From 16882b04838c33e7de5456937b8b069547827b2a Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Sun, 7 Aug 2011 09:21:48 -0700
Subject: Translation: Use a pointer type as the template argument.

This allows regular pointers and reference counted pointers without having to
use any shim structures or other tricks.
---
 src/cpu/base_dyn_inst.hh | 13 +++++++------
 src/cpu/simple/timing.cc | 24 ++++++++++++------------
 src/cpu/translation.hh   |  8 ++++----
 3 files changed, 23 insertions(+), 22 deletions(-)

diff --git a/src/cpu/base_dyn_inst.hh b/src/cpu/base_dyn_inst.hh
index 18a178c4a..cb9294481 100644
--- a/src/cpu/base_dyn_inst.hh
+++ b/src/cpu/base_dyn_inst.hh
@@ -91,6 +91,7 @@ class BaseDynInst : public FastAlloc, public RefCounted
 
     // The DynInstPtr type.
     typedef typename Impl::DynInstPtr DynInstPtr;
+    typedef RefCountingPtr<BaseDynInst<Impl> > BaseDynInstPtr;
 
     // The list of instructions iterator type.
     typedef typename std::list<DynInstPtr>::iterator ListIt;
@@ -950,8 +951,8 @@ BaseDynInst<Impl>::initiateTranslation(RequestPtr req, RequestPtr sreqLow,
             new WholeTranslationState(req, NULL, res, mode);
 
         // One translation if the request isn't split.
-        DataTranslation<BaseDynInst<Impl> > *trans =
-            new DataTranslation<BaseDynInst<Impl> >(this, state);
+        DataTranslation<BaseDynInstPtr> *trans =
+            new DataTranslation<BaseDynInstPtr>(this, state);
         cpu->dtb->translateTiming(req, thread->getTC(), trans, mode);
         if (!translationCompleted) {
             // Save memory requests.
@@ -964,10 +965,10 @@ BaseDynInst<Impl>::initiateTranslation(RequestPtr req, RequestPtr sreqLow,
             new WholeTranslationState(req, sreqLow, sreqHigh, NULL, res, mode);
 
         // Two translations when the request is split.
-        DataTranslation<BaseDynInst<Impl> > *stransLow =
-            new DataTranslation<BaseDynInst<Impl> >(this, state, 0);
-        DataTranslation<BaseDynInst<Impl> > *stransHigh =
-            new DataTranslation<BaseDynInst<Impl> >(this, state, 1);
+        DataTranslation<BaseDynInstPtr> *stransLow =
+            new DataTranslation<BaseDynInstPtr>(this, state, 0);
+        DataTranslation<BaseDynInstPtr> *stransHigh =
+            new DataTranslation<BaseDynInstPtr>(this, state, 1);
 
         cpu->dtb->translateTiming(sreqLow, thread->getTC(), stransLow, mode);
         cpu->dtb->translateTiming(sreqHigh, thread->getTC(), stransHigh, mode);
diff --git a/src/cpu/simple/timing.cc b/src/cpu/simple/timing.cc
index 1c726ba57..e2151d974 100644
--- a/src/cpu/simple/timing.cc
+++ b/src/cpu/simple/timing.cc
@@ -461,18 +461,18 @@ TimingSimpleCPU::readMem(Addr addr, uint8_t *data,
         WholeTranslationState *state =
             new WholeTranslationState(req, req1, req2, new uint8_t[size],
                                       NULL, mode);
-        DataTranslation<TimingSimpleCPU> *trans1 =
-            new DataTranslation<TimingSimpleCPU>(this, state, 0);
-        DataTranslation<TimingSimpleCPU> *trans2 =
-            new DataTranslation<TimingSimpleCPU>(this, state, 1);
+        DataTranslation<TimingSimpleCPU *> *trans1 =
+            new DataTranslation<TimingSimpleCPU *>(this, state, 0);
+        DataTranslation<TimingSimpleCPU *> *trans2 =
+            new DataTranslation<TimingSimpleCPU *>(this, state, 1);
 
         thread->dtb->translateTiming(req1, tc, trans1, mode);
         thread->dtb->translateTiming(req2, tc, trans2, mode);
     } else {
         WholeTranslationState *state =
             new WholeTranslationState(req, new uint8_t[size], NULL, mode);
-        DataTranslation<TimingSimpleCPU> *translation
-            = new DataTranslation<TimingSimpleCPU>(this, state);
+        DataTranslation<TimingSimpleCPU *> *translation
+            = new DataTranslation<TimingSimpleCPU *>(this, state);
         thread->dtb->translateTiming(req, tc, translation, mode);
     }
 
@@ -530,18 +530,18 @@ TimingSimpleCPU::writeMem(uint8_t *data, unsigned size,
 
         WholeTranslationState *state =
             new WholeTranslationState(req, req1, req2, newData, res, mode);
-        DataTranslation<TimingSimpleCPU> *trans1 =
-            new DataTranslation<TimingSimpleCPU>(this, state, 0);
-        DataTranslation<TimingSimpleCPU> *trans2 =
-            new DataTranslation<TimingSimpleCPU>(this, state, 1);
+        DataTranslation<TimingSimpleCPU *> *trans1 =
+            new DataTranslation<TimingSimpleCPU *>(this, state, 0);
+        DataTranslation<TimingSimpleCPU *> *trans2 =
+            new DataTranslation<TimingSimpleCPU *>(this, state, 1);
 
         thread->dtb->translateTiming(req1, tc, trans1, mode);
         thread->dtb->translateTiming(req2, tc, trans2, mode);
     } else {
         WholeTranslationState *state =
             new WholeTranslationState(req, newData, res, mode);
-        DataTranslation<TimingSimpleCPU> *translation =
-            new DataTranslation<TimingSimpleCPU>(this, state);
+        DataTranslation<TimingSimpleCPU *> *translation =
+            new DataTranslation<TimingSimpleCPU *>(this, state);
         thread->dtb->translateTiming(req, tc, translation, mode);
     }
 
diff --git a/src/cpu/translation.hh b/src/cpu/translation.hh
index 60953540f..b6bc2182c 100644
--- a/src/cpu/translation.hh
+++ b/src/cpu/translation.hh
@@ -214,21 +214,21 @@ class WholeTranslationState
  * translation state class indicate that the whole translation is complete
  * then the execution context is informed.
  */
-template <class ExecContext>
+template <class ExecContextPtr>
 class DataTranslation : public BaseTLB::Translation
 {
   protected:
-    ExecContext *xc;
+    ExecContextPtr xc;
     WholeTranslationState *state;
     int index;
 
   public:
-    DataTranslation(ExecContext *_xc, WholeTranslationState* _state)
+    DataTranslation(ExecContextPtr _xc, WholeTranslationState* _state)
         : xc(_xc), state(_state), index(0)
     {
     }
 
-    DataTranslation(ExecContext *_xc, WholeTranslationState* _state,
+    DataTranslation(ExecContextPtr _xc, WholeTranslationState* _state,
                     int _index)
         : xc(_xc), state(_state), index(_index)
     {
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