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[vk] Fast UBO: fix tracking, resize heuristics, add debug guard (#2695)

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Co-authored-by: Ribbit <ribbit@placeholder.com>
Reviewed-on: eden-emu/eden#2695
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Co-authored-by: Ribbit <ribbit@eden-emu.dev>
Co-committed-by: Ribbit <ribbit@eden-emu.dev>
This commit is contained in:
Ribbit 2025-10-08 05:39:08 +02:00 • committed by crueter
parent db65f10768
commit 8078990b9b
Signed by untrusted user: crueter
GPG key ID: 425ACD2D4830EBC6
6 changed files with 76 additions and 33 deletions
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6
src/core/device_memory_manager.h
View file

@ -1,3 +1,6 @@
// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
@ -109,6 +112,9 @@ public:
void ReadBlock(DAddr address, void* dest_pointer, size_t size);
void ReadBlockUnsafe(DAddr address, void* dest_pointer, size_t size);
#ifdef YUZU_DEBUG
bool ReadBlockFastChecked(DAddr address, void* dest_pointer, size_t size);
#endif
void WriteBlock(DAddr address, const void* src_pointer, size_t size);
void WriteBlockUnsafe(DAddr address, const void* src_pointer, size_t size);

26
src/core/device_memory_manager.inc
View file

@ -1,3 +1,6 @@
// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
@ -467,6 +470,29 @@ void DeviceMemoryManager<Traits>::ReadBlockUnsafe(DAddr address, void* dest_poin
});
}
#ifdef YUZU_DEBUG
template <typename Traits>
bool DeviceMemoryManager<Traits>::ReadBlockFastChecked(DAddr address, void* dest_pointer,
size_t size) {
bool success = true;
WalkBlock(
address, size,
[&](size_t copy_amount, DAddr current_vaddr) {
LOG_CRITICAL(Render, "DeviceMemory OOB/unmapped: addr=0x{:x} size={}", current_vaddr,
size);
std::memset(dest_pointer, 0, copy_amount);
success = false;
},
[&](size_t copy_amount, const u8* const src_ptr) {
std::memcpy(dest_pointer, src_ptr, copy_amount);
},
[&](const std::size_t copy_amount) {
dest_pointer = static_cast<u8*>(dest_pointer) + copy_amount;
});
return success;
}
#endif
template <typename Traits>
void DeviceMemoryManager<Traits>::WriteBlockUnsafe(DAddr address, const void* src_pointer,
size_t size) {

