Added registerfile.hh and utility.hh

--HG--
extra : convert_revision : f825fcf53e716efc62e541692cb4ed26366abc26

2 files changed, 266 insertions, 0 deletions

diff --git a/arch/alpha/registerfile.hh b/arch/alpha/registerfile.hh
new file mode 100644
index 000000000..c2fb56ec1
--- /dev/null
+++ b/arch/alpha/registerfile.hh
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2003-2005 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.
+ */
+
+#ifndef __ARCH_ALPHA_REGISTERFILE_HH__
+#define __ARCH_ALPHA_REGISTERFILE_HH__
+
+#include "arch/alpha/types.hh"
+#include "arch/alpha/constants.hh"
+#include "sim/faults.hh"
+
+class Checkpoint;
+
+namespace AlphaISA
+{
+
+    typedef IntReg IntRegFile[NumIntRegs];
+
+    typedef union {
+        uint64_t q[NumFloatRegs];	// integer qword view
+        double d[NumFloatRegs];		// double-precision floating point view
+    } FloatRegFile;
+
+    class MiscRegFile {
+      protected:
+        uint64_t	fpcr;		// floating point condition codes
+        uint64_t	uniq;		// process-unique register
+        bool		lock_flag;	// lock flag for LL/SC
+        Addr		lock_addr;	// lock address for LL/SC
+
+      public:
+        MiscReg readReg(int misc_reg);
+
+        //These functions should be removed once the simplescalar cpu model
+        //has been replaced.
+        int getInstAsid();
+        int getDataAsid();
+
+        MiscReg readRegWithEffect(int misc_reg, Fault &fault, ExecContext *xc);
+
+        Fault setReg(int misc_reg, const MiscReg &val);
+
+        Fault setRegWithEffect(int misc_reg, const MiscReg &val,
+                               ExecContext *xc);
+
+        void copyMiscRegs(ExecContext *xc);
+
+#if FULL_SYSTEM
+      protected:
+        typedef uint64_t InternalProcReg;
+
+        InternalProcReg ipr[NumInternalProcRegs]; // Internal processor regs
+
+      private:
+        InternalProcReg readIpr(int idx, Fault &fault, ExecContext *xc);
+
+        Fault setIpr(int idx, InternalProcReg val, ExecContext *xc);
+
+        void copyIprs(ExecContext *xc);
+#endif
+        friend class RegFile;
+    };
+
+    struct RegFile {
+        IntRegFile intRegFile;		// (signed) integer register file
+        FloatRegFile floatRegFile;	// floating point register file
+        MiscRegFile miscRegs;		// control register file
+        Addr pc;			// program counter
+        Addr npc;			// next-cycle program counter
+        Addr nnpc;
+
+#if FULL_SYSTEM
+        int intrflag;			// interrupt flag
+        inline int instAsid()
+        { return miscRegs.getInstAsid(); }
+        inline int dataAsid()
+        { return miscRegs.getDataAsid(); }
+#endif // FULL_SYSTEM
+
+        void serialize(std::ostream &os);
+        void unserialize(Checkpoint *cp, const std::string &section);
+    };
+
+} // namespace AlphaISA
+
+#endif
diff --git a/arch/alpha/utility.hh b/arch/alpha/utility.hh
new file mode 100644
index 000000000..92fb66c81
--- /dev/null
+++ b/arch/alpha/utility.hh
@@ -0,0 +1,156 @@
+/*
+ * Copyright (c) 2003-2005 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.
+ */
+
+#ifndef __ARCH_ALPHA_UTILITY_HH__
+#define __ARCH_ALPHA_UTILITY_HH__
+
+#include "config/full_system.hh"
+#include "arch/alpha/types.hh"
+#include "arch/alpha/constants.hh"
+#include "arch/alpha/registerfile.hh"
+#include "base/misc.hh"
+
+namespace AlphaISA
+{
+
+    static inline ExtMachInst
+    makeExtMI(MachInst inst, const uint64_t &pc) {
+#if FULL_SYSTEM
+        ExtMachInst ext_inst = inst;
+        if (pc && 0x1)
+            return ext_inst|=(static_cast<ExtMachInst>(pc & 0x1) << 32);
+        else
+            return ext_inst;
+#else
+        return ExtMachInst(inst);
+#endif
+    }
+
+    static inline bool isCallerSaveIntegerRegister(unsigned int reg) {
+        panic("register classification not implemented");
+        return (reg >= 1 && reg <= 8 || reg >= 22 && reg <= 25 || reg == 27);
+    }
+
+    static inline bool isCalleeSaveIntegerRegister(unsigned int reg) {
+        panic("register classification not implemented");
+        return (reg >= 9 && reg <= 15);
+    }
+
+    static inline bool isCallerSaveFloatRegister(unsigned int reg) {
+        panic("register classification not implemented");
+        return false;
+    }
+
+    static inline bool isCalleeSaveFloatRegister(unsigned int reg) {
+        panic("register classification not implemented");
+        return false;
+    }
+
+    static inline Addr alignAddress(const Addr &addr,
+                                         unsigned int nbytes) {
+        return (addr & ~(nbytes - 1));
+    }
+
+    // Instruction address compression hooks
+    static inline Addr realPCToFetchPC(const Addr &addr) {
+        return addr;
+    }
+
+    static inline Addr fetchPCToRealPC(const Addr &addr) {
+        return addr;
+    }
+
+    // the size of "fetched" instructions (not necessarily the size
+    // of real instructions for PISA)
+    static inline size_t fetchInstSize() {
+        return sizeof(MachInst);
+    }
+
+    static inline MachInst makeRegisterCopy(int dest, int src) {
+        panic("makeRegisterCopy not implemented");
+        return 0;
+    }
+
+    // Machine operations
+
+    void saveMachineReg(AnyReg &savereg, const RegFile &reg_file,
+                               int regnum);
+
+    void restoreMachineReg(RegFile &regs, const AnyReg &reg,
+                                  int regnum);
+
+    /**
+     * Function to insure ISA semantics about 0 registers.
+     * @param xc The execution context.
+     */
+    template <class XC>
+    void zeroRegisters(XC *xc);
+
+#if FULL_SYSTEM
+    // Alpha IPR register accessors
+    static inline bool PcPAL(Addr addr) { return addr & 0x1; }
+
+    ////////////////////////////////////////////////////////////////////////
+    //
+    //  Translation stuff
+    //
+
+    static inline Addr PteAddr(Addr a) { return (a & PteMask) << PteShift; }
+
+    // User Virtual
+    static inline bool IsUSeg(Addr a) { return USegBase <= a && a <= USegEnd; }
+
+    // Kernel Direct Mapped
+    extern inline bool IsK0Seg(Addr a) { return K0SegBase <= a && a <= K0SegEnd; }
+    static inline Addr K0Seg2Phys(Addr addr) { return addr & ~K0SegBase; }
+
+    // Kernel Virtual
+    static inline bool IsK1Seg(Addr a) { return K1SegBase <= a && a <= K1SegEnd; }
+
+    static inline Addr
+    TruncPage(Addr addr)
+    { return addr & ~(PageBytes - 1); }
+
+    static inline Addr
+    RoundPage(Addr addr)
+    { return (addr + PageBytes - 1) & ~(PageBytes - 1); }
+
+    void initCPU(ExecContext *xc, int cpuId);
+    void initIPRs(ExecContext *xc, int cpuId);
+
+    /**
+     * Function to check for and process any interrupts.
+     * @param xc The execution context.
+     */
+    template <class XC>
+    void processInterrupts(XC *xc);
+#endif
+
+} // namespace AlphaISA
+
+#endif