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Renaming alpha files and changing some MIPS stuff to be more like Alpha version

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SConscript:
    changed the alpha_memory.hh to memory.hh in SConscript
arch/isa_parser.py:
    temporarily comment out o3 model
arch/mips/isa/base.isa:
arch/mips/isa_traits.cc:
arch/mips/isa_traits.hh:
    Fix Up Base Class to mirror how Alpha generates StaticInsts
arch/mips/faults.cc:
    MIPS fault.cc file
arch/mips/faults.hh:
    MIPS fault.hh file

--HG--
rename : arch/alpha/alpha_linux_process.cc => arch/alpha/linux_process.cc
rename : arch/alpha/alpha_linux_process.hh => arch/alpha/linux_process.hh
rename : arch/alpha/alpha_memory.cc => arch/alpha/memory.cc
rename : arch/alpha/alpha_memory.hh => arch/alpha/memory.hh
rename : arch/alpha/alpha_tru64_process.cc => arch/alpha/tru64_process.cc
rename : arch/alpha/alpha_tru64_process.hh => arch/alpha/tru64_process.hh
extra : convert_revision : f92d6e765ca96a8b952aef79ed119fa29464563b
This commit is contained in:
Korey Sewell 2006-02-21 22:02:05 -05:00
parent 3f7979c99d
commit a4799a89de
13 changed files with 648 additions and 480 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
SConscript
View file

@ -344,7 +344,7 @@ syscall_emulation_sources = Split('''
targetarch_files = Split(''' targetarch_files = Split('''
alpha_linux_process.hh alpha_linux_process.hh
alpha_memory.hh memory.hh
alpha_tru64_process.hh alpha_tru64_process.hh
aout_machdep.h aout_machdep.h
arguments.hh arguments.hh

0
arch/alpha/alpha_linux_process.cc → arch/alpha/linux_process.cc
View file

0
arch/alpha/alpha_linux_process.hh → arch/alpha/linux_process.hh
View file

0
arch/alpha/alpha_memory.cc → arch/alpha/memory.cc
View file

0
arch/alpha/alpha_memory.hh → arch/alpha/memory.hh
View file

0
arch/alpha/alpha_tru64_process.cc → arch/alpha/tru64_process.cc
View file

0
arch/alpha/alpha_tru64_process.hh → arch/alpha/tru64_process.hh
View file

7
arch/isa_parser.py
View file

@ -745,9 +745,10 @@ CpuModel('FastCPU', 'fast_cpu_exec.cc',
CpuModel('FullCPU', 'full_cpu_exec.cc', CpuModel('FullCPU', 'full_cpu_exec.cc',
'#include "encumbered/cpu/full/dyn_inst.hh"', '#include "encumbered/cpu/full/dyn_inst.hh"',
{ 'CPU_exec_context': 'DynInst' }) { 'CPU_exec_context': 'DynInst' })
CpuModel('AlphaFullCPU', 'alpha_o3_exec.cc',
'#include "cpu/o3/alpha_dyn_inst.hh"', #CpuModel('AlphaFullCPU', 'alpha_o3_exec.cc',
{ 'CPU_exec_context': 'AlphaDynInst<AlphaSimpleImpl>' }) # '#include "cpu/o3/alpha_dyn_inst.hh"',
# { 'CPU_exec_context': 'AlphaDynInst<AlphaSimpleImpl>' })
# Expand template with CPU-specific references into a dictionary with # Expand template with CPU-specific references into a dictionary with
# an entry for each CPU model name. The entry key is the model name # an entry for each CPU model name. The entry key is the model name

