From nobody Fri Dec 19 21:48:26 2025 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 61824C7618E for ; Sat, 29 Apr 2023 05:51:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230320AbjD2FvT (ORCPT ); Sat, 29 Apr 2023 01:51:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55254 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229918AbjD2FvL (ORCPT ); Sat, 29 Apr 2023 01:51:11 -0400 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 77C0D2D48 for ; Fri, 28 Apr 2023 22:50:44 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id 3f1490d57ef6-b8bf9f09340so939963276.2 for ; Fri, 28 Apr 2023 22:50:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1682747443; x=1685339443; h=cc:to:from:subject:references:mime-version:message-id:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=OKlYtbEHxsaZvta2/vy5tQOz2M7WlkKnPlSTO/BorIw=; b=uuFUpxPZ6kMjj+DLLyWo8oIC3OuXcqqX67XcSn/f7MQnR1b+6YnHJ9l5iQOyRHvgqr 8WuBXEbU9A80xuA8pkxwn88JRfn3l7ykl5XKigHQasQZiycuVgKuw9to7PvLwV9S4JNR FzTTFbdjQWTpWr3Cc6RFxqVGtXvAXzEJfJsfSacIMkaCKsGkAzy2W6HBjBYxGcsHIWuN 8aKC0P8MFVgTWEhe2bNTpwAcyFsAtcxgQx1tG16m35P457jSoUjXv4QS4shwyp1gKLA7 Qfksl3J5m96nAXaE+DY26gmm8VclCQ3MdqwcYR1iAjMhXX1YR/tNXJP3OSRXW6Q+SW7H USoQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1682747443; x=1685339443; h=cc:to:from:subject:references:mime-version:message-id:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=OKlYtbEHxsaZvta2/vy5tQOz2M7WlkKnPlSTO/BorIw=; b=ZIAb9mSN7d7ff4dPXivJVy/2egKO38aa8XoHexmdMxx9WESHFv987sloR7zet7mqiG 4MyleSYoP2G/at/mj5gvl06LyIPGkK7zxeGWhedMPgebVmjmpzvsy51io1C/ganyDMq3 c3enFo6DppIkZJLnRhJjxlx0tMzLxvpME13s6ZmjaOyUe3SC1QkKhyXyIyHFerGNg7rD hlfszR+uFoCD3oMJY1Fg2pACpzl3grRFlx7aHuub4Ja+Ca8Krnfu1UWfj2tFftxAIHL1 2dxtxW4f5JFw07LvxKMrEXzJhmSZPWDrzOs+vrH1HbJm7wAI/kVLu4ZnPIeWxVVeukBP oy4g== X-Gm-Message-State: AC+VfDxZrXBuAw9Hcfjhfn8r/KZRQyMogl9tRNBhRjtYxXlLjNlLJy1F 4FJ5095nXfvLQSdGQt56cdvAuOTi7bRW X-Google-Smtp-Source: ACHHUZ5oK/0Rx+UrawbenIsLixZHsS4dI3F2WC3MKzw5BaIbbNjKcs+ghKwXeUJuyc/GRuc3QUBVgVIGS2Kd X-Received: from irogers.svl.corp.google.com ([2620:15c:2d4:203:c563:7e28:fb7c:bce3]) (user=irogers job=sendgmr) by 2002:a05:6902:100e:b0:b8b:f584:6b73 with SMTP id w14-20020a056902100e00b00b8bf5846b73mr3091570ybt.10.1682746738992; Fri, 28 Apr 2023 22:38:58 -0700 (PDT) Date: Fri, 28 Apr 2023 22:34:46 -0700 In-Reply-To: <20230429053506.1962559-1-irogers@google.com> Message-Id: <20230429053506.1962559-27-irogers@google.com> Mime-Version: 1.0 References: <20230429053506.1962559-1-irogers@google.com> X-Mailer: git-send-email 2.40.1.495.gc816e09b53d-goog Subject: [PATCH v3 26/46] perf parse-events: Wildcard legacy cache events From: Ian Rogers To: Arnaldo Carvalho de Melo , Kan Liang , Ahmad Yasin , Peter Zijlstra , Ingo Molnar , Stephane Eranian , Andi Kleen , Perry Taylor , Samantha Alt , Caleb Biggers , Weilin Wang , Edward Baker , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Adrian Hunter , Florian Fischer , Rob Herring , Zhengjun Xing , John Garry , Kajol Jain , Sumanth Korikkar , Thomas Richter , Tiezhu Yang , Ravi Bangoria , Leo Yan , Yang Jihong , James Clark , Suzuki Poulouse , Kang Minchul , Athira Rajeev , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Ian