// Copyright © Advanced Micro Devices, Inc., or its affiliates.
// SPDX-License-Identifier:  MIT

#include <limits>
#include <string>

#include <hipdnn_plugin_sdk/GlobalKnobDefines.hpp>
#include <hipdnn_plugin_sdk/PluginException.hpp>
#include <hipdnn_plugin_sdk/PluginLogging.hpp>
#include <miopen/miopen.h>

#include "MiopenConvDescriptor.hpp"
#include "MiopenConvPlanBuilder.hpp"
#include "MiopenUtils.hpp"
#include "engines/plans/MiopenConvBwdPlan.hpp"
#include "engines/plans/MiopenConvFwdPlan.hpp"
#include "engines/plans/MiopenConvWrwPlan.hpp"

// These miopenConvolution*GetWorkSpaceSizeRange entry points are exported from
// libMIOpen but intentionally absent from the public miopen.h, so we declare them
// locally to call them. The signatures are copied verbatim from MIOpen, whose
// no-op top-level `const` on the pointer-typedef parameters trips clang-tidy, so
// we suppress those checks to keep the prototypes identical.
// NOLINTBEGIN(misc-misplaced-const,readability-avoid-const-params-in-decls)
extern "C" {
miopenStatus_t
    miopenConvolutionForwardGetWorkSpaceSizeRange(miopenHandle_t handle,
                                                  const miopenTensorDescriptor_t wDesc,
                                                  const miopenTensorDescriptor_t xDesc,
                                                  const miopenConvolutionDescriptor_t convDesc,
                                                  const miopenTensorDescriptor_t yDesc,
                                                  size_t* minWorkspaceSize,
                                                  size_t* maxWorkspaceSize);

miopenStatus_t
    miopenConvolutionBackwardDataGetWorkSpaceSizeRange(miopenHandle_t handle,
                                                       const miopenTensorDescriptor_t dyDesc,
                                                       const miopenTensorDescriptor_t wDesc,
                                                       const miopenConvolutionDescriptor_t convDesc,
                                                       const miopenTensorDescriptor_t dxDesc,
                                                       size_t* minWorkspaceSize,
                                                       size_t* maxWorkspaceSize);

miopenStatus_t miopenConvolutionBackwardWeightsGetWorkSpaceSizeRange(
    miopenHandle_t handle,
    const miopenTensorDescriptor_t dyDesc,
    const miopenTensorDescriptor_t xDesc,
    const miopenConvolutionDescriptor_t convDesc,
    const miopenTensorDescriptor_t dwDesc,
    size_t* minWorkspaceSize,
    size_t* maxWorkspaceSize);
}
// NOLINTEND(misc-misplaced-const,readability-avoid-const-params-in-decls)

namespace miopen_plugin
{

MiopenConvPlanBuilder::MiopenConvPlanBuilder(bool deterministic)
    : _deterministic(deterministic)
{
}

namespace
{

bool isApplicableFwd(const HipdnnMiopenHandle& handle,
                     const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph,
                     bool deterministicEnabled)
{
    const auto& attr
        = opGraph.getNodeWrapper(0)
              .attributesAs<hipdnn_flatbuffers_sdk::data_objects::ConvolutionFwdAttributes>();

    size_t solutionCount = 0;
    try
    {
        const ConvFwdParams params(attr, opGraph.getTensorMap(), deterministicEnabled);

        if(!params.validTensors())
        {
            return false;
        }

        auto status = miopenConvolutionForwardGetSolutionCount(handle.miopenHandle,
                                                               params.w().tensorDescriptor(),
                                                               params.x().tensorDescriptor(),
                                                               params.conv().convDescriptor(),
                                                               params.y().tensorDescriptor(),
                                                               &solutionCount);
        if(status != miopenStatusSuccess)
        {
            return false;
        }
    }
    catch(const std::exception& e)
    {
        HIPDNN_PLUGIN_LOG_INFO(e.what());
        return false;
    }

    return solutionCount != 0;
}

bool isApplicableBwd(const HipdnnMiopenHandle& handle,
                     const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph,
                     bool deterministicEnabled)
{
    const auto& attr
        = opGraph.getNodeWrapper(0)
              .attributesAs<hipdnn_flatbuffers_sdk::data_objects::ConvolutionBwdAttributes>();

    size_t solutionCount = 0;
    try
    {
        const ConvBwdParams params(attr, opGraph.getTensorMap(), deterministicEnabled);

