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 "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(unsigned int ax, unsigned 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, "%d", 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 static inline void get_cpuinfo( SYSTEM_INFO *info )
 248 {
 249     unsigned int regs[4], regs2[4];
 250
 251     if (!have_cpuid()) return;
 252
 253     do_cpuid(0x00000000, regs);  /* get standard cpuid level and vendor name */
 254     if (regs[0]>=0x00000001)   /* Check for supported cpuid version */
 255     {
 256         do_cpuid(0x00000001, regs2); /* get cpu features */
 257         switch ((regs2[0] >> 8) & 0xf)  /* cpu family */
 258         {
 259         case 3:
 260             info->dwProcessorType = PROCESSOR_INTEL_386;
 261             info->wProcessorLevel = 3;
 262             break;
 263         case 4:
 264             info->dwProcessorType = PROCESSOR_INTEL_486;
 265             info->wProcessorLevel = 4;
 266             break;
 267         case 5:
 268             info->dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 269             info->wProcessorLevel = 5;
 270             break;
 271         case 6:
 272         case 15: /* PPro/2/3/4 has same info as P1 */
 273             info->dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 274             info->wProcessorLevel = 6;
 275             break;
 276         default:
 277             FIXME("unknown cpu family %d, please report! (-> setting to 386)\n",
 278                   (regs2[0] >> 8)&0xf);
 279             break;
 280         }
 281         PF[PF_FLOATING_POINT_EMULATED]     = !(regs2[3] & 1);
 282         PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = (regs2[3] & (1 << 4 )) >> 4;
 283         PF[PF_COMPARE_EXCHANGE_DOUBLE]     = (regs2[3] & (1 << 8 )) >> 8;
 284         PF[PF_MMX_INSTRUCTIONS_AVAILABLE]  = (regs2[3] & (1 << 23)) >> 23;
 285
 286         if (regs[1] == AUTH &&
 287             regs[3] == ENTI &&
 288             regs[2] == CAMD) {
 289             do_cpuid(0x80000000, regs);  /* get vendor cpuid level */
 290             if (regs[0]>=0x80000001) {
 291                 do_cpuid(0x80000001, regs2);  /* get vendor features */
 292                 PF[PF_3DNOW_INSTRUCTIONS_AVAILABLE] = (regs2[3] & (1 << 31 )) >> 31;
 293             }
 294         }
 295     }
 296 }
 297
 298 /****************************************************************************
 299  *              QueryPerformanceCounter (KERNEL32.@)
 300  *
 301  * Get the current value of the performance counter.
 302  *
 303  * PARAMS
 304  *  counter [O] Destination for the current counter reading
 305  *
 306  * RETURNS
 307  *  Success: TRUE. counter contains the current reading
 308  *  Failure: FALSE.
 309  *
 310  * SEE ALSO
 311  *  See QueryPerformanceFrequency.
 312  */
 313 BOOL WINAPI QueryPerformanceCounter(PLARGE_INTEGER counter)
 314 {
 315     NtQueryPerformanceCounter( counter, NULL );
 316     return TRUE;
 317 }
 318
 319
 320 /****************************************************************************
 321  *              QueryPerformanceFrequency (KERNEL32.@)
 322  *
 323  * Get the resolution of the performace counter.
 324  *
 325  * PARAMS
 326  *  frequency [O] Destination for the counter resolution
 327  *
 328  * RETURNS
 329  *  Success. TRUE. Frequency contains the resolution of the counter.
 330  *  Failure: FALSE.
 331  *
 332  * SEE ALSO
 333  *  See QueryPerformanceCounter.
 334  */
 335 BOOL WINAPI QueryPerformanceFrequency(PLARGE_INTEGER frequency)
 336 {
 337     LARGE_INTEGER counter;
 338     NtQueryPerformanceCounter( &counter, frequency );
 339     return TRUE;
 340 }
 341
 342
 343 /***********************************************************************
 344  *                      GetSystemInfo                   [KERNEL32.@]
 345  *
 346  * Get information about the system.
 347  *
 348  * RETURNS
 349  *  Nothing.
 350  *
 351  * NOTES
 352  * On the first call it creates cached values, so it doesn't have to determine
 353  * them repeatedly. On Linux, the "/proc/cpuinfo" special file is used.
