move gpu module to top level directory

fpga/.gitmodules

@@ -5,7 +5,7 @@
 	path = thirdparty/libxil
 	url = https://git.rwth-aachen.de/acs/public/villas/libxil.git
 [submodule "lib/gpu/gdrcopy"]
-	path = lib/gpu/gdrcopy
+	path = gpu/thirdparty/gdrcopy
 	url = https://github.com/daniel-k/gdrcopy.git
 [submodule "thirdparty/udmabuf"]
 	path = thirdparty/udmabuf

fpga/CMakeLists.txt

@@ -33,6 +33,12 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Werror")
 include(CheckLanguage)
 check_language(CUDA)
 
+if(CMAKE_CUDA_COMPILER)
+	add_subdirectory(gpu)
+else()
+	message("No CUDA support, not building GPU library")
+endif()
+
 include_directories(thirdparty/CLI11)
 include_directories(thirdparty/rang)
 

fpga/gpu/CMakeLists.txt

@@ -27,22 +27,35 @@ project(villas-gpu
 	DESCRIPTION "VILLASgpu"
 	LANGUAGES C CXX CUDA)
 
-add_subdirectory(gdrcopy)
+add_subdirectory(thirdparty/gdrcopy)
 
-add_library(villas-gpu SHARED gpu.cpp kernels.cu)
+add_library(villas-gpu
+	SHARED
+		src/gpu.cpp
+		src/kernels.cu
+)
 
 target_compile_options(villas-gpu PRIVATE -g)
 
-set_source_files_properties(gpu.cpp PROPERTIES
-	LANGUAGE CUDA)
+set_source_files_properties(src/gpu.cpp PROPERTIES
+	LANGUAGE CUDA
+)
 
-target_include_directories(villas-gpu PRIVATE /opt/cuda/include)
+target_include_directories(villas-gpu
+	PRIVATE
+		/opt/cuda/include
+)
 
 target_link_libraries(villas-gpu
-	PUBLIC villas-common gdrapi cuda)
+	PUBLIC
+		villas-common
+		gdrapi
+		cuda
+)
 
 target_include_directories(villas-gpu
 	PUBLIC
-	    ${CMAKE_CURRENT_LIST_DIR}/include
+		${CMAKE_CURRENT_LIST_DIR}/include
 	PRIVATE
-	    ${CMAKE_CURRENT_LIST_DIR})
+		${CMAKE_CURRENT_LIST_DIR}
+)

fpga/gpu/src/kernels.cu

@@ -24,11 +24,12 @@
  #include <stdio.h>
 
 #include <villas/gpu.hpp>
-#include "kernels.hpp"
 
-#include "cuda_runtime.h"
+#include <cuda_runtime.h>
 #include <cuda.h>
 
+#include "kernels.hpp"
+
 namespace villas {
 namespace gpu {
 

fpga/lib/CMakeLists.txt

@@ -55,13 +55,6 @@ add_library(villas-fpga SHARED ${SOURCES})
 
 target_link_libraries(villas-fpga PUBLIC villas-common)
 
-if(CMAKE_CUDA_COMPILER)
-	add_subdirectory(gpu)
-	target_link_libraries(villas-fpga PUBLIC villas-gpu)
-else()
-	message("No CUDA support, not building GPU library")
-endif()
-
 target_compile_definitions(villas-fpga PRIVATE
 	BUILDID=\"abc\"
 	_GNU_SOURCE
@@ -83,6 +76,10 @@ target_link_libraries(villas-fpga PUBLIC
 	villas-common
 )
 
+if(CMAKE_CUDA_COMPILER)
+	target_link_libraries(villas-fpga PUBLIC villas-gpu)
+endif()
+
 include(GNUInstallDirs)
 
 install(TARGETS villas-fpga