/* 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