 354  *
 355  * It creates a registry subhierarchy, looking like:
 356  * "\HARDWARE\DESCRIPTION\System\CentralProcessor\<processornumber>\Identifier (CPU x86)".
 357  * Note that there is a hierarchy for every processor installed, so this
 358  * supports multiprocessor systems. This is done like Win95 does it, I think.
 359  *
 360  * It creates some registry entries in the environment part:
 361  * "\HKLM\System\CurrentControlSet\Control\Session Manager\Environment". These are
 362  * always present. When deleted, Windows will add them again.
 363  *
 364  * It also creates a cached flag array for IsProcessorFeaturePresent().
 365  */
 366 VOID WINAPI GetSystemInfo(
 367         LPSYSTEM_INFO si        /* [out] Destination for system information, may not be NULL */)
 368 {
 369         static int cache = 0;
 370         static SYSTEM_INFO cachedsi;
 371
 372         TRACE("si=0x%p\n", si);
 373         if (cache) {
 374                 memcpy(si,&cachedsi,sizeof(*si));
 375                 return;
 376         }
 377         memset(PF,0,sizeof(PF));
 378
 379         /* choose sensible defaults ...
 380          * FIXME: perhaps overridable with precompiler flags?
 381          */
 382         cachedsi.u.s.wProcessorArchitecture     = PROCESSOR_ARCHITECTURE_INTEL;
 383         cachedsi.dwPageSize                     = getpagesize();
 384
 385         /* FIXME: the two entries below should be computed somehow... */
 386         cachedsi.lpMinimumApplicationAddress    = (void *)0x00010000;
 387         cachedsi.lpMaximumApplicationAddress    = (void *)0x7FFEFFFF;
 388         cachedsi.dwActiveProcessorMask          = 1;
 389         cachedsi.dwNumberOfProcessors           = 1;
 390         cachedsi.dwProcessorType                = PROCESSOR_INTEL_PENTIUM;
 391         cachedsi.dwAllocationGranularity        = 0x10000;
 392         cachedsi.wProcessorLevel                = 5; /* 586 */
 393         cachedsi.wProcessorRevision             = 0;
 394
 395         cache = 1; /* even if there is no more info, we now have a cache entry */
 396         memcpy(si,&cachedsi,sizeof(*si));
 397
 398         /* Hmm, reasonable processor feature defaults? */
 399
 400 #ifdef linux
 401         {
 402         char line[200];
 403         FILE *f = fopen ("/proc/cpuinfo", "r");
 404
 405         if (!f)
 406                 return;
 407         while (fgets(line,200,f)!=NULL) {
 408                 char    *s,*value;
 409
 410                 /* NOTE: the ':' is the only character we can rely on */
 411                 if (!(value = strchr(line,':')))
 412                         continue;
 413
 414                 /* terminate the valuename */
 415                 s = value - 1;
 416                 while ((s >= line) && ((*s == ' ') || (*s == '\t'))) s--;
 417                 *(s + 1) = '\0';
 418
 419                 /* and strip leading spaces from value */
 420                 value += 1;
 421                 while (*value==' ') value++;
 422                 if ((s=strchr(value,'\n')))
 423                         *s='\0';
 424
 425                 if (!strcasecmp(line,"processor")) {
 426                         /* processor number counts up... */
 427                         unsigned int x;
 428
 429                         if (sscanf(value,"%d",&x))
 430                                 if (x+1>cachedsi.dwNumberOfProcessors)
 431                                         cachedsi.dwNumberOfProcessors=x+1;
 432
 433                         continue;
 434                 }
 435                 if (!strcasecmp(line,"model")) {
 436                         /* First part of wProcessorRevision */
 437                         int     x;
 438
 439                         if (sscanf(value,"%d",&x))
 440                                 cachedsi.wProcessorRevision = cachedsi.wProcessorRevision | (x << 8);
 441
 442                         continue;
 443                 }
 444
 445                 /* 2.1 method */
 446                 if (!strcasecmp(line, "cpu family")) {
 447                         if (isdigit (value[0])) {
 448                                 switch (value[0] - '0') {
 449                                 case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 450                                         cachedsi.wProcessorLevel= 3;
 451                                         break;
 452                                 case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 453                                         cachedsi.wProcessorLevel= 4;
 454                                         break;
 455                                 case 5: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 456                                         cachedsi.wProcessorLevel= 5;
 457                                         break;
