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Merge branches 'machtypes', 'core', 'ep93xx', 'ks8695', 'netdev' and 'sa1100' into devel

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This commit is contained in:
Russell King 2008-10-09 21:31:54 +01:00 committed by Russell King
commit 90bb28b064
425 changed files with 3039 additions and 2279 deletions
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69
arch/arm/Kconfig
View file

@ -148,7 +148,6 @@ config ARCH_MAY_HAVE_PC_FDC
config ZONE_DMA
bool
default y
config GENERIC_ISA_DMA
bool
@ -178,6 +177,11 @@ config OPROFILE_MPCORE
config OPROFILE_ARM11_CORE
bool
config OPROFILE_ARMV7
def_bool y
depends on CPU_V7 && !SMP
bool
endif
config VECTORS_BASE
@ -245,6 +249,7 @@ config ARCH_CLPS7500
select TIMER_ACORN
select ISA
select NO_IOPORT
select ARCH_SPARSEMEM_ENABLE
help
Support for the Cirrus Logic PS7500FE system-on-a-chip.
@ -306,6 +311,7 @@ config ARCH_IOP13XX
select PLAT_IOP
select PCI
select ARCH_SUPPORTS_MSI
select VMSPLIT_1G
help
Support for Intel's IOP13XX (XScale) family of processors.
@ -350,6 +356,7 @@ config ARCH_IXP4XX
select GENERIC_GPIO
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select ZONE_DMA if PCI
help
Support for Intel's IXP4XX (XScale) family of processors.
@ -464,6 +471,7 @@ config ARCH_RPC
select HAVE_PATA_PLATFORM
select ISA_DMA_API
select NO_IOPORT
select ARCH_SPARSEMEM_ENABLE
help
On the Acorn Risc-PC, Linux can support the internal IDE disk and
CD-ROM interface, serial and parallel port, and the floppy drive.
@ -471,9 +479,7 @@ config ARCH_RPC
config ARCH_SA1100
bool "SA1100-based"
select ISA
select ARCH_DISCONTIGMEM_ENABLE
select ARCH_SPARSEMEM_ENABLE
select ARCH_SELECT_MEMORY_MODEL
select ARCH_MTD_XIP
select GENERIC_GPIO
select GENERIC_TIME
@ -497,6 +503,7 @@ config ARCH_SHARK
bool "Shark"
select ISA
select ISA_DMA
select ZONE_DMA
select PCI
help
Support for the StrongARM based Digital DNARD machine, also known
@ -504,6 +511,8 @@ config ARCH_SHARK
config ARCH_LH7A40X
bool "Sharp LH7A40X"
select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
help
Say Y here for systems based on one of the Sharp LH7A40X
System on a Chip processors. These CPUs include an ARM922T
@ -516,6 +525,7 @@ config ARCH_DAVINCI
select GENERIC_CLOCKEVENTS
select GENERIC_GPIO
select HAVE_CLK
select ZONE_DMA
help
Support for TI's DaVinci platform.
@ -734,6 +744,29 @@ config SMP
If you don't know what to do here, say N.
choice
prompt "Memory split"
default VMSPLIT_3G
help
Select the desired split between kernel and user memory.
If you are not absolutely sure what you are doing, leave this
option alone!
config VMSPLIT_3G
bool "3G/1G user/kernel split"
config VMSPLIT_2G
bool "2G/2G user/kernel split"
config VMSPLIT_1G
bool "1G/3G user/kernel split"
endchoice
config PAGE_OFFSET
hex
default 0x40000000 if VMSPLIT_1G
default 0x80000000 if VMSPLIT_2G
default 0xC0000000
config NR_CPUS
int "Maximum number of CPUs (2-32)"
range 2 32
@ -810,20 +843,18 @@ config OABI_COMPAT
UNPREDICTABLE (in fact it can be predicted that it won't work
at all). If in doubt say Y.
# Discontigmem is deprecated
config ARCH_DISCONTIGMEM_ENABLE
bool
default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
help
Say Y to support efficient handling of discontiguous physical memory,
for architectures which are either NUMA (Non-Uniform Memory Access)
or have huge holes in the physical address space for other reasons.
See <file:Documentation/vm/numa> for more.
config ARCH_SPARSEMEM_ENABLE
bool
config ARCH_SPARSEMEM_DEFAULT
def_bool ARCH_SPARSEMEM_ENABLE
config ARCH_SELECT_MEMORY_MODEL
bool
def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
config NODES_SHIFT
int
@ -1000,9 +1031,9 @@ config ATAGS_PROC
endmenu
if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
menu "CPU Power Management"
menu "CPU Frequency scaling"
if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
source "drivers/cpufreq/Kconfig"
@ -1042,10 +1073,12 @@ config CPU_FREQ_PXA
default y
select CPU_FREQ_DEFAULT_GOV_USERSPACE
endmenu
endif
source "drivers/cpuidle/Kconfig"
endmenu
menu "Floating point emulation"
comment "At least one emulation must be selected"
@ -1197,6 +1230,8 @@ source "drivers/power/Kconfig"
source "drivers/hwmon/Kconfig"
source "drivers/thermal/Kconfig"
source "drivers/watchdog/Kconfig"
source "drivers/ssb/Kconfig"
@ -1217,6 +1252,10 @@ source "drivers/usb/Kconfig"
source "drivers/mmc/Kconfig"
source "drivers/memstick/Kconfig"
source "drivers/accessibility/Kconfig"
source "drivers/leds/Kconfig"
source "drivers/rtc/Kconfig"
@ -1225,6 +1264,8 @@ source "drivers/dma/Kconfig"
source "drivers/dca/Kconfig"
source "drivers/auxdisplay/Kconfig"
source "drivers/regulator/Kconfig"
source "drivers/uio/Kconfig"

2
arch/arm/Makefile
View file

@ -47,7 +47,7 @@ comma = ,
# Note that GCC does not numerically define an architecture version
# macro, but instead defines a whole series of macros which makes
# testing for a specific architecture or later rather impossible.
arch-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7a,-march=armv5t -Wa$(comma)-march=armv7a)
arch-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
# Only override the compiler option if ARMv6. The ARMv6K extensions are
# always available in ARMv7

2
arch/arm/boot/compressed/Makefile
View file

@ -76,7 +76,7 @@ KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
endif
EXTRA_CFLAGS := -fpic -fno-builtin
EXTRA_AFLAGS :=
EXTRA_AFLAGS := -Wa,-march=all
# Supply ZRELADDR, INITRD_PHYS and PARAMS_PHYS to the decompressor via
# linker symbols. We only define initrd_phys and params_phys if the

3
arch/arm/boot/compressed/head.S
View file

@ -421,6 +421,7 @@ __setup_mmu: sub r3, r4, #16384 @ Page directory size
add r1, r1, #1048576
str r1, [r0]
mov pc, lr
ENDPROC(__setup_mmu)
__armv4_mmu_cache_on:
mov r12, lr
@ -801,7 +802,7 @@ loop1:
add r2, r2, #4 @ add 4 (line length offset)
ldr r4, =0x3ff
ands r4, r4, r1, lsr #3 @ find maximum number on the way size
.word 0xe16f5f14 @ clz r5, r4 - find bit position of way size increment
clz r5, r4 @ find bit position of way size increment
ldr r7, =0x7fff
ands r7, r7, r1, lsr #13 @ extract max number of the index size
loop2:

3
arch/arm/common/Kconfig
View file

@ -12,7 +12,8 @@ config ICST307
config SA1111
bool
select DMABOUNCE
select DMABOUNCE if !ARCH_PXA
select ZONE_DMA if !ARCH_PXA
config DMABOUNCE
bool

297
arch/arm/common/dmabounce.c
View file

@ -154,9 +154,7 @@ alloc_safe_buffer(struct dmabounce_device_info *device_info, void *ptr,
#endif
write_lock_irqsave(&device_info->lock, flags);
list_add(&buf->node, &device_info->safe_buffers);
write_unlock_irqrestore(&device_info->lock, flags);
return buf;
@ -205,8 +203,22 @@ free_safe_buffer(struct dmabounce_device_info *device_info, struct safe_buffer *
/* ************************************************** */
static inline dma_addr_t
map_single(struct device *dev, void *ptr, size_t size,
static struct safe_buffer *find_safe_buffer_dev(struct device *dev,
dma_addr_t dma_addr, const char *where)
{
if (!dev || !dev->archdata.dmabounce)
return NULL;
if (dma_mapping_error(dev, dma_addr)) {
if (dev)
dev_err(dev, "Trying to %s invalid mapping\n", where);
else
pr_err("unknown device: Trying to %s invalid mapping\n", where);
return NULL;
}
return find_safe_buffer(dev->archdata.dmabounce, dma_addr);
}
static inline dma_addr_t map_single(struct device *dev, void *ptr, size_t size,
enum dma_data_direction dir)
{
struct dmabounce_device_info *device_info = dev->archdata.dmabounce;
@ -270,33 +282,21 @@ map_single(struct device *dev, void *ptr, size_t size,
return dma_addr;
}
static inline void
unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
enum dma_data_direction dir)
static inline void unmap_single(struct device *dev, dma_addr_t dma_addr,
size_t size, enum dma_data_direction dir)
{
struct dmabounce_device_info *device_info = dev->archdata.dmabounce;
struct safe_buffer *buf = NULL;
/*
* Trying to unmap an invalid mapping
*/
if (dma_mapping_error(dev, dma_addr)) {
dev_err(dev, "Trying to unmap invalid mapping\n");
return;
}
if (device_info)
buf = find_safe_buffer(device_info, dma_addr);
struct safe_buffer *buf = find_safe_buffer_dev(dev, dma_addr, "unmap");
if (buf) {
BUG_ON(buf->size != size);
BUG_ON(buf->direction != dir);
dev_dbg(dev,
"%s: unsafe buffer %p (dma=%#x) mapped to %p (dma=%#x)\n",
__func__, buf->ptr, virt_to_dma(dev, buf->ptr),
buf->safe, buf->safe_dma_addr);
DO_STATS ( device_info->bounce_count++ );
DO_STATS(dev->archdata.dmabounce->bounce_count++);
if (dir == DMA_FROM_DEVICE || dir == DMA_BIDIRECTIONAL) {
void *ptr = buf->ptr;
@ -317,74 +317,7 @@ unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
dmac_clean_range(ptr, ptr + size);
outer_clean_range(__pa(ptr), __pa(ptr) + size);
}
free_safe_buffer(device_info, buf);
}
}
static int sync_single(struct device *dev, dma_addr_t dma_addr, size_t size,
enum dma_data_direction dir)
{
struct dmabounce_device_info *device_info = dev->archdata.dmabounce;
struct safe_buffer *buf = NULL;
if (device_info)
buf = find_safe_buffer(device_info, dma_addr);
if (buf) {
/*
* Both of these checks from original code need to be
* commented out b/c some drivers rely on the following:
*
* 1) Drivers may map a large chunk of memory into DMA space
* but only sync a small portion of it. Good example is
* allocating a large buffer, mapping it, and then
* breaking it up into small descriptors. No point
* in syncing the whole buffer if you only have to
* touch one descriptor.
*
* 2) Buffers that are mapped as DMA_BIDIRECTIONAL are
* usually only synced in one dir at a time.
*
* See drivers/net/eepro100.c for examples of both cases.
*
* -ds
*
* BUG_ON(buf->size != size);
* BUG_ON(buf->direction != dir);
*/
dev_dbg(dev,
"%s: unsafe buffer %p (dma=%#x) mapped to %p (dma=%#x)\n",
__func__, buf->ptr, virt_to_dma(dev, buf->ptr),
buf->safe, buf->safe_dma_addr);
DO_STATS ( device_info->bounce_count++ );
switch (dir) {
case DMA_FROM_DEVICE:
dev_dbg(dev,
"%s: copy back safe %p to unsafe %p size %d\n",
__func__, buf->safe, buf->ptr, size);
memcpy(buf->ptr, buf->safe, size);
break;
case DMA_TO_DEVICE:
dev_dbg(dev,
"%s: copy out unsafe %p to safe %p, size %d\n",
__func__,buf->ptr, buf->safe, size);
memcpy(buf->safe, buf->ptr, size);
break;
case DMA_BIDIRECTIONAL:
BUG(); /* is this allowed? what does it mean? */
default:
BUG();
}
/*
* No need to sync the safe buffer - it was allocated
* via the coherent allocators.
*/
return 0;
} else {
return 1;
free_safe_buffer(dev->archdata.dmabounce, buf);
}
}
@ -396,21 +329,29 @@ static int sync_single(struct device *dev, dma_addr_t dma_addr, size_t size,
* substitute the safe buffer for the unsafe one.
* (basically move the buffer from an unsafe area to a safe one)
*/
dma_addr_t
dma_map_single(struct device *dev, void *ptr, size_t size,
dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size,
enum dma_data_direction dir)
{
dma_addr_t dma_addr;
dev_dbg(dev, "%s(ptr=%p,size=%d,dir=%x)\n",
__func__, ptr, size, dir);
BUG_ON(dir == DMA_NONE);
BUG_ON(!valid_dma_direction(dir));
dma_addr = map_single(dev, ptr, size, dir);
return dma_addr;
return map_single(dev, ptr, size, dir);
}
EXPORT_SYMBOL(dma_map_single);
dma_addr_t dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size, enum dma_data_direction dir)
{
dev_dbg(dev, "%s(page=%p,off=%#lx,size=%zx,dir=%x)\n",
__func__, page, offset, size, dir);
BUG_ON(!valid_dma_direction(dir));
return map_single(dev, page_address(page) + offset, size, dir);
}
EXPORT_SYMBOL(dma_map_page);
/*
* see if a mapped address was really a "safe" buffer and if so, copy
@ -419,126 +360,76 @@ dma_map_single(struct device *dev, void *ptr, size_t size,
* should be)
*/
void
dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
enum dma_data_direction dir)
void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
enum dma_data_direction dir)
{
dev_dbg(dev, "%s(ptr=%p,size=%d,dir=%x)\n",
__func__, (void *) dma_addr, size, dir);
BUG_ON(dir == DMA_NONE);
unmap_single(dev, dma_addr, size, dir);
}
EXPORT_SYMBOL(dma_unmap_single);
int
dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
enum dma_data_direction dir)
int dmabounce_sync_for_cpu(struct device *dev, dma_addr_t addr,
unsigned long off, size_t sz, enum dma_data_direction dir)
{
int i;
struct safe_buffer *buf;
dev_dbg(dev, "%s(sg=%p,nents=%d,dir=%x)\n",
__func__, sg, nents, dir);
dev_dbg(dev, "%s(dma=%#x,off=%#lx,sz=%zx,dir=%x)\n",
__func__, addr, off, sz, dir);
BUG_ON(dir == DMA_NONE);
buf = find_safe_buffer_dev(dev, addr, __func__);
if (!buf)
return 1;
for (i = 0; i < nents; i++, sg++) {
struct page *page = sg_page(sg);
unsigned int offset = sg->offset;
unsigned int length = sg->length;
void *ptr = page_address(page) + offset;
BUG_ON(buf->direction != dir);
sg->dma_address =
map_single(dev, ptr, length, dir);
dev_dbg(dev, "%s: unsafe buffer %p (dma=%#x) mapped to %p (dma=%#x)\n",
__func__, buf->ptr, virt_to_dma(dev, buf->ptr),
buf->safe, buf->safe_dma_addr);
DO_STATS(dev->archdata.dmabounce->bounce_count++);
if (dir == DMA_FROM_DEVICE || dir == DMA_BIDIRECTIONAL) {
dev_dbg(dev, "%s: copy back safe %p to unsafe %p size %d\n",
__func__, buf->safe + off, buf->ptr + off, sz);
memcpy(buf->ptr + off, buf->safe + off, sz);
}
return nents;
return 0;
}
EXPORT_SYMBOL(dmabounce_sync_for_cpu);
void
dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
enum dma_data_direction dir)
int dmabounce_sync_for_device(struct device *dev, dma_addr_t addr,
unsigned long off, size_t sz, enum dma_data_direction dir)
{
int i;
struct safe_buffer *buf;
dev_dbg(dev, "%s(sg=%p,nents=%d,dir=%x)\n",
__func__, sg, nents, dir);
dev_dbg(dev, "%s(dma=%#x,off=%#lx,sz=%zx,dir=%x)\n",
__func__, addr, off, sz, dir);
BUG_ON(dir == DMA_NONE);
buf = find_safe_buffer_dev(dev, addr, __func__);
if (!buf)
return 1;
for (i = 0; i < nents; i++, sg++) {
dma_addr_t dma_addr = sg->dma_address;
unsigned int length = sg->length;
BUG_ON(buf->direction != dir);
unmap_single(dev, dma_addr, length, dir);
dev_dbg(dev, "%s: unsafe buffer %p (dma=%#x) mapped to %p (dma=%#x)\n",
__func__, buf->ptr, virt_to_dma(dev, buf->ptr),
buf->safe, buf->safe_dma_addr);
DO_STATS(dev->archdata.dmabounce->bounce_count++);
if (dir == DMA_TO_DEVICE || dir == DMA_BIDIRECTIONAL) {
dev_dbg(dev, "%s: copy out unsafe %p to safe %p, size %d\n",
__func__,buf->ptr + off, buf->safe + off, sz);
memcpy(buf->safe + off, buf->ptr + off, sz);
}
return 0;
}
EXPORT_SYMBOL(dmabounce_sync_for_device);
void dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_addr,
unsigned long offset, size_t size,
enum dma_data_direction dir)
{
dev_dbg(dev, "%s(dma=%#x,off=%#lx,size=%zx,dir=%x)\n",
__func__, dma_addr, offset, size, dir);
if (sync_single(dev, dma_addr, offset + size, dir))
dma_cache_maint(dma_to_virt(dev, dma_addr) + offset, size, dir);
}
EXPORT_SYMBOL(dma_sync_single_range_for_cpu);
void dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_addr,
unsigned long offset, size_t size,
enum dma_data_direction dir)
{
dev_dbg(dev, "%s(dma=%#x,off=%#lx,size=%zx,dir=%x)\n",
__func__, dma_addr, offset, size, dir);
if (sync_single(dev, dma_addr, offset + size, dir))
dma_cache_maint(dma_to_virt(dev, dma_addr) + offset, size, dir);
}
EXPORT_SYMBOL(dma_sync_single_range_for_device);
void
dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents,
enum dma_data_direction dir)
{
int i;
dev_dbg(dev, "%s(sg=%p,nents=%d,dir=%x)\n",
__func__, sg, nents, dir);
BUG_ON(dir == DMA_NONE);
for (i = 0; i < nents; i++, sg++) {
dma_addr_t dma_addr = sg->dma_address;
unsigned int length = sg->length;
sync_single(dev, dma_addr, length, dir);
}
}
void
dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents,
enum dma_data_direction dir)
{
int i;
dev_dbg(dev, "%s(sg=%p,nents=%d,dir=%x)\n",
__func__, sg, nents, dir);
BUG_ON(dir == DMA_NONE);
for (i = 0; i < nents; i++, sg++) {
dma_addr_t dma_addr = sg->dma_address;
unsigned int length = sg->length;
sync_single(dev, dma_addr, length, dir);
}
}
static int
dmabounce_init_pool(struct dmabounce_pool *pool, struct device *dev, const char *name,
unsigned long size)
static int dmabounce_init_pool(struct dmabounce_pool *pool, struct device *dev,
const char *name, unsigned long size)
{
pool->size = size;
DO_STATS(pool->allocs = 0);
@ -549,9 +440,8 @@ dmabounce_init_pool(struct dmabounce_pool *pool, struct device *dev, const char
return pool->pool ? 0 : -ENOMEM;
}
int
dmabounce_register_dev(struct device *dev, unsigned long small_buffer_size,
unsigned long large_buffer_size)
int dmabounce_register_dev(struct device *dev, unsigned long small_buffer_size,
unsigned long large_buffer_size)
{
struct dmabounce_device_info *device_info;
int ret;
@ -607,9 +497,9 @@ dmabounce_register_dev(struct device *dev, unsigned long small_buffer_size,
kfree(device_info);
return ret;
}
EXPORT_SYMBOL(dmabounce_register_dev);
void
dmabounce_unregister_dev(struct device *dev)
void dmabounce_unregister_dev(struct device *dev)
{
struct dmabounce_device_info *device_info = dev->archdata.dmabounce;
@ -642,15 +532,6 @@ dmabounce_unregister_dev(struct device *dev)
dev_info(dev, "dmabounce: device unregistered\n");
}
EXPORT_SYMBOL(dma_map_single);
EXPORT_SYMBOL(dma_unmap_single);
EXPORT_SYMBOL(dma_map_sg);
EXPORT_SYMBOL(dma_unmap_sg);
EXPORT_SYMBOL(dma_sync_sg_for_cpu);
EXPORT_SYMBOL(dma_sync_sg_for_device);
EXPORT_SYMBOL(dmabounce_register_dev);
EXPORT_SYMBOL(dmabounce_unregister_dev);
MODULE_AUTHOR("Christopher Hoover <ch@hpl.hp.com>, Deepak Saxena <dsaxena@plexity.net>");

