3.6 Constraints
3.7 Example
-4 DRIVER DEVELOPER NOTES
+4 DMAENGINE DRIVER DEVELOPER NOTES
4.1 Conformance points
-4.2 "My application needs finer control of hardware channels"
+4.2 "My application needs exclusive control of hardware channels"
5 SOURCE
implementation examples.
4 DRIVER DEVELOPMENT NOTES
+
4.1 Conformance points:
There are a few conformance points required in dmaengine drivers to
accommodate assumptions made by applications using the async_tx API:
3/ Use async_tx_run_dependencies() in the descriptor clean up path to
handle submission of dependent operations
-4.2 "My application needs finer control of hardware channels"
-This requirement seems to arise from cases where a DMA engine driver is
-trying to support device-to-memory DMA. The dmaengine and async_tx
-implementations were designed for offloading memory-to-memory
-operations; however, there are some capabilities of the dmaengine layer
-that can be used for platform-specific channel management.
-Platform-specific constraints can be handled by registering the
-application as a 'dma_client' and implementing a 'dma_event_callback' to
-apply a filter to the available channels in the system. Before showing
-how to implement a custom dma_event callback some background of
-dmaengine's client support is required.
-
-The following routines in dmaengine support multiple clients requesting
-use of a channel:
-- dma_async_client_register(struct dma_client *client)
-- dma_async_client_chan_request(struct dma_client *client)
-
-dma_async_client_register takes a pointer to an initialized dma_client
-structure. It expects that the 'event_callback' and 'cap_mask' fields
-are already initialized.
-
-dma_async_client_chan_request triggers dmaengine to notify the client of
-all channels that satisfy the capability mask. It is up to the client's
-event_callback routine to track how many channels the client needs and
-how many it is currently using. The dma_event_callback routine returns a
-dma_state_client code to let dmaengine know the status of the
-allocation.
-
-Below is the example of how to extend this functionality for
-platform-specific filtering of the available channels beyond the
-standard capability mask:
-
-static enum dma_state_client
-my_dma_client_callback(struct dma_client *client,
- struct dma_chan *chan, enum dma_state state)
-{
- struct dma_device *dma_dev;
- struct my_platform_specific_dma *plat_dma_dev;
-
- dma_dev = chan->device;
- plat_dma_dev = container_of(dma_dev,
- struct my_platform_specific_dma,
- dma_dev);
-
- if (!plat_dma_dev->platform_specific_capability)
- return DMA_DUP;
-
- . . .
-}
+4.2 "My application needs exclusive control of hardware channels"
+Primarily this requirement arises from cases where a DMA engine driver
+is being used to support device-to-memory operations. A channel that is
+performing these operations cannot, for many platform specific reasons,
+be shared. For these cases the dma_request_channel() interface is
+provided.
+
+The interface is:
+struct dma_chan *dma_request_channel(dma_cap_mask_t mask,
+ dma_filter_fn filter_fn,
+ void *filter_param);
+
+Where dma_filter_fn is defined as:
+typedef bool (*dma_filter_fn)(struct dma_chan *chan, void *filter_param);
+
+When the optional 'filter_fn' parameter is set to NULL
+dma_request_channel simply returns the first channel that satisfies the
+capability mask. Otherwise, when the mask parameter is insufficient for
+specifying the necessary channel, the filter_fn routine can be used to
+disposition the available channels in the system. The filter_fn routine
+is called once for each free channel in the system. Upon seeing a
+suitable channel filter_fn returns DMA_ACK which flags that channel to
+be the return value from dma_request_channel. A channel allocated via
+this interface is exclusive to the caller, until dma_release_channel()
+is called.
+
+The DMA_PRIVATE capability flag is used to tag dma devices that should
+not be used by the general-purpose allocator. It can be set at
+initialization time if it is known that a channel will always be
+private. Alternatively, it is set when dma_request_channel() finds an
+unused "public" channel.
+
+A couple caveats to note when implementing a driver and consumer:
+1/ Once a channel has been privately allocated it will no longer be
+ considered by the general-purpose allocator even after a call to
+ dma_release_channel().
+2/ Since capabilities are specified at the device level a dma_device
+ with multiple channels will either have all channels public, or all
+ channels private.
5 SOURCE
-include/linux/dmaengine.h: core header file for DMA drivers and clients
+
+include/linux/dmaengine.h: core header file for DMA drivers and api users
drivers/dma/dmaengine.c: offload engine channel management routines
drivers/dma/: location for offload engine drivers
include/linux/async_tx.h: core header file for the async_tx api
--- /dev/null
+See Documentation/crypto/async-tx-api.txt
ht -- run only enough ACPI to enable Hyper Threading
strict -- Be less tolerant of platforms that are not
strictly ACPI specification compliant.
+ rsdt -- prefer RSDT over (default) XSDT
See also Documentation/power/pm.txt, pci=noacpi
default: 0
acpi_sleep= [HW,ACPI] Sleep options
- Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig, old_ordering }
- See Documentation/power/video.txt for s3_bios and s3_mode.
+ Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig,
+ old_ordering, s4_nonvs }
+ See Documentation/power/video.txt for information on
+ s3_bios and s3_mode.
s3_beep is for debugging; it makes the PC's speaker beep
as soon as the kernel's real-mode entry point is called.
s4_nohwsig prevents ACPI hardware signature from being
used during resume from hibernation.
old_ordering causes the ACPI 1.0 ordering of the _PTS
- control method, wrt putting devices into low power
- states, to be enforced (the ACPI 2.0 ordering of _PTS is
- used by default).
+ control method, with respect to putting devices into
+ low power states, to be enforced (the ACPI 2.0 ordering
+ of _PTS is used by default).
+ s4_nonvs prevents the kernel from saving/restoring the
+ ACPI NVS memory during hibernation.
acpi_sci= [HW,ACPI] ACPI System Control Interrupt trigger mode
Format: { level | edge | high | low }
acpi_skip_timer_override [HW,ACPI]
Recognize and ignore IRQ0/pin2 Interrupt Override.
For broken nForce2 BIOS resulting in XT-PIC timer.
- acpi_use_timer_override [HW,ACPI}
+ acpi_use_timer_override [HW,ACPI]
Use timer override. For some broken Nvidia NF5 boards
that require a timer override, but don't have
HPET
See Documentation/ide/ide.txt.
idle= [X86]
- Format: idle=poll or idle=mwait, idle=halt, idle=nomwait
- Poll forces a polling idle loop that can slightly improves the performance
- of waking up a idle CPU, but will use a lot of power and make the system
- run hot. Not recommended.
- idle=mwait. On systems which support MONITOR/MWAIT but the kernel chose
- to not use it because it doesn't save as much power as a normal idle
- loop use the MONITOR/MWAIT idle loop anyways. Performance should be the same
- as idle=poll.
- idle=halt. Halt is forced to be used for CPU idle.
+ Format: idle=poll, idle=mwait, idle=halt, idle=nomwait
+ Poll forces a polling idle loop that can slightly
+ improve the performance of waking up a idle CPU, but
+ will use a lot of power and make the system run hot.
+ Not recommended.
+ idle=mwait: On systems which support MONITOR/MWAIT but
+ the kernel chose to not use it because it doesn't save
+ as much power as a normal idle loop, use the
+ MONITOR/MWAIT idle loop anyways. Performance should be
+ the same as idle=poll.
+ idle=halt: Halt is forced to be used for CPU idle.
In such case C2/C3 won't be used again.
- idle=nomwait. Disable mwait for CPU C-states
+ idle=nomwait: Disable mwait for CPU C-states
ide-pci-generic.all-generic-ide [HW] (E)IDE subsystem
Claim all unknown PCI IDE storage controllers.
lapic [X86-32,APIC] Enable the local APIC even if BIOS
disabled it.
- lapic_timer_c2_ok [X86-32,x86-64,APIC] trust the local apic timer in
- C2 power state.
+ lapic_timer_c2_ok [X86-32,x86-64,APIC] trust the local apic timer
+ in C2 power state.
libata.dma= [LIBATA] DMA control
libata.dma=0 Disable all PATA and SATA DMA
thermal.psv= [HW,ACPI]
-1: disable all passive trip points
- <degrees C>: override all passive trip points to this value
+ <degrees C>: override all passive trip points to this
+ value
thermal.tzp= [HW,ACPI]
Specify global default ACPI thermal zone polling rate
--- /dev/null
+AMCC NDFC (NanD Flash Controller)
+
+Required properties:
+- compatible : "ibm,ndfc".
+- reg : should specify chip select and size used for the chip (0x2000).
+
+Optional properties:
+- ccr : NDFC config and control register value (default 0).
+- bank-settings : NDFC bank configuration register value (default 0).
+
+Notes:
+- partition(s) - follows the OF MTD standard for partitions
+
+Example:
+
+ndfc@1,0 {
+ compatible = "ibm,ndfc";
+ reg = <0x00000001 0x00000000 0x00002000>;
+ ccr = <0x00001000>;
+ bank-settings = <0x80002222>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ nand {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "kernel";
+ reg = <0x00000000 0x00200000>;
+ };
+ partition@200000 {
+ label = "root";
+ reg = <0x00200000 0x03E00000>;
+ };
+ };
+};
+
+
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/spi/corgi_lcd.h>
+#include <linux/mtd/sharpsl.h>
#include <video/w100fb.h>
#include <asm/setup.h>
static inline void corgi_init_spi(void) {}
#endif
+static struct mtd_partition sharpsl_nand_partitions[] = {
+ {
+ .name = "System Area",
+ .offset = 0,
+ .size = 7 * 1024 * 1024,
+ },
+ {
+ .name = "Root Filesystem",
+ .offset = 7 * 1024 * 1024,
+ .size = 25 * 1024 * 1024,
+ },
+ {
+ .name = "Home Filesystem",
+ .offset = MTDPART_OFS_APPEND,
+ .size = MTDPART_SIZ_FULL,
+ },
+};
+
+static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
+
+static struct nand_bbt_descr sharpsl_bbt = {
+ .options = 0,
+ .offs = 4,
+ .len = 2,
+ .pattern = scan_ff_pattern
+};
+
+static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
+ .badblock_pattern = &sharpsl_bbt,
+ .partitions = sharpsl_nand_partitions,
+ .nr_partitions = ARRAY_SIZE(sharpsl_nand_partitions),
+};
+
+static struct resource sharpsl_nand_resources[] = {
+ {
+ .start = 0x0C000000,
+ .end = 0x0C000FFF,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device sharpsl_nand_device = {
+ .name = "sharpsl-nand",
+ .id = -1,
+ .resource = sharpsl_nand_resources,
+ .num_resources = ARRAY_SIZE(sharpsl_nand_resources),
+ .dev.platform_data = &sharpsl_nand_platform_data,
+};
+
static struct mtd_partition sharpsl_rom_parts[] = {
{
.name ="Boot PROM Filesystem",
&corgifb_device,
&corgikbd_device,
&corgiled_device,
+ &sharpsl_nand_device,
&sharpsl_rom_device,
};
platform_scoop_config = &corgi_pcmcia_config;
+ if (machine_is_husky())
+ sharpsl_nand_partitions[1].size = 53 * 1024 * 1024;
+
platform_add_devices(devices, ARRAY_SIZE(devices));
}
#include <linux/gpio.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
+#include <linux/mtd/sharpsl.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
.lcd_conn = LCD_COLOR_TFT_16BPP,
};
+static struct mtd_partition sharpsl_nand_partitions[] = {
+ {
+ .name = "System Area",
+ .offset = 0,
+ .size = 7 * 1024 * 1024,
+ },
+ {
+ .name = "Root Filesystem",
+ .offset = 7 * 1024 * 1024,
+ .size = 22 * 1024 * 1024,
+ },
+ {
+ .name = "Home Filesystem",
+ .offset = MTDPART_OFS_APPEND,
+ .size = MTDPART_SIZ_FULL,
+ },
+};
+
+static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
+
+static struct nand_bbt_descr sharpsl_bbt = {
+ .options = 0,
+ .offs = 4,
+ .len = 2,
+ .pattern = scan_ff_pattern
+};
+
+static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
+ .badblock_pattern = &sharpsl_bbt,
+ .partitions = sharpsl_nand_partitions,
+ .nr_partitions = ARRAY_SIZE(sharpsl_nand_partitions),
+};
+
+static struct resource sharpsl_nand_resources[] = {
+ {
+ .start = 0x0C000000,
+ .end = 0x0C000FFF,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device sharpsl_nand_device = {
+ .name = "sharpsl-nand",
+ .id = -1,
+ .resource = sharpsl_nand_resources,
+ .num_resources = ARRAY_SIZE(sharpsl_nand_resources),
+ .dev.platform_data = &sharpsl_nand_platform_data,
+};
+
static struct mtd_partition sharpsl_rom_parts[] = {
{
.name ="Boot PROM Filesystem",
static struct platform_device *devices[] __initdata = {
&poodle_locomo_device,
&poodle_scoop_device,
+ &sharpsl_nand_device,
&sharpsl_rom_device,
};
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/spi/corgi_lcd.h>
+#include <linux/mtd/sharpsl.h>
#include <asm/setup.h>
#include <asm/memory.h>
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_ALTERNATE_MAPPING,
};
+static struct mtd_partition sharpsl_nand_partitions[] = {
+ {
+ .name = "System Area",
+ .offset = 0,
+ .size = 7 * 1024 * 1024,
+ },
+ {
+ .name = "Root Filesystem",
+ .offset = 7 * 1024 * 1024,
+ },
+ {
+ .name = "Home Filesystem",
+ .offset = MTDPART_OFS_APPEND,
+ .size = MTDPART_SIZ_FULL,
+ },
+};
+
+static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
+
+static struct nand_bbt_descr sharpsl_bbt = {
+ .options = 0,
+ .offs = 4,
+ .len = 2,
+ .pattern = scan_ff_pattern
+};
+
+static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
+ .badblock_pattern = &sharpsl_bbt,
+ .partitions = sharpsl_nand_partitions,
+ .nr_partitions = ARRAY_SIZE(sharpsl_nand_partitions),
+};
+
+static struct resource sharpsl_nand_resources[] = {
+ {
+ .start = 0x0C000000,
+ .end = 0x0C000FFF,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device sharpsl_nand_device = {
+ .name = "sharpsl-nand",
+ .id = -1,
+ .resource = sharpsl_nand_resources,
+ .num_resources = ARRAY_SIZE(sharpsl_nand_resources),
+ .dev.platform_data = &sharpsl_nand_platform_data,
+};
+
static struct mtd_partition sharpsl_rom_parts[] = {
{
&spitzscoop_device,
&spitzkbd_device,
&spitzled_device,
+ &sharpsl_nand_device,
&sharpsl_rom_device,
};
pm_power_off = spitz_poweroff;
arm_pm_restart = spitz_restart;
+ if (machine_is_spitz()) {
+ sharpsl_nand_partitions[1].size = 5 * 1024 * 1024;
+ } else if (machine_is_akita()) {
+ sharpsl_nand_partitions[1].size = 58 * 1024 * 1024;
+ } else if (machine_is_borzoi()) {
+ sharpsl_nand_partitions[1].size = 32 * 1024 * 1024;
+ }
+
PMCR = 0x00;
/* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
},
};
+static struct nand_bbt_descr sharpsl_akita_bbt = {
+ .options = 0,
+ .offs = 4,
+ .len = 1,
+ .pattern = scan_ff_pattern
+};
+
+static struct nand_ecclayout akita_oobinfo = {
+ .eccbytes = 24,
+ .eccpos = {
+ 0x5, 0x1, 0x2, 0x3, 0x6, 0x7, 0x15, 0x11,
+ 0x12, 0x13, 0x16, 0x17, 0x25, 0x21, 0x22, 0x23,
+ 0x26, 0x27, 0x35, 0x31, 0x32, 0x33, 0x36, 0x37},
+ .oobfree = {{0x08, 0x09}}
+};
+
static void __init akita_init(void)
{
spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode;
+ sharpsl_nand_platform_data.badblock_pattern = &sharpsl_akita_bbt;
+ sharpsl_nand_platform_data.ecc_layout = &akita_oobinfo;
+
/* We just pretend the second element of the array doesn't exist */
spitz_pcmcia_config.num_devs = 1;
platform_scoop_config = &spitz_pcmcia_config;
at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
{
struct platform_device *pdev;
- struct dw_dma_slave *dws;
+ struct dw_dma_slave *dws = &data->dma_slave;
u32 pioa_mask;
u32 piob_mask;
ARRAY_SIZE(atmel_mci0_resource)))
goto fail;
- if (data->dma_slave)
- dws = kmemdup(to_dw_dma_slave(data->dma_slave),
- sizeof(struct dw_dma_slave), GFP_KERNEL);
- else
- dws = kzalloc(sizeof(struct dw_dma_slave), GFP_KERNEL);
-
- dws->slave.dev = &pdev->dev;
- dws->slave.dma_dev = &dw_dmac0_device.dev;
- dws->slave.reg_width = DMA_SLAVE_WIDTH_32BIT;
+ dws->dma_dev = &dw_dmac0_device.dev;
+ dws->reg_width = DW_DMA_SLAVE_WIDTH_32BIT;
dws->cfg_hi = (DWC_CFGH_SRC_PER(0)
| DWC_CFGH_DST_PER(1));
dws->cfg_lo &= ~(DWC_CFGL_HS_DST_POL
| DWC_CFGL_HS_SRC_POL);
- data->dma_slave = &dws->slave;
-
if (platform_device_add_data(pdev, data,
sizeof(struct mci_platform_data)))
goto fail;
#define _ASM_IA64_ACPI_EXT_H
#include <linux/types.h>
-#include <acpi/actypes.h>
extern acpi_status hp_acpi_csr_space (acpi_handle, u64 *base, u64 *length);
#ifndef _ASM_IA64_SN_ACPI_H
#define _ASM_IA64_SN_ACPI_H
-#include "acpi/acglobal.h"
-
extern int sn_acpi_rev;
#define SN_ACPI_BASE_SUPPORT() (sn_acpi_rev >= 0x20101)
void (*pm_power_off) (void);
EXPORT_SYMBOL(pm_power_off);
+u32 acpi_rsdt_forced;
unsigned int acpi_cpei_override;
unsigned int acpi_cpei_phys_cpuid;
#include <asm/sn/sn_sal.h>
#include "xtalk/hubdev.h"
#include <linux/acpi.h>
-#include <acpi/acnamesp.h>
/*
sn_acpi_hubdev_init(acpi_handle handle, u32 depth, void *context, void **ret)
{
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ struct acpi_buffer name_buffer = { ACPI_ALLOCATE_BUFFER, NULL };
u64 addr;
struct hubdev_info *hubdev;
struct hubdev_info *hubdev_ptr;
status = acpi_get_vendor_resource(handle, METHOD_NAME__CRS,
&sn_uuid, &buffer);
if (ACPI_FAILURE(status)) {
+ acpi_get_name(handle, ACPI_FULL_PATHNAME, &name_buffer);
printk(KERN_ERR
"sn_acpi_hubdev_init: acpi_get_vendor_resource() "
- "(0x%x) failed for: ", status);
- acpi_ns_print_node_pathname(handle, NULL);
- printk("\n");
+ "(0x%x) failed for: %s\n", status,
+ (char *)name_buffer.pointer);
+ kfree(name_buffer.pointer);
return AE_OK; /* Continue walking namespace */
}
vendor = &resource->data.vendor_typed;
if ((vendor->byte_length - sizeof(struct acpi_vendor_uuid)) !=
sizeof(struct hubdev_info *)) {
+ acpi_get_name(handle, ACPI_FULL_PATHNAME, &name_buffer);
printk(KERN_ERR
- "sn_acpi_hubdev_init: Invalid vendor data length: %d for: ",
- vendor->byte_length);
- acpi_ns_print_node_pathname(handle, NULL);
- printk("\n");
+ "sn_acpi_hubdev_init: Invalid vendor data length: "
+ "%d for: %s\n",
+ vendor->byte_length, (char *)name_buffer.pointer);
+ kfree(name_buffer.pointer);
goto exit;
}
{
u64 addr;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ struct acpi_buffer name_buffer = { ACPI_ALLOCATE_BUFFER, NULL };
acpi_handle handle;
struct pcibus_bussoft *prom_bussoft_ptr;
struct acpi_resource *resource;
status = acpi_get_vendor_resource(handle, METHOD_NAME__CRS,
&sn_uuid, &buffer);
if (ACPI_FAILURE(status)) {
+ acpi_get_name(handle, ACPI_FULL_PATHNAME, &name_buffer);
printk(KERN_ERR "%s: "
- "acpi_get_vendor_resource() failed (0x%x) for: ",
- __func__, status);
- acpi_ns_print_node_pathname(handle, NULL);
- printk("\n");
+ "acpi_get_vendor_resource() failed (0x%x) for: %s\n",
+ __func__, status, (char *)name_buffer.pointer);
+ kfree(name_buffer.pointer);
return NULL;
}
resource = buffer.pointer;
{
u64 addr;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ struct acpi_buffer name_buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct sn_irq_info *irq_info, *irq_info_prom;
struct pcidev_info *pcidev_ptr, *pcidev_prom_ptr;
struct acpi_resource *resource;
status = acpi_get_vendor_resource(handle, METHOD_NAME__CRS,
&sn_uuid, &buffer);
if (ACPI_FAILURE(status)) {
+ acpi_get_name(handle, ACPI_FULL_PATHNAME, &name_buffer);
printk(KERN_ERR
- "%s: acpi_get_vendor_resource() failed (0x%x) for: ",
- __func__, status);
- acpi_ns_print_node_pathname(handle, NULL);
- printk("\n");
+ "%s: acpi_get_vendor_resource() failed (0x%x) for: %s\n",
+ __func__, status, (char *)name_buffer.pointer);
+ kfree(name_buffer.pointer);
return 1;
}
vendor = &resource->data.vendor_typed;
if ((vendor->byte_length - sizeof(struct acpi_vendor_uuid)) !=
sizeof(struct pci_devdev_info *)) {
+ acpi_get_name(handle, ACPI_FULL_PATHNAME, &name_buffer);
printk(KERN_ERR
- "%s: Invalid vendor data length: %d for: ",
- __func__, vendor->byte_length);
- acpi_ns_print_node_pathname(handle, NULL);
- printk("\n");
+ "%s: Invalid vendor data length: %d for: %s\n",
+ __func__, vendor->byte_length,
+ (char *)name_buffer.pointer);
+ kfree(name_buffer.pointer);
ret = 1;
goto exit;
}
acpi_handle parent;
int slot;
acpi_status status;
+ struct acpi_buffer name_buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+
+ acpi_get_name(device_handle, ACPI_FULL_PATHNAME, &name_buffer);
/*
* Do an upward search to find the root bus device, and
status = acpi_get_parent(child, &parent);
if (ACPI_FAILURE(status)) {
printk(KERN_ERR "%s: acpi_get_parent() failed "
- "(0x%x) for: ", __func__, status);
- acpi_ns_print_node_pathname(child, NULL);
- printk("\n");
+ "(0x%x) for: %s\n", __func__, status,
+ (char *)name_buffer.pointer);
panic("%s: Unable to find host devfn\n", __func__);
}
if (parent == rootbus_handle)
child = parent;
}
if (!child) {
- printk(KERN_ERR "%s: Unable to find root bus for: ",
- __func__);
- acpi_ns_print_node_pathname(device_handle, NULL);
- printk("\n");
+ printk(KERN_ERR "%s: Unable to find root bus for: %s\n",
+ __func__, (char *)name_buffer.pointer);
BUG();
}
status = acpi_evaluate_integer(child, METHOD_NAME__ADR, NULL, &adr);
if (ACPI_FAILURE(status)) {
- printk(KERN_ERR "%s: Unable to get _ADR (0x%x) for: ",
- __func__, status);
- acpi_ns_print_node_pathname(child, NULL);
- printk("\n");
+ printk(KERN_ERR "%s: Unable to get _ADR (0x%x) for: %s\n",
+ __func__, status, (char *)name_buffer.pointer);
panic("%s: Unable to find host devfn\n", __func__);
}
+ kfree(name_buffer.pointer);
+
slot = (adr >> 16) & 0xffff;
function = adr & 0xffff;
devfn = PCI_DEVFN(slot, function);
int function;
int slot;
struct sn_pcidev_match *info = context;
+ struct acpi_buffer name_buffer = { ACPI_ALLOCATE_BUFFER, NULL };
status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL,
&adr);
if (ACPI_SUCCESS(status)) {
status = acpi_get_parent(handle, &parent);
if (ACPI_FAILURE(status)) {
+ acpi_get_name(handle, ACPI_FULL_PATHNAME, &name_buffer);
printk(KERN_ERR
- "%s: acpi_get_parent() failed (0x%x) for: ",
- __func__, status);
- acpi_ns_print_node_pathname(handle, NULL);
- printk("\n");
+ "%s: acpi_get_parent() failed (0x%x) for: %s\n",
+ __func__, status, (char *)name_buffer.pointer);
+ kfree(name_buffer.pointer);
return AE_OK;
}
status = acpi_evaluate_integer(parent, METHOD_NAME__BBN,
NULL, &bbn);
if (ACPI_FAILURE(status)) {
+ acpi_get_name(handle, ACPI_FULL_PATHNAME, &name_buffer);
printk(KERN_ERR
- "%s: Failed to find _BBN in parent of: ",
- __func__);
- acpi_ns_print_node_pathname(handle, NULL);
- printk("\n");
+ "%s: Failed to find _BBN in parent of: %s\n",
+ __func__, (char *)name_buffer.pointer);
+ kfree(name_buffer.pointer);
return AE_OK;
}
acpi_handle rootbus_handle;
unsigned long long segment;
acpi_status status;
+ struct acpi_buffer name_buffer = { ACPI_ALLOCATE_BUFFER, NULL };
rootbus_handle = PCI_CONTROLLER(dev)->acpi_handle;
status = acpi_evaluate_integer(rootbus_handle, METHOD_NAME__SEG, NULL,
&segment);
if (ACPI_SUCCESS(status)) {
if (segment != pci_domain_nr(dev)) {
+ acpi_get_name(rootbus_handle, ACPI_FULL_PATHNAME,
+ &name_buffer);
printk(KERN_ERR
- "%s: Segment number mismatch, 0x%llx vs 0x%x for: ",
- __func__, segment, pci_domain_nr(dev));
- acpi_ns_print_node_pathname(rootbus_handle, NULL);
- printk("\n");
+ "%s: Segment number mismatch, 0x%llx vs 0x%x for: %s\n",
+ __func__, segment, pci_domain_nr(dev),
+ (char *)name_buffer.pointer);
+ kfree(name_buffer.pointer);
return 1;
}
} else {
- printk(KERN_ERR "%s: Unable to get __SEG from: ",
- __func__);
- acpi_ns_print_node_pathname(rootbus_handle, NULL);
- printk("\n");
+ acpi_get_name(rootbus_handle, ACPI_FULL_PATHNAME, &name_buffer);
+ printk(KERN_ERR "%s: Unable to get __SEG from: %s\n",
+ __func__, (char *)name_buffer.pointer);
+ kfree(name_buffer.pointer);
return 1;
}
#include <linux/acpi.h>
#include <asm/sn/sn2/sn_hwperf.h>
#include <asm/sn/acpi.h>
-#include "acpi/acglobal.h"
extern void sn_init_cpei_timer(void);
extern void register_sn_procfs(void);
{
struct acpi_table_header *header = NULL;
- acpi_get_table_by_index(ACPI_TABLE_INDEX_DSDT, &header);
+ acpi_get_table(ACPI_SIG_DSDT, 1, &header);
BUG_ON(header == NULL);
sn_acpi_rev = header->oem_revision;
}
{
struct acpi_table_header *header;
- (void)acpi_get_table_by_index(ACPI_TABLE_INDEX_DSDT, &header);
+ (void)acpi_get_table(ACPI_SIG_DSDT, 1, &header);
printk(KERN_INFO "ACPI DSDT OEM Rev 0x%x\n",
header->oem_revision);
}
drivers-$(CONFIG_OPROFILE) += arch/parisc/oprofile/
-PALO := $(shell if which palo; then : ; \
+PALO := $(shell if (which palo 2>&1); then : ; \
elif [ -x /sbin/palo ]; then echo /sbin/palo; \
fi)
include include/asm-generic/Kbuild.asm
unifdef-y += pdc.h
+unifdef-y += swab.h
#ifndef _PARISC_BYTEORDER_H
#define _PARISC_BYTEORDER_H
-#include <asm/types.h>
-#include <linux/compiler.h>
-
-#ifdef __GNUC__
-
-static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x)
-{
- __asm__("dep %0, 15, 8, %0\n\t" /* deposit 00ab -> 0bab */
- "shd %%r0, %0, 8, %0" /* shift 000000ab -> 00ba */
- : "=r" (x)
- : "0" (x));
- return x;
-}
-
-static __inline__ __attribute_const__ __u32 ___arch__swab24(__u32 x)
-{
- __asm__("shd %0, %0, 8, %0\n\t" /* shift xabcxabc -> cxab */
- "dep %0, 15, 8, %0\n\t" /* deposit cxab -> cbab */
- "shd %%r0, %0, 8, %0" /* shift 0000cbab -> 0cba */
- : "=r" (x)
- : "0" (x));
- return x;
-}
-
-static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
-{
- unsigned int temp;
- __asm__("shd %0, %0, 16, %1\n\t" /* shift abcdabcd -> cdab */
- "dep %1, 15, 8, %1\n\t" /* deposit cdab -> cbab */
- "shd %0, %1, 8, %0" /* shift abcdcbab -> dcba */
- : "=r" (x), "=&r" (temp)
- : "0" (x));
- return x;
-}
-
-
-#if BITS_PER_LONG > 32
-/*
-** From "PA-RISC 2.0 Architecture", HP Professional Books.
-** See Appendix I page 8 , "Endian Byte Swapping".
-**
-** Pretty cool algorithm: (* == zero'd bits)
-** PERMH 01234567 -> 67452301 into %0
-** HSHL 67452301 -> 7*5*3*1* into %1
-** HSHR 67452301 -> *6*4*2*0 into %0
-** OR %0 | %1 -> 76543210 into %0 (all done!)
-*/
-static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x) {
- __u64 temp;
- __asm__("permh,3210 %0, %0\n\t"
- "hshl %0, 8, %1\n\t"
- "hshr,u %0, 8, %0\n\t"
- "or %1, %0, %0"
- : "=r" (x), "=&r" (temp)
- : "0" (x));
- return x;
-}
-#define __arch__swab64(x) ___arch__swab64(x)
-#define __BYTEORDER_HAS_U64__
-#elif !defined(__STRICT_ANSI__)
-static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
-{
- __u32 t1 = ___arch__swab32((__u32) x);
- __u32 t2 = ___arch__swab32((__u32) (x >> 32));
- return (((__u64) t1 << 32) | t2);
-}
-#define __arch__swab64(x) ___arch__swab64(x)
-#define __BYTEORDER_HAS_U64__
-#endif
-
-#define __arch__swab16(x) ___arch__swab16(x)
-#define __arch__swab24(x) ___arch__swab24(x)
-#define __arch__swab32(x) ___arch__swab32(x)
-
-#endif /* __GNUC__ */
-
+#include <asm/swab.h>
#include <linux/byteorder/big_endian.h>
#endif /* _PARISC_BYTEORDER_H */
#endif
: "=r" (sum), "=r" (saddr), "=r" (daddr), "=r" (len)
: "0" (sum), "1" (saddr), "2" (daddr), "3" (len), "r" (proto)
- : "r19", "r20", "r21", "r22");
+ : "r19", "r20", "r21", "r22", "memory");
return csum_fold(sum);
}
#include <linux/types.h>
#include <asm/pgtable.h>
-extern unsigned long parisc_vmerge_boundary;
-extern unsigned long parisc_vmerge_max_size;
-
-#define BIO_VMERGE_BOUNDARY parisc_vmerge_boundary
-#define BIO_VMERGE_MAX_SIZE parisc_vmerge_max_size
-
#define virt_to_phys(a) ((unsigned long)__pa(a))
#define phys_to_virt(a) __va(a)
#define virt_to_bus virt_to_phys
/* readb can never be const, so use __fswab instead of le*_to_cpu */
#define readb(addr) __raw_readb(addr)
-#define readw(addr) __fswab16(__raw_readw(addr))
-#define readl(addr) __fswab32(__raw_readl(addr))
-#define readq(addr) __fswab64(__raw_readq(addr))
+#define readw(addr) le16_to_cpu(__raw_readw(addr))
+#define readl(addr) le32_to_cpu(__raw_readl(addr))
+#define readq(addr) le64_to_cpu(__raw_readq(addr))
#define writeb(b, addr) __raw_writeb(b, addr)
#define writew(b, addr) __raw_writew(cpu_to_le16(b), addr)
#define writel(b, addr) __raw_writel(cpu_to_le32(b), addr)
mm->context = 0;
}
-static inline void load_context(mm_context_t context)
+static inline unsigned long __space_to_prot(mm_context_t context)
{
- mtsp(context, 3);
#if SPACEID_SHIFT == 0
- mtctl(context << 1,8);
+ return context << 1;
#else
- mtctl(context >> (SPACEID_SHIFT - 1),8);
+ return context >> (SPACEID_SHIFT - 1);
#endif
}
+static inline void load_context(mm_context_t context)
+{
+ mtsp(context, 3);
+ mtctl(__space_to_prot(context), 8);
+}
+
static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk)
{
#include <asm/ptrace.h>
#include <asm/types.h>
#include <asm/system.h>
+#include <asm/percpu.h>
#endif /* __ASSEMBLY__ */
#define KERNEL_STACK_SIZE (4*PAGE_SIZE)
};
extern struct system_cpuinfo_parisc boot_cpu_data;
-extern struct cpuinfo_parisc cpu_data[NR_CPUS];
-#define current_cpu_data cpu_data[smp_processor_id()]
+DECLARE_PER_CPU(struct cpuinfo_parisc, cpu_data);
#define CPU_HVERSION ((boot_cpu_data.hversion >> 4) & 0x0FFF)
--- /dev/null
+#ifndef _PARISC_SWAB_H
+#define _PARISC_SWAB_H
+
+#include <asm/types.h>
+#include <linux/compiler.h>
+
+#define __SWAB_64_THRU_32__
+
+static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
+{
+ __asm__("dep %0, 15, 8, %0\n\t" /* deposit 00ab -> 0bab */
+ "shd %%r0, %0, 8, %0" /* shift 000000ab -> 00ba */
+ : "=r" (x)
+ : "0" (x));
+ return x;
+}
+#define __arch_swab16 __arch_swab16
+
+static inline __attribute_const__ __u32 __arch_swab24(__u32 x)
+{
+ __asm__("shd %0, %0, 8, %0\n\t" /* shift xabcxabc -> cxab */
+ "dep %0, 15, 8, %0\n\t" /* deposit cxab -> cbab */
+ "shd %%r0, %0, 8, %0" /* shift 0000cbab -> 0cba */
+ : "=r" (x)
+ : "0" (x));
+ return x;
+}
+
+static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
+{
+ unsigned int temp;
+ __asm__("shd %0, %0, 16, %1\n\t" /* shift abcdabcd -> cdab */
+ "dep %1, 15, 8, %1\n\t" /* deposit cdab -> cbab */
+ "shd %0, %1, 8, %0" /* shift abcdcbab -> dcba */
+ : "=r" (x), "=&r" (temp)
+ : "0" (x));
+ return x;
+}
+#define __arch_swab32 __arch_swab32
+
+#if BITS_PER_LONG > 32
+/*
+** From "PA-RISC 2.0 Architecture", HP Professional Books.
+** See Appendix I page 8 , "Endian Byte Swapping".
+**
+** Pretty cool algorithm: (* == zero'd bits)
+** PERMH 01234567 -> 67452301 into %0
+** HSHL 67452301 -> 7*5*3*1* into %1
+** HSHR 67452301 -> *6*4*2*0 into %0
+** OR %0 | %1 -> 76543210 into %0 (all done!)
+*/
+static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
+{
+ __u64 temp;
+ __asm__("permh,3210 %0, %0\n\t"
+ "hshl %0, 8, %1\n\t"
+ "hshr,u %0, 8, %0\n\t"
+ "or %1, %0, %0"
+ : "=r" (x), "=&r" (temp)
+ : "0" (x));
+ return x;
+}
+#define __arch_swab64 __arch_swab64
+#endif /* BITS_PER_LONG > 32 */
+
+#endif /* _PARISC_SWAB_H */
#define __copy_to_user_inatomic __copy_to_user
#define __copy_from_user_inatomic __copy_from_user
+int fixup_exception(struct pt_regs *regs);
+
#endif /* __PARISC_UACCESS_H */
return match_device(to_parisc_driver(drv), to_parisc_device(dev));
}
+static ssize_t make_modalias(struct device *dev, char *buf)
+{
+ const struct parisc_device *padev = to_parisc_device(dev);
+ const struct parisc_device_id *id = &padev->id;
+
+ return sprintf(buf, "parisc:t%02Xhv%04Xrev%02Xsv%08X\n",
+ (u8)id->hw_type, (u16)id->hversion, (u8)id->hversion_rev,
+ (u32)id->sversion);
+}
+
+static int parisc_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+ const struct parisc_device *padev;
+ char modalias[40];
+
+ if (!dev)
+ return -ENODEV;
+
+ padev = to_parisc_device(dev);
+ if (!padev)
+ return -ENODEV;
+
+ if (add_uevent_var(env, "PARISC_NAME=%s", padev->name))
+ return -ENOMEM;
+
+ make_modalias(dev, modalias);
+ if (add_uevent_var(env, "MODALIAS=%s", modalias))
+ return -ENOMEM;
+
+ return 0;
+}
+
#define pa_dev_attr(name, field, format_string) \
static ssize_t name##_show(struct device *dev, struct device_attribute *attr, char *buf) \
{ \
static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
{
- struct parisc_device *padev = to_parisc_device(dev);
- struct parisc_device_id *id = &padev->id;
-
- return sprintf(buf, "parisc:t%02Xhv%04Xrev%02Xsv%08X\n",
- (u8)id->hw_type, (u16)id->hversion, (u8)id->hversion_rev,
- (u32)id->sversion);
+ return make_modalias(dev, buf);
}
static struct device_attribute parisc_device_attrs[] = {
struct bus_type parisc_bus_type = {
.name = "parisc",
.match = parisc_generic_match,
+ .uevent = parisc_uevent,
.dev_attrs = parisc_device_attrs,
.probe = parisc_driver_probe,
.remove = parisc_driver_remove,
.import intr_save, code
ENTRY(os_hpmc)
+.os_hpmc:
/*
* registers modified:
b .
nop
ENDPROC(os_hpmc)
-ENTRY(os_hpmc_end) /* this label used to compute os_hpmc checksum */
+.os_hpmc_end:
nop
+.data
+.align 4
+ .export os_hpmc_size
+os_hpmc_size:
+ .word .os_hpmc_end-.os_hpmc
irq_desc[irq].affinity = cpumask_of_cpu(cpu);
#endif
- return cpu_data[cpu].txn_addr;
+ return per_cpu(cpu_data, cpu).txn_addr;
}
next_cpu++; /* assign to "next" CPU we want this bugger on */
/* validate entry */
- while ((next_cpu < NR_CPUS) && (!cpu_data[next_cpu].txn_addr ||
- !cpu_online(next_cpu)))
+ while ((next_cpu < NR_CPUS) &&
+ (!per_cpu(cpu_data, next_cpu).txn_addr ||
+ !cpu_online(next_cpu)))
next_cpu++;
if (next_cpu >= NR_CPUS)
printk(KERN_DEBUG "redirecting irq %d from CPU %d to %d\n",
irq, smp_processor_id(), cpu);
gsc_writel(irq + CPU_IRQ_BASE,
- cpu_data[cpu].hpa);
+ per_cpu(cpu_data, cpu).hpa);
goto set_out;
}
#endif
void ack_bad_irq(unsigned int irq)
{
- printk("unexpected IRQ %d\n", irq);
+ printk(KERN_WARNING "unexpected IRQ %d\n", irq);
}
#include <linux/tty.h>
#include <asm/pdc.h> /* for iodc_call() proto and friends */
-static spinlock_t pdc_console_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(pdc_console_lock);
static void pdc_console_write(struct console *co, const char *s, unsigned count)
{
spin_lock_init(&perf_lock);
/* TODO: this only lets us access the first cpu.. what to do for SMP? */
- cpu_device = cpu_data[0].dev;
+ cpu_device = per_cpu(cpu_data, 0).dev;
printk("Performance monitoring counters enabled for %s\n",
- cpu_data[0].dev->name);
+ per_cpu(cpu_data, 0).dev->name);
return 0;
}
* Initial setup-routines for HP 9000 based hardware.
*
* Copyright (C) 1991, 1992, 1995 Linus Torvalds
- * Modifications for PA-RISC (C) 1999 Helge Deller <deller@gmx.de>
+ * Modifications for PA-RISC (C) 1999-2008 Helge Deller <deller@gmx.de>
* Modifications copyright 1999 SuSE GmbH (Philipp Rumpf)
* Modifications copyright 2000 Martin K. Petersen <mkp@mkp.net>
* Modifications copyright 2000 Philipp Rumpf <prumpf@tux.org>
struct system_cpuinfo_parisc boot_cpu_data __read_mostly;
EXPORT_SYMBOL(boot_cpu_data);
-struct cpuinfo_parisc cpu_data[NR_CPUS] __read_mostly;
+DEFINE_PER_CPU(struct cpuinfo_parisc, cpu_data);
extern int update_cr16_clocksource(void); /* from time.c */
** The initialization of OS data structures is the same (done below).
*/
+/**
+ * init_cpu_profiler - enable/setup per cpu profiling hooks.
+ * @cpunum: The processor instance.
+ *
+ * FIXME: doesn't do much yet...
+ */
+static void __cpuinit
+init_percpu_prof(unsigned long cpunum)
+{
+ struct cpuinfo_parisc *p;
+
+ p = &per_cpu(cpu_data, cpunum);
+ p->prof_counter = 1;
+ p->prof_multiplier = 1;
+}
+
+
/**
* processor_probe - Determine if processor driver should claim this device.
* @dev: The device which has been found.
}
#endif
- p = &cpu_data[cpuid];
+ p = &per_cpu(cpu_data, cpuid);
boot_cpu_data.cpu_count++;
/* initialize counters - CPU 0 gets it_value set in time_init() */
#ifdef CONFIG_SMP
/*
** FIXME: review if any other initialization is clobbered
- ** for boot_cpu by the above memset().
+ ** for boot_cpu by the above memset().
*/
-
- /* stolen from init_percpu_prof() */
- cpu_data[cpuid].prof_counter = 1;
- cpu_data[cpuid].prof_multiplier = 1;
+ init_percpu_prof(cpuid);
#endif
/*
}
-/**
- * init_cpu_profiler - enable/setup per cpu profiling hooks.
- * @cpunum: The processor instance.
- *
- * FIXME: doesn't do much yet...
- */
-static inline void __init
-init_percpu_prof(int cpunum)
-{
- cpu_data[cpunum].prof_counter = 1;
- cpu_data[cpunum].prof_multiplier = 1;
-}
-
/**
* init_per_cpu - Handle individual processor initializations.
*
* o Enable CPU profiling hooks.
*/
-int __init init_per_cpu(int cpunum)
+int __cpuinit init_per_cpu(int cpunum)
{
int ret;
struct pdc_coproc_cfg coproc_cfg;
/* FWIW, FP rev/model is a more accurate way to determine
** CPU type. CPU rev/model has some ambiguous cases.
*/
- cpu_data[cpunum].fp_rev = coproc_cfg.revision;
- cpu_data[cpunum].fp_model = coproc_cfg.model;
+ per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
+ per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;
printk(KERN_INFO "FP[%d] enabled: Rev %ld Model %ld\n",
cpunum, coproc_cfg.revision, coproc_cfg.model);
int
show_cpuinfo (struct seq_file *m, void *v)
{
- int n;
+ unsigned long cpu;
- for(n=0; n<boot_cpu_data.cpu_count; n++) {
+ for_each_online_cpu(cpu) {
+ const struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
#ifdef CONFIG_SMP
- if (0 == cpu_data[n].hpa)
+ if (0 == cpuinfo->hpa)
continue;
#endif
- seq_printf(m, "processor\t: %d\n"
+ seq_printf(m, "processor\t: %lu\n"
"cpu family\t: PA-RISC %s\n",
- n, boot_cpu_data.family_name);
+ cpu, boot_cpu_data.family_name);
seq_printf(m, "cpu\t\t: %s\n", boot_cpu_data.cpu_name );
seq_printf(m, "model\t\t: %s\n"
"model name\t: %s\n",
boot_cpu_data.pdc.sys_model_name,
- cpu_data[n].dev ?
- cpu_data[n].dev->name : "Unknown" );
+ cpuinfo->dev ?
+ cpuinfo->dev->name : "Unknown");
seq_printf(m, "hversion\t: 0x%08x\n"
"sversion\t: 0x%08x\n",
show_cache_info(m);
seq_printf(m, "bogomips\t: %lu.%02lu\n",
- cpu_data[n].loops_per_jiffy / (500000 / HZ),
- (cpu_data[n].loops_per_jiffy / (5000 / HZ)) % 100);
+ cpuinfo->loops_per_jiffy / (500000 / HZ),
+ (cpuinfo->loops_per_jiffy / (5000 / HZ)) % 100);
seq_printf(m, "software id\t: %ld\n\n",
boot_cpu_data.pdc.model.sw_id);
EXPORT_SYMBOL(parisc_bus_is_phys);
#endif
-/* This sets the vmerge boundary and size, it's here because it has to
- * be available on all platforms (zero means no-virtual merging) */
-unsigned long parisc_vmerge_boundary = 0;
-unsigned long parisc_vmerge_max_size = 0;
-
void __init setup_cmdline(char **cmdline_p)
{
extern unsigned int boot_args[];
processor_init();
printk(KERN_INFO "CPU(s): %d x %s at %d.%06d MHz\n",
- boot_cpu_data.cpu_count,
+ num_present_cpus(),
boot_cpu_data.cpu_name,
boot_cpu_data.cpu_hz / 1000000,
boot_cpu_data.cpu_hz % 1000000 );
if (ret >= 0 && coproc_cfg.ccr_functional) {
mtctl(coproc_cfg.ccr_functional, 10);
- cpu_data[cpunum].fp_rev = coproc_cfg.revision;
- cpu_data[cpunum].fp_model = coproc_cfg.model;
+ per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
+ per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;
asm volatile ("fstd %fr0,8(%sp)");
} else {
if (lvl >= smp_debug_lvl) \
printk(printargs);
#else
-#define smp_debug(lvl, ...)
+#define smp_debug(lvl, ...) do { } while(0)
#endif /* DEBUG_SMP */
DEFINE_SPINLOCK(smp_lock);
volatile struct task_struct *smp_init_current_idle_task;
-static volatile int cpu_now_booting __read_mostly = 0; /* track which CPU is booting */
+/* track which CPU is booting */
+static volatile int cpu_now_booting __cpuinitdata;
-static int parisc_max_cpus __read_mostly = 1;
+static int parisc_max_cpus __cpuinitdata = 1;
DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED;
ipi_interrupt(int irq, void *dev_id)
{
int this_cpu = smp_processor_id();
- struct cpuinfo_parisc *p = &cpu_data[this_cpu];
+ struct cpuinfo_parisc *p = &per_cpu(cpu_data, this_cpu);
unsigned long ops;
unsigned long flags;
static inline void
ipi_send(int cpu, enum ipi_message_type op)
{
- struct cpuinfo_parisc *p = &cpu_data[cpu];
+ struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpu);
spinlock_t *lock = &per_cpu(ipi_lock, cpu);
unsigned long flags;
spin_lock_irqsave(lock, flags);
p->pending_ipi |= 1 << op;
- gsc_writel(IPI_IRQ - CPU_IRQ_BASE, cpu_data[cpu].hpa);
+ gsc_writel(IPI_IRQ - CPU_IRQ_BASE, p->hpa);
spin_unlock_irqrestore(lock, flags);
}
static inline void
send_IPI_single(int dest_cpu, enum ipi_message_type op)
{
- if (dest_cpu == NO_PROC_ID) {
- BUG();
- return;
- }
+ BUG_ON(dest_cpu == NO_PROC_ID);
ipi_send(dest_cpu, op);
}
/* Initialise the idle task for this CPU */
atomic_inc(&init_mm.mm_count);
current->active_mm = &init_mm;
- if(current->mm)
- BUG();
+ BUG_ON(current->mm);
enter_lazy_tlb(&init_mm, current);
init_IRQ(); /* make sure no IRQs are enabled or pending */
*/
int __cpuinit smp_boot_one_cpu(int cpuid)
{
+ const struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpuid);
struct task_struct *idle;
long timeout;
smp_init_current_idle_task = idle ;
mb();
- printk("Releasing cpu %d now, hpa=%lx\n", cpuid, cpu_data[cpuid].hpa);
+ printk(KERN_INFO "Releasing cpu %d now, hpa=%lx\n", cpuid, p->hpa);
/*
** This gets PDC to release the CPU from a very tight loop.
** EIR{0}). MEM_RENDEZ is valid only when it is nonzero and the
** contents of memory are valid."
*/
- gsc_writel(TIMER_IRQ - CPU_IRQ_BASE, cpu_data[cpuid].hpa);
+ gsc_writel(TIMER_IRQ - CPU_IRQ_BASE, p->hpa);
mb();
/*
return 0;
}
-void __devinit smp_prepare_boot_cpu(void)
+void __init smp_prepare_boot_cpu(void)
{
- int bootstrap_processor=cpu_data[0].cpuid; /* CPU ID of BSP */
+ int bootstrap_processor = per_cpu(cpu_data, 0).cpuid;
/* Setup BSP mappings */
- printk("SMP: bootstrap CPU ID is %d\n",bootstrap_processor);
+ printk(KERN_INFO "SMP: bootstrap CPU ID is %d\n", bootstrap_processor);
cpu_set(bootstrap_processor, cpu_online_map);
cpu_set(bootstrap_processor, cpu_present_map);
unsigned long cycles_elapsed, ticks_elapsed;
unsigned long cycles_remainder;
unsigned int cpu = smp_processor_id();
- struct cpuinfo_parisc *cpuinfo = &cpu_data[cpu];
+ struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
/* gcc can optimize for "read-only" case with a local clocktick */
unsigned long cpt = clocktick;
mtctl(next_tick, 16); /* kick off Interval Timer (CR16) */
- cpu_data[cpu].it_value = next_tick;
+ per_cpu(cpu_data, cpu).it_value = next_tick;
}
struct platform_device rtc_parisc_dev = {
#include <linux/cpu.h>
#include <linux/cache.h>
-static struct cpu cpu_devices[NR_CPUS] __read_mostly;
+static DEFINE_PER_CPU(struct cpu, cpu_devices);
static int __init topology_init(void)
{
int num;
for_each_present_cpu(num) {
- register_cpu(&cpu_devices[num], num);
+ register_cpu(&per_cpu(cpu_devices, num), num);
}
return 0;
}
/* Fall Through */
case 27:
/* Data memory protection ID trap */
+ if (code == 27 && !user_mode(regs) &&
+ fixup_exception(regs))
+ return;
+
die_if_kernel("Protection id trap", regs, code);
si.si_code = SEGV_MAPERR;
si.si_signo = SIGSEGV;
int __init check_ivt(void *iva)
{
+ extern u32 os_hpmc_size;
extern const u32 os_hpmc[];
- extern const u32 os_hpmc_end[];
int i;
u32 check = 0;
*ivap++ = 0;
/* Compute Checksum for HPMC handler */
-
- length = os_hpmc_end - os_hpmc;
+ length = os_hpmc_size;
ivap[7] = length;
hpmcp = (u32 *)os_hpmc;
struct pt_regs *r = &t->thread.regs;
struct pt_regs *r2;
- r2 = kmalloc(sizeof(struct pt_regs), GFP_KERNEL);
+ r2 = kmalloc(sizeof(struct pt_regs), GFP_ATOMIC);
if (!r2)
return;
*r2 = *r;
iomem_write32r,
};
-const struct iomap_ops *iomap_ops[8] = {
+static const struct iomap_ops *iomap_ops[8] = {
[0] = &ioport_ops,
[7] = &iomem_ops
};
/* Returns 0 for success, otherwise, returns number of bytes not transferred. */
-unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
+static unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
{
register unsigned long src, dst, t1, t2, t3;
register unsigned char *pcs, *pcd;
}
#endif
+int fixup_exception(struct pt_regs *regs)
+{
+ const struct exception_table_entry *fix;
+
+ fix = search_exception_tables(regs->iaoq[0]);
+ if (fix) {
+ struct exception_data *d;
+ d = &__get_cpu_var(exception_data);
+ d->fault_ip = regs->iaoq[0];
+ d->fault_space = regs->isr;
+ d->fault_addr = regs->ior;
+
+ regs->iaoq[0] = ((fix->fixup) & ~3);
+ /*
+ * NOTE: In some cases the faulting instruction
+ * may be in the delay slot of a branch. We
+ * don't want to take the branch, so we don't
+ * increment iaoq[1], instead we set it to be
+ * iaoq[0]+4, and clear the B bit in the PSW
+ */
+ regs->iaoq[1] = regs->iaoq[0] + 4;
+ regs->gr[0] &= ~PSW_B; /* IPSW in gr[0] */
+
+ return 1;
+ }
+
+ return 0;
+}
+
void do_page_fault(struct pt_regs *regs, unsigned long code,
unsigned long address)
{
struct vm_area_struct *vma, *prev_vma;
struct task_struct *tsk = current;
struct mm_struct *mm = tsk->mm;
- const struct exception_table_entry *fix;
unsigned long acc_type;
int fault;
no_context:
- if (!user_mode(regs)) {
- fix = search_exception_tables(regs->iaoq[0]);
-
- if (fix) {
- struct exception_data *d;
-
- d = &__get_cpu_var(exception_data);
- d->fault_ip = regs->iaoq[0];
- d->fault_space = regs->isr;
- d->fault_addr = regs->ior;
-
- regs->iaoq[0] = ((fix->fixup) & ~3);
-
- /*
- * NOTE: In some cases the faulting instruction
- * may be in the delay slot of a branch. We
- * don't want to take the branch, so we don't
- * increment iaoq[1], instead we set it to be
- * iaoq[0]+4, and clear the B bit in the PSW
- */
-
- regs->iaoq[1] = regs->iaoq[0] + 4;
- regs->gr[0] &= ~PSW_B; /* IPSW in gr[0] */
-
- return;
- }
+ if (!user_mode(regs) && fixup_exception(regs)) {
+ return;
}
parisc_terminate("Bad Address (null pointer deref?)", regs, code, address);
#define CBE_PM_STOP_AT_MAX 0x40000000
#define CBE_PM_TRACE_MODE_GET(pm_control) (((pm_control) >> 28) & 0x3)
#define CBE_PM_TRACE_MODE_SET(mode) (((mode) & 0x3) << 28)
+#define CBE_PM_TRACE_BUF_OVFLW(bit) (((bit) & 0x1) << 17)
#define CBE_PM_COUNT_MODE_SET(count) (((count) & 0x3) << 18)
#define CBE_PM_FREEZE_ALL_CTRS 0x00100000
#define CBE_PM_ENABLE_EXT_TRACE 0x00008000
+#define CBE_PM_SPU_ADDR_TRACE_SET(msk) (((msk) & 0x3) << 9)
/* Macros for the trace_address register. */
#define CBE_PM_TRACE_BUF_FULL 0x00000800
unsigned long mmcr0;
unsigned long mmcr1;
unsigned long mmcra;
+#ifdef CONFIG_OPROFILE_CELL
+ /* Register for oprofile user tool to check cell kernel profiling
+ * suport.
+ */
+ unsigned long cell_support;
+#endif
#endif
unsigned long enable_kernel;
unsigned long enable_user;
extern struct delayed_work spu_work;
extern int spu_prof_running;
+#define TRACE_ARRAY_SIZE 1024
+
+extern spinlock_t oprof_spu_smpl_arry_lck;
+
struct spu_overlay_info { /* map of sections within an SPU overlay */
unsigned int vma; /* SPU virtual memory address from elf */
unsigned int size; /* size of section from elf */
* Entry point for SPU profiling.
* cycles_reset is the SPU_CYCLES count value specified by the user.
*/
-int start_spu_profiling(unsigned int cycles_reset);
-
-void stop_spu_profiling(void);
+int start_spu_profiling_cycles(unsigned int cycles_reset);
+void start_spu_profiling_events(void);
+void stop_spu_profiling_cycles(void);
+void stop_spu_profiling_events(void);
/* add the necessary profiling hooks */
int spu_sync_start(void);
#include <asm/cell-pmu.h>
#include "pr_util.h"
-#define TRACE_ARRAY_SIZE 1024
#define SCALE_SHIFT 14
static u32 *samples;
+/* spu_prof_running is a flag used to indicate if spu profiling is enabled
+ * or not. It is set by the routines start_spu_profiling_cycles() and
+ * start_spu_profiling_events(). The flag is cleared by the routines
+ * stop_spu_profiling_cycles() and stop_spu_profiling_events(). These
+ * routines are called via global_start() and global_stop() which are called in
+ * op_powerpc_start() and op_powerpc_stop(). These routines are called once
+ * per system as a result of the user starting/stopping oprofile. Hence, only
+ * one CPU per user at a time will be changing the value of spu_prof_running.
+ * In general, OProfile does not protect against multiple users trying to run
+ * OProfile at a time.
+ */
int spu_prof_running;
static unsigned int profiling_interval;
#define SPU_PC_MASK 0xFFFF
-static DEFINE_SPINLOCK(sample_array_lock);
-unsigned long sample_array_lock_flags;
+DEFINE_SPINLOCK(oprof_spu_smpl_arry_lck);
+unsigned long oprof_spu_smpl_arry_lck_flags;
void set_spu_profiling_frequency(unsigned int freq_khz, unsigned int cycles_reset)
{
* sample array must be loaded and then processed for a given
* cpu. The sample array is not per cpu.
*/
- spin_lock_irqsave(&sample_array_lock,
- sample_array_lock_flags);
+ spin_lock_irqsave(&oprof_spu_smpl_arry_lck,
+ oprof_spu_smpl_arry_lck_flags);
num_samples = cell_spu_pc_collection(cpu);
if (num_samples == 0) {
- spin_unlock_irqrestore(&sample_array_lock,
- sample_array_lock_flags);
+ spin_unlock_irqrestore(&oprof_spu_smpl_arry_lck,
+ oprof_spu_smpl_arry_lck_flags);
continue;
}
num_samples);
}
- spin_unlock_irqrestore(&sample_array_lock,
- sample_array_lock_flags);
+ spin_unlock_irqrestore(&oprof_spu_smpl_arry_lck,
+ oprof_spu_smpl_arry_lck_flags);
}
smp_wmb(); /* insure spu event buffer updates are written */
static struct hrtimer timer;
/*
- * Entry point for SPU profiling.
+ * Entry point for SPU cycle profiling.
* NOTE: SPU profiling is done system-wide, not per-CPU.
*
* cycles_reset is the count value specified by the user when
* setting up OProfile to count SPU_CYCLES.
*/
-int start_spu_profiling(unsigned int cycles_reset)
+int start_spu_profiling_cycles(unsigned int cycles_reset)
{
ktime_t kt;
return 0;
}
-void stop_spu_profiling(void)
+/*
+ * Entry point for SPU event profiling.
+ * NOTE: SPU profiling is done system-wide, not per-CPU.
+ *
+ * cycles_reset is the count value specified by the user when
+ * setting up OProfile to count SPU_CYCLES.
+ */
+void start_spu_profiling_events(void)
+{
+ spu_prof_running = 1;
+ schedule_delayed_work(&spu_work, DEFAULT_TIMER_EXPIRE);
+
+ return;
+}
+
+void stop_spu_profiling_cycles(void)
{
spu_prof_running = 0;
hrtimer_cancel(&timer);
kfree(samples);
- pr_debug("SPU_PROF: stop_spu_profiling issued\n");
+ pr_debug("SPU_PROF: stop_spu_profiling_cycles issued\n");
+}
+
+void stop_spu_profiling_events(void)
+{
+ spu_prof_running = 0;
}
oprofilefs_create_ulong(sb, root, "mmcr0", &sys.mmcr0);
oprofilefs_create_ulong(sb, root, "mmcr1", &sys.mmcr1);
oprofilefs_create_ulong(sb, root, "mmcra", &sys.mmcra);
+#ifdef CONFIG_OPROFILE_CELL
+ /* create a file the user tool can check to see what level of profiling
+ * support exits with this kernel. Initialize bit mask to indicate
+ * what support the kernel has:
+ * bit 0 - Supports SPU event profiling in addition to PPU
+ * event and cycles; and SPU cycle profiling
+ * bits 1-31 - Currently unused.
+ *
+ * If the file does not exist, then the kernel only supports SPU
+ * cycle profiling, PPU event and cycle profiling.
+ */
+ oprofilefs_create_ulong(sb, root, "cell_support", &sys.cell_support);
+ sys.cell_support = 0x1; /* Note, the user OProfile tool must check
+ * that this bit is set before attempting to
+ * user SPU event profiling. Older kernels
+ * will not have this file, hence the user
+ * tool is not allowed to do SPU event
+ * profiling on older kernels. Older kernels
+ * will accept SPU events but collected data
+ * is garbage.
+ */
+#endif
#endif
for (i = 0; i < model->num_counters; ++i) {
#include "../platforms/cell/interrupt.h"
#include "cell/pr_util.h"
-static void cell_global_stop_spu(void);
+#define PPU_PROFILING 0
+#define SPU_PROFILING_CYCLES 1
+#define SPU_PROFILING_EVENTS 2
-/*
- * spu_cycle_reset is the number of cycles between samples.
- * This variable is used for SPU profiling and should ONLY be set
- * at the beginning of cell_reg_setup; otherwise, it's read-only.
- */
-static unsigned int spu_cycle_reset;
+#define SPU_EVENT_NUM_START 4100
+#define SPU_EVENT_NUM_STOP 4399
+#define SPU_PROFILE_EVENT_ADDR 4363 /* spu, address trace, decimal */
+#define SPU_PROFILE_EVENT_ADDR_MASK_A 0x146 /* sub unit set to zero */
+#define SPU_PROFILE_EVENT_ADDR_MASK_B 0x186 /* sub unit set to zero */
#define NUM_SPUS_PER_NODE 8
#define SPU_CYCLES_EVENT_NUM 2 /* event number for SPU_CYCLES */
#define MAX_SPU_COUNT 0xFFFFFF /* maximum 24 bit LFSR value */
+/* Minumum HW interval timer setting to send value to trace buffer is 10 cycle.
+ * To configure counter to send value every N cycles set counter to
+ * 2^32 - 1 - N.
+ */
+#define NUM_INTERVAL_CYC 0xFFFFFFFF - 10
+
+/*
+ * spu_cycle_reset is the number of cycles between samples.
+ * This variable is used for SPU profiling and should ONLY be set
+ * at the beginning of cell_reg_setup; otherwise, it's read-only.
+ */
+static unsigned int spu_cycle_reset;
+static unsigned int profiling_mode;
+static int spu_evnt_phys_spu_indx;
+
struct pmc_cntrl_data {
unsigned long vcntr;
unsigned long evnts;
u16 trace_mode;
u16 freeze;
u16 count_mode;
+ u16 spu_addr_trace;
+ u8 trace_buf_ovflw;
};
static struct {
#define GET_INPUT_CONTROL(x) ((x & 0x00000004) >> 2)
static DEFINE_PER_CPU(unsigned long[NR_PHYS_CTRS], pmc_values);
-
+static unsigned long spu_pm_cnt[MAX_NUMNODES * NUM_SPUS_PER_NODE];
static struct pmc_cntrl_data pmc_cntrl[NUM_THREADS][NR_PHYS_CTRS];
/*
static u32 virt_cntr_inter_mask;
static struct timer_list timer_virt_cntr;
+static struct timer_list timer_spu_event_swap;
/*
* pm_signal needs to be global since it is initialized in
static u32 reset_value[NR_PHYS_CTRS];
static int num_counters;
static int oprofile_running;
-static DEFINE_SPINLOCK(virt_cntr_lock);
+static DEFINE_SPINLOCK(cntr_lock);
static u32 ctr_enabled;
for (i = 0; i < NUM_DEBUG_BUS_WORDS; i++) {
if (bus_word & (1 << i)) {
pm_regs.debug_bus_control |=
- (bus_type << (30 - (2 * i)));
+ (bus_type << (30 - (2 * i)));
for (j = 0; j < NUM_INPUT_BUS_WORDS; j++) {
if (input_bus[j] == 0xff) {
input_bus[j] = i;
pm_regs.group_control |=
- (i << (30 - (2 * j)));
+ (i << (30 - (2 * j)));
break;
}
if (pm_regs.pm_cntrl.stop_at_max == 1)
val |= CBE_PM_STOP_AT_MAX;
- if (pm_regs.pm_cntrl.trace_mode == 1)
+ if (pm_regs.pm_cntrl.trace_mode != 0)
val |= CBE_PM_TRACE_MODE_SET(pm_regs.pm_cntrl.trace_mode);
+ if (pm_regs.pm_cntrl.trace_buf_ovflw == 1)
+ val |= CBE_PM_TRACE_BUF_OVFLW(pm_regs.pm_cntrl.trace_buf_ovflw);
if (pm_regs.pm_cntrl.freeze == 1)
val |= CBE_PM_FREEZE_ALL_CTRS;
+ val |= CBE_PM_SPU_ADDR_TRACE_SET(pm_regs.pm_cntrl.spu_addr_trace);
+
/*
* Routine set_count_mode must be called previously to set
* the count mode based on the user selection of user and kernel.
* not both playing with the counters on the same node.
*/
- spin_lock_irqsave(&virt_cntr_lock, flags);
+ spin_lock_irqsave(&cntr_lock, flags);
prev_hdw_thread = hdw_thread;
cbe_disable_pm_interrupts(cpu);
for (i = 0; i < num_counters; i++) {
per_cpu(pmc_values, cpu + prev_hdw_thread)[i]
- = cbe_read_ctr(cpu, i);
+ = cbe_read_ctr(cpu, i);
if (per_cpu(pmc_values, cpu + next_hdw_thread)[i]
== 0xFFFFFFFF)
cbe_enable_pm(cpu);
}
- spin_unlock_irqrestore(&virt_cntr_lock, flags);
+ spin_unlock_irqrestore(&cntr_lock, flags);
mod_timer(&timer_virt_cntr, jiffies + HZ / 10);
}
add_timer(&timer_virt_cntr);
}
-/* This function is called once for all cpus combined */
-static int cell_reg_setup(struct op_counter_config *ctr,
+static int cell_reg_setup_spu_cycles(struct op_counter_config *ctr,
struct op_system_config *sys, int num_ctrs)
{
- int i, j, cpu;
- spu_cycle_reset = 0;
+ spu_cycle_reset = ctr[0].count;
- if (ctr[0].event == SPU_CYCLES_EVENT_NUM) {
- spu_cycle_reset = ctr[0].count;
+ /*
+ * Each node will need to make the rtas call to start
+ * and stop SPU profiling. Get the token once and store it.
+ */
+ spu_rtas_token = rtas_token("ibm,cbe-spu-perftools");
+
+ if (unlikely(spu_rtas_token == RTAS_UNKNOWN_SERVICE)) {
+ printk(KERN_ERR
+ "%s: rtas token ibm,cbe-spu-perftools unknown\n",
+ __func__);
+ return -EIO;
+ }
+ return 0;
+}
+
+/* Unfortunately, the hardware will only support event profiling
+ * on one SPU per node at a time. Therefore, we must time slice
+ * the profiling across all SPUs in the node. Note, we do this
+ * in parallel for each node. The following routine is called
+ * periodically based on kernel timer to switch which SPU is
+ * being monitored in a round robbin fashion.
+ */
+static void spu_evnt_swap(unsigned long data)
+{
+ int node;
+ int cur_phys_spu, nxt_phys_spu, cur_spu_evnt_phys_spu_indx;
+ unsigned long flags;
+ int cpu;
+ int ret;
+ u32 interrupt_mask;
+
+
+ /* enable interrupts on cntr 0 */
+ interrupt_mask = CBE_PM_CTR_OVERFLOW_INTR(0);
+
+ hdw_thread = 0;
+
+ /* Make sure spu event interrupt handler and spu event swap
+ * don't access the counters simultaneously.
+ */
+ spin_lock_irqsave(&cntr_lock, flags);
+
+ cur_spu_evnt_phys_spu_indx = spu_evnt_phys_spu_indx;
+
+ if (++(spu_evnt_phys_spu_indx) == NUM_SPUS_PER_NODE)
+ spu_evnt_phys_spu_indx = 0;
+
+ pm_signal[0].sub_unit = spu_evnt_phys_spu_indx;
+ pm_signal[1].sub_unit = spu_evnt_phys_spu_indx;
+ pm_signal[2].sub_unit = spu_evnt_phys_spu_indx;
+
+ /* switch the SPU being profiled on each node */
+ for_each_online_cpu(cpu) {
+ if (cbe_get_hw_thread_id(cpu))
+ continue;
+
+ node = cbe_cpu_to_node(cpu);
+ cur_phys_spu = (node * NUM_SPUS_PER_NODE)
+ + cur_spu_evnt_phys_spu_indx;
+ nxt_phys_spu = (node * NUM_SPUS_PER_NODE)
+ + spu_evnt_phys_spu_indx;
/*
- * Each node will need to make the rtas call to start
- * and stop SPU profiling. Get the token once and store it.
+ * stop counters, save counter values, restore counts
+ * for previous physical SPU
*/
- spu_rtas_token = rtas_token("ibm,cbe-spu-perftools");
+ cbe_disable_pm(cpu);
+ cbe_disable_pm_interrupts(cpu);
- if (unlikely(spu_rtas_token == RTAS_UNKNOWN_SERVICE)) {
- printk(KERN_ERR
- "%s: rtas token ibm,cbe-spu-perftools unknown\n",
- __func__);
- return -EIO;
- }
+ spu_pm_cnt[cur_phys_spu]
+ = cbe_read_ctr(cpu, 0);
+
+ /* restore previous count for the next spu to sample */
+ /* NOTE, hardware issue, counter will not start if the
+ * counter value is at max (0xFFFFFFFF).
+ */
+ if (spu_pm_cnt[nxt_phys_spu] >= 0xFFFFFFFF)
+ cbe_write_ctr(cpu, 0, 0xFFFFFFF0);
+ else
+ cbe_write_ctr(cpu, 0, spu_pm_cnt[nxt_phys_spu]);
+
+ pm_rtas_reset_signals(cbe_cpu_to_node(cpu));
+
+ /* setup the debug bus measure the one event and
+ * the two events to route the next SPU's PC on
+ * the debug bus
+ */
+ ret = pm_rtas_activate_signals(cbe_cpu_to_node(cpu), 3);
+ if (ret)
+ printk(KERN_ERR "%s: pm_rtas_activate_signals failed, "
+ "SPU event swap\n", __func__);
+
+ /* clear the trace buffer, don't want to take PC for
+ * previous SPU*/
+ cbe_write_pm(cpu, trace_address, 0);
+
+ enable_ctr(cpu, 0, pm_regs.pm07_cntrl);
+
+ /* Enable interrupts on the CPU thread that is starting */
+ cbe_enable_pm_interrupts(cpu, hdw_thread,
+ interrupt_mask);
+ cbe_enable_pm(cpu);
}
- pm_rtas_token = rtas_token("ibm,cbe-perftools");
+ spin_unlock_irqrestore(&cntr_lock, flags);
+ /* swap approximately every 0.1 seconds */
+ mod_timer(&timer_spu_event_swap, jiffies + HZ / 25);
+}
+
+static void start_spu_event_swap(void)
+{
+ init_timer(&timer_spu_event_swap);
+ timer_spu_event_swap.function = spu_evnt_swap;
+ timer_spu_event_swap.data = 0UL;
+ timer_spu_event_swap.expires = jiffies + HZ / 25;
+ add_timer(&timer_spu_event_swap);
+}
+
+static int cell_reg_setup_spu_events(struct op_counter_config *ctr,
+ struct op_system_config *sys, int num_ctrs)
+{
+ int i;
+
+ /* routine is called once for all nodes */
+
+ spu_evnt_phys_spu_indx = 0;
/*
- * For all events excetp PPU CYCLEs, each node will need to make
+ * For all events except PPU CYCLEs, each node will need to make
* the rtas cbe-perftools call to setup and reset the debug bus.
* Make the token lookup call once and store it in the global
* variable pm_rtas_token.
*/
+ pm_rtas_token = rtas_token("ibm,cbe-perftools");
+
if (unlikely(pm_rtas_token == RTAS_UNKNOWN_SERVICE)) {
printk(KERN_ERR
"%s: rtas token ibm,cbe-perftools unknown\n",
return -EIO;
}
+ /* setup the pm_control register settings,
+ * settings will be written per node by the
+ * cell_cpu_setup() function.
+ */
+ pm_regs.pm_cntrl.trace_buf_ovflw = 1;
+
+ /* Use the occurrence trace mode to have SPU PC saved
+ * to the trace buffer. Occurrence data in trace buffer
+ * is not used. Bit 2 must be set to store SPU addresses.
+ */
+ pm_regs.pm_cntrl.trace_mode = 2;
+
+ pm_regs.pm_cntrl.spu_addr_trace = 0x1; /* using debug bus
+ event 2 & 3 */
+
+ /* setup the debug bus event array with the SPU PC routing events.
+ * Note, pm_signal[0] will be filled in by set_pm_event() call below.
+ */
+ pm_signal[1].signal_group = SPU_PROFILE_EVENT_ADDR / 100;
+ pm_signal[1].bus_word = GET_BUS_WORD(SPU_PROFILE_EVENT_ADDR_MASK_A);
+ pm_signal[1].bit = SPU_PROFILE_EVENT_ADDR % 100;
+ pm_signal[1].sub_unit = spu_evnt_phys_spu_indx;
+
+ pm_signal[2].signal_group = SPU_PROFILE_EVENT_ADDR / 100;
+ pm_signal[2].bus_word = GET_BUS_WORD(SPU_PROFILE_EVENT_ADDR_MASK_B);
+ pm_signal[2].bit = SPU_PROFILE_EVENT_ADDR % 100;
+ pm_signal[2].sub_unit = spu_evnt_phys_spu_indx;
+
+ /* Set the user selected spu event to profile on,
+ * note, only one SPU profiling event is supported
+ */
+ num_counters = 1; /* Only support one SPU event at a time */
+ set_pm_event(0, ctr[0].event, ctr[0].unit_mask);
+
+ reset_value[0] = 0xFFFFFFFF - ctr[0].count;
+
+ /* global, used by cell_cpu_setup */
+ ctr_enabled |= 1;
+
+ /* Initialize the count for each SPU to the reset value */
+ for (i=0; i < MAX_NUMNODES * NUM_SPUS_PER_NODE; i++)
+ spu_pm_cnt[i] = reset_value[0];
+
+ return 0;
+}
+
+static int cell_reg_setup_ppu(struct op_counter_config *ctr,
+ struct op_system_config *sys, int num_ctrs)
+{
+ /* routine is called once for all nodes */
+ int i, j, cpu;
+
num_counters = num_ctrs;
if (unlikely(num_ctrs > NR_PHYS_CTRS)) {
__func__);
return -EIO;
}
- pm_regs.group_control = 0;
- pm_regs.debug_bus_control = 0;
-
- /* setup the pm_control register */
- memset(&pm_regs.pm_cntrl, 0, sizeof(struct pm_cntrl));
- pm_regs.pm_cntrl.stop_at_max = 1;
- pm_regs.pm_cntrl.trace_mode = 0;
- pm_regs.pm_cntrl.freeze = 1;
set_count_mode(sys->enable_kernel, sys->enable_user);
}
+/* This function is called once for all cpus combined */
+static int cell_reg_setup(struct op_counter_config *ctr,
+ struct op_system_config *sys, int num_ctrs)
+{
+ int ret=0;
+ spu_cycle_reset = 0;
+
+ /* initialize the spu_arr_trace value, will be reset if
+ * doing spu event profiling.
+ */
+ pm_regs.group_control = 0;
+ pm_regs.debug_bus_control = 0;
+ pm_regs.pm_cntrl.stop_at_max = 1;
+ pm_regs.pm_cntrl.trace_mode = 0;
+ pm_regs.pm_cntrl.freeze = 1;
+ pm_regs.pm_cntrl.trace_buf_ovflw = 0;
+ pm_regs.pm_cntrl.spu_addr_trace = 0;
+
+ /*
+ * For all events except PPU CYCLEs, each node will need to make
+ * the rtas cbe-perftools call to setup and reset the debug bus.
+ * Make the token lookup call once and store it in the global
+ * variable pm_rtas_token.
+ */
+ pm_rtas_token = rtas_token("ibm,cbe-perftools");
+
+ if (unlikely(pm_rtas_token == RTAS_UNKNOWN_SERVICE)) {
+ printk(KERN_ERR
+ "%s: rtas token ibm,cbe-perftools unknown\n",
+ __func__);
+ return -EIO;
+ }
+
+ if (ctr[0].event == SPU_CYCLES_EVENT_NUM) {
+ profiling_mode = SPU_PROFILING_CYCLES;
+ ret = cell_reg_setup_spu_cycles(ctr, sys, num_ctrs);
+ } else if ((ctr[0].event >= SPU_EVENT_NUM_START) &&
+ (ctr[0].event <= SPU_EVENT_NUM_STOP)) {
+ profiling_mode = SPU_PROFILING_EVENTS;
+ spu_cycle_reset = ctr[0].count;
+
+ /* for SPU event profiling, need to setup the
+ * pm_signal array with the events to route the
+ * SPU PC before making the FW call. Note, only
+ * one SPU event for profiling can be specified
+ * at a time.
+ */
+ cell_reg_setup_spu_events(ctr, sys, num_ctrs);
+ } else {
+ profiling_mode = PPU_PROFILING;
+ ret = cell_reg_setup_ppu(ctr, sys, num_ctrs);
+ }
+
+ return ret;
+}
+
+
/* This function is called once for each cpu */
static int cell_cpu_setup(struct op_counter_config *cntr)
u32 cpu = smp_processor_id();
u32 num_enabled = 0;
int i;
+ int ret;
- if (spu_cycle_reset)
+ /* Cycle based SPU profiling does not use the performance
+ * counters. The trace array is configured to collect
+ * the data.
+ */
+ if (profiling_mode == SPU_PROFILING_CYCLES)
return 0;
/* There is one performance monitor per processor chip (i.e. node),
cbe_disable_pm(cpu);
cbe_disable_pm_interrupts(cpu);
- cbe_write_pm(cpu, pm_interval, 0);
cbe_write_pm(cpu, pm_start_stop, 0);
cbe_write_pm(cpu, group_control, pm_regs.group_control);
cbe_write_pm(cpu, debug_bus_control, pm_regs.debug_bus_control);
* The pm_rtas_activate_signals will return -EIO if the FW
* call failed.
*/
- return pm_rtas_activate_signals(cbe_cpu_to_node(cpu), num_enabled);
+ if (profiling_mode == SPU_PROFILING_EVENTS) {
+ /* For SPU event profiling also need to setup the
+ * pm interval timer
+ */
+ ret = pm_rtas_activate_signals(cbe_cpu_to_node(cpu),
+ num_enabled+2);
+ /* store PC from debug bus to Trace buffer as often
+ * as possible (every 10 cycles)
+ */
+ cbe_write_pm(cpu, pm_interval, NUM_INTERVAL_CYC);
+ return ret;
+ } else
+ return pm_rtas_activate_signals(cbe_cpu_to_node(cpu),
+ num_enabled);
}
#define ENTRIES 303
};
#endif
-static int cell_global_start_spu(struct op_counter_config *ctr)
+/*
+ * Note the generic OProfile stop calls do not support returning
+ * an error on stop. Hence, will not return an error if the FW
+ * calls fail on stop. Failure to reset the debug bus is not an issue.
+ * Failure to disable the SPU profiling is not an issue. The FW calls
+ * to enable the performance counters and debug bus will work even if
+ * the hardware was not cleanly reset.
+ */
+static void cell_global_stop_spu_cycles(void)
+{
+ int subfunc, rtn_value;
+ unsigned int lfsr_value;
+ int cpu;
+
+ oprofile_running = 0;
+ smp_wmb();
+
+#ifdef CONFIG_CPU_FREQ
+ cpufreq_unregister_notifier(&cpu_freq_notifier_block,
+ CPUFREQ_TRANSITION_NOTIFIER);
+#endif
+
+ for_each_online_cpu(cpu) {
+ if (cbe_get_hw_thread_id(cpu))
+ continue;
+
+ subfunc = 3; /*
+ * 2 - activate SPU tracing,
+ * 3 - deactivate
+ */
+ lfsr_value = 0x8f100000;
+
+ rtn_value = rtas_call(spu_rtas_token, 3, 1, NULL,
+ subfunc, cbe_cpu_to_node(cpu),
+ lfsr_value);
+
+ if (unlikely(rtn_value != 0)) {
+ printk(KERN_ERR
+ "%s: rtas call ibm,cbe-spu-perftools " \
+ "failed, return = %d\n",
+ __func__, rtn_value);
+ }
+
+ /* Deactivate the signals */
+ pm_rtas_reset_signals(cbe_cpu_to_node(cpu));
+ }
+
+ stop_spu_profiling_cycles();
+}
+
+static void cell_global_stop_spu_events(void)
+{
+ int cpu;
+ oprofile_running = 0;
+
+ stop_spu_profiling_events();
+ smp_wmb();
+
+ for_each_online_cpu(cpu) {
+ if (cbe_get_hw_thread_id(cpu))
+ continue;
+
+ cbe_sync_irq(cbe_cpu_to_node(cpu));
+ /* Stop the counters */
+ cbe_disable_pm(cpu);
+ cbe_write_pm07_control(cpu, 0, 0);
+
+ /* Deactivate the signals */
+ pm_rtas_reset_signals(cbe_cpu_to_node(cpu));
+
+ /* Deactivate interrupts */
+ cbe_disable_pm_interrupts(cpu);
+ }
+ del_timer_sync(&timer_spu_event_swap);
+}
+
+static void cell_global_stop_ppu(void)
+{
+ int cpu;
+
+ /*
+ * This routine will be called once for the system.
+ * There is one performance monitor per node, so we
+ * only need to perform this function once per node.
+ */
+ del_timer_sync(&timer_virt_cntr);
+ oprofile_running = 0;
+ smp_wmb();
+
+ for_each_online_cpu(cpu) {
+ if (cbe_get_hw_thread_id(cpu))
+ continue;
+
+ cbe_sync_irq(cbe_cpu_to_node(cpu));
+ /* Stop the counters */
+ cbe_disable_pm(cpu);
+
+ /* Deactivate the signals */
+ pm_rtas_reset_signals(cbe_cpu_to_node(cpu));
+
+ /* Deactivate interrupts */
+ cbe_disable_pm_interrupts(cpu);
+ }
+}
+
+static void cell_global_stop(void)
+{
+ if (profiling_mode == PPU_PROFILING)
+ cell_global_stop_ppu();
+ else if (profiling_mode == SPU_PROFILING_EVENTS)
+ cell_global_stop_spu_events();
+ else
+ cell_global_stop_spu_cycles();
+}
+
+static int cell_global_start_spu_cycles(struct op_counter_config *ctr)
{
int subfunc;
unsigned int lfsr_value;
/* start profiling */
ret = rtas_call(spu_rtas_token, 3, 1, NULL, subfunc,
- cbe_cpu_to_node(cpu), lfsr_value);
+ cbe_cpu_to_node(cpu), lfsr_value);
if (unlikely(ret != 0)) {
printk(KERN_ERR
- "%s: rtas call ibm,cbe-spu-perftools failed, return = %d\n",
- __func__, ret);
+ "%s: rtas call ibm,cbe-spu-perftools failed, " \
+ "return = %d\n", __func__, ret);
rtas_error = -EIO;
goto out;
}
}
- rtas_error = start_spu_profiling(spu_cycle_reset);
+ rtas_error = start_spu_profiling_cycles(spu_cycle_reset);
if (rtas_error)
goto out_stop;
return 0;
out_stop:
- cell_global_stop_spu(); /* clean up the PMU/debug bus */
+ cell_global_stop_spu_cycles(); /* clean up the PMU/debug bus */
out:
return rtas_error;
}
+static int cell_global_start_spu_events(struct op_counter_config *ctr)
+{
+ int cpu;
+ u32 interrupt_mask = 0;
+ int rtn = 0;
+
+ hdw_thread = 0;
+
+ /* spu event profiling, uses the performance counters to generate
+ * an interrupt. The hardware is setup to store the SPU program
+ * counter into the trace array. The occurrence mode is used to
+ * enable storing data to the trace buffer. The bits are set
+ * to send/store the SPU address in the trace buffer. The debug
+ * bus must be setup to route the SPU program counter onto the
+ * debug bus. The occurrence data in the trace buffer is not used.
+ */
+
+ /* This routine gets called once for the system.
+ * There is one performance monitor per node, so we
+ * only need to perform this function once per node.
+ */
+
+ for_each_online_cpu(cpu) {
+ if (cbe_get_hw_thread_id(cpu))
+ continue;
+
+ /*
+ * Setup SPU event-based profiling.
+ * Set perf_mon_control bit 0 to a zero before
+ * enabling spu collection hardware.
+ *
+ * Only support one SPU event on one SPU per node.
+ */
+ if (ctr_enabled & 1) {
+ cbe_write_ctr(cpu, 0, reset_value[0]);
+ enable_ctr(cpu, 0, pm_regs.pm07_cntrl);
+ interrupt_mask |=
+ CBE_PM_CTR_OVERFLOW_INTR(0);
+ } else {
+ /* Disable counter */
+ cbe_write_pm07_control(cpu, 0, 0);
+ }
+
+ cbe_get_and_clear_pm_interrupts(cpu);
+ cbe_enable_pm_interrupts(cpu, hdw_thread, interrupt_mask);
+ cbe_enable_pm(cpu);
+
+ /* clear the trace buffer */
+ cbe_write_pm(cpu, trace_address, 0);
+ }
+
+ /* Start the timer to time slice collecting the event profile
+ * on each of the SPUs. Note, can collect profile on one SPU
+ * per node at a time.
+ */
+ start_spu_event_swap();
+ start_spu_profiling_events();
+ oprofile_running = 1;
+ smp_wmb();
+
+ return rtn;
+}
+
static int cell_global_start_ppu(struct op_counter_config *ctr)
{
u32 cpu, i;
if (ctr_enabled & (1 << i)) {
cbe_write_ctr(cpu, i, reset_value[i]);
enable_ctr(cpu, i, pm_regs.pm07_cntrl);
- interrupt_mask |=
- CBE_PM_CTR_OVERFLOW_INTR(i);
+ interrupt_mask |= CBE_PM_CTR_OVERFLOW_INTR(i);
} else {
/* Disable counter */
cbe_write_pm07_control(cpu, i, 0);
static int cell_global_start(struct op_counter_config *ctr)
{
- if (spu_cycle_reset)
- return cell_global_start_spu(ctr);
+ if (profiling_mode == SPU_PROFILING_CYCLES)
+ return cell_global_start_spu_cycles(ctr);
+ else if (profiling_mode == SPU_PROFILING_EVENTS)
+ return cell_global_start_spu_events(ctr);
else
return cell_global_start_ppu(ctr);
}
-/*
- * Note the generic OProfile stop calls do not support returning
- * an error on stop. Hence, will not return an error if the FW
- * calls fail on stop. Failure to reset the debug bus is not an issue.
- * Failure to disable the SPU profiling is not an issue. The FW calls
- * to enable the performance counters and debug bus will work even if
- * the hardware was not cleanly reset.
+
+/* The SPU interrupt handler
+ *
+ * SPU event profiling works as follows:
+ * The pm_signal[0] holds the one SPU event to be measured. It is routed on
+ * the debug bus using word 0 or 1. The value of pm_signal[1] and
+ * pm_signal[2] contain the necessary events to route the SPU program
+ * counter for the selected SPU onto the debug bus using words 2 and 3.
+ * The pm_interval register is setup to write the SPU PC value into the
+ * trace buffer at the maximum rate possible. The trace buffer is configured
+ * to store the PCs, wrapping when it is full. The performance counter is
+ * intialized to the max hardware count minus the number of events, N, between
+ * samples. Once the N events have occured, a HW counter overflow occurs
+ * causing the generation of a HW counter interrupt which also stops the
+ * writing of the SPU PC values to the trace buffer. Hence the last PC
+ * written to the trace buffer is the SPU PC that we want. Unfortunately,
+ * we have to read from the beginning of the trace buffer to get to the
+ * last value written. We just hope the PPU has nothing better to do then
+ * service this interrupt. The PC for the specific SPU being profiled is
+ * extracted from the trace buffer processed and stored. The trace buffer
+ * is cleared, interrupts are cleared, the counter is reset to max - N.
+ * A kernel timer is used to periodically call the routine spu_evnt_swap()
+ * to switch to the next physical SPU in the node to profile in round robbin
+ * order. This way data is collected for all SPUs on the node. It does mean
+ * that we need to use a relatively small value of N to ensure enough samples
+ * on each SPU are collected each SPU is being profiled 1/8 of the time.
+ * It may also be necessary to use a longer sample collection period.
*/
-static void cell_global_stop_spu(void)
+static void cell_handle_interrupt_spu(struct pt_regs *regs,
+ struct op_counter_config *ctr)
{
- int subfunc, rtn_value;
- unsigned int lfsr_value;
- int cpu;
+ u32 cpu, cpu_tmp;
+ u64 trace_entry;
+ u32 interrupt_mask;
+ u64 trace_buffer[2];
+ u64 last_trace_buffer;
+ u32 sample;
+ u32 trace_addr;
+ unsigned long sample_array_lock_flags;
+ int spu_num;
+ unsigned long flags;
- oprofile_running = 0;
+ /* Make sure spu event interrupt handler and spu event swap
+ * don't access the counters simultaneously.
+ */
+ cpu = smp_processor_id();
+ spin_lock_irqsave(&cntr_lock, flags);
-#ifdef CONFIG_CPU_FREQ
- cpufreq_unregister_notifier(&cpu_freq_notifier_block,
- CPUFREQ_TRANSITION_NOTIFIER);
-#endif
+ cpu_tmp = cpu;
+ cbe_disable_pm(cpu);
- for_each_online_cpu(cpu) {
- if (cbe_get_hw_thread_id(cpu))
- continue;
+ interrupt_mask = cbe_get_and_clear_pm_interrupts(cpu);
- subfunc = 3; /*
- * 2 - activate SPU tracing,
- * 3 - deactivate
- */
- lfsr_value = 0x8f100000;
+ sample = 0xABCDEF;
+ trace_entry = 0xfedcba;
+ last_trace_buffer = 0xdeadbeaf;
- rtn_value = rtas_call(spu_rtas_token, 3, 1, NULL,
- subfunc, cbe_cpu_to_node(cpu),
- lfsr_value);
+ if ((oprofile_running == 1) && (interrupt_mask != 0)) {
+ /* disable writes to trace buff */
+ cbe_write_pm(cpu, pm_interval, 0);
- if (unlikely(rtn_value != 0)) {
- printk(KERN_ERR
- "%s: rtas call ibm,cbe-spu-perftools failed, return = %d\n",
- __func__, rtn_value);
+ /* only have one perf cntr being used, cntr 0 */
+ if ((interrupt_mask & CBE_PM_CTR_OVERFLOW_INTR(0))
+ && ctr[0].enabled)
+ /* The SPU PC values will be read
+ * from the trace buffer, reset counter
+ */
+
+ cbe_write_ctr(cpu, 0, reset_value[0]);
+
+ trace_addr = cbe_read_pm(cpu, trace_address);
+
+ while (!(trace_addr & CBE_PM_TRACE_BUF_EMPTY)) {
+ /* There is data in the trace buffer to process
+ * Read the buffer until you get to the last
+ * entry. This is the value we want.
+ */
+
+ cbe_read_trace_buffer(cpu, trace_buffer);
+ trace_addr = cbe_read_pm(cpu, trace_address);
}
- /* Deactivate the signals */
- pm_rtas_reset_signals(cbe_cpu_to_node(cpu));
- }
+ /* SPU Address 16 bit count format for 128 bit
+ * HW trace buffer is used for the SPU PC storage
+ * HDR bits 0:15
+ * SPU Addr 0 bits 16:31
+ * SPU Addr 1 bits 32:47
+ * unused bits 48:127
+ *
+ * HDR: bit4 = 1 SPU Address 0 valid
+ * HDR: bit5 = 1 SPU Address 1 valid
+ * - unfortunately, the valid bits don't seem to work
+ *
+ * Note trace_buffer[0] holds bits 0:63 of the HW
+ * trace buffer, trace_buffer[1] holds bits 64:127
+ */
- stop_spu_profiling();
-}
+ trace_entry = trace_buffer[0]
+ & 0x00000000FFFF0000;
-static void cell_global_stop_ppu(void)
-{
- int cpu;
+ /* only top 16 of the 18 bit SPU PC address
+ * is stored in trace buffer, hence shift right
+ * by 16 -2 bits */
+ sample = trace_entry >> 14;
+ last_trace_buffer = trace_buffer[0];
- /*
- * This routine will be called once for the system.
- * There is one performance monitor per node, so we
- * only need to perform this function once per node.
- */
- del_timer_sync(&timer_virt_cntr);
- oprofile_running = 0;
- smp_wmb();
+ spu_num = spu_evnt_phys_spu_indx
+ + (cbe_cpu_to_node(cpu) * NUM_SPUS_PER_NODE);
- for_each_online_cpu(cpu) {
- if (cbe_get_hw_thread_id(cpu))
- continue;
+ /* make sure only one process at a time is calling
+ * spu_sync_buffer()
+ */
+ spin_lock_irqsave(&oprof_spu_smpl_arry_lck,
+ sample_array_lock_flags);
+ spu_sync_buffer(spu_num, &sample, 1);
+ spin_unlock_irqrestore(&oprof_spu_smpl_arry_lck,
+ sample_array_lock_flags);
- cbe_sync_irq(cbe_cpu_to_node(cpu));
- /* Stop the counters */
- cbe_disable_pm(cpu);
+ smp_wmb(); /* insure spu event buffer updates are written
+ * don't want events intermingled... */
- /* Deactivate the signals */
- pm_rtas_reset_signals(cbe_cpu_to_node(cpu));
+ /* The counters were frozen by the interrupt.
+ * Reenable the interrupt and restart the counters.
+ */
+ cbe_write_pm(cpu, pm_interval, NUM_INTERVAL_CYC);
+ cbe_enable_pm_interrupts(cpu, hdw_thread,
+ virt_cntr_inter_mask);
- /* Deactivate interrupts */
- cbe_disable_pm_interrupts(cpu);
- }
-}
+ /* clear the trace buffer, re-enable writes to trace buff */
+ cbe_write_pm(cpu, trace_address, 0);
+ cbe_write_pm(cpu, pm_interval, NUM_INTERVAL_CYC);
-static void cell_global_stop(void)
-{
- if (spu_cycle_reset)
- cell_global_stop_spu();
- else
- cell_global_stop_ppu();
+ /* The writes to the various performance counters only writes
+ * to a latch. The new values (interrupt setting bits, reset
+ * counter value etc.) are not copied to the actual registers
+ * until the performance monitor is enabled. In order to get
+ * this to work as desired, the permormance monitor needs to
+ * be disabled while writing to the latches. This is a
+ * HW design issue.
+ */
+ write_pm_cntrl(cpu);
+ cbe_enable_pm(cpu);
+ }
+ spin_unlock_irqrestore(&cntr_lock, flags);
}
-static void cell_handle_interrupt(struct pt_regs *regs,
- struct op_counter_config *ctr)
+static void cell_handle_interrupt_ppu(struct pt_regs *regs,
+ struct op_counter_config *ctr)
{
u32 cpu;
u64 pc;
* routine are not running at the same time. See the
* cell_virtual_cntr() routine for additional comments.
*/
- spin_lock_irqsave(&virt_cntr_lock, flags);
+ spin_lock_irqsave(&cntr_lock, flags);
/*
* Need to disable and reenable the performance counters
*/
cbe_enable_pm(cpu);
}
- spin_unlock_irqrestore(&virt_cntr_lock, flags);
+ spin_unlock_irqrestore(&cntr_lock, flags);
+}
+
+static void cell_handle_interrupt(struct pt_regs *regs,
+ struct op_counter_config *ctr)
+{
+ if (profiling_mode == PPU_PROFILING)
+ cell_handle_interrupt_ppu(regs, ctr);
+ else
+ cell_handle_interrupt_spu(regs, ctr);
}
/*
*/
static int cell_sync_start(void)
{
- if (spu_cycle_reset)
+ if ((profiling_mode == SPU_PROFILING_CYCLES) ||
+ (profiling_mode == SPU_PROFILING_EVENTS))
return spu_sync_start();
else
return DO_GENERIC_SYNC;
static int cell_sync_stop(void)
{
- if (spu_cycle_reset)
+ if ((profiling_mode == SPU_PROFILING_CYCLES) ||
+ (profiling_mode == SPU_PROFILING_EVENTS))
return spu_sync_stop();
else
return 1;
return oldbit;
}
-static inline int constant_test_bit(int nr, const volatile unsigned long *addr)
+static inline int constant_test_bit(unsigned int nr, const volatile unsigned long *addr)
{
return ((1UL << (nr % BITS_PER_LONG)) &
(((unsigned long *)addr)[nr / BITS_PER_LONG])) != 0;
#endif
static int __initdata acpi_force = 0;
-
+u32 acpi_rsdt_forced;
#ifdef CONFIG_ACPI
int acpi_disabled = 0;
#else
"Invalid BIOS MADT, disabling ACPI\n");
disable_acpi();
}
+ } else {
+ /*
+ * ACPI found no MADT, and so ACPI wants UP PIC mode.
+ * In the event an MPS table was found, forget it.
+ * Boot with "acpi=off" to use MPS on such a system.
+ */
+ if (smp_found_config) {
+ printk(KERN_WARNING PREFIX
+ "No APIC-table, disabling MPS\n");
+ smp_found_config = 0;
+ }
}
/*
disable_acpi();
acpi_ht = 1;
}
+ /* acpi=rsdt use RSDT instead of XSDT */
+ else if (strcmp(arg, "rsdt") == 0) {
+ acpi_rsdt_forced = 1;
+ }
/* "acpi=noirq" disables ACPI interrupt routing */
else if (strcmp(arg, "noirq") == 0) {
acpi_noirq_set();
static short mwait_supported[ACPI_PROCESSOR_MAX_POWER];
#define MWAIT_SUBSTATE_MASK (0xf)
+#define MWAIT_CSTATE_MASK (0xf)
#define MWAIT_SUBSTATE_SIZE (4)
#define CPUID_MWAIT_LEAF (5)
cpuid(CPUID_MWAIT_LEAF, &eax, &ebx, &ecx, &edx);
/* Check whether this particular cx_type (in CST) is supported or not */
- cstate_type = (cx->address >> MWAIT_SUBSTATE_SIZE) + 1;
+ cstate_type = ((cx->address >> MWAIT_SUBSTATE_SIZE) &
+ MWAIT_CSTATE_MASK) + 1;
edx_part = edx >> (cstate_type * MWAIT_SUBSTATE_SIZE);
num_cstate_subtype = edx_part & MWAIT_SUBSTATE_MASK;
#endif
if (strncmp(str, "old_ordering", 12) == 0)
acpi_old_suspend_ordering();
+ if (strncmp(str, "s4_nonvs", 8) == 0)
+ acpi_s4_no_nvs();
str = strchr(str, ',');
if (str != NULL)
str += strspn(str, ", \t");
}
#endif
+#ifdef CONFIG_HIBERNATION
+/**
+ * Mark ACPI NVS memory region, so that we can save/restore it during
+ * hibernation and the subsequent resume.
+ */
+static int __init e820_mark_nvs_memory(void)
+{
+ int i;
+
+ for (i = 0; i < e820.nr_map; i++) {
+ struct e820entry *ei = &e820.map[i];
+
+ if (ei->type == E820_NVS)
+ hibernate_nvs_register(ei->addr, ei->size);
+ }
+
+ return 0;
+}
+core_initcall(e820_mark_nvs_memory);
+#endif
+
/*
* Early reserved memory areas.
*/
void (*f)(int num, int slot, int func);
};
+/*
+ * Only works for devices on the root bus. If you add any devices
+ * not on bus 0 readd another loop level in early_quirks(). But
+ * be careful because at least the Nvidia quirk here relies on
+ * only matching on bus 0.
+ */
static struct chipset early_qrk[] __initdata = {
{ PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
PCI_CLASS_BRIDGE_PCI, PCI_ANY_ID, QFLAG_APPLY_ONCE, nvidia_bugs },
void __init early_quirks(void)
{
- int num, slot, func;
+ int slot, func;
if (!early_pci_allowed())
return;
/* Poor man's PCI discovery */
- for (num = 0; num < 32; num++)
- for (slot = 0; slot < 32; slot++)
- for (func = 0; func < 8; func++) {
- /* Only probe function 0 on single fn devices */
- if (check_dev_quirk(num, slot, func))
- break;
- }
+ /* Only scan the root bus */
+ for (slot = 0; slot < 32; slot++)
+ for (func = 0; func < 8; func++) {
+ /* Only probe function 0 on single fn devices */
+ if (check_dev_quirk(0, slot, func))
+ break;
+ }
}
* @file op_model_amd.c
* athlon / K7 / K8 / Family 10h model-specific MSR operations
*
- * @remark Copyright 2002-2008 OProfile authors
+ * @remark Copyright 2002-2009 OProfile authors
* @remark Read the file COPYING
*
* @author John Levon
* @author Graydon Hoare
* @author Robert Richter <robert.richter@amd.com>
* @author Barry Kasindorf
-*/
+ */
#include <linux/oprofile.h>
#include <linux/device.h>
#define IBS_OP_LOW_VALID_BIT (1ULL<<18) /* bit 18 */
#define IBS_OP_LOW_ENABLE (1ULL<<17) /* bit 17 */
-/* Codes used in cpu_buffer.c */
-/* This produces duplicate code, need to be fixed */
-#define IBS_FETCH_BEGIN 3
-#define IBS_OP_BEGIN 4
-
-/*
- * The function interface needs to be fixed, something like add
- * data. Should then be added to linux/oprofile.h.
- */
-extern void
-oprofile_add_ibs_sample(struct pt_regs * const regs,
- unsigned int * const ibs_sample, int ibs_code);
-
-struct ibs_fetch_sample {
- /* MSRC001_1031 IBS Fetch Linear Address Register */
- unsigned int ibs_fetch_lin_addr_low;
- unsigned int ibs_fetch_lin_addr_high;
- /* MSRC001_1030 IBS Fetch Control Register */
- unsigned int ibs_fetch_ctl_low;
- unsigned int ibs_fetch_ctl_high;
- /* MSRC001_1032 IBS Fetch Physical Address Register */
- unsigned int ibs_fetch_phys_addr_low;
- unsigned int ibs_fetch_phys_addr_high;
-};
-
-struct ibs_op_sample {
- /* MSRC001_1034 IBS Op Logical Address Register (IbsRIP) */
- unsigned int ibs_op_rip_low;
- unsigned int ibs_op_rip_high;
- /* MSRC001_1035 IBS Op Data Register */
- unsigned int ibs_op_data1_low;
- unsigned int ibs_op_data1_high;
- /* MSRC001_1036 IBS Op Data 2 Register */
- unsigned int ibs_op_data2_low;
- unsigned int ibs_op_data2_high;
- /* MSRC001_1037 IBS Op Data 3 Register */
- unsigned int ibs_op_data3_low;
- unsigned int ibs_op_data3_high;
- /* MSRC001_1038 IBS DC Linear Address Register (IbsDcLinAd) */
- unsigned int ibs_dc_linear_low;
- unsigned int ibs_dc_linear_high;
- /* MSRC001_1039 IBS DC Physical Address Register (IbsDcPhysAd) */
- unsigned int ibs_dc_phys_low;
- unsigned int ibs_dc_phys_high;
-};
+#define IBS_FETCH_SIZE 6
+#define IBS_OP_SIZE 12
-static int ibs_allowed; /* AMD Family10h and later */
+static int has_ibs; /* AMD Family10h and later */
struct op_ibs_config {
unsigned long op_enabled;
op_amd_handle_ibs(struct pt_regs * const regs,
struct op_msrs const * const msrs)
{
- unsigned int low, high;
- struct ibs_fetch_sample ibs_fetch;
- struct ibs_op_sample ibs_op;
+ u32 low, high;
+ u64 msr;
+ struct op_entry entry;
- if (!ibs_allowed)
+ if (!has_ibs)
return 1;
if (ibs_config.fetch_enabled) {
rdmsr(MSR_AMD64_IBSFETCHCTL, low, high);
if (high & IBS_FETCH_HIGH_VALID_BIT) {
- ibs_fetch.ibs_fetch_ctl_high = high;
- ibs_fetch.ibs_fetch_ctl_low = low;
- rdmsr(MSR_AMD64_IBSFETCHLINAD, low, high);
- ibs_fetch.ibs_fetch_lin_addr_high = high;
- ibs_fetch.ibs_fetch_lin_addr_low = low;
- rdmsr(MSR_AMD64_IBSFETCHPHYSAD, low, high);
- ibs_fetch.ibs_fetch_phys_addr_high = high;
- ibs_fetch.ibs_fetch_phys_addr_low = low;
-
- oprofile_add_ibs_sample(regs,
- (unsigned int *)&ibs_fetch,
- IBS_FETCH_BEGIN);
+ rdmsrl(MSR_AMD64_IBSFETCHLINAD, msr);
+ oprofile_write_reserve(&entry, regs, msr,
+ IBS_FETCH_CODE, IBS_FETCH_SIZE);
+ oprofile_add_data(&entry, (u32)msr);
+ oprofile_add_data(&entry, (u32)(msr >> 32));
+ oprofile_add_data(&entry, low);
+ oprofile_add_data(&entry, high);
+ rdmsrl(MSR_AMD64_IBSFETCHPHYSAD, msr);
+ oprofile_add_data(&entry, (u32)msr);
+ oprofile_add_data(&entry, (u32)(msr >> 32));
+ oprofile_write_commit(&entry);
/* reenable the IRQ */
- rdmsr(MSR_AMD64_IBSFETCHCTL, low, high);
high &= ~IBS_FETCH_HIGH_VALID_BIT;
high |= IBS_FETCH_HIGH_ENABLE;
low &= IBS_FETCH_LOW_MAX_CNT_MASK;
if (ibs_config.op_enabled) {
rdmsr(MSR_AMD64_IBSOPCTL, low, high);
if (low & IBS_OP_LOW_VALID_BIT) {
- rdmsr(MSR_AMD64_IBSOPRIP, low, high);
- ibs_op.ibs_op_rip_low = low;
- ibs_op.ibs_op_rip_high = high;
- rdmsr(MSR_AMD64_IBSOPDATA, low, high);
- ibs_op.ibs_op_data1_low = low;
- ibs_op.ibs_op_data1_high = high;
- rdmsr(MSR_AMD64_IBSOPDATA2, low, high);
- ibs_op.ibs_op_data2_low = low;
- ibs_op.ibs_op_data2_high = high;
- rdmsr(MSR_AMD64_IBSOPDATA3, low, high);
- ibs_op.ibs_op_data3_low = low;
- ibs_op.ibs_op_data3_high = high;
- rdmsr(MSR_AMD64_IBSDCLINAD, low, high);
- ibs_op.ibs_dc_linear_low = low;
- ibs_op.ibs_dc_linear_high = high;
- rdmsr(MSR_AMD64_IBSDCPHYSAD, low, high);
- ibs_op.ibs_dc_phys_low = low;
- ibs_op.ibs_dc_phys_high = high;
+ rdmsrl(MSR_AMD64_IBSOPRIP, msr);
+ oprofile_write_reserve(&entry, regs, msr,
+ IBS_OP_CODE, IBS_OP_SIZE);
+ oprofile_add_data(&entry, (u32)msr);
+ oprofile_add_data(&entry, (u32)(msr >> 32));
+ rdmsrl(MSR_AMD64_IBSOPDATA, msr);
+ oprofile_add_data(&entry, (u32)msr);
+ oprofile_add_data(&entry, (u32)(msr >> 32));
+ rdmsrl(MSR_AMD64_IBSOPDATA2, msr);
+ oprofile_add_data(&entry, (u32)msr);
+ oprofile_add_data(&entry, (u32)(msr >> 32));
+ rdmsrl(MSR_AMD64_IBSOPDATA3, msr);
+ oprofile_add_data(&entry, (u32)msr);
+ oprofile_add_data(&entry, (u32)(msr >> 32));
+ rdmsrl(MSR_AMD64_IBSDCLINAD, msr);
+ oprofile_add_data(&entry, (u32)msr);
+ oprofile_add_data(&entry, (u32)(msr >> 32));
+ rdmsrl(MSR_AMD64_IBSDCPHYSAD, msr);
+ oprofile_add_data(&entry, (u32)msr);
+ oprofile_add_data(&entry, (u32)(msr >> 32));
+ oprofile_write_commit(&entry);
/* reenable the IRQ */
- oprofile_add_ibs_sample(regs,
- (unsigned int *)&ibs_op,
- IBS_OP_BEGIN);
- rdmsr(MSR_AMD64_IBSOPCTL, low, high);
high = 0;
low &= ~IBS_OP_LOW_VALID_BIT;
low |= IBS_OP_LOW_ENABLE;
}
#ifdef CONFIG_OPROFILE_IBS
- if (ibs_allowed && ibs_config.fetch_enabled) {
+ if (has_ibs && ibs_config.fetch_enabled) {
low = (ibs_config.max_cnt_fetch >> 4) & 0xFFFF;
high = ((ibs_config.rand_en & 0x1) << 25) /* bit 57 */
+ IBS_FETCH_HIGH_ENABLE;
wrmsr(MSR_AMD64_IBSFETCHCTL, low, high);
}
- if (ibs_allowed && ibs_config.op_enabled) {
+ if (has_ibs && ibs_config.op_enabled) {
low = ((ibs_config.max_cnt_op >> 4) & 0xFFFF)
+ ((ibs_config.dispatched_ops & 0x1) << 19) /* bit 19 */
+ IBS_OP_LOW_ENABLE;
}
#ifdef CONFIG_OPROFILE_IBS
- if (ibs_allowed && ibs_config.fetch_enabled) {
+ if (has_ibs && ibs_config.fetch_enabled) {
/* clear max count and enable */
low = 0;
high = 0;
wrmsr(MSR_AMD64_IBSFETCHCTL, low, high);
}
- if (ibs_allowed && ibs_config.op_enabled) {
+ if (has_ibs && ibs_config.op_enabled) {
/* clear max count and enable */
low = 0;
high = 0;
| IBSCTL_LVTOFFSETVAL);
pci_read_config_dword(cpu_cfg, IBSCTL, &value);
if (value != (ibs_eilvt_off | IBSCTL_LVTOFFSETVAL)) {
+ pci_dev_put(cpu_cfg);
printk(KERN_DEBUG "Failed to setup IBS LVT offset, "
"IBSCTL = 0x%08x", value);
return 1;
/* uninitialize the APIC for the IBS interrupts if needed */
static void clear_ibs_nmi(void)
{
- if (ibs_allowed)
+ if (has_ibs)
on_each_cpu(apic_clear_ibs_nmi_per_cpu, NULL, 1);
}
/* initialize the APIC for the IBS interrupts if available */
static void ibs_init(void)
{
- ibs_allowed = boot_cpu_has(X86_FEATURE_IBS);
+ has_ibs = boot_cpu_has(X86_FEATURE_IBS);
- if (!ibs_allowed)
+ if (!has_ibs)
return;
if (init_ibs_nmi()) {
- ibs_allowed = 0;
+ has_ibs = 0;
return;
}
static void ibs_exit(void)
{
- if (!ibs_allowed)
+ if (!has_ibs)
return;
clear_ibs_nmi();
if (ret)
return ret;
- if (!ibs_allowed)
+ if (!has_ibs)
return ret;
/* model specific files */
#include <linux/async_tx.h>
#ifdef CONFIG_DMA_ENGINE
-static enum dma_state_client
-dma_channel_add_remove(struct dma_client *client,
- struct dma_chan *chan, enum dma_state state);
-
-static struct dma_client async_tx_dma = {
- .event_callback = dma_channel_add_remove,
- /* .cap_mask == 0 defaults to all channels */
-};
-
-/**
- * dma_cap_mask_all - enable iteration over all operation types
- */
-static dma_cap_mask_t dma_cap_mask_all;
-
-/**
- * chan_ref_percpu - tracks channel allocations per core/opertion
- */
-struct chan_ref_percpu {
- struct dma_chan_ref *ref;
-};
-
-static int channel_table_initialized;
-static struct chan_ref_percpu *channel_table[DMA_TX_TYPE_END];
-
-/**
- * async_tx_lock - protect modification of async_tx_master_list and serialize
- * rebalance operations
- */
-static spinlock_t async_tx_lock;
-
-static LIST_HEAD(async_tx_master_list);
-
-/* async_tx_issue_pending_all - start all transactions on all channels */
-void async_tx_issue_pending_all(void)
-{
- struct dma_chan_ref *ref;
-
- rcu_read_lock();
- list_for_each_entry_rcu(ref, &async_tx_master_list, node)
- ref->chan->device->device_issue_pending(ref->chan);
- rcu_read_unlock();
-}
-EXPORT_SYMBOL_GPL(async_tx_issue_pending_all);
-
-/* dma_wait_for_async_tx - spin wait for a transcation to complete
- * @tx: transaction to wait on
- */
-enum dma_status
-dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx)
-{
- enum dma_status status;
- struct dma_async_tx_descriptor *iter;
- struct dma_async_tx_descriptor *parent;
-
- if (!tx)
- return DMA_SUCCESS;
-
- /* poll through the dependency chain, return when tx is complete */
- do {
- iter = tx;
-
- /* find the root of the unsubmitted dependency chain */
- do {
- parent = iter->parent;
- if (!parent)
- break;
- else
- iter = parent;
- } while (parent);
-
- /* there is a small window for ->parent == NULL and
- * ->cookie == -EBUSY
- */
- while (iter->cookie == -EBUSY)
- cpu_relax();
-
- status = dma_sync_wait(iter->chan, iter->cookie);
- } while (status == DMA_IN_PROGRESS || (iter != tx));
-
- return status;
-}
-EXPORT_SYMBOL_GPL(dma_wait_for_async_tx);
-
-/* async_tx_run_dependencies - helper routine for dma drivers to process
- * (start) dependent operations on their target channel
- * @tx: transaction with dependencies
- */
-void async_tx_run_dependencies(struct dma_async_tx_descriptor *tx)
-{
- struct dma_async_tx_descriptor *dep = tx->next;
- struct dma_async_tx_descriptor *dep_next;
- struct dma_chan *chan;
-
- if (!dep)
- return;
-
- chan = dep->chan;
-
- /* keep submitting up until a channel switch is detected
- * in that case we will be called again as a result of
- * processing the interrupt from async_tx_channel_switch
- */
- for (; dep; dep = dep_next) {
- spin_lock_bh(&dep->lock);
- dep->parent = NULL;
- dep_next = dep->next;
- if (dep_next && dep_next->chan == chan)
- dep->next = NULL; /* ->next will be submitted */
- else
- dep_next = NULL; /* submit current dep and terminate */
- spin_unlock_bh(&dep->lock);
-
- dep->tx_submit(dep);
- }
-
- chan->device->device_issue_pending(chan);
-}
-EXPORT_SYMBOL_GPL(async_tx_run_dependencies);
-
-static void
-free_dma_chan_ref(struct rcu_head *rcu)
-{
- struct dma_chan_ref *ref;
- ref = container_of(rcu, struct dma_chan_ref, rcu);
- kfree(ref);
-}
-
-static void
-init_dma_chan_ref(struct dma_chan_ref *ref, struct dma_chan *chan)
-{
- INIT_LIST_HEAD(&ref->node);
- INIT_RCU_HEAD(&ref->rcu);
- ref->chan = chan;
- atomic_set(&ref->count, 0);
-}
-
-/**
- * get_chan_ref_by_cap - returns the nth channel of the given capability
- * defaults to returning the channel with the desired capability and the
- * lowest reference count if the index can not be satisfied
- * @cap: capability to match
- * @index: nth channel desired, passing -1 has the effect of forcing the
- * default return value
- */
-static struct dma_chan_ref *
-get_chan_ref_by_cap(enum dma_transaction_type cap, int index)
-{
- struct dma_chan_ref *ret_ref = NULL, *min_ref = NULL, *ref;
-
- rcu_read_lock();
- list_for_each_entry_rcu(ref, &async_tx_master_list, node)
- if (dma_has_cap(cap, ref->chan->device->cap_mask)) {
- if (!min_ref)
- min_ref = ref;
- else if (atomic_read(&ref->count) <
- atomic_read(&min_ref->count))
- min_ref = ref;
-
- if (index-- == 0) {
- ret_ref = ref;
- break;
- }
- }
- rcu_read_unlock();
-
- if (!ret_ref)
- ret_ref = min_ref;
-
- if (ret_ref)
- atomic_inc(&ret_ref->count);
-
- return ret_ref;
-}
-
-/**
- * async_tx_rebalance - redistribute the available channels, optimize
- * for cpu isolation in the SMP case, and opertaion isolation in the
- * uniprocessor case
- */
-static void async_tx_rebalance(void)
-{
- int cpu, cap, cpu_idx = 0;
- unsigned long flags;
-
- if (!channel_table_initialized)
- return;
-
- spin_lock_irqsave(&async_tx_lock, flags);
-
- /* undo the last distribution */
- for_each_dma_cap_mask(cap, dma_cap_mask_all)
- for_each_possible_cpu(cpu) {
- struct dma_chan_ref *ref =
- per_cpu_ptr(channel_table[cap], cpu)->ref;
- if (ref) {
- atomic_set(&ref->count, 0);
- per_cpu_ptr(channel_table[cap], cpu)->ref =
- NULL;
- }
- }
-
- for_each_dma_cap_mask(cap, dma_cap_mask_all)
- for_each_online_cpu(cpu) {
- struct dma_chan_ref *new;
- if (NR_CPUS > 1)
- new = get_chan_ref_by_cap(cap, cpu_idx++);
- else
- new = get_chan_ref_by_cap(cap, -1);
-
- per_cpu_ptr(channel_table[cap], cpu)->ref = new;
- }
-
- spin_unlock_irqrestore(&async_tx_lock, flags);
-}
-
-static enum dma_state_client
-dma_channel_add_remove(struct dma_client *client,
- struct dma_chan *chan, enum dma_state state)
-{
- unsigned long found, flags;
- struct dma_chan_ref *master_ref, *ref;
- enum dma_state_client ack = DMA_DUP; /* default: take no action */
-
- switch (state) {
- case DMA_RESOURCE_AVAILABLE:
- found = 0;
- rcu_read_lock();
- list_for_each_entry_rcu(ref, &async_tx_master_list, node)
- if (ref->chan == chan) {
- found = 1;
- break;
- }
- rcu_read_unlock();
-
- pr_debug("async_tx: dma resource available [%s]\n",
- found ? "old" : "new");
-
- if (!found)
- ack = DMA_ACK;
- else
- break;
-
- /* add the channel to the generic management list */
- master_ref = kmalloc(sizeof(*master_ref), GFP_KERNEL);
- if (master_ref) {
- /* keep a reference until async_tx is unloaded */
- dma_chan_get(chan);
- init_dma_chan_ref(master_ref, chan);
- spin_lock_irqsave(&async_tx_lock, flags);
- list_add_tail_rcu(&master_ref->node,
- &async_tx_master_list);
- spin_unlock_irqrestore(&async_tx_lock,
- flags);
- } else {
- printk(KERN_WARNING "async_tx: unable to create"
- " new master entry in response to"
- " a DMA_RESOURCE_ADDED event"
- " (-ENOMEM)\n");
- return 0;
- }
-
- async_tx_rebalance();
- break;
- case DMA_RESOURCE_REMOVED:
- found = 0;
- spin_lock_irqsave(&async_tx_lock, flags);
- list_for_each_entry(ref, &async_tx_master_list, node)
- if (ref->chan == chan) {
- /* permit backing devices to go away */
- dma_chan_put(ref->chan);
- list_del_rcu(&ref->node);
- call_rcu(&ref->rcu, free_dma_chan_ref);
- found = 1;
- break;
- }
- spin_unlock_irqrestore(&async_tx_lock, flags);
-
- pr_debug("async_tx: dma resource removed [%s]\n",
- found ? "ours" : "not ours");
-
- if (found)
- ack = DMA_ACK;
- else
- break;
-
- async_tx_rebalance();
- break;
- case DMA_RESOURCE_SUSPEND:
- case DMA_RESOURCE_RESUME:
- printk(KERN_WARNING "async_tx: does not support dma channel"
- " suspend/resume\n");
- break;
- default:
- BUG();
- }
-
- return ack;
-}
-
-static int __init
-async_tx_init(void)
+static int __init async_tx_init(void)
{
- enum dma_transaction_type cap;
-
- spin_lock_init(&async_tx_lock);
- bitmap_fill(dma_cap_mask_all.bits, DMA_TX_TYPE_END);
-
- /* an interrupt will never be an explicit operation type.
