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Thomas Gleixnercff7d372016-02-26 18:43:28 +00001#ifndef __CPUHOTPLUG_H
2#define __CPUHOTPLUG_H
3
4enum cpuhp_state {
5 CPUHP_OFFLINE,
6 CPUHP_CREATE_THREADS,
Thomas Gleixner00e16c32016-07-13 17:16:09 +00007 CPUHP_PERF_PREPARE,
Thomas Gleixner95ca7922016-07-13 17:16:10 +00008 CPUHP_PERF_X86_PREPARE,
Thomas Gleixner1a246b92016-07-13 17:16:12 +00009 CPUHP_PERF_X86_UNCORE_PREP,
Richard Cochran96b2bd32016-07-13 17:16:13 +000010 CPUHP_PERF_X86_AMD_UNCORE_PREP,
Richard Cochran8b5b7732016-07-13 17:16:15 +000011 CPUHP_PERF_X86_RAPL_PREP,
Thomas Gleixnera409f5e2016-07-13 17:16:19 +000012 CPUHP_PERF_BFIN,
Thomas Gleixner57ecde42016-07-13 17:16:20 +000013 CPUHP_PERF_POWER,
Thomas Gleixnere3cfce12016-07-13 17:16:23 +000014 CPUHP_PERF_SUPERH,
Sebastian Andrzej Siewior48d7f6c2016-07-13 17:16:30 +000015 CPUHP_X86_HPET_DEAD,
Sebastian Andrzej Siewior148b9e22016-07-13 17:16:34 +000016 CPUHP_X86_APB_DEAD,
Thomas Gleixner7ee681b2016-07-13 17:16:29 +000017 CPUHP_WORKQUEUE_PREP,
Thomas Gleixnercff7d372016-02-26 18:43:28 +000018 CPUHP_NOTIFY_PREPARE,
19 CPUHP_BRINGUP_CPU,
Thomas Gleixnere69aab12016-02-26 18:43:43 +000020 CPUHP_AP_IDLE_DEAD,
Thomas Gleixner4baa0af2016-02-26 18:43:29 +000021 CPUHP_AP_OFFLINE,
Thomas Gleixner9cf72432016-03-10 12:54:09 +010022 CPUHP_AP_SCHED_STARTING,
Richard Cochran93131f72016-07-13 17:16:04 +000023 CPUHP_AP_IRQ_GIC_STARTING,
Richard Cochran6670a6d2016-07-13 17:16:05 +000024 CPUHP_AP_IRQ_GICV3_STARTING,
Richard Cochran6c034d12016-07-13 17:16:06 +000025 CPUHP_AP_IRQ_HIP04_STARTING,
Richard Cochrancb5ff2d2016-07-13 17:16:07 +000026 CPUHP_AP_IRQ_ARMADA_XP_STARTING,
27 CPUHP_AP_IRQ_ARMADA_CASC_STARTING,
Sebastian Andrzej Siewior7ca04bc2016-07-13 17:16:07 +000028 CPUHP_AP_IRQ_BCM2836_STARTING,
Sebastian Andrzej Siewior7fbbaeb2016-07-13 17:16:08 +000029 CPUHP_AP_ARM_MVEBU_COHERENCY,
Thomas Gleixner1a246b92016-07-13 17:16:12 +000030 CPUHP_AP_PERF_X86_UNCORE_STARTING,
Richard Cochran96b2bd32016-07-13 17:16:13 +000031 CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING,
Thomas Gleixner95ca7922016-07-13 17:16:10 +000032 CPUHP_AP_PERF_X86_STARTING,
Thomas Gleixner9744f7b2016-07-13 17:16:14 +000033 CPUHP_AP_PERF_X86_AMD_IBS_STARTING,
Richard Cochranf0704822016-07-13 17:16:16 +000034 CPUHP_AP_PERF_X86_CQM_STARTING,
Sebastian Andrzej Siewior77c34ef2016-07-13 17:16:18 +000035 CPUHP_AP_PERF_X86_CSTATE_STARTING,
Sebastian Andrzej Siewior25a77b52016-07-13 17:16:26 +000036 CPUHP_AP_PERF_XTENSA_STARTING,
Richard Cochran04d045a2016-07-13 17:16:49 +000037 CPUHP_AP_PERF_METAG_STARTING,
Richard Cochran65264e32016-07-13 17:16:53 +000038 CPUHP_AP_MIPS_OP_LOONGSON3_STARTING,
Thomas Gleixnere5b61ba2016-07-13 17:16:35 +000039 CPUHP_AP_ARM_VFP_STARTING,
Thomas Gleixner7d88eb62016-07-13 17:16:36 +000040 CPUHP_AP_PERF_ARM_STARTING,
Richard Cochran9eeb2262016-07-13 17:16:50 +000041 CPUHP_AP_ARM_L2X0_STARTING,
