From 5daeffdd96c5e46ac2482431d578dfaf9b300cde Mon Sep 17 00:00:00 2001 From: Michele Di Giorgio Date: Mon, 26 Nov 2018 10:01:15 +0000 Subject: COMPMID-1723: CL: Implement Reverse Change-Id: Id0d4a07af24e2331161996083b0c1bab072bd405 Reviewed-on: https://review.mlplatform.org/322 Reviewed-by: Georgios Pinitas Tested-by: Arm Jenkins --- src/core/CL/cl_kernels/reverse.cl | 102 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 102 insertions(+) create mode 100644 src/core/CL/cl_kernels/reverse.cl (limited to 'src/core/CL/cl_kernels/reverse.cl') diff --git a/src/core/CL/cl_kernels/reverse.cl b/src/core/CL/cl_kernels/reverse.cl new file mode 100644 index 0000000000..6afd382fec --- /dev/null +++ b/src/core/CL/cl_kernels/reverse.cl @@ -0,0 +1,102 @@ +/* +* 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(NUM_REVERSE_DIMS) + +#if NUM_REVERSE_DIMS > 4 +#error("Reversing more than 4 dimensions is not currently supported") +#endif /* NUM_REVERSE_DIMS > 4 */ + +/** Performs reverse along the specified axis. + * + * @note The data type must be given as a preprocessor argument using -DDATA_TYPE=num. e.g. -DDATA_TYPE=uint + * @note The number of dimensions to reverse must be given as a preprocessor argument using -DNUM_REVERSE_DIMS=num, e.g. -DNUM_REVERSE_DIMS=3 + * + * @param[in] src_ptr Pointer to the source tensor. Supported data types: U8/S8/QASYMM8/U16/S16/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_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[in] axis_ptr Pointer to the source vector. Supported data types: U32 + * @param[in] axis_stride_x Stride of the first source tensor in X dimension (in bytes) + * @param[in] axis_step_x src_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] axis_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 reverse(TENSOR4D_DECLARATION(src), + VECTOR_DECLARATION(axis), + TENSOR4D_DECLARATION(dst), + const uint width, + const uint height, + const uint depth, + const uint batches) +{ + Tensor4D src = CONVERT_TO_TENSOR4D_STRUCT(src, depth); + Vector axis = CONVERT_TO_VECTOR_STRUCT_NO_STEP(axis); + Tensor4D dst = CONVERT_TO_TENSOR4D_STRUCT_NO_STEP(dst, depth); + + const uint x_in = get_global_id(0); + const uint y_in = get_global_id(1); + const uint z_in = get_global_id(2) % depth; + const uint w_in = get_global_id(2) / depth; + + const uint4 dims = (uint4)(0, 1, 2, 3); + int4 to_reverse = (int4)(0, 0, 0, 0); +#if NUM_REVERSE_DIMS == 1 + const uint index = *((__global uint *)axis.ptr); + to_reverse = (uint4)index == dims; +#elif NUM_REVERSE_DIMS == 2 + const uint2 indices = vload2(0, (__global uint *)axis.ptr); + to_reverse = ((uint4)indices.s0 == dims) || ((uint4)indices.s1 == dims); +#elif NUM_REVERSE_DIMS == 3 + const uint2 indices01 = vload2(0, (__global uint *)axis.ptr); + const uint index2 = *((__global uint *)axis.ptr + 2); + to_reverse = ((uint4)indices01.s0 == dims) || ((uint4)indices01.s1 == dims) || ((uint4)index2 == dims); +#else /* NUM_REVERSE_DIMS == 3 */ + const uint4 indices = vload4(0, (__global uint *)axis.ptr); + to_reverse = ((uint4)indices.s0 == dims) || ((uint4)indices.s1 == dims) || ((uint4)indices.s2 == dims) || ((uint4)indices.s3 == dims); +#endif /* NUM_REVERSE_DIMS == 1 */ + const uint x_out = to_reverse.s0 ? width - x_in - 1 : x_in; + const uint y_out = to_reverse.s1 ? height - y_in - 1 : y_in; + const uint z_out = to_reverse.s2 ? depth - z_in - 1 : z_in; + const uint w_out = to_reverse.s3 ? batches - w_in - 1 : w_in; + + *((__global DATA_TYPE *)tensor4D_offset(&dst, x_out, y_out, z_out, w_out)) = *((__global DATA_TYPE *)src.ptr); +} +#endif // defined(DATA_TYPE) && defined(NUM_REVERSE_DIMS) -- cgit v1.2.1