Memory operation metadata. More...

#include <lsq.hh>

Inheritance diagram for gem5::o3::LSQ::LSQRequest:

Public Member Functions
virtual bool	recvTimingResp (PacketPtr pkt)=0

virtual void	sendPacketToCache ()=0

virtual void	buildPackets ()=0

virtual Cycles	handleLocalAccess (gem5::ThreadContext *thread, PacketPtr pkt)=0
	Memory mapped IPR accesses.

virtual bool	isCacheBlockHit (Addr blockAddr, Addr cacheBlockMask)=0
	Test if the request accesses a particular cache line.

void	packetSent ()
	Update the status to reflect that a packet was sent.

void	packetNotSent ()
	Update the status to reflect that a packet was not sent.

void	sendFragmentToTranslation (int i)

bool	isComplete ()

bool	isInTranslation ()

bool	isTranslationComplete ()

bool	isTranslationBlocked ()

bool	isSent ()

bool	isPartialFault ()

bool	isMemAccessRequired ()

void	setStateToFault ()

void	freeLSQEntry ()
	The LSQ entry is cleared.

void	discard ()
	The request is discarded (e.g.

void	packetReplied ()

void	writebackScheduled ()

void	writebackDone ()

void	squashTranslation ()

void	complete ()

virtual std::string	name () const


void	setContext (const ContextID &context_id)
	Convenience getters/setters.

const DynInstPtr &	instruction ()

bool	hasStaleTranslation () const

virtual void	markAsStaleTranslation ()=0

void	setVirt (Addr vaddr, unsigned size, Request::Flags flags_, RequestorID requestor_id, Addr pc)
	Set up virtual request.

ContextID	contextId () const

void	taskId (const uint32_t &v)

uint32_t	taskId () const

RequestPtr	req (int idx=0)

const RequestPtr	req (int idx=0) const

Addr	getVaddr (int idx=0) const

virtual void	initiateTranslation ()=0

PacketPtr	packet (int idx=0)

virtual PacketPtr	mainPacket ()

virtual RequestPtr	mainReq ()

bool	isAnyOutstandingRequest ()
	Test if there is any in-flight translation or mem access request.

bool	isReleased ()
	Test if the LSQRequest has been released, i.e.

bool	isSplit () const

bool	needWBToRegister () const

Public Member Functions inherited from gem5::BaseMMU::Translation
virtual	~Translation ()

virtual void	finish (const Fault &fault, const RequestPtr &req, ThreadContext *tc, BaseMMU::Mode mode)=0

Public Member Functions inherited from gem5::Packet::SenderState
	SenderState ()

virtual	~SenderState ()

Public Attributes
LSQUnit &	_port

const DynInstPtr	_inst

uint32_t	_taskId

PacketDataPtr	_data

std::vector< PacketPtr >	_packets

std::vector< RequestPtr >	_reqs

std::vector< Fault >	_fault

uint64_t *	_res

const Addr	_addr

const uint32_t	_size

const Request::Flags	_flags

std::vector< bool >	_byteEnable

uint32_t	_numOutstandingPackets

AtomicOpFunctorPtr	_amo_op

bool	_hasStaleTranslation

Public Attributes inherited from gem5::Packet::SenderState
SenderState *	predecessor

Protected Types
enum	Flag : FlagsStorage { IsLoad = 0x00000001 , WriteBackToRegister = 0x00000002 , Delayed = 0x00000004 , IsSplit = 0x00000008 , TranslationStarted = 0x00000010 , TranslationFinished = 0x00000020 , Sent = 0x00000040 , Retry = 0x00000080 , Complete = 0x00000100 , TranslationSquashed = 0x00000200 , Discarded = 0x00000400 , LSQEntryFreed = 0x00000800 , WritebackScheduled = 0x00001000 , WritebackDone = 0x00002000 , IsAtomic = 0x00004000 }

enum class	State { NotIssued , Translation , Request , Fault , PartialFault }

typedef uint32_t	FlagsStorage

typedef Flags< FlagsStorage >	FlagsType

Protected Member Functions
void	setState (const State &newState)

void	markDelayed () override
	Signal that the translation has been delayed due to a hw page table walk.

bool	isDelayed ()

LSQUnit *	lsqUnit ()

	LSQRequest (LSQUnit *port, const DynInstPtr &inst, bool isLoad)

	LSQRequest (LSQUnit port, const DynInstPtr &inst, bool isLoad, const Addr &addr, const uint32_t &size, const Request::Flags &flags_, PacketDataPtr data=nullptr, uint64_t res=nullptr, AtomicOpFunctorPtr amo_op=nullptr, bool stale_translation=false)

bool	isLoad () const

bool	isAtomic () const

void	install ()
	Install the request in the LQ/SQ.

bool	squashed () const override
	This function is used by the page table walker to determine if it should translate the a pending request or if the underlying request has been squashed.

void	release (Flag reason)
	Release the LSQRequest.

void	addReq (Addr addr, unsigned size, const std::vector< bool > &byte_enable)
	Helper function used to add a (sub)request, given its address `addr`, size `size` and byte-enable mask `byteEnable`.

virtual	~LSQRequest ()
	Destructor.

