cuda_drvapi_dynlink.c

/*
 * Copyright 1993-2014 NVIDIA Corporation.  All rights reserved.
 *
 * NVIDIA Corporation and its licensors retain all intellectual property and
 * proprietary rights in and to this software and related documentation.
 * Any use, reproduction, disclosure, or distribution of this software
 * and related documentation without an express license agreement from
 * NVIDIA Corporation is strictly prohibited.
 *
 * Please refer to the applicable NVIDIA end user license agreement (EULA)
 * associated with this source code for terms and conditions that govern
 * your use of this NVIDIA software.
 *
 */

// With these flags defined, this source file will dynamically
// load the corresponding functions.  Disabled by default.
// #define CUDA_INIT_D3D9
// #define CUDA_INIT_D3D10
// #define CUDA_INIT_D3D11
// #define CUDA_INIT_OPENGL

#include "cuda_drvapi_dynlink.h"

#include <stdio.h>

tcuInit                    *_cuInit;
tcuDriverGetVersion        *cuDriverGetVersion;
tcuDeviceGet               *cuDeviceGet;
tcuDeviceGetCount          *cuDeviceGetCount;
tcuDeviceGetName           *cuDeviceGetName;
tcuDeviceComputeCapability *cuDeviceComputeCapability;
tcuDeviceTotalMem          *cuDeviceTotalMem;
tcuDeviceGetProperties     *cuDeviceGetProperties;
tcuDeviceGetAttribute      *cuDeviceGetAttribute;
tcuGetErrorString          *cuGetErrorString;
tcuCtxCreate               *cuCtxCreate;
tcuCtxDestroy              *cuCtxDestroy;
tcuCtxAttach               *cuCtxAttach;
tcuCtxDetach               *cuCtxDetach;
tcuCtxPushCurrent          *cuCtxPushCurrent;
tcuCtxPopCurrent           *cuCtxPopCurrent;
tcuCtxGetCurrent           *cuCtxGetCurrent;
tcuCtxSetCurrent           *cuCtxSetCurrent;
tcuCtxGetDevice            *cuCtxGetDevice;
tcuCtxSynchronize          *cuCtxSynchronize;
tcuModuleLoad              *cuModuleLoad;
tcuModuleLoadData          *cuModuleLoadData;
tcuModuleLoadDataEx        *cuModuleLoadDataEx;
tcuModuleLoadFatBinary     *cuModuleLoadFatBinary;
tcuModuleUnload            *cuModuleUnload;
tcuModuleGetFunction       *cuModuleGetFunction;
tcuModuleGetGlobal         *cuModuleGetGlobal;
tcuModuleGetTexRef         *cuModuleGetTexRef;
tcuModuleGetSurfRef        *cuModuleGetSurfRef;
tcuMemGetInfo              *cuMemGetInfo;
tcuMemAlloc                *cuMemAlloc;
tcuMemAllocPitch           *cuMemAllocPitch;
tcuMemFree                 *cuMemFree;
tcuMemGetAddressRange      *cuMemGetAddressRange;
tcuMemAllocHost            *cuMemAllocHost;
tcuMemFreeHost             *cuMemFreeHost;
tcuMemHostAlloc            *cuMemHostAlloc;
tcuMemHostGetFlags         *cuMemHostGetFlags;

tcuMemHostGetDevicePointer *cuMemHostGetDevicePointer;
tcuDeviceGetByPCIBusId     *cuDeviceGetByPCIBusId;
tcuDeviceGetPCIBusId       *cuDeviceGetPCIBusId;
tcuIpcGetEventHandle       *cuIpcGetEventHandle;
tcuIpcOpenEventHandle      *cuIpcOpenEventHandle;
tcuIpcGetMemHandle         *cuIpcGetMemHandle;
tcuIpcOpenMemHandle        *cuIpcOpenMemHandle;
tcuIpcCloseMemHandle       *cuIpcCloseMemHandle;

