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authorAnshuman Khandual <anshuman.khandual@arm.com>2022-01-25 15:20:34 +0100
committerMathieu Poirier <mathieu.poirier@linaro.org>2022-01-27 20:01:53 +0100
commit708e8af4924ec2fdd5b81fe09192c6bac2f86935 (patch)
tree67d94b1158ba787bd00437ab4e17747266a6a820 /kernel
parentarm64: errata: Add detection for TRBE invalid prohibited states (diff)
downloadlinux-708e8af4924ec2fdd5b81fe09192c6bac2f86935.tar.xz
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arm64: errata: Add detection for TRBE trace data corruption
TRBE implementations affected by Arm erratum #1902691 might corrupt trace data or deadlock, when it's being written into the memory. So effectively TRBE is broken and hence cannot be used to capture trace data. This adds a new errata ARM64_ERRATUM_1902691 in arm64 errata framework. Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Suzuki Poulose <suzuki.poulose@arm.com> Cc: coresight@lists.linaro.org Cc: linux-doc@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Link: https://lore.kernel.org/r/1643120437-14352-5-git-send-email-anshuman.khandual@arm.com Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
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