Xbyak::util::Cpu Class Reference

#include <xbyak_util.h>

Public Types
typedef uint64	Type

Public Member Functions
unsigned int	getDataCacheLevels () const
unsigned int	getCoresSharingDataCache (unsigned int i) const
unsigned int	getDataCacheSize (unsigned int i) const
	Cpu ()
void	putFamily () const
bool	has (Type type) const

Static Public Member Functions
static void	getCpuid (unsigned int eaxIn, unsigned int data[4])
static void	getCpuidEx (unsigned int eaxIn, unsigned int ecxIn, unsigned int data[4])
static uint64	getXfeature ()

Public Attributes
int	model
int	family
int	stepping
int	extModel
int	extFamily
int	displayFamily
int	displayModel
unsigned int	data_cache_size [maxNumberCacheLevels]
unsigned int	cores_sharing_data_cache [maxNumberCacheLevels]
unsigned int	data_cache_levels

Static Public Attributes
static const unsigned int	maxNumberCacheLevels = 10
static const Type	NONE = 0
static const Type	tMMX = 1 << 0
static const Type	tMMX2 = 1 << 1
static const Type	tCMOV = 1 << 2
static const Type	tSSE = 1 << 3
static const Type	tSSE2 = 1 << 4
static const Type	tSSE3 = 1 << 5
static const Type	tSSSE3 = 1 << 6
static const Type	tSSE41 = 1 << 7
static const Type	tSSE42 = 1 << 8
static const Type	tPOPCNT = 1 << 9
static const Type	tAESNI = 1 << 10
static const Type	tSSE5 = 1 << 11
static const Type	tOSXSAVE = 1 << 12
static const Type	tPCLMULQDQ = 1 << 13
static const Type	tAVX = 1 << 14
static const Type	tFMA = 1 << 15
static const Type	t3DN = 1 << 16
static const Type	tE3DN = 1 << 17
static const Type	tSSE4a = 1 << 18
static const Type	tRDTSCP = 1 << 19
static const Type	tAVX2 = 1 << 20
static const Type	tBMI1 = 1 << 21
static const Type	tBMI2 = 1 << 22
static const Type	tLZCNT = 1 << 23
static const Type	tINTEL = 1 << 24
static const Type	tAMD = 1 << 25
static const Type	tENHANCED_REP = 1 << 26
static const Type	tRDRAND = 1 << 27
static const Type	tADX = 1 << 28
static const Type	tRDSEED = 1 << 29
static const Type	tSMAP = 1 << 30
static const Type	tHLE = uint64(1) << 31
static const Type	tRTM = uint64(1) << 32
static const Type	tF16C = uint64(1) << 33
static const Type	tMOVBE = uint64(1) << 34
static const Type	tAVX512F = uint64(1) << 35
static const Type	tAVX512DQ = uint64(1) << 36
static const Type	tAVX512_IFMA = uint64(1) << 37
static const Type	tAVX512IFMA = tAVX512_IFMA
static const Type	tAVX512PF = uint64(1) << 38
static const Type	tAVX512ER = uint64(1) << 39
static const Type	tAVX512CD = uint64(1) << 40
static const Type	tAVX512BW = uint64(1) << 41
static const Type	tAVX512VL = uint64(1) << 42
static const Type	tAVX512_VBMI = uint64(1) << 43
static const Type	tAVX512VBMI = tAVX512_VBMI
static const Type	tAVX512_4VNNIW = uint64(1) << 44
static const Type	tAVX512_4FMAPS = uint64(1) << 45
static const Type	tPREFETCHWT1 = uint64(1) << 46
static const Type	tPREFETCHW = uint64(1) << 47
static const Type	tSHA = uint64(1) << 48
static const Type	tMPX = uint64(1) << 49
static const Type	tAVX512_VBMI2 = uint64(1) << 50
static const Type	tGFNI = uint64(1) << 51
static const Type	tVAES = uint64(1) << 52
static const Type	tVPCLMULQDQ = uint64(1) << 53
static const Type	tAVX512_VNNI = uint64(1) << 54
static const Type	tAVX512_BITALG = uint64(1) << 55
static const Type	tAVX512_VPOPCNTDQ = uint64(1) << 56

Detailed Description

CPU detection class

Definition at line 56 of file xbyak_util.h.