2
arch/arm/common/gic.c
View file

@ -27,9 +27,9 @@
#include <linux/list.h>
#include <linux/smp.h>
#include <linux/cpumask.h>
#include <linux/io.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/mach/irq.h>
#include <asm/hardware/gic.h>

2
arch/arm/common/locomo.c
View file

@ -24,9 +24,9 @@
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/mach/irq.h>

2
arch/arm/common/sa1111.c
View file

@ -25,10 +25,10 @@
#include <linux/spinlock.h>
#include <linux/dma-mapping.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/mach/irq.h>
#include <asm/sizes.h>

2
arch/arm/common/scoop.c
View file

@ -15,7 +15,7 @@
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <asm/io.h>
#include <linux/io.h>
#include <asm/gpio.h>
#include <asm/hardware/scoop.h>

2
arch/arm/common/time-acorn.c
View file

@ -17,9 +17,9 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/io.h>
#include <asm/hardware/ioc.h>
#include <asm/mach/time.h>

2
arch/arm/common/uengine.c
View file

@ -16,9 +16,9 @@
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/hardware/uengine.h>
#include <asm/io.h>
#if defined(CONFIG_ARCH_IXP2000)
#define IXP_UENGINE_CSR_VIRT_BASE IXP2000_UENGINE_CSR_VIRT_BASE

2
arch/arm/common/via82c505.c
View file

@ -4,8 +4,8 @@
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/io.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/mach/pci.h>

2
arch/arm/common/vic.c
View file

@ -20,8 +20,8 @@
*/
#include <linux/init.h>
#include <linux/list.h>
#include <linux/io.h>
#include <asm/io.h>
#include <asm/mach/irq.h>
#include <asm/hardware/vic.h>

1121
arch/arm/configs/jornada720_defconfig
View file

File diff suppressed because it is too large Load diff

2
arch/arm/include/asm/bug.h
View file

@ -12,7 +12,7 @@ extern void __bug(const char *file, int line) __attribute__((noreturn));
#else
/* this just causes an oops */
#define BUG() (*(int *)0 = 0)
#define BUG() do { *(int *)0 = 0; } while (1)
#endif

90
arch/arm/include/asm/cacheflush.h
View file

@ -444,94 +444,4 @@ static inline void flush_ioremap_region(unsigned long phys, void __iomem *virt,
dmac_inv_range(start, start + size);
}
#define __cacheid_present(val) (val != read_cpuid(CPUID_ID))
#define __cacheid_type_v7(val) ((val & (7 << 29)) == (4 << 29))
#define __cacheid_vivt_prev7(val) ((val & (15 << 25)) != (14 << 25))
#define __cacheid_vipt_prev7(val) ((val & (15 << 25)) == (14 << 25))
#define __cacheid_vipt_nonaliasing_prev7(val) ((val & (15 << 25 | 1 << 23)) == (14 << 25))
#define __cacheid_vipt_aliasing_prev7(val) ((val & (15 << 25 | 1 << 23)) == (14 << 25 | 1 << 23))
#define __cacheid_vivt(val) (__cacheid_type_v7(val) ? 0 : __cacheid_vivt_prev7(val))
#define __cacheid_vipt(val) (__cacheid_type_v7(val) ? 1 : __cacheid_vipt_prev7(val))
#define __cacheid_vipt_nonaliasing(val) (__cacheid_type_v7(val) ? 1 : __cacheid_vipt_nonaliasing_prev7(val))
#define __cacheid_vipt_aliasing(val) (__cacheid_type_v7(val) ? 0 : __cacheid_vipt_aliasing_prev7(val))
#define __cacheid_vivt_asid_tagged_instr(val) (__cacheid_type_v7(val) ? ((val & (3 << 14)) == (1 << 14)) : 0)
#if defined(CONFIG_CPU_CACHE_VIVT) && !defined(CONFIG_CPU_CACHE_VIPT)
/*
* VIVT caches only
*/
#define cache_is_vivt() 1
#define cache_is_vipt() 0
#define cache_is_vipt_nonaliasing() 0
#define cache_is_vipt_aliasing() 0
#define icache_is_vivt_asid_tagged() 0
#elif !defined(CONFIG_CPU_CACHE_VIVT) && defined(CONFIG_CPU_CACHE_VIPT)
/*
* VIPT caches only
*/
#define cache_is_vivt() 0
#define cache_is_vipt() 1
#define cache_is_vipt_nonaliasing() \
({ \
unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
__cacheid_vipt_nonaliasing(__val); \
})
#define cache_is_vipt_aliasing() \
({ \
unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
__cacheid_vipt_aliasing(__val); \
})
#define icache_is_vivt_asid_tagged() \
({ \
unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
__cacheid_vivt_asid_tagged_instr(__val); \
})
#else
/*
* VIVT or VIPT caches. Note that this is unreliable since ARM926
* and V6 CPUs satisfy the "(val & (15 << 25)) == (14 << 25)" test.
* There's no way to tell from the CacheType register what type (!)
* the cache is.
*/
#define cache_is_vivt() \
({ \
unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
(!__cacheid_present(__val)) || __cacheid_vivt(__val); \
})
#define cache_is_vipt() \
({ \
unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
__cacheid_present(__val) && __cacheid_vipt(__val); \
})
#define cache_is_vipt_nonaliasing() \
({ \
unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
__cacheid_present(__val) && \
__cacheid_vipt_nonaliasing(__val); \
})
#define cache_is_vipt_aliasing() \
({ \
unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
__cacheid_present(__val) && \
__cacheid_vipt_aliasing(__val); \
})
#define icache_is_vivt_asid_tagged() \
({ \
unsigned int __val = read_cpuid(CPUID_CACHETYPE); \
__cacheid_present(__val) && \
__cacheid_vivt_asid_tagged_instr(__val); \
})
#endif
#endif

52
arch/arm/include/asm/cachetype.h Normal file
View file

@ -0,0 +1,52 @@
#ifndef __ASM_ARM_CACHETYPE_H
#define __ASM_ARM_CACHETYPE_H
#define CACHEID_VIVT (1 << 0)
#define CACHEID_VIPT_NONALIASING (1 << 1)
#define CACHEID_VIPT_ALIASING (1 << 2)
#define CACHEID_VIPT (CACHEID_VIPT_ALIASING|CACHEID_VIPT_NONALIASING)
#define CACHEID_ASID_TAGGED (1 << 3)
extern unsigned int cacheid;
#define cache_is_vivt() cacheid_is(CACHEID_VIVT)
#define cache_is_vipt() cacheid_is(CACHEID_VIPT)
#define cache_is_vipt_nonaliasing() cacheid_is(CACHEID_VIPT_NONALIASING)
#define cache_is_vipt_aliasing() cacheid_is(CACHEID_VIPT_ALIASING)
#define icache_is_vivt_asid_tagged() cacheid_is(CACHEID_ASID_TAGGED)
/*
* __LINUX_ARM_ARCH__ is the minimum supported CPU architecture
* Mask out support which will never be present on newer CPUs.
* - v6+ is never VIVT
* - v7+ VIPT never aliases
*/
#if __LINUX_ARM_ARCH__ >= 7
#define __CACHEID_ARCH_MIN (CACHEID_VIPT_NONALIASING | CACHEID_ASID_TAGGED)
#elif __LINUX_ARM_ARCH__ >= 6
#define __CACHEID_ARCH_MIN (~CACHEID_VIVT)
#else
#define __CACHEID_ARCH_MIN (~0)
#endif
/*
* Mask out support which isn't configured
*/
#if defined(CONFIG_CPU_CACHE_VIVT) && !defined(CONFIG_CPU_CACHE_VIPT)
#define __CACHEID_ALWAYS (CACHEID_VIVT)
#define __CACHEID_NEVER (~CACHEID_VIVT)
#elif !defined(CONFIG_CPU_CACHE_VIVT) && defined(CONFIG_CPU_CACHE_VIPT)
#define __CACHEID_ALWAYS (0)
#define __CACHEID_NEVER (CACHEID_VIVT)
#else
#define __CACHEID_ALWAYS (0)
#define __CACHEID_NEVER (0)
#endif
static inline unsigned int __attribute__((pure)) cacheid_is(unsigned int mask)
{
return (__CACHEID_ALWAYS & mask) |
(~__CACHEID_NEVER & __CACHEID_ARCH_MIN & mask & cacheid);
}
#endif

