEEF
-#endif /* CONFIG_RESET_GUARD */
-
-#ifdef CONFIG_V850E_HIGHRES_TIMER
-#define HIGHRES_TIMER_SLOW_TICKS_ADDR (KERNEL_VAR_SPACE_ADDR + 32)
-#define HIGHRES_TIMER_SLOW_TICKS KERNEL_VAR (HIGHRES_TIMER_SLOW_TICKS_ADDR)
-#endif /* CONFIG_V850E_HIGHRES_TIMER */
-
-#ifndef __ASSEMBLY__
-
-#ifdef CONFIG_RESET_GUARD
-/* Turn off reset guard, so that resetting the machine works normally.
- This should be called in the various machine_halt, etc., functions. */
-static inline void disable_reset_guard (void)
-{
- RESET_GUARD = 0;
-}
-#endif /* CONFIG_RESET_GUARD */
-
-#endif /* !__ASSEMBLY__ */
-
-
-/* A `state save frame' is a struct pt_regs preceded by some extra space
- suitable for a function call stack frame. */
-
-/* Amount of room on the stack reserved for arguments and to satisfy the
- C calling conventions, in addition to the space used by the struct
- pt_regs that actually holds saved values. */
-#define STATE_SAVE_ARG_SPACE (6*4) /* Up to six arguments. */
-
-
-#ifdef __ASSEMBLY__
-
-/* The size of a state save frame. */
-#define STATE_SAVE_SIZE (PT_SIZE + STATE_SAVE_ARG_SPACE)
-
-#else /* !__ASSEMBLY__ */
-
-/* The size of a state save frame. */
-#define STATE_SAVE_SIZE (sizeof (struct pt_regs) + STATE_SAVE_ARG_SPACE)
-
-#endif /* __ASSEMBLY__ */
-
-
-/* Offset of the struct pt_regs in a state save frame. */
-#define STATE_SAVE_PT_OFFSET STATE_SAVE_ARG_SPACE
-
-
-#endif /* __V850_ENTRY_H__ */
+++ /dev/null
-#ifndef __V850_ERRNO_H__
-#define __V850_ERRNO_H__
-
-#include <asm-generic/errno.h>
-
-#endif /* __V850_ERRNO_H__ */
+++ /dev/null
-#ifndef _ASM_FB_H_
-#define _ASM_FB_H_
-#include <linux/fb.h>
-
-#define fb_pgprotect(...) do {} while (0)
-
-static inline int fb_is_primary_device(struct fb_info *info)
-{
- return 0;
-}
-
-#endif /* _ASM_FB_H_ */
+++ /dev/null
-#ifndef __V850_FCNTL_H__
-#define __V850_FCNTL_H__
-
-#define O_DIRECTORY 040000 /* must be a directory */
-#define O_NOFOLLOW 0100000 /* don't follow links */
-#define O_DIRECT 0200000 /* direct disk access hint - currently ignored */
-#define O_LARGEFILE 0400000
-
-#include <asm-generic/fcntl.h>
-
-#endif /* __V850_FCNTL_H__ */
+++ /dev/null
-/*
- * include/asm-v850/flat.h -- uClinux flat-format executables
- *
- * Copyright (C) 2002,03 NEC Electronics Corporation
- * Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_FLAT_H__
-#define __V850_FLAT_H__
-
-/* The amount by which a relocation can exceed the program image limits
- without being regarded as an error. On the v850, the relocations of
- some base-pointers can be offset by 0x8000 (to allow better usage of the
- space offered by 16-bit signed offsets -- in most cases the offsets used
- with such a base-pointer will be negative). */
-
-#define flat_reloc_valid(reloc, size) ((reloc) <= (size + 0x8000))
-
-#define flat_stack_align(sp) /* nothing needed */
-#define flat_argvp_envp_on_stack() 0
-#define flat_old_ram_flag(flags) (flags)
-#define flat_set_persistent(relval, p) 0
-
-/* We store the type of relocation in the top 4 bits of the `relval.' */
-
-/* Convert a relocation entry into an address. */
-static inline unsigned long
-flat_get_relocate_addr (unsigned long relval)
-{
- return relval & 0x0fffffff; /* Mask out top 4-bits */
-}
-
-#define flat_v850_get_reloc_type(relval) ((relval) >> 28)
-
-#define FLAT_V850_R_32 0 /* Normal 32-bit reloc */
-#define FLAT_V850_R_HI16S_LO15 1 /* High 16-bits + signed 15-bit low field */
-#define FLAT_V850_R_HI16S_LO16 2 /* High 16-bits + signed 16-bit low field */
-
-/* Extract the address to be relocated from the symbol reference at RP;
- RELVAL is the raw relocation-table entry from which RP is derived.
- For the v850, RP should always be half-word aligned. */
-static inline unsigned long flat_get_addr_from_rp (unsigned long *rp,
- unsigned long relval,
- unsigned long flags,
- unsigned long *persistent)
-{
- short *srp = (short *)rp;
-
- switch (flat_v850_get_reloc_type (relval))
- {
- case FLAT_V850_R_32:
- /* Simple 32-bit address. */
- return srp[0] | (srp[1] << 16);
-
- case FLAT_V850_R_HI16S_LO16:
- /* The high and low halves of the address are in the 16
- bits at RP, and the 2nd word of the 32-bit instruction
- following that, respectively. The low half is _signed_
- so we have to sign-extend it and add it to the upper
- half instead of simply or-ing them together.
-
- Unlike most relocated address, this one is stored in
- native (little-endian) byte-order to avoid problems with
- trashing the low-order bit, so we have to convert to
- network-byte-order before returning, as that's what the
- caller expects. */
- return htonl ((srp[0] << 16) + srp[2]);
-
- case FLAT_V850_R_HI16S_LO15:
- /* The high and low halves of the address are in the 16
- bits at RP, and the upper 15 bits of the 2nd word of the
- 32-bit instruction following that, respectively. The
- low half is _signed_ so we have to sign-extend it and
- add it to the upper half instead of simply or-ing them
- together. The lowest bit is always zero.
-
- Unlike most relocated address, this one is stored in
- native (little-endian) byte-order to avoid problems with
- trashing the low-order bit, so we have to convert to
- network-byte-order before returning, as that's what the
- caller expects. */
- return htonl ((srp[0] << 16) + (srp[2] & ~0x1));
-
- default:
- return ~0; /* bogus value */
- }
-}
-
-/* Insert the address ADDR into the symbol reference at RP;
- RELVAL is the raw relocation-table entry from which RP is derived.
- For the v850, RP should always be half-word aligned. */
-static inline void flat_put_addr_at_rp (unsigned long *rp, unsigned long addr,
- unsigned long relval)
-{
- short *srp = (short *)rp;
-
- switch (flat_v850_get_reloc_type (relval)) {
- case FLAT_V850_R_32:
- /* Simple 32-bit address. */
- srp[0] = addr & 0xFFFF;
- srp[1] = (addr >> 16);
- break;
-
- case FLAT_V850_R_HI16S_LO16:
- /* The high and low halves of the address are in the 16
- bits at RP, and the 2nd word of the 32-bit instruction
- following that, respectively. The low half is _signed_
- so we must carry its sign bit to the upper half before
- writing the upper half. */
- srp[0] = (addr >> 16) + ((addr >> 15) & 0x1);
- srp[2] = addr & 0xFFFF;
- break;
-
- case FLAT_V850_R_HI16S_LO15:
- /* The high and low halves of the address are in the 16
- bits at RP, and the upper 15 bits of the 2nd word of the
- 32-bit instruction following that, respectively. The
- low half is _signed_ so we must carry its sign bit to
- the upper half before writing the upper half. The
- lowest bit we preserve from the existing instruction. */
- srp[0] = (addr >> 16) + ((addr >> 15) & 0x1);
- srp[2] = (addr & 0xFFFE) | (srp[2] & 0x1);
- break;
- }
-}
-
-#endif /* __V850_FLAT_H__ */
+++ /dev/null
-/*
- * include/asm-v850/fpga85e2c.h -- Machine-dependent defs for
- * FPGA implementation of V850E2/NA85E2C
- *
- * Copyright (C) 2002,03 NEC Electronics Corporation
- * Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_FPGA85E2C_H__
-#define __V850_FPGA85E2C_H__
-
-#include <asm/v850e2.h>
-#include <asm/clinkage.h>
-
-
-#define CPU_MODEL "v850e2/fpga85e2c"
-#define CPU_MODEL_LONG "NEC V850E2/NA85E2C"
-#define PLATFORM "fpga85e2c"
-#define PLATFORM_LONG "NA85E2C FPGA implementation"
-
-
-/* `external ram'. */
-#define ERAM_ADDR 0
-#define ERAM_SIZE 0x00100000 /* 1MB */
-
-
-/* FPGA specific control registers. */
-
-/* Writing a non-zero value to FLGREG(0) will signal the controlling CPU
- to stop execution. */
-#define FLGREG_ADDR(n) (0xFFE80100 + 2*(n))
-#define FLGREG(n) (*(volatile unsigned char *)FLGREG_ADDR (n))
-#define FLGREG_NUM 2
-
-#define CSDEV_ADDR(n) (0xFFE80110 + 2*(n))
-#define CSDEV(n) (*(volatile unsigned char *)CSDEV_ADDR (n))
-
-
-/* Timer interrupts 0-3, interrupt at intervals from CLK/4096 to CLK/16384. */
-#define IRQ_RPU(n) (60 + (n))
-#define IRQ_RPU_NUM 4
-
-/* For <asm/irq.h> */
-#define NUM_CPU_IRQS 64
-
-
-/* General-purpose timer. */
-/* control/status register (can only be read/written via bit insns) */
-#define RPU_GTMC_ADDR 0xFFFFFB00
-#define RPU_GTMC (*(volatile unsigned char *)RPU_GTMC_ADDR)
-#define RPU_GTMC_CE_BIT 7 /* clock enable (control) */
-#define RPU_GTMC_OV_BIT 6 /* overflow (status) */
-#define RPU_GTMC_CLK_BIT 1 /* 0 = .5 MHz CLK, 1 = 1 Mhz (control) */
-/* 32-bit count (8 least-significant bits are always zero). */
-#define RPU_GTM_ADDR 0xFFFFFB28
-#define RPU_GTM (*(volatile unsigned long *)RPU_GTMC_ADDR)
-
-
-/* For <asm/page.h> */
-#define PAGE_OFFSET ERAM_ADDR /* minimum allocatable address */
-
-
-/* For <asm/entry.h> */
-/* `R0 RAM', used for a few miscellaneous variables that must be accessible
- using a load instruction relative to R0. The FPGA implementation
- actually has no on-chip RAM, so we use part of main ram just after the
- interrupt vectors. */
-#ifdef __ASSEMBLY__
-#define R0_RAM_ADDR lo(C_SYMBOL_NAME(_r0_ram))
-#else
-extern char _r0_ram;
-#define R0_RAM_ADDR ((unsigned long)&_r0_ram);
-#endif
-
-
-#endif /* __V850_FPGA85E2C_H__ */
+++ /dev/null
-#ifndef _ASM_FUTEX_H
-#define _ASM_FUTEX_H
-
-#include <asm-generic/futex.h>
-
-#endif
+++ /dev/null
-/*
- * include/asm-v850/gbus_int.h -- Midas labs GBUS interrupt support
- *
- * Copyright (C) 2001,02 NEC Corporation
- * Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_GBUS_INT_H__
-#define __V850_GBUS_INT_H__
-
-
-/* The GBUS interrupt interface has 32 interrupts shared among 4
- processor interrupts. The 32 GBUS interrupts are divided into two
- sets of 16 each, for allocating among control registers, etc (there
- are two of each control register, with bits 0-15 controlling an
- interrupt each). */
-
-/* The GBUS interrupts themselves. */
-#define IRQ_GBUS_INT(n) (GBUS_INT_BASE_IRQ + (n))
-#define IRQ_GBUS_INT_NUM 32
-
-/* Control registers. */
-#define GBUS_INT_STATUS_ADDR(w) (GBUS_INT_BASE_ADDR + (w)*0x40)
-#define GBUS_INT_STATUS(w) (*(volatile u16 *)GBUS_INT_STATUS_ADDR(w))
-#define GBUS_INT_CLEAR_ADDR(w) (GBUS_INT_BASE_ADDR + 0x10 + (w)*0x40)
-#define GBUS_INT_CLEAR(w) (*(volatile u16 *)GBUS_INT_CLEAR_ADDR(w))
-#define GBUS_INT_EDGE_ADDR(w) (GBUS_INT_BASE_ADDR + 0x20 + (w)*0x40)
-#define GBUS_INT_EDGE(w) (*(volatile u16 *)GBUS_INT_EDGE_ADDR(w))
-#define GBUS_INT_POLARITY_ADDR(w) (GBUS_INT_BASE_ADDR + 0x30 + (w)*0x40)
-#define GBUS_INT_POLARITY(w) (*(volatile u16 *)GBUS_INT_POLARITY_ADDR(w))
-/* This allows enabling interrupt bits in word W for interrupt GINTn. */
-#define GBUS_INT_ENABLE_ADDR(w, n) \
- (GBUS_INT_BASE_ADDR + 0x100 + (w)*0x10 + (n)*0x20)
-#define GBUS_INT_ENABLE(w, n) (*(volatile u16 *)GBUS_INT_ENABLE_ADDR(w, n))
-
-/* Mapping between kernel interrupt numbers and hardware control regs/bits. */
-#define GBUS_INT_BITS_PER_WORD 16
-#define GBUS_INT_NUM_WORDS (IRQ_GBUS_INT_NUM / GBUS_INT_BITS_PER_WORD)
-#define GBUS_INT_IRQ_WORD(irq) (((irq) - GBUS_INT_BASE_IRQ) >> 4)
-#define GBUS_INT_IRQ_BIT(irq) (((irq) - GBUS_INT_BASE_IRQ) & 0xF)
-#define GBUS_INT_IRQ_MASK(irq) (1 << GBUS_INT_IRQ_BIT(irq))
-
-
-/* Possible priorities for GBUS interrupts. */
-#define GBUS_INT_PRIORITY_HIGH 2
-#define GBUS_INT_PRIORITY_MEDIUM 4
-#define GBUS_INT_PRIORITY_LOW 6
-
-
-#ifndef __ASSEMBLY__
-
-/* Enable interrupt handling for interrupt IRQ. */
-extern void gbus_int_enable_irq (unsigned irq);
-/* Disable interrupt handling for interrupt IRQ. Note that any
- interrupts received while disabled will be delivered once the
- interrupt is enabled again, unless they are explicitly cleared using
- `gbus_int_clear_pending_irq'. */
-extern void gbus_int_disable_irq (unsigned irq);
-/* Return true if interrupt handling for interrupt IRQ is enabled. */
-extern int gbus_int_irq_enabled (unsigned irq);
-/* Disable all GBUS irqs. */
-extern void gbus_int_disable_irqs (void);
-/* Clear any pending interrupts for IRQ. */
-extern void gbus_int_clear_pending_irq (unsigned irq);
-/* Return true if interrupt IRQ is pending (but disabled). */
-extern int gbus_int_irq_pending (unsigned irq);
-
-
-struct gbus_int_irq_init {
- const char *name; /* name of interrupt type */
-
- /* Range of kernel irq numbers for this type:
- BASE, BASE+INTERVAL, ..., BASE+INTERVAL*NUM */
- unsigned base, num, interval;
-
- unsigned priority; /* interrupt priority to assign */
-};
-struct hw_interrupt_type; /* fwd decl */
-
-/* Initialize HW_IRQ_TYPES for GBUS irqs described in array
- INITS (which is terminated by an entry with the name field == 0). */
-extern void gbus_int_init_irq_types (struct gbus_int_irq_init *inits,
- struct hw_interrupt_type *hw_irq_types);
-
-/* Initialize GBUS interrupts. */
-extern void gbus_int_init_irqs (void);
-
-#endif /* !__ASSEMBLY__ */
-
-
-#endif /* __V850_GBUS_INT_H__ */
+++ /dev/null
-#ifndef __V850_HARDIRQ_H__
-#define __V850_HARDIRQ_H__
-
-#include <linux/threads.h>
-#include <linux/cache.h>
-
-#include <asm/irq.h>
-
-typedef struct {
- unsigned int __softirq_pending;
-} ____cacheline_aligned irq_cpustat_t;
-
-#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
-
-#define HARDIRQ_BITS 8
-
-/*
- * The hardirq mask has to be large enough to have
- * space for potentially all IRQ sources in the system
- * nesting on a single CPU:
- */
-#if (1 << HARDIRQ_BITS) < NR_IRQS
-# error HARDIRQ_BITS is too low!
-#endif
-
-void ack_bad_irq(unsigned int irq);
-
-#endif /* __V850_HARDIRQ_H__ */
+++ /dev/null
-/*
- * include/asm-v850/highres_timer.h -- High resolution timing routines
- *
- * Copyright (C) 2001,03 NEC Electronics Corporation
- * Copyright (C) 2001,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_HIGHRES_TIMER_H__
-#define __V850_HIGHRES_TIMER_H__
-
-#ifndef __ASSEMBLY__
-#include <linux/time.h>
-#endif
-
-#include <asm/entry.h>
-
-
-/* Frequency of the `slow ticks' (one tick each time the fast-tick
- counter overflows). */
-#define HIGHRES_TIMER_SLOW_TICK_RATE 25
-
-/* Which timer in the V850E `Timer D' we use. */
-#define HIGHRES_TIMER_TIMER_D_UNIT 3
-
-
-#ifndef __ASSEMBLY__
-
-extern void highres_timer_start (void), highres_timer_stop (void);
-extern void highres_timer_reset (void);
-extern void highres_timer_read_ticks (u32 *slow_ticks, u32 *fast_ticks);
-extern void highres_timer_ticks_to_timeval (u32 slow_ticks, u32 fast_ticks,
- struct timeval *tv);
-extern void highres_timer_read (struct timeval *tv);
-
-#endif /* !__ASSEMBLY__ */
-
-
-#endif /* __V850_HIGHRES_TIMER_H__ */
+++ /dev/null
-#ifndef __V850_HW_IRQ_H__
-#define __V850_HW_IRQ_H__
-
-#endif /* __V850_HW_IRQ_H__ */
+++ /dev/null
-/*
- * include/asm-v850/io.h -- Misc I/O operations
- *
- * Copyright (C) 2001,02,03,04,05 NEC Electronics Corporation
- * Copyright (C) 2001,02,03,04,05 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_IO_H__
-#define __V850_IO_H__
-
-#define IO_SPACE_LIMIT 0xFFFFFFFF
-
-#define readb(addr) \
- ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; })
-#define readw(addr) \
- ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; })
-#define readl(addr) \
- ({ unsigned long __v = (*(volatile unsigned long *) (addr)); __v; })
-
-#define readb_relaxed(a) readb(a)
-#define readw_relaxed(a) readw(a)
-#define readl_relaxed(a) readl(a)
-
-#define writeb(val, addr) \
- (void)((*(volatile unsigned char *) (addr)) = (val))
-#define writew(val, addr) \
- (void)((*(volatile unsigned short *) (addr)) = (val))
-#define writel(val, addr) \
- (void)((*(volatile unsigned int *) (addr)) = (val))
-
-#define __raw_readb readb
-#define __raw_readw readw
-#define __raw_readl readl
-#define __raw_writeb writeb
-#define __raw_writew writew
-#define __raw_writel writel
-
-#define inb(addr) readb (addr)
-#define inw(addr) readw (addr)
-#define inl(addr) readl (addr)
-#define outb(x, addr) ((void) writeb (x, addr))
-#define outw(x, addr) ((void) writew (x, addr))
-#define outl(x, addr) ((void) writel (x, addr))
-
-#define inb_p(port) inb((port))
-#define outb_p(val, port) outb((val), (port))
-#define inw_p(port) inw((port))
-#define outw_p(val, port) outw((val), (port))
-#define inl_p(port) inl((port))
-#define outl_p(val, port) outl((val), (port))
-
-static inline void insb (unsigned long port, void *dst, unsigned long count)
-{
- unsigned char *p = dst;
- while (count--)
- *p++ = inb (port);
-}
-static inline void insw (unsigned long port, void *dst, unsigned long count)
-{
- unsigned short *p = dst;
- while (count--)
- *p++ = inw (port);
-}
-static inline void insl (unsigned long port, void *dst, unsigned long count)
-{
- unsigned long *p = dst;
- while (count--)
- *p++ = inl (port);
-}
-
-static inline void
-outsb (unsigned long port, const void *src, unsigned long count)
-{
- const unsigned char *p = src;
- while (count--)
- outb (*p++, port);
-}
-static inline void
-outsw (unsigned long port, const void *src, unsigned long count)
-{
- const unsigned short *p = src;
- while (count--)
- outw (*p++, port);
-}
-static inline void
-outsl (unsigned long port, const void *src, unsigned long count)
-{
- const unsigned long *p = src;
- while (count--)
- outl (*p++, port);
-}
-
-
-/* Some places try to pass in an loff_t for PHYSADDR (?!), so we cast it to
- long before casting it to a pointer to avoid compiler warnings. */
-#define ioremap(physaddr, size) ((void __iomem *)(unsigned long)(physaddr))
-#define iounmap(addr) ((void)0)
-
-#define ioremap_nocache(physaddr, size) ioremap (physaddr, size)
-#define ioremap_writethrough(physaddr, size) ioremap (physaddr, size)
-#define ioremap_fullcache(physaddr, size) ioremap (physaddr, size)
-
-#define ioread8(addr) readb (addr)
-#define ioread16(addr) readw (addr)
-#define ioread32(addr) readl (addr)
-#define iowrite8(val, addr) writeb (val, addr)
-#define iowrite16(val, addr) writew (val, addr)
-#define iowrite32(val, addr) writel (val, addr)
-
-#define mmiowb()
-
-#define page_to_phys(page) ((page - mem_map) << PAGE_SHIFT)
-#if 0
-/* This is really stupid; don't define it. */
-#define page_to_bus(page) page_to_phys (page)
-#endif
-
-/* Conversion between virtual and physical mappings. */
-#define phys_to_virt(addr) ((void *)__phys_to_virt (addr))
-#define virt_to_phys(addr) ((unsigned long)__virt_to_phys (addr))
-
-#define memcpy_fromio(dst, src, len) memcpy (dst, (void *)src, len)
-#define memcpy_toio(dst, src, len) memcpy ((void *)dst, src, len)
-
-/*
- * Convert a physical pointer to a virtual kernel pointer for /dev/mem
- * access
- */
-#define xlate_dev_mem_ptr(p) __va(p)
-
-/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p) p
-
-#endif /* __V850_IO_H__ */
+++ /dev/null
-#include <asm-generic/ioctl.h>
+++ /dev/null
-#ifndef __V850_IOCTLS_H__
-#define __V850_IOCTLS_H__
-
-#include <asm/ioctl.h>
-
-/* 0x54 is just a magic number to make these relatively unique ('T') */
-
-#define TCGETS 0x5401
-#define TCSETS 0x5402
-#define TCSETSW 0x5403
-#define TCSETSF 0x5404
-#define TCGETA 0x5405
-#define TCSETA 0x5406
-#define TCSETAW 0x5407
-#define TCSETAF 0x5408
-#define TCSBRK 0x5409
-#define TCXONC 0x540A
-#define TCFLSH 0x540B
-#define TIOCEXCL 0x540C
-#define TIOCNXCL 0x540D
-#define TIOCSCTTY 0x540E
-#define TIOCGPGRP 0x540F
-#define TIOCSPGRP 0x5410
-#define TIOCOUTQ 0x5411
-#define TIOCSTI 0x5412
-#define TIOCGWINSZ 0x5413
-#define TIOCSWINSZ 0x5414
-#define TIOCMGET 0x5415
-#define TIOCMBIS 0x5416
-#define TIOCMBIC 0x5417
-#define TIOCMSET 0x5418
-#define TIOCGSOFTCAR 0x5419
-#define TIOCSSOFTCAR 0x541A
-#define FIONREAD 0x541B
-#define TIOCINQ FIONREAD
-#define TIOCLINUX 0x541C
-#define TIOCCONS 0x541D
-#define TIOCGSERIAL 0x541E
-#define TIOCSSERIAL 0x541F
-#define TIOCPKT 0x5420
-#define FIONBIO 0x5421
-#define TIOCNOTTY 0x5422
-#define TIOCSETD 0x5423
-#define TIOCGETD 0x5424
-#define TCSBRKP 0x5425 /* Needed for POSIX tcsendbreak() */
-#define TIOCSBRK 0x5427 /* BSD compatibility */
-#define TIOCCBRK 0x5428 /* BSD compatibility */
-#define TIOCGSID 0x5429 /* Return the session ID of FD */
-#define TCGETS2 _IOR('T',0x2A, struct termios2)
-#define TCSETS2 _IOW('T',0x2B, struct termios2)
-#define TCSETSW2 _IOW('T',0x2C, struct termios2)
-#define TCSETSF2 _IOW('T',0x2D, struct termios2)
-#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
-#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
-
-#define FIONCLEX 0x5450 /* these numbers need to be adjusted. */
-#define FIOCLEX 0x5451
-#define FIOASYNC 0x5452
-#define TIOCSERCONFIG 0x5453
-#define TIOCSERGWILD 0x5454
-#define TIOCSERSWILD 0x5455
-#define TIOCGLCKTRMIOS 0x5456
-#define TIOCSLCKTRMIOS 0x5457
-#define TIOCSERGSTRUCT 0x5458 /* For debugging only */
-#define TIOCSERGETLSR 0x5459 /* Get line status register */
-#define TIOCSERGETMULTI 0x545A /* Get multiport config */
-#define TIOCSERSETMULTI 0x545B /* Set multiport config */
-
-#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */
-#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */
-#define FIOQSIZE 0x545E
-
-/* Used for packet mode */
-#define TIOCPKT_DATA 0
-#define TIOCPKT_FLUSHREAD 1
-#define TIOCPKT_FLUSHWRITE 2
-#define TIOCPKT_STOP 4
-#define TIOCPKT_START 8
-#define TIOCPKT_NOSTOP 16
-#define TIOCPKT_DOSTOP 32
-
-#define TIOCSER_TEMT 0x01 /* Transmitter physically empty */
-
-#endif /* __V850_IOCTLS_H__ */
+++ /dev/null
-#ifndef __V850E_IPCBUF_H__
-#define __V850E_IPCBUF_H__
-
-/*
- * The user_ipc_perm structure for v850e architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 32-bit mode_t and seq
- * - 2 miscellaneous 32-bit values
- */
-
-struct ipc64_perm
-{
- __kernel_key_t key;
- __kernel_uid32_t uid;
- __kernel_gid32_t gid;
- __kernel_uid32_t cuid;
- __kernel_gid32_t cgid;
- __kernel_mode_t mode;
- unsigned short __pad1;
- unsigned short seq;
- unsigned short __pad2;
- unsigned long __unused1;
- unsigned long __unused2;
-};
-
-#endif /* __V850E_IPCBUF_H__ */
+++ /dev/null
-/*
- * include/asm-v850/irq.h -- Machine interrupt handling
- *
- * Copyright (C) 2001,02,04 NEC Electronics Corporation
- * Copyright (C) 2001,02,04 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_IRQ_H__
-#define __V850_IRQ_H__
-
-#include <asm/machdep.h>
-
-/* Default NUM_MACH_IRQS. */
-#ifndef NUM_MACH_IRQS
-#define NUM_MACH_IRQS NUM_CPU_IRQS
-#endif
-
-/* NMIs have IRQ numbers from FIRST_NMI to FIRST_NMI+NUM_NMIS-1. */
-#define FIRST_NMI NUM_MACH_IRQS
-#define IRQ_NMI(n) (FIRST_NMI + (n))
-/* v850 processors have 3 non-maskable interrupts. */
-#define NUM_NMIS 3
-
-/* Includes both maskable and non-maskable irqs. */
-#define NR_IRQS (NUM_MACH_IRQS + NUM_NMIS)
-
-
-#ifndef __ASSEMBLY__
-
-struct pt_regs;
-struct hw_interrupt_type;
-struct irqaction;
-
-#define irq_canonicalize(irq) (irq)
-
-/* Initialize irq handling for IRQs.
- BASE_IRQ, BASE_IRQ+INTERVAL, ..., BASE_IRQ+NUM*INTERVAL
- to IRQ_TYPE. An IRQ_TYPE of 0 means to use a generic interrupt type. */
-extern void
-init_irq_handlers (int base_irq, int num, int interval,
- struct hw_interrupt_type *irq_type);
-
-/* Handle interrupt IRQ. REGS are the registers at the time of ther
- interrupt. */
-extern unsigned int handle_irq (int irq, struct pt_regs *regs);
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* __V850_IRQ_H__ */
+++ /dev/null
-#include <asm-generic/irq_regs.h>
+++ /dev/null
-#include <asm-generic/kdebug.h>
+++ /dev/null
-#ifndef __V850_KMAP_TYPES_H__
-#define __V850_KMAP_TYPES_H__
-
-enum km_type {
- KM_BOUNCE_READ,
- KM_SKB_SUNRPC_DATA,
- KM_SKB_DATA_SOFTIRQ,
- KM_USER0,
- KM_USER1,
- KM_BIO_SRC_IRQ,
- KM_BIO_DST_IRQ,
- KM_PTE0,
- KM_PTE1,
- KM_IRQ0,
- KM_IRQ1,
- KM_TYPE_NR
-};
-
-#endif /* __V850_KMAP_TYPES_H__ */
+++ /dev/null
-#ifndef __LINUX_KVM_V850_H
-#define __LINUX_KVM_V850_H
-
-/* v850 does not support KVM */
-
-#endif
+++ /dev/null
-#ifndef __ASM_LINKAGE_H
-#define __ASM_LINKAGE_H
-
-#ifdef __ASSEMBLY__
-#include <asm/asm.h>
-#endif
-
-#endif
+++ /dev/null
-#ifndef __V850_LOCAL_H__
-#define __V850_LOCAL_H__
-
-#include <asm-generic/local.h>
-
-#endif /* __V850_LOCAL_H__ */
+++ /dev/null
-/*
- * include/asm-v850/ma.h -- V850E/MA series of cpu chips
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_MA_H__
-#define __V850_MA_H__
-
-/* The MA series uses the V850E cpu core. */
-#include <asm/v850e.h>
-
-
-/* For <asm/entry.h> */
-/* We use on-chip RAM, for a few miscellaneous variables that must be
- accessible using a load instruction relative to R0. The amount
- varies between chip models, but there's always at least 4K, and it
- should always start at FFFFC000. */
-#define R0_RAM_ADDR 0xFFFFC000
-
-
-/* MA series UART details. */
-#define V850E_UART_BASE_FREQ CPU_CLOCK_FREQ
-
-/* This is a function that gets called before configuring the UART. */
-#define V850E_UART_PRE_CONFIGURE ma_uart_pre_configure
-#ifndef __ASSEMBLY__
-extern void ma_uart_pre_configure (unsigned chan,
- unsigned cflags, unsigned baud);
-#endif
-
-
-/* MA series timer C details. */
-#define V850E_TIMER_C_BASE_ADDR 0xFFFFF600
-
-
-/* MA series timer D details. */
-#define V850E_TIMER_D_BASE_ADDR 0xFFFFF540
-#define V850E_TIMER_D_TMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x0)
-#define V850E_TIMER_D_CMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x2)
-#define V850E_TIMER_D_TMCD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x4)
-
-#define V850E_TIMER_D_BASE_FREQ CPU_CLOCK_FREQ
-
-
-/* Port 0 */
-/* Direct I/O. Bits 0-7 are pins P00-P07. */
-#define MA_PORT0_IO_ADDR 0xFFFFF400
-#define MA_PORT0_IO (*(volatile u8 *)MA_PORT0_IO_ADDR)
-/* Port mode (for direct I/O, 0 = output, 1 = input). */
-#define MA_PORT0_PM_ADDR 0xFFFFF420
-#define MA_PORT0_PM (*(volatile u8 *)MA_PORT0_PM_ADDR)
-/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */
-#define MA_PORT0_PMC_ADDR 0xFFFFF440
-#define MA_PORT0_PMC (*(volatile u8 *)MA_PORT0_PMC_ADDR)
-/* Port function control (for P04-P07, 0 = IRQ, 1 = DMARQ). */
-#define MA_PORT0_PFC_ADDR 0xFFFFF460
-#define MA_PORT0_PFC (*(volatile u8 *)MA_PORT0_PFC_ADDR)
-
-/* Port 1 */
-/* Direct I/O. Bits 0-3 are pins P10-P13. */
-#define MA_PORT1_IO_ADDR 0xFFFFF402
-#define MA_PORT1_IO (*(volatile u8 *)MA_PORT1_IO_ADDR)
-/* Port mode (for direct I/O, 0 = output, 1 = input). */
-#define MA_PORT1_PM_ADDR 0xFFFFF420
-#define MA_PORT1_PM (*(volatile u8 *)MA_PORT1_PM_ADDR)
-/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */
-#define MA_PORT1_PMC_ADDR 0xFFFFF442
-#define MA_PORT1_PMC (*(volatile u8 *)MA_PORT1_PMC_ADDR)
-
-/* Port 4 */
-/* Direct I/O. Bits 0-5 are pins P40-P45. */
-#define MA_PORT4_IO_ADDR 0xFFFFF408
-#define MA_PORT4_IO (*(volatile u8 *)MA_PORT4_IO_ADDR)
-/* Port mode (for direct I/O, 0 = output, 1 = input). */
-#define MA_PORT4_PM_ADDR 0xFFFFF428
-#define MA_PORT4_PM (*(volatile u8 *)MA_PORT4_PM_ADDR)
-/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */
-#define MA_PORT4_PMC_ADDR 0xFFFFF448
-#define MA_PORT4_PMC (*(volatile u8 *)MA_PORT4_PMC_ADDR)
-/* Port function control (for serial interfaces, 0 = CSI, 1 = UART). */
-#define MA_PORT4_PFC_ADDR 0xFFFFF468
-#define MA_PORT4_PFC (*(volatile u8 *)MA_PORT4_PFC_ADDR)
-
-
-#ifndef __ASSEMBLY__
-
-/* Initialize MA chip interrupts. */
-extern void ma_init_irqs (void);
-
-#endif /* !__ASSEMBLY__ */
-
-
-#endif /* __V850_MA_H__ */
+++ /dev/null
-/*
- * include/asm-v850/ma1.h -- V850E/MA1 cpu chip
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_MA1_H__
-#define __V850_MA1_H__
-
-/* Inherit more generic details from MA series. */
-#include <asm/ma.h>
-
-
-#define CPU_MODEL "v850e/ma1"
-#define CPU_MODEL_LONG "NEC V850E/MA1"
-
-
-/* Hardware-specific interrupt numbers (in the kernel IRQ namespace). */
-#define IRQ_INTOV(n) (n) /* 0-3 */
-#define IRQ_INTOV_NUM 4
-#define IRQ_INTP(n) (0x4 + (n)) /* Pnnn (pin) interrupts */
-#define IRQ_INTP_NUM 24
-#define IRQ_INTCMD(n) (0x1c + (n)) /* interval timer interrupts 0-3 */
-#define IRQ_INTCMD_NUM 4
-#define IRQ_INTDMA(n) (0x20 + (n)) /* DMA interrupts 0-3 */
-#define IRQ_INTDMA_NUM 4
-#define IRQ_INTCSI(n) (0x24 + (n)*4)/* CSI 0-2 transmit/receive completion */
-#define IRQ_INTCSI_NUM 3
-#define IRQ_INTSER(n) (0x25 + (n)*4) /* UART 0-2 reception error */
-#define IRQ_INTSER_NUM 3
-#define IRQ_INTSR(n) (0x26 + (n)*4) /* UART 0-2 reception completion */
-#define IRQ_INTSR_NUM 3
-#define IRQ_INTST(n) (0x27 + (n)*4) /* UART 0-2 transmission completion */
-#define IRQ_INTST_NUM 3
-
-#define NUM_CPU_IRQS 0x30
-
-
-/* The MA1 has a UART with 3 channels. */
-#define V850E_UART_NUM_CHANNELS 3
-
-
-#endif /* __V850_MA1_H__ */
+++ /dev/null
-/*
- * include/asm-v850/machdep.h -- Machine-dependent definitions
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_MACHDEP_H__
-#define __V850_MACHDEP_H__
-
-
-/* chips */
-#ifdef CONFIG_V850E_MA1
-#include <asm/ma1.h>
-#endif
-#ifdef CONFIG_V850E_ME2
-#include <asm/me2.h>
-#endif
-#ifdef CONFIG_V850E_TEG
-#include <asm/teg.h>
-#endif
-
-/* These are both chips _and_ platforms, so put them in the middle... */
-#ifdef CONFIG_V850E2_ANNA
-#include <asm/anna.h>
-#endif
-#ifdef CONFIG_V850E_AS85EP1
-#include <asm/as85ep1.h>
-#endif
-
-/* platforms */
-#ifdef CONFIG_RTE_CB_MA1
-#include <asm/rte_ma1_cb.h>
-#endif
-#ifdef CONFIG_RTE_CB_ME2
-#include <asm/rte_me2_cb.h>
-#endif
-#ifdef CONFIG_RTE_CB_NB85E
-#include <asm/rte_nb85e_cb.h>
-#endif
-#ifdef CONFIG_V850E_SIM
-#include <asm/sim.h>
-#endif
-#ifdef CONFIG_V850E2_SIM85E2C
-#include <asm/sim85e2c.h>
-#endif
-#ifdef CONFIG_V850E2_SIM85E2S
-#include <asm/sim85e2s.h>
-#endif
-#ifdef CONFIG_V850E2_FPGA85E2C
-#include <asm/fpga85e2c.h>
-#endif
-
-#endif /* __V850_MACHDEP_H__ */
+++ /dev/null
-/*
- * include/asm-v850/macrology.h -- Various useful CPP macros
- *
- * Copyright (C) 2001 NEC Corporation
- * Copyright (C) 2001 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#define macrology_paste(arg1, arg2) macrology_paste_1(arg1, arg2)
-#define macrology_paste_1(arg1, arg2) arg1 ## arg2
-#define macrology_stringify(sym) macrology_stringify_1(sym)
-#define macrology_stringify_1(sym) #sym
+++ /dev/null
-/*
- * include/asm-v850/me2.h -- V850E/ME2 cpu chip
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_ME2_H__
-#define __V850_ME2_H__
-
-#include <asm/v850e.h>
-#include <asm/v850e_cache.h>
-
-
-#define CPU_MODEL "v850e/me2"
-#define CPU_MODEL_LONG "NEC V850E/ME2"
-
-
-/* Hardware-specific interrupt numbers (in the kernel IRQ namespace). */
-#define IRQ_INTP(n) (n) /* Pnnn (pin) interrupts */
-#define IRQ_INTP_NUM 31
-#define IRQ_INTCMD(n) (0x31 + (n)) /* interval timer interrupts 0-3 */
-#define IRQ_INTCMD_NUM 4
-#define IRQ_INTDMA(n) (0x41 + (n)) /* DMA interrupts 0-3 */
-#define IRQ_INTDMA_NUM 4
-#define IRQ_INTUBTIRE(n) (0x49 + (n)*5)/* UARTB 0-1 reception error */
-#define IRQ_INTUBTIRE_NUM 2
-#define IRQ_INTUBTIR(n) (0x4a + (n)*5) /* UARTB 0-1 reception complete */
-#define IRQ_INTUBTIR_NUM 2
-#define IRQ_INTUBTIT(n) (0x4b + (n)*5) /* UARTB 0-1 transmission complete */
-#define IRQ_INTUBTIT_NUM 2
-#define IRQ_INTUBTIF(n) (0x4c + (n)*5) /* UARTB 0-1 FIFO trans. complete */
-#define IRQ_INTUBTIF_NUM 2
-#define IRQ_INTUBTITO(n) (0x4d + (n)*5) /* UARTB 0-1 reception timeout */
-#define IRQ_INTUBTITO_NUM 2
-
-/* For <asm/irq.h> */
-#define NUM_CPU_IRQS 0x59 /* V850E/ME2 */
-
-
-/* For <asm/entry.h> */
-/* We use on-chip RAM, for a few miscellaneous variables that must be
- accessible using a load instruction relative to R0. */
-#define R0_RAM_ADDR 0xFFFFB000 /* V850E/ME2 */
-
-
-/* V850E/ME2 UARTB details.*/
-#define V850E_UART_NUM_CHANNELS 2
-#define V850E_UARTB_BASE_FREQ (CPU_CLOCK_FREQ / 4)
-
-/* This is a function that gets called before configuring the UART. */
-#define V850E_UART_PRE_CONFIGURE me2_uart_pre_configure
-#ifndef __ASSEMBLY__
-extern void me2_uart_pre_configure (unsigned chan,
- unsigned cflags, unsigned baud);
-#endif /* __ASSEMBLY__ */
-
-
-/* V850E/ME2 timer C details. */
-#define V850E_TIMER_C_BASE_ADDR 0xFFFFF600
-
-
-/* V850E/ME2 timer D details. */
-#define V850E_TIMER_D_BASE_ADDR 0xFFFFF540
-#define V850E_TIMER_D_TMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x0)
-#define V850E_TIMER_D_CMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x2)
-#define V850E_TIMER_D_TMCD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x4)
-
-#define V850E_TIMER_D_BASE_FREQ (CPU_CLOCK_FREQ / 2)
-
-
-/* Select iRAM mode. */
-#define ME2_IRAMM_ADDR 0xFFFFF80A
-#define ME2_IRAMM (*(volatile u8*)ME2_IRAMM_ADDR)
-
-
-/* Interrupt edge-detection configuration. INTF(n) and INTR(n) are only
- valid for n == 1, 2, or 5. */
-#define ME2_INTF_ADDR(n) (0xFFFFFC00 + (n) * 0x2)
-#define ME2_INTF(n) (*(volatile u8*)ME2_INTF_ADDR(n))
-#define ME2_INTR_ADDR(n) (0xFFFFFC20 + (n) * 0x2)
-#define ME2_INTR(n) (*(volatile u8*)ME2_INTR_ADDR(n))
-#define ME2_INTFAL_ADDR 0xFFFFFC10
-#define ME2_INTFAL (*(volatile u8*)ME2_INTFAL_ADDR)
-#define ME2_INTRAL_ADDR 0xFFFFFC30
-#define ME2_INTRAL (*(volatile u8*)ME2_INTRAL_ADDR)
-#define ME2_INTFDH_ADDR 0xFFFFFC16
-#define ME2_INTFDH (*(volatile u16*)ME2_INTFDH_ADDR)
-#define ME2_INTRDH_ADDR 0xFFFFFC36
-#define ME2_INTRDH (*(volatile u16*)ME2_INTRDH_ADDR)
-#define ME2_SESC_ADDR(n) (0xFFFFF609 + (n) * 0x10)
-#define ME2_SESC(n) (*(volatile u8*)ME2_SESC_ADDR(n))
-#define ME2_SESA10_ADDR 0xFFFFF5AD
-#define ME2_SESA10 (*(volatile u8*)ME2_SESA10_ADDR)
-#define ME2_SESA11_ADDR 0xFFFFF5DD
-#define ME2_SESA11 (*(volatile u8*)ME2_SESA11_ADDR)
-
-
-/* Port 1 */
-/* Direct I/O. Bits 0-3 are pins P10-P13. */
-#define ME2_PORT1_IO_ADDR 0xFFFFF402
-#define ME2_PORT1_IO (*(volatile u8 *)ME2_PORT1_IO_ADDR)
-/* Port mode (for direct I/O, 0 = output, 1 = input). */
-#define ME2_PORT1_PM_ADDR 0xFFFFF422
-#define ME2_PORT1_PM (*(volatile u8 *)ME2_PORT1_PM_ADDR)
-/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */
-#define ME2_PORT1_PMC_ADDR 0xFFFFF442
-#define ME2_PORT1_PMC (*(volatile u8 *)ME2_PORT1_PMC_ADDR)
-/* Port function control (for serial interfaces, 0 = CSI30, 1 = UARTB0 ). */
-#define ME2_PORT1_PFC_ADDR 0xFFFFF462
-#define ME2_PORT1_PFC (*(volatile u8 *)ME2_PORT1_PFC_ADDR)
-
-/* Port 2 */
-/* Direct I/O. Bits 0-3 are pins P20-P25. */
-#define ME2_PORT2_IO_ADDR 0xFFFFF404
-#define ME2_PORT2_IO (*(volatile u8 *)ME2_PORT2_IO_ADDR)
-/* Port mode (for direct I/O, 0 = output, 1 = input). */
-#define ME2_PORT2_PM_ADDR 0xFFFFF424
-#define ME2_PORT2_PM (*(volatile u8 *)ME2_PORT2_PM_ADDR)
-/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */
-#define ME2_PORT2_PMC_ADDR 0xFFFFF444
-#define ME2_PORT2_PMC (*(volatile u8 *)ME2_PORT2_PMC_ADDR)
-/* Port function control (for serial interfaces, 0 = INTP2x, 1 = UARTB1 ). */
-#define ME2_PORT2_PFC_ADDR 0xFFFFF464
-#define ME2_PORT2_PFC (*(volatile u8 *)ME2_PORT2_PFC_ADDR)
-
-/* Port 5 */
-/* Direct I/O. Bits 0-5 are pins P50-P55. */
-#define ME2_PORT5_IO_ADDR 0xFFFFF40A
-#define ME2_PORT5_IO (*(volatile u8 *)ME2_PORT5_IO_ADDR)
-/* Port mode (for direct I/O, 0 = output, 1 = input). */
-#define ME2_PORT5_PM_ADDR 0xFFFFF42A
-#define ME2_PORT5_PM (*(volatile u8 *)ME2_PORT5_PM_ADDR)
-/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */
-#define ME2_PORT5_PMC_ADDR 0xFFFFF44A
-#define ME2_PORT5_PMC (*(volatile u8 *)ME2_PORT5_PMC_ADDR)
-/* Port function control (). */
-#define ME2_PORT5_PFC_ADDR 0xFFFFF46A
-#define ME2_PORT5_PFC (*(volatile u8 *)ME2_PORT5_PFC_ADDR)
-
-/* Port 6 */
-/* Direct I/O. Bits 5-7 are pins P65-P67. */
-#define ME2_PORT6_IO_ADDR 0xFFFFF40C
-#define ME2_PORT6_IO (*(volatile u8 *)ME2_PORT6_IO_ADDR)
-/* Port mode (for direct I/O, 0 = output, 1 = input). */
-#define ME2_PORT6_PM_ADDR 0xFFFFF42C
-#define ME2_PORT6_PM (*(volatile u8 *)ME2_PORT6_PM_ADDR)
-/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */
-#define ME2_PORT6_PMC_ADDR 0xFFFFF44C
-#define ME2_PORT6_PMC (*(volatile u8 *)ME2_PORT6_PMC_ADDR)
-/* Port function control (). */
-#define ME2_PORT6_PFC_ADDR 0xFFFFF46C
-#define ME2_PORT6_PFC (*(volatile u8 *)ME2_PORT6_PFC_ADDR)
-
-/* Port 7 */
-/* Direct I/O. Bits 2-7 are pins P72-P77. */
-#define ME2_PORT7_IO_ADDR 0xFFFFF40E
-#define ME2_PORT7_IO (*(volatile u8 *)ME2_PORT7_IO_ADDR)
-/* Port mode (for direct I/O, 0 = output, 1 = input). */
-#define ME2_PORT7_PM_ADDR 0xFFFFF42E
-#define ME2_PORT7_PM (*(volatile u8 *)ME2_PORT7_PM_ADDR)
-/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */
-#define ME2_PORT7_PMC_ADDR 0xFFFFF44E
-#define ME2_PORT7_PMC (*(volatile u8 *)ME2_PORT7_PMC_ADDR)
-/* Port function control (). */
-#define ME2_PORT7_PFC_ADDR 0xFFFFF46E
-#define ME2_PORT7_PFC (*(volatile u8 *)ME2_PORT7_PFC_ADDR)
-
-
-#ifndef __ASSEMBLY__
-/* Initialize V850E/ME2 chip interrupts. */
-extern void me2_init_irqs (void);
-#endif /* !__ASSEMBLY__ */
-
-
-#endif /* __V850_ME2_H__ */
+++ /dev/null
-#ifndef __V850_MMAN_H__
-#define __V850_MMAN_H__
-
-#include <asm-generic/mman.h>
-
-#define MAP_GROWSDOWN 0x0100 /* stack-like segment */
-#define MAP_DENYWRITE 0x0800 /* ETXTBSY */
-#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
-#define MAP_LOCKED 0x2000 /* pages are locked */
-#define MAP_NORESERVE 0x4000 /* don't check for reservations */
-
-#define MCL_CURRENT 1 /* lock all current mappings */
-#define MCL_FUTURE 2 /* lock all future mappings */
-
-#endif /* __V850_MMAN_H__ */
+++ /dev/null
-/* Copyright (C) 2002, 2005, David McCullough <davidm@snapgear.com> */
-
-#ifndef __V850_MMU_H__
-#define __V850_MMU_H__
-
-typedef struct {
- struct vm_list_struct *vmlist;
- unsigned long end_brk;
-} mm_context_t;
-
-#endif /* __V850_MMU_H__ */
+++ /dev/null
-#ifndef __V850_MMU_CONTEXT_H__
-#define __V850_MMU_CONTEXT_H__
-
-#include <asm-generic/mm_hooks.h>
-
-#define destroy_context(mm) ((void)0)
-#define init_new_context(tsk,mm) 0
-#define switch_mm(prev,next,tsk) ((void)0)
-#define deactivate_mm(tsk,mm) do { } while (0)
-#define activate_mm(prev,next) ((void)0)
-#define enter_lazy_tlb(mm,tsk) ((void)0)
-
-#endif /* __V850_MMU_CONTEXT_H__ */
+++ /dev/null
-/*
- * include/asm-v850/module.h -- Architecture-specific module hooks
- *
- * Copyright (C) 2001,02,03,04 NEC Corporation
- * Copyright (C) 2001,02,03,04 Miles Bader <miles@gnu.org>
- * Copyright (C) 2001,03 Rusty Russell
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- *
- * Derived in part from include/asm-ppc/module.h
- */
-
-#ifndef __V850_MODULE_H__
-#define __V850_MODULE_H__
-
-#define MODULE_SYMBOL_PREFIX "_"
-
-struct v850_plt_entry
-{
- /* Indirect jump instruction sequence (6-byte mov + 2-byte jr). */
- unsigned long tramp[2];
-};
-
-struct mod_arch_specific
-{
- /* Indices of PLT sections within module. */
- unsigned int core_plt_section, init_plt_section;
-};
-
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define Elf_Ehdr Elf32_Ehdr
-
-/* Make empty sections for module_frob_arch_sections to expand. */
-#ifdef MODULE
-asm(".section .plt,\"ax\",@nobits; .align 3; .previous");
-asm(".section .init.plt,\"ax\",@nobits; .align 3; .previous");
-#endif
-
-/* We don't do exception tables. */
-struct exception_table_entry;
-static inline const struct exception_table_entry *
-search_extable(const struct exception_table_entry *first,
- const struct exception_table_entry *last,
- unsigned long value)
-{
- return 0;
-}
-#define ARCH_HAS_SEARCH_EXTABLE
-static inline void
-sort_extable(struct exception_table_entry *start,
- struct exception_table_entry *finish)
-{
- /* nada */
-}
-#define ARCH_HAS_SORT_EXTABLE
-
-#endif /* __V850_MODULE_H__ */
+++ /dev/null
-#ifndef __V850_MSGBUF_H__
-#define __V850_MSGBUF_H__
-
-/*
- * The msqid64_ds structure for v850 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem
- * - 2 miscellaneous 32-bit values
- */
-
-struct msqid64_ds {
- struct ipc64_perm msg_perm;
- __kernel_time_t msg_stime; /* last msgsnd time */
- unsigned long __unused1;
- __kernel_time_t msg_rtime; /* last msgrcv time */
- unsigned long __unused2;
- __kernel_time_t msg_ctime; /* last change time */
- unsigned long __unused3;
- unsigned long msg_cbytes; /* current number of bytes on queue */
- unsigned long msg_qnum; /* number of messages in queue */
- unsigned long msg_qbytes; /* max number of bytes on queue */
- __kernel_pid_t msg_lspid; /* pid of last msgsnd */
- __kernel_pid_t msg_lrpid; /* last receive pid */
- unsigned long __unused4;
- unsigned long __unused5;
-};
-
-#endif /* __V850_MSGBUF_H__ */
+++ /dev/null
-/*
- * Pull in the generic implementation for the mutex fastpath.
- *
- * TODO: implement optimized primitives instead, or leave the generic
- * implementation in place, or pick the atomic_xchg() based generic
- * implementation. (see asm-generic/mutex-xchg.h for details)
- */
-
-#include <asm-generic/mutex-dec.h>
+++ /dev/null
-/*
- * include/asm-v850/page.h -- VM ops
- *
- * Copyright (C) 2001,02,03,05 NEC Electronics Corporation
- * Copyright (C) 2001,02,03,05 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_PAGE_H__
-#define __V850_PAGE_H__
-
-#include <asm/machdep.h>
-
-
-#define PAGE_SHIFT 12
-#define PAGE_SIZE (1UL << PAGE_SHIFT)
-#define PAGE_MASK (~(PAGE_SIZE-1))
-
-
-/*
- * PAGE_OFFSET -- the first address of the first page of memory. For archs with
- * no MMU this corresponds to the first free page in physical memory (aligned
- * on a page boundary).
- */
-#ifndef PAGE_OFFSET
-#define PAGE_OFFSET 0x0000000
-#endif
-
-
-#ifndef __ASSEMBLY__
-
-#define STRICT_MM_TYPECHECKS
-
-#define clear_page(page) memset ((void *)(page), 0, PAGE_SIZE)
-#define copy_page(to, from) memcpy ((void *)(to), (void *)from, PAGE_SIZE)
-
-#define clear_user_page(addr, vaddr, page) \
- do { clear_page(addr); \
- flush_dcache_page(page); \
- } while (0)
-#define copy_user_page(to, from, vaddr, page) \
- do { copy_page(to, from); \
- flush_dcache_page(page); \
- } while (0)
-
-#ifdef STRICT_MM_TYPECHECKS
-/*
- * These are used to make use of C type-checking..
- */
-
-typedef struct { unsigned long pte; } pte_t;
-typedef struct { unsigned long pmd; } pmd_t;
-typedef struct { unsigned long pgd; } pgd_t;
-typedef struct { unsigned long pgprot; } pgprot_t;
-typedef struct page *pgtable_t;
-
-#define pte_val(x) ((x).pte)
-#define pmd_val(x) ((x).pmd)
-#define pgd_val(x) ((x).pgd)
-#define pgprot_val(x) ((x).pgprot)
-
-#define __pte(x) ((pte_t) { (x) } )
-#define __pmd(x) ((pmd_t) { (x) } )
-#define __pgd(x) ((pgd_t) { (x) } )
-#define __pgprot(x) ((pgprot_t) { (x) } )
-
-#else /* !STRICT_MM_TYPECHECKS */
-/*
- * .. while these make it easier on the compiler
- */
-
-typedef unsigned long pte_t;
-typedef unsigned long pmd_t;
-typedef unsigned long pgd_t;
-typedef unsigned long pgprot_t;
-
-#define pte_val(x) (x)
-#define pmd_val(x) (x)
-#define pgd_val(x) (x)
-#define pgprot_val(x) (x)
-
-#define __pte(x) (x)
-#define __pmd(x) (x)
-#define __pgd(x) (x)
-#define __pgprot(x) (x)
-
-#endif /* STRICT_MM_TYPECHECKS */
-
-#endif /* !__ASSEMBLY__ */
-
-
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
-
-
-/* No current v850 processor has virtual memory. */
-#define __virt_to_phys(addr) (addr)
-#define __phys_to_virt(addr) (addr)
-
-#define virt_to_pfn(kaddr) (__virt_to_phys (kaddr) >> PAGE_SHIFT)
-#define pfn_to_virt(pfn) __phys_to_virt ((pfn) << PAGE_SHIFT)
-
-#define MAP_NR(kaddr) \
- (((unsigned long)(kaddr) - PAGE_OFFSET) >> PAGE_SHIFT)
-#define virt_to_page(kaddr) (mem_map + MAP_NR (kaddr))
-#define page_to_virt(page) \
- ((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)
-
-#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT)
-#define pfn_valid(pfn) ((pfn) < max_mapnr)
-
-#define virt_addr_valid(kaddr) \
- (((void *)(kaddr) >= (void *)PAGE_OFFSET) && MAP_NR (kaddr) < max_mapnr)
-
-
-#define __pa(x) __virt_to_phys ((unsigned long)(x))
-#define __va(x) ((void *)__phys_to_virt ((unsigned long)(x)))
-
-
-#include <asm-generic/memory_model.h>
-#include <asm-generic/page.h>
-
-#endif /* __V850_PAGE_H__ */
+++ /dev/null
-/*
- * include/asm-v850/param.h -- Varions kernel parameters
- *
- * Copyright (C) 2001,02 NEC Corporation
- * Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_PARAM_H__
-#define __V850_PARAM_H__
-
-#define EXEC_PAGESIZE 4096
-
-#ifndef NOGROUP
-#define NOGROUP (-1)
-#endif
-
-#define MAXHOSTNAMELEN 64 /* max length of hostname */
-
-#ifdef __KERNEL__
-# define HZ CONFIG_HZ
-# define USER_HZ 100
-# define CLOCKS_PER_SEC USER_HZ
-#else
-# define HZ 100
-#endif
-
-#endif /* __V850_PARAM_H__ */
+++ /dev/null
-/*
- * include/asm-v850/pci.h -- PCI support
- *
- * Copyright (C) 2001,02,05 NEC Corporation
- * Copyright (C) 2001,02,05 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_PCI_H__
-#define __V850_PCI_H__
-
-/* Get any platform-dependent definitions. */
-#include <asm/machdep.h>
-
-#define pcibios_scan_all_fns(a, b) 0
-
-/* Generic declarations. */
-
-struct scatterlist;
-
-extern void pcibios_set_master (struct pci_dev *dev);
-
-/* `Grant' to PDEV the memory block at CPU_ADDR, for doing DMA. The
- 32-bit PCI bus mastering address to use is returned. the device owns
- this memory until either pci_unmap_single or pci_dma_sync_single_for_cpu is
- performed. */
-extern dma_addr_t
-pci_map_single (struct pci_dev *pdev, void *cpu_addr, size_t size, int dir);
-
-/* Return to the CPU the PCI DMA memory block previously `granted' to
- PDEV, at DMA_ADDR. */
-extern void
-pci_unmap_single (struct pci_dev *pdev, dma_addr_t dma_addr, size_t size,
- int dir);
-
-/* Make physical memory consistent for a single streaming mode DMA
- translation after a transfer.
-
- If you perform a pci_map_single() but wish to interrogate the
- buffer using the cpu, yet do not wish to teardown the PCI dma
- mapping, you must call this function before doing so. At the next
- point you give the PCI dma address back to the card, you must first
- perform a pci_dma_sync_for_device, and then the device again owns
- the buffer. */
-extern void
-pci_dma_sync_single_for_cpu (struct pci_dev *dev, dma_addr_t dma_addr,
- size_t size, int dir);
-
-extern void
-pci_dma_sync_single_for_device (struct pci_dev *dev, dma_addr_t dma_addr,
- size_t size, int dir);
-
-
-/* Do multiple DMA mappings at once. */
-extern int
-pci_map_sg (struct pci_dev *pdev, struct scatterlist *sg, int sg_len, int dir);
-
-/* Unmap multiple DMA mappings at once. */
-extern void
-pci_unmap_sg (struct pci_dev *pdev, struct scatterlist *sg, int sg_len,
- int dir);
-
-/* SG-list versions of pci_dma_sync functions. */
-extern void
-pci_dma_sync_sg_for_cpu (struct pci_dev *dev,
- struct scatterlist *sg, int sg_len,
- int dir);
-extern void
-pci_dma_sync_sg_for_device (struct pci_dev *dev,
- struct scatterlist *sg, int sg_len,
- int dir);
-
-#define pci_map_page(dev, page, offs, size, dir) \
- pci_map_single(dev, (page_address(page) + (offs)), size, dir)
-#define pci_unmap_page(dev,addr,sz,dir) \
- pci_unmap_single(dev, addr, sz, dir)
-
-/* Test for pci_map_single or pci_map_page having generated an error. */
-static inline int
-pci_dma_mapping_error (dma_addr_t dma_addr)
-{
- return dma_addr == 0;
-}
-
-/* Allocate and map kernel buffer using consistent mode DMA for PCI
- device. Returns non-NULL cpu-view pointer to the buffer if
- successful and sets *DMA_ADDR to the pci side dma address as well,
- else DMA_ADDR is undefined. */
-extern void *
-pci_alloc_consistent (struct pci_dev *pdev, size_t size, dma_addr_t *dma_addr);
-
-/* Free and unmap a consistent DMA buffer. CPU_ADDR and DMA_ADDR must
- be values that were returned from pci_alloc_consistent. SIZE must be
- the same as what as passed into pci_alloc_consistent. References to
- the memory and mappings assosciated with CPU_ADDR or DMA_ADDR past
- this call are illegal. */
-extern void
-pci_free_consistent (struct pci_dev *pdev, size_t size, void *cpu_addr,
- dma_addr_t dma_addr);
-
-#ifdef CONFIG_PCI
-static inline void pci_dma_burst_advice(struct pci_dev *pdev,
- enum pci_dma_burst_strategy *strat,
- unsigned long *strategy_parameter)
-{
- *strat = PCI_DMA_BURST_INFINITY;
- *strategy_parameter = ~0UL;
-}
-#endif
-
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
-extern void pci_iounmap (struct pci_dev *dev, void __iomem *addr);
-
-#endif /* __V850_PCI_H__ */
+++ /dev/null
-#ifndef __V850_PERCPU_H__
-#define __V850_PERCPU_H__
-
-#include <asm-generic/percpu.h>
-
-/* This is a stupid hack to satisfy some grotty implicit include-file
- dependency; basically, <linux/smp.h> uses BUG_ON, which calls BUG, but
- doesn't include the necessary headers to define it. In the twisted
- festering mess of includes this must all be resolved somehow on other
- platforms, but I haven't the faintest idea how, and don't care; here will
- do, even though doesn't actually make any sense. */
-#include <asm/page.h>
-
-#endif /* __V850_PERCPU_H__ */
+++ /dev/null
-/*
- * include/asm-v850/pgalloc.h
- *
- * Copyright (C) 2001,02 NEC Corporation
- * Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_PGALLOC_H__
-#define __V850_PGALLOC_H__
-
-#include <linux/mm.h> /* some crap code expects this */
-
-/* ... and then, there was one. */
-#define check_pgt_cache() ((void)0)
-
-#endif /* __V850_PGALLOC_H__ */
+++ /dev/null
-#ifndef __V850_PGTABLE_H__
-#define __V850_PGTABLE_H__
-
-#include <asm-generic/4level-fixup.h>
-
-#include <asm/page.h>
-
-
-#define pgd_present(pgd) (1) /* pages are always present on NO_MM */
-#define pgd_none(pgd) (0)
-#define pgd_bad(pgd) (0)
-#define pgd_clear(pgdp) ((void)0)
-
-#define pmd_offset(a, b) ((void *)0)
-
-#define kern_addr_valid(addr) (1)
-
-
-#define __swp_type(x) (0)
-#define __swp_offset(x) (0)
-#define __swp_entry(typ,off) ((swp_entry_t) { ((typ) | ((off) << 7)) })
-#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
-#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
-
-static inline int pte_file (pte_t pte) { return 0; }
-
-
-/* These mean nothing to !CONFIG_MMU. */
-#define PAGE_NONE __pgprot(0)
-#define PAGE_SHARED __pgprot(0)
-#define PAGE_COPY __pgprot(0)
-#define PAGE_READONLY __pgprot(0)
-#define PAGE_KERNEL __pgprot(0)
-
-
-/*
- * ZERO_PAGE is a global shared page that is always zero: used
- * for zero-mapped memory areas etc. When CONFIG_MMU is not defined, this
- * should never actually be used, so just define it to something that's
- * will hopefully cause a bus error if it is.
- */
-#define ZERO_PAGE(vaddr) ((void *)0x87654321)
-
-
-/* Some bogus code in procfs uses these; whatever. */
-#define VMALLOC_START 0
-#define VMALLOC_END (~0)
-
-
-extern void paging_init (void);
-#define swapper_pg_dir ((pgd_t *) 0)
-
-#define pgtable_cache_init() ((void)0)
-
-
-extern unsigned int kobjsize(const void *objp);
-
-
-#endif /* __V850_PGTABLE_H__ */
+++ /dev/null
-#ifndef __V850_POLL_H__
-#define __V850_POLL_H__
-
-#define POLLWRNORM POLLOUT
-#define POLLWRBAND 0x0100
-
-#include <asm-generic/poll.h>
-
-#endif /* __V850_POLL_H__ */
+++ /dev/null
-/*
- * include/asm-v850/posix_types.h -- Kernel versions of standard types
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_POSIX_TYPES_H__
-#define __V850_POSIX_TYPES_H__
-
-typedef unsigned long __kernel_ino_t;
-typedef unsigned long long __kernel_ino64_t;
-typedef unsigned int __kernel_mode_t;
-typedef unsigned int __kernel_nlink_t;
-typedef long __kernel_off_t;
-typedef long long __kernel_loff_t;
-typedef int __kernel_pid_t;
-typedef unsigned short __kernel_ipc_pid_t;
-typedef unsigned int __kernel_uid_t;
-typedef unsigned int __kernel_gid_t;
-typedef unsigned int __kernel_size_t;
-typedef int __kernel_ssize_t;
-typedef int __kernel_ptrdiff_t;
-typedef long __kernel_time_t;
-typedef long __kernel_suseconds_t;
-typedef long __kernel_clock_t;
-typedef int __kernel_timer_t;
-typedef int __kernel_clockid_t;
-typedef int __kernel_daddr_t;
-typedef char * __kernel_caddr_t;
-typedef unsigned short __kernel_uid16_t;
-typedef unsigned short __kernel_gid16_t;
-typedef unsigned int __kernel_uid32_t;
-typedef unsigned int __kernel_gid32_t;
-
-/* Some bogus code depends on this; we don't care. */
-typedef __kernel_uid_t __kernel_old_uid_t;
-typedef unsigned int __kernel_old_dev_t;
-
-typedef struct {
- int val[2];
-} __kernel_fsid_t;
-
-
-#if defined(__KERNEL__)
-
-/* We used to include <asm/bitops.h> here, which seems the right thing, but
- it caused nasty include-file definition order problems. Removing the
- include seems to work, so fingers crossed... */
-
-#undef __FD_SET
-#define __FD_SET(fd, fd_set) \
- __set_bit (fd, (void *)&((__kernel_fd_set *)fd_set)->fds_bits)
-#undef __FD_CLR
-#define __FD_CLR(fd, fd_set) \
- __clear_bit (fd, (void *)&((__kernel_fd_set *)fd_set)->fds_bits)
-#undef __FD_ISSET
-#define __FD_ISSET(fd, fd_set) \
- __test_bit (fd, (void *)&((__kernel_fd_set *)fd_set)->fds_bits)
-#undef __FD_ZERO
-#define __FD_ZERO(fd_set) \
- memset (fd_set, 0, sizeof (*(fd_set *)fd_set))
-
-#endif /* defined(__KERNEL__) */
-
-#endif /* __V850_POSIX_TYPES_H__ */
+++ /dev/null
-/*
- * include/asm-v850/processor.h
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_PROCESSOR_H__
-#define __V850_PROCESSOR_H__
-
-#ifndef __ASSEMBLY__ /* <linux/thread_info.h> is not asm-safe. */
-#include <linux/thread_info.h>
-#endif
-
-#include <linux/compiler.h>
-#include <asm/ptrace.h>
-#include <asm/entry.h>
-
-/* Some code expects `segment' stuff to be defined here. */
-#include <asm/segment.h>
-
-
-/*
- * The only places this is used seem to be horrible bletcherous kludges,
- * so we just define it to be as large as possible.
- */
-#define TASK_SIZE (0xFFFFFFFF)
-
-/*
- * This decides where the kernel will search for a free chunk of vm
- * space during mmap's. We won't be using it.
- */
-#define TASK_UNMAPPED_BASE 0
-
-
-#ifndef __ASSEMBLY__
-
-
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l;})
-
-/* If you change this, you must change the associated assembly-languages
- constants defined below, THREAD_*. */
-struct thread_struct {
- /* kernel stack pointer (must be first field in structure) */
- unsigned long ksp;
-};
-
-#define INIT_THREAD { sizeof init_stack + (unsigned long)init_stack }
-
-
-/* Do necessary setup to start up a newly executed thread. */
-static inline void start_thread (struct pt_regs *regs,
- unsigned long pc, unsigned long usp)
-{
- regs->pc = pc;
- regs->gpr[GPR_SP] = usp;
- regs->kernel_mode = 0;
-}
-
-/* Free all resources held by a thread. */
-static inline void release_thread (struct task_struct *dead_task)
-{
-}
-
-/* Prepare to copy thread state - unlazy all lazy status */
-#define prepare_to_copy(tsk) do { } while (0)
-
-extern int kernel_thread (int (*fn)(void *), void * arg, unsigned long flags);
-
-/* Free current thread data structures etc. */
-static inline void exit_thread (void)
-{
-}
-
-
-/* Return the registers saved during context-switch by the currently
- not-running thread T. Note that this only includes some registers!
- See entry.S for details. */
-#define thread_saved_regs(t) \
- ((struct pt_regs*)((t)->thread.ksp + STATE_SAVE_PT_OFFSET))
-/* Return saved (kernel) PC of a blocked thread. Actually, we return the
- LP register, because the thread is actually blocked in switch_thread,
- and we're interested in the PC it will _return_ to. */
-#define thread_saved_pc(t) (thread_saved_regs(t)->gpr[GPR_LP])
-
-
-unsigned long get_wchan (struct task_struct *p);
-
-
-/* Return some info about the user process TASK. */
-#define task_tos(task) ((unsigned long)task_stack_page(task) + THREAD_SIZE)
-#define task_pt_regs(task) ((struct pt_regs *)task_tos (task) - 1)
-#define task_sp(task) (task_pt_regs (task)->gpr[GPR_SP])
-#define task_pc(task) (task_pt_regs (task)->pc)
-/* Grotty old names for some. */
-#define KSTK_EIP(task) task_pc (task)
-#define KSTK_ESP(task) task_sp (task)
-
-
-#define cpu_relax() barrier()
-
-
-#else /* __ASSEMBLY__ */
-
-#define THREAD_KSP 0
-
-#endif /* !__ASSEMBLY__ */
-
-
-#endif /* __V850_PROCESSOR_H__ */
+++ /dev/null
-/*
- * include/asm-v850/ptrace.h -- Access to CPU registers
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_PTRACE_H__
-#define __V850_PTRACE_H__
-
-
-/* v850 general purpose registers with special meanings. */
-#define GPR_ZERO 0 /* constant zero */
-#define GPR_ASM 1 /* reserved for assembler */
-#define GPR_SP 3 /* stack pointer */
-#define GPR_GP 4 /* global data pointer */
-#define GPR_TP 5 /* `text pointer' */
-#define GPR_EP 30 /* `element pointer' */
-#define GPR_LP 31 /* link pointer (current return address) */
-
-/* These aren't official names, but they make some code more descriptive. */
-#define GPR_ARG0 6
-#define GPR_ARG1 7
-#define GPR_ARG2 8
-#define GPR_ARG3 9
-#define GPR_RVAL0 10
-#define GPR_RVAL1 11
-#define GPR_RVAL GPR_RVAL0
-
-#define NUM_GPRS 32
-
-/* v850 `system' registers. */
-#define SR_EIPC 0
-#define SR_EIPSW 1
-#define SR_FEPC 2
-#define SR_FEPSW 3
-#define SR_ECR 4
-#define SR_PSW 5
-#define SR_CTPC 16
-#define SR_CTPSW 17
-#define SR_DBPC 18
-#define SR_DBPSW 19
-#define SR_CTBP 20
-#define SR_DIR 21
-#define SR_ASID 23
-
-
-#ifndef __ASSEMBLY__
-
-typedef unsigned long v850_reg_t;
-
-/* How processor state is stored on the stack during a syscall/signal.
- If you change this structure, change the associated assembly-language
- macros below too (PT_*)! */
-struct pt_regs
-{
- /* General purpose registers. */
- v850_reg_t gpr[NUM_GPRS];
-
- v850_reg_t pc; /* program counter */
- v850_reg_t psw; /* program status word */
-
- /* Registers used by `callt' instruction: */
- v850_reg_t ctpc; /* saved program counter */
- v850_reg_t ctpsw; /* saved psw */
- v850_reg_t ctbp; /* base pointer for callt table */
-
- char kernel_mode; /* 1 if in `kernel mode', 0 if user mode */
-};
-
-
-#define instruction_pointer(regs) ((regs)->pc)
-#define profile_pc(regs) instruction_pointer(regs)
-#define user_mode(regs) (!(regs)->kernel_mode)
-
-/* When a struct pt_regs is used to save user state for a system call in
- the kernel, the system call is stored in the space for R0 (since it's
- never used otherwise, R0 being a constant 0). Non-system-calls
- simply store 0 there. */
-#define PT_REGS_SYSCALL(regs) (regs)->gpr[0]
-#define PT_REGS_SET_SYSCALL(regs, val) ((regs)->gpr[0] = (val))
-
-#endif /* !__ASSEMBLY__ */
-
-
-/* The number of bytes used to store each register. */
-#define _PT_REG_SIZE 4
-
-/* Offset of a general purpose register in a struct pt_regs. */
-#define PT_GPR(num) ((num) * _PT_REG_SIZE)
-
-/* Offsets of various special registers & fields in a struct pt_regs. */
-#define PT_PC ((NUM_GPRS + 0) * _PT_REG_SIZE)
-#define PT_PSW ((NUM_GPRS + 1) * _PT_REG_SIZE)
-#define PT_CTPC ((NUM_GPRS + 2) * _PT_REG_SIZE)
-#define PT_CTPSW ((NUM_GPRS + 3) * _PT_REG_SIZE)
-#define PT_CTBP ((NUM_GPRS + 4) * _PT_REG_SIZE)
-#define PT_KERNEL_MODE ((NUM_GPRS + 5) * _PT_REG_SIZE)
-
-/* Where the current syscall number is stashed; obviously only valid in
- the kernel! */
-#define PT_CUR_SYSCALL PT_GPR(0)
-
-/* Size of struct pt_regs, including alignment. */
-#define PT_SIZE ((NUM_GPRS + 6) * _PT_REG_SIZE)
-
-
-/* These are `magic' values for PTRACE_PEEKUSR that return info about where
- a process is located in memory. */
-#define PT_TEXT_ADDR (PT_SIZE + 1)
-#define PT_TEXT_LEN (PT_SIZE + 2)
-#define PT_DATA_ADDR (PT_SIZE + 3)
-
-
-#endif /* __V850_PTRACE_H__ */
+++ /dev/null
-#ifndef __V850_RESOURCE_H__
-#define __V850_RESOURCE_H__
-
-#include <asm-generic/resource.h>
-
-#endif /* __V850_RESOURCE_H__ */
+++ /dev/null
-/*
- * include/asm-v850/rte_cb.h -- Midas labs RTE-CB series of evaluation boards
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_RTE_CB_H__
-#define __V850_RTE_CB_H__
-
-
-/* The SRAM on the Mother-A motherboard. */
-#define MB_A_SRAM_ADDR GCS0_ADDR
-#define MB_A_SRAM_SIZE 0x00200000 /* 2MB */
-
-
-#ifdef CONFIG_RTE_GBUS_INT
-/* GBUS interrupt support. */
-
-# include <asm/gbus_int.h>
-
-# define GBUS_INT_BASE_IRQ NUM_RTE_CB_IRQS
-# define GBUS_INT_BASE_ADDR (GCS2_ADDR + 0x00006000)
-
-/* Some specific interrupts. */
-# define IRQ_MB_A_LAN IRQ_GBUS_INT(10)
-# define IRQ_MB_A_PCI1(n) (IRQ_GBUS_INT(16) + (n))
-# define IRQ_MB_A_PCI1_NUM 4
-# define IRQ_MB_A_PCI2(n) (IRQ_GBUS_INT(20) + (n))
-# define IRQ_MB_A_PCI2_NUM 4
-# define IRQ_MB_A_EXT(n) (IRQ_GBUS_INT(24) + (n))
-# define IRQ_MB_A_EXT_NUM 4
-# define IRQ_MB_A_USB_OC(n) (IRQ_GBUS_INT(28) + (n))
-# define IRQ_MB_A_USB_OC_NUM 2
-# define IRQ_MB_A_PCMCIA_OC IRQ_GBUS_INT(30)
-
-/* We define NUM_MACH_IRQS to include extra interrupts from the GBUS. */
-# define NUM_MACH_IRQS (NUM_RTE_CB_IRQS + IRQ_GBUS_INT_NUM)
-
-#else /* !CONFIG_RTE_GBUS_INT */
-
-# define NUM_MACH_IRQS NUM_RTE_CB_IRQS
-
-#endif /* CONFIG_RTE_GBUS_INT */
-
-
-#ifdef CONFIG_RTE_MB_A_PCI
-/* Mother-A PCI bus support. */
-
-# include <asm/rte_mb_a_pci.h>
-
-/* These are the base addresses used for allocating device address
- space. 512K of the motherboard SRAM is in the same space, so we have
- to be careful not to let it be allocated. */
-# define PCIBIOS_MIN_MEM (MB_A_PCI_MEM_ADDR + 0x80000)
-# define PCIBIOS_MIN_IO MB_A_PCI_IO_ADDR
-
-/* As we don't really support PCI DMA to cpu memory, and use bounce-buffers
- instead, perversely enough, this becomes always true! */
-# define pci_dma_supported(dev, mask) 1
-# define pcibios_assign_all_busses() 1
-
-#endif /* CONFIG_RTE_MB_A_PCI */
-
-
-#ifndef __ASSEMBLY__
-extern void rte_cb_early_init (void);
-extern void rte_cb_init_irqs (void);
-#endif /* !__ASSEMBLY__ */
-
-
-#endif /* __V850_RTE_CB_H__ */
+++ /dev/null
-/*
- * include/asm-v850/rte_ma1_cb.h -- Midas labs RTE-V850/MA1-CB board
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_RTE_MA1_CB_H__
-#define __V850_RTE_MA1_CB_H__
-
-#include <asm/rte_cb.h> /* Common defs for Midas RTE-CB boards. */
-
-
-#define PLATFORM "rte-v850e/ma1-cb"
-#define PLATFORM_LONG "Midas lab RTE-V850E/MA1-CB"
-
-#define CPU_CLOCK_FREQ 50000000 /* 50MHz */
-
-/* 1MB of onboard SRAM. Note that the monitor ROM uses parts of this
- for its own purposes, so care must be taken. Some address lines are
- not decoded, so the SRAM area is mirrored every 1MB from 0x400000 to
- 0x800000 (exclusive). */
-#define SRAM_ADDR 0x00400000
-#define SRAM_SIZE 0x00100000 /* 1MB */
-
-/* 32MB of onbard SDRAM. */
-#define SDRAM_ADDR 0x00800000
-#define SDRAM_SIZE 0x02000000 /* 32MB */
-
-
-/* CPU addresses of GBUS memory spaces. */
-#define GCS0_ADDR 0x05000000 /* GCS0 - Common SRAM (2MB) */
-#define GCS0_SIZE 0x00200000 /* 2MB */
-#define GCS1_ADDR 0x06000000 /* GCS1 - Flash ROM (8MB) */
-#define GCS1_SIZE 0x00800000 /* 8MB */
-#define GCS2_ADDR 0x07900000 /* GCS2 - I/O registers */
-#define GCS2_SIZE 0x00400000 /* 4MB */
-#define GCS5_ADDR 0x04000000 /* GCS5 - PCI bus space */
-#define GCS5_SIZE 0x01000000 /* 16MB */
-#define GCS6_ADDR 0x07980000 /* GCS6 - PCI control registers */
-#define GCS6_SIZE 0x00000200 /* 512B */
-
-
-/* For <asm/page.h> */
-#define PAGE_OFFSET SRAM_ADDR
-
-
-/* The GBUS GINT0 - GINT3 interrupts are connected to the INTP000 - INTP011
- pins on the CPU. These are shared among the GBUS interrupts. */
-#define IRQ_GINT(n) IRQ_INTP(n)
-#define IRQ_GINT_NUM 4
-
-/* Used by <asm/rte_cb.h> to derive NUM_MACH_IRQS. */
-#define NUM_RTE_CB_IRQS NUM_CPU_IRQS
-
-
-#ifdef CONFIG_ROM_KERNEL
-/* Kernel is in ROM, starting at address 0. */
-
-#define INTV_BASE 0
-
-#else /* !CONFIG_ROM_KERNEL */
-
-#ifdef CONFIG_RTE_CB_MULTI
-/* Using RAM kernel with ROM monitor for Multi debugger. */
-
-/* The chip's real interrupt vectors are in ROM, but they jump to a
- secondary interrupt vector table in RAM. */
-#define INTV_BASE 0x004F8000
-
-/* Scratch memory used by the ROM monitor, which shouldn't be used by
- linux (except for the alternate interrupt vector area, defined
- above). */
-#define MON_SCRATCH_ADDR 0x004F8000
-#define MON_SCRATCH_SIZE 0x00008000 /* 32KB */
-
-#else /* !CONFIG_RTE_CB_MULTI */
-/* Using RAM-kernel. Assume some sort of boot-loader got us loaded at
- address 0. */
-
-#define INTV_BASE 0
-
-#endif /* CONFIG_RTE_CB_MULTI */
-
-#endif /* CONFIG_ROM_KERNEL */
-
-
-/* Some misc. on-board devices. */
-
-/* Seven-segment LED display (two digits). Write-only. */
-#define LED_ADDR(n) (0x07802000 + (n))
-#define LED(n) (*(volatile unsigned char *)LED_ADDR(n))
-#define LED_NUM_DIGITS 2
-
-
-/* Override the basic MA uart pre-initialization so that we can
- initialize extra stuff. */
-#undef V850E_UART_PRE_CONFIGURE /* should be defined by <asm/ma.h> */
-#define V850E_UART_PRE_CONFIGURE rte_ma1_cb_uart_pre_configure
-#ifndef __ASSEMBLY__
-extern void rte_ma1_cb_uart_pre_configure (unsigned chan,
- unsigned cflags, unsigned baud);
-#endif
-
-/* This board supports RTS/CTS for the on-chip UART, but only for channel 0. */
-
-/* CTS for UART channel 0 is pin P43 (bit 3 of port 4). */
-#define V850E_UART_CTS(chan) ((chan) == 0 ? !(MA_PORT4_IO & 0x8) : 1)
-/* RTS for UART channel 0 is pin P42 (bit 2 of port 4). */
-#define V850E_UART_SET_RTS(chan, val) \
- do { \
- if (chan == 0) { \
- unsigned old = MA_PORT4_IO; \
- if (val) \
- MA_PORT4_IO = old & ~0x4; \
- else \
- MA_PORT4_IO = old | 0x4; \
- } \
- } while (0)
-
-
-#endif /* __V850_RTE_MA1_CB_H__ */
+++ /dev/null
-/*
- * include/asm-v850/mb_a_pci.h -- PCI support for Midas lab RTE-MOTHER-A board
- *
- * Copyright (C) 2001 NEC Corporation
- * Copyright (C) 2001 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_MB_A_PCI_H__
-#define __V850_MB_A_PCI_H__
-
-
-#define MB_A_PCI_MEM_ADDR GCS5_ADDR
-#define MB_A_PCI_MEM_SIZE (GCS5_SIZE / 2)
-#define MB_A_PCI_IO_ADDR (GCS5_ADDR + MB_A_PCI_MEM_SIZE)
-#define MB_A_PCI_IO_SIZE (GCS5_SIZE / 2)
-#define MB_A_PCI_REG_BASE_ADDR GCS6_ADDR
-
-#define MB_A_PCI_PCICR_ADDR (MB_A_PCI_REG_BASE_ADDR + 0x4)
-#define MB_A_PCI_PCICR (*(volatile u16 *)MB_A_PCI_PCICR_ADDR)
-#define MB_A_PCI_PCISR_ADDR (MB_A_PCI_REG_BASE_ADDR + 0x6)
-#define MB_A_PCI_PCISR (*(volatile u16 *)MB_A_PCI_PCISR_ADDR)
-#define MB_A_PCI_PCILTR_ADDR (MB_A_PCI_REG_BASE_ADDR + 0xD)
-#define MB_A_PCI_PCILTR (*(volatile u8 *)MB_A_PCI_PCILTR_ADDR)
-#define MB_A_PCI_PCIBAR0_ADDR (MB_A_PCI_REG_BASE_ADDR + 0x10)
-#define MB_A_PCI_PCIBAR0 (*(volatile u32 *)MB_A_PCI_PCIBAR0_ADDR)
-#define MB_A_PCI_PCIBAR1_ADDR (MB_A_PCI_REG_BASE_ADDR + 0x14)
-#define MB_A_PCI_PCIBAR1 (*(volatile u32 *)MB_A_PCI_PCIBAR1_ADDR)
-#define MB_A_PCI_PCIBAR2_ADDR (MB_A_PCI_REG_BASE_ADDR + 0x18)
-#define MB_A_PCI_PCIBAR2 (*(volatile u32 *)MB_A_PCI_PCIBAR2_ADDR)
-#define MB_A_PCI_VENDOR_ID_ADDR (MB_A_PCI_REG_BASE_ADDR + 0x2C)
-#define MB_A_PCI_VENDOR_ID (*(volatile u16 *)MB_A_PCI_VENDOR_ID_ADDR)
-#define MB_A_PCI_DEVICE_ID_ADDR (MB_A_PCI_REG_BASE_ADDR + 0x2E)
-#define MB_A_PCI_DEVICE_ID (*(volatile u16 *)MB_A_PCI_DEVICE_ID_ADDR)
-#define MB_A_PCI_DMRR_ADDR (MB_A_PCI_REG_BASE_ADDR + 0x9C)
-#define MB_A_PCI_DMRR (*(volatile u32 *)MB_A_PCI_DMRR_ADDR)
-#define MB_A_PCI_DMLBAM_ADDR (MB_A_PCI_REG_BASE_ADDR + 0xA0)
-#define MB_A_PCI_DMLBAM (*(volatile u32 *)MB_A_PCI_DMLBAM_ADDR)
-#define MB_A_PCI_DMLBAI_ADDR (MB_A_PCI_REG_BASE_ADDR + 0xA4)
-#define MB_A_PCI_DMLBAI (*(volatile u32 *)MB_A_PCI_DMLBAI_ADDR)
-#define MB_A_PCI_PCIPBAM_ADDR (MB_A_PCI_REG_BASE_ADDR + 0xA8)
-#define MB_A_PCI_PCIPBAM (*(volatile u32 *)MB_A_PCI_PCIPBAM_ADDR)
-/* `PCI Configuration Address Register for Direct Master to PCI IO/CFG' */
-#define MB_A_PCI_DMCFGA_ADDR (MB_A_PCI_REG_BASE_ADDR + 0xAC)
-#define MB_A_PCI_DMCFGA (*(volatile u32 *)MB_A_PCI_DMCFGA_ADDR)
-/* `PCI Permanent Configuration ID Register' */
-#define MB_A_PCI_PCIHIDR_ADDR (MB_A_PCI_REG_BASE_ADDR + 0xF0)
-#define MB_A_PCI_PCIHIDR (*(volatile u32 *)MB_A_PCI_PCIHIDR_ADDR)
-
-
-#endif /* __V850_MB_A_PCI_H__ */
+++ /dev/null
-/*
- * include/asm-v850/rte_me2_cb.h -- Midas labs RTE-V850E/ME2-CB board
- *
- * Copyright (C) 2001,02,03 NEC Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_RTE_ME2_CB_H__
-#define __V850_RTE_ME2_CB_H__
-
-#include <asm/rte_cb.h> /* Common defs for Midas RTE-CB boards. */
-
-
-#define PLATFORM "rte-v850e/me2-cb"
-#define PLATFORM_LONG "Midas lab RTE-V850E/ME2-CB"
-
-#define CPU_CLOCK_FREQ 150000000 /* 150MHz */
-#define FIXED_BOGOMIPS 50
-
-/* 32MB of onbard SDRAM. */
-#define SDRAM_ADDR 0x00800000
-#define SDRAM_SIZE 0x02000000 /* 32MB */
-
-
-/* CPU addresses of GBUS memory spaces. */
-#define GCS0_ADDR 0x04000000 /* GCS0 - Common SRAM (2MB) */
-#define GCS0_SIZE 0x00800000 /* 8MB */
-#define GCS1_ADDR 0x04800000 /* GCS1 - Flash ROM (8MB) */
-#define GCS1_SIZE 0x00800000 /* 8MB */
-#define GCS2_ADDR 0x07000000 /* GCS2 - I/O registers */
-#define GCS2_SIZE 0x00800000 /* 8MB */
-#define GCS5_ADDR 0x08000000 /* GCS5 - PCI bus space */
-#define GCS5_SIZE 0x02000000 /* 32MB */
-#define GCS6_ADDR 0x07800000 /* GCS6 - PCI control registers */
-#define GCS6_SIZE 0x00800000 /* 8MB */
-
-
-/* For <asm/page.h> */
-#define PAGE_OFFSET SDRAM_ADDR
-
-
-#ifdef CONFIG_ROM_KERNEL
-/* Kernel is in ROM, starting at address 0. */
-
-#define INTV_BASE 0
-#define ROOT_FS_IMAGE_RW 0
-
-#else /* !CONFIG_ROM_KERNEL */
-/* Using RAM-kernel. Assume some sort of boot-loader got us loaded at
- address 0. */
-
-#define INTV_BASE 0
-#define ROOT_FS_IMAGE_RW 1
-
-#endif /* CONFIG_ROM_KERNEL */
-
-
-/* Some misc. on-board devices. */
-
-/* Seven-segment LED display (four digits). */
-#define LED_ADDR(n) (0x0FE02000 + (n))
-#define LED(n) (*(volatile unsigned char *)LED_ADDR(n))
-#define LED_NUM_DIGITS 4
-
-
-/* On-board PIC. */
-
-#define CB_PIC_BASE_ADDR 0x0FE04000
-
-#define CB_PIC_INT0M_ADDR (CB_PIC_BASE_ADDR + 0x00)
-#define CB_PIC_INT0M (*(volatile u16 *)CB_PIC_INT0M_ADDR)
-#define CB_PIC_INT1M_ADDR (CB_PIC_BASE_ADDR + 0x10)
-#define CB_PIC_INT1M (*(volatile u16 *)CB_PIC_INT1M_ADDR)
-#define CB_PIC_INTR_ADDR (CB_PIC_BASE_ADDR + 0x20)
-#define CB_PIC_INTR (*(volatile u16 *)CB_PIC_INTR_ADDR)
-#define CB_PIC_INTEN_ADDR (CB_PIC_BASE_ADDR + 0x30)
-#define CB_PIC_INTEN (*(volatile u16 *)CB_PIC_INTEN_ADDR)
-
-#define CB_PIC_INT0EN 0x0001
-#define CB_PIC_INT1EN 0x0002
-#define CB_PIC_INT0SEL 0x0080
-
-/* The PIC interrupts themselves. */
-#define CB_PIC_BASE_IRQ NUM_CPU_IRQS
-#define IRQ_CB_PIC_NUM 10
-
-/* Some specific CB_PIC interrupts. */
-#define IRQ_CB_EXTTM0 (CB_PIC_BASE_IRQ + 0)
-#define IRQ_CB_EXTSIO (CB_PIC_BASE_IRQ + 1)
-#define IRQ_CB_TOVER (CB_PIC_BASE_IRQ + 2)
-#define IRQ_CB_GINT0 (CB_PIC_BASE_IRQ + 3)
-#define IRQ_CB_USB (CB_PIC_BASE_IRQ + 4)
-#define IRQ_CB_LANC (CB_PIC_BASE_IRQ + 5)
-#define IRQ_CB_USB_VBUS_ON (CB_PIC_BASE_IRQ + 6)
-#define IRQ_CB_USB_VBUS_OFF (CB_PIC_BASE_IRQ + 7)
-#define IRQ_CB_EXTTM1 (CB_PIC_BASE_IRQ + 8)
-#define IRQ_CB_EXTTM2 (CB_PIC_BASE_IRQ + 9)
-
-/* The GBUS GINT1 - GINT3 (note, not GINT0!) interrupts are connected to
- the INTP65 - INTP67 pins on the CPU. These are shared among the GBUS
- interrupts. */
-#define IRQ_GINT(n) IRQ_INTP((n) + 9) /* 0 is unused! */
-#define IRQ_GINT_NUM 4 /* 0 is unused! */
-
-/* The shared interrupt line from the PIC is connected to CPU pin INTP23. */
-#define IRQ_CB_PIC IRQ_INTP(4) /* P23 */
-
-/* Used by <asm/rte_cb.h> to derive NUM_MACH_IRQS. */
-#define NUM_RTE_CB_IRQS (NUM_CPU_IRQS + IRQ_CB_PIC_NUM)
-
-
-#ifndef __ASSEMBLY__
-struct cb_pic_irq_init {
- const char *name; /* name of interrupt type */
-
- /* Range of kernel irq numbers for this type:
- BASE, BASE+INTERVAL, ..., BASE+INTERVAL*NUM */
- unsigned base, num, interval;
-
- unsigned priority; /* interrupt priority to assign */
-};
-struct hw_interrupt_type; /* fwd decl */
-
-/* Enable interrupt handling for interrupt IRQ. */
-extern void cb_pic_enable_irq (unsigned irq);
-/* Disable interrupt handling for interrupt IRQ. Note that any interrupts
- received while disabled will be delivered once the interrupt is enabled
- again, unless they are explicitly cleared using `cb_pic_clear_pending_irq'. */
-extern void cb_pic_disable_irq (unsigned irq);
-/* Initialize HW_IRQ_TYPES for PIC irqs described in array INITS (which is
- terminated by an entry with the name field == 0). */
-extern void cb_pic_init_irq_types (struct cb_pic_irq_init *inits,
- struct hw_interrupt_type *hw_irq_types);
-/* Initialize PIC interrupts. */
-extern void cb_pic_init_irqs (void);
-#endif /* __ASSEMBLY__ */
-
-
-/* TL16C550C on board UART see also asm/serial.h */
-#define CB_UART_BASE 0x0FE08000
-#define CB_UART_REG_GAP 0x10
-#define CB_UART_CLOCK 0x16000000
-
-/* CompactFlash setting */
-#define CB_CF_BASE 0x0FE0C000
-#define CB_CF_CCR_ADDR (CB_CF_BASE+0x200)
-#define CB_CF_CCR (*(volatile u8 *)CB_CF_CCR_ADDR)
-#define CB_CF_REG0_ADDR (CB_CF_BASE+0x1000)
-#define CB_CF_REG0 (*(volatile u16 *)CB_CF_REG0_ADDR)
-#define CB_CF_STS0_ADDR (CB_CF_BASE+0x1004)
-#define CB_CF_STS0 (*(volatile u16 *)CB_CF_STS0_ADDR)
-#define CB_PCATA_BASE (CB_CF_BASE+0x800)
-#define CB_IDE_BASE (CB_CF_BASE+0x9F0)
-#define CB_IDE_CTRL (CB_CF_BASE+0xBF6)
-#define CB_IDE_REG_OFFS 0x1
-
-
-/* SMSC LAN91C111 setting */
-#if defined(CONFIG_SMC91111)
-#define CB_LANC_BASE 0x0FE10300
-#define CONFIG_SMC16BITONLY
-#define ETH0_ADDR CB_LANC_BASE
-#define ETH0_IRQ IRQ_CB_LANC
-#endif /* CONFIG_SMC16BITONLY */
-
-
-#undef V850E_UART_PRE_CONFIGURE
-#define V850E_UART_PRE_CONFIGURE rte_me2_cb_uart_pre_configure
-#ifndef __ASSEMBLY__
-extern void rte_me2_cb_uart_pre_configure (unsigned chan,
- unsigned cflags, unsigned baud);
-#endif /* __ASSEMBLY__ */
-
-/* This board supports RTS/CTS for the on-chip UART, but only for channel 0. */
-
-/* CTS for UART channel 0 is pin P22 (bit 2 of port 2). */
-#define V850E_UART_CTS(chan) ((chan) == 0 ? !(ME2_PORT2_IO & 0x4) : 1)
-/* RTS for UART channel 0 is pin P21 (bit 1 of port 2). */
-#define V850E_UART_SET_RTS(chan, val) \
- do { \
- if (chan == 0) { \
- unsigned old = ME2_PORT2_IO; \
- if (val) \
- ME2_PORT2_IO = old & ~0x2; \
- else \
- ME2_PORT2_IO = old | 0x2; \
- } \
- } while (0)
-
-
-#ifndef __ASSEMBLY__
-extern void rte_me2_cb_init_irqs (void);
-#endif /* !__ASSEMBLY__ */
-
-
-#endif /* __V850_RTE_ME2_CB_H__ */
+++ /dev/null
-/*
- * include/asm-v850/rte_nb85e_cb.h -- Midas labs RTE-V850/NB85E-CB board
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_RTE_NB85E_CB_H__
-#define __V850_RTE_NB85E_CB_H__
-
-#include <asm/rte_cb.h> /* Common defs for Midas RTE-CB boards. */
-
-
-#define PLATFORM "rte-v850e/nb85e-cb"
-#define PLATFORM_LONG "Midas lab RTE-V850E/NB85E-CB"
-
-#define CPU_CLOCK_FREQ 50000000 /* 50MHz */
-
-/* 1MB of onboard SRAM. Note that the monitor ROM uses parts of this
- for its own purposes, so care must be taken. */
-#define SRAM_ADDR 0x03C00000
-#define SRAM_SIZE 0x00100000 /* 1MB */
-
-/* 16MB of onbard SDRAM. */
-#define SDRAM_ADDR 0x01000000
-#define SDRAM_SIZE 0x01000000 /* 16MB */
-
-
-/* CPU addresses of GBUS memory spaces. */
-#define GCS0_ADDR 0x00400000 /* GCS0 - Common SRAM (2MB) */
-#define GCS0_SIZE 0x00400000 /* 4MB */
-#define GCS1_ADDR 0x02000000 /* GCS1 - Flash ROM (8MB) */
-#define GCS1_SIZE 0x00800000 /* 8MB */
-#define GCS2_ADDR 0x03900000 /* GCS2 - I/O registers */
-#define GCS2_SIZE 0x00080000 /* 512KB */
-#define GCS3_ADDR 0x02800000 /* GCS3 - EXT-bus: memory space */
-#define GCS3_SIZE 0x00800000 /* 8MB */
-#define GCS4_ADDR 0x03A00000 /* GCS4 - EXT-bus: I/O space */
-#define GCS4_SIZE 0x00200000 /* 2MB */
-#define GCS5_ADDR 0x00800000 /* GCS5 - PCI bus space */
-#define GCS5_SIZE 0x00800000 /* 8MB */
-#define GCS6_ADDR 0x03980000 /* GCS6 - PCI control registers */
-#define GCS6_SIZE 0x00010000 /* 64KB */
-
-
-/* The GBUS GINT0 - GINT3 interrupts are connected to CPU interrupts 10-12.
