#include <pagetable.hh>

Inheritance diagram for gem5::ArmISA::TlbEntry:

Public Types
enum class	MemoryType : std::uint8_t { StronglyOrdered , Device , Normal }

using	LookupLevel = enums::ArmLookupLevel

using	KeyType = TLBTypes::KeyType

using	IndexingPolicy = TLBIndexingPolicy

Public Member Functions
	TlbEntry (Addr _asn, Addr _vaddr, Addr _paddr, bool uncacheable, bool read_only)

	TlbEntry ()

	TlbEntry (const TlbEntry &rhs)=default

TlbEntry &	operator= (TlbEntry rhs)

void	swap (TlbEntry &rhs)

void	invalidate ()
	Need for compliance with the AssociativeCache interface.

void	insert (const KeyType &key)
	Need for compliance with the AssociativeCache interface.

bool	isValid () const
	Need for compliance with the AssociativeCache interface.

void	updateVaddr (Addr new_vaddr)

Addr	pageStart () const

bool	matchAddress (const KeyType &key) const

bool	match (const KeyType &key) const

bool	checkRegime (TranslationRegime target_regime) const

Addr	pAddr (Addr va) const

void	updateAttributes ()

void	setAttributes (bool lpae)

std::string	print () const override
	Prints relevant information about this entry.

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

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

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

virtual	~ReplaceableEntry ()=default

virtual void	setPosition (const uint32_t set, const uint32_t way)
	Set both the set and way.

uint32_t	getSet () const
	Get set number.

uint32_t	getWay () const
	Get way number.

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 Attributes
Addr	pfn

Addr	size

Addr	vpn

uint64_t	attributes

LookupLevel	lookupLevel

uint16_t	asid

vmid_t	vmid

GrainSize	tg

uint8_t	N

uint8_t	innerAttrs

uint8_t	outerAttrs

uint8_t	ap

uint8_t	hap

DomainType	domain

MemoryType	mtype

bool	longDescFormat

bool	global

bool	valid

bool	ns

SecurityState	ss

PASpace	ipaSpace

TranslationRegime	regime

TypeTLB	type

bool	partial

bool	nonCacheable

bool	shareable

bool	outerShareable

bool	xn

bool	pxn

bool	xs

Public Attributes inherited from gem5::ReplaceableEntry
std::shared_ptr< replacement_policy::ReplacementData >	replacementData
	Replacement data associated to this entry.

Additional Inherited Members
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.

Protected Attributes inherited from gem5::ReplaceableEntry
uint32_t	_set
	Set to which this entry belongs.

uint32_t	_way
	Way (relative position within the set) to which this entry belongs.

Detailed Description

Definition at line 232 of file pagetable.hh.

Member Typedef Documentation

◆ IndexingPolicy

using gem5::ArmISA::TlbEntry::IndexingPolicy = TLBIndexingPolicy

Definition at line 237 of file pagetable.hh.

◆ KeyType

using gem5::ArmISA::TlbEntry::KeyType = TLBTypes::KeyType

Definition at line 236 of file pagetable.hh.

◆ LookupLevel

using gem5::ArmISA::TlbEntry::LookupLevel = enums::ArmLookupLevel

Definition at line 235 of file pagetable.hh.

Member Enumeration Documentation

◆ MemoryType

enum class gem5::ArmISA::TlbEntry::MemoryType : std::uint8_t

strong

Enumerator
StronglyOrdered
Device
Normal

Definition at line 239 of file pagetable.hh.

Constructor & Destructor Documentation

◆ TlbEntry() [1/3]

gem5::ArmISA::TlbEntry::TlbEntry	(	Addr	_asn,
		Addr	_vaddr,
		Addr	_paddr,
		bool	uncacheable,
		bool	read_only
	)

inline

Definition at line 303 of file pagetable.hh.

References warn.

◆ TlbEntry() [2/3]

gem5::ArmISA::TlbEntry::TlbEntry ( )

inline

Definition at line 326 of file pagetable.hh.

◆ TlbEntry() [3/3]

gem5::ArmISA::TlbEntry::TlbEntry ( const TlbEntry & rhs )

default

Member Function Documentation

◆ checkRegime()

bool gem5::ArmISA::TlbEntry::checkRegime ( TranslationRegime target_regime ) const

inline

Definition at line 442 of file pagetable.hh.

References regime.

Referenced by match().

◆ insert()

void gem5::ArmISA::TlbEntry::insert ( const KeyType & key )

inline

Need for compliance with the AssociativeCache interface.

Definition at line 392 of file pagetable.hh.

◆ invalidate()

void gem5::ArmISA::TlbEntry::invalidate ( )

inline

Need for compliance with the AssociativeCache interface.

Definition at line 386 of file pagetable.hh.

References valid.

◆ isValid()

bool gem5::ArmISA::TlbEntry::isValid ( ) const

inline

Need for compliance with the AssociativeCache interface.

Definition at line 395 of file pagetable.hh.

References valid.

◆ match()

bool gem5::ArmISA::TlbEntry::match ( const KeyType & key ) const

inline

Definition at line 424 of file pagetable.hh.

