1/* 2 * Copyright (c) 2018-2021 Arm Limited. 3 * 4 * SPDX-License-Identifier: MIT 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in all 14 * copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24#include "helpers.h" 25 26#if defined(DATA_TYPE) && defined(VEC_SIZE) && defined(VEC_SIZE_LEFTOVER) 27/** Performs a copy of input tensor to the output tensor. 28 * 29 * @note The following variables must be passed at compile time: 30 * -# -DDATA_TYPE : Input and output datatypes. 31 * -# -DVEC_SIZE : The number of elements processed in X dimension 32 * -# -DVEC_SIZE_LEFTOVER: Leftover size in the X dimension; x_dimension % VEC_SIZE 33 * 34 * @param[in] in_ptr Pointer to the source tensor. Supported data types: All 35 * @param[in] in_stride_x Stride of the source tensor in X dimension (in bytes) 36 * @param[in] in_step_x input_stride_x * number of elements along X processed per workitem(in bytes) 37 * @param[in] in_stride_y Stride of the source tensor in Y dimension (in bytes) 38 * @param[in] in_step_y input_stride_y * number of elements along Y processed per workitem(in bytes) 39 * @param[in] in_stride_z Stride of the source tensor in Z dimension (in bytes) 40 * @param[in] in_step_z input_stride_z * number of elements along Z processed per workitem(in bytes) 41 * @param[in] in_offset_first_element_in_bytes The offset of the first element in the source tensor 42 * @param[out] out_ptr Pointer to the destination tensor. Supported data types: same as @p in_ptr 43 * @param[in] out_stride_x Stride of the destination tensor in X dimension (in bytes) 44 * @param[in] out_step_x output_stride_x * number of elements along X processed per workitem(in bytes) 45 * @param[in] out_stride_y Stride of the destination tensor in Y dimension (in bytes) 46 * @param[in] out_step_y output_stride_y * number of elements along Y processed per workitem(in bytes) 47 * @param[in] out_stride_z Stride of the source tensor in Z dimension (in bytes) 48 * @param[in] out_step_z output_stride_z * number of elements along Z processed per workitem(in bytes) 49 * @param[in] out_offset_first_element_in_bytes The offset of the first element in the destination tensor 50 */ 51__kernel void copy_tensor( 52 TENSOR3D_DECLARATION(in), 53 TENSOR3D_DECLARATION(out)) 54{ 55 Tensor3D in = CONVERT_TO_TENSOR3D_STRUCT(in); 56 Tensor3D out = CONVERT_TO_TENSOR3D_STRUCT(out); 57 58 // Boundary-aware access: 59 // If the there's left-over in width (VEC_SIZE_LEFTOVER > 0): 60 // Shift all accesses other than the first to avoid accessing out of bounds 61 const int shift = max((int)(get_global_id(0) * VEC_SIZE) - (int)VEC_SIZE_LEFTOVER, 0) % VEC_SIZE; 62 in.ptr -= shift * in.stride_x; 63 out.ptr -= shift * out.stride_x; 64 65 // Load data 66 VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE) 67 data0 = VLOAD(VEC_SIZE)(0, (__global DATA_TYPE *)in.ptr); 68 69 // Boundary-aware store 70 STORE_VECTOR_SELECT(data, DATA_TYPE, (__global DATA_TYPE *)out.ptr, VEC_SIZE, VEC_SIZE_LEFTOVER, VEC_SIZE_LEFTOVER != 0 && get_global_id(0) == 0); 71} 72#endif // defined(DATA_TYPE) && defined(VEC_SIZE) && defined(VEC_SIZE_LEFTOVER)