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35 #ifndef GMX_GPU_UTILS_MACROS_H
36 #define GMX_GPU_UTILS_MACROS_H
40 #include "gromacs/utility/basedefinitions.h" // for gmx_unused
42 /* These macros that let us define inlineable null implementations so
43 that non-GPU Gromacs can run with no overhead without conditionality
44 everywhere a GPU function is called. */
45 #define REAL_FUNC_QUALIFIER
46 #define REAL_FUNC_ARGUMENT(arg) arg
47 #define REAL_FUNC_TERM ;
48 #define REAL_FUNC_TERM_WITH_RETURN(arg) ;
50 #define NULL_FUNC_QUALIFIER gmx_unused static
51 #define NULL_FUNC_ARGUMENT(arg) arg gmx_unused
52 #define NULL_FUNC_TERM {}
53 #define NULL_FUNC_TERM_WITH_RETURN(arg) { return (arg); }
57 /* Doxygen build appreciates always having argument names, and doesn't
58 * care about duplicate function definitions. */
59 #define GPU_FUNC_QUALIFIER REAL_FUNC_QUALIFIER
60 #define GPU_FUNC_ARGUMENT REAL_FUNC_ARGUMENT
61 #define GPU_FUNC_TERM REAL_FUNC_TERM
62 #define GPU_FUNC_TERM_WITH_RETURN(arg) REAL_FUNC_TERM_WITH_RETURN(arg)
63 #define CUDA_FUNC_QUALIFIER REAL_FUNC_QUALIFIER
64 #define CUDA_FUNC_ARGUMENT REAL_FUNC_ARGUMENT
65 #define CUDA_FUNC_TERM REAL_FUNC_TERM
66 #define CUDA_FUNC_TERM_WITH_RETURN(arg) REAL_FUNC_TERM_WITH_RETURN(arg)
67 #define OPENCL_FUNC_QUALIFIER REAL_FUNC_QUALIFIER
68 #define OPENCL_FUNC_ARGUMENT REAL_FUNC_ARGUMENT
69 #define OPENCL_FUNC_TERM REAL_FUNC_TERM
70 #define OPENCL_FUNC_TERM_WITH_RETURN(arg) REAL_FUNC_TERM_WITH_RETURN(arg)
72 #elif GMX_GPU != GMX_GPU_NONE
74 /* GPU support is enabled, so these functions will have real code
75 * defined somewhere */
76 #define GPU_FUNC_QUALIFIER REAL_FUNC_QUALIFIER
77 #define GPU_FUNC_ARGUMENT REAL_FUNC_ARGUMENT
78 #define GPU_FUNC_TERM REAL_FUNC_TERM
79 #define GPU_FUNC_TERM_WITH_RETURN(arg) REAL_FUNC_TERM_WITH_RETURN(arg)
81 # if GMX_GPU == GMX_GPU_OPENCL
83 /* OpenCL support is enabled, so CUDA-specific functions need empty
84 * implementations, while OpenCL-specific functions will have real
85 * code defined somewhere. */
86 #define CUDA_FUNC_QUALIFIER NULL_FUNC_QUALIFIER
87 #define CUDA_FUNC_ARGUMENT NULL_FUNC_ARGUMENT
88 #define CUDA_FUNC_TERM NULL_FUNC_TERM
89 #define CUDA_FUNC_TERM_WITH_RETURN(arg) NULL_FUNC_TERM_WITH_RETURN(arg)
90 #define OPENCL_FUNC_QUALIFIER REAL_FUNC_QUALIFIER
91 #define OPENCL_FUNC_ARGUMENT REAL_FUNC_ARGUMENT
92 #define OPENCL_FUNC_TERM REAL_FUNC_TERM
93 #define OPENCL_FUNC_TERM_WITH_RETURN(arg) REAL_FUNC_TERM_WITH_RETURN(arg)
96 # if GMX_GPU == GMX_GPU_CUDA
98 /* CUDA support is enabled, so OpenCL-specific functions need empty
99 * implementations, while CUDA-specific functions will have real
100 * code defined somewhere. */
101 #define CUDA_FUNC_QUALIFIER REAL_FUNC_QUALIFIER
102 #define CUDA_FUNC_ARGUMENT REAL_FUNC_ARGUMENT
103 #define CUDA_FUNC_TERM REAL_FUNC_TERM
104 #define CUDA_FUNC_TERM_WITH_RETURN(arg) REAL_FUNC_TERM_WITH_RETURN(arg)
105 #define OPENCL_FUNC_QUALIFIER NULL_FUNC_QUALIFIER
106 #define OPENCL_FUNC_ARGUMENT NULL_FUNC_ARGUMENT
107 #define OPENCL_FUNC_TERM NULL_FUNC_TERM
108 #define OPENCL_FUNC_TERM_WITH_RETURN(arg) NULL_FUNC_TERM_WITH_RETURN(arg)
112 #elif GMX_GPU == GMX_GPU_NONE
114 /* No GPU support is configured, so none of these functions will have
115 * real definitions. */
116 #define GPU_FUNC_QUALIFIER NULL_FUNC_QUALIFIER
117 #define GPU_FUNC_ARGUMENT NULL_FUNC_ARGUMENT
118 #define GPU_FUNC_TERM NULL_FUNC_TERM
119 #define GPU_FUNC_TERM_WITH_RETURN(arg) NULL_FUNC_TERM_WITH_RETURN(arg)
120 #define CUDA_FUNC_QUALIFIER NULL_FUNC_QUALIFIER
121 #define CUDA_FUNC_ARGUMENT NULL_FUNC_ARGUMENT
122 #define CUDA_FUNC_TERM NULL_FUNC_TERM
123 #define CUDA_FUNC_TERM_WITH_RETURN(arg) NULL_FUNC_TERM_WITH_RETURN(arg)
124 #define OPENCL_FUNC_QUALIFIER NULL_FUNC_QUALIFIER
125 #define OPENCL_FUNC_ARGUMENT NULL_FUNC_ARGUMENT
126 #define OPENCL_FUNC_TERM NULL_FUNC_TERM
127 #define OPENCL_FUNC_TERM_WITH_RETURN(arg) NULL_FUNC_TERM_WITH_RETURN(arg)