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chore: import upstream snapshot with attribution
2026-07-13 13:36:55 +08:00

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/*
* 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.
*/
#include "multiscaleDeformableAttnPlugin.h"
#include "multiscaleDeformableAttn.h"
#include <memory>
using namespace nvinfer1;
using namespace nvinfer1::plugin;
namespace
{
static char const* DMHA_VERSION{"2"};
static char const* DMHA_NAME{"MultiscaleDeformableAttnPlugin_TRT"};
} // namespace
namespace nvinfer1::plugin
{
MultiscaleDeformableAttnPlugin::MultiscaleDeformableAttnPlugin() {}
IPluginCapability* MultiscaleDeformableAttnPlugin::getCapabilityInterface(PluginCapabilityType type) noexcept
{
try
{
if (type == PluginCapabilityType::kBUILD)
{
return static_cast<IPluginV3OneBuild*>(this);
}
if (type == PluginCapabilityType::kRUNTIME)
{
return static_cast<IPluginV3OneRuntime*>(this);
}
PLUGIN_ASSERT(type == PluginCapabilityType::kCORE);
return static_cast<IPluginV3OneCore*>(this);
}
catch (std::exception const& e)
{
caughtError(e);
}
return nullptr;
}
// IPluginV3OneCore methods
char const* MultiscaleDeformableAttnPlugin::getPluginName() const noexcept
{
return DMHA_NAME;
}
char const* MultiscaleDeformableAttnPlugin::getPluginVersion() const noexcept
{
return DMHA_VERSION;
}
int32_t MultiscaleDeformableAttnPlugin::getNbOutputs() const noexcept
{
return 1;
}
void MultiscaleDeformableAttnPlugin::setPluginNamespace(char const* pluginNamespace) noexcept
{
mNamespace = pluginNamespace;
}
char const* MultiscaleDeformableAttnPlugin::getPluginNamespace() const noexcept
{
return mNamespace.c_str();
}
IPluginV3* MultiscaleDeformableAttnPlugin::clone() noexcept
{
try
{
auto plugin = std::make_unique<MultiscaleDeformableAttnPlugin>();
plugin->setPluginNamespace(mNamespace.c_str());
return plugin.release();
}
catch (std::exception const& e)
{
caughtError(e);
}
return nullptr;
}
// IPluginV3OneBuild methods
int32_t MultiscaleDeformableAttnPlugin::getOutputDataTypes(
DataType* outputTypes, int32_t nbOutputs, DataType const* inputTypes, int32_t nbInputs) const noexcept
{
try
{
PLUGIN_VALIDATE(outputTypes != nullptr, "outputTypes pointer is null");
PLUGIN_VALIDATE(nbOutputs > 0, "nbOutputs is not positive");
PLUGIN_VALIDATE(inputTypes != nullptr, "inputTypes pointer is null");
PLUGIN_VALIDATE(nbInputs > 0, "nbInputs is not positive");
// Output type is the same as the first input type
std::fill_n(outputTypes, nbOutputs, inputTypes[0]);
return STATUS_SUCCESS;
}
catch (std::exception const& e)
{
caughtError(e);
}
return STATUS_FAILURE;
}
int32_t MultiscaleDeformableAttnPlugin::getOutputShapes(DimsExprs const* inputs, int32_t nbInputs,
DimsExprs const* shapeInputs, int32_t nbShapeInputs, DimsExprs* outputs, int32_t nbOutputs,
IExprBuilder& exprBuilder) noexcept
{
try
{
PLUGIN_VALIDATE(outputs != nullptr, "outputs pointer is null");
PLUGIN_VALIDATE(nbOutputs > 0, "nbOutputs is not positive");
PLUGIN_VALIDATE(inputs != nullptr, "inputs pointer is null");
PLUGIN_VALIDATE(nbInputs == 5, "Expected 5 inputs");
