MVPGPU-Sim Architecture Refactoring Design Principles

基本原则

类的实现和声明分开在cpp和hpp文件中，便于复用
模块化，将相关功能单元进行模块化设计
每个模块以动态链接库的形式生成
用CMakeLists.txt构建库或者应用
对硬件的访问需在cycle()中完成，比如ldst

可编程部分与固定管线的交互设计

方案一 将固定管线部分的实现直接放到整体GPU的框架下，完全按照GPU的设计思路
- 编译问题较麻烦
方案二 将固定管线部分单独放置，GPU框架下再调用固定管线的实现
- 编译问题好解决
- 可独立为模块进行release

构建原则

以动态链接库的形式为主，各模块构建为独立的动态链接库so
用CmakeLists.txt构建(主要针对新增或重构模块)

当前的构建结构

libOpenCL.so

$(LIBS)
- driver
- gpu
  - driver
    - driver/cuda_sim
  - gpu_uarch
    - driver
    - gpu/gpu_uarch
    - gpu/gpu_uarch/mvp_core
  - $(INTERSIM)
- $(INTERSIM)
  - driver
  - gpu_uarch
- opencllib
  - driver
  - api/libopencl

期望的构建结构

libOpenGL.so

$(LIBS)
- libdriver.so
- libgpu.so
  - libuarch.so
  - libgraphics.so
  - libgpuwattch.so
  - libintersim2.so
  - libhardwaremodel.so

动态库模板

$(SIM_LIB_DIR)/libOpenCL.so: makedirs $(LIBS) libopencl g++ -shared -Wl, -soname, libOpenCL.so \
                             $(MCPAT) \
                             $(SIM_OBJ_FILES_DIR)/libopencl/*.o \
                             -o $(SIM_LIB_DIR)/libOpenCL.so

CMakeLists.txt模板

cmake_minimum_required(VERSION 3.10)
SET(CMAKE_C_COMPILER "/usr/bin/gcc-9")
SET(CMAKE_CXX_COMPILER "/usr/bin/g++-9")

project(Graphic)

find_package(OpenCV REQUIRED)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_FLAGS   "-g") 
set(CMAKE_CXX_FLAGS_DEBUG   "-O0" ) 
set(CMAKE_CXX_FLAGS_RELEASE "-O2 -DNDEBUG " ) 

include_directories(/usr/local/include/opencv4 include texture rast pa rop)
include_directories($ENV{GPGPUSIM_ROOT}/gpu $ENV{GPGPUSIM_ROOT} $ENV{GPGPUSIM_ROOT}/include 
                    $ENV{CUDA_INSTALL_PATH}/include $ENV{GPGPUSIM_ROOT}/api)

link_directories($ENV{GPGPUSIM_ROOT}/lib/gcc-5.3.1/cuda-11000/debug)

add_library(Graphic SHARED models/OBJ_Loader.cpp pa/Primitive_assemble.hpp pa/Primitive_assemble.cpp 
            rast/Rasterizer.cpp include/global.hpp Triangle.hpp Triangle.cpp texture/Texture.cpp 
            rop/Render_output.hpp rop/Render_output.cpp include/Shader.hpp include/OBJ_Loader.h gpuc.cpp)

target_link_libraries(Graphic ${OpenCV_LIBRARIES} OpenCL) 

#message(${OpenCV_LIBRARIES})
message($ENV{GPGPUSIM_ROOT}/include)

add_custom_command( TARGET Graphic
                    POST_BUILD
                    COMMAND ${CMAKE_COMMAND} -E copy ./libGraphic.so $(GPGPUSIM_ROOT)/lib/libGraphic.so 
)