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File: [Development] / linux-2.6-xfs / include / asm-x86_64 / Attic / delay.h (download)

Revision 1.1, Tue Dec 30 23:58:53 2003 UTC (13 years, 10 months ago) by cattelan
Branch: MAIN 

Initial Import 2.6.0

#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) */