4 #include <linux/types.h>
10 CPUHP_PERF_X86_PREPARE,
11 CPUHP_PERF_X86_UNCORE_PREP,
12 CPUHP_PERF_X86_AMD_UNCORE_PREP,
13 CPUHP_PERF_X86_RAPL_PREP,
21 CPUHP_MM_WRITEBACK_DEAD,
23 CPUHP_NET_MVNETA_DEAD,
25 CPUHP_ARM64_FPSIMD_DEAD,
26 CPUHP_ARM_OMAP_WAKE_DEAD,
28 CPUHP_BLOCK_SOFTIRQ_DEAD,
30 CPUHP_ACPI_CPUDRV_DEAD,
31 CPUHP_S390_PFAULT_DEAD,
34 CPUHP_POWER_NUMA_PREPARE,
35 CPUHP_HRTIMERS_PREPARE,
36 CPUHP_PROFILE_PREPARE,
41 CPUHP_MD_RAID5_PREPARE,
43 CPUHP_CPUIDLE_COUPLED_PREPARE,
44 CPUHP_POWERPC_PMAC_PREPARE,
45 CPUHP_POWERPC_MMU_CTX_PREPARE,
47 CPUHP_ARM_SHMOBILE_SCU_PREPARE,
48 CPUHP_SH_SH3X_PREPARE,
51 CPUHP_NOTF_ERR_INJ_PREPARE,
52 CPUHP_MIPS_SOC_PREPARE,
56 CPUHP_AP_SCHED_STARTING,
57 CPUHP_AP_RCUTREE_DYING,
58 CPUHP_AP_IRQ_GIC_STARTING,
59 CPUHP_AP_IRQ_GICV3_STARTING,
60 CPUHP_AP_IRQ_HIP04_STARTING,
61 CPUHP_AP_IRQ_ARMADA_XP_STARTING,
62 CPUHP_AP_IRQ_ARMADA_CASC_STARTING,
63 CPUHP_AP_IRQ_BCM2836_STARTING,
64 CPUHP_AP_ARM_MVEBU_COHERENCY,
65 CPUHP_AP_PERF_X86_UNCORE_STARTING,
66 CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING,
67 CPUHP_AP_PERF_X86_STARTING,
68 CPUHP_AP_PERF_X86_AMD_IBS_STARTING,
69 CPUHP_AP_PERF_X86_CQM_STARTING,
70 CPUHP_AP_PERF_X86_CSTATE_STARTING,
71 CPUHP_AP_PERF_XTENSA_STARTING,
72 CPUHP_AP_PERF_METAG_STARTING,
73 CPUHP_AP_MIPS_OP_LOONGSON3_STARTING,
74 CPUHP_AP_ARM_VFP_STARTING,
75 CPUHP_AP_ARM64_DEBUG_MONITORS_STARTING,
76 CPUHP_AP_PERF_ARM_HW_BREAKPOINT_STARTING,
77 CPUHP_AP_PERF_ARM_STARTING,
78 CPUHP_AP_ARM_L2X0_STARTING,
79 CPUHP_AP_ARM_ARCH_TIMER_STARTING,
80 CPUHP_AP_ARM_GLOBAL_TIMER_STARTING,
81 CPUHP_AP_DUMMY_TIMER_STARTING,
82 CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING,
83 CPUHP_AP_ARM_TWD_STARTING,
84 CPUHP_AP_METAG_TIMER_STARTING,
85 CPUHP_AP_QCOM_TIMER_STARTING,
86 CPUHP_AP_ARMADA_TIMER_STARTING,
87 CPUHP_AP_MARCO_TIMER_STARTING,
88 CPUHP_AP_MIPS_GIC_TIMER_STARTING,
89 CPUHP_AP_ARC_TIMER_STARTING,
90 CPUHP_AP_KVM_STARTING,
91 CPUHP_AP_KVM_ARM_VGIC_INIT_STARTING,
92 CPUHP_AP_KVM_ARM_VGIC_STARTING,
93 CPUHP_AP_KVM_ARM_TIMER_STARTING,
94 CPUHP_AP_ARM_XEN_STARTING,
95 CPUHP_AP_ARM_CORESIGHT_STARTING,
96 CPUHP_AP_ARM_CORESIGHT4_STARTING,
97 CPUHP_AP_ARM64_ISNDEP_STARTING,
98 CPUHP_AP_SMPCFD_DYING,
99 CPUHP_AP_X86_TBOOT_DYING,
102 CPUHP_AP_ONLINE_IDLE,
103 CPUHP_AP_SMPBOOT_THREADS,
104 CPUHP_AP_X86_VDSO_VMA_ONLINE,
105 CPUHP_AP_PERF_ONLINE,
106 CPUHP_AP_PERF_X86_ONLINE,
107 CPUHP_AP_PERF_X86_UNCORE_ONLINE,
108 CPUHP_AP_PERF_X86_AMD_UNCORE_ONLINE,
109 CPUHP_AP_PERF_X86_AMD_POWER_ONLINE,
