git.oblomov.eu Git - wine/blob - dlls/kernel32/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 "wine/unicode.h"
  55 #include "wine/debug.h"
  56
  57 WINE_DEFAULT_DEBUG_CHANNEL(reg);
  58
  59 #define AUTH    0x68747541      /* "Auth" */
  60 #define ENTI    0x69746e65      /* "enti" */
  61 #define CAMD    0x444d4163      /* "cAMD" */
  62
  63 /* Calls cpuid with an eax of 'ax' and returns the 16 bytes in *p
  64  * We are compiled with -fPIC, so we can't clobber ebx.
  65  */
  66 static inline void do_cpuid(unsigned int ax, unsigned int *p)
  67 {
  68 #ifdef __i386__
  69         __asm__("pushl %%ebx\n\t"
  70                 "cpuid\n\t"
  71                 "movl %%ebx, %%esi\n\t"
  72                 "popl %%ebx"
  73                 : "=a" (p[0]), "=S" (p[1]), "=c" (p[2]), "=d" (p[3])
  74                 :  "0" (ax));
  75 #endif
  76 }
  77
  78 /* From xf86info havecpuid.c 1.11 */
  79 static inline int have_cpuid(void)
  80 {
  81 #ifdef __i386__
  82         unsigned int f1, f2;
  83         __asm__("pushfl\n\t"
  84                 "pushfl\n\t"
  85                 "popl %0\n\t"
  86                 "movl %0,%1\n\t"
  87                 "xorl %2,%0\n\t"
  88                 "pushl %0\n\t"
  89                 "popfl\n\t"
  90                 "pushfl\n\t"
  91                 "popl %0\n\t"
  92                 "popfl"
  93                 : "=&r" (f1), "=&r" (f2)
  94                 : "ir" (0x00200000));
  95         return ((f1^f2) & 0x00200000) != 0;
  96 #else
  97         return 0;
  98 #endif
  99 }
 100
 101 static BYTE PF[64] = {0,};
 102 static ULONGLONG cpuHz = 1000000000; /* default to a 1GHz */
 103
 104 static void create_system_registry_keys( const SYSTEM_INFO *info )
 105 {
 106     static const WCHAR SystemW[] = {'M','a','c','h','i','n','e','\\',
 107                                     'H','a','r','d','w','a','r','e','\\',
 108                                     'D','e','s','c','r','i','p','t','i','o','n','\\',
 109                                     'S','y','s','t','e','m',0};
 110     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};
 111     static const WCHAR cpuW[] = {'C','e','n','t','r','a','l','P','r','o','c','e','s','s','o','r',0};
 112     static const WCHAR IdentifierW[] = {'I','d','e','n','t','i','f','i','e','r',0};
 113     static const WCHAR SysidW[] = {'A','T',' ','c','o','m','p','a','t','i','b','l','e',0};
 114     static const WCHAR mhzKeyW[] = {'~','M','H','z',0};
 115     static const WCHAR VendorIdentifierW[] = {'V','e','n','d','o','r','I','d','e','n','t','i','f','i','e','r',0};
 116     static const WCHAR VenidIntelW[] = {'G','e','n','u','i','n','e','I','n','t','e','l',0};
 117     /* static const WCHAR VenidAMDW[] = {'A','u','t','h','e','n','t','i','c','A','M','D',0}; */
 118
 119     unsigned int i;
 120     HANDLE hkey, system_key, cpu_key;
 121     OBJECT_ATTRIBUTES attr;
 122     UNICODE_STRING nameW, valueW;
 123
 124     attr.Length = sizeof(attr);
 125     attr.RootDirectory = 0;
 126     attr.ObjectName = &nameW;
 127     attr.Attributes = 0;
 128     attr.SecurityDescriptor = NULL;
 129     attr.SecurityQualityOfService = NULL;
 130
 131     RtlInitUnicodeString( &nameW, SystemW );
 132     if (NtCreateKey( &system_key, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL )) return;
 133
 134     RtlInitUnicodeString( &valueW, IdentifierW );
 135     NtSetValueKey( system_key, &valueW, 0, REG_SZ, SysidW, sizeof(SysidW) );
 136
 137     attr.RootDirectory = system_key;
 138     RtlInitUnicodeString( &nameW, fpuW );
 139     if (!NtCreateKey( &hkey, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL )) NtClose( hkey );
 140
 141     RtlInitUnicodeString( &nameW, cpuW );
