gem5
v20.1.0.0
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#include <mem_delay.hh>
Public Member Functions | |
RequestPort (const std::string &_name, MemDelay &_parent) | |
Public Member Functions inherited from 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 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 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... | |
Protected Member Functions | |
bool | recvTimingResp (PacketPtr pkt) override |
Receive a timing response from the peer. More... | |
void | recvFunctionalSnoop (PacketPtr pkt) override |
Receive a functional snoop request packet from the peer. More... | |
Tick | recvAtomicSnoop (PacketPtr pkt) override |
Receive an atomic snoop request packet from our peer. More... | |
void | recvTimingSnoopReq (PacketPtr pkt) override |
Receive a timing snoop request from the peer. More... | |
void | recvRangeChange () override |
Called to receive an address range change from the peer response port. More... | |
bool | isSnooping () const override |
Determine if this request port is snooping or not. More... | |
Protected Member Functions inherited from 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 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... | |
Protected Member Functions inherited from Port | |
void | reportUnbound () const |
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... | |
Private Attributes | |
MemDelay & | parent |
Additional Inherited Members | |
Protected Attributes inherited from 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 RequestPort | |
SimObject & | owner |
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... | |
Definition at line 74 of file mem_delay.hh.
MemDelay::RequestPort::RequestPort | ( | const std::string & | _name, |
MemDelay & | _parent | ||
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Definition at line 80 of file mem_delay.cc.
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inlineoverrideprotectedvirtual |
Determine if this request port is snooping or not.
The default implementation returns false and thus tells the neighbour we are not snooping. Any request port that wants to receive snoop requests (e.g. a cache connected to a bus) has to override this function.
Reimplemented from RequestPort.
Definition at line 92 of file mem_delay.hh.
References ResponsePort::isSnooping(), parent, and MemDelay::responsePort.
Receive an atomic snoop request packet from our peer.
Implements AtomicRequestProtocol.
Definition at line 113 of file mem_delay.cc.
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overrideprotectedvirtual |
Receive a functional snoop request packet from the peer.
Implements FunctionalRequestProtocol.
Definition at line 103 of file mem_delay.cc.
References Packet::makeResponse().
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inlineoverrideprotectedvirtual |
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 RequestPort.
Definition at line 88 of file mem_delay.hh.
References parent, MemDelay::responsePort, and ResponsePort::sendRangeChange().
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overrideprotectedvirtual |
Receive a timing response from the peer.
Implements TimingRequestProtocol.
Definition at line 88 of file mem_delay.cc.
References curTick(), Packet::headerDelay, and Packet::payloadDelay.
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overrideprotectedvirtual |
Receive a timing snoop request from the peer.
Implements TimingRequestProtocol.
Definition at line 121 of file mem_delay.cc.
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private |
Definition at line 97 of file mem_delay.hh.
Referenced by isSnooping(), and recvRangeChange().