        if(!params.validTensors())
        {
            return false;
        }

        auto status = miopenConvolutionBackwardDataGetSolutionCount(handle.miopenHandle,
                                                                    params.dy().tensorDescriptor(),
                                                                    params.w().tensorDescriptor(),
                                                                    params.conv().convDescriptor(),
                                                                    params.dx().tensorDescriptor(),
                                                                    &solutionCount);
        if(status != miopenStatusSuccess)
        {
            return false;
        }
    }
    catch(const std::exception& e)
    {
        HIPDNN_PLUGIN_LOG_INFO(e.what());
        return false;
    }

    return solutionCount != 0;
}

bool isApplicableWrw(const HipdnnMiopenHandle& handle,
                     const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph,
                     bool deterministicEnabled)
{
    const auto& attr
        = opGraph.getNodeWrapper(0)
              .attributesAs<hipdnn_flatbuffers_sdk::data_objects::ConvolutionWrwAttributes>();

    size_t solutionCount = 0;
    try
    {
        const ConvWrwParams params(attr, opGraph.getTensorMap(), deterministicEnabled);

        if(!params.validTensors())
        {
            return false;
        }

        auto status
            = miopenConvolutionBackwardWeightsGetSolutionCount(handle.miopenHandle,
                                                               params.dy().tensorDescriptor(),
                                                               params.x().tensorDescriptor(),
                                                               params.conv().convDescriptor(),
                                                               params.dw().tensorDescriptor(),
                                                               &solutionCount);
        if(status != miopenStatusSuccess)
        {
            return false;
        }
    }
    catch(const std::exception& e)
    {
        HIPDNN_PLUGIN_LOG_INFO(e.what());
        return false;
    }

    return solutionCount != 0;
}

MiopenConvPlanBuilder::WorkspaceSizeRange
    getWorkspaceSizeRangeFwd(const HipdnnMiopenHandle& handle,
                             const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph,
                             bool deterministicEnabled)
{
    const auto& attr
        = opGraph.getNodeWrapper(0)
              .attributesAs<hipdnn_flatbuffers_sdk::data_objects::ConvolutionFwdAttributes>();
    const ConvFwdParams params(attr, opGraph.getTensorMap(), deterministicEnabled);

    size_t minWorkspace = 0;
    size_t maxWorkspace = 0;
    THROW_ON_MIOPEN_FAILURE(
        miopenConvolutionForwardGetWorkSpaceSizeRange(handle.miopenHandle,
                                                      params.w().tensorDescriptor(),
                                                      params.x().tensorDescriptor(),
                                                      params.conv().convDescriptor(),
                                                      params.y().tensorDescriptor(),
                                                      &minWorkspace,
                                                      &maxWorkspace));

    HIPDNN_PLUGIN_LOG_INFO("Convolution Fwd: Workspace range: min=" << minWorkspace
                                                                    << ", max=" << maxWorkspace);

    return {minWorkspace, maxWorkspace};
}

MiopenConvPlanBuilder::WorkspaceSizeRange
    getWorkspaceSizeRangeBwd(const HipdnnMiopenHandle& handle,
                             const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph,
                             bool deterministicEnabled)
{
    const auto& attr
        = opGraph.getNodeWrapper(0)
              .attributesAs<hipdnn_flatbuffers_sdk::data_objects::ConvolutionBwdAttributes>();
    const ConvBwdParams params(attr, opGraph.getTensorMap(), deterministicEnabled);

    size_t minWorkspace = 0;
    size_t maxWorkspace = 0;
    THROW_ON_MIOPEN_FAILURE(
        miopenConvolutionBackwardDataGetWorkSpaceSizeRange(handle.miopenHandle,
                                                           params.dy().tensorDescriptor(),
                                                           params.w().tensorDescriptor(),
                                                           params.conv().convDescriptor(),
                                                           params.dx().tensorDescriptor(),
                                                           &minWorkspace,
                                                           &maxWorkspace));

    HIPDNN_PLUGIN_LOG_INFO("Convolution Bwd: Workspace range: min=" << minWorkspace
                                                                    << ", max=" << maxWorkspace);

    return {minWorkspace, maxWorkspace};
}

MiopenConvPlanBuilder::WorkspaceSizeRange
    getWorkspaceSizeRangeWrw(const HipdnnMiopenHandle& handle,
                             const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph,
                             bool deterministicEnabled)
{
    const auto& attr
        = opGraph.getNodeWrapper(0)
              .attributesAs<hipdnn_flatbuffers_sdk::data_objects::ConvolutionWrwAttributes>();
    const ConvWrwParams params(attr, opGraph.getTensorMap(), deterministicEnabled);

    size_t minWorkspace = 0;
    size_t maxWorkspace = 0;
    THROW_ON_MIOPEN_FAILURE(
        miopenConvolutionBackwardWeightsGetWorkSpaceSizeRange(handle.miopenHandle,
                                                              params.dy().tensorDescriptor(),
                                                              params.x().tensorDescriptor(),
                                                              params.conv().convDescriptor(),
                                                              params.dw().tensorDescriptor(),
                                                              &minWorkspace,
                                                              &maxWorkspace));

