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,
22 CPUHP_MM_WRITEBACK_DEAD,
25 CPUHP_NET_MVNETA_DEAD,
27 CPUHP_ARM64_FPSIMD_DEAD,
28 CPUHP_ARM_OMAP_WAKE_DEAD,
30 CPUHP_BLOCK_SOFTIRQ_DEAD,
32 CPUHP_ACPI_CPUDRV_DEAD,
33 CPUHP_S390_PFAULT_DEAD,
38 CPUHP_PERCPU_CNT_DEAD,
40 CPUHP_PAGE_ALLOC_DEAD,
43 CPUHP_IOMMU_INTEL_DEAD,
44 CPUHP_LUSTRE_CFS_DEAD,
45 CPUHP_SCSI_BNX2FC_DEAD,
46 CPUHP_SCSI_BNX2I_DEAD,
48 CPUHP_POWER_NUMA_PREPARE,
49 CPUHP_HRTIMERS_PREPARE,
50 CPUHP_PROFILE_PREPARE,
55 CPUHP_MD_RAID5_PREPARE,
57 CPUHP_CPUIDLE_COUPLED_PREPARE,
58 CPUHP_POWERPC_PMAC_PREPARE,
59 CPUHP_POWERPC_MMU_CTX_PREPARE,
61 CPUHP_XEN_EVTCHN_PREPARE,
62 CPUHP_ARM_SHMOBILE_SCU_PREPARE,
63 CPUHP_SH_SH3X_PREPARE,
65 CPUHP_NET_FLOW_PREPARE,
66 CPUHP_TOPOLOGY_PREPARE,
67 CPUHP_NET_IUCV_PREPARE,
69 CPUHP_TRACE_RB_PREPARE,
71 CPUHP_MM_ZSWP_MEM_PREPARE,
72 CPUHP_MM_ZSWP_POOL_PREPARE,
73 CPUHP_KVM_PPC_BOOK3S_PREPARE,
76 CPUHP_MIPS_SOC_PREPARE,
78 CPUHP_BP_PREPARE_DYN_END = CPUHP_BP_PREPARE_DYN + 20,
82 CPUHP_AP_SCHED_STARTING,
83 CPUHP_AP_RCUTREE_DYING,
84 CPUHP_AP_IRQ_GIC_STARTING,
85 CPUHP_AP_IRQ_HIP04_STARTING,
86 CPUHP_AP_IRQ_ARMADA_XP_STARTING,
87 CPUHP_AP_IRQ_BCM2836_STARTING,
88 CPUHP_AP_ARM_MVEBU_COHERENCY,
89 CPUHP_AP_PERF_X86_UNCORE_STARTING,
90 CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING,
91 CPUHP_AP_PERF_X86_STARTING,
92 CPUHP_AP_PERF_X86_AMD_IBS_STARTING,
93 CPUHP_AP_PERF_X86_CQM_STARTING,
94 CPUHP_AP_PERF_X86_CSTATE_STARTING,
95 CPUHP_AP_PERF_XTENSA_STARTING,
96 CPUHP_AP_PERF_METAG_STARTING,
97 CPUHP_AP_MIPS_OP_LOONGSON3_STARTING,
98 CPUHP_AP_ARM_VFP_STARTING,
99 CPUHP_AP_ARM64_DEBUG_MONITORS_STARTING,
100 CPUHP_AP_PERF_ARM_HW_BREAKPOINT_STARTING,
101 CPUHP_AP_PERF_ARM_STARTING,
102 CPUHP_AP_ARM_L2X0_STARTING,
103 CPUHP_AP_ARM_ARCH_TIMER_STARTING,
104 CPUHP_AP_ARM_GLOBAL_TIMER_STARTING,
105 CPUHP_AP_JCORE_TIMER_STARTING,
106 CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING,
107 CPUHP_AP_ARM_TWD_STARTING,
108 CPUHP_AP_METAG_TIMER_STARTING,
109 CPUHP_AP_QCOM_TIMER_STARTING,
110 CPUHP_AP_ARMADA_TIMER_STARTING,
111 CPUHP_AP_MARCO_TIMER_STARTING,
112 CPUHP_AP_MIPS_GIC_TIMER_STARTING,
113 CPUHP_AP_ARC_TIMER_STARTING,
114 CPUHP_AP_KVM_STARTING,
115 CPUHP_AP_KVM_ARM_VGIC_INIT_STARTING,
116 CPUHP_AP_KVM_ARM_VGIC_STARTING,
117 CPUHP_AP_KVM_ARM_TIMER_STARTING,
118 /* Must be the last timer callback */
119 CPUHP_AP_DUMMY_TIMER_STARTING,
120 CPUHP_AP_ARM_XEN_STARTING,
121 CPUHP_AP_ARM_CORESIGHT_STARTING,
