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Document unsafe versions and add BlockCopyUnsafe

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This commit is contained in:
Fernando Sahmkow 2019-04-16 10:11:35 -04:00
parent 6fc562a9aa
commit 06d1c5a991
3 changed files with 45 additions and 16 deletions
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18
src/video_core/memory_manager.cpp
View file

@ -199,7 +199,7 @@ const u8* MemoryManager::GetPointer(GPUVAddr addr) const {
return {};
}
void MemoryManager::ReadBlock(GPUVAddr src_addr, void* dest_buffer, std::size_t size) const {
void MemoryManager::ReadBlock(GPUVAddr src_addr, void* dest_buffer, const std::size_t size) const {
std::size_t remaining_size{size};
std::size_t page_index{src_addr >> page_bits};
std::size_t page_offset{src_addr & page_mask};
@ -226,7 +226,8 @@ void MemoryManager::ReadBlock(GPUVAddr src_addr, void* dest_buffer, std::size_t
}
}
void MemoryManager::ReadBlockUnsafe(GPUVAddr src_addr, void* dest_buffer, std::size_t size) const {
void MemoryManager::ReadBlockUnsafe(GPUVAddr src_addr, void* dest_buffer,
const std::size_t size) const {
std::size_t remaining_size{size};
std::size_t page_index{src_addr >> page_bits};
std::size_t page_offset{src_addr & page_mask};
@ -243,7 +244,7 @@ void MemoryManager::ReadBlockUnsafe(GPUVAddr src_addr, void* dest_buffer, std::s
}
}
void MemoryManager::WriteBlock(GPUVAddr dest_addr, const void* src_buffer, std::size_t size) {
void MemoryManager::WriteBlock(GPUVAddr dest_addr, const void* src_buffer, const std::size_t size) {
std::size_t remaining_size{size};
std::size_t page_index{dest_addr >> page_bits};
std::size_t page_offset{dest_addr & page_mask};
@ -270,7 +271,8 @@ void MemoryManager::WriteBlock(GPUVAddr dest_addr, const void* src_buffer, std::
}
}
void MemoryManager::WriteBlockUnsafe(GPUVAddr dest_addr, const void* src_buffer, std::size_t size) {
void MemoryManager::WriteBlockUnsafe(GPUVAddr dest_addr, const void* src_buffer,
const std::size_t size) {
std::size_t remaining_size{size};
std::size_t page_index{dest_addr >> page_bits};
std::size_t page_offset{dest_addr & page_mask};
@ -287,7 +289,7 @@ void MemoryManager::WriteBlockUnsafe(GPUVAddr dest_addr, const void* src_buffer,
}
}
void MemoryManager::CopyBlock(GPUVAddr dest_addr, GPUVAddr src_addr, std::size_t size) {
void MemoryManager::CopyBlock(GPUVAddr dest_addr, GPUVAddr src_addr, const std::size_t size) {
std::size_t remaining_size{size};
std::size_t page_index{src_addr >> page_bits};
std::size_t page_offset{src_addr & page_mask};
@ -315,6 +317,12 @@ void MemoryManager::CopyBlock(GPUVAddr dest_addr, GPUVAddr src_addr, std::size_t
}
}
void MemoryManager::CopyBlockUnsafe(GPUVAddr dest_addr, GPUVAddr src_addr, const std::size_t size) {
std::vector<u8> tmp_buffer(size);
ReadBlockUnsafe(src_addr, tmp_buffer.data(), size);
WriteBlockUnsafe(dest_addr, tmp_buffer.data(), size);
}
void MemoryManager::MapPages(GPUVAddr base, u64 size, u8* memory, Common::PageType type,
VAddr backing_addr) {
LOG_DEBUG(HW_GPU, "Mapping {} onto {:016X}-{:016X}", fmt::ptr(memory), base * page_size,

