gem5 v24.0.0.0
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#include <lsq.hh>
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. | |
void | makeFragmentPackets () |
Make the packets to go with the requests so they can be sent to the memory system. | |
void | startAddrTranslation () |
Start a loop of do { sendNextFragmentToTranslation ; translateTiming ; finish } while (numTranslatedFragments != numFragments) to complete all this requests' fragments' address translations. | |
PacketPtr | getHeadPacket () |
Get the head packet as counted by numIssuedFragments. | |
void | stepToNextPacket () |
Step on numIssuedFragments. | |
bool | hasPacketsInMemSystem () |
True if this request has any issued packets in the memory system and so can't be interrupted until it gets responses. | |
bool | sentAllPackets () |
Have we stepped past the end of fragmentPackets? | |
void | retireResponse (PacketPtr packet_) |
For loads, paste the response data into the main response packet. | |
void | sendNextFragmentToTranslation () |
Part of the address translation loop, see startAddTranslation. | |
Public Member Functions inherited from gem5::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. | |
bool | skippedMemAccess () |
Was no memory access attempted for this request? | |
void | setSkipped () |
Set this request as having been skipped before a memory transfer was attempt. | |
AddrRangeCoverage | containsAddrRangeOf (LSQRequest *other_request) |
Does this request's address range fully cover the range of other_request? | |
virtual bool | isBarrier () |
Is this a request a barrier? | |
bool | needsToBeSentToStoreBuffer () |
This request, once processed by the requests/transfers queues, will need to go to the store buffer. | |
void | setState (LSQRequestState new_state) |
Set state and output trace output. | |
bool | isComplete () const |
Has this request been completed. | |
void | reportData (std::ostream &os) const |
MinorTrace report interface. | |
Public Member Functions inherited from gem5::BaseMMU::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. | |
Public Member Functions inherited from gem5::Packet::SenderState | |
SenderState () | |
virtual | ~SenderState () |
Protected Member Functions | |
void | finish (const Fault &fault_, const RequestPtr &request_, ThreadContext *tc, BaseMMU::Mode mode) |
TLB response interface. | |
Protected Member Functions inherited from gem5::minor::LSQ::LSQRequest | |
void | markDelayed () |
BaseMMU::Translation interface. | |
void | tryToSuppressFault () |
Instructions may want to suppress translation faults (e.g. | |
void | disableMemAccess () |
void | completeDisabledMemAccess () |
Protected Attributes | |
EventFunctionWrapper | translationEvent |
Event to step between translations. | |
unsigned int | numFragments |
Number of fragments this request is split into. | |
unsigned int | numInTranslationFragments |
Number of fragments in the address translation mechanism. | |
unsigned int | numTranslatedFragments |
Number of fragments that have completed address translation, (numTranslatedFragments + numInTranslationFragments) <= numFragments. | |
unsigned int | numIssuedFragments |
Number of fragments already issued (<= numFragments) | |
unsigned int | numRetiredFragments |
Number of fragments retired back to this request. | |
std::vector< RequestPtr > | fragmentRequests |
Fragment Requests corresponding to the address ranges of each fragment. | |
std::vector< Packet * > | fragmentPackets |
Packets matching fragmentRequests to issue fragments to memory. | |
Additional Inherited Members | |
Public Types inherited from gem5::minor::LSQ::LSQRequest | |
enum | LSQRequestState { NotIssued , InTranslation , Translated , Failed , RequestIssuing , StoreToStoreBuffer , RequestNeedsRetry , StoreInStoreBuffer , StoreBufferIssuing , StoreBufferNeedsRetry , Complete } |
Static Public Member Functions inherited from gem5::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. | |
Public Attributes inherited from gem5::minor::LSQ::LSQRequest | |
LSQ & | port |
Owning port. | |
MinorDynInstPtr | inst |
Instruction which made this request. | |
bool | isLoad |
Load/store indication used for building packet. | |
PacketDataPtr | data |
Dynamically allocated and populated data carried for building write packets. | |
PacketPtr | packet |
RequestPtr | request |
The underlying request of this LSQRequest. | |
uint64_t * | res |
Res from pushRequest. | |
bool | skipped |
Was skipped. | |
bool | issuedToMemory |
This in an access other than a normal cacheable load that's visited the memory system. | |
bool | isTranslationDelayed |
Address translation is delayed due to table walk. | |
LSQRequestState | state |
Public Attributes inherited from gem5::Packet::SenderState | |
SenderState * | predecessor |
gem5::minor::LSQ::SplitDataRequest::SplitDataRequest | ( | LSQ & | port_, |
MinorDynInstPtr | inst_, | ||
bool | isLoad_, | ||
PacketDataPtr | data_ = NULL, | ||
uint64_t * | res_ = NULL ) |
Definition at line 392 of file lsq.cc.