64
arch/arm/include/asm/cputype.h Normal file
View file

@ -0,0 +1,64 @@
#ifndef __ASM_ARM_CPUTYPE_H
#define __ASM_ARM_CPUTYPE_H
#include <linux/stringify.h>
#define CPUID_ID 0
#define CPUID_CACHETYPE 1
#define CPUID_TCM 2
#define CPUID_TLBTYPE 3
#ifdef CONFIG_CPU_CP15
#define read_cpuid(reg) \
({ \
unsigned int __val; \
asm("mrc p15, 0, %0, c0, c0, " __stringify(reg) \
: "=r" (__val) \
: \
: "cc"); \
__val; \
})
#else
extern unsigned int processor_id;
#define read_cpuid(reg) (processor_id)
#endif
/*
* The CPU ID never changes at run time, so we might as well tell the
* compiler that it's constant. Use this function to read the CPU ID
* rather than directly reading processor_id or read_cpuid() directly.
*/
static inline unsigned int __attribute_const__ read_cpuid_id(void)
{
return read_cpuid(CPUID_ID);
}
static inline unsigned int __attribute_const__ read_cpuid_cachetype(void)
{
return read_cpuid(CPUID_CACHETYPE);
}
/*
* Intel's XScale3 core supports some v6 features (supersections, L2)
* but advertises itself as v5 as it does not support the v6 ISA. For
* this reason, we need a way to explicitly test for this type of CPU.
*/
#ifndef CONFIG_CPU_XSC3
#define cpu_is_xsc3() 0
#else
static inline int cpu_is_xsc3(void)
{
if ((read_cpuid_id() & 0xffffe000) == 0x69056000)
return 1;
return 0;
}
#endif
#if !defined(CONFIG_CPU_XSCALE) && !defined(CONFIG_CPU_XSC3)
#define cpu_is_xscale() 0
#else
#define cpu_is_xscale() 1
#endif
#endif

474
arch/arm/include/asm/dma-mapping.h
View file

@ -104,15 +104,14 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
* Dummy noncoherent implementation. We don't provide a dma_cache_sync
* function so drivers using this API are highlighted with build warnings.
*/
static inline void *
dma_alloc_noncoherent(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp)
static inline void *dma_alloc_noncoherent(struct device *dev, size_t size,
dma_addr_t *handle, gfp_t gfp)
{
return NULL;
}
static inline void
dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t handle)
static inline void dma_free_noncoherent(struct device *dev, size_t size,
void *cpu_addr, dma_addr_t handle)
{
}
@ -127,8 +126,7 @@ dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr,
* return the CPU-viewed address, and sets @handle to be the
* device-viewed address.
*/
extern void *
dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp);
extern void *dma_alloc_coherent(struct device *, size_t, dma_addr_t *, gfp_t);
/**
* dma_free_coherent - free memory allocated by dma_alloc_coherent
@ -143,9 +141,7 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gf
* References to memory and mappings associated with cpu_addr/handle
* during and after this call executing are illegal.
*/
extern void
dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t handle);
extern void dma_free_coherent(struct device *, size_t, void *, dma_addr_t);
/**
* dma_mmap_coherent - map a coherent DMA allocation into user space
@ -159,8 +155,8 @@ dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
* into user space. The coherent DMA buffer must not be freed by the
* driver until the user space mapping has been released.
*/
int dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t handle, size_t size);
int dma_mmap_coherent(struct device *, struct vm_area_struct *,
void *, dma_addr_t, size_t);
/**
@ -174,282 +170,16 @@ int dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
* return the CPU-viewed address, and sets @handle to be the
* device-viewed address.
*/
extern void *
dma_alloc_writecombine(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp);
extern void *dma_alloc_writecombine(struct device *, size_t, dma_addr_t *,
gfp_t);
#define dma_free_writecombine(dev,size,cpu_addr,handle) \
dma_free_coherent(dev,size,cpu_addr,handle)
int dma_mmap_writecombine(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t handle, size_t size);
int dma_mmap_writecombine(struct device *, struct vm_area_struct *,
void *, dma_addr_t, size_t);
/**
* dma_map_single - map a single buffer for streaming DMA
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
* @cpu_addr: CPU direct mapped address of buffer
* @size: size of buffer to map
* @dir: DMA transfer direction
*
* Ensure that any data held in the cache is appropriately discarded
* or written back.
*
* The device owns this memory once this call has completed. The CPU
* can regain ownership by calling dma_unmap_single() or
* dma_sync_single_for_cpu().
*/
#ifndef CONFIG_DMABOUNCE
static inline dma_addr_t
dma_map_single(struct device *dev, void *cpu_addr, size_t size,
enum dma_data_direction dir)
{
if (!arch_is_coherent())
dma_cache_maint(cpu_addr, size, dir);
return virt_to_dma(dev, cpu_addr);
}
#else
extern dma_addr_t dma_map_single(struct device *,void *, size_t, enum dma_data_direction);
#endif
/**
* dma_map_page - map a portion of a page for streaming DMA
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
* @page: page that buffer resides in
* @offset: offset into page for start of buffer
* @size: size of buffer to map
* @dir: DMA transfer direction
*
* Ensure that any data held in the cache is appropriately discarded
* or written back.
*
* The device owns this memory once this call has completed. The CPU
* can regain ownership by calling dma_unmap_page() or
* dma_sync_single_for_cpu().
*/
static inline dma_addr_t
dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size,
enum dma_data_direction dir)
{
return dma_map_single(dev, page_address(page) + offset, size, dir);
}
/**
* dma_unmap_single - unmap a single buffer previously mapped
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
* @handle: DMA address of buffer
* @size: size of buffer to map
* @dir: DMA transfer direction
*
* Unmap a single streaming mode DMA translation. The handle and size
* must match what was provided in the previous dma_map_single() call.
* All other usages are undefined.
*
* After this call, reads by the CPU to the buffer are guaranteed to see
* whatever the device wrote there.
*/
#ifndef CONFIG_DMABOUNCE
static inline void
dma_unmap_single(struct device *dev, dma_addr_t handle, size_t size,
enum dma_data_direction dir)
{
/* nothing to do */
}
#else
extern void dma_unmap_single(struct device *, dma_addr_t, size_t, enum dma_data_direction);
#endif
/**
* dma_unmap_page - unmap a buffer previously mapped through dma_map_page()
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
* @handle: DMA address of buffer
* @size: size of buffer to map
* @dir: DMA transfer direction
*
* Unmap a single streaming mode DMA translation. The handle and size
* must match what was provided in the previous dma_map_single() call.
* All other usages are undefined.
*
* After this call, reads by the CPU to the buffer are guaranteed to see
* whatever the device wrote there.
*/
static inline void
dma_unmap_page(struct device *dev, dma_addr_t handle, size_t size,
enum dma_data_direction dir)
{
dma_unmap_single(dev, handle, size, dir);
}
/**
* dma_map_sg - map a set of SG buffers for streaming mode DMA
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
* @sg: list of buffers
* @nents: number of buffers to map
* @dir: DMA transfer direction
*
* Map a set of buffers described by scatterlist in streaming
* mode for DMA. This is the scatter-gather version of the
* above dma_map_single interface. Here the scatter gather list
* elements are each tagged with the appropriate dma address
* and length. They are obtained via sg_dma_{address,length}(SG).
*
* NOTE: An implementation may be able to use a smaller number of
* DMA address/length pairs than there are SG table elements.
* (for example via virtual mapping capabilities)
* The routine returns the number of addr/length pairs actually
* used, at most nents.
*
* Device ownership issues as mentioned above for dma_map_single are
* the same here.
*/
#ifndef CONFIG_DMABOUNCE
static inline int
dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
enum dma_data_direction dir)
{
int i;
for (i = 0; i < nents; i++, sg++) {
char *virt;
sg->dma_address = page_to_dma(dev, sg_page(sg)) + sg->offset;
virt = sg_virt(sg);
if (!arch_is_coherent())
dma_cache_maint(virt, sg->length, dir);
}
return nents;
}
#else
extern int dma_map_sg(struct device *, struct scatterlist *, int, enum dma_data_direction);
#endif
/**
* dma_unmap_sg - unmap a set of SG buffers mapped by dma_map_sg
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
* @sg: list of buffers
* @nents: number of buffers to map
* @dir: DMA transfer direction
*
* Unmap a set of streaming mode DMA translations.
* Again, CPU read rules concerning calls here are the same as for
* dma_unmap_single() above.
*/
#ifndef CONFIG_DMABOUNCE
static inline void
dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
enum dma_data_direction dir)
{
/* nothing to do */
}
#else
extern void dma_unmap_sg(struct device *, struct scatterlist *, int, enum dma_data_direction);
#endif
/**
* dma_sync_single_range_for_cpu
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
* @handle: DMA address of buffer
* @offset: offset of region to start sync
* @size: size of region to sync
* @dir: DMA transfer direction (same as passed to dma_map_single)
*
* Make physical memory consistent for a single streaming mode DMA
* translation after a transfer.
*
* If you perform a dma_map_single() but wish to interrogate the
* buffer using the cpu, yet do not wish to teardown the PCI dma
* mapping, you must call this function before doing so. At the
* next point you give the PCI dma address back to the card, you
* must first the perform a dma_sync_for_device, and then the
* device again owns the buffer.
*/
#ifndef CONFIG_DMABOUNCE
static inline void
dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t handle,
unsigned long offset, size_t size,
enum dma_data_direction dir)
{
if (!arch_is_coherent())
dma_cache_maint(dma_to_virt(dev, handle) + offset, size, dir);
}
static inline void
dma_sync_single_range_for_device(struct device *dev, dma_addr_t handle,
unsigned long offset, size_t size,
enum dma_data_direction dir)
{
if (!arch_is_coherent())
dma_cache_maint(dma_to_virt(dev, handle) + offset, size, dir);
}
#else
extern void dma_sync_single_range_for_cpu(struct device *, dma_addr_t, unsigned long, size_t, enum dma_data_direction);
extern void dma_sync_single_range_for_device(struct device *, dma_addr_t, unsigned long, size_t, enum dma_data_direction);
#endif
static inline void
dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle, size_t size,
enum dma_data_direction dir)
{
dma_sync_single_range_for_cpu(dev, handle, 0, size, dir);
}
static inline void
dma_sync_single_for_device(struct device *dev, dma_addr_t handle, size_t size,
enum dma_data_direction dir)
{
dma_sync_single_range_for_device(dev, handle, 0, size, dir);
}
/**
* dma_sync_sg_for_cpu
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
* @sg: list of buffers
* @nents: number of buffers to map
* @dir: DMA transfer direction
*
* Make physical memory consistent for a set of streaming
* mode DMA translations after a transfer.
*
* The same as dma_sync_single_for_* but for a scatter-gather list,
* same rules and usage.
*/
#ifndef CONFIG_DMABOUNCE
static inline void
dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents,
enum dma_data_direction dir)
{
int i;
for (i = 0; i < nents; i++, sg++) {
char *virt = sg_virt(sg);
if (!arch_is_coherent())
dma_cache_maint(virt, sg->length, dir);
}
}
static inline void
dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents,
enum dma_data_direction dir)
{
int i;
for (i = 0; i < nents; i++, sg++) {
char *virt = sg_virt(sg);
if (!arch_is_coherent())
dma_cache_maint(virt, sg->length, dir);
}
}
#else
extern void dma_sync_sg_for_cpu(struct device*, struct scatterlist*, int, enum dma_data_direction);
extern void dma_sync_sg_for_device(struct device*, struct scatterlist*, int, enum dma_data_direction);
#endif
#ifdef CONFIG_DMABOUNCE
/*
* For SA-1111, IXP425, and ADI systems the dma-mapping functions are "magic"
@ -475,7 +205,8 @@ extern void dma_sync_sg_for_device(struct device*, struct scatterlist*, int, enu
* appropriate DMA pools for the device.
*
*/
extern int dmabounce_register_dev(struct device *, unsigned long, unsigned long);
extern int dmabounce_register_dev(struct device *, unsigned long,
unsigned long);
/**
* dmabounce_unregister_dev
@ -506,7 +237,184 @@ extern void dmabounce_unregister_dev(struct device *);
*
*/
extern int dma_needs_bounce(struct device*, dma_addr_t, size_t);
/*
* The DMA API, implemented by dmabounce.c. See below for descriptions.
*/
extern dma_addr_t dma_map_single(struct device *, void *, size_t,
enum dma_data_direction);
extern dma_addr_t dma_map_page(struct device *, struct page *,
unsigned long, size_t, enum dma_data_direction);
extern void dma_unmap_single(struct device *, dma_addr_t, size_t,
enum dma_data_direction);
/*
* Private functions
*/
int dmabounce_sync_for_cpu(struct device *, dma_addr_t, unsigned long,
size_t, enum dma_data_direction);
int dmabounce_sync_for_device(struct device *, dma_addr_t, unsigned long,
size_t, enum dma_data_direction);
#else
#define dmabounce_sync_for_cpu(dev,dma,off,sz,dir) (1)
#define dmabounce_sync_for_device(dev,dma,off,sz,dir) (1)
/**
* dma_map_single - map a single buffer for streaming DMA
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
* @cpu_addr: CPU direct mapped address of buffer
* @size: size of buffer to map
* @dir: DMA transfer direction
*
* Ensure that any data held in the cache is appropriately discarded
* or written back.
*
* The device owns this memory once this call has completed. The CPU
* can regain ownership by calling dma_unmap_single() or
* dma_sync_single_for_cpu().
*/
static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
size_t size, enum dma_data_direction dir)
{
BUG_ON(!valid_dma_direction(dir));
if (!arch_is_coherent())
dma_cache_maint(cpu_addr, size, dir);
return virt_to_dma(dev, cpu_addr);
}
/**
* dma_map_page - map a portion of a page for streaming DMA
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
* @page: page that buffer resides in
* @offset: offset into page for start of buffer
* @size: size of buffer to map
* @dir: DMA transfer direction
*
* Ensure that any data held in the cache is appropriately discarded
* or written back.
*
* The device owns this memory once this call has completed. The CPU
* can regain ownership by calling dma_unmap_page().
*/
static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size, enum dma_data_direction dir)
{
BUG_ON(!valid_dma_direction(dir));
if (!arch_is_coherent())
dma_cache_maint(page_address(page) + offset, size, dir);
return page_to_dma(dev, page) + offset;
}
/**
* dma_unmap_single - unmap a single buffer previously mapped
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
* @handle: DMA address of buffer
* @size: size of buffer (same as passed to dma_map_single)
* @dir: DMA transfer direction (same as passed to dma_map_single)
*
* Unmap a single streaming mode DMA translation. The handle and size
* must match what was provided in the previous dma_map_single() call.
* All other usages are undefined.
*
* After this call, reads by the CPU to the buffer are guaranteed to see
* whatever the device wrote there.
*/
static inline void dma_unmap_single(struct device *dev, dma_addr_t handle,
size_t size, enum dma_data_direction dir)
{
/* nothing to do */
}
#endif /* CONFIG_DMABOUNCE */
/**
* dma_unmap_page - unmap a buffer previously mapped through dma_map_page()
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
* @handle: DMA address of buffer
* @size: size of buffer (same as passed to dma_map_page)
* @dir: DMA transfer direction (same as passed to dma_map_page)
*
* Unmap a page streaming mode DMA translation. The handle and size
* must match what was provided in the previous dma_map_page() call.
* All other usages are undefined.
*
* After this call, reads by the CPU to the buffer are guaranteed to see
* whatever the device wrote there.
*/
static inline void dma_unmap_page(struct device *dev, dma_addr_t handle,
size_t size, enum dma_data_direction dir)
{
dma_unmap_single(dev, handle, size, dir);
}
/**
* dma_sync_single_range_for_cpu
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
* @handle: DMA address of buffer
* @offset: offset of region to start sync
* @size: size of region to sync
* @dir: DMA transfer direction (same as passed to dma_map_single)
*
* Make physical memory consistent for a single streaming mode DMA
* translation after a transfer.
*
* If you perform a dma_map_single() but wish to interrogate the
* buffer using the cpu, yet do not wish to teardown the PCI dma
* mapping, you must call this function before doing so. At the
* next point you give the PCI dma address back to the card, you
* must first the perform a dma_sync_for_device, and then the
* device again owns the buffer.
*/
static inline void dma_sync_single_range_for_cpu(struct device *dev,
dma_addr_t handle, unsigned long offset, size_t size,
enum dma_data_direction dir)
{
BUG_ON(!valid_dma_direction(dir));
dmabounce_sync_for_cpu(dev, handle, offset, size, dir);
}
static inline void dma_sync_single_range_for_device(struct device *dev,
dma_addr_t handle, unsigned long offset, size_t size,
enum dma_data_direction dir)
{
BUG_ON(!valid_dma_direction(dir));
if (!dmabounce_sync_for_device(dev, handle, offset, size, dir))
return;
if (!arch_is_coherent())
dma_cache_maint(dma_to_virt(dev, handle) + offset, size, dir);
}
static inline void dma_sync_single_for_cpu(struct device *dev,
dma_addr_t handle, size_t size, enum dma_data_direction dir)
{
dma_sync_single_range_for_cpu(dev, handle, 0, size, dir);
}
static inline void dma_sync_single_for_device(struct device *dev,
dma_addr_t handle, size_t size, enum dma_data_direction dir)
{
dma_sync_single_range_for_device(dev, handle, 0, size, dir);
}
/*
* The scatter list versions of the above methods.
*/
extern int dma_map_sg(struct device *, struct scatterlist *, int,
enum dma_data_direction);
extern void dma_unmap_sg(struct device *, struct scatterlist *, int,
enum dma_data_direction);
extern void dma_sync_sg_for_cpu(struct device *, struct scatterlist *, int,
enum dma_data_direction);
extern void dma_sync_sg_for_device(struct device *, struct scatterlist *, int,
enum dma_data_direction);
#endif /* __KERNEL__ */
#endif

