GPU_VIPER-TCC.sm revision 14184
114184Sgabeblack@google.com/* 214184Sgabeblack@google.com * Copyright (c) 2010-2015 Advanced Micro Devices, Inc. 314184Sgabeblack@google.com * All rights reserved. 414184Sgabeblack@google.com * 514184Sgabeblack@google.com * For use for simulation and test purposes only 614184Sgabeblack@google.com * 714184Sgabeblack@google.com * Redistribution and use in source and binary forms, with or without 814184Sgabeblack@google.com * modification, are permitted provided that the following conditions are met: 914184Sgabeblack@google.com * 1014184Sgabeblack@google.com * 1. Redistributions of source code must retain the above copyright notice, 1114184Sgabeblack@google.com * this list of conditions and the following disclaimer. 1214184Sgabeblack@google.com * 1314184Sgabeblack@google.com * 2. Redistributions in binary form must reproduce the above copyright notice, 1414184Sgabeblack@google.com * this list of conditions and the following disclaimer in the documentation 1514184Sgabeblack@google.com * and/or other materials provided with the distribution. 1614184Sgabeblack@google.com * 1714184Sgabeblack@google.com * 3. Neither the name of the copyright holder nor the names of its 1814184Sgabeblack@google.com * contributors may be used to endorse or promote products derived from this 1914184Sgabeblack@google.com * software without specific prior written permission. 2014184Sgabeblack@google.com * 2114184Sgabeblack@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 2214184Sgabeblack@google.com * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2314184Sgabeblack@google.com * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2414184Sgabeblack@google.com * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 2514184Sgabeblack@google.com * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 2614184Sgabeblack@google.com * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 2714184Sgabeblack@google.com * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 2814184Sgabeblack@google.com * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 2914184Sgabeblack@google.com * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 3014184Sgabeblack@google.com * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 3114184Sgabeblack@google.com * POSSIBILITY OF SUCH DAMAGE. 3214184Sgabeblack@google.com * 3314184Sgabeblack@google.com * Author: Blake Hechtman 3414184Sgabeblack@google.com */ 3514184Sgabeblack@google.com 3614184Sgabeblack@google.commachine(MachineType:TCC, "TCC Cache") 3714184Sgabeblack@google.com : CacheMemory * L2cache; 3814184Sgabeblack@google.com bool WB; /*is this cache Writeback?*/ 3914184Sgabeblack@google.com Cycles l2_request_latency := 50; 4014184Sgabeblack@google.com Cycles l2_response_latency := 20; 4114184Sgabeblack@google.com 4214184Sgabeblack@google.com // From the TCPs or SQCs 4314184Sgabeblack@google.com MessageBuffer * requestFromTCP, network="From", virtual_network="1", vnet_type="request"; 4414184Sgabeblack@google.com // To the Cores. TCC deals only with TCPs/SQCs. 4514184Sgabeblack@google.com MessageBuffer * responseToCore, network="To", virtual_network="3", vnet_type="response"; 4614184Sgabeblack@google.com // From the NB 4714184Sgabeblack@google.com MessageBuffer * probeFromNB, network="From", virtual_network="0", vnet_type="request"; 4814184Sgabeblack@google.com MessageBuffer * responseFromNB, network="From", virtual_network="2", vnet_type="response"; 4914184Sgabeblack@google.com // To the NB 5014184Sgabeblack@google.com MessageBuffer * requestToNB, network="To", virtual_network="0", vnet_type="request"; 5114184Sgabeblack@google.com MessageBuffer * responseToNB, network="To", virtual_network="2", vnet_type="response"; 5214184Sgabeblack@google.com MessageBuffer * unblockToNB, network="To", virtual_network="4", vnet_type="unblock"; 5314184Sgabeblack@google.com 5414184Sgabeblack@google.com MessageBuffer * triggerQueue; 5514184Sgabeblack@google.com 5614184Sgabeblack@google.com{ 5714184Sgabeblack@google.com // EVENTS 5814184Sgabeblack@google.com enumeration(Event, desc="TCC Events") { 5914184Sgabeblack@google.com // Requests coming from the Cores 6014184Sgabeblack@google.com RdBlk, desc="RdBlk event"; 6114184Sgabeblack@google.com WrVicBlk, desc="L1 Write Through"; 6214184Sgabeblack@google.com WrVicBlkBack, desc="L1 Write Through(dirty cache)"; 6314184Sgabeblack@google.com Atomic, desc="Atomic Op"; 6414184Sgabeblack@google.com AtomicDone, desc="AtomicOps Complete"; 6514184Sgabeblack@google.com AtomicNotDone, desc="AtomicOps not Complete"; 6614184Sgabeblack@google.com Data, desc="data messgae"; 6714184Sgabeblack@google.com // Coming from this TCC 6814184Sgabeblack@google.com L2_Repl, desc="L2 Replacement"; 6914184Sgabeblack@google.com // Probes 7014184Sgabeblack@google.com PrbInv, desc="Invalidating probe"; 7114184Sgabeblack@google.com // Coming from Memory Controller 7214184Sgabeblack@google.com WBAck, desc="writethrough ack from memory"; 7314184Sgabeblack@google.com } 7414184Sgabeblack@google.com 7514184Sgabeblack@google.com // STATES 7614184Sgabeblack@google.com state_declaration(State, desc="TCC State", default="TCC_State_I") { 7714184Sgabeblack@google.com M, AccessPermission:Read_Write, desc="Modified(dirty cache only)"; 7814184Sgabeblack@google.com W, AccessPermission:Read_Write, desc="Written(dirty cache only)"; 7914184Sgabeblack@google.com