gem5
v20.0.0.2
|
#include <mem_delay.hh>
Public Member Functions | |
MasterPort (const std::string &_name, MemDelay &_parent) | |
![]() | |
QueuedMasterPort (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 | ~QueuedMasterPort () |
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... | |
![]() | |
MasterPort (const std::string &name, SimObject *_owner, PortID id=InvalidPortID) | |
Master port. More... | |
virtual | ~MasterPort () |
void | bind (Port &peer) override |
Bind this master port to a slave port. More... | |
void | unbind () override |
Unbind this master port and the associated slave port. More... | |
AddrRangeList | getAddrRanges () const |
Get the address ranges of the connected slave 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 slave port by calling its corresponding receive function. More... | |
bool | tryTiming (PacketPtr pkt) const |
Check if the slave can handle a timing request. More... | |
bool | sendTimingSnoopResp (PacketPtr pkt) |
Attempt to send a timing snoop response packet to the slave port by calling its corresponding receive function. More... | |
virtual void | sendRetryResp () |
Send a retry to the slave port that previously attempted a sendTimingResp to this master port and failed. More... | |
![]() | |
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 slave port. More... | |
bool | isSnooping () const override |
Determine if this master port is snooping or not. More... | |
![]() | |
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... | |
![]() | |
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... | |
![]() | |
Port (const std::string &_name, PortID _id) | |
Abstract base class for ports. More... | |
![]() | |
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... | |
![]() | |
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... | |
![]() | |
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 | |
![]() | |
ReqPacketQueue & | reqQueue |
Packet queue used to store outgoing requests. More... | |
SnoopRespPacketQueue & | snoopRespQueue |
Packet queue used to store outgoing snoop responses. More... | |
![]() | |
SimObject & | owner |
![]() | |
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::MasterPort::MasterPort | ( | const std::string & | _name, |
MemDelay & | _parent | ||
) |
Definition at line 80 of file mem_delay.cc.
|
inlineoverrideprotectedvirtual |
Determine if this master port is snooping or not.
The default implementation returns false and thus tells the neighbour we are not snooping. Any master port that wants to receive snoop requests (e.g. a cache connected to a bus) has to override this function.
Reimplemented from MasterPort.
Definition at line 92 of file mem_delay.hh.
References SlavePort::isSnooping(), parent, and MemDelay::slavePort.
Receive an atomic snoop request packet from our peer.
Implements AtomicRequestProtocol.
Definition at line 108 of file mem_delay.cc.
References MemDelay::delaySnoopResp(), parent, SlavePort::sendAtomicSnoop(), and MemDelay::slavePort.
|
overrideprotectedvirtual |
Receive a functional snoop request packet from the peer.
Implements FunctionalRequestProtocol.
Definition at line 98 of file mem_delay.cc.
References Packet::makeResponse(), parent, SlavePort::sendFunctionalSnoop(), MemDelay::slavePort, and MemDelay::trySatisfyFunctional().
|
inlineoverrideprotectedvirtual |
Called to receive an address range change from the peer slave 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 MasterPort.
Definition at line 88 of file mem_delay.hh.
References parent, SlavePort::sendRangeChange(), and MemDelay::slavePort.
|
overrideprotectedvirtual |
Receive a timing response from the peer.
Implements TimingRequestProtocol.
Definition at line 88 of file mem_delay.cc.
References curTick(), MemDelay::delayResp(), parent, QueuedSlavePort::schedTimingResp(), and MemDelay::slavePort.
|
overrideprotectedvirtual |
Receive a timing snoop request from the peer.
Implements TimingRequestProtocol.
Definition at line 116 of file mem_delay.cc.
References parent, SlavePort::sendTimingSnoopReq(), and MemDelay::slavePort.
|
private |
Definition at line 97 of file mem_delay.hh.
Referenced by MemDelay::SlavePort::getAddrRanges(), isSnooping(), recvAtomicSnoop(), recvFunctionalSnoop(), recvRangeChange(), recvTimingResp(), and recvTimingSnoopReq().