 142     if (!NtCreateKey( &cpu_key, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL ))
 143     {
 144         for (i = 0; i < info->dwNumberOfProcessors; i++)
 145         {
 146             char num[10], id[60];
 147
 148             attr.RootDirectory = cpu_key;
 149             sprintf( num, "%d", i );
 150             RtlCreateUnicodeStringFromAsciiz( &nameW, num );
 151             if (!NtCreateKey( &hkey, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL ))
 152             {
 153                 WCHAR idW[60];
 154                 DWORD sizeW;
 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), &sizeW, id, strlen(id)+1 );
 163                 NtSetValueKey( hkey, &valueW, 0, REG_SZ, idW, sizeW );
 164
 165                 /*TODO; report amd's properly*/
 166                 RtlInitUnicodeString( &valueW, VendorIdentifierW );
 167                 NtSetValueKey( hkey, &valueW, 0, REG_SZ, VenidIntelW, sizeof(VenidIntelW) );
 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     DWORD sizeW;
 199
 200     char nProc[10],id[60],procLevel[10],rev[10];
 201     WCHAR nProcW[10],idW[60],procLevelW[10],revW[10];
 202
 203     /* Create some keys under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment.
 204      * All these environment variables are processor related and will be read during process initialization and hence
 205      * show up in the environment of that process.
 206      */
 207
 208     attr.Length = sizeof(attr);
 209     attr.RootDirectory = 0;
 210     attr.ObjectName = &nameW;
 211     attr.Attributes = 0;
 212     attr.SecurityDescriptor = NULL;
 213     attr.SecurityQualityOfService = NULL;
 214
 215     RtlInitUnicodeString( &nameW, EnvironW );
 216     if (NtCreateKey( &env_key, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL )) return;
 217
 218     sprintf( nProc, "%d", info->dwNumberOfProcessors );
 219     RtlMultiByteToUnicodeN( nProcW, sizeof(nProcW), &sizeW, nProc, strlen(nProc)+1 );
 220     RtlInitUnicodeString( &valueW, NumProcW );
 221     NtSetValueKey( env_key, &valueW, 0, REG_SZ, nProcW, sizeW );
 222
 223     /* TODO: currently hardcoded x86, add different processors */
 224     RtlInitUnicodeString( &valueW, ProcArchW );
 225     NtSetValueKey( env_key, &valueW, 0, REG_SZ, x86W, sizeof(x86W) );
 226
 227     /* TODO: currently hardcoded Intel, add different processors */
 228     sprintf( id, "x86 Family %d Model %d Stepping %d, GenuineIntel",
 229         info->wProcessorLevel, HIBYTE(info->wProcessorRevision), LOBYTE(info->wProcessorRevision) );
 230     RtlMultiByteToUnicodeN( idW, sizeof(idW), &sizeW, id, strlen(id)+1 );
 231     RtlInitUnicodeString( &valueW, ProcIdW );
 232     NtSetValueKey( env_key, &valueW, 0, REG_SZ, idW, sizeW );
 233
 234     sprintf( procLevel, "%d", info->wProcessorLevel );
 235     RtlMultiByteToUnicodeN( procLevelW, sizeof(procLevelW), &sizeW, procLevel, strlen(procLevel)+1 );
 236     RtlInitUnicodeString( &valueW, ProcLvlW );
 237     NtSetValueKey( env_key, &valueW, 0, REG_SZ, procLevelW, sizeW );
 238
 239     /* Properly report model/stepping */
 240     sprintf( rev, "%04x", info->wProcessorRevision);
 241     RtlMultiByteToUnicodeN( revW, sizeof(revW), &sizeW, rev, strlen(rev)+1 );
 242     RtlInitUnicodeString( &valueW, ProcRevW );
 243     NtSetValueKey( env_key, &valueW, 0, REG_SZ, revW, sizeW );
 244
 245     NtClose( env_key );
 246 }
 247
 248 static inline void get_cpuinfo( SYSTEM_INFO *info )
 249 {
 250     unsigned int regs[4], regs2[4];
 251
 252     if (!have_cpuid()) return;
 253
 254     do_cpuid(0x00000000, regs);  /* get standard cpuid level and vendor name */
 255     if (regs[0]>=0x00000001)   /* Check for supported cpuid version */
 256     {