- These are shared among the GBUS interrupts. */
-#define IRQ_GINT(n) (10 + (n))
-#define IRQ_GINT_NUM 3
-
-/* Used by <asm/rte_cb.h> to derive NUM_MACH_IRQS. */
-#define NUM_RTE_CB_IRQS NUM_CPU_IRQS
-
-
-#ifdef CONFIG_ROM_KERNEL
-/* Kernel is in ROM, starting at address 0. */
-
-#define INTV_BASE 0
-
-#else /* !CONFIG_ROM_KERNEL */
-/* We're using the ROM monitor. */
-
-/* The chip's real interrupt vectors are in ROM, but they jump to a
- secondary interrupt vector table in RAM. */
-#define INTV_BASE 0x03CF8000
-
-/* Scratch memory used by the ROM monitor, which shouldn't be used by
- linux (except for the alternate interrupt vector area, defined
- above). */
-#define MON_SCRATCH_ADDR 0x03CE8000
-#define MON_SCRATCH_SIZE 0x00018000 /* 96KB */
-
-#endif /* CONFIG_ROM_KERNEL */
-
-
-/* Some misc. on-board devices. */
-
-/* Seven-segment LED display (two digits). Write-only. */
-#define LED_ADDR(n) (0x03802000 + (n))
-#define LED(n) (*(volatile unsigned char *)LED_ADDR(n))
-#define LED_NUM_DIGITS 4
-
-
-/* Override the basic TEG UART pre-initialization so that we can
- initialize extra stuff. */
-#undef V850E_UART_PRE_CONFIGURE /* should be defined by <asm/teg.h> */
-#define V850E_UART_PRE_CONFIGURE rte_nb85e_cb_uart_pre_configure
-#ifndef __ASSEMBLY__
-extern void rte_nb85e_cb_uart_pre_configure (unsigned chan,
- unsigned cflags, unsigned baud);
-#endif
-
-/* This board supports RTS/CTS for the on-chip UART. */
-
-/* CTS is pin P00. */
-#define V850E_UART_CTS(chan) (! (TEG_PORT0_IO & 0x1))
-/* RTS is pin P02. */
-#define V850E_UART_SET_RTS(chan, val) \
- do { \
- unsigned old = TEG_PORT0_IO; \
- TEG_PORT0_IO = val ? (old & ~0x4) : (old | 0x4); \
- } while (0)
-
-
-#endif /* __V850_RTE_NB85E_CB_H__ */
+++ /dev/null
-/*
- * include/asm-v850/scatterlist.h
- *
- * Copyright (C) 2001,02 NEC Corporation
- * Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_SCATTERLIST_H__
-#define __V850_SCATTERLIST_H__
-
-#include <asm/types.h>
-
-struct scatterlist {
-#ifdef CONFIG_DEBUG_SG
- unsigned long sg_magic;
-#endif
- unsigned long page_link;
- unsigned offset;
- dma_addr_t dma_address;
- unsigned length;
-};
-
-#define ISA_DMA_THRESHOLD (~0UL)
-
-#endif /* __V850_SCATTERLIST_H__ */
+++ /dev/null
-#ifndef __V850_SECTIONS_H__
-#define __V850_SECTIONS_H__
-
-#include <asm-generic/sections.h>
-
-#endif /* __V850_SECTIONS_H__ */
+++ /dev/null
-#ifndef __V850_SEGMENT_H__
-#define __V850_SEGMENT_H__
-
-
-#ifndef __ASSEMBLY__
-
-typedef unsigned long mm_segment_t; /* domain register */
-
-#endif /* !__ASSEMBLY__ */
-
-
-#define __KERNEL_CS 0x0
-#define __KERNEL_DS 0x0
-
-#define __USER_CS 0x1
-#define __USER_DS 0x1
-
-#define KERNEL_DS __KERNEL_DS
-#define KERNEL_CS __KERNEL_CS
-#define USER_DS __USER_DS
-#define USER_CS __USER_CS
-
-#define segment_eq(a,b) ((a) == (b))
-
-#define get_ds() (KERNEL_DS)
-#define get_fs() (USER_DS)
-
-#define set_fs(seg) ((void)(seg))
-
-
-#define copy_segments(task, mm) ((void)((void)(task), (mm)))
-#define release_segments(mm) ((void)(mm))
-#define forget_segments() ((void)0)
-
-
-#endif /* __V850_SEGMENT_H__ */
+++ /dev/null
-#include <linux/semaphore.h>
+++ /dev/null
-#ifndef __V850_SEMBUF_H__
-#define __V850_SEMBUF_H__
-
-/*
- * The semid64_ds structure for v850 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem
- * - 2 miscellaneous 32-bit values
- */
-
-struct semid64_ds {
- struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
- __kernel_time_t sem_otime; /* last semop time */
- unsigned long __unused1;
- __kernel_time_t sem_ctime; /* last change time */
- unsigned long __unused2;
- unsigned long sem_nsems; /* no. of semaphores in array */
- unsigned long __unused3;
- unsigned long __unused4;
-};
-
-#endif /* __V850_SEMBUF_H__ */
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1999 by Ralf Baechle
- * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
- */
-
-#ifdef CONFIG_RTE_CB_ME2
-
-#include <asm/rte_me2_cb.h>
-
-#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
-
-#define irq_cannonicalize(x) (x)
-#define BASE_BAUD 250000 /* (16MHz / (16 * 38400)) * 9600 */
-#define SERIAL_PORT_DFNS \
- { 0, BASE_BAUD, CB_UART_BASE, IRQ_CB_EXTSIO, STD_COM_FLAGS },
-
-/* Redefine UART register offsets. */
-#undef UART_RX
-#undef UART_TX
-#undef UART_DLL
-#undef UART_TRG
-#undef UART_DLM
-#undef UART_IER
-#undef UART_FCTR
-#undef UART_IIR
-#undef UART_FCR
-#undef UART_EFR
-#undef UART_LCR
-#undef UART_MCR
-#undef UART_LSR
-#undef UART_MSR
-#undef UART_SCR
-#undef UART_EMSR
-
-#define UART_RX (0 * CB_UART_REG_GAP)
-#define UART_TX (0 * CB_UART_REG_GAP)
-#define UART_DLL (0 * CB_UART_REG_GAP)
-#define UART_TRG (0 * CB_UART_REG_GAP)
-#define UART_DLM (1 * CB_UART_REG_GAP)
-#define UART_IER (1 * CB_UART_REG_GAP)
-#define UART_FCTR (1 * CB_UART_REG_GAP)
-#define UART_IIR (2 * CB_UART_REG_GAP)
-#define UART_FCR (2 * CB_UART_REG_GAP)
-#define UART_EFR (2 * CB_UART_REG_GAP)
-#define UART_LCR (3 * CB_UART_REG_GAP)
-#define UART_MCR (4 * CB_UART_REG_GAP)
-#define UART_LSR (5 * CB_UART_REG_GAP)
-#define UART_MSR (6 * CB_UART_REG_GAP)
-#define UART_SCR (7 * CB_UART_REG_GAP)
-#define UART_EMSR (7 * CB_UART_REG_GAP)
-
-#endif /* CONFIG_RTE_CB_ME2 */
+++ /dev/null
-#ifndef _V850_SETUP_H
-#define _V850_SETUP_H
-
-#define COMMAND_LINE_SIZE 512
-
-#endif /* __SETUP_H */
+++ /dev/null
-#ifndef __V850_SHMBUF_H__
-#define __V850_SHMBUF_H__
-
-/*
- * The shmid64_ds structure for v850 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem
- * - 2 miscellaneous 32-bit values
- */
-
-struct shmid64_ds {
- struct ipc64_perm shm_perm; /* operation perms */
- size_t shm_segsz; /* size of segment (bytes) */
- __kernel_time_t shm_atime; /* last attach time */
- unsigned long __unused1;
- __kernel_time_t shm_dtime; /* last detach time */
- unsigned long __unused2;
- __kernel_time_t shm_ctime; /* last change time */
- unsigned long __unused3;
- __kernel_pid_t shm_cpid; /* pid of creator */
- __kernel_pid_t shm_lpid; /* pid of last operator */
- unsigned long shm_nattch; /* no. of current attaches */
- unsigned long __unused4;
- unsigned long __unused5;
-};
-
-struct shminfo64 {
- unsigned long shmmax;
- unsigned long shmmin;
- unsigned long shmmni;
- unsigned long shmseg;
- unsigned long shmall;
- unsigned long __unused1;
- unsigned long __unused2;
- unsigned long __unused3;
- unsigned long __unused4;
-};
-
-#endif /* __V850_SHMBUF_H__ */
+++ /dev/null
-#ifndef __V850_SHMPARAM_H__
-#define __V850_SHMPARAM_H__
-
-#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */
-
-#endif /* __V850_SHMPARAM_H__ */
+++ /dev/null
-/*
- * include/asm-v850/sigcontext.h -- Signal contexts
- *
- * Copyright (C) 2001 NEC Corporation
- * Copyright (C) 2001 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_SIGCONTEXT_H__
-#define __V850_SIGCONTEXT_H__
-
-#include <asm/ptrace.h>
-
-struct sigcontext
-{
- struct pt_regs regs;
- unsigned long oldmask;
-};
-
-#endif /* __V850_SIGCONTEXT_H__ */
+++ /dev/null
-#ifndef __V850_SIGINFO_H__
-#define __V850_SIGINFO_H__
-
-#include <asm-generic/siginfo.h>
-
-#endif /* __V850_SIGINFO_H__ */
+++ /dev/null
-#ifndef __V850_SIGNAL_H__
-#define __V850_SIGNAL_H__
-
-#include <linux/types.h>
-
-/* Avoid too many header ordering problems. */
-struct siginfo;
-
-
-#ifdef __KERNEL__
-
-/* Most things should be clean enough to redefine this at will, if care
- is taken to make libc match. */
-#define _NSIG 64
-#define _NSIG_BPW 32
-#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
-
-typedef unsigned long old_sigset_t; /* at least 32 bits */
-
-typedef struct {
- unsigned long sig[_NSIG_WORDS];
-} sigset_t;
-
-#else /* !__KERNEL__ */
-
-/* Here we must cater to libcs that poke about in kernel headers. */
-
-#define NSIG 32
-typedef unsigned long sigset_t;
-
-#endif /* __KERNEL__ */
-
-
-#define SIGHUP 1
-#define SIGINT 2
-#define SIGQUIT 3
-#define SIGILL 4
-#define SIGTRAP 5
-#define SIGABRT 6
-#define SIGIOT 6
-#define SIGBUS 7
-#define SIGFPE 8
-#define SIGKILL 9
-#define SIGUSR1 10
-#define SIGSEGV 11
-#define SIGUSR2 12
-#define SIGPIPE 13
-#define SIGALRM 14
-#define SIGTERM 15
-#define SIGSTKFLT 16
-#define SIGCHLD 17
-#define SIGCONT 18
-#define SIGSTOP 19
-#define SIGTSTP 20
-#define SIGTTIN 21
-#define SIGTTOU 22
-#define SIGURG 23
-#define SIGXCPU 24
-#define SIGXFSZ 25
-#define SIGVTALRM 26
-#define SIGPROF 27
-#define SIGWINCH 28
-#define SIGIO 29
-#define SIGPOLL SIGIO
-/*
-#define SIGLOST 29
-*/
-#define SIGPWR 30
-#define SIGSYS 31
-#define SIGUNUSED 31
-
-/* These should not be considered constants from userland. */
-#define SIGRTMIN 32
-#define SIGRTMAX _NSIG
-
-/*
- * SA_FLAGS values:
- *
- * SA_ONSTACK indicates that a registered stack_t will be used.
- * SA_RESTART flag to get restarting signals (which were the default long ago)
- * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
- * SA_RESETHAND clears the handler when the signal is delivered.
- * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
- * SA_NODEFER prevents the current signal from being masked in the handler.
- *
- * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
- * Unix names RESETHAND and NODEFER respectively.
- */
-#define SA_NOCLDSTOP 0x00000001
-#define SA_NOCLDWAIT 0x00000002
-#define SA_SIGINFO 0x00000004
-#define SA_ONSTACK 0x08000000
-#define SA_RESTART 0x10000000
-#define SA_NODEFER 0x40000000
-#define SA_RESETHAND 0x80000000
-
-#define SA_NOMASK SA_NODEFER
-#define SA_ONESHOT SA_RESETHAND
-
-#define SA_RESTORER 0x04000000
-
-/*
- * sigaltstack controls
- */
-#define SS_ONSTACK 1
-#define SS_DISABLE 2
-
-#define MINSIGSTKSZ 2048
-#define SIGSTKSZ 8192
-
-#include <asm-generic/signal.h>
-
-#ifdef __KERNEL__
-
-struct old_sigaction {
- __sighandler_t sa_handler;
- old_sigset_t sa_mask;
- unsigned long sa_flags;
- void (*sa_restorer)(void);
-};
-
-struct sigaction {
- __sighandler_t sa_handler;
- unsigned long sa_flags;
- void (*sa_restorer)(void);
- sigset_t sa_mask; /* mask last for extensibility */
-};
-
-struct k_sigaction {
- struct sigaction sa;
-};
-
-#else /* !__KERNEL__ */
-
-/* Here we must cater to libcs that poke about in kernel headers. */
-
-struct sigaction {
- union {
- __sighandler_t _sa_handler;
- void (*_sa_sigaction)(int, struct siginfo *, void *);
- } _u;
- sigset_t sa_mask;
- unsigned long sa_flags;
- void (*sa_restorer)(void);
-};
-
-#define sa_handler _u._sa_handler
-#define sa_sigaction _u._sa_sigaction
-
-#endif /* __KERNEL__ */
-
-
-typedef struct sigaltstack {
- void *ss_sp;
- int ss_flags;
- size_t ss_size;
-} stack_t;
-
-#ifdef __KERNEL__
-
-#include <asm/sigcontext.h>
-#undef __HAVE_ARCH_SIG_BITOPS
-
-#define ptrace_signal_deliver(regs, cookie) do { } while (0)
-
-#endif /* __KERNEL__ */
-
-#endif /* __V850_SIGNAL_H__ */
+++ /dev/null
-/*
- * include/asm-v850/sim.h -- Machine-dependent defs for GDB v850e simulator
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_SIM_H__
-#define __V850_SIM_H__
-
-
-#define CPU_ARCH "v850e"
-#define CPU_MODEL "v850e"
-#define CPU_MODEL_LONG "NEC V850E"
-#define PLATFORM "gdb/v850e"
-#define PLATFORM_LONG "GDB V850E simulator"
-
-
-/* We use a weird value for RAM, not just 0, for testing purposes.
- These must match the values used in the linker script. */
-#define RAM_ADDR 0x8F000000
-#define RAM_SIZE 0x03000000
-
-
-/* For <asm/page.h> */
-#define PAGE_OFFSET RAM_ADDR
-
-
-/* For <asm/entry.h> */
-/* `R0 RAM', used for a few miscellaneous variables that must be
- accessible using a load instruction relative to R0. On real
- processors, this usually is on-chip RAM, but here we just
- choose an arbitrary address that meets the above constraint. */
-#define R0_RAM_ADDR 0xFFFFF000
-
-
-/* For <asm/irq.h> */
-#define NUM_CPU_IRQS 6
-
-
-#endif /* __V850_SIM_H__ */
+++ /dev/null
-/*
- * include/asm-v850/sim85e2.h -- Machine-dependent defs for
- * V850E2 RTL simulator
- *
- * Copyright (C) 2002,03 NEC Electronics Corporation
- * Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_SIM85E2_H__
-#define __V850_SIM85E2_H__
-
-
-#include <asm/v850e2.h> /* Based on V850E2 core. */
-
-
-/* Various memory areas supported by the simulator.
- These should match the corresponding definitions in the linker script. */
-
-/* `instruction RAM'; instruction fetches are much faster from IRAM than
- from DRAM. */
-#define IRAM_ADDR 0
-#define IRAM_SIZE 0x00100000 /* 1MB */
-/* `data RAM', below and contiguous with the I/O space.
- Data fetches are much faster from DRAM than from IRAM. */
-#define DRAM_ADDR 0xfff00000
-#define DRAM_SIZE 0x000ff000 /* 1020KB */
-/* `external ram'. Unlike the above RAM areas, this memory is cached,
- so both instruction and data fetches should be (mostly) fast --
- however, currently only write-through caching is supported, so writes
- to ERAM will be slow. */
-#define ERAM_ADDR 0x00100000
-#define ERAM_SIZE 0x07f00000 /* 127MB (max) */
-/* Dynamic RAM; uses memory controller. */
-#define SDRAM_ADDR 0x10000000
-#define SDRAM_SIZE 0x01000000 /* 16MB */
-
-
-/* Simulator specific control registers. */
-/* NOTHAL controls whether the simulator will stop at a `halt' insn. */
-#define SIM85E2_NOTHAL_ADDR 0xffffff22
-#define SIM85E2_NOTHAL (*(volatile u8 *)SIM85E2_NOTHAL_ADDR)
-/* The simulator will stop N cycles after N is written to SIMFIN. */
-#define SIM85E2_SIMFIN_ADDR 0xffffff24
-#define SIM85E2_SIMFIN (*(volatile u16 *)SIM85E2_SIMFIN_ADDR)
-
-
-/* For <asm/irq.h> */
-#define NUM_CPU_IRQS 64
-
-
-/* For <asm/page.h> */
-#define PAGE_OFFSET SDRAM_ADDR
-
-
-/* For <asm/entry.h> */
-/* `R0 RAM', used for a few miscellaneous variables that must be accessible
- using a load instruction relative to R0. The sim85e2 simulator
- actually puts 1020K of RAM from FFF00000 to FFFFF000, so we arbitarily
- choose a small portion at the end of that. */
-#define R0_RAM_ADDR 0xFFFFE000
-
-
-#endif /* __V850_SIM85E2_H__ */
+++ /dev/null
-/*
- * include/asm-v850/sim85e2c.h -- Machine-dependent defs for
- * V850E2 RTL simulator
- *
- * Copyright (C) 2002 NEC Corporation
- * Copyright (C) 2002 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_SIM85E2C_H__
-#define __V850_SIM85E2C_H__
-
-/* Use generic sim85e2 settings, other than the various names. */
-#include <asm/sim85e2.h>
-
-#define CPU_MODEL "v850e2"
-#define CPU_MODEL_LONG "NEC V850E2"
-#define PLATFORM "sim85e2c"
-#define PLATFORM_LONG "SIM85E2C V850E2 simulator"
-
-#endif /* __V850_SIM85E2C_H__ */
+++ /dev/null
-/*
- * include/asm-v850/sim85e2s.h -- Machine-dependent defs for
- * V850E2 RTL simulator
- *
- * Copyright (C) 2003 NEC Electronics Corporation
- * Copyright (C) 2003 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_SIM85E2S_H__
-#define __V850_SIM85E2S_H__
-
-#include <asm/sim85e2.h> /* Use generic sim85e2 settings. */
-#if 0
-#include <asm/v850e2_cache.h> /* + cache */
-#endif
-
-#define CPU_MODEL "v850e2"
-#define CPU_MODEL_LONG "NEC V850E2"
-#define PLATFORM "sim85e2s"
-#define PLATFORM_LONG "SIM85E2S V850E2 simulator"
-
-#endif /* __V850_SIM85E2S_H__ */
+++ /dev/null
-/*
- * include/asm-v850/simsyscall.h -- `System calls' under the v850e emulator
- *
- * Copyright (C) 2001 NEC Corporation
- * Copyright (C) 2001 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_SIMSYSCALL_H__
-#define __V850_SIMSYSCALL_H__
-
-#define V850_SIM_SYS_exit(a...) V850_SIM_SYSCALL_1 (1 , ##a)
-#define V850_SIM_SYS_fork(a...) V850_SIM_SYSCALL_0 (2 , ##a)
-#define V850_SIM_SYS_read(a...) V850_SIM_SYSCALL_3 (3 , ##a)
-#define V850_SIM_SYS_write(a...) V850_SIM_SYSCALL_3 (4 , ##a)
-#define V850_SIM_SYS_open(a...) V850_SIM_SYSCALL_2 (5 , ##a)
-#define V850_SIM_SYS_close(a...) V850_SIM_SYSCALL_1 (6 , ##a)
-#define V850_SIM_SYS_wait4(a...) V850_SIM_SYSCALL_4 (7 , ##a)
-/* #define V850_SIM_SYS_creat(a...) V850_SIM_SYSCALL_1 (8 , ##a) */
-/* #define V850_SIM_SYS_link(a...) V850_SIM_SYSCALL_1 (9 , ##a) */
-/* #define V850_SIM_SYS_unlink(a...) V850_SIM_SYSCALL_1 (10 , ##a) */
-#define V850_SIM_SYS_execv(a...) V850_SIM_SYSCALL_2 (11 , ##a)
-/* #define V850_SIM_SYS_chdir(a...) V850_SIM_SYSCALL_1 (12 , ##a) */
-/* #define V850_SIM_SYS_mknod(a...) V850_SIM_SYSCALL_1 (14 , ##a) */
-#define V850_SIM_SYS_chmod(a...) V850_SIM_SYSCALL_2 (15 , ##a)
-#define V850_SIM_SYS_chown(a...) V850_SIM_SYSCALL_2 (16 , ##a)
-#define V850_SIM_SYS_lseek(a...) V850_SIM_SYSCALL_3 (19 , ##a)
-/* #define V850_SIM_SYS_getpid(a...) V850_SIM_SYSCALL_1 (20 , ##a) */
-/* #define V850_SIM_SYS_isatty(a...) V850_SIM_SYSCALL_1 (21 , ##a) */
-/* #define V850_SIM_SYS_fstat(a...) V850_SIM_SYSCALL_1 (22 , ##a) */
-#define V850_SIM_SYS_time(a...) V850_SIM_SYSCALL_1 (23 , ##a)
-#define V850_SIM_SYS_poll(a...) V850_SIM_SYSCALL_3 (24 , ##a)
-#define V850_SIM_SYS_stat(a...) V850_SIM_SYSCALL_2 (38 , ##a)
-#define V850_SIM_SYS_pipe(a...) V850_SIM_SYSCALL_1 (42 , ##a)
-#define V850_SIM_SYS_times(a...) V850_SIM_SYSCALL_1 (43 , ##a)
-#define V850_SIM_SYS_execve(a...) V850_SIM_SYSCALL_3 (59 , ##a)
-#define V850_SIM_SYS_gettimeofday(a...) V850_SIM_SYSCALL_2 (116 , ##a)
-/* #define V850_SIM_SYS_utime(a...) V850_SIM_SYSCALL_2 (201 , ##a) */
-/* #define V850_SIM_SYS_wait(a...) V850_SIM_SYSCALL_1 (202 , ##a) */
-
-#define V850_SIM_SYS_make_raw(a...) V850_SIM_SYSCALL_1 (1024 , ##a)
-
-
-#define V850_SIM_SYSCALL_0(_call) \
-({ \
- register int call __asm__ ("r6") = _call; \
- register int rval __asm__ ("r10"); \
- __asm__ __volatile__ ("trap 31" \
- : "=r" (rval) \
- : "r" (call) \
- : "r11", "memory"); \
- rval; \
-})
-#define V850_SIM_SYSCALL_1(_call, _arg0) \
-({ \
- register int call __asm__ ("r6") = _call; \
- register long arg0 __asm__ ("r7") = (long)_arg0; \
- register int rval __asm__ ("r10"); \
- __asm__ __volatile__ ("trap 31" \
- : "=r" (rval) \
- : "r" (call), "r" (arg0) \
- : "r11", "memory"); \
- rval; \
-})
-#define V850_SIM_SYSCALL_2(_call, _arg0, _arg1) \
-({ \
- register int call __asm__ ("r6") = _call; \
- register long arg0 __asm__ ("r7") = (long)_arg0; \
- register long arg1 __asm__ ("r8") = (long)_arg1; \
- register int rval __asm__ ("r10"); \
- __asm__ __volatile__ ("trap 31" \
- : "=r" (rval) \
- : "r" (call), "r" (arg0), "r" (arg1) \
- : "r11", "memory"); \
- rval; \
-})
-#define V850_SIM_SYSCALL_3(_call, _arg0, _arg1, _arg2) \
-({ \
- register int call __asm__ ("r6") = _call; \
- register long arg0 __asm__ ("r7") = (long)_arg0; \
- register long arg1 __asm__ ("r8") = (long)_arg1; \
- register long arg2 __asm__ ("r9") = (long)_arg2; \
- register int rval __asm__ ("r10"); \
- __asm__ __volatile__ ("trap 31" \
- : "=r" (rval) \
- : "r" (call), "r" (arg0), "r" (arg1), "r" (arg2)\
- : "r11", "memory"); \
- rval; \
-})
-
-#define V850_SIM_SYSCALL(call, args...) \
- V850_SIM_SYS_##call (args)
-
-#endif /* __V850_SIMSYSCALL_H__ */
+++ /dev/null
-#ifndef __V850_SOCKET_H__
-#define __V850_SOCKET_H__
-
-#include <asm/sockios.h>
-
-/* For setsockoptions(2) */
-#define SOL_SOCKET 1
-
-#define SO_DEBUG 1
-#define SO_REUSEADDR 2
-#define SO_TYPE 3
-#define SO_ERROR 4
-#define SO_DONTROUTE 5
-#define SO_BROADCAST 6
-#define SO_SNDBUF 7
-#define SO_RCVBUF 8
-#define SO_SNDBUFFORCE 32
-#define SO_RCVBUFFORCE 33
-#define SO_KEEPALIVE 9
-#define SO_OOBINLINE 10
-#define SO_NO_CHECK 11
-#define SO_PRIORITY 12
-#define SO_LINGER 13
-#define SO_BSDCOMPAT 14
-/* To add :#define SO_REUSEPORT 15 */
-#define SO_PASSCRED 16
-#define SO_PEERCRED 17
-#define SO_RCVLOWAT 18
-#define SO_SNDLOWAT 19
-#define SO_RCVTIMEO 20
-#define SO_SNDTIMEO 21
-
-/* Security levels - as per NRL IPv6 - don't actually do anything */
-#define SO_SECURITY_AUTHENTICATION 22
-#define SO_SECURITY_ENCRYPTION_TRANSPORT 23
-#define SO_SECURITY_ENCRYPTION_NETWORK 24
-
-#define SO_BINDTODEVICE 25
-
-/* Socket filtering */
-#define SO_ATTACH_FILTER 26
-#define SO_DETACH_FILTER 27
-
-#define SO_PEERNAME 28
-#define SO_TIMESTAMP 29
-#define SCM_TIMESTAMP SO_TIMESTAMP
-
-#define SO_ACCEPTCONN 30
-
-#define SO_PEERSEC 31
-#define SO_PASSSEC 34
-#define SO_TIMESTAMPNS 35
-#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
-
-#define SO_MARK 36
-
-#endif /* __V850_SOCKET_H__ */
+++ /dev/null
-#ifndef __V850_SOCKIOS_H__
-#define __V850_SOCKIOS_H__
-
-/* Socket-level I/O control calls. */
-#define FIOSETOWN 0x8901
-#define SIOCSPGRP 0x8902
-#define FIOGETOWN 0x8903
-#define SIOCGPGRP 0x8904
-#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
-#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
-
-#endif /* __V850_SOCKIOS_H__ */
+++ /dev/null
-/*
- * include/asm-v850/stat.h -- v850 stat structure
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_STAT_H__
-#define __V850_STAT_H__
-
-#include <asm/posix_types.h>
-
-struct stat {
- unsigned int st_dev;
- unsigned long st_ino;
- unsigned int st_mode;
- unsigned int st_nlink;
- unsigned int st_uid;
- unsigned int st_gid;
- unsigned int st_rdev;
- long st_size;
- unsigned long st_blksize;
- unsigned long st_blocks;
- unsigned long st_atime;
- unsigned long __unused1;
- unsigned long st_mtime;
- unsigned long __unused2;
- unsigned long st_ctime;
- unsigned long __unused3;
- unsigned long __unused4;
- unsigned long __unused5;
-};
-
-struct stat64 {
- unsigned long long st_dev;
- unsigned long __unused1;
-
- unsigned long long st_ino;
-
- unsigned int st_mode;
- unsigned int st_nlink;
-
- unsigned int st_uid;
- unsigned int st_gid;
-
- unsigned long long st_rdev;
- unsigned long __unused3;
-
- long long st_size;
- unsigned long st_blksize;
-
- unsigned long st_blocks; /* No. of 512-byte blocks allocated */
- unsigned long __unused4; /* future possible st_blocks high bits */
-
- unsigned long st_atime;
- unsigned long st_atime_nsec;
-
- unsigned long st_mtime;
- unsigned long st_mtime_nsec;
-
- unsigned long st_ctime;
- unsigned long st_ctime_nsec;
-
- unsigned long __unused8;
-};
-
-#endif /* __V850_STAT_H__ */
+++ /dev/null
-#ifndef __V850_STATFS_H__
-#define __V850_STATFS_H__
-
-#include <asm-generic/statfs.h>
-
-#endif /* __V850_STATFS_H__ */
+++ /dev/null
-/*
- * include/asm-v850/string.h -- Architecture specific string routines
- *
- * Copyright (C) 2001,02 NEC Corporation
- * Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_STRING_H__
-#define __V850_STRING_H__
-
-#define __HAVE_ARCH_MEMCPY
-#define __HAVE_ARCH_MEMSET
-#define __HAVE_ARCH_MEMMOVE
-
-extern void *memcpy (void *, const void *, __kernel_size_t);
-extern void *memset (void *, int, __kernel_size_t);
-extern void *memmove (void *, const void *, __kernel_size_t);
-
-#endif /* __V850_STRING_H__ */
+++ /dev/null
-/*
- * include/asm-v850/system.h -- Low-level interrupt/thread ops
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_SYSTEM_H__
-#define __V850_SYSTEM_H__
-
-#include <linux/linkage.h>
-#include <asm/ptrace.h>
-
-
-/*
- * switch_to(n) should switch tasks to task ptr, first checking that
- * ptr isn't the current task, in which case it does nothing.
- */
-struct thread_struct;
-extern void *switch_thread (struct thread_struct *last,
- struct thread_struct *next);
-#define switch_to(prev,next,last) \
- do { \
- if (prev != next) { \
- (last) = switch_thread (&prev->thread, &next->thread); \
- } \
- } while (0)
-
-
-/* Enable/disable interrupts. */
-#define local_irq_enable() __asm__ __volatile__ ("ei")
-#define local_irq_disable() __asm__ __volatile__ ("di")
-
-#define local_save_flags(flags) \
- __asm__ __volatile__ ("stsr %1, %0" : "=r" (flags) : "i" (SR_PSW))
-#define local_restore_flags(flags) \
- __asm__ __volatile__ ("ldsr %0, %1" :: "r" (flags), "i" (SR_PSW))
-
-/* For spinlocks etc */
-#define local_irq_save(flags) \
- do { local_save_flags (flags); local_irq_disable (); } while (0)
-#define local_irq_restore(flags) \
- local_restore_flags (flags);
-
-
-static inline int irqs_disabled (void)
-{
- unsigned flags;
- local_save_flags (flags);
- return !!(flags & 0x20);
-}
-
-
-/*
- * Force strict CPU ordering.
- * Not really required on v850...
- */
-#define nop() __asm__ __volatile__ ("nop")
-#define mb() __asm__ __volatile__ ("" ::: "memory")
-#define rmb() mb ()
-#define wmb() mb ()
-#define read_barrier_depends() ((void)0)
-#define set_mb(var, value) do { xchg (&var, value); } while (0)
-
-#define smp_mb() mb ()
-#define smp_rmb() rmb ()
-#define smp_wmb() wmb ()
-#define smp_read_barrier_depends() read_barrier_depends()
-
-#define xchg(ptr, with) \
- ((__typeof__ (*(ptr)))__xchg ((unsigned long)(with), (ptr), sizeof (*(ptr))))
-
-static inline unsigned long __xchg (unsigned long with,
- __volatile__ void *ptr, int size)
-{
- unsigned long tmp, flags;
-
- local_irq_save (flags);
-
- switch (size) {
- case 1:
- tmp = *(unsigned char *)ptr;
- *(unsigned char *)ptr = with;
- break;
- case 2:
- tmp = *(unsigned short *)ptr;
- *(unsigned short *)ptr = with;
- break;
- case 4:
- tmp = *(unsigned long *)ptr;
- *(unsigned long *)ptr = with;
- break;
- }
-
- local_irq_restore (flags);
-
- return tmp;
-}
-
-#include <asm-generic/cmpxchg-local.h>
-
-/*
- * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
- * them available.
- */
-#define cmpxchg_local(ptr, o, n) \
- ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
- (unsigned long)(n), sizeof(*(ptr))))
-#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
-
-#ifndef CONFIG_SMP
-#include <asm-generic/cmpxchg.h>
-#endif
-
-#define arch_align_stack(x) (x)
-
-#endif /* __V850_SYSTEM_H__ */
+++ /dev/null
-/*
- * include/asm-v850/teg.h -- NB85E-TEG cpu chip
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_TEG_H__
-#define __V850_TEG_H__
-
-
-/* The TEG uses the V850E cpu core. */
-#include <asm/v850e.h>
-#include <asm/v850e_cache.h>
-
-
-#define CPU_MODEL "v850e/nb85e-teg"
-#define CPU_MODEL_LONG "NEC V850E/NB85E TEG"
-
-
-/* For <asm/entry.h> */
-/* We use on-chip RAM, for a few miscellaneous variables that must be
- accessible using a load instruction relative to R0. On the NB85E/TEG,
- There's 60KB of iRAM starting at 0xFFFF0000, however we need the base
- address to be addressable by a 16-bit signed offset, so we only use the
- second half of it starting from 0xFFFF8000. */
-#define R0_RAM_ADDR 0xFFFF8000
-
-
-/* Hardware-specific interrupt numbers (in the kernel IRQ namespace).
- Some of these are parameterized even though there's only a single
- interrupt, for compatibility with some generic code that works on other
- processor models. */
-#define IRQ_INTCMD(n) 6 /* interval timer interrupt */
-#define IRQ_INTCMD_NUM 1
-#define IRQ_INTSER(n) 16 /* UART reception error */
-#define IRQ_INTSER_NUM 1
-#define IRQ_INTSR(n) 17 /* UART reception completion */
-#define IRQ_INTSR_NUM 1
-#define IRQ_INTST(n) 18 /* UART transmission completion */
-#define IRQ_INTST_NUM 1
-
-/* For <asm/irq.h> */
-#define NUM_CPU_IRQS 64
-
-
-/* TEG UART details. */
-#define V850E_UART_BASE_ADDR(n) (0xFFFFF600 + 0x10 * (n))
-#define V850E_UART_ASIM_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x0)
-#define V850E_UART_ASIS_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x2)
-#define V850E_UART_ASIF_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x4)
-#define V850E_UART_CKSR_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x6)
-#define V850E_UART_BRGC_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x8)
-#define V850E_UART_TXB_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0xA)
-#define V850E_UART_RXB_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0xC)
-#define V850E_UART_NUM_CHANNELS 1
-#define V850E_UART_BASE_FREQ CPU_CLOCK_FREQ
-/* This is a function that gets called before configuring the UART. */
-#define V850E_UART_PRE_CONFIGURE teg_uart_pre_configure
-#ifndef __ASSEMBLY__
-extern void teg_uart_pre_configure (unsigned chan,
- unsigned cflags, unsigned baud);
-#endif
-
-
-/* The TEG RTPU. */
-#define V850E_RTPU_BASE_ADDR 0xFFFFF210
-
-
-/* TEG series timer D details. */
-#define V850E_TIMER_D_BASE_ADDR 0xFFFFF210
-#define V850E_TIMER_D_TMCD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x0)
-#define V850E_TIMER_D_TMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x4)
-#define V850E_TIMER_D_CMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x8)
-#define V850E_TIMER_D_BASE_FREQ CPU_CLOCK_FREQ
-
-
-/* `Interrupt Source Select' control register. */
-#define TEG_ISS_ADDR 0xFFFFF7FA
-#define TEG_ISS (*(volatile u8 *)TEG_ISS_ADDR)
-
-/* Port 0 I/O register (bits 0-3 used). */
-#define TEG_PORT0_IO_ADDR 0xFFFFF7F2
-#define TEG_PORT0_IO (*(volatile u8 *)TEG_PORT0_IO_ADDR)
-/* Port 0 control register (bits 0-3 control mode, 0 = output, 1 = input). */
-#define TEG_PORT0_PM_ADDR 0xFFFFF7F4
-#define TEG_PORT0_PM (*(volatile u8 *)TEG_PORT0_PM_ADDR)
-
-
-#ifndef __ASSEMBLY__
-extern void teg_init_irqs (void);
-#endif
-
-
-#endif /* __V850_TEG_H__ */
+++ /dev/null
-#ifndef __V850_TERMBITS_H__
-#define __V850_TERMBITS_H__
-
-#include <linux/posix_types.h>
-
-typedef unsigned char cc_t;
-typedef unsigned int speed_t;
-typedef unsigned int tcflag_t;
-
-#define NCCS 19
-struct termios {
- tcflag_t c_iflag; /* input mode flags */
- tcflag_t c_oflag; /* output mode flags */
- tcflag_t c_cflag; /* control mode flags */
- tcflag_t c_lflag; /* local mode flags */
- cc_t c_line; /* line discipline */
- cc_t c_cc[NCCS]; /* control characters */
-};
-
-struct termios2 {
- tcflag_t c_iflag; /* input mode flags */
- tcflag_t c_oflag; /* output mode flags */
- tcflag_t c_cflag; /* control mode flags */
- tcflag_t c_lflag; /* local mode flags */
- cc_t c_line; /* line discipline */
- cc_t c_cc[NCCS]; /* control characters */
- speed_t c_ispeed; /* input speed */
- speed_t c_ospeed; /* output speed */
-};
-
-struct ktermios {
- tcflag_t c_iflag; /* input mode flags */
- tcflag_t c_oflag; /* output mode flags */
- tcflag_t c_cflag; /* control mode flags */
- tcflag_t c_lflag; /* local mode flags */
- cc_t c_line; /* line discipline */
- cc_t c_cc[NCCS]; /* control characters */
- speed_t c_ispeed; /* input speed */
- speed_t c_ospeed; /* output speed */
-};
-
-/* c_cc characters */
-#define VINTR 0
-#define VQUIT 1
-#define VERASE 2
-#define VKILL 3
-#define VEOF 4
-#define VTIME 5
-#define VMIN 6
-#define VSWTC 7
-#define VSTART 8
-#define VSTOP 9
-#define VSUSP 10
-#define VEOL 11
-#define VREPRINT 12
-#define VDISCARD 13
-#define VWERASE 14
-#define VLNEXT 15
-#define VEOL2 16
-
-
-/* c_iflag bits */
-#define IGNBRK 0000001
-#define BRKINT 0000002
-#define IGNPAR 0000004
-#define PARMRK 0000010
-#define INPCK 0000020
-#define ISTRIP 0000040
-#define INLCR 0000100
-#define IGNCR 0000200
-#define ICRNL 0000400
-#define IUCLC 0001000
-#define IXON 0002000
-#define IXANY 0004000
-#define IXOFF 0010000
-#define IMAXBEL 0020000
-#define IUTF8 0040000
-
-/* c_oflag bits */
-#define OPOST 0000001
-#define OLCUC 0000002
-#define ONLCR 0000004
-#define OCRNL 0000010
-#define ONOCR 0000020
-#define ONLRET 0000040
-#define OFILL 0000100
-#define OFDEL 0000200
-#define NLDLY 0000400
-#define NL0 0000000
-#define NL1 0000400
-#define CRDLY 0003000
-#define CR0 0000000
-#define CR1 0001000
-#define CR2 0002000
-#define CR3 0003000
-#define TABDLY 0014000
-#define TAB0 0000000
-#define TAB1 0004000
-#define TAB2 0010000
-#define TAB3 0014000
-#define XTABS 0014000
-#define BSDLY 0020000
-#define BS0 0000000
-#define BS1 0020000
-#define VTDLY 0040000
-#define VT0 0000000
-#define VT1 0040000
-#define FFDLY 0100000
-#define FF0 0000000
-#define FF1 0100000
-
-/* c_cflag bit meaning */
-#define CBAUD 0010017
-#define B0 0000000 /* hang up */
-#define B50 0000001
-#define B75 0000002
-#define B110 0000003
-#define B134 0000004
-#define B150 0000005
-#define B200 0000006
-#define B300 0000007
-#define B600 0000010
-#define B1200 0000011
-#define B1800 0000012
-#define B2400 0000013
-#define B4800 0000014
-#define B9600 0000015
-#define B19200 0000016
-#define B38400 0000017
-#define EXTA B19200
-#define EXTB B38400
-#define CSIZE 0000060
-#define CS5 0000000
-#define CS6 0000020
-#define CS7 0000040
-#define CS8 0000060
-#define CSTOPB 0000100
-#define CREAD 0000200
-#define PARENB 0000400
-#define PARODD 0001000
-#define HUPCL 0002000
-#define CLOCAL 0004000
-#define CBAUDEX 0010000
-#define BOTHER 0010000
-#define B57600 0010001
-#define B115200 0010002
-#define B230400 0010003
-#define B460800 0010004
-#define B500000 0010005
-#define B576000 0010006
-#define B921600 0010007
-#define B1000000 0010010
-#define B1152000 0010011
-#define B1500000 0010012
-#define B2000000 0010013
-#define B2500000 0010014
-#define B3000000 0010015
-#define B3500000 0010016
-#define B4000000 0010017
-#define CIBAUD 002003600000 /* input baud rate */
-#define CMSPAR 010000000000 /* mark or space (stick) parity */
-#define CRTSCTS 020000000000 /* flow control */
-
-#define IBSHIFT 16 /* Shifr from CBAUD to CIBAUD */
-
-/* c_lflag bits */
-#define ISIG 0000001
-#define ICANON 0000002
-#define XCASE 0000004
-#define ECHO 0000010
-#define ECHOE 0000020
-#define ECHOK 0000040
-#define ECHONL 0000100
-#define NOFLSH 0000200
-#define TOSTOP 0000400
-#define ECHOCTL 0001000
-#define ECHOPRT 0002000
-#define ECHOKE 0004000
-#define FLUSHO 0010000
-#define PENDIN 0040000
-#define IEXTEN 0100000
-
-
-/* tcflow() and TCXONC use these */
-#define TCOOFF 0
-#define TCOON 1
-#define TCIOFF 2
-#define TCION 3
-
-/* tcflush() and TCFLSH use these */
-#define TCIFLUSH 0
-#define TCOFLUSH 1
-#define TCIOFLUSH 2
-
-/* tcsetattr uses these */
-#define TCSANOW 0
-#define TCSADRAIN 1
-#define TCSAFLUSH 2
-
-#endif /* __V850_TERMBITS_H__ */
+++ /dev/null
-#ifndef __V850_TERMIOS_H__
-#define __V850_TERMIOS_H__
-
-#include <asm/termbits.h>
-#include <asm/ioctls.h>
-
-struct winsize {
- unsigned short ws_row;
- unsigned short ws_col;
- unsigned short ws_xpixel;
- unsigned short ws_ypixel;
-};
-
-#define NCC 8
-struct termio {
- unsigned short c_iflag; /* input mode flags */
- unsigned short c_oflag; /* output mode flags */
- unsigned short c_cflag; /* control mode flags */
- unsigned short c_lflag; /* local mode flags */
- unsigned char c_line; /* line discipline */
- unsigned char c_cc[NCC]; /* control characters */
-};
-
-/* modem lines */
-#define TIOCM_LE 0x001
-#define TIOCM_DTR 0x002
-#define TIOCM_RTS 0x004
-#define TIOCM_ST 0x008
-#define TIOCM_SR 0x010
-#define TIOCM_CTS 0x020
-#define TIOCM_CAR 0x040
-#define TIOCM_RNG 0x080
-#define TIOCM_DSR 0x100
-#define TIOCM_CD TIOCM_CAR
-#define TIOCM_RI TIOCM_RNG
-#define TIOCM_OUT1 0x2000
-#define TIOCM_OUT2 0x4000
-#define TIOCM_LOOP 0x8000
-
-/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
-
-#ifdef __KERNEL__
-
-/* intr=^C quit=^\ erase=del kill=^U
- eof=^D vtime=\0 vmin=\1 sxtc=\0
- start=^Q stop=^S susp=^Z eol=\0
- reprint=^R discard=^U werase=^W lnext=^V
- eol2=\0
-*/
-#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
-
-/*
- * Translate a "termio" structure into a "termios". Ugh.
- */
-#define SET_LOW_TERMIOS_BITS(termios, termio, x) { \
- unsigned short __tmp; \
- get_user(__tmp,&(termio)->x); \
- *(unsigned short *) &(termios)->x = __tmp; \
-}
-
-#define user_termio_to_kernel_termios(termios, termio) \
-({ \
- SET_LOW_TERMIOS_BITS(termios, termio, c_iflag); \
- SET_LOW_TERMIOS_BITS(termios, termio, c_oflag); \
- SET_LOW_TERMIOS_BITS(termios, termio, c_cflag); \
- SET_LOW_TERMIOS_BITS(termios, termio, c_lflag); \
- copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
-})
-
-/*
- * Translate a "termios" structure into a "termio". Ugh.
- */
-#define kernel_termios_to_user_termio(termio, termios) \
-({ \
- put_user((termios)->c_iflag, &(termio)->c_iflag); \
- put_user((termios)->c_oflag, &(termio)->c_oflag); \
- put_user((termios)->c_cflag, &(termio)->c_cflag); \
- put_user((termios)->c_lflag, &(termio)->c_lflag); \
- put_user((termios)->c_line, &(termio)->c_line); \
- copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
-})
-
-#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2))
-#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2))
-#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
-#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
-
-#endif /* __KERNEL__ */
-
-#endif /* __V850_TERMIOS_H__ */
+++ /dev/null
-/*
- * include/asm-v850/thread_info.h -- v850 low-level thread information
- *
- * Copyright (C) 2002 NEC Corporation
- * Copyright (C) 2002 Miles Bader <miles@gnu.org>
- * Copyright (C) 2002 David Howells (dhowells@redhat.com)
- * - Incorporating suggestions made by Linus Torvalds and Dave Miller
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * This file was derived from the PPC version, include/asm-ppc/thread_info.h
- * which was adapted from the i386 version by Paul Mackerras
- */
-
-#ifndef __V850_THREAD_INFO_H__
-#define __V850_THREAD_INFO_H__
-
-#ifdef __KERNEL__
-
-#ifndef __ASSEMBLY__
-
-/*
- * low level task data.
- * If you change this, change the TI_* offsets below to match.
- */
-struct thread_info {
- struct task_struct *task; /* main task structure */
- struct exec_domain *exec_domain; /* execution domain */
- unsigned long flags; /* low level flags */
- int cpu; /* cpu we're on */
- int preempt_count; /* 0 => preemptable,
- <0 => BUG */
- struct restart_block restart_block;
-};
-
-#define INIT_THREAD_INFO(tsk) \
-{ \
- .task = &tsk, \
- .exec_domain = &default_exec_domain, \
- .flags = 0, \
- .cpu = 0, \
- .preempt_count = 1, \
- .restart_block = { \
- .fn = do_no_restart_syscall, \
- }, \
-}
-
-#define init_thread_info (init_thread_union.thread_info)
-#define init_stack (init_thread_union.stack)
-
-/*
- * macros/functions for gaining access to the thread information structure
- */
-
-/* thread information allocation */
-#define alloc_thread_info(tsk) ((struct thread_info *) \
- __get_free_pages(GFP_KERNEL, 1))
-#define free_thread_info(ti) free_pages((unsigned long) (ti), 1)
-
-#endif /* __ASSEMBLY__ */
-
-
-/*
- * Offsets in thread_info structure, used in assembly code
- */
-#define TI_TASK 0
-#define TI_EXECDOMAIN 4
-#define TI_FLAGS 8
-#define TI_CPU 12
-#define TI_PREEMPT 16
-
-#define PREEMPT_ACTIVE 0x4000000
-
-/*
- * thread information flag bit numbers
- */
-#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
-#define TIF_SIGPENDING 1 /* signal pending */
-#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
-#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling
- TIF_NEED_RESCHED */
-#define TIF_MEMDIE 4
-
-/* as above, but as bit values */
-#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
-#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
-#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
-#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
-
-
-/* Size of kernel stack for each process. */
-#define THREAD_SIZE 0x2000
-
-/* The alignment of kernel threads, with thread_info structures at their
- base. Thus, a pointer for a task's task structure can be derived from
- its kernel stack pointer. */
-#define THREAD_ALIGNMENT THREAD_SIZE
-#define THREAD_MASK (-THREAD_ALIGNMENT)
-
-
-#ifdef __ASSEMBLY__
-
-/* Put a pointer to the current thread_info structure into REG. Note that
- this definition requires THREAD_MASK to be representable as a signed
- 16-bit value. */
-#define GET_CURRENT_THREAD(reg) \
- /* Use `addi' and then `and' instead of just `andi', because \
- `addi' sign-extends the immediate value, whereas `andi' \
- zero-extends it. */ \
- addi THREAD_MASK, r0, reg; \
- and sp, reg
-
-#else
-
-/* Return a pointer to the current thread_info structure. */
-static inline struct thread_info *current_thread_info (void)
-{
- register unsigned long sp __asm__ ("sp");
- return (struct thread_info *)(sp & THREAD_MASK);
-}
-
-#endif /* __ASSEMBLY__ */
-
-
-#endif /* __KERNEL__ */
-
-#endif /* __V850_THREAD_INFO_H__ */
+++ /dev/null
-/*
- * linux/include/asm-v850/timex.h
- *
- * v850 architecture timex specifications
- */
-#ifndef __V850_TIMEX_H__
-#define __V850_TIMEX_H__
-
-#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
-
-typedef unsigned long cycles_t;
-
-static inline cycles_t get_cycles(void)
-{
- return 0;
-}
-
-#endif /* __V850_TIMEX_H__ */
+++ /dev/null
-/*
- * include/asm-v850/tlb.h
- *
- * Copyright (C) 2002 NEC Corporation
- * Copyright (C) 2002 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_TLB_H__
-#define __V850_TLB_H__
-
-#define tlb_flush(tlb) ((void)0)
-
-#include <asm-generic/tlb.h>
-
-#endif /* __V850_TLB_H__ */
+++ /dev/null
-/*
- * include/asm-v850/tlbflush.h
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_TLBFLUSH_H__
-#define __V850_TLBFLUSH_H__
-
-#include <asm/machdep.h>
-
-
-/*
- * flush all user-space atc entries.
- */
-static inline void __flush_tlb(void)
-{
- BUG ();
-}
-
-static inline void __flush_tlb_one(unsigned long addr)
-{
- BUG ();
-}
-
-#define flush_tlb() __flush_tlb()
-
-/*
- * flush all atc entries (both kernel and user-space entries).
- */
-static inline void flush_tlb_all(void)
-{
- BUG ();
-}
-
-static inline void flush_tlb_mm(struct mm_struct *mm)
-{
- BUG ();
-}
-
-static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
-{
- BUG ();
-}
-
-static inline void flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
-{
- BUG ();
-}
-
-static inline void flush_tlb_kernel_page(unsigned long addr)
-{
- BUG ();
-}
-
-#endif /* __V850_TLBFLUSH_H__ */
+++ /dev/null
-#ifndef __V850_TOPOLOGY_H__
-#define __V850_TOPOLOGY_H__
-
-#include <asm-generic/topology.h>
-
-#endif /* __V850_TOPOLOGY_H__ */
+++ /dev/null
-#ifndef __V850_TYPES_H__
-#define __V850_TYPES_H__
-
-#ifndef __ASSEMBLY__
-
-/*
- * This file is never included by application software unless
- * explicitly requested (e.g., via linux/types.h) in which case the
- * application is Linux specific so (user-) name space pollution is
- * not a major issue. However, for interoperability, libraries still
- * need to be careful to avoid a name clashes.
- */
-#include <asm-generic/int-ll64.h>
-
-typedef unsigned short umode_t;
-
-#endif /* !__ASSEMBLY__ */
-
-/*
- * These aren't exported outside the kernel to avoid name space clashes
- */
-#ifdef __KERNEL__
-
-#define BITS_PER_LONG 32
-
-#ifndef __ASSEMBLY__
-
-/* Dma addresses are 32-bits wide. */
-
-typedef u32 dma_addr_t;
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* __KERNEL__ */
-
-#endif /* __V850_TYPES_H__ */
+++ /dev/null
-#ifndef __V850_UACCESS_H__
-#define __V850_UACCESS_H__
-
-/*
- * User space memory access functions
- */
-
-#include <linux/errno.h>
-#include <linux/string.h>
-
-#include <asm/segment.h>
-#include <asm/machdep.h>
-
-#define VERIFY_READ 0
-#define VERIFY_WRITE 1
-
-static inline int access_ok (int type, const void *addr, unsigned long size)
-{
- /* XXX I guess we should check against real ram bounds at least, and
- possibly make sure ADDR is not within the kernel.
- For now we just check to make sure it's not a small positive
- or negative value, as that will at least catch some kinds of
- error. In particular, we make sure that ADDR's not within the
- interrupt vector area, which we know starts at zero, or within the
- peripheral-I/O area, which is located just _before_ zero. */
- unsigned long val = (unsigned long)addr;
- return val >= (0x80 + NUM_CPU_IRQS*16) && val < 0xFFFFF000;
-}
-
-/*
- * The exception table consists of pairs of addresses: the first is the
- * address of an instruction that is allowed to fault, and the second is
- * the address at which the program should continue. No registers are
- * modified, so it is entirely up to the continuation code to figure out
- * what to do.
- *
- * All the routines below use bits of fixup code that are out of line
- * with the main instruction path. This means when everything is well,
- * we don't even have to jump over them. Further, they do not intrude
- * on our cache or tlb entries.
- */
-
-struct exception_table_entry
-{
- unsigned long insn, fixup;
-};
-
-/* Returns 0 if exception not found and fixup otherwise. */
-extern unsigned long search_exception_table (unsigned long);
-
-
-/*
- * These are the main single-value transfer routines. They automatically
- * use the right size if we just have the right pointer type.
- */
-
-extern int bad_user_access_length (void);
-
-#define __get_user(var, ptr) \
- ({ \
- int __gu_err = 0; \
- typeof(*(ptr)) __gu_val = 0; \
- switch (sizeof (*(ptr))) { \
- case 1: \
- case 2: \
- case 4: \
- __gu_val = *(ptr); \
- break; \
- case 8: \
- memcpy(&__gu_val, ptr, sizeof(__gu_val)); \
- break; \
- default: \
- __gu_val = 0; \
- __gu_err = __get_user_bad (); \
- break; \
- } \
- (var) = __gu_val; \
- __gu_err; \
- })
-#define __get_user_bad() (bad_user_access_length (), (-EFAULT))
-
-#define __put_user(var, ptr) \
- ({ \
- int __pu_err = 0; \
- switch (sizeof (*(ptr))) { \
- case 1: \
- case 2: \
- case 4: \
- *(ptr) = (var); \
- break; \
- case 8: { \
- typeof(*(ptr)) __pu_val = 0; \
- memcpy(ptr, &__pu_val, sizeof(__pu_val)); \
- } \
- break; \
- default: \
- __pu_err = __put_user_bad (); \
- break; \
- } \
- __pu_err; \
- })
-#define __put_user_bad() (bad_user_access_length (), (-EFAULT))
-
-#define put_user(x, ptr) __put_user(x, ptr)
-#define get_user(x, ptr) __get_user(x, ptr)
-
-#define __copy_from_user(to, from, n) (memcpy (to, from, n), 0)
-#define __copy_to_user(to, from, n) (memcpy(to, from, n), 0)
-
-#define __copy_to_user_inatomic __copy_to_user
-#define __copy_from_user_inatomic __copy_from_user
-
-#define copy_from_user(to, from, n) __copy_from_user (to, from, n)
-#define copy_to_user(to, from, n) __copy_to_user(to, from, n)
-
-#define copy_to_user_ret(to,from,n,retval) \
- ({ if (copy_to_user (to,from,n)) return retval; })
-
-#define copy_from_user_ret(to,from,n,retval) \
- ({ if (copy_from_user (to,from,n)) return retval; })
-
-/*
- * Copy a null terminated string from userspace.
- */
-
-static inline long
-strncpy_from_user (char *dst, const char *src, long count)
-{
- char *tmp;
- strncpy (dst, src, count);
- for (tmp = dst; *tmp && count > 0; tmp++, count--)
- ;
- return tmp - dst;
-}
-
-/*
- * Return the size of a string (including the ending 0)
- *
- * Return 0 on exception, a value greater than N if too long
- */
-static inline long strnlen_user (const char *src, long n)
-{
- return strlen (src) + 1;
-}
-
-#define strlen_user(str) strnlen_user (str, 32767)
-
-/*
- * Zero Userspace
- */
-
-static inline unsigned long
-clear_user (void *to, unsigned long n)
-{
- memset (to, 0, n);
- return 0;
-}
-
-#endif /* __V850_UACCESS_H__ */
+++ /dev/null
-#ifndef __V850_UCONTEXT_H__
-#define __V850_UCONTEXT_H__
-
-#include <asm/sigcontext.h>
-
-struct ucontext {
- unsigned long uc_flags;
- struct ucontext *uc_link;
- stack_t uc_stack;
- struct sigcontext uc_mcontext;
- sigset_t uc_sigmask; /* mask last for extensibility */
-};
-
-#endif /* __V850_UCONTEXT_H__ */
+++ /dev/null
-/*
- * Copyright (C) 2001 NEC Corporation
- * Copyright (C) 2001 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Note that some v850 chips support unaligned access, but it seems too
- * annoying to use.
- */
-#ifndef _ASM_V850_UNALIGNED_H
-#define _ASM_V850_UNALIGNED_H
-
-#include <linux/unaligned/be_byteshift.h>
-#include <linux/unaligned/le_byteshift.h>
-#include <linux/unaligned/generic.h>
-
-#define get_unaligned __get_unaligned_le
-#define put_unaligned __put_unaligned_le
-
-#endif /* _ASM_V850_UNALIGNED_H */
+++ /dev/null
-/*
- * include/asm-v850/unistd.h -- System call numbers and invocation mechanism
- *
- * Copyright (C) 2001,02,03,04 NEC Electronics Corporation
- * Copyright (C) 2001,02,03,04 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_UNISTD_H__
-#define __V850_UNISTD_H__
-
-#define __NR_restart_syscall 0
-#define __NR_exit 1
-#define __NR_fork 2
-#define __NR_read 3
-#define __NR_write 4
-#define __NR_open 5
-#define __NR_close 6
-#define __NR_waitpid 7
-#define __NR_creat 8
-#define __NR_link 9
-#define __NR_unlink 10
-#define __NR_execve 11
-#define __NR_chdir 12
-#define __NR_time 13
-#define __NR_mknod 14
-#define __NR_chmod 15
-#define __NR_chown 16
-#define __NR_break 17
-#define __NR_lseek 19
-#define __NR_getpid 20
-#define __NR_mount 21
-#define __NR_umount 22
-#define __NR_setuid 23
-#define __NR_getuid 24
-#define __NR_stime 25
-#define __NR_ptrace 26
-#define __NR_alarm 27
-#define __NR_pause 29
-#define __NR_utime 30
-#define __NR_stty 31
-#define __NR_gtty 32
-#define __NR_access 33
-#define __NR_nice 34
-#define __NR_ftime 35
-#define __NR_sync 36
-#define __NR_kill 37
-#define __NR_rename 38
-#define __NR_mkdir 39
-#define __NR_rmdir 40
-#define __NR_dup 41
-#define __NR_pipe 42
-#define __NR_times 43
-#define __NR_prof 44
-#define __NR_brk 45
-#define __NR_setgid 46
-#define __NR_getgid 47
-#define __NR_signal 48
-#define __NR_geteuid 49
-#define __NR_getegid 50
-#define __NR_acct 51
-#define __NR_umount2 52
-#define __NR_lock 53
-#define __NR_ioctl 54
-#define __NR_fcntl 55
-#define __NR_setpgid 57
-#define __NR_umask 60
-#define __NR_chroot 61
-#define __NR_ustat 62
-#define __NR_dup2 63
-#define __NR_getppid 64
-#define __NR_getpgrp 65
-#define __NR_setsid 66
-#define __NR_sigaction 67
-#define __NR_sgetmask 68
-#define __NR_ssetmask 69
-#define __NR_setreuid 70
-#define __NR_setregid 71
-#define __NR_sigsuspend 72
-#define __NR_sigpending 73
-#define __NR_sethostname 74
-#define __NR_setrlimit 75
-#define __NR_ugetrlimit 76
-#define __NR_getrusage 77
-#define __NR_gettimeofday 78
-#define __NR_settimeofday 79
-#define __NR_getgroups 80
-#define __NR_setgroups 81
-#define __NR_select 82
-#define __NR_symlink 83
-#define __NR_readlink 85
-#define __NR_uselib 86
-#define __NR_swapon 87
-#define __NR_reboot 88
-#define __NR_readdir 89
-#define __NR_mmap 90
-#define __NR_munmap 91
-#define __NR_truncate 92
-#define __NR_ftruncate 93
-#define __NR_fchmod 94
-#define __NR_fchown 95
-#define __NR_getpriority 96
-#define __NR_setpriority 97
-#define __NR_profil 98
-#define __NR_statfs 99
-#define __NR_fstatfs 100
-#define __NR_socketcall 102
-#define __NR_syslog 103
-#define __NR_setitimer 104
-#define __NR_getitimer 105
-#define __NR_stat 106
-#define __NR_lstat 107
-#define __NR_fstat 108
-#define __NR_vhangup 111
-#define __NR_wait4 114
-#define __NR_swapoff 115
-#define __NR_sysinfo 116
-#define __NR_ipc 117
-#define __NR_fsync 118
-#define __NR_sigreturn 119
-#define __NR_clone 120
-#define __NR_setdomainname 121
-#define __NR_uname 122
-#define __NR_cacheflush 123
-#define __NR_adjtimex 124
-#define __NR_mprotect 125
-#define __NR_sigprocmask 126
-#define __NR_create_module 127
-#define __NR_init_module 128
-#define __NR_delete_module 129
-#define __NR_get_kernel_syms 130
-#define __NR_quotactl 131
-#define __NR_getpgid 132
-#define __NR_fchdir 133
-#define __NR_bdflush 134
-#define __NR_sysfs 135
-#define __NR_personality 136
-#define __NR_afs_syscall 137 /* Syscall for Andrew File System */
-#define __NR_setfsuid 138
-#define __NR_setfsgid 139
-#define __NR__llseek 140
-#define __NR_getdents 141
-#define __NR_flock 143
-#define __NR_msync 144
-#define __NR_readv 145
-#define __NR_writev 146
-#define __NR_getsid 147
-#define __NR_fdatasync 148
-#define __NR__sysctl 149
-#define __NR_mlock 150
-#define __NR_munlock 151
-#define __NR_mlockall 152
-#define __NR_munlockall 153
-#define __NR_sched_setparam 154
-#define __NR_sched_getparam 155
-#define __NR_sched_setscheduler 156
-#define __NR_sched_getscheduler 157
-#define __NR_sched_yield 158
-#define __NR_sched_get_priority_max 159
-#define __NR_sched_get_priority_min 160
-#define __NR_sched_rr_get_interval 161
-#define __NR_nanosleep 162
-#define __NR_mremap 163
-#define __NR_setresuid 164
-#define __NR_getresuid 165
-#define __NR_query_module 167
-#define __NR_poll 168
-#define __NR_nfsservctl 169
-#define __NR_setresgid 170
-#define __NR_getresgid 171
-#define __NR_prctl 172
-#define __NR_rt_sigreturn 173
-#define __NR_rt_sigaction 174
-#define __NR_rt_sigprocmask 175
-#define __NR_rt_sigpending 176
-#define __NR_rt_sigtimedwait 177
-#define __NR_rt_sigqueueinfo 178
-#define __NR_rt_sigsuspend 179
-#define __NR_pread 180
-#define __NR_pwrite 181
-#define __NR_lchown 182
-#define __NR_getcwd 183
-#define __NR_capget 184
-#define __NR_capset 185
-#define __NR_sigaltstack 186
-#define __NR_sendfile 187
-#define __NR_getpmsg 188 /* some people actually want streams */
-#define __NR_putpmsg 189 /* some people actually want streams */
-#define __NR_vfork 190
-#define __NR_mmap2 192
-#define __NR_truncate64 193
-#define __NR_ftruncate64 194
-#define __NR_stat64 195
-#define __NR_lstat64 196
-#define __NR_fstat64 197
-#define __NR_fcntl64 198
-#define __NR_getdents64 199
-#define __NR_pivot_root 200
-#define __NR_gettid 201
-#define __NR_tkill 202
-
-#ifdef __KERNEL__
-
-#define __ARCH_WANT_IPC_PARSE_VERSION
-#define __ARCH_WANT_OLD_READDIR
-#define __ARCH_WANT_STAT64
-#define __ARCH_WANT_SYS_ALARM
-#define __ARCH_WANT_SYS_GETHOSTNAME
-#define __ARCH_WANT_SYS_PAUSE
-#define __ARCH_WANT_SYS_SGETMASK
-#define __ARCH_WANT_SYS_SIGNAL
-#define __ARCH_WANT_SYS_TIME
-#define __ARCH_WANT_SYS_UTIME
-#define __ARCH_WANT_SYS_WAITPID
-#define __ARCH_WANT_SYS_SOCKETCALL
-#define __ARCH_WANT_SYS_FADVISE64
-#define __ARCH_WANT_SYS_GETPGRP
-#define __ARCH_WANT_SYS_LLSEEK
-#define __ARCH_WANT_SYS_NICE
-#define __ARCH_WANT_SYS_OLDUMOUNT
-#define __ARCH_WANT_SYS_SIGPENDING
-#define __ARCH_WANT_SYS_SIGPROCMASK
-#define __ARCH_WANT_SYS_RT_SIGACTION
-
-/*
- * "Conditional" syscalls
- */
-#define cond_syscall(name) \
- asm (".weak\t" C_SYMBOL_STRING(name) ";" \
- ".set\t" C_SYMBOL_STRING(name) "," C_SYMBOL_STRING(sys_ni_syscall))
-#if 0
-/* This doesn't work if there's a function prototype for NAME visible,
- because the argument types probably won't match. */
-#define cond_syscall(name) \
- void name (void) __attribute__ ((weak, alias ("sys_ni_syscall")));
-#endif
-
-#endif /* __KERNEL__ */
-#endif /* __V850_UNISTD_H__ */
+++ /dev/null
-#ifndef __V850_USER_H__
-#define __V850_USER_H__
-
-/* Adapted from <asm-ppc/user.h>. */
-
-#include <linux/ptrace.h>
-#include <asm/page.h>
-
-/*
- * Core file format: The core file is written in such a way that gdb
- * can understand it and provide useful information to the user (under
- * linux we use the `trad-core' bfd, NOT the osf-core). The file contents
- * are as follows:
- *
- * upage: 1 page consisting of a user struct that tells gdb
- * what is present in the file. Directly after this is a
- * copy of the task_struct, which is currently not used by gdb,
- * but it may come in handy at some point. All of the registers
- * are stored as part of the upage. The upage should always be
- * only one page long.
- * data: The data segment follows next. We use current->end_text to
- * current->brk to pick up all of the user variables, plus any memory
- * that may have been sbrk'ed. No attempt is made to determine if a
- * page is demand-zero or if a page is totally unused, we just cover
- * the entire range. All of the addresses are rounded in such a way
- * that an integral number of pages is written.
- * stack: We need the stack information in order to get a meaningful
- * backtrace. We need to write the data from usp to
- * current->start_stack, so we round each of these in order to be able
- * to write an integer number of pages.
- */
-struct user {
- struct pt_regs regs; /* entire machine state */
- size_t u_tsize; /* text size (pages) */
- size_t u_dsize; /* data size (pages) */
- size_t u_ssize; /* stack size (pages) */
- unsigned long start_code; /* text starting address */
- unsigned long start_data; /* data starting address */
- unsigned long start_stack; /* stack starting address */
- long int signal; /* signal causing core dump */
- unsigned long u_ar0; /* help gdb find registers */
- unsigned long magic; /* identifies a core file */
- char u_comm[32]; /* user command name */
-};
-
-#define NBPG PAGE_SIZE
-#define UPAGES 1
-#define HOST_TEXT_START_ADDR (u.start_code)
-#define HOST_DATA_START_ADDR (u.start_data)
-#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
-
-#endif /* __V850_USER_H__ */
+++ /dev/null
-/*
- * include/asm-v850/v850e.h -- V850E CPU
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_V850E_H__
-#define __V850_V850E_H__
-
-#include <asm/v850e_intc.h>
-
-#define CPU_ARCH "v850e"
-
-#endif /* __V850_V850E_H__ */
+++ /dev/null
-/*
- * include/asm-v850/v850e2.h -- Machine-dependent defs for V850E2 CPUs
- *
- * Copyright (C) 2002,03 NEC Electronics Corporation
- * Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_V850E2_H__
-#define __V850_V850E2_H__
-
-#include <asm/v850e_intc.h> /* v850e-style interrupt system. */
-
-
-#define CPU_ARCH "v850e2"
-
-
-/* Control registers. */
-
-/* Chip area select control */
-#define V850E2_CSC_ADDR(n) (0xFFFFF060 + (n) * 2)
-#define V850E2_CSC(n) (*(volatile u16 *)V850E2_CSC_ADDR(n))
-/* I/O area select control */
-#define V850E2_BPC_ADDR 0xFFFFF064
-#define V850E2_BPC (*(volatile u16 *)V850E2_BPC_ADDR)
-/* Bus size configuration */
-#define V850E2_BSC_ADDR 0xFFFFF066
-#define V850E2_BSC (*(volatile u16 *)V850E2_BSC_ADDR)
-/* Endian configuration */
-#define V850E2_BEC_ADDR 0xFFFFF068
-#define V850E2_BEC (*(volatile u16 *)V850E2_BEC_ADDR)
-/* Cache configuration */
-#define V850E2_BHC_ADDR 0xFFFFF06A
-#define V850E2_BHC (*(volatile u16 *)V850E2_BHC_ADDR)
-/* NPB strobe-wait configuration */
-#define V850E2_VSWC_ADDR 0xFFFFF06E
-#define V850E2_VSWC (*(volatile u16 *)V850E2_VSWC_ADDR)
-/* Bus cycle type */
-#define V850E2_BCT_ADDR(n) (0xFFFFF480 + (n) * 2)
-#define V850E2_BCT(n) (*(volatile u16 *)V850E2_BCT_ADDR(n))
-/* Data wait control */
-#define V850E2_DWC_ADDR(n) (0xFFFFF484 + (n) * 2)
-#define V850E2_DWC(n) (*(volatile u16 *)V850E2_DWC_ADDR(n))
-/* Bus cycle control */
-#define V850E2_BCC_ADDR 0xFFFFF488
-#define V850E2_BCC (*(volatile u16 *)V850E2_BCC_ADDR)
-/* Address wait control */
-#define V850E2_ASC_ADDR 0xFFFFF48A
-#define V850E2_ASC (*(volatile u16 *)V850E2_ASC_ADDR)
-/* Local bus sizing control */
-#define V850E2_LBS_ADDR 0xFFFFF48E
-#define V850E2_LBS (*(volatile u16 *)V850E2_LBS_ADDR)
-/* Line buffer control */
-#define V850E2_LBC_ADDR(n) (0xFFFFF490 + (n) * 2)
-#define V850E2_LBC(n) (*(volatile u16 *)V850E2_LBC_ADDR(n))
-/* SDRAM configuration */
-#define V850E2_SCR_ADDR(n) (0xFFFFF4A0 + (n) * 4)
-#define V850E2_SCR(n) (*(volatile u16 *)V850E2_SCR_ADDR(n))
-/* SDRAM refresh cycle control */
-#define V850E2_RFS_ADDR(n) (0xFFFFF4A2 + (n) * 4)
-#define V850E2_RFS(n) (*(volatile u16 *)V850E2_RFS_ADDR(n))
-
-
-#endif /* __V850_V850E2_H__ */
+++ /dev/null
-/*
- * include/asm-v850/v850e2_cache_cache.h -- Cache control for V850E2
- * cache memories
- *
- * Copyright (C) 2003,05 NEC Electronics Corporation
- * Copyright (C) 2003,05 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_V850E2_CACHE_H__
-#define __V850_V850E2_CACHE_H__
-
-#include <asm/types.h>
-
-
-/* Cache control registers. */
-
-/* Bus Transaction Control */
-#define V850E2_CACHE_BTSC_ADDR 0xFFFFF070
-#define V850E2_CACHE_BTSC (*(volatile u16 *)V850E2_CACHE_BTSC_ADDR)
-#define V850E2_CACHE_BTSC_ICM 0x0001 /* icache enable */
-#define V850E2_CACHE_BTSC_DCM0 0x0004 /* dcache enable, bit 0 */
-#define V850E2_CACHE_BTSC_DCM1 0x0008 /* dcache enable, bit 1 */
-#define V850E2_CACHE_BTSC_DCM_WT /* write-through */ \
- V850E2_CACHE_BTSC_DCM0
-#ifdef CONFIG_V850E2_V850E2S
-# define V850E2_CACHE_BTSC_DCM_WB_NO_ALLOC /* write-back, non-alloc */ \
- V850E2_CACHE_BTSC_DCM1
-# define V850E2_CACHE_BTSC_DCM_WB_ALLOC /* write-back, non-alloc */ \
- (V850E2_CACHE_BTSC_DCM1 | V850E2_CACHE_BTSC_DCM0)
-# define V850E2_CACHE_BTSC_ISEQ 0x0010 /* icache `address sequence mode' */
-# define V850E2_CACHE_BTSC_DSEQ 0x0020 /* dcache `address sequence mode' */
-# define V850E2_CACHE_BTSC_IRFC 0x0030
-# define V850E2_CACHE_BTSC_ILCD 0x4000
-# define V850E2_CACHE_BTSC_VABE 0x8000
-#endif /* CONFIG_V850E2_V850E2S */
-
-/* Cache operation start address register (low-bits). */
-#define V850E2_CACHE_CADL_ADDR 0xFFFFF074
-#define V850E2_CACHE_CADL (*(volatile u16 *)V850E2_CACHE_CADL_ADDR)
-/* Cache operation start address register (high-bits). */
-#define V850E2_CACHE_CADH_ADDR 0xFFFFF076
-#define V850E2_CACHE_CADH (*(volatile u16 *)V850E2_CACHE_CADH_ADDR)
-/* Cache operation count register. */
-#define V850E2_CACHE_CCNT_ADDR 0xFFFFF078
-#define V850E2_CACHE_CCNT (*(volatile u16 *)V850E2_CACHE_CCNT_ADDR)
-/* Cache operation specification register. */
-#define V850E2_CACHE_COPR_ADDR 0xFFFFF07A
-#define V850E2_CACHE_COPR (*(volatile u16 *)V850E2_CACHE_COPR_ADDR)
-#define V850E2_CACHE_COPR_STRT 0x0001 /* start cache operation */
-#define V850E2_CACHE_COPR_LBSL 0x0100 /* 0 = icache, 1 = dcache */
-#define V850E2_CACHE_COPR_WSLE 0x0200 /* operate on cache way */
-#define V850E2_CACHE_COPR_WSL(way) ((way) * 0x0400) /* way select */
-#define V850E2_CACHE_COPR_CFC(op) ((op) * 0x1000) /* cache function code */
-
-
-/* Size of a cache line in bytes. */
-#define V850E2_CACHE_LINE_SIZE_BITS 4
-#define V850E2_CACHE_LINE_SIZE (1 << V850E2_CACHE_LINE_SIZE_BITS)
-
-/* The size of each cache `way' in lines. */
-#define V850E2_CACHE_WAY_SIZE 256
-
-
-/* For <asm/cache.h> */
-#define L1_CACHE_BYTES V850E2_CACHE_LINE_SIZE
-#define L1_CACHE_SHIFT V850E2_CACHE_LINE_SIZE_BITS
-
-
-#endif /* __V850_V850E2_CACHE_H__ */
+++ /dev/null
-/*
- * include/asm-v850/v850e_cache.h -- Cache control for V850E cache memories
- *
- * Copyright (C) 2001,03 NEC Electronics Corporation
- * Copyright (C) 2001,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-/* This file implements cache control for the rather simple cache used on
- some V850E CPUs, specifically the NB85E/TEG CPU-core and the V850E/ME2
- CPU. V850E2 processors have their own (better) cache
- implementation. */
-
-#ifndef __V850_V850E_CACHE_H__
-#define __V850_V850E_CACHE_H__
-
-#include <asm/types.h>
-
-
-/* Cache control registers. */
-#define V850E_CACHE_BHC_ADDR 0xFFFFF06A
-#define V850E_CACHE_BHC (*(volatile u16 *)V850E_CACHE_BHC_ADDR)
-#define V850E_CACHE_ICC_ADDR 0xFFFFF070
-#define V850E_CACHE_ICC (*(volatile u16 *)V850E_CACHE_ICC_ADDR)
-#define V850E_CACHE_ISI_ADDR 0xFFFFF072
-#define V850E_CACHE_ISI (*(volatile u16 *)V850E_CACHE_ISI_ADDR)
-#define V850E_CACHE_DCC_ADDR 0xFFFFF078
-#define V850E_CACHE_DCC (*(volatile u16 *)V850E_CACHE_DCC_ADDR)
-
-/* Size of a cache line in bytes. */
-#define V850E_CACHE_LINE_SIZE 16
-
-/* For <asm/cache.h> */
-#define L1_CACHE_BYTES V850E_CACHE_LINE_SIZE
-
-
-#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
-/* Set caching params via the BHC, ICC, and DCC registers. */
-void v850e_cache_enable (u16 bhc, u16 icc, u16 dcc);
-#endif /* __KERNEL__ && !__ASSEMBLY__ */
-
-
-#endif /* __V850_V850E_CACHE_H__ */
+++ /dev/null
-/*
- * include/asm-v850/v850e_intc.h -- V850E CPU interrupt controller (INTC)
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_V850E_INTC_H__
-#define __V850_V850E_INTC_H__
-
-
-/* There are 4 16-bit `Interrupt Mask Registers' located contiguously
- starting from this base. Each interrupt uses a single bit to
- indicated enabled/disabled status. */
-#define V850E_INTC_IMR_BASE_ADDR 0xFFFFF100
-#define V850E_INTC_IMR_ADDR(irq) (V850E_INTC_IMR_BASE_ADDR + ((irq) >> 3))
-#define V850E_INTC_IMR_BIT(irq) ((irq) & 0x7)
-
-/* Each maskable interrupt has a single-byte control register at this
- address. */
-#define V850E_INTC_IC_BASE_ADDR 0xFFFFF110
-#define V850E_INTC_IC_ADDR(irq) (V850E_INTC_IC_BASE_ADDR + ((irq) << 1))
-#define V850E_INTC_IC(irq) (*(volatile u8 *)V850E_INTC_IC_ADDR(irq))
-/* Encode priority PR for storing in an interrupt control register. */
-#define V850E_INTC_IC_PR(pr) (pr)
-/* Interrupt disable bit in an interrupt control register. */
-#define V850E_INTC_IC_MK_BIT 6
-#define V850E_INTC_IC_MK (1 << V850E_INTC_IC_MK_BIT)
-/* Interrupt pending flag in an interrupt control register. */
-#define V850E_INTC_IC_IF_BIT 7
-#define V850E_INTC_IC_IF (1 << V850E_INTC_IC_IF_BIT)
-
-/* The ISPR (In-service priority register) contains one bit for each interrupt
- priority level, which is set to one when that level is currently being
- serviced (and thus blocking any interrupts of equal or lesser level). */
-#define V850E_INTC_ISPR_ADDR 0xFFFFF1FA
-#define V850E_INTC_ISPR (*(volatile u8 *)V850E_INTC_ISPR_ADDR)
-
-
-#ifndef __ASSEMBLY__
-
-/* Enable interrupt handling for interrupt IRQ. */
-static inline void v850e_intc_enable_irq (unsigned irq)
-{
- __asm__ __volatile__ ("clr1 %0, [%1]"
- :: "r" (V850E_INTC_IMR_BIT (irq)),
- "r" (V850E_INTC_IMR_ADDR (irq))
- : "memory");
-}
-
-/* Disable interrupt handling for interrupt IRQ. Note that any
- interrupts received while disabled will be delivered once the
- interrupt is enabled again, unless they are explicitly cleared using
- `v850e_intc_clear_pending_irq'. */
-static inline void v850e_intc_disable_irq (unsigned irq)
-{
- __asm__ __volatile__ ("set1 %0, [%1]"
- :: "r" (V850E_INTC_IMR_BIT (irq)),
- "r" (V850E_INTC_IMR_ADDR (irq))
- : "memory");
-}
-
-/* Return true if interrupt handling for interrupt IRQ is enabled. */
-static inline int v850e_intc_irq_enabled (unsigned irq)
-{
- int rval;
- __asm__ __volatile__ ("tst1 %1, [%2]; setf z, %0"
- : "=r" (rval)
- : "r" (V850E_INTC_IMR_BIT (irq)),
- "r" (V850E_INTC_IMR_ADDR (irq)));
- return rval;
-}
-
-/* Disable irqs from 0 until LIMIT. LIMIT must be a multiple of 8. */
-static inline void _v850e_intc_disable_irqs (unsigned limit)
-{
- unsigned long addr;
- for (addr = V850E_INTC_IMR_BASE_ADDR; limit >= 8; addr++, limit -= 8)
- *(char *)addr = 0xFF;
-}
-
-/* Disable all irqs. This is purposely a macro, because NUM_MACH_IRQS
- will be only be defined later. */
-#define v850e_intc_disable_irqs() _v850e_intc_disable_irqs (NUM_MACH_IRQS)
-
-/* Clear any pending interrupts for IRQ. */
-static inline void v850e_intc_clear_pending_irq (unsigned irq)
-{
- __asm__ __volatile__ ("clr1 %0, 0[%1]"
- :: "i" (V850E_INTC_IC_IF_BIT),
- "r" (V850E_INTC_IC_ADDR (irq))
- : "memory");
-}
-
-/* Return true if interrupt IRQ is pending (but disabled). */
-static inline int v850e_intc_irq_pending (unsigned irq)
-{
- int rval;
- __asm__ __volatile__ ("tst1 %1, 0[%2]; setf nz, %0"
- : "=r" (rval)
- : "i" (V850E_INTC_IC_IF_BIT),
- "r" (V850E_INTC_IC_ADDR (irq)));
- return rval;
-}
-
-
-struct v850e_intc_irq_init {
- const char *name; /* name of interrupt type */
-
- /* Range of kernel irq numbers for this type:
- BASE, BASE+INTERVAL, ..., BASE+INTERVAL*NUM */
- unsigned base, num, interval;
-
- unsigned priority; /* interrupt priority to assign */
-};
-struct hw_interrupt_type; /* fwd decl */
-
-/* Initialize HW_IRQ_TYPES for INTC-controlled irqs described in array
- INITS (which is terminated by an entry with the name field == 0). */
-extern void v850e_intc_init_irq_types (struct v850e_intc_irq_init *inits,
- struct hw_interrupt_type *hw_irq_types);
-
-
-#endif /* !__ASSEMBLY__ */
-
-
-#endif /* __V850_V850E_INTC_H__ */
+++ /dev/null
-/*
- * include/asm-v850/v850e_timer_c.h -- `Timer C' component often used
- * with the V850E cpu core
- *
- * Copyright (C) 2001,03 NEC Electronics Corporation
- * Copyright (C) 2001,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-/* NOTE: this include file currently contains only enough to allow us to
- use timer C as an interrupt pass-through. */
-
-#ifndef __V850_V850E_TIMER_C_H__
-#define __V850_V850E_TIMER_C_H__
-
-#include <asm/types.h>
-#include <asm/machdep.h> /* Pick up chip-specific defs. */
-
-
-/* Timer C (16-bit interval timers). */
-
-/* Control register 0 for timer C. */
-#define V850E_TIMER_C_TMCC0_ADDR(n) (V850E_TIMER_C_BASE_ADDR + 0x6 + 0x10 *(n))
-#define V850E_TIMER_C_TMCC0(n) (*(volatile u8 *)V850E_TIMER_C_TMCC0_ADDR(n))
-#define V850E_TIMER_C_TMCC0_CAE 0x01 /* clock action enable */
-#define V850E_TIMER_C_TMCC0_CE 0x02 /* count enable */
-/* ... */
-
-/* Control register 1 for timer C. */
-#define V850E_TIMER_C_TMCC1_ADDR(n) (V850E_TIMER_C_BASE_ADDR + 0x8 + 0x10 *(n))
-#define V850E_TIMER_C_TMCC1(n) (*(volatile u8 *)V850E_TIMER_C_TMCC1_ADDR(n))
-#define V850E_TIMER_C_TMCC1_CMS0 0x01 /* capture/compare mode select (ccc0) */
-#define V850E_TIMER_C_TMCC1_CMS1 0x02 /* capture/compare mode select (ccc1) */
-/* ... */
-
-/* Interrupt edge-sensitivity control for timer C. */
-#define V850E_TIMER_C_SESC_ADDR(n) (V850E_TIMER_C_BASE_ADDR + 0x9 + 0x10 *(n))
-#define V850E_TIMER_C_SESC(n) (*(volatile u8 *)V850E_TIMER_C_SESC_ADDR(n))
-
-/* ...etc... */
-
-
-#endif /* __V850_V850E_TIMER_C_H__ */
+++ /dev/null
-/*
- * include/asm-v850/v850e_timer_d.h -- `Timer D' component often used
- * with the V850E cpu core
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_V850E_TIMER_D_H__
-#define __V850_V850E_TIMER_D_H__
-
-#include <asm/types.h>
-#include <asm/machdep.h> /* Pick up chip-specific defs. */
-
-
-/* Timer D (16-bit interval timers). */
-
-/* Count registers for timer D. */
-#define V850E_TIMER_D_TMD_ADDR(n) (V850E_TIMER_D_TMD_BASE_ADDR + 0x10 * (n))
-#define V850E_TIMER_D_TMD(n) (*(volatile u16 *)V850E_TIMER_D_TMD_ADDR(n))
-
-/* Count compare registers for timer D. */
-#define V850E_TIMER_D_CMD_ADDR(n) (V850E_TIMER_D_CMD_BASE_ADDR + 0x10 * (n))
-#define V850E_TIMER_D_CMD(n) (*(volatile u16 *)V850E_TIMER_D_CMD_ADDR(n))
-
-/* Control registers for timer D. */
-#define V850E_TIMER_D_TMCD_ADDR(n) (V850E_TIMER_D_TMCD_BASE_ADDR + 0x10 * (n))
-#define V850E_TIMER_D_TMCD(n) (*(volatile u8 *)V850E_TIMER_D_TMCD_ADDR(n))
-/* Control bits for timer D. */
-#define V850E_TIMER_D_TMCD_CE 0x2 /* count enable */
-#define V850E_TIMER_D_TMCD_CAE 0x1 /* clock action enable */
-/* Clock divider setting (log2). */
-#define V850E_TIMER_D_TMCD_CS(divlog2) (((divlog2) - V850E_TIMER_D_TMCD_CS_MIN) << 4)
-/* Minimum clock divider setting (log2). */
-#ifndef V850E_TIMER_D_TMCD_CS_MIN /* Can be overridden by mach-specific hdrs */
-#define V850E_TIMER_D_TMCD_CS_MIN 2 /* Default is correct for the v850e/ma1 */
-#endif
-/* Maximum clock divider setting (log2). */
-#define V850E_TIMER_D_TMCD_CS_MAX (V850E_TIMER_D_TMCD_CS_MIN + 7)
-
-/* Return the clock-divider (log2) of timer D unit N. */
-#define V850E_TIMER_D_DIVLOG2(n) \
- (((V850E_TIMER_D_TMCD(n) >> 4) & 0x7) + V850E_TIMER_D_TMCD_CS_MIN)
-
-
-#ifndef __ASSEMBLY__
-
-/* Start interval timer TIMER (0-3). The timer will issue the
- corresponding INTCMD interrupt RATE times per second. This function
- does not enable the interrupt. */
-extern void v850e_timer_d_configure (unsigned timer, unsigned rate);
-
-#endif /* !__ASSEMBLY__ */
-
-
-#endif /* __V850_V850E_TIMER_D_H__ */
+++ /dev/null
-/*
- * include/asm-v850/v850e_uart.h -- common V850E on-chip UART driver
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-/* There's not actually a single UART implementation used by V850E CPUs,
- but rather a series of implementations that are all `close' to one
- another. This file corresponds to the single driver which handles all
- of them. */
-
-#ifndef __V850_V850E_UART_H__
-#define __V850_V850E_UART_H__
-
-#include <linux/termios.h>
-
-#include <asm/v850e_utils.h>
-#include <asm/types.h>
-#include <asm/machdep.h> /* Pick up chip-specific defs. */
-
-
-/* Include model-specific definitions. */
-#ifdef CONFIG_V850E_UART
-# ifdef CONFIG_V850E_UARTB
-# include <asm-v850/v850e_uartb.h>
-# else
-# include <asm-v850/v850e_uarta.h> /* original V850E UART */
-# endif
-#endif
-
-
-/* Optional capabilities some hardware provides. */
-
-/* This UART doesn't implement RTS/CTS by default, but some platforms
- implement them externally, so check to see if <asm/machdep.h> defined
- anything. */
-#ifdef V850E_UART_CTS
-#define v850e_uart_cts(n) V850E_UART_CTS(n)
-#else
-#define v850e_uart_cts(n) (1)
-#endif
-
-/* Do the same for RTS. */
-#ifdef V850E_UART_SET_RTS
-#define v850e_uart_set_rts(n,v) V850E_UART_SET_RTS(n,v)
-#else
-#define v850e_uart_set_rts(n,v) ((void)0)
-#endif
-
-
-/* This is the serial channel to use for the boot console (if desired). */
-#ifndef V850E_UART_CONSOLE_CHANNEL
-# define V850E_UART_CONSOLE_CHANNEL 0
-#endif
-
-
-#ifndef __ASSEMBLY__
-
-/* Setup a console using channel 0 of the builtin uart. */
-extern void v850e_uart_cons_init (unsigned chan);
-
-/* Configure and turn on uart channel CHAN, using the termios `control
- modes' bits in CFLAGS, and a baud-rate of BAUD. */
-void v850e_uart_configure (unsigned chan, unsigned cflags, unsigned baud);
-
-#endif /* !__ASSEMBLY__ */
-
-
-#endif /* __V850_V850E_UART_H__ */
+++ /dev/null
-/*
- * include/asm-v850/v850e_uarta.h -- original V850E on-chip UART
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-/* This is the original V850E UART implementation is called just `UART' in
- the docs, but we name this header file <asm/v850e_uarta.h> because the
- name <asm/v850e_uart.h> is used for the common driver that handles both
- `UART' and `UARTB' implementations. */
-
-#ifndef __V850_V850E_UARTA_H__
-#define __V850_V850E_UARTA_H__
-
-\f
-/* Raw hardware interface. */
-
-/* The base address of the UART control registers for channel N.
