From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f201.google.com (mail-pf1-f201.google.com [209.85.210.201]) (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 123752566FC for ; Tue, 24 Jun 2025 23:19:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750807144; cv=none; b=MSSx0fVT6FBj1ZyGTY3bgoUipcusHs75fqDwELXh5olx8T3CliprQ33gqc050IzQwpXUVmlyRs4Qa/lXO0ShXI8by6GOOfPHZQozdPw7mrTO+7gUmTk4JABRHjxx+RBG5pDBuENt7FDmn6pxU2XtWEEydxagmjQWiyD4Th4lt64= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750807144; c=relaxed/simple; bh=qsd+J5obkf/JJPWjGyBw6D2rofd/ROvvLqQ/ikiIxws=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=UNS0gizCDvqxsReBfSsCNxkvViwYefYr9LeDuADpY+VNBbgZK0jNyHm68vCpsTTF6OkdIS4brX/IjXNnwITzf818XOx4QFUvQWBDLQuqEST91uSoSeB0LsUAIhRQj8RkftQfSDohmVhqIoWOvefRlnFdogy3ziI/o0ACuuXu+8c= 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=FCAKFo6r; arc=none smtp.client-ip=209.85.210.201 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="FCAKFo6r" Received: by mail-pf1-f201.google.com with SMTP id d2e1a72fcca58-748e4637739so156950b3a.1 for ; Tue, 24 Jun 2025 16:19:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1750807142; x=1751411942; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=pngvqSmCovapbXdYFYPO9SgyKEbtBPIrkfwlrt81RZ0=; b=FCAKFo6rxAwpqw1D95y3R5wTVVWRO7J4Cm/vD49uCvkk5oFHYHcI+hPsYEESHjCGim b4F+A30bRBiConuFHZFHdU8RXXWbQmMbMXZbdwZi7sxg3SGQXv2sTGXUBAlGWjQuCOtl +IRqHdN8fI51+DmyZbW1f0UF6AusfG9j/4Y9XyywBCzmES3BHt9KTnvx5kxLTqMXP0gp ZdKnF9AOgZT4oRPtCwee4t69DujvWFxXLP6GHITKP+CYMWCucbdKijxuDr7dCSGIrx3m oLzT7KJ7deEPM503AyfvdVDLfWt2LeDgOjlWYmg2RtH0ZxKqwchhzm+nSdbISxAKUqbJ 1ZjA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1750807142; x=1751411942; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=pngvqSmCovapbXdYFYPO9SgyKEbtBPIrkfwlrt81RZ0=; b=JObeMrY5kpd6hTU4zwNsc9733CrVIUTseUdHjp8W1PPcb+S+/Y9hE/ELDRvTXqkTZk l0CNTWg46wPuLHe6on4uW5K1m/RaxZKES/VhUKKW3Q5FEczzW+Axn7U2rBP9QbSdcyUY u75UnwiqV+a0+ywj2nb9YPJCpzj+Ve9hRMWb35zQfpmF1Cys3EY03CKEqC7vZGydlw0C KQrLFEAlhbzrQfuodmGaUG3siil++Jld3b8aZPvdv8ClWW/b/jmFrNXJQq3gKuG6C0ui ohLP8Fr96bRAeyLjoRtirlR5oZMJ24Z1pmhCGfNgp0hs+h6oKTu36bSFqZL6oOIhuINn OX6w== X-Forwarded-Encrypted: i=1; AJvYcCVVMn4GTPltH4BrQ0RcsROiqrUCeIIVkTzwr6BSjNHk8jy2Bczj4m1fISa7IlgXZTFxDeUah/P8FwRts1s=@vger.kernel.org X-Gm-Message-State: AOJu0Ywv6zUxnzIAsQbPbgaPYqC6ypn2qD1MVwd/oPDjO14Q0THXuevV 82ez9OyOVzaJDJRvK8frtCkHlPS8Bam6on7T+eDA2sHh5SDtzHx94FN4TjEt7YbF70uplXPJqRG hf8HeG3AdLw== X-Google-Smtp-Source: AGHT+IFV3B9OhuWzDeSllzGXDR7OZvOBgi6Pi0GJ0cqbrlPswzFv236wUfDx8y9GXBFd4lYwDCtu44HkGh5n X-Received: from pfbki22.prod.google.com ([2002:a05:6a00:9496:b0:748:da37:7e37]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a00:1891:b0:744:a240:fb1b with SMTP id d2e1a72fcca58-74ad4bf80dcmr1309549b3a.5.1750807142180; Tue, 24 Jun 2025 16:19:02 -0700 (PDT) Date: Tue, 24 Jun 2025 16:18:34 -0700 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 2.50.0.727.gbf7dc18ff4-goog Message-ID: <20250624231837.179536-1-irogers@google.com> Subject: [PATCH v4 0/3] Add support for a DRM tool like PMU From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Adrian Hunter , Kan Liang , "Masami Hiramatsu (Google)" , James Clark , Weilin Wang , Dominique Martinet , Thomas Richter , Junhao He , Jean-Philippe Romain , matthew.olson@intel.com, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, dri-devel@lists.freedesktop.org Cc: Ian Rogers Content-Type: text/plain; charset="UTF-8" DRM clients expose information through usage stats as documented in Documentation/gpu/drm-usage-stats.rst (available online at https://docs.kernel.org/gpu/drm-usage-stats.html). Add a tool like PMU, similar to the hwmon PMU, that exposes DRM information. v4: Rebase over changes like the auto merge stat to first wildcard PMU change and the clean up of tool PMU initialization. v3: Minor tweak to the test so the skip (exit 2) doesn't trigger the trap cleanup. v2: Add support to only scan hwmon and drm PMUs if the event or PMU wildcard can match. Add a test as requested by Namhyung. Add file comments. v1: https://lore.kernel.org/lkml/20250211071727.364389-1-irogers@google.com/ Ian Rogers (3): perf parse-events: Avoid scanning PMUs that can't contain events perf drm_pmu: Add a tool like PMU to expose DRM information perf tests: Add a DRM PMU test tools/perf/tests/shell/drm_pmu.sh | 78 ++++ tools/perf/util/Build | 1 + tools/perf/util/drm_pmu.c | 686 ++++++++++++++++++++++++++++++ tools/perf/util/drm_pmu.h | 39 ++ tools/perf/util/evsel.c | 9 + tools/perf/util/parse-events.c | 33 +- tools/perf/util/pmu.c | 15 + tools/perf/util/pmu.h | 4 +- tools/perf/util/pmus.c | 101 ++++- tools/perf/util/pmus.h | 2 + 10 files changed, 951 insertions(+), 17 deletions(-) create mode 100755 tools/perf/tests/shell/drm_pmu.sh create mode 100644 tools/perf/util/drm_pmu.c create mode 100644 tools/perf/util/drm_pmu.h -- 2.50.0.727.gbf7dc18ff4-goog