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,
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_UNCORE_STARTING,
88 CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING,
89 CPUHP_AP_PERF_X86_STARTING,
90 CPUHP_AP_PERF_X86_AMD_IBS_STARTING,
91 CPUHP_AP_PERF_X86_CQM_STARTING,
92 CPUHP_AP_PERF_X86_CSTATE_STARTING,
93 CPUHP_AP_PERF_XTENSA_STARTING,
94 CPUHP_AP_PERF_METAG_STARTING,
95 CPUHP_AP_MIPS_OP_LOONGSON3_STARTING,
96 CPUHP_AP_ARM_VFP_STARTING,
97 CPUHP_AP_ARM64_DEBUG_MONITORS_STARTING,
98 CPUHP_AP_PERF_ARM_HW_BREAKPOINT_STARTING,
99 CPUHP_AP_PERF_ARM_STARTING,
100 CPUHP_AP_ARM_L2X0_STARTING,
101 CPUHP_AP_ARM_ARCH_TIMER_STARTING,
102 CPUHP_AP_ARM_GLOBAL_TIMER_STARTING,
103 CPUHP_AP_JCORE_TIMER_STARTING,
104 CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING,
105 CPUHP_AP_ARM_TWD_STARTING,
106 CPUHP_AP_METAG_TIMER_STARTING,
107 CPUHP_AP_QCOM_TIMER_STARTING,
108 CPUHP_AP_ARMADA_TIMER_STARTING,
109 CPUHP_AP_MARCO_TIMER_STARTING,
110 CPUHP_AP_MIPS_GIC_TIMER_STARTING,
111 CPUHP_AP_ARC_TIMER_STARTING,
112 CPUHP_AP_KVM_STARTING,
113 CPUHP_AP_KVM_ARM_VGIC_INIT_STARTING,
114 CPUHP_AP_KVM_ARM_VGIC_STARTING,
115 CPUHP_AP_KVM_ARM_TIMER_STARTING,
116 /* Must be the last timer callback */
117 CPUHP_AP_DUMMY_TIMER_STARTING,
118 CPUHP_AP_ARM_XEN_STARTING,
119 CPUHP_AP_ARM_CORESIGHT_STARTING,
120 CPUHP_AP_ARM64_ISNDEP_STARTING,
121 CPUHP_AP_SMPCFD_DYING,
122 CPUHP_AP_X86_TBOOT_DYING,
125 CPUHP_AP_ONLINE_IDLE,
126 CPUHP_AP_SMPBOOT_THREADS,
127 CPUHP_AP_X86_VDSO_VMA_ONLINE,
128 CPUHP_AP_PERF_ONLINE,
129 CPUHP_AP_PERF_X86_ONLINE,
130 CPUHP_AP_PERF_X86_UNCORE_ONLINE,
131 CPUHP_AP_PERF_X86_AMD_UNCORE_ONLINE,
132 CPUHP_AP_PERF_X86_AMD_POWER_ONLINE,
133 CPUHP_AP_PERF_X86_RAPL_ONLINE,
134 CPUHP_AP_PERF_X86_CQM_ONLINE,
135 CPUHP_AP_PERF_X86_CSTATE_ONLINE,
136 CPUHP_AP_PERF_S390_CF_ONLINE,
137 CPUHP_AP_PERF_S390_SF_ONLINE,
138 CPUHP_AP_PERF_ARM_CCI_ONLINE,
139 CPUHP_AP_PERF_ARM_CCN_ONLINE,
140 CPUHP_AP_PERF_ARM_L2X0_ONLINE,
141 CPUHP_AP_WORKQUEUE_ONLINE,
142 CPUHP_AP_RCUTREE_ONLINE,
144 CPUHP_AP_ONLINE_DYN_END = CPUHP_AP_ONLINE_DYN + 30,
145 CPUHP_AP_X86_HPET_ONLINE,
146 CPUHP_AP_X86_KVM_CLK_ONLINE,
151 int __cpuhp_setup_state(enum cpuhp_state state, const char *name, bool invoke,
152 int (*startup)(unsigned int cpu),
153 int (*teardown)(unsigned int cpu), bool multi_instance);
156 * cpuhp_setup_state - Setup hotplug state callbacks with calling the callbacks
157 * @state: The state for which the calls are installed
158 * @name: Name of the callback (will be used in debug output)
159 * @startup: startup callback function
160 * @teardown: teardown callback function
162 * Installs the callback functions and invokes the startup callback on
163 * the present cpus which have already reached the @state.
165 static inline int cpuhp_setup_state(enum cpuhp_state state,
167 int (*startup)(unsigned int cpu),
168 int (*teardown)(unsigned int cpu))
170 return __cpuhp_setup_state(state, name, true, startup, teardown, false);
174 * cpuhp_setup_state_nocalls - Setup hotplug state callbacks without calling the
176 * @state: The state for which the calls are installed
177 * @name: Name of the callback.
