arch/parisc/include/asm/delay.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_PARISC_DELAY_H
   3 #define _ASM_PARISC_DELAY_H
   4
   5 static __inline__ void __delay(unsigned long loops) {
   6         asm volatile(
   7         "       .balignl        64,0x34000034\n"
   8         "       addib,UV -1,%0,.\n"
   9         "       nop\n"
  10                 : "=r" (loops) : "0" (loops));
  11 }
  12
  13 extern void __udelay(unsigned long usecs);
  14 extern void __udelay_bad(unsigned long usecs);
  15
  16 static inline void udelay(unsigned long usecs)
  17 {
  18         if (__builtin_constant_p(usecs) && (usecs) > 20000)
  19                 __udelay_bad(usecs);
  20         __udelay(usecs);
  21 }
  22
  23 #endif /* _ASM_PARISC_DELAY_H */