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5a2b89b0a4
Generalize and split basic cpu cycle/tick routines from x86/timer: - Instead of rdstc(), use cpu_ticks() in generic code. - Instead of get_tsc_khz(), use cpu_tickrate() in generic code. - Include "common/ticks.h" instead of "x86/timer.h" in generic code. - CYCLES_PER_MS is renamed to TICKS_PER_MS. The x86 specific API rdstc() and get_tsc_khz(), as well as TSC_PER_MS are still available in arch/x86/tsc.h but only for x86 specific usage. Tracked-On: #5920 Signed-off-by: Rong Liu <rong2.liu@intel.com> Signed-off-by: Yi Liang <yi.liang@intel.com>
32 lines
550 B
C
32 lines
550 B
C
/*
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* Copyright (C) 2021 Intel Corporation.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <common/ticks.h>
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/* cpu_ticks() and cpu_tickrate() are provided in arch specific modules */
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uint64_t us_to_ticks(uint32_t us)
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{
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return (((uint64_t)us * (uint64_t)cpu_tickrate()) / 1000UL);
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}
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uint64_t ticks_to_us(uint64_t ticks)
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{
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uint64_t us = 0UL;
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uint64_t khz = cpu_tickrate();
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if (khz != 0U) {
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us = (ticks * 1000UL) / (uint64_t)khz;
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}
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return us;
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}
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uint64_t ticks_to_ms(uint64_t ticks)
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{
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return ticks / (uint64_t)cpu_tickrate();
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}
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