- The default is the address used on the V850E/MA1. */
-#ifndef V850E_UART_BASE_ADDR
-#define V850E_UART_BASE_ADDR(n) (0xFFFFFA00 + 0x10 * (n))
-#endif
-
-/* Addresses of specific UART control registers for channel N.
- The defaults are the addresses used on the V850E/MA1; if a platform
- wants to redefine any of these, it must redefine them all. */
-#ifndef V850E_UART_ASIM_ADDR
-#define V850E_UART_ASIM_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x0)
-#define V850E_UART_RXB_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x2)
-#define V850E_UART_ASIS_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x3)
-#define V850E_UART_TXB_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x4)
-#define V850E_UART_ASIF_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x5)
-#define V850E_UART_CKSR_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x6)
-#define V850E_UART_BRGC_ADDR(n) (V850E_UART_BASE_ADDR(n) + 0x7)
-#endif
-
-/* UART config registers. */
-#define V850E_UART_ASIM(n) (*(volatile u8 *)V850E_UART_ASIM_ADDR(n))
-/* Control bits for config registers. */
-#define V850E_UART_ASIM_CAE 0x80 /* clock enable */
-#define V850E_UART_ASIM_TXE 0x40 /* transmit enable */
-#define V850E_UART_ASIM_RXE 0x20 /* receive enable */
-#define V850E_UART_ASIM_PS_MASK 0x18 /* mask covering parity-select bits */
-#define V850E_UART_ASIM_PS_NONE 0x00 /* no parity */
-#define V850E_UART_ASIM_PS_ZERO 0x08 /* zero parity */
-#define V850E_UART_ASIM_PS_ODD 0x10 /* odd parity */
-#define V850E_UART_ASIM_PS_EVEN 0x18 /* even parity */
-#define V850E_UART_ASIM_CL_8 0x04 /* char len is 8 bits (otherwise, 7) */
-#define V850E_UART_ASIM_SL_2 0x02 /* 2 stop bits (otherwise, 1) */
-#define V850E_UART_ASIM_ISRM 0x01 /* generate INTSR interrupt on errors
- (otherwise, generate INTSER) */
-
-/* UART serial interface status registers. */
-#define V850E_UART_ASIS(n) (*(volatile u8 *)V850E_UART_ASIS_ADDR(n))
-/* Control bits for status registers. */
-#define V850E_UART_ASIS_PE 0x04 /* parity error */
-#define V850E_UART_ASIS_FE 0x02 /* framing error */
-#define V850E_UART_ASIS_OVE 0x01 /* overrun error */
-
-/* UART serial interface transmission status registers. */
-#define V850E_UART_ASIF(n) (*(volatile u8 *)V850E_UART_ASIF_ADDR(n))
-#define V850E_UART_ASIF_TXBF 0x02 /* transmit buffer flag (data in TXB) */
-#define V850E_UART_ASIF_TXSF 0x01 /* transmit shift flag (sending data) */
-
-/* UART receive buffer register. */
-#define V850E_UART_RXB(n) (*(volatile u8 *)V850E_UART_RXB_ADDR(n))
-
-/* UART transmit buffer register. */
-#define V850E_UART_TXB(n) (*(volatile u8 *)V850E_UART_TXB_ADDR(n))
-
-/* UART baud-rate generator control registers. */
-#define V850E_UART_CKSR(n) (*(volatile u8 *)V850E_UART_CKSR_ADDR(n))
-#define V850E_UART_CKSR_MAX 11
-#define V850E_UART_BRGC(n) (*(volatile u8 *)V850E_UART_BRGC_ADDR(n))
-#define V850E_UART_BRGC_MIN 8
-
-
-#ifndef V850E_UART_CKSR_MAX_FREQ
-#define V850E_UART_CKSR_MAX_FREQ (25*1000*1000)
-#endif
-
-/* Calculate the minimum value for CKSR on this processor. */
-static inline unsigned v850e_uart_cksr_min (void)
-{
- int min = 0;
- unsigned freq = V850E_UART_BASE_FREQ;
- while (freq > V850E_UART_CKSR_MAX_FREQ) {
- freq >>= 1;
- min++;
- }
- return min;
-}
-
-\f
-/* Slightly abstract interface used by driver. */
-
-
-/* Interrupts used by the UART. */
-
-/* Received when the most recently transmitted character has been sent. */
-#define V850E_UART_TX_IRQ(chan) IRQ_INTST (chan)
-/* Received when a new character has been received. */
-#define V850E_UART_RX_IRQ(chan) IRQ_INTSR (chan)
-
-
-/* UART clock generator interface. */
-
-/* This type encapsulates a particular uart frequency. */
-typedef struct {
- unsigned clk_divlog2;
- unsigned brgen_count;
-} v850e_uart_speed_t;
-
-/* Calculate a uart speed from BAUD for this uart. */
-static inline v850e_uart_speed_t v850e_uart_calc_speed (unsigned baud)
-{
- v850e_uart_speed_t speed;
-
- /* Calculate the log2 clock divider and baud-rate counter values
- (note that the UART divides the resulting clock by 2, so
- multiply BAUD by 2 here to compensate). */
- calc_counter_params (V850E_UART_BASE_FREQ, baud * 2,
- v850e_uart_cksr_min(),
- V850E_UART_CKSR_MAX, 8/*bits*/,
- &speed.clk_divlog2, &speed.brgen_count);
-
- return speed;
-}
-
-/* Return the current speed of uart channel CHAN. */
-static inline v850e_uart_speed_t v850e_uart_speed (unsigned chan)
-{
- v850e_uart_speed_t speed;
- speed.clk_divlog2 = V850E_UART_CKSR (chan);
- speed.brgen_count = V850E_UART_BRGC (chan);
- return speed;
-}
-
-/* Set the current speed of uart channel CHAN. */
-static inline void v850e_uart_set_speed(unsigned chan,v850e_uart_speed_t speed)
-{
- V850E_UART_CKSR (chan) = speed.clk_divlog2;
- V850E_UART_BRGC (chan) = speed.brgen_count;
-}
-
-static inline int
-v850e_uart_speed_eq (v850e_uart_speed_t speed1, v850e_uart_speed_t speed2)
-{
- return speed1.clk_divlog2 == speed2.clk_divlog2
- && speed1.brgen_count == speed2.brgen_count;
-}
-
-/* Minimum baud rate possible. */
-#define v850e_uart_min_baud() \
- ((V850E_UART_BASE_FREQ >> V850E_UART_CKSR_MAX) / (2 * 255) + 1)
-
-/* Maximum baud rate possible. The error is quite high at max, though. */
-#define v850e_uart_max_baud() \
- ((V850E_UART_BASE_FREQ >> v850e_uart_cksr_min()) / (2 *V850E_UART_BRGC_MIN))
-
-/* The `maximum' clock rate the uart can used, which is wanted (though not
- really used in any useful way) by the serial framework. */
-#define v850e_uart_max_clock() \
- ((V850E_UART_BASE_FREQ >> v850e_uart_cksr_min()) / 2)
-
-
-/* UART configuration interface. */
-
-/* Type of the uart config register; must be a scalar. */
-typedef u16 v850e_uart_config_t;
-
-/* The uart hardware config register for channel CHAN. */
-#define V850E_UART_CONFIG(chan) V850E_UART_ASIM (chan)
-
-/* This config bit set if the uart is enabled. */
-#define V850E_UART_CONFIG_ENABLED V850E_UART_ASIM_CAE
-/* If the uart _isn't_ enabled, store this value to it to do so. */
-#define V850E_UART_CONFIG_INIT V850E_UART_ASIM_CAE
-/* Store this config value to disable the uart channel completely. */
-#define V850E_UART_CONFIG_FINI 0
-
-/* Setting/clearing these bits enable/disable TX/RX, respectively (but
- otherwise generally leave things running). */
-#define V850E_UART_CONFIG_RX_ENABLE V850E_UART_ASIM_RXE
-#define V850E_UART_CONFIG_TX_ENABLE V850E_UART_ASIM_TXE
-
-/* These masks define which config bits affect TX/RX modes, respectively. */
-#define V850E_UART_CONFIG_RX_BITS \
- (V850E_UART_ASIM_PS_MASK | V850E_UART_ASIM_CL_8 | V850E_UART_ASIM_ISRM)
-#define V850E_UART_CONFIG_TX_BITS \
- (V850E_UART_ASIM_PS_MASK | V850E_UART_ASIM_CL_8 | V850E_UART_ASIM_SL_2)
-
-static inline v850e_uart_config_t v850e_uart_calc_config (unsigned cflags)
-{
- v850e_uart_config_t config = 0;
-
- /* Figure out new configuration of control register. */
- if (cflags & CSTOPB)
- /* Number of stop bits, 1 or 2. */
- config |= V850E_UART_ASIM_SL_2;
- if ((cflags & CSIZE) == CS8)
- /* Number of data bits, 7 or 8. */
- config |= V850E_UART_ASIM_CL_8;
- if (! (cflags & PARENB))
- /* No parity check/generation. */
- config |= V850E_UART_ASIM_PS_NONE;
- else if (cflags & PARODD)
- /* Odd parity check/generation. */
- config |= V850E_UART_ASIM_PS_ODD;
- else
- /* Even parity check/generation. */
- config |= V850E_UART_ASIM_PS_EVEN;
- if (cflags & CREAD)
- /* Reading enabled. */
- config |= V850E_UART_ASIM_RXE;
-
- config |= V850E_UART_ASIM_CAE;
- config |= V850E_UART_ASIM_TXE; /* Writing is always enabled. */
- config |= V850E_UART_ASIM_ISRM; /* Errors generate a read-irq. */
-
- return config;
-}
-
-/* This should delay as long as necessary for a recently written config
- setting to settle, before we turn the uart back on. */
-static inline void
-v850e_uart_config_delay (v850e_uart_config_t config, v850e_uart_speed_t speed)
-{
- /* The UART may not be reset properly unless we wait at least 2
- `basic-clocks' until turning on the TXE/RXE bits again.
- A `basic clock' is the clock used by the baud-rate generator,
- i.e., the cpu clock divided by the 2^new_clk_divlog2.
- The loop takes 2 insns, so loop CYCLES / 2 times. */
- register unsigned count = 1 << speed.clk_divlog2;
- while (--count != 0)
- /* nothing */;
-}
-
-
-/* RX/TX interface. */
-
-/* Return true if all characters awaiting transmission on uart channel N
- have been transmitted. */
-#define v850e_uart_xmit_done(n) \
- (! (V850E_UART_ASIF(n) & V850E_UART_ASIF_TXBF))
-/* Wait for this to be true. */
-#define v850e_uart_wait_for_xmit_done(n) \
- do { } while (! v850e_uart_xmit_done (n))
-
-/* Return true if uart channel N is ready to transmit a character. */
-#define v850e_uart_xmit_ok(n) \
- (v850e_uart_xmit_done(n) && v850e_uart_cts(n))
-/* Wait for this to be true. */
-#define v850e_uart_wait_for_xmit_ok(n) \
- do { } while (! v850e_uart_xmit_ok (n))
-
-/* Write character CH to uart channel CHAN. */
-#define v850e_uart_putc(chan, ch) (V850E_UART_TXB(chan) = (ch))
-
-/* Return latest character read on channel CHAN. */
-#define v850e_uart_getc(chan) V850E_UART_RXB (chan)
-
-/* Return bit-mask of uart error status. */
-#define v850e_uart_err(chan) V850E_UART_ASIS (chan)
-/* Various error bits set in the error result. */
-#define V850E_UART_ERR_OVERRUN V850E_UART_ASIS_OVE
-#define V850E_UART_ERR_FRAME V850E_UART_ASIS_FE
-#define V850E_UART_ERR_PARITY V850E_UART_ASIS_PE
-
-
-#endif /* __V850_V850E_UARTA_H__ */
+++ /dev/null
-/*
- * include/asm-v850/v850e_uartb.h -- V850E on-chip `UARTB' UART
- *
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-/* The V850E UARTB is basically a superset of the original V850E UART, but
- even where it's the same, the names and details have changed a bit.
- It's similar enough to use the same driver (v850e_uart.c), but the
- details have been abstracted slightly to do so. */
-
-#ifndef __V850_V850E_UARTB_H__
-#define __V850_V850E_UARTB_H__
-
-\f
-/* Raw hardware interface. */
-
-#define V850E_UARTB_BASE_ADDR(n) (0xFFFFFA00 + 0x10 * (n))
-
-/* Addresses of specific UART control registers for channel N. */
-#define V850E_UARTB_CTL0_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0x0)
-#define V850E_UARTB_CTL2_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0x2)
-#define V850E_UARTB_STR_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0x4)
-#define V850E_UARTB_RX_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0x6)
-#define V850E_UARTB_RXAP_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0x6)
-#define V850E_UARTB_TX_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0x8)
-#define V850E_UARTB_FIC0_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0xA)
-#define V850E_UARTB_FIC1_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0xB)
-#define V850E_UARTB_FIC2_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0xC)
-#define V850E_UARTB_FIS0_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0xE)
-#define V850E_UARTB_FIS1_ADDR(n) (V850E_UARTB_BASE_ADDR(n) + 0xF)
-
-/* UARTB control register 0 (general config). */
-#define V850E_UARTB_CTL0(n) (*(volatile u8 *)V850E_UARTB_CTL0_ADDR(n))
-/* Control bits for config registers. */
-#define V850E_UARTB_CTL0_PWR 0x80 /* clock enable */
-#define V850E_UARTB_CTL0_TXE 0x40 /* transmit enable */
-#define V850E_UARTB_CTL0_RXE 0x20 /* receive enable */
-#define V850E_UARTB_CTL0_DIR 0x10 /* */
-#define V850E_UARTB_CTL0_PS1 0x08 /* parity */
-#define V850E_UARTB_CTL0_PS0 0x04 /* parity */
-#define V850E_UARTB_CTL0_CL 0x02 /* char len 1:8bit, 0:7bit */
-#define V850E_UARTB_CTL0_SL 0x01 /* stop bit 1:2bit, 0:1bit */
-#define V850E_UARTB_CTL0_PS_MASK 0x0C /* mask covering parity bits */
-#define V850E_UARTB_CTL0_PS_NONE 0x00 /* no parity */
-#define V850E_UARTB_CTL0_PS_ZERO 0x04 /* zero parity */
-#define V850E_UARTB_CTL0_PS_ODD 0x08 /* odd parity */
-#define V850E_UARTB_CTL0_PS_EVEN 0x0C /* even parity */
-#define V850E_UARTB_CTL0_CL_8 0x02 /* char len 1:8bit, 0:7bit */
-#define V850E_UARTB_CTL0_SL_2 0x01 /* stop bit 1:2bit, 0:1bit */
-
-/* UARTB control register 2 (clock divider). */
-#define V850E_UARTB_CTL2(n) (*(volatile u16 *)V850E_UARTB_CTL2_ADDR(n))
-#define V850E_UARTB_CTL2_MIN 4
-#define V850E_UARTB_CTL2_MAX 0xFFFF
-
-/* UARTB serial interface status register. */
-#define V850E_UARTB_STR(n) (*(volatile u8 *)V850E_UARTB_STR_ADDR(n))
-/* Control bits for status registers. */
-#define V850E_UARTB_STR_TSF 0x80 /* UBTX or FIFO exist data */
-#define V850E_UARTB_STR_OVF 0x08 /* overflow error */
-#define V850E_UARTB_STR_PE 0x04 /* parity error */
-#define V850E_UARTB_STR_FE 0x02 /* framing error */
-#define V850E_UARTB_STR_OVE 0x01 /* overrun error */
-
-/* UARTB receive data register. */
-#define V850E_UARTB_RX(n) (*(volatile u8 *)V850E_UARTB_RX_ADDR(n))
-#define V850E_UARTB_RXAP(n) (*(volatile u16 *)V850E_UARTB_RXAP_ADDR(n))
-/* Control bits for status registers. */
-#define V850E_UARTB_RXAP_PEF 0x0200 /* parity error */
-#define V850E_UARTB_RXAP_FEF 0x0100 /* framing error */
-
-/* UARTB transmit data register. */
-#define V850E_UARTB_TX(n) (*(volatile u8 *)V850E_UARTB_TX_ADDR(n))
-
-/* UARTB FIFO control register 0. */
-#define V850E_UARTB_FIC0(n) (*(volatile u8 *)V850E_UARTB_FIC0_ADDR(n))
-
-/* UARTB FIFO control register 1. */
-#define V850E_UARTB_FIC1(n) (*(volatile u8 *)V850E_UARTB_FIC1_ADDR(n))
-
-/* UARTB FIFO control register 2. */
-#define V850E_UARTB_FIC2(n) (*(volatile u16 *)V850E_UARTB_FIC2_ADDR(n))
-
-/* UARTB FIFO status register 0. */
-#define V850E_UARTB_FIS0(n) (*(volatile u8 *)V850E_UARTB_FIS0_ADDR(n))
-
-/* UARTB FIFO status register 1. */
-#define V850E_UARTB_FIS1(n) (*(volatile u8 *)V850E_UARTB_FIS1_ADDR(n))
-
-\f
-/* Slightly abstract interface used by driver. */
-
-
-/* Interrupts used by the UART. */
-
-/* Received when the most recently transmitted character has been sent. */
-#define V850E_UART_TX_IRQ(chan) IRQ_INTUBTIT (chan)
-/* Received when a new character has been received. */
-#define V850E_UART_RX_IRQ(chan) IRQ_INTUBTIR (chan)
-
-/* Use by serial driver for information purposes. */
-#define V850E_UART_BASE_ADDR(chan) V850E_UARTB_BASE_ADDR(chan)
-
-
-/* UART clock generator interface. */
-
-/* This type encapsulates a particular uart frequency. */
-typedef u16 v850e_uart_speed_t;
-
-/* Calculate a uart speed from BAUD for this uart. */
-static inline v850e_uart_speed_t v850e_uart_calc_speed (unsigned baud)
-{
- v850e_uart_speed_t speed;
-
- /*
- * V850E/ME2 UARTB baud rate is determined by the value of UBCTL2
- * fx = V850E_UARTB_BASE_FREQ = CPU_CLOCK_FREQ/4
- * baud = fx / 2*speed [ speed >= 4 ]
- */
- speed = V850E_UARTB_CTL2_MIN;
- while (((V850E_UARTB_BASE_FREQ / 2) / speed ) > baud)
- speed++;
-
- return speed;
-}
-
-/* Return the current speed of uart channel CHAN. */
-#define v850e_uart_speed(chan) V850E_UARTB_CTL2 (chan)
-
-/* Set the current speed of uart channel CHAN. */
-#define v850e_uart_set_speed(chan, speed) (V850E_UARTB_CTL2 (chan) = (speed))
-
-/* Return true if SPEED1 and SPEED2 are the same. */
-#define v850e_uart_speed_eq(speed1, speed2) ((speed1) == (speed2))
-
-/* Minimum baud rate possible. */
-#define v850e_uart_min_baud() \
- ((V850E_UARTB_BASE_FREQ / 2) / V850E_UARTB_CTL2_MAX)
-
-/* Maximum baud rate possible. The error is quite high at max, though. */
-#define v850e_uart_max_baud() \
- ((V850E_UARTB_BASE_FREQ / 2) / V850E_UARTB_CTL2_MIN)
-
-/* The `maximum' clock rate the uart can used, which is wanted (though not
- really used in any useful way) by the serial framework. */
-#define v850e_uart_max_clock() \
- (V850E_UARTB_BASE_FREQ / 2)
-
-
-/* UART configuration interface. */
-
-/* Type of the uart config register; must be a scalar. */
-typedef u16 v850e_uart_config_t;
-
-/* The uart hardware config register for channel CHAN. */
-#define V850E_UART_CONFIG(chan) V850E_UARTB_CTL0 (chan)
-
-/* This config bit set if the uart is enabled. */
-#define V850E_UART_CONFIG_ENABLED V850E_UARTB_CTL0_PWR
-/* If the uart _isn't_ enabled, store this value to it to do so. */
-#define V850E_UART_CONFIG_INIT V850E_UARTB_CTL0_PWR
-/* Store this config value to disable the uart channel completely. */
-#define V850E_UART_CONFIG_FINI 0
-
-/* Setting/clearing these bits enable/disable TX/RX, respectively (but
- otherwise generally leave things running). */
-#define V850E_UART_CONFIG_RX_ENABLE V850E_UARTB_CTL0_RXE
-#define V850E_UART_CONFIG_TX_ENABLE V850E_UARTB_CTL0_TXE
-
-/* These masks define which config bits affect TX/RX modes, respectively. */
-#define V850E_UART_CONFIG_RX_BITS \
- (V850E_UARTB_CTL0_PS_MASK | V850E_UARTB_CTL0_CL_8)
-#define V850E_UART_CONFIG_TX_BITS \
- (V850E_UARTB_CTL0_PS_MASK | V850E_UARTB_CTL0_CL_8 | V850E_UARTB_CTL0_SL_2)
-
-static inline v850e_uart_config_t v850e_uart_calc_config (unsigned cflags)
-{
- v850e_uart_config_t config = 0;
-
- /* Figure out new configuration of control register. */
- if (cflags & CSTOPB)
- /* Number of stop bits, 1 or 2. */
- config |= V850E_UARTB_CTL0_SL_2;
- if ((cflags & CSIZE) == CS8)
- /* Number of data bits, 7 or 8. */
- config |= V850E_UARTB_CTL0_CL_8;
- if (! (cflags & PARENB))
- /* No parity check/generation. */
- config |= V850E_UARTB_CTL0_PS_NONE;
- else if (cflags & PARODD)
- /* Odd parity check/generation. */
- config |= V850E_UARTB_CTL0_PS_ODD;
- else
- /* Even parity check/generation. */
- config |= V850E_UARTB_CTL0_PS_EVEN;
- if (cflags & CREAD)
- /* Reading enabled. */
- config |= V850E_UARTB_CTL0_RXE;
-
- config |= V850E_UARTB_CTL0_PWR;
- config |= V850E_UARTB_CTL0_TXE; /* Writing is always enabled. */
- config |= V850E_UARTB_CTL0_DIR; /* LSB first. */
-
- return config;
-}
-
-/* This should delay as long as necessary for a recently written config
- setting to settle, before we turn the uart back on. */
-static inline void
-v850e_uart_config_delay (v850e_uart_config_t config, v850e_uart_speed_t speed)
-{
- /* The UART may not be reset properly unless we wait at least 2
- `basic-clocks' until turning on the TXE/RXE bits again.
- A `basic clock' is the clock used by the baud-rate generator,
- i.e., the cpu clock divided by the 2^new_clk_divlog2.
- The loop takes 2 insns, so loop CYCLES / 2 times. */
- register unsigned count = 1 << speed;
- while (--count != 0)
- /* nothing */;
-}
-
-
-/* RX/TX interface. */
-
-/* Return true if all characters awaiting transmission on uart channel N
- have been transmitted. */
-#define v850e_uart_xmit_done(n) \
- (! (V850E_UARTB_STR(n) & V850E_UARTB_STR_TSF))
-/* Wait for this to be true. */
-#define v850e_uart_wait_for_xmit_done(n) \
- do { } while (! v850e_uart_xmit_done (n))
-
-/* Return true if uart channel N is ready to transmit a character. */
-#define v850e_uart_xmit_ok(n) \
- (v850e_uart_xmit_done(n) && v850e_uart_cts(n))
-/* Wait for this to be true. */
-#define v850e_uart_wait_for_xmit_ok(n) \
- do { } while (! v850e_uart_xmit_ok (n))
-
-/* Write character CH to uart channel CHAN. */
-#define v850e_uart_putc(chan, ch) (V850E_UARTB_TX(chan) = (ch))
-
-/* Return latest character read on channel CHAN. */
-#define v850e_uart_getc(chan) V850E_UARTB_RX (chan)
-
-/* Return bit-mask of uart error status. */
-#define v850e_uart_err(chan) V850E_UARTB_STR (chan)
-/* Various error bits set in the error result. */
-#define V850E_UART_ERR_OVERRUN V850E_UARTB_STR_OVE
-#define V850E_UART_ERR_FRAME V850E_UARTB_STR_FE
-#define V850E_UART_ERR_PARITY V850E_UARTB_STR_PE
-
-
-#endif /* __V850_V850E_UARTB_H__ */
+++ /dev/null
-/*
- * include/asm-v850/v850e_utils.h -- Utility functions associated with
- * V850E CPUs
- *
- * Copyright (C) 2001,03 NEC Electronics Corporation
- * Copyright (C) 2001,03 Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-#ifndef __V850_V850E_UTILS_H__
-#define __V850_V850E_UTILS_H__
-
-/* Calculate counter clock-divider and count values to attain the
- desired frequency RATE from the base frequency BASE_FREQ. The
- counter is expected to have a clock-divider, which can divide the
- system cpu clock by a power of two value from MIN_DIVLOG2 to
- MAX_DIV_LOG2, and a word-size of COUNTER_SIZE bits (the counter
- counts up and resets whenever it's equal to the compare register,
- generating an interrupt or whatever when it does so). The returned
- values are: *DIVLOG2 -- log2 of the desired clock divider and *COUNT
- -- the counter compare value to use. Returns true if it was possible
- to find a reasonable value, otherwise false (and the other return
- values will be set to be as good as possible). */
-extern int calc_counter_params (unsigned long base_freq,
- unsigned long rate,
- unsigned min_divlog2, unsigned max_divlog2,
- unsigned counter_size,
- unsigned *divlog2, unsigned *count);
-
-#endif /* __V850_V850E_UTILS_H__ */
* If the arch doesn't supply something else, assume that hugepage
* size aligned regions are ok without further preparation.
*/
-static inline int prepare_hugepage_range(unsigned long addr, unsigned long len)
+static inline int prepare_hugepage_range(struct file *file,
+ unsigned long addr, unsigned long len)
{
- if (len & ~HPAGE_MASK)
+ struct hstate *h = hstate_file(file);
+ if (len & ~huge_page_mask(h))
return -EINVAL;
- if (addr & ~HPAGE_MASK)
+ if (addr & ~huge_page_mask(h))
return -EINVAL;
return 0;
}
static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) {
}
-static inline void hugetlb_free_pgd_range(struct mmu_gather **tlb,
+static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
unsigned long addr, unsigned long end,
unsigned long floor,
unsigned long ceiling)
*/
extern void __iomem *ioremap_nocache(resource_size_t offset, unsigned long size);
extern void __iomem *ioremap_cache(resource_size_t offset, unsigned long size);
+extern void __iomem *ioremap_prot(resource_size_t offset, unsigned long size,
+ unsigned long prot_val);
/*
* The default ioremap() behavior is non-cached:
*/
extern void __iomem *ioremap_nocache(resource_size_t offset, unsigned long size);
extern void __iomem *ioremap_cache(resource_size_t offset, unsigned long size);
+extern void __iomem *ioremap_prot(resource_size_t offset, unsigned long size,
+ unsigned long prot_val);
/*
* The default ioremap() behavior is non-cached:
#define HPAGE_MASK (~(HPAGE_SIZE - 1))
#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
+#define HUGE_MAX_HSTATE 2
#ifndef __ASSEMBLY__
#include <linux/types.h>
+++ /dev/null
-#include <linux/semaphore.h>
#define __NR_fallocate 324
#define __NR_timerfd_settime 325
#define __NR_timerfd_gettime 326
+#define __NR_signalfd4 327
+#define __NR_eventfd2 328
+#define __NR_epoll_create1 329
+#define __NR_dup3 330
+#define __NR_pipe2 331
+#define __NR_inotify_init1 332
#ifdef __KERNEL__
__SYSCALL(__NR_timerfd_settime, sys_timerfd_settime)
#define __NR_timerfd_gettime 287
__SYSCALL(__NR_timerfd_gettime, sys_timerfd_gettime)
+#define __NR_paccept 288
+__SYSCALL(__NR_paccept, sys_paccept)
+#define __NR_signalfd4 289
+__SYSCALL(__NR_signalfd4, sys_signalfd4)
+#define __NR_eventfd2 290
+__SYSCALL(__NR_eventfd2, sys_eventfd2)
+#define __NR_epoll_create1 291
+__SYSCALL(__NR_epoll_create1, sys_epoll_create1)
+#define __NR_dup3 292
+__SYSCALL(__NR_dup3, sys_dup3)
+#define __NR_pipe2 293
+__SYSCALL(__NR_pipe2, sys_pipe2)
+#define __NR_inotify_init1 294
+__SYSCALL(__NR_inotify_init1, sys_inotify_init1)
#ifndef __NO_STUBS
/*
* PAGE_SHIFT determines the page size
- * PAGE_ALIGN(x) aligns the pointer to the (next) page boundary
*/
#define PAGE_SHIFT 12
#define PAGE_SIZE (__XTENSA_UL_CONST(1) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE - 1) & PAGE_MASK)
#define PAGE_OFFSET XCHAL_KSEG_CACHED_VADDR
#define MAX_MEM_PFN XCHAL_KSEG_SIZE
+++ /dev/null
-#include <linux/semaphore.h>
const char *name);
#ifdef CONFIG_PM_SLEEP
+void __init acpi_no_s4_hw_signature(void);
void __init acpi_old_suspend_ordering(void);
#endif /* CONFIG_PM_SLEEP */
#else /* CONFIG_ACPI */
#define _LINUX_ANON_INODES_H
int anon_inode_getfd(const char *name, const struct file_operations *fops,
- void *priv);
+ void *priv, int flags);
#endif /* _LINUX_ANON_INODES_H */
--- /dev/null
+/*
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * Driver for the AT32AP700X PS/2 controller (PSIF).
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#ifndef __INCLUDE_ATMEL_PWM_BL_H
+#define __INCLUDE_ATMEL_PWM_BL_H
+
+/**
+ * struct atmel_pwm_bl_platform_data
+ * @pwm_channel: which PWM channel in the PWM module to use.
+ * @pwm_frequency: PWM frequency to generate, the driver will try to be as
+ * close as the prescaler allows.
+ * @pwm_compare_max: value to use in the PWM channel compare register.
+ * @pwm_duty_max: maximum duty cycle value, must be less than or equal to
+ * pwm_compare_max.
+ * @pwm_duty_min: minimum duty cycle value, must be less than pwm_duty_max.
+ * @pwm_active_low: set to one if the low part of the PWM signal increases the
+ * brightness of the backlight.
+ * @gpio_on: GPIO line to control the backlight on/off, set to -1 if not used.
+ * @on_active_low: set to one if the on/off signal is on when GPIO is low.
+ *
+ * This struct must be added to the platform device in the board code. It is
+ * used by the atmel-pwm-bl driver to setup the GPIO to control on/off and the
+ * PWM device.
+ */
+struct atmel_pwm_bl_platform_data {
+ unsigned int pwm_channel;
+ unsigned int pwm_frequency;
+ unsigned int pwm_compare_max;
+ unsigned int pwm_duty_max;
+ unsigned int pwm_duty_min;
+ unsigned int pwm_active_low;
+ int gpio_on;
+ unsigned int on_active_low;
+};
+
+#endif /* __INCLUDE_ATMEL_PWM_BL_H */
#define AUDIT_ARCH_SHEL64 (EM_SH|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
#define AUDIT_ARCH_SPARC (EM_SPARC)
#define AUDIT_ARCH_SPARC64 (EM_SPARCV9|__AUDIT_ARCH_64BIT)
-#define AUDIT_ARCH_V850 (EM_V850|__AUDIT_ARCH_LE)
#define AUDIT_ARCH_X86_64 (EM_X86_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
#define AUDIT_PERM_EXEC 1
#define AUTOFS_IOC_EXPIRE_INDIRECT AUTOFS_IOC_EXPIRE_MULTI
#define AUTOFS_IOC_EXPIRE_DIRECT AUTOFS_IOC_EXPIRE_MULTI
#define AUTOFS_IOC_PROTOSUBVER _IOR(0x93,0x67,int)
-#define AUTOFS_IOC_ASKREGHOST _IOR(0x93,0x68,int)
-#define AUTOFS_IOC_TOGGLEREGHOST _IOR(0x93,0x69,int)
#define AUTOFS_IOC_ASKUMOUNT _IOR(0x93,0x70,int)
#ifndef _BCD_H
#define _BCD_H
-#define BCD2BIN(val) (((val) & 0x0f) + ((val)>>4)*10)
-#define BIN2BCD(val) ((((val)/10)<<4) + (val)%10)
+#include <linux/compiler.h>
+
+unsigned bcd2bin(unsigned char val) __attribute_const__;
+unsigned char bin2bcd(unsigned val) __attribute_const__;
+
+#define BCD2BIN(val) bcd2bin(val)
+#define BIN2BCD(val) bin2bcd(val)
/* backwards compat */
#define BCD_TO_BIN(val) ((val)=BCD2BIN(val))
misc_bang:1;
struct file * file;
int e_uid, e_gid;
- kernel_cap_t cap_inheritable, cap_permitted;
+ kernel_cap_t cap_post_exec_permitted;
bool cap_effective;
void *security;
int argc, envc;
* memory pages (including holes) on the node.
*/
typedef struct bootmem_data {
- unsigned long node_boot_start;
+ unsigned long node_min_pfn;
unsigned long node_low_pfn;
void *node_bootmem_map;
- unsigned long last_offset;
- unsigned long last_pos;
- unsigned long last_success; /* Previous allocation point. To speed
- * up searching */
+ unsigned long last_end_off;
+ unsigned long hint_idx;
struct list_head list;
} bootmem_data_t;
+extern bootmem_data_t bootmem_node_data[];
+
extern unsigned long bootmem_bootmap_pages(unsigned long);
+
+extern unsigned long init_bootmem_node(pg_data_t *pgdat,
+ unsigned long freepfn,
+ unsigned long startpfn,
+ unsigned long endpfn);
extern unsigned long init_bootmem(unsigned long addr, unsigned long memend);
+
+extern unsigned long free_all_bootmem_node(pg_data_t *pgdat);
+extern unsigned long free_all_bootmem(void);
+
+extern void free_bootmem_node(pg_data_t *pgdat,
+ unsigned long addr,
+ unsigned long size);
extern void free_bootmem(unsigned long addr, unsigned long size);
-extern void *__alloc_bootmem(unsigned long size,
+
+/*
+ * Flags for reserve_bootmem (also if CONFIG_HAVE_ARCH_BOOTMEM_NODE,
+ * the architecture-specific code should honor this).
+ *
+ * If flags is 0, then the return value is always 0 (success). If
+ * flags contains BOOTMEM_EXCLUSIVE, then -EBUSY is returned if the
+ * memory already was reserved.
+ */
+#define BOOTMEM_DEFAULT 0
+#define BOOTMEM_EXCLUSIVE (1<<0)
+
+extern int reserve_bootmem_node(pg_data_t *pgdat,
+ unsigned long physaddr,
+ unsigned long size,
+ int flags);
+#ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE
+extern int reserve_bootmem(unsigned long addr, unsigned long size, int flags);
+#endif
+
+extern void *__alloc_bootmem_nopanic(unsigned long size,
unsigned long align,
unsigned long goal);
-extern void *__alloc_bootmem_nopanic(unsigned long size,
+extern void *__alloc_bootmem(unsigned long size,
unsigned long align,
unsigned long goal);
extern void *__alloc_bootmem_low(unsigned long size,
unsigned long align,
unsigned long goal);
+extern void *__alloc_bootmem_node(pg_data_t *pgdat,
+ unsigned long size,
+ unsigned long align,
+ unsigned long goal);
+extern void *__alloc_bootmem_node_nopanic(pg_data_t *pgdat,
+ unsigned long size,
+ unsigned long align,
+ unsigned long goal);
extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
unsigned long size,
unsigned long align,
unsigned long goal);
-extern void *__alloc_bootmem_core(struct bootmem_data *bdata,
- unsigned long size,
- unsigned long align,
- unsigned long goal,
- unsigned long limit);
-
-/*
- * flags for reserve_bootmem (also if CONFIG_HAVE_ARCH_BOOTMEM_NODE,
- * the architecture-specific code should honor this)
- */
-#define BOOTMEM_DEFAULT 0
-#define BOOTMEM_EXCLUSIVE (1<<0)
-
#ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE
-/*
- * If flags is 0, then the return value is always 0 (success). If
- * flags contains BOOTMEM_EXCLUSIVE, then -EBUSY is returned if the
- * memory already was reserved.
- */
-extern int reserve_bootmem(unsigned long addr, unsigned long size, int flags);
#define alloc_bootmem(x) \
__alloc_bootmem(x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
#define alloc_bootmem_low(x) \
extern int reserve_bootmem_generic(unsigned long addr, unsigned long size,
int flags);
-extern unsigned long free_all_bootmem(void);
-extern unsigned long free_all_bootmem_node(pg_data_t *pgdat);
-extern void *__alloc_bootmem_node(pg_data_t *pgdat,
- unsigned long size,
- unsigned long align,
- unsigned long goal);
-extern unsigned long init_bootmem_node(pg_data_t *pgdat,
- unsigned long freepfn,
- unsigned long startpfn,
- unsigned long endpfn);
-extern int reserve_bootmem_node(pg_data_t *pgdat,
- unsigned long physaddr,
- unsigned long size,
- int flags);
-extern void free_bootmem_node(pg_data_t *pgdat,
- unsigned long addr,
- unsigned long size);
-extern void *alloc_bootmem_section(unsigned long size,
- unsigned long section_nr);
-#ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE
#define alloc_bootmem_node(pgdat, x) \
__alloc_bootmem_node(pgdat, x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
#define alloc_bootmem_pages_node(pgdat, x) \
__alloc_bootmem_node(pgdat, x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS))
#define alloc_bootmem_low_pages_node(pgdat, x) \
__alloc_bootmem_low_node(pgdat, x, PAGE_SIZE, 0)
-#endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */
+
+extern void *alloc_bootmem_section(unsigned long size,
+ unsigned long section_nr);
#ifdef CONFIG_HAVE_ARCH_ALLOC_REMAP
extern void *alloc_remap(int nid, unsigned long size);
#ifdef CONFIG_EVENTFD
+/* For O_CLOEXEC and O_NONBLOCK */
+#include <linux/fcntl.h>
+
+/* Flags for eventfd2. */
+#define EFD_CLOEXEC O_CLOEXEC
+#define EFD_NONBLOCK O_NONBLOCK
+
struct file *eventfd_fget(int fd);
int eventfd_signal(struct file *file, int n);
#ifndef _LINUX_EVENTPOLL_H
#define _LINUX_EVENTPOLL_H
+/* For O_CLOEXEC */
+#include <linux/fcntl.h>
#include <linux/types.h>
+/* Flags for epoll_create1. */
+#define EPOLL_CLOEXEC O_CLOEXEC
/* Valid opcodes to issue to sys_epoll_ctl() */
#define EPOLL_CTL_ADD 1
/* Definitions of frame buffers */
-#define FB_MAJOR 29
#define FB_MAX 32 /* sufficient for now */
/* ioctls
#define FB_ACCEL_XGI_VOLARI_V 47 /* XGI Volari V3XT, V5, V8 */
#define FB_ACCEL_XGI_VOLARI_Z 48 /* XGI Volari Z7 */
#define FB_ACCEL_OMAP1610 49 /* TI OMAP16xx */
+#define FB_ACCEL_TRIDENT_TGUI 50 /* Trident TGUI */
+#define FB_ACCEL_TRIDENT_3DIMAGE 51 /* Trident 3DImage */
+#define FB_ACCEL_TRIDENT_BLADE3D 52 /* Trident Blade3D */
+#define FB_ACCEL_TRIDENT_BLADEXP 53 /* Trident BladeXP */
#define FB_ACCEL_NEOMAGIC_NM2070 90 /* NeoMagic NM2070 */
#define FB_ACCEL_NEOMAGIC_NM2090 91 /* NeoMagic NM2090 */
#define FB_ACCEL_NEOMAGIC_NM2093 92 /* NeoMagic NM2093 */
extern struct list_head super_blocks;
extern spinlock_t sb_lock;
+#define sb_entry(list) list_entry((list), struct super_block, s_list)
#define S_BIAS (1<<30)
struct super_block {
struct list_head s_list; /* Keep this first */
struct list_head s_more_io; /* parked for more writeback */
struct hlist_head s_anon; /* anonymous dentries for (nfs) exporting */
struct list_head s_files;
+ /* s_dentry_lru and s_nr_dentry_unused are protected by dcache_lock */
+ struct list_head s_dentry_lru; /* unused dentry lru */
+ int s_nr_dentry_unused; /* # of dentry on lru */
struct block_device *s_bdev;
struct mtd_info *s_mtd;
atomic_inc(&file->f_path.dentry->d_inode->i_writecount);
}
extern int do_pipe(int *);
-extern struct file *create_read_pipe(struct file *f);
-extern struct file *create_write_pipe(void);
+extern int do_pipe_flags(int *, int);
+extern struct file *create_read_pipe(struct file *f, int flags);
+extern struct file *create_write_pipe(int flags);
extern void free_write_pipe(struct file *);
extern struct file *do_filp_open(int dfd, const char *pathname,
extern ssize_t simple_read_from_buffer(void __user *to, size_t count,
loff_t *ppos, const void *from, size_t available);
-extern ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos,
- const void *from, size_t available);
#ifdef CONFIG_MIGRATION
extern int buffer_migrate_page(struct address_space *,
static inline void arch_alloc_page(struct page *page, int order) { }
#endif
-extern struct page *__alloc_pages(gfp_t, unsigned int, struct zonelist *);
+struct page *
+__alloc_pages_internal(gfp_t gfp_mask, unsigned int order,
+ struct zonelist *zonelist, nodemask_t *nodemask);
+
+static inline struct page *
+__alloc_pages(gfp_t gfp_mask, unsigned int order,
+ struct zonelist *zonelist)
+{
+ return __alloc_pages_internal(gfp_mask, order, zonelist, NULL);
+}
+
+static inline struct page *
+__alloc_pages_nodemask(gfp_t gfp_mask, unsigned int order,
+ struct zonelist *zonelist, nodemask_t *nodemask)
+{
+ return __alloc_pages_internal(gfp_mask, order, zonelist, nodemask);
+}
-extern struct page *
-__alloc_pages_nodemask(gfp_t, unsigned int,
- struct zonelist *, nodemask_t *nodemask);
static inline struct page *alloc_pages_node(int nid, gfp_t gfp_mask,
unsigned int order)
extern unsigned long __get_free_pages(gfp_t gfp_mask, unsigned int order);
extern unsigned long get_zeroed_page(gfp_t gfp_mask);
+void *alloc_pages_exact(size_t size, gfp_t gfp_mask);
+void free_pages_exact(void *virt, size_t size);
+
#define __get_free_page(gfp_mask) \
__get_free_pages((gfp_mask),0)
#include <linux/mempolicy.h>
#include <linux/shm.h>
#include <asm/tlbflush.h>
-#include <asm/hugetlb.h>
struct ctl_table;
return vma->vm_flags & VM_HUGETLB;
}
+void reset_vma_resv_huge_pages(struct vm_area_struct *vma);
int hugetlb_sysctl_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *);
int hugetlb_overcommit_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *);
int hugetlb_treat_movable_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *);
int copy_hugetlb_page_range(struct mm_struct *, struct mm_struct *, struct vm_area_struct *);
int follow_hugetlb_page(struct mm_struct *, struct vm_area_struct *, struct page **, struct vm_area_struct **, unsigned long *, int *, int, int);
-void unmap_hugepage_range(struct vm_area_struct *, unsigned long, unsigned long);
-void __unmap_hugepage_range(struct vm_area_struct *, unsigned long, unsigned long);
+void unmap_hugepage_range(struct vm_area_struct *,
+ unsigned long, unsigned long, struct page *);
+void __unmap_hugepage_range(struct vm_area_struct *,
+ unsigned long, unsigned long, struct page *);
int hugetlb_prefault(struct address_space *, struct vm_area_struct *);
int hugetlb_report_meminfo(char *);
int hugetlb_report_node_meminfo(int, char *);
unsigned long hugetlb_total_pages(void);
int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
unsigned long address, int write_access);
-int hugetlb_reserve_pages(struct inode *inode, long from, long to);
+int hugetlb_reserve_pages(struct inode *inode, long from, long to,
+ struct vm_area_struct *vma);
void hugetlb_unreserve_pages(struct inode *inode, long offset, long freed);
-extern unsigned long max_huge_pages;
-extern unsigned long sysctl_overcommit_huge_pages;
extern unsigned long hugepages_treat_as_movable;
extern const unsigned long hugetlb_zero, hugetlb_infinity;
extern int sysctl_hugetlb_shm_group;
+extern struct list_head huge_boot_pages;
/* arch callbacks */
-pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr);
+pte_t *huge_pte_alloc(struct mm_struct *mm,
+ unsigned long addr, unsigned long sz);
pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr);
int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep);
struct page *follow_huge_addr(struct mm_struct *mm, unsigned long address,
int write);
struct page *follow_huge_pmd(struct mm_struct *mm, unsigned long address,
pmd_t *pmd, int write);
+struct page *follow_huge_pud(struct mm_struct *mm, unsigned long address,
+ pud_t *pud, int write);
int pmd_huge(pmd_t pmd);
+int pud_huge(pud_t pmd);
void hugetlb_change_protection(struct vm_area_struct *vma,
unsigned long address, unsigned long end, pgprot_t newprot);
{
return 0;
}
+
+static inline void reset_vma_resv_huge_pages(struct vm_area_struct *vma)
+{
+}
+
static inline unsigned long hugetlb_total_pages(void)
{
return 0;
#define follow_huge_addr(mm, addr, write) ERR_PTR(-EINVAL)
#define copy_hugetlb_page_range(src, dst, vma) ({ BUG(); 0; })
#define hugetlb_prefault(mapping, vma) ({ BUG(); 0; })
-#define unmap_hugepage_range(vma, start, end) BUG()
+#define unmap_hugepage_range(vma, start, end, page) BUG()
#define hugetlb_report_meminfo(buf) 0
#define hugetlb_report_node_meminfo(n, buf) 0
#define follow_huge_pmd(mm, addr, pmd, write) NULL
-#define prepare_hugepage_range(addr,len) (-EINVAL)
+#define follow_huge_pud(mm, addr, pud, write) NULL
+#define prepare_hugepage_range(file, addr, len) (-EINVAL)
#define pmd_huge(x) 0
+#define pud_huge(x) 0
#define is_hugepage_only_range(mm, addr, len) 0
#define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) ({BUG(); 0; })
#define hugetlb_fault(mm, vma, addr, write) ({ BUG(); 0; })
umode_t mode;
long nr_blocks;
long nr_inodes;
+ struct hstate *hstate;
};
struct hugetlbfs_sb_info {
long max_inodes; /* inodes allowed */
long free_inodes; /* inodes free */
spinlock_t stat_lock;
+ struct hstate *hstate;
};
int hugetlb_get_quota(struct address_space *mapping, long delta);
void hugetlb_put_quota(struct address_space *mapping, long delta);
-#define BLOCKS_PER_HUGEPAGE (HPAGE_SIZE / 512)
-
static inline int is_file_hugepages(struct file *file)
{
if (file->f_op == &hugetlbfs_file_operations)
unsigned long flags);
#endif /* HAVE_ARCH_HUGETLB_UNMAPPED_AREA */
+#ifdef CONFIG_HUGETLB_PAGE
+
+#define HSTATE_NAME_LEN 32
+/* Defines one hugetlb page size */
+struct hstate {
+ int hugetlb_next_nid;
+ unsigned int order;
+ unsigned long mask;
+ unsigned long max_huge_pages;
+ unsigned long nr_huge_pages;
+ unsigned long free_huge_pages;
+ unsigned long resv_huge_pages;
+ unsigned long surplus_huge_pages;
+ unsigned long nr_overcommit_huge_pages;
+ struct list_head hugepage_freelists[MAX_NUMNODES];
+ unsigned int nr_huge_pages_node[MAX_NUMNODES];
+ unsigned int free_huge_pages_node[MAX_NUMNODES];
+ unsigned int surplus_huge_pages_node[MAX_NUMNODES];
+ char name[HSTATE_NAME_LEN];
+};
+
+struct huge_bootmem_page {
+ struct list_head list;
+ struct hstate *hstate;
+};
+
+/* arch callback */
+int __init alloc_bootmem_huge_page(struct hstate *h);
+
+void __init hugetlb_add_hstate(unsigned order);
+struct hstate *size_to_hstate(unsigned long size);
+
+#ifndef HUGE_MAX_HSTATE
+#define HUGE_MAX_HSTATE 1
+#endif
+
+extern struct hstate hstates[HUGE_MAX_HSTATE];
+extern unsigned int default_hstate_idx;
+
+#define default_hstate (hstates[default_hstate_idx])
+
+static inline struct hstate *hstate_inode(struct inode *i)
+{
+ struct hugetlbfs_sb_info *hsb;
+ hsb = HUGETLBFS_SB(i->i_sb);
+ return hsb->hstate;
+}
+
+static inline struct hstate *hstate_file(struct file *f)
+{
+ return hstate_inode(f->f_dentry->d_inode);
+}
+
+static inline struct hstate *hstate_vma(struct vm_area_struct *vma)
+{
+ return hstate_file(vma->vm_file);
+}
+
+static inline unsigned long huge_page_size(struct hstate *h)
+{
+ return (unsigned long)PAGE_SIZE << h->order;
+}
+
+static inline unsigned long huge_page_mask(struct hstate *h)
+{
+ return h->mask;
+}
+
+static inline unsigned int huge_page_order(struct hstate *h)
+{
+ return h->order;
+}
+
+static inline unsigned huge_page_shift(struct hstate *h)
+{
+ return h->order + PAGE_SHIFT;
+}
+
+static inline unsigned int pages_per_huge_page(struct hstate *h)
+{
+ return 1 << h->order;
+}
+
+static inline unsigned int blocks_per_huge_page(struct hstate *h)
+{
+ return huge_page_size(h) / 512;
+}
+
+#include <asm/hugetlb.h>
+
+static inline struct hstate *page_hstate(struct page *page)
+{
+ return size_to_hstate(PAGE_SIZE << compound_order(page));
+}
+
+#else
+struct hstate {};
+#define alloc_bootmem_huge_page(h) NULL
+#define hstate_file(f) NULL
+#define hstate_vma(v) NULL
+#define hstate_inode(i) NULL
+#define huge_page_size(h) PAGE_SIZE
+#define huge_page_mask(h) PAGE_MASK
+#define huge_page_order(h) 0
+#define huge_page_shift(h) PAGE_SHIFT
+#define pages_per_huge_page(h) 1
+#endif
+
#endif /* _LINUX_HUGETLB_H */
#ifndef _LINUX_INOTIFY_H
#define _LINUX_INOTIFY_H
+/* For O_CLOEXEC and O_NONBLOCK */
+#include <linux/fcntl.h>
#include <linux/types.h>
/*
IN_MOVED_TO | IN_DELETE | IN_CREATE | IN_DELETE_SELF | \
IN_MOVE_SELF)
+/* Flags for sys_inotify_init1. */
+#define IN_CLOEXEC O_CLOEXEC
+#define IN_NONBLOCK O_NONBLOCK
+
#ifdef __KERNEL__
#include <linux/dcache.h>
/* The global /sys/kernel/ kobject for people to chain off of */
extern struct kobject *kernel_kobj;
+/* The global /sys/kernel/mm/ kobject for people to chain off of */
+extern struct kobject *mm_kobj;
/* The global /sys/hypervisor/ kobject for people to chain off of */
extern struct kobject *hypervisor_kobj;
/* The global /sys/power/ kobject for people to chain off of */
int (*set_contrast)(struct lcd_device *, int contrast);
/* Check if given framebuffer device is the one LCD is bound to;
return 0 if not, !=0 if it is. If NULL, lcd always matches the fb. */
- int (*check_fb)(struct fb_info *);
+ int (*check_fb)(struct lcd_device *, struct fb_info *);
};
struct lcd_device {
--- /dev/null
+/*
+ * pca9532.h - platform data structure for pca9532 led controller
+ *
+ * Copyright (C) 2008 Riku Voipio <riku.voipio@movial.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * Datasheet: http://www.nxp.com/acrobat/datasheets/PCA9532_3.pdf
+ *
+ */
+
+#ifndef __LINUX_PCA9532_H
+#define __LINUX_PCA9532_H
+
+#include <linux/leds.h>
+
+enum pca9532_state {
+ PCA9532_OFF = 0x0,
+ PCA9532_ON = 0x1,
+ PCA9532_PWM0 = 0x2,
+ PCA9532_PWM1 = 0x3
+};
+
+enum pca9532_type { PCA9532_TYPE_NONE, PCA9532_TYPE_LED,
+ PCA9532_TYPE_N2100_BEEP };
+
+struct pca9532_led {
+ u8 id;
+ struct i2c_client *client;
+ char *name;
+ struct led_classdev ldev;
+ enum pca9532_type type;
+ enum pca9532_state state;
+};
+
+struct pca9532_platform_data {
+ struct pca9532_led leds[16];
+ u8 pwm[2];
+ u8 psc[2];
+};
+
+#endif /* __LINUX_PCA9532_H */
+
struct device *dev;
struct list_head node; /* LED Device list */
- char *default_trigger; /* Trigger to use */
+ const char *default_trigger; /* Trigger to use */
#ifdef CONFIG_LEDS_TRIGGERS
/* Protects the trigger data below */
#define ledtrig_ide_activity() do {} while(0)
#endif
+/*
+ * Generic LED platform data for describing LED names and default triggers.
+ */
+struct led_info {
+ const char *name;
+ char *default_trigger;
+ int flags;
+};
+
+struct led_platform_data {
+ int num_leds;
+ struct led_info *leds;
+};
+
/* For the leds-gpio driver */
struct gpio_led {
const char *name;
#define STL_SIOMEMMAJOR 28
#define ACSI_MAJOR 28
#define AZTECH_CDROM_MAJOR 29
-#define GRAPHDEV_MAJOR 29 /* SparcLinux & Linux/68k /dev/fb */
+#define FB_MAJOR 29 /* /dev/fb* framebuffers */
#define CM206_CDROM_MAJOR 32
#define IDE2_MAJOR 33
#define IDE3_MAJOR 34
#ifdef CONFIG_MEMORY_HOTPLUG
/*
- * Magic number for free bootmem.
+ * Types for free bootmem.
* The normal smallest mapcount is -1. Here is smaller value than it.
*/
-#define SECTION_INFO 0xfffffffe
-#define MIX_INFO 0xfffffffd
-#define NODE_INFO 0xfffffffc
+#define SECTION_INFO (-1 - 1)
+#define MIX_SECTION_INFO (-1 - 2)
+#define NODE_INFO (-1 - 3)
/*
* pgdat resizing functions
unsigned long nr_pages, void *arg,
int (*func)(unsigned long, unsigned long, void *));
+#ifdef CONFIG_MEMORY_HOTREMOVE
+
+extern int is_mem_section_removable(unsigned long pfn, unsigned long nr_pages);
+
+#else
+static inline int is_mem_section_removable(unsigned long pfn,
+ unsigned long nr_pages)
+{
+ return 0;
+}
+#endif /* CONFIG_MEMORY_HOTREMOVE */
+
extern int add_memory(int nid, u64 start, u64 size);
extern int arch_add_memory(int nid, u64 start, u64 size);
extern int remove_memory(u64 start, u64 size);
#include <linux/rbtree.h>
#include <linux/spinlock.h>
#include <linux/nodemask.h>
+#include <linux/pagemap.h>
struct mm_struct;
extern int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol,
int no_context);
#endif
+
+/* Check if a vma is migratable */
+static inline int vma_migratable(struct vm_area_struct *vma)
+{
+ if (vma->vm_flags & (VM_IO|VM_HUGETLB|VM_PFNMAP|VM_RESERVED))
+ return 0;
+ /*
+ * Migration allocates pages in the highest zone. If we cannot
+ * do so then migration (at least from node to node) is not
+ * possible.
+ */
+ if (vma->vm_file &&
+ gfp_zone(mapping_gfp_mask(vma->vm_file->f_mapping))
+ < policy_zone)
+ return 0;
+ return 1;
+}
+
#else
struct mempolicy {};
#include <linux/mm.h>
#include <linux/mempolicy.h>
-#include <linux/pagemap.h>
typedef struct page *new_page_t(struct page *, unsigned long private, int **);
#ifdef CONFIG_MIGRATION
-/* Check if a vma is migratable */
-static inline int vma_migratable(struct vm_area_struct *vma)
-{
- if (vma->vm_flags & (VM_IO|VM_HUGETLB|VM_PFNMAP|VM_RESERVED))
- return 0;
- /*
- * Migration allocates pages in the highest zone. If we cannot
- * do so then migration (at least from node to node) is not
- * possible.
- */
- if (vma->vm_file &&
- gfp_zone(mapping_gfp_mask(vma->vm_file->f_mapping))
- < policy_zone)
- return 0;
- return 1;
-}
-
extern int isolate_lru_page(struct page *p, struct list_head *pagelist);
extern int putback_lru_pages(struct list_head *l);
extern int migrate_page(struct address_space *,
const nodemask_t *from, const nodemask_t *to,
unsigned long flags);
#else
-static inline int vma_migratable(struct vm_area_struct *vma)
- { return 0; }
-
static inline int isolate_lru_page(struct page *p, struct list_head *list)
{ return -ENOSYS; }
static inline int putback_lru_pages(struct list_head *l) { return 0; }
#define nth_page(page,n) pfn_to_page(page_to_pfn((page)) + (n))
+/* to align the pointer to the (next) page boundary */
+#define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE)
+
/*
* Linux kernel virtual memory manager primitives.
* The idea being to have a "virtual" mm in the same way
#define VM_DONTEXPAND 0x00040000 /* Cannot expand with mremap() */
#define VM_RESERVED 0x00080000 /* Count as reserved_vm like IO */
#define VM_ACCOUNT 0x00100000 /* Is a VM accounted object */
+#define VM_NORESERVE 0x00200000 /* should the VM suppress accounting */
#define VM_HUGETLB 0x00400000 /* Huge TLB Page VM */
#define VM_NONLINEAR 0x00800000 /* Is non-linear (remap_file_pages) */
#define VM_MAPPED_COPY 0x01000000 /* T if mapped copy of data (nommu mmap) */
void (*open)(struct vm_area_struct * area);
void (*close)(struct vm_area_struct * area);
int (*fault)(struct vm_area_struct *vma, struct vm_fault *vmf);
- unsigned long (*nopfn)(struct vm_area_struct *area,
- unsigned long address);
/* notification that a previously read-only page is about to become
* writable, if an error is returned it will cause a SIGBUS */
int (*page_mkwrite)(struct vm_area_struct *vma, struct page *page);
+
+ /* called by access_process_vm when get_user_pages() fails, typically
+ * for use by special VMAs that can switch between memory and hardware
+ */
+ int (*access)(struct vm_area_struct *vma, unsigned long addr,
+ void *buf, int len, int write);
#ifdef CONFIG_NUMA
/*
* set_policy() op must add a reference to any non-NULL @new mempolicy
return atomic_read(&(page)->_mapcount) >= 0;
}
-/*
- * Error return values for the *_nopfn functions
- */
-#define NOPFN_SIGBUS ((unsigned long) -1)
-#define NOPFN_OOM ((unsigned long) -2)
-#define NOPFN_REFAULT ((unsigned long) -3)
-
/*
* Different kinds of faults, as returned by handle_mm_fault().
* Used to decide whether a process gets delivered SIGBUS or
int walk_page_range(unsigned long addr, unsigned long end,
struct mm_walk *walk);
-void free_pgd_range(struct mmu_gather **tlb, unsigned long addr,
+void free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
unsigned long end, unsigned long floor, unsigned long ceiling);
-void free_pgtables(struct mmu_gather **tlb, struct vm_area_struct *start_vma,
- unsigned long floor, unsigned long ceiling);
int copy_page_range(struct mm_struct *dst, struct mm_struct *src,
struct vm_area_struct *vma);
void unmap_mapping_range(struct address_space *mapping,
loff_t const holebegin, loff_t const holelen, int even_cows);
+int generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
+ void *buf, int len, int write);
static inline void unmap_shared_mapping_range(struct address_space *mapping,
loff_t const holebegin, loff_t const holelen)
NULL: pte_offset_kernel(pmd, address))
extern void free_area_init(unsigned long * zones_size);
-extern void free_area_init_node(int nid, pg_data_t *pgdat,
- unsigned long * zones_size, unsigned long zone_start_pfn,
- unsigned long *zholes_size);
+extern void free_area_init_node(int nid, unsigned long * zones_size,
+ unsigned long zone_start_pfn, unsigned long *zholes_size);
#ifdef CONFIG_ARCH_POPULATES_NODE_MAP
/*
* With CONFIG_ARCH_POPULATES_NODE_MAP set, an architecture may initialise its
/* Not Yet Implemented */
#define MODULE_SUPPORTED_DEVICE(name)
-/* v850 toolchain uses a `_' prefix for all user symbols */
+/* some toolchains uses a `_' prefix for all user symbols */
#ifndef MODULE_SYMBOL_PREFIX
#define MODULE_SYMBOL_PREFIX ""
#endif
#include <linux/wait.h>
#include <linux/socket.h>
+#include <linux/fcntl.h> /* For O_CLOEXEC and O_NONBLOCK */
#include <asm/socket.h>
struct poll_table_struct;
#define SYS_GETSOCKOPT 15 /* sys_getsockopt(2) */
#define SYS_SENDMSG 16 /* sys_sendmsg(2) */
#define SYS_RECVMSG 17 /* sys_recvmsg(2) */
+#define SYS_PACCEPT 18 /* sys_paccept(2) */
typedef enum {
SS_FREE = 0, /* not allocated */
};
#define SOCK_MAX (SOCK_PACKET + 1)
+/* Mask which covers at least up to SOCK_MASK-1. The
+ * remaining bits are used as flags. */
+#define SOCK_TYPE_MASK 0xf
+
+/* Flags for socket, socketpair, paccept */
+#define SOCK_CLOEXEC O_CLOEXEC
+#ifndef SOCK_NONBLOCK
+#define SOCK_NONBLOCK O_NONBLOCK
+#endif
#endif /* ARCH_HAS_SOCKET_TYPES */
size_t len);
extern int sock_recvmsg(struct socket *sock, struct msghdr *msg,
size_t size, int flags);
-extern int sock_map_fd(struct socket *sock);
+extern int sock_map_fd(struct socket *sock, int flags);
extern struct socket *sockfd_lookup(int fd, int *err);
#define sockfd_put(sock) fput(sock->file)
extern int net_ratelimit(void);
+extern long do_accept(int fd, struct sockaddr __user *upeer_sockaddr,
+ int __user *upeer_addrlen, int flags);
#define net_random() random32()
#define net_srandom(seed) srandom32((__force u32)seed)
#ifdef CONFIG_IA64_UNCACHED_ALLOCATOR
PG_uncached, /* Page has been mapped as uncached */
#endif
- __NR_PAGEFLAGS
+ __NR_PAGEFLAGS,
+
+ /* Filesystems */
+ PG_checked = PG_owner_priv_1,
+
+ /* XEN */
+ PG_pinned = PG_owner_priv_1,
+ PG_savepinned = PG_dirty,
+
+ /* SLOB */
+ PG_slob_page = PG_active,
+ PG_slob_free = PG_private,
+
+ /* SLUB */
+ PG_slub_frozen = PG_active,
+ PG_slub_debug = PG_error,
};
#ifndef __GENERATING_BOUNDS_H
PAGEFLAG(LRU, lru) __CLEARPAGEFLAG(LRU, lru)
PAGEFLAG(Active, active) __CLEARPAGEFLAG(Active, active)
__PAGEFLAG(Slab, slab)
-PAGEFLAG(Checked, owner_priv_1) /* Used by some filesystems */
-PAGEFLAG(Pinned, owner_priv_1) TESTSCFLAG(Pinned, owner_priv_1) /* Xen */
-PAGEFLAG(SavePinned, dirty); /* Xen */
+PAGEFLAG(Checked, checked) /* Used by some filesystems */
+PAGEFLAG(Pinned, pinned) TESTSCFLAG(Pinned, pinned) /* Xen */
+PAGEFLAG(SavePinned, savepinned); /* Xen */
PAGEFLAG(Reserved, reserved) __CLEARPAGEFLAG(Reserved, reserved)
PAGEFLAG(Private, private) __CLEARPAGEFLAG(Private, private)
__SETPAGEFLAG(Private, private)
+__PAGEFLAG(SlobPage, slob_page)
+__PAGEFLAG(SlobFree, slob_free)
+
+__PAGEFLAG(SlubFrozen, slub_frozen)
+__PAGEFLAG(SlubDebug, slub_debug)
+
/*
* Only test-and-set exist for PG_writeback. The unconditional operators are
* risky: they bypass page accounting.
static inline void mapping_set_error(struct address_space *mapping, int error)
{
- if (error) {
+ if (unlikely(error)) {
if (error == -ENOSPC)
set_bit(AS_ENOSPC, &mapping->flags);
else
const char *pattern;
};
-typedef struct match_token match_table_t[];
+typedef const struct match_token match_table_t[];
/* Maximum number of arguments that match_token will find in a pattern */
enum {MAX_OPT_ARGS = 3};
#define _LINUX_PM_H
#include <linux/list.h>
-#include <asm/atomic.h>
-#include <asm/errno.h>
-
-/*
- * Power management requests... these are passed to pm_send_all() and friends.
- *
- * these functions are old and deprecated, see below.
- */
-typedef int __bitwise pm_request_t;
-
-#define PM_SUSPEND ((__force pm_request_t) 1) /* enter D1-D3 */
-#define PM_RESUME ((__force pm_request_t) 2) /* enter D0 */
-
-
-/*
- * Device types... these are passed to pm_register
- */
-typedef int __bitwise pm_dev_t;
-
-#define PM_UNKNOWN_DEV ((__force pm_dev_t) 0) /* generic */
-#define PM_SYS_DEV ((__force pm_dev_t) 1) /* system device (fan, KB controller, ...) */
-#define PM_PCI_DEV ((__force pm_dev_t) 2) /* PCI device */
-#define PM_USB_DEV ((__force pm_dev_t) 3) /* USB device */
-#define PM_SCSI_DEV ((__force pm_dev_t) 4) /* SCSI device */
-#define PM_ISA_DEV ((__force pm_dev_t) 5) /* ISA device */
-#define PM_MTD_DEV ((__force pm_dev_t) 6) /* Memory Technology Device */
-
-/*
- * System device hardware ID (PnP) values
- */
-enum
-{
- PM_SYS_UNKNOWN = 0x00000000, /* generic */
- PM_SYS_KBC = 0x41d00303, /* keyboard controller */
- PM_SYS_COM = 0x41d00500, /* serial port */
- PM_SYS_IRDA = 0x41d00510, /* IRDA controller */
- PM_SYS_FDC = 0x41d00700, /* floppy controller */
- PM_SYS_VGA = 0x41d00900, /* VGA controller */
- PM_SYS_PCMCIA = 0x41d00e00, /* PCMCIA controller */
-};
-
-/*
- * Device identifier
- */
-#define PM_PCI_ID(dev) ((dev)->bus->number << 16 | (dev)->devfn)
-
-/*
- * Request handler callback
- */
-struct pm_dev;
-
-typedef int (*pm_callback)(struct pm_dev *dev, pm_request_t rqst, void *data);
-
-/*
- * Dynamic device information
- */
-struct pm_dev
-{
- pm_dev_t type;
- unsigned long id;
- pm_callback callback;
- void *data;
-
- unsigned long flags;
- unsigned long state;
- unsigned long prev_state;
-
- struct list_head entry;
-};
-
-/* Functions above this comment are list-based old-style power
- * management. Please avoid using them. */
/*
* Callbacks for platform drivers to implement.
* RECOVER Creation of a hibernation image or restoration of the main
* memory contents from a hibernation image has failed, call
* ->thaw() and ->complete() for all devices.
+ *
+ * The following PM_EVENT_ messages are defined for internal use by
+ * kernel subsystems. They are never issued by the PM core.
+ *
+ * USER_SUSPEND Manual selective suspend was issued by userspace.
+ *
+ * USER_RESUME Manual selective resume was issued by userspace.
+ *
+ * REMOTE_WAKEUP Remote-wakeup request was received from the device.
+ *
+ * AUTO_SUSPEND Automatic (device idle) runtime suspend was
+ * initiated by the subsystem.
+ *
+ * AUTO_RESUME Automatic (device needed) runtime resume was
+ * requested by a driver.
*/
#define PM_EVENT_ON 0x0000
#define PM_EVENT_THAW 0x0020
#define PM_EVENT_RESTORE 0x0040
#define PM_EVENT_RECOVER 0x0080
+#define PM_EVENT_USER 0x0100
+#define PM_EVENT_REMOTE 0x0200
+#define PM_EVENT_AUTO 0x0400
-#define PM_EVENT_SLEEP (PM_EVENT_SUSPEND | PM_EVENT_HIBERNATE)
+#define PM_EVENT_SLEEP (PM_EVENT_SUSPEND | PM_EVENT_HIBERNATE)
+#define PM_EVENT_USER_SUSPEND (PM_EVENT_USER | PM_EVENT_SUSPEND)
+#define PM_EVENT_USER_RESUME (PM_EVENT_USER | PM_EVENT_RESUME)
+#define PM_EVENT_REMOTE_WAKEUP (PM_EVENT_REMOTE | PM_EVENT_RESUME)
+#define PM_EVENT_AUTO_SUSPEND (PM_EVENT_AUTO | PM_EVENT_SUSPEND)
+#define PM_EVENT_AUTO_RESUME (PM_EVENT_AUTO | PM_EVENT_RESUME)
+#define PMSG_ON ((struct pm_message){ .event = PM_EVENT_ON, })
#define PMSG_FREEZE ((struct pm_message){ .event = PM_EVENT_FREEZE, })
#define PMSG_QUIESCE ((struct pm_message){ .event = PM_EVENT_QUIESCE, })
#define PMSG_SUSPEND ((struct pm_message){ .event = PM_EVENT_SUSPEND, })
#define PMSG_THAW ((struct pm_message){ .event = PM_EVENT_THAW, })
#define PMSG_RESTORE ((struct pm_message){ .event = PM_EVENT_RESTORE, })
#define PMSG_RECOVER ((struct pm_message){ .event = PM_EVENT_RECOVER, })
-#define PMSG_ON ((struct pm_message){ .event = PM_EVENT_ON, })
+#define PMSG_USER_SUSPEND ((struct pm_messge) \
+ { .event = PM_EVENT_USER_SUSPEND, })
+#define PMSG_USER_RESUME ((struct pm_messge) \
+ { .event = PM_EVENT_USER_RESUME, })
+#define PMSG_REMOTE_RESUME ((struct pm_messge) \
+ { .event = PM_EVENT_REMOTE_RESUME, })
+#define PMSG_AUTO_SUSPEND ((struct pm_messge) \
+ { .event = PM_EVENT_AUTO_SUSPEND, })
+#define PMSG_AUTO_RESUME ((struct pm_messge) \
+ { .event = PM_EVENT_AUTO_RESUME, })
/**
* Device power management states
+++ /dev/null
-#ifndef __LINUX_PM_LEGACY_H__
-#define __LINUX_PM_LEGACY_H__
-
-
-#ifdef CONFIG_PM_LEGACY
-
-/*
- * Register a device with power management
- */
-struct pm_dev __deprecated *
-pm_register(pm_dev_t type, unsigned long id, pm_callback callback);
-
-/*
- * Send a request to all devices
- */
-int __deprecated pm_send_all(pm_request_t rqst, void *data);
-
-#else /* CONFIG_PM_LEGACY */
-
-static inline struct pm_dev *pm_register(pm_dev_t type,
- unsigned long id,
- pm_callback callback)
-{
- return NULL;
-}
-
-static inline int pm_send_all(pm_request_t rqst, void *data)
-{
- return 0;
-}
-
-#endif /* CONFIG_PM_LEGACY */
-
-#endif /* __LINUX_PM_LEGACY_H__ */
-
extern struct class *rtc_class;
+/*
+ * For these RTC methods the device parameter is the physical device
+ * on whatever bus holds the hardware (I2C, Platform, SPI, etc), which
+ * was passed to rtc_device_register(). Its driver_data normally holds
+ * device state, including the rtc_device pointer for the RTC.
+ *
+ * Most of these methods are called with rtc_device.ops_lock held,
+ * through the rtc_*(struct rtc_device *, ...) calls.
+ *
+ * The (current) exceptions are mostly filesystem hooks:
+ * - the proc() hook for procfs
+ * - non-ioctl() chardev hooks: open(), release(), read_callback()
+ * - periodic irq calls: irq_set_state(), irq_set_freq()
+ *
+ * REVISIT those periodic irq calls *do* have ops_lock when they're
+ * issued through ioctl() ...
+ */
struct rtc_class_ops {
int (*open)(struct device *);
void (*release)(struct device *);
#endif
+static inline int object_is_on_stack(void *obj)
+{
+ void *stack = task_stack_page(current);
+
+ return (obj >= stack) && (obj < (stack + THREAD_SIZE));
+}
+
extern void thread_info_cache_init(void);
/* set thread flags in other task's structures
#define LSM_SETID_FS 8
/* forward declares to avoid warnings */
-struct nfsctl_arg;
struct sched_param;
-struct swap_info_struct;
struct request_sock;
/* bprm_apply_creds unsafe reasons */
.wait_list = LIST_HEAD_INIT((name).wait_list), \
}
-#define __DECLARE_SEMAPHORE_GENERIC(name, count) \
- struct semaphore name = __SEMAPHORE_INITIALIZER(name, count)
-
-#define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name, 1)
+#define DECLARE_MUTEX(name) \
+ struct semaphore name = __SEMAPHORE_INITIALIZER(name, 1)
static inline void sema_init(struct semaphore *sem, int val)
{
#define PORT_SUNZILOG 38
#define PORT_SUNSAB 39
-/* NEC v850. */
-#define PORT_V850E_UART 40
-
/* DEC */
#define PORT_DZ 46
#define PORT_ZS 47
#ifndef _LINUX_SIGNALFD_H
#define _LINUX_SIGNALFD_H
+/* For O_CLOEXEC and O_NONBLOCK */
+#include <linux/fcntl.h>
+
+/* Flags for signalfd4. */
+#define SFD_CLOEXEC O_CLOEXEC
+#define SFD_NONBLOCK O_NONBLOCK
struct signalfd_siginfo {
__u32 ssi_signo;
*/
static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
{
- if (n != 0 && size > ULONG_MAX / n)
+ if (size != 0 && n > ULONG_MAX / size)
return NULL;
return __kmalloc(n * size, flags | __GFP_ZERO);
}
#define SM501FB_FLAG_USE_HWACCEL (1<<3)
#define SM501FB_FLAG_PANEL_NO_FPEN (1<<4)
#define SM501FB_FLAG_PANEL_NO_VBIASEN (1<<5)
+#define SM501FB_FLAG_PANEL_INV_FPEN (1<<6)
+#define SM501FB_FLAG_PANEL_INV_VBIASEN (1<<7)
struct sm501_platdata_fbsub {
struct fb_videomode *def_mode;
--- /dev/null
+#ifndef __LINUX_SPI_DS1305_H
+#define __LINUX_SPI_DS1305_H
+
+/*
+ * One-time configuration for ds1305 and ds1306 RTC chips.
+ *
+ * Put a pointer to this in spi_board_info.platform_data if you want to
+ * be sure that Linux (re)initializes this as needed ... after losing
+ * backup power, and potentially on the first boot.
+ */
+struct ds1305_platform_data {
+
+ /* Trickle charge configuration: it's OK to leave out the MAGIC
+ * bitmask; mask in either DS1 or DS2, and then one of 2K/4k/8K.
+ */
+#define DS1305_TRICKLE_MAGIC 0xa0
+#define DS1305_TRICKLE_DS2 0x08 /* two diodes */
+#define DS1305_TRICKLE_DS1 0x04 /* one diode */
+#define DS1305_TRICKLE_2K 0x01 /* 2 KOhm resistance */
+#define DS1305_TRICKLE_4K 0x02 /* 4 KOhm resistance */
+#define DS1305_TRICKLE_8K 0x03 /* 8 KOhm resistance */
+ u8 trickle;
+
+ /* set only on ds1306 parts */
+ bool is_ds1306;
+
+ /* ds1306 only: enable 1 Hz output */
+ bool en_1hz;
+
+ /* REVISIT: the driver currently expects nINT0 to be wired
+ * as the alarm IRQ. ALM1 may also need to be set up ...
