OpenBLAS/cpuid_x86.c

/*********************************************************************/
/* Copyright 2009, 2010 The University of Texas at Austin.           */
/* All rights reserved.                                              */
/*                                                                   */
/* Redistribution and use in source and binary forms, with or        */
/* without modification, are permitted provided that the following   */
/* conditions are met:                                               */
/*                                                                   */
/*   1. Redistributions of source code must retain the above         */
/*      copyright notice, this list of conditions and the following  */
/*      disclaimer.                                                  */
/*                                                                   */
/*   2. 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.                              */
/*                                                                   */
/*    THIS  SOFTWARE IS PROVIDED  BY THE  UNIVERSITY OF  TEXAS AT    */
/*    AUSTIN  ``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 UNIVERSITY  OF TEXAS AT    */
/*    AUSTIN OR CONTRIBUTORS BE  LIABLE FOR ANY DIRECT, INDIRECT,    */
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/*    POSSIBILITY OF SUCH DAMAGE.                                    */
/*                                                                   */
/* The views and conclusions contained in the software and           */
/* documentation are those of the authors and should not be          */
/* interpreted as representing official policies, either expressed   */
/* or implied, of The University of Texas at Austin.                 */
/*********************************************************************/

#include <stdio.h>
#include <string.h>
#include "cpuid.h"

#if defined(_MSC_VER) && !defined(__clang__)
#define C_INLINE __inline
#else
#define C_INLINE inline
#endif

/*
#ifdef NO_AVX
#define CPUTYPE_HASWELL CPUTYPE_NEHALEM
#define CORE_HASWELL CORE_NEHALEM
#define CPUTYPE_SANDYBRIDGE CPUTYPE_NEHALEM
#define CORE_SANDYBRIDGE CORE_NEHALEM
#define CPUTYPE_BULLDOZER CPUTYPE_BARCELONA
#define CORE_BULLDOZER CORE_BARCELONA
#define CPUTYPE_PILEDRIVER CPUTYPE_BARCELONA
#define CORE_PILEDRIVER CORE_BARCELONA
#endif
*/

#if defined(_MSC_VER) && !defined(__clang__)

void cpuid(int op, int *eax, int *ebx, int *ecx, int *edx)
{
  int cpuInfo[4] = {-1};
  __cpuid(cpuInfo, op);
  *eax = cpuInfo[0];
  *ebx = cpuInfo[1];
  *ecx = cpuInfo[2];
  *edx = cpuInfo[3];
}

void cpuid_count(int op, int count, int *eax, int *ebx, int *ecx, int *edx)
{
  int cpuInfo[4] = {-1};
  __cpuidex(cpuInfo, op, count);
  *eax = cpuInfo[0];
  *ebx = cpuInfo[1];
  *ecx = cpuInfo[2];
  *edx = cpuInfo[3];
}

#else

#ifndef CPUIDEMU

#if defined(__APPLE__) && defined(__i386__)
void cpuid(int op, int *eax, int *ebx, int *ecx, int *edx);
void cpuid_count(int op, int count, int *eax, int *ebx, int *ecx, int *edx);
#else
static C_INLINE void cpuid(int op, int *eax, int *ebx, int *ecx, int *edx){
#if defined(__i386__) && defined(__PIC__)
  __asm__ __volatile__
    ("mov %%ebx, %%edi;"
     "cpuid;"
     "xchgl %%ebx, %%edi;"
     : "=a" (*eax), "=D" (*ebx), "=c" (*ecx), "=d" (*edx) : "a" (op) : "cc");
#else
  __asm__ __volatile__
    ("cpuid": "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx) : "a" (op) : "cc");
#endif
}

static C_INLINE void cpuid_count(int op, int count ,int *eax, int *ebx, int *ecx, int *edx){
#if defined(__i386__) && defined(__PIC__)
  __asm__ __volatile__
    ("mov %%ebx, %%edi;"
     "cpuid;"
     "xchgl %%ebx, %%edi;"
     : "=a" (*eax), "=D" (*ebx), "=c" (*ecx), "=d" (*edx) : "0" (op), "2" (count) : "cc");
#else
  __asm__ __volatile__
    ("cpuid": "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx) : "0" (op), "2" (count) : "cc");
#endif
}
#endif

#else

typedef struct {
  unsigned int id, a, b, c, d;
} idlist_t;

typedef struct {
  char *vendor;
  char *name;
  int start, stop;
} vendor_t;

extern idlist_t idlist[];
extern vendor_t vendor[];

static int cv = VENDOR;

void cpuid(unsigned int op, unsigned int *eax, unsigned int *ebx, unsigned int *ecx, unsigned int *edx){

  static int current = 0;

  int start = vendor[cv].start;
  int stop  = vendor[cv].stop;
  int count = stop - start;

  if ((current < start) || (current > stop)) current = start;

  while ((count > 0) && (idlist[current].id != op)) {

    current ++;
    if (current > stop) current = start;
    count --;

  }

  *eax = idlist[current].a;
  *ebx = idlist[current].b;
  *ecx = idlist[current].c;
  *edx = idlist[current].d;
}

void cpuid_count (unsigned int op, unsigned int count, unsigned int *eax, unsigned int *ebx, unsigned int *ecx, unsigned int *edx) {
  return cpuid (op, eax, ebx, ecx, edx);
}

#endif

#endif // _MSC_VER

static C_INLINE int have_cpuid(void){
  int eax, ebx, ecx, edx;

  cpuid(0, &eax, &ebx, &ecx, &edx);
  return eax;
}

static C_INLINE int have_excpuid(void){
  int eax, ebx, ecx, edx;

  cpuid(0x80000000, &eax, &ebx, &ecx, &edx);
  return eax & 0xffff;
}

#ifndef NO_AVX
static C_INLINE void xgetbv(int op, int * eax, int * edx){
  //Use binary code for xgetbv
#if defined(_MSC_VER) && !defined(__clang__)
  *eax = __xgetbv(op);
#else
  __asm__ __volatile__
    (".byte 0x0f, 0x01, 0xd0": "=a" (*eax), "=d" (*edx) : "c" (op) : "cc");
#endif
}
#endif

int support_avx(){
#ifndef NO_AVX
  int eax, ebx, ecx, edx;
  int ret=0;

  cpuid(1, &eax, &ebx, &ecx, &edx);
  if ((ecx & (1 << 28)) != 0 && (ecx & (1 << 27)) != 0 && (ecx & (1 << 26)) != 0){
    xgetbv(0, &eax, &edx);
    if((eax & 6) == 6){
      ret=1;  //OS support AVX
    }
  }
  return ret;
#else
  return 0;
#endif
}


int get_vendor(void){
  int eax, ebx, ecx, edx;
  char vendor[13];

  cpuid(0, &eax, &ebx, &ecx, &edx);

  *(int *)(&vendor[0]) = ebx;
  *(int *)(&vendor[4]) = edx;
  *(int *)(&vendor[8]) = ecx;
  vendor[12] = (char)0;

  if (!strcmp(vendor, "GenuineIntel")) return VENDOR_INTEL;
  if (!strcmp(vendor, " UMC UMC UMC")) return VENDOR_UMC;
  if (!strcmp(vendor, "AuthenticAMD")) return VENDOR_AMD;
  if (!strcmp(vendor, "CyrixInstead")) return VENDOR_CYRIX;
  if (!strcmp(vendor, "NexGenDriven")) return VENDOR_NEXGEN;
  if (!strcmp(vendor, "CentaurHauls")) return VENDOR_CENTAUR;
  if (!strcmp(vendor, "RiseRiseRise")) return VENDOR_RISE;
  if (!strcmp(vendor, " SiS SiS SiS")) return VENDOR_SIS;
  if (!strcmp(vendor, "GenuineTMx86")) return VENDOR_TRANSMETA;
  if (!strcmp(vendor, "Geode by NSC")) return VENDOR_NSC;

  if ((eax == 0) || ((eax & 0x500) != 0)) return VENDOR_INTEL;