 458                                 case 6: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 459                                         cachedsi.wProcessorLevel= 6;
 460                                         break;
 461                                 case 1: /* two-figure levels */
 462                                     if (value[1] == '5')
 463                                     {
 464                                         cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 465                                         cachedsi.wProcessorLevel= 6;
 466                                         break;
 467                                     }
 468                                     /* fall through */
 469                                 default:
 470                                         FIXME("unknown cpu family '%s', please report ! (-> setting to 386)\n", value);
 471                                         break;
 472                                 }
 473                         }
 474                         continue;
 475                 }
 476                 /* old 2.0 method */
 477                 if (!strcasecmp(line, "cpu")) {
 478                         if (    isdigit (value[0]) && value[1] == '8' &&
 479                                 value[2] == '6' && value[3] == 0
 480                         ) {
 481                                 switch (value[0] - '0') {
 482                                 case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 483                                         cachedsi.wProcessorLevel= 3;
 484                                         break;
 485                                 case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 486                                         cachedsi.wProcessorLevel= 4;
 487                                         break;
 488                                 case 5: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 489                                         cachedsi.wProcessorLevel= 5;
 490                                         break;
 491                                 case 6: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 492                                         cachedsi.wProcessorLevel= 6;
 493                                         break;
 494                                 default:
 495                                         FIXME("unknown Linux 2.0 cpu family '%s', please report ! (-> setting to 386)\n", value);
 496                                         break;
 497                                 }
 498                         }
 499                         continue;
 500                 }
 501                 if (!strcasecmp(line,"stepping")) {
 502                         /* Second part of wProcessorRevision */
 503                         int     x;
 504
 505                         if (sscanf(value,"%d",&x))
 506                                 cachedsi.wProcessorRevision = cachedsi.wProcessorRevision | x;
 507
 508                         continue;
 509                 }
 510                 if (!strcasecmp(line, "cpu MHz")) {
 511                         double cmz;
 512                         if (sscanf( value, "%lf", &cmz ) == 1) {
 513                                 /* SYSTEMINFO doesn't have a slot for cpu speed, so store in a global */
 514                                 cpuHz = cmz * 1000 * 1000;
 515                         }
 516                         continue;
 517                 }
 518                 if (!strcasecmp(line,"fdiv_bug")) {
 519                         if (!strncasecmp(value,"yes",3))
 520                                 PF[PF_FLOATING_POINT_PRECISION_ERRATA] = TRUE;
 521
 522                         continue;
 523                 }
 524                 if (!strcasecmp(line,"fpu")) {
 525                         if (!strncasecmp(value,"no",2))
 526                                 PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 527
 528                         continue;
 529                 }
 530                 if (    !strcasecmp(line,"flags")       ||
 531                         !strcasecmp(line,"features")) {
 532                         if (strstr(value,"cx8"))
 533                                 PF[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
 534                         if (strstr(value,"mmx"))
 535                                 PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 536                         if (strstr(value,"tsc"))
 537                                 PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
 538                         if (strstr(value,"3dnow"))
 539                                 PF[PF_3DNOW_INSTRUCTIONS_AVAILABLE] = TRUE;
 540                         /* This will also catch sse2, but we have sse itself