124
arch/arm/include/asm/futex.h
View file

@ -1,6 +1,124 @@
#ifndef _ASM_FUTEX_H
#define _ASM_FUTEX_H
#ifndef _ASM_ARM_FUTEX_H
#define _ASM_ARM_FUTEX_H
#ifdef __KERNEL__
#ifdef CONFIG_SMP
#include <asm-generic/futex.h>
#endif
#else /* !SMP, we can work around lack of atomic ops by disabling preemption */
#include <linux/futex.h>
#include <linux/preempt.h>
#include <linux/uaccess.h>
#include <asm/errno.h>
#define __futex_atomic_op(insn, ret, oldval, uaddr, oparg) \
__asm__ __volatile__( \
"1: ldrt %1, [%2]\n" \
" " insn "\n" \
"2: strt %0, [%2]\n" \
" mov %0, #0\n" \
"3:\n" \
" .section __ex_table,\"a\"\n" \
" .align 3\n" \
" .long 1b, 4f, 2b, 4f\n" \
" .previous\n" \
" .section .fixup,\"ax\"\n" \
"4: mov %0, %4\n" \
" b 3b\n" \
" .previous" \
: "=&r" (ret), "=&r" (oldval) \
: "r" (uaddr), "r" (oparg), "Ir" (-EFAULT) \
: "cc", "memory")
static inline int
futex_atomic_op_inuser (int encoded_op, int __user *uaddr)
{
int op = (encoded_op >> 28) & 7;
int cmp = (encoded_op >> 24) & 15;
int oparg = (encoded_op << 8) >> 20;
int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, ret;
if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
oparg = 1 << oparg;
if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
return -EFAULT;
pagefault_disable(); /* implies preempt_disable() */
switch (op) {
case FUTEX_OP_SET:
__futex_atomic_op("mov %0, %3", ret, oldval, uaddr, oparg);
break;
case FUTEX_OP_ADD:
__futex_atomic_op("add %0, %1, %3", ret, oldval, uaddr, oparg);
break;
case FUTEX_OP_OR:
__futex_atomic_op("orr %0, %1, %3", ret, oldval, uaddr, oparg);
break;
case FUTEX_OP_ANDN:
__futex_atomic_op("and %0, %1, %3", ret, oldval, uaddr, ~oparg);
break;
case FUTEX_OP_XOR:
__futex_atomic_op("eor %0, %1, %3", ret, oldval, uaddr, oparg);
break;
default:
ret = -ENOSYS;
}
pagefault_enable(); /* subsumes preempt_enable() */
if (!ret) {
switch (cmp) {
case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
default: ret = -ENOSYS;
}
}
return ret;
}
static inline int
futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
{
int val;
if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
return -EFAULT;
pagefault_disable(); /* implies preempt_disable() */
__asm__ __volatile__("@futex_atomic_cmpxchg_inatomic\n"
"1: ldrt %0, [%3]\n"
" teq %0, %1\n"
"2: streqt %2, [%3]\n"
"3:\n"
" .section __ex_table,\"a\"\n"
" .align 3\n"
" .long 1b, 4f, 2b, 4f\n"
" .previous\n"
" .section .fixup,\"ax\"\n"
"4: mov %0, %4\n"
" b 3b\n"
" .previous"
: "=&r" (val)
: "r" (oldval), "r" (newval), "r" (uaddr), "Ir" (-EFAULT)
: "cc", "memory");
pagefault_enable(); /* subsumes preempt_enable() */
return val;
}
#endif /* !SMP */
#endif /* __KERNEL__ */
#endif /* _ASM_ARM_FUTEX_H */

4
arch/arm/include/asm/irq.h
View file

@ -22,6 +22,10 @@
#ifndef __ASSEMBLY__
struct irqaction;
extern void migrate_irqs(void);
extern void asm_do_IRQ(unsigned int, struct pt_regs *);
void init_IRQ(void);
#endif
#endif

1
arch/arm/include/asm/kprobes.h
View file

@ -61,7 +61,6 @@ struct kprobe_ctlblk {
void arch_remove_kprobe(struct kprobe *);
void kretprobe_trampoline(void);
int kprobe_trap_handler(struct pt_regs *regs, unsigned int instr);
int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
int kprobe_exceptions_notify(struct notifier_block *self,
unsigned long val, void *data);

2
arch/arm/include/asm/mc146818rtc.h
View file

@ -4,8 +4,8 @@
#ifndef _ASM_MC146818RTC_H
#define _ASM_MC146818RTC_H
#include <linux/io.h>
#include <mach/irqs.h>
#include <asm/io.h>
#ifndef RTC_PORT
#define RTC_PORT(x) (0x70 + (x))

40
arch/arm/include/asm/memory.h
View file

@ -13,43 +13,33 @@
#ifndef __ASM_ARM_MEMORY_H
#define __ASM_ARM_MEMORY_H
#include <linux/compiler.h>
#include <linux/const.h>
#include <mach/memory.h>
#include <asm/sizes.h>
/*
* Allow for constants defined here to be used from assembly code
* by prepending the UL suffix only with actual C code compilation.
*/
#ifndef __ASSEMBLY__
#define UL(x) (x##UL)
#else
#define UL(x) (x)
#endif
#include <linux/compiler.h>
#include <mach/memory.h>
#include <asm/sizes.h>
#define UL(x) _AC(x, UL)
#ifdef CONFIG_MMU
#ifndef TASK_SIZE
/*
* PAGE_OFFSET - the virtual address of the start of the kernel image
* TASK_SIZE - the maximum size of a user space task.
* TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area
*/
#define TASK_SIZE UL(0xbf000000)
#define TASK_UNMAPPED_BASE UL(0x40000000)
#endif
#define PAGE_OFFSET UL(CONFIG_PAGE_OFFSET)
#define TASK_SIZE (UL(CONFIG_PAGE_OFFSET) - UL(0x01000000))
#define TASK_UNMAPPED_BASE (UL(CONFIG_PAGE_OFFSET) / 3)
/*
* The maximum size of a 26-bit user space task.
*/
#define TASK_SIZE_26 UL(0x04000000)
/*
* Page offset: 3GB
*/
#ifndef PAGE_OFFSET
#define PAGE_OFFSET UL(0xc0000000)
#endif
/*
* The module space lives between the addresses given by TASK_SIZE
* and PAGE_OFFSET - it must be within 32MB of the kernel text.
@ -147,16 +137,10 @@
#ifndef arch_adjust_zones
#define arch_adjust_zones(node,size,holes) do { } while (0)
#elif !defined(CONFIG_ZONE_DMA)
#error "custom arch_adjust_zones() requires CONFIG_ZONE_DMA"
#endif
/*
* Amount of memory reserved for the vmalloc() area, and minimum
* address for vmalloc mappings.
*/
extern unsigned long vmalloc_reserve;
#define VMALLOC_MIN (void *)(VMALLOC_END - vmalloc_reserve)
/*
* PFNs are used to describe any physical page; this means
* PFN 0 == physical address 0.

1
arch/arm/include/asm/mmu_context.h
View file

@ -15,6 +15,7 @@
#include <linux/compiler.h>
#include <asm/cacheflush.h>
#include <asm/cachetype.h>
#include <asm/proc-fns.h>
#include <asm-generic/mm_hooks.h>

5
arch/arm/include/asm/pgtable.h
View file

@ -319,11 +319,6 @@ static inline pte_t *pmd_page_vaddr(pmd_t pmd)
#define pmd_page(pmd) virt_to_page(__va(pmd_val(pmd)))
/*
* Permanent address of a page. We never have highmem, so this is trivial.
*/
#define pages_to_mb(x) ((x) >> (20 - PAGE_SHIFT))
/*
* Conversion functions: convert a page and protection to a page entry,
* and a page entry and page directory to the page they refer to.

7
arch/arm/include/asm/ptrace.h
View file

@ -54,7 +54,6 @@
#define PSR_C_BIT 0x20000000
#define PSR_Z_BIT 0x40000000
#define PSR_N_BIT 0x80000000
#define PCMASK 0
/*
* Groups of PSR bits
@ -139,11 +138,7 @@ static inline int valid_user_regs(struct pt_regs *regs)
return 0;
}
#define pc_pointer(v) \
((v) & ~PCMASK)
#define instruction_pointer(regs) \
(pc_pointer((regs)->ARM_pc))
#define instruction_pointer(regs) (regs)->ARM_pc
#ifdef CONFIG_SMP
extern unsigned long profile_pc(struct pt_regs *regs);

11
arch/arm/include/asm/setup.h
View file

@ -209,6 +209,17 @@ struct meminfo {
struct membank bank[NR_BANKS];
};
#define for_each_nodebank(iter,mi,no) \
for (iter = 0; iter < mi->nr_banks; iter++) \
if (mi->bank[iter].node == no)
#define bank_pfn_start(bank) __phys_to_pfn((bank)->start)
#define bank_pfn_end(bank) __phys_to_pfn((bank)->start + (bank)->size)
#define bank_pfn_size(bank) ((bank)->size >> PAGE_SHIFT)
#define bank_phys_start(bank) (bank)->start
#define bank_phys_end(bank) ((bank)->start + (bank)->size)
#define bank_phys_size(bank) (bank)->size
/*
* Early command line parameters.
*/

20
arch/arm/include/asm/sparsemem.h
View file

@ -3,8 +3,22 @@
#include <asm/memory.h>
#define MAX_PHYSADDR_BITS 32
#define MAX_PHYSMEM_BITS 32
#define SECTION_SIZE_BITS NODE_MEM_SIZE_BITS
/*
* Two definitions are required for sparsemem:
*
* MAX_PHYSMEM_BITS: The number of physical address bits required
* to address the last byte of memory.
*
* SECTION_SIZE_BITS: The number of physical address bits to cover
* the maximum amount of memory in a section.
*
* Eg, if you have 2 banks of up to 64MB at 0x80000000, 0x84000000,
* then MAX_PHYSMEM_BITS is 32, SECTION_SIZE_BITS is 26.
*
* Define these in your mach/memory.h.
*/
#if !defined(SECTION_SIZE_BITS) || !defined(MAX_PHYSMEM_BITS)
#error Sparsemem is not supported on this platform
#endif
#endif

58
arch/arm/include/asm/system.h
View file

@ -43,11 +43,6 @@
#define CR_XP (1 << 23) /* Extended page tables */
#define CR_VE (1 << 24) /* Vectored interrupts */
#define CPUID_ID 0
#define CPUID_CACHETYPE 1
#define CPUID_TCM 2
#define CPUID_TLBTYPE 3
/*
* This is used to ensure the compiler did actually allocate the register we
* asked it for some inline assembly sequences. Apparently we can't trust
@ -61,36 +56,8 @@
#ifndef __ASSEMBLY__
#include <linux/linkage.h>
#include <linux/stringify.h>
#include <linux/irqflags.h>
#ifdef CONFIG_CPU_CP15
#define read_cpuid(reg) \
({ \
unsigned int __val; \
asm("mrc p15, 0, %0, c0, c0, " __stringify(reg) \
: "=r" (__val) \
: \
: "cc"); \
__val; \
})
#else
extern unsigned int processor_id;
#define read_cpuid(reg) (processor_id)
#endif
/*
* The CPU ID never changes at run time, so we might as well tell the
* compiler that it's constant. Use this function to read the CPU ID
* rather than directly reading processor_id or read_cpuid() directly.
*/
static inline unsigned int read_cpuid_id(void) __attribute_const__;
static inline unsigned int read_cpuid_id(void)
{
return read_cpuid(CPUID_ID);
}
#define __exception __attribute__((section(".exception.text")))
struct thread_info;
@ -131,31 +98,6 @@ extern void cpu_init(void);
void arm_machine_restart(char mode);
extern void (*arm_pm_restart)(char str);
/*
* Intel's XScale3 core supports some v6 features (supersections, L2)
* but advertises itself as v5 as it does not support the v6 ISA. For
* this reason, we need a way to explicitly test for this type of CPU.
*/
#ifndef CONFIG_CPU_XSC3
#define cpu_is_xsc3() 0
#else
static inline int cpu_is_xsc3(void)
{
extern unsigned int processor_id;
if ((processor_id & 0xffffe000) == 0x69056000)
return 1;
return 0;
}
#endif
#if !defined(CONFIG_CPU_XSCALE) && !defined(CONFIG_CPU_XSC3)
#define cpu_is_xscale() 0
#else
#define cpu_is_xscale() 1
#endif
#define UDBG_UNDEFINED (1 << 0)
#define UDBG_SYSCALL (1 << 1)
#define UDBG_BADABORT (1 << 2)

2
arch/arm/include/asm/thread_info.h
View file

@ -98,7 +98,7 @@ static inline struct thread_info *current_thread_info(void)
}
#define thread_saved_pc(tsk) \
((unsigned long)(pc_pointer(task_thread_info(tsk)->cpu_context.pc)))
((unsigned long)(task_thread_info(tsk)->cpu_context.pc))
#define thread_saved_fp(tsk) \
((unsigned long)(task_thread_info(tsk)->cpu_context.fp))