- * clearing this bit prevents allocation to a slot in 'channel_table'
- */
- clear_bit(DMA_INTERRUPT, dma_cap_mask_all.bits);
-
- for_each_dma_cap_mask(cap, dma_cap_mask_all) {
- channel_table[cap] = alloc_percpu(struct chan_ref_percpu);
- if (!channel_table[cap])
- goto err;
- }
-
- channel_table_initialized = 1;
- dma_async_client_register(&async_tx_dma);
- dma_async_client_chan_request(&async_tx_dma);
+ dmaengine_get();
printk(KERN_INFO "async_tx: api initialized (async)\n");
return 0;
-err:
- printk(KERN_ERR "async_tx: initialization failure\n");
-
- while (--cap >= 0)
- free_percpu(channel_table[cap]);
-
- return 1;
}
static void __exit async_tx_exit(void)
{
- enum dma_transaction_type cap;
-
- channel_table_initialized = 0;
-
- for_each_dma_cap_mask(cap, dma_cap_mask_all)
- if (channel_table[cap])
- free_percpu(channel_table[cap]);
-
- dma_async_client_unregister(&async_tx_dma);
+ dmaengine_put();
}
/**
{
/* see if we can keep the chain on one channel */
if (depend_tx &&
- dma_has_cap(tx_type, depend_tx->chan->device->cap_mask))
+ dma_has_cap(tx_type, depend_tx->chan->device->cap_mask))
return depend_tx->chan;
- else if (likely(channel_table_initialized)) {
- struct dma_chan_ref *ref;
- int cpu = get_cpu();
- ref = per_cpu_ptr(channel_table[tx_type], cpu)->ref;
- put_cpu();
- return ref ? ref->chan : NULL;
- } else
- return NULL;
+ return dma_find_channel(tx_type);
}
EXPORT_SYMBOL_GPL(__async_tx_find_channel);
#else
source "drivers/xen/Kconfig"
source "drivers/staging/Kconfig"
+
+source "drivers/platform/Kconfig"
endmenu
obj-$(CONFIG_SSB) += ssb/
obj-$(CONFIG_VIRTIO) += virtio/
obj-$(CONFIG_STAGING) += staging/
+obj-y += platform/
depends on (X86 || IA64)
default y if IA64_GENERIC || IA64_SGI_SN2
-config ACPI_WMI
- tristate "WMI (EXPERIMENTAL)"
- depends on X86
- depends on EXPERIMENTAL
- help
- This driver adds support for the ACPI-WMI (Windows Management
- Instrumentation) mapper device (PNP0C14) found on some systems.
-
- ACPI-WMI is a proprietary extension to ACPI to expose parts of the
- ACPI firmware to userspace - this is done through various vendor
- defined methods and data blocks in a PNP0C14 device, which are then
- made available for userspace to call.
-
- The implementation of this in Linux currently only exposes this to
- other kernel space drivers.
-
- This driver is a required dependency to build the firmware specific
- drivers needed on many machines, including Acer and HP laptops.
-
- It is safe to enable this driver even if your DSDT doesn't define
- any ACPI-WMI devices.
-
-config ACPI_ASUS
- tristate "ASUS/Medion Laptop Extras"
- depends on X86
- select BACKLIGHT_CLASS_DEVICE
- ---help---
- This driver provides support for extra features of ACPI-compatible
- ASUS laptops. As some of Medion laptops are made by ASUS, it may also
- support some Medion laptops (such as 9675 for example). It makes all
- the extra buttons generate standard ACPI events that go through
- /proc/acpi/events, and (on some models) adds support for changing the
- display brightness and output, switching the LCD backlight on and off,
- and most importantly, allows you to blink those fancy LEDs intended
- for reporting mail and wireless status.
-
- Note: display switching code is currently considered EXPERIMENTAL,
- toying with these values may even lock your machine.
-
- All settings are changed via /proc/acpi/asus directory entries. Owner
- and group for these entries can be set with asus_uid and asus_gid
- parameters.
-
- More information and a userspace daemon for handling the extra buttons
- at <http://sourceforge.net/projects/acpi4asus/>.
-
- If you have an ACPI-compatible ASUS laptop, say Y or M here. This
- driver is still under development, so if your laptop is unsupported or
- something works not quite as expected, please use the mailing list
- available on the above page (acpi4asus-user@lists.sourceforge.net).
-
- NOTE: This driver is deprecated and will probably be removed soon,
- use asus-laptop instead.
-
-config ACPI_TOSHIBA
- tristate "Toshiba Laptop Extras"
- depends on X86 && INPUT
- select INPUT_POLLDEV
- select NET
- select RFKILL
- select BACKLIGHT_CLASS_DEVICE
- ---help---
- This driver adds support for access to certain system settings
- on "legacy free" Toshiba laptops. These laptops can be recognized by
- their lack of a BIOS setup menu and APM support.
-
- On these machines, all system configuration is handled through the
- ACPI. This driver is required for access to controls not covered
- by the general ACPI drivers, such as LCD brightness, video output,
- etc.
-
- This driver differs from the non-ACPI Toshiba laptop driver (located
- under "Processor type and features") in several aspects.
- Configuration is accessed by reading and writing text files in the
- /proc tree instead of by program interface to /dev. Furthermore, no
- power management functions are exposed, as those are handled by the
- general ACPI drivers.
-
- More information about this driver is available at
- <http://memebeam.org/toys/ToshibaAcpiDriver>.
-
- If you have a legacy free Toshiba laptop (such as the Libretto L1
- series), say Y.
-
config ACPI_CUSTOM_DSDT_FILE
string "Custom DSDT Table file to include"
default ""
# Makefile for the Linux ACPI interpreter
#
-export ACPI_CFLAGS
-
-ACPI_CFLAGS := -Os
-
-ifdef CONFIG_ACPI_DEBUG
- ACPI_CFLAGS += -DACPI_DEBUG_OUTPUT
-endif
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
+ccflags-y := -Os
+ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT
#
# ACPI Boot-Time Table Parsing
# ACPI Core Subsystem (Interpreter)
#
obj-y += osl.o utils.o reboot.o\
- dispatcher/ events/ executer/ hardware/ \
- namespace/ parser/ resources/ tables/ \
- utilities/
+ acpica/
+
+# sleep related files
+obj-y += wakeup.o
+obj-y += main.o
+obj-$(CONFIG_ACPI_SLEEP) += proc.o
+
#
# ACPI Bus and Device Drivers
processor-objs += processor_perflib.o
endif
-obj-y += sleep/
obj-y += bus.o glue.o
obj-y += scan.o
# Keep EC driver first. Initialization of others depend on it.
obj-$(CONFIG_ACPI_SYSTEM) += system.o event.o
obj-$(CONFIG_ACPI_DEBUG) += debug.o
obj-$(CONFIG_ACPI_NUMA) += numa.o
-obj-$(CONFIG_ACPI_WMI) += wmi.o
-obj-$(CONFIG_ACPI_ASUS) += asus_acpi.o
-obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o
obj-$(CONFIG_ACPI_HOTPLUG_MEMORY) += acpi_memhotplug.o
obj-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o
obj-$(CONFIG_ACPI_SBS) += sbshc.o
--- /dev/null
+#
+# Makefile for ACPICA Core interpreter
+#
+
+ccflags-y := -Os
+ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT
+
+obj-y := dsfield.o dsmthdat.o dsopcode.o dswexec.o dswscope.o \
+ dsmethod.o dsobject.o dsutils.o dswload.o dswstate.o \
+ dsinit.o
+
+obj-y += evevent.o evregion.o evsci.o evxfevnt.o \
+ evmisc.o evrgnini.o evxface.o evxfregn.o \
+ evgpe.o evgpeblk.o
+
+obj-y += exconfig.o exfield.o exnames.o exoparg6.o exresolv.o exstorob.o\
+ exconvrt.o exfldio.o exoparg1.o exprep.o exresop.o exsystem.o\
+ excreate.o exmisc.o exoparg2.o exregion.o exstore.o exutils.o \
+ exdump.o exmutex.o exoparg3.o exresnte.o exstoren.o
+
+obj-y += hwacpi.o hwgpe.o hwregs.o hwsleep.o hwxface.o
+
+obj-$(ACPI_FUTURE_USAGE) += hwtimer.o
+
+obj-y += nsaccess.o nsload.o nssearch.o nsxfeval.o \
+ nsalloc.o nseval.o nsnames.o nsutils.o nsxfname.o \
+ nsdump.o nsinit.o nsobject.o nswalk.o nsxfobj.o \
+ nsparse.o nspredef.o
+
+obj-$(ACPI_FUTURE_USAGE) += nsdumpdv.o
+
+obj-y += psargs.o psparse.o psloop.o pstree.o pswalk.o \
+ psopcode.o psscope.o psutils.o psxface.o
+
+obj-y += rsaddr.o rscreate.o rsinfo.o rsio.o rslist.o rsmisc.o rsxface.o \
+ rscalc.o rsirq.o rsmemory.o rsutils.o
+
+obj-$(ACPI_FUTURE_USAGE) += rsdump.o
+
+obj-y += tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o
+
+obj-y += utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \
+ utcopy.o utdelete.o utglobal.o utmath.o utobject.o \
+ utstate.o utmutex.o utobject.o utresrc.o
--- /dev/null
+/******************************************************************************
+ *
+ * Name: accommon.h - Common include files for generation of ACPICA source
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#ifndef __ACCOMMON_H__
+#define __ACCOMMON_H__
+
+/*
+ * Common set of includes for all ACPICA source files.
+ * We put them here because we don't want to duplicate them
+ * in the the source code again and again.
+ *
+ * Note: The order of these include files is important.
+ */
+#include "acconfig.h" /* Global configuration constants */
+#include "acmacros.h" /* C macros */
+#include "aclocal.h" /* Internal data types */
+#include "acobject.h" /* ACPI internal object */
+#include "acstruct.h" /* Common structures */
+#include "acglobal.h" /* All global variables */
+#include "achware.h" /* Hardware defines and interfaces */
+#include "acutils.h" /* Utility interfaces */
+
+#endif /* __ACCOMMON_H__ */
*
*/
-/* Current ACPICA subsystem version in YYYYMMDD format */
-
-#define ACPI_CA_VERSION 0x20080926
-
/*
* OS name, used for the _OS object. The _OS object is essentially obsolete,
* but there is a large base of ASL/AML code in existing machines that check
#define ACPI_ROOT_TABLE_SIZE_INCREMENT 4
+/* Maximum number of While() loop iterations before forced abort */
+
+#define ACPI_MAX_LOOP_ITERATIONS 0xFFFF
+
/******************************************************************************
*
* ACPI Specification constants (Do not change unless the specification changes)
*/
u8 acpi_ev_valid_gpe_event(struct acpi_gpe_event_info *gpe_event_info);
-acpi_status acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback);
+acpi_status
+acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback, void *context);
acpi_status
acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
- struct acpi_gpe_block_info *gpe_block);
+ struct acpi_gpe_block_info *gpe_block,
+ void *context);
acpi_status
acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
*/
ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_leave_wake_gpes_disabled, TRUE);
+/*
+ * Optionally use default values for the ACPI register widths. Set this to
+ * TRUE to use the defaults, if an FADT contains incorrect widths/lengths.
+ */
+ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_use_default_register_widths, TRUE);
+
/*****************************************************************************
*
* Debug support
*/
ACPI_EXTERN struct acpi_internal_rsdt acpi_gbl_root_table_list;
ACPI_EXTERN struct acpi_table_fadt acpi_gbl_FADT;
-extern u8 acpi_gbl_permanent_mmap;
+ACPI_EXTERN struct acpi_table_facs *acpi_gbl_FACS;
/* These addresses are calculated from FADT address values */
ACPI_EXTERN struct acpi_gpe_xrupt_info *acpi_gbl_gpe_xrupt_list_head;
ACPI_EXTERN struct acpi_gpe_block_info
*acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS];
+ACPI_EXTERN u32 acpi_current_gpe_count;
/*****************************************************************************
*
#ifndef __ACHWARE_H__
#define __ACHWARE_H__
-/* PM Timer ticks per second (HZ) */
-
-#define PM_TIMER_FREQUENCY 3579545
-
-/* Values for the _SST reserved method */
+/* Values for the _SST predefined method */
#define ACPI_SST_INDICATOR_OFF 0
#define ACPI_SST_WORKING 1
#define ACPI_SST_SLEEPING 3
#define ACPI_SST_SLEEP_CONTEXT 4
-/* Prototypes */
-
/*
* hwacpi - high level functions
*/
acpi_status acpi_hw_register_write(u32 register_id, u32 value);
-acpi_status
-acpi_hw_low_level_read(u32 width,
- u32 * value, struct acpi_generic_address *reg);
-
-acpi_status
-acpi_hw_low_level_write(u32 width, u32 value, struct acpi_generic_address *reg);
-
acpi_status acpi_hw_clear_acpi_status(void);
/*
acpi_status
acpi_hw_disable_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
- struct acpi_gpe_block_info *gpe_block);
+ struct acpi_gpe_block_info *gpe_block, void *context);
acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info *gpe_event_info);
acpi_status
acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
- struct acpi_gpe_block_info *gpe_block);
+ struct acpi_gpe_block_info *gpe_block, void *context);
acpi_status
acpi_hw_get_gpe_status(struct acpi_gpe_event_info *gpe_event_info,
acpi_status
acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
- struct acpi_gpe_block_info *gpe_block);
+ struct acpi_gpe_block_info *gpe_block,
+ void *context);
#ifdef ACPI_FUTURE_USAGE
/*
/* acpisrc:struct_defs -- for acpisrc conversion */
-#define ACPI_WAIT_FOREVER 0xFFFF /* u16, as per ACPI spec */
-#define ACPI_DO_NOT_WAIT 0
#define ACPI_SERIALIZED 0xFF
typedef u32 acpi_mutex_handle;
#define ACPI_MAX_LOCK 1
#define ACPI_NUM_LOCK ACPI_MAX_LOCK+1
-/* Owner IDs are used to track namespace nodes for selective deletion */
-
-typedef u8 acpi_owner_id;
-#define ACPI_OWNER_ID_MAX 0xFF
-
/* This Thread ID means that the mutex is not in use (unlocked) */
#define ACPI_MUTEX_NOT_ACQUIRED (acpi_thread_id) 0
ACPI_IMODE_EXECUTE = 0x03
} acpi_interpreter_mode;
-union acpi_name_union {
- u32 integer;
- char ascii[4];
-};
-
/*
* The Namespace Node describes a named object that appears in the AML.
* descriptor_type is used to differentiate between internal descriptors.
#define ANOBJ_IS_BIT_OFFSET 0x40 /* i_aSL only: Reference is a bit offset */
#define ANOBJ_IS_REFERENCED 0x80 /* i_aSL only: Object was referenced */
-/*
- * ACPI Table Descriptor. One per ACPI table
- */
-struct acpi_table_desc {
- acpi_physical_address address;
- struct acpi_table_header *pointer;
- u32 length; /* Length fixed at 32 bits */
- union acpi_name_union signature;
- acpi_owner_id owner_id;
- u8 flags;
-};
-
-/* Flags for above */
-
-#define ACPI_TABLE_ORIGIN_UNKNOWN (0)
-#define ACPI_TABLE_ORIGIN_MAPPED (1)
-#define ACPI_TABLE_ORIGIN_ALLOCATED (2)
-#define ACPI_TABLE_ORIGIN_MASK (3)
-#define ACPI_TABLE_IS_LOADED (4)
-
/* One internal RSDT for table management */
struct acpi_internal_rsdt {
struct acpi_namespace_node *node;
};
-/*
- * Predefined Namespace items
- */
-struct acpi_predefined_names {
- char *name;
- u8 type;
- char *val;
-};
-
/* Object types used during package copies */
#define ACPI_COPY_TYPE_SIMPLE 0
struct acpi_gpe_block_info *gpe_block;
};
-typedef acpi_status(*acpi_gpe_callback) (struct acpi_gpe_xrupt_info *
- gpe_xrupt_info,
- struct acpi_gpe_block_info *
- gpe_block);
+struct acpi_gpe_device_info {
+ u32 index;
+ u32 next_block_base_index;
+ acpi_status status;
+ struct acpi_namespace_node *gpe_device;
+};
+
+typedef acpi_status(*acpi_gpe_callback) (struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+ struct acpi_gpe_block_info *gpe_block, void *context);
/* Information about each particular fixed event */
union acpi_parse_object *predicate_op;
u8 *aml_predicate_start; /* Start of if/while predicate */
u8 *package_end; /* End of if/while block */
+ u32 loop_count; /* While() loop counter */
};
/*
union acpi_parse_object *arg; /* arguments and contained ops */
};
+#ifdef ACPI_DISASSEMBLER
+#define ACPI_DISASM_ONLY_MEMBERS(a) a;
+#else
+#define ACPI_DISASM_ONLY_MEMBERS(a)
+#endif
+
#define ACPI_PARSE_COMMON \
union acpi_parse_object *parent; /* Parent op */\
u8 descriptor_type; /* To differentiate various internal objs */\
*
****************************************************************************/
-#define PCI_ROOT_HID_STRING "PNP0A03"
-#define PCI_EXPRESS_ROOT_HID_STRING "PNP0A08"
-
struct acpi_bit_register_info {
u8 parent_register;
u8 bit_position;
#define ACPI_MEM_LIST_MAX 1
#define ACPI_NUM_MEM_LISTS 2
-struct acpi_memory_list {
- char *list_name;
- void *list_head;
- u16 object_size;
- u16 max_depth;
- u16 current_depth;
- u16 link_offset;
-
-#ifdef ACPI_DBG_TRACK_ALLOCATIONS
-
- /* Statistics for debug memory tracking only */
-
- u32 total_allocated;
- u32 total_freed;
- u32 max_occupied;
- u32 total_size;
- u32 current_total_size;
- u32 requests;
- u32 hits;
-#endif
-};
-
#endif /* __ACLOCAL_H__ */
#ifndef __ACMACROS_H__
#define __ACMACROS_H__
-/*
- * Data manipulation macros
- */
-#define ACPI_LOWORD(l) ((u16)(u32)(l))
-#define ACPI_HIWORD(l) ((u16)((((u32)(l)) >> 16) & 0xFFFF))
-#define ACPI_LOBYTE(l) ((u8)(u16)(l))
-#define ACPI_HIBYTE(l) ((u8)((((u16)(l)) >> 8) & 0xFF))
-
-#define ACPI_SET_BIT(target,bit) ((target) |= (bit))
-#define ACPI_CLEAR_BIT(target,bit) ((target) &= ~(bit))
-#define ACPI_MIN(a,b) (((a)<(b))?(a):(b))
-#define ACPI_MAX(a,b) (((a)>(b))?(a):(b))
-
-/* Size calculation */
-
-#define ACPI_ARRAY_LENGTH(x) (sizeof(x) / sizeof((x)[0]))
-
/*
* Extract data using a pointer. Any more than a byte and we
* get into potential aligment issues -- see the STORE macros below.
#define ACPI_SET32(ptr) *ACPI_CAST_PTR (u32, ptr)
#define ACPI_SET64(ptr) *ACPI_CAST_PTR (u64, ptr)
-/*
- * Pointer manipulation
- */
-#define ACPI_CAST_PTR(t, p) ((t *) (acpi_uintptr_t) (p))
-#define ACPI_CAST_INDIRECT_PTR(t, p) ((t **) (acpi_uintptr_t) (p))
-#define ACPI_ADD_PTR(t, a, b) ACPI_CAST_PTR (t, (ACPI_CAST_PTR (u8, (a)) + (acpi_size)(b)))
-#define ACPI_PTR_DIFF(a, b) (acpi_size) (ACPI_CAST_PTR (u8, (a)) - ACPI_CAST_PTR (u8, (b)))
-
-/* Pointer/Integer type conversions */
-
-#define ACPI_TO_POINTER(i) ACPI_ADD_PTR (void, (void *) NULL, (acpi_size) i)
-#define ACPI_TO_INTEGER(p) ACPI_PTR_DIFF (p, (void *) NULL)
-#define ACPI_OFFSET(d, f) (acpi_size) ACPI_PTR_DIFF (&(((d *)0)->f), (void *) NULL)
-#define ACPI_PHYSADDR_TO_PTR(i) ACPI_TO_POINTER(i)
-#define ACPI_PTR_TO_PHYSADDR(i) ACPI_TO_INTEGER(i)
-
-#ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
-#define ACPI_COMPARE_NAME(a, b) (*ACPI_CAST_PTR (u32, (a)) == *ACPI_CAST_PTR (u32, (b)))
-#else
-#define ACPI_COMPARE_NAME(a, b) (!ACPI_STRNCMP (ACPI_CAST_PTR (char, (a)), ACPI_CAST_PTR (char, (b)), ACPI_NAME_SIZE))
-#endif
-
-/*
- * Full 64-bit integer must be available on both 32-bit and 64-bit platforms
- */
-struct acpi_integer_overlay {
- u32 lo_dword;
- u32 hi_dword;
-};
-
-#define ACPI_LODWORD(integer) (ACPI_CAST_PTR (struct acpi_integer_overlay, &integer)->lo_dword)
-#define ACPI_HIDWORD(integer) (ACPI_CAST_PTR (struct acpi_integer_overlay, &integer)->hi_dword)
-
/*
* printf() format helpers
*/
/*
* The hardware does not support unaligned transfers. We must move the
* data one byte at a time. These macros work whether the source or
- * the destination (or both) is/are unaligned. (Little-endian move)
+ * the destination (or both) is/are unaligned. (Little-endian move)
*/
/* 16-bit source, 16/32/64 destination */
{(u32)(Pargs), (u32)(Iargs), (u32)(flags), obj_type, class, type}
#endif
-#ifdef ACPI_DISASSEMBLER
-#define ACPI_DISASM_ONLY_MEMBERS(a) a;
-#else
-#define ACPI_DISASM_ONLY_MEMBERS(a)
-#endif
-
#define ARG_TYPE_WIDTH 5
#define ARG_1(x) ((u32)(x))
#define ARG_2(x) ((u32)(x) << (1 * ARG_TYPE_WIDTH))
#define GET_CURRENT_ARG_TYPE(list) (list & ((u32) 0x1F))
#define INCREMENT_ARG_LIST(list) (list >>= ((u32) ARG_TYPE_WIDTH))
-#if defined (ACPI_DEBUG_OUTPUT) || !defined (ACPI_NO_ERROR_MESSAGES)
-/*
- * Module name is include in both debug and non-debug versions primarily for
- * error messages. The __FILE__ macro is not very useful for this, because it
- * often includes the entire pathname to the module
- */
-#define ACPI_MODULE_NAME(name) static const char ACPI_UNUSED_VAR _acpi_module_name[] = name;
-#else
-#define ACPI_MODULE_NAME(name)
-#endif
-
/*
* Ascii error messages can be configured out
*/
#ifndef ACPI_NO_ERROR_MESSAGES
-#define AE_INFO _acpi_module_name, __LINE__
/*
* Error reporting. Callers module and line number are inserted by AE_INFO,
* the plist contains a set of parens to allow variable-length lists.
* These macros are used for both the debug and non-debug versions of the code.
*/
-#define ACPI_INFO(plist) acpi_ut_info plist
-#define ACPI_WARNING(plist) acpi_ut_warning plist
-#define ACPI_EXCEPTION(plist) acpi_ut_exception plist
-#define ACPI_ERROR(plist) acpi_ut_error plist
#define ACPI_ERROR_NAMESPACE(s, e) acpi_ns_report_error (AE_INFO, s, e);
#define ACPI_ERROR_METHOD(s, n, p, e) acpi_ns_report_method_error (AE_INFO, s, n, p, e);
/* No error messages */
-#define ACPI_INFO(plist)
-#define ACPI_WARNING(plist)
-#define ACPI_EXCEPTION(plist)
-#define ACPI_ERROR(plist)
#define ACPI_ERROR_NAMESPACE(s, e)
#define ACPI_ERROR_METHOD(s, n, p, e)
-#endif
+#endif /* ACPI_NO_ERROR_MESSAGES */
/*
* Debug macros that are conditionally compiled
*/
#ifdef ACPI_DEBUG_OUTPUT
-/*
- * Common parameters used for debug output functions:
- * line number, function name, module(file) name, component ID
- */
-#define ACPI_DEBUG_PARAMETERS __LINE__, ACPI_GET_FUNCTION_NAME, _acpi_module_name, _COMPONENT
-
/*
* Function entry tracing
*/
-
-/*
- * If ACPI_GET_FUNCTION_NAME was not defined in the compiler-dependent header,
- * define it now. This is the case where there the compiler does not support
- * a __func__ macro or equivalent.
- */
-#ifndef ACPI_GET_FUNCTION_NAME
-#define ACPI_GET_FUNCTION_NAME _acpi_function_name
-/*
- * The Name parameter should be the procedure name as a quoted string.
- * The function name is also used by the function exit macros below.
- * Note: (const char) is used to be compatible with the debug interfaces
- * and macros such as __func__.
- */
-#define ACPI_FUNCTION_NAME(name) static const char _acpi_function_name[] = #name;
-
-#else
-/* Compiler supports __func__ (or equivalent) -- Ignore this macro */
-
-#define ACPI_FUNCTION_NAME(name)
-#endif
-
#ifdef CONFIG_ACPI_DEBUG_FUNC_TRACE
#define ACPI_FUNCTION_TRACE(a) ACPI_FUNCTION_NAME(a) \
#define ACPI_DUMP_RESOURCE_LIST(a) acpi_rs_dump_resource_list(a)
#define ACPI_DUMP_BUFFER(a, b) acpi_ut_dump_buffer((u8 *) a, b, DB_BYTE_DISPLAY, _COMPONENT)
-/*
- * Master debug print macros
- * Print iff:
- * 1) Debug print for the current component is enabled
- * 2) Debug error level or trace level for the print statement is enabled
- */
-#define ACPI_DEBUG_PRINT(plist) acpi_ut_debug_print plist
-#define ACPI_DEBUG_PRINT_RAW(plist) acpi_ut_debug_print_raw plist
-
#else
/*
* This is the non-debug case -- make everything go away,
#define ACPI_DEBUG_DEFINE(a) do { } while(0)
#define ACPI_DEBUG_ONLY_MEMBERS(a) do { } while(0)
-#define ACPI_FUNCTION_NAME(a) do { } while(0)
#define ACPI_FUNCTION_TRACE(a) do { } while(0)
#define ACPI_FUNCTION_TRACE_PTR(a, b) do { } while(0)
#define ACPI_FUNCTION_TRACE_U32(a, b) do { } while(0)
#define ACPI_DUMP_PATHNAME(a, b, c, d) do { } while(0)
#define ACPI_DUMP_RESOURCE_LIST(a) do { } while(0)
#define ACPI_DUMP_BUFFER(a, b) do { } while(0)
-#define ACPI_DEBUG_PRINT(pl) do { } while(0)
-#define ACPI_DEBUG_PRINT_RAW(pl) do { } while(0)
#define return_VOID return
#define return_ACPI_STATUS(s) return(s)
#define return_UINT32(s) return(s)
#define return_PTR(s) return(s)
-#endif
+#endif /* ACPI_DEBUG_OUTPUT */
/*
* Some code only gets executed when the debugger is built in.
*/
acpi_status
acpi_ns_check_predefined_names(struct acpi_namespace_node *node,
- union acpi_operand_object *return_object);
+ u32 user_param_count,
+ acpi_status return_status,
+ union acpi_operand_object **return_object);
const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct
acpi_namespace_node
void
acpi_ns_check_parameter_count(char *pathname,
struct acpi_namespace_node *node,
+ u32 user_param_count,
const union acpi_predefined_info *info);
/*
/*
* tbutils - table manager utilities
*/
+acpi_status acpi_tb_initialize_facs(void);
+
u8 acpi_tb_tables_loaded(void);
void
void acpi_ut_report_warning(char *module_name, u32 line_number);
-/* Error and message reporting interfaces */
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_debug_print(u32 requested_debug_level,
- u32 line_number,
- const char *function_name,
- const char *module_name,
- u32 component_id,
- const char *format, ...) ACPI_PRINTF_LIKE(6);
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_debug_print_raw(u32 requested_debug_level,
- u32 line_number,
- const char *function_name,
- const char *module_name,
- u32 component_id,
- const char *format, ...) ACPI_PRINTF_LIKE(6);
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_error(const char *module_name,
- u32 line_number, const char *format, ...) ACPI_PRINTF_LIKE(3);
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_exception(const char *module_name,
- u32 line_number,
- acpi_status status,
- const char *format, ...) ACPI_PRINTF_LIKE(4);
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_warning(const char *module_name,
- u32 line_number, const char *format, ...) ACPI_PRINTF_LIKE(3);
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_info(const char *module_name,
- u32 line_number, const char *format, ...) ACPI_PRINTF_LIKE(3);
-
/*
* utdelete - Object deletion and reference counts
*/
*/
#include <acpi/acpi.h>
-#include <acpi/amlcode.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acparser.h>
+#include "accommon.h"
+#include "amlcode.h"
+#include "acdispat.h"
+#include "acinterp.h"
+#include "acnamesp.h"
+#include "acparser.h"
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME("dsfield")
*/
#include <acpi/acpi.h>
-#include <acpi/acdispat.h>
-#include <acpi/acnamesp.h>
-#include <acpi/actables.h>
+#include "accommon.h"
+#include "acdispat.h"
+#include "acnamesp.h"
+#include "actables.h"
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME("dsinit")
*/
#include <acpi/acpi.h>
-#include <acpi/amlcode.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "amlcode.h"
+#include "acdispat.h"
+#include "acinterp.h"
+#include "acnamesp.h"
+#ifdef ACPI_DISASSEMBLER
#include <acpi/acdisasm.h>
+#endif
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME("dsmethod")
if (obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) {
status = obj_desc->method.implementation(next_walk_state);
+ if (status == AE_OK) {
+ status = AE_CTRL_TERMINATE;
+ }
}
return_ACPI_STATUS(status);
*/
#include <acpi/acpi.h>
-#include <acpi/acdispat.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acinterp.h>
+#include "accommon.h"
+#include "acdispat.h"
+#include "acnamesp.h"
+#include "acinterp.h"
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME("dsmthdat")
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
-#include <acpi/acdispat.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acinterp.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "amlcode.h"
+#include "acdispat.h"
+#include "acnamesp.h"
+#include "acinterp.h"
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME("dsobject")
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acevents.h>
-#include <acpi/actables.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "amlcode.h"
+#include "acdispat.h"
+#include "acinterp.h"
+#include "acnamesp.h"
+#include "acevents.h"
+#include "actables.h"
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME("dsopcode")
op->common.aml_opcode, walk_state));
switch (op->common.aml_opcode) {
- case AML_IF_OP:
case AML_WHILE_OP:
+ /*
+ * If this is an additional iteration of a while loop, continue.
+ * There is no need to allocate a new control state.
+ */
+ if (walk_state->control_state) {
+ if (walk_state->control_state->control.aml_predicate_start
+ == (walk_state->parser_state.aml - 1)) {
+
+ /* Reset the state to start-of-loop */
+
+ walk_state->control_state->common.state =
+ ACPI_CONTROL_CONDITIONAL_EXECUTING;
+ break;
+ }
+ }
+
+ /*lint -fallthrough */
+
+ case AML_IF_OP:
+
/*
* IF/WHILE: Create a new control state to manage these
* constructs. We need to manage these as a stack, in order
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "[WHILE_OP] Op=%p\n", op));
- if (walk_state->control_state->common.value) {
+ control_state = walk_state->control_state;
+ if (control_state->common.value) {
- /* Predicate was true, go back and evaluate it again! */
+ /* Predicate was true, the body of the loop was just executed */
+ /*
+ * This loop counter mechanism allows the interpreter to escape
+ * possibly infinite loops. This can occur in poorly written AML
+ * when the hardware does not respond within a while loop and the
+ * loop does not implement a timeout.
+ */
+ control_state->control.loop_count++;
+ if (control_state->control.loop_count >
+ ACPI_MAX_LOOP_ITERATIONS) {
+ status = AE_AML_INFINITE_LOOP;
+ break;
+ }
+
+ /*
+ * Go back and evaluate the predicate and maybe execute the loop
+ * another time
+ */
status = AE_CTRL_PENDING;
+ walk_state->aml_last_while =
+ control_state->control.aml_predicate_start;
+ break;
}
+ /* Predicate was false, terminate this while loop */
+
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
"[WHILE_OP] termination! Op=%p\n", op));
control_state =
acpi_ut_pop_generic_state(&walk_state->control_state);
-
- walk_state->aml_last_while =
- control_state->control.aml_predicate_start;
acpi_ut_delete_generic_state(control_state);
break;
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acdebug.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "amlcode.h"
+#include "acdispat.h"
+#include "acinterp.h"
+#include "acnamesp.h"
+#include "acdebug.h"
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME("dsutils")
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acdebug.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "amlcode.h"
+#include "acdispat.h"
+#include "acinterp.h"
+#include "acnamesp.h"
+#include "acdebug.h"
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME("dswexec")
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acevents.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "amlcode.h"
+#include "acdispat.h"
+#include "acinterp.h"
+#include "acnamesp.h"
+#include "acevents.h"
#ifdef ACPI_ASL_COMPILER
#include <acpi/acdisasm.h>
*/
#include <acpi/acpi.h>
-#include <acpi/acdispat.h>
+#include "accommon.h"
+#include "acdispat.h"
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME("dswscope")
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
-#include <acpi/acdispat.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "acdispat.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME("dswstate")
*/
#include <acpi/acpi.h>
-#include <acpi/acevents.h>
+#include "accommon.h"
+#include "acevents.h"
#define _COMPONENT ACPI_EVENTS
ACPI_MODULE_NAME("evevent")
/*
* Initialize the Fixed and General Purpose Events. This is done prior to
- * enabling SCIs to prevent interrupts from occurring before the handlers are
- * installed.
+ * enabling SCIs to prevent interrupts from occurring before the handlers
+ * are installed.
*/
status = acpi_ev_fixed_event_initialize();
if (ACPI_FAILURE(status)) {
acpi_status status;
/*
- * Initialize the structure that keeps track of fixed event handlers
- * and enable the fixed events.
+ * Initialize the structure that keeps track of fixed event handlers and
+ * enable the fixed events.
*/
for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) {
acpi_gbl_fixed_event_handlers[i].handler = NULL;
/*
* Read the fixed feature status and enable registers, as all the cases
- * depend on their values. Ignore errors here.
+ * depend on their values. Ignore errors here.
*/
(void)acpi_hw_register_read(ACPI_REGISTER_PM1_STATUS, &fixed_status);
(void)acpi_hw_register_read(ACPI_REGISTER_PM1_ENABLE, &fixed_enable);
status_register_id, 1);
/*
- * Make sure we've got a handler. If not, report an error.
- * The event is disabled to prevent further interrupts.
+ * Make sure we've got a handler. If not, report an error. The event is
+ * disabled to prevent further interrupts.
*/
if (NULL == acpi_gbl_fixed_event_handlers[event].handler) {
(void)acpi_set_register(acpi_gbl_fixed_event_info[event].
*/
#include <acpi/acpi.h>
-#include <acpi/acevents.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acevents.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_EVENTS
ACPI_MODULE_NAME("evgpe")
(1 <<
(gpe_event_info->gpe_number - gpe_register_info->base_gpe_number));
- /* 1) Disable case. Simply clear all enable bits */
+ /* 1) Disable case. Simply clear all enable bits */
if (type == ACPI_GPE_DISABLE) {
ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake,
return_ACPI_STATUS(AE_OK);
}
- /* 2) Enable case. Set/Clear the appropriate enable bits */
+ /* 2) Enable case. Set/Clear the appropriate enable bits */
switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) {
case ACPI_GPE_TYPE_WAKE:
*
* FUNCTION: acpi_ev_get_gpe_event_info
*
- * PARAMETERS: gpe_device - Device node. NULL for GPE0/GPE1
+ * PARAMETERS: gpe_device - Device node. NULL for GPE0/GPE1
* gpe_number - Raw GPE number
*
* RETURN: A GPE event_info struct. NULL if not a valid GPE
*
* RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
*
- * DESCRIPTION: Detect if any GP events have occurred. This function is
+ * DESCRIPTION: Detect if any GP events have occurred. This function is
* executed at interrupt level.
*
******************************************************************************/
/*
* We need to obtain the GPE lock for both the data structs and registers
- * Note: Not necessary to obtain the hardware lock, since the GPE registers
- * are owned by the gpe_lock.
+ * Note: Not necessary to obtain the hardware lock, since the GPE
+ * registers are owned by the gpe_lock.
*/
flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
gpe_block = gpe_xrupt_list->gpe_block_list_head;
while (gpe_block) {
/*
- * Read all of the 8-bit GPE status and enable registers
- * in this GPE block, saving all of them.
- * Find all currently active GP events.
+ * Read all of the 8-bit GPE status and enable registers in this GPE
+ * block, saving all of them. Find all currently active GP events.
*/
for (i = 0; i < gpe_block->register_count; i++) {
/* Read the Status Register */
status =
- acpi_hw_low_level_read(ACPI_GPE_REGISTER_WIDTH,
- &status_reg,
- &gpe_register_info->
- status_address);
+ acpi_read(&status_reg,
+ &gpe_register_info->status_address);
if (ACPI_FAILURE(status)) {
goto unlock_and_exit;
}
/* Read the Enable Register */
status =
- acpi_hw_low_level_read(ACPI_GPE_REGISTER_WIDTH,
- &enable_reg,
- &gpe_register_info->
- enable_address);
+ acpi_read(&enable_reg,
+ &gpe_register_info->enable_address);
if (ACPI_FAILURE(status)) {
goto unlock_and_exit;
}
(void)acpi_ev_enable_gpe(gpe_event_info, FALSE);
/*
- * Take a snapshot of the GPE info for this level - we copy the
- * info to prevent a race condition with remove_handler/remove_block.
+ * Take a snapshot of the GPE info for this level - we copy the info to
+ * prevent a race condition with remove_handler/remove_block.
*/
ACPI_MEMCPY(&local_gpe_event_info, gpe_event_info,
sizeof(struct acpi_gpe_event_info));
}
/*
- * Must check for control method type dispatch one more
- * time to avoid race with ev_gpe_install_handler
+ * Must check for control method type dispatch one more time to avoid a
+ * race with ev_gpe_install_handler
*/
if ((local_gpe_event_info.flags & ACPI_GPE_DISPATCH_MASK) ==
ACPI_GPE_DISPATCH_METHOD) {
if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
ACPI_GPE_LEVEL_TRIGGERED) {
/*
- * GPE is level-triggered, we clear the GPE status bit after
- * handling the event.
+ * GPE is level-triggered, we clear the GPE status bit after handling
+ * the event.
*/
status = acpi_hw_clear_gpe(gpe_event_info);
if (ACPI_FAILURE(status)) {
acpi_os_gpe_count(gpe_number);
/*
- * If edge-triggered, clear the GPE status bit now. Note that
+ * If edge-triggered, clear the GPE status bit now. Note that
* level-triggered events are cleared after the GPE is serviced.
*/
if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
/*
* Invoke the installed handler (at interrupt level)
- * Ignore return status for now. TBD: leave GPE disabled on error?
+ * Ignore return status for now.
+ * TBD: leave GPE disabled on error?
*/
(void)gpe_event_info->dispatch.handler->address(gpe_event_info->
dispatch.
gpe_number));
/*
- * Disable the GPE. The GPE will remain disabled until the ACPI
+ * Disable the GPE. The GPE will remain disabled until the ACPICA
* Core Subsystem is restarted, or a handler is installed.
*/
status = acpi_ev_disable_gpe(gpe_event_info);
*/
#include <acpi/acpi.h>
-#include <acpi/acevents.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acevents.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_EVENTS
ACPI_MODULE_NAME("evgpeblk")
* FUNCTION: acpi_ev_walk_gpe_list
*
* PARAMETERS: gpe_walk_callback - Routine called for each GPE block
+ * Context - Value passed to callback
*
* RETURN: Status
*
*
******************************************************************************/
-acpi_status acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback)
+acpi_status
+acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback, void *context)
{
struct acpi_gpe_block_info *gpe_block;
struct acpi_gpe_xrupt_info *gpe_xrupt_info;
/* One callback per GPE block */
- status = gpe_walk_callback(gpe_xrupt_info, gpe_block);
+ status =
+ gpe_walk_callback(gpe_xrupt_info, gpe_block,
+ context);
if (ACPI_FAILURE(status)) {
+ if (status == AE_CTRL_END) { /* Callback abort */
+ status = AE_OK;
+ }
goto unlock_and_exit;
}
acpi_status
acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
- struct acpi_gpe_block_info *gpe_block)
+ struct acpi_gpe_block_info *gpe_block,
+ void *context)
{
struct acpi_gpe_event_info *gpe_event_info;
u32 i;
(gpe_block->block_base_number +
(gpe_block->register_count * 8)))) {
/*
- * Not valid for this GPE block, just ignore it
- * However, it may be valid for a different GPE block, since GPE0 and GPE1
- * methods both appear under \_GPE.
+ * Not valid for this GPE block, just ignore it. However, it may be
+ * valid for a different GPE block, since GPE0 and GPE1 methods both
+ * appear under \_GPE.
*/
return_ACPI_STATUS(AE_OK);
}
/*
- * Now we can add this information to the gpe_event_info block
- * for use during dispatch of this GPE. Default type is RUNTIME, although
- * this may change when the _PRW methods are executed later.
+ * Now we can add this information to the gpe_event_info block for use
+ * during dispatch of this GPE. Default type is RUNTIME, although this may
+ * change when the _PRW methods are executed later.
*/
gpe_event_info =
&gpe_block->event_info[gpe_number - gpe_block->block_base_number];
gpe_block = gpe_info->gpe_block;
/*
- * The _PRW object must return a package, we are only interested
- * in the first element
+ * The _PRW object must return a package, we are only interested in the
+ * first element
*/
obj_desc = pkg_desc->package.elements[0];
/*
* Is this GPE within this block?
*
- * TRUE iff these conditions are true:
+ * TRUE if and only if these conditions are true:
* 1) The GPE devices match.
* 2) The GPE index(number) is within the range of the Gpe Block
* associated with the GPE device.
if (ACPI_FAILURE(status)) {
goto cleanup;
}
+
status =
acpi_ev_update_gpe_enable_masks(gpe_event_info,
ACPI_GPE_DISABLE);
* RETURN: A GPE interrupt block
*
* DESCRIPTION: Get or Create a GPE interrupt block. There is one interrupt
- * block per unique interrupt level used for GPEs.
- * Should be called only when the GPE lists are semaphore locked
- * and not subject to change.
+ * block per unique interrupt level used for GPEs. Should be
+ * called only when the GPE lists are semaphore locked and not
+ * subject to change.
*
******************************************************************************/
*
* FUNCTION: acpi_ev_install_gpe_block
*
- * PARAMETERS: gpe_block - New GPE block
- * interrupt_number - Xrupt to be associated with this GPE block
+ * PARAMETERS: gpe_block - New GPE block
+ * interrupt_number - Xrupt to be associated with this
+ * GPE block
*
* RETURN: Status
*
*
* FUNCTION: acpi_ev_delete_gpe_block
*
- * PARAMETERS: gpe_block - Existing GPE block
+ * PARAMETERS: gpe_block - Existing GPE block
*
* RETURN: Status
*
/* Disable all GPEs in this block */
- status = acpi_hw_disable_gpe_block(gpe_block->xrupt_block, gpe_block);
+ status =
+ acpi_hw_disable_gpe_block(gpe_block->xrupt_block, gpe_block, NULL);
if (!gpe_block->previous && !gpe_block->next) {
acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
}
+ acpi_current_gpe_count -=
+ gpe_block->register_count * ACPI_GPE_REGISTER_WIDTH;
+
/* Free the gpe_block */
ACPI_FREE(gpe_block->register_info);
/*
* Initialize the GPE Register and Event structures. A goal of these
- * tables is to hide the fact that there are two separate GPE register sets
- * in a given GPE hardware block, the status registers occupy the first half,
- * and the enable registers occupy the second half.
+ * tables is to hide the fact that there are two separate GPE register
+ * sets in a given GPE hardware block, the status registers occupy the
+ * first half, and the enable registers occupy the second half.
*/
this_register = gpe_register_info;
this_event = gpe_event_info;
ACPI_GPE_REGISTER_WIDTH;
this_register->enable_address.bit_width =
ACPI_GPE_REGISTER_WIDTH;
- this_register->status_address.bit_offset =
- ACPI_GPE_REGISTER_WIDTH;
- this_register->enable_address.bit_offset =
- ACPI_GPE_REGISTER_WIDTH;
+ this_register->status_address.bit_offset = 0;
+ this_register->enable_address.bit_offset = 0;
/* Init the event_info for each GPE within this register */
/* Disable all GPEs within this register */
- status = acpi_hw_low_level_write(ACPI_GPE_REGISTER_WIDTH, 0x00,
- &this_register->
- enable_address);
+ status = acpi_write(0x00, &this_register->enable_address);
if (ACPI_FAILURE(status)) {
goto error_exit;
}
/* Clear any pending GPE events within this register */
- status = acpi_hw_low_level_write(ACPI_GPE_REGISTER_WIDTH, 0xFF,
- &this_register->
- status_address);
+ status = acpi_write(0xFF, &this_register->status_address);
if (ACPI_FAILURE(status)) {
goto error_exit;
}
gpe_device->name.ascii, gpe_block->register_count,
interrupt_number));
+ /* Update global count of currently available GPEs */
+
+ acpi_current_gpe_count += register_count * ACPI_GPE_REGISTER_WIDTH;
return_ACPI_STATUS(AE_OK);
}
/* Enable all valid runtime GPEs found above */
- status = acpi_hw_enable_runtime_gpe_block(NULL, gpe_block);
+ status = acpi_hw_enable_runtime_gpe_block(NULL, gpe_block, NULL);
if (ACPI_FAILURE(status)) {
ACPI_ERROR((AE_INFO, "Could not enable GPEs in GpeBlock %p",
gpe_block));
*/
#include <acpi/acpi.h>
-#include <acpi/acevents.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acinterp.h>
+#include "accommon.h"
+#include "acevents.h"
+#include "acnamesp.h"
+#include "acinterp.h"
#define _COMPONENT ACPI_EVENTS
ACPI_MODULE_NAME("evmisc")
-/* Pointer to FACS needed for the Global Lock */
-static struct acpi_table_facs *facs = NULL;
-
/* Local prototypes */
-
static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context);
static u32 acpi_ev_global_lock_handler(void *context);
break;
default:
+
/* All other types are not supported */
+
return (AE_TYPE);
}
}
acpi_ut_delete_generic_state(notify_info);
}
} else {
- /*
- * There is no notify handler (per-device or system) for this device.
- */
+ /* There is no notify handler (per-device or system) for this device */
+
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"No notify handler for Notify (%4.4s, %X) node %p\n",
acpi_ut_get_node_name(node), notify_value,
ACPI_FUNCTION_ENTRY();
/*
- * We will invoke a global notify handler if installed.
- * This is done _before_ we invoke the per-device handler attached
- * to the device.
+ * We will invoke a global notify handler if installed. This is done
+ * _before_ we invoke the per-device handler attached to the device.
*/
if (notify_info->notify.value <= ACPI_MAX_SYS_NOTIFY) {
* If we don't get it now, it will be marked pending and we will
* take another interrupt when it becomes free.
*/
- ACPI_ACQUIRE_GLOBAL_LOCK(facs, acquired);
+ ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_FACS, acquired);
if (acquired) {
/* Got the lock, now wake all threads waiting for it */
ACPI_FUNCTION_TRACE(ev_init_global_lock_handler);
- status = acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS,
- ACPI_CAST_INDIRECT_PTR(struct
- acpi_table_header,
- &facs));
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
+ /* Attempt installation of the global lock handler */
- acpi_gbl_global_lock_present = TRUE;
status = acpi_install_fixed_event_handler(ACPI_EVENT_GLOBAL,
acpi_ev_global_lock_handler,
NULL);
/*
- * If the global lock does not exist on this platform, the attempt
- * to enable GBL_STATUS will fail (the GBL_ENABLE bit will not stick)
- * Map to AE_OK, but mark global lock as not present.
- * Any attempt to actually use the global lock will be flagged
- * with an error.
+ * If the global lock does not exist on this platform, the attempt to
+ * enable GBL_STATUS will fail (the GBL_ENABLE bit will not stick).
+ * Map to AE_OK, but mark global lock as not present. Any attempt to
+ * actually use the global lock will be flagged with an error.
*/
if (status == AE_NO_HARDWARE_RESPONSE) {
ACPI_ERROR((AE_INFO,
"No response from Global Lock hardware, disabling lock"));
acpi_gbl_global_lock_present = FALSE;
- status = AE_OK;
+ return_ACPI_STATUS(AE_OK);
}
+ acpi_gbl_global_lock_present = TRUE;
return_ACPI_STATUS(status);
}
}
/*
- * Make sure that a global lock actually exists. If not, just treat
- * the lock as a standard mutex.
+ * Make sure that a global lock actually exists. If not, just treat the
+ * lock as a standard mutex.
*/
if (!acpi_gbl_global_lock_present) {
acpi_gbl_global_lock_acquired = TRUE;
/* Attempt to acquire the actual hardware lock */
- ACPI_ACQUIRE_GLOBAL_LOCK(facs, acquired);
+ ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_FACS, acquired);
if (acquired) {
/* We got the lock */
/* Allow any thread to release the lock */
- ACPI_RELEASE_GLOBAL_LOCK(facs, pending);
+ ACPI_RELEASE_GLOBAL_LOCK(acpi_gbl_FACS, pending);
/*
* If the pending bit was set, we must write GBL_RLS to the control
if (acpi_gbl_events_initialized) {
/*
- * Disable all event-related functionality.
- * In all cases, on error, print a message but obviously we don't abort.
+ * Disable all event-related functionality. In all cases, on error,
+ * print a message but obviously we don't abort.
*/
/* Disable all fixed events */
/* Disable all GPEs in all GPE blocks */
- status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block);
+ status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block, NULL);
/* Remove SCI handler */
/* Deallocate all handler objects installed within GPE info structs */
- status = acpi_ev_walk_gpe_list(acpi_ev_delete_gpe_handlers);
+ status = acpi_ev_walk_gpe_list(acpi_ev_delete_gpe_handlers, NULL);
/* Return to original mode if necessary */
*/
#include <acpi/acpi.h>
-#include <acpi/acevents.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acinterp.h>
+#include "accommon.h"
+#include "acevents.h"
+#include "acnamesp.h"
+#include "acinterp.h"
#define _COMPONENT ACPI_EVENTS
ACPI_MODULE_NAME("evregion")
-#define ACPI_NUM_DEFAULT_SPACES 4
-static u8 acpi_gbl_default_address_spaces[ACPI_NUM_DEFAULT_SPACES] = {
- ACPI_ADR_SPACE_SYSTEM_MEMORY,
- ACPI_ADR_SPACE_SYSTEM_IO,
- ACPI_ADR_SPACE_PCI_CONFIG,
- ACPI_ADR_SPACE_DATA_TABLE
-};
/* Local prototypes */
-
static acpi_status
acpi_ev_reg_run(acpi_handle obj_handle,
u32 level, void *context, void **return_value);
acpi_ev_install_handler(acpi_handle obj_handle,
u32 level, void *context, void **return_value);
+/* These are the address spaces that will get default handlers */
+
+#define ACPI_NUM_DEFAULT_SPACES 4
+
+static u8 acpi_gbl_default_address_spaces[ACPI_NUM_DEFAULT_SPACES] = {
+ ACPI_ADR_SPACE_SYSTEM_MEMORY,
+ ACPI_ADR_SPACE_SYSTEM_IO,
+ ACPI_ADR_SPACE_PCI_CONFIG,
+ ACPI_ADR_SPACE_DATA_TABLE
+};
+
/*******************************************************************************
*
* FUNCTION: acpi_ev_install_region_handlers
}
/*
- * All address spaces (PCI Config, EC, SMBus) are scope dependent
- * and registration must occur for a specific device.
+ * All address spaces (PCI Config, EC, SMBus) are scope dependent and
+ * registration must occur for a specific device.
*
- * In the case of the system memory and IO address spaces there is currently
- * no device associated with the address space. For these we use the root.
+ * In the case of the system memory and IO address spaces there is
+ * currently no device associated with the address space. For these we
+ * use the root.
*
- * We install the default PCI config space handler at the root so
- * that this space is immediately available even though the we have
- * not enumerated all the PCI Root Buses yet. This is to conform
- * to the ACPI specification which states that the PCI config
- * space must be always available -- even though we are nowhere
- * near ready to find the PCI root buses at this point.
+ * We install the default PCI config space handler at the root so that
+ * this space is immediately available even though the we have not
+ * enumerated all the PCI Root Buses yet. This is to conform to the ACPI
+ * specification which states that the PCI config space must be always
+ * available -- even though we are nowhere near ready to find the PCI root
+ * buses at this point.
*
* NOTE: We ignore AE_ALREADY_EXISTS because this means that a handler
* has already been installed (via acpi_install_address_space_handler).
return_ACPI_STATUS(status);
}
- /*
- * Run the _REG methods for op_regions in each default address space
- */
- for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) {
+ /* Run the _REG methods for op_regions in each default address space */
- /* TBD: Make sure handler is the DEFAULT handler, otherwise
+ for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) {
+ /*
+ * TBD: Make sure handler is the DEFAULT handler, otherwise
* _REG will have already been run.
*/
status = acpi_ev_execute_reg_methods(acpi_gbl_root_node,
}
/*
- * It may be the case that the region has never been initialized
+ * It may be the case that the region has never been initialized.
* Some types of regions require special init code
*/
if (!(region_obj->region.flags & AOPOBJ_SETUP_COMPLETE)) {
- /*
- * This region has not been initialized yet, do it
- */
+
+ /* This region has not been initialized yet, do it */
+
region_setup = handler_desc->address_space.setup;
if (!region_setup) {
}
/*
- * We must exit the interpreter because the region
- * setup will potentially execute control methods
- * (e.g., _REG method for this region)
+ * We must exit the interpreter because the region setup will
+ * potentially execute control methods (for example, the _REG method
+ * for this region)
*/
acpi_ex_exit_interpreter();
return_ACPI_STATUS(status);
}
- /*
- * Region initialization may have been completed by region_setup
- */
+ /* Region initialization may have been completed by region_setup */
+
if (!(region_obj->region.flags & AOPOBJ_SETUP_COMPLETE)) {
region_obj->region.flags |= AOPOBJ_SETUP_COMPLETE;
}
/*
- * If the region has been activated, call the setup handler
- * with the deactivate notification
+ * If the region has been activated, call the setup handler with
+ * the deactivate notification
*/
if (region_obj->region.flags & AOPOBJ_SETUP_COMPLETE) {
region_setup = handler_obj->address_space.setup;
}
/*
- * We only care about regions.and objects
- * that are allowed to have address space handlers
+ * We only care about regions and objects that are allowed to have
+ * address space handlers
*/
if ((node->type != ACPI_TYPE_DEVICE) &&
(node->type != ACPI_TYPE_REGION) && (node != acpi_gbl_root_node)) {
/*
* Since the object we found it on was a device, then it
* means that someone has already installed a handler for
- * the branch of the namespace from this device on. Just
+ * the branch of the namespace from this device on. Just
* bail out telling the walk routine to not traverse this
- * branch. This preserves the scoping rule for handlers.
+ * branch. This preserves the scoping rule for handlers.
*/
return (AE_CTRL_DEPTH);
}
}
/*
- * As long as the device didn't have a handler for this
- * space we don't care about it. We just ignore it and
- * proceed.
+ * As long as the device didn't have a handler for this space we
+ * don't care about it. We just ignore it and proceed.
*/
return (AE_OK);
}
/* Object is a Region */
if (obj_desc->region.space_id != handler_obj->address_space.space_id) {
- /*
- * This region is for a different address space
- * -- just ignore it
- */
+
+ /* This region is for a different address space, just ignore it */
+
return (AE_OK);
}
/*
- * Now we have a region and it is for the handler's address
- * space type.
+ * Now we have a region and it is for the handler's address space type.
*
* First disconnect region for any previous handler (if any)
*/
ACPI_FUNCTION_TRACE(ev_install_space_handler);
/*
- * This registration is valid for only the types below
- * and the root. This is where the default handlers
- * get placed.
+ * This registration is valid for only the types below and the root. This
+ * is where the default handlers get placed.
*/
if ((node->type != ACPI_TYPE_DEVICE) &&
(node->type != ACPI_TYPE_PROCESSOR) &&
obj_desc = acpi_ns_get_attached_object(node);
if (obj_desc) {
/*
- * The attached device object already exists.
- * Make sure the handler is not already installed.
+ * The attached device object already exists. Make sure the handler
+ * is not already installed.
*/
handler_obj = obj_desc->device.handler;
handler) {
/*
* It is (relatively) OK to attempt to install the SAME
- * handler twice. This can easily happen
- * with PCI_Config space.
+ * handler twice. This can easily happen with the
+ * PCI_Config space.
*/
status = AE_SAME_HANDLER;
goto unlock_and_exit;
/*
* Install the handler
*
- * At this point there is no existing handler.
- * Just allocate the object for the handler and link it
- * into the list.
+ * At this point there is no existing handler. Just allocate the object
+ * for the handler and link it into the list.
*/
handler_obj =
acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_ADDRESS_HANDLER);
ACPI_FUNCTION_TRACE(ev_execute_reg_methods);
/*
- * Run all _REG methods for all Operation Regions for this
- * space ID. This is a separate walk in order to handle any
- * interdependencies between regions and _REG methods. (i.e. handlers
- * must be installed for all regions of this Space ID before we
- * can run any _REG methods)
+ * Run all _REG methods for all Operation Regions for this space ID. This
+ * is a separate walk in order to handle any interdependencies between
+ * regions and _REG methods. (i.e. handlers must be installed for all
+ * regions of this Space ID before we can run any _REG methods)
*/
status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX,
ACPI_NS_WALK_UNLOCK, acpi_ev_reg_run,
}
/*
- * We only care about regions.and objects
- * that are allowed to have address space handlers
+ * We only care about regions.and objects that are allowed to have address
+ * space handlers
*/
if ((node->type != ACPI_TYPE_REGION) && (node != acpi_gbl_root_node)) {
return (AE_OK);
/* Object is a Region */
if (obj_desc->region.space_id != space_id) {
- /*
- * This region is for a different address space
- * -- just ignore it
- */
+
+ /* This region is for a different address space, just ignore it */
+
return (AE_OK);
}
*/
#include <acpi/acpi.h>
-#include <acpi/acevents.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acevents.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_EVENTS
ACPI_MODULE_NAME("evrgnini")
if (ACPI_FAILURE(status)) {
if (status == AE_SAME_HANDLER) {
/*
- * It is OK if the handler is already installed on the root
- * bridge. Still need to return a context object for the
- * new PCI_Config operation region, however.
+ * It is OK if the handler is already installed on the
+ * root bridge. Still need to return a context object
+ * for the new PCI_Config operation region, however.
*/
status = AE_OK;
} else {
}
/*
- * For PCI_Config space access, we need the segment, bus,
- * device and function numbers. Acquire them here.
+ * For PCI_Config space access, we need the segment, bus, device and
+ * function numbers. Acquire them here.
*
* Find the parent device object. (This allows the operation region to be
* within a subscope under the device, such as a control method.)
}
/*
- * Get the PCI device and function numbers from the _ADR object
- * contained in the parent's scope.
+ * Get the PCI device and function numbers from the _ADR object contained
+ * in the parent's scope.
*/
status =
acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, pci_device_node,
&pci_value);
/*
- * The default is zero, and since the allocation above zeroed
- * the data, just do nothing on failure.
+ * The default is zero, and since the allocation above zeroed the data,
+ * just do nothing on failure.
*/
if (ACPI_SUCCESS(status)) {
pci_id->device = ACPI_HIWORD(ACPI_LODWORD(pci_value));
struct acpi_compatible_id_list *cid;
u32 i;
- /*
- * Get the _HID and check for a PCI Root Bridge
- */
+ /* Get the _HID and check for a PCI Root Bridge */
+
status = acpi_ut_execute_HID(node, &hid);
if (ACPI_FAILURE(status)) {
return (FALSE);
return (TRUE);
}
- /*
- * The _HID did not match.
- * Get the _CID and check for a PCI Root Bridge
- */
+ /* The _HID did not match. Get the _CID and check for a PCI Root Bridge */
+
status = acpi_ut_execute_CID(node, &cid);
if (ACPI_FAILURE(status)) {
return (FALSE);
* Get the appropriate address space handler for a newly
* created region.
*
- * This also performs address space specific initialization. For
+ * This also performs address space specific initialization. For
* example, PCI regions must have an _ADR object that contains
- * a PCI address in the scope of the definition. This address is
+ * a PCI address in the scope of the definition. This address is
* required to perform an access to PCI config space.
*
* MUTEX: Interpreter should be unlocked, because we may run the _REG
if (ACPI_SUCCESS(status)) {
/*
* The _REG method is optional and there can be only one per region
- * definition. This will be executed when the handler is attached
+ * definition. This will be executed when the handler is attached
* or removed
*/
region_obj2->extra.method_REG = method_node;
}
}
- /*
- * This node does not have the handler we need;
- * Pop up one level
- */
+ /* This node does not have the handler we need; Pop up one level */
+
node = acpi_ns_get_parent_node(node);
}
*/
#include <acpi/acpi.h>
-#include <acpi/acevents.h>
+#include "accommon.h"
+#include "acevents.h"
#define _COMPONENT ACPI_EVENTS
ACPI_MODULE_NAME("evsci")
* if this interrupt handler is installed, ACPI is enabled.
*/
- /*
- * GPEs:
- * Check for and dispatch any GPEs that have occurred
- */
+ /* GPEs: Check for and dispatch any GPEs that have occurred */
+
interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list);
return_UINT32(interrupt_handled);
* RETURN: E_OK if handler uninstalled OK, E_ERROR if handler was not
* installed to begin with
*
- * DESCRIPTION: Remove the SCI interrupt handler. No further SCIs will be
+ * DESCRIPTION: Remove the SCI interrupt handler. No further SCIs will be
* taken.
*
* Note: It doesn't seem important to disable all events or set the event
- * enable registers to their original values. The OS should disable
+ * enable registers to their original values. The OS should disable
* the SCI interrupt level when the handler is removed, so no more
* events will come in.
*
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acevents.h>
-#include <acpi/acinterp.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acevents.h"
+#include "acinterp.h"
#define _COMPONENT ACPI_EVENTS
ACPI_MODULE_NAME("evxface")
/*
* Root Object:
* Registering a notify handler on the root object indicates that the
- * caller wishes to receive notifications for all objects. Note that
+ * caller wishes to receive notifications for all objects. Note that
* only one <external> global handler can be regsitered (per notify type).
*/
if (device == ACPI_ROOT_OBJECT) {
*/
#include <acpi/acpi.h>
-#include <acpi/acevents.h>
-#include <acpi/acnamesp.h>
-#include <acpi/actables.h>
+#include "accommon.h"
+#include "acevents.h"
+#include "acnamesp.h"
+#include "actables.h"
#define _COMPONENT ACPI_EVENTS
ACPI_MODULE_NAME("evxfevnt")
+/* Local prototypes */
+acpi_status
+acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+ struct acpi_gpe_block_info *gpe_block, void *context);
+
/*******************************************************************************
*
* FUNCTION: acpi_enable
* DESCRIPTION: Transfers the system into ACPI mode.
*
******************************************************************************/
+
acpi_status acpi_enable(void)
{
acpi_status status = AE_OK;
}
/*
- * Enable the requested fixed event (by writing a one to the
- * enable register bit)
+ * Enable the requested fixed event (by writing a one to the enable
+ * register bit)
*/
status =
acpi_set_register(acpi_gbl_fixed_event_info[event].
}
/*
- * Disable the requested fixed event (by writing a zero to the
- * enable register bit)
+ * Disable the requested fixed event (by writing a zero to the enable
+ * register bit)
*/
status =
acpi_set_register(acpi_gbl_fixed_event_info[event].
}
/*
- * Clear the requested fixed event (By writing a one to the
- * status register bit)
+ * Clear the requested fixed event (By writing a one to the status
+ * register bit)
*/
status =
acpi_set_register(acpi_gbl_fixed_event_info[event].
}
ACPI_EXPORT_SYMBOL(acpi_remove_gpe_block)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_gpe_device
+ *
+ * PARAMETERS: Index - System GPE index (0-current_gpe_count)
+ * gpe_device - Where the parent GPE Device is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Obtain the GPE device associated with the input index. A NULL
+ * gpe device indicates that the gpe number is contained in one of
+ * the FADT-defined gpe blocks. Otherwise, the GPE block device.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_get_gpe_device(u32 index, acpi_handle *gpe_device)
+{
+ struct acpi_gpe_device_info info;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_get_gpe_device);
+
+ if (!gpe_device) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ if (index >= acpi_current_gpe_count) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ /* Setup and walk the GPE list */
+
+ info.index = index;
+ info.status = AE_NOT_EXIST;
+ info.gpe_device = NULL;
+ info.next_block_base_index = 0;
+
+ status = acpi_ev_walk_gpe_list(acpi_ev_get_gpe_device, &info);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ *gpe_device = info.gpe_device;
+ return_ACPI_STATUS(info.status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_gpe_device)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_get_gpe_device
+ *
+ * PARAMETERS: GPE_WALK_CALLBACK
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Matches the input GPE index (0-current_gpe_count) with a GPE
+ * block device. NULL if the GPE is one of the FADT-defined GPEs.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+ struct acpi_gpe_block_info *gpe_block, void *context)
+{
+ struct acpi_gpe_device_info *info = context;
+
+ /* Increment Index by the number of GPEs in this block */
+
+ info->next_block_base_index +=
+ (gpe_block->register_count * ACPI_GPE_REGISTER_WIDTH);
+
+ if (info->index < info->next_block_base_index) {
+ /*
+ * The GPE index is within this block, get the node. Leave the node
+ * NULL for the FADT-defined GPEs
+ */
+ if ((gpe_block->node)->type == ACPI_TYPE_DEVICE) {
+ info->gpe_device = gpe_block->node;
+ }
+
+ info->status = AE_OK;
+ return (AE_CTRL_END);
+ }
+
+ return (AE_OK);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_disable_all_gpes
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Disable and clear all GPEs in all GPE blocks
+ *
+ ******************************************************************************/
+
+acpi_status acpi_disable_all_gpes(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_disable_all_gpes);
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_hw_disable_all_gpes();
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+
+ return_ACPI_STATUS(status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_enable_all_runtime_gpes
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Enable all "runtime" GPEs, in all GPE blocks
+ *
+ ******************************************************************************/
+
+acpi_status acpi_enable_all_runtime_gpes(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_enable_all_runtime_gpes);
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_hw_enable_all_runtime_gpes();
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+
+ return_ACPI_STATUS(status);
+}
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acevents.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acevents.h"
#define _COMPONENT ACPI_EVENTS
ACPI_MODULE_NAME("evxfregn")
*/
#include <acpi/acpi.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-#include <acpi/actables.h>
-#include <acpi/acdispat.h>
+#include "accommon.h"
+#include "acinterp.h"
+#include "acnamesp.h"
+#include "actables.h"
+#include "acdispat.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exconfig")
*/
#include <acpi/acpi.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
+#include "accommon.h"
+#include "acinterp.h"
+#include "amlcode.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exconvrt")
*/
#include <acpi/acpi.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acinterp.h"
+#include "amlcode.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("excreate")
*/
#include <acpi/acpi.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acinterp.h"
+#include "amlcode.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exdump")
*/
#include <acpi/acpi.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
+#include "accommon.h"
+#include "acdispat.h"
+#include "acinterp.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exfield")
*/
#include <acpi/acpi.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-#include <acpi/acevents.h>
-#include <acpi/acdispat.h>
+#include "accommon.h"
+#include "acinterp.h"
+#include "amlcode.h"
+#include "acevents.h"
+#include "acdispat.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exfldio")
return_ACPI_STATUS(status);
}
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "I/O to Data Register: ValuePtr %p\n",
- value));
-
if (read_write == ACPI_READ) {
/* Read the datum from the data_register */
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Read from Data Register\n"));
+
status =
acpi_ex_extract_from_field(obj_desc->index_field.
data_obj, value,
} else {
/* Write the datum to the data_register */
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Write to Data Register: Value %8.8X%8.8X\n",
+ ACPI_FORMAT_UINT64(*value)));
+
status =
acpi_ex_insert_into_field(obj_desc->index_field.
data_obj, value,
*/
#include <acpi/acpi.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-#include <acpi/amlresrc.h>
+#include "accommon.h"
+#include "acinterp.h"
+#include "amlcode.h"
+#include "amlresrc.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exmisc")
*/
#include <acpi/acpi.h>
-#include <acpi/acinterp.h>
-#include <acpi/acevents.h>
+#include "accommon.h"
+#include "acinterp.h"
+#include "acevents.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exmutex")
*/
#include <acpi/acpi.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
+#include "accommon.h"
+#include "acinterp.h"
+#include "amlcode.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exnames")
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "acdispat.h"
+#include "acinterp.h"
+#include "amlcode.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exoparg1")
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
-#include <acpi/acinterp.h>
-#include <acpi/acevents.h>
-#include <acpi/amlcode.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "acinterp.h"
+#include "acevents.h"
+#include "amlcode.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exoparg2")
*/
#include <acpi/acpi.h>
-#include <acpi/acinterp.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
+#include "accommon.h"
+#include "acinterp.h"
+#include "acparser.h"
+#include "amlcode.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exoparg3")
*/
#include <acpi/acpi.h>
-#include <acpi/acinterp.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
+#include "accommon.h"
+#include "acinterp.h"
+#include "acparser.h"
+#include "amlcode.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exoparg6")
*/
#include <acpi/acpi.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acinterp.h"
+#include "amlcode.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exprep")
*/
#include <acpi/acpi.h>
-#include <acpi/acinterp.h>
+#include "accommon.h"
+#include "acinterp.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exregion")
*/
#include <acpi/acpi.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acdispat.h"
+#include "acinterp.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exresnte")
*/
#include <acpi/acpi.h>
-#include <acpi/amlcode.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "amlcode.h"
+#include "acdispat.h"
+#include "acinterp.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exresolv")
*/
#include <acpi/acpi.h>
-#include <acpi/amlcode.h>
-#include <acpi/acparser.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "amlcode.h"
+#include "acparser.h"
+#include "acinterp.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exresop")
*/
#include <acpi/acpi.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acdispat.h"
+#include "acinterp.h"
+#include "amlcode.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exstore")
*/
#include <acpi/acpi.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
+#include "accommon.h"
+#include "acinterp.h"
+#include "amlcode.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exstoren")
*/
#include <acpi/acpi.h>
-#include <acpi/acinterp.h>
+#include "accommon.h"
+#include "acinterp.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exstorob")
*/
#include <acpi/acpi.h>
-#include <acpi/acinterp.h>
+#include "accommon.h"
+#include "acinterp.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exsystem")
#define DEFINE_AML_GLOBALS
#include <acpi/acpi.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
+#include "accommon.h"
+#include "acinterp.h"
+#include "amlcode.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exutils")
*/
#include <acpi/acpi.h>
+#include "accommon.h"
#define _COMPONENT ACPI_HARDWARE
ACPI_MODULE_NAME("hwacpi")
*/
#include <acpi/acpi.h>
-#include <acpi/acevents.h>
+#include "accommon.h"
+#include "acevents.h"
#define _COMPONENT ACPI_HARDWARE
ACPI_MODULE_NAME("hwgpe")
/* Local prototypes */
static acpi_status
acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
- struct acpi_gpe_block_info *gpe_block);
+ struct acpi_gpe_block_info *gpe_block,
+ void *context);
/******************************************************************************
*
/* Get current value of the enable register that contains this GPE */
- status = acpi_hw_low_level_read(ACPI_GPE_REGISTER_WIDTH, &enable_mask,
- &gpe_register_info->enable_address);
+ status = acpi_read(&enable_mask, &gpe_register_info->enable_address);
if (ACPI_FAILURE(status)) {
return (status);
}
/* Write the updated enable mask */
- status = acpi_hw_low_level_write(ACPI_GPE_REGISTER_WIDTH, enable_mask,
- &gpe_register_info->enable_address);
-
+ status = acpi_write(enable_mask, &gpe_register_info->enable_address);
return (status);
}
/* Write the entire GPE (runtime) enable register */
- status = acpi_hw_low_level_write(8, gpe_register_info->enable_for_run,
- &gpe_register_info->enable_address);
+ status = acpi_write(gpe_register_info->enable_for_run,
+ &gpe_register_info->enable_address);
return (status);
}
* Write a one to the appropriate bit in the status register to
* clear this GPE.
*/
- status = acpi_hw_low_level_write(8, register_bit,
- &gpe_event_info->register_info->
- status_address);
+ status = acpi_write(register_bit,
+ &gpe_event_info->register_info->status_address);
return (status);
}
/* GPE currently active (status bit == 1)? */
- status =
- acpi_hw_low_level_read(8, &in_byte,
- &gpe_register_info->status_address);
+ status = acpi_read(&in_byte, &gpe_register_info->status_address);
if (ACPI_FAILURE(status)) {
goto unlock_and_exit;
}
******************************************************************************/
acpi_status
-acpi_hw_disable_gpe_block(struct acpi_gpe_xrupt_info * gpe_xrupt_info,
- struct acpi_gpe_block_info * gpe_block)
+acpi_hw_disable_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+ struct acpi_gpe_block_info *gpe_block, void *context)
{
u32 i;
acpi_status status;
/* Disable all GPEs in this register */
- status = acpi_hw_low_level_write(8, 0x00,
- &gpe_block->register_info[i].
- enable_address);
+ status =
+ acpi_write(0x00,
+ &gpe_block->register_info[i].enable_address);
if (ACPI_FAILURE(status)) {
return (status);
}
******************************************************************************/
acpi_status
-acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info * gpe_xrupt_info,
- struct acpi_gpe_block_info * gpe_block)
+acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+ struct acpi_gpe_block_info *gpe_block, void *context)
{
u32 i;
acpi_status status;
/* Clear status on all GPEs in this register */
- status = acpi_hw_low_level_write(8, 0xFF,
- &gpe_block->register_info[i].
- status_address);
+ status =
+ acpi_write(0xFF,
+ &gpe_block->register_info[i].status_address);
if (ACPI_FAILURE(status)) {
return (status);
}
******************************************************************************/
acpi_status
-acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info * gpe_xrupt_info,
- struct acpi_gpe_block_info * gpe_block)
+acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+ struct acpi_gpe_block_info *gpe_block, void *context)
{
u32 i;
acpi_status status;
/* Enable all "runtime" GPEs in this register */
- status =
- acpi_hw_low_level_write(8,
- gpe_block->register_info[i].
- enable_for_run,
- &gpe_block->register_info[i].
- enable_address);
+ status = acpi_write(gpe_block->register_info[i].enable_for_run,
+ &gpe_block->register_info[i].
+ enable_address);
if (ACPI_FAILURE(status)) {
return (status);
}
static acpi_status
acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
- struct acpi_gpe_block_info *gpe_block)
+ struct acpi_gpe_block_info *gpe_block,
+ void *context)
{
u32 i;
acpi_status status;
/* Enable all "wake" GPEs in this register */
- status = acpi_hw_low_level_write(8,
- gpe_block->register_info[i].
- enable_for_wake,
- &gpe_block->register_info[i].
- enable_address);
+ status = acpi_write(gpe_block->register_info[i].enable_for_wake,
+ &gpe_block->register_info[i].
+ enable_address);
if (ACPI_FAILURE(status)) {
return (status);
}
ACPI_FUNCTION_TRACE(hw_disable_all_gpes);
- status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block);
- status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block);
+ status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block, NULL);
+ status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block, NULL);
return_ACPI_STATUS(status);
}
ACPI_FUNCTION_TRACE(hw_enable_all_runtime_gpes);
- status = acpi_ev_walk_gpe_list(acpi_hw_enable_runtime_gpe_block);
+ status = acpi_ev_walk_gpe_list(acpi_hw_enable_runtime_gpe_block, NULL);
return_ACPI_STATUS(status);
}
ACPI_FUNCTION_TRACE(hw_enable_all_wakeup_gpes);
- status = acpi_ev_walk_gpe_list(acpi_hw_enable_wakeup_gpe_block);
+ status = acpi_ev_walk_gpe_list(acpi_hw_enable_wakeup_gpe_block, NULL);
return_ACPI_STATUS(status);
}
--- /dev/null
+
+/*******************************************************************************
+ *
+ * Module Name: hwregs - Read/write access functions for the various ACPI
+ * control and status registers.
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acevents.h"
+
+#define _COMPONENT ACPI_HARDWARE
+ACPI_MODULE_NAME("hwregs")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_hw_clear_acpi_status
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Clears all fixed and general purpose status bits
+ * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
+ *
+ ******************************************************************************/
+acpi_status acpi_hw_clear_acpi_status(void)
+{
+ acpi_status status;
+ acpi_cpu_flags lock_flags = 0;
+
+ ACPI_FUNCTION_TRACE(hw_clear_acpi_status);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_IO, "About to write %04X to %04X\n",
+ ACPI_BITMASK_ALL_FIXED_STATUS,
+ (u16) acpi_gbl_FADT.xpm1a_event_block.address));
+
+ lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
+
+ status = acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS,
+ ACPI_BITMASK_ALL_FIXED_STATUS);
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+
+ /* Clear the fixed events */
+
+ if (acpi_gbl_FADT.xpm1b_event_block.address) {
+ status = acpi_write(ACPI_BITMASK_ALL_FIXED_STATUS,
+ &acpi_gbl_FADT.xpm1b_event_block);
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+ }
+
+ /* Clear the GPE Bits in all GPE registers in all GPE blocks */
+
+ status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block, NULL);
+
+ unlock_and_exit:
+ acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_hw_get_register_bit_mask
+ *
+ * PARAMETERS: register_id - Index of ACPI Register to access
+ *
+ * RETURN: The bitmask to be used when accessing the register
+ *
+ * DESCRIPTION: Map register_id into a register bitmask.
+ *
+ ******************************************************************************/
+
+struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ if (register_id > ACPI_BITREG_MAX) {
+ ACPI_ERROR((AE_INFO, "Invalid BitRegister ID: %X",
+ register_id));
+ return (NULL);
+ }
+
+ return (&acpi_gbl_bit_register_info[register_id]);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_register_read
+ *
+ * PARAMETERS: register_id - ACPI Register ID
+ * return_value - Where the register value is returned
+ *
+ * RETURN: Status and the value read.
+ *
+ * DESCRIPTION: Read from the specified ACPI register
+ *
+ ******************************************************************************/
+acpi_status
+acpi_hw_register_read(u32 register_id, u32 * return_value)
+{
+ u32 value1 = 0;
+ u32 value2 = 0;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(hw_register_read);
+
+ switch (register_id) {
+ case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */
+
+ status = acpi_read(&value1, &acpi_gbl_FADT.xpm1a_event_block);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* PM1B is optional */
+
+ status = acpi_read(&value2, &acpi_gbl_FADT.xpm1b_event_block);
+ value1 |= value2;
+ break;
+
+ case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access */
+
+ status = acpi_read(&value1, &acpi_gbl_xpm1a_enable);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* PM1B is optional */
+
+ status = acpi_read(&value2, &acpi_gbl_xpm1b_enable);
+ value1 |= value2;
+ break;
+
+ case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */
+
+ status = acpi_read(&value1, &acpi_gbl_FADT.xpm1a_control_block);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ status = acpi_read(&value2, &acpi_gbl_FADT.xpm1b_control_block);
+ value1 |= value2;
+ break;
+
+ case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */
+
+ status = acpi_read(&value1, &acpi_gbl_FADT.xpm2_control_block);
+ break;
+
+ case ACPI_REGISTER_PM_TIMER: /* 32-bit access */
+
+ status = acpi_read(&value1, &acpi_gbl_FADT.xpm_timer_block);
+ break;
+
+ case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */
+
+ status =
+ acpi_os_read_port(acpi_gbl_FADT.smi_command, &value1, 8);
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO, "Unknown Register ID: %X", register_id));
+ status = AE_BAD_PARAMETER;
+ break;
+ }
+
+ exit:
+
+ if (ACPI_SUCCESS(status)) {
+ *return_value = value1;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_register_write
+ *
+ * PARAMETERS: register_id - ACPI Register ID
+ * Value - The value to write
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Write to the specified ACPI register
+ *
+ * NOTE: In accordance with the ACPI specification, this function automatically
+ * preserves the value of the following bits, meaning that these bits cannot be
+ * changed via this interface:
+ *
+ * PM1_CONTROL[0] = SCI_EN
+ * PM1_CONTROL[9]
+ * PM1_STATUS[11]
+ *
+ * ACPI References:
+ * 1) Hardware Ignored Bits: When software writes to a register with ignored
+ * bit fields, it preserves the ignored bit fields
+ * 2) SCI_EN: OSPM always preserves this bit position
+ *
+ ******************************************************************************/
+
+acpi_status acpi_hw_register_write(u32 register_id, u32 value)
+{
+ acpi_status status;
+ u32 read_value;
+
+ ACPI_FUNCTION_TRACE(hw_register_write);
+
+ switch (register_id) {
+ case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */
+
+ /* Perform a read first to preserve certain bits (per ACPI spec) */
+
+ status = acpi_hw_register_read(ACPI_REGISTER_PM1_STATUS,
+ &read_value);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* Insert the bits to be preserved */
+
+ ACPI_INSERT_BITS(value, ACPI_PM1_STATUS_PRESERVED_BITS,
+ read_value);
+
+ /* Now we can write the data */
+
+ status = acpi_write(value, &acpi_gbl_FADT.xpm1a_event_block);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* PM1B is optional */
+
+ status = acpi_write(value, &acpi_gbl_FADT.xpm1b_event_block);
+ break;
+
+ case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access */
+
+ status = acpi_write(value, &acpi_gbl_xpm1a_enable);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* PM1B is optional */
+
+ status = acpi_write(value, &acpi_gbl_xpm1b_enable);
+ break;
+
+ case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */
+
+ /*
+ * Perform a read first to preserve certain bits (per ACPI spec)
+ */
+ status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL,
+ &read_value);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* Insert the bits to be preserved */
+
+ ACPI_INSERT_BITS(value, ACPI_PM1_CONTROL_PRESERVED_BITS,
+ read_value);
+
+ /* Now we can write the data */
+
+ status = acpi_write(value, &acpi_gbl_FADT.xpm1a_control_block);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ status = acpi_write(value, &acpi_gbl_FADT.xpm1b_control_block);
+ break;
+
+ case ACPI_REGISTER_PM1A_CONTROL: /* 16-bit access */
+
+ status = acpi_write(value, &acpi_gbl_FADT.xpm1a_control_block);
+ break;
+
+ case ACPI_REGISTER_PM1B_CONTROL: /* 16-bit access */
+
+ status = acpi_write(value, &acpi_gbl_FADT.xpm1b_control_block);
+ break;
+
+ case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */
+
+ status = acpi_write(value, &acpi_gbl_FADT.xpm2_control_block);
+ break;
+
+ case ACPI_REGISTER_PM_TIMER: /* 32-bit access */
+
+ status = acpi_write(value, &acpi_gbl_FADT.xpm_timer_block);
+ break;
+
+ case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */
+
+ /* SMI_CMD is currently always in IO space */
+
+ status =
+ acpi_os_write_port(acpi_gbl_FADT.smi_command, value, 8);
+ break;
+
+ default:
+ status = AE_BAD_PARAMETER;
+ break;
+ }
+
+ exit:
+ return_ACPI_STATUS(status);
+}
*/
#include <acpi/acpi.h>
-#include <acpi/actables.h>
+#include "accommon.h"
+#include "actables.h"
#define _COMPONENT ACPI_HARDWARE
ACPI_MODULE_NAME("hwsleep")
*
* FUNCTION: acpi_set_firmware_waking_vector
*
- * PARAMETERS: physical_address - Physical address of ACPI real mode
+ * PARAMETERS: physical_address - 32-bit physical address of ACPI real mode
* entry point.
*
* RETURN: Status
*
- * DESCRIPTION: Access function for the firmware_waking_vector field in FACS
+ * DESCRIPTION: Sets the 32-bit firmware_waking_vector field of the FACS
*
******************************************************************************/
acpi_status
-acpi_set_firmware_waking_vector(acpi_physical_address physical_address)
+acpi_set_firmware_waking_vector(u32 physical_address)
{
- struct acpi_table_facs *facs;
- acpi_status status;
-
ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector);
- /* Get the FACS */
-
- status = acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS,
- ACPI_CAST_INDIRECT_PTR(struct
- acpi_table_header,
- &facs));
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
/*
* According to the ACPI specification 2.0c and later, the 64-bit
* Protected Mode. Some systems (for example HP dv5-1004nr) are known
* to fail to resume if the 64-bit vector is used.
*/
- if (facs->version >= 1)
- facs->xfirmware_waking_vector = 0;
- facs->firmware_waking_vector = (u32)physical_address;
+ /* Set the 32-bit vector */
+
+ acpi_gbl_FACS->firmware_waking_vector = physical_address;
+
+ /* Clear the 64-bit vector if it exists */
+
+ if ((acpi_gbl_FACS->length > 32) && (acpi_gbl_FACS->version >= 1)) {
+ acpi_gbl_FACS->xfirmware_waking_vector = 0;
+ }
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
*
- * FUNCTION: acpi_get_firmware_waking_vector
+ * FUNCTION: acpi_set_firmware_waking_vector64
*
- * PARAMETERS: *physical_address - Where the contents of
- * the firmware_waking_vector field of
- * the FACS will be returned.
+ * PARAMETERS: physical_address - 64-bit physical address of ACPI protected
+ * mode entry point.
*
- * RETURN: Status, vector
+ * RETURN: Status
*
- * DESCRIPTION: Access function for the firmware_waking_vector field in FACS
+ * DESCRIPTION: Sets the 64-bit X_firmware_waking_vector field of the FACS, if
+ * it exists in the table.
*
******************************************************************************/
-#ifdef ACPI_FUTURE_USAGE
acpi_status
-acpi_get_firmware_waking_vector(acpi_physical_address * physical_address)
+acpi_set_firmware_waking_vector64(u64 physical_address)
{
- struct acpi_table_facs *facs;
- acpi_status status;
+ ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector64);
- ACPI_FUNCTION_TRACE(acpi_get_firmware_waking_vector);
-
- if (!physical_address) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
- /* Get the FACS */
+ /* Determine if the 64-bit vector actually exists */
- status = acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS,
- ACPI_CAST_INDIRECT_PTR(struct
- acpi_table_header,
- &facs));
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
+ if ((acpi_gbl_FACS->length <= 32) || (acpi_gbl_FACS->version < 1)) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
}
- /* Get the vector */
- *physical_address = (acpi_physical_address)facs->firmware_waking_vector;
+ /* Clear 32-bit vector, set the 64-bit X_ vector */
+
+ acpi_gbl_FACS->firmware_waking_vector = 0;
+ acpi_gbl_FACS->xfirmware_waking_vector = physical_address;
return_ACPI_STATUS(AE_OK);
}
-ACPI_EXPORT_SYMBOL(acpi_get_firmware_waking_vector)
-#endif
+ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector64)
+
/*******************************************************************************
*
* FUNCTION: acpi_enter_sleep_state_prep
*/
#include <acpi/acpi.h>
+#include "accommon.h"
#define _COMPONENT ACPI_HARDWARE
ACPI_MODULE_NAME("hwtimer")
-/*******************************************************************************
+/******************************************************************************
*
- * Module Name: hwregs - Read/write access functions for the various ACPI
- * control and status registers.
+ * Module Name: hwxface - Public ACPICA hardware interfaces
*
- ******************************************************************************/
+ *****************************************************************************/
/*
* Copyright (C) 2000 - 2008, Intel Corp.
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acevents.h>
+#include "accommon.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_HARDWARE
-ACPI_MODULE_NAME("hwregs")
+ACPI_MODULE_NAME("hwxface")
-/*******************************************************************************
+/******************************************************************************
*
- * FUNCTION: acpi_hw_clear_acpi_status
+ * FUNCTION: acpi_reset
*
* PARAMETERS: None
*
- * RETURN: None
+ * RETURN: Status
*
- * DESCRIPTION: Clears all fixed and general purpose status bits
- * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
+ * DESCRIPTION: Set reset register in memory or IO space. Note: Does not
+ * support reset register in PCI config space, this must be
+ * handled separately.
*
******************************************************************************/
-acpi_status acpi_hw_clear_acpi_status(void)
+acpi_status acpi_reset(void)
{
+ struct acpi_generic_address *reset_reg;
acpi_status status;
- acpi_cpu_flags lock_flags = 0;
-
- ACPI_FUNCTION_TRACE(hw_clear_acpi_status);
-
- ACPI_DEBUG_PRINT((ACPI_DB_IO, "About to write %04X to %04X\n",
- ACPI_BITMASK_ALL_FIXED_STATUS,
- (u16) acpi_gbl_FADT.xpm1a_event_block.address));
- lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
+ ACPI_FUNCTION_TRACE(acpi_reset);
- status = acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS,
- ACPI_BITMASK_ALL_FIXED_STATUS);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
+ reset_reg = &acpi_gbl_FADT.reset_register;
- /* Clear the fixed events */
+ /* Check if the reset register is supported */
- if (acpi_gbl_FADT.xpm1b_event_block.address) {
- status =
- acpi_hw_low_level_write(16, ACPI_BITMASK_ALL_FIXED_STATUS,
- &acpi_gbl_FADT.xpm1b_event_block);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
+ if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER) ||
+ !reset_reg->address) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
}
- /* Clear the GPE Bits in all GPE registers in all GPE blocks */
+ /* Write the reset value to the reset register */
- status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block);
-
- unlock_and_exit:
- acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags);
+ status = acpi_write(acpi_gbl_FADT.reset_value, reset_reg);
return_ACPI_STATUS(status);
}
-/*******************************************************************************
+ACPI_EXPORT_SYMBOL(acpi_reset)
+
+/******************************************************************************
*
- * FUNCTION: acpi_get_sleep_type_data
+ * FUNCTION: acpi_read
*
- * PARAMETERS: sleep_state - Numeric sleep state
- * *sleep_type_a - Where SLP_TYPa is returned
- * *sleep_type_b - Where SLP_TYPb is returned
+ * PARAMETERS: Value - Where the value is returned
+ * Reg - GAS register structure
*
- * RETURN: Status - ACPI status
+ * RETURN: Status
*
- * DESCRIPTION: Obtain the SLP_TYPa and SLP_TYPb values for the requested sleep
- * state.
+ * DESCRIPTION: Read from either memory or IO space.
*
******************************************************************************/
-
-acpi_status
-acpi_get_sleep_type_data(u8 sleep_state, u8 * sleep_type_a, u8 * sleep_type_b)
+acpi_status acpi_read(u32 *value, struct acpi_generic_address *reg)
{
- acpi_status status = AE_OK;
- struct acpi_evaluate_info *info;
-
- ACPI_FUNCTION_TRACE(acpi_get_sleep_type_data);
-
- /* Validate parameters */
-
- if ((sleep_state > ACPI_S_STATES_MAX) || !sleep_type_a || !sleep_type_b) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
+ u32 width;
+ u64 address;
+ acpi_status status;
- /* Allocate the evaluation information block */
+ ACPI_FUNCTION_NAME(acpi_read);
- info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
- if (!info) {
- return_ACPI_STATUS(AE_NO_MEMORY);
+ /*
+ * Must have a valid pointer to a GAS structure, and
+ * a non-zero address within. However, don't return an error
+ * because the PM1A/B code must not fail if B isn't present.
+ */
+ if (!reg) {
+ return (AE_OK);
}
- info->pathname =
- ACPI_CAST_PTR(char, acpi_gbl_sleep_state_names[sleep_state]);
-
- /* Evaluate the namespace object containing the values for this state */
-
- status = acpi_ns_evaluate(info);
- if (ACPI_FAILURE(status)) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "%s while evaluating SleepState [%s]\n",
- acpi_format_exception(status),
- info->pathname));
+ /* Get a local copy of the address. Handles possible alignment issues */
- goto cleanup;
+ ACPI_MOVE_64_TO_64(&address, ®->address);
+ if (!address) {
+ return (AE_OK);
}
- /* Must have a return object */
+ /* Supported widths are 8/16/32 */
- if (!info->return_object) {
- ACPI_ERROR((AE_INFO, "No Sleep State object returned from [%s]",
- info->pathname));
- status = AE_NOT_EXIST;
+ width = reg->bit_width;
+ if ((width != 8) && (width != 16) && (width != 32)) {
+ return (AE_SUPPORT);
}
- /* It must be of type Package */
+ /* Initialize entire 32-bit return value to zero */
- else if (ACPI_GET_OBJECT_TYPE(info->return_object) != ACPI_TYPE_PACKAGE) {
- ACPI_ERROR((AE_INFO,
- "Sleep State return object is not a Package"));
- status = AE_AML_OPERAND_TYPE;
- }
+ *value = 0;
/*
- * The package must have at least two elements. NOTE (March 2005): This
- * goes against the current ACPI spec which defines this object as a
- * package with one encoded DWORD element. However, existing practice
- * by BIOS vendors seems to be to have 2 or more elements, at least
- * one per sleep type (A/B).
+ * Two address spaces supported: Memory or IO.
+ * PCI_Config is not supported here because the GAS struct is insufficient
*/
- else if (info->return_object->package.count < 2) {
- ACPI_ERROR((AE_INFO,
- "Sleep State return package does not have at least two elements"));
- status = AE_AML_NO_OPERAND;
- }
+ switch (reg->space_id) {
+ case ACPI_ADR_SPACE_SYSTEM_MEMORY:
- /* The first two elements must both be of type Integer */
+ status = acpi_os_read_memory((acpi_physical_address) address,
+ value, width);
+ break;
- else if ((ACPI_GET_OBJECT_TYPE(info->return_object->package.elements[0])
- != ACPI_TYPE_INTEGER) ||
- (ACPI_GET_OBJECT_TYPE(info->return_object->package.elements[1])
- != ACPI_TYPE_INTEGER)) {
- ACPI_ERROR((AE_INFO,
- "Sleep State return package elements are not both Integers (%s, %s)",
- acpi_ut_get_object_type_name(info->return_object->
- package.elements[0]),
- acpi_ut_get_object_type_name(info->return_object->
- package.elements[1])));
- status = AE_AML_OPERAND_TYPE;
- } else {
- /* Valid _Sx_ package size, type, and value */
+ case ACPI_ADR_SPACE_SYSTEM_IO:
- *sleep_type_a = (u8)
- (info->return_object->package.elements[0])->integer.value;
- *sleep_type_b = (u8)
- (info->return_object->package.elements[1])->integer.value;
- }
+ status =
+ acpi_os_read_port((acpi_io_address) address, value, width);
+ break;
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "While evaluating SleepState [%s], bad Sleep object %p type %s",
- info->pathname, info->return_object,
- acpi_ut_get_object_type_name(info->
- return_object)));
+ default:
+ ACPI_ERROR((AE_INFO,
+ "Unsupported address space: %X", reg->space_id));
+ return (AE_BAD_PARAMETER);
}
- acpi_ut_remove_reference(info->return_object);
+ ACPI_DEBUG_PRINT((ACPI_DB_IO,
+ "Read: %8.8X width %2d from %8.8X%8.8X (%s)\n",
+ *value, width, ACPI_FORMAT_UINT64(address),
+ acpi_ut_get_region_name(reg->space_id)));
- cleanup:
- ACPI_FREE(info);
- return_ACPI_STATUS(status);
+ return (status);
}
-ACPI_EXPORT_SYMBOL(acpi_get_sleep_type_data)
+ACPI_EXPORT_SYMBOL(acpi_read)
-/*******************************************************************************
+/******************************************************************************
*
- * FUNCTION: acpi_hw_get_register_bit_mask
+ * FUNCTION: acpi_write
*
- * PARAMETERS: register_id - Index of ACPI Register to access
+ * PARAMETERS: Value - To be written
+ * Reg - GAS register structure
*
- * RETURN: The bitmask to be used when accessing the register
+ * RETURN: Status
*
- * DESCRIPTION: Map register_id into a register bitmask.
+ * DESCRIPTION: Write to either memory or IO space.
*
******************************************************************************/
-struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id)
+acpi_status acpi_write(u32 value, struct acpi_generic_address *reg)
{
- ACPI_FUNCTION_ENTRY();
+ u32 width;
+ u64 address;
+ acpi_status status;
- if (register_id > ACPI_BITREG_MAX) {
- ACPI_ERROR((AE_INFO, "Invalid BitRegister ID: %X",
- register_id));
- return (NULL);
+ ACPI_FUNCTION_NAME(acpi_write);
+
+ /*
+ * Must have a valid pointer to a GAS structure, and
+ * a non-zero address within. However, don't return an error
+ * because the PM1A/B code must not fail if B isn't present.
+ */
+ if (!reg) {
+ return (AE_OK);
+ }
+
+ /* Get a local copy of the address. Handles possible alignment issues */
+
+ ACPI_MOVE_64_TO_64(&address, ®->address);
+ if (!address) {
+ return (AE_OK);
+ }
+
+ /* Supported widths are 8/16/32 */
+
+ width = reg->bit_width;
+ if ((width != 8) && (width != 16) && (width != 32)) {
+ return (AE_SUPPORT);
+ }
+
+ /*
+ * Two address spaces supported: Memory or IO.
+ * PCI_Config is not supported here because the GAS struct is insufficient
+ */
+ switch (reg->space_id) {
+ case ACPI_ADR_SPACE_SYSTEM_MEMORY:
+
+ status = acpi_os_write_memory((acpi_physical_address) address,
+ value, width);
+ break;
+
+ case ACPI_ADR_SPACE_SYSTEM_IO:
+
+ status = acpi_os_write_port((acpi_io_address) address, value,
+ width);
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO,
+ "Unsupported address space: %X", reg->space_id));
+ return (AE_BAD_PARAMETER);
}
- return (&acpi_gbl_bit_register_info[register_id]);
+ ACPI_DEBUG_PRINT((ACPI_DB_IO,
+ "Wrote: %8.8X width %2d to %8.8X%8.8X (%s)\n",
+ value, width, ACPI_FORMAT_UINT64(address),
+ acpi_ut_get_region_name(reg->space_id)));
+
+ return (status);
}
+ACPI_EXPORT_SYMBOL(acpi_write)
+
/*******************************************************************************
*
- * FUNCTION: acpi_get_register
+ * FUNCTION: acpi_get_register_unlocked
*
* PARAMETERS: register_id - ID of ACPI bit_register to access
* return_value - Value that was read from the register
* RETURN: Status and the value read from specified Register. Value
* returned is normalized to bit0 (is shifted all the way right)
*
- * DESCRIPTION: ACPI bit_register read function.
+ * DESCRIPTION: ACPI bit_register read function. Does not acquire the HW lock.
*
******************************************************************************/
-
-acpi_status acpi_get_register_unlocked(u32 register_id, u32 * return_value)
+acpi_status acpi_get_register_unlocked(u32 register_id, u32 *return_value)
{
u32 register_value = 0;
struct acpi_bit_register_info *bit_reg_info;
acpi_status status;
- ACPI_FUNCTION_TRACE(acpi_get_register);
+ ACPI_FUNCTION_TRACE(acpi_get_register_unlocked);
/* Get the info structure corresponding to the requested ACPI Register */
return_ACPI_STATUS(status);
}
-acpi_status acpi_get_register(u32 register_id, u32 * return_value)
+ACPI_EXPORT_SYMBOL(acpi_get_register_unlocked)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_register
+ *
+ * PARAMETERS: register_id - ID of ACPI bit_register to access
+ * return_value - Value that was read from the register
+ *
+ * RETURN: Status and the value read from specified Register. Value
+ * returned is normalized to bit0 (is shifted all the way right)
+ *
+ * DESCRIPTION: ACPI bit_register read function.
+ *
+ ******************************************************************************/
+acpi_status acpi_get_register(u32 register_id, u32 *return_value)
{
acpi_status status;
acpi_cpu_flags flags;
+
flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
status = acpi_get_register_unlocked(register_id, return_value);
acpi_os_release_lock(acpi_gbl_hardware_lock, flags);
- return status;
+
+ return (status);
}
ACPI_EXPORT_SYMBOL(acpi_get_register)
bit_reg_info->
access_bit_mask);
if (value) {
- status = acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS,
- (u16) value);
+ status =
+ acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS,
+ (u16) value);
register_value = 0;
}
break;
ACPI_EXPORT_SYMBOL(acpi_set_register)
-/******************************************************************************
+/*******************************************************************************
*
- * FUNCTION: acpi_hw_register_read
+ * FUNCTION: acpi_get_sleep_type_data
*
- * PARAMETERS: register_id - ACPI Register ID
- * return_value - Where the register value is returned
+ * PARAMETERS: sleep_state - Numeric sleep state
+ * *sleep_type_a - Where SLP_TYPa is returned
+ * *sleep_type_b - Where SLP_TYPb is returned
*
- * RETURN: Status and the value read.
+ * RETURN: Status - ACPI status
*
- * DESCRIPTION: Read from the specified ACPI register
+ * DESCRIPTION: Obtain the SLP_TYPa and SLP_TYPb values for the requested sleep
+ * state.
