Registers: Eliminate the ISA defined floating point register file.

6 files changed, 8 insertions, 307 deletions

diff --git a/src/arch/x86/SConscript b/src/arch/x86/SConscript
index 96967ea24..157a703e2 100644
--- a/src/arch/x86/SConscript
+++ b/src/arch/x86/SConscript
@@ -88,7 +88,6 @@ Import('*')
 if env['TARGET_ISA'] == 'x86':
     Source('cpuid.cc')
     Source('emulenv.cc')
-    Source('floatregfile.cc')
     Source('faults.cc')
     Source('insts/microfpop.cc')
     Source('insts/microldstop.cc')
diff --git a/src/arch/x86/floatregfile.cc b/src/arch/x86/floatregfile.cc
deleted file mode 100644
index bbdf1d5c1..000000000
--- a/src/arch/x86/floatregfile.cc
+++ /dev/null
@@ -1,141 +0,0 @@
-/*
- * Copyright (c) 2003-2007 The Regents of The University of Michigan
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met: redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer;
- * redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution;
- * neither the name of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Authors: Gabe Black
- */
-
-/*
- * Copyright (c) 2007 The Hewlett-Packard Development Company
- * All rights reserved.
- *
- * Redistribution and use of this software in source and binary forms,
- * with or without modification, are permitted provided that the
- * following conditions are met:
- *
- * The software must be used only for Non-Commercial Use which means any
- * use which is NOT directed to receiving any direct monetary
- * compensation for, or commercial advantage from such use.  Illustrative
- * examples of non-commercial use are academic research, personal study,
- * teaching, education and corporate research & development.
- * Illustrative examples of commercial use are distributing products for
- * commercial advantage and providing services using the software for
- * commercial advantage.
- *
- * If you wish to use this software or functionality therein that may be
- * covered by patents for commercial use, please contact:
- *     Director of Intellectual Property Licensing
- *     Office of Strategy and Technology
- *     Hewlett-Packard Company
- *     1501 Page Mill Road
- *     Palo Alto, California  94304
- *
- * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.  Redistributions
- * in binary form must reproduce the above copyright notice, this list of
- * conditions and the following disclaimer in the documentation and/or
- * other materials provided with the distribution.  Neither the name of
- * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.  No right of
- * sublicense is granted herewith.  Derivatives of the software and
- * output created using the software may be prepared, but only for
- * Non-Commercial Uses.  Derivatives of the software may be shared with
- * others provided: (i) the others agree to abide by the list of
- * conditions herein which includes the Non-Commercial Use restrictions;
- * and (ii) such Derivatives of the software include the above copyright
- * notice to acknowledge the contribution from this software where
- * applicable, this list of conditions and the disclaimer below.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Authors: Gabe Black
- */
-
-#include "arch/x86/floatregfile.hh"
-#include "base/trace.hh"
-#include "sim/serialize.hh"
-
-#include <string.h>
-
-using namespace X86ISA;
-using namespace std;
-
-class Checkpoint;
-
-void FloatRegFile::clear()
-{
-    memset(q, 0, sizeof(FloatReg) * NumFloatRegs);
-}
-
-FloatReg FloatRegFile::readReg(int floatReg)
-{
-    FloatReg reg = d[floatReg];
-    DPRINTF(FloatRegs, "Reading %f from register %d.\n", reg, floatReg);
-    return reg;
-}
-
-FloatRegBits FloatRegFile::readRegBits(int floatReg)
-{
-    FloatRegBits reg = q[floatReg];
-    DPRINTF(FloatRegs, "Reading %#x from register %d.\n", reg, floatReg);
-    return reg;
-}
-
-Fault FloatRegFile::setReg(int floatReg, const FloatReg &val)
-{
-    DPRINTF(FloatRegs, "Writing %f to register %d.\n", val, floatReg);
-    d[floatReg] = val;
-    return NoFault;
-}
-
-Fault FloatRegFile::setRegBits(int floatReg, const FloatRegBits &val)
-{
-    DPRINTF(FloatRegs, "Writing bits %#x to register %d.\n", val, floatReg);
-    q[floatReg] = val;