80
arch/mips/faults.cc Normal file
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@ -0,0 +1,80 @@
/*
* 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.
*/
#include "arch/alpha/faults.hh"
ResetFaultType * const ResetFault =
new ResetFaultType("reset", 1, 0x0001);
ArithmeticFaultType * const ArithmeticFault =
new ArithmeticFaultType("arith", 3, 0x0501);
InterruptFaultType * const InterruptFault =
new InterruptFaultType("interrupt", 4, 0x0101);
NDtbMissFaultType * const NDtbMissFault =
new NDtbMissFaultType("dtb_miss_single", 5, 0x0201);
PDtbMissFaultType * const PDtbMissFault =
new PDtbMissFaultType("dtb_miss_double", 6, 0x0281);
DtbPageFaultType * const DtbPageFault =
new DtbPageFaultType("dfault", 8, 0x0381);
DtbAcvFaultType * const DtbAcvFault =
new DtbAcvFaultType("dfault", 9, 0x0381);
ItbMissFaultType * const ItbMissFault =
new ItbMissFaultType("itbmiss", 10, 0x0181);
ItbPageFaultType * const ItbPageFault =
new ItbPageFaultType("itbmiss", 11, 0x0181);
ItbAcvFaultType * const ItbAcvFault =
new ItbAcvFaultType("iaccvio", 12, 0x0081);
UnimplementedOpcodeFaultType * const UnimplementedOpcodeFault =
new UnimplementedOpcodeFaultType("opdec", 13, 0x0481);
FloatEnableFaultType * const FloatEnableFault =
new FloatEnableFaultType("fen", 14, 0x0581);
PalFaultType * const PalFault =
new PalFaultType("pal", 15, 0x2001);
IntegerOverflowFaultType * const IntegerOverflowFault =
new IntegerOverflowFaultType("intover", 16, 0x0501);
Fault ** ListOfFaults[] = {
(Fault **)&NoFault,
(Fault **)&ResetFault,
(Fault **)&MachineCheckFault,
(Fault **)&ArithmeticFault,
(Fault **)&InterruptFault,
(Fault **)&NDtbMissFault,
(Fault **)&PDtbMissFault,
(Fault **)&AlignmentFault,
(Fault **)&DtbPageFault,
(Fault **)&DtbAcvFault,
(Fault **)&ItbMissFault,
(Fault **)&ItbPageFault,
(Fault **)&ItbAcvFault,
(Fault **)&UnimplementedOpcodeFault,
(Fault **)&FloatEnableFault,
(Fault **)&PalFault,
(Fault **)&IntegerOverflowFault,
};
int NumFaults = sizeof(ListOfFaults) / sizeof(Fault **);

163
arch/mips/faults.hh Normal file
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@ -0,0 +1,163 @@
/*
* 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 __ALPHA_FAULTS_HH__
#define __ALPHA_FAULTS_HH__
#include "sim/faults.hh"
#include "arch/isa_traits.hh" //For the Addr type
class Garbage;
class Fault;
class AlphaFault : public Fault
{
public:
AlphaFault(char * newName, int newId, Addr newVect)
: Fault(newName, newId), vect(newVect)
{;}
Addr vect;
};
extern class ResetFaultType : public AlphaFault
{
public:
ResetFaultType(char * newName, int newId, Addr newVect)
: AlphaFault(newName, newId, newVect)
{;}
} * const ResetFault;
extern class ArithmeticFaultType : public AlphaFault
{
public:
ArithmeticFaultType(char * newName, int newId, Addr newVect)
: AlphaFault(newName, newId, newVect)
{;}
} * const ArithmeticFault;
extern class InterruptFaultType : public AlphaFault
{
public:
InterruptFaultType(char * newName, int newId, Addr newVect)
: AlphaFault(newName, newId, newVect)
{;}
} * const InterruptFault;
extern class NDtbMissFaultType : public AlphaFault
{
public:
NDtbMissFaultType(char * newName, int newId, Addr newVect)
: AlphaFault(newName, newId, newVect)
{;}
} * const NDtbMissFault;
extern class PDtbMissFaultType : public AlphaFault
{
public:
PDtbMissFaultType(char * newName, int newId, Addr newVect)
: AlphaFault(newName, newId, newVect)
{;}
} * const PDtbMissFault;
extern class DtbPageFaultType : public AlphaFault
{
public:
DtbPageFaultType(char * newName, int newId, Addr newVect)
: AlphaFault(newName, newId, newVect)
{;}
} * const DtbPageFault;
extern class DtbAcvFaultType : public AlphaFault
{
public:
DtbAcvFaultType(char * newName, int newId, Addr newVect)
: AlphaFault(newName, newId, newVect)
{;}
} * const DtbAcvFault;
extern class ItbMissFaultType : public AlphaFault
{
public:
ItbMissFaultType(char * newName, int newId, Addr newVect)
: AlphaFault(newName, newId, newVect)
{;}
} * const ItbMissFault;
extern class ItbPageFaultType : public AlphaFault
{
public:
ItbPageFaultType(char * newName, int newId, Addr newVect)
: AlphaFault(newName, newId, newVect)
{;}
} * const ItbPageFault;
extern class ItbAcvFaultType : public AlphaFault
{
public:
ItbAcvFaultType(char * newName, int newId, Addr newVect)
: AlphaFault(newName, newId, newVect)
{;}
} * const ItbAcvFault;
extern class UnimplementedOpcodeFaultType : public AlphaFault
{
public:
UnimplementedOpcodeFaultType(char * newName, int newId, Addr newVect)
: AlphaFault(newName, newId, newVect)
{;}
} * const UnimplementedOpcodeFault;
extern class FloatEnableFaultType : public AlphaFault
{
public:
FloatEnableFaultType(char * newName, int newId, Addr newVect)
: AlphaFault(newName, newId, newVect)
{;}
} * const FloatEnableFault;
extern class PalFaultType : public AlphaFault
{
public:
PalFaultType(char * newName, int newId, Addr newVect)
: AlphaFault(newName, newId, newVect)
{;}
} * const PalFault;
extern class IntegerOverflowFaultType : public AlphaFault
{
public:
IntegerOverflowFaultType(char * newName, int newId, Addr newVect)
: AlphaFault(newName, newId, newVect)
{;}
} * const IntegerOverflowFault;
extern Fault ** ListOfFaults[];
extern int NumFaults;
#endif // __FAULTS_HH__

