diff options
Diffstat (limited to 'src/video_core/renderer_vulkan/vk_descriptor_pool.cpp')
-rw-r--r-- | src/video_core/renderer_vulkan/vk_descriptor_pool.cpp | 172 |
1 files changed, 123 insertions, 49 deletions
diff --git a/src/video_core/renderer_vulkan/vk_descriptor_pool.cpp b/src/video_core/renderer_vulkan/vk_descriptor_pool.cpp index 3bea1ff44..8e77e4796 100644 --- a/src/video_core/renderer_vulkan/vk_descriptor_pool.cpp +++ b/src/video_core/renderer_vulkan/vk_descriptor_pool.cpp @@ -2,6 +2,8 @@ // Licensed under GPLv2 or any later version // Refer to the license.txt file included. +#include <mutex> +#include <span> #include <vector> #include "common/common_types.h" @@ -13,77 +15,149 @@ namespace Vulkan { -// Prefer small grow rates to avoid saturating the descriptor pool with barely used pipelines. -constexpr std::size_t SETS_GROW_RATE = 0x20; +// Prefer small grow rates to avoid saturating the descriptor pool with barely used pipelines +constexpr size_t SETS_GROW_RATE = 16; +constexpr s32 SCORE_THRESHOLD = 3; +constexpr u32 SETS_PER_POOL = 64; -DescriptorAllocator::DescriptorAllocator(VKDescriptorPool& descriptor_pool_, - VkDescriptorSetLayout layout_) - : ResourcePool(descriptor_pool_.master_semaphore, SETS_GROW_RATE), - descriptor_pool{&descriptor_pool_}, layout{layout_} {} +struct DescriptorBank { + DescriptorBankInfo info; + std::vector<vk::DescriptorPool> pools; +}; -VkDescriptorSet DescriptorAllocator::Commit() { - const std::size_t index = CommitResource(); - return descriptors_allocations[index / SETS_GROW_RATE][index % SETS_GROW_RATE]; +bool DescriptorBankInfo::IsSuperset(const DescriptorBankInfo& subset) const noexcept { + return uniform_buffers >= subset.uniform_buffers && storage_buffers >= subset.storage_buffers && + texture_buffers >= subset.texture_buffers && image_buffers >= subset.image_buffers && + textures >= subset.textures && images >= subset.image_buffers; } -void DescriptorAllocator::Allocate(std::size_t begin, std::size_t end) { - descriptors_allocations.push_back(descriptor_pool->AllocateDescriptors(layout, end - begin)); +template <typename Descriptors> +static u32 Accumulate(const Descriptors& descriptors) { + u32 count = 0; + for (const auto& descriptor : descriptors) { + count += descriptor.count; + } + return count; } -VKDescriptorPool::VKDescriptorPool(const Device& device_, VKScheduler& scheduler) - : device{device_}, master_semaphore{scheduler.GetMasterSemaphore()}, active_pool{ - AllocateNewPool()} {} - -VKDescriptorPool::~VKDescriptorPool() = default; - -vk::DescriptorPool* VKDescriptorPool::AllocateNewPool() { - static constexpr u32 num_sets = 0x20000; - static constexpr VkDescriptorPoolSize pool_sizes[] = { - {VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, num_sets * 90}, - {VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, num_sets * 60}, - {VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER, num_sets * 64}, - {VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, num_sets * 64}, - {VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER, num_sets * 64}, - {VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, num_sets * 40}, - }; +static DescriptorBankInfo MakeBankInfo(std::span<const Shader::Info> infos) { + DescriptorBankInfo bank; + for (const Shader::Info& info : infos) { + bank.uniform_buffers += Accumulate(info.constant_buffer_descriptors); + bank.storage_buffers += Accumulate(info.storage_buffers_descriptors); + bank.texture_buffers += Accumulate(info.texture_buffer_descriptors); + bank.image_buffers += Accumulate(info.image_buffer_descriptors); + bank.textures += Accumulate(info.texture_descriptors); + bank.images += Accumulate(info.image_descriptors); + } + bank.score = bank.uniform_buffers + bank.storage_buffers + bank.texture_buffers + + bank.image_buffers + bank.textures + bank.images; + return bank; +} - const VkDescriptorPoolCreateInfo ci{ +static void AllocatePool(const Device& device, DescriptorBank& bank) { + std::array<VkDescriptorPoolSize, 6> pool_sizes; + size_t pool_cursor{}; + const auto add = [&](VkDescriptorType type, u32 count) { + if (count > 0) { + pool_sizes[pool_cursor++] = { + .type = type, + .descriptorCount = count * SETS_PER_POOL, + }; + } + }; + const auto& info{bank.info}; + add(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, info.uniform_buffers); + add(VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, info.storage_buffers); + add(VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER, info.texture_buffers); + add(VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER, info.image_buffers); + add(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, info.textures); + add(VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, info.images); + bank.pools.push_back(device.GetLogical().CreateDescriptorPool({ .