 541                          * if we have sse2, so no problem */
 542                         if (strstr(value,"sse"))
 543                                 PF[PF_XMMI_INSTRUCTIONS_AVAILABLE] = TRUE;
 544                         if (strstr(value,"sse2"))
 545                                 PF[PF_XMMI64_INSTRUCTIONS_AVAILABLE] = TRUE;
 546                         if (strstr(value,"pae"))
 547                                 PF[PF_PAE_ENABLED] = TRUE;
 548
 549                         continue;
 550                 }
 551         }
 552         fclose (f);
 553         }
 554 #elif defined (__NetBSD__)
 555         {
 556              int mib[2];
 557              int value[2];
 558              char model[256];
 559              char *cpuclass;
 560              FILE *f = fopen ("/var/run/dmesg.boot", "r");
 561
 562              /* first deduce as much as possible from the sysctls */
 563              mib[0] = CTL_MACHDEP;
 564 #ifdef CPU_FPU_PRESENT
 565              mib[1] = CPU_FPU_PRESENT;
 566              value[1] = sizeof(int);
 567              if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
 568                  if (value) PF[PF_FLOATING_POINT_EMULATED] = FALSE;
 569                  else       PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 570 #endif
 571 #ifdef CPU_SSE
 572              mib[1] = CPU_SSE;   /* this should imply MMX */
 573              value[1] = sizeof(int);
 574              if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
 575                  if (value) PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 576 #endif
 577 #ifdef CPU_SSE2
 578              mib[1] = CPU_SSE2;  /* this should imply MMX */
 579              value[1] = sizeof(int);
 580              if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
 581                  if (value) PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 582 #endif
 583              mib[0] = CTL_HW;
 584              mib[1] = HW_NCPU;
 585              value[1] = sizeof(int);
 586              if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
 587                  if (value[0] > cachedsi.dwNumberOfProcessors)
 588                     cachedsi.dwNumberOfProcessors = value[0];
 589              mib[1] = HW_MODEL;
 590              value[1] = 255;
 591              if (sysctl(mib, 2, model, value+1, NULL, 0) >= 0) {
 592                   model[value[1]] = '\0'; /* just in case */
 593                   cpuclass = strstr(model, "-class");
 594                   if (cpuclass != NULL) {
 595                        while(cpuclass > model && cpuclass[0] != '(') cpuclass--;
 596                        if (!strncmp(cpuclass+1, "386", 3)) {
 597                             cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 598                             cachedsi.wProcessorLevel= 3;
 599                        }
 600                        if (!strncmp(cpuclass+1, "486", 3)) {
 601                             cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 602                             cachedsi.wProcessorLevel= 4;
 603                        }
 604                        if (!strncmp(cpuclass+1, "586", 3)) {
 605                             cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 606                             cachedsi.wProcessorLevel= 5;
 607                        }
 608                        if (!strncmp(cpuclass+1, "686", 3)) {
 609                             cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 610                             cachedsi.wProcessorLevel= 6;
 611                             /* this should imply MMX */
 612                             PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 613                        }
 614                   }
 615              }
 616
 617              /* it may be worth reading from /var/run/dmesg.boot for
 618                 additional information such as CX8, MMX and TSC
 619                 (however this information should be considered less
 620                  reliable than that from the sysctl calls) */
 621              if (f != NULL)
 622              {
 623                  while (fgets(model, 255, f) != NULL) {
 624                         if (sscanf(model,"cpu%d: features %x<", value, value+1) == 2) {
 625                             /* we could scan the string but it is easier
 626                                to test the bits directly */
 627                             if (value[1] & 0x1)
 628                                 PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 629                             if (value[1] & 0x10)
 630                                 PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
 631                             if (value[1] & 0x100)
