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gl_buffer_cache: Copy to buffers created as STREAM_READ before downloading 

After marking buffers as resident, Nvidia's driver seems to take a
slow path. To workaround this issue, copy to a STREAM_READ buffer and
then call GetNamedBufferSubData on it.

This is a temporary solution until we have asynchronous flushing.
This commit is contained in:
ReinUsesLisp 2020-06-26 16:58:40 -03:00
parent c4fe83a7bc
commit 6481d91e4a
5 changed files with 24 additions and 18 deletions
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6
src/video_core/buffer_cache/buffer_cache.h
View File

@ -322,8 +322,7 @@ protected:
}
private:
MapInterval* MapAddress(const Buffer* block, GPUVAddr gpu_addr, VAddr cpu_addr,
std::size_t size) {
MapInterval* MapAddress(Buffer* block, GPUVAddr gpu_addr, VAddr cpu_addr, std::size_t size) {
const VectorMapInterval overlaps = GetMapsInRange(cpu_addr, size);
if (overlaps.empty()) {
auto& memory_manager = system.GPU().MemoryManager();
@ -377,8 +376,7 @@ private:
return map;
}
void UpdateBlock(const Buffer* block, VAddr start, VAddr end,
const VectorMapInterval& overlaps) {
void UpdateBlock(Buffer* block, VAddr start, VAddr end, const VectorMapInterval& overlaps) {
const IntervalType base_interval{start, end};
IntervalSet interval_set{};
interval_set.add(base_interval);

17
src/video_core/renderer_opengl/gl_buffer_cache.cpp
View File

@ -34,20 +34,27 @@ Buffer::Buffer(const Device& device, VAddr cpu_addr, std::size_t size)
Buffer::~Buffer() = default;
void Buffer::Upload(std::size_t offset, std::size_t size, const u8* data) const {
void Buffer::Upload(std::size_t offset, std::size_t size, const u8* data) {
glNamedBufferSubData(Handle(), static_cast<GLintptr>(offset), static_cast<GLsizeiptr>(size),
data);
}
void Buffer::Download(std::size_t offset, std::size_t size, u8* data) const {
void Buffer::Download(std::size_t offset, std::size_t size, u8* data) {
MICROPROFILE_SCOPE(OpenGL_Buffer_Download);
const GLsizeiptr gl_size = static_cast<GLsizeiptr>(size);
const GLintptr gl_offset = static_cast<GLintptr>(offset);
if (read_buffer.handle == 0) {
read_buffer.Create();
glNamedBufferData(read_buffer.handle, static_cast<GLsizeiptr>(Size()), nullptr,
GL_STREAM_READ);
}
glMemoryBarrier(GL_BUFFER_UPDATE_BARRIER_BIT);
glGetNamedBufferSubData(Handle(), static_cast<GLintptr>(offset), static_cast<GLsizeiptr>(size),
data);
glCopyNamedBufferSubData(gl_buffer.handle, read_buffer.handle, gl_offset, gl_offset, gl_size);
glGetNamedBufferSubData(read_buffer.handle, gl_offset, gl_size, data);
}
void Buffer::CopyFrom(const Buffer& src, std::size_t src_offset, std::size_t dst_offset,
std::size_t size) const {
std::size_t size) {
glCopyNamedBufferSubData(src.Handle(), Handle(), static_cast<GLintptr>(src_offset),
static_cast<GLintptr>(dst_offset), static_cast<GLsizeiptr>(size));
}

7
src/video_core/renderer_opengl/gl_buffer_cache.h
View File

@ -28,12 +28,12 @@ public:
explicit Buffer(const Device& device, VAddr cpu_addr, std::size_t size);
~Buffer();
void Upload(std::size_t offset, std::size_t size, const u8* data) const;
void Upload(std::size_t offset, std::size_t size, const u8* data);
void Download(std::size_t offset, std::size_t size, u8* data) const;
void Download(std::size_t offset, std::size_t size, u8* data);
void CopyFrom(const Buffer& src, std::size_t src_offset, std::size_t dst_offset,
std::size_t size) const;
std::size_t size);
GLuint Handle() const noexcept {
return gl_buffer.handle;
@ -45,6 +45,7 @@ public:
private:
OGLBuffer gl_buffer;
OGLBuffer read_buffer;
u64 gpu_address = 0;
};

6
src/video_core/renderer_vulkan/vk_buffer_cache.cpp
View File

@ -56,7 +56,7 @@ Buffer::Buffer(const VKDevice& device, VKMemoryManager& memory_manager, VKSchedu
Buffer::~Buffer() = default;
void Buffer::Upload(std::size_t offset, std::size_t size, const u8* data) const {
void Buffer::Upload(std::size_t offset, std::size_t size, const u8* data) {
const auto& staging = staging_pool.GetUnusedBuffer(size, true);
std::memcpy(staging.commit->Map(size), data, size);
@ -81,7 +81,7 @@ void Buffer::Upload(std::size_t offset, std::size_t size, const u8* data) const
});
}
void Buffer::Download(std::size_t offset, std::size_t size, u8* data) const {
void Buffer::Download(std::size_t offset, std::size_t size, u8* data) {
const auto& staging = staging_pool.GetUnusedBuffer(size, true);
scheduler.RequestOutsideRenderPassOperationContext();
@ -110,7 +110,7 @@ void Buffer::Download(std::size_t offset, std::size_t size, u8* data) const {
}
void Buffer::CopyFrom(const Buffer& src, std::size_t src_offset, std::size_t dst_offset,
std::size_t size) const {
std::size_t size) {
scheduler.RequestOutsideRenderPassOperationContext();
const VkBuffer dst_buffer = Handle();

6
src/video_core/renderer_vulkan/vk_buffer_cache.h
View File

@ -29,12 +29,12 @@ public:
VKStagingBufferPool& staging_pool, VAddr cpu_addr, std::size_t size);
~Buffer();
void Upload(std::size_t offset, std::size_t size, const u8* data) const;
void Upload(std::size_t offset, std::size_t size, const u8* data);
void Download(std::size_t offset, std::size_t size, u8* data) const;
void Download(std::size_t offset, std::size_t size, u8* data);
void CopyFrom(const Buffer& src, std::size_t src_offset, std::size_t dst_offset,
std::size_t size) const;
std::size_t size);
VkBuffer Handle() const {
return *buffer.handle;