 257         do_cpuid(0x00000001, regs2); /* get cpu features */
 258         switch ((regs2[0] >> 8) & 0xf)  /* cpu family */
 259         {
 260         case 3:
 261             info->dwProcessorType = PROCESSOR_INTEL_386;
 262             info->wProcessorLevel = 3;
 263             break;
 264         case 4:
 265             info->dwProcessorType = PROCESSOR_INTEL_486;
 266             info->wProcessorLevel = 4;
 267             break;
 268         case 5:
 269             info->dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 270             info->wProcessorLevel = 5;
 271             break;
 272         case 6:
 273         case 15: /* PPro/2/3/4 has same info as P1 */
 274             info->dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 275             info->wProcessorLevel = 6;
 276             break;
 277         default:
 278             FIXME("unknown cpu family %d, please report! (-> setting to 386)\n",
 279                   (regs2[0] >> 8)&0xf);
 280             break;
 281         }
 282         PF[PF_FLOATING_POINT_EMULATED]     = !(regs2[3] & 1);
 283         PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = (regs2[3] & (1 << 4 )) >> 4;
 284         PF[PF_COMPARE_EXCHANGE_DOUBLE]     = (regs2[3] & (1 << 8 )) >> 8;
 285         PF[PF_MMX_INSTRUCTIONS_AVAILABLE]  = (regs2[3] & (1 << 23)) >> 23;
 286
 287         if (regs[1] == AUTH &&
 288             regs[3] == ENTI &&
 289             regs[2] == CAMD) {
 290             do_cpuid(0x80000000, regs);  /* get vendor cpuid level */
 291             if (regs[0]>=0x80000001) {
 292                 do_cpuid(0x80000001, regs2);  /* get vendor features */
 293                 PF[PF_3DNOW_INSTRUCTIONS_AVAILABLE] = (regs2[3] & (1 << 31 )) >> 31;
 294             }
 295         }
 296     }
 297 }
 298
 299 /****************************************************************************
 300  *              QueryPerformanceCounter (KERNEL32.@)
 301  *
 302  * Get the current value of the performance counter.
 303  *
 304  * PARAMS
 305  *  counter [O] Destination for the current counter reading
 306  *
 307  * RETURNS
 308  *  Success: TRUE. counter contains the current reading
 309  *  Failure: FALSE.
 310  *
 311  * SEE ALSO
 312  *  See QueryPerformanceFrequency.
 313  */
 314 BOOL WINAPI QueryPerformanceCounter(PLARGE_INTEGER counter)
 315 {
 316     NtQueryPerformanceCounter( counter, NULL );
 317     return TRUE;
 318 }
 319
 320
 321 /****************************************************************************
 322  *              QueryPerformanceFrequency (KERNEL32.@)
 323  *
 324  * Get the resolution of the performance counter.
 325  *
 326  * PARAMS
 327  *  frequency [O] Destination for the counter resolution
 328  *
 329  * RETURNS
 330  *  Success. TRUE. Frequency contains the resolution of the counter.
 331  *  Failure: FALSE.
 332  *
 333  * SEE ALSO
 334  *  See QueryPerformanceCounter.
 335  */
 336 BOOL WINAPI QueryPerformanceFrequency(PLARGE_INTEGER frequency)
 337 {
 338     LARGE_INTEGER counter;
 339     NtQueryPerformanceCounter( &counter, frequency );
 340     return TRUE;
 341 }
 342
 343
 344 /***********************************************************************
 345  *                      GetSystemInfo                   [KERNEL32.@]
 346  *
 347  * Get information about the system.
 348  *
 349  * RETURNS
 350  *  Nothing.
 351  *
 352  * NOTES
 353  * On the first call it creates cached values, so it doesn't have to determine
 354  * them repeatedly. On Linux, the "/proc/cpuinfo" special file is used.
 355  *
 356  * It creates a registry subhierarchy, looking like:
 357  * "\HARDWARE\DESCRIPTION\System\CentralProcessor\<processornumber>\Identifier (CPU x86)".
