diff --git a/src/core/gpu/cl/kernels/ClWeightsReshapeKernel.h b/src/core/gpu/cl/kernels/ClWeightsReshapeKernel.h
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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_WEIGHTSRESHAPE_KERNEL_H
+#define ARM_COMPUTE_CL_WEIGHTSRESHAPE_KERNEL_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 perform reshaping on the weights used by convolution and locally connected layer
+ *
+ * Rearranges each 3-dimensional kernel to a single row leading to a matrix with linearized kernels.
+ * In combination with the @ref opencl::kernels::ClIm2ColKernel can transform a convolution to a matrix multiplication.
+ *
+ * For example assuming a 3D weight kernel of 3x3 dimensions and depth of 2 we have:
+ * @f[
+ * \left( \begin{array}{ccc}
+ * a000 & a001 & a002 \\
+ * a010 & a011 & a012 \\
+ * a020 & a021 & a022 \\
+ * \end{array} \right)
+ * \left( \begin{array}{ccc}
+ * a100 & a101 & a102 \\
+ * a110 & a111 & a112 \\
+ * a120 & a121 & a122 \\
+ * \end{array} \right)
+ * \rightarrow
+ * \left( \begin{array}{ccccccccc}
+ * a000 & a001 & a002 & a010 & a011 & a012 & a020 & a021 & a022 & a100 & a101 & a102 & a110 & a111 & a112 & a120 & a121 & a122 \\
+ * \end{array} \right)
+ * @f]
+ */
+class ClWeightsReshapeKernel : public IClKernel
+{
+public:
+    ClWeightsReshapeKernel();
+    ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE(ClWeightsReshapeKernel);
+    /** Set the input and output of the kernel.
+     *
+     * @param[in]  compile_context The compile context to be used.
+     * @param[in]  src             The input tensor info to convert. Weights are 4D tensor with dimensions [kernel_x, kernel_y, IFM, OFM] if shared,
+     *                             and 5D tensor with dimensions [kernel_x, kernel_y, IFM, OFM,  num_patches] if unshared. Data types supported: All
+     * @param[in]  biases          The shared biases tensor info to append.  Bias is 1D tensor with dimensions [OFM] if shared and 2D tensor with
+     *                             dimensions [OFM, num_patches] if unshared. Data types supported: F16/F32, for quantized types this must be nullptr.
+     *                             @warning Appending biases to weights reshaped matrix is not supported for quantized asymmetric types.
+     * @param[out] dst             The output tensor info. Should be a 2D Tensor if there are no groups and the weights are not shared; a 3D Tensor otherwise.
+     *                             Data types supported: Same as @p input
+     * @param[in]  num_groups      (Optional) Number of groups when performing a grouped convolution. num_groups != 1 is only supported for NCHW data layout
+     *                             Number of groups greater than one are only supported for NCHW data layout, and the number of weights must be a multiple of it.
+     */
+    void configure(const ClCompileContext &compile_context, const ITensorInfo *src, const ITensorInfo *biases, ITensorInfo *dst, unsigned int num_groups = 1);
+    /** Static function to check if given info will lead to a valid configuration
+     *
+     * Similar to ClWeightsReshapeKernel::configure()
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *src, const ITensorInfo *biases, const ITensorInfo *dst, unsigned int num_groups = 1);
+
+    // 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_WEIGHTSRESHAPE_KERNEL_H */
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