// Copyright (c) 2024 PaddlePaddle Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#pragma once
#include <vector>

#include "paddle/phi/api/include/tensor.h"
#include "paddle/phi/backends/gpu/gpu_dnn.h"
#include "paddle/phi/kernels/funcs/math_function.h"

namespace phi {
namespace math {

#if defined(PADDLE_WITH_CUDA) || defined(PADDLE_WITH_HIP)
template <typename T>
class PreluChannelWiseDirectCUDAFunctor {
 public:
  void operator()(gpuStream_t stream,
                  const T *input,
                  const T *alpha,
                  T *output,
                  size_t batch_size,
                  size_t channel,
                  bool channel_last,
                  size_t numel);
};

template <typename T>
class PreluElementWiseDirectCUDAFunctor {
 public:
  void operator()(gpuStream_t stream,
                  const T *input,
                  const T *alpha,
                  T *output,
                  size_t batch_size,
                  size_t numel);
};

template <typename T>
class PreluScalarDirectCUDAFunctor {
 public:
  void operator()(gpuStream_t stream,
                  const T *input,
                  const T *alpha,
                  T *output,
                  size_t numel);
};

#endif

}  // namespace math
}  // namespace phi