1/* 2 * Copyright (c) 2012 ARM Limited 3 * All rights reserved 4 * 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. 13 * 14 * Copyright (c) 2002-2005 The Regents of The University of Michigan 15 * All rights reserved. 16 * 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. 27 * 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 36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 39 * 40 * Authors: Steve Reinhardt 41 * Andreas Hansson 42 * William Wang 43 */ 44 45/** 46 * @file 47 * Port object definitions. 48 */ 49#include "base/trace.hh" 50#include "mem/mem_object.hh" 51#include "mem/port.hh" 52
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53Port::Port(const std::string &_name, MemObject& _owner)
54 : portName(_name), peer(NULL), owner(_owner)
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53Port::Port(const std::string &_name, MemObject& _owner, PortId _id) 54 : portName(_name), id(_id), peer(NULL), owner(_owner) |
55{ 56} 57 58Port::~Port() 59{ 60} 61 62/** 63 * Master port 64 */
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65MasterPort::MasterPort(const std::string& name, MemObject* owner)
66 : Port(name, *owner), _slavePort(NULL)
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65MasterPort::MasterPort(const std::string& name, MemObject* owner, PortId _id) 66 : Port(name, *owner, _id), _slavePort(NULL) |
67{ 68} 69 70MasterPort::~MasterPort() 71{ 72} 73 74SlavePort& 75MasterPort::getSlavePort() const 76{ 77 if(_slavePort == NULL) 78 panic("Cannot getSlavePort on master port %s that is not connected\n", 79 name()); 80 81 return *_slavePort; 82} 83 84void 85MasterPort::bind(SlavePort& slave_port) 86{ 87 // master port keeps track of the slave port 88 _slavePort = &slave_port; 89 peer = &slave_port; 90 91 // slave port also keeps track of master port 92 _slavePort->bind(*this); 93} 94 95bool 96MasterPort::isConnected() const 97{ 98 return _slavePort != NULL; 99} 100 101unsigned 102MasterPort::peerBlockSize() const 103{ 104 return _slavePort->deviceBlockSize(); 105} 106 107Tick 108MasterPort::sendAtomic(PacketPtr pkt) 109{ 110 return _slavePort->recvAtomic(pkt); 111} 112 113void 114MasterPort::sendFunctional(PacketPtr pkt) 115{ 116 return _slavePort->recvFunctional(pkt); 117} 118 119void 120MasterPort::printAddr(Addr a) 121{ 122 Request req(a, 1, 0, Request::funcMasterId); 123 Packet pkt(&req, MemCmd::PrintReq); 124 Packet::PrintReqState prs(std::cerr); 125 pkt.senderState = &prs; 126 127 sendFunctional(&pkt); 128} 129 130/** 131 * Slave port 132 */
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133SlavePort::SlavePort(const std::string& name, MemObject* owner)
134 : Port(name, *owner), _masterPort(NULL)
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133SlavePort::SlavePort(const std::string& name, MemObject* owner, PortId id) 134 : Port(name, *owner, id), _masterPort(NULL) |
135{ 136} 137 138SlavePort::~SlavePort() 139{ 140} 141 142void 143SlavePort::bind(MasterPort& master_port) 144{ 145 _masterPort = &master_port; 146 peer = &master_port; 147} 148 149MasterPort& 150SlavePort::getMasterPort() const 151{ 152 if (_masterPort == NULL) 153 panic("Cannot getMasterPort on slave port %s that is not connected\n", 154 name()); 155 156 return *_masterPort; 157} 158 159unsigned 160SlavePort::peerBlockSize() const 161{ 162 return _masterPort->deviceBlockSize(); 163} 164 165bool 166SlavePort::isConnected() const 167{ 168 return _masterPort != NULL; 169} 170 171Tick 172SlavePort::sendAtomicSnoop(PacketPtr pkt) 173{ 174 return _masterPort->recvAtomicSnoop(pkt); 175} 176 177void 178SlavePort::sendFunctionalSnoop(PacketPtr pkt) 179{ 180 return _masterPort->recvFunctionalSnoop(pkt); 181}
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