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score: Use generic idle loop

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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>
Cc: Lennox Wu <lennox.wu@gmail.com>
Link: http://lkml.kernel.org/r/20130321215235.147909863@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2013-03-21 22:49:58 +01:00
parent 52c0065947
commit 99444202b9
2 changed files with 1 additions and 18 deletions
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1
arch/score/Kconfig
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@ -11,6 +11,7 @@ config SCORE
select ARCH_DISCARD_MEMBLOCK
select GENERIC_CPU_DEVICES
select GENERIC_CLOCKEVENTS
select GENERIC_IDLE_LOOP
select HAVE_MOD_ARCH_SPECIFIC
select VIRT_TO_BUS
select MODULES_USE_ELF_REL

18
arch/score/kernel/process.c
View File

@ -41,24 +41,6 @@ void machine_halt(void) {}
/* If or when software machine-power-off is implemented, add code here. */
void machine_power_off(void) {}
/*
* The idle thread. There's no useful work to be
* done, so just try to conserve power and have a
* low exit latency (ie sit in a loop waiting for
* somebody to say that they'd like to reschedule)
*/
void __noreturn cpu_idle(void)
{
/* endless idle loop with no priority at all */
while (1) {
rcu_idle_enter();
while (!need_resched())
barrier();
rcu_idle_exit();
schedule_preempt_disabled();
}
}
void ret_from_fork(void);
void ret_from_kernel_thread(void);