Protected Attributes
FlagsType	flags

State	_state

uint32_t	numTranslatedFragments

uint32_t	numInTranslationFragments

Detailed Description

Memory operation metadata.

This class holds the information about a memory operation. It lives from initiateAcc to resource deallocation at commit or squash. LSQRequest objects are owned by the LQ/SQ Entry in the LSQUnit that holds the operation. In addition, the LSQRequest is a TranslationState, therefore, upon squash, there must be a defined ownership transferal in case the LSQ resources are deallocated before the TLB is done using the TranslationState. If that happens, the LSQRequest will be self-owned, and responsible to detect that its services are no longer required and self-destruct.

Lifetime of a LSQRequest: +-----------------—+ |LSQ creates and owns| +-----------------—+ | +-----------------—+ | Initate translation| +-----------------—+ | ___^___ ___/ ___ ______/ Squashed? \ | ___ ___/ | ___ ___/ | v | | | +-----------------—+ | | Translation done | | +-----------------—+ | | | +-----------------—+ | | Send packet |<---—+ | +-----------------—+ | | | | | ___^___ | | ___/ ___ | | ____/ Squashed? \ | | | ___ ___/ | | | ___ ___/ | | | v | | | | | | | ___^___ | | | ___/ ___ | | | / Done? __________| | | ___ ___/ | | ___ ___/

	v
	+-----------------—+

| | | Manage stuff | | | | Free resources | | | +-----------------—+ | | | | +-----------------—+ | | | self owned | | +->| on recvTimingResp | | | free resources | | +-----------------—+ | | +-------------------—+ | | self owned (Trans) | +-->| on TranslationFinish | | free resources | +-------------------—+

Definition at line 219 of file lsq.hh.

Member Typedef Documentation

◆ FlagsStorage

typedef uint32_t gem5::o3::LSQ::LSQRequest::FlagsStorage

protected

Definition at line 222 of file lsq.hh.

◆ FlagsType

typedef Flags<FlagsStorage> gem5::o3::LSQ::LSQRequest::FlagsType

protected

Definition at line 223 of file lsq.hh.

Member Enumeration Documentation

◆ Flag

enum gem5::o3::LSQ::LSQRequest::Flag : FlagsStorage

protected

Enumerator
IsLoad
WriteBackToRegister	True if this request needs to writeBack to register. Will be set in case of load or a store/atomic that writes registers (SC)
Delayed
IsSplit
TranslationStarted	True if any translation has been sent to TLB.
TranslationFinished	True if there are un-replied outbound translations.
Sent
Retry
Complete
TranslationSquashed	Ownership tracking flags. Translation squashed.
Discarded	Request discarded.
LSQEntryFreed	LSQ resources freed.
WritebackScheduled	Store written back.
WritebackDone
IsAtomic	True if this is an atomic request.

Definition at line 225 of file lsq.hh.

◆ State

enum class gem5::o3::LSQ::LSQRequest::State

strongprotected

Enumerator
NotIssued
Translation
Request
Fault
PartialFault

Definition at line 257 of file lsq.hh.

Constructor & Destructor Documentation

◆ LSQRequest() [1/2]

gem5::o3::LSQ::LSQRequest::LSQRequest	(	LSQUnit *	port,
		const DynInstPtr &	inst,
		bool	isLoad )

protected

Definition at line 1025 of file lsq.cc.

References _addr, _amo_op, _data, _flags, _inst, _numOutstandingPackets, _port, _res, _size, _state, flags, install(), IsAtomic, IsLoad, isLoad(), NotIssued, and WriteBackToRegister.

Referenced by gem5::o3::LSQ::SingleDataRequest::SingleDataRequest(), and gem5::o3::LSQ::SplitDataRequest::SplitDataRequest().

◆ LSQRequest() [2/2]

gem5::o3::LSQ::LSQRequest::LSQRequest	(	LSQUnit *	port,
		const DynInstPtr &	inst,
		bool	isLoad,
		const Addr &	addr,
		const uint32_t &	size,
		const Request::Flags &	flags_,
		PacketDataPtr	data = nullptr,
		uint64_t *	res = nullptr,
		AtomicOpFunctorPtr	amo_op = nullptr,
		bool	stale_translation = false )

protected

Definition at line 1040 of file lsq.cc.

References _addr, _amo_op, _data, _flags, _hasStaleTranslation, _inst, _numOutstandingPackets, _port, _res, _size, _state, gem5::X86ISA::addr, data, flags, install(), IsAtomic, IsLoad, isLoad(), NotIssued, numInTranslationFragments, numTranslatedFragments, and WriteBackToRegister.

