git.oblomov.eu Git - wine/blob - dlls/kernel/cpu.c

   1 /*
   2  * What processor?
   3  *
   4  * Copyright 1995,1997 Morten Welinder
   5  * Copyright 1997-1998 Marcus Meissner
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #ifdef HAVE_SYS_PARAM_H
  26 # include <sys/param.h>
  27 #endif
  28 #ifdef HAVE_SYS_SYSCTL_H
  29 # include <sys/sysctl.h>
  30 #endif
  31 #ifdef HAVE_MACHINE_CPU_H
  32 # include <machine/cpu.h>
  33 #endif
  34
  35 #include <ctype.h>
  36 #include <string.h>
  37 #include <stdarg.h>
  38 #include <stdio.h>
  39 #include <stdlib.h>
  40 #ifdef HAVE_SYS_TIME_H
  41 # include <sys/time.h>
  42 #endif
  43
  44
  45 #define NONAMELESSUNION
  46 #define NONAMELESSSTRUCT
  47 #include "windef.h"
  48 #include "winbase.h"
  49 #include "winnt.h"
  50 #include "winreg.h"
  51 #include "winternl.h"
  52 #include "winerror.h"
  53 #include "wine/unicode.h"
  54 #include "wine/debug.h"
  55
  56 WINE_DEFAULT_DEBUG_CHANNEL(reg);
  57
  58 #define AUTH    0x68747541      /* "Auth" */
  59 #define ENTI    0x69746e65      /* "enti" */
  60 #define CAMD    0x444d4163      /* "cAMD" */
  61
  62 /* Calls cpuid with an eax of 'ax' and returns the 16 bytes in *p
  63  * We are compiled with -fPIC, so we can't clobber ebx.
  64  */
  65 static inline void do_cpuid(int ax, int *p)
  66 {
  67 #ifdef __i386__
  68         __asm__("pushl %%ebx\n\t"
  69                 "cpuid\n\t"
  70                 "movl %%ebx, %%esi\n\t"
  71                 "popl %%ebx"
  72                 : "=a" (p[0]), "=S" (p[1]), "=c" (p[2]), "=d" (p[3])
  73                 :  "0" (ax));
  74 #endif
  75 }
  76
  77 /* From xf86info havecpuid.c 1.11 */
  78 static inline int have_cpuid(void)
  79 {
  80 #ifdef __i386__
  81         unsigned int f1, f2;
  82         __asm__("pushfl\n\t"
  83                 "pushfl\n\t"
  84                 "popl %0\n\t"
  85                 "movl %0,%1\n\t"
  86                 "xorl %2,%0\n\t"
  87                 "pushl %0\n\t"
  88                 "popfl\n\t"
  89                 "pushfl\n\t"
  90                 "popl %0\n\t"
  91                 "popfl"
  92                 : "=&r" (f1), "=&r" (f2)
  93                 : "ir" (0x00200000));
  94         return ((f1^f2) & 0x00200000) != 0;
  95 #else
  96         return 0;
  97 #endif
  98 }
  99
 100 static BYTE PF[64] = {0,};
 101 static ULONGLONG cpuHz = 1000000000; /* default to a 1GHz */
 102
 103 static void create_registry_keys( const SYSTEM_INFO *info )
 104 {
 105     static const WCHAR SystemW[] = {'M','a','c','h','i','n','e','\\',
 106                                     'H','a','r','d','w','a','r','e','\\',
 107                                     'D','e','s','c','r','i','p','t','i','o','n','\\',
 108                                     'S','y','s','t','e','m',0};
 109     static const WCHAR fpuW[] = {'F','l','o','a','t','i','n','g','P','o','i','n','t','P','r','o','c','e','s','s','o','r',0};
 110     static const WCHAR cpuW[] = {'C','e','n','t','r','a','l','P','r','o','c','e','s','s','o','r',0};
 111     static const WCHAR IdentifierW[] = {'I','d','e','n','t','i','f','i','e','r',0};
 112     static const WCHAR SysidW[] = {'A','T',' ','c','o','m','p','a','t','i','b','l','e',0};
 113     static const WCHAR mhzKeyW[] = {'~','M','H','z',0};
 114
 115     unsigned int i;
 116     HKEY hkey, system_key, cpu_key;
 117     OBJECT_ATTRIBUTES attr;
 118     UNICODE_STRING nameW, valueW;
 119
 120     attr.Length = sizeof(attr);
 121     attr.RootDirectory = 0;
 122     attr.ObjectName = &nameW;
 123     attr.Attributes = 0;
