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From: Namhyung Kim <namhyung@kernel.org>
To: Kan Liang <kan.liang@linux.intel.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Weilin Wang <weilin.wang@intel.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	linux-perf-users@vger.kernel.org,
	Ian Rogers <irogers@google.com>,
	James Clark <james.clark@arm.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Samantha Alt <samantha.alt@intel.com>,
	Ingo Molnar <mingo@redhat.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Caleb Biggers <caleb.biggers@intel.com>,
	Jiri Olsa <jolsa@kernel.org>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	linux-kernel@vger.kernel.org,
	Edward Baker <edward.baker@intel.com>,
	Perry Taylor <perry.taylor@intel.com>
Subject: Re: [PATCH v1] perf pmu: Treat the msr pmu as software
Date: Sat, 27 Jan 2024 10:16:47 -0800
Message-ID: <170637928210.816351.6189596994646336873.b4-ty@kernel.org>
In-Reply-To: <20240124234200.1510417-1-irogers@google.com>
References: <20240124234200.1510417-1-irogers@google.com>
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On Wed, 24 Jan 2024 15:42:00 -0800, Ian Rogers wrote:
> The msr PMU is a software one, meaning msr events may be grouped
> with events in a hardware context. As the msr PMU isn't marked as a
> software PMU by perf_pmu__is_software, groups with the msr PMU in
> are broken and the msr events placed in a different group. This
> may lead to multiplexing errors where a hardware event isn't
> counted while the msr event, such as tsc, is. Fix all of this by
> marking the msr PMU as software, which agrees with the driver.
> 
> [...]

Applied to perf-tools-next, thanks!

Best regards,
-- 
Namhyung Kim <namhyung@kernel.org>