tools/perf/arch/arm64/util/pmu.c

   1 // SPDX-License-Identifier: GPL-2.0
   2
   3 #include "../../../util/cpumap.h"
   4 #include "../../../util/pmu.h"
   5
   6 struct pmu_events_map *pmu_events_map__find(void)
   7 {
   8         struct perf_pmu *pmu = NULL;
   9
  10         while ((pmu = perf_pmu__scan(pmu))) {
  11                 if (!is_pmu_core(pmu->name))
  12                         continue;
  13
  14                 /*
  15                  * The cpumap should cover all CPUs. Otherwise, some CPUs may
  16                  * not support some events or have different event IDs.
  17                  */
  18                 if (pmu->cpus->nr != cpu__max_cpu())
  19                         return NULL;
  20
  21                 return perf_pmu__find_map(pmu);
  22         }
  23
  24         return NULL;
  25 }