#include <tlb.hh>

Inheritance diagram for gem5::PowerISA::TLB:

Public Types
typedef PowerTLBParams	Params

Public Types inherited from gem5::SimObject
typedef SimObjectParams	Params

Public Member Functions
	TLB (const Params &p)

virtual	~TLB ()

void	takeOverFrom (BaseTLB *otlb) override
	Take over from an old tlb context.

int	probeEntry (Addr vpn, uint8_t) const

PowerISA::PTE *	getEntry (unsigned) const

int	getsize () const

PowerISA::PTE &	index (bool advance=true)

void	insert (Addr vaddr, PowerISA::PTE &pte)

void	insertAt (PowerISA::PTE &pte, unsigned Index, int _smallPages)

void	flushAll () override
	Remove all entries from the TLB.

void	demapPage (Addr vaddr, uint64_t asn) override

Fault	translateInst (const RequestPtr &req, ThreadContext *tc)

Fault	translateData (const RequestPtr &req, ThreadContext *tc, bool write)

Fault	translateAtomic (const RequestPtr &req, ThreadContext *tc, BaseMMU::Mode mode) override

void	translateTiming (const RequestPtr &req, ThreadContext tc, BaseMMU::Translation translation, BaseMMU::Mode mode) override

Fault	translateFunctional (const RequestPtr &req, ThreadContext *tc, BaseMMU::Mode mode) override

Fault	finalizePhysical (const RequestPtr &req, ThreadContext *tc, BaseMMU::Mode mode) const override
	Do post-translation physical address finalization.

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

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

Public Member Functions inherited from gem5::BaseTLB
virtual Port *	getTableWalkerPort ()
	Get the table walker port if present.

void	memInvalidate ()
	Invalidate the contents of memory buffers.

TypeTLB	type () const

BaseTLB *	nextLevel () const

Public Member Functions inherited from gem5::SimObject
const Params &	params () const

	SimObject (const Params &p)

virtual	~SimObject ()

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

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

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

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

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

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

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

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

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

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

Public Member Functions inherited from gem5::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.

void	setCurTick (Tick newVal)

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

	EventManager (EventManager *em)

	EventManager (EventQueue *eq)

Public Member Functions inherited from gem5::Serializable
	Serializable ()

virtual	~Serializable ()

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

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

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

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

Public Member Functions inherited from gem5::Drainable
DrainState	drainState () const
	Return the current drain state of an object.

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

Public Member Functions inherited from gem5::statistics::Group
	Group (Group parent, const char name=nullptr)
	Construct a new statistics group.

virtual	~Group ()

virtual void	regStats ()
	Callback to set stat parameters.

virtual void	resetStats ()
	Callback to reset stats.

virtual void	preDumpStats ()
	Callback before stats are dumped.

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

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

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

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

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

void	mergeStatGroup (Group *block)
	Merge the contents (stats & children) of a block to this block.

	Group ()=delete

	Group (const Group &)=delete

Group &	operator= (const Group &)=delete

Public Member Functions inherited from gem5::Named
	Named (const std::string &name_)

virtual	~Named ()=default

virtual std::string	name () const

Static Public Member Functions
static bool	validVirtualAddress (Addr vaddr)

static Fault	checkCacheability (const RequestPtr &req)

Static Public Member Functions inherited from gem5::SimObject
static void	serializeAll (const std::string &cpt_dir)
	Create a checkpoint by serializing all SimObjects in the system.

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

static void	setSimObjectResolver (SimObjectResolver *resolver)
	There is a single object name resolver, and it is only set when simulation is restoring from checkpoints.

static SimObjectResolver *	getSimObjectResolver ()
	There is a single object name resolver, and it is only set when simulation is restoring from checkpoints.

Static Public Member Functions inherited from gem5::Serializable
static const std::string &	currentSection ()
	Gets the fully-qualified name of the active section.

static void	generateCheckpointOut (const std::string &cpt_dir, std::ofstream &outstream)
	Generate a checkpoint file so that the serialization can be routed to it.

