text: /*
   * Copyright (c) 2019-2021 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_GEMM_MATRIXMULTIPLY_NATIVE_KERNEL_H
  #define ARM_COMPUTE_CL_GEMM_MATRIXMULTIPLY_NATIVE_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
  {
  /** OpenCL kernel to multiply matrices when neither of the input matrices have been reshaped */
  class ClGemmMatrixMultiplyNativeKernel : public IClKernel
  {
  public:
      ClGemmMatrixMultiplyNativeKernel();
      ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE(ClGemmMatrixMultiplyNativeKernel);
      /** Initialise the kernel's input and dst.
       *
       * @param[in]  compile_context The compile context to be used.
       * @param[in]  src0            Input tensor for the LHS matrix. Data type supported: F32. The number of dimensions for the LHS matrix must be less or equal than 4.
       * @param[in]  src1            Input tensor for the RHS matrix. Data type supported: same as @p src0. The number of dimensions for the RHS matrix must be less or equal than 3.
       * @param[in]  src2            Input tensor containing the bias matrix. Data type supported: same as @p src0.
       * @param[out] dst             dst tensor info. Data type supported: same as @p src0
       * @param[in]  alpha           Weight of the matrix product
       * @param[in]  beta            Weight of the matrix bias
       * @param[in]  lhs_info        LHS matrix information used to retrieve the number of rows and accumulations to be processed by each thread. Only the following values are supported:
       *                             lhs_info.m0: 1,2,3,4,5,6,7,8
       *                             lhs_info.k0: 2,3,4,8,16
       * @param[in]  rhs_info        RHS matrix information used to retrieve the number of columns and accumulations to be processed by each thread. Only the following values are supported:
       *                             rhs_info.n0: 2,3,4,8,16
       *                             rhs_info.k0: same of lhs_info.k0
       * @param[in]  gemm_info       GEMM information used to retrieve the original dimensions of the input matrices
       */
      void configure(const ClCompileContext &compile_context, ITensorInfo *src0, ITensorInfo *src1, ITensorInfo *src2, ITensorInfo *dst, float alpha, float beta,
                     const GEMMLHSMatrixInfo &lhs_info,
                     const GEMMRHSMatrixInfo &rhs_info,
                     const GEMMKernelInfo    &gemm_info);
      /** Static function to check if given info will lead to a valid configuration
       *
       * Similar to @ref ClGemmMatrixMultiplyNativeKernel::configure()
       *
       * @return a status
       */
      static Status validate(const ITensorInfo *src0, const ITensorInfo *src1, const ITensorInfo *src2, const ITensorInfo *dst, float alpha, float beta, const GEMMLHSMatrixInfo &lhs_info,
                             const GEMMRHSMatrixInfo &rhs_info,
                             const GEMMKernelInfo    &gemm_info);
  
      // Inherited methods overridden:
      void run_op(ITensorPack &tensors, const Window &window, cl::CommandQueue &queue) override;
  
  private:
      bool _slide_matrix_b{ true };
      bool _reinterpret_input_as_3d{ false };
      bool _reinterpret_output_as_3d{ false };
      bool _use_dummy_work_items{ false };
      bool _add_bias{ false };
  };
  } // namespace kernels
  } // namespace opencl
  } // namespace arm_compute
  #endif /* ARM_COMPUTE_CL_GEMM_MATRIXMULTIPLY_NATIVE_KERNEL_H */
  