| /* |
| * Copyright (c) 2017-2021 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_NEGEMMLOWPOUTPUTSTAGE_H |
| #define ARM_COMPUTE_NEGEMMLOWPOUTPUTSTAGE_H |
| |
| #include "arm_compute/core/Types.h" |
| #include "arm_compute/runtime/IFunction.h" |
| |
| /** This file contains all available output stages for GEMMLowp. |
| * |
| * In gemmlowp, the "output stage" is the process that takes a final int32 accumulator value (the output of @ref NEGEMMLowpMatrixMultiplyCore), |
| * and processes it to obtain the final ASYMM8 value. |
| * |
| * More information about the GEMMLowp output stage can be found at https://github.com/google/gemmlowp/blob/master/doc/output.md |
| */ |
| |
| namespace arm_compute |
| { |
| class ITensor; |
| class ITensorInfo; |
| /** Basic function to execute GEMMLowpQuantizeDown kernels. |
| * |
| * This function calls the following operators: |
| * |
| * -# @ref cpu::CpuGemmLowpOutputStage |
| */ |
| class NEGEMMLowpOutputStage : public IFunction |
| { |
| public: |
| /** Constructor */ |
| NEGEMMLowpOutputStage(); |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| NEGEMMLowpOutputStage(const NEGEMMLowpOutputStage &) = delete; |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| NEGEMMLowpOutputStage &operator=(const NEGEMMLowpOutputStage &) = delete; |
| /** Prevent instances of this class from being moved (As this class contains non movable objects) */ |
| NEGEMMLowpOutputStage(NEGEMMLowpOutputStage &&) = delete; |
| /** Prevent instances of this class from being moved (As this class contains non movable objects) */ |
| NEGEMMLowpOutputStage &operator=(NEGEMMLowpOutputStage &&) = delete; |
| /** Default destructor */ |
| ~NEGEMMLowpOutputStage(); |
| /** Initialise the kernel's inputs, output |
| * |
| * Valid data layouts: |
| * - All |
| * |
| * Valid data type configurations: |
| * |src0 |src1 |dst | |
| * |:--------------|:-------------|:-------------| |
| * |S32 |S32 |QASYMM8 | |
| * |S32 |S32 |QASYMM8_SIGNED| |
| * |S32 |S32 |QSYMM16 | |
| * |
| * @param[in] input Input tensor. Data type supported: S32 |
| * @param[in] bias Biases tensor. Only shared biases supported and it can be a nullptr if the biases addition is not required. |
| * Biases are 1D tensor with dimensions [OFM]. Data type supported: Same as @p input. |
| * @param[out] output Output tensor. Data type supported: Data type supported: QASYMM8/QASYMM8_SIGNED/QSYMM16 |
| * @param[in] info GEMMLowp output stage metadata. |
| */ |
| void configure(const ITensor *input, const ITensor *bias, ITensor *output, const GEMMLowpOutputStageInfo &info); |
| /** Static function to check if given info will lead to a valid configuration of @ref NEGEMMLowpOutputStage |
| * |
| * @param[in] input Input tensor info. It is the output of @ref NEGEMMLowpMatrixMultiplyCore function. Data type supported: S32 |
| * @param[in] bias Biases tensor info. Only shared biases supported and it can be a nullptr if the addition of biases is not required. |
| * Biases are 1D tensor with dimensions [OFM]. Data type supported: Same as @p input. |
| * @param[in] output Output tensor info. Data type supported: Data type supported: QASYMM8/QASYMM8_SIGNED/QSYMM16 |
| * @param[in] info GEMMLowp output stage metadata. |
| * |
| * @return a status |
| */ |
| static Status validate(const ITensorInfo *input, const ITensorInfo *bias, const ITensorInfo *output, const GEMMLowpOutputStageInfo &info); |
| |
| // Inherited methods overridden: |
| void run() override; |
| |
| private: |
| struct Impl; |
| std::unique_ptr<Impl> _impl; |
| }; |
| } // namespace arm_compute |
| #endif /*ARM_COMPUTE_NEGEMMLOWPOUTPUTSTAGE_H */ |