/*
 * Copyright (c) Advanced Micro Devices, Inc., or its affiliates.
 *
 * SPDX-License-Identifier: MIT
 */

#include "atomicExch_common.hh"
#include "atomicExch_negative_kernels_rtc.hh"

/**
 * @addtogroup atomicExch atomicExch
 * @{
 * @ingroup AtomicsTest
 */

// Helper function to run atomicExch tests for same address (compile time)
template <typename TestType> static void runAtomicExchSameAddressCompileTimeTest() {
  for (auto current = 0; current < cmd_options.iterations; ++current) {
    DYNAMIC_SECTION("Positive Same Address" << current) {
      AtomicExchSameAddressTest<TestType, AtomicScopes::device>();
    }
  }
}

// Helper function to run atomicExch tests (single kernel)
template <typename TestType> static void runAtomicExchTest() {
  int warp_size = 0;
  HIP_CHECK(hipDeviceGetAttribute(&warp_size, hipDeviceAttributeWarpSize, 0));
  const auto cache_line_size = 128u;

  for (auto current = 0; current < cmd_options.iterations; ++current) {
    DYNAMIC_SECTION("Same address " << current) {
      AtomicExchSingleDeviceSingleKernelTest<TestType, AtomicScopes::device>(1, sizeof(TestType));
    }

    DYNAMIC_SECTION("Adjacent addresses " << current) {
      AtomicExchSingleDeviceSingleKernelTest<TestType, AtomicScopes::device>(warp_size,
                                                                             sizeof(TestType));
    }

    DYNAMIC_SECTION("Scattered addresses " << current) {
      AtomicExchSingleDeviceSingleKernelTest<TestType, AtomicScopes::device>(warp_size,
                                                                             cache_line_size);
    }
  }
}

// Helper function to run atomicExch tests (multi kernel)
template <typename TestType> static void runAtomicExchMultiKernelTest() {
  int warp_size = 0;
  HIP_CHECK(hipDeviceGetAttribute(&warp_size, hipDeviceAttributeWarpSize, 0));
  const auto cache_line_size = 128u;

  for (auto current = 0; current < cmd_options.iterations; ++current) {
    DYNAMIC_SECTION("Same address " << current) {
      AtomicExchSingleDeviceMultipleKernelTest<TestType, AtomicScopes::device>(2, 1,
                                                                               sizeof(TestType));
    }

    DYNAMIC_SECTION("Adjacent addresses " << current) {
      AtomicExchSingleDeviceMultipleKernelTest<TestType, AtomicScopes::device>(2, warp_size,
                                                                               sizeof(TestType));
    }

    DYNAMIC_SECTION("Scattered addresses " << current) {
      AtomicExchSingleDeviceMultipleKernelTest<TestType, AtomicScopes::device>(2, warp_size,
                                                                               cache_line_size);
    }
  }
}

/**
 * Test Description
 * ------------------------
 *    - Executes a kernel wherein all threads will perform an atomic exchange in the same(compile
 * time deducible) memory location. Each thread will exchange its own grid wide linear index + 1
 * into the memory location, storing the return value into a separate output array slot
 * corresponding to it. Once complete, the union of output array and exchange memory is validated to
 * contain all values in the range [0, number_of_threads].
 *
 *    - The test is run for:
 *      - All overloads of atomicExch
 *      - hipMalloc, hipMallocManaged, hipHostMalloc and hipHostRegister allocated exchange memory
 *      - Exchange memory located in shared memory
 *      - Several grid and block dimension combinations(only one block is used for shared memory)
 * Test source
 * ------------------------
 *    - unit/atomics/atomicExch.cc
 * Test requirements
 * ------------------------
 *    - HIP_VERSION >= 5.2
 */
HIP_TEST_CASE(Unit_atomicExch_Positive_Same_Address_Compile_Time) {
  SECTION("int") { runAtomicExchSameAddressCompileTimeTest<int>(); }
  SECTION("unsigned int") { runAtomicExchSameAddressCompileTimeTest<unsigned int>(); }
#ifndef HT_NVIDIA
  SECTION("unsigned long") { runAtomicExchSameAddressCompileTimeTest<unsigned long>(); }
#endif
  SECTION("unsigned long long") { runAtomicExchSameAddressCompileTimeTest<unsigned long long>(); }
  SECTION("float") { runAtomicExchSameAddressCompileTimeTest<float>(); }
#ifndef HT_NVIDIA
  SECTION("double") { runAtomicExchSameAddressCompileTimeTest<double>(); }
#endif
}

