diff options
Diffstat (limited to 'arch/mips/include/asm/barrier.h')
| -rw-r--r-- | arch/mips/include/asm/barrier.h | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/arch/mips/include/asm/barrier.h b/arch/mips/include/asm/barrier.h index 91785dc8e94e..1a5a51c3e96f 100644 --- a/arch/mips/include/asm/barrier.h +++ b/arch/mips/include/asm/barrier.h @@ -131,23 +131,26 @@ #endif /* !CONFIG_CPU_HAS_WB */ #if defined(CONFIG_WEAK_ORDERING) && defined(CONFIG_SMP) -#define __WEAK_ORDERING_MB " sync \n" +#define smp_mb() __asm__ __volatile__("sync" : : :"memory") +#define smp_rmb() __asm__ __volatile__("sync" : : :"memory") +#define smp_wmb() __asm__ __volatile__("sync" : : :"memory") #else -#define __WEAK_ORDERING_MB " \n" +#define smp_mb() barrier() +#define smp_rmb() barrier() +#define smp_wmb() barrier() #endif + #if defined(CONFIG_WEAK_REORDERING_BEYOND_LLSC) && defined(CONFIG_SMP) #define __WEAK_LLSC_MB " sync \n" #else #define __WEAK_LLSC_MB " \n" #endif -#define smp_mb() __asm__ __volatile__(__WEAK_ORDERING_MB : : :"memory") -#define smp_rmb() __asm__ __volatile__(__WEAK_ORDERING_MB : : :"memory") -#define smp_wmb() __asm__ __volatile__(__WEAK_ORDERING_MB : : :"memory") - #define set_mb(var, value) \ do { var = value; smp_mb(); } while (0) #define smp_llsc_mb() __asm__ __volatile__(__WEAK_LLSC_MB : : :"memory") +#define smp_mb__before_llsc() smp_llsc_mb() + #endif /* __ASM_BARRIER_H */ |