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1da177e4 LT |
1 | /* |
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 | ||
16 | typedef unsigned long cycles_t; | |
17 | ||
18 | static 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 |