linux-kernel - Re: [PATCH v2] perf print-events: make is_event

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Date: Mon, 26 Feb 2024 08:20:24 -0800
From: Namhyung Kim <namhyung@...nel.org>
To: linux-kernel@...r.kernel.org,
	Mark Rutland <mark.rutland@....com>
Cc: linux-perf-users@...r.kernel.org,
	leo.yan@...aro.org,
	suzuki.poulose@....com,
	acme@...hat.com,
	mike.leach@...aro.org,
	marcan@...can.st,
	maz@...nel.org,
	john.g.garry@...cle.com,
	james.clark@....com,
	irogers@...gle.com,
	will@...nel.org,
	tmricht@...ux.ibm.com,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2] perf print-events: make is_event_supported() more robust

On Fri, 26 Jan 2024 14:56:05 +0000, Mark Rutland wrote:
> Currently the perf tool doesn't detect support for extended event types
> on Apple M1/M2 systems, and will not auto-expand plain PERF_EVENT_TYPE
> hardware events into per-PMU events. This is due to the detection of
> extended event types not handling mandatory filters required by the
> M1/M2 PMU driver.
> 
> PMU drivers and the core perf_events code can require that
> perf_event_attr::exclude_* filters are configured in a specific way and
> may reject certain configurations of filters, for example:
> 
> [...]

Applied to perf-tools-next, thanks!

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