From 2dce6cc676dbedf90101202c0dd678c24b1e3e43 Mon Sep 17 00:00:00 2001 From: John Kesapides Date: Mon, 14 Jan 2019 09:47:09 +0000 Subject: COMPMID-1763 : NEON: Implement Gather Change-Id: I9a3808315290bd395f5acce4530ab8daccddf8be Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/167195 Tested-by: bsgcomp Reviewed-by: Georgios Pinitas Reviewed-on: https://review.mlplatform.org/520 Tested-by: Arm Jenkins Reviewed-by: Pablo Marquez --- arm_compute/core/NEON/kernels/NEGatherKernel.h | 112 +++++++++++++++++++++++++ 1 file changed, 112 insertions(+) create mode 100644 arm_compute/core/NEON/kernels/NEGatherKernel.h (limited to 'arm_compute/core/NEON/kernels/NEGatherKernel.h') diff --git a/arm_compute/core/NEON/kernels/NEGatherKernel.h b/arm_compute/core/NEON/kernels/NEGatherKernel.h new file mode 100644 index 0000000000..667e9812d8 --- /dev/null +++ b/arm_compute/core/NEON/kernels/NEGatherKernel.h @@ -0,0 +1,112 @@ +/* + * Copyright (c) 2019 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_NEGATHERKERNEL_H__ +#define __ARM_COMPUTE_NEGATHERKERNEL_H__ + +#include "arm_compute/core/NEON/INEKernel.h" +#include "arm_compute/core/Types.h" + +namespace arm_compute +{ +class ITensor; + +/** Kernel to perform other operation on NEON */ +class NEGatherKernel : public INEKernel +{ +public: + /** Default constructor. */ + NEGatherKernel(); + /** Prevent instances of this class from being copied (As this class contains pointers). */ + NEGatherKernel(const NEGatherKernel &) = delete; + /** Prevent instances of this class from being copied (As this class contains pointers). */ + NEGatherKernel &operator=(const NEGatherKernel &) = delete; + /** Allow instances of this class to be moved. */ + NEGatherKernel(NEGatherKernel &&) = default; + /** Allow instances of this class to be moved. */ + NEGatherKernel &operator=(NEGatherKernel &&) = default; + /** Default detructor */ + ~NEGatherKernel() = default; + + /** Name of the kernel + * + * @return Kernel name + */ + const char *name() const override + { + return "NEGatherKernel"; + } + /** Initialise the kernel's inputs and outputs + * + * @param[in] input Source tensor. Supported tensor rank: up to 4. Data type supported: U8/S8/QASYMM8/U16/S16/U32/S32/F16/F32 + * @param[in] indices Indices tensor. Supported tensor rank: up to 1. Must be one of the following type: U32/S32. Each value Must be in range [0, input.shape[@p axis]) + * @param[out] output Destination tensor. Data type supported: Same as @p input + * @param[in] axis (Optional) The axis in @p input to gather @p indices from. Negative values wrap around. Defaults to 0 + */ + void configure(const ITensor *input, const ITensor *indices, ITensor *output, int axis = 0); + /** Static function to check if given info will lead to a valid configuration of @ref NEGatherKernel + * + * @param[in] input Source tensor info. Supported tensor rank: up to 4. Data type supported: U8/S8/QASYMM8/U16/S16/U32/S32/F16/F32 + * @param[in] indices Indices tensor info. Supported tensor rank: up to 1. Must be one of the following type: U32/S32. Each value Must be in range [0, input.shape[@p axis]) + * @param[in] output Destination tensor info. Data type supported: Same as @p input + * @param[in] axis (Optional) The axis in @p input to gather @p indices from. Negative values wrap around. Defaults to 0 + * + * @return a status + */ + static Status validate(const ITensorInfo *input, const ITensorInfo *indices, const ITensorInfo *output, int axis); + + // Inherited methods overridden: + void run(const Window &window, const ThreadInfo &info) override; + +private: + /** Implementation of the gather operation for 0 axis. + * + * For gather on the 0 axis an element by element copy is performed. + * + * @param[in] window Region on which to execute the kernel. (Must be a region of the window returned by window()) + * @param[in] info Info about executing thread and CPU. + */ + template + void gather_0_axis(const Window &window, const ThreadInfo &info); + + /** Implementation of the gather operation. + * + * For 1<=axis a row-wise copy is taking place. + * + * @param[in] window Region on which to execute the kernel. (Must be a region of the window returned by window()) + * @param[in] info Info about executing thread and CPU. + */ + template + void gather_n_axis(const Window &window, const ThreadInfo &info); + + using kernel_ptr = void (NEGatherKernel::*)(const Window &window, const ThreadInfo &info); + + const ITensor *_input; + const ITensor *_indices; + int _axis; + ITensor *_output; + kernel_ptr _func; +}; +} // namespace arm_compute +#endif /* __ARM_COMPUTE_NEGATHERKERNEL_H__ */ -- cgit v1.2.1