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authorLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 08:34:07 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 08:34:07 -0700
commit874f6d1be7699b5d1873283b4737712cbabd7754 (patch)
tree55f8a0d08d32f3a4beed6c76f9e48db896b8d3bb /arch/x86
parente486b4c4ba601410772136ba0f8337bf545dccad (diff)
parentd50ba3687b99213501463a1947e3dd5b98bc2d99 (diff)
downloadlinux-874f6d1be7699b5d1873283b4737712cbabd7754.tar.gz
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Ingo Molnar: "Misc smaller cleanups" * 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/lib: Fix spelling, put space between a numeral and its units x86/lib: Fix spelling in the comments x86, quirks: Shut-up a long-standing gcc warning x86, msr: Unify variable names x86-64, docs, mm: Add vsyscall range to virtual address space layout x86: Drop KERNEL_IMAGE_START x86_64: Use __BOOT_DS instead_of __KERNEL_DS for safety
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/boot/compressed/head_64.S2
-rw-r--r--arch/x86/include/asm/msr.h14
-rw-r--r--arch/x86/include/asm/page_64_types.h1
-rw-r--r--arch/x86/kernel/head64.c6
-rw-r--r--arch/x86/kernel/quirks.c18
-rw-r--r--arch/x86/lib/checksum_32.S2
-rw-r--r--arch/x86/lib/memcpy_32.c6
-rw-r--r--arch/x86/lib/memcpy_64.S2
-rw-r--r--arch/x86/lib/memmove_64.S6
9 files changed, 30 insertions, 27 deletions
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index c1d383d1fb7..16f24e6dad7 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -52,7 +52,7 @@ ENTRY(startup_32)
jnz 1f
cli
- movl $(__KERNEL_DS), %eax
+ movl $(__BOOT_DS), %eax
movl %eax, %ds
movl %eax, %es
movl %eax, %ss
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 9264802e282..cb7502852ac 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -137,11 +137,11 @@ static inline unsigned long long native_read_pmc(int counter)
* pointer indirection), this allows gcc to optimize better
*/
-#define rdmsr(msr, val1, val2) \
+#define rdmsr(msr, low, high) \
do { \
u64 __val = native_read_msr((msr)); \
- (void)((val1) = (u32)__val); \
- (void)((val2) = (u32)(__val >> 32)); \
+ (void)((low) = (u32)__val); \
+ (void)((high) = (u32)(__val >> 32)); \
} while (0)
static inline void wrmsr(unsigned msr, unsigned low, unsigned high)
@@ -162,12 +162,12 @@ static inline int wrmsr_safe(unsigned msr, unsigned low, unsigned high)
}
/* rdmsr with exception handling */
-#define rdmsr_safe(msr, p1, p2) \
+#define rdmsr_safe(msr, low, high) \
({ \
int __err; \
u64 __val = native_read_msr_safe((msr), &__err); \
- (*p1) = (u32)__val; \
- (*p2) = (u32)(__val >> 32); \
+ (*low) = (u32)__val; \
+ (*high) = (u32)(__val >> 32); \
__err; \
})
@@ -208,7 +208,7 @@ do { \
#define wrmsrl_safe(msr, val) wrmsr_safe((msr), (u32)(val), \
(u32)((val) >> 32))
-#define write_tsc(val1, val2) wrmsr(MSR_IA32_TSC, (val1), (val2))
+#define write_tsc(low, high) wrmsr(MSR_IA32_TSC, (low), (high))
#define write_rdtscp_aux(val) wrmsr(MSR_TSC_AUX, (val), 0)
diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h
index 8b491e66eaa..6c896fbe21d 100644
--- a/arch/x86/include/asm/page_64_types.h
+++ b/arch/x86/include/asm/page_64_types.h
@@ -48,6 +48,5 @@
* arch/x86/kernel/head_64.S), and it is mapped here:
*/
#define KERNEL_IMAGE_SIZE (512 * 1024 * 1024)
-#define KERNEL_IMAGE_START _AC(0xffffffff80000000, UL)
#endif /* _ASM_X86_PAGE_64_DEFS_H */
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index c5e403f6d86..101ac1a9263 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -144,10 +144,10 @@ void __init x86_64_start_kernel(char * real_mode_data)
* Build-time sanity checks on the kernel image and module
* area mappings. (these are purely build-time and produce no code)
*/