*
******************************************************************************/
acpi_status
-acpi_hw_register_read(u32 register_id, u32 * return_value)
+acpi_get_sleep_type_data(u8 sleep_state, u8 *sleep_type_a, u8 *sleep_type_b)
{
- u32 value1 = 0;
- u32 value2 = 0;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(hw_register_read);
+ acpi_status status = AE_OK;
+ struct acpi_evaluate_info *info;
- switch (register_id) {
- case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */
+ ACPI_FUNCTION_TRACE(acpi_get_sleep_type_data);
- status =
- acpi_hw_low_level_read(16, &value1,
- &acpi_gbl_FADT.xpm1a_event_block);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
+ /* Validate parameters */
- /* PM1B is optional */
+ if ((sleep_state > ACPI_S_STATES_MAX) || !sleep_type_a || !sleep_type_b) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
- status =
- acpi_hw_low_level_read(16, &value2,
- &acpi_gbl_FADT.xpm1b_event_block);
- value1 |= value2;
- break;
+ /* Allocate the evaluation information block */
- case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access */
+ info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+ if (!info) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
- status =
- acpi_hw_low_level_read(16, &value1, &acpi_gbl_xpm1a_enable);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
+ info->pathname =
+ ACPI_CAST_PTR(char, acpi_gbl_sleep_state_names[sleep_state]);
- /* PM1B is optional */
+ /* Evaluate the namespace object containing the values for this state */
- status =
- acpi_hw_low_level_read(16, &value2, &acpi_gbl_xpm1b_enable);
- value1 |= value2;
- break;
-
- case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */
-
- status =
- acpi_hw_low_level_read(16, &value1,
- &acpi_gbl_FADT.xpm1a_control_block);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- status =
- acpi_hw_low_level_read(16, &value2,
- &acpi_gbl_FADT.xpm1b_control_block);
- value1 |= value2;
- break;
-
- case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */
-
- status =
- acpi_hw_low_level_read(8, &value1,
- &acpi_gbl_FADT.xpm2_control_block);
- break;
-
- case ACPI_REGISTER_PM_TIMER: /* 32-bit access */
-
- status =
- acpi_hw_low_level_read(32, &value1,
- &acpi_gbl_FADT.xpm_timer_block);
- break;
-
- case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */
-
- status =
- acpi_os_read_port(acpi_gbl_FADT.smi_command, &value1, 8);
- break;
-
- default:
- ACPI_ERROR((AE_INFO, "Unknown Register ID: %X", register_id));
- status = AE_BAD_PARAMETER;
- break;
- }
-
- exit:
-
- if (ACPI_SUCCESS(status)) {
- *return_value = value1;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_register_write
- *
- * PARAMETERS: register_id - ACPI Register ID
- * Value - The value to write
- *
- * RETURN: Status
- *
- * DESCRIPTION: Write to the specified ACPI register
- *
- * NOTE: In accordance with the ACPI specification, this function automatically
- * preserves the value of the following bits, meaning that these bits cannot be
- * changed via this interface:
- *
- * PM1_CONTROL[0] = SCI_EN
- * PM1_CONTROL[9]
- * PM1_STATUS[11]
- *
- * ACPI References:
- * 1) Hardware Ignored Bits: When software writes to a register with ignored
- * bit fields, it preserves the ignored bit fields
- * 2) SCI_EN: OSPM always preserves this bit position
- *
- ******************************************************************************/
-
-acpi_status acpi_hw_register_write(u32 register_id, u32 value)
-{
- acpi_status status;
- u32 read_value;
-
- ACPI_FUNCTION_TRACE(hw_register_write);
-
- switch (register_id) {
- case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */
-
- /* Perform a read first to preserve certain bits (per ACPI spec) */
-
- status = acpi_hw_register_read(ACPI_REGISTER_PM1_STATUS,
- &read_value);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* Insert the bits to be preserved */
-
- ACPI_INSERT_BITS(value, ACPI_PM1_STATUS_PRESERVED_BITS,
- read_value);
-
- /* Now we can write the data */
-
- status =
- acpi_hw_low_level_write(16, value,
- &acpi_gbl_FADT.xpm1a_event_block);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* PM1B is optional */
-
- status =
- acpi_hw_low_level_write(16, value,
- &acpi_gbl_FADT.xpm1b_event_block);
- break;
-
- case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access */
-
- status =
- acpi_hw_low_level_write(16, value, &acpi_gbl_xpm1a_enable);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* PM1B is optional */
-
- status =
- acpi_hw_low_level_write(16, value, &acpi_gbl_xpm1b_enable);
- break;
-
- case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */
-
- /*
- * Perform a read first to preserve certain bits (per ACPI spec)
- */
- status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL,
- &read_value);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* Insert the bits to be preserved */
-
- ACPI_INSERT_BITS(value, ACPI_PM1_CONTROL_PRESERVED_BITS,
- read_value);
-
- /* Now we can write the data */
-
- status =
- acpi_hw_low_level_write(16, value,
- &acpi_gbl_FADT.xpm1a_control_block);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- status =
- acpi_hw_low_level_write(16, value,
- &acpi_gbl_FADT.xpm1b_control_block);
- break;
-
- case ACPI_REGISTER_PM1A_CONTROL: /* 16-bit access */
-
- status =
- acpi_hw_low_level_write(16, value,
- &acpi_gbl_FADT.xpm1a_control_block);
- break;
-
- case ACPI_REGISTER_PM1B_CONTROL: /* 16-bit access */
-
- status =
- acpi_hw_low_level_write(16, value,
- &acpi_gbl_FADT.xpm1b_control_block);
- break;
-
- case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */
-
- status =
- acpi_hw_low_level_write(8, value,
- &acpi_gbl_FADT.xpm2_control_block);
- break;
-
- case ACPI_REGISTER_PM_TIMER: /* 32-bit access */
-
- status =
- acpi_hw_low_level_write(32, value,
- &acpi_gbl_FADT.xpm_timer_block);
- break;
-
- case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */
-
- /* SMI_CMD is currently always in IO space */
-
- status =
- acpi_os_write_port(acpi_gbl_FADT.smi_command, value, 8);
- break;
+ status = acpi_ns_evaluate(info);
+ if (ACPI_FAILURE(status)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "%s while evaluating SleepState [%s]\n",
+ acpi_format_exception(status),
+ info->pathname));
- default:
- status = AE_BAD_PARAMETER;
- break;
+ goto cleanup;
}
- exit:
- return_ACPI_STATUS(status);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_low_level_read
- *
- * PARAMETERS: Width - 8, 16, or 32
- * Value - Where the value is returned
- * Reg - GAS register structure
- *
- * RETURN: Status
- *
- * DESCRIPTION: Read from either memory or IO space.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_hw_low_level_read(u32 width, u32 * value, struct acpi_generic_address *reg)
-{
- u64 address;
- acpi_status status;
-
- ACPI_FUNCTION_NAME(hw_low_level_read);
+ /* Must have a return object */
- /*
- * Must have a valid pointer to a GAS structure, and
- * a non-zero address within. However, don't return an error
- * because the PM1A/B code must not fail if B isn't present.
- */
- if (!reg) {
- return (AE_OK);
+ if (!info->return_object) {
+ ACPI_ERROR((AE_INFO, "No Sleep State object returned from [%s]",
+ info->pathname));
+ status = AE_NOT_EXIST;
}
- /* Get a local copy of the address. Handles possible alignment issues */
+ /* It must be of type Package */
- ACPI_MOVE_64_TO_64(&address, ®->address);
- if (!address) {
- return (AE_OK);
+ else if (ACPI_GET_OBJECT_TYPE(info->return_object) != ACPI_TYPE_PACKAGE) {
+ ACPI_ERROR((AE_INFO,
+ "Sleep State return object is not a Package"));
+ status = AE_AML_OPERAND_TYPE;
}
- *value = 0;
/*
- * Two address spaces supported: Memory or IO.
- * PCI_Config is not supported here because the GAS struct is insufficient
+ * The package must have at least two elements. NOTE (March 2005): This
+ * goes against the current ACPI spec which defines this object as a
+ * package with one encoded DWORD element. However, existing practice
+ * by BIOS vendors seems to be to have 2 or more elements, at least
+ * one per sleep type (A/B).
*/
- switch (reg->space_id) {
- case ACPI_ADR_SPACE_SYSTEM_MEMORY:
-
- status = acpi_os_read_memory((acpi_physical_address) address,
- value, width);
- break;
-
- case ACPI_ADR_SPACE_SYSTEM_IO:
-
- status =
- acpi_os_read_port((acpi_io_address) address, value, width);
- break;
-
- default:
+ else if (info->return_object->package.count < 2) {
ACPI_ERROR((AE_INFO,
- "Unsupported address space: %X", reg->space_id));
- return (AE_BAD_PARAMETER);
+ "Sleep State return package does not have at least two elements"));
+ status = AE_AML_NO_OPERAND;
}
- ACPI_DEBUG_PRINT((ACPI_DB_IO,
- "Read: %8.8X width %2d from %8.8X%8.8X (%s)\n",
- *value, width, ACPI_FORMAT_UINT64(address),
- acpi_ut_get_region_name(reg->space_id)));
-
- return (status);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_low_level_write
- *
- * PARAMETERS: Width - 8, 16, or 32
- * Value - To be written
- * Reg - GAS register structure
- *
- * RETURN: Status
- *
- * DESCRIPTION: Write to either memory or IO space.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_hw_low_level_write(u32 width, u32 value, struct acpi_generic_address * reg)
-{
- u64 address;
- acpi_status status;
-
- ACPI_FUNCTION_NAME(hw_low_level_write);
-
- /*
- * Must have a valid pointer to a GAS structure, and
- * a non-zero address within. However, don't return an error
- * because the PM1A/B code must not fail if B isn't present.
- */
- if (!reg) {
- return (AE_OK);
- }
+ /* The first two elements must both be of type Integer */
- /* Get a local copy of the address. Handles possible alignment issues */
+ else if ((ACPI_GET_OBJECT_TYPE(info->return_object->package.elements[0])
+ != ACPI_TYPE_INTEGER) ||
+ (ACPI_GET_OBJECT_TYPE(info->return_object->package.elements[1])
+ != ACPI_TYPE_INTEGER)) {
+ ACPI_ERROR((AE_INFO,
+ "Sleep State return package elements are not both Integers (%s, %s)",
+ acpi_ut_get_object_type_name(info->return_object->
+ package.elements[0]),
+ acpi_ut_get_object_type_name(info->return_object->
+ package.elements[1])));
+ status = AE_AML_OPERAND_TYPE;
+ } else {
+ /* Valid _Sx_ package size, type, and value */
- ACPI_MOVE_64_TO_64(&address, ®->address);
- if (!address) {
- return (AE_OK);
+ *sleep_type_a = (u8)
+ (info->return_object->package.elements[0])->integer.value;
+ *sleep_type_b = (u8)
+ (info->return_object->package.elements[1])->integer.value;
}
- /*
- * Two address spaces supported: Memory or IO.
- * PCI_Config is not supported here because the GAS struct is insufficient
- */
- switch (reg->space_id) {
- case ACPI_ADR_SPACE_SYSTEM_MEMORY:
-
- status = acpi_os_write_memory((acpi_physical_address) address,
- value, width);
- break;
-
- case ACPI_ADR_SPACE_SYSTEM_IO:
-
- status = acpi_os_write_port((acpi_io_address) address, value,
- width);
- break;
-
- default:
- ACPI_ERROR((AE_INFO,
- "Unsupported address space: %X", reg->space_id));
- return (AE_BAD_PARAMETER);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "While evaluating SleepState [%s], bad Sleep object %p type %s",
+ info->pathname, info->return_object,
+ acpi_ut_get_object_type_name(info->
+ return_object)));
}
- ACPI_DEBUG_PRINT((ACPI_DB_IO,
- "Wrote: %8.8X width %2d to %8.8X%8.8X (%s)\n",
- value, width, ACPI_FORMAT_UINT64(address),
- acpi_ut_get_region_name(reg->space_id)));
+ acpi_ut_remove_reference(info->return_object);
- return (status);
+ cleanup:
+ ACPI_FREE(info);
+ return_ACPI_STATUS(status);
}
+
+ACPI_EXPORT_SYMBOL(acpi_get_sleep_type_data)
*/
#include <acpi/acpi.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acdispat.h>
+#include "accommon.h"
+#include "amlcode.h"
+#include "acnamesp.h"
+#include "acdispat.h"
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsaccess")
obj_desc->method.method_flags =
AML_METHOD_INTERNAL_ONLY;
-
-#ifndef ACPI_DUMP_APP
obj_desc->method.implementation =
acpi_ut_osi_implementation;
-#endif
#endif
break;
}
/*
- * Search namespace for each segment of the name. Loop through and
+ * Search namespace for each segment of the name. Loop through and
* verify (or add to the namespace) each name segment.
*
* The object type is significant only at the last name
- * segment. (We don't care about the types along the path, only
+ * segment. (We don't care about the types along the path, only
* the type of the final target object.)
*/
this_search_type = ACPI_TYPE_ANY;
* segments).
*/
if (this_node->type == ACPI_TYPE_LOCAL_ALIAS) {
+ if (!this_node->object) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
if (acpi_ns_opens_scope
(((struct acpi_namespace_node *)this_node->
object)->type)) {
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsalloc")
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsdump")
*/
#include <acpi/acpi.h>
+#include "accommon.h"
/* TBD: This entire module is apparently obsolete and should be removed */
ACPI_MODULE_NAME("nsdumpdv")
#ifdef ACPI_OBSOLETE_FUNCTIONS
#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
-#include <acpi/acnamesp.h>
+#include "acnamesp.h"
/*******************************************************************************
*
* FUNCTION: acpi_ns_dump_one_device
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "acinterp.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nseval")
/* Initialize the return value to an invalid object */
info->return_object = NULL;
+ info->param_count = 0;
/*
* Get the actual namespace node for the target object. Handles these cases:
return_ACPI_STATUS(AE_NULL_OBJECT);
}
- /*
- * Calculate the number of arguments being passed to the method
- */
+ /* Count the number of arguments being passed to the method */
- info->param_count = 0;
if (info->parameters) {
- while (info->parameters[info->param_count])
+ while (info->parameters[info->param_count]) {
+ if (info->param_count > ACPI_METHOD_MAX_ARG) {
+ return_ACPI_STATUS(AE_LIMIT);
+ }
info->param_count++;
+ }
}
- /*
- * Warning if too few or too many arguments have been passed by the
- * caller. We don't want to abort here with an error because an
- * incorrect number of arguments may not cause the method to fail.
- * However, the method will fail if there are too few arguments passed
- * and the method attempts to use one of the missing ones.
- */
-
- if (info->param_count < info->obj_desc->method.param_count) {
- ACPI_WARNING((AE_INFO,
- "Insufficient arguments - "
- "method [%4.4s] needs %d, found %d",
- acpi_ut_get_node_name(info->resolved_node),
- info->obj_desc->method.param_count,
- info->param_count));
- } else if (info->param_count >
- info->obj_desc->method.param_count) {
- ACPI_WARNING((AE_INFO,
- "Excess arguments - "
- "method [%4.4s] needs %d, found %d",
- acpi_ut_get_node_name(info->
- resolved_node),
- info->obj_desc->method.param_count,
- info->param_count));
- }
ACPI_DUMP_PATHNAME(info->resolved_node, "Execute Method:",
ACPI_LV_INFO, _COMPONENT);
}
}
- /* Validation of return values for ACPI-predefined methods and objects */
-
- if ((status == AE_OK) || (status == AE_CTRL_RETURN_VALUE)) {
- /*
- * If this is the first evaluation, check the return value. This
- * ensures that any warnings will only be emitted during the very
- * first evaluation of the object.
- */
- if (!(node->flags & ANOBJ_EVALUATED)) {
- /*
- * Check for a predefined ACPI name. If found, validate the
- * returned object.
- *
- * Note: Ignore return status for now, emit warnings if there are
- * problems with the returned object. May change later to abort
- * the method on invalid return object.
- */
- (void)acpi_ns_check_predefined_names(node,
- info->
- return_object);
- }
-
- /* Mark the node as having been evaluated */
-
- node->flags |= ANOBJ_EVALUATED;
- }
+ /*
+ * Check input argument count against the ASL-defined count for a method.
+ * Also check predefined names: argument count and return value against
+ * the ACPI specification. Some incorrect return value types are repaired.
+ */
+ (void)acpi_ns_check_predefined_names(node, info->param_count,
+ status, &info->return_object);
/* Check if there is a return value that must be dealt with */
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acdispat.h"
+#include "acinterp.h"
#include <linux/nmi.h>
#define _COMPONENT ACPI_NAMESPACE
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acdispat.h>
-#include <acpi/actables.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acdispat.h"
+#include "actables.h"
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsload")
*/
#include <acpi/acpi.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "amlcode.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsnames")
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsobject")
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acparser.h>
-#include <acpi/acdispat.h>
-#include <acpi/actables.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acparser.h"
+#include "acdispat.h"
+#include "actables.h"
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsparse")
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acpredef.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acpredef.h"
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nspredef")
/* Local prototypes */
static acpi_status
acpi_ns_check_package(char *pathname,
- union acpi_operand_object *return_object,
+ union acpi_operand_object **return_object_ptr,
const union acpi_predefined_info *predefined);
static acpi_status
static acpi_status
acpi_ns_check_object_type(char *pathname,
- union acpi_operand_object *return_object,
+ union acpi_operand_object **return_object_ptr,
u32 expected_btypes, u32 package_index);
static acpi_status
acpi_ns_check_reference(char *pathname,
union acpi_operand_object *return_object);
+static acpi_status
+acpi_ns_repair_object(u32 expected_btypes,
+ u32 package_index,
+ union acpi_operand_object **return_object_ptr);
+
/*
* Names for the types that can be returned by the predefined objects.
* Used for warning messages. Must be in the same order as the ACPI_RTYPEs
* FUNCTION: acpi_ns_check_predefined_names
*
* PARAMETERS: Node - Namespace node for the method/object
- * return_object - Object returned from the evaluation of this
- * method/object
+ * return_object_ptr - Pointer to the object returned from the
+ * evaluation of a method or object
*
* RETURN: Status
*
acpi_status
acpi_ns_check_predefined_names(struct acpi_namespace_node *node,
- union acpi_operand_object *return_object)
+ u32 user_param_count,
+ acpi_status return_status,
+ union acpi_operand_object **return_object_ptr)
{
+ union acpi_operand_object *return_object = *return_object_ptr;
acpi_status status = AE_OK;
const union acpi_predefined_info *predefined;
char *pathname;
/* Match the name for this method/object against the predefined list */
predefined = acpi_ns_check_for_predefined_name(node);
- if (!predefined) {
-
- /* Name was not one of the predefined names */
-
- return (AE_OK);
- }
/* Get the full pathname to the object, for use in error messages */
}
/*
- * Check that the parameter count for this method is in accordance
- * with the ACPI specification.
+ * Check that the parameter count for this method matches the ASL
+ * definition. For predefined names, ensure that both the caller and
+ * the method itself are in accordance with the ACPI specification.
*/
- acpi_ns_check_parameter_count(pathname, node, predefined);
+ acpi_ns_check_parameter_count(pathname, node, user_param_count,
+ predefined);
+
+ /* If not a predefined name, we cannot validate the return object */
+
+ if (!predefined) {
+ goto exit;
+ }
+
+ /* If the method failed, we cannot validate the return object */
+
+ if ((return_status != AE_OK) && (return_status != AE_CTRL_RETURN_VALUE)) {
+ goto exit;
+ }
+
+ /*
+ * Only validate the return value on the first successful evaluation of
+ * the method. This ensures that any warnings will only be emitted during
+ * the very first evaluation of the method/object.
+ */
+ if (node->flags & ANOBJ_EVALUATED) {
+ goto exit;
+ }
+
+ /* Mark the node as having been successfully evaluated */
+
+ node->flags |= ANOBJ_EVALUATED;
/*
* If there is no return value, check if we require a return value for
* We have a return value, but if one wasn't expected, just exit, this is
* not a problem
*
- * For example, if "Implicit return value" is enabled, methods will
+ * For example, if the "Implicit Return" feature is enabled, methods will
* always return a value
*/
if (!predefined->info.expected_btypes) {
* Check that the type of the return object is what is expected for
* this predefined name
*/
- status = acpi_ns_check_object_type(pathname, return_object,
+ status = acpi_ns_check_object_type(pathname, return_object_ptr,
predefined->info.expected_btypes,
ACPI_NOT_PACKAGE);
if (ACPI_FAILURE(status)) {
if (ACPI_GET_OBJECT_TYPE(return_object) == ACPI_TYPE_PACKAGE) {
status =
- acpi_ns_check_package(pathname, return_object, predefined);
+ acpi_ns_check_package(pathname, return_object_ptr,
+ predefined);
}
exit:
- if (pathname) {
+ if (pathname != predefined->info.name) {
ACPI_FREE(pathname);
}
*
* PARAMETERS: Pathname - Full pathname to the node (for error msgs)
* Node - Namespace node for the method/object
+ * user_param_count - Number of args passed in by the caller
* Predefined - Pointer to entry in predefined name table
*
* RETURN: None
void
acpi_ns_check_parameter_count(char *pathname,
struct acpi_namespace_node *node,
+ u32 user_param_count,
const union acpi_predefined_info *predefined)
{
u32 param_count;
u32 required_params_current;
u32 required_params_old;
- /*
- * Check that the ASL-defined parameter count is what is expected for
- * this predefined name.
- *
- * Methods have 0-7 parameters. All other types have zero.
- */
+ /* Methods have 0-7 parameters. All other types have zero. */
+
param_count = 0;
if (node->type == ACPI_TYPE_METHOD) {
param_count = node->object->method.param_count;
}
- /* Validate parameter count - allow two different legal counts (_SCP) */
+ /* Argument count check for non-predefined methods/objects */
+
+ if (!predefined) {
+ /*
+ * Warning if too few or too many arguments have been passed by the
+ * caller. An incorrect number of arguments may not cause the method
+ * to fail. However, the method will fail if there are too few
+ * arguments and the method attempts to use one of the missing ones.
+ */
+ if (user_param_count < param_count) {
+ ACPI_WARNING((AE_INFO,
+ "%s: Insufficient arguments - needs %d, found %d",
+ pathname, param_count, user_param_count));
+ } else if (user_param_count > param_count) {
+ ACPI_WARNING((AE_INFO,
+ "%s: Excess arguments - needs %d, found %d",
+ pathname, param_count, user_param_count));
+ }
+ return;
+ }
+
+ /* Allow two different legal argument counts (_SCP, etc.) */
required_params_current = predefined->info.param_count & 0x0F;
required_params_old = predefined->info.param_count >> 4;
+ if (user_param_count != ACPI_UINT32_MAX) {
+
+ /* Validate the user-supplied parameter count */
+
+ if ((user_param_count != required_params_current) &&
+ (user_param_count != required_params_old)) {
+ ACPI_WARNING((AE_INFO,
+ "%s: Parameter count mismatch - caller passed %d, ACPI requires %d",
+ pathname, user_param_count,
+ required_params_current));
+ }
+ }
+
+ /*
+ * Only validate the argument count on the first successful evaluation of
+ * the method. This ensures that any warnings will only be emitted during
+ * the very first evaluation of the method/object.
+ */
+ if (node->flags & ANOBJ_EVALUATED) {
+ return;
+ }
+
+ /*
+ * Check that the ASL-defined parameter count is what is expected for
+ * this predefined name.
+ */
if ((param_count != required_params_current) &&
(param_count != required_params_old)) {
ACPI_WARNING((AE_INFO,
- "%s: Parameter count mismatch - ASL declared %d, expected %d",
+ "%s: Parameter count mismatch - ASL declared %d, ACPI requires %d",
pathname, param_count, required_params_current));
}
}
* FUNCTION: acpi_ns_check_package
*
* PARAMETERS: Pathname - Full pathname to the node (for error msgs)
- * return_object - Object returned from the evaluation of a
- * method or object
+ * return_object_ptr - Pointer to the object returned from the
+ * evaluation of a method or object
* Predefined - Pointer to entry in predefined name table
*
* RETURN: Status
static acpi_status
acpi_ns_check_package(char *pathname,
- union acpi_operand_object *return_object,
+ union acpi_operand_object **return_object_ptr,
const union acpi_predefined_info *predefined)
{
+ union acpi_operand_object *return_object = *return_object_ptr;
const union acpi_predefined_info *package;
union acpi_operand_object *sub_package;
union acpi_operand_object **elements;
* elements must be of the same type
*/
for (i = 0; i < count; i++) {
- status = acpi_ns_check_object_type(pathname, *elements,
+ status = acpi_ns_check_object_type(pathname, elements,
package->ret_info.
object_type1, i);
if (ACPI_FAILURE(status)) {
status =
acpi_ns_check_object_type(pathname,
- *elements,
+ elements,
package->
ret_info3.
object_type[i],
status =
acpi_ns_check_object_type(pathname,
- *elements,
+ elements,
package->
ret_info3.
tail_object_type,
/* First element is the (Integer) count of sub-packages to follow */
- status = acpi_ns_check_object_type(pathname, *elements,
+ status = acpi_ns_check_object_type(pathname, elements,
ACPI_RTYPE_INTEGER, 0);
if (ACPI_FAILURE(status)) {
return (status);
/* Each sub-object must be of type Package */
status =
- acpi_ns_check_object_type(pathname, sub_package,
+ acpi_ns_check_object_type(pathname, &sub_package,
ACPI_RTYPE_PACKAGE, i);
if (ACPI_FAILURE(status)) {
return (status);
for (j = 0; j < expected_count; j++) {
status =
acpi_ns_check_object_type(pathname,
- sub_elements
- [j],
- package->
- ret_info2.
- object_type
- [j], j);
+ &sub_elements[j],
+ package->ret_info2.object_type[j], j);
if (ACPI_FAILURE(status)) {
return (status);
}
status =
acpi_ns_check_object_type(pathname,
- *sub_elements,
+ sub_elements,
ACPI_RTYPE_INTEGER,
0);
if (ACPI_FAILURE(status)) {
* The second group can have a count of zero.
*/
for (i = 0; i < count1; i++) {
- status = acpi_ns_check_object_type(pathname, *this_element,
+ status = acpi_ns_check_object_type(pathname, this_element,
type1, i);
if (ACPI_FAILURE(status)) {
return (status);
}
for (i = 0; i < count2; i++) {
- status = acpi_ns_check_object_type(pathname, *this_element,
+ status = acpi_ns_check_object_type(pathname, this_element,
type2, (i + count1));
if (ACPI_FAILURE(status)) {
return (status);
* FUNCTION: acpi_ns_check_object_type
*
* PARAMETERS: Pathname - Full pathname to the node (for error msgs)
- * return_object - Object return from the execution of this
- * method/object
+ * return_object_ptr - Pointer to the object returned from the
+ * evaluation of a method or object
* expected_btypes - Bitmap of expected return type(s)
* package_index - Index of object within parent package (if
* applicable - ACPI_NOT_PACKAGE otherwise)
static acpi_status
acpi_ns_check_object_type(char *pathname,
- union acpi_operand_object *return_object,
+ union acpi_operand_object **return_object_ptr,
u32 expected_btypes, u32 package_index)
{
+ union acpi_operand_object *return_object = *return_object_ptr;
acpi_status status = AE_OK;
u32 return_btype;
char type_buffer[48]; /* Room for 5 types */
/* Is the object one of the expected types? */
if (!(return_btype & expected_btypes)) {
+
+ /* Type mismatch -- attempt repair of the returned object */
+
+ status = acpi_ns_repair_object(expected_btypes, package_index,
+ return_object_ptr);
+ if (ACPI_SUCCESS(status)) {
+ return (status);
+ }
goto type_error_exit;
}
return (AE_AML_OPERAND_TYPE);
}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_repair_object
+ *
+ * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
+ * package_index - Used to determine if target is in a package
+ * return_object_ptr - Pointer to the object returned from the
+ * evaluation of a method or object
+ *
+ * RETURN: Status. AE_OK if repair was successful.
+ *
+ * DESCRIPTION: Attempt to repair/convert a return object of a type that was
+ * not expected.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_repair_object(u32 expected_btypes,
+ u32 package_index,
+ union acpi_operand_object **return_object_ptr)
+{
+ union acpi_operand_object *return_object = *return_object_ptr;
+ union acpi_operand_object *new_object;
+ acpi_size length;
+
+ switch (ACPI_GET_OBJECT_TYPE(return_object)) {
+ case ACPI_TYPE_BUFFER:
+
+ if (!(expected_btypes & ACPI_RTYPE_STRING)) {
+ return (AE_AML_OPERAND_TYPE);
+ }
+
+ /*
+ * Have a Buffer, expected a String, convert. Use a to_string
+ * conversion, no transform performed on the buffer data. The best
+ * example of this is the _BIF method, where the string data from
+ * the battery is often (incorrectly) returned as buffer object(s).
+ */
+ length = 0;
+ while ((length < return_object->buffer.length) &&
+ (return_object->buffer.pointer[length])) {
+ length++;
+ }
+
+ /* Allocate a new string object */
+
+ new_object = acpi_ut_create_string_object(length);
+ if (!new_object) {
+ return (AE_NO_MEMORY);
+ }
+
+ /*
+ * Copy the raw buffer data with no transform. String is already NULL
+ * terminated at Length+1.
+ */
+ ACPI_MEMCPY(new_object->string.pointer,
+ return_object->buffer.pointer, length);
+
+ /* Install the new return object */
+
+ acpi_ut_remove_reference(return_object);
+ *return_object_ptr = new_object;
+
+ /*
+ * If the object is a package element, we need to:
+ * 1. Decrement the reference count of the orignal object, it was
+ * incremented when building the package
+ * 2. Increment the reference count of the new object, it will be
+ * decremented when releasing the package
+ */
+ if (package_index != ACPI_NOT_PACKAGE) {
+ acpi_ut_remove_reference(return_object);
+ acpi_ut_add_reference(new_object);
+ }
+ return (AE_OK);
+
+ default:
+ break;
+ }
+
+ return (AE_AML_OPERAND_TYPE);
+}
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nssearch")
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
-#include <acpi/amlcode.h>
-#include <acpi/actables.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "amlcode.h"
+#include "actables.h"
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsutils")
*
* strlen() + 1 covers the first name_seg, which has no path separator
*/
- if (acpi_ns_valid_root_prefix(next_external_char[0])) {
+ if (acpi_ns_valid_root_prefix(*next_external_char)) {
info->fully_qualified = TRUE;
next_external_char++;
+
+ /* Skip redundant root_prefix, like \\_SB.PCI0.SBRG.EC0 */
+
+ while (acpi_ns_valid_root_prefix(*next_external_char)) {
+ next_external_char++;
+ }
} else {
/*
* Handle Carat prefixes
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nswalk")
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acinterp.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acinterp.h"
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsxfeval")
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsxfname")
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsxfobj")
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acdispat.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "amlcode.h"
+#include "acnamesp.h"
+#include "acdispat.h"
#define _COMPONENT ACPI_PARSER
ACPI_MODULE_NAME("psargs")
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
-#include <acpi/acdispat.h>
-#include <acpi/amlcode.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "acdispat.h"
+#include "amlcode.h"
#define _COMPONENT ACPI_PARSER
ACPI_MODULE_NAME("psloop")
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
-#include <acpi/acopcode.h>
-#include <acpi/amlcode.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "acopcode.h"
+#include "amlcode.h"
#define _COMPONENT ACPI_PARSER
ACPI_MODULE_NAME("psopcode")
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
-#include <acpi/acdispat.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acinterp.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "acdispat.h"
+#include "amlcode.h"
+#include "acnamesp.h"
+#include "acinterp.h"
#define _COMPONENT ACPI_PARSER
ACPI_MODULE_NAME("psparse")
walk_state, walk_state->parser_state.aml,
walk_state->parser_state.aml_size));
+ if (!walk_state->parser_state.aml) {
+ return_ACPI_STATUS(AE_NULL_OBJECT);
+ }
+
/* Create and initialize a new thread state */
thread = acpi_ut_create_thread_state();
if (!thread) {
+ if (walk_state->method_desc) {
+
+ /* Executing a control method - additional cleanup */
+
+ acpi_ds_terminate_control_method(
+ walk_state->method_desc, walk_state);
+ }
+
acpi_ds_delete_walk_state(walk_state);
return_ACPI_STATUS(AE_NO_MEMORY);
}
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
+#include "accommon.h"
+#include "acparser.h"
#define _COMPONENT ACPI_PARSER
ACPI_MODULE_NAME("psscope")
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "amlcode.h"
#define _COMPONENT ACPI_PARSER
ACPI_MODULE_NAME("pstree")
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "amlcode.h"
#define _COMPONENT ACPI_PARSER
ACPI_MODULE_NAME("psutils")
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
+#include "accommon.h"
+#include "acparser.h"
#define _COMPONENT ACPI_PARSER
ACPI_MODULE_NAME("pswalk")
*/
#include <acpi/acpi.h>
-#include <acpi/acparser.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "acdispat.h"
+#include "acinterp.h"
+#include "amlcode.h"
#define _COMPONENT ACPI_PARSER
ACPI_MODULE_NAME("psxface")
goto cleanup;
}
+ /* Invoke an internal method if necessary */
+
+ if (info->obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) {
+ status = info->obj_desc->method.implementation(walk_state);
+ info->return_object = walk_state->return_desc;
+
+ /* Cleanup states */
+
+ acpi_ds_scope_stack_clear(walk_state);
+ acpi_ps_cleanup_scope(&walk_state->parser_state);
+ acpi_ds_terminate_control_method(walk_state->method_desc,
+ walk_state);
+ acpi_ds_delete_walk_state(walk_state);
+ goto cleanup;
+ }
+
+ /*
+ * Start method evaluation with an implicit return of zero.
+ * This is done for Windows compatibility.
+ */
+ if (acpi_gbl_enable_interpreter_slack) {
+ walk_state->implicit_return_obj =
+ acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!walk_state->implicit_return_obj) {
+ status = AE_NO_MEMORY;
+ acpi_ds_delete_walk_state(walk_state);
+ goto cleanup;
+ }
+
+ walk_state->implicit_return_obj->integer.value = 0;
+ }
+
/* Parse the AML */
status = acpi_ps_parse_aml(walk_state);
*/
#include <acpi/acpi.h>
-#include <acpi/acresrc.h>
+#include "accommon.h"
+#include "acresrc.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME("rsaddr")
*/
#include <acpi/acpi.h>
-#include <acpi/acresrc.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acresrc.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME("rscalc")
*/
#include <acpi/acpi.h>
-#include <acpi/acresrc.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acresrc.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME("rscreate")
*/
#include <acpi/acpi.h>
-#include <acpi/acresrc.h>
+#include "accommon.h"
+#include "acresrc.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME("rsdump")
*/
#include <acpi/acpi.h>
-#include <acpi/acresrc.h>
+#include "accommon.h"
+#include "acresrc.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME("rsinfo")
*/
#include <acpi/acpi.h>
-#include <acpi/acresrc.h>
+#include "accommon.h"
+#include "acresrc.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME("rsio")
*/
#include <acpi/acpi.h>
-#include <acpi/acresrc.h>
+#include "accommon.h"
+#include "acresrc.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME("rsirq")
*/
#include <acpi/acpi.h>
-#include <acpi/acresrc.h>
+#include "accommon.h"
+#include "acresrc.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME("rslist")
*/
#include <acpi/acpi.h>
-#include <acpi/acresrc.h>
+#include "accommon.h"
+#include "acresrc.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME("rsmemory")
*/
#include <acpi/acpi.h>
-#include <acpi/acresrc.h>
+#include "accommon.h"
+#include "acresrc.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME("rsmisc")
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acresrc.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acresrc.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME("rsutils")
*/
#include <acpi/acpi.h>
-#include <acpi/acresrc.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acresrc.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME("rsxface")
*/
#include <acpi/acpi.h>
-#include <acpi/actables.h>
+#include "accommon.h"
+#include "actables.h"
#define _COMPONENT ACPI_TABLES
ACPI_MODULE_NAME("tbfadt")
/* Local prototypes */
-static void inline
+static inline void
acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
- u8 byte_width, u64 address);
+ u8 space_id, u8 byte_width, u64 address);
static void acpi_tb_convert_fadt(void);
typedef struct acpi_fadt_info {
char *name;
- u8 target;
- u8 source;
+ u8 address64;
+ u8 address32;
u8 length;
+ u8 default_length;
u8 type;
} acpi_fadt_info;
#define ACPI_FADT_SEPARATE_LENGTH 2
static struct acpi_fadt_info fadt_info_table[] = {
- {"Pm1aEventBlock", ACPI_FADT_OFFSET(xpm1a_event_block),
+ {"Pm1aEventBlock",
+ ACPI_FADT_OFFSET(xpm1a_event_block),
ACPI_FADT_OFFSET(pm1a_event_block),
- ACPI_FADT_OFFSET(pm1_event_length), ACPI_FADT_REQUIRED},
+ ACPI_FADT_OFFSET(pm1_event_length),
+ ACPI_PM1_REGISTER_WIDTH * 2, /* Enable + Status register */
+ ACPI_FADT_REQUIRED},
- {"Pm1bEventBlock", ACPI_FADT_OFFSET(xpm1b_event_block),
+ {"Pm1bEventBlock",
+ ACPI_FADT_OFFSET(xpm1b_event_block),
ACPI_FADT_OFFSET(pm1b_event_block),
- ACPI_FADT_OFFSET(pm1_event_length), 0},
+ ACPI_FADT_OFFSET(pm1_event_length),
+ ACPI_PM1_REGISTER_WIDTH * 2, /* Enable + Status register */
+ 0},
- {"Pm1aControlBlock", ACPI_FADT_OFFSET(xpm1a_control_block),
+ {"Pm1aControlBlock",
+ ACPI_FADT_OFFSET(xpm1a_control_block),
ACPI_FADT_OFFSET(pm1a_control_block),
- ACPI_FADT_OFFSET(pm1_control_length), ACPI_FADT_REQUIRED},
+ ACPI_FADT_OFFSET(pm1_control_length),
+ ACPI_PM1_REGISTER_WIDTH,
+ ACPI_FADT_REQUIRED},
- {"Pm1bControlBlock", ACPI_FADT_OFFSET(xpm1b_control_block),
+ {"Pm1bControlBlock",
+ ACPI_FADT_OFFSET(xpm1b_control_block),
ACPI_FADT_OFFSET(pm1b_control_block),
- ACPI_FADT_OFFSET(pm1_control_length), 0},
+ ACPI_FADT_OFFSET(pm1_control_length),
+ ACPI_PM1_REGISTER_WIDTH,
+ 0},
- {"Pm2ControlBlock", ACPI_FADT_OFFSET(xpm2_control_block),
+ {"Pm2ControlBlock",
+ ACPI_FADT_OFFSET(xpm2_control_block),
ACPI_FADT_OFFSET(pm2_control_block),
- ACPI_FADT_OFFSET(pm2_control_length), ACPI_FADT_SEPARATE_LENGTH},
+ ACPI_FADT_OFFSET(pm2_control_length),
+ ACPI_PM2_REGISTER_WIDTH,
+ ACPI_FADT_SEPARATE_LENGTH},
- {"PmTimerBlock", ACPI_FADT_OFFSET(xpm_timer_block),
+ {"PmTimerBlock",
+ ACPI_FADT_OFFSET(xpm_timer_block),
ACPI_FADT_OFFSET(pm_timer_block),
- ACPI_FADT_OFFSET(pm_timer_length), ACPI_FADT_REQUIRED},
+ ACPI_FADT_OFFSET(pm_timer_length),
+ ACPI_PM_TIMER_WIDTH,
+ ACPI_FADT_REQUIRED},
- {"Gpe0Block", ACPI_FADT_OFFSET(xgpe0_block),
+ {"Gpe0Block",
+ ACPI_FADT_OFFSET(xgpe0_block),
ACPI_FADT_OFFSET(gpe0_block),
- ACPI_FADT_OFFSET(gpe0_block_length), ACPI_FADT_SEPARATE_LENGTH},
+ ACPI_FADT_OFFSET(gpe0_block_length),
+ 0,
+ ACPI_FADT_SEPARATE_LENGTH},
- {"Gpe1Block", ACPI_FADT_OFFSET(xgpe1_block),
+ {"Gpe1Block",
+ ACPI_FADT_OFFSET(xgpe1_block),
ACPI_FADT_OFFSET(gpe1_block),
- ACPI_FADT_OFFSET(gpe1_block_length), ACPI_FADT_SEPARATE_LENGTH}
+ ACPI_FADT_OFFSET(gpe1_block_length),
+ 0,
+ ACPI_FADT_SEPARATE_LENGTH}
};
#define ACPI_FADT_INFO_ENTRIES (sizeof (fadt_info_table) / sizeof (struct acpi_fadt_info))
*
******************************************************************************/
-static void inline
+static inline void
acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
- u8 byte_width, u64 address)
+ u8 space_id, u8 byte_width, u64 address)
{
/*
/* All other fields are byte-wide */
- generic_address->space_id = ACPI_ADR_SPACE_SYSTEM_IO;
- generic_address->bit_width = byte_width << 3;
+ generic_address->space_id = space_id;
+ generic_address->bit_width = (u8)ACPI_MUL_8(byte_width);
generic_address->bit_offset = 0;
- generic_address->access_width = 0;
+ generic_address->access_width = 0; /* Access width ANY */
}
/*******************************************************************************
*/
if (length > sizeof(struct acpi_table_fadt)) {
ACPI_WARNING((AE_INFO,
- "FADT (revision %u) is longer than ACPI 2.0 version, truncating length 0x%X to 0x%zX",
+ "FADT (revision %u) is longer than ACPI 2.0 version, "
+ "truncating length 0x%X to 0x%zX",
table->revision, (unsigned)length,
sizeof(struct acpi_table_fadt)));
}
* 2) Validate some of the important values within the FADT
*/
acpi_tb_convert_fadt();
- acpi_tb_validate_fadt();
}
/*******************************************************************************
static void acpi_tb_convert_fadt(void)
{
- u8 pm1_register_length;
- struct acpi_generic_address *target;
+ u8 pm1_register_bit_width;
+ u8 pm1_register_byte_width;
+ struct acpi_generic_address *target64;
u32 i;
/* Update the local FADT table header length */
acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt);
- /* Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary */
-
+ /*
+ * Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary.
+ * Later code will always use the X 64-bit field. Also, check for an
+ * address mismatch between the 32-bit and 64-bit address fields
+ * (FIRMWARE_CTRL/X_FIRMWARE_CTRL, DSDT/X_DSDT) which would indicate
+ * the presence of two FACS or two DSDT tables.
+ */
if (!acpi_gbl_FADT.Xfacs) {
acpi_gbl_FADT.Xfacs = (u64) acpi_gbl_FADT.facs;
+ } else if (acpi_gbl_FADT.facs &&
+ (acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) {
+ ACPI_WARNING((AE_INFO,
+ "32/64 FACS address mismatch in FADT - two FACS tables!"));
}
if (!acpi_gbl_FADT.Xdsdt) {
acpi_gbl_FADT.Xdsdt = (u64) acpi_gbl_FADT.dsdt;
+ } else if (acpi_gbl_FADT.dsdt &&
+ (acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) {
+ ACPI_WARNING((AE_INFO,
+ "32/64 DSDT address mismatch in FADT - two DSDT tables!"));
}
/*
}
/*
- * Expand the ACPI 1.0 32-bit V1.0 addresses to the ACPI 2.0 64-bit "X"
- * generic address structures as necessary.
+ * Expand the ACPI 1.0 32-bit addresses to the ACPI 2.0 64-bit "X"
+ * generic address structures as necessary. Later code will always use
+ * the 64-bit address structures.
*/
for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
- target =
+ target64 =
ACPI_ADD_PTR(struct acpi_generic_address, &acpi_gbl_FADT,
- fadt_info_table[i].target);
+ fadt_info_table[i].address64);
- /* Expand only if the X target is null */
+ /* Expand only if the 64-bit X target is null */
- if (!target->address) {
- acpi_tb_init_generic_address(target,
+ if (!target64->address) {
+
+ /* The space_id is always I/O for the 32-bit legacy address fields */
+
+ acpi_tb_init_generic_address(target64,
+ ACPI_ADR_SPACE_SYSTEM_IO,
*ACPI_ADD_PTR(u8,
&acpi_gbl_FADT,
fadt_info_table
&acpi_gbl_FADT,
fadt_info_table
[i].
- source));
+ address32));
+ }
+ }
+
+ /* Validate FADT values now, before we make any changes */
+
+ acpi_tb_validate_fadt();
+
+ /*
+ * Optionally check all register lengths against the default values and
+ * update them if they are incorrect.
+ */
+ if (acpi_gbl_use_default_register_widths) {
+ for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
+ target64 =
+ ACPI_ADD_PTR(struct acpi_generic_address,
+ &acpi_gbl_FADT,
+ fadt_info_table[i].address64);
+
+ /*
+ * If a valid register (Address != 0) and the (default_length > 0)
+ * (Not a GPE register), then check the width against the default.
+ */
+ if ((target64->address) &&
+ (fadt_info_table[i].default_length > 0) &&
+ (fadt_info_table[i].default_length !=
+ target64->bit_width)) {
+ ACPI_WARNING((AE_INFO,
+ "Invalid length for %s: %d, using default %d",
+ fadt_info_table[i].name,
+ target64->bit_width,
+ fadt_info_table[i].
+ default_length));
+
+ /* Incorrect size, set width to the default */
+
+ target64->bit_width =
+ fadt_info_table[i].default_length;
+ }
}
}
+ /*
+ * Get the length of the individual PM1 registers (enable and status).
+ * Each register is defined to be (event block length / 2).
+ */
+ pm1_register_bit_width =
+ (u8)ACPI_DIV_2(acpi_gbl_FADT.xpm1a_event_block.bit_width);
+ pm1_register_byte_width = (u8)ACPI_DIV_8(pm1_register_bit_width);
+
+ /*
+ * Adjust the lengths of the PM1 Event Blocks so that they can be used to
+ * access the PM1 status register(s). Use (width / 2)
+ */
+ acpi_gbl_FADT.xpm1a_event_block.bit_width = pm1_register_bit_width;
+ acpi_gbl_FADT.xpm1b_event_block.bit_width = pm1_register_bit_width;
+
/*
* Calculate separate GAS structs for the PM1 Enable registers.
* These addresses do not appear (directly) in the FADT, so it is
" PM1_EVT_LEN (%u)\n",
acpi_gbl_FADT.xpm1a_event_block.bit_width,
acpi_gbl_FADT.pm1_event_length);
- pm1_register_length = (u8) ACPI_DIV_2(acpi_gbl_FADT.pm1_event_length);
/* The PM1A register block is required */
acpi_tb_init_generic_address(&acpi_gbl_xpm1a_enable,
- pm1_register_length,
+ acpi_gbl_FADT.xpm1a_event_block.space_id,
+ pm1_register_byte_width,
(acpi_gbl_FADT.xpm1a_event_block.address +
- pm1_register_length));
+ pm1_register_byte_width));
/* Don't forget to copy space_id of the GAS */
acpi_gbl_xpm1a_enable.space_id =
acpi_gbl_FADT.xpm1a_event_block.space_id;
acpi_gbl_FADT.xpm1b_event_block.bit_width,
acpi_gbl_FADT.pm1_event_length);
acpi_tb_init_generic_address(&acpi_gbl_xpm1b_enable,
- pm1_register_length,
+ acpi_gbl_FADT.xpm1b_event_block.space_id,
+ pm1_register_byte_width,
(acpi_gbl_FADT.xpm1b_event_block.
- address + pm1_register_length));
+ address + pm1_register_byte_width));
/* Don't forget to copy space_id of the GAS */
acpi_gbl_xpm1b_enable.space_id =
acpi_gbl_FADT.xpm1b_event_block.space_id;
static void acpi_tb_validate_fadt(void)
{
+ char *name;
u32 *address32;
struct acpi_generic_address *address64;
u8 length;
u32 i;
- /* Examine all of the 64-bit extended address fields (X fields) */
+ /*
+ * Check for FACS and DSDT address mismatches. An address mismatch between
+ * the 32-bit and 64-bit address fields (FIRMWARE_CTRL/X_FIRMWARE_CTRL and
+ * DSDT/X_DSDT) would indicate the presence of two FACS or two DSDT tables.
+ */
+ if (acpi_gbl_FADT.facs &&
+ (acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) {
+ ACPI_WARNING((AE_INFO,
+ "32/64X FACS address mismatch in FADT - "
+ "two FACS tables! %8.8X/%8.8X%8.8X",
+ acpi_gbl_FADT.facs,
+ ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xfacs)));
+ }
- for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
+ if (acpi_gbl_FADT.dsdt &&
+ (acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) {
+ ACPI_WARNING((AE_INFO,
+ "32/64X DSDT address mismatch in FADT - "
+ "two DSDT tables! %8.8X/%8.8X%8.8X",
+ acpi_gbl_FADT.dsdt,
+ ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xdsdt)));
+ }
- /* Generate pointers to the 32-bit and 64-bit addresses and get the length */
+ /* Examine all of the 64-bit extended address fields (X fields) */
- address64 =
- ACPI_ADD_PTR(struct acpi_generic_address, &acpi_gbl_FADT,
- fadt_info_table[i].target);
+ for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
+ /*
+ * Generate pointers to the 32-bit and 64-bit addresses, get the
+ * register length (width), and the register name
+ */
+ address64 = ACPI_ADD_PTR(struct acpi_generic_address,
+ &acpi_gbl_FADT,
+ fadt_info_table[i].address64);
address32 =
ACPI_ADD_PTR(u32, &acpi_gbl_FADT,
- fadt_info_table[i].source);
+ fadt_info_table[i].address32);
length =
*ACPI_ADD_PTR(u8, &acpi_gbl_FADT,
fadt_info_table[i].length);
+ name = fadt_info_table[i].name;
+
+ /*
+ * For each extended field, check for length mismatch between the
+ * legacy length field and the corresponding 64-bit X length field.
+ */
+ if (address64 && (address64->bit_width != ACPI_MUL_8(length))) {
+ ACPI_WARNING((AE_INFO,
+ "32/64X length mismatch in %s: %d/%d",
+ name, ACPI_MUL_8(length),
+ address64->bit_width));
+ }
if (fadt_info_table[i].type & ACPI_FADT_REQUIRED) {
/*
*/
if (!address64->address || !length) {
ACPI_ERROR((AE_INFO,
- "Required field \"%s\" has zero address and/or length: %8.8X%8.8X/%X",
- fadt_info_table[i].name,
+ "Required field %s has zero address and/or length: %8.8X%8.8X/%X",
+ name,
ACPI_FORMAT_UINT64(address64->
address),
length));
if ((address64->address && !length)
|| (!address64->address && length)) {
ACPI_WARNING((AE_INFO,
- "Optional field \"%s\" has zero address or length: %8.8X%8.8X/%X",
- fadt_info_table[i].name,
+ "Optional field %s has zero address or length: %8.8X%8.8X/%X",
+ name,
ACPI_FORMAT_UINT64(address64->
address),
length));
if (address64->address && *address32 &&
(address64->address != (u64) * address32)) {
ACPI_ERROR((AE_INFO,
- "32/64X address mismatch in \"%s\": [%8.8X] [%8.8X%8.8X], using 64X",
- fadt_info_table[i].name, *address32,
+ "32/64X address mismatch in %s: %8.8X/%8.8X%8.8X, using 64X",
+ name, *address32,
ACPI_FORMAT_UINT64(address64->address)));
}
}
*/
#include <acpi/acpi.h>
-#include <acpi/actables.h>
+#include "accommon.h"
+#include "actables.h"
#define _COMPONENT ACPI_TABLES
ACPI_MODULE_NAME("tbfind")
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
-#include <acpi/actables.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "actables.h"
#define _COMPONENT ACPI_TABLES
ACPI_MODULE_NAME("tbinstal")
*/
#include <acpi/acpi.h>
-#include <acpi/actables.h>
+#include "accommon.h"
+#include "actables.h"
#define _COMPONENT ACPI_TABLES
ACPI_MODULE_NAME("tbutils")
return AE_OK;
}
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_initialize_facs
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a permanent mapping for the FADT and save it in a global
+ * for accessing the Global Lock and Firmware Waking Vector
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_initialize_facs(void)
+{
+ acpi_status status;
+
+ status = acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS,
+ ACPI_CAST_INDIRECT_PTR(struct
+ acpi_table_header,
+ &acpi_gbl_FACS));
+ return status;
+}
+
/*******************************************************************************
*
* FUNCTION: acpi_tb_tables_loaded
/* Differentiate between RSDT and XSDT root tables */
- if (rsdp->revision > 1 && rsdp->xsdt_physical_address) {
+ if (rsdp->revision > 1 && rsdp->xsdt_physical_address
+ && !acpi_rsdt_forced) {
/*
* Root table is an XSDT (64-bit physical addresses). We must use the
* XSDT if the revision is > 1 and the XSDT pointer is present, as per
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
-#include <acpi/actables.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "actables.h"
#define _COMPONENT ACPI_TABLES
ACPI_MODULE_NAME("tbxface")
*/
#include <acpi/acpi.h>
-#include <acpi/actables.h>
+#include "accommon.h"
+#include "actables.h"
#define _COMPONENT ACPI_TABLES
ACPI_MODULE_NAME("tbxfroot")
*/
#include <acpi/acpi.h>
-#include <acpi/acdebug.h>
+#include "accommon.h"
+#include "acdebug.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utalloc")
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_UTILITIES
*/
#include <acpi/acpi.h>
+#include "accommon.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utdebug")
/*******************************************************************************
*
- * FUNCTION: acpi_ut_debug_print
+ * FUNCTION: acpi_debug_print
*
* PARAMETERS: requested_debug_level - Requested debug print level
* line_number - Caller's line number (for error output)
******************************************************************************/
void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_debug_print(u32 requested_debug_level,
- u32 line_number,
- const char *function_name,
- const char *module_name,
- u32 component_id, const char *format, ...)
+acpi_debug_print(u32 requested_debug_level,
+ u32 line_number,
+ const char *function_name,
+ const char *module_name,
+ u32 component_id, const char *format, ...)
{
acpi_thread_id thread_id;
va_list args;
va_end(args);
}
-ACPI_EXPORT_SYMBOL(acpi_ut_debug_print)
+ACPI_EXPORT_SYMBOL(acpi_debug_print)
/*******************************************************************************
*
- * FUNCTION: acpi_ut_debug_print_raw
+ * FUNCTION: acpi_debug_print_raw
*
* PARAMETERS: requested_debug_level - Requested debug print level
* line_number - Caller's line number
*
******************************************************************************/
void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_debug_print_raw(u32 requested_debug_level,
- u32 line_number,
- const char *function_name,
- const char *module_name,
- u32 component_id, const char *format, ...)
+acpi_debug_print_raw(u32 requested_debug_level,
+ u32 line_number,
+ const char *function_name,
+ const char *module_name,
+ u32 component_id, const char *format, ...)
{
va_list args;
va_end(args);
}
-ACPI_EXPORT_SYMBOL(acpi_ut_debug_print_raw)
+ACPI_EXPORT_SYMBOL(acpi_debug_print_raw)
/*******************************************************************************
*
acpi_gbl_nesting_level++;
acpi_ut_track_stack_ptr();
- acpi_ut_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name,
- component_id, "%s\n", acpi_gbl_fn_entry_str);
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name, component_id,
+ "%s\n", acpi_gbl_fn_entry_str);
}
ACPI_EXPORT_SYMBOL(acpi_ut_trace)
acpi_gbl_nesting_level++;
acpi_ut_track_stack_ptr();
- acpi_ut_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name,
- component_id, "%s %p\n", acpi_gbl_fn_entry_str,
- pointer);
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name, component_id,
+ "%s %p\n", acpi_gbl_fn_entry_str, pointer);
}
/*******************************************************************************
acpi_gbl_nesting_level++;
acpi_ut_track_stack_ptr();
- acpi_ut_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name,
- component_id, "%s %s\n", acpi_gbl_fn_entry_str,
- string);
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name, component_id,
+ "%s %s\n", acpi_gbl_fn_entry_str, string);
}
/*******************************************************************************
acpi_gbl_nesting_level++;
acpi_ut_track_stack_ptr();
- acpi_ut_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name,
- component_id, "%s %08X\n", acpi_gbl_fn_entry_str,
- integer);
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name, component_id,
+ "%s %08X\n", acpi_gbl_fn_entry_str, integer);
}
/*******************************************************************************
const char *module_name, u32 component_id)
{
- acpi_ut_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name,
- component_id, "%s\n", acpi_gbl_fn_exit_str);
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name, component_id,
+ "%s\n", acpi_gbl_fn_exit_str);
acpi_gbl_nesting_level--;
}
{
if (ACPI_SUCCESS(status)) {
- acpi_ut_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name,
- component_id, "%s %s\n",
- acpi_gbl_fn_exit_str,
- acpi_format_exception(status));
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name,
+ component_id, "%s %s\n", acpi_gbl_fn_exit_str,
+ acpi_format_exception(status));
} else {
- acpi_ut_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name,
- component_id, "%s ****Exception****: %s\n",
- acpi_gbl_fn_exit_str,
- acpi_format_exception(status));
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name,
+ component_id, "%s ****Exception****: %s\n",
+ acpi_gbl_fn_exit_str,
+ acpi_format_exception(status));
}
acpi_gbl_nesting_level--;
u32 component_id, acpi_integer value)
{
- acpi_ut_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name,
- component_id, "%s %8.8X%8.8X\n",
- acpi_gbl_fn_exit_str, ACPI_FORMAT_UINT64(value));
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name, component_id,
+ "%s %8.8X%8.8X\n", acpi_gbl_fn_exit_str,
+ ACPI_FORMAT_UINT64(value));
acpi_gbl_nesting_level--;
}
const char *module_name, u32 component_id, u8 *ptr)
{
- acpi_ut_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name,
- component_id, "%s %p\n", acpi_gbl_fn_exit_str, ptr);
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name, component_id,
+ "%s %p\n", acpi_gbl_fn_exit_str, ptr);
acpi_gbl_nesting_level--;
}
*/
#include <acpi/acpi.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acevents.h>
+#include "accommon.h"
+#include "acinterp.h"
+#include "acnamesp.h"
+#include "acevents.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utdelete")
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acinterp.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acinterp.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("uteval")
/* The interface is supported */
- return_ACPI_STATUS(AE_CTRL_TERMINATE);
+ return_ACPI_STATUS(AE_OK);
}
}
/* The interface is supported */
- return_ACPI_STATUS(AE_CTRL_TERMINATE);
+ return_ACPI_STATUS(AE_OK);
}
/* The interface is not supported */
return_desc->integer.value = 0;
- return_ACPI_STATUS(AE_CTRL_TERMINATE);
+ return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
#define DEFINE_ACPI_GLOBALS
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acnamesp.h"
-ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
#define _COMPONENT ACPI_UTILITIES
- ACPI_MODULE_NAME("utglobal")
+ACPI_MODULE_NAME("utglobal")
/*******************************************************************************
*
"PCI_Config",
"EmbeddedControl",
"SMBus",
- "CMOS",
+ "SystemCMOS",
"PCIBARTarget",
"DataTable"
};
acpi_gbl_gpe_xrupt_list_head = NULL;
acpi_gbl_gpe_fadt_blocks[0] = NULL;
acpi_gbl_gpe_fadt_blocks[1] = NULL;
+ acpi_current_gpe_count = 0;
/* Global handlers */
acpi_gbl_global_lock_mutex = NULL;
acpi_gbl_global_lock_acquired = FALSE;
acpi_gbl_global_lock_handle = 0;
+ acpi_gbl_global_lock_present = FALSE;
/* Miscellaneous variables */
return_ACPI_STATUS(AE_OK);
}
+ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
ACPI_EXPORT_SYMBOL(acpi_dbg_level)
ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
+ACPI_EXPORT_SYMBOL(acpi_current_gpe_count)
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acevents.h>
-#include <acpi/actables.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acevents.h"
+#include "actables.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utinit")
*/
#include <acpi/acpi.h>
+#include "accommon.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utmath")
#include <linux/module.h>
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utmisc")
/*******************************************************************************
*
- * FUNCTION: acpi_ut_error, acpi_ut_warning, acpi_ut_info
+ * FUNCTION: acpi_error, acpi_exception, acpi_warning, acpi_info
*
* PARAMETERS: module_name - Caller's module name (for error output)
* line_number - Caller's line number (for error output)
******************************************************************************/
void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_error(const char *module_name, u32 line_number, const char *format, ...)
+acpi_error(const char *module_name, u32 line_number, const char *format, ...)
{
va_list args;
}
void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_exception(const char *module_name,
- u32 line_number, acpi_status status, const char *format, ...)
+acpi_exception(const char *module_name,
+ u32 line_number, acpi_status status, const char *format, ...)
{
va_list args;
va_end(args);
}
-EXPORT_SYMBOL(acpi_ut_exception);
-
void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_warning(const char *module_name,
- u32 line_number, const char *format, ...)
+acpi_warning(const char *module_name, u32 line_number, const char *format, ...)
{
va_list args;
}
void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_info(const char *module_name, u32 line_number, const char *format, ...)
+acpi_info(const char *module_name, u32 line_number, const char *format, ...)
{
va_list args;
acpi_os_printf("\n");
va_end(args);
}
+
+ACPI_EXPORT_SYMBOL(acpi_error)
+ACPI_EXPORT_SYMBOL(acpi_exception)
+ACPI_EXPORT_SYMBOL(acpi_warning)
+ACPI_EXPORT_SYMBOL(acpi_info)
*/
#include <acpi/acpi.h>
+#include "accommon.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utmutex")
*/
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utobject")
*/
#include <acpi/acpi.h>
-#include <acpi/amlresrc.h>
+#include "accommon.h"
+#include "amlresrc.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utresrc")
*/
#include <acpi/acpi.h>
+#include "accommon.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utstate")
*/
#include <acpi/acpi.h>
-#include <acpi/acevents.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acdebug.h>
+#include "accommon.h"
+#include "acevents.h"
+#include "acnamesp.h"
+#include "acdebug.h"
+#include "actables.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utxface")
}
}
+ /*
+ * Obtain a permanent mapping for the FACS. This is required for the
+ * Global Lock and the Firmware Waking Vector
+ */
+ status = acpi_tb_initialize_facs();
+ if (ACPI_FAILURE(status)) {
+ ACPI_WARNING((AE_INFO, "Could not map the FACS table"));
+ return_ACPI_STATUS(status);
+ }
+
/*
* Install the default op_region handlers. These are installed unless
* other handlers have already been installed via the
static int acpi_battery_update(struct acpi_battery *battery)
{
- int result;
+ int result, old_present = acpi_battery_present(battery);
result = acpi_battery_get_status(battery);
if (result)
return result;
return 0;
}
#endif
- if (!battery->update_time) {
+ if (!battery->update_time ||
+ old_present != acpi_battery_present(battery)) {
result = acpi_battery_get_info(battery);
if (result)
return result;
#include <linux/seq_file.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
-#include <acpi/acmacros.h>
-#include <acpi/actypes.h>
-#include <acpi/acutils.h>
ACPI_MODULE_NAME("cm_sbs");
#define ACPI_AC_CLASS "ac_adapter"
#include <linux/moduleparam.h>
#include <asm/uaccess.h>
#include <acpi/acpi_drivers.h>
-#include <acpi/acglobal.h>
#define _COMPONENT ACPI_SYSTEM_COMPONENT
ACPI_MODULE_NAME("debug");
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := dsfield.o dsmthdat.o dsopcode.o dswexec.o dswscope.o \
- dsmethod.o dsobject.o dsutils.o dswload.o dswstate.o \
- dsinit.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
#include <asm/io.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
-#include <acpi/actypes.h>
#define ACPI_EC_CLASS "embedded_controller"
#define ACPI_EC_DEVICE_NAME "Embedded Controller"
* Note: samsung nv5000 doesn't work with ec burst mode.
* http://bugzilla.kernel.org/show_bug.cgi?id=4980
*/
-int acpi_ec_burst_enable(struct acpi_ec *ec)
+static int acpi_ec_burst_enable(struct acpi_ec *ec)
{
u8 d;
struct transaction t = {.command = ACPI_EC_BURST_ENABLE,
return acpi_ec_transaction(ec, &t, 0);
}
-int acpi_ec_burst_disable(struct acpi_ec *ec)
+static int acpi_ec_burst_disable(struct acpi_ec *ec)
{
struct transaction t = {.command = ACPI_EC_BURST_DISABLE,
.wdata = NULL, .rdata = NULL,
acpi_ec_register_query_methods(acpi_handle handle, u32 level,
void *context, void **return_value)
{
- struct acpi_namespace_node *node = handle;
+ char node_name[5];
+ struct acpi_buffer buffer = { sizeof(node_name), node_name };
struct acpi_ec *ec = context;
int value = 0;
- if (sscanf(node->name.ascii, "_Q%x", &value) == 1) {
+ acpi_status status;
+
+ status = acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer);
+
+ if (ACPI_SUCCESS(status) && sscanf(node_name, "_Q%x", &value) == 1) {
acpi_ec_add_query_handler(ec, value, handle, NULL, NULL);
}
return AE_OK;
int __init acpi_ec_ecdt_probe(void)
{
- int ret;
acpi_status status;
struct acpi_table_ecdt *ecdt_ptr;
+ acpi_handle dummy;
boot_ec = make_acpi_ec();
if (!boot_ec)
boot_ec->gpe = ecdt_ptr->gpe;
boot_ec->handle = ACPI_ROOT_OBJECT;
acpi_get_handle(ACPI_ROOT_OBJECT, ecdt_ptr->id, &boot_ec->handle);
- } else {
- /* This workaround is needed only on some broken machines,
- * which require early EC, but fail to provide ECDT */
- acpi_handle x;
- printk(KERN_DEBUG PREFIX "Look up EC in DSDT\n");
- status = acpi_get_devices(ec_device_ids[0].id, ec_parse_device,
- boot_ec, NULL);
- /* Check that acpi_get_devices actually find something */
- if (ACPI_FAILURE(status) || !boot_ec->handle)
- goto error;
- /* We really need to limit this workaround, the only ASUS,
- * which needs it, has fake EC._INI method, so use it as flag.
- * Keep boot_ec struct as it will be needed soon.
- */
- if (ACPI_FAILURE(acpi_get_handle(boot_ec->handle, "_INI", &x)))
- return -ENODEV;
+ /* Add some basic check against completely broken table */
+ if (boot_ec->data_addr != boot_ec->command_addr)
+ goto install;
+ /* fall through */
}
-
- ret = ec_install_handlers(boot_ec);
- if (!ret) {
+ /* This workaround is needed only on some broken machines,
+ * which require early EC, but fail to provide ECDT */
+ printk(KERN_DEBUG PREFIX "Look up EC in DSDT\n");
+ status = acpi_get_devices(ec_device_ids[0].id, ec_parse_device,
+ boot_ec, NULL);
+ /* Check that acpi_get_devices actually find something */
+ if (ACPI_FAILURE(status) || !boot_ec->handle)
+ goto error;
+ /* We really need to limit this workaround, the only ASUS,
+ * which needs it, has fake EC._INI method, so use it as flag.
+ * Keep boot_ec struct as it will be needed soon.
+ */
+ if (ACPI_FAILURE(acpi_get_handle(boot_ec->handle, "_INI", &dummy)))
+ return -ENODEV;
+install:
+ if (!ec_install_handlers(boot_ec)) {
first_ec = boot_ec;
return 0;
}
- error:
+error:
kfree(boot_ec);
boot_ec = NULL;
return -ENODEV;
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := evevent.o evregion.o evsci.o evxfevnt.o \
- evmisc.o evrgnini.o evxface.o evxfregn.o \
- evgpe.o evgpeblk.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := exconfig.o exfield.o exnames.o exoparg6.o exresolv.o exstorob.o\
- exconvrt.o exfldio.o exoparg1.o exprep.o exresop.o exsystem.o\
- excreate.o exmisc.o exoparg2.o exregion.o exstore.o exutils.o \
- exdump.o exmutex.o exoparg3.o exresnte.o exstoren.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := hwacpi.o hwgpe.o hwregs.o hwsleep.o
-
-obj-$(ACPI_FUTURE_USAGE) += hwtimer.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
* cases.
*/
static bool set_sci_en_on_resume;
+/*
+ * The ACPI specification wants us to save NVS memory regions during hibernation
+ * and to restore them during the subsequent resume. However, it is not certain
+ * if this mechanism is going to work on all machines, so we allow the user to
+ * disable this mechanism using the 'acpi_sleep=s4_nonvs' kernel command line
+ * option.
+ */
+static bool s4_no_nvs;
+
+void __init acpi_s4_no_nvs(void)
+{
+ s4_no_nvs = true;
+}
/**
* acpi_pm_disable_gpes - Disable the GPEs.
*/
static int acpi_pm_disable_gpes(void)
{
- acpi_hw_disable_all_gpes();
+ acpi_disable_all_gpes();
return 0;
}
int error = __acpi_pm_prepare();
if (!error)
- acpi_hw_disable_all_gpes();
+ acpi_disable_all_gpes();
return error;
}
* (like wakeup GPE) haven't handler, this can avoid such GPE misfire.
* acpi_leave_sleep_state will reenable specific GPEs later
*/
- acpi_hw_disable_all_gpes();
+ acpi_disable_all_gpes();
local_irq_restore(flags);
printk(KERN_DEBUG "Back to C!\n");
static int acpi_hibernation_begin(void)
{
- acpi_target_sleep_state = ACPI_STATE_S4;
- acpi_sleep_tts_switch(acpi_target_sleep_state);
- return 0;
+ int error;
+
+ error = s4_no_nvs ? 0 : hibernate_nvs_alloc();
+ if (!error) {
+ acpi_target_sleep_state = ACPI_STATE_S4;
+ acpi_sleep_tts_switch(acpi_target_sleep_state);
+ }
+
+ return error;
+}
+
+static int acpi_hibernation_pre_snapshot(void)
+{
+ int error = acpi_pm_prepare();
+
+ if (!error)
+ hibernate_nvs_save();
+
+ return error;
}
static int acpi_hibernation_enter(void)
return ACPI_SUCCESS(status) ? 0 : -EFAULT;
}
+static void acpi_hibernation_finish(void)
+{
+ hibernate_nvs_free();
+ acpi_pm_finish();
+}
+
static void acpi_hibernation_leave(void)
{
/*
"cannot resume!\n");
panic("ACPI S4 hardware signature mismatch");
}
+ /* Restore the NVS memory area */
+ hibernate_nvs_restore();
}
static void acpi_pm_enable_gpes(void)
{
- acpi_hw_enable_all_runtime_gpes();
+ acpi_enable_all_runtime_gpes();
}
static struct platform_hibernation_ops acpi_hibernation_ops = {
.begin = acpi_hibernation_begin,
.end = acpi_pm_end,
- .pre_snapshot = acpi_pm_prepare,
- .finish = acpi_pm_finish,
+ .pre_snapshot = acpi_hibernation_pre_snapshot,
+ .finish = acpi_hibernation_finish,
.prepare = acpi_pm_prepare,
.enter = acpi_hibernation_enter,
.leave = acpi_hibernation_leave,
error = acpi_sleep_prepare(ACPI_STATE_S4);
+ if (!error) {
+ if (!s4_no_nvs)
+ error = hibernate_nvs_alloc();
+ if (!error)
+ acpi_target_sleep_state = ACPI_STATE_S4;
+ }
+ return error;
+}
+
+static int acpi_hibernation_pre_snapshot_old(void)
+{
+ int error = acpi_pm_disable_gpes();
+
if (!error)
- acpi_target_sleep_state = ACPI_STATE_S4;
+ hibernate_nvs_save();
+
return error;
}
static struct platform_hibernation_ops acpi_hibernation_ops_old = {
.begin = acpi_hibernation_begin_old,
.end = acpi_pm_end,
- .pre_snapshot = acpi_pm_disable_gpes,
- .finish = acpi_pm_finish,
+ .pre_snapshot = acpi_hibernation_pre_snapshot_old,
+ .finish = acpi_hibernation_finish,
.prepare = acpi_pm_disable_gpes,
.enter = acpi_hibernation_enter,
.leave = acpi_hibernation_leave,
{
/* Prepare to power off the system */
acpi_sleep_prepare(ACPI_STATE_S5);
- acpi_hw_disable_all_gpes();
+ acpi_disable_all_gpes();
}
static void acpi_power_off(void)
sleep_states[ACPI_STATE_S4] = 1;
printk(" S4");
if (!nosigcheck) {
- acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS,
+ acpi_get_table(ACPI_SIG_FACS, 1,
(struct acpi_table_header **)&facs);
if (facs)
s4_hardware_signature =
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := nsaccess.o nsload.o nssearch.o nsxfeval.o \
- nsalloc.o nseval.o nsnames.o nsutils.o nsxfname.o \
- nsdump.o nsinit.o nsobject.o nswalk.o nsxfobj.o \
- nsparse.o nspredef.o
-
-obj-$(ACPI_FUTURE_USAGE) += nsdumpdv.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
#include <linux/errno.h>
#include <linux/acpi.h>
#include <acpi/acpi_bus.h>
-#include <acpi/acmacros.h>
#define ACPI_NUMA 0x80000000
#define _COMPONENT ACPI_NUMA
dpc = kmalloc(sizeof(struct acpi_os_dpc), GFP_ATOMIC);
if (!dpc)
- return_ACPI_STATUS(AE_NO_MEMORY);
+ return AE_NO_MEMORY;
dpc->function = function;
dpc->context = context;
status = AE_ERROR;
kfree(dpc);
}
- return_ACPI_STATUS(status);
+ return status;
}
acpi_status acpi_os_execute(acpi_execute_type type,
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := psargs.o psparse.o psloop.o pstree.o pswalk.o \
- psopcode.o psscope.o psutils.o psxface.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
*/
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Device %s has PCI address %02x:%02x:%02x.%02x\n",
+ "Device %s has PCI address %04x:%02x:%02x.%d\n",
acpi_device_bid(device), id->segment, id->bus,
id->device, id->function));
int acpi_pci_bind(struct acpi_device *device)
{
int result = 0;
- acpi_status status = AE_OK;
- struct acpi_pci_data *data = NULL;
- struct acpi_pci_data *pdata = NULL;
- char *pathname = NULL;
- struct acpi_buffer buffer = { 0, NULL };
- acpi_handle handle = NULL;
+ acpi_status status;
+ struct acpi_pci_data *data;
+ struct acpi_pci_data *pdata;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ acpi_handle handle;
struct pci_dev *dev;
struct pci_bus *bus;
if (!device || !device->parent)
return -EINVAL;
- pathname = kzalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
- if (!pathname)
- return -ENOMEM;
- buffer.length = ACPI_PATHNAME_MAX;
- buffer.pointer = pathname;
-
data = kzalloc(sizeof(struct acpi_pci_data), GFP_KERNEL);
- if (!data) {
- kfree(pathname);
+ if (!data)
return -ENOMEM;
+
+ status = acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
+ if (ACPI_FAILURE(status)) {
+ kfree(data);
+ return -ENODEV;
}
- acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Binding PCI device [%s]...\n",
- pathname));
+ (char *)buffer.pointer));
/*
* Segment & Bus
data->id.device = device->pnp.bus_address >> 16;
data->id.function = device->pnp.bus_address & 0xFFFF;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "...to %02x:%02x:%02x.%02x\n",
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "...to %04x:%02x:%02x.%d\n",
data->id.segment, data->id.bus, data->id.device,
data->id.function));
}
if (!data->dev) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Device %02x:%02x:%02x.%02x not present in PCI namespace\n",
+ "Device %04x:%02x:%02x.%d not present in PCI namespace\n",
data->id.segment, data->id.bus,
data->id.device, data->id.function));
result = -ENODEV;
}
if (!data->dev->bus) {
printk(KERN_ERR PREFIX
- "Device %02x:%02x:%02x.%02x has invalid 'bus' field\n",
+ "Device %04x:%02x:%02x.%d has invalid 'bus' field\n",
data->id.segment, data->id.bus,
data->id.device, data->id.function);
result = -ENODEV;
*/
if (data->dev->subordinate) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Device %02x:%02x:%02x.%02x is a PCI bridge\n",
+ "Device %04x:%02x:%02x.%d is a PCI bridge\n",
data->id.segment, data->id.bus,
data->id.device, data->id.function));
data->bus = data->dev->subordinate;
}
end:
- kfree(pathname);
+ kfree(buffer.pointer);
if (result)
kfree(data);
static int acpi_pci_unbind(struct acpi_device *device)
{
int result = 0;
- acpi_status status = AE_OK;
- struct acpi_pci_data *data = NULL;
- char *pathname = NULL;
- struct acpi_buffer buffer = { 0, NULL };
+ acpi_status status;
+ struct acpi_pci_data *data;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
if (!device || !device->parent)
return -EINVAL;
- pathname = kzalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
- if (!pathname)
- return -ENOMEM;
+ status = acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
+ if (ACPI_FAILURE(status))
+ return -ENODEV;
- buffer.length = ACPI_PATHNAME_MAX;
- buffer.pointer = pathname;
- acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Unbinding PCI device [%s]...\n",
- pathname));
- kfree(pathname);
+ (char *) buffer.pointer));
+ kfree(buffer.pointer);
status =
acpi_get_data(device->handle, acpi_pci_data_handler,
struct acpi_pci_id *id, struct pci_bus *bus)
{
int result = 0;
- acpi_status status = AE_OK;
+ acpi_status status;
struct acpi_pci_data *data = NULL;
- char *pathname = NULL;
- struct acpi_buffer buffer = { 0, NULL };
-
- pathname = kzalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
- if (!pathname)
- return -ENOMEM;
-
- buffer.length = ACPI_PATHNAME_MAX;
- buffer.pointer = pathname;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
if (!device || !id || !bus) {
- kfree(pathname);
return -EINVAL;
}
data = kzalloc(sizeof(struct acpi_pci_data), GFP_KERNEL);
- if (!data) {
- kfree(pathname);
+ if (!data)
return -ENOMEM;
- }
data->id = *id;
data->bus = bus;
device->ops.bind = acpi_pci_bind;
device->ops.unbind = acpi_pci_unbind;
- acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
+ status = acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
+ if (ACPI_FAILURE(status)) {
+ kfree (data);
+ return -ENODEV;
+ }
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Binding PCI root bridge [%s] to "
- "%02x:%02x\n", pathname, id->segment, id->bus));
+ "%04x:%02x\n", (char *)buffer.pointer,
+ id->segment, id->bus));
status = acpi_attach_data(device->handle, acpi_pci_data_handler, data);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
"Unable to attach ACPI-PCI context to device %s",
- pathname));
+ (char *)buffer.pointer));
result = -ENODEV;
goto end;
}
end:
- kfree(pathname);
+ kfree(buffer.pointer);
if (result != 0)
kfree(data);
* Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
* Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
* Copyright (C) 2002 Dominik Brodowski <devel@brodo.de>
+ * (c) Copyright 2008 Hewlett-Packard Development Company, L.P.
+ * Bjorn Helgaas <bjorn.helgaas@hp.com>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
#define _COMPONENT ACPI_PCI_COMPONENT
ACPI_MODULE_NAME("pci_irq");
-static struct acpi_prt_list acpi_prt;
+struct acpi_prt_entry {
+ struct list_head list;
+ struct acpi_pci_id id;
+ u8 pin;
+ acpi_handle link;
+ u32 index; /* GSI, or link _CRS index */
+};
+
+static LIST_HEAD(acpi_prt_list);
static DEFINE_SPINLOCK(acpi_prt_lock);
+static inline char pin_name(int pin)
+{
+ return 'A' + pin - 1;
+}
+
/* --------------------------------------------------------------------------
PCI IRQ Routing Table (PRT) Support
-------------------------------------------------------------------------- */
-static struct acpi_prt_entry *acpi_pci_irq_find_prt_entry(int segment,
- int bus,
- int device, int pin)
+static struct acpi_prt_entry *acpi_pci_irq_find_prt_entry(struct pci_dev *dev,
+ int pin)
{
- struct acpi_prt_entry *entry = NULL;
-
- if (!acpi_prt.count)
- return NULL;
+ struct acpi_prt_entry *entry;
+ int segment = pci_domain_nr(dev->bus);
+ int bus = dev->bus->number;
+ int device = PCI_SLOT(dev->devfn);
- /*
- * Parse through all PRT entries looking for a match on the specified
- * PCI device's segment, bus, device, and pin (don't care about func).
- *
- */
spin_lock(&acpi_prt_lock);
- list_for_each_entry(entry, &acpi_prt.entries, node) {
+ list_for_each_entry(entry, &acpi_prt_list, list) {
if ((segment == entry->id.segment)
&& (bus == entry->id.bus)
&& (device == entry->id.device)
return entry;
}
}
-
spin_unlock(&acpi_prt_lock);
return NULL;
}
char *actual_source;
};
+#define PCI_INTX_PIN(c) (c - 'A' + 1)
+
/*
* These systems have incorrect _PRT entries. The BIOS claims the PCI
* interrupt at the listed segment/bus/device/pin is connected to the first
* link device, but it is actually connected to the second.
*/
static struct prt_quirk prt_quirks[] = {
- { medion_md9580, 0, 0, 9, 'A',
+ { medion_md9580, 0, 0, 9, PCI_INTX_PIN('A'),
"\\_SB_.PCI0.ISA_.LNKA",
"\\_SB_.PCI0.ISA_.LNKB"},
- { dell_optiplex, 0, 0, 0xd, 'A',
+ { dell_optiplex, 0, 0, 0xd, PCI_INTX_PIN('A'),
"\\_SB_.LNKB",
"\\_SB_.LNKA"},
- { hp_t5710, 0, 0, 1, 'A',
+ { hp_t5710, 0, 0, 1, PCI_INTX_PIN('A'),
"\\_SB_.PCI0.LNK1",
"\\_SB_.PCI0.LNK3"},
};
-static void
-do_prt_fixups(struct acpi_prt_entry *entry, struct acpi_pci_routing_table *prt)
+static void do_prt_fixups(struct acpi_prt_entry *entry,
+ struct acpi_pci_routing_table *prt)
{
int i;
struct prt_quirk *quirk;
entry->id.segment == quirk->segment &&
entry->id.bus == quirk->bus &&
entry->id.device == quirk->device &&
- entry->pin + 'A' == quirk->pin &&
+ entry->pin == quirk->pin &&
!strcmp(prt->source, quirk->source) &&
strlen(prt->source) >= strlen(quirk->actual_source)) {
printk(KERN_WARNING PREFIX "firmware reports "
"%04x:%02x:%02x PCI INT %c connected to %s; "
"changing to %s\n",
entry->id.segment, entry->id.bus,
- entry->id.device, 'A' + entry->pin,
+ entry->id.device, pin_name(entry->pin),
prt->source, quirk->actual_source);
strcpy(prt->source, quirk->actual_source);
}
}
}
-static int
-acpi_pci_irq_add_entry(acpi_handle handle,
- int segment, int bus, struct acpi_pci_routing_table *prt)
+static int acpi_pci_irq_add_entry(acpi_handle handle, int segment, int bus,
+ struct acpi_pci_routing_table *prt)
{
- struct acpi_prt_entry *entry = NULL;
-
-
- if (!prt)
- return -EINVAL;
+ struct acpi_prt_entry *entry;
entry = kzalloc(sizeof(struct acpi_prt_entry), GFP_KERNEL);
if (!entry)
return -ENOMEM;
+ /*
+ * Note that the _PRT uses 0=INTA, 1=INTB, etc, while PCI uses
+ * 1=INTA, 2=INTB. We use the PCI encoding throughout, so convert
+ * it here.
+ */
entry->id.segment = segment;
entry->id.bus = bus;
entry->id.device = (prt->address >> 16) & 0xFFFF;
- entry->id.function = prt->address & 0xFFFF;
- entry->pin = prt->pin;
+ entry->pin = prt->pin + 1;
do_prt_fixups(entry, prt);
+ entry->index = prt->source_index;
+
/*
* Type 1: Dynamic
* ---------------
* (e.g. exists somewhere 'below' this _PRT entry in the ACPI
* namespace).
*/
- if (prt->source[0]) {
- acpi_get_handle(handle, prt->source, &entry->link.handle);
- entry->link.index = prt->source_index;
- }
+ if (prt->source[0])
+ acpi_get_handle(handle, prt->source, &entry->link);
+
/*
* Type 2: Static
* --------------
* the IRQ value, which is hardwired to specific interrupt inputs on
* the interrupt controller.
*/
- else
- entry->link.index = prt->source_index;
ACPI_DEBUG_PRINT_RAW((ACPI_DB_INFO,
- " %02X:%02X:%02X[%c] -> %s[%d]\n",
+ " %04x:%02x:%02x[%c] -> %s[%d]\n",
entry->id.segment, entry->id.bus,
- entry->id.device, ('A' + entry->pin), prt->source,
- entry->link.index));
+ entry->id.device, pin_name(entry->pin),
+ prt->source, entry->index));
spin_lock(&acpi_prt_lock);
- list_add_tail(&entry->node, &acpi_prt.entries);
- acpi_prt.count++;
+ list_add_tail(&entry->list, &acpi_prt_list);
spin_unlock(&acpi_prt_lock);
return 0;
}
-static void
-acpi_pci_irq_del_entry(int segment, int bus, struct acpi_prt_entry *entry)
-{
- if (segment == entry->id.segment && bus == entry->id.bus) {
- acpi_prt.count--;
- list_del(&entry->node);
- kfree(entry);
- }
-}
-
int acpi_pci_irq_add_prt(acpi_handle handle, int segment, int bus)
{
- acpi_status status = AE_OK;
- char *pathname = NULL;
- struct acpi_buffer buffer = { 0, NULL };
- struct acpi_pci_routing_table *prt = NULL;
- struct acpi_pci_routing_table *entry = NULL;
- static int first_time = 1;
-
-
- pathname = kzalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
- if (!pathname)
- return -ENOMEM;
-
- if (first_time) {
- acpi_prt.count = 0;
- INIT_LIST_HEAD(&acpi_prt.entries);
- first_time = 0;
- }
-
- /*
- * NOTE: We're given a 'handle' to the _PRT object's parent device
- * (either a PCI root bridge or PCI-PCI bridge).
- */
+ acpi_status status;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ struct acpi_pci_routing_table *entry;
- buffer.length = ACPI_PATHNAME_MAX;
- buffer.pointer = pathname;
- acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
+ /* 'handle' is the _PRT's parent (root bridge or PCI-PCI bridge) */
+ status = acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
+ if (ACPI_FAILURE(status))
+ return -ENODEV;
printk(KERN_DEBUG "ACPI: PCI Interrupt Routing Table [%s._PRT]\n",
- pathname);
+ (char *) buffer.pointer);
- /*
- * Evaluate this _PRT and add its entries to our global list (acpi_prt).
- */
+ kfree(buffer.pointer);
- buffer.length = 0;
+ buffer.length = ACPI_ALLOCATE_BUFFER;
buffer.pointer = NULL;
- kfree(pathname);
- status = acpi_get_irq_routing_table(handle, &buffer);
- if (status != AE_BUFFER_OVERFLOW) {
- ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRT [%s]",
- acpi_format_exception(status)));
- return -ENODEV;
- }
-
- prt = kzalloc(buffer.length, GFP_KERNEL);
- if (!prt) {
- return -ENOMEM;
- }
- buffer.pointer = prt;
status = acpi_get_irq_routing_table(handle, &buffer);
if (ACPI_FAILURE(status)) {
return -ENODEV;
}
- entry = prt;
-
+ entry = buffer.pointer;
while (entry && (entry->length > 0)) {
acpi_pci_irq_add_entry(handle, segment, bus, entry);
entry = (struct acpi_pci_routing_table *)
((unsigned long)entry + entry->length);
}
- kfree(prt);
-
+ kfree(buffer.pointer);
return 0;
}
void acpi_pci_irq_del_prt(int segment, int bus)
{
- struct list_head *node = NULL, *n = NULL;
- struct acpi_prt_entry *entry = NULL;
-
- if (!acpi_prt.count) {
- return;
- }
+ struct acpi_prt_entry *entry, *tmp;
printk(KERN_DEBUG
- "ACPI: Delete PCI Interrupt Routing Table for %x:%x\n", segment,
- bus);
+ "ACPI: Delete PCI Interrupt Routing Table for %04x:%02x\n",
+ segment, bus);
spin_lock(&acpi_prt_lock);
- list_for_each_safe(node, n, &acpi_prt.entries) {
- entry = list_entry(node, struct acpi_prt_entry, node);
-
- acpi_pci_irq_del_entry(segment, bus, entry);
+ list_for_each_entry_safe(entry, tmp, &acpi_prt_list, list) {
+ if (segment == entry->id.segment && bus == entry->id.bus) {
+ list_del(&entry->list);
+ kfree(entry);
+ }
}
spin_unlock(&acpi_prt_lock);
}
/* --------------------------------------------------------------------------
PCI Interrupt Routing Support
-------------------------------------------------------------------------- */
-typedef int (*irq_lookup_func) (struct acpi_prt_entry *, int *, int *, char **);
-
-static int
-acpi_pci_allocate_irq(struct acpi_prt_entry *entry,
- int *triggering, int *polarity, char **link)
-{
- int irq;
-
-
- if (entry->link.handle) {
- irq = acpi_pci_link_allocate_irq(entry->link.handle,
- entry->link.index, triggering,
- polarity, link);
- if (irq < 0) {
- printk(KERN_WARNING PREFIX
- "Invalid IRQ link routing entry\n");
- return -1;
- }
- } else {
- irq = entry->link.index;
- *triggering = ACPI_LEVEL_SENSITIVE;
- *polarity = ACPI_ACTIVE_LOW;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found IRQ %d\n", irq));
- return irq;
-}
-
-static int
-acpi_pci_free_irq(struct acpi_prt_entry *entry,
- int *triggering, int *polarity, char **link)
-{
- int irq;
-
- if (entry->link.handle) {
- irq = acpi_pci_link_free_irq(entry->link.handle);
- } else {
- irq = entry->link.index;
- }
- return irq;
-}
-
-#ifdef CONFIG_X86_IO_APIC
-extern int noioapicquirk;
-
-static int bridge_has_boot_interrupt_variant(struct pci_bus *bus)
+static struct acpi_prt_entry *acpi_pci_irq_lookup(struct pci_dev *dev, int pin)
{
- struct pci_bus *bus_it;
-
- for (bus_it = bus ; bus_it ; bus_it = bus_it->parent) {
- if (!bus_it->self)
- return 0;
-
- printk(KERN_INFO "vendor=%04x device=%04x\n", bus_it->self->vendor,
- bus_it->self->device);
-
- if (bus_it->self->irq_reroute_variant)
- return bus_it->self->irq_reroute_variant;
- }
- return 0;
-}
-#endif /* CONFIG_X86_IO_APIC */
-
-/*
- * acpi_pci_irq_lookup
- * success: return IRQ >= 0
- * failure: return -1
- */
-static int
-acpi_pci_irq_lookup(struct pci_bus *bus,
- int device,
- int pin,
- int *triggering,
- int *polarity, char **link, irq_lookup_func func)
-{
- struct acpi_prt_entry *entry = NULL;
- int segment = pci_domain_nr(bus);
- int bus_nr = bus->number;
- int ret;
-
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Searching for PRT entry for %02x:%02x:%02x[%c]\n",
- segment, bus_nr, device, ('A' + pin)));
-
- entry = acpi_pci_irq_find_prt_entry(segment, bus_nr, device, pin);
- if (!entry) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "PRT entry not found\n"));
- return -1;
- }
-
- ret = func(entry, triggering, polarity, link);
-
-#ifdef CONFIG_X86_IO_APIC
- /*
- * Some chipsets (e.g. intel 6700PXH) generate a legacy INTx when the
- * IRQ entry in the chipset's IO-APIC is masked (as, e.g. the RT kernel
- * does during interrupt handling). When this INTx generation cannot be
- * disabled, we reroute these interrupts to their legacy equivalent to
- * get rid of spurious interrupts.
- */
- if (!noioapicquirk) {
- switch (bridge_has_boot_interrupt_variant(bus)) {
- case 0:
- /* no rerouting necessary */
- break;
-
- case INTEL_IRQ_REROUTE_VARIANT:
- /*
- * Remap according to INTx routing table in 6700PXH
- * specs, intel order number 302628-002, section
- * 2.15.2. Other chipsets (80332, ...) have the same
- * mapping and are handled here as well.
- */
- printk(KERN_INFO "pci irq %d -> rerouted to legacy "
- "irq %d\n", ret, (ret % 4) + 16);
- ret = (ret % 4) + 16;
- break;
-
- default:
- printk(KERN_INFO "not rerouting irq %d to legacy irq: "
- "unknown mapping\n", ret);
- break;
- }
+ struct acpi_prt_entry *entry;
+ struct pci_dev *bridge;
+ u8 bridge_pin, orig_pin = pin;
+
+ entry = acpi_pci_irq_find_prt_entry(dev, pin);
+ if (entry) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found %s[%c] _PRT entry\n",
+ pci_name(dev), pin_name(pin)));
+ return entry;
}
-#endif /* CONFIG_X86_IO_APIC */
-
- return ret;
-}
-
-/*
- * acpi_pci_irq_derive
- * success: return IRQ >= 0
- * failure: return < 0
- */
-static int
-acpi_pci_irq_derive(struct pci_dev *dev,
- int pin,
- int *triggering,
- int *polarity, char **link, irq_lookup_func func)
-{
- struct pci_dev *bridge = dev;
- int irq = -1;
- u8 bridge_pin = 0, orig_pin = pin;
-
-
- if (!dev)
- return -EINVAL;
/*
* Attempt to derive an IRQ for this device from a parent bridge's
* PCI interrupt routing entry (eg. yenta bridge and add-in card bridge).
*/
- while (irq < 0 && bridge->bus->self) {
- pin = (pin + PCI_SLOT(bridge->devfn)) % 4;
- bridge = bridge->bus->self;
+ bridge = dev->bus->self;
+ while (bridge) {
+ pin = (((pin - 1) + PCI_SLOT(dev->devfn)) % 4) + 1;
if ((bridge->class >> 8) == PCI_CLASS_BRIDGE_CARDBUS) {
/* PC card has the same IRQ as its cardbridge */
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"No interrupt pin configured for device %s\n",
pci_name(bridge)));
- return -1;
+ return NULL;
}
- /* Pin is from 0 to 3 */
- bridge_pin--;
pin = bridge_pin;
}
- irq = acpi_pci_irq_lookup(bridge->bus, PCI_SLOT(bridge->devfn),
- pin, triggering, polarity,
- link, func);
- }
+ entry = acpi_pci_irq_find_prt_entry(bridge, pin);
+ if (entry) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Derived GSI for %s INT %c from %s\n",
+ pci_name(dev), pin_name(orig_pin),
+ pci_name(bridge)));
+ return entry;
+ }
- if (irq < 0) {
- dev_warn(&dev->dev, "can't derive routing for PCI INT %c\n",
- 'A' + orig_pin);
- return -1;
+ dev = bridge;
+ bridge = dev->bus->self;
}
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Derive IRQ %d for device %s from %s\n",
- irq, pci_name(dev), pci_name(bridge)));
-
- return irq;
+ dev_warn(&dev->dev, "can't derive routing for PCI INT %c\n",
+ pin_name(orig_pin));
+ return NULL;
}
-/*
- * acpi_pci_irq_enable
- * success: return 0
- * failure: return < 0
- */
-
int acpi_pci_irq_enable(struct pci_dev *dev)
{
- int irq = 0;
- u8 pin = 0;
+ struct acpi_prt_entry *entry;
+ int gsi;
+ u8 pin;
int triggering = ACPI_LEVEL_SENSITIVE;
int polarity = ACPI_ACTIVE_LOW;
char *link = NULL;
char link_desc[16];
int rc;
-
- if (!dev)
- return -EINVAL;
-
pin = dev->pin;
if (!pin) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
pci_name(dev)));
return 0;
}
- pin--;
-
- if (!dev->bus) {
- dev_err(&dev->dev, "invalid (NULL) 'bus' field\n");
- return -ENODEV;
- }
-
- /*
- * First we check the PCI IRQ routing table (PRT) for an IRQ. PRT
- * values override any BIOS-assigned IRQs set during boot.
- */
- irq = acpi_pci_irq_lookup(dev->bus, PCI_SLOT(dev->devfn), pin,
- &triggering, &polarity, &link,
- acpi_pci_allocate_irq);
-
- /*
- * If no PRT entry was found, we'll try to derive an IRQ from the
- * device's parent bridge.
- */
- if (irq < 0)
- irq = acpi_pci_irq_derive(dev, pin, &triggering,
- &polarity, &link,
- acpi_pci_allocate_irq);
- if (irq < 0) {
+ entry = acpi_pci_irq_lookup(dev, pin);
+ if (!entry) {
/*
* IDE legacy mode controller IRQs are magic. Why do compat
* extensions always make such a nasty mess.
(dev->class & 0x05) == 0)
return 0;
}
+
+ if (entry) {
+ if (entry->link)
+ gsi = acpi_pci_link_allocate_irq(entry->link,
+ entry->index,
+ &triggering, &polarity,
+ &link);
+ else
+ gsi = entry->index;
+ } else
+ gsi = -1;
+
/*
* No IRQ known to the ACPI subsystem - maybe the BIOS /
* driver reported one, then use it. Exit in any case.
*/
- if (irq < 0) {
- dev_warn(&dev->dev, "PCI INT %c: no GSI", 'A' + pin);
+ if (gsi < 0) {
+ dev_warn(&dev->dev, "PCI INT %c: no GSI", pin_name(pin));
/* Interrupt Line values above 0xF are forbidden */
if (dev->irq > 0 && (dev->irq <= 0xF)) {
printk(" - using IRQ %d\n", dev->irq);
}
}
- rc = acpi_register_gsi(irq, triggering, polarity);
+ rc = acpi_register_gsi(gsi, triggering, polarity);
if (rc < 0) {
dev_warn(&dev->dev, "PCI INT %c: failed to register GSI\n",
- 'A' + pin);
+ pin_name(pin));
return rc;
}
dev->irq = rc;
link_desc[0] = '\0';
dev_info(&dev->dev, "PCI INT %c%s -> GSI %u (%s, %s) -> IRQ %d\n",
- 'A' + pin, link_desc, irq,
+ pin_name(pin), link_desc, gsi,
(triggering == ACPI_LEVEL_SENSITIVE) ? "level" : "edge",
(polarity == ACPI_ACTIVE_LOW) ? "low" : "high", dev->irq);
void acpi_pci_irq_disable(struct pci_dev *dev)
{
- int gsi = 0;
- u8 pin = 0;
- int triggering = ACPI_LEVEL_SENSITIVE;
- int polarity = ACPI_ACTIVE_LOW;
-
-
- if (!dev || !dev->bus)
- return;
+ struct acpi_prt_entry *entry;
+ int gsi;
+ u8 pin;
pin = dev->pin;
if (!pin)
return;
- pin--;
- /*
- * First we check the PCI IRQ routing table (PRT) for an IRQ.
- */
- gsi = acpi_pci_irq_lookup(dev->bus, PCI_SLOT(dev->devfn), pin,
- &triggering, &polarity, NULL,
- acpi_pci_free_irq);
- /*
- * If no PRT entry was found, we'll try to derive an IRQ from the
- * device's parent bridge.
- */
- if (gsi < 0)
- gsi = acpi_pci_irq_derive(dev, pin,
- &triggering, &polarity, NULL,
- acpi_pci_free_irq);
- if (gsi < 0)
+ entry = acpi_pci_irq_lookup(dev, pin);
+ if (!entry)
return;
+ if (entry->link)
+ gsi = acpi_pci_link_free_irq(entry->link);
+ else
+ gsi = entry->index;
+
/*
* TBD: It might be worth clearing dev->irq by magic constant
* (e.g. PCI_UNDEFINED_IRQ).
*/
- dev_info(&dev->dev, "PCI INT %c disabled\n", 'A' + pin);
+ dev_info(&dev->dev, "PCI INT %c disabled\n", pin_name(pin));
acpi_unregister_gsi(gsi);
}
struct list_head *node = NULL;
struct acpi_pci_link *link = NULL;
-
- /* Make sure SCI is enabled again (Apple firmware bug?) */
- acpi_set_register(ACPI_BITREG_SCI_ENABLE, 1);
-
list_for_each(node, &acpi_link.entries) {
link = list_entry(node, struct acpi_pci_link, node);
if (!link) {
__setup("acpi_irq_nobalance", acpi_irq_nobalance_set);
-int __init acpi_irq_balance_set(char *str)
+static int __init acpi_irq_balance_set(char *str)
{
acpi_irq_balance = 1;
return 1;
{
acpi_status status = AE_OK;
unsigned long long sta = 0;
+ char node_name[5];
+ struct acpi_buffer buffer = { sizeof(node_name), node_name };
if (!handle || !state)
*state = (sta & 0x01)?ACPI_POWER_RESOURCE_STATE_ON:
ACPI_POWER_RESOURCE_STATE_OFF;
+ acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer);
+
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] is %s\n",
- acpi_ut_get_node_name(handle),
+ node_name,
*state ? "on" : "off"));
return 0;
{
int i;
- ACPI_FUNCTION_TRACE("acpi_system_sleep_seq_show");
-
for (i = 0; i <= ACPI_STATE_S5; i++) {
if (sleep_states[i]) {
seq_printf(seq, "S%d ", i);
#ifdef HAVE_ACPI_LEGACY_ALARM
+static u32 cmos_bcd_read(int offset, int rtc_control);
+
static int acpi_system_alarm_seq_show(struct seq_file *seq, void *offset)
{
u32 sec, min, hr;
u32 day, mo, yr, cent = 0;
+ u32 today = 0;
unsigned char rtc_control = 0;
unsigned long flags;
- ACPI_FUNCTION_TRACE("acpi_system_alarm_seq_show");
-
spin_lock_irqsave(&rtc_lock, flags);
- sec = CMOS_READ(RTC_SECONDS_ALARM);
- min = CMOS_READ(RTC_MINUTES_ALARM);
- hr = CMOS_READ(RTC_HOURS_ALARM);
rtc_control = CMOS_READ(RTC_CONTROL);
+ sec = cmos_bcd_read(RTC_SECONDS_ALARM, rtc_control);
+ min = cmos_bcd_read(RTC_MINUTES_ALARM, rtc_control);
+ hr = cmos_bcd_read(RTC_HOURS_ALARM, rtc_control);
/* If we ever get an FACP with proper values... */
- if (acpi_gbl_FADT.day_alarm)
+ if (acpi_gbl_FADT.day_alarm) {
/* ACPI spec: only low 6 its should be cared */
day = CMOS_READ(acpi_gbl_FADT.day_alarm) & 0x3F;
- else
- day = CMOS_READ(RTC_DAY_OF_MONTH);
+ if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
+ day = bcd2bin(day);
+ } else
+ day = cmos_bcd_read(RTC_DAY_OF_MONTH, rtc_control);
if (acpi_gbl_FADT.month_alarm)
- mo = CMOS_READ(acpi_gbl_FADT.month_alarm);
- else
- mo = CMOS_READ(RTC_MONTH);
+ mo = cmos_bcd_read(acpi_gbl_FADT.month_alarm, rtc_control);
+ else {
+ mo = cmos_bcd_read(RTC_MONTH, rtc_control);
+ today = cmos_bcd_read(RTC_DAY_OF_MONTH, rtc_control);
+ }
if (acpi_gbl_FADT.century)
- cent = CMOS_READ(acpi_gbl_FADT.century);
+ cent = cmos_bcd_read(acpi_gbl_FADT.century, rtc_control);
- yr = CMOS_READ(RTC_YEAR);
+ yr = cmos_bcd_read(RTC_YEAR, rtc_control);
spin_unlock_irqrestore(&rtc_lock, flags);
- if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
- sec = bcd2bin(sec);
- min = bcd2bin(min);
- hr = bcd2bin(hr);
- day = bcd2bin(day);
- mo = bcd2bin(mo);
- yr = bcd2bin(yr);
- cent = bcd2bin(cent);
- }
-
/* we're trusting the FADT (see above) */
if (!acpi_gbl_FADT.century)
/* If we're not trusting the FADT, we should at least make it
else
yr += cent * 100;
+ /*
+ * Show correct dates for alarms up to a month into the future.
+ * This solves issues for nearly all situations with the common
+ * 30-day alarm clocks in PC hardware.
+ */
+ if (day < today) {
+ if (mo < 12) {
+ mo += 1;
+ } else {
+ mo = 1;
+ yr += 1;
+ }
+ }
+
seq_printf(seq, "%4.4u-", yr);
(mo > 12) ? seq_puts(seq, "**-") : seq_printf(seq, "%2.2u-", mo);
(day > 31) ? seq_puts(seq, "** ") : seq_printf(seq, "%2.2u ", day);
int adjust = 0;
unsigned char rtc_control = 0;
- ACPI_FUNCTION_TRACE("acpi_system_write_alarm");
-
if (count > sizeof(alarm_string) - 1)
- return_VALUE(-EINVAL);
+ return -EINVAL;
if (copy_from_user(alarm_string, buffer, count))
- return_VALUE(-EFAULT);
+ return -EFAULT;
alarm_string[count] = '\0';
result = 0;
end:
- return_VALUE(result ? result : count);
+ return result ? result : count;
}
#endif /* HAVE_ACPI_LEGACY_ALARM */
case ACPI_ADR_SPACE_SYSTEM_MEMORY:
case ACPI_ADR_SPACE_SYSTEM_IO:
printk(KERN_DEBUG "ACPI MEMORY or I/O RESET_REG.\n");
- acpi_hw_low_level_write(8, reset_value, rr);
+ acpi_reset();
break;
}
/* Wait ten seconds */
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := rsaddr.o rscreate.o rsinfo.o rsio.o rslist.o rsmisc.o rsxface.o \
- rscalc.o rsirq.o rsmemory.o rsutils.o
-
-obj-$(ACPI_FUTURE_USAGE) += rsdump.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
-#include <acpi/actypes.h>
#include <linux/wait.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/kthread.h>
#include <acpi/acpi_drivers.h>
-#include <acpi/acinterp.h> /* for acpi_ex_eisa_id_to_string() */
#define _COMPONENT ACPI_BUS_COMPONENT
ACPI_MODULE_NAME("scan");
+++ /dev/null
-obj-y := wakeup.o
-obj-y += main.o
-obj-$(CONFIG_ACPI_SLEEP) += proc.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
};
static struct kobj_attribute *counter_attrs;
-static int count_num_gpes(void)
-{
- int count = 0;
- struct acpi_gpe_xrupt_info *gpe_xrupt_info;
- struct acpi_gpe_block_info *gpe_block;
- acpi_cpu_flags flags;
-
- flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
-
- gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head;
- while (gpe_xrupt_info) {
- gpe_block = gpe_xrupt_info->gpe_block_list_head;
- while (gpe_block) {
- count += gpe_block->register_count *
- ACPI_GPE_REGISTER_WIDTH;
- gpe_block = gpe_block->next;
- }
- gpe_xrupt_info = gpe_xrupt_info->next;
- }
- acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
-
- return count;
-}
-
-static int get_gpe_device(int index, acpi_handle *handle)
-{
- struct acpi_gpe_xrupt_info *gpe_xrupt_info;
- struct acpi_gpe_block_info *gpe_block;
- acpi_cpu_flags flags;
- struct acpi_namespace_node *node;
-
- flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
-
- gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head;
- while (gpe_xrupt_info) {
- gpe_block = gpe_xrupt_info->gpe_block_list_head;
- node = gpe_block->node;
- while (gpe_block) {
- index -= gpe_block->register_count *
- ACPI_GPE_REGISTER_WIDTH;
- if (index < 0) {
- acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
- /* return NULL if it's FADT GPE */
- if (node->type != ACPI_TYPE_DEVICE)
- *handle = NULL;
- else
- *handle = node;
- return 0;
- }
- node = gpe_block->node;
- gpe_block = gpe_block->next;
- }
- gpe_xrupt_info = gpe_xrupt_info->next;
- }
- acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
-
- return -ENODEV;
-}
-
static void delete_gpe_attr_array(void)
{
struct event_counter *tmp = all_counters;
goto end;
if (index < num_gpes) {
- result = get_gpe_device(index, handle);
+ result = acpi_get_gpe_device(index, handle);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_NOT_FOUND,
"Invalid GPE 0x%x\n", index));
if (all_counters)
return;
- num_gpes = count_num_gpes();
+ num_gpes = acpi_current_gpe_count;
num_counters = num_gpes + ACPI_NUM_FIXED_EVENTS + NUM_COUNTERS_EXTRA;
all_attrs = kzalloc(sizeof(struct attribute *) * (num_counters + 1),
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \
- utcopy.o utdelete.o utglobal.o utmath.o utobject.o \
- utstate.o utmutex.o utobject.o utcache.o utresrc.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: utcache - local cache allocation routines
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-
-#define _COMPONENT ACPI_UTILITIES
-ACPI_MODULE_NAME("utcache")
-#ifdef ACPI_USE_LOCAL_CACHE
-/*******************************************************************************
- *
- * FUNCTION: acpi_os_create_cache
- *
- * PARAMETERS: cache_name - Ascii name for the cache
- * object_size - Size of each cached object
- * max_depth - Maximum depth of the cache (in objects)
- * return_cache - Where the new cache object is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a cache object
- *
- ******************************************************************************/
-acpi_status
-acpi_os_create_cache(char *cache_name,
- u16 object_size,
- u16 max_depth, struct acpi_memory_list ** return_cache)
-{
- struct acpi_memory_list *cache;
-
- ACPI_FUNCTION_ENTRY();
-
- if (!cache_name || !return_cache || (object_size < 16)) {
- return (AE_BAD_PARAMETER);
- }
-
- /* Create the cache object */
-
- cache = acpi_os_allocate(sizeof(struct acpi_memory_list));
- if (!cache) {
- return (AE_NO_MEMORY);
- }
-
- /* Populate the cache object and return it */
-
- ACPI_MEMSET(cache, 0, sizeof(struct acpi_memory_list));
- cache->link_offset = 8;
- cache->list_name = cache_name;
- cache->object_size = object_size;
- cache->max_depth = max_depth;
-
- *return_cache = cache;
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_os_purge_cache
- *
- * PARAMETERS: Cache - Handle to cache object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Free all objects within the requested cache.
- *
- ******************************************************************************/
-
-acpi_status acpi_os_purge_cache(struct acpi_memory_list * cache)
-{
- char *next;
-
- ACPI_FUNCTION_ENTRY();
-
- if (!cache) {
- return (AE_BAD_PARAMETER);
- }
-
- /* Walk the list of objects in this cache */
-
- while (cache->list_head) {
-
- /* Delete and unlink one cached state object */
-
- next = *(ACPI_CAST_INDIRECT_PTR(char,
- &(((char *)cache->
- list_head)[cache->
- link_offset])));
- ACPI_FREE(cache->list_head);
-
- cache->list_head = next;
- cache->current_depth--;
- }
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_os_delete_cache
- *
- * PARAMETERS: Cache - Handle to cache object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Free all objects within the requested cache and delete the
- * cache object.
- *
- ******************************************************************************/
-
-acpi_status acpi_os_delete_cache(struct acpi_memory_list * cache)
-{
- acpi_status status;
-
- ACPI_FUNCTION_ENTRY();
-
- /* Purge all objects in the cache */
-
- status = acpi_os_purge_cache(cache);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /* Now we can delete the cache object */
-
- ACPI_FREE(cache);
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_os_release_object
- *
- * PARAMETERS: Cache - Handle to cache object
- * Object - The object to be released
- *
- * RETURN: None
- *
- * DESCRIPTION: Release an object to the specified cache. If cache is full,
- * the object is deleted.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_os_release_object(struct acpi_memory_list * cache, void *object)
-{
- acpi_status status;
-
- ACPI_FUNCTION_ENTRY();
-
- if (!cache || !object) {
- return (AE_BAD_PARAMETER);
- }
-
- /* If cache is full, just free this object */
-
- if (cache->current_depth >= cache->max_depth) {
- ACPI_FREE(object);
- ACPI_MEM_TRACKING(cache->total_freed++);
- }
-
- /* Otherwise put this object back into the cache */
-
- else {
- status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /* Mark the object as cached */
-
- ACPI_MEMSET(object, 0xCA, cache->object_size);
- ACPI_SET_DESCRIPTOR_TYPE(object, ACPI_DESC_TYPE_CACHED);
-
- /* Put the object at the head of the cache list */
-
- *(ACPI_CAST_INDIRECT_PTR(char,
- &(((char *)object)[cache->
- link_offset]))) =
- cache->list_head;
- cache->list_head = object;
- cache->current_depth++;
-
- (void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
- }
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_os_acquire_object
- *
- * PARAMETERS: Cache - Handle to cache object
- *
- * RETURN: the acquired object. NULL on error
- *
- * DESCRIPTION: Get an object from the specified cache. If cache is empty,
- * the object is allocated.