◆ ~LSQRequest()

gem5::o3::LSQ::LSQRequest::~LSQRequest ( )

protectedvirtual

Destructor.

The LSQRequest owns the request. If the packet has already been sent, the sender state will be deleted upon receiving the reply.

Definition at line 1108 of file lsq.cc.

References _inst, _packets, isAnyOutstandingRequest(), and gem5::MipsISA::r.

Member Function Documentation

◆ addReq()

void gem5::o3::LSQ::LSQRequest::addReq	(	Addr	addr,
		unsigned	size,
		const std::vector< bool > &	byte_enable )

protected

Helper function used to add a (sub)request, given its address addr, size size and byte-enable mask byteEnable.

The request is only added if there is at least one active element in the mask.

Definition at line 1078 of file lsq.cc.

References _amo_op, _flags, _inst, _reqs, gem5::X86ISA::addr, instruction(), gem5::isAnyActiveElement(), gem5::Request::NO_ACCESS, req(), Request, and gem5::Packet::setHtmTransactional().

Referenced by gem5::o3::LSQ::SingleDataRequest::initiateTranslation(), gem5::o3::LSQ::SplitDataRequest::initiateTranslation(), and gem5::o3::LSQ::UnsquashableDirectRequest::initiateTranslation().

◆ buildPackets()

virtual void gem5::o3::LSQ::LSQRequest::buildPackets ( )

pure virtual

Implemented in gem5::o3::LSQ::SingleDataRequest, and gem5::o3::LSQ::SplitDataRequest.

Referenced by gem5::o3::LSQUnit::read(), and gem5::o3::LSQUnit::writebackStores().

◆ complete()

void gem5::o3::LSQ::LSQRequest::complete ( )

inline

Definition at line 591 of file lsq.hh.

References Complete, and flags.

Referenced by gem5::o3::LSQUnit::writebackStores().

◆ contextId()

ContextID gem5::o3::LSQ::LSQRequest::contextId ( ) const

Definition at line 1118 of file lsq.cc.

References _inst.

Referenced by gem5::o3::LSQ::completeDataAccess(), gem5::o3::LSQ::read(), and gem5::o3::LSQ::recvTimingResp().

◆ discard()

void gem5::o3::LSQ::LSQRequest::discard ( )

inline

The request is discarded (e.g.

partial store-load forwarding)

Definition at line 548 of file lsq.hh.

References Discarded, and release().

Referenced by gem5::o3::LSQUnit::read().

◆ freeLSQEntry()

void gem5::o3::LSQ::LSQRequest::freeLSQEntry ( )

inline

The LSQ entry is cleared.

Definition at line 539 of file lsq.hh.

References LSQEntryFreed, and release().

◆ getVaddr()

Addr gem5::o3::LSQ::LSQRequest::getVaddr ( int idx = 0 ) const

inline

Definition at line 395 of file lsq.hh.

References req().

Referenced by gem5::o3::LSQ::pushRequest().

◆ handleLocalAccess()

virtual Cycles gem5::o3::LSQ::LSQRequest::handleLocalAccess	(	gem5::ThreadContext *	thread,
		PacketPtr	pkt )

pure virtual

Memory mapped IPR accesses.

Implemented in gem5::o3::LSQ::SingleDataRequest, and gem5::o3::LSQ::SplitDataRequest.

References gem5::o3::LSQ::thread.

◆ hasStaleTranslation()

bool gem5::o3::LSQ::LSQRequest::hasStaleTranslation ( ) const

inline

Definition at line 366 of file lsq.hh.

References _hasStaleTranslation.

◆ initiateTranslation()

virtual void gem5::o3::LSQ::LSQRequest::initiateTranslation ( )

pure virtual

Implemented in gem5::o3::LSQ::SingleDataRequest, gem5::o3::LSQ::SplitDataRequest, and gem5::o3::LSQ::UnsquashableDirectRequest.

Referenced by gem5::o3::LSQ::pushRequest().

◆ install()

void gem5::o3::LSQ::LSQRequest::install ( )

protected

Install the request in the LQ/SQ.

Definition at line 1064 of file lsq.cc.

References _inst, _port, and isLoad().

Referenced by LSQRequest(), and LSQRequest().

◆ instruction()

const DynInstPtr & gem5::o3::LSQ::LSQRequest::instruction ( )

inline

Definition at line 364 of file lsq.hh.

References _inst.

Referenced by addReq(), gem5::o3::LSQUnit::completeDataAccess(), and gem5::o3::LSQUnit::trySendPacket().

◆ isAnyOutstandingRequest()

bool gem5::o3::LSQ::LSQRequest::isAnyOutstandingRequest ( )

inline

Test if there is any in-flight translation or mem access request.

Definition at line 418 of file lsq.hh.

