// Copyright (c) 2022 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.

#include "paddle/phi/kernels/reduce_max_kernel.h"

#include "paddle/phi/backends/all_context.h"
#include "paddle/phi/core/kernel_registry.h"

namespace phi {

template <typename T, typename Context>
void MaxKernel(const Context& dev_ctx,
               const DenseTensor& x,
               const IntArray& dims,
               bool keep_dim,
               DenseTensor* out) {
  bool reduce_all = false;
  if (dims.size() == 0 || static_cast<int>(dims.size()) == x.dims().size()) {
    reduce_all = true;
  }
  MaxRawKernel<T>(dev_ctx, x, dims, keep_dim, reduce_all, out);
}

}  // namespace phi

PD_REGISTER_KERNEL(
    max, CPU, ALL_LAYOUT, phi::MaxKernel, float, double, int, int64_t) {}

#if defined(PADDLE_WITH_CUDA) || defined(PADDLE_WITH_HIP)
PD_REGISTER_KERNEL(
    max, GPU, ALL_LAYOUT, phi::MaxKernel, float, double, int, int64_t) {}
#endif

#if defined(PADDLE_WITH_XPU_KP) && !defined(PADDLE_WITH_XPU)
PD_REGISTER_KERNEL(max, KPS, ALL_LAYOUT, phi::MaxKernel, float) {}
#endif

#if defined(PADDLE_WITH_MKLDNN)
PD_REGISTER_KERNEL(
    max, OneDNN, ONEDNN, phi::MaxKernel, float, phi::dtype::bfloat16) {}
#endif

#if defined(PADDLE_WITH_XPU)
PD_REGISTER_KERNEL(max, XPU, ALL_LAYOUT, phi::MaxKernel, float) {}
#endif
