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| author | Paul Mundt <lethal@linux-sh.org> | 2009-12-10 15:40:31 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-12-10 15:40:31 +0900 |
| commit | b5c00a3a412857d6f07970984068c450429e051c (patch) | |
| tree | 1fde50630cbc24e11a45169f717f281db8eb6dcc /arch/arm/include/asm/system.h | |
| parent | ca6f2d7fafd2d48b2f6943f5c6787beaec2014d0 (diff) | |
| parent | 3067e02f8f3ae2f3f02ba76400d03b8bcb4942b0 (diff) | |
| download | kernel-crypto-b5c00a3a412857d6f07970984068c450429e051c.tar.gz kernel-crypto-b5c00a3a412857d6f07970984068c450429e051c.tar.xz kernel-crypto-b5c00a3a412857d6f07970984068c450429e051c.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh/for-2.6.33
Diffstat (limited to 'arch/arm/include/asm/system.h')
| -rw-r--r-- | arch/arm/include/asm/system.h | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index d65b2f5bf41..058e7e90881 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -138,21 +138,26 @@ extern unsigned int user_debug; #define dmb() __asm__ __volatile__ ("" : : : "memory") #endif -#ifndef CONFIG_SMP +#if __LINUX_ARM_ARCH__ >= 7 || defined(CONFIG_SMP) +#define mb() dmb() +#define rmb() dmb() +#define wmb() dmb() +#else #define mb() do { if (arch_is_coherent()) dmb(); else barrier(); } while (0) #define rmb() do { if (arch_is_coherent()) dmb(); else barrier(); } while (0) #define wmb() do { if (arch_is_coherent()) dmb(); else barrier(); } while (0) +#endif + +#ifndef CONFIG_SMP #define smp_mb() barrier() #define smp_rmb() barrier() #define smp_wmb() barrier() #else -#define mb() dmb() -#define rmb() dmb() -#define wmb() dmb() -#define smp_mb() dmb() -#define smp_rmb() dmb() -#define smp_wmb() dmb() +#define smp_mb() mb() +#define smp_rmb() rmb() +#define smp_wmb() wmb() #endif + #define read_barrier_depends() do { } while(0) #define smp_read_barrier_depends() do { } while(0) |