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| author | Ingo Molnar <mingo@elte.hu> | 2011-03-04 10:40:22 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-03-04 10:40:25 +0100 |
| commit | 888a8a3e9d79cbb9d83e53955f684998248580ec (patch) | |
| tree | 3dbf548438c77d89c8696a9a79c4129cdc2f3d3e /arch/arm/mm/cache-l2x0.c | |
| parent | cfff2d909cbdaf8c467bd321aa0502a548ec8f7e (diff) | |
| parent | b06b3d49699a52e8f9ca056c4f96e81b1987d78e (diff) | |
Merge branch 'perf/urgent' into perf/core
Merge reason: Pick up updates before queueing up dependent patches.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/mm/cache-l2x0.c')
| -rw-r--r-- | arch/arm/mm/cache-l2x0.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index 170c9bb9586..f2ce38e085d 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -49,7 +49,13 @@ static inline void cache_wait(void __iomem *reg, unsigned long mask) static inline void cache_sync(void) { void __iomem *base = l2x0_base; + +#ifdef CONFIG_ARM_ERRATA_753970 + /* write to an unmmapped register */ + writel_relaxed(0, base + L2X0_DUMMY_REG); +#else writel_relaxed(0, base + L2X0_CACHE_SYNC); +#endif cache_wait(base + L2X0_CACHE_SYNC, 1); } |