Memory operation metadata. More...

#include <lsq.hh>

Inheritance diagram for LSQ< Impl >::LSQRequest:

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

virtual void	sendPacketToCache ()=0

virtual void	buildPackets ()=0

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

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

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

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

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. More...

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

void	packetReplied ()

void	writebackScheduled ()

void	writebackDone ()

void	squashTranslation ()

void	complete ()

virtual std::string	name () const


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

const DynInstPtr &	instruction ()

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

void	taskId (const uint32_t &v)

uint32_t	taskId () const

RequestPtr	request (int idx=0)

const RequestPtr	request (int idx=0) const

Addr	getVaddr (int idx=0) const

virtual void	initiateTranslation ()=0

PacketPtr	packet (int idx=0)

virtual PacketPtr	mainPacket ()

virtual RequestPtr	mainRequest ()

void	senderState (LSQSenderState *st)

const LSQSenderState *	senderState () const

void	discardSenderState ()
	Mark senderState as discarded. More...

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

bool	isSplit () const

Public Member Functions inherited from BaseTLB::Translation
virtual	~Translation ()

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

Public Attributes
LSQUnit &	_port

const DynInstPtr	_inst

uint32_t	_taskId

PacketDataPtr	_data

std::vector< PacketPtr >	_packets

std::vector< RequestPtr >	_requests

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

Protected Types
enum	Flag : FlagsStorage { IsLoad = 0x00000001, WbStore = 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	State { State::NotIssued, State::Translation, State::Request, State::Fault, State::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. More...

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	isLoad () const

bool	isAtomic () const

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

virtual 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. More...

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

void	release (Flag reason)
	Release the LSQRequest. More...

void	addRequest (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`. More...

virtual	~LSQRequest ()
	Destructor. More...

Protected Attributes
FlagsType	flags

State	_state

LSQSenderState *	_senderState

uint32_t	numTranslatedFragments

uint32_t	numInTranslationFragments

uint32_t	_entryIdx
	LQ/SQ entry idx. More...

Detailed Description

template<class Impl>
class LSQ< Impl >::LSQRequest

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. It is also used by the LSQSenderState. 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 | | | +-----------------—+ | | | | +-----------------—+ | | | senderState owns | | +->| onRecvTimingResp | | | free resources | | +-----------------—+ | | +-------------------—+ | | self owned (Trans) | +-->| on TranslationFinish | | free resources | +-------------------—+

Definition at line 236 of file lsq.hh.

Member Typedef Documentation

◆ FlagsStorage

template<class Impl >

typedef uint32_t LSQ< Impl >::LSQRequest::FlagsStorage

protected

Definition at line 239 of file lsq.hh.

◆ FlagsType

template<class Impl >

typedef ::Flags<FlagsStorage> LSQ< Impl >::LSQRequest::FlagsType

protected

Definition at line 240 of file lsq.hh.

Member Enumeration Documentation

◆ Flag

template<class Impl >

enum LSQ::LSQRequest::Flag : FlagsStorage

protected

Enumerator
IsLoad
WbStore	True if this is 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 242 of file lsq.hh.

◆ State

template<class Impl >

enum LSQ::LSQRequest::State

strongprotected

Enumerator
NotIssued
Translation
Request
Fault
PartialFault

Definition at line 271 of file lsq.hh.

Constructor & Destructor Documentation

◆ LSQRequest() [1/2]

template<class Impl >

LSQ< Impl >::LSQRequest::LSQRequest	(	LSQUnit *	port,
		const DynInstPtr &	inst,
		bool	isLoad
	)

inlineprotected

Definition at line 309 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_inst, LSQ< Impl >::LSQRequest::flags, LSQ< Impl >::LSQRequest::install(), LSQ< Impl >::LSQRequest::isLoad(), and Flags< T >::set().

◆ LSQRequest() [2/2]

template<class Impl >

LSQ< Impl >::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`
	)

inlineprotected

Definition at line 321 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_inst, LSQ< Impl >::LSQRequest::flags, LSQ< Impl >::LSQRequest::install(), LSQ< Impl >::LSQRequest::isLoad(), and Flags< T >::set().

