diff options
Diffstat (limited to 'src/mem/protocol/MOESI_CMP_directory-L2cache.sm')
| -rw-r--r-- | src/mem/protocol/MOESI_CMP_directory-L2cache.sm | 171 |
1 files changed, 148 insertions, 23 deletions
diff --git a/src/mem/protocol/MOESI_CMP_directory-L2cache.sm b/src/mem/protocol/MOESI_CMP_directory-L2cache.sm index 059fcac71..297904c90 100644 --- a/src/mem/protocol/MOESI_CMP_directory-L2cache.sm +++ b/src/mem/protocol/MOESI_CMP_directory-L2cache.sm @@ -125,6 +125,13 @@ machine(L2Cache, "Token protocol") MII, AccessPermission:Busy, desc="Blocked, doing writeback, was M, got Fwd_GETX"; OLSI, AccessPermission:Busy, desc="Blocked, doing writeback, was OLS"; ILSI, AccessPermission:Busy, desc="Blocked, doing writeback, was OLS got Fwd_GETX"; + + // DMA blocking states + ILOSD, AccessPermission:Busy, desc="Blocked, waiting for DMA ack"; + ILOSXD, AccessPermission:Busy, desc="Blocked, waiting for DMA ack"; + ILOD, AccessPermission:Busy, desc="Blocked, waiting for DMA ack"; + ILXD, AccessPermission:Busy, desc="Blocked, waiting for DMA ack"; + ILOXD, AccessPermission:Busy, desc="Blocked, waiting for DMA ack"; } // EVENTS @@ -158,7 +165,7 @@ machine(L2Cache, "Token protocol") Unblock, desc="Local L1 is telling L2 dir to unblock"; Exclusive_Unblock, desc="Local L1 is telling L2 dir to unblock"; - + DmaAck, desc="DMA ack from local L1"; // events initiated by this L2 L2_Replacement, desc="L2 Replacement", format="!r"; @@ -636,6 +643,9 @@ machine(L2Cache, "Token protocol") trigger(Event:L1_WBCLEANDATA, in_msg.Address, cache_entry, TBEs[in_msg.Address]); } + } else if (in_msg.Type == CoherenceResponseType:DMA_ACK) { + trigger(Event:DmaAck, in_msg.Address, + getCacheEntry(in_msg.Address), TBEs[in_msg.Address]); } else { error("Unexpected message"); } @@ -769,6 +779,26 @@ machine(L2Cache, "Token protocol") } } + action(cd_sendDataFromTBEToFwdDma, "cd", desc="Send data from TBE to external GETX") { + assert(is_valid(tbe)); + peek(requestNetwork_in, RequestMsg) { + enqueue(responseNetwork_out, ResponseMsg, latency=response_latency) { + out_msg.Address := address; + out_msg.Type := CoherenceResponseType:DATA; + out_msg.Sender := machineID; + out_msg.Destination.add(in_msg.Requestor); + out_msg.DataBlk := tbe.DataBlk; + // out_msg.Dirty := tbe.Dirty; + // shared data should be clean + out_msg.Dirty := false; + out_msg.Acks := tbe.Fwd_GETX_ExtAcks; + out_msg.MessageSize := MessageSizeType:Response_Data; + } + } + DPRINTF(RubySlicc, "Address: %s, Data Block: %s\n", + address, tbe.DataBlk); + } + action(c_sendDataFromTBEToFwdGETS, "ccc", desc="Send data from TBE to external GETX") { assert(is_valid(tbe)); enqueue(responseNetwork_out, ResponseMsg, latency=response_latency) { @@ -1114,6 +1144,7 @@ machine(L2Cache, "Token protocol") assert(is_valid(tbe)); tbe.DataBlk := in_msg.DataBlk; tbe.Dirty := in_msg.Dirty; + APPEND_TRANSITION_COMMENT(in_msg.Sender); } } @@ -1148,6 +1179,21 @@ machine(L2Cache, "Token protocol") } } + action(jd_forwardDmaRequestToLocalOwner, "jd", desc="Forward dma request to local owner") { + peek(requestNetwork_in, RequestMsg) { + enqueue( localRequestNetwork_out, RequestMsg, latency=response_latency ) { + out_msg.Address := in_msg.Address; + out_msg.Type := in_msg.Type; + out_msg.Requestor := in_msg.Requestor; + out_msg.RequestorMachine := in_msg.RequestorMachine; + out_msg.Destination.add(getLocalOwner(cache_entry, in_msg.Address)); + out_msg.Type := in_msg.Type; + out_msg.MessageSize := MessageSizeType:Forwarded_Control; + out_msg.Acks := 0 - 1; + } + } + } + action(k_forwardLocalGETSToLocalSharer, "k", desc="Forward local request to local sharer/owner") { peek(L1requestNetwork_in, RequestMsg) { @@ -1436,33 +1482,48 @@ machine(L2Cache, "Token protocol") responseNetwork_in.recycle(); } + action(da_sendDmaAckUnblock, "da", desc="Send dma ack to global directory") { + enqueue(responseNetwork_out, ResponseMsg, latency=response_latency) { + out_msg.Address := address; + out_msg.Type := CoherenceResponseType:DMA_ACK; + out_msg.Destination.add(map_Address_to_Directory(address)); + out_msg.Sender := machineID; + out_msg.SenderMachine := MachineType:L2Cache; + out_msg.MessageSize := MessageSizeType:Unblock_Control; + } + } + //***************************************************** // TRANSITIONS //***************************************************** - transition({II, IFGX, IFGS, ISFGS, IFGXX, IFLXO, OFGX, ILOW, ILOXW, ILOSW, ILOSXW, SLSW, OLSW, ILSW, IW, OW, SW, OXW, OLSXW, ILXW, IFLS, IFLO, IFLOX, IFLOXX, IFLOSX, OLSXS, IGS, IGM, IGMLS, IGMO, IGMIO, OGMIO, IGMIOF, OGMIOF, MM, SS, OO, OI, MI, MII, OLSI, ILSI, SLSS, OLSS, OLSF, IGMIOFS}, {L1_PUTO, L1_PUTS, L1_PUTS_only, L1_PUTX}) { + transition({II, IFGX, IFGS, ISFGS, IFGXX, IFLXO, OFGX, ILOW, ILOXW, ILOSW, ILOSXW, SLSW, OLSW, ILSW, IW, OW, SW, OXW, OLSXW, ILXW, IFLS, IFLO, IFLOX, IFLOXX, IFLOSX, OLSXS, IGS, IGM, IGMLS, IGMO, IGMIO, OGMIO, IGMIOF, OGMIOF, MM, SS, OO, OI, MI, MII, OLSI, ILSI, SLSS, OLSS, OLSF, IGMIOFS, ILOSD, ILOSXD, ILOD, ILXD, ILOXD}, {L1_PUTO, L1_PUTS, L1_PUTS_only, L1_PUTX}) { zz_recycleL1RequestQueue; } - transition({II, IFGX, IFGS, ISFGS, IFGXX, IFLXO, OFGX, ILOW, ILOXW, ILOSW, ILOSXW, SLSW, OLSW, ILSW, IW, OW, SW, OXW, OLSXW, ILXW, IFLS, IFLO, IFLOX, IFLOXX, IFLOSX, OLSXS, IGS, IGM, IGMLS, IGMO, IGMIO, OGMIO, IGMIOF, OGMIOF, MM, SS, OO, OI, MI, MII, OLSI, ILSI, SLSS, OLSS, OLSF, IGMIOFS}, {L1_GETX, L1_GETS}) { + transition({II, IFGX, IFGS, ISFGS, IFGXX, IFLXO, OFGX, ILOW, ILOXW, ILOSW, ILOSXW, SLSW, OLSW, ILSW, IW, OW, SW, OXW, OLSXW, ILXW, IFLS, IFLO, IFLOX, IFLOXX, IFLOSX, OLSXS, IGS, IGM, IGMLS, IGMO, IGMIO, OGMIO, IGMIOF, OGMIOF, MM, SS, OO, OI, MI, MII, OLSI, ILSI, SLSS, OLSS, OLSF, IGMIOFS, ILOSD, ILOSXD, ILOD, ILXD, ILOXD}, {L1_GETX, L1_GETS}) { zz_recycleL1RequestQueue; } - transition({IFGX, IFGS, ISFGS, IFGXX, IFLXO, OFGX, ILOW, ILOXW, ILOSW, ILOSXW, SLSW, OLSW, ILSW, IW, ILXW, OW, SW, OXW, OLSXW, IFLS, IFLO, IFLOX, IFLOXX, IFLOSX,OLSXS, IGS, IGM, IGMLS, IGMO, MM, SS, OO, OI, MI, MII, OLSI, ILSI, SLSS, OLSS, OLSF, IGMIOFS}, L2_Replacement) { + transition({IFGX, IFGS, ISFGS, IFGXX, IFLXO, OFGX, ILOW, ILOXW, ILOSW, ILOSXW, SLSW, OLSW, ILSW, IW, ILXW, OW, SW, OXW, OLSXW, IFLS, IFLO, IFLOX, IFLOXX, IFLOSX,OLSXS, IGS, IGM, IGMLS, IGMO, MM, SS, OO, OI, MI, MII, OLSI, ILSI, SLSS, OLSS, OLSF, IGMIOFS, ILOSD, ILOSXD, ILOD, ILXD, ILOXD}, L2_Replacement) { zz_recycleResponseQueue; } - transition({IFGX, IFGS, ISFGS, IFGXX, IFLXO, OFGX, ILOW, ILOXW, ILOSW, ILOSXW, SLSW, OLSW, ILSW, IW, OW, SW, OXW, OLSXW, ILXW, IFLS, IFLO, IFLOX, IFLOXX, IFLOSX,OLSXS, IGS, IGM, MM, SS, OO, SLSS, OLSS, OLSF, IGMIOFS}, {Fwd_GETX, Fwd_GETS, Fwd_DMA}) { + transition({IFGX, IFGS, ISFGS, IFGXX, IFLXO, OFGX, ILOW, ILOXW, ILOSW, ILOSXW, SLSW, OLSW, ILSW, IW, OW, SW, OXW, OLSXW, ILXW, IFLS, IFLO, IFLOX, IFLOXX, IFLOSX,OLSXS, IGS, IGM, MM, SS, OO, SLSS, OLSS, OLSF, IGMIOFS, ILOSD, ILOSXD, ILOD, ILXD, ILOXD}, {Fwd_GETX, Fwd_GETS, Fwd_DMA}) { zz_recycleRequestQueue; } - transition({IFGX, IFGS, ISFGS, IFGXX, IFLXO, OFGX, ILOW, ILOXW, ILOSW, ILOSXW, SLSW, OLSW, ILSW, IW, OW, SW, OXW, OLSXW, ILXW, IFLS, IFLO, IFLOX, IFLOXX, IFLOSX,OLSXS, MM, SS, OO, SLSS, OLSS, OLSF, IGMIOFS}, {Inv}) { + transition({OGMIO, IGMIO, IGMO}, Fwd_DMA) { zz_recycleRequestQueue; } - transition({IGM, IGS}, {Own_GETX}) { + transition({IFGX, IFGS, ISFGS, IFGXX, IFLXO, OFGX, ILOW, ILOXW, ILOSW, ILOSXW, SLSW, OLSW, ILSW, IW, OW, SW, OXW, OLSXW, ILXW, IFLS, IFLO, IFLOX, IFLOXX, IFLOSX,OLSXS, MM, SS, OO, SLSS, OLSS, OLSF, IGMIOFS, ILOSD, ILOSXD, ILOD, ILXD, ILOXD}, {Inv}) { + zz_recycleRequestQueue; + } + + transition({IGM, IGS, ILOSD, ILOSXD, ILOD, ILXD, ILOXD}, {Own_GETX}) { zz_recycleRequestQueue; } @@ -1527,20 +1588,70 @@ machine(L2Cache, "Token protocol") m_popRequestQueue; } - transition({ILOS, ILOSX}, Fwd_DMA) { + transition(ILOS, Fwd_DMA, ILOSD) { + i_allocateTBE; + jd_forwardDmaRequestToLocalOwner; + m_popRequestQueue; + } + + transition(ILOSD, DmaAck, ILOS) { + s_deallocateTBE; + da_sendDmaAckUnblock; + n_popResponseQueue; + } + + transition(ILOSX, Fwd_DMA, ILOSXD) { i_allocateTBE; t_recordFwdSID; - j_forwardGlobalRequestToLocalOwner; + jd_forwardDmaRequestToLocalOwner; m_popRequestQueue; } - transition({ILO, ILX, ILOX}, Fwd_DMA) { + transition(ILOSXD, DmaAck, ILOSX) { + s_deallocateTBE; + da_sendDmaAckUnblock; + n_popResponseQueue; + } + + transition(ILO, Fwd_DMA, ILOD) { i_allocateTBE; t_recordFwdSID; - j_forwardGlobalRequestToLocalOwner; + jd_forwardDmaRequestToLocalOwner; m_popRequestQueue; } - + + transition(ILOD, DmaAck, ILO) { + s_deallocateTBE; + da_sendDmaAckUnblock; + n_popResponseQueue; + } + + transition(ILX, Fwd_DMA, ILXD) { + i_allocateTBE; + t_recordFwdSID; + jd_forwardDmaRequestToLocalOwner; + m_popRequestQueue; + } + + transition(ILXD, DmaAck, ILX) { + s_deallocateTBE; + da_sendDmaAckUnblock; + n_popResponseQueue; + } + + transition(ILOX, Fwd_DMA, ILOXD) { + i_allocateTBE; + t_recordFwdSID; + jd_forwardDmaRequestToLocalOwner; + m_popRequestQueue; + } + + transition(ILOXD, DmaAck, ILOX) { + s_deallocateTBE; + da_sendDmaAckUnblock; + n_popResponseQueue; + } + transition({ILOS, ILOSX, ILO, ILX, ILOX, ILXW}, Data) { i_copyDataToTBE; c_sendDataFromTBEToFwdGETS; @@ -1625,8 +1736,14 @@ machine(L2Cache, "Token protocol") m_popRequestQueue; } - transition({O, OLS}, {Fwd_GETS, Fwd_DMA}) { + transition({O, OLS}, Fwd_GETS) { + dd_sendDataToFwdGETS; + m_popRequestQueue; + } + + transition({O, OLS}, Fwd_DMA) { dd_sendDataToFwdGETS; + da_sendDmaAckUnblock; m_popRequestQueue; } @@ -1638,6 +1755,7 @@ machine(L2Cache, "Token protocol") transition(OLSX, Fwd_DMA) { dd_sendDataToFwdGETS; + da_sendDmaAckUnblock; m_popRequestQueue; } @@ -1662,6 +1780,7 @@ machine(L2Cache, "Token protocol") transition(M, Fwd_DMA) { dd_sendExclusiveDataToFwdGETS; + da_sendDmaAckUnblock; m_popRequestQueue; } @@ -1982,7 +2101,7 @@ machine(L2Cache, "Token protocol") o_popL1RequestQueue; } - transition(OGMIO, {Fwd_GETS, Fwd_DMA}) { + transition(OGMIO, Fwd_GETS) { t_recordFwdSID; c_sendDataFromTBEToFwdGETS; m_popRequestQueue; @@ -2017,12 +2136,6 @@ machine(L2Cache, "Token protocol") m_popRequestQueue; } - transition(IGMIO, Fwd_DMA) { - t_recordFwdSID; - j_forwardGlobalRequestToLocalOwner; - m_popRequestQueue; - } - transition(IGMIOFS, Data, IGMIO) { i_copyDataToTBE; c_sendDataFromTBEToFwdGETS; @@ -2202,7 +2315,7 @@ machine(L2Cache, "Token protocol") } - transition(IGMO, {Fwd_GETS, Fwd_DMA}) { + transition(IGMO, Fwd_GETS) { t_recordFwdSID; c_sendDataFromTBEToFwdGETS; m_popRequestQueue; @@ -2557,18 +2670,30 @@ machine(L2Cache, "Token protocol") n_popTriggerQueue; } - transition(OLSI, {Fwd_GETS, Fwd_DMA}) { + transition(OLSI, Fwd_GETS) { t_recordFwdSID; c_sendDataFromTBEToFwdGETS; m_popRequestQueue; } - transition({MI, OI}, {Fwd_GETS, Fwd_DMA}, OI) { + transition({MI, OI}, Fwd_GETS, OI) { t_recordFwdSID; c_sendDataFromTBEToFwdGETS; m_popRequestQueue; } + transition({MI, OI}, Fwd_DMA, OI) { + cd_sendDataFromTBEToFwdDma; + da_sendDmaAckUnblock; + m_popRequestQueue; + } + + transition(OLSI, Fwd_DMA) { + cd_sendDataFromTBEToFwdDma; + da_sendDmaAckUnblock; + m_popRequestQueue; + } + transition({MI, OI}, Fwd_GETX, MII) { t_recordFwdXID; c_sendDataFromTBEToFwdGETX; |