 358  * Note that there is a hierarchy for every processor installed, so this
 359  * supports multiprocessor systems. This is done like Win95 does it, I think.
 360  *
 361  * It creates some registry entries in the environment part:
 362  * "\HKLM\System\CurrentControlSet\Control\Session Manager\Environment". These are
 363  * always present. When deleted, Windows will add them again.
 364  *
 365  * It also creates a cached flag array for IsProcessorFeaturePresent().
 366  */
 367 VOID WINAPI GetSystemInfo(
 368         LPSYSTEM_INFO si        /* [out] Destination for system information, may not be NULL */)
 369 {
 370         static int cache = 0;
 371         static SYSTEM_INFO cachedsi;
 372         SYSTEM_BASIC_INFORMATION sbi;
 373
 374         TRACE("si=0x%p\n", si);
 375         if (cache) {
 376                 *si = cachedsi;
 377                 return;
 378         }
 379         memset(PF,0,sizeof(PF));
 380
 381         NtQuerySystemInformation( SystemBasicInformation, &sbi, sizeof(sbi), NULL );
 382         cachedsi.dwPageSize                  = sbi.uPageSize;
 383         cachedsi.lpMinimumApplicationAddress = sbi.pLowestUserAddress;
 384         cachedsi.lpMaximumApplicationAddress = sbi.pMmHighestUserAddress;
 385         cachedsi.dwNumberOfProcessors        = sbi.uKeActiveProcessors;
 386         cachedsi.dwAllocationGranularity     = sbi.uAllocationGranularity;
 387
 388         /* choose sensible defaults ...
 389          * FIXME: perhaps overridable with precompiler flags?
 390          */
 391         cachedsi.u.s.wProcessorArchitecture     = PROCESSOR_ARCHITECTURE_INTEL;
 392         cachedsi.dwActiveProcessorMask          = 0;
 393         cachedsi.dwProcessorType                = PROCESSOR_INTEL_PENTIUM;
 394         cachedsi.wProcessorLevel                = 5; /* 586 */
 395         cachedsi.wProcessorRevision             = 0;
 396
 397         cache = 1; /* even if there is no more info, we now have a cache entry */
 398         *si = cachedsi;
 399
 400         /* Hmm, reasonable processor feature defaults? */
 401
 402 #ifdef linux
 403         {
 404         char line[200];
 405         FILE *f = fopen ("/proc/cpuinfo", "r");
 406
 407         if (!f)
 408                 return;
 409         while (fgets(line,200,f)!=NULL) {
 410                 char    *s,*value;
 411
 412                 /* NOTE: the ':' is the only character we can rely on */
 413                 if (!(value = strchr(line,':')))
 414                         continue;
 415
 416                 /* terminate the valuename */
 417                 s = value - 1;
 418                 while ((s >= line) && ((*s == ' ') || (*s == '\t'))) s--;
 419                 *(s + 1) = '\0';
 420
 421                 /* and strip leading spaces from value */
 422                 value += 1;
 423                 while (*value==' ') value++;
 424                 if ((s=strchr(value,'\n')))
 425                         *s='\0';
 426
 427                 if (!strcasecmp(line,"processor")) {
 428                         /* processor number counts up... */
 429                         unsigned int x;
 430
 431                         if (sscanf(value,"%d",&x))
 432                                 if (x+1>cachedsi.dwNumberOfProcessors)
 433                                         cachedsi.dwNumberOfProcessors=x+1;
 434
 435                         continue;
 436                 }
 437                 if (!strcasecmp(line,"model")) {
 438                         /* First part of wProcessorRevision */
 439                         int     x;
 440
 441                         if (sscanf(value,"%d",&x))
 442                                 cachedsi.wProcessorRevision = cachedsi.wProcessorRevision | (x << 8);
 443
 444                         continue;
 445                 }
 446
 447                 /* 2.1 method */
 448                 if (!strcasecmp(line, "cpu family")) {
 449                         if (isdigit (value[0])) {
 450                                 switch (value[0] - '0') {
 451                                 case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 452                                         cachedsi.wProcessorLevel= 3;
 453                                         break;
 454                                 case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 455                                         cachedsi.wProcessorLevel= 4;
 456                                         break;
 457                                 case 5: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 458                                         cachedsi.wProcessorLevel= 5;
 459                                         break;
 460
