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     ˆÈÇƒ¯7Æ¿Ä ù    #ifndef _LINUX_PSI_H
#define _LINUX_PSI_H

#include <linux/jump_label.h>
#include <linux/psi_types.h>
#include <linux/sched.h>
#include <linux/poll.h>
#include <linux/cgroup-defs.h>
#include <linux/cgroup.h>

struct seq_file;
struct css_set;

#ifdef CONFIG_PSI

extern struct static_key_false psi_disabled;
extern struct psi_group psi_system;

void psi_init(void);

void psi_memstall_enter(unsigned long *flags);
void psi_memstall_leave(unsigned long *flags);

int psi_show(struct seq_file *s, struct psi_group *group, enum psi_res res);
struct psi_trigger *psi_trigger_create(struct psi_group *group, char *buf,
				       enum psi_res res, struct file *file,
				       struct kernfs_open_file *of);
void psi_trigger_destroy(struct psi_trigger *t);

__poll_t psi_trigger_poll(void **trigger_ptr, struct file *file,
			poll_table *wait);

#ifdef CONFIG_CGROUPS
static inline struct psi_group *cgroup_psi(struct cgroup *cgrp)
{
	return cgroup_ino(cgrp) == 1 ? &psi_system : cgrp->psi;
}

int psi_cgroup_alloc(struct cgroup *cgrp);
void psi_cgroup_free(struct cgroup *cgrp);
void cgroup_move_task(struct task_struct *p, struct css_set *to);
void psi_cgroup_restart(struct psi_group *group);
#endif

#else /* CONFIG_PSI */

static inline void psi_init(void) {}

static inline void psi_memstall_enter(unsigned long *flags) {}
static inline void psi_memstall_leave(unsigned long *flags) {}

#ifdef CONFIG_CGROUPS
static inline int psi_cgroup_alloc(struct cgroup *cgrp)
{
	return 0;
}
static inline void psi_cgroup_free(struct cgroup *cgrp)
{
}
static inline void cgroup_move_task(struct task_struct *p, struct css_set *to)
{
	rcu_assign_pointer(p->cgroups, to);
}
static inline void psi_cgroup_restart(struct psi_group *group) {}
#endif

#endif /* CONFIG_PSI */

#endif /* _LINUX_PSI_H */
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     !ˆÈÇƒi°7Æ¿Ä ™    !/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) 1999-2002 Vojtech Pavlik
 */
#ifndef _SERIO_H
#define _SERIO_H


#include <linux/cleanup.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/mutex.h>
#include <linux/device.h>
#include <linux/mod_devicetable.h>
#include <uapi/linux/serio.h>

extern struct bus_type serio_bus;

struct serio {
	void *port_data;

	char name[32];
	char phys[32];
	char firmware_id[128];

	bool manual_bind;

	struct serio_device_id id;

	/* Protects critical sections from port's interrupt handler */
	spinlock_t lock;

	int (*write)(struct serio *, unsigned char);
	int (*open)(struct serio *);
	void (*close)(struct serio *);
	int (*start)(struct serio *);
	void (*stop)(struct serio *);

	struct serio *parent;
	/* Entry in parent->children list */
	struct list_head child_node;
	struct list_head children;
	/* Level of nesting in serio hierarchy */
	unsigned int depth;

	/*
	 * serio->drv is accessed from interrupt handlers; when modifying
	 * caller should acquire serio->drv_mutex and serio->lock.
	 */
	struct serio_driver *drv;
	/* Protects serio->drv so attributes can pin current driver */
	struct mutex drv_mutex;

	struct device dev;

	struct list_head node;

	/*
	 * For use by PS/2 layer when several ports share hardware and
	 * may get indigestion when exposed to concurrent access (i8042).
	 */
	struct mutex *ps2_cmd_mutex;
};
#define to_serio_port(d)	container_of(d, struct serio, dev)

struct serio_driver {
	const char *description;

	const struct serio_device_id *id_table;
	bool manual_bind;

	void (*write_wakeup)(struct serio *);
	irqreturn_t (*interrupt)(struct serio *, unsigned char, unsigned int);
	int  (*connect)(struct serio *, struct serio_driver *drv);
	int  (*reconnect)(struct serio *);
	int  (*fast_reconnect)(struct serio *);
	void (*disconnect)(struct serio *);
	void (*cleanup)(struct serio *);

	struct device_driver driver;
};
#define to_serio_driver(d)	container_of_const(d, struct serio_driver, driver)

int serio_open(struct serio *serio, struct serio_driver *drv);
void serio_close(struct serio *serio);
void