- *
- ******************************************************************************/
-
-void *acpi_os_acquire_object(struct acpi_memory_list *cache)
-{
- acpi_status status;
- void *object;
-
- ACPI_FUNCTION_NAME(os_acquire_object);
-
- if (!cache) {
- return (NULL);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
- if (ACPI_FAILURE(status)) {
- return (NULL);
- }
-
- ACPI_MEM_TRACKING(cache->requests++);
-
- /* Check the cache first */
-
- if (cache->list_head) {
-
- /* There is an object available, use it */
-
- object = cache->list_head;
- cache->list_head = *(ACPI_CAST_INDIRECT_PTR(char,
- &(((char *)
- object)[cache->
- link_offset])));
-
- cache->current_depth--;
-
- ACPI_MEM_TRACKING(cache->hits++);
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Object %p from %s cache\n", object,
- cache->list_name));
-
- status = acpi_ut_release_mutex(ACPI_MTX_CACHES);
- if (ACPI_FAILURE(status)) {
- return (NULL);
- }
-
- /* Clear (zero) the previously used Object */
-
- ACPI_MEMSET(object, 0, cache->object_size);
- } else {
- /* The cache is empty, create a new object */
-
- ACPI_MEM_TRACKING(cache->total_allocated++);
-
-#ifdef ACPI_DBG_TRACK_ALLOCATIONS
- if ((cache->total_allocated - cache->total_freed) >
- cache->max_occupied) {
- cache->max_occupied =
- cache->total_allocated - cache->total_freed;
- }
-#endif
-
- /* Avoid deadlock with ACPI_ALLOCATE_ZEROED */
-
- status = acpi_ut_release_mutex(ACPI_MTX_CACHES);
- if (ACPI_FAILURE(status)) {
- return (NULL);
- }
-
- object = ACPI_ALLOCATE_ZEROED(cache->object_size);
- if (!object) {
- return (NULL);
- }
- }
-
- return (object);
-}
-#endif /* ACPI_USE_LOCAL_CACHE */
#include <linux/backlight.h>
#include <linux/thermal.h>
#include <linux/video_output.h>
+#include <linux/sort.h>
#include <asm/uaccess.h>
#include <acpi/acpi_bus.h>
int status = AE_OK;
union acpi_object arg0 = { ACPI_TYPE_INTEGER };
struct acpi_object_list args = { 1, &arg0 };
+ int state;
arg0.integer.value = level;
status = acpi_evaluate_object(device->dev->handle, "_BCM",
&args, NULL);
device->brightness->curr = level;
+ for (state = 2; state < device->brightness->count; state++)
+ if (level == device->brightness->levels[state])
+ device->backlight->props.brightness = state - 2;
+
return status;
}
return status;
}
+/*
+ * Simple comparison function used to sort backlight levels.
+ */
+
+static int
+acpi_video_cmp_level(const void *a, const void *b)
+{
+ return *(int *)a - *(int *)b;
+}
+
/*
* Arg:
* device : video output device (LCD, CRT, ..)
count++;
}
+ /* don't sort the first two brightness levels */
+ sort(&br->levels[2], count - 2, sizeof(br->levels[2]),
+ acpi_video_cmp_level, NULL);
+
if (count < 2)
goto out_free_levels;
* To force that backlight or display output switching is processed by vendor
* specific acpi drivers or video.ko driver.
*/
-int __init acpi_backlight(char *str)
+static int __init acpi_backlight(char *str)
{
if (str == NULL || *str == '\0')
return 1;
}
__setup("acpi_backlight=", acpi_backlight);
-int __init acpi_display_output(char *str)
+static int __init acpi_display_output(char *str)
{
if (str == NULL || *str == '\0')
return 1;
#include <acpi/acpi_drivers.h>
#include <linux/kernel.h>
#include <linux/types.h>
-#include <acpi/acevents.h>
#include "sleep.h"
#define _COMPONENT ACPI_SYSTEM_COMPONENT
{
struct list_head *node, *next;
- ACPI_FUNCTION_TRACE("acpi_enable_wakeup_device_prep");
-
spin_lock(&acpi_device_lock);
list_for_each_safe(node, next, &acpi_wakeup_device_list) {
struct acpi_device *dev = container_of(node,
* Caution: this routine must be invoked when interrupt is disabled
* Refer ACPI2.0: P212
*/
- ACPI_FUNCTION_TRACE("acpi_enable_wakeup_device");
spin_lock(&acpi_device_lock);
list_for_each_safe(node, next, &acpi_wakeup_device_list) {
struct acpi_device *dev =
{
struct list_head *node, *next;
- ACPI_FUNCTION_TRACE("acpi_disable_wakeup_device");
-
spin_lock(&acpi_device_lock);
list_for_each_safe(node, next, &acpi_wakeup_device_list) {
struct acpi_device *dev =
#include "libata.h"
#include <acpi/acpi_bus.h>
-#include <acpi/acnames.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acparser.h>
-#include <acpi/acexcep.h>
-#include <acpi/acmacros.h>
-#include <acpi/actypes.h>
enum {
ATA_ACPI_FILTER_SETXFER = 1 << 0,
struct scatterlist *sg = qc->sg;
int dir = qc->dma_dir;
- WARN_ON(sg == NULL);
+ WARN_ON_ONCE(sg == NULL);
VPRINTK("unmapping %u sg elements\n", qc->n_elem);
struct ata_port *ap = qc->ap;
unsigned int tag;
- WARN_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
+ WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
qc->flags = 0;
tag = qc->tag;
struct ata_port *ap = qc->ap;
struct ata_link *link = qc->dev->link;
- WARN_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
- WARN_ON(!(qc->flags & ATA_QCFLAG_ACTIVE));
+ WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
+ WARN_ON_ONCE(!(qc->flags & ATA_QCFLAG_ACTIVE));
if (likely(qc->flags & ATA_QCFLAG_DMAMAP))
ata_sg_clean(qc);
struct ata_device *dev = qc->dev;
struct ata_eh_info *ehi = &dev->link->eh_info;
- WARN_ON(ap->pflags & ATA_PFLAG_FROZEN);
+ WARN_ON_ONCE(ap->pflags & ATA_PFLAG_FROZEN);
if (unlikely(qc->err_mask))
qc->flags |= ATA_QCFLAG_FAILED;
* check is skipped for old EH because it reuses active qc to
* request ATAPI sense.
*/
- WARN_ON(ap->ops->error_handler && ata_tag_valid(link->active_tag));
+ WARN_ON_ONCE(ap->ops->error_handler && ata_tag_valid(link->active_tag));
if (ata_is_ncq(prot)) {
- WARN_ON(link->sactive & (1 << qc->tag));
+ WARN_ON_ONCE(link->sactive & (1 << qc->tag));
if (!link->sactive)
ap->nr_active_links++;
link->sactive |= 1 << qc->tag;
} else {
- WARN_ON(link->sactive);
+ WARN_ON_ONCE(link->sactive);
ap->nr_active_links++;
link->active_tag = qc->tag;
}
if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
- WARN_ON(!ioaddr->ctl_addr);
+ WARN_ON_ONCE(!ioaddr->ctl_addr);
iowrite8(tf->hob_feature, ioaddr->feature_addr);
iowrite8(tf->hob_nsect, ioaddr->nsect_addr);
iowrite8(tf->hob_lbal, ioaddr->lbal_addr);
iowrite8(tf->ctl, ioaddr->ctl_addr);
ap->last_ctl = tf->ctl;
} else
- WARN_ON(1);
+ WARN_ON_ONCE(1);
}
}
EXPORT_SYMBOL_GPL(ata_sff_tf_read);
/* READ/WRITE MULTIPLE */
unsigned int nsect;
- WARN_ON(qc->dev->multi_count == 0);
+ WARN_ON_ONCE(qc->dev->multi_count == 0);
nsect = min((qc->nbytes - qc->curbytes) / qc->sect_size,
qc->dev->multi_count);
{
/* send SCSI cdb */
DPRINTK("send cdb\n");
- WARN_ON(qc->dev->cdb_len < 12);
+ WARN_ON_ONCE(qc->dev->cdb_len < 12);
ap->ops->sff_data_xfer(qc->dev, qc->cdb, qc->dev->cdb_len, 1);
ata_sff_sync(ap);
}
/* consumed can be larger than count only for the last transfer */
- WARN_ON(qc->cursg && count != consumed);
+ WARN_ON_ONCE(qc->cursg && count != consumed);
if (bytes)
goto next_sg;
unsigned long flags = 0;
int poll_next;
- WARN_ON((qc->flags & ATA_QCFLAG_ACTIVE) == 0);
+ WARN_ON_ONCE((qc->flags & ATA_QCFLAG_ACTIVE) == 0);
/* Make sure ata_sff_qc_issue() does not throw things
* like DMA polling into the workqueue. Notice that
* in_wq is not equivalent to (qc->tf.flags & ATA_TFLAG_POLLING).
*/
- WARN_ON(in_wq != ata_hsm_ok_in_wq(ap, qc));
+ WARN_ON_ONCE(in_wq != ata_hsm_ok_in_wq(ap, qc));
fsm_start:
DPRINTK("ata%u: protocol %d task_state %d (dev_stat 0x%X)\n",
DPRINTK("ata%u: dev %u command complete, drv_stat 0x%x\n",
ap->print_id, qc->dev->devno, status);
- WARN_ON(qc->err_mask & (AC_ERR_DEV | AC_ERR_HSM));
+ WARN_ON_ONCE(qc->err_mask & (AC_ERR_DEV | AC_ERR_HSM));
ap->hsm_task_state = HSM_ST_IDLE;
int poll_next;
fsm_start:
- WARN_ON(ap->hsm_task_state == HSM_ST_IDLE);
+ WARN_ON_ONCE(ap->hsm_task_state == HSM_ST_IDLE);
/*
* This is purely heuristic. This is a fast path.
break;
case ATA_PROT_DMA:
- WARN_ON(qc->tf.flags & ATA_TFLAG_POLLING);
+ WARN_ON_ONCE(qc->tf.flags & ATA_TFLAG_POLLING);
ap->ops->sff_tf_load(ap, &qc->tf); /* load tf registers */
ap->ops->bmdma_setup(qc); /* set up bmdma */
break;
case ATAPI_PROT_DMA:
- WARN_ON(qc->tf.flags & ATA_TFLAG_POLLING);
+ WARN_ON_ONCE(qc->tf.flags & ATA_TFLAG_POLLING);
ap->ops->sff_tf_load(ap, &qc->tf); /* load tf registers */
ap->ops->bmdma_setup(qc); /* set up bmdma */
break;
default:
- WARN_ON(1);
+ WARN_ON_ONCE(1);
return AC_ERR_SYSTEM;
}
#include <linux/device.h>
#include <scsi/scsi_host.h>
#include <acpi/acpi_bus.h>
-#include <acpi/acnames.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acparser.h>
-#include <acpi/acexcep.h>
-#include <acpi/acmacros.h>
-#include <acpi/actypes.h>
#include <linux/libata.h>
#include <linux/ata.h>
#include <linux/security.h>
#include <linux/module.h>
#include <acpi/acpi.h>
-#include <acpi/actypes.h>
-#include <acpi/actbl.h>
#include "tpm.h"
#define TCG_EVENT_NAME_LEN_MAX 255
#include <linux/tick.h>
#define BREAK_FUZZ 4 /* 4 us */
+#define PRED_HISTORY_PCT 50
struct menu_device {
int last_state_idx;
unsigned int expected_us;
unsigned int predicted_us;
+ unsigned int current_predicted_us;
unsigned int last_measured_us;
unsigned int elapsed_us;
};
data->expected_us =
(u32) ktime_to_ns(tick_nohz_get_sleep_length()) / 1000;
+ /* Recalculate predicted_us based on prediction_history_pct */
+ data->predicted_us *= PRED_HISTORY_PCT;
+ data->predicted_us += (100 - PRED_HISTORY_PCT) *
+ data->current_predicted_us;
+ data->predicted_us /= 100;
+
/* find the deepest idle state that satisfies our constraints */
for (i = CPUIDLE_DRIVER_STATE_START + 1; i < dev->state_count; i++) {
struct cpuidle_state *s = &dev->states[i];
measured_us = -1;
/* Predict time until next break event */
- data->predicted_us = max(measured_us, data->last_measured_us);
+ data->current_predicted_us = max(measured_us, data->last_measured_us);
if (last_idle_us + BREAK_FUZZ <
data->expected_us - target->exit_latency) {
dca_sysfs_exit();
}
-subsys_initcall(dca_init);
+arch_initcall(dca_init);
module_exit(dca_exit);
config INTEL_IOP_ADMA
tristate "Intel IOP ADMA support"
depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
- select ASYNC_CORE
select DMA_ENGINE
help
Enable support for the Intel(R) IOP Series RAID engines.
config MV_XOR
bool "Marvell XOR engine support"
depends on PLAT_ORION
- select ASYNC_CORE
select DMA_ENGINE
---help---
Enable support for the Marvell XOR engine.
*
* LOCKING:
*
- * The subsystem keeps two global lists, dma_device_list and dma_client_list.
- * Both of these are protected by a mutex, dma_list_mutex.
+ * The subsystem keeps a global list of dma_device structs it is protected by a
+ * mutex, dma_list_mutex.
+ *
+ * A subsystem can get access to a channel by calling dmaengine_get() followed
+ * by dma_find_channel(), or if it has need for an exclusive channel it can call
+ * dma_request_channel(). Once a channel is allocated a reference is taken
+ * against its corresponding driver to disable removal.
*
* Each device has a channels list, which runs unlocked but is never modified
* once the device is registered, it's just setup by the driver.
*
- * Each client is responsible for keeping track of the channels it uses. See
- * the definition of dma_event_callback in dmaengine.h.
- *
- * Each device has a kref, which is initialized to 1 when the device is
- * registered. A kref_get is done for each device registered. When the
- * device is released, the corresponding kref_put is done in the release
- * method. Every time one of the device's channels is allocated to a client,
- * a kref_get occurs. When the channel is freed, the corresponding kref_put
- * happens. The device's release function does a completion, so
- * unregister_device does a remove event, device_unregister, a kref_put
- * for the first reference, then waits on the completion for all other
- * references to finish.
- *
- * Each channel has an open-coded implementation of Rusty Russell's "bigref,"
- * with a kref and a per_cpu local_t. A dma_chan_get is called when a client
- * signals that it wants to use a channel, and dma_chan_put is called when
- * a channel is removed or a client using it is unregistered. A client can
- * take extra references per outstanding transaction, as is the case with
- * the NET DMA client. The release function does a kref_put on the device.
- * -ChrisL, DanW
+ * See Documentation/dmaengine.txt for more details
*/
#include <linux/init.h>
#include <linux/rcupdate.h>
#include <linux/mutex.h>
#include <linux/jiffies.h>
+#include <linux/rculist.h>
+#include <linux/idr.h>
static DEFINE_MUTEX(dma_list_mutex);
static LIST_HEAD(dma_device_list);
-static LIST_HEAD(dma_client_list);
+static long dmaengine_ref_count;
+static struct idr dma_idr;
/* --- sysfs implementation --- */
+/**
+ * dev_to_dma_chan - convert a device pointer to the its sysfs container object
+ * @dev - device node
+ *
+ * Must be called under dma_list_mutex
+ */
+static struct dma_chan *dev_to_dma_chan(struct device *dev)
+{
+ struct dma_chan_dev *chan_dev;
+
+ chan_dev = container_of(dev, typeof(*chan_dev), device);
+ return chan_dev->chan;
+}
+
static ssize_t show_memcpy_count(struct device *dev, struct device_attribute *attr, char *buf)
{
- struct dma_chan *chan = to_dma_chan(dev);
+ struct dma_chan *chan;
unsigned long count = 0;
int i;
+ int err;
- for_each_possible_cpu(i)
- count += per_cpu_ptr(chan->local, i)->memcpy_count;
+ mutex_lock(&dma_list_mutex);
+ chan = dev_to_dma_chan(dev);
+ if (chan) {
+ for_each_possible_cpu(i)
+ count += per_cpu_ptr(chan->local, i)->memcpy_count;
+ err = sprintf(buf, "%lu\n", count);
+ } else
+ err = -ENODEV;
+ mutex_unlock(&dma_list_mutex);
- return sprintf(buf, "%lu\n", count);
+ return err;
}
static ssize_t show_bytes_transferred(struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct dma_chan *chan = to_dma_chan(dev);
+ struct dma_chan *chan;
unsigned long count = 0;
int i;
+ int err;
- for_each_possible_cpu(i)
- count += per_cpu_ptr(chan->local, i)->bytes_transferred;
+ mutex_lock(&dma_list_mutex);
+ chan = dev_to_dma_chan(dev);
+ if (chan) {
+ for_each_possible_cpu(i)
+ count += per_cpu_ptr(chan->local, i)->bytes_transferred;
+ err = sprintf(buf, "%lu\n", count);
+ } else
+ err = -ENODEV;
+ mutex_unlock(&dma_list_mutex);
- return sprintf(buf, "%lu\n", count);
+ return err;
}
static ssize_t show_in_use(struct device *dev, struct device_attribute *attr, char *buf)
{
- struct dma_chan *chan = to_dma_chan(dev);
- int in_use = 0;
-
- if (unlikely(chan->slow_ref) &&
- atomic_read(&chan->refcount.refcount) > 1)
- in_use = 1;
- else {
- if (local_read(&(per_cpu_ptr(chan->local,
- get_cpu())->refcount)) > 0)
- in_use = 1;
- put_cpu();
- }
+ struct dma_chan *chan;
+ int err;
- return sprintf(buf, "%d\n", in_use);
+ mutex_lock(&dma_list_mutex);
+ chan = dev_to_dma_chan(dev);
+ if (chan)
+ err = sprintf(buf, "%d\n", chan->client_count);
+ else
+ err = -ENODEV;
+ mutex_unlock(&dma_list_mutex);
+
+ return err;
}
static struct device_attribute dma_attrs[] = {
__ATTR_NULL
};
-static void dma_async_device_cleanup(struct kref *kref);
-
-static void dma_dev_release(struct device *dev)
+static void chan_dev_release(struct device *dev)
{
- struct dma_chan *chan = to_dma_chan(dev);
- kref_put(&chan->device->refcount, dma_async_device_cleanup);
+ struct dma_chan_dev *chan_dev;
+
+ chan_dev = container_of(dev, typeof(*chan_dev), device);
+ if (atomic_dec_and_test(chan_dev->idr_ref)) {
+ mutex_lock(&dma_list_mutex);
+ idr_remove(&dma_idr, chan_dev->dev_id);
+ mutex_unlock(&dma_list_mutex);
+ kfree(chan_dev->idr_ref);
+ }
+ kfree(chan_dev);
}
static struct class dma_devclass = {
.name = "dma",
.dev_attrs = dma_attrs,
- .dev_release = dma_dev_release,
+ .dev_release = chan_dev_release,
};
/* --- client and device registration --- */
-#define dma_chan_satisfies_mask(chan, mask) \
- __dma_chan_satisfies_mask((chan), &(mask))
+#define dma_device_satisfies_mask(device, mask) \
+ __dma_device_satisfies_mask((device), &(mask))
static int
-__dma_chan_satisfies_mask(struct dma_chan *chan, dma_cap_mask_t *want)
+__dma_device_satisfies_mask(struct dma_device *device, dma_cap_mask_t *want)
{
dma_cap_mask_t has;
- bitmap_and(has.bits, want->bits, chan->device->cap_mask.bits,
+ bitmap_and(has.bits, want->bits, device->cap_mask.bits,
DMA_TX_TYPE_END);
return bitmap_equal(want->bits, has.bits, DMA_TX_TYPE_END);
}
+static struct module *dma_chan_to_owner(struct dma_chan *chan)
+{
+ return chan->device->dev->driver->owner;
+}
+
/**
- * dma_client_chan_alloc - try to allocate channels to a client
- * @client: &dma_client
+ * balance_ref_count - catch up the channel reference count
+ * @chan - channel to balance ->client_count versus dmaengine_ref_count
*
- * Called with dma_list_mutex held.
+ * balance_ref_count must be called under dma_list_mutex
*/
-static void dma_client_chan_alloc(struct dma_client *client)
+static void balance_ref_count(struct dma_chan *chan)
{
- struct dma_device *device;
- struct dma_chan *chan;
- int desc; /* allocated descriptor count */
- enum dma_state_client ack;
+ struct module *owner = dma_chan_to_owner(chan);
- /* Find a channel */
- list_for_each_entry(device, &dma_device_list, global_node) {
- /* Does the client require a specific DMA controller? */
- if (client->slave && client->slave->dma_dev
- && client->slave->dma_dev != device->dev)
- continue;
+ while (chan->client_count < dmaengine_ref_count) {
+ __module_get(owner);
+ chan->client_count++;
+ }
+}
- list_for_each_entry(chan, &device->channels, device_node) {
- if (!dma_chan_satisfies_mask(chan, client->cap_mask))
- continue;
+/**
+ * dma_chan_get - try to grab a dma channel's parent driver module
+ * @chan - channel to grab
+ *
+ * Must be called under dma_list_mutex
+ */
+static int dma_chan_get(struct dma_chan *chan)
+{
+ int err = -ENODEV;
+ struct module *owner = dma_chan_to_owner(chan);
+
+ if (chan->client_count) {
+ __module_get(owner);
+ err = 0;
+ } else if (try_module_get(owner))
+ err = 0;
+
+ if (err == 0)
+ chan->client_count++;
+
+ /* allocate upon first client reference */
+ if (chan->client_count == 1 && err == 0) {
+ int desc_cnt = chan->device->device_alloc_chan_resources(chan);
+
+ if (desc_cnt < 0) {
+ err = desc_cnt;
+ chan->client_count = 0;
+ module_put(owner);
+ } else if (!dma_has_cap(DMA_PRIVATE, chan->device->cap_mask))
+ balance_ref_count(chan);
+ }
- desc = chan->device->device_alloc_chan_resources(
- chan, client);
- if (desc >= 0) {
- ack = client->event_callback(client,
- chan,
- DMA_RESOURCE_AVAILABLE);
+ return err;
+}
- /* we are done once this client rejects
- * an available resource
- */
- if (ack == DMA_ACK) {
- dma_chan_get(chan);
- chan->client_count++;
- } else if (ack == DMA_NAK)
- return;
- }
- }
- }
+/**
+ * dma_chan_put - drop a reference to a dma channel's parent driver module
+ * @chan - channel to release
+ *
+ * Must be called under dma_list_mutex
+ */
+static void dma_chan_put(struct dma_chan *chan)
+{
+ if (!chan->client_count)
+ return; /* this channel failed alloc_chan_resources */
+ chan->client_count--;
+ module_put(dma_chan_to_owner(chan));
+ if (chan->client_count == 0)
+ chan->device->device_free_chan_resources(chan);
}
enum dma_status dma_sync_wait(struct dma_chan *chan, dma_cookie_t cookie)
EXPORT_SYMBOL(dma_sync_wait);
/**
- * dma_chan_cleanup - release a DMA channel's resources
- * @kref: kernel reference structure that contains the DMA channel device
+ * dma_cap_mask_all - enable iteration over all operation types
+ */
+static dma_cap_mask_t dma_cap_mask_all;
+
+/**
+ * dma_chan_tbl_ent - tracks channel allocations per core/operation
+ * @chan - associated channel for this entry
+ */
+struct dma_chan_tbl_ent {
+ struct dma_chan *chan;
+};
+
+/**
+ * channel_table - percpu lookup table for memory-to-memory offload providers
*/
-void dma_chan_cleanup(struct kref *kref)
+static struct dma_chan_tbl_ent *channel_table[DMA_TX_TYPE_END];
+
+static int __init dma_channel_table_init(void)
{
- struct dma_chan *chan = container_of(kref, struct dma_chan, refcount);
- chan->device->device_free_chan_resources(chan);
- kref_put(&chan->device->refcount, dma_async_device_cleanup);
+ enum dma_transaction_type cap;
+ int err = 0;
+
+ bitmap_fill(dma_cap_mask_all.bits, DMA_TX_TYPE_END);
+
+ /* 'interrupt', 'private', and 'slave' are channel capabilities,
+ * but are not associated with an operation so they do not need
+ * an entry in the channel_table
+ */
+ clear_bit(DMA_INTERRUPT, dma_cap_mask_all.bits);
+ clear_bit(DMA_PRIVATE, dma_cap_mask_all.bits);
+ clear_bit(DMA_SLAVE, dma_cap_mask_all.bits);
+
+ for_each_dma_cap_mask(cap, dma_cap_mask_all) {
+ channel_table[cap] = alloc_percpu(struct dma_chan_tbl_ent);
+ if (!channel_table[cap]) {
+ err = -ENOMEM;
+ break;
+ }
+ }
+
+ if (err) {
+ pr_err("dmaengine: initialization failure\n");
+ for_each_dma_cap_mask(cap, dma_cap_mask_all)
+ if (channel_table[cap])
+ free_percpu(channel_table[cap]);
+ }
+
+ return err;
}
-EXPORT_SYMBOL(dma_chan_cleanup);
+arch_initcall(dma_channel_table_init);
-static void dma_chan_free_rcu(struct rcu_head *rcu)
+/**
+ * dma_find_channel - find a channel to carry out the operation
+ * @tx_type: transaction type
+ */
+struct dma_chan *dma_find_channel(enum dma_transaction_type tx_type)
{
- struct dma_chan *chan = container_of(rcu, struct dma_chan, rcu);
- int bias = 0x7FFFFFFF;
- int i;
- for_each_possible_cpu(i)
- bias -= local_read(&per_cpu_ptr(chan->local, i)->refcount);
- atomic_sub(bias, &chan->refcount.refcount);
- kref_put(&chan->refcount, dma_chan_cleanup);
+ struct dma_chan *chan;
+ int cpu;
+
+ WARN_ONCE(dmaengine_ref_count == 0,
+ "client called %s without a reference", __func__);
+
+ cpu = get_cpu();
+ chan = per_cpu_ptr(channel_table[tx_type], cpu)->chan;
+ put_cpu();
+
+ return chan;
}
+EXPORT_SYMBOL(dma_find_channel);
-static void dma_chan_release(struct dma_chan *chan)
+/**
+ * dma_issue_pending_all - flush all pending operations across all channels
+ */
+void dma_issue_pending_all(void)
{
- atomic_add(0x7FFFFFFF, &chan->refcount.refcount);
- chan->slow_ref = 1;
- call_rcu(&chan->rcu, dma_chan_free_rcu);
+ struct dma_device *device;
+ struct dma_chan *chan;
+
+ WARN_ONCE(dmaengine_ref_count == 0,
+ "client called %s without a reference", __func__);
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(device, &dma_device_list, global_node) {
+ if (dma_has_cap(DMA_PRIVATE, device->cap_mask))
+ continue;
+ list_for_each_entry(chan, &device->channels, device_node)
+ if (chan->client_count)
+ device->device_issue_pending(chan);
+ }
+ rcu_read_unlock();
}
+EXPORT_SYMBOL(dma_issue_pending_all);
/**
- * dma_chans_notify_available - broadcast available channels to the clients
+ * nth_chan - returns the nth channel of the given capability
+ * @cap: capability to match
+ * @n: nth channel desired
+ *
+ * Defaults to returning the channel with the desired capability and the
+ * lowest reference count when 'n' cannot be satisfied. Must be called
+ * under dma_list_mutex.
*/
-static void dma_clients_notify_available(void)
+static struct dma_chan *nth_chan(enum dma_transaction_type cap, int n)
{
- struct dma_client *client;
+ struct dma_device *device;
+ struct dma_chan *chan;
+ struct dma_chan *ret = NULL;
+ struct dma_chan *min = NULL;
- mutex_lock(&dma_list_mutex);
+ list_for_each_entry(device, &dma_device_list, global_node) {
+ if (!dma_has_cap(cap, device->cap_mask) ||
+ dma_has_cap(DMA_PRIVATE, device->cap_mask))
+ continue;
+ list_for_each_entry(chan, &device->channels, device_node) {
+ if (!chan->client_count)
+ continue;
+ if (!min)
+ min = chan;
+ else if (chan->table_count < min->table_count)
+ min = chan;
+
+ if (n-- == 0) {
+ ret = chan;
+ break; /* done */
+ }
+ }
+ if (ret)
+ break; /* done */
+ }
- list_for_each_entry(client, &dma_client_list, global_node)
- dma_client_chan_alloc(client);
+ if (!ret)
+ ret = min;
- mutex_unlock(&dma_list_mutex);
+ if (ret)
+ ret->table_count++;
+
+ return ret;
}
/**
- * dma_chans_notify_available - tell the clients that a channel is going away
- * @chan: channel on its way out
+ * dma_channel_rebalance - redistribute the available channels
+ *
+ * Optimize for cpu isolation (each cpu gets a dedicated channel for an
+ * operation type) in the SMP case, and operation isolation (avoid
+ * multi-tasking channels) in the non-SMP case. Must be called under
+ * dma_list_mutex.
*/
-static void dma_clients_notify_removed(struct dma_chan *chan)
+static void dma_channel_rebalance(void)
{
- struct dma_client *client;
- enum dma_state_client ack;
+ struct dma_chan *chan;
+ struct dma_device *device;
+ int cpu;
+ int cap;
+ int n;
- mutex_lock(&dma_list_mutex);
+ /* undo the last distribution */
+ for_each_dma_cap_mask(cap, dma_cap_mask_all)
+ for_each_possible_cpu(cpu)
+ per_cpu_ptr(channel_table[cap], cpu)->chan = NULL;
+
+ list_for_each_entry(device, &dma_device_list, global_node) {
+ if (dma_has_cap(DMA_PRIVATE, device->cap_mask))
+ continue;
+ list_for_each_entry(chan, &device->channels, device_node)
+ chan->table_count = 0;
+ }
- list_for_each_entry(client, &dma_client_list, global_node) {
- ack = client->event_callback(client, chan,
- DMA_RESOURCE_REMOVED);
+ /* don't populate the channel_table if no clients are available */
+ if (!dmaengine_ref_count)
+ return;
- /* client was holding resources for this channel so
- * free it
- */
- if (ack == DMA_ACK) {
- dma_chan_put(chan);
- chan->client_count--;
+ /* redistribute available channels */
+ n = 0;
+ for_each_dma_cap_mask(cap, dma_cap_mask_all)
+ for_each_online_cpu(cpu) {
+ if (num_possible_cpus() > 1)
+ chan = nth_chan(cap, n++);
+ else
+ chan = nth_chan(cap, -1);
+
+ per_cpu_ptr(channel_table[cap], cpu)->chan = chan;
+ }
+}
+
+static struct dma_chan *private_candidate(dma_cap_mask_t *mask, struct dma_device *dev,
+ dma_filter_fn fn, void *fn_param)
+{
+ struct dma_chan *chan;
+
+ if (!__dma_device_satisfies_mask(dev, mask)) {
+ pr_debug("%s: wrong capabilities\n", __func__);
+ return NULL;
+ }
+ /* devices with multiple channels need special handling as we need to
+ * ensure that all channels are either private or public.
+ */
+ if (dev->chancnt > 1 && !dma_has_cap(DMA_PRIVATE, dev->cap_mask))
+ list_for_each_entry(chan, &dev->channels, device_node) {
+ /* some channels are already publicly allocated */
+ if (chan->client_count)
+ return NULL;
}
+
+ list_for_each_entry(chan, &dev->channels, device_node) {
+ if (chan->client_count) {
+ pr_debug("%s: %s busy\n",
+ __func__, dma_chan_name(chan));
+ continue;
+ }
+ if (fn && !fn(chan, fn_param)) {
+ pr_debug("%s: %s filter said false\n",
+ __func__, dma_chan_name(chan));
+ continue;
+ }
+ return chan;
}
- mutex_unlock(&dma_list_mutex);
+ return NULL;
}
/**
- * dma_async_client_register - register a &dma_client
- * @client: ptr to a client structure with valid 'event_callback' and 'cap_mask'
+ * dma_request_channel - try to allocate an exclusive channel
+ * @mask: capabilities that the channel must satisfy
+ * @fn: optional callback to disposition available channels
+ * @fn_param: opaque parameter to pass to dma_filter_fn
*/
-void dma_async_client_register(struct dma_client *client)
+struct dma_chan *__dma_request_channel(dma_cap_mask_t *mask, dma_filter_fn fn, void *fn_param)
{
- /* validate client data */
- BUG_ON(dma_has_cap(DMA_SLAVE, client->cap_mask) &&
- !client->slave);
+ struct dma_device *device, *_d;
+ struct dma_chan *chan = NULL;
+ int err;
+ /* Find a channel */
+ mutex_lock(&dma_list_mutex);
+ list_for_each_entry_safe(device, _d, &dma_device_list, global_node) {
+ chan = private_candidate(mask, device, fn, fn_param);
+ if (chan) {
+ /* Found a suitable channel, try to grab, prep, and
+ * return it. We first set DMA_PRIVATE to disable
+ * balance_ref_count as this channel will not be
+ * published in the general-purpose allocator
+ */
+ dma_cap_set(DMA_PRIVATE, device->cap_mask);
+ err = dma_chan_get(chan);
+
+ if (err == -ENODEV) {
+ pr_debug("%s: %s module removed\n", __func__,
+ dma_chan_name(chan));
+ list_del_rcu(&device->global_node);
+ } else if (err)
+ pr_err("dmaengine: failed to get %s: (%d)\n",
+ dma_chan_name(chan), err);
+ else
+ break;
+ chan = NULL;
+ }
+ }
+ mutex_unlock(&dma_list_mutex);
+
+ pr_debug("%s: %s (%s)\n", __func__, chan ? "success" : "fail",
+ chan ? dma_chan_name(chan) : NULL);
+
+ return chan;
+}
+EXPORT_SYMBOL_GPL(__dma_request_channel);
+
+void dma_release_channel(struct dma_chan *chan)
+{
mutex_lock(&dma_list_mutex);
- list_add_tail(&client->global_node, &dma_client_list);
+ WARN_ONCE(chan->client_count != 1,
+ "chan reference count %d != 1\n", chan->client_count);
+ dma_chan_put(chan);
mutex_unlock(&dma_list_mutex);
}
-EXPORT_SYMBOL(dma_async_client_register);
+EXPORT_SYMBOL_GPL(dma_release_channel);
/**
- * dma_async_client_unregister - unregister a client and free the &dma_client
- * @client: &dma_client to free
- *
- * Force frees any allocated DMA channels, frees the &dma_client memory
+ * dmaengine_get - register interest in dma_channels
*/
-void dma_async_client_unregister(struct dma_client *client)
+void dmaengine_get(void)
{
- struct dma_device *device;
+ struct dma_device *device, *_d;
struct dma_chan *chan;
- enum dma_state_client ack;
-
- if (!client)
- return;
+ int err;
mutex_lock(&dma_list_mutex);
- /* free all channels the client is holding */
- list_for_each_entry(device, &dma_device_list, global_node)
- list_for_each_entry(chan, &device->channels, device_node) {
- ack = client->event_callback(client, chan,
- DMA_RESOURCE_REMOVED);
+ dmaengine_ref_count++;
- if (ack == DMA_ACK) {
- dma_chan_put(chan);
- chan->client_count--;
- }
+ /* try to grab channels */
+ list_for_each_entry_safe(device, _d, &dma_device_list, global_node) {
+ if (dma_has_cap(DMA_PRIVATE, device->cap_mask))
+ continue;
+ list_for_each_entry(chan, &device->channels, device_node) {
+ err = dma_chan_get(chan);
+ if (err == -ENODEV) {
+ /* module removed before we could use it */
+ list_del_rcu(&device->global_node);
+ break;
+ } else if (err)
+ pr_err("dmaengine: failed to get %s: (%d)\n",
+ dma_chan_name(chan), err);
}
+ }
- list_del(&client->global_node);
+ /* if this is the first reference and there were channels
+ * waiting we need to rebalance to get those channels
+ * incorporated into the channel table
+ */
+ if (dmaengine_ref_count == 1)
+ dma_channel_rebalance();
mutex_unlock(&dma_list_mutex);
}
-EXPORT_SYMBOL(dma_async_client_unregister);
+EXPORT_SYMBOL(dmaengine_get);
/**
- * dma_async_client_chan_request - send all available channels to the
- * client that satisfy the capability mask
- * @client - requester
+ * dmaengine_put - let dma drivers be removed when ref_count == 0
*/
-void dma_async_client_chan_request(struct dma_client *client)
+void dmaengine_put(void)
{
+ struct dma_device *device;
+ struct dma_chan *chan;
+
mutex_lock(&dma_list_mutex);
- dma_client_chan_alloc(client);
+ dmaengine_ref_count--;
+ BUG_ON(dmaengine_ref_count < 0);
+ /* drop channel references */
+ list_for_each_entry(device, &dma_device_list, global_node) {
+ if (dma_has_cap(DMA_PRIVATE, device->cap_mask))
+ continue;
+ list_for_each_entry(chan, &device->channels, device_node)
+ dma_chan_put(chan);
+ }
mutex_unlock(&dma_list_mutex);
}
-EXPORT_SYMBOL(dma_async_client_chan_request);
+EXPORT_SYMBOL(dmaengine_put);
/**
* dma_async_device_register - registers DMA devices found
*/
int dma_async_device_register(struct dma_device *device)
{
- static int id;
int chancnt = 0, rc;
struct dma_chan* chan;
+ atomic_t *idr_ref;
if (!device)
return -ENODEV;
BUG_ON(!device->device_issue_pending);
BUG_ON(!device->dev);
- init_completion(&device->done);
- kref_init(&device->refcount);
-
+ idr_ref = kmalloc(sizeof(*idr_ref), GFP_KERNEL);
+ if (!idr_ref)
+ return -ENOMEM;
+ atomic_set(idr_ref, 0);
+ idr_retry:
+ if (!idr_pre_get(&dma_idr, GFP_KERNEL))
+ return -ENOMEM;
mutex_lock(&dma_list_mutex);
- device->dev_id = id++;
+ rc = idr_get_new(&dma_idr, NULL, &device->dev_id);
mutex_unlock(&dma_list_mutex);
+ if (rc == -EAGAIN)
+ goto idr_retry;
+ else if (rc != 0)
+ return rc;
/* represent channels in sysfs. Probably want devs too */
list_for_each_entry(chan, &device->channels, device_node) {
chan->local = alloc_percpu(typeof(*chan->local));
if (chan->local == NULL)
continue;
+ chan->dev = kzalloc(sizeof(*chan->dev), GFP_KERNEL);
+ if (chan->dev == NULL) {
+ free_percpu(chan->local);
+ continue;
+ }
chan->chan_id = chancnt++;
- chan->dev.class = &dma_devclass;
- chan->dev.parent = device->dev;
- dev_set_name(&chan->dev, "dma%dchan%d",
+ chan->dev->device.class = &dma_devclass;
+ chan->dev->device.parent = device->dev;
+ chan->dev->chan = chan;
+ chan->dev->idr_ref = idr_ref;
+ chan->dev->dev_id = device->dev_id;
+ atomic_inc(idr_ref);
+ dev_set_name(&chan->dev->device, "dma%dchan%d",
device->dev_id, chan->chan_id);
- rc = device_register(&chan->dev);
+ rc = device_register(&chan->dev->device);
if (rc) {
- chancnt--;
free_percpu(chan->local);
chan->local = NULL;
goto err_out;
}
-
- /* One for the channel, one of the class device */
- kref_get(&device->refcount);
- kref_get(&device->refcount);
- kref_init(&chan->refcount);
chan->client_count = 0;
- chan->slow_ref = 0;
- INIT_RCU_HEAD(&chan->rcu);
}
+ device->chancnt = chancnt;
mutex_lock(&dma_list_mutex);
- list_add_tail(&device->global_node, &dma_device_list);
+ /* take references on public channels */
+ if (dmaengine_ref_count && !dma_has_cap(DMA_PRIVATE, device->cap_mask))
+ list_for_each_entry(chan, &device->channels, device_node) {
+ /* if clients are already waiting for channels we need
+ * to take references on their behalf
+ */
+ if (dma_chan_get(chan) == -ENODEV) {
+ /* note we can only get here for the first
+ * channel as the remaining channels are
+ * guaranteed to get a reference
+ */
+ rc = -ENODEV;
+ mutex_unlock(&dma_list_mutex);
+ goto err_out;
+ }
+ }
+ list_add_tail_rcu(&device->global_node, &dma_device_list);
+ dma_channel_rebalance();
mutex_unlock(&dma_list_mutex);
- dma_clients_notify_available();
-
return 0;
err_out:
list_for_each_entry(chan, &device->channels, device_node) {
if (chan->local == NULL)
continue;
- kref_put(&device->refcount, dma_async_device_cleanup);
- device_unregister(&chan->dev);
- chancnt--;
+ mutex_lock(&dma_list_mutex);
+ chan->dev->chan = NULL;
+ mutex_unlock(&dma_list_mutex);
+ device_unregister(&chan->dev->device);
free_percpu(chan->local);
}
return rc;
EXPORT_SYMBOL(dma_async_device_register);
/**
- * dma_async_device_cleanup - function called when all references are released
- * @kref: kernel reference object
- */
-static void dma_async_device_cleanup(struct kref *kref)
-{
- struct dma_device *device;
-
- device = container_of(kref, struct dma_device, refcount);
- complete(&device->done);
-}
-
-/**
- * dma_async_device_unregister - unregisters DMA devices
+ * dma_async_device_unregister - unregister a DMA device
* @device: &dma_device
+ *
+ * This routine is called by dma driver exit routines, dmaengine holds module
+ * references to prevent it being called while channels are in use.
*/
void dma_async_device_unregister(struct dma_device *device)
{
struct dma_chan *chan;
mutex_lock(&dma_list_mutex);
- list_del(&device->global_node);
+ list_del_rcu(&device->global_node);
+ dma_channel_rebalance();
mutex_unlock(&dma_list_mutex);
list_for_each_entry(chan, &device->channels, device_node) {
- dma_clients_notify_removed(chan);
- device_unregister(&chan->dev);
- dma_chan_release(chan);
+ WARN_ONCE(chan->client_count,
+ "%s called while %d clients hold a reference\n",
+ __func__, chan->client_count);
+ mutex_lock(&dma_list_mutex);
+ chan->dev->chan = NULL;
+ mutex_unlock(&dma_list_mutex);
+ device_unregister(&chan->dev->device);
}
-
- kref_put(&device->refcount, dma_async_device_cleanup);
- wait_for_completion(&device->done);
}
EXPORT_SYMBOL(dma_async_device_unregister);
}
EXPORT_SYMBOL(dma_async_tx_descriptor_init);
+/* dma_wait_for_async_tx - spin wait for a transaction to complete
+ * @tx: in-flight transaction to wait on
+ *
+ * This routine assumes that tx was obtained from a call to async_memcpy,
+ * async_xor, async_memset, etc which ensures that tx is "in-flight" (prepped
+ * and submitted). Walking the parent chain is only meant to cover for DMA
+ * drivers that do not implement the DMA_INTERRUPT capability and may race with
+ * the driver's descriptor cleanup routine.
+ */
+enum dma_status
+dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx)
+{
+ enum dma_status status;
+ struct dma_async_tx_descriptor *iter;
+ struct dma_async_tx_descriptor *parent;
+
+ if (!tx)
+ return DMA_SUCCESS;
+
+ WARN_ONCE(tx->parent, "%s: speculatively walking dependency chain for"
+ " %s\n", __func__, dma_chan_name(tx->chan));
+
+ /* poll through the dependency chain, return when tx is complete */
+ do {
+ iter = tx;
+
+ /* find the root of the unsubmitted dependency chain */
+ do {
+ parent = iter->parent;
+ if (!parent)
+ break;
+ else
+ iter = parent;
+ } while (parent);
+
+ /* there is a small window for ->parent == NULL and
+ * ->cookie == -EBUSY
+ */
+ while (iter->cookie == -EBUSY)
+ cpu_relax();
+
+ status = dma_sync_wait(iter->chan, iter->cookie);
+ } while (status == DMA_IN_PROGRESS || (iter != tx));
+
+ return status;
+}
+EXPORT_SYMBOL_GPL(dma_wait_for_async_tx);
+
+/* dma_run_dependencies - helper routine for dma drivers to process
+ * (start) dependent operations on their target channel
+ * @tx: transaction with dependencies
+ */
+void dma_run_dependencies(struct dma_async_tx_descriptor *tx)
+{
+ struct dma_async_tx_descriptor *dep = tx->next;
+ struct dma_async_tx_descriptor *dep_next;
+ struct dma_chan *chan;
+
+ if (!dep)
+ return;
+
+ chan = dep->chan;
+
+ /* keep submitting up until a channel switch is detected
+ * in that case we will be called again as a result of
+ * processing the interrupt from async_tx_channel_switch
+ */
+ for (; dep; dep = dep_next) {
+ spin_lock_bh(&dep->lock);
+ dep->parent = NULL;
+ dep_next = dep->next;
+ if (dep_next && dep_next->chan == chan)
+ dep->next = NULL; /* ->next will be submitted */
+ else
+ dep_next = NULL; /* submit current dep and terminate */
+ spin_unlock_bh(&dep->lock);
+
+ dep->tx_submit(dep);
+ }
+
+ chan->device->device_issue_pending(chan);
+}
+EXPORT_SYMBOL_GPL(dma_run_dependencies);
+
static int __init dma_bus_init(void)
{
+ idr_init(&dma_idr);
mutex_init(&dma_list_mutex);
return class_register(&dma_devclass);
}
-subsys_initcall(dma_bus_init);
+arch_initcall(dma_bus_init);
+
static unsigned int max_channels;
module_param(max_channels, uint, S_IRUGO);
-MODULE_PARM_DESC(nr_channels,
+MODULE_PARM_DESC(max_channels,
"Maximum number of channels to use (default: all)");
/*
/*
* These are protected by dma_list_mutex since they're only used by
- * the DMA client event callback
+ * the DMA filter function callback
*/
static LIST_HEAD(dmatest_channels);
static unsigned int nr_channels;
{
if (test_channel[0] == '\0')
return true;
- return strcmp(dev_name(&chan->dev), test_channel) == 0;
+ return strcmp(dma_chan_name(chan), test_channel) == 0;
}
static bool dmatest_match_device(struct dma_device *device)
smp_rmb();
chan = thread->chan;
- dma_chan_get(chan);
while (!kthread_should_stop()) {
total_tests++;
}
ret = 0;
- dma_chan_put(chan);
kfree(thread->dstbuf);
err_dstbuf:
kfree(thread->srcbuf);
kfree(dtc);
}
-static enum dma_state_client dmatest_add_channel(struct dma_chan *chan)
+static int dmatest_add_channel(struct dma_chan *chan)
{
struct dmatest_chan *dtc;
struct dmatest_thread *thread;
unsigned int i;
- /* Have we already been told about this channel? */
- list_for_each_entry(dtc, &dmatest_channels, node)
- if (dtc->chan == chan)
- return DMA_DUP;
-
dtc = kmalloc(sizeof(struct dmatest_chan), GFP_KERNEL);
if (!dtc) {
- pr_warning("dmatest: No memory for %s\n", dev_name(&chan->dev));
- return DMA_NAK;
+ pr_warning("dmatest: No memory for %s\n", dma_chan_name(chan));
+ return -ENOMEM;
}
dtc->chan = chan;
thread = kzalloc(sizeof(struct dmatest_thread), GFP_KERNEL);
if (!thread) {
pr_warning("dmatest: No memory for %s-test%u\n",
- dev_name(&chan->dev), i);
+ dma_chan_name(chan), i);
break;
}
thread->chan = dtc->chan;
smp_wmb();
thread->task = kthread_run(dmatest_func, thread, "%s-test%u",
- dev_name(&chan->dev), i);
+ dma_chan_name(chan), i);
if (IS_ERR(thread->task)) {
pr_warning("dmatest: Failed to run thread %s-test%u\n",
- dev_name(&chan->dev), i);
+ dma_chan_name(chan), i);
kfree(thread);
break;
}
list_add_tail(&thread->node, &dtc->threads);
}
- pr_info("dmatest: Started %u threads using %s\n", i, dev_name(&chan->dev));
+ pr_info("dmatest: Started %u threads using %s\n", i, dma_chan_name(chan));
list_add_tail(&dtc->node, &dmatest_channels);
nr_channels++;
- return DMA_ACK;
-}
-
-static enum dma_state_client dmatest_remove_channel(struct dma_chan *chan)
-{
- struct dmatest_chan *dtc, *_dtc;
-
- list_for_each_entry_safe(dtc, _dtc, &dmatest_channels, node) {
- if (dtc->chan == chan) {
- list_del(&dtc->node);
- dmatest_cleanup_channel(dtc);
- pr_debug("dmatest: lost channel %s\n",
- dev_name(&chan->dev));
- return DMA_ACK;
- }
- }
-
- return DMA_DUP;
+ return 0;
}
-/*
- * Start testing threads as new channels are assigned to us, and kill
- * them when the channels go away.
- *
- * When we unregister the client, all channels are removed so this
- * will also take care of cleaning things up when the module is
- * unloaded.
- */
-static enum dma_state_client
-dmatest_event(struct dma_client *client, struct dma_chan *chan,
- enum dma_state state)
+static bool filter(struct dma_chan *chan, void *param)
{
- enum dma_state_client ack = DMA_NAK;
-
- switch (state) {
- case DMA_RESOURCE_AVAILABLE:
- if (!dmatest_match_channel(chan)
- || !dmatest_match_device(chan->device))
- ack = DMA_DUP;
- else if (max_channels && nr_channels >= max_channels)
- ack = DMA_NAK;
- else
- ack = dmatest_add_channel(chan);
- break;
-
- case DMA_RESOURCE_REMOVED:
- ack = dmatest_remove_channel(chan);
- break;
-
- default:
- pr_info("dmatest: Unhandled event %u (%s)\n",
- state, dev_name(&chan->dev));
- break;
- }
-
- return ack;
+ if (!dmatest_match_channel(chan) || !dmatest_match_device(chan->device))
+ return false;
+ else
+ return true;
}
-static struct dma_client dmatest_client = {
- .event_callback = dmatest_event,
-};
-
static int __init dmatest_init(void)
{
- dma_cap_set(DMA_MEMCPY, dmatest_client.cap_mask);
- dma_async_client_register(&dmatest_client);
- dma_async_client_chan_request(&dmatest_client);
+ dma_cap_mask_t mask;
+ struct dma_chan *chan;
+ int err = 0;
+
+ dma_cap_zero(mask);
+ dma_cap_set(DMA_MEMCPY, mask);
+ for (;;) {
+ chan = dma_request_channel(mask, filter, NULL);
+ if (chan) {
+ err = dmatest_add_channel(chan);
+ if (err == 0)
+ continue;
+ else {
+ dma_release_channel(chan);
+ break; /* add_channel failed, punt */
+ }
+ } else
+ break; /* no more channels available */
+ if (max_channels && nr_channels >= max_channels)
+ break; /* we have all we need */
+ }
- return 0;
+ return err;
}
-module_init(dmatest_init);
+/* when compiled-in wait for drivers to load first */
+late_initcall(dmatest_init);
static void __exit dmatest_exit(void)
{
- dma_async_client_unregister(&dmatest_client);
+ struct dmatest_chan *dtc, *_dtc;
+
+ list_for_each_entry_safe(dtc, _dtc, &dmatest_channels, node) {
+ list_del(&dtc->node);
+ dmatest_cleanup_channel(dtc);
+ pr_debug("dmatest: dropped channel %s\n",
+ dma_chan_name(dtc->chan));
+ dma_release_channel(dtc->chan);
+ }
}
module_exit(dmatest_exit);
* the controller, though.
*/
+static struct device *chan2dev(struct dma_chan *chan)
+{
+ return &chan->dev->device;
+}
+static struct device *chan2parent(struct dma_chan *chan)
+{
+ return chan->dev->device.parent;
+}
+
static struct dw_desc *dwc_first_active(struct dw_dma_chan *dwc)
{
return list_entry(dwc->active_list.next, struct dw_desc, desc_node);
ret = desc;
break;
}
- dev_dbg(&dwc->chan.dev, "desc %p not ACKed\n", desc);
+ dev_dbg(chan2dev(&dwc->chan), "desc %p not ACKed\n", desc);
i++;
}
spin_unlock_bh(&dwc->lock);
- dev_vdbg(&dwc->chan.dev, "scanned %u descriptors on freelist\n", i);
+ dev_vdbg(chan2dev(&dwc->chan), "scanned %u descriptors on freelist\n", i);
return ret;
}
struct dw_desc *child;
list_for_each_entry(child, &desc->txd.tx_list, desc_node)
- dma_sync_single_for_cpu(dwc->chan.dev.parent,
+ dma_sync_single_for_cpu(chan2parent(&dwc->chan),
child->txd.phys, sizeof(child->lli),
DMA_TO_DEVICE);
- dma_sync_single_for_cpu(dwc->chan.dev.parent,
+ dma_sync_single_for_cpu(chan2parent(&dwc->chan),
desc->txd.phys, sizeof(desc->lli),
DMA_TO_DEVICE);
}
spin_lock_bh(&dwc->lock);
list_for_each_entry(child, &desc->txd.tx_list, desc_node)
- dev_vdbg(&dwc->chan.dev,
+ dev_vdbg(chan2dev(&dwc->chan),
"moving child desc %p to freelist\n",
child);
list_splice_init(&desc->txd.tx_list, &dwc->free_list);
- dev_vdbg(&dwc->chan.dev, "moving desc %p to freelist\n", desc);
+ dev_vdbg(chan2dev(&dwc->chan), "moving desc %p to freelist\n", desc);
list_add(&desc->desc_node, &dwc->free_list);
spin_unlock_bh(&dwc->lock);
}
/* ASSERT: channel is idle */
if (dma_readl(dw, CH_EN) & dwc->mask) {
- dev_err(&dwc->chan.dev,
+ dev_err(chan2dev(&dwc->chan),
"BUG: Attempted to start non-idle channel\n");
- dev_err(&dwc->chan.dev,
+ dev_err(chan2dev(&dwc->chan),
" SAR: 0x%x DAR: 0x%x LLP: 0x%x CTL: 0x%x:%08x\n",
channel_readl(dwc, SAR),
channel_readl(dwc, DAR),
void *param;
struct dma_async_tx_descriptor *txd = &desc->txd;
- dev_vdbg(&dwc->chan.dev, "descriptor %u complete\n", txd->cookie);
+ dev_vdbg(chan2dev(&dwc->chan), "descriptor %u complete\n", txd->cookie);
dwc->completed = txd->cookie;
callback = txd->callback;
* mapped before they were submitted...
*/
if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP))
- dma_unmap_page(dwc->chan.dev.parent, desc->lli.dar, desc->len,
- DMA_FROM_DEVICE);
+ dma_unmap_page(chan2parent(&dwc->chan), desc->lli.dar,
+ desc->len, DMA_FROM_DEVICE);
if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP))
- dma_unmap_page(dwc->chan.dev.parent, desc->lli.sar, desc->len,
- DMA_TO_DEVICE);
+ dma_unmap_page(chan2parent(&dwc->chan), desc->lli.sar,
+ desc->len, DMA_TO_DEVICE);
/*
* The API requires that no submissions are done from a
LIST_HEAD(list);
if (dma_readl(dw, CH_EN) & dwc->mask) {
- dev_err(&dwc->chan.dev,
+ dev_err(chan2dev(&dwc->chan),
"BUG: XFER bit set, but channel not idle!\n");
/* Try to continue after resetting the channel... */
return;
}
- dev_vdbg(&dwc->chan.dev, "scan_descriptors: llp=0x%x\n", llp);
+ dev_vdbg(chan2dev(&dwc->chan), "scan_descriptors: llp=0x%x\n", llp);
list_for_each_entry_safe(desc, _desc, &dwc->active_list, desc_node) {
if (desc->lli.llp == llp)
dwc_descriptor_complete(dwc, desc);
}
- dev_err(&dwc->chan.dev,
+ dev_err(chan2dev(&dwc->chan),
"BUG: All descriptors done, but channel not idle!\n");
/* Try to continue after resetting the channel... */
static void dwc_dump_lli(struct dw_dma_chan *dwc, struct dw_lli *lli)
{
- dev_printk(KERN_CRIT, &dwc->chan.dev,
+ dev_printk(KERN_CRIT, chan2dev(&dwc->chan),
" desc: s0x%x d0x%x l0x%x c0x%x:%x\n",
lli->sar, lli->dar, lli->llp,
lli->ctlhi, lli->ctllo);
* controller flagged an error instead of scribbling over
* random memory locations.
*/
- dev_printk(KERN_CRIT, &dwc->chan.dev,
+ dev_printk(KERN_CRIT, chan2dev(&dwc->chan),
"Bad descriptor submitted for DMA!\n");
- dev_printk(KERN_CRIT, &dwc->chan.dev,
+ dev_printk(KERN_CRIT, chan2dev(&dwc->chan),
" cookie: %d\n", bad_desc->txd.cookie);
dwc_dump_lli(dwc, &bad_desc->lli);
list_for_each_entry(child, &bad_desc->txd.tx_list, desc_node)
* for DMA. But this is hard to do in a race-free manner.
*/
if (list_empty(&dwc->active_list)) {
- dev_vdbg(&tx->chan->dev, "tx_submit: started %u\n",
+ dev_vdbg(chan2dev(tx->chan), "tx_submit: started %u\n",
desc->txd.cookie);
dwc_dostart(dwc, desc);
list_add_tail(&desc->desc_node, &dwc->active_list);
} else {
- dev_vdbg(&tx->chan->dev, "tx_submit: queued %u\n",
+ dev_vdbg(chan2dev(tx->chan), "tx_submit: queued %u\n",
desc->txd.cookie);
list_add_tail(&desc->desc_node, &dwc->queue);
unsigned int dst_width;
u32 ctllo;
- dev_vdbg(&chan->dev, "prep_dma_memcpy d0x%x s0x%x l0x%zx f0x%lx\n",
+ dev_vdbg(chan2dev(chan), "prep_dma_memcpy d0x%x s0x%x l0x%zx f0x%lx\n",
dest, src, len, flags);
if (unlikely(!len)) {
- dev_dbg(&chan->dev, "prep_dma_memcpy: length is zero!\n");
+ dev_dbg(chan2dev(chan), "prep_dma_memcpy: length is zero!\n");
return NULL;
}
first = desc;
} else {
prev->lli.llp = desc->txd.phys;
- dma_sync_single_for_device(chan->dev.parent,
+ dma_sync_single_for_device(chan2parent(chan),
prev->txd.phys, sizeof(prev->lli),
DMA_TO_DEVICE);
list_add_tail(&desc->desc_node,
prev->lli.ctllo |= DWC_CTLL_INT_EN;
prev->lli.llp = 0;
- dma_sync_single_for_device(chan->dev.parent,
+ dma_sync_single_for_device(chan2parent(chan),
prev->txd.phys, sizeof(prev->lli),
DMA_TO_DEVICE);
struct scatterlist *sg;
size_t total_len = 0;
- dev_vdbg(&chan->dev, "prep_dma_slave\n");
+ dev_vdbg(chan2dev(chan), "prep_dma_slave\n");
if (unlikely(!dws || !sg_len))
return NULL;
- reg_width = dws->slave.reg_width;
+ reg_width = dws->reg_width;
prev = first = NULL;
- sg_len = dma_map_sg(chan->dev.parent, sgl, sg_len, direction);
+ sg_len = dma_map_sg(chan2parent(chan), sgl, sg_len, direction);
switch (direction) {
case DMA_TO_DEVICE:
| DWC_CTLL_DST_FIX
| DWC_CTLL_SRC_INC
| DWC_CTLL_FC_M2P);
- reg = dws->slave.tx_reg;
+ reg = dws->tx_reg;
for_each_sg(sgl, sg, sg_len, i) {
struct dw_desc *desc;
u32 len;
desc = dwc_desc_get(dwc);
if (!desc) {
- dev_err(&chan->dev,
+ dev_err(chan2dev(chan),
"not enough descriptors available\n");
goto err_desc_get;
}
first = desc;
} else {
prev->lli.llp = desc->txd.phys;
- dma_sync_single_for_device(chan->dev.parent,
+ dma_sync_single_for_device(chan2parent(chan),
prev->txd.phys,
sizeof(prev->lli),
DMA_TO_DEVICE);
| DWC_CTLL_SRC_FIX
| DWC_CTLL_FC_P2M);
- reg = dws->slave.rx_reg;
+ reg = dws->rx_reg;
for_each_sg(sgl, sg, sg_len, i) {
struct dw_desc *desc;
u32 len;
desc = dwc_desc_get(dwc);
if (!desc) {
- dev_err(&chan->dev,
+ dev_err(chan2dev(chan),
"not enough descriptors available\n");
goto err_desc_get;
}
first = desc;
} else {
prev->lli.llp = desc->txd.phys;
- dma_sync_single_for_device(chan->dev.parent,
+ dma_sync_single_for_device(chan2parent(chan),
prev->txd.phys,
sizeof(prev->lli),
DMA_TO_DEVICE);
prev->lli.ctllo |= DWC_CTLL_INT_EN;
prev->lli.llp = 0;
- dma_sync_single_for_device(chan->dev.parent,
+ dma_sync_single_for_device(chan2parent(chan),
prev->txd.phys, sizeof(prev->lli),
DMA_TO_DEVICE);
spin_unlock_bh(&dwc->lock);
}
-static int dwc_alloc_chan_resources(struct dma_chan *chan,
- struct dma_client *client)
+static int dwc_alloc_chan_resources(struct dma_chan *chan)
{
struct dw_dma_chan *dwc = to_dw_dma_chan(chan);
struct dw_dma *dw = to_dw_dma(chan->device);
struct dw_desc *desc;
- struct dma_slave *slave;
struct dw_dma_slave *dws;
int i;
u32 cfghi;
u32 cfglo;
- dev_vdbg(&chan->dev, "alloc_chan_resources\n");
-
- /* Channels doing slave DMA can only handle one client. */
- if (dwc->dws || client->slave) {
- if (chan->client_count)
- return -EBUSY;
- }
+ dev_vdbg(chan2dev(chan), "alloc_chan_resources\n");
/* ASSERT: channel is idle */
if (dma_readl(dw, CH_EN) & dwc->mask) {
- dev_dbg(&chan->dev, "DMA channel not idle?\n");
+ dev_dbg(chan2dev(chan), "DMA channel not idle?\n");
return -EIO;
}
cfghi = DWC_CFGH_FIFO_MODE;
cfglo = 0;
- slave = client->slave;
- if (slave) {
+ dws = dwc->dws;
+ if (dws) {
/*
* We need controller-specific data to set up slave
* transfers.
*/
- BUG_ON(!slave->dma_dev || slave->dma_dev != dw->dma.dev);
-
- dws = container_of(slave, struct dw_dma_slave, slave);
+ BUG_ON(!dws->dma_dev || dws->dma_dev != dw->dma.dev);
- dwc->dws = dws;
cfghi = dws->cfg_hi;
cfglo = dws->cfg_lo;
- } else {
- dwc->dws = NULL;
}
-
channel_writel(dwc, CFG_LO, cfglo);
channel_writel(dwc, CFG_HI, cfghi);
desc = kzalloc(sizeof(struct dw_desc), GFP_KERNEL);
if (!desc) {
- dev_info(&chan->dev,
+ dev_info(chan2dev(chan),
"only allocated %d descriptors\n", i);
spin_lock_bh(&dwc->lock);
break;
desc->txd.tx_submit = dwc_tx_submit;
desc->txd.flags = DMA_CTRL_ACK;
INIT_LIST_HEAD(&desc->txd.tx_list);
- desc->txd.phys = dma_map_single(chan->dev.parent, &desc->lli,
+ desc->txd.phys = dma_map_single(chan2parent(chan), &desc->lli,
sizeof(desc->lli), DMA_TO_DEVICE);
dwc_desc_put(dwc, desc);
spin_unlock_bh(&dwc->lock);
- dev_dbg(&chan->dev,
+ dev_dbg(chan2dev(chan),
"alloc_chan_resources allocated %d descriptors\n", i);
return i;
struct dw_desc *desc, *_desc;
LIST_HEAD(list);
- dev_dbg(&chan->dev, "free_chan_resources (descs allocated=%u)\n",
+ dev_dbg(chan2dev(chan), "free_chan_resources (descs allocated=%u)\n",
dwc->descs_allocated);
/* ASSERT: channel is idle */
spin_unlock_bh(&dwc->lock);
list_for_each_entry_safe(desc, _desc, &list, desc_node) {
- dev_vdbg(&chan->dev, " freeing descriptor %p\n", desc);
- dma_unmap_single(chan->dev.parent, desc->txd.phys,
+ dev_vdbg(chan2dev(chan), " freeing descriptor %p\n", desc);
+ dma_unmap_single(chan2parent(chan), desc->txd.phys,
sizeof(desc->lli), DMA_TO_DEVICE);
kfree(desc);
}
- dev_vdbg(&chan->dev, "free_chan_resources done\n");
+ dev_vdbg(chan2dev(chan), "free_chan_resources done\n");
}
/*----------------------------------------------------------------------*/
*
* Return - The number of descriptors allocated.
*/
-static int fsl_dma_alloc_chan_resources(struct dma_chan *chan,
- struct dma_client *client)
+static int fsl_dma_alloc_chan_resources(struct dma_chan *chan)
{
struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan);
*/
WARN_ON(fdev->feature != new_fsl_chan->feature);
- new_fsl_chan->dev = &new_fsl_chan->common.dev;
+ new_fsl_chan->dev = &new_fsl_chan->common.dev->device;
new_fsl_chan->reg_base = ioremap(new_fsl_chan->reg.start,
new_fsl_chan->reg.end - new_fsl_chan->reg.start + 1);
module_param(ioat_dca_enabled, int, 0644);
MODULE_PARM_DESC(ioat_dca_enabled, "control support of dca service (default: 1)");
-static int ioat_setup_functionality(struct pci_dev *pdev, void __iomem *iobase)
-{
- struct ioat_device *device = pci_get_drvdata(pdev);
- u8 version;
- int err = 0;
-
- version = readb(iobase + IOAT_VER_OFFSET);
- switch (version) {
- case IOAT_VER_1_2:
- device->dma = ioat_dma_probe(pdev, iobase);
- if (device->dma && ioat_dca_enabled)
- device->dca = ioat_dca_init(pdev, iobase);
- break;
- case IOAT_VER_2_0:
- device->dma = ioat_dma_probe(pdev, iobase);
- if (device->dma && ioat_dca_enabled)
- device->dca = ioat2_dca_init(pdev, iobase);
- break;
- case IOAT_VER_3_0:
- device->dma = ioat_dma_probe(pdev, iobase);
- if (device->dma && ioat_dca_enabled)
- device->dca = ioat3_dca_init(pdev, iobase);
- break;
- default:
- err = -ENODEV;
- break;
- }
- if (!device->dma)
- err = -ENODEV;
- return err;
-}
-
-static void ioat_shutdown_functionality(struct pci_dev *pdev)
-{
- struct ioat_device *device = pci_get_drvdata(pdev);
-
- dev_err(&pdev->dev, "Removing dma and dca services\n");
- if (device->dca) {
- unregister_dca_provider(device->dca);
- free_dca_provider(device->dca);
- device->dca = NULL;
- }
-
- if (device->dma) {
- ioat_dma_remove(device->dma);
- device->dma = NULL;
- }
-}
-
static struct pci_driver ioat_pci_driver = {
.name = "ioatdma",
.id_table = ioat_pci_tbl,
.probe = ioat_probe,
- .shutdown = ioat_shutdown_functionality,
.remove = __devexit_p(ioat_remove),
};
pci_set_master(pdev);
- err = ioat_setup_functionality(pdev, iobase);
+ switch (readb(iobase + IOAT_VER_OFFSET)) {
+ case IOAT_VER_1_2:
+ device->dma = ioat_dma_probe(pdev, iobase);
+ if (device->dma && ioat_dca_enabled)
+ device->dca = ioat_dca_init(pdev, iobase);
+ break;
+ case IOAT_VER_2_0:
+ device->dma = ioat_dma_probe(pdev, iobase);
+ if (device->dma && ioat_dca_enabled)
+ device->dca = ioat2_dca_init(pdev, iobase);
+ break;
+ case IOAT_VER_3_0:
+ device->dma = ioat_dma_probe(pdev, iobase);
+ if (device->dma && ioat_dca_enabled)
+ device->dca = ioat3_dca_init(pdev, iobase);
+ break;
+ default:
+ err = -ENODEV;
+ break;
+ }
+ if (!device->dma)
+ err = -ENODEV;
+
if (err)
goto err_version;
return err;
}
-/*
- * It is unsafe to remove this module: if removed while a requested
- * dma is outstanding, esp. from tcp, it is possible to hang while
- * waiting for something that will never finish. However, if you're
- * feeling lucky, this usually works just fine.
- */
static void __devexit ioat_remove(struct pci_dev *pdev)
{
struct ioat_device *device = pci_get_drvdata(pdev);
- ioat_shutdown_functionality(pdev);
+ dev_err(&pdev->dev, "Removing dma and dca services\n");
+ if (device->dca) {
+ unregister_dca_provider(device->dca);
+ free_dca_provider(device->dca);
+ device->dca = NULL;
+ }
+
+ if (device->dma) {
+ ioat_dma_remove(device->dma);
+ device->dma = NULL;
+ }
kfree(device);
}
* ioat_dma_alloc_chan_resources - returns the number of allocated descriptors
* @chan: the channel to be filled out
*/
-static int ioat_dma_alloc_chan_resources(struct dma_chan *chan,
- struct dma_client *client)
+static int ioat_dma_alloc_chan_resources(struct dma_chan *chan)
{
struct ioat_dma_chan *ioat_chan = to_ioat_chan(chan);
struct ioat_desc_sw *desc;
*/
#define IOAT_TEST_SIZE 2000
-DECLARE_COMPLETION(test_completion);
static void ioat_dma_test_callback(void *dma_async_param)
{
- printk(KERN_ERR "ioatdma: ioat_dma_test_callback(%p)\n",
- dma_async_param);
- complete(&test_completion);
+ struct completion *cmp = dma_async_param;
+
+ complete(cmp);
}
/**
dma_addr_t dma_dest, dma_src;
dma_cookie_t cookie;
int err = 0;
+ struct completion cmp;
src = kzalloc(sizeof(u8) * IOAT_TEST_SIZE, GFP_KERNEL);
if (!src)
dma_chan = container_of(device->common.channels.next,
struct dma_chan,
device_node);
- if (device->common.device_alloc_chan_resources(dma_chan, NULL) < 1) {
+ if (device->common.device_alloc_chan_resources(dma_chan) < 1) {
dev_err(&device->pdev->dev,
"selftest cannot allocate chan resource\n");
err = -ENODEV;
}
async_tx_ack(tx);
+ init_completion(&cmp);
tx->callback = ioat_dma_test_callback;
- tx->callback_param = (void *)0x8086;
+ tx->callback_param = &cmp;
cookie = tx->tx_submit(tx);
if (cookie < 0) {
dev_err(&device->pdev->dev,
}
device->common.device_issue_pending(dma_chan);
- wait_for_completion_timeout(&test_completion, msecs_to_jiffies(3000));
+ wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
if (device->common.device_is_tx_complete(dma_chan, cookie, NULL, NULL)
!= DMA_SUCCESS) {
#include <linux/init.h>
#include <linux/module.h>
-#include <linux/async_tx.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/spinlock.h>
}
/* run dependent operations */
- async_tx_run_dependencies(&desc->async_tx);
+ dma_run_dependencies(&desc->async_tx);
return cookie;
}
break;
}
- BUG_ON(!seen_current);
-
if (cookie > 0) {
iop_chan->completed_cookie = cookie;
pr_debug("\tcompleted cookie %d\n", cookie);
* greater than 2x the number slots needed to satisfy a device->max_xor
* request.
* */
-static int iop_adma_alloc_chan_resources(struct dma_chan *chan,
- struct dma_client *client)
+static int iop_adma_alloc_chan_resources(struct dma_chan *chan)
{
char *hw_desc;
int idx;
dma_chan = container_of(device->common.channels.next,
struct dma_chan,
device_node);
- if (iop_adma_alloc_chan_resources(dma_chan, NULL) < 1) {
+ if (iop_adma_alloc_chan_resources(dma_chan) < 1) {
err = -ENODEV;
goto out;
}
dma_chan = container_of(device->common.channels.next,
struct dma_chan,
device_node);
- if (iop_adma_alloc_chan_resources(dma_chan, NULL) < 1) {
+ if (iop_adma_alloc_chan_resources(dma_chan) < 1) {
err = -ENODEV;
goto out;
}
struct iop_adma_device *device = platform_get_drvdata(dev);
struct dma_chan *chan, *_chan;
struct iop_adma_chan *iop_chan;
- int i;
struct iop_adma_platform_data *plat_data = dev->dev.platform_data;
dma_async_device_unregister(&device->common);
- for (i = 0; i < 3; i++) {
- unsigned int irq;
- irq = platform_get_irq(dev, i);
- free_irq(irq, device);
- }
-
dma_free_coherent(&dev->dev, plat_data->pool_size,
device->dma_desc_pool_virt, device->dma_desc_pool);
- do {
- struct resource *res;
- res = platform_get_resource(dev, IORESOURCE_MEM, 0);
- release_mem_region(res->start, res->end - res->start);
- } while (0);
-
list_for_each_entry_safe(chan, _chan, &device->common.channels,
device_node) {
iop_chan = to_iop_adma_chan(chan);
spin_lock_init(&iop_chan->lock);
INIT_LIST_HEAD(&iop_chan->chain);
INIT_LIST_HEAD(&iop_chan->all_slots);
- INIT_RCU_HEAD(&iop_chan->common.rcu);
iop_chan->common.device = dma_dev;
list_add_tail(&iop_chan->common.device_node, &dma_dev->channels);
return platform_driver_register(&iop_adma_driver);
}
-/* it's currently unsafe to unload this module */
-#if 0
static void __exit iop_adma_exit (void)
{
platform_driver_unregister(&iop_adma_driver);
return;
}
module_exit(iop_adma_exit);
-#endif
-
module_init(iop_adma_init);
MODULE_AUTHOR("Intel Corporation");
#include <linux/init.h>
#include <linux/module.h>
-#include <linux/async_tx.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/spinlock.h>
}
/* run dependent operations */
- async_tx_run_dependencies(&desc->async_tx);
+ dma_run_dependencies(&desc->async_tx);
return cookie;
}
}
/* returns the number of allocated descriptors */
-static int mv_xor_alloc_chan_resources(struct dma_chan *chan,
- struct dma_client *client)
+static int mv_xor_alloc_chan_resources(struct dma_chan *chan)
{
char *hw_desc;
int idx;
dma_chan = container_of(device->common.channels.next,
struct dma_chan,
device_node);
- if (mv_xor_alloc_chan_resources(dma_chan, NULL) < 1) {
+ if (mv_xor_alloc_chan_resources(dma_chan) < 1) {
err = -ENODEV;
goto out;
}
dma_chan = container_of(device->common.channels.next,
struct dma_chan,
device_node);
- if (mv_xor_alloc_chan_resources(dma_chan, NULL) < 1) {
+ if (mv_xor_alloc_chan_resources(dma_chan) < 1) {
err = -ENODEV;
goto out;
}
INIT_LIST_HEAD(&mv_chan->chain);
INIT_LIST_HEAD(&mv_chan->completed_slots);
INIT_LIST_HEAD(&mv_chan->all_slots);
- INIT_RCU_HEAD(&mv_chan->common.rcu);
mv_chan->common.device = dma_dev;
list_add_tail(&mv_chan->common.device_node, &dma_dev->channels);
#include <linux/dmi.h>
#include <acpi/acpi_bus.h>
-#include <acpi/acnames.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acparser.h>
-#include <acpi/acexcep.h>
-#include <acpi/acmacros.h>
-#include <acpi/actypes.h>
#define REGS_PER_GTF 7
struct taskfile_array {
cards are supported via 'MMC/SD Card support: TI Flash Media MMC/SD
Interface support (MMC_TIFM_SD)'.
- To compile this driver as a module, choose M here: the module will
+ To compile this driver as a module, choose M here: the module will
be called tifm_core.
config TIFM_7XX1
To make actual use of the device, you will have to select some
flash card format drivers, as outlined in the TIFM_CORE Help.
- To compile this driver as a module, choose M here: the module will
+ To compile this driver as a module, choose M here: the module will
be called tifm_7xx1.
-config ACER_WMI
- tristate "Acer WMI Laptop Extras (EXPERIMENTAL)"
- depends on X86
- depends on EXPERIMENTAL
- depends on ACPI
- depends on LEDS_CLASS
- depends on NEW_LEDS
- depends on BACKLIGHT_CLASS_DEVICE
- depends on SERIO_I8042
- depends on RFKILL
- select ACPI_WMI
- ---help---
- This is a driver for newer Acer (and Wistron) laptops. It adds
- wireless radio and bluetooth control, and on some laptops,
- exposes the mail LED and LCD backlight.
-
- For more information about this driver see
- <file:Documentation/laptops/acer-wmi.txt>
-
- If you have an ACPI-WMI compatible Acer/ Wistron laptop, say Y or M
- here.
-
-config ASUS_LAPTOP
- tristate "Asus Laptop Extras (EXPERIMENTAL)"
- depends on X86
- depends on ACPI
- depends on EXPERIMENTAL && !ACPI_ASUS
- depends on LEDS_CLASS
- depends on NEW_LEDS
- depends on BACKLIGHT_CLASS_DEVICE
- ---help---
- This is the new Linux driver for Asus laptops. It may also support some
- MEDION, JVC or VICTOR laptops. It makes all the extra buttons generate
- standard ACPI events that go through /proc/acpi/events. It also adds
- support for video output switching, LCD backlight control, Bluetooth and
- Wlan control, and most importantly, allows you to blink those fancy LEDs.
-
- For more information and a userspace daemon for handling the extra
- buttons see <http://acpi4asus.sf.net/>.
-
- If you have an ACPI-compatible ASUS laptop, say Y or M here.
-
-config FUJITSU_LAPTOP
- tristate "Fujitsu Laptop Extras"
- depends on X86
- depends on ACPI
- depends on INPUT
- depends on BACKLIGHT_CLASS_DEVICE
- ---help---
- This is a driver for laptops built by Fujitsu:
-
- * P2xxx/P5xxx/S6xxx/S7xxx series Lifebooks
- * Possibly other Fujitsu laptop models
- * Tested with S6410 and S7020
-
- It adds support for LCD brightness control and some hotkeys.
-
- If you have a Fujitsu laptop, say Y or M here.
-
-config FUJITSU_LAPTOP_DEBUG
- bool "Verbose debug mode for Fujitsu Laptop Extras"
- depends on FUJITSU_LAPTOP
- default n
- ---help---
- Enables extra debug output from the fujitsu extras driver, at the
- expense of a slight increase in driver size.
-
- If you are not sure, say N here.
-
-config TC1100_WMI
- tristate "HP Compaq TC1100 Tablet WMI Extras (EXPERIMENTAL)"
- depends on X86 && !X86_64
- depends on EXPERIMENTAL
- depends on ACPI
- select ACPI_WMI
- ---help---
- This is a driver for the WMI extensions (wireless and bluetooth power
- control) of the HP Compaq TC1100 tablet.
-
-config HP_WMI
- tristate "HP WMI extras"
- depends on ACPI_WMI
- depends on INPUT
- depends on RFKILL
- help
- Say Y here if you want to support WMI-based hotkeys on HP laptops and
- to read data from WMI such as docking or ambient light sensor state.
-
- To compile this driver as a module, choose M here: the module will
- be called hp-wmi.
-
config ICS932S401
tristate "Integrated Circuits ICS932S401"
depends on I2C && EXPERIMENTAL
This driver can also be built as a module. If so, the module
will be called ics932s401.
-config MSI_LAPTOP
- tristate "MSI Laptop Extras"
- depends on X86
- depends on ACPI
- depends on BACKLIGHT_CLASS_DEVICE
- ---help---
- This is a driver for laptops built by MSI (MICRO-STAR
- INTERNATIONAL):
-
- MSI MegaBook S270 (MS-1013)
- Cytron/TCM/Medion/Tchibo MD96100/SAM2000
-
- It adds support for Bluetooth, WLAN and LCD brightness control.
-
- More information about this driver is available at
- <http://0pointer.de/lennart/tchibo.html>.
-
- If you have an MSI S270 laptop, say Y or M here.
-
-config PANASONIC_LAPTOP
- tristate "Panasonic Laptop Extras"
- depends on X86 && INPUT && ACPI
- depends on BACKLIGHT_CLASS_DEVICE
- ---help---
- This driver adds support for access to backlight control and hotkeys
- on Panasonic Let's Note laptops.
-
- If you have a Panasonic Let's note laptop (such as the R1(N variant),
- R2, R3, R5, T2, W2 and Y2 series), say Y.
-
-config COMPAL_LAPTOP
- tristate "Compal Laptop Extras"
- depends on X86
- depends on ACPI
- depends on BACKLIGHT_CLASS_DEVICE
- ---help---
- This is a driver for laptops built by Compal:
-
- Compal FL90/IFL90
- Compal FL91/IFL91
- Compal FL92/JFL92
- Compal FT00/IFT00
-
- It adds support for Bluetooth, WLAN and LCD brightness control.
-
- If you have an Compal FL9x/IFL9x/FT00 laptop, say Y or M here.
-
-config SONY_LAPTOP
- tristate "Sony Laptop Extras"
- depends on X86 && ACPI
- select BACKLIGHT_CLASS_DEVICE
- depends on INPUT
- ---help---
- This mini-driver drives the SNC and SPIC devices present in the ACPI
- BIOS of the Sony Vaio laptops.
-
- It gives access to some extra laptop functionalities like Bluetooth,
- screen brightness control, Fn keys and allows powering on/off some
- devices.
-
- Read <file:Documentation/laptops/sony-laptop.txt> for more information.
-
-config SONYPI_COMPAT
- bool "Sonypi compatibility"
- depends on SONY_LAPTOP
- ---help---
- Build the sonypi driver compatibility code into the sony-laptop driver.
-
-config THINKPAD_ACPI
- tristate "ThinkPad ACPI Laptop Extras"
- depends on X86 && ACPI
- select BACKLIGHT_LCD_SUPPORT
- select BACKLIGHT_CLASS_DEVICE
- select HWMON
- select NVRAM
- select INPUT
- select NEW_LEDS
- select LEDS_CLASS
- select NET
- select RFKILL
- ---help---
- This is a driver for the IBM and Lenovo ThinkPad laptops. It adds
- support for Fn-Fx key combinations, Bluetooth control, video
- output switching, ThinkLight control, UltraBay eject and more.
- For more information about this driver see
- <file:Documentation/laptops/thinkpad-acpi.txt> and
- <http://ibm-acpi.sf.net/> .
-
- This driver was formerly known as ibm-acpi.
-
- If you have an IBM or Lenovo ThinkPad laptop, say Y or M here.
-
-config THINKPAD_ACPI_DEBUG
- bool "Verbose debug mode"
- depends on THINKPAD_ACPI
- default n
- ---help---
- Enables extra debugging information, at the expense of a slightly
- increase in driver size.
-
- If you are not sure, say N here.
-
-config THINKPAD_ACPI_DOCK
- bool "Legacy Docking Station Support"
- depends on THINKPAD_ACPI
- depends on ACPI_DOCK=n
- default n
- ---help---
- Allows the thinkpad_acpi driver to handle docking station events.
- This support was made obsolete by the generic ACPI docking station
- support (CONFIG_ACPI_DOCK). It will allow locking and removing the
- laptop from the docking station, but will not properly connect PCI
- devices.
-
- If you are not sure, say N here.
-
-config THINKPAD_ACPI_BAY
- bool "Legacy Removable Bay Support"
- depends on THINKPAD_ACPI
- default y
- ---help---
- Allows the thinkpad_acpi driver to handle removable bays. It will
- electrically disable the device in the bay, and also generate
- notifications when the bay lever is ejected or inserted.
-
- If you are not sure, say Y here.
-
-config THINKPAD_ACPI_VIDEO
- bool "Video output control support"
- depends on THINKPAD_ACPI
- default y
- ---help---
- Allows the thinkpad_acpi driver to provide an interface to control
- the various video output ports.
-
- This feature often won't work well, depending on ThinkPad model,
- display state, video output devices in use, whether there is a X
- server running, phase of the moon, and the current mood of
- Schroedinger's cat. If you can use X.org's RandR to control
- your ThinkPad's video output ports instead of this feature,
- don't think twice: do it and say N here to save some memory.
-
- If you are not sure, say Y here.
-
-config THINKPAD_ACPI_HOTKEY_POLL
- bool "Support NVRAM polling for hot keys"
- depends on THINKPAD_ACPI
- default y
- ---help---
- Some thinkpad models benefit from NVRAM polling to detect a few of
- the hot key press events. If you know your ThinkPad model does not
- need to do NVRAM polling to support any of the hot keys you use,
- unselecting this option will save about 1kB of memory.
-
- ThinkPads T40 and newer, R52 and newer, and X31 and newer are
- unlikely to need NVRAM polling in their latest BIOS versions.
-
- NVRAM polling can detect at most the following keys: ThinkPad/Access
- IBM, Zoom, Switch Display (fn+F7), ThinkLight, Volume up/down/mute,
- Brightness up/down, Display Expand (fn+F8), Hibernate (fn+F12).
-
- If you are not sure, say Y here. The driver enables polling only if
- it is strictly necessary to do so.
-
config ATMEL_SSC
tristate "Device driver for Atmel SSC peripheral"
depends on AVR32 || ARCH_AT91
If unsure, say N.
-config INTEL_MENLOW
- tristate "Thermal Management driver for Intel menlow platform"
- depends on ACPI_THERMAL
- select THERMAL
- depends on X86
- ---help---
- ACPI thermal management enhancement driver on
- Intel Menlow platform.
-
- If unsure, say N.
-
-config EEEPC_LAPTOP
- tristate "Eee PC Hotkey Driver (EXPERIMENTAL)"
- depends on X86
- depends on ACPI
- depends on BACKLIGHT_CLASS_DEVICE
- depends on HWMON
- depends on EXPERIMENTAL
- depends on RFKILL
- ---help---
- This driver supports the Fn-Fx keys on Eee PC laptops.
- It also adds the ability to switch camera/wlan on/off.
-
- If you have an Eee PC laptop, say Y or M here.
-
config ENCLOSURE_SERVICES
tristate "Enclosure Services"
default n
#
# Makefile for misc devices that really don't fit anywhere else.
#
-obj- := misc.o # Dummy rule to force built-in.o to be made
obj-$(CONFIG_IBM_ASM) += ibmasm/
obj-$(CONFIG_HDPU_FEATURES) += hdpuftrs/
-obj-$(CONFIG_ASUS_LAPTOP) += asus-laptop.o
-obj-$(CONFIG_EEEPC_LAPTOP) += eeepc-laptop.o
-obj-$(CONFIG_MSI_LAPTOP) += msi-laptop.o
-obj-$(CONFIG_COMPAL_LAPTOP) += compal-laptop.o
-obj-$(CONFIG_ACER_WMI) += acer-wmi.o
obj-$(CONFIG_ATMEL_PWM) += atmel_pwm.o
obj-$(CONFIG_ATMEL_SSC) += atmel-ssc.o
obj-$(CONFIG_ATMEL_TCLIB) += atmel_tclib.o
-obj-$(CONFIG_HP_WMI) += hp-wmi.o
obj-$(CONFIG_ICS932S401) += ics932s401.o
-obj-$(CONFIG_TC1100_WMI) += tc1100-wmi.o
obj-$(CONFIG_LKDTM) += lkdtm.o
obj-$(CONFIG_TIFM_CORE) += tifm_core.o
obj-$(CONFIG_DELL_LAPTOP) += dell-laptop.o
obj-$(CONFIG_TIFM_7XX1) += tifm_7xx1.o
obj-$(CONFIG_PHANTOM) += phantom.o
obj-$(CONFIG_SGI_IOC4) += ioc4.o
-obj-$(CONFIG_SONY_LAPTOP) += sony-laptop.o
-obj-$(CONFIG_THINKPAD_ACPI) += thinkpad_acpi.o
-obj-$(CONFIG_FUJITSU_LAPTOP) += fujitsu-laptop.o
-obj-$(CONFIG_PANASONIC_LAPTOP) += panasonic-laptop.o
obj-$(CONFIG_EEPROM_93CX6) += eeprom_93cx6.o
-obj-$(CONFIG_INTEL_MENLOW) += intel_menlow.o
obj-$(CONFIG_ENCLOSURE_SERVICES) += enclosure.o
obj-$(CONFIG_KGDB_TESTS) += kgdbts.o
obj-$(CONFIG_SGI_XP) += sgi-xp/
struct atmel_mci_dma {
#ifdef CONFIG_MMC_ATMELMCI_DMA
- struct dma_client client;
struct dma_chan *chan;
struct dma_async_tx_descriptor *data_desc;
#endif
/* If we don't have a channel, we can't do DMA */
chan = host->dma.chan;
- if (chan) {
- dma_chan_get(chan);
+ if (chan)
host->data_chan = chan;
- }
if (!chan)
return -ENODEV;
return IRQ_HANDLED;
}
-#ifdef CONFIG_MMC_ATMELMCI_DMA
-
-static inline struct atmel_mci *
-dma_client_to_atmel_mci(struct dma_client *client)
-{
- return container_of(client, struct atmel_mci, dma.client);
-}
-
-static enum dma_state_client atmci_dma_event(struct dma_client *client,
- struct dma_chan *chan, enum dma_state state)
-{
- struct atmel_mci *host;
- enum dma_state_client ret = DMA_NAK;
-
- host = dma_client_to_atmel_mci(client);
-
- switch (state) {
- case DMA_RESOURCE_AVAILABLE:
- spin_lock_bh(&host->lock);
- if (!host->dma.chan) {
- host->dma.chan = chan;
- ret = DMA_ACK;
- }
- spin_unlock_bh(&host->lock);
-
- if (ret == DMA_ACK)
- dev_info(&host->pdev->dev,
- "Using %s for DMA transfers\n",
- chan->dev.bus_id);
- break;
-
- case DMA_RESOURCE_REMOVED:
- spin_lock_bh(&host->lock);
- if (host->dma.chan == chan) {
- host->dma.chan = NULL;
- ret = DMA_ACK;
- }
- spin_unlock_bh(&host->lock);
-
- if (ret == DMA_ACK)
- dev_info(&host->pdev->dev,
- "Lost %s, falling back to PIO\n",
- chan->dev.bus_id);
- break;
-
- default:
- break;
- }
-
-
- return ret;
-}
-#endif /* CONFIG_MMC_ATMELMCI_DMA */
-
static int __init atmci_init_slot(struct atmel_mci *host,
struct mci_slot_pdata *slot_data, unsigned int id,
u32 sdc_reg)
mmc_free_host(slot->mmc);
}
+#ifdef CONFIG_MMC_ATMELMCI_DMA
+static bool filter(struct dma_chan *chan, void *slave)
+{
+ struct dw_dma_slave *dws = slave;
+
+ if (dws->dma_dev == chan->device->dev)
+ return true;
+ else
+ return false;
+}
+#endif
+
static int __init atmci_probe(struct platform_device *pdev)
{
struct mci_platform_data *pdata;
goto err_request_irq;
#ifdef CONFIG_MMC_ATMELMCI_DMA
- if (pdata->dma_slave) {
- struct dma_slave *slave = pdata->dma_slave;
+ if (pdata->dma_slave.dma_dev) {
+ struct dw_dma_slave *dws = &pdata->dma_slave;
+ dma_cap_mask_t mask;
- slave->tx_reg = regs->start + MCI_TDR;
- slave->rx_reg = regs->start + MCI_RDR;
+ dws->tx_reg = regs->start + MCI_TDR;
+ dws->rx_reg = regs->start + MCI_RDR;
/* Try to grab a DMA channel */
- host->dma.client.event_callback = atmci_dma_event;
- dma_cap_set(DMA_SLAVE, host->dma.client.cap_mask);
- host->dma.client.slave = slave;
-
- dma_async_client_register(&host->dma.client);
- dma_async_client_chan_request(&host->dma.client);
- } else {
- dev_notice(&pdev->dev, "DMA not available, using PIO\n");
+ dma_cap_zero(mask);
+ dma_cap_set(DMA_SLAVE, mask);
+ host->dma.chan = dma_request_channel(mask, filter, dws);
}
+ if (!host->dma.chan)
+ dev_notice(&pdev->dev, "DMA not available, using PIO\n");
#endif /* CONFIG_MMC_ATMELMCI_DMA */
platform_set_drvdata(pdev, host);
err_init_slot:
#ifdef CONFIG_MMC_ATMELMCI_DMA
- if (pdata->dma_slave)
- dma_async_client_unregister(&host->dma.client);
+ if (host->dma.chan)
+ dma_release_channel(host->dma.chan);
#endif
free_irq(irq, host);
err_request_irq:
clk_disable(host->mck);
#ifdef CONFIG_MMC_ATMELMCI_DMA
- if (host->dma.client.slave)
- dma_async_client_unregister(&host->dma.client);
+ if (host->dma.chan)
+ dma_release_channel(host->dma.chan);
#endif
free_irq(platform_get_irq(pdev, 0), host);
platform_driver_unregister(&atmci_driver);
}
-module_init(atmci_init);
+late_initcall(atmci_init); /* try to load after dma driver when built-in */
module_exit(atmci_exit);
MODULE_DESCRIPTION("Atmel Multimedia Card Interface driver");
devices. Partitioning on NFTL 'devices' is a different - that's the
'normal' form of partitioning used on a block device.
+config MTD_TESTS
+ tristate "MTD tests support"
+ depends on m
+ help
+ This option includes various MTD tests into compilation. The tests
+ should normally be compiled as kernel modules. The modules perform
+ various checks and verifications when loaded.
+
config MTD_REDBOOT_PARTS
tristate "RedBoot partition table parsing"
depends on MTD_PARTITIONS
source "drivers/mtd/onenand/Kconfig"
+source "drivers/mtd/lpddr/Kconfig"
+
source "drivers/mtd/ubi/Kconfig"
endif # MTD
nftl-objs := nftlcore.o nftlmount.o
inftl-objs := inftlcore.o inftlmount.o
-obj-y += chips/ maps/ devices/ nand/ onenand/
+obj-y += chips/ lpddr/ maps/ devices/ nand/ onenand/ tests/
obj-$(CONFIG_MTD_UBI) += ubi/
static int cfi_intelext_writev(struct mtd_info *, const struct kvec *, unsigned long, loff_t, size_t *);
static int cfi_intelext_erase_varsize(struct mtd_info *, struct erase_info *);
static void cfi_intelext_sync (struct mtd_info *);
-static int cfi_intelext_lock(struct mtd_info *mtd, loff_t ofs, size_t len);
-static int cfi_intelext_unlock(struct mtd_info *mtd, loff_t ofs, size_t len);
+static int cfi_intelext_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
+static int cfi_intelext_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
#ifdef CONFIG_MTD_OTP
static int cfi_intelext_read_fact_prot_reg (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
static int cfi_intelext_read_user_prot_reg (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
}
for (i=0; i<mtd->numeraseregions;i++){
- printk(KERN_DEBUG "erase region %d: offset=0x%x,size=0x%x,blocks=%d\n",
- i,mtd->eraseregions[i].offset,
+ printk(KERN_DEBUG "erase region %d: offset=0x%llx,size=0x%x,blocks=%d\n",
+ i,(unsigned long long)mtd->eraseregions[i].offset,
mtd->eraseregions[i].erasesize,
mtd->eraseregions[i].numblocks);
}
return ret;
}
-static int cfi_intelext_lock(struct mtd_info *mtd, loff_t ofs, size_t len)
+static int cfi_intelext_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
int ret;
return ret;
}
-static int cfi_intelext_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
+static int cfi_intelext_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
int ret;
static void put_chip(struct map_info *map, struct flchip *chip, unsigned long adr);
#include "fwh_lock.h"
-static int cfi_atmel_lock(struct mtd_info *mtd, loff_t ofs, size_t len);
-static int cfi_atmel_unlock(struct mtd_info *mtd, loff_t ofs, size_t len);
+static int cfi_atmel_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
+static int cfi_atmel_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
static struct mtd_chip_driver cfi_amdstd_chipdrv = {
.probe = NULL, /* Not usable directly */
};
+static void cfi_fixup_major_minor(struct cfi_private *cfi,
+ struct cfi_pri_amdstd *extp)
+{
+ if (cfi->mfr == CFI_MFR_SAMSUNG && cfi->id == 0x257e &&
+ extp->MajorVersion == '0')
+ extp->MajorVersion = '1';
+}
+
struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary)
{
struct cfi_private *cfi = map->fldrv_priv;
return NULL;
}
+ cfi_fixup_major_minor(cfi, extp);
+
if (extp->MajorVersion != '1' ||
(extp->MinorVersion < '0' || extp->MinorVersion > '4')) {
printk(KERN_ERR " Unknown Amd/Fujitsu Extended Query "
return ret;
}
-static int cfi_atmel_lock(struct mtd_info *mtd, loff_t ofs, size_t len)
+static int cfi_atmel_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
return cfi_varsize_frob(mtd, do_atmel_lock, ofs, len, NULL);
}
-static int cfi_atmel_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
+static int cfi_atmel_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
return cfi_varsize_frob(mtd, do_atmel_unlock, ofs, len, NULL);
}
unsigned long count, loff_t to, size_t *retlen);
static int cfi_staa_erase_varsize(struct mtd_info *, struct erase_info *);
static void cfi_staa_sync (struct mtd_info *);
-static int cfi_staa_lock(struct mtd_info *mtd, loff_t ofs, size_t len);
-static int cfi_staa_unlock(struct mtd_info *mtd, loff_t ofs, size_t len);
+static int cfi_staa_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
+static int cfi_staa_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
static int cfi_staa_suspend (struct mtd_info *);
static void cfi_staa_resume (struct mtd_info *);
}
for (i=0; i<mtd->numeraseregions;i++){
- printk(KERN_DEBUG "%d: offset=0x%x,size=0x%x,blocks=%d\n",
- i,mtd->eraseregions[i].offset,
+ printk(KERN_DEBUG "%d: offset=0x%llx,size=0x%x,blocks=%d\n",
+ i, (unsigned long long)mtd->eraseregions[i].offset,
mtd->eraseregions[i].erasesize,
mtd->eraseregions[i].numblocks);
}
adr += regions[i].erasesize;
len -= regions[i].erasesize;
- if (adr % (1<< cfi->chipshift) == ((regions[i].offset + (regions[i].erasesize * regions[i].numblocks)) %( 1<< cfi->chipshift)))
+ if (adr % (1<< cfi->chipshift) == (((unsigned long)regions[i].offset + (regions[i].erasesize * regions[i].numblocks)) %( 1<< cfi->chipshift)))
i++;
if (adr >> cfi->chipshift) {
spin_unlock_bh(chip->mutex);
return 0;
}
-static int cfi_staa_lock(struct mtd_info *mtd, loff_t ofs, size_t len)
+static int cfi_staa_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
struct map_info *map = mtd->priv;
struct cfi_private *cfi = map->fldrv_priv;
spin_unlock_bh(chip->mutex);
return 0;
}
-static int cfi_staa_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
+static int cfi_staa_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
struct map_info *map = mtd->priv;
struct cfi_private *cfi = map->fldrv_priv;
}
-static int fwh_lock_varsize(struct mtd_info *mtd, loff_t ofs, size_t len)
+static int fwh_lock_varsize(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
int ret;
}
-static int fwh_unlock_varsize(struct mtd_info *mtd, loff_t ofs, size_t len)
+static int fwh_unlock_varsize(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
int ret;
};
#endif
-int __init lart_flash_init (void)
+static int __init lart_flash_init (void)
{
int result;
memset (&mtd,0,sizeof (mtd));
return (result);
}
-void __exit lart_flash_exit (void)
+static void __exit lart_flash_exit (void)
{
#ifndef HAVE_PARTITIONS
del_mtd_device (&mtd);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Abraham vd Merwe <abraham@2d3d.co.za>");
MODULE_DESCRIPTION("MTD driver for Intel 28F160F3 on LART board");
-
-
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/mutex.h>
+#include <linux/math64.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
*/
static int erase_chip(struct m25p *flash)
{
- DEBUG(MTD_DEBUG_LEVEL3, "%s: %s %dKiB\n",
- dev_name(&flash->spi->dev), __func__,
- flash->mtd.size / 1024);
+ DEBUG(MTD_DEBUG_LEVEL3, "%s: %s %lldKiB\n",
+ dev_name(&flash->spi->dev), __func__,
+ (long long)(flash->mtd.size >> 10));
/* Wait until finished previous write command. */
if (wait_till_ready(flash))
{
struct m25p *flash = mtd_to_m25p(mtd);
u32 addr,len;
+ uint32_t rem;
- DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %d\n",
- dev_name(&flash->spi->dev), __func__, "at",
- (u32)instr->addr, instr->len);
+ DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%llx, len %lld\n",
+ dev_name(&flash->spi->dev), __func__, "at",
+ (long long)instr->addr, (long long)instr->len);
/* sanity checks */
if (instr->addr + instr->len > flash->mtd.size)
return -EINVAL;
- if ((instr->addr % mtd->erasesize) != 0
- || (instr->len % mtd->erasesize) != 0) {
+ div_u64_rem(instr->len, mtd->erasesize, &rem);
+ if (rem)
return -EINVAL;
- }
addr = instr->addr;
len = instr->len;
flash->mtd.erasesize = info->sector_size;
}
- dev_info(&spi->dev, "%s (%d Kbytes)\n", info->name,
- flash->mtd.size / 1024);
+ dev_info(&spi->dev, "%s (%lld Kbytes)\n", info->name,
+ (long long)flash->mtd.size >> 10);
DEBUG(MTD_DEBUG_LEVEL2,
- "mtd .name = %s, .size = 0x%.8x (%uMiB) "
+ "mtd .name = %s, .size = 0x%llx (%lldMiB) "
".erasesize = 0x%.8x (%uKiB) .numeraseregions = %d\n",
flash->mtd.name,
- flash->mtd.size, flash->mtd.size / (1024*1024),
+ (long long)flash->mtd.size, (long long)(flash->mtd.size >> 20),
flash->mtd.erasesize, flash->mtd.erasesize / 1024,
flash->mtd.numeraseregions);
if (flash->mtd.numeraseregions)
for (i = 0; i < flash->mtd.numeraseregions; i++)
DEBUG(MTD_DEBUG_LEVEL2,
- "mtd.eraseregions[%d] = { .offset = 0x%.8x, "
+ "mtd.eraseregions[%d] = { .offset = 0x%llx, "
".erasesize = 0x%.8x (%uKiB), "
".numblocks = %d }\n",
- i, flash->mtd.eraseregions[i].offset,
+ i, (long long)flash->mtd.eraseregions[i].offset,
flash->mtd.eraseregions[i].erasesize,
flash->mtd.eraseregions[i].erasesize / 1024,
flash->mtd.eraseregions[i].numblocks);
if (nr_parts > 0) {
for (i = 0; i < nr_parts; i++) {
DEBUG(MTD_DEBUG_LEVEL2, "partitions[%d] = "
- "{.name = %s, .offset = 0x%.8x, "
- ".size = 0x%.8x (%uKiB) }\n",
+ "{.name = %s, .offset = 0x%llx, "
+ ".size = 0x%llx (%lldKiB) }\n",
i, parts[i].name,
- parts[i].offset,
- parts[i].size,
- parts[i].size / 1024);
+ (long long)parts[i].offset,
+ (long long)parts[i].size,
+ (long long)(parts[i].size >> 10));
}
flash->partitioned = 1;
return add_mtd_partitions(&flash->mtd, parts, nr_parts);
#include <linux/device.h>
#include <linux/mutex.h>
#include <linux/err.h>
+#include <linux/math64.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
struct spi_message msg;
unsigned blocksize = priv->page_size << 3;
uint8_t *command;
+ uint32_t rem;
- DEBUG(MTD_DEBUG_LEVEL2, "%s: erase addr=0x%x len 0x%x\n",
- dev_name(&spi->dev),
- instr->addr, instr->len);
+ DEBUG(MTD_DEBUG_LEVEL2, "%s: erase addr=0x%llx len 0x%llx\n",
+ dev_name(&spi->dev), (long long)instr->addr,
+ (long long)instr->len);
/* Sanity checks */
- if ((instr->addr + instr->len) > mtd->size
- || (instr->len % priv->page_size) != 0
- || (instr->addr % priv->page_size) != 0)
+ if (instr->addr + instr->len > mtd->size)
+ return -EINVAL;
+ div_u64_rem(instr->len, priv->page_size, &rem);
+ if (rem)
+ return -EINVAL;
+ div_u64_rem(instr->addr, priv->page_size, &rem);
+ if (rem)
return -EINVAL;
spi_message_init(&msg);
/* Calculate flash page address; use block erase (for speed) if
* we're at a block boundary and need to erase the whole block.
*/
- pageaddr = instr->addr / priv->page_size;
+ pageaddr = div_u64(instr->len, priv->page_size);
do_block = (pageaddr & 0x7) == 0 && instr->len >= blocksize;
pageaddr = pageaddr << priv->page_offset;
if (revision >= 'c')
otp_tag = otp_setup(device, revision);
- dev_info(&spi->dev, "%s (%d KBytes) pagesize %d bytes%s\n",
- name, DIV_ROUND_UP(device->size, 1024),
+ dev_info(&spi->dev, "%s (%lld KBytes) pagesize %d bytes%s\n",
+ name, (long long)((device->size + 1023) >> 10),
pagesize, otp_tag);
dev_set_drvdata(&spi->dev, priv);
/* Each memory region corresponds to a minor device */
typedef struct partition_t {
struct mtd_blktrans_dev mbd;
- u_int32_t state;
- u_int32_t *VirtualBlockMap;
- u_int32_t *VirtualPageMap;
- u_int32_t FreeTotal;
+ uint32_t state;
+ uint32_t *VirtualBlockMap;
+ uint32_t *VirtualPageMap;
+ uint32_t FreeTotal;
struct eun_info_t {
- u_int32_t Offset;
- u_int32_t EraseCount;
- u_int32_t Free;
- u_int32_t Deleted;
+ uint32_t Offset;
+ uint32_t EraseCount;
+ uint32_t Free;
+ uint32_t Deleted;
} *EUNInfo;
struct xfer_info_t {
- u_int32_t Offset;
- u_int32_t EraseCount;
- u_int16_t state;
+ uint32_t Offset;
+ uint32_t EraseCount;
+ uint16_t state;
} *XferInfo;
- u_int16_t bam_index;
- u_int32_t *bam_cache;
- u_int16_t DataUnits;
- u_int32_t BlocksPerUnit;
+ uint16_t bam_index;
+ uint32_t *bam_cache;
+ uint16_t DataUnits;
+ uint32_t BlocksPerUnit;
erase_unit_header_t header;
} partition_t;
static int build_maps(partition_t *part)
{
erase_unit_header_t header;
- u_int16_t xvalid, xtrans, i;
- u_int blocks, j;
+ uint16_t xvalid, xtrans, i;
+ unsigned blocks, j;
int hdr_ok, ret = -1;
ssize_t retval;
loff_t offset;
/* Set up virtual page map */
blocks = le32_to_cpu(header.FormattedSize) >> header.BlockSize;
- part->VirtualBlockMap = vmalloc(blocks * sizeof(u_int32_t));
+ part->VirtualBlockMap = vmalloc(blocks * sizeof(uint32_t));
if (!part->VirtualBlockMap)
goto out_XferInfo;
- memset(part->VirtualBlockMap, 0xff, blocks * sizeof(u_int32_t));
+ memset(part->VirtualBlockMap, 0xff, blocks * sizeof(uint32_t));
part->BlocksPerUnit = (1 << header.EraseUnitSize) >> header.BlockSize;
- part->bam_cache = kmalloc(part->BlocksPerUnit * sizeof(u_int32_t),
+ part->bam_cache = kmalloc(part->BlocksPerUnit * sizeof(uint32_t),
GFP_KERNEL);
if (!part->bam_cache)
goto out_VirtualBlockMap;
offset = part->EUNInfo[i].Offset + le32_to_cpu(header.BAMOffset);
ret = part->mbd.mtd->read(part->mbd.mtd, offset,
- part->BlocksPerUnit * sizeof(u_int32_t), &retval,
+ part->BlocksPerUnit * sizeof(uint32_t), &retval,
(unsigned char *)part->bam_cache);
if (ret)
======================================================================*/
static int erase_xfer(partition_t *part,
- u_int16_t xfernum)
+ uint16_t xfernum)
{
int ret;
struct xfer_info_t *xfer;
erase_unit_header_t header;
struct xfer_info_t *xfer;
int nbam, ret;
- u_int32_t ctl;
+ uint32_t ctl;
ssize_t retlen;
loff_t offset;
}
/* Write the BAM stub */
- nbam = (part->BlocksPerUnit * sizeof(u_int32_t) +
+ nbam = (part->BlocksPerUnit * sizeof(uint32_t) +
le32_to_cpu(part->header.BAMOffset) + SECTOR_SIZE - 1) / SECTOR_SIZE;
offset = xfer->Offset + le32_to_cpu(part->header.BAMOffset);
ctl = cpu_to_le32(BLOCK_CONTROL);
- for (i = 0; i < nbam; i++, offset += sizeof(u_int32_t)) {
+ for (i = 0; i < nbam; i++, offset += sizeof(uint32_t)) {
- ret = part->mbd.mtd->write(part->mbd.mtd, offset, sizeof(u_int32_t),
+ ret = part->mbd.mtd->write(part->mbd.mtd, offset, sizeof(uint32_t),
&retlen, (u_char *)&ctl);
if (ret)
======================================================================*/
-static int copy_erase_unit(partition_t *part, u_int16_t srcunit,
- u_int16_t xferunit)
+static int copy_erase_unit(partition_t *part, uint16_t srcunit,
+ uint16_t xferunit)
{
u_char buf[SECTOR_SIZE];
struct eun_info_t *eun;
struct xfer_info_t *xfer;
- u_int32_t src, dest, free, i;
- u_int16_t unit;
+ uint32_t src, dest, free, i;
+ uint16_t unit;
int ret;
ssize_t retlen;
loff_t offset;
- u_int16_t srcunitswap = cpu_to_le16(srcunit);
+ uint16_t srcunitswap = cpu_to_le16(srcunit);
eun = &part->EUNInfo[srcunit];
xfer = &part->XferInfo[xferunit];
offset = eun->Offset + le32_to_cpu(part->header.BAMOffset);
ret = part->mbd.mtd->read(part->mbd.mtd, offset,
- part->BlocksPerUnit * sizeof(u_int32_t),
+ part->BlocksPerUnit * sizeof(uint32_t),
&retlen, (u_char *) (part->bam_cache));
/* mark the cache bad, in case we get an error later */
offset = xfer->Offset + 20; /* Bad! */
unit = cpu_to_le16(0x7fff);
- ret = part->mbd.mtd->write(part->mbd.mtd, offset, sizeof(u_int16_t),
+ ret = part->mbd.mtd->write(part->mbd.mtd, offset, sizeof(uint16_t),
&retlen, (u_char *) &unit);
if (ret) {
/* All clear? Then update the LogicalEUN again */
- ret = part->mbd.mtd->write(part->mbd.mtd, xfer->Offset + 20, sizeof(u_int16_t),
+ ret = part->mbd.mtd->write(part->mbd.mtd, xfer->Offset + 20, sizeof(uint16_t),
&retlen, (u_char *)&srcunitswap);
if (ret) {
static int reclaim_block(partition_t *part)
{
- u_int16_t i, eun, xfer;
- u_int32_t best;
+ uint16_t i, eun, xfer;
+ uint32_t best;
int queued, ret;
DEBUG(0, "ftl_cs: reclaiming space...\n");
}
#endif
-static u_int32_t find_free(partition_t *part)
+static uint32_t find_free(partition_t *part)
{
- u_int16_t stop, eun;
- u_int32_t blk;
+ uint16_t stop, eun;
+ uint32_t blk;
size_t retlen;
int ret;
ret = part->mbd.mtd->read(part->mbd.mtd,
part->EUNInfo[eun].Offset + le32_to_cpu(part->header.BAMOffset),
- part->BlocksPerUnit * sizeof(u_int32_t),
+ part->BlocksPerUnit * sizeof(uint32_t),
&retlen, (u_char *) (part->bam_cache));
if (ret) {
static int ftl_read(partition_t *part, caddr_t buffer,
u_long sector, u_long nblocks)
{
- u_int32_t log_addr, bsize;
+ uint32_t log_addr, bsize;
u_long i;
int ret;
size_t offset, retlen;
======================================================================*/
-static int set_bam_entry(partition_t *part, u_int32_t log_addr,
- u_int32_t virt_addr)
+static int set_bam_entry(partition_t *part, uint32_t log_addr,
+ uint32_t virt_addr)
{
- u_int32_t bsize, blk, le_virt_addr;
+ uint32_t bsize, blk, le_virt_addr;
#ifdef PSYCHO_DEBUG
- u_int32_t old_addr;
+ uint32_t old_addr;
#endif
- u_int16_t eun;
+ uint16_t eun;
int ret;
size_t retlen, offset;
bsize = 1 << part->header.EraseUnitSize;
eun = log_addr / bsize;
blk = (log_addr % bsize) / SECTOR_SIZE;
- offset = (part->EUNInfo[eun].Offset + blk * sizeof(u_int32_t) +
+ offset = (part->EUNInfo[eun].Offset + blk * sizeof(uint32_t) +
le32_to_cpu(part->header.BAMOffset));
#ifdef PSYCHO_DEBUG
- ret = part->mbd.mtd->read(part->mbd.mtd, offset, sizeof(u_int32_t),
+ ret = part->mbd.mtd->read(part->mbd.mtd, offset, sizeof(uint32_t),
&retlen, (u_char *)&old_addr);
if (ret) {
printk(KERN_WARNING"ftl: Error reading old_addr in set_bam_entry: %d\n",ret);
#endif
part->bam_cache[blk] = le_virt_addr;
}
- ret = part->mbd.mtd->write(part->mbd.mtd, offset, sizeof(u_int32_t),
+ ret = part->mbd.mtd->write(part->mbd.mtd, offset, sizeof(uint32_t),
&retlen, (u_char *)&le_virt_addr);
if (ret) {
static int ftl_write(partition_t *part, caddr_t buffer,
u_long sector, u_long nblocks)
{
- u_int32_t bsize, log_addr, virt_addr, old_addr, blk;
+ uint32_t bsize, log_addr, virt_addr, old_addr, blk;
u_long i;
int ret;
size_t retlen, offset;
struct INFTLrecord *inftl;
unsigned long temp;
- if (mtd->type != MTD_NANDFLASH)
+ if (mtd->type != MTD_NANDFLASH || mtd->size > UINT_MAX)
return;
/* OK, this is moderately ugly. But probably safe. Alternatives? */
if (memcmp(mtd->name, "DiskOnChip", 10))
* otherwise.
