Release 4.11 arch/x86/kernel/trace_clock.c

/*
 * X86 trace clocks
 */
#include <asm/trace_clock.h>
#include <asm/barrier.h>
#include <asm/msr.h>

/*
 * trace_clock_x86_tsc(): A clock that is just the cycle counter.
 *
 * Unlike the other clocks, this is not in nanoseconds.
 */


u64 notrace trace_clock_x86_tsc(void)
{
	return rdtsc_ordered();
}
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Directory: arch/x86/kernel

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