tport.cc revision 2914
12810SN/A/* 22810SN/A * Copyright (c) 2006 The Regents of The University of Michigan 32810SN/A * All rights reserved. 42810SN/A * 52810SN/A * Redistribution and use in source and binary forms, with or without 62810SN/A * modification, are permitted provided that the following conditions are 72810SN/A * met: redistributions of source code must retain the above copyright 82810SN/A * notice, this list of conditions and the following disclaimer; 92810SN/A * redistributions in binary form must reproduce the above copyright 102810SN/A * notice, this list of conditions and the following disclaimer in the 112810SN/A * documentation and/or other materials provided with the distribution; 122810SN/A * neither the name of the copyright holders nor the names of its 132810SN/A * contributors may be used to endorse or promote products derived from 142810SN/A * this software without specific prior written permission. 152810SN/A * 162810SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 172810SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 182810SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 192810SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 202810SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 212810SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 222810SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 232810SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 242810SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 252810SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 262810SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272810SN/A * 282810SN/A * Authors: Ali Saidi 292810SN/A */ 302810SN/A 312810SN/A#include "mem/tport.hh" 322810SN/A 332810SN/Avoid 342810SN/ASimpleTimingPort::recvRetry() 352810SN/A{ 362810SN/A bool result = true; 372810SN/A while (result && transmitList.size()) { 382810SN/A result = Port::sendTiming(transmitList.front()); 392810SN/A if (result) 404666SN/A transmitList.pop_front(); 412810SN/A } 425338Sstever@gmail.com if (transmitList.size() == 0 && drainEvent) { 434167SN/A drainEvent->process(); 442810SN/A drainEvent = NULL; 452810SN/A } 462810SN/A} 472810SN/A 482810SN/Avoid 492810SN/ASimpleTimingPort::SendEvent::process() 502810SN/A{ 512810SN/A port->outTiming--; 522810SN/A assert(port->outTiming >= 0); 532810SN/A if (port->Port::sendTiming(packet)) 542813SN/A if (port->transmitList.size() == 0 && port->drainEvent) { 554903SN/A port->drainEvent->process(); 564903SN/A port->drainEvent = NULL; 572810SN/A } 582810SN/A return; 594903SN/A 604903SN/A port->transmitList.push_back(packet); 614903SN/A} 624903SN/A 634903SN/Avoid 644903SN/ASimpleTimingPort::resendNacked(Packet *pkt) { 654903SN/A pkt->reinitNacked(); 664908SN/A if (transmitList.size()) { 675875Ssteve.reinhardt@amd.com transmitList.push_front(pkt); 684903SN/A } else { 695875Ssteve.reinhardt@amd.com if (!Port::sendTiming(pkt)) 704903SN/A transmitList.push_front(pkt); 714903SN/A } 724903SN/A}; 734903SN/A 744903SN/A 754903SN/Aunsigned int 764903SN/ASimpleTimingPort::drain(Event *de) 775318SN/A{ 784908SN/A if (outTiming == 0 && transmitList.size() == 0) 795318SN/A return 0; 804908SN/A drainEvent = de; 814908SN/A return 1; 824908SN/A} 834908SN/A