8 CPUHP_PERF_X86_PREPARE,
9 CPUHP_PERF_X86_UNCORE_PREP,
10 CPUHP_PERF_X86_AMD_UNCORE_PREP,
11 CPUHP_PERF_X86_RAPL_PREP,
19 CPUHP_MM_WRITEBACK_DEAD,
21 CPUHP_NET_MVNETA_DEAD,
24 CPUHP_POWER_NUMA_PREPARE,
25 CPUHP_HRTIMERS_PREPARE,
26 CPUHP_PROFILE_PREPARE,
31 CPUHP_MD_RAID5_PREPARE,
33 CPUHP_CPUIDLE_COUPLED_PREPARE,
34 CPUHP_POWERPC_PMAC_PREPARE,
35 CPUHP_POWERPC_MMU_CTX_PREPARE,
41 CPUHP_AP_SCHED_STARTING,
42 CPUHP_AP_RCUTREE_DYING,
43 CPUHP_AP_IRQ_GIC_STARTING,
44 CPUHP_AP_IRQ_GICV3_STARTING,
45 CPUHP_AP_IRQ_HIP04_STARTING,
46 CPUHP_AP_IRQ_ARMADA_XP_STARTING,
47 CPUHP_AP_IRQ_ARMADA_CASC_STARTING,
48 CPUHP_AP_IRQ_BCM2836_STARTING,
49 CPUHP_AP_ARM_MVEBU_COHERENCY,
50 CPUHP_AP_PERF_X86_UNCORE_STARTING,
51 CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING,
52 CPUHP_AP_PERF_X86_STARTING,
53 CPUHP_AP_PERF_X86_AMD_IBS_STARTING,
54 CPUHP_AP_PERF_X86_CQM_STARTING,
55 CPUHP_AP_PERF_X86_CSTATE_STARTING,
56 CPUHP_AP_PERF_XTENSA_STARTING,
57 CPUHP_AP_PERF_METAG_STARTING,
58 CPUHP_AP_MIPS_OP_LOONGSON3_STARTING,
59 CPUHP_AP_ARM_VFP_STARTING,
60 CPUHP_AP_PERF_ARM_STARTING,
61 CPUHP_AP_ARM_L2X0_STARTING,
62 CPUHP_AP_ARM_ARCH_TIMER_STARTING,
63 CPUHP_AP_ARM_GLOBAL_TIMER_STARTING,
64 CPUHP_AP_DUMMY_TIMER_STARTING,
65 CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING,
66 CPUHP_AP_ARM_TWD_STARTING,
67 CPUHP_AP_METAG_TIMER_STARTING,
68 CPUHP_AP_QCOM_TIMER_STARTING,
69 CPUHP_AP_ARMADA_TIMER_STARTING,
70 CPUHP_AP_MARCO_TIMER_STARTING,
71 CPUHP_AP_MIPS_GIC_TIMER_STARTING,
72 CPUHP_AP_ARC_TIMER_STARTING,
73 CPUHP_AP_KVM_STARTING,
74 CPUHP_AP_KVM_ARM_VGIC_INIT_STARTING,
75 CPUHP_AP_KVM_ARM_VGIC_STARTING,
76 CPUHP_AP_KVM_ARM_TIMER_STARTING,
77 CPUHP_AP_ARM_XEN_STARTING,
78 CPUHP_AP_ARM_CORESIGHT_STARTING,
79 CPUHP_AP_ARM_CORESIGHT4_STARTING,
80 CPUHP_AP_ARM64_ISNDEP_STARTING,
81 CPUHP_AP_SMPCFD_DYING,
82 CPUHP_AP_X86_TBOOT_DYING,
86 CPUHP_AP_SMPBOOT_THREADS,
87 CPUHP_AP_X86_VDSO_VMA_ONLINE,
89 CPUHP_AP_PERF_X86_ONLINE,
90 CPUHP_AP_PERF_X86_UNCORE_ONLINE,
91 CPUHP_AP_PERF_X86_AMD_UNCORE_ONLINE,
92 CPUHP_AP_PERF_X86_AMD_POWER_ONLINE,
93 CPUHP_AP_PERF_X86_RAPL_ONLINE,
94 CPUHP_AP_PERF_X86_CQM_ONLINE,
95 CPUHP_AP_PERF_X86_CSTATE_ONLINE,
96 CPUHP_AP_PERF_S390_CF_ONLINE,
97 CPUHP_AP_PERF_S390_SF_ONLINE,
98 CPUHP_AP_PERF_ARM_CCI_ONLINE,
99 CPUHP_AP_PERF_ARM_CCN_ONLINE,
100 CPUHP_AP_WORKQUEUE_ONLINE,
101 CPUHP_AP_RCUTREE_ONLINE,
102 CPUHP_AP_NOTIFY_ONLINE,
104 CPUHP_AP_ONLINE_DYN_END = CPUHP_AP_ONLINE_DYN + 30,
105 CPUHP_AP_X86_HPET_ONLINE,
106 CPUHP_AP_X86_KVM_CLK_ONLINE,
111 int __cpuhp_setup_state(enum cpuhp_state state, const char *name, bool invoke,
112 int (*startup)(unsigned int cpu),
113 int (*teardown)(unsigned int cpu), bool multi_instance);
116 * cpuhp_setup_state - Setup hotplug state callbacks with calling the callbacks
117 * @state: The state for which the calls are installed
118 * @name: Name of the callback (will be used in debug output)
119 * @startup: startup callback function
120 * @teardown: teardown callback function
122 * Installs the callback functions and invokes the startup callback on
123 * the present cpus which have already reached the @state.