    HIPDNN_PLUGIN_LOG_INFO("Convolution Wrw: Workspace range: min=" << minWorkspace
                                                                    << ", max=" << maxWorkspace);

    return {minWorkspace, maxWorkspace};
}

size_t getMaxWorkspaceSizeFwd(const HipdnnMiopenHandle& handle,
                              const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph,
                              const HipdnnMiopenSettings& executionSettings,
                              bool deterministicEnabled)
{
    size_t workSpaceSize = executionSettings.selectedWorkspaceSize();

    if(workSpaceSize == 0)
    {
        const auto& attr
            = opGraph.getNodeWrapper(0)
                  .attributesAs<hipdnn_flatbuffers_sdk::data_objects::ConvolutionFwdAttributes>();
        const ConvFwdParams params(attr, opGraph.getTensorMap(), deterministicEnabled);
        THROW_ON_MIOPEN_FAILURE(
            miopenConvolutionForwardGetWorkSpaceSize(handle.miopenHandle,
                                                     params.w().tensorDescriptor(),
                                                     params.x().tensorDescriptor(),
                                                     params.conv().convDescriptor(),
                                                     params.y().tensorDescriptor(),
                                                     &workSpaceSize));
    }

    return workSpaceSize;
}

size_t getMaxWorkspaceSizeBwd(const HipdnnMiopenHandle& handle,
                              const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph,
                              const HipdnnMiopenSettings& executionSettings,
                              bool deterministicEnabled)
{
    size_t workSpaceSize = executionSettings.selectedWorkspaceSize();

    if(workSpaceSize == 0)
    {
        const auto& attr
            = opGraph.getNodeWrapper(0)
                  .attributesAs<hipdnn_flatbuffers_sdk::data_objects::ConvolutionBwdAttributes>();
        const ConvBwdParams params(attr, opGraph.getTensorMap(), deterministicEnabled);

        THROW_ON_MIOPEN_FAILURE(
            miopenConvolutionBackwardDataGetWorkSpaceSize(handle.miopenHandle,
                                                          params.dy().tensorDescriptor(),
                                                          params.w().tensorDescriptor(),
                                                          params.conv().convDescriptor(),
                                                          params.dx().tensorDescriptor(),
                                                          &workSpaceSize));
    }

    return workSpaceSize;
}

size_t getMaxWorkspaceSizeWrw(const HipdnnMiopenHandle& handle,
                              const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph,
                              const HipdnnMiopenSettings& executionSettings,
                              bool deterministicEnabled)
{
    size_t workSpaceSize = executionSettings.selectedWorkspaceSize();

    if(workSpaceSize == 0)
    {
        const auto& attr
            = opGraph.getNodeWrapper(0)
                  .attributesAs<hipdnn_flatbuffers_sdk::data_objects::ConvolutionWrwAttributes>();
        const ConvWrwParams params(attr, opGraph.getTensorMap(), deterministicEnabled);

        THROW_ON_MIOPEN_FAILURE(
            miopenConvolutionBackwardWeightsGetWorkSpaceSize(handle.miopenHandle,
                                                             params.dy().tensorDescriptor(),
                                                             params.x().tensorDescriptor(),
                                                             params.conv().convDescriptor(),
                                                             params.dw().tensorDescriptor(),
                                                             &workSpaceSize));
    }

    return workSpaceSize;
}

void buildPlanFwd(const HipdnnMiopenHandle& handle,
                  const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph,
                  HipdnnMiopenContext& executionContext,
                  bool deterministicEnabled)
{
    const auto& attr
        = opGraph.getNodeWrapper(0)
              .attributesAs<hipdnn_flatbuffers_sdk::data_objects::ConvolutionFwdAttributes>();
    ConvFwdParams params(attr, opGraph.getTensorMap(), deterministicEnabled);
    auto plan = std::make_unique<ConvFwdPlan>(
        handle, std::move(params), executionContext.executionSettings());
    executionContext.setPlan(std::move(plan));
}