Member Typedef Documentation

Type

uint64 Xbyak::util::Cpu::Type

Definition at line 200 of file xbyak_util.h.

Constructor & Destructor Documentation

Cpu()

Xbyak::util::Cpu::Cpu ( )

inline

Definition at line 266 of file xbyak_util.h.

        : type_(NONE)
        , data_cache_levels(0)
    {
        unsigned int data[4];
        const unsigned int& EAX = data[0];
        const unsigned int& EBX = data[1];
        const unsigned int& ECX = data[2];
        const unsigned int& EDX = data[3];
        getCpuid(0, data);
        const unsigned int maxNum = EAX;
        static const char intel[] = "ntel";
        static const char amd[] = "cAMD";
        if (ECX == get32bitAsBE(amd)) {
            type_ |= tAMD;
            getCpuid(0x80000001, data);
            if (EDX & (1U << 31)) type_ |= t3DN;
            if (EDX & (1U << 15)) type_ |= tCMOV;
            if (EDX & (1U << 30)) type_ |= tE3DN;
            if (EDX & (1U << 22)) type_ |= tMMX2;
            if (EDX & (1U << 27)) type_ |= tRDTSCP;
        }
        if (ECX == get32bitAsBE(intel)) {
            type_ |= tINTEL;
            getCpuid(0x80000001, data);
            if (EDX & (1U << 27)) type_ |= tRDTSCP;
            if (ECX & (1U << 5)) type_ |= tLZCNT;
            if (ECX & (1U << 8)) type_ |= tPREFETCHW;
        }
        getCpuid(1, data);
        if (ECX & (1U << 0)) type_ |= tSSE3;
        if (ECX & (1U << 9)) type_ |= tSSSE3;
        if (ECX & (1U << 19)) type_ |= tSSE41;
        if (ECX & (1U << 20)) type_ |= tSSE42;
        if (ECX & (1U << 22)) type_ |= tMOVBE;
        if (ECX & (1U << 23)) type_ |= tPOPCNT;
        if (ECX & (1U << 25)) type_ |= tAESNI;
        if (ECX & (1U << 1)) type_ |= tPCLMULQDQ;
        if (ECX & (1U << 27)) type_ |= tOSXSAVE;
        if (ECX & (1U << 30)) type_ |= tRDRAND;
        if (ECX & (1U << 29)) type_ |= tF16C;
 
        if (EDX & (1U << 15)) type_ |= tCMOV;
        if (EDX & (1U << 23)) type_ |= tMMX;
        if (EDX & (1U << 25)) type_ |= tMMX2 | tSSE;
        if (EDX & (1U << 26)) type_ |= tSSE2;
 
