From: Mathieu Poirier <mathieu.poirier@linaro.org>
To: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org,
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, will@kernel.org,
lcherian@marvell.com, coresight@lists.linaro.org
Subject: Re: [PATCH v2 00/17] arm64: Self-hosted trace related errata workarounds
Date: Tue, 5 Oct 2021 11:04:32 -0600 [thread overview]
Message-ID: <20211005170432.GB3311227@p14s> (raw)
In-Reply-To: <20210921134121.2423546-1-suzuki.poulose@arm.com>
On Tue, Sep 21, 2021 at 02:41:04PM +0100, Suzuki K Poulose wrote:
> 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(-)
Patches 04 to 11 and 13 to 17:
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
I am done reviewing this set.
Thanks,
Mathieu
>
> --
> 2.24.1
>
next prev parent reply other threads:[~2021-10-05 17:04 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-21 13:41 [PATCH v2 00/17] arm64: Self-hosted trace related errata workarounds Suzuki K Poulose
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 ` Mathieu Poirier [this message]
2021-10-08 7:32 ` [PATCH v2 00/17] arm64: Self-hosted trace related errata workarounds 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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