Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Patrick Mochel <mochel@digitalimplant.org>
Peter A Jonsson <pj@ludd.ltu.se>
+Peter Oruba <peter@oruba.de>
+Peter Oruba <peter.oruba@amd.com>
Praveen BP <praveenbp@ti.com>
Rajesh Shah <rajesh.shah@intel.com>
Ralf Baechle <ralf@linux-mips.org>
- directory with info about the I2C bus/protocol (2 wire, kHz speed).
i2o/
- directory with info about the Linux I2O subsystem.
-i386/
+x86/i386/
- directory with info about Linux on Intel 32 bit architecture.
ia64/
- directory with info about Linux on Intel 64 bit architecture.
- directory with documents regarding the 1-wire (w1) subsystem.
watchdog/
- how to auto-reboot Linux if it has "fallen and can't get up". ;-)
-x86_64/
+x86/x86_64/
- directory with info on Linux support for AMD x86-64 (Hammer) machines.
zorro.txt
- info on writing drivers for Zorro bus devices found on Amigas.
%.ps : %.xml
$(call cmd,db2ps)
-quiet_cmd_db2pdf = PDF $@
+quiet_cmd_db2pdf = PDF $@
cmd_db2pdf = $(subst TYPE,pdf, $($(PDF_METHOD)template))
%.pdf : %.xml
$(call cmd,db2pdf)
echo '<h2>Kernel Version: $(KERNELVERSION)</h2>' >> $(main_idx) && \
cat $(HTML) >> $(main_idx)
-quiet_cmd_db2html = HTML $@
+quiet_cmd_db2html = HTML $@
cmd_db2html = xmlto xhtml $(XMLTOFLAGS) -o $(patsubst %.html,%,$@) $< && \
echo '<a HREF="$(patsubst %.html,%,$(notdir $@))/index.html"> \
$(patsubst %.html,%,$(notdir $@))</a><p>' > $@
<surname>Cox</surname>
<affiliation>
<address>
- <email>alan@redhat.com</email>
+ <email>alan@lxorguk.ukuu.org.uk</email>
</address>
</affiliation>
</author>
<surname>Cox</surname>
<affiliation>
<address>
- <email>alan@redhat.com</email>
+ <email>alan@lxorguk.ukuu.org.uk</email>
</address>
</affiliation>
</author>
<surname>Cox</surname>
<affiliation>
<address>
- <email>alan@redhat.com</email>
+ <email>alan@lxorguk.ukuu.org.uk</email>
</address>
</affiliation>
</author>
<surname>Cox</surname>
<affiliation>
<address>
- <email>alan@redhat.com</email>
+ <email>alan@lxorguk.ukuu.org.uk</email>
</address>
</affiliation>
</author>
budget of your group, you're almost certainly not a kernel manager.
These suggestions may or may not apply to you.
-First off, I'd suggest buying "Seven Habits of Highly Successful
+First off, I'd suggest buying "Seven Habits of Highly Effective
People", and NOT read it. Burn it, it's a great symbolic gesture.
(*) This document does so not so much by answering the question, but by
+++ /dev/null
-Empeg, Ltd's Empeg MP3 Car Audio Player
-
-The initial design is to go in your car, but you can use it at home, on a
-boat... almost anywhere. The principle is to store CD-quality music using
-MPEG technology onto a hard disk in the unit, and use the power of the
-embedded computer to serve up the music you want.
-
-For more details, see:
-
- http://www.empeg.com
-
-
-
+++ /dev/null
-Infra-red driver documentation.
-
-Mike Crowe <mac@empeg.com>
-(C) Empeg Ltd 1999
-
-Not a lot here yet :-)
-
-The Kenwood KCA-R6A remote control generates a sequence like the following:
-
-Go low for approx 16T (Around 9000us)
-Go high for approx 8T (Around 4000us)
-Go low for less than 2T (Around 750us)
-
-For each of the 32 bits
- Go high for more than 2T (Around 1500us) == 1
- Go high for less than T (Around 400us) == 0
- Go low for less than 2T (Around 750us)
-
-Rather than repeat a signal when the button is held down certain buttons
-generate the following code to indicate repetition.
-
-Go low for approx 16T
-Go high for approx 4T
-Go low for less than 2T
-
-(By removing the <2T from the start of the sequence and placing at the end
- it can be considered a stop bit but I found it easier to deal with it at
- the start).
-
-The 32 bits are encoded as XxYy where x and y are the actual data values
-while X and Y are the logical inverses of the associated data values. Using
-LSB first yields sensible codes for the numbers.
-
-All codes are of the form b9xx
-
-The numeric keys generate the code 0x where x is the number pressed.
-
-Tuner 1c
-Tape 1d
-CD 1e
-CD-MD-CH 1f
-Track- 0a
-Track+ 0b
-Rewind 0c
-FF 0d
-DNPP 5e
-Play/Pause 0e
-Vol+ 14
-Vol- 15
+++ /dev/null
-#!/bin/sh
-mknod /dev/display c 244 0
-mknod /dev/ir c 242 0
-mknod /dev/usb0 c 243 0
-mknod /dev/audio c 245 4
-mknod /dev/dsp c 245 3
-mknod /dev/mixer c 245 0
-mknod /dev/empeg_state c 246 0
-mknod /dev/radio0 c 81 64
-ln -sf radio0 radio
-ln -sf usb0 usb
--- /dev/null
+cfag12864b-example
int (*set_page_dirty)(struct page *page);
int (*readpages)(struct file *filp, struct address_space *mapping,
struct list_head *pages, unsigned nr_pages);
- int (*prepare_write)(struct file *, struct page *, unsigned, unsigned);
- int (*commit_write)(struct file *, struct page *, unsigned, unsigned);
+ int (*write_begin)(struct file *, struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned flags,
+ struct page **pagep, void **fsdata);
+ int (*write_end)(struct file *, struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned copied,
+ struct page *page, void *fsdata);
sector_t (*bmap)(struct address_space *, sector_t);
int (*invalidatepage) (struct page *, unsigned long);
int (*releasepage) (struct page *, int);
writepages: no
set_page_dirty no no
readpages: no
-prepare_write: no yes yes
-commit_write: no yes yes
write_begin: no locks the page yes
write_end: no yes, unlocks yes
perform_write: no n/a yes
direct_IO: no
launder_page: no yes
- ->prepare_write(), ->commit_write(), ->sync_page() and ->readpage()
+ ->write_begin(), ->write_end(), ->sync_page() and ->readpage()
may be called from the request handler (/dev/loop).
->readpage() unlocks the page, either synchronously or via I/O
address_space has finer control of write sizes.
The read process essentially only requires 'readpage'. The write
-process is more complicated and uses prepare_write/commit_write or
+process is more complicated and uses write_begin/write_end or
set_page_dirty to write data into the address_space, and writepage,
sync_page, and writepages to writeback data to storage.
int (*set_page_dirty)(struct page *page);
int (*readpages)(struct file *filp, struct address_space *mapping,
struct list_head *pages, unsigned nr_pages);
- int (*prepare_write)(struct file *, struct page *, unsigned, unsigned);
- int (*commit_write)(struct file *, struct page *, unsigned, unsigned);
int (*write_begin)(struct file *, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata);
readpages is only used for read-ahead, so read errors are
ignored. If anything goes wrong, feel free to give up.
- prepare_write: called by the generic write path in VM to set up a write
- request for a page. This indicates to the address space that
- the given range of bytes is about to be written. The
- address_space should check that the write will be able to
- complete, by allocating space if necessary and doing any other
- internal housekeeping. If the write will update parts of
- any basic-blocks on storage, then those blocks should be
- pre-read (if they haven't been read already) so that the
- updated blocks can be written out properly.
- The page will be locked.
-
- Note: the page _must not_ be marked uptodate in this function
- (or anywhere else) unless it actually is uptodate right now. As
- soon as a page is marked uptodate, it is possible for a concurrent
- read(2) to copy it to userspace.
-
- commit_write: If prepare_write succeeds, new data will be copied
- into the page and then commit_write will be called. It will
- typically update the size of the file (if appropriate) and
- mark the inode as dirty, and do any other related housekeeping
- operations. It should avoid returning an error if possible -
- errors should have been handled by prepare_write.
-
- write_begin: This is intended as a replacement for prepare_write. The
- key differences being that:
- - it returns a locked page (in *pagep) rather than being
- given a pre locked page;
- - it must be able to cope with short writes (where the
- length passed to write_begin is greater than the number
- of bytes copied into the page).
-
+ write_begin:
Called by the generic buffered write code to ask the filesystem to
prepare to write len bytes at the given offset in the file. The
address_space should check that the write will be able to complete,
The filesystem must return the locked pagecache page for the specified
offset, in *pagep, for the caller to write into.
+ It must be able to cope with short writes (where the length passed to
+ write_begin is greater than the number of bytes copied into the page).
+
flags is a field for AOP_FLAG_xxx flags, described in
include/linux/fs.h.
CPU#: The CPU which the process was running on.
irqs-off: 'd' interrupts are disabled. '.' otherwise.
+ Note: If the architecture does not support a way to
+ read the irq flags variable, an 'X' will always
+ be printed here.
need-resched: 'N' task need_resched is set, '.' otherwise.
chipsets as well: 635, and 635T. If anyone owns a board with those chips
AND is willing to risk crashing & burning an otherwise well-behaved kernel
in the name of progress... please contact me at <mhoffman@lightlink.com> or
-via the project's mailing list: <i2c@lm-sensors.org>. Please send bug
+via the linux-i2c mailing list: <linux-i2c@vger.kernel.org>. Please send bug
reports and/or success stories as well.
--- /dev/null
+aliasing-test
Thomas Bogendörfer (tsbogend@bigbug.franken.de)
Tester, lots of bugfixes and hints.
-Alan Cox (alan@redhat.com)
+Alan Cox (alan@lxorguk.ukuu.org.uk)
For help getting into standard-kernel.
Henner Eisen (eis@baty.hanse.de)
fork. So if you have any comments or updates for this file, please try
to update the original English file first.
-Last Updated: 2008/08/21
+Last Updated: 2008/10/24
==================================
これは、
-linux-2.6.27/Documentation/HOWTO
+linux-2.6.28/Documentation/HOWTO
の和訳です。
翻訳団体： JF プロジェクト < http://www.linux.or.jp/JF/ >
-翻訳日： 2008/8/5
+翻訳日： 2008/10/24
翻訳者： Tsugikazu Shibata <tshibata at ab dot jp dot nec dot com>
校正者： 松倉さん <nbh--mats at nifty dot com>
小林 雅典さん (Masanori Kobayasi) <zap03216 at nifty dot ne dot jp>
新しいドキュメントファイルも追加することを勧めます。
カーネルの変更が、カーネルがユーザ空間に公開しているインターフェイスの
変更を引き起こす場合、その変更を説明するマニュアルページのパッチや情報
-ã\82\92ã\83\9eã\83\8bã\83¥ã\82¢ã\83«ã\83\9aã\83¼ã\82¸ã\81®ã\83¡ã\83³ã\83\86ã\83\8a mtk.manpages@gmail.com ã\81«é\80\81ã\82\8bã\81\93ã\81¨ã\82\92å\8b§ã\82\81ã\81¾
-す。
+ã\82\92ã\83\9eã\83\8bã\83¥ã\82¢ã\83«ã\83\9aã\83¼ã\82¸ã\81®ã\83¡ã\83³ã\83\86ã\83\8a mtk.manpages@gmail.com ã\81«é\80\81ã\82\8aã\80\81CC ã\82\92
+linux-api@ver.kernel.org に送ることを勧めます。
以下はカーネルソースツリーに含まれている読んでおくべきファイルの一覧で
す-
この他にパッチを作る方法についてのよくできた記述は-
"The Perfect Patch"
- http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt
+ http://userweb.kernel.org/~akpm/stuff/tpp.txt
"Linux kernel patch submission format"
http://linux.yyz.us/patch-format.html
これについて全てがどのようにあるべきかについての詳細は、以下のドキュメ
ントの ChangeLog セクションを見てください-
"The Perfect Patch"
- http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt
+ http://userweb.kernel.org/~akpm/stuff/tpp.txt
これらのどれもが、時にはとても困難です。これらの慣例を完璧に実施するに
は数年かかるかもしれません。これは継続的な改善のプロセスであり、そのた
X86-32 X86-32, aka i386 architecture is enabled.
X86-64 X86-64 architecture is enabled.
More X86-64 boot options can be found in
- Documentation/x86_64/boot-options.txt .
+ Documentation/x86/x86_64/boot-options.txt .
X86 Either 32bit or 64bit x86 (same as X86-32+X86-64)
In addition, the following text indicates that the option:
Parameters denoted with BOOT are actually interpreted by the boot
loader, and have no meaning to the kernel directly.
Do not modify the syntax of boot loader parameters without extreme
-need or coordination with <Documentation/i386/boot.txt>.
+need or coordination with <Documentation/x86/i386/boot.txt>.
There are also arch-specific kernel-parameters not documented here.
-See for example <Documentation/x86_64/boot-options.txt>.
+See for example <Documentation/x86/x86_64/boot-options.txt>.
Note that ALL kernel parameters listed below are CASE SENSITIVE, and that
a trailing = on the name of any parameter states that that parameter will
mce [X86-32] Machine Check Exception
- mce=option [X86-64] See Documentation/x86_64/boot-options.txt
+ mce=option [X86-64] See Documentation/x86/x86_64/boot-options.txt
md= [HW] RAID subsystems devices and level
See Documentation/md.txt.
See Documentation/paride.txt.
pirq= [SMP,APIC] Manual mp-table setup
- See Documentation/i386/IO-APIC.txt.
+ See Documentation/x86/i386/IO-APIC.txt.
plip= [PPT,NET] Parallel port network link
Format: { parport<nr> | timid | 0 }
See Documentation/fb/modedb.txt.
vga= [BOOT,X86-32] Select a particular video mode
- See Documentation/i386/boot.txt and
+ See Documentation/x86/i386/boot.txt and
Documentation/svga.txt.
Use vga=ask for menu.
This is actually a boot loader parameter; the value is
# This creates the demonstration utility "lguest" which runs a Linux guest.
-CFLAGS:=-Wall -Wmissing-declarations -Wmissing-prototypes -O3 -I../../include
+CFLAGS:=-Wall -Wmissing-declarations -Wmissing-prototypes -O3 -I../../include -I../../arch/x86/include
LDLIBS:=-lz
all: lguest
#include "linux/virtio_console.h"
#include "linux/virtio_rng.h"
#include "linux/virtio_ring.h"
-#include "asm-x86/bootparam.h"
+#include "asm/bootparam.h"
/*L:110 We can ignore the 39 include files we need for this program, but I do
* want to draw attention to the use of kernel-style types.
*
void *p = from_guest_phys(0x100000);
/* Go back to the start of the file and read the header. It should be
- * a Linux boot header (see Documentation/i386/boot.txt) */
+ * a Linux boot header (see Documentation/x86/i386/boot.txt) */
lseek(fd, 0, SEEK_SET);
read(fd, &boot, sizeof(boot));
Contributors:
Marcelo Tosatti <marcelo@conectiva.com.br>
-Alan Cox <alan@redhat.com>
+Alan Cox <alan@lxorguk.ukuu.org.uk>
Jeff Garzik <jgarzik@pobox.com>
Vojtech Pavlik <vojtech@suse.cz>
- CPU Scheduler implementation hints for architecture specific code.
sched-coding.txt
- reference for various scheduler-related methods in the O(1) scheduler.
-sched-design.txt
- - goals, design and implementation of the Linux O(1) scheduler.
sched-design-CFS.txt
- goals, design and implementation of the Complete Fair Scheduler.
sched-domains.txt
way the previous scheduler had, and has no heuristics whatsoever. There is
only one central tunable (you have to switch on CONFIG_SCHED_DEBUG):
- /proc/sys/kernel/sched_granularity_ns
+ /proc/sys/kernel/sched_min_granularity_ns
which can be used to tune the scheduler from "desktop" (i.e., low latencies) to
"server" (i.e., good batching) workloads. It defaults to a setting suitable
People
-------------------------
-Alan Cox <alan@redhat.com>
+Alan Cox <alan@lxorguk.ukuu.org.uk>
Christoph Hellwig <hch@infradead.org> (updates for new-style PCI probing and SCSI host registration,
small cleanups/fixes)
Matt Domsch <matt_domsch@dell.com> (revision ioctl, adapter messages)
--- /dev/null
+spidev_fdx
+spidev_test
marked CONFIG_BROKEN), an oops, a hang, data corruption, a real
security issue, or some "oh, that's not good" issue. In short, something
critical.
+ - New device IDs and quirks are also accepted.
- No "theoretical race condition" issues, unless an explanation of how the
race can be exploited is also provided.
- It cannot contain any "trivial" fixes in it (spelling changes,
Non-zero if the kernel has been tainted. Numeric values, which
can be ORed together:
- 1 - A module with a non-GPL license has been loaded, this
- includes modules with no license.
- Set by modutils >= 2.4.9 and module-init-tools.
- 2 - A module was force loaded by insmod -f.
- Set by modutils >= 2.4.9 and module-init-tools.
- 4 - Unsafe SMP processors: SMP with CPUs not designed for SMP.
- 64 - A module from drivers/staging was loaded.
+ 1 - A module with a non-GPL license has been loaded, this
+ includes modules with no license.
+ Set by modutils >= 2.4.9 and module-init-tools.
+ 2 - A module was force loaded by insmod -f.
+ Set by modutils >= 2.4.9 and module-init-tools.
+ 4 - Unsafe SMP processors: SMP with CPUs not designed for SMP.
+ 8 - A module was forcibly unloaded from the system by rmmod -f.
+ 16 - A hardware machine check error occurred on the system.
+ 32 - A bad page was discovered on the system.
+ 64 - The user has asked that the system be marked "tainted". This
+ could be because they are running software that directly modifies
+ the hardware, or for other reasons.
+ 128 - The system has died.
+ 256 - The ACPI DSDT has been overridden with one supplied by the user
+ instead of using the one provided by the hardware.
+ 512 - A kernel warning has occurred.
+1024 - A module from drivers/staging was loaded.
Michael Chu <mmchu@pobox.com>
AverMedia fix and more flexible card recognition
-Alan Cox <alan@redhat.com>
+Alan Cox <alan@lxorguk.ukuu.org.uk>
Video4Linux interface and 2.1.x kernel adaptation
Chris Kleitsch
--- /dev/null
+watchdog-simple
+watchdog-test
nolapic Don't use the local APIC (alias for i386 compatibility)
- pirq=... See Documentation/i386/IO-APIC.txt
+ pirq=... See Documentation/x86/i386/IO-APIC.txt
noapictimer Don't set up the APIC timer
SMP
additional_cpus=NUM Allow NUM more CPUs for hotplug
- (defaults are specified by the BIOS, see Documentation/x86_64/cpu-hotplug-spec)
+ (defaults are specified by the BIOS, see Documentation/x86/x86_64/cpu-hotplug-spec)
NUMA
For more information on the features of cpusets, see Documentation/cpusets.txt.
There are a number of different configurations you can use for your needs. For
more information on the numa=fake command line option and its various ways of
-configuring fake nodes, see Documentation/x86_64/boot-options.txt.
+configuring fake nodes, see Documentation/x86/x86_64/boot-options.txt.
For the purposes of this introduction, we'll assume a very primitive NUMA
emulation setup of "numa=fake=4*512,". This will split our system memory into
ALI1563 I2C DRIVER
P: Rudolf Marek
M: r.marek@assembler.cz
-L: i2c@lm-sensors.org
+L: linux-i2c@vger.kernel.org
S: Maintained
ALPHA PORT
M: philipp.zabel@gmail.com
S: Maintained
+ARM/NEC MOBILEPRO 900/c MACHINE SUPPORT
+P: Michael Petchkovsky
+M: mkpetch@internode.on.net
+S: Maintained
+
ARM/TOSA MACHINE SUPPORT
P: Dmitry Baryshkov
M: dbaryshkov@gmail.com
P: Jochen Friedrich
M: jochen@scram.de
L: linuxppc-dev@ozlabs.org
-L: i2c@lm-sensors.org
+L: linux-i2c@vger.kernel.org
S: Maintained
FREESCALE SOC FS_ENET DRIVER
I2C/SMBUS STUB DRIVER
P: Mark M. Hoffman
M: mhoffman@lightlink.com
-L: i2c@lm-sensors.org
+L: linux-i2c@vger.kernel.org
S: Maintained
I2C SUBSYSTEM
M: khali@linux-fr.org
P: Ben Dooks (embedded platforms)
M: ben-linux@fluff.org
-L: i2c@lm-sensors.org
+L: linux-i2c@vger.kernel.org
T: quilt http://khali.linux-fr.org/devel/linux-2.6/jdelvare-i2c/
S: Maintained
I2C-TINY-USB DRIVER
P: Till Harbaum
M: till@harbaum.org
-L: i2c@lm-sensors.org
+L: linux-i2c@vger.kernel.org
T: http://www.harbaum.org/till/i2c_tiny_usb
S: Maintained
L: linux-scsi@vger.kernel.org
S: Maintained
+LTP (Linux Test Project)
+P: Subrata Modak
+M: subrata@linux.vnet.ibm.com
+P: Mike Frysinger
+M: vapier@gentoo.org
+L: ltp-list@lists.sourceforge.net (subscribers-only)
+W: http://ltp.sourceforge.net/
+T: git kernel.org/pub/scm/linux/kernel/git/galak/ltp.git
+S: Maintained
+
M32R ARCHITECTURE
P: Hirokazu Takata
M: takata@linux-m32r.org
OPENCORES I2C BUS DRIVER
P: Peter Korsgaard
M: jacmet@sunsite.dk
-L: i2c@lm-sensors.org
+L: linux-i2c@vger.kernel.org
S: Maintained
OPROFILE
PA SEMI SMBUS DRIVER
P: Olof Johansson
M: olof@lixom.net
-L: i2c@lm-sensors.org
+L: linux-i2c@vger.kernel.org
S: Maintained
PANASONIC LAPTOP ACPI EXTRAS DRIVER
PNXxxxx I2C DRIVER
P: Vitaly Wool
M: vitalywool@gmail.com
-L: i2c@lm-sensors.org
+L: linux-i2c@vger.kernel.org
S: Maintained
PPP PROTOCOL DRIVERS AND COMPRESSORS
SIS 96X I2C/SMBUS DRIVER
P: Mark M. Hoffman
M: mhoffman@lightlink.com
-L: i2c@lm-sensors.org
+L: linux-i2c@vger.kernel.org
S: Maintained
SIS FRAMEBUFFER DRIVER
VIAPRO SMBUS DRIVER
P: Jean Delvare
M: khali@linux-fr.org
-L: i2c@lm-sensors.org
+L: linux-i2c@vger.kernel.org
S: Maintained
VIA UNICHROME(PRO)/CHROME9 FRAMEBUFFER DRIVER
KBUILD_AFLAGS += -gdwarf-2
endif
-ifdef CONFIG_FTRACE
+ifdef CONFIG_FUNCTION_TRACER
KBUILD_CFLAGS += -pg
endif
# The asm symlink changes when $(ARCH) changes.
# Detect this and ask user to run make mrproper
+# If asm is a stale symlink (point to dir that does not exist) remove it
define check-symlink
set -e; \
if [ -L include/asm ]; then \
echo " set ARCH or save .config and run 'make mrproper' to fix it"; \
exit 1; \
fi; \
+ test -e $$asmlink || rm include/asm; \
+ elif [ -d include/asm ]; then \
+ echo "ERROR: $@ is a directory but a symlink was expected";\
+ exit 1; \
fi
endef
define find-sources
( for arch in $(ALLSOURCE_ARCHS) ; do \
find $(__srctree)arch/$${arch} $(RCS_FIND_IGNORE) \
- -name $1 -print; \
+ -wholename $(__srctree)arch/$${arch}/include/asm -type d -prune \
+ -o -name $1 -print; \
done ; \
find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \
-name $1 -print; \
select HAVE_ARCH_KGDB
select HAVE_KPROBES if (!XIP_KERNEL)
select HAVE_KRETPROBES if (HAVE_KPROBES)
- select HAVE_FTRACE if (!XIP_KERNEL)
- select HAVE_DYNAMIC_FTRACE if (HAVE_FTRACE)
+ select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
select HAVE_GENERIC_DMA_COHERENT
help
The ARM series is a line of low-power-consumption RISC chip designs
targets := vmlinux vmlinux.lds piggy.gz piggy.o font.o font.c \
head.o misc.o $(OBJS)
-ifeq ($(CONFIG_FTRACE),y)
+ifeq ($(CONFIG_FUNCTION_TRACER),y)
ORIG_CFLAGS := $(KBUILD_CFLAGS)
KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
endif
/*
* Prototypes
*/
+#ifdef CONFIG_PM
static int sharpsl_off_charge_battery(void);
-static int sharpsl_check_battery_temp(void);
static int sharpsl_check_battery_voltage(void);
-static int sharpsl_ac_check(void);
static int sharpsl_fatal_check(void);
+#endif
+static int sharpsl_check_battery_temp(void);
+static int sharpsl_ac_check(void);
static int sharpsl_average_value(int ad);
static void sharpsl_average_clear(void);
static void sharpsl_charge_toggle(struct work_struct *private_);
return 0;
}
+#ifdef CONFIG_PM
static int sharpsl_check_battery_voltage(void)
{
int val, i, buff[5];
return 0;
}
+#endif
static int sharpsl_ac_check(void)
{
return 0;
}
-#endif
-
/*
* Check for fatal battery errors
}
}
}
-
+#else
+#define sharpsl_pm_suspend NULL
+#define sharpsl_pm_resume NULL
+#endif
static ssize_t battery_percentage_show(struct device *dev, struct device_attribute *attr, char *buf)
{
info->battery_life = sharpsl_pm.battstat.mainbat_percent;
}
+#ifdef CONFIG_PM
static struct platform_suspend_ops sharpsl_pm_ops = {
.enter = corgi_pxa_pm_enter,
.valid = suspend_valid_only_mem,
};
+#endif
static int __init sharpsl_pm_probe(struct platform_device *pdev)
{
apm_get_power_status = sharpsl_apm_get_power_status;
+#ifdef CONFIG_PM
suspend_set_ops(&sharpsl_pm_ops);
+#endif
mod_timer(&sharpsl_pm.ac_timer, jiffies + msecs_to_jiffies(250));
#ifndef _ASM_ARM_FTRACE
#define _ASM_ARM_FTRACE
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
#define MCOUNT_ADDR ((long)(mcount))
#define MCOUNT_INSN_SIZE 4 /* sizeof mcount call */
EXPORT_SYMBOL(copy_page);
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
EXPORT_SYMBOL(mcount);
#endif
#undef CALL
#define CALL(x) .long x
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
#ifdef CONFIG_DYNAMIC_FTRACE
ENTRY(mcount)
stmdb sp!, {r0-r3, lr}
ftrace_stub:
mov pc, lr
-#endif /* CONFIG_FTRACE */
+#endif /* CONFIG_FUNCTION_TRACER */
/*=============================================================================
* SWI handler
return ret;
}
-int ftrace_mcount_set(unsigned long *data)
-{
- unsigned long pc, old;
- unsigned long *addr = data;
- unsigned char *new;
-
- pc = (unsigned long)&mcount_call;
- memcpy(&old, &mcount_call, MCOUNT_INSN_SIZE);
- new = ftrace_call_replace(pc, *addr);
- *addr = ftrace_modify_code(pc, (unsigned char *)&old, new);
- return 0;
-}
-
/* run from kstop_machine */
int __init ftrace_dyn_arch_init(void *data)
{
static struct i2c_board_info __initdata afeb9260_i2c_devices[] = {
{
I2C_BOARD_INFO("fm3130", 0x68),
+ }, {
I2C_BOARD_INFO("24c64", 0x50),
},
};
#ifndef __ASM_ARCH_AT91RM9200_GPIO_H
#define __ASM_ARCH_AT91RM9200_GPIO_H
+#include <linux/kernel.h>
#include <asm/irq.h>
#define PIN_BASE NR_AIC_IRQS
static inline void gpio_free(unsigned gpio)
{
+ might_sleep();
}
extern int gpio_direction_input(unsigned gpio);
#include <linux/serial_core.h>
#include <linux/device.h>
#include <linux/mm.h>
+#include <linux/dma-mapping.h>
#include <linux/time.h>
#include <linux/timex.h>
#include <linux/delay.h>
},
};
+
static struct platform_device ep93xx_ohci_device = {
.name = "ep93xx-ohci",
.id = -1,
.dev = {
- .dma_mask = (void *)0xffffffff,
- .coherent_dma_mask = 0xffffffff,
+ .dma_mask = &ep93xx_ohci_device.dev.coherent_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
},
.num_resources = ARRAY_SIZE(ep93xx_ohci_resources),
.resource = ep93xx_ohci_resources,
#ifndef _IMX_GPIO_H
+#include <linux/kernel.h>
#include <mach/imx-regs.h>
#define IMX_GPIO_ALLOC_MODE_NORMAL 0
static inline void gpio_free(unsigned gpio)
{
+ might_sleep();
+
imx_gpio_free(gpio);
}
#ifndef __ASM_ARCH_IXP4XX_GPIO_H
#define __ASM_ARCH_IXP4XX_GPIO_H
+#include <linux/kernel.h>
#include <mach/hardware.h>
static inline int gpio_request(unsigned gpio, const char *label)
static inline void gpio_free(unsigned gpio)
{
+ might_sleep();
+
return;
}
#ifndef __ASM_ARCH_GPIO_H_
#define __ASM_ARCH_GPIO_H_
+#include <linux/kernel.h>
+
#define KS8695_GPIO_0 0
#define KS8695_GPIO_1 1
#define KS8695_GPIO_2 2
static inline void gpio_free(unsigned int pin)
{
+ might_sleep();
}
#endif
#include <mach/imx-uart.h>
#include <mach/iomux-mx3.h>
+#include "devices.h"
+
/*!
* @file mx31ads.c
*
.virtual = AIPS1_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(AIPS1_BASE_ADDR),
.length = AIPS1_SIZE,
- .type = MT_DEVICE
+ .type = MT_DEVICE_NONSHARED
}, {
.virtual = AIPS2_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(AIPS2_BASE_ADDR),
.length = AIPS2_SIZE,
- .type = MT_DEVICE
+ .type = MT_DEVICE_NONSHARED
},
};
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*/
+#include <linux/kernel.h>
#include <linux/compiler.h>
#include <linux/init.h>
#include <linux/spinlock.h>
void gpio_free(unsigned gpio)
{
+ might_sleep();
clear_bit(gpio, gpiores);
return;
}
void gpio_free(unsigned pin)
{
+ might_sleep();
+
if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) {
pr_debug("%s: invalid GPIO %d\n", __func__, pin);
return;
.read_devdata = corgipm_read_devdata,
.charger_wakeup = corgi_charger_wakeup,
.should_wakeup = corgi_should_wakeup,
-#ifdef CONFIG_BACKLIGHT_CORGI
+#if defined(CONFIG_LCD_CORGI)
+ .backlight_limit = corgi_lcd_limit_intensity,
+#elif defined(CONFIG_BACKLIGHT_CORGI)
.backlight_limit = corgibl_limit_intensity,
#endif
.charge_on_volt = SHARPSL_CHARGE_ON_VOLT,
* SharpSL Backlight
*/
extern void corgibl_limit_intensity(int limit);
+extern void corgi_lcd_limit_intensity(int limit);
/*
if (err)
goto err_free_2;
+ err = gpio_direction_output(SPITZ_GPIO_ADS7846_CS, 1);
+ if (err)
+ goto err_free_3;
+ err = gpio_direction_output(SPITZ_GPIO_LCDCON_CS, 1);
+ if (err)
+ goto err_free_3;
+ err = gpio_direction_output(SPITZ_GPIO_MAX1111_CS, 1);
+ if (err)
+ goto err_free_3;
+
if (machine_is_akita()) {
spitz_lcdcon_info.gpio_backlight_cont = AKITA_GPIO_BACKLIGHT_CONT;
spitz_lcdcon_info.gpio_backlight_on = AKITA_GPIO_BACKLIGHT_ON;
spi_register_board_info(ARRAY_AND_SIZE(spitz_spi_devices));
return;
+err_free_3:
+ gpio_free(SPITZ_GPIO_MAX1111_CS);
err_free_2:
gpio_free(SPITZ_GPIO_LCDCON_CS);
err_free_1:
.read_devdata = spitzpm_read_devdata,
.charger_wakeup = spitz_charger_wakeup,
.should_wakeup = spitz_should_wakeup,
-#ifdef CONFIG_BACKLIGHT_CORGI
+#if defined(CONFIG_LCD_CORGI)
+ .backlight_limit = corgi_lcd_limit_intensity,
+#elif defined(CONFIG_BACKLIGHT_CORGI)
.backlight_limit = corgibl_limit_intensity,
#endif
.charge_on_volt = SHARPSL_CHARGE_ON_VOLT,
cpu_xsc3_mt_table:
.long 0x00 @ L_PTE_MT_UNCACHED
.long PTE_EXT_TEX(1) @ L_PTE_MT_BUFFERABLE
- .long PTE_CACHEABLE @ L_PTE_MT_WRITETHROUGH
+ .long PTE_EXT_TEX(5) | PTE_CACHEABLE @ L_PTE_MT_WRITETHROUGH
.long PTE_CACHEABLE | PTE_BUFFERABLE @ L_PTE_MT_WRITEBACK
.long PTE_EXT_TEX(1) | PTE_BUFFERABLE @ L_PTE_MT_DEV_SHARED
.long 0x00 @ unused
struct mxc_gpio_port *port =
container_of(chip, struct mxc_gpio_port, chip);
- return (__raw_readl(port->base + GPIO_DR) >> offset) & 1;
+ return (__raw_readl(port->base + GPIO_PSR) >> offset) & 1;
}
static int mxc_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
/* Allow IO space to be anywhere in the memory */
#define IO_SPACE_LIMIT 0xffffffff
+#ifdef CONFIG_ARCH_MX3
+#define __arch_ioremap __mx3_ioremap
+#define __arch_iounmap __iounmap
+
+static inline void __iomem *
+__mx3_ioremap(unsigned long phys_addr, size_t size, unsigned int mtype)
+{
+ if (mtype == MT_DEVICE) {
+ /* Access all peripherals below 0x80000000 as nonshared device
+ * but leave l2cc alone.
+ */
+ if ((phys_addr < 0x80000000) && ((phys_addr < L2CC_BASE_ADDR) ||
+ (phys_addr >= L2CC_BASE_ADDR + L2CC_SIZE)))
+ mtype = MT_DEVICE_NONSHARED;
+ }
+
+ return __arm_ioremap(phys_addr, size, mtype);
+}
+#endif
+
/* io address mapping macro */
#define __io(a) ((void __iomem *)(a))
extern int iommu_detected;
extern void iommu_dma_init(void);
extern void machvec_init(const char *name);
-extern int forbid_dac;
#endif
long itc_offset;
unsigned long itc_check;
unsigned long timer_check;
- unsigned long timer_pending;
+ unsigned int timer_pending;
+ unsigned int timer_fired;
unsigned long vrr[8];
unsigned long ibr[8];
struct list_head assigned_dev_head;
struct dmar_domain *intel_iommu_domain;
struct hlist_head irq_ack_notifier_list;
+
+ unsigned long irq_sources_bitmap;
+ unsigned long irq_states[KVM_IOAPIC_NUM_PINS];
};
union cpuid3_t {
{
struct dma_mapping_ops *ops = get_dma_ops(dev);
-#ifdef CONFIG_PCI
- if (mask > 0xffffffff && forbid_dac > 0) {
- dev_info(dev, "Disallowing DAC for device\n");
- return 0;
- }
-#endif
-
if (ops->dma_supported_op)
return ops->dma_supported_op(dev, mask);
echo ""; \
echo "#endif" ) > $@
endef
+
# We use internal rules to avoid the "is up to date" message from make
-arch/ia64/kvm/asm-offsets.s: arch/ia64/kvm/asm-offsets.c
+arch/ia64/kvm/asm-offsets.s: arch/ia64/kvm/asm-offsets.c \
+ $(wildcard $(srctree)/arch/ia64/include/asm/*.h)\
+ $(wildcard $(srctree)/include/linux/*.h)
$(call if_changed_dep,cc_s_c)
$(obj)/$(offsets-file): arch/ia64/kvm/asm-offsets.s
$(call cmd,offsets)
+FORCE : $(obj)/$(offsets-file)
+
#
# Makefile for Kernel-based Virtual Machine module
#
kvm-objs := $(common-objs) kvm-ia64.o kvm_fw.o
obj-$(CONFIG_KVM) += kvm.o
-FORCE : $(obj)/$(offsets-file)
EXTRA_CFLAGS_vcpu.o += -mfixed-range=f2-f5,f12-f127
kvm-intel-objs = vmm.o vmm_ivt.o trampoline.o vcpu.o optvfault.o mmio.o \
vtlb.o process.o
struct kvm *kvm = vcpu->kvm;
struct call_data call_data;
int i;
+
call_data.ptc_g_data = p->u.ptc_g_data;
for (i = 0; i < KVM_MAX_VCPUS; i++) {
ktime_t kt;
long itc_diff;
unsigned long vcpu_now_itc;
-
unsigned long expires;
struct hrtimer *p_ht = &vcpu->arch.hlt_timer;
unsigned long cyc_per_usec = local_cpu_data->cyc_per_usec;
struct vpd *vpd = to_host(vcpu->kvm, vcpu->arch.vpd);
- vcpu_now_itc = ia64_getreg(_IA64_REG_AR_ITC) + vcpu->arch.itc_offset;
+ if (irqchip_in_kernel(vcpu->kvm)) {
- if (time_after(vcpu_now_itc, vpd->itm)) {
- vcpu->arch.timer_check = 1;
- return 1;
- }
- itc_diff = vpd->itm - vcpu_now_itc;
- if (itc_diff < 0)
- itc_diff = -itc_diff;
+ vcpu_now_itc = ia64_getreg(_IA64_REG_AR_ITC) + vcpu->arch.itc_offset;
- expires = div64_u64(itc_diff, cyc_per_usec);
- kt = ktime_set(0, 1000 * expires);
- vcpu->arch.ht_active = 1;
- hrtimer_start(p_ht, kt, HRTIMER_MODE_ABS);
+ if (time_after(vcpu_now_itc, vpd->itm)) {
+ vcpu->arch.timer_check = 1;
+ return 1;
+ }
+ itc_diff = vpd->itm - vcpu_now_itc;
+ if (itc_diff < 0)
+ itc_diff = -itc_diff;
+
+ expires = div64_u64(itc_diff, cyc_per_usec);
+ kt = ktime_set(0, 1000 * expires);
+
+ down_read(&vcpu->kvm->slots_lock);
+ vcpu->arch.ht_active = 1;
+ hrtimer_start(p_ht, kt, HRTIMER_MODE_ABS);
- if (irqchip_in_kernel(vcpu->kvm)) {
vcpu->arch.mp_state = KVM_MP_STATE_HALTED;
kvm_vcpu_block(vcpu);
hrtimer_cancel(p_ht);
vcpu->arch.ht_active = 0;
+ if (test_and_clear_bit(KVM_REQ_UNHALT, &vcpu->requests))
+ if (vcpu->arch.mp_state == KVM_MP_STATE_HALTED)
+ vcpu->arch.mp_state =
+ KVM_MP_STATE_RUNNABLE;
+ up_read(&vcpu->kvm->slots_lock);
+
if (vcpu->arch.mp_state != KVM_MP_STATE_RUNNABLE)
return -EINTR;
return 1;
static const int kvm_vti_max_exit_handlers =
sizeof(kvm_vti_exit_handlers)/sizeof(*kvm_vti_exit_handlers);
-static void kvm_prepare_guest_switch(struct kvm_vcpu *vcpu)
-{
-}
-
static uint32_t kvm_get_exit_reason(struct kvm_vcpu *vcpu)
{
struct exit_ctl_data *p_exit_data;
again:
preempt_disable();
-
- kvm_prepare_guest_switch(vcpu);
local_irq_disable();
if (signal_pending(current)) {
vcpu->guest_mode = 1;
kvm_guest_enter();
-
+ down_read(&vcpu->kvm->slots_lock);
r = vti_vcpu_run(vcpu, kvm_run);
if (r < 0) {
local_irq_enable();
* But we need to prevent reordering, hence this barrier():
*/
barrier();
-
kvm_guest_exit();
-
+ up_read(&vcpu->kvm->slots_lock);
preempt_enable();
r = kvm_handle_exit(kvm_run, vcpu);
if (unlikely(vcpu->arch.mp_state == KVM_MP_STATE_UNINITIALIZED)) {
kvm_vcpu_block(vcpu);
+ clear_bit(KVM_REQ_UNHALT, &vcpu->requests);
vcpu_put(vcpu);
return -EAGAIN;
}
kvm_build_io_pmt(kvm);
INIT_LIST_HEAD(&kvm->arch.assigned_dev_head);
+
+ /* Reserve bit 0 of irq_sources_bitmap for userspace irq source */
+ set_bit(KVM_USERSPACE_IRQ_SOURCE_ID, &kvm->arch.irq_sources_bitmap);
}
struct kvm *kvm_arch_create_vm(void)
goto out;
if (irqchip_in_kernel(kvm)) {
mutex_lock(&kvm->lock);
- kvm_ioapic_set_irq(kvm->arch.vioapic,
- irq_event.irq,
- irq_event.level);
+ kvm_set_irq(kvm, KVM_USERSPACE_IRQ_SOURCE_ID,
+ irq_event.irq, irq_event.level);
mutex_unlock(&kvm->lock);
r = 0;
}
wait_queue_head_t *q;
vcpu = container_of(data, struct kvm_vcpu, arch.hlt_timer);
+ q = &vcpu->wq;
+
if (vcpu->arch.mp_state != KVM_MP_STATE_HALTED)
goto out;
- q = &vcpu->wq;
- if (waitqueue_active(q)) {
- vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
+ if (waitqueue_active(q))
wake_up_interruptible(q);
- }
+
out:
+ vcpu->arch.timer_fired = 1;
vcpu->arch.timer_check = 1;
return HRTIMER_NORESTART;
}
void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
{
int ipi_pcpu = vcpu->cpu;
+ int cpu = get_cpu();
if (waitqueue_active(&vcpu->wq))
wake_up_interruptible(&vcpu->wq);
- if (vcpu->guest_mode)
+ if (vcpu->guest_mode && cpu != ipi_pcpu)
smp_call_function_single(ipi_pcpu, vcpu_kick_intr, vcpu, 0);
+ put_cpu();
}
int kvm_apic_set_irq(struct kvm_vcpu *vcpu, u8 vec, u8 trig)
if (!test_and_set_bit(vec, &vpd->irr[0])) {
vcpu->arch.irq_new_pending = 1;
- if (vcpu->arch.mp_state == KVM_MP_STATE_RUNNABLE)
- kvm_vcpu_kick(vcpu);
- else if (vcpu->arch.mp_state == KVM_MP_STATE_HALTED) {
- vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
- if (waitqueue_active(&vcpu->wq))
- wake_up_interruptible(&vcpu->wq);
- }
+ kvm_vcpu_kick(vcpu);
return 1;
}
return 0;
int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
{
- return 0;
+ return vcpu->arch.timer_fired;
}
gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn)
return index;
}
+static void prepare_for_halt(struct kvm_vcpu *vcpu)
+{
+ vcpu->arch.timer_pending = 1;
+ vcpu->arch.timer_fired = 0;
+}
+
int kvm_pal_emul(struct kvm_vcpu *vcpu, struct kvm_run *run)
{
break;
case PAL_HALT_LIGHT:
{
- vcpu->arch.timer_pending = 1;
INIT_PAL_STATUS_SUCCESS(result);
+ prepare_for_halt(vcpu);
if (kvm_highest_pending_irq(vcpu) == -1)
ret = kvm_emulate_halt(vcpu);
-
}
break;
if (!(VCPU(v, itv) & (1 << 16))) {
vcpu_pend_interrupt(v, VCPU(v, itv)
& 0xff);
- VMX(v, itc_check) = 0;
+ VMX(v, itc_check) = 0;
} else {
v->arch.timer_pending = 1;
}
select IP22_CPU_SCACHE
select IRQ_CPU
select GENERIC_ISA_DMA_SUPPORT_BROKEN
- select SGI_HAS_DS1286
select SGI_HAS_I8042
select SGI_HAS_INDYDOG
select SGI_HAS_HAL2
select HW_HAS_EISA
select I8253
select I8259
- select SGI_HAS_DS1286
select SGI_HAS_I8042
select SGI_HAS_INDYDOG
select SGI_HAS_HAL2
config SERIAL_RM9000
bool
-config SGI_HAS_DS1286
- bool
-
config SGI_HAS_INDYDOG
bool
CONFIG_INDYDOG=m
# CONFIG_HW_RANDOM is not set
# CONFIG_RTC is not set
-CONFIG_SGI_DS1286=m
# CONFIG_R3964 is not set
CONFIG_RAW_DRIVER=m
CONFIG_MAX_RAW_DEVS=256
# CONFIG_WATCHDOG is not set
CONFIG_HW_RANDOM=m
# CONFIG_RTC is not set
-CONFIG_SGI_IP27_RTC=y
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_DRM is not set
CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
CONFIG_IRQ_CPU=y
CONFIG_SWAP_IO_SPACE=y
-CONFIG_SGI_HAS_DS1286=y
CONFIG_SGI_HAS_INDYDOG=y
CONFIG_SGI_HAS_SEEQ=y
CONFIG_SGI_HAS_WD93=y
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_RTC is not set
-CONFIG_SGI_DS1286=y
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_RAW_DRIVER is not set
__clear_bit(nr, addr);
}
-#if defined(CONFIG_CPU_MIPS32) || defined(CONFIG_CPU_MIPS64)
-
/*
* Return the bit position (0..63) of the most significant 1 bit in a word
* Returns -1 if no 1 bit exists
*/
-static inline unsigned long __fls(unsigned long x)
+static inline unsigned long __fls(unsigned long word)
{
- int lz;
+ int num;
- if (sizeof(x) == 4) {
+ if (BITS_PER_LONG == 32 &&
+ __builtin_constant_p(cpu_has_mips_r) && cpu_has_mips_r) {
__asm__(
" .set push \n"
" .set mips32 \n"
" clz %0, %1 \n"
" .set pop \n"
- : "=r" (lz)
- : "r" (x));
+ : "=r" (num)
+ : "r" (word));
- return 31 - lz;
+ return 31 - num;
}
- BUG_ON(sizeof(x) != 8);
+ if (BITS_PER_LONG == 64 &&
+ __builtin_constant_p(cpu_has_mips64) && cpu_has_mips64) {
+ __asm__(
+ " .set push \n"
+ " .set mips64 \n"
+ " dclz %0, %1 \n"
+ " .set pop \n"
+ : "=r" (num)
+ : "r" (word));
- __asm__(
- " .set push \n"
- " .set mips64 \n"
- " dclz %0, %1 \n"
- " .set pop \n"
- : "=r" (lz)
- : "r" (x));
+ return 63 - num;
+ }
+
+ num = BITS_PER_LONG - 1;
- return 63 - lz;
+#if BITS_PER_LONG == 64
+ if (!(word & (~0ul << 32))) {
+ num -= 32;
+ word <<= 32;
+ }
+#endif
+ if (!(word & (~0ul << (BITS_PER_LONG-16)))) {
+ num -= 16;
+ word <<= 16;
+ }
+ if (!(word & (~0ul << (BITS_PER_LONG-8)))) {
+ num -= 8;
+ word <<= 8;
+ }
+ if (!(word & (~0ul << (BITS_PER_LONG-4)))) {
+ num -= 4;
+ word <<= 4;
+ }
+ if (!(word & (~0ul << (BITS_PER_LONG-2)))) {
+ num -= 2;
+ word <<= 2;
+ }
+ if (!(word & (~0ul << (BITS_PER_LONG-1))))
+ num -= 1;
+ return num;
}
/*
* This is defined the same way as ffs.
* Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
*/
-static inline int fls(int word)
+static inline int fls(int x)
{
- __asm__("clz %0, %1" : "=r" (word) : "r" (word));
+ int r;
- return 32 - word;
-}
+ if (__builtin_constant_p(cpu_has_mips_r) && cpu_has_mips_r) {
+ __asm__("clz %0, %1" : "=r" (x) : "r" (x));
-#if defined(CONFIG_64BIT) && defined(CONFIG_CPU_MIPS64)
-static inline int fls64(__u64 word)
-{
- __asm__("dclz %0, %1" : "=r" (word) : "r" (word));
+ return 32 - x;
+ }
- return 64 - word;
+ r = 32;
+ if (!x)
+ return 0;
+ if (!(x & 0xffff0000u)) {
+ x <<= 16;
+ r -= 16;
+ }
+ if (!(x & 0xff000000u)) {
+ x <<= 8;
+ r -= 8;
+ }
+ if (!(x & 0xf0000000u)) {
+ x <<= 4;
+ r -= 4;
+ }
+ if (!(x & 0xc0000000u)) {
+ x <<= 2;
+ r -= 2;
+ }
+ if (!(x & 0x80000000u)) {
+ x <<= 1;
+ r -= 1;
+ }
+ return r;
}
-#else
+
#include <asm-generic/bitops/fls64.h>
-#endif
/*
* ffs - find first bit set.
return fls(word & -word);
}
-#else
-
-#include <asm-generic/bitops/__ffs.h>
-#include <asm-generic/bitops/__fls.h>
-#include <asm-generic/bitops/ffs.h>
-#include <asm-generic/bitops/fls.h>
-#include <asm-generic/bitops/fls64.h>
-
-#endif /*defined(CONFIG_CPU_MIPS32) || defined(CONFIG_CPU_MIPS64) */
-
#include <asm-generic/bitops/ffz.h>
#include <asm-generic/bitops/find.h>
#define _BRK_THREADBP 11 /* For threads, user bp (used by debuggers) */
#define BRK_BUG 512 /* Used by BUG() */
#define BRK_KDB 513 /* Used in KDB_ENTER() */
+#define BRK_MEMU 514 /* Used by FPU emulator */
#define BRK_MULOVF 1023 /* Multiply overflow */
#endif /* __ASM_BREAK_H */
#include <linux/compiler.h>
#include <asm/types.h>
-#ifdef __GNUC__
+#if defined(__MIPSEB__)
+# define __BIG_ENDIAN
+#elif defined(__MIPSEL__)
+# define __LITTLE_ENDIAN
+#else
+# error "MIPS, but neither __MIPSEB__, nor __MIPSEL__???"
+#endif
+
+#define __SWAB_64_THRU_32__
#ifdef CONFIG_CPU_MIPSR2
-static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x)
+static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
{
__asm__(
" wsbh %0, %1 \n"
return x;
}
-#define __arch__swab16(x) ___arch__swab16(x)
+#define __arch_swab16 __arch_swab16
-static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
+static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
{
__asm__(
" wsbh %0, %1 \n"
return x;
}
-#define __arch__swab32(x) ___arch__swab32(x)
+#define __arch_swab32 __arch_swab32
#ifdef CONFIG_CPU_MIPS64_R2
-
-static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
+static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
{
__asm__(
" dsbh %0, %1 \n"
return x;
}
-
-#define __arch__swab64(x) ___arch__swab64(x)
-
+#define __arch_swab64 __arch_swab64
#endif /* CONFIG_CPU_MIPS64_R2 */
#endif /* CONFIG_CPU_MIPSR2 */
-#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
-# define __BYTEORDER_HAS_U64__
-# define __SWAB_64_THRU_32__
-#endif
-
-#endif /* __GNUC__ */
-
-#if defined(__MIPSEB__)
-# include <linux/byteorder/big_endian.h>
-#elif defined(__MIPSEL__)
-# include <linux/byteorder/little_endian.h>
-#else
-# error "MIPS, but neither __MIPSEB__, nor __MIPSEL__???"
-#endif
+#include <linux/byteorder.h>
#endif /* _ASM_BYTEORDER_H */
#define cpu_has_mips64 (cpu_has_mips64r1 | cpu_has_mips64r2)
#define cpu_has_mips_r1 (cpu_has_mips32r1 | cpu_has_mips64r1)
#define cpu_has_mips_r2 (cpu_has_mips32r2 | cpu_has_mips64r2)
+#define cpu_has_mips_r (cpu_has_mips32r1 | cpu_has_mips32r2 | \
+ cpu_has_mips64r1 | cpu_has_mips64r2)
#ifndef cpu_has_dsp
#define cpu_has_dsp (cpu_data[0].ases & MIPS_ASE_DSP)
+++ /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.
- *
- * Machine dependent access functions for RTC registers.
- *
- * Copyright (C) 2003 Ralf Baechle (ralf@linux-mips.org)
- */
-#ifndef _ASM_DS1286_H
-#define _ASM_DS1286_H
-
-#include <ds1286.h>
-
-#endif /* _ASM_DS1286_H */
#ifndef _ASM_FPU_EMULATOR_H
#define _ASM_FPU_EMULATOR_H
+#include <asm/break.h>
+#include <asm/inst.h>
+
struct mips_fpu_emulator_stats {
unsigned int emulated;
unsigned int loads;
extern struct mips_fpu_emulator_stats fpuemustats;
+extern int mips_dsemul(struct pt_regs *regs, mips_instruction ir,
+ unsigned long cpc);
+extern int do_dsemulret(struct pt_regs *xcp);
+
+/*
+ * Instruction inserted following the badinst to further tag the sequence
+ */
+#define BD_COOKIE 0x0000bd36 /* tne $0, $0 with baggage */
+
+/*
+ * Break instruction with special math emu break code set
+ */
+#define BREAK_MATH (0x0000000d | (BRK_MEMU << 16))
+
#endif /* _ASM_FPU_EMULATOR_H */
+++ /dev/null
-/*
- * Registers for the SGS-Thomson M48T35 Timekeeper RAM chip
- */
-#ifndef _ASM_M48T35_H
-#define _ASM_M48T35_H
-
-#include <linux/spinlock.h>
-
-extern spinlock_t rtc_lock;
-
-struct m48t35_rtc {
- volatile u8 pad[0x7ff8]; /* starts at 0x7ff8 */
- volatile u8 control;
- volatile u8 sec;
- volatile u8 min;
- volatile u8 hour;
- volatile u8 day;
- volatile u8 date;
- volatile u8 month;
- volatile u8 year;
-};
-
-#define M48T35_RTC_SET 0x80
-#define M48T35_RTC_STOPPED 0x80
-#define M48T35_RTC_READ 0x40
-
-#endif /* _ASM_M48T35_H */
#define R4K_OPTS (MIPS_CPU_TLB | MIPS_CPU_4KEX | MIPS_CPU_4K_CACHE \
| MIPS_CPU_COUNTER)
-static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
+static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
{
switch (c->processor_id & 0xff00) {
case PRID_IMP_R2000:
c->cputype = CPU_R2000;
+ __cpu_name[cpu] = "R2000";
c->isa_level = MIPS_CPU_ISA_I;
c->options = MIPS_CPU_TLB | MIPS_CPU_3K_CACHE |
MIPS_CPU_NOFPUEX;
c->tlbsize = 64;
break;
case PRID_IMP_R3000:
- if ((c->processor_id & 0xff) == PRID_REV_R3000A)
- if (cpu_has_confreg())
+ if ((c->processor_id & 0xff) == PRID_REV_R3000A) {
+ if (cpu_has_confreg()) {
c->cputype = CPU_R3081E;
- else
+ __cpu_name[cpu] = "R3081";
+ } else {
c->cputype = CPU_R3000A;
- else
+ __cpu_name[cpu] = "R3000A";
+ }
+ break;
+ } else {
c->cputype = CPU_R3000;
+ __cpu_name[cpu] = "R3000";
+ }
c->isa_level = MIPS_CPU_ISA_I;
c->options = MIPS_CPU_TLB | MIPS_CPU_3K_CACHE |
MIPS_CPU_NOFPUEX;
break;
case PRID_IMP_R4000:
if (read_c0_config() & CONF_SC) {
- if ((c->processor_id & 0xff) >= PRID_REV_R4400)
+ if ((c->processor_id & 0xff) >= PRID_REV_R4400) {
c->cputype = CPU_R4400PC;
- else
+ __cpu_name[cpu] = "R4400PC";
+ } else {
c->cputype = CPU_R4000PC;
+ __cpu_name[cpu] = "R4000PC";
+ }
} else {
- if ((c->processor_id & 0xff) >= PRID_REV_R4400)
+ if ((c->processor_id & 0xff) >= PRID_REV_R4400) {
c->cputype = CPU_R4400SC;
- else
+ __cpu_name[cpu] = "R4400SC";
+ } else {
c->cputype = CPU_R4000SC;
+ __cpu_name[cpu] = "R4000SC";
+ }
}
c->isa_level = MIPS_CPU_ISA_III;
switch (c->processor_id & 0xf0) {
case PRID_REV_VR4111:
c->cputype = CPU_VR4111;
+ __cpu_name[cpu] = "NEC VR4111";
break;
case PRID_REV_VR4121:
c->cputype = CPU_VR4121;
+ __cpu_name[cpu] = "NEC VR4121";
break;
case PRID_REV_VR4122:
- if ((c->processor_id & 0xf) < 0x3)
+ if ((c->processor_id & 0xf) < 0x3) {
c->cputype = CPU_VR4122;
- else
+ __cpu_name[cpu] = "NEC VR4122";
+ } else {
c->cputype = CPU_VR4181A;
+ __cpu_name[cpu] = "NEC VR4181A";
+ }
break;
case PRID_REV_VR4130:
- if ((c->processor_id & 0xf) < 0x4)
+ if ((c->processor_id & 0xf) < 0x4) {
c->cputype = CPU_VR4131;
- else
+ __cpu_name[cpu] = "NEC VR4131";
+ } else {
c->cputype = CPU_VR4133;
+ __cpu_name[cpu] = "NEC VR4133";
+ }
break;
default:
printk(KERN_INFO "Unexpected CPU of NEC VR4100 series\n");
c->cputype = CPU_VR41XX;
+ __cpu_name[cpu] = "NEC Vr41xx";
break;
}
c->isa_level = MIPS_CPU_ISA_III;
break;
case PRID_IMP_R4300:
c->cputype = CPU_R4300;
+ __cpu_name[cpu] = "R4300";
c->isa_level = MIPS_CPU_ISA_III;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
MIPS_CPU_LLSC;
break;
case PRID_IMP_R4600:
c->cputype = CPU_R4600;
+ __cpu_name[cpu] = "R4600";
c->isa_level = MIPS_CPU_ISA_III;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
MIPS_CPU_LLSC;
* it's c0_prid id number with the TX3900.
*/
c->cputype = CPU_R4650;
+ __cpu_name[cpu] = "R4650";
c->isa_level = MIPS_CPU_ISA_III;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_LLSC;
c->tlbsize = 48;
if ((c->processor_id & 0xf0) == (PRID_REV_TX3927 & 0xf0)) {
c->cputype = CPU_TX3927;
+ __cpu_name[cpu] = "TX3927";
c->tlbsize = 64;
} else {
switch (c->processor_id & 0xff) {
case PRID_REV_TX3912:
c->cputype = CPU_TX3912;
+ __cpu_name[cpu] = "TX3912";
c->tlbsize = 32;
break;
case PRID_REV_TX3922:
c->cputype = CPU_TX3922;
+ __cpu_name[cpu] = "TX3922";
c->tlbsize = 64;
break;
- default:
- c->cputype = CPU_UNKNOWN;
- break;
}
}
break;
case PRID_IMP_R4700:
c->cputype = CPU_R4700;
+ __cpu_name[cpu] = "R4700";
c->isa_level = MIPS_CPU_ISA_III;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
MIPS_CPU_LLSC;
break;
case PRID_IMP_TX49:
c->cputype = CPU_TX49XX;
+ __cpu_name[cpu] = "R49XX";
c->isa_level = MIPS_CPU_ISA_III;
c->options = R4K_OPTS | MIPS_CPU_LLSC;
if (!(c->processor_id & 0x08))
break;
case PRID_IMP_R5000:
c->cputype = CPU_R5000;
+ __cpu_name[cpu] = "R5000";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
MIPS_CPU_LLSC;
break;
case PRID_IMP_R5432:
c->cputype = CPU_R5432;
+ __cpu_name[cpu] = "R5432";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
MIPS_CPU_WATCH | MIPS_CPU_LLSC;
break;
case PRID_IMP_R5500:
c->cputype = CPU_R5500;
+ __cpu_name[cpu] = "R5500";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
MIPS_CPU_WATCH | MIPS_CPU_LLSC;
break;
case PRID_IMP_NEVADA:
c->cputype = CPU_NEVADA;
+ __cpu_name[cpu] = "Nevada";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
MIPS_CPU_DIVEC | MIPS_CPU_LLSC;
break;
case PRID_IMP_R6000:
c->cputype = CPU_R6000;
+ __cpu_name[cpu] = "R6000";
c->isa_level = MIPS_CPU_ISA_II;
c->options = MIPS_CPU_TLB | MIPS_CPU_FPU |
MIPS_CPU_LLSC;
break;
case PRID_IMP_R6000A:
c->cputype = CPU_R6000A;
+ __cpu_name[cpu] = "R6000A";
c->isa_level = MIPS_CPU_ISA_II;
c->options = MIPS_CPU_TLB | MIPS_CPU_FPU |
MIPS_CPU_LLSC;
break;
case PRID_IMP_RM7000:
c->cputype = CPU_RM7000;
+ __cpu_name[cpu] = "RM7000";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
MIPS_CPU_LLSC;
break;
case PRID_IMP_RM9000:
c->cputype = CPU_RM9000;
+ __cpu_name[cpu] = "RM9000";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
MIPS_CPU_LLSC;
break;
case PRID_IMP_R8000:
c->cputype = CPU_R8000;
+ __cpu_name[cpu] = "RM8000";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = MIPS_CPU_TLB | MIPS_CPU_4KEX |
MIPS_CPU_FPU | MIPS_CPU_32FPR |
break;
case PRID_IMP_R10000:
c->cputype = CPU_R10000;
+ __cpu_name[cpu] = "R10000";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX |
MIPS_CPU_FPU | MIPS_CPU_32FPR |
break;
case PRID_IMP_R12000:
c->cputype = CPU_R12000;
+ __cpu_name[cpu] = "R12000";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX |
MIPS_CPU_FPU | MIPS_CPU_32FPR |
break;
case PRID_IMP_R14000:
c->cputype = CPU_R14000;
+ __cpu_name[cpu] = "R14000";
c->isa_level = MIPS_CPU_ISA_IV;
c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX |
MIPS_CPU_FPU | MIPS_CPU_32FPR |
break;
case PRID_IMP_LOONGSON2:
c->cputype = CPU_LOONGSON2;
+ __cpu_name[cpu] = "ICT Loongson-2";
c->isa_level = MIPS_CPU_ISA_III;
c->options = R4K_OPTS |
MIPS_CPU_FPU | MIPS_CPU_LLSC |
static void __cpuinit decode_configs(struct cpuinfo_mips *c)
{
+ int ok;
+
/* MIPS32 or MIPS64 compliant CPU. */
c->options = MIPS_CPU_4KEX | MIPS_CPU_4K_CACHE | MIPS_CPU_COUNTER |
MIPS_CPU_DIVEC | MIPS_CPU_LLSC | MIPS_CPU_MCHECK;
c->scache.flags = MIPS_CACHE_NOT_PRESENT;
- /* Read Config registers. */
- if (!decode_config0(c))
- return; /* actually worth a panic() */
- if (!decode_config1(c))
- return;
- if (!decode_config2(c))
- return;
- if (!decode_config3(c))
- return;
+ ok = decode_config0(c); /* Read Config registers. */
+ BUG_ON(!ok); /* Arch spec violation! */
+ if (ok)
+ ok = decode_config1(c);
+ if (ok)
+ ok = decode_config2(c);
+ if (ok)
+ ok = decode_config3(c);
+
+ mips_probe_watch_registers(c);
}
#ifdef CONFIG_CPU_MIPSR2
static inline void spram_config(void) {}
#endif
-static inline void cpu_probe_mips(struct cpuinfo_mips *c)
+static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu)
{
decode_configs(c);
- mips_probe_watch_registers(c);
switch (c->processor_id & 0xff00) {
case PRID_IMP_4KC:
c->cputype = CPU_4KC;
+ __cpu_name[cpu] = "MIPS 4Kc";
break;
case PRID_IMP_4KEC:
c->cputype = CPU_4KEC;
+ __cpu_name[cpu] = "MIPS 4KEc";
break;
case PRID_IMP_4KECR2:
c->cputype = CPU_4KEC;
+ __cpu_name[cpu] = "MIPS 4KEc";
break;
case PRID_IMP_4KSC:
case PRID_IMP_4KSD:
c->cputype = CPU_4KSC;
+ __cpu_name[cpu] = "MIPS 4KSc";
break;
case PRID_IMP_5KC:
c->cputype = CPU_5KC;
+ __cpu_name[cpu] = "MIPS 5Kc";
break;
case PRID_IMP_20KC:
c->cputype = CPU_20KC;
+ __cpu_name[cpu] = "MIPS 20Kc";
break;
case PRID_IMP_24K:
case PRID_IMP_24KE:
c->cputype = CPU_24K;
+ __cpu_name[cpu] = "MIPS 24Kc";
break;
case PRID_IMP_25KF:
c->cputype = CPU_25KF;
+ __cpu_name[cpu] = "MIPS 25Kc";
break;
case PRID_IMP_34K:
c->cputype = CPU_34K;
+ __cpu_name[cpu] = "MIPS 34Kc";
break;
case PRID_IMP_74K:
c->cputype = CPU_74K;
+ __cpu_name[cpu] = "MIPS 74Kc";
break;
case PRID_IMP_1004K:
c->cputype = CPU_1004K;
+ __cpu_name[cpu] = "MIPS 1004Kc";
break;
}
spram_config();
}
-static inline void cpu_probe_alchemy(struct cpuinfo_mips *c)
+static inline void cpu_probe_alchemy(struct cpuinfo_mips *c, unsigned int cpu)
{
decode_configs(c);
switch (c->processor_id & 0xff00) {
switch ((c->processor_id >> 24) & 0xff) {
case 0:
c->cputype = CPU_AU1000;
+ __cpu_name[cpu] = "Au1000";
break;
case 1:
c->cputype = CPU_AU1500;
+ __cpu_name[cpu] = "Au1500";
break;
case 2:
c->cputype = CPU_AU1100;
+ __cpu_name[cpu] = "Au1100";
break;
case 3:
c->cputype = CPU_AU1550;
+ __cpu_name[cpu] = "Au1550";
break;
case 4:
c->cputype = CPU_AU1200;
- if (2 == (c->processor_id & 0xff))
+ __cpu_name[cpu] = "Au1200";
+ if ((c->processor_id & 0xff) == 2) {
c->cputype = CPU_AU1250;
+ __cpu_name[cpu] = "Au1250";
+ }
break;
case 5:
c->cputype = CPU_AU1210;
+ __cpu_name[cpu] = "Au1210";
break;
default:
panic("Unknown Au Core!");
}
}
-static inline void cpu_probe_sibyte(struct cpuinfo_mips *c)
+static inline void cpu_probe_sibyte(struct cpuinfo_mips *c, unsigned int cpu)
{
decode_configs(c);
switch (c->processor_id & 0xff00) {
case PRID_IMP_SB1:
c->cputype = CPU_SB1;
+ __cpu_name[cpu] = "SiByte SB1";
/* FPU in pass1 is known to have issues. */
if ((c->processor_id & 0xff) < 0x02)
c->options &= ~(MIPS_CPU_FPU | MIPS_CPU_32FPR);
break;
case PRID_IMP_SB1A:
c->cputype = CPU_SB1A;
+ __cpu_name[cpu] = "SiByte SB1A";
break;
}
}
-static inline void cpu_probe_sandcraft(struct cpuinfo_mips *c)
+static inline void cpu_probe_sandcraft(struct cpuinfo_mips *c, unsigned int cpu)
{
decode_configs(c);
switch (c->processor_id & 0xff00) {
case PRID_IMP_SR71000:
c->cputype = CPU_SR71000;
+ __cpu_name[cpu] = "Sandcraft SR71000";
c->scache.ways = 8;
c->tlbsize = 64;
break;
}
}
-static inline void cpu_probe_nxp(struct cpuinfo_mips *c)
+static inline void cpu_probe_nxp(struct cpuinfo_mips *c, unsigned int cpu)
{
decode_configs(c);
switch (c->processor_id & 0xff00) {
case PRID_IMP_PR4450:
c->cputype = CPU_PR4450;
+ __cpu_name[cpu] = "Philips PR4450";
c->isa_level = MIPS_CPU_ISA_M32R1;
break;
- default:
- panic("Unknown NXP Core!"); /* REVISIT: die? */
- break;
}
}
-
-static inline void cpu_probe_broadcom(struct cpuinfo_mips *c)
+static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu)
{
decode_configs(c);
switch (c->processor_id & 0xff00) {
case PRID_IMP_BCM3302:
c->cputype = CPU_BCM3302;
+ __cpu_name[cpu] = "Broadcom BCM3302";
break;
case PRID_IMP_BCM4710:
c->cputype = CPU_BCM4710;
- break;
- default:
- c->cputype = CPU_UNKNOWN;
+ __cpu_name[cpu] = "Broadcom BCM4710";
break;
}
}
const char *__cpu_name[NR_CPUS];
-/*
- * Name a CPU
- */
-static __cpuinit const char *cpu_to_name(struct cpuinfo_mips *c)
-{
- const char *name = NULL;
-
- switch (c->cputype) {
- case CPU_UNKNOWN: name = "unknown"; break;
- case CPU_R2000: name = "R2000"; break;
- case CPU_R3000: name = "R3000"; break;
- case CPU_R3000A: name = "R3000A"; break;
- case CPU_R3041: name = "R3041"; break;
- case CPU_R3051: name = "R3051"; break;
- case CPU_R3052: name = "R3052"; break;
- case CPU_R3081: name = "R3081"; break;
- case CPU_R3081E: name = "R3081E"; break;
- case CPU_R4000PC: name = "R4000PC"; break;
- case CPU_R4000SC: name = "R4000SC"; break;
- case CPU_R4000MC: name = "R4000MC"; break;
- case CPU_R4200: name = "R4200"; break;
- case CPU_R4400PC: name = "R4400PC"; break;
- case CPU_R4400SC: name = "R4400SC"; break;
- case CPU_R4400MC: name = "R4400MC"; break;
- case CPU_R4600: name = "R4600"; break;
- case CPU_R6000: name = "R6000"; break;
- case CPU_R6000A: name = "R6000A"; break;
- case CPU_R8000: name = "R8000"; break;
- case CPU_R10000: name = "R10000"; break;
- case CPU_R12000: name = "R12000"; break;
- case CPU_R14000: name = "R14000"; break;
- case CPU_R4300: name = "R4300"; break;
- case CPU_R4650: name = "R4650"; break;
- case CPU_R4700: name = "R4700"; break;
- case CPU_R5000: name = "R5000"; break;
- case CPU_R5000A: name = "R5000A"; break;
- case CPU_R4640: name = "R4640"; break;
- case CPU_NEVADA: name = "Nevada"; break;
- case CPU_RM7000: name = "RM7000"; break;
- case CPU_RM9000: name = "RM9000"; break;
- case CPU_R5432: name = "R5432"; break;
- case CPU_4KC: name = "MIPS 4Kc"; break;
- case CPU_5KC: name = "MIPS 5Kc"; break;
- case CPU_R4310: name = "R4310"; break;
- case CPU_SB1: name = "SiByte SB1"; break;
- case CPU_SB1A: name = "SiByte SB1A"; break;
- case CPU_TX3912: name = "TX3912"; break;
- case CPU_TX3922: name = "TX3922"; break;
- case CPU_TX3927: name = "TX3927"; break;
- case CPU_AU1000: name = "Au1000"; break;
- case CPU_AU1500: name = "Au1500"; break;
- case CPU_AU1100: name = "Au1100"; break;
- case CPU_AU1550: name = "Au1550"; break;
- case CPU_AU1200: name = "Au1200"; break;
- case CPU_AU1210: name = "Au1210"; break;
- case CPU_AU1250: name = "Au1250"; break;
- case CPU_4KEC: name = "MIPS 4KEc"; break;
- case CPU_4KSC: name = "MIPS 4KSc"; break;
- case CPU_VR41XX: name = "NEC Vr41xx"; break;
- case CPU_R5500: name = "R5500"; break;
- case CPU_TX49XX: name = "TX49xx"; break;
- case CPU_20KC: name = "MIPS 20Kc"; break;
- case CPU_24K: name = "MIPS 24K"; break;
- case CPU_25KF: name = "MIPS 25Kf"; break;
- case CPU_34K: name = "MIPS 34K"; break;
- case CPU_1004K: name = "MIPS 1004K"; break;
- case CPU_74K: name = "MIPS 74K"; break;
- case CPU_VR4111: name = "NEC VR4111"; break;
- case CPU_VR4121: name = "NEC VR4121"; break;
- case CPU_VR4122: name = "NEC VR4122"; break;
- case CPU_VR4131: name = "NEC VR4131"; break;
- case CPU_VR4133: name = "NEC VR4133"; break;
- case CPU_VR4181: name = "NEC VR4181"; break;
- case CPU_VR4181A: name = "NEC VR4181A"; break;
- case CPU_SR71000: name = "Sandcraft SR71000"; break;
- case CPU_BCM3302: name = "Broadcom BCM3302"; break;
- case CPU_BCM4710: name = "Broadcom BCM4710"; break;
- case CPU_PR4450: name = "Philips PR4450"; break;
- case CPU_LOONGSON2: name = "ICT Loongson-2"; break;
- default:
- BUG();
- }
-
- return name;
-}
-
__cpuinit void cpu_probe(void)
{
struct cpuinfo_mips *c = ¤t_cpu_data;
c->processor_id = read_c0_prid();
switch (c->processor_id & 0xff0000) {
case PRID_COMP_LEGACY:
- cpu_probe_legacy(c);
+ cpu_probe_legacy(c, cpu);
break;
case PRID_COMP_MIPS:
- cpu_probe_mips(c);
+ cpu_probe_mips(c, cpu);
break;
case PRID_COMP_ALCHEMY:
- cpu_probe_alchemy(c);
+ cpu_probe_alchemy(c, cpu);
break;
case PRID_COMP_SIBYTE:
- cpu_probe_sibyte(c);
+ cpu_probe_sibyte(c, cpu);
break;
case PRID_COMP_BROADCOM:
- cpu_probe_broadcom(c);
+ cpu_probe_broadcom(c, cpu);
break;
case PRID_COMP_SANDCRAFT:
- cpu_probe_sandcraft(c);
+ cpu_probe_sandcraft(c, cpu);
break;
case PRID_COMP_NXP:
- cpu_probe_nxp(c);
+ cpu_probe_nxp(c, cpu);
break;
- default:
- c->cputype = CPU_UNKNOWN;
}
+ BUG_ON(!__cpu_name[cpu]);
+ BUG_ON(c->cputype == CPU_UNKNOWN);
+
/*
* Platform code can force the cpu type to optimize code
* generation. In that case be sure the cpu type is correctly
}
}
- __cpu_name[cpu] = cpu_to_name(c);
-
if (cpu_has_mips_r2)
c->srsets = ((read_c0_srsctl() >> 26) & 0x0f) + 1;
else
/* preload SMP state for boot cpu */
void __devinit smp_prepare_boot_cpu(void)
{
- /*
- * This assumes that bootup is always handled by the processor
- * with the logic and physical number 0.
- */
- __cpu_number_map[0] = 0;
- __cpu_logical_map[0] = 0;
cpu_set(0, phys_cpu_present_map);
cpu_set(0, cpu_online_map);
cpu_set(0, cpu_callin_map);
#include <asm/cpu.h>
#include <asm/dsp.h>
#include <asm/fpu.h>
+#include <asm/fpu_emulator.h>
#include <asm/mipsregs.h>
#include <asm/mipsmtregs.h>
#include <asm/module.h>
die_if_kernel("Kernel bug detected", regs);
force_sig(SIGTRAP, current);
break;
+ case BRK_MEMU:
+ /*
+ * Address errors may be deliberately induced by the FPU
+ * emulator to retake control of the CPU after executing the
+ * instruction in the delay slot of an emulated branch.
+ *
+ * Terminate if exception was recognized as a delay slot return
+ * otherwise handle as normal.
+ */
+ if (do_dsemulret(regs))
+ return;
+
+ die_if_kernel("Math emu break/trap", regs);
+ force_sig(SIGTRAP, current);
+ break;
default:
scnprintf(b, sizeof(b), "%s instruction in kernel code", str);
die_if_kernel(b, regs);
#ifdef CONFIG_64BIT
unsigned long uncached_ebase = TO_UNCAC(ebase);
#endif
+ if (cpu_has_mips_r2)
+ ebase += (read_c0_ebase() & 0x3ffff000);
if (!addr)
panic(panic_null_cerr);
if (cpu_has_veic || cpu_has_vint)
ebase = (unsigned long) alloc_bootmem_low_pages(0x200 + VECTORSPACING*64);
- else
+ else {
ebase = CAC_BASE;
+ if (cpu_has_mips_r2)
+ ebase += (read_c0_ebase() & 0x3ffff000);
+ }
per_cpu_trap_init();
if (cpu_has_vce)
/* Special exception: R4[04]00 uses also the divec space. */
- memcpy((void *)(CAC_BASE + 0x180), &except_vec3_r4000, 0x100);
+ memcpy((void *)(ebase + 0x180), &except_vec3_r4000, 0x100);
else if (cpu_has_4kex)
- memcpy((void *)(CAC_BASE + 0x180), &except_vec3_generic, 0x80);
+ memcpy((void *)(ebase + 0x180), &except_vec3_generic, 0x80);
else
- memcpy((void *)(CAC_BASE + 0x080), &except_vec3_generic, 0x80);
+ memcpy((void *)(ebase + 0x080), &except_vec3_generic, 0x80);
signal_init();
#ifdef CONFIG_MIPS32_COMPAT
asmlinkage void do_ade(struct pt_regs *regs)
{
- extern int do_dsemulret(struct pt_regs *);
unsigned int __user *pc;
mm_segment_t seg;
- /*
- * Address errors may be deliberately induced by the FPU emulator to
- * retake control of the CPU after executing the instruction in the
- * delay slot of an emulated branch.
- */
- /* Terminate if exception was recognized as a delay slot return */
- if (do_dsemulret(regs))
- return;
-
- /* Otherwise handle as normal */
-
/*
* Did we catch a fault trying to load an instruction?
* Or are we running in MIPS16 mode?
#include <asm/branch.h>
#include "ieee754.h"
-#include "dsemul.h"
/* Strap kernel emulator for full MIPS IV emulation */
/* cop control register rd -> gpr[rt] */
u32 value;
- if (ir == CP1UNDEF) {
- return do_dsemulret(xcp);
- }
if (MIPSInst_RD(ir) == FPCREG_CSR) {
value = ctx->fcr31;
value = (value & ~0x3) | mips_rm[value & 0x3];
#include <asm/fpu_emulator.h>
#include "ieee754.h"
-#include "dsemul.h"
/* Strap kernel emulator for full MIPS IV emulation */
return SIGBUS;
err = __put_user(ir, &fr->emul);
- err |= __put_user((mips_instruction)BADINST, &fr->badinst);
+ err |= __put_user((mips_instruction)BREAK_MATH, &fr->badinst);
err |= __put_user((mips_instruction)BD_COOKIE, &fr->cookie);
err |= __put_user(cpc, &fr->epc);
/*
* Do some sanity checking on the stackframe:
*
- * - Is the instruction pointed to by the EPC an BADINST?
+ * - Is the instruction pointed to by the EPC an BREAK_MATH?
* - Is the following memory word the BD_COOKIE?
*/
err = __get_user(insn, &fr->badinst);
err |= __get_user(cookie, &fr->cookie);
- if (unlikely(err || (insn != BADINST) || (cookie != BD_COOKIE))) {
+ if (unlikely(err || (insn != BREAK_MATH) || (cookie != BD_COOKIE))) {
fpuemustats.errors++;
return 0;
}
+++ /dev/null
-extern int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc);
-extern int do_dsemulret(struct pt_regs *xcp);
-
-/* Instruction which will always cause an address error */
-#define AdELOAD 0x8c000001 /* lw $0,1($0) */
-/* Instruction which will plainly cause a CP1 exception when FPU is disabled */
-#define CP1UNDEF 0x44400001 /* cfc1 $0,$0 undef */
-
-/* Instruction inserted following the badinst to further tag the sequence */
-#define BD_COOKIE 0x0000bd36 /* tne $0,$0 with baggage */
-
-/* Setup which instruction to use for trampoline */
-#ifdef STANDALONE_EMULATOR
-#define BADINST CP1UNDEF
-#else
-#define BADINST AdELOAD
-#endif
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/gpio.h>
+#include <linux/leds.h>
#include <asm/io.h>
#include <asm/reboot.h>
#include <asm/txx9/generic.h>
/* TX4927-SIO DTR on (PIO[15]) */
gpio_request(15, "sio-dtr");
gpio_direction_output(15, 1);
- gpio_request(0, "led");
- gpio_direction_output(0, 1);
- gpio_request(1, "led");
- gpio_direction_output(1, 1);
tx4927_sio_init(0, 0);
#ifdef CONFIG_SERIAL_TXX9_CONSOLE
tx4927_mtd_init(i);
}
+static void __init rbtx4927_gpioled_init(void)
+{
+ static struct gpio_led leds[] = {
+ { .name = "gpioled:green:0", .gpio = 0, .active_low = 1, },
+ { .name = "gpioled:green:1", .gpio = 1, .active_low = 1, },
+ };
+ static struct gpio_led_platform_data pdata = {
+ .num_leds = ARRAY_SIZE(leds),
+ .leds = leds,
+ };
+ struct platform_device *pdev = platform_device_alloc("leds-gpio", 0);
+
+ if (!pdev)
+ return;
+ pdev->dev.platform_data = &pdata;
+ if (platform_device_add(pdev))
+ platform_device_put(pdev);
+}
+
static void __init rbtx4927_device_init(void)
{
toshiba_rbtx4927_rtc_init();
tx4927_wdt_init();
rbtx4927_mtd_init();
txx9_iocled_init(RBTX4927_LED_ADDR - IO_BASE, -1, 3, 1, "green", NULL);
+ rbtx4927_gpioled_init();
}
struct txx9_board_vec rbtx4927_vec __initdata = {
#if defined(CONFIG_TC35815) || defined(CONFIG_TC35815_MODULE)
int i, j;
unsigned char ethaddr[2][6];
+ u8 bdipsw = readb(rbtx4939_bdipsw_addr) & 0x0f;
+
for (i = 0; i < 2; i++) {
unsigned long area = CKSEG1 + 0x1fff0000 + (i * 0x10);
- if (readb(rbtx4939_bdipsw_addr) & 8) {
+ if (bdipsw == 0)
+ memcpy(ethaddr[i], (void *)area, 6);
+ else {
u16 buf[3];
- area -= 0x03000000;
+ if (bdipsw & 8)
+ area -= 0x03000000;
+ else
+ area -= 0x01000000;
for (j = 0; j < 3; j++)
buf[j] = le16_to_cpup((u16 *)(area + j * 2));
memcpy(ethaddr[i], buf, 6);
- } else
- memcpy(ethaddr[i], (void *)area, 6);
+ }
}
tx4939_ethaddr_init(ethaddr[0], ethaddr[1]);
#endif
config PPC
bool
default y
- select HAVE_DYNAMIC_FTRACE
- select HAVE_FTRACE
+ select HAVE_FUNCTION_TRACER
select ARCH_WANT_OPTIONAL_GPIOLIB
select HAVE_IDE
select HAVE_IOREMAP_PROT
endif
# Work around a gcc code-gen bug with -fno-omit-frame-pointer.
-ifeq ($(CONFIG_FTRACE),y)
+ifeq ($(CONFIG_FUNCTION_TRACER),y)
KBUILD_CFLAGS += -mno-sched-epilog
endif
#ifndef _ASM_POWERPC_FTRACE
#define _ASM_POWERPC_FTRACE
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
#define MCOUNT_ADDR ((long)(_mcount))
#define MCOUNT_INSN_SIZE 4 /* sizeof mcount call */
CFLAGS_btext.o += -fPIC
endif
-ifdef CONFIG_FTRACE
+ifdef CONFIG_FUNCTION_TRACER
# Do not trace early boot code
CFLAGS_REMOVE_cputable.o = -pg -mno-sched-epilog
CFLAGS_REMOVE_prom_init.o = -pg -mno-sched-epilog
#endif /* CONFIG_PPC_RTAS */
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
#ifdef CONFIG_DYNAMIC_FTRACE
_GLOBAL(mcount)
_GLOBAL(_mcount)
mtlr r0
blr
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
#ifdef CONFIG_DYNAMIC_FTRACE
_GLOBAL(mcount)
_GLOBAL(_mcount)
#endif
-static unsigned int notrace ftrace_calc_offset(long ip, long addr)
+static unsigned int ftrace_calc_offset(long ip, long addr)
{
return (int)(addr - ip);
}
-notrace unsigned char *ftrace_nop_replace(void)
+unsigned char *ftrace_nop_replace(void)
{
return (char *)&ftrace_nop;
}
-notrace unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
+unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
{
static unsigned int op;
# define _ASM_PTR " .long "
#endif
-notrace int
+int
ftrace_modify_code(unsigned long ip, unsigned char *old_code,
unsigned char *new_code)
{
return faulted;
}
-notrace int ftrace_update_ftrace_func(ftrace_func_t func)
+int ftrace_update_ftrace_func(ftrace_func_t func)
{
unsigned long ip = (unsigned long)(&ftrace_call);
unsigned char old[MCOUNT_INSN_SIZE], *new;
return ret;
}
-notrace int ftrace_mcount_set(unsigned long *data)
-{
- unsigned long ip = (long)(&mcount_call);
- unsigned long *addr = data;
- unsigned char old[MCOUNT_INSN_SIZE], *new;
-
- /*
- * Replace the mcount stub with a pointer to the
- * ip recorder function.
- */
- memcpy(old, &mcount_call, MCOUNT_INSN_SIZE);
- new = ftrace_call_replace(ip, *addr);
- *addr = ftrace_modify_code(ip, old, new);
-
- return 0;
-}
-
int __init ftrace_dyn_arch_init(void *data)
{
/* This is running in kstop_machine */
EXPORT_SYMBOL(sys_sigreturn);
#endif
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
EXPORT_SYMBOL(_mcount);
#endif
CFLAGS_bootx_init.o += -fPIC
-ifdef CONFIG_FTRACE
+ifdef CONFIG_FUNCTION_TRACER
# Do not trace early boot code
CFLAGS_REMOVE_bootx_init.o = -pg -mno-sched-epilog
endif
Say Y if you are unsure.
config SMALL_STACK
- bool "Use 4kb/8kb for kernel stack instead of 8kb/16kb"
- depends on PACK_STACK && !LOCKDEP
+ bool "Use 8kb for kernel stack instead of 16kb"
+ depends on PACK_STACK && 64BIT && !LOCKDEP
help
If you say Y here and the compiler supports the -mkernel-backchain
- option the kernel will use a smaller kernel stack size. For 31 bit
- the reduced size is 4kb instead of 8kb and for 64 bit it is 8kb
- instead of 16kb. This allows to run more thread on a system and
- reduces the pressure on the memory management for higher order
- page allocations.
+ option the kernel will use a smaller kernel stack size. The reduced
+ size is 8kb instead of 16kb. This allows to run more threads on a
+ system and reduces the pressure on the memory management for higher
+ order page allocations.
Say N if you are unsure.
-
config CHECK_STACK
bool "Detect kernel stack overflow"
help
choice
prompt "IPL method generated into head.S"
depends on IPL
- default IPL_TAPE
+ default IPL_VM
help
Select "tape" if you want to IPL the image from a Tape.
*/
int appldata_register_ops(struct appldata_ops *ops)
{
- if ((ops->size > APPLDATA_MAX_REC_SIZE) || (ops->size < 0))
+ if (ops->size > APPLDATA_MAX_REC_SIZE)
return -EINVAL;
ops->ctl_table = kzalloc(4 * sizeof(struct ctl_table), GFP_KERNEL);
#ifdef __KERNEL__
/* early virtio console setup */
-#ifdef CONFIG_VIRTIO_CONSOLE
+#ifdef CONFIG_S390_GUEST
extern void s390_virtio_console_init(void);
#else
static inline void s390_virtio_console_init(void)
unsigned long asce_bits;
unsigned long asce_limit;
int noexec;
- int pgstes;
+ int has_pgste; /* The mmu context has extended page tables */
+ int alloc_pgste; /* cloned contexts will have extended page tables */
} mm_context_t;
#endif
#ifdef CONFIG_64BIT
mm->context.asce_bits |= _ASCE_TYPE_REGION3;
#endif
- if (current->mm->context.pgstes) {
+ if (current->mm->context.alloc_pgste) {
+ /*
+ * alloc_pgste indicates, that any NEW context will be created
+ * with extended page tables. The old context is unchanged. The
+ * page table allocation and the page table operations will
+ * look at has_pgste to distinguish normal and extended page
+ * tables. The only way to create extended page tables is to
+ * set alloc_pgste and then create a new context (e.g. dup_mm).
+ * The page table allocation is called after init_new_context
+ * and if has_pgste is set, it will create extended page
+ * tables.
+ */
mm->context.noexec = 0;
- mm->context.pgstes = 1;
+ mm->context.has_pgste = 1;
+ mm->context.alloc_pgste = 1;
} else {
mm->context.noexec = s390_noexec;
- mm->context.pgstes = 0;
+ mm->context.has_pgste = 0;
+ mm->context.alloc_pgste = 0;
}
mm->context.asce_limit = STACK_TOP_MAX;
crst_table_init((unsigned long *) mm->pgd, pgd_entry_type(mm));
static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
{
- if (mm->context.pgstes)
+ if (mm->context.has_pgste)
ptep_rcp_copy(ptep);
pte_val(*ptep) = _PAGE_TYPE_EMPTY;
if (mm->context.noexec)
struct page *page;
unsigned int skey;
- if (!mm->context.pgstes)
+ if (!mm->context.has_pgste)
return -EINVAL;
rcp_lock(ptep);
pgste = (unsigned long *) (ptep + PTRS_PER_PTE);
int young;
unsigned long *pgste;
- if (!vma->vm_mm->context.pgstes)
+ if (!vma->vm_mm->context.has_pgste)
return 0;
physpage = pte_val(*ptep) & PAGE_MASK;
pgste = (unsigned long *) (ptep + PTRS_PER_PTE);
static inline void ptep_invalidate(struct mm_struct *mm,
unsigned long address, pte_t *ptep)
{
- if (mm->context.pgstes) {
+ if (mm->context.has_pgste) {
rcp_lock(ptep);
__ptep_ipte(address, ptep);
ptep_rcp_copy(ptep);
* Size of kernel stack for each process
*/
#ifndef __s390x__
-#ifndef __SMALL_STACK
#define THREAD_ORDER 1
#define ASYNC_ORDER 1
-#else
-#define THREAD_ORDER 0
-#define ASYNC_ORDER 0
-#endif
#else /* __s390x__ */
#ifndef __SMALL_STACK
#define THREAD_ORDER 2
return rc;
}
-static ssize_t __ref rescan_store(struct sys_device *dev,
- struct sysdev_attribute *attr,
- const char *buf,
+static ssize_t __ref rescan_store(struct sysdev_class *class, const char *buf,
size_t count)
{
int rc;
rc = smp_rescan_cpus();
return rc ? rc : count;
}
-static SYSDEV_ATTR(rescan, 0200, NULL, rescan_store);
+static SYSDEV_CLASS_ATTR(rescan, 0200, NULL, rescan_store);
#endif /* CONFIG_HOTPLUG_CPU */
-static ssize_t dispatching_show(struct sys_device *dev,
- struct sysdev_attribute *attr,
- char *buf)
+static ssize_t dispatching_show(struct sysdev_class *class, char *buf)
{
ssize_t count;
return count;
}
-static ssize_t dispatching_store(struct sys_device *dev,
- struct sysdev_attribute *attr,
- const char *buf, size_t count)
+static ssize_t dispatching_store(struct sysdev_class *dev, const char *buf,
+ size_t count)
{
int val, rc;
char delim;
put_online_cpus();
return rc ? rc : count;
}
-static SYSDEV_ATTR(dispatching, 0644, dispatching_show, dispatching_store);
+static SYSDEV_CLASS_ATTR(dispatching, 0644, dispatching_show,
+ dispatching_store);
static int __init topology_init(void)
{
register_cpu_notifier(&smp_cpu_nb);
#ifdef CONFIG_HOTPLUG_CPU
- rc = sysfs_create_file(&cpu_sysdev_class.kset.kobj,
- &attr_rescan.attr);
+ rc = sysdev_class_create_file(&cpu_sysdev_class, &attr_rescan);
if (rc)
return rc;
#endif
- rc = sysfs_create_file(&cpu_sysdev_class.kset.kobj,
- &attr_dispatching.attr);
+ rc = sysdev_class_create_file(&cpu_sysdev_class, &attr_dispatching);
if (rc)
return rc;
for_each_present_cpu(cpu) {
unsigned long *table;
unsigned long bits;
- bits = (mm->context.noexec || mm->context.pgstes) ? 3UL : 1UL;
+ bits = (mm->context.noexec || mm->context.has_pgste) ? 3UL : 1UL;
spin_lock(&mm->page_table_lock);
page = NULL;
if (!list_empty(&mm->context.pgtable_list)) {
pgtable_page_ctor(page);
page->flags &= ~FRAG_MASK;
table = (unsigned long *) page_to_phys(page);
- if (mm->context.pgstes)
+ if (mm->context.has_pgste)
clear_table_pgstes(table);
else
clear_table(table, _PAGE_TYPE_EMPTY, PAGE_SIZE);
struct page *page;
unsigned long bits;
- bits = (mm->context.noexec || mm->context.pgstes) ? 3UL : 1UL;
+ bits = (mm->context.noexec || mm->context.has_pgste) ? 3UL : 1UL;
bits <<= (__pa(table) & (PAGE_SIZE - 1)) / 256 / sizeof(unsigned long);
page = pfn_to_page(__pa(table) >> PAGE_SHIFT);
spin_lock(&mm->page_table_lock);
struct mm_struct *mm, *old_mm;
/* Do we have pgstes? if yes, we are done */
- if (tsk->mm->context.pgstes)
+ if (tsk->mm->context.has_pgste)
return 0;
/* lets check if we are allowed to replace the mm */
}
task_unlock(tsk);
- /* we copy the mm with pgstes enabled */
- tsk->mm->context.pgstes = 1;
+ /* we copy the mm and let dup_mm create the page tables with_pgstes */
+ tsk->mm->context.alloc_pgste = 1;
mm = dup_mm(tsk);
- tsk->mm->context.pgstes = 0;
+ tsk->mm->context.alloc_pgste = 0;
if (!mm)
return -ENOMEM;
- /* Now lets check again if somebody attached ptrace etc */
+ /* Now lets check again if something happened */
task_lock(tsk);
if (!tsk->mm || atomic_read(&tsk->mm->mm_users) > 1 ||
tsk->mm != tsk->active_mm || tsk->mm->ioctx_list) {
config SPARC64
bool
default y
- select HAVE_DYNAMIC_FTRACE
- select HAVE_FTRACE
+ select HAVE_FUNCTION_TRACER
select HAVE_IDE
select HAVE_LMB
select HAVE_ARCH_KGDB
config MCOUNT
bool
- depends on STACK_DEBUG || FTRACE
+ depends on STACK_DEBUG || FUNCTION_TRACER
default y
config FRAME_POINTER
EXTRA_AFLAGS := -ansi
EXTRA_CFLAGS := -Werror
+CFLAGS_REMOVE_ftrace.o = -pg
+
extra-y := head.o init_task.o vmlinux.lds
obj-y := process.o setup.o cpu.o idprom.o reboot.o \
static const u32 ftrace_nop = 0x01000000;
-notrace unsigned char *ftrace_nop_replace(void)
+unsigned char *ftrace_nop_replace(void)
{
return (char *)&ftrace_nop;
}
-notrace unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
+unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
{
static u32 call;
s32 off;
return (unsigned char *) &call;
}
-notrace int
+int
ftrace_modify_code(unsigned long ip, unsigned char *old_code,
unsigned char *new_code)
{
return faulted;
}
-notrace int ftrace_update_ftrace_func(ftrace_func_t func)
+int ftrace_update_ftrace_func(ftrace_func_t func)
{
unsigned long ip = (unsigned long)(&ftrace_call);
unsigned char old[MCOUNT_INSN_SIZE], *new;
return ftrace_modify_code(ip, old, new);
}
-notrace int ftrace_mcount_set(unsigned long *data)
-{
- unsigned long ip = (long)(&mcount_call);
- unsigned long *addr = data;
- unsigned char old[MCOUNT_INSN_SIZE], *new;
-
- /*
- * Replace the mcount stub with a pointer to the
- * ip recorder function.
