tsc.h (678B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef __PERF_TSC_H 3#define __PERF_TSC_H 4 5#include <linux/types.h> 6 7#include "event.h" 8 9struct perf_tsc_conversion { 10 u16 time_shift; 11 u32 time_mult; 12 u64 time_zero; 13 u64 time_cycles; 14 u64 time_mask; 15 16 bool cap_user_time_zero; 17 bool cap_user_time_short; 18}; 19 20struct perf_event_mmap_page; 21 22int perf_read_tsc_conversion(const struct perf_event_mmap_page *pc, 23 struct perf_tsc_conversion *tc); 24 25u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc); 26u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc); 27u64 rdtsc(void); 28 29size_t perf_event__fprintf_time_conv(union perf_event *event, FILE *fp); 30 31#endif // __PERF_TSC_H