10
arch/arm/include/asm/uaccess.h
View file

@ -225,7 +225,7 @@ do { \
#define __get_user_asm_byte(x,addr,err) \
__asm__ __volatile__( \
"1: ldrbt %1,[%2],#0\n" \
"1: ldrbt %1,[%2]\n" \
"2:\n" \
" .section .fixup,\"ax\"\n" \
" .align 2\n" \
@ -261,7 +261,7 @@ do { \
#define __get_user_asm_word(x,addr,err) \
__asm__ __volatile__( \
"1: ldrt %1,[%2],#0\n" \
"1: ldrt %1,[%2]\n" \
"2:\n" \
" .section .fixup,\"ax\"\n" \
" .align 2\n" \
@ -306,7 +306,7 @@ do { \
#define __put_user_asm_byte(x,__pu_addr,err) \
__asm__ __volatile__( \
"1: strbt %1,[%2],#0\n" \
"1: strbt %1,[%2]\n" \
"2:\n" \
" .section .fixup,\"ax\"\n" \
" .align 2\n" \
@ -339,7 +339,7 @@ do { \
#define __put_user_asm_word(x,__pu_addr,err) \
__asm__ __volatile__( \
"1: strt %1,[%2],#0\n" \
"1: strt %1,[%2]\n" \
"2:\n" \
" .section .fixup,\"ax\"\n" \
" .align 2\n" \
@ -365,7 +365,7 @@ do { \
#define __put_user_asm_dword(x,__pu_addr,err) \
__asm__ __volatile__( \
"1: strt " __reg_oper1 ", [%1], #4\n" \
"2: strt " __reg_oper0 ", [%1], #0\n" \
"2: strt " __reg_oper0 ", [%1]\n" \
"3:\n" \
" .section .fixup,\"ax\"\n" \
" .align 2\n" \

2
arch/arm/include/asm/vga.h
View file

@ -1,8 +1,8 @@
#ifndef ASMARM_VGA_H
#define ASMARM_VGA_H
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/io.h>
#define VGA_MAP_MEM(x,s) (PCIMEM_BASE + (x))

4
arch/arm/kernel/armksyms.c
View file

@ -13,11 +13,11 @@
#include <linux/delay.h>
#include <linux/in6.h>
#include <linux/syscalls.h>
#include <linux/uaccess.h>
#include <linux/io.h>
#include <asm/checksum.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/ftrace.h>
/*

2
arch/arm/kernel/bios32.c
View file

@ -10,8 +10,8 @@
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/io.h>
#include <asm/io.h>
#include <asm/mach-types.h>
#include <asm/mach/pci.h>

2
arch/arm/kernel/crunch.c
View file

@ -15,9 +15,9 @@
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/init.h>
#include <linux/io.h>
#include <mach/ep93xx-regs.h>
#include <asm/thread_notify.h>
#include <asm/io.h>
struct crunch_state *crunch_owner;

5
arch/arm/kernel/debug.S
View file

@ -89,10 +89,12 @@
ENTRY(printhex8)
mov r1, #8
b printhex
ENDPROC(printhex8)
ENTRY(printhex4)
mov r1, #4
b printhex
ENDPROC(printhex4)
ENTRY(printhex2)
mov r1, #2
@ -110,6 +112,7 @@ printhex: adr r2, hexbuf
bne 1b
mov r0, r2
b printascii
ENDPROC(printhex2)
.ltorg
@ -127,11 +130,13 @@ ENTRY(printascii)
teqne r1, #0
bne 1b
mov pc, lr
ENDPROC(printascii)
ENTRY(printch)
addruart r3
mov r1, r0
mov r0, #0
b 1b
ENDPROC(printch)
hexbuf: .space 16

3
arch/arm/kernel/dma-isa.c
View file

@ -19,10 +19,9 @@
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <asm/dma.h>
#include <asm/io.h>
#include <asm/mach/dma.h>
#define ISA_DMA_MODE_READ 0x44

16
arch/arm/kernel/entry-armv.S
View file

@ -76,14 +76,17 @@
__pabt_invalid:
inv_entry BAD_PREFETCH
b common_invalid
ENDPROC(__pabt_invalid)
__dabt_invalid:
inv_entry BAD_DATA
b common_invalid
ENDPROC(__dabt_invalid)
__irq_invalid:
inv_entry BAD_IRQ
b common_invalid
ENDPROC(__irq_invalid)
__und_invalid:
inv_entry BAD_UNDEFINSTR
@ -107,6 +110,7 @@ common_invalid:
mov r0, sp
b bad_mode
ENDPROC(__und_invalid)
/*
* SVC mode handlers
@ -192,6 +196,7 @@ __dabt_svc:
ldr r0, [sp, #S_PSR]
msr spsr_cxsf, r0
ldmia sp, {r0 - pc}^ @ load r0 - pc, cpsr
ENDPROC(__dabt_svc)
.align 5
__irq_svc:
@ -223,6 +228,7 @@ __irq_svc:
bleq trace_hardirqs_on
#endif
ldmia sp, {r0 - pc}^ @ load r0 - pc, cpsr
ENDPROC(__irq_svc)
.ltorg
@ -272,6 +278,7 @@ __und_svc:
ldr lr, [sp, #S_PSR] @ Get SVC cpsr
msr spsr_cxsf, lr
ldmia sp, {r0 - pc}^ @ Restore SVC registers
ENDPROC(__und_svc)
.align 5
__pabt_svc:
@ -313,6 +320,7 @@ __pabt_svc:
ldr r0, [sp, #S_PSR]
msr spsr_cxsf, r0
ldmia sp, {r0 - pc}^ @ load r0 - pc, cpsr
ENDPROC(__pabt_svc)
.align 5
.LCcralign:
@ -412,6 +420,7 @@ __dabt_usr:
mov r2, sp
adr lr, ret_from_exception
b do_DataAbort
ENDPROC(__dabt_usr)
.align 5
__irq_usr:
@ -441,6 +450,7 @@ __irq_usr:
mov why, #0
b ret_to_user
ENDPROC(__irq_usr)
.ltorg
@ -474,6 +484,7 @@ __und_usr:
#else
b __und_usr_unknown
#endif
ENDPROC(__und_usr)
@
@ fallthrough to call_fpe
@ -642,6 +653,7 @@ __und_usr_unknown:
mov r0, sp
adr lr, ret_from_exception
b do_undefinstr
ENDPROC(__und_usr_unknown)
.align 5
__pabt_usr:
@ -666,6 +678,8 @@ ENTRY(ret_from_exception)
get_thread_info tsk
mov why, #0
b ret_to_user
ENDPROC(__pabt_usr)
ENDPROC(ret_from_exception)
/*
* Register switch for ARMv3 and ARMv4 processors
@ -702,6 +716,7 @@ ENTRY(__switch_to)
bl atomic_notifier_call_chain
mov r0, r5
ldmia r4, {r4 - sl, fp, sp, pc} @ Load all regs saved previously
ENDPROC(__switch_to)
__INIT
@ -1029,6 +1044,7 @@ vector_\name:
mov r0, sp
ldr lr, [pc, lr, lsl #2]
movs pc, lr @ branch to handler in SVC mode
ENDPROC(vector_\name)
.endm
.globl __stubs_start

25
arch/arm/kernel/entry-common.S
View file

@ -77,6 +77,7 @@ no_work_pending:
mov r0, r0
add sp, sp, #S_FRAME_SIZE - S_PC
movs pc, lr @ return & move spsr_svc into cpsr
ENDPROC(ret_to_user)
/*
* This is how we return from a fork.
@ -92,7 +93,7 @@ ENTRY(ret_from_fork)
mov r0, #1 @ trace exit [IP = 1]
bl syscall_trace
b ret_slow_syscall
ENDPROC(ret_from_fork)
.equ NR_syscalls,0
#define CALL(x) .equ NR_syscalls,NR_syscalls+1
@ -269,6 +270,7 @@ ENTRY(vector_swi)
eor r0, scno, #__NR_SYSCALL_BASE @ put OS number back
bcs arm_syscall
b sys_ni_syscall @ not private func
ENDPROC(vector_swi)
/*
* This is the really slow path. We're going to be doing
@ -326,7 +328,6 @@ ENTRY(sys_call_table)
*/
@ r0 = syscall number
@ r8 = syscall table
.type sys_syscall, #function
sys_syscall:
bic scno, r0, #__NR_OABI_SYSCALL_BASE
cmp scno, #__NR_syscall - __NR_SYSCALL_BASE
@ -338,53 +339,65 @@ sys_syscall:
movlo r3, r4
ldrlo pc, [tbl, scno, lsl #2]
b sys_ni_syscall
ENDPROC(sys_syscall)
sys_fork_wrapper:
add r0, sp, #S_OFF
b sys_fork
ENDPROC(sys_fork_wrapper)
sys_vfork_wrapper:
add r0, sp, #S_OFF
b sys_vfork
ENDPROC(sys_vfork_wrapper)
sys_execve_wrapper:
add r3, sp, #S_OFF
b sys_execve
ENDPROC(sys_execve_wrapper)
sys_clone_wrapper:
add ip, sp, #S_OFF
str ip, [sp, #4]
b sys_clone
ENDPROC(sys_clone_wrapper)
sys_sigsuspend_wrapper:
add r3, sp, #S_OFF
b sys_sigsuspend
ENDPROC(sys_sigsuspend_wrapper)
sys_rt_sigsuspend_wrapper:
add r2, sp, #S_OFF
b sys_rt_sigsuspend
ENDPROC(sys_rt_sigsuspend_wrapper)
sys_sigreturn_wrapper:
add r0, sp, #S_OFF
b sys_sigreturn
ENDPROC(sys_sigreturn_wrapper)
sys_rt_sigreturn_wrapper:
add r0, sp, #S_OFF
b sys_rt_sigreturn
ENDPROC(sys_rt_sigreturn_wrapper)
sys_sigaltstack_wrapper:
ldr r2, [sp, #S_OFF + S_SP]
b do_sigaltstack
ENDPROC(sys_sigaltstack_wrapper)
sys_statfs64_wrapper:
teq r1, #88
moveq r1, #84
b sys_statfs64
ENDPROC(sys_statfs64_wrapper)
sys_fstatfs64_wrapper:
teq r1, #88
moveq r1, #84
b sys_fstatfs64
ENDPROC(sys_fstatfs64_wrapper)
/*
* Note: off_4k (r5) is always units of 4K. If we can't do the requested
@ -402,11 +415,14 @@ sys_mmap2:
str r5, [sp, #4]
b do_mmap2
#endif
ENDPROC(sys_mmap2)
ENTRY(pabort_ifar)
mrc p15, 0, r0, cr6, cr0, 2
ENTRY(pabort_noifar)
mov pc, lr
ENDPROC(pabort_ifar)
ENDPROC(pabort_noifar)
#ifdef CONFIG_OABI_COMPAT
@ -417,26 +433,31 @@ ENTRY(pabort_noifar)
sys_oabi_pread64:
stmia sp, {r3, r4}
b sys_pread64
ENDPROC(sys_oabi_pread64)
sys_oabi_pwrite64:
stmia sp, {r3, r4}
b sys_pwrite64
ENDPROC(sys_oabi_pwrite64)
sys_oabi_truncate64:
mov r3, r2
mov r2, r1
b sys_truncate64
ENDPROC(sys_oabi_truncate64)
sys_oabi_ftruncate64:
mov r3, r2
mov r2, r1
b sys_ftruncate64
ENDPROC(sys_oabi_ftruncate64)
sys_oabi_readahead:
str r3, [sp]
mov r3, r2
mov r2, r1
b sys_readahead
ENDPROC(sys_oabi_readahead)
/*
* Let's declare a second syscall table for old ABI binaries

1
arch/arm/kernel/fiq.c
View file

@ -45,7 +45,6 @@
#include <asm/fiq.h>
#include <asm/irq.h>
#include <asm/system.h>
#include <asm/uaccess.h>
static unsigned long no_fiq_insn;

19
arch/arm/kernel/head-common.S
View file

@ -36,7 +36,6 @@ __switch_data:
* r2 = atags pointer
* r9 = processor ID
*/
.type __mmap_switched, %function
__mmap_switched:
adr r3, __switch_data + 4
@ -59,6 +58,7 @@ __mmap_switched:
bic r4, r0, #CR_A @ Clear 'A' bit
stmia r7, {r0, r4} @ Save control register values
b start_kernel
ENDPROC(__mmap_switched)
/*
* Exception handling. Something went wrong and we can't proceed. We
@ -69,8 +69,6 @@ __mmap_switched:
* and hope for the best (useful if bootloader fails to pass a proper
* machine ID for example).
*/
.type __error_p, %function
__error_p:
#ifdef CONFIG_DEBUG_LL
adr r0, str_p1
@ -84,8 +82,8 @@ str_p1: .asciz "\nError: unrecognized/unsupported processor variant (0x"
str_p2: .asciz ").\n"
.align
#endif
ENDPROC(__error_p)
.type __error_a, %function
__error_a:
#ifdef CONFIG_DEBUG_LL
mov r4, r1 @ preserve machine ID
@ -115,13 +113,14 @@ __error_a:
adr r0, str_a3
bl printascii
b __error
ENDPROC(__error_a)
str_a1: .asciz "\nError: unrecognized/unsupported machine ID (r1 = 0x"
str_a2: .asciz ").\n\nAvailable machine support:\n\nID (hex)\tNAME\n"
str_a3: .asciz "\nPlease check your kernel config and/or bootloader.\n"
.align
#endif
.type __error, %function
__error:
#ifdef CONFIG_ARCH_RPC
/*
@ -138,6 +137,7 @@ __error:
#endif
1: mov r0, r0
b 1b
ENDPROC(__error)
/*
@ -153,7 +153,6 @@ __error:
* r5 = proc_info pointer in physical address space
* r9 = cpuid (preserved)
*/
.type __lookup_processor_type, %function
__lookup_processor_type:
adr r3, 3f
ldmda r3, {r5 - r7}
@ -169,6 +168,7 @@ __lookup_processor_type:
blo 1b
mov r5, #0 @ unknown processor
2: mov pc, lr
ENDPROC(__lookup_processor_type)
/*
* This provides a C-API version of the above function.
@ -179,6 +179,7 @@ ENTRY(lookup_processor_type)
bl __lookup_processor_type
mov r0, r5
ldmfd sp!, {r4 - r7, r9, pc}
ENDPROC(lookup_processor_type)
/*
* Look in <asm/procinfo.h> and arch/arm/kernel/arch.[ch] for
@ -201,7 +202,6 @@ ENTRY(lookup_processor_type)
* r3, r4, r6 corrupted
* r5 = mach_info pointer in physical address space
*/
.type __lookup_machine_type, %function
__lookup_machine_type:
adr r3, 3b
ldmia r3, {r4, r5, r6}
@ -216,6 +216,7 @@ __lookup_machine_type:
blo 1b
mov r5, #0 @ unknown machine
2: mov pc, lr
ENDPROC(__lookup_machine_type)
/*
* This provides a C-API version of the above function.
@ -226,6 +227,7 @@ ENTRY(lookup_machine_type)
bl __lookup_machine_type
mov r0, r5
ldmfd sp!, {r4 - r6, pc}
ENDPROC(lookup_machine_type)
/* Determine validity of the r2 atags pointer. The heuristic requires
* that the pointer be aligned, in the first 16k of physical RAM and
@ -239,8 +241,6 @@ ENTRY(lookup_machine_type)
* r2 either valid atags pointer, or zero
* r5, r6 corrupted
*/
.type __vet_atags, %function
__vet_atags:
tst r2, #0x3 @ aligned?
bne 1f
@ -257,3 +257,4 @@ __vet_atags:
1: mov r2, #0
mov pc, lr
ENDPROC(__vet_atags)