◆ ~LSQRequest()

template<class Impl >

virtual LSQ< Impl >::LSQRequest::~LSQRequest ( )

inlineprotectedvirtual

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 429 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_inst, LSQ< Impl >::LSQRequest::_packets, LSQ< Impl >::LSQRequest::_senderState, LSQ< Impl >::LSQRequest::isAnyOutstandingRequest(), and MipsISA::r.

Member Function Documentation

◆ addRequest()

template<class Impl >

void LSQ< Impl >::LSQRequest::addRequest	(	Addr	addr,
		unsigned	size,
		const std::vector< bool > &	byte_enable
	)

inlineprotected

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 the mask is empty or if there is at least an active element in it.

Definition at line 412 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_amo_op, LSQ< Impl >::LSQRequest::_flags, LSQ< Impl >::LSQRequest::_inst, LSQ< Impl >::LSQRequest::_requests, X86ISA::addr, isAnyActiveElement(), and LSQ< Impl >::LSQRequest::request().

Referenced by LSQ< Impl >::HtmCmdRequest::HtmCmdRequest().

◆ buildPackets()

template<class Impl >

virtual void LSQ< Impl >::LSQRequest::buildPackets ( )

pure virtual

Implemented in LSQ< Impl >::SplitDataRequest, and LSQ< Impl >::SingleDataRequest.

◆ complete()

template<class Impl >

void LSQ< Impl >::LSQRequest::complete ( )

inline

Definition at line 689 of file lsq.hh.

References Complete, LSQ< Impl >::LSQRequest::flags, and Flags< T >::set().

◆ discard()

template<class Impl >

void LSQ< Impl >::LSQRequest::discard ( )

inline

The request is discarded (e.g.

partial store-load forwarding)

Definition at line 646 of file lsq.hh.

References LSQ< Impl >::LSQRequest::release().

◆ discardSenderState()

template<class Impl >

void LSQ< Impl >::LSQRequest::discardSenderState ( )

inline

Mark senderState as discarded.

This will cause to discard response packets from the cache.

Definition at line 524 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_senderState, and LSQ< Impl >::LSQSenderState::deleteRequest().

◆ freeLSQEntry()

template<class Impl >

void LSQ< Impl >::LSQRequest::freeLSQEntry ( )

inline

The LSQ entry is cleared.

Definition at line 637 of file lsq.hh.

References LSQ< Impl >::LSQRequest::release().

◆ getVaddr()

template<class Impl >

Addr LSQ< Impl >::LSQRequest::getVaddr ( int idx = 0 ) const

inline

Definition at line 484 of file lsq.hh.

References LSQ< Impl >::LSQRequest::request().

Referenced by LSQ< Impl >::pushRequest().

◆ handleLocalAccess()

template<class Impl >

virtual Cycles LSQ< Impl >::LSQRequest::handleLocalAccess	(	ThreadContext *	thread,
		PacketPtr	pkt
	)

pure virtual

Memory mapped IPR accesses.

Implemented in LSQ< Impl >::SplitDataRequest, and LSQ< Impl >::SingleDataRequest.

◆ initiateTranslation()

template<class Impl >

virtual void LSQ< Impl >::LSQRequest::initiateTranslation ( )

pure virtual

Implemented in LSQ< Impl >::SplitDataRequest, LSQ< Impl >::HtmCmdRequest, and LSQ< Impl >::SingleDataRequest.

Referenced by LSQ< Impl >::pushRequest().

◆ install()

template<class Impl >

void LSQ< Impl >::LSQRequest::install ( )

inlineprotected

Install the request in the LQ/SQ.

Definition at line 355 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_inst, LSQ< Impl >::LSQRequest::_port, LSQ< Impl >::LSQRequest::isLoad(), LSQUnit< Impl >::loadQueue, and LSQUnit< Impl >::storeQueue.

Referenced by LSQ< Impl >::LSQRequest::LSQRequest().

◆ instruction()

template<class Impl >

const DynInstPtr& LSQ< Impl >::LSQRequest::instruction ( )

inline

Definition at line 452 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_inst.