tcuMemHostRegister                   *cuMemHostRegister;
tcuMemHostUnregister                 *cuMemHostUnregister;
tcuMemcpyHtoD                        *cuMemcpyHtoD;
tcuMemcpyDtoH                        *cuMemcpyDtoH;
tcuMemcpyDtoD                        *cuMemcpyDtoD;
tcuMemcpyDtoA                        *cuMemcpyDtoA;
tcuMemcpyAtoD                        *cuMemcpyAtoD;
tcuMemcpyHtoA                        *cuMemcpyHtoA;
tcuMemcpyAtoH                        *cuMemcpyAtoH;
tcuMemcpyAtoA                        *cuMemcpyAtoA;
tcuMemcpy2D                          *cuMemcpy2D;
tcuMemcpy2DUnaligned                 *cuMemcpy2DUnaligned;
tcuMemcpy3D                          *cuMemcpy3D;
tcuMemcpyHtoDAsync                   *cuMemcpyHtoDAsync;
tcuMemcpyDtoHAsync                   *cuMemcpyDtoHAsync;
tcuMemcpyDtoDAsync                   *cuMemcpyDtoDAsync;
tcuMemcpyHtoAAsync                   *cuMemcpyHtoAAsync;
tcuMemcpyAtoHAsync                   *cuMemcpyAtoHAsync;
tcuMemcpy2DAsync                     *cuMemcpy2DAsync;
tcuMemcpy3DAsync                     *cuMemcpy3DAsync;
tcuMemcpy                            *cuMemcpy;
tcuMemcpyPeer                        *cuMemcpyPeer;
tcuMemsetD8                          *cuMemsetD8;
tcuMemsetD16                         *cuMemsetD16;
tcuMemsetD32                         *cuMemsetD32;
tcuMemsetD2D8                        *cuMemsetD2D8;
tcuMemsetD2D16                       *cuMemsetD2D16;
tcuMemsetD2D32                       *cuMemsetD2D32;
tcuFuncSetBlockShape                 *cuFuncSetBlockShape;
tcuFuncSetSharedSize                 *cuFuncSetSharedSize;
tcuFuncGetAttribute                  *cuFuncGetAttribute;
tcuFuncSetCacheConfig                *cuFuncSetCacheConfig;
tcuFuncSetSharedMemConfig            *cuFuncSetSharedMemConfig;
tcuLaunchKernel                      *cuLaunchKernel;
tcuArrayCreate                       *cuArrayCreate;
tcuArrayGetDescriptor                *cuArrayGetDescriptor;
tcuArrayDestroy                      *cuArrayDestroy;
tcuArray3DCreate                     *cuArray3DCreate;
tcuArray3DGetDescriptor              *cuArray3DGetDescriptor;
tcuTexRefCreate                      *cuTexRefCreate;
tcuTexRefDestroy                     *cuTexRefDestroy;
tcuTexRefSetArray                    *cuTexRefSetArray;
tcuTexRefSetAddress                  *cuTexRefSetAddress;
tcuTexRefSetAddress2D                *cuTexRefSetAddress2D;
tcuTexRefSetFormat                   *cuTexRefSetFormat;
tcuTexRefSetAddressMode              *cuTexRefSetAddressMode;
tcuTexRefSetFilterMode               *cuTexRefSetFilterMode;
tcuTexRefSetFlags                    *cuTexRefSetFlags;
tcuTexRefGetAddress                  *cuTexRefGetAddress;
tcuTexRefGetArray                    *cuTexRefGetArray;
tcuTexRefGetAddressMode              *cuTexRefGetAddressMode;
tcuTexRefGetFilterMode               *cuTexRefGetFilterMode;
tcuTexRefGetFormat                   *cuTexRefGetFormat;
tcuTexRefGetFlags                    *cuTexRefGetFlags;
tcuSurfRefSetArray                   *cuSurfRefSetArray;
tcuSurfRefGetArray                   *cuSurfRefGetArray;
tcuParamSetSize                      *cuParamSetSize;
tcuParamSeti                         *cuParamSeti;
tcuParamSetf                         *cuParamSetf;
tcuParamSetv                         *cuParamSetv;
tcuParamSetTexRef                    *cuParamSetTexRef;
tcuLaunch                            *cuLaunch;
tcuLaunchGrid                        *cuLaunchGrid;
tcuLaunchGridAsync                   *cuLaunchGridAsync;
tcuEventCreate                       *cuEventCreate;
tcuEventRecord                       *cuEventRecord;
tcuEventQuery                        *cuEventQuery;
tcuEventSynchronize                  *cuEventSynchronize;
tcuEventDestroy                      *cuEventDestroy;
tcuEventElapsedTime                  *cuEventElapsedTime;
tcuStreamCreate                      *cuStreamCreate;
tcuStreamWaitEvent                   *cuStreamWaitEvent;
tcuStreamAddCallback                 *cuStreamAddCallback;
tcuStreamQuery                       *cuStreamQuery;
tcuStreamSynchronize                 *cuStreamSynchronize;
tcuStreamDestroy                     *cuStreamDestroy;
tcuGraphicsUnregisterResource        *cuGraphicsUnregisterResource;
tcuGraphicsSubResourceGetMappedArray *cuGraphicsSubResourceGetMappedArray;
tcuGraphicsResourceGetMappedPointer  *cuGraphicsResourceGetMappedPointer;
tcuGraphicsResourceSetMapFlags       *cuGraphicsResourceSetMapFlags;
tcuGraphicsMapResources              *cuGraphicsMapResources;
tcuGraphicsUnmapResources            *cuGraphicsUnmapResources;
tcuGetExportTable                    *cuGetExportTable;
tcuCtxSetLimit                       *cuCtxSetLimit;
tcuCtxGetLimit                       *cuCtxGetLimit;
tcuCtxGetCacheConfig                 *cuCtxGetCacheConfig;
tcuCtxSetCacheConfig                 *cuCtxSetCacheConfig;
tcuCtxGetSharedMemConfig             *cuCtxGetSharedMemConfig;
tcuCtxSetSharedMemConfig             *cuCtxSetSharedMemConfig;
tcuCtxGetApiVersion                  *cuCtxGetApiVersion;

