#include <tlb.hh>

Inheritance diagram for SparcISA::TLB:

Public Types
typedef SparcTLBParams	Params

Public Types inherited from BaseTLB
enum	Mode { Read, Write, Execute }

Public Types inherited from SimObject
typedef SimObjectParams	Params

Public Member Functions
TlbEntry *	lookup (Addr va, int partition_id, bool real, int context_id=0, bool update_used=true)
	lookup an entry in the TLB based on the partition id, and real bit if real is true or the partition id, and context id if real is false. More...

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

	TLB (const Params *p)

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

void	demapPage (Addr vaddr, uint64_t asn) override

void	dumpAll ()

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 with CheckerCPU. More...

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

Cycles	doMmuRegRead (ThreadContext tc, Packet pkt)

Cycles	doMmuRegWrite (ThreadContext tc, Packet pkt)

void	GetTsbPtr (ThreadContext tc, Addr addr, int ctx, Addr ptrs)

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

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

uint64_t	TteRead (int entry)
	Give an entry id, read that tlb entries' tte. More...

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	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
enum	FaultTypes { OtherFault = 0, PrivViolation = 0x1, SideEffect = 0x2, AtomicToIo = 0x4, IllegalAsi = 0x8, LoadFromNfo = 0x10, VaOutOfRange = 0x20, VaOutOfRangeJmp = 0x40 }

enum	ContextType { Primary = 0, Secondary = 1, Nucleus = 2 }

enum	TsbPageSize { Ps0, Ps1 }

typedef TlbMap::iterator	MapIter

Protected Member Functions
void	insert (Addr vpn, int partition_id, int context_id, bool real, const PageTableEntry &PTE, int entry=-1)
	Insert a PTE into the TLB. More...

uint64_t	TagRead (int entry)
	Given an entry id, read that tlb entries' tag. More...

void	demapAll (int partition_id)
	Remove all non-locked entries from the tlb that match partition id. More...

void	demapContext (int partition_id, int context_id)
	Remove all entries that match a given context/partition id. More...

void	demapPage (Addr va, int partition_id, bool real, int context_id)
	Remve all entries that match a certain partition id, (contextid), and va). More...

bool	validVirtualAddress (Addr va, bool am)
	Checks if the virtual address provided is a valid one. More...

void	writeSfsr (bool write, ContextType ct, bool se, FaultTypes ft, int asi)

void	clearUsedBits ()

void	writeTagAccess (Addr va, int context)

Fault	translateInst (RequestPtr req, ThreadContext *tc)

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

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
uint64_t	sfar

uint64_t	c0_tsb_ps0

uint64_t	c0_tsb_ps1

uint64_t	c0_config

uint64_t	cx_tsb_ps0

uint64_t	cx_tsb_ps1

uint64_t	cx_config

uint64_t	sfsr

uint64_t	tag_access

TlbMap	lookupTable

TlbEntry *	tlb

int	size

int	usedEntries

int	lastReplaced

uint64_t	cacheState

bool	cacheValid

std::list< TlbEntry * >	freeList

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
void	writeSfsr (Addr a, bool write, ContextType ct, bool se, FaultTypes ft, int asi)

uint64_t	MakeTsbPtr (TsbPageSize ps, uint64_t tag_access, uint64_t c0_tsb, uint64_t c0_config, uint64_t cX_tsb, uint64_t cX_config)

Private Attributes
TlbEntry *	cacheEntry [2]

ASI	cacheAsi [2]

Friends
class	FastInstructionAccessMMUMiss

class	FastDataAccessMMUMiss

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 47 of file tlb.hh.

Member Typedef Documentation

typedef TlbMap::iterator SparcISA::TLB::MapIter

protected

Definition at line 67 of file tlb.hh.

typedef SparcTLBParams SparcISA::TLB::Params

Definition at line 153 of file tlb.hh.

Member Enumeration Documentation

enum SparcISA::TLB::ContextType

protected

Enumerator
Primary
Secondary
Nucleus

Definition at line 92 of file tlb.hh.

enum SparcISA::TLB::FaultTypes

protected

Enumerator
OtherFault
PrivViolation
SideEffect
AtomicToIo
IllegalAsi
LoadFromNfo
VaOutOfRange
VaOutOfRangeJmp

Definition at line 81 of file tlb.hh.

enum SparcISA::TLB::TsbPageSize

protected

Enumerator
Ps0
Ps1

Definition at line 98 of file tlb.hh.

Constructor & Destructor Documentation

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

Definition at line 53 of file tlb.cc.

