Commit a1a04ec3 authored by Thomas Gleixner's avatar Thomas Gleixner

idle: Provide a generic entry point for the idle code

For now this calls cpu_idle(), but in the long run we want to move the
cpu bringup code to the core and therefor we add a state argument.
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: default avatarCc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Magnus Damm <magnus.damm@gmail.com>
Link: http://lkml.kernel.org/r/20130321215233.583190032@linutronix.deSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 3a98f871
......@@ -212,4 +212,12 @@ static inline int disable_nonboot_cpus(void) { return 0; }
static inline void enable_nonboot_cpus(void) {}
#endif /* !CONFIG_PM_SLEEP_SMP */
enum cpuhp_state {
CPUHP_OFFLINE,
CPUHP_ONLINE,
};
void cpu_startup_entry(enum cpuhp_state state);
void cpu_idle(void);
#endif /* _LINUX_CPU_H_ */
......@@ -384,7 +384,7 @@ static noinline void __init_refok rest_init(void)
init_idle_bootup_task(current);
schedule_preempt_disabled();
/* Call into cpu_idle with preempt disabled */
cpu_idle();
cpu_startup_entry(CPUHP_ONLINE);
}
/* Check for early params. */
......
......@@ -24,6 +24,7 @@ endif
obj-y += sched/
obj-y += power/
obj-y += cpu/
obj-$(CONFIG_CHECKPOINT_RESTORE) += kcmp.o
obj-$(CONFIG_FREEZER) += freezer.o
......
obj-y = idle.o
/*
* Generic entry point for the idle threads
*/
#include <linux/sched.h>
#include <linux/cpu.h>
void cpu_startup_entry(enum cpuhp_state state)
{
cpu_idle();
}
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