Merge branch 'devel-stable' into devel

[pandora-kernel.git] / arch / arm / include / asm / system.h

diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index 02f5d99..5f4f480 100644 (file)
--- 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 defined(CONFIG_ARM_DMA_MEM_BUFFERABLE) || defined(CONFIG_SMP)
-#define mb()           dmb()
+#ifdef CONFIG_ARCH_HAS_BARRIERS
+#include <mach/barriers.h>
+#elif defined(CONFIG_ARM_DMA_MEM_BUFFERABLE) || 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)