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/*
* linux/include/asm-ppc/timex.h
*
* PPC64 architecture timex specifications
*
* 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.
*/
#ifndef _ASMPPC64_TIMEX_H
#define _ASMPPC64_TIMEX_H
#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
#define CLOCK_TICK_FACTOR 20 /* Factor of both 1000000 and CLOCK_TICK_RATE */
#define FINETUNE ((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \
(1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \
<< (SHIFT_SCALE-SHIFT_HZ)) / HZ)
typedef unsigned long cycles_t;
static inline cycles_t get_cycles(void)
{
cycles_t ret;
__asm__ __volatile__("mftb %0" : "=r" (ret) : );
return ret;
}
#endif
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