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vk_buffer_cache: Temporarily remove buffer cache 

This is intended for a follow up commit to avoid circular dependencies.
master
ReinUsesLisp 2020-01-06 17:58:46 +07:00
parent 89fc75d769
commit 85bb6a6f08
2 changed files with 0 additions and 226 deletions
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122
src/video_core/renderer_vulkan/vk_buffer_cache.cpp
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// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <cstring>
#include <memory>
#include <optional>
#include <tuple>
#include "common/alignment.h"
#include "common/assert.h"
#include "core/memory.h"
#include "video_core/memory_manager.h"
#include "video_core/renderer_vulkan/declarations.h"
#include "video_core/renderer_vulkan/vk_buffer_cache.h"
#include "video_core/renderer_vulkan/vk_scheduler.h"
#include "video_core/renderer_vulkan/vk_stream_buffer.h"
namespace Vulkan {
CachedBufferEntry::CachedBufferEntry(VAddr cpu_addr, std::size_t size, u64 offset,
std::size_t alignment, u8* host_ptr)
: RasterizerCacheObject{host_ptr}, cpu_addr{cpu_addr}, size{size}, offset{offset},
alignment{alignment} {}
VKBufferCache::VKBufferCache(Tegra::MemoryManager& tegra_memory_manager,
Memory::Memory& cpu_memory_,
VideoCore::RasterizerInterface& rasterizer, const VKDevice& device,
VKMemoryManager& memory_manager, VKScheduler& scheduler, u64 size)
: RasterizerCache{rasterizer}, tegra_memory_manager{tegra_memory_manager}, cpu_memory{
cpu_memory_} {
const auto usage = vk::BufferUsageFlagBits::eVertexBuffer |
vk::BufferUsageFlagBits::eIndexBuffer |
vk::BufferUsageFlagBits::eUniformBuffer;
const auto access = vk::AccessFlagBits::eVertexAttributeRead | vk::AccessFlagBits::eIndexRead |
vk::AccessFlagBits::eUniformRead;
stream_buffer =
std::make_unique<VKStreamBuffer>(device, memory_manager, scheduler, size, usage, access,
vk::PipelineStageFlagBits::eAllCommands);
buffer_handle = stream_buffer->GetBuffer();
}
VKBufferCache::~VKBufferCache() = default;
u64 VKBufferCache::UploadMemory(GPUVAddr gpu_addr, std::size_t size, u64 alignment, bool cache) {
const auto cpu_addr{tegra_memory_manager.GpuToCpuAddress(gpu_addr)};
ASSERT_MSG(cpu_addr, "Invalid GPU address");
// Cache management is a big overhead, so only cache entries with a given size.
// TODO: Figure out which size is the best for given games.
cache &= size >= 2048;
u8* const host_ptr{cpu_memory.GetPointer(*cpu_addr)};
if (cache) {
const auto entry = TryGet(host_ptr);
if (entry) {
if (entry->GetSize() >= size && entry->GetAlignment() == alignment) {
return entry->GetOffset();
}
Unregister(entry);
}
}
AlignBuffer(alignment);
const u64 uploaded_offset = buffer_offset;
if (host_ptr == nullptr) {
return uploaded_offset;
}
std::memcpy(buffer_ptr, host_ptr, size);
buffer_ptr += size;
buffer_offset += size;
if (cache) {
auto entry = std::make_shared<CachedBufferEntry>(*cpu_addr, size, uploaded_offset,
alignment, host_ptr);
Register(entry);
}
return uploaded_offset;
}
u64 VKBufferCache::UploadHostMemory(const u8* raw_pointer, std::size_t size, u64 alignment) {
AlignBuffer(alignment);
std::memcpy(buffer_ptr, raw_pointer, size);
const u64 uploaded_offset = buffer_offset;
buffer_ptr += size;
buffer_offset += size;
return uploaded_offset;
}
std::tuple<u8*, u64> VKBufferCache::ReserveMemory(std::size_t size, u64 alignment) {
AlignBuffer(alignment);
u8* const uploaded_ptr = buffer_ptr;
const u64 uploaded_offset = buffer_offset;
buffer_ptr += size;
buffer_offset += size;
return {uploaded_ptr, uploaded_offset};
}
void VKBufferCache::Reserve(std::size_t max_size) {
bool invalidate;
std::tie(buffer_ptr, buffer_offset_base, invalidate) = stream_buffer->Reserve(max_size);
buffer_offset = buffer_offset_base;
if (invalidate) {
InvalidateAll();
}
}
void VKBufferCache::Send() {
stream_buffer->Send(buffer_offset - buffer_offset_base);
}
void VKBufferCache::AlignBuffer(std::size_t alignment) {
// Align the offset, not the mapped pointer
const u64 offset_aligned = Common::AlignUp(buffer_offset, alignment);
buffer_ptr += offset_aligned - buffer_offset;
buffer_offset = offset_aligned;
}
} // namespace Vulkan

104
src/video_core/renderer_vulkan/vk_buffer_cache.h
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// Refer to the license.txt file included.