        if (type_ & tOSXSAVE) {
            // check XFEATURE_ENABLED_MASK[2:1] = '11b'
            uint64 bv = getXfeature();
            if ((bv & 6) == 6) {
                if (ECX & (1U << 28)) type_ |= tAVX;
                if (ECX & (1U << 12)) type_ |= tFMA;
                if (((bv >> 5) & 7) == 7) {
                    getCpuidEx(7, 0, data);
                    if (EBX & (1U << 16)) type_ |= tAVX512F;
                    if (type_ & tAVX512F) {
                        if (EBX & (1U << 17)) type_ |= tAVX512DQ;
                        if (EBX & (1U << 21)) type_ |= tAVX512_IFMA;
                        if (EBX & (1U << 26)) type_ |= tAVX512PF;
                        if (EBX & (1U << 27)) type_ |= tAVX512ER;
                        if (EBX & (1U << 28)) type_ |= tAVX512CD;
                        if (EBX & (1U << 30)) type_ |= tAVX512BW;
                        if (EBX & (1U << 31)) type_ |= tAVX512VL;
                        if (ECX & (1U << 1)) type_ |= tAVX512_VBMI;
                        if (ECX & (1U << 6)) type_ |= tAVX512_VBMI2;
                        if (ECX & (1U << 8)) type_ |= tGFNI;
                        if (ECX & (1U << 9)) type_ |= tVAES;
                        if (ECX & (1U << 10)) type_ |= tVPCLMULQDQ;
                        if (ECX & (1U << 11)) type_ |= tAVX512_VNNI;
                        if (ECX & (1U << 12)) type_ |= tAVX512_BITALG;
                        if (ECX & (1U << 14)) type_ |= tAVX512_VPOPCNTDQ;
                        if (EDX & (1U << 2)) type_ |= tAVX512_4VNNIW;
                        if (EDX & (1U << 3)) type_ |= tAVX512_4FMAPS;
                    }
                }
            }
        }
        if (maxNum >= 7) {
            getCpuidEx(7, 0, data);
            if (type_ & tAVX && (EBX & (1U << 5))) type_ |= tAVX2;
            if (EBX & (1U << 3)) type_ |= tBMI1;
            if (EBX & (1U << 8)) type_ |= tBMI2;
            if (EBX & (1U << 9)) type_ |= tENHANCED_REP;
            if (EBX & (1U << 18)) type_ |= tRDSEED;
            if (EBX & (1U << 19)) type_ |= tADX;
            if (EBX & (1U << 20)) type_ |= tSMAP;
            if (EBX & (1U << 4)) type_ |= tHLE;
            if (EBX & (1U << 11)) type_ |= tRTM;
            if (EBX & (1U << 14)) type_ |= tMPX;
            if (EBX & (1U << 29)) type_ |= tSHA;
            if (ECX & (1U << 0)) type_ |= tPREFETCHWT1;
        }
        setFamily();
        setCacheHierarchy();
    }

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Member Function Documentation

getCoresSharingDataCache()

unsigned int Xbyak::util::Cpu::getCoresSharingDataCache ( unsigned int i ) const

inline

Definition at line 158 of file xbyak_util.h.

    {
        if (i >= data_cache_levels) throw  Error(ERR_BAD_PARAMETER);
        return cores_sharing_data_cache[i];
    }

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getCpuid()

static void Xbyak::util::Cpu::getCpuid ( unsigned int eaxIn, unsigned int data[4] )

inlinestatic

Definition at line 172 of file xbyak_util.h.

    {
#ifdef _MSC_VER
        __cpuid(reinterpret_cast<int*>(data), eaxIn);
#else
        __cpuid(eaxIn, data[0], data[1], data[2], data[3]);
#endif
    }

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getCpuidEx()

static void Xbyak::util::Cpu::getCpuidEx ( unsigned int eaxIn, unsigned int ecxIn, unsigned int data[4] )

inlinestatic

Definition at line 180 of file xbyak_util.h.

    {
#ifdef _MSC_VER
        __cpuidex(reinterpret_cast<int*>(data), eaxIn, ecxIn);
#else
        __cpuid_count(eaxIn, ecxIn, data[0], data[1], data[2], data[3]);
#endif
    }

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getDataCacheLevels()

unsigned int Xbyak::util::Cpu::getDataCacheLevels ( ) const

inline

Definition at line 157 of file xbyak_util.h.

{ return data_cache_levels; }

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getDataCacheSize()

unsigned int Xbyak::util::Cpu::getDataCacheSize ( unsigned int i ) const

inline

Definition at line 163 of file xbyak_util.h.

    {
        if (i >= data_cache_levels) throw  Error(ERR_BAD_PARAMETER);
        return data_cache_size[i];
    }

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getXfeature()

static uint64 Xbyak::util::Cpu::getXfeature ( )

inlinestatic

Definition at line 188 of file xbyak_util.h.