  return VENDOR_UNKNOWN;
}

int get_cputype(int gettype){
  int eax, ebx, ecx, edx;
  int extend_family, family;
  int extend_model, model;
  int type, stepping;
  int feature = 0;

  cpuid(1, &eax, &ebx, &ecx, &edx);

  switch (gettype) {
  case GET_EXFAMILY :
    return BITMASK(eax, 20, 0xff);
  case GET_EXMODEL :
    return BITMASK(eax, 16, 0x0f);
  case GET_TYPE :
    return BITMASK(eax, 12, 0x03);
  case GET_FAMILY :
    return BITMASK(eax,  8, 0x0f);
  case GET_MODEL :
    return BITMASK(eax,  4, 0x0f);
  case GET_APICID :
    return BITMASK(ebx, 24, 0x0f);
  case GET_LCOUNT :
    return BITMASK(ebx, 16, 0x0f);
  case GET_CHUNKS :
    return BITMASK(ebx,  8, 0x0f);
  case GET_STEPPING :
    return BITMASK(eax,  0, 0x0f);
  case GET_BLANDID :
    return BITMASK(ebx,  0, 0xff);
  case GET_NUMSHARE :
    if (have_cpuid() < 4) return 0;
    cpuid(4, &eax, &ebx, &ecx, &edx);
    return BITMASK(eax, 14, 0xfff);
  case GET_NUMCORES :
    if (have_cpuid() < 4) return 0;
    cpuid(4, &eax, &ebx, &ecx, &edx);
    return BITMASK(eax, 26, 0x3f);

  case GET_FEATURE :
    if ((edx & (1 <<  3)) != 0) feature |= HAVE_PSE;
    if ((edx & (1 << 15)) != 0) feature |= HAVE_CMOV;
    if ((edx & (1 << 19)) != 0) feature |= HAVE_CFLUSH;
    if ((edx & (1 << 23)) != 0) feature |= HAVE_MMX;
    if ((edx & (1 << 25)) != 0) feature |= HAVE_SSE;
    if ((edx & (1 << 26)) != 0) feature |= HAVE_SSE2;
    if ((edx & (1 << 27)) != 0) {
      if (BITMASK(ebx, 16, 0x0f) > 0) feature |= HAVE_HIT;
    }
    if ((ecx & (1 <<  0)) != 0) feature |= HAVE_SSE3;
    if ((ecx & (1 <<  9)) != 0) feature |= HAVE_SSSE3;
    if ((ecx & (1 << 19)) != 0) feature |= HAVE_SSE4_1;
    if ((ecx & (1 << 20)) != 0) feature |= HAVE_SSE4_2;
#ifndef NO_AVX
    if (support_avx()) feature |= HAVE_AVX;
    if ((ecx & (1 << 12)) != 0) feature |= HAVE_FMA3;
#endif

    if (have_excpuid() >= 0x01) {
      cpuid(0x80000001, &eax, &ebx, &ecx, &edx);
      if ((ecx & (1 <<  6)) != 0) feature |= HAVE_SSE4A;
      if ((ecx & (1 <<  7)) != 0) feature |= HAVE_MISALIGNSSE;
#ifndef NO_AVX
      if ((ecx & (1 <<  16)) != 0) feature |= HAVE_FMA4;
#endif
      if ((edx & (1 << 30)) != 0) feature |= HAVE_3DNOWEX;
      if ((edx & (1 << 31)) != 0) feature |= HAVE_3DNOW;
    }

    if (have_excpuid() >= 0x1a) {
      cpuid(0x8000001a, &eax, &ebx, &ecx, &edx);
      if ((eax & (1 <<  0)) != 0) feature |= HAVE_128BITFPU;
      if ((eax & (1 <<  1)) != 0) feature |= HAVE_FASTMOVU;
    }

  }
  return feature;
}

int get_cacheinfo(int type, cache_info_t *cacheinfo){
  int eax, ebx, ecx, edx, cpuid_level;
  int info[15];
  int i;
  cache_info_t LC1, LD1, L2, L3,
    ITB, DTB, LITB, LDTB,
    L2ITB, L2DTB, L2LITB, L2LDTB;

  LC1.size    = 0; LC1.associative = 0; LC1.linesize = 0; LC1.shared = 0;
  LD1.size    = 0; LD1.associative    = 0; LD1.linesize    = 0; LD1.shared    = 0;
  L2.size     = 0; L2.associative     = 0; L2.linesize     = 0; L2.shared     = 0;
  L3.size     = 0; L3.associative     = 0; L3.linesize     = 0; L3.shared     = 0;
  ITB.size    = 0; ITB.associative    = 0; ITB.linesize    = 0; ITB.shared    = 0;
  DTB.size    = 0; DTB.associative    = 0; DTB.linesize    = 0; DTB.shared    = 0;
  LITB.size   = 0; LITB.associative   = 0; LITB.linesize   = 0; LITB.shared   = 0;
  LDTB.size   = 0; LDTB.associative   = 0; LDTB.linesize   = 0; LDTB.shared   = 0;
  L2ITB.size  = 0; L2ITB.associative  = 0; L2ITB.linesize  = 0; L2ITB.shared  = 0;
  L2DTB.size  = 0; L2DTB.associative  = 0; L2DTB.linesize  = 0; L2DTB.shared  = 0;
  L2LITB.size = 0; L2LITB.associative = 0; L2LITB.linesize = 0; L2LITB.shared = 0;
  L2LDTB.size = 0; L2LDTB.associative = 0; L2LDTB.linesize = 0; L2LDTB.shared = 0;

  cpuid(0, &cpuid_level, &ebx, &ecx, &edx);

  if (cpuid_level > 1) {
    int numcalls =0 ;
    cpuid(2, &eax, &ebx, &ecx, &edx);
    numcalls = BITMASK(eax, 0, 0xff); //FIXME some systems may require repeated calls to read all entries
    info[ 0] = BITMASK(eax,  8, 0xff);
    info[ 1] = BITMASK(eax, 16, 0xff);
    info[ 2] = BITMASK(eax, 24, 0xff);

    info[ 3] = BITMASK(ebx,  0, 0xff);
    info[ 4] = BITMASK(ebx,  8, 0xff);
    info[ 5] = BITMASK(ebx, 16, 0xff);
    info[ 6] = BITMASK(ebx, 24, 0xff);

    info[ 7] = BITMASK(ecx,  0, 0xff);
    info[ 8] = BITMASK(ecx,  8, 0xff);
    info[ 9] = BITMASK(ecx, 16, 0xff);
    info[10] = BITMASK(ecx, 24, 0xff);

    info[11] = BITMASK(edx,  0, 0xff);
    info[12] = BITMASK(edx,  8, 0xff);
    info[13] = BITMASK(edx, 16, 0xff);
    info[14] = BITMASK(edx, 24, 0xff);

