| /* |
| * Copyright (c) 2020-2022 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. |
| */ |
| #include "arm_compute/core/Helpers.h" |
| #include "arm_compute/core/ITensorPack.h" |
| #include "arm_compute/core/Window.h" |
| #include "arm_compute/core/experimental/Types.h" |
| |
| #include <cmath> |
| #include <cstddef> |
| |
| #include "src/core/NEON/SVEMath.h" |
| #include "src/core/NEON/SVESymm.h" |
| #include <arm_sve.h> |
| |
| namespace arm_compute |
| { |
| namespace cpu |
| { |
| void sve2_qsymm16_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 UniformQuantizationInfo qi_in = src->info()->quantization_info().uniform(); |
| const UniformQuantizationInfo qi_out = dst->info()->quantization_info().uniform(); |
| const auto vconst_1 = svdup_n_f32(1.f); |
| const auto va_f32 = svdup_n_f32(act_info.a()); |
| const auto vb_f32 = svdup_n_f32(act_info.b()); |
| |
| execute_window_loop(win_collapsed, [&](const Coordinates &) |
| { |
| const auto input_ptr = reinterpret_cast<const int16_t *>(input.ptr()); |
| const auto output_ptr = reinterpret_cast<int16_t *>(output.ptr()); |
| |
| svint16_t tmp; |
| |
| int x = window_start_x; |
| svbool_t pg = svwhilelt_b16(x, window_end_x); |
| do |
| { |
| const auto vin = svld1_s16(pg, input_ptr + x); |
| if(act == ActivationLayerInfo::ActivationFunction::LOGISTIC) |
| { |
| // De-quantize |
| auto vin_deq = svdequantize_qsymm16_z(pg, vin, qi_in.scale); |
| // Perform activation |
| const svfloat32x2_t tmp_dep = svcreate2_f32(svdiv_f32_z(pg, vconst_1, svadd_f32_z(pg, vconst_1, svexp_f32_z(pg, svneg_f32_z(pg, svget2_f32(vin_deq, 0))))), |
| svdiv_f32_z(pg, vconst_1, svadd_f32_z(pg, vconst_1, svexp_f32_z(pg, svneg_f32_z(pg, svget2_f32(vin_deq, 1)))))); |
| // Re-quantize to new output space |
| tmp = svquantize_qsymm16_z(pg, tmp_dep, qi_out.scale); |
| } |
| else if(act == ActivationLayerInfo::ActivationFunction::TANH) |
| { |
| // De-quantize |
| auto vin_deq = svdequantize_qsymm16_z(pg, vin, qi_in.scale); |
| // Perform activation |
| const svfloat32x2_t tmp_dep = svcreate2_f32(svmul_f32_z(pg, va_f32, svtanh_f32_z(pg, svmul_f32_z(pg, svget2_f32(vin_deq, 0), vb_f32))), |
| svmul_f32_z(pg, va_f32, svtanh_f32_z(pg, svmul_f32_z(pg, svget2_f32(vin_deq, 1), vb_f32)))); |
| // Re-quantize to new output space |
| tmp = svquantize_qsymm16_z(pg, tmp_dep, qi_out.scale); |
| } |
| else if(act == ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU) |
| { |
| // De-quantize |
| auto vin_deq = svdequantize_qsymm16_z(pg, vin, qi_in.scale); |
| // Perform activation |
| const svfloat32x2_t tmp_dep = svcreate2_f32(svmin_f32_z(pg, va_f32, svmax_f32_z(pg, vb_f32, svget2_f32(vin_deq, 0))), |
| svmin_f32_z(pg, va_f32, svmax_f32_z(pg, vb_f32, svget2_f32(vin_deq, 1)))); |
| // Re-quantize to new output space |
| tmp = svquantize_qsymm16_z(pg, tmp_dep, qi_out.scale); |
| } |
| else |
| { |
| ARM_COMPUTE_ERROR("Unsupported activation function"); |
| } |
| |
| svst1_s16(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 |