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authorAnshuman Khandual <khandual@linux.vnet.ibm.com>2013-06-10 05:53:29 (GMT)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-07-24 04:42:34 (GMT)
commitff3d79dc12c2ed38483f6c1e0f26fde430f27c9d (patch)
tree3c66c7f40541c3075b58b750ee02994c5e82ddbf /arch/powerpc/perf
parent7689bdcab1dca061c4c91f0e1703cef1b7b67e71 (diff)
powerpc/perf: BHRB filter configuration should follow the task
When the task moves around the system, the corresponding cpuhw per cpu strcuture should be popullated with the BHRB filter request value so that PMU could be configured appropriately with that during the next call into power_pmu_enable(). Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Acked-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/perf')
-rw-r--r--arch/powerpc/perf/core-book3s.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index a3985ae..24a45f9 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -1252,8 +1252,11 @@ nocheck:
ret = 0;
out:
- if (has_branch_stack(event))
+ if (has_branch_stack(event)) {
power_pmu_bhrb_enable(event);
+ cpuhw->bhrb_filter = ppmu->bhrb_filter_map(
+ event->attr.branch_sample_type);
+ }
perf_pmu_enable(event->pmu);
local_irq_restore(flags);

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