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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.
*/
/*
* $Id$
*
*/
// CoherenceRequestType
enumeration(CoherenceRequestType, desc="...") {
GETX, desc="Get eXclusive";
GETS, desc="Get Shared";
}
// PersistentType
enumeration(PersistentRequestType, desc="...") {
GETX_PERSISTENT, desc="...";
GETS_PERSISTENT, desc="...";
DEACTIVATE_PERSISTENT,desc="...";
}
// CoherenceResponseType
enumeration(CoherenceResponseType, desc="...") {
DATA_OWNER, desc="Data";
ACK_OWNER, desc="data-less owner token";
DATA_SHARED, desc="Data";
ACK, desc="ACKnowledgment";
WB_TOKENS, desc="L1 to L2 writeback";
WB_SHARED_DATA, desc="L1 to L2 writeback with data";
WB_OWNED, desc="L1 to L2 writeback with data";
INV, desc="L1 informing L2 of loss of all tokens";
}
// TriggerType
enumeration(TriggerType, desc="...") {
REQUEST_TIMEOUT, desc="See corresponding event";
USE_TIMEOUT, desc="See corresponding event";
}
// TriggerMsg
structure(TriggerMsg, desc="...", interface="Message") {
Address Address, desc="Physical address for this request";
TriggerType Type, desc="Type of trigger";
}
// PersistentMsg
structure(PersistentMsg, desc="...", interface="NetworkMessage") {
Address Address, desc="Physical address for this request";
PersistentRequestType Type, desc="Type of starvation request";
MachineID Requestor, desc="Node who initiated the request";
MachineType RequestorMachine, desc="Type of machine who requested";
NetDest Destination, desc="Destination set";
MachineType DestMachine, desc="type of destination component";
MessageSizeType MessageSize, desc="size category of the message";
AccessModeType AccessMode, desc="user/supervisor access type";
PrefetchBit Prefetch, desc="Is this a prefetch request";
}
// RequestMsg
structure(RequestMsg, desc="...", interface="NetworkMessage") {
Address Address, desc="Physical address for this request";
CoherenceRequestType Type, desc="Type of request (GetS, GetX, PutX, etc)";
MachineID Requestor, desc="Node who initiated the request";
MachineType RequestorMachine, desc="Type of machine who requested";
MachineType DestMachine, desc="Type of destination machine";
NetDest Destination, desc="Multicast destination mask";
bool isLocal, desc="Is this request from a local L1";
int RetryNum, desc="retry sequence number";
MessageSizeType MessageSize, desc="size category of the message";
AccessModeType AccessMode, desc="user/supervisor access type";
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="Node who sent the data";
MachineType SenderMachine, desc="component that is sending";
NetDest Destination, desc="Node to whom the data is sent";
MachineType DestMachine, desc="What component receives the data";
int Tokens, desc="Number of tokens being transfered for this line";
DataBlock DataBlk, desc="data for the cache line";
bool Dirty, desc="Is the data dirty (different than memory)?";
MessageSizeType MessageSize, desc="size category of the message";
}
GenericRequestType convertToGenericType(CoherenceRequestType type) {
if(type == CoherenceRequestType:GETS) {
return GenericRequestType:GETS;
} else if(type == CoherenceRequestType:GETX) {
return GenericRequestType:GETX;
} else {
DEBUG_EXPR(type);
error("invalid CoherenceRequestType");
}
}
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