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-rw-r--r--arch/mips/SConscript3
-rw-r--r--arch/mips/faults.cc151
-rw-r--r--arch/mips/faults.hh263
-rw-r--r--arch/mips/isa/decoder.isa59
-rw-r--r--arch/mips/isa/formats/unimp.isa2
-rw-r--r--arch/mips/isa/formats/unknown.isa2
-rw-r--r--arch/mips/isa/includes.isa8
-rw-r--r--arch/mips/isa_traits.cc102
-rw-r--r--arch/mips/isa_traits.hh124
-rw-r--r--arch/mips/linux_process.cc12
-rw-r--r--arch/mips/linux_process.hh1
-rw-r--r--arch/mips/process.cc6
-rw-r--r--arch/mips/process.hh4
-rw-r--r--arch/mips/utility.hh34
14 files changed, 458 insertions, 313 deletions
diff --git a/arch/mips/SConscript b/arch/mips/SConscript
index b8efa7ef9..73d588f84 100644
--- a/arch/mips/SConscript
+++ b/arch/mips/SConscript
@@ -57,9 +57,8 @@ full_system_sources = Split('''
# Syscall emulation (non-full-system) sources
syscall_emulation_sources = Split('''
- common_syscall_emul.cc
linux_process.cc
- tru64_process.cc
+ process.cc
''')
# Set up complete list of sources based on configuration.
diff --git a/arch/mips/faults.cc b/arch/mips/faults.cc
index 142dfe0a4..142328c40 100644
--- a/arch/mips/faults.cc
+++ b/arch/mips/faults.cc
@@ -27,54 +27,105 @@
*/
#include "arch/mips/faults.hh"
+#include "cpu/exec_context.hh"
+#include "cpu/base.hh"
+#include "base/trace.hh"
+
+namespace MipsISA
+{
+
+FaultName MachineCheckFault::_name = "mchk";
+FaultVect MachineCheckFault::_vect = 0x0401;
+FaultStat MachineCheckFault::_count;
+
+FaultName AlignmentFault::_name = "unalign";
+FaultVect AlignmentFault::_vect = 0x0301;
+FaultStat AlignmentFault::_count;
+
+FaultName ResetFault::_name = "reset";
+FaultVect ResetFault::_vect = 0x0001;
+FaultStat ResetFault::_count;
+
+FaultName ArithmeticFault::_name = "arith";
+FaultVect ArithmeticFault::_vect = 0x0501;
+FaultStat ArithmeticFault::_count;
+
+FaultName InterruptFault::_name = "interrupt";
+FaultVect InterruptFault::_vect = 0x0101;
+FaultStat InterruptFault::_count;
+
+FaultName NDtbMissFault::_name = "dtb_miss_single";
+FaultVect NDtbMissFault::_vect = 0x0201;
+FaultStat NDtbMissFault::_count;
+
+FaultName PDtbMissFault::_name = "dtb_miss_double";
+FaultVect PDtbMissFault::_vect = 0x0281;
+FaultStat PDtbMissFault::_count;
+
+FaultName DtbPageFault::_name = "dfault";
+FaultVect DtbPageFault::_vect = 0x0381;
+FaultStat DtbPageFault::_count;
+
+FaultName DtbAcvFault::_name = "dfault";
+FaultVect DtbAcvFault::_vect = 0x0381;
+FaultStat DtbAcvFault::_count;
+
+FaultName ItbMissFault::_name = "itbmiss";
+FaultVect ItbMissFault::_vect = 0x0181;
+FaultStat ItbMissFault::_count;
+
+FaultName ItbPageFault::_name = "itbmiss";
+FaultVect ItbPageFault::_vect = 0x0181;
+FaultStat ItbPageFault::_count;
+
+FaultName ItbAcvFault::_name = "iaccvio";
+FaultVect ItbAcvFault::_vect = 0x0081;
+FaultStat ItbAcvFault::_count;
+
+FaultName UnimplementedOpcodeFault::_name = "opdec";
+FaultVect UnimplementedOpcodeFault::_vect = 0x0481;
+FaultStat UnimplementedOpcodeFault::_count;
+
+FaultName FloatEnableFault::_name = "fen";
+FaultVect FloatEnableFault::_vect = 0x0581;
+FaultStat FloatEnableFault::_count;
+
+FaultName PalFault::_name = "pal";
+FaultVect PalFault::_vect = 0x2001;
+FaultStat PalFault::_count;
+
+FaultName IntegerOverflowFault::_name = "intover";
+FaultVect IntegerOverflowFault::_vect = 0x0501;
+FaultStat IntegerOverflowFault::_count;
+
+#if FULL_SYSTEM
+
+void MipsFault::invoke(ExecContext * xc)
+{
+ FaultBase::invoke(xc);
+ countStat()++;
+
+ // exception restart address
+ if (setRestartAddress() || !xc->inPalMode())
+ xc->setMiscReg(MipsISA::IPR_EXC_ADDR, xc->readPC());
+
+ if (skipFaultingInstruction()) {
+ // traps... skip faulting instruction.