V, AccessPermission:Read_Only, desc="Valid"; 8014184Sgabeblack@google.com I, AccessPermission:Invalid, desc="Invalid"; 8114184Sgabeblack@google.com IV, AccessPermission:Busy, desc="Waiting for Data"; 8214184Sgabeblack@google.com WI, AccessPermission:Busy, desc="Waiting on Writethrough Ack"; 8314184Sgabeblack@google.com A, AccessPermission:Busy, desc="Invalid waiting on atomici Data"; 8414184Sgabeblack@google.com } 8514184Sgabeblack@google.com 8614184Sgabeblack@google.com enumeration(RequestType, desc="To communicate stats from transitions to recordStats") { 8714184Sgabeblack@google.com DataArrayRead, desc="Read the data array"; 8814184Sgabeblack@google.com DataArrayWrite, desc="Write the data array"; 8914184Sgabeblack@google.com TagArrayRead, desc="Read the data array"; 9014184Sgabeblack@google.com TagArrayWrite, desc="Write the data array"; 9114184Sgabeblack@google.com } 9214184Sgabeblack@google.com 9314184Sgabeblack@google.com 9414184Sgabeblack@google.com // STRUCTURES 9514184Sgabeblack@google.com 9614184Sgabeblack@google.com structure(Entry, desc="...", interface="AbstractCacheEntry") { 9714184Sgabeblack@google.com State CacheState, desc="cache state"; 9814184Sgabeblack@google.com bool Dirty, desc="Is the data dirty (diff from memory?)"; 9914184Sgabeblack@google.com DataBlock DataBlk, desc="Data for the block"; 10014184Sgabeblack@google.com WriteMask writeMask, desc="Dirty byte mask"; 10114184Sgabeblack@google.com } 10214184Sgabeblack@google.com 10314184Sgabeblack@google.com structure(TBE, desc="...") { 10414184Sgabeblack@google.com State TBEState, desc="Transient state"; 10514184Sgabeblack@google.com DataBlock DataBlk, desc="data for the block"; 10614184Sgabeblack@google.com bool Dirty, desc="Is the data dirty?"; 10714184Sgabeblack@google.com bool Shared, desc="Victim hit by shared probe"; 10814184Sgabeblack@google.com MachineID From, desc="Waiting for writeback from..."; 10914184Sgabeblack@google.com NetDest Destination, desc="Data destination"; 11014184Sgabeblack@google.com int numAtomics, desc="number remaining atomics"; 11114184Sgabeblack@google.com } 11214184Sgabeblack@google.com 11314184Sgabeblack@google.com structure(TBETable, external="yes") { 11414184Sgabeblack@google.com TBE lookup(Addr); 11514184Sgabeblack@google.com void allocate(Addr); 11614184Sgabeblack@google.com void deallocate(Addr); 11714184Sgabeblack@google.com bool isPresent(Addr); 11814184Sgabeblack@google.com } 11914184Sgabeblack@google.com 12014184Sgabeblack@google.com TBETable TBEs, template="<TCC_TBE>", constructor="m_number_of_TBEs"; 12114184Sgabeblack@google.com 12214184Sgabeblack@google.com void set_cache_entry(AbstractCacheEntry b); 12314184Sgabeblack@google.com void unset_cache_entry(); 12414184Sgabeblack@google.com void set_tbe(TBE b); 12514184Sgabeblack@google.com void unset_tbe(); 12614184Sgabeblack@google.com void wakeUpAllBuffers(); 12714184Sgabeblack@google.com void wakeUpBuffers(Addr a); 12814184Sgabeblack@google.com 12914184Sgabeblack@google.com MachineID mapAddressToMachine(Addr addr, MachineType mtype); 13014184Sgabeblack@google.com 13114184Sgabeblack@google.com // FUNCTION DEFINITIONS 13214184Sgabeblack@google.com Tick clockEdge(); 13314184Sgabeblack@google.com 13414184Sgabeblack@google.com Entry getCacheEntry(Addr addr), return_by_pointer="yes" { 13514184Sgabeblack@google.com return static_cast(Entry, "pointer", L2cache.lookup(addr)); 13614184Sgabeblack@google.com } 13714184Sgabeblack@google.com 13814184Sgabeblack@google.com DataBlock getDataBlock(Addr addr), return_by_ref="yes" { 13914184Sgabeblack@google.com return getCacheEntry(addr).DataBlk; 14014184Sgabeblack@google.com } 14114184Sgabeblack@google.com 14214184Sgabeblack@google.com bool presentOrAvail(Addr addr) { 14314184Sgabeblack@google.com return L2cache.isTagPresent(addr) || L2cache.cacheAvail(addr); 14414184Sgabeblack@google.com } 14514184Sgabeblack@google.com 14614184Sgabeblack@google.com State getState(TBE tbe, Entry cache_entry, Addr addr) { 14714184Sgabeblack@google.com if (is_valid(tbe)) { 14814184Sgabeblack@google.com return tbe.TBEState; 14914184Sgabeblack@google.com } else if (is_valid(cache_entry)) { 15014184Sgabeblack@google.com return cache_entry.CacheState; 15114184Sgabeblack@google.com } 15214184Sgabeblack@google.com return State:I; 15314184Sgabeblack@google.com } 15414184Sgabeblack@google.com 15514184Sgabeblack@google.com void setState(TBE tbe, Entry cache_entry, Addr addr, State state) { 15614184Sgabeblack@google.com if (is_valid(tbe)) { 15714184Sgabeblack@google.com tbe.TBEState := state; 15814184Sgabeblack@google.com } 15914184Sgabeblack@google.com 16014184Sgabeblack@google.com if (is_valid(cache_entry)) { 16114184Sgabeblack@google.com cache_entry.CacheState := state; 16214184Sgabeblack@google.com } 16314184Sgabeblack@google.com } 16414184Sgabeblack@google.com 16514184Sgabeblack@google.com void functionalRead(Addr addr, Packet *pkt) { 16614184Sgabeblack@google.com TBE tbe := TBEs.lookup(addr); 16714184Sgabeblack@google.com if(is_valid(tbe)) { 16814184Sgabeblack@google.com testAndRead(addr, tbe.DataBlk, pkt); 16914184Sgabeblack@google.com } else { 17014184Sgabeblack@google.com functionalMemoryRead(pkt); 17114184Sgabeblack@google.com } 17214184Sgabeblack@google.com } 17314184Sgabeblack@google.com 17414184Sgabeblack@google.com int functionalWrite(Addr addr, Packet *pkt) { 