h8300: Use generic idle loop
Use the core idle poll function instead of the private one 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: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/20130321215234.277153345@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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@ -8,6 +8,7 @@ config H8300
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select VIRT_TO_BUS
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select ARCH_WANT_IPC_PARSE_VERSION
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select GENERIC_IRQ_SHOW
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select GENERIC_IDLE_LOOP
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select GENERIC_CPU_DEVICES
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select MODULES_USE_ELF_RELA
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select OLD_SIGSUSPEND3
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@ -53,40 +53,13 @@ asmlinkage void ret_from_kernel_thread(void);
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* The idle loop on an H8/300..
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*/
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#if !defined(CONFIG_H8300H_SIM) && !defined(CONFIG_H8S_SIM)
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static void default_idle(void)
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void arch_cpu_idle(void)
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{
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local_irq_disable();
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if (!need_resched()) {
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local_irq_enable();
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/* XXX: race here! What if need_resched() gets set now? */
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__asm__("sleep");
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} else
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local_irq_enable();
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}
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#else
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static void default_idle(void)
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{
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cpu_relax();
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local_irq_enable();
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/* XXX: race here! What if need_resched() gets set now? */
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__asm__("sleep");
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}
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#endif
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void (*idle)(void) = default_idle;
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/*
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* The idle thread. There's no useful work to be
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* done, so just try to conserve power and have a
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* low exit latency (ie sit in a loop waiting for
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* somebody to say that they'd like to reschedule)
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*/
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void cpu_idle(void)
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{
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while (1) {
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rcu_idle_enter();
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while (!need_resched())
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idle();
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rcu_idle_exit();
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schedule_preempt_disabled();
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}
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}
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void machine_restart(char * __unused)
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{
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