 632                                 PF[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
 633                             if (value[1] & 0x800000)
 634                                 PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 635
 636                             break;
 637                         }
 638                  }
 639                  fclose(f);
 640              }
 641
 642         }
 643 #elif defined(__FreeBSD__)
 644         {
 645         int ret, len, num;
 646
 647         get_cpuinfo( &cachedsi );
 648
 649         /* Check for OS support of SSE -- Is this used, and should it be sse1 or sse2? */
 650         /*len = sizeof(num);
 651           ret = sysctlbyname("hw.instruction_sse", &num, &len, NULL, 0);
 652           if (!ret)
 653           PF[PF_XMMI_INSTRUCTIONS_AVAILABLE] = num;*/
 654
 655         len = sizeof(num);
 656         ret = sysctlbyname("hw.ncpu", &num, &len, NULL, 0);
 657         if (!ret)
 658                 cachedsi.dwNumberOfProcessors = num;
 659         }
 660 #elif defined(__sun)
 661         {
 662             int num = sysconf( _SC_NPROCESSORS_ONLN );
 663
 664             if (num == -1) num = 1;
 665             get_cpuinfo( &cachedsi );
 666             cachedsi.dwNumberOfProcessors = num;
 667         }
 668 #elif defined (__APPLE__)
 669         {
 670         size_t valSize;
 671         unsigned long long longVal;
 672         int value;
 673         int cputype;
 674         char buffer[256];
 675
 676         valSize = sizeof(int);
 677         if (sysctlbyname ("hw.optional.floatingpoint", &value, &valSize, NULL, 0) == 0)
 678         {
 679             if (value)
 680                 PF[PF_FLOATING_POINT_EMULATED] = FALSE;
 681             else
 682                 PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 683         }
 684         valSize = sizeof(int);
 685         if (sysctlbyname ("hw.ncpu", &value, &valSize, NULL, 0) == 0)
 686         cachedsi.dwNumberOfProcessors = value;
 687
 688         valSize = sizeof(int);
 689         if (sysctlbyname ("hw.activecpu", &value, &valSize, NULL, 0) == 0)
 690             cachedsi.dwActiveProcessorMask = value;
 691
 692         valSize = sizeof(int);
 693         if (sysctlbyname ("hw.cputype", &cputype, &valSize, NULL, 0) == 0)
 694         {
 695             switch (cputype)
 696             {
 697             case CPU_TYPE_POWERPC:
 698                 cachedsi.u.s.wProcessorArchitecture = PROCESSOR_ARCHITECTURE_PPC;
 699                 valSize = sizeof(int);
 700                 if (sysctlbyname ("hw.cpusubtype", &value, &valSize, NULL, 0) == 0)
 701                 {
 702                         switch (value)
 703                         {
 704                             case CPU_SUBTYPE_POWERPC_601:
 705                             case CPU_SUBTYPE_POWERPC_602:
 706                                 cachedsi.dwProcessorType = PROCESSOR_PPC_601;
 707                                 cachedsi.wProcessorLevel = 1;
 708                                 break;
 709                             case CPU_SUBTYPE_POWERPC_603:
 710                                 cachedsi.dwProcessorType = PROCESSOR_PPC_603;
 711                                 cachedsi.wProcessorLevel = 3;
 712                                 break;
 713                             case CPU_SUBTYPE_POWERPC_603e:
 714                             case CPU_SUBTYPE_POWERPC_603ev:
 715                                 cachedsi.dwProcessorType = PROCESSOR_PPC_603;
 716                                 cachedsi.wProcessorLevel = 6;
 717                                 break;
 718                             case CPU_SUBTYPE_POWERPC_604:
 719                                 cachedsi.dwProcessorType = PROCESSOR_PPC_604;
 720                                 cachedsi.wProcessorLevel = 4;
 721                                 break;
 722                             case CPU_SUBTYPE_POWERPC_604e:
 723                                 cachedsi.dwProcessorType = PROCESSOR_PPC_604;
 724                                 cachedsi.wProcessorLevel = 9;
 725                                 break;
 726                             case CPU_SUBTYPE_POWERPC_620:
 727                                 cachedsi.dwProcessorType = PROCESSOR_PPC_620;
 728                                 cachedsi.wProcessorLevel = 20;
 729                                 break;
 730                             case CPU_SUBTYPE_POWERPC_750:
 731                             case CPU_SUBTYPE_POWERPC_7400:
 732                             case CPU_SUBTYPE_POWERPC_7450:
 733                                 /* G3/G4 derivate from 603 so ... */
 734                                 cachedsi.dwProcessorType = PROCESSOR_PPC_603;
 735                                 cachedsi.wProcessorLevel = 6;
