PMU_FL_PAIR
x86_pmu.flags |= PMU_FL_PAIR;
if (!(x86_pmu.flags & PMU_FL_PAIR))
if ((x86_pmu.flags & PMU_FL_PAIR) && amd_is_pair_event_code(&event->hw))
if (x86_pmu.flags & PMU_FL_PAIR) {