123456789101112131415161718192021222324252627 |
- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef __PERF_TSC_H
- #define __PERF_TSC_H
- #include <linux/types.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);
- #endif // __PERF_TSC_H
|