[init] baseline7 from project_6

ex_engine/xllm_layers/common/activation.cpp

@@ -0,0 +1,38 @@
+/* Copyright 2025 The xLLM Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    https://github.com/jd-opensource/xllm/blob/main/LICENSE
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+==============================================================================*/
+
+#include "activation.h"
+
+#include "kernels/ops_api.h"
+namespace xllm {
+namespace layer {
+
+ActivationImpl::ActivationImpl(const std::string& act_mode, bool is_gated)
+    : act_mode_(act_mode), is_gated_(is_gated) {}
+
+void ActivationImpl::forward(torch::Tensor& input, torch::Tensor& output) {
+  xllm::kernel::ActivationParams activation_params;
+  activation_params.input = input;
+  activation_params.output = output;
+  activation_params.act_mode = act_mode_;
+  activation_params.is_gated = is_gated_;
+  xllm::kernel::active(activation_params);
+  // Unified assignment: NPU returns new tensor, others modify in-place (no-op
+  // assignment)
+  output = activation_params.output;
+}
+
+}  // namespace layer
+}  // namespace xllm