PERF_REG_PMU_MASK_300
(PERF_REG_PMU_MASK_300 | (1ULL << PERF_REG_POWERPC_MMCR3) | \
PERF_REG_EXTENDED_MASK = PERF_REG_PMU_MASK_300;
(PERF_REG_PMU_MASK_300 | (1ULL << PERF_REG_POWERPC_MMCR3) | \
extended_mask = PERF_REG_PMU_MASK_300;