30
arch/mips/isa/base.isa
View file

@ -10,16 +10,30 @@ output header {{
/** /**
* Base class for all MIPS static instructions. * Base class for all MIPS static instructions.
*/ */
class MipsStaticInst : public StaticInst<MIPSISA> class MipsStaticInst : public StaticInst
{ {
protected: protected:
// Constructor. /// Make MipsISA register dependence tags directly visible in
/// this class and derived classes. Maybe these should really
/// live here and not in the MipsISA namespace.
enum DependenceTags {
FP_Base_DepTag = MipsISA::FP_Base_DepTag,
Fpcr_DepTag = MipsISA::Fpcr_DepTag,
Uniq_DepTag = MipsISA::Uniq_DepTag,
IPR_Base_DepTag = MipsISA::IPR_Base_DepTag
};
// Constructor
MipsStaticInst(const char *mnem, MachInst _machInst, OpClass __opClass) MipsStaticInst(const char *mnem, MachInst _machInst, OpClass __opClass)
: StaticInst<MIPSISA>(mnem, _machInst, __opClass) : StaticInst(mnem, _machInst, __opClass)
{ {
} }
/// Print a register name for disassembly given the unique
/// dependence tag number (FP or int).
void printReg(std::ostream &os, int reg) const;
std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
}; };
@ -28,6 +42,16 @@ output header {{
//Ouputs to decoder.cc //Ouputs to decoder.cc
output decoder {{ output decoder {{
void MipsStaticInst::printReg(std::ostream &os, int reg) const
{
if (reg < FP_Base_DepTag) {
ccprintf(os, "r%d", reg);
}
else {
ccprintf(os, "f%d", reg - FP_Base_DepTag);
}
}
std::string MipsStaticInst::generateDisassembly(Addr pc, const SymbolTable *symtab) const std::string MipsStaticInst::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{ {
std::stringstream ss; std::stringstream ss;

