| /* |
| * Copyright (c) 2018 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" |
| |
| #if defined(DATA_TYPE) && defined(BLOCK_SIZE) && defined(NUM_GROUPS) && defined(K) |
| |
| // Check valid BLOCK_SIZES |
| #if BLOCK_SIZE != 4 && BLOCK_SIZE != 8 && BLOCK_SIZE != 16 |
| #error "Only block sizes 4, 8 and 16 are supported" |
| #endif /* BLOCK_SIZE != 4 && BLOCK_SIZE != 8 && BLOCK_SIZE != 16 */ |
| |
| #define TYPE VEC_DATA_TYPE(DATA_TYPE, BLOCK_SIZE) |
| |
| /** Perfoms channel shuffle see https://arxiv.org/pdf/1707.01083.pdf for details. |
| * |
| * @note The number of groups should be given as a preprocessor argument using -DNUM_GROUPS=num_groups. e.g. -DNUM_GROUPS=2 |
| * @note The number of channels in each group should be given as a preprocessor argument using -DK=num. e.g. -DK=1 |
| * K is equal to num_channels / num_groups. |
| * |
| * @param[in] src_ptr Pointer to the source matrix. Supported data types: U8/S8/QS8/QASYMM8/U16/S16/QS16/F16/U32/S32/F32 |
| * @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_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_offset_first_element_in_bytes The offset of the first element in the destination tensor |
| */ |
| __kernel void channel_shuffle_nchw(TENSOR3D_DECLARATION(src), |
| TENSOR3D_DECLARATION(dst)) |
| { |
| Tensor3D src = CONVERT_TO_TENSOR3D_STRUCT(src); |
| Tensor3D dst = CONVERT_TO_TENSOR3D_STRUCT_NO_STEP(dst); |
| |
| const uint curr_channel = get_global_id(2); // channel id of input |
| const uint group_id = curr_channel / K; // group id |
| const uint channel_id = curr_channel % K; // channel id within the group |
| |
| const uint x = get_global_id(0) * BLOCK_SIZE; |
| const uint y = get_global_id(1) * BLOCK_SIZE; |
| const uint z = channel_id * NUM_GROUPS + group_id; |
| |
| // Load the NxN block |
| TYPE u0 = VLOAD(BLOCK_SIZE)(0, (__global DATA_TYPE *)tensor3D_offset(&src, 0, 0, 0)); |
| TYPE u1 = VLOAD(BLOCK_SIZE)(0, (__global DATA_TYPE *)tensor3D_offset(&src, 0, 1, 0)); |
| TYPE u2 = VLOAD(BLOCK_SIZE)(0, (__global DATA_TYPE *)tensor3D_offset(&src, 0, 2, 0)); |
| TYPE u3 = VLOAD(BLOCK_SIZE)(0, (__global DATA_TYPE *)tensor3D_offset(&src, 0, 3, 0)); |
| #if BLOCK_SIZE > 4 |
| TYPE u4 = VLOAD(BLOCK_SIZE)(0, (__global DATA_TYPE *)tensor3D_offset(&src, 0, 4, 0)); |
| TYPE u5 = VLOAD(BLOCK_SIZE)(0, (__global DATA_TYPE *)tensor3D_offset(&src, 0, 5, 0)); |
| TYPE u6 = VLOAD(BLOCK_SIZE)(0, (__global DATA_TYPE *)tensor3D_offset(&src, 0, 6, 0)); |
| TYPE u7 = VLOAD(BLOCK_SIZE)(0, (__global DATA_TYPE *)tensor3D_offset(&src, 0, 7, 0)); |
| #if BLOCK_SIZE == 16 |
