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+/*
+ * 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_GEMMLOWP_MATRIXMULTIPLY_NATIVE_KERNEL_H
+#define ARM_COMPUTE_CL_GEMMLOWP_MATRIXMULTIPLY_NATIVE_KERNEL_H
+
+#include "arm_compute/core/KernelDescriptors.h"
+
+#include "src/core/common/Macros.h"
+#include "src/gpu/cl/ClCompileContext.h"
+#include "src/gpu/cl/IClKernel.h"
+
+namespace arm_compute
+{
+namespace opencl
+{
+namespace kernels
+{
+/** OpenCL kernel to multiply matrices with QASYMM8/QASYMM8_SIGNED data type */
+class ClGemmLowpMatrixMultiplyNativeKernel : public IClKernel
+{
+public:
+ ClGemmLowpMatrixMultiplyNativeKernel();
+ ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE(ClGemmLowpMatrixMultiplyNativeKernel);
+ /** Initialise the kernel's input and dst.
+ *
+ * @param[in] compile_context The compile context to be used.
+ * @param[in] src0 Source tensor containing the LHS matrix. Data type supported: QASYMM8/QASYMM8_SIGNED
+ * @param[in] src1 Source tensor containing the RHS matrix. Data type supported: same as @p src0
+ * @param[out] dst Destination tensor to store the result of matrix multiplication. Data type supported: S32
+ * @param[in] lhs_info LHS matrix information used to retrieve the number of rows to be processed by each thread
+ * lhs_info.m0: 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 to be processed by each thread
+ * rhs_info.n0: 2,3,4,8,16
+ * rhs_info.k0: same as 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,
+ const ITensorInfo *src0,
+ ITensorInfo *src1,
+ ITensorInfo *dst,
+ const GEMMLHSMatrixInfo &lhs_info,
+ const GEMMRHSMatrixInfo &rhs_info,
+ const GEMMReshapeInfo &gemm_info);
+ /** Static function to check if given info will lead to a valid configuration
+ *
+ * Similar to @ref ClGemmLowpMatrixMultiplyNativeKernel::configure()
+ *
+ * @return a status
+ */
+ static Status validate(const ITensorInfo *src0,
+ const ITensorInfo *src1,
+ const ITensorInfo *dst,
+ const GEMMLHSMatrixInfo &lhs_info,
+ const GEMMRHSMatrixInfo &rhs_info,
+ const GEMMReshapeInfo &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};
+};
+} // namespace kernels
+} // namespace opencl
+} // namespace arm_compute
+#endif /* ARM_COMPUTE_CL_GEMMLOWP_MATRIXMULTIPLY_NATIVE_KERNEL_H */