4 #include <linux/types.h>
10 CPUHP_PERF_X86_PREPARE,
11 CPUHP_PERF_X86_AMD_UNCORE_PREP,
20 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,
29 CPUHP_ACPI_CPUDRV_DEAD,
30 CPUHP_S390_PFAULT_DEAD,
35 CPUHP_PERCPU_CNT_DEAD,
37 CPUHP_PAGE_ALLOC_DEAD,
40 CPUHP_IOMMU_INTEL_DEAD,
41 CPUHP_LUSTRE_CFS_DEAD,
42 CPUHP_SCSI_BNX2FC_DEAD,
43 CPUHP_SCSI_BNX2I_DEAD,
45 CPUHP_POWER_NUMA_PREPARE,
46 CPUHP_HRTIMERS_PREPARE,
47 CPUHP_PROFILE_PREPARE,
52 CPUHP_MD_RAID5_PREPARE,
54 CPUHP_CPUIDLE_COUPLED_PREPARE,
55 CPUHP_POWERPC_PMAC_PREPARE,
56 CPUHP_POWERPC_MMU_CTX_PREPARE,
58 CPUHP_XEN_EVTCHN_PREPARE,
59 CPUHP_ARM_SHMOBILE_SCU_PREPARE,
60 CPUHP_SH_SH3X_PREPARE,
61 CPUHP_NET_FLOW_PREPARE,
62 CPUHP_TOPOLOGY_PREPARE,
63 CPUHP_NET_IUCV_PREPARE,
65 CPUHP_TRACE_RB_PREPARE,
67 CPUHP_MM_ZSWP_MEM_PREPARE,
68 CPUHP_MM_ZSWP_POOL_PREPARE,
69 CPUHP_KVM_PPC_BOOK3S_PREPARE,
72 CPUHP_MIPS_SOC_PREPARE,
74 CPUHP_BP_PREPARE_DYN_END = CPUHP_BP_PREPARE_DYN + 20,
78 CPUHP_AP_SCHED_STARTING,
79 CPUHP_AP_RCUTREE_DYING,
80 CPUHP_AP_IRQ_GIC_STARTING,
81 CPUHP_AP_IRQ_HIP04_STARTING,
82 CPUHP_AP_IRQ_ARMADA_XP_STARTING,
83 CPUHP_AP_IRQ_BCM2836_STARTING,
84 CPUHP_AP_ARM_MVEBU_COHERENCY,
85 CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING,
86 CPUHP_AP_PERF_X86_STARTING,
87 CPUHP_AP_PERF_X86_AMD_IBS_STARTING,
88 CPUHP_AP_PERF_X86_CQM_STARTING,
89 CPUHP_AP_PERF_X86_CSTATE_STARTING,
90 CPUHP_AP_PERF_XTENSA_STARTING,
91 CPUHP_AP_PERF_METAG_STARTING,
92 CPUHP_AP_MIPS_OP_LOONGSON3_STARTING,
93 CPUHP_AP_ARM_VFP_STARTING,
94 CPUHP_AP_ARM64_DEBUG_MONITORS_STARTING,
95 CPUHP_AP_PERF_ARM_HW_BREAKPOINT_STARTING,
96 CPUHP_AP_PERF_ARM_ACPI_STARTING,
97 CPUHP_AP_PERF_ARM_STARTING,
98 CPUHP_AP_ARM_L2X0_STARTING,
99 CPUHP_AP_ARM_ARCH_TIMER_STARTING,
100 CPUHP_AP_ARM_GLOBAL_TIMER_STARTING,
101 CPUHP_AP_JCORE_TIMER_STARTING,
102 CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING,
103 CPUHP_AP_ARM_TWD_STARTING,
104 CPUHP_AP_METAG_TIMER_STARTING,
105 CPUHP_AP_QCOM_TIMER_STARTING,
106 CPUHP_AP_ARMADA_TIMER_STARTING,
107 CPUHP_AP_MARCO_TIMER_STARTING,
108 CPUHP_AP_MIPS_GIC_TIMER_STARTING,
109 CPUHP_AP_ARC_TIMER_STARTING,
110 CPUHP_AP_KVM_STARTING,
111 CPUHP_AP_KVM_ARM_VGIC_INIT_STARTING,
112 CPUHP_AP_KVM_ARM_VGIC_STARTING,
113 CPUHP_AP_KVM_ARM_TIMER_STARTING,
114 /* Must be the last timer callback */
115 CPUHP_AP_DUMMY_TIMER_STARTING,
116 CPUHP_AP_ARM_XEN_STARTING,
117 CPUHP_AP_ARM_CORESIGHT_STARTING,
118 CPUHP_AP_ARM64_ISNDEP_STARTING,
119 CPUHP_AP_SMPCFD_DYING,
120 CPUHP_AP_X86_TBOOT_DYING,
123 CPUHP_AP_ONLINE_IDLE,
124 CPUHP_AP_SMPBOOT_THREADS,
125 CPUHP_AP_X86_VDSO_VMA_ONLINE,
126 CPUHP_AP_IRQ_AFFINITY_ONLINE,
127 CPUHP_AP_PERF_ONLINE,
128 CPUHP_AP_PERF_X86_ONLINE,
129 CPUHP_AP_PERF_X86_UNCORE_ONLINE,
130 CPUHP_AP_PERF_X86_AMD_UNCORE_ONLINE,
131 CPUHP_AP_PERF_X86_AMD_POWER_ONLINE,