- */
- memcpy(old, &mcount_call, MCOUNT_INSN_SIZE);
- new = ftrace_call_replace(ip, *addr);
- *addr = ftrace_modify_code(ip, old, new);
-
- return 0;
-}
-
-
int __init ftrace_dyn_arch_init(void *data)
{
ftrace_mcount_set(data);
nop
1:
#endif
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
#ifdef CONFIG_DYNAMIC_FTRACE
mov %o7, %o0
.globl mcount_call
.size _mcount,.-_mcount
.size mcount,.-mcount
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
.globl ftrace_stub
.type ftrace_stub,#function
ftrace_stub:
select HAVE_KRETPROBES
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_DYNAMIC_FTRACE
- select HAVE_FTRACE
+ select HAVE_FUNCTION_TRACER
select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64)
select HAVE_ARCH_KGDB if !X86_VOYAGER
select HAVE_ARCH_TRACEHOOK
If you don't know what to do here, say N.
+config X86_HAS_BOOT_CPU_ID
+ def_bool y
+ depends on X86_VOYAGER
+
config X86_FIND_SMP_CONFIG
def_bool y
depends on X86_MPPARSE || X86_VOYAGER
If unsure, say N.
config X86_DS
- bool "Debug Store support"
- default y
- help
- Add support for Debug Store.
- This allows the kernel to provide a memory buffer to the hardware
- to store various profiling and tracing events.
+ def_bool X86_PTRACE_BTS
+ depends on X86_DEBUGCTLMSR
config X86_PTRACE_BTS
- bool "ptrace interface to Branch Trace Store"
+ bool "Branch Trace Store"
default y
- depends on (X86_DS && X86_DEBUGCTLMSR)
+ depends on X86_DEBUGCTLMSR
help
- Add a ptrace interface to allow collecting an execution trace
- of the traced task.
- This collects control flow changes in a (cyclic) buffer and allows
- debuggers to fill in the gaps and show an execution trace of the debuggee.
+ This adds a ptrace interface to the hardware's branch trace store.
+
+ Debuggers may use it to collect an execution trace of the debugged
+ application in order to answer the question 'how did I get here?'.
+ Debuggers may trace user mode as well as kernel mode.
+
+ Say Y unless there is no application development on this machine
+ and you want to save a small amount of code size.
relocs
+vmlinux.bin.all
+vmlinux.relocs
static inline gfp_t dma_alloc_coherent_gfp_flags(struct device *dev, gfp_t gfp)
{
-#ifdef CONFIG_X86_64
unsigned long dma_mask = dma_alloc_coherent_mask(dev, gfp);
+ if (dma_mask <= DMA_24BIT_MASK)
+ gfp |= GFP_DMA;
+#ifdef CONFIG_X86_64
if (dma_mask <= DMA_32BIT_MASK && !(gfp & GFP_DMA))
gfp |= GFP_DMA32;
#endif
{
}
-#if APIC_DEBUG
- #define inquire_remote_apic(apicid) __inquire_remote_apic(apicid)
-#else
- #define inquire_remote_apic(apicid) {}
-#endif
+#define inquire_remote_apic(apicid) do { \
+ if (apic_verbosity >= APIC_DEBUG) \
+ __inquire_remote_apic(apicid); \
+ } while (0)
#endif /* __ASM_MACH_WAKECPU_H */
#ifndef _ASM_X86_FTRACE_H
#define _ASM_X86_FTRACE_H
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
#define MCOUNT_ADDR ((long)(mcount))
#define MCOUNT_INSN_SIZE 5 /* sizeof mcount call */
}
#endif
-#endif /* CONFIG_FTRACE */
+#endif /* CONFIG_FUNCTION_TRACER */
#endif /* _ASM_X86_FTRACE_H */
extern void early_ioremap_init(void);
extern void early_ioremap_clear(void);
extern void early_ioremap_reset(void);
-extern void *early_ioremap(unsigned long offset, unsigned long size);
-extern void *early_memremap(unsigned long offset, unsigned long size);
-extern void early_iounmap(void *addr, unsigned long size);
+extern void __iomem *early_ioremap(unsigned long offset, unsigned long size);
+extern void __iomem *early_memremap(unsigned long offset, unsigned long size);
+extern void early_iounmap(void __iomem *addr, unsigned long size);
extern void __iomem *fix_ioremap(unsigned idx, unsigned long phys);
extern int force_iommu, no_iommu;
extern int iommu_detected;
extern int dmar_disabled;
-extern int forbid_dac;
extern unsigned long iommu_nr_pages(unsigned long addr, unsigned long len);
struct page *ept_identity_pagetable;
bool ept_identity_pagetable_done;
+
+ unsigned long irq_sources_bitmap;
+ unsigned long irq_states[KVM_IOAPIC_NUM_PINS];
};
struct kvm_vm_stat {
{
}
-#if APIC_DEBUG
- #define inquire_remote_apic(apicid) __inquire_remote_apic(apicid)
-#else
- #define inquire_remote_apic(apicid) {}
-#endif
+#define inquire_remote_apic(apicid) do { \
+ if (apic_verbosity >= APIC_DEBUG) \
+ __inquire_remote_apic(apicid); \
+ } while (0)
#endif /* _ASM_X86_MACH_DEFAULT_MACH_WAKECPU_H */
write_cr3(pgd);
}
-#define pud_page(pud) ((struct page *) __va(pud_val(pud) & PTE_PFN_MASK))
+#define pud_page(pud) pfn_to_page(pud_val(pud) >> PAGE_SHIFT)
#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & PTE_PFN_MASK))
/* Find an entry in the second-level page table.. */
-#define pmd_offset(pud, address) ((pmd_t *)pud_page(*(pud)) + \
+#define pmd_offset(pud, address) ((pmd_t *)pud_page_vaddr(*(pud)) + \
pmd_index(address))
#ifdef CONFIG_SMP
#endif /* CONFIG_X86_LOCAL_APIC */
+#ifdef CONFIG_X86_HAS_BOOT_CPU_ID
+extern unsigned char boot_cpu_id;
+#else
+#define boot_cpu_id 0
+#endif
+
#endif /* __ASSEMBLY__ */
#endif /* _ASM_X86_SMP_H */
#include <linux/numa.h>
#include <linux/percpu.h>
+#include <linux/timer.h>
#include <asm/types.h>
#include <asm/percpu.h>
CPPFLAGS_vmlinux.lds += -U$(UTS_MACHINE)
-ifdef CONFIG_FTRACE
+ifdef CONFIG_FUNCTION_TRACER
# Do not profile debug and lowlevel utilities
CFLAGS_REMOVE_tsc.o = -pg
CFLAGS_REMOVE_rtc.o = -pg
CFLAGS_REMOVE_paravirt-spinlocks.o = -pg
+CFLAGS_REMOVE_ftrace.o = -pg
endif
#
*/
void __cpuinit detect_extended_topology(struct cpuinfo_x86 *c)
{
-#ifdef CONFIG_SMP
+#ifdef CONFIG_X86_SMP
unsigned int eax, ebx, ecx, edx, sub_index;
unsigned int ht_mask_width, core_plus_mask_width;
unsigned int core_select_mask, core_level_siblings;
this_cpu->c_early_init(c);
validate_pat_support(c);
+
+#ifdef CONFIG_SMP
+ c->cpu_index = boot_cpu_id;
+#endif
}
void __init early_cpu_init(void)
/*
* Boot processor to setup the FP and extended state context info.
*/
- if (!smp_processor_id())
+ if (smp_processor_id() == boot_cpu_id)
init_thread_xstate();
xsave_init();
#endif /* CONFIG_XEN */
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
#ifdef CONFIG_DYNAMIC_FTRACE
ENTRY(mcount)
jmp ftrace_stub
END(mcount)
#endif /* CONFIG_DYNAMIC_FTRACE */
-#endif /* CONFIG_FTRACE */
+#endif /* CONFIG_FUNCTION_TRACER */
.section .rodata,"a"
#include "syscall_table_32.S"
.code64
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
#ifdef CONFIG_DYNAMIC_FTRACE
ENTRY(mcount)
retq
jmp ftrace_stub
END(mcount)
#endif /* CONFIG_DYNAMIC_FTRACE */
-#endif /* CONFIG_FTRACE */
+#endif /* CONFIG_FUNCTION_TRACER */
#ifndef CONFIG_PREEMPT
#define retint_kernel retint_restore_args
#include <asm/nops.h>
-/* Long is fine, even if it is only 4 bytes ;-) */
-static unsigned long *ftrace_nop;
+static unsigned char ftrace_nop[MCOUNT_INSN_SIZE];
union ftrace_code_union {
char code[MCOUNT_INSN_SIZE];
};
-static int notrace ftrace_calc_offset(long ip, long addr)
+static int ftrace_calc_offset(long ip, long addr)
{
return (int)(addr - ip);
}
-notrace unsigned char *ftrace_nop_replace(void)
+unsigned char *ftrace_nop_replace(void)
{
- return (char *)ftrace_nop;
+ return ftrace_nop;
}
-notrace unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
+unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
{
static union ftrace_code_union calc;
return calc.code;
}
-notrace int
+int
ftrace_modify_code(unsigned long ip, unsigned char *old_code,
unsigned char *new_code)
{
/*
* Note: Due to modules and __init, code can
* disappear and change, we need to protect against faulting
- * as well as code changing.
+ * as well as code changing. We do this by using the
+ * probe_kernel_* functions.
*
* No real locking needed, this code is run through
* kstop_machine, or before SMP starts.
*/
- if (__copy_from_user_inatomic(replaced, (char __user *)ip, MCOUNT_INSN_SIZE))
- return 1;
+ /* read the text we want to modify */
+ if (probe_kernel_read(replaced, (void *)ip, MCOUNT_INSN_SIZE))
+ return -EFAULT;
+
+ /* Make sure it is what we expect it to be */
if (memcmp(replaced, old_code, MCOUNT_INSN_SIZE) != 0)
- return 2;
+ return -EINVAL;
- WARN_ON_ONCE(__copy_to_user_inatomic((char __user *)ip, new_code,
- MCOUNT_INSN_SIZE));
+ /* replace the text with the new text */
+ if (probe_kernel_write((void *)ip, new_code, MCOUNT_INSN_SIZE))
+ return -EPERM;
sync_core();
return 0;
}
-notrace int ftrace_update_ftrace_func(ftrace_func_t func)
+int ftrace_update_ftrace_func(ftrace_func_t func)
{
unsigned long ip = (unsigned long)(&ftrace_call);
unsigned char old[MCOUNT_INSN_SIZE], *new;
return ret;
}
-notrace int ftrace_mcount_set(unsigned long *data)
-{
- /* mcount is initialized as a nop */
- *data = 0;
- return 0;
-}
-
int __init ftrace_dyn_arch_init(void *data)
{
extern const unsigned char ftrace_test_p6nop[];
* TODO: check the cpuid to determine the best nop.
*/
asm volatile (
- "jmp ftrace_test_jmp\n"
- /* This code needs to stay around */
- ".section .text, \"ax\"\n"
"ftrace_test_jmp:"
"jmp ftrace_test_p6nop\n"
"nop\n"
"jmp 1f\n"
"ftrace_test_nop5:"
".byte 0x66,0x66,0x66,0x66,0x90\n"
- "jmp 1f\n"
- ".previous\n"
"1:"
".section .fixup, \"ax\"\n"
"2: movl $1, %0\n"
switch (faulted) {
case 0:
pr_info("ftrace: converting mcount calls to 0f 1f 44 00 00\n");
- ftrace_nop = (unsigned long *)ftrace_test_p6nop;
+ memcpy(ftrace_nop, ftrace_test_p6nop, MCOUNT_INSN_SIZE);
break;
case 1:
pr_info("ftrace: converting mcount calls to 66 66 66 66 90\n");
- ftrace_nop = (unsigned long *)ftrace_test_nop5;
+ memcpy(ftrace_nop, ftrace_test_nop5, MCOUNT_INSN_SIZE);
break;
case 2:
pr_info("ftrace: converting mcount calls to jmp . + 5\n");
- ftrace_nop = (unsigned long *)ftrace_test_jmp;
+ memcpy(ftrace_nop, ftrace_test_jmp, MCOUNT_INSN_SIZE);
break;
}
#include <linux/ctype.h>
#include <linux/init.h>
#include <linux/sched.h>
-#include <linux/bootmem.h>
#include <linux/module.h>
#include <linux/hardirq.h>
#include <asm/smp.h>
printk(KERN_DEBUG "UV: Found %d blades\n", uv_num_possible_blades());
bytes = sizeof(struct uv_blade_info) * uv_num_possible_blades();
- uv_blade_info = alloc_bootmem_pages(bytes);
+ uv_blade_info = kmalloc(bytes, GFP_KERNEL);
get_lowmem_redirect(&lowmem_redir_base, &lowmem_redir_size);
bytes = sizeof(uv_node_to_blade[0]) * num_possible_nodes();
- uv_node_to_blade = alloc_bootmem_pages(bytes);
+ uv_node_to_blade = kmalloc(bytes, GFP_KERNEL);
memset(uv_node_to_blade, 255, bytes);
bytes = sizeof(uv_cpu_to_blade[0]) * num_possible_cpus();
- uv_cpu_to_blade = alloc_bootmem_pages(bytes);
+ uv_cpu_to_blade = kmalloc(bytes, GFP_KERNEL);
memset(uv_cpu_to_blade, 255, bytes);
blade = 0;
#include <asm/desc.h>
#include <asm/ftrace.h>
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
/* mcount is defined in assembly */
EXPORT_SYMBOL(mcount);
#endif
struct pci_device_id k8_nb_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB_MISC) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_10H_NB_MISC) },
- { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_11H_NB_MISC) },
{}
};
EXPORT_SYMBOL(k8_nb_ids);
page_list[VA_PTE_0] = (unsigned long)kexec_pte0;
page_list[PA_PTE_1] = __pa(kexec_pte1);
page_list[VA_PTE_1] = (unsigned long)kexec_pte1;
- page_list[PA_SWAP_PAGE] = (page_to_pfn(image->swap_page) << PAGE_SHIFT);
+
+ if (image->type == KEXEC_TYPE_DEFAULT)
+ page_list[PA_SWAP_PAGE] = (page_to_pfn(image->swap_page)
+ << PAGE_SHIFT);
/* The segment registers are funny things, they have both a
* visible and an invisible part. Whenever the visible part is
#include <asm/microcode.h>
MODULE_DESCRIPTION("AMD Microcode Update Driver");
-MODULE_AUTHOR("Peter Oruba <peter.oruba@amd.com>");
+MODULE_AUTHOR("Peter Oruba");
MODULE_LICENSE("GPL v2");
#define UCODE_MAGIC 0x00414d44
printk(KERN_INFO
"Microcode Update Driver: v" MICROCODE_VERSION
- " <tigran@aivazian.fsnet.co.uk>"
- " <peter.oruba@amd.com>\n");
+ " <tigran@aivazian.fsnet.co.uk>,"
+ " Peter Oruba\n");
return 0;
}
#include <asm/calgary.h>
#include <asm/amd_iommu.h>
+static int forbid_dac __read_mostly;
+
struct dma_mapping_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
}
/* Must execute after PCI subsystem */
fs_initcall(pci_iommu_init);
+
+#ifdef CONFIG_PCI
+/* Many VIA bridges seem to corrupt data for DAC. Disable it here */
+
+static __devinit void via_no_dac(struct pci_dev *dev)
+{
+ if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && forbid_dac == 0) {
+ printk(KERN_INFO "PCI: VIA PCI bridge detected."
+ "Disabling DAC.\n");
+ forbid_dac = 1;
+ }
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_ANY_ID, via_no_dac);
+#endif
long i;
if (cache_k8_northbridges() < 0 || num_k8_northbridges == 0) {
- printk(KERN_INFO "PCI-GART: No AMD northbridge found.\n");
+ printk(KERN_INFO "PCI-GART: No AMD GART found.\n");
return;
}
return swiotlb_map_single(hwdev, phys_to_virt(paddr), size, direction);
}
+static void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
+ dma_addr_t *dma_handle, gfp_t flags)
+{
+ void *vaddr;
+
+ vaddr = dma_generic_alloc_coherent(hwdev, size, dma_handle, flags);
+ if (vaddr)
+ return vaddr;
+
+ return swiotlb_alloc_coherent(hwdev, size, dma_handle, flags);
+}
+
struct dma_mapping_ops swiotlb_dma_ops = {
.mapping_error = swiotlb_dma_mapping_error,
- .alloc_coherent = swiotlb_alloc_coherent,
+ .alloc_coherent = x86_swiotlb_alloc_coherent,
.free_coherent = swiotlb_free_coherent,
.map_single = swiotlb_map_single_phys,
.unmap_single = swiotlb_unmap_single,
if (!cpu_has_tsc || tsc_unstable)
return 1;
-#ifdef CONFIG_SMP
+#ifdef CONFIG_X86_SMP
if (apic_is_clustered_box())
return 1;
#endif
static void __init set_vsmp_pv_ops(void)
{
- void *address;
+ void __iomem *address;
unsigned int cap, ctl, cfg;
/* set vSMP magic bits to indicate vSMP capable kernel */
#include <asm/desc.h>
#include <asm/ftrace.h>
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
/* mcount is defined in assembly */
EXPORT_SYMBOL(mcount);
#endif
if (!pit)
return NULL;
+ mutex_lock(&kvm->lock);
+ pit->irq_source_id = kvm_request_irq_source_id(kvm);
+ mutex_unlock(&kvm->lock);
+ if (pit->irq_source_id < 0)
+ return NULL;
+
mutex_init(&pit->pit_state.lock);
mutex_lock(&pit->pit_state.lock);
spin_lock_init(&pit->pit_state.inject_lock);
mutex_lock(&kvm->arch.vpit->pit_state.lock);
timer = &kvm->arch.vpit->pit_state.pit_timer.timer;
hrtimer_cancel(timer);
+ kvm_free_irq_source_id(kvm, kvm->arch.vpit->irq_source_id);
mutex_unlock(&kvm->arch.vpit->pit_state.lock);
kfree(kvm->arch.vpit);
}
static void __inject_pit_timer_intr(struct kvm *kvm)
{
mutex_lock(&kvm->lock);
- kvm_set_irq(kvm, 0, 1);
- kvm_set_irq(kvm, 0, 0);
+ kvm_set_irq(kvm, kvm->arch.vpit->irq_source_id, 0, 1);
+ kvm_set_irq(kvm, kvm->arch.vpit->irq_source_id, 0, 0);
mutex_unlock(&kvm->lock);
}
struct kvm_io_device speaker_dev;
struct kvm *kvm;
struct kvm_kpit_state pit_state;
+ int irq_source_id;
};
#define KVM_PIT_BASE_ADDRESS 0x40
static int kvm_pv_mmu_flush_tlb(struct kvm_vcpu *vcpu)
{
kvm_x86_ops->tlb_flush(vcpu);
+ set_bit(KVM_REQ_MMU_SYNC, &vcpu->requests);
return 1;
}
goto out;
if (irqchip_in_kernel(kvm)) {
mutex_lock(&kvm->lock);
- kvm_set_irq(kvm, irq_event.irq, irq_event.level);
+ kvm_set_irq(kvm, KVM_USERSPACE_IRQ_SOURCE_ID,
+ irq_event.irq, irq_event.level);
mutex_unlock(&kvm->lock);
r = 0;
}
INIT_LIST_HEAD(&kvm->arch.active_mmu_pages);
INIT_LIST_HEAD(&kvm->arch.assigned_dev_head);
+ /* Reserve bit 0 of irq_sources_bitmap for userspace irq source */
+ set_bit(KVM_USERSPACE_IRQ_SOURCE_ID, &kvm->arch.irq_sources_bitmap);
+
return kvm;
}
* lazily after a task switch, and Linux uses that gratefully, but wouldn't a
* name like "FPUTRAP bit" be a little less cryptic?
*
- * We store cr0 (and cr3) locally, because the Host never changes it. The
- * Guest sometimes wants to read it and we'd prefer not to bother the Host
- * unnecessarily. */
-static unsigned long current_cr0, current_cr3;
+ * We store cr0 locally because the Host never changes it. The Guest sometimes
+ * wants to read it and we'd prefer not to bother the Host unnecessarily. */
+static unsigned long current_cr0;
static void lguest_write_cr0(unsigned long val)
{
lazy_hcall(LHCALL_TS, val & X86_CR0_TS, 0, 0);
return lguest_data.cr2;
}
+/* See lguest_set_pte() below. */
+static bool cr3_changed = false;
+
/* cr3 is the current toplevel pagetable page: the principle is the same as
- * cr0. Keep a local copy, and tell the Host when it changes. */
+ * cr0. Keep a local copy, and tell the Host when it changes. The only
+ * difference is that our local copy is in lguest_data because the Host needs
+ * to set it upon our initial hypercall. */
static void lguest_write_cr3(unsigned long cr3)
{
+ lguest_data.pgdir = cr3;
lazy_hcall(LHCALL_NEW_PGTABLE, cr3, 0, 0);
- current_cr3 = cr3;
+ cr3_changed = true;
}
static unsigned long lguest_read_cr3(void)
{
- return current_cr3;
+ return lguest_data.pgdir;
}
/* cr4 is used to enable and disable PGE, but we don't care. */
* to forget all of them. Fortunately, this is very rare.
*
* ... except in early boot when the kernel sets up the initial pagetables,
- * which makes booting astonishingly slow. So we don't even tell the Host
- * anything changed until we've done the first page table switch. */
+ * which makes booting astonishingly slow: 1.83 seconds! So we don't even tell
+ * the Host anything changed until we've done the first page table switch,
+ * which brings boot back to 0.25 seconds. */
static void lguest_set_pte(pte_t *ptep, pte_t pteval)
{
*ptep = pteval;
- /* Don't bother with hypercall before initial setup. */
- if (current_cr3)
+ if (cr3_changed)
lazy_hcall(LHCALL_FLUSH_TLB, 1, 0, 0);
}
static void lguest_flush_tlb_single(unsigned long addr)
{
/* Simply set it to zero: if it was not, it will fault back in. */
- lazy_hcall(LHCALL_SET_PTE, current_cr3, addr, 0);
+ lazy_hcall(LHCALL_SET_PTE, lguest_data.pgdir, addr, 0);
}
/* This is what happens after the Guest has removed a large number of entries.
for (i = 0; i < LGUEST_IRQS; i++) {
int vector = FIRST_EXTERNAL_VECTOR + i;
+ /* Some systems map "vectors" to interrupts weirdly. Lguest has
+ * a straightforward 1 to 1 mapping, so force that here. */
+ __get_cpu_var(vector_irq)[vector] = i;
if (vector != SYSCALL_VECTOR) {
set_intr_gate(vector, interrupt[vector]);
set_irq_chip_and_handler_name(i, &lguest_irq_controller,
static void vic_enable_cpi(void);
static void do_boot_cpu(__u8 cpuid);
static void do_quad_bootstrap(void);
+static void initialize_secondary(void);
int hard_smp_processor_id(void);
int safe_smp_processor_id(void);
}
}
+void prefill_possible_map(void)
+{
+ /* This is empty on voyager because we need a much
+ * earlier detection which is done in find_smp_config */
+}
+
/* Set up all the basic stuff: read the SMP config and make all the
* SMP information reflect only the boot cpu. All others will be
* brought on-line later. */
struct cpuinfo_x86 *c = &cpu_data(id);
*c = boot_cpu_data;
+ c->cpu_index = id;
identify_secondary_cpu(c);
}
smp_tune_scheduling();
*/
smp_store_cpu_info(boot_cpu_id);
+ /* setup the jump vector */
+ initial_code = (unsigned long)initialize_secondary;
printk("CPU%d: ", boot_cpu_id);
print_cpu_info(&cpu_data(boot_cpu_id));
/* Reload the secondary CPUs task structure (this function does not
* return ) */
-void __init initialize_secondary(void)
+static void __init initialize_secondary(void)
{
#if 0
// AC kernels only
len = (unsigned long) nr_pages << PAGE_SHIFT;
end = start + len;
if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ,
- start, len)))
+ (void __user *)start, len)))
goto slow_irqon;
/*
* pagetable pages as RO. So assume someone who pre-setup
* these mappings are more intelligent.
*/
- if (pte_val(*pte))
+ if (pte_val(*pte)) {
+ pages++;
continue;
+ }
if (0)
printk(" pte=%p addr=%lx pte=%016lx\n",
* not differ with respect to page frame and
* attributes.
*/
- if (page_size_mask & (1 << PG_LEVEL_2M))
+ if (page_size_mask & (1 << PG_LEVEL_2M)) {
+ pages++;
continue;
+ }
new_prot = pte_pgprot(pte_clrhuge(*(pte_t *)pmd));
}
* not differ with respect to page frame and
* attributes.
*/
- if (page_size_mask & (1 << PG_LEVEL_1G))
+ if (page_size_mask & (1 << PG_LEVEL_1G)) {
+ pages++;
continue;
+ }
prot = pte_pgprot(pte_clrhuge(*(pte_t *)pud));
}
unsigned long last_map_addr = 0;
unsigned long page_size_mask = 0;
unsigned long start_pfn, end_pfn;
+ unsigned long pos;
struct map_range mr[NR_RANGE_MR];
int nr_range, i;
int use_pse, use_gbpages;
- printk(KERN_INFO "init_memory_mapping\n");
+ printk(KERN_INFO "init_memory_mapping: %016lx-%016lx\n", start, end);
/*
* Find space for the kernel direct mapping tables.
/* head if not big page alignment ?*/
start_pfn = start >> PAGE_SHIFT;
- end_pfn = ((start + (PMD_SIZE - 1)) >> PMD_SHIFT)
+ pos = start_pfn << PAGE_SHIFT;
+ end_pfn = ((pos + (PMD_SIZE - 1)) >> PMD_SHIFT)
<< (PMD_SHIFT - PAGE_SHIFT);
- nr_range = save_mr(mr, nr_range, start_pfn, end_pfn, 0);
+ if (start_pfn < end_pfn) {
+ nr_range = save_mr(mr, nr_range, start_pfn, end_pfn, 0);
+ pos = end_pfn << PAGE_SHIFT;
+ }
/* big page (2M) range*/
- start_pfn = ((start + (PMD_SIZE - 1))>>PMD_SHIFT)
+ start_pfn = ((pos + (PMD_SIZE - 1))>>PMD_SHIFT)
<< (PMD_SHIFT - PAGE_SHIFT);
- end_pfn = ((start + (PUD_SIZE - 1))>>PUD_SHIFT)
+ end_pfn = ((pos + (PUD_SIZE - 1))>>PUD_SHIFT)
<< (PUD_SHIFT - PAGE_SHIFT);
- if (end_pfn > ((end>>PUD_SHIFT)<<(PUD_SHIFT - PAGE_SHIFT)))
- end_pfn = ((end>>PUD_SHIFT)<<(PUD_SHIFT - PAGE_SHIFT));
- nr_range = save_mr(mr, nr_range, start_pfn, end_pfn,
- page_size_mask & (1<<PG_LEVEL_2M));
+ if (end_pfn > ((end>>PMD_SHIFT)<<(PMD_SHIFT - PAGE_SHIFT)))
+ end_pfn = ((end>>PMD_SHIFT)<<(PMD_SHIFT - PAGE_SHIFT));
+ if (start_pfn < end_pfn) {
+ nr_range = save_mr(mr, nr_range, start_pfn, end_pfn,
+ page_size_mask & (1<<PG_LEVEL_2M));
+ pos = end_pfn << PAGE_SHIFT;
+ }
/* big page (1G) range */
- start_pfn = end_pfn;
- end_pfn = (end>>PUD_SHIFT) << (PUD_SHIFT - PAGE_SHIFT);
- nr_range = save_mr(mr, nr_range, start_pfn, end_pfn,
+ start_pfn = ((pos + (PUD_SIZE - 1))>>PUD_SHIFT)
+ << (PUD_SHIFT - PAGE_SHIFT);
+ end_pfn = (end >> PUD_SHIFT) << (PUD_SHIFT - PAGE_SHIFT);
+ if (start_pfn < end_pfn) {
+ nr_range = save_mr(mr, nr_range, start_pfn, end_pfn,
page_size_mask &
((1<<PG_LEVEL_2M)|(1<<PG_LEVEL_1G)));
+ pos = end_pfn << PAGE_SHIFT;
+ }
/* tail is not big page (1G) alignment */
- start_pfn = end_pfn;
- end_pfn = (end>>PMD_SHIFT) << (PMD_SHIFT - PAGE_SHIFT);
- nr_range = save_mr(mr, nr_range, start_pfn, end_pfn,
- page_size_mask & (1<<PG_LEVEL_2M));
+ start_pfn = ((pos + (PMD_SIZE - 1))>>PMD_SHIFT)
+ << (PMD_SHIFT - PAGE_SHIFT);
+ end_pfn = (end >> PMD_SHIFT) << (PMD_SHIFT - PAGE_SHIFT);
+ if (start_pfn < end_pfn) {
+ nr_range = save_mr(mr, nr_range, start_pfn, end_pfn,
+ page_size_mask & (1<<PG_LEVEL_2M));
+ pos = end_pfn << PAGE_SHIFT;
+ }
/* tail is not big page (2M) alignment */
- start_pfn = end_pfn;
+ start_pfn = pos>>PAGE_SHIFT;
end_pfn = end>>PAGE_SHIFT;
nr_range = save_mr(mr, nr_range, start_pfn, end_pfn, 0);
unsigned long nr_pages = size >> PAGE_SHIFT;
int ret;
- last_mapped_pfn = init_memory_mapping(start, start + size-1);
+ last_mapped_pfn = init_memory_mapping(start, start + size);
if (last_mapped_pfn > max_pfn_mapped)
max_pfn_mapped = last_mapped_pfn;
ret = __add_pages(zone, start_pfn, nr_pages);
- WARN_ON(1);
+ WARN_ON_ONCE(ret);
return ret;
}
void __init mem_init(void)
{
long codesize, reservedpages, datasize, initsize;
+ unsigned long absent_pages;
start_periodic_check_for_corruption();
#else
totalram_pages = free_all_bootmem();
#endif
- reservedpages = max_pfn - totalram_pages -
- absent_pages_in_range(0, max_pfn);
+
+ absent_pages = absent_pages_in_range(0, max_pfn);
+ reservedpages = max_pfn - totalram_pages - absent_pages;
after_bootmem = 1;
codesize = (unsigned long) &_etext - (unsigned long) &_text;
VSYSCALL_END - VSYSCALL_START);
printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, "
- "%ldk reserved, %ldk data, %ldk init)\n",
+ "%ldk absent, %ldk reserved, %ldk data, %ldk init)\n",
(unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
max_pfn << (PAGE_SHIFT-10),
codesize >> 10,
+ absent_pages << (PAGE_SHIFT-10),
reservedpages << (PAGE_SHIFT-10),
datasize >> 10,
initsize >> 10);
unsigned long size)
{
unsigned long flags;
- void *ret;
+ void __iomem *ret;
int err;
/*
if (err < 0)
return NULL;
- ret = (void *) __ioremap_caller(phys_addr, size, flags,
- __builtin_return_address(0));
+ ret = __ioremap_caller(phys_addr, size, flags,
+ __builtin_return_address(0));
free_memtype(phys_addr, phys_addr + size);
- return (void __iomem *)ret;
+ return ret;
}
void __iomem *ioremap_prot(resource_size_t phys_addr, unsigned long size,
__early_set_fixmap(idx, 0, __pgprot(0));
}
-static void *prev_map[FIX_BTMAPS_SLOTS] __initdata;
+static void __iomem *prev_map[FIX_BTMAPS_SLOTS] __initdata;
static unsigned long prev_size[FIX_BTMAPS_SLOTS] __initdata;
static int __init check_early_ioremap_leak(void)
{
}
late_initcall(check_early_ioremap_leak);
-static void __init *__early_ioremap(unsigned long phys_addr, unsigned long size, pgprot_t prot)
+static void __init __iomem *__early_ioremap(unsigned long phys_addr, unsigned long size, pgprot_t prot)
{
unsigned long offset, last_addr;
unsigned int nrpages;
if (early_ioremap_debug)
printk(KERN_CONT "%08lx + %08lx\n", offset, fix_to_virt(idx0));
- prev_map[slot] = (void *) (offset + fix_to_virt(idx0));
+ prev_map[slot] = (void __iomem *)(offset + fix_to_virt(idx0));
return prev_map[slot];
}
/* Remap an IO device */
-void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
+void __init __iomem *early_ioremap(unsigned long phys_addr, unsigned long size)
{
return __early_ioremap(phys_addr, size, PAGE_KERNEL_IO);
}
/* Remap memory */
-void __init *early_memremap(unsigned long phys_addr, unsigned long size)
+void __init __iomem *early_memremap(unsigned long phys_addr, unsigned long size)
{
return __early_ioremap(phys_addr, size, PAGE_KERNEL);
}
-void __init early_iounmap(void *addr, unsigned long size)
+void __init early_iounmap(void __iomem *addr, unsigned long size)
{
unsigned long virt_addr;
unsigned long offset;
--idx;
--nrpages;
}
- prev_map[slot] = 0;
+ prev_map[slot] = NULL;
}
void __this_fixmap_does_not_exist(void)
return 1;
}
#else
+/* This check is needed to avoid cache aliasing when PAT is enabled */
static inline int range_is_allowed(unsigned long pfn, unsigned long size)
{
u64 from = ((u64)pfn) << PAGE_SHIFT;
u64 to = from + size;
u64 cursor = from;
+ if (!pat_enabled)
+ return 1;
+
while (cursor < to) {
if (!devmem_is_allowed(pfn)) {
printk(KERN_INFO
-ifdef CONFIG_FTRACE
+ifdef CONFIG_FUNCTION_TRACER
# Do not profile debug and lowlevel utilities
CFLAGS_REMOVE_spinlock.o = -pg
CFLAGS_REMOVE_time.o = -pg
{
unsigned long address = (unsigned long)vaddr;
unsigned int level;
- pte_t *pte = lookup_address(address, &level);
- unsigned offset = address & ~PAGE_MASK;
+ pte_t *pte;
+ unsigned offset;
- BUG_ON(pte == NULL);
+ /*
+ * if the PFN is in the linear mapped vaddr range, we can just use
+ * the (quick) virt_to_machine() p2m lookup
+ */
+ if (virt_addr_valid(vaddr))
+ return virt_to_machine(vaddr);
+ /* otherwise we have to do a (slower) full page-table walk */
+
+ pte = lookup_address(address, &level);
+ BUG_ON(pte == NULL);
+ offset = address & ~PAGE_MASK;
return XMADDR(((phys_addr_t)pte_mfn(*pte) << PAGE_SHIFT) + offset);
}
xen_mc_batch();
- u.ptr = virt_to_machine(ptep).maddr | MMU_PT_UPDATE_PRESERVE_AD;
+ u.ptr = arbitrary_virt_to_machine(ptep).maddr | MMU_PT_UPDATE_PRESERVE_AD;
u.val = pte_val_ma(pte);
xen_extend_mmu_update(&u);
source "drivers/mfd/Kconfig"
+source "drivers/regulator/Kconfig"
+
source "drivers/media/Kconfig"
source "drivers/video/Kconfig"
#define DRV_NAME "ahci"
#define DRV_VERSION "3.0"
+/* Enclosure Management Control */
+#define EM_CTRL_MSG_TYPE 0x000f0000
+
+/* Enclosure Management LED Message Type */
+#define EM_MSG_LED_HBA_PORT 0x0000000f
+#define EM_MSG_LED_PMP_SLOT 0x0000ff00
+#define EM_MSG_LED_VALUE 0xffff0000
+#define EM_MSG_LED_VALUE_ACTIVITY 0x00070000
+#define EM_MSG_LED_VALUE_OFF 0xfff80000
+#define EM_MSG_LED_VALUE_ON 0x00010000
+
static int ahci_skip_host_reset;
module_param_named(skip_host_reset, ahci_skip_host_reset, int, 0444);
MODULE_PARM_DESC(skip_host_reset, "skip global host reset (0=don't skip, 1=skip)");
{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */
{ PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv }, /* 6121 */
+ /* Promise */
+ { PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */
+
/* Generic, PCI class code for AHCI */
{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
struct ahci_em_priv *emp = &pp->em_priv[link->pmp];
unsigned long led_message = emp->led_state;
u32 activity_led_state;
+ unsigned long flags;
- led_message &= 0xffff0000;
+ led_message &= EM_MSG_LED_VALUE;
led_message |= ap->port_no | (link->pmp << 8);
/* check to see if we've had activity. If so,
* toggle state of LED and reset timer. If not,
* turn LED to desired idle state.
*/
+ spin_lock_irqsave(ap->lock, flags);
if (emp->saved_activity != emp->activity) {
emp->saved_activity = emp->activity;
/* get the current LED state */
- activity_led_state = led_message & 0x00010000;
+ activity_led_state = led_message & EM_MSG_LED_VALUE_ON;
if (activity_led_state)
activity_led_state = 0;
activity_led_state = 1;
/* clear old state */
- led_message &= 0xfff8ffff;
+ led_message &= ~EM_MSG_LED_VALUE_ACTIVITY;
/* toggle state */
led_message |= (activity_led_state << 16);
mod_timer(&emp->timer, jiffies + msecs_to_jiffies(100));
} else {
/* switch to idle */
- led_message &= 0xfff8ffff;
+ led_message &= ~EM_MSG_LED_VALUE_ACTIVITY;
if (emp->blink_policy == BLINK_OFF)
led_message |= (1 << 16);
}
+ spin_unlock_irqrestore(ap->lock, flags);
ahci_transmit_led_message(ap, led_message, 4);
}
struct ahci_em_priv *emp;
/* get the slot number from the message */
- pmp = (state & 0x0000ff00) >> 8;
+ pmp = (state & EM_MSG_LED_PMP_SLOT) >> 8;
if (pmp < MAX_SLOTS)
emp = &pp->em_priv[pmp];
else
message[0] |= (4 << 8);
/* ignore 0:4 of byte zero, fill in port info yourself */
- message[1] = ((state & 0xfffffff0) | ap->port_no);
+ message[1] = ((state & ~EM_MSG_LED_HBA_PORT) | ap->port_no);
/* write message to EM_LOC */
writel(message[0], mmio + hpriv->em_loc);
state = simple_strtoul(buf, NULL, 0);
/* get the slot number from the message */
- pmp = (state & 0x0000ff00) >> 8;
+ pmp = (state & EM_MSG_LED_PMP_SLOT) >> 8;
if (pmp < MAX_SLOTS)
emp = &pp->em_priv[pmp];
else
* activity led through em_message
*/
if (emp->blink_policy)
- state &= 0xfff8ffff;
+ state &= ~EM_MSG_LED_VALUE_ACTIVITY;
return ahci_transmit_led_message(ap, state, size);
}
link->flags &= ~(ATA_LFLAG_SW_ACTIVITY);
/* set the LED to OFF */
- port_led_state &= 0xfff80000;
+ port_led_state &= EM_MSG_LED_VALUE_OFF;
port_led_state |= (ap->port_no | (link->pmp << 8));
ahci_transmit_led_message(ap, port_led_state, 4);
} else {
link->flags |= ATA_LFLAG_SW_ACTIVITY;
if (val == BLINK_OFF) {
/* set LED to ON for idle */
- port_led_state &= 0xfff80000;
+ port_led_state &= EM_MSG_LED_VALUE_OFF;
port_led_state |= (ap->port_no | (link->pmp << 8));
- port_led_state |= 0x00010000; /* check this */
+ port_led_state |= EM_MSG_LED_VALUE_ON; /* check this */
ahci_transmit_led_message(ap, port_led_state, 4);
}
}
u32 em_loc = readl(mmio + HOST_EM_LOC);
u32 em_ctl = readl(mmio + HOST_EM_CTL);
- messages = (em_ctl & 0x000f0000) >> 16;
+ messages = (em_ctl & EM_CTRL_MSG_TYPE) >> 16;
/* we only support LED message type right now */
if ((messages & 0x01) && (ahci_em_messages == 1)) {
/*
* ata_generic.c - Generic PATA/SATA controller driver.
- * Copyright 2005 Red Hat Inc <alan@redhat.com>, all rights reserved.
+ * Copyright 2005 Red Hat Inc, all rights reserved.
*
* Elements from ide/pci/generic.c
* Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
*
* Copyright (C) 1998-1999 Andrzej Krzysztofowicz, Author and Maintainer
* Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org>
- * Copyright (C) 2003 Red Hat Inc <alan@redhat.com>
+ * Copyright (C) 2003 Red Hat Inc
*
*
* This program is free software; you can redistribute it and/or modify
struct ata_link *link;
struct ata_device *dev;
- /* If the controller thinks we are 40 wire, we are */
+ /* If the controller thinks we are 40 wire, we are. */
if (ap->cbl == ATA_CBL_PATA40)
return 1;
- /* If the controller thinks we are 80 wire, we are */
+
+ /* If the controller thinks we are 80 wire, we are. */
if (ap->cbl == ATA_CBL_PATA80 || ap->cbl == ATA_CBL_SATA)
return 0;
- /* If the system is known to be 40 wire short cable (eg laptop),
- then we allow 80 wire modes even if the drive isn't sure */
+
+ /* If the system is known to be 40 wire short cable (eg
+ * laptop), then we allow 80 wire modes even if the drive
+ * isn't sure.
+ */
if (ap->cbl == ATA_CBL_PATA40_SHORT)
return 0;
- /* If the controller doesn't know we scan
-
- - Note: We look for all 40 wire detects at this point.
- Any 80 wire detect is taken to be 80 wire cable
- because
- - In many setups only the one drive (slave if present)
- will give a valid detect
- - If you have a non detect capable drive you don't
- want it to colour the choice
- */
+
+ /* If the controller doesn't know, we scan.
+ *
+ * Note: We look for all 40 wire detects at this point. Any
+ * 80 wire detect is taken to be 80 wire cable because
+ * - in many setups only the one drive (slave if present) will
+ * give a valid detect
+ * - if you have a non detect capable drive you don't want it
+ * to colour the choice
+ */
ata_port_for_each_link(link, ap) {
ata_link_for_each_dev(dev, link) {
- if (!ata_is_40wire(dev))
+ if (ata_dev_enabled(dev) && !ata_is_40wire(dev))
return 0;
}
}
/**
* ata_qc_new_init - Request an available ATA command, and initialize it
* @dev: Device from whom we request an available command structure
+ * @tag: command tag
*
* LOCKING:
* None.
ata_link_for_each_dev(dev, link) {
int devno = dev->devno;
+ if (!ata_dev_enabled(dev))
+ continue;
+
ehc->saved_xfer_mode[devno] = dev->xfer_mode;
if (ata_ncq_enabled(dev))
ehc->saved_ncq_enabled |= 1 << devno;
{
struct ata_link *link = dev->link;
struct ata_port *ap = link->ap;
+ struct ata_eh_context *ehc = &link->eh_context;
unsigned long flags;
ata_dev_disable(dev);
ap->pflags |= ATA_PFLAG_SCSI_HOTPLUG;
}
- /* clear per-dev EH actions */
+ /* clear per-dev EH info */
ata_eh_clear_action(link, dev, &link->eh_info, ATA_EH_PERDEV_MASK);
ata_eh_clear_action(link, dev, &link->eh_context.i, ATA_EH_PERDEV_MASK);
+ ehc->saved_xfer_mode[dev->devno] = 0;
+ ehc->saved_ncq_enabled &= ~(1 << dev->devno);
spin_unlock_irqrestore(ap->lock, flags);
}
/* if data transfer is verified, clear DUBIOUS_XFER on ering top */
ata_link_for_each_dev(dev, link) {
+ if (!ata_dev_enabled(dev))
+ continue;
+
if (!(dev->flags & ATA_DFLAG_DUBIOUS_XFER)) {
struct ata_ering_entry *ent;
u8 saved_xfer_mode = ehc->saved_xfer_mode[dev->devno];
u8 saved_ncq = !!(ehc->saved_ncq_enabled & (1 << dev->devno));
+ if (!ata_dev_enabled(dev))
+ continue;
+
if (dev->xfer_mode != saved_xfer_mode ||
ata_ncq_enabled(dev) != saved_ncq)
dev->flags |= ATA_DFLAG_DUBIOUS_XFER;
/*
* ACPI PATA driver
*
- * (c) 2007 Red Hat <alan@redhat.com>
+ * (c) 2007 Red Hat
*/
#include <linux/kernel.h>
/*
* pata_ali.c - ALI 15x3 PATA for new ATA layer
* (C) 2005 Red Hat Inc
- * Alan Cox <alan@redhat.com>
*
* based in part upon
* linux/drivers/ide/pci/alim15x3.c Version 0.17 2003/01/02
/*
* pata_amd.c - AMD PATA for new ATA layer
* (C) 2005-2006 Red Hat Inc
- * Alan Cox <alan@redhat.com>
*
* Based on pata-sil680. Errata information is taken from data sheets
* and the amd74xx.c driver by Vojtech Pavlik. Nvidia SATA devices are
/*
* pata_artop.c - ARTOP ATA controller driver
*
- * (C) 2006 Red Hat <alan@redhat.com>
+ * (C) 2006 Red Hat
* (C) 2007 Bartlomiej Zolnierkiewicz
*
* Based in part on drivers/ide/pci/aec62xx.c
/*
* pata_atiixp.c - ATI PATA for new ATA layer
* (C) 2005 Red Hat Inc
- * Alan Cox <alan@redhat.com>
*
* Based on
*
/*
* pata_cmd640.c - CMD640 PCI PATA for new ATA layer
* (C) 2007 Red Hat Inc
- * Alan Cox <alan@redhat.com>
*
* Based upon
* linux/drivers/ide/pci/cmd640.c Version 1.02 Sep 01, 1996
/*
* pata_cmd64x.c - CMD64x PATA for new ATA layer
* (C) 2005 Red Hat Inc
- * Alan Cox <alan@redhat.com>
+ * Alan Cox <alan@lxorguk.ukuu.org.uk>
*
* Based upon
* linux/drivers/ide/pci/cmd64x.c Version 1.30 Sept 10, 2002
/*
* pata-cs5530.c - CS5530 PATA for new ATA layer
* (C) 2005 Red Hat Inc
- * Alan Cox <alan@redhat.com>
*
* based upon cs5530.c by Mark Lord.
*
/*
* pata-cs5535.c - CS5535 PATA for new ATA layer
* (C) 2005-2006 Red Hat Inc
- * Alan Cox <alan@redhat.com>
+ * Alan Cox <alan@lxorguk.ukuu.org.uk>
*
* based upon cs5535.c from AMD <Jens.Altmann@amd.com> as cleaned up and
* made readable and Linux style by Wolfgang Zuleger <wolfgang.zuleger@gmx.de
/*
* pata_cypress.c - Cypress PATA for new ATA layer
* (C) 2006 Red Hat Inc
- * Alan Cox <alan@redhat.com>
+ * Alan Cox
*
* Based heavily on
* linux/drivers/ide/pci/cy82c693.c Version 0.40 Sep. 10, 2002
/*
* pata_efar.c - EFAR PIIX clone controller driver
*
- * (C) 2005 Red Hat <alan@redhat.com>
+ * (C) 2005 Red Hat
*
* Some parts based on ata_piix.c by Jeff Garzik and others.
*
/*
* pata-isapnp.c - ISA PnP PATA controller driver.
- * Copyright 2005/2006 Red Hat Inc <alan@redhat.com>, all rights reserved.
+ * Copyright 2005/2006 Red Hat Inc, all rights reserved.
