gem5  v22.0.0.1
Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
gem5::minor::LSQ::SingleDataRequest Class Reference

SingleDataRequest is used for requests that don't fragment. More...

#include <lsq.hh>

Inheritance diagram for gem5::minor::LSQ::SingleDataRequest:
gem5::minor::LSQ::LSQRequest gem5::BaseMMU::Translation gem5::Packet::SenderState

Public Member Functions

void startAddrTranslation ()
 Send single translation request. More...
 
PacketPtr getHeadPacket ()
 Get the head packet as counted by numIssuedFragments. More...
 
void stepToNextPacket ()
 Remember that the packet has been sent. More...
 
bool hasPacketsInMemSystem ()
 Has packet been sent. More...
 
bool sentAllPackets ()
 packetInFlight can become false again, so need to check packetSent More...
 
void retireResponse (PacketPtr packet_)
 Keep the given packet as the response packet LSQRequest::packet. More...
 
 SingleDataRequest (LSQ &port_, MinorDynInstPtr inst_, bool isLoad_, PacketDataPtr data_=NULL, uint64_t *res_=NULL)
 
- 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. 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 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. More...
 
- 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 interace. More...
 
- Protected Member Functions inherited from gem5::minor::LSQ::LSQRequest
void markDelayed ()
 BaseMMU::Translation interface. More...
 
void tryToSuppressFault ()
 Instructions may want to suppress translation faults (e.g. More...
 
void disableMemAccess ()
 
void completeDisabledMemAccess ()
 

Protected Attributes

bool packetInFlight
 Has my only packet been sent to the memory system but has not yet been responded to. More...
 
bool packetSent
 Has the packet been at least sent to the memory system? More...
 

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. More...
 
- Public Attributes inherited from gem5::minor::LSQ::LSQRequest
LSQport
 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 gem5::Packet::SenderState
SenderStatepredecessor
 

Detailed Description

SingleDataRequest is used for requests that don't fragment.

Definition at line 346 of file lsq.hh.

Constructor & Destructor Documentation

◆ SingleDataRequest()

gem5::minor::LSQ::SingleDataRequest::SingleDataRequest ( LSQ port_,
MinorDynInstPtr  inst_,
bool  isLoad_,
PacketDataPtr  data_ = NULL,
uint64_t *  res_ = NULL 
)
inline

Definition at line 382 of file lsq.hh.

Member Function Documentation

◆ finish()

void gem5::minor::LSQ::SingleDataRequest::finish ( const Fault fault_,
const RequestPtr request_,
ThreadContext tc,
BaseMMU::Mode  mode 
)
protectedvirtual

TLB interace.

Implements gem5::BaseMMU::Translation.

Definition at line 272 of file lsq.cc.

References gem5::Complete, DPRINTFS, gem5::minor::Pipeline::ExecuteStageId, and gem5::NoFault.

◆ getHeadPacket()

PacketPtr gem5::minor::LSQ::SingleDataRequest::getHeadPacket ( )
inlinevirtual

Get the head packet as counted by numIssuedFragments.

Implements gem5::minor::LSQ::LSQRequest.

Definition at line 365 of file lsq.hh.

References gem5::minor::LSQ::LSQRequest::packet.

◆ hasPacketsInMemSystem()

bool gem5::minor::LSQ::SingleDataRequest::hasPacketsInMemSystem ( )
inlinevirtual

Has packet been sent.

Implements gem5::minor::LSQ::LSQRequest.

Definition at line 371 of file lsq.hh.

References packetInFlight.

◆ retireResponse()

void gem5::minor::LSQ::SingleDataRequest::retireResponse ( PacketPtr  packet_)
virtual

Keep the given packet as the response packet LSQRequest::packet.

Implements gem5::minor::LSQ::LSQRequest.

Definition at line 326 of file lsq.cc.

References gem5::Complete, and DPRINTFS.

◆ sentAllPackets()

bool gem5::minor::LSQ::SingleDataRequest::sentAllPackets ( )
inlinevirtual

packetInFlight can become false again, so need to check packetSent

Implements gem5::minor::LSQ::LSQRequest.

Definition at line 375 of file lsq.hh.

References packetSent.

◆ startAddrTranslation()

void gem5::minor::LSQ::SingleDataRequest::startAddrTranslation ( )
virtual

◆ stepToNextPacket()

void gem5::minor::LSQ::SingleDataRequest::stepToNextPacket ( )
inlinevirtual

Remember that the packet has been sent.

Implements gem5::minor::LSQ::LSQRequest.

Definition at line 368 of file lsq.hh.

References packetInFlight, and packetSent.

Member Data Documentation

◆ packetInFlight

bool gem5::minor::LSQ::SingleDataRequest::packetInFlight
protected

Has my only packet been sent to the memory system but has not yet been responded to.

Definition at line 355 of file lsq.hh.

Referenced by hasPacketsInMemSystem(), and stepToNextPacket().

◆ packetSent

bool gem5::minor::LSQ::SingleDataRequest::packetSent
protected

Has the packet been at least sent to the memory system?

Definition at line 358 of file lsq.hh.

Referenced by sentAllPackets(), and stepToNextPacket().


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

Generated on Sat Jun 18 2022 08:14:25 for gem5 by doxygen 1.8.17