Rogers Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" It is inconsistent that "perf stat -e instructions-retired" wildcard opens on all PMUs while legacy cache events like "perf stat -e L1-dcache-load-miss" do not. A behavior introduced by hybrid is that a legacy cache event like L1-dcache-load-miss should wildcard open on all hybrid PMUs. Previously hybrid would call to is_event_supported for each PMU, a failure of which results in the event not being added. This isn't done in this case as the parser should just create perf_event_attr and the later open should fail, or the counter give "". If this wants to be avoided then the PMU can be named with the event. Signed-off-by: Ian Rogers --- tools/perf/util/parse-events-hybrid.c | 33 ------------- tools/perf/util/parse-events-hybrid.h | 7 --- tools/perf/util/parse-events.c | 68 ++++++++++++++------------- tools/perf/util/parse-events.h | 3 +- tools/perf/util/parse-events.y | 2 +- 5 files changed, 37 insertions(+), 76 deletions(-) diff --git a/tools/perf/util/parse-events-hybrid.c b/tools/perf/util/parse-= events-hybrid.c index 7c9f9150bad5..d2c0be051d46 100644 --- a/tools/perf/util/parse-events-hybrid.c +++ b/tools/perf/util/parse-events-hybrid.c @@ -179,36 +179,3 @@ int parse_events__add_numeric_hybrid(struct parse_even= ts_state *parse_state, return add_raw_hybrid(parse_state, list, attr, name, metric_id, config_terms); } - -int parse_events__add_cache_hybrid(struct list_head *list, int *idx, - struct perf_event_attr *attr, - const char *name, - const char *metric_id, - struct list_head *config_terms, - bool *hybrid, - struct parse_events_state *parse_state) -{ - struct perf_pmu *pmu; - int ret; - - *hybrid =3D false; - if (!perf_pmu__has_hybrid()) - return 0; - - *hybrid =3D true; - perf_pmu__for_each_hybrid_pmu(pmu) { - LIST_HEAD(terms); - - if (pmu_cmp(parse_state, pmu)) - continue; - - copy_config_terms(&terms, config_terms); - ret =3D create_event_hybrid(PERF_TYPE_HW_CACHE, idx, list, - attr, name, metric_id, &terms, pmu); - free_config_terms(&terms); - if (ret) - return ret; - } - - return 0; -} diff --git a/tools/perf/util/parse-events-hybrid.h b/tools/perf/util/parse-= events-hybrid.h index cbc05fec02a2..bc2966e73897 100644 --- a/tools/perf/util/parse-events-hybrid.h +++ b/tools/perf/util/parse-events-hybrid.h @@ -15,11 +15,4 @@ int parse_events__add_numeric_hybrid(struct parse_events= _state *parse_state, struct list_head *config_terms, bool *hybrid); =20 -int parse_events__add_cache_hybrid(struct list_head *list, int *idx, - struct perf_event_attr *attr, - const char *name, const char *metric_id, - struct list_head *config_terms, - bool *hybrid, - struct parse_events_state *parse_state); - #endif /* __PERF_PARSE_EVENTS_HYBRID_H */ diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index f692dd953593..9f2bbf8f3a81 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -472,46 +472,48 @@ static int parse_events__decode_legacy_cache(const ch= ar *name, int pmu_type, __u =20 int parse_events_add_cache(struct list_head *list, int *idx, const char *n= ame, struct parse_events_error *err, - struct list_head *head_config, - struct parse_events_state *parse_state) + struct list_head *head_config) { - struct perf_event_attr attr; - LIST_HEAD(config_terms); - const char *config_name, *metric_id; - int ret; - bool hybrid; + struct perf_pmu *pmu =3D NULL; + bool found_supported =3D false; + const char *config_name =3D get_config_name(head_config); + const char *metric_id =3D get_config_metric_id(head_config); =20 + while ((pmu =3D perf_pmu__scan(pmu)) !