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#include <iostream>

#include "cutlass/cutlass.h"
#include "cute/tensor.hpp"
#include "cute/atom/mma_atom.hpp"

#include "cutlass/numeric_types.h"

#include "cutlass/gemm/device/gemm_universal_adapter.h"
#include "cutlass/gemm/kernel/gemm_universal.hpp"
#include "cutlass/epilogue/collective/collective_builder.hpp"
#include "cutlass/gemm/collective/collective_builder.hpp"
#include "cutlass/epilogue/collective/default_epilogue.hpp"
#include "cutlass/epilogue/thread/linear_combination.h"
#include "cutlass/gemm/dispatch_policy.hpp"

#include "../../../common/cutlass_unit_test.h"

#include "../gemm_testbed_3x.hpp"

#if (defined(CUTLASS_ARCH_MMA_SM120_SUPPORTED) || defined(CUTLASS_ARCH_MMA_SM121_SUPPORTED))

using namespace cute;

///////////////////////////////////////////////////////////////////////////////

TEST(SM120_Device_Gemm_fe2m1t_fe5m2n_f32n_tensor_op_f32, 128x64x128_1x1x1) {
  using ElementA = cutlass::float_e2m1_t;
  using ElementB = cutlass::float_e5m2_t;
  using ElementC = float;
  using ElementD = float;
  using ElementAccumulator = float;
  using ElementCompute = float;
  using LayoutA = cutlass::layout::RowMajor;
  using LayoutB = cutlass::layout::ColumnMajor;
  using LayoutC = cutlass::layout::ColumnMajor;
  using LayoutD = cutlass::layout::ColumnMajor;

  static constexpr int AlignmentA = 64 * 8 / cutlass::sizeof_bits<ElementA>::value; // Align to 64 bytes.
  static constexpr int AlignmentB = 16 * 8 / cutlass::sizeof_bits<ElementB>::value; // Align to 16 bytes.
  static constexpr int AlignmentC = 128 / cutlass::sizeof_bits<ElementC>::value;
  static constexpr int AlignmentD = 128 / cutlass::sizeof_bits<ElementD>::value;

  using TileShape = Shape<_128,_64,_128>;
  using ClusterShape = Shape<_1,_1,_1>;

  using CollectiveEpilogue = typename cutlass::epilogue::collective::CollectiveBuilder<
      cutlass::arch::Sm120, cutlass::arch::OpClassTensorOp,
      TileShape, ClusterShape,
      cutlass::epilogue::collective::EpilogueTileAuto,
      ElementAccumulator, ElementCompute,
      ElementC, LayoutC, AlignmentC,
      ElementD, LayoutD, AlignmentD,
      cutlass::epilogue::collective::EpilogueScheduleAuto
    >::CollectiveOp;

  using CollectiveMainloop = typename cutlass::gemm::collective::CollectiveBuilder<
      cutlass::arch::Sm120, cutlass::arch::OpClassTensorOp,
      ElementA, LayoutA, AlignmentA,
      ElementB, LayoutB, AlignmentB,
      ElementAccumulator,
      TileShape, ClusterShape,
      cutlass::gemm::collective::StageCountAutoCarveout<static_cast<int>(sizeof(typename CollectiveEpilogue::SharedStorage))>,
      cutlass::gemm::collective::KernelScheduleAuto
    >::CollectiveOp;

  using GemmKernel = cutlass::gemm::kernel::GemmUniversal<
      Shape<int,int,int,int>,
      CollectiveMainloop,
      CollectiveEpilogue
  >;

  using Gemm = cutlass::gemm::device::GemmUniversalAdapter<GemmKernel>;
  bool result = test::gemm::device::TestSmall<Gemm, true>(1.0, 0.0);
  EXPECT_TRUE(result);
}

TEST(SM120_Device_Gemm_fe4m3t_fe2m1n_f32n_tensor_op_f32, 128x64x128_1x1x1) {
  using ElementA = cutlass::float_e4m3_t;
  using ElementB = cutlass::float_e2m1_t;
  using ElementC = float;
  using ElementD = float;
  using ElementAccumulator = float;
  using ElementCompute = float;
  using LayoutA = cutlass::layout::RowMajor;
  using LayoutB = cutlass::layout::ColumnMajor;
  using LayoutC = cutlass::layout::ColumnMajor;
  using LayoutD = cutlass::layout::ColumnMajor;

  static constexpr int AlignmentA = 16 * 8 / cutlass::sizeof_bits<ElementA>::value; // Align to 16 bytes.
  static constexpr int AlignmentB = 64 * 8 / cutlass::sizeof_bits<ElementB>::value; // Align to 64 bytes.
  static constexpr int AlignmentC = 128 / cutlass::sizeof_bits<ElementC>::value;
  static constexpr int AlignmentD = 128 / cutlass::sizeof_bits<ElementD>::value;

  using TileShape = Shape<_128,_64,_128>;
  using ClusterShape = Shape<_1,_1,_1>;

  using CollectiveEpilogue = typename cutlass::epilogue::collective::CollectiveBuilder<
      cutlass::arch::Sm120, cutlass::arch::OpClassTensorOp,
      TileShape, ClusterShape,
      cutlass::epilogue::collective::EpilogueTileAuto,
      ElementAccumulator, ElementCompute,
      ElementC, LayoutC, AlignmentC,
      ElementD, LayoutD, AlignmentD,
      cutlass::epilogue::collective::EpilogueScheduleAuto
    >::CollectiveOp;

  using CollectiveMainloop = typename cutlass::gemm::collective::CollectiveBuilder<
      cutlass::arch::Sm120, cutlass::arch::OpClassTensorOp,
      ElementA, LayoutA, AlignmentA,
      ElementB, LayoutB, AlignmentB,
      ElementAccumulator,
      TileShape, ClusterShape,
      cutlass::gemm::collective::StageCountAutoCarveout<static_cast<int>(sizeof(typename CollectiveEpilogue::SharedStorage))>,
      cutlass::gemm::collective::KernelScheduleAuto
    >::CollectiveOp;

  using GemmKernel = cutlass::gemm::kernel::GemmUniversal<
      Shape<int,int,int,int>,
      CollectiveMainloop,
      CollectiveEpilogue
  >;

  using Gemm = cutlass::gemm::device::GemmUniversalAdapter<GemmKernel>;
  bool result = test::gemm::device::TestSmall<Gemm, true>(1.0, 0.0);
  EXPECT_TRUE(result);
}

///////////////////////////////////////////////////////////////////////////////

#endif // (defined(CUTLASS_ARCH_MMA_SM120_SUPPORTED) || defined(CUTLASS_ARCH_MMA_SM121_SUPPORTED))