tcuMipmappedArrayCreate   *cuMipmappedArrayCreate;
tcuMipmappedArrayGetLevel *cuMipmappedArrayGetLevel;
tcuMipmappedArrayDestroy  *cuMipmappedArrayDestroy;

tcuProfilerStop *cuProfilerStop;

#ifdef CUDA_INIT_D3D9
// D3D9/CUDA interop (CUDA 1.x compatible API). These functions
// are deprecated; please use the ones below
tcuD3D9Begin                  *cuD3D9Begin;
tcuD3D9End                    *cuD3DEnd;
tcuD3D9RegisterVertexBuffer   *cuD3D9RegisterVertexBuffer;
tcuD3D9MapVertexBuffer        *cuD3D9MapVertexBuffer;
tcuD3D9UnmapVertexBuffer      *cuD3D9UnmapVertexBuffer;
tcuD3D9UnregisterVertexBuffer *cuD3D9UnregisterVertexBuffer;

// D3D9/CUDA interop (CUDA 2.x compatible)
tcuD3D9GetDirect3DDevice            *cuD3D9GetDirect3DDevice;
tcuD3D9RegisterResource             *cuD3D9RegisterResource;
tcuD3D9UnregisterResource           *cuD3D9UnregisterResource;
tcuD3D9MapResources                 *cuD3D9MapResources;
tcuD3D9UnmapResources               *cuD3D9UnmapResources;
tcuD3D9ResourceSetMapFlags          *cuD3D9ResourceSetMapFlags;
tcuD3D9ResourceGetSurfaceDimensions *cuD3D9ResourceGetSurfaceDimensions;
tcuD3D9ResourceGetMappedArray       *cuD3D9ResourceGetMappedArray;
tcuD3D9ResourceGetMappedPointer     *cuD3D9ResourceGetMappedPointer;
tcuD3D9ResourceGetMappedSize        *cuD3D9ResourceGetMappedSize;
tcuD3D9ResourceGetMappedPitch       *cuD3D9ResourceGetMappedPitch;

// D3D9/CUDA interop (CUDA 2.0+)
tcuD3D9GetDevice                *cuD3D9GetDevice;
tcuD3D9CtxCreate                *cuD3D9CtxCreate;
tcuGraphicsD3D9RegisterResource *cuGraphicsD3D9RegisterResource;
#endif

