| // Copyright 2017 The Dawn Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "dawn_native/vulkan/BufferVk.h" |
| |
| #include "dawn_native/CommandBuffer.h" |
| #include "dawn_native/vulkan/DeviceVk.h" |
| #include "dawn_native/vulkan/FencedDeleter.h" |
| #include "dawn_native/vulkan/ResourceHeapVk.h" |
| #include "dawn_native/vulkan/ResourceMemoryAllocatorVk.h" |
| #include "dawn_native/vulkan/UtilsVulkan.h" |
| #include "dawn_native/vulkan/VulkanError.h" |
| |
| #include <cstring> |
| |
| namespace dawn_native { namespace vulkan { |
| |
| namespace { |
| |
| VkBufferUsageFlags VulkanBufferUsage(wgpu::BufferUsage usage) { |
| VkBufferUsageFlags flags = 0; |
| |
| if (usage & wgpu::BufferUsage::CopySrc) { |
| flags |= VK_BUFFER_USAGE_TRANSFER_SRC_BIT; |
| } |
| if (usage & wgpu::BufferUsage::CopyDst) { |
| flags |= VK_BUFFER_USAGE_TRANSFER_DST_BIT; |
| } |
| if (usage & wgpu::BufferUsage::Index) { |
| flags |= VK_BUFFER_USAGE_INDEX_BUFFER_BIT; |
| } |
| if (usage & wgpu::BufferUsage::Vertex) { |
| flags |= VK_BUFFER_USAGE_VERTEX_BUFFER_BIT; |
| } |
| if (usage & wgpu::BufferUsage::Uniform) { |
| flags |= VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT; |
| } |
| if (usage & |
| (wgpu::BufferUsage::Storage | kInternalStorageBuffer | kReadOnlyStorageBuffer)) { |
| flags |= VK_BUFFER_USAGE_STORAGE_BUFFER_BIT; |
| } |
| if (usage & wgpu::BufferUsage::Indirect) { |
| flags |= VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT; |
| } |
| if (usage & wgpu::BufferUsage::QueryResolve) { |
| flags |= VK_BUFFER_USAGE_TRANSFER_DST_BIT; |
| } |
| |
| return flags; |
| } |
| |
| VkPipelineStageFlags VulkanPipelineStage(wgpu::BufferUsage usage) { |
| VkPipelineStageFlags flags = 0; |
| |
| if (usage & kMappableBufferUsages) { |
| flags |= VK_PIPELINE_STAGE_HOST_BIT; |
| } |
| if (usage & (wgpu::BufferUsage::CopySrc | wgpu::BufferUsage::CopyDst)) { |
| flags |= VK_PIPELINE_STAGE_TRANSFER_BIT; |
| } |
| if (usage & (wgpu::BufferUsage::Index | wgpu::BufferUsage::Vertex)) { |
| flags |= VK_PIPELINE_STAGE_VERTEX_INPUT_BIT; |
| } |
| if (usage & (wgpu::BufferUsage::Uniform | wgpu::BufferUsage::Storage | |
| kInternalStorageBuffer | kReadOnlyStorageBuffer)) { |
| flags |= VK_PIPELINE_STAGE_VERTEX_SHADER_BIT | |
| VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT | |
| VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT; |
| } |
| if (usage & wgpu::BufferUsage::Indirect) { |
| flags |= VK_PIPELINE_STAGE_DRAW_INDIRECT_BIT; |
| } |
| if (usage & wgpu::BufferUsage::QueryResolve) { |
| flags |= VK_PIPELINE_STAGE_TRANSFER_BIT; |
| } |
| |
| return flags; |
| } |
| |
| VkAccessFlags VulkanAccessFlags(wgpu::BufferUsage usage) { |
| VkAccessFlags flags = 0; |
| |
| if (usage & wgpu::BufferUsage::MapRead) { |
| flags |= VK_ACCESS_HOST_READ_BIT; |
| } |
| if (usage & wgpu::BufferUsage::MapWrite) { |
| flags |= VK_ACCESS_HOST_WRITE_BIT; |
| } |
| if (usage & wgpu::BufferUsage::CopySrc) { |
| flags |= VK_ACCESS_TRANSFER_READ_BIT; |
| } |
| if (usage & wgpu::BufferUsage::CopyDst) { |
| flags |= VK_ACCESS_TRANSFER_WRITE_BIT; |
| } |
| if (usage & wgpu::BufferUsage::Index) { |
| flags |= VK_ACCESS_INDEX_READ_BIT; |
| } |
| if (usage & wgpu::BufferUsage::Vertex) { |
| flags |= VK_ACCESS_VERTEX_ATTRIBUTE_READ_BIT; |
| } |
| if (usage & wgpu::BufferUsage::Uniform) { |
| flags |= VK_ACCESS_UNIFORM_READ_BIT; |
| } |
| if (usage & (wgpu::BufferUsage::Storage | kInternalStorageBuffer)) { |
| flags |= VK_ACCESS_SHADER_READ_BIT | VK_ACCESS_SHADER_WRITE_BIT; |
