Decoder: Remove the thread context get/set from the decoder.

This interface is no longer used, and getting rid of it simplifies the
decoders and code that sets up the decoders. The thread context had been used
to read architectural state which was used to contextualize the instruction
memory as it came in. That was changed so that the state is now sent to the
decoders to keep locally if/when it changes. That's significantly more
efficient.

Committed by: Nilay Vaish <nilay@cs.wisc.edu>

2 files changed, 1 insertions, 16 deletions

diff --git a/src/arch/x86/decoder.cc b/src/arch/x86/decoder.cc
index 9dcb02902..f42fb28bf 100644
--- a/src/arch/x86/decoder.cc
+++ b/src/arch/x86/decoder.cc
@@ -33,7 +33,6 @@
 #include "base/misc.hh"
 #include "base/trace.hh"
 #include "base/types.hh"
-#include "cpu/thread_context.hh"
 #include "debug/Decoder.hh"
 
 namespace X86ISA
diff --git a/src/arch/x86/decoder.hh b/src/arch/x86/decoder.hh
index 796f9eef9..6f55ab26f 100644
--- a/src/arch/x86/decoder.hh
+++ b/src/arch/x86/decoder.hh
@@ -44,8 +44,6 @@
 #include "cpu/static_inst.hh"
 #include "debug/Decoder.hh"
 
-class ThreadContext;
-
 namespace X86ISA
 {
 
@@ -72,7 +70,6 @@ class Decoder
 
     static InstBytes dummy;
 
-    ThreadContext * tc;
     //The bytes to be predecoded
     MachInst fetchChunk;
     InstBytes *instBytes;
@@ -205,8 +202,7 @@ class Decoder
     static InstCacheMap instCacheMap;
 
   public:
-    Decoder(ThreadContext * _tc) :
-        tc(_tc), basePC(0), origPC(0), offset(0),
+    Decoder() : basePC(0), origPC(0), offset(0),
         outOfBytes(true), instDone(false),
         state(ResetState)
     {
@@ -259,16 +255,6 @@ class Decoder
         state = ResetState;
     }
 
-    ThreadContext * getTC()
-    {
-        return tc;
-    }
-
-    void setTC(ThreadContext * _tc)
-    {
-        tc = _tc;
-    }
-
     void process();
 
     //Use this to give data to the decoder. This should be used