| /* |
| * Copyright (c) 2018-2021 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. |
| */ |
| #include "helpers.h" |
| #include "tile_helpers.h" |
| |
| #if defined(DATA_TYPE) && defined(VEC_SIZE) && defined(NUM_GROUPS) && defined(K) && defined(SRC_DIM_Z) |
| |
| // Check valid VEC_SIZES |
| #if VEC_SIZE != 1 && VEC_SIZE != 2 && VEC_SIZE != 3 && VEC_SIZE != 4 && VEC_SIZE != 8 && VEC_SIZE != 16 |
| #error "Only vector sizes 1, 2, 3, 4, 8 and 16 are supported" |
| #endif // VEC_SIZE != 1 && VEC_SIZE != 2 && VEC_SIZE != 3 && VEC_SIZE != 4 && VEC_SIZE != 8 && VEC_SIZE != 16 |
| |
| #define DIV_MOD_UINT(x, y, div_res, mod_res) \ |
| ({ \ |
| div_res = (uint)((x) * (float)(1.0f / (float)(y))); \ |
| uint r = div_res * (y); \ |
| mod_res = (x)-r; \ |
| }) |
| |
| #if defined(VEC_SIZE) && defined(VEC_SIZE_LEFTOVER) && defined(SRC_DIM_X) |
| |
| /** Performs channel shuffle when the data layout is NHWC. See https://arxiv.org/pdf/1707.01083.pdf for details. |
| * |
| * @note The vector size must be given as a preprocessor argument using -DVEC_SIZE=num. e.g. -DVEC_SIZE=4 |
| * @note The third dimension of the tensor must be given as a preprocessor argument using -DSRC_DIM_Z=num. e.g. -DSRC_DIM_Z=64 |
| * @note The first dimension of the tensor must be given as a preprocessor argument using -DSRC_DIM_X=num. e.g. -DSRC_DIM_X=64 |
| * @note The number of groups must be given as a preprocessor argument using -DNUM_GROUPS=num_groups. e.g. -DNUM_GROUPS=2 |
| * @note The number of channels in each group must be given as a preprocessor argument using -DK=num. e.g. -DK=1 |
| * K is equal to num_channels / num_groups. |
| * @note The leftover size in the X dimension shoud be given as preprocessor argument using -DVEC_SIZE_LEFTOVER is; x_dimension % VEC_SIZE. e.g. -DVEC_SIZE_LEFTOVER=1 |
| * |
| * @param[in] src_ptr Pointer to the source matrix. Supported data types: All |
| * @param[in] src_stride_x Stride of the first source tensor in X dimension (in bytes) |
| * @param[in] src_step_x src_stride_x * number of elements along X processed per workitem(in bytes) |
| * @param[in] src_stride_y Stride of the first source tensor in Y dimension (in bytes) |
| * @param[in] src_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) |
| * @param[in] src_stride_z Stride of the first source tensor in Z dimension (in bytes) |
| * @param[in] src_step_z src_stride_z * number of elements along Z processed per workitem(in bytes) |
| * @param[in] src_stride_w Stride of the first source tensor in Z dimension (in bytes) |
| * @param[in] src_step_w src_stride_z * number of elements along Z processed per workitem(in bytes) |
| * @param[in] src_offset_first_element_in_bytes The offset of the first element in the first source tensor |
| * @param[out] dst_ptr Pointer to the destination tensor. Supported data types: same as @p src_ptr |
| * @param[in] dst_stride_x Stride of the destination tensor in X dimension (in bytes) |
| * @param[in] dst_step_x output_stride_x * number of elements along X processed per workitem(in bytes) |
| * @param[in] dst_stride_y Stride of the destination tensor in Y dimension (in bytes) |
| * @param[in] dst_step_y output_stride_y * number of elements along Y processed per workitem(in bytes) |
| * @param[in] dst_stride_z Stride of the destination tensor in Z dimension (in bytes) |
| * @param[in] dst_step_z output_stride_z * number of elements along Z processed per workitem(in bytes) |