| } |
| if (usage & kReadOnlyStorageBuffer) { |
| flags |= VK_ACCESS_SHADER_READ_BIT; |
| } |
| if (usage & wgpu::BufferUsage::Indirect) { |
| flags |= VK_ACCESS_INDIRECT_COMMAND_READ_BIT; |
| } |
| if (usage & wgpu::BufferUsage::QueryResolve) { |
| flags |= VK_ACCESS_TRANSFER_WRITE_BIT; |
| } |
| |
| return flags; |
| } |
| |
| } // namespace |
| |
| // static |
| ResultOrError<Ref<Buffer>> Buffer::Create(Device* device, const BufferDescriptor* descriptor) { |
| Ref<Buffer> buffer = AcquireRef(new Buffer(device, descriptor)); |
| DAWN_TRY(buffer->Initialize(descriptor->mappedAtCreation)); |
| return std::move(buffer); |
| } |
| |
| MaybeError Buffer::Initialize(bool mappedAtCreation) { |
| // vkCmdFillBuffer requires the size to be a multiple of 4. |
| constexpr size_t kAlignment = 4u; |
| |
| uint32_t extraBytes = 0u; |
| if (GetUsage() & (wgpu::BufferUsage::Vertex | wgpu::BufferUsage::Index)) { |
| // vkCmdSetIndexBuffer and vkCmdSetVertexBuffer are invalid if the offset |
| // is equal to the whole buffer size. Allocate at least one more byte so it |
| // is valid to setVertex/IndexBuffer with a zero-sized range at the end |
| // of the buffer with (offset=buffer.size, size=0). |
| extraBytes = 1u; |
| } |
| |
| uint64_t size = GetSize(); |
| if (size > std::numeric_limits<uint64_t>::max() - extraBytes) { |
| return DAWN_OUT_OF_MEMORY_ERROR("Buffer allocation is too large"); |
| } |
| |
| size += extraBytes; |
| |
| // Allocate at least 4 bytes so clamped accesses are always in bounds. |
| // Also, Vulkan requires the size to be non-zero. |
| size = std::max(size, uint64_t(4u)); |
| |
| if (size > std::numeric_limits<uint64_t>::max() - kAlignment) { |
| // Alignment would overlow. |
| return DAWN_OUT_OF_MEMORY_ERROR("Buffer allocation is too large"); |
| } |
| mAllocatedSize = Align(size, kAlignment); |
| |
| // Avoid passing ludicrously large sizes to drivers because it causes issues: drivers add |
| // some constants to the size passed and align it, but for values close to the maximum |
| // VkDeviceSize this can cause overflows and makes drivers crash or return bad sizes in the |
| // VkmemoryRequirements. See https://gitlab.khronos.org/vulkan/vulkan/issues/1904 |
| // Any size with one of two top bits of VkDeviceSize set is a HUGE allocation and we can |
| // safely return an OOM error. |
| if (mAllocatedSize & (uint64_t(3) << uint64_t(62))) { |
| return DAWN_OUT_OF_MEMORY_ERROR("Buffer size is HUGE and could cause overflows"); |
| } |
| |
| VkBufferCreateInfo createInfo; |
| createInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO; |
| createInfo.pNext = nullptr; |
| createInfo.flags = 0; |
| createInfo.size = mAllocatedSize; |
| // Add CopyDst for non-mappable buffer initialization with mappedAtCreation |
| // and robust resource initialization. |
| createInfo.usage = VulkanBufferUsage(GetUsage() | wgpu::BufferUsage::CopyDst); |
| createInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE; |
| createInfo.queueFamilyIndexCount = 0; |
| createInfo.pQueueFamilyIndices = 0; |
| |
| Device* device = ToBackend(GetDevice()); |
| DAWN_TRY(CheckVkOOMThenSuccess( |
| device->fn.CreateBuffer(device->GetVkDevice(), &createInfo, nullptr, &*mHandle), |
| "vkCreateBuffer")); |
| |
| // Gather requirements for the buffer's memory and allocate it. |
| VkMemoryRequirements requirements; |
| device->fn.GetBufferMemoryRequirements(device->GetVkDevice(), mHandle, &requirements); |
| |
| MemoryKind requestKind = MemoryKind::Linear; |
