#include <lsq.hh>

Inheritance diagram for Minor::LSQ::SplitDataRequest:

Public Member Functions
	SplitDataRequest (LSQ &port_, MinorDynInstPtr inst_, bool isLoad_, PacketDataPtr data_=NULL, uint64_t *res_=NULL)

	~SplitDataRequest ()

void	makeFragmentRequests ()
	Make all the Requests for this transfer's fragments so that those requests can be sent for address translation. More...

void	makeFragmentPackets ()
	Make the packets to go with the requests so they can be sent to the memory system. More...

void	startAddrTranslation ()
	Start a loop of do { sendNextFragmentToTranslation ; translateTiming ; finish } while (numTranslatedFragments != numFragments) to complete all this requests' fragments' address translations. More...

PacketPtr	getHeadPacket ()
	Get the head packet as counted by numIssuedFragments. More...

void	stepToNextPacket ()
	Step on numIssuedFragments. More...

bool	hasPacketsInMemSystem ()
	True if this request has any issued packets in the memory system and so can't be interrupted until it gets responses. More...

bool	sentAllPackets ()
	Have we stepped past the end of fragmentPackets? More...

void	retireResponse (PacketPtr packet_)
	For loads, paste the response data into the main response packet. More...

void	sendNextFragmentToTranslation ()
	Part of the address translation loop, see startAddTranslation. More...

Public Member Functions inherited from Minor::LSQ::LSQRequest
	LSQRequest (LSQ &port_, MinorDynInstPtr inst_, bool isLoad_, PacketDataPtr data_=NULL, uint64_t *res_=NULL)

virtual	~LSQRequest ()

void	makePacket ()
	Make a packet to use with the memory transaction. More...

bool	skippedMemAccess ()
	Was no memory access attempted for this request? More...

void	setSkipped ()
	Set this request as having been skipped before a memory transfer was attempt. More...

AddrRangeCoverage	containsAddrRangeOf (LSQRequest *other_request)
	Does this request's address range fully cover the range of other_request? More...

virtual bool	isBarrier ()
	Is this a request a barrier? More...

bool	needsToBeSentToStoreBuffer ()
	This request, once processed by the requests/transfers queues, will need to go to the store buffer. More...

void	setState (LSQRequestState new_state)
	Set state and output trace output. More...

bool	isComplete () const
	Has this request been completed. More...

void	reportData (std::ostream &os) const
	MinorTrace report interface. More...

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

virtual bool	squashed () const
	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...

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

virtual	~SenderState ()

Protected Member Functions
void	finish (const Fault &fault_, const RequestPtr &request_, ThreadContext *tc, BaseTLB::Mode mode)
	TLB response interface. More...

Protected Member Functions inherited from Minor::LSQ::LSQRequest
void	markDelayed ()
	BaseTLB::Translation interface. More...

void	tryToSuppressFault ()
	Instructions may want to suppress translation faults (e.g. More...

void	disableMemAccess ()

void	completeDisabledMemAccess ()

Protected Attributes
EventFunctionWrapper	translationEvent
	Event to step between translations. More...

unsigned int	numFragments
	Number of fragments this request is split into. More...

unsigned int	numInTranslationFragments
	Number of fragments in the address translation mechanism. More...

unsigned int	numTranslatedFragments
	Number of fragments that have completed address translation, (numTranslatedFragments + numInTranslationFragments) <= numFragments. More...

unsigned int	numIssuedFragments
	Number of fragments already issued (<= numFragments) More...

unsigned int	numRetiredFragments
	Number of fragments retired back to this request. More...

std::vector< RequestPtr >	fragmentRequests
	Fragment Requests corresponding to the address ranges of each fragment. More...

std::vector< Packet * >	fragmentPackets
	Packets matching fragmentRequests to issue fragments to memory. More...

Additional Inherited Members
Public Types inherited from Minor::LSQ::LSQRequest
enum	LSQRequestState { NotIssued, InTranslation, Translated, Failed, RequestIssuing, StoreToStoreBuffer, RequestNeedsRetry, StoreInStoreBuffer, StoreBufferIssuing, StoreBufferNeedsRetry, Complete }

Static Public Member Functions inherited from Minor::LSQ::LSQRequest
static AddrRangeCoverage	containsAddrRangeOf (Addr req1_addr, unsigned int req1_size, Addr req2_addr, unsigned int req2_size)
	Does address range req1 (req1_addr to req1_addr + req1_size - 1) fully cover, partially cover or not cover at all the range req2. More...

Public Attributes inherited from Minor::LSQ::LSQRequest
LSQ &	port
	Owning port. More...

MinorDynInstPtr	inst
	Instruction which made this request. More...

bool	isLoad
	Load/store indication used for building packet. More...

