ruby: added Packet interface to makeRequest and isReady.

[gem5.git] / src / mem / PhysicalMemory.py

diff --git a/src/mem/PhysicalMemory.py b/src/mem/PhysicalMemory.py
index 2ef3df7c1738aa7d2b2247cf213a4c44978b8bf7..95cc73daa44a3746badbaea7809907f88fcac5de 100644 (file)
--- a/src/mem/PhysicalMemory.py
+++ b/src/mem/PhysicalMemory.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2005-2007 The Regents of The University of Michigan
+# Copyright (c) 2005-2008 The Regents of The University of Michigan
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -35,8 +35,10 @@ class PhysicalMemory(MemObject):
     port = VectorPort("the access port")
     range = Param.AddrRange(AddrRange('128MB'), "Device Address")
     file = Param.String('', "memory mapped file")
-    latency = Param.Latency('1t', "latency of an access")
+    latency = Param.Latency('30ns', "latency of an access")
+    latency_var = Param.Latency('0ns', "access variablity")
     zero = Param.Bool(False, "zero initialize memory")
+    null = Param.Bool(False, "do not store data, always return zero")
 
 class DRAMMemory(PhysicalMemory):
     type = 'DRAMMemory'
@@ -46,12 +48,12 @@ class DRAMMemory(PhysicalMemory):
     mem_actpolicy = Param.String("open", "Open/Close policy")
     memctrladdr_type = Param.String("interleaved", "Mapping interleaved or direct")
     bus_width = Param.Int(16, "")
-    act_lat = Param.Int(2, "RAS to CAS delay")
-    cas_lat = Param.Int(1, "CAS delay")
-    war_lat = Param.Int(2, "write after read delay")
-    pre_lat = Param.Int(2, "precharge delay")
-    dpl_lat = Param.Int(2, "data in to precharge delay")
-    trc_lat = Param.Int(6, "row cycle delay")
+    act_lat = Param.Latency("2ns", "RAS to CAS delay")
+    cas_lat = Param.Latency("1ns", "CAS delay")
+    war_lat = Param.Latency("2ns", "write after read delay")
+    pre_lat = Param.Latency("2ns", "precharge delay")
+    dpl_lat = Param.Latency("2ns", "data in to precharge delay")
+    trc_lat = Param.Latency("6ns", "row cycle delay")
     num_banks = Param.Int(4, "Number of Banks")
     num_cpus = Param.Int(4, "Number of CPUs connected to DRAM")