Michael Ellerman 4ea355b536 powerpc/perf: Don't enable if we have zero events ... In power_pmu_enable() we still enable the PMU even if we have zero events. This should have no effect but doesn't make much sense. Instead just return after telling the hypervisor that we are not using the PMCs. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> CC: <stable@vger.kernel.org> [v3.10] Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>		2013-07-01 11:50:03 +10:00
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bhrb.S	powerpc/perf: Add basic assembly code to read BHRB entries on POWER8	2013-04-26 16:11:11 +10:00
callchain.c	powerpc/perf: Use perf_instruction_pointer in callchains	2012-07-10 19:18:46 +10:00
core-book3s.c	powerpc/perf: Don't enable if we have zero events	2013-07-01 11:50:03 +10:00
core-fsl-emb.c	perf: Pass last sampling period to perf_sample_data_init()	2012-05-09 15:23:12 +02:00
e500-pmu.c	powerpc/perf: Add stalled-cycles events	2013-01-10 17:00:56 +11:00
Makefile	powerpc/perf: Add basic assembly code to read BHRB entries on POWER8	2013-04-26 16:11:11 +10:00
mpc7450-pmu.c	powerpc/perf: Move perf core & PMU code into a subdirectory	2012-02-23 10:50:04 +11:00
power4-pmu.c	powerpc/perf: Fix instruction address sampling on 970 and Power4	2012-03-28 11:33:24 +11:00
power5-pmu.c	powerpc/perf: Add an explict flag indicating presence of SLOT field	2013-04-26 16:11:07 +10:00
power5+-pmu.c	powerpc/perf: Add an explict flag indicating presence of SLOT field	2013-04-26 16:11:07 +10:00
power6-pmu.c	powerpc/perf: Move perf core & PMU code into a subdirectory	2012-02-23 10:50:04 +11:00
power7-pmu.c	perf/POWER7: Create a sysfs format entry for Power7 events	2013-03-13 17:01:04 -03:00
power8-pmu.c	powerpc/perf: Freeze PMC5/6 if we're not using them	2013-07-01 11:49:57 +10:00
ppc970-pmu.c	powerpc/perf: Fix instruction address sampling on 970 and Power4	2012-03-28 11:33:24 +11:00