2 * Copyright (c) 2012 ARM Limited
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
14 * Copyright (c) 2002-2005 The Regents of The University of Michigan
15 * All rights reserved.
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions are
19 * met: redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer;
21 * redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution;
24 * neither the name of the copyright holders nor the names of its
25 * contributors may be used to endorse or promote products derived from
26 * this software without specific prior written permission.
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40 * Authors: Steve Reinhardt
47 * Port object definitions.
49 #include "base/trace.hh"
50 #include "mem/mem_object.hh"
51 #include "mem/port.hh"
53 Port::Port(const std::string
&_name
, MemObject
& _owner
, PortId _id
)
54 : portName(_name
), id(_id
), peer(NULL
), owner(_owner
)
65 MasterPort::MasterPort(const std::string
& name
, MemObject
* owner
, PortId _id
)
66 : Port(name
, *owner
, _id
), _slavePort(NULL
)
70 MasterPort::~MasterPort()
75 MasterPort::getSlavePort() const
77 if(_slavePort
== NULL
)
78 panic("Cannot getSlavePort on master port %s that is not connected\n",
85 MasterPort::bind(SlavePort
& slave_port
)
87 // master port keeps track of the slave port
88 _slavePort
= &slave_port
;
91 // slave port also keeps track of master port
92 _slavePort
->bind(*this);
96 MasterPort::isConnected() const
98 return _slavePort
!= NULL
;
102 MasterPort::peerBlockSize() const
104 return _slavePort
->deviceBlockSize();
108 MasterPort::sendAtomic(PacketPtr pkt
)
110 assert(pkt
->isRequest());
111 return _slavePort
->recvAtomic(pkt
);
115 MasterPort::sendFunctional(PacketPtr pkt
)
117 assert(pkt
->isRequest());
118 return _slavePort
->recvFunctional(pkt
);
122 MasterPort::sendTimingReq(PacketPtr pkt
)
124 assert(pkt
->isRequest());
125 return _slavePort
->recvTimingReq(pkt
);
129 MasterPort::sendTimingSnoopResp(PacketPtr pkt
)
131 assert(pkt
->isResponse());
132 return _slavePort
->recvTimingSnoopResp(pkt
);
136 MasterPort::printAddr(Addr a
)
138 Request
req(a
, 1, 0, Request::funcMasterId
);
139 Packet
pkt(&req
, MemCmd::PrintReq
);
140 Packet::PrintReqState
prs(std::cerr
);
141 pkt
.senderState
= &prs
;
143 sendFunctional(&pkt
);
149 SlavePort::SlavePort(const std::string
& name
, MemObject
* owner
, PortId id
)
150 : Port(name
, *owner
, id
), _masterPort(NULL
)
154 SlavePort::~SlavePort()
159 SlavePort::bind(MasterPort
& master_port
)
161 _masterPort
= &master_port
;
166 SlavePort::getMasterPort() const
168 if (_masterPort
== NULL
)
169 panic("Cannot getMasterPort on slave port %s that is not connected\n",
176 SlavePort::peerBlockSize() const
178 return _masterPort
->deviceBlockSize();
182 SlavePort::isConnected() const
184 return _masterPort
!= NULL
;
188 SlavePort::sendAtomicSnoop(PacketPtr pkt
)
190 assert(pkt
->isRequest());
191 return _masterPort
->recvAtomicSnoop(pkt
);
195 SlavePort::sendFunctionalSnoop(PacketPtr pkt
)
197 assert(pkt
->isRequest());
198 return _masterPort
->recvFunctionalSnoop(pkt
);
202 SlavePort::sendTimingResp(PacketPtr pkt
)
204 assert(pkt
->isResponse());
205 return _masterPort
->recvTimingResp(pkt
);
209 SlavePort::sendTimingSnoopReq(PacketPtr pkt
)
211 assert(pkt
->isRequest());
212 _masterPort
->recvTimingSnoopReq(pkt
);