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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>
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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@ -588,6 +588,7 @@ struct perf_event;
struct pmu {
struct list_head entry;
struct device *dev;
char *name;
int type;