110 CPUHP_AP_PERF_X86_RAPL_ONLINE,
111 CPUHP_AP_PERF_X86_CQM_ONLINE,
112 CPUHP_AP_PERF_X86_CSTATE_ONLINE,
113 CPUHP_AP_PERF_S390_CF_ONLINE,
114 CPUHP_AP_PERF_S390_SF_ONLINE,
115 CPUHP_AP_PERF_ARM_CCI_ONLINE,
116 CPUHP_AP_PERF_ARM_CCN_ONLINE,
117 CPUHP_AP_WORKQUEUE_ONLINE,
118 CPUHP_AP_RCUTREE_ONLINE,
119 CPUHP_AP_NOTIFY_ONLINE,
121 CPUHP_AP_ONLINE_DYN_END = CPUHP_AP_ONLINE_DYN + 30,
122 CPUHP_AP_X86_HPET_ONLINE,
123 CPUHP_AP_X86_KVM_CLK_ONLINE,
128 int __cpuhp_setup_state(enum cpuhp_state state, const char *name, bool invoke,
129 int (*startup)(unsigned int cpu),
130 int (*teardown)(unsigned int cpu), bool multi_instance);
133 * cpuhp_setup_state - Setup hotplug state callbacks with calling the callbacks
134 * @state: The state for which the calls are installed
135 * @name: Name of the callback (will be used in debug output)
136 * @startup: startup callback function
137 * @teardown: teardown callback function
139 * Installs the callback functions and invokes the startup callback on
140 * the present cpus which have already reached the @state.
142 static inline int cpuhp_setup_state(enum cpuhp_state state,
144 int (*startup)(unsigned int cpu),
145 int (*teardown)(unsigned int cpu))
147 return __cpuhp_setup_state(state, name, true, startup, teardown, false);
151 * cpuhp_setup_state_nocalls - Setup hotplug state callbacks without calling the
153 * @state: The state for which the calls are installed
154 * @name: Name of the callback.
155 * @startup: startup callback function
156 * @teardown: teardown callback function
158 * Same as @cpuhp_setup_state except that no calls are executed are invoked
159 * during installation of this callback. NOP if SMP=n or HOTPLUG_CPU=n.
161 static inline int cpuhp_setup_state_nocalls(enum cpuhp_state state,
163 int (*startup)(unsigned int cpu),
164 int (*teardown)(unsigned int cpu))
166 return __cpuhp_setup_state(state, name, false, startup, teardown,
171 * cpuhp_setup_state_multi - Add callbacks for multi state
172 * @state: The state for which the calls are installed
173 * @name: Name of the callback.
174 * @startup: startup callback function
175 * @teardown: teardown callback function
177 * Sets the internal multi_instance flag and prepares a state to work as a multi
178 * instance callback. No callbacks are invoked at this point. The callbacks are
179 * invoked once an instance for this state are registered via
180 * @cpuhp_state_add_instance or @cpuhp_state_add_instance_nocalls.
