tport.cc revision 2914
12914Ssaidi@eecs.umich.edu/* 22914Ssaidi@eecs.umich.edu * Copyright (c) 2006 The Regents of The University of Michigan 32914Ssaidi@eecs.umich.edu * All rights reserved. 42914Ssaidi@eecs.umich.edu * 52914Ssaidi@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 62914Ssaidi@eecs.umich.edu * modification, are permitted provided that the following conditions are 72914Ssaidi@eecs.umich.edu * met: redistributions of source code must retain the above copyright 82914Ssaidi@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 92914Ssaidi@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 102914Ssaidi@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 112914Ssaidi@eecs.umich.edu * documentation and/or other materials provided with the distribution; 122914Ssaidi@eecs.umich.edu * neither the name of the copyright holders nor the names of its 132914Ssaidi@eecs.umich.edu * contributors may be used to endorse or promote products derived from 142914Ssaidi@eecs.umich.edu * this software without specific prior written permission. 152914Ssaidi@eecs.umich.edu * 162914Ssaidi@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 172914Ssaidi@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 182914Ssaidi@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 192914Ssaidi@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 202914Ssaidi@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 212914Ssaidi@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 222914Ssaidi@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 232914Ssaidi@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 242914Ssaidi@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 252914Ssaidi@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 262914Ssaidi@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272914Ssaidi@eecs.umich.edu * 282914Ssaidi@eecs.umich.edu * Authors: Ali Saidi 292914Ssaidi@eecs.umich.edu */ 302914Ssaidi@eecs.umich.edu 312914Ssaidi@eecs.umich.edu#include "mem/tport.hh" 322914Ssaidi@eecs.umich.edu 332914Ssaidi@eecs.umich.eduvoid 342914Ssaidi@eecs.umich.eduSimpleTimingPort::recvRetry() 352914Ssaidi@eecs.umich.edu{ 362914Ssaidi@eecs.umich.edu bool result = true; 372914Ssaidi@eecs.umich.edu while (result && transmitList.size()) { 382914Ssaidi@eecs.umich.edu result = Port::sendTiming(transmitList.front()); 392914Ssaidi@eecs.umich.edu if (result) 402914Ssaidi@eecs.umich.edu transmitList.pop_front(); 412914Ssaidi@eecs.umich.edu } 422914Ssaidi@eecs.umich.edu if (transmitList.size() == 0 && drainEvent) { 432914Ssaidi@eecs.umich.edu drainEvent->process(); 442914Ssaidi@eecs.umich.edu drainEvent = NULL; 452914Ssaidi@eecs.umich.edu } 462914Ssaidi@eecs.umich.edu} 472914Ssaidi@eecs.umich.edu 482914Ssaidi@eecs.umich.eduvoid 492914Ssaidi@eecs.umich.eduSimpleTimingPort::SendEvent::process() 502914Ssaidi@eecs.umich.edu{ 512914Ssaidi@eecs.umich.edu port->outTiming--; 522914Ssaidi@eecs.umich.edu assert(port->outTiming >= 0); 532914Ssaidi@eecs.umich.edu if (port->Port::sendTiming(packet)) 542914Ssaidi@eecs.umich.edu if (port->transmitList.size() == 0 && port->drainEvent) { 552914Ssaidi@eecs.umich.edu port->drainEvent->process(); 562914Ssaidi@eecs.umich.edu port->drainEvent = NULL; 572914Ssaidi@eecs.umich.edu } 582914Ssaidi@eecs.umich.edu return; 592914Ssaidi@eecs.umich.edu 602914Ssaidi@eecs.umich.edu port->transmitList.push_back(packet); 612914Ssaidi@eecs.umich.edu} 622914Ssaidi@eecs.umich.edu 632914Ssaidi@eecs.umich.eduvoid 642914Ssaidi@eecs.umich.eduSimpleTimingPort::resendNacked(Packet *pkt) { 652914Ssaidi@eecs.umich.edu pkt->reinitNacked(); 662914Ssaidi@eecs.umich.edu if (transmitList.size()) { 672914Ssaidi@eecs.umich.edu transmitList.push_front(pkt); 682914Ssaidi@eecs.umich.edu } else { 692914Ssaidi@eecs.umich.edu if (!Port::sendTiming(pkt)) 702914Ssaidi@eecs.umich.edu transmitList.push_front(pkt); 712914Ssaidi@eecs.umich.edu } 722914Ssaidi@eecs.umich.edu}; 732914Ssaidi@eecs.umich.edu 742914Ssaidi@eecs.umich.edu 752914Ssaidi@eecs.umich.eduunsigned int 762914Ssaidi@eecs.umich.eduSimpleTimingPort::drain(Event *de) 772914Ssaidi@eecs.umich.edu{ 782914Ssaidi@eecs.umich.edu if (outTiming == 0 && transmitList.size() == 0) 792914Ssaidi@eecs.umich.edu return 0; 802914Ssaidi@eecs.umich.edu drainEvent = de; 812914Ssaidi@eecs.umich.edu return 1; 822914Ssaidi@eecs.umich.edu} 83