inorder: activate thread on cache miss

-Support ability to activate next ready thread after a cache miss
through the activateNextReadyContext/Thread() functions
-To support this a "readyList" of thread ids is added
-After a cache miss, thread will suspend and then call
activitynextreadythread

1 files changed, 9 insertions, 1 deletions

diff --git a/src/cpu/inorder/pipeline_stage.cc b/src/cpu/inorder/pipeline_stage.cc
index 1fd7150da..30a3733b0 100644
--- a/src/cpu/inorder/pipeline_stage.cc
+++ b/src/cpu/inorder/pipeline_stage.cc
@@ -951,7 +951,15 @@ PipelineStage::processInstSchedule(DynInstPtr inst)
                     // Remove Thread From Pipeline & Resource Pool
                     inst->squashingStage = stageNum;         
                     inst->bdelaySeqNum = inst->seqNum;                               
-                    cpu->squashFromMemStall(inst, tid);                    
+                    cpu->squashFromMemStall(inst, tid);  
+
+                    // Switch On Cache Miss
+                    //=====================
+                    // Suspend Thread at end of cycle
+                    cpu->suspendContext(tid);                    
+
+                    // Activate Next Ready Thread at end of cycle
+                    cpu->activateNextReadyContext();                                                                                               
                 }
                 
                 break;