/* * 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 "arm_compute/core/experimental/Types.h" #include #include #if defined(__ARM_FEATURE_SVE2) #include "src/core/NEON/SVEMath.h" #include "src/core/NEON/SVESymm.h" #include namespace arm_compute { namespace cpu { void qsymm16_sve_activation(const ITensor *src, ITensor *dst, const ActivationLayerInfo &act_info, const Window &window) { const auto window_start_x = static_cast(window.x().start()); const auto window_end_x = static_cast(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(input.ptr()); const auto output_ptr = reinterpret_cast(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 = { { { 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 = { { { 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 { 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 #endif /* defined(__ARM_FEATURE_SVE2) */