chromium/third_party/dawn/src/dawn/native/vulkan/ResourceMemoryAllocatorVk.cpp

// Copyright 2019 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
//    contributors may be used to endorse or promote products derived from
//    this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#include "dawn/native/vulkan/ResourceMemoryAllocatorVk.h"

#include <algorithm>
#include <utility>

#include "dawn/common/Math.h"
#include "dawn/native/BuddyMemoryAllocator.h"
#include "dawn/native/Queue.h"
#include "dawn/native/ResourceHeapAllocator.h"
#include "dawn/native/vulkan/DeviceVk.h"
#include "dawn/native/vulkan/FencedDeleter.h"
#include "dawn/native/vulkan/ResourceHeapVk.h"
#include "dawn/native/vulkan/VulkanError.h"
#include "partition_alloc/pointers/raw_ptr.h"

namespace dawn::native::vulkan {

namespace {

// TODO(crbug.com/dawn/849): This is a hardcoded heurstic to choose when to
// suballocate but it should ideally depend on the size of the memory heaps and other
// factors.
constexpr uint64_t kMaxSizeForSubAllocation = …;  // 4MiB

// Have each bucket of the buddy system allocate at least some resource of the maximum
// size
constexpr uint64_t kBuddyHeapsSize = …;

bool IsMemoryKindMappable(MemoryKind memoryKind) { … }

}  // anonymous namespace

// SingleTypeAllocator is a combination of a BuddyMemoryAllocator and its client and can
// service suballocation requests, but for a single Vulkan memory type.

class ResourceMemoryAllocator::SingleTypeAllocator : public ResourceHeapAllocator { … };

// Implementation of ResourceMemoryAllocator

ResourceMemoryAllocator::ResourceMemoryAllocator(Device* device) : … { … }

ResourceMemoryAllocator::~ResourceMemoryAllocator() = default;

ResultOrError<ResourceMemoryAllocation> ResourceMemoryAllocator::Allocate(
    const VkMemoryRequirements& requirements,
    MemoryKind kind,
    bool forceDisableSubAllocation) { … }

void ResourceMemoryAllocator::Deallocate(ResourceMemoryAllocation* allocation) { … }

void ResourceMemoryAllocator::Tick(ExecutionSerial completedSerial) { … }

int ResourceMemoryAllocator::FindBestTypeIndex(VkMemoryRequirements requirements, MemoryKind kind) { … }

void ResourceMemoryAllocator::DestroyPool() { … }

}  // namespace dawn::native::vulkan