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Copyright (c) 2022 Advanced Micro Devices, Inc. All rights reserved.

Permission is hereby granted, free of charge, to any person obtaining a copy
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
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THE SOFTWARE.
*/


#include <hip_test_common.hh>
#include "hipArrayCommon.hh"
#include "utils.hh"
#include <array>


/*
 * hipFreeMipmappedArray API test scenarios
 * 1. Check that hipFreeMipmappedArray implicitly synchronises the device.
 * 2. Perform multiple allocations and then call hipFreeMipmappedArray on each pointer concurrently
 * (from unique threads) for different memory types and different allocation sizes.
 * 3. Pass nullptr as argument and check that correct error code is returned.
 * 4. Call hipFreeMipmappedArray twice on the same pointer and check that the implementation handles
 * the second call correctly.
 */
TEMPLATE_TEST_CASE("Unit_hipFreeMipmappedArrayImplicitSyncArray", "", char, float) {
  hipMipmappedArray_t arrayPtr{};
  hipExtent extent{};
  hipChannelFormatDesc desc = hipCreateChannelDesc<TestType>();
  hipDeviceProp_t props;
  std::array<unsigned int, 3> levels = {1, 5, 7};

#if HT_AMD
  const unsigned int flags = hipArrayDefault;
#else
  const unsigned int flags = GENERATE(hipArrayDefault, hipArraySurfaceLoadStore);
#endif

  extent.width = GENERATE(64, 256, 1024);
  extent.height = GENERATE(64, 256, 1024);
  extent.depth = GENERATE(0, 64, 256, 1024);

  HIP_CHECK(hipGetDeviceProperties(&props, 0))

  for (auto numLevels : levels) {
    INFO(" extent: (" << extent.width << ", " << extent.height << ", " << extent.depth << ") and "
                      << numLevels << " levels. Total VRAM: " << props.totalGlobalMem);
    if (extent.width * extent.height * extent.depth * numLevels * sizeof(TestType) >
        props.totalGlobalMem / 2) {
      // some devices will not have enough memory allocate the 6GB required for the biggest extent
      // We would skip the test if the extent would require more than half of the global memory.
      // Note that totalGlobalMem is not an exact measurement of the available memory for
      // compute and we cannot use it as an exact value, so we use half
      // (we use SUCCEED as no warning is needed)
      SUCCEED(
          "Device might not have enough global memory to allocate a mipmapped array using this "
          "extent; "
          "test will not be run. Total global memory: "
          << props.totalGlobalMem);
      continue;
    }

    HIP_CHECK_IGNORED_RETURN(hipMallocMipmappedArray(&arrayPtr, &desc, extent, numLevels, flags),
                             hipErrorNotSupported);

    LaunchDelayKernel(std::chrono::milliseconds{50}, nullptr);
    // make sure device is busy
    HIP_CHECK_ERROR(hipStreamQuery(nullptr), hipErrorNotReady);
    HIP_CHECK(hipFreeMipmappedArray(arrayPtr));
    HIP_CHECK(hipStreamQuery(nullptr));
  }
}

TEST_CASE("Unit_hipFreeMipmappedArray_Negative_Nullptr") {
#if HT_AMD
  HIP_CHECK_ERROR(hipFreeMipmappedArray(nullptr), hipErrorInvalidValue);
#else
  HIP_CHECK(hipFreeMipmappedArray(nullptr));
#endif
}

TEMPLATE_TEST_CASE("Unit_hipFreeMipmappedArrayMultiTArray", "", char, int) {
  constexpr size_t numAllocs = 10;
  std::vector<std::thread> threads;
  std::vector<hipMipmappedArray_t> ptrs(numAllocs);
  hipExtent extent{};
  hipChannelFormatDesc desc = hipCreateChannelDesc<TestType>();

  const unsigned int numLevels = GENERATE(1, 5, 7);

#if HT_AMD
  const unsigned int flags = hipArrayDefault;
#else
  const unsigned int flags = GENERATE(hipArrayDefault, hipArraySurfaceLoadStore);
#endif

  extent.width = GENERATE(64, 256, 1024);
  extent.height = GENERATE(64, 256, 1024);
  extent.depth = GENERATE(0, 64, 256, 1024);

  int i = 0;
  for (; i < ptrs.size(); i++) {
    if (hipErrorOutOfMemory == hipMallocMipmappedArray(&ptrs[i], &desc, extent, numLevels, flags)) {
      break;
    }
  }

  for (int j = 0; j < i; j++) {
    threads.emplace_back([ptrs, j] {
      if (hipSuccess != hipFreeMipmappedArray(ptrs[j])) {
        return;
      }
      if (hipSuccess != hipStreamQuery(nullptr)) {
        return;
      }
    });
  }

  for (auto& t : threads) {
    t.join();
  }

  HIP_CHECK_THREAD_FINALIZE();
}