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[GPU] SharedMemory: common sparse memory allocation

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Triang3l
2020-10-06 21:32:44 +03:00
parent 75bf2d3c7d
commit 19121130a3
5 changed files with 287 additions and 113 deletions
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15
src/xenia/gpu/d3d12/d3d12_shared_memory.h
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@@ -87,33 +87,24 @@ class D3D12SharedMemory : public SharedMemory {
void InitializeTraceCompleteDownloads();
protected:
bool EnsureHostGpuMemoryAllocated(uint32_t start, uint32_t length) override;
bool AllocateSparseHostGpuMemoryRange(uint32_t offset_allocations,
uint32_t length_allocations) override;
bool UploadRanges(const std::vector<std::pair<uint32_t, uint32_t>>&
upload_page_ranges) override;
private:
bool AreTiledResourcesUsed() const;
D3D12CommandProcessor& command_processor_;
TraceWriter& trace_writer_;
// The 512 MB tiled buffer.
ID3D12Resource* buffer_ = nullptr;
D3D12_GPU_VIRTUAL_ADDRESS buffer_gpu_address_ = 0;
std::vector<ID3D12Heap*> buffer_tiled_heaps_;
D3D12_RESOURCE_STATES buffer_state_ = D3D12_RESOURCE_STATE_COPY_DEST;
bool buffer_uav_writes_commit_needed_ = false;
void CommitUAVWritesAndTransitionBuffer(D3D12_RESOURCE_STATES new_state);
static_assert(D3D12_TILED_RESOURCE_TILE_SIZE_IN_BYTES == (1 << 16));
static constexpr uint32_t kHeapSizeLog2 =
std::max(kOptimalAllocationLog2, uint32_t(16));
static constexpr uint32_t kHeapSize = 1 << kHeapSizeLog2;
// Resident portions of the tiled buffer.
ID3D12Heap* heaps_[kBufferSize >> kHeapSizeLog2] = {};
// Number of the heaps currently resident, for profiling.
uint32_t heap_count_ = 0;
// Non-shader-visible buffer descriptor heap for faster binding (via copying
// rather than creation).
enum class BufferDescriptorIndex : uint32_t {