162306a36Sopenharmony_ciWhat:		/sys/bus/event_source/devices/<dev>/caps
262306a36Sopenharmony_ciDate:		May 2022
362306a36Sopenharmony_ciKernelVersion:	5.19
462306a36Sopenharmony_ciContact:	Linux kernel mailing list <linux-kernel@vger.kernel.org>
562306a36Sopenharmony_ciDescription:
662306a36Sopenharmony_ci		Attribute group to describe the capabilities exposed
762306a36Sopenharmony_ci		for a particular pmu. Each attribute of this group can
862306a36Sopenharmony_ci		expose information specific to a PMU, say pmu_name, so that
962306a36Sopenharmony_ci		userspace can understand some of the feature which the
1062306a36Sopenharmony_ci		platform specific PMU supports.
1162306a36Sopenharmony_ci
1262306a36Sopenharmony_ci		One of the example available capability in supported platform
1362306a36Sopenharmony_ci		like Intel is pmu_name, which exposes underlying CPU name known
1462306a36Sopenharmony_ci		to the PMU driver.
1562306a36Sopenharmony_ci
1662306a36Sopenharmony_ci		Example output in powerpc:
1762306a36Sopenharmony_ci		grep . /sys/bus/event_source/devices/cpu/caps/*
1862306a36Sopenharmony_ci		/sys/bus/event_source/devices/cpu/caps/pmu_name:POWER9
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