#include <tlb.hh>

Inheritance diagram for MipsISA::TLB:

Public Types
typedef MipsTLBParams	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)

int	probeEntry (Addr vpn, uint8_t) const

MipsISA::PTE *	getEntry (unsigned) const

virtual	~TLB ()

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

int	getsize () const

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

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

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

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

void	demapPage (Addr vaddr, uint64_t asn) override

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

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

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

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

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

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

Public Member Functions inherited from BaseTLB
virtual Fault	translateFunctional (const RequestPtr &req, ThreadContext *tc, Mode mode)

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 *_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...

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
	EventManager (EventManager &em)

	EventManager (EventManager *em)

	EventManager (EventQueue *eq)

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)

void	setCurTick (Tick newVal)

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 ()=delete

	Group (const Group &)=delete

Group &	operator= (const Group &)=delete

	Group (Group parent, const char name=nullptr)
	Construct a new statistics group. More...

virtual	~Group ()

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...

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 ()
	Get the fully-qualified name of the active section. More...

static void	serializeAll (const std::string &cpt_dir)

static void	unserializeGlobals (CheckpointIn &cp)

Public Attributes
int	smallPages

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

Protected Member Functions
void	nextnlu ()

MipsISA::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

MipsISA::PTE *	table

int	size

int	nlu

Stats::Scalar	read_hits

Stats::Scalar	read_misses

Stats::Scalar	read_acv

Stats::Scalar	read_accesses

Stats::Scalar	write_hits

Stats::Scalar	write_misses

Stats::Scalar	write_acv

Stats::Scalar	write_accesses

Stats::Formula	hits

Stats::Formula	misses

Stats::Formula	accesses

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

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

Additional Inherited Members
Static Public Attributes inherited from Serializable
static int	ckptCount = 0

static int	ckptMaxCount = 0

static int	ckptPrevCount = -1

Detailed Description

Definition at line 57 of file tlb.hh.

Member Typedef Documentation

◆ PageTable

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

protected

Definition at line 60 of file tlb.hh.

◆ Params

typedef MipsTLBParams MipsISA::TLB::Params

Definition at line 83 of file tlb.hh.

Constructor & Destructor Documentation

◆ TLB()

TLB::TLB ( const Params * p )

Definition at line 63 of file tlb.cc.

References size, smallPages, and table.

Referenced by index().

◆ ~TLB()

TLB::~TLB ( )

virtual

Definition at line 71 of file tlb.cc.

References table.

Member Function Documentation

◆ checkCacheability()

Fault TLB::checkCacheability ( const RequestPtr & req )

inlinestatic

Definition at line 145 of file tlb.cc.

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

Referenced by demapPage().

◆ demapPage()

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

inlineoverridevirtual

Implements BaseTLB.

Definition at line 99 of file tlb.hh.

References checkCacheability(), finalizePhysical(), MipsISA::mode, panic, regStats(), serialize(), translateAtomic(), translateData(), translateInst(), translateTiming(), unserialize(), and validVirtualAddress().

◆ 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 332 of file tlb.cc.

References NoFault.

Referenced by demapPage().

◆ flushAll()

void TLB::flushAll ( )

overridevirtual

Remove all entries from the TLB.

Implements BaseTLB.

Definition at line 192 of file tlb.cc.

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

Referenced by getsize().

◆ getEntry()

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

Definition at line 109 of file tlb.cc.

References size, and table.

◆ getsize()

int MipsISA::TLB::getsize ( ) const

inline

Definition at line 93 of file tlb.hh.

References flushAll(), index(), insert(), insertAt(), size, and MipsISA::vaddr.

◆ index()

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

Definition at line 340 of file tlb.cc.

References nextnlu(), nlu, table, and TLB().

Referenced by getsize(), lookup(), and probeEntry().

◆ insert()

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

Definition at line 186 of file tlb.cc.

References fatal.

Referenced by getsize().

◆ insertAt()

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

Definition at line 158 of file tlb.cc.

References MipsISA::PTE::asid, MipsISA::PTE::C0, MipsISA::PTE::C1, MipsISA::PTE::D0, MipsISA::PTE::D1, DPRINTF, MipsISA::PTE::G, MipsISA::i, lookupTable, MipsISA::PTE::Mask, MipsISA::PTE::PFN0, MipsISA::PTE::PFN1, size, smallPages, table, MipsISA::PTE::V0, MipsISA::PTE::V1, MipsISA::PTE::VPN, and warn.

Referenced by getsize().

◆ lookup()

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

protected

Definition at line 79 of file tlb.cc.

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

Referenced by nextnlu().

◆ nextnlu()

void MipsISA::TLB::nextnlu ( )

inlineprotected

Definition at line 67 of file tlb.hh.

References lookup().

Referenced by index().

◆ probeEntry()

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

Definition at line 117 of file tlb.cc.

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

◆ regStats()

void TLB::regStats ( )

overridevirtual

Callback to set stat parameters.

This callback is typically used for complex stats (e.g., distributions) that need parameters in addition to a name and a description. Stat names and descriptions should typically be set from the constructor usingo from the constructor using the ADD_STAT macro.

