2 * linux/include/asm-sparc64/timex.h
4 * sparc64 architecture timex specifications
6 #ifndef _ASMsparc64_TIMEX_H
7 #define _ASMsparc64_TIMEX_H
9 #define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
10 #define CLOCK_TICK_FACTOR 20 /* Factor of both 1000000 and CLOCK_TICK_RATE */
11 #define FINETUNE ((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \
12 (1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \
13 << (SHIFT_SCALE-SHIFT_HZ)) / HZ)
15 /* Getting on the cycle counter on sparc64. */
16 typedef unsigned long cycles_t;
17 #define get_cycles() \
19 __asm__ __volatile__("rd %%tick, %0" : "=r" (ret)); \
23 #define vxtime_lock() do {} while (0)
24 #define vxtime_unlock() do {} while (0)