diff options
| author |   Tejun Heo <tj@kernel.org> | 2010-04-05 11:37:28 +0900 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2010-04-05 11:37:28 +0900 |
| commit | 336f5899d287f06d8329e208fc14ce50f7ec9698 (patch) | |
| tree | 9b762d450d5eb248a6ff8317badb7e223d93ed58 /arch/arm/include/asm/system.h | |
| parent | staging/otus: include slab.h from usbdrv.h (diff) | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 (diff) | |
| download | linux-dev-336f5899d287f06d8329e208fc14ce50f7ec9698.tar.xz linux-dev-336f5899d287f06d8329e208fc14ce50f7ec9698.zip | |
Merge branch 'master' into export-slabh
Diffstat (limited to 'arch/arm/include/asm/system.h')
| -rw-r--r-- | arch/arm/include/asm/system.h | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index ca88e6a84707..4ace45ec3ef8 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -60,6 +60,8 @@ #include <linux/linkage.h> #include <linux/irqflags.h> +#include <asm/outercache.h> + #define __exception __attribute__((section(".exception.text"))) struct thread_info; @@ -137,10 +139,12 @@ extern unsigned int user_debug; #define dmb() __asm__ __volatile__ ("" : : : "memory") #endif -#if __LINUX_ARM_ARCH__ >= 7 || defined(CONFIG_SMP) -#define mb() dmb() +#ifdef CONFIG_ARCH_HAS_BARRIERS +#include <mach/barriers.h> +#elif __LINUX_ARM_ARCH__ >= 7 || defined(CONFIG_SMP) +#define mb() do { dsb(); outer_sync(); } while (0) #define rmb() dmb() -#define wmb() dmb() +#define wmb() mb() #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) @@ -152,9 +156,9 @@ extern unsigned int user_debug; #define smp_rmb() barrier() #define smp_wmb() barrier() #else -#define smp_mb() mb() -#define smp_rmb() rmb() -#define smp_wmb() wmb() +#define smp_mb() dmb() +#define smp_rmb() dmb() +#define smp_wmb() dmb() #endif #define read_barrier_depends() do { } while(0) |