109
arch/mips/isa_traits.cc
View file

@ -27,32 +27,121 @@
*/ */
#include "arch/mips/isa_traits.hh" #include "arch/mips/isa_traits.hh"
#include "config/full_system.hh"
#include "cpu/static_inst.hh" #include "cpu/static_inst.hh"
#include "sim/serialize.hh" #include "sim/serialize.hh"
// Alpha UNOP (ldq_u r31,0(r0)) using namespace MipsISA;
// @todo: fix to MIPS specific
const Addr MipsISA::PageShift = 13;
const Addr MipsISA::PageBytes = ULL(1) << PageShift;
const Addr MipsISA::PageMask = ~(PageBytes - 1);
const Addr MipsISA::PageOffset = PageBytes - 1;
#if FULL_SYSTEM
////////////////////////////////////////////////////////////////////////
//
// Translation stuff
//
const Addr MipsISA::PteShift = 3;
const Addr MipsISA::NPtePageShift = PageShift - PteShift;
const Addr MipsISA::NPtePage = ULL(1) << NPtePageShift;
const Addr MipsISA::PteMask = NPtePage - 1;
// User Virtual
const Addr MipsISA::USegBase = ULL(0x0);
const Addr MipsISA::USegEnd = ULL(0x000003ffffffffff);
// Kernel Direct Mapped
const Addr MipsISA::K0SegBase = ULL(0xfffffc0000000000);
const Addr MipsISA::K0SegEnd = ULL(0xfffffdffffffffff);
// Kernel Virtual
const Addr MipsISA::K1SegBase = ULL(0xfffffe0000000000);
const Addr MipsISA::K1SegEnd = ULL(0xffffffffffffffff);
#endif
// Mips UNOP (ldq_u r31,0(r0))
const MachInst MipsISA::NoopMachInst = 0x2ffe0000; const MachInst MipsISA::NoopMachInst = 0x2ffe0000;
static inline Addr
TruncPage(Addr addr)
{ return addr & ~(MipsISA::PageBytes - 1); }
static inline Addr
RoundPage(Addr addr)
{ return (addr + MipsISA::PageBytes - 1) & ~(MipsISA::PageBytes - 1); }
void void
MipsISA::RegFile::serialize(std::ostream &os) RegFile::serialize(std::ostream &os)
{ {
intRegFile.serialize(os); SERIALIZE_ARRAY(intRegFile, NumIntRegs);
floatRegFile.serialize(os); SERIALIZE_ARRAY(floatRegFile.q, NumFloatRegs);
miscRegs.serialize(os); SERIALIZE_SCALAR(miscRegs.fpcr);
SERIALIZE_SCALAR(miscRegs.uniq);
SERIALIZE_SCALAR(miscRegs.lock_flag);
SERIALIZE_SCALAR(miscRegs.lock_addr);
SERIALIZE_SCALAR(pc); SERIALIZE_SCALAR(pc);
SERIALIZE_SCALAR(npc); SERIALIZE_SCALAR(npc);
#if FULL_SYSTEM
SERIALIZE_ARRAY(palregs, NumIntRegs);
SERIALIZE_ARRAY(ipr, NumInternalProcRegs);
SERIALIZE_SCALAR(intrflag);
SERIALIZE_SCALAR(pal_shadow);
#endif
} }
void void
MipsISA::RegFile::unserialize(Checkpoint *cp, const std::string &section) RegFile::unserialize(Checkpoint *cp, const std::string &section)
{ {
intRegFile.unserialize(cp, section); UNSERIALIZE_ARRAY(intRegFile, NumIntRegs);
floatRegFile.unserialize(cp, section); UNSERIALIZE_ARRAY(floatRegFile.q, NumFloatRegs);
miscRegs.unserialize(cp, section); UNSERIALIZE_SCALAR(miscRegs.fpcr);
UNSERIALIZE_SCALAR(miscRegs.uniq);
UNSERIALIZE_SCALAR(miscRegs.lock_flag);
UNSERIALIZE_SCALAR(miscRegs.lock_addr);
UNSERIALIZE_SCALAR(pc); UNSERIALIZE_SCALAR(pc);
UNSERIALIZE_SCALAR(npc); UNSERIALIZE_SCALAR(npc);
#if FULL_SYSTEM
UNSERIALIZE_ARRAY(palregs, NumIntRegs);
UNSERIALIZE_ARRAY(ipr, NumInternalProcRegs);
UNSERIALIZE_SCALAR(intrflag);
UNSERIALIZE_SCALAR(pal_shadow);
#endif
}
#if FULL_SYSTEM
void
PTE::serialize(std::ostream &os)
{
SERIALIZE_SCALAR(tag);
SERIALIZE_SCALAR(ppn);
SERIALIZE_SCALAR(xre);
SERIALIZE_SCALAR(xwe);
SERIALIZE_SCALAR(asn);
SERIALIZE_SCALAR(asma);
SERIALIZE_SCALAR(fonr);
SERIALIZE_SCALAR(fonw);
SERIALIZE_SCALAR(valid);
}
void
PTE::unserialize(Checkpoint *cp, const std::string &section)
{
UNSERIALIZE_SCALAR(tag);
UNSERIALIZE_SCALAR(ppn);
UNSERIALIZE_SCALAR(xre);
UNSERIALIZE_SCALAR(xwe);
UNSERIALIZE_SCALAR(asn);
UNSERIALIZE_SCALAR(asma);
UNSERIALIZE_SCALAR(fonr);
UNSERIALIZE_SCALAR(fonw);
UNSERIALIZE_SCALAR(valid);
} }
#endif //FULL_SYSTEM #endif //FULL_SYSTEM

