Updates to O3 CPU. It should now work in FS mode, although sampling still has a bug.

src/cpu/o3/commit_impl.hh:
    Fixes for compile and sampling.
src/cpu/o3/cpu.cc:
    Deallocate and activate threads properly.  Also hopefully fix being able to use caches while switching over.
src/cpu/o3/cpu.hh:
    Fixes for deallocating and activating threads.
src/cpu/o3/fetch_impl.hh:
src/cpu/o3/lsq_unit.hh:
    Handle getting back a BadAddress result from the access.
src/cpu/o3/iew_impl.hh:
    More debug output.
src/cpu/o3/lsq_unit_impl.hh:
    Fixup store conditional handling (still a bit of a hack, but works now).

    Also handle getting back a BadAddress result from the access.
src/cpu/o3/thread_context_impl.hh:
    Deallocate context now records if the context should be fully removed.

--HG--
extra : convert_revision : 55f81660602d0e25367ce1f5b0b9cfc62abe7bf9

1 files changed, 10 insertions, 9 deletions

diff --git a/src/cpu/o3/cpu.hh b/src/cpu/o3/cpu.hh
index dcdcd1fe6..fe510519c 100644
--- a/src/cpu/o3/cpu.hh
+++ b/src/cpu/o3/cpu.hh
@@ -202,9 +202,12 @@ class FullO3CPU : public BaseO3CPU
     class DeallocateContextEvent : public Event
     {
       private:
-        /** Number of Thread to Activate */
+        /** Number of Thread to deactivate */
         int tid;
 
+        /** Should the thread be removed from the CPU? */
+        bool remove;
+
         /** Pointer to the CPU. */
         FullO3CPU<Impl> *cpu;
 
@@ -218,12 +221,15 @@ class FullO3CPU : public BaseO3CPU
         /** Processes the event, calling activateThread() on the CPU. */
         void process();
 
+        /** Sets whether the thread should also be removed from the CPU. */
+        void setRemove(bool _remove) { remove = _remove; }
+
         /** Returns the description of the event. */
         const char *description();
     };
 
     /** Schedule cpu to deallocate thread context.*/
-    void scheduleDeallocateContextEvent(int tid, int delay)
+    void scheduleDeallocateContextEvent(int tid, bool remove, int delay)
     {
         // Schedule thread to activate, regardless of its current state.
         if (deallocateContextEvent[tid].squashed())
@@ -296,9 +302,9 @@ class FullO3CPU : public BaseO3CPU
     void suspendContext(int tid);
 
     /** Remove Thread from Active Threads List &&
-     *  Remove Thread Context from CPU.
+     *  Possibly Remove Thread Context from CPU.
      */
-    void deallocateContext(int tid, int delay = 1);
+    bool deallocateContext(int tid, bool remove, int delay = 1);
 
     /** Remove Thread from Active Threads List &&
      *  Remove Thread Context from CPU.
@@ -626,11 +632,6 @@ class FullO3CPU : public BaseO3CPU
     /** Pointers to all of the threads in the CPU. */
     std::vector<Thread *> thread;
 
-    /** Pointer to the icache interface. */
-    MemInterface *icacheInterface;
-    /** Pointer to the dcache interface. */
-    MemInterface *dcacheInterface;
-
     /** Whether or not the CPU should defer its registration. */
     bool deferRegistration;