diff options
Diffstat (limited to 'src/arch/mips/utility.hh')
-rw-r--r-- | src/arch/mips/utility.hh | 159 |
1 files changed, 80 insertions, 79 deletions
diff --git a/src/arch/mips/utility.hh b/src/arch/mips/utility.hh index 23c965bd4..37cd838e5 100644 --- a/src/arch/mips/utility.hh +++ b/src/arch/mips/utility.hh @@ -45,87 +45,88 @@ class ThreadContext; namespace MipsISA { - uint64_t getArgument(ThreadContext *tc, int number, bool fp); - - //////////////////////////////////////////////////////////////////////// - // - // Floating Point Utility Functions - // - uint64_t fpConvert(ConvertType cvt_type, double fp_val); - double roundFP(double val, int digits); - double truncFP(double val); - - bool getCondCode(uint32_t fcsr, int cc); - uint32_t genCCVector(uint32_t fcsr, int num, uint32_t cc_val); - uint32_t genInvalidVector(uint32_t fcsr); - - bool isNan(void *val_ptr, int size); - bool isQnan(void *val_ptr, int size); - bool isSnan(void *val_ptr, int size); - - static inline bool - inUserMode(ThreadContext *tc) - { - MiscReg Stat = tc->readMiscReg(MipsISA::Status); - MiscReg Dbg = tc->readMiscReg(MipsISA::Debug); - - if((Stat & 0x10000006) == 0 // EXL, ERL or CU0 set, CP0 accessible - && (Dbg & 0x40000000) == 0 // DM bit set, CP0 accessible - && (Stat & 0x00000018) != 0) { // KSU = 0, kernel mode is base mode - // Unable to use Status_CU0, etc directly, using bitfields & masks - return true; - } else { - return false; - } +uint64_t getArgument(ThreadContext *tc, int number, bool fp); + +//////////////////////////////////////////////////////////////////////// +// +// Floating Point Utility Functions +// +uint64_t fpConvert(ConvertType cvt_type, double fp_val); +double roundFP(double val, int digits); +double truncFP(double val); + +bool getCondCode(uint32_t fcsr, int cc); +uint32_t genCCVector(uint32_t fcsr, int num, uint32_t cc_val); +uint32_t genInvalidVector(uint32_t fcsr); + +bool isNan(void *val_ptr, int size); +bool isQnan(void *val_ptr, int size); +bool isSnan(void *val_ptr, int size); + +static inline bool +inUserMode(ThreadContext *tc) +{ + MiscReg Stat = tc->readMiscReg(MipsISA::Status); + MiscReg Dbg = tc->readMiscReg(MipsISA::Debug); + + if ((Stat & 0x10000006) == 0 && // EXL, ERL or CU0 set, CP0 accessible + (Dbg & 0x40000000) == 0 && // DM bit set, CP0 accessible + (Stat & 0x00000018) != 0) { // KSU = 0, kernel mode is base mode + // Unable to use Status_CU0, etc directly, using bitfields & masks + return true; + } else { + return false; } +} + +// 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); +} + +//////////////////////////////////////////////////////////////////////// +// +// Register File Utility Functions +// +static inline MachInst makeRegisterCopy(int dest, int src) { + panic("makeRegisterCopy not implemented"); + return 0; +} + +template <class CPU> +void zeroRegisters(CPU *cpu); + +//////////////////////////////////////////////////////////////////////// +// +// Translation stuff +// +inline Addr +TruncPage(Addr addr) +{ return addr & ~(PageBytes - 1); } + +inline Addr +RoundPage(Addr addr) +{ return (addr + PageBytes - 1) & ~(PageBytes - 1); } + +//////////////////////////////////////////////////////////////////////// +// +// CPU Utility +// +void startupCPU(ThreadContext *tc, int cpuId); + +void copyRegs(ThreadContext *src, ThreadContext *dest); +void copyMiscRegs(ThreadContext *src, ThreadContext *dest); - // 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); - } - - //////////////////////////////////////////////////////////////////////// - // - // Register File Utility Functions - // - static inline MachInst makeRegisterCopy(int dest, int src) { - panic("makeRegisterCopy not implemented"); - return 0; - } - - template <class CPU> - void zeroRegisters(CPU *cpu); - - //////////////////////////////////////////////////////////////////////// - // - // Translation stuff - // - inline Addr - TruncPage(Addr addr) - { return addr & ~(PageBytes - 1); } - - inline Addr - RoundPage(Addr addr) - { return (addr + PageBytes - 1) & ~(PageBytes - 1); } - - //////////////////////////////////////////////////////////////////////// - // - // CPU Utility - // - void startupCPU(ThreadContext *tc, int cpuId); - - void copyRegs(ThreadContext *src, ThreadContext *dest); - void copyMiscRegs(ThreadContext *src, ThreadContext *dest); }; |