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,
23 CPUHP_ARM64_FPSIMD_DEAD,
24 CPUHP_ARM_OMAP_WAKE_DEAD,
26 CPUHP_BLOCK_SOFTIRQ_DEAD,
28 CPUHP_ACPI_CPUDRV_DEAD,
29 CPUHP_S390_PFAULT_DEAD,
31 CPUHP_POWER_NUMA_PREPARE,
32 CPUHP_HRTIMERS_PREPARE,
33 CPUHP_PROFILE_PREPARE,
38 CPUHP_MD_RAID5_PREPARE,
40 CPUHP_CPUIDLE_COUPLED_PREPARE,
41 CPUHP_POWERPC_PMAC_PREPARE,
42 CPUHP_POWERPC_MMU_CTX_PREPARE,
44 CPUHP_ARM_SHMOBILE_SCU_PREPARE,
45 CPUHP_SH_SH3X_PREPARE,
47 CPUHP_NOTF_ERR_INJ_PREPARE,
48 CPUHP_MIPS_SOC_PREPARE,
52 CPUHP_AP_SCHED_STARTING,
53 CPUHP_AP_RCUTREE_DYING,
54 CPUHP_AP_IRQ_GIC_STARTING,
55 CPUHP_AP_IRQ_GICV3_STARTING,
56 CPUHP_AP_IRQ_HIP04_STARTING,
57 CPUHP_AP_IRQ_ARMADA_XP_STARTING,
58 CPUHP_AP_IRQ_ARMADA_CASC_STARTING,
59 CPUHP_AP_IRQ_BCM2836_STARTING,
60 CPUHP_AP_ARM_MVEBU_COHERENCY,
61 CPUHP_AP_PERF_X86_UNCORE_STARTING,
62 CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING,
63 CPUHP_AP_PERF_X86_STARTING,
64 CPUHP_AP_PERF_X86_AMD_IBS_STARTING,
65 CPUHP_AP_PERF_X86_CQM_STARTING,
66 CPUHP_AP_PERF_X86_CSTATE_STARTING,
67 CPUHP_AP_PERF_XTENSA_STARTING,
68 CPUHP_AP_PERF_METAG_STARTING,
69 CPUHP_AP_MIPS_OP_LOONGSON3_STARTING,
70 CPUHP_AP_ARM_VFP_STARTING,
71 CPUHP_AP_PERF_ARM_STARTING,
72 CPUHP_AP_ARM_L2X0_STARTING,
73 CPUHP_AP_ARM_ARCH_TIMER_STARTING,
74 CPUHP_AP_ARM_GLOBAL_TIMER_STARTING,
75 CPUHP_AP_DUMMY_TIMER_STARTING,
76 CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING,
77 CPUHP_AP_ARM_TWD_STARTING,
78 CPUHP_AP_METAG_TIMER_STARTING,
79 CPUHP_AP_QCOM_TIMER_STARTING,
80 CPUHP_AP_ARMADA_TIMER_STARTING,
81 CPUHP_AP_MARCO_TIMER_STARTING,
82 CPUHP_AP_MIPS_GIC_TIMER_STARTING,
83 CPUHP_AP_ARC_TIMER_STARTING,
84 CPUHP_AP_KVM_STARTING,
85 CPUHP_AP_KVM_ARM_VGIC_INIT_STARTING,
86 CPUHP_AP_KVM_ARM_VGIC_STARTING,
87 CPUHP_AP_KVM_ARM_TIMER_STARTING,
88 CPUHP_AP_ARM_XEN_STARTING,
89 CPUHP_AP_ARM_CORESIGHT_STARTING,
90 CPUHP_AP_ARM_CORESIGHT4_STARTING,
91 CPUHP_AP_ARM64_ISNDEP_STARTING,
92 CPUHP_AP_SMPCFD_DYING,
93 CPUHP_AP_X86_TBOOT_DYING,
97 CPUHP_AP_SMPBOOT_THREADS,
98 CPUHP_AP_X86_VDSO_VMA_ONLINE,
100 CPUHP_AP_PERF_X86_ONLINE,
101 CPUHP_AP_PERF_X86_UNCORE_ONLINE,
102 CPUHP_AP_PERF_X86_AMD_UNCORE_ONLINE,
103 CPUHP_AP_PERF_X86_AMD_POWER_ONLINE,
104 CPUHP_AP_PERF_X86_RAPL_ONLINE,
105 CPUHP_AP_PERF_X86_CQM_ONLINE,
106 CPUHP_AP_PERF_X86_CSTATE_ONLINE,
107 CPUHP_AP_PERF_S390_CF_ONLINE,
108 CPUHP_AP_PERF_S390_SF_ONLINE,
109 CPUHP_AP_PERF_ARM_CCI_ONLINE,
110 CPUHP_AP_PERF_ARM_CCN_ONLINE,
111 CPUHP_AP_WORKQUEUE_ONLINE,
112 CPUHP_AP_RCUTREE_ONLINE,
113 CPUHP_AP_NOTIFY_ONLINE,
115 CPUHP_AP_ONLINE_DYN_END = CPUHP_AP_ONLINE_DYN + 30,
116 CPUHP_AP_X86_HPET_ONLINE,
117 CPUHP_AP_X86_KVM_CLK_ONLINE,
122 int __cpuhp_setup_state(enum cpuhp_state state, const char *name, bool invoke,
123 int (*startup)(unsigned int cpu),
124 int (*teardown)(unsigned int cpu), bool multi_instance);
127 * cpuhp_setup_state - Setup hotplug state callbacks with calling the callbacks
128 * @state: The state for which the calls are installed
129 * @name: Name of the callback (will be used in debug output)
130 * @startup: startup callback function
131 * @teardown: teardown callback function
133 * Installs the callback functions and invokes the startup callback on
134 * the present cpus which have already reached the @state.
