release/src-rt-6.x.4708/linux/linux-2.6.36/arch/mn10300/include/asm/timex.h

   1 /* MN10300 Architecture time management specifications
   2  *
   3  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
   4  * Written by David Howells (dhowells@redhat.com)
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public Licence
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the Licence, or (at your option) any later version.
  10  */
  11 #ifndef _ASM_TIMEX_H
  12 #define _ASM_TIMEX_H
  13
  14 #include <asm/hardirq.h>
  15 #include <unit/timex.h>
  16
  17 #define TICK_SIZE (tick_nsec / 1000)
  18
  19 #define CLOCK_TICK_RATE 1193180 /* Underlying HZ - this should probably be set
  20                                  * to something appropriate, but what? */
  21
  22 extern cycles_t cacheflush_time;
  23
  24 #ifdef __KERNEL__
  25
  26 static inline cycles_t get_cycles(void)
  27 {
  28         return read_timestamp_counter();
  29 }
  30
  31 #endif /* __KERNEL__ */
  32
  33 #endif /* _ASM_TIMEX_H */