Richard Cochran7e86e8b2016-07-13 17:16:39 +000042 CPUHP_AP_ARM_ARCH_TIMER_STARTING,
Richard Cochran00c1d172016-07-13 17:16:41 +000043 CPUHP_AP_DUMMY_TIMER_STARTING,
Richard Cochran26b87682016-07-13 17:16:51 +000044 CPUHP_AP_ARM_TWD_STARTING,
Richard Cochran31e8e5d2016-07-13 17:16:42 +000045 CPUHP_AP_METAG_TIMER_STARTING,
Richard Cochranb0404162016-07-13 17:16:43 +000046 CPUHP_AP_QCOM_TIMER_STARTING,
Richard Cochran2dab9092016-07-13 17:16:44 +000047 CPUHP_AP_MIPS_GIC_TIMER_STARTING,
Thomas Gleixner8c18b2d2016-07-13 17:16:37 +000048 CPUHP_AP_KVM_STARTING,
Richard Cochran42ec50b2016-07-13 17:16:46 +000049 CPUHP_AP_KVM_ARM_VGIC_STARTING,
Richard Cochranb3c99502016-07-13 17:16:47 +000050 CPUHP_AP_KVM_ARM_TIMER_STARTING,
Richard Cochran4761adb2016-07-13 17:16:52 +000051 CPUHP_AP_ARM_XEN_STARTING,
Richard Cochran2b5283d2016-07-13 17:16:54 +000052 CPUHP_AP_ARM_CORESIGHT_STARTING,
Sebastian Andrzej Siewior58eb4572016-07-13 17:16:55 +000053 CPUHP_AP_ARM_CORESIGHT4_STARTING,
Sebastian Andrzej Siewior27c01a82016-07-13 17:16:56 +000054 CPUHP_AP_ARM64_ISNDEP_STARTING,
Richard Cochran911a3592016-07-13 17:16:45 +000055 CPUHP_AP_LEDTRIG_STARTING,
Thomas Gleixner4baa0af2016-02-26 18:43:29 +000056 CPUHP_AP_NOTIFY_STARTING,
57 CPUHP_AP_ONLINE,
58 CPUHP_TEARDOWN_CPU,
Thomas Gleixnerfc6d73d2016-02-26 18:43:40 +000059 CPUHP_AP_ONLINE_IDLE,
Thomas Gleixner1cf4f622016-02-26 18:43:39 +000060 CPUHP_AP_SMPBOOT_THREADS,
Sebastian Andrzej Siewior07d36c92016-07-13 17:16:03 +000061 CPUHP_AP_X86_VDSO_VMA_ONLINE,
Thomas Gleixner00e16c32016-07-13 17:16:09 +000062 CPUHP_AP_PERF_ONLINE,
Thomas Gleixner95ca7922016-07-13 17:16:10 +000063 CPUHP_AP_PERF_X86_ONLINE,
Thomas Gleixner1a246b92016-07-13 17:16:12 +000064 CPUHP_AP_PERF_X86_UNCORE_ONLINE,
Richard Cochran96b2bd32016-07-13 17:16:13 +000065 CPUHP_AP_PERF_X86_AMD_UNCORE_ONLINE,
Anna-Maria Gleixnerc6a84daa2016-07-13 17:16:28 +000066 CPUHP_AP_PERF_X86_AMD_POWER_ONLINE,
Richard Cochran8b5b7732016-07-13 17:16:15 +000067 CPUHP_AP_PERF_X86_RAPL_ONLINE,
Richard Cochranf0704822016-07-13 17:16:16 +000068 CPUHP_AP_PERF_X86_CQM_ONLINE,
Sebastian Andrzej Siewior77c34ef2016-07-13 17:16:18 +000069 CPUHP_AP_PERF_X86_CSTATE_ONLINE,
Thomas Gleixner4f0f8212016-07-13 17:16:21 +000070 CPUHP_AP_PERF_S390_CF_ONLINE,
Sebastian Andrzej Siewiore3d617f2016-07-13 17:16:22 +000071 CPUHP_AP_PERF_S390_SF_ONLINE,
Sebastian Andrzej Siewior28c94842016-07-13 17:16:24 +000072 CPUHP_AP_PERF_ARM_CCI_ONLINE,
Sebastian Andrzej Siewiorfdc15a32016-07-13 17:16:25 +000073 CPUHP_AP_PERF_ARM_CCN_ONLINE,
Thomas Gleixner7ee681b2016-07-13 17:16:29 +000074 CPUHP_AP_WORKQUEUE_ONLINE,
Thomas Gleixner1cf4f622016-02-26 18:43:39 +000075 CPUHP_AP_NOTIFY_ONLINE,
76 CPUHP_AP_ONLINE_DYN,
77 CPUHP_AP_ONLINE_DYN_END = CPUHP_AP_ONLINE_DYN + 30,
Sebastian Andrzej Siewior48d7f6c2016-07-13 17:16:30 +000078 CPUHP_AP_X86_HPET_ONLINE,