// Output shape: [N, Lq, M, D]
outputs[0].nbDims = 4;
outputs[0].d[0] = inputs[0].d[0]; // Batch size
outputs[0].d[1] = inputs[3].d[1]; // Lq (query length)
outputs[0].d[2] = inputs[0].d[2]; // Number of heads
outputs[0].d[3] = inputs[0].d[3]; // Hidden dimension per head
return STATUS_SUCCESS;
}
catch (std::exception const& e)
{
caughtError(e);
}
return STATUS_FAILURE;
}
bool MultiscaleDeformableAttnPlugin::supportsFormatCombination(
int32_t pos, DynamicPluginTensorDesc const* inOut, int32_t nbInputs, int32_t nbOutputs) noexcept
{
try
{
PLUGIN_VALIDATE(inOut != nullptr, "inOut pointer is null");
PLUGIN_VALIDATE(nbInputs == 5, "Expected 5 inputs");
PLUGIN_VALIDATE(nbOutputs == 1, "Expected 1 output");
// Check format
PluginTensorDesc const& desc = inOut[pos].desc;
if (desc.format != TensorFormat::kLINEAR)
{
return false;
}
// Special handling for spatial_shapes and level_start_index (inputs 1 and 2)
if (pos == 1 || pos == 2)
{
return desc.type == DataType::kINT32;
}
// Other inputs and output must have the same type, either FP32 or FP16
if (pos == 0 || pos == 3 || pos == 4 || pos == nbInputs)
{
// Check that the data type matches input[0]
bool const isFloatType = desc.type == DataType::kFLOAT || desc.type == DataType::kHALF;
if (pos == 0) // First tensor, just check if it's a supported type
{
return isFloatType;
}
// Other tensors must match the first
return desc.type == inOut[0].desc.type && isFloatType;
}
return false;
}
catch (std::exception const& e)
{
caughtError(e);
}
return false;
}
int32_t MultiscaleDeformableAttnPlugin::configurePlugin(
DynamicPluginTensorDesc const* in, int32_t nbInputs, DynamicPluginTensorDesc const* out, int32_t nbOutputs) noexcept
{
try
{
PLUGIN_VALIDATE(in != nullptr, "in pointer is null");
PLUGIN_VALIDATE(out != nullptr, "out pointer is null");
PLUGIN_VALIDATE(nbInputs == 5, "Expected 5 inputs");
PLUGIN_VALIDATE(nbOutputs == 1, "Expected 1 output");
// Check for valid input dimensions
PLUGIN_VALIDATE(in[0].desc.dims.nbDims == 4, "First input must have 4 dimensions");
PLUGIN_VALIDATE(in[1].desc.dims.nbDims == 2, "Second input must have 2 dimensions");
PLUGIN_VALIDATE(in[2].desc.dims.nbDims == 1, "Third input must have 1 dimension");
PLUGIN_VALIDATE(in[3].desc.dims.nbDims == 6, "Fourth input must have 6 dimensions");
PLUGIN_VALIDATE(in[4].desc.dims.nbDims == 5, "Fifth input must have 5 dimensions");
// Check M dimensions consistency
PLUGIN_VALIDATE(in[0].desc.dims.d[2] == in[3].desc.dims.d[2], "Inconsistent dimensions for number of heads");
PLUGIN_VALIDATE(in[0].desc.dims.d[2] == in[4].desc.dims.d[2], "Inconsistent dimensions for number of heads");
// Check L dimensions consistency
PLUGIN_VALIDATE(in[1].desc.dims.d[0] == in[2].desc.dims.d[0], "Inconsistent dimensions for number of levels");
PLUGIN_VALIDATE(in[1].desc.dims.d[0] == in[3].desc.dims.d[3], "Inconsistent dimensions for number of levels");
PLUGIN_VALIDATE(in[1].desc.dims.d[0] == in[4].desc.dims.d[3], "Inconsistent dimensions for number of levels");
// Check P dimensions consistency
PLUGIN_VALIDATE(in[3].desc.dims.d[4] == in[4].desc.dims.d[4], "Inconsistent dimensions for number of points");
