gem5  v21.1.0.2
Classes | Public Member Functions | Public Attributes | Protected Member Functions | Protected Attributes | List of all members
gem5::ComputeUnit::ITLBPort Class Reference

#include <compute_unit.hh>

Inheritance diagram for gem5::ComputeUnit::ITLBPort:
gem5::RequestPort gem5::Port gem5::AtomicRequestProtocol gem5::TimingRequestProtocol gem5::FunctionalRequestProtocol

Classes

struct  SenderState
 SenderState is information carried along with the packet throughout the TLB hierarchy. More...
 

Public Member Functions

 ITLBPort (const std::string &_name, ComputeUnit *_cu)
 
bool isStalled ()
 
void stallPort ()
 
void unstallPort ()
 
- 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...
 
virtual bool isSnooping () const
 Determine if this request port is snooping or not. 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...
 

Public Attributes

std::deque< PacketPtrretries
 here we queue all the translation requests that were not successfully sent. More...
 

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 response 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...
 
- Protected Member Functions inherited from gem5::RequestPort
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

ComputeUnitcomputeUnit
 
bool stalled
 
- 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

Definition at line 721 of file compute_unit.hh.

Constructor & Destructor Documentation

◆ ITLBPort()

gem5::ComputeUnit::ITLBPort::ITLBPort ( const std::string &  _name,
ComputeUnit _cu 
)
inline

Definition at line 724 of file compute_unit.hh.

Member Function Documentation

◆ isStalled()

bool gem5::ComputeUnit::ITLBPort::isStalled ( )
inline

Definition at line 728 of file compute_unit.hh.

References stalled.

Referenced by gem5::FetchUnit::initiateFetch().

◆ recvAtomic()

virtual Tick gem5::ComputeUnit::ITLBPort::recvAtomic ( PacketPtr  pkt)
inlineprotectedvirtual

Definition at line 754 of file compute_unit.hh.

◆ recvFunctional()

virtual void gem5::ComputeUnit::ITLBPort::recvFunctional ( PacketPtr  pkt)
inlineprotectedvirtual

Definition at line 755 of file compute_unit.hh.

◆ recvRangeChange()

virtual void gem5::ComputeUnit::ITLBPort::recvRangeChange ( )
inlineprotectedvirtual

Called to receive an address range change from the peer response 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 gem5::RequestPort.

Definition at line 756 of file compute_unit.hh.

◆ recvReqRetry()

void gem5::ComputeUnit::ITLBPort::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 gem5::TimingRequestProtocol.

Definition at line 1775 of file compute_unit.cc.

References DPRINTF, gem5::ArmISA::i, gem5::ArmISA::len, gem5::Packet::req, and gem5::MipsISA::vaddr.

◆ recvTimingResp()

bool gem5::ComputeUnit::ITLBPort::recvTimingResp ( PacketPtr  pkt)
protectedvirtual

◆ stallPort()

void gem5::ComputeUnit::ITLBPort::stallPort ( )
inline

Definition at line 729 of file compute_unit.hh.

References stalled.

Referenced by gem5::FetchUnit::initiateFetch().

◆ unstallPort()

void gem5::ComputeUnit::ITLBPort::unstallPort ( )
inline

Definition at line 730 of file compute_unit.hh.

References stalled.

Member Data Documentation

◆ computeUnit

ComputeUnit* gem5::ComputeUnit::ITLBPort::computeUnit
protected

Definition at line 750 of file compute_unit.hh.

◆ retries

std::deque<PacketPtr> gem5::ComputeUnit::ITLBPort::retries

here we queue all the translation requests that were not successfully sent.

Definition at line 736 of file compute_unit.hh.

Referenced by gem5::FetchUnit::initiateFetch().

◆ stalled

bool gem5::ComputeUnit::ITLBPort::stalled
protected

Definition at line 751 of file compute_unit.hh.

Referenced by isStalled(), stallPort(), and unstallPort().


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

Generated on Tue Sep 21 2021 12:27:24 for gem5 by doxygen 1.8.17