perf stat: Use perf_evsel__read_cb in read_counter
Replacing __perf_evsel__read_on_cpu function with perf_evsel__read_cb function. The read_cb callback will be used later for global aggregation counter values as well. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Matt Fleming <matt.fleming@intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1416562275-12404-5-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -388,6 +388,26 @@ static void update_shadow_stats(struct perf_evsel *counter, u64 *count)
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update_stats(&runtime_itlb_cache_stats[0], count[0]);
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update_stats(&runtime_itlb_cache_stats[0], count[0]);
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}
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}
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static int read_cb(struct perf_evsel *evsel, int cpu, int thread __maybe_unused,
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struct perf_counts_values *count)
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{
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switch (aggr_mode) {
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case AGGR_CORE:
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case AGGR_SOCKET:
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case AGGR_NONE:
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perf_evsel__compute_deltas(evsel, cpu, count);
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perf_counts_values__scale(count, scale, NULL);
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evsel->counts->cpu[cpu] = *count;
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update_shadow_stats(evsel, count->values);
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break;
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case AGGR_GLOBAL:
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default:
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break;
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}
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return 0;
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}
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/*
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/*
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* Read out the results of a single counter:
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* Read out the results of a single counter:
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* aggregate counts across CPUs in system-wide mode
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* aggregate counts across CPUs in system-wide mode
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@ -424,16 +444,11 @@ static int read_counter_aggr(struct perf_evsel *counter)
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*/
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*/
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static int read_counter(struct perf_evsel *counter)
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static int read_counter(struct perf_evsel *counter)
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{
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{
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u64 *count;
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int cpu;
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int cpu;
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for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
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for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
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if (__perf_evsel__read_on_cpu(counter, cpu, 0, scale) < 0)
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if (perf_evsel__read_cb(counter, cpu, 0, read_cb))
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return -1;
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return -1;
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count = counter->counts->cpu[cpu].values;
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update_shadow_stats(counter, count);
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}
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}
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return 0;
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return 0;
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