chore: import upstream snapshot with attribution

2026-07-13 13:36:55 +08:00
commit c8a779b1bb
1887 changed files with 3245738 additions and 0 deletions
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+/*
+ * SPDX-FileCopyrightText: Copyright (c) 1993-2025 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.
+ */
+
+#ifndef TRT_GROUP_NORM_PLUGIN_H
+#define TRT_GROUP_NORM_PLUGIN_H
+
+#include "common/plugin.h"
+#include <string>
+#include <vector>
+
+// One of the preferred ways of making TensorRT to be able to see
+// our custom layer requires extending IPluginV2 and IPluginCreator classes.
+// For requirements for overriden functions, check TensorRT API docs.
+namespace nvinfer1
+{
+namespace plugin
+{
+
+template <typename T>
+cudaError_t scaleShiftChannelsInplace(T* inOut, int32_t const B, int32_t const C, int32_t const channelVolume,
+    float const* beta, float const* gamma, cudaStream_t stream);
+
+class GroupNormalizationPlugin final : public nvinfer1::IPluginV2DynamicExt
+{
+public:
+    GroupNormalizationPlugin(float epsilon, int32_t const nbGroups);
+
+    GroupNormalizationPlugin(void const* data, size_t length);
+
+    // It doesn't make sense to make GroupNormalizationPlugin without arguments, so we
+    // delete default constructor.
+    GroupNormalizationPlugin() = delete;
+
+    int32_t getNbOutputs() const noexcept override;
+
+    // DynamicExt plugins returns DimsExprs class instead of Dims
+    DimsExprs getOutputDimensions(int32_t index, nvinfer1::DimsExprs const* inputs, int32_t nbInputDims,
+        nvinfer1::IExprBuilder& exprBuilder) noexcept override;
+
+    int32_t initialize() noexcept override;
+
+    void terminate() noexcept override;
+
+    size_t getWorkspaceSize(nvinfer1::PluginTensorDesc const* inputs, int32_t nbInputs,
+        nvinfer1::PluginTensorDesc const* outputs, int32_t nbOutputs) const noexcept override;
+
+    int32_t enqueue(nvinfer1::PluginTensorDesc const* inputDesc, nvinfer1::PluginTensorDesc const* outputDesc,
+        void const* const* inputs, void* const* outputs, void* workspace, cudaStream_t stream) noexcept override;
+
+    size_t getSerializationSize() const noexcept override;
+
+    void serialize(void* buffer) const noexcept override;
+
+    bool supportsFormatCombination(
+        int32_t pos, nvinfer1::PluginTensorDesc const* inOut, int32_t nbInputs, int32_t nbOutputs) noexcept override;
+
+    char const* getPluginType() const noexcept override;
+
+    char const* getPluginVersion() const noexcept override;
+
+    nvinfer1::IPluginV2DynamicExt* clone() const noexcept override;
+
+    void destroy() noexcept override;
+
+    DataType getOutputDataType(
+        int32_t index, nvinfer1::DataType const* inputTypes, int32_t nbInputs) const noexcept override;
+
+    void attachToContext(
+        cudnnContext* cudnn, cublasContext* cublas, nvinfer1::IGpuAllocator* allocator) noexcept override;
+
+    void detachFromContext() noexcept override;
+
+    void setPluginNamespace(char const* pluginNamespace) noexcept override;
+
+    char const* getPluginNamespace() const noexcept override;
+
+    void configurePlugin(nvinfer1::DynamicPluginTensorDesc const* in, int32_t nbInputs,
+        nvinfer1::DynamicPluginTensorDesc const* out, int32_t nbOutputs) noexcept override;
+
+private:
+    std::string mNamespace;
+
+    float mEpsilon;
+    int32_t mNbGroups;
+    int32_t mChannelVolume;
+
+    nvinfer1::pluginInternal::cudnnHandle_t mCudnnHandle{};
+    // the wrapper pointer is shared among all plugins attached to the same context.
+    std::shared_ptr<nvinfer1::pluginInternal::CudnnWrapper> mCudnnWrapper;
+
+    // Describes input and output.
+    nvinfer1::pluginInternal::cudnnTensorDescriptor_t mTensorDesc{};
+    nvinfer1::pluginInternal::cudnnTensorDescriptor_t mBNTensorDesc{};
+
+    // These are buffers initialized to 1 and 0 respectively
+    std::shared_ptr<CudaBind<float>> mBnScales{};
+    std::shared_ptr<CudaBind<float>> mBnBias{};
+    size_t mNbScaleBias{};
+
+    using IPluginV2::getOutputDimensions;
+    using IPluginV2::getWorkspaceSize;
+    using IPluginV2::enqueue;
+    using IPluginV2Ext::configurePlugin;
+};
+
+class GroupNormalizationPluginCreator : public IPluginCreator
+{
+public:
+    GroupNormalizationPluginCreator();
+
+    ~GroupNormalizationPluginCreator() override = default;
+
+    char const* getPluginName() const noexcept override;
+
+    char const* getPluginVersion() const noexcept override;
+
+    PluginFieldCollection const* getFieldNames() noexcept override;
+
+    IPluginV2DynamicExt* createPlugin(char const* name, PluginFieldCollection const* fc) noexcept override;
+
+    IPluginV2DynamicExt* deserializePlugin(
+        char const* name, void const* serialData, size_t serialLength) noexcept override;
+
+    void setPluginNamespace(char const* pluginNamespace) noexcept override;
+
+    char const* getPluginNamespace() const noexcept override;
+
+private:
+    PluginFieldCollection mFC;
+    std::vector<PluginField> mPluginAttributes;
+    std::string mNamespace;
+};
+} // namespace plugin
+} // namespace nvinfer1
+
+#endif // TRT_GROUP_NORM_PLUGIN_H