perf_counter: revamp syscall input ABI

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Impact: modify ABI

The hardware/software classification in hw_event->type became a little
strained due to the addition of tracepoint tracing.

Instead split up the field and provide a type field to explicitly specify
the counter type, while using the event_id field to specify which event to
use.

Raw counters still work as before, only the raw config now goes into
raw_event.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Orig-LKML-Reference: <20090319194233.836807573@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

Peter Zijlstra 2009-03-19 20:26:18 +01:00 • committed by Ingo Molnar

parent e077df4f43

commit b8e83514b6

4 changed files with 117 additions and 75 deletions

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4

arch/powerpc/kernel/perf_counter.c

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10

arch/x86/kernel/cpu/perf_counter.c

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95

include/linux/perf_counter.h

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83

kernel/perf_counter.c

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