port.cc revision 8922
12405SN/A/* 28922Swilliam.wang@arm.com * Copyright (c) 2012 ARM Limited 38922Swilliam.wang@arm.com * All rights reserved 48922Swilliam.wang@arm.com * 58922Swilliam.wang@arm.com * The license below extends only to copyright in the software and shall 68922Swilliam.wang@arm.com * not be construed as granting a license to any other intellectual 78922Swilliam.wang@arm.com * property including but not limited to intellectual property relating 88922Swilliam.wang@arm.com * to a hardware implementation of the functionality of the software 98922Swilliam.wang@arm.com * licensed hereunder. You may use the software subject to the license 108922Swilliam.wang@arm.com * terms below provided that you ensure that this notice is replicated 118922Swilliam.wang@arm.com * unmodified and in its entirety in all distributions of the software, 128922Swilliam.wang@arm.com * modified or unmodified, in source code or in binary form. 138922Swilliam.wang@arm.com * 142405SN/A * Copyright (c) 2002-2005 The Regents of The University of Michigan 152405SN/A * All rights reserved. 162405SN/A * 172405SN/A * Redistribution and use in source and binary forms, with or without 182405SN/A * modification, are permitted provided that the following conditions are 192405SN/A * met: redistributions of source code must retain the above copyright 202405SN/A * notice, this list of conditions and the following disclaimer; 212405SN/A * redistributions in binary form must reproduce the above copyright 222405SN/A * notice, this list of conditions and the following disclaimer in the 232405SN/A * documentation and/or other materials provided with the distribution; 242405SN/A * neither the name of the copyright holders nor the names of its 252405SN/A * contributors may be used to endorse or promote products derived from 262405SN/A * this software without specific prior written permission. 272405SN/A * 282405SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 292405SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 302405SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 312405SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 322405SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 332405SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 342405SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 352405SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 362405SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 372405SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 382405SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 392665Ssaidi@eecs.umich.edu * 402665Ssaidi@eecs.umich.edu * Authors: Steve Reinhardt 418922Swilliam.wang@arm.com * Andreas Hansson 428922Swilliam.wang@arm.com * William Wang 432405SN/A */ 442405SN/A 452405SN/A/** 462982Sstever@eecs.umich.edu * @file 472982Sstever@eecs.umich.edu * Port object definitions. 482405SN/A */ 492642Sstever@eecs.umich.edu#include "base/trace.hh" 504190Ssaidi@eecs.umich.edu#include "mem/mem_object.hh" 512405SN/A#include "mem/port.hh" 522405SN/A 538922Swilliam.wang@arm.comPort::Port(const std::string &_name, MemObject& _owner) 548709Sandreas.hansson@arm.com : portName(_name), peer(NULL), owner(_owner) 555476Snate@binkert.org{ 565476Snate@binkert.org} 575476Snate@binkert.org 585476Snate@binkert.orgPort::~Port() 595283Sgblack@eecs.umich.edu{ 605283Sgblack@eecs.umich.edu} 615283Sgblack@eecs.umich.edu 628922Swilliam.wang@arm.com/** 638922Swilliam.wang@arm.com * Master port 648922Swilliam.wang@arm.com */ 658922Swilliam.wang@arm.comMasterPort::MasterPort(const std::string& name, MemObject* owner) 668922Swilliam.wang@arm.com : Port(name, *owner), _slavePort(NULL) 672642Sstever@eecs.umich.edu{ 688922Swilliam.wang@arm.com} 695476Snate@binkert.org 708922Swilliam.wang@arm.comMasterPort::~MasterPort() 