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, (strlenW(SysidW)+1) * sizeof(WCHAR) );
 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 cpuMHz = cpuHz / 1000000;
 155
 156                 /*TODO: report 64bit processors properly*/
 157                 RtlInitUnicodeString( &valueW, IdentifierW );
 158                 sprintf( id, "x86 Family %d Model %d Stepping %d",
 159                          info->wProcessorLevel, HIBYTE(info->wProcessorRevision), LOBYTE(info->wProcessorRevision) );
 160
 161                 RtlMultiByteToUnicodeN( idW, sizeof(idW), NULL, id, strlen(id)+1 );
 162                 NtSetValueKey( hkey, &valueW, 0, REG_SZ, idW, (strlenW(idW)+1)*sizeof(WCHAR) );
 163
 164                 /*TODO; report amd's properly*/
 165                 RtlInitUnicodeString( &valueW, VendorIdentifierW );
 166                 NtSetValueKey( hkey, &valueW, 0, REG_SZ, VenidIntelW, (strlenW(VenidIntelW)+1) * sizeof(WCHAR) );
 167
 168                 RtlInitUnicodeString( &valueW, mhzKeyW );
 169                 NtSetValueKey( hkey, &valueW, 0, REG_DWORD, &cpuMHz, sizeof(DWORD) );
 170                 NtClose( hkey );
 171             }
 172             RtlFreeUnicodeString( &nameW );
 173         }
 174         NtClose( cpu_key );
 175     }
 176     NtClose( system_key );
 177 }
 178
 179 static void create_env_registry_keys( const SYSTEM_INFO *info )
 180 {
 181     static const WCHAR EnvironW[]  = {'M','a','c','h','i','n','e','\\',
 182                                       'S','y','s','t','e','m','\\',
 183                                       'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
 184                                       'C','o','n','t','r','o','l','\\',
 185                                       'S','e','s','s','i','o','n',' ','M','a','n','a','g','e','r','\\',
 186                                       'E','n','v','i','r','o','n','m','e','n','t',0};
 187     static const WCHAR NumProcW[]  = {'N','U','M','B','E','R','_','O','F','_','P','R','O','C','E','S','S','O','R','S',0};
 188     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};
 189     static const WCHAR x86W[]      = {'x','8','6',0};
 190     static const WCHAR ProcIdW[]   = {'P','R','O','C','E','S','S','O','R','_','I','D','E','N','T','I','F','I','E','R',0};
 191     static const WCHAR ProcLvlW[]  = {'P','R','O','C','E','S','S','O','R','_','L','E','V','E','L',0};
 192     static const WCHAR ProcRevW[]  = {'P','R','O','C','E','S','S','O','R','_','R','E','V','I','S','I','O','N',0};
 193
 194     HANDLE env_key;
 195     OBJECT_ATTRIBUTES attr;
 196     UNICODE_STRING nameW, valueW;
 197
 198     char nProc[10],id[60],procLevel[10],rev[10];
 199     WCHAR nProcW[10],idW[60],procLevelW[10],revW[10];
 200
 201     /* Create some keys under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment.
 202      * All these environment variables are processor related and will be read during process initialization and hence
 203      * show up in the environment of that process.