#ifdef CUDA_INIT_D3D10
// D3D10/CUDA interop (CUDA 3.0+)
tcuD3D10GetDevice                *cuD3D10GetDevice;
tcuD3D10CtxCreate                *cuD3D10CtxCreate;
tcuGraphicsD3D10RegisterResource *cuGraphicsD3D10RegisterResource;
#endif


#ifdef CUDA_INIT_D3D11
// D3D11/CUDA interop (CUDA 3.0+)
tcuD3D11GetDevice                *cuD3D11GetDevice;
tcuD3D11CtxCreate                *cuD3D11CtxCreate;
tcuGraphicsD3D11RegisterResource *cuGraphicsD3D11RegisterResource;
#endif

// GL/CUDA interop
#ifdef CUDA_INIT_OPENGL
tcuGLCtxCreate              *cuGLCtxCreate;
tcuGraphicsGLRegisterBuffer *cuGraphicsGLRegisterBuffer;
tcuGraphicsGLRegisterImage  *cuGraphicsGLRegisterImage;
#if defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
tcuWGLGetDevice *cuWGLGetDevice;
#endif
#endif

#define STRINGIFY(X) #X

#if defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
#include <Windows.h>

#ifdef UNICODE
static LPCWSTR __CudaLibName = L"nvcuda.dll";
#else
static LPCSTR __CudaLibName = "nvcuda.dll";
#endif

typedef HMODULE CUDADRIVER;

static CUresult LOAD_LIBRARY(CUDADRIVER *pInstance)
{
    *pInstance = LoadLibrary(__CudaLibName);

    if (*pInstance == NULL) {
        printf("LoadLibrary \"%s\" failed!\n", __CudaLibName);
        exit(EXIT_FAILURE);
    }

    return CUDA_SUCCESS;
}

CUresult GET_DRIVER_HANDLE(CUDADRIVER *pInstance)
{
    *pInstance = GetModuleHandle(__CudaLibName);
    if (*pInstance) {
        return CUDA_SUCCESS;
    }
    else {
        return CUDA_ERROR_UNKNOWN;
    }
}

#define GET_PROC_EX(name, alias, required)                                               \
    alias = (t##name *)GetProcAddress(CudaDrvLib, #name);                                \
    if (alias == NULL && required) {                                                     \
        printf("Failed to find required function \"%s\" in %s\n", #name, __CudaLibName); \
        return CUDA_ERROR_UNKNOWN;                                                       \
    }

#define GET_PROC_EX_V2(name, alias, required)                                                           \
    alias = (t##name *)GetProcAddress(CudaDrvLib, STRINGIFY(name##_v2));                                \
    if (alias == NULL && required) {                                                                    \
        printf("Failed to find required function \"%s\" in %s\n", STRINGIFY(name##_v2), __CudaLibName); \
        return CUDA_ERROR_UNKNOWN;                                                                      \
    }

#define GET_PROC_EX_V3(name, alias, required)                                                           \
    alias = (t##name *)GetProcAddress(CudaDrvLib, STRINGIFY(name##_v3));                                \
    if (alias == NULL && required) {                                                                    \
        printf("Failed to find required function \"%s\" in %s\n", STRINGIFY(name##_v3), __CudaLibName); \
        return CUDA_ERROR_UNKNOWN;                                                                      \
    }

#define GET_PROC_ERROR_FUNCTIONS(name, alias, required)                               \
    alias = (t##name *)GetProcAddress(CudaDrvLib, #name);                             \
    if (alias == NULL && required) {                                                  \
        printf("Failed to find error function \"%s\" in %s\n", #name, __CudaLibName); \
        exit(EXIT_FAILURE);                                                           \
    }

#elif defined(__unix__) || defined(__QNX__) || defined(__APPLE__) || defined(__MACOSX)

