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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 #ifdef HAVE_MACH_MACHINE_H
  35 # include <mach/machine.h>
  36 #endif
  37
  38 #include <ctype.h>
  39 #include <string.h>
  40 #include <stdarg.h>
  41 #include <stdio.h>
  42 #include <stdlib.h>
  43 #ifdef HAVE_SYS_TIME_H
  44 # include <sys/time.h>
  45 #endif
  46
  47
  48 #define NONAMELESSUNION
  49 #define NONAMELESSSTRUCT
  50 #include "windef.h"
  51 #include "winbase.h"
  52 #include "winnt.h"
  53 #include "winternl.h"
  54 #include "winerror.h"
  55 #include "wine/unicode.h"
  56 #include "wine/debug.h"
  57
  58 WINE_DEFAULT_DEBUG_CHANNEL(reg);
  59
  60 #define AUTH    0x68747541      /* "Auth" */
  61 #define ENTI    0x69746e65      /* "enti" */
  62 #define CAMD    0x444d4163      /* "cAMD" */
  63
  64 /* Calls cpuid with an eax of 'ax' and returns the 16 bytes in *p
  65  * We are compiled with -fPIC, so we can't clobber ebx.
  66  */
  67 static inline void do_cpuid(int ax, int *p)
  68 {
  69 #ifdef __i386__
  70         __asm__("pushl %%ebx\n\t"
  71                 "cpuid\n\t"
  72                 "movl %%ebx, %%esi\n\t"
  73                 "popl %%ebx"
  74                 : "=a" (p[0]), "=S" (p[1]), "=c" (p[2]), "=d" (p[3])
  75                 :  "0" (ax));
  76 #endif
  77 }
  78
  79 /* From xf86info havecpuid.c 1.11 */
  80 static inline int have_cpuid(void)
  81 {
  82 #ifdef __i386__
  83         unsigned int f1, f2;
  84         __asm__("pushfl\n\t"
  85                 "pushfl\n\t"
  86                 "popl %0\n\t"
  87                 "movl %0,%1\n\t"
  88                 "xorl %2,%0\n\t"
  89                 "pushl %0\n\t"
  90                 "popfl\n\t"
  91                 "pushfl\n\t"
  92                 "popl %0\n\t"
  93                 "popfl"
  94                 : "=&r" (f1), "=&r" (f2)
  95                 : "ir" (0x00200000));
  96         return ((f1^f2) & 0x00200000) != 0;
  97 #else
  98         return 0;
  99 #endif
 100 }
 101
 102 static BYTE PF[64] = {0,};
 103 static ULONGLONG cpuHz = 1000000000; /* default to a 1GHz */
 104
 105 static void create_system_registry_keys( const SYSTEM_INFO *info )
 106 {
 107     static const WCHAR SystemW[] = {'M','a','c','h','i','n','e','\\',
 108                                     'H','a','r','d','w','a','r','e','\\',
 109                                     'D','e','s','c','r','i','p','t','i','o','n','\\',
 110                                     'S','y','s','t','e','m',0};
 111     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};
 112     static const WCHAR cpuW[] = {'C','e','n','t','r','a','l','P','r','o','c','e','s','s','o','r',0};
 113     static const WCHAR IdentifierW[] = {'I','d','e','n','t','i','f','i','e','r',0};
 114     static const WCHAR SysidW[] = {'A','T',' ','c','o','m','p','a','t','i','b','l','e',0};
 115     static const WCHAR mhzKeyW[] = {'~','M','H','z',0};
 116     static const WCHAR VendorIdentifierW[] = {'V','e','n','d','o','r','I','d','e','n','t','i','f','i','e','r',0};
 117     static const WCHAR VenidIntelW[] = {'G','e','n','u','i','n','e','I','n','t','e','l',0};
 118     /* static const WCHAR VenidAMDW[] = {'A','u','t','h','e','n','t','i','c','A','M','D',0}; */
 119
 120     unsigned int i;
 121     HANDLE hkey, system_key, cpu_key;
 122     OBJECT_ATTRIBUTES attr;
 123     UNICODE_STRING nameW, valueW;
 124
 125     attr.Length = sizeof(attr);
 126     attr.RootDirectory = 0;
 127     attr.ObjectName = &nameW;
 128     attr.Attributes = 0;
 129     attr.SecurityDescriptor = NULL;
 130     attr.SecurityQualityOfService = NULL;
 131
 132     RtlInitUnicodeString( &nameW, SystemW );
 133     if (NtCreateKey( &system_key, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL )) return;
 134
 135     RtlInitUnicodeString( &valueW, IdentifierW );