Reimplemented from Stats::Group.

Definition at line 228 of file tlb.cc.

References accesses, Stats::DataWrap< Derived, InfoProxyType >::desc(), hits, misses, SimObject::name(), Stats::DataWrap< Derived, InfoProxyType >::name(), read_accesses, read_hits, read_misses, Stats::Group::regStats(), write_accesses, write_hits, and write_misses.

Referenced by demapPage().

◆ 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 201 of file tlb.cc.

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

Referenced by demapPage().

◆ takeOverFrom()

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

inlineoverridevirtual

Take over from an old tlb context.

Implements BaseTLB.

Definition at line 90 of file tlb.hh.

◆ translateAtomic()

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

overridevirtual

Implements BaseTLB.

Definition at line 315 of file tlb.cc.

References BaseTLB::Execute, translateData(), translateInst(), and BaseTLB::Write.

Referenced by demapPage(), and translateTiming().

◆ translateData()

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

private

Definition at line 300 of file tlb.cc.

References FullSystem, ThreadContext::getProcessPtr(), NoFault, MipsISA::p, panic, Process::pTable, and EmulationPageTable::translate().

Referenced by demapPage(), and translateAtomic().

◆ translateInst()

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

private

Definition at line 285 of file tlb.cc.

References FullSystem, ThreadContext::getProcessPtr(), NoFault, MipsISA::p, panic, Process::pTable, and EmulationPageTable::translate().

Referenced by demapPage(), and translateAtomic().

◆ translateTiming()

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

overridevirtual

Implements BaseTLB.

Definition at line 324 of file tlb.cc.

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

Referenced by demapPage().

◆ 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 213 of file tlb.cc.

References csprintf(), MipsISA::i, lookupTable, nlu, size, table, MipsISA::PTE::unserialize(), and UNSERIALIZE_SCALAR.

Referenced by demapPage().

◆ validVirtualAddress()

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

static

Referenced by demapPage().

Member Data Documentation

◆ accesses

Stats::Formula MipsISA::TLB::accesses

protected

Definition at line 80 of file tlb.hh.

Referenced by regStats().

◆ hits

Stats::Formula MipsISA::TLB::hits

protected

Definition at line 78 of file tlb.hh.

Referenced by regStats().

◆ lookupTable

PageTable MipsISA::TLB::lookupTable

protected

Definition at line 61 of file tlb.hh.

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

◆ misses

Stats::Formula MipsISA::TLB::misses

protected

Definition at line 79 of file tlb.hh.

Referenced by regStats().

◆ nlu

int MipsISA::TLB::nlu

protected

Definition at line 65 of file tlb.hh.

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

◆ read_accesses

Stats::Scalar MipsISA::TLB::read_accesses

mutableprotected

Definition at line 73 of file tlb.hh.

Referenced by regStats().

◆ read_acv

Stats::Scalar MipsISA::TLB::read_acv

mutableprotected

Definition at line 72 of file tlb.hh.

◆ read_hits

Stats::Scalar MipsISA::TLB::read_hits

mutableprotected

Definition at line 70 of file tlb.hh.

Referenced by regStats().

◆ read_misses

Stats::Scalar MipsISA::TLB::read_misses

mutableprotected

Definition at line 71 of file tlb.hh.

Referenced by regStats().

◆ size

int MipsISA::TLB::size

protected

Definition at line 64 of file tlb.hh.

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

◆ smallPages

int MipsISA::TLB::smallPages

Definition at line 92 of file tlb.hh.

Referenced by insertAt(), and TLB().

◆ table

MipsISA::PTE* MipsISA::TLB::table

protected

Definition at line 63 of file tlb.hh.

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

◆ write_accesses

Stats::Scalar MipsISA::TLB::write_accesses

mutableprotected

Definition at line 77 of file tlb.hh.

Referenced by regStats().

◆ write_acv

Stats::Scalar MipsISA::TLB::write_acv

mutableprotected

Definition at line 76 of file tlb.hh.

◆ write_hits

Stats::Scalar MipsISA::TLB::write_hits

mutableprotected

Definition at line 74 of file tlb.hh.

Referenced by regStats().

◆ write_misses

Stats::Scalar MipsISA::TLB::write_misses

mutableprotected

Definition at line 75 of file tlb.hh.

Referenced by regStats().

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

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

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Types

Protected Member Functions

Protected Attributes

Private Member Functions

Additional Inherited Members

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()

◆ regStats()

◆ serialize()

◆ takeOverFrom()

◆ translateAtomic()

◆ translateData()

◆ translateInst()

◆ translateTiming()

◆ unserialize()

◆ validVirtualAddress()

Member Data Documentation

◆ accesses

◆ hits

◆ lookupTable

◆ misses

◆ nlu

◆ read_accesses

◆ read_acv

◆ read_hits

◆ read_misses

◆ size

◆ smallPages

◆ table

◆ write_accesses

◆ write_acv

◆ write_hits

◆ write_misses