| if (GetUsage() & kMappableBufferUsages) { |
| requestKind = MemoryKind::LinearMappable; |
| } |
| DAWN_TRY_ASSIGN(mMemoryAllocation, |
| device->GetResourceMemoryAllocator()->Allocate(requirements, requestKind)); |
| |
| // Finally associate it with the buffer. |
| DAWN_TRY(CheckVkSuccess( |
| device->fn.BindBufferMemory(device->GetVkDevice(), mHandle, |
| ToBackend(mMemoryAllocation.GetResourceHeap())->GetMemory(), |
| mMemoryAllocation.GetOffset()), |
| "vkBindBufferMemory")); |
| |
| // The buffers with mappedAtCreation == true will be initialized in |
| // BufferBase::MapAtCreation(). |
| if (device->IsToggleEnabled(Toggle::NonzeroClearResourcesOnCreationForTesting) && |
| !mappedAtCreation) { |
| ClearBuffer(device->GetPendingRecordingContext(), 0x01010101); |
| } |
| |
| // Initialize the padding bytes to zero. |
| if (device->IsToggleEnabled(Toggle::LazyClearResourceOnFirstUse) && !mappedAtCreation) { |
| uint32_t paddingBytes = GetAllocatedSize() - GetSize(); |
| if (paddingBytes > 0) { |
| uint32_t clearSize = Align(paddingBytes, 4); |
| uint64_t clearOffset = GetAllocatedSize() - clearSize; |
| |
| CommandRecordingContext* recordingContext = device->GetPendingRecordingContext(); |
| ClearBuffer(recordingContext, 0, clearOffset, clearSize); |
| } |
| } |
| |
| SetLabelImpl(); |
| |
| return {}; |
| } |
| |
| Buffer::~Buffer() { |
| DestroyInternal(); |
| } |
| |
| VkBuffer Buffer::GetHandle() const { |
| return mHandle; |
| } |
| |
| void Buffer::TransitionUsageNow(CommandRecordingContext* recordingContext, |
| wgpu::BufferUsage usage) { |
| VkBufferMemoryBarrier barrier; |
| VkPipelineStageFlags srcStages = 0; |
| VkPipelineStageFlags dstStages = 0; |
| |
| if (TransitionUsageAndGetResourceBarrier(usage, &barrier, &srcStages, &dstStages)) { |
| ASSERT(srcStages != 0 && dstStages != 0); |
| ToBackend(GetDevice()) |
| ->fn.CmdPipelineBarrier(recordingContext->commandBuffer, srcStages, dstStages, 0, 0, |
| nullptr, 1u, &barrier, 0, nullptr); |
| } |
| } |
| |
| bool Buffer::TransitionUsageAndGetResourceBarrier(wgpu::BufferUsage usage, |
| VkBufferMemoryBarrier* barrier, |
| VkPipelineStageFlags* srcStages, |
| VkPipelineStageFlags* dstStages) { |
| bool lastIncludesTarget = IsSubset(usage, mLastUsage); |
| bool lastReadOnly = IsSubset(mLastUsage, kReadOnlyBufferUsages); |
| |
| // We can skip transitions to already current read-only usages. |
| if (lastIncludesTarget && lastReadOnly) { |
| return false; |
| } |
| |
| // Special-case for the initial transition: Vulkan doesn't allow access flags to be 0. |
| if (mLastUsage == wgpu::BufferUsage::None) { |
| mLastUsage = usage; |
| return false; |
| } |
| |
| *srcStages |= VulkanPipelineStage(mLastUsage); |
| *dstStages |= VulkanPipelineStage(usage); |
| |
| barrier->sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER; |
| barrier->pNext = nullptr; |
| barrier->srcAccessMask = VulkanAccessFlags(mLastUsage); |
| barrier->dstAccessMask = VulkanAccessFlags(usage); |
| barrier->srcQueueFamilyIndex = 0; |
| barrier->dstQueueFamilyIndex = 0; |
| barrier->buffer = mHandle; |
| barrier->offset = 0; |
| // VK_WHOLE_SIZE doesn't work on old Windows Intel Vulkan drivers, so we don't use it. |
| barrier->size = GetAllocatedSize(); |
| |
| mLastUsage = usage; |
| |
| return true; |
| } |
| |
| bool Buffer::IsCPUWritableAtCreation() const { |
| // TODO(enga): Handle CPU-visible memory on UMA |
| return mMemoryAllocation.GetMappedPointer() != nullptr; |
| } |
| |
| MaybeError Buffer::MapAtCreationImpl() { |