17514184Sgabeblack@google.com int num_functional_writes := 0; 17614184Sgabeblack@google.com 17714184Sgabeblack@google.com TBE tbe := TBEs.lookup(addr); 17814184Sgabeblack@google.com if(is_valid(tbe)) { 17914184Sgabeblack@google.com num_functional_writes := num_functional_writes + 18014184Sgabeblack@google.com testAndWrite(addr, tbe.DataBlk, pkt); 18114184Sgabeblack@google.com } 18214184Sgabeblack@google.com 18314184Sgabeblack@google.com num_functional_writes := num_functional_writes + 18414184Sgabeblack@google.com functionalMemoryWrite(pkt); 18514184Sgabeblack@google.com return num_functional_writes; 18614184Sgabeblack@google.com } 18714184Sgabeblack@google.com 18814184Sgabeblack@google.com AccessPermission getAccessPermission(Addr addr) { 18914184Sgabeblack@google.com TBE tbe := TBEs.lookup(addr); 19014184Sgabeblack@google.com if(is_valid(tbe)) { 19114184Sgabeblack@google.com return TCC_State_to_permission(tbe.TBEState); 19214184Sgabeblack@google.com } 19314184Sgabeblack@google.com 19414184Sgabeblack@google.com Entry cache_entry := getCacheEntry(addr); 19514184Sgabeblack@google.com if(is_valid(cache_entry)) { 19614184Sgabeblack@google.com return TCC_State_to_permission(cache_entry.CacheState); 19714184Sgabeblack@google.com } 19814184Sgabeblack@google.com 19914184Sgabeblack@google.com return AccessPermission:NotPresent; 20014184Sgabeblack@google.com } 20114184Sgabeblack@google.com 20214184Sgabeblack@google.com void setAccessPermission(Entry cache_entry, Addr addr, State state) { 20314184Sgabeblack@google.com if (is_valid(cache_entry)) { 20414184Sgabeblack@google.com cache_entry.changePermission(TCC_State_to_permission(state)); 20514184Sgabeblack@google.com } 20614184Sgabeblack@google.com } 20714184Sgabeblack@google.com 20814184Sgabeblack@google.com void recordRequestType(RequestType request_type, Addr addr) { 20914184Sgabeblack@google.com if (request_type == RequestType:DataArrayRead) { 21014184Sgabeblack@google.com L2cache.recordRequestType(CacheRequestType:DataArrayRead, addr); 21114184Sgabeblack@google.com } else if (request_type == RequestType:DataArrayWrite) { 21214184Sgabeblack@google.com L2cache.recordRequestType(CacheRequestType:DataArrayWrite, addr); 21314184Sgabeblack@google.com } else if (request_type == RequestType:TagArrayRead) { 21414184Sgabeblack@google.com L2cache.recordRequestType(CacheRequestType:TagArrayRead, addr); 21514184Sgabeblack@google.com } else if (request_type == RequestType:TagArrayWrite) { 21614184Sgabeblack@google.com L2cache.recordRequestType(CacheRequestType:TagArrayWrite, addr); 21714184Sgabeblack@google.com } 21814184Sgabeblack@google.com } 21914184Sgabeblack@google.com 22014184Sgabeblack@google.com bool checkResourceAvailable(RequestType request_type, Addr addr) { 22114184Sgabeblack@google.com if (request_type == RequestType:DataArrayRead) { 22214184Sgabeblack@google.com return L2cache.checkResourceAvailable(CacheResourceType:DataArray, addr); 22314184Sgabeblack@google.com } else if (request_type == RequestType:DataArrayWrite) { 22414184Sgabeblack@google.com return L2cache.checkResourceAvailable(CacheResourceType:DataArray, addr); 22514184Sgabeblack@google.com } else if (request_type == RequestType:TagArrayRead) { 22614184Sgabeblack@google.com return L2cache.checkResourceAvailable(CacheResourceType:TagArray, addr); 22714184Sgabeblack@google.com } else if (request_type == RequestType:TagArrayWrite) { 22814184Sgabeblack@google.com return L2cache.checkResourceAvailable(CacheResourceType:TagArray, addr); 22914184Sgabeblack@google.com } else { 23014184Sgabeblack@google.com error("Invalid RequestType type in checkResourceAvailable"); 23114184Sgabeblack@google.com return true; 23214184Sgabeblack@google.com } 23314184Sgabeblack@google.com } 23414184Sgabeblack@google.com 23514184Sgabeblack@google.com 23614184Sgabeblack@google.com // ** OUT_PORTS ** 23714184Sgabeblack@google.com 23814184Sgabeblack@google.com // Three classes of ports 23914184Sgabeblack@google.com // Class 1: downward facing network links to NB 24014184Sgabeblack@google.com out_port(requestToNB_out, CPURequestMsg, requestToNB); 24114184Sgabeblack@google.com out_port(responseToNB_out, ResponseMsg, responseToNB); 24214184Sgabeblack@google.com out_port(unblockToNB_out, UnblockMsg, unblockToNB); 24314184Sgabeblack@google.com 24414184Sgabeblack@google.com // Class 2: upward facing ports to GPU cores 24514184Sgabeblack@google.com out_port(responseToCore_out, ResponseMsg, responseToCore); 24614184Sgabeblack@google.com 24714184Sgabeblack@google.com out_port(triggerQueue_out, TriggerMsg, triggerQueue); 24814184Sgabeblack@google.com // 24914184Sgabeblack@google.com // request queue going to NB 25014184Sgabeblack@google.com // 25114184Sgabeblack@google.com 25214184Sgabeblack@google.com 25314184Sgabeblack@google.com// ** IN_PORTS ** 25414184Sgabeblack@google.com in_port(triggerQueue_in, TiggerMsg, triggerQueue) { 25514184Sgabeblack@google.com if (triggerQueue_in.isReady(clockEdge())) { 25614184Sgabeblack@google.com peek(triggerQueue_in, TriggerMsg) { 25714184Sgabeblack@google.com TBE tbe := TBEs.lookup(in_msg.addr); 25814184Sgabeblack@google.com Entry cache_entry := getCacheEntry(in_msg.addr); 25914184Sgabeblack@google.com if (tbe.numAtomics == 0) { 26014184Sgabeblack@google.com trigger(Event:AtomicDone, in_msg.addr, cache_entry, tbe); 26114184Sgabeblack@google.com } else { 26214184Sgabeblack@google.com