/*
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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*/
// Simple test for memset.
// Also serves as a template for other tests.

/* HIT_START
 * BUILD: %t %s ../../test_common.cpp
 * TEST: %t
 * //Small copy
 * TEST: %t -N 10    --memsetval 0x42 --memsetD32val 0x101 --memsetD16val 0x10 --memsetD8val 0x1
 * // Oddball size
 * TEST: %t -N 10013 --memsetval 0x5a --memsetD32val 0xDEADBEEF --memsetD16val 0xDEAD --memsetD8val 0xDE
 * // Big copy
 * TEST: %t -N 256M  --memsetval 0xa6 --memsetD32val 0xCAFEBABE --memsetD16val 0xCAFE --memsetD8val 0xCA
 * HIT_END
 */
#define MAX_OFFSET 3
// To test memset on unaligned pointer
#define loop(offset, offsetMax) for (int offset = offsetMax; offset >= 0; offset --)

#include <vector>
#include "hip/hip_runtime.h"
#include "test_common.h"
enum MemsetType {
  hipMemsetTypeDefault,
  hipMemsetTypeD8,
  hipMemsetTypeD16,
  hipMemsetTypeD32
};

bool testhipMemsetSmallSize(int memsetval, int p_gpuDevice)
{
  char *A_d;
  char *A_h;
  bool testResult = true;
  for ( size_t iSize = 1; iSize < 4; iSize++ ) {
    size_t Nbytes = iSize * sizeof(char);
    HIPCHECK(hipMalloc(&A_d, Nbytes));
    A_h = reinterpret_cast<char*> (malloc(Nbytes));
    printf("testhipMemsetSmallSize N=%zu  memsetval=%2x device=%d\n",
          iSize, memsetval, p_gpuDevice);
    HIPCHECK(hipMemset(A_d, memsetval, Nbytes));
    HIPCHECK(hipMemcpy(A_h, A_d, Nbytes, hipMemcpyDeviceToHost));

    for ( int i = 0; i < iSize; i++ ) {
      if ( A_h[i] != memsetval ) {
        testResult = false;
        printf("mismatch at index:%d computed:%02x, memsetval:%02x\n",
              i, static_cast<int> (A_h[i]), static_cast<int> (memsetval));
          break;
      }
    }
  HIPCHECK(hipFree(A_d));
  free(A_h);
  }
  return testResult;
}

template<typename T>
bool testhipMemset(T*A_h, T*A_d, T memsetval, enum MemsetType type,
                  int p_gpuDevice) {
  size_t Nbytes = N * sizeof(T);
  bool testResult = true;
  HIPCHECK(hipMalloc(&A_d, Nbytes));
  A_h = reinterpret_cast<T*> (malloc(Nbytes));
  loop(offset, MAX_OFFSET) {
    if (type == hipMemsetTypeDefault) {
      printf("testhipMemset N=%zu  memsetval=%2x device=%d\n",
            (N - offset), memsetval, p_gpuDevice);
      HIPCHECK(hipMemset(A_d + offset, memsetval, N - offset));
    } else if (type == hipMemsetTypeD8) {
      printf("testhipMemsetD8 N=%zu  memsetD8val=%4x device=%d\n",
            (N - offset), memsetval, p_gpuDevice);
      HIPCHECK(hipMemsetD8((hipDeviceptr_t)(A_d + offset), memsetval, N - offset));
    } else if (type == hipMemsetTypeD16) {
      printf("testhipMemsetD16 N=%zu  memsetD16val=%4x device=%d\n",
            (N - offset), memsetval, p_gpuDevice);
      HIPCHECK(hipMemsetD16((hipDeviceptr_t)(A_d + offset), memsetval, N - offset));
    } else if (type == hipMemsetTypeD32) {
      printf("testhipMemsetD32 N=%zu  memsetD32val=%8x device=%d\n",
            (N - offset), memsetval, p_gpuDevice);
      HIPCHECK(hipMemsetD32((hipDeviceptr_t)(A_d + offset), memsetval, N - offset));
    }
    HIPCHECK(hipMemcpy(A_h, A_d, Nbytes, hipMemcpyDeviceToHost) );
    for ( int i = offset; i < N; i++ ) {
      if (A_h[i] != memsetval) {
        testResult = false;
        printf("mismatch at index:%d computed:%02x, memsetval:%02x\n",
              i, static_cast<int> (A_h[i]), static_cast<int> (memsetval));
        break;
      }
    }
  }
  HIPCHECK(hipFree(A_d));
  free(A_h);
  return testResult;
}

