0
  *   ˆl–Ü4ý( ©³( 	Å€fàB¦-ÿÀƒs_†I|¥�+ÃÄ &    #ifndef _LINUX_SCHED_ISOLATION_H
#define _LINUX_SCHED_ISOLATION_H

#include <linux/cpumask.h>
#include <linux/cpuset.h>
#include <linux/init.h>
#include <linux/tick.h>

enum hk_type {
	HK_TYPE_DOMAIN,
	HK_TYPE_MANAGED_IRQ,
	HK_TYPE_KERNEL_NOISE,
	HK_TYPE_MAX,

	/*
	 * The following housekeeping types are only set by the nohz_full
	 * boot commandline option. So they can share the same value.
	 */
	HK_TYPE_TICK    = HK_TYPE_KERNEL_NOISE,
	HK_TYPE_TIMER   = HK_TYPE_KERNEL_NOISE,
	HK_TYPE_RCU     = HK_TYPE_KERNEL_NOISE,
	HK_TYPE_MISC    = HK_TYPE_KERNEL_NOISE,
	HK_TYPE_WQ      = HK_TYPE_KERNEL_NOISE,
	HK_TYPE_KTHREAD = HK_TYPE_KERNEL_NOISE
};

#ifdef CONFIG_CPU_ISOLATION
DECLARE_STATIC_KEY_FALSE(housekeeping_overridden);
extern int housekeeping_any_cpu(enum hk_type type);
extern const struct cpumask *housekeeping_cpumask(enum hk_type type);
extern bool housekeeping_enabled(enum hk_type type);
extern void housekeeping_affine(struct task_struct *t, enum hk_type type);
extern bool housekeeping_test_cpu(int cpu, enum hk_type type);
extern void __init housekeeping_init(void);

#else

static inline int housekeeping_any_cpu(enum hk_type type)
{
	return smp_processor_id();
}

static inline const struct cpumask *housekeeping_cpumask(enum hk_type type)
{
	return cpu_possible_mask;
}

static inline bool housekeeping_enabled(enum hk_type type)
{
	return false;
}

static inline void housekeeping_affine(struct task_struct *t,
				       enum hk_type type) { }

static inline bool housekeeping_test_cpu(int cpu, enum hk_type type)
{
	return true;
}

static inline void housekeeping_init(void) { }
#endif /* CONFIG_CPU_ISOLATION */

static inline bool housekeeping_cpu(int cpu, enum hk_type type)
{
#ifdef CONFIG_CPU_ISOLATION
	if (static_branch_unlikely(&housekeeping_overridden))
		return housekeeping_test_cpu(cpu, type);
#endif
	return true;
}

static inline bool cpu_is_isolated(int cpu)
{
	return !housekeeping_test_cpu(cpu, HK_TYPE_DOMAIN) ||
	       !housekeeping_test_cpu(cpu, HK_TYPE_TICK) ||
	       cpuset_cpu_is_isolated(cpu);
}

#endif /* _LINUX_SCHED_ISOLATION_H */
  
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     ˆ¿Á345¾ÃÄ Y    /* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (c) 2006 Simtec Electronics
 *	http://armlinux.simtec.co.uk/
 *	Ben Dooks <ben@simtec.co.uk>
 *
 * S3C24XX - LEDs GPIO connector
*/

#ifnd