| * @param[in] dst_stride_w Stride of the destination tensor in Z dimension (in bytes) |
| * @param[in] dst_step_w output_stride_z * number of elements along Z processed per workitem(in bytes) |
| * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination tensor |
| */ |
| __kernel void channel_shuffle_nhwc(TENSOR4D_DECLARATION(src), |
| TENSOR4D_DECLARATION(dst)) |
| { |
| // Offset computation |
| const uint curr_out_channel = GET_SPATIAL_IDX(0, VEC_SIZE, VEC_SIZE_LEFTOVER); // output feature map |
| |
| uint z = 0; |
| uint batch_id = 0; |
| // Compute curr_channel and batch_id |
| DIV_MOD_UINT(get_global_id(2), (uint)SRC_DIM_Z, batch_id, z); |
| |
| VEC_DATA_TYPE(uint, VEC_SIZE) |
| curr_out_channels = (VEC_DATA_TYPE(uint, VEC_SIZE))(curr_out_channel) + VEC_OFFS(uint, VEC_SIZE); |
| |
| VEC_DATA_TYPE(uint, VEC_SIZE) |
| in_channels = (curr_out_channels * (VEC_DATA_TYPE(uint, VEC_SIZE))(K)) % (VEC_DATA_TYPE(uint, VEC_SIZE))(SRC_DIM_X) + (curr_out_channels / (VEC_DATA_TYPE(uint, VEC_SIZE))(NUM_GROUPS)); |
| |
| // Load the values |
| const __global DATA_TYPE *input_ptr = (const __global DATA_TYPE *)(src_ptr + src_offset_first_element_in_bytes + get_global_id(1) * src_stride_y + z * src_stride_z + batch_id * src_stride_w); |
| |
| #if VEC_SIZE == 1 |
| DATA_TYPE out0 = *((const __global * DATA_TYPE)(input_ptr) + in_channels); |
| #elif VEC_SIZE == 2 |
| VEC_DATA_TYPE(DATA_TYPE, 2) |
| out0 = |
| { |
| *(input_ptr + in_channels.s0), |
| *(input_ptr + in_channels.s1) |
| }; |
| #elif VEC_SIZE == 3 |
| VEC_DATA_TYPE(DATA_TYPE, 3) |
| out0 = |
| { |
| *(input_ptr + in_channels.s0), |
| *(input_ptr + in_channels.s1), |
| *(input_ptr + in_channels.s2) |
| }; |
| #elif VEC_SIZE == 4 |
| VEC_DATA_TYPE(DATA_TYPE, 4) |
| out0 = |
| { |
| *(input_ptr + in_channels.s0), |
| *(input_ptr + in_channels.s1), |
| *(input_ptr + in_channels.s2), |
| *(input_ptr + in_channels.s3) |
| }; |
| #elif VEC_SIZE == 8 |
| VEC_DATA_TYPE(DATA_TYPE, 8) |
| out0 = |
| { |
| *(input_ptr + in_channels.s0), |
| *(input_ptr + in_channels.s1), |
| *(input_ptr + in_channels.s2), |
| *(input_ptr + in_channels.s3), |
| *(input_ptr + in_channels.s4), |
| *(input_ptr + in_channels.s5), |
| *(input_ptr + in_channels.s6), |
| *(input_ptr + in_channels.s7) |
| }; |
| #elif VEC_SIZE == 16 |
| VEC_DATA_TYPE(DATA_TYPE, 16) |
| out0 = |
| { |
| *(input_ptr + in_channels.s0), |
| *(input_ptr + in_channels.s1), |
| *(input_ptr + in_channels.s2), |
| *(input_ptr + in_channels.s3), |
| *(input_ptr + in_channels.s4), |
| *(input_ptr + in_channels.s5), |
| *(input_ptr + in_channels.s6), |
| *(input_ptr + in_channels.s7), |
| *(input_ptr + in_channels.s8), |
| *(input_ptr + in_channels.s9), |
| *(input_ptr + in_channels.sa), |
| *(input_ptr + in_channels.sb), |
| *(input_ptr + in_channels.sc), |
| *(input_ptr + in_channels.sd), |
| *(input_ptr + in_channels.se), |
| *(input_ptr + in_channels.sf) |
| }; |
| #endif // VEC_SIZE == 1 |
| |
| __global uchar *output_ptr = dst_ptr + curr_out_channel * sizeof(DATA_TYPE) + dst_offset_first_element_in_bytes + get_global_id(1) * dst_stride_y + z * dst_stride_z + batch_id * dst_stride_w; |
| STORE_VECTOR_SELECT(out, DATA_TYPE, output_ptr, VEC_SIZE, VEC_SIZE_LEFTOVER, VEC_SIZE_LEFTOVER != 0 && get_global_id(0) == 0); |
| } |
| #endif // defined(VEC_SIZE) && defined(VEC_SIZE_LEFTOVER) && defined(SRC_DIM_X) |
| #endif // defined(DATA_TYPE) && defined(VEC_SIZE) && defined(NUM_GROUPS) && defined(K) && defined(SRC_DIM_Z) |