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From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, maz@kernel.org,
	catalin.marinas@arm.com, mark.rutland@arm.com,
	james.morse@arm.com, anshuman.khandual@arm.com,
	leo.yan@linaro.org, mike.leach@linaro.org,
	mathieu.poirier@linaro.org, will@kernel.org,
	lcherian@marvell.com, coresight@lists.linaro.org,
	Suzuki K Poulose <suzuki.poulose@arm.com>
Subject: [PATCH v2 00/17] arm64: Self-hosted trace related errata workarounds
Date: Tue, 21 Sep 2021 14:41:04 +0100	[thread overview]
Message-ID: <20210921134121.2423546-1-suzuki.poulose@arm.com> (raw)

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	#211985

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

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

 * TRBE may write to out-of-range address
   - Arm Neoverse-N2	#2253138
   - Cortex-A710	#2224489

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/20210914102641.1852544-1-suzuki.poulose@arm.com
 [1] git@git.gitlab.arm.com:linux-arm/linux-skp.git coresight/errata/trbe-tsb-n2-a710/v2

Changes since v1:
 https://lkml.kernel.org/r/20210728135217.591173-1-suzuki.poulose@arm.com
 - Added a fix to the TRBE driver handling of sink_specific data
 - Added more description and ASCII art for overwrite in FILL mode
   work around 
 - Added another TRBE erratum to the list.
  "TRBE may write to out-of-range address"
  Patches from 12-17
 - Added comment to list the expectations around TSB erratum workaround.


Suzuki K Poulose (17):
  coresight: trbe: Fix incorrect access of the sink specific data
  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 errata overwrite in FILL mode
  arm64: Enable workaround for TRBE overwrite in FILL mode
  arm64: errata: Add workaround for TSB flush failures
  coresight: trbe: Add a helper to fetch cpudata from perf handle
  coresight: trbe: Add a helper to determine the minimum buffer size
  coresight: trbe: Make sure we have enough space
  arm64: Add erratum detection for TRBE write to out-of-range
  coresight: trbe: Work around write to out of range
  arm64: Advertise TRBE erratum workaround for write to out-of-range address

 Documentation/arm64/silicon-errata.rst       |  12 +
 arch/arm64/Kconfig                           | 109 ++++++
 arch/arm64/include/asm/barrier.h             |  16 +-
 arch/arm64/include/asm/cputype.h             |   4 +
 arch/arm64/kernel/cpu_errata.c               |  64 ++++
 arch/arm64/tools/cpucaps                     |   3 +
 drivers/hwtracing/coresight/coresight-trbe.c | 339 +++++++++++++++++--
 7 files changed, 510 insertions(+), 37 deletions(-)