30
src/video_core/memory_manager.h
View file

@ -65,11 +65,31 @@ public:
u8* GetPointer(GPUVAddr addr);
const u8* GetPointer(GPUVAddr addr) const;
void ReadBlock(GPUVAddr src_addr, void* dest_buffer, std::size_t size) const;
void WriteBlock(GPUVAddr dest_addr, const void* src_buffer, std::size_t size);
void ReadBlockUnsafe(GPUVAddr src_addr, void* dest_buffer, std::size_t size) const;
void WriteBlockUnsafe(GPUVAddr dest_addr, const void* src_buffer, std::size_t size);
void CopyBlock(GPUVAddr dest_addr, GPUVAddr src_addr, std::size_t size);
/*
* ReadBlock and WriteBlock are full read and write operations over virtual
* GPU Memory. It's important to use these when GPU memory may not be continous
* in the Host Memory counterpart. Note: This functions cause Host GPU Memory
* Flushes and Invalidations, respectively to each operation.
*/
void ReadBlock(GPUVAddr src_addr, void* dest_buffer, const std::size_t size) const;
void WriteBlock(GPUVAddr dest_addr, const void* src_buffer, const std::size_t size);
void CopyBlock(GPUVAddr dest_addr, GPUVAddr src_addr, const std::size_t size);
/*
* ReadBlockUnsafe and WriteBlockUnsafe are special versions of ReadBlock and
* WriteBlock respectively. In this versions, no flushing or invalidation is actually
* done and their performance is similar to a memcpy. This functions can be used
* on either of this 2 scenarios instead of their safe counterpart:
* - Memory which is sure to never be represented in the Host GPU.
* - Memory Managed by a Cache Manager. Example: Texture Flushing should use
* WriteBlockUnsafe instead of WriteBlock since it shouldn't invalidate the texture
* being flushed.
*/
void ReadBlockUnsafe(GPUVAddr src_addr, void* dest_buffer, const std::size_t size) const;
void WriteBlockUnsafe(GPUVAddr dest_addr, const void* src_buffer, const std::size_t size);
void CopyBlockUnsafe(GPUVAddr dest_addr, GPUVAddr src_addr, const std::size_t size);
private:
using VMAMap = std::map<GPUVAddr, VirtualMemoryArea>;

13
src/video_core/renderer_opengl/gl_shader_cache.cpp
View file

@ -38,14 +38,15 @@ GPUVAddr GetShaderAddress(Maxwell::ShaderProgram program) {
}
/// Gets the shader program code from memory for the specified address
ProgramCode GetShaderCode(const GPUVAddr gpu_addr, const u8* host_ptr) {
auto& memory_manager{Core::System::GetInstance().GPU().MemoryManager()};
ProgramCode GetShaderCode(Tegra::MemoryManager& memory_manager, const GPUVAddr gpu_addr,
const u8* host_ptr) {
ProgramCode program_code(VideoCommon::Shader::MAX_PROGRAM_LENGTH);
ASSERT_OR_EXECUTE(host_ptr != nullptr, {
std::fill(program_code.begin(), program_code.end(), 0);
return program_code;
});
memory_manager.ReadBlockUnsafe(gpu_addr, program_code.data(), program_code.size() * sizeof(u64));
memory_manager.ReadBlockUnsafe(gpu_addr, program_code.data(),
program_code.size() * sizeof(u64));
return program_code;
}
@ -498,12 +499,12 @@ Shader ShaderCacheOpenGL::GetStageProgram(Maxwell::ShaderProgram program) {
if (!shader) {
// No shader found - create a new one
ProgramCode program_code{GetShaderCode(program_addr, host_ptr)};
ProgramCode program_code{GetShaderCode(memory_manager, program_addr, host_ptr)};
ProgramCode program_code_b;
if (program == Maxwell::ShaderProgram::VertexA) {
const GPUVAddr program_addr_b{GetShaderAddress(Maxwell::ShaderProgram::VertexB)};
program_code_b =
GetShaderCode(program_addr_b, memory_manager.GetPointer(program_addr_b));
program_code_b = GetShaderCode(memory_manager, program_addr_b,
memory_manager.GetPointer(program_addr_b));
}
const u64 unique_identifier = GetUniqueIdentifier(program, program_code, program_code_b);
const VAddr cpu_addr{*memory_manager.GpuToCpuAddress(program_addr)};