| /* |
| * 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; |
| extern cycles_t cacheflush_time; |
| |
| static inline cycles_t get_cycles(void) |
| { |
| cycles_t ret; |
| |
| __asm__ __volatile__("mftb %0" : "=r" (ret) : ); |
| return ret; |
| } |
| |
| #define vxtime_lock() do {} while (0) |
| #define vxtime_unlock() do {} while (0) |
| |
| #endif |