*
* Based in part on ide-pnp.c by Andrey Panin <pazke@donpac.ru>
*/
/*
* pata_it821x.c - IT821x PATA for new ATA layer
* (C) 2005 Red Hat Inc
- * Alan Cox <alan@redhat.com>
+ * Alan Cox <alan@lxorguk.ukuu.org.uk>
* (C) 2007 Bartlomiej Zolnierkiewicz
*
* based upon
*
* linux/drivers/ide/pci/it821x.c Version 0.09 December 2004
*
- * Copyright (C) 2004 Red Hat <alan@redhat.com>
+ * Copyright (C) 2004 Red Hat
*
* May be copied or modified under the terms of the GNU General Public License
* Based in part on the ITE vendor provided SCSI driver.
if (strstr(model_num, "Integrated Technology Express")) {
/* Set feature bits the firmware neglects */
id[49] |= 0x0300; /* LBA, DMA */
- id[82] |= 0x0400; /* LBA48 */
id[83] &= 0x7FFF;
- id[83] |= 0x4000; /* Word 83 is valid */
+ id[83] |= 0x4400; /* Word 83 is valid and LBA48 */
id[86] |= 0x0400; /* LBA48 on */
id[ATA_ID_MAJOR_VER] |= 0x1F;
}
* driven by AHCI in the usual configuration although
* this driver can handle other setups if we need it.
*
- * (c) 2006 Red Hat <alan@redhat.com>
+ * (c) 2006 Red Hat
*/
#include <linux/kernel.h>
/*
* pata-legacy.c - Legacy port PATA/SATA controller driver.
- * Copyright 2005/2006 Red Hat <alan@redhat.com>, all rights reserved.
+ * Copyright 2005/2006 Red Hat, all rights reserved.
*
* 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
* isn't making full use of the device functionality but it is
* easy to get working.
*
- * (c) 2006 Red Hat <alan@redhat.com>
+ * (c) 2006 Red Hat
*/
#include <linux/kernel.h>
/*
* pata_mpiix.c - Intel MPIIX PATA for new ATA layer
* (C) 2005-2006 Red Hat Inc
- * Alan Cox <alan@redhat.com>
+ * Alan Cox <alan@lxorguk.ukuu.org.uk>
*
* The MPIIX is different enough to the PIIX4 and friends that we give it
* a separate driver. The old ide/pci code handles this by just not tuning
/*
* pata_netcell.c - Netcell PATA driver
*
- * (c) 2006 Red Hat <alan@redhat.com>
+ * (c) 2006 Red Hat
*/
#include <linux/kernel.h>
/*
* pata_ninja32.c - Ninja32 PATA for new ATA layer
* (C) 2007 Red Hat Inc
- * Alan Cox <alan@redhat.com>
*
* Note: The controller like many controllers has shared timings for
* PIO and DMA. We thus flip to the DMA timings in dma_start and flip back
#include <linux/libata.h>
#define DRV_NAME "pata_ninja32"
-#define DRV_VERSION "0.0.1"
+#define DRV_VERSION "0.1.1"
/**
.set_piomode = ninja32_set_piomode,
};
+static void ninja32_program(void __iomem *base)
+{
+ iowrite8(0x05, base + 0x01); /* Enable interrupt lines */
+ iowrite8(0xBE, base + 0x02); /* Burst, ?? setup */
+ iowrite8(0x01, base + 0x03); /* Unknown */
+ iowrite8(0x20, base + 0x04); /* WAIT0 */
+ iowrite8(0x8f, base + 0x05); /* Unknown */
+ iowrite8(0xa4, base + 0x1c); /* Unknown */
+ iowrite8(0x83, base + 0x1d); /* BMDMA control: WAIT0 */
+}
+
static int ninja32_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
struct ata_host *host;
ap->ioaddr.bmdma_addr = base;
ata_sff_std_ports(&ap->ioaddr);
- iowrite8(0x05, base + 0x01); /* Enable interrupt lines */
- iowrite8(0xBE, base + 0x02); /* Burst, ?? setup */
- iowrite8(0x01, base + 0x03); /* Unknown */
- iowrite8(0x20, base + 0x04); /* WAIT0 */
- iowrite8(0x8f, base + 0x05); /* Unknown */
- iowrite8(0xa4, base + 0x1c); /* Unknown */
- iowrite8(0x83, base + 0x1d); /* BMDMA control: WAIT0 */
+ ninja32_program(base);
/* FIXME: Should we disable them at remove ? */
return ata_host_activate(host, dev->irq, ata_sff_interrupt,
IRQF_SHARED, &ninja32_sht);
}
+#ifdef CONFIG_PM
+
+static int ninja32_reinit_one(struct pci_dev *pdev)
+{
+ struct ata_host *host = dev_get_drvdata(&pdev->dev);
+ int rc;
+
+ rc = ata_pci_device_do_resume(pdev);
+ if (rc)
+ return rc;
+ ninja32_program(host->iomap[0]);
+ ata_host_resume(host);
+ return 0;
+}
+#endif
+
static const struct pci_device_id ninja32[] = {
{ 0x1145, 0xf021, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ 0x1145, 0xf024, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
.name = DRV_NAME,
.id_table = ninja32,
.probe = ninja32_init_one,
- .remove = ata_pci_remove_one
+ .remove = ata_pci_remove_one,
+#ifdef CONFIG_PM
+ .suspend = ata_pci_device_suspend,
+ .resume = ninja32_reinit_one,
+#endif
};
static int __init ninja32_init(void)
/*
* pata_ns87410.c - National Semiconductor 87410 PATA for new ATA layer
* (C) 2006 Red Hat Inc
- * Alan Cox <alan@redhat.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
/*
* pata_ns87415.c - NS87415 (non PARISC) PATA
*
- * (C) 2005 Red Hat <alan@redhat.com>
+ * (C) 2005 Red Hat <alan@lxorguk.ukuu.org.uk>
*
* This is a fairly generic MWDMA controller. It has some limitations
* as it requires timing reloads on PIO/DMA transitions but it is otherwise
/*
* pata_oldpiix.c - Intel PATA/SATA controllers
*
- * (C) 2005 Red Hat <alan@redhat.com>
+ * (C) 2005 Red Hat
*
* Some parts based on ata_piix.c by Jeff Garzik and others.
*
/*
* pata_opti.c - ATI PATA for new ATA layer
* (C) 2005 Red Hat Inc
- * Alan Cox <alan@redhat.com>
*
* Based on
* linux/drivers/ide/pci/opti621.c Version 0.7 Sept 10, 2002
/*
* pata_optidma.c - Opti DMA PATA for new ATA layer
* (C) 2006 Red Hat Inc
- * Alan Cox <alan@redhat.com>
*
* The Opti DMA controllers are related to the older PIO PCI controllers
* and indeed the VLB ones. The main differences are that the timing
/*
* pata_pcmcia.c - PCMCIA PATA controller driver.
- * Copyright 2005-2006 Red Hat Inc <alan@redhat.com>, all rights reserved.
+ * Copyright 2005-2006 Red Hat Inc, all rights reserved.
* PCMCIA ident update Copyright 2006 Marcin Juszkiewicz
* <openembedded@hrw.one.pl>
*
/*
* pata_pdc202xx_old.c - Promise PDC202xx PATA for new ATA layer
* (C) 2005 Red Hat Inc
- * Alan Cox <alan@redhat.com>
+ * Alan Cox <alan@lxorguk.ukuu.org.uk>
* (C) 2007 Bartlomiej Zolnierkiewicz
*
* Based in part on linux/drivers/ide/pci/pdc202xx_old.c
*
* Based on pata_pcmcia:
*
- * Copyright 2005-2006 Red Hat Inc <alan@redhat.com>, all rights reserved.
+ * Copyright 2005-2006 Red Hat Inc, all rights reserved.
*
* 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
/*
* pata_qdi.c - QDI VLB ATA controllers
- * (C) 2006 Red Hat <alan@redhat.com>
+ * (C) 2006 Red Hat
*
* This driver mostly exists as a proof of concept for non PCI devices under
* libata. While the QDI6580 was 'neat' in 1993 it is no longer terribly
/*
* pata_radisys.c - Intel PATA/SATA controllers
*
- * (C) 2006 Red Hat <alan@redhat.com>
+ * (C) 2006 Red Hat <alan@lxorguk.ukuu.org.uk>
*
* Some parts based on ata_piix.c by Jeff Garzik and others.
*
/*
- * New ATA layer SC1200 driver Alan Cox <alan@redhat.com>
+ * New ATA layer SC1200 driver Alan Cox <alan@lxorguk.ukuu.org.uk>
*
* TODO: Mode selection filtering
* TODO: Can't enable second channel until ATA core has serialize
* Copyright 2003-2005 Jeff Garzik
* Copyright (C) 1998-1999 Andrzej Krzysztofowicz, Author and Maintainer
* Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org>
- * Copyright (C) 2003 Red Hat Inc <alan@redhat.com>
+ * Copyright (C) 2003 Red Hat Inc
*
* and drivers/ata/ahci.c:
* Copyright 2004-2005 Red Hat, Inc.
/*
* pata_serverworks.c - Serverworks PATA for new ATA layer
* (C) 2005 Red Hat Inc
- * Alan Cox <alan@redhat.com>
*
* based upon
*
/*
* pata_sil680.c - SIL680 PATA for new ATA layer
* (C) 2005 Red Hat Inc
- * Alan Cox <alan@redhat.com>
*
* based upon
*
/*
* pata_sis.c - SiS ATA driver
*
- * (C) 2005 Red Hat <alan@redhat.com>
+ * (C) 2005 Red Hat
* (C) 2007 Bartlomiej Zolnierkiewicz
*
* Based upon linux/drivers/ide/pci/sis5513.c
/*
* pata_sl82c105.c - SL82C105 PATA for new ATA layer
* (C) 2005 Red Hat Inc
- * Alan Cox <alan@redhat.com>
*
* Based in part on linux/drivers/ide/pci/sl82c105.c
* SL82C105/Winbond 553 IDE driver
/*
* pata_triflex.c - Compaq PATA for new ATA layer
* (C) 2005 Red Hat Inc
- * Alan Cox <alan@redhat.com>
+ * Alan Cox <alan@lxorguk.ukuu.org.uk>
*
* based upon
*
/*
* pata_via.c - VIA PATA for new ATA layer
* (C) 2005-2006 Red Hat Inc
- * Alan Cox <alan@redhat.com>
*
* Documentation
* Most chipset documentation available under NDA only
/*
* pata_winbond.c - Winbond VLB ATA controllers
- * (C) 2006 Red Hat <alan@redhat.com>
+ * (C) 2006 Red Hat
*
* Support for the Winbond 83759A when operating in advanced mode.
* Multichip mode is not currently supported.
}
}
+ /* Set max read request size to 4096. This slightly increases
+ * write throughput for pci-e variants.
+ */
+ pcie_set_readrq(pdev, 4096);
+
sil24_init_controller(host);
pci_set_master(pdev);
* sysdev_suspend - Suspend all system devices.
* @state: Power state to enter.
*
- * We perform an almost identical operation as sys_device_shutdown()
+ * We perform an almost identical operation as sysdev_shutdown()
* above, though calling ->suspend() instead. Interrupts are disabled
* when this called. Devices are responsible for both saving state and
* quiescing or powering down the device.
/**
* sysdev_resume - Bring system devices back to life.
*
- * Similar to sys_device_suspend(), but we iterate the list forwards
+ * Similar to sysdev_suspend(), but we iterate the list forwards
* to guarantee that parent devices are resumed before their children.
*
* Note: Interrupts are disabled when called.
if (end == buf)
return -EINVAL;
*(unsigned long *)(ea->var) = new;
- return end - buf;
+ /* Always return full write size even if we didn't consume all */
+ return size;
}
EXPORT_SYMBOL_GPL(sysdev_store_ulong);
if (end == buf || new > INT_MAX || new < INT_MIN)
return -EINVAL;
*(int *)(ea->var) = new;
- return end - buf;
+ /* Always return full write size even if we didn't consume all */
+ return size;
}
EXPORT_SYMBOL_GPL(sysdev_store_int);
* Heinz Mauelshagen <mge@sistina.com>, Feb 2002
*
* Support for falling back on the write file operation when the address space
- * operations prepare_write and/or commit_write are not available on the
- * backing filesystem.
+ * operations write_begin is not available on the backing filesystem.
* Anton Altaparmakov, 16 Feb 2005
*
* Still To Fix:
*/
if (!file->f_op->splice_read)
goto out_putf;
- if (aops->prepare_write || aops->write_begin)
+ if (aops->write_begin)
lo_flags |= LO_FLAGS_USE_AOPS;
if (!(lo_flags & LO_FLAGS_USE_AOPS) && !file->f_op->write)
lo_flags |= LO_FLAGS_READ_ONLY;
link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
link->io.NumPorts1 = 8;
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
+ link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
link->irq.IRQInfo1 = IRQ_LEVEL_ID;
link->irq.Handler = bluecard_interrupt;
bt3c_info_t *info = dev_inst;
unsigned int iobase;
int iir;
+ irqreturn_t r = IRQ_NONE;
BUG_ON(!info->hdev);
outb(iir, iobase + CONTROL);
}
+ r = IRQ_HANDLED;
}
spin_unlock(&(info->lock));
- return IRQ_HANDLED;
+ return r;
}
link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
link->io.NumPorts1 = 8;
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
+ link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
link->irq.IRQInfo1 = IRQ_LEVEL_ID;
link->irq.Handler = bt3c_interrupt;
unsigned int iobase;
int boguscount = 0;
int iir, lsr;
+ irqreturn_t r = IRQ_NONE;
BUG_ON(!info->hdev);
iir = inb(iobase + UART_IIR) & UART_IIR_ID;
while (iir) {
+ r = IRQ_HANDLED;
/* Clear interrupt */
lsr = inb(iobase + UART_LSR);
spin_unlock(&(info->lock));
- return IRQ_HANDLED;
+ return r;
}
link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
link->io.NumPorts1 = 8;
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
+ link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
link->irq.IRQInfo1 = IRQ_LEVEL_ID;
link->irq.Handler = btuart_interrupt;
unsigned char msr;
int boguscount = 0;
int iir, lsr;
+ irqreturn_t r = IRQ_NONE;
BUG_ON(!info->hdev);
iir = inb(iobase + UART_IIR) & UART_IIR_ID;
while (iir) {
+ r = IRQ_HANDLED;
/* Clear interrupt */
lsr = inb(iobase + UART_LSR);
info->ri_latch = msr & UART_MSR_RI;
clear_bit(XMIT_WAITING, &(info->tx_state));
dtl1_write_wakeup(info);
+ r = IRQ_HANDLED;
}
spin_unlock(&(info->lock));
- return IRQ_HANDLED;
+ return r;
}
link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
link->io.NumPorts1 = 8;
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
+ link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
link->irq.IRQInfo1 = IRQ_LEVEL_ID;
link->irq.Handler = dtl1_interrupt;
To compile this driver as a module, choose M here: the
module will be called js-rtc.
-config SGI_DS1286
- tristate "SGI DS1286 RTC support"
- depends on SGI_HAS_DS1286
- help
- If you say Y here and create a character special file /dev/rtc with
- major number 10 and minor number 135 using mknod ("man mknod"), you
- will get access to the real time clock built into your computer.
- Every SGI has such a clock built in. It reports status information
- via the file /proc/rtc and its behaviour is set by various ioctls on
- /dev/rtc.
-
-config SGI_IP27_RTC
- bool "SGI M48T35 RTC support"
- depends on SGI_IP27
- help
- If you say Y here and create a character special file /dev/rtc with
- major number 10 and minor number 135 using mknod ("man mknod"), you
- will get access to the real time clock built into your computer.
- Every SGI has such a clock built in. It reports status information
- via the file /proc/rtc and its behaviour is set by various ioctls on
- /dev/rtc.
-
config GEN_RTC
tristate "Generic /dev/rtc emulation"
depends on RTC!=y && !IA64 && !ARM && !M32R && !MIPS && !SPARC && !FRV && !S390 && !SUPERH && !AVR32
obj-$(CONFIG_HPET) += hpet.o
obj-$(CONFIG_GEN_RTC) += genrtc.o
obj-$(CONFIG_EFI_RTC) += efirtc.o
-obj-$(CONFIG_SGI_DS1286) += ds1286.o
-obj-$(CONFIG_SGI_IP27_RTC) += ip27-rtc.o
obj-$(CONFIG_DS1302) += ds1302.o
obj-$(CONFIG_XILINX_HWICAP) += xilinx_hwicap/
ifeq ($(CONFIG_GENERIC_NVRAM),y)
+++ /dev/null
-/*
- * DS1286 Real Time Clock interface for Linux
- *
- * Copyright (C) 1998, 1999, 2000 Ralf Baechle
- *
- * Based on code written by Paul Gortmaker.
- *
- * This driver allows use of the real time clock (built into nearly all
- * computers) from user space. It exports the /dev/rtc interface supporting
- * various ioctl() and also the /proc/rtc pseudo-file for status
- * information.
- *
- * The ioctls can be used to set the interrupt behaviour and generation rate
- * from the RTC via IRQ 8. Then the /dev/rtc interface can be used to make
- * use of these timer interrupts, be they interval or alarm based.
- *
- * The /dev/rtc interface will block on reads until an interrupt has been
- * received. If a RTC interrupt has already happened, it will output an
- * unsigned long and then block. The output value contains the interrupt
- * status in the low byte and the number of interrupts since the last read
- * in the remaining high bytes. The /dev/rtc interface can also be used with
- * the select(2) call.
- *
- * 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.
- */
-#include <linux/ds1286.h>
-#include <linux/smp_lock.h>
-#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/init.h>
-#include <linux/poll.h>
-#include <linux/rtc.h>
-#include <linux/spinlock.h>
-#include <linux/bcd.h>
-#include <linux/proc_fs.h>
-#include <linux/jiffies.h>
-
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#define DS1286_VERSION "1.0"
-
-/*
- * We sponge a minor off of the misc major. No need slurping
- * up another valuable major dev number for this. If you add
- * an ioctl, make sure you don't conflict with SPARC's RTC
- * ioctls.
- */
-
-static DECLARE_WAIT_QUEUE_HEAD(ds1286_wait);
-
-static ssize_t ds1286_read(struct file *file, char *buf,
- size_t count, loff_t *ppos);
-
-static int ds1286_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg);
-
-static unsigned int ds1286_poll(struct file *file, poll_table *wait);
-
-static void ds1286_get_alm_time (struct rtc_time *alm_tm);
-static void ds1286_get_time(struct rtc_time *rtc_tm);
-static int ds1286_set_time(struct rtc_time *rtc_tm);
-
-static inline unsigned char ds1286_is_updating(void);
-
-static DEFINE_SPINLOCK(ds1286_lock);
-
-static int ds1286_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data);
-
-/*
- * Bits in rtc_status. (7 bits of room for future expansion)
- */
-
-#define RTC_IS_OPEN 0x01 /* means /dev/rtc is in use */
-#define RTC_TIMER_ON 0x02 /* missed irq timer active */
-
-static unsigned char ds1286_status; /* bitmapped status byte. */
-
-static unsigned char days_in_mo[] = {
- 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
-};
-
-/*
- * Now all the various file operations that we export.
- */
-
-static ssize_t ds1286_read(struct file *file, char *buf,
- size_t count, loff_t *ppos)
-{
- return -EIO;
-}
-
-static int ds1286_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct rtc_time wtime;
-
- switch (cmd) {
- case RTC_AIE_OFF: /* Mask alarm int. enab. bit */
- {
- unsigned long flags;
- unsigned char val;
-
- if (!capable(CAP_SYS_TIME))
- return -EACCES;
-
- spin_lock_irqsave(&ds1286_lock, flags);
- val = rtc_read(RTC_CMD);
- val |= RTC_TDM;
- rtc_write(val, RTC_CMD);
- spin_unlock_irqrestore(&ds1286_lock, flags);
-
- return 0;
- }
- case RTC_AIE_ON: /* Allow alarm interrupts. */
- {
- unsigned long flags;
- unsigned char val;
-
- if (!capable(CAP_SYS_TIME))
- return -EACCES;
-
- spin_lock_irqsave(&ds1286_lock, flags);
- val = rtc_read(RTC_CMD);
- val &= ~RTC_TDM;
- rtc_write(val, RTC_CMD);
- spin_unlock_irqrestore(&ds1286_lock, flags);
-
- return 0;
- }
- case RTC_WIE_OFF: /* Mask watchdog int. enab. bit */
- {
- unsigned long flags;
- unsigned char val;
-
- if (!capable(CAP_SYS_TIME))
- return -EACCES;
-
- spin_lock_irqsave(&ds1286_lock, flags);
- val = rtc_read(RTC_CMD);
- val |= RTC_WAM;
- rtc_write(val, RTC_CMD);
- spin_unlock_irqrestore(&ds1286_lock, flags);
-
- return 0;
- }
- case RTC_WIE_ON: /* Allow watchdog interrupts. */
- {
- unsigned long flags;
- unsigned char val;
-
- if (!capable(CAP_SYS_TIME))
- return -EACCES;
-
- spin_lock_irqsave(&ds1286_lock, flags);
- val = rtc_read(RTC_CMD);
- val &= ~RTC_WAM;
- rtc_write(val, RTC_CMD);
- spin_unlock_irqrestore(&ds1286_lock, flags);
-
- return 0;
- }
- case RTC_ALM_READ: /* Read the present alarm time */
- {
- /*
- * This returns a struct rtc_time. Reading >= 0xc0
- * means "don't care" or "match all". Only the tm_hour,
- * tm_min, and tm_sec values are filled in.
- */
-
- memset(&wtime, 0, sizeof(wtime));
- ds1286_get_alm_time(&wtime);
- break;
- }
- case RTC_ALM_SET: /* Store a time into the alarm */
- {
- /*
- * This expects a struct rtc_time. Writing 0xff means
- * "don't care" or "match all". Only the tm_hour,
- * tm_min and tm_sec are used.
- */
- unsigned char hrs, min, sec;
- struct rtc_time alm_tm;
-
- if (!capable(CAP_SYS_TIME))
- return -EACCES;
-
- if (copy_from_user(&alm_tm, (struct rtc_time*)arg,
- sizeof(struct rtc_time)))
- return -EFAULT;
-
- hrs = alm_tm.tm_hour;
- min = alm_tm.tm_min;
- sec = alm_tm.tm_sec;
-
- if (hrs >= 24)
- hrs = 0xff;
-
- if (min >= 60)
- min = 0xff;
-
- if (sec != 0)
- return -EINVAL;
-
- min = bin2bcd(min);
- min = bin2bcd(hrs);
-
- spin_lock(&ds1286_lock);
- rtc_write(hrs, RTC_HOURS_ALARM);
- rtc_write(min, RTC_MINUTES_ALARM);
- spin_unlock(&ds1286_lock);
-
- return 0;
- }
- case RTC_RD_TIME: /* Read the time/date from RTC */
- {
- memset(&wtime, 0, sizeof(wtime));
- ds1286_get_time(&wtime);
- break;
- }
- case RTC_SET_TIME: /* Set the RTC */
- {
- struct rtc_time rtc_tm;
-
- if (!capable(CAP_SYS_TIME))
- return -EACCES;
-
- if (copy_from_user(&rtc_tm, (struct rtc_time*)arg,
- sizeof(struct rtc_time)))
- return -EFAULT;
-
- return ds1286_set_time(&rtc_tm);
- }
- default:
- return -EINVAL;
- }
- return copy_to_user((void *)arg, &wtime, sizeof wtime) ? -EFAULT : 0;
-}
-
-/*
- * We enforce only one user at a time here with the open/close.
- * Also clear the previous interrupt data on an open, and clean
- * up things on a close.
- */
-
-static int ds1286_open(struct inode *inode, struct file *file)
-{
- lock_kernel();
- spin_lock_irq(&ds1286_lock);
-
- if (ds1286_status & RTC_IS_OPEN)
- goto out_busy;
-
- ds1286_status |= RTC_IS_OPEN;
-
- spin_unlock_irq(&ds1286_lock);
- unlock_kernel();
- return 0;
-
-out_busy:
- spin_lock_irq(&ds1286_lock);
- unlock_kernel();
- return -EBUSY;
-}
-
-static int ds1286_release(struct inode *inode, struct file *file)
-{
- ds1286_status &= ~RTC_IS_OPEN;
-
- return 0;
-}
-
-static unsigned int ds1286_poll(struct file *file, poll_table *wait)
-{
- poll_wait(file, &ds1286_wait, wait);
-
- return 0;
-}
-
-/*
- * The various file operations we support.
- */
-
-static const struct file_operations ds1286_fops = {
- .llseek = no_llseek,
- .read = ds1286_read,
- .poll = ds1286_poll,
- .ioctl = ds1286_ioctl,
- .open = ds1286_open,
- .release = ds1286_release,
-};
-
-static struct miscdevice ds1286_dev=
-{
- .minor = RTC_MINOR,
- .name = "rtc",
- .fops = &ds1286_fops,
-};
-
-static int __init ds1286_init(void)
-{
- int err;
-
- printk(KERN_INFO "DS1286 Real Time Clock Driver v%s\n", DS1286_VERSION);
-
- err = misc_register(&ds1286_dev);
- if (err)
- goto out;
-
- if (!create_proc_read_entry("driver/rtc", 0, 0, ds1286_read_proc, NULL)) {
- err = -ENOMEM;
-
- goto out_deregister;
- }
-
- return 0;
-
-out_deregister:
- misc_deregister(&ds1286_dev);
-
-out:
- return err;
-}
-
-static void __exit ds1286_exit(void)
-{
- remove_proc_entry("driver/rtc", NULL);
- misc_deregister(&ds1286_dev);
-}
-
-static char *days[] = {
- "***", "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
-};
-
-/*
- * Info exported via "/proc/rtc".
- */
-static int ds1286_proc_output(char *buf)
-{
- char *p, *s;
- struct rtc_time tm;
- unsigned char hundredth, month, cmd, amode;
-
- p = buf;
-
- ds1286_get_time(&tm);
- hundredth = rtc_read(RTC_HUNDREDTH_SECOND);
- hundredth = bcd2bin(hundredth);
-
- p += sprintf(p,
- "rtc_time\t: %02d:%02d:%02d.%02d\n"
- "rtc_date\t: %04d-%02d-%02d\n",
- tm.tm_hour, tm.tm_min, tm.tm_sec, hundredth,
- tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
-
- /*
- * We implicitly assume 24hr mode here. Alarm values >= 0xc0 will
- * match any value for that particular field. Values that are
- * greater than a valid time, but less than 0xc0 shouldn't appear.
- */
- ds1286_get_alm_time(&tm);
- p += sprintf(p, "alarm\t\t: %s ", days[tm.tm_wday]);
- if (tm.tm_hour <= 24)
- p += sprintf(p, "%02d:", tm.tm_hour);
- else
- p += sprintf(p, "**:");
-
- if (tm.tm_min <= 59)
- p += sprintf(p, "%02d\n", tm.tm_min);
- else
- p += sprintf(p, "**\n");
-
- month = rtc_read(RTC_MONTH);
- p += sprintf(p,
- "oscillator\t: %s\n"
- "square_wave\t: %s\n",
- (month & RTC_EOSC) ? "disabled" : "enabled",
- (month & RTC_ESQW) ? "disabled" : "enabled");
-
- amode = ((rtc_read(RTC_MINUTES_ALARM) & 0x80) >> 5) |
- ((rtc_read(RTC_HOURS_ALARM) & 0x80) >> 6) |
- ((rtc_read(RTC_DAY_ALARM) & 0x80) >> 7);
- if (amode == 7) s = "each minute";
- else if (amode == 3) s = "minutes match";
- else if (amode == 1) s = "hours and minutes match";
- else if (amode == 0) s = "days, hours and minutes match";
- else s = "invalid";
- p += sprintf(p, "alarm_mode\t: %s\n", s);
-
- cmd = rtc_read(RTC_CMD);
- p += sprintf(p,
- "alarm_enable\t: %s\n"
- "wdog_alarm\t: %s\n"
- "alarm_mask\t: %s\n"
- "wdog_alarm_mask\t: %s\n"
- "interrupt_mode\t: %s\n"
- "INTB_mode\t: %s_active\n"
- "interrupt_pins\t: %s\n",
- (cmd & RTC_TDF) ? "yes" : "no",
- (cmd & RTC_WAF) ? "yes" : "no",
- (cmd & RTC_TDM) ? "disabled" : "enabled",
- (cmd & RTC_WAM) ? "disabled" : "enabled",
- (cmd & RTC_PU_LVL) ? "pulse" : "level",
- (cmd & RTC_IBH_LO) ? "low" : "high",
- (cmd & RTC_IPSW) ? "unswapped" : "swapped");
-
- return p - buf;
-}
-
-static int ds1286_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len = ds1286_proc_output (page);
- if (len <= off+count) *eof = 1;
- *start = page + off;
- len -= off;
- if (len>count)
- len = count;
- if (len<0)
- len = 0;
-
- return len;
-}
-
-/*
- * Returns true if a clock update is in progress
- */
-static inline unsigned char ds1286_is_updating(void)
-{
- return rtc_read(RTC_CMD) & RTC_TE;
-}
-
-
-static void ds1286_get_time(struct rtc_time *rtc_tm)
-{
- unsigned char save_control;
- unsigned long flags;
-
- /*
- * read RTC once any update in progress is done. The update
- * can take just over 2ms. We wait 10 to 20ms. There is no need to
- * to poll-wait (up to 1s - eeccch) for the falling edge of RTC_UIP.
- * If you need to know *exactly* when a second has started, enable
- * periodic update complete interrupts, (via ioctl) and then
- * immediately read /dev/rtc which will block until you get the IRQ.
- * Once the read clears, read the RTC time (again via ioctl). Easy.
- */
-
- if (ds1286_is_updating() != 0)
- msleep(20);
-
- /*
- * Only the values that we read from the RTC are set. We leave
- * tm_wday, tm_yday and tm_isdst untouched. Even though the
- * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
- * by the RTC when initially set to a non-zero value.
- */
- spin_lock_irqsave(&ds1286_lock, flags);
- save_control = rtc_read(RTC_CMD);
- rtc_write((save_control|RTC_TE), RTC_CMD);
-
- rtc_tm->tm_sec = rtc_read(RTC_SECONDS);
- rtc_tm->tm_min = rtc_read(RTC_MINUTES);
- rtc_tm->tm_hour = rtc_read(RTC_HOURS) & 0x3f;
- rtc_tm->tm_mday = rtc_read(RTC_DATE);
- rtc_tm->tm_mon = rtc_read(RTC_MONTH) & 0x1f;
- rtc_tm->tm_year = rtc_read(RTC_YEAR);
-
- rtc_write(save_control, RTC_CMD);
- spin_unlock_irqrestore(&ds1286_lock, flags);
-
- rtc_tm->tm_sec = bcd2bin(rtc_tm->tm_sec);
- rtc_tm->tm_min = bcd2bin(rtc_tm->tm_min);
- rtc_tm->tm_hour = bcd2bin(rtc_tm->tm_hour);
- rtc_tm->tm_mday = bcd2bin(rtc_tm->tm_mday);
- rtc_tm->tm_mon = bcd2bin(rtc_tm->tm_mon);
- rtc_tm->tm_year = bcd2bin(rtc_tm->tm_year);
-
- /*
- * Account for differences between how the RTC uses the values
- * and how they are defined in a struct rtc_time;
- */
- if (rtc_tm->tm_year < 45)
- rtc_tm->tm_year += 30;
- if ((rtc_tm->tm_year += 40) < 70)
- rtc_tm->tm_year += 100;
-
- rtc_tm->tm_mon--;
-}
-
-static int ds1286_set_time(struct rtc_time *rtc_tm)
-{
- unsigned char mon, day, hrs, min, sec, leap_yr;
- unsigned char save_control;
- unsigned int yrs;
- unsigned long flags;
-
-
- yrs = rtc_tm->tm_year + 1900;
- mon = rtc_tm->tm_mon + 1; /* tm_mon starts at zero */
- day = rtc_tm->tm_mday;
- hrs = rtc_tm->tm_hour;
- min = rtc_tm->tm_min;
- sec = rtc_tm->tm_sec;
-
- if (yrs < 1970)
- return -EINVAL;
-
- leap_yr = ((!(yrs % 4) && (yrs % 100)) || !(yrs % 400));
-
- if ((mon > 12) || (day == 0))
- return -EINVAL;
-
- if (day > (days_in_mo[mon] + ((mon == 2) && leap_yr)))
- return -EINVAL;
-
- if ((hrs >= 24) || (min >= 60) || (sec >= 60))
- return -EINVAL;
-
- if ((yrs -= 1940) > 255) /* They are unsigned */
- return -EINVAL;
-
- if (yrs >= 100)
- yrs -= 100;
-
- sec = bin2bcd(sec);
- min = bin2bcd(min);
- hrs = bin2bcd(hrs);
- day = bin2bcd(day);
- mon = bin2bcd(mon);
- yrs = bin2bcd(yrs);
-
- spin_lock_irqsave(&ds1286_lock, flags);
- save_control = rtc_read(RTC_CMD);
- rtc_write((save_control|RTC_TE), RTC_CMD);
-
- rtc_write(yrs, RTC_YEAR);
- rtc_write(mon, RTC_MONTH);
- rtc_write(day, RTC_DATE);
- rtc_write(hrs, RTC_HOURS);
- rtc_write(min, RTC_MINUTES);
- rtc_write(sec, RTC_SECONDS);
- rtc_write(0, RTC_HUNDREDTH_SECOND);
-
- rtc_write(save_control, RTC_CMD);
- spin_unlock_irqrestore(&ds1286_lock, flags);
-
- return 0;
-}
-
-static void ds1286_get_alm_time(struct rtc_time *alm_tm)
-{
- unsigned char cmd;
- unsigned long flags;
-
- /*
- * Only the values that we read from the RTC are set. That
- * means only tm_wday, tm_hour, tm_min.
- */
- spin_lock_irqsave(&ds1286_lock, flags);
- alm_tm->tm_min = rtc_read(RTC_MINUTES_ALARM) & 0x7f;
- alm_tm->tm_hour = rtc_read(RTC_HOURS_ALARM) & 0x1f;
- alm_tm->tm_wday = rtc_read(RTC_DAY_ALARM) & 0x07;
- cmd = rtc_read(RTC_CMD);
- spin_unlock_irqrestore(&ds1286_lock, flags);
-
- alm_tm->tm_min = bcd2bin(alm_tm->tm_min);
- alm_tm->tm_hour = bcd2bin(alm_tm->tm_hour);
- alm_tm->tm_sec = 0;
-}
-
-module_init(ds1286_init);
-module_exit(ds1286_exit);
-
-MODULE_AUTHOR("Ralf Baechle");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(RTC_MINOR);
+++ /dev/null
-/*
- * Driver for the SGS-Thomson M48T35 Timekeeper RAM chip
- *
- * Real Time Clock interface for Linux
- *
- * TODO: Implement periodic interrupts.
- *
- * Copyright (C) 2000 Silicon Graphics, Inc.
- * Written by Ulf Carlsson (ulfc@engr.sgi.com)
- *
- * Based on code written by Paul Gortmaker.
- *
- * This driver allows use of the real time clock (built into
- * nearly all computers) from user space. It exports the /dev/rtc
- * interface supporting various ioctl() and also the /proc/rtc
- * pseudo-file for status information.
- *
- * 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.
- *
- */
-
-#define RTC_VERSION "1.09b"
-
-#include <linux/bcd.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/smp_lock.h>
-#include <linux/types.h>
-#include <linux/miscdevice.h>
-#include <linux/ioport.h>
-#include <linux/fcntl.h>
-#include <linux/rtc.h>
-#include <linux/init.h>
-#include <linux/poll.h>
-#include <linux/proc_fs.h>
-
-#include <asm/m48t35.h>
-#include <asm/sn/ioc3.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/sn/klconfig.h>
-#include <asm/sn/sn0/ip27.h>
-#include <asm/sn/sn0/hub.h>
-#include <asm/sn/sn_private.h>
-
-static long rtc_ioctl(struct file *filp, unsigned int cmd,
- unsigned long arg);
-
-static int rtc_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data);
-
-static void get_rtc_time(struct rtc_time *rtc_tm);
-
-/*
- * Bits in rtc_status. (6 bits of room for future expansion)
- */
-
-#define RTC_IS_OPEN 0x01 /* means /dev/rtc is in use */
-#define RTC_TIMER_ON 0x02 /* missed irq timer active */
-
-static unsigned char rtc_status; /* bitmapped status byte. */
-static unsigned long rtc_freq; /* Current periodic IRQ rate */
-static struct m48t35_rtc *rtc;
-
-/*
- * If this driver ever becomes modularised, it will be really nice
- * to make the epoch retain its value across module reload...
- */
-
-static unsigned long epoch = 1970; /* year corresponding to 0x00 */
-
-static const unsigned char days_in_mo[] =
-{0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
-
-static long rtc_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
-
- struct rtc_time wtime;
-
- switch (cmd) {
- case RTC_RD_TIME: /* Read the time/date from RTC */
- {
- get_rtc_time(&wtime);
- break;
- }
- case RTC_SET_TIME: /* Set the RTC */
- {
- struct rtc_time rtc_tm;
- unsigned char mon, day, hrs, min, sec, leap_yr;
- unsigned int yrs;
-
- if (!capable(CAP_SYS_TIME))
- return -EACCES;
-
- if (copy_from_user(&rtc_tm, (struct rtc_time*)arg,
- sizeof(struct rtc_time)))
- return -EFAULT;
-
- yrs = rtc_tm.tm_year + 1900;
- mon = rtc_tm.tm_mon + 1; /* tm_mon starts at zero */
- day = rtc_tm.tm_mday;
- hrs = rtc_tm.tm_hour;
- min = rtc_tm.tm_min;
- sec = rtc_tm.tm_sec;
-
- if (yrs < 1970)
- return -EINVAL;
-
- leap_yr = ((!(yrs % 4) && (yrs % 100)) || !(yrs % 400));
-
- if ((mon > 12) || (day == 0))
- return -EINVAL;
-
- if (day > (days_in_mo[mon] + ((mon == 2) && leap_yr)))
- return -EINVAL;
-
- if ((hrs >= 24) || (min >= 60) || (sec >= 60))
- return -EINVAL;
-
- if ((yrs -= epoch) > 255) /* They are unsigned */
- return -EINVAL;
-
- if (yrs > 169)
- return -EINVAL;
-
- if (yrs >= 100)
- yrs -= 100;
-
- sec = bin2bcd(sec);
- min = bin2bcd(min);
- hrs = bin2bcd(hrs);
- day = bin2bcd(day);
- mon = bin2bcd(mon);
- yrs = bin2bcd(yrs);
-
- spin_lock_irq(&rtc_lock);
- rtc->control |= M48T35_RTC_SET;
- rtc->year = yrs;
- rtc->month = mon;
- rtc->date = day;
- rtc->hour = hrs;
- rtc->min = min;
- rtc->sec = sec;
- rtc->control &= ~M48T35_RTC_SET;
- spin_unlock_irq(&rtc_lock);
-
- return 0;
- }
- default:
- return -EINVAL;
- }
- return copy_to_user((void *)arg, &wtime, sizeof wtime) ? -EFAULT : 0;
-}
-
-/*
- * We enforce only one user at a time here with the open/close.
- * Also clear the previous interrupt data on an open, and clean
- * up things on a close.
- */
-
-static int rtc_open(struct inode *inode, struct file *file)
-{
- lock_kernel();
- spin_lock_irq(&rtc_lock);
-
- if (rtc_status & RTC_IS_OPEN) {
- spin_unlock_irq(&rtc_lock);
- unlock_kernel();
- return -EBUSY;
- }
-
- rtc_status |= RTC_IS_OPEN;
- spin_unlock_irq(&rtc_lock);
- unlock_kernel();
-
- return 0;
-}
-
-static int rtc_release(struct inode *inode, struct file *file)
-{
- /*
- * Turn off all interrupts once the device is no longer
- * in use, and clear the data.
- */
-
- spin_lock_irq(&rtc_lock);
- rtc_status &= ~RTC_IS_OPEN;
- spin_unlock_irq(&rtc_lock);
-
- return 0;
-}
-
-/*
- * The various file operations we support.
- */
-
-static const struct file_operations rtc_fops = {
- .owner = THIS_MODULE,
- .unlocked_ioctl = rtc_ioctl,
- .open = rtc_open,
- .release = rtc_release,
-};
-
-static struct miscdevice rtc_dev=
-{
- RTC_MINOR,
- "rtc",
- &rtc_fops
-};
-
-static int __init rtc_init(void)
-{
- rtc = (struct m48t35_rtc *)
- (KL_CONFIG_CH_CONS_INFO(master_nasid)->memory_base + IOC3_BYTEBUS_DEV0);
-
- printk(KERN_INFO "Real Time Clock Driver v%s\n", RTC_VERSION);
- if (misc_register(&rtc_dev)) {
- printk(KERN_ERR "rtc: cannot register misc device.\n");
- return -ENODEV;
- }
- if (!create_proc_read_entry("driver/rtc", 0, NULL, rtc_read_proc, NULL)) {
- printk(KERN_ERR "rtc: cannot create /proc/rtc.\n");
- misc_deregister(&rtc_dev);
- return -ENOENT;
- }
-
- rtc_freq = 1024;
-
- return 0;
-}
-
-static void __exit rtc_exit (void)
-{
- /* interrupts and timer disabled at this point by rtc_release */
-
- remove_proc_entry ("rtc", NULL);
- misc_deregister(&rtc_dev);
-}
-
-module_init(rtc_init);
-module_exit(rtc_exit);
-
-/*
- * Info exported via "/proc/rtc".
- */
-
-static int rtc_get_status(char *buf)
-{
- char *p;
- struct rtc_time tm;
-
- /*
- * Just emulate the standard /proc/rtc
- */
-
- p = buf;
-
- get_rtc_time(&tm);
-
- /*
- * There is no way to tell if the luser has the RTC set for local
- * time or for Universal Standard Time (GMT). Probably local though.
- */
- p += sprintf(p,
- "rtc_time\t: %02d:%02d:%02d\n"
- "rtc_date\t: %04d-%02d-%02d\n"
- "rtc_epoch\t: %04lu\n"
- "24hr\t\t: yes\n",
- tm.tm_hour, tm.tm_min, tm.tm_sec,
- tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, epoch);
-
- return p - buf;
-}
-
-static int rtc_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len = rtc_get_status(page);
- if (len <= off+count) *eof = 1;
- *start = page + off;
- len -= off;
- if (len>count) len = count;
- if (len<0) len = 0;
- return len;
-}
-
-static void get_rtc_time(struct rtc_time *rtc_tm)
-{
- /*
- * Do we need to wait for the last update to finish?
- */
-
- /*
- * Only the values that we read from the RTC are set. We leave
- * tm_wday, tm_yday and tm_isdst untouched. Even though the
- * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
- * by the RTC when initially set to a non-zero value.
- */
- spin_lock_irq(&rtc_lock);
- rtc->control |= M48T35_RTC_READ;
- rtc_tm->tm_sec = rtc->sec;
- rtc_tm->tm_min = rtc->min;
- rtc_tm->tm_hour = rtc->hour;
- rtc_tm->tm_mday = rtc->date;
- rtc_tm->tm_mon = rtc->month;
- rtc_tm->tm_year = rtc->year;
- rtc->control &= ~M48T35_RTC_READ;
- spin_unlock_irq(&rtc_lock);
-
- rtc_tm->tm_sec = bcd2bin(rtc_tm->tm_sec);
- rtc_tm->tm_min = bcd2bin(rtc_tm->tm_min);
- rtc_tm->tm_hour = bcd2bin(rtc_tm->tm_hour);
- rtc_tm->tm_mday = bcd2bin(rtc_tm->tm_mday);
- rtc_tm->tm_mon = bcd2bin(rtc_tm->tm_mon);
- rtc_tm->tm_year = bcd2bin(rtc_tm->tm_year);
-
- /*
- * Account for differences between how the RTC uses the values
- * and how they are defined in a struct rtc_time;
- */
- if ((rtc_tm->tm_year += (epoch - 1900)) <= 69)
- rtc_tm->tm_year += 100;
-
- rtc_tm->tm_mon--;
-}
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Corey Minyard <minyard@mvista.com>");
MODULE_DESCRIPTION("Linux device interface for the IPMI message handler.");
+MODULE_ALIAS("platform:ipmi_si");
/* Initialize the struct pcmcia_device structure */
/* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
+ link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
link->irq.IRQInfo1 = IRQ_LEVEL_ID;
link->irq.Handler = NULL;
Support for error detection and correction on the Intel
3000 and 3010 server chipsets.
+config EDAC_X38
+ tristate "Intel X38"
+ depends on EDAC_MM_EDAC && PCI && X86
+ help
+ Support for error detection and correction on the Intel
+ X38 server chipsets.
+
config EDAC_I82860
tristate "Intel 82860"
depends on EDAC_MM_EDAC && PCI && X86_32
obj-$(CONFIG_EDAC_I82875P) += i82875p_edac.o
obj-$(CONFIG_EDAC_I82975X) += i82975x_edac.o
obj-$(CONFIG_EDAC_I3000) += i3000_edac.o
+obj-$(CONFIG_EDAC_X38) += x38_edac.o
obj-$(CONFIG_EDAC_I82860) += i82860_edac.o
obj-$(CONFIG_EDAC_R82600) += r82600_edac.o
obj-$(CONFIG_EDAC_PASEMI) += pasemi_edac.o
*/
#undef DEBUG
+#include <linux/edac.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/platform_device.h>
if (regs == NULL)
return -ENODEV;
+ edac_op_state = EDAC_OPSTATE_POLL;
+
/* Get channel population */
reg = in_be64(®s->mic_mnt_cfg);
dev_dbg(&pdev->dev, "MIC_MNT_CFG = 0x%016lx\n", reg);
--- /dev/null
+/*
+ * Intel X38 Memory Controller kernel module
+ * Copyright (C) 2008 Cluster Computing, Inc.
+ *
+ * This file may be distributed under the terms of the
+ * GNU General Public License.
+ *
+ * This file is based on i3200_edac.c
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
+#include <linux/slab.h>
+#include <linux/edac.h>
+#include "edac_core.h"
+
+#define X38_REVISION "1.1"
+
+#define EDAC_MOD_STR "x38_edac"
+
+#define PCI_DEVICE_ID_INTEL_X38_HB 0x29e0
+
+#define X38_RANKS 8
+#define X38_RANKS_PER_CHANNEL 4
+#define X38_CHANNELS 2
+
+/* Intel X38 register addresses - device 0 function 0 - DRAM Controller */
+
+#define X38_MCHBAR_LOW 0x48 /* MCH Memory Mapped Register BAR */
+#define X38_MCHBAR_HIGH 0x4b
+#define X38_MCHBAR_MASK 0xfffffc000ULL /* bits 35:14 */
+#define X38_MMR_WINDOW_SIZE 16384
+
+#define X38_TOM 0xa0 /* Top of Memory (16b)
+ *
+ * 15:10 reserved
+ * 9:0 total populated physical memory
+ */
+#define X38_TOM_MASK 0x3ff /* bits 9:0 */
+#define X38_TOM_SHIFT 26 /* 64MiB grain */
+
+#define X38_ERRSTS 0xc8 /* Error Status Register (16b)
+ *
+ * 15 reserved
+ * 14 Isochronous TBWRR Run Behind FIFO Full
+ * (ITCV)
+ * 13 Isochronous TBWRR Run Behind FIFO Put
+ * (ITSTV)
+ * 12 reserved
+ * 11 MCH Thermal Sensor Event
+ * for SMI/SCI/SERR (GTSE)
+ * 10 reserved
+ * 9 LOCK to non-DRAM Memory Flag (LCKF)
+ * 8 reserved
+ * 7 DRAM Throttle Flag (DTF)
+ * 6:2 reserved
+ * 1 Multi-bit DRAM ECC Error Flag (DMERR)
+ * 0 Single-bit DRAM ECC Error Flag (DSERR)
+ */
+#define X38_ERRSTS_UE 0x0002
+#define X38_ERRSTS_CE 0x0001
+#define X38_ERRSTS_BITS (X38_ERRSTS_UE | X38_ERRSTS_CE)
+
+
+/* Intel MMIO register space - device 0 function 0 - MMR space */
+
+#define X38_C0DRB 0x200 /* Channel 0 DRAM Rank Boundary (16b x 4)
+ *
+ * 15:10 reserved
+ * 9:0 Channel 0 DRAM Rank Boundary Address
+ */
+#define X38_C1DRB 0x600 /* Channel 1 DRAM Rank Boundary (16b x 4) */
+#define X38_DRB_MASK 0x3ff /* bits 9:0 */
+#define X38_DRB_SHIFT 26 /* 64MiB grain */
+
+#define X38_C0ECCERRLOG 0x280 /* Channel 0 ECC Error Log (64b)
+ *
+ * 63:48 Error Column Address (ERRCOL)
+ * 47:32 Error Row Address (ERRROW)
+ * 31:29 Error Bank Address (ERRBANK)
+ * 28:27 Error Rank Address (ERRRANK)
+ * 26:24 reserved
+ * 23:16 Error Syndrome (ERRSYND)
+ * 15: 2 reserved
+ * 1 Multiple Bit Error Status (MERRSTS)
+ * 0 Correctable Error Status (CERRSTS)
+ */
+#define X38_C1ECCERRLOG 0x680 /* Channel 1 ECC Error Log (64b) */
+#define X38_ECCERRLOG_CE 0x1
+#define X38_ECCERRLOG_UE 0x2
+#define X38_ECCERRLOG_RANK_BITS 0x18000000
+#define X38_ECCERRLOG_SYNDROME_BITS 0xff0000
+
+#define X38_CAPID0 0xe0 /* see P.94 of spec for details */
+
+static int x38_channel_num;
+
+static int how_many_channel(struct pci_dev *pdev)
+{
+ unsigned char capid0_8b; /* 8th byte of CAPID0 */
+
+ pci_read_config_byte(pdev, X38_CAPID0 + 8, &capid0_8b);
+ if (capid0_8b & 0x20) { /* check DCD: Dual Channel Disable */
+ debugf0("In single channel mode.\n");
+ x38_channel_num = 1;
+ } else {
+ debugf0("In dual channel mode.\n");
+ x38_channel_num = 2;
+ }
+
+ return x38_channel_num;
+}
+
+static unsigned long eccerrlog_syndrome(u64 log)
+{
+ return (log & X38_ECCERRLOG_SYNDROME_BITS) >> 16;
+}
+
+static int eccerrlog_row(int channel, u64 log)
+{
+ return ((log & X38_ECCERRLOG_RANK_BITS) >> 27) |
+ (channel * X38_RANKS_PER_CHANNEL);
+}
+
+enum x38_chips {
+ X38 = 0,
+};
+
+struct x38_dev_info {
+ const char *ctl_name;
+};
+
+struct x38_error_info {
+ u16 errsts;
+ u16 errsts2;
+ u64 eccerrlog[X38_CHANNELS];
+};
+
+static const struct x38_dev_info x38_devs[] = {
+ [X38] = {
+ .ctl_name = "x38"},
+};
+
+static struct pci_dev *mci_pdev;
+static int x38_registered = 1;
+
+
+static void x38_clear_error_info(struct mem_ctl_info *mci)
+{
+ struct pci_dev *pdev;
+
+ pdev = to_pci_dev(mci->dev);
+
+ /*
+ * Clear any error bits.
