delay.h 494 B

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  1. #ifndef _ASM_PARISC_DELAY_H
  2. #define _ASM_PARISC_DELAY_H
  3. static __inline__ void __delay(unsigned long loops) {
  4. asm volatile(
  5. " .balignl 64,0x34000034\n"
  6. " addib,UV -1,%0,.\n"
  7. " nop\n"
  8. : "=r" (loops) : "0" (loops));
  9. }
  10. extern void __udelay(unsigned long usecs);
  11. extern void __udelay_bad(unsigned long usecs);
  12. static inline void udelay(unsigned long usecs)
  13. {
  14. if (__builtin_constant_p(usecs) && (usecs) > 20000)
  15. __udelay_bad(usecs);
  16. __udelay(usecs);
  17. }
  18. #endif /* _ASM_PARISC_DELAY_H */