arch/um/include/asm/delay.h

   1 #ifndef __UM_DELAY_H
   2 #define __UM_DELAY_H
   3
   4 /* Undefined on purpose */
   5 extern void __bad_udelay(void);
   6 extern void __bad_ndelay(void);
   7
   8 extern void __udelay(unsigned long usecs);
   9 extern void __ndelay(unsigned long usecs);
  10 extern void __delay(unsigned long loops);
  11
  12 #define udelay(n) ((__builtin_constant_p(n) && (n) > 20000) ? \
  13         __bad_udelay() : __udelay(n))
  14
  15 #define ndelay(n) ((__builtin_constant_p(n) && (n) > 20000) ? \
  16         __bad_ndelay() : __ndelay(n))
  17
  18 #endif