perf test: Update sysfs path for core PMU caps
authorNamhyung Kim <namhyung@kernel.org>
Fri, 9 May 2025 21:30:17 +0000 (14:30 -0700)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Tue, 13 May 2025 20:45:35 +0000 (17:45 -0300)
While CPU is a system device, it'd be better to use a path for
event_source devices when it checks PMU capability.

Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250509213017.204343-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/tests/shell/record_lbr.sh

index afad02d0180e023cc81ccbf9add9cf8af4cafced..6fcb5e52b9b4fcf6e6bb130c6f3b466f85c90603 100755 (executable)
@@ -4,7 +4,8 @@
 
 set -e
 
-if [ ! -f /sys/devices/cpu/caps/branches ] && [ ! -f /sys/devices/cpu_core/caps/branches ]
+if [ ! -f /sys/bus/event_source/devices/cpu/caps/branches ] &&
+   [ ! -f /sys/bus/event_source/devices/cpu_core/caps/branches ]
 then
   echo "Skip: only x86 CPUs support LBR"
   exit 2