From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 114BEC433EF for ; Wed, 5 Jan 2022 05:06:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229938AbiAEFGO (ORCPT ); Wed, 5 Jan 2022 00:06:14 -0500 Received: from foss.arm.com ([217.140.110.172]:39148 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229895AbiAEFGO (ORCPT ); Wed, 5 Jan 2022 00:06:14 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id D753C1042; Tue, 4 Jan 2022 21:06:13 -0800 (PST) Received: from p8cg001049571a15.arm.com (unknown [10.163.72.138]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 369D03F66F; Tue, 4 Jan 2022 21:06:10 -0800 (PST) From: Anshuman Khandual To: linux-arm-kernel@lists.infradead.org Cc: Anshuman Khandual , Catalin Marinas , Will Deacon , Mathieu Poirier , Suzuki Poulose , coresight@lists.linaro.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/4] coresight: trbe: Workaround Cortex-A510 erratas Date: Wed, 5 Jan 2022 10:35:55 +0530 Message-Id: <1641359159-22726-1-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org 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 Cc: Will Deacon Cc: Mathieu Poirier Cc: Suzuki Poulose Cc: coresight@lists.linaro.org Cc: linux-doc@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@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