122 CPUHP_AP_ARM64_ISNDEP_STARTING,
123 CPUHP_AP_SMPCFD_DYING,
124 CPUHP_AP_X86_TBOOT_DYING,
127 CPUHP_AP_ONLINE_IDLE,
128 CPUHP_AP_SMPBOOT_THREADS,
129 CPUHP_AP_X86_VDSO_VMA_ONLINE,
130 CPUHP_AP_PERF_ONLINE,
131 CPUHP_AP_PERF_X86_ONLINE,
132 CPUHP_AP_PERF_X86_UNCORE_ONLINE,
133 CPUHP_AP_PERF_X86_AMD_UNCORE_ONLINE,
134 CPUHP_AP_PERF_X86_AMD_POWER_ONLINE,
135 CPUHP_AP_PERF_X86_RAPL_ONLINE,
136 CPUHP_AP_PERF_X86_CQM_ONLINE,
137 CPUHP_AP_PERF_X86_CSTATE_ONLINE,
138 CPUHP_AP_PERF_S390_CF_ONLINE,
139 CPUHP_AP_PERF_S390_SF_ONLINE,
140 CPUHP_AP_PERF_ARM_CCI_ONLINE,
141 CPUHP_AP_PERF_ARM_CCN_ONLINE,
142 CPUHP_AP_PERF_ARM_L2X0_ONLINE,
143 CPUHP_AP_WORKQUEUE_ONLINE,
144 CPUHP_AP_RCUTREE_ONLINE,
146 CPUHP_AP_ONLINE_DYN_END = CPUHP_AP_ONLINE_DYN + 30,
147 CPUHP_AP_X86_HPET_ONLINE,
148 CPUHP_AP_X86_KVM_CLK_ONLINE,
153 int __cpuhp_setup_state(enum cpuhp_state state, const char *name, bool invoke,
154 int (*startup)(unsigned int cpu),
155 int (*teardown)(unsigned int cpu), bool multi_instance);
158 * cpuhp_setup_state - Setup hotplug state callbacks with calling the callbacks
159 * @state: The state for which the calls are installed
160 * @name: Name of the callback (will be used in debug output)
161 * @startup: startup callback function
162 * @teardown: teardown callback function
164 * Installs the callback functions and invokes the startup callback on
165 * the present cpus which have already reached the @state.
167 static inline int cpuhp_setup_state(enum cpuhp_state state,
169 int (*startup)(unsigned int cpu),
170 int (*teardown)(unsigned int cpu))
172 return __cpuhp_setup_state(state, name, true, startup, teardown, false);
176 * cpuhp_setup_state_nocalls - Setup hotplug state callbacks without calling the
178 * @state: The state for which the calls are installed
179 * @name: Name of the callback.
180 * @startup: startup callback function
181 * @teardown: teardown callback function
183 * Same as @cpuhp_setup_state except that no calls are executed are invoked
184 * during installation of this callback. NOP if SMP=n or HOTPLUG_CPU=n.
186 static inline int cpuhp_setup_state_nocalls(enum cpuhp_state state,
188 int (*startup)(unsigned int cpu),
189 int (*teardown)(unsigned int cpu))
191 return __cpuhp_setup_state(state, name, false, startup, teardown,
196 * cpuhp_setup_state_multi - Add callbacks for multi state
197 * @state: The state for which the calls are installed
198 * @name: Name of the callback.