#pragma once
#include <memory>
#include <tuple>
#include "common/common_types.h"
#include "video_core/gpu.h"
#include "video_core/rasterizer_cache.h"
#include "video_core/renderer_vulkan/declarations.h"
#include "video_core/renderer_vulkan/vk_scheduler.h"
namespace Memory {
class Memory;
}
namespace Tegra {
class MemoryManager;
}
namespace Vulkan {
class VKDevice;
class VKFence;
class VKMemoryManager;
class VKStreamBuffer;
class CachedBufferEntry final : public RasterizerCacheObject {
public:
explicit CachedBufferEntry(VAddr cpu_addr, std::size_t size, u64 offset, std::size_t alignment,
u8* host_ptr);
VAddr GetCpuAddr() const override {
return cpu_addr;
}
std::size_t GetSizeInBytes() const override {
return size;
}
std::size_t GetSize() const {
return size;
}
u64 GetOffset() const {
return offset;
}
std::size_t GetAlignment() const {
return alignment;
}
private:
VAddr cpu_addr{};
std::size_t size{};
u64 offset{};
std::size_t alignment{};
};
class VKBufferCache final : public RasterizerCache<std::shared_ptr<CachedBufferEntry>> {
public:
explicit VKBufferCache(Tegra::MemoryManager& tegra_memory_manager, Memory::Memory& cpu_memory_,
VideoCore::RasterizerInterface& rasterizer, const VKDevice& device,
VKMemoryManager& memory_manager, VKScheduler& scheduler, u64 size);
~VKBufferCache();
/// Uploads data from a guest GPU address. Returns host's buffer offset where it's been
/// allocated.
u64 UploadMemory(GPUVAddr gpu_addr, std::size_t size, u64 alignment = 4, bool cache = true);
/// Uploads from a host memory. Returns host's buffer offset where it's been allocated.
u64 UploadHostMemory(const u8* raw_pointer, std::size_t size, u64 alignment = 4);
/// Reserves memory to be used by host's CPU. Returns mapped address and offset.
std::tuple<u8*, u64> ReserveMemory(std::size_t size, u64 alignment = 4);
/// Reserves a region of memory to be used in subsequent upload/reserve operations.
void Reserve(std::size_t max_size);
/// Ensures that the set data is sent to the device.
void Send();
/// Returns the buffer cache handle.
vk::Buffer GetBuffer() const {
return buffer_handle;
}
protected:
// We do not have to flush this cache as things in it are never modified by us.
void FlushObjectInner(const std::shared_ptr<CachedBufferEntry>& object) override {}
private:
void AlignBuffer(std::size_t alignment);
Tegra::MemoryManager& tegra_memory_manager;
Memory::Memory& cpu_memory;
std::unique_ptr<VKStreamBuffer> stream_buffer;
vk::Buffer buffer_handle;
u8* buffer_ptr = nullptr;
u64 buffer_offset = 0;
u64 buffer_offset_base = 0;
};
} // namespace Vulkan