129 lines
4.0 KiB
C++
129 lines
4.0 KiB
C++
/*
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* Copyright (c) 2019-2020 Arm Limited.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef ARM_COMPUTE_ITRANSFORMWEIGHTS_H
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#define ARM_COMPUTE_ITRANSFORMWEIGHTS_H
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#include <atomic>
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#include <utility>
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namespace arm_compute
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{
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// Forward declarations
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class ITensor;
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/** Weights tensor transform interface
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* In order to identify the different reshape functions, each reshape function has
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* to generate a unique id. We use the following conversion using an unsigned 32bit value:
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*
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* Lower two bits store the target:
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* 00 -> NEON
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* 01 -> CL
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* 10 -> GLES
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* 11 -> Unused
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*
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* Five bits store the id of the reshape function:
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* 00000 -> FullyConnectedLayerReshapeWeights
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* 00001 -> ConvertFullyConnectedWeights
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* 00010 -> ConvolutionLayerReshapeWeights
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* 00011 -> DepthwiseConvolutionLayerReshapeWeights
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* 00100 -> GEMMReshapeLHSMatrixKernel
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* 00101 -> GEMMReshapeRHSMatrixKernel
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*
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* Rest of the bits are used for identifying special cases such as assembly functions and extra
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* arguments in the reshape kernels.
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*
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* */
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class ITransformWeights
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{
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public:
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/** Default Constructor */
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ITransformWeights() = default;
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/** Default Destructor */
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virtual ~ITransformWeights() = default;
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/** Prevent instances of this class to be copy constructed */
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ITransformWeights(const ITransformWeights &) = delete;
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/** Prevent instances of this class to be copied */
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ITransformWeights &operator=(const ITransformWeights &) = delete;
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/** Allow instances of this class to be move constructed */
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ITransformWeights(ITransformWeights &&other)
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{
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*this = std::move(other);
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}
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/** Allow instances of this class to be moved */
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ITransformWeights &operator=(ITransformWeights &&other)
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{
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if(this != &other)
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{
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_num_refcount = other._num_refcount.load();
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_reshape_run = other._reshape_run;
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}
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return *this;
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}
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/** Get a pointer to the transformed weights
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*
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* @return The pointer to the transformed ITensor weights
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*/
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virtual ITensor *get_weights() = 0;
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/** Function that returns a unique id of the reshape function
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*
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* @return The computed unique id
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*/
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virtual uint32_t uid() = 0;
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/** Run the transformation function */
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virtual void run() = 0;
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/** Release transformed weights memory */
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virtual void release() = 0;
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/** Increase the object's refcount */
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void increase_refcount()
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{
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++_num_refcount;
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}
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/** Decrease the object's refcount and return the updated value
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*
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* @return The updated refcount
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* */
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int32_t decrease_refcount()
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{
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return --_num_refcount;
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}
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/** Function that returns a flag on whether the weights are reshaped or not
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*
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* @return True if the function is reshaped
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*/
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bool is_reshape_run()
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{
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return _reshape_run;
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}
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protected:
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std::atomic<int32_t> _num_refcount{ 0 };
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bool _reshape_run{ false };
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};
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} // arm_compute
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#endif /*ARM_COMPUTE_ITRANSFORMWEIGHTS_H */
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