//include/linux/cpumask.h
#define cpu_possible_mask ((const struct cpumask *)&__cpu_possible_mask)
#define cpu_online_mask ((const struct cpumask *)&__cpu_online_mask)
#define cpu_present_mask ((const struct cpumask *)&__cpu_present_mask)
#define cpu_active_mask ((const struct cpumask *)&__cpu_active_mask)
MTk 5.10 BSP中:
/sys/devices/system/cpu/sched_ctl/sched_core_pause_info 打印 cpu_active_mask 的值,offline和isolate都会从中删除cpu对应的bit
/sys/devices/system/cpu/online 打印 cpu_online_mask 的值,只打印online的cpu,是否被isolate不影响