Public Attributes
int	smallPages

Protected Types
typedef std::multimap< Addr, int >	PageTable

Protected Member Functions
void	nextnlu ()

PowerISA::PTE *	lookup (Addr vpn, uint8_t asn) const

Protected Member Functions inherited from gem5::BaseTLB
	BaseTLB (const BaseTLBParams &p)

Protected Member Functions inherited from gem5::Drainable
	Drainable ()

virtual	~Drainable ()

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

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

Protected Attributes
PageTable	lookupTable

PowerISA::PTE *	table

int	size

int	nlu

Protected Attributes inherited from gem5::BaseTLB
TypeTLB	_type

BaseTLB *	_nextLevel

Protected Attributes inherited from gem5::SimObject
const SimObjectParams &	_params
	Cached copy of the object parameters.

Protected Attributes inherited from gem5::EventManager
EventQueue *	eventq
	A pointer to this object's event queue.

Detailed Description

Definition at line 94 of file tlb.hh.

Member Typedef Documentation

◆ PageTable

typedef std::multimap<Addr, int> gem5::PowerISA::TLB::PageTable

protected

Definition at line 97 of file tlb.hh.

◆ Params

typedef PowerTLBParams gem5::PowerISA::TLB::Params

Definition at line 115 of file tlb.hh.

Constructor & Destructor Documentation

◆ TLB()

gem5::PowerISA::TLB::TLB ( const Params & p )

◆ ~TLB()

virtual gem5::PowerISA::TLB::~TLB ( )

virtual

Member Function Documentation

◆ checkCacheability()

Fault gem5::TLB::checkCacheability ( const RequestPtr & req )

inlinestatic

Definition at line 139 of file tlb.cc.

References gem5::NoFault.

◆ demapPage()

void gem5::PowerISA::TLB::demapPage	(	Addr	vaddr,
		uint64_t	asn )

inlineoverridevirtual

Implements gem5::BaseTLB.

Definition at line 138 of file tlb.hh.

References panic.

◆ finalizePhysical()

Fault gem5::PowerISA::TLB::finalizePhysical	(	const RequestPtr &	req,
		ThreadContext *	tc,
		BaseMMU::Mode	mode ) const

overridevirtual

Do post-translation physical address finalization.

This method is used by some architectures that need post-translation massaging of physical addresses. For example, X86 uses this to remap physical addresses in the APIC range to a range of physical memory not normally available to real x86 implementations.

Parameters

req	Request to updated in-place.
tc	Thread context that created the request.
mode	Request type (read/write/execute).

Returns: A fault on failure, NoFault otherwise.

Implements gem5::BaseTLB.

◆ flushAll()

void gem5::PowerISA::TLB::flushAll ( )

overridevirtual

Remove all entries from the TLB.

Implements gem5::BaseTLB.

◆ getEntry()

PowerISA::PTE * gem5::PowerISA::TLB::getEntry ( unsigned ) const

◆ getsize()

int gem5::PowerISA::TLB::getsize ( ) const

inline

Definition at line 127 of file tlb.hh.

References size.

◆ index()

PowerISA::PTE & gem5::TLB::index ( bool advance = true )

Definition at line 254 of file tlb.cc.

◆ insert()

void gem5::PowerISA::TLB::insert	(	Addr	vaddr,
		PowerISA::PTE &	pte )

◆ insertAt()

void gem5::TLB::insertAt	(	PowerISA::PTE &	pte,
		unsigned	Index,
		int	_smallPages )

Definition at line 154 of file tlb.cc.

References gem5::ArmISA::i, and warn.

◆ lookup()

PowerISA::PTE * gem5::TLB::lookup	(	Addr	vpn,
		uint8_t	asn ) const

protected

Definition at line 73 of file tlb.cc.

References gem5::PowerISA::PTE::asid, DPRINTF, gem5::PowerISA::PTE::G, gem5::ArmISA::i, gem5::MipsISA::index, gem5::PowerISA::PTE::Mask, gem5::PowerISA::PTE::PFN1, and gem5::PowerISA::PTE::VPN.

