1/*******************************************************************************
2* Copyright 2016-2018 Intel Corporation
3*
4* Licensed under the Apache License, Version 2.0 (the "License");
5* you may not use this file except in compliance with the License.
6* You may obtain a copy of the License at
7*
8* http://www.apache.org/licenses/LICENSE-2.0
9*
10* Unless required by applicable law or agreed to in writing, software
11* distributed under the License is distributed on an "AS IS" BASIS,
12* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13* See the License for the specific language governing permissions and
14* limitations under the License.
15*******************************************************************************/
16
17#include <assert.h>
18#include "mkldnn.h"
19
20#include "c_types_map.hpp"
21#include "type_helpers.hpp"
22#include "utils.hpp"
23
24using namespace mkldnn::impl;
25using namespace mkldnn::impl::utils;
26using namespace mkldnn::impl::status;
27using namespace mkldnn::impl::prop_kind;
28using namespace mkldnn::impl::alg_kind;
29using namespace mkldnn::impl::types;
30
31namespace {
32status_t eltwise_desc_init(eltwise_desc_t *eltwise_desc, prop_kind_t prop_kind,
33 alg_kind_t alg_kind, const memory_desc_t *data_desc,
34 const memory_desc_t *diff_data_desc, float alpha, float beta) {
35 bool args_ok = true
36 && !any_null(eltwise_desc, data_desc)
37 && one_of(prop_kind, forward_training, forward_inference,
38 backward_data)
39 && one_of(alg_kind, eltwise_relu, eltwise_tanh, eltwise_elu,
40 eltwise_square, eltwise_abs, eltwise_sqrt, eltwise_linear,
41 eltwise_bounded_relu, eltwise_soft_relu, eltwise_logistic)
42 && IMPLICATION(prop_kind == backward_data, diff_data_desc != nullptr);
43 if (!args_ok) return invalid_arguments;
44
45 auto ed = eltwise_desc_t();
46 ed.primitive_kind = primitive_kind::eltwise;
47 ed.prop_kind = prop_kind;
48 ed.alg_kind = alg_kind;
49
50 ed.data_desc = *data_desc;
51 ed.diff_data_desc =
52 (ed.prop_kind == backward_data) ? *diff_data_desc : zero_md();
53
54 ed.alpha = alpha;
55 ed.beta = beta;
56
57 bool consistency = true
58 && IMPLICATION(ed.prop_kind == backward_data,
59 array_cmp(ed.diff_data_desc.dims, ed.data_desc.dims,
60 ed.diff_data_desc.ndims));
61 if (!consistency) return invalid_arguments;
62
63 *eltwise_desc = ed;
64 return success;
65}
66}
67
68status_t mkldnn_eltwise_forward_desc_init(eltwise_desc_t *eltwise_desc,
69 prop_kind_t prop_kind, alg_kind_t alg_kind,
70 const memory_desc_t *data_desc, float alpha, float beta) {
71 if (!one_of(prop_kind, forward_training, forward_inference))
72 return invalid_arguments;
73 return eltwise_desc_init(eltwise_desc, prop_kind, alg_kind, data_desc,
74 nullptr, alpha, beta);
75}
76
77status_t mkldnn_eltwise_backward_desc_init(eltwise_desc_t *eltwise_desc,
78 alg_kind_t alg_kind, const memory_desc_t *diff_data_desc,
79 const memory_desc_t *data_desc, float alpha, float beta) {
80 return eltwise_desc_init(eltwise_desc, backward_data, alg_kind, data_desc,
81 diff_data_desc, alpha, beta);
82}
83
84// vim: et ts=4 sw=4 cindent cino^=l0,\:0,N-s
85