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-/*
- * Copyright (c) 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_CPU_FULLY_CONNECTED_H
-#define ARM_COMPUTE_CPU_FULLY_CONNECTED_H
-
-#include "src/runtime/cpu/ICpuOperator.h"
-
-#include "arm_compute/core/TensorInfo.h"
-
-#include <memory>
-
-namespace arm_compute
-{
-namespace cpu
-{
-// Forward declarations
-class CpuConvertFullyConnectedWeights;
-class CpuFlatten;
-class CpuGemm;
-class CpuGemmLowpMatrixMultiplyCore;
-namespace kernels
-{
-class CpuTransposeKernel;
-} // namespace kernels
-/** Basic function to compute a Fully Connected layer. This function calls the following kernels:
- * -# @ref kernels::CpuIm2ColKernel (called when the input comes from a convolutional layer)
- * -# @ref kernels::CpuTransposeKernel (if @p are_weights_reshaped is set to false and transpose_weights is set to true ) (called once)
- * -# @ref CpuGemm or @ref CpuGemmLowpMatrixMultiplyCore (if quantized asymmetric)
- * -# @ref kernels::CpuGemmMatrixAdditionKernel or @ref CpuGemmLowpOutputStage (if quantized asymmetric) (if @p biases is not equal to nullptr)
- *
- * @note The fully connected layer accepts "weights" tensors only with 2 dimensions.
- */
-class CpuFullyConnected : public ICpuOperator
-{
-public:
- /** Constructor */
- CpuFullyConnected();
- /** Destructor */
- ~CpuFullyConnected();
- /** Set the input and output tensors.
- *
- * Valid data layouts:
- * - NHWC
- * - NCHW
- *
- * Valid data type configurations:
- * |src0 |src1 |src2 |dst |
- * |:--------------|:------------------|:------|:--------------|
- * |F16 |F16 |F16 |F16 |
- * |F32 |F32 |F32 |F32 |
- * |QASYMM8 |QASYMM8 |S32 |QASYMM8 |
- * |QASYMM8_SIGNED |QASYMM8_SIGNED |S32 |QASYMM8_SIGNED |
- *
- * @param[in] src Source tensor info. Data type supported: QASYMM8/QASYMM8_SIGNED/F16/F32.
- * @param[in] weights Weights tensor info. The weights must be 2 dimensional.
- * If this function is called after a Convolution Layer, the (transposed) weights will have as many rows as the product of the first 3 input's dimensions.
- * If it is called after another FullyConnected Layer, the (transposed) weights will have as many rows as the input's first dimension.
- * Data type supported: Same as @p src.
- * @param[in] biases Bias tensor info. Can be nullptr. Data type supported: Same as @p weights, S32 if @p weights is QASYMM8/QASYMM8_SIGNED.
- * @param[out] dst Destination tensor info. Its shape should be equal to the output of a matrix multiplication between:
- * - The output of im2col on the input and the (transposed) 2D weights, if the function is called after a Convolution Layer
- * - The input tensor and the (transposed) 2D weights, if the function is called after another FullyConnected Layer.
- * Data type supported: Same as @p src.
- * @param[in] fc_info (Optional) Fully connected layer additional info
- */
- void configure(const ITensorInfo *src, const ITensorInfo *weights, const ITensorInfo *biases, ITensorInfo *dst,
- FullyConnectedLayerInfo fc_info = FullyConnectedLayerInfo());
- /** Static function to check if given info will lead to a valid configuration of @ref CpuFullyConnected
- *
- * Similar to @ref CpuFullyConnected
- *
- * @return a status
- */
- static Status validate(const ITensorInfo *src, const ITensorInfo *weights, const ITensorInfo *biases, const ITensorInfo *dst,
- FullyConnectedLayerInfo fc_info = FullyConnectedLayerInfo());
-
- //Inherited methods override
- void run(ITensorPack &tensors) override;
- void prepare(ITensorPack &tensors) override;
- experimental::MemoryRequirements workspace() const override;
-
-private:
- void configure_fc_fc(const ITensorInfo *src, const ITensorInfo *weights, const ITensorInfo *biases, ITensorInfo *dst, const ActivationLayerInfo &act);
- void configure_conv_fc(const ITensorInfo *src, const ITensorInfo *weights, const ITensorInfo *biases, ITensorInfo *dst, const ActivationLayerInfo &act);
- void configure_mm(const ITensorInfo *src, const ITensorInfo *weights, const ITensorInfo *biases, ITensorInfo *dst, const ActivationLayerInfo &act);
-
- enum AuxTensorIdx
- {
- AsmGemmWorkspace = 0,
- Pretranspose,
- GemmTemp1, // Both CpuGemm and CpuGemmLowpMatrixMultiplyCore
- GemmTemp2, // Both CpuGemm and CpuGemmLowpMatrixMultiplyCore
- GemmTemp3, // Both CpuGemm and CpuGemmLowpMatrixMultiplyCore
- GemmTemp4, // CpuGemmLowpMatrixMultiplyCore only
- GemmTemp5, // CpuGemmLowpMatrixMultiplyCore only
- GemmTemp6, // CpuGemmLowpMatrixMultiplyCore only
- GemmTemp7, // CpuGemmLowpMatrixMultiplyCore only
- TransposedWeights,
- ConvertedWeights,
- FlattenedSrc,
- Count
- };
-
- std::unique_ptr<CpuFlatten> _flatten;
- std::unique_ptr<CpuConvertFullyConnectedWeights> _convert_weights;
- std::unique_ptr<kernels::CpuTransposeKernel> _transpose_weights;
- std::unique_ptr<CpuGemm> _mm_gemm;
- std::unique_ptr<CpuGemmLowpMatrixMultiplyCore> _mm_gemmlowp;
-
- TensorInfo _flattened_src;
- TensorInfo _converted_weights;
- TensorInfo _reshaped_weights;
- TensorInfo _trans_weights;
- AuxTensorIdx _trans_weights_idx;
-
- experimental::MemoryRequirements _aux_mem;
-
- bool _needs_weights_conversion;
- bool _needs_weights_reshape;
- bool _is_fc_after_conv;
- bool _is_quantized_asymmetric;
- bool _is_prepared;
-};
-} // namespace cpu
-} // namespace arm_compute
-#endif /* ARM_COMPUTE_CPU_FULLY_CONNECTED_H */