 124     attr.SecurityDescriptor = NULL;
 125     attr.SecurityQualityOfService = NULL;
 126
 127     RtlInitUnicodeString( &nameW, SystemW );
 128     if (NtCreateKey( &system_key, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL )) return;
 129
 130     RtlInitUnicodeString( &valueW, IdentifierW );
 131     NtSetValueKey( system_key, &valueW, 0, REG_SZ, SysidW, (strlenW(SysidW)+1) * sizeof(WCHAR) );
 132
 133     attr.RootDirectory = system_key;
 134     RtlInitUnicodeString( &nameW, fpuW );
 135     if (!NtCreateKey( &hkey, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL )) NtClose( hkey );
 136
 137     RtlInitUnicodeString( &nameW, cpuW );
 138     if (!NtCreateKey( &cpu_key, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL ))
 139     {
 140         for (i = 0; i < info->dwNumberOfProcessors; i++)
 141         {
 142             char num[10], id[20];
 143
 144             attr.RootDirectory = cpu_key;
 145             sprintf( num, "%d", i );
 146             RtlCreateUnicodeStringFromAsciiz( &nameW, num );
 147             if (!NtCreateKey( &hkey, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL ))
 148             {
 149                 WCHAR idW[20];
 150                 DWORD cpuMHz = cpuHz / 1000000;
 151
 152                 sprintf( id, "CPU %ld", info->dwProcessorType );
 153                 RtlMultiByteToUnicodeN( idW, sizeof(idW), NULL, id, strlen(id)+1 );
 154                 NtSetValueKey( hkey, &valueW, 0, REG_SZ, idW, (strlenW(idW)+1)*sizeof(WCHAR) );
 155
 156                 RtlInitUnicodeString( &valueW, mhzKeyW );
 157                 NtSetValueKey( hkey, &valueW, 0, REG_DWORD, &cpuMHz, sizeof(DWORD) );
 158                 NtClose( hkey );
 159             }
 160             RtlFreeUnicodeString( &nameW );
 161         }
 162         NtClose( cpu_key );
 163     }
 164     NtClose( system_key );
 165 }
 166
 167 /****************************************************************************
 168  *              QueryPerformanceCounter (KERNEL32.@)
 169  *
 170  * Get the current value of the performance counter.
 171  *
 172  * PARAMS
 173  *  counter [O] Destination for the current counter reading
 174  *
 175  * RETURNS
 176  *  Success: TRUE. counter contains the current reading
 177  *  Failure: FALSE.
 178  *
 179  * SEE ALSO
 180  *  See QueryPerformanceFrequency.
 181  */
 182 BOOL WINAPI QueryPerformanceCounter(PLARGE_INTEGER counter)
 183 {
 184     LARGE_INTEGER time;
 185
 186 #if defined(__i386__) && defined(__GNUC__)
 187     if (IsProcessorFeaturePresent( PF_RDTSC_INSTRUCTION_AVAILABLE )) {
 188         /* i586 optimized version */
 189         __asm__ __volatile__ ( "rdtsc"
 190                                : "=a" (counter->u.LowPart), "=d" (counter->u.HighPart) );
 191         /* see below */
 192         counter->QuadPart = counter->QuadPart / ( cpuHz / 1193182 ) ;
 193         return TRUE;
 194     }
 195 #endif
 196
 197     /* fall back to generic routine (ie, for i386, i486) */
 198     NtQuerySystemTime( &time );
 199     counter->QuadPart = time.QuadPart;
 200     return TRUE;
 201 }
 202
 203
 204 /****************************************************************************
 205  *              QueryPerformanceFrequency (KERNEL32.@)
 206  *
 207  * Get the resolution of the performace counter.
 208  *
 209  * PARAMS
 210  *  frequency [O] Destination for the counter resolution
 211  *
 212  * RETURNS
 213  *  Success. TRUE. Frequency contains the resolution of the counter.
 214  *  Failure: FALSE.
 215  *
 216  * SEE ALSO
 217  *  See QueryPerformanceCounter.