| return {}; |
| } |
| |
| MaybeError Buffer::MapAsyncImpl(wgpu::MapMode mode, size_t offset, size_t size) { |
| Device* device = ToBackend(GetDevice()); |
| |
| CommandRecordingContext* recordingContext = device->GetPendingRecordingContext(); |
| |
| // TODO(crbug.com/dawn/852): initialize mapped buffer in CPU side. |
| EnsureDataInitialized(recordingContext); |
| |
| if (mode & wgpu::MapMode::Read) { |
| TransitionUsageNow(recordingContext, wgpu::BufferUsage::MapRead); |
| } else { |
| ASSERT(mode & wgpu::MapMode::Write); |
| TransitionUsageNow(recordingContext, wgpu::BufferUsage::MapWrite); |
| } |
| return {}; |
| } |
| |
| void Buffer::UnmapImpl() { |
| // No need to do anything, we keep CPU-visible memory mapped at all time. |
| } |
| |
| void* Buffer::GetMappedPointerImpl() { |
| uint8_t* memory = mMemoryAllocation.GetMappedPointer(); |
| ASSERT(memory != nullptr); |
| return memory; |
| } |
| |
| void Buffer::DestroyImpl() { |
| ToBackend(GetDevice())->GetResourceMemoryAllocator()->Deallocate(&mMemoryAllocation); |
| |
| if (mHandle != VK_NULL_HANDLE) { |
| ToBackend(GetDevice())->GetFencedDeleter()->DeleteWhenUnused(mHandle); |
| mHandle = VK_NULL_HANDLE; |
| } |
| } |
| |
| void Buffer::EnsureDataInitialized(CommandRecordingContext* recordingContext) { |
| if (IsDataInitialized() || |
| !GetDevice()->IsToggleEnabled(Toggle::LazyClearResourceOnFirstUse)) { |
| return; |
| } |
| |
| InitializeToZero(recordingContext); |
| } |
| |
| void Buffer::EnsureDataInitializedAsDestination(CommandRecordingContext* recordingContext, |
| uint64_t offset, |
| uint64_t size) { |
| if (IsDataInitialized() || |
| !GetDevice()->IsToggleEnabled(Toggle::LazyClearResourceOnFirstUse)) { |
| return; |
| } |
| |
| if (IsFullBufferRange(offset, size)) { |
| SetIsDataInitialized(); |
| } else { |
| InitializeToZero(recordingContext); |
| } |
| } |
| |
| void Buffer::EnsureDataInitializedAsDestination(CommandRecordingContext* recordingContext, |
| const CopyTextureToBufferCmd* copy) { |
| if (IsDataInitialized() || |
| !GetDevice()->IsToggleEnabled(Toggle::LazyClearResourceOnFirstUse)) { |
| return; |
| } |
| |
| if (IsFullBufferOverwrittenInTextureToBufferCopy(copy)) { |
| SetIsDataInitialized(); |
| } else { |
| InitializeToZero(recordingContext); |
| } |
| } |
| |
| void Buffer::SetLabelImpl() { |
| SetDebugName(ToBackend(GetDevice()), VK_OBJECT_TYPE_BUFFER, |
| reinterpret_cast<uint64_t&>(mHandle), "Dawn_Buffer", GetLabel()); |
| } |
| |
| void Buffer::InitializeToZero(CommandRecordingContext* recordingContext) { |
| ASSERT(GetDevice()->IsToggleEnabled(Toggle::LazyClearResourceOnFirstUse)); |
| ASSERT(!IsDataInitialized()); |
| |
| ClearBuffer(recordingContext, 0u); |
| GetDevice()->IncrementLazyClearCountForTesting(); |
| SetIsDataInitialized(); |
| } |
| |
| void Buffer::ClearBuffer(CommandRecordingContext* recordingContext, |
| uint32_t clearValue, |
| uint64_t offset, |
| uint64_t size) { |
| ASSERT(recordingContext != nullptr); |
| size = size > 0 ? size : GetAllocatedSize(); |
| ASSERT(size > 0); |
| |
| TransitionUsageNow(recordingContext, wgpu::BufferUsage::CopyDst); |
| |
| Device* device = ToBackend(GetDevice()); |
| // VK_WHOLE_SIZE doesn't work on old Windows Intel Vulkan drivers, so we don't use it. |
| // Note: Allocated size must be a multiple of 4. |
| ASSERT(size % 4 == 0); |
| device->fn.CmdFillBuffer(recordingContext->commandBuffer, mHandle, offset, size, |
| clearValue); |
| } |
| }} // namespace dawn_native::vulkan |