/**
 * Test Description
 * ------------------------
 *    - Executes a single kernel on a single device wherein all threads will perform an atomic
 * exchange into a runtime determined memory location. Each thread will exchange its own grid wide
 * linear index + offset into the memory location, storing the return value into a separate output
 * array slot corresponding to it. Once complete, the union of output array and exchange memory is
 * validated to contain all values in the range [0, number_of_threads +
 * number_of_exchange_memory_slots). Several memory access patterns are tested:
 *      -# All threads exchange to a single memory location
 *      -# Each thread exchanges into an array containing warp_size elements, using tid % warp_size
 *         for indexing
 *      -# Same as the above, but the exchange elements are spread out by L1 cache line size bytes.
 *
 *    - The test is run for:
 *      - All overloads of atomicExch
 *      - hipMalloc, hipMallocManaged, hipHostMalloc and hipHostRegister allocated exchange memory
 *      - Exchange memory located in shared memory
 *      - Several grid and block dimension combinations(only one block is used for shared memory)
 * Test source
 * ------------------------
 *    - unit/atomics/atomicExch.cc
 * Test requirements
 * ------------------------
 *    - HIP_VERSION >= 5.2
 */
HIP_TEST_CASE(Unit_atomicExch_Positive) {
  SECTION("int") { runAtomicExchTest<int>(); }
  SECTION("unsigned int") { runAtomicExchTest<unsigned int>(); }
#ifndef HT_NVIDIA
  SECTION("unsigned long") { runAtomicExchTest<unsigned long>(); }
#endif
  SECTION("unsigned long long") { runAtomicExchTest<unsigned long long>(); }
  SECTION("float") { runAtomicExchTest<float>(); }
#ifndef HT_NVIDIA
  SECTION("double") { runAtomicExchTest<double>(); }
#endif
}

/**
 * Test Description
 * ------------------------
 *    - Executes a kernel two times concurrently on a single device wherein all threads will perform
 * an atomic exchange into a runtime determined memory location. Each thread will exchange its own
 * grid wide linear index + offset into the memory location, storing the return value into a
 * separate output array slot corresponding to it. Once complete, the union of output array and
 * exchange memory is validated to contain all values in the range [0, number_of_threads +
 * number_of_exchange_memory_slots). Several memory access patterns are tested:
 *      -# All threads exchange to a single memory location
 *      -# Each thread exchanges into an array containing warp_size elements, using tid % warp_size
 * for indexing
 *      -# Same as the above, but the exchange elements are spread out by L1 cache line size bytes.
 *
 *    - The test is run for:
 *      - All overloads of atomicExch
 *      - hipMalloc, hipMallocManaged, hipHostMalloc and hipHostRegister allocated exchange memory
 *      - Several grid and block dimension combinations
 * Test source
 * ------------------------
 *    - unit/atomics/atomicExch.cc
 * Test requirements
 * ------------------------
 *    - HIP_VERSION >= 5.2
 */
HIP_TEST_CASE(Unit_atomicExch_Positive_Multi_Kernel) {
  SECTION("int") { runAtomicExchMultiKernelTest<int>(); }
  SECTION("unsigned int") { runAtomicExchMultiKernelTest<unsigned int>(); }
#ifndef HT_NVIDIA
  SECTION("unsigned long") { runAtomicExchMultiKernelTest<unsigned long>(); }
#endif
  SECTION("unsigned long long") { runAtomicExchMultiKernelTest<unsigned long long>(); }
  SECTION("float") { runAtomicExchMultiKernelTest<float>(); }
#ifndef HT_NVIDIA
  SECTION("double") { runAtomicExchMultiKernelTest<double>(); }
#endif
}

/**
 * Test Description
 * ------------------------
 *    - RTCs kernels that pass combinations of arguments of invalid types for all overloads of
 * atomicExch
 * Test source
 * ------------------------
 *    - unit/atomics/atomicExch.cc
 * Test requirements
 * ------------------------
 *    - HIP_VERSION >= 5.2
 */
HIP_TEST_CASE(Unit_atomicExch_Negative_Parameters_RTC) {
  hiprtcProgram program{};

  const auto program_source = GENERATE(kAtomicExchInt, kAtomicExchUnsignedInt, kAtomicExchULL,
                                       kAtomicExchFloat, kAtomicExchDouble);
  HIPRTC_CHECK(
      hiprtcCreateProgram(&program, program_source, "atomicExch_negative.cc", 0, nullptr, nullptr));
  hiprtcResult result{hiprtcCompileProgram(program, 0, nullptr)};

  // Get the compile log and count compiler error messages
  size_t log_size{};
  HIPRTC_CHECK(hiprtcGetProgramLogSize(program, &log_size));
  std::string log(log_size, ' ');
  HIPRTC_CHECK(hiprtcGetProgramLog(program, log.data()));
  int error_count{0};

  int expected_error_count{8};
  std::string error_message{"error:"};

  size_t n_pos = log.find(error_message, 0);
  while (n_pos != std::string::npos) {
    ++error_count;
    n_pos = log.find(error_message, n_pos + 1);
  }

  HIPRTC_CHECK(hiprtcDestroyProgram(&program));
  HIPRTC_CHECK_ERROR(result, HIPRTC_ERROR_COMPILATION);
  REQUIRE(error_count == expected_error_count);
}

/**
 * End doxygen group AtomicsTest.
 * @}
 */