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The simple timing port uses a queued port to implement recvFunctional and recvTimingReq through recvAtomic. More...
#include <tport.hh>
Public Member Functions | |
| SimpleTimingPort (const std::string &name, MemObject *owner) | |
| Create a new SimpleTimingPort that relies on a packet queue to hold responses, and implements recvTimingReq and recvFunctional through calls to recvAtomic. More... | |
| virtual | ~SimpleTimingPort () |
 Public Member Functions inherited from QueuedSlavePort | |
| QueuedSlavePort (const std::string &name, MemObject *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 | ~QueuedSlavePort () |
| void | schedTimingResp (PacketPtr pkt, Tick when, bool force_order=false) |
| Schedule the sending of a timing response. More... | |
| bool | checkFunctional (PacketPtr pkt) |
| Check the list of buffered packets against the supplied functional request. More... | |
| Public Member Functions inherited from SlavePort | |
| SlavePort (const std::string &name, MemObject *owner, PortID id=InvalidPortID) | |
| Slave port. More... | |
| virtual | ~SlavePort () |
| 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) |
| 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... | |
| 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... | |
| virtual AddrRangeList | getAddrRanges () const =0 |
| Get a list of the non-overlapping address ranges the owner is responsible for. More... | |
| Public Member Functions inherited from BaseSlavePort | |
| BaseMasterPort & | getMasterPort () const |
| bool | isConnected () const |
| Public Member Functions inherited from Port | |
| const std::string | name () const |
| Return port name (for DPRINTF). More... | |
| PortID | getId () const |
| Get the port id. More... | |
Protected Member Functions | |
| void | recvFunctional (PacketPtr pkt) |
| Implemented using recvAtomic(). More... | |
| bool | recvTimingReq (PacketPtr pkt) |
| Implemented using recvAtomic(). More... | |
| virtual Tick | recvAtomic (PacketPtr pkt)=0 |
| Receive an atomic request packet from the master port. More... | |
| Protected Member Functions inherited from QueuedSlavePort | |
| void | recvRespRetry () |
| Called by the master port if sendTimingResp was called on this slave port (causing recvTimingResp to be called on the master port) and was unsuccesful. More... | |
| Protected Member Functions inherited from SlavePort | |
| void | unbind () |
| Called by the master port to unbind. More... | |
| void | bind (MasterPort &master_port) |
| Called by the master port to bind. More... | |
| virtual bool | recvTimingSnoopResp (PacketPtr pkt) |
| Receive a timing snoop response from the master port. More... | |
| Protected Member Functions inherited from BaseSlavePort | |
| BaseSlavePort (const std::string &name, MemObject *owner, PortID id=InvalidPortID) | |
| virtual | ~BaseSlavePort () |
| Protected Member Functions inherited from Port | |
| Port (const std::string &_name, MemObject &_owner, PortID _id) | |
| Abstract base class for ports. More... | |
| virtual | ~Port () |
| Virtual destructor due to inheritance. More... | |
Protected Attributes | |
| std::unique_ptr< Packet > | pendingDelete |
| Upstream caches need this packet until true is returned, so hold it for deletion until a subsequent call. More... | |
| Protected Attributes inherited from QueuedSlavePort | |
| RespPacketQueue & | respQueue |
| Packet queue used to store outgoing responses. More... | |
| Protected Attributes inherited from BaseSlavePort | |
| BaseMasterPort * | _baseMasterPort |
| 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... | |
| MemObject & | owner |
| A reference to the MemObject that owns this port. More... | |
Private Attributes | |
| RespPacketQueue | queueImpl |
| The packet queue used to store outgoing responses. More... | |
The simple timing port uses a queued port to implement recvFunctional and recvTimingReq through recvAtomic.
It is always a slave port.
| SimpleTimingPort::SimpleTimingPort | ( | const std::string & | name, |
| MemObject * | owner | ||
| ) |
Create a new SimpleTimingPort that relies on a packet queue to hold responses, and implements recvTimingReq and recvFunctional through calls to recvAtomic.
Once a request arrives, it is passed to recvAtomic, and in the case of a timing access any response is scheduled to be sent after the delay of the atomic operation.
| name | port name |
| owner | structural owner |
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inlinevirtual |
Receive an atomic request packet from the master port.
Implements SlavePort.
Implemented in MessageSlavePort, and PioPort.
Referenced by recvFunctional(), and recvTimingReq().
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protectedvirtual |
Implemented using recvAtomic().
Implements SlavePort.
Definition at line 55 of file tport.cc.
References PacketQueue::checkFunctional(), recvAtomic(), and QueuedSlavePort::respQueue.
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protectedvirtual |
Implemented using recvAtomic().
Implements SlavePort.
Definition at line 64 of file tport.cc.
References Packet::cacheResponding(), curTick(), Packet::isResponse(), Packet::needsResponse(), panic, pendingDelete, recvAtomic(), and QueuedSlavePort::schedTimingResp().
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protected |
Upstream caches need this packet until true is returned, so hold it for deletion until a subsequent call.
Definition at line 87 of file tport.hh.
Referenced by recvTimingReq().
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private |
The packet queue used to store outgoing responses.
Note that the queue is made private and that we avoid overloading the name used in the QueuedSlavePort. Access is provided through the queue reference in the base class.