mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-05-08 16:36:58 +00:00
eb8bcb06b3
Modified the copyright year range in code, and corrected "int32_tel" into "Intel" in two "hypervisor/include/debug/profiling.h" and "hypervisor/include/debug/profiling_internal.h". Tracked-On: #7559 Signed-off-by: Ziheng Li <ziheng.li@intel.com>
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
/*
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* Copyright (C) 2018-2022 Intel Corporation.
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef _TIMER_H_
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#define _TIMER_H_
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#include <time.h> // for struct itimerspec
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#include <sys/param.h>
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struct acrn_timer {
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int32_t fd;
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int32_t clockid;
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struct mevent *mevp;
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void (*callback)(void *, uint64_t);
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void *callback_param;
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};
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int32_t
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acrn_timer_init(struct acrn_timer *timer, void (*cb)(void *, uint64_t), void *param);
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void
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acrn_timer_deinit(struct acrn_timer *timer);
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int32_t
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acrn_timer_settime(struct acrn_timer *timer, const struct itimerspec *new_value);
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int32_t
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acrn_timer_settime_abs(struct acrn_timer *timer,
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const struct itimerspec *new_value);
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int32_t
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acrn_timer_gettime(struct acrn_timer *timer, struct itimerspec *cur_value);
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#define NS_PER_SEC (1000000000ULL)
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static inline uint64_t
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ts_to_ticks(const uint32_t freq, const struct timespec *const ts)
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{
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uint64_t tv_sec_ticks, tv_nsec_ticks;
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tv_sec_ticks = ts->tv_sec * freq;
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tv_nsec_ticks = (ts->tv_nsec * freq) / NS_PER_SEC;
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return tv_sec_ticks + tv_nsec_ticks;
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}
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static inline void
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ticks_to_ts(const uint32_t freq, const uint64_t ticks,
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struct timespec *const ts)
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{
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uint64_t ns;
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ns = howmany(ticks * NS_PER_SEC, freq);
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ts->tv_sec = ns / NS_PER_SEC;
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ts->tv_nsec = ns % NS_PER_SEC;
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}
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#endif /* _VTIMER_ */
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