From a0a952d5ff8e27d34c7fa68fe5199c57670c53d1 Mon Sep 17 00:00:00 2001
From: Kevin Lim <ktlim@umich.edu>
Date: Thu, 13 Jul 2006 13:08:58 -0400
Subject: Update for changes to draining.

--HG--
extra : convert_revision : 5038dd8be72827f40cf89318db0b2bb4f9bbd864
---
 src/cpu/o3/cpu.cc | 16 +++++++++-------
 src/cpu/o3/cpu.hh |  2 +-
 2 files changed, 10 insertions(+), 8 deletions(-)

(limited to 'src/cpu/o3')

diff --git a/src/cpu/o3/cpu.cc b/src/cpu/o3/cpu.cc
index 7d2727401..6e9b425c0 100644
--- a/src/cpu/o3/cpu.cc
+++ b/src/cpu/o3/cpu.cc
@@ -441,7 +441,7 @@ FullO3CPU<Impl>::tick()
 
     if (!tickEvent.scheduled()) {
         if (_status == SwitchedOut ||
-            getState() == SimObject::DrainedTiming) {
+            getState() == SimObject::Drained) {
             // increment stat
             lastRunningCycle = curTick;
         } else if (!activityRec.active()) {
@@ -803,7 +803,7 @@ FullO3CPU<Impl>::unserialize(Checkpoint *cp, const std::string &section)
 }
 
 template <class Impl>
-bool
+unsigned int
 FullO3CPU<Impl>::drain(Event *drain_event)
 {
     drainCount = 0;
@@ -815,7 +815,7 @@ FullO3CPU<Impl>::drain(Event *drain_event)
 
     // Wake the CPU and record activity so everything can drain out if
     // the CPU was not able to immediately drain.
-    if (getState() != SimObject::DrainedTiming) {
+    if (getState() != SimObject::Drained) {
         // A bit of a hack...set the drainEvent after all the drain()
         // calls have been made, that way if all of the stages drain
         // immediately, the signalDrained() function knows not to call
@@ -825,9 +825,9 @@ FullO3CPU<Impl>::drain(Event *drain_event)
         wakeCPU();
         activityRec.activity();
 
-        return false;
+        return 1;
     } else {
-        return true;
+        return 0;
     }
 }
 
@@ -835,19 +835,21 @@ template <class Impl>
 void
 FullO3CPU<Impl>::resume()
 {
+    assert(system->getMemoryMode() == System::Timing);
     fetch.resume();
     decode.resume();
     rename.resume();
     iew.resume();
     commit.resume();
 
+    changeState(SimObject::Running);
+
     if (_status == SwitchedOut || _status == Idle)
         return;
 
     if (!tickEvent.scheduled())
         tickEvent.schedule(curTick);
     _status = Running;
-    changeState(SimObject::Timing);
 }
 
 template <class Impl>
@@ -858,7 +860,7 @@ FullO3CPU<Impl>::signalDrained()
         if (tickEvent.scheduled())
             tickEvent.squash();
 
-        changeState(SimObject::DrainedTiming);
+        changeState(SimObject::Drained);
 
         if (drainEvent) {
             drainEvent->process();
diff --git a/src/cpu/o3/cpu.hh b/src/cpu/o3/cpu.hh
index 2fbd013ac..83cb966e3 100644
--- a/src/cpu/o3/cpu.hh
+++ b/src/cpu/o3/cpu.hh
@@ -330,7 +330,7 @@ class FullO3CPU : public BaseO3CPU
 
     /** Starts draining the CPU's pipeline of all instructions in
      * order to stop all memory accesses. */
-    virtual bool drain(Event *drain_event);
+    virtual unsigned int drain(Event *drain_event);
 
     /** Resumes execution after a drain. */
     virtual void resume();
-- 
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