199 * @startup: startup callback function
200 * @teardown: teardown callback function
202 * Sets the internal multi_instance flag and prepares a state to work as a multi
203 * instance callback. No callbacks are invoked at this point. The callbacks are
204 * invoked once an instance for this state are registered via
205 * @cpuhp_state_add_instance or @cpuhp_state_add_instance_nocalls.
207 static inline int cpuhp_setup_state_multi(enum cpuhp_state state,
209 int (*startup)(unsigned int cpu,
210 struct hlist_node *node),
211 int (*teardown)(unsigned int cpu,
212 struct hlist_node *node))
214 return __cpuhp_setup_state(state, name, false,
216 (void *) teardown, true);
219 int __cpuhp_state_add_instance(enum cpuhp_state state, struct hlist_node *node,
223 * cpuhp_state_add_instance - Add an instance for a state and invoke startup
225 * @state: The state for which the instance is installed
226 * @node: The node for this individual state.
228 * Installs the instance for the @state and invokes the startup callback on
229 * the present cpus which have already reached the @state. The @state must have
230 * been earlier marked as multi-instance by @cpuhp_setup_state_multi.
232 static inline int cpuhp_state_add_instance(enum cpuhp_state state,
233 struct hlist_node *node)
235 return __cpuhp_state_add_instance(state, node, true);
239 * cpuhp_state_add_instance_nocalls - Add an instance for a state without
240 * invoking the startup callback.
241 * @state: The state for which the instance is installed
242 * @node: The node for this individual state.
244 * Installs the instance for the @state The @state must have been earlier
245 * marked as multi-instance by @cpuhp_setup_state_multi.
247 static inline int cpuhp_state_add_instance_nocalls(enum cpuhp_state state,
248 struct hlist_node *node)
250 return __cpuhp_state_add_instance(state, node, false);
253 void __cpuhp_remove_state(enum cpuhp_state state, bool invoke);
256 * cpuhp_remove_state - Remove hotplug state callbacks and invoke the teardown
257 * @state: The state for which the calls are removed
259 * Removes the callback functions and invokes the teardown callback on
260 * the present cpus which have already reached the @state.
262 static inline void cpuhp_remove_state(enum cpuhp_state state)
264 __cpuhp_remove_state(state, true);
268 * cpuhp_remove_state_nocalls - Remove hotplug state callbacks without invoking
270 * @state: The state for which the calls are removed
272 static inline void cpuhp_remove_state_nocalls(enum cpuhp_state state)
274 __cpuhp_remove_state(state, false);
278 * cpuhp_remove_multi_state - Remove hotplug multi state callback
279 * @state: The state for which the calls are removed
281 * Removes the callback functions from a multi state. This is the reverse of
282 * cpuhp_setup_state_multi(). All instances should have been removed before
283 * invoking this function.
285 static inline void cpuhp_remove_multi_state(enum cpuhp_state state)
287 __cpuhp_remove_state(state, false);
290 int __cpuhp_state_remove_instance(enum cpuhp_state state,
291 struct hlist_node *node, bool invoke);
294 * cpuhp_state_remove_instance - Remove hotplug instance from state and invoke
295 * the teardown callback
296 * @state: The state from which the instance is removed
297 * @node: The node for this individual state.
299 * Removes the instance and invokes the teardown callback on the present cpus
300 * which have already reached the @state.
302 static inline int cpuhp_state_remove_instance(enum cpuhp_state state,
303 struct hlist_node *node)
305 return __cpuhp_state_remove_instance(state, node, true);
309 * cpuhp_state_remove_instance_nocalls - Remove hotplug instance from state
310 * without invoking the reatdown callback
311 * @state: The state from which the instance is removed
312 * @node: The node for this individual state.
314 * Removes the instance without invoking the teardown callback.
316 static inline int cpuhp_state_remove_instance_nocalls(enum cpuhp_state state,
317 struct hlist_node *node)
319 return __cpuhp_state_remove_instance(state, node, false);
323 void cpuhp_online_idle(enum cpuhp_state state);
325 static inline void cpuhp_online_idle(enum cpuhp_state state) { }