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,
30 CPUHP_ACPI_CPUDRV_DEAD,
31 CPUHP_S390_PFAULT_DEAD,
36 CPUHP_PERCPU_CNT_DEAD,
38 CPUHP_PAGE_ALLOC_DEAD,
41 CPUHP_IOMMU_INTEL_DEAD,
42 CPUHP_LUSTRE_CFS_DEAD,
43 CPUHP_SCSI_BNX2FC_DEAD,
44 CPUHP_SCSI_BNX2I_DEAD,
46 CPUHP_POWER_NUMA_PREPARE,
47 CPUHP_HRTIMERS_PREPARE,
48 CPUHP_PROFILE_PREPARE,
53 CPUHP_MD_RAID5_PREPARE,
55 CPUHP_CPUIDLE_COUPLED_PREPARE,
56 CPUHP_POWERPC_PMAC_PREPARE,
57 CPUHP_POWERPC_MMU_CTX_PREPARE,
59 CPUHP_XEN_EVTCHN_PREPARE,
60 CPUHP_ARM_SHMOBILE_SCU_PREPARE,
61 CPUHP_SH_SH3X_PREPARE,
63 CPUHP_NET_FLOW_PREPARE,
64 CPUHP_TOPOLOGY_PREPARE,
65 CPUHP_NET_IUCV_PREPARE,
67 CPUHP_TRACE_RB_PREPARE,
69 CPUHP_MM_ZSWP_MEM_PREPARE,
70 CPUHP_MM_ZSWP_POOL_PREPARE,
71 CPUHP_KVM_PPC_BOOK3S_PREPARE,
74 CPUHP_MIPS_SOC_PREPARE,
76 CPUHP_BP_PREPARE_DYN_END = CPUHP_BP_PREPARE_DYN + 20,
80 CPUHP_AP_SCHED_STARTING,
81 CPUHP_AP_RCUTREE_DYING,
82 CPUHP_AP_IRQ_GIC_STARTING,
83 CPUHP_AP_IRQ_HIP04_STARTING,
84 CPUHP_AP_IRQ_ARMADA_XP_STARTING,
85 CPUHP_AP_IRQ_BCM2836_STARTING,
86 CPUHP_AP_ARM_MVEBU_COHERENCY,
87 CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING,
88 CPUHP_AP_PERF_X86_STARTING,
89 CPUHP_AP_PERF_X86_AMD_IBS_STARTING,
90 CPUHP_AP_PERF_X86_CQM_STARTING,
91 CPUHP_AP_PERF_X86_CSTATE_STARTING,
92 CPUHP_AP_PERF_XTENSA_STARTING,
93 CPUHP_AP_PERF_METAG_STARTING,
94 CPUHP_AP_MIPS_OP_LOONGSON3_STARTING,
95 CPUHP_AP_ARM_VFP_STARTING,
96 CPUHP_AP_ARM64_DEBUG_MONITORS_STARTING,
97 CPUHP_AP_PERF_ARM_HW_BREAKPOINT_STARTING,
98 CPUHP_AP_PERF_ARM_STARTING,
99 CPUHP_AP_ARM_L2X0_STARTING,
100 CPUHP_AP_ARM_ARCH_TIMER_STARTING,
101 CPUHP_AP_ARM_GLOBAL_TIMER_STARTING,
102 CPUHP_AP_JCORE_TIMER_STARTING,
103 CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING,
104 CPUHP_AP_ARM_TWD_STARTING,
105 CPUHP_AP_METAG_TIMER_STARTING,
106 CPUHP_AP_QCOM_TIMER_STARTING,
107 CPUHP_AP_ARMADA_TIMER_STARTING,
108 CPUHP_AP_MARCO_TIMER_STARTING,
109 CPUHP_AP_MIPS_GIC_TIMER_STARTING,
110 CPUHP_AP_ARC_TIMER_STARTING,
111 CPUHP_AP_KVM_STARTING,
112 CPUHP_AP_KVM_ARM_VGIC_INIT_STARTING,
113 CPUHP_AP_KVM_ARM_VGIC_STARTING,
114 CPUHP_AP_KVM_ARM_TIMER_STARTING,
115 /* Must be the last timer callback */
116 CPUHP_AP_DUMMY_TIMER_STARTING,
117 CPUHP_AP_ARM_XEN_STARTING,
118 CPUHP_AP_ARM_CORESIGHT_STARTING,
119 CPUHP_AP_ARM64_ISNDEP_STARTING,
120 CPUHP_AP_SMPCFD_DYING,
121 CPUHP_AP_X86_TBOOT_DYING,
124 CPUHP_AP_ONLINE_IDLE,
125 CPUHP_AP_SMPBOOT_THREADS,
126 CPUHP_AP_X86_VDSO_VMA_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_WORKQUEUE_ONLINE,
141 CPUHP_AP_RCUTREE_ONLINE,
143 CPUHP_AP_ONLINE_DYN_END = CPUHP_AP_ONLINE_DYN + 30,
144 CPUHP_AP_X86_HPET_ONLINE,
145 CPUHP_AP_X86_KVM_CLK_ONLINE,
150 int __cpuhp_setup_state(enum cpuhp_state state, const char *name, bool invoke,
151 int (*startup)(unsigned int cpu),
152 int (*teardown)(unsigned int cpu), bool multi_instance);
155 * cpuhp_setup_state - Setup hotplug state callbacks with calling the callbacks
156 * @state: The state for which the calls are installed
157 * @name: Name of the callback (will be used in debug output)
158 * @startup: startup callback function
159 * @teardown: teardown callback function
161 * Installs the callback functions and invokes the startup callback on
162 * the present cpus which have already reached the @state.
