Port on the memory-side that receives responses. More...
Inheritance diagram for SimpleCache::MemSidePort:
Public Member Functions | |
| MemSidePort (const std::string &name, SimpleCache *owner) | |
| Constructor. More... | |
| void | sendPacket (PacketPtr pkt) |
| Send a packet across this port. 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... | |
| 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 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 response port. More... | |
| void | recvReqRetry () override |
| Called by the response port if sendTimingReq was called on this request port (causing recvTimingReq to be called on the response port) and was unsuccesful. More... | |
| void | recvRangeChange () override |
| Called to receive an address range change from the peer response port. 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... | |
| 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 | |
| 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 | |
| SimpleCache * | owner |
| The object that owns this object (SimpleCache) More... | |
| PacketPtr | blockedPacket |
| If we tried to send a packet and it was blocked, store it here. More... | |
Additional Inherited Members | |
| 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... | |
Detailed Description
Port on the memory-side that receives responses.
Mostly just forwards requests to the cache (owner)
Definition at line 140 of file simple_cache.hh.
Constructor & Destructor Documentation
◆ MemSidePort()
|
inline |
Member Function Documentation
◆ recvRangeChange()
|
overrideprotectedvirtual |
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 185 of file simple_cache.cc.
◆ recvReqRetry()
|
overrideprotectedvirtual |
Called by the response port if sendTimingReq was called on this request port (causing recvTimingReq to be called on the response port) and was unsuccesful.
Implements TimingRequestProtocol.
Definition at line 171 of file simple_cache.cc.
◆ recvTimingResp()
|
overrideprotectedvirtual |
Receive a timing response from the response port.
Implements TimingRequestProtocol.
Definition at line 164 of file simple_cache.cc.
◆ sendPacket()
| void SimpleCache::MemSidePort::sendPacket | ( | PacketPtr | pkt | ) |
Send a packet across this port.
This is called by the owner and all of the flow control is hanled in this function. This is a convenience function for the SimpleCache to send pkts.
- Parameters
-
packet to send.
Definition at line 151 of file simple_cache.cc.
References panic_if.
Referenced by SimpleCache::accessTiming(), and SimpleCache::insert().
Member Data Documentation
◆ blockedPacket
|
private |
If we tried to send a packet and it was blocked, store it here.
Definition at line 147 of file simple_cache.hh.
◆ owner
|
private |
The object that owns this object (SimpleCache)
Definition at line 144 of file simple_cache.hh.
The documentation for this class was generated from the following files:
- learning_gem5/part2/simple_cache.hh
- learning_gem5/part2/simple_cache.cc