 204      */
 205
 206     attr.Length = sizeof(attr);
 207     attr.RootDirectory = 0;
 208     attr.ObjectName = &nameW;
 209     attr.Attributes = 0;
 210     attr.SecurityDescriptor = NULL;
 211     attr.SecurityQualityOfService = NULL;
 212
 213     RtlInitUnicodeString( &nameW, EnvironW );
 214     if (NtCreateKey( &env_key, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL )) return;
 215
 216     sprintf( nProc, "%d", info->dwNumberOfProcessors );
 217     RtlMultiByteToUnicodeN( nProcW, sizeof(nProcW), NULL, nProc, strlen(nProc)+1 );
 218     RtlInitUnicodeString( &valueW, NumProcW );
 219     NtSetValueKey( env_key, &valueW, 0, REG_SZ, nProcW, (strlenW(nProcW)+1)*sizeof(WCHAR) );
 220
 221     /* TODO: currently hardcoded x86, add different processors */
 222     RtlInitUnicodeString( &valueW, ProcArchW );
 223     NtSetValueKey( env_key, &valueW, 0, REG_SZ, x86W, (strlenW(x86W)+1) * sizeof(WCHAR) );
 224
 225     /* TODO: currently hardcoded Intel, add different processors */
 226     sprintf( id, "x86 Family %d Model %d Stepping %d, GenuineIntel",
 227         info->wProcessorLevel, HIBYTE(info->wProcessorRevision), LOBYTE(info->wProcessorRevision) );
 228     RtlMultiByteToUnicodeN( idW, sizeof(idW), NULL, id, strlen(id)+1 );
 229     RtlInitUnicodeString( &valueW, ProcIdW );
 230     NtSetValueKey( env_key, &valueW, 0, REG_SZ, idW, (strlenW(idW)+1)*sizeof(WCHAR) );
 231
 232     sprintf( procLevel, "%d", info->wProcessorLevel );
 233     RtlMultiByteToUnicodeN( procLevelW, sizeof(procLevelW), NULL, procLevel, strlen(procLevel)+1 );
 234     RtlInitUnicodeString( &valueW, ProcLvlW );
 235     NtSetValueKey( env_key, &valueW, 0, REG_SZ, procLevelW, (strlenW(procLevelW)+1)*sizeof(WCHAR) );
 236
 237     /* Properly report model/stepping */
 238     sprintf( rev, "%04x", info->wProcessorRevision);
 239     RtlMultiByteToUnicodeN( revW, sizeof(revW), NULL, rev, strlen(rev)+1 );
 240     RtlInitUnicodeString( &valueW, ProcRevW );
 241     NtSetValueKey( env_key, &valueW, 0, REG_SZ, revW, (strlenW(revW)+1)*sizeof(WCHAR) );
 242
 243     NtClose( env_key );
 244 }
 245
 246 static inline void get_cpuinfo( SYSTEM_INFO *info )
 247 {
 248     unsigned int regs[4], regs2[4];
 249
 250     if (!have_cpuid()) return;
 251
 252     do_cpuid(0x00000000, regs);  /* get standard cpuid level and vendor name */
 253     if (regs[0]>=0x00000001)   /* Check for supported cpuid version */
 254     {
 255         do_cpuid(0x00000001, regs2); /* get cpu features */
 256         switch ((regs2[0] >> 8) & 0xf)  /* cpu family */
 257         {
 258         case 3:
 259             info->dwProcessorType = PROCESSOR_INTEL_386;
 260             info->wProcessorLevel = 3;
 261             break;
 262         case 4:
 263             info->dwProcessorType = PROCESSOR_INTEL_486;
 264             info->wProcessorLevel = 4;
 265             break;
 266         case 5:
 267             info->dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 268             info->wProcessorLevel = 5;
 269             break;
 270         case 6:
 271         case 15: /* PPro/2/3/4 has same info as P1 */
 272             info->dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 273             info->wProcessorLevel = 6;
 274             break;
 275         default:
 276             FIXME("unknown cpu family %d, please report! (-> setting to 386)\n",
 277                   (regs2[0] >> 8)&0xf);
 278             break;
 279         }
 280         PF[PF_FLOATING_POINT_EMULATED]     = !(regs2[3] & 1);
 281         PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = (regs2[3] & (1 << 4 )) >> 4;
 282         PF[PF_COMPARE_EXCHANGE_DOUBLE]     = (regs2[3] & (1 << 8 )) >> 8;
 283         PF[PF_MMX_INSTRUCTIONS_AVAILABLE]  = (regs2[3] & (1 << 23)) >> 23;
 284
 285         if (regs[1] == AUTH &&
 286             regs[3] == ENTI &&
 287             regs[2] == CAMD) {
 288             do_cpuid(0x80000000, regs);  /* get vendor cpuid level */
 289             if (regs[0]>=0x80000001) {
 290                 do_cpuid(0x80000001, regs2);  /* get vendor features */
 291                 PF[PF_3DNOW_INSTRUCTIONS_AVAILABLE] = (regs2[3] & (1 << 31 )) >> 31;
 292             }
 293         }
 294     }
 295 }
 296
 297 /****************************************************************************
 298  *              QueryPerformanceCounter (KERNEL32.@)
 299  *
 300  * Get the current value of the performance counter.