164 static inline int cpuhp_setup_state(enum cpuhp_state state,
166 int (*startup)(unsigned int cpu),
167 int (*teardown)(unsigned int cpu))
169 return __cpuhp_setup_state(state, name, true, startup, teardown, false);
173 * cpuhp_setup_state_nocalls - Setup hotplug state callbacks without calling the
175 * @state: The state for which the calls are installed
176 * @name: Name of the callback.
177 * @startup: startup callback function
178 * @teardown: teardown callback function
180 * Same as @cpuhp_setup_state except that no calls are executed are invoked
181 * during installation of this callback. NOP if SMP=n or HOTPLUG_CPU=n.
183 static inline int cpuhp_setup_state_nocalls(enum cpuhp_state state,
185 int (*startup)(unsigned int cpu),
186 int (*teardown)(unsigned int cpu))
188 return __cpuhp_setup_state(state, name, false, startup, teardown,
193 * cpuhp_setup_state_multi - Add callbacks for multi state
194 * @state: The state for which the calls are installed
195 * @name: Name of the callback.
196 * @startup: startup callback function
197 * @teardown: teardown callback function
199 * Sets the internal multi_instance flag and prepares a state to work as a multi
200 * instance callback. No callbacks are invoked at this point. The callbacks are
201 * invoked once an instance for this state are registered via
202 * @cpuhp_state_add_instance or @cpuhp_state_add_instance_nocalls.
204 static inline int cpuhp_setup_state_multi(enum cpuhp_state state,
206 int (*startup)(unsigned int cpu,
207 struct hlist_node *node),
208 int (*teardown)(unsigned int cpu,
209 struct hlist_node *node))
211 return __cpuhp_setup_state(state, name, false,
213 (void *) teardown, true);
216 int __cpuhp_state_add_instance(enum cpuhp_state state, struct hlist_node *node,
220 * cpuhp_state_add_instance - Add an instance for a state and invoke startup
222 * @state: The state for which the instance is installed
223 * @node: The node for this individual state.
225 * Installs the instance for the @state and invokes the startup callback on
226 * the present cpus which have already reached the @state. The @state must have
227 * been earlier marked as multi-instance by @cpuhp_setup_state_multi.
229 static inline int cpuhp_state_add_instance(enum cpuhp_state state,
230 struct hlist_node *node)
232 return __cpuhp_state_add_instance(state, node, true);
236 * cpuhp_state_add_instance_nocalls - Add an instance for a state without
237 * invoking the startup callback.
238 * @state: The state for which the instance is installed
239 * @node: The node for this individual state.
241 * Installs the instance for the @state The @state must have been earlier
242 * marked as multi-instance by @cpuhp_setup_state_multi.
244 static inline int cpuhp_state_add_instance_nocalls(enum cpuhp_state state,
245 struct hlist_node *node)
247 return __cpuhp_state_add_instance(state, node, false);
250 void __cpuhp_remove_state(enum cpuhp_state state, bool invoke);
253 * cpuhp_remove_state - Remove hotplug state callbacks and invoke the teardown
254 * @state: The state for which the calls are removed
256 * Removes the callback functions and invokes the teardown callback on
257 * the present cpus which have already reached the @state.
259 static inline void cpuhp_remove_state(enum cpuhp_state state)
261 __cpuhp_remove_state(state, true);
265 * cpuhp_remove_state_nocalls - Remove hotplug state callbacks without invoking
267 * @state: The state for which the calls are removed
269 static inline void cpuhp_remove_state_nocalls(enum cpuhp_state state)
271 __cpuhp_remove_state(state, false);
275 * cpuhp_remove_multi_state - Remove hotplug multi state callback
276 * @state: The state for which the calls are removed
278 * Removes the callback functions from a multi state. This is the reverse of
279 * cpuhp_setup_state_multi(). All instances should have been removed before
280 * invoking this function.
282 static inline void cpuhp_remove_multi_state(enum cpuhp_state state)
284 __cpuhp_remove_state(state, false);
287 int __cpuhp_state_remove_instance(enum cpuhp_state state,
288 struct hlist_node *node, bool invoke);
291 * cpuhp_state_remove_instance - Remove hotplug instance from state and invoke
292 * the teardown callback
293 * @state: The state from which the instance is removed
294 * @node: The node for this individual state.
296 * Removes the instance and invokes the teardown callback on the present cpus
297 * which have already reached the @state.
299 static inline int cpuhp_state_remove_instance(enum cpuhp_state state,
300 struct hlist_node *node)
302 return __cpuhp_state_remove_instance(state, node, true);
306 * cpuhp_state_remove_instance_nocalls - Remove hotplug instance from state
307 * without invoking the reatdown callback
308 * @state: The state from which the instance is removed
309 * @node: The node for this individual state.
311 * Removes the instance without invoking the teardown callback.
313 static inline int cpuhp_state_remove_instance_nocalls(enum cpuhp_state state,
314 struct hlist_node *node)
316 return __cpuhp_state_remove_instance(state, node, false);
320 void cpuhp_online_idle(enum cpuhp_state state);
322 static inline void cpuhp_online_idle(enum cpuhp_state state) { }