- BUILD_BUG_ON(MODULES_VADDR < KERNEL_IMAGE_START);
- BUILD_BUG_ON(MODULES_VADDR-KERNEL_IMAGE_START < KERNEL_IMAGE_SIZE);
+ BUILD_BUG_ON(MODULES_VADDR < __START_KERNEL_map);
+ BUILD_BUG_ON(MODULES_VADDR - __START_KERNEL_map < KERNEL_IMAGE_SIZE);
BUILD_BUG_ON(MODULES_LEN + KERNEL_IMAGE_SIZE > 2*PUD_SIZE);
- BUILD_BUG_ON((KERNEL_IMAGE_START & ~PMD_MASK) != 0);
+ BUILD_BUG_ON((__START_KERNEL_map & ~PMD_MASK) != 0);
BUILD_BUG_ON((MODULES_VADDR & ~PMD_MASK) != 0);
BUILD_BUG_ON(!(MODULES_VADDR > __START_KERNEL));
BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) ==
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 26ee48a33dc..04ee1e2e4c0 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -354,18 +354,22 @@ static void ati_force_hpet_resume(void)
static u32 ati_ixp4x0_rev(struct pci_dev *dev)
{
- u32 d;
- u8 b;
+ int err = 0;
+ u32 d = 0;
+ u8 b = 0;
- pci_read_config_byte(dev, 0xac, &b);
+ err = pci_read_config_byte(dev, 0xac, &b);
b &= ~(1<<5);
- pci_write_config_byte(dev, 0xac, b);
- pci_read_config_dword(dev, 0x70, &d);
+ err |= pci_write_config_byte(dev, 0xac, b);
+ err |= pci_read_config_dword(dev, 0x70, &d);
d |= 1<<8;
- pci_write_config_dword(dev, 0x70, d);
- pci_read_config_dword(dev, 0x8, &d);
+ err |= pci_write_config_dword(dev, 0x70, d);
+ err |= pci_read_config_dword(dev, 0x8, &d);
d &= 0xff;
dev_printk(KERN_DEBUG, &dev->dev, "SB4X0 revision 0x%x\n", d);
+
+ WARN_ON_ONCE(err);
+
return d;
}
diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S
index 2af5df3ade7..e78b8eee661 100644
--- a/arch/x86/lib/checksum_32.S
+++ b/arch/x86/lib/checksum_32.S
@@ -61,7 +61,7 @@ ENTRY(csum_partial)
testl $3, %esi # Check alignment.
jz 2f # Jump if alignment is ok.
testl $1, %esi # Check alignment.
- jz 10f # Jump if alignment is boundary of 2bytes.
+ jz 10f # Jump if alignment is boundary of 2 bytes.
# buf is odd
dec %ecx
diff --git a/arch/x86/lib/memcpy_32.c b/arch/x86/lib/memcpy_32.c
index b908a59eccf..e78761d6b7f 100644
--- a/arch/x86/lib/memcpy_32.c
+++ b/arch/x86/lib/memcpy_32.c
@@ -26,7 +26,7 @@ void *memmove(void *dest, const void *src, size_t n)
char *ret = dest;
__asm__ __volatile__(
- /* Handle more 16bytes in loop */
+ /* Handle more 16 bytes in loop */
"cmp $0x10, %0\n\t"
"jb 1f\n\t"
@@ -51,7 +51,7 @@ void *memmove(void *dest, const void *src, size_t n)
"sub $0x10, %0\n\t"
/*
- * We gobble 16byts forward in each loop.
+ * We gobble 16 bytes forward in each loop.
*/
"3:\n\t"
"sub $0x10, %0\n\t"
@@ -117,7 +117,7 @@ void *memmove(void *dest, const void *src, size_t n)
"sub $0x10, %0\n\t"
/*
- * We gobble 16byts backward in each loop.
+ * We gobble 16 bytes backward in each loop.
*/
"7:\n\t"
"sub $0x10, %0\n\t"
diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
index 1c273be7c97..56313a32618 100644
--- a/arch/x86/lib/memcpy_64.S
+++ b/arch/x86/lib/memcpy_64.S
@@ -98,7 +98,7 @@ ENTRY(memcpy)
subq $0x20, %rdx
/*
* At most 3 ALU operations in one cycle,
- * so append NOPS in the same 16bytes trunk.
+ * so append NOPS in the same 16 bytes trunk.
*/
.p2align 4
.Lcopy_backward_loop:
diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S
index ee164610ec4..65268a6104f 100644
--- a/arch/x86/lib/memmove_64.S
+++ b/arch/x86/lib/memmove_64.S
@@ -27,7 +27,7 @@
ENTRY(memmove)
CFI_STARTPROC
- /* Handle more 32bytes in loop */
+ /* Handle more 32 bytes in loop */
mov %rdi, %rax
cmp $0x20, %rdx
jb 1f
@@ -56,7 +56,7 @@ ENTRY(memmove)
3:
sub $0x20, %rdx
/*
- * We gobble 32byts forward in each loop.
+ * We gobble 32 bytes forward in each loop.
*/
5:
sub $0x20, %rdx
@@ -122,7 +122,7 @@ ENTRY(memmove)
addq %rdx, %rdi
subq $0x20, %rdx
/*
- * We gobble 32byts backward in each loop.
+ * We gobble 32 bytes backward in each loop.
*/
8:
subq $0x20, %rdx