perf: Sysfs enumeration

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Simple sysfs emumeration of the PMUs.

Use a "event_source" bus, and add PMU devices using their name.

Each PMU device has a type attribute which contrains the value needed
for perf_event_attr::type to identify this PMU.

This is the minimal stub needed to start using this interface,
we'll consider extending the sysfs usage later.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Greg KH <gregkh@suse.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20101117222056.316982569@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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This commit is contained in:

Peter Zijlstra 2010-11-17 23:17:37 +01:00 • committed by Ingo Molnar

parent 2e80a82a49

commit abe4340057

2 changed files with 95 additions and 1 deletions

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1

include/linux/perf_event.h

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95

kernel/perf_event.c

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