From nobody Wed Oct 8 14:20:54 2025 Received: from mail-oa1-f74.google.com (mail-oa1-f74.google.com [209.85.160.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CE5B52ED16B for ; Fri, 27 Jun 2025 19:24:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.74 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751052281; cv=none; b=o5N/pnM84b0zCb6aJHQVPTy7T+wjTW8iRDPKBwKpRGobwbl1d2mxpk2EJeTFKFEnMWa+DlWMLQni+ZlPYoevV45o7Ks6Mpr4/xXz+FGW3S+YDytUQvv2Vt8DBidF9hFdUzeHiHTfSxx/19iTyUdsZ9fHkaf3UE1tZDbyYUJRgvc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751052281; c=relaxed/simple; bh=aNMN2DWhRyU+2RMpyUjUFGngTzlUnjuyhGY6JPjW1Eo=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=IstC5vOOoHB1S8b71rrv3WXHMhtQ7AdOfLZxG9AwwCKhv4FV22d5AOIBhk/SPXh9ZMmYE25hdR3r4CPAjnkLvrrdE0uQ1NeEO4dvYJNT+MI3yQLfnbKlwT536Bndb3wrMqM4sWIYR8ma/pTlHlPCsIFsj9tngrop4CVGkr5YpbU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=2WpF7uTs; arc=none smtp.client-ip=209.85.160.74 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="2WpF7uTs" Received: by mail-oa1-f74.google.com with SMTP id 586e51a60fabf-2d9e7fbff93so2514191fac.2 for ; Fri, 27 Jun 2025 12:24:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1751052279; x=1751657079; darn=vger.kernel.org; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=Y648qPWPFyBd60sW81F/WAt0bQS91tJJCKmWVX/1yDk=; b=2WpF7uTsZWSOWHDNmMCdPl3WuQT/JGiF0vETmMnX0TnfxEpajkmrINYeK3q87yu+3q LrebpuUOLdiUrei9UtDv3A9ajnyu8voNNzFbxo6Cm+JoM44whOxbiokJYjkoEO4GRdHz em/H2UOhNcuDF8I7xQKCSmbZYhct8A+XV9RY+5uEck27p24LrKBTY0EYPlzV4EfLmCyb Afyl8v6g0E5yMIXwdsVMpa82Z5F914lNj2RWDO9CEdWy4+aJBIJPVqTCXpV7xk0OoCdq hzH4lxLJNYrbBupdcsaPSiEU+vqKuFuvR6TKi8qhtrla9yXcOR44tGQuQz7A/eDHJ+Lr JTvA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751052279; x=1751657079; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Y648qPWPFyBd60sW81F/WAt0bQS91tJJCKmWVX/1yDk=; b=O4bd5h4bnYgH3avc7PhKS9LutIJ++BbqrM1YeWAXJnDzLd5FXTNGATroTjOJrZ1/HJ 8wNPSzMAyZEbFx/Y57odKWc7tycNYqu5/rCN4jtkZZgt6cUkWQia9HRVfxrEVmfcTC09 Gdv2rnj+IH3Y/g4QfcgxTenLPKOLdqncopZAWVxFvF8iWlatJvFt/DNT2KzTbkxhBiMU WGBoOLBOBGPdxX+oIeewsp2tJNPmABeUoaokJSAIe/NsZ50ykOa7UlfLJuox/fG6HfFR H8acnRcyvpRKswdVylnaFGF2/+08nJ30QVttaI7VCHPKRrr2tK1JBoeftonmM/9slpLe hjUQ== X-Forwarded-Encrypted: i=1; AJvYcCV8M0gHMxSWpVXadYQ6cl7QEkQ9X2Ts7yp/2ho+oal4gpaAyWoxKzUD3NIIee5q1asVc3LfB+E+EnOiP5I=@vger.kernel.org X-Gm-Message-State: AOJu0YxGHZUGoQ+JiPsRnTc0h2xkwA1dIexgJp7ZvpaaDR7vbbgXFMac 9ItY8P5QI1f4FSrKhnOWibGozf3R6Y1PXsc5ZeH+Gsbfm8QwljT56NUvlZBqNMbKxWi3pFaA0L6 4bksto1VnAg== X-Google-Smtp-Source: AGHT+IEl0ZSGGe1ulHNJcLJqY9IP+npGVG5iV/pYKzVba8MHXlliSCOPcJXopnVaaMUpJL7mwG+wscVnaTwb X-Received: from oabvp16.prod.google.com ([2002:a05:6871:a010:b0:2d5:7c74:78d]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6870:f60f:b0:2e9:95cc:b855 with SMTP id 586e51a60fabf-2efed7553a2mr3126222fac.34.1751052279003; Fri, 27 Jun 2025 12:24:39 -0700 (PDT) Date: Fri, 27 Jun 2025 12:24:14 -0700 In-Reply-To: <20250627192417.1157736-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250627192417.1157736-1-irogers@google.com> X-Mailer: git-send-email 2.50.0.727.gbf7dc18ff4-goog Message-ID: <20250627192417.1157736-10-irogers@google.com> Subject: [PATCH v1 09/12] perf pmus: Factor perf_pmus__find_by_attr out of evsel__find_pmu From: Ian Rogers To: Thomas Falcon , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , Ben Gainey , James Clark , Howard Chu , Weilin Wang , Levi Yun , "Dr. David Alan Gilbert" , Zhongqiu Han , Blake Jones , Yicong Yang , Anubhav Shelat , Thomas Richter , Jean-Philippe Romain , Song Liu , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Allow a PMU to be found by a perf_event_attr, useful when creating evsels. Signed-off-by: Ian Rogers --- tools/perf/util/pmus.c | 29 +++++++++++++++++------------ tools/perf/util/pmus.h | 2 ++ 2 files changed, 19 insertions(+), 12 deletions(-) diff --git a/tools/perf/util/pmus.c b/tools/perf/util/pmus.c index 3bbd26fec78a..8bf698badaa7 100644 --- a/tools/perf/util/pmus.c +++ b/tools/perf/util/pmus.c @@ -715,24 +715,18 @@ bool perf_pmus__supports_extended_type(void) return perf_pmus__do_support_extended_type; } =20 -struct perf_pmu *evsel__find_pmu(const struct evsel *evsel) +struct perf_pmu *perf_pmus__find_by_attr(const struct perf_event_attr *att= r) { - struct perf_pmu *pmu =3D evsel->pmu; - bool legacy_core_type; - - if (pmu) - return pmu; + struct perf_pmu *pmu =3D perf_pmus__find_by_type(attr->type); + u32 type =3D attr->type; + bool legacy_core_type =3D type =3D=3D PERF_TYPE_HARDWARE || type =3D=3D P= ERF_TYPE_HW_CACHE; =20 - pmu =3D perf_pmus__find_by_type(evsel->core.attr.type); - legacy_core_type =3D - evsel->core.attr.type =3D=3D PERF_TYPE_HARDWARE || - evsel->core.attr.type =3D=3D PERF_TYPE_HW_CACHE; if (!pmu && legacy_core_type && perf_pmus__supports_extended_type()) { - u32 type =3D evsel->core.attr.config >> PERF_PMU_TYPE_SHIFT; + type =3D attr->config >> PERF_PMU_TYPE_SHIFT; =20 pmu =3D perf_pmus__find_by_type(type); } - if (!pmu && (legacy_core_type || evsel->core.attr.type =3D=3D PERF_TYPE_R= AW)) { + if (!pmu && (legacy_core_type || type =3D=3D PERF_TYPE_RAW)) { /* * For legacy events, if there was no extended type info then * assume the PMU is the first core PMU. @@ -743,6 +737,17 @@ struct perf_pmu *evsel__find_pmu(const struct evsel *e= vsel) */ pmu =3D perf_pmus__find_core_pmu(); } + return pmu; +} + +struct perf_pmu *evsel__find_pmu(const struct evsel *evsel) +{ + struct perf_pmu *pmu =3D evsel->pmu; + + if (pmu) + return pmu; + + pmu =3D perf_pmus__find_by_attr(&evsel->core.attr); ((struct evsel *)evsel)->pmu =3D pmu; return pmu; } diff --git a/tools/perf/util/pmus.h b/tools/perf/util/pmus.h index 8def20e615ad..09590b1057ef 100644 --- a/tools/perf/util/pmus.h +++ b/tools/perf/util/pmus.h @@ -5,6 +5,7 @@ #include #include =20 +struct perf_event_attr; struct perf_pmu; struct print_callbacks; =20 @@ -16,6 +17,7 @@ void perf_pmus__destroy(void); =20 struct perf_pmu *perf_pmus__find(const char *name); struct perf_pmu *perf_pmus__find_by_type(unsigned int type); +struct perf_pmu *perf_pmus__find_by_attr(const struct perf_event_attr *att= r); =20 struct perf_pmu *perf_pmus__scan(struct perf_pmu *pmu); struct perf_pmu *perf_pmus__scan_core(struct perf_pmu *pmu); --=20 2.50.0.727.gbf7dc18ff4-goog