trigger(Event:AtomicNotDone, in_msg.addr, cache_entry, tbe); 26314184Sgabeblack@google.com } 26414184Sgabeblack@google.com } 26514184Sgabeblack@google.com } 26614184Sgabeblack@google.com } 26714184Sgabeblack@google.com 26814184Sgabeblack@google.com 26914184Sgabeblack@google.com 27014184Sgabeblack@google.com in_port(responseFromNB_in, ResponseMsg, responseFromNB) { 27114184Sgabeblack@google.com if (responseFromNB_in.isReady(clockEdge())) { 27214184Sgabeblack@google.com peek(responseFromNB_in, ResponseMsg, block_on="addr") { 27314184Sgabeblack@google.com TBE tbe := TBEs.lookup(in_msg.addr); 27414184Sgabeblack@google.com Entry cache_entry := getCacheEntry(in_msg.addr); 27514184Sgabeblack@google.com if (in_msg.Type == CoherenceResponseType:NBSysResp) { 27614184Sgabeblack@google.com if(presentOrAvail(in_msg.addr)) { 27714184Sgabeblack@google.com trigger(Event:Data, in_msg.addr, cache_entry, tbe); 27814184Sgabeblack@google.com } else { 27914184Sgabeblack@google.com Addr victim := L2cache.cacheProbe(in_msg.addr); 28014184Sgabeblack@google.com trigger(Event:L2_Repl, victim, getCacheEntry(victim), TBEs.lookup(victim)); 28114184Sgabeblack@google.com } 28214184Sgabeblack@google.com } else if (in_msg.Type == CoherenceResponseType:NBSysWBAck) { 28314184Sgabeblack@google.com trigger(Event:WBAck, in_msg.addr, cache_entry, tbe); 28414184Sgabeblack@google.com } else { 28514184Sgabeblack@google.com error("Unexpected Response Message to Core"); 28614184Sgabeblack@google.com } 28714184Sgabeblack@google.com } 28814184Sgabeblack@google.com } 28914184Sgabeblack@google.com } 29014184Sgabeblack@google.com 29114184Sgabeblack@google.com // Finally handling incoming requests (from TCP) and probes (from NB). 29214184Sgabeblack@google.com in_port(probeNetwork_in, NBProbeRequestMsg, probeFromNB) { 29314184Sgabeblack@google.com if (probeNetwork_in.isReady(clockEdge())) { 29414184Sgabeblack@google.com peek(probeNetwork_in, NBProbeRequestMsg) { 29514184Sgabeblack@google.com DPRINTF(RubySlicc, "%s\n", in_msg); 29614184Sgabeblack@google.com Entry cache_entry := getCacheEntry(in_msg.addr); 29714184Sgabeblack@google.com TBE tbe := TBEs.lookup(in_msg.addr); 29814184Sgabeblack@google.com trigger(Event:PrbInv, in_msg.addr, cache_entry, tbe); 29914184Sgabeblack@google.com } 30014184Sgabeblack@google.com } 30114184Sgabeblack@google.com } 30214184Sgabeblack@google.com 30314184Sgabeblack@google.com in_port(coreRequestNetwork_in, CPURequestMsg, requestFromTCP, rank=0) { 30414184Sgabeblack@google.com if (coreRequestNetwork_in.isReady(clockEdge())) { 30514184Sgabeblack@google.com peek(coreRequestNetwork_in, CPURequestMsg) { 30614184Sgabeblack@google.com TBE tbe := TBEs.lookup(in_msg.addr); 30714184Sgabeblack@google.com Entry cache_entry := getCacheEntry(in_msg.addr); 30814184Sgabeblack@google.com if (in_msg.Type == CoherenceRequestType:WriteThrough) { 30914184Sgabeblack@google.com if(WB) { 31014184Sgabeblack@google.com if(presentOrAvail(in_msg.addr)) { 31114184Sgabeblack@google.com trigger(Event:WrVicBlkBack, in_msg.addr, cache_entry, tbe); 31214184Sgabeblack@google.com } else { 31314184Sgabeblack@google.com Addr victim := L2cache.cacheProbe(in_msg.addr); 31414184Sgabeblack@google.com trigger(Event:L2_Repl, victim, getCacheEntry(victim), TBEs.lookup(victim)); 31514184Sgabeblack@google.com } 31614184Sgabeblack@google.com } else { 31714184Sgabeblack@google.com trigger(Event:WrVicBlk, in_msg.addr, cache_entry, tbe); 31814184Sgabeblack@google.com } 31914184Sgabeblack@google.com } else if (in_msg.Type == CoherenceRequestType:Atomic) { 32014184Sgabeblack@google.com trigger(Event:Atomic, in_msg.addr, cache_entry, tbe); 32114184Sgabeblack@google.com } else if (in_msg.Type == CoherenceRequestType:RdBlk) { 32214184Sgabeblack@google.com trigger(Event:RdBlk, in_msg.addr, cache_entry, tbe); 32314184Sgabeblack@google.com } else { 32414184Sgabeblack@google.com DPRINTF(RubySlicc, "%s\n", in_msg); 32514184Sgabeblack@google.com error("Unexpected Response Message to Core"); 32614184Sgabeblack@google.com } 32714184Sgabeblack@google.com } 32814184Sgabeblack@google.com } 32914184Sgabeblack@google.com } 33014184Sgabeblack@google.com // BEGIN ACTIONS 33114184Sgabeblack@google.com 33214184Sgabeblack@google.com action(i_invL2, "i", desc="invalidate TCC cache block") { 33314184Sgabeblack@google.com if (is_valid(cache_entry)) { 33414184Sgabeblack@google.com L2cache.deallocate(address); 33514184Sgabeblack@google.com } 33614184Sgabeblack@google.com unset_cache_entry(); 33714184Sgabeblack@google.com } 33814184Sgabeblack@google.com 33914184Sgabeblack@google.com action(sd_sendData, "sd", desc="send Shared response") { 34014184Sgabeblack@google.com peek(coreRequestNetwork_in, CPURequestMsg) { 34114184Sgabeblack@google.com enqueue(responseToCore_out, ResponseMsg, l2_response_latency) { 34214184Sgabeblack@google.com out_msg.addr := address; 34314184Sgabeblack@google.com out_msg.Type := CoherenceResponseType:TDSysResp; 34414184Sgabeblack@google.com out_msg.Sender := machineID; 34514184Sgabeblack@google.com out_msg.Destination.add(in_msg.Requestor); 34614184Sgabeblack@google.com out_msg.DataBlk := cache_entry.DataBlk; 34714184Sgabeblack@google.com out_msg.MessageSize := MessageSizeType:Response_Data; 34814184Sgabeblack@google.com out_msg.Dirty := false; 34914184Sgabeblack@google.com out_msg.State := CoherenceState:Shared; 