    {
#ifdef _MSC_VER
        return _xgetbv(0);
#else
        unsigned int eax, edx;
        // xgetvb is not support on gcc 4.2
//      __asm__ volatile("xgetbv" : "=a"(eax), "=d"(edx) : "c"(0));
        __asm__ volatile(".byte 0x0f, 0x01, 0xd0" : "=a"(eax), "=d"(edx) : "c"(0));
        return ((uint64)edx << 32) | eax;
#endif
    }

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has()

bool Xbyak::util::Cpu::has ( Type type ) const

inline

Definition at line 368 of file xbyak_util.h.

    {
        return (type & type_) != 0;
    }

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putFamily()

void Xbyak::util::Cpu::putFamily ( ) const

inline

Definition at line 362 of file xbyak_util.h.

    {
        printf("family=%d, model=%X, stepping=%d, extFamily=%d, extModel=%X\n",
            family, model, stepping, extFamily, extModel);
        printf("display:family=%X, model=%X\n", displayFamily, displayModel);
    }

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Member Data Documentation

cores_sharing_data_cache

unsigned int Xbyak::util::Cpu::cores_sharing_data_cache[maxNumberCacheLevels]

Definition at line 154 of file xbyak_util.h.

data_cache_levels

unsigned int Xbyak::util::Cpu::data_cache_levels

Definition at line 155 of file xbyak_util.h.

data_cache_size

unsigned int Xbyak::util::Cpu::data_cache_size[maxNumberCacheLevels]

Definition at line 153 of file xbyak_util.h.

displayFamily

int Xbyak::util::Cpu::displayFamily

Definition at line 148 of file xbyak_util.h.

displayModel

int Xbyak::util::Cpu::displayModel

Definition at line 149 of file xbyak_util.h.

extFamily

int Xbyak::util::Cpu::extFamily

Definition at line 147 of file xbyak_util.h.

extModel

int Xbyak::util::Cpu::extModel

Definition at line 146 of file xbyak_util.h.

family

int Xbyak::util::Cpu::family

Definition at line 144 of file xbyak_util.h.

maxNumberCacheLevels

const unsigned int Xbyak::util::Cpu::maxNumberCacheLevels = 10

static

Definition at line 152 of file xbyak_util.h.

model

int Xbyak::util::Cpu::model

Definition at line 143 of file xbyak_util.h.

NONE

const Type Xbyak::util::Cpu::NONE = 0

static

Definition at line 202 of file xbyak_util.h.

stepping

int Xbyak::util::Cpu::stepping

Definition at line 145 of file xbyak_util.h.

t3DN

const Type Xbyak::util::Cpu::t3DN = 1 << 16

static

Definition at line 220 of file xbyak_util.h.

tADX

const Type Xbyak::util::Cpu::tADX = 1 << 28

static

Definition at line 234 of file xbyak_util.h.

tAESNI

const Type Xbyak::util::Cpu::tAESNI = 1 << 10

static

Definition at line 213 of file xbyak_util.h.

tAMD

const Type Xbyak::util::Cpu::tAMD = 1 << 25

static

Definition at line 230 of file xbyak_util.h.

tAVX

const Type Xbyak::util::Cpu::tAVX = 1 << 14

static

Definition at line 217 of file xbyak_util.h.

tAVX2

const Type Xbyak::util::Cpu::tAVX2 = 1 << 20

static

Definition at line 224 of file xbyak_util.h.

tAVX512_4FMAPS

const Type Xbyak::util::Cpu::tAVX512_4FMAPS = uint64(1) << 45

static

Definition at line 253 of file xbyak_util.h.

tAVX512_4VNNIW

const Type Xbyak::util::Cpu::tAVX512_4VNNIW = uint64(1) << 44

static

Definition at line 252 of file xbyak_util.h.

tAVX512_BITALG

const Type Xbyak::util::Cpu::tAVX512_BITALG = uint64(1) << 55

static

Definition at line 263 of file xbyak_util.h.