 461                                 default:
 462                                         cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 463                                         cachedsi.wProcessorLevel = atoi(value);
 464                                         break;
 465                                 }
 466                         }
 467                         continue;
 468                 }
 469                 /* old 2.0 method */
 470                 if (!strcasecmp(line, "cpu")) {
 471                         if (    isdigit (value[0]) && value[1] == '8' &&
 472                                 value[2] == '6' && value[3] == 0
 473                         ) {
 474                                 switch (value[0] - '0') {
 475                                 case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 476                                         cachedsi.wProcessorLevel= 3;
 477                                         break;
 478                                 case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 479                                         cachedsi.wProcessorLevel= 4;
 480                                         break;
 481                                 case 5: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 482                                         cachedsi.wProcessorLevel= 5;
 483                                         break;
 484                                 case 6: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 485                                         cachedsi.wProcessorLevel= 6;
 486                                         break;
 487                                 default:
 488                                         FIXME("unknown Linux 2.0 cpu family '%s', please report ! (-> setting to 386)\n", value);
 489                                         break;
 490                                 }
 491                         }
 492                         continue;
 493                 }
 494                 if (!strcasecmp(line,"stepping")) {
 495                         /* Second part of wProcessorRevision */
 496                         int     x;
 497
 498                         if (sscanf(value,"%d",&x))
 499                                 cachedsi.wProcessorRevision = cachedsi.wProcessorRevision | x;
 500
 501                         continue;
 502                 }
 503                 if (!strcasecmp(line, "cpu MHz")) {
 504                         double cmz;
 505                         if (sscanf( value, "%lf", &cmz ) == 1) {
 506                                 /* SYSTEMINFO doesn't have a slot for cpu speed, so store in a global */
 507                                 cpuHz = cmz * 1000 * 1000;
 508                         }
 509                         continue;
 510                 }
 511                 if (!strcasecmp(line,"fdiv_bug")) {
 512                         if (!strncasecmp(value,"yes",3))
 513                                 PF[PF_FLOATING_POINT_PRECISION_ERRATA] = TRUE;
 514
 515                         continue;
 516                 }
 517                 if (!strcasecmp(line,"fpu")) {
 518                         if (!strncasecmp(value,"no",2))
 519                                 PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 520
 521                         continue;
 522                 }
 523                 if (    !strcasecmp(line,"flags")       ||
 524                         !strcasecmp(line,"features")) {
 525                         if (strstr(value,"cx8"))
 526                                 PF[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
 527                         if (strstr(value,"mmx"))
 528                                 PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 529                         if (strstr(value,"tsc"))
 530                                 PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
 531                         if (strstr(value,"3dnow"))
 532                                 PF[PF_3DNOW_INSTRUCTIONS_AVAILABLE] = TRUE;
 533                         /* This will also catch sse2, but we have sse itself
 534                          * if we have sse2, so no problem */
 535                         if (strstr(value,"sse"))
 536                                 PF[PF_XMMI_INSTRUCTIONS_AVAILABLE] = TRUE;
 537                         if (strstr(value,"sse2"))
 538                                 PF[PF_XMMI64_INSTRUCTIONS_AVAILABLE] = TRUE;
 539                         if (strstr(value,"pae"))
 540                                 PF[PF_PAE_ENABLED] = TRUE;
 541
 542                         continue;
 543                 }
 544         }
 545         fclose (f);
 546         }
