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 17/17] arm64: Advertise TRBE erratum workaround for write to out-of-range address Date: Tue, 21 Sep 2021 14:41:21 +0100 [thread overview] Message-ID: <20210921134121.2423546-18-suzuki.poulose@arm.com> (raw) In-Reply-To: <20210921134121.2423546-1-suzuki.poulose@arm.com> Add Kconfig entries for the errata workarounds for TRBE writing to an out-of-range address. Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Leo Yan <leo.yan@linaro.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> --- Documentation/arm64/silicon-errata.rst | 4 +++ arch/arm64/Kconfig | 39 ++++++++++++++++++++++++++ 2 files changed, 43 insertions(+) diff --git a/Documentation/arm64/silicon-errata.rst b/Documentation/arm64/silicon-errata.rst index 569a92411dcd..5342e895fb60 100644 --- a/Documentation/arm64/silicon-errata.rst +++ b/Documentation/arm64/silicon-errata.rst @@ -96,6 +96,8 @@ stable kernels. +----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A710 | #2054223 | ARM64_ERRATUM_2054223 | +----------------+-----------------+-----------------+-----------------------------+ +| ARM | Cortex-A710 | #2224489 | ARM64_ERRATUM_2224489 | ++----------------+-----------------+-----------------+-----------------------------+ | ARM | Neoverse-N1 | #1188873,1418040| ARM64_ERRATUM_1418040 | +----------------+-----------------+-----------------+-----------------------------+ | ARM | Neoverse-N1 | #1349291 | N/A | @@ -106,6 +108,8 @@ stable kernels. +----------------+-----------------+-----------------+-----------------------------+ | ARM | Neoverse-N2 | #2067961 | ARM64_ERRATUM_2067961 | +----------------+-----------------+-----------------+-----------------------------+ +| ARM | Neoverse-N2 | #2253138 | ARM64_ERRATUM_2253138 | ++----------------+-----------------+-----------------+-----------------------------+ | ARM | MMU-500 | #841119,826419 | N/A | +----------------+-----------------+-----------------+-----------------------------+ +----------------+-----------------+-----------------+-----------------------------+ diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 0764774e12bb..611ae02aabbd 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -736,6 +736,45 @@ config ARM64_ERRATUM_2067961 If unsure, say Y. +config ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE + bool + +config ARM64_ERRATUM_2253138 + bool "Neoverse-N2: 2253138: workaround TRBE writing to address out-of-range" + depends on CORESIGHT_TRBE + default y + select ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE + help + This option adds the workaround for ARM Neoverse-N2 erratum 2253138. + + Affected Neoverse-N2 cores might write to an out-of-range address, not reserved + for TRBE. Under some conditions, the TRBE might generate a write to the next + virtually addressed page following the last page of the TRBE address space + (i.e, the TRBLIMITR_EL1.LIMIT), instead of wrapping around to the base. + + We work around this in the driver by, always making sure that there is a + page beyond the TRBLIMITR_EL1.LIMIT, within the space allowed for the TRBE. + + If unsure, say Y. + +config ARM64_ERRATUM_2224489 + bool "Cortex-A710: 2224489: workaround TRBE writing to address out-of-range" + depends on CORESIGHT_TRBE + default y + select ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE + help + This option adds the workaround for ARM Cortex-A710 erratum 2224489. + + Affected Cortex-A710 cores might write to an out-of-range address, not reserved + for TRBE. Under some conditions, the TRBE might generate a write to the next + virtually addressed page following the last page of the TRBE address space + (i.e, the TRBLIMITR_EL1.LIMIT), instead of wrapping around to the base. + + We work around this in the driver by, always making sure that there is a + page beyond the TRBLIMITR_EL1.LIMIT, within the space allowed for the TRBE. + + If unsure, say Y. + config CAVIUM_ERRATUM_22375 bool "Cavium erratum 22375, 24313" default y -- 2.24.1
WARNING: multiple messages have this Message-ID (diff)
