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kernel/linux-rt-4.4.41/arch/cris/include/asm/delay.h 498 Bytes
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  #ifndef _CRIS_DELAY_H
  #define _CRIS_DELAY_H
  
  /*
   * Copyright (C) 1998-2002 Axis Communications AB
   *
   * Delay routines, using a pre-computed "loops_per_second" value.
   */
  
  #include <arch/delay.h>
  
  /* Use only for very small delays ( < 1 msec).  */
  
  extern unsigned long loops_per_usec; /* arch/cris/mm/init.c */
  
  /* May be defined by arch/delay.h. */
  #ifndef udelay
  static inline void udelay(unsigned long usecs)
  {
  	__delay(usecs * loops_per_usec);
  }
  #endif
  
  #endif /* defined(_CRIS_DELAY_H) */