587
arch/mips/isa_traits.hh
View file

@ -29,13 +29,14 @@
#ifndef __ARCH_MIPS_ISA_TRAITS_HH__ #ifndef __ARCH_MIPS_ISA_TRAITS_HH__
#define __ARCH_MIPS_ISA_TRAITS_HH__ #define __ARCH_MIPS_ISA_TRAITS_HH__
//This makes sure the big endian versions of certain functions are used.
namespace LittleEndianGuest {} namespace LittleEndianGuest {}
using namespace LittleEndianGuest using namespace LittleEndianGuest;
#include "arch/mips/faults.hh" //#include "arch/mips/faults.hh"
#include "base/misc.hh" #include "base/misc.hh"
#include "config/full_system.hh"
#include "sim/host.hh" #include "sim/host.hh"
#include "sim/faults.hh"
class FastCPU; class FastCPU;
class FullCPU; class FullCPU;
@ -43,27 +44,25 @@ class Checkpoint;
#define TARGET_MIPS #define TARGET_MIPS
template <class ISA> class StaticInst; class StaticInst;
template <class ISA> class StaticInstPtr; class StaticInstPtr;
//namespace MIPS34K namespace MIPS34K {
//{ int DTB_ASN_ASN(uint64_t reg);
// int DTB_ASN_ASN(uint64_t reg); int ITB_ASN_ASN(uint64_t reg);
// int ITB_ASN_ASN(uint64_t reg); }
//}
class MipsISA namespace MipsISA
{ {
public:
typedef uint32_t MachInst; typedef uint32_t MachInst;
typedef uint64_t Addr; // typedef uint64_t Addr;
typedef uint8_t RegIndex; typedef uint8_t RegIndex;
enum enum {
{
MemoryEnd = 0xffffffffffffffffULL, MemoryEnd = 0xffffffffffffffffULL,
NumIntRegs = 32,
NumFloatRegs = 32, NumFloatRegs = 32,
NumMiscRegs = 32, NumMiscRegs = 32,
@ -72,424 +71,233 @@ class MipsISA
MaxInstSrcRegs = 3, MaxInstSrcRegs = 3,
MaxInstDestRegs = 2, MaxInstDestRegs = 2,
// Maximum trap level
MaxTL = 4
// semantically meaningful register indices // semantically meaningful register indices
ZeroReg = 0, // architecturally meaningful ZeroReg = 31, // architecturally meaningful
// the rest of these depend on the ABI // the rest of these depend on the ABI
} StackPointerReg = 30,
GlobalPointerReg = 29,
ProcedureValueReg = 27,
ReturnAddressReg = 26,
ReturnValueReg = 0,
FramePointerReg = 15,
ArgumentReg0 = 16,
ArgumentReg1 = 17,
ArgumentReg2 = 18,
ArgumentReg3 = 19,
ArgumentReg4 = 20,
ArgumentReg5 = 21,
LogVMPageSize = 13, // 8K bytes
VMPageSize = (1 << LogVMPageSize),
BranchPredAddrShiftAmt = 2, // instructions are 4-byte aligned
WordBytes = 4,
HalfwordBytes = 2,
ByteBytes = 1,
DepNA = 0,
};
// These enumerate all the registers for dependence tracking.
enum DependenceTags {
// 0..31 are the integer regs 0..31
// 32..63 are the FP regs 0..31, i.e. use (reg + FP_Base_DepTag)
FP_Base_DepTag = 32,
Ctrl_Base_DepTag = 64,
Fpcr_DepTag = 64, // floating point control register
Uniq_DepTag = 65,
IPR_Base_DepTag = 66
};
typedef uint64_t IntReg; typedef uint64_t IntReg;
typedef IntReg IntRegFile[NumIntRegs];
class IntRegFile // floating point register file entry type
{ typedef union {
private: uint64_t q;
//For right now, let's pretend the register file is static double d;
IntReg regs[32]; } FloatReg;
public:
IntReg & operator [] (RegIndex index)
{
//Don't allow indexes outside of the 32 registers
index &= 0x1F
return regs[index];
}
};
void inline serialize(std::ostream & os) typedef union {
{ uint64_t q[NumFloatRegs]; // integer qword view
SERIALIZE_ARRAY(regs, 32); double d[NumFloatRegs]; // double-precision floating point view
} } FloatRegFile;
void inline unserialize(Checkpoint &*cp, const std::string &section)
{
UNSERIALIZE_ARRAY(regs, 32);
}
class FloatRegFile
{
private:
//By using the largest data type, we ensure everything
//is aligned correctly in memory
union
{
double double rawRegs[16];
uint64_t regDump[32];
};
class QuadRegs
{
private:
FloatRegFile * parent;
public:
QuadRegs(FloatRegFile * p) : parent(p) {;}
double double & operator [] (RegIndex index)
{
//Quad floats are index by the single
//precision register the start on,
//and only 16 should be accessed
index = (index >> 2) & 0xF;
return parent->rawRegs[index];
}
};
class DoubleRegs
{
private:
FloatRegFile * parent;
public:
DoubleRegs(FloatRegFile * p) : parent(p) {;}
double & operator [] (RegIndex index)
{
//Double floats are index by the single
//precision register the start on,
