#include <tlb.hh>

Inheritance diagram for PowerISA::TLB:

Public Types
typedef PowerTLBParams	Params

Public Types inherited from BaseTLB
enum	Mode { Read, Write, Execute }

Public Types inherited from 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. More...

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. More...

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, Mode mode) override

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

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

Fault	finalizePhysical (const RequestPtr &req, ThreadContext *tc, Mode mode) const override
	Do post-translation physical address finalization. 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 BaseTLB
virtual Port *	getTableWalkerPort ()
	Get the table walker port if present. More...

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

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

	SimObject (const Params &p)

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...

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...

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

	Group ()=delete

	Group (const Group &)=delete

Group &	operator= (const Group &)=delete

Static Public Member Functions
static bool	validVirtualAddress (Addr vaddr)

static Fault	checkCacheability (const RequestPtr &req)

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)

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 BaseTLB
	BaseTLB (const Params &p)

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...

Protected Attributes
PageTable	lookupTable

PowerISA::PTE *	table

int	size

int	nlu

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...

Detailed Description

Definition at line 93 of file tlb.hh.

Member Typedef Documentation

◆ PageTable

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

protected

Definition at line 96 of file tlb.hh.

◆ Params

typedef PowerTLBParams PowerISA::TLB::Params

Definition at line 114 of file tlb.hh.

Constructor & Destructor Documentation

◆ TLB()

TLB::TLB ( const Params & p )

Definition at line 60 of file tlb.cc.

References size, smallPages, and table.

◆ ~TLB()

TLB::~TLB ( )

virtual

Definition at line 67 of file tlb.cc.

References table.

Member Function Documentation

◆ checkCacheability()

Fault TLB::checkCacheability ( const RequestPtr & req )

inlinestatic

Definition at line 140 of file tlb.cc.

References NoFault, Request::STRICT_ORDER, and Request::UNCACHEABLE.

◆ demapPage()

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

inlineoverridevirtual

Implements BaseTLB.

Definition at line 137 of file tlb.hh.

References panic.

◆ finalizePhysical()

Fault TLB::finalizePhysical	(	const RequestPtr &	req,
		ThreadContext *	tc,
		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 BaseTLB.

Definition at line 264 of file tlb.cc.

References NoFault.

◆ flushAll()

void TLB::flushAll ( )

overridevirtual

Remove all entries from the TLB.

Implements BaseTLB.

Definition at line 182 of file tlb.cc.

References DPRINTF, lookupTable, nlu, size, and table.

◆ getEntry()

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

Definition at line 104 of file tlb.cc.

References size, and table.

◆ getsize()

int PowerISA::TLB::getsize ( ) const

inline

Definition at line 126 of file tlb.hh.

References size.

◆ index()

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

Definition at line 271 of file tlb.cc.

References nextnlu(), nlu, and table.

Referenced by lookup(), and probeEntry().

◆ insert()

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

Definition at line 176 of file tlb.cc.

References fatal.

◆ insertAt()

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

Definition at line 152 of file tlb.cc.

References ArmISA::i, lookupTable, size, smallPages, table, and warn.

◆ lookup()

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

protected

Definition at line 75 of file tlb.cc.

References PowerISA::PTE::asid, DPRINTF, PowerISA::PTE::G, ArmISA::i, index(), lookupTable, PowerISA::PTE::Mask, PowerISA::PTE::PFN1, table, and PowerISA::PTE::VPN.

◆ nextnlu()

void PowerISA::TLB::nextnlu ( )

inlineprotected

Definition at line 104 of file tlb.hh.

References nlu, and size.

Referenced by index().

◆ probeEntry()

int TLB::probeEntry	(	Addr	vpn,
		uint8_t	asn
	)		const

Definition at line 112 of file tlb.cc.

References PowerISA::PTE::asid, DPRINTF, PowerISA::PTE::G, ArmISA::i, index(), lookupTable, PowerISA::PTE::Mask, Loader::Power, table, and PowerISA::PTE::VPN.

◆ serialize()

void TLB::serialize ( CheckpointOut & cp ) const

overridevirtual

Serialize an object.

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

Parameters

cp	Checkpoint state

Implements Serializable.

Definition at line 191 of file tlb.cc.

References csprintf(), ArmISA::i, nlu, PowerISA::PTE::serialize(), SERIALIZE_SCALAR, size, and table.

◆ takeOverFrom()

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

inlineoverridevirtual

Take over from an old tlb context.

Implements BaseTLB.

Definition at line 118 of file tlb.hh.

◆ translateAtomic()

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

overridevirtual

Implements BaseTLB.

Definition at line 236 of file tlb.cc.

References BaseTLB::Execute, FullSystem, ArmISA::mode, panic_if, translateData(), translateInst(), and BaseTLB::Write.

Referenced by translateTiming().

◆ translateData()

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

Definition at line 230 of file tlb.cc.

References ThreadContext::getProcessPtr(), Process::pTable, and EmulationPageTable::translate().

Referenced by translateAtomic().

◆ translateFunctional()

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

overridevirtual

Reimplemented from BaseTLB.

Definition at line 248 of file tlb.cc.

References FullSystem, ThreadContext::getProcessPtr(), panic_if, Process::pTable, and EmulationPageTable::translate().

◆ translateInst()

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

Definition at line 217 of file tlb.cc.

References DPRINTF, ThreadContext::getProcessPtr(), Process::pTable, and EmulationPageTable::translate().

Referenced by translateAtomic().

◆ translateTiming()

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

overridevirtual

Implements BaseTLB.

Definition at line 256 of file tlb.cc.

References BaseTLB::Translation::finish(), ArmISA::mode, and translateAtomic().

◆ unserialize()

void TLB::unserialize ( CheckpointIn & cp )

overridevirtual

Unserialize an object.

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

Parameters

cp	Checkpoint state

Implements Serializable.

Definition at line 203 of file tlb.cc.

References csprintf(), ArmISA::i, lookupTable, nlu, size, table, and UNSERIALIZE_SCALAR.

◆ validVirtualAddress()

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

static

Member Data Documentation

◆ lookupTable

PageTable PowerISA::TLB::lookupTable

protected

Definition at line 97 of file tlb.hh.

Referenced by flushAll(), insertAt(), lookup(), probeEntry(), and unserialize().

◆ nlu

int PowerISA::TLB::nlu

protected

Definition at line 101 of file tlb.hh.

Referenced by flushAll(), index(), nextnlu(), serialize(), and unserialize().

◆ size

int PowerISA::TLB::size

protected

Definition at line 100 of file tlb.hh.

Referenced by flushAll(), getEntry(), getsize(), insertAt(), nextnlu(), serialize(), TLB(), and unserialize().

◆ smallPages

int PowerISA::TLB::smallPages

Definition at line 123 of file tlb.hh.

Referenced by insertAt(), and TLB().

◆ table

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

protected

Definition at line 99 of file tlb.hh.

Referenced by flushAll(), getEntry(), index(), insertAt(), lookup(), probeEntry(), serialize(), TLB(), unserialize(), and ~TLB().

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

arch/power/tlb.hh
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