-    return NoFault;
-}
-
-void FloatRegFile::serialize(std::ostream &os)
-{
-    SERIALIZE_ARRAY(q, NumFloatRegs);
-}
-
-void FloatRegFile::unserialize(Checkpoint *cp, const std::string &section)
-{
-    UNSERIALIZE_ARRAY(q, NumFloatRegs);
-}
-
diff --git a/src/arch/x86/floatregfile.hh b/src/arch/x86/floatregfile.hh
deleted file mode 100644
index aeed5bfa0..000000000
--- a/src/arch/x86/floatregfile.hh
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * Copyright (c) 2003-2007 The Regents of The University of Michigan
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met: redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer;
- * redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution;
- * neither the name of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Authors: Gabe Black
- */
-
-/*
- * Copyright (c) 2007 The Hewlett-Packard Development Company
- * All rights reserved.
- *
- * Redistribution and use of this software in source and binary forms,
- * with or without modification, are permitted provided that the
- * following conditions are met:
- *
- * The software must be used only for Non-Commercial Use which means any
- * use which is NOT directed to receiving any direct monetary
- * compensation for, or commercial advantage from such use.  Illustrative
- * examples of non-commercial use are academic research, personal study,
- * teaching, education and corporate research & development.
- * Illustrative examples of commercial use are distributing products for
- * commercial advantage and providing services using the software for
- * commercial advantage.
- *
- * If you wish to use this software or functionality therein that may be
- * covered by patents for commercial use, please contact:
- *     Director of Intellectual Property Licensing
- *     Office of Strategy and Technology
- *     Hewlett-Packard Company
- *     1501 Page Mill Road
- *     Palo Alto, California  94304
- *
- * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.  Redistributions
- * in binary form must reproduce the above copyright notice, this list of
- * conditions and the following disclaimer in the documentation and/or
- * other materials provided with the distribution.  Neither the name of
- * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.  No right of
- * sublicense is granted herewith.  Derivatives of the software and
- * output created using the software may be prepared, but only for
- * Non-Commercial Uses.  Derivatives of the software may be shared with
- * others provided: (i) the others agree to abide by the list of
- * conditions herein which includes the Non-Commercial Use restrictions;
- * and (ii) such Derivatives of the software include the above copyright
- * notice to acknowledge the contribution from this software where
- * applicable, this list of conditions and the disclaimer below.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Authors: Gabe Black
- */
-
-#ifndef __ARCH_X86_FLOATREGFILE_HH__
-#define __ARCH_X86_FLOATREGFILE_HH__
-
-#include <string>
-
-#include "arch/x86/faults.hh"
-#include "arch/x86/types.hh"
-#include "arch/x86/x86_traits.hh"
-
-class Checkpoint;
-
-namespace X86ISA
-{
-    //Each 128 bit xmm register is broken into two effective 64 bit registers.
-    const int NumFloatRegs =
-        NumMMXRegs + 2 * NumXMMRegs + NumMicroFpRegs;
-    const int NumFloatArchRegs = NumFloatRegs + 8;
-
-    class FloatRegFile
-    {
-      protected:
-        union
-        {
-            uint64_t q[NumFloatRegs];
-            double d[NumFloatRegs];
-        };
-
-      public:
-        void clear();
-
-        FloatReg readReg(int floatReg);
-
-        FloatRegBits readRegBits(int floatReg);
-
-        Fault setReg(int floatReg, const FloatReg &val);
-
-        Fault setRegBits(int floatReg, const FloatRegBits &val);
-
-        void serialize(std::ostream &os);
-
-        void unserialize(Checkpoint *cp, const std::string &section);
-    };
-}
-
-#endif //__ARCH_X86_FLOATREGFILE_HH__
diff --git a/src/arch/x86/regfile.cc b/src/arch/x86/regfile.cc
index 17b7a12d1..70680703c 100644
--- a/src/arch/x86/regfile.cc
+++ b/src/arch/x86/regfile.cc
@@ -129,30 +129,9 @@ void RegFile::setNextNPC(Addr val)
 