 301  *
 302  * PARAMS
 303  *  counter [O] Destination for the current counter reading
 304  *
 305  * RETURNS
 306  *  Success: TRUE. counter contains the current reading
 307  *  Failure: FALSE.
 308  *
 309  * SEE ALSO
 310  *  See QueryPerformanceFrequency.
 311  */
 312 BOOL WINAPI QueryPerformanceCounter(PLARGE_INTEGER counter)
 313 {
 314     NtQueryPerformanceCounter( counter, NULL );
 315     return TRUE;
 316 }
 317
 318
 319 /****************************************************************************
 320  *              QueryPerformanceFrequency (KERNEL32.@)
 321  *
 322  * Get the resolution of the performance counter.
 323  *
 324  * PARAMS
 325  *  frequency [O] Destination for the counter resolution
 326  *
 327  * RETURNS
 328  *  Success. TRUE. Frequency contains the resolution of the counter.
 329  *  Failure: FALSE.
 330  *
 331  * SEE ALSO
 332  *  See QueryPerformanceCounter.
 333  */
 334 BOOL WINAPI QueryPerformanceFrequency(PLARGE_INTEGER frequency)
 335 {
 336     LARGE_INTEGER counter;
 337     NtQueryPerformanceCounter( &counter, frequency );
 338     return TRUE;
 339 }
 340
 341
 342 /***********************************************************************
 343  *                      GetSystemInfo                   [KERNEL32.@]
 344  *
 345  * Get information about the system.
 346  *
 347  * RETURNS
 348  *  Nothing.
 349  *
 350  * NOTES
 351  * On the first call it creates cached values, so it doesn't have to determine
 352  * them repeatedly. On Linux, the "/proc/cpuinfo" special file is used.
 353  *
 354  * It creates a registry subhierarchy, looking like:
 355  * "\HARDWARE\DESCRIPTION\System\CentralProcessor\<processornumber>\Identifier (CPU x86)".
 356  * Note that there is a hierarchy for every processor installed, so this
 357  * supports multiprocessor systems. This is done like Win95 does it, I think.
 358  *
 359  * It creates some registry entries in the environment part:
 360  * "\HKLM\System\CurrentControlSet\Control\Session Manager\Environment". These are
 361  * always present. When deleted, Windows will add them again.
 362  *
 363  * It also creates a cached flag array for IsProcessorFeaturePresent().
 364  */
 365 VOID WINAPI GetSystemInfo(
 366         LPSYSTEM_INFO si        /* [out] Destination for system information, may not be NULL */)
 367 {
 368         static int cache = 0;
 369         static SYSTEM_INFO cachedsi;
 370         SYSTEM_BASIC_INFORMATION sbi;
 371
 372         TRACE("si=0x%p\n", si);
 373         if (cache) {
 374                 *si = cachedsi;
 375                 return;
 376         }
 377         memset(PF,0,sizeof(PF));
 378
 379         NtQuerySystemInformation( SystemBasicInformation, &sbi, sizeof(sbi), NULL );
 380         cachedsi.dwPageSize                  = sbi.uPageSize;
 381         cachedsi.lpMinimumApplicationAddress = sbi.pLowestUserAddress;
 382         cachedsi.lpMaximumApplicationAddress = sbi.pMmHighestUserAddress;
 383         cachedsi.dwNumberOfProcessors        = sbi.uKeActiveProcessors;
 384         cachedsi.dwAllocationGranularity     = sbi.uAllocationGranularity;
 385
 386         /* choose sensible defaults ...
