#include <stage2_mmu.hh>

Inheritance diagram for ArmISA::Stage2MMU:

Classes
class	Stage2Translation
	This translation class is used to trigger the data fetch once a timing translation returns the translated physical address. More...

Public Types
typedef ArmStage2MMUParams	Params

Public Types inherited from SimObject
typedef SimObjectParams	Params

Public Member Functions
	Stage2MMU (const Params *p)

DmaPort &	getDMAPort ()
	Get the port that ultimately belongs to the stage-two MMU, but is used by the two table walkers, and is exposed externally and connected through the stage-one table walker. More...

Fault	readDataUntimed (ThreadContext tc, Addr oVAddr, Addr descAddr, uint8_t data, int numBytes, Request::Flags flags, bool isFunctional)

void	readDataTimed (ThreadContext tc, Addr descAddr, Stage2Translation translation, int numBytes, Request::Flags flags)

TLB *	stage1Tlb () const

TLB *	stage2Tlb () const

Public Member Functions inherited from SimObject
const Params *	params () const

	SimObject (const Params *_params)

virtual	~SimObject ()

virtual const std::string	name () const

virtual void	init ()
	init() is called after all C++ SimObjects have been created and all ports are connected. More...

virtual void	loadState (CheckpointIn &cp)
	loadState() is called on each SimObject when restoring from a checkpoint. More...

virtual void	initState ()
	initState() is called on each SimObject when not restoring from a checkpoint. More...

virtual void	regProbePoints ()
	Register probe points for this object. More...

virtual void	regProbeListeners ()
	Register probe listeners for this object. More...

ProbeManager *	getProbeManager ()
	Get the probe manager for this object. More...

virtual Port &	getPort (const std::string &if_name, PortID idx=InvalidPortID)
	Get a port with a given name and index. More...

virtual void	startup ()
	startup() is the final initialization call before simulation. More...

DrainState	drain () override
	Provide a default implementation of the drain interface for objects that don't need draining. More...

virtual void	memWriteback ()
	Write back dirty buffers to memory using functional writes. More...

virtual void	memInvalidate ()
	Invalidate the contents of memory buffers. More...

void	serialize (CheckpointOut &cp) const override
	Serialize an object. More...

void	unserialize (CheckpointIn &cp) override
	Unserialize an object. More...

Public Member Functions inherited from EventManager
EventQueue *	eventQueue () const

void	schedule (Event &event, Tick when)

void	deschedule (Event &event)

void	reschedule (Event &event, Tick when, bool always=false)

void	schedule (Event *event, Tick when)

void	deschedule (Event *event)

void	reschedule (Event *event, Tick when, bool always=false)

void	wakeupEventQueue (Tick when=(Tick) -1)
	This function is not needed by the usual gem5 event loop but may be necessary in derived EventQueues which host gem5 on other schedulers. More...

void	setCurTick (Tick newVal)

	EventManager (EventManager &em)
	Event manger manages events in the event queue. More...

	EventManager (EventManager *em)

	EventManager (EventQueue *eq)

Public Member Functions inherited from Serializable
	Serializable ()

virtual	~Serializable ()

void	serializeSection (CheckpointOut &cp, const char *name) const
	Serialize an object into a new section. More...

void	serializeSection (CheckpointOut &cp, const std::string &name) const

void	unserializeSection (CheckpointIn &cp, const char *name)
	Unserialize an a child object. More...

void	unserializeSection (CheckpointIn &cp, const std::string &name)

Public Member Functions inherited from Drainable
DrainState	drainState () const
	Return the current drain state of an object. More...

virtual void	notifyFork ()
	Notify a child process of a fork. More...

Public Member Functions inherited from Stats::Group
	Group (Group parent, const char name=nullptr)
	Construct a new statistics group. More...

virtual	~Group ()

virtual void	regStats ()
	Callback to set stat parameters. More...

virtual void	resetStats ()
	Callback to reset stats. More...

virtual void	preDumpStats ()
	Callback before stats are dumped. More...

void	addStat (Stats::Info *info)
	Register a stat with this group. More...

const std::map< std::string, Group * > &	getStatGroups () const
	Get all child groups associated with this object. More...

const std::vector< Info * > &	getStats () const
	Get all stats associated with this object. More...

void	addStatGroup (const char name, Group block)
	Add a stat block as a child of this block. More...

const Info *	resolveStat (std::string name) const
	Resolve a stat by its name within this group. More...

	Group ()=delete

	Group (const Group &)=delete

Group &	operator= (const Group &)=delete

Protected Attributes
DmaPort	port
	Port to issue translation requests from. More...

RequestorID	requestorId
	Request id for requests generated by this MMU. More...

Protected Attributes inherited from SimObject
const SimObjectParams *	_params
	Cached copy of the object parameters. More...

Protected Attributes inherited from EventManager
EventQueue *	eventq
	A pointer to this object's event queue. More...

Private Attributes
TLB *	_stage1Tlb

TLB *	_stage2Tlb
	The TLB that will cache the stage 2 look ups. More...

Additional Inherited Members
Static Public Member Functions inherited from SimObject
static void	serializeAll (CheckpointOut &cp)
	Serialize all SimObjects in the system. More...

static SimObject *	find (const char *name)
	Find the SimObject with the given name and return a pointer to it. More...

