/* 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; }; 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); struct perf_event_mmap_page; struct perf_tool; struct machine; int perf_event__synth_time_conv(const struct perf_event_mmap_page *pc, struct perf_tool *tool, perf_event__handler_t process, struct machine *machine); #endif