// Check Lq dimensions consistency
PLUGIN_VALIDATE(in[3].desc.dims.d[1] == in[4].desc.dims.d[1], "Inconsistent dimensions for query length");
return STATUS_SUCCESS;
}
catch (std::exception const& e)
{
caughtError(e);
}
return STATUS_FAILURE;
}
PluginFieldCollection const* MultiscaleDeformableAttnPlugin::getFieldsToSerialize() noexcept
{
try
{
mDataToSerialize.clear();
// This plugin has no fields to serialize
mFCToSerialize.nbFields = mDataToSerialize.size();
mFCToSerialize.fields = mDataToSerialize.data();
return &mFCToSerialize;
}
catch (std::exception const& e)
{
caughtError(e);
}
return nullptr;
}
// IPluginV3OneRuntime methods
size_t MultiscaleDeformableAttnPlugin::getWorkspaceSize(DynamicPluginTensorDesc const* inputs, int32_t nbInputs,
DynamicPluginTensorDesc const* outputs, int32_t nbOutputs) const noexcept
{
// No workspace needed for this plugin
return 0;
}
int32_t MultiscaleDeformableAttnPlugin::onShapeChange(
PluginTensorDesc const* inputs, int32_t nbInputs, PluginTensorDesc const* outputs, int32_t nbOutputs) noexcept
{
try
{
PLUGIN_VALIDATE(inputs != nullptr, "inputs pointer is null");
PLUGIN_VALIDATE(outputs != nullptr, "outputs pointer is null");
PLUGIN_VALIDATE(nbInputs == 5, "Expected 5 inputs");
PLUGIN_VALIDATE(nbOutputs == 1, "Expected 1 output");
// Check for valid input dimensions
PLUGIN_VALIDATE(inputs[0].dims.nbDims == 4, "First input must have 4 dimensions");
PLUGIN_VALIDATE(inputs[1].dims.nbDims == 2, "Second input must have 2 dimensions");
PLUGIN_VALIDATE(inputs[2].dims.nbDims == 1, "Third input must have 1 dimension");
PLUGIN_VALIDATE(inputs[3].dims.nbDims == 6, "Fourth input must have 6 dimensions");
PLUGIN_VALIDATE(inputs[4].dims.nbDims == 5, "Fifth input must have 5 dimensions");
// Check M dimensions consistency
PLUGIN_VALIDATE(inputs[0].dims.d[2] == inputs[3].dims.d[2], "Inconsistent dimensions for number of heads");
PLUGIN_VALIDATE(inputs[0].dims.d[2] == inputs[4].dims.d[2], "Inconsistent dimensions for number of heads");
// Check L dimensions consistency
PLUGIN_VALIDATE(inputs[1].dims.d[0] == inputs[2].dims.d[0], "Inconsistent dimensions for number of levels");
PLUGIN_VALIDATE(inputs[1].dims.d[0] == inputs[3].dims.d[3], "Inconsistent dimensions for number of levels");
PLUGIN_VALIDATE(inputs[1].dims.d[0] == inputs[4].dims.d[3], "Inconsistent dimensions for number of levels");
// Check P dimensions consistency
PLUGIN_VALIDATE(inputs[3].dims.d[4] == inputs[4].dims.d[4], "Inconsistent dimensions for number of points");
// Check Lq dimensions consistency
PLUGIN_VALIDATE(inputs[3].dims.d[1] == inputs[4].dims.d[1], "Inconsistent dimensions for query length");
return STATUS_SUCCESS;
}
catch (std::exception const& e)
{
caughtError(e);
}
return STATUS_FAILURE;
}
IPluginV3* MultiscaleDeformableAttnPlugin::attachToContext(IPluginResourceContext* context) noexcept
{
try
{
// No resources need to be attached
return clone();
}
catch (std::exception const& e)
{
caughtError(e);
}
return nullptr;
}
int32_t MultiscaleDeformableAttnPlugin::enqueue(PluginTensorDesc const* inputDesc, PluginTensorDesc const* outputDesc,
