diff options
Diffstat (limited to 'src/mem/protocol/MOESI_CMP_directory-msg.sm')
| -rw-r--r-- | src/mem/protocol/MOESI_CMP_directory-msg.sm | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/mem/protocol/MOESI_CMP_directory-msg.sm b/src/mem/protocol/MOESI_CMP_directory-msg.sm new file mode 100644 index 000000000..08b4abec3 --- /dev/null +++ b/src/mem/protocol/MOESI_CMP_directory-msg.sm @@ -0,0 +1,126 @@ + +/* + * 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"; + PUTX, desc="Put eXclusive"; + PUTO, desc="Put Owned"; + PUTO_SHARERS, desc="Put Owned, but sharers exist so don't remove from sharers list"; + PUTS, desc="Put Shared"; + WB_ACK, desc="Writeback ack"; + WB_ACK_DATA, desc="Writeback ack"; + WB_NACK, desc="Writeback neg. ack"; + INV, desc="Invalidation"; +} + +// CoherenceResponseType +enumeration(CoherenceResponseType, desc="...") { + ACK, desc="ACKnowledgment, responder doesn't have a copy"; + DATA, desc="Data"; + DATA_EXCLUSIVE, desc="Data, no processor has a copy"; + UNBLOCK, desc="Unblock"; + UNBLOCK_EXCLUSIVE, desc="Unblock, we're in E/M"; + WRITEBACK_CLEAN_DATA, desc="Clean writeback (contains data)"; + WRITEBACK_CLEAN_ACK, desc="Clean writeback (contains no data)"; + WRITEBACK_DIRTY_DATA, desc="Dirty writeback (contains data)"; +} + +// TriggerType +enumeration(TriggerType, desc="...") { + ALL_ACKS, desc="See corresponding event"; +} + +// TriggerMsg +structure(TriggerMsg, desc="...", interface="Message") { + Address Address, desc="Physical address for this request"; + TriggerType Type, desc="Type of trigger"; +} + +// RequestMsg (and also forwarded requests) +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 component"; + NetDest Destination, desc="Multicast destination mask"; + int Acks, desc="How many acks to expect"; + MessageSizeType MessageSize, desc="size category of the message"; + AccessModeType AccessMode, desc="user/supervisor access type"; + PrefetchBit Prefetch, desc="Is this a prefetch request"; +} + +// ResponseMsg (and also unblock requests) +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="type of component sending msg"; + NetDest Destination, desc="Node to whom the data is sent"; + DataBlock DataBlk, desc="data for the cache line"; + bool Dirty, desc="Is the data dirty (different than memory)?"; + int Acks, desc="How many acks to expect"; + 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:GETX) { + return GenericRequestType:GETX; + } else if(type == CoherenceRequestType:PUTS) { + return GenericRequestType:PUTS; + } else if(type == CoherenceRequestType:PUTX) { + return GenericRequestType:PUTS; + } else if(type == CoherenceRequestType:PUTO) { + return GenericRequestType:PUTO; + } else if(type == CoherenceRequestType:PUTO_SHARERS) { + return GenericRequestType:PUTO; + } else if(type == CoherenceRequestType:INV) { + return GenericRequestType:INV; + } else if(type == CoherenceRequestType:WB_ACK) { + return GenericRequestType:WB_ACK; + } else if(type == CoherenceRequestType:WB_ACK_DATA) { + return GenericRequestType:WB_ACK; + } else if(type == CoherenceRequestType:WB_NACK) { + return GenericRequestType:NACK; + } else { + DEBUG_EXPR(type); + error("invalid CoherenceRequestType"); + } +} + |