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(wall, native)_clock: Add GetGPUTick

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Allows us to directly calculate the GPU tick without double conversion to and from the host clock tick.
This commit is contained in:
Morph 2023-05-28 17:45:47 -04:00
parent 9dcc7bde8b
commit 907507886d
7 changed files with 47 additions and 12 deletions
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7
src/common/x64/native_clock.cpp
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@ -12,7 +12,8 @@ NativeClock::NativeClock(u64 rdtsc_frequency_)
ns_rdtsc_factor{GetFixedPoint64Factor(NsRatio::den, rdtsc_frequency)},
us_rdtsc_factor{GetFixedPoint64Factor(UsRatio::den, rdtsc_frequency)},
ms_rdtsc_factor{GetFixedPoint64Factor(MsRatio::den, rdtsc_frequency)},
cntpct_rdtsc_factor{GetFixedPoint64Factor(CNTFRQ, rdtsc_frequency)} {}
cntpct_rdtsc_factor{GetFixedPoint64Factor(CNTFRQ, rdtsc_frequency)},
gputick_rdtsc_factor{GetFixedPoint64Factor(GPUTickFreq, rdtsc_frequency)} {}
std::chrono::nanoseconds NativeClock::GetTimeNS() const {
return std::chrono::nanoseconds{MultiplyHigh(GetHostTicksElapsed(), ns_rdtsc_factor)};
@ -30,6 +31,10 @@ u64 NativeClock::GetCNTPCT() const {
return MultiplyHigh(GetHostTicksElapsed(), cntpct_rdtsc_factor);
}
u64 NativeClock::GetGPUTick() const {
return MultiplyHigh(GetHostTicksElapsed(), gputick_rdtsc_factor);
}
u64 NativeClock::GetHostTicksNow() const {
return FencedRDTSC();
}

3
src/common/x64/native_clock.h
View file

@ -19,6 +19,8 @@ public:
u64 GetCNTPCT() const override;
u64 GetGPUTick() const override;
u64 GetHostTicksNow() const override;
u64 GetHostTicksElapsed() const override;
@ -33,6 +35,7 @@ private:
u64 us_rdtsc_factor;
u64 ms_rdtsc_factor;
u64 cntpct_rdtsc_factor;
u64 gputick_rdtsc_factor;
};
} // namespace Common::X64