 736                                 break;
 737                             case CPU_SUBTYPE_POWERPC_970:
 738                                 cachedsi.dwProcessorType = PROCESSOR_PPC_604;
 739                                 cachedsi.wProcessorLevel = 9;
 740                                 /* :o) PF[PF_ALTIVEC_INSTRUCTIONS_AVAILABLE] ;-) */
 741                                 break;
 742                             default: break;
 743                         }
 744                 }
 745                 break; /* CPU_TYPE_POWERPC */
 746             case CPU_TYPE_I386:
 747                 cachedsi.u.s.wProcessorArchitecture = PROCESSOR_ARCHITECTURE_INTEL;
 748                 valSize = sizeof(int);
 749                 if (sysctlbyname ("machdep.cpu.family", &value, &valSize, NULL, 0) == 0)
 750                 {
 751                     cachedsi.wProcessorLevel = value;
 752                     switch (value)
 753                     {
 754                     case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386; break;
 755                     case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486; break;
 756                     default: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM; break;
 757                     }
 758                 }
 759                 valSize = sizeof(int);
 760                 if (sysctlbyname ("machdep.cpu.model", &value, &valSize, NULL, 0) == 0)
 761                     cachedsi.wProcessorRevision = (value << 8);
 762                 valSize = sizeof(int);
 763                 if (sysctlbyname ("machdep.cpu.stepping", &value, &valSize, NULL, 0) == 0)
 764                     cachedsi.wProcessorRevision |= value;
 765                 valSize = sizeof(buffer);
 766                 if (sysctlbyname ("machdep.cpu.features", buffer, &valSize, NULL, 0) == 0)
 767                 {
 768                     cachedsi.wProcessorRevision |= value;
 769                     if (strstr(buffer,"CX8"))  PF[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
 770                     if (strstr(buffer,"MMX"))   PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 771                     if (strstr(buffer,"TSC"))   PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
 772                     if (strstr(buffer,"3DNOW")) PF[PF_3DNOW_INSTRUCTIONS_AVAILABLE] = TRUE;
 773                     if (strstr(buffer,"SSE"))   PF[PF_XMMI_INSTRUCTIONS_AVAILABLE] = TRUE;
 774                     if (strstr(buffer,"SSE2"))  PF[PF_XMMI64_INSTRUCTIONS_AVAILABLE] = TRUE;
 775                     if (strstr(buffer,"PAE"))   PF[PF_PAE_ENABLED] = TRUE;
 776                 }
 777                 break; /* CPU_TYPE_I386 */
 778             default: break;
 779             } /* switch (cputype) */
 780         }
 781         valSize = sizeof(longVal);
 782         if (!sysctlbyname("hw.cpufrequency", &longVal, &valSize, NULL, 0))
 783             cpuHz = longVal;
 784         }
 785 #else
 786         FIXME("not yet supported on this system\n");
 787 #endif
 788         memcpy(si,&cachedsi,sizeof(*si));
 789
 790         TRACE("<- CPU arch %d, res'd %d, pagesize %d, minappaddr %p, maxappaddr %p,"
 791               " act.cpumask %08x, numcpus %d, CPU type %d, allocgran. %d, CPU level %d, CPU rev %d\n",
 792               si->u.s.wProcessorArchitecture, si->u.s.wReserved, si->dwPageSize,
 793               si->lpMinimumApplicationAddress, si->lpMaximumApplicationAddress,
 794               si->dwActiveProcessorMask, si->dwNumberOfProcessors, si->dwProcessorType,
 795               si->dwAllocationGranularity, si->wProcessorLevel, si->wProcessorRevision);
 796
 797         create_system_registry_keys( &cachedsi );
 798         create_env_registry_keys( &cachedsi );
 799 }
 800
 801
 802 /***********************************************************************
 803  *                      GetNativeSystemInfo             [KERNEL32.@]
 804  */
 805 VOID WINAPI GetNativeSystemInfo(
 806     LPSYSTEM_INFO si    /* [out] Destination for system information, may not be NULL */)
 807 {
 808     FIXME("(%p) using GetSystemInfo()\n", si);
 809     GetSystemInfo(si);
 810 }
 811
 812 /***********************************************************************
 813  *                      IsProcessorFeaturePresent       [KERNEL32.@]
 814  *
 815  * Determine if the cpu supports a given feature.
 816  *
 817  * RETURNS
 818  *  TRUE, If the processor supports feature,
 819  *  FALSE otherwise.
 820  */
 821 BOOL WINAPI IsProcessorFeaturePresent (
 822         DWORD feature   /* [in] Feature number, (PF_ constants from "winnt.h") */)
 823 {
 824   SYSTEM_INFO si;
 825   GetSystemInfo (&si); /* To ensure the information is loaded and cached */
 826
 827   if (feature < 64)
 828     return PF[feature];
 829   else
 830     return FALSE;
 831 }