◆ isAnyOutstandingRequest()

template<class Impl >

bool LSQ< Impl >::LSQRequest::isAnyOutstandingRequest ( )

inline

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

Definition at line 534 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_numOutstandingPackets, LSQ< Impl >::LSQRequest::flags, Flags< T >::isSet(), and LSQ< Impl >::LSQRequest::numInTranslationFragments.

Referenced by LSQ< Impl >::LSQRequest::release(), and LSQ< Impl >::LSQRequest::~LSQRequest().

◆ isAtomic()

template<class Impl >

bool LSQ< Impl >::LSQRequest::isAtomic ( ) const

inlineprotected

Definition at line 349 of file lsq.hh.

References LSQ< Impl >::LSQRequest::flags, and Flags< T >::isSet().

◆ isCacheBlockHit()

template<class Impl >

virtual bool LSQ< Impl >::LSQRequest::isCacheBlockHit	(	Addr	blockAddr,
		Addr	cacheBlockMask
	)

pure virtual

Test if the request accesses a particular cache line.

Implemented in LSQ< Impl >::SplitDataRequest, and LSQ< Impl >::SingleDataRequest.

◆ isComplete()

template<class Impl >

bool LSQ< Impl >::LSQRequest::isComplete ( )

inline

Definition at line 582 of file lsq.hh.

References Complete, LSQ< Impl >::LSQRequest::flags, and Flags< T >::isSet().

◆ isDelayed()

template<class Impl >

bool LSQ< Impl >::LSQRequest::isDelayed ( )

inlineprotected

Definition at line 290 of file lsq.hh.

References LSQ< Impl >::LSQRequest::flags, and Flags< T >::isSet().

◆ isInTranslation()

template<class Impl >

bool LSQ< Impl >::LSQRequest::isInTranslation ( )

inline

Definition at line 588 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_state, and LSQ< Impl >::LSQRequest::Translation.

Referenced by LSQ< Impl >::LSQRequest::isTranslationComplete().

◆ isLoad()

template<class Impl >

bool LSQ< Impl >::LSQRequest::isLoad ( ) const

inlineprotected

Definition at line 343 of file lsq.hh.

References LSQ< Impl >::LSQRequest::flags, and Flags< T >::isSet().

Referenced by LSQ< Impl >::LSQRequest::install(), LSQ< Impl >::LSQRequest::isMemAccessRequired(), and LSQ< Impl >::LSQRequest::LSQRequest().

◆ isMemAccessRequired()

template<class Impl >

bool LSQ< Impl >::LSQRequest::isMemAccessRequired ( )

inline

Definition at line 621 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_state, LSQ< Impl >::LSQRequest::isLoad(), LSQ< Impl >::LSQRequest::isPartialFault(), and LSQ< Impl >::LSQRequest::Request.

Referenced by LSQ< Impl >::pushRequest().

◆ isPartialFault()

template<class Impl >

bool LSQ< Impl >::LSQRequest::isPartialFault ( )

inline

Definition at line 615 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_state, and LSQ< Impl >::LSQRequest::PartialFault.

Referenced by LSQ< Impl >::LSQRequest::isMemAccessRequired().

◆ isReleased()

template<class Impl >

bool LSQ< Impl >::LSQRequest::isReleased ( )

inlineprotected

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 377 of file lsq.hh.

References LSQ< Impl >::LSQRequest::flags, and Flags< T >::isSet().

Referenced by LSQ< Impl >::LSQRequest::packetReplied(), LSQ< Impl >::LSQRequest::squashTranslation(), and LSQ< Impl >::LSQRequest::writebackDone().

◆ isSent()

template<class Impl >

bool LSQ< Impl >::LSQRequest::isSent ( )

inline

Definition at line 609 of file lsq.hh.

References LSQ< Impl >::LSQRequest::flags, and Flags< T >::isSet().

◆ isSplit()

template<class Impl >

bool LSQ< Impl >::LSQRequest::isSplit ( ) const

inline

Definition at line 543 of file lsq.hh.

References LSQ< Impl >::LSQRequest::flags, and Flags< T >::isSet().

◆ isTranslationBlocked()

template<class Impl >

bool LSQ< Impl >::LSQRequest::isTranslationBlocked ( )

inline

Definition at line 601 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_state, LSQ< Impl >::LSQRequest::flags, Flags< T >::isSet(), and LSQ< Impl >::LSQRequest::Translation.