+ */
+};
+
+#endif /* __LINUX_SPI_DS1305_H */
int irq;
void *controller_state;
void *controller_data;
- const char *modalias;
+ char modalias[32];
/*
* likely need more hooks for more protocol options affecting how
extern bool sysfs_streq(const char *s1, const char *s2);
+extern ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos,
+ const void *from, size_t available);
+
#endif
#endif /* _LINUX_STRING_H_ */
#endif
asmlinkage long sys_dup(unsigned int fildes);
asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
+asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
unsigned long arg);
asmlinkage long sys_bind(int, struct sockaddr __user *, int);
asmlinkage long sys_connect(int, struct sockaddr __user *, int);
asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
+asmlinkage long sys_paccept(int, struct sockaddr __user *, int __user *,
+ const sigset_t *, size_t, int);
asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
asmlinkage long sys_send(int, void __user *, size_t, unsigned);
asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
fd_set __user *exp, struct timeval __user *tvp);
asmlinkage long sys_epoll_create(int size);
+asmlinkage long sys_epoll_create1(int flags);
asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
struct epoll_event __user *event);
asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
asmlinkage long sys_getrlimit(unsigned int resource,
struct rlimit __user *rlim);
-#if defined(COMPAT_RLIM_OLD_INFINITY) || !(defined(CONFIG_IA64) || defined(CONFIG_V850))
+#if defined(COMPAT_RLIM_OLD_INFINITY) || !(defined(CONFIG_IA64))
asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
#endif
asmlinkage long sys_setrlimit(unsigned int resource,
unsigned long addr, unsigned long flags);
asmlinkage long sys_inotify_init(void);
+asmlinkage long sys_inotify_init1(int flags);
asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
u32 mask);
asmlinkage long sys_inotify_rm_watch(int fd, u32 wd);
size_t len);
asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
+asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
asmlinkage long sys_timerfd_create(int clockid, int flags);
asmlinkage long sys_timerfd_settime(int ufd, int flags,
const struct itimerspec __user *utmr,
struct itimerspec __user *otmr);
asmlinkage long sys_timerfd_gettime(int ufd, struct itimerspec __user *otmr);
asmlinkage long sys_eventfd(unsigned int count);
+asmlinkage long sys_eventfd2(unsigned int count, int flags);
asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
int kernel_execve(const char *filename, char *const argv[], char *const envp[]);
#ifndef _LINUX_TIMERFD_H
#define _LINUX_TIMERFD_H
+/* For O_CLOEXEC and O_NONBLOCK */
+#include <linux/fcntl.h>
+/* Flags for timerfd_settime. */
#define TFD_TIMER_ABSTIME (1 << 0)
+/* Flags for timerfd_create. */
+#define TFD_CLOEXEC O_CLOEXEC
+#define TFD_NONBLOCK O_NONBLOCK
#endif /* _LINUX_TIMERFD_H */
NR_VM_EVENT_ITEMS
};
+extern const struct seq_operations fragmentation_op;
+extern const struct seq_operations pagetypeinfo_op;
+extern const struct seq_operations zoneinfo_op;
+extern const struct seq_operations vmstat_op;
+extern int sysctl_stat_interval;
+
#ifdef CONFIG_VM_EVENT_COUNTERS
/*
* Light weight per cpu counter implementation.
extern void destroy_workqueue(struct workqueue_struct *wq);
extern int queue_work(struct workqueue_struct *wq, struct work_struct *work);
+extern int queue_work_on(int cpu, struct workqueue_struct *wq,
+ struct work_struct *work);
extern int queue_delayed_work(struct workqueue_struct *wq,
struct delayed_work *work, unsigned long delay);
extern int queue_delayed_work_on(int cpu, struct workqueue_struct *wq,
extern void flush_scheduled_work(void);
extern int schedule_work(struct work_struct *work);
+extern int schedule_work_on(int cpu, struct work_struct *work);
extern int schedule_delayed_work(struct delayed_work *work, unsigned long delay);
extern int schedule_delayed_work_on(int cpu, struct delayed_work *work,
unsigned long delay);
struct fb_info *info;
void __iomem *mmio;
unsigned long irq_base;
+ struct work_struct task;
unsigned int guard_time;
struct platform_device *pdev;
--- /dev/null
+/* include/video/ili9320.c
+ *
+ * ILI9320 LCD controller configuration control.
+ *
+ * Copyright 2007 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * http://armlinux.simtec.co.uk/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#define ILI9320_REG(x) (x)
+
+#define ILI9320_INDEX ILI9320_REG(0x00)
+
+#define ILI9320_OSCILATION ILI9320_REG(0x00)
+#define ILI9320_DRIVER ILI9320_REG(0x01)
+#define ILI9320_DRIVEWAVE ILI9320_REG(0x02)
+#define ILI9320_ENTRYMODE ILI9320_REG(0x03)
+#define ILI9320_RESIZING ILI9320_REG(0x04)
+#define ILI9320_DISPLAY1 ILI9320_REG(0x07)
+#define ILI9320_DISPLAY2 ILI9320_REG(0x08)
+#define ILI9320_DISPLAY3 ILI9320_REG(0x09)
+#define ILI9320_DISPLAY4 ILI9320_REG(0x0A)
+#define ILI9320_RGB_IF1 ILI9320_REG(0x0C)
+#define ILI9320_FRAMEMAKER ILI9320_REG(0x0D)
+#define ILI9320_RGB_IF2 ILI9320_REG(0x0F)
+
+#define ILI9320_POWER1 ILI9320_REG(0x10)
+#define ILI9320_POWER2 ILI9320_REG(0x11)
+#define ILI9320_POWER3 ILI9320_REG(0x12)
+#define ILI9320_POWER4 ILI9320_REG(0x13)
+#define ILI9320_GRAM_HORIZ_ADDR ILI9320_REG(0x20)
+#define ILI9320_GRAM_VERT_ADD ILI9320_REG(0x21)
+#define ILI9320_POWER7 ILI9320_REG(0x29)
+#define ILI9320_FRAME_RATE_COLOUR ILI9320_REG(0x2B)
+
+#define ILI9320_GAMMA1 ILI9320_REG(0x30)
+#define ILI9320_GAMMA2 ILI9320_REG(0x31)
+#define ILI9320_GAMMA3 ILI9320_REG(0x32)
+#define ILI9320_GAMMA4 ILI9320_REG(0x35)
+#define ILI9320_GAMMA5 ILI9320_REG(0x36)
+#define ILI9320_GAMMA6 ILI9320_REG(0x37)
+#define ILI9320_GAMMA7 ILI9320_REG(0x38)
+#define ILI9320_GAMMA8 ILI9320_REG(0x39)
+#define ILI9320_GAMMA9 ILI9320_REG(0x3C)
+#define ILI9320_GAMMA10 ILI9320_REG(0x3D)
+
+#define ILI9320_HORIZ_START ILI9320_REG(0x50)
+#define ILI9320_HORIZ_END ILI9320_REG(0x51)
+#define ILI9320_VERT_START ILI9320_REG(0x52)
+#define ILI9320_VERT_END ILI9320_REG(0x53)
+
+#define ILI9320_DRIVER2 ILI9320_REG(0x60)
+#define ILI9320_BASE_IMAGE ILI9320_REG(0x61)
+#define ILI9320_VERT_SCROLL ILI9320_REG(0x6a)
+
+#define ILI9320_PARTIAL1_POSITION ILI9320_REG(0x80)
+#define ILI9320_PARTIAL1_START ILI9320_REG(0x81)
+#define ILI9320_PARTIAL1_END ILI9320_REG(0x82)
+#define ILI9320_PARTIAL2_POSITION ILI9320_REG(0x83)
+#define ILI9320_PARTIAL2_START ILI9320_REG(0x84)
+#define ILI9320_PARTIAL2_END ILI9320_REG(0x85)
+
+#define ILI9320_INTERFACE1 ILI9320_REG(0x90)
+#define ILI9320_INTERFACE2 ILI9320_REG(0x92)
+#define ILI9320_INTERFACE3 ILI9320_REG(0x93)
+#define ILI9320_INTERFACE4 ILI9320_REG(0x95)
+#define ILI9320_INTERFACE5 ILI9320_REG(0x97)
+#define ILI9320_INTERFACE6 ILI9320_REG(0x98)
+
+/* Register contents definitions. */
+
+#define ILI9320_OSCILATION_OSC (1 << 0)
+
+#define ILI9320_DRIVER_SS (1 << 8)
+#define ILI9320_DRIVER_SM (1 << 10)
+
+#define ILI9320_DRIVEWAVE_EOR (1 << 8)
+#define ILI9320_DRIVEWAVE_BC (1 << 9)
+#define ILI9320_DRIVEWAVE_MUSTSET (1 << 10)
+
+#define ILI9320_ENTRYMODE_AM (1 << 3)
+#define ILI9320_ENTRYMODE_ID(x) ((x) << 4)
+#define ILI9320_ENTRYMODE_ORG (1 << 7)
+#define ILI9320_ENTRYMODE_HWM (1 << 8)
+#define ILI9320_ENTRYMODE_BGR (1 << 12)
+#define ILI9320_ENTRYMODE_DFM (1 << 14)
+#define ILI9320_ENTRYMODE_TRI (1 << 15)
+
+
+#define ILI9320_RESIZING_RSZ(x) ((x) << 0)
+#define ILI9320_RESIZING_RCH(x) ((x) << 4)
+#define ILI9320_RESIZING_RCV(x) ((x) << 8)
+
+
+#define ILI9320_DISPLAY1_D(x) ((x) << 0)
+#define ILI9320_DISPLAY1_CL (1 << 3)
+#define ILI9320_DISPLAY1_DTE (1 << 4)
+#define ILI9320_DISPLAY1_GON (1 << 5)
+#define ILI9320_DISPLAY1_BASEE (1 << 8)
+#define ILI9320_DISPLAY1_PTDE(x) ((x) << 12)
+
+
+#define ILI9320_DISPLAY2_BP(x) ((x) << 0)
+#define ILI9320_DISPLAY2_FP(x) ((x) << 8)
+
+
+#define ILI9320_RGBIF1_RIM_RGB18 (0 << 0)
+#define ILI9320_RGBIF1_RIM_RGB16 (1 << 0)
+#define ILI9320_RGBIF1_RIM_RGB6 (2 << 0)
+
+#define ILI9320_RGBIF1_CLK_INT (0 << 4)
+#define ILI9320_RGBIF1_CLK_RGBIF (1 << 4)
+#define ILI9320_RGBIF1_CLK_VSYNC (2 << 4)
+
+#define ILI9320_RGBIF1_RM (1 << 8)
+
+#define ILI9320_RGBIF1_ENC_FRAMES(x) (((x) - 1)<< 13)
+
+#define ILI9320_RGBIF2_DPL (1 << 0)
+#define ILI9320_RGBIF2_EPL (1 << 1)
+#define ILI9320_RGBIF2_HSPL (1 << 3)
+#define ILI9320_RGBIF2_VSPL (1 << 4)
+
+
+#define ILI9320_POWER1_SLP (1 << 1)
+#define ILI9320_POWER1_DSTB (1 << 2)
+#define ILI9320_POWER1_AP(x) ((x) << 4)
+#define ILI9320_POWER1_APE (1 << 7)
+#define ILI9320_POWER1_BT(x) ((x) << 8)
+#define ILI9320_POWER1_SAP (1 << 12)
+
+
+#define ILI9320_POWER2_VC(x) ((x) << 0)
+#define ILI9320_POWER2_DC0(x) ((x) << 4)
+#define ILI9320_POWER2_DC1(x) ((x) << 8)
+
+
+#define ILI9320_POWER3_VRH(x) ((x) << 0)
+#define ILI9320_POWER3_PON (1 << 4)
+#define ILI9320_POWER3_VCMR (1 << 8)
+
+
+#define ILI9320_POWER4_VREOUT(x) ((x) << 8)
+
+
+#define ILI9320_DRIVER2_SCNL(x) ((x) << 0)
+#define ILI9320_DRIVER2_NL(x) ((x) << 8)
+#define ILI9320_DRIVER2_GS (1 << 15)
+
+
+#define ILI9320_BASEIMAGE_REV (1 << 0)
+#define ILI9320_BASEIMAGE_VLE (1 << 1)
+#define ILI9320_BASEIMAGE_NDL (1 << 2)
+
+
+#define ILI9320_INTERFACE4_RTNE(x) (x)
+#define ILI9320_INTERFACE4_DIVE(x) ((x) << 8)
+
+/* SPI interface definitions */
+
+#define ILI9320_SPI_IDCODE (0x70)
+#define ILI9320_SPI_ID(x) ((x) << 2)
+#define ILI9320_SPI_READ (0x01)
+#define ILI9320_SPI_WRITE (0x00)
+#define ILI9320_SPI_DATA (0x02)
+#define ILI9320_SPI_INDEX (0x00)
+
+/* platform data to pass configuration from lcd */
+
+enum ili9320_suspend {
+ ILI9320_SUSPEND_OFF,
+ ILI9320_SUSPEND_DEEP,
+};
+
+struct ili9320_platdata {
+ unsigned short hsize;
+ unsigned short vsize;
+
+ enum ili9320_suspend suspend;
+
+ /* set the reset line, 0 = reset asserted, 1 = normal */
+ void (*reset)(unsigned int val);
+
+ unsigned short entry_mode;
+ unsigned short display2;
+ unsigned short display3;
+ unsigned short display4;
+ unsigned short rgb_if1;
+ unsigned short rgb_if2;
+ unsigned short interface2;
+ unsigned short interface3;
+ unsigned short interface4;
+ unsigned short interface5;
+ unsigned short interface6;
+};
+
#define PCI_CHIP_NM2360 0x0006
#define PCI_CHIP_NM2380 0x0016
-
-struct xtimings {
- unsigned int pixclock;
- unsigned int HDisplay;
- unsigned int HSyncStart;
- unsigned int HSyncEnd;
- unsigned int HTotal;
- unsigned int VDisplay;
- unsigned int VSyncStart;
- unsigned int VSyncEnd;
- unsigned int VTotal;
- unsigned int sync;
- int dblscan;
- int interlaced;
-};
-
-
/* --------------------------------------------------------------------- */
typedef volatile struct {
--- /dev/null
+/* include/video/platform_lcd.h
+ *
+ * Copyright 2008 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * Generic platform-device LCD power control interface.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+*/
+
+struct plat_lcd_data;
+struct fb_info;
+
+struct plat_lcd_data {
+ void (*set_power)(struct plat_lcd_data *, unsigned int power);
+ int (*match_fb)(struct plat_lcd_data *, struct fb_info *);
+};
+
#endif
#if TRIDENTFB_DEBUG
-#define debug(f,a...) printk("%s:" f, __FUNCTION__ , ## a);mdelay(1000);
+#define debug(f, a...) printk("%s:" f, __func__ , ## a);
#else
-#define debug(f,a...)
+#define debug(f, a...)
#endif
#define output(f, a...) pr_info("tridentfb: " f, ## a)
#define CYBER9397DVD 0x939A
#define CYBER9520 0x9520
#define CYBER9525DVD 0x9525
+#define TGUI9440 0x9440
#define TGUI9660 0x9660
+#define PROVIDIA9685 0x9685
#define IMAGE975 0x9750
#define IMAGE985 0x9850
#define BLADE3D 0x9880
#define CYBERBLADEXPm8 0x9910
#define CYBERBLADEXPm16 0x9930
-/* acceleration families */
-#define IMAGE 0
-#define BLADE 1
-#define XP 2
-
-#define is_image(id)
-#define is_xp(id) ((id == CYBERBLADEXPAi1) ||\
- (id == CYBERBLADEXPm8) ||\
- (id == CYBERBLADEXPm16))
-
-#define is_blade(id) ((id == BLADE3D) ||\
- (id == CYBERBLADEE4) ||\
- (id == CYBERBLADEi7) ||\
- (id == CYBERBLADEi7D) ||\
- (id == CYBERBLADEi1) ||\
- (id == CYBERBLADEi1D) ||\
- (id == CYBERBLADEAi1) ||\
- (id == CYBERBLADEAi1D))
-
/* these defines are for 'lcd' variable */
#define LCD_STRETCH 0
#define LCD_CENTER 1
#define LCD_BIOS 2
-/* display types */
-#define DISPLAY_CRT 0
-#define DISPLAY_FP 1
-
-#define flatpanel (displaytype == DISPLAY_FP)
-
/* General Registers */
#define SPR 0x1F /* Software Programming Register (videoram) */
#define SKey 0x37
#define SPKey 0x57
-/* 0x3x4 */
-#define CRTHTotal 0x00
-#define CRTHDispEnd 0x01
-#define CRTHBlankStart 0x02
-#define CRTHBlankEnd 0x03
-#define CRTHSyncStart 0x04
-#define CRTHSyncEnd 0x05
-
-#define CRTVTotal 0x06
-#define CRTVDispEnd 0x12
-#define CRTVBlankStart 0x15
-#define CRTVBlankEnd 0x16
-#define CRTVSyncStart 0x10
-#define CRTVSyncEnd 0x11
-
-#define CRTOverflow 0x07
-#define CRTPRowScan 0x08
-#define CRTMaxScanLine 0x09
-#define CRTModeControl 0x17
-#define CRTLineCompare 0x18
-
/* 3x4 */
-#define StartAddrHigh 0x0C
-#define StartAddrLow 0x0D
-#define Offset 0x13
-#define Underline 0x14
-#define CRTCMode 0x17
#define CRTCModuleTest 0x1E
#define FIFOControl 0x20
#define LinearAddReg 0x21
#define BiosMode 0x5c
#define BiosReg 0x5d
+/* Graphics Engine */
+#define STATUS 0x2120
+#define OLDCMD 0x2124
+#define DRAWFL 0x2128
+#define OLDCLR 0x212C
+#define OLDDST 0x2138
+#define OLDSRC 0x213C
+#define OLDDIM 0x2140
+#define CMD 0x2144
+#define ROP 0x2148
+#define COLOR 0x2160
+#define BGCOLOR 0x2164
+#define SRC1 0x2100
+#define SRC2 0x2104
+#define DST1 0x2108
+#define DST2 0x210C
+
+#define ROP_S 0xCC
+#define ROP_P 0xF0
+#define ROP_X 0x66
if (is_file_hugepages(shp->shm_file)) {
struct address_space *mapping = inode->i_mapping;
- *rss += (HPAGE_SIZE/PAGE_SIZE)*mapping->nrpages;
+ struct hstate *h = hstate_file(shp->shm_file);
+ *rss += pages_per_huge_page(h) * mapping->nrpages;
} else {
struct shmem_inode_info *info = SHMEM_I(inode);
spin_lock(&info->lock);
return 0;
}
+#ifndef CONFIG_SECURITY_FILE_CAPABILITIES
+
+/*
+ * Without filesystem capability support, we nominally support one process
+ * setting the capabilities of another
+ */
+static inline int cap_get_target_pid(pid_t pid, kernel_cap_t *pEp,
+ kernel_cap_t *pIp, kernel_cap_t *pPp)
+{
+ struct task_struct *target;
+ int ret;
+
+ spin_lock(&task_capability_lock);
+ read_lock(&tasklist_lock);
+
+ if (pid && pid != task_pid_vnr(current)) {
+ target = find_task_by_vpid(pid);
+ if (!target) {
+ ret = -ESRCH;
+ goto out;
+ }
+ } else
+ target = current;
+
+ ret = security_capget(target, pEp, pIp, pPp);
+
+out:
+ read_unlock(&tasklist_lock);
+ spin_unlock(&task_capability_lock);
+
+ return ret;
+}
+
+/*
+ * cap_set_pg - set capabilities for all processes in a given process
+ * group. We call this holding task_capability_lock and tasklist_lock.
+ */
+static inline int cap_set_pg(int pgrp_nr, kernel_cap_t *effective,
+ kernel_cap_t *inheritable,
+ kernel_cap_t *permitted)
+{
+ struct task_struct *g, *target;
+ int ret = -EPERM;
+ int found = 0;
+ struct pid *pgrp;
+
+ spin_lock(&task_capability_lock);
+ read_lock(&tasklist_lock);
+
+ pgrp = find_vpid(pgrp_nr);
+ do_each_pid_task(pgrp, PIDTYPE_PGID, g) {
+ target = g;
+ while_each_thread(g, target) {
+ if (!security_capset_check(target, effective,
+ inheritable, permitted)) {
+ security_capset_set(target, effective,
+ inheritable, permitted);
+ ret = 0;
+ }
+ found = 1;
+ }
+ } while_each_pid_task(pgrp, PIDTYPE_PGID, g);
+
+ read_unlock(&tasklist_lock);
+ spin_unlock(&task_capability_lock);
+
+ if (!found)
+ ret = 0;
+ return ret;
+}
+
/*
- * For sys_getproccap() and sys_setproccap(), any of the three
- * capability set pointers may be NULL -- indicating that that set is
- * uninteresting and/or not to be changed.
+ * cap_set_all - set capabilities for all processes other than init
+ * and self. We call this holding task_capability_lock and tasklist_lock.
*/
+static inline int cap_set_all(kernel_cap_t *effective,
+ kernel_cap_t *inheritable,
+ kernel_cap_t *permitted)
+{
+ struct task_struct *g, *target;
+ int ret = -EPERM;
+ int found = 0;
+
+ spin_lock(&task_capability_lock);
+ read_lock(&tasklist_lock);
+
+ do_each_thread(g, target) {
+ if (target == current
+ || is_container_init(target->group_leader))
+ continue;
+ found = 1;
+ if (security_capset_check(target, effective, inheritable,
+ permitted))
+ continue;
+ ret = 0;
+ security_capset_set(target, effective, inheritable, permitted);
+ } while_each_thread(g, target);
+
+ read_unlock(&tasklist_lock);
+ spin_unlock(&task_capability_lock);
+
+ if (!found)
+ ret = 0;
+
+ return ret;
+}
+
+/*
+ * Given the target pid does not refer to the current process we
+ * need more elaborate support... (This support is not present when
+ * filesystem capabilities are configured.)
+ */
+static inline int do_sys_capset_other_tasks(pid_t pid, kernel_cap_t *effective,
+ kernel_cap_t *inheritable,
+ kernel_cap_t *permitted)
+{
+ struct task_struct *target;
+ int ret;
+
+ if (!capable(CAP_SETPCAP))
+ return -EPERM;
+
+ if (pid == -1) /* all procs other than current and init */
+ return cap_set_all(effective, inheritable, permitted);
+
+ else if (pid < 0) /* all procs in process group */
+ return cap_set_pg(-pid, effective, inheritable, permitted);
+
+ /* target != current */
+ spin_lock(&task_capability_lock);
+ read_lock(&tasklist_lock);
+
+ target = find_task_by_vpid(pid);
+ if (!target)
+ ret = -ESRCH;
+ else {
+ ret = security_capset_check(target, effective, inheritable,
+ permitted);
+
+ /* having verified that the proposed changes are legal,
+ we now put them into effect. */
+ if (!ret)
+ security_capset_set(target, effective, inheritable,
+ permitted);
+ }
+
+ read_unlock(&tasklist_lock);
+ spin_unlock(&task_capability_lock);
+
+ return ret;
+}
+
+#else /* ie., def CONFIG_SECURITY_FILE_CAPABILITIES */
+
+/*
+ * If we have configured with filesystem capability support, then the
+ * only thing that can change the capabilities of the current process
+ * is the current process. As such, we can't be in this code at the
+ * same time as we are in the process of setting capabilities in this
+ * process. The net result is that we can limit our use of locks to
+ * when we are reading the caps of another process.
+ */
+static inline int cap_get_target_pid(pid_t pid, kernel_cap_t *pEp,
+ kernel_cap_t *pIp, kernel_cap_t *pPp)
+{
+ int ret;
+
+ if (pid && (pid != task_pid_vnr(current))) {
+ struct task_struct *target;
+
+ spin_lock(&task_capability_lock);
+ read_lock(&tasklist_lock);
+
+ target = find_task_by_vpid(pid);
+ if (!target)
+ ret = -ESRCH;
+ else
+ ret = security_capget(target, pEp, pIp, pPp);
+
+ read_unlock(&tasklist_lock);
+ spin_unlock(&task_capability_lock);
+ } else
+ ret = security_capget(current, pEp, pIp, pPp);
+
+ return ret;
+}
+
+/*
+ * With filesystem capability support configured, the kernel does not
+ * permit the changing of capabilities in one process by another
+ * process. (CAP_SETPCAP has much less broad semantics when configured
+ * this way.)
+ */
+static inline int do_sys_capset_other_tasks(pid_t pid,
+ kernel_cap_t *effective,
+ kernel_cap_t *inheritable,
+ kernel_cap_t *permitted)
+{
+ return -EPERM;
+}
+
+#endif /* ie., ndef CONFIG_SECURITY_FILE_CAPABILITIES */
/*
* Atomically modify the effective capabilities returning the original
{
int ret = 0;
pid_t pid;
- struct task_struct *target;
unsigned tocopy;
kernel_cap_t pE, pI, pP;
if (pid < 0)
return -EINVAL;
- spin_lock(&task_capability_lock);
- read_lock(&tasklist_lock);
-
- if (pid && pid != task_pid_vnr(current)) {
- target = find_task_by_vpid(pid);
- if (!target) {
- ret = -ESRCH;
- goto out;
- }
- } else
- target = current;
-
- ret = security_capget(target, &pE, &pI, &pP);
-
-out:
- read_unlock(&tasklist_lock);
- spin_unlock(&task_capability_lock);
+ ret = cap_get_target_pid(pid, &pE, &pI, &pP);
if (!ret) {
struct __user_cap_data_struct kdata[_KERNEL_CAPABILITY_U32S];
* before modification is attempted and the application
* fails.
*/
-
if (copy_to_user(dataptr, kdata, tocopy
* sizeof(struct __user_cap_data_struct))) {
return -EFAULT;
return ret;
}
-/*
- * cap_set_pg - set capabilities for all processes in a given process
- * group. We call this holding task_capability_lock and tasklist_lock.
- */
-static inline int cap_set_pg(int pgrp_nr, kernel_cap_t *effective,
- kernel_cap_t *inheritable,
- kernel_cap_t *permitted)
-{
- struct task_struct *g, *target;
- int ret = -EPERM;
- int found = 0;
- struct pid *pgrp;
-
- pgrp = find_vpid(pgrp_nr);
- do_each_pid_task(pgrp, PIDTYPE_PGID, g) {
- target = g;
- while_each_thread(g, target) {
- if (!security_capset_check(target, effective,
- inheritable,
- permitted)) {
- security_capset_set(target, effective,
- inheritable,
- permitted);
- ret = 0;
- }
- found = 1;
- }
- } while_each_pid_task(pgrp, PIDTYPE_PGID, g);
-
- if (!found)
- ret = 0;
- return ret;
-}
-
-/*
- * cap_set_all - set capabilities for all processes other than init
- * and self. We call this holding task_capability_lock and tasklist_lock.
- */
-static inline int cap_set_all(kernel_cap_t *effective,
- kernel_cap_t *inheritable,
- kernel_cap_t *permitted)
-{
- struct task_struct *g, *target;
- int ret = -EPERM;
- int found = 0;
-
- do_each_thread(g, target) {
- if (target == current || is_container_init(target->group_leader))
- continue;
- found = 1;
- if (security_capset_check(target, effective, inheritable,
- permitted))
- continue;
- ret = 0;
- security_capset_set(target, effective, inheritable, permitted);
- } while_each_thread(g, target);
-
- if (!found)
- ret = 0;
- return ret;
-}
-
/**
- * sys_capset - set capabilities for a process or a group of processes
+ * sys_capset - set capabilities for a process or (*) a group of processes
* @header: pointer to struct that contains capability version and
* target pid data
* @data: pointer to struct that contains the effective, permitted,
struct __user_cap_data_struct kdata[_KERNEL_CAPABILITY_U32S];
unsigned i, tocopy;
kernel_cap_t inheritable, permitted, effective;
- struct task_struct *target;
int ret;
pid_t pid;
if (get_user(pid, &header->pid))
return -EFAULT;
- if (pid && pid != task_pid_vnr(current) && !capable(CAP_SETPCAP))
- return -EPERM;
-
if (copy_from_user(&kdata, data, tocopy
* sizeof(struct __user_cap_data_struct))) {
return -EFAULT;
i++;
}
- spin_lock(&task_capability_lock);
- read_lock(&tasklist_lock);
-
- if (pid > 0 && pid != task_pid_vnr(current)) {
- target = find_task_by_vpid(pid);
- if (!target) {
- ret = -ESRCH;
- goto out;
- }
- } else
- target = current;
-
- ret = 0;
-
- /* having verified that the proposed changes are legal,
- we now put them into effect. */
- if (pid < 0) {
- if (pid == -1) /* all procs other than current and init */
- ret = cap_set_all(&effective, &inheritable, &permitted);
+ if (pid && (pid != task_pid_vnr(current)))
+ ret = do_sys_capset_other_tasks(pid, &effective, &inheritable,
+ &permitted);
+ else {
+ /*
+ * This lock is required even when filesystem
+ * capability support is configured - it protects the
+ * sys_capget() call from returning incorrect data in
+ * the case that the targeted process is not the
+ * current one.
+ */
+ spin_lock(&task_capability_lock);
- else /* all procs in process group */
- ret = cap_set_pg(-pid, &effective, &inheritable,
- &permitted);
- } else {
- ret = security_capset_check(target, &effective, &inheritable,
+ ret = security_capset_check(current, &effective, &inheritable,
&permitted);
+ /*
+ * Having verified that the proposed changes are
+ * legal, we now put them into effect.
+ */
if (!ret)
- security_capset_set(target, &effective, &inheritable,
+ security_capset_set(current, &effective, &inheritable,
&permitted);
+ spin_unlock(&task_capability_lock);
}
-out:
- read_unlock(&tasklist_lock);
- spin_unlock(&task_capability_lock);
return ret;
}
#include <linux/cpu.h>
#include <linux/cgroup.h>
#include <linux/security.h>
+#include <linux/hugetlb.h>
#include <linux/swap.h>
#include <linux/syscalls.h>
#include <linux/jiffies.h>
spin_unlock(&file->f_mapping->i_mmap_lock);
}
+ /*
+ * Clear hugetlb-related page reserves for children. This only
+ * affects MAP_PRIVATE mappings. Faults generated by the child
+ * are not guaranteed to succeed, even if read-only
+ */
+ if (is_vm_hugetlb_page(tmp))
+ reset_vma_resv_huge_pages(tmp);
+
/*
* Link in the new vma and copy the page table entries.
*/
desc->handle_irq = NULL;
}
+static int __irq_set_trigger(struct irq_chip *chip, unsigned int irq,
+ unsigned long flags)
+{
+ int ret;
+
+ if (!chip || !chip->set_type) {
+ /*
+ * IRQF_TRIGGER_* but the PIC does not support multiple
+ * flow-types?
+ */
+ pr_warning("No set_type function for IRQ %d (%s)\n", irq,
+ chip ? (chip->name ? : "unknown") : "unknown");
+ return 0;
+ }
+
+ ret = chip->set_type(irq, flags & IRQF_TRIGGER_MASK);
+
+ if (ret)
+ pr_err("setting flow type for irq %u failed (%pF)\n",
+ irq, chip->set_type);
+
+ return ret;
+}
+
/*
* Internal function to register an irqaction - typically used to
* allocate special interrupts that are part of the architecture.
const char *old_name = NULL;
unsigned long flags;
int shared = 0;
+ int ret;
if (irq >= NR_IRQS)
return -EINVAL;
shared = 1;
}
- *p = new;
-
- /* Exclude IRQ from balancing */
- if (new->flags & IRQF_NOBALANCING)
- desc->status |= IRQ_NO_BALANCING;
-
if (!shared) {
irq_chip_set_defaults(desc->chip);
-#if defined(CONFIG_IRQ_PER_CPU)
- if (new->flags & IRQF_PERCPU)
- desc->status |= IRQ_PER_CPU;
-#endif
-
/* Setup the type (level, edge polarity) if configured: */
if (new->flags & IRQF_TRIGGER_MASK) {
- if (desc->chip->set_type)
- desc->chip->set_type(irq,
- new->flags & IRQF_TRIGGER_MASK);
- else
- /*
- * IRQF_TRIGGER_* but the PIC does not support
- * multiple flow-types?
- */
- printk(KERN_WARNING "No IRQF_TRIGGER set_type "
- "function for IRQ %d (%s)\n", irq,
- desc->chip->name);
+ ret = __irq_set_trigger(desc->chip, irq, new->flags);
+
+ if (ret) {
+ spin_unlock_irqrestore(&desc->lock, flags);
+ return ret;
+ }
} else
compat_irq_chip_set_default_handler(desc);
+#if defined(CONFIG_IRQ_PER_CPU)
+ if (new->flags & IRQF_PERCPU)
+ desc->status |= IRQ_PER_CPU;
+#endif
desc->status &= ~(IRQ_AUTODETECT | IRQ_WAITING |
IRQ_INPROGRESS | IRQ_SPURIOUS_DISABLED);
/* Set default affinity mask once everything is setup */
irq_select_affinity(irq);
}
+
+ *p = new;
+
+ /* Exclude IRQ from balancing */
+ if (new->flags & IRQF_NOBALANCING)
+ desc->status |= IRQ_NO_BALANCING;
+
/* Reset broken irq detection when installing new handler */
desc->irq_count = 0;
desc->irqs_unhandled = 0;
{
struct file *f;
- f = create_write_pipe();
+ f = create_write_pipe(0);
if (IS_ERR(f))
return PTR_ERR(f);
*filp = f;
- f = create_read_pipe(f);
+ f = create_read_pipe(f, 0);
if (IS_ERR(f)) {
free_write_pipe(*filp);
return PTR_ERR(f);
powered and thus its contents are preserved, such as the
suspend-to-RAM state (e.g. the ACPI S3 state).
+config PM_TEST_SUSPEND
+ bool "Test suspend/resume and wakealarm during bootup"
+ depends on SUSPEND && PM_DEBUG && RTC_LIB=y
+ ---help---
+ This option will let you suspend your machine during bootup, and
+ make it wake up a few seconds later using an RTC wakeup alarm.
+ Enable this with a kernel parameter like "test_suspend=mem".
+
+ You probably want to have your system's RTC driver statically
+ linked, ensuring that it's available when this test runs.
+
config SUSPEND_FREEZER
bool "Enable freezer for suspend to RAM/standby" \
if ARCH_WANTS_FREEZER_CONTROL || BROKEN
#ifdef CONFIG_SUSPEND
+#ifdef CONFIG_PM_TEST_SUSPEND
+
+/*
+ * We test the system suspend code by setting an RTC wakealarm a short
+ * time in the future, then suspending. Suspending the devices won't
+ * normally take long ... some systems only need a few milliseconds.
+ *
+ * The time it takes is system-specific though, so when we test this
+ * during system bootup we allow a LOT of time.
+ */
+#define TEST_SUSPEND_SECONDS 5
+
+static unsigned long suspend_test_start_time;
+
+static void suspend_test_start(void)
+{
+ /* FIXME Use better timebase than "jiffies", ideally a clocksource.
+ * What we want is a hardware counter that will work correctly even
+ * during the irqs-are-off stages of the suspend/resume cycle...
+ */
+ suspend_test_start_time = jiffies;
+}
+
+static void suspend_test_finish(const char *label)
+{
+ long nj = jiffies - suspend_test_start_time;
+ unsigned msec;
+
+ msec = jiffies_to_msecs(abs(nj));
+ pr_info("PM: %s took %d.%03d seconds\n", label,
+ msec / 1000, msec % 1000);
+
+ /* Warning on suspend means the RTC alarm period needs to be
+ * larger -- the system was sooo slooowwww to suspend that the
+ * alarm (should have) fired before the system went to sleep!
+ *
+ * Warning on either suspend or resume also means the system
+ * has some performance issues. The stack dump of a WARN_ON
+ * is more likely to get the right attention than a printk...
+ */
+ WARN_ON(msec > (TEST_SUSPEND_SECONDS * 1000));
+}
+
+#else
+
+static void suspend_test_start(void)
+{
+}
+
+static void suspend_test_finish(const char *label)
+{
+}
+
+#endif
+
/* This is just an arbitrary number */
#define FREE_PAGE_NUMBER (100)
goto Close;
}
suspend_console();
+ suspend_test_start();
error = device_suspend(PMSG_SUSPEND);
if (error) {
printk(KERN_ERR "PM: Some devices failed to suspend\n");
goto Recover_platform;
}
-
+ suspend_test_finish("suspend devices");
if (suspend_test(TEST_DEVICES))
goto Recover_platform;
if (suspend_ops->finish)
suspend_ops->finish();
Resume_devices:
+ suspend_test_start();
device_resume(PMSG_RESUME);
+ suspend_test_finish("resume devices");
resume_console();
Close:
if (suspend_ops->end)
}
core_initcall(pm_init);
+
+
+#ifdef CONFIG_PM_TEST_SUSPEND
+
+#include <linux/rtc.h>
+
+/*
+ * To test system suspend, we need a hands-off mechanism to resume the
+ * system. RTCs wake alarms are a common self-contained mechanism.
+ */
+
+static void __init test_wakealarm(struct rtc_device *rtc, suspend_state_t state)
+{
+ static char err_readtime[] __initdata =
+ KERN_ERR "PM: can't read %s time, err %d\n";
+ static char err_wakealarm [] __initdata =
+ KERN_ERR "PM: can't set %s wakealarm, err %d\n";
+ static char err_suspend[] __initdata =
+ KERN_ERR "PM: suspend test failed, error %d\n";
+ static char info_test[] __initdata =
+ KERN_INFO "PM: test RTC wakeup from '%s' suspend\n";
+
+ unsigned long now;
+ struct rtc_wkalrm alm;
+ int status;
+
+ /* this may fail if the RTC hasn't been initialized */
+ status = rtc_read_time(rtc, &alm.time);
+ if (status < 0) {
+ printk(err_readtime, rtc->dev.bus_id, status);
+ return;
+ }
+ rtc_tm_to_time(&alm.time, &now);
+
+ memset(&alm, 0, sizeof alm);
+ rtc_time_to_tm(now + TEST_SUSPEND_SECONDS, &alm.time);
+ alm.enabled = true;
+
+ status = rtc_set_alarm(rtc, &alm);
+ if (status < 0) {
+ printk(err_wakealarm, rtc->dev.bus_id, status);
+ return;
+ }
+
+ if (state == PM_SUSPEND_MEM) {
+ printk(info_test, pm_states[state]);
+ status = pm_suspend(state);
+ if (status == -ENODEV)
+ state = PM_SUSPEND_STANDBY;
+ }
+ if (state == PM_SUSPEND_STANDBY) {
+ printk(info_test, pm_states[state]);
+ status = pm_suspend(state);
+ }
+ if (status < 0)
+ printk(err_suspend, status);
+}
+
+static int __init has_wakealarm(struct device *dev, void *name_ptr)
+{
+ struct rtc_device *candidate = to_rtc_device(dev);
+
+ if (!candidate->ops->set_alarm)
+ return 0;
+ if (!device_may_wakeup(candidate->dev.parent))
+ return 0;
+
+ *(char **)name_ptr = dev->bus_id;
+ return 1;
+}
+
+/*
+ * Kernel options like "test_suspend=mem" force suspend/resume sanity tests
+ * at startup time. They're normally disabled, for faster boot and because
+ * we can't know which states really work on this particular system.
+ */
+static suspend_state_t test_state __initdata = PM_SUSPEND_ON;
+
+static char warn_bad_state[] __initdata =
+ KERN_WARNING "PM: can't test '%s' suspend state\n";
+
+static int __init setup_test_suspend(char *value)
+{
+ unsigned i;
+
+ /* "=mem" ==> "mem" */
+ value++;
+ for (i = 0; i < PM_SUSPEND_MAX; i++) {
+ if (!pm_states[i])
+ continue;
+ if (strcmp(pm_states[i], value) != 0)
+ continue;
+ test_state = (__force suspend_state_t) i;
+ return 0;
+ }
+ printk(warn_bad_state, value);
+ return 0;
+}
+__setup("test_suspend", setup_test_suspend);
+
+static int __init test_suspend(void)
+{
+ static char warn_no_rtc[] __initdata =
+ KERN_WARNING "PM: no wakealarm-capable RTC driver is ready\n";
+
+ char *pony = NULL;
+ struct rtc_device *rtc = NULL;
+
+ /* PM is initialized by now; is that state testable? */
+ if (test_state == PM_SUSPEND_ON)
+ goto done;
+ if (!valid_state(test_state)) {
+ printk(warn_bad_state, pm_states[test_state]);
+ goto done;
+ }
+
+ /* RTCs have initialized by now too ... can we use one? */
+ class_find_device(rtc_class, NULL, &pony, has_wakealarm);
+ if (pony)
+ rtc = rtc_class_open(pony);
+ if (!rtc) {
+ printk(warn_no_rtc);
+ goto done;
+ }
+
+ /* go for it */
+ test_wakealarm(rtc, test_state);
+ rtc_class_close(rtc);
+done:
+ return 0;
+}
+late_initcall(test_suspend);
+
+#endif /* CONFIG_PM_TEST_SUSPEND */
#include <linux/pm.h>
#include <linux/workqueue.h>
#include <linux/reboot.h>
+#include <linux/cpumask.h>
/*
* When the user hits Sys-Rq o to power down the machine this is the
static void handle_poweroff(int key, struct tty_struct *tty)
{
- schedule_work(&poweroff_work);
+ /* run sysrq poweroff on boot cpu */
+ schedule_work_on(first_cpu(cpu_online_map), &poweroff_work);
}
static struct sysrq_key_op sysrq_poweroff_op = {
unsigned long end_time;
unsigned int todo;
struct timeval start, end;
- s64 elapsed_csecs64;
+ u64 elapsed_csecs64;
unsigned int elapsed_csecs;
do_gettimeofday(&start);
* objects. The main list's elements are of type struct zone_bitmap
* and each of them corresonds to one zone. For each zone bitmap
* object there is a list of objects of type struct bm_block that
- * represent each blocks of bit chunks in which information is
- * stored.
+ * represent each blocks of bitmap in which information is stored.
*
* struct memory_bitmap contains a pointer to the main list of zone
* bitmap objects, a struct bm_position used for browsing the bitmap,
* pfns that correspond to the start and end of the represented zone.
*
* struct bm_block contains a pointer to the memory page in which
- * information is stored (in the form of a block of bit chunks
- * of type unsigned long each). It also contains the pfns that
- * correspond to the start and end of the represented memory area and
- * the number of bit chunks in the block.
+ * information is stored (in the form of a block of bitmap)
+ * It also contains the pfns that correspond to the start and end of
+ * the represented memory area.
*/
#define BM_END_OF_MAP (~0UL)
-#define BM_CHUNKS_PER_BLOCK (PAGE_SIZE / sizeof(long))
-#define BM_BITS_PER_CHUNK (sizeof(long) << 3)
#define BM_BITS_PER_BLOCK (PAGE_SIZE << 3)
struct bm_block {
struct bm_block *next; /* next element of the list */
unsigned long start_pfn; /* pfn represented by the first bit */
unsigned long end_pfn; /* pfn represented by the last bit plus 1 */
- unsigned int size; /* number of bit chunks */
- unsigned long *data; /* chunks of bits representing pages */
+ unsigned long *data; /* bitmap representing pages */
};
+static inline unsigned long bm_block_bits(struct bm_block *bb)
+{
+ return bb->end_pfn - bb->start_pfn;
+}
+
struct zone_bitmap {
struct zone_bitmap *next; /* next element of the list */
unsigned long start_pfn; /* minimal pfn in this zone */
struct bm_position {
struct zone_bitmap *zone_bm;
struct bm_block *block;
- int chunk;
int bit;
};
/* Functions that operate on memory bitmaps */
-static inline void memory_bm_reset_chunk(struct memory_bitmap *bm)
-{
- bm->cur.chunk = 0;
- bm->cur.bit = -1;
-}
-
static void memory_bm_position_reset(struct memory_bitmap *bm)
{
struct zone_bitmap *zone_bm;
zone_bm = bm->zone_bm_list;
bm->cur.zone_bm = zone_bm;
bm->cur.block = zone_bm->bm_blocks;
- memory_bm_reset_chunk(bm);
+ bm->cur.bit = 0;
}
static void memory_bm_free(struct memory_bitmap *bm, int clear_nosave_free);
bb->start_pfn = pfn;
if (nr >= BM_BITS_PER_BLOCK) {
pfn += BM_BITS_PER_BLOCK;
- bb->size = BM_CHUNKS_PER_BLOCK;
nr -= BM_BITS_PER_BLOCK;
} else {
/* This is executed only once in the loop */
pfn += nr;
- bb->size = DIV_ROUND_UP(nr, BM_BITS_PER_CHUNK);
}
bb->end_pfn = pfn;
bb = bb->next;
}
zone_bm->cur_block = bb;
pfn -= bb->start_pfn;
- *bit_nr = pfn % BM_BITS_PER_CHUNK;
- *addr = bb->data + pfn / BM_BITS_PER_CHUNK;
+ *bit_nr = pfn;
+ *addr = bb->data;
return 0;
}
return test_bit(bit, addr);
}
-/* Two auxiliary functions for memory_bm_next_pfn */
-
-/* Find the first set bit in the given chunk, if there is one */
-
-static inline int next_bit_in_chunk(int bit, unsigned long *chunk_p)
-{
- bit++;
- while (bit < BM_BITS_PER_CHUNK) {
- if (test_bit(bit, chunk_p))
- return bit;
-
- bit++;
- }
- return -1;
-}
-
-/* Find a chunk containing some bits set in given block of bits */
-
-static inline int next_chunk_in_block(int n, struct bm_block *bb)
-{
- n++;
- while (n < bb->size) {
- if (bb->data[n])
- return n;
-
- n++;
- }
- return -1;
-}
-
/**
* memory_bm_next_pfn - find the pfn that corresponds to the next set bit
* in the bitmap @bm. If the pfn cannot be found, BM_END_OF_MAP is
{
struct zone_bitmap *zone_bm;
struct bm_block *bb;
- int chunk;
int bit;
do {
bb = bm->cur.block;
do {
- chunk = bm->cur.chunk;
bit = bm->cur.bit;
- do {
- bit = next_bit_in_chunk(bit, bb->data + chunk);
- if (bit >= 0)
- goto Return_pfn;
-
- chunk = next_chunk_in_block(chunk, bb);
- bit = -1;
- } while (chunk >= 0);
+ bit = find_next_bit(bb->data, bm_block_bits(bb), bit);
+ if (bit < bm_block_bits(bb))
+ goto Return_pfn;
+
bb = bb->next;
bm->cur.block = bb;
- memory_bm_reset_chunk(bm);
+ bm->cur.bit = 0;
} while (bb);
zone_bm = bm->cur.zone_bm->next;
if (zone_bm) {
bm->cur.zone_bm = zone_bm;
bm->cur.block = zone_bm->bm_blocks;
- memory_bm_reset_chunk(bm);
+ bm->cur.bit = 0;
}
} while (zone_bm);
memory_bm_position_reset(bm);
return BM_END_OF_MAP;
Return_pfn:
- bm->cur.chunk = chunk;
- bm->cur.bit = bit;
- return bb->start_pfn + chunk * BM_BITS_PER_CHUNK + bit;
+ bm->cur.bit = bit + 1;
+ return bb->start_pfn + bit;
}
/**
{
if (!console_suspend_enabled)
return;
- printk("Suspending console(s)\n");
+ printk("Suspending console(s) (use no_console_suspend to debug)\n");
acquire_console_sem();
console_suspended = 1;
}
cond_syscall(sys_bind);
cond_syscall(sys_listen);
cond_syscall(sys_accept);
+cond_syscall(sys_paccept);
cond_syscall(sys_connect);
cond_syscall(sys_getsockname);
cond_syscall(sys_getpeername);
cond_syscall(compat_sys_keyctl);
cond_syscall(compat_sys_socketcall);
cond_syscall(sys_inotify_init);
+cond_syscall(sys_inotify_init1);
cond_syscall(sys_inotify_add_watch);
cond_syscall(sys_inotify_rm_watch);
cond_syscall(sys_migrate_pages);
/* New file descriptors */
cond_syscall(sys_signalfd);
+cond_syscall(sys_signalfd4);
cond_syscall(compat_sys_signalfd);
cond_syscall(sys_timerfd_create);
cond_syscall(sys_timerfd_settime);
cond_syscall(compat_sys_timerfd_settime);
cond_syscall(compat_sys_timerfd_gettime);
cond_syscall(sys_eventfd);
+cond_syscall(sys_eventfd2);
#include <linux/limits.h>
#include <linux/dcache.h>
#include <linux/syscalls.h>
+#include <linux/vmstat.h>
#include <linux/nfs_fs.h>
#include <linux/acpi.h>
#include <linux/reboot.h>
extern int percpu_pagelist_fraction;
extern int compat_log;
extern int maps_protect;
-extern int sysctl_stat_interval;
extern int latencytop_enabled;
extern int sysctl_nr_open_min, sysctl_nr_open_max;
#ifdef CONFIG_RCU_TORTURE_TEST
#ifdef CONFIG_HUGETLB_PAGE
{
.procname = "nr_hugepages",
- .data = &max_huge_pages,
+ .data = NULL,
.maxlen = sizeof(unsigned long),
.mode = 0644,
.proc_handler = &hugetlb_sysctl_handler,
{
.ctl_name = CTL_UNNUMBERED,
.procname = "nr_overcommit_hugepages",
- .data = &sysctl_overcommit_huge_pages,
- .maxlen = sizeof(sysctl_overcommit_huge_pages),
+ .data = NULL,
+ .maxlen = sizeof(unsigned long),
.mode = 0644,
.proc_handler = &hugetlb_overcommit_handler,
+ .extra1 = (void *)&hugetlb_zero,
+ .extra2 = (void *)&hugetlb_infinity,
},
#endif
{
wake_up(&cwq->more_work);
}
-/* Preempt must be disabled. */
static void __queue_work(struct cpu_workqueue_struct *cwq,
struct work_struct *work)
{
}
EXPORT_SYMBOL_GPL(queue_work);
+/**
+ * queue_work_on - queue work on specific cpu
+ * @cpu: CPU number to execute work on
+ * @wq: workqueue to use
+ * @work: work to queue
+ *
+ * Returns 0 if @work was already on a queue, non-zero otherwise.
+ *
+ * We queue the work to a specific CPU, the caller must ensure it
+ * can't go away.
+ */
+int
+queue_work_on(int cpu, struct workqueue_struct *wq, struct work_struct *work)
+{
+ int ret = 0;
+
+ if (!test_and_set_bit(WORK_STRUCT_PENDING, work_data_bits(work))) {
+ BUG_ON(!list_empty(&work->entry));
+ __queue_work(wq_per_cpu(wq, cpu), work);
+ ret = 1;
+ }
+ return ret;
+}
+EXPORT_SYMBOL_GPL(queue_work_on);
+
static void delayed_work_timer_fn(unsigned long __data)
{
struct delayed_work *dwork = (struct delayed_work *)__data;
}
EXPORT_SYMBOL(schedule_work);
+/*
+ * schedule_work_on - put work task on a specific cpu
+ * @cpu: cpu to put the work task on
+ * @work: job to be done
+ *
+ * This puts a job on a specific cpu
+ */
+int schedule_work_on(int cpu, struct work_struct *work)
+{
+ return queue_work_on(cpu, keventd_wq, work);
+}
+EXPORT_SYMBOL(schedule_work_on);
+
/**
* schedule_delayed_work - put work task in global workqueue after delay
* @dwork: job to be done
If unsure, say N.
+config DEBUG_MEMORY_INIT
+ bool "Debug memory initialisation" if EMBEDDED
+ default !EMBEDDED
+ help
+ Enable this for additional checks during memory initialisation.
+ The sanity checks verify aspects of the VM such as the memory model
+ and other information provided by the architecture. Verbose
+ information will be printed at KERN_DEBUG loglevel depending
+ on the mminit_loglevel= command-line option.
+
+ If unsure, say Y
+
config DEBUG_LIST
bool "Debug linked list manipulation"
depends on DEBUG_KERNEL
lib-y += kobject.o kref.o klist.o
-obj-y += div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \
+obj-y += bcd.o div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \
bust_spinlocks.o hexdump.o kasprintf.o bitmap.o scatterlist.o
ifeq ($(CONFIG_DEBUG_KOBJECT),y)
--- /dev/null
+#include <linux/bcd.h>
+#include <linux/module.h>
+
+unsigned bcd2bin(unsigned char val)
+{
+ return (val & 0x0f) + (val >> 4) * 10;
+}
+EXPORT_SYMBOL(bcd2bin);
+
+unsigned char bin2bcd(unsigned val)
+{
+ return ((val / 10) << 4) + val % 10;
+}
+EXPORT_SYMBOL(bin2bcd);
static void debug_object_is_on_stack(void *addr, int onstack)
{
- void *stack = current->stack;
int is_on_stack;
static int limit;
if (limit > 4)
return;
- is_on_stack = (addr >= stack && addr < (stack + THREAD_SIZE));
-
+ is_on_stack = object_is_on_stack(addr);
if (is_on_stack == onstack)
return;
config MIGRATION
bool "Page migration"
def_bool y
- depends on NUMA
+ depends on NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE
help
Allows the migration of the physical location of pages of processes
while the virtual addresses are not changed. This is useful for
maccess.o page_alloc.o page-writeback.o pdflush.o \
readahead.o swap.o truncate.o vmscan.o \
prio_tree.o util.o mmzone.o vmstat.o backing-dev.o \
- page_isolation.o $(mmu-y)
+ page_isolation.o mm_init.o $(mmu-y)
obj-$(CONFIG_PROC_PAGE_MONITOR) += pagewalk.o
obj-$(CONFIG_BOUNCE) += bounce.o
/*
- * linux/mm/bootmem.c
+ * bootmem - A boot-time physical memory allocator and configurator
*
* Copyright (C) 1999 Ingo Molnar
- * Discontiguous memory support, Kanoj Sarcar, SGI, Nov 1999
+ * 1999 Kanoj Sarcar, SGI
+ * 2008 Johannes Weiner
*
- * simple boot-time physical memory area allocator and
- * free memory collector. It's used to deal with reserved
- * system memory and memory holes as well.
+ * Access to this subsystem has to be serialized externally (which is true
+ * for the boot process anyway).
*/
#include <linux/init.h>
#include <linux/pfn.h>
#include "internal.h"
-/*
- * Access to this subsystem has to be serialized externally. (this is
- * true for the boot process anyway)
- */
unsigned long max_low_pfn;
unsigned long min_low_pfn;
unsigned long max_pfn;
-static LIST_HEAD(bdata_list);
#ifdef CONFIG_CRASH_DUMP
/*
* If we have booted due to a crash, max_pfn will be a very low value. We need
unsigned long saved_max_pfn;
#endif
-/* return the number of _pages_ that will be allocated for the boot bitmap */
-unsigned long __init bootmem_bootmap_pages(unsigned long pages)
+bootmem_data_t bootmem_node_data[MAX_NUMNODES] __initdata;
+
+static struct list_head bdata_list __initdata = LIST_HEAD_INIT(bdata_list);
+
+static int bootmem_debug;
+
+static int __init bootmem_debug_setup(char *buf)
{
- unsigned long mapsize;
+ bootmem_debug = 1;
+ return 0;
+}
+early_param("bootmem_debug", bootmem_debug_setup);
- mapsize = (pages+7)/8;
- mapsize = (mapsize + ~PAGE_MASK) & PAGE_MASK;
- mapsize >>= PAGE_SHIFT;
+#define bdebug(fmt, args...) ({ \
+ if (unlikely(bootmem_debug)) \
+ printk(KERN_INFO \
+ "bootmem::%s " fmt, \
+ __FUNCTION__, ## args); \
+})
- return mapsize;
+static unsigned long __init bootmap_bytes(unsigned long pages)
+{
+ unsigned long bytes = (pages + 7) / 8;
+
+ return ALIGN(bytes, sizeof(long));
}
-/*
- * link bdata in order
+/**
+ * bootmem_bootmap_pages - calculate bitmap size in pages
+ * @pages: number of pages the bitmap has to represent
*/
-static void __init link_bootmem(bootmem_data_t *bdata)
+unsigned long __init bootmem_bootmap_pages(unsigned long pages)
{
- bootmem_data_t *ent;
+ unsigned long bytes = bootmap_bytes(pages);
- if (list_empty(&bdata_list)) {
- list_add(&bdata->list, &bdata_list);
- return;
- }
- /* insert in order */
- list_for_each_entry(ent, &bdata_list, list) {
- if (bdata->node_boot_start < ent->node_boot_start) {
- list_add_tail(&bdata->list, &ent->list);
- return;
- }
- }
- list_add_tail(&bdata->list, &bdata_list);
+ return PAGE_ALIGN(bytes) >> PAGE_SHIFT;
}
/*
- * Given an initialised bdata, it returns the size of the boot bitmap
+ * link bdata in order
*/
-static unsigned long __init get_mapsize(bootmem_data_t *bdata)
+static void __init link_bootmem(bootmem_data_t *bdata)
{
- unsigned long mapsize;
- unsigned long start = PFN_DOWN(bdata->node_boot_start);
- unsigned long end = bdata->node_low_pfn;
+ struct list_head *iter;
- mapsize = ((end - start) + 7) / 8;
- return ALIGN(mapsize, sizeof(long));
+ list_for_each(iter, &bdata_list) {
+ bootmem_data_t *ent;
+
+ ent = list_entry(iter, bootmem_data_t, list);
+ if (bdata->node_min_pfn < ent->node_min_pfn)
+ break;
+ }
+ list_add_tail(&bdata->list, iter);
}
/*
* Called once to set up the allocator itself.
*/
-static unsigned long __init init_bootmem_core(pg_data_t *pgdat,
+static unsigned long __init init_bootmem_core(bootmem_data_t *bdata,
unsigned long mapstart, unsigned long start, unsigned long end)
{
- bootmem_data_t *bdata = pgdat->bdata;
unsigned long mapsize;
+ mminit_validate_memmodel_limits(&start, &end);
bdata->node_bootmem_map = phys_to_virt(PFN_PHYS(mapstart));
- bdata->node_boot_start = PFN_PHYS(start);
+ bdata->node_min_pfn = start;
bdata->node_low_pfn = end;
link_bootmem(bdata);
* Initially all pages are reserved - setup_arch() has to
* register free RAM areas explicitly.
*/
- mapsize = get_mapsize(bdata);
+ mapsize = bootmap_bytes(end - start);
memset(bdata->node_bootmem_map, 0xff, mapsize);
+ bdebug("nid=%td start=%lx map=%lx end=%lx mapsize=%lx\n",
+ bdata - bootmem_node_data, start, mapstart, end, mapsize);
+
return mapsize;
}
-/*
- * Marks a particular physical memory range as unallocatable. Usable RAM
- * might be used for boot-time allocations - or it might get added
- * to the free page pool later on.
+/**
+ * init_bootmem_node - register a node as boot memory
+ * @pgdat: node to register
+ * @freepfn: pfn where the bitmap for this node is to be placed
+ * @startpfn: first pfn on the node
+ * @endpfn: first pfn after the node
+ *
+ * Returns the number of bytes needed to hold the bitmap for this node.
*/
-static int __init can_reserve_bootmem_core(bootmem_data_t *bdata,
- unsigned long addr, unsigned long size, int flags)
+unsigned long __init init_bootmem_node(pg_data_t *pgdat, unsigned long freepfn,
+ unsigned long startpfn, unsigned long endpfn)
{
- unsigned long sidx, eidx;
- unsigned long i;
+ return init_bootmem_core(pgdat->bdata, freepfn, startpfn, endpfn);
+}
- BUG_ON(!size);
+/**
+ * init_bootmem - register boot memory
+ * @start: pfn where the bitmap is to be placed
+ * @pages: number of available physical pages
+ *
+ * Returns the number of bytes needed to hold the bitmap.
+ */
+unsigned long __init init_bootmem(unsigned long start, unsigned long pages)
+{
+ max_low_pfn = pages;
+ min_low_pfn = start;
+ return init_bootmem_core(NODE_DATA(0)->bdata, start, 0, pages);
+}
- /* out of range, don't hold other */
- if (addr + size < bdata->node_boot_start ||
- PFN_DOWN(addr) > bdata->node_low_pfn)
+static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
+{
+ int aligned;
+ struct page *page;
+ unsigned long start, end, pages, count = 0;
+
+ if (!bdata->node_bootmem_map)
return 0;
+ start = bdata->node_min_pfn;
+ end = bdata->node_low_pfn;
+
/*
- * Round up to index to the range.
+ * If the start is aligned to the machines wordsize, we might
+ * be able to free pages in bulks of that order.
*/
- if (addr > bdata->node_boot_start)
- sidx= PFN_DOWN(addr - bdata->node_boot_start);
- else
- sidx = 0;
+ aligned = !(start & (BITS_PER_LONG - 1));
- eidx = PFN_UP(addr + size - bdata->node_boot_start);
- if (eidx > bdata->node_low_pfn - PFN_DOWN(bdata->node_boot_start))
- eidx = bdata->node_low_pfn - PFN_DOWN(bdata->node_boot_start);
+ bdebug("nid=%td start=%lx end=%lx aligned=%d\n",
+ bdata - bootmem_node_data, start, end, aligned);
- for (i = sidx; i < eidx; i++) {
- if (test_bit(i, bdata->node_bootmem_map)) {
- if (flags & BOOTMEM_EXCLUSIVE)
- return -EBUSY;
- }
- }
+ while (start < end) {
+ unsigned long *map, idx, vec;
- return 0;
+ map = bdata->node_bootmem_map;
+ idx = start - bdata->node_min_pfn;
+ vec = ~map[idx / BITS_PER_LONG];
-}
+ if (aligned && vec == ~0UL && start + BITS_PER_LONG < end) {
+ int order = ilog2(BITS_PER_LONG);
-static void __init reserve_bootmem_core(bootmem_data_t *bdata,
- unsigned long addr, unsigned long size, int flags)
-{
- unsigned long sidx, eidx;
- unsigned long i;
-
- BUG_ON(!size);
+ __free_pages_bootmem(pfn_to_page(start), order);
+ count += BITS_PER_LONG;
+ } else {
+ unsigned long off = 0;
- /* out of range */
- if (addr + size < bdata->node_boot_start ||
- PFN_DOWN(addr) > bdata->node_low_pfn)
- return;
+ while (vec && off < BITS_PER_LONG) {
+ if (vec & 1) {
+ page = pfn_to_page(start + off);
+ __free_pages_bootmem(page, 0);
+ count++;
+ }
+ vec >>= 1;
+ off++;
+ }
+ }
+ start += BITS_PER_LONG;
+ }
- /*
- * Round up to index to the range.
- */
- if (addr > bdata->node_boot_start)
- sidx= PFN_DOWN(addr - bdata->node_boot_start);
- else
- sidx = 0;
+ page = virt_to_page(bdata->node_bootmem_map);
+ pages = bdata->node_low_pfn - bdata->node_min_pfn;
+ pages = bootmem_bootmap_pages(pages);
+ count += pages;
+ while (pages--)
+ __free_pages_bootmem(page++, 0);
- eidx = PFN_UP(addr + size - bdata->node_boot_start);
- if (eidx > bdata->node_low_pfn - PFN_DOWN(bdata->node_boot_start))
- eidx = bdata->node_low_pfn - PFN_DOWN(bdata->node_boot_start);
+ bdebug("nid=%td released=%lx\n", bdata - bootmem_node_data, count);
- for (i = sidx; i < eidx; i++) {
- if (test_and_set_bit(i, bdata->node_bootmem_map)) {
-#ifdef CONFIG_DEBUG_BOOTMEM
- printk("hm, page %08lx reserved twice.\n", i*PAGE_SIZE);
-#endif
- }
- }
+ return count;
}
-static void __init free_bootmem_core(bootmem_data_t *bdata, unsigned long addr,
- unsigned long size)
+/**
+ * free_all_bootmem_node - release a node's free pages to the buddy allocator
+ * @pgdat: node to be released
+ *
+ * Returns the number of pages actually released.
+ */
+unsigned long __init free_all_bootmem_node(pg_data_t *pgdat)
{
- unsigned long sidx, eidx;
- unsigned long i;
-
- BUG_ON(!size);
+ register_page_bootmem_info_node(pgdat);
+ return free_all_bootmem_core(pgdat->bdata);
+}
- /* out range */
- if (addr + size < bdata->node_boot_start ||
- PFN_DOWN(addr) > bdata->node_low_pfn)
- return;
- /*
- * round down end of usable mem, partially free pages are
- * considered reserved.
- */
+/**
+ * free_all_bootmem - release free pages to the buddy allocator
+ *
+ * Returns the number of pages actually released.
+ */
+unsigned long __init free_all_bootmem(void)
+{
+ return free_all_bootmem_core(NODE_DATA(0)->bdata);
+}
- if (addr >= bdata->node_boot_start && addr < bdata->last_success)
- bdata->last_success = addr;
+static void __init __free(bootmem_data_t *bdata,
+ unsigned long sidx, unsigned long eidx)
+{
+ unsigned long idx;
- /*
- * Round up to index to the range.
- */
- if (PFN_UP(addr) > PFN_DOWN(bdata->node_boot_start))
- sidx = PFN_UP(addr) - PFN_DOWN(bdata->node_boot_start);
- else
- sidx = 0;
+ bdebug("nid=%td start=%lx end=%lx\n", bdata - bootmem_node_data,
+ sidx + bdata->node_min_pfn,
+ eidx + bdata->node_min_pfn);
- eidx = PFN_DOWN(addr + size - bdata->node_boot_start);
- if (eidx > bdata->node_low_pfn - PFN_DOWN(bdata->node_boot_start))
- eidx = bdata->node_low_pfn - PFN_DOWN(bdata->node_boot_start);
+ if (bdata->hint_idx > sidx)
+ bdata->hint_idx = sidx;
- for (i = sidx; i < eidx; i++) {
- if (unlikely(!test_and_clear_bit(i, bdata->node_bootmem_map)))
+ for (idx = sidx; idx < eidx; idx++)
+ if (!test_and_clear_bit(idx, bdata->node_bootmem_map))
BUG();
- }
}
-/*
- * We 'merge' subsequent allocations to save space. We might 'lose'
- * some fraction of a page if allocations cannot be satisfied due to
- * size constraints on boxes where there is physical RAM space
- * fragmentation - in these cases (mostly large memory boxes) this
- * is not a problem.
- *
- * On low memory boxes we get it right in 100% of the cases.
- *
- * alignment has to be a power of 2 value.
- *
- * NOTE: This function is _not_ reentrant.
- */
-void * __init
-__alloc_bootmem_core(struct bootmem_data *bdata, unsigned long size,
- unsigned long align, unsigned long goal, unsigned long limit)
+static int __init __reserve(bootmem_data_t *bdata, unsigned long sidx,
+ unsigned long eidx, int flags)
{
- unsigned long areasize, preferred;
- unsigned long i, start = 0, incr, eidx, end_pfn;
- void *ret;
- unsigned long node_boot_start;
- void *node_bootmem_map;
-
- if (!size) {
- printk("__alloc_bootmem_core(): zero-sized request\n");
- BUG();
- }
- BUG_ON(align & (align-1));
-
- /* on nodes without memory - bootmem_map is NULL */
- if (!bdata->node_bootmem_map)
- return NULL;
+ unsigned long idx;
+ int exclusive = flags & BOOTMEM_EXCLUSIVE;
+
+ bdebug("nid=%td start=%lx end=%lx flags=%x\n",
+ bdata - bootmem_node_data,
+ sidx + bdata->node_min_pfn,
+ eidx + bdata->node_min_pfn,
+ flags);
+
+ for (idx = sidx; idx < eidx; idx++)
+ if (test_and_set_bit(idx, bdata->node_bootmem_map)) {
+ if (exclusive) {
+ __free(bdata, sidx, idx);
+ return -EBUSY;
+ }
+ bdebug("silent double reserve of PFN %lx\n",
+ idx + bdata->node_min_pfn);
+ }
+ return 0;
+}
- /* bdata->node_boot_start is supposed to be (12+6)bits alignment on x86_64 ? */
- node_boot_start = bdata->node_boot_start;
- node_bootmem_map = bdata->node_bootmem_map;
- if (align) {
- node_boot_start = ALIGN(bdata->node_boot_start, align);
- if (node_boot_start > bdata->node_boot_start)
- node_bootmem_map = (unsigned long *)bdata->node_bootmem_map +
- PFN_DOWN(node_boot_start - bdata->node_boot_start)/BITS_PER_LONG;
- }
+static int __init mark_bootmem_node(bootmem_data_t *bdata,
+ unsigned long start, unsigned long end,
+ int reserve, int flags)
+{
+ unsigned long sidx, eidx;
- if (limit && node_boot_start >= limit)
- return NULL;
+ bdebug("nid=%td start=%lx end=%lx reserve=%d flags=%x\n",
+ bdata - bootmem_node_data, start, end, reserve, flags);
- end_pfn = bdata->node_low_pfn;
- limit = PFN_DOWN(limit);
- if (limit && end_pfn > limit)
- end_pfn = limit;
+ BUG_ON(start < bdata->node_min_pfn);
+ BUG_ON(end > bdata->node_low_pfn);
- eidx = end_pfn - PFN_DOWN(node_boot_start);
+ sidx = start - bdata->node_min_pfn;
+ eidx = end - bdata->node_min_pfn;
- /*
- * We try to allocate bootmem pages above 'goal'
- * first, then we try to allocate lower pages.
- */
- preferred = 0;
- if (goal && PFN_DOWN(goal) < end_pfn) {
- if (goal > node_boot_start)
- preferred = goal - node_boot_start;
-
- if (bdata->last_success > node_boot_start &&
- bdata->last_success - node_boot_start >= preferred)
- if (!limit || (limit && limit > bdata->last_success))
- preferred = bdata->last_success - node_boot_start;
- }
+ if (reserve)
+ return __reserve(bdata, sidx, eidx, flags);
+ else
+ __free(bdata, sidx, eidx);
+ return 0;
+}
- preferred = PFN_DOWN(ALIGN(preferred, align));
- areasize = (size + PAGE_SIZE-1) / PAGE_SIZE;
- incr = align >> PAGE_SHIFT ? : 1;
+static int __init mark_bootmem(unsigned long start, unsigned long end,
+ int reserve, int flags)
+{
+ unsigned long pos;
+ bootmem_data_t *bdata;
-restart_scan:
- for (i = preferred; i < eidx;) {
- unsigned long j;
+ pos = start;
+ list_for_each_entry(bdata, &bdata_list, list) {
+ int err;
+ unsigned long max;
- i = find_next_zero_bit(node_bootmem_map, eidx, i);
- i = ALIGN(i, incr);
- if (i >= eidx)
- break;
- if (test_bit(i, node_bootmem_map)) {
- i += incr;
+ if (pos < bdata->node_min_pfn ||
+ pos >= bdata->node_low_pfn) {
+ BUG_ON(pos != start);
continue;
}
- for (j = i + 1; j < i + areasize; ++j) {
- if (j >= eidx)
- goto fail_block;
- if (test_bit(j, node_bootmem_map))
- goto fail_block;
- }
- start = i;
- goto found;
- fail_block:
- i = ALIGN(j, incr);
- if (i == j)
- i += incr;
- }
- if (preferred > 0) {
- preferred = 0;
- goto restart_scan;
- }
- return NULL;
+ max = min(bdata->node_low_pfn, end);
-found:
- bdata->last_success = PFN_PHYS(start) + node_boot_start;
- BUG_ON(start >= eidx);
-
- /*
- * Is the next page of the previous allocation-end the start
- * of this allocation's buffer? If yes then we can 'merge'
- * the previous partial page with this allocation.
- */
- if (align < PAGE_SIZE &&
- bdata->last_offset && bdata->last_pos+1 == start) {
- unsigned long offset, remaining_size;
- offset = ALIGN(bdata->last_offset, align);
- BUG_ON(offset > PAGE_SIZE);
- remaining_size = PAGE_SIZE - offset;
- if (size < remaining_size) {
- areasize = 0;
- /* last_pos unchanged */
- bdata->last_offset = offset + size;
- ret = phys_to_virt(bdata->last_pos * PAGE_SIZE +
- offset + node_boot_start);
- } else {
- remaining_size = size - remaining_size;
- areasize = (remaining_size + PAGE_SIZE-1) / PAGE_SIZE;
- ret = phys_to_virt(bdata->last_pos * PAGE_SIZE +
- offset + node_boot_start);
- bdata->last_pos = start + areasize - 1;
- bdata->last_offset = remaining_size;
+ err = mark_bootmem_node(bdata, pos, max, reserve, flags);
+ if (reserve && err) {
+ mark_bootmem(start, pos, 0, 0);
+ return err;
}
- bdata->last_offset &= ~PAGE_MASK;
- } else {
- bdata->last_pos = start + areasize - 1;
- bdata->last_offset = size & ~PAGE_MASK;
- ret = phys_to_virt(start * PAGE_SIZE + node_boot_start);
- }
- /*
- * Reserve the area now:
- */
- for (i = start; i < start + areasize; i++)
- if (unlikely(test_and_set_bit(i, node_bootmem_map)))
- BUG();
- memset(ret, 0, size);
- return ret;
+ if (max == end)
+ return 0;
+ pos = bdata->node_low_pfn;
+ }
+ BUG();
}
-static unsigned long __init free_all_bootmem_core(pg_data_t *pgdat)
+/**
+ * free_bootmem_node - mark a page range as usable
+ * @pgdat: node the range resides on
+ * @physaddr: starting address of the range
+ * @size: size of the range in bytes
+ *
+ * Partial pages will be considered reserved and left as they are.
+ *
+ * The range must reside completely on the specified node.
+ */
+void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
+ unsigned long size)
{
- struct page *page;
- unsigned long pfn;
- bootmem_data_t *bdata = pgdat->bdata;
- unsigned long i, count, total = 0;
- unsigned long idx;
- unsigned long *map;
- int gofast = 0;
-
- BUG_ON(!bdata->node_bootmem_map);
-
- count = 0;
- /* first extant page of the node */
- pfn = PFN_DOWN(bdata->node_boot_start);
- idx = bdata->node_low_pfn - pfn;
- map = bdata->node_bootmem_map;
- /* Check physaddr is O(LOG2(BITS_PER_LONG)) page aligned */
- if (bdata->node_boot_start == 0 ||
- ffs(bdata->node_boot_start) - PAGE_SHIFT > ffs(BITS_PER_LONG))
- gofast = 1;
- for (i = 0; i < idx; ) {
- unsigned long v = ~map[i / BITS_PER_LONG];
-
- if (gofast && v == ~0UL) {
- int order;
-
- page = pfn_to_page(pfn);
- count += BITS_PER_LONG;
- order = ffs(BITS_PER_LONG) - 1;
- __free_pages_bootmem(page, order);
- i += BITS_PER_LONG;
- page += BITS_PER_LONG;
- } else if (v) {
- unsigned long m;
-
- page = pfn_to_page(pfn);
- for (m = 1; m && i < idx; m<<=1, page++, i++) {
- if (v & m) {
- count++;
- __free_pages_bootmem(page, 0);
- }
- }
- } else {
- i += BITS_PER_LONG;
- }
- pfn += BITS_PER_LONG;
- }
- total += count;
+ unsigned long start, end;
- /*
- * Now free the allocator bitmap itself, it's not
- * needed anymore:
- */
- page = virt_to_page(bdata->node_bootmem_map);
- count = 0;
- idx = (get_mapsize(bdata) + PAGE_SIZE-1) >> PAGE_SHIFT;
- for (i = 0; i < idx; i++, page++) {
- __free_pages_bootmem(page, 0);
- count++;
- }
- total += count;
- bdata->node_bootmem_map = NULL;
+ start = PFN_UP(physaddr);
+ end = PFN_DOWN(physaddr + size);
- return total;
+ mark_bootmem_node(pgdat->bdata, start, end, 0, 0);
}
-unsigned long __init init_bootmem_node(pg_data_t *pgdat, unsigned long freepfn,
- unsigned long startpfn, unsigned long endpfn)
-{
- return init_bootmem_core(pgdat, freepfn, startpfn, endpfn);
-}
-
-int __init reserve_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
- unsigned long size, int flags)
+/**
+ * free_bootmem - mark a page range as usable
+ * @addr: starting address of the range
+ * @size: size of the range in bytes
+ *
+ * Partial pages will be considered reserved and left as they are.
+ *
+ * The range must be contiguous but may span node boundaries.
+ */
+void __init free_bootmem(unsigned long addr, unsigned long size)
{
- int ret;
+ unsigned long start, end;
- ret = can_reserve_bootmem_core(pgdat->bdata, physaddr, size, flags);
- if (ret < 0)
- return -ENOMEM;
- reserve_bootmem_core(pgdat->bdata, physaddr, size, flags);
+ start = PFN_UP(addr);
+ end = PFN_DOWN(addr + size);
- return 0;
+ mark_bootmem(start, end, 0, 0);
}
-void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
- unsigned long size)
+/**
+ * reserve_bootmem_node - mark a page range as reserved
+ * @pgdat: node the range resides on
+ * @physaddr: starting address of the range
+ * @size: size of the range in bytes
+ * @flags: reservation flags (see linux/bootmem.h)
+ *
+ * Partial pages will be reserved.
+ *
+ * The range must reside completely on the specified node.
+ */
+int __init reserve_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
+ unsigned long size, int flags)
{
- free_bootmem_core(pgdat->bdata, physaddr, size);
-}
+ unsigned long start, end;
-unsigned long __init free_all_bootmem_node(pg_data_t *pgdat)
-{
- register_page_bootmem_info_node(pgdat);
- return free_all_bootmem_core(pgdat);
-}
+ start = PFN_DOWN(physaddr);
+ end = PFN_UP(physaddr + size);
-unsigned long __init init_bootmem(unsigned long start, unsigned long pages)
-{
- max_low_pfn = pages;
- min_low_pfn = start;
- return init_bootmem_core(NODE_DATA(0), start, 0, pages);
+ return mark_bootmem_node(pgdat->bdata, start, end, 1, flags);
}
#ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE
+/**
+ * reserve_bootmem - mark a page range as usable
+ * @addr: starting address of the range
+ * @size: size of the range in bytes
+ * @flags: reservation flags (see linux/bootmem.h)
+ *
+ * Partial pages will be reserved.
+ *
+ * The range must be contiguous but may span node boundaries.
+ */
int __init reserve_bootmem(unsigned long addr, unsigned long size,
int flags)
{
- bootmem_data_t *bdata;
- int ret;
+ unsigned long start, end;
- list_for_each_entry(bdata, &bdata_list, list) {
- ret = can_reserve_bootmem_core(bdata, addr, size, flags);
- if (ret < 0)
- return ret;
- }
- list_for_each_entry(bdata, &bdata_list, list)
- reserve_bootmem_core(bdata, addr, size, flags);
+ start = PFN_DOWN(addr);
+ end = PFN_UP(addr + size);
- return 0;
+ return mark_bootmem(start, end, 1, flags);
}
#endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */
-void __init free_bootmem(unsigned long addr, unsigned long size)
+static void * __init alloc_bootmem_core(struct bootmem_data *bdata,
+ unsigned long size, unsigned long align,
+ unsigned long goal, unsigned long limit)
{
- bootmem_data_t *bdata;
- list_for_each_entry(bdata, &bdata_list, list)
- free_bootmem_core(bdata, addr, size);
-}
+ unsigned long fallback = 0;
+ unsigned long min, max, start, sidx, midx, step;
-unsigned long __init free_all_bootmem(void)
-{
- return free_all_bootmem_core(NODE_DATA(0));
+ BUG_ON(!size);
+ BUG_ON(align & (align - 1));
+ BUG_ON(limit && goal + size > limit);
+
+ if (!bdata->node_bootmem_map)
+ return NULL;
+
+ bdebug("nid=%td size=%lx [%lu pages] align=%lx goal=%lx limit=%lx\n",
+ bdata - bootmem_node_data, size, PAGE_ALIGN(size) >> PAGE_SHIFT,
+ align, goal, limit);
+
+ min = bdata->node_min_pfn;
+ max = bdata->node_low_pfn;
+
+ goal >>= PAGE_SHIFT;
+ limit >>= PAGE_SHIFT;
+
+ if (limit && max > limit)
+ max = limit;
+ if (max <= min)
+ return NULL;
+
+ step = max(align >> PAGE_SHIFT, 1UL);
+
+ if (goal && min < goal && goal < max)
+ start = ALIGN(goal, step);
+ else
+ start = ALIGN(min, step);
+
+ sidx = start - bdata->node_min_pfn;;
+ midx = max - bdata->node_min_pfn;
+
+ if (bdata->hint_idx > sidx) {
+ /*
+ * Handle the valid case of sidx being zero and still
+ * catch the fallback below.
+ */
+ fallback = sidx + 1;
+ sidx = ALIGN(bdata->hint_idx, step);
+ }
+
+ while (1) {
+ int merge;
+ void *region;
+ unsigned long eidx, i, start_off, end_off;
+find_block:
+ sidx = find_next_zero_bit(bdata->node_bootmem_map, midx, sidx);
+ sidx = ALIGN(sidx, step);
+ eidx = sidx + PFN_UP(size);
+
+ if (sidx >= midx || eidx > midx)
+ break;
+
+ for (i = sidx; i < eidx; i++)
+ if (test_bit(i, bdata->node_bootmem_map)) {
+ sidx = ALIGN(i, step);
+ if (sidx == i)
+ sidx += step;
+ goto find_block;
+ }
+
+ if (bdata->last_end_off &&
+ PFN_DOWN(bdata->last_end_off) + 1 == sidx)
+ start_off = ALIGN(bdata->last_end_off, align);
+ else
+ start_off = PFN_PHYS(sidx);
+
+ merge = PFN_DOWN(start_off) < sidx;
+ end_off = start_off + size;
+
+ bdata->last_end_off = end_off;
+ bdata->hint_idx = PFN_UP(end_off);
+
+ /*
+ * Reserve the area now:
+ */
+ if (__reserve(bdata, PFN_DOWN(start_off) + merge,
+ PFN_UP(end_off), BOOTMEM_EXCLUSIVE))
+ BUG();
+
+ region = phys_to_virt(PFN_PHYS(bdata->node_min_pfn) +
+ start_off);
+ memset(region, 0, size);
+ return region;
+ }
+
+ if (fallback) {
+ sidx = ALIGN(fallback - 1, step);
+ fallback = 0;
+ goto find_block;
+ }
+
+ return NULL;
}
-void * __init __alloc_bootmem_nopanic(unsigned long size, unsigned long align,
- unsigned long goal)
+static void * __init ___alloc_bootmem_nopanic(unsigned long size,
+ unsigned long align,
+ unsigned long goal,
+ unsigned long limit)
{
bootmem_data_t *bdata;
- void *ptr;
+restart:
list_for_each_entry(bdata, &bdata_list, list) {
- ptr = __alloc_bootmem_core(bdata, size, align, goal, 0);
- if (ptr)
- return ptr;
+ void *region;
+
+ if (goal && bdata->node_low_pfn <= PFN_DOWN(goal))
+ continue;
+ if (limit && bdata->node_min_pfn >= PFN_DOWN(limit))
+ break;
+
+ region = alloc_bootmem_core(bdata, size, align, goal, limit);
+ if (region)
+ return region;
+ }
+
+ if (goal) {
+ goal = 0;
+ goto restart;
}
+
return NULL;
}
-void * __init __alloc_bootmem(unsigned long size, unsigned long align,
- unsigned long goal)
+/**
+ * __alloc_bootmem_nopanic - allocate boot memory without panicking
+ * @size: size of the request in bytes
+ * @align: alignment of the region
+ * @goal: preferred starting address of the region
+ *
+ * The goal is dropped if it can not be satisfied and the allocation will
+ * fall back to memory below @goal.
+ *
+ * Allocation may happen on any node in the system.
+ *
+ * Returns NULL on failure.
+ */
+void * __init __alloc_bootmem_nopanic(unsigned long size, unsigned long align,
+ unsigned long goal)
{
- void *mem = __alloc_bootmem_nopanic(size,align,goal);
+ return ___alloc_bootmem_nopanic(size, align, goal, 0);
+}
+
+static void * __init ___alloc_bootmem(unsigned long size, unsigned long align,
+ unsigned long goal, unsigned long limit)
+{
+ void *mem = ___alloc_bootmem_nopanic(size, align, goal, limit);
if (mem)
return mem;
return NULL;
}
+/**
+ * __alloc_bootmem - allocate boot memory
+ * @size: size of the request in bytes
+ * @align: alignment of the region
+ * @goal: preferred starting address of the region
+ *
+ * The goal is dropped if it can not be satisfied and the allocation will
+ * fall back to memory below @goal.
+ *
+ * Allocation may happen on any node in the system.
+ *
+ * The function panics if the request can not be satisfied.
+ */
+void * __init __alloc_bootmem(unsigned long size, unsigned long align,
+ unsigned long goal)
+{
+ return ___alloc_bootmem(size, align, goal, 0);
+}
-void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size,
- unsigned long align, unsigned long goal)
+static void * __init ___alloc_bootmem_node(bootmem_data_t *bdata,
+ unsigned long size, unsigned long align,
+ unsigned long goal, unsigned long limit)
{
void *ptr;
- ptr = __alloc_bootmem_core(pgdat->bdata, size, align, goal, 0);
+ ptr = alloc_bootmem_core(bdata, size, align, goal, limit);
if (ptr)
return ptr;
- return __alloc_bootmem(size, align, goal);
+ return ___alloc_bootmem(size, align, goal, limit);
+}
+
+/**
+ * __alloc_bootmem_node - allocate boot memory from a specific node
+ * @pgdat: node to allocate from
+ * @size: size of the request in bytes
+ * @align: alignment of the region
+ * @goal: preferred starting address of the region
+ *
+ * The goal is dropped if it can not be satisfied and the allocation will
+ * fall back to memory below @goal.
+ *
+ * Allocation may fall back to any node in the system if the specified node
+ * can not hold the requested memory.
+ *
+ * The function panics if the request can not be satisfied.
+ */
+void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size,
+ unsigned long align, unsigned long goal)
+{
+ return ___alloc_bootmem_node(pgdat->bdata, size, align, goal, 0);
}
#ifdef CONFIG_SPARSEMEM
+/**
+ * alloc_bootmem_section - allocate boot memory from a specific section
+ * @size: size of the request in bytes
+ * @section_nr: sparse map section to allocate from
+ *
+ * Return NULL on failure.
+ */
void * __init alloc_bootmem_section(unsigned long size,
unsigned long section_nr)
{
- void *ptr;
- unsigned long limit, goal, start_nr, end_nr, pfn;
- struct pglist_data *pgdat;
+ bootmem_data_t *bdata;
+ unsigned long pfn, goal, limit;
pfn = section_nr_to_pfn(section_nr);
- goal = PFN_PHYS(pfn);
- limit = PFN_PHYS(section_nr_to_pfn(section_nr + 1)) - 1;
- pgdat = NODE_DATA(early_pfn_to_nid(pfn));
- ptr = __alloc_bootmem_core(pgdat->bdata, size, SMP_CACHE_BYTES, goal,
- limit);
+ goal = pfn << PAGE_SHIFT;
+ limit = section_nr_to_pfn(section_nr + 1) << PAGE_SHIFT;
+ bdata = &bootmem_node_data[early_pfn_to_nid(pfn)];
- if (!ptr)
- return NULL;
+ return alloc_bootmem_core(bdata, size, SMP_CACHE_BYTES, goal, limit);
+}
+#endif
- start_nr = pfn_to_section_nr(PFN_DOWN(__pa(ptr)));
- end_nr = pfn_to_section_nr(PFN_DOWN(__pa(ptr) + size));
- if (start_nr != section_nr || end_nr != section_nr) {
- printk(KERN_WARNING "alloc_bootmem failed on section %ld.\n",
- section_nr);
- free_bootmem_core(pgdat->bdata, __pa(ptr), size);
- ptr = NULL;
- }
+void * __init __alloc_bootmem_node_nopanic(pg_data_t *pgdat, unsigned long size,
+ unsigned long align, unsigned long goal)
+{
+ void *ptr;
- return ptr;
+ ptr = alloc_bootmem_core(pgdat->bdata, size, align, goal, 0);
+ if (ptr)
+ return ptr;
+
+ return __alloc_bootmem_nopanic(size, align, goal);
}
-#endif
#ifndef ARCH_LOW_ADDRESS_LIMIT
#define ARCH_LOW_ADDRESS_LIMIT 0xffffffffUL
#endif
+/**
+ * __alloc_bootmem_low - allocate low boot memory
+ * @size: size of the request in bytes
+ * @align: alignment of the region
+ * @goal: preferred starting address of the region
+ *
+ * The goal is dropped if it can not be satisfied and the allocation will
+ * fall back to memory below @goal.
+ *
+ * Allocation may happen on any node in the system.
+ *
+ * The function panics if the request can not be satisfied.
+ */
void * __init __alloc_bootmem_low(unsigned long size, unsigned long align,
unsigned long goal)
{
- bootmem_data_t *bdata;
- void *ptr;
-
- list_for_each_entry(bdata, &bdata_list, list) {
- ptr = __alloc_bootmem_core(bdata, size, align, goal,
- ARCH_LOW_ADDRESS_LIMIT);
- if (ptr)
- return ptr;
- }
-
- /*
- * Whoops, we cannot satisfy the allocation request.
- */
- printk(KERN_ALERT "low bootmem alloc of %lu bytes failed!\n", size);
- panic("Out of low memory");
- return NULL;
+ return ___alloc_bootmem(size, align, goal, ARCH_LOW_ADDRESS_LIMIT);
}
+/**
+ * __alloc_bootmem_low_node - allocate low boot memory from a specific node
+ * @pgdat: node to allocate from
+ * @size: size of the request in bytes
+ * @align: alignment of the region
+ * @goal: preferred starting address of the region
+ *
+ * The goal is dropped if it can not be satisfied and the allocation will
+ * fall back to memory below @goal.
+ *
+ * Allocation may fall back to any node in the system if the specified node
+ * can not hold the requested memory.
+ *
+ * The function panics if the request can not be satisfied.