42
src/video_core/buffer_cache/buffer_cache.h
View file

@ -386,11 +386,10 @@ void BufferCache<P>::BindHostComputeBuffers() {
template <class P>
void BufferCache<P>::SetUniformBuffersState(const std::array<u32, NUM_STAGES>& mask,
const UniformBufferSizes* sizes) {
if constexpr (HAS_PERSISTENT_UNIFORM_BUFFER_BINDINGS) {
if (channel_state->enabled_uniform_buffer_masks != mask) {
if constexpr (IS_OPENGL) {
channel_state->fast_bound_uniform_buffers.fill(0);
}
const bool mask_changed = channel_state->enabled_uniform_buffer_masks != mask;
if (mask_changed) {
channel_state->fast_bound_uniform_buffers.fill(0);
if constexpr (HAS_PERSISTENT_UNIFORM_BUFFER_BINDINGS) {
channel_state->dirty_uniform_buffers.fill(~u32{0});
channel_state->uniform_buffer_binding_sizes.fill({});
}
@ -806,7 +805,7 @@ void BufferCache<P>::BindHostGraphicsUniformBuffer(size_t stage, u32 index, u32
channel_state->uniform_buffer_binding_sizes[stage][binding_index] != size;
if (should_fast_bind) {
// We only have to bind when the currently bound buffer is not the fast version
channel_state->fast_bound_uniform_buffers[stage] |= 1U << binding_index;
channel_state->fast_bound_uniform_buffers[stage] |= 1u << binding_index;
channel_state->uniform_buffer_binding_sizes[stage][binding_index] = size;
runtime.BindFastUniformBuffer(stage, binding_index, size);
}
@ -815,13 +814,22 @@ void BufferCache<P>::BindHostGraphicsUniformBuffer(size_t stage, u32 index, u32
return;
}
}
if constexpr (IS_OPENGL) {
channel_state->fast_bound_uniform_buffers[stage] |= 1U << binding_index;
channel_state->uniform_buffer_binding_sizes[stage][binding_index] = size;
}
channel_state->fast_bound_uniform_buffers[stage] |= 1u << binding_index;
channel_state->uniform_buffer_binding_sizes[stage][binding_index] = size;
// Stream buffer path to avoid stalling on non-Nvidia drivers or Vulkan
const std::span<u8> span = runtime.BindMappedUniformBuffer(stage, binding_index, size);
#ifdef YUZU_DEBUG
ASSERT(binding_index < NUM_GRAPHICS_UNIFORM_BUFFERS);
ASSERT(span.size() >= size && "UBO stream span too small");
if (!device_memory.ReadBlockFastChecked(device_addr, span.data(), size)) {
LOG_CRITICAL(Render, "DeviceMemory OOB/unmapped: addr=0x{:x} size={}", device_addr, size);
channel_state->fast_bound_uniform_buffers[stage] &= ~(1u << binding_index);
ASSERT(false);
return;
}
#else
device_memory.ReadBlockUnsafe(device_addr, span.data(), size);
#endif
return;
}
// Classic cached path
@ -830,7 +838,8 @@ void BufferCache<P>::BindHostGraphicsUniformBuffer(size_t stage, u32 index, u32
}
// Skip binding if it's not needed and if the bound buffer is not the fast version
// This exists to avoid instances where the fast buffer is bound and a GPU write happens
needs_bind |= HasFastUniformBufferBound(stage, binding_index);
const bool was_fast_bound = HasFastUniformBufferBound(stage, binding_index);
needs_bind |= was_fast_bound;
if constexpr (HAS_PERSISTENT_UNIFORM_BUFFER_BINDINGS) {
needs_bind |= channel_state->uniform_buffer_binding_sizes[stage][binding_index] != size;
}
@ -839,9 +848,6 @@ void BufferCache<P>::BindHostGraphicsUniformBuffer(size_t stage, u32 index, u32
}
const u32 offset = buffer.Offset(device_addr);
if constexpr (IS_OPENGL) {
// Fast buffer will be unbound
channel_state->fast_bound_uniform_buffers[stage] &= ~(1U << binding_index);
// Mark the index as dirty if offset doesn't match
const bool is_copy_bind = offset != 0 && !runtime.SupportsNonZeroUniformOffset();
channel_state->dirty_uniform_buffers[stage] |= (is_copy_bind ? 1U : 0U) << index;
@ -855,6 +861,7 @@ void BufferCache<P>::BindHostGraphicsUniformBuffer(size_t stage, u32 index, u32
} else {
runtime.BindUniformBuffer(buffer, offset, size);
}
channel_state->fast_bound_uniform_buffers[stage] &= ~(1u << binding_index);
}
template <class P>
@ -1789,12 +1796,7 @@ std::span<u8> BufferCache<P>::ImmediateBuffer(size_t wanted_capacity) {
template <class P>
bool BufferCache<P>::HasFastUniformBufferBound(size_t stage, u32 binding_index) const noexcept {
if constexpr (IS_OPENGL) {
return ((channel_state->fast_bound_uniform_buffers[stage] >> binding_index) & 1) != 0;
} else {
// Only OpenGL has fast uniform buffers
return false;
}
return ((channel_state->fast_bound_uniform_buffers[stage] >> binding_index) & 1u) != 0;
}
template <class P>

5
src/video_core/buffer_cache/buffer_cache_base.h
View file

@ -53,6 +53,7 @@ constexpr u32 NUM_COMPUTE_UNIFORM_BUFFERS = 8;
constexpr u32 NUM_STORAGE_BUFFERS = 16;
constexpr u32 NUM_TEXTURE_BUFFERS = 32;
constexpr u32 NUM_STAGES = 5;
static_assert(NUM_GRAPHICS_UNIFORM_BUFFERS <= 32, "fast bitmask must fit u32");
using UniformBufferSizes = std::array<std::array<u32, NUM_GRAPHICS_UNIFORM_BUFFERS>, NUM_STAGES>;
using ComputeUniformBufferSizes = std::array<u32, NUM_COMPUTE_UNIFORM_BUFFERS>;
@ -137,8 +138,8 @@ public:
u32 written_compute_texture_buffers = 0;
u32 image_compute_texture_buffers = 0;
std::array<u32, 16> uniform_cache_hits{};
std::array<u32, 16> uniform_cache_shots{};
std::array<u32, NUM_GRAPHICS_UNIFORM_BUFFERS> uniform_cache_hits{};
std::array<u32, NUM_GRAPHICS_UNIFORM_BUFFERS> uniform_cache_shots{};
u32 uniform_buffer_skip_cache_size = DEFAULT_SKIP_CACHE_SIZE;