void buildPlanBwd(const HipdnnMiopenHandle& handle,
                  const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph,
                  HipdnnMiopenContext& executionContext,
                  bool deterministicEnabled)
{
    const auto& attr
        = opGraph.getNodeWrapper(0)
              .attributesAs<hipdnn_flatbuffers_sdk::data_objects::ConvolutionBwdAttributes>();
    ConvBwdParams params(attr, opGraph.getTensorMap(), deterministicEnabled);
    auto plan = std::make_unique<ConvBwdPlan>(
        handle, std::move(params), executionContext.executionSettings());
    executionContext.setPlan(std::move(plan));
}

void buildPlanWrw(const HipdnnMiopenHandle& handle,
                  const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph,
                  HipdnnMiopenContext& executionContext,
                  bool deterministicEnabled)
{
    const auto& attr
        = opGraph.getNodeWrapper(0)
              .attributesAs<hipdnn_flatbuffers_sdk::data_objects::ConvolutionWrwAttributes>();
    ConvWrwParams params(attr, opGraph.getTensorMap(), deterministicEnabled);
    auto plan = std::make_unique<ConvWrwPlan>(
        handle, std::move(params), executionContext.executionSettings());
    executionContext.setPlan(std::move(plan));
}

} // namespace

bool MiopenConvPlanBuilder::isApplicable(
    const HipdnnMiopenHandle& handle,
    const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph) const
{
    // Execute-time override shapes can diverge from the compile-time dims this
    // builder matched exactly; the plan bakes those dims into the MIOpen
    // descriptors it builds, so decline rather than risk a mismatch (RFC 0008 §4.6).
    if(opGraph.getGraph().is_override_shape_enabled())
    {
        HIPDNN_PLUGIN_LOG_INFO("Convolution plan builder does not support override shapes");
        return false;
    }

    if(opGraph.nodeCount() != 1)
    {
        HIPDNN_PLUGIN_LOG_INFO(
            "Convolution plan builder is applicable only for single node graphs. Graph "
            "has "
            << opGraph.nodeCount() << " nodes");
        return false;
    }

    if(opGraph.getNode(0).compute_data_type()
       != hipdnn_flatbuffers_sdk::data_objects::DataType::FLOAT)
    {
        HIPDNN_PLUGIN_LOG_ERROR("Convolution plan builder only supports nodes with an fp32 "
                                "compute_data_type");
        return false;
    }

    const auto& node = opGraph.getNode(0);
    bool ret = false;

    switch(node.attributes_type())
    {
    case hipdnn_flatbuffers_sdk::data_objects::NodeAttributes::ConvolutionFwdAttributes:
        ret = isApplicableFwd(handle, opGraph, _deterministic);
        break;
    case hipdnn_flatbuffers_sdk::data_objects::NodeAttributes::ConvolutionBwdAttributes:
        ret = isApplicableBwd(handle, opGraph, _deterministic);
        break;
    case hipdnn_flatbuffers_sdk::data_objects::NodeAttributes::ConvolutionWrwAttributes:
        ret = isApplicableWrw(handle, opGraph, _deterministic);
        break;
    default:
        break;
    }

    if(!ret)
    {
        HIPDNN_PLUGIN_LOG_INFO("Convolution plan builder is not applicable for this graph");
    }
    return ret;
}

MiopenConvPlanBuilder::WorkspaceSizeRange MiopenConvPlanBuilder::getWorkspaceSizeRange(
    const HipdnnMiopenHandle& handle,
    const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph) const
{
    if(opGraph.nodeCount() != 1)
    {
        throw hipdnn_plugin_sdk::HipdnnPluginException(
            HIPDNN_PLUGIN_STATUS_BAD_PARAM,
            "Convolution plan builder supports only single node graphs. Graph has "
                + std::to_string(opGraph.nodeCount()) + " nodes");
    }

    const auto& node = opGraph.getNode(0);

    switch(node.attributes_type())
    {
    case hipdnn_flatbuffers_sdk::data_objects::NodeAttributes::ConvolutionFwdAttributes:
        return getWorkspaceSizeRangeFwd(handle, opGraph, _deterministic);
    case hipdnn_flatbuffers_sdk::data_objects::NodeAttributes::ConvolutionBwdAttributes:
        return getWorkspaceSizeRangeBwd(handle, opGraph, _deterministic);
    case hipdnn_flatbuffers_sdk::data_objects::NodeAttributes::ConvolutionWrwAttributes:
        return getWorkspaceSizeRangeWrw(handle, opGraph, _deterministic);
    default:
        throw hipdnn_plugin_sdk::HipdnnPluginException(
            HIPDNN_PLUGIN_STATUS_BAD_PARAM,
            "Unsupported node type for convolution plan builder: "
                + std::string(
                    hipdnn_flatbuffers_sdk::data_objects::toString(node.attributes_type())));
    }
}