718922Swilliam.wang@arm.com{ 728922Swilliam.wang@arm.com} 738922Swilliam.wang@arm.com 748922Swilliam.wang@arm.comSlavePort& 758922Swilliam.wang@arm.comMasterPort::getSlavePort() const 768922Swilliam.wang@arm.com{ 778922Swilliam.wang@arm.com if(_slavePort == NULL) 788922Swilliam.wang@arm.com panic("Cannot getSlavePort on master port %s that is not connected\n", 798922Swilliam.wang@arm.com name()); 808922Swilliam.wang@arm.com 818922Swilliam.wang@arm.com return *_slavePort; 822642Sstever@eecs.umich.edu} 832642Sstever@eecs.umich.edu 842642Sstever@eecs.umich.eduvoid 858922Swilliam.wang@arm.comMasterPort::bind(SlavePort& slave_port) 865605Snate@binkert.org{ 878922Swilliam.wang@arm.com // master port keeps track of the slave port 888922Swilliam.wang@arm.com _slavePort = &slave_port; 898922Swilliam.wang@arm.com peer = &slave_port; 908922Swilliam.wang@arm.com 918922Swilliam.wang@arm.com // slave port also keeps track of master port 928922Swilliam.wang@arm.com _slavePort->bind(*this); 935605Snate@binkert.org} 945605Snate@binkert.org 958922Swilliam.wang@arm.combool 968922Swilliam.wang@arm.comMasterPort::isConnected() const 978922Swilliam.wang@arm.com{ 988922Swilliam.wang@arm.com return _slavePort != NULL; 998922Swilliam.wang@arm.com} 1008922Swilliam.wang@arm.com 1018922Swilliam.wang@arm.comunsigned 1028922Swilliam.wang@arm.comMasterPort::peerBlockSize() const 1038922Swilliam.wang@arm.com{ 1048922Swilliam.wang@arm.com return _slavePort->deviceBlockSize(); 1058922Swilliam.wang@arm.com} 1068922Swilliam.wang@arm.com 1078922Swilliam.wang@arm.com void 1088922Swilliam.wang@arm.comMasterPort::printAddr(Addr a) 1095314Sstever@gmail.com{ 1108832SAli.Saidi@ARM.com Request req(a, 1, 0, Request::funcMasterId); 1115314Sstever@gmail.com Packet pkt(&req, MemCmd::PrintReq, Packet::Broadcast); 1125314Sstever@gmail.com Packet::PrintReqState prs(std::cerr); 1135314Sstever@gmail.com pkt.senderState = &prs; 1145314Sstever@gmail.com 1155314Sstever@gmail.com sendFunctional(&pkt); 1165314Sstever@gmail.com} 1178922Swilliam.wang@arm.com 1188922Swilliam.wang@arm.com/** 1198922Swilliam.wang@arm.com * Slave port 1208922Swilliam.wang@arm.com */ 1218922Swilliam.wang@arm.comSlavePort::SlavePort(const std::string& name, MemObject* owner) 1228922Swilliam.wang@arm.com : Port(name, *owner), _masterPort(NULL) 1238922Swilliam.wang@arm.com{ 1248922Swilliam.wang@arm.com} 1258922Swilliam.wang@arm.com 1268922Swilliam.wang@arm.comSlavePort::~SlavePort() 1278922Swilliam.wang@arm.com{ 1288922Swilliam.wang@arm.com} 1298922Swilliam.wang@arm.com 1308922Swilliam.wang@arm.comvoid 1318922Swilliam.wang@arm.comSlavePort::bind(MasterPort& master_port) 1328922Swilliam.wang@arm.com{ 1338922Swilliam.wang@arm.com _masterPort = &master_port; 1348922Swilliam.wang@arm.com peer = &master_port; 1358922Swilliam.wang@arm.com} 1368922Swilliam.wang@arm.com 1378922Swilliam.wang@arm.comMasterPort& 1388922Swilliam.wang@arm.comSlavePort::getMasterPort() const 1398922Swilliam.wang@arm.com{ 1408922Swilliam.wang@arm.com if (_masterPort == NULL) 1418922Swilliam.wang@arm.com panic("Cannot getMasterPort on slave port %s that is not connected\n", 1428922Swilliam.wang@arm.com name()); 1438922Swilliam.wang@arm.com 1448922Swilliam.wang@arm.com return *_masterPort; 1458922Swilliam.wang@arm.com} 1468922Swilliam.wang@arm.com 1478922Swilliam.wang@arm.comunsigned 1488922Swilliam.wang@arm.comSlavePort::peerBlockSize() const 1498922Swilliam.wang@arm.com{ 1508922Swilliam.wang@arm.com return _masterPort->deviceBlockSize(); 1518922Swilliam.wang@arm.com} 1528922Swilliam.wang@arm.com 1538922Swilliam.wang@arm.combool 1548922Swilliam.wang@arm.comSlavePort::isConnected() const 1558922Swilliam.wang@arm.com{ 1568922Swilliam.wang@arm.com return _masterPort != NULL; 1578922Swilliam.wang@arm.com} 158