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/*
* 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/core/NEON/kernels/NEGEMMLowpFinalizeKernel.h"
#include "arm_compute/core/NEON/kernels/NEGEMMLowpReductionKernel.h"
#include "arm_compute/runtime/IFunction.h"
#include "arm_compute/runtime/IMemoryManager.h"
#include "arm_compute/runtime/MemoryGroup.h"
#include "arm_compute/runtime/NEON/functions/NEGEMMLowpMatrixMultiplyCore.h"
#include "arm_compute/runtime/Tensor.h"
#include <memory>
namespace arm_compute
{
class ITensor;
/** Basic function to execute GEMMLowp on NEON. This function calls the following NEON kernels/function:
*
* -# @ref NEGEMMLowpMatrixAReductionKernel
* -# @ref NEGEMMLowpMatrixBReductionKernel
* -# @ref NEGEMMLowpMatrixMultiplyCore
* -# @ref NEGEMMLowpFinalizeKernel
*
*/
class NEGEMMLowp : public IFunction
{
public:
/** Constructor */
NEGEMMLowp(std::shared_ptr<IMemoryManager> memory_manager = nullptr);
/** Initialise the kernel's inputs, output
*
* @note GEMM_LOWP: low precision GEMM kernel
* This kernel performs the following computations:
*
* -# 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] c_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 c_offset, int32_t output_mult_int, int32_t shift);
// Inherited methods overridden:
void run() override;
private:
MemoryGroup _memory_group;
NEGEMMLowpMatrixMultiplyCore _mm_func;
NEGEMMLowpMatrixAReductionKernel _mtx_a_reduction_kernel;
NEGEMMLowpMatrixBReductionKernel _mtx_b_reduction_kernel;
NEGEMMLowpFinalizeKernel _finalize_kernel;
Tensor _vector_sum_col;
Tensor _vector_sum_row;
Tensor _mm_output;
int32_t _a_offset;
int32_t _b_offset;
};
}
#endif /*__ARM_COMPUTE_NEGEMMLOWP_H__ */
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