COMPMID-3870: Create ActivationLayer SVE/SVE2
Adds support for ActivationLayer for SVE and SVE2.
Datatypes supported:
*FP32
*FP16
*QASYMM8
*QASYMM8_SIGNED
*QSYMM16
Change-Id: Ia3583891795cda4ca2f9fa27c440731a5c27710d
Signed-off-by: Michalis Spyrou <michalis.spyrou@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4566
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/core/NEON/kernels/activation/impl/SVE/qasymm8_signed.cpp b/src/core/NEON/kernels/activation/impl/SVE/qasymm8_signed.cpp
new file mode 100644
index 0000000..f34bee8
--- /dev/null
+++ b/src/core/NEON/kernels/activation/impl/SVE/qasymm8_signed.cpp
@@ -0,0 +1,183 @@
+/*
+ * Copyright (c) 2020 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/Window.h"
+#include "src/core/NEON/wrapper/wrapper.h"
+#include "src/core/common/StdTypes.h"
+#include "src/core/common/Validate.h"
+
+#include <cmath>
+#include <cstddef>
+
+#if defined(__ARM_FEATURE_SVE2)
+#include "src/core/NEON/SVEAsymm.h"
+#include "src/core/NEON/SVEMath.h"
+#include <arm_sve.h>
+
+namespace arm_compute
+{
+namespace cpu
+{
+void qasymm8_signed_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 UniformQuantizationInfo qi_in = src->info()->quantization_info().uniform();
+ const UniformQuantizationInfo qi_out = dst->info()->quantization_info().uniform();
+ const auto va = svdup_n_s8(quantize_qasymm8_signed(act_info.a(), qi_in));
+ const auto vb = svdup_n_s8(quantize_qasymm8_signed(act_info.b(), qi_in));
+ const auto const_0 = quantize_qasymm8_signed(0.f, qi_in);
+ const auto vconst_0 = svdup_n_s8(const_0);
+ 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());
+ const auto const_6_f32 = svdup_n_f32(6.f);
+ const auto const_0_f32 = svdup_n_f32(0.f);
+ const auto const_3_f32 = svdup_n_f32(3.f);
+ const auto const_inv_6_f32 = svdup_n_f32(0.166666667f);
+
+ // Initialise scale/offset for re-quantization
+ bool requant = true;
+ if(qi_in.scale == qi_out.scale && qi_in.offset == qi_out.offset)
+ {
+ requant = false;
+ }
+ float s = qi_in.scale / qi_out.scale;
+ float o = -qi_in.offset * s + qi_out.offset;
+ auto vs = svdup_n_f32(s);
+ auto vo = svdup_n_f32(o);
+
+ execute_window_loop(win_collapsed, [&](const Coordinates &)
+ {
+ const auto input_ptr = reinterpret_cast<const int8_t *>(input.ptr());
+ const auto output_ptr = reinterpret_cast<int8_t *>(output.ptr());
+
+ svint8_t tmp;
+
+ int x = window_start_x;
+ svbool_t pg = svwhilelt_b8(x, window_end_x);
+ do
+ {
+ const auto vin = svld1_s8(pg, input_ptr + x);
+ if(act == ActivationLayerInfo::ActivationFunction::RELU)
+ {
+ // Perform activation
+ tmp = svmax_s8_z(pg, vconst_0, vin);
+ // Re-quantize to new output space
+ tmp = requant ? svmla_qasymm8_signed_z(pg, tmp, vs, vo) : tmp;
+ }
+ else if(act == ActivationLayerInfo::ActivationFunction::BOUNDED_RELU)
+ {
+ // Perform activation
+ tmp = svmin_s8_z(pg, va, svmax_s8_z(pg, vconst_0, vin));
+ // Re-quantize to new output space
+ tmp = requant ? svmla_qasymm8_signed_z(pg, tmp, vs, vo) : tmp;
+ }
+ else if(act == ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU)
