find_pmu_for_event
found_etm = find_pmu_for_event(&cs_etm_pmu, 1, evsel);
found_spe = find_pmu_for_event(arm_spe_pmus, nr_spes, evsel);
found_ptt = find_pmu_for_event(hisi_ptt_pmus, nr_ptts, evsel);