//and only 32 should be accessed
index = (index >> 1) & 0x1F
return ((double [])parent->rawRegs)[index];
}
}
class SingleRegs
{
private:
FloatRegFile * parent;
public:
SingleRegs(FloatRegFile * p) : parent(p) {;}
double & operator [] (RegFile index)
{
//Only 32 single floats should be accessed
index &= 0x1F
return ((float [])parent->rawRegs)[index];
}
}
public:
void inline serialize(std::ostream & os)
{
SERIALIZE_ARRAY(regDump, 32);
}
void inline unserialize(Checkpoint &* cp, std::string & section)
{
UNSERIALIZE_ARRAY(regDump, 32);
}
QuadRegs quadRegs;
DoubleRegs doubleRegs;
SingleRegs singleRegs;
FloatRegFile() : quadRegs(this), doubleRegs(this), singleRegs(this)
{;}
};
// control register file contents // control register file contents
typedef uint64_t MiscReg; typedef uint64_t MiscReg;
// The control registers, broken out into fields typedef struct {
class MiscRegFile uint64_t fpcr; // floating point condition codes
{ uint64_t uniq; // process-unique register
public: bool lock_flag; // lock flag for LL/SC
union Addr lock_addr; // lock address for LL/SC
{ } MiscRegFile;
uint16_t pstate; // Process State Register
struct extern const Addr PageShift;
{ extern const Addr PageBytes;
uint16_t ag:1; // Alternate Globals extern const Addr PageMask;
uint16_t ie:1; // Interrupt enable extern const Addr PageOffset;
uint16_t priv:1; // Privelege mode
uint16_t am:1; // Address mask #if FULL_SYSTEM
uint16_t pef:1; // PSTATE enable floating-point
uint16_t red:1; // RED (reset, error, debug) state typedef uint64_t InternalProcReg;
uint16_t mm:2; // Memory Model
uint16_t tle:1; // Trap little-endian #include "arch/mips/isa_fullsys_traits.hh"
uint16_t cle:1; // Current little-endian
} pstateFields; #else
} enum {
uint64_t tba; // Trap Base Address NumInternalProcRegs = 0
union };
{ #endif
uint64_t y; // Y (used in obsolete multiplication)
struct enum {
{ TotalNumRegs =
uint64_t value:32; // The actual value stored in y NumIntRegs + NumFloatRegs + NumMiscRegs + NumInternalProcRegs
const uint64_t :32; // reserved bits
} yFields;
}
uint8_t pil; // Process Interrupt Register
uint8_t cwp; // Current Window Pointer
uint16_t tt[MaxTL]; // Trap Type (Type of trap which occured on the previous level)
union
{
uint8_t ccr; // Condition Code Register
struct
{
union
{
uint8_t icc:4; // 32-bit condition codes
struct
{
uint8_t c:1; // Carry
uint8_t v:1; // Overflow
uint8_t z:1; // Zero
uint8_t n:1; // Negative
} iccFields:4;
} :4;
union
{
uint8_t xcc:4; // 64-bit condition codes
struct
{
uint8_t c:1; // Carry
uint8_t v:1; // Overflow
uint8_t z:1; // Zero
uint8_t n:1; // Negative
} xccFields:4;
} :4;
} ccrFields;
}
uint8_t asi; // Address Space Identifier
uint8_t tl; // Trap Level
uint64_t tpc[MaxTL]; // Trap Program Counter (value from previous trap level)
uint64_t tnpc[MaxTL]; // Trap Next Program Counter (value from previous trap level)
union
{
uint64_t tstate[MaxTL]; // Trap State
struct
{
//Values are from previous trap level
uint64_t cwp:5; // Current Window Pointer
const uint64_t :2; // Reserved bits
uint64_t pstate:10; // Process State
const uint64_t :6; // Reserved bits
uint64_t asi:8; // Address Space Identifier
uint64_t ccr:8; // Condition Code Register
} tstateFields[MaxTL];
}
union
{
uint64_t tick; // Hardware clock-tick counter
struct
{
uint64_t counter:63; // Clock-tick count
uint64_t npt:1; // Non-priveleged trap
} tickFields;
}
uint8_t cansave; // Savable windows
uint8_t canrestore; // Restorable windows
uint8_t otherwin; // Other windows
uint8_t cleanwin; // Clean windows
union
{
uint8_t wstate; // Window State
struct
{
uint8_t normal:3; // Bits TT<4:2> are set to on a normal
// register window trap
uint8_t other:3; // Bits TT<4:2> are set to on an "otherwin"
// register window trap
} wstateFields;
}
union
{
uint64_t ver; // Version
struct
{
uint64_t maxwin:5; // Max CWP value
const uint64_t :2; // Reserved bits
uint64_t maxtl:8; // Maximum trap level
const uint64_t :8; // Reserved bits
uint64_t mask:8; // Processor mask set revision number
uint64_t impl:16; // Implementation identification number