 218  */
 219 BOOL WINAPI QueryPerformanceFrequency(PLARGE_INTEGER frequency)
 220 {
 221 #if defined(__i386__) && defined(__GNUC__)
 222     if (IsProcessorFeaturePresent( PF_RDTSC_INSTRUCTION_AVAILABLE )) {
 223         /* On a standard PC, Windows returns the clock frequency for the
 224          * 8253 Programmable Interrupt Timer, which has been 1193182 Hz
 225          * since the first IBM PC (cpuHz/4). There are applications that
 226          * crash when the returned frequency is much higher or lower, so
 227          * do not try to be smart */
 228         frequency->QuadPart = 1193182;
 229         return TRUE;
 230     }
 231 #endif
 232     frequency->u.LowPart  = 10000000;
 233     frequency->u.HighPart = 0;
 234     return TRUE;
 235 }
 236
 237
 238 /***********************************************************************
 239  *                      GetSystemInfo                   [KERNEL32.@]
 240  *
 241  * Get information about the system.
 242  *
 243  * RETURNS
 244  *  Nothing.
 245  *
 246  * NOTES
 247  * On the first call it creates cached values, so it doesn't have to determine
 248  * them repeatedly. On Linux, the "/proc/cpuinfo" special file is used.
 249  *
 250  * It creates a registry subhierarchy, looking like:
 251  * "\HARDWARE\DESCRIPTION\System\CentralProcessor\<processornumber>\Identifier (CPU x86)".
 252  * Note that there is a hierarchy for every processor installed, so this
 253  * supports multiprocessor systems. This is done like Win95 does it, I think.
 254  *
 255  * It also creates a cached flag array for IsProcessorFeaturePresent().
 256  */
 257 VOID WINAPI GetSystemInfo(
 258         LPSYSTEM_INFO si        /* [out] Destination for system information, may not be NULL */)
 259 {
 260         static int cache = 0;
 261         static SYSTEM_INFO cachedsi;
 262
 263         TRACE("si=0x%p\n", si);
 264         if (cache) {
 265                 memcpy(si,&cachedsi,sizeof(*si));
 266                 return;
 267         }
 268         memset(PF,0,sizeof(PF));
 269
 270         /* choose sensible defaults ...
 271          * FIXME: perhaps overrideable with precompiler flags?
 272          */
 273         cachedsi.u.s.wProcessorArchitecture     = PROCESSOR_ARCHITECTURE_INTEL;
 274         cachedsi.dwPageSize                     = getpagesize();
 275
 276         /* FIXME: the two entries below should be computed somehow... */
 277         cachedsi.lpMinimumApplicationAddress    = (void *)0x00010000;
 278         cachedsi.lpMaximumApplicationAddress    = (void *)0x7FFFFFFF;
 279         cachedsi.dwActiveProcessorMask          = 1;
 280         cachedsi.dwNumberOfProcessors           = 1;
 281         cachedsi.dwProcessorType                = PROCESSOR_INTEL_PENTIUM;
 282         cachedsi.dwAllocationGranularity        = 0x10000;
 283         cachedsi.wProcessorLevel                = 5; /* 586 */
 284         cachedsi.wProcessorRevision             = 0;
 285
 286         cache = 1; /* even if there is no more info, we now have a cacheentry */
 287         memcpy(si,&cachedsi,sizeof(*si));
 288
 289         /* Hmm, reasonable processor feature defaults? */
 290
 291 #ifdef linux
 292         {
 293         char line[200];
 294         FILE *f = fopen ("/proc/cpuinfo", "r");
 295
 296         if (!f)
 297                 return;
 298         while (fgets(line,200,f)!=NULL) {
 299                 char    *s,*value;
 300
 301                 /* NOTE: the ':' is the only character we can rely on */
 302                 if (!(value = strchr(line,':')))
 303                         continue;
 304
 305                 /* terminate the valuename */
 306                 s = value - 1;
 307                 while ((s >= line) && ((*s == ' ') || (*s == '\t'))) s--;
 308                 *(s + 1) = '\0';
 309
 310                 /* and strip leading spaces from value */
 311                 value += 1;
 312                 while (*value==' ') value++;
 313                 if ((s=strchr(value,'\n')))
 314                         *s='\0';
 315
 316                 /* 2.1 method */
 317                 if (!strcasecmp(line, "cpu family")) {
 318                         if (isdigit (value[0])) {
 319                                 switch (value[0] - '0') {
 320                                 case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 321                                         cachedsi.wProcessorLevel= 3;
 322                                         break;
 323                                 case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 324                                         cachedsi.wProcessorLevel= 4;
 325                                         break;
 326                                 case 5: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 327                                         cachedsi.wProcessorLevel= 5;
 328                                         break;
 329                                 case 6: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 330                                         cachedsi.wProcessorLevel= 6;
 331                                         break;
 332                                 case 1: /* two-figure levels */
