From patchwork Mon Jun 12 17:16:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robin Murphy X-Patchwork-Id: 10652 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:994d:0:b0:3d9:f83d:47d9 with SMTP id k13csp24936vqr; Mon, 12 Jun 2023 10:30:30 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ5vHeBGG8W9UN6HYeruJFcfT/TXDU3StdkO/wXInUlpCPWOrvK5XdS6bu1Q1NAAiO3yc8a/ X-Received: by 2002:aca:6502:0:b0:399:dd46:d561 with SMTP id m2-20020aca6502000000b00399dd46d561mr4676760oim.48.1686591030455; Mon, 12 Jun 2023 10:30:30 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1686591030; cv=none; d=google.com; s=arc-20160816; b=gNZf2U04JIR+oC2zEM1h9bPcS0ZFVEk9Te6x2E2LHcr/Yw6wcuEAAyuFdxzBlr/vzY vio3F++CdzWTjyvToZ1O3EvG9NaC4VStdMvSgm7OofPA8mM65mAGT7j+cC8fHCbOsRcs /LZbnUREqHxOEa86O65QmJbkkhNc8hm1xMd94+GNZ9aVB3iwXE2NRz04ivsnJXlmPqoP nigCcPIswe12DA1dEz3AT0WhC5xCEGHFbRKTrmDdLlNL4tBcNv3COGT+lltVMnMWgC2c B/P6iLSM8mnUyd8heRKTGQ5Auz0/Ivfb0oQ6zUvHNT7kwNQCGNmiWVQyEfUHnroaVeou FNRw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=9MOeUtALyriMdDn8nNXOaOPPM4+ysry4M7CUV1y2lBA=; b=fjiVQ1yZpL6mmynrYvg3RZCva/+brizoY1yMhuLbeO2vHg4J/Ek3MHb/vmd0+pSSJF STTMCuV1vU3TcmhPrSChA1+RYGLtgprmQwWhUZcpETjGTIPj7RAvLEVwe/n6oaTQ9CBz iH9GIjOCVTAiDhBHPB4xtstgLJ6AxicDBKm+pTRDOIs2+mTgazodEQlkc3ibJkwYx78y Kh7qprwQtG7w16dlhUbxbNTCHN7qvBGma9DvJeY2Ex5vI2wMQNbIop1Vn7rJN0oubNtd tfWB0RaMb3q0/WFRUQee2Vyu8dQIio8h/Akp5Gwtux8OKL/RyFxyUmA9cEXIAgdhXxu0 BtKg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=arm.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id r12-20020a17090a2e8c00b002590f26818asi9044243pjd.0.2023.06.12.10.30.09; Mon, 12 Jun 2023 10:30:30 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=arm.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230331AbjFLRQs (ORCPT + 99 others); Mon, 12 Jun 2023 13:16:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58948 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234467AbjFLRQp (ORCPT ); Mon, 12 Jun 2023 13:16:45 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id A264F10F4 for ; Mon, 12 Jun 2023 10:16:40 -0700 (PDT) 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 6712E1FB; Mon, 12 Jun 2023 10:17:25 -0700 (PDT) Received: from e121345-lin.cambridge.arm.com (e121345-lin.cambridge.arm.com [10.1.196.40]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 519EE3F5A1; Mon, 12 Jun 2023 10:16:39 -0700 (PDT) From: Robin Murphy To: will@kernel.org Cc: mark.rutland@arm.com, ilkka@os.amperecomputing.com, john.g.garry@oracle.com, renyu.zj@linux.alibaba.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/2] perf/arm-cmn: Identifier support Date: Mon, 12 Jun 2023 18:16:31 +0100 Message-Id: X-Mailer: git-send-email 2.39.2.101.g768bb238c484.dirty MIME-Version: 1.0 X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1768518876411625833?= X-GMAIL-MSGID: =?utf-8?q?1768518876411625833?= Hi all, Following on from the disussion on Jing's proposal[1], I've had confirmation that we do actually have a reliable hardware identifier, so this mini-series does a bit of refactoring to wire that up and then expose a sysfs identifier based on it. Thanks, Robin. [1] https://lore.kernel.org/r/1685438374-33287-1-git-send-email-renyu.zj@linux.alibaba.com/ Robin Murphy (2): perf/arm-cmn: Revamp model detection perf/arm-cmn: Add sysfs identifier drivers/perf/arm-cmn.c | 165 +++++++++++++++++++++++++++-------------- 1 file changed, 109 insertions(+), 56 deletions(-)