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO, .pNext = nullptr, .flags = VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT, - .maxSets = num_sets, - .poolSizeCount = static_cast<u32>(std::size(pool_sizes)), + .maxSets = SETS_PER_POOL, + .poolSizeCount = static_cast<u32>(pool_cursor), .pPoolSizes = std::data(pool_sizes), - }; - return &pools.emplace_back(device.GetLogical().CreateDescriptorPool(ci)); + })); } -vk::DescriptorSets VKDescriptorPool::AllocateDescriptors(VkDescriptorSetLayout layout, - std::size_t count) { - const std::vector layout_copies(count, layout); - VkDescriptorSetAllocateInfo ai{ +DescriptorAllocator::DescriptorAllocator(const Device& device_, MasterSemaphore& master_semaphore_, + DescriptorBank& bank_, VkDescriptorSetLayout layout_) + : ResourcePool(master_semaphore_, SETS_GROW_RATE), device{&device_}, bank{&bank_}, + layout{layout_} {} + +VkDescriptorSet DescriptorAllocator::Commit() { + const size_t index = CommitResource(); + return sets[index / SETS_GROW_RATE][index % SETS_GROW_RATE]; +} + +void DescriptorAllocator::Allocate(size_t begin, size_t end) { + sets.push_back(AllocateDescriptors(end - begin)); +} + +vk::DescriptorSets DescriptorAllocator::AllocateDescriptors(size_t count) { + const std::vector<VkDescriptorSetLayout> layouts(count, layout); + VkDescriptorSetAllocateInfo allocate_info{ .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO, .pNext = nullptr, - .descriptorPool = **active_pool, + .descriptorPool = *bank->pools.back(), .descriptorSetCount = static_cast<u32>(count), - .pSetLayouts = layout_copies.data(), + .pSetLayouts = layouts.data(), }; - - vk::DescriptorSets sets = active_pool->Allocate(ai); - if (!sets.IsOutOfPoolMemory()) { - return sets; + vk::DescriptorSets new_sets = bank->pools.back().Allocate(allocate_info); + if (!new_sets.IsOutOfPoolMemory()) { + return new_sets; } - // Our current pool is out of memory. Allocate a new one and retry - active_pool = AllocateNewPool(); - ai.descriptorPool = **active_pool; - sets = active_pool->Allocate(ai); - if (!sets.IsOutOfPoolMemory()) { - return sets; + AllocatePool(*device, *bank); + allocate_info.descriptorPool = *bank->pools.back(); + new_sets = bank->pools.back().Allocate(allocate_info); + if (!new_sets.IsOutOfPoolMemory()) { + return new_sets; } - // After allocating a new pool, we are out of memory again. We can't handle this from here. throw vk::Exception(VK_ERROR_OUT_OF_POOL_MEMORY); } +DescriptorPool::DescriptorPool(const Device& device_, VKScheduler& scheduler) + : device{device_}, master_semaphore{scheduler.GetMasterSemaphore()} {} + +DescriptorPool::~DescriptorPool() = default; + +DescriptorAllocator DescriptorPool::Allocator(VkDescriptorSetLayout layout, + std::span<const Shader::Info> infos) { + return Allocator(layout, MakeBankInfo(infos)); +} + +DescriptorAllocator DescriptorPool::Allocator(VkDescriptorSetLayout layout, + const Shader::Info& info) { + return Allocator(layout, MakeBankInfo(std::array{info})); +} + +DescriptorAllocator DescriptorPool::Allocator(VkDescriptorSetLayout layout, + const DescriptorBankInfo& info) { + return DescriptorAllocator(device, master_semaphore, Bank(info), layout); +} + +DescriptorBank& DescriptorPool::Bank(const DescriptorBankInfo& reqs) { + std::shared_lock read_lock{banks_mutex}; + const auto it = std::ranges::find_if(bank_infos, [&reqs](const DescriptorBankInfo& bank) { + return std::abs(bank.score - reqs.score) < SCORE_THRESHOLD && bank.IsSuperset(reqs); + }); + if (it != bank_infos.end()) { + return *banks[std::distance(bank_infos.begin(), it)].get(); + } + read_lock.unlock(); + + std::unique_lock write_lock{banks_mutex}; + bank_infos.push_back(reqs); + + auto& bank = *banks.emplace_back(std::make_unique<DescriptorBank>()); + bank.info = reqs; + AllocatePool(device, bank); + return bank; +} + } // namespace Vulkan |