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/*
* Copyright (c) 2017-2021 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_CL_GEMMLOWP_REDUCTION_KERNEL_H
#define ARM_COMPUTE_CL_GEMMLOWP_REDUCTION_KERNEL_H
#include "arm_compute/core/KernelDescriptors.h"
#include "src/core/common/Macros.h"
#include "src/core/gpu/cl/ClCompileContext.h"
#include "src/core/gpu/cl/IClKernel.h"
namespace arm_compute
{
namespace opencl
{
namespace kernels
{
/** Common interface for all OpenCL reduction kernels */
class IClGemmLowpReductionKernel : public IClKernel
{
public:
IClGemmLowpReductionKernel();
ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE(IClGemmLowpReductionKernel);
/** Initialise the kernel's input and output.
*
* @param[in] compile_context The compile context to be used.
* @param[in] input Input tensor. Data type supported: QASYMM8/QASYMM8_SIGNED/QSYMM8.
* @param[out] output Output row-vector of sums of all the entries in each row/col of input tensor. Data type supported: S32
* @param[in] info Kernel metadata:
* - k Number of matrix columns/rows depending on the type of reduction.
* - is_reshaped True if the matrix has been reshaped.
* - scalar Scalar value to multiply each reduced column/row by.
* - mul_byscalar True if each reduced column/row must be multiplied by a scalar value.
*/
virtual void configure(const CLCompileContext &compile_context, const ITensorInfo *input, ITensorInfo *output, const GEMMLowpReductionKernelInfo &info) = 0;
};
/** OpenCL kernel used to compute the row-vectors of sums of all the entries in each row of Matrix A.
*
* @note This stage is needed to handle the offset of matrix product
* https://github.com/google/gemmlowp/blob/master/doc/low-precision.md
*/
class ClGemmLowpMatrixAReductionKernel : public IClGemmLowpReductionKernel
{
public:
/** Initialise the kernel's input and output.
*
* @param[in] compile_context The compile context to be used.
* @param[in] mtx_a Input tensor. Data type supported: QASYMM8/QASYMM8_SIGNED/QSYMM8.
* @param[out] vector_sum_row Output row-vector of sums of all the entries in each row of mtx_a. Data type supported: S32
* @param[in] info Kernel metadata:
* - k Number of matrix columns/rows depending on the type of reduction.
* - is_reshaped True if the matrix has been reshaped.
* - scalar Scalar value to multiply each reduced column/row by.
* - mul_byscalar True if each reduced column/row must be multiplied by a scalar value.
*/
void configure(const CLCompileContext &compile_context, const ITensorInfo *mtx_a, ITensorInfo *vector_sum_row, const GEMMLowpReductionKernelInfo &info) override;
/** Static function to check if given info will lead to a valid configuration
*
* Similar to @ref ClGemmLowpQuantizeDownInt32ScaleByFixedPointKernel::configure()
*
* @return a status
*/
static Status validate(const ITensorInfo *mtx_a, const ITensorInfo *vector_sum_row, const GEMMLowpReductionKernelInfo &info);
// Inherited methods overridden:
void run_op(ITensorPack &tensors, const Window &window, cl::CommandQueue &queue) override;
};
/** OpenCL kernel used to compute the row-vectors of sums of all the entries in each column of Matrix B.
*
* @note This stage is needed to handle the offset of matrix product
* https://github.com/google/gemmlowp/blob/master/doc/low-precision.md
*/
class ClGemmLowpMatrixBReductionKernel : public IClGemmLowpReductionKernel
{
public:
/** Initialise the kernel's input and output.
*
* @param[in] compile_context The compile context to be used.
* @param[in] mtx_b Input tensor. Data type supported: Data type supported: QASYMM8/QASYMM8_SIGNED/QSYMM8/QSYMM8_PER_CHANNEL.
* @param[out] vector_sum_col Output row-vector of sums of all the entries in each column of mtx_b. Data type supported: S32
* @param[in] info Kernel metadata:
* - k Number of matrix columns/rows depending on the type of reduction.
* - is_reshaped True if the matrix has been reshaped.
* - scalar Scalar value to multiply each reduced column/row by.
* - mul_byscalar True if each reduced column/row must be multiplied by a scalar value.
*/
void configure(const CLCompileContext &compile_context, const ITensorInfo *mtx_b, ITensorInfo *vector_sum_col, const GEMMLowpReductionKernelInfo &info) override;
/** Static function to check if given info will lead to a valid configuration
*
* Similar to @ref ClGemmLowpQuantizeDownInt32ScaleByFixedPointKernel::configure()
*
* @return a status
*/
static Status validate(const ITensorInfo *mtx_b, const ITensorInfo *vector_sum_col, const GEMMLowpReductionKernelInfo &info);
// Inherited methods overridden:
void run_op(ITensorPack &tensors, const Window &window, cl::CommandQueue &queue) override;
};
} // namespace kernels
} // namespace opencl
} // namespace arm_compute
#endif /* ARM_COMPUTE_CL_GEMMLOWP_REDUCTION_KERNEL_H */
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