wehub-resource-sync
124 lines
5.1 KiB
C++
124 lines
5.1 KiB
C++
/*
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* SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef TRT_TOPK_LAST_DIM_PLUGIN_H
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#define TRT_TOPK_LAST_DIM_PLUGIN_H
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#include "NvInfer.h"
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#include "common/plugin.h"
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#include <cstdint>
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#include <string>
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#include <vector>
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namespace nvinfer1::plugin
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{
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class TopkLastDimPlugin : public IPluginV3,
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public IPluginV3OneCore,
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public IPluginV3OneBuild,
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public IPluginV3OneRuntime
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{
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public:
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//! \param axis Axis along which to compute top-k. -1 means last dimension.
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TopkLastDimPlugin(int32_t typeId, int32_t k, int32_t isLargest, int32_t axis = -1);
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TopkLastDimPlugin(TopkLastDimPlugin const&) = default;
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~TopkLastDimPlugin() override = default;
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// IPluginV3
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IPluginCapability* getCapabilityInterface(PluginCapabilityType type) noexcept override;
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IPluginV3* clone() noexcept override;
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// IPluginV3OneCore
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char const* getPluginName() const noexcept override;
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char const* getPluginVersion() const noexcept override;
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char const* getPluginNamespace() const noexcept override;
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// IPluginV3OneBuild
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int32_t getNbOutputs() const noexcept override;
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int32_t configurePlugin(DynamicPluginTensorDesc const* in, int32_t nbInputs, DynamicPluginTensorDesc const* out,
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int32_t nbOutputs) noexcept override;
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bool supportsFormatCombination(
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int32_t pos, DynamicPluginTensorDesc const* inOut, int32_t nbInputs, int32_t nbOutputs) noexcept override;
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int32_t getOutputDataTypes(
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DataType* outputTypes, int32_t nbOutputs, DataType const* inputTypes, int32_t nbInputs) const noexcept override;
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int32_t getOutputShapes(DimsExprs const* inputs, int32_t nbInputs, DimsExprs const* shapeInputs,
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int32_t nbShapeInputs, DimsExprs* outputs, int32_t nbOutputs, IExprBuilder& exprBuilder) noexcept override;
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size_t getWorkspaceSize(DynamicPluginTensorDesc const* inputs, int32_t nbInputs,
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DynamicPluginTensorDesc const* outputs, int32_t nbOutputs) const noexcept override;
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// IPluginV3OneRuntime
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int32_t enqueue(PluginTensorDesc const* inputDesc, PluginTensorDesc const* outputDesc, void const* const* inputs,
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void* const* outputs, void* workspace, cudaStream_t stream) noexcept override;
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int32_t onShapeChange(
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PluginTensorDesc const* in, int32_t nbInputs, PluginTensorDesc const* out, int32_t nbOutputs) noexcept override;
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IPluginV3* attachToContext(IPluginResourceContext* context) noexcept override;
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PluginFieldCollection const* getFieldsToSerialize() noexcept override;
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void setPluginNamespace(char const* pluginNamespace) noexcept;
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private:
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//! Resolve mAxis to a non-negative value given the input rank.
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int32_t resolveAxis(int32_t nbDims) const;
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//! Compute the element size for the configured data type.
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int32_t elementSize() const;
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//! Compute workspace needed for transpose buffers (0 when axis == last dim).
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size_t transposeWorkspaceSize(Dims const& inputDims) const;
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//! Compute workspace needed by the AIR TopK kernel itself.
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size_t topkKernelWorkspaceSize(int32_t numRows, int32_t rowLength) const;
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template <typename T>
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int32_t enqueueImpl(PluginTensorDesc const* inputDesc, PluginTensorDesc const* outputDesc,
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void const* const* inputs, void* const* outputs, void* workspace, cudaStream_t stream);
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int32_t mTypeId; //!< DataType stored as int32_t for field-based serialization.
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int32_t mK;
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int32_t mIsLargest; //!< Boolean stored as int32_t for field-based serialization.
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int32_t mAxis; //!< Axis for top-k. -1 means last dimension.
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std::string mNamespace;
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std::vector<nvinfer1::PluginField> mDataToSerialize;
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nvinfer1::PluginFieldCollection mFCToSerialize;
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};
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class TopkLastDimPluginCreator : public nvinfer1::IPluginCreatorV3One
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{
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public:
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TopkLastDimPluginCreator();
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~TopkLastDimPluginCreator() override = default;
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char const* getPluginName() const noexcept override;
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char const* getPluginVersion() const noexcept override;
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PluginFieldCollection const* getFieldNames() noexcept override;
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IPluginV3* createPlugin(char const* name, PluginFieldCollection const* fc, TensorRTPhase phase) noexcept override;
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char const* getPluginNamespace() const noexcept override;
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void setPluginNamespace(char const* pluginNamespace) noexcept;
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private:
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PluginFieldCollection mFC;
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std::vector<PluginField> mPluginAttributes;
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std::string mNamespace;
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};
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} // namespace nvinfer1::plugin
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#endif // TRT_TOPK_LAST_DIM_PLUGIN_H
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