#include <tlb.hh>

Inheritance diagram for AlphaISA::TLB:

Public Types
typedef AlphaTLBParams	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...

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

int	getsize () const

TlbEntry &	index (bool advance=true)

void	insert (Addr vaddr, TlbEntry &entry)

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

void	flushProcesses ()

void	flushAddr (Addr addr, uint8_t asn)

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	flushCache ()

TlbEntry *	updateCache (TlbEntry *entry)

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, bool itb=false)

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
TlbEntry *	EntryCache [3]

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

Protected Member Functions
void	nextnlu ()

TlbEntry *	lookup (Addr vpn, uint8_t asn)

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

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

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
Stats::Scalar	fetch_hits

Stats::Scalar	fetch_misses

Stats::Scalar	fetch_acv

Stats::Formula	fetch_accesses

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	data_hits

Stats::Formula	data_misses

Stats::Formula	data_acv

Stats::Formula	data_accesses

PageTable	lookupTable

std::vector< TlbEntry >	table

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...

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 53 of file tlb.hh.

Member Typedef Documentation

◆ PageTable

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

protected

Definition at line 74 of file tlb.hh.

◆ Params

typedef AlphaTLBParams AlphaISA::TLB::Params

Definition at line 84 of file tlb.hh.

Constructor & Destructor Documentation

◆ TLB()

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

Definition at line 66 of file tlb.cc.

References flushCache().

◆ ~TLB()

AlphaISA::TLB::~TLB ( )

virtual

Definition at line 72 of file tlb.cc.

Member Function Documentation

◆ checkCacheability()

Fault AlphaISA::TLB::checkCacheability	(	const RequestPtr &	req,
		bool	itb = `false`
	)

static

Definition at line 206 of file tlb.cc.

References NoFault, AlphaISA::PAddrIprSpace(), AlphaISA::PAddrUncachedBit43, AlphaISA::PAddrUncachedMask, Request::STRICT_ORDER, and Request::UNCACHEABLE.

Referenced by translateData(), translateInst(), and validVirtualAddress().

◆ demapPage()

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

inlineoverridevirtual

Implements BaseTLB.

Definition at line 102 of file tlb.hh.

References flushAddr().

◆ finalizePhysical()

Fault AlphaISA::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 619 of file tlb.cc.

References NoFault.

Referenced by updateCache().

◆ flushAddr()

void AlphaISA::TLB::flushAddr	(	Addr	addr,
		uint8_t	asn
	)

Definition at line 318 of file tlb.cc.

References addr, AlphaISA::TlbEntry::asma, AlphaISA::TlbEntry::asn, DPRINTF, flushCache(), ArmISA::i, index(), lookupTable, AlphaISA::TlbEntry::ppn, table, AlphaISA::TlbEntry::tag, MipsISA::vaddr, AlphaISA::TlbEntry::valid, and AlphaISA::VAddr::vpn().

Referenced by demapPage(), getsize(), and AlphaISA::ISA::setIpr().

◆ flushAll()

void AlphaISA::TLB::flushAll ( )

overridevirtual

Remove all entries from the TLB.

Implements BaseTLB.

Definition at line 283 of file tlb.cc.

References DPRINTF, MipsISA::fill, flushCache(), lookupTable, nlu, and table.

Referenced by getsize(), and AlphaISA::ISA::setIpr().

◆ flushCache()

void AlphaISA::TLB::flushCache ( )

inline

Definition at line 126 of file tlb.hh.

Referenced by flushAddr(), flushAll(), flushProcesses(), insert(), and TLB().

◆ flushProcesses()

void AlphaISA::TLB::flushProcesses ( )

Definition at line 293 of file tlb.cc.

References AlphaISA::TlbEntry::asma, DPRINTF, flushCache(), ArmISA::i, index(), lookupTable, AlphaISA::TlbEntry::ppn, table, AlphaISA::TlbEntry::tag, and AlphaISA::TlbEntry::valid.

Referenced by getsize(), and AlphaISA::ISA::setIpr().

◆ getsize()

int AlphaISA::TLB::getsize ( ) const

inline

Definition at line 92 of file tlb.hh.

References addr, flushAddr(), flushAll(), flushProcesses(), index(), insert(), and MipsISA::vaddr.

◆ index()

TlbEntry & AlphaISA::TLB::index ( bool advance = true )

Definition at line 591 of file tlb.cc.

References nextnlu(), nlu, and table.

Referenced by flushAddr(), flushProcesses(), getsize(), insert(), lookup(), and AlphaISA::ISA::readIpr().

◆ insert()

void AlphaISA::TLB::insert	(	Addr	vaddr,
		TlbEntry &	entry
	)

Definition at line 248 of file tlb.cc.

References addr, DPRINTF, flushCache(), ArmISA::i, index(), lookupTable, nextnlu(), nlu, panic, AlphaISA::TlbEntry::ppn, table, AlphaISA::TlbEntry::tag, MipsISA::vaddr, and AlphaISA::VAddr::vpn().

