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(AXIS) && defined(SRC_DIM2) && defined(DST_DIM3) 27 28#if AXIS == 0 29#define X_DST (idx_input) 30#define Y_DST (x_src) 31#define Z_DST (y_src) 32#define W_DST (z_src) 33#define K_DST (w_src) 34#elif AXIS == 1 // AXIS == 1 35#define X_DST (x_src) 36#define Y_DST (idx_input) 37#define Z_DST (y_src) 38#define W_DST (z_src) 39#define K_DST (w_src) 40#elif AXIS == 2 // AXIS == 2 41#define X_DST (x_src) 42#define Y_DST (y_src) 43#define Z_DST (idx_input) 44#define W_DST (z_src) 45#define K_DST (w_src) 46#elif AXIS == 3 // AXIS == 3 47#define X_DST (x_src) 48#define Y_DST (y_src) 49#define Z_DST (z_src) 50#define W_DST (idx_input) 51#define K_DST (w_src) 52#elif AXIS == 4 // AXIS == 4 53#define X_DST (x_src) 54#define Y_DST (y_src) 55#define Z_DST (z_src) 56#define W_DST (w_src) 57#define K_DST (idx_input) 58#else // AXIS not supported 59#error "Not supported axis" 60#endif // AXIS == 0 61 62/** OpenCL kernel to stack a rank-R tensor into one with rank-(R+1) along the axis dimension 63 * 64 * @note The data type has to be passed at compile time using -DDATA_TYPE. i.e. -DDATA_TYPE=float 65 * @note The dimension to stack the tensors along has to be passed at compile time using -DAXIS. i.e. -DAXIS=1 66 * @note Dimension 2 of the input tensor must be passed at compile time using -DSRC_DIM2 (e.g. -DSRC_DIM2=112) 67 * @note Dimension 3 of the output tensor must be passed at compile time using -DDST_DIM3 (e.g. -DDST_DIM3=112) 68 * 69 * @param[in] src_ptr Pointer to the source tensor. Supported data types: All 70 * @param[in] src_stride_x Stride of the source tensor in X dimension (in bytes) 71 * @param[in] src_step_x src_stride_x * number of elements along X processed per workitem(in bytes) 72 * @param[in] src_stride_y Stride of the source tensor in Y dimension (in bytes) 73 * @param[in] src_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) 74 * @param[in] src_stride_z Stride of the source tensor in Z dimension (in bytes) 75 * @param[in] src_step_z src_stride_z * number of elements along Z processed per workitem(in bytes) 76 * @param[in] src_stride_w Stride of the source tensor in W dimension (in bytes) 77 * @param[in] src_step_w src_stride_w * number of elements along W processed per workitem(in bytes) 78 * @param[in] src_offset_first_element_in_bytes The offset of the first element in the source tensor 79 * @param[out] dst_ptr Pointer to the destination tensor. Supported data types: same as @p src_ptr 80 * @param[in] dst_stride_x Stride of the destination tensor in X dimension (in bytes) 81 * @param[in] dst_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) 82 * @param[in] dst_stride_y Stride of the destination tensor in Y dimension (in bytes) 83 * @param[in] dst_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes) 84 * @param[in] dst_stride_z Stride of the source tensor in Z dimension (in bytes) 85 * @param[in] dst_step_z dst_stride_z * number of elements along Z processed per workitem(in bytes) 86 * @param[in] dst_stride_w Stride of the source tensor in W dimension (in bytes) 87 * @param[in] dst_step_w dst_stride_w * number of elements along W processed per workitem(in bytes) 88 * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination tensor 89 * @param[in] idx_input Index of the input tensor in the list of tensors to stack 90 */ 91__kernel void stack_layer( 92 TENSOR4D_DECLARATION(src), 93 TENSOR4D_DECLARATION(dst), 94 unsigned int idx_input) 95{ 96 uint x_src = get_global_id(0); 97 uint y_src = get_global_id(1); 98 uint z_src = (get_global_id(2) % SRC_DIM2); 99 uint w_src = (get_global_id(2) / SRC_DIM2); 100 101 __global DATA_TYPE *src = (__global DATA_TYPE *)(src_ptr + src_offset_first_element_in_bytes + x_src * sizeof(DATA_TYPE) + y_src * src_stride_y + z_src * src_stride_z + w_src * src_stride_w); 102 103 __global DATA_TYPE *dst = (__global DATA_TYPE *)(dst_ptr + dst_offset_first_element_in_bytes + X_DST * sizeof(DATA_TYPE) + Y_DST * dst_stride_y + Z_DST * dst_stride_z + W_DST * dst_stride_w + K_DST * 104 dst_stride_w * (uint)DST_DIM3); 105 106 *dst = *src; 107} 108 109#undef X_DST 110#undef Y_DST 111#undef Z_DST 112#undef W_DST 113#endif // defined(DATA_TYPE) && defined(AXIS) && defined(SRC_DIM2) && defined(DST_DIM3) 114