◆ isTranslationComplete()

template<class Impl >

bool LSQ< Impl >::LSQRequest::isTranslationComplete ( )

inline

Definition at line 594 of file lsq.hh.

References LSQ< Impl >::LSQRequest::flags, LSQ< Impl >::LSQRequest::isInTranslation(), and Flags< T >::isSet().

Referenced by LSQ< Impl >::pushRequest().

◆ lsqUnit()

template<class Impl >

LSQUnit* LSQ< Impl >::LSQRequest::lsqUnit ( )

inlineprotected

Definition at line 308 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_port.

◆ mainPacket()

template<class Impl >

virtual PacketPtr LSQ< Impl >::LSQRequest::mainPacket ( )

inlinevirtual

Reimplemented in LSQ< Impl >::SplitDataRequest.

Definition at line 490 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_packets, and LSQ< Impl >::LSQRequest::packet().

◆ mainRequest()

template<class Impl >

virtual RequestPtr LSQ< Impl >::LSQRequest::mainRequest ( )

inlinevirtual

Reimplemented in LSQ< Impl >::SplitDataRequest.

Definition at line 497 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_requests, and LSQ< Impl >::LSQRequest::request().

◆ markDelayed()

template<class Impl >

void LSQ< Impl >::LSQRequest::markDelayed ( )

inlineoverrideprotectedvirtual

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

Implements BaseTLB::Translation.

Definition at line 289 of file lsq.hh.

References LSQ< Impl >::LSQRequest::flags, and Flags< T >::set().

◆ name()

template<class Impl >

virtual std::string LSQ< Impl >::LSQRequest::name ( ) const

inlinevirtual

Reimplemented in LSQ< Impl >::SplitDataRequest, LSQ< Impl >::HtmCmdRequest, and LSQ< Impl >::SingleDataRequest.

Definition at line 694 of file lsq.hh.

◆ packet()

template<class Impl >

PacketPtr LSQ< Impl >::LSQRequest::packet ( int idx = 0 )

inline

Definition at line 487 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_packets.

Referenced by LSQ< Impl >::LSQRequest::mainPacket().

◆ packetNotSent()

template<class Impl >

void LSQ< Impl >::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 574 of file lsq.hh.

References Flags< T >::clear(), LSQ< Impl >::LSQRequest::flags, and Flags< T >::set().

◆ packetReplied()

template<class Impl >

void LSQ< Impl >::LSQRequest::packetReplied ( )

inline

Definition at line 652 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_numOutstandingPackets, and LSQ< Impl >::LSQRequest::isReleased().

◆ packetSent()

template<class Impl >

void LSQ< Impl >::LSQRequest::packetSent ( )

inline

Update the status to reflect that a packet was sent.

Definition at line 565 of file lsq.hh.

References LSQ< Impl >::LSQRequest::flags, and Flags< T >::set().

◆ recvTimingResp()

template<class Impl >

virtual bool LSQ< Impl >::LSQRequest::recvTimingResp ( PacketPtr pkt )

pure virtual

Implemented in LSQ< Impl >::SplitDataRequest, and LSQ< Impl >::SingleDataRequest.

◆ release()

template<class Impl >

void LSQ< Impl >::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 392 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_senderState, LSQ< Impl >::LSQSenderState::deleteRequest(), LSQ< Impl >::LSQRequest::flags, LSQ< Impl >::LSQRequest::isAnyOutstandingRequest(), and Flags< T >::set().

Referenced by LSQ< Impl >::LSQRequest::discard(), and LSQ< Impl >::LSQRequest::freeLSQEntry().

◆ request() [1/2]

template<class Impl >

RequestPtr LSQ< Impl >::LSQRequest::request ( int idx = 0 )

inline

Definition at line 476 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_requests.

Referenced by LSQ< Impl >::LSQRequest::addRequest(), LSQ< Impl >::LSQRequest::getVaddr(), LSQ< Impl >::LSQRequest::mainRequest(), LSQ< Impl >::pushRequest(), LSQ< Impl >::read(), LSQ< Impl >::LSQRequest::setContext(), LSQ< Impl >::LSQRequest::setVirt(), and LSQ< Impl >::write().