*/
inftl->EraseSize = inftl->mbd.mtd->erasesize;
- inftl->nb_blocks = inftl->mbd.mtd->size / inftl->EraseSize;
+ inftl->nb_blocks = (u32)inftl->mbd.mtd->size / inftl->EraseSize;
inftl->MediaUnit = BLOCK_NIL;
mh->BlockMultiplierBits);
inftl->EraseSize = inftl->mbd.mtd->erasesize <<
mh->BlockMultiplierBits;
- inftl->nb_blocks = inftl->mbd.mtd->size / inftl->EraseSize;
+ inftl->nb_blocks = (u32)inftl->mbd.mtd->size / inftl->EraseSize;
block >>= mh->BlockMultiplierBits;
}
--- /dev/null
+# drivers/mtd/chips/Kconfig
+
+menu "LPDDR flash memory drivers"
+ depends on MTD!=n
+
+config MTD_LPDDR
+ tristate "Support for LPDDR flash chips"
+ select MTD_QINFO_PROBE
+ help
+ This option enables support of LPDDR (Low power double data rate)
+ flash chips. Synonymous with Mobile-DDR. It is a new standard for
+ DDR memories, intended for battery-operated systems.
+
+config MTD_QINFO_PROBE
+ tristate "Detect flash chips by QINFO probe"
+ help
+ Device Information for LPDDR chips is offered through the Overlay
+ Window QINFO interface, permits software to be used for entire
+ families of devices. This serves similar purpose of CFI on legacy
+ Flash products
+endmenu
+
--- /dev/null
+#
+# linux/drivers/mtd/lpddr/Makefile
+#
+
+obj-$(CONFIG_MTD_QINFO_PROBE) += qinfo_probe.o
+obj-$(CONFIG_MTD_LPDDR) += lpddr_cmds.o
--- /dev/null
+/*
+ * LPDDR flash memory device operations. This module provides read, write,
+ * erase, lock/unlock support for LPDDR flash memories
+ * (C) 2008 Korolev Alexey <akorolev@infradead.org>
+ * (C) 2008 Vasiliy Leonenko <vasiliy.leonenko@gmail.com>
+ * Many thanks to Roman Borisov for intial enabling
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ * TODO:
+ * Implement VPP management
+ * Implement XIP support
+ * Implement OTP support
+ */
+#include <linux/mtd/pfow.h>
+#include <linux/mtd/qinfo.h>
+
+static int lpddr_read(struct mtd_info *mtd, loff_t adr, size_t len,
+ size_t *retlen, u_char *buf);
+static int lpddr_write_buffers(struct mtd_info *mtd, loff_t to,
+ size_t len, size_t *retlen, const u_char *buf);
+static int lpddr_writev(struct mtd_info *mtd, const struct kvec *vecs,
+ unsigned long count, loff_t to, size_t *retlen);
+static int lpddr_erase(struct mtd_info *mtd, struct erase_info *instr);
+static int lpddr_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
+static int lpddr_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
+static int lpddr_point(struct mtd_info *mtd, loff_t adr, size_t len,
+ size_t *retlen, void **mtdbuf, resource_size_t *phys);
+static void lpddr_unpoint(struct mtd_info *mtd, loff_t adr, size_t len);
+static int get_chip(struct map_info *map, struct flchip *chip, int mode);
+static int chip_ready(struct map_info *map, struct flchip *chip, int mode);
+static void put_chip(struct map_info *map, struct flchip *chip);
+
+struct mtd_info *lpddr_cmdset(struct map_info *map)
+{
+ struct lpddr_private *lpddr = map->fldrv_priv;
+ struct flchip_shared *shared;
+ struct flchip *chip;
+ struct mtd_info *mtd;
+ int numchips;
+ int i, j;
+
+ mtd = kzalloc(sizeof(*mtd), GFP_KERNEL);
+ if (!mtd) {
+ printk(KERN_ERR "Failed to allocate memory for MTD device\n");
+ return NULL;
+ }
+ mtd->priv = map;
+ mtd->type = MTD_NORFLASH;
+
+ /* Fill in the default mtd operations */
+ mtd->read = lpddr_read;
+ mtd->type = MTD_NORFLASH;
+ mtd->flags = MTD_CAP_NORFLASH;
+ mtd->flags &= ~MTD_BIT_WRITEABLE;
+ mtd->erase = lpddr_erase;
+ mtd->write = lpddr_write_buffers;
+ mtd->writev = lpddr_writev;
+ mtd->read_oob = NULL;
+ mtd->write_oob = NULL;
+ mtd->sync = NULL;
+ mtd->lock = lpddr_lock;
+ mtd->unlock = lpddr_unlock;
+ mtd->suspend = NULL;
+ mtd->resume = NULL;
+ if (map_is_linear(map)) {
+ mtd->point = lpddr_point;
+ mtd->unpoint = lpddr_unpoint;
+ }
+ mtd->block_isbad = NULL;
+ mtd->block_markbad = NULL;
+ mtd->size = 1 << lpddr->qinfo->DevSizeShift;
+ mtd->erasesize = 1 << lpddr->qinfo->UniformBlockSizeShift;
+ mtd->writesize = 1 << lpddr->qinfo->BufSizeShift;
+
+ shared = kmalloc(sizeof(struct flchip_shared) * lpddr->numchips,
+ GFP_KERNEL);
+ if (!shared) {
+ kfree(lpddr);
+ kfree(mtd);
+ return NULL;
+ }
+
+ chip = &lpddr->chips[0];
+ numchips = lpddr->numchips / lpddr->qinfo->HWPartsNum;
+ for (i = 0; i < numchips; i++) {
+ shared[i].writing = shared[i].erasing = NULL;
+ spin_lock_init(&shared[i].lock);
+ for (j = 0; j < lpddr->qinfo->HWPartsNum; j++) {
+ *chip = lpddr->chips[i];
+ chip->start += j << lpddr->chipshift;
+ chip->oldstate = chip->state = FL_READY;
+ chip->priv = &shared[i];
+ /* those should be reset too since
+ they create memory references. */
+ init_waitqueue_head(&chip->wq);
+ spin_lock_init(&chip->_spinlock);
+ chip->mutex = &chip->_spinlock;
+ chip++;
+ }
+ }
+
+ return mtd;
+}
+EXPORT_SYMBOL(lpddr_cmdset);
+
+static int wait_for_ready(struct map_info *map, struct flchip *chip,
+ unsigned int chip_op_time)
+{
+ unsigned int timeo, reset_timeo, sleep_time;
+ unsigned int dsr;
+ flstate_t chip_state = chip->state;
+ int ret = 0;
+
+ /* set our timeout to 8 times the expected delay */
+ timeo = chip_op_time * 8;
+ if (!timeo)
+ timeo = 500000;
+ reset_timeo = timeo;
+ sleep_time = chip_op_time / 2;
+
+ for (;;) {
+ dsr = CMDVAL(map_read(map, map->pfow_base + PFOW_DSR));
+ if (dsr & DSR_READY_STATUS)
+ break;
+ if (!timeo) {
+ printk(KERN_ERR "%s: Flash timeout error state %d \n",
+ map->name, chip_state);
+ ret = -ETIME;
+ break;
+ }
+
+ /* OK Still waiting. Drop the lock, wait a while and retry. */
+ spin_unlock(chip->mutex);
+ if (sleep_time >= 1000000/HZ) {
+ /*
+ * Half of the normal delay still remaining
+ * can be performed with a sleeping delay instead
+ * of busy waiting.
+ */
+ msleep(sleep_time/1000);
+ timeo -= sleep_time;
+ sleep_time = 1000000/HZ;
+ } else {
+ udelay(1);
+ cond_resched();
+ timeo--;
+ }
+ spin_lock(chip->mutex);
+
+ while (chip->state != chip_state) {
+ /* Someone's suspended the operation: sleep */
+ DECLARE_WAITQUEUE(wait, current);
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ add_wait_queue(&chip->wq, &wait);
+ spin_unlock(chip->mutex);
+ schedule();
+ remove_wait_queue(&chip->wq, &wait);
+ spin_lock(chip->mutex);
+ }
+ if (chip->erase_suspended || chip->write_suspended) {
+ /* Suspend has occured while sleep: reset timeout */
+ timeo = reset_timeo;
+ chip->erase_suspended = chip->write_suspended = 0;
+ }
+ }
+ /* check status for errors */
+ if (dsr & DSR_ERR) {
+ /* Clear DSR*/
+ map_write(map, CMD(~(DSR_ERR)), map->pfow_base + PFOW_DSR);
+ printk(KERN_WARNING"%s: Bad status on wait: 0x%x \n",
+ map->name, dsr);
+ print_drs_error(dsr);
+ ret = -EIO;
+ }
+ chip->state = FL_READY;
+ return ret;
+}
+
+static int get_chip(struct map_info *map, struct flchip *chip, int mode)
+{
+ int ret;
+ DECLARE_WAITQUEUE(wait, current);
+
+ retry:
+ if (chip->priv && (mode == FL_WRITING || mode == FL_ERASING)
+ && chip->state != FL_SYNCING) {
+ /*
+ * OK. We have possibility for contension on the write/erase
+ * operations which are global to the real chip and not per
+ * partition. So let's fight it over in the partition which
+ * currently has authority on the operation.
+ *
+ * The rules are as follows:
+ *
+ * - any write operation must own shared->writing.
+ *
+ * - any erase operation must own _both_ shared->writing and
+ * shared->erasing.
+ *
+ * - contension arbitration is handled in the owner's context.
+ *
+ * The 'shared' struct can be read and/or written only when
+ * its lock is taken.
+ */
+ struct flchip_shared *shared = chip->priv;
+ struct flchip *contender;
+ spin_lock(&shared->lock);
+ contender = shared->writing;
+ if (contender && contender != chip) {
+ /*
+ * The engine to perform desired operation on this
+ * partition is already in use by someone else.
+ * Let's fight over it in the context of the chip
+ * currently using it. If it is possible to suspend,
+ * that other partition will do just that, otherwise
+ * it'll happily send us to sleep. In any case, when
+ * get_chip returns success we're clear to go ahead.
+ */
+ ret = spin_trylock(contender->mutex);
+ spin_unlock(&shared->lock);
+ if (!ret)
+ goto retry;
+ spin_unlock(chip->mutex);
+ ret = chip_ready(map, contender, mode);
+ spin_lock(chip->mutex);
+
+ if (ret == -EAGAIN) {
+ spin_unlock(contender->mutex);
+ goto retry;
+ }
+ if (ret) {
+ spin_unlock(contender->mutex);
+ return ret;
+ }
+ spin_lock(&shared->lock);
+
+ /* We should not own chip if it is already in FL_SYNCING
+ * state. Put contender and retry. */
+ if (chip->state == FL_SYNCING) {
+ put_chip(map, contender);
+ spin_unlock(contender->mutex);
+ goto retry;
+ }
+ spin_unlock(contender->mutex);
+ }
+
+ /* Check if we have suspended erase on this chip.
+ Must sleep in such a case. */
+ if (mode == FL_ERASING && shared->erasing
+ && shared->erasing->oldstate == FL_ERASING) {
+ spin_unlock(&shared->lock);
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ add_wait_queue(&chip->wq, &wait);
+ spin_unlock(chip->mutex);
+ schedule();
+ remove_wait_queue(&chip->wq, &wait);
+ spin_lock(chip->mutex);
+ goto retry;
+ }
+
+ /* We now own it */
+ shared->writing = chip;
+ if (mode == FL_ERASING)
+ shared->erasing = chip;
+ spin_unlock(&shared->lock);
+ }
+
+ ret = chip_ready(map, chip, mode);
+ if (ret == -EAGAIN)
+ goto retry;
+
+ return ret;
+}
+
+static int chip_ready(struct map_info *map, struct flchip *chip, int mode)
+{
+ struct lpddr_private *lpddr = map->fldrv_priv;
+ int ret = 0;
+ DECLARE_WAITQUEUE(wait, current);
+
+ /* Prevent setting state FL_SYNCING for chip in suspended state. */
+ if (FL_SYNCING == mode && FL_READY != chip->oldstate)
+ goto sleep;
+
+ switch (chip->state) {
+ case FL_READY:
+ case FL_JEDEC_QUERY:
+ return 0;
+
+ case FL_ERASING:
+ if (!lpddr->qinfo->SuspEraseSupp ||
+ !(mode == FL_READY || mode == FL_POINT))
+ goto sleep;
+
+ map_write(map, CMD(LPDDR_SUSPEND),
+ map->pfow_base + PFOW_PROGRAM_ERASE_SUSPEND);
+ chip->oldstate = FL_ERASING;
+ chip->state = FL_ERASE_SUSPENDING;
+ ret = wait_for_ready(map, chip, 0);
+ if (ret) {
+ /* Oops. something got wrong. */
+ /* Resume and pretend we weren't here. */
+ map_write(map, CMD(LPDDR_RESUME),
+ map->pfow_base + PFOW_COMMAND_CODE);
+ map_write(map, CMD(LPDDR_START_EXECUTION),
+ map->pfow_base + PFOW_COMMAND_EXECUTE);
+ chip->state = FL_ERASING;
+ chip->oldstate = FL_READY;
+ printk(KERN_ERR "%s: suspend operation failed."
+ "State may be wrong \n", map->name);
+ return -EIO;
+ }
+ chip->erase_suspended = 1;
+ chip->state = FL_READY;
+ return 0;
+ /* Erase suspend */
+ case FL_POINT:
+ /* Only if there's no operation suspended... */
+ if (mode == FL_READY && chip->oldstate == FL_READY)
+ return 0;
+
+ default:
+sleep:
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ add_wait_queue(&chip->wq, &wait);
+ spin_unlock(chip->mutex);
+ schedule();
+ remove_wait_queue(&chip->wq, &wait);
+ spin_lock(chip->mutex);
+ return -EAGAIN;
+ }
+}
+
+static void put_chip(struct map_info *map, struct flchip *chip)
+{
+ if (chip->priv) {
+ struct flchip_shared *shared = chip->priv;
+ spin_lock(&shared->lock);
+ if (shared->writing == chip && chip->oldstate == FL_READY) {
+ /* We own the ability to write, but we're done */
+ shared->writing = shared->erasing;
+ if (shared->writing && shared->writing != chip) {
+ /* give back the ownership */
+ struct flchip *loaner = shared->writing;
+ spin_lock(loaner->mutex);
+ spin_unlock(&shared->lock);
+ spin_unlock(chip->mutex);
+ put_chip(map, loaner);
+ spin_lock(chip->mutex);
+ spin_unlock(loaner->mutex);
+ wake_up(&chip->wq);
+ return;
+ }
+ shared->erasing = NULL;
+ shared->writing = NULL;
+ } else if (shared->erasing == chip && shared->writing != chip) {
+ /*
+ * We own the ability to erase without the ability
+ * to write, which means the erase was suspended
+ * and some other partition is currently writing.
+ * Don't let the switch below mess things up since
+ * we don't have ownership to resume anything.
+ */
+ spin_unlock(&shared->lock);
+ wake_up(&chip->wq);
+ return;
+ }
+ spin_unlock(&shared->lock);
+ }
+
+ switch (chip->oldstate) {
+ case FL_ERASING:
+ chip->state = chip->oldstate;
+ map_write(map, CMD(LPDDR_RESUME),
+ map->pfow_base + PFOW_COMMAND_CODE);
+ map_write(map, CMD(LPDDR_START_EXECUTION),
+ map->pfow_base + PFOW_COMMAND_EXECUTE);
+ chip->oldstate = FL_READY;
+ chip->state = FL_ERASING;
+ break;
+ case FL_READY:
+ break;
+ default:
+ printk(KERN_ERR "%s: put_chip() called with oldstate %d!\n",
+ map->name, chip->oldstate);
+ }
+ wake_up(&chip->wq);
+}
+
+int do_write_buffer(struct map_info *map, struct flchip *chip,
+ unsigned long adr, const struct kvec **pvec,
+ unsigned long *pvec_seek, int len)
+{
+ struct lpddr_private *lpddr = map->fldrv_priv;
+ map_word datum;
+ int ret, wbufsize, word_gap, words;
+ const struct kvec *vec;
+ unsigned long vec_seek;
+ unsigned long prog_buf_ofs;
+
+ wbufsize = 1 << lpddr->qinfo->BufSizeShift;
+
+ spin_lock(chip->mutex);
+ ret = get_chip(map, chip, FL_WRITING);
+ if (ret) {
+ spin_unlock(chip->mutex);
+ return ret;
+ }
+ /* Figure out the number of words to write */
+ word_gap = (-adr & (map_bankwidth(map)-1));
+ words = (len - word_gap + map_bankwidth(map) - 1) / map_bankwidth(map);
+ if (!word_gap) {
+ words--;
+ } else {
+ word_gap = map_bankwidth(map) - word_gap;
+ adr -= word_gap;
+ datum = map_word_ff(map);
+ }
+ /* Write data */
+ /* Get the program buffer offset from PFOW register data first*/
+ prog_buf_ofs = map->pfow_base + CMDVAL(map_read(map,
+ map->pfow_base + PFOW_PROGRAM_BUFFER_OFFSET));
+ vec = *pvec;
+ vec_seek = *pvec_seek;
+ do {
+ int n = map_bankwidth(map) - word_gap;
+
+ if (n > vec->iov_len - vec_seek)
+ n = vec->iov_len - vec_seek;
+ if (n > len)
+ n = len;
+
+ if (!word_gap && (len < map_bankwidth(map)))
+ datum = map_word_ff(map);
+
+ datum = map_word_load_partial(map, datum,
+ vec->iov_base + vec_seek, word_gap, n);
+
+ len -= n;
+ word_gap += n;
+ if (!len || word_gap == map_bankwidth(map)) {
+ map_write(map, datum, prog_buf_ofs);
+ prog_buf_ofs += map_bankwidth(map);
+ word_gap = 0;
+ }
+
+ vec_seek += n;
+ if (vec_seek == vec->iov_len) {
+ vec++;
+ vec_seek = 0;
+ }
+ } while (len);
+ *pvec = vec;
+ *pvec_seek = vec_seek;
+
+ /* GO GO GO */
+ send_pfow_command(map, LPDDR_BUFF_PROGRAM, adr, wbufsize, NULL);
+ chip->state = FL_WRITING;
+ ret = wait_for_ready(map, chip, (1<<lpddr->qinfo->ProgBufferTime));
+ if (ret) {
+ printk(KERN_WARNING"%s Buffer program error: %d at %lx; \n",
+ map->name, ret, adr);
+ goto out;
+ }
+
+ out: put_chip(map, chip);
+ spin_unlock(chip->mutex);
+ return ret;
+}
+
+int do_erase_oneblock(struct mtd_info *mtd, loff_t adr)
+{
+ struct map_info *map = mtd->priv;
+ struct lpddr_private *lpddr = map->fldrv_priv;
+ int chipnum = adr >> lpddr->chipshift;
+ struct flchip *chip = &lpddr->chips[chipnum];
+ int ret;
+
+ spin_lock(chip->mutex);
+ ret = get_chip(map, chip, FL_ERASING);
+ if (ret) {
+ spin_unlock(chip->mutex);
+ return ret;
+ }
+ send_pfow_command(map, LPDDR_BLOCK_ERASE, adr, 0, NULL);
+ chip->state = FL_ERASING;
+ ret = wait_for_ready(map, chip, (1<<lpddr->qinfo->BlockEraseTime)*1000);
+ if (ret) {
+ printk(KERN_WARNING"%s Erase block error %d at : %llx\n",
+ map->name, ret, adr);
+ goto out;
+ }
+ out: put_chip(map, chip);
+ spin_unlock(chip->mutex);
+ return ret;
+}
+
+static int lpddr_read(struct mtd_info *mtd, loff_t adr, size_t len,
+ size_t *retlen, u_char *buf)
+{
+ struct map_info *map = mtd->priv;
+ struct lpddr_private *lpddr = map->fldrv_priv;
+ int chipnum = adr >> lpddr->chipshift;
+ struct flchip *chip = &lpddr->chips[chipnum];
+ int ret = 0;
+
+ spin_lock(chip->mutex);
+ ret = get_chip(map, chip, FL_READY);
+ if (ret) {
+ spin_unlock(chip->mutex);
+ return ret;
+ }
+
+ map_copy_from(map, buf, adr, len);
+ *retlen = len;
+
+ put_chip(map, chip);
+ spin_unlock(chip->mutex);
+ return ret;
+}
+
+static int lpddr_point(struct mtd_info *mtd, loff_t adr, size_t len,
+ size_t *retlen, void **mtdbuf, resource_size_t *phys)
+{
+ struct map_info *map = mtd->priv;
+ struct lpddr_private *lpddr = map->fldrv_priv;
+ int chipnum = adr >> lpddr->chipshift;
+ unsigned long ofs, last_end = 0;
+ struct flchip *chip = &lpddr->chips[chipnum];
+ int ret = 0;
+
+ if (!map->virt || (adr + len > mtd->size))
+ return -EINVAL;
+
+ /* ofs: offset within the first chip that the first read should start */
+ ofs = adr - (chipnum << lpddr->chipshift);
+
+ *mtdbuf = (void *)map->virt + chip->start + ofs;
+ *retlen = 0;
+
+ while (len) {
+ unsigned long thislen;
+
+ if (chipnum >= lpddr->numchips)
+ break;
+
+ /* We cannot point across chips that are virtually disjoint */
+ if (!last_end)
+ last_end = chip->start;
+ else if (chip->start != last_end)
+ break;
+
+ if ((len + ofs - 1) >> lpddr->chipshift)
+ thislen = (1<<lpddr->chipshift) - ofs;
+ else
+ thislen = len;
+ /* get the chip */
+ spin_lock(chip->mutex);
+ ret = get_chip(map, chip, FL_POINT);
+ spin_unlock(chip->mutex);
+ if (ret)
+ break;
+
+ chip->state = FL_POINT;
+ chip->ref_point_counter++;
+ *retlen += thislen;
+ len -= thislen;
+
+ ofs = 0;
+ last_end += 1 << lpddr->chipshift;
+ chipnum++;
+ chip = &lpddr->chips[chipnum];
+ }
+ return 0;
+}
+
+static void lpddr_unpoint (struct mtd_info *mtd, loff_t adr, size_t len)
+{
+ struct map_info *map = mtd->priv;
+ struct lpddr_private *lpddr = map->fldrv_priv;
+ int chipnum = adr >> lpddr->chipshift;
+ unsigned long ofs;
+
+ /* ofs: offset within the first chip that the first read should start */
+ ofs = adr - (chipnum << lpddr->chipshift);
+
+ while (len) {
+ unsigned long thislen;
+ struct flchip *chip;
+
+ chip = &lpddr->chips[chipnum];
+ if (chipnum >= lpddr->numchips)
+ break;
+
+ if ((len + ofs - 1) >> lpddr->chipshift)
+ thislen = (1<<lpddr->chipshift) - ofs;
+ else
+ thislen = len;
+
+ spin_lock(chip->mutex);
+ if (chip->state == FL_POINT) {
+ chip->ref_point_counter--;
+ if (chip->ref_point_counter == 0)
+ chip->state = FL_READY;
+ } else
+ printk(KERN_WARNING "%s: Warning: unpoint called on non"
+ "pointed region\n", map->name);
+
+ put_chip(map, chip);
+ spin_unlock(chip->mutex);
+
+ len -= thislen;
+ ofs = 0;
+ chipnum++;
+ }
+}
+
+static int lpddr_write_buffers(struct mtd_info *mtd, loff_t to, size_t len,
+ size_t *retlen, const u_char *buf)
+{
+ struct kvec vec;
+
+ vec.iov_base = (void *) buf;
+ vec.iov_len = len;
+
+ return lpddr_writev(mtd, &vec, 1, to, retlen);
+}
+
+
+static int lpddr_writev(struct mtd_info *mtd, const struct kvec *vecs,
+ unsigned long count, loff_t to, size_t *retlen)
+{
+ struct map_info *map = mtd->priv;
+ struct lpddr_private *lpddr = map->fldrv_priv;
+ int ret = 0;
+ int chipnum;
+ unsigned long ofs, vec_seek, i;
+ int wbufsize = 1 << lpddr->qinfo->BufSizeShift;
+
+ size_t len = 0;
+
+ for (i = 0; i < count; i++)
+ len += vecs[i].iov_len;
+
+ *retlen = 0;
+ if (!len)
+ return 0;
+
+ chipnum = to >> lpddr->chipshift;
+
+ ofs = to;
+ vec_seek = 0;
+
+ do {
+ /* We must not cross write block boundaries */
+ int size = wbufsize - (ofs & (wbufsize-1));
+
+ if (size > len)
+ size = len;
+
+ ret = do_write_buffer(map, &lpddr->chips[chipnum],
+ ofs, &vecs, &vec_seek, size);
+ if (ret)
+ return ret;
+
+ ofs += size;
+ (*retlen) += size;
+ len -= size;
+
+ /* Be nice and reschedule with the chip in a usable
+ * state for other processes */
+ cond_resched();
+
+ } while (len);
+
+ return 0;
+}
+
+static int lpddr_erase(struct mtd_info *mtd, struct erase_info *instr)
+{
+ unsigned long ofs, len;
+ int ret;
+ struct map_info *map = mtd->priv;
+ struct lpddr_private *lpddr = map->fldrv_priv;
+ int size = 1 << lpddr->qinfo->UniformBlockSizeShift;
+
+ ofs = instr->addr;
+ len = instr->len;
+
+ if (ofs > mtd->size || (len + ofs) > mtd->size)
+ return -EINVAL;
+
+ while (len > 0) {
+ ret = do_erase_oneblock(mtd, ofs);
+ if (ret)
+ return ret;
+ ofs += size;
+ len -= size;
+ }
+ instr->state = MTD_ERASE_DONE;
+ mtd_erase_callback(instr);
+
+ return 0;
+}
+
+#define DO_XXLOCK_LOCK 1
+#define DO_XXLOCK_UNLOCK 2
+int do_xxlock(struct mtd_info *mtd, loff_t adr, uint32_t len, int thunk)
+{
+ int ret = 0;
+ struct map_info *map = mtd->priv;
+ struct lpddr_private *lpddr = map->fldrv_priv;
+ int chipnum = adr >> lpddr->chipshift;
+ struct flchip *chip = &lpddr->chips[chipnum];
+
+ spin_lock(chip->mutex);
+ ret = get_chip(map, chip, FL_LOCKING);
+ if (ret) {
+ spin_unlock(chip->mutex);
+ return ret;
+ }
+
+ if (thunk == DO_XXLOCK_LOCK) {
+ send_pfow_command(map, LPDDR_LOCK_BLOCK, adr, adr + len, NULL);
+ chip->state = FL_LOCKING;
+ } else if (thunk == DO_XXLOCK_UNLOCK) {
+ send_pfow_command(map, LPDDR_UNLOCK_BLOCK, adr, adr + len, NULL);
+ chip->state = FL_UNLOCKING;
+ } else
+ BUG();
+
+ ret = wait_for_ready(map, chip, 1);
+ if (ret) {
+ printk(KERN_ERR "%s: block unlock error status %d \n",
+ map->name, ret);
+ goto out;
+ }
+out: put_chip(map, chip);
+ spin_unlock(chip->mutex);
+ return ret;
+}
+
+static int lpddr_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
+{
+ return do_xxlock(mtd, ofs, len, DO_XXLOCK_LOCK);
+}
+
+static int lpddr_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
+{
+ return do_xxlock(mtd, ofs, len, DO_XXLOCK_UNLOCK);
+}
+
+int word_program(struct map_info *map, loff_t adr, uint32_t curval)
+{
+ int ret;
+ struct lpddr_private *lpddr = map->fldrv_priv;
+ int chipnum = adr >> lpddr->chipshift;
+ struct flchip *chip = &lpddr->chips[chipnum];
+
+ spin_lock(chip->mutex);
+ ret = get_chip(map, chip, FL_WRITING);
+ if (ret) {
+ spin_unlock(chip->mutex);
+ return ret;
+ }
+
+ send_pfow_command(map, LPDDR_WORD_PROGRAM, adr, 0x00, (map_word *)&curval);
+
+ ret = wait_for_ready(map, chip, (1<<lpddr->qinfo->SingleWordProgTime));
+ if (ret) {
+ printk(KERN_WARNING"%s word_program error at: %llx; val: %x\n",
+ map->name, adr, curval);
+ goto out;
+ }
+
+out: put_chip(map, chip);
+ spin_unlock(chip->mutex);
+ return ret;
+}
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Alexey Korolev <akorolev@infradead.org>");
+MODULE_DESCRIPTION("MTD driver for LPDDR flash chips");
--- /dev/null
+/*
+ * Probing flash chips with QINFO records.
+ * (C) 2008 Korolev Alexey <akorolev@infradead.org>
+ * (C) 2008 Vasiliy Leonenko <vasiliy.leonenko@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+
+#include <linux/mtd/xip.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/pfow.h>
+#include <linux/mtd/qinfo.h>
+
+static int lpddr_chip_setup(struct map_info *map, struct lpddr_private *lpddr);
+struct mtd_info *lpddr_probe(struct map_info *map);
+static struct lpddr_private *lpddr_probe_chip(struct map_info *map);
+static int lpddr_pfow_present(struct map_info *map,
+ struct lpddr_private *lpddr);
+
+static struct qinfo_query_info qinfo_array[] = {
+ /* General device info */
+ {0, 0, "DevSizeShift", "Device size 2^n bytes"},
+ {0, 3, "BufSizeShift", "Program buffer size 2^n bytes"},
+ /* Erase block information */
+ {1, 1, "TotalBlocksNum", "Total number of blocks"},
+ {1, 2, "UniformBlockSizeShift", "Uniform block size 2^n bytes"},
+ /* Partition information */
+ {2, 1, "HWPartsNum", "Number of hardware partitions"},
+ /* Optional features */
+ {5, 1, "SuspEraseSupp", "Suspend erase supported"},
+ /* Operation typical time */
+ {10, 0, "SingleWordProgTime", "Single word program 2^n u-sec"},
+ {10, 1, "ProgBufferTime", "Program buffer write 2^n u-sec"},
+ {10, 2, "BlockEraseTime", "Block erase 2^n m-sec"},
+ {10, 3, "FullChipEraseTime", "Full chip erase 2^n m-sec"},
+};
+
+static long lpddr_get_qinforec_pos(struct map_info *map, char *id_str)
+{
+ int qinfo_lines = sizeof(qinfo_array)/sizeof(struct qinfo_query_info);
+ int i;
+ int bankwidth = map_bankwidth(map) * 8;
+ int major, minor;
+
+ for (i = 0; i < qinfo_lines; i++) {
+ if (strcmp(id_str, qinfo_array[i].id_str) == 0) {
+ major = qinfo_array[i].major & ((1 << bankwidth) - 1);
+ minor = qinfo_array[i].minor & ((1 << bankwidth) - 1);
+ return minor | (major << bankwidth);
+ }
+ }
+ printk(KERN_ERR"%s qinfo id string is wrong! \n", map->name);
+ BUG();
+ return -1;
+}
+
+static uint16_t lpddr_info_query(struct map_info *map, char *id_str)
+{
+ unsigned int dsr, val;
+ int bits_per_chip = map_bankwidth(map) * 8;
+ unsigned long adr = lpddr_get_qinforec_pos(map, id_str);
+ int attempts = 20;
+
+ /* Write a request for the PFOW record */
+ map_write(map, CMD(LPDDR_INFO_QUERY),
+ map->pfow_base + PFOW_COMMAND_CODE);
+ map_write(map, CMD(adr & ((1 << bits_per_chip) - 1)),
+ map->pfow_base + PFOW_COMMAND_ADDRESS_L);
+ map_write(map, CMD(adr >> bits_per_chip),
+ map->pfow_base + PFOW_COMMAND_ADDRESS_H);
+ map_write(map, CMD(LPDDR_START_EXECUTION),
+ map->pfow_base + PFOW_COMMAND_EXECUTE);
+
+ while ((attempts--) > 0) {
+ dsr = CMDVAL(map_read(map, map->pfow_base + PFOW_DSR));
+ if (dsr & DSR_READY_STATUS)
+ break;
+ udelay(10);
+ }
+
+ val = CMDVAL(map_read(map, map->pfow_base + PFOW_COMMAND_DATA));
+ return val;
+}
+
+static int lpddr_pfow_present(struct map_info *map, struct lpddr_private *lpddr)
+{
+ map_word pfow_val[4];
+
+ /* Check identification string */
+ pfow_val[0] = map_read(map, map->pfow_base + PFOW_QUERY_STRING_P);
+ pfow_val[1] = map_read(map, map->pfow_base + PFOW_QUERY_STRING_F);
+ pfow_val[2] = map_read(map, map->pfow_base + PFOW_QUERY_STRING_O);
+ pfow_val[3] = map_read(map, map->pfow_base + PFOW_QUERY_STRING_W);
+
+ if (!map_word_equal(map, CMD('P'), pfow_val[0]))
+ goto out;
+
+ if (!map_word_equal(map, CMD('F'), pfow_val[1]))
+ goto out;
+
+ if (!map_word_equal(map, CMD('O'), pfow_val[2]))
+ goto out;
+
+ if (!map_word_equal(map, CMD('W'), pfow_val[3]))
+ goto out;
+
+ return 1; /* "PFOW" is found */
+out:
+ printk(KERN_WARNING"%s: PFOW string at 0x%lx is not found \n",
+ map->name, map->pfow_base);
+ return 0;
+}
+
+static int lpddr_chip_setup(struct map_info *map, struct lpddr_private *lpddr)
+{
+
+ lpddr->qinfo = kmalloc(sizeof(struct qinfo_chip), GFP_KERNEL);
+ if (!lpddr->qinfo) {
+ printk(KERN_WARNING "%s: no memory for LPDDR qinfo structure\n",
+ map->name);
+ return 0;
+ }
+ memset(lpddr->qinfo, 0, sizeof(struct qinfo_chip));
+
+ /* Get the ManuID */
+ lpddr->ManufactId = CMDVAL(map_read(map, map->pfow_base + PFOW_MANUFACTURER_ID));
+ /* Get the DeviceID */
+ lpddr->DevId = CMDVAL(map_read(map, map->pfow_base + PFOW_DEVICE_ID));
+ /* read parameters from chip qinfo table */
+ lpddr->qinfo->DevSizeShift = lpddr_info_query(map, "DevSizeShift");
+ lpddr->qinfo->TotalBlocksNum = lpddr_info_query(map, "TotalBlocksNum");
+ lpddr->qinfo->BufSizeShift = lpddr_info_query(map, "BufSizeShift");
+ lpddr->qinfo->HWPartsNum = lpddr_info_query(map, "HWPartsNum");
+ lpddr->qinfo->UniformBlockSizeShift =
+ lpddr_info_query(map, "UniformBlockSizeShift");
+ lpddr->qinfo->SuspEraseSupp = lpddr_info_query(map, "SuspEraseSupp");
+ lpddr->qinfo->SingleWordProgTime =
+ lpddr_info_query(map, "SingleWordProgTime");
+ lpddr->qinfo->ProgBufferTime = lpddr_info_query(map, "ProgBufferTime");
+ lpddr->qinfo->BlockEraseTime = lpddr_info_query(map, "BlockEraseTime");
+ return 1;
+}
+static struct lpddr_private *lpddr_probe_chip(struct map_info *map)
+{
+ struct lpddr_private lpddr;
+ struct lpddr_private *retlpddr;
+ int numvirtchips;
+
+
+ if ((map->pfow_base + 0x1000) >= map->size) {
+ printk(KERN_NOTICE"%s Probe at base (0x%08lx) past the end of"
+ "the map(0x%08lx)\n", map->name,
+ (unsigned long)map->pfow_base, map->size - 1);
+ return NULL;
+ }
+ memset(&lpddr, 0, sizeof(struct lpddr_private));
+ if (!lpddr_pfow_present(map, &lpddr))
+ return NULL;
+
+ if (!lpddr_chip_setup(map, &lpddr))
+ return NULL;
+
+ /* Ok so we found a chip */
+ lpddr.chipshift = lpddr.qinfo->DevSizeShift;
+ lpddr.numchips = 1;
+
+ numvirtchips = lpddr.numchips * lpddr.qinfo->HWPartsNum;
+ retlpddr = kmalloc(sizeof(struct lpddr_private) +
+ numvirtchips * sizeof(struct flchip), GFP_KERNEL);
+ if (!retlpddr)
+ return NULL;
+
+ memset(retlpddr, 0, sizeof(struct lpddr_private) +
+ numvirtchips * sizeof(struct flchip));
+ memcpy(retlpddr, &lpddr, sizeof(struct lpddr_private));
+
+ retlpddr->numchips = numvirtchips;
+ retlpddr->chipshift = retlpddr->qinfo->DevSizeShift -
+ __ffs(retlpddr->qinfo->HWPartsNum);
+
+ return retlpddr;
+}
+
+struct mtd_info *lpddr_probe(struct map_info *map)
+{
+ struct mtd_info *mtd = NULL;
+ struct lpddr_private *lpddr;
+
+ /* First probe the map to see if we havecan open PFOW here */
+ lpddr = lpddr_probe_chip(map);
+ if (!lpddr)
+ return NULL;
+
+ map->fldrv_priv = lpddr;
+ mtd = lpddr_cmdset(map);
+ if (mtd) {
+ if (mtd->size > map->size) {
+ printk(KERN_WARNING "Reducing visibility of %ldKiB chip"
+ "to %ldKiB\n", (unsigned long)mtd->size >> 10,
+ (unsigned long)map->size >> 10);
+ mtd->size = map->size;
+ }
+ return mtd;
+ }
+
+ kfree(lpddr->qinfo);
+ kfree(lpddr);
+ map->fldrv_priv = NULL;
+ return NULL;
+}
+
+static struct mtd_chip_driver lpddr_chipdrv = {
+ .probe = lpddr_probe,
+ .name = "qinfo_probe",
+ .module = THIS_MODULE
+};
+
+static int __init lpddr_probe_init(void)
+{
+ register_mtd_chip_driver(&lpddr_chipdrv);
+ return 0;
+}
+
+static void __exit lpddr_probe_exit(void)
+{
+ unregister_mtd_chip_driver(&lpddr_chipdrv);
+}
+
+module_init(lpddr_probe_init);
+module_exit(lpddr_probe_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Vasiliy Leonenko <vasiliy.leonenko@gmail.com>");
+MODULE_DESCRIPTION("Driver to probe qinfo flash chips");
+
paged mappings of flash chips.
config MTD_PHYSMAP
- tristate "CFI Flash device in physical memory map"
- depends on MTD_CFI || MTD_JEDECPROBE || MTD_ROM
+ tristate "Flash device in physical memory map"
+ depends on MTD_CFI || MTD_JEDECPROBE || MTD_ROM || MTD_LPDDR
help
This provides a 'mapping' driver which allows the NOR Flash and
ROM driver code to communicate with chips which are mapped
To compile this driver as a module, choose M here: the
module will be called physmap.
+config MTD_PHYSMAP_COMPAT
+ bool "Physmap compat support"
+ depends on MTD_PHYSMAP
+ default n
+ help
+ Setup a simple mapping via the Kconfig options. Normally the
+ physmap configuration options are done via your board's
+ resource file.
+
+ If unsure, say N here.
+
config MTD_PHYSMAP_START
hex "Physical start address of flash mapping"
- depends on MTD_PHYSMAP
+ depends on MTD_PHYSMAP_COMPAT
default "0x8000000"
help
This is the physical memory location at which the flash chips
config MTD_PHYSMAP_LEN
hex "Physical length of flash mapping"
- depends on MTD_PHYSMAP
+ depends on MTD_PHYSMAP_COMPAT
default "0"
help
This is the total length of the mapping of the flash chips on
config MTD_PHYSMAP_BANKWIDTH
int "Bank width in octets"
- depends on MTD_PHYSMAP
+ depends on MTD_PHYSMAP_COMPAT
default "2"
help
This is the total width of the data bus of the flash devices
static struct mtd_info *mymtd;
-int __init alchemy_mtd_init(void)
+static int __init alchemy_mtd_init(void)
{
struct mtd_partition *parts;
int nb_parts = 0;
/* Trim the size if we are larger than the map */
if (map->mtd->size > map->map.size) {
printk(KERN_WARNING MOD_NAME
- " rom(%u) larger than window(%lu). fixing...\n",
- map->mtd->size, map->map.size);
+ " rom(%llu) larger than window(%lu). fixing...\n",
+ (unsigned long long)map->mtd->size, map->map.size);
map->mtd->size = map->map.size;
}
if (window->rsrc.parent) {
static struct mtd_info *mymtd;
-int __init init_flagadm(void)
+static int __init init_flagadm(void)
{
printk(KERN_NOTICE "FlagaDM flash device: %x at %x\n",
FLASH_SIZE, FLASH_PHYS_ADDR);
/* Trim the size if we are larger than the map */
if (map->mtd->size > map->map.size) {
printk(KERN_WARNING MOD_NAME
- " rom(%u) larger than window(%lu). fixing...\n",
- map->mtd->size, map->map.size);
+ " rom(%llu) larger than window(%lu). fixing...\n",
+ (unsigned long long)map->mtd->size, map->map.size);
map->mtd->size = map->map.size;
}
if (window->rsrc.parent) {
.phys = WINDOW_ADDR,
};
-int __init init_dbox2_flash(void)
+static int __init init_dbox2_flash(void)
{
printk(KERN_NOTICE "D-Box 2 flash driver (size->0x%X mem->0x%X)\n", WINDOW_SIZE, WINDOW_ADDR);
dbox2_flash_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
static int mtd_parts_nb = 0;
static struct mtd_partition *mtd_parts = 0;
-int __init init_edb7312nor(void)
+static int __init init_edb7312nor(void)
{
static const char *rom_probe_types[] = PROBETYPES;
const char **type;
/* Trim the size if we are larger than the map */
if (map->mtd->size > map->map.size) {
printk(KERN_WARNING MOD_NAME
- " rom(%u) larger than window(%lu). fixing...\n",
- map->mtd->size, map->map.size);
+ " rom(%llu) larger than window(%lu). fixing...\n",
+ (unsigned long long)map->mtd->size, map->map.size);
map->mtd->size = map->map.size;
}
if (window->rsrc.parent) {
/* Backwards-spelling-compatibility */
__setup("MTD_Partion=", MTD_New_Partition);
-int __init init_fortunet(void)
+static int __init init_fortunet(void)
{
int ix,iy;
for(iy=ix=0;ix<MAX_NUM_REGIONS;ix++)
/*
* Initialize FLASH support
*/
-int __init h720x_mtd_init(void)
+static int __init h720x_mtd_init(void)
{
char *part_type = NULL;
/* Trim the size if we are larger than the map */
if (map->mtd->size > map->map.size) {
printk(KERN_WARNING MOD_NAME
- " rom(%u) larger than window(%lu). fixing...\n",
- map->mtd->size, map->map.size);
+ " rom(%llu) larger than window(%lu). fixing...\n",
+ (unsigned long long)map->mtd->size, map->map.size);
map->mtd->size = map->map.size;
}
if (window->rsrc.parent) {
static const char *probes[] = { "cmdlinepart", NULL };
-int __init init_impa7(void)
+static int __init init_impa7(void)
{
static const char *rom_probe_types[] = PROBETYPES;
const char **type;
static int __init h1900_special_case(void);
-int __init ipaq_mtd_init(void)
+static int __init ipaq_mtd_init(void)
{
struct mtd_partition *parts = NULL;
int nb_parts = 0;
.bankwidth = 4,
};
-int __init init_mbx(void)
+static int __init init_mbx(void)
{
printk(KERN_NOTICE "Motorola MBX flash device: 0x%x at 0x%x\n", WINDOW_SIZE*4, WINDOW_ADDR);
mbx_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE * 4);
if ((amd_mtd = do_map_probe("jedec_probe", &nettel_amd_map))) {
printk(KERN_NOTICE "SNAPGEAR: AMD flash device size = %dK\n",
- amd_mtd->size>>10);
+ (int)(amd_mtd->size>>10));
amd_mtd->owner = THIS_MODULE;
*intel1par = 0;
}
- printk(KERN_NOTICE "SNAPGEAR: Intel flash device size = %dK\n",
- (intel_mtd->size >> 10));
+ printk(KERN_NOTICE "SNAPGEAR: Intel flash device size = %lldKiB\n",
+ (unsigned long long)(intel_mtd->size >> 10));
intel_mtd->owner = THIS_MODULE;
- num_intel_partitions = sizeof(nettel_intel_partitions) /
- sizeof(nettel_intel_partitions[0]);
+ num_intel_partitions = ARRAY_SIZE(nettel_intel_partitions);
if (intelboot) {
/*
release_region(PAGE_IO, 1);
}
-int __init init_oct5066(void)
+static int __init init_oct5066(void)
{
int i;
int ret = 0;
struct map_info map[MAX_RESOURCES];
#ifdef CONFIG_MTD_PARTITIONS
int nr_parts;
- struct mtd_partition *parts;
#endif
};
for (i = 0; i < MAX_RESOURCES; i++) {
if (info->mtd[i] != NULL) {
#ifdef CONFIG_MTD_PARTITIONS
- if (info->nr_parts) {
+ if (info->nr_parts || physmap_data->nr_parts)
del_mtd_partitions(info->mtd[i]);
- kfree(info->parts);
- } else if (physmap_data->nr_parts) {
- del_mtd_partitions(info->mtd[i]);
- } else {
+ else
del_mtd_device(info->mtd[i]);
- }
#else
del_mtd_device(info->mtd[i]);
#endif
return 0;
}
-static const char *rom_probe_types[] = { "cfi_probe", "jedec_probe", "map_rom", NULL };
+static const char *rom_probe_types[] = {
+ "cfi_probe",
+ "jedec_probe",
+ "qinfo_probe",
+ "map_rom",
+ NULL };
#ifdef CONFIG_MTD_PARTITIONS
static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", NULL };
#endif
int err = 0;
int i;
int devices_found = 0;
+#ifdef CONFIG_MTD_PARTITIONS
+ struct mtd_partition *parts;
+#endif
physmap_data = dev->dev.platform_data;
if (physmap_data == NULL)
info->map[i].size = dev->resource[i].end - dev->resource[i].start + 1;
info->map[i].bankwidth = physmap_data->width;
info->map[i].set_vpp = physmap_data->set_vpp;
+ info->map[i].pfow_base = physmap_data->pfow_base;
info->map[i].virt = devm_ioremap(&dev->dev, info->map[i].phys,
info->map[i].size);
goto err_out;
#ifdef CONFIG_MTD_PARTITIONS
- err = parse_mtd_partitions(info->cmtd, part_probe_types, &info->parts, 0);
+ err = parse_mtd_partitions(info->cmtd, part_probe_types, &parts, 0);
if (err > 0) {
- add_mtd_partitions(info->cmtd, info->parts, err);
+ add_mtd_partitions(info->cmtd, parts, err);
+ kfree(parts);
return 0;
}
};
-#ifdef CONFIG_MTD_PHYSMAP_LEN
-#if CONFIG_MTD_PHYSMAP_LEN != 0
-#warning using PHYSMAP compat code
-#define PHYSMAP_COMPAT
-#endif
-#endif
-
-#ifdef PHYSMAP_COMPAT
+#ifdef CONFIG_MTD_PHYSMAP_COMPAT
static struct physmap_flash_data physmap_flash_data = {
.width = CONFIG_MTD_PHYSMAP_BANKWIDTH,
};
int err;
err = platform_driver_register(&physmap_flash_driver);
-#ifdef PHYSMAP_COMPAT
+#ifdef CONFIG_MTD_PHYSMAP_COMPAT
if (err == 0)
platform_device_register(&physmap_flash);
#endif
static void __exit physmap_exit(void)
{
-#ifdef PHYSMAP_COMPAT
+#ifdef CONFIG_MTD_PHYSMAP_COMPAT
platform_device_unregister(&physmap_flash);
#endif
platform_driver_unregister(&physmap_flash_driver);
MODULE_DESCRIPTION("Generic configurable MTD map driver");
/* legacy platform drivers can't hotplug or coldplg */
-#ifndef PHYSMAP_COMPAT
+#ifndef CONFIG_MTD_PHYSMAP_COMPAT
/* work with hotplug and coldplug */
MODULE_ALIAS("platform:physmap-flash");
#endif
-
#define DEBUG_MARKER printk(KERN_NOTICE "%s[%d]\n", __func__, __LINE__)
-int __init init_msp_flash(void)
+static int __init init_msp_flash(void)
{
int i, j;
int offset, coff;
static struct mtd_info *redwood_mtd;
-int __init init_redwood_flash(void)
+static int __init init_redwood_flash(void)
{
int err;
.phys = WINDOW_ADDR,
};
-int __init init_rpxlite(void)
+static int __init init_rpxlite(void)
{
printk(KERN_NOTICE "RPX Lite or CLLF flash device: %x at %x\n", WINDOW_SIZE*4, WINDOW_ADDR);
rpxlite_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE * 4);
#endif /* CONFIG_MTD_PARTITIONS */
-int __init init_sbc8240_mtd (void)
+static int __init init_sbc8240_mtd (void)
{
static struct _cjs {
u_long addr;
struct mtd_erase_region_info *region = &mtd->eraseregions[i];
if (region->numblocks * region->erasesize > mtd->size) {
- region->numblocks = (mtd->size / region->erasesize);
+ region->numblocks = ((unsigned long)mtd->size /
+ region->erasesize);
done = 1;
} else {
region->numblocks = 0;
return -ENODEV;
}
- printk(KERN_NOTICE MODNAME ": chip size 0x%x at offset 0x%x\n",
- scb2_mtd->size, SCB2_WINDOW - scb2_mtd->size);
+ printk(KERN_NOTICE MODNAME ": chip size 0x%llx at offset 0x%llx\n",
+ (unsigned long long)scb2_mtd->size,
+ (unsigned long long)(SCB2_WINDOW - scb2_mtd->size));
add_mtd_device(scb2_mtd);
}
};
-int __init init_sharpsl(void)
+static int __init init_sharpsl(void)
{
struct mtd_partition *parts;
int nb_parts = 0;
};
#endif
-int __init init_tqm_mtd(void)
+static int __init init_tqm_mtd(void)
{
int idx = 0, ret = 0;
unsigned long flash_addr, flash_size, mtd_size = 0;
/****************************************************************************/
-int __init uclinux_mtd_init(void)
+static int __init uclinux_mtd_init(void)
{
struct mtd_info *mtd;
struct map_info *mapp;
/****************************************************************************/
-void __exit uclinux_mtd_cleanup(void)
+static void __exit uclinux_mtd_cleanup(void)
{
if (uclinux_ram_mtdinfo) {
del_mtd_partitions(uclinux_ram_mtdinfo);
iounmap((void *)vmax_map[0].map_priv_1 - WINDOW_START);
}
-int __init init_vmax301(void)
+static int __init init_vmax301(void)
{
int i;
unsigned long iomapadr;
} \
} while (0);
-int __init init_sbc82xx_flash(void)
+static int __init init_sbc82xx_flash(void)
{
volatile memctl_cpm2_t *mc = &cpm2_immr->im_memctl;
int bigflash;
if (!erase)
ret = -ENOMEM;
else {
+ struct erase_info_user einfo;
+
wait_queue_head_t waitq;
DECLARE_WAITQUEUE(wait, current);
init_waitqueue_head(&waitq);
- if (copy_from_user(&erase->addr, argp,
+ if (copy_from_user(&einfo, argp,
sizeof(struct erase_info_user))) {
kfree(erase);
return -EFAULT;
}
+ erase->addr = einfo.start;
+ erase->len = einfo.length;
erase->mtd = mtd;
erase->callback = mtdchar_erase_callback;
erase->priv = (unsigned long)&waitq;
continue;
}
- size = min(total_len, (size_t)(subdev->size - to));
+ size = min_t(uint64_t, total_len, subdev->size - to);
wsize = size; /* store for future use */
entry_high = entry_low;
struct mtd_concat *concat = CONCAT(mtd);
struct mtd_info *subdev;
int i, err;
- u_int32_t length, offset = 0;
+ uint64_t length, offset = 0;
struct erase_info *erase;
if (!(mtd->flags & MTD_WRITEABLE))
return 0;
}
-static int concat_lock(struct mtd_info *mtd, loff_t ofs, size_t len)
+static int concat_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
struct mtd_concat *concat = CONCAT(mtd);
int i, err = -EINVAL;
for (i = 0; i < concat->num_subdev; i++) {
struct mtd_info *subdev = concat->subdev[i];
- size_t size;
+ uint64_t size;
if (ofs >= subdev->size) {
size = 0;
return err;
}
-static int concat_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
+static int concat_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
struct mtd_concat *concat = CONCAT(mtd);
int i, err = 0;
for (i = 0; i < concat->num_subdev; i++) {
struct mtd_info *subdev = concat->subdev[i];
- size_t size;
+ uint64_t size;
if (ofs >= subdev->size) {
size = 0;
int i;
size_t size;
struct mtd_concat *concat;
- u_int32_t max_erasesize, curr_erasesize;
+ uint32_t max_erasesize, curr_erasesize;
int num_erase_region;
printk(KERN_NOTICE "Concatenating MTD devices:\n");
concat->mtd.erasesize = curr_erasesize;
concat->mtd.numeraseregions = 0;
} else {
+ uint64_t tmp64;
+
/*
* erase block size varies across the subdevices: allocate
* space to store the data describing the variable erase regions
*/
struct mtd_erase_region_info *erase_region_p;
- u_int32_t begin, position;
+ uint64_t begin, position;
concat->mtd.erasesize = max_erasesize;
concat->mtd.numeraseregions = num_erase_region;
erase_region_p->offset = begin;
erase_region_p->erasesize =
curr_erasesize;
- erase_region_p->numblocks =
- (position - begin) / curr_erasesize;
+ tmp64 = position - begin;
+ do_div(tmp64, curr_erasesize);
+ erase_region_p->numblocks = tmp64;
begin = position;
curr_erasesize = subdev[i]->erasesize;
erase_region_p->offset = begin;
erase_region_p->erasesize =
curr_erasesize;
- erase_region_p->numblocks =
- (position -
- begin) / curr_erasesize;
+ tmp64 = position - begin;
+ do_div(tmp64, curr_erasesize);
+ erase_region_p->numblocks = tmp64;
begin = position;
curr_erasesize =
}
position +=
subdev[i]->eraseregions[j].
- numblocks * curr_erasesize;
+ numblocks * (uint64_t)curr_erasesize;
}
}
}
/* Now write the final entry */
erase_region_p->offset = begin;
erase_region_p->erasesize = curr_erasesize;
- erase_region_p->numblocks = (position - begin) / curr_erasesize;
+ tmp64 = position - begin;
+ do_div(tmp64, curr_erasesize);
+ erase_region_p->numblocks = tmp64;
}
return &concat->mtd;
mtd->index = i;
mtd->usecount = 0;
+ if (is_power_of_2(mtd->erasesize))
+ mtd->erasesize_shift = ffs(mtd->erasesize) - 1;
+ else
+ mtd->erasesize_shift = 0;
+
+ if (is_power_of_2(mtd->writesize))
+ mtd->writesize_shift = ffs(mtd->writesize) - 1;
+ else
+ mtd->writesize_shift = 0;
+
+ mtd->erasesize_mask = (1 << mtd->erasesize_shift) - 1;
+ mtd->writesize_mask = (1 << mtd->writesize_shift) - 1;
+
/* Some chips always power up locked. Unlock them now */
if ((mtd->flags & MTD_WRITEABLE)
&& (mtd->flags & MTD_POWERUP_LOCK) && mtd->unlock) {
if (!this)
return 0;
- return sprintf(buf, "mtd%d: %8.8x %8.8x \"%s\"\n", i, this->size,
+ return sprintf(buf, "mtd%d: %8.8llx %8.8x \"%s\"\n", i,
+ (unsigned long long)this->size,
this->erasesize, this->name);
}
if (ret) {
set_current_state(TASK_RUNNING);
remove_wait_queue(&wait_q, &wait);
- printk (KERN_WARNING "mtdoops: erase of region [0x%x, 0x%x] "
+ printk (KERN_WARNING "mtdoops: erase of region [0x%llx, 0x%llx] "
"on \"%s\" failed\n",
- erase.addr, erase.len, mtd->name);
+ (unsigned long long)erase.addr, (unsigned long long)erase.len, mtd->name);
return ret;
}
}
cxt->mtd = mtd;
- cxt->oops_pages = mtd->size / OOPS_PAGE_SIZE;
+ if (mtd->size > INT_MAX)
+ cxt->oops_pages = INT_MAX / OOPS_PAGE_SIZE;
+ else
+ cxt->oops_pages = (int)mtd->size / OOPS_PAGE_SIZE;
find_next_position(cxt);
struct mtd_part {
struct mtd_info mtd;
struct mtd_info *master;
- u_int32_t offset;
+ uint64_t offset;
int index;
struct list_head list;
int registered;
}
EXPORT_SYMBOL_GPL(mtd_erase_callback);
-static int part_lock(struct mtd_info *mtd, loff_t ofs, size_t len)
+static int part_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
struct mtd_part *part = PART(mtd);
if ((len + ofs) > mtd->size)
return part->master->lock(part->master, ofs + part->offset, len);
}
-static int part_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
+static int part_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
struct mtd_part *part = PART(mtd);
if ((len + ofs) > mtd->size)
static struct mtd_part *add_one_partition(struct mtd_info *master,
const struct mtd_partition *part, int partno,
- u_int32_t cur_offset)
+ uint64_t cur_offset)
{
struct mtd_part *slave;
slave->offset = cur_offset;
if (slave->offset == MTDPART_OFS_NXTBLK) {
slave->offset = cur_offset;
- if ((cur_offset % master->erasesize) != 0) {
+ if (mtd_mod_by_eb(cur_offset, master) != 0) {
/* Round up to next erasesize */
- slave->offset = ((cur_offset / master->erasesize) + 1) * master->erasesize;
+ slave->offset = (mtd_div_by_eb(cur_offset, master) + 1) * master->erasesize;
printk(KERN_NOTICE "Moving partition %d: "
- "0x%08x -> 0x%08x\n", partno,
- cur_offset, slave->offset);
+ "0x%012llx -> 0x%012llx\n", partno,
+ (unsigned long long)cur_offset, (unsigned long long)slave->offset);
}
}
if (slave->mtd.size == MTDPART_SIZ_FULL)
slave->mtd.size = master->size - slave->offset;
- printk(KERN_NOTICE "0x%08x-0x%08x : \"%s\"\n", slave->offset,
- slave->offset + slave->mtd.size, slave->mtd.name);
+ printk(KERN_NOTICE "0x%012llx-0x%012llx : \"%s\"\n", (unsigned long long)slave->offset,
+ (unsigned long long)(slave->offset + slave->mtd.size), slave->mtd.name);
/* let's do some sanity checks */
if (slave->offset >= master->size) {
}
if (slave->offset + slave->mtd.size > master->size) {
slave->mtd.size = master->size - slave->offset;
- printk(KERN_WARNING"mtd: partition \"%s\" extends beyond the end of device \"%s\" -- size truncated to %#x\n",
- part->name, master->name, slave->mtd.size);
+ printk(KERN_WARNING"mtd: partition \"%s\" extends beyond the end of device \"%s\" -- size truncated to %#llx\n",
+ part->name, master->name, (unsigned long long)slave->mtd.size);
}
if (master->numeraseregions > 1) {
/* Deal with variable erase size stuff */
int i, max = master->numeraseregions;
- u32 end = slave->offset + slave->mtd.size;
+ u64 end = slave->offset + slave->mtd.size;
struct mtd_erase_region_info *regions = master->eraseregions;
/* Find the first erase regions which is part of this
}
if ((slave->mtd.flags & MTD_WRITEABLE) &&
- (slave->offset % slave->mtd.erasesize)) {
+ mtd_mod_by_eb(slave->offset, &slave->mtd)) {
/* Doesn't start on a boundary of major erase size */
/* FIXME: Let it be writable if it is on a boundary of
* _minor_ erase size though */
part->name);
}
if ((slave->mtd.flags & MTD_WRITEABLE) &&
- (slave->mtd.size % slave->mtd.erasesize)) {
+ mtd_mod_by_eb(slave->mtd.size, &slave->mtd)) {
slave->mtd.flags &= ~MTD_WRITEABLE;
printk(KERN_WARNING"mtd: partition \"%s\" doesn't end on an erase block -- force read-only\n",
part->name);
slave->mtd.ecclayout = master->ecclayout;
if (master->block_isbad) {
- uint32_t offs = 0;
+ uint64_t offs = 0;
while (offs < slave->mtd.size) {
if (master->block_isbad(master,
int nbparts)
{
struct mtd_part *slave;
- u_int32_t cur_offset = 0;
+ uint64_t cur_offset = 0;
int i;
printk(KERN_NOTICE "Creating %d MTD partitions on \"%s\":\n", nbparts, master->name);
incorrect ECC generation, and if using these, the default of
software ECC is preferable.
+config MTD_NAND_NDFC
+ tristate "NDFC NanD Flash Controller"
+ depends on 4xx
+ select MTD_NAND_ECC_SMC
+ help
+ NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs
+
config MTD_NAND_S3C2410_CLKSTOP
bool "S3C2410 NAND IDLE clock stop"
depends on MTD_NAND_S3C2410
goto error;
al->write_out = usb_sndbulkpipe(al->dev,
- ep_wr->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+ usb_endpoint_num(ep_wr));
al->bulk_in = usb_rcvbulkpipe(al->dev,
- ep_in->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+ usb_endpoint_num(ep_in));
al->bulk_out = usb_sndbulkpipe(al->dev,
- ep_out->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+ usb_endpoint_num(ep_out));
/* second device is identical up to now */
memcpy(al+1, al, sizeof(*al));
module_param_array(timing, int, &numtimings, 0644);
#ifdef CONFIG_MTD_PARTITIONS
-static const char *part_probes[] = { "RedBoot", NULL };
+static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL };
#endif
/* Hrm. Why isn't this already conditional on something in the struct device? */
add_mtd_device(mtd);
#ifdef CONFIG_MTD_PARTITIONS
+#ifdef CONFIG_MTD_CMDLINE_PARTS
+ mtd->name = "cafe_nand";
+#endif
nr_parts = parse_mtd_partitions(mtd, part_probes, &parts, 0);
if (nr_parts > 0) {
cafe->parts = parts;
- dev_info(&cafe->pdev->dev, "%d RedBoot partitions found\n", nr_parts);
+ dev_info(&cafe->pdev->dev, "%d partitions found\n", nr_parts);
add_mtd_partitions(mtd, parts, nr_parts);
}
#endif
/* Fill in fsl_elbc_mtd structure */
priv->mtd.priv = chip;
priv->mtd.owner = THIS_MODULE;
- priv->fmr = 0; /* rest filled in later */
+
+ /* Set the ECCM according to the settings in bootloader.*/
+ priv->fmr = in_be32(&lbc->fmr) & FMR_ECCM;
/* fill in nand_chip structure */
/* set up function call table */
int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
int allowbbt)
{
- int page, len, status, pages_per_block, ret, chipnr;
+ int page, status, pages_per_block, ret, chipnr;
struct nand_chip *chip = mtd->priv;
- int rewrite_bbt[NAND_MAX_CHIPS]={0};
+ loff_t rewrite_bbt[NAND_MAX_CHIPS]={0};
unsigned int bbt_masked_page = 0xffffffff;
+ loff_t len;
- DEBUG(MTD_DEBUG_LEVEL3, "nand_erase: start = 0x%08x, len = %i\n",
- (unsigned int)instr->addr, (unsigned int)instr->len);
+ DEBUG(MTD_DEBUG_LEVEL3, "nand_erase: start = 0x%012llx, len = %llu\n",
+ (unsigned long long)instr->addr, (unsigned long long)instr->len);
/* Start address must align on block boundary */
if (instr->addr & ((1 << chip->phys_erase_shift) - 1)) {
DEBUG(MTD_DEBUG_LEVEL0, "nand_erase: "
"Failed erase, page 0x%08x\n", page);
instr->state = MTD_ERASE_FAILED;
- instr->fail_addr = (page << chip->page_shift);
+ instr->fail_addr =
+ ((loff_t)page << chip->page_shift);
goto erase_exit;
}
*/
if (bbt_masked_page != 0xffffffff &&
(page & BBT_PAGE_MASK) == bbt_masked_page)
- rewrite_bbt[chipnr] = (page << chip->page_shift);
+ rewrite_bbt[chipnr] =
+ ((loff_t)page << chip->page_shift);
/* Increment page address and decrement length */
len -= (1 << chip->phys_erase_shift);
continue;
/* update the BBT for chip */
DEBUG(MTD_DEBUG_LEVEL0, "nand_erase_nand: nand_update_bbt "
- "(%d:0x%0x 0x%0x)\n", chipnr, rewrite_bbt[chipnr],
+ "(%d:0x%0llx 0x%0x)\n", chipnr, rewrite_bbt[chipnr],
chip->bbt_td->pages[chipnr]);
nand_update_bbt(mtd, rewrite_bbt[chipnr]);
}
if (!mtd->name)
mtd->name = type->name;
- chip->chipsize = type->chipsize << 20;
+ chip->chipsize = (uint64_t)type->chipsize << 20;
/* Newer devices have all the information in additional id bytes */
if (!type->pagesize) {
chip->bbt_erase_shift = chip->phys_erase_shift =
ffs(mtd->erasesize) - 1;
- chip->chip_shift = ffs(chip->chipsize) - 1;
+ if (chip->chipsize & 0xffffffff)
+ chip->chip_shift = ffs((unsigned)chip->chipsize) - 1;
+ else
+ chip->chip_shift = ffs((unsigned)(chip->chipsize >> 32)) + 32 - 1;
/* Set the bad block position */
chip->badblockpos = mtd->writesize > 512 ?
/**
* nand_scan_tail - [NAND Interface] Scan for the NAND device
* @mtd: MTD device structure
- * @maxchips: Number of chips to scan for
*
* This is the second phase of the normal nand_scan() function. It
* fills out all the uninitialized function pointers with the defaults
if (tmp == msk)
continue;
if (reserved_block_code && (tmp == reserved_block_code)) {
- printk(KERN_DEBUG "nand_read_bbt: Reserved block at 0x%08x\n",
- ((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
+ printk(KERN_DEBUG "nand_read_bbt: Reserved block at 0x%012llx\n",
+ (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
this->bbt[offs + (act >> 3)] |= 0x2 << (act & 0x06);
mtd->ecc_stats.bbtblocks++;
continue;
}
/* Leave it for now, if its matured we can move this
* message to MTD_DEBUG_LEVEL0 */
- printk(KERN_DEBUG "nand_read_bbt: Bad block at 0x%08x\n",
- ((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
+ printk(KERN_DEBUG "nand_read_bbt: Bad block at 0x%012llx\n",
+ (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
/* Factory marked bad or worn out ? */
if (tmp == 0)
this->bbt[offs + (act >> 3)] |= 0x3 << (act & 0x06);
/* Read the primary version, if available */
if (td->options & NAND_BBT_VERSION) {
- scan_read_raw(mtd, buf, td->pages[0] << this->page_shift,
+ scan_read_raw(mtd, buf, (loff_t)td->pages[0] << this->page_shift,
mtd->writesize);
td->version[0] = buf[mtd->writesize + td->veroffs];
printk(KERN_DEBUG "Bad block table at page %d, version 0x%02X\n",
/* Read the mirror version, if available */
if (md && (md->options & NAND_BBT_VERSION)) {
- scan_read_raw(mtd, buf, md->pages[0] << this->page_shift,
+ scan_read_raw(mtd, buf, (loff_t)md->pages[0] << this->page_shift,
mtd->writesize);
md->version[0] = buf[mtd->writesize + md->veroffs];
printk(KERN_DEBUG "Bad block table at page %d, version 0x%02X\n",
numblocks = this->chipsize >> (this->bbt_erase_shift - 1);
startblock = chip * numblocks;
numblocks += startblock;
- from = startblock << (this->bbt_erase_shift - 1);
+ from = (loff_t)startblock << (this->bbt_erase_shift - 1);
}
for (i = startblock; i < numblocks;) {
if (ret) {
this->bbt[i >> 3] |= 0x03 << (i & 0x6);
- printk(KERN_WARNING "Bad eraseblock %d at 0x%08x\n",
- i >> 1, (unsigned int)from);
+ printk(KERN_WARNING "Bad eraseblock %d at 0x%012llx\n",
+ i >> 1, (unsigned long long)from);
mtd->ecc_stats.badblocks++;
}
for (block = 0; block < td->maxblocks; block++) {
int actblock = startblock + dir * block;
- loff_t offs = actblock << this->bbt_erase_shift;
+ loff_t offs = (loff_t)actblock << this->bbt_erase_shift;
/* Read first page */
scan_read_raw(mtd, buf, offs, mtd->writesize);
memset(&einfo, 0, sizeof(einfo));
einfo.mtd = mtd;
- einfo.addr = (unsigned long)to;
+ einfo.addr = to;
einfo.len = 1 << this->bbt_erase_shift;
res = nand_erase_nand(mtd, &einfo, 1);
if (res < 0)
if (res < 0)
goto outerr;
- printk(KERN_DEBUG "Bad block table written to 0x%08x, version "
- "0x%02X\n", (unsigned int)to, td->version[chip]);
+ printk(KERN_DEBUG "Bad block table written to 0x%012llx, version "
+ "0x%02X\n", (unsigned long long)to, td->version[chip]);
/* Mark it as used */
td->pages[chip] = page;
newval = oldval | (0x2 << (block & 0x06));
this->bbt[(block >> 3)] = newval;
if ((oldval != newval) && td->reserved_block_code)
- nand_update_bbt(mtd, block << (this->bbt_erase_shift - 1));
+ nand_update_bbt(mtd, (loff_t)block << (this->bbt_erase_shift - 1));
continue;
}
update = 0;
new ones have been marked, then we need to update the stored
bbts. This should only happen once. */
if (update && td->reserved_block_code)
- nand_update_bbt(mtd, (block - 2) << (this->bbt_erase_shift - 1));
+ nand_update_bbt(mtd, (loff_t)(block - 2) << (this->bbt_erase_shift - 1));
}
}
if (!this->bbt || !td)
return -EINVAL;
- len = mtd->size >> (this->bbt_erase_shift + 2);
/* Allocate a temporary buffer for one eraseblock incl. oob */
len = (1 << this->bbt_erase_shift);
len += (len >> this->page_shift) * mtd->oobsize;
#include <linux/delay.h>
#include <linux/list.h>
#include <linux/random.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/pagemap.h>
/* Default simulator parameters values */
#if !defined(CONFIG_NANDSIM_FIRST_ID_BYTE) || \
static char *gravepages = NULL;
static unsigned int rptwear = 0;
static unsigned int overridesize = 0;
+static char *cache_file = NULL;
module_param(first_id_byte, uint, 0400);
module_param(second_id_byte, uint, 0400);
module_param(gravepages, charp, 0400);
module_param(rptwear, uint, 0400);
module_param(overridesize, uint, 0400);
+module_param(cache_file, charp, 0400);
MODULE_PARM_DESC(first_id_byte, "The first byte returned by NAND Flash 'read ID' command (manufacturer ID)");
MODULE_PARM_DESC(second_id_byte, "The second byte returned by NAND Flash 'read ID' command (chip ID)");
MODULE_PARM_DESC(third_id_byte, "The third byte returned by NAND Flash 'read ID' command");
MODULE_PARM_DESC(fourth_id_byte, "The fourth byte returned by NAND Flash 'read ID' command");
-MODULE_PARM_DESC(access_delay, "Initial page access delay (microiseconds)");
+MODULE_PARM_DESC(access_delay, "Initial page access delay (microseconds)");
MODULE_PARM_DESC(programm_delay, "Page programm delay (microseconds");
MODULE_PARM_DESC(erase_delay, "Sector erase delay (milliseconds)");
MODULE_PARM_DESC(output_cycle, "Word output (from flash) time (nanodeconds)");
MODULE_PARM_DESC(overridesize, "Specifies the NAND Flash size overriding the ID bytes. "
"The size is specified in erase blocks and as the exponent of a power of two"
" e.g. 5 means a size of 32 erase blocks");
+MODULE_PARM_DESC(cache_file, "File to use to cache nand pages instead of memory");
/* The largest possible page size */
#define NS_LARGEST_PAGE_SIZE 2048
*/
#define NS_MAX_PREVSTATES 1
+/* Maximum page cache pages needed to read or write a NAND page to the cache_file */
+#define NS_MAX_HELD_PAGES 16
+
/*
* A union to represent flash memory contents and flash buffer.
*/
/* The simulated NAND flash pages array */
union ns_mem *pages;
+ /* Slab allocator for nand pages */
+ struct kmem_cache *nand_pages_slab;
+
/* Internal buffer of page + OOB size bytes */
union ns_mem buf;
int ale; /* address Latch Enable */
int wp; /* write Protect */
} lines;
+
+ /* Fields needed when using a cache file */
+ struct file *cfile; /* Open file */
+ unsigned char *pages_written; /* Which pages have been written */
+ void *file_buf;
+ struct page *held_pages[NS_MAX_HELD_PAGES];
+ int held_cnt;
};
/*
static u_char ns_verify_buf[NS_LARGEST_PAGE_SIZE];
/*
- * Allocate array of page pointers and initialize the array to NULL
- * pointers.
+ * Allocate array of page pointers, create slab allocation for an array
+ * and initialize the array by NULL pointers.
*
* RETURNS: 0 if success, -ENOMEM if memory alloc fails.
*/
static int alloc_device(struct nandsim *ns)
{
- int i;
+ struct file *cfile;
+ int i, err;
+
+ if (cache_file) {
+ cfile = filp_open(cache_file, O_CREAT | O_RDWR | O_LARGEFILE, 0600);
+ if (IS_ERR(cfile))
+ return PTR_ERR(cfile);
+ if (!cfile->f_op || (!cfile->f_op->read && !cfile->f_op->aio_read)) {
+ NS_ERR("alloc_device: cache file not readable\n");
+ err = -EINVAL;
+ goto err_close;
+ }
+ if (!cfile->f_op->write && !cfile->f_op->aio_write) {
+ NS_ERR("alloc_device: cache file not writeable\n");
+ err = -EINVAL;
+ goto err_close;
+ }
+ ns->pages_written = vmalloc(ns->geom.pgnum);
+ if (!ns->pages_written) {
+ NS_ERR("alloc_device: unable to allocate pages written array\n");
+ err = -ENOMEM;
+ goto err_close;
+ }
+ ns->file_buf = kmalloc(ns->geom.pgszoob, GFP_KERNEL);
+ if (!ns->file_buf) {
+ NS_ERR("alloc_device: unable to allocate file buf\n");
+ err = -ENOMEM;
+ goto err_free;
+ }
+ ns->cfile = cfile;
+ memset(ns->pages_written, 0, ns->geom.pgnum);
+ return 0;
+ }
ns->pages = vmalloc(ns->geom.pgnum * sizeof(union ns_mem));
if (!ns->pages) {
- NS_ERR("alloc_map: unable to allocate page array\n");
+ NS_ERR("alloc_device: unable to allocate page array\n");
return -ENOMEM;
}
for (i = 0; i < ns->geom.pgnum; i++) {
ns->pages[i].byte = NULL;
}
+ ns->nand_pages_slab = kmem_cache_create("nandsim",
+ ns->geom.pgszoob, 0, 0, NULL);
+ if (!ns->nand_pages_slab) {
+ NS_ERR("cache_create: unable to create kmem_cache\n");
+ return -ENOMEM;
+ }
return 0;
+
+err_free:
+ vfree(ns->pages_written);
+err_close:
+ filp_close(cfile, NULL);
+ return err;
}
/*
{
int i;
+ if (ns->cfile) {
+ kfree(ns->file_buf);
+ vfree(ns->pages_written);
+ filp_close(ns->cfile, NULL);
+ return;
+ }
+
if (ns->pages) {
for (i = 0; i < ns->geom.pgnum; i++) {
if (ns->pages[i].byte)
- kfree(ns->pages[i].byte);
+ kmem_cache_free(ns->nand_pages_slab,
+ ns->pages[i].byte);
}
+ kmem_cache_destroy(ns->nand_pages_slab);
vfree(ns->pages);
}
}
return kstrdup(buf, GFP_KERNEL);
}
-static u_int64_t divide(u_int64_t n, u_int32_t d)
+static uint64_t divide(uint64_t n, uint32_t d)
{
do_div(n, d);
return n;
struct nand_chip *chip = (struct nand_chip *)mtd->priv;
struct nandsim *ns = (struct nandsim *)(chip->priv);
int i, ret = 0;
- u_int64_t remains;
- u_int64_t next_offset;
+ uint64_t remains;
+ uint64_t next_offset;
if (NS_IS_INITIALIZED(ns)) {
NS_ERR("init_nandsim: nandsim is already initialized\n");
remains = ns->geom.totsz;
next_offset = 0;
for (i = 0; i < parts_num; ++i) {
- u_int64_t part_sz = (u_int64_t)parts[i] * ns->geom.secsz;
+ uint64_t part_sz = (uint64_t)parts[i] * ns->geom.secsz;
if (!part_sz || part_sz > remains) {
NS_ERR("bad partition size.\n");
return -1;
}
+static void put_pages(struct nandsim *ns)
+{
+ int i;
+
+ for (i = 0; i < ns->held_cnt; i++)
+ page_cache_release(ns->held_pages[i]);
+}
+
+/* Get page cache pages in advance to provide NOFS memory allocation */
+static int get_pages(struct nandsim *ns, struct file *file, size_t count, loff_t pos)
+{
+ pgoff_t index, start_index, end_index;
+ struct page *page;
+ struct address_space *mapping = file->f_mapping;
+
+ start_index = pos >> PAGE_CACHE_SHIFT;
+ end_index = (pos + count - 1) >> PAGE_CACHE_SHIFT;
+ if (end_index - start_index + 1 > NS_MAX_HELD_PAGES)
+ return -EINVAL;
+ ns->held_cnt = 0;
+ for (index = start_index; index <= end_index; index++) {
+ page = find_get_page(mapping, index);
+ if (page == NULL) {
+ page = find_or_create_page(mapping, index, GFP_NOFS);
+ if (page == NULL) {
+ write_inode_now(mapping->host, 1);
+ page = find_or_create_page(mapping, index, GFP_NOFS);
+ }
+ if (page == NULL) {
+ put_pages(ns);
+ return -ENOMEM;
+ }
+ unlock_page(page);
+ }
+ ns->held_pages[ns->held_cnt++] = page;
+ }
+ return 0;
+}
+
+static int set_memalloc(void)
+{
+ if (current->flags & PF_MEMALLOC)
+ return 0;
+ current->flags |= PF_MEMALLOC;
+ return 1;
+}
+
+static void clear_memalloc(int memalloc)
+{
+ if (memalloc)
+ current->flags &= ~PF_MEMALLOC;
+}
+
+static ssize_t read_file(struct nandsim *ns, struct file *file, void *buf, size_t count, loff_t *pos)
+{
+ mm_segment_t old_fs;
+ ssize_t tx;
+ int err, memalloc;
+
+ err = get_pages(ns, file, count, *pos);
+ if (err)
+ return err;
+ old_fs = get_fs();
+ set_fs(get_ds());
+ memalloc = set_memalloc();
+ tx = vfs_read(file, (char __user *)buf, count, pos);
+ clear_memalloc(memalloc);
+ set_fs(old_fs);
+ put_pages(ns);
+ return tx;
+}
+
+static ssize_t write_file(struct nandsim *ns, struct file *file, void *buf, size_t count, loff_t *pos)
+{
+ mm_segment_t old_fs;
+ ssize_t tx;
+ int err, memalloc;
+
+ err = get_pages(ns, file, count, *pos);
+ if (err)
+ return err;
+ old_fs = get_fs();
+ set_fs(get_ds());
+ memalloc = set_memalloc();
+ tx = vfs_write(file, (char __user *)buf, count, pos);
+ clear_memalloc(memalloc);
+ set_fs(old_fs);
+ put_pages(ns);
+ return tx;
+}
+
/*
* Returns a pointer to the current page.
*/
return NS_GET_PAGE(ns)->byte + ns->regs.column + ns->regs.off;
}
+int do_read_error(struct nandsim *ns, int num)
+{
+ unsigned int page_no = ns->regs.row;
+
+ if (read_error(page_no)) {
+ int i;
+ memset(ns->buf.byte, 0xFF, num);
+ for (i = 0; i < num; ++i)
+ ns->buf.byte[i] = random32();
+ NS_WARN("simulating read error in page %u\n", page_no);
+ return 1;
+ }
+ return 0;
+}
+
+void do_bit_flips(struct nandsim *ns, int num)
+{
+ if (bitflips && random32() < (1 << 22)) {
+ int flips = 1;
+ if (bitflips > 1)
+ flips = (random32() % (int) bitflips) + 1;
+ while (flips--) {
+ int pos = random32() % (num * 8);
+ ns->buf.byte[pos / 8] ^= (1 << (pos % 8));
+ NS_WARN("read_page: flipping bit %d in page %d "
+ "reading from %d ecc: corrected=%u failed=%u\n",
+ pos, ns->regs.row, ns->regs.column + ns->regs.off,
+ nsmtd->ecc_stats.corrected, nsmtd->ecc_stats.failed);
+ }
+ }
+}
+
/*
* Fill the NAND buffer with data read from the specified page.
*/
{
union ns_mem *mypage;
+ if (ns->cfile) {
+ if (!ns->pages_written[ns->regs.row]) {
+ NS_DBG("read_page: page %d not written\n", ns->regs.row);
+ memset(ns->buf.byte, 0xFF, num);
+ } else {
+ loff_t pos;
+ ssize_t tx;
+
+ NS_DBG("read_page: page %d written, reading from %d\n",
+ ns->regs.row, ns->regs.column + ns->regs.off);
+ if (do_read_error(ns, num))
+ return;
+ pos = (loff_t)ns->regs.row * ns->geom.pgszoob + ns->regs.column + ns->regs.off;
+ tx = read_file(ns, ns->cfile, ns->buf.byte, num, &pos);
+ if (tx != num) {
+ NS_ERR("read_page: read error for page %d ret %ld\n", ns->regs.row, (long)tx);
+ return;
+ }
+ do_bit_flips(ns, num);
+ }
+ return;
+ }
+
mypage = NS_GET_PAGE(ns);
if (mypage->byte == NULL) {
NS_DBG("read_page: page %d not allocated\n", ns->regs.row);
memset(ns->buf.byte, 0xFF, num);
} else {
- unsigned int page_no = ns->regs.row;
NS_DBG("read_page: page %d allocated, reading from %d\n",
ns->regs.row, ns->regs.column + ns->regs.off);
- if (read_error(page_no)) {
- int i;
- memset(ns->buf.byte, 0xFF, num);
- for (i = 0; i < num; ++i)
- ns->buf.byte[i] = random32();
- NS_WARN("simulating read error in page %u\n", page_no);
+ if (do_read_error(ns, num))
return;
- }
memcpy(ns->buf.byte, NS_PAGE_BYTE_OFF(ns), num);
- if (bitflips && random32() < (1 << 22)) {
- int flips = 1;
- if (bitflips > 1)
- flips = (random32() % (int) bitflips) + 1;
- while (flips--) {
- int pos = random32() % (num * 8);
- ns->buf.byte[pos / 8] ^= (1 << (pos % 8));
- NS_WARN("read_page: flipping bit %d in page %d "
- "reading from %d ecc: corrected=%u failed=%u\n",
- pos, ns->regs.row, ns->regs.column + ns->regs.off,
- nsmtd->ecc_stats.corrected, nsmtd->ecc_stats.failed);
- }
- }
+ do_bit_flips(ns, num);
}
}
union ns_mem *mypage;
int i;
+ if (ns->cfile) {
+ for (i = 0; i < ns->geom.pgsec; i++)
+ if (ns->pages_written[ns->regs.row + i]) {
+ NS_DBG("erase_sector: freeing page %d\n", ns->regs.row + i);
+ ns->pages_written[ns->regs.row + i] = 0;
+ }
+ return;
+ }
+
mypage = NS_GET_PAGE(ns);
for (i = 0; i < ns->geom.pgsec; i++) {
if (mypage->byte != NULL) {
NS_DBG("erase_sector: freeing page %d\n", ns->regs.row+i);
- kfree(mypage->byte);
+ kmem_cache_free(ns->nand_pages_slab, mypage->byte);
mypage->byte = NULL;
}
mypage++;
union ns_mem *mypage;
u_char *pg_off;
+ if (ns->cfile) {
+ loff_t off, pos;
+ ssize_t tx;
+ int all;
+
+ NS_DBG("prog_page: writing page %d\n", ns->regs.row);
+ pg_off = ns->file_buf + ns->regs.column + ns->regs.off;
+ off = (loff_t)ns->regs.row * ns->geom.pgszoob + ns->regs.column + ns->regs.off;
+ if (!ns->pages_written[ns->regs.row]) {
+ all = 1;
+ memset(ns->file_buf, 0xff, ns->geom.pgszoob);
+ } else {
+ all = 0;
+ pos = off;
+ tx = read_file(ns, ns->cfile, pg_off, num, &pos);
+ if (tx != num) {
+ NS_ERR("prog_page: read error for page %d ret %ld\n", ns->regs.row, (long)tx);
+ return -1;
+ }
+ }
+ for (i = 0; i < num; i++)
+ pg_off[i] &= ns->buf.byte[i];
+ if (all) {
+ pos = (loff_t)ns->regs.row * ns->geom.pgszoob;
+ tx = write_file(ns, ns->cfile, ns->file_buf, ns->geom.pgszoob, &pos);
+ if (tx != ns->geom.pgszoob) {
+ NS_ERR("prog_page: write error for page %d ret %ld\n", ns->regs.row, (long)tx);
+ return -1;
+ }
+ ns->pages_written[ns->regs.row] = 1;
+ } else {
+ pos = off;
+ tx = write_file(ns, ns->cfile, pg_off, num, &pos);
+ if (tx != num) {
+ NS_ERR("prog_page: write error for page %d ret %ld\n", ns->regs.row, (long)tx);
+ return -1;
+ }
+ }
+ return 0;
+ }
+
mypage = NS_GET_PAGE(ns);
if (mypage->byte == NULL) {
NS_DBG("prog_page: allocating page %d\n", ns->regs.row);
/*
* We allocate memory with GFP_NOFS because a flash FS may
* utilize this. If it is holding an FS lock, then gets here,
- * then kmalloc runs writeback which goes to the FS again
- * and deadlocks. This was seen in practice.
+ * then kernel memory alloc runs writeback which goes to the FS
+ * again and deadlocks. This was seen in practice.
*/
- mypage->byte = kmalloc(ns->geom.pgszoob, GFP_NOFS);
+ mypage->byte = kmem_cache_alloc(ns->nand_pages_slab, GFP_NOFS);
if (mypage->byte == NULL) {
NS_ERR("prog_page: error allocating memory for page %d\n", ns->regs.row);
return -1;
/* Check if chip is expecting command */
if (NS_STATE(ns->nxstate) != STATE_UNKNOWN && !(ns->nxstate & STATE_CMD_MASK)) {
- /*
- * We are in situation when something else (not command)
- * was expected but command was input. In this case ignore
- * previous command(s)/state(s) and accept the last one.
- */
- NS_WARN("write_byte: command (%#x) wasn't expected, expected state is %s, "
- "ignore previous states\n", (uint)byte, get_state_name(ns->nxstate));
+ /* Do not warn if only 2 id bytes are read */
+ if (!(ns->regs.command == NAND_CMD_READID &&
+ NS_STATE(ns->state) == STATE_DATAOUT_ID && ns->regs.count == 2)) {
+ /*
+ * We are in situation when something else (not command)
+ * was expected but command was input. In this case ignore
+ * previous command(s)/state(s) and accept the last one.
+ */
+ NS_WARN("write_byte: command (%#x) wasn't expected, expected state is %s, "
+ "ignore previous states\n", (uint)byte, get_state_name(ns->nxstate));
+ }
switch_to_ready_state(ns, NS_STATUS_FAILED(ns));
}
}
if (overridesize) {
- u_int64_t new_size = (u_int64_t)nsmtd->erasesize << overridesize;
+ uint64_t new_size = (uint64_t)nsmtd->erasesize << overridesize;
if (new_size >> overridesize != nsmtd->erasesize) {
NS_ERR("overridesize is too big\n");
goto err_exit;
* drivers/mtd/ndfc.c
*
* Overview:
- * Platform independend driver for NDFC (NanD Flash Controller)
+ * Platform independent driver for NDFC (NanD Flash Controller)
* integrated into EP440 cores
*
+ * Ported to an OF platform driver by Sean MacLennan
+ *
+ * The NDFC supports multiple chips, but this driver only supports a
+ * single chip since I do not have access to any boards with
+ * multiple chips.
+ *
* Author: Thomas Gleixner
*
* Copyright 2006 IBM
+ * Copyright 2008 PIKA Technologies
+ * Sean MacLennan <smaclennan@pikatech.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
#include <linux/mtd/partitions.h>
#include <linux/mtd/ndfc.h>
#include <linux/mtd/mtd.h>
-#include <linux/platform_device.h>
-
+#include <linux/of_platform.h>
#include <asm/io.h>
-#ifdef CONFIG_40x
-#include <asm/ibm405.h>
-#else
-#include <asm/ibm44x.h>
-#endif
-
-struct ndfc_nand_mtd {
- struct mtd_info mtd;
- struct nand_chip chip;
- struct platform_nand_chip *pl_chip;
-};
-static struct ndfc_nand_mtd ndfc_mtd[NDFC_MAX_BANKS];
struct ndfc_controller {
- void __iomem *ndfcbase;
- struct nand_hw_control ndfc_control;
- atomic_t childs_active;
+ struct of_device *ofdev;
+ void __iomem *ndfcbase;
+ struct mtd_info mtd;
+ struct nand_chip chip;
+ int chip_select;
+ struct nand_hw_control ndfc_control;
+#ifdef CONFIG_MTD_PARTITIONS
+ struct mtd_partition *parts;
+#endif
};
static struct ndfc_controller ndfc_ctrl;
{
uint32_t ccr;
struct ndfc_controller *ndfc = &ndfc_ctrl;
- struct nand_chip *nandchip = mtd->priv;
- struct ndfc_nand_mtd *nandmtd = nandchip->priv;
- struct platform_nand_chip *pchip = nandmtd->pl_chip;
- ccr = __raw_readl(ndfc->ndfcbase + NDFC_CCR);
+ ccr = in_be32(ndfc->ndfcbase + NDFC_CCR);
if (chip >= 0) {
ccr &= ~NDFC_CCR_BS_MASK;
- ccr |= NDFC_CCR_BS(chip + pchip->chip_offset);
+ ccr |= NDFC_CCR_BS(chip + ndfc->chip_select);
} else
ccr |= NDFC_CCR_RESET_CE;
- __raw_writel(ccr, ndfc->ndfcbase + NDFC_CCR);
+ out_be32(ndfc->ndfcbase + NDFC_CCR, ccr);
}
static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
struct ndfc_controller *ndfc = &ndfc_ctrl;
- return __raw_readl(ndfc->ndfcbase + NDFC_STAT) & NDFC_STAT_IS_READY;
+ return in_be32(ndfc->ndfcbase + NDFC_STAT) & NDFC_STAT_IS_READY;
}
static void ndfc_enable_hwecc(struct mtd_info *mtd, int mode)
uint32_t ccr;
struct ndfc_controller *ndfc = &ndfc_ctrl;
- ccr = __raw_readl(ndfc->ndfcbase + NDFC_CCR);
+ ccr = in_be32(ndfc->ndfcbase + NDFC_CCR);
ccr |= NDFC_CCR_RESET_ECC;
- __raw_writel(ccr, ndfc->ndfcbase + NDFC_CCR);
+ out_be32(ndfc->ndfcbase + NDFC_CCR, ccr);
wmb();
}
uint8_t *p = (uint8_t *)&ecc;
wmb();
- ecc = __raw_readl(ndfc->ndfcbase + NDFC_ECC);
- ecc_code[0] = p[1];
- ecc_code[1] = p[2];
+ ecc = in_be32(ndfc->ndfcbase + NDFC_ECC);
+ /* The NDFC uses Smart Media (SMC) bytes order */
+ ecc_code[0] = p[2];
+ ecc_code[1] = p[1];
ecc_code[2] = p[3];
return 0;
uint32_t *p = (uint32_t *) buf;
for(;len > 0; len -= 4)
- *p++ = __raw_readl(ndfc->ndfcbase + NDFC_DATA);
+ *p++ = in_be32(ndfc->ndfcbase + NDFC_DATA);
}
static void ndfc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
uint32_t *p = (uint32_t *) buf;
for(;len > 0; len -= 4)
- __raw_writel(*p++, ndfc->ndfcbase + NDFC_DATA);
+ out_be32(ndfc->ndfcbase + NDFC_DATA, *p++);
}
static int ndfc_verify_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
uint32_t *p = (uint32_t *) buf;
for(;len > 0; len -= 4)
- if (*p++ != __raw_readl(ndfc->ndfcbase + NDFC_DATA))
+ if (*p++ != in_be32(ndfc->ndfcbase + NDFC_DATA))
return -EFAULT;
return 0;
}
/*
* Initialize chip structure
*/
-static void ndfc_chip_init(struct ndfc_nand_mtd *mtd)
+static int ndfc_chip_init(struct ndfc_controller *ndfc,
+ struct device_node *node)
{
- struct ndfc_controller *ndfc = &ndfc_ctrl;
- struct nand_chip *chip = &mtd->chip;
+#ifdef CONFIG_MTD_PARTITIONS
+#ifdef CONFIG_MTD_CMDLINE_PARTS
+ static const char *part_types[] = { "cmdlinepart", NULL };
+#else
+ static const char *part_types[] = { NULL };
+#endif
+#endif
+ struct device_node *flash_np;
+ struct nand_chip *chip = &ndfc->chip;
+ int ret;
chip->IO_ADDR_R = ndfc->ndfcbase + NDFC_DATA;
chip->IO_ADDR_W = ndfc->ndfcbase + NDFC_DATA;
chip->dev_ready = ndfc_ready;
chip->select_chip = ndfc_select_chip;
chip->chip_delay = 50;
- chip->priv = mtd;
- chip->options = mtd->pl_chip->options;
chip->controller = &ndfc->ndfc_control;
chip->read_buf = ndfc_read_buf;
chip->write_buf = ndfc_write_buf;
chip->ecc.mode = NAND_ECC_HW;
chip->ecc.size = 256;
chip->ecc.bytes = 3;
- chip->ecclayout = chip->ecc.layout = mtd->pl_chip->ecclayout;
- mtd->mtd.priv = chip;
- mtd->mtd.owner = THIS_MODULE;
-}
-
-static int ndfc_chip_probe(struct platform_device *pdev)
-{
- struct platform_nand_chip *nc = pdev->dev.platform_data;
- struct ndfc_chip_settings *settings = nc->priv;
- struct ndfc_controller *ndfc = &ndfc_ctrl;
- struct ndfc_nand_mtd *nandmtd;
-
- if (nc->chip_offset >= NDFC_MAX_BANKS || nc->nr_chips > NDFC_MAX_BANKS)
- return -EINVAL;
-
- /* Set the bank settings */
- __raw_writel(settings->bank_settings,
- ndfc->ndfcbase + NDFC_BCFG0 + (nc->chip_offset << 2));
- nandmtd = &ndfc_mtd[pdev->id];
- if (nandmtd->pl_chip)
- return -EBUSY;
+ ndfc->mtd.priv = chip;
+ ndfc->mtd.owner = THIS_MODULE;
- nandmtd->pl_chip = nc;
- ndfc_chip_init(nandmtd);
-
- /* Scan for chips */
- if (nand_scan(&nandmtd->mtd, nc->nr_chips)) {
- nandmtd->pl_chip = NULL;
+ flash_np = of_get_next_child(node, NULL);
+ if (!flash_np)
return -ENODEV;
+
+ ndfc->mtd.name = kasprintf(GFP_KERNEL, "%s.%s",
+ ndfc->ofdev->dev.bus_id, flash_np->name);
+ if (!ndfc->mtd.name) {
+ ret = -ENOMEM;
+ goto err;
}
-#ifdef CONFIG_MTD_PARTITIONS
- printk("Number of partitions %d\n", nc->nr_partitions);
- if (nc->nr_partitions) {
- /* Add the full device, so complete dumps can be made */
- add_mtd_device(&nandmtd->mtd);
- add_mtd_partitions(&nandmtd->mtd, nc->partitions,
- nc->nr_partitions);
+ ret = nand_scan(&ndfc->mtd, 1);
+ if (ret)
+ goto err;
- } else
-#else
- add_mtd_device(&nandmtd->mtd);
+#ifdef CONFIG_MTD_PARTITIONS
+ ret = parse_mtd_partitions(&ndfc->mtd, part_types, &ndfc->parts, 0);
+ if (ret < 0)
+ goto err;
+
+#ifdef CONFIG_MTD_OF_PARTS
+ if (ret == 0) {
+ ret = of_mtd_parse_partitions(&ndfc->ofdev->dev, flash_np,
+ &ndfc->parts);
+ if (ret < 0)
+ goto err;
+ }
#endif
- atomic_inc(&ndfc->childs_active);
- return 0;
-}
+ if (ret > 0)
+ ret = add_mtd_partitions(&ndfc->mtd, ndfc->parts, ret);
+ else
+#endif
+ ret = add_mtd_device(&ndfc->mtd);
-static int ndfc_chip_remove(struct platform_device *pdev)
-{
- return 0;
+err:
+ of_node_put(flash_np);
+ if (ret)
+ kfree(ndfc->mtd.name);
+ return ret;
}
-static int ndfc_nand_probe(struct platform_device *pdev)
+static int __devinit ndfc_probe(struct of_device *ofdev,
+ const struct of_device_id *match)
{
- struct platform_nand_ctrl *nc = pdev->dev.platform_data;
- struct ndfc_controller_settings *settings = nc->priv;
- struct resource *res = pdev->resource;
struct ndfc_controller *ndfc = &ndfc_ctrl;
- unsigned long long phys = settings->ndfc_erpn | res->start;
+ const u32 *reg;
+ u32 ccr;
+ int err, len;
-#ifndef CONFIG_PHYS_64BIT
- ndfc->ndfcbase = ioremap((phys_addr_t)phys, res->end - res->start + 1);
-#else
- ndfc->ndfcbase = ioremap64(phys, res->end - res->start + 1);
-#endif
+ spin_lock_init(&ndfc->ndfc_control.lock);
+ init_waitqueue_head(&ndfc->ndfc_control.wq);
+ ndfc->ofdev = ofdev;
+ dev_set_drvdata(&ofdev->dev, ndfc);
+
+ /* Read the reg property to get the chip select */
+ reg = of_get_property(ofdev->node, "reg", &len);
+ if (reg == NULL || len != 12) {
+ dev_err(&ofdev->dev, "unable read reg property (%d)\n", len);
+ return -ENOENT;
+ }
+ ndfc->chip_select = reg[0];
+
+ ndfc->ndfcbase = of_iomap(ofdev->node, 0);
if (!ndfc->ndfcbase) {
- printk(KERN_ERR "NDFC: ioremap failed\n");
+ dev_err(&ofdev->dev, "failed to get memory\n");
return -EIO;
}
- __raw_writel(settings->ccr_settings, ndfc->ndfcbase + NDFC_CCR);
+ ccr = NDFC_CCR_BS(ndfc->chip_select);
- spin_lock_init(&ndfc->ndfc_control.lock);
- init_waitqueue_head(&ndfc->ndfc_control.wq);
+ /* It is ok if ccr does not exist - just default to 0 */
+ reg = of_get_property(ofdev->node, "ccr", NULL);
+ if (reg)
+ ccr |= *reg;
- platform_set_drvdata(pdev, ndfc);
+ out_be32(ndfc->ndfcbase + NDFC_CCR, ccr);
- printk("NDFC NAND Driver initialized. Chip-Rev: 0x%08x\n",
- __raw_readl(ndfc->ndfcbase + NDFC_REVID));
+ /* Set the bank settings if given */
+ reg = of_get_property(ofdev->node, "bank-settings", NULL);
+ if (reg) {
+ int offset = NDFC_BCFG0 + (ndfc->chip_select << 2);
+ out_be32(ndfc->ndfcbase + offset, *reg);
+ }
+
+ err = ndfc_chip_init(ndfc, ofdev->node);
+ if (err) {
+ iounmap(ndfc->ndfcbase);
+ return err;
+ }
return 0;
}
-static int ndfc_nand_remove(struct platform_device *pdev)
+static int __devexit ndfc_remove(struct of_device *ofdev)
{
- struct ndfc_controller *ndfc = platform_get_drvdata(pdev);
+ struct ndfc_controller *ndfc = dev_get_drvdata(&ofdev->dev);
- if (atomic_read(&ndfc->childs_active))
- return -EBUSY;
+ nand_release(&ndfc->mtd);
- if (ndfc) {
- platform_set_drvdata(pdev, NULL);
- iounmap(ndfc_ctrl.ndfcbase);
- ndfc_ctrl.ndfcbase = NULL;
- }
return 0;
}
-/* driver device registration */
-
-static struct platform_driver ndfc_chip_driver = {
- .probe = ndfc_chip_probe,
- .remove = ndfc_chip_remove,
- .driver = {
- .name = "ndfc-chip",
- .owner = THIS_MODULE,
- },
+static const struct of_device_id ndfc_match[] = {
+ { .compatible = "ibm,ndfc", },
+ {}
};
+MODULE_DEVICE_TABLE(of, ndfc_match);
-static struct platform_driver ndfc_nand_driver = {
- .probe = ndfc_nand_probe,
- .remove = ndfc_nand_remove,
- .driver = {
- .name = "ndfc-nand",
- .owner = THIS_MODULE,
+static struct of_platform_driver ndfc_driver = {
+ .driver = {
+ .name = "ndfc",
},
+ .match_table = ndfc_match,
+ .probe = ndfc_probe,
+ .remove = __devexit_p(ndfc_remove),
};
static int __init ndfc_nand_init(void)
{
- int ret;
-
- spin_lock_init(&ndfc_ctrl.ndfc_control.lock);
- init_waitqueue_head(&ndfc_ctrl.ndfc_control.wq);
-
- ret = platform_driver_register(&ndfc_nand_driver);
- if (!ret)
- ret = platform_driver_register(&ndfc_chip_driver);
- return ret;
+ return of_register_platform_driver(&ndfc_driver);
}
static void __exit ndfc_nand_exit(void)
{
- platform_driver_unregister(&ndfc_chip_driver);
- platform_driver_unregister(&ndfc_nand_driver);
+ of_unregister_platform_driver(&ndfc_driver);
}
module_init(ndfc_nand_init);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Thomas Gleixner <tglx@linutronix.de>");
-MODULE_DESCRIPTION("Platform driver for NDFC");
-MODULE_ALIAS("platform:ndfc-chip");
-MODULE_ALIAS("platform:ndfc-nand");
+MODULE_DESCRIPTION("OF Platform driver for NDFC");
#define NDTR1_tAR(c) (min((c), 15) << 0)
/* convert nano-seconds to nand flash controller clock cycles */
-#define ns2cycle(ns, clk) (int)(((ns) * (clk / 1000000) / 1000) + 1)
+#define ns2cycle(ns, clk) (int)(((ns) * (clk / 1000000) / 1000) - 1)
static void pxa3xx_nand_set_timing(struct pxa3xx_nand_info *info,
const struct pxa3xx_nand_timing *t)
/* large block, 2 cycles for column address
* row address starts from 3rd cycle
*/
- info->ndcb1 |= (page_addr << 16) | (column & 0xffff);
+ info->ndcb1 |= page_addr << 16;
if (info->row_addr_cycles == 3)
info->ndcb2 = (page_addr >> 16) & 0xff;
} else
/* small block, 1 cycles for column address
* row address starts from 2nd cycle
*/
- info->ndcb1 = (page_addr << 8) | (column & 0xff);
+ info->ndcb1 = page_addr << 8;
if (cmd == cmdset->program)
info->ndcb0 |= NDCB0_CMD_TYPE(1) | NDCB0_AUTO_RS;
* drivers/mtd/nand/sharpsl.c
*
* Copyright (C) 2004 Richard Purdie
+ * Copyright (C) 2008 Dmitry Baryshkov
*
* Based on Sharp's NAND driver sharp_sl.c
*
#include <linux/mtd/nand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
+#include <linux/mtd/sharpsl.h>
#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+
#include <asm/io.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
-static void __iomem *sharpsl_io_base;
-static int sharpsl_phys_base = 0x0C000000;
+struct sharpsl_nand {
+ struct mtd_info mtd;
+ struct nand_chip chip;
+
+ void __iomem *io;
+};
+
+#define mtd_to_sharpsl(_mtd) container_of(_mtd, struct sharpsl_nand, mtd)
/* register offset */
-#define ECCLPLB sharpsl_io_base+0x00 /* line parity 7 - 0 bit */
-#define ECCLPUB sharpsl_io_base+0x04 /* line parity 15 - 8 bit */
-#define ECCCP sharpsl_io_base+0x08 /* column parity 5 - 0 bit */
-#define ECCCNTR sharpsl_io_base+0x0C /* ECC byte counter */
-#define ECCCLRR sharpsl_io_base+0x10 /* cleare ECC */
-#define FLASHIO sharpsl_io_base+0x14 /* Flash I/O */
-#define FLASHCTL sharpsl_io_base+0x18 /* Flash Control */
+#define ECCLPLB 0x00 /* line parity 7 - 0 bit */
+#define ECCLPUB 0x04 /* line parity 15 - 8 bit */
+#define ECCCP 0x08 /* column parity 5 - 0 bit */
+#define ECCCNTR 0x0C /* ECC byte counter */
+#define ECCCLRR 0x10 /* cleare ECC */
+#define FLASHIO 0x14 /* Flash I/O */
+#define FLASHCTL 0x18 /* Flash Control */
/* Flash control bit */
#define FLRYBY (1 << 5)
#define FLCLE (1 << 1)
#define FLCE0 (1 << 0)
-/*
- * MTD structure for SharpSL
- */
-static struct mtd_info *sharpsl_mtd = NULL;
-
-/*
- * Define partitions for flash device
- */
-#define DEFAULT_NUM_PARTITIONS 3
-
-static int nr_partitions;
-static struct mtd_partition sharpsl_nand_default_partition_info[] = {
- {
- .name = "System Area",
- .offset = 0,
- .size = 7 * 1024 * 1024,
- },
- {
- .name = "Root Filesystem",
- .offset = 7 * 1024 * 1024,
- .size = 30 * 1024 * 1024,
- },
- {
- .name = "Home Filesystem",
- .offset = MTDPART_OFS_APPEND,
- .size = MTDPART_SIZ_FULL,
- },
-};
-
/*
* hardware specific access to control-lines
* ctrl:
static void sharpsl_nand_hwcontrol(struct mtd_info *mtd, int cmd,
unsigned int ctrl)
{
+ struct sharpsl_nand *sharpsl = mtd_to_sharpsl(mtd);
struct nand_chip *chip = mtd->priv;
if (ctrl & NAND_CTRL_CHANGE) {
bits ^= 0x11;
- writeb((readb(FLASHCTL) & ~0x17) | bits, FLASHCTL);
+ writeb((readb(sharpsl->io + FLASHCTL) & ~0x17) | bits, sharpsl->io + FLASHCTL);
}
if (cmd != NAND_CMD_NONE)
writeb(cmd, chip->IO_ADDR_W);
}
-static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
-
-static struct nand_bbt_descr sharpsl_bbt = {
- .options = 0,
- .offs = 4,
- .len = 2,
- .pattern = scan_ff_pattern
-};
-
-static struct nand_bbt_descr sharpsl_akita_bbt = {
- .options = 0,
- .offs = 4,
- .len = 1,
- .pattern = scan_ff_pattern
-};
-
-static struct nand_ecclayout akita_oobinfo = {
- .eccbytes = 24,
- .eccpos = {
- 0x5, 0x1, 0x2, 0x3, 0x6, 0x7, 0x15, 0x11,
- 0x12, 0x13, 0x16, 0x17, 0x25, 0x21, 0x22, 0x23,
- 0x26, 0x27, 0x35, 0x31, 0x32, 0x33, 0x36, 0x37},
- .oobfree = {{0x08, 0x09}}
-};
-
static int sharpsl_nand_dev_ready(struct mtd_info *mtd)
{
- return !((readb(FLASHCTL) & FLRYBY) == 0);
+ struct sharpsl_nand *sharpsl = mtd_to_sharpsl(mtd);
+ return !((readb(sharpsl->io + FLASHCTL) & FLRYBY) == 0);
}
static void sharpsl_nand_enable_hwecc(struct mtd_info *mtd, int mode)
{
- writeb(0, ECCCLRR);
+ struct sharpsl_nand *sharpsl = mtd_to_sharpsl(mtd);
+ writeb(0, sharpsl->io + ECCCLRR);
}
static int sharpsl_nand_calculate_ecc(struct mtd_info *mtd, const u_char * dat, u_char * ecc_code)
{
- ecc_code[0] = ~readb(ECCLPUB);
- ecc_code[1] = ~readb(ECCLPLB);
- ecc_code[2] = (~readb(ECCCP) << 2) | 0x03;
- return readb(ECCCNTR) != 0;
+ struct sharpsl_nand *sharpsl = mtd_to_sharpsl(mtd);
+ ecc_code[0] = ~readb(sharpsl->io + ECCLPUB);
+ ecc_code[1] = ~readb(sharpsl->io + ECCLPLB);
+ ecc_code[2] = (~readb(sharpsl->io + ECCCP) << 2) | 0x03;
+ return readb(sharpsl->io + ECCCNTR) != 0;
}
#ifdef CONFIG_MTD_PARTITIONS
-const char *part_probes[] = { "cmdlinepart", NULL };
+static const char *part_probes[] = { "cmdlinepart", NULL };
#endif
/*
* Main initialization routine
*/
-static int __init sharpsl_nand_init(void)
+static int __devinit sharpsl_nand_probe(struct platform_device *pdev)
{
struct nand_chip *this;
+#ifdef CONFIG_MTD_PARTITIONS
struct mtd_partition *sharpsl_partition_info;
+ int nr_partitions;
+#endif
+ struct resource *r;
int err = 0;
+ struct sharpsl_nand *sharpsl;
+ struct sharpsl_nand_platform_data *data = pdev->dev.platform_data;
+
+ if (!data) {
+ dev_err(&pdev->dev, "no platform data!\n");
+ return -EINVAL;
+ }
/* Allocate memory for MTD device structure and private data */
- sharpsl_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);
- if (!sharpsl_mtd) {
+ sharpsl = kzalloc(sizeof(struct sharpsl_nand), GFP_KERNEL);
+ if (!sharpsl) {
printk("Unable to allocate SharpSL NAND MTD device structure.\n");
return -ENOMEM;
}
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!r) {
+ dev_err(&pdev->dev, "no io memory resource defined!\n");
+ err = -ENODEV;
+ goto err_get_res;
+ }
+
/* map physical address */
- sharpsl_io_base = ioremap(sharpsl_phys_base, 0x1000);
- if (!sharpsl_io_base) {
+ sharpsl->io = ioremap(r->start, resource_size(r));
+ if (!sharpsl->io) {
printk("ioremap to access Sharp SL NAND chip failed\n");
- kfree(sharpsl_mtd);
- return -EIO;
+ err = -EIO;
+ goto err_ioremap;
}
/* Get pointer to private data */
- this = (struct nand_chip *)(&sharpsl_mtd[1]);
-
- /* Initialize structures */
- memset(sharpsl_mtd, 0, sizeof(struct mtd_info));
- memset(this, 0, sizeof(struct nand_chip));
+ this = (struct nand_chip *)(&sharpsl->chip);
/* Link the private data with the MTD structure */
- sharpsl_mtd->priv = this;
- sharpsl_mtd->owner = THIS_MODULE;
+ sharpsl->mtd.priv = this;
+ sharpsl->mtd.owner = THIS_MODULE;
+
+ platform_set_drvdata(pdev, sharpsl);
/*
* PXA initialize
*/
- writeb(readb(FLASHCTL) | FLWP, FLASHCTL);
+ writeb(readb(sharpsl->io + FLASHCTL) | FLWP, sharpsl->io + FLASHCTL);
/* Set address of NAND IO lines */
- this->IO_ADDR_R = FLASHIO;
- this->IO_ADDR_W = FLASHIO;
+ this->IO_ADDR_R = sharpsl->io + FLASHIO;
+ this->IO_ADDR_W = sharpsl->io + FLASHIO;
/* Set address of hardware control function */
this->cmd_ctrl = sharpsl_nand_hwcontrol;
this->dev_ready = sharpsl_nand_dev_ready;
this->ecc.mode = NAND_ECC_HW;
this->ecc.size = 256;
this->ecc.bytes = 3;
- this->badblock_pattern = &sharpsl_bbt;
- if (machine_is_akita() || machine_is_borzoi()) {
- this->badblock_pattern = &sharpsl_akita_bbt;
- this->ecc.layout = &akita_oobinfo;
- }
+ this->badblock_pattern = data->badblock_pattern;
+ this->ecc.layout = data->ecc_layout;
this->ecc.hwctl = sharpsl_nand_enable_hwecc;
this->ecc.calculate = sharpsl_nand_calculate_ecc;
this->ecc.correct = nand_correct_data;
/* Scan to find existence of the device */
- err = nand_scan(sharpsl_mtd, 1);
- if (err) {
- iounmap(sharpsl_io_base);
- kfree(sharpsl_mtd);
- return err;
- }
+ err = nand_scan(&sharpsl->mtd, 1);
+ if (err)
+ goto err_scan;
/* Register the partitions */
- sharpsl_mtd->name = "sharpsl-nand";
- nr_partitions = parse_mtd_partitions(sharpsl_mtd, part_probes, &sharpsl_partition_info, 0);
-
+ sharpsl->mtd.name = "sharpsl-nand";
+#ifdef CONFIG_MTD_PARTITIONS
+ nr_partitions = parse_mtd_partitions(&sharpsl->mtd, part_probes, &sharpsl_partition_info, 0);
if (nr_partitions <= 0) {
- nr_partitions = DEFAULT_NUM_PARTITIONS;
- sharpsl_partition_info = sharpsl_nand_default_partition_info;
- if (machine_is_poodle()) {
- sharpsl_partition_info[1].size = 22 * 1024 * 1024;
- } else if (machine_is_corgi() || machine_is_shepherd()) {
- sharpsl_partition_info[1].size = 25 * 1024 * 1024;
- } else if (machine_is_husky()) {
- sharpsl_partition_info[1].size = 53 * 1024 * 1024;
- } else if (machine_is_spitz()) {
- sharpsl_partition_info[1].size = 5 * 1024 * 1024;
- } else if (machine_is_akita()) {
- sharpsl_partition_info[1].size = 58 * 1024 * 1024;
- } else if (machine_is_borzoi()) {
- sharpsl_partition_info[1].size = 32 * 1024 * 1024;
- }
+ nr_partitions = data->nr_partitions;
+ sharpsl_partition_info = data->partitions;
}
- add_mtd_partitions(sharpsl_mtd, sharpsl_partition_info, nr_partitions);
+ if (nr_partitions > 0)
+ err = add_mtd_partitions(&sharpsl->mtd, sharpsl_partition_info, nr_partitions);
+ else
+#endif
+ err = add_mtd_device(&sharpsl->mtd);
+ if (err)
+ goto err_add;
/* Return happy */
return 0;
-}
-module_init(sharpsl_nand_init);
+err_add:
+ nand_release(&sharpsl->mtd);
+
+err_scan:
+ platform_set_drvdata(pdev, NULL);
+ iounmap(sharpsl->io);
+err_ioremap:
+err_get_res:
+ kfree(sharpsl);
+ return err;
+}
/*
* Clean up routine
*/
-static void __exit sharpsl_nand_cleanup(void)
+static int __devexit sharpsl_nand_remove(struct platform_device *pdev)
{
+ struct sharpsl_nand *sharpsl = platform_get_drvdata(pdev);
+
/* Release resources, unregister device */
- nand_release(sharpsl_mtd);
+ nand_release(&sharpsl->mtd);
- iounmap(sharpsl_io_base);
+ platform_set_drvdata(pdev, NULL);
+
+ iounmap(sharpsl->io);
/* Free the MTD device structure */
- kfree(sharpsl_mtd);
+ kfree(sharpsl);
+
+ return 0;
+}
+
+static struct platform_driver sharpsl_nand_driver = {
+ .driver = {
+ .name = "sharpsl-nand",
+ .owner = THIS_MODULE,
+ },
+ .probe = sharpsl_nand_probe,
+ .remove = __devexit_p(sharpsl_nand_remove),
+};
+
+static int __init sharpsl_nand_init(void)
+{
+ return platform_driver_register(&sharpsl_nand_driver);
}
+module_init(sharpsl_nand_init);
-module_exit(sharpsl_nand_cleanup);
+static void __exit sharpsl_nand_exit(void)
+{
+ platform_driver_unregister(&sharpsl_nand_driver);
+}
+module_exit(sharpsl_nand_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
struct NFTLrecord *nftl;
unsigned long temp;
- if (mtd->type != MTD_NANDFLASH)
+ if (mtd->type != MTD_NANDFLASH || mtd->size > UINT_MAX)
return;
/* OK, this is moderately ugly. But probably safe. Alternatives? */
if (memcmp(mtd->name, "DiskOnChip", 10))
the mtd device accordingly. We could even get rid of
nftl->EraseSize if there were any point in doing so. */
nftl->EraseSize = nftl->mbd.mtd->erasesize;
- nftl->nb_blocks = nftl->mbd.mtd->size / nftl->EraseSize;
+ nftl->nb_blocks = (u32)nftl->mbd.mtd->size / nftl->EraseSize;
nftl->MediaUnit = BLOCK_NIL;
nftl->SpareMediaUnit = BLOCK_NIL;
printk(KERN_NOTICE "WARNING: Support for NFTL with UnitSizeFactor 0x%02x is experimental\n",
mh->UnitSizeFactor);
nftl->EraseSize = nftl->mbd.mtd->erasesize << (0xff - mh->UnitSizeFactor);
- nftl->nb_blocks = nftl->mbd.mtd->size / nftl->EraseSize;
+ nftl->nb_blocks = (u32)nftl->mbd.mtd->size / nftl->EraseSize;
}
#endif
nftl->nb_boot_blocks = le16_to_cpu(mh->FirstPhysicalEUN);
int len;
int ret = 0;
- DEBUG(MTD_DEBUG_LEVEL3, "onenand_erase: start = 0x%08x, len = %i\n", (unsigned int) instr->addr, (unsigned int) instr->len);
+ DEBUG(MTD_DEBUG_LEVEL3, "onenand_erase: start = 0x%012llx, len = %llu\n", (unsigned long long) instr->addr, (unsigned long long) instr->len);
block_size = (1 << this->erase_shift);
/* Check if we have a bad block, we do not erase bad blocks */
if (onenand_block_isbad_nolock(mtd, addr, 0)) {
- printk (KERN_WARNING "onenand_erase: attempt to erase a bad block at addr 0x%08x\n", (unsigned int) addr);
+ printk (KERN_WARNING "onenand_erase: attempt to erase a bad block at addr 0x%012llx\n", (unsigned long long) addr);
instr->state = MTD_ERASE_FAILED;
goto erase_exit;
}
*
* Lock one or more blocks
*/
-static int onenand_lock(struct mtd_info *mtd, loff_t ofs, size_t len)
+static int onenand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
int ret;
*
* Unlock one or more blocks
*/
-static int onenand_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
+static int onenand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
int ret;
#include <asm/types.h>
-#define const_cpu_to_le16 __constant_cpu_to_le16
-
static int block_size = 0;
module_param(block_size, int, 0);
MODULE_PARM_DESC(block_size, "Block size to use by RFD, defaults to erase unit size");
size_t retlen;
sectors_per_block = part->block_size / SECTOR_SIZE;
- part->total_blocks = part->mbd.mtd->size / part->block_size;
+ part->total_blocks = (u32)part->mbd.mtd->size / part->block_size;
if (part->total_blocks < 2)
return -ENOENT;
part = (struct partition*)erase->priv;
- i = erase->addr / part->block_size;
- if (i >= part->total_blocks || part->blocks[i].offset != erase->addr) {
- printk(KERN_ERR PREFIX "erase callback for unknown offset %x "
- "on '%s'\n", erase->addr, part->mbd.mtd->name);
+ i = (u32)erase->addr / part->block_size;
+ if (i >= part->total_blocks || part->blocks[i].offset != erase->addr ||
+ erase->addr > UINT_MAX) {
+ printk(KERN_ERR PREFIX "erase callback for unknown offset %llx "
+ "on '%s'\n", (unsigned long long)erase->addr, part->mbd.mtd->name);
return;
}
if (erase->state != MTD_ERASE_DONE) {
- printk(KERN_WARNING PREFIX "erase failed at 0x%x on '%s', "
- "state %d\n", erase->addr,
+ printk(KERN_WARNING PREFIX "erase failed at 0x%llx on '%s', "
+ "state %d\n", (unsigned long long)erase->addr,
part->mbd.mtd->name, erase->state);
part->blocks[i].state = BLOCK_FAILED;
return;
}
- magic = const_cpu_to_le16(RFD_MAGIC);
+ magic = cpu_to_le16(RFD_MAGIC);
part->blocks[i].state = BLOCK_ERASED;
part->blocks[i].free_sectors = part->data_sectors_per_block;
rc = part->mbd.mtd->erase(part->mbd.mtd, erase);
if (rc) {
- printk(KERN_ERR PREFIX "erase of region %x,%x on '%s' "
- "failed\n", erase->addr, erase->len,
- part->mbd.mtd->name);
+ printk(KERN_ERR PREFIX "erase of region %llx,%llx on '%s' "
+ "failed\n", (unsigned long long)erase->addr,
+ (unsigned long long)erase->len, part->mbd.mtd->name);
kfree(erase);
}
int block, offset, rc;
u_long addr;
size_t retlen;
- u16 del = const_cpu_to_le16(SECTOR_DELETED);
+ u16 del = cpu_to_le16(SECTOR_DELETED);
block = old_addr / part->block_size;
offset = (old_addr % part->block_size) / SECTOR_SIZE -
{
struct partition *part;
- if (mtd->type != MTD_NORFLASH)
+ if (mtd->type != MTD_NORFLASH || mtd->size > UINT_MAX)
return;
part = kzalloc(sizeof(struct partition), GFP_KERNEL);
int cis_sector;
/* Check for small page NAND flash */
- if (mtd->type != MTD_NANDFLASH || mtd->oobsize != OOB_SIZE)
+ if (mtd->type != MTD_NANDFLASH || mtd->oobsize != OOB_SIZE ||
+ mtd->size > UINT_MAX)
return;
/* Check for SSDFC format by reading CIS/IDI sector */
ssfdc->cis_block = cis_sector / (mtd->erasesize >> SECTOR_SHIFT);
ssfdc->erase_size = mtd->erasesize;
- ssfdc->map_len = mtd->size / mtd->erasesize;
+ ssfdc->map_len = (u32)mtd->size / mtd->erasesize;
DEBUG(MTD_DEBUG_LEVEL1,
"SSFDC_RO: cis_block=%d,erase_size=%d,map_len=%d,n_zones=%d\n",
ssfdc->heads = 16;
ssfdc->sectors = 32;
get_chs(mtd->size, NULL, &ssfdc->heads, &ssfdc->sectors);
- ssfdc->cylinders = (unsigned short)((mtd->size >> SECTOR_SHIFT) /
+ ssfdc->cylinders = (unsigned short)(((u32)mtd->size >> SECTOR_SHIFT) /
((long)ssfdc->sectors * (long)ssfdc->heads));
DEBUG(MTD_DEBUG_LEVEL1, "SSFDC_RO: using C:%d H:%d S:%d == %ld sects\n",
--- /dev/null
+obj-$(CONFIG_MTD_TESTS) += mtd_oobtest.o
+obj-$(CONFIG_MTD_TESTS) += mtd_pagetest.o
+obj-$(CONFIG_MTD_TESTS) += mtd_readtest.o
+obj-$(CONFIG_MTD_TESTS) += mtd_speedtest.o
+obj-$(CONFIG_MTD_TESTS) += mtd_stresstest.o
+obj-$(CONFIG_MTD_TESTS) += mtd_subpagetest.o
+obj-$(CONFIG_MTD_TESTS) += mtd_torturetest.o
--- /dev/null
+/*
+ * Copyright (C) 2006-2008 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; see the file COPYING. If not, write to the Free Software
+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Test OOB read and write on MTD device.
