Commit c1b4745b authored Jun 17, 2020 by John Garry Committed by Arnaldo Carvalho de Melo Jun 22, 2020

perf pmu: List kernel supplied event aliases for arm64



In commit dc098b35 ("perf list: List kernel supplied event aliases"),
the aliases for events are supplied in addition to CPU event in perf list.

This relies on the name of the core PMU being "cpu", which is not the case
for arm64, so arm64 has always missed this. Use generic is_pmu_core()
helper which takes account of arm64 to make this feature work for arm64
(and possibly other archs).

Sample, before:

  armv8_pmuv3_0/br_mis_pred/          [Kernel PMU event]

after:

  br_mis_pred OR armv8_pmuv3_0/br_mis_pred/          [Kernel PMU event]

Signed-off-by: John Garry <john.garry@huawei.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linuxarm@huawei.com
Link: http://lore.kernel.org/lkml/1592384514-119954-2-git-send-email-john.garry@huawei.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent 47446212

tools/perf/util/pmu.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1477,7 +1477,7 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
		list_for_each_entry(alias, &pmu->aliases, list) {
		char *name = alias->desc ? alias->name :
		format_alias(buf, sizeof(buf), pmu, alias);
		bool is_cpu = !strcmp(pmu->name, "cpu");
		bool is_cpu = is_pmu_core(pmu->name);

		if (alias->deprecated && !deprecated)
		continue;

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