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 17/17] arm64: Advertise TRBE erratum workaround for write to out-of-range address Date: Tue, 21 Sep 2021 14:41:21 +0100 [thread overview] Message-ID: <20210921134121.2423546-18-suzuki.poulose@arm.com> (raw) In-Reply-To: <20210921134121.2423546-1-suzuki.poulose@arm.com> Add Kconfig entries for the errata workarounds for TRBE writing to an out-of-range address. Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Leo Yan <leo.yan@linaro.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> --- Documentation/arm64/silicon-errata.rst | 4 +++ arch/arm64/Kconfig | 39 ++++++++++++++++++++++++++ 2 files changed, 43 insertions(+) diff --git a/Documentation/arm64/silicon-errata.rst b/Documentation/arm64/silicon-errata.rst index 569a92411dcd..5342e895fb60 100644 --- a/Documentation/arm64/silicon-errata.rst +++ b/Documentation/arm64/silicon-errata.rst @@ -96,6 +96,8 @@ stable kernels. +----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A710 | #2054223 | ARM64_ERRATUM_2054223 | +----------------+-----------------+-----------------+-----------------------------+ +| ARM | Cortex-A710 | #2224489 | ARM64_ERRATUM_2224489 | ++----------------+-----------------+-----------------+-----------------------------+ | ARM | Neoverse-N1 | #1188873,1418040| ARM64_ERRATUM_1418040 | +----------------+-----------------+-----------------+-----------------------------+ | ARM | Neoverse-N1 | #1349291 | N/A | @@ -106,6 +108,8 @@ stable kernels. +----------------+-----------------+-----------------+-----------------------------+ | ARM | Neoverse-N2 | #2067961 | ARM64_ERRATUM_2067961 | +----------------+-----------------+-----------------+-----------------------------+ +| ARM | Neoverse-N2 | #2253138 | ARM64_ERRATUM_2253138 | ++----------------+-----------------+-----------------+-----------------------------+ | ARM | MMU-500 | #841119,826419 | N/A | +----------------+-----------------+-----------------+-----------------------------+ +----------------+-----------------+-----------------+-----------------------------+ diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 0764774e12bb..611ae02aabbd 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -736,6 +736,45 @@ config ARM64_ERRATUM_2067961 If unsure, say Y. +config ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE + bool + +config ARM64_ERRATUM_2253138 + bool "Neoverse-N2: 2253138: workaround TRBE writing to address out-of-range" + depends on CORESIGHT_TRBE + default y + select ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE + help + This option adds the workaround for ARM Neoverse-N2 erratum 2253138. + + Affected Neoverse-N2 cores might write to an out-of-range address, not reserved + for TRBE. Under some conditions, the TRBE might generate a write to the next + virtually addressed page following the last page of the TRBE address space + (i.e, the TRBLIMITR_EL1.LIMIT), instead of wrapping around to the base. + + We work around this in the driver by, always making sure that there is a + page beyond the TRBLIMITR_EL1.LIMIT, within the space allowed for the TRBE. + + If unsure, say Y. + +config ARM64_ERRATUM_2224489 + bool "Cortex-A710: 2224489: workaround TRBE writing to address out-of-range" + depends on CORESIGHT_TRBE + default y + select ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE + help + This option adds the workaround for ARM Cortex-A710 erratum 2224489. + + Affected Cortex-A710 cores might write to an out-of-range address, not reserved + for TRBE. Under some conditions, the TRBE might generate a write to the next + virtually addressed page following the last page of the TRBE address space + (i.e, the TRBLIMITR_EL1.LIMIT), instead of wrapping around to the base. + + We work around this in the driver by, always making sure that there is a + page beyond the TRBLIMITR_EL1.LIMIT, within the space allowed for the TRBE. + + If unsure, say Y. + config CAVIUM_ERRATUM_22375 bool "Cavium erratum 22375, 24313" default y -- 2.24.