+ xc->setMiscReg(MipsISA::IPR_EXC_ADDR,
+ xc->readMiscReg(MipsISA::IPR_EXC_ADDR) + 4);
+ }
+
+ xc->setPC(xc->readMiscReg(MipsISA::IPR_PAL_BASE) + vect());
+ xc->setNextPC(xc->readPC() + sizeof(MachInst));
+}
+
+void ArithmeticFault::invoke(ExecContext * xc)
+{
+ FaultBase::invoke(xc);
+ panic("Arithmetic traps are unimplemented!");
+}
+
+#endif
+
+} // namespace MipsISA
-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 **);
diff --git a/arch/mips/faults.hh b/arch/mips/faults.hh
index c1cb956b0..0bdabe29e 100644
--- a/arch/mips/faults.hh
+++ b/arch/mips/faults.hh
@@ -30,131 +30,240 @@
#define __MIPS_FAULTS_HH__
#include "sim/faults.hh"
-#include "arch/isa_traits.hh" //For the Addr type
+
+// The design of the "name" and "vect" functions is in sim/faults.hh
+
+namespace MipsISA
+{
+
+typedef const Addr FaultVect;
class MipsFault : public FaultBase
{
+ protected:
+ virtual bool skipFaultingInstruction() {return false;}
+ virtual bool setRestartAddress() {return true;}
public:
- MipsFault(char * newName, int newId, Addr newVect)
- : FaultBase(newName, newId), vect(newVect)
- {;}
+#if FULL_SYSTEM
+ void invoke(ExecContext * xc);
+#endif
+ virtual FaultVect vect() = 0;
+ virtual FaultStat & countStat() = 0;
+};
- Addr vect;
+class MachineCheckFault : public MipsFault
+{
+ private:
+ static FaultName _name;
+ static FaultVect _vect;
+ static FaultStat _count;
+ public:
+ FaultName name() {return _name;}
+ FaultVect vect() {return _vect;}
+ FaultStat & countStat() {return _count;}
+ bool isMachineCheckFault() {return true;}
};
-extern class ResetFaultType : public MipsFault
+class AlignmentFault : public MipsFault
{
+ private:
+ static FaultName _name;
+ static FaultVect _vect;
+ static FaultStat _count;
public:
- ResetFaultType(char * newName, int newId, Addr newVect)
- : MipsFault(newName, newId, newVect)
- {;}
-} * const ResetFault;
+ FaultName name() {return _name;}
+ FaultVect vect() {return _vect;}
+ FaultStat & countStat() {return _count;}
+ bool isAlignmentFault() {return true;}
+};
-extern class ArithmeticFaultType : public MipsFault
+static inline Fault genMachineCheckFault()
{
+ return new MachineCheckFault;
+}
+
+static inline Fault genAlignmentFault()
+{
+ return new AlignmentFault;
+}
+
+class ResetFault : public MipsFault
+{
+ private:
+ static FaultName _name;
+ static FaultVect _vect;
+ static FaultStat _count;
public:
- ArithmeticFaultType(char * newName, int newId, Addr newVect)
- : MipsFault(newName, newId, newVect)
- {;}
-} * const ArithmeticFault;
+ FaultName name() {return _name;}
+ FaultVect vect() {return _vect;}
+ FaultStat & countStat() {return _count;}
+};
-extern class InterruptFaultType : public MipsFault
+class ArithmeticFault : public MipsFault
{
+ protected:
+ bool skipFaultingInstruction() {return true;}
+ private:
+ static FaultName _name;
+ static FaultVect _vect;
+ static FaultStat _count;
public:
- InterruptFaultType(char * newName, int newId, Addr newVect)
- : MipsFault(newName, newId, newVect)
- {;}
-} * const InterruptFault;
+ FaultName name() {return _name;}
+ FaultVect vect() {return _vect;}
+ FaultStat & countStat() {return _count;}
+#if FULL_SYSTEM
+ void invoke(ExecContext * xc);
+#endif
+};
-extern class NDtbMissFaultType : public MipsFault
+class InterruptFault : public MipsFault
{
+ protected:
+ bool setRestartAddress() {return false;}
+ private:
+ static FaultName _name;
+ static FaultVect _vect;
+ static FaultStat _count;
public:
- NDtbMissFaultType(char * newName, int newId, Addr newVect)
- : MipsFault(newName, newId, newVect)
- {;}
-} * const NDtbMissFault;
+ FaultName name() {return _name;}
+ FaultVect vect() {return _vect;}
+ FaultStat & countStat() {return _count;}
+};
-extern class PDtbMissFaultType : public MipsFault
+class NDtbMissFault : public MipsFault
{
+ private:
+ static FaultName _name;
+ static FaultVect _vect;
+ static FaultStat _count;
public:
- PDtbMissFaultType(char * newName, int newId, Addr newVect)
- : MipsFault(newName, newId, newVect)
- {;}
-} * const PDtbMissFault;
+ FaultName name() {return _name;}
+ FaultVect vect() {return _vect;}
+ FaultStat & countStat() {return _count;}
+};
-extern class DtbPageFaultType : public MipsFault
+class PDtbMissFault : public MipsFault
{
+ private:
+ static FaultName _name;
+ static FaultVect _vect;
+ static FaultStat _count;
public:
- DtbPageFaultType(char * newName, int newId, Addr newVect)
- : MipsFault(newName, newId, newVect)
- {;}
-} * const DtbPageFault;
+ FaultName name() {return _name;}
+ FaultVect vect() {return _vect;}
+ FaultStat & countStat() {return _count;}
+};
-extern class DtbAcvFaultType : public MipsFault
