8 CPUHP_PERF_X86_PREPARE
,
9 CPUHP_PERF_X86_UNCORE_PREP
,
10 CPUHP_PERF_X86_AMD_UNCORE_PREP
,
11 CPUHP_PERF_X86_RAPL_PREP
,
19 CPUHP_MM_WRITEBACK_DEAD
,
21 CPUHP_NET_MVNETA_DEAD
,
24 CPUHP_POWER_NUMA_PREPARE
,
25 CPUHP_HRTIMERS_PREPARE
,
26 CPUHP_PROFILE_PREPARE
,
31 CPUHP_MD_RAID5_PREPARE
,
33 CPUHP_CPUIDLE_COUPLED_PREPARE
,
34 CPUHP_POWERPC_PMAC_PREPARE
,
35 CPUHP_POWERPC_MMU_CTX_PREPARE
,
41 CPUHP_AP_SCHED_STARTING
,
42 CPUHP_AP_RCUTREE_DYING
,
43 CPUHP_AP_IRQ_GIC_STARTING
,
44 CPUHP_AP_IRQ_GICV3_STARTING
,
45 CPUHP_AP_IRQ_HIP04_STARTING
,
46 CPUHP_AP_IRQ_ARMADA_XP_STARTING
,
47 CPUHP_AP_IRQ_ARMADA_CASC_STARTING
,
48 CPUHP_AP_IRQ_BCM2836_STARTING
,
49 CPUHP_AP_ARM_MVEBU_COHERENCY
,
50 CPUHP_AP_PERF_X86_UNCORE_STARTING
,
51 CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING
,
52 CPUHP_AP_PERF_X86_STARTING
,
53 CPUHP_AP_PERF_X86_AMD_IBS_STARTING
,
54 CPUHP_AP_PERF_X86_CQM_STARTING
,
55 CPUHP_AP_PERF_X86_CSTATE_STARTING
,
56 CPUHP_AP_PERF_XTENSA_STARTING
,
57 CPUHP_AP_PERF_METAG_STARTING
,
58 CPUHP_AP_MIPS_OP_LOONGSON3_STARTING
,
59 CPUHP_AP_ARM_VFP_STARTING
,
60 CPUHP_AP_ARM64_DEBUG_MONITORS_STARTING
,
61 CPUHP_AP_PERF_ARM_HW_BREAKPOINT_STARTING
,
62 CPUHP_AP_PERF_ARM_STARTING
,
63 CPUHP_AP_ARM_L2X0_STARTING
,
64 CPUHP_AP_ARM_ARCH_TIMER_STARTING
,
65 CPUHP_AP_ARM_GLOBAL_TIMER_STARTING
,
66 CPUHP_AP_DUMMY_TIMER_STARTING
,
67 CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING
,
68 CPUHP_AP_ARM_TWD_STARTING
,
69 CPUHP_AP_METAG_TIMER_STARTING
,
70 CPUHP_AP_QCOM_TIMER_STARTING
,
71 CPUHP_AP_ARMADA_TIMER_STARTING
,
72 CPUHP_AP_MARCO_TIMER_STARTING
,
73 CPUHP_AP_MIPS_GIC_TIMER_STARTING
,
74 CPUHP_AP_ARC_TIMER_STARTING
,
75 CPUHP_AP_KVM_STARTING
,
76 CPUHP_AP_KVM_ARM_VGIC_INIT_STARTING
,
77 CPUHP_AP_KVM_ARM_VGIC_STARTING
,
78 CPUHP_AP_KVM_ARM_TIMER_STARTING
,
79 CPUHP_AP_ARM_XEN_STARTING
,
80 CPUHP_AP_ARM_CORESIGHT_STARTING
,
81 CPUHP_AP_ARM_CORESIGHT4_STARTING
,
82 CPUHP_AP_ARM64_ISNDEP_STARTING
,
83 CPUHP_AP_SMPCFD_DYING
,
84 CPUHP_AP_X86_TBOOT_DYING
,
88 CPUHP_AP_SMPBOOT_THREADS
,
89 CPUHP_AP_X86_VDSO_VMA_ONLINE
,
91 CPUHP_AP_PERF_X86_ONLINE
,
92 CPUHP_AP_PERF_X86_UNCORE_ONLINE
,
93 CPUHP_AP_PERF_X86_AMD_UNCORE_ONLINE
,
94 CPUHP_AP_PERF_X86_AMD_POWER_ONLINE
,
95 CPUHP_AP_PERF_X86_RAPL_ONLINE
,
96 CPUHP_AP_PERF_X86_CQM_ONLINE
,
97 CPUHP_AP_PERF_X86_CSTATE_ONLINE
,
98 CPUHP_AP_PERF_S390_CF_ONLINE
,
99 CPUHP_AP_PERF_S390_SF_ONLINE
,
100 CPUHP_AP_PERF_ARM_CCI_ONLINE
,
101 CPUHP_AP_PERF_ARM_CCN_ONLINE
,
102 CPUHP_AP_PERF_ARM_L2X0_ONLINE
,
103 CPUHP_AP_WORKQUEUE_ONLINE
,
104 CPUHP_AP_RCUTREE_ONLINE
,
105 CPUHP_AP_NOTIFY_ONLINE
,
107 CPUHP_AP_ONLINE_DYN_END
= CPUHP_AP_ONLINE_DYN
+ 30,
108 CPUHP_AP_X86_HPET_ONLINE
,
109 CPUHP_AP_X86_KVM_CLK_ONLINE
,
114 int __cpuhp_setup_state(enum cpuhp_state state
, const char *name
, bool invoke
,
115 int (*startup
)(unsigned int cpu
),
116 int (*teardown
)(unsigned int cpu
), bool multi_instance
);
119 * cpuhp_setup_state - Setup hotplug state callbacks with calling the callbacks
120 * @state: The state for which the calls are installed
121 * @name: Name of the callback (will be used in debug output)
122 * @startup: startup callback function
123 * @teardown: teardown callback function
125 * Installs the callback functions and invokes the startup callback on
126 * the present cpus which have already reached the @state.
