diff options
Diffstat (limited to 'src/cpu/kernels/scale/sve/fp16.cpp')
| -rw-r--r-- | src/cpu/kernels/scale/sve/fp16.cpp | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/cpu/kernels/scale/sve/fp16.cpp b/src/cpu/kernels/scale/sve/fp16.cpp new file mode 100644 index 0000000000..cb28f4cb1c --- /dev/null +++ b/src/cpu/kernels/scale/sve/fp16.cpp @@ -0,0 +1,123 @@ +/* + * Copyright (c) 2021-2022 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. + */ + +#if defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS) + +#include "arm_compute/core/Helpers.h" +#include "arm_compute/core/ITensorPack.h" +#include "arm_compute/core/Window.h" + +#include "src/core/helpers/ScaleHelpers.h" +#include "src/core/NEON/NEMath.h" +#include "src/core/NEON/wrapper/wrapper.h" +#include "src/core/utils/ScaleUtils.h" +#include "support/Rounding.h" + +#include <arm_sve.h> +#include <cmath> +#include <cstddef> + +namespace arm_compute +{ +namespace +{ +void fp16_sve_scale_nearest(const ITensor *src, + ITensor *dst, + const ITensor *offsets, + float sampling_offset, + bool align_corners, + const Window &window) +{ + const size_t in_stride_c = src->info()->dimension(0) + src->info()->padding().left + src->info()->padding().right; + const size_t in_stride_w = src->info()->dimension(1) + src->info()->padding().top + src->info()->padding().bottom; + const size_t in_stride_wc = in_stride_w * in_stride_c; + const size_t in_dim_h = src->info()->dimension(2); + + // Compute the ratio between source height and destination height + const auto hr = scale_utils::calculate_resize_ratio(in_dim_h, dst->info()->dimension(2), align_corners); + const auto window_start_x = static_cast<int32_t>(window.x().start()); + const auto window_end_x = static_cast<int32_t>(window.x().end()); + + Window win(window); + win.set(Window::DimX, Window::Dimension(0, 1, 1)); + Iterator out(dst, win); + + const uint8_t *in_ptr_start = src->buffer() + src->info()->offset_first_element_in_bytes(); + const unsigned int in_stride_bytes_hwc = src->info()->strides_in_bytes()[3]; + + execute_window_loop( + win, + [&](const Coordinates &id) + { + const int32_t offset = + *reinterpret_cast<const int32_t *>(offsets->ptr_to_element(Coordinates(id.y(), id.z()))) * in_stride_c; + const auto in_hi = static_cast<int>( + align_corners ? utils::rounding::round_half_away_from_zero((id.z() + sampling_offset) * hr) + : std::floor((id.z() + sampling_offset) * hr)); + const int offset_row = in_hi * in_stride_wc; + const auto in_ptr = reinterpret_cast<const float16_t *>(in_ptr_start + in_stride_bytes_hwc * id[3]); + const auto out_ptr = reinterpret_cast<float16_t *>(out.ptr()); + + // Compute S elements per iteration + int x = window_start_x; + svbool_t pg = svwhilelt_b16(x, window_end_x); + do + { + // Store results + svst1_f16(pg, out_ptr + x, svld1_f16(pg, in_ptr + offset + offset_row + x)); + + x += svcntw(); + pg = svwhilelt_b16(x, window_end_x); + } while (svptest_any(svptrue_b16(), pg)); + }, + out); +} +} // namespace +namespace cpu +{ +void fp16_sve_scale(const ITensor *src, + ITensor *dst, + const ITensor *offsets, + const ITensor *dx, + const ITensor *dy, + InterpolationPolicy policy, + BorderMode border_mode, + PixelValue constant_border_value, + float sampling_offset, + bool align_corners, + const Window &window) +{ + ARM_COMPUTE_UNUSED(dx, dy, border_mode, constant_border_value); + if (policy == InterpolationPolicy::NEAREST_NEIGHBOR) + { + fp16_sve_scale_nearest(src, dst, offsets, sampling_offset, align_corners, window); + } + else + { + ARM_COMPUTE_ERROR("Not implemented"); + } +} +} // namespace cpu +} // namespace arm_compute +#endif /* defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS) */ |