#include <dlfcn.h>

#if defined(__APPLE__) || defined(__MACOSX)
static char __CudaLibName[] = "/usr/local/cuda/lib/libcuda.dylib";
#elif defined(__ANDROID__)
#if defined(__aarch64__)
static char __CudaLibName[] = "/system/vendor/lib64/libcuda.so";
#elif defined(__arm__)
static char __CudaLibName[] = "/system/vendor/lib/libcuda.so";
#endif
#else
static char __CudaLibName[] = "libcuda.so.1";
#endif

typedef void *CUDADRIVER;

static CUresult LOAD_LIBRARY(CUDADRIVER *pInstance)
{
    *pInstance = dlopen(__CudaLibName, RTLD_NOW);

    if (*pInstance == NULL) {
        printf("dlopen \"%s\" failed!\n", __CudaLibName);
        exit(EXIT_FAILURE);
    }

    return CUDA_SUCCESS;
}

CUresult GET_DRIVER_HANDLE(CUDADRIVER *pInstance)
{
    *pInstance = dlopen(__CudaLibName, RTLD_LAZY);
    if (*pInstance) {
        return CUDA_SUCCESS;
    }
    else {
        return CUDA_ERROR_UNKNOWN;
    }
}

#define GET_PROC_EX(name, alias, required)                                               \
    alias = (t##name *)dlsym(CudaDrvLib, #name);                                         \
    if (alias == NULL && required) {                                                     \
        printf("Failed to find required function \"%s\" in %s\n", #name, __CudaLibName); \
        return CUDA_ERROR_UNKNOWN;                                                       \
    }

#define GET_PROC_EX_V2(name, alias, required)                                                           \
    alias = (t##name *)dlsym(CudaDrvLib, STRINGIFY(name##_v2));                                         \
    if (alias == NULL && required) {                                                                    \
        printf("Failed to find required function \"%s\" in %s\n", STRINGIFY(name##_v2), __CudaLibName); \
        return CUDA_ERROR_UNKNOWN;                                                                      \
    }

#define GET_PROC_EX_V3(name, alias, required)                                                           \
    alias = (t##name *)dlsym(CudaDrvLib, STRINGIFY(name##_v3));                                         \
    if (alias == NULL && required) {                                                                    \
        printf("Failed to find required function \"%s\" in %s\n", STRINGIFY(name##_v3), __CudaLibName); \
        return CUDA_ERROR_UNKNOWN;                                                                      \
    }

#define GET_PROC_ERROR_FUNCTIONS(name, alias, required)                               \
    alias = (t##name *)dlsym(CudaDrvLib, #name);                                      \
    if (alias == NULL && required) {                                                  \
        printf("Failed to find error function \"%s\" in %s\n", #name, __CudaLibName); \
        exit(EXIT_FAILURE);                                                           \
    }

#else
#error unsupported platform
#endif

#define CHECKED_CALL(call)            \
    do {                              \
        CUresult result = (call);     \
        if (CUDA_SUCCESS != result) { \
            return result;            \
        }                             \
    } while (0)

#define GET_PROC_REQUIRED(name) GET_PROC_EX(name, name, 1)
#define GET_PROC_OPTIONAL(name) GET_PROC_EX(name, name, 0)
#define GET_PROC(name)          GET_PROC_REQUIRED(name)
#define GET_PROC_V2(name)       GET_PROC_EX_V2(name, name, 1)
#define GET_PROC_V3(name)       GET_PROC_EX_V3(name, name, 1)

CUresult INIT_ERROR_FUNCTIONS(void)
{
    CUDADRIVER CudaDrvLib;
    CUresult   result = CUDA_SUCCESS;
    result            = GET_DRIVER_HANDLE(&CudaDrvLib);
    GET_PROC_ERROR_FUNCTIONS(cuGetErrorString, cuGetErrorString, 1);
    return result;
}

CUresult CUDAAPI cuInit(unsigned int Flags, int cudaVersion)
{
    CUDADRIVER CudaDrvLib;
    int        driverVer = 1000;
    CHECKED_CALL(LOAD_LIBRARY(&CudaDrvLib));

    // cuInit is required; alias it to _cuInit
    GET_PROC_EX(cuInit, _cuInit, 1);
    CHECKED_CALL(_cuInit(Flags));

    // available since 2.2. if not present, version 1.0 is assumed
    GET_PROC_OPTIONAL(cuDriverGetVersion);

    if (cuDriverGetVersion) {
        CHECKED_CALL(cuDriverGetVersion(&driverVer));
    }

