From 77e40756b723e6cf18462bbb15653792b5c90346 Mon Sep 17 00:00:00 2001
From: Kevin Lim <ktlim@umich.edu>
Date: Wed, 8 Mar 2006 15:10:47 -0500
Subject: [PATCH] Include ability to copy all misc regs.

arch/alpha/ev5.cc:
    Include function for the MiscRegFile to copy all of the Iprs from an ExecContext.
arch/alpha/isa_traits.hh:
    Include functions to copy MiscRegs from an ExecContext.
cpu/cpu_exec_context.cc:
    Be sure to copy all of the misc regs when copying all architectural state.

--HG--
extra : convert_revision : cb948b5ff141ea0f739a1016f98236bd2a512f76
---
 arch/alpha/ev5.cc        |  8 ++++++++
 arch/alpha/isa_traits.hh |  4 ++++
 cpu/cpu_exec_context.cc  | 10 +---------
 3 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/arch/alpha/ev5.cc b/arch/alpha/ev5.cc
index ccdcf7502..019e83dd4 100644
--- a/arch/alpha/ev5.cc
+++ b/arch/alpha/ev5.cc
@@ -541,6 +541,14 @@ AlphaISA::MiscRegFile::setIpr(int idx, uint64_t val, ExecContext *xc)
     return NoFault;
 }
 
+void
+AlphaISA::MiscRegFile::copyIprs(ExecContext *xc)
+{
+    for (int i = IPR_Base_DepTag; i < NumInternalProcRegs; ++i) {
+        ipr[i] = xc->readMiscReg(i);
+    }
+}
+
 /**
  * Check for special simulator handling of specific PAL calls.
  * If return value is false, actual PAL call will be suppressed.
diff --git a/arch/alpha/isa_traits.hh b/arch/alpha/isa_traits.hh
index b719b12b0..8e1f21a35 100644
--- a/arch/alpha/isa_traits.hh
+++ b/arch/alpha/isa_traits.hh
@@ -169,6 +169,8 @@ extern const int reg_redir[NumIntRegs];
         Fault setRegWithEffect(int misc_reg, const MiscReg &val,
                                ExecContext *xc);
 
+        void copyMiscRegs(ExecContext *xc);
+
 #if FULL_SYSTEM
       protected:
         InternalProcReg ipr[NumInternalProcRegs]; // Internal processor regs
@@ -177,6 +179,8 @@ extern const int reg_redir[NumIntRegs];
         MiscReg readIpr(int idx, Fault &fault, ExecContext *xc);
 
         Fault setIpr(int idx, uint64_t val, ExecContext *xc);
+
+        void copyIprs(ExecContext *xc);
 #endif
         friend class RegFile;
     };
diff --git a/cpu/cpu_exec_context.cc b/cpu/cpu_exec_context.cc
index 683d07787..b7238e73a 100644
--- a/cpu/cpu_exec_context.cc
+++ b/cpu/cpu_exec_context.cc
@@ -289,15 +289,7 @@ CPUExecContext::copyArchRegs(ExecContext *xc)
     }
 
     // Copy misc. registers
-    setMiscReg(AlphaISA::Fpcr_DepTag, xc->readMiscReg(AlphaISA::Fpcr_DepTag));
-    setMiscReg(AlphaISA::Uniq_DepTag, xc->readMiscReg(AlphaISA::Uniq_DepTag));
-    setMiscReg(AlphaISA::Lock_Flag_DepTag,
-               xc->readMiscReg(AlphaISA::Lock_Flag_DepTag));
-    setMiscReg(AlphaISA::Lock_Addr_DepTag,
-               xc->readMiscReg(AlphaISA::Lock_Addr_DepTag));
-
-    // Also need to copy all the IPRs.  Probably should just have a copy misc
-    // regs function defined on the misc regs.
+    regs.miscRegs.copyMiscRegs(xc);
 
     // Lastly copy PC/NPC
     setPC(xc->readPC());