diff options
Diffstat (limited to 'include/asm-x86/system_64.h')
| -rw-r--r-- | include/asm-x86/system_64.h | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/include/asm-x86/system_64.h b/include/asm-x86/system_64.h index 560470ea27c8..9def35eb75e3 100644 --- a/include/asm-x86/system_64.h +++ b/include/asm-x86/system_64.h @@ -48,31 +48,6 @@ #endif /* __KERNEL__ */ -#ifdef CONFIG_SMP -#define smp_mb() mb() -#define smp_rmb() barrier() -#define smp_wmb() barrier() -#define smp_read_barrier_depends() do {} while(0) -#else -#define smp_mb() barrier() -#define smp_rmb() barrier() -#define smp_wmb() barrier() -#define smp_read_barrier_depends() do {} while(0) -#endif - - -/* - * Force strict CPU ordering. - * And yes, this is required on UP too when we're talking - * to devices. - */ -#define mb() asm volatile("mfence":::"memory") -#define rmb() asm volatile("lfence":::"memory") -#define wmb() asm volatile("sfence" ::: "memory") - -#define read_barrier_depends() do {} while(0) -#define set_mb(var, value) do { (void) xchg(&var, value); } while (0) - static inline unsigned long read_cr8(void) { unsigned long cr8; |