References c0_config, c0_tsb_ps0, c0_tsb_ps1, cacheEntry, cx_config, cx_tsb_ps0, cx_tsb_ps1, fatal, freeList, sfar, sfsr, size, tag_access, tlb, and X86ISA::x.

Member Function Documentation

void SparcISA::TLB::clearUsedBits ( )

protected

Definition at line 81 of file tlb.cc.

References SparcISA::TlbMap::begin(), SparcISA::TlbMap::end(), ArmISA::i, SparcISA::PageTableEntry::locked(), lookupTable, SparcISA::TlbEntry::pte, ArmISA::t, SparcISA::TlbEntry::used, and usedEntries.

Referenced by insert(), and lookup().

void SparcISA::TLB::demapAll ( int partition_id )

protected

Remove all non-locked entries from the tlb that match partition id.

Definition at line 308 of file tlb.cc.

References cacheValid, DPRINTF, SparcISA::TlbMap::erase(), freeList, lookupTable, SparcISA::TlbRange::partitionId, SparcISA::TlbEntry::range, size, tlb, SparcISA::TlbEntry::used, usedEntries, SparcISA::TlbEntry::valid, and X86ISA::x.

Referenced by doMmuRegWrite().

void SparcISA::TLB::demapContext	(	int	partition_id,
		int	context_id
	)

protected

Remove all entries that match a given context/partition id.

Definition at line 286 of file tlb.cc.

References cacheValid, DPRINTF, SparcISA::TlbMap::erase(), freeList, lookupTable, SparcISA::TlbRange::partitionId, SparcISA::TlbEntry::range, size, tlb, SparcISA::TlbEntry::used, usedEntries, SparcISA::TlbEntry::valid, and X86ISA::x.

Referenced by doMmuRegWrite().

void SparcISA::TLB::demapPage	(	Addr	va,
		int	partition_id,
		bool	real,
		int	context_id
	)

protected

Remve all entries that match a certain partition id, (contextid), and va).

Definition at line 254 of file tlb.cc.

References cacheValid, SparcISA::TlbRange::contextId, DPRINTF, SparcISA::TlbMap::end(), SparcISA::TlbMap::erase(), SparcISA::TlbMap::find(), freeList, ArmISA::i, lookupTable, SparcISA::TlbRange::partitionId, SparcISA::TlbRange::real, SparcISA::TlbRange::size, usedEntries, SparcISA::TlbRange::va, and ArmISA::va.

Referenced by doMmuRegWrite().

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

inlineoverridevirtual

Implements BaseTLB.

Definition at line 159 of file tlb.hh.

References panic.

Cycles SparcISA::TLB::doMmuRegRead	(	ThreadContext *	tc,
		Packet *	pkt
	)

Definition at line 865 of file tlb.cc.

Cycles SparcISA::TLB::doMmuRegWrite	(	ThreadContext *	tc,
		Packet *	pkt
	)

Definition at line 1050 of file tlb.cc.

References SparcISA::ASI_DMMU, SparcISA::ASI_DMMU_CTXT_NONZERO_CONFIG, SparcISA::ASI_DMMU_CTXT_NONZERO_TSB_BASE_PS0, SparcISA::ASI_DMMU_CTXT_NONZERO_TSB_BASE_PS1, SparcISA::ASI_DMMU_CTXT_ZERO_CONFIG, SparcISA::ASI_DMMU_CTXT_ZERO_TSB_BASE_PS0, SparcISA::ASI_DMMU_CTXT_ZERO_TSB_BASE_PS1, SparcISA::ASI_DMMU_DEMAP, SparcISA::ASI_DTLB_DATA_ACCESS_REG, SparcISA::ASI_DTLB_DATA_IN_REG, SparcISA::ASI_HYP_SCRATCHPAD, SparcISA::ASI_IMMU, SparcISA::ASI_IMMU_CTXT_NONZERO_CONFIG, SparcISA::ASI_IMMU_CTXT_NONZERO_TSB_BASE_PS0, SparcISA::ASI_IMMU_CTXT_NONZERO_TSB_BASE_PS1, SparcISA::ASI_IMMU_CTXT_ZERO_CONFIG, SparcISA::ASI_IMMU_CTXT_ZERO_TSB_BASE_PS0, SparcISA::ASI_IMMU_CTXT_ZERO_TSB_BASE_PS1, SparcISA::ASI_IMMU_DEMAP, SparcISA::ASI_ITLB_DATA_ACCESS_REG, SparcISA::ASI_ITLB_DATA_IN_REG, SparcISA::ASI_LSU_CONTROL_REG, SparcISA::ASI_MMU, SparcISA::ASI_QUEUE, SparcISA::ASI_SCRATCHPAD, SparcISA::ASI_SPARC_ERROR_EN_REG, SparcISA::ASI_SPARC_ERROR_STATUS_REG, SparcISA::ASI_SWVR_INTR_RECEIVE, SparcISA::ASI_SWVR_UDB_INTR_W, bits(), c0_config, c0_tsb_ps0, c0_tsb_ps1, cx_config, cx_tsb_ps0, cx_tsb_ps1, data, demapAll(), demapContext(), demapPage(), DPRINTF, findMsbSet(), Packet::get(), SparcISA::Interrupts::get_vec(), Packet::getAddr(), Request::getArchFlags(), ThreadContext::getCpuPtr(), ThreadContext::getITBPtr(), ThreadContext::getSystemPtr(), ignore(), inform, insert(), SparcISA::IT_INT_VEC, Packet::makeAtomicResponse(), mbits(), SparcISA::MISCREG_MMU_LSU_CTRL, SparcISA::MISCREG_MMU_P_CONTEXT, SparcISA::MISCREG_MMU_PART_ID, SparcISA::MISCREG_MMU_S_CONTEXT, SparcISA::MISCREG_QUEUE_CPU_MONDO_HEAD, SparcISA::MISCREG_SCRATCHPAD_R0, panic, SparcISA::PageTableEntry::populate(), ThreadContext::readMiscReg(), Packet::req, ThreadContext::setMiscReg(), sfsr, SparcISA::PageTableEntry::sun4u, SparcISA::PageTableEntry::sun4v, tag_access, System::threadContexts, and ArmISA::va.

