#include <lsq.hh>

Inheritance diagram for Minor::LSQ::SplitDataRequest:

Classes
class	TranslationEvent
	Event to step between translations. More...

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_, 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...

Protected Attributes
TranslationEvent	translationEvent

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< Request * >	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

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

Fault	fault
	Fault generated performing this request. 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...

LSQRequestState	state

Public Attributes inherited from Packet::SenderState
SenderState *	predecessor

Detailed Description

Definition at line 376 of file lsq.hh.

Constructor & Destructor Documentation

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

Definition at line 321 of file lsq.cc.

Minor::LSQ::SplitDataRequest::~SplitDataRequest ( )

Definition at line 337 of file lsq.cc.

References ArmISA::i.

Member Function Documentation

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

protectedvirtual

TLB response interface.

Implements BaseTLB::Translation.

Definition at line 278 of file lsq.cc.

References curTick(), DPRINTFS, Minor::Pipeline::ExecuteStageId, M5_VAR_USED, and NoFault.

PacketPtr Minor::LSQ::SplitDataRequest::getHeadPacket ( )

virtual

Get the head packet as counted by numIssuedFragments.

Implements Minor::LSQ::LSQRequest.

Definition at line 514 of file lsq.cc.

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 453 of file lsq.hh.

References numIssuedFragments, and numRetiredFragments.

void Minor::LSQ::SplitDataRequest::makeFragmentPackets ( )

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

Definition at line 445 of file lsq.cc.

References data, DPRINTFS, fragment, Request::getFlags(), Request::getPaddr(), Request::getSize(), Request::getVaddr(), Request::hasPaddr(), and Minor::makePacketForRequest().

void Minor::LSQ::SplitDataRequest::makeFragmentRequests ( )

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

Definition at line 353 of file lsq.cc.

References Minor::addrBlockOffset(), DPRINTFS, fragment, M5_VAR_USED, Request::setContext(), and Request::setVirt().

void Minor::LSQ::SplitDataRequest::retireResponse ( PacketPtr packet_ )

virtual

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

Implements Minor::LSQ::LSQRequest.

Definition at line 530 of file lsq.cc.

References data, DPRINTFS, Packet::getConstPtr(), Request::getSize(), Packet::getSize(), Request::getVaddr(), Packet::isError(), NoFault, and Packet::req.

void Minor::LSQ::SplitDataRequest::sendNextFragmentToTranslation ( )

Part of the address translation loop, see startAddTranslation.

Definition at line 607 of file lsq.cc.

References DPRINTFS, ThreadContext::getDTBPtr(), BaseTLB::Read, and BaseTLB::Write.

Referenced by Minor::LSQ::SplitDataRequest::TranslationEvent::process().

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

inlinevirtual

Have we stepped past the end of fragmentPackets?

Implements Minor::LSQ::LSQRequest.

Definition at line 457 of file lsq.hh.

References numFragments, and numIssuedFragments.

void Minor::LSQ::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 493 of file lsq.cc.

References Minor::LSQ::LSQRequest::InTranslation.

void Minor::LSQ::SplitDataRequest::stepToNextPacket ( )

virtual

Step on numIssuedFragments.

Implements Minor::LSQ::LSQRequest.

Definition at line 522 of file lsq.cc.

Member Data Documentation

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

protected

Packets matching fragmentRequests to issue fragments to memory.

Definition at line 418 of file lsq.hh.

std::vector<Request *> Minor::LSQ::SplitDataRequest::fragmentRequests

protected

Fragment Requests corresponding to the address ranges of each fragment.

Definition at line 415 of file lsq.hh.

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

protected

Number of fragments this request is split into.

Definition at line 396 of file lsq.hh.

Referenced by sentAllPackets().

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

protected

Number of fragments in the address translation mechanism.

Definition at line 399 of file lsq.hh.

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

protected

Number of fragments already issued (<= numFragments)

Definition at line 408 of file lsq.hh.

Referenced by hasPacketsInMemSystem(), and sentAllPackets().

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

protected

Number of fragments retired back to this request.

Definition at line 411 of file lsq.hh.

Referenced by hasPacketsInMemSystem().

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 405 of file lsq.hh.

TranslationEvent Minor::LSQ::SplitDataRequest::translationEvent

protected

Definition at line 393 of file lsq.hh.

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

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

Classes

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation