mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-04-30 12:44:07 +00:00
400d31916a
Replace rdstc() and get_tsc_khz() with their architectural agnostic counterparts cpu_ticks() and cpu_tickrate(). Tracked-On: #5920 Signed-off-by: Yi Liang <yi.liang@intel.com>
58 lines
1.1 KiB
C
58 lines
1.1 KiB
C
/*
|
|
* Copyright (C) 2021 Intel Corporation.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#ifndef COMMON_TICKS_H
|
|
#define COMMON_TICKS_H
|
|
|
|
#include <types.h>
|
|
|
|
#define TICKS_PER_MS us_to_ticks(1000U)
|
|
|
|
/**
|
|
* @brief Read current CPU tick count.
|
|
*
|
|
* @remark On x86, this is the Time Stamp Counter (TSC) value of the current logical CPU.
|
|
*
|
|
* @return CPU ticks
|
|
*/
|
|
uint64_t cpu_ticks(void);
|
|
|
|
/**
|
|
* @brief Get CPU tick frequency in KHz.
|
|
*
|
|
* @remark On x86, this is the Time Stamp Counter (TSC) frequency of the current logical CPU.
|
|
*
|
|
* @return CPU frequency (KHz)
|
|
*/
|
|
uint32_t cpu_tickrate(void);
|
|
|
|
/**
|
|
* @brief Convert micro seconds to CPU ticks.
|
|
*
|
|
* @param[in] us micro seconds to convert
|
|
* @return CPU ticks
|
|
*/
|
|
uint64_t us_to_ticks(uint32_t us);
|
|
|
|
/**
|
|
* @brief Convert CPU cycles to micro seconds.
|
|
*
|
|
* @param[in] ticks CPU ticks to convert
|
|
* @return microsecond
|
|
*/
|
|
uint64_t ticks_to_us(uint64_t ticks);
|
|
|
|
/**
|
|
* @brief Convert CPU cycles to milli seconds.
|
|
*
|
|
* @param[in] ticks CPU ticks to convert
|
|
* @return millisecond
|
|
*/
|
|
uint64_t ticks_to_ms(uint64_t ticks);
|
|
|
|
#endif /* COMMON_TICKS_H */
|
|
|