[linux-2.6-block.git] / arch / x86 / kernel / trace_clock.c

// SPDX-License-Identifier: GPL-2.0
/*
 * 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();
}
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
8cbd9cc6 DS	2	/*
	3	* X86 trace clocks
	4	*/
	5	#include <asm/trace_clock.h>
	6	#include <asm/barrier.h>
	7	#include <asm/msr.h>
	8
	9	/*
	10	* trace_clock_x86_tsc(): A clock that is just the cycle counter.
	11	*
	12	* Unlike the other clocks, this is not in nanoseconds.
	13	*/
	14	u64 notrace trace_clock_x86_tsc(void)
	15	{
03b9730b	16	return rdtsc_ordered();
8cbd9cc6	17	}