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gpu: drop global barriers for PM4 flush events and releases, ordering buffer-writing draws like dispatches

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This commit is contained in:
nmzik
2026-10-21 01:33:10 +02:00
parent ea1b032c59
commit 70668fbd98
6 changed files with 31 additions and 64 deletions
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src/graphics/guest_gpu/graphicsRun.cpp
+5 -27
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@@ -607,7 +607,6 @@ bool GuestGpu::Process(Submission& submission) {
case SubmissionType::SuspendPoint:
// Age caches at the frame boundary, not once per command list.
m_renderer.RunGarbageCollector();
cp.EmitGlobalBarrier();
m_renderer.GetCommandScheduler().DeferPriorityOperation(
[ready = m_suspend_point_ready] { ready->release(); });
cp.BufferFlush();
@@ -1222,22 +1221,6 @@ void CommandProcessor::WriteAtEndOfPipe64(uint32_t cache_policy, uint32_t event_
interrupt_context_id);
}
void CommandProcessor::EmitGlobalBarrier() {
Common::LockGuard lock(m_renderer.GetMutex());
vk::MemoryBarrier2 barrier {};
barrier.srcStageMask = vk::PipelineStageFlagBits2::eAllCommands;
barrier.srcAccessMask = vk::AccessFlagBits2::eMemoryWrite;
barrier.dstStageMask = vk::PipelineStageFlagBits2::eAllCommands;
barrier.dstAccessMask = vk::AccessFlagBits2::eMemoryRead | vk::AccessFlagBits2::eMemoryWrite;
vk::DependencyInfo dependency {};
dependency.memoryBarrierCount = 1;
dependency.pMemoryBarriers = &barrier;
GetScheduler().EndRendering();
CurrentBuffer().Handle().pipelineBarrier2(dependency);
}
void CommandProcessor::TriggerEopEventAtEndOfPipe(uint32_t interrupt_context_id) {
(void)CurrentBuffer().Handle();
GetScheduler().DeferPriorityOperation(
@@ -1257,21 +1240,17 @@ void CommandProcessor::TriggerEvent(uint32_t event_type, uint32_t event_index,
}
const auto valid_cache_event_index = event_index == 0x00000000 || event_index == 0x00000007;
// Partial flushes and cache writebacks only order GPU work, which the renderer's resource
// barriers already order.
switch (event_type) {
// CsPartialFlush, GsPartialFlush, PsPartialFlush.
case 0x00000007:
case 0x0000000f:
case 0x00000010: EmitGlobalBarrier(); break;
// CbDbDataWritebackInvalidate, CbDataWritebackInvalidate.
case 0x00000010: break;
// CbDbDataWritebackInvalidate, CbDataWritebackInvalidate, DbDataWritebackInvalidate,
// DbMetadataWritebackInvalidate, CbMetadataWritebackInvalidate.
case 0x00000016:
case 0x00000031:
if (!valid_cache_event_index) {
EXIT("unknown event type: 0x%08" PRIx32 ", 0x%08" PRIx32 "\n", event_type,
event_index);
}
EmitGlobalBarrier();
break;
// DbDataWritebackInvalidate, DbMetadataWritebackInvalidate, CbMetadataWritebackInvalidate.
case 0x0000002a:
case 0x0000002c:
case 0x0000002e:
@@ -1279,7 +1258,6 @@ void CommandProcessor::TriggerEvent(uint32_t event_type, uint32_t event_index,
EXIT("unknown event type: 0x%08" PRIx32 ", 0x%08" PRIx32 "\n", event_type,
event_index);
}
EmitGlobalBarrier();
break;
case 0x0000000d:
case 0x0000000e: