28 lines
709 B
C
28 lines
709 B
C
#ifndef _X8664_DELAY_H
|
|
#define _X8664_DELAY_H
|
|
|
|
/*
|
|
* Copyright (C) 1993 Linus Torvalds
|
|
*
|
|
* Delay routines calling functions in arch/x86_64/lib/delay.c
|
|
*/
|
|
|
|
extern void __bad_udelay(void);
|
|
extern void __bad_ndelay(void);
|
|
|
|
extern void __udelay(unsigned long usecs);
|
|
extern void __ndelay(unsigned long usecs);
|
|
extern void __const_udelay(unsigned long usecs);
|
|
extern void __delay(unsigned long loops);
|
|
|
|
#define udelay(n) (__builtin_constant_p(n) ? \
|
|
((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \
|
|
__udelay(n))
|
|
|
|
#define ndelay(n) (__builtin_constant_p(n) ? \
|
|
((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
|
|
__ndelay(n))
|
|
|
|
|
|
#endif /* defined(_X8664_DELAY_H) */
|