References _numOutstandingPackets, flags, numInTranslationFragments, WritebackDone, and WritebackScheduled.

Referenced by gem5::o3::LSQUnit::read(), release(), and ~LSQRequest().

◆ isAtomic()

bool gem5::o3::LSQ::LSQRequest::isAtomic ( ) const

inlineprotected

Definition at line 308 of file lsq.hh.

References flags, and IsAtomic.

◆ isCacheBlockHit()

virtual bool gem5::o3::LSQ::LSQRequest::isCacheBlockHit	(	Addr	blockAddr,
		Addr	cacheBlockMask )

pure virtual

Test if the request accesses a particular cache line.

Implemented in gem5::o3::LSQ::SingleDataRequest, and gem5::o3::LSQ::SplitDataRequest.

Referenced by gem5::o3::LSQUnit::checkSnoop().

◆ isComplete()

bool gem5::o3::LSQ::LSQRequest::isComplete ( )

inline

Definition at line 484 of file lsq.hh.

References Complete, and flags.

◆ isDelayed()

bool gem5::o3::LSQ::LSQRequest::isDelayed ( )

inlineprotected

Definition at line 273 of file lsq.hh.

References Delayed, and flags.

◆ isInTranslation()

bool gem5::o3::LSQ::LSQRequest::isInTranslation ( )

inline

Definition at line 490 of file lsq.hh.

References _state, and Translation.

Referenced by isTranslationComplete().

◆ isLoad()

bool gem5::o3::LSQ::LSQRequest::isLoad ( ) const

inlineprotected

Definition at line 302 of file lsq.hh.

References flags, and IsLoad.

Referenced by gem5::o3::LSQ::SingleDataRequest::buildPackets(), gem5::o3::LSQ::SplitDataRequest::buildPackets(), gem5::o3::LSQ::SplitDataRequest::handleLocalAccess(), install(), isMemAccessRequired(), LSQRequest(), LSQRequest(), gem5::o3::LSQ::SplitDataRequest::recvTimingResp(), sendFragmentToTranslation(), gem5::o3::LSQ::SingleDataRequest::sendPacketToCache(), gem5::o3::LSQ::SplitDataRequest::sendPacketToCache(), gem5::o3::LSQ::SingleDataRequest::SingleDataRequest(), and gem5::o3::LSQ::SplitDataRequest::SplitDataRequest().

◆ isMemAccessRequired()

bool gem5::o3::LSQ::LSQRequest::isMemAccessRequired ( )

inline

Definition at line 523 of file lsq.hh.

References _state, isLoad(), isPartialFault(), and Request.

Referenced by gem5::o3::LSQ::pushRequest().

◆ isPartialFault()

bool gem5::o3::LSQ::LSQRequest::isPartialFault ( )

inline

Definition at line 517 of file lsq.hh.

References _state, and PartialFault.

Referenced by isMemAccessRequired().

◆ isReleased()

bool gem5::o3::LSQ::LSQRequest::isReleased ( )

inline

Test if the LSQRequest has been released, i.e.

self-owned. An LSQRequest manages itself when the resources on the LSQ are freed but the translation is still going on and the LSQEntry was freed.

Definition at line 432 of file lsq.hh.

References Discarded, flags, and LSQEntryFreed.

Referenced by packetReplied(), gem5::o3::LSQUnit::recvTimingResp(), squashTranslation(), and writebackDone().

◆ isSent()

bool gem5::o3::LSQ::LSQRequest::isSent ( )

inline

Definition at line 511 of file lsq.hh.

References flags, and Sent.

Referenced by gem5::o3::LSQUnit::read(), and gem5::o3::LSQUnit::writebackStores().

◆ isSplit()

bool gem5::o3::LSQ::LSQRequest::isSplit ( ) const

inline

Definition at line 439 of file lsq.hh.

References flags, and IsSplit.

Referenced by gem5::o3::LSQUnit::read().

◆ isTranslationBlocked()

bool gem5::o3::LSQ::LSQRequest::isTranslationBlocked ( )

inline

Definition at line 503 of file lsq.hh.

References _state, flags, Translation, TranslationFinished, and TranslationStarted.

◆ isTranslationComplete()

bool gem5::o3::LSQ::LSQRequest::isTranslationComplete ( )

inline

Definition at line 496 of file lsq.hh.

References flags, isInTranslation(), and TranslationStarted.

Referenced by gem5::o3::LSQ::pushRequest().

◆ lsqUnit()

LSQUnit * gem5::o3::LSQ::LSQRequest::lsqUnit ( )

inlineprotected

Definition at line 293 of file lsq.hh.

References _port.

Referenced by gem5::o3::LSQ::SingleDataRequest::sendPacketToCache(), and gem5::o3::LSQ::SplitDataRequest::sendPacketToCache().

