#ifndef _ASM_POWERPC_DELAY_H
  #define _ASM_POWERPC_DELAY_H

  #ifdef __KERNEL__

  
  /*
   * Copyright 1996, Paul Mackerras.
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * as published by the Free Software Foundation; either version
   * 2 of the License, or (at your option) any later version.
   *
   * PPC64 Support added by Dave Engebretsen, Todd Inglett, Mike Corrigan,
   * Anton Blanchard.
   */

  extern void __delay(unsigned long loops);
  extern void udelay(unsigned long usecs);

  /*
   * On shared processor machines the generic implementation of mdelay can
   * result in large errors. While each iteration of the loop inside mdelay
   * is supposed to take 1ms, the hypervisor could sleep our partition for
   * longer (eg 10ms). With the right timing these errors can add up.
   *
   * Since there is no 32bit overflow issue on 64bit kernels, just call
   * udelay directly.
   */
  #ifdef CONFIG_PPC64
  #define mdelay(n)	udelay((n) * 1000)
  #endif

  #endif /* __KERNEL__ */

  #endif /* _ASM_POWERPC_DELAY_H */