From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yb1-f202.google.com (mail-yb1-f202.google.com [209.85.219.202]) (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 F402F1FAF1F for ; Tue, 15 Oct 2024 21:06:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729026394; cv=none; b=U1+BhN80QFDpIvaDguAbo3I+LM1OEEEZKFO8hsMXLSlplVyO2TIH/XI/4tFZfiThBls5j1zl8leOmKQT3MtLPK/MMarPoOWw6jtpFGdtv0kMV864doBTA6lFMUet0NJXXIVsd7YWThYFTgKZlpgh9JL8RBnC+DAW4AOOKoo2agY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729026394; c=relaxed/simple; bh=usrc87swuiIEZtF6d3XncI94QYmPNZzDpOf7pgjoktg=; h=Date:Message-Id:Mime-Version:Subject:From:To:Content-Type; b=aO+GXaxYC6nr+rxdb9A4ouqRl19GUyGxfPOTcjd3z8i8P21j6fMcxsm9MYPkLIgtUjNH+IGTTw9kj8IftjMotQoaop/odl0oplyEAte782SMwEedoVbkEmtsuTd60c1xxgzayYOkJ2o/fT6JESNlNszZlYh03gTaxq7evdb1PpQ= 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=XTpM1KAD; arc=none smtp.client-ip=209.85.219.202 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="XTpM1KAD" Received: by mail-yb1-f202.google.com with SMTP id 3f1490d57ef6-e28ef71f0d8so9448935276.0 for ; Tue, 15 Oct 2024 14:06:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1729026392; x=1729631192; darn=vger.kernel.org; h=to:from:subject:mime-version:message-id:date:from:to:cc:subject :date:message-id:reply-to; bh=V3V7UdMfheJVSkt+63c8FaFurZG67J77B0wKxX03R3U=; b=XTpM1KADwjXaBl0R/PLxol+qyRsrTnTWNGdpo9VygKW/kZ2jpWhc+neYxa9Mz01IA/ csxQy63Rwd4euwfXJ3wNv5MEhSBxxm72hm1ecbo1X9WB1L06ScIIax4bco17Th8cclko GOT5opzRVAAh9Dgj+Cz75satN3jEGbBGAcySKJZd87QPCQmEfOJ1+9OHdIdLR/asQ2B5 tQyShZTzI0betViK1f/8Bvd03Mekx2pqjJJqPKdznUf6y625L93acZOsL7yloqM6XswE /lIenm23vuh7yrWDmmsDOkmkinfACND+gRYiJaBT0gPgMEySfPZiYIv+/YaluxarxMps BleQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729026392; x=1729631192; h=to:from:subject:mime-version:message-id:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=V3V7UdMfheJVSkt+63c8FaFurZG67J77B0wKxX03R3U=; b=xBtnc2PYeRHKgM23Szt15CT754FFJONGXlnJanbXsn5qrz8cAdL6fFykQisrH5QsVC ueUgPw11QmWj9m9T7FpQ3ZDH2oHRTPswPsdrO0Q2GYyo3L6T977rIiAnlCtJllno2Amf vx0Sygpxz+Xj5SHyA1xOJoTBMnw5p810HALzwkqsx+qzCzQRPeKWaAEnrMfKui1Hp+d5 sFXhcWL41/4UEaGu58u/iHlvIFLPJGDnfR2Sp7DkTgEDkapDb4rxqw0F57Ks4dlQiGqr bAmYIvdDdmSlPiXycCc1UhcCgBjw61Vhh/hLy2LQLqoM+b3CKdpI/xYCikR9Tam/A6AJ Ukaw== X-Forwarded-Encrypted: i=1; AJvYcCWrkXcnbEeM9bnVnR0wgOgMWwa/42TNSLhLfAhdPGC3vE/JoBKPHtNRJdkSdAYTJaAK7KZc5KVMls1wPFw=@vger.kernel.org X-Gm-Message-State: AOJu0Yy8v/u3zcV3A2faECArw4ArEQ8qY5nCqVzzE/MvnW4+2bHd7M+0 htVdVVV3itre2kuru6ytgwShzDq7/BrWZ/7JK/HXE7+BjX1TjalPdJrwYEPxT4/KYDHjvWldek5 tUP0WPg== X-Google-Smtp-Source: AGHT+IFLQsMwt3RmY52ZnYdbWUmPSehl8+s1WJ6zwIO/r6G9EmOdNoktGWTpz27Avayxp+cRjctmzTvF362C X-Received: from irogers.svl.corp.google.com ([2620:15c:2c5:11:61a1:4d9d:aca1:ada]) (user=irogers job=sendgmr) by 2002:a05:6902:2d08:b0:e28:f6b3:3666 with SMTP id 3f1490d57ef6-e2978567367mr1383276.7.1729026391842; Tue, 15 Oct 2024 14:06:31 -0700 (PDT) Date: Tue, 15 Oct 2024 14:06:23 -0700 Message-Id: <20241015210629.1150428-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.47.0.rc1.288.g06298d1525-goog Subject: [PATCH v4 0/5] Hwmon PMUs From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , Ravi Bangoria , Weilin Wang , Yoshihiro Furudera , James Clark , Athira Jajeev , Howard Chu , Oliver Upton , Changbin Du , Ze Gao , Yang Jihong , Junhao He , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Following the convention of the tool PMU, create a hwmon PMU that exposes hwmon data for reading. For example, the following shows reading the CPU temperature and 2 fan speeds alongside the uncore frequency: ``` $ perf stat -e temp_cpu,fan1,hwmon_thinkpad/fan2/,tool/num_cpus_online/ -M UNCORE_FREQ -I 1000 1.001153138 52.00 'C temp_cpu 1.001153138 2,588 rpm fan1 1.001153138 2,482 rpm hwmon_thinkpad/fan2/ 1.001153138 8 tool/num_cpus_online/ 1.001153138 1,077,101,397 UNC_CLOCK.SOCKET # 1.08 UNCORE_FREQ 1.001153138 1,012,773,595 duration_time ... ``` Additional data on the hwmon events is in perf list: ``` $ perf list ... hwmon: ... temp_core_0 OR temp2 [Temperature in unit coretemp named Core 0. crit=100'C,max=100'C crit_alarm=0'C. Unit: hwmon_coretemp] ... ``` v4: Drop merged patches 1 to 10. Separate adding the hwmon_pmu from the update to perf_pmu to use it. Try to make source of literal strings clearer via named #defines. Fix a number of GCC warnings. v3: Rebase, add Namhyung's acked-by to patches 1 to 10. v2: Address Namhyung's review feedback. Rebase dropping 4 patches applied by Arnaldo, fix build breakage reported by Arnaldo. Ian Rogers (5): tools api io: Ensure line_len_out is always initialized perf hwmon_pmu: Add a tool PMU exposing events from hwmon in sysfs perf pmu: Add calls enabling the hwmon_pmu perf test: Add hwmon "PMU" test perf docs: Document tool and hwmon events tools/lib/api/io.h | 1 + tools/perf/Documentation/perf-list.txt | 15 + tools/perf/tests/Build | 1 + tools/perf/tests/builtin-test.c | 1 + tools/perf/tests/hwmon_pmu.c | 243 ++++++++ tools/perf/tests/tests.h | 1 + tools/perf/util/Build | 1 + tools/perf/util/evsel.c | 9 + tools/perf/util/hwmon_pmu.c | 820 +++++++++++++++++++++++++ tools/perf/util/hwmon_pmu.h | 154 +++++ tools/perf/util/pmu.c | 20 + tools/perf/util/pmu.h | 2 + tools/perf/util/pmus.c | 9 + tools/perf/util/pmus.h | 3 + 14 files changed, 1280 insertions(+) create mode 100644 tools/perf/tests/hwmon_pmu.c create mode 100644 tools/perf/util/hwmon_pmu.c create mode 100644 tools/perf/util/hwmon_pmu.h -- 2.47.0.rc1.288.g06298d1525-goog