Make O3CPU model independent of the ISA

Use O3CPU when building instead of AlphaO3CPU.

I could use some better python magic in the cpu_models.py file!

AUTHORS:
    add middle initial
SConstruct:
    change from AlphaO3CPU to O3CPU
src/cpu/SConscript:
    edits to build O3CPU instead of AlphaO3CPU
src/cpu/cpu_models.py:
    change substitution template to use proper CPU EXEC CONTEXT For O3CPU Model...

    Actually, some Python expertise could be used here. The 'env' variable is not
    passed to this file, so I had to parse through the ARGV to find the ISA...
src/cpu/o3/base_dyn_inst.cc:
src/cpu/o3/bpred_unit.cc:
src/cpu/o3/commit.cc:
src/cpu/o3/cpu.cc:
src/cpu/o3/cpu.hh:
src/cpu/o3/decode.cc:
src/cpu/o3/fetch.cc:
src/cpu/o3/iew.cc:
src/cpu/o3/inst_queue.cc:
src/cpu/o3/lsq.cc:
src/cpu/o3/lsq_unit.cc:
src/cpu/o3/mem_dep_unit.cc:
src/cpu/o3/rename.cc:
src/cpu/o3/rob.cc:
    use isa_specific.hh
src/sim/process.cc:
    only initi NextNPC if not ALPHA
src/cpu/o3/alpha/cpu.cc:
    alphao3cpu impl
src/cpu/o3/alpha/cpu.hh:
    move AlphaTC to it's own file
src/cpu/o3/alpha/cpu_impl.hh:
    Move AlphaTC to it's own file ...
src/cpu/o3/alpha/dyn_inst.cc:
src/cpu/o3/alpha/dyn_inst.hh:
src/cpu/o3/alpha/dyn_inst_impl.hh:
    include paths
src/cpu/o3/alpha/impl.hh:
    include paths, set default MaxThreads to 2 instead of 4
src/cpu/o3/alpha/params.hh:
    set Alpha Specific Params here
src/python/m5/objects/O3CPU.py:
    add O3CPU class
src/cpu/o3/SConscript:
    include isa-specific build files
src/cpu/o3/alpha/thread_context.cc:
    NEW HOME of AlphaTC
src/cpu/o3/alpha/thread_context.hh:
    new home of AlphaTC
src/cpu/o3/isa_specific.hh:
    includes ISA specific files
src/cpu/o3/params.hh:
    base o3 params
src/cpu/o3/thread_context.hh:
    base o3 thread context
src/cpu/o3/thread_context_impl.hh:
    base o3 thead context impl

--HG--
rename : src/cpu/o3/alpha_cpu.cc => src/cpu/o3/alpha/cpu.cc
rename : src/cpu/o3/alpha_cpu.hh => src/cpu/o3/alpha/cpu.hh
rename : src/cpu/o3/alpha_cpu_builder.cc => src/cpu/o3/alpha/cpu_builder.cc
rename : src/cpu/o3/alpha_cpu_impl.hh => src/cpu/o3/alpha/cpu_impl.hh
rename : src/cpu/o3/alpha_dyn_inst.cc => src/cpu/o3/alpha/dyn_inst.cc
rename : src/cpu/o3/alpha_dyn_inst.hh => src/cpu/o3/alpha/dyn_inst.hh
rename : src/cpu/o3/alpha_dyn_inst_impl.hh => src/cpu/o3/alpha/dyn_inst_impl.hh
rename : src/cpu/o3/alpha_impl.hh => src/cpu/o3/alpha/impl.hh
rename : src/cpu/o3/alpha_params.hh => src/cpu/o3/alpha/params.hh
rename : src/python/m5/objects/AlphaO3CPU.py => src/python/m5/objects/O3CPU.py
extra : convert_revision : d377d6417452ac337bc502f28b2fde907d6b340e