    for (i = 0; i < 15; i++){
      switch (info[i]){

	/* This table is from http://www.sandpile.org/ia32/cpuid.htm */

      case 0x01 :
	ITB.size        =     4;
	ITB.associative =     4;
	ITB.linesize     =   32;
	break;
      case 0x02 :
	LITB.size        = 4096;
	LITB.associative =    0;
	LITB.linesize    =    2;
	break;
      case 0x03 :
	DTB.size        =     4;
	DTB.associative =     4;
	DTB.linesize     =   64;
	break;
      case 0x04 :
	LDTB.size        = 4096;
	LDTB.associative =    4;
	LDTB.linesize    =    8;
	break;
      case 0x05 :
	LDTB.size        = 4096;
	LDTB.associative =    4;
	LDTB.linesize    =   32;
	break;
      case 0x06 :
	LC1.size        = 8;
	LC1.associative = 4;
	LC1.linesize    = 32;
	break;
      case 0x08 :
	LC1.size        = 16;
	LC1.associative = 4;
	LC1.linesize    = 32;
	break;
      case 0x09 :
	LC1.size        = 32;
	LC1.associative = 4;
	LC1.linesize    = 64;
	break;
      case 0x0a :
	LD1.size        = 8;
	LD1.associative = 2;
	LD1.linesize    = 32;
	break;
      case 0x0c :
	LD1.size        = 16;
	LD1.associative = 4;
	LD1.linesize    = 32;
	break;
      case 0x0d :
	LD1.size        = 16;
	LD1.associative = 4;
	LD1.linesize    = 64;
	break;
      case 0x0e :
	LD1.size        = 24;
	LD1.associative = 6;
	LD1.linesize    = 64;
	break;
      case 0x10 :
	LD1.size        = 16;
	LD1.associative = 4;
	LD1.linesize    = 32;
	break;
      case 0x15 :
	LC1.size        = 16;
	LC1.associative = 4;
	LC1.linesize    = 32;
	break;
      case 0x1a :
	L2.size         = 96;
	L2.associative  = 6;
	L2.linesize     = 64;
	break;
      case 0x21 :
	L2.size         = 256;
	L2.associative  = 8;
	L2.linesize     = 64;
	break;
      case 0x22 :
	L3.size         = 512;
	L3.associative  = 4;
	L3.linesize     = 64;
	break;
      case 0x23 :
	L3.size         = 1024;
	L3.associative  = 8;
	L3.linesize     = 64;
	break;
      case 0x25 :
	L3.size         = 2048;
	L3.associative  = 8;
	L3.linesize     = 64;
	break;
      case 0x29 :
	L3.size         = 4096;
	L3.associative  = 8;
	L3.linesize     = 64;
	break;
      case 0x2c :
	LD1.size        = 32;
	LD1.associative = 8;
	LD1.linesize    = 64;
	break;
      case 0x30 :
	LC1.size        = 32;
	LC1.associative = 8;
	LC1.linesize    = 64;
	break;
      case 0x39 :
	L2.size         = 128;
	L2.associative  = 4;
	L2.linesize     = 64;
	break;
      case 0x3a :
	L2.size         = 192;
	L2.associative  = 6;
	L2.linesize     = 64;
	break;
      case 0x3b :
	L2.size         = 128;
	L2.associative  = 2;
	L2.linesize     = 64;
	break;
      case 0x3c :
	L2.size         = 256;
	L2.associative  = 4;
	L2.linesize     = 64;
	break;
      case 0x3d :
	L2.size         = 384;
	L2.associative  = 6;
	L2.linesize     = 64;
	break;
      case 0x3e :
	L2.size         = 512;
	L2.associative  = 4;
	L2.linesize     = 64;
	break;
      case 0x41 :
	L2.size         = 128;
	L2.associative  = 4;
	L2.linesize     = 32;
	break;
      case 0x42 :
	L2.size         = 256;
	L2.associative  = 4;
	L2.linesize     = 32;
	break;
      case 0x43 :
	L2.size         = 512;
	L2.associative  = 4;
	L2.linesize     = 32;
	break;
      case 0x44 :
	L2.size         = 1024;
	L2.associative  = 4;
	L2.linesize     = 32;
	break;
      case 0x45 :
	L2.size         = 2048;
	L2.associative  = 4;
	L2.linesize     = 32;
	break;
      case 0x46 :
	L3.size         = 4096;
	L3.associative  = 4;
	L3.linesize     = 64;
	break;
      case 0x47 :
	L3.size         = 8192;
	L3.associative  = 8;
	L3.linesize     = 64;
	break;
      case 0x48 :
	L2.size         = 3184;
	L2.associative  = 12;
	L2.linesize     = 64;
	break;
      case 0x49 :
	if ((get_cputype(GET_FAMILY) == 0x0f) && (get_cputype(GET_MODEL) == 0x06)) {
	  L3.size         = 4096;
	  L3.associative  = 16;
	  L3.linesize     = 64;
	} else {
	  L2.size         = 4096;
	  L2.associative  = 16;
	  L2.linesize     = 64;
	}
	break;
      case 0x4a :
	L3.size         = 6144;
	L3.associative  = 12;
	L3.linesize     = 64;
	break;
      case 0x4b :
	L3.size         = 8192;
	L3.associative  = 16;
	L3.linesize     = 64;
	break;
      case 0x4c :
	L3.size         = 12280;
	L3.associative  = 12;
	L3.linesize     = 64;
	break;
      case 0x4d :
	L3.size         = 16384;
	L3.associative  = 16;
	L3.linesize     = 64;
	break;
      case 0x4e :
	L2.size         = 6144;
	L2.associative  = 24;
	L2.linesize     = 64;
	break;
      case 0x4f :
	ITB.size         = 4;
	ITB.associative  = 0;
	ITB.linesize     = 32;
	break;
      case 0x50 :
	ITB.size         = 4;
	ITB.associative  = 0;
	ITB.linesize     = 64;
	LITB.size        = 4096;
	LITB.associative = 0;
	LITB.linesize    = 64;
	LITB.shared      = 1;
	break;
      case 0x51 :
	ITB.size        = 4;
	ITB.associative = 0;
	ITB.linesize     = 128;
	LITB.size        = 4096;
	LITB.associative = 0;
	LITB.linesize    = 128;
	LITB.shared      = 1;
	break;
      case 0x52 :
	ITB.size         = 4;
	ITB.associative  = 0;
	ITB.linesize     = 256;
	LITB.size        = 4096;
	LITB.associative = 0;
	LITB.linesize    = 256;
	LITB.shared      = 1;
	break;
      case 0x55 :
	LITB.size        = 4096;
	LITB.associative = 0;
	LITB.linesize    = 7;
	LITB.shared      = 1;
	break;
      case 0x56 :
	LDTB.size        = 4096;
	LDTB.associative = 4;
	LDTB.linesize    = 16;
	break;
      case 0x57 :
	LDTB.size        = 4096;
	LDTB.associative = 4;
	LDTB.linesize    = 16;
	break;
      case 0x5b :
	DTB.size         = 4;
	DTB.associative  = 0;
	DTB.linesize     = 64;
	LDTB.size        = 4096;
	LDTB.associative = 0;
	LDTB.linesize    = 64;
	LDTB.shared      = 1;
	break;
      case 0x5c :
	DTB.size         = 4;
	DTB.associative  = 0;
	DTB.linesize     = 128;
	LDTB.size        = 4096;
	LDTB.associative = 0;
	LDTB.linesize    = 128;
	LDTB.shared      = 1;
	break;
      case 0x5d :
	DTB.size         = 4;
	DTB.associative  = 0;
	DTB.linesize     = 256;
	LDTB.size        = 4096;
	LDTB.associative = 0;
	LDTB.linesize    = 256;
	LDTB.shared      = 1;
	break;
      case 0x60 :
	LD1.size        = 16;
	LD1.associative = 8;
	LD1.linesize    = 64;
	break;
      case 0x63 :
  	DTB.size        = 2048;
  	DTB.associative = 4;
  	DTB.linesize    = 32;
  	LDTB.size       = 4096;
  	LDTB.associative= 4;
  	LDTB.linesize   = 32;
	break;
      case 0x66 :
	LD1.size        = 8;
	LD1.associative = 4;
	LD1.linesize    = 64;
	break;
      case 0x67 :
	LD1.size        = 16;
	LD1.associative = 4;
	LD1.linesize    = 64;
	break;
      case 0x68 :
	LD1.size        = 32;
	LD1.associative = 4;
	LD1.linesize    = 64;
	break;
      case 0x70 :
	LC1.size        = 12;
	LC1.associative = 8;
	break;
      case 0x71 :
	LC1.size        = 16;
	LC1.associative = 8;
	break;
      case 0x72 :
	LC1.size        = 32;
	LC1.associative = 8;
	break;
      case 0x73 :
	LC1.size        = 64;
	LC1.associative = 8;
	break;
      case 0x76 :
  	ITB.size        = 2048;
  	ITB.associative = 0;
  	ITB.linesize    = 8;
  	LITB.size       = 4096;
  	LITB.associative= 0;
  	LITB.linesize   = 8;
	break;
      case 0x77 :
	LC1.size        = 16;
	LC1.associative = 4;
	LC1.linesize    = 64;
	break;
      case 0x78 :
	L2.size        = 1024;
	L2.associative = 4;
	L2.linesize    = 64;
	break;
      case 0x79 :
	L2.size         = 128;
	L2.associative  = 8;
	L2.linesize     = 64;
	break;
      case 0x7a :
	L2.size         = 256;
	L2.associative  = 8;
	L2.linesize     = 64;
	break;
      case 0x7b :
	L2.size         = 512;
	L2.associative  = 8;
	L2.linesize     = 64;
	break;
      case 0x7c :
	L2.size         = 1024;
	L2.associative  = 8;
	L2.linesize     = 64;
	break;
      case 0x7d :
	L2.size         = 2048;
	L2.associative  = 8;
	L2.linesize     = 64;
	break;
      case 0x7e :
	L2.size         = 256;
	L2.associative  = 8;
	L2.linesize     = 128;
	break;
      case 0x7f :
	L2.size         = 512;
	L2.associative  = 2;
	L2.linesize     = 64;
	break;
      case 0x81 :
	L2.size         = 128;
	L2.associative  = 8;
	L2.linesize     = 32;
	break;
      case 0x82 :
	L2.size         = 256;
	L2.associative  = 8;
	L2.linesize     = 32;
	break;
      case 0x83 :
	L2.size         = 512;
	L2.associative  = 8;
	L2.linesize     = 32;
	break;
      case 0x84 :
	L2.size         = 1024;
	L2.associative  = 8;
	L2.linesize     = 32;
	break;
      case 0x85 :
	L2.size         = 2048;
	L2.associative  = 8;
	L2.linesize     = 32;
	break;
      case 0x86 :
	L2.size         = 512;
	L2.associative  = 4;
	L2.linesize     = 64;
	break;
      case 0x87 :
	L2.size         = 1024;
	L2.associative  = 8;
	L2.linesize     = 64;
	break;
      case 0x88 :
	L3.size         = 2048;
	L3.associative  = 4;
	L3.linesize     = 64;
	break;
      case 0x89 :
	L3.size         = 4096;
	L3.associative  = 4;
	L3.linesize     = 64;
	break;
      case 0x8a :
	L3.size         = 8192;
	L3.associative  = 4;
	L3.linesize     = 64;
	break;
      case 0x8d :
	L3.size         = 3096;
	L3.associative  = 12;
	L3.linesize     = 128;
	break;
      case 0x90 :
	ITB.size        = 4;
	ITB.associative = 0;
	ITB.linesize    = 64;
	break;
      case 0x96 :
	DTB.size        = 4;
	DTB.associative = 0;
	DTB.linesize    = 32;
	break;
      case 0x9b :
	L2DTB.size        = 4;
	L2DTB.associative = 0;
	L2DTB.linesize    = 96;
	break;
      case 0xb0 :
	ITB.size        = 4;
	ITB.associative = 4;
	ITB.linesize    = 128;
	break;
      case 0xb1 :
	LITB.size        = 4096;
	LITB.associative = 4;
	LITB.linesize    = 4;
	break;
      case 0xb2 :
	ITB.size        = 4;
	ITB.associative = 4;
	ITB.linesize    = 64;
	break;
      case 0xb3 :
	DTB.size        = 4;
	DTB.associative = 4;
	DTB.linesize    = 128;
	break;
      case 0xb4 :
	DTB.size        = 4;
	DTB.associative = 4;
	DTB.linesize    = 256;
	break;
      case 0xba :
	DTB.size        = 4;
	DTB.associative = 4;
	DTB.linesize    = 64;
	break;
      case 0xd0 :
	L3.size         = 512;
	L3.associative  = 4;
	L3.linesize     = 64;
	break;
      case 0xd1 :
	L3.size         = 1024;
	L3.associative  = 4;
	L3.linesize     = 64;
	break;
      case 0xd2 :
	L3.size         = 2048;
	L3.associative  = 4;
	L3.linesize     = 64;
	break;
      case 0xd6 :
	L3.size         = 1024;
	L3.associative  = 8;
	L3.linesize     = 64;
	break;
      case 0xd7 :
	L3.size         = 2048;
	L3.associative  = 8;
	L3.linesize     = 64;
	break;
      case 0xd8 :
	L3.size         = 4096;
	L3.associative  = 8;
	L3.linesize     = 64;
	break;
      case 0xdc :
	L3.size         = 2048;
	L3.associative  = 12;
	L3.linesize     = 64;
	break;
      case 0xdd :
	L3.size         = 4096;
	L3.associative  = 12;
	L3.linesize     = 64;
	break;
      case 0xde :
	L3.size         = 8192;
	L3.associative  = 12;
	L3.linesize     = 64;
	break;
      case 0xe2 :
	L3.size         = 2048;
	L3.associative  = 16;
	L3.linesize     = 64;
	break;
      case 0xe3 :
	L3.size         = 4096;
	L3.associative  = 16;
	L3.linesize     = 64;
	break;
      case 0xe4 :
	L3.size         = 8192;
	L3.associative  = 16;
	L3.linesize     = 64;
	break;
      }
    }
  }