tAVX512_IFMA

const Type Xbyak::util::Cpu::tAVX512_IFMA = uint64(1) << 37

static

Definition at line 243 of file xbyak_util.h.

tAVX512_VBMI

const Type Xbyak::util::Cpu::tAVX512_VBMI = uint64(1) << 43

static

Definition at line 250 of file xbyak_util.h.

tAVX512_VBMI2

const Type Xbyak::util::Cpu::tAVX512_VBMI2 = uint64(1) << 50

static

Definition at line 258 of file xbyak_util.h.

tAVX512_VNNI

const Type Xbyak::util::Cpu::tAVX512_VNNI = uint64(1) << 54

static

Definition at line 262 of file xbyak_util.h.

tAVX512_VPOPCNTDQ

const Type Xbyak::util::Cpu::tAVX512_VPOPCNTDQ = uint64(1) << 56

static

Definition at line 264 of file xbyak_util.h.

tAVX512BW

const Type Xbyak::util::Cpu::tAVX512BW = uint64(1) << 41

static

Definition at line 248 of file xbyak_util.h.

tAVX512CD

const Type Xbyak::util::Cpu::tAVX512CD = uint64(1) << 40

static

Definition at line 247 of file xbyak_util.h.

tAVX512DQ

const Type Xbyak::util::Cpu::tAVX512DQ = uint64(1) << 36

static

Definition at line 242 of file xbyak_util.h.

tAVX512ER

const Type Xbyak::util::Cpu::tAVX512ER = uint64(1) << 39

static

Definition at line 246 of file xbyak_util.h.

tAVX512F

const Type Xbyak::util::Cpu::tAVX512F = uint64(1) << 35

static

Definition at line 241 of file xbyak_util.h.

tAVX512IFMA

const Type Xbyak::util::Cpu::tAVX512IFMA = tAVX512_IFMA

static

Definition at line 244 of file xbyak_util.h.

tAVX512PF

const Type Xbyak::util::Cpu::tAVX512PF = uint64(1) << 38

static

Definition at line 245 of file xbyak_util.h.

tAVX512VBMI

const Type Xbyak::util::Cpu::tAVX512VBMI = tAVX512_VBMI

static

Definition at line 251 of file xbyak_util.h.

tAVX512VL

const Type Xbyak::util::Cpu::tAVX512VL = uint64(1) << 42

static

Definition at line 249 of file xbyak_util.h.

tBMI1

const Type Xbyak::util::Cpu::tBMI1 = 1 << 21

static

Definition at line 225 of file xbyak_util.h.

tBMI2

const Type Xbyak::util::Cpu::tBMI2 = 1 << 22

static

Definition at line 226 of file xbyak_util.h.

tCMOV

const Type Xbyak::util::Cpu::tCMOV = 1 << 2

static

Definition at line 205 of file xbyak_util.h.

tE3DN

const Type Xbyak::util::Cpu::tE3DN = 1 << 17

static

Definition at line 221 of file xbyak_util.h.

tENHANCED_REP

const Type Xbyak::util::Cpu::tENHANCED_REP = 1 << 26

static

Definition at line 232 of file xbyak_util.h.

tF16C

const Type Xbyak::util::Cpu::tF16C = uint64(1) << 33

static

Definition at line 239 of file xbyak_util.h.

tFMA

const Type Xbyak::util::Cpu::tFMA = 1 << 15

static

Definition at line 218 of file xbyak_util.h.

tGFNI

const Type Xbyak::util::Cpu::tGFNI = uint64(1) << 51

static

Definition at line 259 of file xbyak_util.h.

tHLE

const Type Xbyak::util::Cpu::tHLE = uint64(1) << 31

static

Definition at line 237 of file xbyak_util.h.

tINTEL

const Type Xbyak::util::Cpu::tINTEL = 1 << 24

static

Definition at line 229 of file xbyak_util.h.

tLZCNT

const Type Xbyak::util::Cpu::tLZCNT = 1 << 23

static

Definition at line 227 of file xbyak_util.h.