1 files changed, 295 insertions, 0 deletions

diff --git a/src/cpu/o3/alpha/dyn_inst.hh b/src/cpu/o3/alpha/dyn_inst.hh
new file mode 100644
index 000000000..9dee610b6
--- /dev/null
+++ b/src/cpu/o3/alpha/dyn_inst.hh
@@ -0,0 +1,295 @@
+/*
+ * Copyright (c) 2004-2006 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: Kevin Lim
+ */
+
+#ifndef __CPU_O3_ALPHA_DYN_INST_HH__
+#define __CPU_O3_ALPHA_DYN_INST_HH__
+
+#include "arch/isa_traits.hh"
+#include "cpu/base_dyn_inst.hh"
+#include "cpu/inst_seq.hh"
+#include "cpu/o3/alpha/cpu.hh"
+#include "cpu/o3/alpha/impl.hh"
+
+class Packet;
+
+/**
+ * Mostly implementation & ISA specific AlphaDynInst. As with most
+ * other classes in the new CPU model, it is templated on the Impl to
+ * allow for passing in of all types, such as the CPU type and the ISA
+ * type. The AlphaDynInst serves as the primary interface to the CPU
+ * for instructions that are executing.
+ */
+template <class Impl>
+class AlphaDynInst : public BaseDynInst<Impl>
+{
+  public:
+    /** Typedef for the CPU. */
+    typedef typename Impl::O3CPU O3CPU;
+
+    /** Binary machine instruction type. */
+    typedef TheISA::MachInst MachInst;
+    /** Extended machine instruction type. */
+    typedef TheISA::ExtMachInst ExtMachInst;
+    /** Logical register index type. */
+    typedef TheISA::RegIndex RegIndex;
+    /** Integer register index type. */
+    typedef TheISA::IntReg   IntReg;
+    typedef TheISA::FloatReg FloatReg;
+    typedef TheISA::FloatRegBits FloatRegBits;
+    /** Misc register index type. */
+    typedef TheISA::MiscReg  MiscReg;
+
+    enum {
+        MaxInstSrcRegs = TheISA::MaxInstSrcRegs,	//< Max source regs
+        MaxInstDestRegs = TheISA::MaxInstDestRegs,	//< Max dest regs
+    };
+
+  public:
+    /** BaseDynInst constructor given a binary instruction. */
+    AlphaDynInst(ExtMachInst inst, Addr PC, Addr Pred_PC, InstSeqNum seq_num,
+                 O3CPU *cpu);
+
+    /** BaseDynInst constructor given a static inst pointer. */
+    AlphaDynInst(StaticInstPtr &_staticInst);
+
+    /** Executes the instruction.*/
+    Fault execute();
+
+    /** Initiates the access.  Only valid for memory operations. */
+    Fault initiateAcc();
+
+    /** Completes the access.  Only valid for memory operations. */
+    Fault completeAcc(Packet *pkt);
+
+  private:
+    /** Initializes variables. */
+    void initVars();
+
+  public:
+    /** Reads a miscellaneous register. */
+    MiscReg readMiscReg(int misc_reg)
+    {
+        return this->cpu->readMiscReg(misc_reg, this->threadNumber);
+    }
+
+    /** Reads a misc. register, including any side-effects the read
+     * might have as defined by the architecture.
+     */
+    MiscReg readMiscRegWithEffect(int misc_reg, Fault &fault)
+    {
+        return this->cpu->readMiscRegWithEffect(misc_reg, fault,
+                                                this->threadNumber);
+    }
+
+    /** Sets a misc. register. */
+    Fault setMiscReg(int misc_reg, const MiscReg &val)
+    {
+        this->instResult.integer = val;
+        return this->cpu->setMiscReg(misc_reg, val, this->threadNumber);
+    }
+
+    /** Sets a misc. register, including any side-effects the write
+     * might have as defined by the architecture.
+     */
+    Fault setMiscRegWithEffect(int misc_reg, const MiscReg &val)
+    {
+        return this->cpu->setMiscRegWithEffect(misc_reg, val,
+                                               this->threadNumber);
+    }
+
+#if FULL_SYSTEM
+    /** Calls hardware return from error interrupt. */
+    Fault hwrei();
+    /** Reads interrupt flag. */
+    int readIntrFlag();
+    /** Sets interrupt flag. */
+    void setIntrFlag(int val);
+    /** Checks if system is in PAL mode. */
+    bool inPalMode();
+    /** Traps to handle specified fault. */
+    void trap(Fault fault);
+    bool simPalCheck(int palFunc);
+#else
+    /** Calls a syscall. */
+    void syscall(int64_t callnum);
+#endif
+
+  private:
+    /** Physical register index of the destination registers of this
+     *  instruction.
+     */
+    PhysRegIndex _destRegIdx[MaxInstDestRegs];
+
+    /** Physical register index of the source registers of this
+     *  instruction.
+     */
+    PhysRegIndex _srcRegIdx[MaxInstSrcRegs];
+
+    /** Physical register index of the previous producers of the
+     *  architected destinations.
+     */
+    PhysRegIndex _prevDestRegIdx[MaxInstDestRegs];
+
+  public:
+
+    // The register accessor methods provide the index of the
+    // instruction's operand (e.g., 0 or 1), not the architectural
+    // register index, to simplify the implementation of register
+    // renaming.  We find the architectural register index by indexing
+    // into the instruction's own operand index table.  Note that a
+    // raw pointer to the StaticInst is provided instead of a
+    // ref-counted StaticInstPtr to redice overhead.  This is fine as
+    // long as these methods don't copy the pointer into any long-term
+    // storage (which is pretty hard to imagine they would have reason
+    // to do).
+
+    uint64_t readIntReg(const StaticInst *si, int idx)
+    {
+        return this->cpu->readIntReg(_srcRegIdx[idx]);
+    }
+
+    FloatReg readFloatReg(const StaticInst *si, int idx, int width)
+    {
+        return this->cpu->readFloatReg(_srcRegIdx[idx], width);
+    }
+
+    FloatReg readFloatReg(const StaticInst *si, int idx)
+    {
+        return this->cpu->readFloatReg(_srcRegIdx[idx]);
+    }
+
+    FloatRegBits readFloatRegBits(const StaticInst *si, int idx, int width)
+    {
+        return this->cpu->readFloatRegBits(_srcRegIdx[idx], width);
+    }
+
+    FloatRegBits readFloatRegBits(const StaticInst *si, int idx)
+    {
+        return this->cpu->readFloatRegBits(_srcRegIdx[idx]);
+    }
+
+    /** @todo: Make results into arrays so they can handle multiple dest
+     *  registers.
+     */
+    void setIntReg(const StaticInst *si, int idx, uint64_t val)
+    {
+        this->cpu->setIntReg(_destRegIdx[idx], val);
+        BaseDynInst<Impl>::setIntReg(si, idx, val);
+    }
+
+    void setFloatReg(const StaticInst *si, int idx, FloatReg val, int width)
+    {
+        this->cpu->setFloatReg(_destRegIdx[idx], val, width);
+        BaseDynInst<Impl>::setFloatReg(si, idx, val, width);
+    }
+
+    void setFloatReg(const StaticInst *si, int idx, FloatReg val)
+    {
+        this->cpu->setFloatReg(_destRegIdx[idx], val);
+        BaseDynInst<Impl>::setFloatReg(si, idx, val);
+    }
+
+    void setFloatRegBits(const StaticInst *si, int idx,
+            FloatRegBits val, int width)
+    {
+        this->cpu->setFloatRegBits(_destRegIdx[idx], val, width);
+        BaseDynInst<Impl>::setFloatRegBits(si, idx, val);
+    }
+
+    void setFloatRegBits(const StaticInst *si, int idx, FloatRegBits val)
+    {
+        this->cpu->setFloatRegBits(_destRegIdx[idx], val);
+        BaseDynInst<Impl>::setFloatRegBits(si, idx, val);
+    }
+
+    /** Returns the physical register index of the i'th destination
+     *  register.
+     */
+    PhysRegIndex renamedDestRegIdx(int idx) const
+    {
+        return _destRegIdx[idx];
+    }
+
+    /** Returns the physical register index of the i'th source register. */
+    PhysRegIndex renamedSrcRegIdx(int idx) const
+    {
+        return _srcRegIdx[idx];
+    }
+
+    /** Returns the physical register index of the previous physical register
+     *  that remapped to the same logical register index.
+     */
+    PhysRegIndex prevDestRegIdx(int idx) const
+    {
+        return _prevDestRegIdx[idx];
+    }
+
+    /** Renames a destination register to a physical register.  Also records
+     *  the previous physical register that the logical register mapped to.
+     */
+    void renameDestReg(int idx,
+                       PhysRegIndex renamed_dest,
+                       PhysRegIndex previous_rename)
+    {
+        _destRegIdx[idx] = renamed_dest;
+        _prevDestRegIdx[idx] = previous_rename;
+    }
+
+    /** Renames a source logical register to the physical register which
+     *  has/will produce that logical register's result.
+     *  @todo: add in whether or not the source register is ready.
+     */
+    void renameSrcReg(int idx, PhysRegIndex renamed_src)
+    {
+        _srcRegIdx[idx] = renamed_src;
+    }
+
+  public:
+    /** Calculates EA part of a memory instruction. Currently unused,
+     * though it may be useful in the future if we want to split
+     * memory operations into EA calculation and memory access parts.
+     */
+    Fault calcEA()
+    {
+        return this->staticInst->eaCompInst()->execute(this, this->traceData);
+    }
+
+    /** Does the memory access part of a memory instruction. Currently unused,
+     * though it may be useful in the future if we want to split
+     * memory operations into EA calculation and memory access parts.
+     */
+    Fault memAccess()
+    {
+        return this->staticInst->memAccInst()->execute(this, this->traceData);
+    }
+};
+
+#endif // __CPU_O3_ALPHA_DYN_INST_HH__
+