  if (get_vendor() == VENDOR_INTEL) {
      if(LD1.size<=0 || LC1.size<=0){
	//If we didn't detect L1 correctly before,
	int count;
	for (count=0;count <4;count++) {
	cpuid_count(4, count, &eax, &ebx, &ecx, &edx);
        switch (eax &0x1f) {
        case 0:
          continue;
          case 1:
          case 3:
          {
            switch ((eax >>5) &0x07)
            {
            case 1:
            {
//            fprintf(stderr,"L1 data cache...\n");
            int sets = ecx+1;
            int lines = (ebx & 0x0fff) +1;
            ebx>>=12;
            int part = (ebx&0x03ff)+1;
            ebx >>=10;
            int assoc = (ebx&0x03ff)+1;
            LD1.size = (assoc*part*lines*sets)/1024;
            LD1.associative = assoc;
            LD1.linesize= lines;
            break;
            }
            default: 
              break;
           }
          break;
          }
         case 2:
          {
            switch ((eax >>5) &0x07)
            {
            case 1:
            {
//            fprintf(stderr,"L1 instruction cache...\n");
            int sets = ecx+1;
            int lines = (ebx & 0x0fff) +1;
            ebx>>=12;
            int part = (ebx&0x03ff)+1;
            ebx >>=10;
            int assoc = (ebx&0x03ff)+1;
            LC1.size = (assoc*part*lines*sets)/1024;
            LC1.associative = assoc;
            LC1.linesize= lines;
            break;
            }
            default: 
              break;
           }
          break;
          
          }
          default:
          break;
        }
      }
    }
    cpuid(0x80000000, &cpuid_level, &ebx, &ecx, &edx);
    if (cpuid_level >= 0x80000006) {
      if(L2.size<=0){
	//If we didn't detect L2 correctly before,
	cpuid(0x80000006, &eax, &ebx, &ecx, &edx);

	L2.size         = BITMASK(ecx, 16, 0xffff);
	L2.associative  = BITMASK(ecx, 12, 0x0f);

	switch (L2.associative){
	case 0x06:
	  L2.associative = 8;
	  break;
	case 0x08:
	  L2.associative = 16;
	  break;
	}

	L2.linesize     = BITMASK(ecx,  0, 0xff);
      }
    }
  }

  if ((get_vendor() == VENDOR_AMD) || (get_vendor() == VENDOR_CENTAUR)) {
    cpuid(0x80000005, &eax, &ebx, &ecx, &edx);

    LDTB.size        = 4096;
    LDTB.associative = BITMASK(eax, 24, 0xff);
    if (LDTB.associative == 0xff) LDTB.associative = 0;
    LDTB.linesize    = BITMASK(eax, 16, 0xff);

    LITB.size        = 4096;
    LITB.associative = BITMASK(eax,  8, 0xff);
    if (LITB.associative == 0xff) LITB.associative = 0;
    LITB.linesize    = BITMASK(eax,  0, 0xff);

    DTB.size        = 4;
    DTB.associative = BITMASK(ebx, 24, 0xff);
    if (DTB.associative == 0xff) DTB.associative = 0;
    DTB.linesize    = BITMASK(ebx, 16, 0xff);

