This series adds three different workarounds in the TRBE driver for Cortex-A510 specific erratas. But first, this adds Cortex-A510 specific cpu part number definition in the platform. This series applies on 5.16-rc8. Relevant errata documents can be found here. https://developer.arm.com/documentation/SDEN2397239/900 https://developer.arm.com/documentation/SDEN2397589/900 Cc: Catalin Marinas <catalin.marinas@xxxxxxx> Cc: Will Deacon <will@xxxxxxxxxx> Cc: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx> Cc: Suzuki Poulose <suzuki.poulose@xxxxxxx> Cc: coresight@xxxxxxxxxxxxxxxx Cc: linux-doc@xxxxxxxxxxxxxxx Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx Anshuman Khandual (4): arm64: Add Cortex-A510 CPU part definition coresight: trbe: Work around the ignored system register writes coresight: trbe: Work around the invalid prohibited states coresight: trbe: Workaround TRBE trace data corruption Documentation/arm64/silicon-errata.rst | 6 + arch/arm64/Kconfig | 57 ++++++++++ arch/arm64/include/asm/cputype.h | 2 + arch/arm64/kernel/cpu_errata.c | 27 +++++ arch/arm64/tools/cpucaps | 3 + drivers/hwtracing/coresight/coresight-trbe.c | 111 ++++++++++++++----- drivers/hwtracing/coresight/coresight-trbe.h | 8 -- 7 files changed, 181 insertions(+), 33 deletions(-) -- 2.25.1
