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
) { }