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     ˆÁÀƒlµ¿ÃÂ 	æ    /* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_DELAY_H
#define _LINUX_DELAY_H

/*
 * Copyright (C) 1993 Linus Torvalds
 *
 * Delay routines, using a pre-computed "loops_per_jiffy" value.
 *
 * Please note that ndelay(), udelay() and mdelay() may return early for
 * several reasons:
 *  1. computed loops_per_jiffy too low (due to the time taken to
 *     execute the timer interrupt.)
 *  2. cache behaviour affecting the time it takes to execute the
 *     loop function.
 *  3. CPU clock rate changes.
 *
 * Please see this thread:
 *   https://lists.openwall.net/linux-kernel/2011/01/09/56
 */

#include <linux/math.h>
#include <linux/sched.h>

extern unsigned long loops_per_jiffy;

#include <asm/delay.h>

/*
 * Using udelay() for intervals greater than a few milliseconds can
 * risk overflow for high loops_per_jiffy (high bogomips) machines. The
 * mdelay() provides a wrapper to prevent this.  For delays greater
 * than MAX_UDELAY_MS milliseconds, the wrapper is used.  Architecture
 * specific values can be defined in asm-???/delay.h as an override.
 * The 2nd mdelay() definition ensures GCC will optimize away the 
 * while loop for the common cases where n <= MAX_UDELAY_MS  --  Paul G.
 */

#ifndef MAX_UDELAY_MS
#define MAX_UDELAY_MS	5
#endif

#ifndef mdelay
#define mdelay(n) (\
	(__builtin_constant_p(n) && (n)<=MAX_UDELAY_MS) ? udelay((n)*1000) : \
	({unsigned long __ms=(n); while (__ms--) udelay(1000);}))
#endif

#ifndef ndelay
static inline void ndelay(unsigned long x)
{
	udelay(DIV_ROUND_UP(x, 1000));
}
#define ndelay(x) ndelay(x)
#endif

extern unsigned long lpj_fine;
void calibrate_delay(void);
unsigned long calibrate_delay_is_known(void);
void __attribute__((weak)) calibration_delay_done(void);
void msleep(unsigned int msecs);
unsigned long msleep_interruptible(unsigned int msecs);
void usleep_range_state(unsigned long min, unsigned long max,
			unsigned int state);

static inline void usleep_range(unsigned long min, unsigned long max)
{
	usleep_range_state(min, max, TASK_UNINTERRUPTIBLE);
}

static inline void usleep_idle_range(unsigned long min, unsigned long max)
{
	usleep_range_state(min, max, TASK_IDLE);
}

static inline void ssleep(unsigned int seconds)
{
	msleep(seconds * 1000);
}

/* see Documentation/timers/timers-howto.rst for the thresholds */
static inline void fsleep(unsigned long usecs)
{
	if (usecs <= 10)
		udelay(usecs);
	else if (usecs <= 20000)
		usleep_range(usecs, 2 * usecs);
	else
		msleep(DIV_ROUND_UP(usecs, 1000));
}

#endif /* defined(_LINUX_DELAY_H) */
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Ë    /* SPDX-License-Identifier: GPL-2.0 */
/*
 * devfreq_cooling: Thermal cooling device implementation for devices using
 *                  devfreq
 *
 * Copyright (C) 2014-2015 ARM Limited
 *
 */

#ifndef __DEVFREQ_COOLING_H__
#define __DEVFREQ_COOLING_H__

#include <linux/devfreq.h>
#include <linux/thermal.h>


/**
 * struct devfreq_cooling_power - Devfreq cooling power ops
 * @get_real_power:	When this is set, the framework uses it to ask the
 *			device driver for the actual power.
 *			Some devices have more sophisticated methods
 *			(like power counters) to approximate the actual power
 *			that they use.
 *			This function provides more accurate data to the
 *			thermal governor. When the driver does not provide
 *			such function, framework just uses pre-calculated
 *			table and scale the power by 'utilization'
 *			(based on 'busy_time' and 'total_time' taken from
 *			devfreq 'last_status').
 *			The value returned by this function must be lower
 *			or equal than the maximum power value
 *			for the current	state
 *			(which can be found in power_table[state]).
 *			When this interface is used, the power_table holds
 *			max total (static + dynamic) power value for each OPP.
 */
struct devfreq_cooling_power {
	int (*get_real_power)(struct devfreq *df, u32 *power,
			      unsigned long freq, unsigned long voltage);
};

#ifdef CONFIG_DEVFREQ_THER