size_t MiopenConvPlanBuilder::getMaxWorkspaceSize(
    const HipdnnMiopenHandle& handle,
    const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph,
    const HipdnnMiopenSettings& executionSettings) const
{
    if(opGraph.nodeCount() != 1)
    {
        throw hipdnn_plugin_sdk::HipdnnPluginException(
            HIPDNN_PLUGIN_STATUS_BAD_PARAM,
            "Convolution plan builder supports only single node graphs. Graph has "
                + std::to_string(opGraph.nodeCount()) + " nodes");
    }

    const auto& node = opGraph.getNode(0);

    switch(node.attributes_type())
    {
    case hipdnn_flatbuffers_sdk::data_objects::NodeAttributes::ConvolutionFwdAttributes:
        return getMaxWorkspaceSizeFwd(handle, opGraph, executionSettings, _deterministic);
    case hipdnn_flatbuffers_sdk::data_objects::NodeAttributes::ConvolutionBwdAttributes:
        return getMaxWorkspaceSizeBwd(handle, opGraph, executionSettings, _deterministic);
    case hipdnn_flatbuffers_sdk::data_objects::NodeAttributes::ConvolutionWrwAttributes:
        return getMaxWorkspaceSizeWrw(handle, opGraph, executionSettings, _deterministic);
    default:
        throw hipdnn_plugin_sdk::HipdnnPluginException(
            HIPDNN_PLUGIN_STATUS_BAD_PARAM,
            "Unsupported node type for convolution plan builder: "
                + std::string(
                    hipdnn_flatbuffers_sdk::data_objects::toString(node.attributes_type())));
    }
}

void MiopenConvPlanBuilder::initializeExecutionSettings(
    const HipdnnMiopenHandle& handle,
    const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph,
    const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IEngineConfig& engineConfig,
    HipdnnMiopenSettings& executionSettings) const
{
    // Read workspace size limit knob setting
    if(engineConfig.isValid()
       && engineConfig.hasKnobSetting(hipdnn_plugin_sdk::WORKSPACE_SIZE_LIMIT_KNOB_NAME))
    {
        const auto& knobSetting
            = engineConfig.getKnobSettingByName(hipdnn_plugin_sdk::WORKSPACE_SIZE_LIMIT_KNOB_NAME);

        if(knobSetting.valueType() != hipdnn_flatbuffers_sdk::data_objects::KnobValue::IntValue)
        {
            throw hipdnn_plugin_sdk::HipdnnPluginException(
                HIPDNN_PLUGIN_STATUS_BAD_PARAM,
                "Workspace size limit knob setting value is not an integer. Type: "
                    + std::string(hipdnn_flatbuffers_sdk::data_objects::EnumNameKnobValue(
                        knobSetting.valueType())));
        }

        auto value = knobSetting.valueAs<hipdnn_flatbuffers_sdk::data_objects::IntValue>().value();

        if(value < 0)
        {
            throw hipdnn_plugin_sdk::HipdnnPluginException(
                HIPDNN_PLUGIN_STATUS_INVALID_VALUE,
                "Invalid workspace size limit value: " + std::to_string(value) + ". Must be >= 0");
        }

        const auto range = getWorkspaceSizeRange(handle, opGraph);

        if(static_cast<size_t>(value) < range.min || static_cast<size_t>(value) > range.max)
        {
            throw hipdnn_plugin_sdk::HipdnnPluginException(
                HIPDNN_PLUGIN_STATUS_INVALID_VALUE,
                "Invalid workspace size limit value: " + std::to_string(value)
                    + ". Must be in range [" + std::to_string(range.min) + ", "
                    + std::to_string(range.max) + "]");
        }

        executionSettings.setWorkspaceSizeLimit(static_cast<size_t>(value));
        executionSettings.setDefaultWorkspaceSize(range.max);
    }

    if(!executionSettings.workspaceSizeLimit().has_value())
    {
        const auto maxWs = getMaxWorkspaceSize(handle, opGraph, executionSettings);
        executionSettings.setDefaultWorkspaceSize(maxWs);
    }
}

