/*
Copyright (c) 2020 - 2021 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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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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*/

/* HIT_START
 * BUILD: %t %s ../../test_common.cpp NVCC_OPTIONS -std=c++11
 * TEST: %t
 * HIT_END
 */



// Test Description:
// This test case verifies the working of hipFuncSetSharedMemConfig() api and
// the flag parameter

#include "test_common.h"


__global__ void ReverseSeq(int *A, int *B, int N) {
  extern __shared__ int SMem[];
  int offset = threadIdx.x;
  int MirrorVal = N - offset - 1;
  SMem[offset] = A[offset];
  __syncthreads();
  B[offset] = SMem[MirrorVal];
}

int main() {
  bool IfTestPassed = true;
  int *Ah = NULL, *RAh = NULL, NELMTS = 128;
  int *Ad = NULL, *RAd = NULL;
  Ah = reinterpret_cast<int*>(malloc(NELMTS * sizeof(int)));
  RAh = reinterpret_cast<int*>(malloc(NELMTS * sizeof(int)));
  HIPCHECK(hipMalloc(&Ad, NELMTS * sizeof(int)));
  HIPCHECK(hipMalloc(&RAd, NELMTS * sizeof(int)));
  for (int i = 0; i < NELMTS; ++i) {
    Ah[i] = i;
    RAh[i] = NELMTS - i - 1;
  }
  HIPCHECK(hipMemcpy(Ad, Ah, NELMTS * sizeof(int), hipMemcpyHostToDevice));
  HIPCHECK(hipMemset(RAd, 0, NELMTS * sizeof(int)));
  // Testing hipFuncSetSharedMemConfig() with hipSharedMemBankSizeDefault flag
  HIPCHECK(hipFuncSetSharedMemConfig(reinterpret_cast<const void*>(&ReverseSeq),
                                     hipSharedMemBankSizeDefault));
  // Kernel Launch with shared mem size of = NELMTS * sizeof(int)
  ReverseSeq<<<1, NELMTS, NELMTS * sizeof(int)>>>(Ad, RAd, NELMTS);
  memset(Ah, 0, NELMTS * sizeof(int));
  // Verifying the results
  HIPCHECK(hipMemcpy(Ah, RAd, NELMTS * sizeof(int), hipMemcpyDeviceToHost));
  for (int i = 0; i < NELMTS; ++i) {
    if (Ah[i] != RAh[i]) {
      printf("Mismatch found at %d value of array\n", i);
      printf(" after setting the flag hipSharedMemBankSizeDefault\n");
      IfTestPassed = false;
    }
  }
  // Testing hipFuncSetSharedMemConfig() with hipSharedMemBankSizeFourBytes flg
  HIPCHECK(hipFuncSetSharedMemConfig(reinterpret_cast<const void*>(&ReverseSeq),
                                     hipSharedMemBankSizeFourByte));
  HIPCHECK(hipMemset(RAd, 0, NELMTS * sizeof(int)));
  // Kernel Launch with shared mem size of = NELMTS * sizeof(int)
  ReverseSeq<<<1, NELMTS, NELMTS * sizeof(int)>>>(Ad, RAd, NELMTS);
  memset(Ah, 0, NELMTS * sizeof(int));
  // Verifying the results
  HIPCHECK(hipMemcpy(Ah, RAd, NELMTS * sizeof(int), hipMemcpyDeviceToHost));
  for (int i = 0; i < NELMTS; ++i) {
    if (Ah[i] != RAh[i]) {
      printf("Mismatch found at %d value of array\n", i);
      printf(" after setting the flag hipSharedMemBankSizeFourByte\n");
      IfTestPassed = false;
    }
  }
  // Testing hipFuncSetSharedMemConfig() with hipSharedMemBankSizeEightBytes flg
  HIPCHECK(hipFuncSetSharedMemConfig(reinterpret_cast<const void*>(&ReverseSeq),
                                      hipSharedMemBankSizeEightByte));
  HIPCHECK(hipMemset(RAd, 0, NELMTS * sizeof(int)));
  // Kernel Launch with shared mem size of = NELMTS * sizeof(int)
  ReverseSeq<<<1, NELMTS, NELMTS * sizeof(int)>>>(Ad, RAd, NELMTS);
  memset(Ah, 0, NELMTS * sizeof(int));
  // Verifying the results
  HIPCHECK(hipMemcpy(Ah, RAd, NELMTS * sizeof(int), hipMemcpyDeviceToHost));
  for (int i = 0; i < NELMTS; ++i) {
    if (Ah[i] != RAh[i]) {
      printf("Mismatch found at %d value of array\n", i);
      printf(" after setting the flag hipSharedMemBankSizeEightByte\n");
      IfTestPassed = false;
    }
  }

  free(Ah);
  free(RAh);
  HIPCHECK(hipFree(Ad));
  HIPCHECK(hipFree(RAd));

  if (IfTestPassed) {
    passed();
  } else {
    failed("");
  }
}