93 lines
4.1 KiB
Text
93 lines
4.1 KiB
Text
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/*
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* Copyright (c) 1999-2005 Mark D. Hill and David A. Wood
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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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/*
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* $Id: MOESI_SMP_directory-msg.sm 1.8 05/01/19 15:48:36-06:00 mikem@royal16.cs.wisc.edu $
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*
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*/
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// CoherenceRequestType
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enumeration(CoherenceRequestType, desc="...") {
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GETX, desc="Get eXclusive";
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GETS, desc="Get Shared";
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PUTX, desc="Put eXclusive";
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PUTO, desc="Put Owned";
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WB_ACK, desc="Writeback ack";
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WB_NACK, desc="Writeback neg. ack";
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INV, desc="Invalidation";
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FWD, desc="Generic FWD";
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}
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// CoherenceResponseType
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enumeration(CoherenceResponseType, desc="...") {
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ACK, desc="ACKnowledgment, responder doesn't have a copy";
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DATA, desc="Data";
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DATA_EXCLUSIVE_CLEAN, desc="Data, no other processor has a copy, data is clean";
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DATA_EXCLUSIVE_DIRTY, desc="Data, no other processor has a copy, data is dirty";
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UNBLOCK, desc="Unblock";
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UNBLOCK_EXCLUSIVE, desc="Unblock, we're in E/M";
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WRITEBACK_CLEAN, desc="Clean writeback (no data)";
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WRITEBACK_DIRTY, desc="Dirty writeback (contains data)";
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WRITEBACK, desc="Generic writeback (contains data)";
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}
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// TriggerType
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enumeration(TriggerType, desc="...") {
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ALL_ACKS, desc="See corresponding event";
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}
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// TriggerMsg
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structure(TriggerMsg, desc="...", interface="Message") {
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Address Address, desc="Physical address for this request";
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TriggerType Type, desc="Type of trigger";
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}
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// RequestMsg (and also forwarded requests)
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structure(RequestMsg, desc="...", interface="NetworkMessage") {
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Address Address, desc="Physical address for this request";
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CoherenceRequestType Type, desc="Type of request (GetS, GetX, PutX, etc)";
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MachineID Requestor, desc="Node who initiated the request";
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NetDest Destination, desc="Multicast destination mask";
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int Acks, desc="How many acks to expect";
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DataBlock DataBlk, desc="data for the cache line";
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MessageSizeType MessageSize, desc="size category of the message";
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}
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// ResponseMsg (and also unblock requests)
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structure(ResponseMsg, desc="...", interface="NetworkMessage") {
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Address Address, desc="Physical address for this request";
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CoherenceResponseType Type, desc="Type of response (Ack, Data, etc)";
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MachineID Sender, desc="Node who sent the data";
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NetDest Destination, desc="Node to whom the data is sent";
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DataBlock DataBlk, desc="data for the cache line";
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bool Dirty, desc="Is the data dirty (different than memory)?";
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int Acks, desc="How many acks to expect";
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MessageSizeType MessageSize, desc="size category of the message";
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}
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