 136     NtSetValueKey( system_key, &valueW, 0, REG_SZ, SysidW, (strlenW(SysidW)+1) * sizeof(WCHAR) );
 137
 138     attr.RootDirectory = system_key;
 139     RtlInitUnicodeString( &nameW, fpuW );
 140     if (!NtCreateKey( &hkey, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL )) NtClose( hkey );
 141
 142     RtlInitUnicodeString( &nameW, cpuW );
 143     if (!NtCreateKey( &cpu_key, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL ))
 144     {
 145         for (i = 0; i < info->dwNumberOfProcessors; i++)
 146         {
 147             char num[10], id[60];
 148
 149             attr.RootDirectory = cpu_key;
 150             sprintf( num, "%d", i );
 151             RtlCreateUnicodeStringFromAsciiz( &nameW, num );
 152             if (!NtCreateKey( &hkey, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL ))
 153             {
 154                 WCHAR idW[60];
 155                 DWORD cpuMHz = cpuHz / 1000000;
 156
 157                 /*TODO: report 64bit processors properly*/
 158                 RtlInitUnicodeString( &valueW, IdentifierW );
 159                 sprintf( id, "x86 Family %d Model %d Stepping %d",
 160                          info->wProcessorLevel, HIBYTE(info->wProcessorRevision), LOBYTE(info->wProcessorRevision) );
 161
 162                 RtlMultiByteToUnicodeN( idW, sizeof(idW), NULL, id, strlen(id)+1 );
 163                 NtSetValueKey( hkey, &valueW, 0, REG_SZ, idW, (strlenW(idW)+1)*sizeof(WCHAR) );
 164
 165                 /*TODO; report amd's properly*/
 166                 RtlInitUnicodeString( &valueW, VendorIdentifierW );
 167                 NtSetValueKey( hkey, &valueW, 0, REG_SZ, VenidIntelW, (strlenW(VenidIntelW)+1) * sizeof(WCHAR) );
 168
 169                 RtlInitUnicodeString( &valueW, mhzKeyW );
 170                 NtSetValueKey( hkey, &valueW, 0, REG_DWORD, &cpuMHz, sizeof(DWORD) );
 171                 NtClose( hkey );
 172             }
 173             RtlFreeUnicodeString( &nameW );
 174         }
 175         NtClose( cpu_key );
 176     }
 177     NtClose( system_key );
 178 }
 179
 180 static void create_env_registry_keys( const SYSTEM_INFO *info )
 181 {
 182     static const WCHAR EnvironW[]  = {'M','a','c','h','i','n','e','\\',
 183                                       'S','y','s','t','e','m','\\',
 184                                       'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
 185                                       'C','o','n','t','r','o','l','\\',
 186                                       'S','e','s','s','i','o','n',' ','M','a','n','a','g','e','r','\\',
 187                                       'E','n','v','i','r','o','n','m','e','n','t',0};
 188     static const WCHAR NumProcW[]  = {'N','U','M','B','E','R','_','O','F','_','P','R','O','C','E','S','S','O','R','S',0};
 189     static const WCHAR ProcArchW[] = {'P','R','O','C','E','S','S','O','R','_','A','R','C','H','I','T','E','C','T','U','R','E',0};
 190     static const WCHAR x86W[]      = {'x','8','6',0};
 191     static const WCHAR ProcIdW[]   = {'P','R','O','C','E','S','S','O','R','_','I','D','E','N','T','I','F','I','E','R',0};
 192     static const WCHAR ProcLvlW[]  = {'P','R','O','C','E','S','S','O','R','_','L','E','V','E','L',0};
 193     static const WCHAR ProcRevW[]  = {'P','R','O','C','E','S','S','O','R','_','R','E','V','I','S','I','O','N',0};
 194
 195     HANDLE env_key;
 196     OBJECT_ATTRIBUTES attr;
 197     UNICODE_STRING nameW, valueW;
 198
 199     char nProc[10],id[60],procLevel[10],rev[10];
 200     WCHAR nProcW[10],idW[60],procLevelW[10],revW[10];
 201
 202     /* Create some keys under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment.
 203      * All these environment variables are processor related and will be read during process initialization and hence
 204      * show up in the environment of that process.
