| /* |
| * Copyright (c) 2017 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_NEGEMMLOWP_H__ |
| #define __ARM_COMPUTE_NEGEMMLOWP_H__ |
| |
| #include "arm_compute/core/NEON/INEKernel.h" |
| #include "arm_compute/runtime/IFunction.h" |
| #include "arm_compute/runtime/Tensor.h" |
| |
| #include "arm_compute/core/NEON/kernels/NEFillBorderKernel.h" |
| #include "arm_compute/core/NEON/kernels/NEGEMMInterleave4x4Kernel.h" |
| #include "arm_compute/core/NEON/kernels/NEGEMMLowpMatrixMultiplyKernel.h" |
| #include "arm_compute/core/NEON/kernels/NEGEMMTranspose1xWKernel.h" |
| |
| namespace arm_compute |
| { |
| class ITensor; |
| |
| /** Basic function to execute GEMMLowp on NEON. This function calls the following NEON kernels: |
| * |
| * -# @ref NEGEMMInterleave4x4Kernel |
| * -# @ref NEGEMMTranspose1xWKernel |
| * -# @ref NEGEMMLowpMatrixMultiplyKernel |
| * |
| */ |
| class NEGEMMLowp : public IFunction |
| { |
| public: |
| /** Constructor */ |
| NEGEMMLowp(); |
| /** Initialise the kernel's inputs, output |
| * |
| * @note GEMM_LOWP: low precision GEMM kernel |
| * This kernel performs the following computation: |
| * |
| * -# Convert a values from uint8 to int32 and add a_offset to each of them. |
| * -# Convert b values from uint8 to int32 and add b_offset to each of them. |
| * -# Compute the int32 matrix product of the resulting a * b. |
| * -# Add output_offset to each entry of the result. |
| * -# Multiply each entry of the result and round to the nearest integer |
| * -# Clamp the resulting int32 values to the [0..255] range and cast to uint8. |
| * |
| * @param[in] a First input tensor (Matrix A). Data type supported: U8. |
| * @param[in] b Second input tensor (Matrix B). Data type supported: same as @p a |
| * @param[out] output Output tensor. Data type supported: same as @p a. |
| * @param[in] a_offset Offset to be added to each element of the matrix A. |
| * @param[in] b_offset Offset to be added to each element of the matrix B. |
| * @param[in] output_offset Offset to be added to each element of the output matrix |
| * @param[in] output_mult_int Value to be multiplied to each element of the output matrix |
| * @param[in] shift Number of bits to shift right the result. |
| */ |
| void configure(const ITensor *a, const ITensor *b, ITensor *output, int32_t a_offset, int32_t b_offset, int32_t output_offset, int32_t output_mult_int, int32_t shift); |
| // Inherited methods overridden: |
| void run() override; |
| |
| private: |
| NEGEMMInterleave4x4Kernel _interleave_kernel; |
| NEGEMMTranspose1xWKernel _transpose_kernel; |
| NEGEMMLowpMatrixMultiplyKernel _mm_kernel; |
| Tensor _tmp_a; |
| Tensor _tmp_b; |
| }; |
| } |
| #endif /*__ARM_COMPUTE_NEGEMMLOWP_H__ */ |