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gem5
v22.1.0.0
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Declaration of the non-coherent crossbar CPU-side port type, one will be instantiated for each of the memory-side ports connecting to the crossbar. More...
#include <noncoherent_xbar.hh>
Public Member Functions | |
| NoncoherentXBarResponsePort (const std::string &_name, NoncoherentXBar &_xbar, PortID _id) | |
Public Member Functions inherited from gem5::QueuedResponsePort | |
| QueuedResponsePort (const std::string &name, SimObject *owner, RespPacketQueue &resp_queue, PortID id=InvalidPortID) | |
| Create a QueuedPort with a given name, owner, and a supplied implementation of a packet queue. More... | |
| virtual | ~QueuedResponsePort () |
| void | schedTimingResp (PacketPtr pkt, Tick when) |
| Schedule the sending of a timing response. More... | |
| bool | trySatisfyFunctional (PacketPtr pkt) |
| Check the list of buffered packets against the supplied functional request. More... | |
Public Member Functions inherited from gem5::ResponsePort | |
| ResponsePort (const std::string &name, SimObject *_owner, PortID id=InvalidPortID) | |
| Response port. More... | |
| virtual | ~ResponsePort () |
| bool | isSnooping () const |
| Find out if the peer request 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 request 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 request port by calling its corresponding receive function. More... | |
| void | sendTimingSnoopReq (PacketPtr pkt) |
| Attempt to send a timing snoop request packet to the request port by calling its corresponding receive function. More... | |
| void | sendRetryReq () |
| Send a retry to the request port that previously attempted a sendTimingReq to this response port and failed. More... | |
| void | sendRetrySnoopResp () |
| Send a retry to the request port that previously attempted a sendTimingSnoopResp to this response 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... | |
Protected Member Functions | |
| bool | recvTimingReq (PacketPtr pkt) override |
| Receive a timing request from the peer. More... | |
| Tick | recvAtomic (PacketPtr pkt) override |
| Receive an atomic request packet from the peer. More... | |
| Tick | recvAtomicBackdoor (PacketPtr pkt, MemBackdoorPtr &backdoor) override |
| Receive an atomic request packet from the peer, and optionally provide a backdoor to the data being accessed. More... | |
| void | recvFunctional (PacketPtr pkt) override |
| Receive a functional request packet from the peer. More... | |
| AddrRangeList | getAddrRanges () const override |
| Get a list of the non-overlapping address ranges the owner is responsible for. More... | |
Protected Member Functions inherited from gem5::QueuedResponsePort | |
| 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... | |
Protected Member Functions inherited from gem5::ResponsePort | |
| void | responderUnbind () |
| Called by the request port to unbind. More... | |
| void | responderBind (RequestPort &request_port) |
| Called by the request 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... | |
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::AtomicResponseProtocol | |
| 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... | |
Protected Member Functions inherited from gem5::TimingResponseProtocol | |
| 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... | |
Protected Member Functions inherited from gem5::FunctionalResponseProtocol | |
| 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 | |
| NoncoherentXBar & | xbar |
| A reference to the crossbar to which this port belongs. More... | |
| RespPacketQueue | queue |
| A normal packet queue used to store responses. More... | |
Additional Inherited Members | |
Protected Attributes inherited from gem5::QueuedResponsePort | |
| RespPacketQueue & | respQueue |
| Packet queue used to store outgoing responses. More... | |
Protected Attributes inherited from gem5::ResponsePort | |
| 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... | |
Declaration of the non-coherent crossbar CPU-side port type, one will be instantiated for each of the memory-side ports connecting to the crossbar.
Definition at line 85 of file noncoherent_xbar.hh.
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inline |
Definition at line 97 of file noncoherent_xbar.hh.
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inlineoverrideprotectedvirtual |
Get a list of the non-overlapping address ranges the owner is responsible for.
All response ports must override this function and return a populated list with at least one item.
Implements gem5::ResponsePort.
Definition at line 130 of file noncoherent_xbar.hh.
References gem5::BaseXBar::getAddrRanges(), and xbar.
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inlineoverrideprotectedvirtual |
Receive an atomic request packet from the peer.
Implements gem5::AtomicResponseProtocol.
Definition at line 112 of file noncoherent_xbar.hh.
References gem5::NoncoherentXBar::recvAtomicBackdoor(), and xbar.
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inlineoverrideprotectedvirtual |
Receive an atomic request packet from the peer, and optionally provide a backdoor to the data being accessed.
Implements gem5::AtomicResponseProtocol.
Definition at line 118 of file noncoherent_xbar.hh.
References gem5::NoncoherentXBar::recvAtomicBackdoor(), and xbar.
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inlineoverrideprotectedvirtual |
Receive a functional request packet from the peer.
Implements gem5::FunctionalResponseProtocol.
Definition at line 124 of file noncoherent_xbar.hh.
References gem5::NoncoherentXBar::recvFunctional(), and xbar.
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inlineoverrideprotectedvirtual |
Receive a timing request from the peer.
Implements gem5::TimingResponseProtocol.
Definition at line 106 of file noncoherent_xbar.hh.
References gem5::NoncoherentXBar::recvTimingReq(), and xbar.
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private |
A normal packet queue used to store responses.
Definition at line 93 of file noncoherent_xbar.hh.
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private |
A reference to the crossbar to which this port belongs.
Definition at line 90 of file noncoherent_xbar.hh.
Referenced by getAddrRanges(), recvAtomic(), recvAtomicBackdoor(), recvFunctional(), and recvTimingReq().