35014184Sgabeblack@google.com DPRINTF(RubySlicc, "%s\n", out_msg); 35114184Sgabeblack@google.com } 35214184Sgabeblack@google.com } 35314184Sgabeblack@google.com } 35414184Sgabeblack@google.com 35514184Sgabeblack@google.com 35614184Sgabeblack@google.com action(sdr_sendDataResponse, "sdr", desc="send Shared response") { 35714184Sgabeblack@google.com enqueue(responseToCore_out, ResponseMsg, l2_response_latency) { 35814184Sgabeblack@google.com out_msg.addr := address; 35914184Sgabeblack@google.com out_msg.Type := CoherenceResponseType:TDSysResp; 36014184Sgabeblack@google.com out_msg.Sender := machineID; 36114184Sgabeblack@google.com out_msg.Destination := tbe.Destination; 36214184Sgabeblack@google.com out_msg.DataBlk := cache_entry.DataBlk; 36314184Sgabeblack@google.com out_msg.MessageSize := MessageSizeType:Response_Data; 36414184Sgabeblack@google.com out_msg.Dirty := false; 36514184Sgabeblack@google.com out_msg.State := CoherenceState:Shared; 36614184Sgabeblack@google.com DPRINTF(RubySlicc, "%s\n", out_msg); 36714184Sgabeblack@google.com } 36814184Sgabeblack@google.com enqueue(unblockToNB_out, UnblockMsg, 1) { 36914184Sgabeblack@google.com out_msg.addr := address; 37014184Sgabeblack@google.com out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory)); 37114184Sgabeblack@google.com out_msg.MessageSize := MessageSizeType:Unblock_Control; 37214184Sgabeblack@google.com DPRINTF(RubySlicc, "%s\n", out_msg); 37314184Sgabeblack@google.com } 37414184Sgabeblack@google.com } 37514184Sgabeblack@google.com 37614184Sgabeblack@google.com 37714184Sgabeblack@google.com action(rd_requestData, "r", desc="Miss in L2, pass on") { 37814184Sgabeblack@google.com if(tbe.Destination.count()==1){ 37914184Sgabeblack@google.com peek(coreRequestNetwork_in, CPURequestMsg) { 38014184Sgabeblack@google.com enqueue(requestToNB_out, CPURequestMsg, l2_request_latency) { 38114184Sgabeblack@google.com out_msg.addr := address; 38214184Sgabeblack@google.com out_msg.Type := in_msg.Type; 38314184Sgabeblack@google.com out_msg.Requestor := machineID; 38414184Sgabeblack@google.com out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory)); 38514184Sgabeblack@google.com out_msg.Shared := false; // unneeded for this request 38614184Sgabeblack@google.com out_msg.MessageSize := in_msg.MessageSize; 38714184Sgabeblack@google.com DPRINTF(RubySlicc, "%s\n", out_msg); 38814184Sgabeblack@google.com } 38914184Sgabeblack@google.com } 39014184Sgabeblack@google.com } 39114184Sgabeblack@google.com } 39214184Sgabeblack@google.com 39314184Sgabeblack@google.com action(w_sendResponseWBAck, "w", desc="send WB Ack") { 39414184Sgabeblack@google.com peek(responseFromNB_in, ResponseMsg) { 39514184Sgabeblack@google.com enqueue(responseToCore_out, ResponseMsg, l2_response_latency) { 39614184Sgabeblack@google.com out_msg.addr := address; 39714184Sgabeblack@google.com out_msg.Type := CoherenceResponseType:TDSysWBAck; 39814184Sgabeblack@google.com out_msg.Destination.clear(); 39914184Sgabeblack@google.com out_msg.Destination.add(in_msg.WTRequestor); 40014184Sgabeblack@google.com out_msg.Sender := machineID; 40114184Sgabeblack@google.com out_msg.MessageSize := MessageSizeType:Writeback_Control; 40214184Sgabeblack@google.com } 40314184Sgabeblack@google.com } 40414184Sgabeblack@google.com } 40514184Sgabeblack@google.com 40614184Sgabeblack@google.com action(swb_sendWBAck, "swb", desc="send WB Ack") { 40714184Sgabeblack@google.com peek(coreRequestNetwork_in, CPURequestMsg) { 40814184Sgabeblack@google.com enqueue(responseToCore_out, ResponseMsg, l2_response_latency) { 40914184Sgabeblack@google.com out_msg.addr := address; 41014184Sgabeblack@google.com out_msg.Type := CoherenceResponseType:TDSysWBAck; 41114184Sgabeblack@google.com out_msg.Destination.clear(); 41214184Sgabeblack@google.com out_msg.Destination.add(in_msg.Requestor); 41314184Sgabeblack@google.com out_msg.Sender := machineID; 41414184Sgabeblack@google.com out_msg.MessageSize := MessageSizeType:Writeback_Control; 41514184Sgabeblack@google.com } 41614184Sgabeblack@google.com } 41714184Sgabeblack@google.com } 41814184Sgabeblack@google.com 41914184Sgabeblack@google.com action(ar_sendAtomicResponse, "ar", desc="send Atomic Ack") { 42014184Sgabeblack@google.com peek(responseFromNB_in, ResponseMsg) { 42114184Sgabeblack@google.com enqueue(responseToCore_out, ResponseMsg, l2_response_latency) { 42214184Sgabeblack@google.com out_msg.addr := address; 42314184Sgabeblack@google.com out_msg.Type := CoherenceResponseType:TDSysResp; 42414184Sgabeblack@google.com out_msg.Destination.add(in_msg.WTRequestor); 42514184Sgabeblack@google.com out_msg.Sender := machineID; 42614184Sgabeblack@google.com out_msg.MessageSize := in_msg.MessageSize; 42714184Sgabeblack@google.com out_msg.DataBlk := in_msg.DataBlk; 42814184Sgabeblack@google.com } 42914184Sgabeblack@google.com } 43014184Sgabeblack@google.com } 43114184Sgabeblack@google.com 43214184Sgabeblack@google.com action(a_allocateBlock, "a", desc="allocate TCC block") { 43314184Sgabeblack@google.com if (is_invalid(cache_entry)) { 43414184Sgabeblack@google.com set_cache_entry(L2cache.allocate(address, new Entry)); 43514184Sgabeblack@google.com cache_entry.writeMask.clear(); 43614184Sgabeblack@google.com } 43714184Sgabeblack@google.com } 43814184Sgabeblack@google.com 43914184Sgabeblack@google.com action(t_allocateTBE, "t", desc="allocate TBE Entry") { 44014184Sgabeblack@google.com