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,
36 CPUHP_PERCPU_CNT_DEAD,
39 CPUHP_POWER_NUMA_PREPARE,
40 CPUHP_HRTIMERS_PREPARE,
41 CPUHP_PROFILE_PREPARE,
46 CPUHP_MD_RAID5_PREPARE,
48 CPUHP_CPUIDLE_COUPLED_PREPARE,
49 CPUHP_POWERPC_PMAC_PREPARE,
50 CPUHP_POWERPC_MMU_CTX_PREPARE,
52 CPUHP_XEN_EVTCHN_PREPARE,
54 CPUHP_ARM_SHMOBILE_SCU_PREPARE,
55 CPUHP_SH_SH3X_PREPARE,
58 CPUHP_NOTF_ERR_INJ_PREPARE,
59 CPUHP_MIPS_SOC_PREPARE,
63 CPUHP_AP_SCHED_STARTING,
64 CPUHP_AP_RCUTREE_DYING,
65 CPUHP_AP_IRQ_GIC_STARTING,
66 CPUHP_AP_IRQ_GICV3_STARTING,
67 CPUHP_AP_IRQ_HIP04_STARTING,
68 CPUHP_AP_IRQ_ARMADA_XP_STARTING,
69 CPUHP_AP_IRQ_ARMADA_CASC_STARTING,
70 CPUHP_AP_IRQ_BCM2836_STARTING,
71 CPUHP_AP_ARM_MVEBU_COHERENCY,
72 CPUHP_AP_PERF_X86_UNCORE_STARTING,
73 CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING,
74 CPUHP_AP_PERF_X86_STARTING,
75 CPUHP_AP_PERF_X86_AMD_IBS_STARTING,
76 CPUHP_AP_PERF_X86_CQM_STARTING,
77 CPUHP_AP_PERF_X86_CSTATE_STARTING,
78 CPUHP_AP_PERF_XTENSA_STARTING,
79 CPUHP_AP_PERF_METAG_STARTING,
80 CPUHP_AP_MIPS_OP_LOONGSON3_STARTING,
81 CPUHP_AP_ARM_VFP_STARTING,
82 CPUHP_AP_ARM64_DEBUG_MONITORS_STARTING,
83 CPUHP_AP_PERF_ARM_HW_BREAKPOINT_STARTING,
84 CPUHP_AP_PERF_ARM_STARTING,
85 CPUHP_AP_ARM_L2X0_STARTING,
86 CPUHP_AP_ARM_ARCH_TIMER_STARTING,
87 CPUHP_AP_ARM_GLOBAL_TIMER_STARTING,
88 CPUHP_AP_DUMMY_TIMER_STARTING,
89 CPUHP_AP_JCORE_TIMER_STARTING,
90 CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING,
91 CPUHP_AP_ARM_TWD_STARTING,
92 CPUHP_AP_METAG_TIMER_STARTING,
93 CPUHP_AP_QCOM_TIMER_STARTING,
94 CPUHP_AP_ARMADA_TIMER_STARTING,
95 CPUHP_AP_MARCO_TIMER_STARTING,
96 CPUHP_AP_MIPS_GIC_TIMER_STARTING,
97 CPUHP_AP_ARC_TIMER_STARTING,
98 CPUHP_AP_KVM_STARTING,
99 CPUHP_AP_KVM_ARM_VGIC_INIT_STARTING,
100 CPUHP_AP_KVM_ARM_VGIC_STARTING,
101 CPUHP_AP_KVM_ARM_TIMER_STARTING,
102 CPUHP_AP_ARM_XEN_STARTING,
103 CPUHP_AP_ARM_CORESIGHT_STARTING,
104 CPUHP_AP_ARM_CORESIGHT4_STARTING,
105 CPUHP_AP_ARM64_ISNDEP_STARTING,
106 CPUHP_AP_SMPCFD_DYING,
107 CPUHP_AP_X86_TBOOT_DYING,
110 CPUHP_AP_ONLINE_IDLE,
111 CPUHP_AP_SMPBOOT_THREADS,
112 CPUHP_AP_X86_VDSO_VMA_ONLINE,
113 CPUHP_AP_PERF_ONLINE,
114 CPUHP_AP_PERF_X86_ONLINE,
115 CPUHP_AP_PERF_X86_UNCORE_ONLINE,
116 CPUHP_AP_PERF_X86_AMD_UNCORE_ONLINE,
117 CPUHP_AP_PERF_X86_AMD_POWER_ONLINE,
118 CPUHP_AP_PERF_X86_RAPL_ONLINE,
119 CPUHP_AP_PERF_X86_CQM_ONLINE,
120 CPUHP_AP_PERF_X86_CSTATE_ONLINE,
121 CPUHP_AP_PERF_S390_CF_ONLINE,
122 CPUHP_AP_PERF_S390_SF_ONLINE,
123 CPUHP_AP_PERF_ARM_CCI_ONLINE,
124 CPUHP_AP_PERF_ARM_CCN_ONLINE,
125 CPUHP_AP_PERF_ARM_L2X0_ONLINE,
126 CPUHP_AP_WORKQUEUE_ONLINE,
127 CPUHP_AP_RCUTREE_ONLINE,
128 CPUHP_AP_NOTIFY_ONLINE,
130 CPUHP_AP_ONLINE_DYN_END = CPUHP_AP_ONLINE_DYN + 30,
131 CPUHP_AP_X86_HPET_ONLINE,
132 CPUHP_AP_X86_KVM_CLK_ONLINE,
137 int __cpuhp_setup_state(enum cpuhp_state state, const char *name, bool invoke,
138 int (*startup)(unsigned int cpu),
139 int (*teardown)(unsigned int cpu), bool multi_instance);
142 * cpuhp_setup_state - Setup hotplug state callbacks with calling the callbacks
143 * @state: The state for which the calls are installed
144 * @name: Name of the callback (will be used in debug output)
145 * @startup: startup callback function
146 * @teardown: teardown callback function
148 * Installs the callback functions and invokes the startup callback on
149 * the present cpus which have already reached the @state.