 205      */
 206
 207     attr.Length = sizeof(attr);
 208     attr.RootDirectory = 0;
 209     attr.ObjectName = &nameW;
 210     attr.Attributes = 0;
 211     attr.SecurityDescriptor = NULL;
 212     attr.SecurityQualityOfService = NULL;
 213
 214     RtlInitUnicodeString( &nameW, EnvironW );
 215     if (NtCreateKey( &env_key, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL )) return;
 216
 217     sprintf( nProc, "%ld", info->dwNumberOfProcessors );
 218     RtlMultiByteToUnicodeN( nProcW, sizeof(nProcW), NULL, nProc, strlen(nProc)+1 );
 219     RtlInitUnicodeString( &valueW, NumProcW );
 220     NtSetValueKey( env_key, &valueW, 0, REG_SZ, nProcW, (strlenW(nProcW)+1)*sizeof(WCHAR) );
 221
 222     /* TODO: currently hardcoded x86, add different processors */
 223     RtlInitUnicodeString( &valueW, ProcArchW );
 224     NtSetValueKey( env_key, &valueW, 0, REG_SZ, x86W, (strlenW(x86W)+1) * sizeof(WCHAR) );
 225
 226     /* TODO: currently hardcoded Intel, add different processors */
 227     sprintf( id, "x86 Family %d Model %d Stepping %d, GenuineIntel",
 228         info->wProcessorLevel, HIBYTE(info->wProcessorRevision), LOBYTE(info->wProcessorRevision) );
 229     RtlMultiByteToUnicodeN( idW, sizeof(idW), NULL, id, strlen(id)+1 );
 230     RtlInitUnicodeString( &valueW, ProcIdW );
 231     NtSetValueKey( env_key, &valueW, 0, REG_SZ, idW, (strlenW(idW)+1)*sizeof(WCHAR) );
 232
 233     sprintf( procLevel, "%d", info->wProcessorLevel );
 234     RtlMultiByteToUnicodeN( procLevelW, sizeof(procLevelW), NULL, procLevel, strlen(procLevel)+1 );
 235     RtlInitUnicodeString( &valueW, ProcLvlW );
 236     NtSetValueKey( env_key, &valueW, 0, REG_SZ, procLevelW, (strlenW(procLevelW)+1)*sizeof(WCHAR) );
 237
 238     /* Properly report model/stepping */
 239     sprintf( rev, "%04x", info->wProcessorRevision);
 240     RtlMultiByteToUnicodeN( revW, sizeof(revW), NULL, rev, strlen(rev)+1 );
 241     RtlInitUnicodeString( &valueW, ProcRevW );
 242     NtSetValueKey( env_key, &valueW, 0, REG_SZ, revW, (strlenW(revW)+1)*sizeof(WCHAR) );
 243
 244     NtClose( env_key );
 245 }
 246
 247 /****************************************************************************
 248  *              QueryPerformanceCounter (KERNEL32.@)
 249  *
 250  * Get the current value of the performance counter.
 251  *
 252  * PARAMS
 253  *  counter [O] Destination for the current counter reading
 254  *
 255  * RETURNS
 256  *  Success: TRUE. counter contains the current reading
 257  *  Failure: FALSE.
 258  *
 259  * SEE ALSO
 260  *  See QueryPerformanceFrequency.
 261  */
 262 BOOL WINAPI QueryPerformanceCounter(PLARGE_INTEGER counter)
 263 {
 264     NtQueryPerformanceCounter( counter, NULL );
 265     return TRUE;
 266 }
 267
 268
 269 /****************************************************************************
 270  *              QueryPerformanceFrequency (KERNEL32.@)
 271  *
 272  * Get the resolution of the performace counter.
 273  *
 274  * PARAMS
 275  *  frequency [O] Destination for the counter resolution
 276  *
 277  * RETURNS
 278  *  Success. TRUE. Frequency contains the resolution of the counter.
 279  *  Failure: FALSE.
 280  *
 281  * SEE ALSO
 282  *  See QueryPerformanceCounter.
 283  */
 284 BOOL WINAPI QueryPerformanceFrequency(PLARGE_INTEGER frequency)
 285 {
 286     LARGE_INTEGER counter;
 287     NtQueryPerformanceCounter( &counter, frequency );
 288     return TRUE;
 289 }
 290
 291
 292 /***********************************************************************
 293  *                      GetSystemInfo                   [KERNEL32.@]
 294  *
 295  * Get information about the system.