4
arch/arm/kernel/head-nommu.S
View file

@ -33,7 +33,6 @@
*
*/
.section ".text.head", "ax"
.type stext, %function
ENTRY(stext)
msr cpsr_c, #PSR_F_BIT | PSR_I_BIT | SVC_MODE @ ensure svc mode
@ and irqs disabled
@ -53,11 +52,11 @@ ENTRY(stext)
@ the initialization is done
adr lr, __after_proc_init @ return (PIC) address
add pc, r10, #PROCINFO_INITFUNC
ENDPROC(stext)
/*
* Set the Control Register and Read the process ID.
*/
.type __after_proc_init, %function
__after_proc_init:
#ifdef CONFIG_CPU_CP15
mrc p15, 0, r0, c1, c0, 0 @ read control reg
@ -85,6 +84,7 @@ __after_proc_init:
mov pc, r13 @ clear the BSS and jump
@ to start_kernel
ENDPROC(__after_proc_init)
.ltorg
#include "head-common.S"

12
arch/arm/kernel/head.S
View file

@ -75,7 +75,6 @@
* circumstances, zImage) is for.
*/
.section ".text.head", "ax"
.type stext, %function
ENTRY(stext)
msr cpsr_c, #PSR_F_BIT | PSR_I_BIT | SVC_MODE @ ensure svc mode
@ and irqs disabled
@ -100,9 +99,9 @@ ENTRY(stext)
@ mmu has been enabled
adr lr, __enable_mmu @ return (PIC) address
add pc, r10, #PROCINFO_INITFUNC
ENDPROC(stext)
#if defined(CONFIG_SMP)
.type secondary_startup, #function
ENTRY(secondary_startup)
/*
* Common entry point for secondary CPUs.
@ -128,6 +127,7 @@ ENTRY(secondary_startup)
adr lr, __enable_mmu @ return address
add pc, r10, #PROCINFO_INITFUNC @ initialise processor
@ (return control reg)
ENDPROC(secondary_startup)
/*
* r6 = &secondary_data
@ -136,6 +136,7 @@ ENTRY(__secondary_switched)
ldr sp, [r7, #4] @ get secondary_data.stack
mov fp, #0
b secondary_start_kernel
ENDPROC(__secondary_switched)
.type __secondary_data, %object
__secondary_data:
@ -151,7 +152,6 @@ __secondary_data:
* this is just loading the page table pointer and domain access
* registers.
*/
.type __enable_mmu, %function
__enable_mmu:
#ifdef CONFIG_ALIGNMENT_TRAP
orr r0, r0, #CR_A
@ -174,6 +174,7 @@ __enable_mmu:
mcr p15, 0, r5, c3, c0, 0 @ load domain access register
mcr p15, 0, r4, c2, c0, 0 @ load page table pointer
b __turn_mmu_on
ENDPROC(__enable_mmu)
/*
* Enable the MMU. This completely changes the structure of the visible
@ -187,7 +188,6 @@ __enable_mmu:
* other registers depend on the function called upon completion
*/
.align 5
.type __turn_mmu_on, %function
__turn_mmu_on:
mov r0, r0
mcr p15, 0, r0, c1, c0, 0 @ write control reg
@ -195,7 +195,7 @@ __turn_mmu_on:
mov r3, r3
mov r3, r3
mov pc, r13
ENDPROC(__turn_mmu_on)
/*
@ -211,7 +211,6 @@ __turn_mmu_on:
* r0, r3, r6, r7 corrupted
* r4 = physical page table address
*/
.type __create_page_tables, %function
__create_page_tables:
pgtbl r4 @ page table address
@ -325,6 +324,7 @@ __create_page_tables:
#endif
#endif
mov pc, lr
ENDPROC(__create_page_tables)
.ltorg
#include "head-common.S"

2
arch/arm/kernel/init_task.c
View file

@ -8,8 +8,8 @@
#include <linux/init.h>
#include <linux/init_task.h>
#include <linux/mqueue.h>
#include <linux/uaccess.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
static struct fs_struct init_fs = INIT_FS;

3
arch/arm/kernel/io.c
View file

@ -1,7 +1,6 @@
#include <linux/module.h>
#include <linux/types.h>
#include <asm/io.h>
#include <linux/io.h>
/*
* Copy data from IO memory space to "real" memory space.

4
arch/arm/kernel/kprobes-decode.c
View file

@ -488,7 +488,7 @@ static void __kprobes simulate_ldm1stm1(struct kprobe *p, struct pt_regs *regs)
if (!ubit)
addr -= reg_count;
addr += (!pbit ^ !ubit);
addr += (!pbit == !ubit);
reg_bit_vector = insn & 0xffff;
while (reg_bit_vector) {
@ -503,7 +503,7 @@ static void __kprobes simulate_ldm1stm1(struct kprobe *p, struct pt_regs *regs)
if (wbit) {
if (!ubit)
addr -= reg_count;
addr -= (!pbit ^ !ubit);
addr -= (!pbit == !ubit);
regs->uregs[rn] = (long)addr;
}
}

5
arch/arm/kernel/kprobes.c
View file

@ -200,9 +200,12 @@ void __kprobes kprobe_handler(struct pt_regs *regs)
}
}
int kprobe_trap_handler(struct pt_regs *regs, unsigned int instr)
static int __kprobes kprobe_trap_handler(struct pt_regs *regs, unsigned int instr)
{
unsigned long flags;
local_irq_save(flags);
kprobe_handler(regs);
local_irq_restore(flags);
return 0;
}

2
arch/arm/kernel/machine_kexec.c
View file

@ -6,10 +6,10 @@
#include <linux/kexec.h>
#include <linux/delay.h>
#include <linux/reboot.h>
#include <linux/io.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/mmu_context.h>
#include <asm/io.h>
#include <asm/cacheflush.h>
#include <asm/mach-types.h>

33
arch/arm/kernel/process.c
View file

@ -28,12 +28,12 @@
#include <linux/pm.h>
#include <linux/tick.h>
#include <linux/utsname.h>
#include <linux/uaccess.h>
#include <asm/leds.h>
#include <asm/processor.h>
#include <asm/system.h>
#include <asm/thread_notify.h>
#include <asm/uaccess.h>
#include <asm/mach/time.h>
static const char *processor_modes[] = {
@ -267,35 +267,6 @@ void show_regs(struct pt_regs * regs)
__backtrace();
}
void show_fpregs(struct user_fp *regs)
{
int i;
for (i = 0; i < 8; i++) {
unsigned long *p;
char type;
p = (unsigned long *)(regs->fpregs + i);
switch (regs->ftype[i]) {
case 1: type = 'f'; break;
case 2: type = 'd'; break;
case 3: type = 'e'; break;
default: type = '?'; break;
}
if (regs->init_flag)
type = '?';
printk(" f%d(%c): %08lx %08lx %08lx%c",
i, type, p[0], p[1], p[2], i & 1 ? '\n' : ' ');
}
printk("FPSR: %08lx FPCR: %08lx\n",
(unsigned long)regs->fpsr,
(unsigned long)regs->fpcr);
}
/*
* Free current thread data structures etc..
*/
@ -414,7 +385,7 @@ unsigned long get_wchan(struct task_struct *p)
do {
if (fp < stack_start || fp > stack_end)
return 0;
lr = pc_pointer (((unsigned long *)fp)[-1]);
lr = ((unsigned long *)fp)[-1];
if (!in_sched_functions(lr))
return lr;
fp = *(unsigned long *) (fp - 12);

10
arch/arm/kernel/ptrace.c
View file

@ -18,8 +18,8 @@
#include <linux/security.h>
#include <linux/init.h>
#include <linux/signal.h>
#include <linux/uaccess.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
#include <asm/system.h>
#include <asm/traps.h>
@ -126,7 +126,7 @@ ptrace_getrn(struct task_struct *child, unsigned long insn)
val = get_user_reg(child, reg);
if (reg == 15)
val = pc_pointer(val + 8);
val += 8;
return val;
}
@ -278,8 +278,7 @@ get_branch_address(struct task_struct *child, unsigned long pc, unsigned long in
else
base -= aluop2;
}
if (read_u32(child, base, &alt) == 0)
alt = pc_pointer(alt);
read_u32(child, base, &alt);
}
break;
@ -305,8 +304,7 @@ get_branch_address(struct task_struct *child, unsigned long pc, unsigned long in
base = ptrace_getrn(child, insn);
if (read_u32(child, base + nr_regs, &alt) == 0)
alt = pc_pointer(alt);
read_u32(child, base + nr_regs, &alt);
break;
}
break;