132 CPUHP_AP_PERF_X86_RAPL_ONLINE,
133 CPUHP_AP_PERF_X86_CQM_ONLINE,
134 CPUHP_AP_PERF_X86_CSTATE_ONLINE,
135 CPUHP_AP_PERF_S390_CF_ONLINE,
136 CPUHP_AP_PERF_S390_SF_ONLINE,
137 CPUHP_AP_PERF_ARM_CCI_ONLINE,
138 CPUHP_AP_PERF_ARM_CCN_ONLINE,
139 CPUHP_AP_PERF_ARM_L2X0_ONLINE,
140 CPUHP_AP_PERF_ARM_QCOM_L2_ONLINE,
141 CPUHP_AP_PERF_ARM_QCOM_L3_ONLINE,
142 CPUHP_AP_WORKQUEUE_ONLINE,
143 CPUHP_AP_RCUTREE_ONLINE,
145 CPUHP_AP_ONLINE_DYN_END = CPUHP_AP_ONLINE_DYN + 30,
146 CPUHP_AP_X86_HPET_ONLINE,
147 CPUHP_AP_X86_KVM_CLK_ONLINE,
152 int __cpuhp_setup_state(enum cpuhp_state state, const char *name, bool invoke,
153 int (*startup)(unsigned int cpu),
154 int (*teardown)(unsigned int cpu), bool multi_instance);
156 int __cpuhp_setup_state_cpuslocked(enum cpuhp_state state, const char *name,
158 int (*startup)(unsigned int cpu),
159 int (*teardown)(unsigned int cpu),
160 bool multi_instance);
162 * cpuhp_setup_state - Setup hotplug state callbacks with calling the callbacks
163 * @state: The state for which the calls are installed
164 * @name: Name of the callback (will be used in debug output)
165 * @startup: startup callback function
166 * @teardown: teardown callback function
168 * Installs the callback functions and invokes the startup callback on
169 * the present cpus which have already reached the @state.
171 static inline int cpuhp_setup_state(enum cpuhp_state state,
173 int (*startup)(unsigned int cpu),
174 int (*teardown)(unsigned int cpu))
176 return __cpuhp_setup_state(state, name, true, startup, teardown, false);
179 static inline int cpuhp_setup_state_cpuslocked(enum cpuhp_state state,
181 int (*startup)(unsigned int cpu),
182 int (*teardown)(unsigned int cpu))
184 return __cpuhp_setup_state_cpuslocked(state, name, true, startup,
189 * cpuhp_setup_state_nocalls - Setup hotplug state callbacks without calling the
191 * @state: The state for which the calls are installed
192 * @name: Name of the callback.
193 * @startup: startup callback function
194 * @teardown: teardown callback function
196 * Same as @cpuhp_setup_state except that no calls are executed are invoked
197 * during installation of this callback. NOP if SMP=n or HOTPLUG_CPU=n.
199 static inline int cpuhp_setup_state_nocalls(enum cpuhp_state state,
201 int (*startup)(unsigned int cpu),
202 int (*teardown)(unsigned int cpu))
204 return __cpuhp_setup_state(state, name, false, startup, teardown,
208 static inline int cpuhp_setup_state_nocalls_cpuslocked(enum cpuhp_state state,
210 int (*startup)(unsigned int cpu),
211 int (*teardown)(unsigned int cpu))
213 return __cpuhp_setup_state_cpuslocked(state, name, false, startup,
218 * cpuhp_setup_state_multi - Add callbacks for multi state
219 * @state: The state for which the calls are installed
220 * @name: Name of the callback.
