f1c3f3044b
In addition to obvious changes, this required a slight change to the slicc grammar to allow types with :: in them. Otherwise slicc barfs on std::string which we need for the headers that slicc generates.
116 lines
5.0 KiB
Plaintext
116 lines
5.0 KiB
Plaintext
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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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* $Id$
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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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UPGRADE, desc="UPGRADE to exclusive";
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GETS, desc="Get Shared";
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GET_INSTR, desc="Get Instruction";
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PUTX, desc="Put eXclusive";
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PUTS, desc="Put Shared";
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INV, desc="INValidate";
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INV_S, desc="INValidate the shared version";
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L1_DG, desc="L1 cache DownGrade";
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WB_ACK, desc="Write Back ACKnowledgment";
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EXE_ACK, desc="EXclusivE ACKnowledgment";
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}
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// CoherenceResponseType
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enumeration(CoherenceResponseType, desc="...") {
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ACK, desc="ACKnowledgment";
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INV_ACK, desc="INValidation ACKnowledgment";
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DG_ACK, desc="DownGrade ACKnowledgment";
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NACK, desc="Negative ACKnowledgment";
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DATA, desc="Data";
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DATA_S, desc="Data to L1 cache, then imediately go to shared state";
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DATA_I, desc="Data to L1 cache, then imediately go to inv state";
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FINALACK, desc="";
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}
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// RequestMsg
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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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AccessModeType AccessMode, desc="user/supervisor access type";
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MachineID RequestorMachId, desc="What component request";
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NetDest Destination, desc="What components receive the request, includes MachineType and num";
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DataBlock DataBlk, desc="Data for the cache line (if PUTX)";
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int NumPendingExtAcks, desc="Number of acks to wait for"; // Needed for forwarded responses only
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MessageSizeType MessageSize, desc="size category of the message";
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std::string L1CacheStateStr, desc="describes L1 cache block state";
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std::string L2CacheStateStr, desc="describes L2 cache block state";
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PrefetchBit Prefetch, desc="Is this a prefetch request";
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}
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// ResponseMsg
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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 SenderMachId, desc="What component 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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int NumPendingExtAcks, desc="Number of acks to wait for";
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MessageSizeType MessageSize, desc="size category of the message";
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}
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GenericRequestType convertToGenericType(CoherenceRequestType type) {
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if(type == CoherenceRequestType:PUTX) {
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return GenericRequestType:PUTX;
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} else if(type == CoherenceRequestType:GETS) {
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return GenericRequestType:GETS;
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} else if(type == CoherenceRequestType:GET_INSTR) {
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return GenericRequestType:GET_INSTR;
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} else if(type == CoherenceRequestType:GETX) {
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return GenericRequestType:GETX;
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} else if(type == CoherenceRequestType:UPGRADE) {
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return GenericRequestType:UPGRADE;
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} else if(type == CoherenceRequestType:PUTS) {
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return GenericRequestType:PUTS;
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} else if(type == CoherenceRequestType:INV) {
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return GenericRequestType:INV;
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} else if(type == CoherenceRequestType:INV_S) {
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return GenericRequestType:INV_S;
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} else if(type == CoherenceRequestType:L1_DG) {
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return GenericRequestType:DOWNGRADE;
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} else if(type == CoherenceRequestType:WB_ACK) {
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return GenericRequestType:WB_ACK;
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} else if(type == CoherenceRequestType:EXE_ACK) {
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return GenericRequestType:EXE_ACK;
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} else {
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DEBUG_EXPR(type);
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error("invalid CoherenceRequestType");
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}
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}
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