| /* |
| * Copyright (c) 2018 ARM Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #ifndef __ARM_COMPUTE_GRAPH_IDEVICEBACKEND_H__ |
| #define __ARM_COMPUTE_GRAPH_IDEVICEBACKEND_H__ |
| |
| #include "arm_compute/graph/ITensorHandle.h" |
| #include "arm_compute/graph/Types.h" |
| #include "arm_compute/runtime/IFunction.h" |
| #include "arm_compute/runtime/IMemoryManager.h" |
| |
| #include <memory> |
| |
| namespace arm_compute |
| { |
| namespace graph |
| { |
| // Forward declarations |
| class Graph; |
| class GraphContext; |
| class Tensor; |
| class INode; |
| |
| namespace backends |
| { |
| /** Device backend interface */ |
| class IDeviceBackend |
| { |
| public: |
| /** Virtual Destructor */ |
| virtual ~IDeviceBackend() = default; |
| /** Initializes the backend */ |
| virtual void initialize_backend() = 0; |
| /** Setups the given graph context |
| * |
| * @param[in,out] ctx Graph context |
| */ |
| virtual void setup_backend_context(GraphContext &ctx) = 0; |
| /** Release the backend specific resources associated to a given graph context |
| * |
| * @param[in,out] ctx Graph context |
| */ |
| virtual void release_backend_context(GraphContext &ctx) = 0; |
| /** Checks if an instantiated backend is actually supported |
| * |
| * @return True if the backend is supported else false |
| */ |
| virtual bool is_backend_supported() = 0; |
| /** Gets a backend memory allocator |
| * |
| * @return Backend memory allocator |
| */ |
| virtual IAllocator *backend_allocator() = 0; |
| /** Create a backend Tensor |
| * |
| * @param[in] tensor The tensor we want to create a backend tensor for |
| * |
| * @return Backend tensor handle |
| */ |
| virtual std::unique_ptr<ITensorHandle> create_tensor(const Tensor &tensor) = 0; |
| /** Create a backend Sub-Tensor |
| * |
| * @param[in] parent Parent sub-tensor handle |
| * @param[in] shape Shape of the sub-tensor |
| * @param[in] coords Starting coordinates of the sub-tensor |
| * @param[in] extend_parent Extends parent shape if true |
| * |
| * @return Backend sub-tensor handle |
| */ |
| virtual std::unique_ptr<ITensorHandle> create_subtensor(ITensorHandle *parent, TensorShape shape, Coordinates coords, bool extend_parent) = 0; |
| /** Configure a backend Node |
| * |
| * @note This creates an appropriate configured backend function for the given node |
| * |
| * @param[in] node The node we want to configure |
| * @param[in] ctx Context to use |
| * |
| * @return Backend execution function |
| */ |
| virtual std::unique_ptr<arm_compute::IFunction> configure_node(INode &node, GraphContext &ctx) = 0; |
| /** Validate a node |
| * |
| * @param[in] node The node we want to validate |
| * |
| * @return An error status |
| */ |
| virtual Status validate_node(INode &node) = 0; |
| /** Create a backend memory manager given its affinity |
| * |
| * @param[in] affinity Memory Manager affinity |
| * |
| * @return Memory manager |
| */ |
| virtual std::shared_ptr<arm_compute::IMemoryManager> create_memory_manager(MemoryManagerAffinity affinity) = 0; |
| }; |
| } // namespace backends |
| } // namespace graph |
| } // namespace arm_compute |
| #endif //__ARM_COMPUTE_GRAPH_IDEVICEBACKEND_H__ |