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Diffstat (limited to 'include/linux/cpu.h')
-rw-r--r--include/linux/cpu.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 4260e8594bd7..c0fb6b1b4712 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -73,6 +73,7 @@ enum {
/* migration should happen before other stuff but after perf */
CPU_PRI_PERF = 20,
CPU_PRI_MIGRATION = 10,
+ CPU_PRI_SMPBOOT = 9,
/* bring up workqueues before normal notifiers and down after */
CPU_PRI_WORKQUEUE_UP = 5,
CPU_PRI_WORKQUEUE_DOWN = -5,
@@ -95,6 +96,10 @@ enum {
* Called on the new cpu, just before
* enabling interrupts. Must not sleep,
* must not fail */
+#define CPU_DYING_IDLE 0x000B /* CPU (unsigned)v dying, reached
+ * idle loop. */
+#define CPU_BROKEN 0x000C /* CPU (unsigned)v did not die properly,
+ * perhaps due to preemption. */
/* Used for CPU hotplug events occurring while tasks are frozen due to a suspend
* operation in progress
@@ -161,6 +166,7 @@ static inline void __unregister_cpu_notifier(struct notifier_block *nb)
}
#endif
+void smpboot_thread_init(void);
int cpu_up(unsigned int cpu);
void notify_cpu_starting(unsigned int cpu);
extern void cpu_maps_update_begin(void);
@@ -208,6 +214,10 @@ static inline void cpu_notifier_register_done(void)
{
}
+static inline void smpboot_thread_init(void)
+{
+}
+
#endif /* CONFIG_SMP */
extern struct bus_type cpu_subsys;
@@ -271,4 +281,14 @@ void arch_cpu_idle_enter(void);
void arch_cpu_idle_exit(void);
void arch_cpu_idle_dead(void);
+DECLARE_PER_CPU(bool, cpu_dead_idle);
+
+int cpu_report_state(int cpu);
+int cpu_check_up_prepare(int cpu);
+void cpu_set_state_online(int cpu);
+#ifdef CONFIG_HOTPLUG_CPU
+bool cpu_wait_death(unsigned int cpu, int seconds);
+bool cpu_report_death(void);
+#endif /* #ifdef CONFIG_HOTPLUG_CPU */
+
#endif /* _LINUX_CPU_H_ */