 547 #elif defined (__NetBSD__)
 548         {
 549              int mib[2];
 550              int value;
 551              size_t val_len;
 552              char model[256];
 553              char *cpuclass;
 554              FILE *f = fopen ("/var/run/dmesg.boot", "r");
 555
 556              /* first deduce as much as possible from the sysctls */
 557              mib[0] = CTL_MACHDEP;
 558 #ifdef CPU_FPU_PRESENT
 559              mib[1] = CPU_FPU_PRESENT;
 560              val_len = sizeof(value);
 561              if (sysctl(mib, 2, &value, &val_len, NULL, 0) >= 0)
 562                  PF[PF_FLOATING_POINT_EMULATED] = !value;
 563 #endif
 564 #ifdef CPU_SSE
 565              mib[1] = CPU_SSE;   /* this should imply MMX */
 566              val_len = sizeof(value);
 567              if (sysctl(mib, 2, &value, &val_len, NULL, 0) >= 0)
 568                  if (value) PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 569 #endif
 570 #ifdef CPU_SSE2
 571              mib[1] = CPU_SSE2;  /* this should imply MMX */
 572              val_len = sizeof(value);
 573              if (sysctl(mib, 2, &value, &val_len, NULL, 0) >= 0)
 574                  if (value) PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 575 #endif
 576              mib[0] = CTL_HW;
 577              mib[1] = HW_NCPU;
 578              val_len = sizeof(value);
 579              if (sysctl(mib, 2, &value, &val_len, NULL, 0) >= 0)
 580                  if (value > cachedsi.dwNumberOfProcessors)
 581                     cachedsi.dwNumberOfProcessors = value;
 582              mib[1] = HW_MODEL;
 583              val_len = sizeof(model)-1;
 584              if (sysctl(mib, 2, model, &val_len, NULL, 0) >= 0) {
 585                   model[val_len] = '\0'; /* just in case */
 586                   cpuclass = strstr(model, "-class");
 587                   if (cpuclass != NULL) {
 588                        while(cpuclass > model && cpuclass[0] != '(') cpuclass--;
 589                        if (!strncmp(cpuclass+1, "386", 3)) {
 590                             cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 591                             cachedsi.wProcessorLevel= 3;
 592                        }
 593                        if (!strncmp(cpuclass+1, "486", 3)) {
 594                             cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 595                             cachedsi.wProcessorLevel= 4;
 596                        }
 597                        if (!strncmp(cpuclass+1, "586", 3)) {
 598                             cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 599                             cachedsi.wProcessorLevel= 5;
 600                        }
 601                        if (!strncmp(cpuclass+1, "686", 3)) {
 602                             cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 603                             cachedsi.wProcessorLevel= 6;
 604                             /* this should imply MMX */
 605                             PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 606                        }
 607                   }
 608              }
 609
 610              /* it may be worth reading from /var/run/dmesg.boot for
 611                 additional information such as CX8, MMX and TSC
 612                 (however this information should be considered less
 613                  reliable than that from the sysctl calls) */
 614              if (f != NULL)
 615              {
 616                  while (fgets(model, 255, f) != NULL) {
 617                         int cpu, features;
 618                         if (sscanf(model,"cpu%d: features %x<", &cpu, &features) == 2) {
 619                             /* we could scan the string but it is easier
 620                                to test the bits directly */
 621                             if (features & 0x1)
 622                                 PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 623                             if (features & 0x10)
 624                                 PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
 625                             if (features & 0x100)
 626                                 PF[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
 627                             if (features & 0x800000)
 628                                 PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 629
 630                             break;
 631                         }
 632                  }
 633                  fclose(f);
 634              }
 635
 636         }
 637 #elif defined(__FreeBSD__)
 638         {
 639         int ret, num;
 640         size_t len;
 641
 642         get_cpuinfo( &cachedsi );
