Fix so that O3CPU doesnt segfault on exit.

Major thing was to not execute commit if there are no active threads in CPU.

src/cpu/o3/alpha/thread_context.hh:
    call deallocate instead of deallocateContext
src/cpu/o3/commit_impl.hh:
    dont run commit stage if there are no instructions
src/cpu/o3/cpu.cc:
    add deallocate event, deactivateThread function, and edit deallocateContext.
src/cpu/o3/cpu.hh:
    add deallocate event and add optional delay to deallocateContext
src/cpu/o3/thread_context.hh:
    optional delay for deallocate
src/cpu/o3/thread_context_impl.hh:
    edit DPRINTFs to say Thread Context instead of Alpha TC
src/cpu/thread_context.hh:
    optional delay
src/sim/syscall_emul.hh:
    name stuff

--HG--
extra : convert_revision : f4033e1f66b3043d30ad98dcc70d8b193dea70b6

1 files changed, 10 insertions, 6 deletions

diff --git a/src/cpu/o3/thread_context_impl.hh b/src/cpu/o3/thread_context_impl.hh
index cfb71f623..bf8cbf850 100755
--- a/src/cpu/o3/thread_context_impl.hh
+++ b/src/cpu/o3/thread_context_impl.hh
@@ -115,7 +115,8 @@ template <class Impl>
 void
 O3ThreadContext<Impl>::activate(int delay)
 {
-    DPRINTF(O3CPU, "Calling activate on AlphaTC\n");
+    DPRINTF(O3CPU, "Calling activate on Thread Context %d\n",
+            getThreadNum());
 
     if (thread->status() == ThreadContext::Active)
         return;
@@ -139,7 +140,8 @@ template <class Impl>
 void
 O3ThreadContext<Impl>::suspend()
 {
-    DPRINTF(O3CPU, "Calling suspend on AlphaTC\n");
+    DPRINTF(O3CPU, "Calling suspend on Thread Context %d\n",
+            getThreadNum());
 
     if (thread->status() == ThreadContext::Suspended)
         return;
@@ -163,22 +165,24 @@ O3ThreadContext<Impl>::suspend()
 
 template <class Impl>
 void
-O3ThreadContext<Impl>::deallocate()
+O3ThreadContext<Impl>::deallocate(int delay)
 {
-    DPRINTF(O3CPU, "Calling deallocate on AlphaTC\n");
+    DPRINTF(O3CPU, "Calling deallocate on Thread Context %d\n",
+            getThreadNum());
 
     if (thread->status() == ThreadContext::Unallocated)
         return;
 
     thread->setStatus(ThreadContext::Unallocated);
-    cpu->deallocateContext(thread->readTid());
+    cpu->deallocateContext(thread->readTid(), delay);
 }
 
 template <class Impl>
 void
 O3ThreadContext<Impl>::halt()
 {
-    DPRINTF(O3CPU, "Calling halt on AlphaTC\n");
+    DPRINTF(O3CPU, "Calling halt on Thread Context %d\n",
+            getThreadNum());
 
     if (thread->status() == ThreadContext::Halted)
         return;