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 <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/2903
Reviewed-by: Bradford Beckmann <brad.beckmann@amd.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>

1 files changed, 22 insertions, 15 deletions

diff --git a/src/mem/protocol/MOESI_AMD_Base-CorePair.sm b/src/mem/protocol/MOESI_AMD_Base-CorePair.sm
index 76fe77230..b77f3723a 100644
--- a/src/mem/protocol/MOESI_AMD_Base-CorePair.sm
+++ b/src/mem/protocol/MOESI_AMD_Base-CorePair.sm
@@ -230,6 +230,7 @@ machine(MachineType:CorePair, "CP-like Core Coherence")
   void wakeUpAllBuffers();
   void wakeUpBuffers(Addr a);
   Cycles curCycle();
+  MachineID mapAddressToMachine(Addr addr, MachineType mtype);
 
   // END STRUCTURE DEFINITIONS
 
@@ -690,7 +691,7 @@ machine(MachineType:CorePair, "CP-like Core Coherence")
       out_msg.addr := address;
       out_msg.Type := CoherenceRequestType:RdBlk;
       out_msg.Requestor := machineID;
-      out_msg.Destination.add(map_Address_to_Directory(address));
+      out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory));
       DPRINTF(RubySlicc,"%s\n",out_msg.Destination);
       out_msg.MessageSize := MessageSizeType:Request_Control;
       out_msg.InitialRequestTime := curCycle();
@@ -702,7 +703,7 @@ machine(MachineType:CorePair, "CP-like Core Coherence")
       out_msg.addr := address;
       out_msg.Type := CoherenceRequestType:RdBlkM;
       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();
     }
@@ -713,7 +714,7 @@ machine(MachineType:CorePair, "CP-like Core Coherence")
       out_msg.addr := address;
       out_msg.Type := CoherenceRequestType:RdBlkS;
       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();
     }
@@ -726,7 +727,7 @@ machine(MachineType:CorePair, "CP-like Core Coherence")
       assert(is_valid(cache_entry));
       out_msg.DataBlk := cache_entry.DataBlk;
       assert(cache_entry.Dirty);
-      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.Type := CoherenceRequestType:VicDirty;
       out_msg.InitialRequestTime := curCycle();
@@ -742,7 +743,7 @@ machine(MachineType:CorePair, "CP-like Core Coherence")
     enqueue(requestNetwork_out, CPURequestMsg, issue_latency) {
       out_msg.addr := address;
       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.Type := CoherenceRequestType:VicClean;
       out_msg.InitialRequestTime := curCycle();
@@ -1104,7 +1105,7 @@ machine(MachineType:CorePair, "CP-like Core Coherence")
         out_msg.addr := address;
         out_msg.Type := CoherenceResponseType:StaleNotif;
         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:Response_Control;
         DPRINTF(RubySlicc, "%s\n", out_msg);
       }
@@ -1117,7 +1118,7 @@ machine(MachineType:CorePair, "CP-like Core Coherence")
         out_msg.addr := address;
         out_msg.Type := CoherenceResponseType:CPUData;
         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.Shared) {
@@ -1137,7 +1138,8 @@ machine(MachineType:CorePair, "CP-like Core Coherence")
       out_msg.addr := address;
       out_msg.Type := CoherenceResponseType:CPUPrbResp;  // L3 and CPUs respond in same way to probes
       out_msg.Sender := machineID;
-      out_msg.Destination.add(map_Address_to_Directory(address)); // will this always be ok? probably not for multisocket
+      // will this always be ok? probably not for multisocket
+      out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory));
       out_msg.Dirty := false;
       out_msg.Hit := false;
       out_msg.Ntsl := true;
@@ -1151,7 +1153,8 @@ machine(MachineType:CorePair, "CP-like Core Coherence")
       out_msg.addr := address;
       out_msg.Type := CoherenceResponseType:CPUPrbResp;  // L3 and CPUs respond in same way to probes
       out_msg.Sender := machineID;
-      out_msg.Destination.add(map_Address_to_Directory(address)); // will this always be ok? probably not for multisocket
+      // will this always be ok? probably not for multisocket
+      out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory));
       out_msg.Dirty := false;
       out_msg.Ntsl := true;
       out_msg.Hit := false;
@@ -1165,7 +1168,8 @@ machine(MachineType:CorePair, "CP-like Core Coherence")
       out_msg.addr := address;
       out_msg.Type := CoherenceResponseType:CPUPrbResp;  // L3 and CPUs respond in same way to probes
       out_msg.Sender := machineID;
-      out_msg.Destination.add(map_Address_to_Directory(address)); // will this always be ok? probably not for multisocket
+      // will this always be ok? probably not for multisocket
+      out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory));
       assert(addressInCore(address) || is_valid(tbe));
       out_msg.Dirty := false;  // only true if sending back data i think
       out_msg.Hit := true;
@@ -1180,7 +1184,8 @@ machine(MachineType:CorePair, "CP-like Core Coherence")
       out_msg.addr := address;
       out_msg.Type := CoherenceResponseType:CPUPrbResp;  // L3 and CPUs respond in same way to probes
       out_msg.Sender := machineID;
-      out_msg.Destination.add(map_Address_to_Directory(address)); // will this always be ok? probably not for multisocket
+      // will this always be ok? probably not for multisocket
+      out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory));
       if (addressInCore(address)) {
         out_msg.Hit := true;
       } else {
@@ -1199,7 +1204,8 @@ machine(MachineType:CorePair, "CP-like Core Coherence")
       out_msg.addr := address;
       out_msg.Type := CoherenceResponseType:CPUPrbResp;
       out_msg.Sender := machineID;
-      out_msg.Destination.add(map_Address_to_Directory(address)); // will this always be ok? probably not for multisocket
+      // will this always be ok? probably not for multisocket
+      out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory));
       out_msg.DataBlk := cache_entry.DataBlk;
       assert(cache_entry.Dirty);
       out_msg.Dirty := true;
@@ -1215,7 +1221,8 @@ machine(MachineType:CorePair, "CP-like Core Coherence")
       out_msg.addr := address;
       out_msg.Type := CoherenceResponseType:CPUPrbResp;
       out_msg.Sender := machineID;
-      out_msg.Destination.add(map_Address_to_Directory(address)); // will this always be ok? probably not for multisocket
+      // will this always be ok? probably not for multisocket
+      out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory));
       out_msg.DataBlk := cache_entry.DataBlk;
       assert(cache_entry.Dirty);
       out_msg.Dirty := true;
@@ -1231,7 +1238,7 @@ machine(MachineType:CorePair, "CP-like Core Coherence")
       out_msg.addr := address;
       out_msg.Type := CoherenceResponseType:CPUPrbResp;
       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;
       assert(tbe.Dirty);
       out_msg.Dirty := true;
@@ -1249,7 +1256,7 @@ machine(MachineType:CorePair, "CP-like Core Coherence")
   action(uu_sendUnblock, "uu", desc="state changed, unblock") {
     enqueue(unblockNetwork_out, UnblockMsg, issue_latency) {
       out_msg.addr := address;
-      out_msg.Destination.add(map_Address_to_Directory(address));
+      out_msg.Destination.add(mapAddressToMachine(address, MachineType:Directory));
       out_msg.MessageSize := MessageSizeType:Unblock_Control;
       DPRINTF(RubySlicc, "%s\n", out_msg);
     }