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     ˆÂÁƒ›sÀ¿Ã Ð    /*
 * Internal Header for the Direct Rendering Manager
 *
 * Copyright 2018 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef _DRM_UTIL_H_
#define _DRM_UTIL_H_

/**
 * DOC: drm utils
 *
 * Macros and inline functions that does not naturally belong in other places
 */

#include <linux/interrupt.h>
#include <linux/kgdb.h>
#include <linux/preempt.h>
#include <linux/smp.h>
#include <linux/util_macros.h>

/*
 * Use EXPORT_SYMBOL_FOR_TESTS_ONLY() for functions that shall
 * only be visible for drmselftests.
 */
#if defined(CONFIG_DRM_EXPORT_FOR_TESTS)
#define EXPORT_SYMBOL_FOR_TESTS_ONLY(x) EXPORT_SYMBOL(x)
#else
#define EXPORT_SYMBOL_FOR_TESTS_ONLY(x)
#endif

/**
 * drm_can_sleep - returns true if currently okay to sleep
 *
 * This function shall not be used in new code.
 * The check for running in atomic context may not work - see linux/preempt.h.
 *
 * FIXME: All users of drm_can_sleep should be removed (see todo.rst)
 *
 * Returns:
 * False if kgdb is active, we are in atomic context or irqs are disabled.
 */
static inline bool drm_can_sleep(void)
{
	if (in_atomic() || in_dbg_master() || irqs_disabled())
		return false;
	return true;
}

#endif
     ˆÂÁƒ€ïÀ¿Ã ·    /* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_GENERIC_BITS_PER_LONG
#define __ASM_GENERIC_BITS_PER_LONG

#include <uapi/asm-generic/bitsperlong.h>


#ifdef CONFIG_64BIT
#define BITS_PER_LONG 64
#else
#define BITS_PER_LONG 32
#endif /* CONFIG_64BIT */

/*
 * FIXME: The check currently breaks x86-64 build, so it's
 * temporarily disabled. Please fix x86-64 and reenable
 */
#if 0 && BITS_PER_LONG != __BITS_PER_LONG
#error Inconsistent word size. Check asm/bitsperlong.h
#endif

#ifndef BITS_PER_LONG_LONG
#define BITS_PER_LONG_LONG 64
#endif

/*
 * small_const_nbits(n) is true precisely when it is known at compile-time
 * that BITMAP_SIZE(n) is 1, i.e. 1 <= n <= BITS_PER_LONG. This allows
 * various bit/bitmap APIs to provide a fast inline implementation. Bitmaps
 * of size 0 are very rare, and a compile-time-known-size 0 is most likely
 * a sign of error. They will be handled correctly by the bit/bitmap APIs,
 * but using the out-of-line functions, so that the inline implementations
 * can unconditionally dereference the pointer(s).
 */
#define small_const_nbits(nbits) \
	(__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG && (nbits) > 0)

#endif /* __ASM_GENERIC_BITS_PER_LONG */
     ˆÂÁƒy ?À¿Ã  Ù    /* SPDX-License-Identifier: GPL-2.0 */
/*
 *	Generic watchdog defines. Derived from..
 *
 * Berkshire PC Watchdog Defines
 * by Ken Hollis <khollis@bitgate.com>
 *
 */
#ifndef _LINUX_WATCHDOG_H
#define _LINUX_WATCHDOG_H


#include <linux/bitops.h>
#include <linux/cdev.h>
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/notifier.h>
#include <uapi/linux/watchdog.h>

struct watchdog_ops;
struct watchdog_device;
struct watchdog_core_data;
struct watchdog_governor;

/** struct watchdog_ops - The watchdog-devices operat