blob: 8db4da4064cde345ab9550e1297eb3ee52b172a7 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * linux/include/asm-ppc/timex.h
3 *
4 * PPC64 architecture timex specifications
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11#ifndef _ASMPPC64_TIMEX_H
12#define _ASMPPC64_TIMEX_H
13
14#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
15
16typedef unsigned long cycles_t;
17
18static inline cycles_t get_cycles(void)
19{
20 cycles_t ret;
21
22 __asm__ __volatile__("mftb %0" : "=r" (ret) : );
23 return ret;
24}
25
26#endif