 296  *
 297  * RETURNS
 298  *  Nothing.
 299  *
 300  * NOTES
 301  * On the first call it creates cached values, so it doesn't have to determine
 302  * them repeatedly. On Linux, the "/proc/cpuinfo" special file is used.
 303  *
 304  * It creates a registry subhierarchy, looking like:
 305  * "\HARDWARE\DESCRIPTION\System\CentralProcessor\<processornumber>\Identifier (CPU x86)".
 306  * Note that there is a hierarchy for every processor installed, so this
 307  * supports multiprocessor systems. This is done like Win95 does it, I think.
 308  *
 309  * It creates some registry entries in the environment part:
 310  * "\HKLM\System\CurrentControlSet\Control\Session Manager\Environment". These are
 311  * always present. When deleted, Windows will add them again.
 312  *
 313  * It also creates a cached flag array for IsProcessorFeaturePresent().
 314  */
 315 VOID WINAPI GetSystemInfo(
 316         LPSYSTEM_INFO si        /* [out] Destination for system information, may not be NULL */)
 317 {
 318         static int cache = 0;
 319         static SYSTEM_INFO cachedsi;
 320
 321         TRACE("si=0x%p\n", si);
 322         if (cache) {
 323                 memcpy(si,&cachedsi,sizeof(*si));
 324                 return;
 325         }
 326         memset(PF,0,sizeof(PF));
 327
 328         /* choose sensible defaults ...
 329          * FIXME: perhaps overrideable with precompiler flags?
 330          */
 331         cachedsi.u.s.wProcessorArchitecture     = PROCESSOR_ARCHITECTURE_INTEL;
 332         cachedsi.dwPageSize                     = getpagesize();
 333
 334         /* FIXME: the two entries below should be computed somehow... */
 335         cachedsi.lpMinimumApplicationAddress    = (void *)0x00010000;
 336         cachedsi.lpMaximumApplicationAddress    = (void *)0x7FFEFFFF;
 337         cachedsi.dwActiveProcessorMask          = 1;
 338         cachedsi.dwNumberOfProcessors           = 1;
 339         cachedsi.dwProcessorType                = PROCESSOR_INTEL_PENTIUM;
 340         cachedsi.dwAllocationGranularity        = 0x10000;
 341         cachedsi.wProcessorLevel                = 5; /* 586 */
 342         cachedsi.wProcessorRevision             = 0;
 343
 344         cache = 1; /* even if there is no more info, we now have a cacheentry */
 345         memcpy(si,&cachedsi,sizeof(*si));
 346
 347         /* Hmm, reasonable processor feature defaults? */
 348
 349 #ifdef linux
 350         {
 351         char line[200];
 352         FILE *f = fopen ("/proc/cpuinfo", "r");
 353
 354         if (!f)
 355                 return;
 356         while (fgets(line,200,f)!=NULL) {
 357                 char    *s,*value;
 358
 359                 /* NOTE: the ':' is the only character we can rely on */
 360                 if (!(value = strchr(line,':')))
 361                         continue;
 362
 363                 /* terminate the valuename */
 364                 s = value - 1;
 365                 while ((s >= line) && ((*s == ' ') || (*s == '\t'))) s--;
 366                 *(s + 1) = '\0';
 367
 368                 /* and strip leading spaces from value */
 369                 value += 1;
 370                 while (*value==' ') value++;
 371                 if ((s=strchr(value,'\n')))
 372                         *s='\0';
 373
 374                 if (!strcasecmp(line,"processor")) {
 375                         /* processor number counts up... */
 376                         unsigned int x;
 377
 378                         if (sscanf(value,"%d",&x))
 379                                 if (x+1>cachedsi.dwNumberOfProcessors)
 380                                         cachedsi.dwNumberOfProcessors=x+1;
 381
 382                         continue;
 383                 }
 384                 if (!strcasecmp(line,"model")) {
 385                         /* First part of wProcessorRevision */
 386                         int     x;
 387
 388                         if (sscanf(value,"%d",&x))
 389                                 cachedsi.wProcessorRevision = cachedsi.wProcessorRevision | (x << 8);
 390
 391                         continue;
 392                 }
 393
 394                 /* 2.1 method */
 395                 if (!strcasecmp(line, "cpu family")) {
 396                         if (isdigit (value[0])) {
 397                                 switch (value[0] - '0') {
 398                                 case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 399                                         cachedsi.wProcessorLevel= 3;
 400                                         break;
 401                                 case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 402                                         cachedsi.wProcessorLevel= 4;
 403                                         break;
 404                                 case 5: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 405                                         cachedsi.wProcessorLevel= 5;
 406                                         break;
 407                                 case 6: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 408                                         cachedsi.wProcessorLevel= 6;
