gem5 v24.0.0.0
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Public Member Functions | |
MemoryPort (const std::string &_name, SimpleMemory &_memory) | |
Public Member Functions inherited from gem5::ResponsePort | |
ResponsePort (const std::string &name, SimObject *_owner, PortID id=InvalidPortID) | |
Response port. | |
ResponsePort (const std::string &name, PortID id=InvalidPortID) | |
virtual | ~ResponsePort () |
bool | isSnooping () const |
Find out if the peer request port is snooping or not. | |
void | sendRangeChange () const |
Called by the owner to send a range change. | |
void | unbind () override |
We let the request port do the work, so these don't do anything. | |
void | bind (Port &peer) override |
Attach to a peer port. | |
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. | |
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. | |
bool | sendTimingResp (PacketPtr pkt) |
Attempt to send a timing response to the request port by calling its corresponding receive function. | |
void | sendTimingSnoopReq (PacketPtr pkt) |
Attempt to send a timing snoop request packet to the request port by calling its corresponding receive function. | |
void | sendRetryReq () |
Send a retry to the request port that previously attempted a sendTimingReq to this response port and failed. | |
void | sendRetrySnoopResp () |
Send a retry to the request port that previously attempted a sendTimingSnoopResp to this response port and failed. | |
Public Member Functions inherited from gem5::Port | |
virtual | ~Port () |
Virtual destructor due to inheritance. | |
Port & | getPeer () |
Return a reference to this port's peer. | |
const std::string | name () const |
Return port name (for DPRINTF). | |
PortID | getId () const |
Get the port id. | |
bool | isConnected () const |
Is this port currently connected to a peer? | |
void | takeOverFrom (Port *old) |
A utility function to make it easier to swap out ports. | |
Protected Member Functions | |
Tick | recvAtomic (PacketPtr pkt) override |
Receive an atomic request packet from the peer. | |
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. | |
void | recvFunctional (PacketPtr pkt) override |
Receive a functional request packet from the peer. | |
void | recvMemBackdoorReq (const MemBackdoorReq &req, MemBackdoorPtr &backdoor) override |
Receive a request for a back door to a range of memory. | |
bool | recvTimingReq (PacketPtr pkt) override |
Receive a timing request from the peer. | |
void | recvRespRetry () override |
Called by the peer if sendTimingResp was called on this protocol (causing recvTimingResp to be called on the peer) and was unsuccessful. | |
AddrRangeList | getAddrRanges () const override |
Get a list of the non-overlapping address ranges the owner is responsible for. | |
Protected Member Functions inherited from gem5::ResponsePort | |
void | responderUnbind () |
Called by the request port to unbind. | |
void | responderBind (RequestPort &request_port) |
Called by the request port to bind. | |
Tick | recvAtomicBackdoor (PacketPtr pkt, MemBackdoorPtr &backdoor) override |
Default implementations. | |
void | recvMemBackdoorReq (const MemBackdoorReq &req, MemBackdoorPtr &backdoor) override |
Receive a request for a back door to a range of memory. | |
bool | tryTiming (PacketPtr pkt) override |
Availability request from the peer. | |
bool | recvTimingSnoopResp (PacketPtr pkt) override |
Receive a timing snoop response from the peer. | |
Protected Member Functions inherited from gem5::Port | |
void | reportUnbound () const |
Port (const std::string &_name, PortID _id) | |
Abstract base class for ports. | |
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. | |
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. | |
void | sendSnoopReq (TimingRequestProtocol *peer, PacketPtr pkt) |
Attempt to send a timing snoop request packet to the peer by calling its corresponding receive function. | |
void | sendRetryReq (TimingRequestProtocol *peer) |
Send a retry to the peer that previously attempted a sendTimingReq to this protocol and failed. | |
void | sendRetrySnoopResp (TimingRequestProtocol *peer) |
Send a retry to the peer that previously attempted a sendTimingSnoopResp to this peer and failed. | |
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. | |
Private Attributes | |
SimpleMemory & | mem |
Additional Inherited Members | |
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. | |
Port * | _peer |
A pointer to this port's peer. | |
bool | _connected |
Whether this port is currently connected to a peer port. | |
Definition at line 88 of file simple_mem.hh.
gem5::memory::SimpleMemory::MemoryPort::MemoryPort | ( | const std::string & | _name, |
SimpleMemory & | _memory ) |
Definition at line 272 of file simple_mem.cc.
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overrideprotectedvirtual |
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 278 of file simple_mem.cc.
References mem.
Receive an atomic request packet from the peer.
Implements gem5::AtomicResponseProtocol.
Definition at line 286 of file simple_mem.cc.
References mem.
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overrideprotectedvirtual |
Receive an atomic request packet from the peer, and optionally provide a backdoor to the data being accessed.
Implements gem5::AtomicResponseProtocol.
Definition at line 292 of file simple_mem.cc.
References mem.
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overrideprotectedvirtual |
Receive a functional request packet from the peer.
Implements gem5::FunctionalResponseProtocol.
Definition at line 299 of file simple_mem.cc.
References mem.
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overrideprotectedvirtual |
Receive a request for a back door to a range of memory.
req | An object which describes what back door is being requested. |
backdoor | Can be set to a back door pointer by the target to let caller have direct access to the requested range. |
Implements gem5::FunctionalResponseProtocol.
Definition at line 305 of file simple_mem.cc.
References gem5::memory::AbstractMemory::backdoor, and mem.
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overrideprotectedvirtual |
Called by the peer if sendTimingResp was called on this protocol (causing recvTimingResp to be called on the peer) and was unsuccessful.
Implements gem5::TimingResponseProtocol.
Definition at line 318 of file simple_mem.cc.
References mem.
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overrideprotectedvirtual |
Receive a timing request from the peer.
Implements gem5::TimingResponseProtocol.
Definition at line 312 of file simple_mem.cc.
References mem.
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private |
Definition at line 91 of file simple_mem.hh.