279
arch/arm/kernel/setup.c
View file

@ -26,11 +26,13 @@
#include <linux/fs.h>
#include <asm/cpu.h>
#include <asm/cputype.h>
#include <asm/elf.h>
#include <asm/procinfo.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/cacheflush.h>
#include <asm/cachetype.h>
#include <asm/tlbflush.h>
#include <asm/mach/arch.h>
@ -59,13 +61,14 @@ __setup("fpe=", fpe_setup);
extern void paging_init(struct meminfo *, struct machine_desc *desc);
extern void reboot_setup(char *str);
extern int root_mountflags;
extern void _stext, _text, _etext, __data_start, _edata, _end;
extern void _text, _etext, __data_start, _edata, _end;
unsigned int processor_id;
EXPORT_SYMBOL(processor_id);
unsigned int __machine_arch_type;
EXPORT_SYMBOL(__machine_arch_type);
unsigned int cacheid;
EXPORT_SYMBOL(cacheid);
unsigned int __atags_pointer __initdata;
@ -81,8 +84,6 @@ EXPORT_SYMBOL(system_serial_high);
unsigned int elf_hwcap;
EXPORT_SYMBOL(elf_hwcap);
unsigned long __initdata vmalloc_reserve = 128 << 20;
#ifdef MULTI_CPU
struct processor processor;
@ -111,9 +112,6 @@ static struct stack stacks[NR_CPUS];
char elf_platform[ELF_PLATFORM_SIZE];
EXPORT_SYMBOL(elf_platform);
unsigned long phys_initrd_start __initdata = 0;
unsigned long phys_initrd_size __initdata = 0;
static struct meminfo meminfo __initdata = { 0, };
static const char *cpu_name;
static const char *machine_name;
@ -178,63 +176,6 @@ static struct resource io_res[] = {
#define lp1 io_res[1]
#define lp2 io_res[2]
static const char *cache_types[16] = {
"write-through",
"write-back",
"write-back",
"undefined 3",
"undefined 4",
"undefined 5",
"write-back",
"write-back",
"undefined 8",
"undefined 9",
"undefined 10",
"undefined 11",
"undefined 12",
"undefined 13",
"write-back",
"undefined 15",
};
static const char *cache_clean[16] = {
"not required",
"read-block",
"cp15 c7 ops",
"undefined 3",
"undefined 4",
"undefined 5",
"cp15 c7 ops",
"cp15 c7 ops",
"undefined 8",
"undefined 9",
"undefined 10",
"undefined 11",
"undefined 12",
"undefined 13",
"cp15 c7 ops",
"undefined 15",
};
static const char *cache_lockdown[16] = {
"not supported",
"not supported",
"not supported",
"undefined 3",
"undefined 4",
"undefined 5",
"format A",
"format B",
"undefined 8",
"undefined 9",
"undefined 10",
"undefined 11",
"undefined 12",
"undefined 13",
"format C",
"undefined 15",
};
static const char *proc_arch[] = {
"undefined/unknown",
"3",
@ -255,61 +196,19 @@ static const char *proc_arch[] = {
"?(17)",
};
#define CACHE_TYPE(x) (((x) >> 25) & 15)
#define CACHE_S(x) ((x) & (1 << 24))
#define CACHE_DSIZE(x) (((x) >> 12) & 4095) /* only if S=1 */
#define CACHE_ISIZE(x) ((x) & 4095)
#define CACHE_SIZE(y) (((y) >> 6) & 7)
#define CACHE_ASSOC(y) (((y) >> 3) & 7)
#define CACHE_M(y) ((y) & (1 << 2))
#define CACHE_LINE(y) ((y) & 3)
static inline void dump_cache(const char *prefix, int cpu, unsigned int cache)
{
unsigned int mult = 2 + (CACHE_M(cache) ? 1 : 0);
printk("CPU%u: %s: %d bytes, associativity %d, %d byte lines, %d sets\n",
cpu, prefix,
mult << (8 + CACHE_SIZE(cache)),
(mult << CACHE_ASSOC(cache)) >> 1,
8 << CACHE_LINE(cache),
1 << (6 + CACHE_SIZE(cache) - CACHE_ASSOC(cache) -
CACHE_LINE(cache)));
}
static void __init dump_cpu_info(int cpu)
{
unsigned int info = read_cpuid(CPUID_CACHETYPE);
if (info != processor_id) {
printk("CPU%u: D %s %s cache\n", cpu, cache_is_vivt() ? "VIVT" : "VIPT",
cache_types[CACHE_TYPE(info)]);
if (CACHE_S(info)) {
dump_cache("I cache", cpu, CACHE_ISIZE(info));
dump_cache("D cache", cpu, CACHE_DSIZE(info));
} else {
dump_cache("cache", cpu, CACHE_ISIZE(info));
}
}
if (arch_is_coherent())
printk("Cache coherency enabled\n");
}
int cpu_architecture(void)
{
int cpu_arch;
if ((processor_id & 0x0008f000) == 0) {
if ((read_cpuid_id() & 0x0008f000) == 0) {
cpu_arch = CPU_ARCH_UNKNOWN;
} else if ((processor_id & 0x0008f000) == 0x00007000) {
cpu_arch = (processor_id & (1 << 23)) ? CPU_ARCH_ARMv4T : CPU_ARCH_ARMv3;
} else if ((processor_id & 0x00080000) == 0x00000000) {
cpu_arch = (processor_id >> 16) & 7;
} else if ((read_cpuid_id() & 0x0008f000) == 0x00007000) {
cpu_arch = (read_cpuid_id() & (1 << 23)) ? CPU_ARCH_ARMv4T : CPU_ARCH_ARMv3;
} else if ((read_cpuid_id() & 0x00080000) == 0x00000000) {
cpu_arch = (read_cpuid_id() >> 16) & 7;
if (cpu_arch)
cpu_arch += CPU_ARCH_ARMv3;
} else if ((processor_id & 0x000f0000) == 0x000f0000) {
} else if ((read_cpuid_id() & 0x000f0000) == 0x000f0000) {
unsigned int mmfr0;
/* Revised CPUID format. Read the Memory Model Feature
@ -330,6 +229,34 @@ int cpu_architecture(void)
return cpu_arch;
}
static void __init cacheid_init(void)
{
unsigned int cachetype = read_cpuid_cachetype();
unsigned int arch = cpu_architecture();
if (arch >= CPU_ARCH_ARMv7) {
cacheid = CACHEID_VIPT_NONALIASING;
if ((cachetype & (3 << 14)) == 1 << 14)
cacheid |= CACHEID_ASID_TAGGED;
} else if (arch >= CPU_ARCH_ARMv6) {
if (cachetype & (1 << 23))
cacheid = CACHEID_VIPT_ALIASING;
else
cacheid = CACHEID_VIPT_NONALIASING;
} else {
cacheid = CACHEID_VIVT;
}
printk("CPU: %s data cache, %s instruction cache\n",
cache_is_vivt() ? "VIVT" :
cache_is_vipt_aliasing() ? "VIPT aliasing" :
cache_is_vipt_nonaliasing() ? "VIPT nonaliasing" : "unknown",
cache_is_vivt() ? "VIVT" :
icache_is_vivt_asid_tagged() ? "VIVT ASID tagged" :
cache_is_vipt_aliasing() ? "VIPT aliasing" :
cache_is_vipt_nonaliasing() ? "VIPT nonaliasing" : "unknown");
}
/*
* These functions re-use the assembly code in head.S, which
* already provide the required functionality.
@ -346,10 +273,10 @@ static void __init setup_processor(void)
* types. The linker builds this table for us from the
* entries in arch/arm/mm/proc-*.S
*/
list = lookup_processor_type(processor_id);
list = lookup_processor_type(read_cpuid_id());
if (!list) {
printk("CPU configuration botched (ID %08x), unable "
"to continue.\n", processor_id);
"to continue.\n", read_cpuid_id());
while (1);
}
@ -369,7 +296,7 @@ static void __init setup_processor(void)
#endif
printk("CPU: %s [%08x] revision %d (ARMv%s), cr=%08lx\n",
cpu_name, processor_id, (int)processor_id & 15,
cpu_name, read_cpuid_id(), read_cpuid_id() & 15,
proc_arch[cpu_architecture()], cr_alignment);
sprintf(init_utsname()->machine, "%s%c", list->arch_name, ENDIANNESS);
@ -379,14 +306,14 @@ static void __init setup_processor(void)
elf_hwcap &= ~HWCAP_THUMB;
#endif
cacheid_init();
cpu_proc_init();
}
/*
* cpu_init - initialise one CPU.
*
* cpu_init dumps the cache information, initialises SMP specific
* information, and sets up the per-CPU stacks.
* cpu_init sets up the per-CPU stacks.
*/
void cpu_init(void)
{
@ -398,9 +325,6 @@ void cpu_init(void)
BUG();
}
if (system_state == SYSTEM_BOOTING)
dump_cpu_info(cpu);
/*
* setup stacks for re-entrant exception handlers
*/
@ -443,20 +367,6 @@ static struct machine_desc * __init setup_machine(unsigned int nr)
return list;
}
static void __init early_initrd(char **p)
{
unsigned long start, size;
start = memparse(*p, p);
if (**p == ',') {
size = memparse((*p) + 1, p);
phys_initrd_start = start;
phys_initrd_size = size;
}
}
__early_param("initrd=", early_initrd);
static void __init arm_add_memory(unsigned long start, unsigned long size)
{
struct membank *bank;
@ -502,17 +412,6 @@ static void __init early_mem(char **p)
}
__early_param("mem=", early_mem);
/*
* vmalloc=size forces the vmalloc area to be exactly 'size'
* bytes. This can be used to increase (or decrease) the vmalloc
* area - the default is 128m.
*/
static void __init early_vmalloc(char **arg)
{
vmalloc_reserve = memparse(*arg, arg);
}
__early_param("vmalloc=", early_vmalloc);
/*
* Initial parsing of the command line.
*/
@ -527,12 +426,12 @@ static void __init parse_cmdline(char **cmdline_p, char *from)
struct early_params *p;
for (p = &__early_begin; p < &__early_end; p++) {
int len = strlen(p->arg);
int arglen = strlen(p->arg);
if (memcmp(from, p->arg, len) == 0) {
if (memcmp(from, p->arg, arglen) == 0) {
if (to != command_line)
to -= 1;
from += len;
from += arglen;
p->fn(&from);
while (*from != ' ' && *from != '\0')
@ -579,18 +478,13 @@ request_standard_resources(struct meminfo *mi, struct machine_desc *mdesc)
kernel_data.end = virt_to_phys(&_end - 1);
for (i = 0; i < mi->nr_banks; i++) {
unsigned long virt_start, virt_end;
if (mi->bank[i].size == 0)
continue;
virt_start = __phys_to_virt(mi->bank[i].start);
virt_end = virt_start + mi->bank[i].size - 1;
res = alloc_bootmem_low(sizeof(*res));
res->name = "System RAM";
res->start = __virt_to_phys(virt_start);
res->end = __virt_to_phys(virt_end);
res->start = mi->bank[i].start;
res->end = mi->bank[i].start + mi->bank[i].size - 1;
res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
request_resource(&iomem_resource, res);
@ -694,26 +588,6 @@ static int __init parse_tag_ramdisk(const struct tag *tag)
__tagtable(ATAG_RAMDISK, parse_tag_ramdisk);
static int __init parse_tag_initrd(const struct tag *tag)
{
printk(KERN_WARNING "ATAG_INITRD is deprecated; "
"please update your bootloader.\n");
phys_initrd_start = __virt_to_phys(tag->u.initrd.start);
phys_initrd_size = tag->u.initrd.size;
return 0;
}
__tagtable(ATAG_INITRD, parse_tag_initrd);
static int __init parse_tag_initrd2(const struct tag *tag)
{
phys_initrd_start = tag->u.initrd.start;
phys_initrd_size = tag->u.initrd.size;
return 0;
}
__tagtable(ATAG_INITRD2, parse_tag_initrd2);
static int __init parse_tag_serialnr(const struct tag *tag)
{
system_serial_low = tag->u.serialnr.low;
@ -901,28 +775,12 @@ static const char *hwcap_str[] = {
NULL
};
static void
c_show_cache(struct seq_file *m, const char *type, unsigned int cache)
{
unsigned int mult = 2 + (CACHE_M(cache) ? 1 : 0);
seq_printf(m, "%s size\t\t: %d\n"
"%s assoc\t\t: %d\n"
"%s line length\t: %d\n"
"%s sets\t\t: %d\n",
type, mult << (8 + CACHE_SIZE(cache)),
type, (mult << CACHE_ASSOC(cache)) >> 1,
type, 8 << CACHE_LINE(cache),
type, 1 << (6 + CACHE_SIZE(cache) - CACHE_ASSOC(cache) -
CACHE_LINE(cache)));
}
static int c_show(struct seq_file *m, void *v)
{
int i;
seq_printf(m, "Processor\t: %s rev %d (%s)\n",
cpu_name, (int)processor_id & 15, elf_platform);
cpu_name, read_cpuid_id() & 15, elf_platform);
#if defined(CONFIG_SMP)
for_each_online_cpu(i) {
@ -949,47 +807,26 @@ static int c_show(struct seq_file *m, void *v)
if (elf_hwcap & (1 << i))
seq_printf(m, "%s ", hwcap_str[i]);
seq_printf(m, "\nCPU implementer\t: 0x%02x\n", processor_id >> 24);
seq_printf(m, "\nCPU implementer\t: 0x%02x\n", read_cpuid_id() >> 24);
seq_printf(m, "CPU architecture: %s\n", proc_arch[cpu_architecture()]);
if ((processor_id & 0x0008f000) == 0x00000000) {
if ((read_cpuid_id() & 0x0008f000) == 0x00000000) {
/* pre-ARM7 */
seq_printf(m, "CPU part\t: %07x\n", processor_id >> 4);
seq_printf(m, "CPU part\t: %07x\n", read_cpuid_id() >> 4);
} else {
if ((processor_id & 0x0008f000) == 0x00007000) {
if ((read_cpuid_id() & 0x0008f000) == 0x00007000) {
/* ARM7 */
seq_printf(m, "CPU variant\t: 0x%02x\n",
(processor_id >> 16) & 127);
(read_cpuid_id() >> 16) & 127);
} else {
/* post-ARM7 */
seq_printf(m, "CPU variant\t: 0x%x\n",
(processor_id >> 20) & 15);
(read_cpuid_id() >> 20) & 15);
}
seq_printf(m, "CPU part\t: 0x%03x\n",
(processor_id >> 4) & 0xfff);
}
seq_printf(m, "CPU revision\t: %d\n", processor_id & 15);
{
unsigned int cache_info = read_cpuid(CPUID_CACHETYPE);
if (cache_info != processor_id) {
seq_printf(m, "Cache type\t: %s\n"
"Cache clean\t: %s\n"
"Cache lockdown\t: %s\n"
"Cache format\t: %s\n",
cache_types[CACHE_TYPE(cache_info)],
cache_clean[CACHE_TYPE(cache_info)],
cache_lockdown[CACHE_TYPE(cache_info)],
CACHE_S(cache_info) ? "Harvard" : "Unified");
if (CACHE_S(cache_info)) {
c_show_cache(m, "I", CACHE_ISIZE(cache_info));
c_show_cache(m, "D", CACHE_DSIZE(cache_info));
} else {
c_show_cache(m, "Cache", CACHE_ISIZE(cache_info));
}
}
(read_cpuid_id() >> 4) & 0xfff);
}
seq_printf(m, "CPU revision\t: %d\n", read_cpuid_id() & 15);
seq_puts(m, "\n");

2
arch/arm/kernel/signal.c
View file

@ -11,11 +11,11 @@
#include <linux/signal.h>
#include <linux/personality.h>
#include <linux/freezer.h>
#include <linux/uaccess.h>
#include <asm/elf.h>
#include <asm/cacheflush.h>
#include <asm/ucontext.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
#include "ptrace.h"

3
arch/arm/kernel/sys_arm.c
View file

@ -27,8 +27,7 @@
#include <linux/file.h>
#include <linux/utsname.h>
#include <linux/ipc.h>
#include <asm/uaccess.h>
#include <linux/uaccess.h>
extern unsigned long do_mremap(unsigned long addr, unsigned long old_len,
unsigned long new_len, unsigned long flags,

2
arch/arm/kernel/sys_oabi-compat.c
View file

@ -82,7 +82,7 @@
#include <linux/socket.h>
#include <linux/net.h>
#include <linux/ipc.h>
#include <asm/uaccess.h>
#include <linux/uaccess.h>
struct oldabi_stat64 {
unsigned long long st_dev;

2
arch/arm/kernel/time.c
View file

@ -59,7 +59,7 @@ unsigned long profile_pc(struct pt_regs *regs)
if (in_lock_functions(pc)) {
fp = regs->ARM_fp;
pc = pc_pointer(((unsigned long *)fp)[-1]);
pc = ((unsigned long *)fp)[-1];
}
return pc;

18
arch/arm/kernel/traps.c
View file

@ -19,15 +19,13 @@
#include <linux/kallsyms.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/kprobes.h>
#include <linux/uaccess.h>
#include <asm/atomic.h>
#include <asm/cacheflush.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
#include <asm/traps.h>
#include <asm/io.h>
#include "ptrace.h"
#include "signal.h"
@ -69,7 +67,8 @@ void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long
*/
static int verify_stack(unsigned long sp)
{
if (sp < PAGE_OFFSET || (sp > (unsigned long)high_memory && high_memory != 0))
if (sp < PAGE_OFFSET ||
(sp > (unsigned long)high_memory && high_memory != NULL))
return -EFAULT;
return 0;
@ -328,17 +327,6 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs)
get_user(instr, (u32 __user *)pc);
}
#ifdef CONFIG_KPROBES
/*
* It is possible to have recursive kprobes, so we can't call
* the kprobe trap handler with the undef_lock held.
*/
if (instr == KPROBE_BREAKPOINT_INSTRUCTION && !user_mode(regs)) {
kprobe_trap_handler(regs, instr);
return;
}
#endif
if (call_undef_hook(regs, instr) == 0)
return;

2
arch/arm/kernel/xscale-cp0.c
View file

@ -14,8 +14,8 @@
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/init.h>
#include <linux/io.h>
#include <asm/thread_notify.h>
#include <asm/io.h>
static inline void dsp_save_state(u32 *state)
{

2
arch/arm/lib/ashldi3.S
View file

@ -47,3 +47,5 @@ ENTRY(__aeabi_llsl)
mov al, al, lsl r2
mov pc, lr
ENDPROC(__ashldi3)
ENDPROC(__aeabi_llsl)

2
arch/arm/lib/ashrdi3.S
View file

@ -47,3 +47,5 @@ ENTRY(__aeabi_lasr)
mov ah, ah, asr r2
mov pc, lr
ENDPROC(__ashrdi3)
ENDPROC(__aeabi_lasr)

4
arch/arm/lib/backtrace.S
View file

@ -30,6 +30,8 @@ ENTRY(c_backtrace)
#if !defined(CONFIG_FRAME_POINTER) || !defined(CONFIG_PRINTK)
mov pc, lr
ENDPROC(__backtrace)
ENDPROC(c_backtrace)
#else
stmfd sp!, {r4 - r8, lr} @ Save an extra register so we have a location...
movs frame, r0 @ if frame pointer is zero
@ -103,6 +105,8 @@ for_each_frame: tst frame, mask @ Check for address exceptions
mov r1, frame
bl printk
no_frame: ldmfd sp!, {r4 - r8, pc}
ENDPROC(__backtrace)
ENDPROC(c_backtrace)
.section __ex_table,"a"
.align 3

2
arch/arm/lib/changebit.S
View file

@ -19,3 +19,5 @@ ENTRY(_change_bit_be)
eor r0, r0, #0x18 @ big endian byte ordering
ENTRY(_change_bit_le)
bitop eor
ENDPROC(_change_bit_be)
ENDPROC(_change_bit_le)

3
arch/arm/lib/clear_user.S
View file

@ -41,9 +41,10 @@ USER( strplt r2, [r0], #4)
USER( strnebt r2, [r0], #1)
USER( strnebt r2, [r0], #1)
tst r1, #1 @ x1 x0 x1 x0 x1 x0 x1
USER( strnebt r2, [r0], #1)
USER( strnebt r2, [r0])
mov r0, #0
ldmfd sp!, {r1, pc}
ENDPROC(__clear_user)
.section .fixup,"ax"
.align 0

2
arch/arm/lib/clearbit.S
View file

@ -20,3 +20,5 @@ ENTRY(_clear_bit_be)
eor r0, r0, #0x18 @ big endian byte ordering
ENTRY(_clear_bit_le)
bitop bic
ENDPROC(_clear_bit_be)
ENDPROC(_clear_bit_le)

2
arch/arm/lib/copy_from_user.S
View file

@ -87,6 +87,8 @@ ENTRY(__copy_from_user)
#include "copy_template.S"
ENDPROC(__copy_from_user)
.section .fixup,"ax"
.align 0
copy_abort_preamble

