Commit | Line | Data |
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cff7d378 TG |
1 | #ifndef __CPUHOTPLUG_H |
2 | #define __CPUHOTPLUG_H | |
3 | ||
4 | enum cpuhp_state { | |
5 | CPUHP_OFFLINE, | |
6 | CPUHP_CREATE_THREADS, | |
00e16c3d | 7 | CPUHP_PERF_PREPARE, |
95ca792c | 8 | CPUHP_PERF_X86_PREPARE, |
cff7d378 TG |
9 | CPUHP_NOTIFY_PREPARE, |
10 | CPUHP_BRINGUP_CPU, | |
e69aab13 | 11 | CPUHP_AP_IDLE_DEAD, |
4baa0afc | 12 | CPUHP_AP_OFFLINE, |
9cf7243d | 13 | CPUHP_AP_SCHED_STARTING, |
93131f7a | 14 | CPUHP_AP_IRQ_GIC_STARTING, |
6670a6d8 | 15 | CPUHP_AP_IRQ_GICV3_STARTING, |
6c034d17 | 16 | CPUHP_AP_IRQ_HIP04_STARTING, |
cb5ff2d2 RC |
17 | CPUHP_AP_IRQ_ARMADA_XP_STARTING, |
18 | CPUHP_AP_IRQ_ARMADA_CASC_STARTING, | |
7ca04bc2 | 19 | CPUHP_AP_IRQ_BCM2836_STARTING, |
7fbbaebf | 20 | CPUHP_AP_ARM_MVEBU_COHERENCY, |
95ca792c | 21 | CPUHP_AP_PERF_X86_STARTING, |
4baa0afc TG |
22 | CPUHP_AP_NOTIFY_STARTING, |
23 | CPUHP_AP_ONLINE, | |
24 | CPUHP_TEARDOWN_CPU, | |
fc6d73d6 | 25 | CPUHP_AP_ONLINE_IDLE, |
1cf4f629 | 26 | CPUHP_AP_SMPBOOT_THREADS, |
07d36c9e | 27 | CPUHP_AP_X86_VDSO_VMA_ONLINE, |
00e16c3d | 28 | CPUHP_AP_PERF_ONLINE, |
95ca792c | 29 | CPUHP_AP_PERF_X86_ONLINE, |
1cf4f629 TG |
30 | CPUHP_AP_NOTIFY_ONLINE, |
31 | CPUHP_AP_ONLINE_DYN, | |
32 | CPUHP_AP_ONLINE_DYN_END = CPUHP_AP_ONLINE_DYN + 30, | |
aaddd7d1 | 33 | CPUHP_AP_ACTIVE, |
cff7d378 TG |
34 | CPUHP_ONLINE, |
35 | }; | |
36 | ||
5b7aa87e TG |
37 | int __cpuhp_setup_state(enum cpuhp_state state, const char *name, bool invoke, |
38 | int (*startup)(unsigned int cpu), | |
39 | int (*teardown)(unsigned int cpu)); | |
40 | ||
41 | /** | |
42 | * cpuhp_setup_state - Setup hotplug state callbacks with calling the callbacks | |
43 | * @state: The state for which the calls are installed | |
44 | * @name: Name of the callback (will be used in debug output) | |
45 | * @startup: startup callback function | |
46 | * @teardown: teardown callback function | |
47 | * | |
48 | * Installs the callback functions and invokes the startup callback on | |
49 | * the present cpus which have already reached the @state. | |
50 | */ | |
51 | static inline int cpuhp_setup_state(enum cpuhp_state state, | |
52 | const char *name, | |
53 | int (*startup)(unsigned int cpu), | |
54 | int (*teardown)(unsigned int cpu)) | |
55 | { | |
56 | return __cpuhp_setup_state(state, name, true, startup, teardown); | |
57 | } | |
58 | ||
59 | /** | |
60 | * cpuhp_setup_state_nocalls - Setup hotplug state callbacks without calling the | |
61 | * callbacks | |
62 | * @state: The state for which the calls are installed | |
63 | * @name: Name of the callback. | |
64 | * @startup: startup callback function | |
65 | * @teardown: teardown callback function | |
66 | * | |
67 | * Same as @cpuhp_setup_state except that no calls are executed are invoked | |
68 | * during installation of this callback. NOP if SMP=n or HOTPLUG_CPU=n. | |
69 | */ | |
70 | static inline int cpuhp_setup_state_nocalls(enum cpuhp_state state, | |
71 | const char *name, | |
72 | int (*startup)(unsigned int cpu), | |
73 | int (*teardown)(unsigned int cpu)) | |
74 | { | |
75 | return __cpuhp_setup_state(state, name, false, startup, teardown); | |
76 | } | |
77 | ||
78 | void __cpuhp_remove_state(enum cpuhp_state state, bool invoke); | |
79 | ||
80 | /** | |
81 | * cpuhp_remove_state - Remove hotplug state callbacks and invoke the teardown | |
82 | * @state: The state for which the calls are removed | |
83 | * | |
84 | * Removes the callback functions and invokes the teardown callback on | |
85 | * the present cpus which have already reached the @state. | |
86 | */ | |
87 | static inline void cpuhp_remove_state(enum cpuhp_state state) | |
88 | { | |
89 | __cpuhp_remove_state(state, true); | |
90 | } | |
91 | ||
92 | /** | |
93 | * cpuhp_remove_state_nocalls - Remove hotplug state callbacks without invoking | |
94 | * teardown | |
95 | * @state: The state for which the calls are removed | |
96 | */ | |
97 | static inline void cpuhp_remove_state_nocalls(enum cpuhp_state state) | |
98 | { | |
99 | __cpuhp_remove_state(state, false); | |
100 | } | |
101 | ||
8df3e07e TG |
102 | #ifdef CONFIG_SMP |
103 | void cpuhp_online_idle(enum cpuhp_state state); | |
104 | #else | |
105 | static inline void cpuhp_online_idle(enum cpuhp_state state) { } | |
106 | #endif | |
107 | ||
cff7d378 | 108 | #endif |