diff options
Diffstat (limited to 'include/asm-arm/system.h')
| -rw-r--r-- | include/asm-arm/system.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/asm-arm/system.h b/include/asm-arm/system.h index 3f9c3626a73c..8efa4ebdcacb 100644 --- a/include/asm-arm/system.h +++ b/include/asm-arm/system.h @@ -139,7 +139,12 @@ extern unsigned int user_debug; #define vectors_high() (0) #endif +#if __LINUX_ARM_ARCH__ >= 6 +#define mb() __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 5" \ + : : "r" (0) : "memory") +#else #define mb() __asm__ __volatile__ ("" : : : "memory") +#endif #define rmb() mb() #define wmb() mb() #define read_barrier_depends() do { } while(0) |