◆ request() [2/2]

template<class Impl >

const RequestPtr LSQ< Impl >::LSQRequest::request ( int idx = 0 ) const

inline

Definition at line 479 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_requests.

◆ senderState() [1/2]

template<class Impl >

const LSQSenderState* LSQ< Impl >::LSQRequest::senderState ( ) const

inline

Definition at line 514 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_senderState.

◆ senderState() [2/2]

template<class Impl >

void LSQ< Impl >::LSQRequest::senderState ( LSQSenderState * st )

inline

Definition at line 504 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_packets, LSQ< Impl >::LSQRequest::_senderState, and ArmISA::st.

◆ sendFragmentToTranslation()

template<class Impl >

void LSQ< Impl >::LSQRequest::sendFragmentToTranslation ( int i )

Definition at line 952 of file lsq_impl.hh.

References ArmISA::i, BaseTLB::Read, and BaseTLB::Write.

◆ sendPacketToCache()

template<class Impl >

virtual void LSQ< Impl >::LSQRequest::sendPacketToCache ( )

pure virtual

Implemented in LSQ< Impl >::SplitDataRequest, and LSQ< Impl >::SingleDataRequest.

◆ setContext()

template<class Impl >

void LSQ< Impl >::LSQRequest::setContext ( const ContextID & context_id )

inline

Convenience getters/setters.

Set up Context numbers.

Definition at line 446 of file lsq.hh.

References LSQ< Impl >::LSQRequest::request().

◆ setState()

template<class Impl >

void LSQ< Impl >::LSQRequest::setState ( const State & newState )

inlineprotected

Definition at line 281 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_state.

Referenced by LSQ< Impl >::SingleDataRequest::finish(), LSQ< Impl >::HtmCmdRequest::HtmCmdRequest(), and LSQ< Impl >::LSQRequest::setStateToFault().

◆ setStateToFault()

template<class Impl >

void LSQ< Impl >::LSQRequest::setStateToFault ( )

inline

Definition at line 628 of file lsq.hh.

References LSQ< Impl >::LSQRequest::Fault, and LSQ< Impl >::LSQRequest::setState().

◆ setVirt()

template<class Impl >

void LSQ< Impl >::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 461 of file lsq.hh.

References MipsISA::pc, LSQ< Impl >::LSQRequest::request(), and MipsISA::vaddr.

◆ squashed()

template<class Impl >

virtual bool LSQ< Impl >::LSQRequest::squashed ( ) const

inlineoverrideprotectedvirtual

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 BaseTLB::Translation.

Definition at line 366 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_inst.

◆ squashTranslation()

template<class Impl >

void LSQ< Impl >::LSQRequest::squashTranslation ( )

inline

Definition at line 678 of file lsq.hh.

References LSQ< Impl >::LSQRequest::flags, LSQ< Impl >::LSQRequest::isReleased(), LSQ< Impl >::LSQRequest::numInTranslationFragments, and Flags< T >::set().

Referenced by LSQ< Impl >::SingleDataRequest::finish().

◆ taskId() [1/2]

template<class Impl >

uint32_t LSQ< Impl >::LSQRequest::taskId ( ) const

inline

Definition at line 475 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_taskId.

◆ taskId() [2/2]

template<class Impl >

void LSQ< Impl >::LSQRequest::taskId ( const uint32_t & v )

inline

Definition at line 468 of file lsq.hh.

References LSQ< Impl >::LSQRequest::_requests, LSQ< Impl >::LSQRequest::_taskId, MipsISA::r, and ArmISA::v.

Referenced by LSQ< Impl >::pushRequest().

◆ writebackDone()

template<class Impl >

void LSQ< Impl >::LSQRequest::writebackDone ( )

inline

Definition at line 668 of file lsq.hh.

References LSQ< Impl >::LSQRequest::flags, LSQ< Impl >::LSQRequest::isReleased(), and Flags< T >::set().

Referenced by LSQ< Impl >::LSQSenderState::writebackDone().

