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
@@ -0,0 +1,131 @@
+/*
+ * SPDX-FileCopyrightText: Copyright (c) 1993-2026 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_HARDMAX_PLUGIN_H
+#define TRT_HARDMAX_PLUGIN_H
+
+#include "NvInferPlugin.h"
+#include <cublas_v2.h>
+#include <string>
+#include <vector>
+
+// This sample demonstrates how to implement a TensorRT plugin using the IPluginV3 interface.
+
+class HardmaxPlugin final : public nvinfer1::IPluginV3,
+                            public nvinfer1::IPluginV3OneCore,
+                            public nvinfer1::IPluginV3OneBuild,
+                            public nvinfer1::IPluginV3OneRuntime
+{
+public:
+    HardmaxPlugin() = delete;
+    HardmaxPlugin(int32_t axis);
+    HardmaxPlugin(HardmaxPlugin const& other);
+    ~HardmaxPlugin() override;
+
+    // IPluginV3 methods
+    nvinfer1::IPluginCapability* getCapabilityInterface(nvinfer1::PluginCapabilityType type) noexcept override;
+    nvinfer1::IPluginV3* clone() noexcept override;
+
+    // IPluginV3OneCore methods
+    char const* getPluginName() const noexcept override;
+    char const* getPluginVersion() const noexcept override;
+    char const* getPluginNamespace() const noexcept override;
+
+    // IPluginV3OneBuild methods
+    int32_t getNbOutputs() const noexcept override;
+
+    int32_t configurePlugin(nvinfer1::DynamicPluginTensorDesc const* in, int32_t nbInputs,
+        nvinfer1::DynamicPluginTensorDesc const* out, int32_t nbOutputs) noexcept override;
+
+    bool supportsFormatCombination(int32_t pos, nvinfer1::DynamicPluginTensorDesc const* inOut, int32_t nbInputs,
+        int32_t nbOutputs) noexcept override;
+
+    int32_t getOutputDataTypes(nvinfer1::DataType* outputTypes, int32_t nbOutputs, nvinfer1::DataType const* inputTypes,
+        int32_t nbInputs) const noexcept override;
+
+    int32_t getOutputShapes(nvinfer1::DimsExprs const* inputs, int32_t nbInputs, nvinfer1::DimsExprs const* shapeInputs,
+        int32_t nbShapeInputs, nvinfer1::DimsExprs* outputs, int32_t nbOutputs,
+        nvinfer1::IExprBuilder& exprBuilder) noexcept override;
+
+    size_t getWorkspaceSize(nvinfer1::DynamicPluginTensorDesc const* inputs, int32_t nbInputs,
+        nvinfer1::DynamicPluginTensorDesc const* outputs, int32_t nbOutputs) const noexcept override;
+
+    // IPluginV3OneRuntime methods
+    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;
+
+    int32_t onShapeChange(nvinfer1::PluginTensorDesc const* in, int32_t nbInputs, nvinfer1::PluginTensorDesc const* out,
+        int32_t nbOutputs) noexcept override;
+
+    nvinfer1::IPluginV3* attachToContext(nvinfer1::IPluginResourceContext* context) noexcept override;
+
+    nvinfer1::PluginFieldCollection const* getFieldsToSerialize() noexcept override;
+
+    void setPluginNamespace(char const* pluginNamespace) noexcept;
+
+private:
+    std::string mNamespace;
+
+    // Number of elements in the axis along which hardmax is performed.
+    int32_t mAxisSize{0};
+
+    // Product of dimensions before and after mAxis.
+    // For example, if the input dimensions are [3, 4, 5, 6, 7] and mAxis = 2,
+    // then mDimProductOuter = 12 and mDimProductInner = 42.
+    int32_t mDimProductOuter{1};
+    int32_t mDimProductInner{1};
+
+    cublasHandle_t mCublas{nullptr};
+
+    // Attributes
+    // Axis along which to perform hardmax.
+    // Can be negative initially, but once configurePlugin() is called it will
+    // be converted to a positive axis.
+    int32_t mAxis{-1};
+
+    // Serialization helpers
+    std::vector<nvinfer1::PluginField> mDataToSerialize;
+    nvinfer1::PluginFieldCollection mFCToSerialize;
+};
+
+class HardmaxPluginCreator : public nvinfer1::IPluginCreatorV3One
+{
+public:
+    HardmaxPluginCreator();
+
+    ~HardmaxPluginCreator() override = default;
+
+    char const* getPluginName() const noexcept override;
+
+    char const* getPluginVersion() const noexcept override;
+
+    nvinfer1::PluginFieldCollection const* getFieldNames() noexcept override;
+
+    nvinfer1::IPluginV3* createPlugin(
+        char const* name, nvinfer1::PluginFieldCollection const* fc, nvinfer1::TensorRTPhase phase) noexcept override;
+
+    void setPluginNamespace(char const* pluginNamespace) noexcept;
+
+    char const* getPluginNamespace() const noexcept override;
+
+private:
+    nvinfer1::PluginFieldCollection mFC;
+    std::vector<nvinfer1::PluginField> mPluginAttributes;
+    std::string mNamespace;
+};
+
+#endif // TRT_HARDMAX_PLUGIN_H