1 | /* Copyright 2016 The TensorFlow Authors. All Rights Reserved. |
2 | |
3 | Licensed under the Apache License, Version 2.0 (the "License"); |
4 | you may not use this file except in compliance with the License. |
5 | You may obtain a copy of the License at |
6 | |
7 | http://www.apache.org/licenses/LICENSE-2.0 |
8 | |
9 | Unless required by applicable law or agreed to in writing, software |
10 | distributed under the License is distributed on an "AS IS" BASIS, |
11 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
12 | See the License for the specific language governing permissions and |
13 | limitations under the License. |
14 | ==============================================================================*/ |
15 | |
16 | #ifndef TENSORFLOW_CORE_UTIL_STREAM_EXECUTOR_UTIL_H_ |
17 | #define TENSORFLOW_CORE_UTIL_STREAM_EXECUTOR_UTIL_H_ |
18 | |
19 | #include "tensorflow/core/framework/tensor.h" |
20 | #include "tensorflow/core/lib/core/errors.h" |
21 | #include "tensorflow/core/lib/core/status.h" |
22 | #include "tensorflow/core/platform/stream_executor.h" |
23 | |
24 | namespace tensorflow { |
25 | |
26 | // StreamExecutorUtil contains functions useful for interfacing |
27 | // between StreamExecutor classes and TensorFlow. |
28 | class StreamExecutorUtil { |
29 | public: |
30 | // Map a Tensor as a DeviceMemory object wrapping the given typed |
31 | // buffer. |
32 | template <typename T> |
33 | static se::DeviceMemory<T> AsDeviceMemory(const Tensor& t) { |
34 | T* ptr = reinterpret_cast<T*>(const_cast<char*>(t.tensor_data().data())); |
35 | return se::DeviceMemory<T>(se::DeviceMemoryBase(ptr, t.TotalBytes())); |
36 | } |
37 | }; |
38 | |
39 | } // namespace tensorflow |
40 | |
41 | #endif // TENSORFLOW_CORE_UTIL_STREAM_EXECUTOR_UTIL_H_ |
42 | |