#include <tlb.hh>

Inheritance diagram for RiscvISA::TLB:

Public Types
typedef RiscvTLBParams	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

RiscvISA::PTE *	getEntry (unsigned) const

virtual	~TLB ()

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

int	getsize () const

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

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

void	insertAt (RiscvISA::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
	Register statistics for this object. More...

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)
	Function stub for CheckerCPU compilation issues. More...

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

Public Member Functions inherited from BaseTLB
virtual BaseMasterPort *	getMasterPort ()
	Get the table walker master 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	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...

Static Public Member Functions
static bool	validVirtualAddress (Addr vaddr)

static Fault	checkCacheability (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 ()

RiscvISA::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

RiscvISA::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 (RequestPtr req, ThreadContext *tc)

Fault	translateData (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 56 of file tlb.hh.

Member Typedef Documentation

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

protected

Definition at line 59 of file tlb.hh.

typedef RiscvTLBParams RiscvISA::TLB::Params

Definition at line 82 of file tlb.hh.

Constructor & Destructor Documentation

TLB::TLB ( const Params * p )

Definition at line 64 of file tlb.cc.

References size, smallPages, and table.

TLB::~TLB ( )

virtual

Definition at line 72 of file tlb.cc.

References table.

Member Function Documentation

Fault TLB::checkCacheability ( RequestPtr & req )

inlinestatic

Definition at line 146 of file tlb.cc.

References Request::getVaddr(), NoFault, Request::setFlags(), Request::STRICT_ORDER, and Request::UNCACHEABLE.

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

inlineoverridevirtual

Implements BaseTLB.

Definition at line 98 of file tlb.hh.

References panic.

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

Definition at line 351 of file tlb.cc.

References NoFault.

void TLB::flushAll ( )

overridevirtual

Remove all entries from the TLB.

Implements BaseTLB.

Definition at line 193 of file tlb.cc.

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

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

Definition at line 110 of file tlb.cc.

References size, and table.

int RiscvISA::TLB::getsize ( ) const

inline

Definition at line 92 of file tlb.hh.

References size.

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

Definition at line 358 of file tlb.cc.

References nextnlu(), nlu, and table.

Referenced by lookup(), and probeEntry().

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

Definition at line 187 of file tlb.cc.

References fatal.

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

Definition at line 159 of file tlb.cc.

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

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

protected

Definition at line 80 of file tlb.cc.

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

void RiscvISA::TLB::nextnlu ( )

inlineprotected

Definition at line 66 of file tlb.hh.

References nlu, and size.

Referenced by index().

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

Definition at line 118 of file tlb.cc.

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

void TLB::regStats ( )

overridevirtual

Register statistics for this object.

Reimplemented from SimObject.

Definition at line 229 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, SimObject::regStats(), write_accesses, write_hits, and write_misses.

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 202 of file tlb.cc.

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

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

inlineoverridevirtual

Take over from an old tlb context.

Implements BaseTLB.

Definition at line 89 of file tlb.hh.

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

Definition at line 327 of file tlb.cc.

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

Referenced by translateTiming().

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

private

Definition at line 301 of file tlb.cc.

References FullSystem, ThreadContext::getProcessPtr(), Request::getSize(), Request::getVaddr(), NoFault, RiscvISA::p, panic, Process::pTable, and PageTableBase::translate().

Referenced by translateAtomic().

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

Function stub for CheckerCPU compilation issues.

RISC-V does not support the Checker model at the moment.

Definition at line 344 of file tlb.cc.

References NoFault, and panic.

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

private

Definition at line 286 of file tlb.cc.

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

Referenced by translateAtomic().

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

Definition at line 336 of file tlb.cc.

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

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 214 of file tlb.cc.

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

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

static

Member Data Documentation

Stats::Formula RiscvISA::TLB::accesses

protected

Definition at line 79 of file tlb.hh.

Referenced by regStats().

Stats::Formula RiscvISA::TLB::hits

protected

Definition at line 77 of file tlb.hh.

Referenced by regStats().

PageTable RiscvISA::TLB::lookupTable

protected

Definition at line 60 of file tlb.hh.

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

Stats::Formula RiscvISA::TLB::misses

protected

Definition at line 78 of file tlb.hh.

Referenced by regStats().

int RiscvISA::TLB::nlu

protected

Definition at line 64 of file tlb.hh.

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

Stats::Scalar RiscvISA::TLB::read_accesses

mutableprotected

Definition at line 72 of file tlb.hh.

Referenced by regStats().

Stats::Scalar RiscvISA::TLB::read_acv

mutableprotected

Definition at line 71 of file tlb.hh.

Stats::Scalar RiscvISA::TLB::read_hits

mutableprotected

Definition at line 69 of file tlb.hh.

Referenced by regStats().

Stats::Scalar RiscvISA::TLB::read_misses

mutableprotected

Definition at line 70 of file tlb.hh.

Referenced by regStats().

int RiscvISA::TLB::size

protected

Definition at line 63 of file tlb.hh.

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

int RiscvISA::TLB::smallPages

Definition at line 91 of file tlb.hh.

Referenced by insertAt(), and TLB().

RiscvISA::PTE* RiscvISA::TLB::table

protected

Definition at line 62 of file tlb.hh.

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

Stats::Scalar RiscvISA::TLB::write_accesses

mutableprotected

Definition at line 76 of file tlb.hh.

Referenced by regStats().

Stats::Scalar RiscvISA::TLB::write_acv

mutableprotected

Definition at line 75 of file tlb.hh.

Stats::Scalar RiscvISA::TLB::write_hits

mutableprotected

Definition at line 73 of file tlb.hh.

Referenced by regStats().

Stats::Scalar RiscvISA::TLB::write_misses

mutableprotected

Definition at line 74 of file tlb.hh.

Referenced by regStats().

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

arch/riscv/tlb.hh
arch/riscv/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

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation