diff options
Diffstat (limited to 'arch/mips/include/asm/barrier.h')
| -rw-r--r-- | arch/mips/include/asm/barrier.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/mips/include/asm/barrier.h b/arch/mips/include/asm/barrier.h index a2670a239e0c..c0884f02d3a6 100644 --- a/arch/mips/include/asm/barrier.h +++ b/arch/mips/include/asm/barrier.h @@ -168,8 +168,14 @@ #ifdef CONFIG_CPU_CAVIUM_OCTEON #define smp_mb__before_llsc() smp_wmb() +/* Cause previous writes to become visible on all CPUs as soon as possible */ +#define nudge_writes() __asm__ __volatile__(".set push\n\t" \ + ".set arch=octeon\n\t" \ + "syncw\n\t" \ + ".set pop" : : : "memory") #else #define smp_mb__before_llsc() smp_llsc_mb() +#define nudge_writes() mb() #endif #endif /* __ASM_BARRIER_H */ |