 333                                     if (value[1] == '5')
 334                                     {
 335                                         cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 336                                         cachedsi.wProcessorLevel= 6;
 337                                         break;
 338                                     }
 339                                     /* fall through */
 340                                 default:
 341                                         FIXME("unknown cpu family '%s', please report ! (-> setting to 386)\n", value);
 342                                         break;
 343                                 }
 344                         }
 345                         continue;
 346                 }
 347                 /* old 2.0 method */
 348                 if (!strcasecmp(line, "cpu")) {
 349                         if (    isdigit (value[0]) && value[1] == '8' &&
 350                                 value[2] == '6' && value[3] == 0
 351                         ) {
 352                                 switch (value[0] - '0') {
 353                                 case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 354                                         cachedsi.wProcessorLevel= 3;
 355                                         break;
 356                                 case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 357                                         cachedsi.wProcessorLevel= 4;
 358                                         break;
 359                                 case 5: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 360                                         cachedsi.wProcessorLevel= 5;
 361                                         break;
 362                                 case 6: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 363                                         cachedsi.wProcessorLevel= 6;
 364                                         break;
 365                                 default:
 366                                         FIXME("unknown Linux 2.0 cpu family '%s', please report ! (-> setting to 386)\n", value);
 367                                         break;
 368                                 }
 369                         }
 370                         continue;
 371                 }
 372                 if (!strcasecmp(line,"fdiv_bug")) {
 373                         if (!strncasecmp(value,"yes",3))
 374                                 PF[PF_FLOATING_POINT_PRECISION_ERRATA] = TRUE;
 375
 376                         continue;
 377                 }
 378                 if (!strcasecmp(line,"fpu")) {
 379                         if (!strncasecmp(value,"no",2))
 380                                 PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 381
 382                         continue;
 383                 }
 384                 if (!strcasecmp(line,"processor")) {
 385                         /* processor number counts up... */
 386                         unsigned int x;
 387
 388                         if (sscanf(value,"%d",&x))
 389                                 if (x+1>cachedsi.dwNumberOfProcessors)
 390                                         cachedsi.dwNumberOfProcessors=x+1;
 391
 392                         continue;
 393                 }
 394                 if (!strcasecmp(line,"stepping")) {
 395                         int     x;
 396
 397                         if (sscanf(value,"%d",&x))
 398                                 cachedsi.wProcessorRevision = x;
 399
 400                         continue;
 401                 }
 402                 if (!strcasecmp(line, "cpu MHz")) {
 403                         double cmz;
 404                         if (sscanf( value, "%lf", &cmz ) == 1) {
 405                                 /* SYSTEMINFO doesn't have a slot for cpu speed, so store in a global */
 406                                 cpuHz = cmz * 1000 * 1000;
 407                                 TRACE("CPU speed read as %lld\n", cpuHz);
 408                         }
 409                         continue;
 410                 }
 411                 if (    !strcasecmp(line,"flags")       ||
 412                         !strcasecmp(line,"features")
 413                 ) {
 414                         if (strstr(value,"cx8"))
 415                                 PF[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
 416                         if (strstr(value,"mmx"))
 417                                 PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 418                         if (strstr(value,"tsc"))
 419                                 PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
 420                         if (strstr(value,"3dnow"))
 421                                 PF[PF_3DNOW_INSTRUCTIONS_AVAILABLE] = TRUE;
 422                         /* This will also catch sse2, but we have sse itself
 423                          * if we have sse2, so no problem */
 424                         if (strstr(value,"sse"))
 425                                 PF[PF_XMMI_INSTRUCTIONS_AVAILABLE] = TRUE;
 426                         if (strstr(value,"sse2"))