◆ mainPacket()

virtual PacketPtr gem5::o3::LSQ::LSQRequest::mainPacket ( )

inlinevirtual

Reimplemented in gem5::o3::LSQ::SplitDataRequest.

Definition at line 401 of file lsq.hh.

References _packets, and packet().

Referenced by gem5::o3::LSQUnit::completeDataAccess().

◆ mainReq()

virtual RequestPtr gem5::o3::LSQ::LSQRequest::mainReq ( )

inlinevirtual

Reimplemented in gem5::o3::LSQ::SplitDataRequest.

Definition at line 408 of file lsq.hh.

References _reqs, and req().

Referenced by gem5::o3::LSQUnit::read(), gem5::o3::LSQUnit::write(), and gem5::o3::LSQUnit::writebackStores().

◆ markAsStaleTranslation()

virtual void gem5::o3::LSQ::LSQRequest::markAsStaleTranslation ( )

pure virtual

Implemented in gem5::o3::LSQ::SingleDataRequest, gem5::o3::LSQ::SplitDataRequest, and gem5::o3::LSQ::UnsquashableDirectRequest.

◆ markDelayed()

void gem5::o3::LSQ::LSQRequest::markDelayed ( )

inlineoverrideprotectedvirtual

Signal that the translation has been delayed due to a hw page table walk.

Implements gem5::BaseMMU::Translation.

Definition at line 272 of file lsq.hh.

References Delayed, and flags.

◆ name()

virtual std::string gem5::o3::LSQ::LSQRequest::name ( ) const

inlinevirtual

Reimplemented in gem5::o3::LSQ::SingleDataRequest, gem5::o3::LSQ::SplitDataRequest, and gem5::o3::LSQ::UnsquashableDirectRequest.

Definition at line 596 of file lsq.hh.

◆ needWBToRegister()

bool gem5::o3::LSQ::LSQRequest::needWBToRegister ( ) const

inline

Definition at line 445 of file lsq.hh.

References flags, and WriteBackToRegister.

Referenced by gem5::o3::LSQUnit::completeDataAccess().

◆ packet()

PacketPtr gem5::o3::LSQ::LSQRequest::packet ( int idx = 0 )

inline

Definition at line 398 of file lsq.hh.

References _packets.

Referenced by mainPacket(), and gem5::o3::LSQUnit::writebackStores().

◆ packetNotSent()

void gem5::o3::LSQ::LSQRequest::packetNotSent ( )

inline

Update the status to reflect that a packet was not sent.

When a packet fails to be sent, we mark the request as needing a retry. Note that Retry flag is sticky.

Definition at line 476 of file lsq.hh.

References flags, Retry, and Sent.

Referenced by gem5::o3::LSQUnit::trySendPacket().

◆ packetReplied()

void gem5::o3::LSQ::LSQRequest::packetReplied ( )

inline

Definition at line 554 of file lsq.hh.

References _numOutstandingPackets, and isReleased().

Referenced by gem5::o3::LSQ::recvTimingResp().

◆ packetSent()

void gem5::o3::LSQ::LSQRequest::packetSent ( )

inline

Update the status to reflect that a packet was sent.

Definition at line 467 of file lsq.hh.

References flags, and Sent.

Referenced by gem5::o3::LSQUnit::trySendPacket(), and gem5::o3::LSQUnit::writebackStores().

◆ recvTimingResp()

virtual bool gem5::o3::LSQ::LSQRequest::recvTimingResp ( PacketPtr pkt )

pure virtual

Implemented in gem5::o3::LSQ::SingleDataRequest, and gem5::o3::LSQ::SplitDataRequest.

Referenced by gem5::o3::LSQUnit::recvTimingResp().

◆ release()

void gem5::o3::LSQ::LSQRequest::release ( Flag reason )

inlineprotected

Release the LSQRequest.

Notify the sender state that the request it points to is not valid anymore. Understand if the request is orphan (self-managed) and if so, mark it as freed, else destroy it, as this means the end of its life cycle. An LSQRequest is orphan when its resources are released but there is any in-flight translation request to the TLB or access request to the memory.

Definition at line 329 of file lsq.hh.

References Discarded, flags, isAnyOutstandingRequest(), and LSQEntryFreed.

Referenced by discard(), and freeLSQEntry().

◆ req() [1/2]

RequestPtr gem5::o3::LSQ::LSQRequest::req ( int idx = 0 )

inline

Definition at line 392 of file lsq.hh.

References _reqs.

Referenced by addReq(), gem5::o3::LSQ::SingleDataRequest::buildPackets(), gem5::o3::LSQ::SplitDataRequest::buildPackets(), gem5::o3::LSQ::SplitDataRequest::finish(), gem5::o3::LSQ::UnsquashableDirectRequest::finish(), getVaddr(), mainReq(), gem5::o3::LSQ::pushRequest(), gem5::o3::LSQ::read(), sendFragmentToTranslation(), setContext(), setVirt(), gem5::o3::LSQ::write(), and gem5::o3::LSQUnit::write().

