chore: import upstream snapshot with attribution

plugin/modulatedDeformConvPlugin/commonCudaHelper.h

@@ -0,0 +1,43 @@
+/*
+ * SPDX-FileCopyrightText: Copyright (c) 1993-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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.
+ */
+
+/*
+ **************************************************************************
+ * Modified from mmcv (https://github.com/open-mmlab/mmcv/tree/master/mmcv)
+ * Copyright (c) OpenMMLab. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 [see LICENSE for details]
+ * https://github.com/open-mmlab/mmcv/blob/master/LICENSE
+ **************************************************************************
+ */
+
+#ifndef TRT_COMMON_CUDA_HELPER_H
+#define TRT_COMMON_CUDA_HELPER_H
+
+#include <cstdint>
+#include <cuda.h>
+
+constexpr int32_t THREADS_PER_BLOCK{512};
+
+inline int32_t get_blocks(int32_t const N, int32_t const numThreads = THREADS_PER_BLOCK)
+{
+    int32_t optimalBlockNum = (N + numThreads - 1) / numThreads;
+    int32_t maxBlockNum = 4096;
+
+    return min(optimalBlockNum, maxBlockNum);
+}
+
+#endif // TRT_COMMON_CUDA_HELPER_H