Merge from head.

[gem5.git] / src / cpu / base.cc

diff --git a/src/cpu/base.cc b/src/cpu/base.cc
index 8440d23209fbf4d8455de3ec729b8438a7096751..cf007a06b21f4d1d5f062f3fea3f80e4687b0f23 100644 (file)
--- a/src/cpu/base.cc
+++ b/src/cpu/base.cc
@@ -63,7 +63,7 @@ int maxThreadsPerCPU = 1;
 
 CPUProgressEvent::CPUProgressEvent(EventQueue *q, Tick ival,
                                    BaseCPU *_cpu)
-    : Event(q, Event::Stat_Event_Pri), interval(ival),
+    : Event(q, Event::Progress_Event_Pri), interval(ival),
       lastNumInst(0), cpu(_cpu)
 {
     if (interval)
@@ -91,7 +91,7 @@ CPUProgressEvent::process()
 const char *
 CPUProgressEvent::description()
 {
-    return "CPU Progress event";
+    return "CPU Progress";
 }
 
 #if FULL_SYSTEM
@@ -179,10 +179,9 @@ BaseCPU::BaseCPU(Params *p)
         if (p->functionTraceStart == 0) {
             functionTracingEnabled = true;
         } else {
-            Event *e =
-                new EventWrapper<BaseCPU, &BaseCPU::enableFunctionTrace>(this,
-                                                                         true);
-            e->schedule(p->functionTraceStart);
+            new EventWrapper<BaseCPU, &BaseCPU::enableFunctionTrace>(this,
+                                                                     p->functionTraceStart,
+                                                                     true);
         }
     }
 #if FULL_SYSTEM
@@ -226,7 +225,8 @@ BaseCPU::startup()
 #endif
 
     if (params->progress_interval) {
-        new CPUProgressEvent(&mainEventQueue, params->progress_interval,
+        new CPUProgressEvent(&mainEventQueue,
+                             cycles(params->progress_interval),
                              this);
     }
 }
@@ -269,12 +269,10 @@ Tick
 BaseCPU::nextCycle(Tick begin_tick)
 {
     Tick next_tick = begin_tick;
-    next_tick -= (next_tick % clock);
+    if (next_tick % clock != 0)
+        next_tick = next_tick - (next_tick % clock) + clock;
     next_tick += phase;
 
-    while (next_tick < curTick)
-        next_tick += clock;
-
     assert(next_tick >= curTick);
     return next_tick;
 }
@@ -319,7 +317,7 @@ BaseCPU::switchOut()
 }
 
 void
-BaseCPU::takeOverFrom(BaseCPU *oldCPU)
+BaseCPU::takeOverFrom(BaseCPU *oldCPU, Port *ic, Port *dc)
 {
     assert(threadContexts.size() == oldCPU->threadContexts.size());
 
@@ -352,6 +350,26 @@ BaseCPU::takeOverFrom(BaseCPU *oldCPU)
 //    if (profileEvent)
 //        profileEvent->schedule(curTick);
 #endif
+
+    // Connect new CPU to old CPU's memory only if new CPU isn't
+    // connected to anything.  Also connect old CPU's memory to new
+    // CPU.
+    Port *peer;
+    if (ic->getPeer() == NULL) {
+        peer = oldCPU->getPort("icache_port")->getPeer();
+        ic->setPeer(peer);
+    } else {
+        peer = ic->getPeer();
+    }
+    peer->setPeer(ic);
+
+    if (dc->getPeer() == NULL) {
+        peer = oldCPU->getPort("dcache_port")->getPeer();
+        dc->setPeer(peer);
+    } else {
+        peer = dc->getPeer();
+    }
+    peer->setPeer(dc);
 }
 
 
@@ -371,12 +389,6 @@ BaseCPU::ProfileEvent::process()
     schedule(curTick + interval);
 }
 
-void
-BaseCPU::post_interrupt(int int_type)
-{
-    interrupts.post(int_type);
-}
-
 void
 BaseCPU::post_interrupt(int int_num, int index)
 {
@@ -395,6 +407,11 @@ BaseCPU::clear_interrupts()
     interrupts.clear_all();
 }
 
+uint64_t
+BaseCPU::get_interrupts(int int_num)
+{
+    return interrupts.get_vec(int_num);
+}
 
 void
 BaseCPU::serialize(std::ostream &os)