]>
Commit | Line | Data |
---|---|---|
cff7d378 TG |
1 | #ifndef __CPUHOTPLUG_H |
2 | #define __CPUHOTPLUG_H | |
3 | ||
4 | enum cpuhp_state { | |
5 | CPUHP_OFFLINE, | |
6 | CPUHP_CREATE_THREADS, | |
7 | CPUHP_NOTIFY_PREPARE, | |
8 | CPUHP_BRINGUP_CPU, | |
e69aab13 | 9 | CPUHP_AP_IDLE_DEAD, |
4baa0afc | 10 | CPUHP_AP_OFFLINE, |
9cf7243d | 11 | CPUHP_AP_SCHED_STARTING, |
4baa0afc TG |
12 | CPUHP_AP_NOTIFY_STARTING, |
13 | CPUHP_AP_ONLINE, | |
14 | CPUHP_TEARDOWN_CPU, | |
fc6d73d6 | 15 | CPUHP_AP_ONLINE_IDLE, |
1cf4f629 TG |
16 | CPUHP_AP_SMPBOOT_THREADS, |
17 | CPUHP_AP_NOTIFY_ONLINE, | |
18 | CPUHP_AP_ONLINE_DYN, | |
19 | CPUHP_AP_ONLINE_DYN_END = CPUHP_AP_ONLINE_DYN + 30, | |
aaddd7d1 | 20 | CPUHP_AP_ACTIVE, |
cff7d378 TG |
21 | CPUHP_ONLINE, |
22 | }; | |
23 | ||
5b7aa87e TG |
24 | int __cpuhp_setup_state(enum cpuhp_state state, const char *name, bool invoke, |
25 | int (*startup)(unsigned int cpu), | |
26 | int (*teardown)(unsigned int cpu)); | |
27 | ||
28 | /** | |
29 | * cpuhp_setup_state - Setup hotplug state callbacks with calling the callbacks | |
30 | * @state: The state for which the calls are installed | |
31 | * @name: Name of the callback (will be used in debug output) | |
32 | * @startup: startup callback function | |
33 | * @teardown: teardown callback function | |
34 | * | |
35 | * Installs the callback functions and invokes the startup callback on | |
36 | * the present cpus which have already reached the @state. | |
37 | */ | |
38 | static inline int cpuhp_setup_state(enum cpuhp_state state, | |
39 | const char *name, | |
40 | int (*startup)(unsigned int cpu), | |
41 | int (*teardown)(unsigned int cpu)) | |
42 | { | |
43 | return __cpuhp_setup_state(state, name, true, startup, teardown); | |
44 | } | |
45 | ||
46 | /** | |
47 | * cpuhp_setup_state_nocalls - Setup hotplug state callbacks without calling the | |
48 | * callbacks | |
49 | * @state: The state for which the calls are installed | |
50 | * @name: Name of the callback. | |
51 | * @startup: startup callback function | |
52 | * @teardown: teardown callback function | |
53 | * | |
54 | * Same as @cpuhp_setup_state except that no calls are executed are invoked | |
55 | * during installation of this callback. NOP if SMP=n or HOTPLUG_CPU=n. | |
56 | */ | |
57 | static inline int cpuhp_setup_state_nocalls(enum cpuhp_state state, | |
58 | const char *name, | |
59 | int (*startup)(unsigned int cpu), | |
60 | int (*teardown)(unsigned int cpu)) | |
61 | { | |
62 | return __cpuhp_setup_state(state, name, false, startup, teardown); | |
63 | } | |
64 | ||
65 | void __cpuhp_remove_state(enum cpuhp_state state, bool invoke); | |
66 | ||
67 | /** | |
68 | * cpuhp_remove_state - Remove hotplug state callbacks and invoke the teardown | |
69 | * @state: The state for which the calls are removed | |
70 | * | |
71 | * Removes the callback functions and invokes the teardown callback on | |
72 | * the present cpus which have already reached the @state. | |
73 | */ | |
74 | static inline void cpuhp_remove_state(enum cpuhp_state state) | |
75 | { | |
76 | __cpuhp_remove_state(state, true); | |
77 | } | |
78 | ||
79 | /** | |
80 | * cpuhp_remove_state_nocalls - Remove hotplug state callbacks without invoking | |
81 | * teardown | |
82 | * @state: The state for which the calls are removed | |
83 | */ | |
84 | static inline void cpuhp_remove_state_nocalls(enum cpuhp_state state) | |
85 | { | |
86 | __cpuhp_remove_state(state, false); | |
87 | } | |
88 | ||
8df3e07e TG |
89 | #ifdef CONFIG_SMP |
90 | void cpuhp_online_idle(enum cpuhp_state state); | |
91 | #else | |
92 | static inline void cpuhp_online_idle(enum cpuhp_state state) { } | |
93 | #endif | |
94 | ||
cff7d378 | 95 | #endif |