2 * linux/include/asm-alpha/timex.h
4 * ALPHA architecture timex specifications
6 #ifndef _ASMALPHA_TIMEX_H
7 #define _ASMALPHA_TIMEX_H
9 #define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
12 * Standard way to access the cycle counter.
13 * Currently only used on SMP for scheduling.
15 * Only the low 32 bits are available as a continuously counting entity.
16 * But this only means we'll force a reschedule every 8 seconds or so,
17 * which isn't an evil thing.
20 typedef unsigned int cycles_t;
22 static inline cycles_t get_cycles (void)
25 __asm__ __volatile__ ("rpcc %0" : "=r"(ret));
29 #define vxtime_lock() do {} while (0)
30 #define vxtime_unlock() do {} while (0)