    // fetch all function pointers
    GET_PROC(cuDeviceGet);
    GET_PROC(cuDeviceGetCount);
    GET_PROC(cuDeviceGetName);
    GET_PROC(cuDeviceComputeCapability);
    GET_PROC(cuDeviceGetProperties);
    GET_PROC(cuDeviceGetAttribute);
    GET_PROC(cuGetErrorString);
    GET_PROC(cuCtxDestroy);
    GET_PROC(cuCtxAttach);
    GET_PROC(cuCtxDetach);
    GET_PROC(cuCtxPushCurrent);
    GET_PROC(cuCtxPopCurrent);
    GET_PROC(cuCtxGetDevice);
    GET_PROC(cuCtxSynchronize);
    GET_PROC(cuCtxSetLimit);
    GET_PROC(cuCtxGetCacheConfig);
    GET_PROC(cuCtxSetCacheConfig);
    GET_PROC(cuCtxGetApiVersion);
    GET_PROC(cuModuleLoad);
    GET_PROC(cuModuleLoadData);
    GET_PROC(cuModuleUnload);
    GET_PROC(cuModuleGetFunction);
    GET_PROC(cuModuleGetTexRef);
    GET_PROC(cuMemFreeHost);
    GET_PROC(cuMemHostAlloc);
    GET_PROC(cuFuncSetBlockShape);
    GET_PROC(cuFuncSetSharedSize);
    GET_PROC(cuFuncGetAttribute);
    GET_PROC(cuArrayDestroy);
    GET_PROC(cuTexRefCreate);
    GET_PROC(cuTexRefDestroy);
    GET_PROC(cuTexRefSetArray);
    GET_PROC(cuTexRefSetFormat);
    GET_PROC(cuTexRefSetAddressMode);
    GET_PROC(cuTexRefSetFilterMode);
    GET_PROC(cuTexRefSetFlags);
    GET_PROC(cuTexRefGetArray);
    GET_PROC(cuTexRefGetAddressMode);
    GET_PROC(cuTexRefGetFilterMode);
    GET_PROC(cuTexRefGetFormat);
    GET_PROC(cuTexRefGetFlags);
    GET_PROC(cuParamSetSize);
    GET_PROC(cuParamSeti);
    GET_PROC(cuParamSetf);
    GET_PROC(cuParamSetv);
    GET_PROC(cuParamSetTexRef);
    GET_PROC(cuLaunch);
    GET_PROC(cuLaunchGrid);
    GET_PROC(cuLaunchGridAsync);
    GET_PROC(cuEventCreate);
    GET_PROC(cuEventRecord);
    GET_PROC(cuEventQuery);
    GET_PROC(cuEventSynchronize);
    GET_PROC(cuEventDestroy);
    GET_PROC(cuEventElapsedTime);
    GET_PROC(cuStreamCreate);
    GET_PROC(cuStreamWaitEvent);
    GET_PROC(cuStreamAddCallback);
    GET_PROC(cuStreamQuery);
    GET_PROC(cuStreamSynchronize);
    GET_PROC(cuStreamDestroy);

    // These are CUDA 5.0 new functions
    if (driverVer >= 5000) {
        GET_PROC(cuMipmappedArrayCreate);
        GET_PROC(cuMipmappedArrayDestroy);
        GET_PROC(cuMipmappedArrayGetLevel);
    }

    // These are CUDA 4.2 new functions
    if (driverVer >= 4020) {
        GET_PROC(cuFuncSetSharedMemConfig);
        GET_PROC(cuCtxGetSharedMemConfig);
        GET_PROC(cuCtxSetSharedMemConfig);
    }

    // These are CUDA 4.1 new functions
    if (cudaVersion >= 4010 && __CUDA_API_VERSION >= 4010) {
        GET_PROC(cuDeviceGetByPCIBusId);
        GET_PROC(cuDeviceGetPCIBusId);
        GET_PROC(cuIpcGetEventHandle);
        GET_PROC(cuIpcOpenEventHandle);
        GET_PROC(cuIpcGetMemHandle);
        GET_PROC(cuIpcOpenMemHandle);
        GET_PROC(cuIpcCloseMemHandle);
    }

