63 lines
2.3 KiB
C++
63 lines
2.3 KiB
C++
/*
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* Copyright (c) 2008 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Gabe Black
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*/
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#include "mem/mport.hh"
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Tick
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MessagePort::recvAtomic(PacketPtr pkt)
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{
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if (pkt->cmd == MemCmd::MessageReq) {
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// We received a message.
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return recvMessage(pkt);
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} else if (pkt->cmd == MemCmd::MessageResp) {
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return recvResponse(pkt);
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} else if (pkt->wasNacked()) {
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return recvNack(pkt);
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} else if (pkt->isError()) {
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panic("Packet is error.\n");
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} else {
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panic("Unexpected memory command %s.\n", pkt->cmd.toString());
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}
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}
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void
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MessagePort::sendMessageTiming(PacketPtr pkt, Tick latency)
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{
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schedSendTiming(pkt, curTick + latency);
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}
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Tick
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MessagePort::sendMessageAtomic(PacketPtr pkt)
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{
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Tick latency = sendAtomic(pkt);
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assert(pkt->isResponse());
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latency += recvResponse(pkt);
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return latency;
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}
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