| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 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 |