From patchwork Mon Sep 19 09:00:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yicong Yang X-Patchwork-Id: 12979797 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 A1ED3C6FA93 for ; Mon, 19 Sep 2022 09:03:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230142AbiISJDP (ORCPT ); Mon, 19 Sep 2022 05:03:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37856 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229966AbiISJDM (ORCPT ); Mon, 19 Sep 2022 05:03:12 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B7C8C222A1; Mon, 19 Sep 2022 02:03:10 -0700 (PDT) Received: from canpemm500009.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4MWJY11SLfzpSyL; Mon, 19 Sep 2022 17:00:21 +0800 (CST) Received: from localhost.localdomain (10.67.164.66) by canpemm500009.china.huawei.com (7.192.105.203) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Mon, 19 Sep 2022 17:03:07 +0800 From: Yicong Yang To: , , , , , , , , , , , CC: , , , , , , , , , , , , , Subject: [PATCH v13 1/3] perf tool: arm: Refactor event list iteration in auxtrace_record__init() Date: Mon, 19 Sep 2022 17:00:43 +0800 Message-ID: <20220919090045.6778-2-yangyicong@huawei.com> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20220919090045.6778-1-yangyicong@huawei.com> References: <20220919090045.6778-1-yangyicong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.164.66] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To canpemm500009.china.huawei.com (7.192.105.203) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Qi Liu Add find_pmu_for_event() and use to simplify logic in auxtrace_record_init(). find_pmu_for_event() will be reused in subsequent patches. Reviewed-by: Leo Yan Reviewed-by: Jonathan Cameron Signed-off-by: Qi Liu Signed-off-by: Yicong Yang Reviewed-by: John Garry --- tools/perf/arch/arm/util/auxtrace.c | 53 ++++++++++++++++++----------- 1 file changed, 34 insertions(+), 19 deletions(-) diff --git a/tools/perf/arch/arm/util/auxtrace.c b/tools/perf/arch/arm/util/auxtrace.c index 5fc6a2a3dbc5..384c7cfda0fd 100644 --- a/tools/perf/arch/arm/util/auxtrace.c +++ b/tools/perf/arch/arm/util/auxtrace.c @@ -50,16 +50,32 @@ static struct perf_pmu **find_all_arm_spe_pmus(int *nr_spes, int *err) return arm_spe_pmus; } +static struct perf_pmu *find_pmu_for_event(struct perf_pmu **pmus, + int pmu_nr, struct evsel *evsel) +{ + int i; + + if (!pmus) + return NULL; + + for (i = 0; i < pmu_nr; i++) { + if (evsel->core.attr.type == pmus[i]->type) + return pmus[i]; + } + + return NULL; +} + struct auxtrace_record *auxtrace_record__init(struct evlist *evlist, int *err) { - struct perf_pmu *cs_etm_pmu; + struct perf_pmu *cs_etm_pmu = NULL; + struct perf_pmu **arm_spe_pmus = NULL; struct evsel *evsel; - bool found_etm = false; + struct perf_pmu *found_etm = NULL; struct perf_pmu *found_spe = NULL; - struct perf_pmu **arm_spe_pmus = NULL; + int auxtrace_event_cnt = 0; int nr_spes = 0; - int i = 0; if (!evlist) return NULL; @@ -68,24 +84,23 @@ struct auxtrace_record arm_spe_pmus = find_all_arm_spe_pmus(&nr_spes, err); evlist__for_each_entry(evlist, evsel) { - if (cs_etm_pmu && - evsel->core.attr.type == cs_etm_pmu->type) - found_etm = true; - - if (!nr_spes || found_spe) - continue; - - for (i = 0; i < nr_spes; i++) { - if (evsel->core.attr.type == arm_spe_pmus[i]->type) { - found_spe = arm_spe_pmus[i]; - break; - } - } + if (cs_etm_pmu && !found_etm) + found_etm = find_pmu_for_event(&cs_etm_pmu, 1, evsel); + + if (arm_spe_pmus && !found_spe) + found_spe = find_pmu_for_event(arm_spe_pmus, nr_spes, evsel); } + free(arm_spe_pmus); - if (found_etm && found_spe) { - pr_err("Concurrent ARM Coresight ETM and SPE operation not currently supported\n"); + if (found_etm) + auxtrace_event_cnt++; + + if (found_spe) + auxtrace_event_cnt++; + + if (auxtrace_event_cnt > 1) { + pr_err("Concurrent AUX trace operation not currently supported\n"); *err = -EOPNOTSUPP; return NULL; }