+ */
void * __init __alloc_bootmem_low_node(pg_data_t *pgdat, unsigned long size,
unsigned long align, unsigned long goal)
{
- return __alloc_bootmem_core(pgdat->bdata, size, align, goal,
- ARCH_LOW_ADDRESS_LIMIT);
+ return ___alloc_bootmem_node(pgdat->bdata, size, align,
+ goal, ARCH_LOW_ADDRESS_LIMIT);
}
#include <asm/mman.h>
-static ssize_t
-generic_file_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
- loff_t offset, unsigned long nr_segs);
/*
* Shared mappings implemented 30.11.1994. It's not fully working yet,
mapping = filp->f_mapping;
inode = mapping->host;
- retval = 0;
if (!count)
goto out; /* skip atime */
size = i_size_read(inode);
if (pos < size) {
- retval = generic_file_direct_IO(READ, iocb,
- iov, pos, nr_segs);
+ retval = filemap_write_and_wait(mapping);
+ if (!retval) {
+ retval = mapping->a_ops->direct_IO(READ, iocb,
+ iov, pos, nr_segs);
+ }
if (retval > 0)
*ppos = pos + retval;
- }
- if (likely(retval != 0)) {
- file_accessed(filp);
- goto out;
+ if (retval) {
+ file_accessed(filp);
+ goto out;
+ }
}
}
- retval = 0;
- if (count) {
- for (seg = 0; seg < nr_segs; seg++) {
- read_descriptor_t desc;
+ for (seg = 0; seg < nr_segs; seg++) {
+ read_descriptor_t desc;
- desc.written = 0;
- desc.arg.buf = iov[seg].iov_base;
- desc.count = iov[seg].iov_len;
- if (desc.count == 0)
- continue;
- desc.error = 0;
- do_generic_file_read(filp,ppos,&desc,file_read_actor);
- retval += desc.written;
- if (desc.error) {
- retval = retval ?: desc.error;
- break;
- }
- if (desc.count > 0)
- break;
+ desc.written = 0;
+ desc.arg.buf = iov[seg].iov_base;
+ desc.count = iov[seg].iov_len;
+ if (desc.count == 0)
+ continue;
+ desc.error = 0;
+ do_generic_file_read(filp, ppos, &desc, file_read_actor);
+ retval += desc.written;
+ if (desc.error) {
+ retval = retval ?: desc.error;
+ break;
}
+ if (desc.count > 0)
+ break;
}
out:
return retval;
struct address_space *mapping = file->f_mapping;
struct inode *inode = mapping->host;
ssize_t written;
+ size_t write_len;
+ pgoff_t end;
if (count != ocount)
*nr_segs = iov_shorten((struct iovec *)iov, *nr_segs, count);
- written = generic_file_direct_IO(WRITE, iocb, iov, pos, *nr_segs);
+ /*
+ * Unmap all mmappings of the file up-front.
+ *
+ * This will cause any pte dirty bits to be propagated into the
+ * pageframes for the subsequent filemap_write_and_wait().
+ */
+ write_len = iov_length(iov, *nr_segs);
+ end = (pos + write_len - 1) >> PAGE_CACHE_SHIFT;
+ if (mapping_mapped(mapping))
+ unmap_mapping_range(mapping, pos, write_len, 0);
+
+ written = filemap_write_and_wait(mapping);
+ if (written)
+ goto out;
+
+ /*
+ * After a write we want buffered reads to be sure to go to disk to get
+ * the new data. We invalidate clean cached page from the region we're
+ * about to write. We do this *before* the write so that we can return
+ * -EIO without clobbering -EIOCBQUEUED from ->direct_IO().
+ */
+ if (mapping->nrpages) {
+ written = invalidate_inode_pages2_range(mapping,
+ pos >> PAGE_CACHE_SHIFT, end);
+ if (written)
+ goto out;
+ }
+
+ written = mapping->a_ops->direct_IO(WRITE, iocb, iov, pos, *nr_segs);
+
+ /*
+ * Finally, try again to invalidate clean pages which might have been
+ * cached by non-direct readahead, or faulted in by get_user_pages()
+ * if the source of the write was an mmap'ed region of the file
+ * we're writing. Either one is a pretty crazy thing to do,
+ * so we don't support it 100%. If this invalidation
+ * fails, tough, the write still worked...
+ */
+ if (mapping->nrpages) {
+ invalidate_inode_pages2_range(mapping,
+ pos >> PAGE_CACHE_SHIFT, end);
+ }
+
if (written > 0) {
loff_t end = pos + written;
if (end > i_size_read(inode) && !S_ISBLK(inode->i_mode)) {
* i_mutex is held, which protects generic_osync_inode() from
* livelocking. AIO O_DIRECT ops attempt to sync metadata here.
*/
+out:
if ((written >= 0 || written == -EIOCBQUEUED) &&
((file->f_flags & O_SYNC) || IS_SYNC(inode))) {
int err = generic_osync_inode(inode, mapping, OSYNC_METADATA);
}
EXPORT_SYMBOL(generic_file_aio_write);
-/*
- * Called under i_mutex for writes to S_ISREG files. Returns -EIO if something
- * went wrong during pagecache shootdown.
- */
-static ssize_t
-generic_file_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
- loff_t offset, unsigned long nr_segs)
-{
- struct file *file = iocb->ki_filp;
- struct address_space *mapping = file->f_mapping;
- ssize_t retval;
- size_t write_len;
- pgoff_t end = 0; /* silence gcc */
-
- /*
- * If it's a write, unmap all mmappings of the file up-front. This
- * will cause any pte dirty bits to be propagated into the pageframes
- * for the subsequent filemap_write_and_wait().
- */
- if (rw == WRITE) {
- write_len = iov_length(iov, nr_segs);
- end = (offset + write_len - 1) >> PAGE_CACHE_SHIFT;
- if (mapping_mapped(mapping))
- unmap_mapping_range(mapping, offset, write_len, 0);
- }
-
- retval = filemap_write_and_wait(mapping);
- if (retval)
- goto out;
-
- /*
- * After a write we want buffered reads to be sure to go to disk to get
- * the new data. We invalidate clean cached page from the region we're
- * about to write. We do this *before* the write so that we can return
- * -EIO without clobbering -EIOCBQUEUED from ->direct_IO().
- */
- if (rw == WRITE && mapping->nrpages) {
- retval = invalidate_inode_pages2_range(mapping,
- offset >> PAGE_CACHE_SHIFT, end);
- if (retval)
- goto out;
- }
-
- retval = mapping->a_ops->direct_IO(rw, iocb, iov, offset, nr_segs);
-
- /*
- * Finally, try again to invalidate clean pages which might have been
- * cached by non-direct readahead, or faulted in by get_user_pages()
- * if the source of the write was an mmap'ed region of the file
- * we're writing. Either one is a pretty crazy thing to do,
- * so we don't support it 100%. If this invalidation
- * fails, tough, the write still worked...
- */
- if (rw == WRITE && mapping->nrpages) {
- invalidate_inode_pages2_range(mapping, offset >> PAGE_CACHE_SHIFT, end);
- }
-out:
- return retval;
-}
-
/**
* try_to_release_page() - release old fs-specific metadata on a page
*
#include <linux/mempolicy.h>
#include <linux/cpuset.h>
#include <linux/mutex.h>
+#include <linux/bootmem.h>
+#include <linux/sysfs.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include "internal.h"
const unsigned long hugetlb_zero = 0, hugetlb_infinity = ~0UL;
-static unsigned long nr_huge_pages, free_huge_pages, resv_huge_pages;
-static unsigned long surplus_huge_pages;
-static unsigned long nr_overcommit_huge_pages;
-unsigned long max_huge_pages;
-unsigned long sysctl_overcommit_huge_pages;
-static struct list_head hugepage_freelists[MAX_NUMNODES];
-static unsigned int nr_huge_pages_node[MAX_NUMNODES];
-static unsigned int free_huge_pages_node[MAX_NUMNODES];
-static unsigned int surplus_huge_pages_node[MAX_NUMNODES];
static gfp_t htlb_alloc_mask = GFP_HIGHUSER;
unsigned long hugepages_treat_as_movable;
-static int hugetlb_next_nid;
+
+static int max_hstate;
+unsigned int default_hstate_idx;
+struct hstate hstates[HUGE_MAX_HSTATE];
+
+__initdata LIST_HEAD(huge_boot_pages);
+
+/* for command line parsing */
+static struct hstate * __initdata parsed_hstate;
+static unsigned long __initdata default_hstate_max_huge_pages;
+static unsigned long __initdata default_hstate_size;
+
+#define for_each_hstate(h) \
+ for ((h) = hstates; (h) < &hstates[max_hstate]; (h)++)
/*
* Protects updates to hugepage_freelists, nr_huge_pages, and free_huge_pages
*/
static DEFINE_SPINLOCK(hugetlb_lock);
-static void clear_huge_page(struct page *page, unsigned long addr)
+/*
+ * Region tracking -- allows tracking of reservations and instantiated pages
+ * across the pages in a mapping.
+ *
+ * The region data structures are protected by a combination of the mmap_sem
+ * and the hugetlb_instantion_mutex. To access or modify a region the caller
+ * must either hold the mmap_sem for write, or the mmap_sem for read and
+ * the hugetlb_instantiation mutex:
+ *
+ * down_write(&mm->mmap_sem);
+ * or
+ * down_read(&mm->mmap_sem);
+ * mutex_lock(&hugetlb_instantiation_mutex);
+ */
+struct file_region {
+ struct list_head link;
+ long from;
+ long to;
+};
+
+static long region_add(struct list_head *head, long f, long t)
+{
+ struct file_region *rg, *nrg, *trg;
+
+ /* Locate the region we are either in or before. */
+ list_for_each_entry(rg, head, link)
+ if (f <= rg->to)
+ break;
+
+ /* Round our left edge to the current segment if it encloses us. */
+ if (f > rg->from)
+ f = rg->from;
+
+ /* Check for and consume any regions we now overlap with. */
+ nrg = rg;
+ list_for_each_entry_safe(rg, trg, rg->link.prev, link) {
+ if (&rg->link == head)
+ break;
+ if (rg->from > t)
+ break;
+
+ /* If this area reaches higher then extend our area to
+ * include it completely. If this is not the first area
+ * which we intend to reuse, free it. */
+ if (rg->to > t)
+ t = rg->to;
+ if (rg != nrg) {
+ list_del(&rg->link);
+ kfree(rg);
+ }
+ }
+ nrg->from = f;
+ nrg->to = t;
+ return 0;
+}
+
+static long region_chg(struct list_head *head, long f, long t)
+{
+ struct file_region *rg, *nrg;
+ long chg = 0;
+
+ /* Locate the region we are before or in. */
+ list_for_each_entry(rg, head, link)
+ if (f <= rg->to)
+ break;
+
+ /* If we are below the current region then a new region is required.
+ * Subtle, allocate a new region at the position but make it zero
+ * size such that we can guarantee to record the reservation. */
+ if (&rg->link == head || t < rg->from) {
+ nrg = kmalloc(sizeof(*nrg), GFP_KERNEL);
+ if (!nrg)
+ return -ENOMEM;
+ nrg->from = f;
+ nrg->to = f;
+ INIT_LIST_HEAD(&nrg->link);
+ list_add(&nrg->link, rg->link.prev);
+
+ return t - f;
+ }
+
+ /* Round our left edge to the current segment if it encloses us. */
+ if (f > rg->from)
+ f = rg->from;
+ chg = t - f;
+
+ /* Check for and consume any regions we now overlap with. */
+ list_for_each_entry(rg, rg->link.prev, link) {
+ if (&rg->link == head)
+ break;
+ if (rg->from > t)
+ return chg;
+
+ /* We overlap with this area, if it extends futher than
+ * us then we must extend ourselves. Account for its
+ * existing reservation. */
+ if (rg->to > t) {
+ chg += rg->to - t;
+ t = rg->to;
+ }
+ chg -= rg->to - rg->from;
+ }
+ return chg;
+}
+
+static long region_truncate(struct list_head *head, long end)
+{
+ struct file_region *rg, *trg;
+ long chg = 0;
+
+ /* Locate the region we are either in or before. */
+ list_for_each_entry(rg, head, link)
+ if (end <= rg->to)
+ break;
+ if (&rg->link == head)
+ return 0;
+
+ /* If we are in the middle of a region then adjust it. */
+ if (end > rg->from) {
+ chg = rg->to - end;
+ rg->to = end;
+ rg = list_entry(rg->link.next, typeof(*rg), link);
+ }
+
+ /* Drop any remaining regions. */
+ list_for_each_entry_safe(rg, trg, rg->link.prev, link) {
+ if (&rg->link == head)
+ break;
+ chg += rg->to - rg->from;
+ list_del(&rg->link);
+ kfree(rg);
+ }
+ return chg;
+}
+
+static long region_count(struct list_head *head, long f, long t)
+{
+ struct file_region *rg;
+ long chg = 0;
+
+ /* Locate each segment we overlap with, and count that overlap. */
+ list_for_each_entry(rg, head, link) {
+ int seg_from;
+ int seg_to;
+
+ if (rg->to <= f)
+ continue;
+ if (rg->from >= t)
+ break;
+
+ seg_from = max(rg->from, f);
+ seg_to = min(rg->to, t);
+
+ chg += seg_to - seg_from;
+ }
+
+ return chg;
+}
+
+/*
+ * Convert the address within this vma to the page offset within
+ * the mapping, in pagecache page units; huge pages here.
+ */
+static pgoff_t vma_hugecache_offset(struct hstate *h,
+ struct vm_area_struct *vma, unsigned long address)
+{
+ return ((address - vma->vm_start) >> huge_page_shift(h)) +
+ (vma->vm_pgoff >> huge_page_order(h));
+}
+
+/*
+ * Flags for MAP_PRIVATE reservations. These are stored in the bottom
+ * bits of the reservation map pointer, which are always clear due to
+ * alignment.
+ */
+#define HPAGE_RESV_OWNER (1UL << 0)
+#define HPAGE_RESV_UNMAPPED (1UL << 1)
+#define HPAGE_RESV_MASK (HPAGE_RESV_OWNER | HPAGE_RESV_UNMAPPED)
+
+/*
+ * These helpers are used to track how many pages are reserved for
+ * faults in a MAP_PRIVATE mapping. Only the process that called mmap()
+ * is guaranteed to have their future faults succeed.
+ *
+ * With the exception of reset_vma_resv_huge_pages() which is called at fork(),
+ * the reserve counters are updated with the hugetlb_lock held. It is safe
+ * to reset the VMA at fork() time as it is not in use yet and there is no
+ * chance of the global counters getting corrupted as a result of the values.
+ *
+ * The private mapping reservation is represented in a subtly different
+ * manner to a shared mapping. A shared mapping has a region map associated
+ * with the underlying file, this region map represents the backing file
+ * pages which have ever had a reservation assigned which this persists even
+ * after the page is instantiated. A private mapping has a region map
+ * associated with the original mmap which is attached to all VMAs which
+ * reference it, this region map represents those offsets which have consumed
+ * reservation ie. where pages have been instantiated.
+ */
+static unsigned long get_vma_private_data(struct vm_area_struct *vma)
+{
+ return (unsigned long)vma->vm_private_data;
+}
+
+static void set_vma_private_data(struct vm_area_struct *vma,
+ unsigned long value)
+{
+ vma->vm_private_data = (void *)value;
+}
+
+struct resv_map {
+ struct kref refs;
+ struct list_head regions;
+};
+
+struct resv_map *resv_map_alloc(void)
+{
+ struct resv_map *resv_map = kmalloc(sizeof(*resv_map), GFP_KERNEL);
+ if (!resv_map)
+ return NULL;
+
+ kref_init(&resv_map->refs);
+ INIT_LIST_HEAD(&resv_map->regions);
+
+ return resv_map;
+}
+
+void resv_map_release(struct kref *ref)
+{
+ struct resv_map *resv_map = container_of(ref, struct resv_map, refs);
+
+ /* Clear out any active regions before we release the map. */
+ region_truncate(&resv_map->regions, 0);
+ kfree(resv_map);
+}
+
+static struct resv_map *vma_resv_map(struct vm_area_struct *vma)
+{
+ VM_BUG_ON(!is_vm_hugetlb_page(vma));
+ if (!(vma->vm_flags & VM_SHARED))
+ return (struct resv_map *)(get_vma_private_data(vma) &
+ ~HPAGE_RESV_MASK);
+ return 0;
+}
+
+static void set_vma_resv_map(struct vm_area_struct *vma, struct resv_map *map)
+{
+ VM_BUG_ON(!is_vm_hugetlb_page(vma));
+ VM_BUG_ON(vma->vm_flags & VM_SHARED);
+
+ set_vma_private_data(vma, (get_vma_private_data(vma) &
+ HPAGE_RESV_MASK) | (unsigned long)map);
+}
+
+static void set_vma_resv_flags(struct vm_area_struct *vma, unsigned long flags)
+{
+ VM_BUG_ON(!is_vm_hugetlb_page(vma));
+ VM_BUG_ON(vma->vm_flags & VM_SHARED);
+
+ set_vma_private_data(vma, get_vma_private_data(vma) | flags);
+}
+
+static int is_vma_resv_set(struct vm_area_struct *vma, unsigned long flag)
+{
+ VM_BUG_ON(!is_vm_hugetlb_page(vma));
+
+ return (get_vma_private_data(vma) & flag) != 0;
+}
+
+/* Decrement the reserved pages in the hugepage pool by one */
+static void decrement_hugepage_resv_vma(struct hstate *h,
+ struct vm_area_struct *vma)
+{
+ if (vma->vm_flags & VM_NORESERVE)
+ return;
+
+ if (vma->vm_flags & VM_SHARED) {
+ /* Shared mappings always use reserves */
+ h->resv_huge_pages--;
+ } else if (is_vma_resv_set(vma, HPAGE_RESV_OWNER)) {
+ /*
+ * Only the process that called mmap() has reserves for
+ * private mappings.
+ */
+ h->resv_huge_pages--;
+ }
+}
+
+/* Reset counters to 0 and clear all HPAGE_RESV_* flags */
+void reset_vma_resv_huge_pages(struct vm_area_struct *vma)
+{
+ VM_BUG_ON(!is_vm_hugetlb_page(vma));
+ if (!(vma->vm_flags & VM_SHARED))
+ vma->vm_private_data = (void *)0;
+}
+
+/* Returns true if the VMA has associated reserve pages */
+static int vma_has_reserves(struct vm_area_struct *vma)
+{
+ if (vma->vm_flags & VM_SHARED)
+ return 1;
+ if (is_vma_resv_set(vma, HPAGE_RESV_OWNER))
+ return 1;
+ return 0;
+}
+
+static void clear_huge_page(struct page *page,
+ unsigned long addr, unsigned long sz)
{
int i;
might_sleep();
- for (i = 0; i < (HPAGE_SIZE/PAGE_SIZE); i++) {
+ for (i = 0; i < sz/PAGE_SIZE; i++) {
cond_resched();
clear_user_highpage(page + i, addr + i * PAGE_SIZE);
}
unsigned long addr, struct vm_area_struct *vma)
{
int i;
+ struct hstate *h = hstate_vma(vma);
might_sleep();
- for (i = 0; i < HPAGE_SIZE/PAGE_SIZE; i++) {
+ for (i = 0; i < pages_per_huge_page(h); i++) {
cond_resched();
copy_user_highpage(dst + i, src + i, addr + i*PAGE_SIZE, vma);
}
}
-static void enqueue_huge_page(struct page *page)
+static void enqueue_huge_page(struct hstate *h, struct page *page)
{
int nid = page_to_nid(page);
- list_add(&page->lru, &hugepage_freelists[nid]);
- free_huge_pages++;
- free_huge_pages_node[nid]++;
+ list_add(&page->lru, &h->hugepage_freelists[nid]);
+ h->free_huge_pages++;
+ h->free_huge_pages_node[nid]++;
}
-static struct page *dequeue_huge_page(void)
+static struct page *dequeue_huge_page(struct hstate *h)
{
int nid;
struct page *page = NULL;
for (nid = 0; nid < MAX_NUMNODES; ++nid) {
- if (!list_empty(&hugepage_freelists[nid])) {
- page = list_entry(hugepage_freelists[nid].next,
+ if (!list_empty(&h->hugepage_freelists[nid])) {
+ page = list_entry(h->hugepage_freelists[nid].next,
struct page, lru);
list_del(&page->lru);
- free_huge_pages--;
- free_huge_pages_node[nid]--;
+ h->free_huge_pages--;
+ h->free_huge_pages_node[nid]--;
break;
}
}
return page;
}
-static struct page *dequeue_huge_page_vma(struct vm_area_struct *vma,
- unsigned long address)
+static struct page *dequeue_huge_page_vma(struct hstate *h,
+ struct vm_area_struct *vma,
+ unsigned long address, int avoid_reserve)
{
int nid;
struct page *page = NULL;
struct zone *zone;
struct zoneref *z;
+ /*
+ * A child process with MAP_PRIVATE mappings created by their parent
+ * have no page reserves. This check ensures that reservations are
+ * not "stolen". The child may still get SIGKILLed
+ */
+ if (!vma_has_reserves(vma) &&
+ h->free_huge_pages - h->resv_huge_pages == 0)
+ return NULL;
+
+ /* If reserves cannot be used, ensure enough pages are in the pool */
+ if (avoid_reserve && h->free_huge_pages - h->resv_huge_pages == 0)
+ return NULL;
+
for_each_zone_zonelist_nodemask(zone, z, zonelist,
MAX_NR_ZONES - 1, nodemask) {
nid = zone_to_nid(zone);
if (cpuset_zone_allowed_softwall(zone, htlb_alloc_mask) &&
- !list_empty(&hugepage_freelists[nid])) {
- page = list_entry(hugepage_freelists[nid].next,
+ !list_empty(&h->hugepage_freelists[nid])) {
+ page = list_entry(h->hugepage_freelists[nid].next,
struct page, lru);
list_del(&page->lru);
- free_huge_pages--;
- free_huge_pages_node[nid]--;
- if (vma && vma->vm_flags & VM_MAYSHARE)
- resv_huge_pages--;
+ h->free_huge_pages--;
+ h->free_huge_pages_node[nid]--;
+
+ if (!avoid_reserve)
+ decrement_hugepage_resv_vma(h, vma);
+
break;
}
}
return page;
}
-static void update_and_free_page(struct page *page)
+static void update_and_free_page(struct hstate *h, struct page *page)
{
int i;
- nr_huge_pages--;
- nr_huge_pages_node[page_to_nid(page)]--;
- for (i = 0; i < (HPAGE_SIZE / PAGE_SIZE); i++) {
+
+ h->nr_huge_pages--;
+ h->nr_huge_pages_node[page_to_nid(page)]--;
+ for (i = 0; i < pages_per_huge_page(h); i++) {
page[i].flags &= ~(1 << PG_locked | 1 << PG_error | 1 << PG_referenced |
1 << PG_dirty | 1 << PG_active | 1 << PG_reserved |
1 << PG_private | 1<< PG_writeback);
set_compound_page_dtor(page, NULL);
set_page_refcounted(page);
arch_release_hugepage(page);
- __free_pages(page, HUGETLB_PAGE_ORDER);
+ __free_pages(page, huge_page_order(h));
+}
+
+struct hstate *size_to_hstate(unsigned long size)
+{
+ struct hstate *h;
+
+ for_each_hstate(h) {
+ if (huge_page_size(h) == size)
+ return h;
+ }
+ return NULL;
}
static void free_huge_page(struct page *page)
{
+ /*
+ * Can't pass hstate in here because it is called from the
+ * compound page destructor.
+ */
+ struct hstate *h = page_hstate(page);
int nid = page_to_nid(page);
struct address_space *mapping;
INIT_LIST_HEAD(&page->lru);
spin_lock(&hugetlb_lock);
- if (surplus_huge_pages_node[nid]) {
- update_and_free_page(page);
- surplus_huge_pages--;
- surplus_huge_pages_node[nid]--;
+ if (h->surplus_huge_pages_node[nid] && huge_page_order(h) < MAX_ORDER) {
+ update_and_free_page(h, page);
+ h->surplus_huge_pages--;
+ h->surplus_huge_pages_node[nid]--;
} else {
- enqueue_huge_page(page);
+ enqueue_huge_page(h, page);
}
spin_unlock(&hugetlb_lock);
if (mapping)
* balanced by operating on them in a round-robin fashion.
* Returns 1 if an adjustment was made.
*/
-static int adjust_pool_surplus(int delta)
+static int adjust_pool_surplus(struct hstate *h, int delta)
{
static int prev_nid;
int nid = prev_nid;
nid = first_node(node_online_map);
/* To shrink on this node, there must be a surplus page */
- if (delta < 0 && !surplus_huge_pages_node[nid])
+ if (delta < 0 && !h->surplus_huge_pages_node[nid])
continue;
/* Surplus cannot exceed the total number of pages */
- if (delta > 0 && surplus_huge_pages_node[nid] >=
- nr_huge_pages_node[nid])
+ if (delta > 0 && h->surplus_huge_pages_node[nid] >=
+ h->nr_huge_pages_node[nid])
continue;
- surplus_huge_pages += delta;
- surplus_huge_pages_node[nid] += delta;
+ h->surplus_huge_pages += delta;
+ h->surplus_huge_pages_node[nid] += delta;
ret = 1;
break;
} while (nid != prev_nid);
return ret;
}
-static struct page *alloc_fresh_huge_page_node(int nid)
+static void prep_new_huge_page(struct hstate *h, struct page *page, int nid)
+{
+ set_compound_page_dtor(page, free_huge_page);
+ spin_lock(&hugetlb_lock);
+ h->nr_huge_pages++;
+ h->nr_huge_pages_node[nid]++;
+ spin_unlock(&hugetlb_lock);
+ put_page(page); /* free it into the hugepage allocator */
+}
+
+static struct page *alloc_fresh_huge_page_node(struct hstate *h, int nid)
{
struct page *page;
+ if (h->order >= MAX_ORDER)
+ return NULL;
+
page = alloc_pages_node(nid,
htlb_alloc_mask|__GFP_COMP|__GFP_THISNODE|
__GFP_REPEAT|__GFP_NOWARN,
- HUGETLB_PAGE_ORDER);
+ huge_page_order(h));
if (page) {
if (arch_prepare_hugepage(page)) {
__free_pages(page, HUGETLB_PAGE_ORDER);
return NULL;
}
- set_compound_page_dtor(page, free_huge_page);
- spin_lock(&hugetlb_lock);
- nr_huge_pages++;
- nr_huge_pages_node[nid]++;
- spin_unlock(&hugetlb_lock);
- put_page(page); /* free it into the hugepage allocator */
+ prep_new_huge_page(h, page, nid);
}
return page;
}
-static int alloc_fresh_huge_page(void)
+/*
+ * Use a helper variable to find the next node and then
+ * copy it back to hugetlb_next_nid afterwards:
+ * otherwise there's a window in which a racer might
+ * pass invalid nid MAX_NUMNODES to alloc_pages_node.
+ * But we don't need to use a spin_lock here: it really
+ * doesn't matter if occasionally a racer chooses the
+ * same nid as we do. Move nid forward in the mask even
+ * if we just successfully allocated a hugepage so that
+ * the next caller gets hugepages on the next node.
+ */
+static int hstate_next_node(struct hstate *h)
+{
+ int next_nid;
+ next_nid = next_node(h->hugetlb_next_nid, node_online_map);
+ if (next_nid == MAX_NUMNODES)
+ next_nid = first_node(node_online_map);
+ h->hugetlb_next_nid = next_nid;
+ return next_nid;
+}
+
+static int alloc_fresh_huge_page(struct hstate *h)
{
struct page *page;
int start_nid;
int next_nid;
int ret = 0;
- start_nid = hugetlb_next_nid;
+ start_nid = h->hugetlb_next_nid;
do {
- page = alloc_fresh_huge_page_node(hugetlb_next_nid);
+ page = alloc_fresh_huge_page_node(h, h->hugetlb_next_nid);
if (page)
ret = 1;
- /*
- * Use a helper variable to find the next node and then
- * copy it back to hugetlb_next_nid afterwards:
- * otherwise there's a window in which a racer might
- * pass invalid nid MAX_NUMNODES to alloc_pages_node.
- * But we don't need to use a spin_lock here: it really
- * doesn't matter if occasionally a racer chooses the
- * same nid as we do. Move nid forward in the mask even
- * if we just successfully allocated a hugepage so that
- * the next caller gets hugepages on the next node.
- */
- next_nid = next_node(hugetlb_next_nid, node_online_map);
- if (next_nid == MAX_NUMNODES)
- next_nid = first_node(node_online_map);
- hugetlb_next_nid = next_nid;
- } while (!page && hugetlb_next_nid != start_nid);
+ next_nid = hstate_next_node(h);
+ } while (!page && h->hugetlb_next_nid != start_nid);
if (ret)
count_vm_event(HTLB_BUDDY_PGALLOC);
return ret;
}
-static struct page *alloc_buddy_huge_page(struct vm_area_struct *vma,
- unsigned long address)
+static struct page *alloc_buddy_huge_page(struct hstate *h,
+ struct vm_area_struct *vma, unsigned long address)
{
struct page *page;
unsigned int nid;
+ if (h->order >= MAX_ORDER)
+ return NULL;
+
/*
* Assume we will successfully allocate the surplus page to
* prevent racing processes from causing the surplus to exceed
* per-node value is checked there.
*/
spin_lock(&hugetlb_lock);
- if (surplus_huge_pages >= nr_overcommit_huge_pages) {
+ if (h->surplus_huge_pages >= h->nr_overcommit_huge_pages) {
spin_unlock(&hugetlb_lock);
return NULL;
} else {
- nr_huge_pages++;
- surplus_huge_pages++;
+ h->nr_huge_pages++;
+ h->surplus_huge_pages++;
}
spin_unlock(&hugetlb_lock);
page = alloc_pages(htlb_alloc_mask|__GFP_COMP|
__GFP_REPEAT|__GFP_NOWARN,
- HUGETLB_PAGE_ORDER);
+ huge_page_order(h));
spin_lock(&hugetlb_lock);
if (page) {
/*
* We incremented the global counters already
*/
- nr_huge_pages_node[nid]++;
- surplus_huge_pages_node[nid]++;
+ h->nr_huge_pages_node[nid]++;
+ h->surplus_huge_pages_node[nid]++;
__count_vm_event(HTLB_BUDDY_PGALLOC);
} else {
- nr_huge_pages--;
- surplus_huge_pages--;
+ h->nr_huge_pages--;
+ h->surplus_huge_pages--;
__count_vm_event(HTLB_BUDDY_PGALLOC_FAIL);
}
spin_unlock(&hugetlb_lock);
* Increase the hugetlb pool such that it can accomodate a reservation
* of size 'delta'.
*/
-static int gather_surplus_pages(int delta)
+static int gather_surplus_pages(struct hstate *h, int delta)
{
struct list_head surplus_list;
struct page *page, *tmp;
int ret, i;
int needed, allocated;
- needed = (resv_huge_pages + delta) - free_huge_pages;
+ needed = (h->resv_huge_pages + delta) - h->free_huge_pages;
if (needed <= 0) {
- resv_huge_pages += delta;
+ h->resv_huge_pages += delta;
return 0;
}
retry:
spin_unlock(&hugetlb_lock);
for (i = 0; i < needed; i++) {
- page = alloc_buddy_huge_page(NULL, 0);
+ page = alloc_buddy_huge_page(h, NULL, 0);
if (!page) {
/*
* We were not able to allocate enough pages to
* because either resv_huge_pages or free_huge_pages may have changed.
*/
spin_lock(&hugetlb_lock);
- needed = (resv_huge_pages + delta) - (free_huge_pages + allocated);
+ needed = (h->resv_huge_pages + delta) -
+ (h->free_huge_pages + allocated);
if (needed > 0)
goto retry;
* before they are reserved.
*/
needed += allocated;
- resv_huge_pages += delta;
+ h->resv_huge_pages += delta;
ret = 0;
free:
/* Free the needed pages to the hugetlb pool */
if ((--needed) < 0)
break;
list_del(&page->lru);
- enqueue_huge_page(page);
+ enqueue_huge_page(h, page);
}
/* Free unnecessary surplus pages to the buddy allocator */
* allocated to satisfy the reservation must be explicitly freed if they were
* never used.
*/
-static void return_unused_surplus_pages(unsigned long unused_resv_pages)
+static void return_unused_surplus_pages(struct hstate *h,
+ unsigned long unused_resv_pages)
{
static int nid = -1;
struct page *page;
unsigned long remaining_iterations = num_online_nodes();
/* Uncommit the reservation */
- resv_huge_pages -= unused_resv_pages;
+ h->resv_huge_pages -= unused_resv_pages;
- nr_pages = min(unused_resv_pages, surplus_huge_pages);
+ /* Cannot return gigantic pages currently */
+ if (h->order >= MAX_ORDER)
+ return;
+
+ nr_pages = min(unused_resv_pages, h->surplus_huge_pages);
while (remaining_iterations-- && nr_pages) {
nid = next_node(nid, node_online_map);
if (nid == MAX_NUMNODES)
nid = first_node(node_online_map);
- if (!surplus_huge_pages_node[nid])
+ if (!h->surplus_huge_pages_node[nid])
continue;
- if (!list_empty(&hugepage_freelists[nid])) {
- page = list_entry(hugepage_freelists[nid].next,
+ if (!list_empty(&h->hugepage_freelists[nid])) {
+ page = list_entry(h->hugepage_freelists[nid].next,
struct page, lru);
list_del(&page->lru);
- update_and_free_page(page);
- free_huge_pages--;
- free_huge_pages_node[nid]--;
- surplus_huge_pages--;
- surplus_huge_pages_node[nid]--;
+ update_and_free_page(h, page);
+ h->free_huge_pages--;
+ h->free_huge_pages_node[nid]--;
+ h->surplus_huge_pages--;
+ h->surplus_huge_pages_node[nid]--;
nr_pages--;
remaining_iterations = num_online_nodes();
}
}
}
+/*
+ * Determine if the huge page at addr within the vma has an associated
+ * reservation. Where it does not we will need to logically increase
+ * reservation and actually increase quota before an allocation can occur.
+ * Where any new reservation would be required the reservation change is
+ * prepared, but not committed. Once the page has been quota'd allocated
+ * an instantiated the change should be committed via vma_commit_reservation.
+ * No action is required on failure.
+ */
+static int vma_needs_reservation(struct hstate *h,
+ struct vm_area_struct *vma, unsigned long addr)
+{
+ struct address_space *mapping = vma->vm_file->f_mapping;
+ struct inode *inode = mapping->host;
+
+ if (vma->vm_flags & VM_SHARED) {
+ pgoff_t idx = vma_hugecache_offset(h, vma, addr);
+ return region_chg(&inode->i_mapping->private_list,
+ idx, idx + 1);
-static struct page *alloc_huge_page_shared(struct vm_area_struct *vma,
- unsigned long addr)
+ } else if (!is_vma_resv_set(vma, HPAGE_RESV_OWNER)) {
+ return 1;
+
+ } else {
+ int err;
+ pgoff_t idx = vma_hugecache_offset(h, vma, addr);
+ struct resv_map *reservations = vma_resv_map(vma);
+
+ err = region_chg(&reservations->regions, idx, idx + 1);
+ if (err < 0)
+ return err;
+ return 0;
+ }
+}
+static void vma_commit_reservation(struct hstate *h,
+ struct vm_area_struct *vma, unsigned long addr)
{
- struct page *page;
+ struct address_space *mapping = vma->vm_file->f_mapping;
+ struct inode *inode = mapping->host;
- spin_lock(&hugetlb_lock);
- page = dequeue_huge_page_vma(vma, addr);
- spin_unlock(&hugetlb_lock);
- return page ? page : ERR_PTR(-VM_FAULT_OOM);
+ if (vma->vm_flags & VM_SHARED) {
+ pgoff_t idx = vma_hugecache_offset(h, vma, addr);
+ region_add(&inode->i_mapping->private_list, idx, idx + 1);
+
+ } else if (is_vma_resv_set(vma, HPAGE_RESV_OWNER)) {
+ pgoff_t idx = vma_hugecache_offset(h, vma, addr);
+ struct resv_map *reservations = vma_resv_map(vma);
+
+ /* Mark this page used in the map. */
+ region_add(&reservations->regions, idx, idx + 1);
+ }
}
-static struct page *alloc_huge_page_private(struct vm_area_struct *vma,
- unsigned long addr)
+static struct page *alloc_huge_page(struct vm_area_struct *vma,
+ unsigned long addr, int avoid_reserve)
{
- struct page *page = NULL;
+ struct hstate *h = hstate_vma(vma);
+ struct page *page;
+ struct address_space *mapping = vma->vm_file->f_mapping;
+ struct inode *inode = mapping->host;
+ unsigned int chg;
- if (hugetlb_get_quota(vma->vm_file->f_mapping, 1))
- return ERR_PTR(-VM_FAULT_SIGBUS);
+ /*
+ * Processes that did not create the mapping will have no reserves and
+ * will not have accounted against quota. Check that the quota can be
+ * made before satisfying the allocation
+ * MAP_NORESERVE mappings may also need pages and quota allocated
+ * if no reserve mapping overlaps.
+ */
+ chg = vma_needs_reservation(h, vma, addr);
+ if (chg < 0)
+ return ERR_PTR(chg);
+ if (chg)
+ if (hugetlb_get_quota(inode->i_mapping, chg))
+ return ERR_PTR(-ENOSPC);
spin_lock(&hugetlb_lock);
- if (free_huge_pages > resv_huge_pages)
- page = dequeue_huge_page_vma(vma, addr);
+ page = dequeue_huge_page_vma(h, vma, addr, avoid_reserve);
spin_unlock(&hugetlb_lock);
+
if (!page) {
- page = alloc_buddy_huge_page(vma, addr);
+ page = alloc_buddy_huge_page(h, vma, addr);
if (!page) {
- hugetlb_put_quota(vma->vm_file->f_mapping, 1);
+ hugetlb_put_quota(inode->i_mapping, chg);
return ERR_PTR(-VM_FAULT_OOM);
}
}
+
+ set_page_refcounted(page);
+ set_page_private(page, (unsigned long) mapping);
+
+ vma_commit_reservation(h, vma, addr);
+
return page;
}
-static struct page *alloc_huge_page(struct vm_area_struct *vma,
- unsigned long addr)
+__attribute__((weak)) int alloc_bootmem_huge_page(struct hstate *h)
{
- struct page *page;
- struct address_space *mapping = vma->vm_file->f_mapping;
+ struct huge_bootmem_page *m;
+ int nr_nodes = nodes_weight(node_online_map);
- if (vma->vm_flags & VM_MAYSHARE)
- page = alloc_huge_page_shared(vma, addr);
- else
- page = alloc_huge_page_private(vma, addr);
+ while (nr_nodes) {
+ void *addr;
+
+ addr = __alloc_bootmem_node_nopanic(
+ NODE_DATA(h->hugetlb_next_nid),
+ huge_page_size(h), huge_page_size(h), 0);
+
+ if (addr) {
+ /*
+ * Use the beginning of the huge page to store the
+ * huge_bootmem_page struct (until gather_bootmem
+ * puts them into the mem_map).
+ */
+ m = addr;
+ if (m)
+ goto found;
+ }
+ hstate_next_node(h);
+ nr_nodes--;
+ }
+ return 0;
+
+found:
+ BUG_ON((unsigned long)virt_to_phys(m) & (huge_page_size(h) - 1));
+ /* Put them into a private list first because mem_map is not up yet */
+ list_add(&m->list, &huge_boot_pages);
+ m->hstate = h;
+ return 1;
+}
- if (!IS_ERR(page)) {
- set_page_refcounted(page);
- set_page_private(page, (unsigned long) mapping);
+/* Put bootmem huge pages into the standard lists after mem_map is up */
+static void __init gather_bootmem_prealloc(void)
+{
+ struct huge_bootmem_page *m;
+
+ list_for_each_entry(m, &huge_boot_pages, list) {
+ struct page *page = virt_to_page(m);
+ struct hstate *h = m->hstate;
+ __ClearPageReserved(page);
+ WARN_ON(page_count(page) != 1);
+ prep_compound_page(page, h->order);
+ prep_new_huge_page(h, page, page_to_nid(page));
}
- return page;
}
-static int __init hugetlb_init(void)
+static void __init hugetlb_hstate_alloc_pages(struct hstate *h)
{
unsigned long i;
- if (HPAGE_SHIFT == 0)
- return 0;
-
- for (i = 0; i < MAX_NUMNODES; ++i)
- INIT_LIST_HEAD(&hugepage_freelists[i]);
-
- hugetlb_next_nid = first_node(node_online_map);
-
- for (i = 0; i < max_huge_pages; ++i) {
- if (!alloc_fresh_huge_page())
+ for (i = 0; i < h->max_huge_pages; ++i) {
+ if (h->order >= MAX_ORDER) {
+ if (!alloc_bootmem_huge_page(h))
+ break;
+ } else if (!alloc_fresh_huge_page(h))
break;
}
- max_huge_pages = free_huge_pages = nr_huge_pages = i;
- printk("Total HugeTLB memory allocated, %ld\n", free_huge_pages);
- return 0;
+ h->max_huge_pages = i;
}
-module_init(hugetlb_init);
-static int __init hugetlb_setup(char *s)
+static void __init hugetlb_init_hstates(void)
{
- if (sscanf(s, "%lu", &max_huge_pages) <= 0)
- max_huge_pages = 0;
- return 1;
+ struct hstate *h;
+
+ for_each_hstate(h) {
+ /* oversize hugepages were init'ed in early boot */
+ if (h->order < MAX_ORDER)
+ hugetlb_hstate_alloc_pages(h);
+ }
}
-__setup("hugepages=", hugetlb_setup);
-static unsigned int cpuset_mems_nr(unsigned int *array)
+static char * __init memfmt(char *buf, unsigned long n)
{
- int node;
- unsigned int nr = 0;
-
- for_each_node_mask(node, cpuset_current_mems_allowed)
- nr += array[node];
+ if (n >= (1UL << 30))
+ sprintf(buf, "%lu GB", n >> 30);
+ else if (n >= (1UL << 20))
+ sprintf(buf, "%lu MB", n >> 20);
+ else
+ sprintf(buf, "%lu KB", n >> 10);
+ return buf;
+}
- return nr;
+static void __init report_hugepages(void)
+{
+ struct hstate *h;
+
+ for_each_hstate(h) {
+ char buf[32];
+ printk(KERN_INFO "HugeTLB registered %s page size, "
+ "pre-allocated %ld pages\n",
+ memfmt(buf, huge_page_size(h)),
+ h->free_huge_pages);
+ }
}
#ifdef CONFIG_SYSCTL
#ifdef CONFIG_HIGHMEM
-static void try_to_free_low(unsigned long count)
+static void try_to_free_low(struct hstate *h, unsigned long count)
{
int i;
+ if (h->order >= MAX_ORDER)
+ return;
+
for (i = 0; i < MAX_NUMNODES; ++i) {
struct page *page, *next;
- list_for_each_entry_safe(page, next, &hugepage_freelists[i], lru) {
- if (count >= nr_huge_pages)
+ struct list_head *freel = &h->hugepage_freelists[i];
+ list_for_each_entry_safe(page, next, freel, lru) {
+ if (count >= h->nr_huge_pages)
return;
if (PageHighMem(page))
continue;
list_del(&page->lru);
- update_and_free_page(page);
- free_huge_pages--;
- free_huge_pages_node[page_to_nid(page)]--;
+ update_and_free_page(h, page);
+ h->free_huge_pages--;
+ h->free_huge_pages_node[page_to_nid(page)]--;
}
}
}
#else
-static inline void try_to_free_low(unsigned long count)
+static inline void try_to_free_low(struct hstate *h, unsigned long count)
{
}
#endif
-#define persistent_huge_pages (nr_huge_pages - surplus_huge_pages)
-static unsigned long set_max_huge_pages(unsigned long count)
+#define persistent_huge_pages(h) (h->nr_huge_pages - h->surplus_huge_pages)
+static unsigned long set_max_huge_pages(struct hstate *h, unsigned long count)
{
unsigned long min_count, ret;
+ if (h->order >= MAX_ORDER)
+ return h->max_huge_pages;
+
/*
* Increase the pool size
* First take pages out of surplus state. Then make up the
* within all the constraints specified by the sysctls.
*/
spin_lock(&hugetlb_lock);
- while (surplus_huge_pages && count > persistent_huge_pages) {
- if (!adjust_pool_surplus(-1))
+ while (h->surplus_huge_pages && count > persistent_huge_pages(h)) {
+ if (!adjust_pool_surplus(h, -1))
break;
}
- while (count > persistent_huge_pages) {
- int ret;
+ while (count > persistent_huge_pages(h)) {
/*
* If this allocation races such that we no longer need the
* page, free_huge_page will handle it by freeing the page
* and reducing the surplus.
*/
spin_unlock(&hugetlb_lock);
- ret = alloc_fresh_huge_page();
+ ret = alloc_fresh_huge_page(h);
spin_lock(&hugetlb_lock);
if (!ret)
goto out;
* and won't grow the pool anywhere else. Not until one of the
* sysctls are changed, or the surplus pages go out of use.
*/
- min_count = resv_huge_pages + nr_huge_pages - free_huge_pages;
+ min_count = h->resv_huge_pages + h->nr_huge_pages - h->free_huge_pages;
min_count = max(count, min_count);
- try_to_free_low(min_count);
- while (min_count < persistent_huge_pages) {
- struct page *page = dequeue_huge_page();
+ try_to_free_low(h, min_count);
+ while (min_count < persistent_huge_pages(h)) {
+ struct page *page = dequeue_huge_page(h);
if (!page)
break;
- update_and_free_page(page);
+ update_and_free_page(h, page);
}
- while (count < persistent_huge_pages) {
- if (!adjust_pool_surplus(1))
+ while (count < persistent_huge_pages(h)) {
+ if (!adjust_pool_surplus(h, 1))
break;
}
out:
- ret = persistent_huge_pages;
+ ret = persistent_huge_pages(h);
+ spin_unlock(&hugetlb_lock);
+ return ret;
+}
+
+#define HSTATE_ATTR_RO(_name) \
+ static struct kobj_attribute _name##_attr = __ATTR_RO(_name)
+
+#define HSTATE_ATTR(_name) \
+ static struct kobj_attribute _name##_attr = \
+ __ATTR(_name, 0644, _name##_show, _name##_store)
+
+static struct kobject *hugepages_kobj;
+static struct kobject *hstate_kobjs[HUGE_MAX_HSTATE];
+
+static struct hstate *kobj_to_hstate(struct kobject *kobj)
+{
+ int i;
+ for (i = 0; i < HUGE_MAX_HSTATE; i++)
+ if (hstate_kobjs[i] == kobj)
+ return &hstates[i];
+ BUG();
+ return NULL;
+}
+
+static ssize_t nr_hugepages_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ struct hstate *h = kobj_to_hstate(kobj);
+ return sprintf(buf, "%lu\n", h->nr_huge_pages);
+}
+static ssize_t nr_hugepages_store(struct kobject *kobj,
+ struct kobj_attribute *attr, const char *buf, size_t count)
+{
+ int err;
+ unsigned long input;
+ struct hstate *h = kobj_to_hstate(kobj);
+
+ err = strict_strtoul(buf, 10, &input);
+ if (err)
+ return 0;
+
+ h->max_huge_pages = set_max_huge_pages(h, input);
+
+ return count;
+}
+HSTATE_ATTR(nr_hugepages);
+
+static ssize_t nr_overcommit_hugepages_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ struct hstate *h = kobj_to_hstate(kobj);
+ return sprintf(buf, "%lu\n", h->nr_overcommit_huge_pages);
+}
+static ssize_t nr_overcommit_hugepages_store(struct kobject *kobj,
+ struct kobj_attribute *attr, const char *buf, size_t count)
+{
+ int err;
+ unsigned long input;
+ struct hstate *h = kobj_to_hstate(kobj);
+
+ err = strict_strtoul(buf, 10, &input);
+ if (err)
+ return 0;
+
+ spin_lock(&hugetlb_lock);
+ h->nr_overcommit_huge_pages = input;
+ spin_unlock(&hugetlb_lock);
+
+ return count;
+}
+HSTATE_ATTR(nr_overcommit_hugepages);
+
+static ssize_t free_hugepages_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ struct hstate *h = kobj_to_hstate(kobj);
+ return sprintf(buf, "%lu\n", h->free_huge_pages);
+}
+HSTATE_ATTR_RO(free_hugepages);
+
+static ssize_t resv_hugepages_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ struct hstate *h = kobj_to_hstate(kobj);
+ return sprintf(buf, "%lu\n", h->resv_huge_pages);
+}
+HSTATE_ATTR_RO(resv_hugepages);
+
+static ssize_t surplus_hugepages_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ struct hstate *h = kobj_to_hstate(kobj);
+ return sprintf(buf, "%lu\n", h->surplus_huge_pages);
+}
+HSTATE_ATTR_RO(surplus_hugepages);
+
+static struct attribute *hstate_attrs[] = {
+ &nr_hugepages_attr.attr,
+ &nr_overcommit_hugepages_attr.attr,
+ &free_hugepages_attr.attr,
+ &resv_hugepages_attr.attr,
+ &surplus_hugepages_attr.attr,
+ NULL,
+};
+
+static struct attribute_group hstate_attr_group = {
+ .attrs = hstate_attrs,
+};
+
+static int __init hugetlb_sysfs_add_hstate(struct hstate *h)
+{
+ int retval;
+
+ hstate_kobjs[h - hstates] = kobject_create_and_add(h->name,
+ hugepages_kobj);
+ if (!hstate_kobjs[h - hstates])
+ return -ENOMEM;
+
+ retval = sysfs_create_group(hstate_kobjs[h - hstates],
+ &hstate_attr_group);
+ if (retval)
+ kobject_put(hstate_kobjs[h - hstates]);
+
+ return retval;
+}
+
+static void __init hugetlb_sysfs_init(void)
+{
+ struct hstate *h;
+ int err;
+
+ hugepages_kobj = kobject_create_and_add("hugepages", mm_kobj);
+ if (!hugepages_kobj)
+ return;
+
+ for_each_hstate(h) {
+ err = hugetlb_sysfs_add_hstate(h);
+ if (err)
+ printk(KERN_ERR "Hugetlb: Unable to add hstate %s",
+ h->name);
+ }
+}
+
+static void __exit hugetlb_exit(void)
+{
+ struct hstate *h;
+
+ for_each_hstate(h) {
+ kobject_put(hstate_kobjs[h - hstates]);
+ }
+
+ kobject_put(hugepages_kobj);
+}
+module_exit(hugetlb_exit);
+
+static int __init hugetlb_init(void)
+{
+ BUILD_BUG_ON(HPAGE_SHIFT == 0);
+
+ if (!size_to_hstate(default_hstate_size)) {
+ default_hstate_size = HPAGE_SIZE;
+ if (!size_to_hstate(default_hstate_size))
+ hugetlb_add_hstate(HUGETLB_PAGE_ORDER);
+ }
+ default_hstate_idx = size_to_hstate(default_hstate_size) - hstates;
+ if (default_hstate_max_huge_pages)
+ default_hstate.max_huge_pages = default_hstate_max_huge_pages;
+
+ hugetlb_init_hstates();
+
+ gather_bootmem_prealloc();
+
+ report_hugepages();
+
+ hugetlb_sysfs_init();
+
+ return 0;
+}
+module_init(hugetlb_init);
+
+/* Should be called on processing a hugepagesz=... option */
+void __init hugetlb_add_hstate(unsigned order)
+{
+ struct hstate *h;
+ unsigned long i;
+
+ if (size_to_hstate(PAGE_SIZE << order)) {
+ printk(KERN_WARNING "hugepagesz= specified twice, ignoring\n");
+ return;
+ }
+ BUG_ON(max_hstate >= HUGE_MAX_HSTATE);
+ BUG_ON(order == 0);
+ h = &hstates[max_hstate++];
+ h->order = order;
+ h->mask = ~((1ULL << (order + PAGE_SHIFT)) - 1);
+ h->nr_huge_pages = 0;
+ h->free_huge_pages = 0;
+ for (i = 0; i < MAX_NUMNODES; ++i)
+ INIT_LIST_HEAD(&h->hugepage_freelists[i]);
+ h->hugetlb_next_nid = first_node(node_online_map);
+ snprintf(h->name, HSTATE_NAME_LEN, "hugepages-%lukB",
+ huge_page_size(h)/1024);
+
+ parsed_hstate = h;
+}
+
+static int __init hugetlb_nrpages_setup(char *s)
+{
+ unsigned long *mhp;
+ static unsigned long *last_mhp;
+
+ /*
+ * !max_hstate means we haven't parsed a hugepagesz= parameter yet,
+ * so this hugepages= parameter goes to the "default hstate".
+ */
+ if (!max_hstate)
+ mhp = &default_hstate_max_huge_pages;
+ else
+ mhp = &parsed_hstate->max_huge_pages;
+
+ if (mhp == last_mhp) {
+ printk(KERN_WARNING "hugepages= specified twice without "
+ "interleaving hugepagesz=, ignoring\n");
+ return 1;
+ }
+
+ if (sscanf(s, "%lu", mhp) <= 0)
+ *mhp = 0;
+
+ /*
+ * Global state is always initialized later in hugetlb_init.
+ * But we need to allocate >= MAX_ORDER hstates here early to still
+ * use the bootmem allocator.
+ */
+ if (max_hstate && parsed_hstate->order >= MAX_ORDER)
+ hugetlb_hstate_alloc_pages(parsed_hstate);
+
+ last_mhp = mhp;
+
+ return 1;
+}
+__setup("hugepages=", hugetlb_nrpages_setup);
+
+static int __init hugetlb_default_setup(char *s)
+{
+ default_hstate_size = memparse(s, &s);
+ return 1;
+}
+__setup("default_hugepagesz=", hugetlb_default_setup);
+
+static unsigned int cpuset_mems_nr(unsigned int *array)
+{
+ int node;
+ unsigned int nr = 0;
+
+ for_each_node_mask(node, cpuset_current_mems_allowed)
+ nr += array[node];
+
+ return nr;
+}
+
+int hugetlb_sysctl_handler(struct ctl_table *table, int write,
+ struct file *file, void __user *buffer,
+ size_t *length, loff_t *ppos)
+{
+ struct hstate *h = &default_hstate;
+ unsigned long tmp;
+
+ if (!write)
+ tmp = h->max_huge_pages;
+
+ table->data = &tmp;
+ table->maxlen = sizeof(unsigned long);
+ proc_doulongvec_minmax(table, write, file, buffer, length, ppos);
+
+ if (write)
+ h->max_huge_pages = set_max_huge_pages(h, tmp);
+
+ return 0;
+}
+
+int hugetlb_treat_movable_handler(struct ctl_table *table, int write,
+ struct file *file, void __user *buffer,
+ size_t *length, loff_t *ppos)
+{
+ proc_dointvec(table, write, file, buffer, length, ppos);
+ if (hugepages_treat_as_movable)
+ htlb_alloc_mask = GFP_HIGHUSER_MOVABLE;
+ else
+ htlb_alloc_mask = GFP_HIGHUSER;
+ return 0;
+}
+
+int hugetlb_overcommit_handler(struct ctl_table *table, int write,
+ struct file *file, void __user *buffer,
+ size_t *length, loff_t *ppos)
+{
+ struct hstate *h = &default_hstate;
+ unsigned long tmp;
+
+ if (!write)
+ tmp = h->nr_overcommit_huge_pages;
+
+ table->data = &tmp;
+ table->maxlen = sizeof(unsigned long);
+ proc_doulongvec_minmax(table, write, file, buffer, length, ppos);
+
+ if (write) {
+ spin_lock(&hugetlb_lock);
+ h->nr_overcommit_huge_pages = tmp;
+ spin_unlock(&hugetlb_lock);
+ }
+
+ return 0;
+}
+
+#endif /* CONFIG_SYSCTL */
+
+int hugetlb_report_meminfo(char *buf)
+{
+ struct hstate *h = &default_hstate;
+ return sprintf(buf,
+ "HugePages_Total: %5lu\n"
+ "HugePages_Free: %5lu\n"
+ "HugePages_Rsvd: %5lu\n"
+ "HugePages_Surp: %5lu\n"
+ "Hugepagesize: %5lu kB\n",
+ h->nr_huge_pages,
+ h->free_huge_pages,
+ h->resv_huge_pages,
+ h->surplus_huge_pages,
+ 1UL << (huge_page_order(h) + PAGE_SHIFT - 10));
+}
+
+int hugetlb_report_node_meminfo(int nid, char *buf)
+{
+ struct hstate *h = &default_hstate;
+ return sprintf(buf,
+ "Node %d HugePages_Total: %5u\n"
+ "Node %d HugePages_Free: %5u\n"
+ "Node %d HugePages_Surp: %5u\n",
+ nid, h->nr_huge_pages_node[nid],
+ nid, h->free_huge_pages_node[nid],
+ nid, h->surplus_huge_pages_node[nid]);
+}
+
+/* Return the number pages of memory we physically have, in PAGE_SIZE units. */
+unsigned long hugetlb_total_pages(void)
+{
+ struct hstate *h = &default_hstate;
+ return h->nr_huge_pages * pages_per_huge_page(h);
+}
+
+static int hugetlb_acct_memory(struct hstate *h, long delta)
+{
+ int ret = -ENOMEM;
+
+ spin_lock(&hugetlb_lock);
+ /*
+ * When cpuset is configured, it breaks the strict hugetlb page
+ * reservation as the accounting is done on a global variable. Such
+ * reservation is completely rubbish in the presence of cpuset because
+ * the reservation is not checked against page availability for the
+ * current cpuset. Application can still potentially OOM'ed by kernel
+ * with lack of free htlb page in cpuset that the task is in.
+ * Attempt to enforce strict accounting with cpuset is almost
+ * impossible (or too ugly) because cpuset is too fluid that
+ * task or memory node can be dynamically moved between cpusets.
+ *
+ * The change of semantics for shared hugetlb mapping with cpuset is
+ * undesirable. However, in order to preserve some of the semantics,
+ * we fall back to check against current free page availability as
+ * a best attempt and hopefully to minimize the impact of changing
+ * semantics that cpuset has.
+ */
+ if (delta > 0) {
+ if (gather_surplus_pages(h, delta) < 0)
+ goto out;
+
+ if (delta > cpuset_mems_nr(h->free_huge_pages_node)) {
+ return_unused_surplus_pages(h, delta);
+ goto out;
+ }
+ }
+
+ ret = 0;
+ if (delta < 0)
+ return_unused_surplus_pages(h, (unsigned long) -delta);
+
+out:
spin_unlock(&hugetlb_lock);
return ret;
}
-int hugetlb_sysctl_handler(struct ctl_table *table, int write,
- struct file *file, void __user *buffer,
- size_t *length, loff_t *ppos)
+static void hugetlb_vm_op_open(struct vm_area_struct *vma)
{
- proc_doulongvec_minmax(table, write, file, buffer, length, ppos);
- max_huge_pages = set_max_huge_pages(max_huge_pages);
- return 0;
-}
+ struct resv_map *reservations = vma_resv_map(vma);
-int hugetlb_treat_movable_handler(struct ctl_table *table, int write,
- struct file *file, void __user *buffer,
- size_t *length, loff_t *ppos)
-{
- proc_dointvec(table, write, file, buffer, length, ppos);
- if (hugepages_treat_as_movable)
- htlb_alloc_mask = GFP_HIGHUSER_MOVABLE;
- else
- htlb_alloc_mask = GFP_HIGHUSER;
- return 0;
+ /*
+ * This new VMA should share its siblings reservation map if present.
+ * The VMA will only ever have a valid reservation map pointer where
+ * it is being copied for another still existing VMA. As that VMA
+ * has a reference to the reservation map it cannot dissappear until
+ * after this open call completes. It is therefore safe to take a
+ * new reference here without additional locking.
+ */
+ if (reservations)
+ kref_get(&reservations->refs);
}
-int hugetlb_overcommit_handler(struct ctl_table *table, int write,
- struct file *file, void __user *buffer,
- size_t *length, loff_t *ppos)
+static void hugetlb_vm_op_close(struct vm_area_struct *vma)
{
- proc_doulongvec_minmax(table, write, file, buffer, length, ppos);
- spin_lock(&hugetlb_lock);
- nr_overcommit_huge_pages = sysctl_overcommit_huge_pages;
- spin_unlock(&hugetlb_lock);
- return 0;
-}
+ struct hstate *h = hstate_vma(vma);
+ struct resv_map *reservations = vma_resv_map(vma);
+ unsigned long reserve;
+ unsigned long start;
+ unsigned long end;
-#endif /* CONFIG_SYSCTL */
+ if (reservations) {
+ start = vma_hugecache_offset(h, vma, vma->vm_start);
+ end = vma_hugecache_offset(h, vma, vma->vm_end);
-int hugetlb_report_meminfo(char *buf)
-{
- return sprintf(buf,
- "HugePages_Total: %5lu\n"
- "HugePages_Free: %5lu\n"
- "HugePages_Rsvd: %5lu\n"
- "HugePages_Surp: %5lu\n"
- "Hugepagesize: %5lu kB\n",
- nr_huge_pages,
- free_huge_pages,
- resv_huge_pages,
- surplus_huge_pages,
- HPAGE_SIZE/1024);
-}
+ reserve = (end - start) -
+ region_count(&reservations->regions, start, end);
-int hugetlb_report_node_meminfo(int nid, char *buf)
-{
- return sprintf(buf,
- "Node %d HugePages_Total: %5u\n"
- "Node %d HugePages_Free: %5u\n"
- "Node %d HugePages_Surp: %5u\n",
- nid, nr_huge_pages_node[nid],
- nid, free_huge_pages_node[nid],
- nid, surplus_huge_pages_node[nid]);
-}
+ kref_put(&reservations->refs, resv_map_release);
-/* Return the number pages of memory we physically have, in PAGE_SIZE units. */
-unsigned long hugetlb_total_pages(void)
-{
- return nr_huge_pages * (HPAGE_SIZE / PAGE_SIZE);
+ if (reserve) {
+ hugetlb_acct_memory(h, -reserve);
+ hugetlb_put_quota(vma->vm_file->f_mapping, reserve);
+ }
+ }
}
/*
struct vm_operations_struct hugetlb_vm_ops = {
.fault = hugetlb_vm_op_fault,
+ .open = hugetlb_vm_op_open,
+ .close = hugetlb_vm_op_close,
};
static pte_t make_huge_pte(struct vm_area_struct *vma, struct page *page,
struct page *ptepage;
unsigned long addr;
int cow;
+ struct hstate *h = hstate_vma(vma);
+ unsigned long sz = huge_page_size(h);
cow = (vma->vm_flags & (VM_SHARED | VM_MAYWRITE)) == VM_MAYWRITE;
- for (addr = vma->vm_start; addr < vma->vm_end; addr += HPAGE_SIZE) {
+ for (addr = vma->vm_start; addr < vma->vm_end; addr += sz) {
src_pte = huge_pte_offset(src, addr);
if (!src_pte)
continue;
- dst_pte = huge_pte_alloc(dst, addr);
+ dst_pte = huge_pte_alloc(dst, addr, sz);
if (!dst_pte)
goto nomem;
}
void __unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start,
- unsigned long end)
+ unsigned long end, struct page *ref_page)
{
struct mm_struct *mm = vma->vm_mm;
unsigned long address;
pte_t pte;
struct page *page;
struct page *tmp;
+ struct hstate *h = hstate_vma(vma);
+ unsigned long sz = huge_page_size(h);
+
/*
* A page gathering list, protected by per file i_mmap_lock. The
* lock is used to avoid list corruption from multiple unmapping
LIST_HEAD(page_list);
WARN_ON(!is_vm_hugetlb_page(vma));
- BUG_ON(start & ~HPAGE_MASK);
- BUG_ON(end & ~HPAGE_MASK);
+ BUG_ON(start & ~huge_page_mask(h));
+ BUG_ON(end & ~huge_page_mask(h));
spin_lock(&mm->page_table_lock);
- for (address = start; address < end; address += HPAGE_SIZE) {
+ for (address = start; address < end; address += sz) {
ptep = huge_pte_offset(mm, address);
if (!ptep)
continue;
if (huge_pmd_unshare(mm, &address, ptep))
continue;
+ /*
+ * If a reference page is supplied, it is because a specific
+ * page is being unmapped, not a range. Ensure the page we
+ * are about to unmap is the actual page of interest.
+ */
+ if (ref_page) {
+ pte = huge_ptep_get(ptep);
+ if (huge_pte_none(pte))
+ continue;
+ page = pte_page(pte);
+ if (page != ref_page)
+ continue;
+
+ /*
+ * Mark the VMA as having unmapped its page so that
+ * future faults in this VMA will fail rather than
+ * looking like data was lost
+ */
+ set_vma_resv_flags(vma, HPAGE_RESV_UNMAPPED);
+ }
+
pte = huge_ptep_get_and_clear(mm, address, ptep);
if (huge_pte_none(pte))
continue;
}
void unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start,
- unsigned long end)
+ unsigned long end, struct page *ref_page)
+{
+ spin_lock(&vma->vm_file->f_mapping->i_mmap_lock);
+ __unmap_hugepage_range(vma, start, end, ref_page);
+ spin_unlock(&vma->vm_file->f_mapping->i_mmap_lock);
+}
+
+/*
+ * This is called when the original mapper is failing to COW a MAP_PRIVATE
+ * mappping it owns the reserve page for. The intention is to unmap the page
+ * from other VMAs and let the children be SIGKILLed if they are faulting the
+ * same region.
+ */
+int unmap_ref_private(struct mm_struct *mm,
+ struct vm_area_struct *vma,
+ struct page *page,
+ unsigned long address)
{
+ struct vm_area_struct *iter_vma;
+ struct address_space *mapping;
+ struct prio_tree_iter iter;
+ pgoff_t pgoff;
+
/*
- * It is undesirable to test vma->vm_file as it should be non-null
- * for valid hugetlb area. However, vm_file will be NULL in the error
- * cleanup path of do_mmap_pgoff. When hugetlbfs ->mmap method fails,
- * do_mmap_pgoff() nullifies vma->vm_file before calling this function
- * to clean up. Since no pte has actually been setup, it is safe to
- * do nothing in this case.
+ * vm_pgoff is in PAGE_SIZE units, hence the different calculation
+ * from page cache lookup which is in HPAGE_SIZE units.
*/
- if (vma->vm_file) {
- spin_lock(&vma->vm_file->f_mapping->i_mmap_lock);
- __unmap_hugepage_range(vma, start, end);
- spin_unlock(&vma->vm_file->f_mapping->i_mmap_lock);
+ address = address & huge_page_mask(hstate_vma(vma));
+ pgoff = ((address - vma->vm_start) >> PAGE_SHIFT)
+ + (vma->vm_pgoff >> PAGE_SHIFT);
+ mapping = (struct address_space *)page_private(page);
+
+ vma_prio_tree_foreach(iter_vma, &iter, &mapping->i_mmap, pgoff, pgoff) {
+ /* Do not unmap the current VMA */
+ if (iter_vma == vma)
+ continue;
+
+ /*
+ * Unmap the page from other VMAs without their own reserves.
+ * They get marked to be SIGKILLed if they fault in these
+ * areas. This is because a future no-page fault on this VMA
+ * could insert a zeroed page instead of the data existing
+ * from the time of fork. This would look like data corruption
+ */
+ if (!is_vma_resv_set(iter_vma, HPAGE_RESV_OWNER))
+ unmap_hugepage_range(iter_vma,
+ address, address + HPAGE_SIZE,
+ page);
}
+
+ return 1;
}
static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma,
- unsigned long address, pte_t *ptep, pte_t pte)
+ unsigned long address, pte_t *ptep, pte_t pte,
+ struct page *pagecache_page)
{
+ struct hstate *h = hstate_vma(vma);
struct page *old_page, *new_page;
int avoidcopy;
+ int outside_reserve = 0;
old_page = pte_page(pte);
+retry_avoidcopy:
/* If no-one else is actually using this page, avoid the copy
* and just make the page writable */
avoidcopy = (page_count(old_page) == 1);
return 0;
}
+ /*
+ * If the process that created a MAP_PRIVATE mapping is about to
+ * perform a COW due to a shared page count, attempt to satisfy
+ * the allocation without using the existing reserves. The pagecache
+ * page is used to determine if the reserve at this address was
+ * consumed or not. If reserves were used, a partial faulted mapping
+ * at the time of fork() could consume its reserves on COW instead
+ * of the full address range.
+ */
+ if (!(vma->vm_flags & VM_SHARED) &&
+ is_vma_resv_set(vma, HPAGE_RESV_OWNER) &&
+ old_page != pagecache_page)
+ outside_reserve = 1;
+
page_cache_get(old_page);
- new_page = alloc_huge_page(vma, address);
+ new_page = alloc_huge_page(vma, address, outside_reserve);
if (IS_ERR(new_page)) {
page_cache_release(old_page);
+
+ /*
+ * If a process owning a MAP_PRIVATE mapping fails to COW,
+ * it is due to references held by a child and an insufficient
+ * huge page pool. To guarantee the original mappers
+ * reliability, unmap the page from child processes. The child
+ * may get SIGKILLed if it later faults.
+ */
+ if (outside_reserve) {
+ BUG_ON(huge_pte_none(pte));
+ if (unmap_ref_private(mm, vma, old_page, address)) {
+ BUG_ON(page_count(old_page) != 1);
+ BUG_ON(huge_pte_none(pte));
+ goto retry_avoidcopy;
+ }
+ WARN_ON_ONCE(1);
+ }
+
return -PTR_ERR(new_page);
}
__SetPageUptodate(new_page);
spin_lock(&mm->page_table_lock);
- ptep = huge_pte_offset(mm, address & HPAGE_MASK);
+ ptep = huge_pte_offset(mm, address & huge_page_mask(h));
if (likely(pte_same(huge_ptep_get(ptep), pte))) {
/* Break COW */
huge_ptep_clear_flush(vma, address, ptep);
return 0;
}
+/* Return the pagecache page at a given address within a VMA */
+static struct page *hugetlbfs_pagecache_page(struct hstate *h,
+ struct vm_area_struct *vma, unsigned long address)
+{
+ struct address_space *mapping;
+ pgoff_t idx;
+
+ mapping = vma->vm_file->f_mapping;
+ idx = vma_hugecache_offset(h, vma, address);
+
+ return find_lock_page(mapping, idx);
+}
+
static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma,
unsigned long address, pte_t *ptep, int write_access)
{
+ struct hstate *h = hstate_vma(vma);
int ret = VM_FAULT_SIGBUS;
- unsigned long idx;
+ pgoff_t idx;
unsigned long size;
struct page *page;
struct address_space *mapping;
pte_t new_pte;
+ /*
+ * Currently, we are forced to kill the process in the event the
+ * original mapper has unmapped pages from the child due to a failed
+ * COW. Warn that such a situation has occured as it may not be obvious
+ */
+ if (is_vma_resv_set(vma, HPAGE_RESV_UNMAPPED)) {
+ printk(KERN_WARNING
+ "PID %d killed due to inadequate hugepage pool\n",
+ current->pid);
+ return ret;
+ }
+
mapping = vma->vm_file->f_mapping;
- idx = ((address - vma->vm_start) >> HPAGE_SHIFT)
- + (vma->vm_pgoff >> (HPAGE_SHIFT - PAGE_SHIFT));
+ idx = vma_hugecache_offset(h, vma, address);
/*
* Use page lock to guard against racing truncation
retry:
page = find_lock_page(mapping, idx);
if (!page) {
- size = i_size_read(mapping->host) >> HPAGE_SHIFT;
+ size = i_size_read(mapping->host) >> huge_page_shift(h);
if (idx >= size)
goto out;
- page = alloc_huge_page(vma, address);
+ page = alloc_huge_page(vma, address, 0);
if (IS_ERR(page)) {
ret = -PTR_ERR(page);
goto out;
}
- clear_huge_page(page, address);
+ clear_huge_page(page, address, huge_page_size(h));
__SetPageUptodate(page);
if (vma->vm_flags & VM_SHARED) {
}
spin_lock(&inode->i_lock);
- inode->i_blocks += BLOCKS_PER_HUGEPAGE;
+ inode->i_blocks += blocks_per_huge_page(h);
spin_unlock(&inode->i_lock);
} else
lock_page(page);
}
spin_lock(&mm->page_table_lock);
- size = i_size_read(mapping->host) >> HPAGE_SHIFT;
+ size = i_size_read(mapping->host) >> huge_page_shift(h);
if (idx >= size)
goto backout;
if (write_access && !(vma->vm_flags & VM_SHARED)) {
/* Optimization, do the COW without a second fault */
- ret = hugetlb_cow(mm, vma, address, ptep, new_pte);
+ ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page);
}
spin_unlock(&mm->page_table_lock);
pte_t entry;
int ret;
static DEFINE_MUTEX(hugetlb_instantiation_mutex);
+ struct hstate *h = hstate_vma(vma);
- ptep = huge_pte_alloc(mm, address);
+ ptep = huge_pte_alloc(mm, address, huge_page_size(h));
if (!ptep)
return VM_FAULT_OOM;
spin_lock(&mm->page_table_lock);
/* Check for a racing update before calling hugetlb_cow */
if (likely(pte_same(entry, huge_ptep_get(ptep))))
- if (write_access && !pte_write(entry))
- ret = hugetlb_cow(mm, vma, address, ptep, entry);
+ if (write_access && !pte_write(entry)) {
+ struct page *page;
+ page = hugetlbfs_pagecache_page(h, vma, address);
+ ret = hugetlb_cow(mm, vma, address, ptep, entry, page);
+ if (page) {
+ unlock_page(page);
+ put_page(page);
+ }
+ }
spin_unlock(&mm->page_table_lock);
mutex_unlock(&hugetlb_instantiation_mutex);
return ret;
}
+/* Can be overriden by architectures */
+__attribute__((weak)) struct page *
+follow_huge_pud(struct mm_struct *mm, unsigned long address,
+ pud_t *pud, int write)
+{
+ BUG();
+ return NULL;
+}
+
int follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma,
struct page **pages, struct vm_area_struct **vmas,
unsigned long *position, int *length, int i,
unsigned long pfn_offset;
unsigned long vaddr = *position;
int remainder = *length;
+ struct hstate *h = hstate_vma(vma);
spin_lock(&mm->page_table_lock);
while (vaddr < vma->vm_end && remainder) {
* each hugepage. We have to make * sure we get the
* first, for the page indexing below to work.
*/
- pte = huge_pte_offset(mm, vaddr & HPAGE_MASK);
+ pte = huge_pte_offset(mm, vaddr & huge_page_mask(h));
if (!pte || huge_pte_none(huge_ptep_get(pte)) ||
(write && !pte_write(huge_ptep_get(pte)))) {
break;
}
- pfn_offset = (vaddr & ~HPAGE_MASK) >> PAGE_SHIFT;
+ pfn_offset = (vaddr & ~huge_page_mask(h)) >> PAGE_SHIFT;
page = pte_page(huge_ptep_get(pte));
same_page:
if (pages) {
--remainder;
++i;
if (vaddr < vma->vm_end && remainder &&
- pfn_offset < HPAGE_SIZE/PAGE_SIZE) {
+ pfn_offset < pages_per_huge_page(h)) {
/*
* We use pfn_offset to avoid touching the pageframes
* of this compound page.
unsigned long start = address;
pte_t *ptep;
pte_t pte;
+ struct hstate *h = hstate_vma(vma);
BUG_ON(address >= end);
flush_cache_range(vma, address, end);
spin_lock(&vma->vm_file->f_mapping->i_mmap_lock);
spin_lock(&mm->page_table_lock);
- for (; address < end; address += HPAGE_SIZE) {
+ for (; address < end; address += huge_page_size(h)) {
ptep = huge_pte_offset(mm, address);
if (!ptep)
continue;
flush_tlb_range(vma, start, end);
}
-struct file_region {
- struct list_head link;
- long from;
- long to;
-};
-
-static long region_add(struct list_head *head, long f, long t)
-{
- struct file_region *rg, *nrg, *trg;
-
- /* Locate the region we are either in or before. */
- list_for_each_entry(rg, head, link)
- if (f <= rg->to)
- break;
-
- /* Round our left edge to the current segment if it encloses us. */
- if (f > rg->from)
- f = rg->from;
-
- /* Check for and consume any regions we now overlap with. */
- nrg = rg;
- list_for_each_entry_safe(rg, trg, rg->link.prev, link) {
- if (&rg->link == head)
- break;
- if (rg->from > t)
- break;
-
- /* If this area reaches higher then extend our area to
- * include it completely. If this is not the first area
- * which we intend to reuse, free it. */
- if (rg->to > t)
- t = rg->to;
- if (rg != nrg) {
- list_del(&rg->link);
- kfree(rg);
- }
- }
- nrg->from = f;
- nrg->to = t;
- return 0;
-}
-
-static long region_chg(struct list_head *head, long f, long t)
-{
- struct file_region *rg, *nrg;
- long chg = 0;
-
- /* Locate the region we are before or in. */
- list_for_each_entry(rg, head, link)
- if (f <= rg->to)
- break;
-
- /* If we are below the current region then a new region is required.
- * Subtle, allocate a new region at the position but make it zero
- * size such that we can guarantee to record the reservation. */
- if (&rg->link == head || t < rg->from) {
- nrg = kmalloc(sizeof(*nrg), GFP_KERNEL);
- if (!nrg)
- return -ENOMEM;
- nrg->from = f;
- nrg->to = f;
- INIT_LIST_HEAD(&nrg->link);
- list_add(&nrg->link, rg->link.prev);
-
- return t - f;
- }
-
- /* Round our left edge to the current segment if it encloses us. */
- if (f > rg->from)
- f = rg->from;
- chg = t - f;
-
- /* Check for and consume any regions we now overlap with. */
- list_for_each_entry(rg, rg->link.prev, link) {
- if (&rg->link == head)
- break;
- if (rg->from > t)
- return chg;
-
- /* We overlap with this area, if it extends futher than
- * us then we must extend ourselves. Account for its
- * existing reservation. */
- if (rg->to > t) {
- chg += rg->to - t;
- t = rg->to;
- }
- chg -= rg->to - rg->from;
- }
- return chg;
-}
-
-static long region_truncate(struct list_head *head, long end)
+int hugetlb_reserve_pages(struct inode *inode,
+ long from, long to,
+ struct vm_area_struct *vma)
{
- struct file_region *rg, *trg;
- long chg = 0;
+ long ret, chg;
+ struct hstate *h = hstate_inode(inode);
- /* Locate the region we are either in or before. */
- list_for_each_entry(rg, head, link)
- if (end <= rg->to)
- break;
- if (&rg->link == head)
+ if (vma && vma->vm_flags & VM_NORESERVE)
return 0;
- /* If we are in the middle of a region then adjust it. */
- if (end > rg->from) {
- chg = rg->to - end;
- rg->to = end;
- rg = list_entry(rg->link.next, typeof(*rg), link);
- }
-
- /* Drop any remaining regions. */
- list_for_each_entry_safe(rg, trg, rg->link.prev, link) {
- if (&rg->link == head)
- break;
- chg += rg->to - rg->from;
- list_del(&rg->link);
- kfree(rg);
- }
- return chg;
-}
-
-static int hugetlb_acct_memory(long delta)
-{
- int ret = -ENOMEM;
-
- spin_lock(&hugetlb_lock);
/*
- * When cpuset is configured, it breaks the strict hugetlb page
- * reservation as the accounting is done on a global variable. Such
- * reservation is completely rubbish in the presence of cpuset because
- * the reservation is not checked against page availability for the
- * current cpuset. Application can still potentially OOM'ed by kernel
- * with lack of free htlb page in cpuset that the task is in.
- * Attempt to enforce strict accounting with cpuset is almost
- * impossible (or too ugly) because cpuset is too fluid that
- * task or memory node can be dynamically moved between cpusets.
- *
- * The change of semantics for shared hugetlb mapping with cpuset is
- * undesirable. However, in order to preserve some of the semantics,
- * we fall back to check against current free page availability as
- * a best attempt and hopefully to minimize the impact of changing
- * semantics that cpuset has.
+ * Shared mappings base their reservation on the number of pages that
+ * are already allocated on behalf of the file. Private mappings need
+ * to reserve the full area even if read-only as mprotect() may be
+ * called to make the mapping read-write. Assume !vma is a shm mapping
*/
- if (delta > 0) {
- if (gather_surplus_pages(delta) < 0)
- goto out;
-
- if (delta > cpuset_mems_nr(free_huge_pages_node)) {
- return_unused_surplus_pages(delta);
- goto out;
- }
- }
-
- ret = 0;
- if (delta < 0)
- return_unused_surplus_pages((unsigned long) -delta);
+ if (!vma || vma->vm_flags & VM_SHARED)
+ chg = region_chg(&inode->i_mapping->private_list, from, to);
+ else {
+ struct resv_map *resv_map = resv_map_alloc();
+ if (!resv_map)
+ return -ENOMEM;
-out:
- spin_unlock(&hugetlb_lock);
- return ret;
-}
+ chg = to - from;
-int hugetlb_reserve_pages(struct inode *inode, long from, long to)
-{
- long ret, chg;
+ set_vma_resv_map(vma, resv_map);
+ set_vma_resv_flags(vma, HPAGE_RESV_OWNER);
+ }
- chg = region_chg(&inode->i_mapping->private_list, from, to);
if (chg < 0)
return chg;
if (hugetlb_get_quota(inode->i_mapping, chg))
return -ENOSPC;
- ret = hugetlb_acct_memory(chg);
+ ret = hugetlb_acct_memory(h, chg);
if (ret < 0) {
hugetlb_put_quota(inode->i_mapping, chg);
return ret;
}
- region_add(&inode->i_mapping->private_list, from, to);
+ if (!vma || vma->vm_flags & VM_SHARED)
+ region_add(&inode->i_mapping->private_list, from, to);
return 0;
}
void hugetlb_unreserve_pages(struct inode *inode, long offset, long freed)
{
+ struct hstate *h = hstate_inode(inode);
long chg = region_truncate(&inode->i_mapping->private_list, offset);
spin_lock(&inode->i_lock);
- inode->i_blocks -= BLOCKS_PER_HUGEPAGE * freed;
+ inode->i_blocks -= blocks_per_huge_page(h);
spin_unlock(&inode->i_lock);
hugetlb_put_quota(inode->i_mapping, (chg - freed));
- hugetlb_acct_memory(-(chg - freed));
+ hugetlb_acct_memory(h, -(chg - freed));
}
#include <linux/mm.h>
+void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *start_vma,
+ unsigned long floor, unsigned long ceiling);
+
+extern void prep_compound_page(struct page *page, unsigned long order);
+
static inline void set_page_count(struct page *page, int v)
{
atomic_set(&page->_count, v);
#define __paginginit __init
#endif
+/* Memory initialisation debug and verification */
+enum mminit_level {
+ MMINIT_WARNING,
+ MMINIT_VERIFY,
+ MMINIT_TRACE
+};
+
+#ifdef CONFIG_DEBUG_MEMORY_INIT
+
+extern int mminit_loglevel;
+
+#define mminit_dprintk(level, prefix, fmt, arg...) \
+do { \
+ if (level < mminit_loglevel) { \
+ printk(level <= MMINIT_WARNING ? KERN_WARNING : KERN_DEBUG); \
+ printk(KERN_CONT "mminit::" prefix " " fmt, ##arg); \
+ } \
+} while (0)
+
+extern void mminit_verify_pageflags_layout(void);
+extern void mminit_verify_page_links(struct page *page,
+ enum zone_type zone, unsigned long nid, unsigned long pfn);
+extern void mminit_verify_zonelist(void);
+
+#else
+
+static inline void mminit_dprintk(enum mminit_level level,
+ const char *prefix, const char *fmt, ...)
+{
+}
+
+static inline void mminit_verify_pageflags_layout(void)
+{
+}
+
+static inline void mminit_verify_page_links(struct page *page,
+ enum zone_type zone, unsigned long nid, unsigned long pfn)
+{
+}
+
+static inline void mminit_verify_zonelist(void)
+{
+}
+#endif /* CONFIG_DEBUG_MEMORY_INIT */
+
+/* mminit_validate_memmodel_limits is independent of CONFIG_DEBUG_MEMORY_INIT */
+#if defined(CONFIG_SPARSEMEM)
+extern void mminit_validate_memmodel_limits(unsigned long *start_pfn,
+ unsigned long *end_pfn);
+#else
+static inline void mminit_validate_memmodel_limits(unsigned long *start_pfn,
+ unsigned long *end_pfn)
+{
+}
+#endif /* CONFIG_SPARSEMEM */
+
#endif
#include <linux/swapops.h>
#include <linux/elf.h>
+#include "internal.h"
+
#ifndef CONFIG_NEED_MULTIPLE_NODES
/* use the per-pgdat data instead for discontigmem - mbligh */
unsigned long max_mapnr;
*
* Must be called with pagetable lock held.
*/
-void free_pgd_range(struct mmu_gather **tlb,
+void free_pgd_range(struct mmu_gather *tlb,
unsigned long addr, unsigned long end,
unsigned long floor, unsigned long ceiling)
{
return;
start = addr;
- pgd = pgd_offset((*tlb)->mm, addr);
+ pgd = pgd_offset(tlb->mm, addr);
do {
next = pgd_addr_end(addr, end);
if (pgd_none_or_clear_bad(pgd))
continue;
- free_pud_range(*tlb, pgd, addr, next, floor, ceiling);
+ free_pud_range(tlb, pgd, addr, next, floor, ceiling);
} while (pgd++, addr = next, addr != end);
}
-void free_pgtables(struct mmu_gather **tlb, struct vm_area_struct *vma,
+void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *vma,
unsigned long floor, unsigned long ceiling)
{
while (vma) {
}
if (unlikely(is_vm_hugetlb_page(vma))) {
- unmap_hugepage_range(vma, start, end);
- zap_work -= (end - start) /
- (HPAGE_SIZE / PAGE_SIZE);
+ /*
+ * It is undesirable to test vma->vm_file as it
+ * should be non-null for valid hugetlb area.
+ * However, vm_file will be NULL in the error
+ * cleanup path of do_mmap_pgoff. When
+ * hugetlbfs ->mmap method fails,
+ * do_mmap_pgoff() nullifies vma->vm_file
+ * before calling this function to clean up.
+ * Since no pte has actually been setup, it is
+ * safe to do nothing in this case.
+ */
+ if (vma->vm_file) {
+ unmap_hugepage_range(vma, start, end, NULL);
+ zap_work -= (end - start) /
+ pages_per_huge_page(hstate_vma(vma));
+ }
+
start = end;
} else
start = unmap_page_range(*tlbp, vma,
goto no_page_table;
pud = pud_offset(pgd, address);
- if (pud_none(*pud) || unlikely(pud_bad(*pud)))
+ if (pud_none(*pud))
goto no_page_table;
-
+ if (pud_huge(*pud)) {
+ BUG_ON(flags & FOLL_GET);
+ page = follow_huge_pud(mm, address, pud, flags & FOLL_WRITE);
+ goto out;
+ }
+ if (unlikely(pud_bad(*pud)))
+ goto no_page_table;
+
pmd = pmd_offset(pud, address);
if (pmd_none(*pmd))
goto no_page_table;
-
if (pmd_huge(*pmd)) {
BUG_ON(flags & FOLL_GET);
page = follow_huge_pmd(mm, address, pmd, flags & FOLL_WRITE);
goto out;
}
-
if (unlikely(pmd_bad(*pmd)))
goto no_page_table;
if (vma->vm_flags & (VM_LOCKED | VM_SHARED))
return 0;
/*
- * And if we have a fault or a nopfn routine, it's not an
- * anonymous region.
+ * And if we have a fault routine, it's not an anonymous region.
*/
- return !vma->vm_ops ||
- (!vma->vm_ops->fault && !vma->vm_ops->nopfn);
+ return !vma->vm_ops || !vma->vm_ops->fault;
}
int get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
*
* This function should only be called from a vm_ops->fault handler, and
* in that case the handler should return NULL.
+ *
+ * vma cannot be a COW mapping.
+ *
+ * As this is called only for pages that do not currently exist, we
+ * do not need to flush old virtual caches or the TLB.
*/
int vm_insert_pfn(struct vm_area_struct *vma, unsigned long addr,
unsigned long pfn)
unsigned long next;
int err;
+ BUG_ON(pud_huge(*pud));
+
pmd = pmd_alloc(mm, pud, addr);
if (!pmd)
return -ENOMEM;
return __do_fault(mm, vma, address, pmd, pgoff, flags, orig_pte);
}
-
-/*
- * do_no_pfn() tries to create a new page mapping for a page without
- * a struct_page backing it
- *
- * As this is called only for pages that do not currently exist, we
- * do not need to flush old virtual caches or the TLB.
- *
- * We enter with non-exclusive mmap_sem (to exclude vma changes,
- * but allow concurrent faults), and pte mapped but not yet locked.
- * We return with mmap_sem still held, but pte unmapped and unlocked.
- *
- * It is expected that the ->nopfn handler always returns the same pfn
- * for a given virtual mapping.
- *
- * Mark this `noinline' to prevent it from bloating the main pagefault code.