Referenced by getsize(), and AlphaISA::ISA::setIpr().

◆ lookup()

TlbEntry * AlphaISA::TLB::lookup	(	Addr	vpn,
		uint8_t	asn
	)

protected

Definition at line 164 of file tlb.cc.

References AlphaISA::TlbEntry::asma, AlphaISA::TlbEntry::asn, DPRINTF, EntryCache, ArmISA::i, index(), lookupTable, AlphaISA::TlbEntry::ppn, table, AlphaISA::TlbEntry::tag, updateCache(), and AlphaISA::TlbEntry::valid.

Referenced by nextnlu(), translateData(), and translateInst().

◆ nextnlu()

void AlphaISA::TLB::nextnlu ( )

inlineprotected

Definition at line 80 of file tlb.hh.

References lookup().

Referenced by index(), and insert().

◆ regStats()

void AlphaISA::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 77 of file tlb.cc.

References data_accesses, data_acv, data_hits, data_misses, Stats::DataWrap< Derived, InfoProxyType >::desc(), fetch_accesses, fetch_acv, fetch_hits, fetch_misses, SimObject::name(), Stats::DataWrap< Derived, InfoProxyType >::name(), read_accesses, read_acv, read_hits, read_misses, Stats::Group::regStats(), write_accesses, write_acv, write_hits, and write_misses.

Referenced by takeOverFrom().

◆ serialize()

void AlphaISA::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 348 of file tlb.cc.

References csprintf(), ArmISA::i, nlu, SERIALIZE_SCALAR, Serializable::serializeSection(), and table.

Referenced by validVirtualAddress().

◆ takeOverFrom()

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

inlineoverridevirtual

Take over from an old tlb context.

Implements BaseTLB.

Definition at line 88 of file tlb.hh.

References regStats().

◆ translateAtomic()

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

overridevirtual

Implements BaseTLB.

Definition at line 602 of file tlb.cc.

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

Referenced by translateTiming(), and updateCache().

◆ translateData()

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

protected

Check for alignment faults

Definition at line 452 of file tlb.cc.

References AlphaISA::ALT_MODE_AM(), AlphaISA::AlphaRequestFlags::ALTMODE, checkCacheability(), DPRINTF, AlphaISA::DTB_ASN_ASN(), AlphaISA::DTB_CM_CM(), AlphaISA::IPR_ALT_MODE, AlphaISA::IPR_DTB_ASN, AlphaISA::IPR_DTB_CM, lookup(), AlphaISA::MM_STAT_ACV_MASK, AlphaISA::MM_STAT_BAD_VA_MASK, AlphaISA::MM_STAT_DTB_MISS_MASK, AlphaISA::MM_STAT_FONR_MASK, AlphaISA::MM_STAT_FONW_MASK, AlphaISA::MM_STAT_WR_MASK, ArmISA::mode, MODE2MASK, AlphaISA::mode_kernel, ArmISA::offset, AlphaISA::PAddrImplMask, AlphaISA::PAddrUncachedBit40, AlphaISA::PageShift, AlphaISA::PcPAL(), Request::PHYSICAL, read_accesses, read_acv, read_hits, read_misses, ThreadContext::readMiscRegNoEffect(), ULL, AlphaISA::VAddrSpaceEV6(), validVirtualAddress(), AlphaISA::AlphaRequestFlags::VPTE, write_accesses, write_acv, write_hits, and write_misses.

Referenced by translateAtomic(), and updateCache().

◆ translateInst()

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

protected

Definition at line 375 of file tlb.cc.

References checkCacheability(), AlphaISA::DTB_ASN_ASN(), fetch_acv, fetch_hits, fetch_misses, FullSystem, AlphaISA::ICM_CM(), AlphaISA::IPR_DTB_ASN, AlphaISA::IPR_ICM, lookup(), AlphaISA::mode_kernel, NoFault, ArmISA::offset, AlphaISA::PAddrImplMask, AlphaISA::PAddrUncachedBit40, AlphaISA::PageShift, AlphaISA::PcPAL(), Request::PHYSICAL, ThreadContext::readMiscRegNoEffect(), ULL, AlphaISA::VAddrSpaceEV6(), and validVirtualAddress().

Referenced by translateAtomic(), and updateCache().

◆ translateTiming()

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

overridevirtual

Implements BaseTLB.

Definition at line 611 of file tlb.cc.

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

Referenced by updateCache().

◆ unserialize()

void AlphaISA::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 359 of file tlb.cc.

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

Referenced by validVirtualAddress().

◆ updateCache()

TlbEntry* AlphaISA::TLB::updateCache ( TlbEntry * entry )

inline

Definition at line 132 of file tlb.hh.

References finalizePhysical(), ArmISA::mode, translateAtomic(), translateData(), translateInst(), and translateTiming().

Referenced by lookup().

◆ validVirtualAddress()

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

inlinestatic

Definition at line 110 of file tlb.hh.

