[Core] Cherry pick from 0.7.1 to keep the main code newest (#127)

Cherry pick from 0.7.1 to keep the main code newest

Signed-off-by: wangxiyuan <wangxiyuan1007@gmail.com>

vllm_ascend/ops/activation.py

@@ -0,0 +1,29 @@
+#
+# Copyright (c) 2025 Huawei Technologies Co., Ltd. All Rights Reserved.
+# This file is a part of the vllm-ascend project.
+#
+# 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
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# 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.
+#
+
+import torch
+from vllm.model_executor.layers.activation import SiluAndMul
+
+
+def silu_and_mul_forward_oot(self, x: torch.Tensor) -> torch.Tensor:
+    import torch_npu
+
+    out = torch_npu.npu_swiglu(x)
+    return out
+
+
+SiluAndMul.forward_oot = silu_and_mul_forward_oot