linux-kernel - [PATCH 3/4] perf/powerpc: add support for PERF_SAMPLE_BRANCH

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Date:	Tue, 13 Oct 2015 09:09:10 +0200
From:	Stephane Eranian <eranian@...gle.com>
To:	linux-kernel@...r.kernel.org
Cc:	acme@...hat.com, peterz@...radead.org, mingo@...e.hu,
	ak@...ux.intel.com, jolsa@...hat.com, namhyung@...nel.org,
	khandual@...ux.vnet.ibm.com
Subject: [PATCH 3/4] perf/powerpc: add support for PERF_SAMPLE_BRANCH_CALL

The patch catches PERF_SAMPLE_BRANCH_CALL because it is not clear whether
this is actually supported by the hardware.

Signed-off-by: Stephane Eranian <eranian@...gle.com>
---
 arch/powerpc/perf/power8-pmu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/perf/power8-pmu.c b/arch/powerpc/perf/power8-pmu.c
index 396351d..7d5e295 100644
--- a/arch/powerpc/perf/power8-pmu.c
+++ b/arch/powerpc/perf/power8-pmu.c
@@ -676,6 +676,9 @@ static u64 power8_bhrb_filter_map(u64 branch_sample_type)
 	if (branch_sample_type & PERF_SAMPLE_BRANCH_IND_CALL)
 		return -1;
 
+	if (branch_sample_type & PERF_SAMPLE_BRANCH_CALL)
+		return -1;
+
 	if (branch_sample_type & PERF_SAMPLE_BRANCH_ANY_CALL) {
 		pmu_bhrb_filter |= POWER8_MMCRA_IFM1;
 		return pmu_bhrb_filter;
-- 
1.9.1

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