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[common] kvmfr: report cadence hold and lead timing

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This commit is contained in:
Geoffrey McRae
2026-08-06 17:14:29 +10:00
parent 1b78384da3
commit 0b744d2286
7 changed files with 59 additions and 20 deletions
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10
idd/LGIdd/CIndirectDeviceContext.cpp
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@@ -1973,6 +1973,8 @@ CIndirectDeviceContext::PreparedFrameBuffer CIndirectDeviceContext::PrepareFrame
fi->postProcessTime = 0;
fi->copyTime = 0;
fi->readyTime = 0;
fi->holdTime = 0;
fi->readyLeadTime = 0;
fi->timingSerial = 0;
fi->timingFlags = 0;
fi->scheduleGeneration = 0;
@@ -2343,8 +2345,8 @@ void CIndirectDeviceContext::CompleteFrameBuffer(
void CIndirectDeviceContext::SetFrameTiming(unsigned frameIndex,
uint64_t captureTime, uint64_t postProcessTime, uint64_t copyTime,
uint64_t readyTime, const CFrameScheduler::Schedule& schedule,
uint64_t completedAt)
uint64_t readyTime, uint64_t holdTime,
const CFrameScheduler::Schedule& schedule, uint64_t completedAt)
{
if (frameIndex >= LGMP_Q_FRAME_BUFFER_LEN)
return;
@@ -2357,6 +2359,10 @@ void CIndirectDeviceContext::SetFrameTiming(unsigned frameIndex,
frame->postProcessTime = postProcessTime;
frame->copyTime = copyTime;
frame->readyTime = readyTime;
frame->holdTime = holdTime;
frame->readyLeadTime = phaseValid &&
schedule.deadline >= completedAt ?
schedule.deadline - completedAt : 0;
frame->timingFlags = phaseValid ?
KVMFR_FRAME_TIMING_PHASE_VALID : 0;
frame->timingSerial = frame->frameSerial;

3
idd/LGIdd/CIndirectDeviceContext.h
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@@ -299,7 +299,8 @@ public:
void CompleteFrameBuffer(unsigned frameIndex, bool succeeded);
void SetFrameTiming(unsigned frameIndex, uint64_t captureTime,
uint64_t postProcessTime, uint64_t copyTime, uint64_t readyTime,
const CFrameScheduler::Schedule& schedule, uint64_t completedAt);
uint64_t holdTime, const CFrameScheduler::Schedule& schedule,
uint64_t completedAt);
void WriteFrameBuffer(unsigned frameIndex, void* src, size_t offset, size_t len, bool setWritePos) const;
void FinalizeFrameBuffer(unsigned frameIndex) const;

17
idd/LGIdd/CSwapChainProcessor.cpp
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@@ -766,12 +766,21 @@ void CSwapChainProcessor::CompletionFunction(
// discarded.
sc->m_devContext->FinalizeFrameBuffer(fbRes->GetFrameIndex());
const uint64_t publishedAt = CFrameScheduler::Nanotime();
const uint64_t elapsed = publishedAt - postProcessStart;
const uint64_t measured = postProcessTime + copyTime;
const uint64_t readyTime = elapsed > measured ? elapsed - measured : 0;
const uint64_t prepareElapsed = prepareReady >= postProcessStart ?
prepareReady - postProcessStart : 0;
const uint64_t prepareMeasured = postProcessTime + prepareCopyTime;
const uint64_t prepareReadyTime = prepareElapsed > prepareMeasured ?
prepareElapsed - prepareMeasured : 0;
const uint64_t publishElapsed = publishedAt >= publishStart ?
publishedAt - publishStart : 0;
const uint64_t publishReadyTime = publishElapsed > publishCopyTime ?
publishElapsed - publishCopyTime : 0;
const uint64_t readyTime = prepareReadyTime + publishReadyTime;
const uint64_t holdTime = publishStart >= prepareReady ?
publishStart - prepareReady : 0;
sc->m_devContext->SetFrameTiming(fbRes->GetFrameIndex(),
fbRes->GetCaptureTime(), postProcessTime, copyTime, readyTime,
fbRes->GetCaptureTime(), postProcessTime, copyTime, readyTime, holdTime,
fbRes->GetSchedule(), publishedAt);
sc->m_devContext->TryRecordFrameTiming(
publishedAt - publishStart);