26
src/video_core/renderer_vulkan/vk_staging_buffer_pool.cpp
View file

@ -25,12 +25,12 @@ namespace {
using namespace Common::Literals;
// Maximum potential alignment of a Vulkan buffer
constexpr VkDeviceSize MAX_ALIGNMENT = 256;
// Minimum alignment we want to enforce for the streaming ring
constexpr VkDeviceSize MIN_STREAM_ALIGNMENT = 256;
// Stream buffer size in bytes
constexpr VkDeviceSize MAX_STREAM_BUFFER_SIZE = 128_MiB;
size_t GetStreamBufferSize(const Device& device) {
size_t GetStreamBufferSize(const Device& device, VkDeviceSize alignment) {
VkDeviceSize size{0};
if (device.HasDebuggingToolAttached()) {
bool found_heap = false;
@ -53,8 +53,9 @@ size_t GetStreamBufferSize(const Device& device) {
// Clamp to the configured maximum, align up for safety, and ensure a sane minimum so
// region_size (stream_buffer_size / NUM_SYNCS) never becomes zero.
const VkDeviceSize aligned = (std::min)(Common::AlignUp(size, MAX_ALIGNMENT), MAX_STREAM_BUFFER_SIZE);
const VkDeviceSize min_size = MAX_ALIGNMENT * StagingBufferPool::NUM_SYNCS;
const VkDeviceSize aligned =
(std::min)(Common::AlignUp(size, alignment), MAX_STREAM_BUFFER_SIZE);
const VkDeviceSize min_size = alignment * StagingBufferPool::NUM_SYNCS;
return static_cast<size_t>((std::max)(aligned, min_size));
}
} // Anonymous namespace
@ -62,8 +63,10 @@ size_t GetStreamBufferSize(const Device& device) {
StagingBufferPool::StagingBufferPool(const Device& device_, MemoryAllocator& memory_allocator_,
Scheduler& scheduler_)
: device{device_}, memory_allocator{memory_allocator_}, scheduler{scheduler_},
stream_buffer_size{GetStreamBufferSize(device)}, region_size{stream_buffer_size /
StagingBufferPool::NUM_SYNCS} {
stream_alignment{std::max<VkDeviceSize>(device_.GetUniformBufferAlignment(),
MIN_STREAM_ALIGNMENT)},
stream_buffer_size{GetStreamBufferSize(device_, stream_alignment)},
region_size{stream_buffer_size / StagingBufferPool::NUM_SYNCS} {
VkBufferCreateInfo stream_ci = {
.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
.pNext = nullptr,
@ -116,10 +119,11 @@ void StagingBufferPool::TickFrame() {
}
StagingBufferRef StagingBufferPool::GetStreamBuffer(size_t size) {
const size_t aligned_size = Common::AlignUp(size, MAX_ALIGNMENT);
const size_t alignment = static_cast<size_t>(stream_alignment);
const size_t aligned_size = Common::AlignUp(size, alignment);
const bool wraps = iterator + size >= stream_buffer_size;
const size_t new_iterator =
wraps ? aligned_size : Common::AlignUp(iterator + size, MAX_ALIGNMENT);
wraps ? aligned_size : Common::AlignUp(iterator + size, alignment);
const size_t begin_region = wraps ? 0 : Region(iterator);
const size_t last_byte = new_iterator == 0 ? 0 : new_iterator - 1;
const size_t end_region = (std::min)(Region(last_byte) + 1, NUM_SYNCS);
@ -145,7 +149,7 @@ StagingBufferRef StagingBufferPool::GetStreamBuffer(size_t size) {
current_tick);
used_iterator = 0;
iterator = 0;
free_iterator = size;
free_iterator = aligned_size;
const size_t head_last_byte = aligned_size == 0 ? 0 : aligned_size - 1;
const size_t head_end_region = (std::min)(Region(head_last_byte) + 1, NUM_SYNCS);
if (AreRegionsActive(0, head_end_region)) {
@ -160,7 +164,7 @@ StagingBufferRef StagingBufferPool::GetStreamBuffer(size_t size) {
iterator = new_iterator;
if (!wraps) {
free_iterator = (std::max)(free_iterator, offset + size);
free_iterator = (std::max)(free_iterator, offset + aligned_size);
}
return StagingBufferRef{

4
src/video_core/renderer_vulkan/vk_staging_buffer_pool.h
View file

@ -1,3 +1,6 @@
// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
@ -102,6 +105,7 @@ private:
MemoryAllocator& memory_allocator;
Scheduler& scheduler;
VkDeviceSize stream_alignment;
vk::Buffer stream_buffer;
std::span<u8> stream_pointer;
VkDeviceSize stream_buffer_size;