| TYPE u8 = VLOAD(BLOCK_SIZE)(0, (__global DATA_TYPE *)tensor3D_offset(&src, 0, 8, 0)); |
| TYPE u9 = VLOAD(BLOCK_SIZE)(0, (__global DATA_TYPE *)tensor3D_offset(&src, 0, 9, 0)); |
| TYPE u10 = VLOAD(BLOCK_SIZE)(0, (__global DATA_TYPE *)tensor3D_offset(&src, 0, 10, 0)); |
| TYPE u11 = VLOAD(BLOCK_SIZE)(0, (__global DATA_TYPE *)tensor3D_offset(&src, 0, 11, 0)); |
| TYPE u12 = VLOAD(BLOCK_SIZE)(0, (__global DATA_TYPE *)tensor3D_offset(&src, 0, 12, 0)); |
| TYPE u13 = VLOAD(BLOCK_SIZE)(0, (__global DATA_TYPE *)tensor3D_offset(&src, 0, 13, 0)); |
| TYPE u14 = VLOAD(BLOCK_SIZE)(0, (__global DATA_TYPE *)tensor3D_offset(&src, 0, 14, 0)); |
| TYPE u15 = VLOAD(BLOCK_SIZE)(0, (__global DATA_TYPE *)tensor3D_offset(&src, 0, 15, 0)); |
| #endif /* BLOCK_SIZE == 16 */ |
| #endif /* BLOCK_SIZE > 4 */ |
| |
| // Store blocks |
| VSTORE(BLOCK_SIZE) |
| (u0, 0, (__global DATA_TYPE *)tensor3D_offset(&dst, x, y + 0, z)); |
| VSTORE(BLOCK_SIZE) |
| (u1, 0, (__global DATA_TYPE *)tensor3D_offset(&dst, x, y + 1, z)); |
| VSTORE(BLOCK_SIZE) |
| (u2, 0, (__global DATA_TYPE *)tensor3D_offset(&dst, x, y + 2, z)); |
| VSTORE(BLOCK_SIZE) |
| (u3, 0, (__global DATA_TYPE *)tensor3D_offset(&dst, x, y + 3, z)); |
| #if BLOCK_SIZE > 4 |
| VSTORE(BLOCK_SIZE) |
| (u4, 0, (__global DATA_TYPE *)tensor3D_offset(&dst, x, y + 4, z)); |
| VSTORE(BLOCK_SIZE) |
| (u5, 0, (__global DATA_TYPE *)tensor3D_offset(&dst, x, y + 5, z)); |
| VSTORE(BLOCK_SIZE) |
| (u6, 0, (__global DATA_TYPE *)tensor3D_offset(&dst, x, y + 6, z)); |
| VSTORE(BLOCK_SIZE) |
| (u7, 0, (__global DATA_TYPE *)tensor3D_offset(&dst, x, y + 7, z)); |
| #if BLOCK_SIZE == 16 |
| VSTORE(BLOCK_SIZE) |
| (u8, 0, (__global DATA_TYPE *)tensor3D_offset(&dst, x, y + 8, z)); |
| VSTORE(BLOCK_SIZE) |
| (u9, 0, (__global DATA_TYPE *)tensor3D_offset(&dst, x, y + 9, z)); |
| VSTORE(BLOCK_SIZE) |
| (u10, 0, (__global DATA_TYPE *)tensor3D_offset(&dst, x, y + 10, z)); |
| VSTORE(BLOCK_SIZE) |
| (u11, 0, (__global DATA_TYPE *)tensor3D_offset(&dst, x, y + 11, z)); |
| VSTORE(BLOCK_SIZE) |
| (u12, 0, (__global DATA_TYPE *)tensor3D_offset(&dst, x, y + 12, z)); |
| VSTORE(BLOCK_SIZE) |
| (u13, 0, (__global DATA_TYPE *)tensor3D_offset(&dst, x, y + 13, z)); |
| VSTORE(BLOCK_SIZE) |
| (u14, 0, (__global DATA_TYPE *)tensor3D_offset(&dst, x, y + 14, z)); |
| VSTORE(BLOCK_SIZE) |
| (u15, 0, (__global DATA_TYPE *)tensor3D_offset(&dst, x, y + 15, z)); |
| #endif /* BLOCK_SIZE == 16 */ |
| #endif /* BLOCK_SIZE > 4 */ |
| } |
| #endif /* defined(DATA_TYPE) && defined(BLOCK_SIZE) && defined(NUM_GROUPS) && defined(K) */ |