gem5
v22.1.0.0
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#include <table_walker.hh>
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... | |
Port & | getPeer () |
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 | |
ReqPacketQueue & | reqQueue |
Packet queue used to store outgoing requests. More... | |
SnoopRespPacketQueue & | snoopRespQueue |
Packet queue used to store outgoing snoop responses. More... | |
Protected Attributes inherited from gem5::RequestPort | |
SimObject & | owner |
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... | |
Definition at line 941 of file table_walker.hh.
gem5::TableWalker::Port::Port | ( | TableWalker * | _walker, |
RequestorID | id | ||
) |
Definition at line 141 of file table_walker.cc.
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private |
Definition at line 150 of file table_walker.cc.
References data, gem5::Packet::dataStatic(), gem5::context_switch_task_id::DMA, gem5::MipsISA::event, flags, gem5::MemCmd::ReadReq, gem5::ArmISA::TableWalker::requestorId, gem5::Packet::senderState, and state.
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private |
Definition at line 233 of file table_walker.cc.
References gem5::curTick(), and state.
Definition at line 218 of file table_walker.cc.
References gem5::Packet::getAddr(), gem5::Packet::isResponse(), gem5::Packet::req, gem5::Packet::senderState, and state.
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overridevirtual |
Receive a timing response from the peer.
Implements gem5::TimingRequestProtocol.
Definition at line 206 of file table_walker.cc.
References gem5::Packet::cacheResponding(), gem5::Packet::hasSharers(), and gem5::Packet::req.
void gem5::TableWalker::Port::sendAtomicReq | ( | Addr | desc_addr, |
int | size, | ||
uint8_t * | data, | ||
Request::Flags | flag, | ||
Tick | delay | ||
) |
Definition at line 183 of file table_walker.cc.
Referenced by gem5::ArmISA::TableWalker::fetchDescriptor().
void gem5::TableWalker::Port::sendFunctionalReq | ( | Addr | desc_addr, |
int | size, | ||
uint8_t * | data, | ||
Request::Flags | flag | ||
) |
Definition at line 171 of file table_walker.cc.
Referenced by gem5::ArmISA::TableWalker::fetchDescriptor().
void gem5::TableWalker::Port::sendTimingReq | ( | Addr | desc_addr, |
int | size, | ||
uint8_t * | data, | ||
Request::Flags | flag, | ||
Tick | delay, | ||
Event * | event | ||
) |
Definition at line 195 of file table_walker.cc.
References gem5::curTick(), data, gem5::MipsISA::event, and flags.
Referenced by gem5::ArmISA::TableWalker::fetchDescriptor().
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private |
Packet queue used to store outgoing requests.
Definition at line 967 of file table_walker.hh.
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private |
Cached requestorId of the table walker.
Definition at line 973 of file table_walker.hh.
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private |
Packet queue used to store outgoing snoop responses.
Definition at line 970 of file table_walker.hh.