 void RegFile::clear()
 {
-    floatRegFile.clear();
     intRegFile.clear();
 }
 
-FloatReg RegFile::readFloatReg(int floatReg)
-{
-    return floatRegFile.readReg(floatReg);
-}
-
-FloatRegBits RegFile::readFloatRegBits(int floatReg)
-{
-    return floatRegFile.readRegBits(floatReg);
-}
-
-void RegFile::setFloatReg(int floatReg, const FloatReg &val)
-{
-    floatRegFile.setReg(floatReg, val);
-}
-
-void RegFile::setFloatRegBits(int floatReg, const FloatRegBits &val)
-{
-    floatRegFile.setRegBits(floatReg, val);
-}
-
 IntReg RegFile::readIntReg(int intReg)
 {
     return intRegFile.readReg(intReg);
@@ -193,12 +172,10 @@ void
 RegFile::serialize(EventManager *em, std::ostream &os)
 {
     intRegFile.serialize(os);
-    floatRegFile.serialize(os);
 }
 
 void
 RegFile::unserialize(EventManager *em, Checkpoint *cp, const string &section)
 {
     intRegFile.unserialize(cp, section);
-    floatRegFile.unserialize(cp, section);
 }
diff --git a/src/arch/x86/regfile.hh b/src/arch/x86/regfile.hh
index e9e96c4f8..d1dbe3823 100644
--- a/src/arch/x86/regfile.hh
+++ b/src/arch/x86/regfile.hh
@@ -60,21 +60,27 @@
 
 #include <string>
 
-#include "arch/x86/floatregfile.hh"
 #include "arch/x86/intregfile.hh"
 #include "arch/x86/miscregs.hh"
 #include "arch/x86/isa_traits.hh"
+#include "arch/x86/x86_traits.hh"
 #include "arch/x86/types.hh"
 #include "base/types.hh"
 
 class Checkpoint;
 class EventManager;
+class ThreadContext;
 
 namespace X86ISA
 {
     const int NumMiscArchRegs = NUM_MISCREGS;
     const int NumMiscRegs = NUM_MISCREGS;
 
+    //Each 128 bit xmm register is broken into two effective 64 bit registers.
+    const int NumFloatRegs =
+        NumMMXRegs + 2 * NumXMMRegs + NumMicroFpRegs;
+    const int NumFloatArchRegs = NumFloatRegs + 8;
+
     class RegFile
     {
       protected:
@@ -93,20 +99,11 @@ namespace X86ISA
 
       protected:
         IntRegFile intRegFile; // integer register file
-        FloatRegFile floatRegFile; // floating point register file
 
       public:
 
         void clear();
 
-        FloatReg readFloatReg(int floatReg);
-
-        FloatRegBits readFloatRegBits(int floatReg);
-
-        void setFloatReg(int floatReg, const FloatReg &val);
-
-        void setFloatRegBits(int floatReg, const FloatRegBits &val);
-
         IntReg readIntReg(int intReg);
 
         void setIntReg(int intReg, const IntReg &val);
diff --git a/src/arch/x86/tlb.cc b/src/arch/x86/tlb.cc
index c67c193ea..418f6ffb2 100644
--- a/src/arch/x86/tlb.cc
+++ b/src/arch/x86/tlb.cc
@@ -59,6 +59,7 @@
 
 #include "config/full_system.hh"
 
+#include "arch/x86/faults.hh"
 #include "arch/x86/insts/microldstop.hh"
 #include "arch/x86/miscregs.hh"
 #include "arch/x86/pagetable.hh"