MSR_F15H_PTSC
rdmsrq(MSR_F15H_PTSC, new_ptsc);
rdmsrq(MSR_F15H_PTSC, event->hw.ptsc);
[PERF_MSR_PTSC] = { MSR_F15H_PTSC, &group_ptsc, test_ptsc, },
rdmsrq_safe(MSR_F15H_PTSC, &data->cpu_sw_pwr_ptsc[cu]);