    ITB.size        = 4;
    ITB.associative = BITMASK(ebx,  8, 0xff);
    if (ITB.associative == 0xff) ITB.associative = 0;
    ITB.linesize    = BITMASK(ebx,  0, 0xff);

    LD1.size        = BITMASK(ecx, 24, 0xff);
    LD1.associative = BITMASK(ecx, 16, 0xff);
    if (LD1.associative == 0xff) LD1.associative = 0;
    LD1.linesize    = BITMASK(ecx,  0, 0xff);

    LC1.size        = BITMASK(ecx, 24, 0xff);
    LC1.associative = BITMASK(ecx, 16, 0xff);
    if (LC1.associative == 0xff) LC1.associative = 0;
    LC1.linesize    = BITMASK(ecx,  0, 0xff);

    cpuid(0x80000006, &eax, &ebx, &ecx, &edx);

    L2LDTB.size        = 4096;
    L2LDTB.associative = BITMASK(eax, 24, 0xff);
    if (L2LDTB.associative == 0xff) L2LDTB.associative = 0;
    L2LDTB.linesize    = BITMASK(eax, 16, 0xff);

    L2LITB.size        = 4096;
    L2LITB.associative = BITMASK(eax,  8, 0xff);
    if (L2LITB.associative == 0xff) L2LITB.associative = 0;
    L2LITB.linesize    = BITMASK(eax,  0, 0xff);

    L2DTB.size        = 4;
    L2DTB.associative = BITMASK(ebx, 24, 0xff);
    if (L2DTB.associative == 0xff) L2DTB.associative = 0;
    L2DTB.linesize    = BITMASK(ebx, 16, 0xff);

    L2ITB.size        = 4;
    L2ITB.associative = BITMASK(ebx,  8, 0xff);
    if (L2ITB.associative == 0xff) L2ITB.associative = 0;
    L2ITB.linesize    = BITMASK(ebx,  0, 0xff);

    if(L2.size <= 0){
      //If we didn't detect L2 correctly before,
      L2.size        = BITMASK(ecx, 16, 0xffff);
      L2.associative = BITMASK(ecx, 12, 0xf);
      switch (L2.associative){
      case 0x06:
	L2.associative = 8;
	break;
      case 0x08:
	L2.associative = 16;
	break;
      }

      if (L2.associative == 0xff) L2.associative = 0;
      L2.linesize    = BITMASK(ecx,  0, 0xff);
    }

    L3.size        = BITMASK(edx, 18, 0x3fff) * 512;
    L3.associative = BITMASK(edx, 12, 0xf);
    if (L3.associative == 0xff) L2.associative = 0;
    L3.linesize    = BITMASK(edx,  0, 0xff);

  }

    switch (type) {

    case CACHE_INFO_L1_I :
      *cacheinfo = LC1;
      break;
    case CACHE_INFO_L1_D :
      *cacheinfo = LD1;
      break;
    case CACHE_INFO_L2 :
      *cacheinfo = L2;
      break;
    case CACHE_INFO_L3 :
      *cacheinfo = L3;
      break;
    case CACHE_INFO_L1_DTB :
      *cacheinfo = DTB;
      break;
    case CACHE_INFO_L1_ITB :
      *cacheinfo = ITB;
      break;
    case CACHE_INFO_L1_LDTB :
      *cacheinfo = LDTB;
      break;
    case CACHE_INFO_L1_LITB :
      *cacheinfo = LITB;
      break;
    case CACHE_INFO_L2_DTB :
      *cacheinfo = L2DTB;
      break;
    case CACHE_INFO_L2_ITB :
      *cacheinfo = L2ITB;
      break;
    case CACHE_INFO_L2_LDTB :
      *cacheinfo = L2LDTB;
      break;
    case CACHE_INFO_L2_LITB :
      *cacheinfo = L2LITB;
      break;
    }
  return 0;
}

int get_cpuname(void){

  int family, exfamily, model, vendor, exmodel;

  if (!have_cpuid()) return CPUTYPE_80386;

  family   = get_cputype(GET_FAMILY);
  exfamily = get_cputype(GET_EXFAMILY);
  model    = get_cputype(GET_MODEL);
  exmodel  = get_cputype(GET_EXMODEL);

  vendor = get_vendor();

  if (vendor == VENDOR_INTEL){
    switch (family) {
    case 0x4:
      return CPUTYPE_80486;
    case 0x5:
      return CPUTYPE_PENTIUM;
    case 0x6:
      switch (exmodel) {
      case 0:
	switch (model) {
	case  1:
	case  3:
	case  5:
	case  6:
	  return CPUTYPE_PENTIUM2;
	case  7:
	case  8:
	case 10:
	case 11:
	  return CPUTYPE_PENTIUM3;
	case  9:
	case 13:
	case 14:
	  return CPUTYPE_PENTIUMM;
	case 15:
	  return CPUTYPE_CORE2;
	}
	break;
      case 1:
	switch (model) {
	case  6:
	  return CPUTYPE_CORE2;
	case  7:
	  return CPUTYPE_PENRYN;
	case 10:
	case 11:
	case 14:
	case 15:
	  return CPUTYPE_NEHALEM;
	case 12:
	  return CPUTYPE_ATOM;
	case 13:
	  return CPUTYPE_DUNNINGTON;
	}
	break;
      case  2:
	switch (model) {
	case 5:
	  //Intel Core (Clarkdale) / Core (Arrandale)
	  // Pentium (Clarkdale) / Pentium Mobile (Arrandale)
	  // Xeon (Clarkdale), 32nm
	  return CPUTYPE_NEHALEM;
	case 10:
	  //Intel Core i5-2000 /i7-2000 (Sandy Bridge)
	  if(support_avx())
	    return CPUTYPE_SANDYBRIDGE;
	  else
	    return CPUTYPE_NEHALEM; //OS doesn't support AVX
	case 12:
	  //Xeon Processor 5600 (Westmere-EP)
	  return CPUTYPE_NEHALEM;
	case 13:
	  //Intel Core i7-3000 / Xeon E5 (Sandy Bridge)
	  if(support_avx())
	    return CPUTYPE_SANDYBRIDGE;
	  else
	    return CPUTYPE_NEHALEM;
	case 14:
	  // Xeon E7540
	case 15:
	  //Xeon Processor E7 (Westmere-EX)
	  return CPUTYPE_NEHALEM;
	}
	break;
      case 3:
	switch (model) {
	case  7:
	    // Bay Trail	
	    return CPUTYPE_ATOM;	
	case 10:
        case 14:
	  // Ivy Bridge
	  if(support_avx())
	    return CPUTYPE_SANDYBRIDGE;
	  else
	    return CPUTYPE_NEHALEM;
        case 12:
	case 15:
          if(support_avx())
#ifndef NO_AVX2
            return CPUTYPE_HASWELL;
#else
	    return CPUTYPE_SANDYBRIDGE;
#endif
          else
	    return CPUTYPE_NEHALEM;
	case 13:
	  //Broadwell
          if(support_avx())
#ifndef NO_AVX2
            return CPUTYPE_HASWELL;
#else
	    return CPUTYPE_SANDYBRIDGE;
#endif
          else
	    return CPUTYPE_NEHALEM;
	}
	break;
      case 4:
        switch (model) {
        case 5:
	case 6:
          if(support_avx())
#ifndef NO_AVX2
            return CPUTYPE_HASWELL;
#else
	    return CPUTYPE_SANDYBRIDGE;
#endif
          else
	    return CPUTYPE_NEHALEM;
	case 7:
	case 15:
	  //Broadwell
          if(support_avx())
#ifndef NO_AVX2
            return CPUTYPE_HASWELL;
#else
	    return CPUTYPE_SANDYBRIDGE;
#endif
          else
	    return CPUTYPE_NEHALEM;
	case 14:
	  //Skylake
          if(support_avx())
#ifndef NO_AVX2
            return CPUTYPE_HASWELL;
#else
	    return CPUTYPE_SANDYBRIDGE;
#endif
          else
	    return CPUTYPE_NEHALEM;
	case 12:
	  // Braswell
	case 13:
	  // Avoton
	    return CPUTYPE_NEHALEM;
        }
        break;
      case 5:
        switch (model) {
	case 6:
	  //Broadwell
          if(support_avx())
#ifndef NO_AVX2
            return CPUTYPE_HASWELL;
#else
	    return CPUTYPE_SANDYBRIDGE;
#endif
          else
	    return CPUTYPE_NEHALEM;
	case 5:
        case 14:
	  // Skylake
          if(support_avx())
#ifndef NO_AVX2
            return CPUTYPE_HASWELL;
#else
	    return CPUTYPE_SANDYBRIDGE;
#endif
          else
	    return CPUTYPE_NEHALEM;
	case 7:
	    // Xeon Phi Knights Landing
          if(support_avx())
#ifndef NO_AVX2
            return CPUTYPE_HASWELL;
#else
	    return CPUTYPE_SANDYBRIDGE;
#endif
          else
	    return CPUTYPE_NEHALEM;
	case 12:
	    // Apollo Lake
	    return CPUTYPE_NEHALEM;
	}
	break;
      case 9:
      case 8: 
        switch (model) {
	case 14: // Kaby Lake
          if(support_avx())
#ifndef NO_AVX2
            return CPUTYPE_HASWELL;
#else
	    return CPUTYPE_SANDYBRIDGE;
#endif
          else
	    return CPUTYPE_NEHALEM;
	}
	break;    
      }
      break;
    case 0x7:
      return CPUTYPE_ITANIUM;
    case 0xf:
      switch (exfamily) {
      case 0 :
	return CPUTYPE_PENTIUM4;
      case 1 :
	return CPUTYPE_ITANIUM;
      }
      break;
    }
    return CPUTYPE_INTEL_UNKNOWN;
  }

