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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_QKV_TO_CONTEXT_INTERLEAVED_PLUGIN_H
#define TRT_QKV_TO_CONTEXT_INTERLEAVED_PLUGIN_H
#include "NvInferPlugin.h"
#include "fused_multihead_attention_v2/fused_multihead_attention_v2.h"
#include <cuda.h>
#include <string>
#include <vector>
namespace nvinfer1
{
namespace plugin
{
namespace bert
{
static constexpr int32_t kSM_XAVIER = 72;
static constexpr int32_t kSM_TURING = 75;
static constexpr int32_t kSM_AMPERE_100 = 80;
static constexpr int32_t kSM_AMPERE_10X = 86;
static constexpr int32_t kSM_AMPERE_10B = 87;
static constexpr int32_t kSM_ADA_10X = 89;
static constexpr int32_t kSM_HOPPER_100 = 90;
static constexpr int32_t kSM_BLACKWELL_100 = 100;
static constexpr int32_t kSM_BLACKWELL_120 = 120;
class QKVToContextInterleavedPlugin : public IPluginV3,
public IPluginV3OneCore,
public IPluginV3OneBuild,
public IPluginV3OneRuntime
{
public:
QKVToContextInterleavedPlugin(std::string const& name, int32_t hiddenSize, int32_t numHeads, float dqProbs,
bool useInt8ScaleMax, bool useExplicitInt8, float qkvScale, float ctxScale);
// It doesn't make sense to make QKVToContextInterleavedPlugin without arguments, so we
// delete default constructor.
QKVToContextInterleavedPlugin() = delete;
~QKVToContextInterleavedPlugin() override;
// IPluginV3 Methods
IPluginCapability* getCapabilityInterface(PluginCapabilityType type) noexcept override;
// end of IPluginV3 Methods
// IPluginV3OneCore Methods
char const* getPluginName() const noexcept override;
char const* getPluginNamespace() const noexcept override;
void setPluginNamespace(char const* pluginNamespace) noexcept;
char const* getPluginVersion() const noexcept override;
// end of IPluginV3OneCore Methods
// IPluginV3Build Methods
bool supportsFormatCombination(
int32_t pos, DynamicPluginTensorDesc const* inOut, int32_t nbInputs, int32_t nbOutputs) noexcept override;
int32_t configurePlugin(DynamicPluginTensorDesc const* in, int32_t nbInputs, DynamicPluginTensorDesc const* out,
int32_t nbOutputs) noexcept override;
size_t getWorkspaceSize(DynamicPluginTensorDesc const* inputs, int32_t nbInputs,
DynamicPluginTensorDesc const* outputs, int32_t nbOutputs) const noexcept override;
int32_t getOutputDataTypes(
DataType* outputTypes, int32_t nbOutputs, DataType const* inputTypes, int32_t nbInputs) const noexcept override;
int32_t getNbOutputs() const noexcept override;
int32_t getOutputShapes(DimsExprs const* inputs, int32_t nbInputs, DimsExprs const* shapeInputs,
int32_t nbShapeInputs, DimsExprs* outputs, int32_t nbOutputs, IExprBuilder& exprBuilder) noexcept override;
// end IPluginV3Build Methods
// IPluginV3Runtime Methods
IPluginV3* clone() noexcept override;
int32_t onShapeChange(
PluginTensorDesc const* in, int32_t nbInputs, PluginTensorDesc const* out, int32_t nbOutputs) 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;
IPluginV3* attachToContext(IPluginResourceContext* context) noexcept override;
PluginFieldCollection const* getFieldsToSerialize() noexcept override;
// end IPluginV3Runtime Methods
protected:
private:
std::string const& mLayerName;
std::string mNamespace;
int32_t mSM{};
int32_t mHeadSize{};
int32_t mHiddenSize{};
int32_t mNumHeads{};
int32_t mUseInt8ScaleMax{1};
int32_t mUseExplicitInt8{};
FusedMultiHeadAttentionXMMAKernelV2 const* mXmmaKernel;
float mDqProbs{};
float mQkvScale{};
float mCtxScale{};
// IPluginV3 serialization related
std::vector<nvinfer1::PluginField> mDataToSerialize;
nvinfer1::PluginFieldCollection mFCToSerialize;
};
class QKVToContextInterleavedPluginCreator : public nvinfer1::IPluginCreatorV3One
{
public:
QKVToContextInterleavedPluginCreator();
~QKVToContextInterleavedPluginCreator() override = default;
char const* getPluginName() const noexcept override;
char const* getPluginVersion() const noexcept override;
PluginFieldCollection const* getFieldNames() noexcept override;
IPluginV3* createPlugin(char const* name, PluginFieldCollection const* fc, TensorRTPhase phase) noexcept override;
void setPluginNamespace(char const* libNamespace) noexcept;
char const* getPluginNamespace() const noexcept override;
private:
nvinfer1::PluginFieldCollection mFC;
std::vector<nvinfer1::PluginField> mPluginAttributes;
std::string mNamespace;
};
} // namespace bert
} // namespace plugin
} // namespace nvinfer1
#endif // TRT_QKV_TO_CONTEXT_INTERLEAVED_PLUGIN_H
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