Cregit: Linux 6.4: idle.c

Contributors: 10
Author	Tokens	Token Proportion	Commits	Commit Proportion
Paul Mundt	106	75.18%	14	51.85%
Thomas Gleixner	10	7.09%	1	3.70%
Len Brown	5	3.55%	1	3.70%
Linus Torvalds (pre-git)	5	3.55%	3	11.11%
Peter Zijlstra	4	2.84%	2	7.41%
Josh Poimboeuf	4	2.84%	2	7.41%
Kuninori Morimoto	2	1.42%	1	3.70%
David Howells	2	1.42%	1	3.70%
Daniel Jacobowitz	2	1.42%	1	3.70%
Arnd Bergmann	1	0.71%	1	3.70%
Total	141		27

// 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/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();
}