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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>
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Glauber de Oliveira Costa authored and Ingo Molnar committed Jan 30, 2008
1 parent cb38d37 commit dbcb466
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Showing 3 changed files with 8 additions and 9 deletions.
8 changes: 8 additions & 0 deletions include/asm-x86/processor.h
Original file line number Diff line number Diff line change
Expand Up @@ -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)
{
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1 change: 0 additions & 1 deletion include/asm-x86/processor_32.h
Original file line number Diff line number Diff line change
Expand Up @@ -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, \
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8 changes: 0 additions & 8 deletions include/asm-x86/processor_64.h
Original file line number Diff line number Diff line change
Expand Up @@ -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) \
}
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