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idle: Provide a generic entry point for the idle code

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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: Thomas 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: Cc: 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.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2013-03-21 22:49:34 +01:00
parent 3a98f871ec
commit a1a04ec3c7
5 changed files with 21 additions and 1 deletions
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8
include/linux/cpu.h
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@ -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_ */