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31 lines
678 B
31 lines
678 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __PERF_TSC_H |
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#define __PERF_TSC_H |
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#include <linux/types.h> |
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#include "event.h" |
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struct perf_tsc_conversion { |
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u16 time_shift; |
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u32 time_mult; |
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u64 time_zero; |
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u64 time_cycles; |
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u64 time_mask; |
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bool cap_user_time_zero; |
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bool cap_user_time_short; |
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}; |
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struct perf_event_mmap_page; |
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int perf_read_tsc_conversion(const struct perf_event_mmap_page *pc, |
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struct perf_tsc_conversion *tc); |
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u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc); |
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u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc); |
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u64 rdtsc(void); |
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size_t perf_event__fprintf_time_conv(union perf_event *event, FILE *fp); |
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#endif // __PERF_TSC_H
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