 427                                 PF[PF_XMMI64_INSTRUCTIONS_AVAILABLE] = TRUE;
 428                         if (strstr(value,"pae"))
 429                                 PF[PF_PAE_ENABLED] = TRUE;
 430
 431                         continue;
 432                 }
 433         }
 434         fclose (f);
 435         }
 436         memcpy(si,&cachedsi,sizeof(*si));
 437 #elif defined (__NetBSD__)
 438         {
 439              int mib[2];
 440              int value[2];
 441              char model[256];
 442              char *cpuclass;
 443              FILE *f = fopen ("/var/run/dmesg.boot", "r");
 444
 445              /* first deduce as much as possible from the sysctls */
 446              mib[0] = CTL_MACHDEP;
 447 #ifdef CPU_FPU_PRESENT
 448              mib[1] = CPU_FPU_PRESENT;
 449              value[1] = sizeof(int);
 450              if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
 451                  if (value) PF[PF_FLOATING_POINT_EMULATED] = FALSE;
 452                  else       PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 453 #endif
 454 #ifdef CPU_SSE
 455              mib[1] = CPU_SSE;   /* this should imply MMX */
 456              value[1] = sizeof(int);
 457              if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
 458                  if (value) PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 459 #endif
 460 #ifdef CPU_SSE2
 461              mib[1] = CPU_SSE2;  /* this should imply MMX */
 462              value[1] = sizeof(int);
 463              if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
 464                  if (value) PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 465 #endif
 466              mib[0] = CTL_HW;
 467              mib[1] = HW_NCPU;
 468              value[1] = sizeof(int);
 469              if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
 470                  if (value[0] > cachedsi.dwNumberOfProcessors)
 471                     cachedsi.dwNumberOfProcessors = value[0];
 472              mib[1] = HW_MODEL;
 473              value[1] = 255;
 474              if (sysctl(mib, 2, model, value+1, NULL, 0) >= 0) {
 475                   model[value[1]] = '\0'; /* just in case */
 476                   cpuclass = strstr(model, "-class");
 477                   if (cpuclass != NULL) {
 478                        while(cpuclass > model && cpuclass[0] != '(') cpuclass--;
 479                        if (!strncmp(cpuclass+1, "386", 3)) {
 480                             cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 481                             cachedsi.wProcessorLevel= 3;
 482                        }
 483                        if (!strncmp(cpuclass+1, "486", 3)) {
 484                             cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 485                             cachedsi.wProcessorLevel= 4;
 486                        }
 487                        if (!strncmp(cpuclass+1, "586", 3)) {
 488                             cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 489                             cachedsi.wProcessorLevel= 5;
 490                        }
 491                        if (!strncmp(cpuclass+1, "686", 3)) {
 492                             cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 493                             cachedsi.wProcessorLevel= 6;
 494                             /* this should imply MMX */
 495                             PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 496                        }
 497                   }
 498              }
 499
 500              /* it may be worth reading from /var/run/dmesg.boot for
 501                 additional information such as CX8, MMX and TSC
 502                 (however this information should be considered less
 503                  reliable than that from the sysctl calls) */
 504              if (f != NULL)
 505              {
 506                  while (fgets(model, 255, f) != NULL) {
 507                         if (sscanf(model,"cpu%d: features %x<", value, value+1) == 2) {
 508                             /* we could scan the string but it is easier
 509                                to test the bits directly */
 510                             if (value[1] & 0x1)
 511                                 PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 512                             if (value[1] & 0x10)
 513                                 PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
 514                             if (value[1] & 0x100)
 515                                 PF[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
 516                             if (value[1] & 0x800000)
 517                                 PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 518
 519                             break;
 520                         }
 521                  }
 522                  fclose(f);
 523              }
 524
 525         }
 526         memcpy(si,&cachedsi,sizeof(*si));
 527 #elif defined(__FreeBSD__)
 528         {
 529         unsigned int regs[4], regs2[4];
 530         int ret, len, num;
 531         if (!have_cpuid())
 532                 regs[0] = 0;                    /* No cpuid support -- skip the rest */
