gem5  v21.1.0.2
Public Member Functions | Private Member Functions | Private Attributes | List of all members
gem5::ArmISA::TableWalker::Port Class Reference

#include <table_walker.hh>

Inheritance diagram for gem5::ArmISA::TableWalker::Port:
gem5::QueuedRequestPort gem5::RequestPort gem5::Port gem5::AtomicRequestProtocol gem5::TimingRequestProtocol gem5::FunctionalRequestProtocol

Public Member Functions

 Port (TableWalker *_walker, RequestorID id)
 
void sendFunctionalReq (Addr desc_addr, int size, uint8_t *data, Request::Flags flag)
 
void sendAtomicReq (Addr desc_addr, int size, uint8_t *data, Request::Flags flag, Tick delay)
 
void sendTimingReq (Addr desc_addr, int size, uint8_t *data, Request::Flags flag, Tick delay, Event *event)
 
bool recvTimingResp (PacketPtr pkt) override
 Receive a timing response from the peer. More...
 
- Public Member Functions inherited from gem5::QueuedRequestPort
 QueuedRequestPort (const std::string &name, SimObject *owner, ReqPacketQueue &req_queue, SnoopRespPacketQueue &snoop_resp_queue, PortID id=InvalidPortID)
 Create a QueuedPort with a given name, owner, and a supplied implementation of two packet queues. More...
 
virtual ~QueuedRequestPort ()
 
void schedTimingReq (PacketPtr pkt, Tick when)
 Schedule the sending of a timing request. More...
 
void schedTimingSnoopResp (PacketPtr pkt, Tick when)
 Schedule the sending of a timing snoop response. More...
 
bool trySatisfyFunctional (PacketPtr pkt)
 Check the list of buffered packets against the supplied functional request. 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...
 
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...
 

Private Member Functions

void handleRespPacket (PacketPtr pkt, Tick delay=0)
 
void handleResp (TableWalkerState *state, Addr addr, Addr size, Tick delay=0)
 
PacketPtr createPacket (Addr desc_addr, int size, uint8_t *data, Request::Flags flag, Tick delay, Event *event)
 

Private Attributes

ReqPacketQueue reqQueue
 Packet queue used to store outgoing requests. More...
 
SnoopRespPacketQueue snoopRespQueue
 Packet queue used to store outgoing snoop responses. More...
 
RequestorID requestorId
 Cached requestorId of the table walker. More...
 

Additional Inherited Members

- Protected Member Functions inherited from gem5::QueuedRequestPort
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...
 
void recvRetrySnoopResp ()
 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::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...
 
- 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::QueuedRequestPort
ReqPacketQueuereqQueue
 Packet queue used to store outgoing requests. More...
 
SnoopRespPacketQueuesnoopRespQueue
 Packet queue used to store outgoing snoop responses. 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

Definition at line 869 of file table_walker.hh.

Constructor & Destructor Documentation

◆ Port()

gem5::TableWalker::Port::Port ( TableWalker _walker,
RequestorID  id 
)

Definition at line 136 of file table_walker.cc.

Member Function Documentation

◆ createPacket()

PacketPtr gem5::TableWalker::Port::createPacket ( Addr  desc_addr,
int  size,
uint8_t *  data,
Request::Flags  flag,
Tick  delay,
Event event 
)
private

◆ handleResp()

void gem5::TableWalker::Port::handleResp ( TableWalkerState state,
Addr  addr,
Addr  size,
Tick  delay = 0 
)
private

◆ handleRespPacket()

void gem5::TableWalker::Port::handleRespPacket ( PacketPtr  pkt,
Tick  delay = 0 
)
private

◆ recvTimingResp()

bool gem5::TableWalker::Port::recvTimingResp ( PacketPtr  pkt)
overridevirtual

Receive a timing response from the peer.

Implements gem5::TimingRequestProtocol.

Definition at line 201 of file table_walker.cc.

References gem5::Packet::cacheResponding(), gem5::Packet::hasSharers(), and gem5::Packet::req.

◆ sendAtomicReq()

void gem5::TableWalker::Port::sendAtomicReq ( Addr  desc_addr,
int  size,
uint8_t *  data,
Request::Flags  flag,
Tick  delay 
)

Definition at line 178 of file table_walker.cc.

References data.

Referenced by gem5::ArmISA::TableWalker::fetchDescriptor().

◆ sendFunctionalReq()

void gem5::TableWalker::Port::sendFunctionalReq ( Addr  desc_addr,
int  size,
uint8_t *  data,
Request::Flags  flag 
)

Definition at line 166 of file table_walker.cc.

References data.

Referenced by gem5::ArmISA::TableWalker::fetchDescriptor().

◆ sendTimingReq()

void gem5::TableWalker::Port::sendTimingReq ( Addr  desc_addr,
int  size,
uint8_t *  data,
Request::Flags  flag,
Tick  delay,
Event event 
)

Definition at line 190 of file table_walker.cc.

References gem5::curTick(), data, and gem5::MipsISA::event.

Referenced by gem5::ArmISA::TableWalker::fetchDescriptor().

Member Data Documentation

◆ reqQueue

ReqPacketQueue gem5::ArmISA::TableWalker::Port::reqQueue
private

Packet queue used to store outgoing requests.

Definition at line 895 of file table_walker.hh.

◆ requestorId

RequestorID gem5::ArmISA::TableWalker::Port::requestorId
private

Cached requestorId of the table walker.

Definition at line 901 of file table_walker.hh.

◆ snoopRespQueue

SnoopRespPacketQueue gem5::ArmISA::TableWalker::Port::snoopRespQueue
private

Packet queue used to store outgoing snoop responses.

Definition at line 898 of file table_walker.hh.


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

Generated on Tue Sep 21 2021 12:28:42 for gem5 by doxygen 1.8.17