=3D NULL) { + LIST_HEAD(config_terms); + struct perf_event_attr attr; + int ret; =20 - memset(&attr, 0, sizeof(attr)); - attr.type =3D PERF_TYPE_HW_CACHE; - ret =3D parse_events__decode_legacy_cache(name, /*pmu_type=3D*/0, &attr.c= onfig); - if (ret) - return ret; + /* Skip unsupported PMUs. */ + if (!perf_pmu__supports_legacy_cache(pmu)) + continue; =20 - if (head_config) { - if (config_attr(&attr, head_config, err, - config_term_common)) - return -EINVAL; + memset(&attr, 0, sizeof(attr)); + attr.type =3D PERF_TYPE_HW_CACHE; =20 - if (get_config_terms(head_config, &config_terms)) - return -ENOMEM; - } + ret =3D parse_events__decode_legacy_cache(name, pmu->type, &attr.config); + if (ret) + return ret; =20 - config_name =3D get_config_name(head_config); - metric_id =3D get_config_metric_id(head_config); - ret =3D parse_events__add_cache_hybrid(list, idx, &attr, - config_name ? : name, - metric_id, - &config_terms, - &hybrid, parse_state); - if (hybrid) - goto out_free_terms; + found_supported =3D true; =20 - ret =3D add_event(list, idx, &attr, config_name ? : name, metric_id, - &config_terms); -out_free_terms: - free_config_terms(&config_terms); - return ret; + if (head_config) { + if (config_attr(&attr, head_config, err, + config_term_common)) + return -EINVAL; + + if (get_config_terms(head_config, &config_terms)) + return -ENOMEM; + } + + if (__add_event(list, idx, &attr, /*init_attr*/true, config_name ?: name, + metric_id, pmu, &config_terms, /*auto_merge_stats=3D*/false, + /*cpu_list=3D*/NULL) =3D=3D NULL) + return -ENOMEM; + + free_config_terms(&config_terms); + } + return found_supported ? 0 : -EINVAL; } =20 #ifdef HAVE_LIBTRACEEVENT diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index 5acb62c2e00a..0c26303f7f63 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -172,8 +172,7 @@ int parse_events_add_tool(struct parse_events_state *pa= rse_state, int tool_event); int parse_events_add_cache(struct list_head *list, int *idx, const char *n= ame, struct parse_events_error *error, - struct list_head *head_config, - struct parse_events_state *parse_state); + struct list_head *head_config); int parse_events_add_breakpoint(struct list_head *list, int *idx, u64 addr, char *type, u64 len); int parse_events_add_pmu(struct parse_events_state *parse_state, diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y index f84fa1b132b3..cc7528558845 100644 --- a/tools/perf/util/parse-events.y +++ b/tools/perf/util/parse-events.y @@ -476,7 +476,7 @@ PE_LEGACY_CACHE opt_event_config =20 list =3D alloc_list(); ABORT_ON(!list); - err =3D parse_events_add_cache(list, &parse_state->idx, $1, error, $2, pa= rse_state); + err =3D parse_events_add_cache(list, &parse_state->idx, $1, error, $2); =20 parse_events_terms__delete($2); free($1); --=20 2.40.1.495.gc816e09b53d-goog