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perf: add struct hw_perf_event

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Change-Id: I0938e2b18064ad805a9edb6e15d26cf438bf0a59
This commit is contained in:
TOIDA,Suguru
2019-11-19 09:31:49 +09:00
parent 767792808a
commit 86c45484e3
5 changed files with 81 additions and 0 deletions
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26
lib/include/mc_perf_event.h
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@ -257,6 +257,31 @@ struct hw_perf_event_extra {
int idx;
};
struct hw_perf_event {
/*
* The last observed hardware counter value, updated with a
* local64_cmpxchg() such that pmu::read() can be called nested.
*/
ihk_atomic64_t prev_count;
/*
* The period to start the next sample with.
*/
uint64_t sample_period;
/*
* The period we started this sample with.
*/
uint64_t last_period;
/*
* However much is left of the current period; note that this is
* a full 64bit value and allows for generation of periods longer
* than hardware might allow.
*/
ihk_atomic64_t period_left;
};
/**
* enum perf_event_state - the states of an event:
*/
@ -291,6 +316,7 @@ struct mc_perf_event {
long long base_system_tsc;
long long stopped_system_tsc;
long long system_accum_count;
struct hw_perf_event hw;
};
struct perf_event_mmap_page {