 409                                         break;
 410                                 case 1: /* two-figure levels */
 411                                     if (value[1] == '5')
 412                                     {
 413                                         cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 414                                         cachedsi.wProcessorLevel= 6;
 415                                         break;
 416                                     }
 417                                     /* fall through */
 418                                 default:
 419                                         FIXME("unknown cpu family '%s', please report ! (-> setting to 386)\n", value);
 420                                         break;
 421                                 }
 422                         }
 423                         continue;
 424                 }
 425                 /* old 2.0 method */
 426                 if (!strcasecmp(line, "cpu")) {
 427                         if (    isdigit (value[0]) && value[1] == '8' &&
 428                                 value[2] == '6' && value[3] == 0
 429                         ) {
 430                                 switch (value[0] - '0') {
 431                                 case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 432                                         cachedsi.wProcessorLevel= 3;
 433                                         break;
 434                                 case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 435                                         cachedsi.wProcessorLevel= 4;
 436                                         break;
 437                                 case 5: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 438                                         cachedsi.wProcessorLevel= 5;
 439                                         break;
 440                                 case 6: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 441                                         cachedsi.wProcessorLevel= 6;
 442                                         break;
 443                                 default:
 444                                         FIXME("unknown Linux 2.0 cpu family '%s', please report ! (-> setting to 386)\n", value);
 445                                         break;
 446                                 }
 447                         }
 448                         continue;
 449                 }
 450                 if (!strcasecmp(line,"stepping")) {
 451                         /* Second part of wProcessorRevision */
 452                         int     x;
 453
 454                         if (sscanf(value,"%d",&x))
 455                                 cachedsi.wProcessorRevision = cachedsi.wProcessorRevision | x;
 456
 457                         continue;
 458                 }
 459                 if (!strcasecmp(line, "cpu MHz")) {
 460                         double cmz;
 461                         if (sscanf( value, "%lf", &cmz ) == 1) {
 462                                 /* SYSTEMINFO doesn't have a slot for cpu speed, so store in a global */
 463                                 cpuHz = cmz * 1000 * 1000;
 464                                 TRACE("CPU speed read as %lld\n", cpuHz);
 465                         }
 466                         continue;
 467                 }
 468                 if (!strcasecmp(line,"fdiv_bug")) {
 469                         if (!strncasecmp(value,"yes",3))
 470                                 PF[PF_FLOATING_POINT_PRECISION_ERRATA] = TRUE;
 471
 472                         continue;
 473                 }
 474                 if (!strcasecmp(line,"fpu")) {
 475                         if (!strncasecmp(value,"no",2))
 476                                 PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 477
 478                         continue;
 479                 }
 480                 if (    !strcasecmp(line,"flags")       ||
 481                         !strcasecmp(line,"features")) {
 482                         if (strstr(value,"cx8"))
 483                                 PF[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
 484                         if (strstr(value,"mmx"))
 485                                 PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 486                         if (strstr(value,"tsc"))
 487                                 PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
 488                         if (strstr(value,"3dnow"))
 489                                 PF[PF_3DNOW_INSTRUCTIONS_AVAILABLE] = TRUE;
 490                         /* This will also catch sse2, but we have sse itself
 491                          * if we have sse2, so no problem */
 492                         if (strstr(value,"sse"))
 493                                 PF[PF_XMMI_INSTRUCTIONS_AVAILABLE] = TRUE;
 494                         if (strstr(value,"sse2"))
 495                                 PF[PF_XMMI64_INSTRUCTIONS_AVAILABLE] = TRUE;
 496                         if (strstr(value,"pae"))
 497                                 PF[PF_PAE_ENABLED] = TRUE;