  if (vendor == VENDOR_AMD){
    switch (family) {
    case 0x4:
      return CPUTYPE_AMD5X86;
    case 0x5:
      return CPUTYPE_AMDK6;
    case 0x6:
      return CPUTYPE_ATHLON;
    case 0xf:
      switch (exfamily) {
      case  0:
      case  2:
	return CPUTYPE_OPTERON;
      case  1:
      case  3:
      case  7:
      case 10:
	return CPUTYPE_BARCELONA;
      case  5:
	return CPUTYPE_BOBCAT;
      case  6:
	switch (model) {
	case 1:
	  //AMD Bulldozer Opteron 6200 / Opteron 4200 / AMD FX-Series
	  if(support_avx())
	    return CPUTYPE_BULLDOZER;
	  else
	    return CPUTYPE_BARCELONA; //OS don't support AVX.
	case 2: //AMD Piledriver
	case 3: //AMD Richland
	  if(support_avx())
	    return CPUTYPE_PILEDRIVER;
	  else
	    return CPUTYPE_BARCELONA; //OS don't support AVX.
	case 5: // New EXCAVATOR CPUS
	  if(support_avx())
	    return CPUTYPE_EXCAVATOR;
	  else
	    return CPUTYPE_BARCELONA; //OS don't support AVX.
	case 0:
        case 8:
	  switch(exmodel){
	  case 1: //AMD Trinity
	    if(support_avx())
	      return CPUTYPE_PILEDRIVER;
	    else
	      return CPUTYPE_BARCELONA; //OS don't support AVX.
	  case 3:
	    if(support_avx())
	      return CPUTYPE_STEAMROLLER;
	    else
	      return CPUTYPE_BARCELONA; //OS don't support AVX.

	  case 6:
	    if(support_avx())
	      return CPUTYPE_EXCAVATOR;
	    else
	      return CPUTYPE_BARCELONA; //OS don't support AVX.
	  }
	  break;
	}
	break;
      case 8:
	switch (model) {
	case 1:
	  // AMD Ryzen
	  if(support_avx())
#ifndef NO_AVX2
	    return CPUTYPE_ZEN;
#else
	    return CPUTYPE_SANDYBRIDGE; // Zen is closer in architecture to Sandy Bridge than to Excavator
#endif
	  else
	    return CPUTYPE_BARCELONA;
        }
      }
      break;
    }
    return CPUTYPE_AMD_UNKNOWN;
  }

  if (vendor == VENDOR_CYRIX){
    switch (family) {
    case 0x4:
      return CPUTYPE_CYRIX5X86;
    case 0x5:
      return CPUTYPE_CYRIXM1;
    case 0x6:
      return CPUTYPE_CYRIXM2;
    }
    return CPUTYPE_CYRIX_UNKNOWN;
  }

  if (vendor == VENDOR_NEXGEN){
    switch (family) {
    case 0x5:
      return CPUTYPE_NEXGENNX586;
    }
    return CPUTYPE_NEXGEN_UNKNOWN;
  }

  if (vendor == VENDOR_CENTAUR){
    switch (family) {
    case 0x5:
      return CPUTYPE_CENTAURC6;
      break;
    case 0x6:
      return CPUTYPE_NANO;
      break;

    }
    return CPUTYPE_VIAC3;
  }

  if (vendor == VENDOR_RISE){
    switch (family) {
    case 0x5:
      return CPUTYPE_RISEMP6;
    }
    return CPUTYPE_RISE_UNKNOWN;
  }

  if (vendor == VENDOR_SIS){
    switch (family) {
    case 0x5:
      return CPUTYPE_SYS55X;
    }
    return CPUTYPE_SIS_UNKNOWN;
  }

  if (vendor == VENDOR_TRANSMETA){
    switch (family) {
    case 0x5:
      return CPUTYPE_CRUSOETM3X;
    }
    return CPUTYPE_TRANSMETA_UNKNOWN;
  }

  if (vendor == VENDOR_NSC){
    switch (family) {
    case 0x5:
      return CPUTYPE_NSGEODE;
    }
    return CPUTYPE_NSC_UNKNOWN;
  }

  return CPUTYPE_UNKNOWN;
}

static char *cpuname[] = {
  "UNKNOWN",
  "INTEL_UNKNOWN",
  "UMC_UNKNOWN",
  "AMD_UNKNOWN",
  "CYRIX_UNKNOWN",
  "NEXGEN_UNKNOWN",
  "CENTAUR_UNKNOWN",
  "RISE_UNKNOWN",
  "SIS_UNKNOWN",
  "TRANSMETA_UNKNOWN",
  "NSC_UNKNOWN",
  "80386",
  "80486",
  "PENTIUM",
  "PENTIUM2",
  "PENTIUM3",
  "PENTIUMM",
  "PENTIUM4",
  "CORE2",
  "PENRYN",
  "DUNNINGTON",
  "NEHALEM",
  "ATOM",
  "ITANIUM",
  "ITANIUM2",
  "5X86",
  "K6",
  "ATHLON",
  "DURON",
  "OPTERON",
  "BARCELONA",
  "SHANGHAI",
  "ISTANBUL",
  "CYRIX5X86",
  "CYRIXM1",
  "CYRIXM2",
  "NEXGENNX586",
  "CENTAURC6",
  "RISEMP6",
  "SYS55X",
  "TM3X00",
  "NSGEODE",
  "VIAC3",
  "NANO",
  "SANDYBRIDGE",
  "BOBCAT",
  "BULLDOZER",
  "PILEDRIVER",
  "HASWELL",
  "STEAMROLLER",
  "EXCAVATOR",
  "ZEN",
};

static char *lowercpuname[] = {
  "unknown",
  "intel_unknown",
  "umc_unknown",
  "amd_unknown",
  "cyrix_unknown",
  "nexgen_unknown",
  "centaur_unknown",
  "rise_unknown",
  "sis_unknown",
  "transmeta_unknown",
  "nsc_unknown",
  "80386",
  "80486",
  "pentium",
  "pentium2",
  "pentium3",
  "pentiumm",
  "pentium4",
  "core2",
  "penryn",
  "dunnington",
  "nehalem",
  "atom",
  "itanium",
  "itanium2",
  "5x86",
  "k6",
  "athlon",
  "duron",
  "opteron",
  "barcelona",
  "shanghai",
  "istanbul",
  "cyrix5x86",
  "cyrixm1",
  "cyrixm2",
  "nexgennx586",
  "centaurc6",
  "risemp6",
  "sys55x",
  "tms3x00",
  "nsgeode",
  "nano",
  "sandybridge",
  "bobcat",
  "bulldozer",
  "piledriver",
  "haswell",
  "steamroller",
  "excavator",
  "zen",
};

