[linux-2.6-block.git] / tools / perf / util / tsc.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PERF_TSC_H
#define __PERF_TSC_H

#include <linux/types.h>

#include "event.h"

struct perf_tsc_conversion {
	u16 time_shift;
	u32 time_mult;
	u64 time_zero;
	u64 time_cycles;
	u64 time_mask;

	bool cap_user_time_zero;
	bool cap_user_time_short;
};

struct perf_event_mmap_page;

int perf_read_tsc_conversion(const struct perf_event_mmap_page *pc,
			     struct perf_tsc_conversion *tc);

u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc);
u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc);
u64 rdtsc(void);
double arch_get_tsc_freq(void);

size_t perf_event__fprintf_time_conv(union perf_event *event, FILE *fp);

#endif // __PERF_TSC_H
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
0b437860 AH	2	#ifndef __PERF_TSC_H
	3	#define __PERF_TSC_H
	4
	5	#include <linux/types.h>
	6
81e70d7e LY	7	#include "event.h"
81e70d7e LY	8
2a28e230 AH	9	struct perf_tsc_conversion {
	10	u16 time_shift;
	11	u32 time_mult;
	12	u64 time_zero;
78a93d4c LY	13	u64 time_cycles;
	14	u64 time_mask;
	15
	16	bool cap_user_time_zero;
	17	bool cap_user_time_short;
2a28e230	18	};
ea49e01c	19
2a28e230 AH	20	struct perf_event_mmap_page;
	21
	22	int perf_read_tsc_conversion(const struct perf_event_mmap_page *pc,
	23	struct perf_tsc_conversion *tc);
0b437860 AH	24
	25	u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc);
	26	u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc);
a6a69db4	27	u64 rdtsc(void);
bc2373a5	28	double arch_get_tsc_freq(void);
0b437860	29
81e70d7e LY	30	size_t perf_event__fprintf_time_conv(union perf_event event, FILE fp);
81e70d7e LY	31
ea49e01c	32	#endif // __PERF_TSC_H