178 * @startup: startup callback function
179 * @teardown: teardown callback function
181 * Same as @cpuhp_setup_state except that no calls are executed are invoked
182 * during installation of this callback. NOP if SMP=n or HOTPLUG_CPU=n.
184 static inline int cpuhp_setup_state_nocalls(enum cpuhp_state state,
186 int (*startup)(unsigned int cpu),
187 int (*teardown)(unsigned int cpu))
189 return __cpuhp_setup_state(state, name, false, startup, teardown,
194 * cpuhp_setup_state_multi - Add callbacks for multi state
195 * @state: The state for which the calls are installed
196 * @name: Name of the callback.
197 * @startup: startup callback function
198 * @teardown: teardown callback function
200 * Sets the internal multi_instance flag and prepares a state to work as a multi
201 * instance callback. No callbacks are invoked at this point. The callbacks are
202 * invoked once an instance for this state are registered via
203 * @cpuhp_state_add_instance or @cpuhp_state_add_instance_nocalls.
205 static inline int cpuhp_setup_state_multi(enum cpuhp_state state,
207 int (*startup)(unsigned int cpu,
208 struct hlist_node *node),
209 int (*teardown)(unsigned int cpu,
210 struct hlist_node *node))
212 return __cpuhp_setup_state(state, name, false,
214 (void *) teardown, true);
217 int __cpuhp_state_add_instance(enum cpuhp_state state, struct hlist_node *node,
221 * cpuhp_state_add_instance - Add an instance for a state and invoke startup
223 * @state: The state for which the instance is installed
224 * @node: The node for this individual state.
226 * Installs the instance for the @state and invokes the startup callback on
227 * the present cpus which have already reached the @state. The @state must have
228 * been earlier marked as multi-instance by @cpuhp_setup_state_multi.
230 static inline int cpuhp_state_add_instance(enum cpuhp_state state,
231 struct hlist_node *node)
233 return __cpuhp_state_add_instance(state, node, true);
237 * cpuhp_state_add_instance_nocalls - Add an instance for a state without
238 * invoking the startup callback.
239 * @state: The state for which the instance is installed
240 * @node: The node for this individual state.
242 * Installs the instance for the @state The @state must have been earlier
243 * marked as multi-instance by @cpuhp_setup_state_multi.
245 static inline int cpuhp_state_add_instance_nocalls(enum cpuhp_state state,
246 struct hlist_node *node)
248 return __cpuhp_state_add_instance(state, node, false);
251 void __cpuhp_remove_state(enum cpuhp_state state, bool invoke);
254 * cpuhp_remove_state - Remove hotplug state callbacks and invoke the teardown
255 * @state: The state for which the calls are removed
257 * Removes the callback functions and invokes the teardown callback on
258 * the present cpus which have already reached the @state.
260 static inline void cpuhp_remove_state(enum cpuhp_state state)
262 __cpuhp_remove_state(state, true);
266 * cpuhp_remove_state_nocalls - Remove hotplug state callbacks without invoking
268 * @state: The state for which the calls are removed
270 static inline void cpuhp_remove_state_nocalls(enum cpuhp_state state)
272 __cpuhp_remove_state(state, false);
276 * cpuhp_remove_multi_state - Remove hotplug multi state callback
277 * @state: The state for which the calls are removed
279 * Removes the callback functions from a multi state. This is the reverse of
280 * cpuhp_setup_state_multi(). All instances should have been removed before
281 * invoking this function.
283 static inline void cpuhp_remove_multi_state(enum cpuhp_state state)
285 __cpuhp_remove_state(state, false);
288 int __cpuhp_state_remove_instance(enum cpuhp_state state,
289 struct hlist_node *node, bool invoke);
292 * cpuhp_state_remove_instance - Remove hotplug instance from state and invoke
293 * the teardown callback
294 * @state: The state from which the instance is removed
295 * @node: The node for this individual state.
297 * Removes the instance and invokes the teardown callback on the present cpus
298 * which have already reached the @state.
300 static inline int cpuhp_state_remove_instance(enum cpuhp_state state,
301 struct hlist_node *node)
303 return __cpuhp_state_remove_instance(state, node, true);
307 * cpuhp_state_remove_instance_nocalls - Remove hotplug instance from state
308 * without invoking the reatdown callback
309 * @state: The state from which the instance is removed
310 * @node: The node for this individual state.
312 * Removes the instance without invoking the teardown callback.
314 static inline int cpuhp_state_remove_instance_nocalls(enum cpuhp_state state,
315 struct hlist_node *node)
317 return __cpuhp_state_remove_instance(state, node, false);
321 void cpuhp_online_idle(enum cpuhp_state state);
323 static inline void cpuhp_online_idle(enum cpuhp_state state) { }