File: delay.h

package info (click to toggle)
kernel-source-2.2.1 2.2.1-1
  • links: PTS
  • area: main
  • in suites: slink
  • size: 61,788 kB
  • ctags: 188,316
  • sloc: ansic: 1,114,164; asm: 49,922; makefile: 8,185; sh: 1,745; perl: 856; tcl: 409; lisp: 218; cpp: 186; awk: 133; sed: 72
file content (25 lines) | stat: -rw-r--r-- 601 bytes parent folder | download | duplicates (4) 
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
 
/* $Id: delay.h,v 1.10 1997/11/07 18:24:30 mj 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) :
			     "cc");
}

/* This is too messy with inline asm on the Sparc. */
extern void udelay(unsigned long usecs);

#endif /* defined(__SPARC_DELAY_H) */