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-09-21 13:42 UTC|newest] Thread overview: 124+ 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 ` 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 2021-09-21 13:41 ` Suzuki K Poulose 2021-09-22 5:41 ` Anshuman Khandual 2021-09-22 5:41 ` Anshuman Khandual 2021-09-30 17:57 ` Mathieu Poirier 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 2021-09-21 13:41 ` Suzuki K Poulose 2021-09-22 6:47 ` Anshuman Khandual 2021-09-22 6:47 ` Anshuman Khandual 2021-10-05 16:46 ` Mathieu Poirier 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 2021-09-21 13:41 ` Suzuki K Poulose 2021-09-30 17:54 ` Mathieu Poirier 2021-09-30 17:54 ` Mathieu Poirier 2021-10-01 8:36 ` Suzuki K Poulose 2021-10-01 8:36 ` Suzuki K Poulose 2021-10-01 15:15 ` Mathieu Poirier 2021-10-01 15:15 ` Mathieu Poirier 2021-10-01 15:22 ` Suzuki K Poulose 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 ` 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 ` 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 ` Suzuki K Poulose 2021-09-21 13:41 ` [PATCH v2 07/17] arm64: Add Neoverse-N2, Cortex-A710 CPU part definition Suzuki K Poulose 2021-09-21 13:41 ` Suzuki K Poulose 2021-09-22 6:57 ` Anshuman Khandual 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 ` Suzuki K Poulose 2021-09-21 13:41 ` [PATCH v2 09/17] coresight: trbe: Workaround TRBE errata " Suzuki K Poulose 2021-09-21 13:41 ` Suzuki K Poulose 2021-09-23 6:13 ` Anshuman Khandual 2021-09-23 6:13 ` Anshuman Khandual 2021-09-28 10:40 ` Suzuki K Poulose 2021-09-28 10:40 ` Suzuki K Poulose 2021-10-01 4:21 ` Anshuman Khandual 2021-10-01 4:21 ` Anshuman Khandual 2021-10-01 17:15 ` Mathieu Poirier 2021-10-01 17:15 ` Mathieu Poirier 2021-10-04 8:46 ` Suzuki K Poulose 2021-10-04 8:46 ` Suzuki K Poulose 2021-10-04 16:47 ` Mathieu Poirier 2021-10-04 16:47 ` Mathieu Poirier 2021-09-21 13:41 ` [PATCH v2 10/17] arm64: Enable workaround for TRBE " Suzuki K Poulose 2021-09-21 13:41 ` Suzuki K Poulose 2021-09-22 7:23 ` Anshuman Khandual 2021-09-22 7:23 ` Anshuman Khandual 2021-09-22 8:11 ` Suzuki K Poulose 2021-09-22 8:11 ` Suzuki K Poulose 2021-10-01 4:35 ` Anshuman Khandual 2021-10-01 4:35 ` Anshuman Khandual 2021-10-07 16:09 ` Catalin Marinas 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 2021-09-21 13:41 ` Suzuki K Poulose 2021-09-22 7:39 ` Anshuman Khandual 2021-09-22 7:39 ` Anshuman Khandual 2021-09-22 12:03 ` Suzuki K Poulose 2021-09-22 12:03 ` Suzuki K Poulose 2021-10-01 4:38 ` Anshuman Khandual 2021-10-01 4:38 ` Anshuman Khandual 2021-10-07 16:10 ` Catalin Marinas 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 2021-09-21 13:41 ` Suzuki K Poulose 2021-09-22 7:59 ` Anshuman Khandual 2021-09-22 7:59 ` Anshuman Khandual 2021-10-04 17:42 ` Mathieu Poirier 2021-10-04 17:42 ` Mathieu Poirier 2021-10-05 22:35 ` Suzuki K Poulose 2021-10-05 22:35 ` Suzuki K Poulose 2021-10-06 17:15 ` Mathieu Poirier 2021-10-06 17:15 ` Mathieu Poirier 2021-10-07 9:18 ` Suzuki K Poulose 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 2021-09-21 13:41 ` Suzuki K Poulose 2021-09-22 9:51 ` Anshuman Khandual 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 2021-09-21 13:41 ` Suzuki K Poulose 2021-09-22 9:58 ` Anshuman Khandual 2021-09-22 9:58 ` Anshuman Khandual 2021-09-22 10:16 ` Suzuki K Poulose 2021-09-22 10:16 ` Suzuki K Poulose 2021-10-01 4:40 ` Anshuman Khandual 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 2021-09-21 13:41 ` Suzuki K Poulose 2021-09-22 10:59 ` Anshuman Khandual 2021-09-22 10:59 ` Anshuman Khandual 2021-10-07 16:10 ` Catalin Marinas 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 2021-09-21 13:41 ` Suzuki K Poulose 2021-09-23 3:15 ` Anshuman Khandual 2021-09-23 3:15 ` Anshuman Khandual 2021-09-28 10:32 ` Suzuki K Poulose 2021-09-28 10:32 ` Suzuki K Poulose 2021-10-01 4:56 ` Anshuman Khandual 2021-10-01 4:56 ` Anshuman Khandual 2021-09-21 13:41 ` Suzuki K Poulose [this message] 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 2021-09-22 11:03 ` Anshuman Khandual 2021-10-07 16:11 ` Catalin Marinas 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 2021-10-05 17:04 ` Mathieu Poirier 2021-10-08 7:32 ` Will Deacon 2021-10-08 7:32 ` Will Deacon 2021-10-08 9:25 ` Suzuki K Poulose 2021-10-08 9:25 ` Suzuki K Poulose 2021-10-08 9:52 ` Will Deacon 2021-10-08 9:52 ` Will Deacon 2021-10-08 9:57 ` Suzuki K Poulose 2021-10-08 9:57 ` Suzuki K Poulose
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