PacketDataPtr	data
	Dynamically allocated and populated data carried for building write packets. More...

PacketPtr	packet

RequestPtr	request
	The underlying request of this LSQRequest. More...

uint64_t *	res
	Res from pushRequest. More...

bool	skipped
	Was skipped. More...

bool	issuedToMemory
	This in an access other than a normal cacheable load that's visited the memory system. More...

bool	isTranslationDelayed
	Address translation is delayed due to table walk. More...

LSQRequestState	state

Public Attributes inherited from Packet::SenderState
SenderState *	predecessor

Detailed Description

Definition at line 383 of file lsq.hh.

Constructor & Destructor Documentation

◆ SplitDataRequest()

LSQ< Impl >::SplitDataRequest::SplitDataRequest	(	LSQ &	port_,
		MinorDynInstPtr	inst_,
		bool	isLoad_,
		PacketDataPtr	data_ = `NULL`,
		uint64_t *	res_ = `NULL`
	)

Definition at line 393 of file lsq.cc.

References fragmentPackets, fragmentRequests, numFragments, numInTranslationFragments, numIssuedFragments, numRetiredFragments, numTranslatedFragments, and sendNextFragmentToTranslation().

◆ ~SplitDataRequest()

LSQ< Impl >::SplitDataRequest::~SplitDataRequest ( )

Definition at line 410 of file lsq.cc.

References fragmentPackets, and ArmISA::i.

Member Function Documentation

◆ finish()

void LSQ< Impl >::SplitDataRequest::finish	(	const Fault &	fault_,
		const RequestPtr &	request_,
		ThreadContext *	tc,
		BaseTLB::Mode	mode
	)

protectedvirtual

◆ getHeadPacket()

PacketPtr LSQ< Impl >::SplitDataRequest::getHeadPacket ( )

virtual

Get the head packet as counted by numIssuedFragments.

Implements Minor::LSQ::LSQRequest.

Definition at line 616 of file lsq.cc.

References fragmentPackets, numIssuedFragments, and numTranslatedFragments.

◆ hasPacketsInMemSystem()

bool Minor::LSQ::SplitDataRequest::hasPacketsInMemSystem ( )

inlinevirtual

True if this request has any issued packets in the memory system and so can't be interrupted until it gets responses.

Implements Minor::LSQ::LSQRequest.

Definition at line 447 of file lsq.hh.

Referenced by retireResponse().

◆ makeFragmentPackets()

void LSQ< Impl >::SplitDataRequest::makeFragmentPackets ( )

Make the packets to go with the requests so they can be sent to the memory system.

Definition at line 541 of file lsq.cc.

References Minor::LSQ::LSQRequest::data, DPRINTFS, fragment, fragmentPackets, fragmentRequests, Minor::LSQ::LSQRequest::inst, Minor::LSQ::LSQRequest::isLoad, Minor::LSQ::LSQRequest::makePacket(), Minor::makePacketForRequest(), numTranslatedFragments, Minor::LSQ::LSQRequest::port, and Minor::LSQ::LSQRequest::request.

◆ makeFragmentRequests()

void LSQ< Impl >::SplitDataRequest::makeFragmentRequests ( )

Make all the Requests for this transfer's fragments so that those requests can be sent for address translation.

Definition at line 420 of file lsq.cc.

References addrBlockOffset(), DPRINTFS, fragment, fragmentRequests, isAnyActiveElement(), Minor::LSQ::lineWidth, M5_VAR_USED, numFragments, Minor::LSQ::LSQRequest::port, and Minor::LSQ::LSQRequest::request.

Referenced by startAddrTranslation().

◆ retireResponse()

void LSQ< Impl >::SplitDataRequest::retireResponse ( PacketPtr packet_ )

virtual

For loads, paste the response data into the main response packet.

Implements Minor::LSQ::LSQRequest.

Definition at line 632 of file lsq.cc.

◆ sendNextFragmentToTranslation()

void LSQ< Impl >::SplitDataRequest::sendNextFragmentToTranslation ( )

Part of the address translation loop, see startAddTranslation.

Definition at line 709 of file lsq.cc.

References Minor::LSQ::cpu, DPRINTFS, fragmentRequests, BaseCPU::getContext(), ThreadContext::getDTBPtr(), Minor::LSQ::LSQRequest::inst, Minor::LSQ::LSQRequest::isLoad, Minor::LSQ::numAccessesInDTLB, numInTranslationFragments, numTranslatedFragments, Minor::LSQ::LSQRequest::port, BaseTLB::Read, BaseTLB::translateTiming(), and BaseTLB::Write.

Referenced by SplitDataRequest(), and startAddrTranslation().

