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+
+/*
+ * Copyright (c) 1999-2005 Mark D. Hill and David A. Wood
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * $Id: MSI_MOSI_CMP_directory-msg.sm 1.5 05/01/19 15:48:37-06:00 mikem@royal16.cs.wisc.edu $
+ *
+ */
+
+// CoherenceRequestType
+enumeration(CoherenceRequestType, desc="...") {
+ GETX, desc="Get eXclusive";
+ UPGRADE, desc="UPGRADE to exclusive";
+ GETS, desc="Get Shared";
+ GET_INSTR, desc="Get Instruction";
+ INV, desc="INValidate";
+ PUTX, desc="replacement message";
+}
+
+// CoherenceResponseType
+enumeration(CoherenceResponseType, desc="...") {
+ MEMORY_ACK, desc="Ack from memory controller";
+ DATA, desc="Data";
+ DATA_EXCLUSIVE, desc="Data";
+ MEMORY_DATA, desc="Data";
+ ACK, desc="Generic invalidate ack";
+ WB_ACK, desc="writeback ack";
+ UNBLOCK, desc="unblock";
+ EXCLUSIVE_UNBLOCK, desc="exclusive unblock";
+}
+
+// RequestMsg
+structure(RequestMsg, desc="...", interface="NetworkMessage") {
+ Address Address, desc="Physical address for this request";
+ CoherenceRequestType Type, desc="Type of request (GetS, GetX, PutX, etc)";
+ AccessModeType AccessMode, desc="user/supervisor access type";
+ MachineID Requestor , desc="What component request";
+ NetDest Destination, desc="What components receive the request, includes MachineType and num";
+ MessageSizeType MessageSize, desc="size category of the message";
+ DataBlock DataBlk, desc="Data for the cache line (if PUTX)";
+ bool Dirty, default="false", desc="Dirty bit";
+ PrefetchBit Prefetch, desc="Is this a prefetch request";
+}
+
+// ResponseMsg
+structure(ResponseMsg, desc="...", interface="NetworkMessage") {
+ Address Address, desc="Physical address for this request";
+ CoherenceResponseType Type, desc="Type of response (Ack, Data, etc)";
+ MachineID Sender, desc="What component sent the data";
+ NetDest Destination, desc="Node to whom the data is sent";
+ DataBlock DataBlk, desc="Data for the cache line";
+ bool Dirty, default="false", desc="Dirty bit";
+ int AckCount, default="0", desc="number of acks in this message";
+ MessageSizeType MessageSize, desc="size category of the message";
+}
+
+/*
+GenericRequestType convertToGenericType(CoherenceRequestType type) {
+ if(type == CoherenceRequestType:PUTX) {
+ return GenericRequestType:PUTX;
+ } else if(type == CoherenceRequestType:GETS) {
+ return GenericRequestType:GETS;
+ } else if(type == CoherenceRequestType:GET_INSTR) {
+ return GenericRequestType:GET_INSTR;
+ } else if(type == CoherenceRequestType:GETX) {
+ return GenericRequestType:GETX;
+ } else if(type == CoherenceRequestType:UPGRADE) {
+ return GenericRequestType:UPGRADE;
+ } else if(type == CoherenceRequestType:PUTS) {
+ return GenericRequestType:PUTS;
+ } else if(type == CoherenceRequestType:INV) {
+ return GenericRequestType:INV;
+ } else if(type == CoherenceRequestType:INV_S) {
+ return GenericRequestType:INV_S;
+ } else if(type == CoherenceRequestType:L1_DG) {
+ return GenericRequestType:DOWNGRADE;
+ } else if(type == CoherenceRequestType:WB_ACK) {
+ return GenericRequestType:WB_ACK;
+ } else if(type == CoherenceRequestType:EXE_ACK) {
+ return GenericRequestType:EXE_ACK;
+ } else {
+ DEBUG_EXPR(type);
+ error("invalid CoherenceRequestType");
+ }
+}
+*/
+