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authorGabe Black <gblack@eecs.umich.edu>2013-01-04 19:00:45 -0600
committerGabe Black <gblack@eecs.umich.edu>2013-01-04 19:00:45 -0600
commite17c375ddd32fbbef55a96c446a4b98b20df2ad5 (patch)
tree42e917087dc0887f0aed3d74bad6196f27ab0d0c /src/arch/x86
parentd1965af22045d2a62b1cd1bc473b836413d79b46 (diff)
downloadgem5-e17c375ddd32fbbef55a96c446a4b98b20df2ad5.tar.xz
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>
Diffstat (limited to 'src/arch/x86')
-rw-r--r--src/arch/x86/decoder.cc1
-rw-r--r--src/arch/x86/decoder.hh16
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