diff options
Diffstat (limited to 'src/core/NEON/kernels/arm_conv/depthwise/depthwise_common.cpp')
-rw-r--r-- | src/core/NEON/kernels/arm_conv/depthwise/depthwise_common.cpp | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/core/NEON/kernels/arm_conv/depthwise/depthwise_common.cpp b/src/core/NEON/kernels/arm_conv/depthwise/depthwise_common.cpp new file mode 100644 index 0000000000..c2b861000c --- /dev/null +++ b/src/core/NEON/kernels/arm_conv/depthwise/depthwise_common.cpp @@ -0,0 +1,65 @@ +/* + * Copyright (c) 2023 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 "src/core/NEON/kernels/arm_gemm/utils.hpp" +#include "depthwise_common.hpp" + +using arm_gemm::iceildiv; + +namespace arm_conv { +namespace depthwise { + +std::tuple<size_t, size_t, size_t, size_t, size_t> +get_reduced_view_for_dilation(size_t out_size, size_t in_size, const size_t d, + const size_t dilation_factor, + const size_t kernel_size, const size_t stride, + const size_t orig_pad_before) { + // Get the valid output range + out_size = iceildiv(out_size - d, dilation_factor); + + // Compute the start offset and the amount of padding which applies to this + // portion of the work. + size_t start_pos = d * stride, pad_before = 0; + if (start_pos < orig_pad_before) { + pad_before = iceildiv(orig_pad_before - start_pos, dilation_factor); + } + start_pos += pad_before * dilation_factor - orig_pad_before; + + // Hence compute the valid input range + in_size = start_pos < in_size + ? iceildiv(in_size - start_pos, dilation_factor) + : 0; + + // Finally, compute the "after" padding + const size_t reqd_input = (out_size - 1) * stride + kernel_size; + size_t pad_after = 0; + if (reqd_input > (pad_before + in_size)) { + pad_after = reqd_input - (pad_before + in_size); + } + + return std::make_tuple(out_size, in_size, start_pos, pad_before, pad_after); +} + +} // namespace depthwise +} // namespace arm_conv |