Sebastian Andrzej Siewior251a5fd2016-07-13 17:16:33 +000079 CPUHP_AP_X86_KVM_CLK_ONLINE,
Thomas Gleixneraaddd7d2016-03-10 12:54:19 +010080 CPUHP_AP_ACTIVE,
Thomas Gleixnercff7d372016-02-26 18:43:28 +000081 CPUHP_ONLINE,
82};
83
Thomas Gleixner5b7aa872016-02-26 18:43:33 +000084int __cpuhp_setup_state(enum cpuhp_state state, const char *name, bool invoke,
85 int (*startup)(unsigned int cpu),
86 int (*teardown)(unsigned int cpu));
87
88/**
89 * cpuhp_setup_state - Setup hotplug state callbacks with calling the callbacks
90 * @state: The state for which the calls are installed
91 * @name: Name of the callback (will be used in debug output)
92 * @startup: startup callback function
93 * @teardown: teardown callback function
94 *
95 * Installs the callback functions and invokes the startup callback on
96 * the present cpus which have already reached the @state.
97 */
98static inline int cpuhp_setup_state(enum cpuhp_state state,
99 const char *name,
100 int (*startup)(unsigned int cpu),
101 int (*teardown)(unsigned int cpu))
102{
103 return __cpuhp_setup_state(state, name, true, startup, teardown);
104}
105
106/**
107 * cpuhp_setup_state_nocalls - Setup hotplug state callbacks without calling the
108 * callbacks
109 * @state: The state for which the calls are installed
110 * @name: Name of the callback.
111 * @startup: startup callback function
112 * @teardown: teardown callback function
113 *
114 * Same as @cpuhp_setup_state except that no calls are executed are invoked
115 * during installation of this callback. NOP if SMP=n or HOTPLUG_CPU=n.
116 */
117static inline int cpuhp_setup_state_nocalls(enum cpuhp_state state,
118 const char *name,
119 int (*startup)(unsigned int cpu),
120 int (*teardown)(unsigned int cpu))
121{
122 return __cpuhp_setup_state(state, name, false, startup, teardown);
123}
124
125void __cpuhp_remove_state(enum cpuhp_state state, bool invoke);
126
127/**
128 * cpuhp_remove_state - Remove hotplug state callbacks and invoke the teardown
129 * @state: The state for which the calls are removed
130 *
131 * Removes the callback functions and invokes the teardown callback on
132 * the present cpus which have already reached the @state.
133 */
134static inline void cpuhp_remove_state(enum cpuhp_state state)
135{
136 __cpuhp_remove_state(state, true);
137}
138
139/**
140 * cpuhp_remove_state_nocalls - Remove hotplug state callbacks without invoking
141 * teardown
142 * @state: The state for which the calls are removed
143 */
144static inline void cpuhp_remove_state_nocalls(enum cpuhp_state state)
145{
146 __cpuhp_remove_state(state, false);
147}
148
Thomas Gleixner8df3e072016-02-26 18:43:41 +0000149#ifdef CONFIG_SMP
150void cpuhp_online_idle(enum cpuhp_state state);
151#else
152static inline void cpuhp_online_idle(enum cpuhp_state state) { }
153#endif
154
Thomas Gleixnercff7d372016-02-26 18:43:28 +0000155#endif