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/* SPDX-License-Identifier: GPL-2.0 */
/*
* linux/include/asm-alpha/timex.h
*
* ALPHA architecture timex specifications
*/
#ifndef _ASMALPHA_TIMEX_H
#define _ASMALPHA_TIMEX_H
/* With only one or two oddballs, we use the RTC as the ticker, selecting
the 32.768kHz reference clock, which nicely divides down to our HZ. */
#define CLOCK_TICK_RATE 32768
/*
* 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;
}
#endif
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