Adnan AlSinan | 7075fe2 | 2021-07-05 13:12:52 +0100 | [diff] [blame] | 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 | #include "tile_helpers.h" |
| 26 | |
| 27 | #if defined(DATA_TYPE) && defined(VEC_SIZE) && defined(NUM_GROUPS) && defined(K) && defined(SRC_DIM_Z) |
| 28 | |
| 29 | // Check valid VEC_SIZES |
| 30 | #if VEC_SIZE != 1 && VEC_SIZE != 2 && VEC_SIZE != 3 && VEC_SIZE != 4 && VEC_SIZE != 8 && VEC_SIZE != 16 |
| 31 | #error "Only vector sizes 1, 2, 3, 4, 8 and 16 are supported" |
| 32 | #endif // VEC_SIZE != 1 && VEC_SIZE != 2 && VEC_SIZE != 3 && VEC_SIZE != 4 && VEC_SIZE != 8 && VEC_SIZE != 16 |
| 33 | |
| 34 | #define DIV_MOD_UINT(x, y, div_res, mod_res) \ |
| 35 | ({ \ |
Pablo Marquez Tello | 3611852 | 2021-10-18 10:50:31 +0100 | [diff] [blame] | 36 | div_res = (uint)((x)/(y)); \ |
Adnan AlSinan | 7075fe2 | 2021-07-05 13:12:52 +0100 | [diff] [blame] | 37 | uint r = div_res * (y); \ |
| 38 | mod_res = (x)-r; \ |
| 39 | }) |
| 40 | |
| 41 | /** Performs channel shuffle when the data layout is NCHW. See https://arxiv.org/pdf/1707.01083.pdf for details. |
| 42 | * |
| 43 | * @note The vector size must be given as a preprocessor argument using -DVEC_SIZE=num. e.g. -DVEC_SIZE=4 |
| 44 | * @note The depth of the tensor must be given as a preprocessor argument using -DSRC_DIM_Z=num. e.g. -DSRC_DIM_Z=64 |
| 45 | * @note The number of groups must be given as a preprocessor argument using -DNUM_GROUPS=num_groups. e.g. -DNUM_GROUPS=2 |
| 46 | * @note The number of channels in each group must be given as a preprocessor argument using -DK=num. e.g. -DK=1 |
| 47 | * K is equal to num_channels / num_groups. |
| 48 | * |
| 49 | * @param[in] src_ptr Pointer to the source matrix. Supported data types: All |
| 50 | * @param[in] src_stride_x Stride of the first source tensor in X dimension (in bytes) |
| 51 | * @param[in] src_step_x src_stride_x * number of elements along X processed per workitem(in bytes) |
| 52 | * @param[in] src_stride_y Stride of the first source tensor in Y dimension (in bytes) |
| 53 | * @param[in] src_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) |
| 54 | * @param[in] src_stride_z Stride of the first source tensor in Z dimension (in bytes) |
| 55 | * @param[in] src_step_z src_stride_z * number of elements along Z processed per workitem(in bytes) |
| 56 | * @param[in] src_stride_w Stride of the first source tensor in Z dimension (in bytes) |
| 57 | * @param[in] src_step_w src_stride_z * number of elements along Z processed per workitem(in bytes) |
| 58 | * @param[in] src_offset_first_element_in_bytes The offset of the first element in the first source tensor |
| 59 | * @param[out] dst_ptr Pointer to the destination tensor. Supported data types: same as @p src_ptr |
| 60 | * @param[in] dst_stride_x Stride of the destination tensor in X dimension (in bytes) |
| 61 | * @param[in] dst_step_x output_stride_x * number of elements along X processed per workitem(in bytes) |
| 62 | * @param[in] dst_stride_y Stride of the destination tensor in Y dimension (in bytes) |
| 63 | * @param[in] dst_step_y output_stride_y * number of elements along Y processed per workitem(in bytes) |
| 64 | * @param[in] dst_stride_z Stride of the destination tensor in Z dimension (in bytes) |
| 65 | * @param[in] dst_step_z output_stride_z * number of elements along Z processed per workitem(in bytes) |
| 66 | * @param[in] dst_stride_w Stride of the destination tensor in Z dimension (in bytes) |
| 67 | * @param[in] dst_step_w output_stride_z * number of elements along Z processed per workitem(in bytes) |
| 68 | * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination tensor |
| 69 | */ |
| 70 | __kernel void channel_shuffle_nchw(TENSOR4D_DECLARATION(src), |
| 71 | TENSOR4D_DECLARATION(dst)) |
| 72 | { |
| 73 | uint curr_channel = 0; // channel id of input |
| 74 | uint batch_id = 0; // batch id |
| 75 | uint group_id = 0; // group id |
| 76 | uint channel_id = 0; // channel id within the group |
| 77 | |
| 78 | // Compute curr_channel and batch_id |
| 79 | DIV_MOD_UINT(get_global_id(2), SRC_DIM_Z, batch_id, curr_channel); |
| 80 | |
| 81 | // Compute group_id and channel_id |
| 82 | DIV_MOD_UINT(curr_channel, K, group_id, channel_id); |
| 83 | |
| 84 | const uint x = get_global_id(0) * VEC_SIZE; |
| 85 | const uint y = get_global_id(1) * 2; |
| 86 | const uint z = channel_id * NUM_GROUPS + group_id; |
| 87 | |
| 88 | // Load the Nx2 block |
| 89 | const __global uchar *input_ptr = src_ptr + src_offset_first_element_in_bytes + x * sizeof(DATA_TYPE) + y * src_stride_y + curr_channel * src_stride_z + batch_id * src_stride_w; |
| 90 | VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE) |
| 91 | u0 = VLOAD(VEC_SIZE)(0, (__global DATA_TYPE *)(input_ptr + 0 * src_stride_y)); |
| 92 | VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE) |
| 93 | u1 = VLOAD(VEC_SIZE)(0, (__global DATA_TYPE *)(input_ptr + 1 * src_stride_y)); |
| 94 | |
| 95 | // Store blocks |
| 96 | __global uchar *output_ptr = dst_ptr + dst_offset_first_element_in_bytes + x * sizeof(DATA_TYPE) + y * dst_stride_y + z * dst_stride_z + batch_id * dst_stride_w; |
| 97 | VSTORE(VEC_SIZE) |
| 98 | (u0, 0, (__global DATA_TYPE *)(output_ptr + 0 * dst_stride_y)); |
| 99 | VSTORE(VEC_SIZE) |
| 100 | (u1, 0, (__global DATA_TYPE *)(output_ptr + 1 * dst_stride_y)); |
| 101 | } |
| 102 | |
Pablo Marquez Tello | 3611852 | 2021-10-18 10:50:31 +0100 | [diff] [blame] | 103 | #endif // defined(DATA_TYPE) && defined(VEC_SIZE) && defined(NUM_GROUPS) && defined(K) && defined(SRC_DIM_Z) |