 498
 499                         continue;
 500                 }
 501         }
 502         fclose (f);
 503         }
 504         memcpy(si,&cachedsi,sizeof(*si));
 505 #elif defined (__NetBSD__)
 506         {
 507              int mib[2];
 508              int value[2];
 509              char model[256];
 510              char *cpuclass;
 511              FILE *f = fopen ("/var/run/dmesg.boot", "r");
 512
 513              /* first deduce as much as possible from the sysctls */
 514              mib[0] = CTL_MACHDEP;
 515 #ifdef CPU_FPU_PRESENT
 516              mib[1] = CPU_FPU_PRESENT;
 517              value[1] = sizeof(int);
 518              if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
 519                  if (value) PF[PF_FLOATING_POINT_EMULATED] = FALSE;
 520                  else       PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 521 #endif
 522 #ifdef CPU_SSE
 523              mib[1] = CPU_SSE;   /* this should imply MMX */
 524              value[1] = sizeof(int);
 525              if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
 526                  if (value) PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 527 #endif
 528 #ifdef CPU_SSE2
 529              mib[1] = CPU_SSE2;  /* this should imply MMX */
 530              value[1] = sizeof(int);
 531              if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
 532                  if (value) PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 533 #endif
 534              mib[0] = CTL_HW;
 535              mib[1] = HW_NCPU;
 536              value[1] = sizeof(int);
 537              if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
 538                  if (value[0] > cachedsi.dwNumberOfProcessors)
 539                     cachedsi.dwNumberOfProcessors = value[0];
 540              mib[1] = HW_MODEL;
 541              value[1] = 255;
 542              if (sysctl(mib, 2, model, value+1, NULL, 0) >= 0) {
 543                   model[value[1]] = '\0'; /* just in case */
 544                   cpuclass = strstr(model, "-class");
 545                   if (cpuclass != NULL) {
 546                        while(cpuclass > model && cpuclass[0] != '(') cpuclass--;
 547                        if (!strncmp(cpuclass+1, "386", 3)) {
 548                             cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 549                             cachedsi.wProcessorLevel= 3;
 550                        }
 551                        if (!strncmp(cpuclass+1, "486", 3)) {
 552                             cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 553                             cachedsi.wProcessorLevel= 4;
 554                        }
 555                        if (!strncmp(cpuclass+1, "586", 3)) {
 556                             cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 557                             cachedsi.wProcessorLevel= 5;
 558                        }
 559                        if (!strncmp(cpuclass+1, "686", 3)) {
 560                             cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 561                             cachedsi.wProcessorLevel= 6;
 562                             /* this should imply MMX */
 563                             PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 564                        }
 565                   }
 566              }
 567
 568              /* it may be worth reading from /var/run/dmesg.boot for
 569                 additional information such as CX8, MMX and TSC
 570                 (however this information should be considered less
 571                  reliable than that from the sysctl calls) */
 572              if (f != NULL)
 573              {
 574                  while (fgets(model, 255, f) != NULL) {
 575                         if (sscanf(model,"cpu%d: features %x<", value, value+1) == 2) {
 576                             /* we could scan the string but it is easier
 577                                to test the bits directly */
 578                             if (value[1] & 0x1)
 579                                 PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 580                             if (value[1] & 0x10)
 581                                 PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
 582                             if (value[1] & 0x100)
 583                                 PF[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
 584                             if (value[1] & 0x800000)
 585                                 PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 586
 587                             break;
 588                         }
 589                  }
 590                  fclose(f);
 591              }
 592
 593         }
 594         memcpy(si,&cachedsi,sizeof(*si));
 595 #elif defined(__FreeBSD__)
 596         {
 597         unsigned int regs[4], regs2[4];
 598         int ret, len, num;
 599         if (!have_cpuid())
 600                 regs[0] = 0;                    /* No cpuid support -- skip the rest */
 601         else
 602                 do_cpuid(0x00000000, regs);     /* get standard cpuid level and vendor name */
