blob: 71e1154a02b9079ebb96efa41b5946a00d54fbd0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
/* $Id: delay.h,v 1.8 1996/01/28 02:09:21 davem Exp $
* delay.h: Linux delay routines on the Sparc.
*
* Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu).
*/
#ifndef __SPARC_DELAY_H
#define __SPARC_DELAY_H
extern unsigned long loops_per_sec;
extern __inline__ void __delay(unsigned long loops)
{
__asm__ __volatile__("cmp %0, 0\n\t"
"1: bne 1b\n\t"
"subcc %0, 1, %0\n" :
"=&r" (loops) :
"0" (loops));
}
/* This is too messy with inline asm on the Sparc. */
extern void udelay(unsigned long usecs);
/* calibrate_delay() wants this... */
#define muldiv(a, b, c) (((a)*(b))/(c))
#endif /* defined(__SPARC_DELAY_H) */
|