+class DtbPageFault : public MipsFault
{
+ private:
+ static FaultName _name;
+ static FaultVect _vect;
+ static FaultStat _count;
public:
- DtbAcvFaultType(char * newName, int newId, Addr newVect)
- : MipsFault(newName, newId, newVect)
- {;}
-} * const DtbAcvFault;
+ FaultName name() {return _name;}
+ FaultVect vect() {return _vect;}
+ FaultStat & countStat() {return _count;}
+};
+
+class DtbAcvFault : public MipsFault
+{
+ private:
+ static FaultName _name;
+ static FaultVect _vect;
+ static FaultStat _count;
+ public:
+ FaultName name() {return _name;}
+ FaultVect vect() {return _vect;}
+ FaultStat & countStat() {return _count;}
+};
-extern class ItbMissFaultType : public MipsFault
+class ItbMissFault : public MipsFault
{
+ private:
+ static FaultName _name;
+ static FaultVect _vect;
+ static FaultStat _count;
public:
- ItbMissFaultType(char * newName, int newId, Addr newVect)
- : MipsFault(newName, newId, newVect)
- {;}
-} * const ItbMissFault;
+ FaultName name() {return _name;}
+ FaultVect vect() {return _vect;}
+ FaultStat & countStat() {return _count;}
+};
-extern class ItbPageFaultType : public MipsFault
+class ItbPageFault : public MipsFault
{
+ private:
+ static FaultName _name;
+ static FaultVect _vect;
+ static FaultStat _count;
public:
- ItbPageFaultType(char * newName, int newId, Addr newVect)
- : MipsFault(newName, newId, newVect)
- {;}
-} * const ItbPageFault;
+ FaultName name() {return _name;}
+ FaultVect vect() {return _vect;}
+ FaultStat & countStat() {return _count;}
+};
-extern class ItbAcvFaultType : public MipsFault
+class ItbAcvFault : public MipsFault
{
+ private:
+ static FaultName _name;
+ static FaultVect _vect;
+ static FaultStat _count;
public:
- ItbAcvFaultType(char * newName, int newId, Addr newVect)
- : MipsFault(newName, newId, newVect)
- {;}
-} * const ItbAcvFault;
+ FaultName name() {return _name;}
+ FaultVect vect() {return _vect;}
+ FaultStat & countStat() {return _count;}
+};
-extern class UnimplementedOpcodeFaultType : public MipsFault
+class UnimplementedOpcodeFault : public MipsFault
{
+ private:
+ static FaultName _name;
+ static FaultVect _vect;
+ static FaultStat _count;
public:
- UnimplementedOpcodeFaultType(char * newName, int newId, Addr newVect)
- : MipsFault(newName, newId, newVect)
- {;}
-} * const UnimplementedOpcodeFault;
+ FaultName name() {return _name;}
+ FaultVect vect() {return _vect;}
+ FaultStat & countStat() {return _count;}
+};
-extern class FloatEnableFaultType : public MipsFault
+class FloatEnableFault : public MipsFault
{
+ private:
+ static FaultName _name;
+ static FaultVect _vect;
+ static FaultStat _count;
public:
- FloatEnableFaultType(char * newName, int newId, Addr newVect)
- : MipsFault(newName, newId, newVect)
- {;}
-} * const FloatEnableFault;
+ FaultName name() {return _name;}
+ FaultVect vect() {return _vect;}
+ FaultStat & countStat() {return _count;}
+};
-extern class PalFaultType : public MipsFault
+class PalFault : public MipsFault
{
+ protected:
+ bool skipFaultingInstruction() {return true;}
+ private:
+ static FaultName _name;
+ static FaultVect _vect;
+ static FaultStat _count;
public:
- PalFaultType(char * newName, int newId, Addr newVect)
- : MipsFault(newName, newId, newVect)
- {;}
-} * const PalFault;
+ FaultName name() {return _name;}
+ FaultVect vect() {return _vect;}
+ FaultStat & countStat() {return _count;}
+};
-extern class IntegerOverflowFaultType : public MipsFault
+class IntegerOverflowFault : public MipsFault
{
+ private:
+ static FaultName _name;
+ static FaultVect _vect;
+ static FaultStat _count;
public:
- IntegerOverflowFaultType(char * newName, int newId, Addr newVect)
- : MipsFault(newName, newId, newVect)
- {;}
-} * const IntegerOverflowFault;
+ FaultName name() {return _name;}
+ FaultVect vect() {return _vect;}
+ FaultStat & countStat() {return _count;}
+};
-extern Fault ** ListOfFaults[];
-extern int NumFaults;
+} // MipsISA namespace
#endif // __FAULTS_HH__
diff --git a/arch/mips/isa/decoder.isa b/arch/mips/isa/decoder.isa
index 3f054f6a5..ac97241ed 100644
--- a/arch/mips/isa/decoder.isa
+++ b/arch/mips/isa/decoder.isa
@@ -20,8 +20,8 @@ decode OPCODE_HI default Unknown::unknown() {
0x0: decode FUNCTION_LO {
0x1: decode MOVCI {
format BasicOp {
- 0: movf({{ if (xc->readMiscReg(FPCR,0) != CC) Rd = Rs}});
- 1: movt({{ if (xc->readMiscReg(FPCR,0) == CC) Rd = Rs}});
+ 0: movf({{ if (xc->readMiscReg(FPCR) != CC) Rd = Rs}});
+ 1: movt({{ if (xc->readMiscReg(FPCR) == CC) Rd = Rs}});
}
}
@@ -31,15 +31,10 @@ decode OPCODE_HI default Unknown::unknown() {
//are used to distinguish among the SLL, NOP, SSNOP and EHB functions."