+ * (Yes, we really clear bits by writing 1 to them.)
+ */
+ pci_write_bits16(pdev, X38_ERRSTS, X38_ERRSTS_BITS,
+ X38_ERRSTS_BITS);
+}
+
+static u64 x38_readq(const void __iomem *addr)
+{
+ return readl(addr) | (((u64)readl(addr + 4)) << 32);
+}
+
+static void x38_get_and_clear_error_info(struct mem_ctl_info *mci,
+ struct x38_error_info *info)
+{
+ struct pci_dev *pdev;
+ void __iomem *window = mci->pvt_info;
+
+ pdev = to_pci_dev(mci->dev);
+
+ /*
+ * This is a mess because there is no atomic way to read all the
+ * registers at once and the registers can transition from CE being
+ * overwritten by UE.
+ */
+ pci_read_config_word(pdev, X38_ERRSTS, &info->errsts);
+ if (!(info->errsts & X38_ERRSTS_BITS))
+ return;
+
+ info->eccerrlog[0] = x38_readq(window + X38_C0ECCERRLOG);
+ if (x38_channel_num == 2)
+ info->eccerrlog[1] = x38_readq(window + X38_C1ECCERRLOG);
+
+ pci_read_config_word(pdev, X38_ERRSTS, &info->errsts2);
+
+ /*
+ * If the error is the same for both reads then the first set
+ * of reads is valid. If there is a change then there is a CE
+ * with no info and the second set of reads is valid and
+ * should be UE info.
+ */
+ if ((info->errsts ^ info->errsts2) & X38_ERRSTS_BITS) {
+ info->eccerrlog[0] = x38_readq(window + X38_C0ECCERRLOG);
+ if (x38_channel_num == 2)
+ info->eccerrlog[1] =
+ x38_readq(window + X38_C1ECCERRLOG);
+ }
+
+ x38_clear_error_info(mci);
+}
+
+static void x38_process_error_info(struct mem_ctl_info *mci,
+ struct x38_error_info *info)
+{
+ int channel;
+ u64 log;
+
+ if (!(info->errsts & X38_ERRSTS_BITS))
+ return;
+
+ if ((info->errsts ^ info->errsts2) & X38_ERRSTS_BITS) {
+ edac_mc_handle_ce_no_info(mci, "UE overwrote CE");
+ info->errsts = info->errsts2;
+ }
+
+ for (channel = 0; channel < x38_channel_num; channel++) {
+ log = info->eccerrlog[channel];
+ if (log & X38_ECCERRLOG_UE) {
+ edac_mc_handle_ue(mci, 0, 0,
+ eccerrlog_row(channel, log), "x38 UE");
+ } else if (log & X38_ECCERRLOG_CE) {
+ edac_mc_handle_ce(mci, 0, 0,
+ eccerrlog_syndrome(log),
+ eccerrlog_row(channel, log), 0, "x38 CE");
+ }
+ }
+}
+
+static void x38_check(struct mem_ctl_info *mci)
+{
+ struct x38_error_info info;
+
+ debugf1("MC%d: %s()\n", mci->mc_idx, __func__);
+ x38_get_and_clear_error_info(mci, &info);
+ x38_process_error_info(mci, &info);
+}
+
+
+void __iomem *x38_map_mchbar(struct pci_dev *pdev)
+{
+ union {
+ u64 mchbar;
+ struct {
+ u32 mchbar_low;
+ u32 mchbar_high;
+ };
+ } u;
+ void __iomem *window;
+
+ pci_read_config_dword(pdev, X38_MCHBAR_LOW, &u.mchbar_low);
+ pci_write_config_dword(pdev, X38_MCHBAR_LOW, u.mchbar_low | 0x1);
+ pci_read_config_dword(pdev, X38_MCHBAR_HIGH, &u.mchbar_high);
+ u.mchbar &= X38_MCHBAR_MASK;
+
+ if (u.mchbar != (resource_size_t)u.mchbar) {
+ printk(KERN_ERR
+ "x38: mmio space beyond accessible range (0x%llx)\n",
+ (unsigned long long)u.mchbar);
+ return NULL;
+ }
+
+ window = ioremap_nocache(u.mchbar, X38_MMR_WINDOW_SIZE);
+ if (!window)
+ printk(KERN_ERR "x38: cannot map mmio space at 0x%llx\n",
+ (unsigned long long)u.mchbar);
+
+ return window;
+}
+
+
+static void x38_get_drbs(void __iomem *window,
+ u16 drbs[X38_CHANNELS][X38_RANKS_PER_CHANNEL])
+{
+ int i;
+
+ for (i = 0; i < X38_RANKS_PER_CHANNEL; i++) {
+ drbs[0][i] = readw(window + X38_C0DRB + 2*i) & X38_DRB_MASK;
+ drbs[1][i] = readw(window + X38_C1DRB + 2*i) & X38_DRB_MASK;
+ }
+}
+
+static bool x38_is_stacked(struct pci_dev *pdev,
+ u16 drbs[X38_CHANNELS][X38_RANKS_PER_CHANNEL])
+{
+ u16 tom;
+
+ pci_read_config_word(pdev, X38_TOM, &tom);
+ tom &= X38_TOM_MASK;
+
+ return drbs[X38_CHANNELS - 1][X38_RANKS_PER_CHANNEL - 1] == tom;
+}
+
+static unsigned long drb_to_nr_pages(
+ u16 drbs[X38_CHANNELS][X38_RANKS_PER_CHANNEL],
+ bool stacked, int channel, int rank)
+{
+ int n;
+
+ n = drbs[channel][rank];
+ if (rank > 0)
+ n -= drbs[channel][rank - 1];
+ if (stacked && (channel == 1) && drbs[channel][rank] ==
+ drbs[channel][X38_RANKS_PER_CHANNEL - 1]) {
+ n -= drbs[0][X38_RANKS_PER_CHANNEL - 1];
+ }
+
+ n <<= (X38_DRB_SHIFT - PAGE_SHIFT);
+ return n;
+}
+
+static int x38_probe1(struct pci_dev *pdev, int dev_idx)
+{
+ int rc;
+ int i;
+ struct mem_ctl_info *mci = NULL;
+ unsigned long last_page;
+ u16 drbs[X38_CHANNELS][X38_RANKS_PER_CHANNEL];
+ bool stacked;
+ void __iomem *window;
+
+ debugf0("MC: %s()\n", __func__);
+
+ window = x38_map_mchbar(pdev);
+ if (!window)
+ return -ENODEV;
+
+ x38_get_drbs(window, drbs);
+
+ how_many_channel(pdev);
+
+ /* FIXME: unconventional pvt_info usage */
+ mci = edac_mc_alloc(0, X38_RANKS, x38_channel_num, 0);
+ if (!mci)
+ return -ENOMEM;
+
+ debugf3("MC: %s(): init mci\n", __func__);
+
+ mci->dev = &pdev->dev;
+ mci->mtype_cap = MEM_FLAG_DDR2;
+
+ mci->edac_ctl_cap = EDAC_FLAG_SECDED;
+ mci->edac_cap = EDAC_FLAG_SECDED;
+
+ mci->mod_name = EDAC_MOD_STR;
+ mci->mod_ver = X38_REVISION;
+ mci->ctl_name = x38_devs[dev_idx].ctl_name;
+ mci->dev_name = pci_name(pdev);
+ mci->edac_check = x38_check;
+ mci->ctl_page_to_phys = NULL;
+ mci->pvt_info = window;
+
+ stacked = x38_is_stacked(pdev, drbs);
+
+ /*
+ * The dram rank boundary (DRB) reg values are boundary addresses
+ * for each DRAM rank with a granularity of 64MB. DRB regs are
+ * cumulative; the last one will contain the total memory
+ * contained in all ranks.
+ */
+ last_page = -1UL;
+ for (i = 0; i < mci->nr_csrows; i++) {
+ unsigned long nr_pages;
+ struct csrow_info *csrow = &mci->csrows[i];
+
+ nr_pages = drb_to_nr_pages(drbs, stacked,
+ i / X38_RANKS_PER_CHANNEL,
+ i % X38_RANKS_PER_CHANNEL);
+
+ if (nr_pages == 0) {
+ csrow->mtype = MEM_EMPTY;
+ continue;
+ }
+
+ csrow->first_page = last_page + 1;
+ last_page += nr_pages;
+ csrow->last_page = last_page;
+ csrow->nr_pages = nr_pages;
+
+ csrow->grain = nr_pages << PAGE_SHIFT;
+ csrow->mtype = MEM_DDR2;
+ csrow->dtype = DEV_UNKNOWN;
+ csrow->edac_mode = EDAC_UNKNOWN;
+ }
+
+ x38_clear_error_info(mci);
+
+ rc = -ENODEV;
+ if (edac_mc_add_mc(mci)) {
+ debugf3("MC: %s(): failed edac_mc_add_mc()\n", __func__);
+ goto fail;
+ }
+
+ /* get this far and it's successful */
+ debugf3("MC: %s(): success\n", __func__);
+ return 0;
+
+fail:
+ iounmap(window);
+ if (mci)
+ edac_mc_free(mci);
+
+ return rc;
+}
+
+static int __devinit x38_init_one(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ int rc;
+
+ debugf0("MC: %s()\n", __func__);
+
+ if (pci_enable_device(pdev) < 0)
+ return -EIO;
+
+ rc = x38_probe1(pdev, ent->driver_data);
+ if (!mci_pdev)
+ mci_pdev = pci_dev_get(pdev);
+
+ return rc;
+}
+
+static void __devexit x38_remove_one(struct pci_dev *pdev)
+{
+ struct mem_ctl_info *mci;
+
+ debugf0("%s()\n", __func__);
+
+ mci = edac_mc_del_mc(&pdev->dev);
+ if (!mci)
+ return;
+
+ iounmap(mci->pvt_info);
+
+ edac_mc_free(mci);
+}
+
+static const struct pci_device_id x38_pci_tbl[] __devinitdata = {
+ {
+ PCI_VEND_DEV(INTEL, X38_HB), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ X38},
+ {
+ 0,
+ } /* 0 terminated list. */
+};
+
+MODULE_DEVICE_TABLE(pci, x38_pci_tbl);
+
+static struct pci_driver x38_driver = {
+ .name = EDAC_MOD_STR,
+ .probe = x38_init_one,
+ .remove = __devexit_p(x38_remove_one),
+ .id_table = x38_pci_tbl,
+};
+
+static int __init x38_init(void)
+{
+ int pci_rc;
+
+ debugf3("MC: %s()\n", __func__);
+
+ /* Ensure that the OPSTATE is set correctly for POLL or NMI */
+ opstate_init();
+
+ pci_rc = pci_register_driver(&x38_driver);
+ if (pci_rc < 0)
+ goto fail0;
+
+ if (!mci_pdev) {
+ x38_registered = 0;
+ mci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
+ PCI_DEVICE_ID_INTEL_X38_HB, NULL);
+ if (!mci_pdev) {
+ debugf0("x38 pci_get_device fail\n");
+ pci_rc = -ENODEV;
+ goto fail1;
+ }
+
+ pci_rc = x38_init_one(mci_pdev, x38_pci_tbl);
+ if (pci_rc < 0) {
+ debugf0("x38 init fail\n");
+ pci_rc = -ENODEV;
+ goto fail1;
+ }
+ }
+
+ return 0;
+
+fail1:
+ pci_unregister_driver(&x38_driver);
+
+fail0:
+ if (mci_pdev)
+ pci_dev_put(mci_pdev);
+
+ return pci_rc;
+}
+
+static void __exit x38_exit(void)
+{
+ debugf3("MC: %s()\n", __func__);
+
+ pci_unregister_driver(&x38_driver);
+ if (!x38_registered) {
+ x38_remove_one(mci_pdev);
+ pci_dev_put(mci_pdev);
+ }
+}
+
+module_init(x38_init);
+module_exit(x38_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Cluster Computing, Inc. Hitoshi Mitake");
+MODULE_DESCRIPTION("MC support for Intel X38 memory hub controllers");
+
+module_param(edac_op_state, int, 0444);
+MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI");
{ HID_USB_DEVICE(USB_VENDOR_ID_DELL, USB_DEVICE_ID_DELL_W7658) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DELL, USB_DEVICE_ID_DELL_SK8115) },
{ HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_GENERIC_13BA, USB_DEVICE_ID_GENERIC_13BA_KBD_MOUSE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
static const struct hid_device_id dell_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_DELL, USB_DEVICE_ID_DELL_W7658) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DELL, USB_DEVICE_ID_DELL_SK8115) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_GENERIC_13BA, USB_DEVICE_ID_GENERIC_13BA_KBD_MOUSE) },
{ }
};
MODULE_DEVICE_TABLE(hid, dell_devices);
#define USB_VENDOR_ID_GENERAL_TOUCH 0x0dfc
+#define USB_VENDOR_ID_GENERIC_13BA 0x13ba
+#define USB_DEVICE_ID_GENERIC_13BA_KBD_MOUSE 0x0017
+
#define USB_VENDOR_ID_GLAB 0x06c2
#define USB_DEVICE_ID_4_PHIDGETSERVO_30 0x0038
#define USB_DEVICE_ID_1_PHIDGETSERVO_30 0x0039
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/mm.h>
+#include <linux/mutex.h>
#include <linux/smp_lock.h>
#include <linux/spinlock.h>
#include <asm/unaligned.h>
struct usb_interface *intf = to_usb_interface(hid->dev.parent);
struct usb_host_interface *interface = intf->cur_altsetting;
struct usb_device *dev = interface_to_usbdev(intf);
- struct usbhid_device *usbhid;
+ struct usbhid_device *usbhid = hid->driver_data;
unsigned int n, insize = 0;
int ret;
- WARN_ON(hid->driver_data);
-
- usbhid = kzalloc(sizeof(struct usbhid_device), GFP_KERNEL);
- if (usbhid == NULL) {
- ret = -ENOMEM;
- goto err;
- }
-
- hid->driver_data = usbhid;
- usbhid->hid = hid;
-
usbhid->bufsize = HID_MIN_BUFFER_SIZE;
hid_find_max_report(hid, HID_INPUT_REPORT, &usbhid->bufsize);
hid_find_max_report(hid, HID_OUTPUT_REPORT, &usbhid->bufsize);
if (insize > HID_MAX_BUFFER_SIZE)
insize = HID_MAX_BUFFER_SIZE;
+ mutex_lock(&usbhid->setup);
if (hid_alloc_buffers(dev, hid)) {
ret = -ENOMEM;
goto fail;
usbhid_init_reports(hid);
hid_dump_device(hid);
+ set_bit(HID_STARTED, &usbhid->iofl);
+ mutex_unlock(&usbhid->setup);
+
return 0;
fail:
usb_free_urb(usbhid->urbout);
usb_free_urb(usbhid->urbctrl);
hid_free_buffers(dev, hid);
- kfree(usbhid);
-err:
+ mutex_unlock(&usbhid->setup);
return ret;
}
if (WARN_ON(!usbhid))
return;
+ mutex_lock(&usbhid->setup);
+ clear_bit(HID_STARTED, &usbhid->iofl);
spin_lock_irq(&usbhid->inlock); /* Sync with error handler */
set_bit(HID_DISCONNECTED, &usbhid->iofl);
spin_unlock_irq(&usbhid->inlock);
usb_free_urb(usbhid->urbout);
hid_free_buffers(hid_to_usb_dev(hid), hid);
- kfree(usbhid);
- hid->driver_data = NULL;
+ mutex_unlock(&usbhid->setup);
}
static struct hid_ll_driver usb_hid_driver = {
static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
struct usb_device *dev = interface_to_usbdev(intf);
+ struct usbhid_device *usbhid;
struct hid_device *hid;
size_t len;
int ret;
if (usb_string(dev, dev->descriptor.iSerialNumber, hid->uniq, 64) <= 0)
hid->uniq[0] = 0;
+ usbhid = kzalloc(sizeof(*usbhid), GFP_KERNEL);
+ if (usbhid == NULL) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ hid->driver_data = usbhid;
+ usbhid->hid = hid;
+ mutex_init(&usbhid->setup); /* needed on suspend/resume */
+
ret = hid_add_device(hid);
if (ret) {
if (ret != -ENODEV)
dev_err(&intf->dev, "can't add hid device: %d\n", ret);
- goto err;
+ goto err_free;
}
return 0;
+err_free:
+ kfree(usbhid);
err:
hid_destroy_device(hid);
return ret;
static void hid_disconnect(struct usb_interface *intf)
{
struct hid_device *hid = usb_get_intfdata(intf);
+ struct usbhid_device *usbhid;
if (WARN_ON(!hid))
return;
+ usbhid = hid->driver_data;
hid_destroy_device(hid);
+ kfree(usbhid);
}
static int hid_suspend(struct usb_interface *intf, pm_message_t message)
struct hid_device *hid = usb_get_intfdata (intf);
struct usbhid_device *usbhid = hid->driver_data;
+ mutex_lock(&usbhid->setup);
+ if (!test_bit(HID_STARTED, &usbhid->iofl)) {
+ mutex_unlock(&usbhid->setup);
+ return 0;
+ }
+
spin_lock_irq(&usbhid->inlock); /* Sync with error handler */
set_bit(HID_SUSPENDED, &usbhid->iofl);
spin_unlock_irq(&usbhid->inlock);
- del_timer(&usbhid->io_retry);
+ del_timer_sync(&usbhid->io_retry);
usb_kill_urb(usbhid->urbin);
+ mutex_unlock(&usbhid->setup);
dev_dbg(&intf->dev, "suspend\n");
return 0;
}
struct usbhid_device *usbhid = hid->driver_data;
int status;
+ mutex_lock(&usbhid->setup);
+ if (!test_bit(HID_STARTED, &usbhid->iofl)) {
+ mutex_unlock(&usbhid->setup);
+ return 0;
+ }
+
clear_bit(HID_SUSPENDED, &usbhid->iofl);
usbhid->retry_delay = 0;
status = hid_start_in(hid);
+ mutex_unlock(&usbhid->setup);
dev_dbg(&intf->dev, "resume status %d\n", status);
return status;
}
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/list.h>
+#include <linux/mutex.h>
#include <linux/timer.h>
#include <linux/wait.h>
#include <linux/workqueue.h>
dma_addr_t outbuf_dma; /* Output buffer dma */
spinlock_t outlock; /* Output fifo spinlock */
+ struct mutex setup;
unsigned long iofl; /* I/O flags (CTRL_RUNNING, OUT_RUNNING) */
struct timer_list io_retry; /* Retry timer */
unsigned long stop_retry; /* Time to give up, in jiffies */
unsigned long timeout;
int ret;
- if (!readl(i2c->regs + S3C2410_IICCON) & S3C2410_IICCON_IRQEN)
+ if (!(readl(i2c->regs + S3C2410_IICCON) & S3C2410_IICCON_IRQEN))
return -EIO;
ret = s3c24xx_i2c_set_master(i2c);
static struct i2c_adapter scx200_i2c_ops = {
.owner = THIS_MODULE,
+ .class = I2C_CLASS_HWMON | I2C_CLASS_SPD,
.id = I2C_HW_B_SCX200,
.algo_data = &scx200_i2c_data,
.name = "NatSemi SCx200 I2C",
offset = DA9030_LED_OFFSET(led->id);
val = led->flags & ~0x87;
val |= (led->new_brightness) ? 0x80 : 0; /* EN bit */
- val |= (led->new_brightness >> 5) & 0x7; /* PWM<2:0> */
+ val |= (0x7 - (led->new_brightness >> 5)) & 0x7; /* PWM<2:0> */
da903x_write(led->master, DA9030_LED1_CONTROL + offset, val);
break;
case DA9030_ID_VIBRA:
return;
if (!ms->log_failure) {
- while ((bio = bio_list_pop(failures)))
+ while ((bio = bio_list_pop(failures))) {
ms->in_sync = 0;
dm_rh_mark_nosync(ms->rh, bio, bio->bi_size, 0);
+ }
return;
}
*/
static int register_snapshot(struct dm_snapshot *snap)
{
- struct origin *o;
+ struct origin *o, *new_o;
struct block_device *bdev = snap->origin->bdev;
+ new_o = kmalloc(sizeof(*new_o), GFP_KERNEL);
+ if (!new_o)
+ return -ENOMEM;
+
down_write(&_origins_lock);
o = __lookup_origin(bdev);
- if (!o) {
+ if (o)
+ kfree(new_o);
+ else {
/* New origin */
- o = kmalloc(sizeof(*o), GFP_KERNEL);
- if (!o) {
- up_write(&_origins_lock);
- return -ENOMEM;
- }
+ o = new_o;
/* Initialise the struct */
INIT_LIST_HEAD(&o->snapshots);
struct dm_snap_pending_exception *pe = mempool_alloc(s->pending_pool,
GFP_NOIO);
+ atomic_inc(&s->pending_exceptions_count);
pe->snap = s;
return pe;
static void free_pending_exception(struct dm_snap_pending_exception *pe)
{
- mempool_free(pe, pe->snap->pending_pool);
+ struct dm_snapshot *s = pe->snap;
+
+ mempool_free(pe, s->pending_pool);
+ smp_mb__before_atomic_dec();
+ atomic_dec(&s->pending_exceptions_count);
}
static void insert_completed_exception(struct dm_snapshot *s,
s->valid = 1;
s->active = 0;
+ atomic_set(&s->pending_exceptions_count, 0);
init_rwsem(&s->lock);
spin_lock_init(&s->pe_lock);
s->ti = ti;
/* After this returns there can be no new kcopyd jobs. */
unregister_snapshot(s);
+ while (atomic_read(&s->pending_exceptions_count))
+ yield();
+ /*
+ * Ensure instructions in mempool_destroy aren't reordered
+ * before atomic_read.
+ */
+ smp_mb();
+
#ifdef CONFIG_DM_DEBUG
for (i = 0; i < DM_TRACKED_CHUNK_HASH_SIZE; i++)
BUG_ON(!hlist_empty(&s->tracked_chunk_hash[i]));
mempool_t *pending_pool;
+ atomic_t pending_exceptions_count;
+
struct exception_table pending;
struct exception_table complete;
if (mode == 0) {
mdk_rdev_t *rdev;
struct list_head *tmp;
+ struct block_device *bdev;
printk(KERN_INFO "md: %s stopped.\n", mdname(mddev));
mddev->degraded = 0;
mddev->barriers_work = 0;
mddev->safemode = 0;
+ bdev = bdget_disk(mddev->gendisk, 0);
+ if (bdev) {
+ blkdev_ioctl(bdev, 0, BLKRRPART, 0);
+ bdput(bdev);
+ }
+ kobject_uevent(&disk_to_dev(mddev->gendisk)->kobj, KOBJ_CHANGE);
} else if (mddev->pers)
printk(KERN_INFO "md: %s switched to read-only mode.\n",
/**
* i2o_block_open - Open the block device
- * @inode: inode for block device being opened
- * @file: file to open
+ * @bdev: block device being opened
+ * @mode: file open mode
*
* Power up the device, mount and lock the media. This function is called,
* if the block device is opened for access.
/**
* i2o_block_release - Release the I2O block device
- * @inode: inode for block device being released
- * @file: file to close
+ * @disk: gendisk device being released
+ * @mode: file open mode
*
* Unlock and unmount the media, and power down the device. Gets called if
* the block device is closed.
/**
* i2o_block_ioctl - Issue device specific ioctl calls.
- * @inode: inode for block device ioctl
- * @file: file for ioctl
+ * @bdev: block device being opened
+ * @mode: file open mode
* @cmd: ioctl command
* @arg: arg
*
if (!hdpu_chassis_id)
printk(KERN_WARNING "sky_nexus: "
"Unable to create proc dir entry: sky_chassis_id\n");
- }
return 0;
}
obj-$(CONFIG_SGI_XP) += xp.o
xp-y := xp_main.o
xp-$(CONFIG_IA64_SGI_SN2) += xp_sn2.o xp_nofault.o
-xp-$(CONFIG_IA64_GENERIC) += xp_sn2.o xp_nofault.o xp_uv.o
+xp-$(CONFIG_IA64_GENERIC) += xp_sn2.o xp_nofault.o
xp-$(CONFIG_IA64_SGI_UV) += xp_uv.o
xp-$(CONFIG_X86_64) += xp_uv.o
obj-$(CONFIG_SGI_XP) += xpc.o
xpc-y := xpc_main.o xpc_channel.o xpc_partition.o
xpc-$(CONFIG_IA64_SGI_SN2) += xpc_sn2.o
-xpc-$(CONFIG_IA64_GENERIC) += xpc_sn2.o xpc_uv.o
+xpc-$(CONFIG_IA64_GENERIC) += xpc_sn2.o
xpc-$(CONFIG_IA64_SGI_UV) += xpc_uv.o
xpc-$(CONFIG_X86_64) += xpc_uv.o
#include <asm/system.h>
#include <asm/sn/arch.h> /* defines is_shub1() and is_shub2() */
#define is_shub() ia64_platform_is("sn2")
+#ifdef CONFIG_IA64_SGI_UV
#define is_uv() ia64_platform_is("uv")
+#else
+#define is_uv() 0
+#endif
#endif
#ifdef CONFIG_X86_64
#include <asm/genapic.h>
if (is_shub())
xpc_exit_sn2();
- else
+ else if (is_uv())
xpc_exit_uv();
}
out_1:
if (is_shub())
xpc_exit_sn2();
- else
+ else if (is_uv())
xpc_exit_uv();
return ret;
}
*/
static int sony_pic_disable(struct acpi_device *device)
{
- if (ACPI_FAILURE(acpi_evaluate_object(device->handle,
- "_DIS", NULL, NULL)))
+ acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
+ NULL);
+
+ if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
return -ENXIO;
dprintk("Device disabled\n");
static void mmci_request(struct mmc_host *mmc, struct mmc_request *mrq)
{
struct mmci_host *host = mmc_priv(mmc);
+ unsigned long flags;
WARN_ON(host->mrq != NULL);
return;
}
- spin_lock_irq(&host->lock);
+ spin_lock_irqsave(&host->lock, flags);
host->mrq = mrq;
mmci_start_command(host, mrq->cmd, 0);
- spin_unlock_irq(&host->lock);
+ spin_unlock_irqrestore(&host->lock, flags);
}
static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
} while(intr0 & RINT0);
- /* Receive descriptor is empty now */
- spin_lock_irqsave(&lp->lock, flags);
- __netif_rx_complete(dev, napi);
- writel(VAL0|RINTEN0, mmio + INTEN0);
- writel(VAL2 | RDMD0, mmio + CMD0);
- spin_unlock_irqrestore(&lp->lock, flags);
+ if (rx_pkt_limit > 0) {
+ /* Receive descriptor is empty now */
+ spin_lock_irqsave(&lp->lock, flags);
+ __netif_rx_complete(dev, napi);
+ writel(VAL0|RINTEN0, mmio + INTEN0);
+ writel(VAL2 | RDMD0, mmio + CMD0);
+ spin_unlock_irqrestore(&lp->lock, flags);
+ }
rx_not_empty:
return num_rx_pkt;
#include <asm/io.h>
#define DRV_NAME "ehea"
-#define DRV_VERSION "EHEA_0094"
+#define DRV_VERSION "EHEA_0095"
/* eHEA capability flags */
#define DLPAR_PORT_ADD_REM 1
}
}
-static int ehea_update_busmap(unsigned long pfn, unsigned long pgnum, int add)
+static int ehea_update_busmap(unsigned long pfn, unsigned long nr_pages, int add)
{
unsigned long i, start_section, end_section;
+ if (!nr_pages)
+ return 0;
+
if (!ehea_bmap) {
ehea_bmap = kzalloc(sizeof(struct ehea_bmap), GFP_KERNEL);
if (!ehea_bmap)
}
start_section = (pfn * PAGE_SIZE) / EHEA_SECTSIZE;
- end_section = start_section + ((pgnum * PAGE_SIZE) / EHEA_SECTSIZE);
+ end_section = start_section + ((nr_pages * PAGE_SIZE) / EHEA_SECTSIZE);
/* Mark entries as valid or invalid only; address is assigned later */
for (i = start_section; i < end_section; i++) {
u64 flag;
return ret;
}
-static int ehea_create_busmap_callback(unsigned long pfn,
- unsigned long nr_pages, void *arg)
+static int ehea_is_hugepage(unsigned long pfn)
+{
+ int page_order;
+
+ if (pfn & EHEA_HUGEPAGE_PFN_MASK)
+ return 0;
+
+ page_order = compound_order(pfn_to_page(pfn));
+ if (page_order + PAGE_SHIFT != EHEA_HUGEPAGESHIFT)
+ return 0;
+
+ return 1;
+}
+
+static int ehea_create_busmap_callback(unsigned long initial_pfn,
+ unsigned long total_nr_pages, void *arg)
{
- return ehea_update_busmap(pfn, nr_pages, EHEA_BUSMAP_ADD_SECT);
+ int ret;
+ unsigned long pfn, start_pfn, end_pfn, nr_pages;
+
+ if ((total_nr_pages * PAGE_SIZE) < EHEA_HUGEPAGE_SIZE)
+ return ehea_update_busmap(initial_pfn, total_nr_pages,
+ EHEA_BUSMAP_ADD_SECT);
+
+ /* Given chunk is >= 16GB -> check for hugepages */
+ start_pfn = initial_pfn;
+ end_pfn = initial_pfn + total_nr_pages;
+ pfn = start_pfn;
+
+ while (pfn < end_pfn) {
+ if (ehea_is_hugepage(pfn)) {
+ /* Add mem found in front of the hugepage */
+ nr_pages = pfn - start_pfn;
+ ret = ehea_update_busmap(start_pfn, nr_pages,
+ EHEA_BUSMAP_ADD_SECT);
+ if (ret)
+ return ret;
+
+ /* Skip the hugepage */
+ pfn += (EHEA_HUGEPAGE_SIZE / PAGE_SIZE);
+ start_pfn = pfn;
+ } else
+ pfn += (EHEA_SECTSIZE / PAGE_SIZE);
+ }
+
+ /* Add mem found behind the hugepage(s) */
+ nr_pages = pfn - start_pfn;
+ return ehea_update_busmap(start_pfn, nr_pages, EHEA_BUSMAP_ADD_SECT);
}
int ehea_create_busmap(void)
#define EHEA_PAGESIZE (1UL << EHEA_PAGESHIFT)
#define EHEA_SECTSIZE (1UL << 24)
#define EHEA_PAGES_PER_SECTION (EHEA_SECTSIZE >> EHEA_PAGESHIFT)
+#define EHEA_HUGEPAGESHIFT 34
+#define EHEA_HUGEPAGE_SIZE (1UL << EHEA_HUGEPAGESHIFT)
+#define EHEA_HUGEPAGE_PFN_MASK ((EHEA_HUGEPAGE_SIZE - 1) >> PAGE_SHIFT)
#if ((1UL << SECTION_SIZE_BITS) < EHEA_SECTSIZE)
#error eHEA module cannot work if kernel sectionsize < ehea sectionsize
of_device_is_compatible(np, "ibm,emac-440gr"))
dev->features |= EMAC_FTR_440EP_PHY_CLK_FIX;
if (of_device_is_compatible(np, "ibm,emac-405ez")) {
-#ifdef CONFIG_IBM_NEW_EMAC_NO_FLOW_CONTROL
+#ifdef CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL
dev->features |= EMAC_FTR_NO_FLOW_CONTROL_40x;
#else
printk(KERN_ERR "%s: Flow control not disabled!\n",
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
-#include <linux/cpumask.h>
#include <linux/mlx4/driver.h>
#include <linux/mlx4/device.h>
#define QUERY_PORT_ETH_MTU_OFFSET 0x02
#define QUERY_PORT_WIDTH_OFFSET 0x06
#define QUERY_PORT_MAX_GID_PKEY_OFFSET 0x07
-#define QUERY_PORT_MAC_OFFSET 0x08
#define QUERY_PORT_MAX_MACVLAN_OFFSET 0x0a
#define QUERY_PORT_MAX_VL_OFFSET 0x0b
+#define QUERY_PORT_MAC_OFFSET 0x10
for (i = 1; i <= dev_cap->num_ports; ++i) {
err = mlx4_cmd_box(dev, 0, mailbox->dma, i, 0, MLX4_CMD_QUERY_PORT,
/* Allocate Tx/Rx descriptor memory */
db->desc_pool_ptr = pci_alloc_consistent(pdev, sizeof(struct tx_desc) *
DESC_ALL_CNT + 0x20, &db->desc_pool_dma_ptr);
+ if (!db->desc_pool_ptr)
+ goto err_out_res;
db->buf_pool_ptr = pci_alloc_consistent(pdev, TX_BUF_ALLOC *
TX_DESC_CNT + 4, &db->buf_pool_dma_ptr);
+ if (!db->buf_pool_ptr)
+ goto err_out_free_desc;
db->first_tx_desc = (struct tx_desc *) db->desc_pool_ptr;
db->first_tx_desc_dma = db->desc_pool_dma_ptr;
err = register_netdev (dev);
if (err)
- goto err_out_res;
+ goto err_out_free_buf;
printk(KERN_INFO "%s: Davicom DM%04lx at pci%s, "
"%s, irq %d.\n",
return 0;
+err_out_free_buf:
+ pci_free_consistent(pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4,
+ db->buf_pool_ptr, db->buf_pool_dma_ptr);
+err_out_free_desc:
+ pci_free_consistent(pdev, sizeof(struct tx_desc) * DESC_ALL_CNT + 0x20,
+ db->desc_pool_ptr, db->desc_pool_dma_ptr);
err_out_res:
pci_release_regions(pdev);
err_out_disable:
dm_write_reg_async(dev, DM_RX_CTRL, rx_ctl);
}
+static int dm9601_set_mac_address(struct net_device *net, void *p)
+{
+ struct sockaddr *addr = p;
+ struct usbnet *dev = netdev_priv(net);
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EINVAL;
+
+ memcpy(net->dev_addr, addr->sa_data, net->addr_len);
+ dm_write_async(dev, DM_PHY_ADDR, net->addr_len, net->dev_addr);
+
+ return 0;
+}
+
static int dm9601_bind(struct usbnet *dev, struct usb_interface *intf)
{
int ret;
dev->net->do_ioctl = dm9601_ioctl;
dev->net->set_multicast_list = dm9601_set_multicast;
+ dev->net->set_mac_address = dm9601_set_mac_address;
dev->net->ethtool_ops = &dm9601_ethtool_ops;
dev->net->hard_header_len += DM_TX_OVERHEAD;
dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
* we don't duplicate code for each option.
*/
-static void __devinit velocity_set_int_opt(int *opt, int val, int min, int max, int def, char *name, char *devname)
+static void __devinit velocity_set_int_opt(int *opt, int val, int min, int max, int def, char *name, const char *devname)
{
if (val == -1)
*opt = def;
* we don't duplicate code for each option.
*/
-static void __devinit velocity_set_bool_opt(u32 * opt, int val, int def, u32 flag, char *name, char *devname)
+static void __devinit velocity_set_bool_opt(u32 * opt, int val, int def, u32 flag, char *name, const char *devname)
{
(*opt) &= (~flag);
if (val == -1)
* for the current device
*/
-static void __devinit velocity_get_options(struct velocity_opt *opts, int index, char *devname)
+static void __devinit velocity_get_options(struct velocity_opt *opts, int index, const char *devname)
{
velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname);
static int first = 1;
struct net_device *dev;
int i;
+ const char *drv_string;
const struct velocity_info_tbl *info = &chip_info_table[ent->driver_data];
struct velocity_info *vptr;
struct mac_regs __iomem * regs;
dev->dev_addr[i] = readb(®s->PAR[i]);
- velocity_get_options(&vptr->options, velocity_nics, dev->name);
+ drv_string = dev_driver_string(&pdev->dev);
+
+ velocity_get_options(&vptr->options, velocity_nics, drv_string);
/*
* Mask out the options cannot be set to the chip
case CISCO_ADDR_REQ:
/* Stolen from net/ipv4/devinet.c -- SIOCGIFADDR ioctl */
{
- struct in_device *in_dev;
- struct in_ifaddr *ifa;
__be32 addr = 0, mask = htonl(~0U); /* FIXME: is the mask correct? */
#ifdef CONFIG_INET
+ struct in_device *in_dev;
+ struct in_ifaddr *ifa;
+
rcu_read_lock();
if ((in_dev = __in_dev_get_rcu(dev)) != NULL)
{
{
struct ieee80211_hw *hw = pci_get_drvdata(pdev);
struct ath5k_softc *sc = hw->priv;
- struct ath5k_hw *ah = sc->ah;
- int i, err;
+ int err;
pci_restore_state(pdev);
goto err_irq;
ath5k_led_enable(sc);
- /*
- * Reset the key cache since some parts do not
- * reset the contents on initial power up or resume.
- *
- * FIXME: This may need to be revisited when mac80211 becomes
- * aware of suspend/resume.
- */
- for (i = 0; i < AR5K_KEYTABLE_SIZE; i++)
- ath5k_hw_reset_key(ah, i);
-
return 0;
err_irq:
free_irq(pdev->irq, sc);
struct ath5k_softc *sc = hw->priv;
struct ath5k_hw *ah = sc->ah;
u8 mac[ETH_ALEN];
- unsigned int i;
int ret;
ATH5K_DBG(sc, ATH5K_DEBUG_ANY, "devid 0x%x\n", pdev->device);
if (ret > 0)
__set_bit(ATH_STAT_MRRETRY, sc->status);
- /*
- * Reset the key cache since some parts do not
- * reset the contents on initial power up.
- */
- for (i = 0; i < AR5K_KEYTABLE_SIZE; i++)
- ath5k_hw_reset_key(ah, i);
-
/*
* Collect the channel list. The 802.11 layer
* is resposible for filtering this list based
static int
ath5k_init(struct ath5k_softc *sc, bool is_resume)
{
- int ret;
+ struct ath5k_hw *ah = sc->ah;
+ int ret, i;
mutex_lock(&sc->lock);
if (ret)
goto done;
+ /*
+ * Reset the key cache since some parts do not reset the
+ * contents on initial power up or resume from suspend.
