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diff --git a/src/gpu/cl/kernels/helpers/MatMulKernelHelpers.h b/src/gpu/cl/kernels/helpers/MatMulKernelHelpers.h
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+++ b/src/gpu/cl/kernels/helpers/MatMulKernelHelpers.h
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+/*
+ * Copyright (c) 2023 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 ACL_SRC_GPU_CL_KERNELS_HELPERS_MATMULKERNELHELPERS_H
+#define ACL_SRC_GPU_CL_KERNELS_HELPERS_MATMULKERNELHELPERS_H
+
+#include "arm_compute/core/Error.h"
+#include "arm_compute/core/KernelDescriptors.h"
+#include "arm_compute/core/TensorShape.h"
+#include "arm_compute/core/Window.h"
+
+namespace arm_compute
+{
+namespace opencl
+{
+namespace kernels
+{
+/** Validate the input shapes of Matmul operation
+ *
+ * @param[in] lhs_shape          Lhs tensor shape
+ * @param[in] rhs_shape          Rhs tensor shape
+ * @param[in] matmul_kernel_info Matmul kernel info
+ *
+ * @return true if the shapes and matmul kernel info matches
+ */
+Status validate_matmul_input_shapes(const TensorShape      &lhs_shape,
+                                    const TensorShape      &rhs_shape,
+                                    const MatMulKernelInfo &matmul_kernel_info);
+
+/** Validate and configure window for Matmul MMUL kernels
+ *
+ * @param[in] lhs                Lhs tensor info
+ * @param[in] rhs                Rhs tensor info
+ * @param[in] dst                Dst tensor info
+ * @param[in] matmul_kernel_info Matmul kernel info
+ * @param[in] mmul_m0            Number of rows in the MMUL block
+ * @param[in] mmul_n0            Number of columns in the MMUL block
+ *
+ * @return a pair of Status and Window object
+ */
+std::pair<Status, Window> validate_and_configure_window_for_mmul_kernels(const ITensorInfo      *lhs,
+                                                                         const ITensorInfo      *rhs,
+                                                                         const ITensorInfo      *dst,
+                                                                         const MatMulKernelInfo &matmul_kernel_info,
+                                                                         int                     mmul_m0,
+                                                                         int                     mmul_n0);
+} // namespace kernels
+} // namespace opencl
+} // namespace arm_compute
+
+#endif // ACL_SRC_GPU_CL_KERNELS_HELPERS_MATMULKERNELHELPERS_H