gem5
v20.0.0.2
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The memory port has to deal with its own flow control to avoid having unbounded storage that is implicitly created in the port itself. More...
Public Member Functions | |
MemoryPort (const std::string &_name, DRAMSim2 &_memory) | |
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SlavePort (const std::string &name, SimObject *_owner, PortID id=InvalidPortID) | |
Slave port. More... | |
virtual | ~SlavePort () |
bool | isSnooping () const |
Find out if the peer master port is snooping or not. More... | |
void | sendRangeChange () const |
Called by the owner to send a range change. More... | |
void | unbind () override |
We let the master port do the work, so these don't do anything. More... | |
void | bind (Port &peer) override |
Attach to a peer port. More... | |
Tick | sendAtomicSnoop (PacketPtr pkt) |
Send an atomic snoop request packet, where the data is moved and the state is updated in zero time, without interleaving with other memory accesses. More... | |
void | sendFunctionalSnoop (PacketPtr pkt) const |
Send a functional snoop 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 | sendTimingResp (PacketPtr pkt) |
Attempt to send a timing response to the master port by calling its corresponding receive function. More... | |
void | sendTimingSnoopReq (PacketPtr pkt) |
Attempt to send a timing snoop request packet to the master port by calling its corresponding receive function. More... | |
void | sendRetryReq () |
Send a retry to the master port that previously attempted a sendTimingReq to this slave port and failed. More... | |
void | sendRetrySnoopResp () |
Send a retry to the master port that previously attempted a sendTimingSnoopResp to this slave port and failed. More... | |
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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 | |
Tick | recvAtomic (PacketPtr pkt) |
Receive an atomic request packet from the peer. More... | |
void | recvFunctional (PacketPtr pkt) |
Receive a functional request packet from the peer. More... | |
bool | recvTimingReq (PacketPtr pkt) |
Receive a timing request from the peer. More... | |
void | recvRespRetry () |
Called by the peer if sendTimingResp was called on this protocol (causing recvTimingResp to be called on the peer) and was unsuccessful. More... | |
AddrRangeList | getAddrRanges () const |
Get a list of the non-overlapping address ranges the owner is responsible for. More... | |
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void | slaveUnbind () |
Called by the master port to unbind. More... | |
void | slaveBind (MasterPort &master_port) |
Called by the master port to bind. More... | |
Tick | recvAtomicBackdoor (PacketPtr pkt, MemBackdoorPtr &backdoor) override |
Default implementations. More... | |
bool | tryTiming (PacketPtr pkt) override |
Availability request from the peer. More... | |
bool | recvTimingSnoopResp (PacketPtr pkt) override |
Receive a timing snoop response from the peer. More... | |
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Port (const std::string &_name, PortID _id) | |
Abstract base class for ports. More... | |
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Tick | sendSnoop (AtomicRequestProtocol *peer, PacketPtr pkt) |
Send an atomic snoop request packet, where the data is moved and the state is updated in zero time, without interleaving with other memory accesses. More... | |
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bool | sendResp (TimingRequestProtocol *peer, PacketPtr pkt) |
Attempt to send a timing response to the peer by calling its corresponding receive function. More... | |
void | sendSnoopReq (TimingRequestProtocol *peer, PacketPtr pkt) |
Attempt to send a timing snoop request packet to the peer by calling its corresponding receive function. More... | |
void | sendRetryReq (TimingRequestProtocol *peer) |
Send a retry to the peer that previously attempted a sendTimingReq to this protocol and failed. More... | |
void | sendRetrySnoopResp (TimingRequestProtocol *peer) |
Send a retry to the peer that previously attempted a sendTimingSnoopResp to this peer and failed. More... | |
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void | sendSnoop (FunctionalRequestProtocol *peer, PacketPtr pkt) const |
Send a functional snoop 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 | |
DRAMSim2 & | memory |
Additional Inherited Members | |
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SimObject & | owner |
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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... | |
The memory port has to deal with its own flow control to avoid having unbounded storage that is implicitly created in the port itself.
Definition at line 62 of file dramsim2.hh.
DRAMSim2::MemoryPort::MemoryPort | ( | const std::string & | _name, |
DRAMSim2 & | _memory | ||
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Definition at line 355 of file dramsim2.cc.
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protectedvirtual |
Get a list of the non-overlapping address ranges the owner is responsible for.
All slave ports must override this function and return a populated list with at least one item.
Implements SlavePort.
Definition at line 361 of file dramsim2.cc.
Receive an atomic request packet from the peer.
Implements AtomicResponseProtocol.
Definition at line 369 of file dramsim2.cc.
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protectedvirtual |
Receive a functional request packet from the peer.
Implements FunctionalResponseProtocol.
Definition at line 375 of file dramsim2.cc.
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protectedvirtual |
Called by the peer if sendTimingResp was called on this protocol (causing recvTimingResp to be called on the peer) and was unsuccessful.
Implements TimingResponseProtocol.
Definition at line 388 of file dramsim2.cc.
References DRAMSim2::DRAMSim2().
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protectedvirtual |
Receive a timing request from the peer.
Implements TimingResponseProtocol.
Definition at line 381 of file dramsim2.cc.
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private |
Definition at line 67 of file dramsim2.hh.