class ResourceManager

Declaration

class ResourceManager { /* full declaration omitted */ };

Description

A resource manager for processor resource units and groups. This class owns all the ResourceState objects, and it is responsible for acting on requests from a Scheduler by updating the internal state of ResourceState objects. This class doesn't know about instruction itineraries and functional units. In future, it can be extended to support itineraries too through the same public interface.

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:311

Member Variables

private std::vector<std::unique_ptr<ResourceState>> Resources

private std::vector<std::unique_ptr<ResourceStrategy>> Strategies

private std::vector<uint64_t> Resource2Groups

private SmallVector<uint64_t, 8> ProcResID2Mask

private SmallVector<unsigned int, 8> ResIndex2ProcResID

private SmallDenseMap<llvm::mca::ResourceRef, unsigned int> BusyResources

private uint64_t ProcResUnitMask

private uint64_t AvailableProcResUnits

private uint64_t ReservedResourceGroups

private uint64_t AvailableBuffers

private uint64_t ReservedBuffers

Method Overview

• public ResourceManager(const llvm::MCSchedModel & SM)
• public llvm::mca::ResourceStateEvent canBeDispatched(uint64_t ConsumedBuffers) const
• public uint64_t checkAvailability(const llvm::mca::InstrDesc & Desc) const
• public void cycleEvent(SmallVectorImpl<llvm::mca::ResourceRef> & ResourcesFreed)
• public void dump() const
• public uint64_t getAvailableProcResUnits() const
• private unsigned int getNumUnits(uint64_t ResourceID) const
• public uint64_t getProcResUnitMask() const
• public void issueInstruction(const llvm::mca::InstrDesc & Desc, SmallVectorImpl<std::pair<ResourceRef, ResourceCycles>> & Pipes)
• private void release(const llvm::mca::ResourceRef & RR)
• public void releaseBuffers(uint64_t ConsumedBuffers)
• public void releaseResource(uint64_t ResourceID)
• public void reserveBuffers(uint64_t ConsumedBuffers)
• public void reserveResource(uint64_t ResourceID)
• public unsigned int resolveResourceMask(uint64_t Mask) const
• private llvm::mca::ResourceRef selectPipe(uint64_t ResourceID)
• public void setCustomStrategy(std::unique_ptr<ResourceStrategy> S, unsigned int ResourceID)
• private void setCustomStrategyImpl(std::unique_ptr<ResourceStrategy> S, uint64_t ResourceMask)
• private void use(const llvm::mca::ResourceRef & RR)
• public virtual ~ResourceManager()

Methods

¶ResourceManager(const llvm::MCSchedModel& SM)

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:386

Parameters

const llvm::MCSchedModel& SM

¶llvm::mca::ResourceStateEvent canBeDispatched(
    uint64_t ConsumedBuffers) const

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:400

Parameters

uint64_t ConsumedBuffers

¶uint64_t checkAvailability(
    const llvm::mca::InstrDesc& Desc) const

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:426

Parameters

const llvm::mca::InstrDesc& Desc

¶void cycleEvent(
    SmallVectorImpl<llvm::mca::ResourceRef>&
        ResourcesFreed)

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:435

Parameters

SmallVectorImpl<llvm::mca::ResourceRef>& ResourcesFreed

¶void dump() const

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:438

¶uint64_t getAvailableProcResUnits() const

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:429

¶unsigned int getNumUnits(
    uint64_t ResourceID) const

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:378

Parameters

uint64_t ResourceID

¶uint64_t getProcResUnitMask() const

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:428

¶void issueInstruction(
    const llvm::mca::InstrDesc& Desc,
    SmallVectorImpl<
        std::pair<ResourceRef, ResourceCycles>>&
        Pipes)

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:431

Parameters

const llvm::mca::InstrDesc& Desc

SmallVectorImpl< std::pair<ResourceRef, ResourceCycles>>& Pipes

¶void release(const llvm::mca::ResourceRef& RR)

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:376

Parameters

const llvm::mca::ResourceRef& RR

¶void releaseBuffers(uint64_t ConsumedBuffers)

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:413

Parameters

uint64_t ConsumedBuffers

¶void releaseResource(uint64_t ResourceID)

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:420

Parameters

uint64_t ResourceID

¶void reserveBuffers(uint64_t ConsumedBuffers)

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:407

Parameters

uint64_t ConsumedBuffers

¶void reserveResource(uint64_t ResourceID)

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:417

Parameters

uint64_t ResourceID

¶unsigned int resolveResourceMask(
    uint64_t Mask) const

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:403

Parameters

uint64_t Mask

¶llvm::mca::ResourceRef selectPipe(
    uint64_t ResourceID)

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:373

Parameters

uint64_t ResourceID

¶void setCustomStrategy(
    std::unique_ptr<ResourceStrategy> S,
    unsigned int ResourceID)

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:391

Parameters

std::unique_ptr<ResourceStrategy> S

unsigned int ResourceID

¶void setCustomStrategyImpl(
    std::unique_ptr<ResourceStrategy> S,
    uint64_t ResourceMask)

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:382

Parameters

std::unique_ptr<ResourceStrategy> S

uint64_t ResourceMask

¶void use(const llvm::mca::ResourceRef& RR)

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:375

Parameters

const llvm::mca::ResourceRef& RR

¶virtual ~ResourceManager()

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:387