+ */
+ for (i = 0; i < AR5K_KEYTABLE_SIZE; i++)
+ ath5k_hw_reset_key(ah, i);
+
__set_bit(ATH_STAT_STARTED, sc->status);
/* Set ack to be sent at low bit-rates */
- ath5k_hw_set_ack_bitrate_high(sc->ah, false);
+ ath5k_hw_set_ack_bitrate_high(ah, false);
mod_timer(&sc->calib_tim, round_jiffies(jiffies +
msecs_to_jiffies(ath5k_calinterval * 1000)));
void *tmp;
int err;
u8 *end = (u8 *)eeprom + len;
- u16 synth;
+ u16 synth = 0;
DECLARE_MAC_BUF(mac);
wrap = (struct eeprom_pda_wrap *) eeprom;
entry = (void *)entry + (entry_len + 1)*2;
}
- if (!priv->iq_autocal || !priv->output_limit || !priv->curve_data) {
+ if (!synth || !priv->iq_autocal || !priv->output_limit ||
+ !priv->curve_data) {
printk(KERN_ERR "p54: not all required entries found in eeprom!\n");
err = -EINVAL;
goto err;
printk(KERN_INFO "%s: tx overflow.\n", wiphy_name(dev->wiphy));
}
-static int p54p_open(struct ieee80211_hw *dev)
-{
- struct p54p_priv *priv = dev->priv;
- int err;
-
- init_completion(&priv->boot_comp);
- err = request_irq(priv->pdev->irq, &p54p_interrupt,
- IRQF_SHARED, "p54pci", dev);
- if (err) {
- printk(KERN_ERR "%s: failed to register IRQ handler\n",
- wiphy_name(dev->wiphy));
- return err;
- }
-
- memset(priv->ring_control, 0, sizeof(*priv->ring_control));
- err = p54p_upload_firmware(dev);
- if (err) {
- free_irq(priv->pdev->irq, dev);
- return err;
- }
- priv->rx_idx_data = priv->tx_idx_data = 0;
- priv->rx_idx_mgmt = priv->tx_idx_mgmt = 0;
-
- p54p_refill_rx_ring(dev, 0, priv->ring_control->rx_data,
- ARRAY_SIZE(priv->ring_control->rx_data), priv->rx_buf_data);
-
- p54p_refill_rx_ring(dev, 2, priv->ring_control->rx_mgmt,
- ARRAY_SIZE(priv->ring_control->rx_mgmt), priv->rx_buf_mgmt);
-
- P54P_WRITE(ring_control_base, cpu_to_le32(priv->ring_control_dma));
- P54P_READ(ring_control_base);
- wmb();
- udelay(10);
-
- P54P_WRITE(int_enable, cpu_to_le32(ISL38XX_INT_IDENT_INIT));
- P54P_READ(int_enable);
- wmb();
- udelay(10);
-
- P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_RESET));
- P54P_READ(dev_int);
-
- if (!wait_for_completion_interruptible_timeout(&priv->boot_comp, HZ)) {
- printk(KERN_ERR "%s: Cannot boot firmware!\n",
- wiphy_name(dev->wiphy));
- free_irq(priv->pdev->irq, dev);
- return -ETIMEDOUT;
- }
-
- P54P_WRITE(int_enable, cpu_to_le32(ISL38XX_INT_IDENT_UPDATE));
- P54P_READ(int_enable);
- wmb();
- udelay(10);
-
- P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_UPDATE));
- P54P_READ(dev_int);
- wmb();
- udelay(10);
-
- return 0;
-}
-
static void p54p_stop(struct ieee80211_hw *dev)
{
struct p54p_priv *priv = dev->priv;
memset(ring_control, 0, sizeof(*ring_control));
}
+static int p54p_open(struct ieee80211_hw *dev)
+{
+ struct p54p_priv *priv = dev->priv;
+ int err;
+
+ init_completion(&priv->boot_comp);
+ err = request_irq(priv->pdev->irq, &p54p_interrupt,
+ IRQF_SHARED, "p54pci", dev);
+ if (err) {
+ printk(KERN_ERR "%s: failed to register IRQ handler\n",
+ wiphy_name(dev->wiphy));
+ return err;
+ }
+
+ memset(priv->ring_control, 0, sizeof(*priv->ring_control));
+ err = p54p_upload_firmware(dev);
+ if (err) {
+ free_irq(priv->pdev->irq, dev);
+ return err;
+ }
+ priv->rx_idx_data = priv->tx_idx_data = 0;
+ priv->rx_idx_mgmt = priv->tx_idx_mgmt = 0;
+
+ p54p_refill_rx_ring(dev, 0, priv->ring_control->rx_data,
+ ARRAY_SIZE(priv->ring_control->rx_data), priv->rx_buf_data);
+
+ p54p_refill_rx_ring(dev, 2, priv->ring_control->rx_mgmt,
+ ARRAY_SIZE(priv->ring_control->rx_mgmt), priv->rx_buf_mgmt);
+
+ P54P_WRITE(ring_control_base, cpu_to_le32(priv->ring_control_dma));
+ P54P_READ(ring_control_base);
+ wmb();
+ udelay(10);
+
+ P54P_WRITE(int_enable, cpu_to_le32(ISL38XX_INT_IDENT_INIT));
+ P54P_READ(int_enable);
+ wmb();
+ udelay(10);
+
+ P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_RESET));
+ P54P_READ(dev_int);
+
+ if (!wait_for_completion_interruptible_timeout(&priv->boot_comp, HZ)) {
+ printk(KERN_ERR "%s: Cannot boot firmware!\n",
+ wiphy_name(dev->wiphy));
+ p54p_stop(dev);
+ return -ETIMEDOUT;
+ }
+
+ P54P_WRITE(int_enable, cpu_to_le32(ISL38XX_INT_IDENT_UPDATE));
+ P54P_READ(int_enable);
+ wmb();
+ udelay(10);
+
+ P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_UPDATE));
+ P54P_READ(dev_int);
+ wmb();
+ udelay(10);
+
+ return 0;
+}
+
static int __devinit p54p_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
spin_lock_init(&priv->lock);
tasklet_init(&priv->rx_tasklet, p54p_rx_tasklet, (unsigned long)dev);
- p54p_open(dev);
+ err = p54p_open(dev);
+ if (err)
+ goto err_free_common;
err = p54_read_eeprom(dev);
p54p_stop(dev);
if (err)
- goto err_free_desc;
+ goto err_free_common;
err = ieee80211_register_hw(dev);
if (err) {
err_free_common:
p54_free_common(dev);
-
- err_free_desc:
pci_free_consistent(pdev, sizeof(*priv->ring_control),
priv->ring_control, priv->ring_control_dma);
link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
+ link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
link->irq.IRQInfo1 = IRQ_LEVEL_ID;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor);
-/* Many VIA bridges seem to corrupt data for DAC. Disable it here */
-int forbid_dac __read_mostly;
-EXPORT_SYMBOL(forbid_dac);
-
-static __devinit void via_no_dac(struct pci_dev *dev)
-{
- if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && forbid_dac == 0) {
- dev_info(&dev->dev,
- "VIA PCI bridge detected. Disabling DAC.\n");
- forbid_dac = 1;
- }
-}
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_ANY_ID, via_no_dac);
-
/* Deal with broken BIOS'es that neglect to enable passive release,
which can cause problems in combination with the 82441FX/PPro MTRRs */
static void quirk_passive_release(struct pci_dev *dev)
type = 0;
if (s->functions > 1) /* All of this ought to be handled higher up */
type = IRQF_SHARED;
- if (req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)
+ else if (req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)
type = IRQF_SHARED;
+ else printk(KERN_WARNING "pcmcia: Driver needs updating to support IRQ sharing.\n");
#ifdef CONFIG_PCMCIA_PROBE
int enable_bit;
};
+static inline struct device *to_da903x_dev(struct regulator_dev *rdev)
+{
+ return rdev_get_dev(rdev)->parent->parent;
+}
+
static inline int check_range(struct da903x_regulator_info *info,
int min_uV, int max_uV)
{
int min_uV, int max_uV)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
- struct device *da9034_dev = rdev_get_dev(rdev)->parent;
+ struct device *da9034_dev = to_da903x_dev(rdev);
uint8_t val, mask;
if (check_range(info, min_uV, max_uV)) {
static int da903x_get_voltage(struct regulator_dev *rdev)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
- struct device *da9034_dev = rdev_get_dev(rdev)->parent;
+ struct device *da9034_dev = to_da903x_dev(rdev);
uint8_t val, mask;
int ret;
static int da903x_enable(struct regulator_dev *rdev)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
- struct device *da9034_dev = rdev_get_dev(rdev)->parent;
+ struct device *da9034_dev = to_da903x_dev(rdev);
return da903x_set_bits(da9034_dev, info->enable_reg,
1 << info->enable_bit);
static int da903x_disable(struct regulator_dev *rdev)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
- struct device *da9034_dev = rdev_get_dev(rdev)->parent;
+ struct device *da9034_dev = to_da903x_dev(rdev);
return da903x_clr_bits(da9034_dev, info->enable_reg,
1 << info->enable_bit);
static int da903x_is_enabled(struct regulator_dev *rdev)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
- struct device *da9034_dev = rdev_get_dev(rdev)->parent;
+ struct device *da9034_dev = to_da903x_dev(rdev);
uint8_t reg_val;
int ret;
int min_uV, int max_uV)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
- struct device *da903x_dev = rdev_get_dev(rdev)->parent;
+ struct device *da903x_dev = to_da903x_dev(rdev);
uint8_t val, mask;
int ret;
int min_uV, int max_uV)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
- struct device *da903x_dev = rdev_get_dev(rdev)->parent;
+ struct device *da903x_dev = to_da903x_dev(rdev);
uint8_t val, mask;
int thresh;
static int da9030_get_ldo14_voltage(struct regulator_dev *rdev)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
- struct device *da903x_dev = rdev_get_dev(rdev)->parent;
+ struct device *da903x_dev = to_da903x_dev(rdev);
uint8_t val, mask;
int ret;
int min_uV, int max_uV)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
- struct device *da9034_dev = rdev_get_dev(rdev)->parent;
+ struct device *da9034_dev = to_da903x_dev(rdev);
uint8_t val, mask;
int ret;
int min_uV, int max_uV)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
- struct device *da9034_dev = rdev_get_dev(rdev)->parent;
+ struct device *da9034_dev = to_da903x_dev(rdev);
uint8_t val, mask;
if (check_range(info, min_uV, max_uV)) {
static int da9034_get_ldo12_voltage(struct regulator_dev *rdev)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
- struct device *da9034_dev = rdev_get_dev(rdev)->parent;
+ struct device *da9034_dev = to_da903x_dev(rdev);
uint8_t val, mask;
int ret;
if (ri->desc.id == DA9030_ID_LDO1 || ri->desc.id == DA9030_ID_LDO15)
ri->desc.ops = &da9030_regulator_ldo1_15_ops;
- rdev = regulator_register(&ri->desc, pdev->dev.parent, ri);
+ rdev = regulator_register(&ri->desc, &pdev->dev, ri);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register regulator %s\n",
ri->desc.name);
.set_time = ds3234_set_time,
};
-static int ds3234_probe(struct spi_device *spi)
+static int __devinit ds3234_probe(struct spi_device *spi)
{
struct rtc_device *rtc;
unsigned char tmp;
return 0;
}
-static int __exit ds3234_remove(struct spi_device *spi)
+static int __devexit ds3234_remove(struct spi_device *spi)
{
struct ds3234 *chip = platform_get_drvdata(spi);
struct rtc_device *rtc = chip->rtc;
s3c_rtc_setfreq(&pdev->dev, 1);
+ device_init_wakeup(&pdev->dev, 1);
+
/* register RTC and exit */
rtc = rtc_device_register("s3c", &pdev->dev, &s3c_rtcops,
#define s3c_rtc_resume NULL
#endif
-static struct platform_driver s3c2410_rtcdrv = {
+static struct platform_driver s3c2410_rtc_driver = {
.probe = s3c_rtc_probe,
.remove = __devexit_p(s3c_rtc_remove),
.suspend = s3c_rtc_suspend,
static int __init s3c_rtc_init(void)
{
printk(banner);
- return platform_driver_register(&s3c2410_rtcdrv);
+ return platform_driver_register(&s3c2410_rtc_driver);
}
static void __exit s3c_rtc_exit(void)
{
- platform_driver_unregister(&s3c2410_rtcdrv);
+ platform_driver_unregister(&s3c2410_rtc_driver);
}
module_init(s3c_rtc_init);
static void
tapeblock_end_request(struct request *req, int error)
{
- if (__blk_end_request(req, error, blk_rq_bytes(req)))
+ if (blk_end_request(req, error, blk_rq_bytes(req)))
BUG();
}
nr_queued++;
spin_unlock(get_ccwdev_lock(device->cdev));
- spin_lock(&device->blk_data.request_queue_lock);
+ spin_lock_irq(&device->blk_data.request_queue_lock);
while (
!blk_queue_plugged(queue) &&
elv_next_request(queue) &&
if (rq_data_dir(req) == WRITE) {
DBF_EVENT(1, "TBLOCK: Rejecting write request\n");
blkdev_dequeue_request(req);
+ spin_unlock_irq(&device->blk_data.request_queue_lock);
tapeblock_end_request(req, -EIO);
+ spin_lock_irq(&device->blk_data.request_queue_lock);
continue;
}
blkdev_dequeue_request(req);
{
int rc;
- spin_lock(get_ccwdev_lock(device->cdev));
+ spin_lock_irq(get_ccwdev_lock(device->cdev));
if (device->tape_state == TS_NOT_OPER) {
DBF_EVENT(6, "TAPE:nodev\n");
rc = -ENODEV;
tape_state_set(device, TS_IN_USE);
rc = 0;
}
- spin_unlock(get_ccwdev_lock(device->cdev));
+ spin_unlock_irq(get_ccwdev_lock(device->cdev));
return rc;
}
int
tape_release(struct tape_device *device)
{
- spin_lock(get_ccwdev_lock(device->cdev));
+ spin_lock_irq(get_ccwdev_lock(device->cdev));
if (device->tape_state == TS_IN_USE)
tape_state_set(device, TS_UNUSED);
module_put(device->discipline->owner);
- spin_unlock(get_ccwdev_lock(device->cdev));
+ spin_unlock_irq(get_ccwdev_lock(device->cdev));
return 0;
}
#define MAX_DEBUGFS_QUEUES 32
static struct dentry *debugfs_queues[MAX_DEBUGFS_QUEUES] = { NULL };
static DEFINE_MUTEX(debugfs_mutex);
+#define QDIO_DEBUGFS_NAME_LEN 40
void qdio_allocate_do_dbf(struct qdio_initialize *init_data)
{
filp->f_path.dentry->d_inode->i_private);
}
-static void get_queue_name(struct qdio_q *q, struct ccw_device *cdev, char *name)
-{
- memset(name, 0, sizeof(name));
- sprintf(name, "%s", dev_name(&cdev->dev));
- if (q->is_input_q)
- sprintf(name + strlen(name), "_input");
- else
- sprintf(name + strlen(name), "_output");
- sprintf(name + strlen(name), "_%d", q->nr);
-}
-
static void remove_debugfs_entry(struct qdio_q *q)
{
int i;
static void setup_debugfs_entry(struct qdio_q *q, struct ccw_device *cdev)
{
int i = 0;
- char name[40];
+ char name[QDIO_DEBUGFS_NAME_LEN];
while (debugfs_queues[i] != NULL) {
i++;
if (i >= MAX_DEBUGFS_QUEUES)
return;
}
- get_queue_name(q, cdev, name);
+ snprintf(name, QDIO_DEBUGFS_NAME_LEN, "%s_%s_%d",
+ dev_name(&cdev->dev),
+ q->is_input_q ? "input" : "output",
+ q->nr);
debugfs_queues[i] = debugfs_create_file(name, S_IFREG | S_IRUGO | S_IWUSR,
debugfs_root, q, &debugfs_fops);
}
case -EIO:
sprintf(dbf_text, "ierr%4x", irq_ptr->schid.sch_no);
QDIO_DBF_TEXT2(1, setup, dbf_text);
- qdio_int_error(cdev);
return;
case -ETIMEDOUT:
sprintf(dbf_text, "qtoh%4x", irq_ptr->schid.sch_no);
struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill,
int offset)
{
- int length = skb->len - offset;
+ int length = skb->len;
int length_here;
int element;
char *data;
if (offset >= 0) {
data = skb->data + offset;
+ length -= offset;
first_lap = 0;
}
QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
qeth_set_allowed_threads(card, 0, 1);
- if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
- return -ERESTARTSYS;
if (card->read.state == CH_STATE_UP &&
card->write.state == CH_STATE_UP &&
(card->state == CARD_STATE_UP)) {
netif_rx(skb);
break;
case QETH_HEADER_TYPE_OSN:
- skb_push(skb, sizeof(struct qeth_hdr));
- skb_copy_to_linear_data(skb, hdr,
+ if (card->info.type == QETH_CARD_TYPE_OSN) {
+ skb_push(skb, sizeof(struct qeth_hdr));
+ skb_copy_to_linear_data(skb, hdr,
sizeof(struct qeth_hdr));
- len = skb->len;
- card->osn_info.data_cb(skb);
- break;
+ len = skb->len;
+ card->osn_info.data_cb(skb);
+ break;
+ }
+ /* else unknown */
default:
dev_kfree_skb_any(skb);
QETH_DBF_TEXT(TRACE, 3, "inbunkno");
QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
- if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)) {
- PRINT_WARN("set_online of card %s interrupted by user!\n",
- CARD_BUS_ID(card));
- return -ERESTARTSYS;
- }
-
recover_flag = card->state;
rc = ccw_device_set_online(CARD_RDEV(card));
if (rc) {
if (card->dev && netif_carrier_ok(card->dev))
netif_carrier_off(card->dev);
recover_flag = card->state;
- if (qeth_l2_stop_card(card, recovery_mode) == -ERESTARTSYS) {
- PRINT_WARN("Stopping card %s interrupted by user!\n",
- CARD_BUS_ID(card));
- return -ERESTARTSYS;
- }
+ qeth_l2_stop_card(card, recovery_mode);
rc = ccw_device_set_offline(CARD_DDEV(card));
rc2 = ccw_device_set_offline(CARD_WDEV(card));
rc3 = ccw_device_set_offline(CARD_RDEV(card));
QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
qeth_set_allowed_threads(card, 0, 1);
- if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
- return -ERESTARTSYS;
if (card->read.state == CH_STATE_UP &&
card->write.state == CH_STATE_UP &&
(card->state == CARD_STATE_UP)) {
QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
- if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)) {
- PRINT_WARN("set_online of card %s interrupted by user!\n",
- CARD_BUS_ID(card));
- return -ERESTARTSYS;
- }
recover_flag = card->state;
rc = ccw_device_set_online(CARD_RDEV(card));
if (card->dev && netif_carrier_ok(card->dev))
netif_carrier_off(card->dev);
recover_flag = card->state;
- if (qeth_l3_stop_card(card, recovery_mode) == -ERESTARTSYS) {
- PRINT_WARN("Stopping card %s interrupted by user!\n",
- CARD_BUS_ID(card));
- return -ERESTARTSYS;
- }
+ qeth_l3_stop_card(card, recovery_mode);
rc = ccw_device_set_offline(CARD_DDEV(card));
rc2 = ccw_device_set_offline(CARD_WDEV(card));
rc3 = ccw_device_set_offline(CARD_RDEV(card));
if (!card)
return -EINVAL;
- if (!qeth_is_supported(card, IPA_IPV6))
- return sprintf(buf, "%s\n", "n/a");
-
return qeth_l3_dev_route_show(card, &card->options.route6, buf);
}
if (!card)
return -EINVAL;
- if (!qeth_is_supported(card, IPA_IPV6)) {
- return -EOPNOTSUPP;
- }
-
return qeth_l3_dev_route_store(card, &card->options.route6,
QETH_PROT_IPV6, buf, count);
}
#include <scsi/scsi_ioctl.h>
#include "fdomain.h"
+#ifndef PCMCIA
MODULE_AUTHOR("Rickard E. Faith");
MODULE_DESCRIPTION("Future domain SCSI driver");
MODULE_LICENSE("GPL");
+#endif
#define VERSION "$Revision: 5.51 $"
say Y or M. Otherwise, say N.
config SERIAL_NETX
- bool "NetX serial port support"
+ tristate "NetX serial port support"
depends on ARM && ARCH_NETX
select SERIAL_CORE
help
config SERIAL_NETX_CONSOLE
bool "Console on NetX serial port"
- depends on SERIAL_NETX
+ depends on SERIAL_NETX=y
select SERIAL_CORE_CONSOLE
help
If you have enabled the serial port on the Hilscher NetX SoC
#define SERIAL_NX_MAJOR 204
#define MINOR_START 170
-#ifdef CONFIG_SERIAL_NETX_CONSOLE
-
enum uart_regs {
UART_DR = 0x00,
UART_SR = 0x04,
}
};
+#ifdef CONFIG_SERIAL_NETX_CONSOLE
+
static void netx_console_putchar(struct uart_port *port, int ch)
{
while (readl(port->membase + UART_FR) & FR_BUSY);
static int usbtmc_ioctl_abort_bulk_in(struct usbtmc_device_data *data)
{
- char *buffer;
+ u8 *buffer;
struct device *dev;
int rv;
int n;
/* used when updating an endpoint's URB list */
static DEFINE_SPINLOCK(hcd_urb_list_lock);
+/* used to protect against unlinking URBs after the device is gone */
+static DEFINE_SPINLOCK(hcd_urb_unlink_lock);
+
/* wait queue for synchronous unlinks */
DECLARE_WAIT_QUEUE_HEAD(usb_kill_urb_queue);
int usb_hcd_unlink_urb (struct urb *urb, int status)
{
struct usb_hcd *hcd;
- int retval;
+ int retval = -EIDRM;
+ unsigned long flags;
- hcd = bus_to_hcd(urb->dev->bus);
- retval = unlink1(hcd, urb, status);
+ /* Prevent the device and bus from going away while
+ * the unlink is carried out. If they are already gone
+ * then urb->use_count must be 0, since disconnected
+ * devices can't have any active URBs.
+ */
+ spin_lock_irqsave(&hcd_urb_unlink_lock, flags);
+ if (atomic_read(&urb->use_count) > 0) {
+ retval = 0;
+ usb_get_dev(urb->dev);
+ }
+ spin_unlock_irqrestore(&hcd_urb_unlink_lock, flags);
+ if (retval == 0) {
+ hcd = bus_to_hcd(urb->dev->bus);
+ retval = unlink1(hcd, urb, status);
+ usb_put_dev(urb->dev);
+ }
if (retval == 0)
retval = -EINPROGRESS;
hcd->driver->endpoint_disable(hcd, ep);
}
+/* Protect against drivers that try to unlink URBs after the device
+ * is gone, by waiting until all unlinks for @udev are finished.
+ * Since we don't currently track URBs by device, simply wait until
+ * nothing is running in the locked region of usb_hcd_unlink_urb().
+ */
+void usb_hcd_synchronize_unlinks(struct usb_device *udev)
+{
+ spin_lock_irq(&hcd_urb_unlink_lock);
+ spin_unlock_irq(&hcd_urb_unlink_lock);
+}
+
/*-------------------------------------------------------------------------*/
/* called in any context */
struct usb_host_endpoint *ep);
extern void usb_hcd_disable_endpoint(struct usb_device *udev,
struct usb_host_endpoint *ep);
+extern void usb_hcd_synchronize_unlinks(struct usb_device *udev);
extern int usb_hcd_get_frame_number(struct usb_device *udev);
extern struct usb_hcd *usb_create_hcd(const struct hc_driver *driver,
PREPARE_DELAYED_WORK(&hub->init_work, hub_init_func2);
schedule_delayed_work(&hub->init_work,
msecs_to_jiffies(delay));
+
+ /* Suppress autosuspend until init is done */
+ to_usb_interface(hub->intfdev)->pm_usage_cnt = 1;
return; /* Continues at init2: below */
} else {
hub_power_on(hub, true);
*/
dev_dbg (&udev->dev, "unregistering device\n");
usb_disable_device(udev, 0);
+ usb_hcd_synchronize_unlinks(udev);
usb_unlock_device(udev);
* indicating that the request has been canceled (rather than any other
* code).
*
+ * Drivers should not call this routine or related routines, such as
+ * usb_kill_urb() or usb_unlink_anchored_urbs(), after their disconnect
+ * method has returned. The disconnect function should synchronize with
+ * a driver's I/O routines to insure that all URB-related activity has
+ * completed before it returns.
+ *
* This request is always asynchronous. Success is indicated by
* returning -EINPROGRESS, at which time the URB will probably not yet
* have been given back to the device driver. When it is eventually
* This routine may not be used in an interrupt context (such as a bottom
* half or a completion handler), or when holding a spinlock, or in other
* situations where the caller can't schedule().
+ *
+ * This routine should not be called by a driver after its disconnect
+ * method has returned.
*/
void usb_kill_urb(struct urb *urb)
{
* This routine may not be used in an interrupt context (such as a bottom
* half or a completion handler), or when holding a spinlock, or in other
* situations where the caller can't schedule().
+ *
+ * This routine should not be called by a driver after its disconnect
+ * method has returned.
*/
void usb_poison_urb(struct urb *urb)
{
*
* this allows all outstanding URBs to be killed starting
* from the back of the queue
+ *
+ * This routine should not be called by a driver after its disconnect
+ * method has returned.
*/
void usb_kill_anchored_urbs(struct usb_anchor *anchor)
{
* this allows all outstanding URBs to be poisoned starting
* from the back of the queue. Newly added URBs will also be
* poisoned
+ *
+ * This routine should not be called by a driver after its disconnect
+ * method has returned.
*/
void usb_poison_anchored_urbs(struct usb_anchor *anchor)
{
spin_unlock_irq(&anchor->lock);
}
EXPORT_SYMBOL_GPL(usb_poison_anchored_urbs);
+
/**
* usb_unlink_anchored_urbs - asynchronously cancel transfer requests en masse
* @anchor: anchor the requests are bound to
* from the back of the queue. This function is asynchronous.
* The unlinking is just tiggered. It may happen after this
* function has returned.
+ *
+ * This routine should not be called by a driver after its disconnect
+ * method has returned.
*/
void usb_unlink_anchored_urbs(struct usb_anchor *anchor)
{
if (tty->driver_data)
tty->driver_data = NULL;
tty_port_tty_set(&port->port, NULL);
+ tty_kref_put(tty);
}
}
"Finecam S5",
US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_FIX_INQUIRY),
+/* Patch submitted by Jens Taprogge <jens.taprogge@taprogge.org> */
+UNUSUAL_DEV( 0x0482, 0x0107, 0x0100, 0x0100,
+ "Kyocera",
+ "CONTAX SL300R T*",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ US_FL_FIX_CAPACITY | US_FL_NOT_LOCKABLE),
+
/* Reported by Paul Stewart <stewart@wetlogic.net>
* This entry is needed because the device reports Sub=ff */
UNUSUAL_DEV( 0x04a4, 0x0004, 0x0001, 0x0001,
return corgi_bl_set_intensity(lcd, intensity);
}
-void corgibl_limit_intensity(int limit)
+void corgi_lcd_limit_intensity(int limit)
{
if (limit)
corgibl_flags |= CORGIBL_BATTLOW;
backlight_update_status(the_corgi_lcd->bl_dev);
}
-EXPORT_SYMBOL(corgibl_limit_intensity);
+EXPORT_SYMBOL(corgi_lcd_limit_intensity);
static struct backlight_ops corgi_bl_ops = {
.get_brightness = corgi_bl_get_intensity,
height, width);
}
-static __inline__ void updatescrollmode(struct display *p,
+static void updatescrollmode(struct display *p,
struct fb_info *info,
struct vc_data *vc)
{
case FBIOPUT_CON2FBMAP:
arg = (unsigned long) compat_ptr(arg);
case FBIOBLANK:
- ret = fb_ioctl(file, cmd, arg);
- break;
+ mutex_unlock(&info->lock);
+ return fb_ioctl(file, cmd, arg);
case FBIOGET_FSCREENINFO:
ret = fb_get_fscreeninfo(inode, file, cmd, arg);
#include "iface.h"
#include "viafbdev.h"
#include "chip.h"
-#include "debug.h"
#include "accel.h"
#include "share.h"
#include "dvi.h"
#include "lcd.h"
#include "ioctl.h"
-#include "viamode.h"
#include "via_utility.h"
#include "vt1636.h"
#include "tblDPASetting.h"
#include "tbl1636.h"
-#include "viafbdev.h"
/* External struct*/
*
* Based on wdt.c. Original copyright messages:
*
- * (c) Copyright 1996 Alan Cox <alan@redhat.com>, All Rights Reserved.
- * http://www.redhat.com
+ * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ * All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* warranty for any of this software. This material is provided
* "AS-IS" and at no charge.
*
- * (c) Copyright 1995 Alan Cox <alan@redhat.com>
+ * (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk>
*
* 14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com>
* Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
* Based on acquirewdt.c which is based on wdt.c.
* Original copyright messages:
*
- * (c) Copyright 1996 Alan Cox <alan@redhat.com>, All Rights Reserved.
- * http://www.redhat.com
+ * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ * All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* warranty for any of this software. This material is provided
* "AS-IS" and at no charge.
*
- * (c) Copyright 1995 Alan Cox <alan@redhat.com>
+ * (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk>
*
* 14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com>
* Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
* Originally based on softdog.c
* Copyright 2006-2007 Analog Devices Inc.
* Copyright 2006-2007 Michele d'Amico
- * Copyright 1996 Alan Cox <alan@redhat.com>
+ * Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>
*
* Enter bugs at http://blackfin.uclinux.org/
*
* Based on wdt.c.
* Original copyright messages:
*
- * (c) Copyright 1996-1997 Alan Cox <alan@redhat.com>, All Rights Reserved.
- * http://www.redhat.com
+ * (c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ * All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
goto err_disable;
}
- BASEADDR = ioremap(pci_resource_start(esb_pci, 0),
- pci_resource_len(esb_pci, 0));
+ BASEADDR = pci_ioremap_bar(esb_pci, 0);
if (BASEADDR == NULL) {
/* Something's wrong here, BASEADDR has to be set */
printk(KERN_ERR PFX "failed to get BASEADDR\n");
* Based on acquirewdt.c which is based on wdt.c.
* Original copyright messages:
*
- * (c) Copyright 1996 Alan Cox <alan@redhat.com>, All Rights Reserved.
- * http://www.redhat.com
+ * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ * All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* warranty for any of this software. This material is provided
* "AS-IS" and at no charge.
*
- * (c) Copyright 1995 Alan Cox <alan@redhat.com>
+ * (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk>
*
* 14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com>
* Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
- * based on softdog.c by Alan Cox <alan@redhat.com>
+ * based on softdog.c by Alan Cox <alan@lxorguk.ukuu.org.uk>
*/
#include <linux/module.h>
* (c) Copyright 2004 ARM Limited
*
* Based on the SoftDog driver:
- * (c) Copyright 1996 Alan Cox <alan@redhat.com>, All Rights Reserved.
- * http://www.redhat.com
+ * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ * All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* 20030527: George G. Davis <gdavis@mvista.com>
* Initially based on linux-2.4.19-rmk7-pxa1/drivers/char/sa1100_wdt.c
* (c) Copyright 2000 Oleg Drokin <green@crimea.edu>
- * Based on SoftDog driver by Alan Cox <alan@redhat.com>
+ * Based on SoftDog driver by Alan Cox <alan@lxorguk.ukuu.org.uk>
*
* Copyright (c) 2004 Texas Instruments.
* 1. Modified to support OMAP1610 32-KHz watchdog timer
* Based on source code of the following authors:
* Ken Hollis <kenji@bitgate.com>,
* Lindsay Harris <lindsay@bluegum.com>,
- * Alan Cox <alan@redhat.com>,
+ * Alan Cox <alan@lxorguk.ukuu.org.uk>,
* Matt Domsch <Matt_Domsch@dell.com>,
* Rob Radez <rob@osinvestor.com>
*
*
* Based on source code of the following authors:
* Ken Hollis <kenji@bitgate.com>,
- * Alan Cox <alan@redhat.com>,
+ * Alan Cox <alan@lxorguk.ukuu.org.uk>,
* Matt Domsch <Matt_Domsch@dell.com>,
* Rob Radez <rob@osinvestor.com>,
* Greg Kroah-Hartman <greg@kroah.com>
* based on
* SoftDog 0.05: A Software Watchdog Device
*
- * (c) Copyright 1996 Alan Cox <alan@redhat.com>, All Rights Reserved.
+ * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ * All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* S3C2410 Watchdog Timer Support
*
* Based on, softdog.c by Alan Cox,
- * (c) Copyright 1996 Alan Cox <alan@redhat.com>
+ * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>
*
* 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
* Watchdog driver for the SA11x0/PXA2xx
*
* (c) Copyright 2000 Oleg Drokin <green@crimea.edu>
- * Based on SoftDog driver by Alan Cox <alan@redhat.com>
+ * Based on SoftDog driver by Alan Cox <alan@lxorguk.ukuu.org.uk>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* Based on various other watchdog drivers, which are probably all
* loosely based on something Alan Cox wrote years ago.
*
- * (c) Copyright 1996 Alan Cox <alan@redhat.com>, All Rights Reserved.
- * http://www.redhat.com
+ * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ * All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* Based on acquirewdt.c which is based on wdt.c.
* Original copyright messages:
*
- * (c) Copyright 1996 Alan Cox <alan@redhat.com>, All Rights Reserved.
- * http://www.redhat.com
+ * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ * All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* warranty for any of this software. This material is provided
* "AS-IS" and at no charge.
*
- * (c) Copyright 1995 Alan Cox <alan@redhat.com>
+ * (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk>
*
* 14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com>
* Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
- * based on softdog.c by Alan Cox <alan@redhat.com>
+ * based on softdog.c by Alan Cox <alan@lxorguk.ukuu.org.uk>
*/
#include <linux/module.h>
/*
* SMsC 37B787 Watchdog Timer driver for Linux 2.6.x.x
*
- * Based on acquirewdt.c by Alan Cox <alan@redhat.com>
+ * Based on acquirewdt.c by Alan Cox <alan@lxorguk.ukuu.org.uk>
* and some other existing drivers
*
* This program is free software; you can redistribute it and/or
/*
* SoftDog 0.07: A Software Watchdog Device
*
- * (c) Copyright 1996 Alan Cox <alan@redhat.com>, All Rights Reserved.
- * http://www.redhat.com
+ * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
*
* (c) Copyright 2000-2001 Marek Michalkiewicz <marekm@linux.org.pl>
*
- * (c) Copyright 1996 Alan Cox <alan@redhat.com>, All Rights Reserved.
- * http://www.redhat.com
+ * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ * All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* warranty for any of this software. This material is provided
* "AS-IS" and at no charge.
*
- * (c) Copyright 1995 Alan Cox <alan@redhat.com>
+ * (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk>
*/
#include <linux/module.h>
*
* (c) Copyright 2000-2001 Marek Michalkiewicz <marekm@linux.org.pl>
*
- * (c) Copyright 1996 Alan Cox <alan@redhat.com>, All Rights Reserved.
- * http://www.redhat.com
+ * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ * All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* Based on advantechwdt.c which is based on wdt.c.
* Original copyright messages:
*
- * (c) Copyright 1996-1997 Alan Cox <alan@redhat.com>, All Rights Reserved.
- * http://www.redhat.com
+ * (c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ * All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
/*
* Industrial Computer Source WDT500/501 driver
*
- * (c) Copyright 1996-1997 Alan Cox <alan@redhat.com>, All Rights Reserved.
- * http://www.redhat.com
+ * (c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ * All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
*
* SoftDog 0.05: A Software Watchdog Device
*
- * (c) Copyright 1996 Alan Cox <alan@redhat.com>, All Rights Reserved.
+ * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ * All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
/*
* Industrial Computer Source PCI-WDT500/501 driver
*
- * (c) Copyright 1996-1997 Alan Cox <alan@redhat.com>, All Rights Reserved.
- * http://www.redhat.com
+ * (c) Copyright 1996-1997 Alan Cox <alan@lxorguk.ukuu.org.uk>,
+ * All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
poll.nr_ports = 1;
poll.timeout = 0;
- poll.ports = &evtchn;
+ set_xen_guest_handle(poll.ports, &evtchn);
if (HYPERVISOR_sched_op(SCHEDOP_poll, &poll) != 0)
BUG();
BUG_ON(!irqs_disabled());
- load_cr3(swapper_pg_dir);
-
err = device_power_down(PMSG_SUSPEND);
if (err) {
printk(KERN_ERR "xen_suspend: device_power_down failed: %d\n",
#include <asm/page.h>
#include <xen/xencomm.h>
#include <xen/interface/xen.h>
-#ifdef __ia64__
-#include <asm/xen/xencomm.h> /* for is_kern_addr() */
-#endif
-
-#ifdef HAVE_XEN_PLATFORM_COMPAT_H
-#include <xen/platform-compat.h>
-#endif
+#include <asm/xen/xencomm.h> /* for xencomm_is_phys_contiguous() */
static int xencomm_init(struct xencomm_desc *desc,
void *buffer, unsigned long bytes)
return 0;
}
-/* check if memory address is within VMALLOC region */
-static int is_phys_contiguous(unsigned long addr)
-{
- if (!is_kernel_addr(addr))
- return 0;
-
- return (addr < VMALLOC_START) || (addr >= VMALLOC_END);
-}
-
static struct xencomm_handle *xencomm_create_inline(void *ptr)
{
unsigned long paddr;
- BUG_ON(!is_phys_contiguous((unsigned long)ptr));
+ BUG_ON(!xencomm_is_phys_contiguous((unsigned long)ptr));
paddr = (unsigned long)xencomm_pa(ptr);
BUG_ON(paddr & XENCOMM_INLINE_FLAG);
int rc;
struct xencomm_desc *desc;
- if (is_phys_contiguous((unsigned long)ptr))
+ if (xencomm_is_phys_contiguous((unsigned long)ptr))
return xencomm_create_inline(ptr);
rc = xencomm_create(ptr, bytes, &desc, GFP_KERNEL);
int rc;
struct xencomm_desc *desc = NULL;
- if (is_phys_contiguous((unsigned long)ptr))
+ if (xencomm_is_phys_contiguous((unsigned long)ptr))
return xencomm_create_inline(ptr);
rc = xencomm_create_mini(ptr, bytes, xc_desc,
/**
* ecryptfs_write_headers_virt
* @page_virt: The virtual address to write the headers to
+ * @max: The size of memory allocated at page_virt
* @size: Set to the number of bytes written by this function
* @crypt_stat: The cryptographic context
* @ecryptfs_dentry: The eCryptfs dentry
*
* Returns zero on success
*/
-static int ecryptfs_write_headers_virt(char *page_virt, size_t *size,
+static int ecryptfs_write_headers_virt(char *page_virt, size_t max,
+ size_t *size,
struct ecryptfs_crypt_stat *crypt_stat,
struct dentry *ecryptfs_dentry)
{
offset += written;
rc = ecryptfs_generate_key_packet_set((page_virt + offset), crypt_stat,
ecryptfs_dentry, &written,
- PAGE_CACHE_SIZE - offset);
+ max - offset);
if (rc)
ecryptfs_printk(KERN_WARNING, "Error generating key packet "
"set; rc = [%d]\n", rc);
goto out;
}
/* Released in this function */
- virt = kzalloc(crypt_stat->num_header_bytes_at_front, GFP_KERNEL);
+ virt = (char *)get_zeroed_page(GFP_KERNEL);
if (!virt) {
printk(KERN_ERR "%s: Out of memory\n", __func__);
rc = -ENOMEM;
goto out;
}
- rc = ecryptfs_write_headers_virt(virt, &size, crypt_stat,
- ecryptfs_dentry);
+ rc = ecryptfs_write_headers_virt(virt, PAGE_CACHE_SIZE, &size,
+ crypt_stat, ecryptfs_dentry);
if (unlikely(rc)) {
printk(KERN_ERR "%s: Error whilst writing headers; rc = [%d]\n",
__func__, rc);
goto out_free;
}
out_free:
- memset(virt, 0, crypt_stat->num_header_bytes_at_front);
- kfree(virt);
+ free_page((unsigned long)virt);
out:
return rc;
}
if (rw == WRITE) {
/*
- * FIXME: blockdev_direct_IO() doesn't use ->prepare_write(),
+ * FIXME: blockdev_direct_IO() doesn't use ->write_begin(),
* so we need to update the ->mmu_private to block boundary.
*
* But we must fill the remaining area or hole by nul for
* int journal_get_undo_access() - Notify intent to modify metadata with non-rewindable consequences
* @handle: transaction
* @bh: buffer to undo
- * @credits: store the number of taken credits here (if not NULL)
*
* Sometimes there is a need to distinguish between metadata which has
* been committed to disk and that which has not. The ext3fs code uses
EXPORT_SYMBOL(simple_link);
EXPORT_SYMBOL(simple_lookup);
EXPORT_SYMBOL(simple_pin_fs);
-EXPORT_SYMBOL(simple_prepare_write);
+EXPORT_UNUSED_SYMBOL(simple_prepare_write);
EXPORT_SYMBOL(simple_readpage);
EXPORT_SYMBOL(simple_release_fs);
EXPORT_SYMBOL(simple_rename);
return nfs_size_to_loff_t(fattr->size) > i_size_read(inode);
}
-static unsigned long nfs_attr_generation_counter;
+static atomic_long_t nfs_attr_generation_counter;
static unsigned long nfs_read_attr_generation_counter(void)
{
- smp_rmb();
- return nfs_attr_generation_counter;
+ return atomic_long_read(&nfs_attr_generation_counter);
}
unsigned long nfs_inc_attr_generation_counter(void)
{
- unsigned long ret;
- smp_rmb();
- ret = ++nfs_attr_generation_counter;
- smp_wmb();
- return ret;
+ return atomic_long_inc_return(&nfs_attr_generation_counter);
}
void nfs_fattr_init(struct nfs_fattr *fattr)
/* Some parts of this taken from generic_cont_expand, which turned out
* to be too fragile to do exactly what we need without us having to
- * worry about recursive locking in ->prepare_write() and
- * ->commit_write(). */
+ * worry about recursive locking in ->write_begin() and ->write_end(). */
static int ocfs2_write_zero_page(struct inode *inode,
u64 size)
{
};
/*
- * The actor worker might be calling ->prepare_write and
- * ->commit_write. Most of the time, these expect i_mutex to
+ * The actor worker might be calling ->write_begin and
+ * ->write_end. Most of the time, these expect i_mutex to
* be held. Since this may result in an ABBA deadlock with
* pipe->inode, we have to order lock acquiry here.
*/
enum die_val {
DIE_UNUSED,
+ DIE_OOPS=1
};
#endif /* _ASM_GENERIC_KDEBUG_H */
extern int cgroup_init_early(void);
extern int cgroup_init(void);
-extern void cgroup_init_smp(void);
extern void cgroup_lock(void);
extern bool cgroup_lock_live_group(struct cgroup *cgrp);
extern void cgroup_unlock(void);
struct cgroupfs_root *root;
struct list_head sibling;
-
- void *private;
};
#define SUBSYS(_x) extern struct cgroup_subsys _x ## _subsys;
static inline int cgroup_init_early(void) { return 0; }
static inline int cgroup_init(void) { return 0; }
-static inline void cgroup_init_smp(void) {}
static inline void cgroup_fork(struct task_struct *p) {}
static inline void cgroup_fork_callbacks(struct task_struct *p) {}
static inline void cgroup_post_fork(struct task_struct *p) {}
return !(p->flags & PF_FREEZER_NOSIG);
}
-/*
- * Wake up a frozen process
- */
-extern int __thaw_process(struct task_struct *p);
-
/* Takes and releases task alloc lock using task_lock() */
extern int thaw_process(struct task_struct *p);
int (*readpages)(struct file *filp, struct address_space *mapping,
struct list_head *pages, unsigned nr_pages);
- /*
- * ext3 requires that a successful prepare_write() call be followed
- * by a commit_write() call - they must be balanced
- */
- int (*prepare_write)(struct file *, struct page *, unsigned, unsigned);
- int (*commit_write)(struct file *, struct page *, unsigned, unsigned);
-
int (*write_begin)(struct file *, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata);
#include <linux/types.h>
#include <linux/kallsyms.h>
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
extern int ftrace_enabled;
extern int
extern void ftrace_stub(unsigned long a0, unsigned long a1);
-#else /* !CONFIG_FTRACE */
+#else /* !CONFIG_FUNCTION_TRACER */
# define register_ftrace_function(ops) do { } while (0)
# define unregister_ftrace_function(ops) do { } while (0)
# define clear_ftrace_function(ops) do { } while (0)
-static inline void ftrace_kill_atomic(void) { }
-#endif /* CONFIG_FTRACE */
+static inline void ftrace_kill(void) { }
+#endif /* CONFIG_FUNCTION_TRACER */
#ifdef CONFIG_DYNAMIC_FTRACE
-# define FTRACE_HASHBITS 10
-# define FTRACE_HASHSIZE (1<<FTRACE_HASHBITS)
enum {
FTRACE_FL_FREE = (1 << 0),
};
struct dyn_ftrace {
- struct hlist_node node;
- unsigned long ip; /* address of mcount call-site */
- unsigned long flags;
+ struct list_head list;
+ unsigned long ip; /* address of mcount call-site */
+ unsigned long flags;
};
int ftrace_force_update(void);
extern unsigned char *ftrace_nop_replace(void);
extern unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr);
extern int ftrace_dyn_arch_init(void *data);
-extern int ftrace_mcount_set(unsigned long *data);
-extern int ftrace_modify_code(unsigned long ip, unsigned char *old_code,
- unsigned char *new_code);
extern int ftrace_update_ftrace_func(ftrace_func_t func);
extern void ftrace_caller(void);
extern void ftrace_call(void);
extern void mcount_call(void);
+/**
+ * ftrace_modify_code - modify code segment
+ * @ip: the address of the code segment
+ * @old_code: the contents of what is expected to be there
+ * @new_code: the code to patch in
+ *
+ * This is a very sensitive operation and great care needs
+ * to be taken by the arch. The operation should carefully
+ * read the location, check to see if what is read is indeed
+ * what we expect it to be, and then on success of the compare,
+ * it should write to the location.
+ *
+ * Return must be:
+ * 0 on success
+ * -EFAULT on error reading the location
+ * -EINVAL on a failed compare of the contents
+ * -EPERM on error writing to the location
+ * Any other value will be considered a failure.
+ */
+extern int ftrace_modify_code(unsigned long ip, unsigned char *old_code,
+ unsigned char *new_code);
+
extern int skip_trace(unsigned long ip);
extern void ftrace_release(void *start, unsigned long size);
/* totally disable ftrace - can not re-enable after this */
void ftrace_kill(void);
-void ftrace_kill_atomic(void);
static inline void tracer_disable(void)
{
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
ftrace_enabled = 0;
#endif
}
*/
static inline int __ftrace_enabled_save(void)
{
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
int saved_ftrace_enabled = ftrace_enabled;
ftrace_enabled = 0;
return saved_ftrace_enabled;
static inline void __ftrace_enabled_restore(int enabled)
{
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
ftrace_enabled = enabled;
#endif
}
#define HID_SUSPENDED 5
#define HID_CLEAR_HALT 6
#define HID_DISCONNECTED 7
+#define HID_STARTED 8
struct hid_input {
struct list_head list;
#define __FINIT .previous
#define __INITDATA .section ".init.data","aw"
+#define __INITRODATA .section ".init.rodata","a"
#define __FINITDATA .previous
#define __DEVINIT .section ".devinit.text", "ax"
#define __DEVINITDATA .section ".devinit.data", "aw"
+#define __DEVINITRODATA .section ".devinit.rodata", "a"
#define __CPUINIT .section ".cpuinit.text", "ax"
#define __CPUINITDATA .section ".cpuinit.data", "aw"
+#define __CPUINITRODATA .section ".cpuinit.rodata", "a"
#define __MEMINIT .section ".meminit.text", "ax"
#define __MEMINITDATA .section ".meminit.data", "aw"
+#define __MEMINITRODATA .section ".meminit.rodata", "a"
/* silence warnings when references are OK */
#define __REF .section ".ref.text", "ax"
#define __REFDATA .section ".ref.data", "aw"
-#define __REFCONST .section ".ref.rodata", "aw"
+#define __REFCONST .section ".ref.rodata", "a"
#ifndef __ASSEMBLY__
/*
# define might_resched() do { } while (0)
#endif
+#ifdef CONFIG_DEBUG_SPINLOCK_SLEEP
+ void __might_sleep(char *file, int line);
/**
* might_sleep - annotation for functions that can sleep
*
* be bitten later when the calling function happens to sleep when it is not
* supposed to.
*/
-#ifdef CONFIG_DEBUG_SPINLOCK_SLEEP
- void __might_sleep(char *file, int line);
# define might_sleep() \
do { __might_sleep(__FILE__, __LINE__); might_resched(); } while (0)
#else
__u32 busnr;
__u32 devfn;
__u32 flags;
+ union {
+ __u32 reserved[12];
+ };
};
struct kvm_assigned_irq {
__u32 host_irq;
__u32 guest_irq;
__u32 flags;
+ union {
+ __u32 reserved[12];
+ };
};
#define KVM_DEV_ASSIGN_ENABLE_IOMMU (1 << 0)
#define KVM_REQ_UNHALT 6
#define KVM_REQ_MMU_SYNC 7
+#define KVM_USERSPACE_IRQ_SOURCE_ID 0
+
struct kvm_vcpu;
extern struct kmem_cache *kvm_vcpu_cache;
int host_irq;
int guest_irq;
int irq_requested;
+ int irq_source_id;
struct pci_dev *dev;
struct kvm *kvm;
};
-void kvm_set_irq(struct kvm *kvm, int irq, int level);
+void kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level);
void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi);
void kvm_register_irq_ack_notifier(struct kvm *kvm,
struct kvm_irq_ack_notifier *kian);
void kvm_unregister_irq_ack_notifier(struct kvm *kvm,
struct kvm_irq_ack_notifier *kian);
+int kvm_request_irq_source_id(struct kvm *kvm);
+void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);
#ifdef CONFIG_DMAR
int kvm_iommu_map_pages(struct kvm *kvm, gfn_t base_gfn,
struct hid_device_id {
__u16 bus;
+ __u16 pad1;
__u32 vendor;
__u32 product;
kernel_ulong_t driver_data
#define _STK_LIM (8*1024*1024)
/*
- * GPG wants 32kB of mlocked memory, to make sure pass phrases
+ * GPG2 wants 64kB of mlocked memory, to make sure pass phrases
* and other sensitive information are never written to disk.
*/
-#define MLOCK_LIMIT (8 * PAGE_SIZE)
+#define MLOCK_LIMIT ((PAGE_SIZE > 64*1024) ? PAGE_SIZE : 64*1024)
/*
* Due to binary compatibility, the actual resource numbers
void (*enqueue_task) (struct rq *rq, struct task_struct *p, int wakeup);
void (*dequeue_task) (struct rq *rq, struct task_struct *p, int sleep);
void (*yield_task) (struct rq *rq);
- int (*select_task_rq)(struct task_struct *p, int sync);
void (*check_preempt_curr) (struct rq *rq, struct task_struct *p, int sync);
void (*put_prev_task) (struct rq *rq, struct task_struct *p);
#ifdef CONFIG_SMP
+ int (*select_task_rq)(struct task_struct *p, int sync);
+
unsigned long (*load_balance) (struct rq *this_rq, int this_cpu,
struct rq *busiest, unsigned long max_load_move,
struct sched_domain *sd, enum cpu_idle_type idle,
void (*pre_schedule) (struct rq *this_rq, struct task_struct *task);
void (*post_schedule) (struct rq *this_rq);
void (*task_wake_up) (struct rq *this_rq, struct task_struct *task);
-#endif
- void (*set_curr_task) (struct rq *rq);
- void (*task_tick) (struct rq *rq, struct task_struct *p, int queued);
- void (*task_new) (struct rq *rq, struct task_struct *p);
void (*set_cpus_allowed)(struct task_struct *p,
const cpumask_t *newmask);
void (*rq_online)(struct rq *rq);
void (*rq_offline)(struct rq *rq);
+#endif
+
+ void (*set_curr_task) (struct rq *rq);
+ void (*task_tick) (struct rq *rq, struct task_struct *p, int queued);
+ void (*task_new) (struct rq *rq, struct task_struct *p);
void (*switched_from) (struct rq *this_rq, struct task_struct *task,
int running);
int security_settime(struct timespec *ts, struct timezone *tz);
int security_vm_enough_memory(long pages);
int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
+int security_vm_enough_memory_kern(long pages);
int security_bprm_alloc(struct linux_binprm *bprm);
void security_bprm_free(struct linux_binprm *bprm);
void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe);
return cap_vm_enough_memory(current->mm, pages);
}
+static inline int security_vm_enough_memory_kern(long pages)
+{
+ return cap_vm_enough_memory(current->mm, pages);
+}
+
static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
{
return cap_vm_enough_memory(mm, pages);
* duplex (MicroWire) controllers. Provide chipslect() and txrx_bufs(),
* and custom setup()/cleanup() methods.
*/
+
+#include <linux/workqueue.h>
+
struct spi_bitbang {
struct workqueue_struct *workqueue;
struct work_struct work;
* ieee80211_beacon_get - beacon generation function
* @hw: pointer obtained from ieee80211_alloc_hw().
* @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
- * @control: will be filled with information needed to send this beacon.
*
* If the beacon frames are generated by the host system (i.e., not in
* hardware/firmware), the low-level driver uses this function to receive
* ieee80211_get_buffered_bc - accessing buffered broadcast and multicast frames
* @hw: pointer as obtained from ieee80211_alloc_hw().
* @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
- * @control: will be filled with information needed to send returned frame.
*
* Function for accessing buffered broadcast and multicast frames. If
* hardware/firmware does not implement buffering of broadcast/multicast
*
* @keyconf: the parameter passed with the set key
* @skb: the skb for which the key is needed
- * @rc4key: a buffer to which the key will be written
* @type: TBD
- * @key: TBD
+ * @key: a buffer to which the key will be written
*/
void ieee80211_get_tkip_key(struct ieee80211_key_conf *keyconf,
struct sk_buff *skb,
* @hw: pointer as obtained from ieee80211_alloc_hw().
* @ra: receiver address of the BA session recipient
* @tid: the TID to BA on.
- * @return: success if addBA request was sent, failure otherwise
+ *
+ * Return: success if addBA request was sent, failure otherwise
*
* Although mac80211/low level driver/user space application can estimate
* the need to start aggregation on a certain RA/TID, the session level
* @ra: receiver address of the BA session recipient
* @tid: the TID to stop BA.
* @initiator: if indicates initiator DELBA frame will be sent.
- * @return: error if no sta with matching da found, success otherwise
+ *
+ * Return: error if no sta with matching da found, success otherwise
*
* Although mac80211/low level driver/user space application can estimate
* the need to stop aggregation on a certain RA/TID, the session level
*/
#define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) \
((unsigned long)&(struct soc_mixer_control) \
- {.reg = xreg, .shift = xshift, .max = xmax, .invert = xinvert})
+ {.reg = xreg, .shift = xshift, .rshift = xshift, .max = xmax, \
+ .invert = xinvert})
#define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
((unsigned long)&(struct soc_mixer_control) \
{.reg = xreg, .max = xmax, .invert = xinvert})
depends on CGROUPS && RESOURCE_COUNTERS
select MM_OWNER
help
- Provides a memory resource controller that manages both page cache and
- RSS memory.
+ Provides a memory resource controller that manages both anonymous
+ memory and page cache. (See Documentation/controllers/memory.txt)
Note that setting this option increases fixed memory overhead
- associated with each page of memory in the system by 4/8 bytes
- and also increases cache misses because struct page on many 64bit
- systems will not fit into a single cache line anymore.
+ associated with each page of memory in the system. By this,
+ 20(40)bytes/PAGE_SIZE on 32(64)bit system will be occupied by memory
+ usage tracking struct at boot. Total amount of this is printed out
+ at boot.
Only enable when you're ok with these trade offs and really
- sure you need the memory resource controller.
+ sure you need the memory resource controller. Even when you enable
+ this, you can set "cgroup_disable=memory" at your boot option to
+ disable memory resource controller and you can avoid overheads.
+ (and lose benefits of memory resource contoller)
This config option also selects MM_OWNER config option, which
could in turn add some fork/exit overhead.
