1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <linux/types.h>
9 struct perf_tsc_conversion {
16 bool cap_user_time_zero;
17 bool cap_user_time_short;
20 struct perf_event_mmap_page;
22 int perf_read_tsc_conversion(const struct perf_event_mmap_page *pc,
23 struct perf_tsc_conversion *tc);
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);
28 double arch_get_tsc_freq(void);
30 size_t perf_event__fprintf_time_conv(union perf_event *event, FILE *fp);
32 #endif // __PERF_TSC_H