0x0: decode RS {
- 0x0: decode RT default BasicOp::sll({{ Rd = Rt.uw << SA; }}) {
- 0x0: decode RD{
- 0x0: decode HINT {
- 0x0:nop({{}}); //really sll r0,r0,0
- 0x1:ssnop({{}});//really sll r0,r0,1
- 0x3:ehb({{}}); //really sll r0,r0,3
- }
- }
- }
+ 0x0: sll({{ Rd = Rt.uw << SA; }});
+ //0x0:nop({{ ; }}); //really sll r0,r0,0
+ // 0x1:ssnop({{ ; }});//really sll r0,r0,1
+ // 0x3:ehb({{ ; }}); //really sll r0,r0,3
}
0x2: decode SRL {
@@ -283,55 +278,37 @@ decode OPCODE_HI default Unknown::unknown() {
0x0: decode SC {
0x0: dvpe({{
- int idx;
- int sel;
- getMiscRegIdx(MVPControl,idx,sel);
- Rt.sw = xc->readMiscReg(idx,sel);
- xc->setMiscReg(idx,sel);
+ Rt.sw = xc->readMiscReg(MVPControl);
+ xc->setMiscReg(MVPControl,0);
}});
0x1: evpe({{
- int idx;
- int sel;
- getMiscRegIdx(MVPControl,idx,sel);
- Rt.sw = xc->readMiscReg(idx,sel);
- xc->setMiscReg(idx,sel,1);
+ Rt.sw = xc->readMiscReg(MVPControl);
+ xc->setMiscReg(MVPControl,1);
}});
}
0x1: decode SC {
0x0: dmt({{
- int idx;
- int sel;
- getMiscRegIdx(VPEControl,idx,sel);
- Rt.sw = xc->readMiscReg(idx,sel);
- xc->setMiscReg(idx,sel);
+ Rt.sw = xc->readMiscReg(VPEControl);
+ xc->setMiscReg(VPEControl,0);
}});
0x1: emt({{
- int idx;
- int sel;
- getMiscRegIdx(VPEControl,idx,sel);
- Rt.sw = xc->readMiscReg(idx,sel);
- xc->setMiscReg(idx,sel,1);
+ Rt.sw = xc->readMiscReg(VPEControl);
+ xc->setMiscReg(VPEControl,1);
}});
}
0xC: decode SC {
0x0: di({{
- int idx;
- int sel;
- getMiscRegIdx(Status,idx,sel);
- Rt.sw = xc->readMiscReg(idx,sel);
- xc->setMiscReg(idx,sel);
+ Rt.sw = xc->readMiscReg(Status);
+ xc->setMiscReg(Status,0);
}});
0x1: ei({{
- int idx;
- int sel;
- getMiscRegIdx(Status,idx,sel);
- Rt.sw = xc->readMiscReg(idx,sel);
- xc->setMiscReg(idx,sel,1);
+ Rt.sw = xc->readMiscReg(Status);
+ xc->setMiscReg(Status,1);
}});
}
}
diff --git a/arch/mips/isa/formats/unimp.isa b/arch/mips/isa/formats/unimp.isa
index adbd5b5b1..890cf8d1a 100644
--- a/arch/mips/isa/formats/unimp.isa
+++ b/arch/mips/isa/formats/unimp.isa
@@ -111,7 +111,7 @@ output exec {{
{
panic("attempt to execute unimplemented instruction '%s' "
"(inst 0x%08x, opcode 0x%x)", mnemonic, machInst, OPCODE);
- return UnimplementedOpcodeFault;
+ return new UnimplementedOpcodeFault;
}
Fault
diff --git a/arch/mips/isa/formats/unknown.isa b/arch/mips/isa/formats/unknown.isa
index 4601b3684..47d166255 100644
--- a/arch/mips/isa/formats/unknown.isa
+++ b/arch/mips/isa/formats/unknown.isa
@@ -42,7 +42,7 @@ output exec {{
{
panic("attempt to execute unknown instruction "
"(inst 0x%08x, opcode 0x%x)", machInst, OPCODE);
- return UnimplementedOpcodeFault;
+ return new UnimplementedOpcodeFault;
}
}};
diff --git a/arch/mips/isa/includes.isa b/arch/mips/isa/includes.isa
index da919be00..b81c4eda2 100644
--- a/arch/mips/isa/includes.isa
+++ b/arch/mips/isa/includes.isa
@@ -9,10 +9,11 @@ output header {{
#include <iomanip>
#include "cpu/static_inst.hh"
-#include "mem/mem_req.hh" // some constructors use MemReq flags
+#include "arch/mips/isa_traits.hh"
}};
output decoder {{
+#include "arch/mips/isa_traits.hh"
#include "base/cprintf.hh"
#include "base/loader/symtab.hh"
#include "cpu/exec_context.hh" // for Jump::branchTarget()
@@ -21,9 +22,12 @@ output decoder {{
#if defined(linux)
#include <fenv.h>
#endif
+
+using namespace MipsISA;
}};
output exec {{
+#include "arch/mips/isa_traits.hh"
#include <math.h>
#if defined(linux)
#include <fenv.h>
@@ -35,5 +39,7 @@ output exec {{
#include "cpu/base.hh"
#include "cpu/exetrace.hh"
#include "sim/sim_exit.hh"
+
+using namespace MipsISA;
}};
diff --git a/arch/mips/isa_traits.cc b/arch/mips/isa_traits.cc
index d01fa6bd4..58d974448 100644
--- a/arch/mips/isa_traits.cc
+++ b/arch/mips/isa_traits.cc