 643
 644         /* Check for OS support of SSE -- Is this used, and should it be sse1 or sse2? */
 645         /*len = sizeof(num);
 646           ret = sysctlbyname("hw.instruction_sse", &num, &len, NULL, 0);
 647           if (!ret)
 648           PF[PF_XMMI_INSTRUCTIONS_AVAILABLE] = num;*/
 649
 650         len = sizeof(num);
 651         ret = sysctlbyname("hw.ncpu", &num, &len, NULL, 0);
 652         if (!ret)
 653                 cachedsi.dwNumberOfProcessors = num;
 654         }
 655 #elif defined(__sun)
 656         {
 657             int num = sysconf( _SC_NPROCESSORS_ONLN );
 658
 659             if (num == -1) num = 1;
 660             get_cpuinfo( &cachedsi );
 661             cachedsi.dwNumberOfProcessors = num;
 662         }
 663 #elif defined (__APPLE__)
 664         {
 665         size_t valSize;
 666         unsigned long long longVal;
 667         int value;
 668         int cputype;
 669         char buffer[256];
 670
 671         valSize = sizeof(int);
 672         if (sysctlbyname ("hw.optional.floatingpoint", &value, &valSize, NULL, 0) == 0)
 673         {
 674             if (value)
 675                 PF[PF_FLOATING_POINT_EMULATED] = FALSE;
 676             else
 677                 PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 678         }
 679         valSize = sizeof(int);
 680         if (sysctlbyname ("hw.ncpu", &value, &valSize, NULL, 0) == 0)
 681             cachedsi.dwNumberOfProcessors = value;
 682
 683         valSize = sizeof(int);
 684         if (sysctlbyname ("hw.activecpu", &value, &valSize, NULL, 0) == 0)
 685             cachedsi.dwActiveProcessorMask = ((ULONG_PTR)1 << value) - 1;
 686
 687         valSize = sizeof(int);
 688         if (sysctlbyname ("hw.cputype", &cputype, &valSize, NULL, 0) == 0)
 689         {
 690             switch (cputype)
 691             {
 692             case CPU_TYPE_POWERPC:
 693                 cachedsi.u.s.wProcessorArchitecture = PROCESSOR_ARCHITECTURE_PPC;
 694                 valSize = sizeof(int);
 695                 if (sysctlbyname ("hw.cpusubtype", &value, &valSize, NULL, 0) == 0)
 696                 {
 697                         switch (value)
 698                         {
 699                             case CPU_SUBTYPE_POWERPC_601:
 700                             case CPU_SUBTYPE_POWERPC_602:
 701                                 cachedsi.dwProcessorType = PROCESSOR_PPC_601;
 702                                 cachedsi.wProcessorLevel = 1;
 703                                 break;
 704                             case CPU_SUBTYPE_POWERPC_603:
 705                                 cachedsi.dwProcessorType = PROCESSOR_PPC_603;
 706                                 cachedsi.wProcessorLevel = 3;
 707                                 break;
 708                             case CPU_SUBTYPE_POWERPC_603e:
 709                             case CPU_SUBTYPE_POWERPC_603ev:
 710                                 cachedsi.dwProcessorType = PROCESSOR_PPC_603;
 711                                 cachedsi.wProcessorLevel = 6;
 712                                 break;
 713                             case CPU_SUBTYPE_POWERPC_604:
 714                                 cachedsi.dwProcessorType = PROCESSOR_PPC_604;
 715                                 cachedsi.wProcessorLevel = 4;
 716                                 break;
 717                             case CPU_SUBTYPE_POWERPC_604e:
 718                                 cachedsi.dwProcessorType = PROCESSOR_PPC_604;
 719                                 cachedsi.wProcessorLevel = 9;
 720                                 break;
 721                             case CPU_SUBTYPE_POWERPC_620:
 722                                 cachedsi.dwProcessorType = PROCESSOR_PPC_620;
 723                                 cachedsi.wProcessorLevel = 20;
 724                                 break;
 725                             case CPU_SUBTYPE_POWERPC_750:
 726                             case CPU_SUBTYPE_POWERPC_7400:
 727                             case CPU_SUBTYPE_POWERPC_7450:
 728                                 /* G3/G4 derive from 603 so ... */
 729                                 cachedsi.dwProcessorType = PROCESSOR_PPC_603;
 730                                 cachedsi.wProcessorLevel = 6;
 731                                 break;
 732                             case CPU_SUBTYPE_POWERPC_970:
 733                                 cachedsi.dwProcessorType = PROCESSOR_PPC_604;
 734                                 cachedsi.wProcessorLevel = 9;
 735                                 /* :o) PF[PF_ALTIVEC_INSTRUCTIONS_AVAILABLE] ;-) */
 736                                 break;
 737                             default: break;