void MiopenConvPlanBuilder::buildPlan(
    const HipdnnMiopenHandle& handle,
    const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph,
    [[maybe_unused]] const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IEngineConfig&
        engineConfig,
    HipdnnMiopenContext& executionContext) const
{
    if(opGraph.nodeCount() != 1)
    {
        throw hipdnn_plugin_sdk::HipdnnPluginException(
            HIPDNN_PLUGIN_STATUS_BAD_PARAM,
            "Convolution plan builder supports only single node graphs. Graph has "
                + std::to_string(opGraph.nodeCount()) + " nodes");
    }

    const auto& nodeWrapper = opGraph.getNodeWrapper(0);
    const auto nodeName = nodeWrapper.name();

    switch(nodeWrapper.attributesType())
    {
    case hipdnn_flatbuffers_sdk::data_objects::NodeAttributes::ConvolutionFwdAttributes:
        HIPDNN_PLUGIN_LOG_INFO("Building convolution fwd plan for node: " << nodeName);
        buildPlanFwd(handle, opGraph, executionContext, _deterministic);
        break;
    case hipdnn_flatbuffers_sdk::data_objects::NodeAttributes::ConvolutionBwdAttributes:
        HIPDNN_PLUGIN_LOG_INFO("Building convolution bwd plan for node: " << nodeName);
        buildPlanBwd(handle, opGraph, executionContext, _deterministic);
        break;
    case hipdnn_flatbuffers_sdk::data_objects::NodeAttributes::ConvolutionWrwAttributes:
        HIPDNN_PLUGIN_LOG_INFO("Building convolution wrw plan for node: " << nodeName);
        buildPlanWrw(handle, opGraph, executionContext, _deterministic);
        break;
    default:
        throw hipdnn_plugin_sdk::HipdnnPluginException(
            HIPDNN_PLUGIN_STATUS_BAD_PARAM,
            "Unsupported node type for convolution plan builder: "
                + std::string(
                    hipdnn_flatbuffers_sdk::data_objects::toString(nodeWrapper.attributesType())));
    }
}

std::vector<hipdnn_flatbuffers_sdk::data_objects::KnobT> MiopenConvPlanBuilder::getCustomKnobs(
    const HipdnnMiopenHandle& handle,
    const hipdnn_flatbuffers_sdk::flatbuffer_utilities::IGraph& opGraph) const
{
    std::vector<hipdnn_flatbuffers_sdk::data_objects::KnobT> knobs;

    if(!isApplicable(handle, opGraph))
    {
        return knobs;
    }

    // Workspace size limit knob
    const auto range = getWorkspaceSizeRange(handle, opGraph);

    // Validate that size_t values can fit into int64_t
    if(range.min > std::numeric_limits<int64_t>::max())
    {
        throw hipdnn_plugin_sdk::HipdnnPluginException(
            HIPDNN_PLUGIN_STATUS_INTERNAL_ERROR,
            "Workspace size range minimum (" + std::to_string(range.min)
                + ") exceeds maximum representable int64_t value");
    }
    if(range.max > std::numeric_limits<int64_t>::max())
    {
        throw hipdnn_plugin_sdk::HipdnnPluginException(
            HIPDNN_PLUGIN_STATUS_INTERNAL_ERROR,
            "Workspace size range maximum (" + std::to_string(range.max)
                + ") exceeds maximum representable int64_t value");
    }

    const auto minWorkspace = static_cast<int64_t>(range.min);
    const auto maxWorkspace = static_cast<int64_t>(range.max);

    hipdnn_flatbuffers_sdk::data_objects::KnobT workspaceKnob;
    workspaceKnob.knob_id = hipdnn_plugin_sdk::WORKSPACE_SIZE_LIMIT_KNOB_NAME;
    workspaceKnob.description = "Workspace size limit in bytes";

    hipdnn_flatbuffers_sdk::data_objects::IntValueT workspaceDefaultValue;
    workspaceDefaultValue.value = maxWorkspace;
    workspaceKnob.default_value.Set(workspaceDefaultValue);

    hipdnn_flatbuffers_sdk::data_objects::IntConstraintT workspaceConstraint;
    workspaceConstraint.min_value = minWorkspace;
    workspaceConstraint.max_value = maxWorkspace;
    workspaceConstraint.step = 1;
    workspaceKnob.constraint.Set(workspaceConstraint);

    knobs.push_back(std::move(workspaceKnob));

    return knobs;
}

} // namespace miopen_plugin