 533         else
 534                 do_cpuid(0x00000000, regs);     /* get standard cpuid level and vendor name */
 535         if (regs[0]>=0x00000001) {              /* Check for supported cpuid version */
 536                 do_cpuid(0x00000001, regs2);    /* get cpu features */
 537                 switch ((regs2[0] >> 8)&0xf) {  /* cpu family */
 538                 case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 539                         cachedsi.wProcessorLevel = 3;
 540                         break;
 541                 case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 542                         cachedsi.wProcessorLevel = 4;
 543                         break;
 544                 case 5:
 545                         cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 546                         cachedsi.wProcessorLevel = 5;
 547                         break;
 548                 case 6:
 549                 case 15: /* PPro/2/3/4 has same info as P1 */
 550                         cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 551                         cachedsi.wProcessorLevel = 6;
 552                         break;
 553                 default:
 554                         FIXME("unknown FreeBSD cpu family %d, please report! (-> setting to 386)\n", \
 555                                 (regs2[0] >> 8)&0xf);
 556                         break;
 557                 }
 558                 PF[PF_FLOATING_POINT_EMULATED]     = !(regs2[3] & 1);
 559                 PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = (regs2[3] & (1 << 4 )) >> 4;
 560                 PF[PF_COMPARE_EXCHANGE_DOUBLE]     = (regs2[3] & (1 << 8 )) >> 8;
 561                 PF[PF_MMX_INSTRUCTIONS_AVAILABLE]  = (regs2[3] & (1 << 23)) >> 23;
 562                 /* Check for OS support of SSE -- Is this used, and should it be sse1 or sse2? */
 563                 /*len = sizeof(num);
 564                 ret = sysctlbyname("hw.instruction_sse", &num, &len, NULL, 0);
 565                 if (!ret)
 566                         PF[PF_XMMI_INSTRUCTIONS_AVAILABLE] = num;*/
 567
 568                 if (regs[1] == AUTH &&
 569                     regs[3] == ENTI &&
 570                     regs[2] == CAMD) {
 571                         do_cpuid(0x80000000, regs);             /* get vendor cpuid level */
 572                         if (regs[0]>=0x80000001) {
 573                                 do_cpuid(0x80000001, regs2);    /* get vendor features */
 574                                 PF[PF_3DNOW_INSTRUCTIONS_AVAILABLE] =
 575                                     (regs2[3] & (1 << 31 )) >> 31;
 576                         }
 577                 }
 578         }
 579         len = sizeof(num);
 580         ret = sysctlbyname("hw.ncpu", &num, &len, NULL, 0);
 581         if (!ret)
 582                 cachedsi.dwNumberOfProcessors = num;
 583         }
 584         memcpy(si,&cachedsi,sizeof(*si));
 585 #elif defined (__APPLE__)
 586         {
 587         size_t valSize;
 588         unsigned long long longVal;
 589         int value;
 590         int cputype;
 591
 592         valSize = sizeof(int);
 593         if (sysctlbyname ("hw.optional.floatingpoint", &value, &valSize, NULL, 0) == 0)
 594         {
 595             if (value)
 596                 PF[PF_FLOATING_POINT_EMULATED] = FALSE;
 597             else
 598                 PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 599         }
 600         valSize = sizeof(int);
 601         if (sysctlbyname ("hw.ncpu", &value, &valSize, NULL, 0) == 0)
 602         cachedsi.dwNumberOfProcessors = value;
 603
 604         valSize = sizeof(int);
 605         if (sysctlbyname ("hw.activecpu", &value, &valSize, NULL, 0) == 0)
 606             cachedsi.dwActiveProcessorMask = value;
 607
 608         valSize = sizeof(int);
 609         if (sysctlbyname ("hw.cputype", &cputype, &valSize, NULL, 0) == 0)
 610         {
 611             valSize = sizeof(int);
 612             if (sysctlbyname ("hw.cpusubtype", &value, &valSize, NULL, 0) == 0)
 613             {
 614                 switch (cputype)
 615                 {
 616                     case CPU_TYPE_POWERPC:
 617                         cachedsi.u.s.wProcessorArchitecture = PROCESSOR_ARCHITECTURE_PPC;
 618                         switch (value)
 619                         {
 620                             case CPU_SUBTYPE_POWERPC_601:
 621                             case CPU_SUBTYPE_POWERPC_602:
 622                                 cachedsi.dwProcessorType = PROCESSOR_PPC_601;
 623                                 cachedsi.wProcessorLevel = 1;
 624                                 break;
 625                             case CPU_SUBTYPE_POWERPC_603:
 626                                 cachedsi.dwProcessorType = PROCESSOR_PPC_603;
 627                                 cachedsi.wProcessorLevel = 3;
 628                                 break;
 629                             case CPU_SUBTYPE_POWERPC_603e:
 630                             case CPU_SUBTYPE_POWERPC_603ev:
 631                                 cachedsi.dwProcessorType = PROCESSOR_PPC_603;
