// SPDX-License-Identifier: GPL-2.0/* * The idle loop for all SuperH platforms. * *  Copyright (C) 2002 - 2009  Paul Mundt */#include <linux/cpu.h>#include <linux/module.h>#include <linux/init.h>#include <linux/mm.h>#include <linux/pm.h>#include <linux/tick.h>#include <linux/preempt.h>#include <linux/thread_info.h>#include <linux/irqflags.h>#include <linux/smp.h>#include <linux/atomic.h>#include <asm/processor.h>#include <asm/smp.h>#include <asm/bl_bit.h> static void (*sh_idle)(void); void default_idle(void){	set_bl_bit();	raw_local_irq_enable();	/* Isn't this racy ? */	cpu_sleep();	raw_local_irq_disable();	clear_bl_bit();} void __noreturn arch_cpu_idle_dead(void){	play_dead();} void arch_cpu_idle(void){	sh_idle();} void __init select_idle_routine(void){	/*	 * If a platform has set its own idle routine, leave it alone.	 */	if (!sh_idle)		sh_idle = default_idle;} void stop_this_cpu(void *unused){	local_irq_disable();	set_cpu_online(smp_processor_id(), false); 	for (;;)		cpu_sleep();}