[tip:perf/core] perf/powerpc: Add support for PERF_SAMPLE_BRANCH_CALL

tip-bot for Stephane Eranian
2015-10-20T09:37:21Z

Commit-ID: 24f1a79a5fc10858e05ee0bf651ec99abfc0319b
Gitweb: http://git.kernel.org/tip/24f1a79a5fc10858e05ee0bf651ec99abfc0319b
Author: Stephane Eranian <eranian@google.com>
AuthorDate: Tue, 13 Oct 2015 09:09:10 +0200
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Tue, 20 Oct 2015 10:30:54 +0200

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@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: khandual@linux.vnet.ibm.com
Link: http://lkml.kernel.org/r/1444720151-10275-4-git-send-email-eranian@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
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;