- */
-static noinline int do_no_pfn(struct mm_struct *mm, struct vm_area_struct *vma,
- unsigned long address, pte_t *page_table, pmd_t *pmd,
- int write_access)
-{
- spinlock_t *ptl;
- pte_t entry;
- unsigned long pfn;
-
- pte_unmap(page_table);
- BUG_ON(!(vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP)));
- BUG_ON((vma->vm_flags & VM_PFNMAP) && is_cow_mapping(vma->vm_flags));
-
- pfn = vma->vm_ops->nopfn(vma, address & PAGE_MASK);
-
- BUG_ON((vma->vm_flags & VM_MIXEDMAP) && pfn_valid(pfn));
-
- if (unlikely(pfn == NOPFN_OOM))
- return VM_FAULT_OOM;
- else if (unlikely(pfn == NOPFN_SIGBUS))
- return VM_FAULT_SIGBUS;
- else if (unlikely(pfn == NOPFN_REFAULT))
- return 0;
-
- page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
-
- /* Only go through if we didn't race with anybody else... */
- if (pte_none(*page_table)) {
- entry = pfn_pte(pfn, vma->vm_page_prot);
- if (write_access)
- entry = maybe_mkwrite(pte_mkdirty(entry), vma);
- set_pte_at(mm, address, page_table, entry);
- }
- pte_unmap_unlock(page_table, ptl);
- return 0;
-}
-
/*
* Fault of a previously existing named mapping. Repopulate the pte
* from the encoded file_pte if possible. This enables swappable
if (likely(vma->vm_ops->fault))
return do_linear_fault(mm, vma, address,
pte, pmd, write_access, entry);
- if (unlikely(vma->vm_ops->nopfn))
- return do_no_pfn(mm, vma, address, pte,
- pmd, write_access);
}
return do_anonymous_page(mm, vma, address,
pte, pmd, write_access);
#endif /* __HAVE_ARCH_GATE_AREA */
+#ifdef CONFIG_HAVE_IOREMAP_PROT
+static resource_size_t follow_phys(struct vm_area_struct *vma,
+ unsigned long address, unsigned int flags,
+ unsigned long *prot)
+{
+ pgd_t *pgd;
+ pud_t *pud;
+ pmd_t *pmd;
+ pte_t *ptep, pte;
+ spinlock_t *ptl;
+ resource_size_t phys_addr = 0;
+ struct mm_struct *mm = vma->vm_mm;
+
+ VM_BUG_ON(!(vma->vm_flags & (VM_IO | VM_PFNMAP)));
+
+ pgd = pgd_offset(mm, address);
+ if (pgd_none(*pgd) || unlikely(pgd_bad(*pgd)))
+ goto no_page_table;
+
+ pud = pud_offset(pgd, address);
+ if (pud_none(*pud) || unlikely(pud_bad(*pud)))
+ goto no_page_table;
+
+ pmd = pmd_offset(pud, address);
+ if (pmd_none(*pmd) || unlikely(pmd_bad(*pmd)))
+ goto no_page_table;
+
+ /* We cannot handle huge page PFN maps. Luckily they don't exist. */
+ if (pmd_huge(*pmd))
+ goto no_page_table;
+
+ ptep = pte_offset_map_lock(mm, pmd, address, &ptl);
+ if (!ptep)
+ goto out;
+
+ pte = *ptep;
+ if (!pte_present(pte))
+ goto unlock;
+ if ((flags & FOLL_WRITE) && !pte_write(pte))
+ goto unlock;
+ phys_addr = pte_pfn(pte);
+ phys_addr <<= PAGE_SHIFT; /* Shift here to avoid overflow on PAE */
+
+ *prot = pgprot_val(pte_pgprot(pte));
+
+unlock:
+ pte_unmap_unlock(ptep, ptl);
+out:
+ return phys_addr;
+no_page_table:
+ return 0;
+}
+
+int generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
+ void *buf, int len, int write)
+{
+ resource_size_t phys_addr;
+ unsigned long prot = 0;
+ void *maddr;
+ int offset = addr & (PAGE_SIZE-1);
+
+ if (!(vma->vm_flags & (VM_IO | VM_PFNMAP)))
+ return -EINVAL;
+
+ phys_addr = follow_phys(vma, addr, write, &prot);
+
+ if (!phys_addr)
+ return -EINVAL;
+
+ maddr = ioremap_prot(phys_addr, PAGE_SIZE, prot);
+ if (write)
+ memcpy_toio(maddr + offset, buf, len);
+ else
+ memcpy_fromio(buf, maddr + offset, len);
+ iounmap(maddr);
+
+ return len;
+}
+#endif
+
/*
* Access another process' address space.
* Source/target buffer must be kernel space,
{
struct mm_struct *mm;
struct vm_area_struct *vma;
- struct page *page;
void *old_buf = buf;
mm = get_task_mm(tsk);
while (len) {
int bytes, ret, offset;
void *maddr;
+ struct page *page = NULL;
ret = get_user_pages(tsk, mm, addr, 1,
write, 1, &page, &vma);
- if (ret <= 0)
- break;
-
- bytes = len;
- offset = addr & (PAGE_SIZE-1);
- if (bytes > PAGE_SIZE-offset)
- bytes = PAGE_SIZE-offset;
-
- maddr = kmap(page);
- if (write) {
- copy_to_user_page(vma, page, addr,
- maddr + offset, buf, bytes);
- set_page_dirty_lock(page);
+ if (ret <= 0) {
+ /*
+ * Check if this is a VM_IO | VM_PFNMAP VMA, which
+ * we can access using slightly different code.
+ */
+#ifdef CONFIG_HAVE_IOREMAP_PROT
+ vma = find_vma(mm, addr);
+ if (!vma)
+ break;
+ if (vma->vm_ops && vma->vm_ops->access)
+ ret = vma->vm_ops->access(vma, addr, buf,
+ len, write);
+ if (ret <= 0)
+#endif
+ break;
+ bytes = ret;
} else {
- copy_from_user_page(vma, page, addr,
- buf, maddr + offset, bytes);
+ bytes = len;
+ offset = addr & (PAGE_SIZE-1);
+ if (bytes > PAGE_SIZE-offset)
+ bytes = PAGE_SIZE-offset;
+
+ maddr = kmap(page);
+ if (write) {
+ copy_to_user_page(vma, page, addr,
+ maddr + offset, buf, bytes);
+ set_page_dirty_lock(page);
+ } else {
+ copy_from_user_page(vma, page, addr,
+ buf, maddr + offset, bytes);
+ }
+ kunmap(page);
+ page_cache_release(page);
}
- kunmap(page);
- page_cache_release(page);
len -= bytes;
buf += bytes;
addr += bytes;
#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
#ifndef CONFIG_SPARSEMEM_VMEMMAP
-static void get_page_bootmem(unsigned long info, struct page *page, int magic)
+static void get_page_bootmem(unsigned long info, struct page *page, int type)
{
- atomic_set(&page->_mapcount, magic);
+ atomic_set(&page->_mapcount, type);
SetPagePrivate(page);
set_page_private(page, info);
atomic_inc(&page->_count);
void put_page_bootmem(struct page *page)
{
- int magic;
+ int type;
- magic = atomic_read(&page->_mapcount);
- BUG_ON(magic >= -1);
+ type = atomic_read(&page->_mapcount);
+ BUG_ON(type >= -1);
if (atomic_dec_return(&page->_count) == 1) {
ClearPagePrivate(page);
}
-void register_page_bootmem_info_section(unsigned long start_pfn)
+static void register_page_bootmem_info_section(unsigned long start_pfn)
{
unsigned long *usemap, mapsize, section_nr, i;
struct mem_section *ms;
mapsize = PAGE_ALIGN(usemap_size()) >> PAGE_SHIFT;
for (i = 0; i < mapsize; i++, page++)
- get_page_bootmem(section_nr, page, MIX_INFO);
+ get_page_bootmem(section_nr, page, MIX_SECTION_INFO);
}
if (need_zonelists_rebuild)
build_all_zonelists();
- vm_total_pages = nr_free_pagecache_pages();
+ else
+ vm_total_pages = nr_free_pagecache_pages();
+
writeback_set_ratelimit();
if (onlined_pages)
/* we can use NODE_DATA(nid) from here */
/* init node's zones as empty zones, we don't have any present pages.*/
- free_area_init_node(nid, pgdat, zones_size, start_pfn, zholes_size);
+ free_area_init_node(nid, zones_size, start_pfn, zholes_size);
return pgdat;
}
EXPORT_SYMBOL_GPL(add_memory);
#ifdef CONFIG_MEMORY_HOTREMOVE
+/*
+ * A free page on the buddy free lists (not the per-cpu lists) has PageBuddy
+ * set and the size of the free page is given by page_order(). Using this,
+ * the function determines if the pageblock contains only free pages.
+ * Due to buddy contraints, a free page at least the size of a pageblock will
+ * be located at the start of the pageblock
+ */
+static inline int pageblock_free(struct page *page)
+{
+ return PageBuddy(page) && page_order(page) >= pageblock_order;
+}
+
+/* Return the start of the next active pageblock after a given page */
+static struct page *next_active_pageblock(struct page *page)
+{
+ int pageblocks_stride;
+
+ /* Ensure the starting page is pageblock-aligned */
+ BUG_ON(page_to_pfn(page) & (pageblock_nr_pages - 1));
+
+ /* Move forward by at least 1 * pageblock_nr_pages */
+ pageblocks_stride = 1;
+
+ /* If the entire pageblock is free, move to the end of free page */
+ if (pageblock_free(page))
+ pageblocks_stride += page_order(page) - pageblock_order;
+
+ return page + (pageblocks_stride * pageblock_nr_pages);
+}
+
+/* Checks if this range of memory is likely to be hot-removable. */
+int is_mem_section_removable(unsigned long start_pfn, unsigned long nr_pages)
+{
+ int type;
+ struct page *page = pfn_to_page(start_pfn);
+ struct page *end_page = page + nr_pages;
+
+ /* Check the starting page of each pageblock within the range */
+ for (; page < end_page; page = next_active_pageblock(page)) {
+ type = get_pageblock_migratetype(page);
+
+ /*
+ * A pageblock containing MOVABLE or free pages is considered
+ * removable
+ */
+ if (type != MIGRATE_MOVABLE && !pageblock_free(page))
+ return 0;
+
+ /*
+ * A pageblock starting with a PageReserved page is not
+ * considered removable.
+ */
+ if (PageReserved(page))
+ return 0;
+ }
+
+ /* All pageblocks in the memory block are likely to be hot-removable */
+ return 1;
+}
+
/*
* Confirm all pages in a range [start, end) is belongs to the same zone.
*/
if (unlikely((*mpol)->mode == MPOL_INTERLEAVE)) {
zl = node_zonelist(interleave_nid(*mpol, vma, addr,
- HPAGE_SHIFT), gfp_flags);
+ huge_page_shift(hstate_vma(vma))), gfp_flags);
} else {
zl = policy_zonelist(gfp_flags, *mpol);
if ((*mpol)->mode == MPOL_BIND)
{
unsigned long addr;
struct page *page;
+ struct hstate *h = hstate_vma(vma);
+ unsigned long sz = huge_page_size(h);
- for (addr = start; addr < end; addr += HPAGE_SIZE) {
- pte_t *ptep = huge_pte_offset(vma->vm_mm, addr & HPAGE_MASK);
+ for (addr = start; addr < end; addr += sz) {
+ pte_t *ptep = huge_pte_offset(vma->vm_mm,
+ addr & huge_page_mask(h));
pte_t pte;
if (!ptep)
#include <linux/vmalloc.h>
#include <linux/security.h>
#include <linux/memcontrol.h>
+#include <linux/syscalls.h>
#include "internal.h"
mmput(mm);
return err;
}
-#endif
/*
* Call migration functions in the vma_ops that may prepare
}
return err;
}
+#endif
--- /dev/null
+/*
+ * mm_init.c - Memory initialisation verification and debugging
+ *
+ * Copyright 2008 IBM Corporation, 2008
+ * Author Mel Gorman <mel@csn.ul.ie>
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/kobject.h>
+#include <linux/module.h>
+#include "internal.h"
+
+#ifdef CONFIG_DEBUG_MEMORY_INIT
+int __meminitdata mminit_loglevel;
+
+/* The zonelists are simply reported, validation is manual. */
+void mminit_verify_zonelist(void)
+{
+ int nid;
+
+ if (mminit_loglevel < MMINIT_VERIFY)
+ return;
+
+ for_each_online_node(nid) {
+ pg_data_t *pgdat = NODE_DATA(nid);
+ struct zone *zone;
+ struct zoneref *z;
+ struct zonelist *zonelist;
+ int i, listid, zoneid;
+
+ BUG_ON(MAX_ZONELISTS > 2);
+ for (i = 0; i < MAX_ZONELISTS * MAX_NR_ZONES; i++) {
+
+ /* Identify the zone and nodelist */
+ zoneid = i % MAX_NR_ZONES;
+ listid = i / MAX_NR_ZONES;
+ zonelist = &pgdat->node_zonelists[listid];
+ zone = &pgdat->node_zones[zoneid];
+ if (!populated_zone(zone))
+ continue;
+
+ /* Print information about the zonelist */
+ printk(KERN_DEBUG "mminit::zonelist %s %d:%s = ",
+ listid > 0 ? "thisnode" : "general", nid,
+ zone->name);
+
+ /* Iterate the zonelist */
+ for_each_zone_zonelist(zone, z, zonelist, zoneid) {
+#ifdef CONFIG_NUMA
+ printk(KERN_CONT "%d:%s ",
+ zone->node, zone->name);
+#else
+ printk(KERN_CONT "0:%s ", zone->name);
+#endif /* CONFIG_NUMA */
+ }
+ printk(KERN_CONT "\n");
+ }
+ }
+}
+
+void __init mminit_verify_pageflags_layout(void)
+{
+ int shift, width;
+ unsigned long or_mask, add_mask;
+
+ shift = 8 * sizeof(unsigned long);
+ width = shift - SECTIONS_WIDTH - NODES_WIDTH - ZONES_WIDTH;
+ mminit_dprintk(MMINIT_TRACE, "pageflags_layout_widths",
+ "Section %d Node %d Zone %d Flags %d\n",
+ SECTIONS_WIDTH,
+ NODES_WIDTH,
+ ZONES_WIDTH,
+ NR_PAGEFLAGS);
+ mminit_dprintk(MMINIT_TRACE, "pageflags_layout_shifts",
+ "Section %d Node %d Zone %d\n",
+#ifdef SECTIONS_SHIFT
+ SECTIONS_SHIFT,
+#else
+ 0,
+#endif
+ NODES_SHIFT,
+ ZONES_SHIFT);
+ mminit_dprintk(MMINIT_TRACE, "pageflags_layout_offsets",
+ "Section %lu Node %lu Zone %lu\n",
+ (unsigned long)SECTIONS_PGSHIFT,
+ (unsigned long)NODES_PGSHIFT,
+ (unsigned long)ZONES_PGSHIFT);
+ mminit_dprintk(MMINIT_TRACE, "pageflags_layout_zoneid",
+ "Zone ID: %lu -> %lu\n",
+ (unsigned long)ZONEID_PGOFF,
+ (unsigned long)(ZONEID_PGOFF + ZONEID_SHIFT));
+ mminit_dprintk(MMINIT_TRACE, "pageflags_layout_usage",
+ "location: %d -> %d unused %d -> %d flags %d -> %d\n",
+ shift, width, width, NR_PAGEFLAGS, NR_PAGEFLAGS, 0);
+#ifdef NODE_NOT_IN_PAGE_FLAGS
+ mminit_dprintk(MMINIT_TRACE, "pageflags_layout_nodeflags",
+ "Node not in page flags");
+#endif
+
+ if (SECTIONS_WIDTH) {
+ shift -= SECTIONS_WIDTH;
+ BUG_ON(shift != SECTIONS_PGSHIFT);
+ }
+ if (NODES_WIDTH) {
+ shift -= NODES_WIDTH;
+ BUG_ON(shift != NODES_PGSHIFT);
+ }
+ if (ZONES_WIDTH) {
+ shift -= ZONES_WIDTH;
+ BUG_ON(shift != ZONES_PGSHIFT);
+ }
+
+ /* Check for bitmask overlaps */
+ or_mask = (ZONES_MASK << ZONES_PGSHIFT) |
+ (NODES_MASK << NODES_PGSHIFT) |
+ (SECTIONS_MASK << SECTIONS_PGSHIFT);
+ add_mask = (ZONES_MASK << ZONES_PGSHIFT) +
+ (NODES_MASK << NODES_PGSHIFT) +
+ (SECTIONS_MASK << SECTIONS_PGSHIFT);
+ BUG_ON(or_mask != add_mask);
+}
+
+void __meminit mminit_verify_page_links(struct page *page, enum zone_type zone,
+ unsigned long nid, unsigned long pfn)
+{
+ BUG_ON(page_to_nid(page) != nid);
+ BUG_ON(page_zonenum(page) != zone);
+ BUG_ON(page_to_pfn(page) != pfn);
+}
+
+static __init int set_mminit_loglevel(char *str)
+{
+ get_option(&str, &mminit_loglevel);
+ return 0;
+}
+early_param("mminit_loglevel", set_mminit_loglevel);
+#endif /* CONFIG_DEBUG_MEMORY_INIT */
+
+struct kobject *mm_kobj;
+EXPORT_SYMBOL_GPL(mm_kobj);
+
+static int __init mm_sysfs_init(void)
+{
+ mm_kobj = kobject_create_and_add("mm", kernel_kobj);
+ if (!mm_kobj)
+ return -ENOMEM;
+
+ return 0;
+}
+
+__initcall(mm_sysfs_init);
#include <asm/tlb.h>
#include <asm/mmu_context.h>
+#include "internal.h"
+
#ifndef arch_mmap_check
#define arch_mmap_check(addr, len, flags) (0)
#endif
if (!may_expand_vm(mm, len >> PAGE_SHIFT))
return -ENOMEM;
+ if (flags & MAP_NORESERVE)
+ vm_flags |= VM_NORESERVE;
+
if (accountable && (!(flags & MAP_NORESERVE) ||
sysctl_overcommit_memory == OVERCOMMIT_NEVER)) {
if (vm_flags & VM_SHARED) {
update_hiwater_rss(mm);
unmap_vmas(&tlb, vma, start, end, &nr_accounted, NULL);
vm_unacct_memory(nr_accounted);
- free_pgtables(&tlb, vma, prev? prev->vm_end: FIRST_USER_ADDRESS,
+ free_pgtables(tlb, vma, prev? prev->vm_end: FIRST_USER_ADDRESS,
next? next->vm_start: 0);
tlb_finish_mmu(tlb, start, end);
}
struct mempolicy *pol;
struct vm_area_struct *new;
- if (is_vm_hugetlb_page(vma) && (addr & ~HPAGE_MASK))
+ if (is_vm_hugetlb_page(vma) && (addr &
+ ~(huge_page_mask(hstate_vma(vma)))))
return -EINVAL;
if (mm->map_count >= sysctl_max_map_count)
/* Use -1 here to ensure all VMAs in the mm are unmapped */
end = unmap_vmas(&tlb, vma, 0, -1, &nr_accounted, NULL);
vm_unacct_memory(nr_accounted);
- free_pgtables(&tlb, vma, FIRST_USER_ADDRESS, 0);
+ free_pgtables(tlb, vma, FIRST_USER_ADDRESS, 0);
tlb_finish_mmu(tlb, 0, end);
/*
* If we make a private mapping writable we increase our commit;
* but (without finer accounting) cannot reduce our commit if we
* make it unwritable again.
- *
- * FIXME? We haven't defined a VM_NORESERVE flag, so mprotecting
- * a MAP_NORESERVE private mapping to writable will now reserve.
*/
if (newflags & VM_WRITE) {
- if (!(oldflags & (VM_ACCOUNT|VM_WRITE|VM_SHARED))) {
+ if (!(oldflags & (VM_ACCOUNT|VM_WRITE|
+ VM_SHARED|VM_NORESERVE))) {
charged = nrpages;
if (security_vm_enough_memory(charged))
return -ENOMEM;
static unsigned long __meminitdata node_boundary_start_pfn[MAX_NUMNODES];
static unsigned long __meminitdata node_boundary_end_pfn[MAX_NUMNODES];
#endif /* CONFIG_MEMORY_HOTPLUG_RESERVE */
- unsigned long __initdata required_kernelcore;
+ static unsigned long __initdata required_kernelcore;
static unsigned long __initdata required_movablecore;
- unsigned long __meminitdata zone_movable_pfn[MAX_NUMNODES];
+ static unsigned long __meminitdata zone_movable_pfn[MAX_NUMNODES];
/* movable_zone is the "real" zone pages in ZONE_MOVABLE are taken from */
int movable_zone;
__free_pages_ok(page, compound_order(page));
}
-static void prep_compound_page(struct page *page, unsigned long order)
+void prep_compound_page(struct page *page, unsigned long order)
{
int i;
int nr_pages = 1 << order;
buddy = __page_find_buddy(page, page_idx, order);
if (!page_is_buddy(page, buddy, order))
- break; /* Move the buddy up one level. */
+ break;
+ /* Our buddy is free, merge with it and move up one order. */
list_del(&buddy->lru);
zone->free_area[order].nr_free--;
rmv_page_order(buddy);
/*
* permit the bootmem allocator to evade page validation on high-order frees
*/
-void __free_pages_bootmem(struct page *page, unsigned int order)
+void __meminit __free_pages_bootmem(struct page *page, unsigned int order)
{
if (order == 0) {
__ClearPageReserved(page);
* Note that start_page and end_pages are not aligned on a pageblock
* boundary. If alignment is required, use move_freepages_block()
*/
-int move_freepages(struct zone *zone,
- struct page *start_page, struct page *end_page,
- int migratetype)
+static int move_freepages(struct zone *zone,
+ struct page *start_page, struct page *end_page,
+ int migratetype)
{
struct page *page;
unsigned long order;
return pages_moved;
}
-int move_freepages_block(struct zone *zone, struct page *page, int migratetype)
+static int move_freepages_block(struct zone *zone, struct page *page,
+ int migratetype)
{
unsigned long start_pfn, end_pfn;
struct page *start_page, *end_page;
/*
* This is the 'heart' of the zoned buddy allocator.
*/
-static struct page *
+struct page *
__alloc_pages_internal(gfp_t gfp_mask, unsigned int order,
struct zonelist *zonelist, nodemask_t *nodemask)
{
got_pg:
return page;
}
-
-struct page *
-__alloc_pages(gfp_t gfp_mask, unsigned int order,
- struct zonelist *zonelist)
-{
- return __alloc_pages_internal(gfp_mask, order, zonelist, NULL);
-}
-
-struct page *
-__alloc_pages_nodemask(gfp_t gfp_mask, unsigned int order,
- struct zonelist *zonelist, nodemask_t *nodemask)
-{
- return __alloc_pages_internal(gfp_mask, order, zonelist, nodemask);
-}
-
-EXPORT_SYMBOL(__alloc_pages);
+EXPORT_SYMBOL(__alloc_pages_internal);
/*
* Common helper functions.
EXPORT_SYMBOL(free_pages);
+/**
+ * alloc_pages_exact - allocate an exact number physically-contiguous pages.
+ * @size: the number of bytes to allocate
+ * @gfp_mask: GFP flags for the allocation
+ *
+ * This function is similar to alloc_pages(), except that it allocates the
+ * minimum number of pages to satisfy the request. alloc_pages() can only
+ * allocate memory in power-of-two pages.
+ *
+ * This function is also limited by MAX_ORDER.
+ *
+ * Memory allocated by this function must be released by free_pages_exact().
+ */
+void *alloc_pages_exact(size_t size, gfp_t gfp_mask)
+{
+ unsigned int order = get_order(size);
+ unsigned long addr;
+
+ addr = __get_free_pages(gfp_mask, order);
+ if (addr) {
+ unsigned long alloc_end = addr + (PAGE_SIZE << order);
+ unsigned long used = addr + PAGE_ALIGN(size);
+
+ split_page(virt_to_page(addr), order);
+ while (used < alloc_end) {
+ free_page(used);
+ used += PAGE_SIZE;
+ }
+ }
+
+ return (void *)addr;
+}
+EXPORT_SYMBOL(alloc_pages_exact);
+
+/**
+ * free_pages_exact - release memory allocated via alloc_pages_exact()
+ * @virt: the value returned by alloc_pages_exact.
+ * @size: size of allocation, same value as passed to alloc_pages_exact().
+ *
+ * Release the memory allocated by a previous call to alloc_pages_exact.
+ */
+void free_pages_exact(void *virt, size_t size)
+{
+ unsigned long addr = (unsigned long)virt;
+ unsigned long end = addr + PAGE_ALIGN(size);
+
+ while (addr < end) {
+ free_page(addr);
+ addr += PAGE_SIZE;
+ }
+}
+EXPORT_SYMBOL(free_pages_exact);
+
static unsigned int nr_free_zone_pages(int offset)
{
struct zoneref *z;
if (system_state == SYSTEM_BOOTING) {
__build_all_zonelists(NULL);
+ mminit_verify_zonelist();
cpuset_init_current_mems_allowed();
} else {
/* we have to stop all cpus to guarantee there is no user
}
page = pfn_to_page(pfn);
set_page_links(page, zone, nid, pfn);
+ mminit_verify_page_links(page, zone, nid, pfn);
init_page_count(page);
reset_page_mapcount(page);
SetPageReserved(page);
return batch;
}
-inline void setup_pageset(struct per_cpu_pageset *p, unsigned long batch)
+static void setup_pageset(struct per_cpu_pageset *p, unsigned long batch)
{
struct per_cpu_pages *pcp;
zone->zone_start_pfn = zone_start_pfn;
+ mminit_dprintk(MMINIT_TRACE, "memmap_init",
+ "Initialising map node %d zone %lu pfns %lu -> %lu\n",
+ pgdat->node_id,
+ (unsigned long)zone_idx(zone),
+ zone_start_pfn, (zone_start_pfn + size));
+
zone_init_free_lists(zone);
return 0;
void __init push_node_boundaries(unsigned int nid,
unsigned long start_pfn, unsigned long end_pfn)
{
- printk(KERN_DEBUG "Entering push_node_boundaries(%u, %lu, %lu)\n",
+ mminit_dprintk(MMINIT_TRACE, "zoneboundary",
+ "Entering push_node_boundaries(%u, %lu, %lu)\n",
nid, start_pfn, end_pfn);
/* Initialise the boundary for this node if necessary */
static void __meminit account_node_boundary(unsigned int nid,
unsigned long *start_pfn, unsigned long *end_pfn)
{
- printk(KERN_DEBUG "Entering account_node_boundary(%u, %lu, %lu)\n",
+ mminit_dprintk(MMINIT_TRACE, "zoneboundary",
+ "Entering account_node_boundary(%u, %lu, %lu)\n",
nid, *start_pfn, *end_pfn);
/* Return if boundary information has not been provided */
* assumption is made that zones within a node are ordered in monotonic
* increasing memory addresses so that the "highest" populated zone is used
*/
-void __init find_usable_zone_for_movable(void)
+static void __init find_usable_zone_for_movable(void)
{
int zone_index;
for (zone_index = MAX_NR_ZONES - 1; zone_index >= 0; zone_index--) {
* highest usable zone for ZONE_MOVABLE. This preserves the assumption that
* zones within a node are in order of monotonic increases memory addresses
*/
-void __meminit adjust_zone_range_for_zone_movable(int nid,
+static void __meminit adjust_zone_range_for_zone_movable(int nid,
unsigned long zone_type,
unsigned long node_start_pfn,
unsigned long node_end_pfn,
* Return the number of holes in a range on a node. If nid is MAX_NUMNODES,
* then all holes in the requested range will be accounted for.
*/
-unsigned long __meminit __absent_pages_in_range(int nid,
+static unsigned long __meminit __absent_pages_in_range(int nid,
unsigned long range_start_pfn,
unsigned long range_end_pfn)
{
PAGE_ALIGN(size * sizeof(struct page)) >> PAGE_SHIFT;
if (realsize >= memmap_pages) {
realsize -= memmap_pages;
- printk(KERN_DEBUG
- " %s zone: %lu pages used for memmap\n",
+ mminit_dprintk(MMINIT_TRACE, "memmap_init",
+ "%s zone: %lu pages used for memmap\n",
zone_names[j], memmap_pages);
} else
printk(KERN_WARNING
/* Account for reserved pages */
if (j == 0 && realsize > dma_reserve) {
realsize -= dma_reserve;
- printk(KERN_DEBUG " %s zone: %lu pages reserved\n",
+ mminit_dprintk(MMINIT_TRACE, "memmap_init",
+ "%s zone: %lu pages reserved\n",
zone_names[0], dma_reserve);
}
#endif /* CONFIG_FLAT_NODE_MEM_MAP */
}
-void __paginginit free_area_init_node(int nid, struct pglist_data *pgdat,
- unsigned long *zones_size, unsigned long node_start_pfn,
- unsigned long *zholes_size)
+void __paginginit free_area_init_node(int nid, unsigned long *zones_size,
+ unsigned long node_start_pfn, unsigned long *zholes_size)
{
+ pg_data_t *pgdat = NODE_DATA(nid);
+
pgdat->node_id = nid;
pgdat->node_start_pfn = node_start_pfn;
calculate_node_totalpages(pgdat, zones_size, zholes_size);
{
int i;
- printk(KERN_DEBUG "Entering add_active_range(%d, %#lx, %#lx) "
- "%d entries of %d used\n",
- nid, start_pfn, end_pfn,
- nr_nodemap_entries, MAX_ACTIVE_REGIONS);
+ mminit_dprintk(MMINIT_TRACE, "memory_register",
+ "Entering add_active_range(%d, %#lx, %#lx) "
+ "%d entries of %d used\n",
+ nid, start_pfn, end_pfn,
+ nr_nodemap_entries, MAX_ACTIVE_REGIONS);
+
+ mminit_validate_memmodel_limits(&start_pfn, &end_pfn);
/* Merge with existing active regions if possible */
for (i = 0; i < nr_nodemap_entries; i++) {
}
/* Find the lowest pfn for a node */
-unsigned long __init find_min_pfn_for_node(int nid)
+static unsigned long __init find_min_pfn_for_node(int nid)
{
int i;
unsigned long min_pfn = ULONG_MAX;
* memory. When they don't, some nodes will have more kernelcore than
* others
*/
-void __init find_zone_movable_pfns_for_nodes(unsigned long *movable_pfn)
+static void __init find_zone_movable_pfns_for_nodes(unsigned long *movable_pfn)
{
int i, nid;
unsigned long usable_startpfn;
early_node_map[i].end_pfn);
/* Initialise every node */
+ mminit_verify_pageflags_layout();
setup_nr_node_ids();
for_each_online_node(nid) {
pg_data_t *pgdat = NODE_DATA(nid);
- free_area_init_node(nid, pgdat, NULL,
+ free_area_init_node(nid, NULL,
find_min_pfn_for_node(nid), NULL);
/* Any memory on that node */
}
#ifndef CONFIG_NEED_MULTIPLE_NODES
-static bootmem_data_t contig_bootmem_data;
-struct pglist_data contig_page_data = { .bdata = &contig_bootmem_data };
-
+struct pglist_data contig_page_data = { .bdata = &bootmem_node_data[0] };
EXPORT_SYMBOL(contig_page_data);
#endif
void __init free_area_init(unsigned long *zones_size)
{
- free_area_init_node(0, NODE_DATA(0), zones_size,
+ free_area_init_node(0, zones_size,
__pa(PAGE_OFFSET) >> PAGE_SHIFT, NULL);
}
file_accessed(filp);
}
-static ssize_t shmem_file_read(struct file *filp, char __user *buf, size_t count, loff_t *ppos)
-{
- read_descriptor_t desc;
-
- if ((ssize_t) count < 0)
- return -EINVAL;
- if (!access_ok(VERIFY_WRITE, buf, count))
- return -EFAULT;
- if (!count)
- return 0;
-
- desc.written = 0;
- desc.count = count;
- desc.arg.buf = buf;
- desc.error = 0;
-
- do_shmem_file_read(filp, ppos, &desc, file_read_actor);
- if (desc.written)
- return desc.written;
- return desc.error;
+static ssize_t shmem_file_aio_read(struct kiocb *iocb,
+ const struct iovec *iov, unsigned long nr_segs, loff_t pos)
+{
+ struct file *filp = iocb->ki_filp;
+ ssize_t retval;
+ unsigned long seg;
+ size_t count;
+ loff_t *ppos = &iocb->ki_pos;
+
+ retval = generic_segment_checks(iov, &nr_segs, &count, VERIFY_WRITE);
+ if (retval)
+ return retval;
+
+ for (seg = 0; seg < nr_segs; seg++) {
+ read_descriptor_t desc;
+
+ desc.written = 0;
+ desc.arg.buf = iov[seg].iov_base;
+ desc.count = iov[seg].iov_len;
+ if (desc.count == 0)
+ continue;
+ desc.error = 0;
+ do_shmem_file_read(filp, ppos, &desc, file_read_actor);
+ retval += desc.written;
+ if (desc.error) {
+ retval = retval ?: desc.error;
+ break;
+ }
+ if (desc.count > 0)
+ break;
+ }
+ return retval;
}
static int shmem_statfs(struct dentry *dentry, struct kstatfs *buf)
.mmap = shmem_mmap,
#ifdef CONFIG_TMPFS
.llseek = generic_file_llseek,
- .read = shmem_file_read,
+ .read = do_sync_read,
.write = do_sync_write,
+ .aio_read = shmem_file_aio_read,
.aio_write = generic_file_aio_write,
.fsync = simple_sync_file,
.splice_read = generic_file_splice_read,
*/
static inline int slob_page(struct slob_page *sp)
{
- return test_bit(PG_active, &sp->flags);
+ return PageSlobPage((struct page *)sp);
}
static inline void set_slob_page(struct slob_page *sp)
{
- __set_bit(PG_active, &sp->flags);
+ __SetPageSlobPage((struct page *)sp);
}
static inline void clear_slob_page(struct slob_page *sp)
{
- __clear_bit(PG_active, &sp->flags);
+ __ClearPageSlobPage((struct page *)sp);
}
/*
*/
static inline int slob_page_free(struct slob_page *sp)
{
- return test_bit(PG_private, &sp->flags);
+ return PageSlobFree((struct page *)sp);
}
static void set_slob_page_free(struct slob_page *sp, struct list_head *list)
{
list_add(&sp->list, list);
- __set_bit(PG_private, &sp->flags);
+ __SetPageSlobFree((struct page *)sp);
}
static inline void clear_slob_page_free(struct slob_page *sp)
{
list_del(&sp->list);
- __clear_bit(PG_private, &sp->flags);
+ __ClearPageSlobFree((struct page *)sp);
}
#define SLOB_UNIT sizeof(slob_t)
* the fast path and disables lockless freelists.
*/
-#define FROZEN (1 << PG_active)
-
#ifdef CONFIG_SLUB_DEBUG
-#define SLABDEBUG (1 << PG_error)
+#define SLABDEBUG 1
#else
#define SLABDEBUG 0
#endif
-static inline int SlabFrozen(struct page *page)
-{
- return page->flags & FROZEN;
-}
-
-static inline void SetSlabFrozen(struct page *page)
-{
- page->flags |= FROZEN;
-}
-
-static inline void ClearSlabFrozen(struct page *page)
-{
- page->flags &= ~FROZEN;
-}
-
-static inline int SlabDebug(struct page *page)
-{
- return page->flags & SLABDEBUG;
-}
-
-static inline void SetSlabDebug(struct page *page)
-{
- page->flags |= SLABDEBUG;
-}
-
-static inline void ClearSlabDebug(struct page *page)
-{
- page->flags &= ~SLABDEBUG;
-}
-
/*
* Issues still to be resolved:
*
}
/* Special debug activities for freeing objects */
- if (!SlabFrozen(page) && !page->freelist)
+ if (!PageSlubFrozen(page) && !page->freelist)
remove_full(s, page);
if (s->flags & SLAB_STORE_USER)
set_track(s, object, TRACK_FREE, addr);
page->flags |= 1 << PG_slab;
if (s->flags & (SLAB_DEBUG_FREE | SLAB_RED_ZONE | SLAB_POISON |
SLAB_STORE_USER | SLAB_TRACE))
- SetSlabDebug(page);
+ __SetPageSlubDebug(page);
start = page_address(page);
int order = compound_order(page);
int pages = 1 << order;
- if (unlikely(SlabDebug(page))) {
+ if (unlikely(SLABDEBUG && PageSlubDebug(page))) {
void *p;
slab_pad_check(s, page);
for_each_object(p, s, page_address(page),
page->objects)
check_object(s, page, p, 0);
- ClearSlabDebug(page);
+ __ClearPageSlubDebug(page);
}
mod_zone_page_state(page_zone(page),
if (slab_trylock(page)) {
list_del(&page->lru);
n->nr_partial--;
- SetSlabFrozen(page);
+ __SetPageSlubFrozen(page);
return 1;
}
return 0;
struct kmem_cache_node *n = get_node(s, page_to_nid(page));
struct kmem_cache_cpu *c = get_cpu_slab(s, smp_processor_id());
- ClearSlabFrozen(page);
+ __ClearPageSlubFrozen(page);
if (page->inuse) {
if (page->freelist) {
stat(c, tail ? DEACTIVATE_TO_TAIL : DEACTIVATE_TO_HEAD);
} else {
stat(c, DEACTIVATE_FULL);
- if (SlabDebug(page) && (s->flags & SLAB_STORE_USER))
+ if (SLABDEBUG && PageSlubDebug(page) &&
+ (s->flags & SLAB_STORE_USER))
add_full(n, page);
}
slab_unlock(page);
object = c->page->freelist;
if (unlikely(!object))
goto another_slab;
- if (unlikely(SlabDebug(c->page)))
+ if (unlikely(SLABDEBUG && PageSlubDebug(c->page)))
goto debug;
c->freelist = object[c->offset];
if (c->page)
flush_slab(s, c);
slab_lock(new);
- SetSlabFrozen(new);
+ __SetPageSlubFrozen(new);
c->page = new;
goto load_freelist;
}
stat(c, FREE_SLOWPATH);
slab_lock(page);
- if (unlikely(SlabDebug(page)))
+ if (unlikely(SLABDEBUG && PageSlubDebug(page)))
goto debug;
checks_ok:
page->freelist = object;
page->inuse--;
- if (unlikely(SlabFrozen(page))) {
+ if (unlikely(PageSlubFrozen(page))) {
stat(c, FREE_FROZEN);
goto out_unlock;
}
s->name, page);
if (s->flags & DEBUG_DEFAULT_FLAGS) {
- if (!SlabDebug(page))
- printk(KERN_ERR "SLUB %s: SlabDebug not set "
+ if (!PageSlubDebug(page))
+ printk(KERN_ERR "SLUB %s: SlubDebug not set "
"on slab 0x%p\n", s->name, page);
} else {
- if (SlabDebug(page))
- printk(KERN_ERR "SLUB %s: SlabDebug set on "
+ if (PageSlubDebug(page))
+ printk(KERN_ERR "SLUB %s: SlubDebug set on "
"slab 0x%p\n", s->name, page);
}
}
#include <asm/dma.h>
#include <asm/pgalloc.h>
#include <asm/pgtable.h>
+#include "internal.h"
/*
* Permanent SPARSEMEM data:
return (section->section_mem_map >> SECTION_NID_SHIFT);
}
-/* Record a memory area against a node. */
-void __init memory_present(int nid, unsigned long start, unsigned long end)
+/* Validate the physical addressing limitations of the model */
+void __meminit mminit_validate_memmodel_limits(unsigned long *start_pfn,
+ unsigned long *end_pfn)
{
- unsigned long max_arch_pfn = 1UL << (MAX_PHYSMEM_BITS-PAGE_SHIFT);
- unsigned long pfn;
+ unsigned long max_sparsemem_pfn = 1UL << (MAX_PHYSMEM_BITS-PAGE_SHIFT);
/*
* Sanity checks - do not allow an architecture to pass
* in larger pfns than the maximum scope of sparsemem:
*/
- if (start >= max_arch_pfn)
- return;
- if (end >= max_arch_pfn)
- end = max_arch_pfn;
+ if (*start_pfn > max_sparsemem_pfn) {
+ mminit_dprintk(MMINIT_WARNING, "pfnvalidation",
+ "Start of range %lu -> %lu exceeds SPARSEMEM max %lu\n",
+ *start_pfn, *end_pfn, max_sparsemem_pfn);
+ WARN_ON_ONCE(1);
+ *start_pfn = max_sparsemem_pfn;
+ *end_pfn = max_sparsemem_pfn;
+ }
+
+ if (*end_pfn > max_sparsemem_pfn) {
+ mminit_dprintk(MMINIT_WARNING, "pfnvalidation",
+ "End of range %lu -> %lu exceeds SPARSEMEM max %lu\n",
+ *start_pfn, *end_pfn, max_sparsemem_pfn);
+ WARN_ON_ONCE(1);
+ *end_pfn = max_sparsemem_pfn;
+ }
+}
+
+/* Record a memory area against a node. */
+void __init memory_present(int nid, unsigned long start, unsigned long end)
+{
+ unsigned long pfn;
start &= PAGE_SECTION_MASK;
+ mminit_validate_memmodel_limits(&start, &end);
for (pfn = start; pfn < end; pfn += PAGES_PER_SECTION) {
unsigned long section = pfn_to_section_nr(pfn);
struct mem_section *ms;
unsigned long pfn;
unsigned long nr_pages = 0;
+ mminit_validate_memmodel_limits(&start_pfn, &end_pfn);
for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) {
if (nid != early_pfn_to_nid(pfn))
continue;
}
#endif /* CONFIG_MEMORY_HOTPLUG */
+#ifdef CONFIG_MEMORY_HOTREMOVE
+static unsigned long * __init
+sparse_early_usemap_alloc_pgdat_section(struct pglist_data *pgdat)
+{
+ unsigned long section_nr;
+
+ /*
+ * A page may contain usemaps for other sections preventing the
+ * page being freed and making a section unremovable while
+ * other sections referencing the usemap retmain active. Similarly,
+ * a pgdat can prevent a section being removed. If section A
+ * contains a pgdat and section B contains the usemap, both
+ * sections become inter-dependent. This allocates usemaps
+ * from the same section as the pgdat where possible to avoid
+ * this problem.
+ */
+ section_nr = pfn_to_section_nr(__pa(pgdat) >> PAGE_SHIFT);
+ return alloc_bootmem_section(usemap_size(), section_nr);
+}
+
+static void __init check_usemap_section_nr(int nid, unsigned long *usemap)
+{
+ unsigned long usemap_snr, pgdat_snr;
+ static unsigned long old_usemap_snr = NR_MEM_SECTIONS;
+ static unsigned long old_pgdat_snr = NR_MEM_SECTIONS;
+ struct pglist_data *pgdat = NODE_DATA(nid);
+ int usemap_nid;
+
+ usemap_snr = pfn_to_section_nr(__pa(usemap) >> PAGE_SHIFT);
+ pgdat_snr = pfn_to_section_nr(__pa(pgdat) >> PAGE_SHIFT);
+ if (usemap_snr == pgdat_snr)
+ return;
+
+ if (old_usemap_snr == usemap_snr && old_pgdat_snr == pgdat_snr)
+ /* skip redundant message */
+ return;
+
+ old_usemap_snr = usemap_snr;
+ old_pgdat_snr = pgdat_snr;
+
+ usemap_nid = sparse_early_nid(__nr_to_section(usemap_snr));
+ if (usemap_nid != nid) {
+ printk(KERN_INFO
+ "node %d must be removed before remove section %ld\n",
+ nid, usemap_snr);
+ return;
+ }
+ /*
+ * There is a circular dependency.
+ * Some platforms allow un-removable section because they will just
+ * gather other removable sections for dynamic partitioning.
+ * Just notify un-removable section's number here.
+ */
+ printk(KERN_INFO "Section %ld and %ld (node %d)", usemap_snr,
+ pgdat_snr, nid);
+ printk(KERN_CONT
+ " have a circular dependency on usemap and pgdat allocations\n");
+}
+#else
+static unsigned long * __init
+sparse_early_usemap_alloc_pgdat_section(struct pglist_data *pgdat)
+{
+ return NULL;
+}
+
+static void __init check_usemap_section_nr(int nid, unsigned long *usemap)
+{
+}
+#endif /* CONFIG_MEMORY_HOTREMOVE */
+
static unsigned long *__init sparse_early_usemap_alloc(unsigned long pnum)
{
unsigned long *usemap;
struct mem_section *ms = __nr_to_section(pnum);
int nid = sparse_early_nid(ms);
- usemap = alloc_bootmem_node(NODE_DATA(nid), usemap_size());
+ usemap = sparse_early_usemap_alloc_pgdat_section(NODE_DATA(nid));
if (usemap)
return usemap;
+ usemap = alloc_bootmem_node(NODE_DATA(nid), usemap_size());
+ if (usemap) {
+ check_usemap_section_nr(nid, usemap);
+ return usemap;
+ }
+
/* Stupid: suppress gcc warning for SPARSEMEM && !NUMA */
nid = 0;
/* How many pages do we try to swap or page in/out together? */
int page_cluster;
-static DEFINE_PER_CPU(struct pagevec, lru_add_pvecs) = { 0, };
-static DEFINE_PER_CPU(struct pagevec, lru_add_active_pvecs) = { 0, };
-static DEFINE_PER_CPU(struct pagevec, lru_rotate_pvecs) = { 0, };
+static DEFINE_PER_CPU(struct pagevec, lru_add_pvecs);
+static DEFINE_PER_CPU(struct pagevec, lru_add_active_pvecs);
+static DEFINE_PER_CPU(struct pagevec, lru_rotate_pvecs);
/*
* This path almost never happens for VM activity - pages are normally
*/
#define ACCT_THRESHOLD max(16, NR_CPUS * 2)
-static DEFINE_PER_CPU(long, committed_space) = 0;
+static DEFINE_PER_CPU(long, committed_space);
void vm_acct_memory(long pages)
{
unsigned int nr_swapfiles;
long total_swap_pages;
static int swap_overflow;
+static int least_priority;
static const char Bad_file[] = "Bad swap file entry ";
static const char Unused_file[] = "Unused swap file entry ";
/* just pick something that's safe... */
swap_list.next = swap_list.head;
}
+ if (p->prio < 0) {
+ for (i = p->next; i >= 0; i = swap_info[i].next)
+ swap_info[i].prio = p->prio--;
+ least_priority++;
+ }
nr_swap_pages -= p->pages;
total_swap_pages -= p->pages;
p->flags &= ~SWP_WRITEOK;
if (err) {
/* re-insert swap space back into swap_list */
spin_lock(&swap_lock);
- for (prev = -1, i = swap_list.head; i >= 0; prev = i, i = swap_info[i].next)
+ if (p->prio < 0)
+ p->prio = --least_priority;
+ prev = -1;
+ for (i = swap_list.head; i >= 0; i = swap_info[i].next) {
if (p->prio >= swap_info[i].prio)
break;
+ prev = i;
+ }
p->next = i;
if (prev < 0)
swap_list.head = swap_list.next = p - swap_info;
unsigned int type;
int i, prev;
int error;
- static int least_priority;
union swap_header *swap_header = NULL;
int swap_header_version;
unsigned int nr_good_pages = 0;
sector_t span;
unsigned long maxpages = 1;
int swapfilesize;
- unsigned short *swap_map;
+ unsigned short *swap_map = NULL;
struct page *page = NULL;
struct inode *inode = NULL;
int did_down = 0;
}
if (type >= nr_swapfiles)
nr_swapfiles = type+1;
+ memset(p, 0, sizeof(*p));
INIT_LIST_HEAD(&p->extent_list);
p->flags = SWP_USED;
- p->swap_file = NULL;
- p->old_block_size = 0;
- p->swap_map = NULL;
- p->lowest_bit = 0;
- p->highest_bit = 0;
- p->cluster_nr = 0;
- p->inuse_pages = 0;
p->next = -1;
- if (swap_flags & SWAP_FLAG_PREFER) {
- p->prio =
- (swap_flags & SWAP_FLAG_PRIO_MASK)>>SWAP_FLAG_PRIO_SHIFT;
- } else {
- p->prio = --least_priority;
- }
spin_unlock(&swap_lock);
name = getname(specialfile);
error = PTR_ERR(name);
goto bad_swap;
/* OK, set up the swap map and apply the bad block list */
- if (!(p->swap_map = vmalloc(maxpages * sizeof(short)))) {
+ swap_map = vmalloc(maxpages * sizeof(short));
+ if (!swap_map) {
error = -ENOMEM;
goto bad_swap;
}
error = 0;
- memset(p->swap_map, 0, maxpages * sizeof(short));
+ memset(swap_map, 0, maxpages * sizeof(short));
for (i = 0; i < swap_header->info.nr_badpages; i++) {
int page_nr = swap_header->info.badpages[i];
if (page_nr <= 0 || page_nr >= swap_header->info.last_page)
error = -EINVAL;
else
- p->swap_map[page_nr] = SWAP_MAP_BAD;
+ swap_map[page_nr] = SWAP_MAP_BAD;
}
nr_good_pages = swap_header->info.last_page -
swap_header->info.nr_badpages -
}
if (nr_good_pages) {
- p->swap_map[0] = SWAP_MAP_BAD;
+ swap_map[0] = SWAP_MAP_BAD;
p->max = maxpages;
p->pages = nr_good_pages;
nr_extents = setup_swap_extents(p, &span);
mutex_lock(&swapon_mutex);
spin_lock(&swap_lock);
+ if (swap_flags & SWAP_FLAG_PREFER)
+ p->prio =
+ (swap_flags & SWAP_FLAG_PRIO_MASK) >> SWAP_FLAG_PRIO_SHIFT;
+ else
+ p->prio = --least_priority;
+ p->swap_map = swap_map;
p->flags = SWP_ACTIVE;
nr_swap_pages += nr_good_pages;
total_swap_pages += nr_good_pages;
destroy_swap_extents(p);
bad_swap_2:
spin_lock(&swap_lock);
- swap_map = p->swap_map;
p->swap_file = NULL;
- p->swap_map = NULL;
p->flags = 0;
- if (!(swap_flags & SWAP_FLAG_PREFER))
- ++least_priority;
spin_unlock(&swap_lock);
vfree(swap_map);
if (swap_file)
read_unlock(&vmlist_lock);
}
+static void show_numa_info(struct seq_file *m, struct vm_struct *v)
+{
+ if (NUMA_BUILD) {
+ unsigned int nr, *counters = m->private;
+
+ if (!counters)
+ return;
+
+ memset(counters, 0, nr_node_ids * sizeof(unsigned int));
+
+ for (nr = 0; nr < v->nr_pages; nr++)
+ counters[page_to_nid(v->pages[nr])]++;
+
+ for_each_node_state(nr, N_HIGH_MEMORY)
+ if (counters[nr])
+ seq_printf(m, " N%u=%u", nr, counters[nr]);
+ }
+}
+
static int s_show(struct seq_file *m, void *p)
{
struct vm_struct *v = p;
if (v->flags & VM_VPAGES)
seq_printf(m, " vpages");
+ show_numa_info(m, v);
seq_putc(m, '\n');
return 0;
}
#include <linux/err.h>
#include <linux/module.h>
#include <linux/cpu.h>
+#include <linux/vmstat.h>
#include <linux/sched.h>
#ifdef CONFIG_VM_EVENT_COUNTERS
int fd, ret;
csocket->sk->sk_allocation = GFP_NOIO;
- fd = sock_map_fd(csocket);
+ fd = sock_map_fd(csocket, 0);
if (fd < 0) {
P9_EPRINTK(KERN_ERR, "p9_socket_open: failed to map fd\n");
return fd;
/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[18]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
+static unsigned char nas[19]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3)};
+ AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
+ AL(6)};
#undef AL
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
return sys_recvmsg(fd, (struct msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
}
+asmlinkage long compat_sys_paccept(int fd, struct sockaddr __user *upeer_sockaddr,
+ int __user *upeer_addrlen,
+ const compat_sigset_t __user *sigmask,
+ compat_size_t sigsetsize, int flags)
+{
+ compat_sigset_t ss32;
+ sigset_t ksigmask, sigsaved;
+ int ret;
+
+ if (sigmask) {
+ if (sigsetsize != sizeof(compat_sigset_t))
+ return -EINVAL;
+ if (copy_from_user(&ss32, sigmask, sizeof(ss32)))
+ return -EFAULT;
+ sigset_from_compat(&ksigmask, &ss32);
+
+ sigdelsetmask(&ksigmask, sigmask(SIGKILL)|sigmask(SIGSTOP));
+ sigprocmask(SIG_SETMASK, &ksigmask, &sigsaved);
+ }
+
+ ret = do_accept(fd, upeer_sockaddr, upeer_addrlen, flags);
+
+ if (ret == -ERESTARTNOHAND) {
+ /*
+ * Don't restore the signal mask yet. Let do_signal() deliver
+ * the signal on the way back to userspace, before the signal
+ * mask is restored.
+ */
+ if (sigmask) {
+ memcpy(¤t->saved_sigmask, &sigsaved,
+ sizeof(sigsaved));
+ set_restore_sigmask();
+ }
+ } else if (sigmask)
+ sigprocmask(SIG_SETMASK, &sigsaved, NULL);
+
+ return ret;
+}
+
asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
{
int ret;
u32 a[6];
u32 a0, a1;
- if (call < SYS_SOCKET || call > SYS_RECVMSG)
+ if (call < SYS_SOCKET || call > SYS_PACCEPT)
return -EINVAL;
if (copy_from_user(a, args, nas[call]))
return -EFAULT;
ret = sys_listen(a0, a1);
break;
case SYS_ACCEPT:
- ret = sys_accept(a0, compat_ptr(a1), compat_ptr(a[2]));
+ ret = do_accept(a0, compat_ptr(a1), compat_ptr(a[2]), 0);
break;
case SYS_GETSOCKNAME:
ret = sys_getsockname(a0, compat_ptr(a1), compat_ptr(a[2]));
case SYS_RECVMSG:
ret = compat_sys_recvmsg(a0, compat_ptr(a1), a[2]);
break;
+ case SYS_PACCEPT:
+ ret = compat_sys_paccept(a0, compat_ptr(a1), compat_ptr(a[2]),
+ compat_ptr(a[3]), a[4], a[5]);
+ break;
default:
ret = -EINVAL;
break;
void __netif_schedule(struct Qdisc *q)
{
- if (WARN_ON_ONCE(q == &noop_qdisc))
- return;
-
if (!test_and_set_bit(__QDISC_STATE_SCHED, &q->state)) {
struct softnet_data *sd;
unsigned long flags;
"clock-AF_ASH" , "clock-AF_ECONET" , "clock-AF_ATMSVC" ,
"clock-21" , "clock-AF_SNA" , "clock-AF_IRDA" ,
"clock-AF_PPPOX" , "clock-AF_WANPIPE" , "clock-AF_LLC" ,
- "clock-27" , "clock-28" , "clock-29" ,
+ "clock-27" , "clock-28" , "clock-AF_CAN" ,
"clock-AF_TIPC" , "clock-AF_BLUETOOTH", "clock-AF_IUCV" ,
"clock-AF_RXRPC" , "clock-AF_MAX"
};
tristate "Security table"
depends on IP_NF_IPTABLES
depends on SECURITY
- default m if NETFILTER_ADVANCED=n
+ depends on NETFILTER_ADVANCED
help
This option adds a `security' table to iptables, for use
with Mandatory Access Control (MAC) policy.
* log. Something worked...
*/
sk->sk_err_soft = 0;
+ icsk->icsk_probes_out = 0;
tp->rcv_tstamp = tcp_time_stamp;
prior_packets = tp->packets_out;
if (!prior_packets)
return 1;
no_queue:
- icsk->icsk_probes_out = 0;
-
/* If this ack opens up a zero window, clear backoff. It was
* being used to time the probes, and is probably far higher than
* it needs to be for normal retransmission.
tristate "Security table"
depends on IP6_NF_IPTABLES
depends on SECURITY
- default m if NETFILTER_ADVANCED=n
+ depends on NETFILTER_ADVANCED
help
This option adds a `security' table to iptables, for use
with Mandatory Access Control (MAC) policy.
opt.limit = q->limit;
opt.divisor = SFQ_HASH_DIVISOR;
- opt.flows = q->limit;
+ opt.flows = 0;
+ if (q->tail != SFQ_DEPTH) {
+ unsigned int i;
+
+ for (i = 0; i < SFQ_HASH_DIVISOR; i++)
+ if (q->ht[i] != SFQ_DEPTH)
+ opt.flows++;
+ }
NLA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
goto out;
/* Map the socket to an unused fd that can be returned to the user. */
- retval = sock_map_fd(newsock);
+ retval = sock_map_fd(newsock, 0);
if (retval < 0) {
sock_release(newsock);
goto out;
#include <linux/file.h>
#include <linux/net.h>
#include <linux/interrupt.h>
+#include <linux/thread_info.h>
#include <linux/rcupdate.h>
#include <linux/netdevice.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/mutex.h>
+#include <linux/thread_info.h>
#include <linux/wanrouter.h>
#include <linux/if_bridge.h>
#include <linux/if_frad.h>
* but we take care of internal coherence yet.
*/
-static int sock_alloc_fd(struct file **filep)
+static int sock_alloc_fd(struct file **filep, int flags)
{
int fd;
- fd = get_unused_fd();
+ fd = get_unused_fd_flags(flags);
if (likely(fd >= 0)) {
struct file *file = get_empty_filp();
return fd;
}
-static int sock_attach_fd(struct socket *sock, struct file *file)
+static int sock_attach_fd(struct socket *sock, struct file *file, int flags)
{
struct dentry *dentry;
struct qstr name = { .name = "" };
init_file(file, sock_mnt, dentry, FMODE_READ | FMODE_WRITE,
&socket_file_ops);
SOCK_INODE(sock)->i_fop = &socket_file_ops;
- file->f_flags = O_RDWR;
+ file->f_flags = O_RDWR | (flags & O_NONBLOCK);
file->f_pos = 0;
file->private_data = sock;
return 0;
}
-int sock_map_fd(struct socket *sock)
+int sock_map_fd(struct socket *sock, int flags)
{
struct file *newfile;
- int fd = sock_alloc_fd(&newfile);
+ int fd = sock_alloc_fd(&newfile, flags);
if (likely(fd >= 0)) {
- int err = sock_attach_fd(sock, newfile);
+ int err = sock_attach_fd(sock, newfile, flags);
if (unlikely(err < 0)) {
put_filp(newfile);
{
int retval;
struct socket *sock;
+ int flags;
+
+ /* Check the SOCK_* constants for consistency. */
+ BUILD_BUG_ON(SOCK_CLOEXEC != O_CLOEXEC);
+ BUILD_BUG_ON((SOCK_MAX | SOCK_TYPE_MASK) != SOCK_TYPE_MASK);
+ BUILD_BUG_ON(SOCK_CLOEXEC & SOCK_TYPE_MASK);
+ BUILD_BUG_ON(SOCK_NONBLOCK & SOCK_TYPE_MASK);
+
+ flags = type & ~SOCK_TYPE_MASK;
+ if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK))
+ return -EINVAL;
+ type &= SOCK_TYPE_MASK;
+
+ if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK))
+ flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK;
retval = sock_create(family, type, protocol, &sock);
if (retval < 0)
goto out;
- retval = sock_map_fd(sock);
+ retval = sock_map_fd(sock, flags & (O_CLOEXEC | O_NONBLOCK));
if (retval < 0)
goto out_release;
struct socket *sock1, *sock2;
int fd1, fd2, err;
struct file *newfile1, *newfile2;
+ int flags;
+
+ flags = type & ~SOCK_TYPE_MASK;
+ if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK))
+ return -EINVAL;
+ type &= SOCK_TYPE_MASK;
+
+ if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK))
+ flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK;
/*
* Obtain the first socket and check if the underlying protocol
if (err < 0)
goto out_release_both;
- fd1 = sock_alloc_fd(&newfile1);
+ fd1 = sock_alloc_fd(&newfile1, flags & O_CLOEXEC);
if (unlikely(fd1 < 0)) {
err = fd1;
goto out_release_both;
}
- fd2 = sock_alloc_fd(&newfile2);
+ fd2 = sock_alloc_fd(&newfile2, flags & O_CLOEXEC);
if (unlikely(fd2 < 0)) {
err = fd2;
put_filp(newfile1);
goto out_release_both;
}
- err = sock_attach_fd(sock1, newfile1);
+ err = sock_attach_fd(sock1, newfile1, flags & O_NONBLOCK);
if (unlikely(err < 0)) {
goto out_fd2;
}
- err = sock_attach_fd(sock2, newfile2);
+ err = sock_attach_fd(sock2, newfile2, flags & O_NONBLOCK);
if (unlikely(err < 0)) {
fput(newfile1);
goto out_fd1;
* clean when we restucture accept also.
*/
-asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr,
- int __user *upeer_addrlen)
+long do_accept(int fd, struct sockaddr __user *upeer_sockaddr,
+ int __user *upeer_addrlen, int flags)
{
struct socket *sock, *newsock;
struct file *newfile;
int err, len, newfd, fput_needed;
struct sockaddr_storage address;
+ if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK))
+ return -EINVAL;
+
+ if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK))
+ flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK;
+
sock = sockfd_lookup_light(fd, &err, &fput_needed);
if (!sock)
goto out;
*/
__module_get(newsock->ops->owner);
- newfd = sock_alloc_fd(&newfile);
+ newfd = sock_alloc_fd(&newfile, flags & O_CLOEXEC);
if (unlikely(newfd < 0)) {
err = newfd;
sock_release(newsock);
goto out_put;
}
- err = sock_attach_fd(newsock, newfile);
+ err = sock_attach_fd(newsock, newfile, flags & O_NONBLOCK);
if (err < 0)
goto out_fd_simple;
goto out_put;
}
+#ifdef HAVE_SET_RESTORE_SIGMASK
+asmlinkage long sys_paccept(int fd, struct sockaddr __user *upeer_sockaddr,
+ int __user *upeer_addrlen,
+ const sigset_t __user *sigmask,
+ size_t sigsetsize, int flags)
+{
+ sigset_t ksigmask, sigsaved;
+ int ret;
+
+ if (sigmask) {
+ /* XXX: Don't preclude handling different sized sigset_t's. */
+ if (sigsetsize != sizeof(sigset_t))
+ return -EINVAL;
+ if (copy_from_user(&ksigmask, sigmask, sizeof(ksigmask)))
+ return -EFAULT;
+
+ sigdelsetmask(&ksigmask, sigmask(SIGKILL)|sigmask(SIGSTOP));
+ sigprocmask(SIG_SETMASK, &ksigmask, &sigsaved);
+ }
+
+ ret = do_accept(fd, upeer_sockaddr, upeer_addrlen, flags);
+
+ if (ret < 0 && signal_pending(current)) {
+ /*
+ * Don't restore the signal mask yet. Let do_signal() deliver
+ * the signal on the way back to userspace, before the signal
+ * mask is restored.
+ */
+ if (sigmask) {
+ memcpy(¤t->saved_sigmask, &sigsaved,
+ sizeof(sigsaved));
+ set_restore_sigmask();
+ }
+ } else if (sigmask)
+ sigprocmask(SIG_SETMASK, &sigsaved, NULL);
+
+ return ret;
+}
+#else
+asmlinkage long sys_paccept(int fd, struct sockaddr __user *upeer_sockaddr,
+ int __user *upeer_addrlen,
+ const sigset_t __user *sigmask,
+ size_t sigsetsize, int flags)
+{
+ /* The platform does not support restoring the signal mask in the
+ * return path. So we do not allow using paccept() with a signal
+ * mask. */
+ if (sigmask)
+ return -EINVAL;
+
+ return do_accept(fd, upeer_sockaddr, upeer_addrlen, flags);
+}
+#endif
+
+asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr,
+ int __user *upeer_addrlen)
+{
+ return do_accept(fd, upeer_sockaddr, upeer_addrlen, 0);
+}
+
/*
* Attempt to connect to a socket with the server address. The address
* is in user space so we verify it is OK and move it to kernel space.
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
-static const unsigned char nargs[18]={
+static const unsigned char nargs[19]={
AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3)
+ AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
+ AL(6)
};
#undef AL
unsigned long a0, a1;
int err;
- if (call < 1 || call > SYS_RECVMSG)
+ if (call < 1 || call > SYS_PACCEPT)
return -EINVAL;
/* copy_from_user should be SMP safe. */
break;
case SYS_ACCEPT:
err =
- sys_accept(a0, (struct sockaddr __user *)a1,
- (int __user *)a[2]);
+ do_accept(a0, (struct sockaddr __user *)a1,
+ (int __user *)a[2], 0);
break;
case SYS_GETSOCKNAME:
err =
case SYS_RECVMSG:
err = sys_recvmsg(a0, (struct msghdr __user *)a1, a[2]);
break;
+ case SYS_PACCEPT:
+ err =
+ sys_paccept(a0, (struct sockaddr __user *)a1,
+ (int __user *)a[2],
+ (const sigset_t __user *) a[3],
+ a[4], a[5]);
+ break;
default:
err = -EINVAL;
break;
my $P = $0;
$P =~ s@.*/@@g;
-my $V = '0.19';
+my $V = '0.21';
use Getopt::Long qw(:config no_auto_abbrev);
my $tree = 1;
my $chk_signoff = 1;
my $chk_patch = 1;
-my $tst_type = 0;
my $tst_only;
my $emacs = 0;
my $terse = 0;
'summary-file!' => \$summary_file,
'debug=s' => \%debug,
- 'test-type!' => \$tst_type,
'test-only=s' => \$tst_only,
) or exit;
my $dbg_values = 0;
my $dbg_possible = 0;
+my $dbg_type = 0;
for my $key (keys %debug) {
eval "\${dbg_$key} = '$debug{$key}';"
}
);
sub build_types {
- my $mods = "(?: \n" . join("|\n ", @modifierList) . "\n)";
- my $all = "(?: \n" . join("|\n ", @typeList) . "\n)";
+ my $mods = "(?x: \n" . join("|\n ", @modifierList) . "\n)";
+ my $all = "(?x: \n" . join("|\n ", @typeList) . "\n)";
+ $Modifier = qr{(?:$Attribute|$Sparse|$mods)};
$NonptrType = qr{
- (?:const\s+)?
- (?:$mods\s+)?
+ (?:$Modifier\s+|const\s+)*
(?:
(?:typeof|__typeof__)\s*\(\s*\**\s*$Ident\s*\)|
(?:${all}\b)
)
- (?:\s+$Sparse|\s+const)*
+ (?:\s+$Modifier|\s+const)*
}x;
$Type = qr{
$NonptrType
(?:\s*\*+\s*const|\s*\*+|(?:\s*\[\s*\])+)?
- (?:\s+$Inline|\s+$Sparse|\s+$Attribute|\s+$mods)*
+ (?:\s+$Inline|\s+$Modifier)*
}x;
$Declare = qr{(?:$Storage\s+)?$Type};
- $Modifier = qr{(?:$Attribute|$Sparse|$mods)};
}
build_types();
}
$off++;
}
+ # We are truly at the end, so shuffle to the next line.
if ($off == $len) {
+ $loff = $len + 1;
$line++;
$remain--;
}
my ($first_line, $end_line) = @_;
# Catch a comment on the end of the line itself.
- my ($current_comment) = ($rawlines[$end_line - 1] =~ m@.*(/\*.*\*/)\s*$@);
+ my ($current_comment) = ($rawlines[$end_line - 1] =~ m@.*(/\*.*\*/)\s*(?:\\\s*)?$@);
return $current_comment if (defined $current_comment);
# Look through the context and try and figure out if there is a
my $av_preprocessor = 0;
my $av_pending;
my @av_paren_type;
+my $av_pend_colon;
sub annotate_reset {
$av_preprocessor = 0;
$av_pending = '_';
@av_paren_type = ('E');
+ $av_pend_colon = 'O';
}
sub annotate_values {
my ($stream, $type) = @_;
my $res;
+ my $var = '_' x length($stream);
my $cur = $stream;
print "$stream\n" if ($dbg_values > 1);
$av_preprocessor = 0;
}
- } elsif ($cur =~ /^($Type)/) {
+ } elsif ($cur =~ /^($Type)\s*(?:$Ident|,|\)|\()/) {
print "DECLARE($1)\n" if ($dbg_values > 1);
$type = 'T';
+ } elsif ($cur =~ /^($Modifier)\s*/) {
+ print "MODIFIER($1)\n" if ($dbg_values > 1);
+ $type = 'T';
+
} elsif ($cur =~ /^(\#\s*define\s*$Ident)(\(?)/o) {
print "DEFINE($1,$2)\n" if ($dbg_values > 1);
$av_preprocessor = 1;
$av_pending = 'N';
$type = 'N';
- } elsif ($cur =~/^(return|case|else)/o) {
+ } elsif ($cur =~/^(case)/o) {
+ print "CASE($1)\n" if ($dbg_values > 1);
+ $av_pend_colon = 'C';
+ $type = 'N';
+
+ } elsif ($cur =~/^(return|else|goto)/o) {
print "KEYWORD($1)\n" if ($dbg_values > 1);
$type = 'N';
print "PAREN('$1')\n" if ($dbg_values > 1);
}
- } elsif ($cur =~ /^($Ident)\(/o) {
+ } elsif ($cur =~ /^($Ident)\s*\(/o) {
print "FUNC($1)\n" if ($dbg_values > 1);
+ $type = 'V';
$av_pending = 'V';
+ } elsif ($cur =~ /^($Ident\s*):/) {
+ if ($type eq 'E') {
+ $av_pend_colon = 'L';
+ } elsif ($type eq 'T') {
+ $av_pend_colon = 'B';
+ }
+ print "IDENT_COLON($1,$type>$av_pend_colon)\n" if ($dbg_values > 1);
+ $type = 'V';
+
} elsif ($cur =~ /^($Ident|$Constant)/o) {
print "IDENT($1)\n" if ($dbg_values > 1);
$type = 'V';
} elsif ($cur =~/^(;|{|})/) {
print "END($1)\n" if ($dbg_values > 1);
$type = 'E';
+ $av_pend_colon = 'O';
+
+ } elsif ($cur =~ /^(\?)/o) {
+ print "QUESTION($1)\n" if ($dbg_values > 1);
+ $type = 'N';
- } elsif ($cur =~ /^(;|\?|:|\[)/o) {
+ } elsif ($cur =~ /^(:)/o) {
+ print "COLON($1,$av_pend_colon)\n" if ($dbg_values > 1);
+
+ substr($var, length($res), 1, $av_pend_colon);
+ if ($av_pend_colon eq 'C' || $av_pend_colon eq 'L') {
+ $type = 'E';
+ } else {
+ $type = 'N';
+ }
+ $av_pend_colon = 'O';
+
+ } elsif ($cur =~ /^(;|\[)/o) {
print "CLOSE($1)\n" if ($dbg_values > 1);
$type = 'N';
+ } elsif ($cur =~ /^(-(?![->])|\+(?!\+)|\*|\&(?!\&))/o) {
+ my $variant;
+
+ print "OPV($1)\n" if ($dbg_values > 1);
+ if ($type eq 'V') {
+ $variant = 'B';
+ } else {
+ $variant = 'U';
+ }
+
+ substr($var, length($res), 1, $variant);
+ $type = 'N';
+
} elsif ($cur =~ /^($Operators)/o) {
print "OP($1)\n" if ($dbg_values > 1);
if ($1 ne '++' && $1 ne '--') {
}
}
- return $res;
+ return ($res, $var);
}
sub possible {
my ($possible, $line) = @_;
print "CHECK<$possible> ($line)\n" if ($dbg_possible > 1);
- if ($possible !~ /^(?:$Storage|$Type|DEFINE_\S+)$/ &&
+ if ($possible !~ /^(?:$Modifier|$Storage|$Type|DEFINE_\S+)$/ &&
$possible ne 'goto' && $possible ne 'return' &&
$possible ne 'case' && $possible ne 'else' &&
- $possible ne 'asm' &&
+ $possible ne 'asm' && $possible ne '__asm__' &&
$possible !~ /^(typedef|struct|enum)\b/) {
# Check for modifiers.
$possible =~ s/\s*$Storage\s*//g;
} elsif ($possible =~ /\s/) {
$possible =~ s/\s*$Type\s*//g;
- warn "MODIFIER: $possible ($line)\n" if ($dbg_possible);
- push(@modifierList, $possible);
+ for my $modifier (split(' ', $possible)) {
+ warn "MODIFIER: $modifier ($possible) ($line)\n" if ($dbg_possible);
+ push(@modifierList, $modifier);
+ }
} else {
warn "POSSIBLE: $possible ($line)\n" if ($dbg_possible);
}
#80 column limit
if ($line =~ /^\+/ && $prevrawline !~ /\/\*\*/ &&
- $rawline !~ /^.\s*\*\s*\@$Ident\s/ && $length > 80)
+ $rawline !~ /^.\s*\*\s*\@$Ident\s/ &&
+ $line !~ /^\+\s*printk\s*\(\s*(?:KERN_\S+\s*)?"[X\t]*"\s*(?:,|\)\s*;)\s*$/ &&
+ $length > 80)
{
WARN("line over 80 characters\n" . $herecurr);
}
}
# Check for potential 'bare' types
- my ($stat, $cond);
+ my ($stat, $cond, $line_nr_next, $remain_next);
if ($realcnt && $line =~ /.\s*\S/) {
- ($stat, $cond) = ctx_statement_block($linenr,
- $realcnt, 0);
+ ($stat, $cond, $line_nr_next, $remain_next) =
+ ctx_statement_block($linenr, $realcnt, 0);
$stat =~ s/\n./\n /g;
$cond =~ s/\n./\n /g;
} elsif ($s =~ /^.\s*$Ident\s*\(/s) {
# declarations always start with types
- } elsif ($prev_values eq 'E' && $s =~ /^.\s*(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?((?:\s*$Ident)+)\b(?:\s+$Sparse)?\s*\**\s*(?:$Ident|\(\*[^\)]*\))\s*(?:;|=|,|\()/s) {
+ } elsif ($prev_values eq 'E' && $s =~ /^.\s*(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?((?:\s*$Ident)+?)\b(?:\s+$Sparse)?\s*\**\s*(?:$Ident|\(\*[^\)]*\))(?:\s*$Modifier)?\s*(?:;|=|,|\()/s) {
my $type = $1;
$type =~ s/\s+/ /g;
possible($type, "A:" . $s);
ERROR("switch and case should be at the same indent\n$hereline$err");
}
}
+ if ($line =~ /^.\s*(?:case\s*.*|default\s*):/g &&
+ $line !~ /\G(?:\s*{)?(?:\s*$;*)(?:\s*\\)?\s*$/g) {
+ ERROR("trailing statements should be on next line\n" . $herecurr);
+ }
# if/while/etc brace do not go on next line, unless defining a do while loop,
# or if that brace on the next line is for something else
my $pre_ctx = "$1$2";
my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, 0);
- my $ctx_ln = $linenr + $#ctx + 1;
my $ctx_cnt = $realcnt - $#ctx - 1;
my $ctx = join("\n", @ctx);
- ##warn "realcnt<$realcnt> ctx_cnt<$ctx_cnt>\n";
+ my $ctx_ln = $linenr;
+ my $ctx_skip = $realcnt;
- # Skip over any removed lines in the context following statement.
- while (defined($lines[$ctx_ln - 1]) && $lines[$ctx_ln - 1] =~ /^-/) {
+ while ($ctx_skip > $ctx_cnt || ($ctx_skip == $ctx_cnt &&
+ defined $lines[$ctx_ln - 1] &&
+ $lines[$ctx_ln - 1] =~ /^-/)) {
+ ##print "SKIP<$ctx_skip> CNT<$ctx_cnt>\n";
+ $ctx_skip-- if (!defined $lines[$ctx_ln - 1] || $lines[$ctx_ln - 1] !~ /^-/);
$ctx_ln++;
}
- ##warn "pre<$pre_ctx>\nline<$line>\nctx<$ctx>\nnext<$lines[$ctx_ln - 1]>\n";
+
+ #print "realcnt<$realcnt> ctx_cnt<$ctx_cnt>\n";
+ #print "pre<$pre_ctx>\nline<$line>\nctx<$ctx>\nnext<$lines[$ctx_ln - 1]>\n";
if ($ctx !~ /{\s*/ && defined($lines[$ctx_ln -1]) && $lines[$ctx_ln - 1] =~ /^\+\s*{/) {
ERROR("that open brace { should be on the previous line\n" .
# Track the 'values' across context and added lines.
my $opline = $line; $opline =~ s/^./ /;
- my $curr_values = annotate_values($opline . "\n", $prev_values);
+ my ($curr_values, $curr_vars) =
+ annotate_values($opline . "\n", $prev_values);
$curr_values = $prev_values . $curr_values;
if ($dbg_values) {
my $outline = $opline; $outline =~ s/\t/ /g;
print "$linenr > .$outline\n";
print "$linenr > $curr_values\n";
+ print "$linenr > $curr_vars\n";
}
$prev_values = substr($curr_values, -1);
if ($line=~/^[^\+]/) {next;}
# TEST: allow direct testing of the type matcher.
- if ($tst_type && $line =~ /^.$Declare$/) {
- ERROR("TEST: is type $Declare\n" . $herecurr);
+ if ($dbg_type) {
+ if ($line =~ /^.\s*$Declare\s*$/) {
+ ERROR("TEST: is type\n" . $herecurr);
+ } elsif ($dbg_type > 1 && $line =~ /^.+($Declare)/) {
+ ERROR("TEST: is not type ($1 is)\n". $herecurr);
+ }
next;
}
ERROR("\"(foo $1 )\" should be \"(foo $1)\"\n" .
$herecurr);
- } elsif ($line =~ m{$NonptrType(\*+)(?:\s+(?:$Attribute|$Sparse))?\s+[A-Za-z\d_]+}) {
+ } elsif ($line =~ m{\b$NonptrType(\*+)(?:\s+(?:$Attribute|$Sparse))?\s+[A-Za-z\d_]+}) {
ERROR("\"foo$1 bar\" should be \"foo $1bar\"\n" .
$herecurr);
- } elsif ($line =~ m{$NonptrType\s+(\*+)(?!\s+(?:$Attribute|$Sparse))\s+[A-Za-z\d_]+}) {
+ } elsif ($line =~ m{\b$NonptrType\s+(\*+)(?!\s+(?:$Attribute|$Sparse))\s+[A-Za-z\d_]+}) {
ERROR("\"foo $1 bar\" should be \"foo $1bar\"\n" .
$herecurr);
}
ERROR("open brace '{' following $1 go on the same line\n" . $hereprev);
}
+# check for spacing round square brackets; allowed:
+# 1. with a type on the left -- int [] a;
+# 2. at the beginning of a line for slice initialisers -- [0..10] = 5,
+ while ($line =~ /(.*?\s)\[/g) {
+ my ($where, $prefix) = ($-[1], $1);
+ if ($prefix !~ /$Type\s+$/ &&
+ ($where != 0 || $prefix !~ /^.\s+$/)) {
+ ERROR("space prohibited before open square bracket '['\n" . $herecurr);
+ }
+ }
+
# check for spaces between functions and their parentheses.
while ($line =~ /($Ident)\s+\(/g) {
my $name = $1;
<<=|>>=|<=|>=|==|!=|
\+=|-=|\*=|\/=|%=|\^=|\|=|&=|
=>|->|<<|>>|<|>|=|!|~|
- &&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%
+ &&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%|
+ \?|:
}x;
my @elements = split(/($ops|;)/, $opline);
my $off = 0;
my $ptr = substr($blank, 0, $off) . "^";
my $hereptr = "$hereline$ptr\n";
- # Classify operators into binary, unary, or
- # definitions (* only) where they have more
- # than one mode.
+ # Pull out the value of this operator.
my $op_type = substr($curr_values, $off + 1, 1);
- my $op_left = substr($curr_values, $off, 1);
- my $is_unary;
- if ($op_type eq 'T') {
- $is_unary = 2;
- } elsif ($op_left eq 'V') {
- $is_unary = 0;
- } else {
- $is_unary = 1;
- }
- #if ($op eq '-' || $op eq '&' || $op eq '*') {
- # print "UNARY: <$op_left$op_type $is_unary $a:$op:$c> <$ca:$op:$cc> <$unary_ctx>\n";
- #}
+
+ # Get the full operator variant.
+ my $opv = $op . substr($curr_vars, $off, 1);
# Ignore operators passed as parameters.
if ($op_type ne 'V' &&
# // is a comment
} elsif ($op eq '//') {
- # -> should have no spaces
- } elsif ($op eq '->') {
+ # No spaces for:
+ # ->
+ # : when part of a bitfield
+ } elsif ($op eq '->' || $opv eq ':B') {
if ($ctx =~ /Wx.|.xW/) {
ERROR("spaces prohibited around that '$op' $at\n" . $hereptr);
}
}
# '*' as part of a type definition -- reported already.
- } elsif ($op eq '*' && $is_unary == 2) {
+ } elsif ($opv eq '*_') {
#warn "'*' is part of type\n";
# unary operators should have a space before and
# none after. May be left adjacent to another
# unary operator, or a cast
} elsif ($op eq '!' || $op eq '~' ||
- ($is_unary && ($op eq '*' || $op eq '-' || $op eq '&'))) {
+ $opv eq '*U' || $opv eq '-U' ||
+ $opv eq '&U') {
if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
ERROR("space required before that '$op' $at\n" . $hereptr);
}
- if ($op eq '*' && $cc =~/\s*const\b/) {
+ if ($op eq '*' && $cc =~/\s*const\b/) {
# A unary '*' may be const
} elsif ($ctx =~ /.xW/) {
$hereptr);
}
+ # A colon needs no spaces before when it is
+ # terminating a case value or a label.
+ } elsif ($opv eq ':C' || $opv eq ':L') {
+ if ($ctx =~ /Wx./) {
+ ERROR("space prohibited before that '$op' $at\n" . $hereptr);
+ }
+
# All the others need spaces both sides.
} elsif ($ctx !~ /[EWC]x[CWE]/) {
+ my $ok = 0;
+
# Ignore email addresses <foo@bar>
- if (!($op eq '<' && $cb =~ /$;\S+\@\S+>/) &&
- !($op eq '>' && $cb =~ /<\S+\@\S+$;/)) {
+ if (($op eq '<' &&
+ $cc =~ /^\S+\@\S+>/) ||
+ ($op eq '>' &&
+ $ca =~ /<\S+\@\S+$/))
+ {
+ $ok = 1;
+ }
+
+ # Ignore ?:
+ if (($opv eq ':O' && $ca =~ /\?$/) ||
+ ($op eq '?' && $cc =~ /^:/)) {
+ $ok = 1;
+ }
+
+ if ($ok == 0) {
ERROR("spaces required around that '$op' $at\n" . $hereptr);
}
}
my $value = $2;
# Flatten any parentheses and braces
+ $value =~ s/\)\(/\) \(/g;
while ($value =~ s/\([^\(\)]*\)/1/) {
}
ERROR("space required before the open parenthesis '('\n" . $herecurr);
}
-# Check for illegal assignment in if conditional.
- if ($line =~ /\bif\s*\(/) {
+# Check for illegal assignment in if conditional -- and check for trailing
+# statements after the conditional.
+ if ($line =~ /\b(?:if|while|for)\s*\(/ && $line !~ /^.\s*#/) {
my ($s, $c) = ($stat, $cond);
if ($c =~ /\bif\s*\(.*[^<>!=]=[^=].*/) {
substr($s, 0, length($c), '');
$s =~ s/\n.*//g;
$s =~ s/$;//g; # Remove any comments
- if (length($c) && $s !~ /^\s*({|;|)\s*\\*\s*$/ &&
- $c !~ /^.\s*\#\s*if/)
+ if (length($c) && $s !~ /^\s*{?\s*\\*\s*$/ &&
+ $c !~ /}\s*while\s*/)
{
ERROR("trailing statements should be on next line\n" . $herecurr);
}
}
+# Check relative indent for conditionals and blocks.
+ if ($line =~ /\b(?:(?:if|while|for)\s*\(|do\b)/ && $line !~ /^.\s*#/ && $line !~ /\}\s*while\s*/) {
+ my ($s, $c) = ($stat, $cond);
+
+ substr($s, 0, length($c), '');
+
+ # Make sure we remove the line prefixes as we have
+ # none on the first line, and are going to readd them
+ # where necessary.
+ $s =~ s/\n./\n/gs;
+
+ # We want to check the first line inside the block
+ # starting at the end of the conditional, so remove:
+ # 1) any blank line termination
+ # 2) any opening brace { on end of the line
+ # 3) any do (...) {
+ my $continuation = 0;
+ my $check = 0;
+ $s =~ s/^.*\bdo\b//;
+ $s =~ s/^\s*{//;
+ if ($s =~ s/^\s*\\//) {
+ $continuation = 1;
+ }
+ if ($s =~ s/^\s*\n//) {
+ $check = 1;
+ }
+
+ # Also ignore a loop construct at the end of a
+ # preprocessor statement.
+ if (($prevline =~ /^.\s*#\s*define\s/ ||
+ $prevline =~ /\\\s*$/) && $continuation == 0) {
+ $check = 0;
+ }
+
+ # Ignore the current line if its is a preprocessor
+ # line.
+ if ($s =~ /^\s*#\s*/) {
+ $check = 0;
+ }
+
+ my (undef, $sindent) = line_stats("+" . $s);
+
+ ##print "line<$line> prevline<$prevline> indent<$indent> sindent<$sindent> check<$check> continuation<$continuation> s<$s>\n";
+
+ if ($check && (($sindent % 8) != 0 ||
+ ($sindent <= $indent && $s ne ''))) {
+ WARN("suspect code indent for conditional statements\n" . $herecurr);
+ }
+ }
+
# Check for bitwise tests written as boolean
if ($line =~ /
(?:
# multi-statement macros should be enclosed in a do while loop, grab the
# first statement and ensure its the whole macro if its not enclosed
# in a known good container
- if ($line =~ /^.\s*\#\s*define\s*$Ident(\()?/) {
+ if ($realfile !~ m@/vmlinux.lds.h$@ &&
+ $line =~ /^.\s*\#\s*define\s*$Ident(\()?/) {
my $ln = $linenr;
my $cnt = $realcnt;
my ($off, $dstat, $dcond, $rest);
$lines[$ln - 1] =~ /^(?:-|..*\\$)/)
{
$ctx .= $rawlines[$ln - 1] . "\n";
+ $cnt-- if ($lines[$ln - 1] !~ /^-/);
$ln++;
- $cnt--;
}
$ctx .= $rawlines[$ln - 1];
($dstat, $dcond, $ln, $cnt, $off) =
ctx_statement_block($linenr, $ln - $linenr + 1, 0);
#print "dstat<$dstat> dcond<$dcond> cnt<$cnt> off<$off>\n";
- #print "LINE<$lines[$ln]> len<" . length($lines[$ln]) . "\n";
+ #print "LINE<$lines[$ln-1]> len<" . length($lines[$ln-1]) . "\n";
# Extract the remainder of the define (if any) and
# rip off surrounding spaces, and trailing \'s.
$rest = '';
- if (defined $lines[$ln - 1] &&
- $off > length($lines[$ln - 1]))
- {
- $ln++;
- $cnt--;
- $off = 0;
- }
- while ($cnt > 0) {
- $rest .= substr($lines[$ln - 1], $off) . "\n";
+ while ($off != 0 || ($cnt > 0 && $rest =~ /(?:^|\\)\s*$/)) {
+ #print "ADDING $off <" . substr($lines[$ln - 1], $off) . ">\n";
+ if ($off != 0 || $lines[$ln - 1] !~ /^-/) {
+ $rest .= substr($lines[$ln - 1], $off) . "\n";
+ $cnt--;
+ }
$ln++;
- $cnt--;
$off = 0;
}
$rest =~ s/\\\n.//g;
} else {
$dstat =~ s/^.\s*\#\s*define\s+$Ident\s*//;
}
+ $dstat =~ s/$;//g;
$dstat =~ s/\\\n.//g;
$dstat =~ s/^\s*//s;
$dstat =~ s/\s*$//s;
DEFINE_PER_CPU|
__typeof__\(
}x;
+ #print "REST<$rest>\n";
if ($rest ne '') {
if ($rest !~ /while\s*\(/ &&
$dstat !~ /$exceptions/)
if ($prevline =~ /\bif\s*\(([^\)]*)\)/) {
my $expr = $1;
if ($line =~ /\bkfree\(\Q$expr\E\);/) {
- WARN("kfree(NULL) is safe this check is probabally not required\n" . $hereprev);
+ WARN("kfree(NULL) is safe this check is probably not required\n" . $hereprev);
+ }
+ }
+# check for needless usb_free_urb() checks
+ if ($prevline =~ /\bif\s*\(([^\)]*)\)/) {
+ my $expr = $1;
+ if ($line =~ /\busb_free_urb\(\Q$expr\E\);/) {
+ WARN("usb_free_urb(NULL) is safe this check is probably not required\n" . $hereprev);
}
}
if ($line =~ /\bsimple_(strto.*?)\s*\(/) {
WARN("consider using strict_$1 in preference to simple_$1\n" . $herecurr);
}
+# check for __initcall(), use device_initcall() explicitly please
+ if ($line =~ /^.\s*__initcall\s*\(/) {
+ WARN("please use device_initcall() instead of __initcall()\n" . $herecurr);
+ }
# use of NR_CPUS is usually wrong
# ignore definitions of NR_CPUS and usage to define arrays as likely right
genksyms_usage();
return 1;
}
- if ((strcmp(arch, "v850") == 0) || (strcmp(arch, "h8300") == 0)
- || (strcmp(arch, "blackfin") == 0))
+ if ((strcmp(arch, "h8300") == 0) || (strcmp(arch, "blackfin") == 0))
mod_prefix = "_";
{
extern int yydebug;
return 1;
}
-/* Ignore any prefix, eg. v850 prepends _ */
+/* Ignore any prefix, eg. some architectures prepend _ */
static inline int sym_is(const char *symbol, const char *name)
{
const char *match;
else
exit(1);
- if ((strcmp(argv[1], "v850") == 0) || (strcmp(argv[1], "h8300") == 0)
+ if ((strcmp(argv[1], "h8300") == 0)
|| (strcmp(argv[1], "blackfin") == 0))
printf("#define MODULE_SYMBOL_PREFIX \"_\"\n");
else
If you are unsure how to answer this question, answer N.
config SECURITY_FILE_CAPABILITIES
- bool "File POSIX Capabilities (EXPERIMENTAL)"
- depends on EXPERIMENTAL
+ bool "File POSIX Capabilities"
default n
help
This enables filesystem capabilities, allowing you to give
static inline void bprm_clear_caps(struct linux_binprm *bprm)
{
- cap_clear(bprm->cap_inheritable);
- cap_clear(bprm->cap_permitted);
+ cap_clear(bprm->cap_post_exec_permitted);
bprm->cap_effective = false;
}
{
__u32 magic_etc;
unsigned tocopy, i;
+ int ret;
if (size < sizeof(magic_etc))
return -EINVAL;
bprm->cap_effective = false;
}
- for (i = 0; i < tocopy; ++i) {
- bprm->cap_permitted.cap[i] =
- le32_to_cpu(caps->data[i].permitted);
- bprm->cap_inheritable.cap[i] =
- le32_to_cpu(caps->data[i].inheritable);
- }
- while (i < VFS_CAP_U32) {
- bprm->cap_permitted.cap[i] = 0;
- bprm->cap_inheritable.cap[i] = 0;
- i++;
+ ret = 0;
+
+ CAP_FOR_EACH_U32(i) {
+ __u32 value_cpu;
+
+ if (i >= tocopy) {
+ /*
+ * Legacy capability sets have no upper bits
+ */
+ bprm->cap_post_exec_permitted.cap[i] = 0;
+ continue;
+ }
+ /*
+ * pP' = (X & fP) | (pI & fI)
+ */
+ value_cpu = le32_to_cpu(caps->data[i].permitted);
+ bprm->cap_post_exec_permitted.cap[i] =
+ (current->cap_bset.cap[i] & value_cpu) |
+ (current->cap_inheritable.cap[i] &
+ le32_to_cpu(caps->data[i].inheritable));
+ if (value_cpu & ~bprm->cap_post_exec_permitted.cap[i]) {
+ /*
+ * insufficient to execute correctly
+ */
+ ret = -EPERM;
+ }
}
- return 0;
+ /*
+ * For legacy apps, with no internal support for recognizing they
+ * do not have enough capabilities, we return an error if they are
+ * missing some "forced" (aka file-permitted) capabilities.
