rocm-systems/tests/src/kernel/hipTestConstant.cpp

/*
Copyright (c) 2015-2016 Advanced Micro Devices, Inc. All rights reserved.
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The above copyright notice and this permission notice shall be included in
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*/

/* HIT_START
 * BUILD: %t %s ../test_common.cpp
 * RUN: %t
 * HIT_END
 */

#include<hip/hip_runtime.h>
#include<hip/hip_runtime_api.h>
#include<iostream>

#define HIP_ASSERT(status) \
    assert(status == hipSuccess)

#define LEN 512
#define SIZE 2048

__constant__ int Value[LEN];

__global__ void Get(hipLaunchParm lp, int *Ad)
{
    int tid = hipThreadIdx_x + hipBlockIdx_x * hipBlockDim_x;
    Ad[tid] = Value[tid];
}

int main()
{
    int *A, *B, *Ad;
    A = new int[LEN];
    B = new int[LEN];
    for(unsigned i=0;i<LEN;i++)
    {
        A[i] = -1*i;
        B[i] = 0;
    }

    HIP_ASSERT(hipMalloc((void**)&Ad, SIZE));

    HIP_ASSERT(hipMemcpyToSymbol(HIP_SYMBOL(Value), A, SIZE, 0, hipMemcpyHostToDevice));
    hipLaunchKernel(Get, dim3(1,1,1), dim3(LEN,1,1), 0, 0, Ad);
    HIP_ASSERT(hipMemcpy(B, Ad, SIZE, hipMemcpyDeviceToHost));

    for(unsigned i=0;i<LEN;i++)
    {
        assert(A[i] == B[i]);
    }
}