References asid, gem5::ArmISA::TLBTypes::KeyType::asn, checkRegime(), global, gem5::ArmISA::TLBTypes::KeyType::ignoreAsn, match(), matchAddress(), gem5::ArmISA::TLBTypes::KeyType::ss, ss, gem5::ArmISA::TLBTypes::KeyType::targetRegime, gem5::ArmISA::useVMID(), valid, gem5::ArmISA::TLBTypes::KeyType::vmid, and vmid.

Referenced by match().

◆ matchAddress()

bool gem5::ArmISA::TlbEntry::matchAddress ( const KeyType & key ) const

inline

Definition at line 410 of file pagetable.hh.

References N, gem5::ArmISA::TLBTypes::KeyType::size, size, gem5::ArmISA::TLBTypes::KeyType::va, and vpn.

Referenced by match().

◆ operator=()

TlbEntry & gem5::ArmISA::TlbEntry::operator= ( TlbEntry rhs )

inline

Definition at line 344 of file pagetable.hh.

References swap().

◆ pAddr()

Addr gem5::ArmISA::TlbEntry::pAddr ( Addr va ) const

inline

Definition at line 448 of file pagetable.hh.

References N, pfn, size, and gem5::ArmISA::va.

Referenced by gem5::ArmISA::TLB::lookup(), gem5::ArmISA::Stage2LookUp::Stage2LookUp(), and gem5::ArmISA::MMU::translateFunctional().

◆ pageStart()

Addr gem5::ArmISA::TlbEntry::pageStart ( ) const

inline

Definition at line 404 of file pagetable.hh.

References gem5::ArmISA::PageShift, and pfn.

◆ print()

std::string gem5::ArmISA::TlbEntry::print ( ) const

inlineoverridevirtual

Prints relevant information about this entry.

Returns: A string containg the contents of this entry.

Reimplemented from gem5::ReplaceableEntry.

Definition at line 503 of file pagetable.hh.

References ap, asid, gem5::csprintf(), global, N, ns, pfn, regime, gem5::ArmISA::regimeToStr(), size, ss, vmid, vpn, and xs.

◆ serialize()

void gem5::ArmISA::TlbEntry::serialize ( CheckpointOut & cp ) const

inlineoverridevirtual

Serialize an object.

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

Parameters

cp	Checkpoint state

Implements gem5::Serializable.

Definition at line 512 of file pagetable.hh.

References ap, asid, attributes, domain, global, hap, innerAttrs, longDescFormat, lookupLevel, mtype, N, nonCacheable, ns, outerAttrs, outerShareable, gem5::paramOut(), pfn, pxn, SERIALIZE_ENUM, SERIALIZE_SCALAR, shareable, size, ss, type, valid, vmid, vpn, and xn.

◆ setAttributes()

void gem5::ArmISA::TlbEntry::setAttributes ( bool lpae )

inline

Definition at line 496 of file pagetable.hh.

References attributes, gem5::ArmISA::lpae, and updateAttributes().

Referenced by gem5::ArmISA::MMU::translateMmuOff().

◆ swap()

void gem5::ArmISA::TlbEntry::swap ( TlbEntry & rhs )

inline

Definition at line 351 of file pagetable.hh.

References ap, asid, attributes, domain, global, hap, innerAttrs, longDescFormat, lookupLevel, mtype, N, nonCacheable, ns, outerAttrs, outerShareable, partial, pfn, pxn, regime, shareable, size, ss, tg, type, valid, vmid, vpn, xn, and xs.

Referenced by operator=().

◆ unserialize()

void gem5::ArmISA::TlbEntry::unserialize ( CheckpointIn & cp )

inlineoverridevirtual

Unserialize an object.

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

Parameters

cp	Checkpoint state

Implements gem5::Serializable.

Definition at line 542 of file pagetable.hh.

References ap, asid, attributes, domain, global, hap, innerAttrs, longDescFormat, lookupLevel, mtype, N, nonCacheable, ns, outerAttrs, outerShareable, gem5::paramIn(), pfn, pxn, shareable, size, ss, type, UNSERIALIZE_ENUM, UNSERIALIZE_SCALAR, valid, vmid, vpn, and xn.

◆ updateAttributes()

void gem5::ArmISA::TlbEntry::updateAttributes ( )

inline

Formatting for Physical Address Register (PAR) Only including lower bits (TLB info here) PAR (32-bit format): PA [31:12] LPAE [11] (Large Physical Address Extension) TLB info [10:1] NOS [10] (Not Outer Sharable) NS [9] (Non-Secure) – [8] (Implementation Defined) SH [7] (Sharable) Inner[6:4](Inner memory attributes) Outer[3:2](Outer memory attributes) SS [1] (SuperSection) F [0] (Fault, Fault Status in [6:1] if faulted)

Definition at line 454 of file pagetable.hh.

References attributes, innerAttrs, gem5::ArmISA::mask, ns, outerAttrs, outerShareable, and shareable.

Referenced by gem5::ArmISA::Stage2LookUp::mergeTe(), and setAttributes().