-
+#include <linux/delay.h>
#include <linux/raid/md.h>
#include <linux/delay.h>
CFLAGS_REMOVE_sched.o = -mno-spe
-ifdef CONFIG_FTRACE
+ifdef CONFIG_FUNCTION_TRACER
# Do not trace debug files and internal ftrace files
CFLAGS_REMOVE_lockdep.o = -pg
CFLAGS_REMOVE_lockdep_proc.o = -pg
obj-$(CONFIG_TRACEPOINTS) += tracepoint.o
obj-$(CONFIG_LATENCYTOP) += latencytop.o
obj-$(CONFIG_HAVE_GENERIC_DMA_COHERENT) += dma-coherent.o
-obj-$(CONFIG_FTRACE) += trace/
+obj-$(CONFIG_FUNCTION_TRACER) += trace/
obj-$(CONFIG_TRACING) += trace/
obj-$(CONFIG_SMP) += sched_cpupri.o
struct task_struct *task)
{
struct freezer *freezer;
- int retval;
- /* Anything frozen can't move or be moved to/from */
+ /*
+ * Anything frozen can't move or be moved to/from.
+ *
+ * Since orig_freezer->state == FROZEN means that @task has been
+ * frozen, so it's sufficient to check the latter condition.
+ */
if (is_task_frozen_enough(task))
return -EBUSY;
if (freezer->state == CGROUP_FROZEN)
return -EBUSY;
- retval = 0;
- task_lock(task);
- freezer = task_freezer(task);
- if (freezer->state == CGROUP_FROZEN)
- retval = -EBUSY;
- task_unlock(task);
- return retval;
+ return 0;
}
static void freezer_fork(struct cgroup_subsys *ss, struct task_struct *task)
freezer = task_freezer(task);
task_unlock(task);
- BUG_ON(freezer->state == CGROUP_FROZEN);
spin_lock_irq(&freezer->lock);
+ BUG_ON(freezer->state == CGROUP_FROZEN);
+
/* Locking avoids race with FREEZING -> THAWED transitions. */
if (freezer->state == CGROUP_FREEZING)
freeze_task(task, true);
return num_cant_freeze_now ? -EBUSY : 0;
}
-static int unfreeze_cgroup(struct cgroup *cgroup, struct freezer *freezer)
+static void unfreeze_cgroup(struct cgroup *cgroup, struct freezer *freezer)
{
struct cgroup_iter it;
struct task_struct *task;
cgroup_iter_start(cgroup, &it);
while ((task = cgroup_iter_next(cgroup, &it))) {
- int do_wake;
-
- task_lock(task);
- do_wake = __thaw_process(task);
- task_unlock(task);
- if (do_wake)
- wake_up_process(task);
+ thaw_process(task);
}
cgroup_iter_end(cgroup, &it);
- freezer->state = CGROUP_THAWED;
- return 0;
+ freezer->state = CGROUP_THAWED;
}
static int freezer_change_state(struct cgroup *cgroup,
int retval = 0;
freezer = cgroup_freezer(cgroup);
+
spin_lock_irq(&freezer->lock);
+
update_freezer_state(cgroup, freezer);
if (goal_state == freezer->state)
goto out;
- switch (freezer->state) {
+
+ switch (goal_state) {
case CGROUP_THAWED:
- retval = try_to_freeze_cgroup(cgroup, freezer);
+ unfreeze_cgroup(cgroup, freezer);
break;
- case CGROUP_FREEZING:
- if (goal_state == CGROUP_FROZEN) {
- /* Userspace is retrying after
- * "/bin/echo FROZEN > freezer.state" returned -EBUSY */
- retval = try_to_freeze_cgroup(cgroup, freezer);
- break;
- }
- /* state == FREEZING and goal_state == THAWED, so unfreeze */
case CGROUP_FROZEN:
- retval = unfreeze_cgroup(cgroup, freezer);
+ retval = try_to_freeze_cgroup(cgroup, freezer);
break;
default:
- break;
+ BUG();
}
out:
spin_unlock_irq(&freezer->lock);
}
}
-/*
- * Wake up a frozen process
- *
- * task_lock() is needed to prevent the race with refrigerator() which may
- * occur if the freezing of tasks fails. Namely, without the lock, if the
- * freezing of tasks failed, thaw_tasks() might have run before a task in
- * refrigerator() could call frozen_process(), in which case the task would be
- * frozen and no one would thaw it.
- */
-int __thaw_process(struct task_struct *p)
+static int __thaw_process(struct task_struct *p)
{
if (frozen(p)) {
p->flags &= ~PF_FROZEN;
return 0;
}
+/*
+ * Wake up a frozen process
+ *
+ * task_lock() is needed to prevent the race with refrigerator() which may
+ * occur if the freezing of tasks fails. Namely, without the lock, if the
+ * freezing of tasks failed, thaw_tasks() might have run before a task in
+ * refrigerator() could call frozen_process(), in which case the task would be
+ * frozen and no one would thaw it.
+ */
int thaw_process(struct task_struct *p)
{
task_lock(p);
}
}
-void register_default_affinity_proc(void)
+static void register_default_affinity_proc(void)
{
#ifdef CONFIG_SMP
proc_create("irq/default_smp_affinity", 0600, NULL,
/*
* Hardirqs will be enabled:
*/
-void trace_hardirqs_on_caller(unsigned long a0)
+void trace_hardirqs_on_caller(unsigned long ip)
{
struct task_struct *curr = current;
- unsigned long ip;
- time_hardirqs_on(CALLER_ADDR0, a0);
+ time_hardirqs_on(CALLER_ADDR0, ip);
if (unlikely(!debug_locks || current->lockdep_recursion))
return;
}
/* we'll do an OFF -> ON transition: */
curr->hardirqs_enabled = 1;
- ip = (unsigned long) __builtin_return_address(0);
if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
return;
/*
* Hardirqs were disabled:
*/
-void trace_hardirqs_off_caller(unsigned long a0)
+void trace_hardirqs_off_caller(unsigned long ip)
{
struct task_struct *curr = current;
- time_hardirqs_off(CALLER_ADDR0, a0);
+ time_hardirqs_off(CALLER_ADDR0, ip);
if (unlikely(!debug_locks || current->lockdep_recursion))
return;
* We have done an ON -> OFF transition:
*/
curr->hardirqs_enabled = 0;
- curr->hardirq_disable_ip = _RET_IP_;
+ curr->hardirq_disable_ip = ip;
curr->hardirq_disable_event = ++curr->irq_events;
debug_atomic_inc(&hardirqs_off_events);
} else
}
printk(" ignoring it.\n");
unlock = 0;
+ } else {
+ if (count != 10)
+ printk(KERN_CONT " locked it.\n");
}
- if (count != 10)
- printk(" locked it.\n");
do_each_thread(g, p) {
/*
}
#endif
-/*
- * Return the number of unread characters in the log buffer.
- */
-static int log_buf_get_len(void)
-{
- return logged_chars;
-}
-
-/*
- * Copy a range of characters from the log buffer.
- */
-int log_buf_copy(char *dest, int idx, int len)
-{
- int ret, max;
- bool took_lock = false;
-
- if (!oops_in_progress) {
- spin_lock_irq(&logbuf_lock);
- took_lock = true;
- }
-
- max = log_buf_get_len();
- if (idx < 0 || idx >= max) {
- ret = -1;
- } else {
- if (len > max)
- len = max;
- ret = len;
- idx += (log_end - max);
- while (len-- > 0)
- dest[len] = LOG_BUF(idx + len);
- }
-
- if (took_lock)
- spin_unlock_irq(&logbuf_lock);
-
- return ret;
-}
-
/*
* Commands to do_syslog:
*
__setup("profile=", profile_setup);
-int profile_init(void)
+int __ref profile_init(void)
{
int buffer_bytes;
if (!prof_on)
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/device.h>
+#include <linux/pfn.h>
#include <asm/io.h>
}
-void reserve_region_with_split(struct resource *root,
+void __init reserve_region_with_split(struct resource *root,
resource_size_t start, resource_size_t end,
const char *name)
{
continue;
if (p->end < addr)
continue;
- if (p->start <= addr && (p->end >= addr + size - 1))
+ if (PFN_DOWN(p->start) <= PFN_DOWN(addr) &&
+ PFN_DOWN(p->end) >= PFN_DOWN(addr + size - 1))
continue;
printk(KERN_WARNING "resource map sanity check conflict: "
"0x%llx 0x%llx 0x%llx 0x%llx %s\n",
u64 exec_clock;
u64 min_vruntime;
- u64 pair_start;
struct rb_root tasks_timeline;
struct rb_node *rb_leftmost;
} else
this_load_per_task = cpu_avg_load_per_task(this_cpu);
- if (max_load - this_load + 2*busiest_load_per_task >=
+ if (max_load - this_load + busiest_load_per_task >=
busiest_load_per_task * imbn) {
*imbalance = busiest_load_per_task;
return busiest;
{
struct proc_dir_entry *pe;
- pe = proc_create("sched_debug", 0644, NULL, &sched_debug_fops);
+ pe = proc_create("sched_debug", 0444, NULL, &sched_debug_fops);
if (!pe)
return -ENOMEM;
return 0;
return se->parent;
}
+/* return depth at which a sched entity is present in the hierarchy */
+static inline int depth_se(struct sched_entity *se)
+{
+ int depth = 0;
+
+ for_each_sched_entity(se)
+ depth++;
+
+ return depth;
+}
+
+static void
+find_matching_se(struct sched_entity **se, struct sched_entity **pse)
+{
+ int se_depth, pse_depth;
+
+ /*
+ * preemption test can be made between sibling entities who are in the
+ * same cfs_rq i.e who have a common parent. Walk up the hierarchy of
+ * both tasks until we find their ancestors who are siblings of common
+ * parent.
+ */
+
+ /* First walk up until both entities are at same depth */
+ se_depth = depth_se(*se);
+ pse_depth = depth_se(*pse);
+
+ while (se_depth > pse_depth) {
+ se_depth--;
+ *se = parent_entity(*se);
+ }
+
+ while (pse_depth > se_depth) {
+ pse_depth--;
+ *pse = parent_entity(*pse);
+ }
+
+ while (!is_same_group(*se, *pse)) {
+ *se = parent_entity(*se);
+ *pse = parent_entity(*pse);
+ }
+}
+
#else /* CONFIG_FAIR_GROUP_SCHED */
static inline struct rq *rq_of(struct cfs_rq *cfs_rq)
return NULL;
}
+static inline void
+find_matching_se(struct sched_entity **se, struct sched_entity **pse)
+{
+}
+
#endif /* CONFIG_FAIR_GROUP_SCHED */
return se->vruntime - cfs_rq->min_vruntime;
}
+static void update_min_vruntime(struct cfs_rq *cfs_rq)
+{
+ u64 vruntime = cfs_rq->min_vruntime;
+
+ if (cfs_rq->curr)
+ vruntime = cfs_rq->curr->vruntime;
+
+ if (cfs_rq->rb_leftmost) {
+ struct sched_entity *se = rb_entry(cfs_rq->rb_leftmost,
+ struct sched_entity,
+ run_node);
+
+ if (vruntime == cfs_rq->min_vruntime)
+ vruntime = se->vruntime;
+ else
+ vruntime = min_vruntime(vruntime, se->vruntime);
+ }
+
+ cfs_rq->min_vruntime = max_vruntime(cfs_rq->min_vruntime, vruntime);
+}
+
/*
* Enqueue an entity into the rb-tree:
*/
* Maintain a cache of leftmost tree entries (it is frequently
* used):
*/
- if (leftmost) {
+ if (leftmost)
cfs_rq->rb_leftmost = &se->run_node;
- /*
- * maintain cfs_rq->min_vruntime to be a monotonic increasing
- * value tracking the leftmost vruntime in the tree.
- */
- cfs_rq->min_vruntime =
- max_vruntime(cfs_rq->min_vruntime, se->vruntime);
- }
rb_link_node(&se->run_node, parent, link);
rb_insert_color(&se->run_node, &cfs_rq->tasks_timeline);
{
if (cfs_rq->rb_leftmost == &se->run_node) {
struct rb_node *next_node;
- struct sched_entity *next;
next_node = rb_next(&se->run_node);
cfs_rq->rb_leftmost = next_node;
-
- if (next_node) {
- next = rb_entry(next_node,
- struct sched_entity, run_node);
- cfs_rq->min_vruntime =
- max_vruntime(cfs_rq->min_vruntime,
- next->vruntime);
- }
}
if (cfs_rq->next == se)
schedstat_add(cfs_rq, exec_clock, delta_exec);
delta_exec_weighted = calc_delta_fair(delta_exec, curr);
curr->vruntime += delta_exec_weighted;
+ update_min_vruntime(cfs_rq);
}
static void update_curr(struct cfs_rq *cfs_rq)
static void
place_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int initial)
{
- u64 vruntime;
-
- if (first_fair(cfs_rq)) {
- vruntime = min_vruntime(cfs_rq->min_vruntime,
- __pick_next_entity(cfs_rq)->vruntime);
- } else
- vruntime = cfs_rq->min_vruntime;
+ u64 vruntime = cfs_rq->min_vruntime;
/*
* The 'current' period is already promised to the current tasks,
if (se != cfs_rq->curr)
__dequeue_entity(cfs_rq, se);
account_entity_dequeue(cfs_rq, se);
+ update_min_vruntime(cfs_rq);
}
/*
se->prev_sum_exec_runtime = se->sum_exec_runtime;
}
+static int
+wakeup_preempt_entity(struct sched_entity *curr, struct sched_entity *se);
+
static struct sched_entity *
pick_next(struct cfs_rq *cfs_rq, struct sched_entity *se)
{
- struct rq *rq = rq_of(cfs_rq);
- u64 pair_slice = rq->clock - cfs_rq->pair_start;
-
- if (!cfs_rq->next || pair_slice > sysctl_sched_min_granularity) {
- cfs_rq->pair_start = rq->clock;
+ if (!cfs_rq->next || wakeup_preempt_entity(cfs_rq->next, se) == 1)
return se;
- }
return cfs_rq->next;
}
if (!(this_sd->flags & SD_WAKE_AFFINE) || !sched_feat(AFFINE_WAKEUPS))
return 0;
- if (!sync && sched_feat(SYNC_WAKEUPS) &&
- curr->se.avg_overlap < sysctl_sched_migration_cost &&
- p->se.avg_overlap < sysctl_sched_migration_cost)
- sync = 1;
+ if (sync && (curr->se.avg_overlap > sysctl_sched_migration_cost ||
+ p->se.avg_overlap > sysctl_sched_migration_cost))
+ sync = 0;
/*
* If sync wakeup then subtract the (maximum possible)
* More easily preempt - nice tasks, while not making it harder for
* + nice tasks.
*/
- if (sched_feat(ASYM_GRAN))
- gran = calc_delta_mine(gran, NICE_0_LOAD, &se->load);
+ if (!sched_feat(ASYM_GRAN) || se->load.weight > NICE_0_LOAD)
+ gran = calc_delta_fair(sysctl_sched_wakeup_granularity, se);
return gran;
}
+/*
+ * Should 'se' preempt 'curr'.
+ *
+ * |s1
+ * |s2
+ * |s3
+ * g
+ * |<--->|c
+ *
+ * w(c, s1) = -1
+ * w(c, s2) = 0
+ * w(c, s3) = 1
+ *
+ */
+static int
+wakeup_preempt_entity(struct sched_entity *curr, struct sched_entity *se)
+{
+ s64 gran, vdiff = curr->vruntime - se->vruntime;
+
+ if (vdiff <= 0)
+ return -1;
+
+ gran = wakeup_gran(curr);
+ if (vdiff > gran)
+ return 1;
+
+ return 0;
+}
+
/*
* Preempt the current task with a newly woken task if needed:
*/
struct task_struct *curr = rq->curr;
struct cfs_rq *cfs_rq = task_cfs_rq(curr);
struct sched_entity *se = &curr->se, *pse = &p->se;
- s64 delta_exec;
if (unlikely(rt_prio(p->prio))) {
update_rq_clock(rq);
return;
}
- delta_exec = se->sum_exec_runtime - se->prev_sum_exec_runtime;
- if (delta_exec > wakeup_gran(pse))
- resched_task(curr);
+ find_matching_se(&se, &pse);
+
+ while (se) {
+ BUG_ON(!pse);
+
+ if (wakeup_preempt_entity(se, pse) == 1) {
+ resched_task(curr);
+ break;
+ }
+
+ se = parent_entity(se);
+ pse = parent_entity(pse);
+ }
}
static struct task_struct *pick_next_task_fair(struct rq *rq)
.enqueue_task = enqueue_task_fair,
.dequeue_task = dequeue_task_fair,
.yield_task = yield_task_fair,
-#ifdef CONFIG_SMP
- .select_task_rq = select_task_rq_fair,
-#endif /* CONFIG_SMP */
.check_preempt_curr = check_preempt_wakeup,
.put_prev_task = put_prev_task_fair,
#ifdef CONFIG_SMP
+ .select_task_rq = select_task_rq_fair,
+
.load_balance = load_balance_fair,
.move_one_task = move_one_task_fair,
#endif
/* dequeue is not valid, we print a debug message there: */
.dequeue_task = dequeue_task_idle,
-#ifdef CONFIG_SMP
- .select_task_rq = select_task_rq_idle,
-#endif /* CONFIG_SMP */
.check_preempt_curr = check_preempt_curr_idle,
.put_prev_task = put_prev_task_idle,
#ifdef CONFIG_SMP
+ .select_task_rq = select_task_rq_idle,
+
.load_balance = load_balance_idle,
.move_one_task = move_one_task_idle,
#endif
.enqueue_task = enqueue_task_rt,
.dequeue_task = dequeue_task_rt,
.yield_task = yield_task_rt,
-#ifdef CONFIG_SMP
- .select_task_rq = select_task_rq_rt,
-#endif /* CONFIG_SMP */
.check_preempt_curr = check_preempt_curr_rt,
.put_prev_task = put_prev_task_rt,
#ifdef CONFIG_SMP
+ .select_task_rq = select_task_rq_rt,
+
.load_balance = load_balance_rt,
.move_one_task = move_one_task_rt,
.set_cpus_allowed = set_cpus_allowed_rt,
struct task_struct * p;
for_each_process(p) {
- if (p->pid > 1 && !same_thread_group(p, current)) {
+ if (task_pid_vnr(p) > 1 &&
+ !same_thread_group(p, current)) {
int err = group_send_sig_info(sig, info, p);
++count;
if (err != -EPERM)
.mode = 0644,
.proc_handler = &proc_dointvec,
},
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
{
.ctl_name = CTL_UNNUMBERED,
.procname = "ftrace_enabled",
#
-# Architectures that offer an FTRACE implementation should select HAVE_FTRACE:
+# Architectures that offer an FUNCTION_TRACER implementation should
+# select HAVE_FUNCTION_TRACER:
#
config NOP_TRACER
bool
-config HAVE_FTRACE
+config HAVE_FUNCTION_TRACER
bool
- select NOP_TRACER
config HAVE_DYNAMIC_FTRACE
bool
select RING_BUFFER
select STACKTRACE
select TRACEPOINTS
+ select NOP_TRACER
+
+menu "Tracers"
-config FTRACE
+config FUNCTION_TRACER
bool "Kernel Function Tracer"
- depends on HAVE_FTRACE
+ depends on HAVE_FUNCTION_TRACER
depends on DEBUG_KERNEL
select FRAME_POINTER
select TRACING
default n
depends on TRACE_IRQFLAGS_SUPPORT
depends on GENERIC_TIME
- depends on HAVE_FTRACE
depends on DEBUG_KERNEL
select TRACE_IRQFLAGS
select TRACING
default n
depends on GENERIC_TIME
depends on PREEMPT
- depends on HAVE_FTRACE
depends on DEBUG_KERNEL
select TRACING
select TRACER_MAX_TRACE
config SCHED_TRACER
bool "Scheduling Latency Tracer"
- depends on HAVE_FTRACE
depends on DEBUG_KERNEL
select TRACING
select CONTEXT_SWITCH_TRACER
config CONTEXT_SWITCH_TRACER
bool "Trace process context switches"
- depends on HAVE_FTRACE
depends on DEBUG_KERNEL
select TRACING
select MARKERS
config BOOT_TRACER
bool "Trace boot initcalls"
- depends on HAVE_FTRACE
depends on DEBUG_KERNEL
select TRACING
+ select CONTEXT_SWITCH_TRACER
help
This tracer helps developers to optimize boot times: it records
the timings of the initcalls and traces key events and the identity
config STACK_TRACER
bool "Trace max stack"
- depends on HAVE_FTRACE
+ depends on HAVE_FUNCTION_TRACER
depends on DEBUG_KERNEL
- select FTRACE
+ select FUNCTION_TRACER
select STACKTRACE
help
This special tracer records the maximum stack footprint of the
config DYNAMIC_FTRACE
bool "enable/disable ftrace tracepoints dynamically"
- depends on FTRACE
+ depends on FUNCTION_TRACER
depends on HAVE_DYNAMIC_FTRACE
depends on DEBUG_KERNEL
default y
with a No-Op instruction) as they are called. A table is
created to dynamically enable them again.
- This way a CONFIG_FTRACE kernel is slightly larger, but otherwise
+ This way a CONFIG_FUNCTION_TRACER kernel is slightly larger, but otherwise
has native performance as long as no tracing is active.
The changes to the code are done by a kernel thread that
a series of tests are made to verify that the tracer is
functioning properly. It will do tests on all the configured
tracers of ftrace.
+
+endmenu
# Do not instrument the tracer itself:
-ifdef CONFIG_FTRACE
+ifdef CONFIG_FUNCTION_TRACER
ORIG_CFLAGS := $(KBUILD_CFLAGS)
KBUILD_CFLAGS = $(subst -pg,,$(ORIG_CFLAGS))
obj-y += trace_selftest_dynamic.o
endif
-obj-$(CONFIG_FTRACE) += libftrace.o
+obj-$(CONFIG_FUNCTION_TRACER) += libftrace.o
obj-$(CONFIG_RING_BUFFER) += ring_buffer.o
obj-$(CONFIG_TRACING) += trace.o
obj-$(CONFIG_CONTEXT_SWITCH_TRACER) += trace_sched_switch.o
obj-$(CONFIG_SYSPROF_TRACER) += trace_sysprof.o
-obj-$(CONFIG_FTRACE) += trace_functions.o
+obj-$(CONFIG_FUNCTION_TRACER) += trace_functions.o
obj-$(CONFIG_IRQSOFF_TRACER) += trace_irqsoff.o
obj-$(CONFIG_PREEMPT_TRACER) += trace_irqsoff.o
obj-$(CONFIG_SCHED_TRACER) += trace_sched_wakeup.o
#include <linux/ftrace.h>
#include <linux/sysctl.h>
#include <linux/ctype.h>
-#include <linux/hash.h>
#include <linux/list.h>
#include <asm/ftrace.h>
#include "trace.h"
+#define FTRACE_WARN_ON(cond) \
+ do { \
+ if (WARN_ON(cond)) \
+ ftrace_kill(); \
+ } while (0)
+
+#define FTRACE_WARN_ON_ONCE(cond) \
+ do { \
+ if (WARN_ON_ONCE(cond)) \
+ ftrace_kill(); \
+ } while (0)
+
/* ftrace_enabled is a method to turn ftrace on or off */
int ftrace_enabled __read_mostly;
static int last_ftrace_enabled;
}
#ifdef CONFIG_DYNAMIC_FTRACE
-
#ifndef CONFIG_FTRACE_MCOUNT_RECORD
-/*
- * The hash lock is only needed when the recording of the mcount
- * callers are dynamic. That is, by the caller themselves and
- * not recorded via the compilation.
- */
-static DEFINE_SPINLOCK(ftrace_hash_lock);
-#define ftrace_hash_lock(flags) spin_lock_irqsave(&ftrace_hash_lock, flags)
-#define ftrace_hash_unlock(flags) \
- spin_unlock_irqrestore(&ftrace_hash_lock, flags)
-#else
-/* This is protected via the ftrace_lock with MCOUNT_RECORD. */
-#define ftrace_hash_lock(flags) do { (void)(flags); } while (0)
-#define ftrace_hash_unlock(flags) do { } while(0)
+# error Dynamic ftrace depends on MCOUNT_RECORD
#endif
/*
*/
static unsigned long mcount_addr = MCOUNT_ADDR;
-static struct task_struct *ftraced_task;
-
enum {
FTRACE_ENABLE_CALLS = (1 << 0),
FTRACE_DISABLE_CALLS = (1 << 1),
static int ftrace_filtered;
static int tracing_on;
-static int frozen_record_count;
-
-static struct hlist_head ftrace_hash[FTRACE_HASHSIZE];
-static DEFINE_PER_CPU(int, ftrace_shutdown_disable_cpu);
+static LIST_HEAD(ftrace_new_addrs);
-static DEFINE_MUTEX(ftraced_lock);
static DEFINE_MUTEX(ftrace_regex_lock);
struct ftrace_page {
static struct ftrace_page *ftrace_pages_start;
static struct ftrace_page *ftrace_pages;
-static int ftraced_trigger;
-static int ftraced_suspend;
-static int ftraced_stop;
-
-static int ftrace_record_suspend;
-
static struct dyn_ftrace *ftrace_free_records;
#ifdef CONFIG_KPROBES
+
+static int frozen_record_count;
+
static inline void freeze_record(struct dyn_ftrace *rec)
{
if (!(rec->flags & FTRACE_FL_FROZEN)) {
# define record_frozen(rec) ({ 0; })
#endif /* CONFIG_KPROBES */
-int skip_trace(unsigned long ip)
-{
- unsigned long fl;
- struct dyn_ftrace *rec;
- struct hlist_node *t;
- struct hlist_head *head;
-
- if (frozen_record_count == 0)
- return 0;
-
- head = &ftrace_hash[hash_long(ip, FTRACE_HASHBITS)];
- hlist_for_each_entry_rcu(rec, t, head, node) {
- if (rec->ip == ip) {
- if (record_frozen(rec)) {
- if (rec->flags & FTRACE_FL_FAILED)
- return 1;
-
- if (!(rec->flags & FTRACE_FL_CONVERTED))
- return 1;
-
- if (!tracing_on || !ftrace_enabled)
- return 1;
-
- if (ftrace_filtered) {
- fl = rec->flags & (FTRACE_FL_FILTER |
- FTRACE_FL_NOTRACE);
- if (!fl || (fl & FTRACE_FL_NOTRACE))
- return 1;
- }
- }
- break;
- }
- }
-
- return 0;
-}
-
-static inline int
-ftrace_ip_in_hash(unsigned long ip, unsigned long key)
-{
- struct dyn_ftrace *p;
- struct hlist_node *t;
- int found = 0;
-
- hlist_for_each_entry_rcu(p, t, &ftrace_hash[key], node) {
- if (p->ip == ip) {
- found = 1;
- break;
- }
- }
-
- return found;
-}
-
-static inline void
-ftrace_add_hash(struct dyn_ftrace *node, unsigned long key)
-{
- hlist_add_head_rcu(&node->node, &ftrace_hash[key]);
-}
-
-/* called from kstop_machine */
-static inline void ftrace_del_hash(struct dyn_ftrace *node)
-{
- hlist_del(&node->node);
-}
-
static void ftrace_free_rec(struct dyn_ftrace *rec)
{
rec->ip = (unsigned long)ftrace_free_records;
}
}
spin_unlock(&ftrace_lock);
-
}
static struct dyn_ftrace *ftrace_alloc_dyn_node(unsigned long ip)
rec = ftrace_free_records;
if (unlikely(!(rec->flags & FTRACE_FL_FREE))) {
- WARN_ON_ONCE(1);
+ FTRACE_WARN_ON_ONCE(1);
ftrace_free_records = NULL;
- ftrace_disabled = 1;
- ftrace_enabled = 0;
return NULL;
}
}
if (ftrace_pages->index == ENTRIES_PER_PAGE) {
- if (!ftrace_pages->next)
- return NULL;
+ if (!ftrace_pages->next) {
+ /* allocate another page */
+ ftrace_pages->next =
+ (void *)get_zeroed_page(GFP_KERNEL);
+ if (!ftrace_pages->next)
+ return NULL;
+ }
ftrace_pages = ftrace_pages->next;
}
return &ftrace_pages->records[ftrace_pages->index++];
}
-static void
+static struct dyn_ftrace *
ftrace_record_ip(unsigned long ip)
{
- struct dyn_ftrace *node;
- unsigned long flags;
- unsigned long key;
- int resched;
- int cpu;
+ struct dyn_ftrace *rec;
if (!ftrace_enabled || ftrace_disabled)
- return;
-
- resched = need_resched();
- preempt_disable_notrace();
+ return NULL;
- /*
- * We simply need to protect against recursion.
- * Use the the raw version of smp_processor_id and not
- * __get_cpu_var which can call debug hooks that can
- * cause a recursive crash here.
- */
- cpu = raw_smp_processor_id();
- per_cpu(ftrace_shutdown_disable_cpu, cpu)++;
- if (per_cpu(ftrace_shutdown_disable_cpu, cpu) != 1)
- goto out;
-
- if (unlikely(ftrace_record_suspend))
- goto out;
-
- key = hash_long(ip, FTRACE_HASHBITS);
-
- WARN_ON_ONCE(key >= FTRACE_HASHSIZE);
-
- if (ftrace_ip_in_hash(ip, key))
- goto out;
-
- ftrace_hash_lock(flags);
-
- /* This ip may have hit the hash before the lock */
- if (ftrace_ip_in_hash(ip, key))
- goto out_unlock;
-
- node = ftrace_alloc_dyn_node(ip);
- if (!node)
- goto out_unlock;
-
- node->ip = ip;
-
- ftrace_add_hash(node, key);
+ rec = ftrace_alloc_dyn_node(ip);
+ if (!rec)
+ return NULL;
- ftraced_trigger = 1;
+ rec->ip = ip;
- out_unlock:
- ftrace_hash_unlock(flags);
- out:
- per_cpu(ftrace_shutdown_disable_cpu, cpu)--;
+ list_add(&rec->list, &ftrace_new_addrs);
- /* prevent recursion with scheduler */
- if (resched)
- preempt_enable_no_resched_notrace();
- else
- preempt_enable_notrace();
+ return rec;
}
#define FTRACE_ADDR ((long)(ftrace_caller))
rec->flags |= FTRACE_FL_FAILED;
if ((system_state == SYSTEM_BOOTING) ||
!core_kernel_text(rec->ip)) {
- ftrace_del_hash(rec);
ftrace_free_rec(rec);
}
}
}
}
-static void ftrace_shutdown_replenish(void)
-{
- if (ftrace_pages->next)
- return;
-
- /* allocate another page */
- ftrace_pages->next = (void *)get_zeroed_page(GFP_KERNEL);
-}
-
static void print_ip_ins(const char *fmt, unsigned char *p)
{
int i;
{
unsigned long ip;
unsigned char *nop, *call;
- int failed;
+ int ret;
ip = rec->ip;
nop = ftrace_nop_replace();
call = ftrace_call_replace(ip, mcount_addr);
- failed = ftrace_modify_code(ip, call, nop);
- if (failed) {
- switch (failed) {
- case 1:
- WARN_ON_ONCE(1);
+ ret = ftrace_modify_code(ip, call, nop);
+ if (ret) {
+ switch (ret) {
+ case -EFAULT:
+ FTRACE_WARN_ON_ONCE(1);
pr_info("ftrace faulted on modifying ");
print_ip_sym(ip);
break;
- case 2:
- WARN_ON_ONCE(1);
+ case -EINVAL:
+ FTRACE_WARN_ON_ONCE(1);
pr_info("ftrace failed to modify ");
print_ip_sym(ip);
print_ip_ins(" expected: ", call);
print_ip_ins(" replace: ", nop);
printk(KERN_CONT "\n");
break;
+ case -EPERM:
+ FTRACE_WARN_ON_ONCE(1);
+ pr_info("ftrace faulted on writing ");
+ print_ip_sym(ip);
+ break;
+ default:
+ FTRACE_WARN_ON_ONCE(1);
+ pr_info("ftrace faulted on unknown error ");
+ print_ip_sym(ip);
}
rec->flags |= FTRACE_FL_FAILED;
return 1;
}
-static int __ftrace_update_code(void *ignore);
-
static int __ftrace_modify_code(void *data)
{
- unsigned long addr;
int *command = data;
if (*command & FTRACE_ENABLE_CALLS) {
- /*
- * Update any recorded ips now that we have the
- * machine stopped
- */
- __ftrace_update_code(NULL);
ftrace_replace_code(1);
tracing_on = 1;
} else if (*command & FTRACE_DISABLE_CALLS) {
if (*command & FTRACE_UPDATE_TRACE_FUNC)
ftrace_update_ftrace_func(ftrace_trace_function);
- if (*command & FTRACE_ENABLE_MCOUNT) {
- addr = (unsigned long)ftrace_record_ip;
- ftrace_mcount_set(&addr);
- } else if (*command & FTRACE_DISABLE_MCOUNT) {
- addr = (unsigned long)ftrace_stub;
- ftrace_mcount_set(&addr);
- }
-
return 0;
}
stop_machine(__ftrace_modify_code, &command, NULL);
}
-void ftrace_disable_daemon(void)
-{
- /* Stop the daemon from calling kstop_machine */
- mutex_lock(&ftraced_lock);
- ftraced_stop = 1;
- mutex_unlock(&ftraced_lock);
-
- ftrace_force_update();
-}
-
-void ftrace_enable_daemon(void)
-{
- mutex_lock(&ftraced_lock);
- ftraced_stop = 0;
- mutex_unlock(&ftraced_lock);
-
- ftrace_force_update();
-}
-
static ftrace_func_t saved_ftrace_func;
+static int ftrace_start;
+static DEFINE_MUTEX(ftrace_start_lock);
static void ftrace_startup(void)
{
if (unlikely(ftrace_disabled))
return;
- mutex_lock(&ftraced_lock);
- ftraced_suspend++;
- if (ftraced_suspend == 1)
+ mutex_lock(&ftrace_start_lock);
+ ftrace_start++;
+ if (ftrace_start == 1)
command |= FTRACE_ENABLE_CALLS;
if (saved_ftrace_func != ftrace_trace_function) {
ftrace_run_update_code(command);
out:
- mutex_unlock(&ftraced_lock);
+ mutex_unlock(&ftrace_start_lock);
}
static void ftrace_shutdown(void)
if (unlikely(ftrace_disabled))
return;
- mutex_lock(&ftraced_lock);
- ftraced_suspend--;
- if (!ftraced_suspend)
+ mutex_lock(&ftrace_start_lock);
+ ftrace_start--;
+ if (!ftrace_start)
command |= FTRACE_DISABLE_CALLS;
if (saved_ftrace_func != ftrace_trace_function) {
ftrace_run_update_code(command);
out:
- mutex_unlock(&ftraced_lock);
+ mutex_unlock(&ftrace_start_lock);
}
static void ftrace_startup_sysctl(void)
if (unlikely(ftrace_disabled))
return;
- mutex_lock(&ftraced_lock);
+ mutex_lock(&ftrace_start_lock);
/* Force update next time */
saved_ftrace_func = NULL;
- /* ftraced_suspend is true if we want ftrace running */
- if (ftraced_suspend)
+ /* ftrace_start is true if we want ftrace running */
+ if (ftrace_start)
command |= FTRACE_ENABLE_CALLS;
ftrace_run_update_code(command);
- mutex_unlock(&ftraced_lock);
+ mutex_unlock(&ftrace_start_lock);
}
static void ftrace_shutdown_sysctl(void)
if (unlikely(ftrace_disabled))
return;
- mutex_lock(&ftraced_lock);
- /* ftraced_suspend is true if ftrace is running */
- if (ftraced_suspend)
+ mutex_lock(&ftrace_start_lock);
+ /* ftrace_start is true if ftrace is running */
+ if (ftrace_start)
command |= FTRACE_DISABLE_CALLS;
ftrace_run_update_code(command);
- mutex_unlock(&ftraced_lock);
+ mutex_unlock(&ftrace_start_lock);
}
static cycle_t ftrace_update_time;
static unsigned long ftrace_update_cnt;
unsigned long ftrace_update_tot_cnt;
-static int __ftrace_update_code(void *ignore)
+static int ftrace_update_code(void)
{
- int i, save_ftrace_enabled;
+ struct dyn_ftrace *p, *t;
cycle_t start, stop;
- struct dyn_ftrace *p;
- struct hlist_node *t, *n;
- struct hlist_head *head, temp_list;
-
- /* Don't be recording funcs now */
- ftrace_record_suspend++;
- save_ftrace_enabled = ftrace_enabled;
- ftrace_enabled = 0;
start = ftrace_now(raw_smp_processor_id());
ftrace_update_cnt = 0;
- /* No locks needed, the machine is stopped! */
- for (i = 0; i < FTRACE_HASHSIZE; i++) {
- INIT_HLIST_HEAD(&temp_list);
- head = &ftrace_hash[i];
+ list_for_each_entry_safe(p, t, &ftrace_new_addrs, list) {
- /* all CPUS are stopped, we are safe to modify code */
- hlist_for_each_entry_safe(p, t, n, head, node) {
- /* Skip over failed records which have not been
- * freed. */
- if (p->flags & FTRACE_FL_FAILED)
- continue;
+ /* If something went wrong, bail without enabling anything */
+ if (unlikely(ftrace_disabled))
+ return -1;
- /* Unconverted records are always at the head of the
- * hash bucket. Once we encounter a converted record,
- * simply skip over to the next bucket. Saves ftraced
- * some processor cycles (ftrace does its bid for
- * global warming :-p ). */
- if (p->flags & (FTRACE_FL_CONVERTED))
- break;
+ list_del_init(&p->list);
- /* Ignore updates to this record's mcount site.
- * Reintroduce this record at the head of this
- * bucket to attempt to "convert" it again if
- * the kprobe on it is unregistered before the
- * next run. */
- if (get_kprobe((void *)p->ip)) {
- ftrace_del_hash(p);
- INIT_HLIST_NODE(&p->node);
- hlist_add_head(&p->node, &temp_list);
- freeze_record(p);
- continue;
- } else {
- unfreeze_record(p);
- }
-
- /* convert record (i.e, patch mcount-call with NOP) */
- if (ftrace_code_disable(p)) {
- p->flags |= FTRACE_FL_CONVERTED;
- ftrace_update_cnt++;
- } else {
- if ((system_state == SYSTEM_BOOTING) ||
- !core_kernel_text(p->ip)) {
- ftrace_del_hash(p);
- ftrace_free_rec(p);
- }
- }
- }
-
- hlist_for_each_entry_safe(p, t, n, &temp_list, node) {
- hlist_del(&p->node);
- INIT_HLIST_NODE(&p->node);
- hlist_add_head(&p->node, head);
- }
+ /* convert record (i.e, patch mcount-call with NOP) */
+ if (ftrace_code_disable(p)) {
+ p->flags |= FTRACE_FL_CONVERTED;
+ ftrace_update_cnt++;
+ } else
+ ftrace_free_rec(p);
}
stop = ftrace_now(raw_smp_processor_id());
ftrace_update_time = stop - start;
ftrace_update_tot_cnt += ftrace_update_cnt;
- ftraced_trigger = 0;
-
- ftrace_enabled = save_ftrace_enabled;
- ftrace_record_suspend--;
return 0;
}
-static int ftrace_update_code(void)
-{
- if (unlikely(ftrace_disabled) ||
- !ftrace_enabled || !ftraced_trigger)
- return 0;
-
- stop_machine(__ftrace_update_code, NULL, NULL);
-
- return 1;
-}
-
static int __init ftrace_dyn_table_alloc(unsigned long num_to_init)
{
struct ftrace_page *pg;
pg = ftrace_pages = ftrace_pages_start;
cnt = num_to_init / ENTRIES_PER_PAGE;
- pr_info("ftrace: allocating %ld hash entries in %d pages\n",
+ pr_info("ftrace: allocating %ld entries in %d pages\n",
num_to_init, cnt);
for (i = 0; i < cnt; i++) {
}
mutex_lock(&ftrace_sysctl_lock);
- mutex_lock(&ftraced_lock);
- if (iter->filtered && ftraced_suspend && ftrace_enabled)
+ mutex_lock(&ftrace_start_lock);
+ if (iter->filtered && ftrace_start && ftrace_enabled)
ftrace_run_update_code(FTRACE_ENABLE_CALLS);
- mutex_unlock(&ftraced_lock);
+ mutex_unlock(&ftrace_start_lock);
mutex_unlock(&ftrace_sysctl_lock);
kfree(iter);
return ftrace_regex_release(inode, file, 0);
}
-static ssize_t
-ftraced_read(struct file *filp, char __user *ubuf,
- size_t cnt, loff_t *ppos)
-{
- /* don't worry about races */
- char *buf = ftraced_stop ? "disabled\n" : "enabled\n";
- int r = strlen(buf);
-
- return simple_read_from_buffer(ubuf, cnt, ppos, buf, r);
-}
-
-static ssize_t
-ftraced_write(struct file *filp, const char __user *ubuf,
- size_t cnt, loff_t *ppos)
-{
- char buf[64];
- long val;
- int ret;
-
- if (cnt >= sizeof(buf))
- return -EINVAL;
-
- if (copy_from_user(&buf, ubuf, cnt))
- return -EFAULT;
-
- if (strncmp(buf, "enable", 6) == 0)
- val = 1;
- else if (strncmp(buf, "disable", 7) == 0)
- val = 0;
- else {
- buf[cnt] = 0;
-
- ret = strict_strtoul(buf, 10, &val);
- if (ret < 0)
- return ret;
-
- val = !!val;
- }
-
- if (val)
- ftrace_enable_daemon();
- else
- ftrace_disable_daemon();
-
- filp->f_pos += cnt;
-
- return cnt;
-}
-
static struct file_operations ftrace_avail_fops = {
.open = ftrace_avail_open,
.read = seq_read,
.release = ftrace_notrace_release,
};
-static struct file_operations ftraced_fops = {
- .open = tracing_open_generic,
- .read = ftraced_read,
- .write = ftraced_write,
-};
-
-/**
- * ftrace_force_update - force an update to all recording ftrace functions
- */
-int ftrace_force_update(void)
-{
- int ret = 0;
-
- if (unlikely(ftrace_disabled))
- return -ENODEV;
-
- mutex_lock(&ftrace_sysctl_lock);
- mutex_lock(&ftraced_lock);
-
- /*
- * If ftraced_trigger is not set, then there is nothing
- * to update.
- */
- if (ftraced_trigger && !ftrace_update_code())
- ret = -EBUSY;
-
- mutex_unlock(&ftraced_lock);
- mutex_unlock(&ftrace_sysctl_lock);
-
- return ret;
-}
-
-static void ftrace_force_shutdown(void)
-{
- struct task_struct *task;
- int command = FTRACE_DISABLE_CALLS | FTRACE_UPDATE_TRACE_FUNC;
-
- mutex_lock(&ftraced_lock);
- task = ftraced_task;
- ftraced_task = NULL;
- ftraced_suspend = -1;
- ftrace_run_update_code(command);
- mutex_unlock(&ftraced_lock);
-
- if (task)
- kthread_stop(task);
-}
-
static __init int ftrace_init_debugfs(void)
{
struct dentry *d_tracer;
pr_warning("Could not create debugfs "
"'set_ftrace_notrace' entry\n");
- entry = debugfs_create_file("ftraced_enabled", 0644, d_tracer,
- NULL, &ftraced_fops);
- if (!entry)
- pr_warning("Could not create debugfs "
- "'ftraced_enabled' entry\n");
return 0;
}
fs_initcall(ftrace_init_debugfs);
-#ifdef CONFIG_FTRACE_MCOUNT_RECORD
static int ftrace_convert_nops(unsigned long *start,
unsigned long *end)
{
unsigned long addr;
unsigned long flags;
+ mutex_lock(&ftrace_start_lock);
p = start;
while (p < end) {
addr = ftrace_call_adjust(*p++);
- /* should not be called from interrupt context */
- spin_lock(&ftrace_lock);
ftrace_record_ip(addr);
- spin_unlock(&ftrace_lock);
- ftrace_shutdown_replenish();
}
- /* p is ignored */
+ /* disable interrupts to prevent kstop machine */
local_irq_save(flags);
- __ftrace_update_code(p);
+ ftrace_update_code();
local_irq_restore(flags);
+ mutex_unlock(&ftrace_start_lock);
return 0;
}
failed:
ftrace_disabled = 1;
}
-#else /* CONFIG_FTRACE_MCOUNT_RECORD */
-static int ftraced(void *ignore)
-{
- unsigned long usecs;
-
- while (!kthread_should_stop()) {
-
- set_current_state(TASK_INTERRUPTIBLE);
-
- /* check once a second */
- schedule_timeout(HZ);
- if (unlikely(ftrace_disabled))
- continue;
-
- mutex_lock(&ftrace_sysctl_lock);
- mutex_lock(&ftraced_lock);
- if (!ftraced_suspend && !ftraced_stop &&
- ftrace_update_code()) {
- usecs = nsecs_to_usecs(ftrace_update_time);
- if (ftrace_update_tot_cnt > 100000) {
- ftrace_update_tot_cnt = 0;
- pr_info("hm, dftrace overflow: %lu change%s"
- " (%lu total) in %lu usec%s\n",
- ftrace_update_cnt,
- ftrace_update_cnt != 1 ? "s" : "",
- ftrace_update_tot_cnt,
- usecs, usecs != 1 ? "s" : "");
- ftrace_disabled = 1;
- WARN_ON_ONCE(1);
- }
- }
- mutex_unlock(&ftraced_lock);
- mutex_unlock(&ftrace_sysctl_lock);
-
- ftrace_shutdown_replenish();
- }
- __set_current_state(TASK_RUNNING);
- return 0;
-}
+#else
-static int __init ftrace_dynamic_init(void)
+static int __init ftrace_nodyn_init(void)
{
- struct task_struct *p;
- unsigned long addr;
- int ret;
-
- addr = (unsigned long)ftrace_record_ip;
-
- stop_machine(ftrace_dyn_arch_init, &addr, NULL);
-
- /* ftrace_dyn_arch_init places the return code in addr */
- if (addr) {
- ret = (int)addr;
- goto failed;
- }
-
- ret = ftrace_dyn_table_alloc(NR_TO_INIT);
- if (ret)
- goto failed;
-
- p = kthread_run(ftraced, NULL, "ftraced");
- if (IS_ERR(p)) {
- ret = -1;
- goto failed;
- }
-
- last_ftrace_enabled = ftrace_enabled = 1;
- ftraced_task = p;
-
+ ftrace_enabled = 1;
return 0;
-
- failed:
- ftrace_disabled = 1;
- return ret;
}
+device_initcall(ftrace_nodyn_init);
-core_initcall(ftrace_dynamic_init);
-#endif /* CONFIG_FTRACE_MCOUNT_RECORD */
-
-#else
# define ftrace_startup() do { } while (0)
# define ftrace_shutdown() do { } while (0)
# define ftrace_startup_sysctl() do { } while (0)
# define ftrace_shutdown_sysctl() do { } while (0)
-# define ftrace_force_shutdown() do { } while (0)
#endif /* CONFIG_DYNAMIC_FTRACE */
/**
- * ftrace_kill_atomic - kill ftrace from critical sections
+ * ftrace_kill - kill ftrace
*
* This function should be used by panic code. It stops ftrace
* but in a not so nice way. If you need to simply kill ftrace
* from a non-atomic section, use ftrace_kill.
*/
-void ftrace_kill_atomic(void)
-{
- ftrace_disabled = 1;
- ftrace_enabled = 0;
-#ifdef CONFIG_DYNAMIC_FTRACE
- ftraced_suspend = -1;
-#endif
- clear_ftrace_function();
-}
-
-/**
- * ftrace_kill - totally shutdown ftrace
- *
- * This is a safety measure. If something was detected that seems
- * wrong, calling this function will keep ftrace from doing
- * any more modifications, and updates.
- * used when something went wrong.