@@ -34,97 +34,25 @@
using namespace MipsISA;
-//Function now Obsolete in current state.
-//If anyting this should return the correct miscreg index
-//but that is handled implicitly with enums anyway
void
-MipsISA::getMiscRegIdx(int reg_name,int &idx, int &sel)
+MipsISA::MiscRegFile::copyMiscRegs(ExecContext *xc)
{
- switch(reg_name)
- {
- case Index: idx = 0; sel = 0; break; //0-0 Index into the TLB array
- case MVPControl: idx = 0; sel = 1; break; //0-1 Per-processor register containing global
- case MVPConf0: idx = 0; sel = 2; break; //0-2 Per-processor register containing global
- case MVPConf1: idx = 0; sel = 3; break; //0-3 Per-processor register containing global
- case Random: idx = 1; sel = 3; break; //1-0 Randomly generated index into the TLB array
- case VPEControl: idx = 1; sel = 1; break; //1-1 Per-VPE register containing relatively volatile
- //thread configuration data
- case VPEConf0: idx = 1; sel = 2; break; //1-2 Per-VPE multi-thread configuration
- //information
- case VPEConf1: idx = 1; sel = 3; break; //1-3 Per-VPE multi-thread configuration
- //information
- case YQMask: idx = 1; sel = 4; break; //Per-VPE register defining which YIELD
- //qualifier bits may be used without generating
- //an exception
- case VPESchedule: idx = 1; sel = 5; break;
- case VPEScheFBack: idx = 1; sel = 6; break;
- case VPEOpt: idx = 1; sel = 7; break;
- case EntryLo0: idx = 1; sel = 5; break;
- case TCStatus: idx = 1; sel = 5; break;
- case TCBind: idx = 1; sel = 5; break;
- case TCRestart: idx = 1; sel = 5; break;
- case TCHalt: idx = 1; sel = 5; break;
- case TCContext: idx = 1; sel = 5; break;
- case TCSchedule: idx = 1; sel = 5; break;
- case TCScheFBack: panic("Accessing Unimplemented CP0 Register"); break;
- case EntryLo1: panic("Accessing Unimplemented CP0 Register"); break;
- case Context: panic("Accessing Unimplemented CP0 Register"); break;
- case ContextConfig: panic("Accessing Unimplemented CP0 Register"); break;
- //case PageMask: panic("Accessing Unimplemented CP0 Register"); break;
- case PageGrain: panic("Accessing Unimplemented CP0 Register"); break;
- case Wired: panic("Accessing Unimplemented CP0 Register"); break;
- case SRSConf0: panic("Accessing Unimplemented CP0 Register"); break;
- case SRSConf1: panic("Accessing Unimplemented CP0 Register"); break;
- case SRSConf2: panic("Accessing Unimplemented CP0 Register"); break;
- case SRSConf3: panic("Accessing Unimplemented CP0 Register"); break;
- case SRSConf4: panic("Accessing Unimplemented CP0 Register"); break;
- case BadVAddr: panic("Accessing Unimplemented CP0 Register"); break;
- case Count: panic("Accessing Unimplemented CP0 Register"); break;
- case EntryHi: panic("Accessing Unimplemented CP0 Register"); break;
- case Compare: panic("Accessing Unimplemented CP0 Register"); break;
- case Status: idx = 12; sel = 0; break; //12-0 Processor status and control
- case IntCtl: idx = 12; sel = 1; break; //12-1 Interrupt system status and control
- case SRSCtl: idx = 12; sel = 2; break; //12-2 Shadow register set status and control
- case SRSMap: idx = 12; sel = 3; break; //12-3 Shadow set IPL mapping
- case Cause: idx = 13; sel = 0; break; //13-0 Cause of last general exception
- case EPC: idx = 14; sel = 0; break; //14-0 Program counter at last exception
- case PrId: idx = 15; sel = 0; break; //15-0 Processor identification and revision
- case EBase: idx = 15; sel = 1; break; //15-1 Exception vector base register
- case Config: panic("Accessing Unimplemented CP0 Register"); break;
- case Config1: panic("Accessing Unimplemented CP0 Register"); break;
- case Config2: panic("Accessing Unimplemented CP0 Register"); break;