uint64_t manuf:16; // Manufacturer code
} verFields;
}
union
{
uint64_t fsr; // Floating-Point State Register
struct
{
union
{
uint64_t cexc:5; // Current excpetion
struct
{
uint64_t nxc:1; // Inexact
uint64_t dzc:1; // Divide by zero
uint64_t ufc:1; // Underflow
uint64_t ofc:1; // Overflow
uint64_t nvc:1; // Invalid operand
} cexecFields:5;
} :5;
union
{
uint64_t aexc:5; // Accrued exception
struct
{
uint64_t nxc:1; // Inexact
uint64_t dzc:1; // Divide by zero
uint64_t ufc:1; // Underflow
uint64_t ofc:1; // Overflow
uint64_t nvc:1; // Invalid operand
} aexecFields:5;
} :5;
uint64_t fcc0:2; // Floating-Point condtion codes
const uint64_t :1; // Reserved bits
uint64_t qne:1; // Deferred trap queue not empty
// with no queue, it should read 0
uint64_t ftt:3; // Floating-Point trap type
uint64_t ver:3; // Version (of the FPU)
const uint64_t :2; // Reserved bits
uint64_t ns:1; // Nonstandard floating point
union
{
uint64_t tem:5; // Trap Enable Mask
struct
{
uint64_t nxm:1; // Inexact
uint64_t dzm:1; // Divide by zero
uint64_t ufm:1; // Underflow
uint64_t ofm:1; // Overflow
uint64_t nvm:1; // Invalid operand
} temFields:5;
} :5;
const uint64_t :2; // Reserved bits
uint64_t rd:2; // Rounding direction
uint64_t fcc1:2; // Floating-Point condition codes
uint64_t fcc2:2; // Floating-Point condition codes
uint64_t fcc3:2; // Floating-Point condition codes
const uint64_t :26; // Reserved bits
} fsrFields;
}
union
{
uint8_t fprs; // Floating-Point Register State
struct
{
dl:1; // Dirty lower
du:1; // Dirty upper
fef:1; // FPRS enable floating-Point
} fprsFields;
}; };
void serialize(std::ostream & os) enum {
{ TotalDataRegs = NumIntRegs + NumFloatRegs
SERIALIZE_SCALAR(pstate);
SERIAlIZE_SCALAR(tba);
SERIALIZE_SCALAR(y);
SERIALIZE_SCALAR(pil);
SERIALIZE_SCALAR(cwp);
SERIALIZE_ARRAY(tt, MaxTL);
SERIALIZE_SCALAR(ccr);
SERIALIZE_SCALAR(asi);
SERIALIZE_SCALAR(tl);
SERIALIZE_SCALAR(tpc);
SERIALIZE_SCALAR(tnpc);
SERIALIZE_ARRAY(tstate, MaxTL);
SERIALIZE_SCALAR(tick);
SERIALIZE_SCALAR(cansave);
SERIALIZE_SCALAR(canrestore);
SERIALIZE_SCALAR(otherwin);
SERIALIZE_SCALAR(cleanwin);
SERIALIZE_SCALAR(wstate);
SERIALIZE_SCALAR(ver);
SERIALIZE_SCALAR(fsr);
SERIALIZE_SCALAR(fprs);
}
void unserialize(Checkpoint &* cp, std::string & section)
{
UNSERIALIZE_SCALAR(pstate);
UNSERIAlIZE_SCALAR(tba);
UNSERIALIZE_SCALAR(y);
UNSERIALIZE_SCALAR(pil);
UNSERIALIZE_SCALAR(cwp);
UNSERIALIZE_ARRAY(tt, MaxTL);
UNSERIALIZE_SCALAR(ccr);
UNSERIALIZE_SCALAR(asi);
UNSERIALIZE_SCALAR(tl);
UNSERIALIZE_SCALAR(tpc);
UNSERIALIZE_SCALAR(tnpc);
UNSERIALIZE_ARRAY(tstate, MaxTL);
UNSERIALIZE_SCALAR(tick);
UNSERIALIZE_SCALAR(cansave);
UNSERIALIZE_SCALAR(canrestore);
UNSERIALIZE_SCALAR(otherwin);
UNSERIALIZE_SCALAR(cleanwin);
UNSERIALIZE_SCALAR(wstate);
UNSERIALIZE_SCALAR(ver);
UNSERIALIZE_SCALAR(fsr);
UNSERIALIZE_SCALAR(fprs);
}
}; };
typedef union typedef union {
{
IntReg intreg; IntReg intreg;
FloatReg fpreg; FloatReg fpreg;
MiscReg ctrlreg; MiscReg ctrlreg;
} AnyReg; } AnyReg;
struct RegFile struct RegFile {
{
IntRegFile intRegFile; // (signed) integer register file IntRegFile intRegFile; // (signed) integer register file
FloatRegFile floatRegFile; // floating point register file FloatRegFile floatRegFile; // floating point register file
MiscRegFile miscRegFile; // control register file MiscRegFile miscRegs; // control register file
Addr pc; // program counter
Addr pc; // Program Counter Addr npc; // next-cycle program counter
Addr npc; // Next Program Counter #if FULL_SYSTEM
Addr nnpc; // Next next program Counter IntReg palregs[NumIntRegs]; // PAL shadow registers
InternalProcReg ipr[NumInternalProcRegs]; // internal processor regs
int intrflag; // interrupt flag
bool pal_shadow; // using pal_shadow registers
inline int instAsid() { return EV5::ITB_ASN_ASN(ipr[IPR_ITB_ASN]); }
inline int dataAsid() { return EV5::DTB_ASN_ASN(ipr[IPR_DTB_ASN]); }
#endif // FULL_SYSTEM
void serialize(std::ostream &os); void serialize(std::ostream &os);
void unserialize(Checkpoint *cp, const std::string &section); void unserialize(Checkpoint *cp, const std::string &section);