template<typename T>
bool testhipMemsetAsync(T*A_h, T*A_d, T memsetval, enum MemsetType type,
                       int p_gpuDevice) {
  size_t Nbytes = N * sizeof(T);
  bool testResult = true;
  HIPCHECK(hipMalloc(reinterpret_cast<void**> (&A_d), Nbytes));
  A_h = reinterpret_cast<T*> (malloc(Nbytes));
  hipStream_t stream;
  HIPCHECK(hipStreamCreate(&stream));
  loop(offset, MAX_OFFSET) {
    if (type == hipMemsetTypeDefault) {
      printf("testhipMemsetAsync N=%zu  memsetval=%2x device=%d\n",
            (N - offset), memsetval, p_gpuDevice);
      HIPCHECK(hipMemsetAsync(A_d+offset, memsetval, Nbytes-offset, stream));
    } else if (type == hipMemsetTypeD8) {
      printf("testhipMemsetD8Async N=%zu  memsetD8val=%2x device=%d\n",
            (N - offset), memsetval, p_gpuDevice);
      HIPCHECK(hipMemsetD8Async((hipDeviceptr_t)(A_d + offset), memsetval, N - offset, stream));
    } else if (type == hipMemsetTypeD16) {
      printf("testhipMemsetD16Async N=%zu  memsetD16val=%8x device=%d\n",
            (N - offset), memsetval, p_gpuDevice);
      HIPCHECK(hipMemsetD16Async((hipDeviceptr_t)(A_d + offset), memsetval, N - offset, stream));
    } else if (type == hipMemsetTypeD32) {
      printf("testhipMemsetD32Async N=%zu  memsetD32val=%8x device=%d\n",
            (N - offset), memsetval, p_gpuDevice);
      HIPCHECK(hipMemsetD32Async((hipDeviceptr_t)(A_d + offset), memsetval, N - offset, stream));
    }
    HIPCHECK(hipStreamSynchronize(stream));
    HIPCHECK(hipMemcpy(A_h, reinterpret_cast<void*> (A_d), Nbytes, hipMemcpyDeviceToHost));

    for ( int i = offset; i < N; i++ ) {
      if (A_h[i] != memsetval) {
        testResult = false;
        printf("mismatch at index:%d computed:%02x\n", i, static_cast<int> (A_h[i]));
        break;
      }
    }
  }
  HIPCHECK(hipFree(reinterpret_cast<void*> (A_d)) );
  HIPCHECK(hipStreamDestroy(stream));
  free(A_h);
  return testResult;
}

bool testhipMemset2AsyncOps() {
  printf("testhipMemset2AsyncOps 2 memset operations at the same time\n");
  std::vector<float> v;
  v.resize(2048);
  float* p2, *p3;
  hipMalloc(reinterpret_cast<void**>(&p2), 4096 + 4096*2);
  p3 = p2+2048;
  hipStream_t s;
  hipStreamCreate(&s);
  hipMemsetAsync(p2, 0, 32*32*4, s);
  hipMemsetD32Async((hipDeviceptr_t)p3, 0x3fe00000, 32*32, s );
  hipStreamSynchronize(s);
  for (int i = 0; i < 256; ++i) {
    hipMemsetAsync(p2, 0, 32*32*4, s);
    hipMemsetD32Async((hipDeviceptr_t)p3, 0x3fe00000, 32*32, s );
  }
  hipStreamSynchronize(s);
  hipDeviceSynchronize();
  hipMemcpy(&v[0], p2, 1024, hipMemcpyDeviceToHost);
  hipMemcpy(&v[1024], p3, 1024, hipMemcpyDeviceToHost);
  if ((v[0] != 0) || (v[1024] != 1.75f)) {
    printf("mismatch (%f != 0) or (%f != 1.75f)\n", v[0], v[1024]);
    return false;
  }
  return true;
}

int main(int argc, char *argv[]) {
  HipTest::parseStandardArguments(argc, argv, true);
  bool testResult = true;
  char * cA_d = NULL;
  char * cA_h = NULL;
  int16_t * siA_d = NULL;
  int16_t * siA_h = NULL;
  int32_t * iA_d = NULL;
  int32_t * iA_h = NULL;
  HIPCHECK(hipSetDevice(p_gpuDevice));
  testResult &= testhipMemsetSmallSize(memsetval, p_gpuDevice);

  testResult &= testhipMemset(cA_h, cA_d, memsetval, hipMemsetTypeDefault, p_gpuDevice);
  testResult &= testhipMemset(iA_h, iA_d, memsetD32val, hipMemsetTypeD32, p_gpuDevice);
  testResult &= testhipMemset(siA_h, siA_d, memsetD16val, hipMemsetTypeD16, p_gpuDevice);
  testResult &= testhipMemset(cA_h, cA_d, memsetD8val, hipMemsetTypeD8, p_gpuDevice);

  testResult &= testhipMemsetAsync(cA_h, cA_d, memsetval, hipMemsetTypeDefault, p_gpuDevice);
  testResult &= testhipMemsetAsync(iA_h, iA_d, memsetD32val, hipMemsetTypeD32, p_gpuDevice);
  testResult &= testhipMemsetAsync(siA_h, siA_d, memsetD16val, hipMemsetTypeD16, p_gpuDevice);
  testResult &= testhipMemsetAsync(cA_h, cA_d, memsetD8val, hipMemsetTypeD8, p_gpuDevice);
  testResult &= testhipMemset2AsyncOps();
  if (testResult) passed();
  failed("Output Mismatch\n");
}