    // These could be _v2 interfaces
    if (cudaVersion >= 4000 && __CUDA_API_VERSION >= 4000) {
        GET_PROC_V2(cuCtxDestroy);
        GET_PROC_V2(cuCtxPopCurrent);
        GET_PROC_V2(cuCtxPushCurrent);
        GET_PROC_V2(cuStreamDestroy);
        GET_PROC_V2(cuEventDestroy);
    }

    if (cudaVersion >= 3020 && __CUDA_API_VERSION >= 3020) {
        GET_PROC_V2(cuDeviceTotalMem);
        GET_PROC_V2(cuCtxCreate);
        GET_PROC_V2(cuModuleGetGlobal);
        GET_PROC_V2(cuMemGetInfo);
        GET_PROC_V2(cuMemAlloc);
        GET_PROC_V2(cuMemAllocPitch);
        GET_PROC_V2(cuMemFree);
        GET_PROC_V2(cuMemGetAddressRange);
        GET_PROC_V2(cuMemAllocHost);
        GET_PROC_V2(cuMemHostGetDevicePointer);
        GET_PROC_V2(cuMemcpyHtoD);
        GET_PROC_V2(cuMemcpyDtoH);
        GET_PROC_V2(cuMemcpyDtoD);
        GET_PROC_V2(cuMemcpyDtoA);
        GET_PROC_V2(cuMemcpyAtoD);
        GET_PROC_V2(cuMemcpyHtoA);
        GET_PROC_V2(cuMemcpyAtoH);
        GET_PROC_V2(cuMemcpyAtoA);
        GET_PROC_V2(cuMemcpy2D);
        GET_PROC_V2(cuMemcpy2DUnaligned);
        GET_PROC_V2(cuMemcpy3D);
        GET_PROC_V2(cuMemcpyHtoDAsync);
        GET_PROC_V2(cuMemcpyDtoHAsync);
        GET_PROC_V2(cuMemcpyHtoAAsync);
        GET_PROC_V2(cuMemcpyAtoHAsync);
        GET_PROC_V2(cuMemcpy2DAsync);
        GET_PROC_V2(cuMemcpy3DAsync);
        GET_PROC_V2(cuMemsetD8);
        GET_PROC_V2(cuMemsetD16);
        GET_PROC_V2(cuMemsetD32);
        GET_PROC_V2(cuMemsetD2D8);
        GET_PROC_V2(cuMemsetD2D16);
        GET_PROC_V2(cuMemsetD2D32);
        GET_PROC_V2(cuArrayCreate);
        GET_PROC_V2(cuArrayGetDescriptor);
        GET_PROC_V2(cuArray3DCreate);
        GET_PROC_V2(cuArray3DGetDescriptor);
        GET_PROC_V2(cuTexRefSetAddress);
        GET_PROC_V2(cuTexRefGetAddress);

        if (cudaVersion >= 4010 && __CUDA_API_VERSION >= 4010) {
            GET_PROC_V3(cuTexRefSetAddress2D);
        }
        else {
            GET_PROC_V2(cuTexRefSetAddress2D);
        }
    }
    else {
        // versions earlier than 3020
        GET_PROC(cuDeviceTotalMem);
        GET_PROC(cuCtxCreate);
        GET_PROC(cuModuleGetGlobal);
        GET_PROC(cuMemGetInfo);
        GET_PROC(cuMemAlloc);
        GET_PROC(cuMemAllocPitch);
        GET_PROC(cuMemFree);
        GET_PROC(cuMemGetAddressRange);
        GET_PROC(cuMemAllocHost);
        GET_PROC(cuMemHostGetDevicePointer);
        GET_PROC(cuMemcpyHtoD);
        GET_PROC(cuMemcpyDtoH);
        GET_PROC(cuMemcpyDtoD);
        GET_PROC(cuMemcpyDtoA);
        GET_PROC(cuMemcpyAtoD);
        GET_PROC(cuMemcpyHtoA);
        GET_PROC(cuMemcpyAtoH);
        GET_PROC(cuMemcpyAtoA);
        GET_PROC(cuMemcpy2D);
        GET_PROC(cuMemcpy2DUnaligned);
        GET_PROC(cuMemcpy3D);
        GET_PROC(cuMemcpyHtoDAsync);
        GET_PROC(cuMemcpyDtoHAsync);
        GET_PROC(cuMemcpyHtoAAsync);
        GET_PROC(cuMemcpyAtoHAsync);
        GET_PROC(cuMemcpy2DAsync);
        GET_PROC(cuMemcpy3DAsync);
        GET_PROC(cuMemsetD8);
        GET_PROC(cuMemsetD16);
        GET_PROC(cuMemsetD32);
        GET_PROC(cuMemsetD2D8);
        GET_PROC(cuMemsetD2D16);
        GET_PROC(cuMemsetD2D32);
        GET_PROC(cuArrayCreate);
        GET_PROC(cuArrayGetDescriptor);
        GET_PROC(cuArray3DCreate);
        GET_PROC(cuArray3DGetDescriptor);
        GET_PROC(cuTexRefSetAddress);
        GET_PROC(cuTexRefSetAddress2D);
        GET_PROC(cuTexRefGetAddress);
    }

