gem5  v21.1.0.2
Public Member Functions | Private Attributes | List of all members
gem5::TraceCPU::DcachePort Class Reference

DcachePort class that interfaces with L1 Data Cache. More...

#include <trace_cpu.hh>

Inheritance diagram for gem5::TraceCPU::DcachePort:
gem5::RequestPort gem5::Port gem5::AtomicRequestProtocol gem5::TimingRequestProtocol gem5::FunctionalRequestProtocol

Public Member Functions

 DcachePort (TraceCPU *_cpu)
 Default constructor. More...
 
bool recvTimingResp (PacketPtr pkt)
 Receive the timing reponse and call dcacheRecvTimingResp() method of the dcacheGen to handle completing the load. More...
 
void recvTimingSnoopReq (PacketPtr pkt)
 Required functionally but do nothing. More...
 
void recvFunctionalSnoop (PacketPtr pkt)
 Required functionally but do nothing. More...
 
void recvReqRetry ()
 Handle a retry signalled by the cache if data access failed in the first attempt. More...
 
bool isSnooping () const
 Required functionally. More...
 
- Public Member Functions inherited from gem5::RequestPort
 RequestPort (const std::string &name, SimObject *_owner, PortID id=InvalidPortID)
 Request port. More...
 
virtual ~RequestPort ()
 
void bind (Port &peer) override
 Bind this request port to a response port. More...
 
void unbind () override
 Unbind this request port and the associated response port. More...
 
AddrRangeList getAddrRanges () const
 Get the address ranges of the connected responder port. More...
 
void printAddr (Addr a)
 Inject a PrintReq for the given address to print the state of that address throughout the memory system. More...
 
Tick sendAtomic (PacketPtr pkt)
 Send an atomic request packet, where the data is moved and the state is updated in zero time, without interleaving with other memory accesses. More...
 
Tick sendAtomicBackdoor (PacketPtr pkt, MemBackdoorPtr &backdoor)
 Send an atomic request packet like above, but also request a backdoor to the data being accessed. More...
 
void sendFunctional (PacketPtr pkt) const
 Send a functional request packet, where the data is instantly updated everywhere in the memory system, without affecting the current state of any block or moving the block. More...
 
bool sendTimingReq (PacketPtr pkt)
 Attempt to send a timing request to the responder port by calling its corresponding receive function. More...
 
bool tryTiming (PacketPtr pkt) const
 Check if the responder can handle a timing request. More...
 
bool sendTimingSnoopResp (PacketPtr pkt)
 Attempt to send a timing snoop response packet to the response port by calling its corresponding receive function. More...
 
virtual void sendRetryResp ()
 Send a retry to the response port that previously attempted a sendTimingResp to this request port and failed. More...
 
- Public Member Functions inherited from gem5::Port
virtual ~Port ()
 Virtual destructor due to inheritance. More...
 
PortgetPeer ()
 Return a reference to this port's peer. More...
 
const std::string name () const
 Return port name (for DPRINTF). More...
 
PortID getId () const
 Get the port id. More...
 
bool isConnected () const
 Is this port currently connected to a peer? More...
 
void takeOverFrom (Port *old)
 A utility function to make it easier to swap out ports. More...
 

Private Attributes

TraceCPUowner
 

Additional Inherited Members

- Protected Member Functions inherited from gem5::RequestPort
virtual void recvRangeChange ()
 Called to receive an address range change from the peer response port. More...
 
Tick recvAtomicSnoop (PacketPtr pkt) override
 Default implementations. More...
 
void recvFunctionalSnoop (PacketPtr pkt) override
 Receive a functional snoop request packet from the peer. More...
 
void recvTimingSnoopReq (PacketPtr pkt) override
 Receive a timing snoop request from the peer. More...
 
void recvRetrySnoopResp () override
 Called by the peer if sendTimingSnoopResp was called on this protocol (causing recvTimingSnoopResp to be called on the peer) and was unsuccessful. More...
 
- Protected Member Functions inherited from gem5::Port
void reportUnbound () const
 
 Port (const std::string &_name, PortID _id)
 Abstract base class for ports. More...
 
- Protected Member Functions inherited from gem5::AtomicRequestProtocol
Tick send (AtomicResponseProtocol *peer, PacketPtr pkt)
 Send an atomic request packet, where the data is moved and the state is updated in zero time, without interleaving with other memory accesses. More...
 