+ */
+ return bprm->cap_effective ? ret : 0;
}
/* Locate any VFS capabilities: */
goto out;
rc = cap_from_disk(&vcaps, bprm, rc);
- if (rc)
+ if (rc == -EINVAL)
printk(KERN_NOTICE "%s: cap_from_disk returned %d for %s\n",
- __func__, rc, bprm->filename);
+ __func__, rc, bprm->filename);
out:
dput(dentry);
int ret;
ret = get_file_caps(bprm);
- if (ret)
- printk(KERN_NOTICE "%s: get_file_caps returned %d for %s\n",
- __func__, ret, bprm->filename);
-
- /* To support inheritance of root-permissions and suid-root
- * executables under compatibility mode, we raise all three
- * capability sets for the file.
- *
- * If only the real uid is 0, we only raise the inheritable
- * and permitted sets of the executable file.
- */
- if (!issecure (SECURE_NOROOT)) {
+ if (!issecure(SECURE_NOROOT)) {
+ /*
+ * To support inheritance of root-permissions and suid-root
+ * executables under compatibility mode, we override the
+ * capability sets for the file.
+ *
+ * If only the real uid is 0, we do not set the effective
+ * bit.
+ */
if (bprm->e_uid == 0 || current->uid == 0) {
- cap_set_full (bprm->cap_inheritable);
- cap_set_full (bprm->cap_permitted);
+ /* pP' = (cap_bset & ~0) | (pI & ~0) */
+ bprm->cap_post_exec_permitted = cap_combine(
+ current->cap_bset, current->cap_inheritable
+ );
+ bprm->cap_effective = (bprm->e_uid == 0);
+ ret = 0;
}
- if (bprm->e_uid == 0)
- bprm->cap_effective = true;
}
return ret;
void cap_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
{
- /* Derived from fs/exec.c:compute_creds. */
- kernel_cap_t new_permitted, working;
-
- new_permitted = cap_intersect(bprm->cap_permitted,
- current->cap_bset);
- working = cap_intersect(bprm->cap_inheritable,
- current->cap_inheritable);
- new_permitted = cap_combine(new_permitted, working);
-
if (bprm->e_uid != current->uid || bprm->e_gid != current->gid ||
- !cap_issubset (new_permitted, current->cap_permitted)) {
+ !cap_issubset(bprm->cap_post_exec_permitted,
+ current->cap_permitted)) {
set_dumpable(current->mm, suid_dumpable);
current->pdeath_signal = 0;
bprm->e_gid = current->gid;
}
if (cap_limit_ptraced_target()) {
- new_permitted =
- cap_intersect(new_permitted,
- current->cap_permitted);
+ bprm->cap_post_exec_permitted = cap_intersect(
+ bprm->cap_post_exec_permitted,
+ current->cap_permitted);
}
}
}
* in the init_task struct. Thus we skip the usual
* capability rules */
if (!is_global_init(current)) {
- current->cap_permitted = new_permitted;
+ current->cap_permitted = bprm->cap_post_exec_permitted;
if (bprm->cap_effective)
- current->cap_effective = new_permitted;
+ current->cap_effective = bprm->cap_post_exec_permitted;
else
cap_clear(current->cap_effective);
}
if (current->uid != 0) {
if (bprm->cap_effective)
return 1;
- if (!cap_isclear(bprm->cap_permitted))
- return 1;
- if (!cap_isclear(bprm->cap_inheritable))
+ if (!cap_isclear(bprm->cap_post_exec_permitted))
return 1;
}
#include <linux/init.h>
#include <linux/time.h>
+#include <linux/mm.h>
#include <linux/smp_lock.h>
#include <linux/string.h>
#include <sound/core.h>
tristate "Au1550/Au1200 AC97 Sound"
depends on SOC_AU1550 || SOC_AU1200
-config SOUND_TRIDENT
- tristate "Trident 4DWave DX/NX, SiS 7018 or ALi 5451 PCI Audio Core"
- depends on PCI
- ---help---
- Say Y or M if you have a PCI sound card utilizing the Trident
- 4DWave-DX/NX chipset or your mother board chipset has SiS 7018
- or ALi 5451 built-in. The SiS 7018 PCI Audio Core is embedded
- in SiS960 Super South Bridge and SiS540/630 Single Chipset.
- The ALi 5451 PCI Audio Core is embedded in ALi M1535, M1535D,
- M1535+ or M1535D+ South Bridge.
-
- Use lspci -n to find out if your sound card or chipset uses
- Trident 4DWave or SiS 7018. PCI ID 1023:2000 or 1023:2001 stands
- for Trident 4Dwave. PCI ID 1039:7018 stands for SiS7018. PCI ID
- 10B9:5451 stands for ALi5451.
-
- This driver supports S/PDIF in/out (record/playback) for ALi 5451
- embedded in ALi M1535+ and M1535D+. Note that they aren't all
- enabled by default; you can enable them by saying Y to "/proc file
- system support" and "Sysctl support", and after the /proc file
- system has been mounted, executing the command
-
- command what is enabled
-
- echo 0>/proc/ALi5451 pcm out is also set to S/PDIF out. (Default).
-
- echo 1>/proc/ALi5451 use S/PDIF out to output pcm data.
-
- echo 2>/proc/ALi5451 use S/PDIF out to output non-pcm data.
- (AC3...).
-
- echo 3>/proc/ALi5451 record from Ac97 in(MIC, Line in...).
- (Default).
-
- echo 4>/proc/ALi5451 no matter Ac97 settings, record from S/PDIF
- in.
-
-
- This driver differs slightly from OSS/Free, so PLEASE READ the
- comments at the top of <file:sound/oss/trident.c>.
-
config SOUND_MSNDCLAS
tristate "Support for Turtle Beach MultiSound Classic, Tahiti, Monterey"
depends on (m || !STANDALONE) && ISA
obj-$(CONFIG_SOUND_MSNDPIN) += msnd.o msnd_pinnacle.o
obj-$(CONFIG_SOUND_VWSND) += vwsnd.o
obj-$(CONFIG_SOUND_AU1550_AC97) += au1550_ac97.o ac97_codec.o
-obj-$(CONFIG_SOUND_TRIDENT) += trident.o ac97_codec.o
obj-$(CONFIG_SOUND_BCM_CS4297A) += swarm_cs4297a.o
-obj-$(CONFIG_SOUND_WM97XX) += ac97_plugin_wm97xx.o
-
obj-$(CONFIG_DMASOUND) += dmasound/
# Declare multi-part drivers.
+++ /dev/null
-/*
- * OSS driver for Linux 2.[46].x for
- *
- * Trident 4D-Wave
- * SiS 7018
- * ALi 5451
- * Tvia/IGST CyberPro 5050
- *
- * Driver: Alan Cox <alan@redhat.com>
- *
- * Built from:
- * Low level code: <audio@tridentmicro.com> from ALSA
- * Framework: Thomas Sailer <sailer@ife.ee.ethz.ch>
- * Extended by: Zach Brown <zab@redhat.com>
- *
- * Hacked up by:
- * Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
- * Ollie Lho <ollie@sis.com.tw> SiS 7018 Audio Core Support
- * Ching-Ling Lee <cling-li@ali.com.tw> ALi 5451 Audio Core Support
- * Matt Wu <mattwu@acersoftech.com.cn> ALi 5451 Audio Core Support
- * Peter Wächtler <pwaechtler@loewe-komp.de> CyberPro5050 support
- * Muli Ben-Yehuda <mulix@mulix.org>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * History
- * v0.14.10j
- * January 3 2004 Eugene Teo <eugeneteo@eugeneteo.net>
- * minor cleanup to use pr_debug instead of TRDBG since it is already
- * defined in linux/kernel.h.
- * v0.14.10i
- * December 29 2003 Muli Ben-Yehuda <mulix@mulix.org>
- * major cleanup for 2.6, fix a few error patch buglets
- * with returning without properly cleaning up first,
- * get rid of lock_kernel().
- * v0.14.10h
- * Sept 10 2002 Pascal Schmidt <der.eremit@email.de>
- * added support for ALi 5451 joystick port
- * v0.14.10g
- * Sept 05 2002 Alan Cox <alan@redhat.com>
- * adapt to new pci joystick attachment interface
- * v0.14.10f
- * July 24 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
- * patch from Eric Lemar (via Ian Soboroff): in suspend and resume,
- * fix wrong cast from pci_dev* to struct trident_card*.
- * v0.14.10e
- * July 19 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
- * rewrite the DMA buffer allocation/deallcoation functions, to make it
- * modular and fix a bug where we would call free_pages on memory
- * obtained with pci_alloc_consistent. Also remove unnecessary #ifdef
- * CONFIG_PROC_FS and various other cleanups.
- * v0.14.10d
- * July 19 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
- * made several printk(KERN_NOTICE...) into TRDBG(...), to avoid spamming
- * my syslog with hundreds of messages.
- * v0.14.10c
- * July 16 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
- * Cleaned up Lei Hu's 0.4.10 driver to conform to Documentation/CodingStyle
- * and the coding style used in the rest of the file.
- * v0.14.10b
- * June 23 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
- * add a missing unlock_set_fmt, remove a superflous lock/unlock pair
- * with nothing in between.
- * v0.14.10a
- * June 21 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
- * use a debug macro instead of #ifdef CONFIG_DEBUG, trim to 80 columns
- * per line, use 'do {} while (0)' in statement macros.
- * v0.14.10
- * June 6 2002 Lei Hu <Lei_hu@ali.com.tw>
- * rewrite the part to read/write registers of audio codec for Ali5451
- * v0.14.9e
- * January 2 2002 Vojtech Pavlik <vojtech@ucw.cz> added gameport
- * support to avoid resource conflict with pcigame.c
- * v0.14.9d
- * October 8 2001 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
- * use set_current_state, properly release resources on failure in
- * trident_probe, get rid of check_region
- * v0.14.9c
- * August 10 2001 Peter Wächtler <pwaechtler@loewe-komp.de>
- * added support for Tvia (formerly Integraphics/IGST) CyberPro5050
- * this chip is often found in settop boxes (combined video+audio)
- * v0.14.9b
- * Switch to static inline not extern inline (gcc 3)
- * v0.14.9a
- * Aug 6 2001 Alan Cox
- * 0.14.9 crashed on rmmod due to a timer/bh left running. Simplified
- * the existing logic (the BH doesn't help as ac97 is lock_irqsave)
- * and used del_timer_sync to clean up
- * Fixed a problem where the ALi change broke my generic card
- * v0.14.9
- * Jul 10 2001 Matt Wu
- * Add H/W Volume Control
- * v0.14.8a
- * July 7 2001 Alan Cox
- * Moved Matt Wu's ac97 register cache into the card structure
- * v0.14.8
- * Apr 30 2001 Matt Wu
- * Set EBUF1 and EBUF2 to still mode
- * Add dc97/ac97 reset function
- * Fix power management: ali_restore_regs
- * unreleased
- * Mar 09 2001 Matt Wu
- * Add cache for ac97 access
- * v0.14.7
- * Feb 06 2001 Matt Wu
- * Fix ac97 initialization
- * Fix bug: an extra tail will be played when playing
- * Jan 05 2001 Matt Wu
- * Implement multi-channels and S/PDIF in support for ALi 1535+
- * v0.14.6
- * Nov 1 2000 Ching-Ling Lee
- * Fix the bug of memory leak when switching 5.1-channels to 2 channels.
- * Add lock protection into dynamic changing format of data.
- * Oct 18 2000 Ching-Ling Lee
- * 5.1-channels support for ALi
- * June 28 2000 Ching-Ling Lee
- * S/PDIF out/in(playback/record) support for ALi 1535+, using /proc to be selected by user
- * Simple Power Management support for ALi
- * v0.14.5 May 23 2000 Ollie Lho
- * Misc bug fix from the Net
- * v0.14.4 May 20 2000 Aaron Holtzman
- * Fix kfree'd memory access in release
- * Fix race in open while looking for a free virtual channel slot
- * remove open_wait wq (which appears to be unused)
- * v0.14.3 May 10 2000 Ollie Lho
- * fixed a small bug in trident_update_ptr, xmms 1.0.1 no longer uses 100% CPU
- * v0.14.2 Mar 29 2000 Ching-Ling Lee
- * Add clear to silence advance in trident_update_ptr
- * fix invalid data of the end of the sound
- * v0.14.1 Mar 24 2000 Ching-Ling Lee
- * ALi 5451 support added, playback and recording O.K.
- * ALi 5451 originally developed and structured based on sonicvibes, and
- * suggested to merge into this file by Alan Cox.
- * v0.14 Mar 15 2000 Ollie Lho
- * 5.1 channel output support with channel binding. What's the Matrix ?
- * v0.13.1 Mar 10 2000 Ollie Lho
- * few minor bugs on dual codec support, needs more testing
- * v0.13 Mar 03 2000 Ollie Lho
- * new pci_* for 2.4 kernel, back ported to 2.2
- * v0.12 Feb 23 2000 Ollie Lho
- * Preliminary Recording support
- * v0.11.2 Feb 19 2000 Ollie Lho
- * removed incomplete full-dulplex support
- * v0.11.1 Jan 28 2000 Ollie Lho
- * small bug in setting sample rate for 4d-nx (reported by Aaron)
- * v0.11 Jan 27 2000 Ollie Lho
- * DMA bug, scheduler latency, second try
- * v0.10 Jan 24 2000 Ollie Lho
- * DMA bug fixed, found kernel scheduling problem
- * v0.09 Jan 20 2000 Ollie Lho
- * Clean up of channel register access routine (prepare for channel binding)
- * v0.08 Jan 14 2000 Ollie Lho
- * Isolation of AC97 codec code
- * v0.07 Jan 13 2000 Ollie Lho
- * Get rid of ugly old low level access routines (e.g. CHRegs.lp****)
- * v0.06 Jan 11 2000 Ollie Lho
- * Preliminary support for dual (more ?) AC97 codecs
- * v0.05 Jan 08 2000 Luca Montecchiani <m.luca@iname.com>
- * adapt to 2.3.x new __setup/__init call
- * v0.04 Dec 31 1999 Ollie Lho
- * Multiple Open, using Middle Loop Interrupt to smooth playback
- * v0.03 Dec 24 1999 Ollie Lho
- * mem leak in prog_dmabuf and dealloc_dmabuf removed
- * v0.02 Dec 15 1999 Ollie Lho
- * SiS 7018 support added, playback O.K.
- * v0.01 Alan Cox et. al.
- * Initial Release in kernel 2.3.30, does not work
- *
- * ToDo
- * Clean up of low level channel register access code. (done)
- * Fix the bug on dma buffer management in update_ptr, read/write, drain_dac (done)
- * Dual AC97 codecs support (done)
- * Recording support (done)
- * Mmap support
- * "Channel Binding" ioctl extension (done)
- * new pci device driver interface for 2.4 kernel (done)
- *
- * Lock order (high->low)
- * lock - hardware lock
- * open_mutex - guard opens
- * sem - guard dmabuf, write re-entry etc
- */
-
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/ctype.h>
-#include <linux/ioport.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include <linux/sound.h>
-#include <linux/slab.h>
-#include <linux/soundcard.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/poll.h>
-#include <linux/spinlock.h>
-#include <linux/ac97_codec.h>
-#include <linux/bitops.h>
-#include <linux/proc_fs.h>
-#include <linux/interrupt.h>
-#include <linux/pm.h>
-#include <linux/gameport.h>
-#include <linux/kernel.h>
-#include <linux/mutex.h>
-#include <linux/mm.h>
-
-#include <asm/uaccess.h>
-#include <asm/io.h>
-#include <asm/dma.h>
-
-#if defined(CONFIG_ALPHA_NAUTILUS) || defined(CONFIG_ALPHA_GENERIC)
-#include <asm/hwrpb.h>
-#endif
-
-#include "trident.h"
-
-#define DRIVER_VERSION "0.14.10j-2.6"
-
-#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
-#define SUPPORT_JOYSTICK 1
-#endif
-
-/* magic numbers to protect our data structures */
-#define TRIDENT_CARD_MAGIC 0x5072696E /* "Prin" */
-#define TRIDENT_STATE_MAGIC 0x63657373 /* "cess" */
-
-#define TRIDENT_DMA_MASK 0x3fffffff /* DMA buffer mask for pci_alloc_consist */
-#define ALI_DMA_MASK 0x7fffffff /* ALI Tridents have 31-bit DMA. Wow. */
-
-#define NR_HW_CH 32
-
-/* maximum number of AC97 codecs connected, AC97 2.0 defined 4, but 7018 and 4D-NX only
- have 2 SDATA_IN lines (currently) */
-#define NR_AC97 2
-
-/* minor number of /dev/swmodem (temporary, experimental) */
-#define SND_DEV_SWMODEM 7
-
-static const unsigned ali_multi_channels_5_1[] = {
- /*ALI_SURR_LEFT_CHANNEL, ALI_SURR_RIGHT_CHANNEL, */
- ALI_CENTER_CHANNEL,
- ALI_LEF_CHANNEL,
- ALI_SURR_LEFT_CHANNEL,
- ALI_SURR_RIGHT_CHANNEL
-};
-
-static const unsigned sample_size[] = { 1, 2, 2, 4 };
-static const unsigned sample_shift[] = { 0, 1, 1, 2 };
-
-static const char invalid_magic[] = KERN_CRIT "trident: invalid magic value in %s\n";
-
-enum {
- TRIDENT_4D_DX = 0,
- TRIDENT_4D_NX,
- SIS_7018,
- ALI_5451,
- CYBER5050
-};
-
-static char *card_names[] = {
- "Trident 4DWave DX",
- "Trident 4DWave NX",
- "SiS 7018 PCI Audio",
- "ALi Audio Accelerator",
- "Tvia/IGST CyberPro 5050"
-};
-
-static struct pci_device_id trident_pci_tbl[] = {
- {PCI_DEVICE(PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_TRIDENT_4DWAVE_DX),
- PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, TRIDENT_4D_DX},
- {PCI_DEVICE(PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_TRIDENT_4DWAVE_NX),
- 0, 0, TRIDENT_4D_NX},
- {PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_7018), 0, 0, SIS_7018},
- {PCI_DEVICE(PCI_VENDOR_ID_ALI, PCI_DEVICE_ID_ALI_5451), 0, 0, ALI_5451},
- {PCI_DEVICE(PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_5050),
- 0, 0, CYBER5050},
- {0,}
-};
-
-MODULE_DEVICE_TABLE(pci, trident_pci_tbl);
-
-/* "software" or virtual channel, an instance of opened /dev/dsp */
-struct trident_state {
- unsigned int magic;
- struct trident_card *card; /* Card info */
-
- /* file mode */
- mode_t open_mode;
-
- /* virtual channel number */
- int virt;
-
- struct dmabuf {
- /* wave sample stuff */
- unsigned int rate;
- unsigned char fmt, enable;
-
- /* hardware channel */
- struct trident_channel *channel;
-
- /* OSS buffer management stuff */
- void *rawbuf;
- dma_addr_t dma_handle;
- unsigned buforder;
- unsigned numfrag;
- unsigned fragshift;
-
- /* our buffer acts like a circular ring */
- unsigned hwptr; /* where dma last started, updated by update_ptr */
- unsigned swptr; /* where driver last clear/filled, updated by read/write */
- int count; /* bytes to be comsumed or been generated by dma machine */
- unsigned total_bytes; /* total bytes dmaed by hardware */
-
- unsigned error; /* number of over/underruns */
- /* put process on wait queue when no more space in buffer */
- wait_queue_head_t wait;
-
- /* redundant, but makes calculations easier */
- unsigned fragsize;
- unsigned dmasize;
- unsigned fragsamples;
-
- /* OSS stuff */
- unsigned mapped:1;
- unsigned ready:1;
- unsigned endcleared:1;
- unsigned update_flag;
- unsigned ossfragshift;
- int ossmaxfrags;
- unsigned subdivision;
-
- } dmabuf;
-
- /* 5.1 channels */
- struct trident_state *other_states[4];
- int multi_channels_adjust_count;
- unsigned chans_num;
- unsigned long fmt_flag;
- /* Guard against mmap/write/read races */
- struct mutex sem;
-
-};
-
-/* hardware channels */
-struct trident_channel {
- int num; /* channel number */
- u32 lba; /* Loop Begine Address, where dma buffer starts */
- u32 eso; /* End Sample Offset, wehre dma buffer ends */
- /* (in the unit of samples) */
- u32 delta; /* delta value, sample rate / 48k for playback, */
- /* 48k/sample rate for recording */
- u16 attribute; /* control where PCM data go and come */
- u16 fm_vol;
- u32 control; /* signed/unsigned, 8/16 bits, mono/stereo */
-};
-
-struct trident_pcm_bank_address {
- u32 start;
- u32 stop;
- u32 aint;
- u32 aint_en;
-};
-
-static struct trident_pcm_bank_address bank_a_addrs = {
- T4D_START_A,
- T4D_STOP_A,
- T4D_AINT_A,
- T4D_AINTEN_A
-};
-
-static struct trident_pcm_bank_address bank_b_addrs = {
- T4D_START_B,
- T4D_STOP_B,
- T4D_AINT_B,
- T4D_AINTEN_B
-};
-
-struct trident_pcm_bank {
- /* register addresses to control bank operations */
- struct trident_pcm_bank_address *addresses;
- /* each bank has 32 channels */
- u32 bitmap; /* channel allocation bitmap */
- struct trident_channel channels[32];
-};
-
-struct trident_card {
- unsigned int magic;
-
- /* We keep trident cards in a linked list */
- struct trident_card *next;
-
- /* single open lock mechanism, only used for recording */
- struct mutex open_mutex;
-
- /* The trident has a certain amount of cross channel interaction
- so we use a single per card lock */
- spinlock_t lock;
-
- /* PCI device stuff */
- struct pci_dev *pci_dev;
- u16 pci_id;
- u8 revision;
-
- /* soundcore stuff */
- int dev_audio;
-
- /* structures for abstraction of hardware facilities, codecs, */
- /* banks and channels */
- struct ac97_codec *ac97_codec[NR_AC97];
- struct trident_pcm_bank banks[NR_BANKS];
- struct trident_state *states[NR_HW_CH];
-
- /* hardware resources */
- unsigned long iobase;
- u32 irq;
-
- /* Function support */
- struct trident_channel *(*alloc_pcm_channel) (struct trident_card *);
- struct trident_channel *(*alloc_rec_pcm_channel) (struct trident_card *);
- void (*free_pcm_channel) (struct trident_card *, unsigned int chan);
- void (*address_interrupt) (struct trident_card *);
-
- /* Added by Matt Wu 01-05-2001 for spdif in */
- int multi_channel_use_count;
- int rec_channel_use_count;
- u16 mixer_regs[64][NR_AC97]; /* Made card local by Alan */
- int mixer_regs_ready;
-
- /* Added for hardware volume control */
- int hwvolctl;
- struct timer_list timer;
-
- /* Game port support */
- struct gameport *gameport;
-};
-
-enum dmabuf_mode {
- DM_PLAYBACK = 0,
- DM_RECORD
-};
-
-/* table to map from CHANNELMASK to channel attribute for SiS 7018 */
-static u16 mask2attr[] = {
- PCM_LR, PCM_LR, SURR_LR, CENTER_LFE,
- HSET, MIC, MODEM_LINE1, MODEM_LINE2,
- I2S_LR, SPDIF_LR
-};
-
-/* table to map from channel attribute to CHANNELMASK for SiS 7018 */
-static int attr2mask[] = {
- DSP_BIND_MODEM1, DSP_BIND_MODEM2, DSP_BIND_FRONT, DSP_BIND_HANDSET,
- DSP_BIND_I2S, DSP_BIND_CENTER_LFE, DSP_BIND_SURR, DSP_BIND_SPDIF
-};
-
-/* Added by Matt Wu 01-05-2001 for spdif in */
-static int ali_close_multi_channels(void);
-static void ali_delay(struct trident_card *card, int interval);
-static void ali_detect_spdif_rate(struct trident_card *card);
-
-static void ali_ac97_write(struct ac97_codec *codec, u8 reg, u16 val);
-static u16 ali_ac97_read(struct ac97_codec *codec, u8 reg);
-
-static struct trident_card *devs;
-
-static void trident_ac97_set(struct ac97_codec *codec, u8 reg, u16 val);
-static u16 trident_ac97_get(struct ac97_codec *codec, u8 reg);
-
-static int trident_open_mixdev(struct inode *inode, struct file *file);
-static int trident_ioctl_mixdev(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg);
-
-static void ali_ac97_set(struct trident_card *card, int secondary, u8 reg, u16 val);
-static u16 ali_ac97_get(struct trident_card *card, int secondary, u8 reg);
-static void ali_set_spdif_out_rate(struct trident_card *card, unsigned int rate);
-static void ali_enable_special_channel(struct trident_state *stat);
-static struct trident_channel *ali_alloc_rec_pcm_channel(struct trident_card *card);
-static struct trident_channel *ali_alloc_pcm_channel(struct trident_card *card);
-static void ali_free_pcm_channel(struct trident_card *card, unsigned int channel);
-static int ali_setup_multi_channels(struct trident_card *card, int chan_nums);
-static unsigned int ali_get_spdif_in_rate(struct trident_card *card);
-static void ali_setup_spdif_in(struct trident_card *card);
-static void ali_disable_spdif_in(struct trident_card *card);
-static void ali_disable_special_channel(struct trident_card *card, int ch);
-static void ali_setup_spdif_out(struct trident_card *card, int flag);
-static int ali_write_5_1(struct trident_state *state,
- const char __user *buffer,
- int cnt_for_multi_channel, unsigned int *copy_count,
- unsigned int *state_cnt);
-static int ali_allocate_other_states_resources(struct trident_state *state,
- int chan_nums);
-static void ali_free_other_states_resources(struct trident_state *state);
-
-#define seek_offset(dma_ptr, buffer, cnt, offset, copy_count) do { \
- (dma_ptr) += (offset); \
- (buffer) += (offset); \
- (cnt) -= (offset); \
- (copy_count) += (offset); \
-} while (0)
-
-static inline int lock_set_fmt(struct trident_state* state)
-{
- if (test_and_set_bit(0, &state->fmt_flag))
- return -EFAULT;
-
- return 0;
-}
-
-static inline void unlock_set_fmt(struct trident_state* state)
-{
- clear_bit(0, &state->fmt_flag);
-}
-
-static int
-trident_enable_loop_interrupts(struct trident_card *card)
-{
- u32 global_control;
-
- global_control = inl(TRID_REG(card, T4D_LFO_GC_CIR));
-
- switch (card->pci_id) {
- case PCI_DEVICE_ID_SI_7018:
- global_control |= (ENDLP_IE | MIDLP_IE | BANK_B_EN);
- break;
- case PCI_DEVICE_ID_ALI_5451:
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
- case PCI_DEVICE_ID_INTERG_5050:
- global_control |= (ENDLP_IE | MIDLP_IE);
- break;
- default:
- return 0;
- }
-
- outl(global_control, TRID_REG(card, T4D_LFO_GC_CIR));
-
- pr_debug("trident: Enable Loop Interrupts, globctl = 0x%08X\n",
- inl(TRID_REG(card, T4D_LFO_GC_CIR)));
-
- return 1;
-}
-
-static int
-trident_disable_loop_interrupts(struct trident_card *card)
-{
- u32 global_control;
-
- global_control = inl(TRID_REG(card, T4D_LFO_GC_CIR));
- global_control &= ~(ENDLP_IE | MIDLP_IE);
- outl(global_control, TRID_REG(card, T4D_LFO_GC_CIR));
-
- pr_debug("trident: Disabled Loop Interrupts, globctl = 0x%08X\n",
- global_control);
-
- return 1;
-}
-
-static void
-trident_enable_voice_irq(struct trident_card *card, unsigned int channel)
-{
- unsigned int mask = 1 << (channel & 0x1f);
- struct trident_pcm_bank *bank = &card->banks[channel >> 5];
- u32 reg, addr = bank->addresses->aint_en;
-
- reg = inl(TRID_REG(card, addr));
- reg |= mask;
- outl(reg, TRID_REG(card, addr));
-
-#ifdef DEBUG
- reg = inl(TRID_REG(card, addr));
- pr_debug("trident: enabled IRQ on channel %d, %s = 0x%08x(addr:%X)\n",
- channel, addr == T4D_AINTEN_B ? "AINTEN_B" : "AINTEN_A",
- reg, addr);
-#endif /* DEBUG */
-}
-
-static void
-trident_disable_voice_irq(struct trident_card *card, unsigned int channel)
-{
- unsigned int mask = 1 << (channel & 0x1f);
- struct trident_pcm_bank *bank = &card->banks[channel >> 5];
- u32 reg, addr = bank->addresses->aint_en;
-
- reg = inl(TRID_REG(card, addr));
- reg &= ~mask;
- outl(reg, TRID_REG(card, addr));
-
- /* Ack the channel in case the interrupt was set before we disable it. */
- outl(mask, TRID_REG(card, bank->addresses->aint));
-
-#ifdef DEBUG
- reg = inl(TRID_REG(card, addr));
- pr_debug("trident: disabled IRQ on channel %d, %s = 0x%08x(addr:%X)\n",
- channel, addr == T4D_AINTEN_B ? "AINTEN_B" : "AINTEN_A",
- reg, addr);
-#endif /* DEBUG */
-}
-
-static void
-trident_start_voice(struct trident_card *card, unsigned int channel)
-{
- unsigned int mask = 1 << (channel & 0x1f);
- struct trident_pcm_bank *bank = &card->banks[channel >> 5];
- u32 addr = bank->addresses->start;
-
-#ifdef DEBUG
- u32 reg;
-#endif /* DEBUG */
-
- outl(mask, TRID_REG(card, addr));
-
-#ifdef DEBUG
- reg = inl(TRID_REG(card, addr));
- pr_debug("trident: start voice on channel %d, %s = 0x%08x(addr:%X)\n",
- channel, addr == T4D_START_B ? "START_B" : "START_A",
- reg, addr);
-#endif /* DEBUG */
-}
-
-static void
-trident_stop_voice(struct trident_card *card, unsigned int channel)
-{
- unsigned int mask = 1 << (channel & 0x1f);
- struct trident_pcm_bank *bank = &card->banks[channel >> 5];
- u32 addr = bank->addresses->stop;
-
-#ifdef DEBUG
- u32 reg;
-#endif /* DEBUG */
-
- outl(mask, TRID_REG(card, addr));
-
-#ifdef DEBUG
- reg = inl(TRID_REG(card, addr));
- pr_debug("trident: stop voice on channel %d, %s = 0x%08x(addr:%X)\n",
- channel, addr == T4D_STOP_B ? "STOP_B" : "STOP_A",
- reg, addr);
-#endif /* DEBUG */
-}
-
-static u32
-trident_get_interrupt_mask(struct trident_card *card, unsigned int channel)
-{
- struct trident_pcm_bank *bank = &card->banks[channel];
- u32 addr = bank->addresses->aint;
- return inl(TRID_REG(card, addr));
-}
-
-static int
-trident_check_channel_interrupt(struct trident_card *card, unsigned int channel)
-{
- unsigned int mask = 1 << (channel & 0x1f);
- u32 reg = trident_get_interrupt_mask(card, channel >> 5);
-
-#ifdef DEBUG
- if (reg & mask)
- pr_debug("trident: channel %d has interrupt, %s = 0x%08x\n",
- channel, reg == T4D_AINT_B ? "AINT_B" : "AINT_A",
- reg);
-#endif /* DEBUG */
- return (reg & mask) ? 1 : 0;
-}
-
-static void
-trident_ack_channel_interrupt(struct trident_card *card, unsigned int channel)
-{
- unsigned int mask = 1 << (channel & 0x1f);
- struct trident_pcm_bank *bank = &card->banks[channel >> 5];
- u32 reg, addr = bank->addresses->aint;
-
- reg = inl(TRID_REG(card, addr));
- reg &= mask;
- outl(reg, TRID_REG(card, addr));
-
-#ifdef DEBUG
- reg = inl(TRID_REG(card, T4D_AINT_B));
- pr_debug("trident: Ack channel %d interrupt, AINT_B = 0x%08x\n",
- channel, reg);
-#endif /* DEBUG */
-}
-
-static struct trident_channel *
-trident_alloc_pcm_channel(struct trident_card *card)
-{
- struct trident_pcm_bank *bank;
- int idx;
-
- bank = &card->banks[BANK_B];
-
- for (idx = 31; idx >= 0; idx--) {
- if (!(bank->bitmap & (1 << idx))) {
- struct trident_channel *channel = &bank->channels[idx];
- bank->bitmap |= 1 << idx;
- channel->num = idx + 32;
- return channel;
- }
- }
-
- /* no more free channels available */
- printk(KERN_ERR "trident: no more channels available on Bank B.\n");
- return NULL;
-}
-
-static void
-trident_free_pcm_channel(struct trident_card *card, unsigned int channel)
-{
- int bank;
- unsigned char b;
-
- if (channel < 31 || channel > 63)
- return;
-
- if (card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_DX ||
- card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_NX) {
- b = inb(TRID_REG(card, T4D_REC_CH));
- if ((b & ~0x80) == channel)
- outb(0x0, TRID_REG(card, T4D_REC_CH));
- }
-
- bank = channel >> 5;
- channel = channel & 0x1f;
-
- card->banks[bank].bitmap &= ~(1 << (channel));
-}
-
-static struct trident_channel *
-cyber_alloc_pcm_channel(struct trident_card *card)
-{
- struct trident_pcm_bank *bank;
- int idx;
-
- /* The cyberpro 5050 has only 32 voices and one bank */
- /* .. at least they are not documented (if you want to call that
- * crap documentation), perhaps broken ? */
-
- bank = &card->banks[BANK_A];
-
- for (idx = 31; idx >= 0; idx--) {
- if (!(bank->bitmap & (1 << idx))) {
- struct trident_channel *channel = &bank->channels[idx];
- bank->bitmap |= 1 << idx;
- channel->num = idx;
- return channel;
- }
- }
-
- /* no more free channels available */
- printk(KERN_ERR "cyberpro5050: no more channels available on Bank A.\n");
- return NULL;
-}
-
-static void
-cyber_free_pcm_channel(struct trident_card *card, unsigned int channel)
-{
- if (channel > 31)
- return;
- card->banks[BANK_A].bitmap &= ~(1 << (channel));
-}
-
-static inline void
-cyber_outidx(int port, int idx, int data)
-{
- outb(idx, port);
- outb(data, port + 1);
-}
-
-static inline int
-cyber_inidx(int port, int idx)
-{
- outb(idx, port);
- return inb(port + 1);
-}
-
-static int
-cyber_init_ritual(struct trident_card *card)
-{
- /* some black magic, taken from SDK samples */
- /* remove this and nothing will work */
- int portDat;
- int ret = 0;
- unsigned long flags;
-
- /*
- * Keep interrupts off for the configure - we don't want to
- * clash with another cyberpro config event
- */
-
- spin_lock_irqsave(&card->lock, flags);
- portDat = cyber_inidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE);
- /* enable, if it was disabled */
- if ((portDat & CYBER_BMSK_AUENZ) != CYBER_BMSK_AUENZ_ENABLE) {
- printk(KERN_INFO "cyberpro5050: enabling audio controller\n");
- cyber_outidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE,
- portDat | CYBER_BMSK_AUENZ_ENABLE);
- /* check again if hardware is enabled now */
- portDat = cyber_inidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE);
- }
- if ((portDat & CYBER_BMSK_AUENZ) != CYBER_BMSK_AUENZ_ENABLE) {
- printk(KERN_ERR "cyberpro5050: initAudioAccess: no success\n");
- ret = -1;
- } else {
- cyber_outidx(CYBER_PORT_AUDIO, CYBER_IDX_IRQ_ENABLE,
- CYBER_BMSK_AUDIO_INT_ENABLE);
- cyber_outidx(CYBER_PORT_AUDIO, 0xbf, 0x01);
- cyber_outidx(CYBER_PORT_AUDIO, 0xba, 0x20);
- cyber_outidx(CYBER_PORT_AUDIO, 0xbb, 0x08);
- cyber_outidx(CYBER_PORT_AUDIO, 0xbf, 0x02);
- cyber_outidx(CYBER_PORT_AUDIO, 0xb3, 0x06);
- cyber_outidx(CYBER_PORT_AUDIO, 0xbf, 0x00);
- }
- spin_unlock_irqrestore(&card->lock, flags);
- return ret;
-}
-
-/* called with spin lock held */
-
-static int
-trident_load_channel_registers(struct trident_card *card, u32 * data,
- unsigned int channel)
-{
- int i;
-
- if (channel > 63)
- return 0;
-
- /* select hardware channel to write */
- outb(channel, TRID_REG(card, T4D_LFO_GC_CIR));
-
- /* Output the channel registers, but don't write register
- three to an ALI chip. */
- for (i = 0; i < CHANNEL_REGS; i++) {
- if (i == 3 && card->pci_id == PCI_DEVICE_ID_ALI_5451)
- continue;
- outl(data[i], TRID_REG(card, CHANNEL_START + 4 * i));
- }
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451 ||
- card->pci_id == PCI_DEVICE_ID_INTERG_5050) {
- outl(ALI_EMOD_Still, TRID_REG(card, ALI_EBUF1));
- outl(ALI_EMOD_Still, TRID_REG(card, ALI_EBUF2));
- }
- return 1;
-}
-
-/* called with spin lock held */
-static int
-trident_write_voice_regs(struct trident_state *state)
-{
- unsigned int data[CHANNEL_REGS + 1];
- struct trident_channel *channel;
-
- channel = state->dmabuf.channel;
-
- data[1] = channel->lba;
- data[4] = channel->control;
-
- switch (state->card->pci_id) {
- case PCI_DEVICE_ID_ALI_5451:
- data[0] = 0; /* Current Sample Offset */
- data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
- data[3] = 0;
- break;
- case PCI_DEVICE_ID_SI_7018:
- case PCI_DEVICE_ID_INTERG_5050:
- data[0] = 0; /* Current Sample Offset */
- data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
- data[3] = (channel->attribute << 16) | (channel->fm_vol & 0xffff);
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
- data[0] = 0; /* Current Sample Offset */
- data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
- data[3] = channel->fm_vol & 0xffff;
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
- data[0] = (channel->delta << 24);
- data[2] = ((channel->delta << 16) & 0xff000000) |
- (channel->eso & 0x00ffffff);
- data[3] = channel->fm_vol & 0xffff;
- break;
- default:
- return 0;
- }
-
- return trident_load_channel_registers(state->card, data, channel->num);
-}
-
-static int
-compute_rate_play(u32 rate)
-{
- int delta;
- /* We special case 44100 and 8000 since rounding with the equation
- does not give us an accurate enough value. For 11025 and 22050
- the equation gives us the best answer. All other frequencies will
- also use the equation. JDW */
- if (rate == 44100)
- delta = 0xeb3;
- else if (rate == 8000)
- delta = 0x2ab;
- else if (rate == 48000)
- delta = 0x1000;
- else
- delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
- return delta;
-}
-
-static int
-compute_rate_rec(u32 rate)
-{
- int delta;
-
- if (rate == 44100)
- delta = 0x116a;
- else if (rate == 8000)
- delta = 0x6000;
- else if (rate == 48000)
- delta = 0x1000;
- else
- delta = ((48000 << 12) / rate) & 0x0000ffff;
-
- return delta;
-}
-
-/* set playback sample rate */
-static unsigned int
-trident_set_dac_rate(struct trident_state *state, unsigned int rate)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
-
- if (rate > 48000)
- rate = 48000;
- if (rate < 4000)
- rate = 4000;
-
- dmabuf->rate = rate;
- dmabuf->channel->delta = compute_rate_play(rate);
-
- trident_write_voice_regs(state);
-
- pr_debug("trident: called trident_set_dac_rate : rate = %d\n", rate);
-
- return rate;
-}
-
-/* set recording sample rate */
-static unsigned int
-trident_set_adc_rate(struct trident_state *state, unsigned int rate)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
-
- if (rate > 48000)
- rate = 48000;
- if (rate < 4000)
- rate = 4000;
-
- dmabuf->rate = rate;
- dmabuf->channel->delta = compute_rate_rec(rate);
-
- trident_write_voice_regs(state);
-
- pr_debug("trident: called trident_set_adc_rate : rate = %d\n", rate);
-
- return rate;
-}
-
-/* prepare channel attributes for playback */
-static void
-trident_play_setup(struct trident_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- struct trident_channel *channel = dmabuf->channel;
-
- channel->lba = dmabuf->dma_handle;
- channel->delta = compute_rate_play(dmabuf->rate);
-
- channel->eso = dmabuf->dmasize >> sample_shift[dmabuf->fmt];
- channel->eso -= 1;
-
- if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) {
- channel->attribute = 0;
- if (state->card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- if ((channel->num == ALI_SPDIF_IN_CHANNEL) ||
- (channel->num == ALI_PCM_IN_CHANNEL))
- ali_disable_special_channel(state->card, channel->num);
- else if ((inl(TRID_REG(state->card, ALI_GLOBAL_CONTROL))
- & ALI_SPDIF_OUT_CH_ENABLE)
- && (channel->num == ALI_SPDIF_OUT_CHANNEL)) {
- ali_set_spdif_out_rate(state->card,
- state->dmabuf.rate);
- state->dmabuf.channel->delta = 0x1000;
- }
- }
- }
-
- channel->fm_vol = 0x0;
-
- channel->control = CHANNEL_LOOP;
- if (dmabuf->fmt & TRIDENT_FMT_16BIT) {
- /* 16-bits */
- channel->control |= CHANNEL_16BITS;
- /* signed */
- channel->control |= CHANNEL_SIGNED;
- }
- if (dmabuf->fmt & TRIDENT_FMT_STEREO)
- /* stereo */
- channel->control |= CHANNEL_STEREO;
-
- pr_debug("trident: trident_play_setup, LBA = 0x%08x, Delta = 0x%08x, "
- "ESO = 0x%08x, Control = 0x%08x\n", channel->lba,
- channel->delta, channel->eso, channel->control);
-
- trident_write_voice_regs(state);
-}
-
-/* prepare channel attributes for recording */
-static void
-trident_rec_setup(struct trident_state *state)
-{
- u16 w;
- u8 bval;
-
- struct trident_card *card = state->card;
- struct dmabuf *dmabuf = &state->dmabuf;
- struct trident_channel *channel = dmabuf->channel;
- unsigned int rate;
-
- /* Enable AC-97 ADC (capture) */
- switch (card->pci_id) {
- case PCI_DEVICE_ID_ALI_5451:
- ali_enable_special_channel(state);
- break;
- case PCI_DEVICE_ID_SI_7018:
- /* for 7018, the ac97 is always in playback/record (duplex) mode */
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
- w = inb(TRID_REG(card, DX_ACR2_AC97_COM_STAT));
- outb(w | 0x48, TRID_REG(card, DX_ACR2_AC97_COM_STAT));
- /* enable and set record channel */
- outb(0x80 | channel->num, TRID_REG(card, T4D_REC_CH));
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
- w = inw(TRID_REG(card, T4D_MISCINT));
- outw(w | 0x1000, TRID_REG(card, T4D_MISCINT));
- /* enable and set record channel */
- outb(0x80 | channel->num, TRID_REG(card, T4D_REC_CH));
- break;
- case PCI_DEVICE_ID_INTERG_5050:
- /* don't know yet, using special channel 22 in GC1(0xd4)? */
- break;
- default:
- return;
- }
-
- channel->lba = dmabuf->dma_handle;
- channel->delta = compute_rate_rec(dmabuf->rate);
- if ((card->pci_id == PCI_DEVICE_ID_ALI_5451) &&
- (channel->num == ALI_SPDIF_IN_CHANNEL)) {
- rate = ali_get_spdif_in_rate(card);
- if (rate == 0) {
- printk(KERN_WARNING "trident: ALi 5451 "
- "S/PDIF input setup error!\n");
- rate = 48000;
- }
- bval = inb(TRID_REG(card, ALI_SPDIF_CTRL));
- if (bval & 0x10) {
- outb(bval, TRID_REG(card, ALI_SPDIF_CTRL));
- printk(KERN_WARNING "trident: cleared ALi "
- "5451 S/PDIF parity error flag.\n");
- }
-
- if (rate != 48000)
- channel->delta = ((rate << 12) / dmabuf->rate) & 0x0000ffff;
- }
-
- channel->eso = dmabuf->dmasize >> sample_shift[dmabuf->fmt];
- channel->eso -= 1;
-
- if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) {
- channel->attribute = 0;
- }
-
- channel->fm_vol = 0x0;
-
- channel->control = CHANNEL_LOOP;
- if (dmabuf->fmt & TRIDENT_FMT_16BIT) {
- /* 16-bits */
- channel->control |= CHANNEL_16BITS;
- /* signed */
- channel->control |= CHANNEL_SIGNED;
- }
- if (dmabuf->fmt & TRIDENT_FMT_STEREO)
- /* stereo */
- channel->control |= CHANNEL_STEREO;
-
- pr_debug("trident: trident_rec_setup, LBA = 0x%08x, Delat = 0x%08x, "
- "ESO = 0x%08x, Control = 0x%08x\n", channel->lba,
- channel->delta, channel->eso, channel->control);
-
- trident_write_voice_regs(state);
-}
-
-/* get current playback/recording dma buffer pointer (byte offset from LBA),
- called with spinlock held! */
-static inline unsigned
-trident_get_dma_addr(struct trident_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- u32 cso;
-
- if (!dmabuf->enable)
- return 0;
-
- outb(dmabuf->channel->num, TRID_REG(state->card, T4D_LFO_GC_CIR));
-
- switch (state->card->pci_id) {
- case PCI_DEVICE_ID_ALI_5451:
- case PCI_DEVICE_ID_SI_7018:
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
- case PCI_DEVICE_ID_INTERG_5050:
- /* 16 bits ESO, CSO for 7018 and DX */
- cso = inw(TRID_REG(state->card, CH_DX_CSO_ALPHA_FMS + 2));
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
- /* 24 bits ESO, CSO for NX */
- cso = inl(TRID_REG(state->card, CH_NX_DELTA_CSO)) & 0x00ffffff;
- break;
- default:
- return 0;
- }
-
- pr_debug("trident: trident_get_dma_addr: chip reported channel: %d, "
- "cso = 0x%04x\n", dmabuf->channel->num, cso);
-
- /* ESO and CSO are in units of Samples, convert to byte offset */
- cso <<= sample_shift[dmabuf->fmt];
-
- return (cso % dmabuf->dmasize);
-}
-
-/* Stop recording (lock held) */
-static inline void
-__stop_adc(struct trident_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned int chan_num = dmabuf->channel->num;
- struct trident_card *card = state->card;
-
- dmabuf->enable &= ~ADC_RUNNING;
- trident_stop_voice(card, chan_num);
- trident_disable_voice_irq(card, chan_num);
-}
-
-static void
-stop_adc(struct trident_state *state)
-{
- struct trident_card *card = state->card;
- unsigned long flags;
-
- spin_lock_irqsave(&card->lock, flags);
- __stop_adc(state);
- spin_unlock_irqrestore(&card->lock, flags);
-}
-
-static void
-start_adc(struct trident_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned int chan_num = dmabuf->channel->num;
- struct trident_card *card = state->card;
- unsigned long flags;
-
- spin_lock_irqsave(&card->lock, flags);
- if ((dmabuf->mapped ||
- dmabuf->count < (signed) dmabuf->dmasize) &&
- dmabuf->ready) {
- dmabuf->enable |= ADC_RUNNING;
- trident_enable_voice_irq(card, chan_num);
- trident_start_voice(card, chan_num);
- }
- spin_unlock_irqrestore(&card->lock, flags);
-}
-
-/* stop playback (lock held) */
-static inline void
-__stop_dac(struct trident_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned int chan_num = dmabuf->channel->num;
- struct trident_card *card = state->card;
-
- dmabuf->enable &= ~DAC_RUNNING;
- trident_stop_voice(card, chan_num);
- if (state->chans_num == 6) {
- trident_stop_voice(card, state->other_states[0]->
- dmabuf.channel->num);
- trident_stop_voice(card, state->other_states[1]->
- dmabuf.channel->num);
- trident_stop_voice(card, state->other_states[2]->
- dmabuf.channel->num);
- trident_stop_voice(card, state->other_states[3]->
- dmabuf.channel->num);
- }
- trident_disable_voice_irq(card, chan_num);
-}
-
-static void
-stop_dac(struct trident_state *state)
-{
- struct trident_card *card = state->card;
- unsigned long flags;
-
- spin_lock_irqsave(&card->lock, flags);
- __stop_dac(state);
- spin_unlock_irqrestore(&card->lock, flags);
-}
-
-static void
-start_dac(struct trident_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned int chan_num = dmabuf->channel->num;
- struct trident_card *card = state->card;
- unsigned long flags;
-
- spin_lock_irqsave(&card->lock, flags);
- if ((dmabuf->mapped || dmabuf->count > 0) && dmabuf->ready) {
- dmabuf->enable |= DAC_RUNNING;
- trident_enable_voice_irq(card, chan_num);
- trident_start_voice(card, chan_num);
- if (state->chans_num == 6) {
- trident_start_voice(card, state->other_states[0]->
- dmabuf.channel->num);
- trident_start_voice(card, state->other_states[1]->
- dmabuf.channel->num);
- trident_start_voice(card, state->other_states[2]->
- dmabuf.channel->num);
- trident_start_voice(card, state->other_states[3]->
- dmabuf.channel->num);
- }
- }
- spin_unlock_irqrestore(&card->lock, flags);
-}
-
-#define DMABUF_DEFAULTORDER (15-PAGE_SHIFT)
-#define DMABUF_MINORDER 1
-
-/* alloc a DMA buffer of with a buffer of this order */
-static int
-alloc_dmabuf(struct dmabuf *dmabuf, struct pci_dev *pci_dev, int order)
-{
- void *rawbuf = NULL;
- struct page *page, *pend;
-
- if (!(rawbuf = pci_alloc_consistent(pci_dev, PAGE_SIZE << order,
- &dmabuf->dma_handle)))
- return -ENOMEM;
-
- pr_debug("trident: allocated %ld (order = %d) bytes at %p\n",
- PAGE_SIZE << order, order, rawbuf);
-
- dmabuf->ready = dmabuf->mapped = 0;
- dmabuf->rawbuf = rawbuf;
- dmabuf->buforder = order;
-
- /* now mark the pages as reserved; otherwise */
- /* remap_pfn_range doesn't do what we want */
- pend = virt_to_page(rawbuf + (PAGE_SIZE << order) - 1);
- for (page = virt_to_page(rawbuf); page <= pend; page++)
- SetPageReserved(page);
-
- return 0;
-}
-
-/* allocate the main DMA buffer, playback and recording buffer should be */
-/* allocated separately */
-static int
-alloc_main_dmabuf(struct trident_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- int order;
- int ret = -ENOMEM;
-
- /* alloc as big a chunk as we can, FIXME: is this necessary ?? */
- for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--) {
- if (!(ret = alloc_dmabuf(dmabuf, state->card->pci_dev, order)))
- return 0;
- /* else try again */
- }
- return ret;
-}
-
-/* deallocate a DMA buffer */
-static void
-dealloc_dmabuf(struct dmabuf *dmabuf, struct pci_dev *pci_dev)
-{
- struct page *page, *pend;
-
- if (dmabuf->rawbuf) {
- /* undo marking the pages as reserved */
- pend = virt_to_page(dmabuf->rawbuf + (PAGE_SIZE << dmabuf->buforder) - 1);
- for (page = virt_to_page(dmabuf->rawbuf); page <= pend; page++)
- ClearPageReserved(page);
- pci_free_consistent(pci_dev, PAGE_SIZE << dmabuf->buforder,
- dmabuf->rawbuf, dmabuf->dma_handle);
- dmabuf->rawbuf = NULL;
- }
- dmabuf->mapped = dmabuf->ready = 0;
-}
-
-static int
-prog_dmabuf(struct trident_state *state, enum dmabuf_mode rec)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned bytepersec;
- struct trident_state *s = state;
- unsigned bufsize, dma_nums;
- unsigned long flags;
- int ret, i, order;
-
- if ((ret = lock_set_fmt(state)) < 0)
- return ret;
-
- if (state->chans_num == 6)
- dma_nums = 5;
- else
- dma_nums = 1;
-
- for (i = 0; i < dma_nums; i++) {
- if (i > 0) {
- s = state->other_states[i - 1];
- dmabuf = &s->dmabuf;
- dmabuf->fmt = state->dmabuf.fmt;
- dmabuf->rate = state->dmabuf.rate;
- }
-
- spin_lock_irqsave(&s->card->lock, flags);
- dmabuf->hwptr = dmabuf->swptr = dmabuf->total_bytes = 0;
- dmabuf->count = dmabuf->error = 0;
- spin_unlock_irqrestore(&s->card->lock, flags);
-
- /* allocate DMA buffer if not allocated yet */
- if (!dmabuf->rawbuf) {
- if (i == 0) {
- if ((ret = alloc_main_dmabuf(state))) {
- unlock_set_fmt(state);
- return ret;
- }
- } else {
- ret = -ENOMEM;
- order = state->dmabuf.buforder - 1;
- if (order >= DMABUF_MINORDER) {
- ret = alloc_dmabuf(dmabuf,
- state->card->pci_dev,
- order);
- }
- if (ret) {
- /* release the main DMA buffer */
- dealloc_dmabuf(&state->dmabuf, state->card->pci_dev);
- /* release the auxiliary DMA buffers */
- for (i -= 2; i >= 0; i--)
- dealloc_dmabuf(&state->other_states[i]->dmabuf,
- state->card->pci_dev);
- unlock_set_fmt(state);
- return ret;
- }
- }
- }
- /* FIXME: figure out all this OSS fragment stuff */
- bytepersec = dmabuf->rate << sample_shift[dmabuf->fmt];
- bufsize = PAGE_SIZE << dmabuf->buforder;
- if (dmabuf->ossfragshift) {
- if ((1000 << dmabuf->ossfragshift) < bytepersec)
- dmabuf->fragshift = ld2(bytepersec / 1000);
- else
- dmabuf->fragshift = dmabuf->ossfragshift;
- } else {
- /* lets hand out reasonable big ass buffers by default */
- dmabuf->fragshift = (dmabuf->buforder + PAGE_SHIFT - 2);
- }
- dmabuf->numfrag = bufsize >> dmabuf->fragshift;
- while (dmabuf->numfrag < 4 && dmabuf->fragshift > 3) {
- dmabuf->fragshift--;
- dmabuf->numfrag = bufsize >> dmabuf->fragshift;
- }
- dmabuf->fragsize = 1 << dmabuf->fragshift;
- if (dmabuf->ossmaxfrags >= 4 && dmabuf->ossmaxfrags < dmabuf->numfrag)
- dmabuf->numfrag = dmabuf->ossmaxfrags;
- dmabuf->fragsamples = dmabuf->fragsize >> sample_shift[dmabuf->fmt];
- dmabuf->dmasize = dmabuf->numfrag << dmabuf->fragshift;
-
- memset(dmabuf->rawbuf, (dmabuf->fmt & TRIDENT_FMT_16BIT) ? 0 : 0x80,
- dmabuf->dmasize);
-
- spin_lock_irqsave(&s->card->lock, flags);
- if (rec == DM_RECORD)
- trident_rec_setup(s);
- else /* DM_PLAYBACK */
- trident_play_setup(s);
-
- spin_unlock_irqrestore(&s->card->lock, flags);
-
- /* set the ready flag for the dma buffer */
- dmabuf->ready = 1;
-
- pr_debug("trident: prog_dmabuf(%d), sample rate = %d, "
- "format = %d, numfrag = %d, fragsize = %d "
- "dmasize = %d\n", dmabuf->channel->num,
- dmabuf->rate, dmabuf->fmt, dmabuf->numfrag,
- dmabuf->fragsize, dmabuf->dmasize);
- }
- unlock_set_fmt(state);
- return 0;
-}
-
-
-static inline int prog_dmabuf_record(struct trident_state* state)
-{
- return prog_dmabuf(state, DM_RECORD);
-}
-
-static inline int prog_dmabuf_playback(struct trident_state* state)
-{
- return prog_dmabuf(state, DM_PLAYBACK);
-}
-
-/* we are doing quantum mechanics here, the buffer can only be empty, half or full filled i.e.
- |------------|------------| or |xxxxxxxxxxxx|------------| or |xxxxxxxxxxxx|xxxxxxxxxxxx|
- but we almost always get this
- |xxxxxx------|------------| or |xxxxxxxxxxxx|xxxxx-------|
- so we have to clear the tail space to "silence"
- |xxxxxx000000|------------| or |xxxxxxxxxxxx|xxxxxx000000|
-*/
-static void
-trident_clear_tail(struct trident_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned swptr;
- unsigned char silence = (dmabuf->fmt & TRIDENT_FMT_16BIT) ? 0 : 0x80;
- unsigned int len;
- unsigned long flags;
-
- spin_lock_irqsave(&state->card->lock, flags);
- swptr = dmabuf->swptr;
- spin_unlock_irqrestore(&state->card->lock, flags);
-
- if (swptr == 0 || swptr == dmabuf->dmasize / 2 ||
- swptr == dmabuf->dmasize)
- return;
-
- if (swptr < dmabuf->dmasize / 2)
- len = dmabuf->dmasize / 2 - swptr;
- else
- len = dmabuf->dmasize - swptr;
-
- memset(dmabuf->rawbuf + swptr, silence, len);
- if (state->card->pci_id != PCI_DEVICE_ID_ALI_5451) {
- spin_lock_irqsave(&state->card->lock, flags);
- dmabuf->swptr += len;
- dmabuf->count += len;
- spin_unlock_irqrestore(&state->card->lock, flags);
- }
-
- /* restart the dma machine in case it is halted */
- start_dac(state);
-}
-
-static int
-drain_dac(struct trident_state *state, int nonblock)
-{
- DECLARE_WAITQUEUE(wait, current);
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned long flags;
- unsigned long tmo;
- int count;
- unsigned long diff = 0;
-
- if (dmabuf->mapped || !dmabuf->ready)
- return 0;
-
- add_wait_queue(&dmabuf->wait, &wait);
- for (;;) {
- /* It seems that we have to set the current state to TASK_INTERRUPTIBLE
- every time to make the process really go to sleep */
- set_current_state(TASK_INTERRUPTIBLE);
-
- spin_lock_irqsave(&state->card->lock, flags);
- count = dmabuf->count;
- spin_unlock_irqrestore(&state->card->lock, flags);
-
- if (count <= 0)
- break;
-
- if (signal_pending(current))
- break;
-
- if (nonblock) {
- remove_wait_queue(&dmabuf->wait, &wait);
- set_current_state(TASK_RUNNING);
- return -EBUSY;
- }
-
- /* No matter how much data is left in the buffer, we have to wait until
- CSO == ESO/2 or CSO == ESO when address engine interrupts */
- if (state->card->pci_id == PCI_DEVICE_ID_ALI_5451 ||
- state->card->pci_id == PCI_DEVICE_ID_INTERG_5050) {
- diff = dmabuf->swptr - trident_get_dma_addr(state) + dmabuf->dmasize;
- diff = diff % (dmabuf->dmasize);
- tmo = (diff * HZ) / dmabuf->rate;
- } else {
- tmo = (dmabuf->dmasize * HZ) / dmabuf->rate;
- }
- tmo >>= sample_shift[dmabuf->fmt];
- if (!schedule_timeout(tmo ? tmo : 1) && tmo) {
- break;
- }
- }
- remove_wait_queue(&dmabuf->wait, &wait);
- set_current_state(TASK_RUNNING);
- if (signal_pending(current))
- return -ERESTARTSYS;
-
- return 0;
-}
-
-/* update buffer manangement pointers, especially, */
-/* dmabuf->count and dmabuf->hwptr */
-static void
-trident_update_ptr(struct trident_state *state)
-{
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned hwptr, swptr;
- int clear_cnt = 0;
- int diff;
- unsigned char silence;
- unsigned half_dmasize;
-
- /* update hardware pointer */
- hwptr = trident_get_dma_addr(state);
- diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize;
- dmabuf->hwptr = hwptr;
- dmabuf->total_bytes += diff;
-
- /* error handling and process wake up for ADC */
- if (dmabuf->enable == ADC_RUNNING) {
- if (dmabuf->mapped) {
- dmabuf->count -= diff;
- if (dmabuf->count >= (signed) dmabuf->fragsize)
- wake_up(&dmabuf->wait);
- } else {
- dmabuf->count += diff;
-
- if (dmabuf->count < 0 ||
- dmabuf->count > dmabuf->dmasize) {
- /* buffer underrun or buffer overrun, */
- /* we have no way to recover it here, just */
- /* stop the machine and let the process */
- /* force hwptr and swptr to sync */
- __stop_adc(state);
- dmabuf->error++;
- }
- if (dmabuf->count < (signed) dmabuf->dmasize / 2)
- wake_up(&dmabuf->wait);
- }
- }
-
- /* error handling and process wake up for DAC */
- if (dmabuf->enable == DAC_RUNNING) {
- if (dmabuf->mapped) {
- dmabuf->count += diff;
- if (dmabuf->count >= (signed) dmabuf->fragsize)
- wake_up(&dmabuf->wait);
- } else {
- dmabuf->count -= diff;
-
- if (dmabuf->count < 0 ||
- dmabuf->count > dmabuf->dmasize) {
- /* buffer underrun or buffer overrun, we have no way to recover
- it here, just stop the machine and let the process force hwptr
- and swptr to sync */
- __stop_dac(state);
- dmabuf->error++;
- } else if (!dmabuf->endcleared) {
- swptr = dmabuf->swptr;
- silence = (dmabuf->fmt & TRIDENT_FMT_16BIT ? 0 : 0x80);
- if (dmabuf->update_flag & ALI_ADDRESS_INT_UPDATE) {
- /* We must clear end data of 1/2 dmabuf if needed.
- According to 1/2 algorithm of Address Engine Interrupt,
- check the validation of the data of half dmasize. */
- half_dmasize = dmabuf->dmasize / 2;
- if ((diff = hwptr - half_dmasize) < 0)
- diff = hwptr;
- if ((dmabuf->count + diff) < half_dmasize) {
- //there is invalid data in the end of half buffer
- if ((clear_cnt = half_dmasize - swptr) < 0)
- clear_cnt += half_dmasize;
- //clear the invalid data
- memset(dmabuf->rawbuf + swptr, silence, clear_cnt);
- if (state->chans_num == 6) {
- clear_cnt = clear_cnt / 2;
- swptr = swptr / 2;
- memset(state->other_states[0]->dmabuf.rawbuf + swptr,
- silence, clear_cnt);
- memset(state->other_states[1]->dmabuf.rawbuf + swptr,
- silence, clear_cnt);
- memset(state->other_states[2]->dmabuf.rawbuf + swptr,
- silence, clear_cnt);
- memset(state->other_states[3]->dmabuf.rawbuf + swptr,
- silence, clear_cnt);
- }
- dmabuf->endcleared = 1;
- }
- } else if (dmabuf->count < (signed) dmabuf->fragsize) {
- clear_cnt = dmabuf->fragsize;
- if ((swptr + clear_cnt) > dmabuf->dmasize)
- clear_cnt = dmabuf->dmasize - swptr;
- memset(dmabuf->rawbuf + swptr, silence, clear_cnt);
- if (state->chans_num == 6) {
- clear_cnt = clear_cnt / 2;
- swptr = swptr / 2;
- memset(state->other_states[0]->dmabuf.rawbuf + swptr,
- silence, clear_cnt);
- memset(state->other_states[1]->dmabuf.rawbuf + swptr,
- silence, clear_cnt);
- memset(state->other_states[2]->dmabuf.rawbuf + swptr,
- silence, clear_cnt);
- memset(state->other_states[3]->dmabuf.rawbuf + swptr,
- silence, clear_cnt);
- }
- dmabuf->endcleared = 1;
- }
- }
- /* trident_update_ptr is called by interrupt handler or by process via
- ioctl/poll, we only wake up the waiting process when we have more
- than 1/2 buffer free (always true for interrupt handler) */
- if (dmabuf->count < (signed) dmabuf->dmasize / 2)
- wake_up(&dmabuf->wait);
- }
- }
- dmabuf->update_flag &= ~ALI_ADDRESS_INT_UPDATE;
-}
-
-static void
-trident_address_interrupt(struct trident_card *card)
-{
- int i;
- struct trident_state *state;
- unsigned int channel;
-
- /* Update the pointers for all channels we are running. */
- /* FIXME: should read interrupt status only once */
- for (i = 0; i < NR_HW_CH; i++) {
- channel = 63 - i;
- if (trident_check_channel_interrupt(card, channel)) {
- trident_ack_channel_interrupt(card, channel);
- if ((state = card->states[i]) != NULL) {
- trident_update_ptr(state);
- } else {
- printk(KERN_WARNING "trident: spurious channel "
- "irq %d.\n", channel);
- trident_stop_voice(card, channel);
- trident_disable_voice_irq(card, channel);
- }
- }
- }
-}
-
-static void
-ali_hwvol_control(struct trident_card *card, int opt)
-{
- u16 dwTemp, volume[2], mute, diff, *pVol[2];
-
- dwTemp = ali_ac97_read(card->ac97_codec[0], 0x02);
- mute = dwTemp & 0x8000;
- volume[0] = dwTemp & 0x001f;
- volume[1] = (dwTemp & 0x1f00) >> 8;
- if (volume[0] < volume[1]) {
- pVol[0] = &volume[0];
- pVol[1] = &volume[1];
- } else {
- pVol[1] = &volume[0];
- pVol[0] = &volume[1];
- }
- diff = *(pVol[1]) - *(pVol[0]);
-
- if (opt == 1) { // MUTE
- dwTemp ^= 0x8000;
- ali_ac97_write(card->ac97_codec[0],
- 0x02, dwTemp);
- } else if (opt == 2) { // Down
- if (mute)
- return;
- if (*(pVol[1]) < 0x001f) {
- (*pVol[1])++;
- *(pVol[0]) = *(pVol[1]) - diff;
- }
- dwTemp &= 0xe0e0;
- dwTemp |= (volume[0]) | (volume[1] << 8);
- ali_ac97_write(card->ac97_codec[0], 0x02, dwTemp);
- card->ac97_codec[0]->mixer_state[0] = ((32 - volume[0]) * 25 / 8) |
- (((32 - volume[1]) * 25 / 8) << 8);
- } else if (opt == 4) { // Up
- if (mute)
- return;
- if (*(pVol[0]) > 0) {
- (*pVol[0])--;
- *(pVol[1]) = *(pVol[0]) + diff;
- }
- dwTemp &= 0xe0e0;
- dwTemp |= (volume[0]) | (volume[1] << 8);
- ali_ac97_write(card->ac97_codec[0], 0x02, dwTemp);
- card->ac97_codec[0]->mixer_state[0] = ((32 - volume[0]) * 25 / 8) |
- (((32 - volume[1]) * 25 / 8) << 8);
- } else {
- /* Nothing needs doing */
- }
-}
-
-/*
- * Re-enable reporting of vol change after 0.1 seconds
- */
-
-static void
-ali_timeout(unsigned long ptr)
-{
- struct trident_card *card = (struct trident_card *) ptr;
- u16 temp = 0;
-
- /* Enable GPIO IRQ (MISCINT bit 18h) */
- temp = inw(TRID_REG(card, T4D_MISCINT + 2));
- temp |= 0x0004;
- outw(temp, TRID_REG(card, T4D_MISCINT + 2));
-}
-
-/*
- * Set up the timer to clear the vol change notification
- */
-
-static void
-ali_set_timer(struct trident_card *card)
-{
- /* Add Timer Routine to Enable GPIO IRQ */
- del_timer(&card->timer); /* Never queue twice */
- card->timer.function = ali_timeout;
- card->timer.data = (unsigned long) card;
- card->timer.expires = jiffies + HZ / 10;
- add_timer(&card->timer);
-}
-
-/*
- * Process a GPIO event
- */
-
-static void
-ali_queue_task(struct trident_card *card, int opt)
-{
- u16 temp;
-
- /* Disable GPIO IRQ (MISCINT bit 18h) */
- temp = inw(TRID_REG(card, T4D_MISCINT + 2));
- temp &= (u16) (~0x0004);
- outw(temp, TRID_REG(card, T4D_MISCINT + 2));
-
- /* Adjust the volume */
- ali_hwvol_control(card, opt);
-
- /* Set the timer for 1/10th sec */
- ali_set_timer(card);
-}
-
-static void
-cyber_address_interrupt(struct trident_card *card)
-{
- int i, irq_status;
- struct trident_state *state;
- unsigned int channel;
-
- /* Update the pointers for all channels we are running. */
- /* FIXED: read interrupt status only once */
- irq_status = inl(TRID_REG(card, T4D_AINT_A));
-
- pr_debug("cyber_address_interrupt: irq_status 0x%X\n", irq_status);
-
- for (i = 0; i < NR_HW_CH; i++) {
- channel = 31 - i;
- if (irq_status & (1 << channel)) {
- /* clear bit by writing a 1, zeroes are ignored */
- outl((1 << channel), TRID_REG(card, T4D_AINT_A));
-
- pr_debug("cyber_interrupt: channel %d\n", channel);
-
- if ((state = card->states[i]) != NULL) {
- trident_update_ptr(state);
- } else {
- printk(KERN_WARNING "cyber5050: spurious "
- "channel irq %d.\n", channel);
- trident_stop_voice(card, channel);
- trident_disable_voice_irq(card, channel);
- }
- }
- }
-}
-
-static irqreturn_t
-trident_interrupt(int irq, void *dev_id)
-{
- struct trident_card *card = (struct trident_card *) dev_id;
- u32 event;
- u32 gpio;
-
- spin_lock(&card->lock);
- event = inl(TRID_REG(card, T4D_MISCINT));
-
- pr_debug("trident: trident_interrupt called, MISCINT = 0x%08x\n",
- event);
-
- if (event & ADDRESS_IRQ) {
- card->address_interrupt(card);
- }
-
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- /* GPIO IRQ (H/W Volume Control) */
- event = inl(TRID_REG(card, T4D_MISCINT));
- if (event & (1 << 25)) {
- gpio = inl(TRID_REG(card, ALI_GPIO));
- if (!timer_pending(&card->timer))
- ali_queue_task(card, gpio & 0x07);
- }
- event = inl(TRID_REG(card, T4D_MISCINT));
- outl(event | (ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
- TRID_REG(card, T4D_MISCINT));
- spin_unlock(&card->lock);
- return IRQ_HANDLED;
- }
-
- /* manually clear interrupt status, bad hardware design, blame T^2 */
- outl((ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
- TRID_REG(card, T4D_MISCINT));
- spin_unlock(&card->lock);
- return IRQ_HANDLED;
-}
-
-/* in this loop, dmabuf.count signifies the amount of data that is waiting */
-/* to be copied to the user's buffer. it is filled by the dma machine and */
-/* drained by this loop. */
-static ssize_t
-trident_read(struct file *file, char __user *buffer, size_t count, loff_t * ppos)
-{
- struct trident_state *state = (struct trident_state *)file->private_data;
- struct dmabuf *dmabuf = &state->dmabuf;
- ssize_t ret = 0;
- unsigned long flags;
- unsigned swptr;
- int cnt;
-
- pr_debug("trident: trident_read called, count = %zd\n", count);
-
- VALIDATE_STATE(state);
-
- if (dmabuf->mapped)
- return -ENXIO;
- if (!access_ok(VERIFY_WRITE, buffer, count))
- return -EFAULT;
-
- mutex_lock(&state->sem);
- if (!dmabuf->ready && (ret = prog_dmabuf_record(state)))
- goto out;
-
- while (count > 0) {
- spin_lock_irqsave(&state->card->lock, flags);
- if (dmabuf->count > (signed) dmabuf->dmasize) {
- /* buffer overrun, we are recovering from */
- /* sleep_on_timeout, resync hwptr and swptr, */
- /* make process flush the buffer */
- dmabuf->count = dmabuf->dmasize;
- dmabuf->swptr = dmabuf->hwptr;
- }
- swptr = dmabuf->swptr;
- cnt = dmabuf->dmasize - swptr;
- if (dmabuf->count < cnt)
- cnt = dmabuf->count;
- spin_unlock_irqrestore(&state->card->lock, flags);
-
- if (cnt > count)
- cnt = count;
- if (cnt <= 0) {
- unsigned long tmo;
- /* buffer is empty, start the dma machine and */
- /* wait for data to be recorded */
- start_adc(state);
- if (file->f_flags & O_NONBLOCK) {
- if (!ret)
- ret = -EAGAIN;
- goto out;
- }
-
- mutex_unlock(&state->sem);
- /* No matter how much space left in the buffer, */
- /* we have to wait until CSO == ESO/2 or CSO == ESO */
- /* when address engine interrupts */
- tmo = (dmabuf->dmasize * HZ) / (dmabuf->rate * 2);
- tmo >>= sample_shift[dmabuf->fmt];
- /* There are two situations when sleep_on_timeout returns, one is when
- the interrupt is serviced correctly and the process is waked up by
- ISR ON TIME. Another is when timeout is expired, which means that
- either interrupt is NOT serviced correctly (pending interrupt) or it
- is TOO LATE for the process to be scheduled to run (scheduler latency)
- which results in a (potential) buffer overrun. And worse, there is
- NOTHING we can do to prevent it. */
- if (!interruptible_sleep_on_timeout(&dmabuf->wait, tmo)) {
- pr_debug(KERN_ERR "trident: recording schedule timeout, "
- "dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
- dmabuf->dmasize, dmabuf->fragsize, dmabuf->count,
- dmabuf->hwptr, dmabuf->swptr);
-
- /* a buffer overrun, we delay the recovery until next time the
- while loop begin and we REALLY have space to record */
- }
- if (signal_pending(current)) {
- if (!ret)
- ret = -ERESTARTSYS;
- goto out;
- }
- mutex_lock(&state->sem);
- if (dmabuf->mapped) {
- if (!ret)
- ret = -ENXIO;
- goto out;
- }
- continue;
- }
-
- if (copy_to_user(buffer, dmabuf->rawbuf + swptr, cnt)) {
- if (!ret)
- ret = -EFAULT;
- goto out;
- }
-
- swptr = (swptr + cnt) % dmabuf->dmasize;
-
- spin_lock_irqsave(&state->card->lock, flags);
- dmabuf->swptr = swptr;
- dmabuf->count -= cnt;
- spin_unlock_irqrestore(&state->card->lock, flags);
-
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- start_adc(state);
- }
-out:
- mutex_unlock(&state->sem);
- return ret;
-}
-
-/* in this loop, dmabuf.count signifies the amount of data that is waiting to be dma to
- the soundcard. it is drained by the dma machine and filled by this loop. */
-
-static ssize_t
-trident_write(struct file *file, const char __user *buffer, size_t count, loff_t * ppos)
-{
- struct trident_state *state = (struct trident_state *)file->private_data;
- struct dmabuf *dmabuf = &state->dmabuf;
- ssize_t ret;
- unsigned long flags;
- unsigned swptr;
- int cnt;
- unsigned int state_cnt;
- unsigned int copy_count;
- int lret; /* for lock_set_fmt */
-
- pr_debug("trident: trident_write called, count = %zd\n", count);
-
- VALIDATE_STATE(state);
-
- /*
- * Guard against an mmap or ioctl while writing
- */
-
- mutex_lock(&state->sem);
-
- if (dmabuf->mapped) {
- ret = -ENXIO;
- goto out;
- }
- if (!dmabuf->ready && (ret = prog_dmabuf_playback(state)))
- goto out;
-
- if (!access_ok(VERIFY_READ, buffer, count)) {
- ret = -EFAULT;
- goto out;
- }
-
- ret = 0;
-
- while (count > 0) {
- spin_lock_irqsave(&state->card->lock, flags);
- if (dmabuf->count < 0) {
- /* buffer underrun, we are recovering from */
- /* sleep_on_timeout, resync hwptr and swptr */
- dmabuf->count = 0;
- dmabuf->swptr = dmabuf->hwptr;
- }
- swptr = dmabuf->swptr;
- cnt = dmabuf->dmasize - swptr;
- if (dmabuf->count + cnt > dmabuf->dmasize)
- cnt = dmabuf->dmasize - dmabuf->count;
- spin_unlock_irqrestore(&state->card->lock, flags);
-
- if (cnt > count)
- cnt = count;
- if (cnt <= 0) {
- unsigned long tmo;
- /* buffer is full, start the dma machine and */
- /* wait for data to be played */
- start_dac(state);
- if (file->f_flags & O_NONBLOCK) {
- if (!ret)
- ret = -EAGAIN;
- goto out;
- }
- /* No matter how much data left in the buffer, */
- /* we have to wait until CSO == ESO/2 or CSO == ESO */
- /* when address engine interrupts */
- lock_set_fmt(state);
- tmo = (dmabuf->dmasize * HZ) / (dmabuf->rate * 2);
- tmo >>= sample_shift[dmabuf->fmt];
- unlock_set_fmt(state);
- mutex_unlock(&state->sem);
-
- /* There are two situations when sleep_on_timeout */
- /* returns, one is when the interrupt is serviced */
- /* correctly and the process is waked up by ISR */
- /* ON TIME. Another is when timeout is expired, which */
- /* means that either interrupt is NOT serviced */
- /* correctly (pending interrupt) or it is TOO LATE */
- /* for the process to be scheduled to run */
- /* (scheduler latency) which results in a (potential) */
- /* buffer underrun. And worse, there is NOTHING we */
- /* can do to prevent it. */
- if (!interruptible_sleep_on_timeout(&dmabuf->wait, tmo)) {
- pr_debug(KERN_ERR "trident: playback schedule "
- "timeout, dmasz %u fragsz %u count %i "
- "hwptr %u swptr %u\n", dmabuf->dmasize,
- dmabuf->fragsize, dmabuf->count,
- dmabuf->hwptr, dmabuf->swptr);
-
- /* a buffer underrun, we delay the recovery */
- /* until next time the while loop begin and */
- /* we REALLY have data to play */
- }
- if (signal_pending(current)) {
- if (!ret)
- ret = -ERESTARTSYS;
- goto out_nolock;
- }
- mutex_lock(&state->sem);
- if (dmabuf->mapped) {
- if (!ret)
- ret = -ENXIO;
- goto out;
- }
- continue;
- }
- if ((lret = lock_set_fmt(state)) < 0) {
- ret = lret;
- goto out;
- }
-
- if (state->chans_num == 6) {
- copy_count = 0;
- state_cnt = 0;
- if (ali_write_5_1(state, buffer, cnt, ©_count,
- &state_cnt) == -EFAULT) {
- if (state_cnt) {
- swptr = (swptr + state_cnt) % dmabuf->dmasize;
- spin_lock_irqsave(&state->card->lock, flags);
- dmabuf->swptr = swptr;
- dmabuf->count += state_cnt;
- dmabuf->endcleared = 0;
- spin_unlock_irqrestore(&state->card->lock, flags);
- }
- ret += copy_count;
- if (!ret)
- ret = -EFAULT;
- unlock_set_fmt(state);
- goto out;
- }
- } else {
- if (copy_from_user(dmabuf->rawbuf + swptr,
- buffer, cnt)) {
- if (!ret)
- ret = -EFAULT;
- unlock_set_fmt(state);
- goto out;
- }
- state_cnt = cnt;
- }
- unlock_set_fmt(state);
-
- swptr = (swptr + state_cnt) % dmabuf->dmasize;
-
- spin_lock_irqsave(&state->card->lock, flags);
- dmabuf->swptr = swptr;
- dmabuf->count += state_cnt;
- dmabuf->endcleared = 0;
- spin_unlock_irqrestore(&state->card->lock, flags);
-
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- start_dac(state);
- }
-out:
- mutex_unlock(&state->sem);
-out_nolock:
- return ret;
-}
-
-/* No kernel lock - we have our own spinlock */
-static unsigned int
-trident_poll(struct file *file, struct poll_table_struct *wait)
-{
- struct trident_state *state = (struct trident_state *)file->private_data;
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned long flags;
- unsigned int mask = 0;
-
- VALIDATE_STATE(state);
-
- /*
- * Guard against a parallel poll and write causing multiple
- * prog_dmabuf events
- */
-
- mutex_lock(&state->sem);
-
- if (file->f_mode & FMODE_WRITE) {
- if (!dmabuf->ready && prog_dmabuf_playback(state)) {
- mutex_unlock(&state->sem);
- return 0;
- }
- poll_wait(file, &dmabuf->wait, wait);
- }
- if (file->f_mode & FMODE_READ) {
- if (!dmabuf->ready && prog_dmabuf_record(state)) {
- mutex_unlock(&state->sem);
- return 0;
- }
- poll_wait(file, &dmabuf->wait, wait);
- }
-
- mutex_unlock(&state->sem);
-
- spin_lock_irqsave(&state->card->lock, flags);
- trident_update_ptr(state);
- if (file->f_mode & FMODE_READ) {
- if (dmabuf->count >= (signed) dmabuf->fragsize)
- mask |= POLLIN | POLLRDNORM;
- }
- if (file->f_mode & FMODE_WRITE) {
- if (dmabuf->mapped) {
- if (dmabuf->count >= (signed) dmabuf->fragsize)
- mask |= POLLOUT | POLLWRNORM;
- } else {
- if ((signed) dmabuf->dmasize >= dmabuf->count +
- (signed) dmabuf->fragsize)
- mask |= POLLOUT | POLLWRNORM;
- }
- }
- spin_unlock_irqrestore(&state->card->lock, flags);
-
- return mask;
-}
-
-static int
-trident_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct trident_state *state = (struct trident_state *)file->private_data;
- struct dmabuf *dmabuf = &state->dmabuf;
- int ret = -EINVAL;
- unsigned long size;
-
- VALIDATE_STATE(state);
-
- /*
- * Lock against poll read write or mmap creating buffers. Also lock
- * a read or write against an mmap.
- */
-
- mutex_lock(&state->sem);
-
- if (vma->vm_flags & VM_WRITE) {
- if ((ret = prog_dmabuf_playback(state)) != 0)
- goto out;
- } else if (vma->vm_flags & VM_READ) {
- if ((ret = prog_dmabuf_record(state)) != 0)
- goto out;
- } else
- goto out;
-
- ret = -EINVAL;
- if (vma->vm_pgoff != 0)
- goto out;
- size = vma->vm_end - vma->vm_start;
- if (size > (PAGE_SIZE << dmabuf->buforder))
- goto out;
- ret = -EAGAIN;
- if (remap_pfn_range(vma, vma->vm_start,
- virt_to_phys(dmabuf->rawbuf) >> PAGE_SHIFT,
- size, vma->vm_page_prot))
- goto out;
- dmabuf->mapped = 1;
- ret = 0;
-out:
- mutex_unlock(&state->sem);
- return ret;
-}
-
-static int
-trident_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct trident_state *state = (struct trident_state *)file->private_data;
- struct dmabuf *dmabuf = &state->dmabuf;
- unsigned long flags;
- audio_buf_info abinfo;
- count_info cinfo;
- int val, mapped, ret = 0;
- struct trident_card *card = state->card;
- void __user *argp = (void __user *)arg;
- int __user *p = argp;
-
- VALIDATE_STATE(state);
-
-
- mapped = ((file->f_mode & (FMODE_WRITE | FMODE_READ)) && dmabuf->mapped);
-
- pr_debug("trident: trident_ioctl, command = %2d, arg = 0x%08x\n",
- _IOC_NR(cmd), arg ? *p : 0);
-
- switch (cmd) {
- case OSS_GETVERSION:
- ret = put_user(SOUND_VERSION, p);
- break;
-
- case SNDCTL_DSP_RESET:
- /* FIXME: spin_lock ? */
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(state);
- synchronize_irq(card->irq);
- dmabuf->ready = 0;
- dmabuf->swptr = dmabuf->hwptr = 0;
- dmabuf->count = dmabuf->total_bytes = 0;
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(state);
- synchronize_irq(card->irq);
- dmabuf->ready = 0;
- dmabuf->swptr = dmabuf->hwptr = 0;
- dmabuf->count = dmabuf->total_bytes = 0;
- }
- break;
-
- case SNDCTL_DSP_SYNC:
- if (file->f_mode & FMODE_WRITE)
- ret = drain_dac(state, file->f_flags & O_NONBLOCK);
- break;
-
- case SNDCTL_DSP_SPEED: /* set smaple rate */
- if (get_user(val, p)) {
- ret = -EFAULT;
- break;
- }
- if (val >= 0) {
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(state);
- dmabuf->ready = 0;
- spin_lock_irqsave(&state->card->lock, flags);
- trident_set_dac_rate(state, val);
- spin_unlock_irqrestore(&state->card->lock, flags);
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(state);
- dmabuf->ready = 0;
- spin_lock_irqsave(&state->card->lock, flags);
- trident_set_adc_rate(state, val);
- spin_unlock_irqrestore(&state->card->lock, flags);
- }
- }
- ret = put_user(dmabuf->rate, p);
- break;
-
- case SNDCTL_DSP_STEREO: /* set stereo or mono channel */
- if (get_user(val, p)) {
- ret = -EFAULT;
- break;
- }
- if ((ret = lock_set_fmt(state)) < 0)
- return ret;
-
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(state);
- dmabuf->ready = 0;
- if (val)
- dmabuf->fmt |= TRIDENT_FMT_STEREO;
- else
- dmabuf->fmt &= ~TRIDENT_FMT_STEREO;
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(state);
- dmabuf->ready = 0;
- if (val)
- dmabuf->fmt |= TRIDENT_FMT_STEREO;
- else
- dmabuf->fmt &= ~TRIDENT_FMT_STEREO;
- }
- unlock_set_fmt(state);
- break;
-
- case SNDCTL_DSP_GETBLKSIZE:
- if (file->f_mode & FMODE_WRITE) {
- if ((val = prog_dmabuf_playback(state)))
- ret = val;
- else
- ret = put_user(dmabuf->fragsize, p);
- break;
- }
- if (file->f_mode & FMODE_READ) {
- if ((val = prog_dmabuf_record(state)))
- ret = val;
- else
- ret = put_user(dmabuf->fragsize, p);
- break;
- }
- /* neither READ nor WRITE? is this even possible? */
- ret = -EINVAL;
- break;
-
-
- case SNDCTL_DSP_GETFMTS: /* Returns a mask of supported sample format */
- ret = put_user(AFMT_S16_LE | AFMT_U16_LE | AFMT_S8 |
- AFMT_U8, p);
- break;
-
- case SNDCTL_DSP_SETFMT: /* Select sample format */
- if (get_user(val, p)) {
- ret = -EFAULT;
- break;
- }
- if ((ret = lock_set_fmt(state)) < 0)
- return ret;
-
- if (val != AFMT_QUERY) {
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(state);
- dmabuf->ready = 0;
- if (val == AFMT_S16_LE)
- dmabuf->fmt |= TRIDENT_FMT_16BIT;
- else
- dmabuf->fmt &= ~TRIDENT_FMT_16BIT;
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(state);
- dmabuf->ready = 0;
- if (val == AFMT_S16_LE)
- dmabuf->fmt |= TRIDENT_FMT_16BIT;
- else
- dmabuf->fmt &= ~TRIDENT_FMT_16BIT;
- }
- }
- unlock_set_fmt(state);
- ret = put_user((dmabuf->fmt & TRIDENT_FMT_16BIT) ? AFMT_S16_LE :
- AFMT_U8, p);
- break;
-
- case SNDCTL_DSP_CHANNELS:
- if (get_user(val, p)) {
- ret = -EFAULT;
- break;
- }
- if (val != 0) {
- if ((ret = lock_set_fmt(state)) < 0)
- return ret;
-
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(state);
- dmabuf->ready = 0;
-
- //prevent from memory leak
- if ((state->chans_num > 2) && (state->chans_num != val)) {
- ali_free_other_states_resources(state);
- state->chans_num = 1;
- }
-
- if (val >= 2) {
-
- dmabuf->fmt |= TRIDENT_FMT_STEREO;
- if ((val == 6) && (state->card->pci_id == PCI_DEVICE_ID_ALI_5451)) {
- if (card->rec_channel_use_count > 0) {
- printk(KERN_ERR "trident: Record is "
- "working on the card!\n");
- ret = -EBUSY;
- unlock_set_fmt(state);
- break;
- }
-
- ret = ali_setup_multi_channels(state->card, 6);
- if (ret < 0) {
- unlock_set_fmt(state);
- break;
- }
- mutex_lock(&state->card->open_mutex);
- ret = ali_allocate_other_states_resources(state, 6);
- if (ret < 0) {
- mutex_unlock(&state->card->open_mutex);
- unlock_set_fmt(state);
- break;
- }
- state->card->multi_channel_use_count++;
- mutex_unlock(&state->card->open_mutex);
- } else
- val = 2; /*yield to 2-channels */
- } else
- dmabuf->fmt &= ~TRIDENT_FMT_STEREO;
- state->chans_num = val;
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(state);
- dmabuf->ready = 0;
- if (val >= 2) {
- if (!((file->f_mode & FMODE_WRITE) &&
- (val == 6)))
- val = 2;
- dmabuf->fmt |= TRIDENT_FMT_STEREO;
- } else
- dmabuf->fmt &= ~TRIDENT_FMT_STEREO;
- state->chans_num = val;
- }
- unlock_set_fmt(state);
- }
- ret = put_user(val, p);
- break;
-
- case SNDCTL_DSP_POST:
- /* Cause the working fragment to be output */
- break;
-
- case SNDCTL_DSP_SUBDIVIDE:
- if (dmabuf->subdivision) {
- ret = -EINVAL;
- break;
- }
- if (get_user(val, p)) {
- ret = -EFAULT;
- break;
- }
- if (val != 1 && val != 2 && val != 4) {
- ret = -EINVAL;
- break;
- }
- dmabuf->subdivision = val;
- break;
-
- case SNDCTL_DSP_SETFRAGMENT:
- if (get_user(val, p)) {
- ret = -EFAULT;
- break;
- }
-
- dmabuf->ossfragshift = val & 0xffff;
- dmabuf->ossmaxfrags = (val >> 16) & 0xffff;
- if (dmabuf->ossfragshift < 4)
- dmabuf->ossfragshift = 4;
- if (dmabuf->ossfragshift > 15)
- dmabuf->ossfragshift = 15;
- if (dmabuf->ossmaxfrags < 4)
- dmabuf->ossmaxfrags = 4;
-
- break;
-
- case SNDCTL_DSP_GETOSPACE:
- if (!(file->f_mode & FMODE_WRITE)) {
- ret = -EINVAL;
- break;
- }
- if (!dmabuf->ready && (val = prog_dmabuf_playback(state)) != 0) {
- ret = val;
- break;
- }
- spin_lock_irqsave(&state->card->lock, flags);
- trident_update_ptr(state);
- abinfo.fragsize = dmabuf->fragsize;
- abinfo.bytes = dmabuf->dmasize - dmabuf->count;
- abinfo.fragstotal = dmabuf->numfrag;
- abinfo.fragments = abinfo.bytes >> dmabuf->fragshift;
- spin_unlock_irqrestore(&state->card->lock, flags);
- ret = copy_to_user(argp, &abinfo, sizeof (abinfo)) ?