- case Config3: panic("Accessing Unimplemented CP0 Register"); break;
- case LLAddr: panic("Accessing Unimplemented CP0 Register"); break;
- case WatchLo: panic("Accessing Unimplemented CP0 Register"); break;
- case WatchHi: panic("Accessing Unimplemented CP0 Register"); break;
- case Debug: panic("Accessing Unimplemented CP0 Register"); break;
- case TraceControl1: panic("Accessing Unimplemented CP0 Register"); break;
- case TraceControl2: panic("Accessing Unimplemented CP0 Register"); break;
- case UserTraceData: panic("Accessing Unimplemented CP0 Register"); break;
- case TraceBPC: panic("Accessing Unimplemented CP0 Register"); break;
- case DEPC: panic("Accessing Unimplemented CP0 Register"); break;
- case PerfCnt: panic("Accessing Unimplemented CP0 Register"); break;
- case ErrCtl: panic("Accessing Unimplemented CP0 Register"); break;
- case CacheErr0: panic("Accessing Unimplemented CP0 Register"); break;
- case CacheErr1: panic("Accessing Unimplemented CP0 Register"); break;
- case CacheErr2: panic("Accessing Unimplemented CP0 Register"); break;
- case CacheErr3: panic("Accessing Unimplemented CP0 Register"); break;
- case TagLo: panic("Accessing Unimplemented CP0 Register"); break;
- case DataLo: panic("Accessing Unimplemented CP0 Register"); break;
- case TagHi: panic("Accessing Unimplemented CP0 Register"); break;
- case DataHi: panic("Accessing Unimplemented CP0 Register"); break;
- case ErrorEPC: panic("Accessing Unimplemented CP0 Register"); break;
-
- default:
- panic("Accessing Unimplemented Misc. Register");
- }
+ /*fpcr = xc->readMiscReg(MipsISA::Fpcr_DepTag);
+ uniq = xc->readMiscReg(MipsISA::Uniq_DepTag);
+ lock_flag = xc->readMiscReg(MipsISA::Lock_Flag_DepTag);
+ lock_addr = xc->readMiscReg(MipsISA::Lock_Addr_DepTag);
+
+#if FULL_SYSTEM
+ copyIprs(xc);
+ #endif*/
}
-void RegFile::coldReset()
+
+void MipsISA::RegFile::coldReset()
{
//CP0 Random Reg:
//Randomly generated index into the TLB array
- miscRegs[Random] = 0x0000003f;
+ /*miscRegs[Random] = 0x0000003f;
//CP0 Wired Reg.
miscRegs[Wired] = 0x0000000;
@@ -175,7 +103,7 @@ void RegFile::coldReset()
miscRegs[PerfCnt0] = 0x0000000;
//CP0 PERFCNTL2
- miscRegs[PerfCnt1] = 0x0000000;
+ miscRegs[PerfCnt1] = 0x0000000;*/
}
@@ -247,6 +175,10 @@ void RegFile::createCP0Regs()
//Cop-0 Regs. Bank 20:
miscRegs[20].resize(1);
+ case PerfCnt0: panic("Accessing Unimplemented CP0 Register"); break;
+ case PerfCnt1: panic("Accessing Unimplemented CP0 Register"); break;
+ case PerfCnt2: panic("Accessing Unimplemented CP0 Register"); break;
+ case PerfCnt3: panic("Accessing Unimplemented CP0 Register"); break;
//Cop-0 Regs. Bank 21:
//miscRegs[21].resize(1);
diff --git a/arch/mips/isa_traits.hh b/arch/mips/isa_traits.hh
index 1dfa0dc7a..4850010d4 100644
--- a/arch/mips/isa_traits.hh
+++ b/arch/mips/isa_traits.hh
@@ -54,12 +54,48 @@ int DTB_ASN_ASN(uint64_t reg);
int ITB_ASN_ASN(uint64_t reg);
};
+#if !FULL_SYSTEM
+class SyscallReturn {
+ public:
+ template <class T>
+ SyscallReturn(T v, bool s)
+ {
+ retval = (uint64_t)v;
+ success = s;
+ }
+
+ template <class T>
+ SyscallReturn(T v)
+ {
+ success = (v >= 0);
+ retval = (uint64_t)v;
+ }
+
+ ~SyscallReturn() {}
+
+ SyscallReturn& operator=(const SyscallReturn& s) {
+ retval = s.retval;
+ success = s.success;
+ return *this;
+ }
+
+ bool successful() { return success; }
+ uint64_t value() { return retval; }
+
+
+ private:
+ uint64_t retval;
+ bool success;
+};
+#endif
+
namespace MipsISA
{
typedef uint32_t MachInst;
-// typedef uint64_t Addr;
+ typedef uint32_t MachInst;
+ typedef uint64_t ExtMachInst;
typedef uint8_t RegIndex;
-
+// typedef uint64_t Addr;
enum {
MemoryEnd = 0xffffffffffffffffULL,
@@ -87,7 +123,9 @@ namespace MipsISA
