1/*-
2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * Copyright (c) 2013-2021 Mellanox Technologies, Ltd.
6 * Copyright (c) 2014 Fran��ois Tigeot
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice unmodified, this list of conditions, and the following
14 *    disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30#ifndef _LINUXKPI_LINUX_DELAY_H_
31#define	_LINUXKPI_LINUX_DELAY_H_
32
33#include <linux/jiffies.h>
34#include <sys/systm.h>
35
36static inline void
37linux_msleep(unsigned int ms)
38{
39	/* guard against invalid values */
40	if (ms == 0)
41		ms = 1;
42	pause_sbt("lnxsleep", mstosbt(ms), 0, C_HARDCLOCK);
43}
44
45#undef msleep
46#define	msleep(ms) linux_msleep(ms)
47
48#undef msleep_interruptible
49#define	msleep_interruptible(ms) linux_msleep_interruptible(ms)
50
51#define	udelay(t)	DELAY(t)
52
53static inline void
54mdelay(unsigned long msecs)
55{
56	while (msecs--)
57		DELAY(1000);
58}
59
60static inline void
61ndelay(unsigned long x)
62{
63	DELAY(howmany(x, 1000));
64}
65
66static inline void
67usleep_range(unsigned long min, unsigned long max)
68{
69	/* guard against invalid values */
70	if (min == 0)
71		min = 1;
72	pause_sbt("lnxsleep", ustosbt(min), 0, C_HARDCLOCK);
73}
74
75extern unsigned int linux_msleep_interruptible(unsigned int ms);
76
77static inline void
78fsleep(unsigned long us)
79{
80
81	if (us < 10)
82		udelay(us);
83	else
84		usleep_range(us, us);
85}
86
87#endif	/* _LINUXKPI_LINUX_DELAY_H_ */
88