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x86: unify TASK_ALIGN definitions

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This patch moves the TASK_ALIGN constraints to common header.
The base of it is the same for x86_64 and i386. The only difference
is the presence of vSMP in x86_64. As it's not a worry in i386, we can
safely use the same code for both.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Glauber de Oliveira Costa 2008-01-30 13:31:31 +01:00 committed by Ingo Molnar
parent cb38d37733
commit dbcb466024
3 changed files with 8 additions and 9 deletions
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8
include/asm-x86/processor.h
View File

@ -22,6 +22,14 @@ static inline void *current_text_addr(void)
return pc;
}
#ifdef CONFIG_X86_VSMP
#define ARCH_MIN_TASKALIGN (1 << INTERNODE_CACHE_SHIFT)
#define ARCH_MIN_MMSTRUCT_ALIGN (1 << INTERNODE_CACHE_SHIFT)
#else
#define ARCH_MIN_TASKALIGN 16
#define ARCH_MIN_MMSTRUCT_ALIGN 0
#endif
static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
unsigned int *ecx, unsigned int *edx)
{

1
include/asm-x86/processor_32.h
View File

@ -174,7 +174,6 @@ typedef struct {
unsigned long seg;
} mm_segment_t;
#define ARCH_MIN_TASKALIGN 16
#define INIT_THREAD { \
.sp0 = sizeof(init_stack) + (long)&init_stack, \

8
include/asm-x86/processor_64.h
View File

@ -117,14 +117,6 @@ struct orig_ist {
};
DECLARE_PER_CPU(struct orig_ist, orig_ist);
#ifdef CONFIG_X86_VSMP
#define ARCH_MIN_TASKALIGN (1 << INTERNODE_CACHE_SHIFT)
#define ARCH_MIN_MMSTRUCT_ALIGN (1 << INTERNODE_CACHE_SHIFT)
#else
#define ARCH_MIN_TASKALIGN 16
#define ARCH_MIN_MMSTRUCT_ALIGN 0
#endif
#define INIT_THREAD { \
.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
}