1
arch/arm/lib/copy_page.S
View file

@ -44,3 +44,4 @@ ENTRY(copy_page)
PLD( ldmeqia r1!, {r3, r4, ip, lr} )
PLD( beq 2b )
ldmfd sp!, {r4, pc} @ 3
ENDPROC(copy_page)

2
arch/arm/lib/copy_to_user.S
View file

@ -90,6 +90,8 @@ ENTRY(__copy_to_user)
#include "copy_template.S"
ENDPROC(__copy_to_user)
.section .fixup,"ax"
.align 0
copy_abort_preamble

1
arch/arm/lib/csumipv6.S
View file

@ -29,4 +29,5 @@ ENTRY(__csum_ipv6_magic)
adcs r0, r0, r2
adcs r0, r0, #0
ldmfd sp!, {pc}
ENDPROC(__csum_ipv6_magic)

1
arch/arm/lib/csumpartial.S
View file

@ -139,3 +139,4 @@ ENTRY(csum_partial)
tst len, #0x1c
bne 4b
b .Lless4
ENDPROC(csum_partial)

7
arch/arm/lib/csumpartialcopy.S
View file

@ -18,13 +18,11 @@
*/
.macro save_regs
mov ip, sp
stmfd sp!, {r1, r4 - r8, fp, ip, lr, pc}
sub fp, ip, #4
stmfd sp!, {r1, r4 - r8, lr}
.endm
.macro load_regs
ldmfd sp, {r1, r4 - r8, fp, sp, pc}
ldmfd sp!, {r1, r4 - r8, pc}
.endm
.macro load1b, reg1
@ -50,5 +48,6 @@
.endm
#define FN_ENTRY ENTRY(csum_partial_copy_nocheck)
#define FN_EXIT ENDPROC(csum_partial_copy_nocheck)
#include "csumpartialcopygeneric.S"

1
arch/arm/lib/csumpartialcopygeneric.S
View file

@ -329,3 +329,4 @@ FN_ENTRY
adcs sum, sum, r4, push #24
mov r5, r4, get_byte_1
b .Lexit
FN_EXIT

7
arch/arm/lib/csumpartialcopyuser.S
View file

@ -18,13 +18,11 @@
.text
.macro save_regs
mov ip, sp
stmfd sp!, {r1 - r2, r4 - r8, fp, ip, lr, pc}
sub fp, ip, #4
stmfd sp!, {r1, r2, r4 - r8, lr}
.endm
.macro load_regs
ldmfd sp, {r1, r2, r4-r8, fp, sp, pc}
ldmfd sp!, {r1, r2, r4 - r8, pc}
.endm
.macro load1b, reg1
@ -82,6 +80,7 @@
*/
#define FN_ENTRY ENTRY(csum_partial_copy_from_user)
#define FN_EXIT ENDPROC(csum_partial_copy_from_user)
#include "csumpartialcopygeneric.S"

3
arch/arm/lib/delay.S
View file

@ -60,3 +60,6 @@ ENTRY(__delay)
#endif
bhi __delay
mov pc, lr
ENDPROC(__udelay)
ENDPROC(__const_udelay)
ENDPROC(__delay)

1
arch/arm/lib/div64.S
View file

@ -198,3 +198,4 @@ ENTRY(__do_div64)
mov xh, #0
ldr pc, [sp], #8
ENDPROC(__do_div64)

8
arch/arm/lib/findbit.S
View file

@ -33,6 +33,7 @@ ENTRY(_find_first_zero_bit_le)
blo 1b
3: mov r0, r1 @ no free bits
mov pc, lr
ENDPROC(_find_first_zero_bit_le)
/*
* Purpose : Find next 'zero' bit
@ -50,6 +51,7 @@ ENTRY(_find_next_zero_bit_le)
orr r2, r2, #7 @ if zero, then no bits here
add r2, r2, #1 @ align bit pointer
b 2b @ loop for next bit
ENDPROC(_find_next_zero_bit_le)
/*
* Purpose : Find a 'one' bit
@ -67,6 +69,7 @@ ENTRY(_find_first_bit_le)
blo 1b
3: mov r0, r1 @ no free bits
mov pc, lr
ENDPROC(_find_first_bit_le)
/*
* Purpose : Find next 'one' bit
@ -83,6 +86,7 @@ ENTRY(_find_next_bit_le)
orr r2, r2, #7 @ if zero, then no bits here
add r2, r2, #1 @ align bit pointer
b 2b @ loop for next bit
ENDPROC(_find_next_bit_le)
#ifdef __ARMEB__
@ -99,6 +103,7 @@ ENTRY(_find_first_zero_bit_be)
blo 1b
3: mov r0, r1 @ no free bits
mov pc, lr
ENDPROC(_find_first_zero_bit_be)
ENTRY(_find_next_zero_bit_be)
teq r1, #0
@ -113,6 +118,7 @@ ENTRY(_find_next_zero_bit_be)
orr r2, r2, #7 @ if zero, then no bits here
add r2, r2, #1 @ align bit pointer
b 2b @ loop for next bit
ENDPROC(_find_next_zero_bit_be)
ENTRY(_find_first_bit_be)
teq r1, #0
@ -127,6 +133,7 @@ ENTRY(_find_first_bit_be)
blo 1b
3: mov r0, r1 @ no free bits
mov pc, lr
ENDPROC(_find_first_bit_be)
ENTRY(_find_next_bit_be)
teq r1, #0
@ -140,6 +147,7 @@ ENTRY(_find_next_bit_be)
orr r2, r2, #7 @ if zero, then no bits here
add r2, r2, #1 @ align bit pointer
b 2b @ loop for next bit
ENDPROC(_find_next_bit_be)
#endif

14
arch/arm/lib/getuser.S
View file

@ -26,16 +26,16 @@
* Note that ADDR_LIMIT is either 0 or 0xc0000000.
* Note also that it is intended that __get_user_bad is not global.
*/
#include <linux/linkage.h>
#include <asm/errno.h>
.global __get_user_1
__get_user_1:
ENTRY(__get_user_1)
1: ldrbt r2, [r0]
mov r0, #0
mov pc, lr
ENDPROC(__get_user_1)
.global __get_user_2
__get_user_2:
ENTRY(__get_user_2)
2: ldrbt r2, [r0], #1
3: ldrbt r3, [r0]
#ifndef __ARMEB__
@ -45,17 +45,19 @@ __get_user_2:
#endif
mov r0, #0
mov pc, lr
ENDPROC(__get_user_2)
.global __get_user_4
__get_user_4:
ENTRY(__get_user_4)
4: ldrt r2, [r0]
mov r0, #0
mov pc, lr
ENDPROC(__get_user_4)
__get_user_bad:
mov r2, #0
mov r0, #-EFAULT
mov pc, lr
ENDPROC(__get_user_bad)
.section __ex_table, "a"
.long 1b, __get_user_bad

1
arch/arm/lib/io-readsb.S
View file

@ -120,3 +120,4 @@ ENTRY(__raw_readsb)
strgtb r3, [r1]
ldmfd sp!, {r4 - r6, pc}
ENDPROC(__raw_readsb)

1
arch/arm/lib/io-readsl.S
View file

@ -76,3 +76,4 @@ ENTRY(__raw_readsl)
8: mov r3, ip, get_byte_0
strb r3, [r1, #0]
mov pc, lr
ENDPROC(__raw_readsl)

1
arch/arm/lib/io-readsw-armv4.S
View file

@ -128,3 +128,4 @@ ENTRY(__raw_readsw)
_BE_ONLY_( movne ip, ip, lsr #24 )
strneb ip, [r1]
ldmfd sp!, {r4, pc}
ENDPROC(__raw_readsw)

1
arch/arm/lib/io-writesb.S
View file

@ -91,3 +91,4 @@ ENTRY(__raw_writesb)
strgtb r3, [r0]
ldmfd sp!, {r4, r5, pc}
ENDPROC(__raw_writesb)

1
arch/arm/lib/io-writesl.S
View file

@ -64,3 +64,4 @@ ENTRY(__raw_writesl)
str ip, [r0]
bne 6b
mov pc, lr
ENDPROC(__raw_writesl)

1
arch/arm/lib/io-writesw-armv4.S
View file

@ -94,3 +94,4 @@ ENTRY(__raw_writesw)
3: movne ip, r3, lsr #8
strneh ip, [r0]
mov pc, lr
ENDPROC(__raw_writesw)

11
arch/arm/lib/lib1funcs.S
View file

@ -230,6 +230,8 @@ ENTRY(__aeabi_uidiv)
mov r0, r0, lsr r2
mov pc, lr
ENDPROC(__udivsi3)
ENDPROC(__aeabi_uidiv)
ENTRY(__umodsi3)
@ -245,6 +247,7 @@ ENTRY(__umodsi3)
mov pc, lr
ENDPROC(__umodsi3)
ENTRY(__divsi3)
ENTRY(__aeabi_idiv)
@ -284,6 +287,8 @@ ENTRY(__aeabi_idiv)
rsbmi r0, r0, #0
mov pc, lr
ENDPROC(__divsi3)
ENDPROC(__aeabi_idiv)
ENTRY(__modsi3)
@ -305,6 +310,8 @@ ENTRY(__modsi3)
rsbmi r0, r0, #0
mov pc, lr
ENDPROC(__modsi3)
#ifdef CONFIG_AEABI
ENTRY(__aeabi_uidivmod)
@ -316,6 +323,8 @@ ENTRY(__aeabi_uidivmod)
sub r1, r1, r3
mov pc, lr
ENDPROC(__aeabi_uidivmod)
ENTRY(__aeabi_idivmod)
stmfd sp!, {r0, r1, ip, lr}
@ -325,6 +334,8 @@ ENTRY(__aeabi_idivmod)
sub r1, r1, r3
mov pc, lr
ENDPROC(__aeabi_idivmod)
#endif
Ldiv0:

2
arch/arm/lib/lshrdi3.S
View file

@ -47,3 +47,5 @@ ENTRY(__aeabi_llsr)
mov ah, ah, lsr r2
mov pc, lr
ENDPROC(__lshrdi3)
ENDPROC(__aeabi_llsr)

1
arch/arm/lib/memchr.S
View file

@ -23,3 +23,4 @@ ENTRY(memchr)
sub r0, r0, #1
2: movne r0, #0
mov pc, lr
ENDPROC(memchr)

1
arch/arm/lib/memcpy.S
View file

@ -57,3 +57,4 @@ ENTRY(memcpy)
#include "copy_template.S"
ENDPROC(memcpy)

1
arch/arm/lib/memmove.S
View file

@ -196,3 +196,4 @@ ENTRY(memmove)
18: backward_copy_shift push=24 pull=8
ENDPROC(memmove)

1
arch/arm/lib/memset.S
View file

@ -124,3 +124,4 @@ ENTRY(memset)
tst r2, #1
strneb r1, [r0], #1
mov pc, lr
ENDPROC(memset)

1
arch/arm/lib/memzero.S
View file

@ -122,3 +122,4 @@ ENTRY(__memzero)
tst r1, #1 @ 1 a byte left over
strneb r2, [r0], #1 @ 1
mov pc, lr @ 1
ENDPROC(__memzero)

2
arch/arm/lib/muldi3.S
View file

@ -43,3 +43,5 @@ ENTRY(__aeabi_lmul)
adc xh, xh, ip, lsr #16
mov pc, lr
ENDPROC(__muldi3)
ENDPROC(__aeabi_lmul)

18
arch/arm/lib/putuser.S
View file

@ -26,16 +26,16 @@
* Note that ADDR_LIMIT is either 0 or 0xc0000000
* Note also that it is intended that __put_user_bad is not global.
*/
#include <linux/linkage.h>
#include <asm/errno.h>
.global __put_user_1
__put_user_1:
ENTRY(__put_user_1)
1: strbt r2, [r0]
mov r0, #0
mov pc, lr
ENDPROC(__put_user_1)
.global __put_user_2
__put_user_2:
ENTRY(__put_user_2)
mov ip, r2, lsr #8
#ifndef __ARMEB__
2: strbt r2, [r0], #1
@ -46,23 +46,25 @@ __put_user_2:
#endif
mov r0, #0
mov pc, lr
ENDPROC(__put_user_2)
.global __put_user_4
__put_user_4:
ENTRY(__put_user_4)
4: strt r2, [r0]
mov r0, #0
mov pc, lr
ENDPROC(__put_user_4)
.global __put_user_8
__put_user_8:
ENTRY(__put_user_8)
5: strt r2, [r0], #4
6: strt r3, [r0]
mov r0, #0
mov pc, lr
ENDPROC(__put_user_8)
__put_user_bad:
mov r0, #-EFAULT
mov pc, lr
ENDPROC(__put_user_bad)
.section __ex_table, "a"
.long 1b, __put_user_bad

2
arch/arm/lib/setbit.S
View file

@ -20,3 +20,5 @@ ENTRY(_set_bit_be)
eor r0, r0, #0x18 @ big endian byte ordering
ENTRY(_set_bit_le)
bitop orr
ENDPROC(_set_bit_be)
ENDPROC(_set_bit_le)

3
arch/arm/lib/sha1.S
View file

@ -185,6 +185,8 @@ ENTRY(sha_transform)
ldmfd sp!, {r4 - r8, pc}
ENDPROC(sha_transform)
.L_sha_K:
.word 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6
@ -204,3 +206,4 @@ ENTRY(sha_init)
stmia r0, {r1, r2, r3, ip, lr}
ldr pc, [sp], #4
ENDPROC(sha_init)

1
arch/arm/lib/strchr.S
View file

@ -24,3 +24,4 @@ ENTRY(strchr)
movne r0, #0
subeq r0, r0, #1
mov pc, lr
ENDPROC(strchr)

1
arch/arm/lib/strncpy_from_user.S
View file

@ -31,6 +31,7 @@ USER( ldrplbt r3, [r1], #1)
sub r1, r1, #1 @ take NUL character out of count
2: sub r0, r1, ip
mov pc, lr
ENDPROC(__strncpy_from_user)
.section .fixup,"ax"
.align 0

1
arch/arm/lib/strnlen_user.S
View file

@ -31,6 +31,7 @@ USER( ldrbt r3, [r0], #1)
add r0, r0, #1
2: sub r0, r0, r2
mov pc, lr
ENDPROC(__strnlen_user)
.section .fixup,"ax"
.align 0

1
arch/arm/lib/strrchr.S
View file

@ -23,3 +23,4 @@ ENTRY(strrchr)
bne 1b
mov r0, r3
mov pc, lr
ENDPROC(strrchr)

2
arch/arm/lib/testchangebit.S
View file

@ -16,3 +16,5 @@ ENTRY(_test_and_change_bit_be)
eor r0, r0, #0x18 @ big endian byte ordering
ENTRY(_test_and_change_bit_le)
testop eor, strb
ENDPROC(_test_and_change_bit_be)
ENDPROC(_test_and_change_bit_le)

2
arch/arm/lib/testclearbit.S
View file

@ -16,3 +16,5 @@ ENTRY(_test_and_clear_bit_be)
eor r0, r0, #0x18 @ big endian byte ordering
ENTRY(_test_and_clear_bit_le)
testop bicne, strneb
ENDPROC(_test_and_clear_bit_be)
ENDPROC(_test_and_clear_bit_le)

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