 603         if (regs[0]>=0x00000001) {              /* Check for supported cpuid version */
 604                 do_cpuid(0x00000001, regs2);    /* get cpu features */
 605                 switch ((regs2[0] >> 8)&0xf) {  /* cpu family */
 606                 case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 607                         cachedsi.wProcessorLevel = 3;
 608                         break;
 609                 case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 610                         cachedsi.wProcessorLevel = 4;
 611                         break;
 612                 case 5:
 613                         cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 614                         cachedsi.wProcessorLevel = 5;
 615                         break;
 616                 case 6:
 617                 case 15: /* PPro/2/3/4 has same info as P1 */
 618                         cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 619                         cachedsi.wProcessorLevel = 6;
 620                         break;
 621                 default:
 622                         FIXME("unknown FreeBSD cpu family %d, please report! (-> setting to 386)\n", \
 623                                 (regs2[0] >> 8)&0xf);
 624                         break;
 625                 }
 626                 PF[PF_FLOATING_POINT_EMULATED]     = !(regs2[3] & 1);
 627                 PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = (regs2[3] & (1 << 4 )) >> 4;
 628                 PF[PF_COMPARE_EXCHANGE_DOUBLE]     = (regs2[3] & (1 << 8 )) >> 8;
 629                 PF[PF_MMX_INSTRUCTIONS_AVAILABLE]  = (regs2[3] & (1 << 23)) >> 23;
 630                 /* Check for OS support of SSE -- Is this used, and should it be sse1 or sse2? */
 631                 /*len = sizeof(num);
 632                 ret = sysctlbyname("hw.instruction_sse", &num, &len, NULL, 0);
 633                 if (!ret)
 634                         PF[PF_XMMI_INSTRUCTIONS_AVAILABLE] = num;*/
 635
 636                 if (regs[1] == AUTH &&
 637                     regs[3] == ENTI &&
 638                     regs[2] == CAMD) {
 639                         do_cpuid(0x80000000, regs);             /* get vendor cpuid level */
 640                         if (regs[0]>=0x80000001) {
 641                                 do_cpuid(0x80000001, regs2);    /* get vendor features */
 642                                 PF[PF_3DNOW_INSTRUCTIONS_AVAILABLE] =
 643                                     (regs2[3] & (1 << 31 )) >> 31;
 644                         }
 645                 }
 646         }
 647         len = sizeof(num);
 648         ret = sysctlbyname("hw.ncpu", &num, &len, NULL, 0);
 649         if (!ret)
 650                 cachedsi.dwNumberOfProcessors = num;
 651         }
 652         memcpy(si,&cachedsi,sizeof(*si));
 653 #elif defined (__APPLE__)
 654         {
 655         size_t valSize;
 656         unsigned long long longVal;
 657         int value;
 658         int cputype;
 659
 660         valSize = sizeof(int);
 661         if (sysctlbyname ("hw.optional.floatingpoint", &value, &valSize, NULL, 0) == 0)
 662         {
 663             if (value)
 664                 PF[PF_FLOATING_POINT_EMULATED] = FALSE;
 665             else
 666                 PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 667         }
 668         valSize = sizeof(int);
 669         if (sysctlbyname ("hw.ncpu", &value, &valSize, NULL, 0) == 0)
 670         cachedsi.dwNumberOfProcessors = value;
 671
 672         valSize = sizeof(int);
 673         if (sysctlbyname ("hw.activecpu", &value, &valSize, NULL, 0) == 0)
 674             cachedsi.dwActiveProcessorMask = value;
 675
 676         valSize = sizeof(int);
 677         if (sysctlbyname ("hw.cputype", &cputype, &valSize, NULL, 0) == 0)
 678         {
 679             valSize = sizeof(int);
 680             if (sysctlbyname ("hw.cpusubtype", &value, &valSize, NULL, 0) == 0)
 681             {
 682                 switch (cputype)
 683                 {
 684                     case CPU_TYPE_POWERPC:
 685                         cachedsi.u.s.wProcessorArchitecture = PROCESSOR_ARCHITECTURE_PPC;
 686                         switch (value)
 687                         {
 688                             case CPU_SUBTYPE_POWERPC_601:
 689                             case CPU_SUBTYPE_POWERPC_602:
 690                                 cachedsi.dwProcessorType = PROCESSOR_PPC_601;
 691                                 cachedsi.wProcessorLevel = 1;
 692                                 break;
 693                             case CPU_SUBTYPE_POWERPC_603:
 694                                 cachedsi.dwProcessorType = PROCESSOR_PPC_603;
 695                                 cachedsi.wProcessorLevel = 3;
 696                                 break;
 697                             case CPU_SUBTYPE_POWERPC_603e:
 698                             case CPU_SUBTYPE_POWERPC_603ev:
 699                                 cachedsi.dwProcessorType = PROCESSOR_PPC_603;
 700                                 cachedsi.wProcessorLevel = 6;
 701                                 break;
