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Diffstat (limited to 'src/core/cpu/kernels/activation/sve/fp16.cpp')
| -rw-r--r-- | src/core/cpu/kernels/activation/sve/fp16.cpp | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/src/core/cpu/kernels/activation/sve/fp16.cpp b/src/core/cpu/kernels/activation/sve/fp16.cpp new file mode 100644 index 0000000000..bf31fd7d93 --- /dev/null +++ b/src/core/cpu/kernels/activation/sve/fp16.cpp @@ -0,0 +1,130 @@ +/* + * Copyright (c) 2020-2021 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 "arm_compute/core/Helpers.h" +#include "arm_compute/core/ITensorPack.h" +#include "arm_compute/core/Window.h" + +#include <cmath> +#include <cstddef> + +#if defined(__ARM_FEATURE_SVE) +#include "src/core/NEON/SVEMath.h" +#include <arm_sve.h> + +namespace arm_compute +{ +namespace cpu +{ +void fp16_sve_activation(const ITensor *src, ITensor *dst, const ActivationLayerInfo &act_info, const Window &window) +{ + const auto window_start_x = static_cast<int>(window.x().start()); + const auto window_end_x = static_cast<int>(window.x().end()); + const ActivationLayerInfo::ActivationFunction act = act_info.activation(); + + Window win_collapsed = window.collapse_if_possible(window, Window::DimZ); + win_collapsed.set(Window::DimX, Window::Dimension(0, 1, 1)); + + Iterator input(src, win_collapsed); + Iterator output(dst, win_collapsed); + + const auto const_1 = svdup_n_f16(1.f); + const auto const_0 = svdup_n_f16(0.f); + const auto const_6 = svdup_n_f16(6.f); + const auto const_3 = svdup_n_f16(3.f); + const auto const_inv_6 = svdup_n_f16(0.166666667f); + + const auto va = svdup_n_f16(act_info.a()); + const auto vb = svdup_n_f16(act_info.b()); + execute_window_loop(win_collapsed, [&](const Coordinates &) + { + const auto input_ptr = reinterpret_cast<const float16_t *>(input.ptr()); + const auto output_ptr = reinterpret_cast<float16_t *>(output.ptr()); + + svfloat16_t tmp; + + int x = window_start_x; + svbool_t pg = svwhilelt_b16(x, window_end_x); + do + { + const auto vin = svld1_f16(pg, input_ptr + x); + switch(act) + { + case ActivationLayerInfo::ActivationFunction::ABS: + tmp = svabs_f16_z(pg, vin); + break; + case ActivationLayerInfo::ActivationFunction::LINEAR: + tmp = svmla_f16_z(pg, vb, va, vin); + break; + case ActivationLayerInfo::ActivationFunction::LOGISTIC: + tmp = svinv_f16_z(pg, svadd_f16_z(pg, const_1, svexp_f16_z(pg, svneg_f16_z(pg, vin)))); + break; + case ActivationLayerInfo::ActivationFunction::RELU: + tmp = svmax_f16_z(pg, const_0, vin); + break; + case ActivationLayerInfo::ActivationFunction::BOUNDED_RELU: + tmp = svmin_f16_z(pg, va, svmax_f16_z(pg, const_0, vin)); + break; + case ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU: + tmp = svmin_f16_z(pg, va, svmax_f16_z(pg, vb, vin)); + break; + case ActivationLayerInfo::ActivationFunction::LEAKY_RELU: + tmp = svadd_f16_z(pg, svmul_f16_z(pg, svmin_f16_z(pg, vin, const_0), va), svmax_f16_z(pg, vin, const_0)); + break; + case ActivationLayerInfo::ActivationFunction::SOFT_RELU: + tmp = svlog_f16_z(pg, svadd_f16_z(pg, const_1, svexp_f16_z(pg, vin))); + break; + case ActivationLayerInfo::ActivationFunction::ELU: + tmp = svsel_f16(svcmpgt_f16(pg, vin, const_0), vin, svmul_f16_z(pg, va, svsub_f16_z(pg, svexp_f16_z(pg, vin), const_1))); + break; + case ActivationLayerInfo::ActivationFunction::SQRT: + tmp = svsqrt_f16_z(pg, vin); + break; + case ActivationLayerInfo::ActivationFunction::SQUARE: + tmp = svmul_f16_z(pg, vin, vin); + break; + case ActivationLayerInfo::ActivationFunction::TANH: + tmp = svmul_f16_z(pg, va, svtanh_f16_z(pg, svmul_f16_z(pg, vb, vin))); + break; + case ActivationLayerInfo::ActivationFunction::IDENTITY: + tmp = vin; + break; + case ActivationLayerInfo::ActivationFunction::HARD_SWISH: + tmp = svmul_f16_z(pg, vin, svmul_f16_z(pg, const_inv_6, svmin_f16_z(pg, const_6, svmax_f16_z(pg, const_0, svadd_f16_z(pg, vin, const_3))))); + break; + default: + ARM_COMPUTE_ERROR("Unsupported activation function"); + } + svst1_f16(pg, output_ptr + x, tmp); + + x += svcnth(); + pg = svwhilelt_b16(x, window_end_x); + + } + while(svptest_any(svptrue_b16(), pg)); + }, + input, output); +} +} // namespace cpu +} // namespace arm_compute +#endif // __ARM_FEATURE_SVE
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