 738                         }
 739                 }
 740                 break; /* CPU_TYPE_POWERPC */
 741             case CPU_TYPE_I386:
 742                 cachedsi.u.s.wProcessorArchitecture = PROCESSOR_ARCHITECTURE_INTEL;
 743                 valSize = sizeof(int);
 744                 if (sysctlbyname ("machdep.cpu.family", &value, &valSize, NULL, 0) == 0)
 745                 {
 746                     cachedsi.wProcessorLevel = value;
 747                     switch (value)
 748                     {
 749                     case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386; break;
 750                     case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486; break;
 751                     default: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM; break;
 752                     }
 753                 }
 754                 valSize = sizeof(int);
 755                 if (sysctlbyname ("machdep.cpu.model", &value, &valSize, NULL, 0) == 0)
 756                     cachedsi.wProcessorRevision = (value << 8);
 757                 valSize = sizeof(int);
 758                 if (sysctlbyname ("machdep.cpu.stepping", &value, &valSize, NULL, 0) == 0)
 759                     cachedsi.wProcessorRevision |= value;
 760                 valSize = sizeof(buffer);
 761                 if (sysctlbyname ("machdep.cpu.features", buffer, &valSize, NULL, 0) == 0)
 762                 {
 763                     cachedsi.wProcessorRevision |= value;
 764                     if (strstr(buffer,"CX8"))  PF[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
 765                     if (strstr(buffer,"MMX"))   PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 766                     if (strstr(buffer,"TSC"))   PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
 767                     if (strstr(buffer,"3DNOW")) PF[PF_3DNOW_INSTRUCTIONS_AVAILABLE] = TRUE;
 768                     if (strstr(buffer,"SSE"))   PF[PF_XMMI_INSTRUCTIONS_AVAILABLE] = TRUE;
 769                     if (strstr(buffer,"SSE2"))  PF[PF_XMMI64_INSTRUCTIONS_AVAILABLE] = TRUE;
 770                     if (strstr(buffer,"PAE"))   PF[PF_PAE_ENABLED] = TRUE;
 771                 }
 772                 break; /* CPU_TYPE_I386 */
 773             default: break;
 774             } /* switch (cputype) */
 775         }
 776         valSize = sizeof(longVal);
 777         if (!sysctlbyname("hw.cpufrequency", &longVal, &valSize, NULL, 0))
 778             cpuHz = longVal;
 779         }
 780 #else
 781         FIXME("not yet supported on this system\n");
 782 #endif
 783         if (!cachedsi.dwActiveProcessorMask)
 784             cachedsi.dwActiveProcessorMask = ((ULONG_PTR)1 << cachedsi.dwNumberOfProcessors) - 1;
 785
 786         *si = cachedsi;
 787
 788         TRACE("<- CPU arch %d, res'd %d, pagesize %d, minappaddr %p, maxappaddr %p,"
 789               " act.cpumask %lx, numcpus %d, CPU type %d, allocgran. %d, CPU level %d, CPU rev %d\n",
 790               si->u.s.wProcessorArchitecture, si->u.s.wReserved, si->dwPageSize,
 791               si->lpMinimumApplicationAddress, si->lpMaximumApplicationAddress,
 792               si->dwActiveProcessorMask, si->dwNumberOfProcessors, si->dwProcessorType,
 793               si->dwAllocationGranularity, si->wProcessorLevel, si->wProcessorRevision);
 794
 795         create_system_registry_keys( &cachedsi );
 796         create_env_registry_keys( &cachedsi );
 797 }
 798
 799
 800 /***********************************************************************
 801  *                      GetNativeSystemInfo             [KERNEL32.@]
 802  */
 803 VOID WINAPI GetNativeSystemInfo(
 804     LPSYSTEM_INFO si    /* [out] Destination for system information, may not be NULL */)
 805 {
 806     static BOOL reported = FALSE;
 807     if (!reported) {
 808         FIXME("(%p) using GetSystemInfo()\n", si);
 809         reported = TRUE;
 810     } else
 811         TRACE("(%p) using GetSystemInfo()\n", si);
 812     GetSystemInfo(si);
 813 }
 814
 815 /***********************************************************************
 816  *                      IsProcessorFeaturePresent       [KERNEL32.@]
 817  *
 818  * Determine if the cpu supports a given feature.
 819  *
 820  * RETURNS
 821  *  TRUE, If the processor supports feature,
 822  *  FALSE otherwise.
 823  */
 824 BOOL WINAPI IsProcessorFeaturePresent (
 825         DWORD feature   /* [in] Feature number, (PF_ constants from "winnt.h") */)
 826 {
 827   SYSTEM_INFO si;
 828   GetSystemInfo (&si); /* To ensure the information is loaded and cached */
 829
 830   if (feature < 64)
 831     return PF[feature];
 832   else
 833     return FALSE;
 834 }