1
linux/kernel/events
Peter Zijlstra 35edc2a509 perf, arch: Rework perf_event_index()
Put the logic to compute the event index into a per pmu method. This
is required because the x86 rules are weird and wonderful and don't
match the capabilities of the current scheme.

AFAIK only powerpc actually has a usable userspace read of the PMCs
but I'm not at all sure anybody actually used that.

ARM is restored to the default since it currently does not support
userspace access at all. And all software events are provided with a
method that reports their index as 0 (disabled).

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Michael Cree <mcree@orcon.net.nz>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
Cc: Anton Blanchard <anton@samba.org>
Cc: Eric B Munson <emunson@mgebm.net>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Arun Sharma <asharma@fb.com>
Link: http://lkml.kernel.org/n/tip-dfydxodki16lylkt3gl2j7cw@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-21 11:01:07 +01:00
..
callchain.c perf: Carve out callchain functionality 2011-11-14 13:31:26 +01:00
core.c perf, arch: Rework perf_event_index() 2011-12-21 11:01:07 +01:00
hw_breakpoint.c perf, arch: Rework perf_event_index() 2011-12-21 11:01:07 +01:00
internal.h Merge branch 'perf/urgent' into perf/core 2011-12-06 06:43:49 +01:00
Makefile perf: Carve out callchain functionality 2011-11-14 13:31:26 +01:00
ring_buffer.c perf: Fix loss of notification with multi-event 2011-12-05 09:33:03 +01:00