1 /*- 2 * Copyright (c) 2010 Isilon Systems, Inc. 3 * Copyright (c) 2010 iX Systems, Inc. 4 * Copyright (c) 2010 Panasas, Inc. 5 * Copyright (c) 2013-2015 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 * $FreeBSD$ 31 */ 32#ifndef _LINUX_DELAY_H_ 33#define _LINUX_DELAY_H_ 34 35#include <linux/jiffies.h> 36#include <sys/systm.h> 37 38 static inline void 39 linux_msleep(unsigned int ms) 40{ 41 /* guard against invalid values */ 42 if (ms == 0) 43 ms = 1; 44 pause_sbt("lnxsleep", mstosbt(ms), 0, C_HARDCLOCK); 45} 46 47#undef msleep 48#define msleep(ms) linux_msleep(ms) 49 50#undef msleep_interruptible 51#define msleep_interruptible(ms) linux_msleep_interruptible(ms) 52 53#define udelay(t) DELAY(t) 54 55 static inline void 56 mdelay(unsigned long msecs) 57{ 58 while (msecs--) 59 DELAY(1000); 60} 61 62 static inline void 63 ndelay(unsigned long x) 64{ 65 DELAY(howmany(x, 1000)); 66} 67 68 static inline void 69 usleep_range(unsigned long min, unsigned long max) 70{ 71 DELAY(min); 72} 73 74 extern unsigned int linux_msleep_interruptible(unsigned int ms); 75 76#endif /* _LINUX_DELAY_H_ */ 77