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authorWill Deacon <will.deacon@arm.com>2011-02-18 15:36:35 (GMT)
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-02-19 11:24:12 (GMT)
commit9a27c27ce49df72b1b0062e2ad192a804e1b069b (patch)
tree5b9a40505271f8d0fa2c685e75300fd661a74948 /arch/arm/boot
parent71efb063f4a145ae420be054f5a91dcf7c19b375 (diff)
downloadlinux-fsl-qoriq-9a27c27ce49df72b1b0062e2ad192a804e1b069b.tar.xz
ARM: 6743/1: errata: interrupted ICALLUIS may prevent completion of broadcasted operation
On versions of the Cortex-A9 prior to r3p0, 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. This workaround sets a bit in the diagnostic register of the Cortex-A9, causing CP15 maintenance operations to be uninterruptible. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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