static char *corename[] = {
  "UNKOWN",
  "80486",
  "P5",
  "P6",
  "KATMAI",
  "COPPERMINE",
  "NORTHWOOD",
  "PRESCOTT",
  "BANIAS",
  "ATHLON",
  "OPTERON",
  "BARCELONA",
  "VIAC3",
  "YONAH",
  "CORE2",
  "PENRYN",
  "DUNNINGTON",
  "NEHALEM",
  "ATOM",
  "NANO",
  "SANDYBRIDGE",
  "BOBCAT",
  "BULLDOZER",
  "PILEDRIVER",
  "HASWELL",
  "STEAMROLLER",
  "EXCAVATOR",
  "ZEN",
};

static char *corename_lower[] = {
  "unknown",
  "80486",
  "p5",
  "p6",
  "katmai",
  "coppermine",
  "northwood",
  "prescott",
  "banias",
  "athlon",
  "opteron",
  "barcelona",
  "viac3",
  "yonah",
  "core2",
  "penryn",
  "dunnington",
  "nehalem",
  "atom",
  "nano",
  "sandybridge",
  "bobcat",
  "bulldozer",
  "piledriver",
  "haswell",
  "steamroller",
  "excavator",
  "zen",
};


char *get_cpunamechar(void){
  return cpuname[get_cpuname()];
}

char *get_lower_cpunamechar(void){
  return lowercpuname[get_cpuname()];
}


int get_coretype(void){

  int family, exfamily, model, exmodel, vendor;

  if (!have_cpuid()) return CORE_80486;

  family   = get_cputype(GET_FAMILY);
  exfamily = get_cputype(GET_EXFAMILY);
  model    = get_cputype(GET_MODEL);
  exmodel  = get_cputype(GET_EXMODEL);

  vendor = get_vendor();

  if (vendor == VENDOR_INTEL){
    switch (family) {
    case  4:
      return CORE_80486;
    case  5:
      return CORE_P5;
    case  6:
      switch (exmodel) {
      case  0:
	switch (model) {
	case  0:
	case  1:
	case  2:
	case  3:
	case  4:
	case  5:
	case  6:
	  return CORE_P6;
	case  7:
	  return CORE_KATMAI;
	case  8:
	case 10:
	case 11:
	  return CORE_COPPERMINE;
	case  9:
	case 13:
	case 14:
	  return CORE_BANIAS;
	case 15:
	  return CORE_CORE2;
	}
	break;
      case  1:
	switch (model) {
	case  6:
	  return CORE_CORE2;
	case  7:
	  return CORE_PENRYN;
	case 10:
	case 11:
	case 14:
	case 15:
	  return CORE_NEHALEM;
	case 12:
	  return CORE_ATOM;
	case 13:
	  return CORE_DUNNINGTON;
	}
	break;
      case  2:
	switch (model) {
	case 5:
	  //Intel Core (Clarkdale) / Core (Arrandale)
	  // Pentium (Clarkdale) / Pentium Mobile (Arrandale)
	  // Xeon (Clarkdale), 32nm
	  return CORE_NEHALEM;
	case 10:
          //Intel Core i5-2000 /i7-2000 (Sandy Bridge)
	  if(support_avx())
	    return CORE_SANDYBRIDGE;
	  else
	    return CORE_NEHALEM; //OS doesn't support AVX
	case 12:
	  //Xeon Processor 5600 (Westmere-EP)
	  return CORE_NEHALEM;
	case 13:
          //Intel Core i7-3000 / Xeon E5 (Sandy Bridge)
	  if(support_avx())
	    return CORE_SANDYBRIDGE;
	  else
	    return CORE_NEHALEM; //OS doesn't support AVX
	case 14:
	  //Xeon E7540
	case 15:
	  //Xeon Processor E7 (Westmere-EX)
	  return CORE_NEHALEM;
	}
	break;
      case 3:
	switch (model) {
	case 10:
	case 14:
	  if(support_avx())
	    return CORE_SANDYBRIDGE;
	  else
	    return CORE_NEHALEM; //OS doesn't support AVX
        case 12:
	case 15:
          if(support_avx())
#ifndef NO_AVX2
            return CORE_HASWELL;
#else
	    return CORE_SANDYBRIDGE;
#endif
          else
	    return CORE_NEHALEM;
	case 13:
	  //broadwell
          if(support_avx())
#ifndef NO_AVX2
            return CORE_HASWELL;
#else
	    return CORE_SANDYBRIDGE;
#endif
          else
	    return CORE_NEHALEM;
	}
	break;
      case 4:
        switch (model) {
        case 5:
	case 6:
          if(support_avx())
#ifndef NO_AVX2
            return CORE_HASWELL;
#else
	    return CORE_SANDYBRIDGE;
#endif
          else
	    return CORE_NEHALEM;
	case 7:
	case 15:
	  //broadwell
          if(support_avx())
#ifndef NO_AVX2
            return CORE_HASWELL;
#else
	    return CORE_SANDYBRIDGE;
#endif
          else
	    return CORE_NEHALEM;
	case 14:
	  //Skylake
          if(support_avx())
#ifndef NO_AVX2
            return CORE_HASWELL;
#else
	    return CORE_SANDYBRIDGE;
#endif
          else
	    return CORE_NEHALEM;
	case 12:
	  // Braswell
	case 13:
	  // Avoton
	    return CORE_NEHALEM;
        }
        break;
      case 5:
        switch (model) {
	case 6:
	  //broadwell
          if(support_avx())
#ifndef NO_AVX2
            return CORE_HASWELL;
#else
	    return CORE_SANDYBRIDGE;
#endif
          else
	    return CORE_NEHALEM;
	case 5:
	case 14:
	  // Skylake
          if(support_avx())
#ifndef NO_AVX2
            return CORE_HASWELL;
#else
	    return CORE_SANDYBRIDGE;
#endif
          else
	    return CORE_NEHALEM;
	case 7:
	  // Phi Knights Landing
          if(support_avx())
#ifndef NO_AVX2
            return CORE_HASWELL;
#else
	    return CORE_SANDYBRIDGE;
#endif
          else
	    return CORE_NEHALEM;
	case 12:
	  // Apollo Lake
	    return CORE_NEHALEM;
        }
	break;
      case 9:
      case 8:
        if (model == 14) { // Kaby Lake 
	  if(support_avx())
#ifndef NO_AVX2
	    return CORE_HASWELL;
#else
	    return CORE_SANDYBRIDGE;
#endif
	  else
            return CORE_NEHALEM;
	}
      }
      break;

      case 15:
	if (model <= 0x2) return CORE_NORTHWOOD;
	else return CORE_PRESCOTT;
    }
  }

  if (vendor == VENDOR_AMD){
    if (family <= 0x5) return CORE_80486;
    if (family <= 0xe) return CORE_ATHLON;
    if (family == 0xf){
      if ((exfamily == 0) || (exfamily == 2)) return CORE_OPTERON;
      else if (exfamily == 5) return CORE_BOBCAT;
      else if (exfamily == 6) {
	switch (model) {
	case 1:
	  //AMD Bulldozer Opteron 6200 / Opteron 4200 / AMD FX-Series
	  if(support_avx())
	    return CORE_BULLDOZER;
	  else
	    return CORE_BARCELONA; //OS don't support AVX.
	case 2: //AMD Piledriver
	case 3: //AMD Richland
	  if(support_avx())
	    return CORE_PILEDRIVER;
	  else
	    return CORE_BARCELONA; //OS don't support AVX.
    case 5: // New EXCAVATOR
	  if(support_avx())
	    return CORE_EXCAVATOR;
	  else
	    return CORE_BARCELONA; //OS don't support AVX.
	case 0:
        case 8:
	  switch(exmodel){
	  case 1: //AMD Trinity
	    if(support_avx())
	      return CORE_PILEDRIVER;
	    else
	      return CORE_BARCELONA; //OS don't support AVX.