Tick sendBackdoor (AtomicResponseProtocol *peer, PacketPtr pkt, MemBackdoorPtr &backdoor)
 Send an atomic request packet like above, but also request a backdoor to the data being accessed. More...
 
- Protected Member Functions inherited from gem5::TimingRequestProtocol
bool sendReq (TimingResponseProtocol *peer, PacketPtr pkt)
 Attempt to send a timing request to the peer by calling its corresponding receive function. More...
 
bool trySend (TimingResponseProtocol *peer, PacketPtr pkt) const
 Check if the peer can handle a timing request. More...
 
bool sendSnoopResp (TimingResponseProtocol *peer, PacketPtr pkt)
 Attempt to send a timing snoop response packet to it's peer by calling its corresponding receive function. More...
 
void sendRetryResp (TimingResponseProtocol *peer)
 Send a retry to the peer that previously attempted a sendTimingResp to this protocol and failed. More...
 
- Protected Member Functions inherited from gem5::FunctionalRequestProtocol
void send (FunctionalResponseProtocol *peer, PacketPtr pkt) const
 Send a functional request packet, where the data is instantly updated everywhere in the memory system, without affecting the current state of any block or moving the block. More...
 
- Protected Attributes inherited from gem5::RequestPort
SimObjectowner
 
- Protected Attributes inherited from gem5::Port
const PortID id
 A numeric identifier to distinguish ports in a vector, and set to InvalidPortID in case this port is not part of a vector. More...
 
Port_peer
 A pointer to this port's peer. More...
 
bool _connected
 Whether this port is currently connected to a peer port. More...
 

Detailed Description

DcachePort class that interfaces with L1 Data Cache.

Definition at line 255 of file trace_cpu.hh.

Constructor & Destructor Documentation

◆ DcachePort()

gem5::TraceCPU::DcachePort::DcachePort ( TraceCPU _cpu)
inline

Default constructor.

Definition at line 260 of file trace_cpu.hh.

Member Function Documentation

◆ isSnooping()

bool gem5::TraceCPU::DcachePort::isSnooping ( ) const
inlinevirtual

Required functionally.

Returns
true since we have to snoop

Reimplemented from gem5::RequestPort.

Definition at line 300 of file trace_cpu.hh.

◆ recvFunctionalSnoop()

void gem5::TraceCPU::DcachePort::recvFunctionalSnoop ( PacketPtr  pkt)
inlinevirtual

Required functionally but do nothing.

Parameters
pktPointer to packet received

Implements gem5::FunctionalRequestProtocol.

Definition at line 287 of file trace_cpu.hh.

◆ recvReqRetry()

void gem5::TraceCPU::DcachePort::recvReqRetry ( )
virtual

Handle a retry signalled by the cache if data access failed in the first attempt.

Implements gem5::TimingRequestProtocol.

Definition at line 1192 of file trace_cpu.cc.

References gem5::TraceCPU::dcacheRetryRecvd(), and gem5::TraceCPU::FixedRetryGen::owner.

◆ recvTimingResp()

bool gem5::TraceCPU::DcachePort::recvTimingResp ( PacketPtr  pkt)
virtual

Receive the timing reponse and call dcacheRecvTimingResp() method of the dcacheGen to handle completing the load.

Parameters
pktPointer to packet received
Returns
true

Implements gem5::TimingRequestProtocol.

Definition at line 1179 of file trace_cpu.cc.

References gem5::TraceCPU::dcacheRecvTimingResp(), and gem5::TraceCPU::FixedRetryGen::owner.

◆ recvTimingSnoopReq()

void gem5::TraceCPU::DcachePort::recvTimingSnoopReq ( PacketPtr  pkt)
inlinevirtual

Required functionally but do nothing.

Parameters
pktPointer to packet received

Implements gem5::TimingRequestProtocol.

Definition at line 280 of file trace_cpu.hh.

Member Data Documentation

◆ owner

TraceCPU* gem5::TraceCPU::DcachePort::owner
private

Definition at line 303 of file trace_cpu.hh.


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

Generated on Tue Sep 21 2021 12:28:19 for gem5 by doxygen 1.8.17