-- 
2.24.1


             reply	other threads:[~2021-09-21 13:41 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-21 13:41 Suzuki K Poulose [this message]
2021-09-21 13:41 ` [PATCH v2 01/17] coresight: trbe: Fix incorrect access of the sink specific data Suzuki K Poulose
2021-09-22  5:41   ` Anshuman Khandual
2021-09-30 17:57   ` Mathieu Poirier
2021-09-21 13:41 ` [PATCH v2 02/17] coresight: trbe: Add infrastructure for Errata handling Suzuki K Poulose
2021-09-22  6:47   ` Anshuman Khandual
2021-10-05 16:46   ` Mathieu Poirier
2021-09-21 13:41 ` [PATCH v2 03/17] coresight: trbe: Add a helper to calculate the trace generated Suzuki K Poulose
2021-09-30 17:54   ` Mathieu Poirier
2021-10-01  8:36     ` Suzuki K Poulose
2021-10-01 15:15       ` Mathieu Poirier
2021-10-01 15:22         ` Suzuki K Poulose
2021-09-21 13:41 ` [PATCH v2 04/17] coresight: trbe: Add a helper to pad a given buffer area Suzuki K Poulose
2021-09-21 13:41 ` [PATCH v2 05/17] coresight: trbe: Decouple buffer base from the hardware base Suzuki K Poulose
2021-09-21 13:41 ` [PATCH v2 06/17] coresight: trbe: Allow driver to choose a different alignment Suzuki K Poulose
2021-09-21 13:41 ` [PATCH v2 07/17] arm64: Add Neoverse-N2, Cortex-A710 CPU part definition Suzuki K Poulose
2021-09-22  6:57   ` Anshuman Khandual
2021-09-21 13:41 ` [PATCH v2 08/17] arm64: Add erratum detection for TRBE overwrite in FILL mode Suzuki K Poulose
2021-09-21 13:41 ` [PATCH v2 09/17] coresight: trbe: Workaround TRBE errata " Suzuki K Poulose
2021-09-23  6:13   ` Anshuman Khandual
2021-09-28 10:40     ` Suzuki K Poulose
2021-10-01  4:21       ` Anshuman Khandual
2021-10-01 17:15   ` Mathieu Poirier
2021-10-04  8:46     ` Suzuki K Poulose
2021-10-04 16:47       ` Mathieu Poirier
2021-09-21 13:41 ` [PATCH v2 10/17] arm64: Enable workaround for TRBE " Suzuki K Poulose
2021-09-22  7:23   ` Anshuman Khandual
2021-09-22  8:11     ` Suzuki K Poulose
2021-10-01  4:35       ` Anshuman Khandual
2021-10-07 16:09   ` Catalin Marinas
2021-09-21 13:41 ` [PATCH v2 11/17] arm64: errata: Add workaround for TSB flush failures Suzuki K Poulose
2021-09-22  7:39   ` Anshuman Khandual
2021-09-22 12:03     ` Suzuki K Poulose
2021-10-01  4:38       ` Anshuman Khandual
2021-10-07 16:10   ` Catalin Marinas
2021-09-21 13:41 ` [PATCH v2 12/17] coresight: trbe: Add a helper to fetch cpudata from perf handle Suzuki K Poulose
2021-09-22  7:59   ` Anshuman Khandual
2021-10-04 17:42   ` Mathieu Poirier
2021-10-05 22:35     ` Suzuki K Poulose
2021-10-06 17:15       ` Mathieu Poirier
2021-10-07  9:18         ` Suzuki K Poulose
2021-09-21 13:41 ` [PATCH v2 13/17] coresight: trbe: Add a helper to determine the minimum buffer size Suzuki K Poulose
2021-09-22  9:51   ` Anshuman Khandual
2021-09-21 13:41 ` [PATCH v2 14/17] coresight: trbe: Make sure we have enough space Suzuki K Poulose
2021-09-22  9:58   ` Anshuman Khandual
2021-09-22 10:16     ` Suzuki K Poulose
2021-10-01  4:40       ` Anshuman Khandual
2021-09-21 13:41 ` [PATCH v2 15/17] arm64: Add erratum detection for TRBE write to out-of-range Suzuki K Poulose
2021-09-22 10:59   ` Anshuman Khandual
2021-10-07 16:10   ` Catalin Marinas
2021-09-21 13:41 ` [PATCH v2 16/17] coresight: trbe: Work around write to out of range Suzuki K Poulose
2021-09-23  3:15   ` Anshuman Khandual
2021-09-28 10:32     ` Suzuki K Poulose
2021-10-01  4:56       ` Anshuman Khandual
2021-09-21 13:41 ` [PATCH v2 17/17] arm64: Advertise TRBE erratum workaround for write to out-of-range address Suzuki K Poulose
2021-09-22 11:03   ` Anshuman Khandual
2021-10-07 16:11   ` Catalin Marinas
2021-10-05 17:04 ` [PATCH v2 00/17] arm64: Self-hosted trace related errata workarounds Mathieu Poirier
2021-10-08  7:32 ` Will Deacon
2021-10-08  9:25   ` Suzuki K Poulose
2021-10-08  9:52     ` Will Deacon
2021-10-08  9:57       ` Suzuki K Poulose

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