◆ writebackScheduled()

template<class Impl >

void LSQ< Impl >::LSQRequest::writebackScheduled ( )

inline

Definition at line 661 of file lsq.hh.

References LSQ< Impl >::LSQRequest::flags, Flags< T >::isSet(), and Flags< T >::set().

Member Data Documentation

◆ _addr

template<class Impl >

const Addr LSQ< Impl >::LSQRequest::_addr

Definition at line 301 of file lsq.hh.

Referenced by LSQ< Impl >::HtmCmdRequest::HtmCmdRequest().

◆ _amo_op

template<class Impl >

AtomicOpFunctorPtr LSQ< Impl >::LSQRequest::_amo_op

Definition at line 306 of file lsq.hh.

Referenced by LSQ< Impl >::LSQRequest::addRequest().

◆ _byteEnable

template<class Impl >

std::vector<bool> LSQ< Impl >::LSQRequest::_byteEnable

Definition at line 304 of file lsq.hh.

Referenced by LSQ< Impl >::HtmCmdRequest::HtmCmdRequest(), and LSQ< Impl >::pushRequest().

◆ _data

template<class Impl >

PacketDataPtr LSQ< Impl >::LSQRequest::_data

Definition at line 296 of file lsq.hh.

◆ _entryIdx

template<class Impl >

uint32_t LSQ< Impl >::LSQRequest::_entryIdx

protected

LQ/SQ entry idx.

Definition at line 287 of file lsq.hh.

◆ _fault

template<class Impl >

std::vector<Fault> LSQ< Impl >::LSQRequest::_fault

Definition at line 299 of file lsq.hh.

Referenced by LSQ< Impl >::SingleDataRequest::finish().

◆ _flags

template<class Impl >

const Request::Flags LSQ< Impl >::LSQRequest::_flags

Definition at line 303 of file lsq.hh.

Referenced by LSQ< Impl >::LSQRequest::addRequest().

◆ _inst

template<class Impl >

const DynInstPtr LSQ< Impl >::LSQRequest::_inst

Definition at line 294 of file lsq.hh.

Referenced by LSQ< Impl >::LSQRequest::addRequest(), LSQ< Impl >::SingleDataRequest::finish(), LSQ< Impl >::HtmCmdRequest::HtmCmdRequest(), LSQ< Impl >::LSQRequest::install(), LSQ< Impl >::LSQRequest::instruction(), LSQ< Impl >::LSQRequest::LSQRequest(), LSQ< Impl >::LSQRequest::squashed(), and LSQ< Impl >::LSQRequest::~LSQRequest().

◆ _numOutstandingPackets

template<class Impl >

uint32_t LSQ< Impl >::LSQRequest::_numOutstandingPackets

Definition at line 305 of file lsq.hh.

Referenced by LSQ< Impl >::LSQRequest::isAnyOutstandingRequest(), and LSQ< Impl >::LSQRequest::packetReplied().

◆ _packets

template<class Impl >

std::vector<PacketPtr> LSQ< Impl >::LSQRequest::_packets

Definition at line 297 of file lsq.hh.

Referenced by LSQ< Impl >::LSQRequest::mainPacket(), LSQ< Impl >::LSQRequest::packet(), LSQ< Impl >::LSQRequest::senderState(), and LSQ< Impl >::LSQRequest::~LSQRequest().

◆ _port

template<class Impl >

LSQUnit& LSQ< Impl >::LSQRequest::_port

Definition at line 293 of file lsq.hh.

Referenced by LSQ< Impl >::LSQRequest::install(), and LSQ< Impl >::LSQRequest::lsqUnit().

◆ _requests

template<class Impl >

std::vector<RequestPtr> LSQ< Impl >::LSQRequest::_requests

Definition at line 298 of file lsq.hh.

Referenced by LSQ< Impl >::LSQRequest::addRequest(), LSQ< Impl >::HtmCmdRequest::HtmCmdRequest(), LSQ< Impl >::SingleDataRequest::isCacheBlockHit(), LSQ< Impl >::LSQRequest::mainRequest(), LSQ< Impl >::LSQRequest::request(), and LSQ< Impl >::LSQRequest::taskId().

◆ _res

template<class Impl >

uint64_t* LSQ< Impl >::LSQRequest::_res

Definition at line 300 of file lsq.hh.

