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818001d32e
Bug: dawn:1275 Change-Id: Ic60a00107a015bc677ff929c492f1085ffc38482 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/79083 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Ben Clayton <bclayton@chromium.org>
72 lines
3.2 KiB
C++
72 lines
3.2 KiB
C++
// Copyright 2019 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "dawn/native/d3d12/HeapAllocatorD3D12.h"
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#include "dawn/native/d3d12/D3D12Error.h"
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#include "dawn/native/d3d12/DeviceD3D12.h"
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#include "dawn/native/d3d12/HeapD3D12.h"
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#include "dawn/native/d3d12/ResidencyManagerD3D12.h"
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namespace dawn::native::d3d12 {
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HeapAllocator::HeapAllocator(Device* device,
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D3D12_HEAP_TYPE heapType,
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D3D12_HEAP_FLAGS heapFlags,
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MemorySegment memorySegment)
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: mDevice(device),
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mHeapType(heapType),
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mHeapFlags(heapFlags),
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mMemorySegment(memorySegment) {
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}
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ResultOrError<std::unique_ptr<ResourceHeapBase>> HeapAllocator::AllocateResourceHeap(
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uint64_t size) {
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D3D12_HEAP_DESC heapDesc;
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heapDesc.SizeInBytes = size;
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heapDesc.Properties.Type = mHeapType;
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heapDesc.Properties.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
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heapDesc.Properties.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
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heapDesc.Properties.CreationNodeMask = 0;
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heapDesc.Properties.VisibleNodeMask = 0;
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// It is preferred to use a size that is a multiple of the alignment.
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// However, MSAA heaps are always aligned to 4MB instead of 64KB. This means
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// if the heap size is too small, the VMM would fragment.
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// TODO(crbug.com/dawn/849): Consider having MSAA vs non-MSAA heaps.
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heapDesc.Alignment = D3D12_DEFAULT_MSAA_RESOURCE_PLACEMENT_ALIGNMENT;
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heapDesc.Flags = mHeapFlags;
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// CreateHeap will implicitly make the created heap resident. We must ensure enough free
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// memory exists before allocating to avoid an out-of-memory error when overcommitted.
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DAWN_TRY(mDevice->GetResidencyManager()->EnsureCanAllocate(size, mMemorySegment));
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ComPtr<ID3D12Heap> d3d12Heap;
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DAWN_TRY(CheckOutOfMemoryHRESULT(
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mDevice->GetD3D12Device()->CreateHeap(&heapDesc, IID_PPV_ARGS(&d3d12Heap)),
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"ID3D12Device::CreateHeap"));
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std::unique_ptr<ResourceHeapBase> heapBase =
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std::make_unique<Heap>(std::move(d3d12Heap), mMemorySegment, size);
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// Calling CreateHeap implicitly calls MakeResident on the new heap. We must track this to
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// avoid calling MakeResident a second time.
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mDevice->GetResidencyManager()->TrackResidentAllocation(ToBackend(heapBase.get()));
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return std::move(heapBase);
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}
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void HeapAllocator::DeallocateResourceHeap(std::unique_ptr<ResourceHeapBase> heap) {
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mDevice->ReferenceUntilUnused(static_cast<Heap*>(heap.get())->GetD3D12Heap());
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}
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} // namespace dawn::native::d3d12
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