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* [PATCH 00/10] arm64: Self-hosted trace related erratum workarouds
@ 2021-07-28 13:52 Suzuki K Poulose
  2021-07-28 13:52 ` [PATCH 01/10] coresight: trbe: Add infrastructure for Errata handling Suzuki K Poulose
                   ` (9 more replies)
  0 siblings, 10 replies; 42+ messages in thread
From: Suzuki K Poulose @ 2021-07-28 13:52 UTC (permalink / raw)
  To: linux-arm-kernel
  Cc: linux-kernel, coresight, anshuman.khandual, will,
	catalin.marinas, james.morse, mathieu.poirier, mike.leach,
	leo.yan, maz, mark.rutland, Suzuki K Poulose


This series adds CPU erratum work arounds related to the self-hosted
tracing. The list of affected errata handled in this series are :

 * TRBE may overwrite trace in FILL mode
   - Arm Neoverse-N2	#2139208
   - Cortex-A710	#2119858

 * A TSB instruction may not flush the trace completely when executed
   in trace prohibited region.

   - Arm Neoverse-N2	#2067961
   - Cortex-A710	#2054223

The series applies on the self-hosted/trbe fixes posted here [0].
A tree containing both the series is available here [1].

 [0] https://lkml.kernel.org/r/20210723124456.3828769-1-suzuki.poulose@arm.com
 [1] git@git.gitlab.arm.com:linux-arm/linux-skp.git coresight/errata/trbe-tsb-n2-a710/v1


Suzuki K Poulose (10):
  coresight: trbe: Add infrastructure for Errata handling
  coresight: trbe: Add a helper to calculate the trace generated
  coresight: trbe: Add a helper to pad a given buffer area
  coresight: trbe: Decouple buffer base from the hardware base
  coresight: trbe: Allow driver to choose a different alignment
  arm64: Add Neoverse-N2, Cortex-A710 CPU part definition
  arm64: Add erratum detection for TRBE overwrite in FILL mode
  coresight: trbe: Workaround TRBE errat overwrite in FILL mode
  arm64: Enable workaround for TRBE overwrite in FILL mode
  arm64: errata: Add workaround for TSB flush failures

 Documentation/arm64/silicon-errata.rst       |   8 +
 arch/arm64/Kconfig                           |  70 ++++++
 arch/arm64/include/asm/barrier.h             |  17 +-
 arch/arm64/include/asm/cputype.h             |   4 +
 arch/arm64/kernel/cpu_errata.c               |  44 ++++
 arch/arm64/tools/cpucaps                     |   2 +
 drivers/hwtracing/coresight/coresight-trbe.c | 227 ++++++++++++++++---
 7 files changed, 341 insertions(+), 31 deletions(-)

-- 
2.24.1


^ permalink raw reply	[flat|nested] 42+ messages in thread

end of thread, other threads:[~2021-09-09  8:37 UTC | newest]

Thread overview: 42+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-28 13:52 [PATCH 00/10] arm64: Self-hosted trace related erratum workarouds Suzuki K Poulose
2021-07-28 13:52 ` [PATCH 01/10] coresight: trbe: Add infrastructure for Errata handling Suzuki K Poulose
2021-08-02  6:43   ` Anshuman Khandual
2021-09-07  9:04     ` Suzuki K Poulose
2021-09-09  2:55       ` Anshuman Khandual
2021-07-28 13:52 ` [PATCH 02/10] coresight: trbe: Add a helper to calculate the trace generated Suzuki K Poulose
2021-07-30 10:01   ` Anshuman Khandual
2021-07-28 13:52 ` [PATCH 03/10] coresight: trbe: Add a helper to pad a given buffer area Suzuki K Poulose
2021-07-30 10:05   ` Anshuman Khandual
2021-07-28 13:52 ` [PATCH 04/10] coresight: trbe: Decouple buffer base from the hardware base Suzuki K Poulose
2021-07-30 10:53   ` Anshuman Khandual
2021-07-28 13:52 ` [PATCH 05/10] coresight: trbe: Allow driver to choose a different alignment Suzuki K Poulose
2021-07-30 11:02   ` Anshuman Khandual
2021-07-30 14:29     ` Suzuki K Poulose
2021-07-28 13:52 ` [PATCH 06/10] arm64: Add Neoverse-N2, Cortex-A710 CPU part definition Suzuki K Poulose
2021-07-30 11:26   ` Anshuman Khandual
2021-07-30 14:31     ` Suzuki K Poulose
2021-08-02 11:21   ` Catalin Marinas
2021-08-02 11:21   ` Catalin Marinas
2021-07-28 13:52 ` [PATCH 07/10] arm64: Add erratum detection for TRBE overwrite in FILL mode Suzuki K Poulose
2021-08-02  7:44   ` Anshuman Khandual
2021-08-02 11:22   ` Catalin Marinas
2021-08-06 12:44   ` Linu Cherian
2021-09-07  9:10     ` Suzuki K Poulose
2021-07-28 13:52 ` [PATCH 08/10] coresight: trbe: Workaround TRBE errat " Suzuki K Poulose
2021-08-03 10:25   ` Anshuman Khandual
2021-09-07  9:58     ` Suzuki K Poulose
2021-09-09  4:21       ` Anshuman Khandual
2021-09-09  8:37         ` Suzuki K Poulose
2021-08-06 16:09   ` Linu Cherian
2021-09-07  9:18     ` Suzuki K Poulose
2021-07-28 13:52 ` [PATCH 09/10] arm64: Enable workaround for TRBE " Suzuki K Poulose
2021-08-02  9:34   ` Anshuman Khandual
2021-08-02 11:24   ` Catalin Marinas
2021-07-28 13:52 ` [PATCH 10/10] arm64: errata: Add workaround for TSB flush failures Suzuki K Poulose
2021-07-29  9:55   ` Marc Zyngier
2021-07-29 10:41     ` Suzuki K Poulose
2021-08-02  9:12       ` Anshuman Khandual
2021-08-02  9:35         ` Marc Zyngier
2021-08-03  3:51           ` Anshuman Khandual
2021-09-08 13:39             ` Suzuki K Poulose
2021-08-02 11:27   ` Catalin Marinas

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