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ComputeUnit::SQCPort Class Reference

#include <compute_unit.hh>

Inheritance diagram for ComputeUnit::SQCPort:
MasterPort Port AtomicRequestProtocol TimingRequestProtocol FunctionalRequestProtocol

Classes

struct  SenderState
 

Public Member Functions

 SQCPort (const std::string &_name, ComputeUnit *_cu, PortID _index)
 
- Public Member Functions inherited from MasterPort
 MasterPort (const std::string &name, SimObject *_owner, PortID id=InvalidPortID)
 Master port. More...
 
virtual ~MasterPort ()
 
void bind (Port &peer) override
 Bind this master port to a slave port. More...
 
void unbind () override
 Unbind this master port and the associated slave port. More...
 
virtual bool isSnooping () const
 Determine if this master port is snooping or not. More...
 
AddrRangeList getAddrRanges () const
 Get the address ranges of the connected slave 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 slave port by calling its corresponding receive function. More...
 
bool tryTiming (PacketPtr pkt) const
 Check if the slave can handle a timing request. More...
 
bool sendTimingSnoopResp (PacketPtr pkt)
 Attempt to send a timing snoop response packet to the slave port by calling its corresponding receive function. More...
 
virtual void sendRetryResp ()
 Send a retry to the slave port that previously attempted a sendTimingResp to this master port and failed. More...
 
- Public Member Functions inherited from 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...
 

Public Attributes

bool snoopRangeSent
 
std::deque< std::pair< PacketPtr, Wavefront * > > retries
 

Protected Member Functions

virtual bool recvTimingResp (PacketPtr pkt)
 Receive a timing response from the peer. More...
 
virtual Tick recvAtomic (PacketPtr pkt)
 
virtual void recvFunctional (PacketPtr pkt)
 
virtual void recvRangeChange ()
 Called to receive an address range change from the peer slave port. More...
 
virtual void recvReqRetry ()
 Called by the peer if sendTimingReq was called on this peer (causing recvTimingReq to be called on the peer) and was unsuccessful. More...
 
virtual void getDeviceAddressRanges (AddrRangeList &resp, bool &snoop)
 
- Protected Member Functions inherited from MasterPort
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 Port
 Port (const std::string &_name, PortID _id)
 Abstract base class for ports. More...
 
- Protected Member Functions inherited from 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 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 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

ComputeUnitcomputeUnit
 
int index
 
- Protected Attributes inherited from MasterPort
SimObjectowner
 
- Protected Attributes inherited from 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

Definition at line 490 of file compute_unit.hh.

Constructor & Destructor Documentation

◆ SQCPort()

ComputeUnit::SQCPort::SQCPort ( const std::string &  _name,
ComputeUnit _cu,
PortID  _index 
)
inline

Definition at line 493 of file compute_unit.hh.

Member Function Documentation

◆ getDeviceAddressRanges()

virtual void ComputeUnit::SQCPort::getDeviceAddressRanges ( AddrRangeList resp,
bool &  snoop 
)
inlineprotectedvirtual

Definition at line 522 of file compute_unit.hh.

◆ recvAtomic()

virtual Tick ComputeUnit::SQCPort::recvAtomic ( PacketPtr  pkt)
inlineprotectedvirtual

Definition at line 516 of file compute_unit.hh.

◆ recvFunctional()

virtual void ComputeUnit::SQCPort::recvFunctional ( PacketPtr  pkt)
inlineprotectedvirtual

Definition at line 517 of file compute_unit.hh.

◆ recvRangeChange()

virtual void ComputeUnit::SQCPort::recvRangeChange ( )
inlineprotectedvirtual

Called to receive an address range change from the peer slave port.

The default implementation ignores the change and does nothing. Override this function in a derived class if the owner needs to be aware of the address ranges, e.g. in an interconnect component like a bus.

Reimplemented from MasterPort.

Definition at line 518 of file compute_unit.hh.

◆ recvReqRetry()

void ComputeUnit::SQCPort::recvReqRetry ( )
protectedvirtual

Called by the peer if sendTimingReq was called on this peer (causing recvTimingReq to be called on the peer) and was unsuccessful.

Implements TimingRequestProtocol.

Definition at line 723 of file compute_unit.cc.

References DPRINTF, ArmISA::i, ArmISA::len, and Packet::req.

◆ recvTimingResp()

bool ComputeUnit::SQCPort::recvTimingResp ( PacketPtr  pkt)
protectedvirtual

Receive a timing response from the peer.

Implements TimingRequestProtocol.

Definition at line 715 of file compute_unit.cc.

Member Data Documentation

◆ computeUnit

ComputeUnit* ComputeUnit::SQCPort::computeUnit
protected

Definition at line 512 of file compute_unit.hh.

◆ index

int ComputeUnit::SQCPort::index
protected

Definition at line 513 of file compute_unit.hh.

◆ retries

std::deque<std::pair<PacketPtr, Wavefront*> > ComputeUnit::SQCPort::retries

Definition at line 509 of file compute_unit.hh.

Referenced by FetchUnit::fetch().

◆ snoopRangeSent

bool ComputeUnit::SQCPort::snoopRangeSent

Definition at line 497 of file compute_unit.hh.


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

Generated on Mon Jun 8 2020 15:45:20 for gem5 by doxygen 1.8.13