DSU_PMU_MAX_HW_CNTRS
for_each_set_bit(i, &overflow, DSU_PMU_MAX_HW_CNTRS) {
#define DSU_PMU_HW_COUNTER_MASK (DSU_PMU_MAX_HW_CNTRS - 1)
if (bitmap_empty(dsu_pmu->hw_events.used_mask, DSU_PMU_MAX_HW_CNTRS))
DECLARE_BITMAP(used_mask, DSU_PMU_MAX_HW_CNTRS);
struct perf_event *events[DSU_PMU_MAX_HW_CNTRS];