refactor(graphics)

src/graphics/host_gpu/renderer/renderContext.cpp

@@ -14,7 +14,8 @@ RenderContext::RenderContext(GraphicContext& graphics)
     : m_graphics(graphics), m_render_executor(*this), m_command_scheduler(*this, graphics),
       m_descriptor_heap(graphics, m_command_scheduler.GetMasterSemaphore()),
       m_pipeline_cache(graphics), m_sampler_cache(graphics),
-      m_gpu_resources(graphics, m_command_scheduler) {
+      m_buffer_cache(graphics, m_command_scheduler, m_page_manager, m_texture_cache),
+      m_texture_cache(graphics, m_command_scheduler, m_page_manager, m_buffer_cache) {
 	EXIT_NOT_IMPLEMENTED(!Common::Thread::IsMainThread());
 }
 
@@ -27,12 +28,10 @@ void RenderContext::InitializeGpu(VideoOut::VideoOutDriver* video_out) {
 	EXIT_IF(m_gpu != nullptr);
 	m_video_out = video_out;
 	m_gpu       = std::make_unique<GuestGpu>(*this);
-	m_gpu_resources.SetGpu(m_gpu.get());
 }
 
 void RenderContext::ShutdownGpu() {
 	if (m_gpu != nullptr) {
-		m_gpu_resources.SetGpu(nullptr);
 		m_gpu->Shutdown();
 		m_gpu.reset();
 	}
@@ -55,6 +54,88 @@ VideoOut::VideoOutDriver& RenderContext::GetVideoOut() const {
 	return *m_video_out;
 }
 
+bool RenderContext::HandleFault(PageFaultAccess access, uint64_t fault_vaddr) noexcept {
+	// The host reports the faulting byte, not the instruction's access width. Both caches
+	// resolve its page; guessing a width can cross the end of a valid guest mapping.
+	constexpr uint64_t fault_size = 1;
+	if (!IsMapped(fault_vaddr, fault_size)) {
+		return false;
+	}
+	if (access == PageFaultAccess::Write) {
+		m_buffer_cache.InvalidateMemory(fault_vaddr, fault_size);
+		m_texture_cache.InvalidateMemory(fault_vaddr, fault_size);
+	} else {
+		m_buffer_cache.ReadMemory(fault_vaddr, fault_size);
+	}
+	return true;
+}
+
+bool RenderContext::InvalidateMemory(uint64_t vaddr, uint64_t size) {
+	if (!IsMapped(vaddr, size)) {
+		return false;
+	}
+	m_buffer_cache.InvalidateMemory(vaddr, size);
+	m_texture_cache.InvalidateMemory(vaddr, size);
+	return true;
+}
+
+bool RenderContext::IsMapped(uint64_t vaddr, uint64_t size) const noexcept {
+	if (!GuestRange {vaddr, size}.Valid()) {
+		return false;
+	}
+	std::shared_lock lock(m_mapped_ranges_mutex);
+	return m_mapped_ranges.Contains(vaddr, size);
+}
+
+void RenderContext::MapMemory(uint64_t vaddr, uint64_t size) {
+	std::lock_guard lock(m_mapped_ranges_mutex);
+	m_mapped_ranges.Add(vaddr, size);
+}
+
+void RenderContext::UnmapMemory(uint64_t vaddr, uint64_t size) {
+	if (CommandScheduler::InDeferredOperation()) {
+		EXIT("unsupported memory unmap from an asynchronous GPU completion, "
+		     "addr=0x%016" PRIx64 " size=0x%016" PRIx64 "\n",
+		     vaddr, size);
+	}
+	const auto unmap = [this, vaddr, size] {
+		if (m_command_scheduler.Active()) {
+			const auto tick = m_command_scheduler.CurrentTick();
+			m_command_scheduler.Finish();
+			m_command_scheduler.WaitPriorityOperations(tick);
+		}
+		m_buffer_cache.InvalidateMemory(vaddr, size);
+		m_texture_cache.UnmapMemory(vaddr, size);
+		std::lock_guard lock(m_mapped_ranges_mutex);
+		m_mapped_ranges.Subtract(vaddr, size);
+	};
+	// Shutdown still owns the GPU while queued rendering drains, but its command lane no
+	// longer accepts external work. Use the guest GPU's state for the teardown route.
+	if (m_gpu == nullptr || m_gpu->IsStopping()) {
+		unmap();
+		return;
+	}
+	m_gpu->SendCommandSync(unmap);
+}
+
+void RenderContext::PrepareBda() {
+	std::shared_lock lock(m_mapped_ranges_mutex);
+	m_mapped_ranges.ForEach([this](uint64_t start, uint64_t end) {
+		m_buffer_cache.SynchronizeBuffersInRange(start, end - start);
+	});
+	m_fault_process_pending = true;
+}
+
+void RenderContext::RunGarbageCollector() {
+	if (m_fault_process_pending) {
+		m_fault_process_pending = false;
+		m_buffer_cache.ProcessFaultBuffer();
+	}
+	m_texture_cache.ProcessDownloadImages();
+	m_texture_cache.RunGarbageCollector();
+	m_buffer_cache.RunGarbageCollector();
+}
+
 void RenderContext::AddInterruptEq(LibKernel::EventQueue::KernelEqueue eq, int event_id) {
 	Common::LockGuard lock(m_interrupt_mutex);