cudaMappedMemory.h

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/*
 * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
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#ifndef __CUDA_MAPPED_MEMORY_H_
#define __CUDA_MAPPED_MEMORY_H_


#include "cudaUtility.h"


inline bool cudaAllocMapped( void** cpuPtr, void** gpuPtr, size_t size )
{
        if( !cpuPtr || !gpuPtr || size == 0 )
                return false;

        //CUDA(cudaSetDeviceFlags(cudaDeviceMapHost));

        if( CUDA_FAILED(cudaHostAlloc(cpuPtr, size, cudaHostAllocMapped)) )
                return false;

        if( CUDA_FAILED(cudaHostGetDevicePointer(gpuPtr, *cpuPtr, 0)) )
                return false;

        memset(*cpuPtr, 0, size);
        //printf(LOG_CUDA "cudaAllocMapped %zu bytes, CPU %p GPU %p\n", size, *cpuPtr, *gpuPtr);
        return true;
}


#endif