 632                                 cachedsi.wProcessorLevel = 6;
 633                                 break;
 634                             case CPU_SUBTYPE_POWERPC_604:
 635                                 cachedsi.dwProcessorType = PROCESSOR_PPC_604;
 636                                 cachedsi.wProcessorLevel = 4;
 637                                 break;
 638                             case CPU_SUBTYPE_POWERPC_604e:
 639                                 cachedsi.dwProcessorType = PROCESSOR_PPC_604;
 640                                 cachedsi.wProcessorLevel = 9;
 641                                 break;
 642                             case CPU_SUBTYPE_POWERPC_620:
 643                                 cachedsi.dwProcessorType = PROCESSOR_PPC_620;
 644                                 cachedsi.wProcessorLevel = 20;
 645                                 break;
 646                             case CPU_SUBTYPE_POWERPC_750:
 647                             case CPU_SUBTYPE_POWERPC_7400:
 648                             case CPU_SUBTYPE_POWERPC_7450:
 649                                 /* G3/G4 derivate from 603 so ... */
 650                                 cachedsi.dwProcessorType = PROCESSOR_PPC_603;
 651                                 cachedsi.wProcessorLevel = 6;
 652                                 break;
 653                             case CPU_SUBTYPE_POWERPC_970:
 654                                 cachedsi.dwProcessorType = PROCESSOR_PPC_604;
 655                                 cachedsi.wProcessorLevel = 9;
 656                                 /* :o) PF[PF_ALTIVEC_INSTRUCTIONS_AVAILABLE] ;-) */
 657                                 break;
 658                             default: break;
 659                         }
 660                         break; /* CPU_TYPE_POWERPC */
 661                     case CPU_TYPE_I386:
 662                         cachedsi.u.s.wProcessorArchitecture = PROCESSOR_ARCHITECTURE_INTEL;
 663                         switch (value)
 664                         {
 665                             case CPU_SUBTYPE_386:
 666                                 cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 667                                 cachedsi.wProcessorLevel = 3;
 668                                 break;
 669                             case CPU_SUBTYPE_486:
 670                             case CPU_SUBTYPE_486SX:
 671                                 cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 672                                 cachedsi.wProcessorLevel = 4;
 673                                 break;
 674                             case CPU_SUBTYPE_586:
 675                             case CPU_SUBTYPE_PENTPRO:
 676                                 cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 677                                 cachedsi.wProcessorLevel = 5;
 678                                 break;
 679                             case CPU_SUBTYPE_PENTII_M3:
 680                             case CPU_SUBTYPE_PENTII_M5:
 681                                 cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 682                                 cachedsi.wProcessorLevel = 5;
 683                                 /* this should imply MMX */
 684                                 PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 685                                 break;
 686                             default: break;
 687                         }
 688                         break; /* CPU_TYPE_I386 */
 689                     default: break;
 690                 } /* switch (cputype) */
 691             }
 692         }
 693         valSize = sizeof(longVal);
 694         if (!sysctlbyname("hw.cpufrequency", &longVal, &valSize, NULL, 0))
 695             cpuHz = longVal;
 696         }
 697         memcpy(si,&cachedsi,sizeof(*si));
 698 #else
 699         FIXME("not yet supported on this system\n");
 700 #endif
 701         TRACE("<- CPU arch %d, res'd %d, pagesize %ld, minappaddr %p, maxappaddr %p,"
 702               " act.cpumask %08lx, numcpus %ld, CPU type %ld, allocgran. %ld, CPU level %d, CPU rev %d\n",
 703               si->u.s.wProcessorArchitecture, si->u.s.wReserved, si->dwPageSize,
 704               si->lpMinimumApplicationAddress, si->lpMaximumApplicationAddress,
 705               si->dwActiveProcessorMask, si->dwNumberOfProcessors, si->dwProcessorType,
 706               si->dwAllocationGranularity, si->wProcessorLevel, si->wProcessorRevision);
 707
 708         create_registry_keys( &cachedsi );
 709 }
 710
 711
 712 /***********************************************************************
 713  *                      IsProcessorFeaturePresent       [KERNEL32.@]
 714  *
 715  * Determine if the cpu supports a given feature.
 716  *
 717  * RETURNS
 718  *  TRUE, If the processor supports feature,
 719  *  FALSE otherwise.
 720  */
 721 BOOL WINAPI IsProcessorFeaturePresent (
 722         DWORD feature   /* [in] Feature number, (PF_ constants from "winnt.h") */)
 723 {
 724   SYSTEM_INFO si;
 725   GetSystemInfo (&si); /* To ensure the information is loaded and cached */
 726
 727   if (feature < 64)
 728     return PF[feature];
 729   else
 730     return FALSE;
 731 }