1 2#define hotcpu_notifier(a, b) 3 4#define CPU_ONLINE 0x0002 /* CPU (unsigned)v is up */ 5#define CPU_UP_PREPARE 0x0003 /* CPU (unsigned)v coming up */ 6#define CPU_UP_CANCELED 0x0004 /* CPU (unsigned)v NOT coming up */ 7#define CPU_DOWN_PREPARE 0x0005 /* CPU (unsigned)v going down */ 8#define CPU_DOWN_FAILED 0x0006 /* CPU (unsigned)v NOT going down */ 9#define CPU_DEAD 0x0007 /* CPU (unsigned)v dead */ 10#define CPU_DYING 0x0008 /* CPU (unsigned)v not running any task, 11 * not handling interrupts, soon dead. 12 * Called on the dying cpu, interrupts 13 * are already disabled. Must not 14 * sleep, must not fail */ 15#define CPU_POST_DEAD 0x0009 /* CPU (unsigned)v dead, cpu_hotplug 16 * lock is dropped */ 17#define CPU_STARTING 0x000A /* CPU (unsigned)v soon running. 18 * Called on the new cpu, just before 19 * enabling interrupts. Must not sleep, 20 * must not fail */ 21#define CPU_DYING_IDLE 0x000B /* CPU (unsigned)v dying, reached 22 * idle loop. */ 23#define CPU_BROKEN 0x000C /* CPU (unsigned)v did not die properly, 24 * perhaps due to preemption. */ 25#define CPU_TASKS_FROZEN 0x0010 26 27#define CPU_ONLINE_FROZEN (CPU_ONLINE | CPU_TASKS_FROZEN) 28#define CPU_UP_PREPARE_FROZEN (CPU_UP_PREPARE | CPU_TASKS_FROZEN) 29#define CPU_UP_CANCELED_FROZEN (CPU_UP_CANCELED | CPU_TASKS_FROZEN) 30#define CPU_DOWN_PREPARE_FROZEN (CPU_DOWN_PREPARE | CPU_TASKS_FROZEN) 31#define CPU_DOWN_FAILED_FROZEN (CPU_DOWN_FAILED | CPU_TASKS_FROZEN) 32#define CPU_DEAD_FROZEN (CPU_DEAD | CPU_TASKS_FROZEN) 33#define CPU_DYING_FROZEN (CPU_DYING | CPU_TASKS_FROZEN) 34#define CPU_STARTING_FROZEN (CPU_STARTING | CPU_TASKS_FROZEN) 35