tMMX

const Type Xbyak::util::Cpu::tMMX = 1 << 0

static

Definition at line 203 of file xbyak_util.h.

tMMX2

const Type Xbyak::util::Cpu::tMMX2 = 1 << 1

static

Definition at line 204 of file xbyak_util.h.

tMOVBE

const Type Xbyak::util::Cpu::tMOVBE = uint64(1) << 34

static

Definition at line 240 of file xbyak_util.h.

tMPX

const Type Xbyak::util::Cpu::tMPX = uint64(1) << 49

static

Definition at line 257 of file xbyak_util.h.

tOSXSAVE

const Type Xbyak::util::Cpu::tOSXSAVE = 1 << 12

static

Definition at line 215 of file xbyak_util.h.

tPCLMULQDQ

const Type Xbyak::util::Cpu::tPCLMULQDQ = 1 << 13

static

Definition at line 216 of file xbyak_util.h.

tPOPCNT

const Type Xbyak::util::Cpu::tPOPCNT = 1 << 9

static

Definition at line 212 of file xbyak_util.h.

tPREFETCHW

const Type Xbyak::util::Cpu::tPREFETCHW = uint64(1) << 47

static

Definition at line 255 of file xbyak_util.h.

tPREFETCHWT1

const Type Xbyak::util::Cpu::tPREFETCHWT1 = uint64(1) << 46

static

Definition at line 254 of file xbyak_util.h.

tRDRAND

const Type Xbyak::util::Cpu::tRDRAND = 1 << 27

static

Definition at line 233 of file xbyak_util.h.

tRDSEED

const Type Xbyak::util::Cpu::tRDSEED = 1 << 29

static

Definition at line 235 of file xbyak_util.h.

tRDTSCP

const Type Xbyak::util::Cpu::tRDTSCP = 1 << 19

static

Definition at line 223 of file xbyak_util.h.

tRTM

const Type Xbyak::util::Cpu::tRTM = uint64(1) << 32

static

Definition at line 238 of file xbyak_util.h.

tSHA

const Type Xbyak::util::Cpu::tSHA = uint64(1) << 48

static

Definition at line 256 of file xbyak_util.h.

tSMAP

const Type Xbyak::util::Cpu::tSMAP = 1 << 30

static

Definition at line 236 of file xbyak_util.h.

tSSE

const Type Xbyak::util::Cpu::tSSE = 1 << 3

static

Definition at line 206 of file xbyak_util.h.

tSSE2

const Type Xbyak::util::Cpu::tSSE2 = 1 << 4

static

Definition at line 207 of file xbyak_util.h.

tSSE3

const Type Xbyak::util::Cpu::tSSE3 = 1 << 5

static

Definition at line 208 of file xbyak_util.h.

tSSE41

const Type Xbyak::util::Cpu::tSSE41 = 1 << 7

static

Definition at line 210 of file xbyak_util.h.

tSSE42

const Type Xbyak::util::Cpu::tSSE42 = 1 << 8

static

Definition at line 211 of file xbyak_util.h.

tSSE4a

const Type Xbyak::util::Cpu::tSSE4a = 1 << 18

static

Definition at line 222 of file xbyak_util.h.

tSSE5

const Type Xbyak::util::Cpu::tSSE5 = 1 << 11

static

Definition at line 214 of file xbyak_util.h.

tSSSE3

const Type Xbyak::util::Cpu::tSSSE3 = 1 << 6

static

Definition at line 209 of file xbyak_util.h.

tVAES

const Type Xbyak::util::Cpu::tVAES = uint64(1) << 52

static

Definition at line 260 of file xbyak_util.h.

tVPCLMULQDQ

const Type Xbyak::util::Cpu::tVPCLMULQDQ = uint64(1) << 53

static

Definition at line 261 of file xbyak_util.h.

---

The documentation for this class was generated from the following file:

• libraries/fc/libraries/ff/depends/xbyak/xbyak/xbyak_util.h