Reorganization/renaming of CPUExecContext. Now it is called SimpleThread in order to clear up the confusion due to the many ExecContexts. It also derives from a common ThreadState object, which holds various state common to threads across CPU models.

Following with the previous check-in, ExecContext now refers only to the interface provided to the ISA in order to access CPU state.  ThreadContext refers to the interface provided to all objects outside the CPU in order to access thread state.  SimpleThread provides all thread state and the interface to access it, and is suitable for simple execution models such as the SimpleCPU.

src/SConscript:
    Include thread state file.
src/arch/alpha/ev5.cc:
src/cpu/checker/cpu.cc:
src/cpu/checker/cpu.hh:
src/cpu/checker/thread_context.hh:
src/cpu/memtest/memtest.cc:
src/cpu/memtest/memtest.hh:
src/cpu/o3/cpu.cc:
src/cpu/ozone/cpu_impl.hh:
src/cpu/simple/atomic.cc:
src/cpu/simple/base.cc:
src/cpu/simple/base.hh:
src/cpu/simple/timing.cc:
    Rename CPUExecContext to SimpleThread.
src/cpu/base_dyn_inst.hh:
    Make thread member variables protected..
src/cpu/o3/alpha_cpu.hh:
src/cpu/o3/cpu.hh:
    Make various members of ThreadState protected.
src/cpu/o3/alpha_cpu_impl.hh:
    Push generation of TranslatingPort into the CPU itself.
    Make various members of ThreadState protected.
src/cpu/o3/thread_state.hh:
    Pull a lot of common code into the base ThreadState class.
src/cpu/ozone/thread_state.hh:
    Rename CPUExecContext to SimpleThread, move a lot of common code into base ThreadState class.
src/cpu/thread_state.hh:
    Push a lot of common code into base ThreadState class.  This goes along with renaming CPUExecContext to SimpleThread, and making it derive from ThreadState.
src/cpu/simple_thread.cc:
    Rename CPUExecContext to SimpleThread, make it derive from ThreadState.  This helps push a lot of common code/state into a single class that can be used by all CPUs.
src/cpu/simple_thread.hh:
    Rename CPUExecContext to SimpleThread, make it derive from ThreadState.
src/kern/system_events.cc:
    Rename cpu_exec_context to thread_context.
src/sim/process.hh:
    Remove unused forward declaration.

--HG--
rename : src/cpu/cpu_exec_context.cc => src/cpu/simple_thread.cc
rename : src/cpu/cpu_exec_context.hh => src/cpu/simple_thread.hh
extra : convert_revision : 2ed617aa80b64016cb9270f75352607cca032733

1 files changed, 2 insertions, 29 deletions

diff --git a/src/cpu/o3/thread_state.hh b/src/cpu/o3/thread_state.hh
index 7322161e6..38d37ec96 100644
--- a/src/cpu/o3/thread_state.hh
+++ b/src/cpu/o3/thread_state.hh
@@ -58,14 +58,6 @@ struct O3ThreadState : public ThreadState {
     typedef ThreadContext::Status Status;
     typedef typename Impl::FullCPU FullCPU;
 
-    /** Current status of the thread. */
-    Status _status;
-
-    /** Current instruction the thread is committing.  Only set and
-     * used for DTB faults currently.
-     */
-    TheISA::MachInst inst;
-
   private:
     /** Pointer to the CPU. */
     FullCPU *cpu;
@@ -81,8 +73,8 @@ struct O3ThreadState : public ThreadState {
     bool trapPending;
 
 #if FULL_SYSTEM
-    O3ThreadState(FullCPU *_cpu, int _thread_num, FunctionalMemory *_mem)
-        : ThreadState(-1, _thread_num, _mem),
+    O3ThreadState(FullCPU *_cpu, int _thread_num, )
+        : ThreadState(-1, _thread_num),
           inSyscall(0), trapPending(0)
     { }
 #else
@@ -99,25 +91,6 @@ struct O3ThreadState : public ThreadState {
     /** Returns a pointer to the TC of this thread. */
     ThreadContext *getTC() { return tc; }
 
-    /** Returns the status of this thread. */
-    Status status() const { return _status; }
-
-    /** Sets the status of this thread. */
-    void setStatus(Status new_status) { _status = new_status; }
-
-    /** Sets the current instruction being committed. */
-    void setInst(TheISA::MachInst _inst) { inst = _inst; }
-
-    /** Reads the number of instructions functionally executed and
-     * committed.
-     */
-    Counter readFuncExeInst() { return funcExeInst; }
-
-    /** Sets the total number of instructions functionally executed
-     * and committed.
-     */
-    void setFuncExeInst(Counter new_val) { funcExeInst = new_val; }
-
 #if !FULL_SYSTEM
     /** Handles the syscall. */
     void syscall(int64_t callnum) { process->syscall(callnum, tc); }