add c source utils functions license (#426)

Author: silencejade

csrc/utils/common.h

@@ -1,4 +1,3 @@
-
 // Licensed under the BSD 3-Clause License  (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -8,6 +7,15 @@
 // 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.
+//
+// The code snippet comes from [CANN].
+//
+// Copyright (c) [2025] [CANN]. All rights reserved.
+//
+// This file contains code from [CANN], which is released under
+// the CANN Open Software License Agreement Version 2.0 (the "License")
+// See the LICENSE file in the root directory of this source tree
+// or at https://gitcode.com/cann/ops-nn/blob/master/LICENSE for details.
 
 #ifndef UTILS_COMMON_H
 #define UTILS_COMMON_H

csrc/utils/defines.h

@@ -7,6 +7,15 @@
 // 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.
+//
+// The code snippet comes from [CANN].
+//
+// Copyright (c) [2025] [CANN]. All rights reserved.
+//
+// This file contains code from [CANN], which is released under
+// the CANN Open Software License Agreement Version 2.0 (the "License")
+// See the LICENSE file in the root directory of this source tree
+// or at https://gitcode.com/cann/ops-nn/blob/master/LICENSE for details.
 
 #ifndef SGL_KERNEL_NPU_DEFINES_H
 #define SGL_KERNEL_NPU_DEFINES_H

csrc/utils/torch_helper.h

@@ -7,6 +7,15 @@
 // 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.
+//
+// The code snippet comes from [CANN].
+//
+// Copyright (c) [2025] [CANN]. All rights reserved.
+//
+// This file contains code from [CANN], which is released under
+// the CANN Open Software License Agreement Version 2.0 (the "License")
+// See the LICENSE file in the root directory of this source tree
+// or at https://gitcode.com/cann/ops-nn/blob/master/LICENSE for details.
 
 #ifndef SGL_KERNEL_NPU_TORCH_NPU_HELPER_H
 #define SGL_KERNEL_NPU_TORCH_NPU_HELPER_H

csrc/utils/version.h

@@ -7,6 +7,15 @@
 // 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
+//
+// The code snippet comes from [CANN].
+//
+// Copyright (c) [2025] [CANN]. All rights reserved.
+//
+// This file contains code from [CANN], which is released under
+// the CANN Open Software License Agreement Version 2.0 (the "License")
+// See the LICENSE file in the root directory of this source tree
+// or at https://gitcode.com/cann/ops-nn/blob/master/LICENSE for details.
 
 #ifndef SGL_KERNEL_NPU_VERSION_H
 #define SGL_KERNEL_NPU_VERSION_H