+ *
+ * Author: Adrian Hunter <ext-adrian.hunter@nokia.com>
+ */
+
+#include <asm/div64.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/err.h>
+#include <linux/mtd/mtd.h>
+#include <linux/sched.h>
+
+#define PRINT_PREF KERN_INFO "mtd_oobtest: "
+
+static int dev;
+module_param(dev, int, S_IRUGO);
+MODULE_PARM_DESC(dev, "MTD device number to use");
+
+static struct mtd_info *mtd;
+static unsigned char *readbuf;
+static unsigned char *writebuf;
+static unsigned char *bbt;
+
+static int ebcnt;
+static int pgcnt;
+static int errcnt;
+static int use_offset;
+static int use_len;
+static int use_len_max;
+static int vary_offset;
+static unsigned long next = 1;
+
+static inline unsigned int simple_rand(void)
+{
+ next = next * 1103515245 + 12345;
+ return (unsigned int)((next / 65536) % 32768);
+}
+
+static inline void simple_srand(unsigned long seed)
+{
+ next = seed;
+}
+
+static void set_random_data(unsigned char *buf, size_t len)
+{
+ size_t i;
+
+ for (i = 0; i < len; ++i)
+ buf[i] = simple_rand();
+}
+
+static int erase_eraseblock(int ebnum)
+{
+ int err;
+ struct erase_info ei;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ memset(&ei, 0, sizeof(struct erase_info));
+ ei.mtd = mtd;
+ ei.addr = addr;
+ ei.len = mtd->erasesize;
+
+ err = mtd->erase(mtd, &ei);
+ if (err) {
+ printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum);
+ return err;
+ }
+
+ if (ei.state == MTD_ERASE_FAILED) {
+ printk(PRINT_PREF "some erase error occurred at EB %d\n",
+ ebnum);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int erase_whole_device(void)
+{
+ int err;
+ unsigned int i;
+
+ printk(PRINT_PREF "erasing whole device\n");
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = erase_eraseblock(i);
+ if (err)
+ return err;
+ cond_resched();
+ }
+ printk(PRINT_PREF "erased %u eraseblocks\n", i);
+ return 0;
+}
+
+static void do_vary_offset(void)
+{
+ use_len -= 1;
+ if (use_len < 1) {
+ use_offset += 1;
+ if (use_offset >= use_len_max)
+ use_offset = 0;
+ use_len = use_len_max - use_offset;
+ }
+}
+
+static int write_eraseblock(int ebnum)
+{
+ int i;
+ struct mtd_oob_ops ops;
+ int err = 0;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ for (i = 0; i < pgcnt; ++i, addr += mtd->writesize) {
+ set_random_data(writebuf, use_len);
+ ops.mode = MTD_OOB_AUTO;
+ ops.len = 0;
+ ops.retlen = 0;
+ ops.ooblen = use_len;
+ ops.oobretlen = 0;
+ ops.ooboffs = use_offset;
+ ops.datbuf = 0;
+ ops.oobbuf = writebuf;
+ err = mtd->write_oob(mtd, addr, &ops);
+ if (err || ops.oobretlen != use_len) {
+ printk(PRINT_PREF "error: writeoob failed at %#llx\n",
+ (long long)addr);
+ printk(PRINT_PREF "error: use_len %d, use_offset %d\n",
+ use_len, use_offset);
+ errcnt += 1;
+ return err ? err : -1;
+ }
+ if (vary_offset)
+ do_vary_offset();
+ }
+
+ return err;
+}
+
+static int write_whole_device(void)
+{
+ int err;
+ unsigned int i;
+
+ printk(PRINT_PREF "writing OOBs of whole device\n");
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = write_eraseblock(i);
+ if (err)
+ return err;
+ if (i % 256 == 0)
+ printk(PRINT_PREF "written up to eraseblock %u\n", i);
+ cond_resched();
+ }
+ printk(PRINT_PREF "written %u eraseblocks\n", i);
+ return 0;
+}
+
+static int verify_eraseblock(int ebnum)
+{
+ int i;
+ struct mtd_oob_ops ops;
+ int err = 0;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ for (i = 0; i < pgcnt; ++i, addr += mtd->writesize) {
+ set_random_data(writebuf, use_len);
+ ops.mode = MTD_OOB_AUTO;
+ ops.len = 0;
+ ops.retlen = 0;
+ ops.ooblen = use_len;
+ ops.oobretlen = 0;
+ ops.ooboffs = use_offset;
+ ops.datbuf = 0;
+ ops.oobbuf = readbuf;
+ err = mtd->read_oob(mtd, addr, &ops);
+ if (err || ops.oobretlen != use_len) {
+ printk(PRINT_PREF "error: readoob failed at %#llx\n",
+ (long long)addr);
+ errcnt += 1;
+ return err ? err : -1;
+ }
+ if (memcmp(readbuf, writebuf, use_len)) {
+ printk(PRINT_PREF "error: verify failed at %#llx\n",
+ (long long)addr);
+ errcnt += 1;
+ if (errcnt > 1000) {
+ printk(PRINT_PREF "error: too many errors\n");
+ return -1;
+ }
+ }
+ if (use_offset != 0 || use_len < mtd->ecclayout->oobavail) {
+ int k;
+
+ ops.mode = MTD_OOB_AUTO;
+ ops.len = 0;
+ ops.retlen = 0;
+ ops.ooblen = mtd->ecclayout->oobavail;
+ ops.oobretlen = 0;
+ ops.ooboffs = 0;
+ ops.datbuf = 0;
+ ops.oobbuf = readbuf;
+ err = mtd->read_oob(mtd, addr, &ops);
+ if (err || ops.oobretlen != mtd->ecclayout->oobavail) {
+ printk(PRINT_PREF "error: readoob failed at "
+ "%#llx\n", (long long)addr);
+ errcnt += 1;
+ return err ? err : -1;
+ }
+ if (memcmp(readbuf + use_offset, writebuf, use_len)) {
+ printk(PRINT_PREF "error: verify failed at "
+ "%#llx\n", (long long)addr);
+ errcnt += 1;
+ if (errcnt > 1000) {
+ printk(PRINT_PREF "error: too many "
+ "errors\n");
+ return -1;
+ }
+ }
+ for (k = 0; k < use_offset; ++k)
+ if (readbuf[k] != 0xff) {
+ printk(PRINT_PREF "error: verify 0xff "
+ "failed at %#llx\n",
+ (long long)addr);
+ errcnt += 1;
+ if (errcnt > 1000) {
+ printk(PRINT_PREF "error: too "
+ "many errors\n");
+ return -1;
+ }
+ }
+ for (k = use_offset + use_len;
+ k < mtd->ecclayout->oobavail; ++k)
+ if (readbuf[k] != 0xff) {
+ printk(PRINT_PREF "error: verify 0xff "
+ "failed at %#llx\n",
+ (long long)addr);
+ errcnt += 1;
+ if (errcnt > 1000) {
+ printk(PRINT_PREF "error: too "
+ "many errors\n");
+ return -1;
+ }
+ }
+ }
+ if (vary_offset)
+ do_vary_offset();
+ }
+ return err;
+}
+
+static int verify_eraseblock_in_one_go(int ebnum)
+{
+ struct mtd_oob_ops ops;
+ int err = 0;
+ loff_t addr = ebnum * mtd->erasesize;
+ size_t len = mtd->ecclayout->oobavail * pgcnt;
+
+ set_random_data(writebuf, len);
+ ops.mode = MTD_OOB_AUTO;
+ ops.len = 0;
+ ops.retlen = 0;
+ ops.ooblen = len;
+ ops.oobretlen = 0;
+ ops.ooboffs = 0;
+ ops.datbuf = 0;
+ ops.oobbuf = readbuf;
+ err = mtd->read_oob(mtd, addr, &ops);
+ if (err || ops.oobretlen != len) {
+ printk(PRINT_PREF "error: readoob failed at %#llx\n",
+ (long long)addr);
+ errcnt += 1;
+ return err ? err : -1;
+ }
+ if (memcmp(readbuf, writebuf, len)) {
+ printk(PRINT_PREF "error: verify failed at %#llx\n",
+ (long long)addr);
+ errcnt += 1;
+ if (errcnt > 1000) {
+ printk(PRINT_PREF "error: too many errors\n");
+ return -1;
+ }
+ }
+
+ return err;
+}
+
+static int verify_all_eraseblocks(void)
+{
+ int err;
+ unsigned int i;
+
+ printk(PRINT_PREF "verifying all eraseblocks\n");
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = verify_eraseblock(i);
+ if (err)
+ return err;
+ if (i % 256 == 0)
+ printk(PRINT_PREF "verified up to eraseblock %u\n", i);
+ cond_resched();
+ }
+ printk(PRINT_PREF "verified %u eraseblocks\n", i);
+ return 0;
+}
+
+static int is_block_bad(int ebnum)
+{
+ int ret;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ ret = mtd->block_isbad(mtd, addr);
+ if (ret)
+ printk(PRINT_PREF "block %d is bad\n", ebnum);
+ return ret;
+}
+
+static int scan_for_bad_eraseblocks(void)
+{
+ int i, bad = 0;
+
+ bbt = kmalloc(ebcnt, GFP_KERNEL);
+ if (!bbt) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ return -ENOMEM;
+ }
+ memset(bbt, 0 , ebcnt);
+
+ printk(PRINT_PREF "scanning for bad eraseblocks\n");
+ for (i = 0; i < ebcnt; ++i) {
+ bbt[i] = is_block_bad(i) ? 1 : 0;
+ if (bbt[i])
+ bad += 1;
+ cond_resched();
+ }
+ printk(PRINT_PREF "scanned %d eraseblocks, %d are bad\n", i, bad);
+ return 0;
+}
+
+static int __init mtd_oobtest_init(void)
+{
+ int err = 0;
+ unsigned int i;
+ uint64_t tmp;
+ struct mtd_oob_ops ops;
+ loff_t addr = 0, addr0;
+
+ printk(KERN_INFO "\n");
+ printk(KERN_INFO "=================================================\n");
+ printk(PRINT_PREF "MTD device: %d\n", dev);
+
+ mtd = get_mtd_device(NULL, dev);
+ if (IS_ERR(mtd)) {
+ err = PTR_ERR(mtd);
+ printk(PRINT_PREF "error: cannot get MTD device\n");
+ return err;
+ }
+
+ if (mtd->type != MTD_NANDFLASH) {
+ printk(PRINT_PREF "this test requires NAND flash\n");
+ goto out;
+ }
+
+ tmp = mtd->size;
+ do_div(tmp, mtd->erasesize);
+ ebcnt = tmp;
+ pgcnt = mtd->erasesize / mtd->writesize;
+
+ printk(PRINT_PREF "MTD device size %llu, eraseblock size %u, "
+ "page size %u, count of eraseblocks %u, pages per "
+ "eraseblock %u, OOB size %u\n",
+ (unsigned long long)mtd->size, mtd->erasesize,
+ mtd->writesize, ebcnt, pgcnt, mtd->oobsize);
+
+ err = -ENOMEM;
+ mtd->erasesize = mtd->erasesize;
+ readbuf = kmalloc(mtd->erasesize, GFP_KERNEL);
+ if (!readbuf) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ goto out;
+ }
+ writebuf = kmalloc(mtd->erasesize, GFP_KERNEL);
+ if (!writebuf) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ goto out;
+ }
+
+ err = scan_for_bad_eraseblocks();
+ if (err)
+ goto out;
+
+ use_offset = 0;
+ use_len = mtd->ecclayout->oobavail;
+ use_len_max = mtd->ecclayout->oobavail;
+ vary_offset = 0;
+
+ /* First test: write all OOB, read it back and verify */
+ printk(PRINT_PREF "test 1 of 5\n");
+
+ err = erase_whole_device();
+ if (err)
+ goto out;
+
+ simple_srand(1);
+ err = write_whole_device();
+ if (err)
+ goto out;
+
+ simple_srand(1);
+ err = verify_all_eraseblocks();
+ if (err)
+ goto out;
+
+ /*
+ * Second test: write all OOB, a block at a time, read it back and
+ * verify.
+ */
+ printk(PRINT_PREF "test 2 of 5\n");
+
+ err = erase_whole_device();
+ if (err)
+ goto out;
+
+ simple_srand(3);
+ err = write_whole_device();
+ if (err)
+ goto out;
+
+ /* Check all eraseblocks */
+ simple_srand(3);
+ printk(PRINT_PREF "verifying all eraseblocks\n");
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = verify_eraseblock_in_one_go(i);
+ if (err)
+ goto out;
+ if (i % 256 == 0)
+ printk(PRINT_PREF "verified up to eraseblock %u\n", i);
+ cond_resched();
+ }
+ printk(PRINT_PREF "verified %u eraseblocks\n", i);
+
+ /*
+ * Third test: write OOB at varying offsets and lengths, read it back
+ * and verify.
+ */
+ printk(PRINT_PREF "test 3 of 5\n");
+
+ err = erase_whole_device();
+ if (err)
+ goto out;
+
+ /* Write all eraseblocks */
+ use_offset = 0;
+ use_len = mtd->ecclayout->oobavail;
+ use_len_max = mtd->ecclayout->oobavail;
+ vary_offset = 1;
+ simple_srand(5);
+ printk(PRINT_PREF "writing OOBs of whole device\n");
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = write_eraseblock(i);
+ if (err)
+ goto out;
+ if (i % 256 == 0)
+ printk(PRINT_PREF "written up to eraseblock %u\n", i);
+ cond_resched();
+ }
+ printk(PRINT_PREF "written %u eraseblocks\n", i);
+
+ /* Check all eraseblocks */
+ use_offset = 0;
+ use_len = mtd->ecclayout->oobavail;
+ use_len_max = mtd->ecclayout->oobavail;
+ vary_offset = 1;
+ simple_srand(5);
+ err = verify_all_eraseblocks();
+ if (err)
+ goto out;
+
+ use_offset = 0;
+ use_len = mtd->ecclayout->oobavail;
+ use_len_max = mtd->ecclayout->oobavail;
+ vary_offset = 0;
+
+ /* Fourth test: try to write off end of device */
+ printk(PRINT_PREF "test 4 of 5\n");
+
+ err = erase_whole_device();
+ if (err)
+ goto out;
+
+ addr0 = 0;
+ for (i = 0; bbt[i] && i < ebcnt; ++i)
+ addr0 += mtd->erasesize;
+
+ /* Attempt to write off end of OOB */
+ ops.mode = MTD_OOB_AUTO;
+ ops.len = 0;
+ ops.retlen = 0;
+ ops.ooblen = 1;
+ ops.oobretlen = 0;
+ ops.ooboffs = mtd->ecclayout->oobavail;
+ ops.datbuf = 0;
+ ops.oobbuf = writebuf;
+ printk(PRINT_PREF "attempting to start write past end of OOB\n");
+ printk(PRINT_PREF "an error is expected...\n");
+ err = mtd->write_oob(mtd, addr0, &ops);
+ if (err) {
+ printk(PRINT_PREF "error occurred as expected\n");
+ err = 0;
+ } else {
+ printk(PRINT_PREF "error: can write past end of OOB\n");
+ errcnt += 1;
+ }
+
+ /* Attempt to read off end of OOB */
+ ops.mode = MTD_OOB_AUTO;
+ ops.len = 0;
+ ops.retlen = 0;
+ ops.ooblen = 1;
+ ops.oobretlen = 0;
+ ops.ooboffs = mtd->ecclayout->oobavail;
+ ops.datbuf = 0;
+ ops.oobbuf = readbuf;
+ printk(PRINT_PREF "attempting to start read past end of OOB\n");
+ printk(PRINT_PREF "an error is expected...\n");
+ err = mtd->read_oob(mtd, addr0, &ops);
+ if (err) {
+ printk(PRINT_PREF "error occurred as expected\n");
+ err = 0;
+ } else {
+ printk(PRINT_PREF "error: can read past end of OOB\n");
+ errcnt += 1;
+ }
+
+ if (bbt[ebcnt - 1])
+ printk(PRINT_PREF "skipping end of device tests because last "
+ "block is bad\n");
+ else {
+ /* Attempt to write off end of device */
+ ops.mode = MTD_OOB_AUTO;
+ ops.len = 0;
+ ops.retlen = 0;
+ ops.ooblen = mtd->ecclayout->oobavail + 1;
+ ops.oobretlen = 0;
+ ops.ooboffs = 0;
+ ops.datbuf = 0;
+ ops.oobbuf = writebuf;
+ printk(PRINT_PREF "attempting to write past end of device\n");
+ printk(PRINT_PREF "an error is expected...\n");
+ err = mtd->write_oob(mtd, mtd->size - mtd->writesize, &ops);
+ if (err) {
+ printk(PRINT_PREF "error occurred as expected\n");
+ err = 0;
+ } else {
+ printk(PRINT_PREF "error: wrote past end of device\n");
+ errcnt += 1;
+ }
+
+ /* Attempt to read off end of device */
+ ops.mode = MTD_OOB_AUTO;
+ ops.len = 0;
+ ops.retlen = 0;
+ ops.ooblen = mtd->ecclayout->oobavail + 1;
+ ops.oobretlen = 0;
+ ops.ooboffs = 0;
+ ops.datbuf = 0;
+ ops.oobbuf = readbuf;
+ printk(PRINT_PREF "attempting to read past end of device\n");
+ printk(PRINT_PREF "an error is expected...\n");
+ err = mtd->read_oob(mtd, mtd->size - mtd->writesize, &ops);
+ if (err) {
+ printk(PRINT_PREF "error occurred as expected\n");
+ err = 0;
+ } else {
+ printk(PRINT_PREF "error: read past end of device\n");
+ errcnt += 1;
+ }
+
+ err = erase_eraseblock(ebcnt - 1);
+ if (err)
+ goto out;
+
+ /* Attempt to write off end of device */
+ ops.mode = MTD_OOB_AUTO;
+ ops.len = 0;
+ ops.retlen = 0;
+ ops.ooblen = mtd->ecclayout->oobavail;
+ ops.oobretlen = 0;
+ ops.ooboffs = 1;
+ ops.datbuf = 0;
+ ops.oobbuf = writebuf;
+ printk(PRINT_PREF "attempting to write past end of device\n");
+ printk(PRINT_PREF "an error is expected...\n");
+ err = mtd->write_oob(mtd, mtd->size - mtd->writesize, &ops);
+ if (err) {
+ printk(PRINT_PREF "error occurred as expected\n");
+ err = 0;
+ } else {
+ printk(PRINT_PREF "error: wrote past end of device\n");
+ errcnt += 1;
+ }
+
+ /* Attempt to read off end of device */
+ ops.mode = MTD_OOB_AUTO;
+ ops.len = 0;
+ ops.retlen = 0;
+ ops.ooblen = mtd->ecclayout->oobavail;
+ ops.oobretlen = 0;
+ ops.ooboffs = 1;
+ ops.datbuf = 0;
+ ops.oobbuf = readbuf;
+ printk(PRINT_PREF "attempting to read past end of device\n");
+ printk(PRINT_PREF "an error is expected...\n");
+ err = mtd->read_oob(mtd, mtd->size - mtd->writesize, &ops);
+ if (err) {
+ printk(PRINT_PREF "error occurred as expected\n");
+ err = 0;
+ } else {
+ printk(PRINT_PREF "error: read past end of device\n");
+ errcnt += 1;
+ }
+ }
+
+ /* Fifth test: write / read across block boundaries */
+ printk(PRINT_PREF "test 5 of 5\n");
+
+ /* Erase all eraseblocks */
+ err = erase_whole_device();
+ if (err)
+ goto out;
+
+ /* Write all eraseblocks */
+ simple_srand(11);
+ printk(PRINT_PREF "writing OOBs of whole device\n");
+ for (i = 0; i < ebcnt - 1; ++i) {
+ int cnt = 2;
+ int pg;
+ size_t sz = mtd->ecclayout->oobavail;
+ if (bbt[i] || bbt[i + 1])
+ continue;
+ addr = (i + 1) * mtd->erasesize - mtd->writesize;
+ for (pg = 0; pg < cnt; ++pg) {
+ set_random_data(writebuf, sz);
+ ops.mode = MTD_OOB_AUTO;
+ ops.len = 0;
+ ops.retlen = 0;
+ ops.ooblen = sz;
+ ops.oobretlen = 0;
+ ops.ooboffs = 0;
+ ops.datbuf = 0;
+ ops.oobbuf = writebuf;
+ err = mtd->write_oob(mtd, addr, &ops);
+ if (err)
+ goto out;
+ if (i % 256 == 0)
+ printk(PRINT_PREF "written up to eraseblock "
+ "%u\n", i);
+ cond_resched();
+ addr += mtd->writesize;
+ }
+ }
+ printk(PRINT_PREF "written %u eraseblocks\n", i);
+
+ /* Check all eraseblocks */
+ simple_srand(11);
+ printk(PRINT_PREF "verifying all eraseblocks\n");
+ for (i = 0; i < ebcnt - 1; ++i) {
+ if (bbt[i] || bbt[i + 1])
+ continue;
+ set_random_data(writebuf, mtd->ecclayout->oobavail * 2);
+ addr = (i + 1) * mtd->erasesize - mtd->writesize;
+ ops.mode = MTD_OOB_AUTO;
+ ops.len = 0;
+ ops.retlen = 0;
+ ops.ooblen = mtd->ecclayout->oobavail * 2;
+ ops.oobretlen = 0;
+ ops.ooboffs = 0;
+ ops.datbuf = 0;
+ ops.oobbuf = readbuf;
+ err = mtd->read_oob(mtd, addr, &ops);
+ if (err)
+ goto out;
+ if (memcmp(readbuf, writebuf, mtd->ecclayout->oobavail * 2)) {
+ printk(PRINT_PREF "error: verify failed at %#llx\n",
+ (long long)addr);
+ errcnt += 1;
+ if (errcnt > 1000) {
+ printk(PRINT_PREF "error: too many errors\n");
+ goto out;
+ }
+ }
+ if (i % 256 == 0)
+ printk(PRINT_PREF "verified up to eraseblock %u\n", i);
+ cond_resched();
+ }
+ printk(PRINT_PREF "verified %u eraseblocks\n", i);
+
+ printk(PRINT_PREF "finished with %d errors\n", errcnt);
+out:
+ kfree(bbt);
+ kfree(writebuf);
+ kfree(readbuf);
+ put_mtd_device(mtd);
+ if (err)
+ printk(PRINT_PREF "error %d occurred\n", err);
+ printk(KERN_INFO "=================================================\n");
+ return err;
+}
+module_init(mtd_oobtest_init);
+
+static void __exit mtd_oobtest_exit(void)
+{
+ return;
+}
+module_exit(mtd_oobtest_exit);
+
+MODULE_DESCRIPTION("Out-of-band test module");
+MODULE_AUTHOR("Adrian Hunter");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Copyright (C) 2006-2008 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; see the file COPYING. If not, write to the Free Software
+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Test page read and write on MTD device.
+ *
+ * Author: Adrian Hunter <ext-adrian.hunter@nokia.com>
+ */
+
+#include <asm/div64.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/err.h>
+#include <linux/mtd/mtd.h>
+#include <linux/sched.h>
+
+#define PRINT_PREF KERN_INFO "mtd_pagetest: "
+
+static int dev;
+module_param(dev, int, S_IRUGO);
+MODULE_PARM_DESC(dev, "MTD device number to use");
+
+static struct mtd_info *mtd;
+static unsigned char *twopages;
+static unsigned char *writebuf;
+static unsigned char *boundary;
+static unsigned char *bbt;
+
+static int pgsize;
+static int bufsize;
+static int ebcnt;
+static int pgcnt;
+static int errcnt;
+static unsigned long next = 1;
+
+static inline unsigned int simple_rand(void)
+{
+ next = next * 1103515245 + 12345;
+ return (unsigned int)((next / 65536) % 32768);
+}
+
+static inline void simple_srand(unsigned long seed)
+{
+ next = seed;
+}
+
+static void set_random_data(unsigned char *buf, size_t len)
+{
+ size_t i;
+
+ for (i = 0; i < len; ++i)
+ buf[i] = simple_rand();
+}
+
+static int erase_eraseblock(int ebnum)
+{
+ int err;
+ struct erase_info ei;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ memset(&ei, 0, sizeof(struct erase_info));
+ ei.mtd = mtd;
+ ei.addr = addr;
+ ei.len = mtd->erasesize;
+
+ err = mtd->erase(mtd, &ei);
+ if (err) {
+ printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum);
+ return err;
+ }
+
+ if (ei.state == MTD_ERASE_FAILED) {
+ printk(PRINT_PREF "some erase error occurred at EB %d\n",
+ ebnum);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int write_eraseblock(int ebnum)
+{
+ int err = 0;
+ size_t written = 0;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ set_random_data(writebuf, mtd->erasesize);
+ cond_resched();
+ err = mtd->write(mtd, addr, mtd->erasesize, &written, writebuf);
+ if (err || written != mtd->erasesize)
+ printk(PRINT_PREF "error: write failed at %#llx\n",
+ (long long)addr);
+
+ return err;
+}
+
+static int verify_eraseblock(int ebnum)
+{
+ uint32_t j;
+ size_t read = 0;
+ int err = 0, i;
+ loff_t addr0, addrn;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ addr0 = 0;
+ for (i = 0; bbt[i] && i < ebcnt; ++i)
+ addr0 += mtd->erasesize;
+
+ addrn = mtd->size;
+ for (i = 0; bbt[ebcnt - i - 1] && i < ebcnt; ++i)
+ addrn -= mtd->erasesize;
+
+ set_random_data(writebuf, mtd->erasesize);
+ for (j = 0; j < pgcnt - 1; ++j, addr += pgsize) {
+ /* Do a read to set the internal dataRAMs to different data */
+ err = mtd->read(mtd, addr0, bufsize, &read, twopages);
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != bufsize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ (long long)addr0);
+ return err;
+ }
+ err = mtd->read(mtd, addrn - bufsize, bufsize, &read, twopages);
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != bufsize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ (long long)(addrn - bufsize));
+ return err;
+ }
+ memset(twopages, 0, bufsize);
+ read = 0;
+ err = mtd->read(mtd, addr, bufsize, &read, twopages);
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != bufsize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ (long long)addr);
+ break;
+ }
+ if (memcmp(twopages, writebuf + (j * pgsize), bufsize)) {
+ printk(PRINT_PREF "error: verify failed at %#llx\n",
+ (long long)addr);
+ errcnt += 1;
+ }
+ }
+ /* Check boundary between eraseblocks */
+ if (addr <= addrn - pgsize - pgsize && !bbt[ebnum + 1]) {
+ unsigned long oldnext = next;
+ /* Do a read to set the internal dataRAMs to different data */
+ err = mtd->read(mtd, addr0, bufsize, &read, twopages);
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != bufsize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ (long long)addr0);
+ return err;
+ }
+ err = mtd->read(mtd, addrn - bufsize, bufsize, &read, twopages);
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != bufsize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ (long long)(addrn - bufsize));
+ return err;
+ }
+ memset(twopages, 0, bufsize);
+ read = 0;
+ err = mtd->read(mtd, addr, bufsize, &read, twopages);
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != bufsize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ (long long)addr);
+ return err;
+ }
+ memcpy(boundary, writebuf + mtd->erasesize - pgsize, pgsize);
+ set_random_data(boundary + pgsize, pgsize);
+ if (memcmp(twopages, boundary, bufsize)) {
+ printk(PRINT_PREF "error: verify failed at %#llx\n",
+ (long long)addr);
+ errcnt += 1;
+ }
+ next = oldnext;
+ }
+ return err;
+}
+
+static int crosstest(void)
+{
+ size_t read = 0;
+ int err = 0, i;
+ loff_t addr, addr0, addrn;
+ unsigned char *pp1, *pp2, *pp3, *pp4;
+
+ printk(PRINT_PREF "crosstest\n");
+ pp1 = kmalloc(pgsize * 4, GFP_KERNEL);
+ if (!pp1) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ return -ENOMEM;
+ }
+ pp2 = pp1 + pgsize;
+ pp3 = pp2 + pgsize;
+ pp4 = pp3 + pgsize;
+ memset(pp1, 0, pgsize * 4);
+
+ addr0 = 0;
+ for (i = 0; bbt[i] && i < ebcnt; ++i)
+ addr0 += mtd->erasesize;
+
+ addrn = mtd->size;
+ for (i = 0; bbt[ebcnt - i - 1] && i < ebcnt; ++i)
+ addrn -= mtd->erasesize;
+
+ /* Read 2nd-to-last page to pp1 */
+ read = 0;
+ addr = addrn - pgsize - pgsize;
+ err = mtd->read(mtd, addr, pgsize, &read, pp1);
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != pgsize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ (long long)addr);
+ kfree(pp1);
+ return err;
+ }
+
+ /* Read 3rd-to-last page to pp1 */
+ read = 0;
+ addr = addrn - pgsize - pgsize - pgsize;
+ err = mtd->read(mtd, addr, pgsize, &read, pp1);
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != pgsize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ (long long)addr);
+ kfree(pp1);
+ return err;
+ }
+
+ /* Read first page to pp2 */
+ read = 0;
+ addr = addr0;
+ printk(PRINT_PREF "reading page at %#llx\n", (long long)addr);
+ err = mtd->read(mtd, addr, pgsize, &read, pp2);
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != pgsize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ (long long)addr);
+ kfree(pp1);
+ return err;
+ }
+
+ /* Read last page to pp3 */
+ read = 0;
+ addr = addrn - pgsize;
+ printk(PRINT_PREF "reading page at %#llx\n", (long long)addr);
+ err = mtd->read(mtd, addr, pgsize, &read, pp3);
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != pgsize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ (long long)addr);
+ kfree(pp1);
+ return err;
+ }
+
+ /* Read first page again to pp4 */
+ read = 0;
+ addr = addr0;
+ printk(PRINT_PREF "reading page at %#llx\n", (long long)addr);
+ err = mtd->read(mtd, addr, pgsize, &read, pp4);
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != pgsize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ (long long)addr);
+ kfree(pp1);
+ return err;
+ }
+
+ /* pp2 and pp4 should be the same */
+ printk(PRINT_PREF "verifying pages read at %#llx match\n",
+ (long long)addr0);
+ if (memcmp(pp2, pp4, pgsize)) {
+ printk(PRINT_PREF "verify failed!\n");
+ errcnt += 1;
+ } else if (!err)
+ printk(PRINT_PREF "crosstest ok\n");
+ kfree(pp1);
+ return err;
+}
+
+static int erasecrosstest(void)
+{
+ size_t read = 0, written = 0;
+ int err = 0, i, ebnum, ok = 1, ebnum2;
+ loff_t addr0;
+ char *readbuf = twopages;
+
+ printk(PRINT_PREF "erasecrosstest\n");
+
+ ebnum = 0;
+ addr0 = 0;
+ for (i = 0; bbt[i] && i < ebcnt; ++i) {
+ addr0 += mtd->erasesize;
+ ebnum += 1;
+ }
+
+ ebnum2 = ebcnt - 1;
+ while (ebnum2 && bbt[ebnum2])
+ ebnum2 -= 1;
+
+ printk(PRINT_PREF "erasing block %d\n", ebnum);
+ err = erase_eraseblock(ebnum);
+ if (err)
+ return err;
+
+ printk(PRINT_PREF "writing 1st page of block %d\n", ebnum);
+ set_random_data(writebuf, pgsize);
+ strcpy(writebuf, "There is no data like this!");
+ err = mtd->write(mtd, addr0, pgsize, &written, writebuf);
+ if (err || written != pgsize) {
+ printk(PRINT_PREF "error: write failed at %#llx\n",
+ (long long)addr0);
+ return err ? err : -1;
+ }
+
+ printk(PRINT_PREF "reading 1st page of block %d\n", ebnum);
+ memset(readbuf, 0, pgsize);
+ err = mtd->read(mtd, addr0, pgsize, &read, readbuf);
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != pgsize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ (long long)addr0);
+ return err ? err : -1;
+ }
+
+ printk(PRINT_PREF "verifying 1st page of block %d\n", ebnum);
+ if (memcmp(writebuf, readbuf, pgsize)) {
+ printk(PRINT_PREF "verify failed!\n");
+ errcnt += 1;
+ ok = 0;
+ return err;
+ }
+
+ printk(PRINT_PREF "erasing block %d\n", ebnum);
+ err = erase_eraseblock(ebnum);
+ if (err)
+ return err;
+
+ printk(PRINT_PREF "writing 1st page of block %d\n", ebnum);
+ set_random_data(writebuf, pgsize);
+ strcpy(writebuf, "There is no data like this!");
+ err = mtd->write(mtd, addr0, pgsize, &written, writebuf);
+ if (err || written != pgsize) {
+ printk(PRINT_PREF "error: write failed at %#llx\n",
+ (long long)addr0);
+ return err ? err : -1;
+ }
+
+ printk(PRINT_PREF "erasing block %d\n", ebnum2);
+ err = erase_eraseblock(ebnum2);
+ if (err)
+ return err;
+
+ printk(PRINT_PREF "reading 1st page of block %d\n", ebnum);
+ memset(readbuf, 0, pgsize);
+ err = mtd->read(mtd, addr0, pgsize, &read, readbuf);
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != pgsize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ (long long)addr0);
+ return err ? err : -1;
+ }
+
+ printk(PRINT_PREF "verifying 1st page of block %d\n", ebnum);
+ if (memcmp(writebuf, readbuf, pgsize)) {
+ printk(PRINT_PREF "verify failed!\n");
+ errcnt += 1;
+ ok = 0;
+ }
+
+ if (ok && !err)
+ printk(PRINT_PREF "erasecrosstest ok\n");
+ return err;
+}
+
+static int erasetest(void)
+{
+ size_t read = 0, written = 0;
+ int err = 0, i, ebnum, ok = 1;
+ loff_t addr0;
+
+ printk(PRINT_PREF "erasetest\n");
+
+ ebnum = 0;
+ addr0 = 0;
+ for (i = 0; bbt[i] && i < ebcnt; ++i) {
+ addr0 += mtd->erasesize;
+ ebnum += 1;
+ }
+
+ printk(PRINT_PREF "erasing block %d\n", ebnum);
+ err = erase_eraseblock(ebnum);
+ if (err)
+ return err;
+
+ printk(PRINT_PREF "writing 1st page of block %d\n", ebnum);
+ set_random_data(writebuf, pgsize);
+ err = mtd->write(mtd, addr0, pgsize, &written, writebuf);
+ if (err || written != pgsize) {
+ printk(PRINT_PREF "error: write failed at %#llx\n",
+ (long long)addr0);
+ return err ? err : -1;
+ }
+
+ printk(PRINT_PREF "erasing block %d\n", ebnum);
+ err = erase_eraseblock(ebnum);
+ if (err)
+ return err;
+
+ printk(PRINT_PREF "reading 1st page of block %d\n", ebnum);
+ err = mtd->read(mtd, addr0, pgsize, &read, twopages);
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != pgsize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ (long long)addr0);
+ return err ? err : -1;
+ }
+
+ printk(PRINT_PREF "verifying 1st page of block %d is all 0xff\n",
+ ebnum);
+ for (i = 0; i < pgsize; ++i)
+ if (twopages[i] != 0xff) {
+ printk(PRINT_PREF "verifying all 0xff failed at %d\n",
+ i);
+ errcnt += 1;
+ ok = 0;
+ break;
+ }
+
+ if (ok && !err)
+ printk(PRINT_PREF "erasetest ok\n");
+
+ return err;
+}
+
+static int is_block_bad(int ebnum)
+{
+ loff_t addr = ebnum * mtd->erasesize;
+ int ret;
+
+ ret = mtd->block_isbad(mtd, addr);
+ if (ret)
+ printk(PRINT_PREF "block %d is bad\n", ebnum);
+ return ret;
+}
+
+static int scan_for_bad_eraseblocks(void)
+{
+ int i, bad = 0;
+
+ bbt = kmalloc(ebcnt, GFP_KERNEL);
+ if (!bbt) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ return -ENOMEM;
+ }
+ memset(bbt, 0 , ebcnt);
+
+ printk(PRINT_PREF "scanning for bad eraseblocks\n");
+ for (i = 0; i < ebcnt; ++i) {
+ bbt[i] = is_block_bad(i) ? 1 : 0;
+ if (bbt[i])
+ bad += 1;
+ cond_resched();
+ }
+ printk(PRINT_PREF "scanned %d eraseblocks, %d are bad\n", i, bad);
+ return 0;
+}
+
+static int __init mtd_pagetest_init(void)
+{
+ int err = 0;
+ uint64_t tmp;
+ uint32_t i;
+
+ printk(KERN_INFO "\n");
+ printk(KERN_INFO "=================================================\n");
+ printk(PRINT_PREF "MTD device: %d\n", dev);
+
+ mtd = get_mtd_device(NULL, dev);
+ if (IS_ERR(mtd)) {
+ err = PTR_ERR(mtd);
+ printk(PRINT_PREF "error: cannot get MTD device\n");
+ return err;
+ }
+
+ if (mtd->type != MTD_NANDFLASH) {
+ printk(PRINT_PREF "this test requires NAND flash\n");
+ goto out;
+ }
+
+ tmp = mtd->size;
+ do_div(tmp, mtd->erasesize);
+ ebcnt = tmp;
+ pgcnt = mtd->erasesize / mtd->writesize;
+
+ printk(PRINT_PREF "MTD device size %llu, eraseblock size %u, "
+ "page size %u, count of eraseblocks %u, pages per "
+ "eraseblock %u, OOB size %u\n",
+ (unsigned long long)mtd->size, mtd->erasesize,
+ pgsize, ebcnt, pgcnt, mtd->oobsize);
+
+ err = -ENOMEM;
+ bufsize = pgsize * 2;
+ writebuf = kmalloc(mtd->erasesize, GFP_KERNEL);
+ if (!writebuf) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ goto out;
+ }
+ twopages = kmalloc(bufsize, GFP_KERNEL);
+ if (!twopages) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ goto out;
+ }
+ boundary = kmalloc(bufsize, GFP_KERNEL);
+ if (!boundary) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ goto out;
+ }
+
+ err = scan_for_bad_eraseblocks();
+ if (err)
+ goto out;
+
+ /* Erase all eraseblocks */
+ printk(PRINT_PREF "erasing whole device\n");
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = erase_eraseblock(i);
+ if (err)
+ goto out;
+ cond_resched();
+ }
+ printk(PRINT_PREF "erased %u eraseblocks\n", i);
+
+ /* Write all eraseblocks */
+ simple_srand(1);
+ printk(PRINT_PREF "writing whole device\n");
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = write_eraseblock(i);
+ if (err)
+ goto out;
+ if (i % 256 == 0)
+ printk(PRINT_PREF "written up to eraseblock %u\n", i);
+ cond_resched();
+ }
+ printk(PRINT_PREF "written %u eraseblocks\n", i);
+
+ /* Check all eraseblocks */
+ simple_srand(1);
+ printk(PRINT_PREF "verifying all eraseblocks\n");
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = verify_eraseblock(i);
+ if (err)
+ goto out;
+ if (i % 256 == 0)
+ printk(PRINT_PREF "verified up to eraseblock %u\n", i);
+ cond_resched();
+ }
+ printk(PRINT_PREF "verified %u eraseblocks\n", i);
+
+ err = crosstest();
+ if (err)
+ goto out;
+
+ err = erasecrosstest();
+ if (err)
+ goto out;
+
+ err = erasetest();
+ if (err)
+ goto out;
+
+ printk(PRINT_PREF "finished with %d errors\n", errcnt);
+out:
+
+ kfree(bbt);
+ kfree(boundary);
+ kfree(twopages);
+ kfree(writebuf);
+ put_mtd_device(mtd);
+ if (err)
+ printk(PRINT_PREF "error %d occurred\n", err);
+ printk(KERN_INFO "=================================================\n");
+ return err;
+}
+module_init(mtd_pagetest_init);
+
+static void __exit mtd_pagetest_exit(void)
+{
+ return;
+}
+module_exit(mtd_pagetest_exit);
+
+MODULE_DESCRIPTION("NAND page test");
+MODULE_AUTHOR("Adrian Hunter");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Copyright (C) 2006-2008 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; see the file COPYING. If not, write to the Free Software
+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Check MTD device read.
+ *
+ * Author: Adrian Hunter <ext-adrian.hunter@nokia.com>
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/err.h>
+#include <linux/mtd/mtd.h>
+#include <linux/sched.h>
+
+#define PRINT_PREF KERN_INFO "mtd_readtest: "
+
+static int dev;
+module_param(dev, int, S_IRUGO);
+MODULE_PARM_DESC(dev, "MTD device number to use");
+
+static struct mtd_info *mtd;
+static unsigned char *iobuf;
+static unsigned char *iobuf1;
+static unsigned char *bbt;
+
+static int pgsize;
+static int ebcnt;
+static int pgcnt;
+
+static int read_eraseblock_by_page(int ebnum)
+{
+ size_t read = 0;
+ int i, ret, err = 0;
+ loff_t addr = ebnum * mtd->erasesize;
+ void *buf = iobuf;
+ void *oobbuf = iobuf1;
+
+ for (i = 0; i < pgcnt; i++) {
+ memset(buf, 0 , pgcnt);
+ ret = mtd->read(mtd, addr, pgsize, &read, buf);
+ if (ret == -EUCLEAN)
+ ret = 0;
+ if (ret || read != pgsize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ (long long)addr);
+ if (!err)
+ err = ret;
+ if (!err)
+ err = -EINVAL;
+ }
+ if (mtd->oobsize) {
+ struct mtd_oob_ops ops;
+
+ ops.mode = MTD_OOB_PLACE;
+ ops.len = 0;
+ ops.retlen = 0;
+ ops.ooblen = mtd->oobsize;
+ ops.oobretlen = 0;
+ ops.ooboffs = 0;
+ ops.datbuf = 0;
+ ops.oobbuf = oobbuf;
+ ret = mtd->read_oob(mtd, addr, &ops);
+ if (ret || ops.oobretlen != mtd->oobsize) {
+ printk(PRINT_PREF "error: read oob failed at "
+ "%#llx\n", (long long)addr);
+ if (!err)
+ err = ret;
+ if (!err)
+ err = -EINVAL;
+ }
+ oobbuf += mtd->oobsize;
+ }
+ addr += pgsize;
+ buf += pgsize;
+ }
+
+ return err;
+}
+
+static void dump_eraseblock(int ebnum)
+{
+ int i, j, n;
+ char line[128];
+ int pg, oob;
+
+ printk(PRINT_PREF "dumping eraseblock %d\n", ebnum);
+ n = mtd->erasesize;
+ for (i = 0; i < n;) {
+ char *p = line;
+
+ p += sprintf(p, "%05x: ", i);
+ for (j = 0; j < 32 && i < n; j++, i++)
+ p += sprintf(p, "%02x", (unsigned int)iobuf[i]);
+ printk(KERN_CRIT "%s\n", line);
+ cond_resched();
+ }
+ if (!mtd->oobsize)
+ return;
+ printk(PRINT_PREF "dumping oob from eraseblock %d\n", ebnum);
+ n = mtd->oobsize;
+ for (pg = 0, i = 0; pg < pgcnt; pg++)
+ for (oob = 0; oob < n;) {
+ char *p = line;
+
+ p += sprintf(p, "%05x: ", i);
+ for (j = 0; j < 32 && oob < n; j++, oob++, i++)
+ p += sprintf(p, "%02x",
+ (unsigned int)iobuf1[i]);
+ printk(KERN_CRIT "%s\n", line);
+ cond_resched();
+ }
+}
+
+static int is_block_bad(int ebnum)
+{
+ loff_t addr = ebnum * mtd->erasesize;
+ int ret;
+
+ ret = mtd->block_isbad(mtd, addr);
+ if (ret)
+ printk(PRINT_PREF "block %d is bad\n", ebnum);
+ return ret;
+}
+
+static int scan_for_bad_eraseblocks(void)
+{
+ int i, bad = 0;
+
+ bbt = kmalloc(ebcnt, GFP_KERNEL);
+ if (!bbt) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ return -ENOMEM;
+ }
+ memset(bbt, 0 , ebcnt);
+
+ printk(PRINT_PREF "scanning for bad eraseblocks\n");
+ for (i = 0; i < ebcnt; ++i) {
+ bbt[i] = is_block_bad(i) ? 1 : 0;
+ if (bbt[i])
+ bad += 1;
+ cond_resched();
+ }
+ printk(PRINT_PREF "scanned %d eraseblocks, %d are bad\n", i, bad);
+ return 0;
+}
+
+static int __init mtd_readtest_init(void)
+{
+ uint64_t tmp;
+ int err, i;
+
+ printk(KERN_INFO "\n");
+ printk(KERN_INFO "=================================================\n");
+ printk(PRINT_PREF "MTD device: %d\n", dev);
+
+ mtd = get_mtd_device(NULL, dev);
+ if (IS_ERR(mtd)) {
+ err = PTR_ERR(mtd);
+ printk(PRINT_PREF "error: Cannot get MTD device\n");
+ return err;
+ }
+
+ if (mtd->writesize == 1) {
+ printk(PRINT_PREF "not NAND flash, assume page size is 512 "
+ "bytes.\n");
+ pgsize = 512;
+ } else
+ pgsize = mtd->writesize;
+
+ tmp = mtd->size;
+ do_div(tmp, mtd->erasesize);
+ ebcnt = tmp;
+ pgcnt = mtd->erasesize / mtd->writesize;
+
+ printk(PRINT_PREF "MTD device size %llu, eraseblock size %u, "
+ "page size %u, count of eraseblocks %u, pages per "
+ "eraseblock %u, OOB size %u\n",
+ (unsigned long long)mtd->size, mtd->erasesize,
+ pgsize, ebcnt, pgcnt, mtd->oobsize);
+
+ err = -ENOMEM;
+ iobuf = kmalloc(mtd->erasesize, GFP_KERNEL);
+ if (!iobuf) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ goto out;
+ }
+ iobuf1 = kmalloc(mtd->erasesize, GFP_KERNEL);
+ if (!iobuf1) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ goto out;
+ }
+
+ err = scan_for_bad_eraseblocks();
+ if (err)
+ goto out;
+
+ /* Read all eraseblocks 1 page at a time */
+ printk(PRINT_PREF "testing page read\n");
+ for (i = 0; i < ebcnt; ++i) {
+ int ret;
+
+ if (bbt[i])
+ continue;
+ ret = read_eraseblock_by_page(i);
+ if (ret) {
+ dump_eraseblock(i);
+ if (!err)
+ err = ret;
+ }
+ cond_resched();
+ }
+
+ if (err)
+ printk(PRINT_PREF "finished with errors\n");
+ else
+ printk(PRINT_PREF "finished\n");
+
+out:
+
+ kfree(iobuf);
+ kfree(iobuf1);
+ kfree(bbt);
+ put_mtd_device(mtd);
+ if (err)
+ printk(PRINT_PREF "error %d occurred\n", err);
+ printk(KERN_INFO "=================================================\n");
+ return err;
+}
+module_init(mtd_readtest_init);
+
+static void __exit mtd_readtest_exit(void)
+{
+ return;
+}
+module_exit(mtd_readtest_exit);
+
+MODULE_DESCRIPTION("Read test module");
+MODULE_AUTHOR("Adrian Hunter");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Copyright (C) 2007 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; see the file COPYING. If not, write to the Free Software
+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Test read and write speed of a MTD device.
+ *
+ * Author: Adrian Hunter <ext-adrian.hunter@nokia.com>
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/err.h>
+#include <linux/mtd/mtd.h>
+#include <linux/sched.h>
+
+#define PRINT_PREF KERN_INFO "mtd_speedtest: "
+
+static int dev;
+module_param(dev, int, S_IRUGO);
+MODULE_PARM_DESC(dev, "MTD device number to use");
+
+static struct mtd_info *mtd;
+static unsigned char *iobuf;
+static unsigned char *bbt;
+
+static int pgsize;
+static int ebcnt;
+static int pgcnt;
+static int goodebcnt;
+static struct timeval start, finish;
+static unsigned long next = 1;
+
+static inline unsigned int simple_rand(void)
+{
+ next = next * 1103515245 + 12345;
+ return (unsigned int)((next / 65536) % 32768);
+}
+
+static inline void simple_srand(unsigned long seed)
+{
+ next = seed;
+}
+
+static void set_random_data(unsigned char *buf, size_t len)
+{
+ size_t i;
+
+ for (i = 0; i < len; ++i)
+ buf[i] = simple_rand();
+}
+
+static int erase_eraseblock(int ebnum)
+{
+ int err;
+ struct erase_info ei;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ memset(&ei, 0, sizeof(struct erase_info));
+ ei.mtd = mtd;
+ ei.addr = addr;
+ ei.len = mtd->erasesize;
+
+ err = mtd->erase(mtd, &ei);
+ if (err) {
+ printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum);
+ return err;
+ }
+
+ if (ei.state == MTD_ERASE_FAILED) {
+ printk(PRINT_PREF "some erase error occurred at EB %d\n",
+ ebnum);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int erase_whole_device(void)
+{
+ int err;
+ unsigned int i;
+
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = erase_eraseblock(i);
+ if (err)
+ return err;
+ cond_resched();
+ }
+ return 0;
+}
+
+static int write_eraseblock(int ebnum)
+{
+ size_t written = 0;
+ int err = 0;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ err = mtd->write(mtd, addr, mtd->erasesize, &written, iobuf);
+ if (err || written != mtd->erasesize) {
+ printk(PRINT_PREF "error: write failed at %#llx\n", addr);
+ if (!err)
+ err = -EINVAL;
+ }
+
+ return err;
+}
+
+static int write_eraseblock_by_page(int ebnum)
+{
+ size_t written = 0;
+ int i, err = 0;
+ loff_t addr = ebnum * mtd->erasesize;
+ void *buf = iobuf;
+
+ for (i = 0; i < pgcnt; i++) {
+ err = mtd->write(mtd, addr, pgsize, &written, buf);
+ if (err || written != pgsize) {
+ printk(PRINT_PREF "error: write failed at %#llx\n",
+ addr);
+ if (!err)
+ err = -EINVAL;
+ break;
+ }
+ addr += pgsize;
+ buf += pgsize;
+ }
+
+ return err;
+}
+
+static int write_eraseblock_by_2pages(int ebnum)
+{
+ size_t written = 0, sz = pgsize * 2;
+ int i, n = pgcnt / 2, err = 0;
+ loff_t addr = ebnum * mtd->erasesize;
+ void *buf = iobuf;
+
+ for (i = 0; i < n; i++) {
+ err = mtd->write(mtd, addr, sz, &written, buf);
+ if (err || written != sz) {
+ printk(PRINT_PREF "error: write failed at %#llx\n",
+ addr);
+ if (!err)
+ err = -EINVAL;
+ return err;
+ }
+ addr += sz;
+ buf += sz;
+ }
+ if (pgcnt % 2) {
+ err = mtd->write(mtd, addr, pgsize, &written, buf);
+ if (err || written != pgsize) {
+ printk(PRINT_PREF "error: write failed at %#llx\n",
+ addr);
+ if (!err)
+ err = -EINVAL;
+ }
+ }
+
+ return err;
+}
+
+static int read_eraseblock(int ebnum)
+{
+ size_t read = 0;
+ int err = 0;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ err = mtd->read(mtd, addr, mtd->erasesize, &read, iobuf);
+ /* Ignore corrected ECC errors */
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != mtd->erasesize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n", addr);
+ if (!err)
+ err = -EINVAL;
+ }
+
+ return err;
+}
+
+static int read_eraseblock_by_page(int ebnum)
+{
+ size_t read = 0;
+ int i, err = 0;
+ loff_t addr = ebnum * mtd->erasesize;
+ void *buf = iobuf;
+
+ for (i = 0; i < pgcnt; i++) {
+ err = mtd->read(mtd, addr, pgsize, &read, buf);
+ /* Ignore corrected ECC errors */
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != pgsize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ addr);
+ if (!err)
+ err = -EINVAL;
+ break;
+ }
+ addr += pgsize;
+ buf += pgsize;
+ }
+
+ return err;
+}
+
+static int read_eraseblock_by_2pages(int ebnum)
+{
+ size_t read = 0, sz = pgsize * 2;
+ int i, n = pgcnt / 2, err = 0;
+ loff_t addr = ebnum * mtd->erasesize;
+ void *buf = iobuf;
+
+ for (i = 0; i < n; i++) {
+ err = mtd->read(mtd, addr, sz, &read, buf);
+ /* Ignore corrected ECC errors */
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != sz) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ addr);
+ if (!err)
+ err = -EINVAL;
+ return err;
+ }
+ addr += sz;
+ buf += sz;
+ }
+ if (pgcnt % 2) {
+ err = mtd->read(mtd, addr, pgsize, &read, buf);
+ /* Ignore corrected ECC errors */
+ if (err == -EUCLEAN)
+ err = 0;
+ if (err || read != pgsize) {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ addr);
+ if (!err)
+ err = -EINVAL;
+ }
+ }
+
+ return err;
+}
+
+static int is_block_bad(int ebnum)
+{
+ loff_t addr = ebnum * mtd->erasesize;
+ int ret;
+
+ ret = mtd->block_isbad(mtd, addr);
+ if (ret)
+ printk(PRINT_PREF "block %d is bad\n", ebnum);
+ return ret;
+}
+
+static inline void start_timing(void)
+{
+ do_gettimeofday(&start);
+}
+
+static inline void stop_timing(void)
+{
+ do_gettimeofday(&finish);
+}
+
+static long calc_speed(void)
+{
+ long ms, k, speed;
+
+ ms = (finish.tv_sec - start.tv_sec) * 1000 +
+ (finish.tv_usec - start.tv_usec) / 1000;
+ k = goodebcnt * mtd->erasesize / 1024;
+ speed = (k * 1000) / ms;
+ return speed;
+}
+
+static int scan_for_bad_eraseblocks(void)
+{
+ int i, bad = 0;
+
+ bbt = kmalloc(ebcnt, GFP_KERNEL);
+ if (!bbt) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ return -ENOMEM;
+ }
+ memset(bbt, 0 , ebcnt);
+
+ printk(PRINT_PREF "scanning for bad eraseblocks\n");
+ for (i = 0; i < ebcnt; ++i) {
+ bbt[i] = is_block_bad(i) ? 1 : 0;
+ if (bbt[i])
+ bad += 1;
+ cond_resched();
+ }
+ printk(PRINT_PREF "scanned %d eraseblocks, %d are bad\n", i, bad);
+ goodebcnt = ebcnt - bad;
+ return 0;
+}
+
+static int __init mtd_speedtest_init(void)
+{
+ int err, i;
+ long speed;
+ uint64_t tmp;
+
+ printk(KERN_INFO "\n");
+ printk(KERN_INFO "=================================================\n");
+ printk(PRINT_PREF "MTD device: %d\n", dev);
+
+ mtd = get_mtd_device(NULL, dev);
+ if (IS_ERR(mtd)) {
+ err = PTR_ERR(mtd);
+ printk(PRINT_PREF "error: cannot get MTD device\n");
+ return err;
+ }
+
+ if (mtd->writesize == 1) {
+ printk(PRINT_PREF "not NAND flash, assume page size is 512 "
+ "bytes.\n");
+ pgsize = 512;
+ } else
+ pgsize = mtd->writesize;
+
+ tmp = mtd->size;
+ do_div(tmp, mtd->erasesize);
+ ebcnt = tmp;
+ pgcnt = mtd->erasesize / mtd->writesize;
+
+ printk(PRINT_PREF "MTD device size %llu, eraseblock size %u, "
+ "page size %u, count of eraseblocks %u, pages per "
+ "eraseblock %u, OOB size %u\n",
+ (unsigned long long)mtd->size, mtd->erasesize,
+ pgsize, ebcnt, pgcnt, mtd->oobsize);
+
+ err = -ENOMEM;
+ iobuf = kmalloc(mtd->erasesize, GFP_KERNEL);
+ if (!iobuf) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ goto out;
+ }
+
+ simple_srand(1);
+ set_random_data(iobuf, mtd->erasesize);
+
+ err = scan_for_bad_eraseblocks();
+ if (err)
+ goto out;
+
+ err = erase_whole_device();
+ if (err)
+ goto out;
+
+ /* Write all eraseblocks, 1 eraseblock at a time */
+ printk(PRINT_PREF "testing eraseblock write speed\n");
+ start_timing();
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = write_eraseblock(i);
+ if (err)
+ goto out;
+ cond_resched();
+ }
+ stop_timing();
+ speed = calc_speed();
+ printk(PRINT_PREF "eraseblock write speed is %ld KiB/s\n", speed);
+
+ /* Read all eraseblocks, 1 eraseblock at a time */
+ printk(PRINT_PREF "testing eraseblock read speed\n");
+ start_timing();
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = read_eraseblock(i);
+ if (err)
+ goto out;
+ cond_resched();
+ }
+ stop_timing();
+ speed = calc_speed();
+ printk(PRINT_PREF "eraseblock read speed is %ld KiB/s\n", speed);
+
+ err = erase_whole_device();
+ if (err)
+ goto out;
+
+ /* Write all eraseblocks, 1 page at a time */
+ printk(PRINT_PREF "testing page write speed\n");
+ start_timing();
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = write_eraseblock_by_page(i);
+ if (err)
+ goto out;
+ cond_resched();
+ }
+ stop_timing();
+ speed = calc_speed();
+ printk(PRINT_PREF "page write speed is %ld KiB/s\n", speed);
+
+ /* Read all eraseblocks, 1 page at a time */
+ printk(PRINT_PREF "testing page read speed\n");
+ start_timing();
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = read_eraseblock_by_page(i);
+ if (err)
+ goto out;
+ cond_resched();
+ }
+ stop_timing();
+ speed = calc_speed();
+ printk(PRINT_PREF "page read speed is %ld KiB/s\n", speed);
+
+ err = erase_whole_device();
+ if (err)
+ goto out;
+
+ /* Write all eraseblocks, 2 pages at a time */
+ printk(PRINT_PREF "testing 2 page write speed\n");
+ start_timing();
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = write_eraseblock_by_2pages(i);
+ if (err)
+ goto out;
+ cond_resched();
+ }
+ stop_timing();
+ speed = calc_speed();
+ printk(PRINT_PREF "2 page write speed is %ld KiB/s\n", speed);
+
+ /* Read all eraseblocks, 2 pages at a time */
+ printk(PRINT_PREF "testing 2 page read speed\n");
+ start_timing();
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = read_eraseblock_by_2pages(i);
+ if (err)
+ goto out;
+ cond_resched();
+ }
+ stop_timing();
+ speed = calc_speed();
+ printk(PRINT_PREF "2 page read speed is %ld KiB/s\n", speed);
+
+ /* Erase all eraseblocks */
+ printk(PRINT_PREF "Testing erase speed\n");
+ start_timing();
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = erase_eraseblock(i);
+ if (err)
+ goto out;
+ cond_resched();
+ }
+ stop_timing();
+ speed = calc_speed();
+ printk(PRINT_PREF "erase speed is %ld KiB/s\n", speed);
+
+ printk(PRINT_PREF "finished\n");
+out:
+ kfree(iobuf);
+ kfree(bbt);
+ put_mtd_device(mtd);
+ if (err)
+ printk(PRINT_PREF "error %d occurred\n", err);
+ printk(KERN_INFO "=================================================\n");
+ return err;
+}
+module_init(mtd_speedtest_init);
+
+static void __exit mtd_speedtest_exit(void)
+{
+ return;
+}
+module_exit(mtd_speedtest_exit);
+
+MODULE_DESCRIPTION("Speed test module");
+MODULE_AUTHOR("Adrian Hunter");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Copyright (C) 2006-2008 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; see the file COPYING. If not, write to the Free Software
+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Test random reads, writes and erases on MTD device.
+ *
+ * Author: Adrian Hunter <ext-adrian.hunter@nokia.com>
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/err.h>
+#include <linux/mtd/mtd.h>
+#include <linux/sched.h>
+#include <linux/vmalloc.h>
+
+#define PRINT_PREF KERN_INFO "mtd_stresstest: "
+
+static int dev;
+module_param(dev, int, S_IRUGO);
+MODULE_PARM_DESC(dev, "MTD device number to use");
+
+static int count = 10000;
+module_param(count, int, S_IRUGO);
+MODULE_PARM_DESC(count, "Number of operations to do (default is 10000)");
+
+static struct mtd_info *mtd;
+static unsigned char *writebuf;
+static unsigned char *readbuf;
+static unsigned char *bbt;
+static int *offsets;
+
+static int pgsize;
+static int bufsize;
+static int ebcnt;
+static int pgcnt;
+static unsigned long next = 1;
+
+static inline unsigned int simple_rand(void)
+{
+ next = next * 1103515245 + 12345;
+ return (unsigned int)((next / 65536) % 32768);
+}
+
+static inline void simple_srand(unsigned long seed)
+{
+ next = seed;
+}
+
+static int rand_eb(void)
+{
+ int eb;
+
+again:
+ if (ebcnt < 32768)
+ eb = simple_rand();
+ else
+ eb = (simple_rand() << 15) | simple_rand();
+ /* Read or write up 2 eraseblocks at a time - hence 'ebcnt - 1' */
+ eb %= (ebcnt - 1);
+ if (bbt[eb])
+ goto again;
+ return eb;
+}
+
+static int rand_offs(void)
+{
+ int offs;
+
+ if (bufsize < 32768)
+ offs = simple_rand();
+ else
+ offs = (simple_rand() << 15) | simple_rand();
+ offs %= bufsize;
+ return offs;
+}
+
+static int rand_len(int offs)
+{
+ int len;
+
+ if (bufsize < 32768)
+ len = simple_rand();
+ else
+ len = (simple_rand() << 15) | simple_rand();
+ len %= (bufsize - offs);
+ return len;
+}
+
+static int erase_eraseblock(int ebnum)
+{
+ int err;
+ struct erase_info ei;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ memset(&ei, 0, sizeof(struct erase_info));
+ ei.mtd = mtd;
+ ei.addr = addr;
+ ei.len = mtd->erasesize;
+
+ err = mtd->erase(mtd, &ei);
+ if (unlikely(err)) {
+ printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum);
+ return err;
+ }
+
+ if (unlikely(ei.state == MTD_ERASE_FAILED)) {
+ printk(PRINT_PREF "some erase error occurred at EB %d\n",
+ ebnum);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int is_block_bad(int ebnum)
+{
+ loff_t addr = ebnum * mtd->erasesize;
+ int ret;
+
+ ret = mtd->block_isbad(mtd, addr);
+ if (ret)
+ printk(PRINT_PREF "block %d is bad\n", ebnum);
+ return ret;
+}
+
+static int do_read(void)
+{
+ size_t read = 0;
+ int eb = rand_eb();
+ int offs = rand_offs();
+ int len = rand_len(offs), err;
+ loff_t addr;
+
+ if (bbt[eb + 1]) {
+ if (offs >= mtd->erasesize)
+ offs -= mtd->erasesize;
+ if (offs + len > mtd->erasesize)
+ len = mtd->erasesize - offs;
+ }
+ addr = eb * mtd->erasesize + offs;
+ err = mtd->read(mtd, addr, len, &read, readbuf);
+ if (err == -EUCLEAN)
+ err = 0;
+ if (unlikely(err || read != len)) {
+ printk(PRINT_PREF "error: read failed at 0x%llx\n",
+ (long long)addr);
+ if (!err)
+ err = -EINVAL;
+ return err;
+ }
+ return 0;
+}
+
+static int do_write(void)
+{
+ int eb = rand_eb(), offs, err, len;
+ size_t written = 0;
+ loff_t addr;
+
+ offs = offsets[eb];
+ if (offs >= mtd->erasesize) {
+ err = erase_eraseblock(eb);
+ if (err)
+ return err;
+ offs = offsets[eb] = 0;
+ }
+ len = rand_len(offs);
+ len = ((len + pgsize - 1) / pgsize) * pgsize;
+ if (offs + len > mtd->erasesize) {
+ if (bbt[eb + 1])
+ len = mtd->erasesize - offs;
+ else {
+ err = erase_eraseblock(eb + 1);
+ if (err)
+ return err;
+ offsets[eb + 1] = 0;
+ }
+ }
+ addr = eb * mtd->erasesize + offs;
+ err = mtd->write(mtd, addr, len, &written, writebuf);
+ if (unlikely(err || written != len)) {
+ printk(PRINT_PREF "error: write failed at 0x%llx\n",
+ (long long)addr);
+ if (!err)
+ err = -EINVAL;
+ return err;
+ }
+ offs += len;
+ while (offs > mtd->erasesize) {
+ offsets[eb++] = mtd->erasesize;
+ offs -= mtd->erasesize;
+ }
+ offsets[eb] = offs;
+ return 0;
+}
+
+static int do_operation(void)
+{
+ if (simple_rand() & 1)
+ return do_read();
+ else
+ return do_write();
+}
+
+static int scan_for_bad_eraseblocks(void)
+{
+ int i, bad = 0;
+
+ bbt = kmalloc(ebcnt, GFP_KERNEL);
+ if (!bbt) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ return -ENOMEM;
+ }
+ memset(bbt, 0 , ebcnt);
+
+ printk(PRINT_PREF "scanning for bad eraseblocks\n");
+ for (i = 0; i < ebcnt; ++i) {
+ bbt[i] = is_block_bad(i) ? 1 : 0;
+ if (bbt[i])
+ bad += 1;
+ cond_resched();
+ }
+ printk(PRINT_PREF "scanned %d eraseblocks, %d are bad\n", i, bad);
+ return 0;
+}
+
+static int __init mtd_stresstest_init(void)
+{
+ int err;
+ int i, op;
+ uint64_t tmp;
+
+ printk(KERN_INFO "\n");
+ printk(KERN_INFO "=================================================\n");
+ printk(PRINT_PREF "MTD device: %d\n", dev);
+
+ mtd = get_mtd_device(NULL, dev);
+ if (IS_ERR(mtd)) {
+ err = PTR_ERR(mtd);
+ printk(PRINT_PREF "error: cannot get MTD device\n");
+ return err;
+ }
+
+ if (mtd->writesize == 1) {
+ printk(PRINT_PREF "not NAND flash, assume page size is 512 "
+ "bytes.\n");
+ pgsize = 512;
+ } else
+ pgsize = mtd->writesize;
+
+ tmp = mtd->size;
+ do_div(tmp, mtd->erasesize);
+ ebcnt = tmp;
+ pgcnt = mtd->erasesize / mtd->writesize;
+
+ printk(PRINT_PREF "MTD device size %llu, eraseblock size %u, "
+ "page size %u, count of eraseblocks %u, pages per "
+ "eraseblock %u, OOB size %u\n",
+ (unsigned long long)mtd->size, mtd->erasesize,
+ pgsize, ebcnt, pgcnt, mtd->oobsize);
+
+ /* Read or write up 2 eraseblocks at a time */
+ bufsize = mtd->erasesize * 2;
+
+ err = -ENOMEM;
+ readbuf = vmalloc(bufsize);
+ writebuf = vmalloc(bufsize);
+ offsets = kmalloc(ebcnt * sizeof(int), GFP_KERNEL);
+ if (!readbuf || !writebuf || !offsets) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ goto out;
+ }
+ for (i = 0; i < ebcnt; i++)
+ offsets[i] = mtd->erasesize;
+ simple_srand(current->pid);
+ for (i = 0; i < bufsize; i++)
+ writebuf[i] = simple_rand();
+
+ err = scan_for_bad_eraseblocks();
+ if (err)
+ goto out;
+
+ /* Do operations */
+ printk(PRINT_PREF "doing operations\n");
+ for (op = 0; op < count; op++) {
+ if ((op & 1023) == 0)
+ printk(PRINT_PREF "%d operations done\n", op);
+ err = do_operation();
+ if (err)
+ goto out;
+ cond_resched();
+ }
+ printk(PRINT_PREF "finished, %d operations done\n", op);
+
+out:
+ kfree(offsets);
+ kfree(bbt);
+ vfree(writebuf);
+ vfree(readbuf);
+ put_mtd_device(mtd);
+ if (err)
+ printk(PRINT_PREF "error %d occurred\n", err);
+ printk(KERN_INFO "=================================================\n");
+ return err;
+}
+module_init(mtd_stresstest_init);
+
+static void __exit mtd_stresstest_exit(void)
+{
+ return;
+}
+module_exit(mtd_stresstest_exit);
+
+MODULE_DESCRIPTION("Stress test module");
+MODULE_AUTHOR("Adrian Hunter");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Copyright (C) 2006-2007 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; see the file COPYING. If not, write to the Free Software
+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Test sub-page read and write on MTD device.
+ * Author: Adrian Hunter <ext-adrian.hunter@nokia.com>
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/err.h>
+#include <linux/mtd/mtd.h>
+#include <linux/sched.h>
+
+#define PRINT_PREF KERN_INFO "mtd_subpagetest: "
+
+static int dev;
+module_param(dev, int, S_IRUGO);
+MODULE_PARM_DESC(dev, "MTD device number to use");
+
+static struct mtd_info *mtd;
+static unsigned char *writebuf;
+static unsigned char *readbuf;
+static unsigned char *bbt;
+
+static int subpgsize;
+static int bufsize;
+static int ebcnt;
+static int pgcnt;
+static int errcnt;
+static unsigned long next = 1;
+
+static inline unsigned int simple_rand(void)
+{
+ next = next * 1103515245 + 12345;
+ return (unsigned int)((next / 65536) % 32768);
+}
+
+static inline void simple_srand(unsigned long seed)
+{
+ next = seed;
+}
+
+static void set_random_data(unsigned char *buf, size_t len)
+{
+ size_t i;
+
+ for (i = 0; i < len; ++i)
+ buf[i] = simple_rand();
+}
+
+static inline void clear_data(unsigned char *buf, size_t len)
+{
+ memset(buf, 0, len);
+}
+
+static int erase_eraseblock(int ebnum)
+{
+ int err;
+ struct erase_info ei;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ memset(&ei, 0, sizeof(struct erase_info));
+ ei.mtd = mtd;
+ ei.addr = addr;
+ ei.len = mtd->erasesize;
+
+ err = mtd->erase(mtd, &ei);
+ if (err) {
+ printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum);
+ return err;
+ }
+
+ if (ei.state == MTD_ERASE_FAILED) {
+ printk(PRINT_PREF "some erase error occurred at EB %d\n",
+ ebnum);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int erase_whole_device(void)
+{
+ int err;
+ unsigned int i;
+
+ printk(PRINT_PREF "erasing whole device\n");
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = erase_eraseblock(i);
+ if (err)
+ return err;
+ cond_resched();
+ }
+ printk(PRINT_PREF "erased %u eraseblocks\n", i);
+ return 0;
+}
+
+static int write_eraseblock(int ebnum)
+{
+ size_t written = 0;
+ int err = 0;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ set_random_data(writebuf, subpgsize);
+ err = mtd->write(mtd, addr, subpgsize, &written, writebuf);
+ if (unlikely(err || written != subpgsize)) {
+ printk(PRINT_PREF "error: write failed at %#llx\n",
+ (long long)addr);
+ if (written != subpgsize) {
+ printk(PRINT_PREF " write size: %#x\n", subpgsize);
+ printk(PRINT_PREF " written: %#zx\n", written);
+ }
+ return err ? err : -1;
+ }
+
+ addr += subpgsize;
+
+ set_random_data(writebuf, subpgsize);
+ err = mtd->write(mtd, addr, subpgsize, &written, writebuf);
+ if (unlikely(err || written != subpgsize)) {
+ printk(PRINT_PREF "error: write failed at %#llx\n",
+ (long long)addr);
+ if (written != subpgsize) {
+ printk(PRINT_PREF " write size: %#x\n", subpgsize);
+ printk(PRINT_PREF " written: %#zx\n", written);
+ }
+ return err ? err : -1;
+ }
+
+ return err;
+}
+
+static int write_eraseblock2(int ebnum)
+{
+ size_t written = 0;
+ int err = 0, k;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ for (k = 1; k < 33; ++k) {
+ if (addr + (subpgsize * k) > (ebnum + 1) * mtd->erasesize)
+ break;
+ set_random_data(writebuf, subpgsize * k);
+ err = mtd->write(mtd, addr, subpgsize * k, &written, writebuf);
+ if (unlikely(err || written != subpgsize * k)) {
+ printk(PRINT_PREF "error: write failed at %#llx\n",
+ (long long)addr);
+ if (written != subpgsize) {
+ printk(PRINT_PREF " write size: %#x\n",
+ subpgsize * k);
+ printk(PRINT_PREF " written: %#08zx\n",
+ written);
+ }
+ return err ? err : -1;
+ }
+ addr += subpgsize * k;
+ }
+
+ return err;
+}
+
+static void print_subpage(unsigned char *p)
+{
+ int i, j;
+
+ for (i = 0; i < subpgsize; ) {
+ for (j = 0; i < subpgsize && j < 32; ++i, ++j)
+ printk("%02x", *p++);
+ printk("\n");
+ }
+}
+
+static int verify_eraseblock(int ebnum)
+{
+ size_t read = 0;
+ int err = 0;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ set_random_data(writebuf, subpgsize);
+ clear_data(readbuf, subpgsize);
+ read = 0;
+ err = mtd->read(mtd, addr, subpgsize, &read, readbuf);
+ if (unlikely(err || read != subpgsize)) {
+ if (err == -EUCLEAN && read == subpgsize) {
+ printk(PRINT_PREF "ECC correction at %#llx\n",
+ (long long)addr);
+ err = 0;
+ } else {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ (long long)addr);
+ return err ? err : -1;
+ }
+ }
+ if (unlikely(memcmp(readbuf, writebuf, subpgsize))) {
+ printk(PRINT_PREF "error: verify failed at %#llx\n",
+ (long long)addr);
+ printk(PRINT_PREF "------------- written----------------\n");
+ print_subpage(writebuf);
+ printk(PRINT_PREF "------------- read ------------------\n");
+ print_subpage(readbuf);
+ printk(PRINT_PREF "-------------------------------------\n");
+ errcnt += 1;
+ }
+
+ addr += subpgsize;
+
+ set_random_data(writebuf, subpgsize);
+ clear_data(readbuf, subpgsize);
+ read = 0;
+ err = mtd->read(mtd, addr, subpgsize, &read, readbuf);
+ if (unlikely(err || read != subpgsize)) {
+ if (err == -EUCLEAN && read == subpgsize) {
+ printk(PRINT_PREF "ECC correction at %#llx\n",
+ (long long)addr);
+ err = 0;
+ } else {
+ printk(PRINT_PREF "error: read failed at %#llx\n",
+ (long long)addr);
+ return err ? err : -1;
+ }
+ }
+ if (unlikely(memcmp(readbuf, writebuf, subpgsize))) {
+ printk(PRINT_PREF "error: verify failed at %#llx\n",
+ (long long)addr);
+ printk(PRINT_PREF "------------- written----------------\n");
+ print_subpage(writebuf);
+ printk(PRINT_PREF "------------- read ------------------\n");
+ print_subpage(readbuf);
+ printk(PRINT_PREF "-------------------------------------\n");
+ errcnt += 1;
+ }
+
+ return err;
+}
+
+static int verify_eraseblock2(int ebnum)
+{
+ size_t read = 0;
+ int err = 0, k;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ for (k = 1; k < 33; ++k) {
+ if (addr + (subpgsize * k) > (ebnum + 1) * mtd->erasesize)
+ break;
+ set_random_data(writebuf, subpgsize * k);
+ clear_data(readbuf, subpgsize * k);
+ read = 0;
+ err = mtd->read(mtd, addr, subpgsize * k, &read, readbuf);
+ if (unlikely(err || read != subpgsize * k)) {
+ if (err == -EUCLEAN && read == subpgsize * k) {
+ printk(PRINT_PREF "ECC correction at %#llx\n",
+ (long long)addr);
+ err = 0;
+ } else {
+ printk(PRINT_PREF "error: read failed at "
+ "%#llx\n", (long long)addr);
+ return err ? err : -1;
+ }
+ }
+ if (unlikely(memcmp(readbuf, writebuf, subpgsize * k))) {
+ printk(PRINT_PREF "error: verify failed at %#llx\n",
+ (long long)addr);
+ errcnt += 1;
+ }
+ addr += subpgsize * k;
+ }
+
+ return err;
+}
+
+static int verify_eraseblock_ff(int ebnum)
+{
+ uint32_t j;
+ size_t read = 0;
+ int err = 0;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ memset(writebuf, 0xff, subpgsize);
+ for (j = 0; j < mtd->erasesize / subpgsize; ++j) {
+ clear_data(readbuf, subpgsize);
+ read = 0;
+ err = mtd->read(mtd, addr, subpgsize, &read, readbuf);
+ if (unlikely(err || read != subpgsize)) {
+ if (err == -EUCLEAN && read == subpgsize) {
+ printk(PRINT_PREF "ECC correction at %#llx\n",
+ (long long)addr);
+ err = 0;
+ } else {
+ printk(PRINT_PREF "error: read failed at "
+ "%#llx\n", (long long)addr);
+ return err ? err : -1;
+ }
+ }
+ if (unlikely(memcmp(readbuf, writebuf, subpgsize))) {
+ printk(PRINT_PREF "error: verify 0xff failed at "
+ "%#llx\n", (long long)addr);
+ errcnt += 1;
+ }
+ addr += subpgsize;
+ }
+
+ return err;
+}
+
+static int verify_all_eraseblocks_ff(void)
+{
+ int err;
+ unsigned int i;
+
+ printk(PRINT_PREF "verifying all eraseblocks for 0xff\n");
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = verify_eraseblock_ff(i);
+ if (err)
+ return err;
+ if (i % 256 == 0)
+ printk(PRINT_PREF "verified up to eraseblock %u\n", i);
+ cond_resched();
+ }
+ printk(PRINT_PREF "verified %u eraseblocks\n", i);
+ return 0;
+}
+
+static int is_block_bad(int ebnum)
+{
+ loff_t addr = ebnum * mtd->erasesize;
+ int ret;
+
+ ret = mtd->block_isbad(mtd, addr);
+ if (ret)
+ printk(PRINT_PREF "block %d is bad\n", ebnum);
+ return ret;
+}
+
+static int scan_for_bad_eraseblocks(void)
+{
+ int i, bad = 0;
+
+ bbt = kmalloc(ebcnt, GFP_KERNEL);
+ if (!bbt) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ return -ENOMEM;
+ }
+ memset(bbt, 0 , ebcnt);
+
+ printk(PRINT_PREF "scanning for bad eraseblocks\n");
+ for (i = 0; i < ebcnt; ++i) {
+ bbt[i] = is_block_bad(i) ? 1 : 0;
+ if (bbt[i])
+ bad += 1;
+ cond_resched();
+ }
+ printk(PRINT_PREF "scanned %d eraseblocks, %d are bad\n", i, bad);
+ return 0;
+}
+
+static int __init mtd_subpagetest_init(void)
+{
+ int err = 0;
+ uint32_t i;
+ uint64_t tmp;
+
+ printk(KERN_INFO "\n");
+ printk(KERN_INFO "=================================================\n");
+ printk(PRINT_PREF "MTD device: %d\n", dev);
+
+ mtd = get_mtd_device(NULL, dev);
+ if (IS_ERR(mtd)) {
+ err = PTR_ERR(mtd);
+ printk(PRINT_PREF "error: cannot get MTD device\n");
+ return err;
+ }
+
+ if (mtd->type != MTD_NANDFLASH) {
+ printk(PRINT_PREF "this test requires NAND flash\n");
+ goto out;
+ }
+
+ subpgsize = mtd->writesize >> mtd->subpage_sft;
+ printk(PRINT_PREF "MTD device size %llu, eraseblock size %u, "
+ "page size %u, subpage size %u, count of eraseblocks %u, "
+ "pages per eraseblock %u, OOB size %u\n",
+ (unsigned long long)mtd->size, mtd->erasesize,
+ mtd->writesize, subpgsize, ebcnt, pgcnt, mtd->oobsize);
+
+ err = -ENOMEM;
+ bufsize = subpgsize * 32;
+ writebuf = kmalloc(bufsize, GFP_KERNEL);
+ if (!writebuf) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ goto out;
+ }
+ readbuf = kmalloc(bufsize, GFP_KERNEL);
+ if (!readbuf) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ goto out;
+ }
+
+ tmp = mtd->size;
+ do_div(tmp, mtd->erasesize);
+ ebcnt = tmp;
+ pgcnt = mtd->erasesize / mtd->writesize;
+
+ err = scan_for_bad_eraseblocks();
+ if (err)
+ goto out;
+
+ err = erase_whole_device();
+ if (err)
+ goto out;
+
+ printk(PRINT_PREF "writing whole device\n");
+ simple_srand(1);
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = write_eraseblock(i);
+ if (unlikely(err))
+ goto out;
+ if (i % 256 == 0)
+ printk(PRINT_PREF "written up to eraseblock %u\n", i);
+ cond_resched();
+ }
+ printk(PRINT_PREF "written %u eraseblocks\n", i);
+
+ simple_srand(1);
+ printk(PRINT_PREF "verifying all eraseblocks\n");
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = verify_eraseblock(i);
+ if (unlikely(err))
+ goto out;
+ if (i % 256 == 0)
+ printk(PRINT_PREF "verified up to eraseblock %u\n", i);
+ cond_resched();
+ }
+ printk(PRINT_PREF "verified %u eraseblocks\n", i);
+
+ err = erase_whole_device();
+ if (err)
+ goto out;
+
+ err = verify_all_eraseblocks_ff();
+ if (err)
+ goto out;
+
+ /* Write all eraseblocks */
+ simple_srand(3);
+ printk(PRINT_PREF "writing whole device\n");
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = write_eraseblock2(i);
+ if (unlikely(err))
+ goto out;
+ if (i % 256 == 0)
+ printk(PRINT_PREF "written up to eraseblock %u\n", i);
+ cond_resched();
+ }
+ printk(PRINT_PREF "written %u eraseblocks\n", i);
+
+ /* Check all eraseblocks */
+ simple_srand(3);
+ printk(PRINT_PREF "verifying all eraseblocks\n");
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = verify_eraseblock2(i);
+ if (unlikely(err))
+ goto out;
+ if (i % 256 == 0)
+ printk(PRINT_PREF "verified up to eraseblock %u\n", i);
+ cond_resched();
+ }
+ printk(PRINT_PREF "verified %u eraseblocks\n", i);
+
+ err = erase_whole_device();
+ if (err)
+ goto out;
+
+ err = verify_all_eraseblocks_ff();
+ if (err)
+ goto out;
+
+ printk(PRINT_PREF "finished with %d errors\n", errcnt);
+
+out:
+ kfree(bbt);
+ kfree(readbuf);
+ kfree(writebuf);
+ put_mtd_device(mtd);
+ if (err)
+ printk(PRINT_PREF "error %d occurred\n", err);
+ printk(KERN_INFO "=================================================\n");
+ return err;
+}
+module_init(mtd_subpagetest_init);
+
+static void __exit mtd_subpagetest_exit(void)
+{
+ return;
+}
+module_exit(mtd_subpagetest_exit);
+
+MODULE_DESCRIPTION("Subpage test module");
+MODULE_AUTHOR("Adrian Hunter");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Copyright (C) 2006-2008 Artem Bityutskiy
+ * Copyright (C) 2006-2008 Jarkko Lavinen
+ * Copyright (C) 2006-2008 Adrian Hunter
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; see the file COPYING. If not, write to the Free Software
+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Authors: Artem Bityutskiy, Jarkko Lavinen, Adria Hunter
+ *
+ * WARNING: this test program may kill your flash and your device. Do not
+ * use it unless you know what you do. Authors are not responsible for any
+ * damage caused by this program.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/err.h>
+#include <linux/mtd/mtd.h>
+#include <linux/sched.h>
+
+#define PRINT_PREF KERN_INFO "mtd_torturetest: "
+#define RETRIES 3
+
+static int eb = 8;
+module_param(eb, int, S_IRUGO);
+MODULE_PARM_DESC(eb, "eraseblock number within the selected MTD device");
+
+static int ebcnt = 32;
+module_param(ebcnt, int, S_IRUGO);
+MODULE_PARM_DESC(ebcnt, "number of consecutive eraseblocks to torture");
+
+static int pgcnt;
+module_param(pgcnt, int, S_IRUGO);
+MODULE_PARM_DESC(pgcnt, "number of pages per eraseblock to torture (0 => all)");
+
+static int dev;
+module_param(dev, int, S_IRUGO);
+MODULE_PARM_DESC(dev, "MTD device number to use");
+
+static int gran = 512;
+module_param(gran, int, S_IRUGO);
+MODULE_PARM_DESC(gran, "how often the status information should be printed");
+
+static int check = 1;
+module_param(check, int, S_IRUGO);
+MODULE_PARM_DESC(check, "if the written data should be checked");
+
+static unsigned int cycles_count;
+module_param(cycles_count, uint, S_IRUGO);
+MODULE_PARM_DESC(cycles_count, "how many erase cycles to do "
+ "(infinite by default)");
+
+static struct mtd_info *mtd;
+
+/* This buffer contains 0x555555...0xAAAAAA... pattern */
+static unsigned char *patt_5A5;
+/* This buffer contains 0xAAAAAA...0x555555... pattern */
+static unsigned char *patt_A5A;
+/* This buffer contains all 0xFF bytes */
+static unsigned char *patt_FF;
+/* This a temporary buffer is use when checking data */
+static unsigned char *check_buf;
+/* How many erase cycles were done */
+static unsigned int erase_cycles;
+
+static int pgsize;
+static struct timeval start, finish;
+
+static void report_corrupt(unsigned char *read, unsigned char *written);
+
+static inline void start_timing(void)
+{
+ do_gettimeofday(&start);
+}
+
+static inline void stop_timing(void)
+{
+ do_gettimeofday(&finish);
+}
+
+/*
+ * Erase eraseblock number @ebnum.
+ */
+static inline int erase_eraseblock(int ebnum)
+{
+ int err;
+ struct erase_info ei;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ memset(&ei, 0, sizeof(struct erase_info));
+ ei.mtd = mtd;
+ ei.addr = addr;
+ ei.len = mtd->erasesize;
+
+ err = mtd->erase(mtd, &ei);
+ if (err) {
+ printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum);
+ return err;
+ }
+
+ if (ei.state == MTD_ERASE_FAILED) {
+ printk(PRINT_PREF "some erase error occurred at EB %d\n",
+ ebnum);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/*
+ * Check that the contents of eraseblock number @enbum is equivalent to the
+ * @buf buffer.
+ */
+static inline int check_eraseblock(int ebnum, unsigned char *buf)
+{
+ int err, retries = 0;
+ size_t read = 0;
+ loff_t addr = ebnum * mtd->erasesize;
+ size_t len = mtd->erasesize;
+
+ if (pgcnt) {
+ addr = (ebnum + 1) * mtd->erasesize - pgcnt * pgsize;
+ len = pgcnt * pgsize;
+ }
+
+retry:
+ err = mtd->read(mtd, addr, len, &read, check_buf);
+ if (err == -EUCLEAN)
+ printk(PRINT_PREF "single bit flip occurred at EB %d "
+ "MTD reported that it was fixed.\n", ebnum);
+ else if (err) {
+ printk(PRINT_PREF "error %d while reading EB %d, "
+ "read %zd\n", err, ebnum, read);
+ return err;
+ }
+
+ if (read != len) {
+ printk(PRINT_PREF "failed to read %zd bytes from EB %d, "
+ "read only %zd, but no error reported\n",
+ len, ebnum, read);
+ return -EIO;
+ }
+
+ if (memcmp(buf, check_buf, len)) {
+ printk(PRINT_PREF "read wrong data from EB %d\n", ebnum);
+ report_corrupt(check_buf, buf);
+
+ if (retries++ < RETRIES) {
+ /* Try read again */
+ yield();
+ printk(PRINT_PREF "re-try reading data from EB %d\n",
+ ebnum);
+ goto retry;
+ } else {
+ printk(PRINT_PREF "retried %d times, still errors, "
+ "give-up\n", RETRIES);
+ return -EINVAL;
+ }
+ }
+
+ if (retries != 0)
+ printk(PRINT_PREF "only attempt number %d was OK (!!!)\n",
+ retries);
+
+ return 0;
+}
+
+static inline int write_pattern(int ebnum, void *buf)
+{
+ int err;
+ size_t written = 0;
+ loff_t addr = ebnum * mtd->erasesize;
+ size_t len = mtd->erasesize;
+
+ if (pgcnt) {
+ addr = (ebnum + 1) * mtd->erasesize - pgcnt * pgsize;
+ len = pgcnt * pgsize;
+ }
+ err = mtd->write(mtd, addr, len, &written, buf);
+ if (err) {
+ printk(PRINT_PREF "error %d while writing EB %d, written %zd"
+ " bytes\n", err, ebnum, written);
+ return err;
+ }
+ if (written != len) {
+ printk(PRINT_PREF "written only %zd bytes of %zd, but no error"
+ " reported\n", written, len);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int __init tort_init(void)
+{
+ int err = 0, i, infinite = !cycles_count;
+ int bad_ebs[ebcnt];
+
+ printk(KERN_INFO "\n");
+ printk(KERN_INFO "=================================================\n");
+ printk(PRINT_PREF "Warning: this program is trying to wear out your "
+ "flash, stop it if this is not wanted.\n");
+ printk(PRINT_PREF "MTD device: %d\n", dev);
+ printk(PRINT_PREF "torture %d eraseblocks (%d-%d) of mtd%d\n",
+ ebcnt, eb, eb + ebcnt - 1, dev);
+ if (pgcnt)
+ printk(PRINT_PREF "torturing just %d pages per eraseblock\n",
+ pgcnt);
+ printk(PRINT_PREF "write verify %s\n", check ? "enabled" : "disabled");
+
+ mtd = get_mtd_device(NULL, dev);
+ if (IS_ERR(mtd)) {
+ err = PTR_ERR(mtd);
+ printk(PRINT_PREF "error: cannot get MTD device\n");
+ return err;
+ }
+
+ if (mtd->writesize == 1) {
+ printk(PRINT_PREF "not NAND flash, assume page size is 512 "
+ "bytes.\n");
+ pgsize = 512;
+ } else
+ pgsize = mtd->writesize;
+
+ if (pgcnt && (pgcnt > mtd->erasesize / pgsize || pgcnt < 0)) {
+ printk(PRINT_PREF "error: invalid pgcnt value %d\n", pgcnt);
+ goto out_mtd;
+ }
+
+ err = -ENOMEM;
+ patt_5A5 = kmalloc(mtd->erasesize, GFP_KERNEL);
+ if (!patt_5A5) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ goto out_mtd;
+ }
+
+ patt_A5A = kmalloc(mtd->erasesize, GFP_KERNEL);
+ if (!patt_A5A) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ goto out_patt_5A5;
+ }
+
+ patt_FF = kmalloc(mtd->erasesize, GFP_KERNEL);
+ if (!patt_FF) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ goto out_patt_A5A;
+ }
+
+ check_buf = kmalloc(mtd->erasesize, GFP_KERNEL);
+ if (!check_buf) {
+ printk(PRINT_PREF "error: cannot allocate memory\n");
+ goto out_patt_FF;
+ }
+
+ err = 0;
+
+ /* Initialize patterns */
+ memset(patt_FF, 0xFF, mtd->erasesize);
+ for (i = 0; i < mtd->erasesize / pgsize; i++) {
+ if (!(i & 1)) {
+ memset(patt_5A5 + i * pgsize, 0x55, pgsize);
+ memset(patt_A5A + i * pgsize, 0xAA, pgsize);
+ } else {
+ memset(patt_5A5 + i * pgsize, 0xAA, pgsize);
+ memset(patt_A5A + i * pgsize, 0x55, pgsize);
+ }
+ }
+
+ /*
+ * Check if there is a bad eraseblock among those we are going to test.
+ */
+ memset(&bad_ebs[0], 0, sizeof(int) * ebcnt);
+ if (mtd->block_isbad) {
+ for (i = eb; i < eb + ebcnt; i++) {
+ err = mtd->block_isbad(mtd,
+ (loff_t)i * mtd->erasesize);
+
+ if (err < 0) {
+ printk(PRINT_PREF "block_isbad() returned %d "
+ "for EB %d\n", err, i);
+ goto out;
+ }
+
+ if (err) {
+ printk("EB %d is bad. Skip it.\n", i);
+ bad_ebs[i - eb] = 1;
+ }
+ }
+ }
+
+ start_timing();
+ while (1) {
+ int i;
+ void *patt;
+
+ /* Erase all eraseblocks */
+ for (i = eb; i < eb + ebcnt; i++) {
+ if (bad_ebs[i - eb])
+ continue;
+ err = erase_eraseblock(i);
+ if (err)
+ goto out;
+ cond_resched();
+ }
+
+ /* Check if the eraseblocks contain only 0xFF bytes */
+ if (check) {
+ for (i = eb; i < eb + ebcnt; i++) {
+ if (bad_ebs[i - eb])
+ continue;
+ err = check_eraseblock(i, patt_FF);
+ if (err) {
+ printk(PRINT_PREF "verify failed"
+ " for 0xFF... pattern\n");
+ goto out;
+ }
+ cond_resched();
+ }
+ }
+
+ /* Write the pattern */
+ for (i = eb; i < eb + ebcnt; i++) {
+ if (bad_ebs[i - eb])
+ continue;
+ if ((eb + erase_cycles) & 1)
+ patt = patt_5A5;
+ else
+ patt = patt_A5A;
+ err = write_pattern(i, patt);
+ if (err)
+ goto out;
+ cond_resched();
+ }
+
+ /* Verify what we wrote */
+ if (check) {
+ for (i = eb; i < eb + ebcnt; i++) {
+ if (bad_ebs[i - eb])
+ continue;
+ if ((eb + erase_cycles) & 1)
+ patt = patt_5A5;
+ else
+ patt = patt_A5A;
+ err = check_eraseblock(i, patt);
+ if (err) {
+ printk(PRINT_PREF "verify failed for %s"
+ " pattern\n",
+ ((eb + erase_cycles) & 1) ?
+ "0x55AA55..." : "0xAA55AA...");
+ goto out;
+ }
+ cond_resched();
+ }
+ }
+
+ erase_cycles += 1;
+
+ if (erase_cycles % gran == 0) {
+ long ms;
+
+ stop_timing();
+ ms = (finish.tv_sec - start.tv_sec) * 1000 +
+ (finish.tv_usec - start.tv_usec) / 1000;
+ printk(PRINT_PREF "%08u erase cycles done, took %lu "
+ "milliseconds (%lu seconds)\n",
+ erase_cycles, ms, ms / 1000);
+ start_timing();
+ }
+
+ if (!infinite && --cycles_count == 0)
+ break;
+ }
+out:
+
+ printk(PRINT_PREF "finished after %u erase cycles\n",
+ erase_cycles);
+ kfree(check_buf);
+out_patt_FF:
+ kfree(patt_FF);
+out_patt_A5A:
+ kfree(patt_A5A);
+out_patt_5A5:
+ kfree(patt_5A5);
+out_mtd:
+ put_mtd_device(mtd);
+ if (err)
+ printk(PRINT_PREF "error %d occurred during torturing\n", err);
+ printk(KERN_INFO "=================================================\n");
+ return err;
+}
+module_init(tort_init);
+
+static void __exit tort_exit(void)
+{
+ return;
+}
+module_exit(tort_exit);
+
+static int countdiffs(unsigned char *buf, unsigned char *check_buf,
+ unsigned offset, unsigned len, unsigned *bytesp,
+ unsigned *bitsp);
+static void print_bufs(unsigned char *read, unsigned char *written, int start,
+ int len);
+
+/*
+ * Report the detailed information about how the read EB differs from what was
+ * written.