References checkCacheability(), serialize(), unserialize(), and AlphaISA::VAddrUnImplMask.

Referenced by translateData(), and translateInst().

Member Data Documentation

◆ data_accesses

Stats::Formula AlphaISA::TLB::data_accesses

protected

Definition at line 71 of file tlb.hh.

Referenced by regStats().

◆ data_acv

Stats::Formula AlphaISA::TLB::data_acv

protected

Definition at line 70 of file tlb.hh.

Referenced by regStats().

◆ data_hits

Stats::Formula AlphaISA::TLB::data_hits

protected

Definition at line 68 of file tlb.hh.

Referenced by regStats().

◆ data_misses

Stats::Formula AlphaISA::TLB::data_misses

protected

Definition at line 69 of file tlb.hh.

Referenced by regStats().

◆ EntryCache

TlbEntry* AlphaISA::TLB::EntryCache[3]

Definition at line 124 of file tlb.hh.

Referenced by lookup().

◆ fetch_accesses

Stats::Formula AlphaISA::TLB::fetch_accesses

mutableprotected

Definition at line 59 of file tlb.hh.

Referenced by regStats().

◆ fetch_acv

Stats::Scalar AlphaISA::TLB::fetch_acv

mutableprotected

Definition at line 58 of file tlb.hh.

Referenced by regStats(), and translateInst().

◆ fetch_hits

Stats::Scalar AlphaISA::TLB::fetch_hits

mutableprotected

Definition at line 56 of file tlb.hh.

Referenced by regStats(), and translateInst().

◆ fetch_misses

Stats::Scalar AlphaISA::TLB::fetch_misses

mutableprotected

Definition at line 57 of file tlb.hh.

Referenced by regStats(), and translateInst().

◆ lookupTable

PageTable AlphaISA::TLB::lookupTable

protected

Definition at line 75 of file tlb.hh.

Referenced by flushAddr(), flushAll(), flushProcesses(), insert(), lookup(), and unserialize().

◆ nlu

int AlphaISA::TLB::nlu

protected

Definition at line 78 of file tlb.hh.

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

◆ read_accesses

Stats::Scalar AlphaISA::TLB::read_accesses

mutableprotected

Definition at line 63 of file tlb.hh.

Referenced by regStats(), and translateData().

◆ read_acv

Stats::Scalar AlphaISA::TLB::read_acv

mutableprotected

Definition at line 62 of file tlb.hh.

Referenced by regStats(), and translateData().

◆ read_hits

Stats::Scalar AlphaISA::TLB::read_hits

mutableprotected

Definition at line 60 of file tlb.hh.

Referenced by regStats(), and translateData().

◆ read_misses

Stats::Scalar AlphaISA::TLB::read_misses

mutableprotected

Definition at line 61 of file tlb.hh.

Referenced by regStats(), and translateData().

◆ table

std::vector<TlbEntry> AlphaISA::TLB::table

protected

Definition at line 77 of file tlb.hh.

Referenced by flushAddr(), flushAll(), flushProcesses(), index(), insert(), lookup(), serialize(), and unserialize().

◆ write_accesses

Stats::Scalar AlphaISA::TLB::write_accesses

mutableprotected

Definition at line 67 of file tlb.hh.

Referenced by regStats(), and translateData().

◆ write_acv

Stats::Scalar AlphaISA::TLB::write_acv

mutableprotected

Definition at line 66 of file tlb.hh.

Referenced by regStats(), and translateData().

◆ write_hits

Stats::Scalar AlphaISA::TLB::write_hits

mutableprotected

Definition at line 64 of file tlb.hh.

Referenced by regStats(), and translateData().

◆ write_misses

Stats::Scalar AlphaISA::TLB::write_misses

mutableprotected

Definition at line 65 of file tlb.hh.

Referenced by regStats(), and translateData().

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

arch/alpha/tlb.hh
arch/alpha/tlb.cc

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Types

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ PageTable

◆ Params

Constructor & Destructor Documentation

◆ TLB()

◆ ~TLB()

Member Function Documentation

◆ checkCacheability()

◆ demapPage()

◆ finalizePhysical()

◆ flushAddr()

◆ flushAll()

◆ flushCache()

◆ flushProcesses()

◆ getsize()

◆ index()

◆ insert()

◆ lookup()

◆ nextnlu()

◆ regStats()

◆ serialize()

◆ takeOverFrom()

◆ translateAtomic()

◆ translateData()

◆ translateInst()

◆ translateTiming()

◆ unserialize()

◆ updateCache()

◆ validVirtualAddress()

Member Data Documentation

◆ data_accesses

◆ data_acv

◆ data_hits

◆ data_misses

◆ EntryCache

◆ fetch_accesses

◆ fetch_acv

◆ fetch_hits

◆ fetch_misses

◆ lookupTable

◆ nlu

◆ read_accesses

◆ read_acv

◆ read_hits

◆ read_misses

◆ table

◆ write_accesses

◆ write_acv

◆ write_hits

◆ write_misses