From 12db50c89584938839e035da47d206250cbfd7c2 Mon Sep 17 00:00:00 2001 From: Nikos Nikoleris Date: Mon, 13 Mar 2017 18:19:08 +0000 Subject: ruby: Add support for address ranges in the directory Previously the directory covered a flat address range that always started from address 0. This change adds a vector of address ranges with interleaving and hashing that each directory keeps track of and the necessary flexibility to support systems with non continuous memory ranges. Change-Id: I6ea1c629bdf4c5137b7d9c89dbaf6c826adfd977 Reviewed-by: Andreas Sandberg Reviewed-on: https://gem5-review.googlesource.com/2903 Reviewed-by: Bradford Beckmann Reviewed-by: Jason Lowe-Power Maintainer: Jason Lowe-Power --- src/mem/protocol/MOESI_hammer-cache.sm | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) (limited to 'src/mem/protocol/MOESI_hammer-cache.sm') diff --git a/src/mem/protocol/MOESI_hammer-cache.sm b/src/mem/protocol/MOESI_hammer-cache.sm index 9b2e4cab3..9cbd277d4 100644 --- a/src/mem/protocol/MOESI_hammer-cache.sm +++ b/src/mem/protocol/MOESI_hammer-cache.sm @@ -188,6 +188,7 @@ machine(MachineType:L1Cache, "AMD Hammer-like protocol") void wakeUpAllBuffers(); void wakeUpBuffers(Addr a); Cycles curCycle(); + MachineID mapAddressToMachine(Addr addr, MachineType mtype); Entry getCacheEntry(Addr address), return_by_pointer="yes" { Entry L2cache_entry := static_cast(Entry, "pointer", L2cache.lookup(address)); @@ -554,7 +555,7 @@ machine(MachineType:L1Cache, "AMD Hammer-like protocol") out_msg.addr := address; out_msg.Type := CoherenceRequestType:GETS; out_msg.Requestor := machineID; - out_msg.Destination.add(map_Address_to_Directory(address)); + out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory)); out_msg.MessageSize := MessageSizeType:Request_Control; out_msg.InitialRequestTime := curCycle(); @@ -569,7 +570,7 @@ machine(MachineType:L1Cache, "AMD Hammer-like protocol") out_msg.addr := address; out_msg.Type := CoherenceRequestType:GETX; out_msg.Requestor := machineID; - out_msg.Destination.add(map_Address_to_Directory(address)); + out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory)); out_msg.MessageSize := MessageSizeType:Request_Control; out_msg.InitialRequestTime := curCycle(); @@ -585,7 +586,7 @@ machine(MachineType:L1Cache, "AMD Hammer-like protocol") out_msg.addr := address; out_msg.Type := CoherenceRequestType:GETX; out_msg.Requestor := machineID; - out_msg.Destination.add(map_Address_to_Directory(address)); + out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory)); out_msg.MessageSize := MessageSizeType:Request_Control; out_msg.InitialRequestTime := curCycle(); } @@ -601,7 +602,7 @@ machine(MachineType:L1Cache, "AMD Hammer-like protocol") out_msg.addr := address; out_msg.Type := CoherenceRequestType:GETF; out_msg.Requestor := machineID; - out_msg.Destination.add(map_Address_to_Directory(address)); + out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory)); out_msg.MessageSize := MessageSizeType:Request_Control; out_msg.InitialRequestTime := curCycle(); @@ -661,7 +662,7 @@ machine(MachineType:L1Cache, "AMD Hammer-like protocol") out_msg.addr := address; out_msg.Type := CoherenceRequestType:PUT; out_msg.Requestor := machineID; - out_msg.Destination.add(map_Address_to_Directory(address)); + out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory)); out_msg.MessageSize := MessageSizeType:Writeback_Control; } } @@ -671,7 +672,7 @@ machine(MachineType:L1Cache, "AMD Hammer-like protocol") out_msg.addr := address; out_msg.Type := CoherenceRequestType:PUTF; out_msg.Requestor := machineID; - out_msg.Destination.add(map_Address_to_Directory(address)); + out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory)); out_msg.MessageSize := MessageSizeType:Writeback_Control; } } @@ -826,7 +827,7 @@ machine(MachineType:L1Cache, "AMD Hammer-like protocol") out_msg.addr := address; out_msg.Type := CoherenceResponseType:UNBLOCK; out_msg.Sender := machineID; - out_msg.Destination.add(map_Address_to_Directory(address)); + out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory)); out_msg.MessageSize := MessageSizeType:Unblock_Control; } } @@ -836,7 +837,7 @@ machine(MachineType:L1Cache, "AMD Hammer-like protocol") out_msg.addr := address; out_msg.Type := CoherenceResponseType:UNBLOCKM; out_msg.Sender := machineID; - out_msg.Destination.add(map_Address_to_Directory(address)); + out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory)); out_msg.MessageSize := MessageSizeType:Unblock_Control; } } @@ -848,7 +849,7 @@ machine(MachineType:L1Cache, "AMD Hammer-like protocol") out_msg.Type := CoherenceResponseType:UNBLOCKS; out_msg.Sender := machineID; out_msg.CurOwner := tbe.CurOwner; - out_msg.Destination.add(map_Address_to_Directory(address)); + out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory)); out_msg.MessageSize := MessageSizeType:Unblock_Control; } } @@ -1126,7 +1127,7 @@ machine(MachineType:L1Cache, "AMD Hammer-like protocol") assert(is_valid(tbe)); out_msg.addr := address; out_msg.Sender := machineID; - out_msg.Destination.add(map_Address_to_Directory(address)); + out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory)); out_msg.Dirty := tbe.Dirty; if (tbe.Dirty) { out_msg.Type := CoherenceResponseType:WB_DIRTY; @@ -1157,7 +1158,7 @@ machine(MachineType:L1Cache, "AMD Hammer-like protocol") assert(is_valid(tbe)); out_msg.addr := address; out_msg.Sender := machineID; - out_msg.Destination.add(map_Address_to_Directory(address)); + out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory)); out_msg.DataBlk := tbe.DataBlk; out_msg.Dirty := tbe.Dirty; if (tbe.Dirty) { -- cgit v1.2.3