 387          * FIXME: perhaps overridable with precompiler flags?
 388          */
 389         cachedsi.u.s.wProcessorArchitecture     = PROCESSOR_ARCHITECTURE_INTEL;
 390         cachedsi.dwActiveProcessorMask          = 0;
 391         cachedsi.dwProcessorType                = PROCESSOR_INTEL_PENTIUM;
 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         *si = cachedsi;
 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
 459                                 default:
 460                                         cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 461                                         cachedsi.wProcessorLevel = atoi(value);
 462                                         break;
 463                                 }
 464                         }
 465                         continue;
 466                 }
 467                 /* old 2.0 method */
 468                 if (!strcasecmp(line, "cpu")) {
 469                         if (    isdigit (value[0]) && value[1] == '8' &&
 470                                 value[2] == '6' && value[3] == 0
 471                         ) {
 472                                 switch (value[0] - '0') {
 473                                 case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 474                                         cachedsi.wProcessorLevel= 3;
 475                                         break;
 476                                 case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 477                                         cachedsi.wProcessorLevel= 4;
 478                                         break;
 479                                 case 5: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 480                                         cachedsi.wProcessorLevel= 5;
 481                                         break;
 482                                 case 6: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 483                                         cachedsi.wProcessorLevel= 6;
 484                                         break;
 485                                 default:
 486                                         FIXME("unknown Linux 2.0 cpu family '%s', please report ! (-> setting to 386)\n", value);
 487                                         break;
 488                                 }
 489                         }
 490                         continue;
 491                 }
 492                 if (!strcasecmp(line,"stepping")) {
 493                         /* Second part of wProcessorRevision */
 494                         int     x;
 495
 496                         if (sscanf(value,"%d",&x))
 497                                 cachedsi.wProcessorRevision = cachedsi.wProcessorRevision | x;
 498
 499                         continue;
 500                 }
 501                 if (!strcasecmp(line, "cpu MHz")) {
 502                         double cmz;
 503                         if (sscanf( value, "%lf", &cmz ) == 1) {
 504                                 /* SYSTEMINFO doesn't have a slot for cpu speed, so store in a global */
 505                                 cpuHz = cmz * 1000 * 1000;
 506                         }
 507                         continue;
 508                 }
 509                 if (!strcasecmp(line,"fdiv_bug")) {
 510                         if (!strncasecmp(value,"yes",3))
 511                                 PF[PF_FLOATING_POINT_PRECISION_ERRATA] = TRUE;
 512
 513                         continue;
 514                 }
 515                 if (!strcasecmp(line,"fpu")) {
 516                         if (!strncasecmp(value,"no",2))
 517                                 PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 518
 519                         continue;
 520                 }
 521                 if (    !strcasecmp(line,"flags")       ||
 522                         !strcasecmp(line,"features")) {
 523                         if (strstr(value,"cx8"))
 524                                 PF[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
 525                         if (strstr(value,"mmx"))
 526                                 PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 527                         if (strstr(value,"tsc"))
 528                                 PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
 529                         if (strstr(value,"3dnow"))
 530                                 PF[PF_3DNOW_INSTRUCTIONS_AVAILABLE] = TRUE;
 531                         /* This will also catch sse2, but we have sse itself
 532                          * if we have sse2, so no problem */
 533                         if (strstr(value,"sse"))
 534                                 PF[PF_XMMI_INSTRUCTIONS_AVAILABLE] = TRUE;
 535                         if (strstr(value,"sse2"))
 536                                 PF[PF_XMMI64_INSTRUCTIONS_AVAILABLE] = TRUE;
 537                         if (strstr(value,"pae"))
 538                                 PF[PF_PAE_ENABLED] = TRUE;