	  case 3:
	    if(support_avx())
	      return CORE_STEAMROLLER;
	    else
	      return CORE_BARCELONA; //OS don't support AVX.

	  case 6:
	    if(support_avx())
	      return CORE_EXCAVATOR;
	    else
	      return CORE_BARCELONA; //OS don't support AVX.
	  }
	  break;
	}
      } else if (exfamily == 8) {
	switch (model) {
	case 1:
	  // AMD Ryzen
	  if(support_avx())
#ifndef NO_AVX2
	    return CORE_ZEN;
#else
	    return CORE_SANDYBRIDGE; // Zen is closer in architecture to Sandy Bridge than to Excavator
#endif
	  else
	    return CORE_BARCELONA;
	}
      } else {
	return CORE_BARCELONA;
      }
    }
  }

  if (vendor == VENDOR_CENTAUR) {
    switch (family) {
    case 0x6:
      return CORE_NANO;
      break;
    }
    return CORE_VIAC3;
  }

  return CORE_UNKNOWN;
}

void get_cpuconfig(void){

  cache_info_t info;
  int features;

  printf("#define %s\n", cpuname[get_cpuname()]);


  if (get_coretype() != CORE_P5) {

    get_cacheinfo(CACHE_INFO_L1_I, &info);
    if (info.size > 0) {
      printf("#define L1_CODE_SIZE %d\n", info.size * 1024);
      printf("#define L1_CODE_ASSOCIATIVE %d\n", info.associative);
      printf("#define L1_CODE_LINESIZE %d\n", info.linesize);
    }

    get_cacheinfo(CACHE_INFO_L1_D, &info);
    if (info.size > 0) {
      printf("#define L1_DATA_SIZE %d\n", info.size * 1024);
      printf("#define L1_DATA_ASSOCIATIVE %d\n", info.associative);
      printf("#define L1_DATA_LINESIZE %d\n", info.linesize);
    }

    get_cacheinfo(CACHE_INFO_L2, &info);
    if (info.size > 0) {
      printf("#define L2_SIZE %d\n", info.size * 1024);
      printf("#define L2_ASSOCIATIVE %d\n", info.associative);
      printf("#define L2_LINESIZE %d\n", info.linesize);
    } else {
      //fall back for some virtual machines.
      printf("#define L2_SIZE 1048576\n");
      printf("#define L2_ASSOCIATIVE 6\n");
      printf("#define L2_LINESIZE 64\n");
    }


    get_cacheinfo(CACHE_INFO_L3, &info);
    if (info.size > 0) {
      printf("#define L3_SIZE %d\n", info.size * 1024);
      printf("#define L3_ASSOCIATIVE %d\n", info.associative);
      printf("#define L3_LINESIZE %d\n", info.linesize);
    }

    get_cacheinfo(CACHE_INFO_L1_ITB, &info);
    if (info.size > 0) {
      printf("#define ITB_SIZE %d\n", info.size * 1024);
      printf("#define ITB_ASSOCIATIVE %d\n", info.associative);
      printf("#define ITB_ENTRIES %d\n", info.linesize);
    }

    get_cacheinfo(CACHE_INFO_L1_DTB, &info);
    if (info.size > 0) {
      printf("#define DTB_SIZE %d\n", info.size * 1024);
      printf("#define DTB_ASSOCIATIVE %d\n", info.associative);
      printf("#define DTB_DEFAULT_ENTRIES %d\n", info.linesize);
    } else {
      //fall back for some virtual machines.
      printf("#define DTB_DEFAULT_ENTRIES 32\n");
    }

    features = get_cputype(GET_FEATURE);

    if (features & HAVE_CMOV )   printf("#define HAVE_CMOV\n");
    if (features & HAVE_MMX  )   printf("#define HAVE_MMX\n");
    if (features & HAVE_SSE  )   printf("#define HAVE_SSE\n");
    if (features & HAVE_SSE2 )   printf("#define HAVE_SSE2\n");
    if (features & HAVE_SSE3 )   printf("#define HAVE_SSE3\n");
    if (features & HAVE_SSSE3)   printf("#define HAVE_SSSE3\n");
    if (features & HAVE_SSE4_1)   printf("#define HAVE_SSE4_1\n");
    if (features & HAVE_SSE4_2)   printf("#define HAVE_SSE4_2\n");
    if (features & HAVE_SSE4A)   printf("#define HAVE_SSE4A\n");
    if (features & HAVE_SSE5 )   printf("#define HAVE_SSSE5\n");
    if (features & HAVE_AVX )    printf("#define HAVE_AVX\n");
    if (features & HAVE_3DNOWEX) printf("#define HAVE_3DNOWEX\n");
    if (features & HAVE_3DNOW)   printf("#define HAVE_3DNOW\n");
    if (features & HAVE_FMA4 )    printf("#define HAVE_FMA4\n");
    if (features & HAVE_FMA3 )    printf("#define HAVE_FMA3\n");
    if (features & HAVE_CFLUSH)  printf("#define HAVE_CFLUSH\n");
    if (features & HAVE_HIT)     printf("#define HAVE_HIT 1\n");
    if (features & HAVE_MISALIGNSSE) printf("#define HAVE_MISALIGNSSE\n");
    if (features & HAVE_128BITFPU)   printf("#define HAVE_128BITFPU\n");
    if (features & HAVE_FASTMOVU)    printf("#define HAVE_FASTMOVU\n");

    printf("#define NUM_SHAREDCACHE %d\n", get_cputype(GET_NUMSHARE) + 1);
    printf("#define NUM_CORES %d\n", get_cputype(GET_NUMCORES) + 1);

    features = get_coretype();
    if (features > 0) printf("#define CORE_%s\n", corename[features]);
  } else {
    printf("#define DTB_DEFAULT_ENTRIES 16\n");
    printf("#define L1_CODE_SIZE 8192\n");
    printf("#define L1_DATA_SIZE 8192\n");
    printf("#define L2_SIZE 0\n");
  }
}

void get_architecture(void){
#ifndef __64BIT__
    printf("X86");
#else
    printf("X86_64");
#endif
}

void get_subarchitecture(void){
    printf("%s", get_cpunamechar());
}

void get_subdirname(void){
#ifndef __64BIT__
    printf("x86");
#else
    printf("x86_64");
#endif
}

char *get_corename(void){
  return corename[get_coretype()];
}

void get_libname(void){
  printf("%s",   corename_lower[get_coretype()]);
}

/* This if for Makefile */
void get_sse(void){

  int features;

  features = get_cputype(GET_FEATURE);

  if (features & HAVE_MMX  )   printf("HAVE_MMX=1\n");
  if (features & HAVE_SSE  )   printf("HAVE_SSE=1\n");
  if (features & HAVE_SSE2 )   printf("HAVE_SSE2=1\n");
  if (features & HAVE_SSE3 )   printf("HAVE_SSE3=1\n");
  if (features & HAVE_SSSE3)   printf("HAVE_SSSE3=1\n");
  if (features & HAVE_SSE4_1)   printf("HAVE_SSE4_1=1\n");
  if (features & HAVE_SSE4_2)   printf("HAVE_SSE4_2=1\n");
  if (features & HAVE_SSE4A)   printf("HAVE_SSE4A=1\n");
  if (features & HAVE_SSE5 )   printf("HAVE_SSSE5=1\n");
  if (features & HAVE_AVX )    printf("HAVE_AVX=1\n");
  if (features & HAVE_3DNOWEX) printf("HAVE_3DNOWEX=1\n");
  if (features & HAVE_3DNOW)   printf("HAVE_3DNOW=1\n");
  if (features & HAVE_FMA4 )    printf("HAVE_FMA4=1\n");
  if (features & HAVE_FMA3 )    printf("HAVE_FMA3=1\n");

}