1#ifndef _X8664_DELAY_H
2#define _X8664_DELAY_H
3
4/*
5 * Copyright (C) 1993 Linus Torvalds
6 *
7 * Delay routines calling functions in arch/i386/lib/delay.c
8 */
9
10extern void __bad_udelay(void);
11
12extern void __udelay(unsigned long usecs);
13extern void __const_udelay(unsigned long usecs);
14extern void __delay(unsigned long loops);
15
16#define udelay(n) (__builtin_constant_p(n) ? \
17	((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \
18	__udelay(n))
19
20#endif /* defined(_X8664_DELAY_H) */
21