From b4e0ef78379dd5bab0ee6ec824bca3f51dd484c6 Mon Sep 17 00:00:00 2001
From: Korey Sewell <ksewell@umich.edu>
Date: Sun, 31 Jan 2010 18:28:12 -0500
Subject: [PATCH] inorder: set thread status' set Active/Suspended/Halted
 status for threads.  useful for system when determining if/when to exit
 simulation

---
 src/cpu/inorder/cpu.cc            | 12 ++++++++++--
 src/cpu/inorder/thread_context.hh |  1 -
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/cpu/inorder/cpu.cc b/src/cpu/inorder/cpu.cc
index 5db86b258..d8fea79d9 100644
--- a/src/cpu/inorder/cpu.cc
+++ b/src/cpu/inorder/cpu.cc
@@ -711,6 +711,8 @@ InOrderCPU::activateThread(ThreadID tid)
 
         thread[tid]->lastActivate = curTick;            
 
+        tcBase(tid)->setStatus(ThreadContext::Active);    
+
         wakeCPU();
     }
 }
@@ -750,9 +752,11 @@ InOrderCPU::deactivateThread(ThreadID tid)
 
         removePipelineStalls(*thread_it);
 
-        //@TODO: change stage status' to Idle?
-
         activeThreads.erase(thread_it);
+
+        // Ideally, this should be triggered from the
+        // suspendContext/Thread functions
+        tcBase(tid)->setStatus(ThreadContext::Suspended);    
     }
 
     assert(!isThreadActive(tid));    
@@ -854,6 +858,8 @@ InOrderCPU::haltThread(ThreadID tid)
     squashThreadInPipeline(tid);   
     haltedThreads.push_back(tid);    
 
+    tcBase(tid)->setStatus(ThreadContext::Halted);    
+
     if (threadModel == SwitchOnCacheMiss) {        
         activateNextReadyContext();    
     }
@@ -872,6 +878,8 @@ InOrderCPU::suspendThread(ThreadID tid)
     deactivateThread(tid);
     suspendedThreads.push_back(tid);    
     thread[tid]->lastSuspend = curTick;    
+
+    tcBase(tid)->setStatus(ThreadContext::Suspended);    
 }
 
 void
diff --git a/src/cpu/inorder/thread_context.hh b/src/cpu/inorder/thread_context.hh
index 820f3077f..6dd5f192f 100644
--- a/src/cpu/inorder/thread_context.hh
+++ b/src/cpu/inorder/thread_context.hh
@@ -64,7 +64,6 @@ class InOrderThreadContext : public ThreadContext
     /** Pointer to the thread state that this TC corrseponds to. */
     InOrderThreadState *thread;
 
-
     /** Returns a pointer to the ITB. */
     /** @TODO: PERF: Should we bind this to a pointer in constructor? */
     TheISA::TLB *getITBPtr() { return cpu->getITBPtr(); }