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| author | Catalin Marinas <catalin.marinas@arm.com> | 2011-04-06 17:18:47 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-05-12 11:52:00 +0200 |
| commit | a904f5f9eb7a55baacb2f4c1423cac8a8eb78a3a (patch) | |
| tree | d3ada07264a900601f8e610f9270b5319a6631d4 /arch/arm/mach-realview/include | |
| parent | ARM: 6892/1: handle ptrace requests to change PC during interrupted system calls (diff) | |
| download | linux-a904f5f9eb7a55baacb2f4c1423cac8a8eb78a3a.tar.xz linux-a904f5f9eb7a55baacb2f4c1423cac8a8eb78a3a.zip | |
ARM: 6870/1: The mandatory barrier rmb() must be a dsb() in for device accesses
Since mandatory barriers may be used (explicitly or implicitly via readl
etc.) to ensure the ordering between Device and Normal memory accesses,
a DMB is not enough. This patch converts it to a DSB.
Cc: Colin Cross <ccross@android.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-realview/include')
| -rw-r--r-- | arch/arm/mach-realview/include/mach/barriers.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mach-realview/include/mach/barriers.h b/arch/arm/mach-realview/include/mach/barriers.h index 0c5d749d7b5f..9a732195aa1c 100644 --- a/arch/arm/mach-realview/include/mach/barriers.h +++ b/arch/arm/mach-realview/include/mach/barriers.h @@ -4,5 +4,5 @@ * operation to deadlock the system. */ #define mb() dsb() -#define rmb() dmb() +#define rmb() dsb() #define wmb() mb() |