128 static inline int cpuhp_setup_state(enum cpuhp_state state
,
130 int (*startup
)(unsigned int cpu
),
131 int (*teardown
)(unsigned int cpu
))
133 return __cpuhp_setup_state(state
, name
, true, startup
, teardown
, false);
137 * cpuhp_setup_state_nocalls - Setup hotplug state callbacks without calling the
139 * @state: The state for which the calls are installed
140 * @name: Name of the callback.
141 * @startup: startup callback function
142 * @teardown: teardown callback function
144 * Same as @cpuhp_setup_state except that no calls are executed are invoked
145 * during installation of this callback. NOP if SMP=n or HOTPLUG_CPU=n.
147 static inline int cpuhp_setup_state_nocalls(enum cpuhp_state state
,
149 int (*startup
)(unsigned int cpu
),
150 int (*teardown
)(unsigned int cpu
))
152 return __cpuhp_setup_state(state
, name
, false, startup
, teardown
,
157 * cpuhp_setup_state_multi - Add callbacks for multi state
158 * @state: The state for which the calls are installed
159 * @name: Name of the callback.
160 * @startup: startup callback function
161 * @teardown: teardown callback function
163 * Sets the internal multi_instance flag and prepares a state to work as a multi
164 * instance callback. No callbacks are invoked at this point. The callbacks are
165 * invoked once an instance for this state are registered via
166 * @cpuhp_state_add_instance or @cpuhp_state_add_instance_nocalls.
168 static inline int cpuhp_setup_state_multi(enum cpuhp_state state
,
170 int (*startup
)(unsigned int cpu
,
171 struct hlist_node
*node
),
172 int (*teardown
)(unsigned int cpu
,
173 struct hlist_node
*node
))
175 return __cpuhp_setup_state(state
, name
, false,
177 (void *) teardown
, true);
180 int __cpuhp_state_add_instance(enum cpuhp_state state
, struct hlist_node
*node
,
184 * cpuhp_state_add_instance - Add an instance for a state and invoke startup
186 * @state: The state for which the instance is installed
187 * @node: The node for this individual state.
189 * Installs the instance for the @state and invokes the startup callback on
190 * the present cpus which have already reached the @state. The @state must have
191 * been earlier marked as multi-instance by @cpuhp_setup_state_multi.
193 static inline int cpuhp_state_add_instance(enum cpuhp_state state
,
194 struct hlist_node
*node
)
196 return __cpuhp_state_add_instance(state
, node
, true);
200 * cpuhp_state_add_instance_nocalls - Add an instance for a state without
201 * invoking the startup callback.
202 * @state: The state for which the instance is installed
203 * @node: The node for this individual state.
205 * Installs the instance for the @state The @state must have been earlier
206 * marked as multi-instance by @cpuhp_setup_state_multi.
208 static inline int cpuhp_state_add_instance_nocalls(enum cpuhp_state state
,
209 struct hlist_node
*node
)
211 return __cpuhp_state_add_instance(state
, node
, false);
214 void __cpuhp_remove_state(enum cpuhp_state state
, bool invoke
);
217 * cpuhp_remove_state - Remove hotplug state callbacks and invoke the teardown
218 * @state: The state for which the calls are removed
220 * Removes the callback functions and invokes the teardown callback on
221 * the present cpus which have already reached the @state.
223 static inline void cpuhp_remove_state(enum cpuhp_state state
)
225 __cpuhp_remove_state(state
, true);
229 * cpuhp_remove_state_nocalls - Remove hotplug state callbacks without invoking
231 * @state: The state for which the calls are removed
233 static inline void cpuhp_remove_state_nocalls(enum cpuhp_state state
)
235 __cpuhp_remove_state(state
, false);
239 * cpuhp_remove_multi_state - Remove hotplug multi state callback
240 * @state: The state for which the calls are removed
242 * Removes the callback functions from a multi state. This is the reverse of
243 * cpuhp_setup_state_multi(). All instances should have been removed before
244 * invoking this function.
246 static inline void cpuhp_remove_multi_state(enum cpuhp_state state
)
248 __cpuhp_remove_state(state
, false);
251 int __cpuhp_state_remove_instance(enum cpuhp_state state
,
252 struct hlist_node
*node
, bool invoke
);
255 * cpuhp_state_remove_instance - Remove hotplug instance from state and invoke
256 * the teardown callback
257 * @state: The state from which the instance is removed
258 * @node: The node for this individual state.
260 * Removes the instance and invokes the teardown callback on the present cpus
261 * which have already reached the @state.
263 static inline int cpuhp_state_remove_instance(enum cpuhp_state state
,
264 struct hlist_node
*node
)
266 return __cpuhp_state_remove_instance(state
, node
, true);
270 * cpuhp_state_remove_instance_nocalls - Remove hotplug instance from state
271 * without invoking the reatdown callback
272 * @state: The state from which the instance is removed
273 * @node: The node for this individual state.
275 * Removes the instance without invoking the teardown callback.
277 static inline int cpuhp_state_remove_instance_nocalls(enum cpuhp_state state
,
278 struct hlist_node
*node
)
280 return __cpuhp_state_remove_instance(state
, node
, false);
284 void cpuhp_online_idle(enum cpuhp_state state
);
286 static inline void cpuhp_online_idle(enum cpuhp_state state
) { }