if (is_invalid(tbe)) { 44114184Sgabeblack@google.com check_allocate(TBEs); 44214184Sgabeblack@google.com TBEs.allocate(address); 44314184Sgabeblack@google.com set_tbe(TBEs.lookup(address)); 44414184Sgabeblack@google.com tbe.Destination.clear(); 44514184Sgabeblack@google.com tbe.numAtomics := 0; 44614184Sgabeblack@google.com } 44714184Sgabeblack@google.com if (coreRequestNetwork_in.isReady(clockEdge())) { 44814184Sgabeblack@google.com peek(coreRequestNetwork_in, CPURequestMsg) { 44914184Sgabeblack@google.com if(in_msg.Type == CoherenceRequestType:RdBlk || in_msg.Type == CoherenceRequestType:Atomic){ 45014184Sgabeblack@google.com tbe.Destination.add(in_msg.Requestor); 45114184Sgabeblack@google.com } 45214184Sgabeblack@google.com } 45314184Sgabeblack@google.com } 45414184Sgabeblack@google.com } 45514184Sgabeblack@google.com 45614184Sgabeblack@google.com action(dt_deallocateTBE, "dt", desc="Deallocate TBE entry") { 45714184Sgabeblack@google.com tbe.Destination.clear(); 45814184Sgabeblack@google.com TBEs.deallocate(address); 45914184Sgabeblack@google.com unset_tbe(); 46014184Sgabeblack@google.com } 46114184Sgabeblack@google.com 46214184Sgabeblack@google.com action(wcb_writeCacheBlock, "wcb", desc="write data to TCC") { 46314184Sgabeblack@google.com peek(responseFromNB_in, ResponseMsg) { 46414184Sgabeblack@google.com cache_entry.DataBlk := in_msg.DataBlk; 46514184Sgabeblack@google.com DPRINTF(RubySlicc, "Writing to TCC: %s\n", in_msg); 46614184Sgabeblack@google.com } 46714184Sgabeblack@google.com } 46814184Sgabeblack@google.com 46914184Sgabeblack@google.com action(wdb_writeDirtyBytes, "wdb", desc="write data to TCC") { 47014184Sgabeblack@google.com peek(coreRequestNetwork_in, CPURequestMsg) { 47114184Sgabeblack@google.com cache_entry.DataBlk.copyPartial(in_msg.DataBlk,in_msg.writeMask); 47214184Sgabeblack@google.com cache_entry.writeMask.orMask(in_msg.writeMask); 47314184Sgabeblack@google.com DPRINTF(RubySlicc, "Writing to TCC: %s\n", in_msg); 47414184Sgabeblack@google.com } 47514184Sgabeblack@google.com } 47614184Sgabeblack@google.com 47714184Sgabeblack@google.com action(wt_writeThrough, "wt", desc="write back data") { 47814184Sgabeblack@google.com peek(coreRequestNetwork_in, CPURequestMsg) { 47914184Sgabeblack@google.com enqueue(requestToNB_out, CPURequestMsg, l2_request_latency) { 48014184Sgabeblack@google.com out_msg.addr := address; 48114184Sgabeblack@google.com out_msg.Requestor := machineID; 48214184Sgabeblack@google.com out_msg.WTRequestor := in_msg.Requestor; 48314184Sgabeblack@google.com out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory)); 48414184Sgabeblack@google.com out_msg.MessageSize := MessageSizeType:Data; 48514184Sgabeblack@google.com out_msg.Type := CoherenceRequestType:WriteThrough; 48614184Sgabeblack@google.com out_msg.Dirty := true; 48714184Sgabeblack@google.com out_msg.DataBlk := in_msg.DataBlk; 48814184Sgabeblack@google.com out_msg.writeMask.orMask(in_msg.writeMask); 48914184Sgabeblack@google.com } 49014184Sgabeblack@google.com } 49114184Sgabeblack@google.com } 49214184Sgabeblack@google.com 49314184Sgabeblack@google.com action(wb_writeBack, "wb", desc="write back data") { 49414184Sgabeblack@google.com enqueue(requestToNB_out, CPURequestMsg, l2_request_latency) { 49514184Sgabeblack@google.com out_msg.addr := address; 49614184Sgabeblack@google.com out_msg.Requestor := machineID; 49714184Sgabeblack@google.com out_msg.WTRequestor := machineID; 49814184Sgabeblack@google.com out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory)); 49914184Sgabeblack@google.com out_msg.MessageSize := MessageSizeType:Data; 50014184Sgabeblack@google.com out_msg.Type := CoherenceRequestType:WriteThrough; 50114184Sgabeblack@google.com out_msg.Dirty := true; 50214184Sgabeblack@google.com out_msg.DataBlk := cache_entry.DataBlk; 50314184Sgabeblack@google.com out_msg.writeMask.orMask(cache_entry.writeMask); 50414184Sgabeblack@google.com } 50514184Sgabeblack@google.com } 50614184Sgabeblack@google.com 50714184Sgabeblack@google.com action(at_atomicThrough, "at", desc="write back data") { 50814184Sgabeblack@google.com peek(coreRequestNetwork_in, CPURequestMsg) { 50914184Sgabeblack@google.com enqueue(requestToNB_out, CPURequestMsg, l2_request_latency) { 51014184Sgabeblack@google.com out_msg.addr := address; 51114184Sgabeblack@google.com out_msg.Requestor := machineID; 51214184Sgabeblack@google.com out_msg.WTRequestor := in_msg.Requestor; 51314184Sgabeblack@google.com out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory)); 51414184Sgabeblack@google.com out_msg.MessageSize := MessageSizeType:Data; 51514184Sgabeblack@google.com out_msg.Type := CoherenceRequestType:Atomic; 51614184Sgabeblack@google.com out_msg.Dirty := true; 51714184Sgabeblack@google.com out_msg.writeMask.orMask(in_msg.writeMask); 51814184Sgabeblack@google.com } 51914184Sgabeblack@google.com } 52014184Sgabeblack@google.com } 52114184Sgabeblack@google.com 52214184Sgabeblack@google.com action(pi_sendProbeResponseInv, "pi", desc="send probe ack inv, no data") { 52314184Sgabeblack@google.com enqueue(responseToNB_out, ResponseMsg, 1) { 52414184Sgabeblack@google.com out_msg.addr := address; 52514184Sgabeblack@google.com out_msg.Type := CoherenceResponseType:CPUPrbResp; // TCC, L3 respond in same way to probes 52614184Sgabeblack@google.com out_msg.Sender := machineID; 52714184Sgabeblack@google.com