ArgumentReg3 = 19,
ArgumentReg4 = 20,
ArgumentReg5 = 21,
-
+ SyscallNumReg = ReturnValueReg,
+ SyscallPseudoReturnReg = ArgumentReg4,
+ SyscallSuccessReg = 19,
LogVMPageSize = 13, // 8K bytes
VMPageSize = (1 << LogVMPageSize),
@@ -129,8 +167,7 @@ namespace MipsISA
typedef uint64_t MiscReg;
//typedef MiscReg MiscRegFile[NumMiscRegs];
class MiscRegFile {
- public:
- MiscReg
+
protected:
uint64_t fpcr; // floating point condition codes
uint64_t uniq; // process-unique register
@@ -145,6 +182,8 @@ namespace MipsISA
int getInstAsid();
int getDataAsid();
+ void copyMiscRegs(ExecContext *xc);
+
MiscReg readReg(int misc_reg)
{ return miscRegFile[misc_reg]; }
@@ -159,7 +198,7 @@ namespace MipsISA
{ miscRegFile[misc_reg] = val; return NoFault; }
#if FULL_SYSTEM
- void clearIprs() { };
+ void clearIprs() { }
protected:
InternalProcReg ipr[NumInternalProcRegs]; // Internal processor regs
@@ -249,7 +288,7 @@ namespace MipsISA
EPC = 105,//105-112 //14-0 Program counter at last exception
- PRId = 113//113-120, //15-0 Processor identification and revision
+ PRId = 113,//113-120, //15-0 Processor identification and revision
EBase = 114, //15-1 Exception vector base register
Config = 121,//Bank 16: 121-128
@@ -411,7 +450,7 @@ extern const Addr PageOffset;
void coldReset();
};
- StaticInstPtr decodeInst(MachInst);
+ StaticInstPtr decodeInst(ExtMachInst);
// return a no-op instruction... used for instruction fetch faults
extern const MachInst NoopMachInst;
@@ -422,8 +461,20 @@ extern const Addr PageOffset;
ITOUCH_ANNOTE = 0xffffffff,
};
- void getMiscRegIdx(int reg_name,int &idx, int &sel);
+//void getMiscRegIdx(int reg_name,int &idx, int &sel);
+ 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");
@@ -470,6 +521,22 @@ extern const Addr PageOffset;
return 0;
}
+ static inline void setSyscallReturn(SyscallReturn return_value, RegFile *regs)
+ {
+ // check for error condition. SPARC syscall convention is to
+ // indicate success/failure in reg the carry bit of the ccr
+ // and put the return value itself in the standard return value reg ().
+ if (return_value.successful()) {
+ // no error
+ //regs->miscRegFile.ccrFields.iccFields.c = 0;
+ regs->intRegFile[ReturnValueReg] = return_value.value();
+ } else {
+ // got an error, return details
+ //regs->miscRegFile.ccrFields.iccFields.c = 1;
+ regs->intRegFile[ReturnValueReg] = -return_value.value();
+ }
+ }
+
// Machine operations
void saveMachineReg(AnyReg &savereg, const RegFile &reg_file,
@@ -498,43 +565,6 @@ extern const Addr PageOffset;
const Addr MaxAddr = (Addr)-1;
};
-#if !FULL_SYSTEM
-class SyscallReturn {
- public:
- template <class T>
- SyscallReturn(T v, bool s)
- {
- retval = (uint64_t)v;
- success = s;
- }
-
- template <class T>
- SyscallReturn(T v)
- {
- success = (v >= 0);
- retval = (uint64_t)v;
- }
-
- ~SyscallReturn() {}
-
- SyscallReturn& operator=(const SyscallReturn& s) {
- retval = s.retval;
- success = s.success;
- return *this;
- }
-
- bool successful() { return success; }
- uint64_t value() { return retval; }
-
-
- private:
- uint64_t retval;
- bool success;
-};
-
-#endif
-
-
#if FULL_SYSTEM
//typedef TheISA::InternalProcReg InternalProcReg;
//const int NumInternalProcRegs = TheISA::NumInternalProcRegs;
@@ -543,4 +573,6 @@ class SyscallReturn {
#include "arch/mips/mips34k.hh"
#endif
+using namespace MipsISA;
+
#endif // __ARCH_MIPS_ISA_TRAITS_HH__
diff --git a/arch/mips/linux_process.cc b/arch/mips/linux_process.cc
index 1d4f62350..318b7934a 100644
--- a/arch/mips/linux_process.cc
+++ b/arch/mips/linux_process.cc
@@ -33,7 +33,6 @@
#include "base/trace.hh"
#include "cpu/exec_context.hh"
#include "kern/linux/linux.hh"
-#include "mem/functional/functional.hh"
