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Linux/arch/parisc/include/asm/delay.h

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  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) : "" (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 */
 24 

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