out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory)); 52814184Sgabeblack@google.com out_msg.Dirty := false; 52914184Sgabeblack@google.com out_msg.Hit := false; 53014184Sgabeblack@google.com out_msg.Ntsl := true; 53114184Sgabeblack@google.com out_msg.State := CoherenceState:NA; 53214184Sgabeblack@google.com out_msg.MessageSize := MessageSizeType:Response_Control; 53314184Sgabeblack@google.com } 53414184Sgabeblack@google.com } 53514184Sgabeblack@google.com action(ut_updateTag, "ut", desc="update Tag (i.e. set MRU)") { 53614184Sgabeblack@google.com L2cache.setMRU(address); 53714184Sgabeblack@google.com } 53814184Sgabeblack@google.com 53914184Sgabeblack@google.com action(p_popRequestQueue, "p", desc="pop request queue") { 54014184Sgabeblack@google.com coreRequestNetwork_in.dequeue(clockEdge()); 54114184Sgabeblack@google.com } 54214184Sgabeblack@google.com 54314184Sgabeblack@google.com action(pr_popResponseQueue, "pr", desc="pop response queue") { 54414184Sgabeblack@google.com responseFromNB_in.dequeue(clockEdge()); 54514184Sgabeblack@google.com } 54614184Sgabeblack@google.com 54714184Sgabeblack@google.com action(pp_popProbeQueue, "pp", desc="pop probe queue") { 54814184Sgabeblack@google.com probeNetwork_in.dequeue(clockEdge()); 54914184Sgabeblack@google.com } 55014184Sgabeblack@google.com 55114184Sgabeblack@google.com action(z_stall, "z", desc="stall") { 55214184Sgabeblack@google.com // built-in 55314184Sgabeblack@google.com } 55414184Sgabeblack@google.com 55514184Sgabeblack@google.com 55614184Sgabeblack@google.com action(ina_incrementNumAtomics, "ina", desc="inc num atomics") { 55714184Sgabeblack@google.com tbe.numAtomics := tbe.numAtomics + 1; 55814184Sgabeblack@google.com } 55914184Sgabeblack@google.com 56014184Sgabeblack@google.com 56114184Sgabeblack@google.com action(dna_decrementNumAtomics, "dna", desc="inc num atomics") { 56214184Sgabeblack@google.com tbe.numAtomics := tbe.numAtomics - 1; 56314184Sgabeblack@google.com if (tbe.numAtomics==0) { 56414184Sgabeblack@google.com enqueue(triggerQueue_out, TriggerMsg, 1) { 56514184Sgabeblack@google.com out_msg.addr := address; 56614184Sgabeblack@google.com out_msg.Type := TriggerType:AtomicDone; 56714184Sgabeblack@google.com } 56814184Sgabeblack@google.com } 56914184Sgabeblack@google.com } 57014184Sgabeblack@google.com 57114184Sgabeblack@google.com action(ptr_popTriggerQueue, "ptr", desc="pop Trigger") { 57214184Sgabeblack@google.com triggerQueue_in.dequeue(clockEdge()); 57314184Sgabeblack@google.com } 57414184Sgabeblack@google.com 57514184Sgabeblack@google.com // END ACTIONS 57614184Sgabeblack@google.com 57714184Sgabeblack@google.com // BEGIN TRANSITIONS 57814184Sgabeblack@google.com // transitions from base 57914184Sgabeblack@google.com // Assumptions for ArrayRead/Write 58014184Sgabeblack@google.com // TBE checked before tags 58114184Sgabeblack@google.com // Data Read/Write requires Tag Read 58214184Sgabeblack@google.com 58314184Sgabeblack@google.com // Stalling transitions do NOT check the tag array...and if they do, 58414184Sgabeblack@google.com // they can cause a resource stall deadlock! 58514184Sgabeblack@google.com 58614184Sgabeblack@google.com transition(WI, {RdBlk, WrVicBlk, Atomic, WrVicBlkBack}) { //TagArrayRead} { 58714184Sgabeblack@google.com z_stall; 58814184Sgabeblack@google.com } 58914184Sgabeblack@google.com transition(A, {RdBlk, WrVicBlk, WrVicBlkBack}) { //TagArrayRead} { 59014184Sgabeblack@google.com z_stall; 59114184Sgabeblack@google.com } 59214184Sgabeblack@google.com transition(IV, {WrVicBlk, Atomic, WrVicBlkBack}) { //TagArrayRead} { 59314184Sgabeblack@google.com z_stall; 59414184Sgabeblack@google.com } 59514184Sgabeblack@google.com transition({M, V}, RdBlk) {TagArrayRead, DataArrayRead} { 59614184Sgabeblack@google.com sd_sendData; 59714184Sgabeblack@google.com ut_updateTag; 59814184Sgabeblack@google.com p_popRequestQueue; 59914184Sgabeblack@google.com } 60014184Sgabeblack@google.com transition(W, RdBlk, WI) {TagArrayRead, DataArrayRead} { 60114184Sgabeblack@google.com t_allocateTBE; 60214184Sgabeblack@google.com wb_writeBack; 60314184Sgabeblack@google.com } 60414184Sgabeblack@google.com 60514184Sgabeblack@google.com transition(I, RdBlk, IV) {TagArrayRead} { 60614184Sgabeblack@google.com t_allocateTBE; 60714184Sgabeblack@google.com rd_requestData; 60814184Sgabeblack@google.com p_popRequestQueue; 60914184Sgabeblack@google.com } 61014184Sgabeblack@google.com 61114184Sgabeblack@google.com transition(IV, RdBlk) { 61214184Sgabeblack@google.com t_allocateTBE; 61314184Sgabeblack@google.com rd_requestData; 61414184Sgabeblack@google.com p_popRequestQueue; 61514184Sgabeblack@google.com } 61614184Sgabeblack@google.com 61714184Sgabeblack@google.com transition({V, I},Atomic, A) {TagArrayRead} { 61814184Sgabeblack@google.com i_invL2; 61914184Sgabeblack@google.com t_allocateTBE; 62014184Sgabeblack@google.com at_atomicThrough; 62114184Sgabeblack@google.com ina_incrementNumAtomics; 62214184Sgabeblack@google.com p_popRequestQueue; 62314184Sgabeblack@google.com } 62414184Sgabeblack@google.com 62514184Sgabeblack@google.com transition(A, Atomic) { 62614184Sgabeblack@google.com at_atomicThrough; 62714184Sgabeblack@google.com ina_incrementNumAtomics; 62814184Sgabeblack@google.com p_popRequestQueue; 62914184Sgabeblack@google.com } 63014184Sgabeblack@google.com 63114184Sgabeblack@google.com