 702                             case CPU_SUBTYPE_POWERPC_604:
 703                                 cachedsi.dwProcessorType = PROCESSOR_PPC_604;
 704                                 cachedsi.wProcessorLevel = 4;
 705                                 break;
 706                             case CPU_SUBTYPE_POWERPC_604e:
 707                                 cachedsi.dwProcessorType = PROCESSOR_PPC_604;
 708                                 cachedsi.wProcessorLevel = 9;
 709                                 break;
 710                             case CPU_SUBTYPE_POWERPC_620:
 711                                 cachedsi.dwProcessorType = PROCESSOR_PPC_620;
 712                                 cachedsi.wProcessorLevel = 20;
 713                                 break;
 714                             case CPU_SUBTYPE_POWERPC_750:
 715                             case CPU_SUBTYPE_POWERPC_7400:
 716                             case CPU_SUBTYPE_POWERPC_7450:
 717                                 /* G3/G4 derivate from 603 so ... */
 718                                 cachedsi.dwProcessorType = PROCESSOR_PPC_603;
 719                                 cachedsi.wProcessorLevel = 6;
 720                                 break;
 721                             case CPU_SUBTYPE_POWERPC_970:
 722                                 cachedsi.dwProcessorType = PROCESSOR_PPC_604;
 723                                 cachedsi.wProcessorLevel = 9;
 724                                 /* :o) PF[PF_ALTIVEC_INSTRUCTIONS_AVAILABLE] ;-) */
 725                                 break;
 726                             default: break;
 727                         }
 728                         break; /* CPU_TYPE_POWERPC */
 729                     case CPU_TYPE_I386:
 730                         cachedsi.u.s.wProcessorArchitecture = PROCESSOR_ARCHITECTURE_INTEL;
 731                         switch (value)
 732                         {
 733                             case CPU_SUBTYPE_386:
 734                                 cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 735                                 cachedsi.wProcessorLevel = 3;
 736                                 break;
 737                             case CPU_SUBTYPE_486:
 738                             case CPU_SUBTYPE_486SX:
 739                                 cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 740                                 cachedsi.wProcessorLevel = 4;
 741                                 break;
 742                             case CPU_SUBTYPE_586:
 743                             case CPU_SUBTYPE_PENTPRO:
 744                                 cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 745                                 cachedsi.wProcessorLevel = 5;
 746                                 break;
 747                             case CPU_SUBTYPE_PENTII_M3:
 748                             case CPU_SUBTYPE_PENTII_M5:
 749                                 cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 750                                 cachedsi.wProcessorLevel = 5;
 751                                 /* this should imply MMX */
 752                                 PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 753                                 break;
 754                             default: break;
 755                         }
 756                         break; /* CPU_TYPE_I386 */
 757                     default: break;
 758                 } /* switch (cputype) */
 759             }
 760         }
 761         valSize = sizeof(longVal);
 762         if (!sysctlbyname("hw.cpufrequency", &longVal, &valSize, NULL, 0))
 763             cpuHz = longVal;
 764         }
 765         memcpy(si,&cachedsi,sizeof(*si));
 766 #else
 767         FIXME("not yet supported on this system\n");
 768 #endif
 769         TRACE("<- CPU arch %d, res'd %d, pagesize %ld, minappaddr %p, maxappaddr %p,"
 770               " act.cpumask %08lx, numcpus %ld, CPU type %ld, allocgran. %ld, CPU level %d, CPU rev %d\n",
 771               si->u.s.wProcessorArchitecture, si->u.s.wReserved, si->dwPageSize,
 772               si->lpMinimumApplicationAddress, si->lpMaximumApplicationAddress,
 773               si->dwActiveProcessorMask, si->dwNumberOfProcessors, si->dwProcessorType,
 774               si->dwAllocationGranularity, si->wProcessorLevel, si->wProcessorRevision);
 775
 776         create_system_registry_keys( &cachedsi );
 777         create_env_registry_keys( &cachedsi );
 778 }
 779
 780
 781 /***********************************************************************
 782  *                      IsProcessorFeaturePresent       [KERNEL32.@]
 783  *
 784  * Determine if the cpu supports a given feature.
 785  *
 786  * RETURNS
 787  *  TRUE, If the processor supports feature,
 788  *  FALSE otherwise.
 789  */
 790 BOOL WINAPI IsProcessorFeaturePresent (
 791         DWORD feature   /* [in] Feature number, (PF_ constants from "winnt.h") */)
 792 {
 793   SYSTEM_INFO si;
 794   GetSystemInfo (&si); /* To ensure the information is loaded and cached */
 795
 796   if (feature < 64)
 797     return PF[feature];
 798   else
 799     return FALSE;
 800 }