◆ nextnlu()

void gem5::PowerISA::TLB::nextnlu ( )

inlineprotected

Definition at line 105 of file tlb.hh.

References nlu, and size.

◆ probeEntry()

int gem5::PowerISA::TLB::probeEntry	(	Addr	vpn,
		uint8_t	) const

◆ serialize()

void gem5::PowerISA::TLB::serialize ( CheckpointOut & cp ) const

overridevirtual

Serialize an object.

Output an object's state into the current checkpoint section.

Parameters

cp	Checkpoint state

Reimplemented from gem5::SimObject.

◆ takeOverFrom()

void gem5::PowerISA::TLB::takeOverFrom ( BaseTLB * otlb )

inlineoverridevirtual

Take over from an old tlb context.

Implements gem5::BaseTLB.

Definition at line 119 of file tlb.hh.

◆ translateAtomic()

Fault gem5::PowerISA::TLB::translateAtomic	(	const RequestPtr &	req,
		ThreadContext *	tc,
		BaseMMU::Mode	mode )

overridevirtual

Implements gem5::BaseTLB.

◆ translateData()

Fault gem5::PowerISA::TLB::translateData	(	const RequestPtr &	req,
		ThreadContext *	tc,
		bool	write )

◆ translateFunctional()

Fault gem5::PowerISA::TLB::translateFunctional	(	const RequestPtr &	req,
		ThreadContext *	tc,
		BaseMMU::Mode	mode )

overridevirtual

Reimplemented from gem5::BaseTLB.

◆ translateInst()

Fault gem5::PowerISA::TLB::translateInst	(	const RequestPtr &	req,
		ThreadContext *	tc )

◆ translateTiming()

void gem5::PowerISA::TLB::translateTiming	(	const RequestPtr &	req,
		ThreadContext *	tc,
		BaseMMU::Translation *	translation,
		BaseMMU::Mode	mode )

overridevirtual

Implements gem5::BaseTLB.

◆ unserialize()

void gem5::PowerISA::TLB::unserialize ( CheckpointIn & cp )

overridevirtual

Unserialize an object.

Read an object's state from the current checkpoint section.

Parameters

cp	Checkpoint state

Reimplemented from gem5::SimObject.

◆ validVirtualAddress()

static bool gem5::PowerISA::TLB::validVirtualAddress ( Addr vaddr )

static

Member Data Documentation

◆ lookupTable

PageTable gem5::PowerISA::TLB::lookupTable

protected

Definition at line 98 of file tlb.hh.

◆ nlu

int gem5::PowerISA::TLB::nlu

protected

Definition at line 102 of file tlb.hh.

Referenced by nextnlu().

◆ size

int gem5::PowerISA::TLB::size

protected

Definition at line 101 of file tlb.hh.

Referenced by getsize(), and nextnlu().

◆ smallPages

int gem5::PowerISA::TLB::smallPages

Definition at line 124 of file tlb.hh.

◆ table

PowerISA::PTE* gem5::PowerISA::TLB::table

protected

Definition at line 100 of file tlb.hh.

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

arch/power/tlb.hh
arch/mips/tlb.cc
arch/power/tlb.cc

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Types

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ PageTable

◆ Params

Constructor & Destructor Documentation

◆ TLB()

◆ ~TLB()

Member Function Documentation

◆ checkCacheability()

◆ demapPage()

◆ finalizePhysical()

◆ flushAll()

◆ getEntry()

◆ getsize()

◆ index()

◆ insert()

◆ insertAt()

◆ lookup()

◆ nextnlu()

◆ probeEntry()

◆ serialize()

◆ takeOverFrom()

◆ translateAtomic()

◆ translateData()

◆ translateFunctional()

◆ translateInst()

◆ translateTiming()

◆ unserialize()

◆ validVirtualAddress()

Member Data Documentation

◆ lookupTable

◆ nlu

◆ size

◆ smallPages

◆ table