125 static inline int cpuhp_setup_state(enum cpuhp_state state,
127 int (*startup)(unsigned int cpu),
128 int (*teardown)(unsigned int cpu))
130 return __cpuhp_setup_state(state, name, true, startup, teardown, false);
134 * cpuhp_setup_state_nocalls - Setup hotplug state callbacks without calling the
136 * @state: The state for which the calls are installed
137 * @name: Name of the callback.
138 * @startup: startup callback function
139 * @teardown: teardown callback function
141 * Same as @cpuhp_setup_state except that no calls are executed are invoked
142 * during installation of this callback. NOP if SMP=n or HOTPLUG_CPU=n.
144 static inline int cpuhp_setup_state_nocalls(enum cpuhp_state state,
146 int (*startup)(unsigned int cpu),
147 int (*teardown)(unsigned int cpu))
149 return __cpuhp_setup_state(state, name, false, startup, teardown,
154 * cpuhp_setup_state_multi - Add callbacks for multi state
155 * @state: The state for which the calls are installed
156 * @name: Name of the callback.
157 * @startup: startup callback function
158 * @teardown: teardown callback function
160 * Sets the internal multi_instance flag and prepares a state to work as a multi
161 * instance callback. No callbacks are invoked at this point. The callbacks are
162 * invoked once an instance for this state are registered via
163 * @cpuhp_state_add_instance or @cpuhp_state_add_instance_nocalls.
165 static inline int cpuhp_setup_state_multi(enum cpuhp_state state,
167 int (*startup)(unsigned int cpu,
168 struct hlist_node *node),
169 int (*teardown)(unsigned int cpu,
170 struct hlist_node *node))
172 return __cpuhp_setup_state(state, name, false,
174 (void *) teardown, true);
177 int __cpuhp_state_add_instance(enum cpuhp_state state, struct hlist_node *node,
181 * cpuhp_state_add_instance - Add an instance for a state and invoke startup
183 * @state: The state for which the instance is installed
184 * @node: The node for this individual state.
186 * Installs the instance for the @state and invokes the startup callback on
187 * the present cpus which have already reached the @state. The @state must have
188 * been earlier marked as multi-instance by @cpuhp_setup_state_multi.
190 static inline int cpuhp_state_add_instance(enum cpuhp_state state,
191 struct hlist_node *node)
193 return __cpuhp_state_add_instance(state, node, true);
197 * cpuhp_state_add_instance_nocalls - Add an instance for a state without
198 * invoking the startup callback.
199 * @state: The state for which the instance is installed
200 * @node: The node for this individual state.
202 * Installs the instance for the @state The @state must have been earlier
203 * marked as multi-instance by @cpuhp_setup_state_multi.
205 static inline int cpuhp_state_add_instance_nocalls(enum cpuhp_state state,
206 struct hlist_node *node)
208 return __cpuhp_state_add_instance(state, node, false);
211 void __cpuhp_remove_state(enum cpuhp_state state, bool invoke);
214 * cpuhp_remove_state - Remove hotplug state callbacks and invoke the teardown
215 * @state: The state for which the calls are removed
217 * Removes the callback functions and invokes the teardown callback on
218 * the present cpus which have already reached the @state.
220 static inline void cpuhp_remove_state(enum cpuhp_state state)
222 __cpuhp_remove_state(state, true);
226 * cpuhp_remove_state_nocalls - Remove hotplug state callbacks without invoking
228 * @state: The state for which the calls are removed
230 static inline void cpuhp_remove_state_nocalls(enum cpuhp_state state)
232 __cpuhp_remove_state(state, false);
236 * cpuhp_remove_multi_state - Remove hotplug multi state callback
237 * @state: The state for which the calls are removed
239 * Removes the callback functions from a multi state. This is the reverse of
240 * cpuhp_setup_state_multi(). All instances should have been removed before
241 * invoking this function.
243 static inline void cpuhp_remove_multi_state(enum cpuhp_state state)
245 __cpuhp_remove_state(state, false);
248 int __cpuhp_state_remove_instance(enum cpuhp_state state,
249 struct hlist_node *node, bool invoke);
252 * cpuhp_state_remove_instance - Remove hotplug instance from state and invoke
253 * the teardown callback
254 * @state: The state from which the instance is removed
255 * @node: The node for this individual state.
257 * Removes the instance and invokes the teardown callback on the present cpus
258 * which have already reached the @state.
260 static inline int cpuhp_state_remove_instance(enum cpuhp_state state,
261 struct hlist_node *node)
263 return __cpuhp_state_remove_instance(state, node, true);
267 * cpuhp_state_remove_instance_nocalls - Remove hotplug instance from state
268 * without invoking the reatdown callback
269 * @state: The state from which the instance is removed
270 * @node: The node for this individual state.
272 * Removes the instance without invoking the teardown callback.
274 static inline int cpuhp_state_remove_instance_nocalls(enum cpuhp_state state,
275 struct hlist_node *node)
277 return __cpuhp_state_remove_instance(state, node, false);
281 void cpuhp_online_idle(enum cpuhp_state state);
283 static inline void cpuhp_online_idle(enum cpuhp_state state) { }