From ebcebf1dee7f8314976b1e0cabd62b4cf893d765 Mon Sep 17 00:00:00 2001 From: Michalis Spyrou Date: Wed, 21 Oct 2020 00:04:14 +0100 Subject: COMPMID-3638: Move NEON kernels Signed-off-by: Michalis Spyrou Change-Id: Ieed3e4bc8be7fef80c90c5094599b477a56fc473 Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4285 Comments-Addressed: Arm Jenkins Reviewed-by: Georgios Pinitas Tested-by: Arm Jenkins --- src/core/NEON/kernels/NEIm2ColKernel.h | 139 +++++++++++++++++++++++++++++++++ 1 file changed, 139 insertions(+) create mode 100644 src/core/NEON/kernels/NEIm2ColKernel.h (limited to 'src/core/NEON/kernels/NEIm2ColKernel.h') diff --git a/src/core/NEON/kernels/NEIm2ColKernel.h b/src/core/NEON/kernels/NEIm2ColKernel.h new file mode 100644 index 0000000000..6c1c631d82 --- /dev/null +++ b/src/core/NEON/kernels/NEIm2ColKernel.h @@ -0,0 +1,139 @@ +/* + * Copyright (c) 2017-2020 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_NEIM2COLKERNEL_H +#define ARM_COMPUTE_NEIM2COLKERNEL_H + +#include "src/core/NEON/INEKernel.h" + +namespace arm_compute +{ +class ITensor; +class Size2D; + +/** Interface for the im2col reshape kernel. + * + * Rearranges image blocks into columns. It is used to strip out each convolution block to a single column. + * It is used to transform a convolution to a plain matrix multiplication. + * + * For example taking into account the image below and assuming 3x3 image blocks with stride of 1 we have: + * + * @f[ + * \left( \begin{array}{cccc} + * a00 & a01 & a02 & a03 \\ + * a10 & a11 & a12 & a13 \\ + * a20 & a21 & a22 & a23 \\ + * a30 & a31 & a32 & a33 \\ + * \end{array} \right) + * \rightarrow + * \left( \begin{array}{ccccccccc} + * a00 & a01 & a02 & a10 & a11 & a12 & a20 & a21 & a22 \\ + * a01 & a02 & a03 & a11 & a12 & a13 & a21 & a22 & a23 \\ + * a10 & a11 & a12 & a20 & a21 & a22 & a30 & a31 & a32 \\ + * a11 & a12 & a13 & a21 & a22 & a23 & a31 & a32 & a33 \\ + * \end{array} \right) + * @f] + */ +class NEIm2ColKernel : public INEKernel +{ +public: + const char *name() const override + { + return "NEIm2ColKernel"; + } + /** Default constructor */ + NEIm2ColKernel(); + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NEIm2ColKernel(const NEIm2ColKernel &) = delete; + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NEIm2ColKernel &operator=(const NEIm2ColKernel &) = delete; + /** Allow instances of this class to be moved */ + NEIm2ColKernel(NEIm2ColKernel &&) = default; + /** Allow instances of this class to be moved */ + NEIm2ColKernel &operator=(NEIm2ColKernel &&) = default; + /** Default destructor */ + ~NEIm2ColKernel() = default; + + /** Set the input and output of the kernel. + * + * @param[in] input The input tensor to convert. 3 lower dimensions represent a single input [width, height, IFM], + * while every optional dimension from 4 and above represent a batch of inputs. + * Data types supported: QASYMM8/QASYMM8_SIGNED/BFLOAT16/F16/F32 + * Note: QASYMM8/QASYMM8_SIGNED works only for has_bias = false + * @param[out] output The output tensor. Data types supported: Same as @p input + * @param[in] kernel_dims The kernel dimensions (width and height). + * @param[in] conv_info Contains padding and stride information described in @ref PadStrideInfo. + * @param[in] has_bias In case biases are provided expands the matrix with 1. + * @param[in] dilation (Optional) Dilation, in elements, across x and y. Defaults to (1, 1). + * @param[in] num_groups (Optional) Number of groups when performing a grouped convolution. num_groups != 1 is not supported + */ + void configure(const ITensor *input, ITensor *output, const Size2D &kernel_dims, const PadStrideInfo &conv_info, + bool has_bias, const Size2D &dilation = Size2D(1U, 1U), unsigned int num_groups = 1); + /** Static function to check if given info will lead to a valid configuration of @ref NEIm2ColKernel + * + * @param[in] input The input tensor to convert. 3 lower dimensions represent a single input [width, height, IFM], + * while every optional dimension from 4 and above represent a batch of inputs. + * Data types supported: QASYMM8/QASYMM8_SIGNED/BFLOAT16/F16/F32 + * Note: QASYMM8/QASYMM8_SIGNED works only for has_bias = false + * @param[in] output The output tensor. Data types supported: Same as @p input + * @param[in] kernel_dims The kernel dimensions (width and height). + * @param[in] conv_info Contains padding and stride information described in @ref PadStrideInfo. + * @param[in] has_bias In case biases are provided expands the matrix with 1. + * @param[in] dilation (Optional) Dilation, in elements, across x and y. Defaults to (1, 1). + * @param[in] num_groups (Optional) Number of groups when performing a grouped convolution. num_groups != 1 is not supported + * + * @return a status + */ + static Status validate(const ITensorInfo *input, const ITensorInfo *output, const Size2D &kernel_dims, const PadStrideInfo &conv_info, + bool has_bias, const Size2D &dilation = Size2D(1U, 1U), unsigned int num_groups = 1); + + // Inherited methods overridden: + void run(const Window &window, const ThreadInfo &info) override; + +private: + /** Template function to run im2col + * + * @param[in] window Region on which to execute the kernel. (Must be a valid region of the window returned by window()). + */ + template + void run_im2col(const Window &window); + + /** Common signature for all the specialised im2col functions + * + * @param[in] window Region on which to execute the kernel. + */ + using Im2ColFunctionPtr = void (NEIm2ColKernel::*)(const Window &window); + + Im2ColFunctionPtr _func; + const ITensor *_input; + ITensor *_output; + std::pair _convolved_dims; + PadStrideInfo _conv_info; + unsigned int _kernel_width; + unsigned int _kernel_height; + bool _has_bias; + Size2D _dilation; + DataLayout _data_layout; +}; +} // namespace arm_compute +#endif /*ARM_COMPUTE_NEIM2COLKERNEL_H */ -- cgit v1.2.1