Referenced by LSQ< Impl >::SingleDataRequest::finish().

◆ _senderState

template<class Impl >

LSQSenderState* LSQ< Impl >::LSQRequest::_senderState

protected

Definition at line 280 of file lsq.hh.

Referenced by LSQ< Impl >::LSQRequest::discardSenderState(), LSQ< Impl >::LSQRequest::release(), LSQ< Impl >::LSQRequest::senderState(), and LSQ< Impl >::LSQRequest::~LSQRequest().

◆ _size

template<class Impl >

const uint32_t LSQ< Impl >::LSQRequest::_size

Definition at line 302 of file lsq.hh.

Referenced by LSQ< Impl >::HtmCmdRequest::HtmCmdRequest().

◆ _state

template<class Impl >

State LSQ< Impl >::LSQRequest::_state

protected

Definition at line 279 of file lsq.hh.

Referenced by LSQ< Impl >::LSQRequest::isInTranslation(), LSQ< Impl >::LSQRequest::isMemAccessRequired(), LSQ< Impl >::LSQRequest::isPartialFault(), LSQ< Impl >::LSQRequest::isTranslationBlocked(), and LSQ< Impl >::LSQRequest::setState().

◆ _taskId

template<class Impl >

uint32_t LSQ< Impl >::LSQRequest::_taskId

Definition at line 295 of file lsq.hh.

Referenced by LSQ< Impl >::HtmCmdRequest::HtmCmdRequest(), and LSQ< Impl >::LSQRequest::taskId().

◆ flags

template<class Impl >

FlagsType LSQ< Impl >::LSQRequest::flags

protected

Definition at line 269 of file lsq.hh.

◆ numInTranslationFragments

template<class Impl >

uint32_t LSQ< Impl >::LSQRequest::numInTranslationFragments

protected

Definition at line 284 of file lsq.hh.

Referenced by LSQ< Impl >::SingleDataRequest::finish(), LSQ< Impl >::LSQRequest::isAnyOutstandingRequest(), and LSQ< Impl >::LSQRequest::squashTranslation().

◆ numTranslatedFragments

template<class Impl >

uint32_t LSQ< Impl >::LSQRequest::numTranslatedFragments

protected

Definition at line 283 of file lsq.hh.

Referenced by LSQ< Impl >::SingleDataRequest::finish().

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

cpu/o3/lsq.hh
cpu/o3/lsq_impl.hh

Public Member Functions

Public Attributes

Protected Types

Protected Member Functions

Protected Attributes

Detailed Description

template<class Impl> class LSQ< Impl >::LSQRequest

Member Typedef Documentation

◆ FlagsStorage

◆ FlagsType

Member Enumeration Documentation

◆ Flag

◆ State

Constructor & Destructor Documentation

◆ LSQRequest() [1/2]

◆ LSQRequest() [2/2]

◆ ~LSQRequest()

Member Function Documentation

◆ addRequest()

◆ buildPackets()

◆ complete()

◆ discard()

◆ discardSenderState()

◆ freeLSQEntry()

◆ getVaddr()

◆ handleLocalAccess()

◆ initiateTranslation()

◆ install()

◆ instruction()

◆ isAnyOutstandingRequest()

◆ isAtomic()

◆ isCacheBlockHit()

◆ isComplete()

◆ isDelayed()

◆ isInTranslation()

◆ isLoad()

◆ isMemAccessRequired()

◆ isPartialFault()

◆ isReleased()

◆ isSent()

◆ isSplit()

◆ isTranslationBlocked()

◆ isTranslationComplete()

◆ lsqUnit()

◆ mainPacket()

◆ mainRequest()

◆ markDelayed()

◆ name()

◆ packet()

◆ packetNotSent()

◆ packetReplied()

◆ packetSent()

◆ recvTimingResp()

◆ release()

◆ request() [1/2]

◆ request() [2/2]

◆ senderState() [1/2]

◆ senderState() [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

◆ _entryIdx

◆ _fault

◆ _flags

◆ _inst

◆ _numOutstandingPackets

template<class Impl>
class LSQ< Impl >::LSQRequest