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#ifndef ELTWISE_PD_HPP
18#define ELTWISE_PD_HPP
19
20#include "mkldnn.h"
21
22#include "c_types_map.hpp"
23#include "primitive_desc.hpp"
24
25namespace mkldnn {
26namespace impl {
27
28struct eltwise_fwd_pd_t;
29
30struct eltwise_pd_t: public primitive_desc_t {
31 static constexpr auto base_pkind = primitive_kind::eltwise;
32
33 eltwise_pd_t(mkldnn::impl::engine_t *engine,
34 const eltwise_desc_t *adesc,
35 const primitive_attr_t *attr,
36 const eltwise_fwd_pd_t *hint_fwd_pd)
37 : primitive_desc_t(engine, attr, base_pkind)
38 , desc_(*adesc)
39 , hint_fwd_pd_(hint_fwd_pd)
40 , data_md_(desc_.data_desc)
41 {}
42
43 const eltwise_desc_t *desc() const { return &desc_; }
44 virtual const op_desc_t *op_desc() const override
45 { return reinterpret_cast<const op_desc_t *>(this->desc()); }
46 virtual void init_info() override { impl::init_info(this, this->info_); }
47
48 virtual status_t query(query_t what, int idx, void *result) const override {
49 switch (what) {
50 case query::eltwise_d:
51 *(const eltwise_desc_t**)result = desc(); break;
52 default: return primitive_desc_t::query(what, idx, result);
53 }
54 return status::success;
55 }
56
57 /* common eltwise aux functions */
58
59 dim_t MB() const { return data_desc().dims[0]; }
60 dim_t C() const { return data_desc().dims[1]; }
61 dim_t D() const { return ndims() >= 5 ? data_desc().dims[ndims() - 3] : 1; }
62 dim_t H() const { return ndims() >= 4 ? data_desc().dims[ndims() - 2] : 1; }
63 dim_t W() const { return ndims() >= 3 ? data_desc().dims[ndims() - 1] : 1; }
64
65 int ndims() const { return data_desc().ndims; }
66
67 bool is_fwd() const {
68 return utils::one_of(desc_.prop_kind, prop_kind::forward_training,
69 prop_kind::forward_inference);
70 }
71
72 bool has_zero_dim_memory() const
73 { return memory_desc_wrapper(desc_.data_desc).has_zero_dim(); }
74
75protected:
76 eltwise_desc_t desc_;
77 const eltwise_fwd_pd_t *hint_fwd_pd_;
78
79 memory_desc_t data_md_;
80
81private:
82 const memory_desc_t &data_desc() const { return desc_.data_desc; }
83};
84
85struct eltwise_fwd_pd_t: public eltwise_pd_t {
86 typedef eltwise_fwd_pd_t base_class;
87 typedef eltwise_fwd_pd_t hint_class;
88
89 eltwise_fwd_pd_t(mkldnn::impl::engine_t *engine,
90 const eltwise_desc_t *adesc,
91 const primitive_attr_t *attr,
92 const eltwise_fwd_pd_t *hint_fwd_pd)
93 : eltwise_pd_t(engine, adesc, attr, hint_fwd_pd)
94 {}
95
96 virtual arg_usage_t arg_usage(primitive_arg_index_t arg) const override {
97 if (arg == MKLDNN_ARG_SRC)
98 return arg_usage_t::input;
99
100 if (arg == MKLDNN_ARG_DST)
101 return arg_usage_t::output;
102
103 return primitive_desc_t::arg_usage(arg);
104 }
105
106 virtual const memory_desc_t *src_md(int index = 0) const override
107 { return index == 0 ? &data_md_ : nullptr; }
108 virtual const memory_desc_t *dst_md(int index = 0) const override
109 { return index == 0 ? &data_md_ : nullptr; }
110
111 virtual int n_inputs() const override { return 1; }
112 virtual int n_outputs() const override { return 1; }
113
114 bool is_zero_preserved() const
115 { return math::eltwise_fwd_preserves_zero(desc_.alg_kind); }
116};
117
118struct eltwise_bwd_pd_t: public eltwise_pd_t {
119 typedef eltwise_bwd_pd_t base_class;
120 typedef eltwise_fwd_pd_t hint_class;
121
122 eltwise_bwd_pd_t(engine_t *engine,
123 const eltwise_desc_t *adesc,
124 const primitive_attr_t *attr,
125 const eltwise_fwd_pd_t *hint_fwd_pd)
126 : eltwise_pd_t(engine, adesc, attr, hint_fwd_pd)
127 , diff_data_md_(desc_.diff_data_desc)
128 {}
129
130 virtual arg_usage_t arg_usage(primitive_arg_index_t arg) const override {
131 if (utils::one_of(arg, MKLDNN_ARG_SRC, MKLDNN_ARG_DIFF_DST))
132 return arg_usage_t::input;
133
134 if (arg == MKLDNN_ARG_DIFF_SRC)
135 return arg_usage_t::output;
136
137 return primitive_desc_t::arg_usage(arg);
138 }
139
140 virtual const memory_desc_t *src_md(int index = 0) const override
141 { return index == 0 ? &data_md_ : nullptr; }
142 virtual const memory_desc_t *diff_dst_md(int index = 0) const override
143 { return index == 0 ? &diff_data_md_ : nullptr; }
144 virtual const memory_desc_t *diff_src_md(int index = 0) const override
145 { return index == 0 ? &diff_data_md_ : nullptr; }
146
147 virtual int n_inputs() const override { return 2; }
148 virtual int n_outputs() const override { return 1; }
149
150 bool is_zero_preserved() const { return true; }
151
152protected:
153 memory_desc_t diff_data_md_;
154};
155
156}
157}
158
159#endif
160
161// vim: et ts=4 sw=4 cindent cino^=l0,\:0,N-s
162