136 static inline int cpuhp_setup_state(enum cpuhp_state state,
138 int (*startup)(unsigned int cpu),
139 int (*teardown)(unsigned int cpu))
141 return __cpuhp_setup_state(state, name, true, startup, teardown, false);
145 * cpuhp_setup_state_nocalls - Setup hotplug state callbacks without calling the
147 * @state: The state for which the calls are installed
148 * @name: Name of the callback.
149 * @startup: startup callback function
150 * @teardown: teardown callback function
152 * Same as @cpuhp_setup_state except that no calls are executed are invoked
153 * during installation of this callback. NOP if SMP=n or HOTPLUG_CPU=n.
155 static inline int cpuhp_setup_state_nocalls(enum cpuhp_state state,
157 int (*startup)(unsigned int cpu),
158 int (*teardown)(unsigned int cpu))
160 return __cpuhp_setup_state(state, name, false, startup, teardown,
165 * cpuhp_setup_state_multi - Add callbacks for multi state
166 * @state: The state for which the calls are installed
167 * @name: Name of the callback.
168 * @startup: startup callback function
169 * @teardown: teardown callback function
171 * Sets the internal multi_instance flag and prepares a state to work as a multi
172 * instance callback. No callbacks are invoked at this point. The callbacks are
173 * invoked once an instance for this state are registered via
174 * @cpuhp_state_add_instance or @cpuhp_state_add_instance_nocalls.
176 static inline int cpuhp_setup_state_multi(enum cpuhp_state state,
178 int (*startup)(unsigned int cpu,
179 struct hlist_node *node),
180 int (*teardown)(unsigned int cpu,
181 struct hlist_node *node))
183 return __cpuhp_setup_state(state, name, false,
185 (void *) teardown, true);
188 int __cpuhp_state_add_instance(enum cpuhp_state state, struct hlist_node *node,
192 * cpuhp_state_add_instance - Add an instance for a state and invoke startup
194 * @state: The state for which the instance is installed
195 * @node: The node for this individual state.
197 * Installs the instance for the @state and invokes the startup callback on
198 * the present cpus which have already reached the @state. The @state must have
199 * been earlier marked as multi-instance by @cpuhp_setup_state_multi.
201 static inline int cpuhp_state_add_instance(enum cpuhp_state state,
202 struct hlist_node *node)
204 return __cpuhp_state_add_instance(state, node, true);
208 * cpuhp_state_add_instance_nocalls - Add an instance for a state without
209 * invoking the startup callback.
210 * @state: The state for which the instance is installed
211 * @node: The node for this individual state.
213 * Installs the instance for the @state The @state must have been earlier
214 * marked as multi-instance by @cpuhp_setup_state_multi.
216 static inline int cpuhp_state_add_instance_nocalls(enum cpuhp_state state,
217 struct hlist_node *node)
219 return __cpuhp_state_add_instance(state, node, false);
222 void __cpuhp_remove_state(enum cpuhp_state state, bool invoke);
225 * cpuhp_remove_state - Remove hotplug state callbacks and invoke the teardown
226 * @state: The state for which the calls are removed
228 * Removes the callback functions and invokes the teardown callback on
229 * the present cpus which have already reached the @state.
231 static inline void cpuhp_remove_state(enum cpuhp_state state)
233 __cpuhp_remove_state(state, true);
237 * cpuhp_remove_state_nocalls - Remove hotplug state callbacks without invoking
239 * @state: The state for which the calls are removed
241 static inline void cpuhp_remove_state_nocalls(enum cpuhp_state state)
243 __cpuhp_remove_state(state, false);
247 * cpuhp_remove_multi_state - Remove hotplug multi state callback
248 * @state: The state for which the calls are removed
250 * Removes the callback functions from a multi state. This is the reverse of
251 * cpuhp_setup_state_multi(). All instances should have been removed before
252 * invoking this function.
254 static inline void cpuhp_remove_multi_state(enum cpuhp_state state)
256 __cpuhp_remove_state(state, false);
259 int __cpuhp_state_remove_instance(enum cpuhp_state state,
260 struct hlist_node *node, bool invoke);
263 * cpuhp_state_remove_instance - Remove hotplug instance from state and invoke
264 * the teardown callback
265 * @state: The state from which the instance is removed
266 * @node: The node for this individual state.
268 * Removes the instance and invokes the teardown callback on the present cpus
269 * which have already reached the @state.
271 static inline int cpuhp_state_remove_instance(enum cpuhp_state state,
272 struct hlist_node *node)
274 return __cpuhp_state_remove_instance(state, node, true);
278 * cpuhp_state_remove_instance_nocalls - Remove hotplug instance from state
279 * without invoking the reatdown callback
280 * @state: The state from which the instance is removed
281 * @node: The node for this individual state.
283 * Removes the instance without invoking the teardown callback.
285 static inline int cpuhp_state_remove_instance_nocalls(enum cpuhp_state state,
286 struct hlist_node *node)
288 return __cpuhp_state_remove_instance(state, node, false);
292 void cpuhp_online_idle(enum cpuhp_state state);
294 static inline void cpuhp_online_idle(enum cpuhp_state state) { }