mcpat: Adds McPAT performance counters

Updated patches from Rick Strong's set that modify performance counters for
McPAT

src/sim/System.py

@@ -1,4 +1,5 @@
 # Copyright (c) 2005-2007 The Regents of The University of Michigan
+# Copyright (c) 2011 Regents of the University of California
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -25,6 +26,7 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 # Authors: Nathan Binkert
+#          Rick Strong
 
 from m5.SimObject import SimObject
 from m5.defines import buildEnv
@@ -44,6 +46,7 @@ class System(SimObject):
 
     physmem = Param.PhysicalMemory(Parent.any, "physical memory")
     mem_mode = Param.MemoryMode('atomic', "The mode the memory system is in")
+
     if buildEnv['FULL_SYSTEM']:
         abstract = True
         boot_cpu_frequency = Param.Frequency(Self.cpu[0].clock.frequency,

src/sim/system.cc

@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2003-2006 The Regents of The University of Michigan
+ * Copyright (c) 2011 Regents of the University of California
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -29,6 +30,7 @@
  *          Lisa Hsu
  *          Nathan Binkert
  *          Ali Saidi
+ *          Rick Strong
  */
 
 #include "arch/isa_traits.hh"
@@ -70,7 +72,9 @@ System::System(Params *p)
       pagePtr(0),
       nextPID(0),
 #endif
-      memoryMode(p->mem_mode), _params(p)
+      memoryMode(p->mem_mode), _params(p),
+      totalNumInsts(0), 
+      instEventQueue("system instruction-based event queue")
 {
     // add self to global system list
     systemList.push_back(this);
@@ -276,6 +280,13 @@ System::freeMemSize()
 
 #endif
 
+void
+System::resume()
+{
+    SimObject::resume();
+    totalNumInsts = 0;
+}
+
 void
 System::serialize(ostream &os)
 {

src/sim/system.hh

@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2002-2005 The Regents of The University of Michigan
+ * Copyright (c) 2011 Regents of the University of California
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -28,6 +29,7 @@
  * Authors: Steve Reinhardt
  *          Lisa Hsu
  *          Nathan Binkert
+ *          Rick Strong
  */
 
 #ifndef __SYSTEM_HH__
@@ -244,8 +246,12 @@ class System : public SimObject
 
     void serialize(std::ostream &os);
     void unserialize(Checkpoint *cp, const std::string &section);
+    virtual void resume();
 
   public:
+    Counter totalNumInsts;
+    EventQueue instEventQueue;
+
     ////////////////////////////////////////////
     //
     // STATIC GLOBAL SYSTEM LIST