+ */
+static void report_corrupt(unsigned char *read, unsigned char *written)
+{
+ int i;
+ int bytes, bits, pages, first;
+ int offset, len;
+ size_t check_len = mtd->erasesize;
+
+ if (pgcnt)
+ check_len = pgcnt * pgsize;
+
+ bytes = bits = pages = 0;
+ for (i = 0; i < check_len; i += pgsize)
+ if (countdiffs(written, read, i, pgsize, &bytes,
+ &bits) >= 0)
+ pages++;
+
+ printk(PRINT_PREF "verify fails on %d pages, %d bytes/%d bits\n",
+ pages, bytes, bits);
+ printk(PRINT_PREF "The following is a list of all differences between"
+ " what was read from flash and what was expected\n");
+
+ for (i = 0; i < check_len; i += pgsize) {
+ cond_resched();
+ bytes = bits = 0;
+ first = countdiffs(written, read, i, pgsize, &bytes,
+ &bits);
+ if (first < 0)
+ continue;
+
+ printk("-------------------------------------------------------"
+ "----------------------------------\n");
+
+ printk(PRINT_PREF "Page %zd has %d bytes/%d bits failing verify,"
+ " starting at offset 0x%x\n",
+ (mtd->erasesize - check_len + i) / pgsize,
+ bytes, bits, first);
+
+ offset = first & ~0x7;
+ len = ((first + bytes) | 0x7) + 1 - offset;
+
+ print_bufs(read, written, offset, len);
+ }
+}
+
+static void print_bufs(unsigned char *read, unsigned char *written, int start,
+ int len)
+{
+ int i = 0, j1, j2;
+ char *diff;
+
+ printk("Offset Read Written\n");
+ while (i < len) {
+ printk("0x%08x: ", start + i);
+ diff = " ";
+ for (j1 = 0; j1 < 8 && i + j1 < len; j1++) {
+ printk(" %02x", read[start + i + j1]);
+ if (read[start + i + j1] != written[start + i + j1])
+ diff = "***";
+ }
+
+ while (j1 < 8) {
+ printk(" ");
+ j1 += 1;
+ }
+
+ printk(" %s ", diff);
+
+ for (j2 = 0; j2 < 8 && i + j2 < len; j2++)
+ printk(" %02x", written[start + i + j2]);
+ printk("\n");
+ i += 8;
+ }
+}
+
+/*
+ * Count the number of differing bytes and bits and return the first differing
+ * offset.
+ */
+static int countdiffs(unsigned char *buf, unsigned char *check_buf,
+ unsigned offset, unsigned len, unsigned *bytesp,
+ unsigned *bitsp)
+{
+ unsigned i, bit;
+ int first = -1;
+
+ for (i = offset; i < offset + len; i++)
+ if (buf[i] != check_buf[i]) {
+ first = i;
+ break;
+ }
+
+ while (i < offset + len) {
+ if (buf[i] != check_buf[i]) {
+ (*bytesp)++;
+ bit = 1;
+ while (bit < 256) {
+ if ((buf[i] & bit) != (check_buf[i] & bit))
+ (*bitsp)++;
+ bit <<= 1;
+ }
+ }
+ i++;
+ }
+
+ return first;
+}
+
+MODULE_DESCRIPTION("Eraseblock torturing module");
+MODULE_AUTHOR("Artem Bityutskiy, Jarkko Lavinen, Adrian Hunter");
+MODULE_LICENSE("GPL");
*/
ubi->peb_size = ubi->mtd->erasesize;
- ubi->peb_count = ubi->mtd->size / ubi->mtd->erasesize;
+ ubi->peb_count = mtd_div_by_eb(ubi->mtd->size, ubi->mtd);
ubi->flash_size = ubi->mtd->size;
if (ubi->mtd->block_isbad && ubi->mtd->block_markbad)
struct ubi_volume *vol;
struct ubi_device *ubi;
- dbg_gen("erase %u bytes at offset %u", instr->len, instr->addr);
+ dbg_gen("erase %llu bytes at offset %llu", (unsigned long long)instr->len,
+ (unsigned long long)instr->addr);
if (instr->addr < 0 || instr->addr > mtd->size - mtd->erasesize)
return -EINVAL;
if (instr->len < 0 || instr->addr + instr->len > mtd->size)
return -EINVAL;
- if (instr->addr % mtd->writesize || instr->len % mtd->writesize)
+ if (mtd_mod_by_ws(instr->addr, mtd) || mtd_mod_by_ws(instr->len, mtd))
return -EINVAL;
- lnum = instr->addr / mtd->erasesize;
- count = instr->len / mtd->erasesize;
+ lnum = mtd_div_by_eb(instr->addr, mtd);
+ count = mtd_div_by_eb(instr->len, mtd);
vol = container_of(mtd, struct ubi_volume, gluebi_mtd);
ubi = vol->ubi;
out_err:
instr->state = MTD_ERASE_FAILED;
- instr->fail_addr = lnum * mtd->erasesize;
+ instr->fail_addr = (long long)lnum * mtd->erasesize;
return err;
}
* bytes.
*/
if (vol->vol_type == UBI_DYNAMIC_VOLUME)
- mtd->size = vol->usable_leb_size * vol->reserved_pebs;
+ mtd->size = (long long)vol->usable_leb_size * vol->reserved_pebs;
else
mtd->size = vol->used_bytes;
return -ENFILE;
}
- dbg_gen("added mtd%d (\"%s\"), size %u, EB size %u",
- mtd->index, mtd->name, mtd->size, mtd->erasesize);
+ dbg_gen("added mtd%d (\"%s\"), size %llu, EB size %u",
+ mtd->index, mtd->name, (unsigned long long)mtd->size, mtd->erasesize);
return 0;
}
/**
* @file buffer_sync.c
*
- * @remark Copyright 2002 OProfile authors
+ * @remark Copyright 2002-2009 OProfile authors
* @remark Read the file COPYING
*
* @author John Levon <levon@movementarian.org>
* @author Barry Kasindorf
+ * @author Robert Richter <robert.richter@amd.com>
*
* This is the core of the buffer management. Each
* CPU buffer is processed and entered into the
add_event_entry(TRACE_BEGIN_CODE);
}
-#ifdef CONFIG_OPROFILE_IBS
-
-#define IBS_FETCH_CODE_SIZE 2
-#define IBS_OP_CODE_SIZE 5
-
-/*
- * Add IBS fetch and op entries to event buffer
- */
-static void add_ibs_begin(int cpu, int code, struct mm_struct *mm)
+static void add_data(struct op_entry *entry, struct mm_struct *mm)
{
- unsigned long rip;
- int i, count;
- unsigned long ibs_cookie = 0;
+ unsigned long code, pc, val;
+ unsigned long cookie;
off_t offset;
- struct op_sample *sample;
-
- sample = cpu_buffer_read_entry(cpu);
- if (!sample)
- goto Error;
- rip = sample->eip;
-#ifdef __LP64__
- rip += sample->event << 32;
-#endif
+ if (!op_cpu_buffer_get_data(entry, &code))
+ return;
+ if (!op_cpu_buffer_get_data(entry, &pc))
+ return;
+ if (!op_cpu_buffer_get_size(entry))
+ return;
if (mm) {
- ibs_cookie = lookup_dcookie(mm, rip, &offset);
+ cookie = lookup_dcookie(mm, pc, &offset);
- if (ibs_cookie == NO_COOKIE)
- offset = rip;
- if (ibs_cookie == INVALID_COOKIE) {
+ if (cookie == NO_COOKIE)
+ offset = pc;
+ if (cookie == INVALID_COOKIE) {
atomic_inc(&oprofile_stats.sample_lost_no_mapping);
- offset = rip;
+ offset = pc;
}
- if (ibs_cookie != last_cookie) {
- add_cookie_switch(ibs_cookie);
- last_cookie = ibs_cookie;
+ if (cookie != last_cookie) {
+ add_cookie_switch(cookie);
+ last_cookie = cookie;
}
} else
- offset = rip;
+ offset = pc;
add_event_entry(ESCAPE_CODE);
add_event_entry(code);
add_event_entry(offset); /* Offset from Dcookie */
- /* we send the Dcookie offset, but send the raw Linear Add also*/
- add_event_entry(sample->eip);
- add_event_entry(sample->event);
-
- if (code == IBS_FETCH_CODE)
- count = IBS_FETCH_CODE_SIZE; /*IBS FETCH is 2 int64s*/
- else
- count = IBS_OP_CODE_SIZE; /*IBS OP is 5 int64s*/
-
- for (i = 0; i < count; i++) {
- sample = cpu_buffer_read_entry(cpu);
- if (!sample)
- goto Error;
- add_event_entry(sample->eip);
- add_event_entry(sample->event);
- }
-
- return;
-
-Error:
- return;
+ while (op_cpu_buffer_get_data(entry, &val))
+ add_event_entry(val);
}
-#endif
-
-static void add_sample_entry(unsigned long offset, unsigned long event)
+static inline void add_sample_entry(unsigned long offset, unsigned long event)
{
add_event_entry(offset);
add_event_entry(event);
}
-static int add_us_sample(struct mm_struct *mm, struct op_sample *s)
+/*
+ * Add a sample to the global event buffer. If possible the
+ * sample is converted into a persistent dentry/offset pair
+ * for later lookup from userspace. Return 0 on failure.
+ */
+static int
+add_sample(struct mm_struct *mm, struct op_sample *s, int in_kernel)
{
unsigned long cookie;
off_t offset;
+ if (in_kernel) {
+ add_sample_entry(s->eip, s->event);
+ return 1;
+ }
+
+ /* add userspace sample */
+
+ if (!mm) {
+ atomic_inc(&oprofile_stats.sample_lost_no_mm);
+ return 0;
+ }
+
cookie = lookup_dcookie(mm, s->eip, &offset);
if (cookie == INVALID_COOKIE) {
}
-/* Add a sample to the global event buffer. If possible the
- * sample is converted into a persistent dentry/offset pair
- * for later lookup from userspace.
- */
-static int
-add_sample(struct mm_struct *mm, struct op_sample *s, int in_kernel)
-{
- if (in_kernel) {
- add_sample_entry(s->eip, s->event);
- return 1;
- } else if (mm) {
- return add_us_sample(mm, s);
- } else {
- atomic_inc(&oprofile_stats.sample_lost_no_mm);
- }
- return 0;
-}
-
-
static void release_mm(struct mm_struct *mm)
{
if (!mm)
{
struct mm_struct *mm = NULL;
struct mm_struct *oldmm;
+ unsigned long val;
struct task_struct *new;
unsigned long cookie = 0;
int in_kernel = 1;
sync_buffer_state state = sb_buffer_start;
unsigned int i;
unsigned long available;
+ unsigned long flags;
+ struct op_entry entry;
+ struct op_sample *sample;
mutex_lock(&buffer_mutex);
add_cpu_switch(cpu);
- cpu_buffer_reset(cpu);
- available = cpu_buffer_entries(cpu);
+ op_cpu_buffer_reset(cpu);
+ available = op_cpu_buffer_entries(cpu);
for (i = 0; i < available; ++i) {
- struct op_sample *s = cpu_buffer_read_entry(cpu);
- if (!s)
+ sample = op_cpu_buffer_read_entry(&entry, cpu);
+ if (!sample)
break;
- if (is_code(s->eip)) {
- switch (s->event) {
- case 0:
- case CPU_IS_KERNEL:
+ if (is_code(sample->eip)) {
+ flags = sample->event;
+ if (flags & TRACE_BEGIN) {
+ state = sb_bt_start;
+ add_trace_begin();
+ }
+ if (flags & KERNEL_CTX_SWITCH) {
/* kernel/userspace switch */
- in_kernel = s->event;
+ in_kernel = flags & IS_KERNEL;
if (state == sb_buffer_start)
state = sb_sample_start;
- add_kernel_ctx_switch(s->event);
- break;
- case CPU_TRACE_BEGIN:
- state = sb_bt_start;
- add_trace_begin();
- break;
-#ifdef CONFIG_OPROFILE_IBS
- case IBS_FETCH_BEGIN:
- state = sb_bt_start;
- add_ibs_begin(cpu, IBS_FETCH_CODE, mm);
- break;
- case IBS_OP_BEGIN:
- state = sb_bt_start;
- add_ibs_begin(cpu, IBS_OP_CODE, mm);
- break;
-#endif
- default:
+ add_kernel_ctx_switch(flags & IS_KERNEL);
+ }
+ if (flags & USER_CTX_SWITCH
+ && op_cpu_buffer_get_data(&entry, &val)) {
/* userspace context switch */
+ new = (struct task_struct *)val;
oldmm = mm;
- new = (struct task_struct *)s->event;
release_mm(oldmm);
mm = take_tasks_mm(new);
if (mm != oldmm)
cookie = get_exec_dcookie(mm);
add_user_ctx_switch(new, cookie);
- break;
- }
- } else if (state >= sb_bt_start &&
- !add_sample(mm, s, in_kernel)) {
- if (state == sb_bt_start) {
- state = sb_bt_ignore;
- atomic_inc(&oprofile_stats.bt_lost_no_mapping);
}
+ if (op_cpu_buffer_get_size(&entry))
+ add_data(&entry, mm);
+ continue;
+ }
+
+ if (state < sb_bt_start)
+ /* ignore sample */
+ continue;
+
+ if (add_sample(mm, sample, in_kernel))
+ continue;
+
+ /* ignore backtraces if failed to add a sample */
+ if (state == sb_bt_start) {
+ state = sb_bt_ignore;
+ atomic_inc(&oprofile_stats.bt_lost_no_mapping);
}
}
release_mm(mm);
/**
* @file cpu_buffer.c
*
- * @remark Copyright 2002 OProfile authors
+ * @remark Copyright 2002-2009 OProfile authors
* @remark Read the file COPYING
*
* @author John Levon <levon@movementarian.org>
* @author Barry Kasindorf <barry.kasindorf@amd.com>
+ * @author Robert Richter <robert.richter@amd.com>
*
* Each CPU has a local buffer that stores PC value/event
* pairs. We also log context switches when we notice them.
* can be changed to a single buffer solution when the ring buffer
* access is implemented as non-locking atomic code.
*/
-struct ring_buffer *op_ring_buffer_read;
-struct ring_buffer *op_ring_buffer_write;
+static struct ring_buffer *op_ring_buffer_read;
+static struct ring_buffer *op_ring_buffer_write;
DEFINE_PER_CPU(struct oprofile_cpu_buffer, cpu_buffer);
static void wq_sync_buffer(struct work_struct *work);
#define DEFAULT_TIMER_EXPIRE (HZ / 10)
static int work_enabled;
-void free_cpu_buffers(void)
-{
- if (op_ring_buffer_read)
- ring_buffer_free(op_ring_buffer_read);
- op_ring_buffer_read = NULL;
- if (op_ring_buffer_write)
- ring_buffer_free(op_ring_buffer_write);
- op_ring_buffer_write = NULL;
-}
-
unsigned long oprofile_get_cpu_buffer_size(void)
{
- return fs_cpu_buffer_size;
+ return oprofile_cpu_buffer_size;
}
void oprofile_cpu_buffer_inc_smpl_lost(void)
cpu_buf->sample_lost_overflow++;
}
+void free_cpu_buffers(void)
+{
+ if (op_ring_buffer_read)
+ ring_buffer_free(op_ring_buffer_read);
+ op_ring_buffer_read = NULL;
+ if (op_ring_buffer_write)
+ ring_buffer_free(op_ring_buffer_write);
+ op_ring_buffer_write = NULL;
+}
+
int alloc_cpu_buffers(void)
{
int i;
- unsigned long buffer_size = fs_cpu_buffer_size;
+ unsigned long buffer_size = oprofile_cpu_buffer_size;
op_ring_buffer_read = ring_buffer_alloc(buffer_size, OP_BUFFER_FLAGS);
if (!op_ring_buffer_read)
b->last_is_kernel = -1;
b->tracing = 0;
b->buffer_size = buffer_size;
- b->tail_pos = 0;
- b->head_pos = 0;
b->sample_received = 0;
b->sample_lost_overflow = 0;
b->backtrace_aborted = 0;
flush_scheduled_work();
}
-static inline int
-add_sample(struct oprofile_cpu_buffer *cpu_buf,
- unsigned long pc, unsigned long event)
+/*
+ * This function prepares the cpu buffer to write a sample.
+ *
+ * Struct op_entry is used during operations on the ring buffer while
+ * struct op_sample contains the data that is stored in the ring
+ * buffer. Struct entry can be uninitialized. The function reserves a
+ * data array that is specified by size. Use
+ * op_cpu_buffer_write_commit() after preparing the sample. In case of
+ * errors a null pointer is returned, otherwise the pointer to the
+ * sample.
+ *
+ */
+struct op_sample
+*op_cpu_buffer_write_reserve(struct op_entry *entry, unsigned long size)
+{
+ entry->event = ring_buffer_lock_reserve
+ (op_ring_buffer_write, sizeof(struct op_sample) +
+ size * sizeof(entry->sample->data[0]), &entry->irq_flags);
+ if (entry->event)
+ entry->sample = ring_buffer_event_data(entry->event);
+ else
+ entry->sample = NULL;
+
+ if (!entry->sample)
+ return NULL;
+
+ entry->size = size;
+ entry->data = entry->sample->data;
+
+ return entry->sample;
+}
+
+int op_cpu_buffer_write_commit(struct op_entry *entry)
+{
+ return ring_buffer_unlock_commit(op_ring_buffer_write, entry->event,
+ entry->irq_flags);
+}
+
+struct op_sample *op_cpu_buffer_read_entry(struct op_entry *entry, int cpu)
+{
+ struct ring_buffer_event *e;
+ e = ring_buffer_consume(op_ring_buffer_read, cpu, NULL);
+ if (e)
+ goto event;
+ if (ring_buffer_swap_cpu(op_ring_buffer_read,
+ op_ring_buffer_write,
+ cpu))
+ return NULL;
+ e = ring_buffer_consume(op_ring_buffer_read, cpu, NULL);
+ if (e)
+ goto event;
+ return NULL;
+
+event:
+ entry->event = e;
+ entry->sample = ring_buffer_event_data(e);
+ entry->size = (ring_buffer_event_length(e) - sizeof(struct op_sample))
+ / sizeof(entry->sample->data[0]);
+ entry->data = entry->sample->data;
+ return entry->sample;
+}
+
+unsigned long op_cpu_buffer_entries(int cpu)
+{
+ return ring_buffer_entries_cpu(op_ring_buffer_read, cpu)
+ + ring_buffer_entries_cpu(op_ring_buffer_write, cpu);
+}
+
+static int
+op_add_code(struct oprofile_cpu_buffer *cpu_buf, unsigned long backtrace,
+ int is_kernel, struct task_struct *task)
{
struct op_entry entry;
- int ret;
+ struct op_sample *sample;
+ unsigned long flags;
+ int size;
+
+ flags = 0;
+
+ if (backtrace)
+ flags |= TRACE_BEGIN;
+
+ /* notice a switch from user->kernel or vice versa */
+ is_kernel = !!is_kernel;
+ if (cpu_buf->last_is_kernel != is_kernel) {
+ cpu_buf->last_is_kernel = is_kernel;
+ flags |= KERNEL_CTX_SWITCH;
+ if (is_kernel)
+ flags |= IS_KERNEL;
+ }
+
+ /* notice a task switch */
+ if (cpu_buf->last_task != task) {
+ cpu_buf->last_task = task;
+ flags |= USER_CTX_SWITCH;
+ }
+
+ if (!flags)
+ /* nothing to do */
+ return 0;
+
+ if (flags & USER_CTX_SWITCH)
+ size = 1;
+ else
+ size = 0;
+
+ sample = op_cpu_buffer_write_reserve(&entry, size);
+ if (!sample)
+ return -ENOMEM;
- ret = cpu_buffer_write_entry(&entry);
- if (ret)
- return ret;
+ sample->eip = ESCAPE_CODE;
+ sample->event = flags;
- entry.sample->eip = pc;
- entry.sample->event = event;
+ if (size)
+ op_cpu_buffer_add_data(&entry, (unsigned long)task);
- ret = cpu_buffer_write_commit(&entry);
- if (ret)
- return ret;
+ op_cpu_buffer_write_commit(&entry);
return 0;
}
static inline int
-add_code(struct oprofile_cpu_buffer *buffer, unsigned long value)
+op_add_sample(struct oprofile_cpu_buffer *cpu_buf,
+ unsigned long pc, unsigned long event)
{
- return add_sample(buffer, ESCAPE_CODE, value);
+ struct op_entry entry;
+ struct op_sample *sample;
+
+ sample = op_cpu_buffer_write_reserve(&entry, 0);
+ if (!sample)
+ return -ENOMEM;
+
+ sample->eip = pc;
+ sample->event = event;
+
+ return op_cpu_buffer_write_commit(&entry);
}
-/* This must be safe from any context. It's safe writing here
- * because of the head/tail separation of the writer and reader
- * of the CPU buffer.
+/*
+ * This must be safe from any context.
*
* is_kernel is needed because on some architectures you cannot
* tell if you are in kernel or user space simply by looking at
* pc. We tag this in the buffer by generating kernel enter/exit
* events whenever is_kernel changes
*/
-static int log_sample(struct oprofile_cpu_buffer *cpu_buf, unsigned long pc,
- int is_kernel, unsigned long event)
+static int
+log_sample(struct oprofile_cpu_buffer *cpu_buf, unsigned long pc,
+ unsigned long backtrace, int is_kernel, unsigned long event)
{
- struct task_struct *task;
-
cpu_buf->sample_received++;
if (pc == ESCAPE_CODE) {
return 0;
}
- is_kernel = !!is_kernel;
-
- task = current;
-
- /* notice a switch from user->kernel or vice versa */
- if (cpu_buf->last_is_kernel != is_kernel) {
- cpu_buf->last_is_kernel = is_kernel;
- if (add_code(cpu_buf, is_kernel))
- goto fail;
- }
-
- /* notice a task switch */
- if (cpu_buf->last_task != task) {
- cpu_buf->last_task = task;
- if (add_code(cpu_buf, (unsigned long)task))
- goto fail;
- }
+ if (op_add_code(cpu_buf, backtrace, is_kernel, current))
+ goto fail;
- if (add_sample(cpu_buf, pc, event))
+ if (op_add_sample(cpu_buf, pc, event))
goto fail;
return 1;
return 0;
}
-static int oprofile_begin_trace(struct oprofile_cpu_buffer *cpu_buf)
+static inline void oprofile_begin_trace(struct oprofile_cpu_buffer *cpu_buf)
{
- add_code(cpu_buf, CPU_TRACE_BEGIN);
cpu_buf->tracing = 1;
- return 1;
}
-static void oprofile_end_trace(struct oprofile_cpu_buffer *cpu_buf)
+static inline void oprofile_end_trace(struct oprofile_cpu_buffer *cpu_buf)
{
cpu_buf->tracing = 0;
}
-void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
- unsigned long event, int is_kernel)
+static inline void
+__oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
+ unsigned long event, int is_kernel)
{
struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(cpu_buffer);
-
- if (!backtrace_depth) {
- log_sample(cpu_buf, pc, is_kernel, event);
- return;
- }
-
- if (!oprofile_begin_trace(cpu_buf))
- return;
+ unsigned long backtrace = oprofile_backtrace_depth;
/*
* if log_sample() fail we can't backtrace since we lost the
* source of this event
*/
- if (log_sample(cpu_buf, pc, is_kernel, event))
- oprofile_ops.backtrace(regs, backtrace_depth);
+ if (!log_sample(cpu_buf, pc, backtrace, is_kernel, event))
+ /* failed */
+ return;
+
+ if (!backtrace)
+ return;
+
+ oprofile_begin_trace(cpu_buf);
+ oprofile_ops.backtrace(regs, backtrace);
oprofile_end_trace(cpu_buf);
}
+void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
+ unsigned long event, int is_kernel)
+{
+ __oprofile_add_ext_sample(pc, regs, event, is_kernel);
+}
+
void oprofile_add_sample(struct pt_regs * const regs, unsigned long event)
{
int is_kernel = !user_mode(regs);
unsigned long pc = profile_pc(regs);
- oprofile_add_ext_sample(pc, regs, event, is_kernel);
+ __oprofile_add_ext_sample(pc, regs, event, is_kernel);
}
-#ifdef CONFIG_OPROFILE_IBS
-
-#define MAX_IBS_SAMPLE_SIZE 14
-
-void oprofile_add_ibs_sample(struct pt_regs * const regs,
- unsigned int * const ibs_sample, int ibs_code)
+/*
+ * Add samples with data to the ring buffer.
+ *
+ * Use oprofile_add_data(&entry, val) to add data and
+ * oprofile_write_commit(&entry) to commit the sample.
+ */
+void
+oprofile_write_reserve(struct op_entry *entry, struct pt_regs * const regs,
+ unsigned long pc, int code, int size)
{
+ struct op_sample *sample;
int is_kernel = !user_mode(regs);
struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(cpu_buffer);
- struct task_struct *task;
- int fail = 0;
cpu_buf->sample_received++;
- /* notice a switch from user->kernel or vice versa */
- if (cpu_buf->last_is_kernel != is_kernel) {
- if (add_code(cpu_buf, is_kernel))
- goto fail;
- cpu_buf->last_is_kernel = is_kernel;
- }
-
- /* notice a task switch */
- if (!is_kernel) {
- task = current;
- if (cpu_buf->last_task != task) {
- if (add_code(cpu_buf, (unsigned long)task))
- goto fail;
- cpu_buf->last_task = task;
- }
- }
-
- fail = fail || add_code(cpu_buf, ibs_code);
- fail = fail || add_sample(cpu_buf, ibs_sample[0], ibs_sample[1]);
- fail = fail || add_sample(cpu_buf, ibs_sample[2], ibs_sample[3]);
- fail = fail || add_sample(cpu_buf, ibs_sample[4], ibs_sample[5]);
-
- if (ibs_code == IBS_OP_BEGIN) {
- fail = fail || add_sample(cpu_buf, ibs_sample[6], ibs_sample[7]);
- fail = fail || add_sample(cpu_buf, ibs_sample[8], ibs_sample[9]);
- fail = fail || add_sample(cpu_buf, ibs_sample[10], ibs_sample[11]);
- }
+ /* no backtraces for samples with data */
+ if (op_add_code(cpu_buf, 0, is_kernel, current))
+ goto fail;
- if (fail)
+ sample = op_cpu_buffer_write_reserve(entry, size + 2);
+ if (!sample)
goto fail;
+ sample->eip = ESCAPE_CODE;
+ sample->event = 0; /* no flags */
- if (backtrace_depth)
- oprofile_ops.backtrace(regs, backtrace_depth);
+ op_cpu_buffer_add_data(entry, code);
+ op_cpu_buffer_add_data(entry, pc);
return;
fail:
cpu_buf->sample_lost_overflow++;
- return;
}
-#endif
+int oprofile_add_data(struct op_entry *entry, unsigned long val)
+{
+ return op_cpu_buffer_add_data(entry, val);
+}
+
+int oprofile_write_commit(struct op_entry *entry)
+{
+ return op_cpu_buffer_write_commit(entry);
+}
void oprofile_add_pc(unsigned long pc, int is_kernel, unsigned long event)
{
struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(cpu_buffer);
- log_sample(cpu_buf, pc, is_kernel, event);
+ log_sample(cpu_buf, pc, 0, is_kernel, event);
}
void oprofile_add_trace(unsigned long pc)
if (pc == ESCAPE_CODE)
goto fail;
- if (add_sample(cpu_buf, pc, 0))
+ if (op_add_sample(cpu_buf, pc, 0))
goto fail;
return;
/**
* @file cpu_buffer.h
*
- * @remark Copyright 2002 OProfile authors
+ * @remark Copyright 2002-2009 OProfile authors
* @remark Read the file COPYING
*
* @author John Levon <levon@movementarian.org>
+ * @author Robert Richter <robert.richter@amd.com>
*/
#ifndef OPROFILE_CPU_BUFFER_H
struct op_sample {
unsigned long eip;
unsigned long event;
+ unsigned long data[0];
};
-struct op_entry {
- struct ring_buffer_event *event;
- struct op_sample *sample;
- unsigned long irq_flags;
-};
+struct op_entry;
struct oprofile_cpu_buffer {
- volatile unsigned long head_pos;
- volatile unsigned long tail_pos;
unsigned long buffer_size;
struct task_struct *last_task;
int last_is_kernel;
struct delayed_work work;
};
-extern struct ring_buffer *op_ring_buffer_read;
-extern struct ring_buffer *op_ring_buffer_write;
DECLARE_PER_CPU(struct oprofile_cpu_buffer, cpu_buffer);
/*
* reset these to invalid values; the next sample collected will
* populate the buffer with proper values to initialize the buffer
*/
-static inline void cpu_buffer_reset(int cpu)
+static inline void op_cpu_buffer_reset(int cpu)
{
struct oprofile_cpu_buffer *cpu_buf = &per_cpu(cpu_buffer, cpu);
cpu_buf->last_task = NULL;
}
-static inline int cpu_buffer_write_entry(struct op_entry *entry)
-{
- entry->event = ring_buffer_lock_reserve(op_ring_buffer_write,
- sizeof(struct op_sample),
- &entry->irq_flags);
- if (entry->event)
- entry->sample = ring_buffer_event_data(entry->event);
- else
- entry->sample = NULL;
-
- if (!entry->sample)
- return -ENOMEM;
-
- return 0;
-}
+struct op_sample
+*op_cpu_buffer_write_reserve(struct op_entry *entry, unsigned long size);
+int op_cpu_buffer_write_commit(struct op_entry *entry);
+struct op_sample *op_cpu_buffer_read_entry(struct op_entry *entry, int cpu);
+unsigned long op_cpu_buffer_entries(int cpu);
-static inline int cpu_buffer_write_commit(struct op_entry *entry)
+/* returns the remaining free size of data in the entry */
+static inline
+int op_cpu_buffer_add_data(struct op_entry *entry, unsigned long val)
{
- return ring_buffer_unlock_commit(op_ring_buffer_write, entry->event,
- entry->irq_flags);
+ if (!entry->size)
+ return 0;
+ *entry->data = val;
+ entry->size--;
+ entry->data++;
+ return entry->size;
}
-static inline struct op_sample *cpu_buffer_read_entry(int cpu)
+/* returns the size of data in the entry */
+static inline
+int op_cpu_buffer_get_size(struct op_entry *entry)
{
- struct ring_buffer_event *e;
- e = ring_buffer_consume(op_ring_buffer_read, cpu, NULL);
- if (e)
- return ring_buffer_event_data(e);
- if (ring_buffer_swap_cpu(op_ring_buffer_read,
- op_ring_buffer_write,
- cpu))
- return NULL;
- e = ring_buffer_consume(op_ring_buffer_read, cpu, NULL);
- if (e)
- return ring_buffer_event_data(e);
- return NULL;
+ return entry->size;
}
-/* "acquire" as many cpu buffer slots as we can */
-static inline unsigned long cpu_buffer_entries(int cpu)
+/* returns 0 if empty or the size of data including the current value */
+static inline
+int op_cpu_buffer_get_data(struct op_entry *entry, unsigned long *val)
{
- return ring_buffer_entries_cpu(op_ring_buffer_read, cpu)
- + ring_buffer_entries_cpu(op_ring_buffer_write, cpu);
+ int size = entry->size;
+ if (!size)
+ return 0;
+ *val = *entry->data;
+ entry->size--;
+ entry->data++;
+ return size;
}
-/* transient events for the CPU buffer -> event buffer */
-#define CPU_IS_KERNEL 1
-#define CPU_TRACE_BEGIN 2
-#define IBS_FETCH_BEGIN 3
-#define IBS_OP_BEGIN 4
+/* extra data flags */
+#define KERNEL_CTX_SWITCH (1UL << 0)
+#define IS_KERNEL (1UL << 1)
+#define TRACE_BEGIN (1UL << 2)
+#define USER_CTX_SWITCH (1UL << 3)
#endif /* OPROFILE_CPU_BUFFER_H */
unsigned long flags;
spin_lock_irqsave(&oprofilefs_lock, flags);
- buffer_size = fs_buffer_size;
- buffer_watershed = fs_buffer_watershed;
+ buffer_size = oprofile_buffer_size;
+ buffer_watershed = oprofile_buffer_watershed;
spin_unlock_irqrestore(&oprofilefs_lock, flags);
if (buffer_watershed >= buffer_size)
struct oprofile_operations oprofile_ops;
unsigned long oprofile_started;
-unsigned long backtrace_depth;
+unsigned long oprofile_backtrace_depth;
static unsigned long is_setup;
static DEFINE_MUTEX(start_mutex);
goto out;
}
- backtrace_depth = val;
+ oprofile_backtrace_depth = val;
out:
mutex_unlock(&start_mutex);
struct oprofile_operations;
-extern unsigned long fs_buffer_size;
-extern unsigned long fs_cpu_buffer_size;
-extern unsigned long fs_buffer_watershed;
+extern unsigned long oprofile_buffer_size;
+extern unsigned long oprofile_cpu_buffer_size;
+extern unsigned long oprofile_buffer_watershed;
extern struct oprofile_operations oprofile_ops;
extern unsigned long oprofile_started;
-extern unsigned long backtrace_depth;
+extern unsigned long oprofile_backtrace_depth;
struct super_block;
struct dentry;
#include "oprofile_stats.h"
#include "oprof.h"
-#define FS_BUFFER_SIZE_DEFAULT 131072
-#define FS_CPU_BUFFER_SIZE_DEFAULT 8192
-#define FS_BUFFER_WATERSHED_DEFAULT 32768 /* FIXME: tune */
+#define BUFFER_SIZE_DEFAULT 131072
+#define CPU_BUFFER_SIZE_DEFAULT 8192
+#define BUFFER_WATERSHED_DEFAULT 32768 /* FIXME: tune */
-unsigned long fs_buffer_size;
-unsigned long fs_cpu_buffer_size;
-unsigned long fs_buffer_watershed;
+unsigned long oprofile_buffer_size;
+unsigned long oprofile_cpu_buffer_size;
+unsigned long oprofile_buffer_watershed;
static ssize_t depth_read(struct file *file, char __user *buf, size_t count, loff_t *offset)
{
- return oprofilefs_ulong_to_user(backtrace_depth, buf, count, offset);
+ return oprofilefs_ulong_to_user(oprofile_backtrace_depth, buf, count,
+ offset);
}
void oprofile_create_files(struct super_block *sb, struct dentry *root)
{
/* reinitialize default values */
- fs_buffer_size = FS_BUFFER_SIZE_DEFAULT;
- fs_cpu_buffer_size = FS_CPU_BUFFER_SIZE_DEFAULT;
- fs_buffer_watershed = FS_BUFFER_WATERSHED_DEFAULT;
+ oprofile_buffer_size = BUFFER_SIZE_DEFAULT;
+ oprofile_cpu_buffer_size = CPU_BUFFER_SIZE_DEFAULT;
+ oprofile_buffer_watershed = BUFFER_WATERSHED_DEFAULT;
oprofilefs_create_file(sb, root, "enable", &enable_fops);
oprofilefs_create_file_perm(sb, root, "dump", &dump_fops, 0666);
oprofilefs_create_file(sb, root, "buffer", &event_buffer_fops);
- oprofilefs_create_ulong(sb, root, "buffer_size", &fs_buffer_size);
- oprofilefs_create_ulong(sb, root, "buffer_watershed", &fs_buffer_watershed);
- oprofilefs_create_ulong(sb, root, "cpu_buffer_size", &fs_cpu_buffer_size);
+ oprofilefs_create_ulong(sb, root, "buffer_size", &oprofile_buffer_size);
+ oprofilefs_create_ulong(sb, root, "buffer_watershed", &oprofile_buffer_watershed);
+ oprofilefs_create_ulong(sb, root, "cpu_buffer_size", &oprofile_cpu_buffer_size);
oprofilefs_create_file(sb, root, "cpu_type", &cpu_type_fops);
oprofilefs_create_file(sb, root, "backtrace_depth", &depth_fops);
oprofilefs_create_file(sb, root, "pointer_size", &pointer_size_fops);
*/
#define ASP_INTERRUPT_ADDR 0xf0800000
-int __init
-asp_init_chip(struct parisc_device *dev)
+static int __init asp_init_chip(struct parisc_device *dev)
{
struct gsc_irq gsc_irq;
int ret;
* (Load Coherence Index) instruction. The 8 bits used for the virtual
* index are bits 12:19 of the value returned by LCI.
*/
-void CCIO_INLINE
+static void CCIO_INLINE
ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
unsigned long hints)
{
ioc_count++;
- parisc_vmerge_boundary = IOVP_SIZE;
- parisc_vmerge_max_size = BITS_PER_LONG * IOVP_SIZE;
parisc_has_iommu();
return 0;
}
DINO_PORT_OUT(w, 16, 2)
DINO_PORT_OUT(l, 32, 0)
-struct pci_port_ops dino_port_ops = {
+static struct pci_port_ops dino_port_ops = {
.inb = dino_in8,
.inw = dino_in16,
.inl = dino_in32,
}
-struct pci_bios_ops dino_bios_ops = {
+static struct pci_bios_ops dino_bios_ops = {
.init = dino_bios_init,
.fixup_bus = dino_fixup_bus
};
struct hppb_card *next;
};
-struct hppb_card hppb_card_head = {
+static struct hppb_card hppb_card_head = {
.hpa = 0,
.next = NULL,
};
#else
-void __init lasi_led_init(unsigned long lasi_hpa)
+static void __init lasi_led_init(unsigned long lasi_hpa)
{
unsigned long datareg;
gsc_writel(0x02, datareg);
}
-int __init
-lasi_init_chip(struct parisc_device *dev)
+static int __init lasi_init_chip(struct parisc_device *dev)
{
extern void (*chassis_power_off)(void);
struct gsc_asic *lasi;
}
-struct pci_bios_ops lba_bios_ops = {
+static struct pci_bios_ops lba_bios_ops = {
.init = lba_bios_init,
.fixup_bus = lba_fixup_bus,
};
* IOMMU uses little endian for the pdir.
*/
-void SBA_INLINE
+static void SBA_INLINE
sba_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
unsigned long hint)
{
{ 0, }
};
-int sba_driver_callback(struct parisc_device *);
+static int sba_driver_callback(struct parisc_device *);
static struct parisc_driver sba_driver = {
.name = MODULE_NAME,
** If so, initialize the chip and tell other partners in crime they
** have work to do.
*/
-int
-sba_driver_callback(struct parisc_device *dev)
+static int sba_driver_callback(struct parisc_device *dev)
{
struct sba_device *sba_dev;
u32 func_class;
proc_create("sba_iommu-bitmap", 0, root, &sba_proc_bitmap_fops);
#endif
- parisc_vmerge_boundary = IOVP_SIZE;
- parisc_vmerge_max_size = IOVP_SIZE * BITS_PER_LONG;
parisc_has_iommu();
return 0;
}
// gsc_writel(0xFFFFFFFF, base+0x2000); /* RS232-B on Wax */
}
-int __init
-wax_init_chip(struct parisc_device *dev)
+static int __init wax_init_chip(struct parisc_device *dev)
{
struct gsc_asic *wax;
struct parisc_device *parent;
#include <linux/pci-acpi.h>
#include <acpi/acpi.h>
#include <acpi/acpi_bus.h>
-#include <acpi/actypes.h>
#define MY_NAME "acpi_pcihp"
#ifdef CONFIG_ACPI
#include <acpi/acpi.h>
#include <acpi/acpi_bus.h>
-#include <acpi/actypes.h>
#include <linux/pci-acpi.h>
extern void __init pciehp_acpi_slot_detection_init(void);
#include <linux/module.h>
#include <linux/pci-aspm.h>
#include <acpi/acpi.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acresrc.h>
#include <acpi/acpi_bus.h>
#include <linux/pci-acpi.h>
--- /dev/null
+# drivers/platform/Kconfig
+
+if X86
+source "drivers/platform/x86/Kconfig"
+endif
--- /dev/null
+#
+# Makefile for linux/drivers/platform
+#
+
+obj-$(CONFIG_X86) += x86/
--- /dev/null
+#
+# X86 Platform Specific Drivers
+#
+
+menuconfig X86_PLATFORM_DEVICES
+ bool "X86 Platform Specific Device Drivers"
+ default y
+ ---help---
+ Say Y here to get to see options for device drivers for various
+ x86 platforms, including vendor-specific laptop extension drivers.
+ This option alone does not add any kernel code.
+
+ If you say N, all options in this submenu will be skipped and disabled.
+
+if X86_PLATFORM_DEVICES
+
+config ACER_WMI
+ tristate "Acer WMI Laptop Extras (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ depends on ACPI
+ depends on LEDS_CLASS
+ depends on NEW_LEDS
+ depends on BACKLIGHT_CLASS_DEVICE
+ depends on SERIO_I8042
+ depends on RFKILL
+ select ACPI_WMI
+ ---help---
+ This is a driver for newer Acer (and Wistron) laptops. It adds
+ wireless radio and bluetooth control, and on some laptops,
+ exposes the mail LED and LCD backlight.
+
+ For more information about this driver see
+ <file:Documentation/laptops/acer-wmi.txt>
+
+ If you have an ACPI-WMI compatible Acer/ Wistron laptop, say Y or M
+ here.
+
+config ASUS_LAPTOP
+ tristate "Asus Laptop Extras (EXPERIMENTAL)"
+ depends on ACPI
+ depends on EXPERIMENTAL && !ACPI_ASUS
+ depends on LEDS_CLASS
+ depends on NEW_LEDS
+ depends on BACKLIGHT_CLASS_DEVICE
+ ---help---
+ This is the new Linux driver for Asus laptops. It may also support some
+ MEDION, JVC or VICTOR laptops. It makes all the extra buttons generate
+ standard ACPI events that go through /proc/acpi/events. It also adds
+ support for video output switching, LCD backlight control, Bluetooth and
+ Wlan control, and most importantly, allows you to blink those fancy LEDs.
+
+ For more information and a userspace daemon for handling the extra
+ buttons see <http://acpi4asus.sf.net/>.
+
+ If you have an ACPI-compatible ASUS laptop, say Y or M here.
+
+config FUJITSU_LAPTOP
+ tristate "Fujitsu Laptop Extras"
+ depends on ACPI
+ depends on INPUT
+ depends on BACKLIGHT_CLASS_DEVICE
+ ---help---
+ This is a driver for laptops built by Fujitsu:
+
+ * P2xxx/P5xxx/S6xxx/S7xxx series Lifebooks
+ * Possibly other Fujitsu laptop models
+ * Tested with S6410 and S7020
+
+ It adds support for LCD brightness control and some hotkeys.
+
+ If you have a Fujitsu laptop, say Y or M here.
+
+config FUJITSU_LAPTOP_DEBUG
+ bool "Verbose debug mode for Fujitsu Laptop Extras"
+ depends on FUJITSU_LAPTOP
+ default n
+ ---help---
+ Enables extra debug output from the fujitsu extras driver, at the
+ expense of a slight increase in driver size.
+
+ If you are not sure, say N here.
+
+config TC1100_WMI
+ tristate "HP Compaq TC1100 Tablet WMI Extras (EXPERIMENTAL)"
+ depends on !X86_64
+ depends on EXPERIMENTAL
+ depends on ACPI
+ select ACPI_WMI
+ ---help---
+ This is a driver for the WMI extensions (wireless and bluetooth power
+ control) of the HP Compaq TC1100 tablet.
+
+config HP_WMI
+ tristate "HP WMI extras"
+ depends on ACPI_WMI
+ depends on INPUT
+ depends on RFKILL
+ help
+ Say Y here if you want to support WMI-based hotkeys on HP laptops and
+ to read data from WMI such as docking or ambient light sensor state.
+
+ To compile this driver as a module, choose M here: the module will
+ be called hp-wmi.
+
+config MSI_LAPTOP
+ tristate "MSI Laptop Extras"
+ depends on ACPI
+ depends on BACKLIGHT_CLASS_DEVICE
+ ---help---
+ This is a driver for laptops built by MSI (MICRO-STAR
+ INTERNATIONAL):
+
+ MSI MegaBook S270 (MS-1013)
+ Cytron/TCM/Medion/Tchibo MD96100/SAM2000
+
+ It adds support for Bluetooth, WLAN and LCD brightness control.
+
+ More information about this driver is available at
+ <http://0pointer.de/lennart/tchibo.html>.
+
+ If you have an MSI S270 laptop, say Y or M here.
+
+config PANASONIC_LAPTOP
+ tristate "Panasonic Laptop Extras"
+ depends on INPUT && ACPI
+ depends on BACKLIGHT_CLASS_DEVICE
+ ---help---
+ This driver adds support for access to backlight control and hotkeys
+ on Panasonic Let's Note laptops.
+
+ If you have a Panasonic Let's note laptop (such as the R1(N variant),
+ R2, R3, R5, T2, W2 and Y2 series), say Y.
+
+config COMPAL_LAPTOP
+ tristate "Compal Laptop Extras"
+ depends on ACPI
+ depends on BACKLIGHT_CLASS_DEVICE
+ ---help---
+ This is a driver for laptops built by Compal:
+
+ Compal FL90/IFL90
+ Compal FL91/IFL91
+ Compal FL92/JFL92
+ Compal FT00/IFT00
+
+ It adds support for Bluetooth, WLAN and LCD brightness control.
+
+ If you have an Compal FL9x/IFL9x/FT00 laptop, say Y or M here.
+
+config SONY_LAPTOP
+ tristate "Sony Laptop Extras"
+ depends on ACPI
+ select BACKLIGHT_CLASS_DEVICE
+ depends on INPUT
+ ---help---
+ This mini-driver drives the SNC and SPIC devices present in the ACPI
+ BIOS of the Sony Vaio laptops.
+
+ It gives access to some extra laptop functionalities like Bluetooth,
+ screen brightness control, Fn keys and allows powering on/off some
+ devices.
+
+ Read <file:Documentation/laptops/sony-laptop.txt> for more information.
+
+config SONYPI_COMPAT
+ bool "Sonypi compatibility"
+ depends on SONY_LAPTOP
+ ---help---
+ Build the sonypi driver compatibility code into the sony-laptop driver.
+
+config THINKPAD_ACPI
+ tristate "ThinkPad ACPI Laptop Extras"
+ depends on ACPI
+ select BACKLIGHT_LCD_SUPPORT
+ select BACKLIGHT_CLASS_DEVICE
+ select HWMON
+ select NVRAM
+ select INPUT
+ select NEW_LEDS
+ select LEDS_CLASS
+ select NET
+ select RFKILL
+ ---help---
+ This is a driver for the IBM and Lenovo ThinkPad laptops. It adds
+ support for Fn-Fx key combinations, Bluetooth control, video
+ output switching, ThinkLight control, UltraBay eject and more.
+ For more information about this driver see
+ <file:Documentation/laptops/thinkpad-acpi.txt> and
+ <http://ibm-acpi.sf.net/> .
+
+ This driver was formerly known as ibm-acpi.
+
+ If you have an IBM or Lenovo ThinkPad laptop, say Y or M here.
+
+config THINKPAD_ACPI_DEBUG
+ bool "Verbose debug mode"
+ depends on THINKPAD_ACPI
+ default n
+ ---help---
+ Enables extra debugging information, at the expense of a slightly
+ increase in driver size.
+
+ If you are not sure, say N here.
+
+config THINKPAD_ACPI_DOCK
+ bool "Legacy Docking Station Support"
+ depends on THINKPAD_ACPI
+ depends on ACPI_DOCK=n
+ default n
+ ---help---
+ Allows the thinkpad_acpi driver to handle docking station events.
+ This support was made obsolete by the generic ACPI docking station
+ support (CONFIG_ACPI_DOCK). It will allow locking and removing the
+ laptop from the docking station, but will not properly connect PCI
+ devices.
+
+ If you are not sure, say N here.
+
+config THINKPAD_ACPI_BAY
+ bool "Legacy Removable Bay Support"
+ depends on THINKPAD_ACPI
+ default y
+ ---help---
+ Allows the thinkpad_acpi driver to handle removable bays. It will
+ electrically disable the device in the bay, and also generate
+ notifications when the bay lever is ejected or inserted.
+
+ If you are not sure, say Y here.
+
+config THINKPAD_ACPI_VIDEO
+ bool "Video output control support"
+ depends on THINKPAD_ACPI
+ default y
+ ---help---
+ Allows the thinkpad_acpi driver to provide an interface to control
+ the various video output ports.
+
+ This feature often won't work well, depending on ThinkPad model,
+ display state, video output devices in use, whether there is a X
+ server running, phase of the moon, and the current mood of
+ Schroedinger's cat. If you can use X.org's RandR to control
+ your ThinkPad's video output ports instead of this feature,
+ don't think twice: do it and say N here to save some memory.
+
+ If you are not sure, say Y here.
+
+config THINKPAD_ACPI_HOTKEY_POLL
+ bool "Support NVRAM polling for hot keys"
+ depends on THINKPAD_ACPI
+ default y
+ ---help---
+ Some thinkpad models benefit from NVRAM polling to detect a few of
+ the hot key press events. If you know your ThinkPad model does not
+ need to do NVRAM polling to support any of the hot keys you use,
+ unselecting this option will save about 1kB of memory.
+
+ ThinkPads T40 and newer, R52 and newer, and X31 and newer are
+ unlikely to need NVRAM polling in their latest BIOS versions.
+
+ NVRAM polling can detect at most the following keys: ThinkPad/Access
+ IBM, Zoom, Switch Display (fn+F7), ThinkLight, Volume up/down/mute,
+ Brightness up/down, Display Expand (fn+F8), Hibernate (fn+F12).
+
+ If you are not sure, say Y here. The driver enables polling only if
+ it is strictly necessary to do so.
+
+config INTEL_MENLOW
+ tristate "Thermal Management driver for Intel menlow platform"
+ depends on ACPI_THERMAL
+ select THERMAL
+ ---help---
+ ACPI thermal management enhancement driver on
+ Intel Menlow platform.
+
+ If unsure, say N.
+
+config EEEPC_LAPTOP
+ tristate "Eee PC Hotkey Driver (EXPERIMENTAL)"
+ depends on ACPI
+ depends on EXPERIMENTAL
+ select BACKLIGHT_CLASS_DEVICE
+ select HWMON
+ select RFKILL
+ ---help---
+ This driver supports the Fn-Fx keys on Eee PC laptops.
+ It also adds the ability to switch camera/wlan on/off.
+
+ If you have an Eee PC laptop, say Y or M here.
+
+
+config ACPI_WMI
+ tristate "WMI (EXPERIMENTAL)"
+ depends on ACPI
+ depends on EXPERIMENTAL
+ help
+ This driver adds support for the ACPI-WMI (Windows Management
+ Instrumentation) mapper device (PNP0C14) found on some systems.
+
+ ACPI-WMI is a proprietary extension to ACPI to expose parts of the
+ ACPI firmware to userspace - this is done through various vendor
+ defined methods and data blocks in a PNP0C14 device, which are then
+ made available for userspace to call.
+
+ The implementation of this in Linux currently only exposes this to
+ other kernel space drivers.
+
+ This driver is a required dependency to build the firmware specific
+ drivers needed on many machines, including Acer and HP laptops.
+
+ It is safe to enable this driver even if your DSDT doesn't define
+ any ACPI-WMI devices.
+
+config ACPI_ASUS
+ tristate "ASUS/Medion Laptop Extras"
+ depends on ACPI
+ select BACKLIGHT_CLASS_DEVICE
+ ---help---
+ This driver provides support for extra features of ACPI-compatible
+ ASUS laptops. As some of Medion laptops are made by ASUS, it may also
+ support some Medion laptops (such as 9675 for example). It makes all
+ the extra buttons generate standard ACPI events that go through
+ /proc/acpi/events, and (on some models) adds support for changing the
+ display brightness and output, switching the LCD backlight on and off,
+ and most importantly, allows you to blink those fancy LEDs intended
+ for reporting mail and wireless status.
+
+ Note: display switching code is currently considered EXPERIMENTAL,
+ toying with these values may even lock your machine.
+
+ All settings are changed via /proc/acpi/asus directory entries. Owner
+ and group for these entries can be set with asus_uid and asus_gid
+ parameters.
+
+ More information and a userspace daemon for handling the extra buttons
+ at <http://sourceforge.net/projects/acpi4asus/>.
+
+ If you have an ACPI-compatible ASUS laptop, say Y or M here. This
+ driver is still under development, so if your laptop is unsupported or
+ something works not quite as expected, please use the mailing list
+ available on the above page (acpi4asus-user@lists.sourceforge.net).
+
+ NOTE: This driver is deprecated and will probably be removed soon,
+ use asus-laptop instead.
+
+config ACPI_TOSHIBA
+ tristate "Toshiba Laptop Extras"
+ depends on ACPI
+ depends on INPUT
+ select INPUT_POLLDEV
+ select NET
+ select RFKILL
+ select BACKLIGHT_CLASS_DEVICE
+ ---help---
+ This driver adds support for access to certain system settings
+ on "legacy free" Toshiba laptops. These laptops can be recognized by
+ their lack of a BIOS setup menu and APM support.
+
+ On these machines, all system configuration is handled through the
+ ACPI. This driver is required for access to controls not covered
+ by the general ACPI drivers, such as LCD brightness, video output,
+ etc.
+
+ This driver differs from the non-ACPI Toshiba laptop driver (located
+ under "Processor type and features") in several aspects.
+ Configuration is accessed by reading and writing text files in the
+ /proc tree instead of by program interface to /dev. Furthermore, no
+ power management functions are exposed, as those are handled by the
+ general ACPI drivers.
+
+ More information about this driver is available at
+ <http://memebeam.org/toys/ToshibaAcpiDriver>.
+
+ If you have a legacy free Toshiba laptop (such as the Libretto L1
+ series), say Y.
+endif # X86_PLATFORM_DEVICES
--- /dev/null
+#
+# Makefile for linux/drivers/platform/x86
+# x86 Platform-Specific Drivers
+#
+obj-$(CONFIG_ASUS_LAPTOP) += asus-laptop.o
+obj-$(CONFIG_EEEPC_LAPTOP) += eeepc-laptop.o
+obj-$(CONFIG_MSI_LAPTOP) += msi-laptop.o
+obj-$(CONFIG_COMPAL_LAPTOP) += compal-laptop.o
+obj-$(CONFIG_ACER_WMI) += acer-wmi.o
+obj-$(CONFIG_HP_WMI) += hp-wmi.o
+obj-$(CONFIG_TC1100_WMI) += tc1100-wmi.o
+obj-$(CONFIG_SONY_LAPTOP) += sony-laptop.o
+obj-$(CONFIG_THINKPAD_ACPI) += thinkpad_acpi.o
+obj-$(CONFIG_FUJITSU_LAPTOP) += fujitsu-laptop.o
+obj-$(CONFIG_PANASONIC_LAPTOP) += panasonic-laptop.o
+obj-$(CONFIG_INTEL_MENLOW) += intel_menlow.o
+obj-$(CONFIG_ACPI_WMI) += wmi.o
+obj-$(CONFIG_ACPI_ASUS) += asus_acpi.o
+obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o
/*
Copyright (C) 2007,2008 Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Copyright (C) 2008 Peter Gruber <nokos@gmx.net>
+ Copyright (C) 2008 Tony Vroon <tony@linx.net>
Based on earlier work:
Copyright (C) 2003 Shane Spencer <shane@bogomip.com>
Adrian Yee <brewt-fujitsu@brewt.org>
#include <linux/kfifo.h>
#include <linux/video_output.h>
#include <linux/platform_device.h>
+#ifdef CONFIG_LEDS_CLASS
+#include <linux/leds.h>
+#endif
-#define FUJITSU_DRIVER_VERSION "0.4.3"
+#define FUJITSU_DRIVER_VERSION "0.5.0"
#define FUJITSU_LCD_N_LEVELS 8
#define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x86
#define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x87
+/* FUNC interface - command values */
+#define FUNC_RFKILL 0x1000
+#define FUNC_LEDS 0x1001
+#define FUNC_BUTTONS 0x1002
+#define FUNC_BACKLIGHT 0x1004
+
+/* FUNC interface - responses */
+#define UNSUPPORTED_CMD 0x80000000
+
+#ifdef CONFIG_LEDS_CLASS
+/* FUNC interface - LED control */
+#define FUNC_LED_OFF 0x1
+#define FUNC_LED_ON 0x30001
+#define KEYBOARD_LAMPS 0x100
+#define LOGOLAMP_POWERON 0x2000
+#define LOGOLAMP_ALWAYS 0x4000
+#endif
+
/* Hotkey details */
#define KEY1_CODE 0x410 /* codes for the keys in the GIRB register */
#define KEY2_CODE 0x411
static struct fujitsu_t *fujitsu;
static int use_alt_lcd_levels = -1;
-static int disable_brightness_keys = -1;
static int disable_brightness_adjust = -1;
/* Device used to access other hotkeys on the laptop */
struct platform_device *pf_device;
struct kfifo *fifo;
spinlock_t fifo_lock;
-
- unsigned int irb; /* info about the pressed buttons */
+ int rfkill_state;
+ int logolamp_registered;
+ int kblamps_registered;
};
static struct fujitsu_hotkey_t *fujitsu_hotkey;
static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event,
void *data);
+#ifdef CONFIG_LEDS_CLASS
+static enum led_brightness logolamp_get(struct led_classdev *cdev);
+static void logolamp_set(struct led_classdev *cdev,
+ enum led_brightness brightness);
+
+struct led_classdev logolamp_led = {
+ .name = "fujitsu::logolamp",
+ .brightness_get = logolamp_get,
+ .brightness_set = logolamp_set
+};
+
+static enum led_brightness kblamps_get(struct led_classdev *cdev);
+static void kblamps_set(struct led_classdev *cdev,
+ enum led_brightness brightness);
+
+struct led_classdev kblamps_led = {
+ .name = "fujitsu::kblamps",
+ .brightness_get = kblamps_get,
+ .brightness_set = kblamps_set
+};
+#endif
+
#ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
static u32 dbg_level = 0x03;
#endif
static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data);
+/* Fujitsu ACPI interface function */
+
+static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
+{
+ acpi_status status = AE_OK;
+ union acpi_object params[4] = {
+ { .type = ACPI_TYPE_INTEGER },
+ { .type = ACPI_TYPE_INTEGER },
+ { .type = ACPI_TYPE_INTEGER },
+ { .type = ACPI_TYPE_INTEGER }
+ };
+ struct acpi_object_list arg_list = { 4, ¶ms[0] };
+ struct acpi_buffer output;
+ union acpi_object out_obj;
+ acpi_handle handle = NULL;
+
+ status = acpi_get_handle(fujitsu_hotkey->acpi_handle, "FUNC", &handle);
+ if (ACPI_FAILURE(status)) {
+ vdbg_printk(FUJLAPTOP_DBG_ERROR,
+ "FUNC interface is not present\n");
+ return -ENODEV;
+ }
+
+ params[0].integer.value = cmd;
+ params[1].integer.value = arg0;
+ params[2].integer.value = arg1;
+ params[3].integer.value = arg2;
+
+ output.length = sizeof(out_obj);
+ output.pointer = &out_obj;
+
+ status = acpi_evaluate_object(handle, NULL, &arg_list, &output);
+ if (ACPI_FAILURE(status)) {
+ vdbg_printk(FUJLAPTOP_DBG_WARN,
+ "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) call failed\n",
+ cmd, arg0, arg1, arg2);
+ return -ENODEV;
+ }
+
+ if (out_obj.type != ACPI_TYPE_INTEGER) {
+ vdbg_printk(FUJLAPTOP_DBG_WARN,
+ "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) did not "
+ "return an integer\n",
+ cmd, arg0, arg1, arg2);
+ return -ENODEV;
+ }
+
+ vdbg_printk(FUJLAPTOP_DBG_TRACE,
+ "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) returned 0x%x\n",
+ cmd, arg0, arg1, arg2, (int)out_obj.integer.value);
+ return out_obj.integer.value;
+}
+
+#ifdef CONFIG_LEDS_CLASS
+/* LED class callbacks */
+
+static void logolamp_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ if (brightness >= LED_FULL) {
+ call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
+ call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_ON);
+ } else if (brightness >= LED_HALF) {
+ call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
+ call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_OFF);
+ } else {
+ call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_OFF);
+ }
+}
+
+static void kblamps_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ if (brightness >= LED_FULL)
+ call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_ON);
+ else
+ call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_OFF);
+}
+
+static enum led_brightness logolamp_get(struct led_classdev *cdev)
+{
+ enum led_brightness brightness = LED_OFF;
+ int poweron, always;
+
+ poweron = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_POWERON, 0x0);
+ if (poweron == FUNC_LED_ON) {
+ brightness = LED_HALF;
+ always = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_ALWAYS, 0x0);
+ if (always == FUNC_LED_ON)
+ brightness = LED_FULL;
+ }
+ return brightness;
+}
+
+static enum led_brightness kblamps_get(struct led_classdev *cdev)
+{
+ enum led_brightness brightness = LED_OFF;
+
+ if (call_fext_func(FUNC_LEDS, 0x2, KEYBOARD_LAMPS, 0x0) == FUNC_LED_ON)
+ brightness = LED_FULL;
+
+ return brightness;
+}
+#endif
+
/* Hardware access for LCD brightness control */
static int set_lcd_level(int level)
return fujitsu->max_brightness;
}
-static int get_lcd_level_alt(void)
-{
- unsigned long long state = 0;
- acpi_status status = AE_OK;
-
- vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLS\n");
-
- status =
- acpi_evaluate_integer(fujitsu->acpi_handle, "GBLS", NULL, &state);
- if (status < 0)
- return status;
-
- fujitsu->brightness_level = state & 0x0fffffff;
-
- if (state & 0x80000000)
- fujitsu->brightness_changed = 1;
- else
- fujitsu->brightness_changed = 0;
-
- return fujitsu->brightness_level;
-}
-
/* Backlight device stuff */
static int bl_get_brightness(struct backlight_device *b)
{
- if (use_alt_lcd_levels)
- return get_lcd_level_alt();
- else
- return get_lcd_level();
+ return get_lcd_level();
}
static int bl_update_status(struct backlight_device *b)
{
+ int ret;
+ if (b->props.power == 4)
+ ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x3);
+ else
+ ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x0);
+ if (ret != 0)
+ vdbg_printk(FUJLAPTOP_DBG_ERROR,
+ "Unable to adjust backlight power, error code %i\n",
+ ret);
+
if (use_alt_lcd_levels)
- return set_lcd_level_alt(b->props.brightness);
+ ret = set_lcd_level_alt(b->props.brightness);
else
- return set_lcd_level(b->props.brightness);
+ ret = set_lcd_level(b->props.brightness);
+ if (ret != 0)
+ vdbg_printk(FUJLAPTOP_DBG_ERROR,
+ "Unable to adjust LCD brightness, error code %i\n",
+ ret);
+ return ret;
}
static struct backlight_ops fujitsubl_ops = {
int ret;
- if (use_alt_lcd_levels)
- ret = get_lcd_level_alt();
- else
- ret = get_lcd_level();
+ ret = get_lcd_level();
if (ret < 0)
return ret;
if (ret < 0)
return ret;
- if (use_alt_lcd_levels)
- ret = get_lcd_level_alt();
- else
- ret = get_lcd_level();
+ ret = get_lcd_level();
if (ret < 0)
return ret;
return count;
}
-/* Hardware access for hotkey device */
-
-static int get_irb(void)
+static ssize_t
+ignore_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
{
- unsigned long long state = 0;
- acpi_status status = AE_OK;
-
- vdbg_printk(FUJLAPTOP_DBG_TRACE, "Get irb\n");
-
- status =
- acpi_evaluate_integer(fujitsu_hotkey->acpi_handle, "GIRB", NULL,
- &state);
- if (status < 0)
- return status;
+ return count;
+}
- fujitsu_hotkey->irb = state;
+static ssize_t
+show_lid_state(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ if (fujitsu_hotkey->rfkill_state == UNSUPPORTED_CMD)
+ return sprintf(buf, "unknown\n");
+ if (fujitsu_hotkey->rfkill_state & 0x100)
+ return sprintf(buf, "open\n");
+ else
+ return sprintf(buf, "closed\n");
+}
- return fujitsu_hotkey->irb;
+static ssize_t
+show_dock_state(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ if (fujitsu_hotkey->rfkill_state == UNSUPPORTED_CMD)
+ return sprintf(buf, "unknown\n");
+ if (fujitsu_hotkey->rfkill_state & 0x200)
+ return sprintf(buf, "docked\n");
+ else
+ return sprintf(buf, "undocked\n");
}
static ssize_t
-ignore_store(struct device *dev,
- struct device_attribute *attr, const char *buf, size_t count)
+show_radios_state(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- return count;
+ if (fujitsu_hotkey->rfkill_state == UNSUPPORTED_CMD)
+ return sprintf(buf, "unknown\n");
+ if (fujitsu_hotkey->rfkill_state & 0x20)
+ return sprintf(buf, "on\n");
+ else
+ return sprintf(buf, "killed\n");
}
static DEVICE_ATTR(max_brightness, 0444, show_max_brightness, ignore_store);
static DEVICE_ATTR(brightness_changed, 0444, show_brightness_changed,
ignore_store);
static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
+static DEVICE_ATTR(lid, 0444, show_lid_state, ignore_store);
+static DEVICE_ATTR(dock, 0444, show_dock_state, ignore_store);
+static DEVICE_ATTR(radios, 0444, show_radios_state, ignore_store);
static struct attribute *fujitsupf_attributes[] = {
&dev_attr_brightness_changed.attr,
&dev_attr_max_brightness.attr,
&dev_attr_lcd_level.attr,
+ &dev_attr_lid.attr,
+ &dev_attr_dock.attr,
+ &dev_attr_radios.attr,
NULL
};
static void dmi_check_cb_common(const struct dmi_system_id *id)
{
acpi_handle handle;
- int have_blnf;
printk(KERN_INFO "fujitsu-laptop: Identified laptop model '%s'.\n",
id->ident);
- have_blnf = ACPI_SUCCESS
- (acpi_get_handle(NULL, "\\_SB.PCI0.GFX0.LCD.BLNF", &handle));
if (use_alt_lcd_levels == -1) {
- vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detecting usealt\n");
- use_alt_lcd_levels = 1;
- }
- if (disable_brightness_keys == -1) {
- vdbg_printk(FUJLAPTOP_DBG_TRACE,
- "auto-detecting disable_keys\n");
- disable_brightness_keys = have_blnf ? 1 : 0;
- }
- if (disable_brightness_adjust == -1) {
- vdbg_printk(FUJLAPTOP_DBG_TRACE,
- "auto-detecting disable_adjust\n");
- disable_brightness_adjust = have_blnf ? 0 : 1;
+ if (ACPI_SUCCESS(acpi_get_handle(NULL,
+ "\\_SB.PCI0.LPCB.FJEX.SBL2", &handle)))
+ use_alt_lcd_levels = 1;
+ else
+ use_alt_lcd_levels = 0;
+ vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detected usealt as "
+ "%i\n", use_alt_lcd_levels);
}
}
/* do config (detect defaults) */
use_alt_lcd_levels = use_alt_lcd_levels == 1 ? 1 : 0;
- disable_brightness_keys = disable_brightness_keys == 1 ? 1 : 0;
disable_brightness_adjust = disable_brightness_adjust == 1 ? 1 : 0;
vdbg_printk(FUJLAPTOP_DBG_INFO,
- "config: [alt interface: %d], [key disable: %d], [adjust disable: %d]\n",
- use_alt_lcd_levels, disable_brightness_keys,
- disable_brightness_adjust);
+ "config: [alt interface: %d], [adjust disable: %d]\n",
+ use_alt_lcd_levels, disable_brightness_adjust);
if (get_max_brightness() <= 0)
fujitsu->max_brightness = FUJITSU_LCD_N_LEVELS;
- if (use_alt_lcd_levels)
- get_lcd_level_alt();
- else
- get_lcd_level();
+ get_lcd_level();
return result;
case ACPI_FUJITSU_NOTIFY_CODE1:
keycode = 0;
oldb = fujitsu->brightness_level;
- get_lcd_level(); /* the alt version always yields changed */
+ get_lcd_level();
newb = fujitsu->brightness_level;
vdbg_printk(FUJLAPTOP_DBG_TRACE,
"brightness button event [%i -> %i (%i)]\n",
oldb, newb, fujitsu->brightness_changed);
- if (oldb == newb && fujitsu->brightness_changed) {
- keycode = 0;
- if (disable_brightness_keys != 1) {
- if (oldb == 0) {
- acpi_bus_generate_proc_event
- (fujitsu->dev,
- ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS,
- 0);
- keycode = KEY_BRIGHTNESSDOWN;
- } else if (oldb ==
- (fujitsu->max_brightness) - 1) {
- acpi_bus_generate_proc_event
- (fujitsu->dev,
- ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS,
- 0);
- keycode = KEY_BRIGHTNESSUP;
- }
- }
- } else if (oldb < newb) {
+ if (oldb < newb) {
if (disable_brightness_adjust != 1) {
if (use_alt_lcd_levels)
set_lcd_level_alt(newb);
else
set_lcd_level(newb);
}
- if (disable_brightness_keys != 1) {
- acpi_bus_generate_proc_event(fujitsu->dev,
- ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS, 0);
- keycode = KEY_BRIGHTNESSUP;
- }
+ acpi_bus_generate_proc_event(fujitsu->dev,
+ ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS, 0);
+ keycode = KEY_BRIGHTNESSUP;
} else if (oldb > newb) {
if (disable_brightness_adjust != 1) {
if (use_alt_lcd_levels)
else
set_lcd_level(newb);
}
- if (disable_brightness_keys != 1) {
- acpi_bus_generate_proc_event(fujitsu->dev,
- ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS, 0);
- keycode = KEY_BRIGHTNESSDOWN;
- }
- } else {
- keycode = KEY_UNKNOWN;
+ acpi_bus_generate_proc_event(fujitsu->dev,
+ ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS, 0);
+ keycode = KEY_BRIGHTNESSDOWN;
}
break;
default:
input->id.bustype = BUS_HOST;
input->id.product = 0x06;
input->dev.parent = &device->dev;
- input->evbit[0] = BIT(EV_KEY);
+
+ set_bit(EV_KEY, input->evbit);
set_bit(fujitsu->keycode1, input->keybit);
set_bit(fujitsu->keycode2, input->keybit);
set_bit(fujitsu->keycode3, input->keybit);
printk(KERN_ERR "_INI Method failed\n");
}
- i = 0; /* Discard hotkey ringbuffer */
- while (get_irb() != 0 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) ;
+ i = 0;
+ while (call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0) != 0
+ && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE)
+ ; /* No action, result is discarded */
vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i);
+ fujitsu_hotkey->rfkill_state =
+ call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
+
+ /* Suspect this is a keymap of the application panel, print it */
+ printk(KERN_INFO "fujitsu-laptop: BTNI: [0x%x]\n",
+ call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0));
+
+ #ifdef CONFIG_LEDS_CLASS
+ if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
+ result = led_classdev_register(&fujitsu->pf_device->dev,
+ &logolamp_led);
+ if (result == 0) {
+ fujitsu_hotkey->logolamp_registered = 1;
+ } else {
+ printk(KERN_ERR "fujitsu-laptop: Could not register "
+ "LED handler for logo lamp, error %i\n", result);
+ }
+ }
+
+ if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) &&
+ (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) {
+ result = led_classdev_register(&fujitsu->pf_device->dev,
+ &kblamps_led);
+ if (result == 0) {
+ fujitsu_hotkey->kblamps_registered = 1;
+ } else {
+ printk(KERN_ERR "fujitsu-laptop: Could not register "
+ "LED handler for keyboard lamps, error %i\n", result);
+ }
+ }
+ #endif
+
return result;
end:
input = fujitsu_hotkey->input;
- vdbg_printk(FUJLAPTOP_DBG_TRACE, "Hotkey event\n");
+ fujitsu_hotkey->rfkill_state =
+ call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
switch (event) {
case ACPI_FUJITSU_NOTIFY_CODE1:
i = 0;
- while ((irb = get_irb()) != 0
- && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) {
- vdbg_printk(FUJLAPTOP_DBG_TRACE, "GIRB result [%x]\n",
- irb);
-
+ while ((irb =
+ call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0)) != 0
+ && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) {
switch (irb & 0x4ff) {
case KEY1_CODE:
keycode = fujitsu->keycode1;
goto fail_hotkey1;
}
+ /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */
+
+ if (!acpi_video_backlight_support()) {
+ if (call_fext_func(FUNC_BACKLIGHT, 0x2, 0x4, 0x0) == 3)
+ fujitsu->bl_device->props.power = 4;
+ else
+ fujitsu->bl_device->props.power = 0;
+ }
+
printk(KERN_INFO "fujitsu-laptop: driver " FUJITSU_DRIVER_VERSION
" successfully loaded.\n");
static void __exit fujitsu_cleanup(void)
{
+ #ifdef CONFIG_LEDS_CLASS
+ if (fujitsu_hotkey->logolamp_registered != 0)
+ led_classdev_unregister(&logolamp_led);
+
+ if (fujitsu_hotkey->kblamps_registered != 0)
+ led_classdev_unregister(&kblamps_led);
+ #endif
+
sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
&fujitsupf_attribute_group);
platform_device_unregister(fujitsu->pf_device);
module_param(use_alt_lcd_levels, uint, 0644);
MODULE_PARM_DESC(use_alt_lcd_levels,
"Use alternative interface for lcd_levels (needed for Lifebook s6410).");
-module_param(disable_brightness_keys, uint, 0644);
-MODULE_PARM_DESC(disable_brightness_keys,
- "Disable brightness keys (eg. if they are already handled by the generic ACPI_VIDEO device).");
module_param(disable_brightness_adjust, uint, 0644);
MODULE_PARM_DESC(disable_brightness_adjust, "Disable brightness adjustment .");
#ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
#endif
-MODULE_AUTHOR("Jonathan Woithe, Peter Gruber");
+MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon");
MODULE_DESCRIPTION("Fujitsu laptop extras support");
MODULE_VERSION(FUJITSU_DRIVER_VERSION);
MODULE_LICENSE("GPL");
MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*");
+MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*");
MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*");
static struct pnp_device_id pnp_ids[] = {
};
acpi_status status = AE_OK;
- ACPI_FUNCTION_TRACE("acpi_pcc_write_sset");
-
status = acpi_evaluate_object(pcc->handle, METHOD_HKEY_SSET,
¶ms, NULL);
unsigned long long s;
acpi_status status;
- ACPI_FUNCTION_TRACE("acpi_pcc_get_sqty");
-
status = acpi_evaluate_integer(device->handle, METHOD_HKEY_SQTY,
NULL, &s);
if (ACPI_SUCCESS(status))
union acpi_object *hkey = NULL;
int i;
- ACPI_FUNCTION_TRACE("acpi_pcc_retrieve_biosdata");
-
status = acpi_evaluate_object(pcc->handle, METHOD_HKEY_SINF, 0,
&buffer);
if (ACPI_FAILURE(status)) {
int key_code, hkey_num;
unsigned long long result;
- ACPI_FUNCTION_TRACE("acpi_pcc_generate_keyinput");
-
rc = acpi_evaluate_integer(pcc->handle, METHOD_HKEY_QUERY,
NULL, &result);
if (!ACPI_SUCCESS(rc)) {
{
struct pcc_acpi *pcc = (struct pcc_acpi *) data;
- ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_notify");
-
switch (event) {
case HKEY_NOTIFY:
acpi_pcc_generate_keyinput(pcc);
{
int i, rc;
- ACPI_FUNCTION_TRACE("acpi_pcc_init_input");
-
pcc->input_dev = input_allocate_device();
if (!pcc->input_dev) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
struct pcc_acpi *pcc = acpi_driver_data(device);
acpi_status status = AE_OK;
- ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_resume");
-
if (device == NULL || pcc == NULL)
return -EINVAL;
struct pcc_acpi *pcc;
int num_sifr, result;
- ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_add");
-
if (!device)
return -EINVAL;
{
int result = 0;
- ACPI_FUNCTION_TRACE("acpi_pcc_init");
-
if (acpi_disabled)
return -ENODEV;
{
struct pcc_acpi *pcc = acpi_driver_data(device);
- ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_remove");
-
if (!device || !pcc)
return -EINVAL;
static void __exit acpi_pcc_exit(void)
{
- ACPI_FUNCTION_TRACE("acpi_pcc_exit");
-
acpi_bus_unregister_driver(&acpi_pcc_driver);
}
static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
void *context, void **return_value)
{
- struct acpi_namespace_node *node;
- union acpi_operand_object *operand;
+ struct acpi_device_info *info;
+ struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
- node = (struct acpi_namespace_node *)handle;
- operand = (union acpi_operand_object *)node->object;
+ if (ACPI_SUCCESS(acpi_get_object_info(handle, &buffer))) {
+ info = buffer.pointer;
- printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii,
- (u32) operand->method.param_count);
+ printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n",
+ (char *)&info->name, info->param_count);
+
+ kfree(buffer.pointer);
+ }
return AE_OK;
}
#include <linux/init.h>
#include <linux/types.h>
#include <acpi/acpi.h>
-#include <acpi/actypes.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#include <linux/platform_device.h>
#include <linux/workqueue.h>
#include <acpi/acpi_drivers.h>
-#include <acpi/acnamesp.h>
#include <linux/pci_ids.h>
#include <linux/pnp.h>
#include <linux/mod_devicetable.h>
#include <acpi/acpi_bus.h>
-#include <acpi/actypes.h>
#include "../base.h"
#include "pnpacpi.h"
static int parisc_set_time(struct device *dev, struct rtc_time *tm)
{
struct parisc_rtc *p = dev_get_drvdata(dev);
- unsigned long flags, ret;
+ unsigned long flags;
+ int ret;
spin_lock_irqsave(&p->lock, flags);
ret = set_rtc_time(tm);
#define BIT_DIVIDER_MIPS 1043
-static int bits_mips[8] = { 277,249,290,267,229,341,212,241}; /* mips32 */
-
-#include <linux/errno.h>
+static int bits_mips[8] = { 277, 249, 290, 267, 229, 341, 212, 241};
struct pushpull {
unsigned char *buf;
int bits[8];
};
-static inline void init_pushpull(struct pushpull *pp, char *buf, unsigned buflen, unsigned ofs, unsigned reserve)
+static inline void init_pushpull(struct pushpull *pp, char *buf,
+ unsigned buflen, unsigned ofs,
+ unsigned reserve)
{
pp->buf = buf;
pp->buflen = buflen;
static inline int pushbit(struct pushpull *pp, int bit, int use_reserved)
{
- if (pp->ofs >= pp->buflen - (use_reserved?0:pp->reserve)) {
+ if (pp->ofs >= pp->buflen - (use_reserved?0:pp->reserve))
return -ENOSPC;
- }
- if (bit) {
- pp->buf[pp->ofs >> 3] |= (1<<(7-(pp->ofs &7)));
- }
- else {
- pp->buf[pp->ofs >> 3] &= ~(1<<(7-(pp->ofs &7)));
- }
+ if (bit)
+ pp->buf[pp->ofs >> 3] |= (1<<(7-(pp->ofs & 7)));
+ else
+ pp->buf[pp->ofs >> 3] &= ~(1<<(7-(pp->ofs & 7)));
+
pp->ofs++;
return 0;
rs->p = (long) (2 * UPPER_BIT_RUBIN);
rs->bit_number = (long) 0;
rs->bit_divider = div;
+
for (c=0; c<8; c++)
rs->bits[c] = bits[c];
}
long i0, i1;
int ret;
- while ((rs->q >= UPPER_BIT_RUBIN) || ((rs->p + rs->q) <= UPPER_BIT_RUBIN)) {
+ while ((rs->q >= UPPER_BIT_RUBIN) ||
+ ((rs->p + rs->q) <= UPPER_BIT_RUBIN)) {
rs->bit_number++;
ret = pushbit(&rs->pp, (rs->q & UPPER_BIT_RUBIN) ? 1 : 0, 0);
rs->p <<= 1;
}
i0 = A * rs->p / (A + B);
- if (i0 <= 0) {
+ if (i0 <= 0)
i0 = 1;
- }
- if (i0 >= rs->p) {
+
+ if (i0 >= rs->p)
i0 = rs->p - 1;
- }
+
i1 = rs->p - i0;
if (symbol == 0)
/* behalve lower */
rs->rec_q = 0;
- for (rs->bit_number = 0; rs->bit_number++ < RUBIN_REG_SIZE; rs->rec_q = rs->rec_q * 2 + (long) (pullbit(&rs->pp)))
+ for (rs->bit_number = 0; rs->bit_number++ < RUBIN_REG_SIZE;
+ rs->rec_q = rs->rec_q * 2 + (long) (pullbit(&rs->pp)))
;
}
-static void __do_decode(struct rubin_state *rs, unsigned long p, unsigned long q)
+static void __do_decode(struct rubin_state *rs, unsigned long p,
+ unsigned long q)
{
register unsigned long lower_bits_rubin = LOWER_BITS_RUBIN;
unsigned long rec_q;
__do_decode(rs, p, q);
i0 = A * rs->p / (A + B);
- if (i0 <= 0) {
+ if (i0 <= 0)
i0 = 1;
- }
- if (i0 >= rs->p) {
+
+ if (i0 >= rs->p)
i0 = rs->p - 1;
- }
threshold = rs->q + i0;
symbol = rs->rec_q >= threshold;
struct rubin_state rs_copy;
rs_copy = *rs;
- for (i=0;i<8;i++) {
- ret = encode(rs, rs->bit_divider-rs->bits[i],rs->bits[i],byte&1);
+ for (i=0; i<8; i++) {
+ ret = encode(rs, rs->bit_divider-rs->bits[i],
+ rs->bits[i], byte & 1);
if (ret) {
/* Failed. Restore old state */
*rs = rs_copy;
return ret;
}
- byte=byte>>1;
+ byte >>= 1 ;
}
return 0;
}
int i, result = 0, bit_divider = rs->bit_divider;
for (i = 0; i < 8; i++)
- result |= decode(rs, bit_divider - rs->bits[i], rs->bits[i]) << i;
+ result |= decode(rs, bit_divider - rs->bits[i],
+ rs->bits[i]) << i;
return result;
}
static int rubin_do_compress(int bit_divider, int *bits, unsigned char *data_in,
- unsigned char *cpage_out, uint32_t *sourcelen, uint32_t *dstlen)
+ unsigned char *cpage_out, uint32_t *sourcelen,
+ uint32_t *dstlen)
{
int outpos = 0;
int pos=0;
int jffs2_rubinmips_compress(unsigned char *data_in, unsigned char *cpage_out,
uint32_t *sourcelen, uint32_t *dstlen, void *model)
{
- return rubin_do_compress(BIT_DIVIDER_MIPS, bits_mips, data_in, cpage_out, sourcelen, dstlen);
+ return rubin_do_compress(BIT_DIVIDER_MIPS, bits_mips, data_in,
+ cpage_out, sourcelen, dstlen);
}
#endif
static int jffs2_dynrubin_compress(unsigned char *data_in,
return -1;
memset(histo, 0, 256);
- for (i=0; i<mysrclen; i++) {
+ for (i=0; i<mysrclen; i++)
histo[data_in[i]]++;
- }
memset(bits, 0, sizeof(int)*8);
for (i=0; i<256; i++) {
if (i&128)
cpage_out[i] = bits[i];
}
- ret = rubin_do_compress(256, bits, data_in, cpage_out+8, &mysrclen, &mydstlen);
+ ret = rubin_do_compress(256, bits, data_in, cpage_out+8, &mysrclen,
+ &mydstlen);
if (ret)
return ret;
return 0;
}
-static void rubin_do_decompress(int bit_divider, int *bits, unsigned char *cdata_in,
- unsigned char *page_out, uint32_t srclen, uint32_t destlen)
+static void rubin_do_decompress(int bit_divider, int *bits,
+ unsigned char *cdata_in,
+ unsigned char *page_out, uint32_t srclen,
+ uint32_t destlen)
{
int outpos = 0;
struct rubin_state rs;
init_pushpull(&rs.pp, cdata_in, srclen, 0, 0);
init_decode(&rs, bit_divider, bits);
- while (outpos < destlen) {
+ while (outpos < destlen)
page_out[outpos++] = in_byte(&rs);
- }
}
uint32_t sourcelen, uint32_t dstlen,
void *model)
{
- rubin_do_decompress(BIT_DIVIDER_MIPS, bits_mips, data_in, cpage_out, sourcelen, dstlen);
+ rubin_do_decompress(BIT_DIVIDER_MIPS, bits_mips, data_in,
+ cpage_out, sourcelen, dstlen);
return 0;
}
for (c=0; c<8; c++)
bits[c] = data_in[c];
- rubin_do_decompress(256, bits, data_in+8, cpage_out, sourcelen-8, dstlen);
+ rubin_do_decompress(256, bits, data_in+8, cpage_out, sourcelen-8,
+ dstlen);
return 0;
}
static struct jffs2_compressor jffs2_rubinmips_comp = {
- .priority = JFFS2_RUBINMIPS_PRIORITY,
- .name = "rubinmips",
- .compr = JFFS2_COMPR_DYNRUBIN,
- .compress = NULL, /*&jffs2_rubinmips_compress,*/
- .decompress = &jffs2_rubinmips_decompress,
+ .priority = JFFS2_RUBINMIPS_PRIORITY,
+ .name = "rubinmips",
+ .compr = JFFS2_COMPR_DYNRUBIN,
+ .compress = NULL, /*&jffs2_rubinmips_compress,*/
+ .decompress = &jffs2_rubinmips_decompress,
#ifdef JFFS2_RUBINMIPS_DISABLED
- .disabled = 1,
+ .disabled = 1,
#else
- .disabled = 0,
+ .disabled = 0,
#endif
};
int jffs2_rubinmips_init(void)
{
- return jffs2_register_compressor(&jffs2_rubinmips_comp);
+ return jffs2_register_compressor(&jffs2_rubinmips_comp);
}
void jffs2_rubinmips_exit(void)
{
- jffs2_unregister_compressor(&jffs2_rubinmips_comp);
+ jffs2_unregister_compressor(&jffs2_rubinmips_comp);
}
static struct jffs2_compressor jffs2_dynrubin_comp = {
- .priority = JFFS2_DYNRUBIN_PRIORITY,
- .name = "dynrubin",
- .compr = JFFS2_COMPR_RUBINMIPS,
- .compress = jffs2_dynrubin_compress,
- .decompress = &jffs2_dynrubin_decompress,
+ .priority = JFFS2_DYNRUBIN_PRIORITY,
+ .name = "dynrubin",
+ .compr = JFFS2_COMPR_RUBINMIPS,
+ .compress = jffs2_dynrubin_compress,
+ .decompress = &jffs2_dynrubin_decompress,
#ifdef JFFS2_DYNRUBIN_DISABLED
- .disabled = 1,
+ .disabled = 1,
#else
- .disabled = 0,
+ .disabled = 0,
#endif
};
int jffs2_dynrubin_init(void)
{
- return jffs2_register_compressor(&jffs2_dynrubin_comp);
+ return jffs2_register_compressor(&jffs2_dynrubin_comp);
}
void jffs2_dynrubin_exit(void)
{
- jffs2_unregister_compressor(&jffs2_dynrubin_comp);
+ jffs2_unregister_compressor(&jffs2_dynrubin_comp);
}
{
/* For NAND, if the failure did not occur at the device level for a
specific physical page, don't bother updating the bad block table. */
- if (jffs2_cleanmarker_oob(c) && (bad_offset != MTD_FAIL_ADDR_UNKNOWN)) {
+ if (jffs2_cleanmarker_oob(c) && (bad_offset != (uint32_t)MTD_FAIL_ADDR_UNKNOWN)) {
/* We had a device-level failure to erase. Let's see if we've
failed too many times. */
if (!jffs2_write_nand_badblock(c, jeb, bad_offset)) {
struct erase_priv_struct *priv = (void *)instr->priv;
if(instr->state != MTD_ERASE_DONE) {
- printk(KERN_WARNING "Erase at 0x%08x finished, but state != MTD_ERASE_DONE. State is 0x%x instead.\n", instr->addr, instr->state);
+ printk(KERN_WARNING "Erase at 0x%08llx finished, but state != MTD_ERASE_DONE. State is 0x%x instead.\n",
+ (unsigned long long)instr->addr, instr->state);
jffs2_erase_failed(priv->c, priv->jeb, instr->fail_addr);
} else {
jffs2_erase_succeeded(priv->c, priv->jeb);
+++ /dev/null
-/******************************************************************************
- *
- * Name: acdisasm.h - AML disassembler
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#ifndef __ACDISASM_H__
-#define __ACDISASM_H__
-
-#include "amlresrc.h"
-
-#define BLOCK_NONE 0
-#define BLOCK_PAREN 1
-#define BLOCK_BRACE 2
-#define BLOCK_COMMA_LIST 4
-#define ACPI_DEFAULT_RESNAME *(u32 *) "__RD"
-
-struct acpi_external_list {
- char *path;
- char *internal_path;
- struct acpi_external_list *next;
- u32 value;
- u16 length;
- u8 type;
-};
-
-extern struct acpi_external_list *acpi_gbl_external_list;
-
-typedef const struct acpi_dmtable_info {
- u8 opcode;
- u8 offset;
- char *name;
-
-} acpi_dmtable_info;
-
-/*
- * Values for Opcode above.
- * Note: 0-7 must not change, used as a flag shift value
- */
-#define ACPI_DMT_FLAG0 0
-#define ACPI_DMT_FLAG1 1
-#define ACPI_DMT_FLAG2 2
-#define ACPI_DMT_FLAG3 3
-#define ACPI_DMT_FLAG4 4
-#define ACPI_DMT_FLAG5 5
-#define ACPI_DMT_FLAG6 6
-#define ACPI_DMT_FLAG7 7
-#define ACPI_DMT_FLAGS0 8
-#define ACPI_DMT_FLAGS2 9
-#define ACPI_DMT_UINT8 10
-#define ACPI_DMT_UINT16 11
-#define ACPI_DMT_UINT24 12
-#define ACPI_DMT_UINT32 13
-#define ACPI_DMT_UINT56 14
-#define ACPI_DMT_UINT64 15
-#define ACPI_DMT_STRING 16
-#define ACPI_DMT_NAME4 17
-#define ACPI_DMT_NAME6 18
-#define ACPI_DMT_NAME8 19
-#define ACPI_DMT_CHKSUM 20
-#define ACPI_DMT_SPACEID 21
-#define ACPI_DMT_GAS 22
-#define ACPI_DMT_ASF 23
-#define ACPI_DMT_DMAR 24
-#define ACPI_DMT_HEST 25
-#define ACPI_DMT_HESTNTFY 26
-#define ACPI_DMT_HESTNTYP 27
-#define ACPI_DMT_MADT 28
-#define ACPI_DMT_SRAT 29
-#define ACPI_DMT_EXIT 30
-#define ACPI_DMT_SIG 31
-
-typedef
-void (*acpi_dmtable_handler) (struct acpi_table_header * table);
-
-struct acpi_dmtable_data {
- char *signature;
- struct acpi_dmtable_info *table_info;
- acpi_dmtable_handler table_handler;
- char *name;
-};
-
-struct acpi_op_walk_info {
- u32 level;
- u32 last_level;
- u32 count;
- u32 bit_offset;
- u32 flags;
- struct acpi_walk_state *walk_state;
-};
-
-typedef
-acpi_status(*asl_walk_callback) (union acpi_parse_object * op,
- u32 level, void *context);
-
-struct acpi_resource_tag {
- u32 bit_index;
- char *tag;
-};
-
-/* Strings used for decoding flags to ASL keywords */
-
-extern const char *acpi_gbl_word_decode[];
-extern const char *acpi_gbl_irq_decode[];
-extern const char *acpi_gbl_lock_rule[];
-extern const char *acpi_gbl_access_types[];
-extern const char *acpi_gbl_update_rules[];
-extern const char *acpi_gbl_match_ops[];
-
-extern struct acpi_dmtable_info acpi_dm_table_info_asf0[];
-extern struct acpi_dmtable_info acpi_dm_table_info_asf1[];
-extern struct acpi_dmtable_info acpi_dm_table_info_asf1a[];
-extern struct acpi_dmtable_info acpi_dm_table_info_asf2[];
-extern struct acpi_dmtable_info acpi_dm_table_info_asf2a[];
-extern struct acpi_dmtable_info acpi_dm_table_info_asf3[];
-extern struct acpi_dmtable_info acpi_dm_table_info_asf4[];
-extern struct acpi_dmtable_info acpi_dm_table_info_asf_hdr[];
-extern struct acpi_dmtable_info acpi_dm_table_info_boot[];
-extern struct acpi_dmtable_info acpi_dm_table_info_bert[];
-extern struct acpi_dmtable_info acpi_dm_table_info_cpep[];
-extern struct acpi_dmtable_info acpi_dm_table_info_cpep0[];
-extern struct acpi_dmtable_info acpi_dm_table_info_dbgp[];
-extern struct acpi_dmtable_info acpi_dm_table_info_dmar[];
-extern struct acpi_dmtable_info acpi_dm_table_info_dmar_hdr[];
-extern struct acpi_dmtable_info acpi_dm_table_info_dmar_scope[];
-extern struct acpi_dmtable_info acpi_dm_table_info_dmar0[];
-extern struct acpi_dmtable_info acpi_dm_table_info_dmar1[];
-extern struct acpi_dmtable_info acpi_dm_table_info_dmar2[];
-extern struct acpi_dmtable_info acpi_dm_table_info_ecdt[];
-extern struct acpi_dmtable_info acpi_dm_table_info_einj[];
-extern struct acpi_dmtable_info acpi_dm_table_info_einj0[];
-extern struct acpi_dmtable_info acpi_dm_table_info_erst[];
-extern struct acpi_dmtable_info acpi_dm_table_info_facs[];
-extern struct acpi_dmtable_info acpi_dm_table_info_fadt1[];
-extern struct acpi_dmtable_info acpi_dm_table_info_fadt2[];
-extern struct acpi_dmtable_info acpi_dm_table_info_gas[];
-extern struct acpi_dmtable_info acpi_dm_table_info_header[];
-extern struct acpi_dmtable_info acpi_dm_table_info_hest[];
-extern struct acpi_dmtable_info acpi_dm_table_info_hest9[];
-extern struct acpi_dmtable_info acpi_dm_table_info_hest_notify[];
-extern struct acpi_dmtable_info acpi_dm_table_info_hpet[];
-extern struct acpi_dmtable_info acpi_dm_table_info_madt[];
-extern struct acpi_dmtable_info acpi_dm_table_info_madt0[];
-extern struct acpi_dmtable_info acpi_dm_table_info_madt1[];
-extern struct acpi_dmtable_info acpi_dm_table_info_madt2[];
-extern struct acpi_dmtable_info acpi_dm_table_info_madt3[];
-extern struct acpi_dmtable_info acpi_dm_table_info_madt4[];
-extern struct acpi_dmtable_info acpi_dm_table_info_madt5[];
-extern struct acpi_dmtable_info acpi_dm_table_info_madt6[];
-extern struct acpi_dmtable_info acpi_dm_table_info_madt7[];
-extern struct acpi_dmtable_info acpi_dm_table_info_madt8[];
-extern struct acpi_dmtable_info acpi_dm_table_info_madt9[];
-extern struct acpi_dmtable_info acpi_dm_table_info_madt10[];
-extern struct acpi_dmtable_info acpi_dm_table_info_madt_hdr[];
-extern struct acpi_dmtable_info acpi_dm_table_info_mcfg[];
-extern struct acpi_dmtable_info acpi_dm_table_info_mcfg0[];
-extern struct acpi_dmtable_info acpi_dm_table_info_rsdp1[];
-extern struct acpi_dmtable_info acpi_dm_table_info_rsdp2[];
-extern struct acpi_dmtable_info acpi_dm_table_info_sbst[];
-extern struct acpi_dmtable_info acpi_dm_table_info_slic[];
-extern struct acpi_dmtable_info acpi_dm_table_info_slit[];
-extern struct acpi_dmtable_info acpi_dm_table_info_spcr[];
-extern struct acpi_dmtable_info acpi_dm_table_info_spmi[];
-extern struct acpi_dmtable_info acpi_dm_table_info_srat[];
-extern struct acpi_dmtable_info acpi_dm_table_info_srat_hdr[];
-extern struct acpi_dmtable_info acpi_dm_table_info_srat0[];
-extern struct acpi_dmtable_info acpi_dm_table_info_srat1[];
-extern struct acpi_dmtable_info acpi_dm_table_info_srat2[];
-extern struct acpi_dmtable_info acpi_dm_table_info_tcpa[];
-extern struct acpi_dmtable_info acpi_dm_table_info_wdrt[];
-
-/*
- * dmtable
- */
-void acpi_dm_dump_data_table(struct acpi_table_header *table);
-
-acpi_status
-acpi_dm_dump_table(u32 table_length,
- u32 table_offset,
- void *table,
- u32 sub_table_length, struct acpi_dmtable_info *info);
-
-void acpi_dm_line_header(u32 offset, u32 byte_length, char *name);
-
-void acpi_dm_line_header2(u32 offset, u32 byte_length, char *name, u32 value);
-
-/*
- * dmtbdump
- */
-void acpi_dm_dump_asf(struct acpi_table_header *table);
-
-void acpi_dm_dump_cpep(struct acpi_table_header *table);
-
-void acpi_dm_dump_dmar(struct acpi_table_header *table);
-
-void acpi_dm_dump_einj(struct acpi_table_header *table);
-
-void acpi_dm_dump_erst(struct acpi_table_header *table);
-
-void acpi_dm_dump_fadt(struct acpi_table_header *table);
-
-void acpi_dm_dump_hest(struct acpi_table_header *table);
-
-void acpi_dm_dump_mcfg(struct acpi_table_header *table);
-
-void acpi_dm_dump_madt(struct acpi_table_header *table);
-
-u32 acpi_dm_dump_rsdp(struct acpi_table_header *table);
-
-void acpi_dm_dump_rsdt(struct acpi_table_header *table);
-
-void acpi_dm_dump_slit(struct acpi_table_header *table);
-
-void acpi_dm_dump_srat(struct acpi_table_header *table);
-
-void acpi_dm_dump_xsdt(struct acpi_table_header *table);
-
-/*
- * dmwalk
- */
-void
-acpi_dm_disassemble(struct acpi_walk_state *walk_state,
- union acpi_parse_object *origin, u32 num_opcodes);
-
-void
-acpi_dm_walk_parse_tree(union acpi_parse_object *op,
- asl_walk_callback descending_callback,
- asl_walk_callback ascending_callback, void *context);
-
-/*
- * dmopcode
- */
-void
-acpi_dm_disassemble_one_op(struct acpi_walk_state *walk_state,
- struct acpi_op_walk_info *info,
- union acpi_parse_object *op);
-
-void acpi_dm_decode_internal_object(union acpi_operand_object *obj_desc);
-
-u32 acpi_dm_list_type(union acpi_parse_object *op);
-
-void acpi_dm_method_flags(union acpi_parse_object *op);
-
-void acpi_dm_field_flags(union acpi_parse_object *op);
-
-void acpi_dm_address_space(u8 space_id);
-
-void acpi_dm_region_flags(union acpi_parse_object *op);
-
-void acpi_dm_match_op(union acpi_parse_object *op);
-
-u8 acpi_dm_comma_if_list_member(union acpi_parse_object *op);
-
-void acpi_dm_comma_if_field_member(union acpi_parse_object *op);
-
-/*
- * dmnames
- */
-u32 acpi_dm_dump_name(char *name);
-
-acpi_status
-acpi_ps_display_object_pathname(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op);
-
-void acpi_dm_namestring(char *name);
-
-/*
- * dmobject
- */
-void
-acpi_dm_display_internal_object(union acpi_operand_object *obj_desc,
- struct acpi_walk_state *walk_state);
-
-void acpi_dm_display_arguments(struct acpi_walk_state *walk_state);
-
-void acpi_dm_display_locals(struct acpi_walk_state *walk_state);
-
-void
-acpi_dm_dump_method_info(acpi_status status,
- struct acpi_walk_state *walk_state,
- union acpi_parse_object *op);
-
-/*
- * dmbuffer
- */
-void acpi_dm_disasm_byte_list(u32 level, u8 * byte_data, u32 byte_count);
-
-void
-acpi_dm_byte_list(struct acpi_op_walk_info *info, union acpi_parse_object *op);
-
-void acpi_dm_is_eisa_id(union acpi_parse_object *op);
-
-void acpi_dm_eisa_id(u32 encoded_id);
-
-u8 acpi_dm_is_unicode_buffer(union acpi_parse_object *op);
-
-u8 acpi_dm_is_string_buffer(union acpi_parse_object *op);
-
-/*
- * dmresrc
- */
-void acpi_dm_dump_integer8(u8 value, char *name);
-
-void acpi_dm_dump_integer16(u16 value, char *name);
-
-void acpi_dm_dump_integer32(u32 value, char *name);
-
-void acpi_dm_dump_integer64(u64 value, char *name);
-
-void
-acpi_dm_resource_template(struct acpi_op_walk_info *info,
- union acpi_parse_object *op,
- u8 * byte_data, u32 byte_count);
-
-acpi_status acpi_dm_is_resource_template(union acpi_parse_object *op);
-
-void acpi_dm_indent(u32 level);
-
-void acpi_dm_bit_list(u16 mask);
-
-void acpi_dm_decode_attribute(u8 attribute);
-
-void acpi_dm_descriptor_name(void);
-
-/*
- * dmresrcl
- */
-void
-acpi_dm_word_descriptor(union aml_resource *resource, u32 length, u32 level);
-
-void
-acpi_dm_dword_descriptor(union aml_resource *resource, u32 length, u32 level);
-
-void
-acpi_dm_extended_descriptor(union aml_resource *resource,
- u32 length, u32 level);
-
-void
-acpi_dm_qword_descriptor(union aml_resource *resource, u32 length, u32 level);
-
-void
-acpi_dm_memory24_descriptor(union aml_resource *resource,
- u32 length, u32 level);
-
-void
-acpi_dm_memory32_descriptor(union aml_resource *resource,
- u32 length, u32 level);
-
-void
-acpi_dm_fixed_memory32_descriptor(union aml_resource *resource,
- u32 length, u32 level);
-
-void
-acpi_dm_generic_register_descriptor(union aml_resource *resource,
- u32 length, u32 level);
-
-void
-acpi_dm_interrupt_descriptor(union aml_resource *resource,
- u32 length, u32 level);
-
-void
-acpi_dm_vendor_large_descriptor(union aml_resource *resource,
- u32 length, u32 level);
-
-void acpi_dm_vendor_common(char *name, u8 * byte_data, u32 length, u32 level);
-
-/*
- * dmresrcs
- */
-void
-acpi_dm_irq_descriptor(union aml_resource *resource, u32 length, u32 level);
-
-void
-acpi_dm_dma_descriptor(union aml_resource *resource, u32 length, u32 level);
-
-void acpi_dm_io_descriptor(union aml_resource *resource, u32 length, u32 level);
-
-void
-acpi_dm_fixed_io_descriptor(union aml_resource *resource,
- u32 length, u32 level);
-
-void
-acpi_dm_start_dependent_descriptor(union aml_resource *resource,
- u32 length, u32 level);
-
-void
-acpi_dm_end_dependent_descriptor(union aml_resource *resource,
- u32 length, u32 level);
-
-void
-acpi_dm_vendor_small_descriptor(union aml_resource *resource,
- u32 length, u32 level);
-
-/*
- * dmutils
- */
-void acpi_dm_add_to_external_list(char *path, u8 type, u32 value);
-
-/*
- * dmrestag
- */
-void acpi_dm_find_resources(union acpi_parse_object *root);
-
-void
-acpi_dm_check_resource_reference(union acpi_parse_object *op,
- struct acpi_walk_state *walk_state);
-
-#endif /* __ACDISASM_H__ */
#define AE_AML_CIRCULAR_REFERENCE (acpi_status) (0x001E | AE_CODE_AML)
#define AE_AML_BAD_RESOURCE_LENGTH (acpi_status) (0x001F | AE_CODE_AML)
#define AE_AML_ILLEGAL_ADDRESS (acpi_status) (0x0020 | AE_CODE_AML)
+#define AE_AML_INFINITE_LOOP (acpi_status) (0x0021 | AE_CODE_AML)
-#define AE_CODE_AML_MAX 0x0020
+#define AE_CODE_AML_MAX 0x0021
/*
* Internal exceptions used for control
#define AE_CODE_CTRL_MAX 0x000D
+/* Exception strings for acpi_format_exception */
+
#ifdef DEFINE_ACPI_GLOBALS
/*
"AE_AML_CIRCULAR_REFERENCE",
"AE_AML_BAD_RESOURCE_LENGTH",
"AE_AML_ILLEGAL_ADDRESS",
+ "AE_AML_INFINITE_LOOP"
};
char const *acpi_gbl_exception_names_ctrl[] = {
#define __ACOUTPUT_H__
/*
- * Debug levels and component IDs. These are used to control the
- * granularity of the output of the DEBUG_PRINT macro -- on a per-
- * component basis and a per-exception-type basis.
+ * Debug levels and component IDs. These are used to control the
+ * granularity of the output of the ACPI_DEBUG_PRINT macro -- on a
+ * per-component basis and a per-exception-type basis.
*/
/* Component IDs are used in the global "DebugLayer" */
#define ACPI_COMPILER 0x00001000
#define ACPI_TOOLS 0x00002000
+#define ACPI_EXAMPLE 0x00004000
+#define ACPI_DRIVER 0x00008000
-#define ACPI_ALL_COMPONENTS 0x00003FFF
+#define ACPI_ALL_COMPONENTS 0x0000FFFF
#define ACPI_COMPONENT_DEFAULT (ACPI_ALL_COMPONENTS)
/* Component IDs reserved for ACPI drivers */
#define ACPI_ALL_DRIVERS 0xFFFF0000
/*
- * Raw debug output levels, do not use these in the DEBUG_PRINT macros
+ * Raw debug output levels, do not use these in the ACPI_DEBUG_PRINT macros
*/
#define ACPI_LV_INIT 0x00000001
#define ACPI_LV_DEBUG_OBJECT 0x00000002
#define ACPI_NORMAL_DEFAULT (ACPI_LV_INIT | ACPI_LV_DEBUG_OBJECT)
#define ACPI_DEBUG_ALL (ACPI_LV_AML_DISASSEMBLE | ACPI_LV_ALL_EXCEPTIONS | ACPI_LV_ALL)
+#if defined (ACPI_DEBUG_OUTPUT) || !defined (ACPI_NO_ERROR_MESSAGES)
+/*
+ * Module name is included in both debug and non-debug versions primarily for
+ * error messages. The __FILE__ macro is not very useful for this, because it
+ * often includes the entire pathname to the module
+ */
+#define ACPI_MODULE_NAME(name) static const char ACPI_UNUSED_VAR _acpi_module_name[] = name;
+#else
+#define ACPI_MODULE_NAME(name)
+#endif
+
+/*
+ * Ascii error messages can be configured out
+ */
+#ifndef ACPI_NO_ERROR_MESSAGES
+#define AE_INFO _acpi_module_name, __LINE__
+
+/*
+ * Error reporting. Callers module and line number are inserted by AE_INFO,
+ * the plist contains a set of parens to allow variable-length lists.
+ * These macros are used for both the debug and non-debug versions of the code.
+ */
+#define ACPI_INFO(plist) acpi_info plist
+#define ACPI_WARNING(plist) acpi_warning plist
+#define ACPI_EXCEPTION(plist) acpi_exception plist
+#define ACPI_ERROR(plist) acpi_error plist
+
+#else
+
+/* No error messages */
+
+#define ACPI_INFO(plist)
+#define ACPI_WARNING(plist)
+#define ACPI_EXCEPTION(plist)
+#define ACPI_ERROR(plist)
+
+#endif /* ACPI_NO_ERROR_MESSAGES */
+
+/*
+ * Debug macros that are conditionally compiled
+ */
+#ifdef ACPI_DEBUG_OUTPUT
+
+/*
+ * If ACPI_GET_FUNCTION_NAME was not defined in the compiler-dependent header,
+ * define it now. This is the case where there the compiler does not support
+ * a __FUNCTION__ macro or equivalent.
+ */
+#ifndef ACPI_GET_FUNCTION_NAME
+#define ACPI_GET_FUNCTION_NAME _acpi_function_name
+
+/*
+ * The Name parameter should be the procedure name as a quoted string.
+ * The function name is also used by the function exit macros below.
+ * Note: (const char) is used to be compatible with the debug interfaces
+ * and macros such as __FUNCTION__.
+ */
+#define ACPI_FUNCTION_NAME(name) static const char _acpi_function_name[] = #name;
+
+#else
+/* Compiler supports __FUNCTION__ (or equivalent) -- Ignore this macro */
+
+#define ACPI_FUNCTION_NAME(name)
+#endif /* ACPI_GET_FUNCTION_NAME */
+
+/*
+ * Common parameters used for debug output functions:
+ * line number, function name, module(file) name, component ID
+ */
+#define ACPI_DEBUG_PARAMETERS __LINE__, ACPI_GET_FUNCTION_NAME, _acpi_module_name, _COMPONENT
+
+/*
+ * Master debug print macros
+ * Print message if and only if:
+ * 1) Debug print for the current component is enabled
+ * 2) Debug error level or trace level for the print statement is enabled
+ */
+#define ACPI_DEBUG_PRINT(plist) acpi_debug_print plist
+#define ACPI_DEBUG_PRINT_RAW(plist) acpi_debug_print_raw plist
+
+#else
+/*
+ * This is the non-debug case -- make everything go away,
+ * leaving no executable debug code!
+ */
+#define ACPI_FUNCTION_NAME(a)
+#define ACPI_DEBUG_PRINT(pl)
+#define ACPI_DEBUG_PRINT_RAW(pl)
+
+#endif /* ACPI_DEBUG_OUTPUT */
+
#endif /* __ACOUTPUT_H__ */
/******************************************************************************
*
- * Name: acpi.h - Master include file, Publics and external data.
+ * Name: acpi.h - Master public include file used to interface to ACPICA
*
*****************************************************************************/
#define __ACPI_H__
/*
- * Common includes for all ACPI driver files
- * We put them here because we don't want to duplicate them
- * in the rest of the source code again and again.
+ * Public include files for use by code that will interface to ACPICA.
+ *
+ * Information includes the ACPICA data types, names, exceptions, and
+ * external interface prototypes. Also included are the definitions for
+ * all ACPI tables (FADT, MADT, etc.)
+ *
+ * Note: The order of these include files is important.