transition({M, W}, Atomic, WI) {TagArrayRead} { 63214184Sgabeblack@google.com t_allocateTBE; 63314184Sgabeblack@google.com wb_writeBack; 63414184Sgabeblack@google.com } 63514184Sgabeblack@google.com 63614184Sgabeblack@google.com transition(I, WrVicBlk) {TagArrayRead} { 63714184Sgabeblack@google.com wt_writeThrough; 63814184Sgabeblack@google.com p_popRequestQueue; 63914184Sgabeblack@google.com } 64014184Sgabeblack@google.com 64114184Sgabeblack@google.com transition(V, WrVicBlk) {TagArrayRead, DataArrayWrite} { 64214184Sgabeblack@google.com ut_updateTag; 64314184Sgabeblack@google.com wdb_writeDirtyBytes; 64414184Sgabeblack@google.com wt_writeThrough; 64514184Sgabeblack@google.com p_popRequestQueue; 64614184Sgabeblack@google.com } 64714184Sgabeblack@google.com 64814184Sgabeblack@google.com transition({V, M}, WrVicBlkBack, M) {TagArrayRead, TagArrayWrite, DataArrayWrite} { 64914184Sgabeblack@google.com ut_updateTag; 65014184Sgabeblack@google.com swb_sendWBAck; 65114184Sgabeblack@google.com wdb_writeDirtyBytes; 65214184Sgabeblack@google.com p_popRequestQueue; 65314184Sgabeblack@google.com } 65414184Sgabeblack@google.com 65514184Sgabeblack@google.com transition(W, WrVicBlkBack) {TagArrayRead, TagArrayWrite, DataArrayWrite} { 65614184Sgabeblack@google.com ut_updateTag; 65714184Sgabeblack@google.com swb_sendWBAck; 65814184Sgabeblack@google.com wdb_writeDirtyBytes; 65914184Sgabeblack@google.com p_popRequestQueue; 66014184Sgabeblack@google.com } 66114184Sgabeblack@google.com 66214184Sgabeblack@google.com transition(I, WrVicBlkBack, W) {TagArrayRead, TagArrayWrite, DataArrayWrite} { 66314184Sgabeblack@google.com a_allocateBlock; 66414184Sgabeblack@google.com ut_updateTag; 66514184Sgabeblack@google.com swb_sendWBAck; 66614184Sgabeblack@google.com wdb_writeDirtyBytes; 66714184Sgabeblack@google.com p_popRequestQueue; 66814184Sgabeblack@google.com } 66914184Sgabeblack@google.com 67014184Sgabeblack@google.com transition({W, M}, L2_Repl, WI) {TagArrayRead, DataArrayRead} { 67114184Sgabeblack@google.com t_allocateTBE; 67214184Sgabeblack@google.com wb_writeBack; 67314184Sgabeblack@google.com i_invL2; 67414184Sgabeblack@google.com } 67514184Sgabeblack@google.com 67614184Sgabeblack@google.com transition({I, V}, L2_Repl, I) {TagArrayRead, TagArrayWrite} { 67714184Sgabeblack@google.com i_invL2; 67814184Sgabeblack@google.com } 67914184Sgabeblack@google.com 68014184Sgabeblack@google.com transition({A, IV, WI}, L2_Repl) { 68114184Sgabeblack@google.com i_invL2; 68214184Sgabeblack@google.com } 68314184Sgabeblack@google.com 68414184Sgabeblack@google.com transition({I, V}, PrbInv, I) {TagArrayRead, TagArrayWrite} { 68514184Sgabeblack@google.com pi_sendProbeResponseInv; 68614184Sgabeblack@google.com pp_popProbeQueue; 68714184Sgabeblack@google.com } 68814184Sgabeblack@google.com 68914184Sgabeblack@google.com transition(M, PrbInv, W) {TagArrayRead, TagArrayWrite} { 69014184Sgabeblack@google.com pi_sendProbeResponseInv; 69114184Sgabeblack@google.com pp_popProbeQueue; 69214184Sgabeblack@google.com } 69314184Sgabeblack@google.com 69414184Sgabeblack@google.com transition(W, PrbInv) {TagArrayRead} { 69514184Sgabeblack@google.com pi_sendProbeResponseInv; 69614184Sgabeblack@google.com pp_popProbeQueue; 69714184Sgabeblack@google.com } 69814184Sgabeblack@google.com 69914184Sgabeblack@google.com transition({A, IV, WI}, PrbInv) { 70014184Sgabeblack@google.com pi_sendProbeResponseInv; 70114184Sgabeblack@google.com pp_popProbeQueue; 70214184Sgabeblack@google.com } 70314184Sgabeblack@google.com 70414184Sgabeblack@google.com transition(IV, Data, V) {TagArrayRead, TagArrayWrite, DataArrayWrite} { 70514184Sgabeblack@google.com a_allocateBlock; 70614184Sgabeblack@google.com ut_updateTag; 70714184Sgabeblack@google.com wcb_writeCacheBlock; 70814184Sgabeblack@google.com sdr_sendDataResponse; 70914184Sgabeblack@google.com pr_popResponseQueue; 71014184Sgabeblack@google.com dt_deallocateTBE; 71114184Sgabeblack@google.com } 71214184Sgabeblack@google.com 71314184Sgabeblack@google.com transition(A, Data) {TagArrayRead, TagArrayWrite, DataArrayWrite} { 71414184Sgabeblack@google.com a_allocateBlock; 71514184Sgabeblack@google.com ar_sendAtomicResponse; 71614184Sgabeblack@google.com dna_decrementNumAtomics; 71714184Sgabeblack@google.com pr_popResponseQueue; 71814184Sgabeblack@google.com } 71914184Sgabeblack@google.com 72014184Sgabeblack@google.com transition(A, AtomicDone, I) {TagArrayRead, TagArrayWrite} { 72114184Sgabeblack@google.com dt_deallocateTBE; 72214184Sgabeblack@google.com ptr_popTriggerQueue; 72314184Sgabeblack@google.com } 72414184Sgabeblack@google.com 72514184Sgabeblack@google.com transition(A, AtomicNotDone) {TagArrayRead} { 72614184Sgabeblack@google.com ptr_popTriggerQueue; 72714184Sgabeblack@google.com } 72814184Sgabeblack@google.com 72914184Sgabeblack@google.com //M,W should not see WBAck as the cache is in WB mode 73014184Sgabeblack@google.com //WBAcks do not need to check tags 73114184Sgabeblack@google.com transition({I, V, IV, A}, WBAck) { 73214184Sgabeblack@google.com w_sendResponseWBAck; 73314184Sgabeblack@google.com pr_popResponseQueue; 73414184Sgabeblack@google.com } 73514184Sgabeblack@google.com 73614184Sgabeblack@google.com transition(WI, WBAck,I) { 73714184Sgabeblack@google.com dt_deallocateTBE; 73814184Sgabeblack@google.com pr_popResponseQueue; 73914184Sgabeblack@google.com } 74014184Sgabeblack@google.com} 741