void SparcISA::TLB::dumpAll ( )

Definition at line 240 of file tlb.cc.

References SparcISA::TlbRange::contextId, DPRINTFN, ArmISA::i, SparcISA::PageTableEntry::paddr(), SparcISA::TlbEntry::pte, SparcISA::TlbEntry::range, SparcISA::TlbRange::real, size, SparcISA::TlbRange::size, tlb, SparcISA::TlbRange::va, and X86ISA::x.

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

Definition at line 859 of file tlb.cc.

References NoFault.

void SparcISA::TLB::flushAll ( )

overridevirtual

Remove all entries from the TLB.

Implements BaseTLB.

Definition at line 327 of file tlb.cc.

References cacheValid, SparcISA::TlbMap::clear(), freeList, lookupTable, size, tlb, SparcISA::TlbEntry::used, usedEntries, SparcISA::TlbEntry::valid, and X86ISA::x.

void SparcISA::TLB::GetTsbPtr	(	ThreadContext *	tc,
		Addr	addr,
		int	ctx,
		Addr *	ptrs
	)

Definition at line 1303 of file tlb.cc.

References c0_config, c0_tsb_ps0, c0_tsb_ps1, cx_config, cx_tsb_ps0, cx_tsb_ps1, ThreadContext::getITBPtr(), MakeTsbPtr(), mbits(), Ps0, Ps1, and tag_access.

Referenced by SparcISA::vtophys().

void SparcISA::TLB::insert	(	Addr	vpn,
		int	partition_id,
		int	context_id,
		bool	real,
		const PageTableEntry &	PTE,
		int	entry = `-1`
	)

protected

Insert a PTE into the TLB.

Definition at line 95 of file tlb.cc.

References cacheValid, clearUsedBits(), SparcISA::TlbRange::contextId, DPRINTF, SparcISA::TlbMap::end(), SparcISA::TlbMap::erase(), freeList, ArmISA::i, SparcISA::TlbMap::insert(), lastReplaced, lookupTable, SparcISA::PageTableEntry::paddr(), SparcISA::TlbRange::partitionId, SparcISA::TlbEntry::pte, SparcISA::TlbEntry::range, SparcISA::TlbRange::real, size, SparcISA::PageTableEntry::size(), SparcISA::TlbRange::size, tlb, SparcISA::TlbEntry::used, usedEntries, SparcISA::TlbRange::va, ArmISA::va, SparcISA::PageTableEntry::valid(), SparcISA::TlbEntry::valid, and X86ISA::x.

Referenced by doMmuRegWrite().

TlbEntry * SparcISA::TLB::lookup	(	Addr	va,
		int	partition_id,
		bool	real,
		int	context_id = `0`,
		bool	update_used = `true`
	)

lookup an entry in the TLB based on the partition id, and real bit if real is true or the partition id, and context id if real is false.

Parameters

va	the virtual address not shifted (e.g. bottom 13 bits are 0)
paritition_id	partition this entry is for
real	is this a real->phys or virt->phys translation
context_id	if this is virt->phys what context
update_used	should ew update the used bits in the entries on not useful if we are trying to do a va->pa without mucking with any state for a debug read for example.