*/
-#include "acnames.h" /* Global ACPI names and strings */
-#include "acconfig.h" /* Configuration constants */
-#include "platform/acenv.h" /* Target environment specific items */
-#include "actypes.h" /* Fundamental common data types */
-#include "acexcep.h" /* ACPI exception codes */
-#include "acmacros.h" /* C macros */
+#include "platform/acenv.h" /* Environment-specific items */
+#include "acnames.h" /* Common ACPI names and strings */
+#include "actypes.h" /* ACPICA data types and structures */
+#include "acexcep.h" /* ACPICA exceptions */
#include "actbl.h" /* ACPI table definitions */
-#include "aclocal.h" /* Internal data types */
#include "acoutput.h" /* Error output and Debug macros */
-#include "acpiosxf.h" /* Interfaces to the ACPI-to-OS layer */
+#include "acrestyp.h" /* Resource Descriptor structs */
+#include "acpiosxf.h" /* OSL interfaces (ACPICA-to-OS) */
#include "acpixf.h" /* ACPI core subsystem external interfaces */
-#include "acobject.h" /* ACPI internal object */
-#include "acstruct.h" /* Common structures */
-#include "acglobal.h" /* All global variables */
-#include "achware.h" /* Hardware defines and interfaces */
-#include "acutils.h" /* Utility interfaces */
#endif /* __ACPI_H__ */
acpi_status acpi_os_signal_semaphore(acpi_semaphore handle, u32 units);
/*
- * Mutex primitives
+ * Mutex primitives. May be configured to use semaphores instead via
+ * ACPI_MUTEX_TYPE (see platform/acenv.h)
*/
+#if (ACPI_MUTEX_TYPE != ACPI_BINARY_SEMAPHORE)
+
acpi_status acpi_os_create_mutex(acpi_mutex * out_handle);
void acpi_os_delete_mutex(acpi_mutex handle);
acpi_status acpi_os_acquire_mutex(acpi_mutex handle, u16 timeout);
void acpi_os_release_mutex(acpi_mutex handle);
-
-/* Temporary macros for Mutex* interfaces, map to existing semaphore xfaces */
-
-#define acpi_os_create_mutex(out_handle) acpi_os_create_semaphore (1, 1, out_handle)
-#define acpi_os_delete_mutex(handle) (void) acpi_os_delete_semaphore (handle)
-#define acpi_os_acquire_mutex(handle,time) acpi_os_wait_semaphore (handle, 1, time)
-#define acpi_os_release_mutex(handle) (void) acpi_os_signal_semaphore (handle, 1)
+#endif
/*
* Memory allocation and mapping
#ifndef __ACXFACE_H__
#define __ACXFACE_H__
+/* Current ACPICA subsystem version in YYYYMMDD format */
+
+#define ACPI_CA_VERSION 0x20081204
+
#include "actypes.h"
#include "actbl.h"
+extern u8 acpi_gbl_permanent_mmap;
+
+/*
+ * Globals that are publically available, allowing for
+ * run time configuration
+ */
+extern u32 acpi_dbg_level;
+extern u32 acpi_dbg_layer;
+extern u8 acpi_gbl_enable_interpreter_slack;
+extern u8 acpi_gbl_all_methods_serialized;
+extern u8 acpi_gbl_create_osi_method;
+extern u8 acpi_gbl_leave_wake_gpes_disabled;
+extern acpi_name acpi_gbl_trace_method_name;
+extern u32 acpi_gbl_trace_flags;
+
+extern u32 acpi_current_gpe_count;
+extern struct acpi_table_fadt acpi_gbl_FADT;
+
+extern u32 acpi_rsdt_forced;
/*
* Global interfaces
*/
acpi_status acpi_purge_cached_objects(void);
-#ifdef ACPI_FUTURE_USAGE
-acpi_status
-acpi_install_initialization_handler(acpi_init_handler handler, u32 function);
-#endif
-
/*
* ACPI Memory management
*/
acpi_status acpi_get_parent(acpi_handle object, acpi_handle * out_handle);
/*
- * Event handler interfaces
+ * Handler interfaces
*/
+acpi_status
+acpi_install_initialization_handler(acpi_init_handler handler, u32 function);
+
acpi_status
acpi_install_fixed_event_handler(u32 acpi_event,
acpi_event_handler handler, void *context);
u32 gpe_number,
u32 type, acpi_event_handler address, void *context);
+acpi_status
+acpi_remove_gpe_handler(acpi_handle gpe_device,
+ u32 gpe_number, acpi_event_handler address);
+
#ifdef ACPI_FUTURE_USAGE
acpi_status acpi_install_exception_handler(acpi_exception_handler handler);
#endif
acpi_status acpi_release_global_lock(u32 handle);
-acpi_status
-acpi_remove_gpe_handler(acpi_handle gpe_device,
- u32 gpe_number, acpi_event_handler address);
-
acpi_status acpi_enable_event(u32 event, u32 flags);
acpi_status acpi_disable_event(u32 event, u32 flags);
acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status);
+/*
+ * GPE Interfaces
+ */
acpi_status acpi_set_gpe_type(acpi_handle gpe_device, u32 gpe_number, u8 type);
acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number);
u32 gpe_number,
u32 flags, acpi_event_status * event_status);
+acpi_status acpi_disable_all_gpes(void);
+
+acpi_status acpi_enable_all_runtime_gpes(void);
+
+acpi_status acpi_get_gpe_device(u32 gpe_index, acpi_handle *gpe_device);
+
acpi_status
acpi_install_gpe_block(acpi_handle gpe_device,
struct acpi_generic_address *gpe_block_address,
/*
* Hardware (ACPI device) interfaces
*/
+acpi_status acpi_reset(void);
+
acpi_status acpi_get_register(u32 register_id, u32 * return_value);
acpi_status acpi_get_register_unlocked(u32 register_id, u32 *return_value);
acpi_status acpi_set_register(u32 register_id, u32 value);
acpi_status
-acpi_set_firmware_waking_vector(acpi_physical_address physical_address);
+acpi_set_firmware_waking_vector(u32 physical_address);
-#ifdef ACPI_FUTURE_USAGE
acpi_status
-acpi_get_firmware_waking_vector(acpi_physical_address * physical_address);
-#endif
+acpi_set_firmware_waking_vector64(u64 physical_address);
+
+acpi_status acpi_read(u32 *value, struct acpi_generic_address *reg);
+
+acpi_status acpi_write(u32 value, struct acpi_generic_address *reg);
acpi_status
acpi_get_sleep_type_data(u8 sleep_state, u8 * slp_typ_a, u8 * slp_typ_b);
acpi_status acpi_leave_sleep_state(u8 sleep_state);
+/*
+ * Debug output
+ */
+void ACPI_INTERNAL_VAR_XFACE
+acpi_error(const char *module_name,
+ u32 line_number, const char *format, ...) ACPI_PRINTF_LIKE(3);
+
+void ACPI_INTERNAL_VAR_XFACE
+acpi_exception(const char *module_name,
+ u32 line_number,
+ acpi_status status, const char *format, ...) ACPI_PRINTF_LIKE(4);
+
+void ACPI_INTERNAL_VAR_XFACE
+acpi_warning(const char *module_name,
+ u32 line_number, const char *format, ...) ACPI_PRINTF_LIKE(3);
+
+void ACPI_INTERNAL_VAR_XFACE
+acpi_info(const char *module_name,
+ u32 line_number, const char *format, ...) ACPI_PRINTF_LIKE(3);
+
+#ifdef ACPI_DEBUG_OUTPUT
+
+void ACPI_INTERNAL_VAR_XFACE
+acpi_debug_print(u32 requested_debug_level,
+ u32 line_number,
+ const char *function_name,
+ const char *module_name,
+ u32 component_id, const char *format, ...) ACPI_PRINTF_LIKE(6);
+
+void ACPI_INTERNAL_VAR_XFACE
+acpi_debug_print_raw(u32 requested_debug_level,
+ u32 line_number,
+ const char *function_name,
+ const char *module_name,
+ u32 component_id,
+ const char *format, ...) ACPI_PRINTF_LIKE(6);
+#endif
+
#endif /* __ACXFACE_H__ */
--- /dev/null
+/******************************************************************************
+ *
+ * Name: acrestyp.h - Defines, types, and structures for resource descriptors
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#ifndef __ACRESTYP_H__
+#define __ACRESTYP_H__
+
+/*
+ * Definitions for Resource Attributes
+ */
+typedef u16 acpi_rs_length; /* Resource Length field is fixed at 16 bits */
+typedef u32 acpi_rsdesc_size; /* Max Resource Descriptor size is (Length+3) = (64_k-1)+3 */
+
+/*
+ * Memory Attributes
+ */
+#define ACPI_READ_ONLY_MEMORY (u8) 0x00
+#define ACPI_READ_WRITE_MEMORY (u8) 0x01
+
+#define ACPI_NON_CACHEABLE_MEMORY (u8) 0x00
+#define ACPI_CACHABLE_MEMORY (u8) 0x01
+#define ACPI_WRITE_COMBINING_MEMORY (u8) 0x02
+#define ACPI_PREFETCHABLE_MEMORY (u8) 0x03
+
+/*
+ * IO Attributes
+ * The ISA IO ranges are: n000-n0_fFh, n400-n4_fFh, n800-n8_fFh, n_c00-n_cFFh.
+ * The non-ISA IO ranges are: n100-n3_fFh, n500-n7_fFh, n900-n_bFFh, n_cd0-n_fFFh.
+ */
+#define ACPI_NON_ISA_ONLY_RANGES (u8) 0x01
+#define ACPI_ISA_ONLY_RANGES (u8) 0x02
+#define ACPI_ENTIRE_RANGE (ACPI_NON_ISA_ONLY_RANGES | ACPI_ISA_ONLY_RANGES)
+
+/* Type of translation - 1=Sparse, 0=Dense */
+
+#define ACPI_SPARSE_TRANSLATION (u8) 0x01
+
+/*
+ * IO Port Descriptor Decode
+ */
+#define ACPI_DECODE_10 (u8) 0x00 /* 10-bit IO address decode */
+#define ACPI_DECODE_16 (u8) 0x01 /* 16-bit IO address decode */
+
+/*
+ * IRQ Attributes
+ */
+#define ACPI_LEVEL_SENSITIVE (u8) 0x00
+#define ACPI_EDGE_SENSITIVE (u8) 0x01
+
+#define ACPI_ACTIVE_HIGH (u8) 0x00
+#define ACPI_ACTIVE_LOW (u8) 0x01
+
+#define ACPI_EXCLUSIVE (u8) 0x00
+#define ACPI_SHARED (u8) 0x01
+
+/*
+ * DMA Attributes
+ */
+#define ACPI_COMPATIBILITY (u8) 0x00
+#define ACPI_TYPE_A (u8) 0x01
+#define ACPI_TYPE_B (u8) 0x02
+#define ACPI_TYPE_F (u8) 0x03
+
+#define ACPI_NOT_BUS_MASTER (u8) 0x00
+#define ACPI_BUS_MASTER (u8) 0x01
+
+#define ACPI_TRANSFER_8 (u8) 0x00
+#define ACPI_TRANSFER_8_16 (u8) 0x01
+#define ACPI_TRANSFER_16 (u8) 0x02
+
+/*
+ * Start Dependent Functions Priority definitions
+ */
+#define ACPI_GOOD_CONFIGURATION (u8) 0x00
+#define ACPI_ACCEPTABLE_CONFIGURATION (u8) 0x01
+#define ACPI_SUB_OPTIMAL_CONFIGURATION (u8) 0x02
+
+/*
+ * 16, 32 and 64-bit Address Descriptor resource types
+ */
+#define ACPI_MEMORY_RANGE (u8) 0x00
+#define ACPI_IO_RANGE (u8) 0x01
+#define ACPI_BUS_NUMBER_RANGE (u8) 0x02
+
+#define ACPI_ADDRESS_NOT_FIXED (u8) 0x00
+#define ACPI_ADDRESS_FIXED (u8) 0x01
+
+#define ACPI_POS_DECODE (u8) 0x00
+#define ACPI_SUB_DECODE (u8) 0x01
+
+#define ACPI_PRODUCER (u8) 0x00
+#define ACPI_CONSUMER (u8) 0x01
+
+/*
+ * If possible, pack the following structures to byte alignment
+ */
+#ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
+#pragma pack(1)
+#endif
+
+/* UUID data structures for use in vendor-defined resource descriptors */
+
+struct acpi_uuid {
+ u8 data[ACPI_UUID_LENGTH];
+};
+
+struct acpi_vendor_uuid {
+ u8 subtype;
+ u8 data[ACPI_UUID_LENGTH];
+};
+
+/*
+ * Structures used to describe device resources
+ */
+struct acpi_resource_irq {
+ u8 descriptor_length;
+ u8 triggering;
+ u8 polarity;
+ u8 sharable;
+ u8 interrupt_count;
+ u8 interrupts[1];
+};
+
+struct acpi_resource_dma {
+ u8 type;
+ u8 bus_master;
+ u8 transfer;
+ u8 channel_count;
+ u8 channels[1];
+};
+
+struct acpi_resource_start_dependent {
+ u8 descriptor_length;
+ u8 compatibility_priority;
+ u8 performance_robustness;
+};
+
+/*
+ * The END_DEPENDENT_FUNCTIONS_RESOURCE struct is not
+ * needed because it has no fields
+ */
+
+struct acpi_resource_io {
+ u8 io_decode;
+ u8 alignment;
+ u8 address_length;
+ u16 minimum;
+ u16 maximum;
+};
+
+struct acpi_resource_fixed_io {
+ u16 address;
+ u8 address_length;
+};
+
+struct acpi_resource_vendor {
+ u16 byte_length;
+ u8 byte_data[1];
+};
+
+/* Vendor resource with UUID info (introduced in ACPI 3.0) */
+
+struct acpi_resource_vendor_typed {
+ u16 byte_length;
+ u8 uuid_subtype;
+ u8 uuid[ACPI_UUID_LENGTH];
+ u8 byte_data[1];
+};
+
+struct acpi_resource_end_tag {
+ u8 checksum;
+};
+
+struct acpi_resource_memory24 {
+ u8 write_protect;
+ u16 minimum;
+ u16 maximum;
+ u16 alignment;
+ u16 address_length;
+};
+
+struct acpi_resource_memory32 {
+ u8 write_protect;
+ u32 minimum;
+ u32 maximum;
+ u32 alignment;
+ u32 address_length;
+};
+
+struct acpi_resource_fixed_memory32 {
+ u8 write_protect;
+ u32 address;
+ u32 address_length;
+};
+
+struct acpi_memory_attribute {
+ u8 write_protect;
+ u8 caching;
+ u8 range_type;
+ u8 translation;
+};
+
+struct acpi_io_attribute {
+ u8 range_type;
+ u8 translation;
+ u8 translation_type;
+ u8 reserved1;
+};
+
+union acpi_resource_attribute {
+ struct acpi_memory_attribute mem;
+ struct acpi_io_attribute io;
+
+ /* Used for the *word_space macros */
+
+ u8 type_specific;
+};
+
+struct acpi_resource_source {
+ u8 index;
+ u16 string_length;
+ char *string_ptr;
+};
+
+/* Fields common to all address descriptors, 16/32/64 bit */
+
+#define ACPI_RESOURCE_ADDRESS_COMMON \
+ u8 resource_type; \
+ u8 producer_consumer; \
+ u8 decode; \
+ u8 min_address_fixed; \
+ u8 max_address_fixed; \
+ union acpi_resource_attribute info;
+
+struct acpi_resource_address {
+ACPI_RESOURCE_ADDRESS_COMMON};
+
+struct acpi_resource_address16 {
+ ACPI_RESOURCE_ADDRESS_COMMON u16 granularity;
+ u16 minimum;
+ u16 maximum;
+ u16 translation_offset;
+ u16 address_length;
+ struct acpi_resource_source resource_source;
+};
+
+struct acpi_resource_address32 {
+ ACPI_RESOURCE_ADDRESS_COMMON u32 granularity;
+ u32 minimum;
+ u32 maximum;
+ u32 translation_offset;
+ u32 address_length;
+ struct acpi_resource_source resource_source;
+};
+
+struct acpi_resource_address64 {
+ ACPI_RESOURCE_ADDRESS_COMMON u64 granularity;
+ u64 minimum;
+ u64 maximum;
+ u64 translation_offset;
+ u64 address_length;
+ struct acpi_resource_source resource_source;
+};
+
+struct acpi_resource_extended_address64 {
+ ACPI_RESOURCE_ADDRESS_COMMON u8 revision_iD;
+ u64 granularity;
+ u64 minimum;
+ u64 maximum;
+ u64 translation_offset;
+ u64 address_length;
+ u64 type_specific;
+};
+
+struct acpi_resource_extended_irq {
+ u8 producer_consumer;
+ u8 triggering;
+ u8 polarity;
+ u8 sharable;
+ u8 interrupt_count;
+ struct acpi_resource_source resource_source;
+ u32 interrupts[1];
+};
+
+struct acpi_resource_generic_register {
+ u8 space_id;
+ u8 bit_width;
+ u8 bit_offset;
+ u8 access_size;
+ u64 address;
+};
+
+/* ACPI_RESOURCE_TYPEs */
+
+#define ACPI_RESOURCE_TYPE_IRQ 0
+#define ACPI_RESOURCE_TYPE_DMA 1
+#define ACPI_RESOURCE_TYPE_START_DEPENDENT 2
+#define ACPI_RESOURCE_TYPE_END_DEPENDENT 3
+#define ACPI_RESOURCE_TYPE_IO 4
+#define ACPI_RESOURCE_TYPE_FIXED_IO 5
+#define ACPI_RESOURCE_TYPE_VENDOR 6
+#define ACPI_RESOURCE_TYPE_END_TAG 7
+#define ACPI_RESOURCE_TYPE_MEMORY24 8
+#define ACPI_RESOURCE_TYPE_MEMORY32 9
+#define ACPI_RESOURCE_TYPE_FIXED_MEMORY32 10
+#define ACPI_RESOURCE_TYPE_ADDRESS16 11
+#define ACPI_RESOURCE_TYPE_ADDRESS32 12
+#define ACPI_RESOURCE_TYPE_ADDRESS64 13
+#define ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 14 /* ACPI 3.0 */
+#define ACPI_RESOURCE_TYPE_EXTENDED_IRQ 15
+#define ACPI_RESOURCE_TYPE_GENERIC_REGISTER 16
+#define ACPI_RESOURCE_TYPE_MAX 16
+
+/* Master union for resource descriptors */
+
+union acpi_resource_data {
+ struct acpi_resource_irq irq;
+ struct acpi_resource_dma dma;
+ struct acpi_resource_start_dependent start_dpf;
+ struct acpi_resource_io io;
+ struct acpi_resource_fixed_io fixed_io;
+ struct acpi_resource_vendor vendor;
+ struct acpi_resource_vendor_typed vendor_typed;
+ struct acpi_resource_end_tag end_tag;
+ struct acpi_resource_memory24 memory24;
+ struct acpi_resource_memory32 memory32;
+ struct acpi_resource_fixed_memory32 fixed_memory32;
+ struct acpi_resource_address16 address16;
+ struct acpi_resource_address32 address32;
+ struct acpi_resource_address64 address64;
+ struct acpi_resource_extended_address64 ext_address64;
+ struct acpi_resource_extended_irq extended_irq;
+ struct acpi_resource_generic_register generic_reg;
+
+ /* Common fields */
+
+ struct acpi_resource_address address; /* Common 16/32/64 address fields */
+};
+
+/* Common resource header */
+
+struct acpi_resource {
+ u32 type;
+ u32 length;
+ union acpi_resource_data data;
+};
+
+/* restore default alignment */
+
+#pragma pack()
+
+#define ACPI_RS_SIZE_NO_DATA 8 /* Id + Length fields */
+#define ACPI_RS_SIZE_MIN (u32) ACPI_ROUND_UP_TO_NATIVE_WORD (12)
+#define ACPI_RS_SIZE(type) (u32) (ACPI_RS_SIZE_NO_DATA + sizeof (type))
+
+#define ACPI_NEXT_RESOURCE(res) (struct acpi_resource *)((u8 *) res + res->length)
+
+struct acpi_pci_routing_table {
+ u32 length;
+ u32 pin;
+ acpi_integer address; /* here for 64-bit alignment */
+ u32 source_index;
+ char source[4]; /* pad to 64 bits so sizeof() works in all cases */
+};
+
+#endif /* __ACRESTYP_H__ */
#define ACPI_FADT_OFFSET(f) (u8) ACPI_OFFSET (struct acpi_table_fadt, f)
+union acpi_name_union {
+ u32 integer;
+ char ascii[4];
+};
+
+/*
+ * Internal ACPI Table Descriptor. One per ACPI table
+ */
+struct acpi_table_desc {
+ acpi_physical_address address;
+ struct acpi_table_header *pointer;
+ u32 length; /* Length fixed at 32 bits */
+ union acpi_name_union signature;
+ acpi_owner_id owner_id;
+ u8 flags;
+};
+
+/* Flags for above */
+
+#define ACPI_TABLE_ORIGIN_UNKNOWN (0)
+#define ACPI_TABLE_ORIGIN_MAPPED (1)
+#define ACPI_TABLE_ORIGIN_ALLOCATED (2)
+#define ACPI_TABLE_ORIGIN_MASK (3)
+#define ACPI_TABLE_IS_LOADED (4)
+
/*
* Get the remaining ACPI tables
*/
u32 uncorrectable_error_mask;
u32 uncorrectable_error_severity;
u32 correctable_error_mask;
- u32 advanced_error_cababilities;
+ u32 advanced_error_capabilities;
};
/* Hardware Error Notification */
/*******************************************************************************
*
- * OS-dependent and compiler-dependent types
+ * OS-dependent types
*
* If the defaults below are not appropriate for the host system, they can
- * be defined in the compiler-specific or OS-specific header, and this will
- * take precedence.
+ * be defined in the OS-specific header, and this will take precedence.
*
******************************************************************************/
#define acpi_thread_id acpi_size
#endif
-/* Object returned from acpi_os_create_lock */
-
-#ifndef acpi_spinlock
-#define acpi_spinlock void *
-#endif
-
/* Flags for acpi_os_acquire_lock/acpi_os_release_lock */
#ifndef acpi_cpu_flags
/* Object returned from acpi_os_create_cache */
#ifndef acpi_cache_t
+#ifdef ACPI_USE_LOCAL_CACHE
#define acpi_cache_t struct acpi_memory_list
+#else
+#define acpi_cache_t void *
+#endif
+#endif
+
+/*
+ * Synchronization objects - Mutexes, Semaphores, and spin_locks
+ */
+#if (ACPI_MUTEX_TYPE == ACPI_BINARY_SEMAPHORE)
+/*
+ * These macros are used if the host OS does not support a mutex object.
+ * Map the OSL Mutex interfaces to binary semaphores.
+ */
+#define acpi_mutex acpi_semaphore
+#define acpi_os_create_mutex(out_handle) acpi_os_create_semaphore (1, 1, out_handle)
+#define acpi_os_delete_mutex(handle) (void) acpi_os_delete_semaphore (handle)
+#define acpi_os_acquire_mutex(handle,time) acpi_os_wait_semaphore (handle, 1, time)
+#define acpi_os_release_mutex(handle) (void) acpi_os_signal_semaphore (handle, 1)
+#endif
+
+/* Configurable types for synchronization objects */
+
+#ifndef acpi_spinlock
+#define acpi_spinlock void *
+#endif
+
+#ifndef acpi_semaphore
+#define acpi_semaphore void *
+#endif
+
+#ifndef acpi_mutex
+#define acpi_mutex void *
#endif
+/*******************************************************************************
+ *
+ * Compiler-dependent types
+ *
+ * If the defaults below are not appropriate for the host compiler, they can
+ * be defined in the compiler-specific header, and this will take precedence.
+ *
+ ******************************************************************************/
+
/* Use C99 uintptr_t for pointer casting if available, "void *" otherwise */
#ifndef acpi_uintptr_t
#define ACPI_EXPORT_SYMBOL(symbol)
#endif
+/******************************************************************************
+ *
+ * ACPI Specification constants (Do not change unless the specification changes)
+ *
+ *****************************************************************************/
+
+/* Number of distinct FADT-based GPE register blocks (GPE0 and GPE1) */
+
+#define ACPI_MAX_GPE_BLOCKS 2
+
+/* Default ACPI register widths */
+
+#define ACPI_GPE_REGISTER_WIDTH 8
+#define ACPI_PM1_REGISTER_WIDTH 16
+#define ACPI_PM2_REGISTER_WIDTH 8
+#define ACPI_PM_TIMER_WIDTH 32
+
+/* Names within the namespace are 4 bytes long */
+
+#define ACPI_NAME_SIZE 4
+#define ACPI_PATH_SEGMENT_LENGTH 5 /* 4 chars for name + 1 char for separator */
+#define ACPI_PATH_SEPARATOR '.'
+
+/* Sizes for ACPI table headers */
+
+#define ACPI_OEM_ID_SIZE 6
+#define ACPI_OEM_TABLE_ID_SIZE 8
+
+/* ACPI/PNP hardware IDs */
+
+#define PCI_ROOT_HID_STRING "PNP0A03"
+#define PCI_EXPRESS_ROOT_HID_STRING "PNP0A08"
+
+/* PM Timer ticks per second (HZ) */
+
+#define PM_TIMER_FREQUENCY 3579545
+
/*******************************************************************************
*
* Independent types
#endif
/*
- * Mescellaneous types
+ * Miscellaneous types
*/
typedef u32 acpi_status; /* All ACPI Exceptions */
typedef u32 acpi_name; /* 4-byte ACPI name */
typedef char *acpi_string; /* Null terminated ASCII string */
typedef void *acpi_handle; /* Actually a ptr to a NS Node */
+/* Owner IDs are used to track namespace nodes for selective deletion */
+
+typedef u8 acpi_owner_id;
+#define ACPI_OWNER_ID_MAX 0xFF
+
struct uint64_struct {
u32 lo;
u32 hi;
u32 hi;
};
-/* Synchronization objects */
-
-#define acpi_mutex void *
-#define acpi_semaphore void *
-
/*
- * Acpi integer width. In ACPI version 1, integers are 32 bits. In ACPI
+ * Acpi integer width. In ACPI version 1, integers are 32 bits. In ACPI
* version 2, integers are 64 bits. Note that this pertains to the ACPI integer
* type only, not other integers used in the implementation of the ACPI CA
* subsystem.
#define ACPI_MAX16_DECIMAL_DIGITS 5
#define ACPI_MAX8_DECIMAL_DIGITS 3
+/* PM Timer ticks per second (HZ) */
+
+#define PM_TIMER_FREQUENCY 3579545
+
/*
* Constants with special meanings
*/
#define ACPI_ROOT_OBJECT ACPI_ADD_PTR (acpi_handle, NULL, ACPI_MAX_PTR)
+#define ACPI_WAIT_FOREVER 0xFFFF /* u16, as per ACPI spec */
+#define ACPI_DO_NOT_WAIT 0
+
+/*******************************************************************************
+ *
+ * Commonly used macros
+ *
+ ******************************************************************************/
+
+/* Data manipulation */
+
+#define ACPI_LOWORD(l) ((u16)(u32)(l))
+#define ACPI_HIWORD(l) ((u16)((((u32)(l)) >> 16) & 0xFFFF))
+#define ACPI_LOBYTE(l) ((u8)(u16)(l))
+#define ACPI_HIBYTE(l) ((u8)((((u16)(l)) >> 8) & 0xFF))
+
+/* Full 64-bit integer must be available on both 32-bit and 64-bit platforms */
+
+struct acpi_integer_overlay {
+ u32 lo_dword;
+ u32 hi_dword;
+};
+
+#define ACPI_LODWORD(integer) (ACPI_CAST_PTR (struct acpi_integer_overlay, &integer)->lo_dword)
+#define ACPI_HIDWORD(integer) (ACPI_CAST_PTR (struct acpi_integer_overlay, &integer)->hi_dword)
+
+#define ACPI_SET_BIT(target,bit) ((target) |= (bit))
+#define ACPI_CLEAR_BIT(target,bit) ((target) &= ~(bit))
+#define ACPI_MIN(a,b) (((a)<(b))?(a):(b))
+#define ACPI_MAX(a,b) (((a)>(b))?(a):(b))
+
+/* Size calculation */
+
+#define ACPI_ARRAY_LENGTH(x) (sizeof(x) / sizeof((x)[0]))
+
+/* Pointer manipulation */
+
+#define ACPI_CAST_PTR(t, p) ((t *) (acpi_uintptr_t) (p))
+#define ACPI_CAST_INDIRECT_PTR(t, p) ((t **) (acpi_uintptr_t) (p))
+#define ACPI_ADD_PTR(t, a, b) ACPI_CAST_PTR (t, (ACPI_CAST_PTR (u8, (a)) + (acpi_size)(b)))
+#define ACPI_PTR_DIFF(a, b) (acpi_size) (ACPI_CAST_PTR (u8, (a)) - ACPI_CAST_PTR (u8, (b)))
+
+/* Pointer/Integer type conversions */
+
+#define ACPI_TO_POINTER(i) ACPI_ADD_PTR (void, (void *) NULL,(acpi_size) i)
+#define ACPI_TO_INTEGER(p) ACPI_PTR_DIFF (p, (void *) NULL)
+#define ACPI_OFFSET(d, f) (acpi_size) ACPI_PTR_DIFF (&(((d *)0)->f), (void *) NULL)
+#define ACPI_PHYSADDR_TO_PTR(i) ACPI_TO_POINTER(i)
+#define ACPI_PTR_TO_PHYSADDR(i) ACPI_TO_INTEGER(i)
+
+#ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
+#define ACPI_COMPARE_NAME(a,b) (*ACPI_CAST_PTR (u32, (a)) == *ACPI_CAST_PTR (u32, (b)))
+#else
+#define ACPI_COMPARE_NAME(a,b) (!ACPI_STRNCMP (ACPI_CAST_PTR (char, (a)), ACPI_CAST_PTR (char, (b)), ACPI_NAME_SIZE))
+#endif
+
+/*******************************************************************************
+ *
+ * Miscellaneous constants
+ *
+ ******************************************************************************/
/*
* Initialization sequence
#define ACPI_NOTIFY_MAX 0x0B
/*
- * Types associated with ACPI names and objects. The first group of
+ * Types associated with ACPI names and objects. The first group of
* values (up to ACPI_TYPE_EXTERNAL_MAX) correspond to the definition
* of the ACPI object_type() operator (See the ACPI Spec). Therefore,
* only add to the first group if the spec changes.
#define ACPI_SINGLE_NAME 1
#define ACPI_NAME_TYPE_MAX 1
+/*
+ * Predefined Namespace items
+ */
+struct acpi_predefined_names {
+ char *name;
+ u8 type;
+ char *val;
+};
+
/*
* Structure and flags for acpi_get_system_info
*/
u16 opcode,
u32 aml_offset, void *context);
-/* Table Event handler (Load, load_table etc) and types */
+/* Table Event handler (Load, load_table, etc.) and types */
typedef
acpi_status(*acpi_tbl_handler) (u32 event, void *table, void *context);
#define ACPI_INTERRUPT_NOT_HANDLED 0x00
#define ACPI_INTERRUPT_HANDLED 0x01
+/* Length of _HID, _UID, _CID, and UUID values */
+
+#define ACPI_DEVICE_ID_LENGTH 0x09
+#define ACPI_MAX_CID_LENGTH 48
+#define ACPI_UUID_LENGTH 16
+
/* Common string version of device HIDs and UIDs */
struct acpica_device_id {
};
/*
- * Definitions for Resource Attributes
- */
-typedef u16 acpi_rs_length; /* Resource Length field is fixed at 16 bits */
-typedef u32 acpi_rsdesc_size; /* Max Resource Descriptor size is (Length+3) = (64_k-1)+3 */
-
-/*
- * Memory Attributes
- */
-#define ACPI_READ_ONLY_MEMORY (u8) 0x00
-#define ACPI_READ_WRITE_MEMORY (u8) 0x01
-
-#define ACPI_NON_CACHEABLE_MEMORY (u8) 0x00
-#define ACPI_CACHABLE_MEMORY (u8) 0x01
-#define ACPI_WRITE_COMBINING_MEMORY (u8) 0x02
-#define ACPI_PREFETCHABLE_MEMORY (u8) 0x03
-
-/*
- * IO Attributes
- * The ISA IO ranges are: n000-n0_fFh, n400-n4_fFh, n800-n8_fFh, n_c00-n_cFFh.
- * The non-ISA IO ranges are: n100-n3_fFh, n500-n7_fFh, n900-n_bFFh, n_cd0-n_fFFh.
+ * struct acpi_memory_list is used only if the ACPICA local cache is enabled
*/
-#define ACPI_NON_ISA_ONLY_RANGES (u8) 0x01
-#define ACPI_ISA_ONLY_RANGES (u8) 0x02
-#define ACPI_ENTIRE_RANGE (ACPI_NON_ISA_ONLY_RANGES | ACPI_ISA_ONLY_RANGES)
-
-/* Type of translation - 1=Sparse, 0=Dense */
-
-#define ACPI_SPARSE_TRANSLATION (u8) 0x01
-
-/*
- * IO Port Descriptor Decode
- */
-#define ACPI_DECODE_10 (u8) 0x00 /* 10-bit IO address decode */
-#define ACPI_DECODE_16 (u8) 0x01 /* 16-bit IO address decode */
-
-/*
- * IRQ Attributes
- */
-#define ACPI_LEVEL_SENSITIVE (u8) 0x00
-#define ACPI_EDGE_SENSITIVE (u8) 0x01
-
-#define ACPI_ACTIVE_HIGH (u8) 0x00
-#define ACPI_ACTIVE_LOW (u8) 0x01
-
-#define ACPI_EXCLUSIVE (u8) 0x00
-#define ACPI_SHARED (u8) 0x01
-
-/*
- * DMA Attributes
- */
-#define ACPI_COMPATIBILITY (u8) 0x00
-#define ACPI_TYPE_A (u8) 0x01
-#define ACPI_TYPE_B (u8) 0x02
-#define ACPI_TYPE_F (u8) 0x03
-
-#define ACPI_NOT_BUS_MASTER (u8) 0x00
-#define ACPI_BUS_MASTER (u8) 0x01
-
-#define ACPI_TRANSFER_8 (u8) 0x00
-#define ACPI_TRANSFER_8_16 (u8) 0x01
-#define ACPI_TRANSFER_16 (u8) 0x02
-
-/*
- * Start Dependent Functions Priority definitions
- */
-#define ACPI_GOOD_CONFIGURATION (u8) 0x00
-#define ACPI_ACCEPTABLE_CONFIGURATION (u8) 0x01
-#define ACPI_SUB_OPTIMAL_CONFIGURATION (u8) 0x02
-
-/*
- * 16, 32 and 64-bit Address Descriptor resource types
- */
-#define ACPI_MEMORY_RANGE (u8) 0x00
-#define ACPI_IO_RANGE (u8) 0x01
-#define ACPI_BUS_NUMBER_RANGE (u8) 0x02
-
-#define ACPI_ADDRESS_NOT_FIXED (u8) 0x00
-#define ACPI_ADDRESS_FIXED (u8) 0x01
-
-#define ACPI_POS_DECODE (u8) 0x00
-#define ACPI_SUB_DECODE (u8) 0x01
-
-#define ACPI_PRODUCER (u8) 0x00
-#define ACPI_CONSUMER (u8) 0x01
-
-/*
- * If possible, pack the following structures to byte alignment
- */
-#ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
-#pragma pack(1)
+struct acpi_memory_list {
+ char *list_name;
+ void *list_head;
+ u16 object_size;
+ u16 max_depth;
+ u16 current_depth;
+ u16 link_offset;
+
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+
+ /* Statistics for debug memory tracking only */
+
+ u32 total_allocated;
+ u32 total_freed;
+ u32 max_occupied;
+ u32 total_size;
+ u32 current_total_size;
+ u32 requests;
+ u32 hits;
#endif
-
-/* UUID data structures for use in vendor-defined resource descriptors */
-
-struct acpi_uuid {
- u8 data[ACPI_UUID_LENGTH];
-};
-
-struct acpi_vendor_uuid {
- u8 subtype;
- u8 data[ACPI_UUID_LENGTH];
-};
-
-/*
- * Structures used to describe device resources
- */
-struct acpi_resource_irq {
- u8 descriptor_length;
- u8 triggering;
- u8 polarity;
- u8 sharable;
- u8 interrupt_count;
- u8 interrupts[1];
-};
-
-struct acpi_resource_dma {
- u8 type;
- u8 bus_master;
- u8 transfer;
- u8 channel_count;
- u8 channels[1];
-};
-
-struct acpi_resource_start_dependent {
- u8 descriptor_length;
- u8 compatibility_priority;
- u8 performance_robustness;
-};
-
-/*
- * END_DEPENDENT_FUNCTIONS_RESOURCE struct is not
- * needed because it has no fields
- */
-
-struct acpi_resource_io {
- u8 io_decode;
- u8 alignment;
- u8 address_length;
- u16 minimum;
- u16 maximum;
-};
-
-struct acpi_resource_fixed_io {
- u16 address;
- u8 address_length;
-};
-
-struct acpi_resource_vendor {
- u16 byte_length;
- u8 byte_data[1];
-};
-
-/* Vendor resource with UUID info (introduced in ACPI 3.0) */
-
-struct acpi_resource_vendor_typed {
- u16 byte_length;
- u8 uuid_subtype;
- u8 uuid[ACPI_UUID_LENGTH];
- u8 byte_data[1];
-};
-
-struct acpi_resource_end_tag {
- u8 checksum;
-};
-
-struct acpi_resource_memory24 {
- u8 write_protect;
- u16 minimum;
- u16 maximum;
- u16 alignment;
- u16 address_length;
-};
-
-struct acpi_resource_memory32 {
- u8 write_protect;
- u32 minimum;
- u32 maximum;
- u32 alignment;
- u32 address_length;
-};
-
-struct acpi_resource_fixed_memory32 {
- u8 write_protect;
- u32 address;
- u32 address_length;
-};
-
-struct acpi_memory_attribute {
- u8 write_protect;
- u8 caching;
- u8 range_type;
- u8 translation;
-};
-
-struct acpi_io_attribute {
- u8 range_type;
- u8 translation;
- u8 translation_type;
- u8 reserved1;
-};
-
-union acpi_resource_attribute {
- struct acpi_memory_attribute mem;
- struct acpi_io_attribute io;
-
- /* Used for the *word_space macros */
-
- u8 type_specific;
-};
-
-struct acpi_resource_source {
- u8 index;
- u16 string_length;
- char *string_ptr;
-};
-
-/* Fields common to all address descriptors, 16/32/64 bit */
-
-#define ACPI_RESOURCE_ADDRESS_COMMON \
- u8 resource_type; \
- u8 producer_consumer; \
- u8 decode; \
- u8 min_address_fixed; \
- u8 max_address_fixed; \
- union acpi_resource_attribute info;
-
-struct acpi_resource_address {
-ACPI_RESOURCE_ADDRESS_COMMON};
-
-struct acpi_resource_address16 {
- ACPI_RESOURCE_ADDRESS_COMMON u16 granularity;
- u16 minimum;
- u16 maximum;
- u16 translation_offset;
- u16 address_length;
- struct acpi_resource_source resource_source;
-};
-
-struct acpi_resource_address32 {
- ACPI_RESOURCE_ADDRESS_COMMON u32 granularity;
- u32 minimum;
- u32 maximum;
- u32 translation_offset;
- u32 address_length;
- struct acpi_resource_source resource_source;
-};
-
-struct acpi_resource_address64 {
- ACPI_RESOURCE_ADDRESS_COMMON u64 granularity;
- u64 minimum;
- u64 maximum;
- u64 translation_offset;
- u64 address_length;
- struct acpi_resource_source resource_source;
-};
-
-struct acpi_resource_extended_address64 {
- ACPI_RESOURCE_ADDRESS_COMMON u8 revision_iD;
- u64 granularity;
- u64 minimum;
- u64 maximum;
- u64 translation_offset;
- u64 address_length;
- u64 type_specific;
-};
-
-struct acpi_resource_extended_irq {
- u8 producer_consumer;
- u8 triggering;
- u8 polarity;
- u8 sharable;
- u8 interrupt_count;
- struct acpi_resource_source resource_source;
- u32 interrupts[1];
-};
-
-struct acpi_resource_generic_register {
- u8 space_id;
- u8 bit_width;
- u8 bit_offset;
- u8 access_size;
- u64 address;
-};
-
-/* ACPI_RESOURCE_TYPEs */
-
-#define ACPI_RESOURCE_TYPE_IRQ 0
-#define ACPI_RESOURCE_TYPE_DMA 1
-#define ACPI_RESOURCE_TYPE_START_DEPENDENT 2
-#define ACPI_RESOURCE_TYPE_END_DEPENDENT 3
-#define ACPI_RESOURCE_TYPE_IO 4
-#define ACPI_RESOURCE_TYPE_FIXED_IO 5
-#define ACPI_RESOURCE_TYPE_VENDOR 6
-#define ACPI_RESOURCE_TYPE_END_TAG 7
-#define ACPI_RESOURCE_TYPE_MEMORY24 8
-#define ACPI_RESOURCE_TYPE_MEMORY32 9
-#define ACPI_RESOURCE_TYPE_FIXED_MEMORY32 10
-#define ACPI_RESOURCE_TYPE_ADDRESS16 11
-#define ACPI_RESOURCE_TYPE_ADDRESS32 12
-#define ACPI_RESOURCE_TYPE_ADDRESS64 13
-#define ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 14 /* ACPI 3.0 */
-#define ACPI_RESOURCE_TYPE_EXTENDED_IRQ 15
-#define ACPI_RESOURCE_TYPE_GENERIC_REGISTER 16
-#define ACPI_RESOURCE_TYPE_MAX 16
-
-union acpi_resource_data {
- struct acpi_resource_irq irq;
- struct acpi_resource_dma dma;
- struct acpi_resource_start_dependent start_dpf;
- struct acpi_resource_io io;
- struct acpi_resource_fixed_io fixed_io;
- struct acpi_resource_vendor vendor;
- struct acpi_resource_vendor_typed vendor_typed;
- struct acpi_resource_end_tag end_tag;
- struct acpi_resource_memory24 memory24;
- struct acpi_resource_memory32 memory32;
- struct acpi_resource_fixed_memory32 fixed_memory32;
- struct acpi_resource_address16 address16;
- struct acpi_resource_address32 address32;
- struct acpi_resource_address64 address64;
- struct acpi_resource_extended_address64 ext_address64;
- struct acpi_resource_extended_irq extended_irq;
- struct acpi_resource_generic_register generic_reg;
-
- /* Common fields */
-
- struct acpi_resource_address address; /* Common 16/32/64 address fields */
-};
-
-struct acpi_resource {
- u32 type;
- u32 length;
- union acpi_resource_data data;
-};
-
-/* restore default alignment */
-
-#pragma pack()
-
-#define ACPI_RS_SIZE_NO_DATA 8 /* Id + Length fields */
-#define ACPI_RS_SIZE_MIN (u32) ACPI_ROUND_UP_TO_NATIVE_WORD (12)
-#define ACPI_RS_SIZE(type) (u32) (ACPI_RS_SIZE_NO_DATA + sizeof (type))
-
-#define ACPI_NEXT_RESOURCE(res) (struct acpi_resource *)((u8 *) res + res->length)
-
-struct acpi_pci_routing_table {
- u32 length;
- u32 pin;
- acpi_integer address; /* here for 64-bit alignment */
- u32 source_index;
- char source[4]; /* pad to 64 bits so sizeof() works in all cases */
};
#endif /* __ACTYPES_H__ */
#ifndef __ACENV_H__
#define __ACENV_H__
-/*
+/* Types for ACPI_MUTEX_TYPE */
+
+#define ACPI_BINARY_SEMAPHORE 0
+#define ACPI_OSL_MUTEX 1
+
+/* Types for DEBUGGER_THREADING */
+
+#define DEBUGGER_SINGLE_THREADED 0
+#define DEBUGGER_MULTI_THREADED 1
+
+/******************************************************************************
+ *
* Configuration for ACPI tools and utilities
- */
+ *
+ *****************************************************************************/
#ifdef ACPI_LIBRARY
/*
* Note: The non-debug version of the acpi_library does not contain any
- * debug support, for minimimal size. The debug version uses ACPI_FULL_DEBUG
+ * debug support, for minimal size. The debug version uses ACPI_FULL_DEBUG
*/
#define ACPI_USE_LOCAL_CACHE
#endif
#define ACPI_DBG_TRACK_ALLOCATIONS
#endif
-#ifdef ACPI_DASM_APP
-#ifndef MSDOS
-#define ACPI_DEBUG_OUTPUT
-#endif
-#define ACPI_APPLICATION
-#define ACPI_DISASSEMBLER
-#define ACPI_NO_METHOD_EXECUTION
-#define ACPI_LARGE_NAMESPACE_NODE
-#define ACPI_DATA_TABLE_DISASSEMBLY
-#endif
-
#ifdef ACPI_APPLICATION
#define ACPI_USE_SYSTEM_CLIBRARY
#define ACPI_USE_LOCAL_CACHE
/*! [End] no source code translation !*/
+/******************************************************************************
+ *
+ * Miscellaneous configuration
+ *
+ *****************************************************************************/
+
+/*
+ * Are mutexes supported by the host? default is no, use binary semaphores.
+ */
+#ifndef ACPI_MUTEX_TYPE
+#define ACPI_MUTEX_TYPE ACPI_BINARY_SEMAPHORE
+#endif
+
/*
* Debugger threading model
* Use single threaded if the entire subsystem is contained in an application
* By default the model is single threaded if ACPI_APPLICATION is set,
* multi-threaded if ACPI_APPLICATION is not set.
*/
-#define DEBUGGER_SINGLE_THREADED 0
-#define DEBUGGER_MULTI_THREADED 1
-
#ifndef DEBUGGER_THREADING
#ifdef ACPI_APPLICATION
#define DEBUGGER_THREADING DEBUGGER_SINGLE_THREADED
#define ACPI_USE_SYSTEM_CLIBRARY
#define ACPI_USE_DO_WHILE_0
+#define ACPI_MUTEX_TYPE ACPI_BINARY_SEMAPHORE
#ifdef __KERNEL__
#define ACPI_EXPORT_SYMBOL(symbol) EXPORT_SYMBOL(symbol);
#define strtoul simple_strtoul
-/* Full namespace pathname length limit - arbitrary */
-#define ACPI_PATHNAME_MAX 256
-
#else /* !__KERNEL__ */
#include <stdarg.h>
*/
void acpi_unregister_gsi (u32 gsi);
-struct acpi_prt_entry {
- struct list_head node;
- struct acpi_pci_id id;
- u8 pin;
- struct {
- acpi_handle handle;
- u32 index;
- } link;
- u32 irq;
-};
-
-struct acpi_prt_list {
- int count;
- struct list_head entries;
-};
-
struct pci_dev;
int acpi_pci_irq_enable (struct pci_dev *dev);
#ifdef CONFIG_PM_SLEEP
void __init acpi_no_s4_hw_signature(void);
void __init acpi_old_suspend_ordering(void);
+void __init acpi_s4_no_nvs(void);
#endif /* CONFIG_PM_SLEEP */
#else /* CONFIG_ACPI */
};
#ifdef CONFIG_DMA_ENGINE
-void async_tx_issue_pending_all(void);
-enum dma_status dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx);
-void async_tx_run_dependencies(struct dma_async_tx_descriptor *tx);
+#define async_tx_issue_pending_all dma_issue_pending_all
#ifdef CONFIG_ARCH_HAS_ASYNC_TX_FIND_CHANNEL
#include <asm/async_tx.h>
#else
do { } while (0);
}
-static inline enum dma_status
-dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx)
-{
- return DMA_SUCCESS;
-}
-
-static inline void
-async_tx_run_dependencies(struct dma_async_tx_descriptor *tx,
- struct dma_chan *host_chan)
-{
- do { } while (0);
-}
-
static inline struct dma_chan *
async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx,
enum dma_transaction_type tx_type, struct page **dst, int dst_count,
#define ATMEL_MCI_MAX_NR_SLOTS 2
-struct dma_slave;
+#include <linux/dw_dmac.h>
/**
* struct mci_slot_pdata - board-specific per-slot configuration
/**
* struct mci_platform_data - board-specific MMC/SDcard configuration
- * @dma_slave: DMA slave interface to use in data transfers, or NULL.
+ * @dma_slave: DMA slave interface to use in data transfers.
* @slot: Per-slot configuration data.
*/
struct mci_platform_data {
- struct dma_slave *dma_slave;
+ struct dw_dma_slave dma_slave;
struct mci_slot_pdata slot[ATMEL_MCI_MAX_NR_SLOTS];
};
#include <linux/rcupdate.h>
#include <linux/dma-mapping.h>
-/**
- * enum dma_state - resource PNP/power management state
- * @DMA_RESOURCE_SUSPEND: DMA device going into low power state
- * @DMA_RESOURCE_RESUME: DMA device returning to full power
- * @DMA_RESOURCE_AVAILABLE: DMA device available to the system
- * @DMA_RESOURCE_REMOVED: DMA device removed from the system
- */
-enum dma_state {
- DMA_RESOURCE_SUSPEND,
- DMA_RESOURCE_RESUME,
- DMA_RESOURCE_AVAILABLE,
- DMA_RESOURCE_REMOVED,
-};
-
-/**
- * enum dma_state_client - state of the channel in the client
- * @DMA_ACK: client would like to use, or was using this channel
- * @DMA_DUP: client has already seen this channel, or is not using this channel
- * @DMA_NAK: client does not want to see any more channels
- */
-enum dma_state_client {
- DMA_ACK,
- DMA_DUP,
- DMA_NAK,
-};
-
/**
* typedef dma_cookie_t - an opaque DMA cookie
*
DMA_MEMSET,
DMA_MEMCPY_CRC32C,
DMA_INTERRUPT,
+ DMA_PRIVATE,
DMA_SLAVE,
};
/* last transaction type for creation of the capabilities mask */
#define DMA_TX_TYPE_END (DMA_SLAVE + 1)
-/**
- * enum dma_slave_width - DMA slave register access width.
- * @DMA_SLAVE_WIDTH_8BIT: Do 8-bit slave register accesses
- * @DMA_SLAVE_WIDTH_16BIT: Do 16-bit slave register accesses
- * @DMA_SLAVE_WIDTH_32BIT: Do 32-bit slave register accesses
- */
-enum dma_slave_width {
- DMA_SLAVE_WIDTH_8BIT,
- DMA_SLAVE_WIDTH_16BIT,
- DMA_SLAVE_WIDTH_32BIT,
-};
/**
* enum dma_ctrl_flags - DMA flags to augment operation preparation,
*/
typedef struct { DECLARE_BITMAP(bits, DMA_TX_TYPE_END); } dma_cap_mask_t;
-/**
- * struct dma_slave - Information about a DMA slave
- * @dev: device acting as DMA slave
- * @dma_dev: required DMA master device. If non-NULL, the client can not be
- * bound to other masters than this.
- * @tx_reg: physical address of data register used for
- * memory-to-peripheral transfers
- * @rx_reg: physical address of data register used for
- * peripheral-to-memory transfers
- * @reg_width: peripheral register width
- *
- * If dma_dev is non-NULL, the client can not be bound to other DMA
- * masters than the one corresponding to this device. The DMA master
- * driver may use this to determine if there is controller-specific
- * data wrapped around this struct. Drivers of platform code that sets
- * the dma_dev field must therefore make sure to use an appropriate
- * controller-specific dma slave structure wrapping this struct.
- */
-struct dma_slave {
- struct device *dev;
- struct device *dma_dev;
- dma_addr_t tx_reg;
- dma_addr_t rx_reg;
- enum dma_slave_width reg_width;
-};
-
/**
* struct dma_chan_percpu - the per-CPU part of struct dma_chan
* @refcount: local_t used for open-coded "bigref" counting
*/
struct dma_chan_percpu {
- local_t refcount;
/* stats */
unsigned long memcpy_count;
unsigned long bytes_transferred;
* @device: ptr to the dma device who supplies this channel, always !%NULL
* @cookie: last cookie value returned to client
* @chan_id: channel ID for sysfs
- * @class_dev: class device for sysfs
+ * @dev: class device for sysfs
* @refcount: kref, used in "bigref" slow-mode
* @slow_ref: indicates that the DMA channel is free
* @rcu: the DMA channel's RCU head
* @device_node: used to add this to the device chan list
* @local: per-cpu pointer to a struct dma_chan_percpu
* @client-count: how many clients are using this channel
+ * @table_count: number of appearances in the mem-to-mem allocation table
*/
struct dma_chan {
struct dma_device *device;
/* sysfs */
int chan_id;
- struct device dev;
-
- struct kref refcount;
- int slow_ref;
- struct rcu_head rcu;
+ struct dma_chan_dev *dev;
struct list_head device_node;
struct dma_chan_percpu *local;
int client_count;
+ int table_count;
};
-#define to_dma_chan(p) container_of(p, struct dma_chan, dev)
-
-void dma_chan_cleanup(struct kref *kref);
-
-static inline void dma_chan_get(struct dma_chan *chan)
-{
- if (unlikely(chan->slow_ref))
- kref_get(&chan->refcount);
- else {
- local_inc(&(per_cpu_ptr(chan->local, get_cpu())->refcount));
- put_cpu();
- }
-}
+/**
+ * struct dma_chan_dev - relate sysfs device node to backing channel device
+ * @chan - driver channel device
+ * @device - sysfs device
+ * @dev_id - parent dma_device dev_id
+ * @idr_ref - reference count to gate release of dma_device dev_id
+ */
+struct dma_chan_dev {
+ struct dma_chan *chan;
+ struct device device;
+ int dev_id;
+ atomic_t *idr_ref;
+};
-static inline void dma_chan_put(struct dma_chan *chan)
+static inline const char *dma_chan_name(struct dma_chan *chan)
{
- if (unlikely(chan->slow_ref))
- kref_put(&chan->refcount, dma_chan_cleanup);
- else {
- local_dec(&(per_cpu_ptr(chan->local, get_cpu())->refcount));
- put_cpu();
- }
+ return dev_name(&chan->dev->device);
}
-/*
- * typedef dma_event_callback - function pointer to a DMA event callback
- * For each channel added to the system this routine is called for each client.
- * If the client would like to use the channel it returns '1' to signal (ack)
- * the dmaengine core to take out a reference on the channel and its
- * corresponding device. A client must not 'ack' an available channel more
- * than once. When a channel is removed all clients are notified. If a client
- * is using the channel it must 'ack' the removal. A client must not 'ack' a
- * removed channel more than once.
- * @client - 'this' pointer for the client context
- * @chan - channel to be acted upon
- * @state - available or removed
- */
-struct dma_client;
-typedef enum dma_state_client (*dma_event_callback) (struct dma_client *client,
- struct dma_chan *chan, enum dma_state state);
+void dma_chan_cleanup(struct kref *kref);
/**
- * struct dma_client - info on the entity making use of DMA services
- * @event_callback: func ptr to call when something happens
- * @cap_mask: only return channels that satisfy the requested capabilities
- * a value of zero corresponds to any capability
- * @slave: data for preparing slave transfer. Must be non-NULL iff the
- * DMA_SLAVE capability is requested.
- * @global_node: list_head for global dma_client_list
+ * typedef dma_filter_fn - callback filter for dma_request_channel
+ * @chan: channel to be reviewed
+ * @filter_param: opaque parameter passed through dma_request_channel
+ *
+ * When this optional parameter is specified in a call to dma_request_channel a
+ * suitable channel is passed to this routine for further dispositioning before
+ * being returned. Where 'suitable' indicates a non-busy channel that
+ * satisfies the given capability mask. It returns 'true' to indicate that the
+ * channel is suitable.
*/
-struct dma_client {
- dma_event_callback event_callback;
- dma_cap_mask_t cap_mask;
- struct dma_slave *slave;
- struct list_head global_node;
-};
+typedef bool (*dma_filter_fn)(struct dma_chan *chan, void *filter_param);
typedef void (*dma_async_tx_callback)(void *dma_async_param);
/**
dma_cap_mask_t cap_mask;
int max_xor;
- struct kref refcount;
- struct completion done;
-
int dev_id;
struct device *dev;
- int (*device_alloc_chan_resources)(struct dma_chan *chan,
- struct dma_client *client);
+ int (*device_alloc_chan_resources)(struct dma_chan *chan);
void (*device_free_chan_resources)(struct dma_chan *chan);
struct dma_async_tx_descriptor *(*device_prep_dma_memcpy)(
/* --- public DMA engine API --- */
-void dma_async_client_register(struct dma_client *client);
-void dma_async_client_unregister(struct dma_client *client);
-void dma_async_client_chan_request(struct dma_client *client);
+void dmaengine_get(void);
+void dmaengine_put(void);
dma_cookie_t dma_async_memcpy_buf_to_buf(struct dma_chan *chan,
void *dest, void *src, size_t len);
dma_cookie_t dma_async_memcpy_buf_to_pg(struct dma_chan *chan,
set_bit(tx_type, dstp->bits);
}
+#define dma_cap_zero(mask) __dma_cap_zero(&(mask))
+static inline void __dma_cap_zero(dma_cap_mask_t *dstp)
+{
+ bitmap_zero(dstp->bits, DMA_TX_TYPE_END);
+}
+
#define dma_has_cap(tx, mask) __dma_has_cap((tx), &(mask))
static inline int
__dma_has_cap(enum dma_transaction_type tx_type, dma_cap_mask_t *srcp)
}
enum dma_status dma_sync_wait(struct dma_chan *chan, dma_cookie_t cookie);
+#ifdef CONFIG_DMA_ENGINE
+enum dma_status dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx);
+#else
+static inline enum dma_status dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx)
+{
+ return DMA_SUCCESS;
+}
+#endif
/* --- DMA device --- */
int dma_async_device_register(struct dma_device *device);
void dma_async_device_unregister(struct dma_device *device);
+void dma_run_dependencies(struct dma_async_tx_descriptor *tx);
+struct dma_chan *dma_find_channel(enum dma_transaction_type tx_type);
+void dma_issue_pending_all(void);
+#define dma_request_channel(mask, x, y) __dma_request_channel(&(mask), x, y)
+struct dma_chan *__dma_request_channel(dma_cap_mask_t *mask, dma_filter_fn fn, void *fn_param);
+void dma_release_channel(struct dma_chan *chan);
/* --- Helper iov-locking functions --- */
unsigned int nr_channels;
};
+/**
+ * enum dw_dma_slave_width - DMA slave register access width.
+ * @DMA_SLAVE_WIDTH_8BIT: Do 8-bit slave register accesses
+ * @DMA_SLAVE_WIDTH_16BIT: Do 16-bit slave register accesses
+ * @DMA_SLAVE_WIDTH_32BIT: Do 32-bit slave register accesses
+ */
+enum dw_dma_slave_width {
+ DW_DMA_SLAVE_WIDTH_8BIT,
+ DW_DMA_SLAVE_WIDTH_16BIT,
+ DW_DMA_SLAVE_WIDTH_32BIT,
+};
+
/**
* struct dw_dma_slave - Controller-specific information about a slave
- * @slave: Generic information about the slave
- * @ctl_lo: Platform-specific initializer for the CTL_LO register
+ *
+ * @dma_dev: required DMA master device
+ * @tx_reg: physical address of data register used for
+ * memory-to-peripheral transfers
+ * @rx_reg: physical address of data register used for
+ * peripheral-to-memory transfers
+ * @reg_width: peripheral register width
* @cfg_hi: Platform-specific initializer for the CFG_HI register
* @cfg_lo: Platform-specific initializer for the CFG_LO register
*/
struct dw_dma_slave {
- struct dma_slave slave;
+ struct device *dma_dev;
+ dma_addr_t tx_reg;
+ dma_addr_t rx_reg;
+ enum dw_dma_slave_width reg_width;
u32 cfg_hi;
u32 cfg_lo;
};
#define DWC_CFGL_HS_DST_POL (1 << 18) /* dst handshake active low */
#define DWC_CFGL_HS_SRC_POL (1 << 19) /* src handshake active low */
-static inline struct dw_dma_slave *to_dw_dma_slave(struct dma_slave *slave)
-{
- return container_of(slave, struct dw_dma_slave, slave);
-}
-
#endif /* DW_DMAC_H */
#define CFI_MFR_AMD 0x0001
#define CFI_MFR_ATMEL 0x001F
+#define CFI_MFR_SAMSUNG 0x00EC
#define CFI_MFR_ST 0x0020 /* STMicroelectronics */
void cfi_fixup(struct mtd_info *mtd, struct cfi_fixup* fixups);
#define _LINUX_FTL_H
typedef struct erase_unit_header_t {
- u_int8_t LinkTargetTuple[5];
- u_int8_t DataOrgTuple[10];
- u_int8_t NumTransferUnits;
- u_int32_t EraseCount;
- u_int16_t LogicalEUN;
- u_int8_t BlockSize;
- u_int8_t EraseUnitSize;
- u_int16_t FirstPhysicalEUN;
- u_int16_t NumEraseUnits;
- u_int32_t FormattedSize;
- u_int32_t FirstVMAddress;
- u_int16_t NumVMPages;
- u_int8_t Flags;
- u_int8_t Code;
- u_int32_t SerialNumber;
- u_int32_t AltEUHOffset;
- u_int32_t BAMOffset;
- u_int8_t Reserved[12];
- u_int8_t EndTuple[2];
+ uint8_t LinkTargetTuple[5];
+ uint8_t DataOrgTuple[10];
+ uint8_t NumTransferUnits;
+ uint32_t EraseCount;
+ uint16_t LogicalEUN;
+ uint8_t BlockSize;
+ uint8_t EraseUnitSize;
+ uint16_t FirstPhysicalEUN;
+ uint16_t NumEraseUnits;
+ uint32_t FormattedSize;
+ uint32_t FirstVMAddress;
+ uint16_t NumVMPages;
+ uint8_t Flags;
+ uint8_t Code;
+ uint32_t SerialNumber;
+ uint32_t AltEUHOffset;
+ uint32_t BAMOffset;
+ uint8_t Reserved[12];
+ uint8_t EndTuple[2];
} erase_unit_header_t;
/* Flags in erase_unit_header_t */
must leave it enabled. */
void (*set_vpp)(struct map_info *, int);
+ unsigned long pfow_base;
unsigned long map_priv_1;
unsigned long map_priv_2;
void *fldrv_priv;
#include <linux/mtd/compatmac.h>
#include <mtd/mtd-abi.h>
+#include <asm/div64.h>
+
#define MTD_CHAR_MAJOR 90
#define MTD_BLOCK_MAJOR 31
#define MAX_MTD_DEVICES 32
#define MTD_ERASE_DONE 0x08
#define MTD_ERASE_FAILED 0x10
-#define MTD_FAIL_ADDR_UNKNOWN 0xffffffff
+#define MTD_FAIL_ADDR_UNKNOWN -1LL
/* If the erase fails, fail_addr might indicate exactly which block failed. If
fail_addr = MTD_FAIL_ADDR_UNKNOWN, the failure was not at the device level or was not
specific to any particular block. */
struct erase_info {
struct mtd_info *mtd;
- u_int32_t addr;
- u_int32_t len;
- u_int32_t fail_addr;
+ uint64_t addr;
+ uint64_t len;
+ uint64_t fail_addr;
u_long time;
u_long retries;
- u_int dev;
- u_int cell;
+ unsigned dev;
+ unsigned cell;
void (*callback) (struct erase_info *self);
u_long priv;
u_char state;
};
struct mtd_erase_region_info {
- u_int32_t offset; /* At which this region starts, from the beginning of the MTD */
- u_int32_t erasesize; /* For this region */
- u_int32_t numblocks; /* Number of blocks of erasesize in this region */
+ uint64_t offset; /* At which this region starts, from the beginning of the MTD */
+ uint32_t erasesize; /* For this region */
+ uint32_t numblocks; /* Number of blocks of erasesize in this region */
unsigned long *lockmap; /* If keeping bitmap of locks */
};
struct mtd_info {
u_char type;
- u_int32_t flags;
- u_int32_t size; // Total size of the MTD
+ uint32_t flags;
+ uint64_t size; // Total size of the MTD
/* "Major" erase size for the device. Naïve users may take this
* to be the only erase size available, or may use the more detailed
* information below if they desire
*/
- u_int32_t erasesize;
+ uint32_t erasesize;
/* Minimal writable flash unit size. In case of NOR flash it is 1 (even
* though individual bits can be cleared), in case of NAND flash it is
* one NAND page (or half, or one-fourths of it), in case of ECC-ed NOR
* Any driver registering a struct mtd_info must ensure a writesize of
* 1 or larger.
*/
- u_int32_t writesize;
+ uint32_t writesize;
+
+ uint32_t oobsize; // Amount of OOB data per block (e.g. 16)
+ uint32_t oobavail; // Available OOB bytes per block
- u_int32_t oobsize; // Amount of OOB data per block (e.g. 16)
- u_int32_t oobavail; // Available OOB bytes per block
+ /*
+ * If erasesize is a power of 2 then the shift is stored in
+ * erasesize_shift otherwise erasesize_shift is zero. Ditto writesize.
+ */
+ unsigned int erasesize_shift;
+ unsigned int writesize_shift;
+ /* Masks based on erasesize_shift and writesize_shift */
+ unsigned int erasesize_mask;
+ unsigned int writesize_mask;
// Kernel-only stuff starts here.
const char *name;
void (*sync) (struct mtd_info *mtd);
/* Chip-supported device locking */
- int (*lock) (struct mtd_info *mtd, loff_t ofs, size_t len);
- int (*unlock) (struct mtd_info *mtd, loff_t ofs, size_t len);
+ int (*lock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
+ int (*unlock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
/* Power Management functions */
int (*suspend) (struct mtd_info *mtd);
void (*put_device) (struct mtd_info *mtd);
};
+static inline uint32_t mtd_div_by_eb(uint64_t sz, struct mtd_info *mtd)
+{
+ if (mtd->erasesize_shift)
+ return sz >> mtd->erasesize_shift;
+ do_div(sz, mtd->erasesize);
+ return sz;
+}
+
+static inline uint32_t mtd_mod_by_eb(uint64_t sz, struct mtd_info *mtd)
+{
+ if (mtd->erasesize_shift)
+ return sz & mtd->erasesize_mask;
+ return do_div(sz, mtd->erasesize);
+}
+
+static inline uint32_t mtd_div_by_ws(uint64_t sz, struct mtd_info *mtd)
+{
+ if (mtd->writesize_shift)
+ return sz >> mtd->writesize_shift;
+ do_div(sz, mtd->writesize);
+ return sz;
+}
+
+static inline uint32_t mtd_mod_by_ws(uint64_t sz, struct mtd_info *mtd)
+{
+ if (mtd->writesize_shift)
+ return sz & mtd->writesize_mask;
+ return do_div(sz, mtd->writesize);
+}
/* Kernel-side ioctl definitions */
* @erase_cmd: [INTERN] erase command write function, selectable due to AND support
* @scan_bbt: [REPLACEABLE] function to scan bad block table
* @chip_delay: [BOARDSPECIFIC] chip dependent delay for transfering data from array to read regs (tR)
- * @wq: [INTERN] wait queue to sleep on if a NAND operation is in progress
* @state: [INTERN] the current state of the NAND device
* @oob_poi: poison value buffer
* @page_shift: [INTERN] number of address bits in a page (column address bits)
* @phys_erase_shift: [INTERN] number of address bits in a physical eraseblock
* @bbt_erase_shift: [INTERN] number of address bits in a bbt entry
* @chip_shift: [INTERN] number of address bits in one chip
- * @datbuf: [INTERN] internal buffer for one page + oob
- * @oobbuf: [INTERN] oob buffer for one eraseblock
- * @oobdirty: [INTERN] indicates that oob_buf must be reinitialized
- * @data_poi: [INTERN] pointer to a data buffer
* @options: [BOARDSPECIFIC] various chip options. They can partly be set to inform nand_scan about
* special functionality. See the defines for further explanation
* @badblockpos: [INTERN] position of the bad block marker in the oob area
int bbt_erase_shift;
int chip_shift;
int numchips;
- unsigned long chipsize;
+ uint64_t chipsize;
int pagemask;
int pagebuf;
int subpagesize;
struct mtd_partition {
char *name; /* identifier string */
- u_int32_t size; /* partition size */
- u_int32_t offset; /* offset within the master MTD space */
- u_int32_t mask_flags; /* master MTD flags to mask out for this partition */
+ uint64_t size; /* partition size */
+ uint64_t offset; /* offset within the master MTD space */
+ uint32_t mask_flags; /* master MTD flags to mask out for this partition */
struct nand_ecclayout *ecclayout; /* out of band layout for this partition (NAND only)*/
struct mtd_info **mtdp; /* pointer to store the MTD object */
};
--- /dev/null
+/* Primary function overlay window definitions
+ * and service functions used by LPDDR chips
+ */
+#ifndef __LINUX_MTD_PFOW_H
+#define __LINUX_MTD_PFOW_H
+
+#include <linux/mtd/qinfo.h>
+
+/* PFOW registers addressing */
+/* Address of symbol "P" */
+#define PFOW_QUERY_STRING_P 0x0000
+/* Address of symbol "F" */
+#define PFOW_QUERY_STRING_F 0x0002
+/* Address of symbol "O" */
+#define PFOW_QUERY_STRING_O 0x0004
+/* Address of symbol "W" */
+#define PFOW_QUERY_STRING_W 0x0006
+/* Identification info for LPDDR chip */
+#define PFOW_MANUFACTURER_ID 0x0020
+#define PFOW_DEVICE_ID 0x0022
+/* Address in PFOW where prog buffer can can be found */
+#define PFOW_PROGRAM_BUFFER_OFFSET 0x0040
+/* Size of program buffer in words */
+#define PFOW_PROGRAM_BUFFER_SIZE 0x0042
+/* Address command code register */
+#define PFOW_COMMAND_CODE 0x0080
+/* command data register */
+#define PFOW_COMMAND_DATA 0x0084
+/* command address register lower address bits */
+#define PFOW_COMMAND_ADDRESS_L 0x0088
+/* command address register upper address bits */
+#define PFOW_COMMAND_ADDRESS_H 0x008a
+/* number of bytes to be proggrammed lower address bits */
+#define PFOW_DATA_COUNT_L 0x0090
+/* number of bytes to be proggrammed higher address bits */
+#define PFOW_DATA_COUNT_H 0x0092
+/* command execution register, the only possible value is 0x01 */
+#define PFOW_COMMAND_EXECUTE 0x00c0
+/* 0x01 should be written at this address to clear buffer */
+#define PFOW_CLEAR_PROGRAM_BUFFER 0x00c4
+/* device program/erase suspend register */
+#define PFOW_PROGRAM_ERASE_SUSPEND 0x00c8
+/* device status register */
+#define PFOW_DSR 0x00cc
+
+/* LPDDR memory device command codes */
+/* They are possible values of PFOW command code register */
+#define LPDDR_WORD_PROGRAM 0x0041
+#define LPDDR_BUFF_PROGRAM 0x00E9
+#define LPDDR_BLOCK_ERASE 0x0020
+#define LPDDR_LOCK_BLOCK 0x0061
+#define LPDDR_UNLOCK_BLOCK 0x0062
+#define LPDDR_READ_BLOCK_LOCK_STATUS 0x0065
+#define LPDDR_INFO_QUERY 0x0098
+#define LPDDR_READ_OTP 0x0097
+#define LPDDR_PROG_OTP 0x00C0
+#define LPDDR_RESUME 0x00D0
+
+/* Defines possible value of PFOW command execution register */
+#define LPDDR_START_EXECUTION 0x0001
+
+/* Defines possible value of PFOW program/erase suspend register */
+#define LPDDR_SUSPEND 0x0001
+
+/* Possible values of PFOW device status register */
+/* access R - read; RC read & clearable */
+#define DSR_DPS (1<<1) /* RC; device protect status
+ * 0 - not protected 1 - locked */
+#define DSR_PSS (1<<2) /* R; program suspend status;
+ * 0-prog in progress/completed,
+ * 1- prog suspended */
+#define DSR_VPPS (1<<3) /* RC; 0-Vpp OK, * 1-Vpp low */
+#define DSR_PROGRAM_STATUS (1<<4) /* RC; 0-successful, 1-error */
+#define DSR_ERASE_STATUS (1<<5) /* RC; erase or blank check status;
+ * 0-success erase/blank check,
+ * 1 blank check error */
+#define DSR_ESS (1<<6) /* R; erase suspend status;
+ * 0-erase in progress/complete,
+ * 1 erase suspended */
+#define DSR_READY_STATUS (1<<7) /* R; Device status
+ * 0-busy,
+ * 1-ready */
+#define DSR_RPS (0x3<<8) /* RC; region program status
+ * 00 - Success,
+ * 01-re-program attempt in region with
+ * object mode data,
+ * 10-object mode program w attempt in
+ * region with control mode data
+ * 11-attempt to program invalid half
+ * with 0x41 command */
+#define DSR_AOS (1<<12) /* RC; 1- AO related failure */
+#define DSR_AVAILABLE (1<<15) /* R; Device availbility
+ * 1 - Device available
+ * 0 - not available */
+
+/* The superset of all possible error bits in DSR */
+#define DSR_ERR 0x133A
+
+static inline void send_pfow_command(struct map_info *map,
+ unsigned long cmd_code, unsigned long adr,
+ unsigned long len, map_word *datum)
+{
+ int bits_per_chip = map_bankwidth(map) * 8;
+ int chipnum;
+ struct lpddr_private *lpddr = map->fldrv_priv;
+ chipnum = adr >> lpddr->chipshift;
+
+ map_write(map, CMD(cmd_code), map->pfow_base + PFOW_COMMAND_CODE);
+ map_write(map, CMD(adr & ((1<<bits_per_chip) - 1)),
+ map->pfow_base + PFOW_COMMAND_ADDRESS_L);
+ map_write(map, CMD(adr>>bits_per_chip),
+ map->pfow_base + PFOW_COMMAND_ADDRESS_H);
+ if (len) {
+ map_write(map, CMD(len & ((1<<bits_per_chip) - 1)),
+ map->pfow_base + PFOW_DATA_COUNT_L);
+ map_write(map, CMD(len>>bits_per_chip),
+ map->pfow_base + PFOW_DATA_COUNT_H);
+ }
+ if (datum)
+ map_write(map, *datum, map->pfow_base + PFOW_COMMAND_DATA);
+
+ /* Command execution start */
+ map_write(map, CMD(LPDDR_START_EXECUTION),
+ map->pfow_base + PFOW_COMMAND_EXECUTE);
+}
+
+static inline void print_drs_error(unsigned dsr)
+{
+ int prog_status = (dsr & DSR_RPS) >> 8;
+
+ if (!(dsr & DSR_AVAILABLE))
+ printk(KERN_NOTICE"DSR.15: (0) Device not Available\n");
+ if (prog_status & 0x03)
+ printk(KERN_NOTICE"DSR.9,8: (11) Attempt to program invalid "
+ "half with 41h command\n");
+ else if (prog_status & 0x02)
+ printk(KERN_NOTICE"DSR.9,8: (10) Object Mode Program attempt "
+ "in region with Control Mode data\n");
+ else if (prog_status & 0x01)
+ printk(KERN_NOTICE"DSR.9,8: (01) Program attempt in region "
+ "with Object Mode data\n");
+ if (!(dsr & DSR_READY_STATUS))
+ printk(KERN_NOTICE"DSR.7: (0) Device is Busy\n");
+ if (dsr & DSR_ESS)
+ printk(KERN_NOTICE"DSR.6: (1) Erase Suspended\n");
+ if (dsr & DSR_ERASE_STATUS)
+ printk(KERN_NOTICE"DSR.5: (1) Erase/Blank check error\n");
+ if (dsr & DSR_PROGRAM_STATUS)
+ printk(KERN_NOTICE"DSR.4: (1) Program Error\n");
+ if (dsr & DSR_VPPS)
+ printk(KERN_NOTICE"DSR.3: (1) Vpp low detect, operation "
+ "aborted\n");
+ if (dsr & DSR_PSS)
+ printk(KERN_NOTICE"DSR.2: (1) Program suspended\n");
+ if (dsr & DSR_DPS)
+ printk(KERN_NOTICE"DSR.1: (1) Aborted Erase/Program attempt "
+ "on locked block\n");
+}
+#endif /* __LINUX_MTD_PFOW_H */
unsigned int width;
void (*set_vpp)(struct map_info *, int);
unsigned int nr_parts;
+ unsigned int pfow_base;
struct mtd_partition *parts;
};
--- /dev/null
+#ifndef __LINUX_MTD_QINFO_H
+#define __LINUX_MTD_QINFO_H
+
+#include <linux/mtd/map.h>
+#include <linux/wait.h>
+#include <linux/spinlock.h>
+#include <linux/delay.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/flashchip.h>
+#include <linux/mtd/partitions.h>
+
+/* lpddr_private describes lpddr flash chip in memory map
+ * @ManufactId - Chip Manufacture ID
+ * @DevId - Chip Device ID
+ * @qinfo - pointer to qinfo records describing the chip
+ * @numchips - number of chips including virual RWW partitions
+ * @chipshift - Chip/partiton size 2^chipshift
+ * @chips - per-chip data structure
+ */
+struct lpddr_private {
+ uint16_t ManufactId;
+ uint16_t DevId;
+ struct qinfo_chip *qinfo;
+ int numchips;
+ unsigned long chipshift;
+ struct flchip chips[0];
+};
+
+/* qinfo_query_info structure contains request information for
+ * each qinfo record
+ * @major - major number of qinfo record
+ * @major - minor number of qinfo record
+ * @id_str - descriptive string to access the record
+ * @desc - detailed description for the qinfo record
+ */
+struct qinfo_query_info {
+ uint8_t major;
+ uint8_t minor;
+ char *id_str;
+ char *desc;
+};
+
+/*
+ * qinfo_chip structure contains necessary qinfo records data
+ * @DevSizeShift - Device size 2^n bytes
+ * @BufSizeShift - Program buffer size 2^n bytes
+ * @TotalBlocksNum - Total number of blocks
+ * @UniformBlockSizeShift - Uniform block size 2^UniformBlockSizeShift bytes
+ * @HWPartsNum - Number of hardware partitions
+ * @SuspEraseSupp - Suspend erase supported
+ * @SingleWordProgTime - Single word program 2^SingleWordProgTime u-sec
+ * @ProgBufferTime - Program buffer write 2^ProgBufferTime u-sec
+ * @BlockEraseTime - Block erase 2^BlockEraseTime m-sec
+ */
+struct qinfo_chip {
+ /* General device info */
+ uint16_t DevSizeShift;
+ uint16_t BufSizeShift;
+ /* Erase block information */
+ uint16_t TotalBlocksNum;
+ uint16_t UniformBlockSizeShift;
+ /* Partition information */
+ uint16_t HWPartsNum;
+ /* Optional features */
+ uint16_t SuspEraseSupp;
+ /* Operation typical time */
+ uint16_t SingleWordProgTime;
+ uint16_t ProgBufferTime;
+ uint16_t BlockEraseTime;
+};
+
+/* defines for fixup usage */
+#define LPDDR_MFR_ANY 0xffff
+#define LPDDR_ID_ANY 0xffff
+#define NUMONYX_MFGR_ID 0x0089
+#define R18_DEVICE_ID_1G 0x893c
+
+static inline map_word lpddr_build_cmd(u_long cmd, struct map_info *map)
+{
+ map_word val = { {0} };
+ val.x[0] = cmd;
+ return val;
+}
+
+#define CMD(x) lpddr_build_cmd(x, map)
+#define CMDVAL(cmd) cmd.x[0]
+
+struct mtd_info *lpddr_cmdset(struct map_info *);
+
+#endif
+
--- /dev/null
+/*
+ * SharpSL NAND support
+ *
+ * Copyright (C) 2008 Dmitry Baryshkov
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/mtd/nand.h>
+#include <linux/mtd/nand_ecc.h>
+#include <linux/mtd/partitions.h>
+
+struct sharpsl_nand_platform_data {
+ struct nand_bbt_descr *badblock_pattern;
+ struct nand_ecclayout *ecc_layout;
+ struct mtd_partition *partitions;
+ unsigned int nr_partitions;
+};
struct sk_buff *completion_queue;
struct napi_struct backlog;
-#ifdef CONFIG_NET_DMA
- struct dma_chan *net_dma;
-#endif
};
DECLARE_PER_CPU(struct softnet_data,softnet_data);
unsigned long oprofile_get_cpu_buffer_size(void);
void oprofile_cpu_buffer_inc_smpl_lost(void);
+/* cpu buffer functions */
+
+struct op_sample;
+
+struct op_entry {
+ struct ring_buffer_event *event;
+ struct op_sample *sample;
+ unsigned long irq_flags;
+ unsigned long size;
+ unsigned long *data;
+};
+
+void oprofile_write_reserve(struct op_entry *entry,
+ struct pt_regs * const regs,
+ unsigned long pc, int code, int size);
+int oprofile_add_data(struct op_entry *entry, unsigned long val);
+int oprofile_write_commit(struct op_entry *entry);
+
#endif /* OPROFILE_H */
#ifdef CONFIG_ACPI
#include <acpi/acpi.h>
#include <acpi/acpi_bus.h>
-#include <acpi/actypes.h>
extern acpi_status acpi_get_hp_params_from_firmware(struct pci_bus *bus,
struct hotplug_params *hpp);
int acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev, u32 flags);
extern void hibernation_set_ops(struct platform_hibernation_ops *ops);
extern int hibernate(void);
+extern int hibernate_nvs_register(unsigned long start, unsigned long size);
+extern int hibernate_nvs_alloc(void);
+extern void hibernate_nvs_free(void);
+extern void hibernate_nvs_save(void);
+extern void hibernate_nvs_restore(void);
#else /* CONFIG_HIBERNATION */
static inline int swsusp_page_is_forbidden(struct page *p) { return 0; }
static inline void swsusp_set_page_free(struct page *p) {}
static inline void hibernation_set_ops(struct platform_hibernation_ops *ops) {}
static inline int hibernate(void) { return -ENOSYS; }
+static inline int hibernate_nvs_register(unsigned long a, unsigned long b)
+{
+ return 0;
+}
+static inline int hibernate_nvs_alloc(void) { return 0; }
+static inline void hibernate_nvs_free(void) {}
+static inline void hibernate_nvs_save(void) {}
+static inline void hibernate_nvs_restore(void) {}
#endif /* CONFIG_HIBERNATION */
#ifdef CONFIG_PM_SLEEP
#include <linux/dmaengine.h>
#include <linux/skbuff.h>
-static inline struct dma_chan *get_softnet_dma(void)
-{
- struct dma_chan *chan;
- rcu_read_lock();
- chan = rcu_dereference(__get_cpu_var(softnet_data).net_dma);
- if (chan)
- dma_chan_get(chan);
- rcu_read_unlock();
- return chan;
-}
-
int dma_skb_copy_datagram_iovec(struct dma_chan* chan,
struct sk_buff *skb, int offset, struct iovec *to,
size_t len, struct dma_pinned_list *pinned_list);
else
old = get_cred(&init_cred);
+ *new = *old;
get_uid(new->user);
get_group_info(new->group_info);
error:
put_cred(new);
+ put_cred(old);
return NULL;
}
EXPORT_SYMBOL(prepare_kernel_cred);
{
int error;
- /* Free memory before shutting down devices. */
- error = swsusp_shrink_memory();
+ error = platform_begin(platform_mode);
if (error)
return error;
- error = platform_begin(platform_mode);
+ /* Free memory before shutting down devices. */
+ error = swsusp_shrink_memory();
if (error)
goto Close;
#include <linux/syscalls.h>
#include <linux/console.h>
#include <linux/highmem.h>
+#include <linux/list.h>
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
return ret;
}
-static void chain_free(struct chain_allocator *ca, int clear_page_nosave)
-{
- free_list_of_pages(ca->chain, clear_page_nosave);
- memset(ca, 0, sizeof(struct chain_allocator));
-}
-
/**
* Data types related to memory bitmaps.
*
#define BM_BITS_PER_BLOCK (PAGE_SIZE << 3)
struct bm_block {
- struct bm_block *next; /* next element of the list */
+ struct list_head hook; /* hook into a list of bitmap blocks */
unsigned long start_pfn; /* pfn represented by the first bit */
unsigned long end_pfn; /* pfn represented by the last bit plus 1 */
unsigned long *data; /* bitmap representing pages */
return bb->end_pfn - bb->start_pfn;
}
-struct zone_bitmap {
- struct zone_bitmap *next; /* next element of the list */
- unsigned long start_pfn; /* minimal pfn in this zone */
- unsigned long end_pfn; /* maximal pfn in this zone plus 1 */
- struct bm_block *bm_blocks; /* list of bitmap blocks */
- struct bm_block *cur_block; /* recently used bitmap block */
-};
-
/* strcut bm_position is used for browsing memory bitmaps */
struct bm_position {
- struct zone_bitmap *zone_bm;
struct bm_block *block;
int bit;
};
struct memory_bitmap {
- struct zone_bitmap *zone_bm_list; /* list of zone bitmaps */
+ struct list_head blocks; /* list of bitmap blocks */
struct linked_page *p_list; /* list of pages used to store zone
* bitmap objects and bitmap block
* objects
static void memory_bm_position_reset(struct memory_bitmap *bm)
{
- struct zone_bitmap *zone_bm;
-
- zone_bm = bm->zone_bm_list;
- bm->cur.zone_bm = zone_bm;
- bm->cur.block = zone_bm->bm_blocks;
+ bm->cur.block = list_entry(bm->blocks.next, struct bm_block, hook);
bm->cur.bit = 0;
}
/**
* create_bm_block_list - create a list of block bitmap objects
+ * @nr_blocks - number of blocks to allocate
+ * @list - list to put the allocated blocks into
+ * @ca - chain allocator to be used for allocating memory
*/
-
-static inline struct bm_block *
-create_bm_block_list(unsigned int nr_blocks, struct chain_allocator *ca)
+static int create_bm_block_list(unsigned long pages,
+ struct list_head *list,
+ struct chain_allocator *ca)
{
- struct bm_block *bblist = NULL;
+ unsigned int nr_blocks = DIV_ROUND_UP(pages, BM_BITS_PER_BLOCK);
while (nr_blocks-- > 0) {
struct bm_block *bb;
bb = chain_alloc(ca, sizeof(struct bm_block));
if (!bb)
- return NULL;
-
- bb->next = bblist;
- bblist = bb;
+ return -ENOMEM;
+ list_add(&bb->hook, list);
}
- return bblist;
+
+ return 0;
}
+struct mem_extent {
+ struct list_head hook;
+ unsigned long start;
+ unsigned long end;
+};
+
/**
- * create_zone_bm_list - create a list of zone bitmap objects
+ * free_mem_extents - free a list of memory extents
+ * @list - list of extents to empty
*/
+static void free_mem_extents(struct list_head *list)
+{
+ struct mem_extent *ext, *aux;
-static inline struct zone_bitmap *
-create_zone_bm_list(unsigned int nr_zones, struct chain_allocator *ca)
+ list_for_each_entry_safe(ext, aux, list, hook) {
+ list_del(&ext->hook);
+ kfree(ext);
+ }
+}
+
+/**
+ * create_mem_extents - create a list of memory extents representing
+ * contiguous ranges of PFNs
+ * @list - list to put the extents into
+ * @gfp_mask - mask to use for memory allocations
+ */
+static int create_mem_extents(struct list_head *list, gfp_t gfp_mask)
{
- struct zone_bitmap *zbmlist = NULL;
+ struct zone *zone;
- while (nr_zones-- > 0) {
- struct zone_bitmap *zbm;
+ INIT_LIST_HEAD(list);
- zbm = chain_alloc(ca, sizeof(struct zone_bitmap));
- if (!zbm)
- return NULL;
+ for_each_zone(zone) {
+ unsigned long zone_start, zone_end;
+ struct mem_extent *ext, *cur, *aux;
+
+ if (!populated_zone(zone))
+ continue;
- zbm->next = zbmlist;
- zbmlist = zbm;
+ zone_start = zone->zone_start_pfn;
+ zone_end = zone->zone_start_pfn + zone->spanned_pages;
+
+ list_for_each_entry(ext, list, hook)
+ if (zone_start <= ext->end)
+ break;
+
+ if (&ext->hook == list || zone_end < ext->start) {
+ /* New extent is necessary */
+ struct mem_extent *new_ext;
+
+ new_ext = kzalloc(sizeof(struct mem_extent), gfp_mask);
+ if (!new_ext) {
+ free_mem_extents(list);
+ return -ENOMEM;
+ }
+ new_ext->start = zone_start;
+ new_ext->end = zone_end;
+ list_add_tail(&new_ext->hook, &ext->hook);
+ continue;
+ }
+
+ /* Merge this zone's range of PFNs with the existing one */
+ if (zone_start < ext->start)
+ ext->start = zone_start;
+ if (zone_end > ext->end)
+ ext->end = zone_end;
+
+ /* More merging may be possible */
+ cur = ext;
+ list_for_each_entry_safe_continue(cur, aux, list, hook) {
+ if (zone_end < cur->start)
+ break;
+ if (zone_end < cur->end)
+ ext->end = cur->end;
+ list_del(&cur->hook);
+ kfree(cur);
+ }
}
- return zbmlist;
+
+ return 0;
}
/**
* memory_bm_create - allocate memory for a memory bitmap
*/
-
static int
memory_bm_create(struct memory_bitmap *bm, gfp_t gfp_mask, int safe_needed)
{
struct chain_allocator ca;
- struct zone *zone;
- struct zone_bitmap *zone_bm;
- struct bm_block *bb;
- unsigned int nr;
+ struct list_head mem_extents;
+ struct mem_extent *ext;
+ int error;
chain_init(&ca, gfp_mask, safe_needed);
+ INIT_LIST_HEAD(&bm->blocks);
- /* Compute the number of zones */
- nr = 0;
- for_each_zone(zone)
- if (populated_zone(zone))
- nr++;
-
- /* Allocate the list of zones bitmap objects */
- zone_bm = create_zone_bm_list(nr, &ca);
- bm->zone_bm_list = zone_bm;
- if (!zone_bm) {
- chain_free(&ca, PG_UNSAFE_CLEAR);
- return -ENOMEM;
- }
-
- /* Initialize the zone bitmap objects */
- for_each_zone(zone) {
- unsigned long pfn;
+ error = create_mem_extents(&mem_extents, gfp_mask);
+ if (error)
+ return error;
- if (!populated_zone(zone))
- continue;
+ list_for_each_entry(ext, &mem_extents, hook) {
+ struct bm_block *bb;
+ unsigned long pfn = ext->start;
+ unsigned long pages = ext->end - ext->start;
- zone_bm->start_pfn = zone->zone_start_pfn;
- zone_bm->end_pfn = zone->zone_start_pfn + zone->spanned_pages;
- /* Allocate the list of bitmap block objects */
- nr = DIV_ROUND_UP(zone->spanned_pages, BM_BITS_PER_BLOCK);
- bb = create_bm_block_list(nr, &ca);
- zone_bm->bm_blocks = bb;
- zone_bm->cur_block = bb;
- if (!bb)
- goto Free;
+ bb = list_entry(bm->blocks.prev, struct bm_block, hook);
- nr = zone->spanned_pages;
- pfn = zone->zone_start_pfn;
- /* Initialize the bitmap block objects */
- while (bb) {
- unsigned long *ptr;
+ error = create_bm_block_list(pages, bm->blocks.prev, &ca);
+ if (error)
+ goto Error;
- ptr = get_image_page(gfp_mask, safe_needed);
- bb->data = ptr;
- if (!ptr)
- goto Free;
+ list_for_each_entry_continue(bb, &bm->blocks, hook) {
+ bb->data = get_image_page(gfp_mask, safe_needed);
+ if (!bb->data) {
+ error = -ENOMEM;
+ goto Error;
+ }
bb->start_pfn = pfn;
- if (nr >= BM_BITS_PER_BLOCK) {
+ if (pages >= BM_BITS_PER_BLOCK) {
pfn += BM_BITS_PER_BLOCK;
- nr -= BM_BITS_PER_BLOCK;
+ pages -= BM_BITS_PER_BLOCK;
} else {
/* This is executed only once in the loop */
- pfn += nr;
+ pfn += pages;
}
bb->end_pfn = pfn;
- bb = bb->next;
}
- zone_bm = zone_bm->next;
}
+
bm->p_list = ca.chain;
memory_bm_position_reset(bm);
- return 0;
+ Exit:
+ free_mem_extents(&mem_extents);
+ return error;
- Free:
+ Error:
bm->p_list = ca.chain;
memory_bm_free(bm, PG_UNSAFE_CLEAR);
- return -ENOMEM;
+ goto Exit;
}
/**
* memory_bm_free - free memory occupied by the memory bitmap @bm
*/
-
static void memory_bm_free(struct memory_bitmap *bm, int clear_nosave_free)
{
- struct zone_bitmap *zone_bm;
+ struct bm_block *bb;
- /* Free the list of bit blocks for each zone_bitmap object */
- zone_bm = bm->zone_bm_list;
- while (zone_bm) {
- struct bm_block *bb;
+ list_for_each_entry(bb, &bm->blocks, hook)
+ if (bb->data)
+ free_image_page(bb->data, clear_nosave_free);
- bb = zone_bm->bm_blocks;
- while (bb) {
- if (bb->data)
- free_image_page(bb->data, clear_nosave_free);
- bb = bb->next;
- }
- zone_bm = zone_bm->next;
- }
free_list_of_pages(bm->p_list, clear_nosave_free);
- bm->zone_bm_list = NULL;
+
+ INIT_LIST_HEAD(&bm->blocks);
}
/**
* to given pfn. The cur_zone_bm member of @bm and the cur_block member
* of @bm->cur_zone_bm are updated.
*/
-
static int memory_bm_find_bit(struct memory_bitmap *bm, unsigned long pfn,
void **addr, unsigned int *bit_nr)
{
- struct zone_bitmap *zone_bm;
struct bm_block *bb;
- /* Check if the pfn is from the current zone */
- zone_bm = bm->cur.zone_bm;
- if (pfn < zone_bm->start_pfn || pfn >= zone_bm->end_pfn) {
- zone_bm = bm->zone_bm_list;
- /* We don't assume that the zones are sorted by pfns */
- while (pfn < zone_bm->start_pfn || pfn >= zone_bm->end_pfn) {
- zone_bm = zone_bm->next;
-
- if (!zone_bm)
- return -EFAULT;
- }
- bm->cur.zone_bm = zone_bm;
- }
- /* Check if the pfn corresponds to the current bitmap block */
- bb = zone_bm->cur_block;
+ /*
+ * Check if the pfn corresponds to the current bitmap block and find
+ * the block where it fits if this is not the case.
+ */
+ bb = bm->cur.block;
if (pfn < bb->start_pfn)
- bb = zone_bm->bm_blocks;
+ list_for_each_entry_continue_reverse(bb, &bm->blocks, hook)
+ if (pfn >= bb->start_pfn)
+ break;
- while (pfn >= bb->end_pfn) {
- bb = bb->next;
+ if (pfn >= bb->end_pfn)
+ list_for_each_entry_continue(bb, &bm->blocks, hook)
+ if (pfn >= bb->start_pfn && pfn < bb->end_pfn)
+ break;
- BUG_ON(!bb);
- }
- zone_bm->cur_block = bb;
+ if (&bb->hook == &bm->blocks)
+ return -EFAULT;
+
+ /* The block has been found */
+ bm->cur.block = bb;
pfn -= bb->start_pfn;
+ bm->cur.bit = pfn + 1;
*bit_nr = pfn;
*addr = bb->data;
return 0;
return test_bit(bit, addr);
}
+static bool memory_bm_pfn_present(struct memory_bitmap *bm, unsigned long pfn)
+{
+ void *addr;
+ unsigned int bit;
+
+ return !memory_bm_find_bit(bm, pfn, &addr, &bit);
+}
+
/**
* memory_bm_next_pfn - find the pfn that corresponds to the next set bit
* in the bitmap @bm. If the pfn cannot be found, BM_END_OF_MAP is
static unsigned long memory_bm_next_pfn(struct memory_bitmap *bm)
{
- struct zone_bitmap *zone_bm;
struct bm_block *bb;
int bit;
+ bb = bm->cur.block;
do {
- bb = bm->cur.block;
- do {
- bit = bm->cur.bit;
- bit = find_next_bit(bb->data, bm_block_bits(bb), bit);
- if (bit < bm_block_bits(bb))
- goto Return_pfn;
-
- bb = bb->next;
- bm->cur.block = bb;
- bm->cur.bit = 0;
- } while (bb);
- zone_bm = bm->cur.zone_bm->next;
- if (zone_bm) {
- bm->cur.zone_bm = zone_bm;
- bm->cur.block = zone_bm->bm_blocks;
- bm->cur.bit = 0;
- }
- } while (zone_bm);
+ bit = bm->cur.bit;
+ bit = find_next_bit(bb->data, bm_block_bits(bb), bit);
+ if (bit < bm_block_bits(bb))
+ goto Return_pfn;
+
+ bb = list_entry(bb->hook.next, struct bm_block, hook);
+ bm->cur.block = bb;
+ bm->cur.bit = 0;
+ } while (&bb->hook != &bm->blocks);
+
memory_bm_position_reset(bm);
return BM_END_OF_MAP;
* We should save the page if it isn't Nosave or NosaveFree, or Reserved,
* and it isn't a part of a free chunk of pages.
*/
-
-static struct page *saveable_highmem_page(unsigned long pfn)
+static struct page *saveable_highmem_page(struct zone *zone, unsigned long pfn)
{
struct page *page;
return NULL;
page = pfn_to_page(pfn);
+ if (page_zone(page) != zone)
+ return NULL;
BUG_ON(!PageHighMem(page));
mark_free_pages(zone);
max_zone_pfn = zone->zone_start_pfn + zone->spanned_pages;
for (pfn = zone->zone_start_pfn; pfn < max_zone_pfn; pfn++)
- if (saveable_highmem_page(pfn))
+ if (saveable_highmem_page(zone, pfn))
n++;
}
return n;
}
#else
-static inline void *saveable_highmem_page(unsigned long pfn) { return NULL; }
+static inline void *saveable_highmem_page(struct zone *z, unsigned long p)
+{
+ return NULL;
+}
#endif /* CONFIG_HIGHMEM */
/**
* of pages statically defined as 'unsaveable', and it isn't a part of
* a free chunk of pages.
*/
-
-static struct page *saveable_page(unsigned long pfn)
+static struct page *saveable_page(struct zone *zone, unsigned long pfn)
{
struct page *page;
return NULL;
page = pfn_to_page(pfn);
+ if (page_zone(page) != zone)
+ return NULL;
BUG_ON(PageHighMem(page));
mark_free_pages(zone);
max_zone_pfn = zone->zone_start_pfn + zone->spanned_pages;
for (pfn = zone->zone_start_pfn; pfn < max_zone_pfn; pfn++)
- if(saveable_page(pfn))
+ if (saveable_page(zone, pfn))
n++;
}
return n;
page_is_saveable(struct zone *zone, unsigned long pfn)
{
return is_highmem(zone) ?
- saveable_highmem_page(pfn) : saveable_page(pfn);
+ saveable_highmem_page(zone, pfn) : saveable_page(zone, pfn);
}
static void copy_data_page(unsigned long dst_pfn, unsigned long src_pfn)
* data modified by kmap_atomic()
*/
safe_copy_page(buffer, s_page);
- dst = kmap_atomic(pfn_to_page(dst_pfn), KM_USER0);
+ dst = kmap_atomic(d_page, KM_USER0);
memcpy(dst, buffer, PAGE_SIZE);
kunmap_atomic(dst, KM_USER0);
} else {
}
}
#else
-#define page_is_saveable(zone, pfn) saveable_page(pfn)
+#define page_is_saveable(zone, pfn) saveable_page(zone, pfn)
static inline void copy_data_page(unsigned long dst_pfn, unsigned long src_pfn)
{
* unpack_orig_pfns - for each element of @buf[] (1 page at a time) set
* the corresponding bit in the memory bitmap @bm
*/
-
-static inline void
-unpack_orig_pfns(unsigned long *buf, struct memory_bitmap *bm)
+static int unpack_orig_pfns(unsigned long *buf, struct memory_bitmap *bm)
{
int j;
if (unlikely(buf[j] == BM_END_OF_MAP))
break;
- memory_bm_set_bit(bm, buf[j]);
+ if (memory_bm_pfn_present(bm, buf[j]))
+ memory_bm_set_bit(bm, buf[j]);
+ else
+ return -EFAULT;
}
+
+ return 0;
}
/* List of "safe" pages that may be used to store data loaded from the suspend
pbe = chain_alloc(ca, sizeof(struct highmem_pbe));
if (!pbe) {
swsusp_free();
- return NULL;
+ return ERR_PTR(-ENOMEM);
}
pbe->orig_page = page;
if (safe_highmem_pages > 0) {
static inline void *
get_highmem_page_buffer(struct page *page, struct chain_allocator *ca)
{
- return NULL;
+ return ERR_PTR(-EINVAL);
}
static inline void copy_last_highmem_page(void) {}
static void *get_buffer(struct memory_bitmap *bm, struct chain_allocator *ca)
{
struct pbe *pbe;
- struct page *page = pfn_to_page(memory_bm_next_pfn(bm));
+ struct page *page;
+ unsigned long pfn = memory_bm_next_pfn(bm);
+ if (pfn == BM_END_OF_MAP)
+ return ERR_PTR(-EFAULT);
+
+ page = pfn_to_page(pfn);
if (PageHighMem(page))
return get_highmem_page_buffer(page, ca);
pbe = chain_alloc(ca, sizeof(struct pbe));
if (!pbe) {
swsusp_free();
- return NULL;
+ return ERR_PTR(-ENOMEM);
}
pbe->orig_address = page_address(page);
pbe->address = safe_pages_list;
return error;
} else if (handle->prev <= nr_meta_pages) {
- unpack_orig_pfns(buffer, ©_bm);
+ error = unpack_orig_pfns(buffer, ©_bm);
+ if (error)
+ return error;
+
if (handle->prev == nr_meta_pages) {
error = prepare_image(&orig_bm, ©_bm);
if (error)
restore_pblist = NULL;
handle->buffer = get_buffer(&orig_bm, &ca);
handle->sync_read = 0;
- if (!handle->buffer)
- return -ENOMEM;
+ if (IS_ERR(handle->buffer))
+ return PTR_ERR(handle->buffer);
}
} else {
copy_last_highmem_page();
handle->buffer = get_buffer(&orig_bm, &ca);
+ if (IS_ERR(handle->buffer))
+ return PTR_ERR(handle->buffer);
if (handle->buffer != buffer)
handle->sync_read = 0;
}
return 0;
}
+
+/*
+ * Platforms, like ACPI, may want us to save some memory used by them during
+ * hibernation and to restore the contents of this memory during the subsequent
+ * resume. The code below implements a mechanism allowing us to do that.
+ */
+
+struct nvs_page {
+ unsigned long phys_start;
+ unsigned int size;
+ void *kaddr;
+ void *data;
+ struct list_head node;
+};
+
+static LIST_HEAD(nvs_list);
+
+/**
+ * hibernate_nvs_register - register platform NVS memory region to save
+ * @start - physical address of the region
+ * @size - size of the region
+ *
+ * The NVS region need not be page-aligned (both ends) and we arrange
+ * things so that the data from page-aligned addresses in this region will
+ * be copied into separate RAM pages.
+ */
+int hibernate_nvs_register(unsigned long start, unsigned long size)
+{
+ struct nvs_page *entry, *next;
+
+ while (size > 0) {
+ unsigned int nr_bytes;
+
+ entry = kzalloc(sizeof(struct nvs_page), GFP_KERNEL);
+ if (!entry)
+ goto Error;
+
+ list_add_tail(&entry->node, &nvs_list);
+ entry->phys_start = start;
+ nr_bytes = PAGE_SIZE - (start & ~PAGE_MASK);
+ entry->size = (size < nr_bytes) ? size : nr_bytes;
+
+ start += entry->size;
+ size -= entry->size;
+ }
+ return 0;
+
+ Error:
+ list_for_each_entry_safe(entry, next, &nvs_list, node) {
+ list_del(&entry->node);
+ kfree(entry);
+ }
+ return -ENOMEM;
+}
+
+/**
+ * hibernate_nvs_free - free data pages allocated for saving NVS regions
+ */
+void hibernate_nvs_free(void)
+{
+ struct nvs_page *entry;
+
+ list_for_each_entry(entry, &nvs_list, node)
+ if (entry->data) {
+ free_page((unsigned long)entry->data);
+ entry->data = NULL;
+ if (entry->kaddr) {
+ iounmap(entry->kaddr);
+ entry->kaddr = NULL;
+ }
+ }
+}
+
+/**
+ * hibernate_nvs_alloc - allocate memory necessary for saving NVS regions
+ */
+int hibernate_nvs_alloc(void)
+{
+ struct nvs_page *entry;
+
+ list_for_each_entry(entry, &nvs_list, node) {
+ entry->data = (void *)__get_free_page(GFP_KERNEL);
+ if (!entry->data) {
+ hibernate_nvs_free();
+ return -ENOMEM;
+ }
+ }
+ return 0;
+}
+
+/**
+ * hibernate_nvs_save - save NVS memory regions
+ */
+void hibernate_nvs_save(void)
+{
+ struct nvs_page *entry;
+
+ printk(KERN_INFO "PM: Saving platform NVS memory\n");
+
+ list_for_each_entry(entry, &nvs_list, node)
+ if (entry->data) {
+ entry->kaddr = ioremap(entry->phys_start, entry->size);
+ memcpy(entry->data, entry->kaddr, entry->size);
+ }
+}
+
+/**
+ * hibernate_nvs_restore - restore NVS memory regions
+ *
+ * This function is going to be called with interrupts disabled, so it
+ * cannot iounmap the virtual addresses used to access the NVS region.
+ */
+void hibernate_nvs_restore(void)
+{
+ struct nvs_page *entry;
+
+ printk(KERN_INFO "PM: Restoring platform NVS memory\n");
+
+ list_for_each_entry(entry, &nvs_list, node)
+ if (entry->data)
+ memcpy(entry->kaddr, entry->data, entry->size);
+}
*/
unsigned ring_buffer_event_length(struct ring_buffer_event *event)
{
- return rb_event_length(event);
+ unsigned length = rb_event_length(event);
+ if (event->type != RINGBUF_TYPE_DATA)
+ return length;
+ length -= RB_EVNT_HDR_SIZE;
+ if (length > RB_MAX_SMALL_DATA + sizeof(event->array[0]))
+ length -= sizeof(event->array[0]);
+ return length;
}
EXPORT_SYMBOL_GPL(ring_buffer_event_length);
static struct list_head ptype_base[PTYPE_HASH_SIZE] __read_mostly;
static struct list_head ptype_all __read_mostly; /* Taps */
-#ifdef CONFIG_NET_DMA
-struct net_dma {
- struct dma_client client;
- spinlock_t lock;
- cpumask_t channel_mask;
- struct dma_chan **channels;
-};
-
-static enum dma_state_client
-netdev_dma_event(struct dma_client *client, struct dma_chan *chan,
- enum dma_state state);
-
-static struct net_dma net_dma = {
- .client = {
- .event_callback = netdev_dma_event,
- },
-};
-#endif
-
/*
* The @dev_base_head list is protected by @dev_base_lock and the rtnl
* semaphore.
* There may not be any more sk_buffs coming right now, so push
* any pending DMA copies to hardware
*/
- if (!cpus_empty(net_dma.channel_mask)) {
- int chan_idx;
- for_each_cpu_mask_nr(chan_idx, net_dma.channel_mask) {
- struct dma_chan *chan = net_dma.channels[chan_idx];
- if (chan)
- dma_async_memcpy_issue_pending(chan);
- }
- }
+ dma_issue_pending_all();
#endif
return;
return NOTIFY_OK;
}
-#ifdef CONFIG_NET_DMA
-/**
- * net_dma_rebalance - try to maintain one DMA channel per CPU
- * @net_dma: DMA client and associated data (lock, channels, channel_mask)
- *
- * This is called when the number of channels allocated to the net_dma client
- * changes. The net_dma client tries to have one DMA channel per CPU.
- */
-
-static void net_dma_rebalance(struct net_dma *net_dma)
-{
- unsigned int cpu, i, n, chan_idx;
- struct dma_chan *chan;
-
- if (cpus_empty(net_dma->channel_mask)) {
- for_each_online_cpu(cpu)
- rcu_assign_pointer(per_cpu(softnet_data, cpu).net_dma, NULL);
- return;
- }
-
- i = 0;
- cpu = first_cpu(cpu_online_map);
-
- for_each_cpu_mask_nr(chan_idx, net_dma->channel_mask) {
- chan = net_dma->channels[chan_idx];
-
- n = ((num_online_cpus() / cpus_weight(net_dma->channel_mask))
- + (i < (num_online_cpus() %
- cpus_weight(net_dma->channel_mask)) ? 1 : 0));
-
- while(n) {
- per_cpu(softnet_data, cpu).net_dma = chan;
- cpu = next_cpu(cpu, cpu_online_map);
- n--;
- }
- i++;
- }
-}
-
-/**
- * netdev_dma_event - event callback for the net_dma_client
- * @client: should always be net_dma_client
- * @chan: DMA channel for the event
- * @state: DMA state to be handled
- */
-static enum dma_state_client
-netdev_dma_event(struct dma_client *client, struct dma_chan *chan,
- enum dma_state state)
-{
- int i, found = 0, pos = -1;
- struct net_dma *net_dma =
- container_of(client, struct net_dma, client);
- enum dma_state_client ack = DMA_DUP; /* default: take no action */
-
- spin_lock(&net_dma->lock);
- switch (state) {
- case DMA_RESOURCE_AVAILABLE:
- for (i = 0; i < nr_cpu_ids; i++)
- if (net_dma->channels[i] == chan) {
- found = 1;
- break;
- } else if (net_dma->channels[i] == NULL && pos < 0)
- pos = i;
-
- if (!found && pos >= 0) {
- ack = DMA_ACK;
- net_dma->channels[pos] = chan;
- cpu_set(pos, net_dma->channel_mask);
- net_dma_rebalance(net_dma);
- }
- break;
- case DMA_RESOURCE_REMOVED:
- for (i = 0; i < nr_cpu_ids; i++)
- if (net_dma->channels[i] == chan) {
- found = 1;
- pos = i;
- break;
- }
-
- if (found) {
- ack = DMA_ACK;
- cpu_clear(pos, net_dma->channel_mask);
- net_dma->channels[i] = NULL;
- net_dma_rebalance(net_dma);
- }
- break;
- default:
- break;
- }
- spin_unlock(&net_dma->lock);
-
- return ack;
-}
-
-/**
- * netdev_dma_register - register the networking subsystem as a DMA client
- */
-static int __init netdev_dma_register(void)
-{
- net_dma.channels = kzalloc(nr_cpu_ids * sizeof(struct net_dma),
- GFP_KERNEL);
- if (unlikely(!net_dma.channels)) {
- printk(KERN_NOTICE
- "netdev_dma: no memory for net_dma.channels\n");
- return -ENOMEM;
- }
- spin_lock_init(&net_dma.lock);
- dma_cap_set(DMA_MEMCPY, net_dma.client.cap_mask);
- dma_async_client_register(&net_dma.client);
- dma_async_client_chan_request(&net_dma.client);
- return 0;
-}
-
-#else
-static int __init netdev_dma_register(void) { return -ENODEV; }
-#endif /* CONFIG_NET_DMA */
/**
* netdev_increment_features - increment feature set by one
if (register_pernet_device(&default_device_ops))
goto out;
- netdev_dma_register();
-
open_softirq(NET_TX_SOFTIRQ, net_tx_action);
open_softirq(NET_RX_SOFTIRQ, net_rx_action);
hotcpu_notifier(dev_cpu_callback, 0);
dst_init();
dev_mcast_init();
+ #ifdef CONFIG_NET_DMA
+ dmaengine_get();
+ #endif
rc = 0;
out:
return rc;
if ((available < target) &&
(len > sysctl_tcp_dma_copybreak) && !(flags & MSG_PEEK) &&
!sysctl_tcp_low_latency &&
- __get_cpu_var(softnet_data).net_dma) {
+ dma_find_channel(DMA_MEMCPY)) {
preempt_enable_no_resched();
tp->ucopy.pinned_list =
dma_pin_iovec_pages(msg->msg_iov, len);
if (!(flags & MSG_TRUNC)) {
#ifdef CONFIG_NET_DMA
if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list)
- tp->ucopy.dma_chan = get_softnet_dma();
+ tp->ucopy.dma_chan = dma_find_channel(DMA_MEMCPY);
if (tp->ucopy.dma_chan) {
tp->ucopy.dma_cookie = dma_skb_copy_datagram_iovec(
/* Safe to free early-copied skbs now */
__skb_queue_purge(&sk->sk_async_wait_queue);
- dma_chan_put(tp->ucopy.dma_chan);
tp->ucopy.dma_chan = NULL;
}
if (tp->ucopy.pinned_list) {
return 0;
if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list)
- tp->ucopy.dma_chan = get_softnet_dma();
+ tp->ucopy.dma_chan = dma_find_channel(DMA_MEMCPY);
if (tp->ucopy.dma_chan && skb_csum_unnecessary(skb)) {
#ifdef CONFIG_NET_DMA
struct tcp_sock *tp = tcp_sk(sk);
if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list)
- tp->ucopy.dma_chan = get_softnet_dma();
+ tp->ucopy.dma_chan = dma_find_channel(DMA_MEMCPY);
if (tp->ucopy.dma_chan)
ret = tcp_v4_do_rcv(sk, skb);
else
#ifdef CONFIG_NET_DMA
struct tcp_sock *tp = tcp_sk(sk);
if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list)
- tp->ucopy.dma_chan = get_softnet_dma();
+ tp->ucopy.dma_chan = dma_find_channel(DMA_MEMCPY);
if (tp->ucopy.dma_chan)
ret = tcp_v6_do_rcv(sk, skb);
else
projects / linux-2.6-omap-h63xx.git / commitdiff