151 static inline int cpuhp_setup_state(enum cpuhp_state state,
153 int (*startup)(unsigned int cpu),
154 int (*teardown)(unsigned int cpu))
156 return __cpuhp_setup_state(state, name, true, startup, teardown, false);
160 * cpuhp_setup_state_nocalls - Setup hotplug state callbacks without calling the
162 * @state: The state for which the calls are installed
163 * @name: Name of the callback.
164 * @startup: startup callback function
165 * @teardown: teardown callback function
167 * Same as @cpuhp_setup_state except that no calls are executed are invoked
168 * during installation of this callback. NOP if SMP=n or HOTPLUG_CPU=n.
170 static inline int cpuhp_setup_state_nocalls(enum cpuhp_state state,
172 int (*startup)(unsigned int cpu),
173 int (*teardown)(unsigned int cpu))
175 return __cpuhp_setup_state(state, name, false, startup, teardown,
180 * cpuhp_setup_state_multi - Add callbacks for multi state
181 * @state: The state for which the calls are installed
182 * @name: Name of the callback.
183 * @startup: startup callback function
184 * @teardown: teardown callback function
186 * Sets the internal multi_instance flag and prepares a state to work as a multi
187 * instance callback. No callbacks are invoked at this point. The callbacks are
188 * invoked once an instance for this state are registered via
189 * @cpuhp_state_add_instance or @cpuhp_state_add_instance_nocalls.
191 static inline int cpuhp_setup_state_multi(enum cpuhp_state state,
193 int (*startup)(unsigned int cpu,
194 struct hlist_node *node),
195 int (*teardown)(unsigned int cpu,
196 struct hlist_node *node))
198 return __cpuhp_setup_state(state, name, false,
200 (void *) teardown, true);
203 int __cpuhp_state_add_instance(enum cpuhp_state state, struct hlist_node *node,
207 * cpuhp_state_add_instance - Add an instance for a state and invoke startup
209 * @state: The state for which the instance is installed
210 * @node: The node for this individual state.
212 * Installs the instance for the @state and invokes the startup callback on
213 * the present cpus which have already reached the @state. The @state must have
214 * been earlier marked as multi-instance by @cpuhp_setup_state_multi.
216 static inline int cpuhp_state_add_instance(enum cpuhp_state state,
217 struct hlist_node *node)
219 return __cpuhp_state_add_instance(state, node, true);
223 * cpuhp_state_add_instance_nocalls - Add an instance for a state without
224 * invoking the startup callback.
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 The @state must have been earlier
229 * marked as multi-instance by @cpuhp_setup_state_multi.
231 static inline int cpuhp_state_add_instance_nocalls(enum cpuhp_state state,
232 struct hlist_node *node)
234 return __cpuhp_state_add_instance(state, node, false);
237 void __cpuhp_remove_state(enum cpuhp_state state, bool invoke);
240 * cpuhp_remove_state - Remove hotplug state callbacks and invoke the teardown
241 * @state: The state for which the calls are removed
243 * Removes the callback functions and invokes the teardown callback on
244 * the present cpus which have already reached the @state.
246 static inline void cpuhp_remove_state(enum cpuhp_state state)
248 __cpuhp_remove_state(state, true);
252 * cpuhp_remove_state_nocalls - Remove hotplug state callbacks without invoking
254 * @state: The state for which the calls are removed
256 static inline void cpuhp_remove_state_nocalls(enum cpuhp_state state)
258 __cpuhp_remove_state(state, false);
262 * cpuhp_remove_multi_state - Remove hotplug multi state callback
263 * @state: The state for which the calls are removed
265 * Removes the callback functions from a multi state. This is the reverse of
266 * cpuhp_setup_state_multi(). All instances should have been removed before
267 * invoking this function.
269 static inline void cpuhp_remove_multi_state(enum cpuhp_state state)
271 __cpuhp_remove_state(state, false);
274 int __cpuhp_state_remove_instance(enum cpuhp_state state,
275 struct hlist_node *node, bool invoke);
278 * cpuhp_state_remove_instance - Remove hotplug instance from state and invoke
279 * the teardown callback
280 * @state: The state from which the instance is removed
281 * @node: The node for this individual state.
283 * Removes the instance and invokes the teardown callback on the present cpus
284 * which have already reached the @state.
286 static inline int cpuhp_state_remove_instance(enum cpuhp_state state,
287 struct hlist_node *node)
289 return __cpuhp_state_remove_instance(state, node, true);
293 * cpuhp_state_remove_instance_nocalls - Remove hotplug instance from state
294 * without invoking the reatdown callback
295 * @state: The state from which the instance is removed
296 * @node: The node for this individual state.
298 * Removes the instance without invoking the teardown callback.
300 static inline int cpuhp_state_remove_instance_nocalls(enum cpuhp_state state,
301 struct hlist_node *node)
303 return __cpuhp_state_remove_instance(state, node, false);
307 void cpuhp_online_idle(enum cpuhp_state state);
309 static inline void cpuhp_online_idle(enum cpuhp_state state) { }