- -EFAULT : 0;
- break;
-
- case SNDCTL_DSP_GETISPACE:
- if (!(file->f_mode & FMODE_READ)) {
- ret = -EINVAL;
- break;
- }
- if (!dmabuf->ready && (val = prog_dmabuf_record(state)) != 0) {
- ret = val;
- break;
- }
- spin_lock_irqsave(&state->card->lock, flags);
- trident_update_ptr(state);
- abinfo.fragsize = dmabuf->fragsize;
- abinfo.bytes = dmabuf->count;
- abinfo.fragstotal = dmabuf->numfrag;
- abinfo.fragments = abinfo.bytes >> dmabuf->fragshift;
- spin_unlock_irqrestore(&state->card->lock, flags);
- ret = copy_to_user(argp, &abinfo, sizeof (abinfo)) ?
- -EFAULT : 0;
- break;
-
- case SNDCTL_DSP_NONBLOCK:
- file->f_flags |= O_NONBLOCK;
- break;
-
- case SNDCTL_DSP_GETCAPS:
- ret = put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER |
- DSP_CAP_MMAP | DSP_CAP_BIND, p);
- break;
-
- case SNDCTL_DSP_GETTRIGGER:
- val = 0;
- if ((file->f_mode & FMODE_READ) && dmabuf->enable)
- val |= PCM_ENABLE_INPUT;
- if ((file->f_mode & FMODE_WRITE) && dmabuf->enable)
- val |= PCM_ENABLE_OUTPUT;
- ret = put_user(val, p);
- break;
-
- case SNDCTL_DSP_SETTRIGGER:
- if (get_user(val, p)) {
- ret = -EFAULT;
- break;
- }
- if (file->f_mode & FMODE_READ) {
- if (val & PCM_ENABLE_INPUT) {
- if (!dmabuf->ready &&
- (ret = prog_dmabuf_record(state)))
- break;
- start_adc(state);
- } else
- stop_adc(state);
- }
- if (file->f_mode & FMODE_WRITE) {
- if (val & PCM_ENABLE_OUTPUT) {
- if (!dmabuf->ready &&
- (ret = prog_dmabuf_playback(state)))
- break;
- start_dac(state);
- } else
- stop_dac(state);
- }
- break;
-
- case SNDCTL_DSP_GETIPTR:
- if (!(file->f_mode & FMODE_READ)) {
- ret = -EINVAL;
- break;
- }
- if (!dmabuf->ready && (val = prog_dmabuf_record(state))
- != 0) {
- ret = val;
- break;
- }
- spin_lock_irqsave(&state->card->lock, flags);
- trident_update_ptr(state);
- cinfo.bytes = dmabuf->total_bytes;
- cinfo.blocks = dmabuf->count >> dmabuf->fragshift;
- cinfo.ptr = dmabuf->hwptr;
- if (dmabuf->mapped)
- dmabuf->count &= dmabuf->fragsize - 1;
- spin_unlock_irqrestore(&state->card->lock, flags);
- ret = copy_to_user(argp, &cinfo, sizeof (cinfo)) ?
- -EFAULT : 0;
- break;
-
- case SNDCTL_DSP_GETOPTR:
- if (!(file->f_mode & FMODE_WRITE)) {
- ret = -EINVAL;
- break;
- }
- if (!dmabuf->ready && (val = prog_dmabuf_playback(state))
- != 0) {
- ret = val;
- break;
- }
-
- spin_lock_irqsave(&state->card->lock, flags);
- trident_update_ptr(state);
- cinfo.bytes = dmabuf->total_bytes;
- cinfo.blocks = dmabuf->count >> dmabuf->fragshift;
- cinfo.ptr = dmabuf->hwptr;
- if (dmabuf->mapped)
- dmabuf->count &= dmabuf->fragsize - 1;
- spin_unlock_irqrestore(&state->card->lock, flags);
- ret = copy_to_user(argp, &cinfo, sizeof (cinfo)) ?
- -EFAULT : 0;
- break;
-
- case SNDCTL_DSP_SETDUPLEX:
- ret = -EINVAL;
- break;
-
- case SNDCTL_DSP_GETODELAY:
- if (!(file->f_mode & FMODE_WRITE)) {
- ret = -EINVAL;
- break;
- }
- if (!dmabuf->ready && (val = prog_dmabuf_playback(state)) != 0) {
- ret = val;
- break;
- }
- spin_lock_irqsave(&state->card->lock, flags);
- trident_update_ptr(state);
- val = dmabuf->count;
- spin_unlock_irqrestore(&state->card->lock, flags);
- ret = put_user(val, p);
- break;
-
- case SOUND_PCM_READ_RATE:
- ret = put_user(dmabuf->rate, p);
- break;
-
- case SOUND_PCM_READ_CHANNELS:
- ret = put_user((dmabuf->fmt & TRIDENT_FMT_STEREO) ? 2 : 1,
- p);
- break;
-
- case SOUND_PCM_READ_BITS:
- ret = put_user((dmabuf->fmt & TRIDENT_FMT_16BIT) ? AFMT_S16_LE :
- AFMT_U8, p);
- break;
-
- case SNDCTL_DSP_GETCHANNELMASK:
- ret = put_user(DSP_BIND_FRONT | DSP_BIND_SURR |
- DSP_BIND_CENTER_LFE, p);
- break;
-
- case SNDCTL_DSP_BIND_CHANNEL:
- if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) {
- ret = -EINVAL;
- break;
- }
-
- if (get_user(val, p)) {
- ret = -EFAULT;
- break;
- }
- if (val == DSP_BIND_QUERY) {
- val = dmabuf->channel->attribute | 0x3c00;
- val = attr2mask[val >> 8];
- } else {
- dmabuf->ready = 0;
- if (file->f_mode & FMODE_READ)
- dmabuf->channel->attribute = (CHANNEL_REC |
- SRC_ENABLE);
- if (file->f_mode & FMODE_WRITE)
- dmabuf->channel->attribute = (CHANNEL_SPC_PB |
- SRC_ENABLE);
- dmabuf->channel->attribute |= mask2attr[ffs(val)];
- }
- ret = put_user(val, p);
- break;
-
- case SNDCTL_DSP_MAPINBUF:
- case SNDCTL_DSP_MAPOUTBUF:
- case SNDCTL_DSP_SETSYNCRO:
- case SOUND_PCM_WRITE_FILTER:
- case SOUND_PCM_READ_FILTER:
- default:
- ret = -EINVAL;
- break;
-
- }
- return ret;
-}
-
-static int
-trident_open(struct inode *inode, struct file *file)
-{
- int i = 0;
- int minor = iminor(inode);
- struct trident_card *card = devs;
- struct trident_state *state = NULL;
- struct dmabuf *dmabuf = NULL;
- unsigned long flags;
-
- /* Added by Matt Wu 01-05-2001 */
- /* TODO: there's some redundacy here wrt the check below */
- /* for multi_use_count > 0. Should we return -EBUSY or find */
- /* a different card? for now, don't break current behaviour */
- /* -- mulix */
- if (file->f_mode & FMODE_READ) {
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- if (card->multi_channel_use_count > 0)
- return -EBUSY;
- }
- }
-
- /* find an available virtual channel (instance of /dev/dsp) */
- while (card != NULL) {
- mutex_lock(&card->open_mutex);
- if (file->f_mode & FMODE_READ) {
- /* Skip opens on cards that are in 6 channel mode */
- if (card->multi_channel_use_count > 0) {
- mutex_unlock(&card->open_mutex);
- card = card->next;
- continue;
- }
- }
- for (i = 0; i < NR_HW_CH; i++) {
- if (card->states[i] == NULL) {
- state = card->states[i] = kzalloc(sizeof(*state), GFP_KERNEL);
- if (state == NULL) {
- mutex_unlock(&card->open_mutex);
- return -ENOMEM;
- }
- mutex_init(&state->sem);
- dmabuf = &state->dmabuf;
- goto found_virt;
- }
- }
- mutex_unlock(&card->open_mutex);
- card = card->next;
- }
- /* no more virtual channel avaiable */
- if (!state) {
- return -ENODEV;
- }
- found_virt:
- /* found a free virtual channel, allocate hardware channels */
- if (file->f_mode & FMODE_READ)
- dmabuf->channel = card->alloc_rec_pcm_channel(card);
- else
- dmabuf->channel = card->alloc_pcm_channel(card);
-
- if (dmabuf->channel == NULL) {
- kfree(card->states[i]);
- card->states[i] = NULL;
- return -ENODEV;
- }
-
- /* initialize the virtual channel */
- state->virt = i;
- state->card = card;
- state->magic = TRIDENT_STATE_MAGIC;
- init_waitqueue_head(&dmabuf->wait);
- file->private_data = state;
-
- /* set default sample format. According to OSS Programmer's */
- /* Guide /dev/dsp should be default to unsigned 8-bits, mono, */
- /* with sample rate 8kHz and /dev/dspW will accept 16-bits sample */
- if (file->f_mode & FMODE_WRITE) {
- dmabuf->fmt &= ~TRIDENT_FMT_MASK;
- if ((minor & 0x0f) == SND_DEV_DSP16)
- dmabuf->fmt |= TRIDENT_FMT_16BIT;
- dmabuf->ossfragshift = 0;
- dmabuf->ossmaxfrags = 0;
- dmabuf->subdivision = 0;
- if (card->pci_id == PCI_DEVICE_ID_SI_7018) {
- /* set default channel attribute to normal playback */
- dmabuf->channel->attribute = CHANNEL_PB;
- }
- spin_lock_irqsave(&card->lock, flags);
- trident_set_dac_rate(state, 8000);
- spin_unlock_irqrestore(&card->lock, flags);
- }
-
- if (file->f_mode & FMODE_READ) {
- /* FIXME: Trident 4d can only record in signed 16-bits stereo, */
- /* 48kHz sample, to be dealed with in trident_set_adc_rate() ?? */
- dmabuf->fmt &= ~TRIDENT_FMT_MASK;
- if ((minor & 0x0f) == SND_DEV_DSP16)
- dmabuf->fmt |= TRIDENT_FMT_16BIT;
- dmabuf->ossfragshift = 0;
- dmabuf->ossmaxfrags = 0;
- dmabuf->subdivision = 0;
- if (card->pci_id == PCI_DEVICE_ID_SI_7018) {
- /* set default channel attribute to 0x8a80, record from
- PCM L/R FIFO and mono = (left + right + 1)/2 */
- dmabuf->channel->attribute = (CHANNEL_REC | PCM_LR |
- MONO_MIX);
- }
- spin_lock_irqsave(&card->lock, flags);
- trident_set_adc_rate(state, 8000);
- spin_unlock_irqrestore(&card->lock, flags);
-
- /* Added by Matt Wu 01-05-2001 */
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451)
- card->rec_channel_use_count++;
- }
-
- state->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
- mutex_unlock(&card->open_mutex);
-
- pr_debug("trident: open virtual channel %d, hard channel %d\n",
- state->virt, dmabuf->channel->num);
-
- return nonseekable_open(inode, file);
-}
-
-static int
-trident_release(struct inode *inode, struct file *file)
-{
- struct trident_state *state = (struct trident_state *)file->private_data;
- struct trident_card *card;
- struct dmabuf *dmabuf;
-
- VALIDATE_STATE(state);
-
- card = state->card;
- dmabuf = &state->dmabuf;
-
- if (file->f_mode & FMODE_WRITE) {
- trident_clear_tail(state);
- drain_dac(state, file->f_flags & O_NONBLOCK);
- }
-
- pr_debug("trident: closing virtual channel %d, hard channel %d\n",
- state->virt, dmabuf->channel->num);
-
- /* stop DMA state machine and free DMA buffers/channels */
- mutex_lock(&card->open_mutex);
-
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(state);
- dealloc_dmabuf(&state->dmabuf, state->card->pci_dev);
- state->card->free_pcm_channel(state->card, dmabuf->channel->num);
-
- /* Added by Matt Wu */
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- if (state->chans_num > 2) {
- if (card->multi_channel_use_count-- < 0)
- card->multi_channel_use_count = 0;
- if (card->multi_channel_use_count == 0)
- ali_close_multi_channels();
- ali_free_other_states_resources(state);
- }
- }
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(state);
- dealloc_dmabuf(&state->dmabuf, state->card->pci_dev);
- state->card->free_pcm_channel(state->card, dmabuf->channel->num);
-
- /* Added by Matt Wu */
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- if (card->rec_channel_use_count-- < 0)
- card->rec_channel_use_count = 0;
- }
- }
-
- card->states[state->virt] = NULL;
- kfree(state);
-
- /* we're covered by the open_mutex */
- mutex_unlock(&card->open_mutex);
-
- return 0;
-}
-
-static const struct file_operations trident_audio_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .read = trident_read,
- .write = trident_write,
- .poll = trident_poll,
- .ioctl = trident_ioctl,
- .mmap = trident_mmap,
- .open = trident_open,
- .release = trident_release,
-};
-
-/* trident specific AC97 functions */
-/* Write AC97 codec registers */
-static void
-trident_ac97_set(struct ac97_codec *codec, u8 reg, u16 val)
-{
- struct trident_card *card = (struct trident_card *)codec->private_data;
- unsigned int address, mask, busy;
- unsigned short count = 0xffff;
- unsigned long flags;
- u32 data;
-
- data = ((u32) val) << 16;
-
- switch (card->pci_id) {
- default:
- case PCI_DEVICE_ID_SI_7018:
- address = SI_AC97_WRITE;
- mask = SI_AC97_BUSY_WRITE | SI_AC97_AUDIO_BUSY;
- if (codec->id)
- mask |= SI_AC97_SECONDARY;
- busy = SI_AC97_BUSY_WRITE;
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
- address = DX_ACR0_AC97_W;
- mask = busy = DX_AC97_BUSY_WRITE;
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
- address = NX_ACR1_AC97_W;
- mask = NX_AC97_BUSY_WRITE;
- if (codec->id)
- mask |= NX_AC97_WRITE_SECONDARY;
- busy = NX_AC97_BUSY_WRITE;
- break;
- case PCI_DEVICE_ID_INTERG_5050:
- address = SI_AC97_WRITE;
- mask = busy = SI_AC97_BUSY_WRITE;
- if (codec->id)
- mask |= SI_AC97_SECONDARY;
- break;
- }
-
- spin_lock_irqsave(&card->lock, flags);
- do {
- if ((inw(TRID_REG(card, address)) & busy) == 0)
- break;
- } while (--count);
-
- data |= (mask | (reg & AC97_REG_ADDR));
-
- if (count == 0) {
- printk(KERN_ERR "trident: AC97 CODEC write timed out.\n");
- spin_unlock_irqrestore(&card->lock, flags);
- return;
- }
-
- outl(data, TRID_REG(card, address));
- spin_unlock_irqrestore(&card->lock, flags);
-}
-
-/* Read AC97 codec registers */
-static u16
-trident_ac97_get(struct ac97_codec *codec, u8 reg)
-{
- struct trident_card *card = (struct trident_card *)codec->private_data;
- unsigned int address, mask, busy;
- unsigned short count = 0xffff;
- unsigned long flags;
- u32 data;
-
- switch (card->pci_id) {
- default:
- case PCI_DEVICE_ID_SI_7018:
- address = SI_AC97_READ;
- mask = SI_AC97_BUSY_READ | SI_AC97_AUDIO_BUSY;
- if (codec->id)
- mask |= SI_AC97_SECONDARY;
- busy = SI_AC97_BUSY_READ;
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
- address = DX_ACR1_AC97_R;
- mask = busy = DX_AC97_BUSY_READ;
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
- if (codec->id)
- address = NX_ACR3_AC97_R_SECONDARY;
- else
- address = NX_ACR2_AC97_R_PRIMARY;
- mask = NX_AC97_BUSY_READ;
- busy = NX_AC97_BUSY_READ | NX_AC97_BUSY_DATA;
- break;
- case PCI_DEVICE_ID_INTERG_5050:
- address = SI_AC97_READ;
- mask = busy = SI_AC97_BUSY_READ;
- if (codec->id)
- mask |= SI_AC97_SECONDARY;
- break;
- }
-
- data = (mask | (reg & AC97_REG_ADDR));
-
- spin_lock_irqsave(&card->lock, flags);
- outl(data, TRID_REG(card, address));
- do {
- data = inl(TRID_REG(card, address));
- if ((data & busy) == 0)
- break;
- } while (--count);
- spin_unlock_irqrestore(&card->lock, flags);
-
- if (count == 0) {
- printk(KERN_ERR "trident: AC97 CODEC read timed out.\n");
- data = 0;
- }
- return ((u16) (data >> 16));
-}
-
-/* rewrite ac97 read and write mixer register by hulei for ALI*/
-static int
-acquirecodecaccess(struct trident_card *card)
-{
- u16 wsemamask = 0x6000; /* bit 14..13 */
- u16 wsemabits;
- u16 wcontrol;
- int block = 0;
- int ncount = 25;
- while (1) {
- wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE));
- wsemabits = wcontrol & wsemamask;
-
- if (wsemabits == 0x4000)
- return 1; /* 0x4000 is audio ,then success */
- if (ncount-- < 0)
- break;
- if (wsemabits == 0) {
- unlock:
- outl(((u32) (wcontrol & 0x1eff) | 0x00004000),
- TRID_REG(card, ALI_AC97_WRITE));
- continue;
- }
- udelay(20);
- }
- if (!block) {
- pr_debug("accesscodecsemaphore: try unlock\n");
- block = 1;
- goto unlock;
- }
- return 0;
-}
-
-static void
-releasecodecaccess(struct trident_card *card)
-{
- unsigned long wcontrol;
- wcontrol = inl(TRID_REG(card, ALI_AC97_WRITE));
- outl((wcontrol & 0xffff1eff), TRID_REG(card, ALI_AC97_WRITE));
-}
-
-static int
-waitforstimertick(struct trident_card *card)
-{
- unsigned long chk1, chk2;
- unsigned int wcount = 0xffff;
- chk1 = inl(TRID_REG(card, ALI_STIMER));
-
- while (1) {
- chk2 = inl(TRID_REG(card, ALI_STIMER));
- if ((wcount > 0) && chk1 != chk2)
- return 1;
- if (wcount <= 0)
- break;
- udelay(50);
- }
- return 0;
-}
-
-/* Read AC97 codec registers for ALi*/
-static u16
-ali_ac97_get(struct trident_card *card, int secondary, u8 reg)
-{
- unsigned int address, mask;
- unsigned int ncount;
- unsigned long aud_reg;
- u32 data;
- u16 wcontrol;
- unsigned long flags;
-
- BUG_ON(!card);
-
- address = ALI_AC97_READ;
- if (card->revision == ALI_5451_V02) {
- address = ALI_AC97_WRITE;
- }
- mask = ALI_AC97_READ_ACTION | ALI_AC97_AUDIO_BUSY;
- if (secondary)
- mask |= ALI_AC97_SECONDARY;
-
- spin_lock_irqsave(&card->lock, flags);
-
- if (!acquirecodecaccess(card))
- printk(KERN_ERR "access codec fail\n");
-
- wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE));
- wcontrol &= 0xfe00;
- wcontrol |= (0x8000 | reg);
- outw(wcontrol, TRID_REG(card, ALI_AC97_WRITE));
-
- data = (mask | (reg & AC97_REG_ADDR));
-
- if (!waitforstimertick(card)) {
- printk(KERN_ERR "ali_ac97_read: BIT_CLOCK is dead\n");
- goto releasecodec;
- }
-
- udelay(20);
-
- ncount = 10;
-
- while (1) {
- if ((inw(TRID_REG(card, ALI_AC97_WRITE)) & ALI_AC97_BUSY_READ)
- != 0)
- break;
- if (ncount <= 0)
- break;
- if (ncount-- == 1) {
- pr_debug("ali_ac97_read :try clear busy flag\n");
- aud_reg = inl(TRID_REG(card, ALI_AC97_WRITE));
- outl((aud_reg & 0xffff7fff),
- TRID_REG(card, ALI_AC97_WRITE));
- }
- udelay(10);
- }
-
- data = inl(TRID_REG(card, address));
-
- spin_unlock_irqrestore(&card->lock, flags);
-
- return ((u16) (data >> 16));
-
- releasecodec:
- releasecodecaccess(card);
- spin_unlock_irqrestore(&card->lock, flags);
- printk(KERN_ERR "ali_ac97_read: AC97 CODEC read timed out.\n");
- return 0;
-}
-
-/* Write AC97 codec registers for hulei*/
-static void
-ali_ac97_set(struct trident_card *card, int secondary, u8 reg, u16 val)
-{
- unsigned int address, mask;
- unsigned int ncount;
- u32 data;
- u16 wcontrol;
- unsigned long flags;
-
- data = ((u32) val) << 16;
-
- BUG_ON(!card);
-
- address = ALI_AC97_WRITE;
- mask = ALI_AC97_WRITE_ACTION | ALI_AC97_AUDIO_BUSY;
- if (secondary)
- mask |= ALI_AC97_SECONDARY;
- if (card->revision == ALI_5451_V02)
- mask |= ALI_AC97_WRITE_MIXER_REGISTER;
-
- spin_lock_irqsave(&card->lock, flags);
- if (!acquirecodecaccess(card))
- printk(KERN_ERR "ali_ac97_write: access codec fail\n");
-
- wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE));
- wcontrol &= 0xff00;
- wcontrol |= (0x8100 | reg); /* bit 8=1: (ali1535 )reserved/ */
- /* ali1535+ write */
- outl((data | wcontrol), TRID_REG(card, ALI_AC97_WRITE));
-
- if (!waitforstimertick(card)) {
- printk(KERN_ERR "BIT_CLOCK is dead\n");
- goto releasecodec;
- }
-
- ncount = 10;
- while (1) {
- wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE));
- if (!(wcontrol & 0x8000))
- break;
- if (ncount <= 0)
- break;
- if (ncount-- == 1) {
- pr_debug("ali_ac97_set :try clear busy flag!!\n");
- outw(wcontrol & 0x7fff,
- TRID_REG(card, ALI_AC97_WRITE));
- }
- udelay(10);
- }
-
- releasecodec:
- releasecodecaccess(card);
- spin_unlock_irqrestore(&card->lock, flags);
- return;
-}
-
-static void
-ali_enable_special_channel(struct trident_state *stat)
-{
- struct trident_card *card = stat->card;
- unsigned long s_channels;
-
- s_channels = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
- s_channels |= (1 << stat->dmabuf.channel->num);
- outl(s_channels, TRID_REG(card, ALI_GLOBAL_CONTROL));
-}
-
-static u16
-ali_ac97_read(struct ac97_codec *codec, u8 reg)
-{
- int id;
- u16 data;
- struct trident_card *card = NULL;
-
- /* Added by Matt Wu */
- BUG_ON(!codec);
-
- card = (struct trident_card *) codec->private_data;
-
- if (!card->mixer_regs_ready)
- return ali_ac97_get(card, codec->id, reg);
-
- /*
- * FIXME: need to stop this caching some registers
- */
- if (codec->id)
- id = 1;
- else
- id = 0;
-
- data = card->mixer_regs[reg / 2][id];
- return data;
-}
-
-static void
-ali_ac97_write(struct ac97_codec *codec, u8 reg, u16 val)
-{
- int id;
- struct trident_card *card;
-
- /* Added by Matt Wu */
- BUG_ON(!codec);
-
- card = (struct trident_card *) codec->private_data;
-
- if (!card->mixer_regs_ready) {
- ali_ac97_set(card, codec->id, reg, val);
- return;
- }
-
- if (codec->id)
- id = 1;
- else
- id = 0;
-
- card->mixer_regs[reg / 2][id] = val;
- ali_ac97_set(card, codec->id, reg, val);
-}
-
-/*
-flag: ALI_SPDIF_OUT_TO_SPDIF_OUT
- ALI_PCM_TO_SPDIF_OUT
-*/
-
-static void
-ali_setup_spdif_out(struct trident_card *card, int flag)
-{
- unsigned long spdif;
- unsigned char ch;
-
- char temp;
- struct pci_dev *pci_dev = NULL;
-
- pci_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533,
- pci_dev);
- if (pci_dev == NULL)
- return;
- pci_read_config_byte(pci_dev, 0x61, &temp);
- temp |= 0x40;
- pci_write_config_byte(pci_dev, 0x61, temp);
- pci_read_config_byte(pci_dev, 0x7d, &temp);
- temp |= 0x01;
- pci_write_config_byte(pci_dev, 0x7d, temp);
- pci_read_config_byte(pci_dev, 0x7e, &temp);
- temp &= (~0x20);
- temp |= 0x10;
- pci_write_config_byte(pci_dev, 0x7e, temp);
-
- pci_dev_put(pci_dev);
-
- ch = inb(TRID_REG(card, ALI_SCTRL));
- outb(ch | ALI_SPDIF_OUT_ENABLE, TRID_REG(card, ALI_SCTRL));
- ch = inb(TRID_REG(card, ALI_SPDIF_CTRL));
- outb(ch & ALI_SPDIF_OUT_CH_STATUS, TRID_REG(card, ALI_SPDIF_CTRL));
-
- if (flag & ALI_SPDIF_OUT_TO_SPDIF_OUT) {
- spdif = inw(TRID_REG(card, ALI_GLOBAL_CONTROL));
- spdif |= ALI_SPDIF_OUT_CH_ENABLE;
- spdif &= ALI_SPDIF_OUT_SEL_SPDIF;
- outw(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
- spdif = inw(TRID_REG(card, ALI_SPDIF_CS));
- if (flag & ALI_SPDIF_OUT_NON_PCM)
- spdif |= 0x0002;
- else
- spdif &= (~0x0002);
- outw(spdif, TRID_REG(card, ALI_SPDIF_CS));
- } else {
- spdif = inw(TRID_REG(card, ALI_GLOBAL_CONTROL));
- spdif |= ALI_SPDIF_OUT_SEL_PCM;
- outw(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
- }
-}
-
-static void
-ali_disable_special_channel(struct trident_card *card, int ch)
-{
- unsigned long sc;
-
- sc = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
- sc &= ~(1 << ch);
- outl(sc, TRID_REG(card, ALI_GLOBAL_CONTROL));
-}
-
-static void
-ali_disable_spdif_in(struct trident_card *card)
-{
- unsigned long spdif;
-
- spdif = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
- spdif &= (~ALI_SPDIF_IN_SUPPORT);
- outl(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
-
- ali_disable_special_channel(card, ALI_SPDIF_IN_CHANNEL);
-}
-
-static void
-ali_setup_spdif_in(struct trident_card *card)
-{
- unsigned long spdif;
-
- //Set SPDIF IN Supported
- spdif = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
- spdif |= ALI_SPDIF_IN_SUPPORT;
- outl(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
-
- //Set SPDIF IN Rec
- spdif = inl(TRID_REG(card, ALI_GLOBAL_CONTROL));
- spdif |= ALI_SPDIF_IN_CH_ENABLE;
- outl(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL));
-
- spdif = inb(TRID_REG(card, ALI_SPDIF_CTRL));
- spdif |= ALI_SPDIF_IN_CH_STATUS;
- outb(spdif, TRID_REG(card, ALI_SPDIF_CTRL));
-/*
- spdif = inb(TRID_REG(card, ALI_SPDIF_CTRL));
- spdif |= ALI_SPDIF_IN_FUNC_ENABLE;
- outb(spdif, TRID_REG(card, ALI_SPDIF_CTRL));
-*/
-}
-
-static void
-ali_delay(struct trident_card *card, int interval)
-{
- unsigned long begintimer, currenttimer;
-
- begintimer = inl(TRID_REG(card, ALI_STIMER));
- currenttimer = inl(TRID_REG(card, ALI_STIMER));
-
- while (currenttimer < begintimer + interval)
- currenttimer = inl(TRID_REG(card, ALI_STIMER));
-}
-
-static void
-ali_detect_spdif_rate(struct trident_card *card)
-{
- u16 wval = 0;
- u16 count = 0;
- u8 bval = 0, R1 = 0, R2 = 0;
-
- bval = inb(TRID_REG(card, ALI_SPDIF_CTRL));
- bval |= 0x02;
- outb(bval, TRID_REG(card, ALI_SPDIF_CTRL));
-
- bval = inb(TRID_REG(card, ALI_SPDIF_CTRL + 1));
- bval |= 0x1F;
- outb(bval, TRID_REG(card, ALI_SPDIF_CTRL + 1));
-
- while (((R1 < 0x0B) || (R1 > 0x0E)) && (R1 != 0x12) &&
- count <= 50000) {
- count++;
-
- ali_delay(card, 6);
-
- bval = inb(TRID_REG(card, ALI_SPDIF_CTRL + 1));
- R1 = bval & 0x1F;
- }
-
- if (count > 50000) {
- printk(KERN_WARNING "trident: Error in "
- "ali_detect_spdif_rate!\n");
- return;
- }
-
- count = 0;
-
- while (count <= 50000) {
- count++;
-
- ali_delay(card, 6);
-
- bval = inb(TRID_REG(card, ALI_SPDIF_CTRL + 1));
- R2 = bval & 0x1F;
-
- if (R2 != R1)
- R1 = R2;
- else
- break;
- }
-
- if (count > 50000) {
- printk(KERN_WARNING "trident: Error in "
- "ali_detect_spdif_rate!\n");
- return;
- }
-
- switch (R2) {
- case 0x0b:
- case 0x0c:
- case 0x0d:
- case 0x0e:
- wval = inw(TRID_REG(card, ALI_SPDIF_CTRL + 2));
- wval &= 0xE0F0;
- wval |= (u16) 0x09 << 8 | (u16) 0x05;
- outw(wval, TRID_REG(card, ALI_SPDIF_CTRL + 2));
-
- bval = inb(TRID_REG(card, ALI_SPDIF_CS + 3)) & 0xF0;
- outb(bval | 0x02, TRID_REG(card, ALI_SPDIF_CS + 3));
- break;
-
- case 0x12:
- wval = inw(TRID_REG(card, ALI_SPDIF_CTRL + 2));
- wval &= 0xE0F0;
- wval |= (u16) 0x0E << 8 | (u16) 0x08;
- outw(wval, TRID_REG(card, ALI_SPDIF_CTRL + 2));
-
- bval = inb(TRID_REG(card, ALI_SPDIF_CS + 3)) & 0xF0;
- outb(bval | 0x03, TRID_REG(card, ALI_SPDIF_CS + 3));
- break;
-
- default:
- break;
- }
-
-}
-
-static unsigned int
-ali_get_spdif_in_rate(struct trident_card *card)
-{
- u32 dwRate = 0;
- u8 bval = 0;
-
- ali_detect_spdif_rate(card);
-
- bval = inb(TRID_REG(card, ALI_SPDIF_CTRL));
- bval &= 0x7F;
- bval |= 0x40;
- outb(bval, TRID_REG(card, ALI_SPDIF_CTRL));
-
- bval = inb(TRID_REG(card, ALI_SPDIF_CS + 3));
- bval &= 0x0F;
-
- switch (bval) {
- case 0:
- dwRate = 44100;
- break;
- case 1:
- dwRate = 48000;
- break;
- case 2:
- dwRate = 32000;
- break;
- default:
- // Error occurs
- break;
- }
-
- return dwRate;
-
-}
-
-static int
-ali_close_multi_channels(void)
-{
- char temp = 0;
- struct pci_dev *pci_dev = NULL;
-
- pci_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533,
- pci_dev);
- if (pci_dev == NULL)
- return -1;
-
- pci_read_config_byte(pci_dev, 0x59, &temp);
- temp &= ~0x80;
- pci_write_config_byte(pci_dev, 0x59, temp);
-
- pci_dev_put(pci_dev);
-
- pci_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101,
- NULL);
- if (pci_dev == NULL)
- return -1;
-
- pci_read_config_byte(pci_dev, 0xB8, &temp);
- temp &= ~0x20;
- pci_write_config_byte(pci_dev, 0xB8, temp);
-
- pci_dev_put(pci_dev);
-
- return 0;
-}
-
-static int
-ali_setup_multi_channels(struct trident_card *card, int chan_nums)
-{
- unsigned long dwValue;
- char temp = 0;
- struct pci_dev *pci_dev = NULL;
-
- pci_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533,
- pci_dev);
- if (pci_dev == NULL)
- return -1;
- pci_read_config_byte(pci_dev, 0x59, &temp);
- temp |= 0x80;
- pci_write_config_byte(pci_dev, 0x59, temp);
-
- pci_dev_put(pci_dev);
-
- pci_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101,
- NULL);
- if (pci_dev == NULL)
- return -1;
- pci_read_config_byte(pci_dev, (int) 0xB8, &temp);
- temp |= 0x20;
- pci_write_config_byte(pci_dev, (int) 0xB8, (u8) temp);
-
- pci_dev_put(pci_dev);
-
- if (chan_nums == 6) {
- dwValue = inl(TRID_REG(card, ALI_SCTRL)) | 0x000f0000;
- outl(dwValue, TRID_REG(card, ALI_SCTRL));
- mdelay(4);
- dwValue = inl(TRID_REG(card, ALI_SCTRL));
- if (dwValue & 0x2000000) {
- ali_ac97_write(card->ac97_codec[0], 0x02, 8080);
- ali_ac97_write(card->ac97_codec[0], 0x36, 0);
- ali_ac97_write(card->ac97_codec[0], 0x38, 0);
- /*
- * On a board with a single codec you won't get the
- * surround. On other boards configure it.
- */
- if (card->ac97_codec[1] != NULL) {
- ali_ac97_write(card->ac97_codec[1], 0x36, 0);
- ali_ac97_write(card->ac97_codec[1], 0x38, 0);
- ali_ac97_write(card->ac97_codec[1], 0x02, 0x0606);
- ali_ac97_write(card->ac97_codec[1], 0x18, 0x0303);
- ali_ac97_write(card->ac97_codec[1], 0x74, 0x3);
- }
- return 1;
- }
- }
- return -EINVAL;
-}
-
-static void
-ali_free_pcm_channel(struct trident_card *card, unsigned int channel)
-{
- int bank;
-
- if (channel > 31)
- return;
-
- bank = channel >> 5;
- channel = channel & 0x1f;
-
- card->banks[bank].bitmap &= ~(1 << (channel));
-}
-
-static int
-ali_allocate_other_states_resources(struct trident_state *state, int chan_nums)
-{
- struct trident_card *card = state->card;
- struct trident_state *s;
- int i, state_count = 0;
- struct trident_pcm_bank *bank;
- struct trident_channel *channel;
- unsigned long num;
-
- bank = &card->banks[BANK_A];
-
- if (chan_nums != 6)
- return 0;
-
- for (i = 0; (i < ALI_CHANNELS) && (state_count != 4); i++) {
- if (card->states[i])
- continue;
-
- num = ali_multi_channels_5_1[state_count];
- if (!(bank->bitmap & (1 << num))) {
- bank->bitmap |= 1 << num;
- channel = &bank->channels[num];
- channel->num = num;
- } else {
- state_count--;
- for (; state_count >= 0; state_count--) {
- kfree(state->other_states[state_count]);
- num = ali_multi_channels_5_1[state_count];
- ali_free_pcm_channel(card, num);
- }
- return -EBUSY;
- }
- s = card->states[i] = kzalloc(sizeof(*state), GFP_KERNEL);
- if (!s) {
- num = ali_multi_channels_5_1[state_count];
- ali_free_pcm_channel(card, num);
- state_count--;
- for (; state_count >= 0; state_count--) {
- num = ali_multi_channels_5_1[state_count];
- ali_free_pcm_channel(card, num);
- kfree(state->other_states[state_count]);
- }
- return -ENOMEM;
- }
-
- s->dmabuf.channel = channel;
- s->dmabuf.ossfragshift = s->dmabuf.ossmaxfrags =
- s->dmabuf.subdivision = 0;
- init_waitqueue_head(&s->dmabuf.wait);
- s->magic = card->magic;
- s->card = card;
- s->virt = i;
- ali_enable_special_channel(s);
- state->other_states[state_count++] = s;
- }
-
- if (state_count != 4) {
- state_count--;
- for (; state_count >= 0; state_count--) {
- kfree(state->other_states[state_count]);
- num = ali_multi_channels_5_1[state_count];
- ali_free_pcm_channel(card, num);
- }
- return -EBUSY;
- }
- return 0;
-}
-
-#ifdef CONFIG_PM
-/* save registers for ALi Power Management */
-static struct ali_saved_registers {
- unsigned long global_regs[ALI_GLOBAL_REGS];
- unsigned long channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
- unsigned mixer_regs[ALI_MIXER_REGS];
-} ali_registers;
-
-static void
-ali_save_regs(struct trident_card *card)
-{
- unsigned long flags;
- int i, j;
-
- spin_lock_irqsave(&card->lock, flags);
-
- ali_registers.global_regs[0x2c] = inl(TRID_REG(card, T4D_MISCINT));
- //ali_registers.global_regs[0x20] = inl(TRID_REG(card,T4D_START_A));
- ali_registers.global_regs[0x21] = inl(TRID_REG(card, T4D_STOP_A));
-
- //disable all IRQ bits
- outl(ALI_DISABLE_ALL_IRQ, TRID_REG(card, T4D_MISCINT));
-
- for (i = 1; i < ALI_MIXER_REGS; i++)
- ali_registers.mixer_regs[i] = ali_ac97_read(card->ac97_codec[0],
- i * 2);
-
- for (i = 0; i < ALI_GLOBAL_REGS; i++) {
- if ((i * 4 == T4D_MISCINT) || (i * 4 == T4D_STOP_A))
- continue;
- ali_registers.global_regs[i] = inl(TRID_REG(card, i * 4));
- }
-
- for (i = 0; i < ALI_CHANNELS; i++) {
- outb(i, TRID_REG(card, T4D_LFO_GC_CIR));
- for (j = 0; j < ALI_CHANNEL_REGS; j++)
- ali_registers.channel_regs[i][j] = inl(TRID_REG(card,
- j * 4 + 0xe0));
- }
-
- //Stop all HW channel
- outl(ALI_STOP_ALL_CHANNELS, TRID_REG(card, T4D_STOP_A));
-
- spin_unlock_irqrestore(&card->lock, flags);
-}
-
-static void
-ali_restore_regs(struct trident_card *card)
-{
- unsigned long flags;
- int i, j;
-
- spin_lock_irqsave(&card->lock, flags);
-
- for (i = 1; i < ALI_MIXER_REGS; i++)
- ali_ac97_write(card->ac97_codec[0], i * 2,
- ali_registers.mixer_regs[i]);
-
- for (i = 0; i < ALI_CHANNELS; i++) {
- outb(i, TRID_REG(card, T4D_LFO_GC_CIR));
- for (j = 0; j < ALI_CHANNEL_REGS; j++)
- outl(ali_registers.channel_regs[i][j],
- TRID_REG(card, j * 4 + 0xe0));
- }
-
- for (i = 0; i < ALI_GLOBAL_REGS; i++) {
- if ((i * 4 == T4D_MISCINT) || (i * 4 == T4D_STOP_A) ||
- (i * 4 == T4D_START_A))
- continue;
- outl(ali_registers.global_regs[i], TRID_REG(card, i * 4));
- }
-
- //start HW channel
- outl(ali_registers.global_regs[0x20], TRID_REG(card, T4D_START_A));
- //restore IRQ enable bits
- outl(ali_registers.global_regs[0x2c], TRID_REG(card, T4D_MISCINT));
-
- spin_unlock_irqrestore(&card->lock, flags);
-}
-
-static int
-trident_suspend(struct pci_dev *dev, pm_message_t unused)
-{
- struct trident_card *card = pci_get_drvdata(dev);
-
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- ali_save_regs(card);
- }
- return 0;
-}
-
-static int
-trident_resume(struct pci_dev *dev)
-{
- struct trident_card *card = pci_get_drvdata(dev);
-
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- ali_restore_regs(card);
- }
- return 0;
-}
-#endif
-
-static struct trident_channel *
-ali_alloc_pcm_channel(struct trident_card *card)
-{
- struct trident_pcm_bank *bank;
- int idx;
-
- bank = &card->banks[BANK_A];
-
- if (inl(TRID_REG(card, ALI_GLOBAL_CONTROL)) &
- (ALI_SPDIF_OUT_CH_ENABLE)) {
- idx = ALI_SPDIF_OUT_CHANNEL;
- if (!(bank->bitmap & (1 << idx))) {
- struct trident_channel *channel = &bank->channels[idx];
- bank->bitmap |= 1 << idx;
- channel->num = idx;
- return channel;
- }
- }
-
- for (idx = ALI_PCM_OUT_CHANNEL_FIRST; idx <= ALI_PCM_OUT_CHANNEL_LAST;
- idx++) {
- if (!(bank->bitmap & (1 << idx))) {
- struct trident_channel *channel = &bank->channels[idx];
- bank->bitmap |= 1 << idx;
- channel->num = idx;
- return channel;
- }
- }
-
- /* no more free channels avaliable */
-#if 0
- printk(KERN_ERR "ali: no more channels available on Bank A.\n");
-#endif /* 0 */
- return NULL;
-}
-
-static struct trident_channel *
-ali_alloc_rec_pcm_channel(struct trident_card *card)
-{
- struct trident_pcm_bank *bank;
- int idx;
-
- if (inl(TRID_REG(card, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_IN_SUPPORT)
- idx = ALI_SPDIF_IN_CHANNEL;
- else
- idx = ALI_PCM_IN_CHANNEL;
-
- bank = &card->banks[BANK_A];
-
- if (!(bank->bitmap & (1 << idx))) {
- struct trident_channel *channel = &bank->channels[idx];
- bank->bitmap |= 1 << idx;
- channel->num = idx;
- return channel;
- }
-
- /* no free recordable channels avaliable */
-#if 0
- printk(KERN_ERR "ali: no recordable channels available on Bank A.\n");
-#endif /* 0 */
- return NULL;
-}
-
-static void
-ali_set_spdif_out_rate(struct trident_card *card, unsigned int rate)
-{
- unsigned char ch_st_sel;
- unsigned short status_rate;
-
- switch (rate) {
- case 44100:
- status_rate = 0;
- break;
- case 32000:
- status_rate = 0x300;
- break;
- case 48000:
- default:
- status_rate = 0x200;
- break;
- }
-
- /* select spdif_out */
- ch_st_sel = inb(TRID_REG(card, ALI_SPDIF_CTRL)) & ALI_SPDIF_OUT_CH_STATUS;
-
- ch_st_sel |= 0x80; /* select right */
- outb(ch_st_sel, TRID_REG(card, ALI_SPDIF_CTRL));
- outb(status_rate | 0x20, TRID_REG(card, ALI_SPDIF_CS + 2));
-
- ch_st_sel &= (~0x80); /* select left */
- outb(ch_st_sel, TRID_REG(card, ALI_SPDIF_CTRL));
- outw(status_rate | 0x10, TRID_REG(card, ALI_SPDIF_CS + 2));
-}
-
-static void
-ali_address_interrupt(struct trident_card *card)
-{
- int i, channel;
- struct trident_state *state;
- u32 mask, channel_mask;
-
- mask = trident_get_interrupt_mask(card, 0);
- for (i = 0; i < NR_HW_CH; i++) {
- if ((state = card->states[i]) == NULL)
- continue;
- channel = state->dmabuf.channel->num;
- if ((channel_mask = 1 << channel) & mask) {
- mask &= ~channel_mask;
- trident_ack_channel_interrupt(card, channel);
- udelay(100);
- state->dmabuf.update_flag |= ALI_ADDRESS_INT_UPDATE;
- trident_update_ptr(state);
- }
- }
- if (mask) {
- for (i = 0; i < NR_HW_CH; i++) {
- if (mask & (1 << i)) {
- printk("ali: spurious channel irq %d.\n", i);
- trident_ack_channel_interrupt(card, i);
- trident_stop_voice(card, i);
- trident_disable_voice_irq(card, i);
- }
- }
- }
-}
-
-/* Updating the values of counters of other_states' DMAs without lock
-protection is no harm because all DMAs of multi-channels and interrupt
-depend on a master state's DMA, and changing the counters of the master
-state DMA is protected by a spinlock.
-*/
-static int
-ali_write_5_1(struct trident_state *state, const char __user *buf,
- int cnt_for_multi_channel, unsigned int *copy_count,
- unsigned int *state_cnt)
-{
-
- struct dmabuf *dmabuf = &state->dmabuf;
- struct dmabuf *dmabuf_temp;
- const char __user *buffer = buf;
- unsigned swptr, other_dma_nums, sample_s;
- unsigned int i, loop;
-
- other_dma_nums = 4;
- sample_s = sample_size[dmabuf->fmt] >> 1;
- swptr = dmabuf->swptr;
-
- if ((i = state->multi_channels_adjust_count) > 0) {
- if (i == 1) {
- if (copy_from_user(dmabuf->rawbuf + swptr,
- buffer, sample_s))
- return -EFAULT;
- seek_offset(swptr, buffer, cnt_for_multi_channel,
- sample_s, *copy_count);
- i--;
- (*state_cnt) += sample_s;
- state->multi_channels_adjust_count++;
- } else
- i = i - (state->chans_num - other_dma_nums);
- for (; (i < other_dma_nums) && (cnt_for_multi_channel > 0); i++) {
- dmabuf_temp = &state->other_states[i]->dmabuf;
- if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr,
- buffer, sample_s))
- return -EFAULT;
- seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel,
- sample_s, *copy_count);
- }
- if (cnt_for_multi_channel == 0)
- state->multi_channels_adjust_count += i;
- }
- if (cnt_for_multi_channel > 0) {
- loop = cnt_for_multi_channel / (state->chans_num * sample_s);
- for (i = 0; i < loop; i++) {
- if (copy_from_user(dmabuf->rawbuf + swptr, buffer,
- sample_s * 2))
- return -EFAULT;
- seek_offset(swptr, buffer, cnt_for_multi_channel,
- sample_s * 2, *copy_count);
- (*state_cnt) += (sample_s * 2);
-
- dmabuf_temp = &state->other_states[0]->dmabuf;
- if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr,
- buffer, sample_s))
- return -EFAULT;
- seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel,
- sample_s, *copy_count);
-
- dmabuf_temp = &state->other_states[1]->dmabuf;
- if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr,
- buffer, sample_s))
- return -EFAULT;
- seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel,
- sample_s, *copy_count);
-
- dmabuf_temp = &state->other_states[2]->dmabuf;
- if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr,
- buffer, sample_s))
- return -EFAULT;
- seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel,
- sample_s, *copy_count);
-
- dmabuf_temp = &state->other_states[3]->dmabuf;
- if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr,
- buffer, sample_s))
- return -EFAULT;
- seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel,
- sample_s, *copy_count);
- }
-
- if (cnt_for_multi_channel > 0) {
- state->multi_channels_adjust_count = cnt_for_multi_channel / sample_s;
-
- if (copy_from_user(dmabuf->rawbuf + swptr, buffer, sample_s))
- return -EFAULT;
- seek_offset(swptr, buffer, cnt_for_multi_channel,
- sample_s, *copy_count);
- (*state_cnt) += sample_s;
-
- if (cnt_for_multi_channel > 0) {
- if (copy_from_user(dmabuf->rawbuf + swptr,
- buffer, sample_s))
- return -EFAULT;
- seek_offset(swptr, buffer, cnt_for_multi_channel,
- sample_s, *copy_count);
- (*state_cnt) += sample_s;
-
- if (cnt_for_multi_channel > 0) {
- int diff = state->chans_num - other_dma_nums;
- loop = state->multi_channels_adjust_count - diff;
- for (i = 0; i < loop; i++) {
- dmabuf_temp = &state->other_states[i]->dmabuf;
- if (copy_from_user(dmabuf_temp->rawbuf +
- dmabuf_temp->swptr,
- buffer, sample_s))
- return -EFAULT;
- seek_offset(dmabuf_temp->swptr, buffer,
- cnt_for_multi_channel,
- sample_s, *copy_count);
- }
- }
- }
- } else
- state->multi_channels_adjust_count = 0;
- }
- for (i = 0; i < other_dma_nums; i++) {
- dmabuf_temp = &state->other_states[i]->dmabuf;
- dmabuf_temp->swptr = dmabuf_temp->swptr % dmabuf_temp->dmasize;
- }
- return *state_cnt;
-}
-
-static void
-ali_free_other_states_resources(struct trident_state *state)
-{
- int i;
- struct trident_card *card = state->card;
- struct trident_state *s;
- unsigned other_states_count;
-
- other_states_count = state->chans_num - 2; /* except PCM L/R channels */
- for (i = 0; i < other_states_count; i++) {
- s = state->other_states[i];
- dealloc_dmabuf(&s->dmabuf, card->pci_dev);
- ali_disable_special_channel(s->card, s->dmabuf.channel->num);
- state->card->free_pcm_channel(s->card, s->dmabuf.channel->num);
- card->states[s->virt] = NULL;
- kfree(s);
- }
-}
-
-static struct proc_dir_entry *res;
-
-static int
-ali_write_proc(struct file *file, const char __user *buffer, unsigned long count, void *data)
-{
- struct trident_card *card = (struct trident_card *) data;
- unsigned long flags;
- char c;
-
- if (count < 0)
- return -EINVAL;
- if (count == 0)
- return 0;
- if (get_user(c, buffer))
- return -EFAULT;
-
- spin_lock_irqsave(&card->lock, flags);
- switch (c) {
- case '0':
- ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT);
- ali_disable_special_channel(card, ALI_SPDIF_OUT_CHANNEL);
- break;
- case '1':
- ali_setup_spdif_out(card, ALI_SPDIF_OUT_TO_SPDIF_OUT |
- ALI_SPDIF_OUT_PCM);
- break;
- case '2':
- ali_setup_spdif_out(card, ALI_SPDIF_OUT_TO_SPDIF_OUT |
- ALI_SPDIF_OUT_NON_PCM);
- break;
- case '3':
- ali_disable_spdif_in(card); //default
- break;
- case '4':
- ali_setup_spdif_in(card);
- break;
- }
- spin_unlock_irqrestore(&card->lock, flags);
-
- return count;
-}
-
-/* OSS /dev/mixer file operation methods */
-static int
-trident_open_mixdev(struct inode *inode, struct file *file)
-{
- int i = 0;
- int minor = iminor(inode);
- struct trident_card *card = devs;
-
- for (card = devs; card != NULL; card = card->next)
- for (i = 0; i < NR_AC97; i++)
- if (card->ac97_codec[i] != NULL &&
- card->ac97_codec[i]->dev_mixer == minor)
- goto match;
-
- if (!card) {
- return -ENODEV;
- }
- match:
- file->private_data = card->ac97_codec[i];
-
- return nonseekable_open(inode, file);
-}
-
-static int
-trident_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- struct ac97_codec *codec = (struct ac97_codec *) file->private_data;
-
- return codec->mixer_ioctl(codec, cmd, arg);
-}
-
-static const struct file_operations trident_mixer_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .ioctl = trident_ioctl_mixdev,
- .open = trident_open_mixdev,
-};
-
-static int
-ali_reset_5451(struct trident_card *card)
-{
- struct pci_dev *pci_dev = NULL;
- unsigned int dwVal;
- unsigned short wCount, wReg;
-
- pci_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533,
- pci_dev);
- if (pci_dev == NULL)
- return -1;
-
- pci_read_config_dword(pci_dev, 0x7c, &dwVal);
- pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
- udelay(5000);
- pci_read_config_dword(pci_dev, 0x7c, &dwVal);
- pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
- udelay(5000);
- pci_dev_put(pci_dev);
-
- pci_dev = card->pci_dev;
- if (pci_dev == NULL)
- return -1;
-
- pci_read_config_dword(pci_dev, 0x44, &dwVal);
- pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
- udelay(500);
- pci_read_config_dword(pci_dev, 0x44, &dwVal);
- pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
- udelay(5000);
-
- /* TODO: recognize if we have a PM capable codec and only do this */
- /* if the codec is PM capable */
- wCount = 2000;
- while (wCount--) {
- wReg = ali_ac97_get(card, 0, AC97_POWER_CONTROL);
- if ((wReg & 0x000f) == 0x000f)
- return 0;
- udelay(5000);
- }
- /* This is non fatal if you have a non PM capable codec.. */
- return 0;
-}
-
-/* AC97 codec initialisation. */
-static int __devinit
-trident_ac97_init(struct trident_card *card)
-{
- int num_ac97 = 0;
- unsigned long ready_2nd = 0;
- struct ac97_codec *codec;
- int i = 0;
-
- /* initialize controller side of AC link, and find out if secondary codes
- really exist */
- switch (card->pci_id) {
- case PCI_DEVICE_ID_ALI_5451:
- if (ali_reset_5451(card)) {
- printk(KERN_ERR "trident_ac97_init: error "
- "resetting 5451.\n");
- return -1;
- }
- outl(0x80000001, TRID_REG(card, ALI_GLOBAL_CONTROL));
- outl(0x00000000, TRID_REG(card, T4D_AINTEN_A));
- outl(0xffffffff, TRID_REG(card, T4D_AINT_A));
- outl(0x00000000, TRID_REG(card, T4D_MUSICVOL_WAVEVOL));
- outb(0x10, TRID_REG(card, ALI_MPUR2));
- ready_2nd = inl(TRID_REG(card, ALI_SCTRL));
- ready_2nd &= 0x3fff;
- outl(ready_2nd | PCMOUT | 0x8000, TRID_REG(card, ALI_SCTRL));
- ready_2nd = inl(TRID_REG(card, ALI_SCTRL));
- ready_2nd &= SI_AC97_SECONDARY_READY;
- if (card->revision < ALI_5451_V02)
- ready_2nd = 0;
- break;
- case PCI_DEVICE_ID_SI_7018:
- /* disable AC97 GPIO interrupt */
- outl(0x00, TRID_REG(card, SI_AC97_GPIO));
- /* when power up the AC link is in cold reset mode so stop it */
- outl(PCMOUT | SURROUT | CENTEROUT | LFEOUT | SECONDARY_ID,
- TRID_REG(card, SI_SERIAL_INTF_CTRL));
- /* it take a long time to recover from a cold reset */
- /* (especially when you have more than one codec) */
- udelay(2000);
- ready_2nd = inl(TRID_REG(card, SI_SERIAL_INTF_CTRL));
- ready_2nd &= SI_AC97_SECONDARY_READY;
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
- /* playback on */
- outl(DX_AC97_PLAYBACK, TRID_REG(card, DX_ACR2_AC97_COM_STAT));
- break;
- case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
- /* enable AC97 Output Slot 3,4 (PCM Left/Right Playback) */
- outl(NX_AC97_PCM_OUTPUT, TRID_REG(card, NX_ACR0_AC97_COM_STAT));
- ready_2nd = inl(TRID_REG(card, NX_ACR0_AC97_COM_STAT));
- ready_2nd &= NX_AC97_SECONDARY_READY;
- break;
- case PCI_DEVICE_ID_INTERG_5050:
- /* disable AC97 GPIO interrupt */
- outl(0x00, TRID_REG(card, SI_AC97_GPIO));
- /* when power up, the AC link is in cold reset mode, so stop it */
- outl(PCMOUT | SURROUT | CENTEROUT | LFEOUT,
- TRID_REG(card, SI_SERIAL_INTF_CTRL));
- /* it take a long time to recover from a cold reset (especially */
- /* when you have more than one codec) */
- udelay(2000);
- ready_2nd = inl(TRID_REG(card, SI_SERIAL_INTF_CTRL));
- ready_2nd &= SI_AC97_SECONDARY_READY;
- break;
- }
-
- for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
- if ((codec = ac97_alloc_codec()) == NULL)
- return -ENOMEM;
-
- /* initialize some basic codec information, other fields */
- /* will be filled in ac97_probe_codec */
- codec->private_data = card;
- codec->id = num_ac97;
-
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- codec->codec_read = ali_ac97_read;
- codec->codec_write = ali_ac97_write;
- } else {
- codec->codec_read = trident_ac97_get;
- codec->codec_write = trident_ac97_set;
- }
-
- if (ac97_probe_codec(codec) == 0)
- break;
-
- codec->dev_mixer = register_sound_mixer(&trident_mixer_fops, -1);
- if (codec->dev_mixer < 0) {
- printk(KERN_ERR "trident: couldn't register mixer!\n");
- ac97_release_codec(codec);
- break;
- }
-
- card->ac97_codec[num_ac97] = codec;
-
- /* if there is no secondary codec at all, don't probe any more */
- if (!ready_2nd)
- break;
- }
-
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
- if (card->ac97_codec[num_ac97] == NULL)
- break;
- for (i = 0; i < 64; i++) {
- u16 reg = ali_ac97_get(card, num_ac97, i * 2);
- card->mixer_regs[i][num_ac97] = reg;
- }
- }
- }
- return num_ac97 + 1;
-}
-
-#ifdef SUPPORT_JOYSTICK
-/* Gameport functions for the cards ADC gameport */
-
-static unsigned char trident_game_read(struct gameport *gameport)
-{
- struct trident_card *card = gameport->port_data;
-
- return inb(TRID_REG(card, T4D_GAME_LEG));
-}
-
-static void trident_game_trigger(struct gameport *gameport)
-{
- struct trident_card *card = gameport->port_data;
-
- outb(0xff, TRID_REG(card, T4D_GAME_LEG));
-}
-
-static int trident_game_cooked_read(struct gameport *gameport,
- int *axes, int *buttons)
-{
- struct trident_card *card = gameport->port_data;
- int i;
-
- *buttons = (~inb(TRID_REG(card, T4D_GAME_LEG)) >> 4) & 0xf;
-
- for (i = 0; i < 4; i++) {
- axes[i] = inw(TRID_REG(card, T4D_GAME_AXD) + i * sizeof (u16));
- if (axes[i] == 0xffff)
- axes[i] = -1;
- }
-
- return 0;
-}
-
-static int trident_game_open(struct gameport *gameport, int mode)
-{
- struct trident_card *card = gameport->port_data;
-
- switch (mode) {
- case GAMEPORT_MODE_COOKED:
- outb(0x80, TRID_REG(card, T4D_GAME_CR));
- msleep(20);
- return 0;
- case GAMEPORT_MODE_RAW:
- outb(0x00, TRID_REG(card, T4D_GAME_CR));
- return 0;
- default:
- return -1;
- }
-
- return 0;
-}
-
-static int __devinit trident_register_gameport(struct trident_card *card)
-{
- struct gameport *gp;
-
- card->gameport = gp = gameport_allocate_port();
- if (!gp) {
- printk(KERN_ERR "trident: can not allocate memory for gameport\n");
- return -ENOMEM;
- }
-
- gameport_set_name(gp, "Trident 4DWave");
- gameport_set_phys(gp, "pci%s/gameport0", pci_name(card->pci_dev));
- gp->read = trident_game_read;
- gp->trigger = trident_game_trigger;
- gp->cooked_read = trident_game_cooked_read;
- gp->open = trident_game_open;
- gp->fuzz = 64;
- gp->port_data = card;
-
- gameport_register_port(gp);
-
- return 0;
-}
-
-static inline void trident_unregister_gameport(struct trident_card *card)
-{
- if (card->gameport)
- gameport_unregister_port(card->gameport);
-}
-
-#else
-static inline int trident_register_gameport(struct trident_card *card) { return -ENOSYS; }
-static inline void trident_unregister_gameport(struct trident_card *card) { }
-#endif /* SUPPORT_JOYSTICK */
-
-/* install the driver, we do not allocate hardware channel nor DMA buffer */
-/* now, they are defered until "ACCESS" time (in prog_dmabuf called by */
-/* open/read/write/ioctl/mmap) */
-static int __devinit
-trident_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id)
-{
- unsigned long iobase;
- struct trident_card *card;
- u8 bits;
- u8 revision;
- int i = 0;
- u16 temp;
- struct pci_dev *pci_dev_m1533 = NULL;
- int rc = -ENODEV;
- u64 dma_mask;
-
- if (pci_enable_device(pci_dev))
- goto out;
-
- if (pci_dev->device == PCI_DEVICE_ID_ALI_5451)
- dma_mask = ALI_DMA_MASK;
- else
- dma_mask = TRIDENT_DMA_MASK;
- if (pci_set_dma_mask(pci_dev, dma_mask)) {
- printk(KERN_ERR "trident: architecture does not support"
- " %s PCI busmaster DMA\n",
- pci_dev->device == PCI_DEVICE_ID_ALI_5451 ?
- "32-bit" : "30-bit");
- goto out;
- }
- pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &revision);
-
- if (pci_id->device == PCI_DEVICE_ID_INTERG_5050)
- iobase = pci_resource_start(pci_dev, 1);
- else
- iobase = pci_resource_start(pci_dev, 0);
-
- if (!request_region(iobase, 256, card_names[pci_id->driver_data])) {
- printk(KERN_ERR "trident: can't allocate I/O space at "
- "0x%4.4lx\n", iobase);
- goto out;
- }
-
- rc = -ENOMEM;
- if ((card = kzalloc(sizeof(*card), GFP_KERNEL)) == NULL) {
- printk(KERN_ERR "trident: out of memory\n");
- goto out_release_region;
- }
-
- init_timer(&card->timer);
- card->iobase = iobase;
- card->pci_dev = pci_dev_get(pci_dev);
- card->pci_id = pci_id->device;
- card->revision = revision;
- card->irq = pci_dev->irq;
- card->next = devs;
- card->magic = TRIDENT_CARD_MAGIC;
- card->banks[BANK_A].addresses = &bank_a_addrs;
- card->banks[BANK_A].bitmap = 0UL;
- card->banks[BANK_B].addresses = &bank_b_addrs;
- card->banks[BANK_B].bitmap = 0UL;
-
- mutex_init(&card->open_mutex);
- spin_lock_init(&card->lock);
- init_timer(&card->timer);
-
- devs = card;
-
- pci_set_master(pci_dev);
-
- printk(KERN_INFO "trident: %s found at IO 0x%04lx, IRQ %d\n",
- card_names[pci_id->driver_data], card->iobase, card->irq);
-
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- /* ALi channel Management */
- card->alloc_pcm_channel = ali_alloc_pcm_channel;
- card->alloc_rec_pcm_channel = ali_alloc_rec_pcm_channel;
- card->free_pcm_channel = ali_free_pcm_channel;
-
- card->address_interrupt = ali_address_interrupt;
-
- /* Added by Matt Wu 01-05-2001 for spdif in */
- card->multi_channel_use_count = 0;
- card->rec_channel_use_count = 0;
-
- /* ALi SPDIF OUT function */
- if (card->revision == ALI_5451_V02) {
- ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT);
- res = create_proc_entry("ALi5451", 0, NULL);
- if (res) {
- res->write_proc = ali_write_proc;
- res->data = card;
- }
- }
-
- /* Add H/W Volume Control By Matt Wu Jul. 06, 2001 */
- card->hwvolctl = 0;
- pci_dev_m1533 = pci_get_device(PCI_VENDOR_ID_AL,
- PCI_DEVICE_ID_AL_M1533,
- pci_dev_m1533);
- rc = -ENODEV;
- if (pci_dev_m1533 == NULL)
- goto out_proc_fs;
- pci_read_config_byte(pci_dev_m1533, 0x63, &bits);
- if (bits & (1 << 5))
- card->hwvolctl = 1;
- if (card->hwvolctl) {
- /* Clear m1533 pci cfg 78h bit 30 to zero, which makes
- GPIO11/12/13 work as ACGP_UP/DOWN/MUTE. */
- pci_read_config_byte(pci_dev_m1533, 0x7b, &bits);
- bits &= 0xbf; /*clear bit 6 */
- pci_write_config_byte(pci_dev_m1533, 0x7b, bits);
- }
- pci_dev_put(pci_dev_m1533);
-
- } else if (card->pci_id == PCI_DEVICE_ID_INTERG_5050) {
- card->alloc_pcm_channel = cyber_alloc_pcm_channel;
- card->alloc_rec_pcm_channel = cyber_alloc_pcm_channel;
- card->free_pcm_channel = cyber_free_pcm_channel;
- card->address_interrupt = cyber_address_interrupt;
- cyber_init_ritual(card);
- } else {
- card->alloc_pcm_channel = trident_alloc_pcm_channel;
- card->alloc_rec_pcm_channel = trident_alloc_pcm_channel;
- card->free_pcm_channel = trident_free_pcm_channel;
- card->address_interrupt = trident_address_interrupt;
- }
-
- /* claim our irq */
- rc = -ENODEV;
- if (request_irq(card->irq, &trident_interrupt, IRQF_SHARED,
- card_names[pci_id->driver_data], card)) {
- printk(KERN_ERR "trident: unable to allocate irq %d\n",
- card->irq);
- goto out_proc_fs;
- }
- /* register /dev/dsp */
- if ((card->dev_audio = register_sound_dsp(&trident_audio_fops, -1)) < 0) {
- printk(KERN_ERR "trident: couldn't register DSP device!\n");
- goto out_free_irq;
- }
- card->mixer_regs_ready = 0;
- /* initialize AC97 codec and register /dev/mixer */
- if (trident_ac97_init(card) <= 0) {
- /* unregister audio devices */
- for (i = 0; i < NR_AC97; i++) {
- if (card->ac97_codec[i] != NULL) {
- struct ac97_codec* codec = card->ac97_codec[i];
- unregister_sound_mixer(codec->dev_mixer);
- ac97_release_codec(codec);
- }
- }
- goto out_unregister_sound_dsp;
- }
- card->mixer_regs_ready = 1;
- outl(0x00, TRID_REG(card, T4D_MUSICVOL_WAVEVOL));
-
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- /* Add H/W Volume Control By Matt Wu Jul. 06, 2001 */
- if (card->hwvolctl) {
- /* Enable GPIO IRQ (MISCINT bit 18h) */
- temp = inw(TRID_REG(card, T4D_MISCINT + 2));
- temp |= 0x0004;
- outw(temp, TRID_REG(card, T4D_MISCINT + 2));
-
- /* Enable H/W Volume Control GLOVAL CONTROL bit 0 */
- temp = inw(TRID_REG(card, ALI_GLOBAL_CONTROL));
- temp |= 0x0001;
- outw(temp, TRID_REG(card, ALI_GLOBAL_CONTROL));
-
- }
- if (card->revision == ALI_5451_V02)
- ali_close_multi_channels();
- /* edited by HMSEO for GT sound */
-#if defined(CONFIG_ALPHA_NAUTILUS) || defined(CONFIG_ALPHA_GENERIC)
- {
- u16 ac97_data;
- extern struct hwrpb_struct *hwrpb;
-
- if ((hwrpb->sys_type) == 201) {
- printk(KERN_INFO "trident: Running on Alpha system "
- "type Nautilus\n");
- ac97_data = ali_ac97_get(card, 0, AC97_POWER_CONTROL);
- ali_ac97_set(card, 0, AC97_POWER_CONTROL,
- ac97_data | ALI_EAPD_POWER_DOWN);
- }
- }
-#endif /* CONFIG_ALPHA_NAUTILUS || CONFIG_ALPHA_GENERIC */
- /* edited by HMSEO for GT sound */
- }
- rc = 0;
- pci_set_drvdata(pci_dev, card);
-
- /* Enable Address Engine Interrupts */
- trident_enable_loop_interrupts(card);
-
- /* Register gameport */
- trident_register_gameport(card);
-
-out:
- return rc;
-
-out_unregister_sound_dsp:
- unregister_sound_dsp(card->dev_audio);
-out_free_irq:
- free_irq(card->irq, card);
-out_proc_fs:
- pci_dev_put(card->pci_dev);
- if (res) {
- remove_proc_entry("ALi5451", NULL);
- res = NULL;
- }
- kfree(card);
- devs = NULL;
-out_release_region:
- release_region(iobase, 256);
- return rc;
-}
-
-static void __devexit
-trident_remove(struct pci_dev *pci_dev)
-{
- int i;
- struct trident_card *card = pci_get_drvdata(pci_dev);
-
- /*
- * Kill running timers before unload. We can't have them
- * going off after rmmod!
- */
- if (card->hwvolctl)
- del_timer_sync(&card->timer);
-
- /* ALi S/PDIF and Power Management */
- if (card->pci_id == PCI_DEVICE_ID_ALI_5451) {
- ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT);
- ali_disable_special_channel(card, ALI_SPDIF_OUT_CHANNEL);
- ali_disable_spdif_in(card);
- remove_proc_entry("ALi5451", NULL);
- }
-
- /* Unregister gameport */
- trident_unregister_gameport(card);
-
- /* Kill interrupts, and SP/DIF */
- trident_disable_loop_interrupts(card);
-
- /* free hardware resources */
- free_irq(card->irq, card);
- release_region(card->iobase, 256);
-
- /* unregister audio devices */
- for (i = 0; i < NR_AC97; i++)
- if (card->ac97_codec[i] != NULL) {
- unregister_sound_mixer(card->ac97_codec[i]->dev_mixer);
- ac97_release_codec(card->ac97_codec[i]);
- }
- unregister_sound_dsp(card->dev_audio);
-
- pci_set_drvdata(pci_dev, NULL);
- pci_dev_put(card->pci_dev);
- kfree(card);
-}
-
-MODULE_AUTHOR("Alan Cox, Aaron Holtzman, Ollie Lho, Ching Ling Lee, Muli Ben-Yehuda");
-MODULE_DESCRIPTION("Trident 4DWave/SiS 7018/ALi 5451 and Tvia/IGST CyberPro5050 PCI "
- "Audio Driver");
-MODULE_LICENSE("GPL");
-
-#define TRIDENT_MODULE_NAME "trident"
-
-static struct pci_driver trident_pci_driver = {
- .name = TRIDENT_MODULE_NAME,
- .id_table = trident_pci_tbl,
- .probe = trident_probe,
- .remove = __devexit_p(trident_remove),
-#ifdef CONFIG_PM
- .suspend = trident_suspend,
- .resume = trident_resume
-#endif
-};
-
-static int __init
-trident_init_module(void)
-{
- printk(KERN_INFO "Trident 4DWave/SiS 7018/ALi 5451,Tvia CyberPro "
- "5050 PCI Audio, version " DRIVER_VERSION ", " __TIME__ " "
- __DATE__ "\n");
-
- return pci_register_driver(&trident_pci_driver);
-}
-
-static void __exit
-trident_cleanup_module(void)
-{
- pci_unregister_driver(&trident_pci_driver);
-}
-
-module_init(trident_init_module);
-module_exit(trident_cleanup_module);
+++ /dev/null
-#ifndef __TRID4DWAVE_H
-#define __TRID4DWAVE_H
-
-/*
- * audio@tridentmicro.com
- * Fri Feb 19 15:55:28 MST 1999
- * Definitions for Trident 4DWave DX/NX chips
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-/* PCI vendor and device ID */
-#ifndef PCI_VENDOR_ID_TRIDENT
-#define PCI_VENDOR_ID_TRIDENT 0x1023
-#endif
-
-#ifndef PCI_VENDOR_ID_SI
-#define PCI_VENDOR_ID_SI 0x1039
-#endif
-
-#ifndef PCI_VENDOR_ID_ALI
-#define PCI_VENDOR_ID_ALI 0x10b9
-#endif
-
-#ifndef PCI_DEVICE_ID_TRIDENT_4DWAVE_DX
-#define PCI_DEVICE_ID_TRIDENT_4DWAVE_DX 0x2000
-#endif
-
-#ifndef PCI_DEVICE_ID_TRIDENT_4DWAVE_NX
-#define PCI_DEVICE_ID_TRIDENT_4DWAVE_NX 0x2001
-#endif
-
-#ifndef PCI_DEVICE_ID_SI_7018
-#define PCI_DEVICE_ID_SI_7018 0x7018
-#endif
-
-#ifndef PCI_DEVICE_ID_ALI_5451
-#define PCI_DEVICE_ID_ALI_5451 0x5451
-#endif
-
-#ifndef PCI_DEVICE_ID_ALI_1533
-#define PCI_DEVICE_ID_ALI_1533 0x1533
-#endif
-
-#define CHANNEL_REGS 5
-#define CHANNEL_START 0xe0 // The first bytes of the contiguous register space.
-
-#define BANK_A 0
-#define BANK_B 1
-#define NR_BANKS 2
-
-#define TRIDENT_FMT_STEREO 0x01
-#define TRIDENT_FMT_16BIT 0x02
-#define TRIDENT_FMT_MASK 0x03
-
-#define DAC_RUNNING 0x01
-#define ADC_RUNNING 0x02
-
-/* Register Addresses */
-
-/* operational registers common to DX, NX, 7018 */
-enum trident_op_registers {
- T4D_GAME_CR = 0x30, T4D_GAME_LEG = 0x31,
- T4D_GAME_AXD = 0x34,
- T4D_REC_CH = 0x70,
- T4D_START_A = 0x80, T4D_STOP_A = 0x84,
- T4D_DLY_A = 0x88, T4D_SIGN_CSO_A = 0x8c,
- T4D_CSPF_A = 0x90, T4D_CEBC_A = 0x94,
- T4D_AINT_A = 0x98, T4D_EINT_A = 0x9c,
- T4D_LFO_GC_CIR = 0xa0, T4D_AINTEN_A = 0xa4,
- T4D_MUSICVOL_WAVEVOL = 0xa8, T4D_SBDELTA_DELTA_R = 0xac,
- T4D_MISCINT = 0xb0, T4D_START_B = 0xb4,
- T4D_STOP_B = 0xb8, T4D_CSPF_B = 0xbc,
- T4D_SBBL_SBCL = 0xc0, T4D_SBCTRL_SBE2R_SBDD = 0xc4,
- T4D_STIMER = 0xc8, T4D_LFO_B_I2S_DELTA = 0xcc,
- T4D_AINT_B = 0xd8, T4D_AINTEN_B = 0xdc,
- ALI_MPUR2 = 0x22, ALI_GPIO = 0x7c,
- ALI_EBUF1 = 0xf4,
- ALI_EBUF2 = 0xf8
-};
-
-enum ali_op_registers {
- ALI_SCTRL = 0x48,
- ALI_GLOBAL_CONTROL = 0xd4,
- ALI_STIMER = 0xc8,
- ALI_SPDIF_CS = 0x70,
- ALI_SPDIF_CTRL = 0x74
-};
-
-enum ali_registers_number {
- ALI_GLOBAL_REGS = 56,
- ALI_CHANNEL_REGS = 8,
- ALI_MIXER_REGS = 20
-};
-
-enum ali_sctrl_control_bit {
- ALI_SPDIF_OUT_ENABLE = 0x20
-};
-
-enum ali_global_control_bit {
- ALI_SPDIF_OUT_SEL_PCM = 0x00000400,
- ALI_SPDIF_IN_SUPPORT = 0x00000800,
- ALI_SPDIF_OUT_CH_ENABLE = 0x00008000,
- ALI_SPDIF_IN_CH_ENABLE = 0x00080000,
- ALI_PCM_IN_DISABLE = 0x7fffffff,
- ALI_PCM_IN_ENABLE = 0x80000000,
- ALI_SPDIF_IN_CH_DISABLE = 0xfff7ffff,
- ALI_SPDIF_OUT_CH_DISABLE = 0xffff7fff,
- ALI_SPDIF_OUT_SEL_SPDIF = 0xfffffbff
-
-};
-
-enum ali_spdif_control_bit {
- ALI_SPDIF_IN_FUNC_ENABLE = 0x02,
- ALI_SPDIF_IN_CH_STATUS = 0x40,
- ALI_SPDIF_OUT_CH_STATUS = 0xbf
-
-};
-
-enum ali_control_all {
- ALI_DISABLE_ALL_IRQ = 0,
- ALI_CHANNELS = 32,
- ALI_STOP_ALL_CHANNELS = 0xffffffff,
- ALI_MULTI_CHANNELS_START_STOP = 0x07800000
-};
-
-enum ali_EMOD_control_bit {
- ALI_EMOD_DEC = 0x00000000,
- ALI_EMOD_INC = 0x10000000,
- ALI_EMOD_Delay = 0x20000000,
- ALI_EMOD_Still = 0x30000000
-};
-
-enum ali_pcm_in_channel_num {
- ALI_NORMAL_CHANNEL = 0,
- ALI_SPDIF_OUT_CHANNEL = 15,
- ALI_SPDIF_IN_CHANNEL = 19,
- ALI_LEF_CHANNEL = 23,
- ALI_CENTER_CHANNEL = 24,
- ALI_SURR_RIGHT_CHANNEL = 25,
- ALI_SURR_LEFT_CHANNEL = 26,
- ALI_PCM_IN_CHANNEL = 31
-};
-
-enum ali_pcm_out_channel_num {
- ALI_PCM_OUT_CHANNEL_FIRST = 0,
- ALI_PCM_OUT_CHANNEL_LAST = 31
-};
-
-enum ali_ac97_power_control_bit {
- ALI_EAPD_POWER_DOWN = 0x8000
-};
-
-enum ali_update_ptr_flags {
- ALI_ADDRESS_INT_UPDATE = 0x01
-};
-
-enum ali_revision {
- ALI_5451_V02 = 0x02
-};
-
-enum ali_spdif_out_control {
- ALI_PCM_TO_SPDIF_OUT = 0,
- ALI_SPDIF_OUT_TO_SPDIF_OUT = 1,
- ALI_SPDIF_OUT_PCM = 0,
- ALI_SPDIF_OUT_NON_PCM = 2
-};
-
-/* S/PDIF Operational Registers for 4D-NX */
-enum nx_spdif_registers {
- NX_SPCTRL_SPCSO = 0x24, NX_SPLBA = 0x28,
- NX_SPESO = 0x2c, NX_SPCSTATUS = 0x64
-};
-
-/* OP registers to access each hardware channel */
-enum channel_registers {
- CH_DX_CSO_ALPHA_FMS = 0xe0, CH_DX_ESO_DELTA = 0xe8,
- CH_DX_FMC_RVOL_CVOL = 0xec,
- CH_NX_DELTA_CSO = 0xe0, CH_NX_DELTA_ESO = 0xe8,
- CH_NX_ALPHA_FMS_FMC_RVOL_CVOL = 0xec,
- CH_LBA = 0xe4,
- CH_GVSEL_PAN_VOL_CTRL_EC = 0xf0
-};
-
-/* registers to read/write/control AC97 codec */
-enum dx_ac97_registers {
- DX_ACR0_AC97_W = 0x40, DX_ACR1_AC97_R = 0x44,
- DX_ACR2_AC97_COM_STAT = 0x48
-};
-
-enum nx_ac97_registers {
- NX_ACR0_AC97_COM_STAT = 0x40, NX_ACR1_AC97_W = 0x44,
- NX_ACR2_AC97_R_PRIMARY = 0x48, NX_ACR3_AC97_R_SECONDARY = 0x4c
-};
-
-enum si_ac97_registers {
- SI_AC97_WRITE = 0x40, SI_AC97_READ = 0x44,
- SI_SERIAL_INTF_CTRL = 0x48, SI_AC97_GPIO = 0x4c
-};
-
-enum ali_ac97_registers {
- ALI_AC97_WRITE = 0x40, ALI_AC97_READ = 0x44
-};
-
-/* Bit mask for operational registers */
-#define AC97_REG_ADDR 0x000000ff
-
-enum ali_ac97_bits {
- ALI_AC97_BUSY_WRITE = 0x8000, ALI_AC97_BUSY_READ = 0x8000,
- ALI_AC97_WRITE_ACTION = 0x8000, ALI_AC97_READ_ACTION = 0x8000,
- ALI_AC97_AUDIO_BUSY = 0x4000, ALI_AC97_SECONDARY = 0x0080,
- ALI_AC97_READ_MIXER_REGISTER = 0xfeff,
- ALI_AC97_WRITE_MIXER_REGISTER = 0x0100
-};
-
-enum sis7018_ac97_bits {
- SI_AC97_BUSY_WRITE = 0x8000, SI_AC97_BUSY_READ = 0x8000,
- SI_AC97_AUDIO_BUSY = 0x4000, SI_AC97_MODEM_BUSY = 0x2000,
- SI_AC97_SECONDARY = 0x0080
-};
-
-enum trident_dx_ac97_bits {
- DX_AC97_BUSY_WRITE = 0x8000, DX_AC97_BUSY_READ = 0x8000,
- DX_AC97_READY = 0x0010, DX_AC97_RECORD = 0x0008,
- DX_AC97_PLAYBACK = 0x0002
-};
-
-enum trident_nx_ac97_bits {
- /* ACR1-3 */
- NX_AC97_BUSY_WRITE = 0x0800, NX_AC97_BUSY_READ = 0x0800,
- NX_AC97_BUSY_DATA = 0x0400, NX_AC97_WRITE_SECONDARY = 0x0100,
- /* ACR0 */
- NX_AC97_SECONDARY_READY = 0x0040, NX_AC97_SECONDARY_RECORD = 0x0020,
- NX_AC97_SURROUND_OUTPUT = 0x0010,
- NX_AC97_PRIMARY_READY = 0x0008, NX_AC97_PRIMARY_RECORD = 0x0004,
- NX_AC97_PCM_OUTPUT = 0x0002,
- NX_AC97_WARM_RESET = 0x0001
-};
-
-enum serial_intf_ctrl_bits {
- WARM_REST = 0x00000001, COLD_RESET = 0x00000002,
- I2S_CLOCK = 0x00000004, PCM_SEC_AC97= 0x00000008,
- AC97_DBL_RATE = 0x00000010, SPDIF_EN = 0x00000020,
- I2S_OUTPUT_EN = 0x00000040, I2S_INPUT_EN = 0x00000080,
- PCMIN = 0x00000100, LINE1IN = 0x00000200,
- MICIN = 0x00000400, LINE2IN = 0x00000800,
- HEAD_SET_IN = 0x00001000, GPIOIN = 0x00002000,
- /* 7018 spec says id = 01 but the demo board routed to 10
- SECONDARY_ID= 0x00004000, */
- SECONDARY_ID= 0x00004000,
- PCMOUT = 0x00010000, SURROUT = 0x00020000,
- CENTEROUT = 0x00040000, LFEOUT = 0x00080000,
- LINE1OUT = 0x00100000, LINE2OUT = 0x00200000,
- GPIOOUT = 0x00400000,
- SI_AC97_PRIMARY_READY = 0x01000000,
- SI_AC97_SECONDARY_READY = 0x02000000,
-};
-
-enum global_control_bits {
- CHANNLE_IDX = 0x0000003f, PB_RESET = 0x00000100,
- PAUSE_ENG = 0x00000200,
- OVERRUN_IE = 0x00000400, UNDERRUN_IE = 0x00000800,
- ENDLP_IE = 0x00001000, MIDLP_IE = 0x00002000,
- ETOG_IE = 0x00004000,
- EDROP_IE = 0x00008000, BANK_B_EN = 0x00010000
-};
-
-enum channel_control_bits {
- CHANNEL_LOOP = 0x00001000, CHANNEL_SIGNED = 0x00002000,
- CHANNEL_STEREO = 0x00004000, CHANNEL_16BITS = 0x00008000,
-};
-
-enum channel_attribute {
- /* playback/record select */
- CHANNEL_PB = 0x0000, CHANNEL_SPC_PB = 0x4000,
- CHANNEL_REC = 0x8000, CHANNEL_REC_PB = 0xc000,
- /* playback destination/record source select */
- MODEM_LINE1 = 0x0000, MODEM_LINE2 = 0x0400,
- PCM_LR = 0x0800, HSET = 0x0c00,
- I2S_LR = 0x1000, CENTER_LFE = 0x1400,
- SURR_LR = 0x1800, SPDIF_LR = 0x1c00,
- MIC = 0x1400,
- /* mist stuff */
- MONO_LEFT = 0x0000, MONO_RIGHT = 0x0100,
- MONO_MIX = 0x0200, SRC_ENABLE = 0x0080,
-};
-
-enum miscint_bits {
- PB_UNDERRUN_IRO = 0x00000001, REC_OVERRUN_IRQ = 0x00000002,
- SB_IRQ = 0x00000004, MPU401_IRQ = 0x00000008,
- OPL3_IRQ = 0x00000010, ADDRESS_IRQ = 0x00000020,
- ENVELOPE_IRQ = 0x00000040, ST_IRQ = 0x00000080,
- PB_UNDERRUN = 0x00000100, REC_OVERRUN = 0x00000200,
- MIXER_UNDERFLOW = 0x00000400, MIXER_OVERFLOW = 0x00000800,
- ST_TARGET_REACHED = 0x00008000, PB_24K_MODE = 0x00010000,
- ST_IRQ_EN = 0x00800000, ACGPIO_IRQ = 0x01000000
-};
-
-#define TRID_REG( trident, x ) ( (trident) -> iobase + (x) )
-
-#define CYBER_PORT_AUDIO 0x3CE
-#define CYBER_IDX_AUDIO_ENABLE 0x7B
-#define CYBER_BMSK_AUDIO_INT_ENABLE 0x09
-#define CYBER_BMSK_AUENZ 0x01
-#define CYBER_BMSK_AUENZ_ENABLE 0x00
-#define CYBER_IDX_IRQ_ENABLE 0x12
-
-#define VALIDATE_MAGIC(FOO,MAG) \
-({ \
- if (!(FOO) || (FOO)->magic != MAG) { \
- printk(invalid_magic,__func__); \
- return -ENXIO; \
- } \
-})
-
-#define VALIDATE_STATE(a) VALIDATE_MAGIC(a,TRIDENT_STATE_MAGIC)
-#define VALIDATE_CARD(a) VALIDATE_MAGIC(a,TRIDENT_CARD_MAGIC)
-
-static inline unsigned ld2(unsigned int x)
-{
- unsigned r = 0;
-
- if (x >= 0x10000) {
- x >>= 16;
- r += 16;
- }
- if (x >= 0x100) {
- x >>= 8;
- r += 8;
- }
- if (x >= 0x10) {
- x >>= 4;
- r += 4;
- }
- if (x >= 4) {
- x >>= 2;
- r += 2;
- }
- if (x >= 2)
- r++;
- return r;
-}
-
-#endif /* __TRID4DWAVE_H */
*/
static int create_vcpu_fd(struct kvm_vcpu *vcpu)
{
- int fd = anon_inode_getfd("kvm-vcpu", &kvm_vcpu_fops, vcpu);
+ int fd = anon_inode_getfd("kvm-vcpu", &kvm_vcpu_fops, vcpu, 0);
if (fd < 0)
kvm_put_kvm(vcpu->kvm);
return fd;
kvm = kvm_create_vm();
if (IS_ERR(kvm))
return PTR_ERR(kvm);
- fd = anon_inode_getfd("kvm-vm", &kvm_vm_fops, kvm);
+ fd = anon_inode_getfd("kvm-vm", &kvm_vm_fops, kvm, 0);
if (fd < 0)
kvm_put_kvm(kvm);
projects / linux-2.6-omap-h63xx.git / commitdiff