#include <tlb.hh>

Inheritance diagram for X86ISA::TLB:

Public Types
typedef X86TLBParams	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)

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

TlbEntry *	lookup (Addr va, bool update_lru=true)

void	setConfigAddress (uint32_t addr)

Walker *	getWalker ()

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

void	flushNonGlobal ()

void	demapPage (Addr va, uint64_t asn) override

void	evictLRU ()

uint64_t	nextSeq ()

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

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

Fault	translateFunctional (RequestPtr req, ThreadContext *tc, Mode mode)
	Stub function for compilation support of CheckerCPU. More...

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

TlbEntry *	insert (Addr vpn, TlbEntry &entry)

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

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

BaseMasterPort *	getMasterPort () override
	Get the table walker master port. More...

Public Member Functions inherited from BaseTLB
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	regStats ()
	Register statistics for this object. More...

virtual void	resetStats ()
	Reset statistics associated with this object. 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 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...

Protected Types
typedef std::list< TlbEntry * >	EntryList

Protected Member Functions
EntryList::iterator	lookupIt (Addr va, bool update_lru=true)

Fault	translateInt (RequestPtr req, ThreadContext *tc)

Fault	translate (RequestPtr req, ThreadContext tc, Translation translation, Mode mode, bool &delayedResponse, bool timing)

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
uint32_t	configAddress

Walker *	walker

uint32_t	size

std::vector< TlbEntry >	tlb

EntryList	freeList

TlbEntryTrie	trie

uint64_t	lruSeq

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...

Friends
class	Walker

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

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

static void	unserializeGlobals (CheckpointIn &cp)

Static Public Attributes inherited from Serializable
static int	ckptCount = 0

static int	ckptMaxCount = 0

static int	ckptPrevCount = -1

Detailed Description

Definition at line 58 of file tlb.hh.

Member Typedef Documentation

typedef std::list<TlbEntry *> X86ISA::TLB::EntryList

protected

Definition at line 63 of file tlb.hh.

typedef X86TLBParams X86ISA::TLB::Params

Definition at line 69 of file tlb.hh.

Constructor & Destructor Documentation

X86ISA::TLB::TLB ( const Params * p )

Definition at line 62 of file tlb.cc.

References fatal, freeList, X86ISA::Walker::setTLB(), size, tlb, walker, and X86ISA::x.

Member Function Documentation

void X86ISA::TLB::demapPage	(	Addr	va,
		uint64_t	asn
	)

overridevirtual

Implements BaseTLB.

Definition at line 162 of file tlb.cc.

References freeList, Trie< Key, Value >::lookup(), Trie< Key, Value >::remove(), X86ISA::TlbEntry(), and trie.

void X86ISA::TLB::evictLRU ( )

Definition at line 79 of file tlb.cc.

References freeList, ArmISA::i, lruSeq, Trie< Key, Value >::remove(), size, tlb, trie, and X86ISA::trieHandle.

Referenced by insert().

Fault X86ISA::TLB::finalizePhysical	(	RequestPtr	req,
		ThreadContext *	tc,
		Mode	mode
	)		const

Do post-translation physical address finalization.

Some addresses, for example requests going to the APIC, need post-translation updates. Such physical addresses are remapped into a "magic" part of the physical address space by this method.

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.

Definition at line 227 of file tlb.cc.

References AddrRange::contains(), ThreadContext::contextId(), FullSystem, Request::GENERIC_IPR, Request::getPaddr(), GenericISA::iprAddressPseudoInst(), X86ISA::MISCREG_APIC_BASE, Request::MMAPPED_IPR, NoFault, X86ISA::PageBytes, ThreadContext::readMiscRegNoEffect(), Request::setFlags(), Request::setPaddr(), AddrRange::start(), Request::STRICT_ORDER, Request::UNCACHEABLE, and X86ISA::x86LocalAPICAddress().

Referenced by translate().

void X86ISA::TLB::flushAll ( )

overridevirtual

Remove all entries from the TLB.

Implements BaseTLB.

Definition at line 130 of file tlb.cc.

References DPRINTF, freeList, ArmISA::i, Trie< Key, Value >::remove(), size, tlb, trie, and X86ISA::trieHandle.

void X86ISA::TLB::flushNonGlobal ( )

Definition at line 149 of file tlb.cc.

References DPRINTF, freeList, X86ISA::global, ArmISA::i, Trie< Key, Value >::remove(), size, tlb, trie, and X86ISA::trieHandle.

BaseMasterPort * X86ISA::TLB::getMasterPort ( )

overridevirtual

Get the table walker master port.

This is used for migrating port connections during a CPU takeOverFrom() call. For architectures that do not have a table walker, NULL is returned, hence the use of a pointer rather than a reference. For X86 this method will always return a valid port pointer.