◆ sentAllPackets()

bool Minor::LSQ::SplitDataRequest::sentAllPackets ( )

inlinevirtual

Have we stepped past the end of fragmentPackets?

Implements Minor::LSQ::LSQRequest.

Definition at line 451 of file lsq.hh.

◆ startAddrTranslation()

void LSQ< Impl >::SplitDataRequest::startAddrTranslation ( )

virtual

Start a loop of do { sendNextFragmentToTranslation ; translateTiming ; finish } while (numTranslatedFragments != numFragments) to complete all this requests' fragments' address translations.

Implements Minor::LSQ::LSQRequest.

Definition at line 591 of file lsq.cc.

References Minor::LSQ::LSQRequest::Complete, Minor::LSQ::LSQRequest::disableMemAccess(), Minor::LSQ::LSQRequest::InTranslation, makeFragmentRequests(), numFragments, numInTranslationFragments, numTranslatedFragments, sendNextFragmentToTranslation(), and Minor::LSQ::LSQRequest::setState().

◆ stepToNextPacket()

void LSQ< Impl >::SplitDataRequest::stepToNextPacket ( )

virtual

Step on numIssuedFragments.

Implements Minor::LSQ::LSQRequest.

Definition at line 624 of file lsq.cc.

References numIssuedFragments, and numTranslatedFragments.

Member Data Documentation

◆ fragmentPackets

std::vector<Packet *> Minor::LSQ::SplitDataRequest::fragmentPackets

protected

Packets matching fragmentRequests to issue fragments to memory.

Definition at line 412 of file lsq.hh.

Referenced by getHeadPacket(), makeFragmentPackets(), SplitDataRequest(), and ~SplitDataRequest().

◆ fragmentRequests

std::vector<RequestPtr> Minor::LSQ::SplitDataRequest::fragmentRequests

protected

Fragment Requests corresponding to the address ranges of each fragment.

Definition at line 409 of file lsq.hh.

Referenced by makeFragmentPackets(), makeFragmentRequests(), sendNextFragmentToTranslation(), and SplitDataRequest().

◆ numFragments

unsigned int Minor::LSQ::SplitDataRequest::numFragments

protected

Number of fragments this request is split into.

Definition at line 390 of file lsq.hh.

Referenced by makeFragmentRequests(), SplitDataRequest(), and startAddrTranslation().

◆ numInTranslationFragments

unsigned int Minor::LSQ::SplitDataRequest::numInTranslationFragments

protected

Number of fragments in the address translation mechanism.

Definition at line 393 of file lsq.hh.

Referenced by sendNextFragmentToTranslation(), SplitDataRequest(), and startAddrTranslation().

◆ numIssuedFragments

unsigned int Minor::LSQ::SplitDataRequest::numIssuedFragments

protected

Number of fragments already issued (<= numFragments)

Definition at line 402 of file lsq.hh.

Referenced by getHeadPacket(), SplitDataRequest(), and stepToNextPacket().

◆ numRetiredFragments

unsigned int Minor::LSQ::SplitDataRequest::numRetiredFragments

protected

Number of fragments retired back to this request.

Definition at line 405 of file lsq.hh.

Referenced by retireResponse(), and SplitDataRequest().

◆ numTranslatedFragments

unsigned int Minor::LSQ::SplitDataRequest::numTranslatedFragments

protected

Number of fragments that have completed address translation, (numTranslatedFragments + numInTranslationFragments) <= numFragments.

When numTranslatedFramgents == numFragments, translation is complete

Definition at line 399 of file lsq.hh.

Referenced by getHeadPacket(), makeFragmentPackets(), retireResponse(), sendNextFragmentToTranslation(), SplitDataRequest(), startAddrTranslation(), and stepToNextPacket().

◆ translationEvent

EventFunctionWrapper Minor::LSQ::SplitDataRequest::translationEvent

protected

Event to step between translations.

Definition at line 387 of file lsq.hh.

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

cpu/minor/lsq.hh
cpu/minor/lsq.cc

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SplitDataRequest()

◆ ~SplitDataRequest()

Member Function Documentation

◆ finish()

◆ getHeadPacket()

◆ hasPacketsInMemSystem()

◆ makeFragmentPackets()

◆ makeFragmentRequests()

◆ retireResponse()

◆ sendNextFragmentToTranslation()

◆ sentAllPackets()

◆ startAddrTranslation()

◆ stepToNextPacket()

Member Data Documentation

◆ fragmentPackets

◆ fragmentRequests

◆ numFragments

◆ numInTranslationFragments

◆ numIssuedFragments

◆ numRetiredFragments

◆ numTranslatedFragments

◆ translationEvent