+ {
+ // Perform activation
+ tmp = svmin_s8_z(pg, va, svmax_s8_z(pg, vb, vin));
+ // Re-quantize to new output space
+ tmp = requant ? svmla_qasymm8_signed_z(pg, tmp, vs, vo) : tmp;
+ }
+ else if(act == ActivationLayerInfo::ActivationFunction::LOGISTIC)
+ {
+ // De-quantize
+ const auto vin_deq = svdequantize_z(pg, vin, qi_in);
+ // Perform activation
+ const svfloat32x4_t tmp_dep =
+ {
+ { {
+ svdiv_f32_z(pg, vconst_1, svadd_f32_z(pg, vconst_1, svexp_f32_z(pg, svneg_f32_z(pg, svget4_f32(vin_deq, 0))))),
+ svdiv_f32_z(pg, vconst_1, svadd_f32_z(pg, vconst_1, svexp_f32_z(pg, svneg_f32_z(pg, svget4_f32(vin_deq, 1))))),
+ svdiv_f32_z(pg, vconst_1, svadd_f32_z(pg, vconst_1, svexp_f32_z(pg, svneg_f32_z(pg, svget4_f32(vin_deq, 2))))),
+ svdiv_f32_z(pg, vconst_1, svadd_f32_z(pg, vconst_1, svexp_f32_z(pg, svneg_f32_z(pg, svget4_f32(vin_deq, 3))))),
+ }
+ }
+ };
+ // Re-quantize to new output space
+ tmp = svquantize_signed_z(pg, tmp_dep, qi_out);
+ }
+ else if(act == ActivationLayerInfo::ActivationFunction::TANH)
+ {
+ // De-quantize
+ const auto vin_deq = svdequantize_z(pg, vin, qi_in);
+ // Perform activation
+ const svfloat32x4_t tmp_dep =
+ {
+ { {
+ svmul_f32_z(pg, va_f32, svtanh_f32_z(pg, svmul_f32_z(pg, svget4_f32(vin_deq, 0), vb_f32))),
+ svmul_f32_z(pg, va_f32, svtanh_f32_z(pg, svmul_f32_z(pg, svget4_f32(vin_deq, 1), vb_f32))),
+ svmul_f32_z(pg, va_f32, svtanh_f32_z(pg, svmul_f32_z(pg, svget4_f32(vin_deq, 2), vb_f32))),
+ svmul_f32_z(pg, va_f32, svtanh_f32_z(pg, svmul_f32_z(pg, svget4_f32(vin_deq, 3), vb_f32))),
+ }
+ }
+ };
+ // Re-quantize to new output space
+ tmp = svquantize_signed_z(pg, tmp_dep, qi_out);
+ }
+ else if(act == ActivationLayerInfo::ActivationFunction::HARD_SWISH)
+ {
+ // De-quantize
+ const auto vin_deq = svdequantize_z(pg, vin, qi_in);
+ // Perform activation
+ const svfloat32x4_t tmp_dep =
+ {
+ { {
+ svmul_f32_z(pg, svget4_f32(vin_deq, 0), svmul_f32_z(pg, const_inv_6_f32, svmin_f32_z(pg, const_6_f32, svmax_f32_z(pg, const_0_f32, svadd_f32_z(pg, svget4_f32(vin_deq, 0), const_3_f32))))),
+ svmul_f32_z(pg, svget4_f32(vin_deq, 1), svmul_f32_z(pg, const_inv_6_f32, svmin_f32_z(pg, const_6_f32, svmax_f32_z(pg, const_0_f32, svadd_f32_z(pg, svget4_f32(vin_deq, 1), const_3_f32))))),
+ svmul_f32_z(pg, svget4_f32(vin_deq, 2), svmul_f32_z(pg, const_inv_6_f32, svmin_f32_z(pg, const_6_f32, svmax_f32_z(pg, const_0_f32, svadd_f32_z(pg, svget4_f32(vin_deq, 2), const_3_f32))))),
+ svmul_f32_z(pg, svget4_f32(vin_deq, 3), svmul_f32_z(pg, const_inv_6_f32, svmin_f32_z(pg, const_6_f32, svmax_f32_z(pg, const_0_f32, svadd_f32_z(pg, svget4_f32(vin_deq, 3), const_3_f32))))),
+ }
+ }
+ };
+ // Re-quantize to new output space
+ tmp = svquantize_signed_z(pg, tmp_dep, qi_out);
+ }
+ else
+ {
+ ARM_COMPUTE_ERROR("Unsupported activation function");
+ }
+
+ svst1_s8(pg, output_ptr + x, tmp);
+
+ x += svcntb();
+ pg = svwhilelt_b8(x, window_end_x);
+
+ }
+ while(svptest_any(svptrue_b8(), pg));
+ },
+ input, output);
+}
+} // namespace cpu
+} // namespace arm_compute
+#endif /* defined(__ARM_FEATURE_SVE2) */