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aa3febbe26
For arch specific codes, we use arch_xxx() to name the function. So, rename cpu_ticks/cpu_tickrate/set_hw_timeout/init_hw_timer to follow this convention. Then, use arch interface to set timeout value in update_physical_timer(). Furthermore, remove hw_timer.h and move its contents into common/ timer.h. Tracked-On: #8792 Signed-off-by: Yi Y Sun <yi.y.sun@intel.com> Acked-by: Wang, Yu1 <yu1.wang@intel.com>
67 lines
1.3 KiB
C
67 lines
1.3 KiB
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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#ifndef COMMON_TICKS_H
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#define COMMON_TICKS_H
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#include <types.h>
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#define TICKS_PER_MS us_to_ticks(1000U)
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/**
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* @brief Read current CPU tick count per arch.
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*
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* @remark CPU tick count is arch specific. On x86, this is the Time Stamp Counter (TSC) value of
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* the current logical CPU.
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*
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* @return CPU ticks
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*/
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uint64_t arch_cpu_ticks(void);
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/**
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* @brief Read current CPU tick count.
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*
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* @return CPU ticks
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*/
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uint64_t cpu_ticks(void);
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/**
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* @brief Get CPU tick frequency in KHz.
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*
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* @remark CPU tick rate is arch specific. On x86, this is the Time Stamp Counter (TSC) frequency
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* of the current logical CPU.
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*
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* @return CPU frequency (KHz)
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*/
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uint32_t arch_cpu_tickrate(void);
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/**
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* @brief Convert micro seconds to CPU ticks.
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*
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* @param[in] us micro seconds to convert
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* @return CPU ticks
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*/
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uint64_t us_to_ticks(uint32_t us);
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/**
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* @brief Convert CPU cycles to micro seconds.
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*
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* @param[in] ticks CPU ticks to convert
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* @return microsecond
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*/
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uint64_t ticks_to_us(uint64_t ticks);
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/**
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* @brief Convert CPU cycles to milli seconds.
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*
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* @param[in] ticks CPU ticks to convert
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* @return millisecond
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*/
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uint64_t ticks_to_ms(uint64_t ticks);
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#endif /* COMMON_TICKS_H */
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