diff options
Diffstat (limited to 'src/mem/protocol/MESI_CMP_filter_directory-msg.sm')
| -rw-r--r-- | src/mem/protocol/MESI_CMP_filter_directory-msg.sm | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/src/mem/protocol/MESI_CMP_filter_directory-msg.sm b/src/mem/protocol/MESI_CMP_filter_directory-msg.sm new file mode 100644 index 000000000..a888e2450 --- /dev/null +++ b/src/mem/protocol/MESI_CMP_filter_directory-msg.sm @@ -0,0 +1,153 @@ + +/* + * 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"; + GETX_ESCAPE, desc="Get eXclusive, while in escape action"; + UPGRADE, desc="UPGRADE to exclusive"; + GETS, desc="Get Shared"; + GETS_ESCAPE, desc="Get Shared, while in escape action"; + GET_INSTR, desc="Get Instruction"; + GET_INSTR_ESCAPE, desc="Get Instruction, while in escape action"; + INV, desc="INValidate, could be NACKed"; + INV_ESCAPE, desc="INValidate, cannot be NACKed"; + PUTX, desc="replacement message, for writeback to lower caches"; + PUTS, desc="clean replacement message, for writeback to lower caches"; + REPLACE, desc="replacement message, from lowest cache"; + CHECK_WRITE_FILTER, desc="check write filter message"; + CHECK_READ_WRITE_FILTER, desc="check both read and write filters message"; +} + +// CoherenceResponseType +enumeration(CoherenceResponseType, desc="...") { + MEMORY_ACK, desc="Ack from memory controller"; + DATA, desc="Data"; + DATA_EXCLUSIVE, desc="Data"; + L2_DATA, desc="data from L2, in shared mode"; + L2_DATA_EXCLUSIVE, desc="data from L2, in exclusive mode"; + MEMORY_DATA, desc="Data"; + ACK, desc="Generic invalidate ack"; + NACK, desc="NACK used to maintain transactional isolation"; + WB_ACK, desc="writeback ack"; + UNBLOCK, desc="unblock"; + EXCLUSIVE_UNBLOCK, desc="exclusive unblock"; + UNBLOCK_CANCEL, desc="unblock when trans. request fails"; +} + +// RequestMsg +structure(RequestMsg, desc="...", interface="NetworkMessage") { + Address Address, desc="Line address for this request"; + Address PhysicalAddress, 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"; + uint64 Timestamp, desc="TLR-like Timestamp"; +} + +// ResponseMsg +structure(ResponseMsg, desc="...", interface="NetworkMessage") { + Address Address, desc="Line address for this request"; + Address PhysicalAddress, 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"; + uint64 Timestamp, desc="TLR-like Timestamp"; + NetDest Nackers, desc="The nodes which sent NACKs to requestor"; + bool Transactional, desc="Whether this address was transactional"; + bool RemoveLastOwnerFromDir, desc="To solve some races with PUTX/GETS"; + MachineID LastOwnerID, desc="What component sent the data"; +} + +// TriggerType +enumeration(TriggerType, desc="...") { + ALL_ACKS, desc="When all acks/nacks have been received"; +} + +// TriggerMsg +structure(TriggerMsg, desc="...", interface="Message") { + Address Address, desc="Line address for this request"; + Address PhysicalAddress, desc="Physical address for this request"; + TriggerType Type, desc="Type of trigger"; +} + +/* + 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, for writeback to lower caches"; + REPLACE, desc="replacement message, from lowest cache"; + CHECK_WRITE_FILTER, desc="check write filter message"; + CHECK_READ_WRITE_FILTER, desc="check both read and write filters message"; +*/ + +GenericRequestType convertToGenericType(CoherenceRequestType type) { + if(type == CoherenceRequestType:PUTX) { + return GenericRequestType:PUTX; + } else if(type == CoherenceRequestType:GETS) { + return GenericRequestType:GETS; + } else if(type == CoherenceRequestType:GETS_ESCAPE) { + return GenericRequestType:GETS; + } else if(type == CoherenceRequestType:GET_INSTR) { + return GenericRequestType:GET_INSTR; + } else if(type == CoherenceRequestType:GET_INSTR_ESCAPE) { + return GenericRequestType:GET_INSTR; + } else if(type == CoherenceRequestType:GETX) { + return GenericRequestType:GETX; + } else if(type == CoherenceRequestType:GETX_ESCAPE) { + return GenericRequestType:GETX; + } else if(type == CoherenceRequestType:UPGRADE) { + return GenericRequestType:UPGRADE; + } else if(type == CoherenceRequestType:INV) { + return GenericRequestType:INV; + } else if( type == CoherenceRequestType:REPLACE) { + return GenericRequestType:REPLACEMENT; + } else { + DEBUG_EXPR(type); + error("invalid CoherenceRequestType"); + } +} + + |