blob: 2901ea0c342d9a231147ee1d1ebdb7e4c6ba772b (
plain) (
tree)
|
|
/* delay.h: Linux delay routines on sparc64.
*
* Copyright (C) 1996, 2004 David S. Miller (davem@davemloft.net).
*
* Based heavily upon x86 variant which is:
* Copyright (C) 1993 Linus Torvalds
*
* Delay routines calling functions in arch/sparc64/lib/delay.c
*/
#ifndef __SPARC64_DELAY_H
#define __SPARC64_DELAY_H
#include <linux/config.h>
#include <linux/param.h>
#include <asm/cpudata.h>
#ifndef __ASSEMBLY__
extern void __bad_udelay(void);
extern void __bad_ndelay(void);
extern void __udelay(unsigned long usecs);
extern void __ndelay(unsigned long nsecs);
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) * 0x10c7ul)) : \
__udelay(n))
#define ndelay(n) (__builtin_constant_p(n) ? \
((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
__ndelay(n))
#endif /* !__ASSEMBLY__ */
#endif /* defined(__SPARC64_DELAY_H) */
|
