perf stat: Aggregate events using evsel->stats->aggr

Add a logic to aggregate counter values to the new evsel->stats->aggr.
This is not used yet so shadow stats are not updated.  But later patch
will convert the existing code to use it.

With that, we don't need to handle AGGR_GLOBAL specially anymore.  It
can use the same logic with counts, prev_counts and aggr_counts.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221018020227.85905-10-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 2 insertions, 7 deletions

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index c9fef26d0702..cdde5b5f8ad2 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1526,13 +1526,8 @@ void evsel__compute_deltas(struct evsel *evsel, int cpu_map_idx, int thread,
 	if (!evsel->prev_raw_counts)
 		return;
 
-	if (cpu_map_idx == -1) {
-		tmp = evsel->prev_raw_counts->aggr;
-		evsel->prev_raw_counts->aggr = *count;
-	} else {
-		tmp = *perf_counts(evsel->prev_raw_counts, cpu_map_idx, thread);
-		*perf_counts(evsel->prev_raw_counts, cpu_map_idx, thread) = *count;
-	}
+	tmp = *perf_counts(evsel->prev_raw_counts, cpu_map_idx, thread);
+	*perf_counts(evsel->prev_raw_counts, cpu_map_idx, thread) = *count;
 
 	count->val = count->val - tmp.val;
 	count->ena = count->ena - tmp.ena;