◆ req() [2/2]

const RequestPtr gem5::o3::LSQ::LSQRequest::req ( int idx = 0 ) const

inline

Definition at line 393 of file lsq.hh.

References _reqs.

◆ sendFragmentToTranslation()

void gem5::o3::LSQ::LSQRequest::sendFragmentToTranslation ( int i )

Definition at line 1124 of file lsq.cc.

References _inst, _port, gem5::ArmISA::i, isLoad(), numInTranslationFragments, gem5::BaseMMU::Read, req(), and gem5::BaseMMU::Write.

Referenced by gem5::o3::LSQ::SingleDataRequest::initiateTranslation(), and gem5::o3::LSQ::SplitDataRequest::initiateTranslation().

◆ sendPacketToCache()

virtual void gem5::o3::LSQ::LSQRequest::sendPacketToCache ( )

pure virtual

Implemented in gem5::o3::LSQ::SingleDataRequest, and gem5::o3::LSQ::SplitDataRequest.

Referenced by gem5::o3::LSQUnit::read(), and gem5::o3::LSQUnit::writebackStores().

◆ setContext()

void gem5::o3::LSQ::LSQRequest::setContext ( const ContextID & context_id )

inline

Convenience getters/setters.

Set up Context numbers.

Definition at line 359 of file lsq.hh.

References req().

◆ setState()

void gem5::o3::LSQ::LSQRequest::setState ( const State & newState )

inlineprotected

Definition at line 266 of file lsq.hh.

References _state.

Referenced by gem5::o3::LSQ::SingleDataRequest::finish(), gem5::o3::LSQ::SplitDataRequest::finish(), gem5::o3::LSQ::SingleDataRequest::initiateTranslation(), gem5::o3::LSQ::SplitDataRequest::initiateTranslation(), gem5::o3::LSQ::UnsquashableDirectRequest::initiateTranslation(), and setStateToFault().

◆ setStateToFault()

void gem5::o3::LSQ::LSQRequest::setStateToFault ( )

inline

Definition at line 530 of file lsq.hh.

References Fault, and setState().

Referenced by gem5::o3::LSQUnit::checkSnoop().

◆ setVirt()

void gem5::o3::LSQ::LSQRequest::setVirt	(	Addr	vaddr,
		unsigned	size,
		Request::Flags	flags_,
		RequestorID	requestor_id,
		Addr	pc )

inline

Set up virtual request.

For a previously allocated Request objects.

Definition at line 374 of file lsq.hh.

References gem5::MipsISA::pc, req(), and gem5::MipsISA::vaddr.

◆ squashed()

bool gem5::o3::LSQ::LSQRequest::squashed ( ) const

overrideprotectedvirtual

This function is used by the page table walker to determine if it should translate the a pending request or if the underlying request has been squashed.

@ return Is the instruction that requested this translation squashed?

Reimplemented from gem5::BaseMMU::Translation.

Definition at line 1075 of file lsq.cc.

References _inst.

◆ squashTranslation()

void gem5::o3::LSQ::LSQRequest::squashTranslation ( )

inline

Definition at line 580 of file lsq.hh.

References flags, isReleased(), numInTranslationFragments, and TranslationSquashed.

Referenced by gem5::o3::LSQ::SingleDataRequest::finish(), and gem5::o3::LSQ::SplitDataRequest::finish().

◆ taskId() [1/2]

uint32_t gem5::o3::LSQ::LSQRequest::taskId ( ) const

inline

Definition at line 390 of file lsq.hh.

References _taskId.

◆ taskId() [2/2]

void gem5::o3::LSQ::LSQRequest::taskId ( const uint32_t & v )

inline

Definition at line 383 of file lsq.hh.

References _reqs, _taskId, gem5::MipsISA::r, and gem5::ArmISA::v.

Referenced by gem5::o3::LSQ::pushRequest().

◆ writebackDone()

void gem5::o3::LSQ::LSQRequest::writebackDone ( )

inline

Definition at line 570 of file lsq.hh.

References _numOutstandingPackets, flags, isReleased(), and WritebackDone.

Referenced by gem5::o3::LSQUnit::completeDataAccess().

◆ writebackScheduled()

void gem5::o3::LSQ::LSQRequest::writebackScheduled ( )

inline

Definition at line 563 of file lsq.hh.

References flags, and WritebackScheduled.

Member Data Documentation

◆ _addr

const Addr gem5::o3::LSQ::LSQRequest::_addr

Definition at line 284 of file lsq.hh.

Referenced by gem5::o3::LSQ::SplitDataRequest::buildPackets(), gem5::o3::LSQ::SingleDataRequest::initiateTranslation(), gem5::o3::LSQ::SplitDataRequest::initiateTranslation(), gem5::o3::LSQ::UnsquashableDirectRequest::initiateTranslation(), LSQRequest(), and LSQRequest().

