mirror of https://gitee.com/openkylin/linux.git
24 lines
628 B
C
24 lines
628 B
C
#ifndef _LINUX_TRACE_CLOCK_H
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#define _LINUX_TRACE_CLOCK_H
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/*
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* 3 trace clock variants, with differing scalability/precision
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* tradeoffs:
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*
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* - local: CPU-local trace clock
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* - medium: scalable global clock with some jitter
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* - global: globally monotonic, serialized clock
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*/
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#include <linux/compiler.h>
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#include <linux/types.h>
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#include <asm/trace_clock.h>
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extern u64 notrace trace_clock_local(void);
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extern u64 notrace trace_clock(void);
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extern u64 notrace trace_clock_jiffies(void);
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extern u64 notrace trace_clock_global(void);
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extern u64 notrace trace_clock_counter(void);
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#endif /* _LINUX_TRACE_CLOCK_H */
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