221 * @startup: startup callback function
222 * @teardown: teardown callback function
224 * Sets the internal multi_instance flag and prepares a state to work as a multi
225 * instance callback. No callbacks are invoked at this point. The callbacks are
226 * invoked once an instance for this state are registered via
227 * @cpuhp_state_add_instance or @cpuhp_state_add_instance_nocalls.
229 static inline int cpuhp_setup_state_multi(enum cpuhp_state state,
231 int (*startup)(unsigned int cpu,
232 struct hlist_node *node),
233 int (*teardown)(unsigned int cpu,
234 struct hlist_node *node))
236 return __cpuhp_setup_state(state, name, false,
238 (void *) teardown, true);
241 int __cpuhp_state_add_instance(enum cpuhp_state state, struct hlist_node *node,
243 int __cpuhp_state_add_instance_cpuslocked(enum cpuhp_state state,
244 struct hlist_node *node, bool invoke);
247 * cpuhp_state_add_instance - Add an instance for a state and invoke startup
249 * @state: The state for which the instance is installed
250 * @node: The node for this individual state.
252 * Installs the instance for the @state and invokes the startup callback on
253 * the present cpus which have already reached the @state. The @state must have
254 * been earlier marked as multi-instance by @cpuhp_setup_state_multi.
256 static inline int cpuhp_state_add_instance(enum cpuhp_state state,
257 struct hlist_node *node)
259 return __cpuhp_state_add_instance(state, node, true);
263 * cpuhp_state_add_instance_nocalls - Add an instance for a state without
264 * invoking the startup callback.
265 * @state: The state for which the instance is installed
266 * @node: The node for this individual state.
268 * Installs the instance for the @state The @state must have been earlier
269 * marked as multi-instance by @cpuhp_setup_state_multi.
271 static inline int cpuhp_state_add_instance_nocalls(enum cpuhp_state state,
272 struct hlist_node *node)
274 return __cpuhp_state_add_instance(state, node, false);
278 cpuhp_state_add_instance_nocalls_cpuslocked(enum cpuhp_state state,
279 struct hlist_node *node)
281 return __cpuhp_state_add_instance_cpuslocked(state, node, false);
284 void __cpuhp_remove_state(enum cpuhp_state state, bool invoke);
285 void __cpuhp_remove_state_cpuslocked(enum cpuhp_state state, bool invoke);
288 * cpuhp_remove_state - Remove hotplug state callbacks and invoke the teardown
289 * @state: The state for which the calls are removed
291 * Removes the callback functions and invokes the teardown callback on
292 * the present cpus which have already reached the @state.
294 static inline void cpuhp_remove_state(enum cpuhp_state state)
296 __cpuhp_remove_state(state, true);
300 * cpuhp_remove_state_nocalls - Remove hotplug state callbacks without invoking
302 * @state: The state for which the calls are removed
304 static inline void cpuhp_remove_state_nocalls(enum cpuhp_state state)
306 __cpuhp_remove_state(state, false);
309 static inline void cpuhp_remove_state_nocalls_cpuslocked(enum cpuhp_state state)
311 __cpuhp_remove_state_cpuslocked(state, false);
315 * cpuhp_remove_multi_state - Remove hotplug multi state callback
316 * @state: The state for which the calls are removed
318 * Removes the callback functions from a multi state. This is the reverse of
319 * cpuhp_setup_state_multi(). All instances should have been removed before
320 * invoking this function.
322 static inline void cpuhp_remove_multi_state(enum cpuhp_state state)
324 __cpuhp_remove_state(state, false);
327 int __cpuhp_state_remove_instance(enum cpuhp_state state,
328 struct hlist_node *node, bool invoke);
331 * cpuhp_state_remove_instance - Remove hotplug instance from state and invoke
332 * the teardown callback
333 * @state: The state from which the instance is removed
334 * @node: The node for this individual state.
336 * Removes the instance and invokes the teardown callback on the present cpus
337 * which have already reached the @state.
339 static inline int cpuhp_state_remove_instance(enum cpuhp_state state,
340 struct hlist_node *node)
342 return __cpuhp_state_remove_instance(state, node, true);
346 * cpuhp_state_remove_instance_nocalls - Remove hotplug instance from state
347 * without invoking the reatdown callback
348 * @state: The state from which the instance is removed
349 * @node: The node for this individual state.
351 * Removes the instance without invoking the teardown callback.
353 static inline int cpuhp_state_remove_instance_nocalls(enum cpuhp_state state,
354 struct hlist_node *node)
356 return __cpuhp_state_remove_instance(state, node, false);
360 void cpuhp_online_idle(enum cpuhp_state state);
362 static inline void cpuhp_online_idle(enum cpuhp_state state) { }