From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yw1-f202.google.com (mail-yw1-f202.google.com [209.85.128.202]) (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 E737A1C683 for ; Thu, 17 Oct 2024 06:36:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729146966; cv=none; b=OwgWdz6J1BgU7YshI7FkbrR+TcvOr+/PJymZUl8NCF5I4NamgoktWgwDyd3TiiOltHssw516EvLUrSPdyLlqcZKgl8hNXRoneqrPhxPVa4nNe5kmFIdE7yTHLaLovnHjGqjwsT/O3wEdVchRXcByOkcI+WK1yrD0LUgwMDu+bNQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729146966; c=relaxed/simple; bh=7J/m0cVLAJYE5mzoKbcHuAxM6Fkg0GwDOHT/ePSXW3I=; h=Date:Message-Id:Mime-Version:Subject:From:To:Content-Type; b=TSmvJfuSccFNbXrPXEZYQyrZNorlXvb97zs/DsRqcXTKWXmdoWbmvhBfuqfLBMm6fpk3NKhfXUV3pAZBQTye6FBLmPO520GThSRTs7GVyR6We/rjPOmaW80vtnicpE53UNE868dYSag00e3hK6hkwcdxC435ftERJnHTkdbc5mg= 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=x1EkKi6y; arc=none smtp.client-ip=209.85.128.202 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="x1EkKi6y" Received: by mail-yw1-f202.google.com with SMTP id 00721157ae682-6e3529d80e5so11235597b3.0 for ; Wed, 16 Oct 2024 23:36:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1729146963; x=1729751763; darn=vger.kernel.org; h=to:from:subject:mime-version:message-id:date:from:to:cc:subject :date:message-id:reply-to; bh=uuP62fKgSKaN5wKlRPCIOtPciYOVRGvenvpBJZ6RRKk=; b=x1EkKi6yGcgXTkvCJyFbpfraP/+y3PYzQVilo4DH1tXrYH7QfDWa4f2/al+qJHBNob sYhVYcllDNqWAogO5cSqbyiN3VAX1H/q1K3sxZlzcmjEkqNZCjwY8AxmKGZIvR9JKsG/ MKFPHd25vCOA3EBcbVcN379HUfXBywoUAKVJrtDw+rFjGEd7QS/WwTt71CWiO8tbjo1q N0fabhCBiLfa5t/QfQ7aNQl3ZlchT2mdfEG4OdbVgXjPJF6up8nAr4jZWZgZG4MZ6FTF YG3dr3//oeFsiAJXGNVZpVyUghbtupp1ZiYa85SPFi270Wr01n7vP+o7OhJT++EbV6v/ 798w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729146963; x=1729751763; h=to:from:subject:mime-version:message-id:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=uuP62fKgSKaN5wKlRPCIOtPciYOVRGvenvpBJZ6RRKk=; b=GjSvAdy6wLnkZmai02uO9c4N+ctOOtM+b8qoWaKMV4W7xqGO5jufVaB6fxxyajgkon 4e4dN6sAML/cjk3q9tNouxtCRdpFv14MCySBfpHpCigJgr5+WQDAqZr2S2KznH4jlQD1 s4i5LrGOS0ngaeTdfgTixvscCnlKQ6yKRt7sare3gEHC3uwJ+ilB4PfGMzOLqZoBC67J X9RUiH9yxcpZwY9FY5CUtj1sMBWKcjz+yPRhY5AvCDoA33tHZX0qbteAsIfWF0IrE7eL ERXcZrrDhaNTJZXzkJiauTpS6U2U8S3sT86s5wRh4OHGPWgZp7jGsY0WLXH/Hj2aA6eZ H30g== X-Forwarded-Encrypted: i=1; AJvYcCXq9MXzxAOEwACQg1zOVr+OuQJVquKDrk2rVNfi6KjYk1hcBXzBL5aRBcT/fu5/u+YaW1+NP70+vE2UHvM=@vger.kernel.org X-Gm-Message-State: AOJu0YyiCIyrRuP3PH6L+sv2Ia0/XsjQJlGxXiuu35XTIbH5fRMGP6t+ c2EWgeVDkmwVjTtRtDT3TWLmW5ItatQEuyTNmd7UPrM4w50AKajcg34JlosY2Z7AaDL2gXfeIOD Rnd12dg== X-Google-Smtp-Source: AGHT+IH0c5c2+SOAZYYigGPsrUE5v5DUMsPFhy9hNP8ALMBXGZOLuW9zeqtpiBkyAAhD4EHptZu0Xkl5pbCi X-Received: from irogers.svl.corp.google.com ([2620:15c:2c5:11:98a5:142e:8c2e:e9e5]) (user=irogers job=sendgmr) by 2002:a05:690c:25c1:b0:6e3:6597:222f with SMTP id 00721157ae682-6e3d41c8379mr1193537b3.6.1729146962804; Wed, 16 Oct 2024 23:36:02 -0700 (PDT) Date: Wed, 16 Oct 2024 23:35:50 -0700 Message-Id: <20241017063555.366065-1-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 2.47.0.105.g07ac214952-goog Subject: [PATCH v5 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 , 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] ... ``` v5: Fix asan issue in parse_hwmon_filename caught by a TMA metric. 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 -- 2.47.0.105.g07ac214952-goog