    // The following functions are specific to CUDA versions
    if (driverVer >= 4000) {
        GET_PROC(cuCtxSetCurrent);
        GET_PROC(cuCtxGetCurrent);
        GET_PROC(cuMemHostRegister);
        GET_PROC(cuMemHostUnregister);
        GET_PROC(cuMemcpy);
        GET_PROC(cuMemcpyPeer);
        GET_PROC(cuLaunchKernel);
        GET_PROC(cuProfilerStop);
    }

    if (driverVer >= 3010) {
        GET_PROC(cuModuleGetSurfRef);
        GET_PROC(cuSurfRefSetArray);
        GET_PROC(cuSurfRefGetArray);
        GET_PROC(cuCtxSetLimit);
        GET_PROC(cuCtxGetLimit);
    }

    if (driverVer >= 3000) {
        GET_PROC(cuMemcpyDtoDAsync);
        GET_PROC(cuFuncSetCacheConfig);
#ifdef CUDA_INIT_D3D11
        GET_PROC(cuD3D11GetDevice);
        GET_PROC(cuD3D11CtxCreate);
        GET_PROC(cuGraphicsD3D11RegisterResource);
#endif
        GET_PROC(cuGraphicsUnregisterResource);
        GET_PROC(cuGraphicsSubResourceGetMappedArray);

        if (cudaVersion >= 3020 && __CUDA_API_VERSION >= 3020) {
            GET_PROC_V2(cuGraphicsResourceGetMappedPointer);
        }
        else {
            GET_PROC(cuGraphicsResourceGetMappedPointer);
        }

        GET_PROC(cuGraphicsResourceSetMapFlags);
        GET_PROC(cuGraphicsMapResources);
        GET_PROC(cuGraphicsUnmapResources);
        GET_PROC(cuGetExportTable);
    }

    if (driverVer >= 2030) {
        GET_PROC(cuMemHostGetFlags);
#ifdef CUDA_INIT_D3D10
        GET_PROC(cuD3D10GetDevice);
        GET_PROC(cuD3D10CtxCreate);
        GET_PROC(cuGraphicsD3D10RegisterResource);
#endif
#ifdef CUDA_INIT_OPENGL
        GET_PROC(cuGraphicsGLRegisterBuffer);
        GET_PROC(cuGraphicsGLRegisterImage);
#endif
    }

    if (driverVer >= 2010) {
        GET_PROC(cuModuleLoadDataEx);
        GET_PROC(cuModuleLoadFatBinary);
#ifdef CUDA_INIT_OPENGL
        GET_PROC(cuGLCtxCreate);
        GET_PROC(cuGraphicsGLRegisterBuffer);
        GET_PROC(cuGraphicsGLRegisterImage);
#ifdef WIN32
        GET_PROC(cuWGLGetDevice);
#endif
#endif
#ifdef CUDA_INIT_D3D9
        GET_PROC(cuD3D9GetDevice);
        GET_PROC(cuD3D9CtxCreate);
        GET_PROC(cuGraphicsD3D9RegisterResource);
#endif
    }
    return CUDA_SUCCESS;
}