From patchwork Tue Jun 20 07:12:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jing Zhang X-Patchwork-Id: 110272 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:994d:0:b0:3d9:f83d:47d9 with SMTP id k13csp3483609vqr; Tue, 20 Jun 2023 00:19:09 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ6k0hsjVTnnQHWHjfAKa5lKUtRQjoHem5tmBr9mvzO7oBGUmyInBw9dEj6Qy7o5PBADU6wX X-Received: by 2002:a17:902:e88b:b0:1b0:3d03:4179 with SMTP id w11-20020a170902e88b00b001b03d034179mr14956441plg.6.1687245549256; Tue, 20 Jun 2023 00:19:09 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1687245549; cv=none; d=google.com; s=arc-20160816; b=q38atM7pNPusXORhltwA93McJpR5Ysq/0eWnEIBI3C2lqAbjURNiWduwlQFLAGOBjB uVCW+ULMRPZmbMmGt4OuEU4166xKFENFPluY0fVaBS6wb9+1NN1GVzvcyEFBYtBpPaym lVBYSlQYggImWks6h3qjgLppYJXmZtzBweso+WmXQx85DUpOoLGWEiX0BVLziSHBhhSY G98sD3RZVT3Zk/QLqFfZZ0nl2Jq4zn4y3RosmBkGYyW5NqvkDHIioQU9e0E12OJSEFie kHArE2GjP1wclzBZMhlqxJ++2P/M839vTdwRMNrQuIc0eQvVxjECaaUsCuwW/Wu5WyoB kT/A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:references:in-reply-to:message-id:date:subject :cc:to:from; bh=lnjnv4qTxRNFt9gNEHEzj1zaBJU8CBAlaUWeYWndiro=; b=R3rCmP2ZK9owI0huXcl1673ojgtqw7WVz4vnqzT32DW6dQt13FPl4+CkjyiaJUVBy6 qNMS5vQdErrWWDGtKFCaOVIjVV+grIPFRaPRw7MOCKUg8ETtpqU/sG/Gq+BhhtqfQ6Xz hR3QDCZS0Y/Z/n5hu8iPJZAYG7qUo+kxKu7zmMK0ybML8X+KIV1OpTwVhPs3psgmeviD 8XZ20vzEEvdEUJEpD/8SUs5qVKXHRAr4Fh59C6Nkj6O+CFtBxybErCiUnbUCIfwe4nvy V3Arf5YGwCE0tL/ITMEOkab9bUYlU4QkMh8+8Gwr+fZRcOl2joAncAVPRUgoLIYapSf7 by+g== 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=alibaba.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id j5-20020a170903024500b001b5585f945asi1455497plh.352.2023.06.20.00.18.56; Tue, 20 Jun 2023 00:19:09 -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=alibaba.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231231AbjFTHMz (ORCPT + 99 others); Tue, 20 Jun 2023 03:12:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56530 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230499AbjFTHMv (ORCPT ); Tue, 20 Jun 2023 03:12:51 -0400 Received: from out30-132.freemail.mail.aliyun.com (out30-132.freemail.mail.aliyun.com [115.124.30.132]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 02415EA; Tue, 20 Jun 2023 00:12:49 -0700 (PDT) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R681e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018045168;MF=renyu.zj@linux.alibaba.com;NM=1;PH=DS;RN=21;SR=0;TI=SMTPD_---0VlamlZa_1687245164; Received: from srmbuffer011165236051.sqa.net(mailfrom:renyu.zj@linux.alibaba.com fp:SMTPD_---0VlamlZa_1687245164) by smtp.aliyun-inc.com; Tue, 20 Jun 2023 15:12:45 +0800 From: Jing Zhang To: Will Deacon , Mark Rutland , Jonathan Corbet , John Garry , Shuai Xue , Ian Rogers Cc: Robin Murphy , James Clark , Mike Leach , Leo Yan , Ilkka Koskinen , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Adrian Hunter , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-perf-users@vger.kernel.org, linux-doc@vger.kernel.org, Zhuo Song , Jing Zhang Subject: [PATCH v4 1/4] driver/perf: Add identifier sysfs file for Yitian 710 DDR Date: Tue, 20 Jun 2023 15:12:33 +0800 Message-Id: <1687245156-61215-2-git-send-email-renyu.zj@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1687245156-61215-1-git-send-email-renyu.zj@linux.alibaba.com> References: <1687245156-61215-1-git-send-email-renyu.zj@linux.alibaba.com> X-Spam-Status: No, score=-9.9 required=5.0 tests=BAYES_00, ENV_AND_HDR_SPF_MATCH,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE,UNPARSEABLE_RELAY,USER_IN_DEF_SPF_WL 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?1769205189040044396?= X-GMAIL-MSGID: =?utf-8?q?1769205189040044396?= To allow userspace to identify the specific implementation of the device, add an "identifier" sysfs file. The perf tool can match the Yitian 710 DDR metric through the identifier. Signed-off-by: Jing Zhang Acked-by: Ian Rogers Reviewed-by: Shuai Xue --- drivers/perf/alibaba_uncore_drw_pmu.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/perf/alibaba_uncore_drw_pmu.c b/drivers/perf/alibaba_uncore_drw_pmu.c index a7689fe..fe075fd 100644 --- a/drivers/perf/alibaba_uncore_drw_pmu.c +++ b/drivers/perf/alibaba_uncore_drw_pmu.c @@ -236,10 +236,37 @@ static ssize_t ali_drw_pmu_cpumask_show(struct device *dev, .attrs = ali_drw_pmu_cpumask_attrs, }; +static ssize_t ali_drw_pmu_identifier_show(struct device *dev, + struct device_attribute *attr, + char *page) +{ + return sysfs_emit(page, "%s\n", "ali_drw_pmu"); +} + +static umode_t ali_drw_pmu_identifier_attr_visible(struct kobject *kobj, + struct attribute *attr, int n) +{ + return attr->mode; +} + +static struct device_attribute ali_drw_pmu_identifier_attr = + __ATTR(identifier, 0444, ali_drw_pmu_identifier_show, NULL); + +static struct attribute *ali_drw_pmu_identifier_attrs[] = { + &ali_drw_pmu_identifier_attr.attr, + NULL +}; + +static const struct attribute_group ali_drw_pmu_identifier_attr_group = { + .attrs = ali_drw_pmu_identifier_attrs, + .is_visible = ali_drw_pmu_identifier_attr_visible +}; + static const struct attribute_group *ali_drw_pmu_attr_groups[] = { &ali_drw_pmu_events_attr_group, &ali_drw_pmu_cpumask_attr_group, &ali_drw_pmu_format_group, + &ali_drw_pmu_identifier_attr_group, NULL, };