1/*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19
20/*!
21 * \brief Mapping op constructions
22 * \file nn/mapping.h
23 */
24#ifndef TVM_TOPI_NN_MAPPING_H_
25#define TVM_TOPI_NN_MAPPING_H_
26
27#include <tvm/te/operation.h>
28#include <tvm/topi/tags.h>
29
30#include <string>
31
32namespace tvm {
33namespace topi {
34namespace nn {
35
36using namespace tvm::te;
37
38/*!
39 * \brief Scale and shift with NCHW order
40 *
41 * \param x The input tensor.
42 * \param scale Scale tensor, 1-D of size channel
43 * \param shift Shift tensor, 1-D of size channel
44 * \param name The name of the operation
45 * \param tag The tag to mark the operation
46 *
47 * \return A Tensor whose op member is the scale shift operation
48 */
49inline Tensor scale_shift_nchw(const Tensor& x, const Tensor& scale, const Tensor& shift,
50 std::string name = "ScaleShift", std::string tag = kBroadcast) {
51 return tvm::te::compute(
52 x->shape, [&](Var b, Var c, Var h, Var w) { return x(b, c, h, w) * scale(c) + shift(c); },
53 name, tag);
54}
55
56/*!
57 * \brief Scale and shift with NHWC order
58 *
59 * \param x The input tensor.
60 * \param scale Scale tensor, 1-D of size channel
61 * \param shift Shift tensor, 1-D of size channel
62 * \param name The name of the operation
63 * \param tag The tag to mark the operation
64 *
65 * \return A Tensor whose op member is the scale shift operation
66 */
67inline Tensor scale_shift_nhwc(const Tensor& x, const Tensor& scale, const Tensor& shift,
68 std::string name = "ScaleShift", std::string tag = kBroadcast) {
69 return tvm::te::compute(
70 x->shape, [&](Var b, Var h, Var w, Var c) { return x(b, h, w, c) * scale(c) + shift(c); },
71 name, tag);
72}
73
74} // namespace nn
75} // namespace topi
76} // namespace tvm
77#endif // TVM_TOPI_NN_MAPPING_H_
78