include/linux/sched_clock.h

   1 /*
   2  * sched_clock.h: support for extending counters to full 64-bit ns counter
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  */
   8 #ifndef LINUX_SCHED_CLOCK
   9 #define LINUX_SCHED_CLOCK
  10
  11 #ifdef CONFIG_GENERIC_SCHED_CLOCK
  12 extern void sched_clock_postinit(void);
  13
  14 extern void sched_clock_register(u64 (*read)(void), int bits,
  15                                  unsigned long rate);
  16 #else
  17 static inline void sched_clock_postinit(void) { }
  18
  19 static inline void sched_clock_register(u64 (*read)(void), int bits,
  20                                         unsigned long rate)
  21 {
  22         ;
  23 }
  24 #endif
  25
  26 #endif