Static Public Member Functions inherited from Serializable
static const std::string &	currentSection ()
	Gets the fully-qualified name of the active section. More...

static void	serializeAll (const std::string &cpt_dir)
	Serializes all the SimObjects. More...

static void	unserializeGlobals (CheckpointIn &cp)

Protected Member Functions inherited from Drainable
	Drainable ()

virtual	~Drainable ()

virtual void	drainResume ()
	Resume execution after a successful drain. More...

void	signalDrainDone () const
	Signal that an object is drained. More...

Detailed Description

Definition at line 50 of file stage2_mmu.hh.

Member Typedef Documentation

◆ Params

typedef ArmStage2MMUParams ArmISA::Stage2MMU::Params

Definition at line 104 of file stage2_mmu.hh.

Constructor & Destructor Documentation

◆ Stage2MMU()

Stage2MMU::Stage2MMU ( const Params * p )

Definition at line 49 of file stage2_mmu.cc.

References requestorId, ArmISA::TLB::setMMU(), stage1Tlb(), and stage2Tlb().

Member Function Documentation

◆ getDMAPort()

DmaPort& ArmISA::Stage2MMU::getDMAPort ( )

inline

Get the port that ultimately belongs to the stage-two MMU, but is used by the two table walkers, and is exposed externally and connected through the stage-one table walker.

Definition at line 112 of file stage2_mmu.hh.

References port.

Referenced by ArmISA::TLB::getTableWalkerPort().

◆ readDataTimed()

void Stage2MMU::readDataTimed	(	ThreadContext *	tc,
		Addr	descAddr,
		Stage2Translation *	translation,
		int	numBytes,
		Request::Flags	flags
	)

Definition at line 100 of file stage2_mmu.cc.

References Request::PT_WALK, requestorId, ArmISA::Stage2MMU::Stage2Translation::setVirt(), and ArmISA::Stage2MMU::Stage2Translation::translateTiming().

Referenced by ArmISA::TableWalker::fetchDescriptor().

◆ readDataUntimed()

Fault Stage2MMU::readDataUntimed	(	ThreadContext *	tc,
		Addr	oVAddr,
		Addr	descAddr,
		uint8_t *	data,
		int	numBytes,
		Request::Flags	flags,
		bool	isFunctional
	)

Definition at line 62 of file stage2_mmu.cc.

References ArmISA::ArmFault::annotate(), data, Packet::dataStatic(), Packet::isError(), Request::NO_ACCESS, NoFault, ArmISA::ArmFault::OVA, port, Request::PT_WALK, BaseTLB::Read, MemCmd::ReadReq, requestorId, ArmISA::ArmFault::S1PTW, RequestPort::sendAtomic(), RequestPort::sendFunctional(), stage2Tlb(), ArmISA::TLB::translateAtomic(), and ArmISA::TLB::translateFunctional().

Referenced by ArmISA::TableWalker::fetchDescriptor().

◆ stage1Tlb()

TLB* ArmISA::Stage2MMU::stage1Tlb ( ) const

inline

Definition at line 120 of file stage2_mmu.hh.

References _stage1Tlb.

Referenced by Stage2MMU().

◆ stage2Tlb()

TLB* ArmISA::Stage2MMU::stage2Tlb ( ) const

inline

Definition at line 121 of file stage2_mmu.hh.

References _stage2Tlb.

Referenced by ArmISA::TLB::init(), readDataUntimed(), Stage2MMU(), and ArmISA::Stage2MMU::Stage2Translation::translateTiming().

Member Data Documentation

◆ _stage1Tlb

TLB* ArmISA::Stage2MMU::_stage1Tlb

private

Definition at line 53 of file stage2_mmu.hh.

Referenced by stage1Tlb().

◆ _stage2Tlb

TLB* ArmISA::Stage2MMU::_stage2Tlb

private

The TLB that will cache the stage 2 look ups.

Definition at line 55 of file stage2_mmu.hh.

Referenced by stage2Tlb().

◆ port

DmaPort ArmISA::Stage2MMU::port

protected

Port to issue translation requests from.

Definition at line 60 of file stage2_mmu.hh.

Referenced by getDMAPort(), and readDataUntimed().

◆ requestorId

RequestorID ArmISA::Stage2MMU::requestorId

protected

Request id for requests generated by this MMU.

Definition at line 63 of file stage2_mmu.hh.

Referenced by readDataTimed(), readDataUntimed(), ArmISA::Stage2MMU::Stage2Translation::setVirt(), and Stage2MMU().

The documentation for this class was generated from the following files:

arch/arm/stage2_mmu.hh
arch/arm/stage2_mmu.cc

Classes

Public Types

Public Member Functions

Protected Attributes

Private Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Params

Constructor & Destructor Documentation

◆ Stage2MMU()

Member Function Documentation

◆ getDMAPort()

◆ readDataTimed()

◆ readDataUntimed()

◆ stage1Tlb()

◆ stage2Tlb()

Member Data Documentation

◆ _stage1Tlb

◆ _stage2Tlb

◆ port

◆ requestorId