}; };
static StaticInstPtr<MipsISA> decodeInst(MachInst); StaticInstPtr decodeInst(MachInst);
// return a no-op instruction... used for instruction fetch faults // return a no-op instruction... used for instruction fetch faults
static const MachInst NoopMachInst; extern const MachInst NoopMachInst;
enum annotes {
ANNOTE_NONE = 0,
// An impossible number for instruction annotations
ITOUCH_ANNOTE = 0xffffffff,
};
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 // Instruction address compression hooks
static inline Addr realPCToFetchPC(const Addr &addr) static inline Addr realPCToFetchPC(const Addr &addr) {
{
return addr; return addr;
} }
static inline Addr fetchPCToRealPC(const Addr &addr) static inline Addr fetchPCToRealPC(const Addr &addr) {
{
return addr; return addr;
} }
// the size of "fetched" instructions (not necessarily the size // the size of "fetched" instructions (not necessarily the size
// of real instructions for PISA) // of real instructions for PISA)
static inline size_t fetchInstSize() static inline size_t fetchInstSize() {
{
return sizeof(MachInst); 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);
#if 0
static void serializeSpecialRegs(const Serializable::Proxy &proxy,
const RegFile &regs);
static void unserializeSpecialRegs(const IniFile *db,
const std::string &category,
ConfigNode *node,
RegFile &regs);
#endif
/** /**
* Function to insure ISA semantics about 0 registers. * Function to insure ISA semantics about 0 registers.
* @param xc The execution context. * @param xc The execution context.
*/ */
template <class XC> template <class XC>
static void zeroRegisters(XC *xc); void zeroRegisters(XC *xc);
//typedef MipsISA TheISA;
//typedef TheISA::MachInst MachInst;
//typedef TheISA::Addr Addr;
//typedef TheISA::RegIndex RegIndex;
//typedef TheISA::IntReg IntReg;
//typedef TheISA::IntRegFile IntRegFile;
//typedef TheISA::FloatReg FloatReg;
//typedef TheISA::FloatRegFile FloatRegFile;
//typedef TheISA::MiscReg MiscReg;
//typedef TheISA::MiscRegFile MiscRegFile;
//typedef TheISA::AnyReg AnyReg;
//typedef TheISA::RegFile RegFile;
//const int NumIntRegs = TheISA::NumIntRegs;
//const int NumFloatRegs = TheISA::NumFloatRegs;
//const int NumMiscRegs = TheISA::NumMiscRegs;
//const int TotalNumRegs = TheISA::TotalNumRegs;
//const int VMPageSize = TheISA::VMPageSize;
//const int LogVMPageSize = TheISA::LogVMPageSize;
//const int ZeroReg = TheISA::ZeroReg;
//const int StackPointerReg = TheISA::StackPointerReg;
//const int GlobalPointerReg = TheISA::GlobalPointerReg;
//const int ReturnAddressReg = TheISA::ReturnAddressReg;
//const int ReturnValueReg = TheISA::ReturnValueReg;
//const int ArgumentReg0 = TheISA::ArgumentReg0;
//const int ArgumentReg1 = TheISA::ArgumentReg1;
//const int ArgumentReg2 = TheISA::ArgumentReg2;
//const int BranchPredAddrShiftAmt = TheISA::BranchPredAddrShiftAmt;
const Addr MaxAddr = (Addr)-1;
}; };
#if !FULL_SYSTEM
typedef MIPSISA TheISA;
typedef TheISA::MachInst MachInst;
typedef TheISA::Addr Addr;
typedef TheISA::RegIndex RegIndex;
typedef TheISA::IntReg IntReg;
typedef TheISA::IntRegFile IntRegFile;
typedef TheISA::FloatReg FloatReg;
typedef TheISA::FloatRegFile FloatRegFile;
typedef TheISA::MiscReg MiscReg;
typedef TheISA::MiscRegFile MiscRegFile;
typedef TheISA::AnyReg AnyReg;
typedef TheISA::RegFile RegFile;
const int VMPageSize = TheISA::VMPageSize;
const int LogVMPageSize = TheISA::LogVMPageSize;
const int ZeroReg = TheISA::ZeroReg;
const int BranchPredAddrShiftAmt = TheISA::BranchPredAddrShiftAmt;
const int MaxAddr = (Addr)-1;
#ifndef FULL_SYSTEM
class SyscallReturn { class SyscallReturn {
public: public:
template <class T> template <class T>
@ -526,7 +334,10 @@ class SyscallReturn {
#endif #endif
#ifdef FULL_SYSTEM #if FULL_SYSTEM
//typedef TheISA::InternalProcReg InternalProcReg;
//const int NumInternalProcRegs = TheISA::NumInternalProcRegs;
//const int NumInterruptLevels = TheISA::NumInterruptLevels;
#include "arch/mips/mips34k.hh" #include "arch/mips/mips34k.hh"
#endif #endif