#include "sim/process.hh"
#include "sim/syscall_emul.hh"
@@ -54,7 +53,7 @@ unameFunc(SyscallDesc *desc, int callnum, Process *process,
strcpy(name->version, "#1 Mon Aug 18 11:32:15 EDT 2003");
strcpy(name->machine, "mips");
- name.copyOut(xc->mem);
+ name.copyOut(xc->getMemPort());
return 0;
}
@@ -74,7 +73,7 @@ osf_getsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
TypedBufferArg<uint64_t> fpcr(xc->getSyscallArg(1));
// I don't think this exactly matches the HW FPCR
*fpcr = 0;
- fpcr.copyOut(xc->mem);
+ fpcr.copyOut(xc->getMemPort());
return 0;
}
@@ -100,7 +99,7 @@ osf_setsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
case 14: { // SSI_IEEE_FP_CONTROL
TypedBufferArg<uint64_t> fpcr(xc->getSyscallArg(1));
// I don't think this exactly matches the HW FPCR
- fpcr.copyIn(xc->mem);
+ fpcr.copyIn(xc->getMemPort());
DPRINTFR(SyscallVerbose, "osf_setsysinfo(SSI_IEEE_FP_CONTROL): "
" setting FPCR to 0x%x\n", gtoh(*(uint64_t*)fpcr));
return 0;
@@ -566,15 +565,16 @@ SyscallDesc MipsLinuxProcess::syscallDescs[] = {
MipsLinuxProcess::MipsLinuxProcess(const std::string &name,
ObjectFile *objFile,
+ System *system,
int stdin_fd,
int stdout_fd,
int stderr_fd,
std::vector<std::string> &argv,
std::vector<std::string> &envp)
- : LiveProcess(name, objFile, stdin_fd, stdout_fd, stderr_fd, argv, envp),
+ : LiveProcess(name, objFile, system, stdin_fd, stdout_fd, stderr_fd, argv, envp),
Num_Syscall_Descs(sizeof(syscallDescs) / sizeof(SyscallDesc))
{
- init_regs->intRegFile[0] = 0;
+ //init_regs->intRegFile[0] = 0;
}
diff --git a/arch/mips/linux_process.hh b/arch/mips/linux_process.hh
index 5408a6c44..a3efee6de 100644
--- a/arch/mips/linux_process.hh
+++ b/arch/mips/linux_process.hh
@@ -39,6 +39,7 @@ class MipsLinuxProcess : public LiveProcess
/// Constructor.
MipsLinuxProcess(const std::string &name,
ObjectFile *objFile,
+ System *system,
int stdin_fd, int stdout_fd, int stderr_fd,
std::vector<std::string> &argv,
std::vector<std::string> &envp);
diff --git a/arch/mips/process.cc b/arch/mips/process.cc
index 6de44fe9f..7f374f580 100644
--- a/arch/mips/process.cc
+++ b/arch/mips/process.cc
@@ -28,11 +28,13 @@
#include "arch/mips/process.hh"
+using namespace std;
+
namespace MipsISA
{
LiveProcess *
-createProcess(const string &nm, ObjectFile * objFile,
+createProcess(const string &nm, ObjectFile * objFile, System * system,
int stdin_fd, int stdout_fd, int stderr_fd,
vector<string> &argv, vector<string> &envp)
{
@@ -41,7 +43,7 @@ createProcess(const string &nm, ObjectFile * objFile,
fatal("Object file does not match architecture.");
switch (objFile->getOpSys()) {
case ObjectFile::Linux:
- process = new MipsLinuxProcess(nm, objFile,
+ process = new MipsLinuxProcess(nm, objFile,system,
stdin_fd, stdout_fd, stderr_fd,
argv, envp);
break;
diff --git a/arch/mips/process.hh b/arch/mips/process.hh
index ab4323107..b2a35d688 100644
--- a/arch/mips/process.hh
+++ b/arch/mips/process.hh
@@ -32,11 +32,13 @@
#include "arch/mips/linux_process.hh"
#include "base/loader/object_file.hh"
+using namespace std;
+
namespace MipsISA
{
LiveProcess *
-createProcess(const string &nm, ObjectFile * objFile,
+createProcess(const string &nm, ObjectFile * objFile,System * system,
int stdin_fd, int stdout_fd, int stderr_fd,
vector<string> &argv, vector<string> &envp);
diff --git a/arch/mips/utility.hh b/arch/mips/utility.hh
new file mode 100644
index 000000000..d4ad6cbd8
--- /dev/null
+++ b/arch/mips/utility.hh
@@ -0,0 +1,34 @@
+/*
+ * 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_MIPS_UTILITY_HH__
+#define __ARCH_MIPS_UTILITY_HH__
+
+//Placeholder file for now
+
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-23 17:17:56 +0000