182 static inline int cpuhp_setup_state_multi(enum cpuhp_state state,
184 int (*startup)(unsigned int cpu,
185 struct hlist_node *node),
186 int (*teardown)(unsigned int cpu,
187 struct hlist_node *node))
189 return __cpuhp_setup_state(state, name, false,
191 (void *) teardown, true);
194 int __cpuhp_state_add_instance(enum cpuhp_state state, struct hlist_node *node,
198 * cpuhp_state_add_instance - Add an instance for a state and invoke startup
200 * @state: The state for which the instance is installed
201 * @node: The node for this individual state.
203 * Installs the instance for the @state and invokes the startup callback on
204 * the present cpus which have already reached the @state. The @state must have
205 * been earlier marked as multi-instance by @cpuhp_setup_state_multi.
207 static inline int cpuhp_state_add_instance(enum cpuhp_state state,
208 struct hlist_node *node)
210 return __cpuhp_state_add_instance(state, node, true);
214 * cpuhp_state_add_instance_nocalls - Add an instance for a state without
215 * invoking the startup callback.
216 * @state: The state for which the instance is installed
217 * @node: The node for this individual state.
219 * Installs the instance for the @state The @state must have been earlier
220 * marked as multi-instance by @cpuhp_setup_state_multi.
222 static inline int cpuhp_state_add_instance_nocalls(enum cpuhp_state state,
223 struct hlist_node *node)
225 return __cpuhp_state_add_instance(state, node, false);
228 void __cpuhp_remove_state(enum cpuhp_state state, bool invoke);
231 * cpuhp_remove_state - Remove hotplug state callbacks and invoke the teardown
232 * @state: The state for which the calls are removed
234 * Removes the callback functions and invokes the teardown callback on
235 * the present cpus which have already reached the @state.
237 static inline void cpuhp_remove_state(enum cpuhp_state state)
239 __cpuhp_remove_state(state, true);
243 * cpuhp_remove_state_nocalls - Remove hotplug state callbacks without invoking
245 * @state: The state for which the calls are removed
247 static inline void cpuhp_remove_state_nocalls(enum cpuhp_state state)
249 __cpuhp_remove_state(state, false);
253 * cpuhp_remove_multi_state - Remove hotplug multi state callback
254 * @state: The state for which the calls are removed
256 * Removes the callback functions from a multi state. This is the reverse of
257 * cpuhp_setup_state_multi(). All instances should have been removed before
258 * invoking this function.
260 static inline void cpuhp_remove_multi_state(enum cpuhp_state state)
262 __cpuhp_remove_state(state, false);
265 int __cpuhp_state_remove_instance(enum cpuhp_state state,
266 struct hlist_node *node, bool invoke);
269 * cpuhp_state_remove_instance - Remove hotplug instance from state and invoke
270 * the teardown callback
271 * @state: The state from which the instance is removed
272 * @node: The node for this individual state.
274 * Removes the instance and invokes the teardown callback on the present cpus
275 * which have already reached the @state.
277 static inline int cpuhp_state_remove_instance(enum cpuhp_state state,
278 struct hlist_node *node)
280 return __cpuhp_state_remove_instance(state, node, true);
284 * cpuhp_state_remove_instance_nocalls - Remove hotplug instance from state
285 * without invoking the reatdown callback
286 * @state: The state from which the instance is removed
287 * @node: The node for this individual state.
289 * Removes the instance without invoking the teardown callback.
291 static inline int cpuhp_state_remove_instance_nocalls(enum cpuhp_state state,
292 struct hlist_node *node)
294 return __cpuhp_state_remove_instance(state, node, false);
298 void cpuhp_online_idle(enum cpuhp_state state);
300 static inline void cpuhp_online_idle(enum cpuhp_state state) { }