- */
void ftrace_kill(void)
{
- mutex_lock(&ftrace_sysctl_lock);
ftrace_disabled = 1;
ftrace_enabled = 0;
-
clear_ftrace_function();
- mutex_unlock(&ftrace_sysctl_lock);
-
- /* Try to totally disable ftrace */
- ftrace_force_shutdown();
}
/**
mutex_unlock(&ftrace_sysctl_lock);
return ret;
}
+
static inline void free_buffer_page(struct buffer_page *bpage)
{
if (bpage->page)
- __free_page(bpage->page);
+ free_page((unsigned long)bpage->page);
kfree(bpage);
}
if (unlikely(*delta > (1ULL << 59) && !once++)) {
printk(KERN_WARNING "Delta way too big! %llu"
" ts=%llu write stamp = %llu\n",
- *delta, *ts, cpu_buffer->write_stamp);
+ (unsigned long long)*delta,
+ (unsigned long long)*ts,
+ (unsigned long long)cpu_buffer->write_stamp);
WARN_ON(1);
}
#include <linux/stacktrace.h>
#include <linux/ring_buffer.h>
+#include <linux/irqflags.h>
#include "trace.h"
entry->preempt_count = pc & 0xff;
entry->pid = (tsk) ? tsk->pid : 0;
entry->flags =
+#ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT
(irqs_disabled_flags(flags) ? TRACE_FLAG_IRQS_OFF : 0) |
+#else
+ TRACE_FLAG_IRQS_NOSUPPORT |
+#endif
((pc & HARDIRQ_MASK) ? TRACE_FLAG_HARDIRQ : 0) |
((pc & SOFTIRQ_MASK) ? TRACE_FLAG_SOFTIRQ : 0) |
(need_resched() ? TRACE_FLAG_NEED_RESCHED : 0);
preempt_enable_notrace();
}
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
static void
function_trace_call(unsigned long ip, unsigned long parent_ip)
{
if (unlikely(!ftrace_function_enabled))
return;
- if (skip_trace(ip))
- return;
-
pc = preempt_count();
resched = need_resched();
preempt_disable_notrace();
trace_seq_printf(s, "%8.8s-%-5d ", comm, entry->pid);
trace_seq_printf(s, "%3d", cpu);
trace_seq_printf(s, "%c%c",
- (entry->flags & TRACE_FLAG_IRQS_OFF) ? 'd' : '.',
+ (entry->flags & TRACE_FLAG_IRQS_OFF) ? 'd' :
+ (entry->flags & TRACE_FLAG_IRQS_NOSUPPORT) ? 'X' : '.',
((entry->flags & TRACE_FLAG_NEED_RESCHED) ? 'N' : '.'));
hardirq = entry->flags & TRACE_FLAG_HARDIRQ;
int i;
size_t ret;
+ ret = cnt;
+
if (cnt > max_tracer_type_len)
cnt = max_tracer_type_len;
- ret = cnt;
if (copy_from_user(&buf, ubuf, cnt))
return -EFAULT;
out:
mutex_unlock(&trace_types_lock);
- if (ret == cnt)
- filp->f_pos += cnt;
+ if (ret > 0)
+ filp->f_pos += ret;
return ret;
}
dump_ran = 1;
/* No turning back! */
- ftrace_kill_atomic();
+ ftrace_kill();
for_each_tracing_cpu(cpu) {
atomic_inc(&global_trace.data[cpu]->disabled);
/*
* trace_flag_type is an enumeration that holds different
* states when a trace occurs. These are:
- * IRQS_OFF - interrupts were disabled
- * NEED_RESCED - reschedule is requested
- * HARDIRQ - inside an interrupt handler
- * SOFTIRQ - inside a softirq handler
- * CONT - multiple entries hold the trace item
+ * IRQS_OFF - interrupts were disabled
+ * IRQS_NOSUPPORT - arch does not support irqs_disabled_flags
+ * NEED_RESCED - reschedule is requested
+ * HARDIRQ - inside an interrupt handler
+ * SOFTIRQ - inside a softirq handler
+ * CONT - multiple entries hold the trace item
*/
enum trace_flag_type {
TRACE_FLAG_IRQS_OFF = 0x01,
- TRACE_FLAG_NEED_RESCHED = 0x02,
- TRACE_FLAG_HARDIRQ = 0x04,
- TRACE_FLAG_SOFTIRQ = 0x08,
- TRACE_FLAG_CONT = 0x10,
+ TRACE_FLAG_IRQS_NOSUPPORT = 0x02,
+ TRACE_FLAG_NEED_RESCHED = 0x04,
+ TRACE_FLAG_HARDIRQ = 0x08,
+ TRACE_FLAG_SOFTIRQ = 0x10,
+ TRACE_FLAG_CONT = 0x20,
};
#define TRACE_BUF_SIZE 1024
extern cycle_t ftrace_now(int cpu);
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
void tracing_start_function_trace(void);
void tracing_stop_function_trace(void);
#else
static struct tracer function_trace __read_mostly =
{
- .name = "ftrace",
+ .name = "function",
.init = function_trace_init,
.reset = function_trace_reset,
.ctrl_update = function_trace_ctrl_update,
*/
static __cacheline_aligned_in_smp unsigned long max_sequence;
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
/*
* irqsoff uses its own tracer function to keep the overhead down:
*/
{
.func = irqsoff_tracer_call,
};
-#endif /* CONFIG_FTRACE */
+#endif /* CONFIG_FUNCTION_TRACER */
/*
* Should this new latency be reported/recorded?
static void __wakeup_reset(struct trace_array *tr);
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
/*
* irqsoff uses its own tracer function to keep the overhead down:
*/
{
.func = wakeup_tracer_call,
};
-#endif /* CONFIG_FTRACE */
+#endif /* CONFIG_FUNCTION_TRACER */
/*
* Should this new latency be reported/recorded?
return ret;
}
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
#ifdef CONFIG_DYNAMIC_FTRACE
/* passed in by parameter to fool gcc from optimizing */
func();
- /* update the records */
- ret = ftrace_force_update();
- if (ret) {
- printk(KERN_CONT ".. ftraced failed .. ");
- return ret;
- }
-
/*
* Some archs *cough*PowerPC*cough* add charachters to the
* start of the function names. We simply put a '*' to
/* make sure msleep has been recorded */
msleep(1);
- /* force the recorded functions to be traced */
- ret = ftrace_force_update();
- if (ret) {
- printk(KERN_CONT ".. ftraced failed .. ");
- return ret;
- }
-
/* start the tracing */
ftrace_enabled = 1;
tracer_enabled = 1;
return ret;
}
-#endif /* CONFIG_FTRACE */
+#endif /* CONFIG_FUNCTION_TRACER */
#ifdef CONFIG_IRQSOFF_TRACER
int
if (this_size <= max_stack_size)
return;
+ /* we do not handle interrupt stacks yet */
+ if (!object_is_on_stack(&this_size))
+ return;
+
raw_local_irq_save(flags);
__raw_spin_lock(&max_stack_lock);
old = entry->funcs;
+ if (!old)
+ return NULL;
+
debug_print_probes(entry);
/* (N -> M), (N > 1, M >= 0) probes */
for (nr_probes = 0; old[nr_probes]; nr_probes++) {
if (entry->rcu_pending)
rcu_barrier_sched();
old = tracepoint_entry_remove_probe(entry, probe);
+ if (!old) {
+ printk(KERN_WARNING "Warning: Trying to unregister a probe"
+ "that doesn't exist\n");
+ goto end;
+ }
mutex_unlock(&tracepoints_mutex);
tracepoint_update_probes(); /* may update entry */
mutex_lock(&tracepoints_mutex);
# Makefile for some libs needed in the kernel.
#
-ifdef CONFIG_FTRACE
+ifdef CONFIG_FUNCTION_TRACER
ORIG_CFLAGS := $(KBUILD_CFLAGS)
KBUILD_CFLAGS = $(subst -pg,,$(ORIG_CFLAGS))
endif
iter->logical_modname,
iter->flag_names, iter->hash, iter->hash2);
}
+ if (dynamic_enabled == DYNAMIC_ENABLED_ALL)
+ set_all(true);
return 0;
}
module_init(dynamic_printk_init);
{
if (str)
return -ENOENT;
- set_all(true);
+ dynamic_enabled = DYNAMIC_ENABLED_ALL;
return 0;
}
/* Use early_param(), so we can get debug output as early as possible */
printk("hwdev DMA mask = 0x%016Lx, dev_addr = 0x%016Lx\n",
(unsigned long long)*hwdev->dma_mask,
(unsigned long long)dev_addr);
- panic("swiotlb_alloc_coherent: allocated memory is out of "
- "range for device");
+
+ /* DMA_TO_DEVICE to avoid memcpy in unmap_single */
+ unmap_single(hwdev, ret, size, DMA_TO_DEVICE);
+ return NULL;
}
*dma_handle = dev_addr;
return ret;
{
const struct address_space_operations *aops = mapping->a_ops;
- if (aops->write_begin) {
- return aops->write_begin(file, mapping, pos, len, flags,
+ return aops->write_begin(file, mapping, pos, len, flags,
pagep, fsdata);
- } else {
- int ret;
- pgoff_t index = pos >> PAGE_CACHE_SHIFT;
- unsigned offset = pos & (PAGE_CACHE_SIZE - 1);
- struct inode *inode = mapping->host;
- struct page *page;
-again:
- page = __grab_cache_page(mapping, index);
- *pagep = page;
- if (!page)
- return -ENOMEM;
-
- if (flags & AOP_FLAG_UNINTERRUPTIBLE && !PageUptodate(page)) {
- /*
- * There is no way to resolve a short write situation
- * for a !Uptodate page (except by double copying in
- * the caller done by generic_perform_write_2copy).
- *
- * Instead, we have to bring it uptodate here.
- */
- ret = aops->readpage(file, page);
- page_cache_release(page);
- if (ret) {
- if (ret == AOP_TRUNCATED_PAGE)
- goto again;
- return ret;
- }
- goto again;
- }
-
- ret = aops->prepare_write(file, page, offset, offset+len);
- if (ret) {
- unlock_page(page);
- page_cache_release(page);
- if (pos + len > inode->i_size)
- vmtruncate(inode, inode->i_size);
- }
- return ret;
- }
}
EXPORT_SYMBOL(pagecache_write_begin);
struct page *page, void *fsdata)
{
const struct address_space_operations *aops = mapping->a_ops;
- int ret;
-
- if (aops->write_end) {
- mark_page_accessed(page);
- ret = aops->write_end(file, mapping, pos, len, copied,
- page, fsdata);
- } else {
- unsigned offset = pos & (PAGE_CACHE_SIZE - 1);
- struct inode *inode = mapping->host;
-
- flush_dcache_page(page);
- ret = aops->commit_write(file, page, offset, offset+len);
- unlock_page(page);
- mark_page_accessed(page);
- page_cache_release(page);
-
- if (ret < 0) {
- if (pos + len > inode->i_size)
- vmtruncate(inode, inode->i_size);
- } else if (ret > 0)
- ret = min_t(size_t, copied, ret);
- else
- ret = copied;
- }
- return ret;
+ mark_page_accessed(page);
+ return aops->write_end(file, mapping, pos, len, copied, page, fsdata);
}
EXPORT_SYMBOL(pagecache_write_end);
}
EXPORT_SYMBOL(__grab_cache_page);
-static ssize_t generic_perform_write_2copy(struct file *file,
- struct iov_iter *i, loff_t pos)
-{
- struct address_space *mapping = file->f_mapping;
- const struct address_space_operations *a_ops = mapping->a_ops;
- struct inode *inode = mapping->host;
- long status = 0;
- ssize_t written = 0;
-
- do {
- struct page *src_page;
- struct page *page;
- pgoff_t index; /* Pagecache index for current page */
- unsigned long offset; /* Offset into pagecache page */
- unsigned long bytes; /* Bytes to write to page */
- size_t copied; /* Bytes copied from user */
-
- offset = (pos & (PAGE_CACHE_SIZE - 1));
- index = pos >> PAGE_CACHE_SHIFT;
- bytes = min_t(unsigned long, PAGE_CACHE_SIZE - offset,
- iov_iter_count(i));
-
- /*
- * a non-NULL src_page indicates that we're doing the
- * copy via get_user_pages and kmap.
- */
- src_page = NULL;
-
- /*
- * Bring in the user page that we will copy from _first_.
- * Otherwise there's a nasty deadlock on copying from the
- * same page as we're writing to, without it being marked
- * up-to-date.
- *
- * Not only is this an optimisation, but it is also required
- * to check that the address is actually valid, when atomic
- * usercopies are used, below.
- */
- if (unlikely(iov_iter_fault_in_readable(i, bytes))) {
- status = -EFAULT;
- break;
- }
-
- page = __grab_cache_page(mapping, index);
- if (!page) {
- status = -ENOMEM;
- break;
- }
-
- /*
- * non-uptodate pages cannot cope with short copies, and we
- * cannot take a pagefault with the destination page locked.
- * So pin the source page to copy it.
- */
- if (!PageUptodate(page) && !segment_eq(get_fs(), KERNEL_DS)) {
- unlock_page(page);
-
- src_page = alloc_page(GFP_KERNEL);
- if (!src_page) {
- page_cache_release(page);
- status = -ENOMEM;
- break;
- }
-
- /*
- * Cannot get_user_pages with a page locked for the
- * same reason as we can't take a page fault with a
- * page locked (as explained below).
- */
- copied = iov_iter_copy_from_user(src_page, i,
- offset, bytes);
- if (unlikely(copied == 0)) {
- status = -EFAULT;
- page_cache_release(page);
- page_cache_release(src_page);
- break;
- }
- bytes = copied;
-
- lock_page(page);
- /*
- * Can't handle the page going uptodate here, because
- * that means we would use non-atomic usercopies, which
- * zero out the tail of the page, which can cause
- * zeroes to become transiently visible. We could just
- * use a non-zeroing copy, but the APIs aren't too
- * consistent.
- */
- if (unlikely(!page->mapping || PageUptodate(page))) {
- unlock_page(page);
- page_cache_release(page);
- page_cache_release(src_page);
- continue;
- }
- }
-
- status = a_ops->prepare_write(file, page, offset, offset+bytes);
- if (unlikely(status))
- goto fs_write_aop_error;
-
- if (!src_page) {
- /*
- * Must not enter the pagefault handler here, because
- * we hold the page lock, so we might recursively
- * deadlock on the same lock, or get an ABBA deadlock
- * against a different lock, or against the mmap_sem
- * (which nests outside the page lock). So increment
- * preempt count, and use _atomic usercopies.
- *
- * The page is uptodate so we are OK to encounter a
- * short copy: if unmodified parts of the page are
- * marked dirty and written out to disk, it doesn't
- * really matter.
- */
- pagefault_disable();
- copied = iov_iter_copy_from_user_atomic(page, i,
- offset, bytes);
- pagefault_enable();
- } else {
- void *src, *dst;
- src = kmap_atomic(src_page, KM_USER0);
- dst = kmap_atomic(page, KM_USER1);
- memcpy(dst + offset, src + offset, bytes);
- kunmap_atomic(dst, KM_USER1);
- kunmap_atomic(src, KM_USER0);
- copied = bytes;
- }
- flush_dcache_page(page);
-
- status = a_ops->commit_write(file, page, offset, offset+bytes);
- if (unlikely(status < 0))
- goto fs_write_aop_error;
- if (unlikely(status > 0)) /* filesystem did partial write */
- copied = min_t(size_t, copied, status);
-
- unlock_page(page);
- mark_page_accessed(page);
- page_cache_release(page);
- if (src_page)
- page_cache_release(src_page);
-
- iov_iter_advance(i, copied);
- pos += copied;
- written += copied;
-
- balance_dirty_pages_ratelimited(mapping);
- cond_resched();
- continue;
-
-fs_write_aop_error:
- unlock_page(page);
- page_cache_release(page);
- if (src_page)
- page_cache_release(src_page);
-
- /*
- * prepare_write() may have instantiated a few blocks
- * outside i_size. Trim these off again. Don't need
- * i_size_read because we hold i_mutex.
- */
- if (pos + bytes > inode->i_size)
- vmtruncate(inode, inode->i_size);
- break;
- } while (iov_iter_count(i));
-
- return written ? written : status;
-}
-
static ssize_t generic_perform_write(struct file *file,
struct iov_iter *i, loff_t pos)
{
struct iov_iter i;
iov_iter_init(&i, iov, nr_segs, count, written);
- if (a_ops->write_begin)
- status = generic_perform_write(file, &i, pos);
- else
- status = generic_perform_write_2copy(file, &i, pos);
+ status = generic_perform_write(file, &i, pos);
if (likely(status >= 0)) {
written += status;
/* Don't let a single process grow too big:
leave 3% of the size of this process for other processes */
- allowed -= mm->total_vm / 32;
+ if (mm)
+ allowed -= mm->total_vm / 32;
/*
* cast `allowed' as a signed long because vm_committed_space
/* Don't let a single process grow too big:
leave 3% of the size of this process for other processes */
- allowed -= current->mm->total_vm / 32;
+ if (mm)
+ allowed -= mm->total_vm / 32;
/*
* cast `allowed' as a signed long because vm_committed_space
*/
static inline int shmem_acct_size(unsigned long flags, loff_t size)
{
- return (flags & VM_ACCOUNT)?
- security_vm_enough_memory(VM_ACCT(size)): 0;
+ return (flags & VM_ACCOUNT) ?
+ security_vm_enough_memory_kern(VM_ACCT(size)) : 0;
}
static inline void shmem_unacct_size(unsigned long flags, loff_t size)
*/
static inline int shmem_acct_block(unsigned long flags)
{
- return (flags & VM_ACCOUNT)?
- 0: security_vm_enough_memory(VM_ACCT(PAGE_CACHE_SIZE));
+ return (flags & VM_ACCOUNT) ?
+ 0 : security_vm_enough_memory_kern(VM_ACCT(PAGE_CACHE_SIZE));
}
static inline void shmem_unacct_blocks(unsigned long flags, long pages)
* @count: number of pages
* @node: prefer to allocate data structures on this node
* @prot: memory protection to use. PAGE_KERNEL for regular RAM
- * @returns: a pointer to the address that has been mapped, or NULL on failure
+ *
+ * Returns: a pointer to the address that has been mapped, or %NULL on failure
*/
void *vm_map_ram(struct page **pages, unsigned int count, int node, pgprot_t prot)
{
/* make sure that we don't pick a non-existing transmit queue */
ntxq = pkt_dev->odev->real_num_tx_queues;
- if (ntxq <= num_online_cpus() && (pkt_dev->flags & F_QUEUE_MAP_CPU)) {
+ if (ntxq > num_online_cpus() && (pkt_dev->flags & F_QUEUE_MAP_CPU)) {
printk(KERN_WARNING "pktgen: WARNING: QUEUE_MAP_CPU "
- "disabled because CPU count (%d) exceeds number ",
- num_online_cpus());
- printk(KERN_WARNING "pktgen: WARNING: of tx queues "
- "(%d) on %s \n", ntxq, pkt_dev->odev->name);
+ "disabled because CPU count (%d) exceeds number "
+ "of tx queues (%d) on %s\n", num_online_cpus(), ntxq,
+ pkt_dev->odev->name);
pkt_dev->flags &= ~F_QUEUE_MAP_CPU;
}
if (ntxq <= pkt_dev->queue_map_min) {
printk(KERN_WARNING "pktgen: WARNING: Requested "
- "queue_map_min (%d) exceeds number of tx\n",
- pkt_dev->queue_map_min);
- printk(KERN_WARNING "pktgen: WARNING: queues (%d) on "
- "%s, resetting\n", ntxq, pkt_dev->odev->name);
+ "queue_map_min (zero-based) (%d) exceeds valid range "
+ "[0 - %d] for (%d) queues on %s, resetting\n",
+ pkt_dev->queue_map_min, (ntxq ?: 1)- 1, ntxq,
+ pkt_dev->odev->name);
pkt_dev->queue_map_min = ntxq - 1;
}
- if (ntxq <= pkt_dev->queue_map_max) {
+ if (pkt_dev->queue_map_max >= ntxq) {
printk(KERN_WARNING "pktgen: WARNING: Requested "
- "queue_map_max (%d) exceeds number of tx\n",
- pkt_dev->queue_map_max);
- printk(KERN_WARNING "pktgen: WARNING: queues (%d) on "
- "%s, resetting\n", ntxq, pkt_dev->odev->name);
+ "queue_map_max (zero-based) (%d) exceeds valid range "
+ "[0 - %d] for (%d) queues on %s, resetting\n",
+ pkt_dev->queue_map_max, (ntxq ?: 1)- 1, ntxq,
+ pkt_dev->odev->name);
pkt_dev->queue_map_max = ntxq - 1;
}
prob / 10, prob % 10,
mr->last_success,
mr->last_attempts,
- mr->succ_hist,
- mr->att_hist);
+ (unsigned long long)mr->succ_hist,
+ (unsigned long long)mr->att_hist);
}
p += sprintf(p, "\nTotal packet count:: ideal %d "
"lookaround %d\n\n",
return 0;
}
-static int
+static ssize_t
minstrel_stats_read(struct file *file, char __user *buf, size_t len, loff_t *o)
{
struct minstrel_stats_info *ms;
static int __init rfkill_handler_init(void)
{
+ unsigned long last_run = jiffies - msecs_to_jiffies(500);
+ rfkill_wlan.last = last_run;
+ rfkill_bt.last = last_run;
+ rfkill_uwb.last = last_run;
+ rfkill_wimax.last = last_run;
return input_register_handler(&rfkill_handler);
}
rpcauth_prune_expired(struct list_head *free, int nr_to_scan)
{
spinlock_t *cache_lock;
- struct rpc_cred *cred;
+ struct rpc_cred *cred, *next;
unsigned long expired = jiffies - RPC_AUTH_EXPIRY_MORATORIUM;
- while (!list_empty(&cred_unused)) {
- cred = list_entry(cred_unused.next, struct rpc_cred, cr_lru);
+ list_for_each_entry_safe(cred, next, &cred_unused, cr_lru) {
+
+ /* Enforce a 60 second garbage collection moratorium */
+ if (time_in_range(cred->cr_expire, expired, jiffies) &&
+ test_bit(RPCAUTH_CRED_HASHED, &cred->cr_flags) != 0)
+ continue;
+
list_del_init(&cred->cr_lru);
number_cred_unused--;
if (atomic_read(&cred->cr_count) != 0)
continue;
- /* Enforce a 5 second garbage collection moratorium */
- if (time_in_range(cred->cr_expire, expired, jiffies) &&
- test_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags) != 0)
- continue;
+
cache_lock = &cred->cr_auth->au_credcache->lock;
spin_lock(cache_lock);
if (atomic_read(&cred->cr_count) == 0) {
}
if (test_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags) == 0)
rpcauth_unhash_cred(cred);
- else if (test_bit(RPCAUTH_CRED_HASHED, &cred->cr_flags) != 0) {
+ if (test_bit(RPCAUTH_CRED_HASHED, &cred->cr_flags) != 0) {
cred->cr_expire = jiffies;
list_add_tail(&cred->cr_lru, &cred_unused);
number_cred_unused++;
void (*old_data_ready)(struct sock *, int);
void (*old_state_change)(struct sock *);
void (*old_write_space)(struct sock *);
+ void (*old_error_report)(struct sock *);
};
/*
case -EAGAIN:
xs_nospace(task);
break;
- case -ECONNREFUSED:
case -ECONNRESET:
+ xs_tcp_shutdown(xprt);
+ case -ECONNREFUSED:
case -ENOTCONN:
case -EPIPE:
status = -ENOTCONN;
xprt_release_xprt(xprt, task);
}
+static void xs_save_old_callbacks(struct sock_xprt *transport, struct sock *sk)
+{
+ transport->old_data_ready = sk->sk_data_ready;
+ transport->old_state_change = sk->sk_state_change;
+ transport->old_write_space = sk->sk_write_space;
+ transport->old_error_report = sk->sk_error_report;
+}
+
+static void xs_restore_old_callbacks(struct sock_xprt *transport, struct sock *sk)
+{
+ sk->sk_data_ready = transport->old_data_ready;
+ sk->sk_state_change = transport->old_state_change;
+ sk->sk_write_space = transport->old_write_space;
+ sk->sk_error_report = transport->old_error_report;
+}
+
/**
* xs_close - close a socket
* @xprt: transport
transport->sock = NULL;
sk->sk_user_data = NULL;
- sk->sk_data_ready = transport->old_data_ready;
- sk->sk_state_change = transport->old_state_change;
- sk->sk_write_space = transport->old_write_space;
+
+ xs_restore_old_callbacks(transport, sk);
write_unlock_bh(&sk->sk_callback_lock);
sk->sk_no_check = 0;
read_unlock(&sk->sk_callback_lock);
}
+/**
+ * xs_tcp_error_report - callback mainly for catching RST events
+ * @sk: socket
+ */
+static void xs_tcp_error_report(struct sock *sk)
+{
+ struct rpc_xprt *xprt;
+
+ read_lock(&sk->sk_callback_lock);
+ if (sk->sk_err != ECONNRESET || sk->sk_state != TCP_ESTABLISHED)
+ goto out;
+ if (!(xprt = xprt_from_sock(sk)))
+ goto out;
+ dprintk("RPC: %s client %p...\n"
+ "RPC: error %d\n",
+ __func__, xprt, sk->sk_err);
+
+ xprt_force_disconnect(xprt);
+out:
+ read_unlock(&sk->sk_callback_lock);
+}
+
/**
* xs_udp_write_space - callback invoked when socket buffer space
* becomes available
write_lock_bh(&sk->sk_callback_lock);
+ xs_save_old_callbacks(transport, sk);
+
sk->sk_user_data = xprt;
- transport->old_data_ready = sk->sk_data_ready;
- transport->old_state_change = sk->sk_state_change;
- transport->old_write_space = sk->sk_write_space;
sk->sk_data_ready = xs_udp_data_ready;
sk->sk_write_space = xs_udp_write_space;
sk->sk_no_check = UDP_CSUM_NORCV;
write_lock_bh(&sk->sk_callback_lock);
+ xs_save_old_callbacks(transport, sk);
+
sk->sk_user_data = xprt;
- transport->old_data_ready = sk->sk_data_ready;
- transport->old_state_change = sk->sk_state_change;
- transport->old_write_space = sk->sk_write_space;
sk->sk_data_ready = xs_tcp_data_ready;
sk->sk_state_change = xs_tcp_state_change;
sk->sk_write_space = xs_tcp_write_space;
+ sk->sk_error_report = xs_tcp_error_report;
sk->sk_allocation = GFP_ATOMIC;
/* socket options */
fi;
endif
+ifdef CONFIG_64BIT
+arch_bits = 64
+else
+arch_bits = 32
+endif
+
ifdef CONFIG_FTRACE_MCOUNT_RECORD
cmd_record_mcount = perl $(srctree)/scripts/recordmcount.pl \
- "$(ARCH)" "$(OBJDUMP)" "$(OBJCOPY)" "$(CC)" "$(LD)" "$(NM)" "$(RM)" \
- "$(MV)" "$(@)";
+ "$(ARCH)" "$(arch_bits)" "$(OBJDUMP)" "$(OBJCOPY)" "$(CC)" "$(LD)" \
+ "$(NM)" "$(RM)" "$(MV)" "$(@)";
endif
define rule_cc_o_c
$(if $(CONFIG_MODULE_SRCVERSION_ALL),-a,) \
$(if $(KBUILD_EXTMOD),-i,-o) $(kernelsymfile) \
$(if $(KBUILD_EXTMOD),-I $(modulesymfile)) \
- $(if $(KBUILD_EXTRA_SYMBOLS), $(patsubst %, -e %,$(EXTRA_SYMBOLS))) \
+ $(if $(KBUILD_EXTRA_SYMBOLS), $(patsubst %, -e %,$(KBUILD_EXTRA_SYMBOLS))) \
$(if $(KBUILD_EXTMOD),-o $(modulesymfile)) \
$(if $(CONFIG_DEBUG_SECTION_MISMATCH),,-S) \
$(if $(CONFIG_MARKERS),-K $(kernelmarkersfile)) \
# dmesg | perl scripts/bootgraph.pl > output.svg
#
-my %start, %end;
+use strict;
+
+my %start;
+my %end;
my $done = 0;
my $maxtime = 0;
my $firsttime = 100;
my $stylecounter = 0;
my %rows;
my $rowscount = 1;
-while (($key,$value) = each %start) {
+my @initcalls = sort { $start{$a} <=> $start{$b} } keys(%start);
+my $key;
+foreach $key (@initcalls) {
my $duration = $end{$key} - $start{$key};
if ($duration >= $threshold) {
- my $s, $s2, $e, $y;
- $pid = $pids{$key};
+ my ($s, $s2, $e, $w, $y, $y2, $style);
+ my $pid = $pids{$key};
if (!defined($rows{$pid})) {
$rows{$pid} = $rowscount;
$rowscount = $rowscount + 1;
}
- $s = ($value - $firsttime) * $mult;
+ $s = ($start{$key} - $firsttime) * $mult;
$s2 = $s + 6;
$e = ($end{$key} - $firsttime) * $mult;
$w = $e - $s;
my $time = $firsttime;
my $step = ($maxtime - $firsttime) / 15;
while ($time < $maxtime) {
- my $s2 = ($time - $firsttime) * $mult;
+ my $s3 = ($time - $firsttime) * $mult;
my $tm = int($time * 100) / 100.0;
- print "<text transform=\"translate($s2,89) rotate(90)\">$tm</text>\n";
+ print "<text transform=\"translate($s3,89) rotate(90)\">$tm</text>\n";
$time = $time + $step;
}
}
syscall_list() {
-sed -n -e '/^\#define/ { s/[^_]*__NR_\([^[:space:]]*\).*/\
+sed -n -e '/^\#define/ s/[^_]*__NR_\([^[:space:]]*\).*/\
\#if !defined \(__NR_\1\) \&\& !defined \(__IGNORE_\1\)\
\#warning syscall \1 not implemented\
-\#endif/p }' $1
+\#endif/p' $1
}
(ignore_list && syscall_list ${srctree}/arch/x86/include/asm/unistd_32.h) | \
-#!/usr/bin/perl
+#!/usr/bin/perl -w
#
# headers_check.pl execute a number of trivial consistency checks
#
# 2) TODO: check for leaked CONFIG_ symbols
use strict;
-use warnings;
my ($dir, $arch, @files) = @ARGV;
my $filename;
foreach my $file (@files) {
+ local *FH;
$filename = $file;
- open(my $fh, '<', "$filename") or die "$filename: $!\n";
+ open(FH, "<$filename") or die "$filename: $!\n";
$lineno = 0;
- while ($line = <$fh>) {
+ while ($line = <FH>) {
$lineno++;
check_include();
}
- close $fh;
+ close FH;
}
exit $ret;
-#!/usr/bin/perl
+#!/usr/bin/perl -w
#
# headers_install prepare the listed header files for use in
# user space and copy the files to their destination.
# 3) Drop all sections defined out by __KERNEL__ (using unifdef)
use strict;
-use warnings;
my ($readdir, $installdir, $arch, @files) = @ARGV;
my $unifdef = "scripts/unifdef -U__KERNEL__";
foreach my $file (@files) {
+ local *INFILE;
+ local *OUTFILE;
my $tmpfile = "$installdir/$file.tmp";
- open(my $infile, '<', "$readdir/$file")
+ open(INFILE, "<$readdir/$file")
or die "$readdir/$file: $!\n";
- open(my $outfile, '>', "$tmpfile") or die "$tmpfile: $!\n";
- while (my $line = <$infile>) {
+ open(OUTFILE, ">$tmpfile") or die "$tmpfile: $!\n";
+ while (my $line = <INFILE>) {
$line =~ s/([\s(])__user\s/$1/g;
$line =~ s/([\s(])__force\s/$1/g;
$line =~ s/([\s(])__iomem\s/$1/g;
$line =~ s/\s__attribute_const__\s/ /g;
$line =~ s/\s__attribute_const__$//g;
$line =~ s/^#include <linux\/compiler.h>//;
- printf $outfile "%s", $line;
+ printf OUTFILE "%s", $line;
}
- close $outfile;
- close $infile;
+ close OUTFILE;
+ close INFILE;
system $unifdef . " $tmpfile > $installdir/$file";
unlink $tmpfile;
}
release_file(file, len);
return 1;
}
+/* Check whether the file is a static library or not */
+static int is_static_library(const char *objfile)
+{
+ int len = strlen(objfile);
+ if (objfile[len - 2] == '.' && objfile[len - 1] == 'a')
+ return 1;
+ else
+ return 0;
+}
/* We have dir/file.o. Open dir/.file.o.cmd, look for deps_ line to
* figure out source file. */
while ((fname = strsep(&sources, " ")) != NULL) {
if (!*fname)
continue;
- if (!parse_source_files(fname, &md))
+ if (!(is_static_library(fname)) &&
+ !parse_source_files(fname, &md))
goto release;
}
echo "%build"
if ! $PREBUILT; then
-echo "make clean && make %{_smp_mflags}"
+echo "make clean && make %{?_smp_mflags}"
echo ""
fi
echo "%install"
echo "%ifarch ia64"
echo 'mkdir -p $RPM_BUILD_ROOT/boot/efi $RPM_BUILD_ROOT/lib/modules'
+echo 'mkdir -p $RPM_BUILD_ROOT/lib/firmware'
echo "%else"
echo 'mkdir -p $RPM_BUILD_ROOT/boot $RPM_BUILD_ROOT/lib/modules'
+echo 'mkdir -p $RPM_BUILD_ROOT/lib/firmware'
echo "%endif"
echo 'INSTALL_MOD_PATH=$RPM_BUILD_ROOT make %{_smp_mflags} modules_install'
echo '%defattr (-, root, root)'
echo "%dir /lib/modules"
echo "/lib/modules/$KERNELRELEASE"
+echo "/lib/firmware"
echo "/boot/*"
echo ""
exit(1);
}
-my ($arch, $objdump, $objcopy, $cc, $ld, $nm, $rm, $mv, $inputfile) = @ARGV;
+my ($arch, $bits, $objdump, $objcopy, $cc,
+ $ld, $nm, $rm, $mv, $inputfile) = @ARGV;
+
+# Acceptable sections to record.
+my %text_sections = (
+ ".text" => 1,
+);
$objdump = "objdump" if ((length $objdump) == 0);
$objcopy = "objcopy" if ((length $objcopy) == 0);
# (return offset and func name)
my $mcount_regex; # Find the call site to mcount (return offset)
+if ($arch eq "x86") {
+ if ($bits == 64) {
+ $arch = "x86_64";
+ } else {
+ $arch = "i386";
+ }
+}
+
if ($arch eq "x86_64") {
- $section_regex = "Disassembly of section";
+ $section_regex = "Disassembly of section\\s+(\\S+):";
$function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";
$mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount([+-]0x[0-9a-zA-Z]+)?\$";
$type = ".quad";
$cc .= " -m64";
} elsif ($arch eq "i386") {
- $section_regex = "Disassembly of section";
+ $section_regex = "Disassembly of section\\s+(\\S+):";
$function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";
$mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount\$";
$type = ".long";
while (<IN>) {
# is it a section?
if (/$section_regex/) {
- $read_function = 1;
+
+ # Only record text sections that we know are safe
+ if (defined($text_sections{$1})) {
+ $read_function = 1;
+ } else {
+ $read_function = 0;
+ }
# print out any recorded offsets
update_funcs() if ($text_found);
cd "${1:-.}" || usage
# Check for git and a git repo.
-if head=`git rev-parse --verify HEAD 2>/dev/null`; then
+if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
# Do we have an untagged version?
if git name-rev --tags HEAD | grep -E '^HEAD[[:space:]]+(.*~[0-9]*|undefined)$' > /dev/null; then
if tag=`git describe 2>/dev/null`; then
echo $tag | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
+ else
+ printf '%s%s' -g $head
fi
fi
# Are there uncommitted changes?
if [ $changes != 0 ]; then
- printf -- '-svn%s%s%s' "$rev" -dirty "$changes"
+ printf -- '-svn%s%s' "$rev" -dirty
else
printf -- '-svn%s' "$rev"
fi
int security_vm_enough_memory(long pages)
{
+ WARN_ON(current->mm == NULL);
return security_ops->vm_enough_memory(current->mm, pages);
}
int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
{
+ WARN_ON(mm == NULL);
return security_ops->vm_enough_memory(mm, pages);
}
+int security_vm_enough_memory_kern(long pages)
+{
+ /* If current->mm is a kernel thread then we will pass NULL,
+ for this specific case that is fine */
+ return security_ops->vm_enough_memory(current->mm, pages);
+}
+
int security_bprm_alloc(struct linux_binprm *bprm)
{
return security_ops->bprm_alloc_security(bprm);
kctl.id.iface = ncontrol->iface;
kctl.id.device = ncontrol->device;
kctl.id.subdevice = ncontrol->subdevice;
- if (ncontrol->name)
+ if (ncontrol->name) {
strlcpy(kctl.id.name, ncontrol->name, sizeof(kctl.id.name));
+ if (strcmp(ncontrol->name, kctl.id.name) != 0)
+ snd_printk(KERN_WARNING
+ "Control name '%s' truncated to '%s'\n",
+ ncontrol->name, kctl.id.name);
+ }
kctl.id.index = ncontrol->index;
kctl.count = ncontrol->count ? ncontrol->count : 1;
access = ncontrol->access == 0 ? SNDRV_CTL_ELEM_ACCESS_READWRITE :
ac97->dev.bus = &ac97_bus_type;
ac97->dev.parent = ac97->bus->card->dev;
ac97->dev.release = ac97_device_release;
- snprintf(ac97->dev.bus_id, BUS_ID_SIZE, "%d-%d:%s",
- ac97->bus->card->number, ac97->num,
- snd_ac97_get_short_name(ac97));
+ dev_set_name(&ac97->dev, "%d-%d:%s",
+ ac97->bus->card->number, ac97->num,
+ snd_ac97_get_short_name(ac97));
if ((err = device_register(&ac97->dev)) < 0) {
snd_printk(KERN_ERR "Can't register ac97 bus\n");
ac97->dev.bus = NULL;
{ 0x14f1, "Conexant" },
{ 0x17e8, "Chrontel" },
{ 0x1854, "LG" },
+ { 0x1aec, "Wolfson Microelectronics" },
{ 0x434d, "C-Media" },
{ 0x8384, "SigmaTel" },
{} /* terminator */
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/mutex.h>
+#include <linux/reboot.h>
#include <sound/core.h>
#include <sound/initval.h>
#include "hda_codec.h"
/* for pending irqs */
struct work_struct irq_pending_work;
+
+ /* reboot notifier (for mysterious hangup problem at power-down) */
+ struct notifier_block reboot_notifier;
};
/* driver types */
#endif /* CONFIG_PM */
+/*
+ * reboot notifier for hang-up problem at power-down
+ */
+static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
+{
+ struct azx *chip = container_of(nb, struct azx, reboot_notifier);
+ azx_stop_chip(chip);
+ return NOTIFY_OK;
+}
+
+static void azx_notifier_register(struct azx *chip)
+{
+ chip->reboot_notifier.notifier_call = azx_halt;
+ register_reboot_notifier(&chip->reboot_notifier);
+}
+
+static void azx_notifier_unregister(struct azx *chip)
+{
+ if (chip->reboot_notifier.notifier_call)
+ unregister_reboot_notifier(&chip->reboot_notifier);
+}
+
/*
* destructor
*/
{
int i;
+ azx_notifier_unregister(chip);
+
if (chip->initialized) {
azx_clear_irq_pending(chip);
for (i = 0; i < chip->num_streams; i++)
pci_set_drvdata(pci, card);
chip->running = 1;
power_down_all_codecs(chip);
+ azx_notifier_register(chip);
dev++;
return err;
static struct snd_pci_quirk ad1884a_cfg_tbl[] = {
SND_PCI_QUIRK(0x103c, 0x3030, "HP", AD1884A_MOBILE),
+ SND_PCI_QUIRK(0x103c, 0x3056, "HP", AD1884A_MOBILE),
SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X300", AD1884A_THINKPAD),
{}
};
nid = codec->slave_dig_outs[smux_idx - 1];
if (spec->cur_smux[smux_idx] == smux->num_items - 1)
val = AMP_OUT_MUTE;
- if (smux_idx == 0)
- nid = spec->multiout.dig_out_nid;
else
- nid = codec->slave_dig_outs[smux_idx - 1];
+ val = AMP_OUT_UNMUTE;
/* un/mute SPDIF out */
snd_hda_codec_write_cache(codec, nid, 0,
AC_VERB_SET_AMP_GAIN_MUTE, val);
return err;
}
- if (ice_has_con_ac97(ice))
+ if (ice_has_con_ac97(ice)) {
err = snd_ice1712_pcm(ice, pcm_dev++, NULL);
if (err < 0) {
snd_card_free(card);
return err;
}
+ }
err = snd_ice1712_ac97_mixer(ice);
if (err < 0) {
}
}
- if (ice_has_con_ac97(ice))
+ if (ice_has_con_ac97(ice)) {
err = snd_ice1712_pcm_ds(ice, pcm_dev++, NULL);
if (err < 0) {
snd_card_free(card);
return err;
}
+ }
if (!c->no_mpu401) {
err = snd_mpu401_uart_new(card, 0, MPU401_HW_ICE1712,
SND_PCI_QUIRK(0x0e11, 0x008a, "AD1885", 41000),
SND_PCI_QUIRK(0x1028, 0x00be, "AD1885", 44100),
SND_PCI_QUIRK(0x1028, 0x0177, "AD1980", 48000),
+ SND_PCI_QUIRK(0x1028, 0x01ad, "AD1981B", 48000),
SND_PCI_QUIRK(0x1043, 0x80f3, "AD1985", 48000),
{ } /* terminator */
};
SOC_SINGLE("ALC Target Volume", AC97_CODEC_CLASS_REV, 12, 15, 0),
SOC_SINGLE("ALC Hold Time", AC97_CODEC_CLASS_REV, 8, 15, 0),
-SOC_SINGLE("ALC Decay Time ", AC97_CODEC_CLASS_REV, 4, 15, 0),
+SOC_SINGLE("ALC Decay Time", AC97_CODEC_CLASS_REV, 4, 15, 0),
SOC_SINGLE("ALC Attack Time", AC97_CODEC_CLASS_REV, 0, 15, 0),
SOC_ENUM("ALC Function", wm9713_enum[6]),
SOC_SINGLE("ALC Max Volume", AC97_PCI_SVID, 11, 7, 0),
struct mpc52xx_psc __iomem *regs = psc_i2s->psc_regs;
u16 imr;
u8 psc_cmd;
- long flags;
+ unsigned long flags;
if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)
s = &psc_i2s->capture;
return count;
}
-DEVICE_ATTR(status, 0644, psc_i2s_status_show, NULL);
-DEVICE_ATTR(playback_underrun, 0644, psc_i2s_stat_show, psc_i2s_stat_store);
-DEVICE_ATTR(capture_overrun, 0644, psc_i2s_stat_show, psc_i2s_stat_store);
+static DEVICE_ATTR(status, 0644, psc_i2s_status_show, NULL);
+static DEVICE_ATTR(playback_underrun, 0644, psc_i2s_stat_show,
+ psc_i2s_stat_store);
+static DEVICE_ATTR(capture_overrun, 0644, psc_i2s_stat_show,
+ psc_i2s_stat_store);
/* ---------------------------------------------------------------------
* OF platform bus binding code:
/* Register the SYSFS files */
rc = device_create_file(psc_i2s->dev, &dev_attr_status);
- rc = device_create_file(psc_i2s->dev, &dev_attr_capture_overrun);
- rc = device_create_file(psc_i2s->dev, &dev_attr_playback_underrun);
+ rc |= device_create_file(psc_i2s->dev, &dev_attr_capture_overrun);
+ rc |= device_create_file(psc_i2s->dev, &dev_attr_playback_underrun);
if (rc)
dev_info(psc_i2s->dev, "error creating sysfs files\n");
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
int max = mc->max;
- unsigned int shift = mc->min;
+ unsigned int shift = mc->shift;
unsigned int rshift = mc->rshift;
if (max == 1)
}
}
},
+{
+ /* Advanced modes of the Edirol UA-25EX.
+ * For the standard mode, UA-25EX has ID 0582:00e7, which
+ * offers only 16-bit PCM at 44.1 kHz and no MIDI.
+ */
+ USB_DEVICE_VENDOR_SPEC(0x0582, 0x00e6),
+ .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
+ .vendor_name = "EDIROL",
+ .product_name = "UA-25EX",
+ .ifnum = QUIRK_ANY_INTERFACE,
+ .type = QUIRK_COMPOSITE,
+ .data = (const struct snd_usb_audio_quirk[]) {
+ {
+ .ifnum = 0,
+ .type = QUIRK_AUDIO_EDIROL_UAXX
+ },
+ {
+ .ifnum = 1,
+ .type = QUIRK_AUDIO_EDIROL_UAXX
+ },
+ {
+ .ifnum = 2,
+ .type = QUIRK_AUDIO_EDIROL_UAXX
+ },
+ {
+ .ifnum = -1
+ }
+ }
+ }
+},
/* Guillemot devices */
{
#include "ioapic.h"
/* This should be called with the kvm->lock mutex held */
-void kvm_set_irq(struct kvm *kvm, int irq, int level)
+void kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level)
{
+ unsigned long *irq_state = (unsigned long *)&kvm->arch.irq_states[irq];
+
+ /* Logical OR for level trig interrupt */
+ if (level)
+ set_bit(irq_source_id, irq_state);
+ else
+ clear_bit(irq_source_id, irq_state);
+
/* Not possible to detect if the guest uses the PIC or the
* IOAPIC. So set the bit in both. The guest will ignore
* writes to the unused one.
*/
- kvm_ioapic_set_irq(kvm->arch.vioapic, irq, level);
+ kvm_ioapic_set_irq(kvm->arch.vioapic, irq, !!(*irq_state));
#ifdef CONFIG_X86
- kvm_pic_set_irq(pic_irqchip(kvm), irq, level);
+ kvm_pic_set_irq(pic_irqchip(kvm), irq, !!(*irq_state));
#endif
}
{
hlist_del(&kian->link);
}
+
+/* The caller must hold kvm->lock mutex */
+int kvm_request_irq_source_id(struct kvm *kvm)
+{
+ unsigned long *bitmap = &kvm->arch.irq_sources_bitmap;
+ int irq_source_id = find_first_zero_bit(bitmap,
+ sizeof(kvm->arch.irq_sources_bitmap));
+ if (irq_source_id >= sizeof(kvm->arch.irq_sources_bitmap)) {
+ printk(KERN_WARNING "kvm: exhaust allocatable IRQ sources!\n");
+ irq_source_id = -EFAULT;
+ } else
+ set_bit(irq_source_id, bitmap);
+ return irq_source_id;
+}
+
+void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id)
+{
+ int i;
+
+ if (irq_source_id <= 0 ||
+ irq_source_id >= sizeof(kvm->arch.irq_sources_bitmap)) {
+ printk(KERN_ERR "kvm: IRQ source ID out of range!\n");
+ return;
+ }
+ for (i = 0; i < KVM_IOAPIC_NUM_PINS; i++)
+ clear_bit(irq_source_id, &kvm->arch.irq_states[i]);
+ clear_bit(irq_source_id, &kvm->arch.irq_sources_bitmap);
+}
*/
mutex_lock(&assigned_dev->kvm->lock);
kvm_set_irq(assigned_dev->kvm,
+ assigned_dev->irq_source_id,
assigned_dev->guest_irq, 1);
mutex_unlock(&assigned_dev->kvm->lock);
kvm_put_kvm(assigned_dev->kvm);
}
-/* FIXME: Implement the OR logic needed to make shared interrupts on
- * this line behave properly
- */
static irqreturn_t kvm_assigned_dev_intr(int irq, void *dev_id)
{
struct kvm_assigned_dev_kernel *assigned_dev =
dev = container_of(kian, struct kvm_assigned_dev_kernel,
ack_notifier);
- kvm_set_irq(dev->kvm, dev->guest_irq, 0);
+ kvm_set_irq(dev->kvm, dev->irq_source_id, dev->guest_irq, 0);
enable_irq(dev->host_irq);
}
free_irq(assigned_dev->host_irq, (void *)assigned_dev);
kvm_unregister_irq_ack_notifier(kvm, &assigned_dev->ack_notifier);
+ kvm_free_irq_source_id(kvm, assigned_dev->irq_source_id);
if (cancel_work_sync(&assigned_dev->interrupt_work))
/* We had pending work. That means we will have to take
match->ack_notifier.gsi = assigned_irq->guest_irq;
match->ack_notifier.irq_acked = kvm_assigned_dev_ack_irq;
kvm_register_irq_ack_notifier(kvm, &match->ack_notifier);
+ r = kvm_request_irq_source_id(kvm);
+ if (r < 0)
+ goto out_release;
+ else
+ match->irq_source_id = r;
/* Even though this is PCI, we don't want to use shared
* interrupts. Sharing host devices with guest-assigned devices
projects / linux-2.6-omap-h63xx.git / commitdiff