forked from luck/tmp_suning_uos_patched
dc775dd886
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: Paul Mundt <lethal@linux-sh.org> Link: http://lkml.kernel.org/r/20130321215235.216323644@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
64 lines
1.2 KiB
C
64 lines
1.2 KiB
C
/*
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* The idle loop for all SuperH platforms.
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*
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* Copyright (C) 2002 - 2009 Paul Mundt
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/mm.h>
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#include <linux/pm.h>
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#include <linux/tick.h>
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#include <linux/preempt.h>
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#include <linux/thread_info.h>
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#include <linux/irqflags.h>
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#include <linux/smp.h>
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#include <linux/cpuidle.h>
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#include <linux/atomic.h>
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#include <asm/pgalloc.h>
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#include <asm/smp.h>
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#include <asm/bl_bit.h>
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static void (*sh_idle)(void);
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void default_idle(void)
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{
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set_bl_bit();
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local_irq_enable();
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/* Isn't this racy ? */
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cpu_sleep();
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clear_bl_bit();
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}
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void arch_cpu_idle_dead(void)
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{
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play_dead();
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}
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void arch_cpu_idle(void)
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{
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if (cpuidle_idle_call())
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sh_idle();
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}
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void __init select_idle_routine(void)
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{
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/*
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* If a platform has set its own idle routine, leave it alone.
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*/
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if (!sh_idle)
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sh_idle = default_idle;
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}
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void stop_this_cpu(void *unused)
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{
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local_irq_disable();
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set_cpu_online(smp_processor_id(), false);
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for (;;)
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cpu_sleep();
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}
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