void const* const* inputs, void* const* outputs, void* workspace, cudaStream_t stream) noexcept
{
try
{
PLUGIN_VALIDATE(
inputDesc != nullptr && inputs != nullptr && outputs != nullptr, "Null pointers found in enqueue");
int32_t const batch = inputDesc[0].dims.d[0];
int32_t spatialSize = inputDesc[0].dims.d[1];
int32_t numHeads = inputDesc[0].dims.d[2];
int32_t channels = inputDesc[0].dims.d[3];
int32_t numLevels = inputDesc[1].dims.d[0];
int32_t numQuery = inputDesc[3].dims.d[1];
int32_t numPoint = inputDesc[3].dims.d[4];
int32_t rc = 0;
if (inputDesc[0].type == DataType::kFLOAT)
{
auto const* value = static_cast<float const*>(inputs[0]);
auto const* spatialShapes = static_cast<int32_t const*>(inputs[1]);
auto const* levelStartIndex = static_cast<int32_t const*>(inputs[2]);
auto const* samplingLoc = static_cast<float const*>(inputs[3]);
auto const* attnWeight = static_cast<float const*>(inputs[4]);
auto* output = static_cast<float*>(outputs[0]);
rc = ms_deform_attn_cuda_forward(stream, value, spatialShapes, levelStartIndex, samplingLoc, attnWeight,
output, batch, spatialSize, numHeads, channels, numLevels, numQuery, numPoint);
}
else if (inputDesc[0].type == DataType::kHALF)
{
auto const* value = static_cast<__half const*>(inputs[0]);
auto const* spatialShapes = static_cast<int32_t const*>(inputs[1]);
auto const* levelStartIndex = static_cast<int32_t const*>(inputs[2]);
auto const* samplingLoc = static_cast<__half const*>(inputs[3]);
auto const* attnWeight = static_cast<__half const*>(inputs[4]);
auto* output = static_cast<__half*>(outputs[0]);
rc = ms_deform_attn_cuda_forward(stream, value, spatialShapes, levelStartIndex, samplingLoc, attnWeight,
output, batch, spatialSize, numHeads, channels, numLevels, numQuery, numPoint);
}
else
{
PLUGIN_VALIDATE(false, "Unsupported data type");
}
return rc;
}
catch (std::exception const& e)
{
caughtError(e);
}
return STATUS_FAILURE;
}
// Plugin Creator Implementation
MultiscaleDeformableAttnPluginCreator::MultiscaleDeformableAttnPluginCreator()
{
mPluginAttributes.clear();
mFC.nbFields = mPluginAttributes.size();
mFC.fields = mPluginAttributes.data();
}
char const* MultiscaleDeformableAttnPluginCreator::getPluginName() const noexcept
{
return DMHA_NAME;
}
char const* MultiscaleDeformableAttnPluginCreator::getPluginVersion() const noexcept
{
return DMHA_VERSION;
}
PluginFieldCollection const* MultiscaleDeformableAttnPluginCreator::getFieldNames() noexcept
{
return &mFC;
}
IPluginV3* MultiscaleDeformableAttnPluginCreator::createPlugin(
char const* name, PluginFieldCollection const* fc, TensorRTPhase phase) noexcept
{
try
{
// This plugin doesn't have any configurable parameters
return new MultiscaleDeformableAttnPlugin();
}
catch (std::exception const& e)
{
caughtError(e);
}
return nullptr;
}
void MultiscaleDeformableAttnPluginCreator::setPluginNamespace(char const* pluginNamespace) noexcept
{
mNamespace = pluginNamespace;
}
char const* MultiscaleDeformableAttnPluginCreator::getPluginNamespace() const noexcept
{
return mNamespace.c_str();
}
} // namespace nvinfer1::plugin