| // 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/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/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) { |
| flags |= VK_BUFFER_USAGE_STORAGE_BUFFER_BIT; |
| } |
| if (usage & wgpu::BufferUsage::Indirect) { |
| flags |= VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT; |
| } |
| |
| return flags; |
| } |
| |
| VkPipelineStageFlags VulkanPipelineStage(wgpu::BufferUsage usage) { |
| VkPipelineStageFlags flags = 0; |
| |
| if (usage & (wgpu::BufferUsage::MapRead | wgpu::BufferUsage::MapWrite)) { |
| 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 | |
| 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; |
| } |
| |
| 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) { |
| flags |= VK_ACCESS_SHADER_READ_BIT | VK_ACCESS_SHADER_WRITE_BIT; |
| } |
| if (usage & wgpu::BufferUsage::Indirect) { |
| flags |= VK_ACCESS_INDIRECT_COMMAND_READ_BIT; |
| } |
| |
| return flags; |
| } |
| |
| } // namespace |
| |
| // static |
| ResultOrError<Buffer*> Buffer::Create(Device* device, const BufferDescriptor* descriptor) { |
| Ref<Buffer> buffer = AcquireRef(new Buffer(device, descriptor)); |
| DAWN_TRY(buffer->Initialize()); |
| return buffer.Detach(); |
| } |
| |
| MaybeError Buffer::Initialize() { |
| // 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 (GetSize() & (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; |
| // TODO(cwallez@chromium.org): Have a global "zero" buffer that can do everything instead |
| // of creating a new 4-byte buffer? |
| createInfo.size = std::max(GetSize(), uint64_t(4u)); |
| // Add CopyDst for non-mappable buffer initialization in CreateBufferMapped |
| // 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(CheckVkSuccess( |
| device->fn.CreateBuffer(device->GetVkDevice(), &createInfo, nullptr, &*mHandle), |
| "vkCreateBuffer")); |
| |
| VkMemoryRequirements requirements; |
| device->fn.GetBufferMemoryRequirements(device->GetVkDevice(), mHandle, &requirements); |
| |
| bool requestMappable = |
| (GetUsage() & (wgpu::BufferUsage::MapRead | wgpu::BufferUsage::MapWrite)) != 0; |
| DAWN_TRY_ASSIGN(mMemoryAllocation, device->AllocateMemory(requirements, requestMappable)); |
| |
| DAWN_TRY(CheckVkSuccess( |
| device->fn.BindBufferMemory(device->GetVkDevice(), mHandle, |
| ToBackend(mMemoryAllocation.GetResourceHeap())->GetMemory(), |
| mMemoryAllocation.GetOffset()), |
| "vkBindBufferMemory")); |
| |
| return {}; |
| } |
| |
| Buffer::~Buffer() { |
| DestroyInternal(); |
| } |
| |
| void Buffer::OnMapReadCommandSerialFinished(uint32_t mapSerial, const void* data) { |
| CallMapReadCallback(mapSerial, WGPUBufferMapAsyncStatus_Success, data, GetSize()); |
| } |
| |
| void Buffer::OnMapWriteCommandSerialFinished(uint32_t mapSerial, void* data) { |
| CallMapWriteCallback(mapSerial, WGPUBufferMapAsyncStatus_Success, data, GetSize()); |
| } |
| |
| VkBuffer Buffer::GetHandle() const { |
| return mHandle; |
| } |
| |
| void Buffer::TransitionUsageNow(CommandRecordingContext* recordingContext, |
| wgpu::BufferUsage usage) { |
| bool lastIncludesTarget = (mLastUsage & usage) == usage; |
| bool lastReadOnly = (mLastUsage & kReadOnlyBufferUsages) == mLastUsage; |
| |
| // We can skip transitions to already current read-only usages. |
| if (lastIncludesTarget && lastReadOnly) { |
| return; |
| } |
| |
| // Special-case for the initial transition: Vulkan doesn't allow access flags to be 0. |
| if (mLastUsage == wgpu::BufferUsage::None) { |
| mLastUsage = usage; |
| return; |
| } |
| |
| VkPipelineStageFlags srcStages = VulkanPipelineStage(mLastUsage); |
| VkPipelineStageFlags dstStages = VulkanPipelineStage(usage); |
| |
| VkBufferMemoryBarrier barrier; |
| 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; |
| barrier.size = GetSize(); |
| |
| ToBackend(GetDevice()) |
| ->fn.CmdPipelineBarrier(recordingContext->commandBuffer, srcStages, dstStages, 0, 0, |
| nullptr, 1, &barrier, 0, nullptr); |
| |
| mLastUsage = usage; |
| } |
| |
| bool Buffer::IsMapWritable() const { |
| // TODO(enga): Handle CPU-visible memory on UMA |
| return mMemoryAllocation.GetMappedPointer() != nullptr; |
| } |
| |
| MaybeError Buffer::MapAtCreationImpl(uint8_t** mappedPointer) { |
| *mappedPointer = mMemoryAllocation.GetMappedPointer(); |
| return {}; |
| } |
| |
| MaybeError Buffer::MapReadAsyncImpl(uint32_t serial) { |
| Device* device = ToBackend(GetDevice()); |
| |
| CommandRecordingContext* recordingContext = device->GetPendingRecordingContext(); |
| TransitionUsageNow(recordingContext, wgpu::BufferUsage::MapRead); |
| return {}; |
| } |
| |
| MaybeError Buffer::MapWriteAsyncImpl(uint32_t serial) { |
| Device* device = ToBackend(GetDevice()); |
| |
| CommandRecordingContext* recordingContext = device->GetPendingRecordingContext(); |
| 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())->DeallocateMemory(&mMemoryAllocation); |
| |
| if (mHandle != VK_NULL_HANDLE) { |
| ToBackend(GetDevice())->GetFencedDeleter()->DeleteWhenUnused(mHandle); |
| mHandle = VK_NULL_HANDLE; |
| } |
| } |
| |
| }} // namespace dawn_native::vulkan |