◆ _amo_op

AtomicOpFunctorPtr gem5::o3::LSQ::LSQRequest::_amo_op

Definition at line 289 of file lsq.hh.

Referenced by addReq(), LSQRequest(), and LSQRequest().

◆ _byteEnable

std::vector<bool> gem5::o3::LSQ::LSQRequest::_byteEnable

Definition at line 287 of file lsq.hh.

Referenced by gem5::o3::LSQ::SingleDataRequest::initiateTranslation(), gem5::o3::LSQ::SplitDataRequest::initiateTranslation(), gem5::o3::LSQ::UnsquashableDirectRequest::initiateTranslation(), and gem5::o3::LSQ::pushRequest().

◆ _data

PacketDataPtr gem5::o3::LSQ::LSQRequest::_data

Definition at line 279 of file lsq.hh.

Referenced by LSQRequest(), LSQRequest(), and gem5::o3::LSQ::SplitDataRequest::recvTimingResp().

◆ _fault

std::vector<Fault> gem5::o3::LSQ::LSQRequest::_fault

Definition at line 282 of file lsq.hh.

Referenced by gem5::o3::LSQ::SplitDataRequest::buildPackets(), gem5::o3::LSQ::SingleDataRequest::finish(), gem5::o3::LSQ::SplitDataRequest::finish(), and gem5::o3::LSQ::SplitDataRequest::initiateTranslation().

◆ _flags

const Request::Flags gem5::o3::LSQ::LSQRequest::_flags

Definition at line 286 of file lsq.hh.

Referenced by addReq(), gem5::o3::LSQ::SplitDataRequest::initiateTranslation(), LSQRequest(), and LSQRequest().

◆ _hasStaleTranslation

bool gem5::o3::LSQ::LSQRequest::_hasStaleTranslation

Definition at line 290 of file lsq.hh.

Referenced by hasStaleTranslation(), LSQRequest(), gem5::o3::LSQ::SingleDataRequest::markAsStaleTranslation(), gem5::o3::LSQ::SplitDataRequest::markAsStaleTranslation(), gem5::o3::LSQ::UnsquashableDirectRequest::markAsStaleTranslation(), gem5::o3::LSQ::SingleDataRequest::recvTimingResp(), and gem5::o3::LSQ::SplitDataRequest::recvTimingResp().

◆ _inst

◆ _numOutstandingPackets

uint32_t gem5::o3::LSQ::LSQRequest::_numOutstandingPackets

Definition at line 288 of file lsq.hh.

Referenced by isAnyOutstandingRequest(), LSQRequest(), LSQRequest(), packetReplied(), gem5::o3::LSQUnit::read(), gem5::o3::LSQ::SingleDataRequest::recvTimingResp(), gem5::o3::LSQ::SingleDataRequest::sendPacketToCache(), gem5::o3::LSQ::SplitDataRequest::sendPacketToCache(), and writebackDone().

◆ _packets

std::vector<PacketPtr> gem5::o3::LSQ::LSQRequest::_packets

Definition at line 280 of file lsq.hh.

Referenced by gem5::o3::LSQ::SingleDataRequest::buildPackets(), gem5::o3::LSQ::SplitDataRequest::buildPackets(), mainPacket(), packet(), gem5::o3::LSQ::SingleDataRequest::recvTimingResp(), gem5::o3::LSQ::SplitDataRequest::recvTimingResp(), gem5::o3::LSQ::SingleDataRequest::sendPacketToCache(), gem5::o3::LSQ::SplitDataRequest::sendPacketToCache(), and ~LSQRequest().

◆ _port

LSQUnit& gem5::o3::LSQ::LSQRequest::_port

Definition at line 276 of file lsq.hh.

Referenced by gem5::o3::LSQ::SplitDataRequest::initiateTranslation(), install(), LSQRequest(), LSQRequest(), lsqUnit(), gem5::o3::LSQ::SingleDataRequest::recvTimingResp(), gem5::o3::LSQ::SplitDataRequest::recvTimingResp(), and sendFragmentToTranslation().

◆ _reqs

std::vector<RequestPtr> gem5::o3::LSQ::LSQRequest::_reqs

Definition at line 281 of file lsq.hh.

Referenced by addReq(), gem5::o3::LSQ::SplitDataRequest::buildPackets(), gem5::o3::LSQ::SplitDataRequest::finish(), gem5::o3::LSQ::SplitDataRequest::handleLocalAccess(), gem5::o3::LSQ::SingleDataRequest::initiateTranslation(), gem5::o3::LSQ::SplitDataRequest::initiateTranslation(), gem5::o3::LSQ::UnsquashableDirectRequest::initiateTranslation(), gem5::o3::LSQ::SingleDataRequest::isCacheBlockHit(), gem5::o3::LSQ::SplitDataRequest::isCacheBlockHit(), mainReq(), req(), req(), and taskId().

