root/include/asm-sparc/delay.h

/* */

INCLUDED FROM

DEFINITIONS

1. __delay

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

/* */