[PATCH 0/4] coresight: trbe: Workaround Cortex-A510 erratas

Anshuman Khandual anshuman.khandual at arm.com
Tue Jan 4 21:05:55 PST 2022


	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 at arm.com>
Cc: Will Deacon <will at kernel.org>
Cc: Mathieu Poirier <mathieu.poirier at linaro.org>
Cc: Suzuki Poulose <suzuki.poulose at arm.com>
Cc: coresight at lists.linaro.org
Cc: linux-doc at vger.kernel.org
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-kernel at vger.kernel.org

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




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