diff mbox series

[v2,7/7] perf tools: Unset precise_ip when using SPE

Message ID 20200123160734.3775-8-james.clark@arm.com (mailing list archive)
State New, archived
Headers show
Series perf tools: Add support for some spe events and precise ip | expand

Commit Message

James Clark Jan. 23, 2020, 4:07 p.m. UTC 
precise_ip is not supported on Arm and the kernel may be
updated to reflect this. So unset it when we know we can use
SPE to get precise data instead.

Signed-off-by: James Clark <james.clark@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Tan Xiaojun <tanxiaojun@huawei.com>
Cc: Al Grant <al.grant@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/arm-spe.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c
index 0fcaefd386a6..0ed2a68db0b3 100644
--- a/tools/perf/util/arm-spe.c
+++ b/tools/perf/util/arm-spe.c
@@ -937,6 +937,7 @@  void arm_spe_precise_ip_support(struct evlist *evlist, struct evsel *evsel)
 			evsel->core.attr.config = SPE_ATTR_TS_ENABLE
 						| SPE_ATTR_BRANCH_FILTER;
 			evsel->core.attr.config1 = SPE_ATTR_EV_BRANCH;
+			evsel->core.attr.precise_ip = 0;
 		}
 	}
 }