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| File: [Development] / linux-2.4-xfs / include / asm-alpha / timex.h (download)
Revision 1.1, Wed Dec 31 00:54:49 2003 UTC (13 years, 9 months ago) by cattelan
Initial Import 2.4.24pre2 |
/*
* linux/include/asm-alpha/timex.h
*
* ALPHA architecture timex specifications
*/
#ifndef _ASMALPHA_TIMEX_H
#define _ASMALPHA_TIMEX_H
#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
/*
* Standard way to access the cycle counter.
* Currently only used on SMP for scheduling.
*
* Only the low 32 bits are available as a continuously counting entity.
* But this only means we'll force a reschedule every 8 seconds or so,
* which isn't an evil thing.
*/
typedef unsigned int cycles_t;
static inline cycles_t get_cycles (void)
{
cycles_t ret;
__asm__ __volatile__ ("rpcc %0" : "=r"(ret));
return ret;
}
#define vxtime_lock() do {} while (0)
#define vxtime_unlock() do {} while (0)
#endif