Messages in this thread | | | Date | Fri, 7 Jan 2022 11:58:28 +0000 | Subject | Re: [PATCH V2 4/7] arm64: errata: Add detection for TRBE trace data corruption | From | Suzuki K Poulose <> |
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On 07/01/2022 01:10, Anshuman Khandual wrote: > 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 > Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> > --- > Documentation/arm64/silicon-errata.rst | 2 ++ > arch/arm64/Kconfig | 18 ++++++++++++++++++ > arch/arm64/kernel/cpu_errata.c | 9 +++++++++ > arch/arm64/tools/cpucaps | 1 + > 4 files changed, 30 insertions(+)
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
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