Merge branch 'for-linus' of git://neil.brown.name/md

[mv-sheeva.git] / arch / arm / Kconfig

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 26d45e5b636b7fcfcf4501a78347e0192a5f9429..166efa2a19cd96eb05ad5b4b599708c9a68c1d70 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1177,6 +1177,31 @@ config ARM_ERRATA_743622
          visible impact on the overall performance or power consumption of the
          processor.
 
+config ARM_ERRATA_751472
+       bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
+       depends on CPU_V7 && SMP
+       help
+         This option enables the workaround for the 751472 Cortex-A9 (prior
+         to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
+         completion of a following broadcasted operation if the second
+         operation is received by a CPU before the ICIALLUIS has completed,
+         potentially leading to corrupted entries in the cache or TLB.
+
+config ARM_ERRATA_753970
+       bool "ARM errata: cache sync operation may be faulty"
+       depends on CACHE_PL310
+       help
+         This option enables the workaround for the 753970 PL310 (r3p0) erratum.
+
+         Under some condition the effect of cache sync operation on
+         the store buffer still remains when the operation completes.
+         This means that the store buffer is always asked to drain and
+         this prevents it from merging any further writes. The workaround
+         is to replace the normal offset of cache sync operation (0x730)
+         by another offset targeting an unmapped PL310 register 0x740.
+         This has the same effect as the cache sync operation: store buffer
+         drain and waiting for all buffers empty.
+
 endmenu
 
 source "arch/arm/common/Kconfig"