◆ _res

uint64_t* gem5::o3::LSQ::LSQRequest::_res

Definition at line 283 of file lsq.hh.

Referenced by gem5::o3::LSQ::SingleDataRequest::finish(), gem5::o3::LSQ::SplitDataRequest::finish(), LSQRequest(), and LSQRequest().

◆ _size

const uint32_t gem5::o3::LSQ::LSQRequest::_size

Definition at line 285 of file lsq.hh.

Referenced by gem5::o3::LSQ::SingleDataRequest::initiateTranslation(), gem5::o3::LSQ::SplitDataRequest::initiateTranslation(), gem5::o3::LSQ::UnsquashableDirectRequest::initiateTranslation(), LSQRequest(), LSQRequest(), gem5::o3::LSQUnit::write(), and gem5::o3::LSQUnit::writebackStores().

◆ _state

State gem5::o3::LSQ::LSQRequest::_state

protected

Definition at line 265 of file lsq.hh.

Referenced by isInTranslation(), isMemAccessRequired(), isPartialFault(), isTranslationBlocked(), LSQRequest(), LSQRequest(), gem5::o3::LSQ::SingleDataRequest::markAsStaleTranslation(), gem5::o3::LSQ::SplitDataRequest::markAsStaleTranslation(), and setState().

◆ _taskId

uint32_t gem5::o3::LSQ::LSQRequest::_taskId

Definition at line 278 of file lsq.hh.

Referenced by gem5::o3::LSQ::SingleDataRequest::initiateTranslation(), gem5::o3::LSQ::SplitDataRequest::initiateTranslation(), gem5::o3::LSQ::UnsquashableDirectRequest::initiateTranslation(), taskId(), and taskId().

◆ flags

FlagsType gem5::o3::LSQ::LSQRequest::flags

protected

Definition at line 255 of file lsq.hh.

◆ numInTranslationFragments

uint32_t gem5::o3::LSQ::LSQRequest::numInTranslationFragments

protected

Definition at line 269 of file lsq.hh.

Referenced by gem5::o3::LSQ::SingleDataRequest::finish(), gem5::o3::LSQ::SplitDataRequest::finish(), gem5::o3::LSQ::SplitDataRequest::initiateTranslation(), isAnyOutstandingRequest(), LSQRequest(), sendFragmentToTranslation(), and squashTranslation().

◆ numTranslatedFragments

uint32_t gem5::o3::LSQ::LSQRequest::numTranslatedFragments

protected

Definition at line 268 of file lsq.hh.

Referenced by gem5::o3::LSQ::SingleDataRequest::finish(), gem5::o3::LSQ::SplitDataRequest::finish(), gem5::o3::LSQ::SplitDataRequest::initiateTranslation(), and LSQRequest().

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

cpu/o3/lsq.hh
cpu/o3/lsq.cc

Public Member Functions

Public Attributes

Protected Types

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ FlagsStorage

◆ FlagsType

Member Enumeration Documentation

◆ Flag

◆ State

Constructor & Destructor Documentation

◆ LSQRequest() [1/2]

◆ LSQRequest() [2/2]

◆ ~LSQRequest()

Member Function Documentation

◆ addReq()

◆ buildPackets()

◆ complete()

◆ contextId()

◆ discard()

◆ freeLSQEntry()

◆ getVaddr()

◆ handleLocalAccess()

◆ hasStaleTranslation()

◆ initiateTranslation()

◆ install()

◆ instruction()

◆ isAnyOutstandingRequest()

◆ isAtomic()

◆ isCacheBlockHit()

◆ isComplete()

◆ isDelayed()

◆ isInTranslation()

◆ isLoad()

◆ isMemAccessRequired()

◆ isPartialFault()

◆ isReleased()

◆ isSent()

◆ isSplit()

◆ isTranslationBlocked()

◆ isTranslationComplete()

◆ lsqUnit()

◆ mainPacket()

◆ mainReq()

◆ markAsStaleTranslation()

◆ markDelayed()

◆ name()

◆ needWBToRegister()

◆ packet()

◆ packetNotSent()

◆ packetReplied()

◆ packetSent()

◆ recvTimingResp()

◆ release()

◆ req() [1/2]

◆ req() [2/2]

◆ sendFragmentToTranslation()

◆ sendPacketToCache()

◆ setContext()

◆ setState()

◆ setStateToFault()

◆ setVirt()

◆ squashed()

◆ squashTranslation()

◆ taskId() [1/2]

◆ taskId() [2/2]

◆ writebackDone()

◆ writebackScheduled()

Member Data Documentation

◆ _addr

◆ _amo_op

◆ _byteEnable

◆ _data

◆ _fault

◆ _flags

◆ _hasStaleTranslation

◆ _inst

◆ _numOutstandingPackets