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paddlepaddle--paddle/paddle/phi/kernels/xpu/temporal_shift_kernel.cc
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2026-07-13 12:40:42 +08:00

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// 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/temporal_shift_kernel.h"
#include "paddle/common/layout.h"
#include "paddle/phi/backends/xpu/enforce_xpu.h"
#include "paddle/phi/core/kernel_registry.h"
#include "paddle/phi/kernels/funcs/axis_utils.h"
namespace phi {
template <typename T, typename Context>
void TemporalShiftKernel(const Context& dev_ctx,
const DenseTensor& x,
int seg_num,
float shift_ratio,
const std::string& data_format_str,
DenseTensor* out) {
if (out && out->numel() == 0) {
dev_ctx.template Alloc<T>(out);
return;
}
auto* input = &x;
auto* output = out;
int64_t t = seg_num;
const DataLayout data_layout = StringToDataLayout(data_format_str);
const int64_t nt = input->dims()[0];
const int64_t n = nt / t;
const int64_t c =
(data_layout == DataLayout::NCHW ? input->dims()[1] : input->dims()[3]);
const int64_t h =
(data_layout == DataLayout::NCHW ? input->dims()[2] : input->dims()[1]);
const int64_t w =
(data_layout == DataLayout::NCHW ? input->dims()[3] : input->dims()[2]);
DDim out_dims = (data_layout == DataLayout::NCHW ? make_ddim({nt, c, h, w})
: make_ddim({nt, h, w, c}));
const T* input_data = input->data<T>();
output->Resize(out_dims);
T* output_data = dev_ctx.template Alloc<T>(output);
if (data_layout == DataLayout::NCHW) {
int r = xpu::temporal_shift(dev_ctx.x_context(),
input_data,
output_data,
n,
c,
h,
w,
t,
shift_ratio,
false);
PADDLE_ENFORCE_XDNN_SUCCESS(r, "temporal_shift");
} else {
int r = xpu::temporal_shift(dev_ctx.x_context(),
input_data,
output_data,
n,
c,
h,
w,
t,
shift_ratio,
true);
PADDLE_ENFORCE_XDNN_SUCCESS(r, "temporal_shift");
}
}
} // namespace phi
PD_REGISTER_KERNEL(
temporal_shift, XPU, ALL_LAYOUT, phi::TemporalShiftKernel, float) {}