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40 * Authors: Steve Reinhardt
47 * Port object definitions.
49 #include "mem/port.hh"
51 #include "base/trace.hh"
52 #include "mem/mem_object.hh"
54 Port::Port(const std::string
&_name
, MemObject
& _owner
, PortID _id
)
55 : portName(_name
), id(_id
), owner(_owner
)
63 BaseMasterPort::BaseMasterPort(const std::string
& name
, MemObject
* owner
,
65 : Port(name
, *owner
, _id
), _baseSlavePort(NULL
)
69 BaseMasterPort::~BaseMasterPort()
74 BaseMasterPort::getSlavePort() const
76 if (_baseSlavePort
== NULL
)
77 panic("Cannot getSlavePort on master port %s that is not connected\n",
80 return *_baseSlavePort
;
84 BaseMasterPort::isConnected() const
86 return _baseSlavePort
!= NULL
;
89 BaseSlavePort::BaseSlavePort(const std::string
& name
, MemObject
* owner
,
91 : Port(name
, *owner
, _id
), _baseMasterPort(NULL
)
95 BaseSlavePort::~BaseSlavePort()
100 BaseSlavePort::getMasterPort() const
102 if (_baseMasterPort
== NULL
)
103 panic("Cannot getMasterPort on slave port %s that is not connected\n",
106 return *_baseMasterPort
;
110 BaseSlavePort::isConnected() const
112 return _baseMasterPort
!= NULL
;
118 MasterPort::MasterPort(const std::string
& name
, MemObject
* owner
, PortID _id
)
119 : BaseMasterPort(name
, owner
, _id
), _slavePort(NULL
)
123 MasterPort::~MasterPort()
128 MasterPort::bind(BaseSlavePort
& slave_port
)
130 // bind on the level of the base ports
131 _baseSlavePort
= &slave_port
;
133 // also attempt to base the slave to the appropriate type
134 SlavePort
* cast_slave_port
= dynamic_cast<SlavePort
*>(&slave_port
);
136 // if this port is compatible, then proceed with the binding
137 if (cast_slave_port
!= NULL
) {
138 // master port keeps track of the slave port
139 _slavePort
= cast_slave_port
;
140 // slave port also keeps track of master port
141 _slavePort
->bind(*this);
143 fatal("Master port %s cannot bind to %s\n", name(),
151 if (_slavePort
== NULL
)
152 panic("Attempting to unbind master port %s that is not connected\n",
154 _slavePort
->unbind();
156 _baseSlavePort
= NULL
;
160 MasterPort::getAddrRanges() const
162 return _slavePort
->getAddrRanges();
166 MasterPort::sendAtomic(PacketPtr pkt
)
168 assert(pkt
->isRequest());
169 return _slavePort
->recvAtomic(pkt
);
173 MasterPort::sendFunctional(PacketPtr pkt
)
175 assert(pkt
->isRequest());
176 return _slavePort
->recvFunctional(pkt
);
180 MasterPort::sendTimingReq(PacketPtr pkt
)
182 assert(pkt
->isRequest());
183 return _slavePort
->recvTimingReq(pkt
);
187 MasterPort::tryTiming(PacketPtr pkt
) const
189 assert(pkt
->isRequest());
190 return _slavePort
->tryTiming(pkt
);
194 MasterPort::sendTimingSnoopResp(PacketPtr pkt
)
196 assert(pkt
->isResponse());
197 return _slavePort
->recvTimingSnoopResp(pkt
);
201 MasterPort::sendRetryResp()
203 _slavePort
->recvRespRetry();
207 MasterPort::printAddr(Addr a
)
209 Request
req(a
, 1, 0, Request::funcMasterId
);
210 Packet
pkt(&req
, MemCmd::PrintReq
);
211 Packet::PrintReqState
prs(std::cerr
);
212 pkt
.senderState
= &prs
;
214 sendFunctional(&pkt
);
220 SlavePort::SlavePort(const std::string
& name
, MemObject
* owner
, PortID id
)
221 : BaseSlavePort(name
, owner
, id
), _masterPort(NULL
)
225 SlavePort::~SlavePort()
232 _baseMasterPort
= NULL
;
237 SlavePort::bind(MasterPort
& master_port
)
239 _baseMasterPort
= &master_port
;
240 _masterPort
= &master_port
;
244 SlavePort::sendAtomicSnoop(PacketPtr pkt
)
246 assert(pkt
->isRequest());
247 return _masterPort
->recvAtomicSnoop(pkt
);
251 SlavePort::sendFunctionalSnoop(PacketPtr pkt
)
253 assert(pkt
->isRequest());
254 return _masterPort
->recvFunctionalSnoop(pkt
);
258 SlavePort::sendTimingResp(PacketPtr pkt
)
260 assert(pkt
->isResponse());
261 return _masterPort
->recvTimingResp(pkt
);
265 SlavePort::sendTimingSnoopReq(PacketPtr pkt
)
267 assert(pkt
->isRequest());
268 _masterPort
->recvTimingSnoopReq(pkt
);
272 SlavePort::sendRetryReq()
274 _masterPort
->recvReqRetry();
278 SlavePort::sendRetrySnoopResp()
280 _masterPort
->recvRetrySnoopResp();