References sendNextFragmentToTranslation().
gem5::minor::LSQ::SplitDataRequest::~SplitDataRequest | ( | ) |
Definition at line 409 of file lsq.cc.
References gem5::ArmISA::i.
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protectedvirtual |
TLB response interface.
Implements gem5::BaseMMU::Translation.
Definition at line 334 of file lsq.cc.
References gem5::Complete, gem5::curTick(), DPRINTFS, gem5::minor::Pipeline::ExecuteStageId, and gem5::NoFault.
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Get the head packet as counted by numIssuedFragments.
Implements gem5::minor::LSQ::LSQRequest.
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inlinevirtual |
True if this request has any issued packets in the memory system and so can't be interrupted until it gets responses.
Implements gem5::minor::LSQ::LSQRequest.
Definition at line 453 of file lsq.hh.
References numIssuedFragments, and numRetiredFragments.
void gem5::minor::LSQ::SplitDataRequest::makeFragmentPackets | ( | ) |
Make the packets to go with the requests so they can be sent to the memory system.
Definition at line 533 of file lsq.cc.
References data, DPRINTFS, and gem5::minor::makePacketForRequest().
void gem5::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 419 of file lsq.cc.
References gem5::addrBlockOffset(), DPRINTFS, and gem5::isAnyActiveElement().
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For loads, paste the response data into the main response packet.
Implements gem5::minor::LSQ::LSQRequest.
Definition at line 624 of file lsq.cc.
References gem5::Complete, data, DPRINTFS, gem5::Packet::getConstPtr(), gem5::Packet::getSize(), gem5::Packet::isError(), gem5::NoFault, and gem5::Packet::req.
void gem5::minor::LSQ::SplitDataRequest::sendNextFragmentToTranslation | ( | ) |
Part of the address translation loop, see startAddTranslation.
Definition at line 701 of file lsq.cc.
References DPRINTFS, gem5::ThreadContext::getMMUPtr(), gem5::BaseMMU::Read, gem5::BaseMMU::translateTiming(), and gem5::BaseMMU::Write.
Referenced by SplitDataRequest().
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inlinevirtual |
Have we stepped past the end of fragmentPackets?
Implements gem5::minor::LSQ::LSQRequest.
Definition at line 457 of file lsq.hh.
References numIssuedFragments, and numTranslatedFragments.
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Start a loop of do { sendNextFragmentToTranslation ; translateTiming ; finish } while (numTranslatedFragments != numFragments) to complete all this requests' fragments' address translations.
Implements gem5::minor::LSQ::LSQRequest.
Definition at line 583 of file lsq.cc.
References gem5::minor::LSQ::LSQRequest::Complete, and gem5::minor::LSQ::LSQRequest::InTranslation.
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Step on numIssuedFragments.
Implements gem5::minor::LSQ::LSQRequest.
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Number of fragments already issued (<= numFragments)
Definition at line 408 of file lsq.hh.
Referenced by hasPacketsInMemSystem(), and sentAllPackets().
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Number of fragments retired back to this request.
Definition at line 411 of file lsq.hh.
Referenced by hasPacketsInMemSystem().
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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.
Referenced by sentAllPackets().
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