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) 2006 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 --- 106 unchanged lines hidden (view full) --- 128 backoffTime(0), minBackoffDelay(min_backoff), 129 maxBackoffDelay(max_backoff), inRetry(false), recvSnoops(recv_snoops), 130 backoffEvent(this) 131{ } 132 133bool 134DmaPort::recvTiming(PacketPtr pkt) 135{ |
136 assert(pkt->isResponse()); |
137 if (pkt->wasNacked()) { 138 DPRINTF(DMA, "Received nacked %s addr %#x\n", 139 pkt->cmdString(), pkt->getAddr()); 140 141 if (backoffTime < minBackoffDelay) 142 backoffTime = minBackoffDelay; 143 else if (backoffTime < maxBackoffDelay) 144 backoffTime <<= 1; 145 146 device->reschedule(backoffEvent, curTick() + backoffTime, true); 147 148 DPRINTF(DMA, "Backoff time set to %d ticks\n", backoffTime); 149 150 pkt->reinitNacked(); 151 queueDma(pkt, true); |
152 } else if (pkt->senderState) { 153 DmaReqState *state; 154 backoffTime >>= 2; 155 156 DPRINTF(DMA, "Received response %s addr %#x size %#x\n", 157 pkt->cmdString(), pkt->getAddr(), pkt->req->getSize()); 158 state = dynamic_cast<DmaReqState*>(pkt->senderState); 159 pendingCount--; --- 232 unchanged lines hidden --- |