/* * 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) */