 539
 540                         continue;
 541                 }
 542         }
 543         fclose (f);
 544         }
 545 #elif defined (__NetBSD__)
 546         {
 547              int mib[2];
 548              int value[2];
 549              char model[256];
 550              char *cpuclass;
 551              FILE *f = fopen ("/var/run/dmesg.boot", "r");
 552
 553              /* first deduce as much as possible from the sysctls */
 554              mib[0] = CTL_MACHDEP;
 555 #ifdef CPU_FPU_PRESENT
 556              mib[1] = CPU_FPU_PRESENT;
 557              value[1] = sizeof(int);
 558              if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
 559                  if (value) PF[PF_FLOATING_POINT_EMULATED] = FALSE;
 560                  else       PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 561 #endif
 562 #ifdef CPU_SSE
 563              mib[1] = CPU_SSE;   /* this should imply MMX */
 564              value[1] = sizeof(int);
 565              if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
 566                  if (value) PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 567 #endif
 568 #ifdef CPU_SSE2
 569              mib[1] = CPU_SSE2;  /* this should imply MMX */
 570              value[1] = sizeof(int);
 571              if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
 572                  if (value) PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 573 #endif
 574              mib[0] = CTL_HW;
 575              mib[1] = HW_NCPU;
 576              value[1] = sizeof(int);
 577              if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
 578                  if (value[0] > cachedsi.dwNumberOfProcessors)
 579                     cachedsi.dwNumberOfProcessors = value[0];
 580              mib[1] = HW_MODEL;
 581              value[1] = 255;
 582              if (sysctl(mib, 2, model, value+1, NULL, 0) >= 0) {
 583                   model[value[1]] = '\0'; /* just in case */
 584                   cpuclass = strstr(model, "-class");
 585                   if (cpuclass != NULL) {
 586                        while(cpuclass > model && cpuclass[0] != '(') cpuclass--;
 587                        if (!strncmp(cpuclass+1, "386", 3)) {
 588                             cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
 589                             cachedsi.wProcessorLevel= 3;
 590                        }
 591                        if (!strncmp(cpuclass+1, "486", 3)) {
 592                             cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
 593                             cachedsi.wProcessorLevel= 4;
 594                        }
 595                        if (!strncmp(cpuclass+1, "586", 3)) {
 596                             cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 597                             cachedsi.wProcessorLevel= 5;
 598                        }
 599                        if (!strncmp(cpuclass+1, "686", 3)) {
 600                             cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
 601                             cachedsi.wProcessorLevel= 6;
 602                             /* this should imply MMX */
 603                             PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 604                        }
 605                   }
 606              }
 607
 608              /* it may be worth reading from /var/run/dmesg.boot for
 609                 additional information such as CX8, MMX and TSC
 610                 (however this information should be considered less
 611                  reliable than that from the sysctl calls) */
 612              if (f != NULL)
 613              {
 614                  while (fgets(model, 255, f) != NULL) {
 615                         if (sscanf(model,"cpu%d: features %x<", value, value+1) == 2) {
 616                             /* we could scan the string but it is easier
 617                                to test the bits directly */
 618                             if (value[1] & 0x1)
 619                                 PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 620                             if (value[1] & 0x10)
 621                                 PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
 622                             if (value[1] & 0x100)
 623                                 PF[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
 624                             if (value[1] & 0x800000)
 625                                 PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 626
 627                             break;
 628                         }
 629                  }
 630                  fclose(f);
 631              }
 632
 633         }
 634 #elif defined(__FreeBSD__)
 635         {
 636         int ret, num;
 637         unsigned len;
 638
 639         get_cpuinfo( &cachedsi );
 640
 641         /* Check for OS support of SSE -- Is this used, and should it be sse1 or sse2? */
 642         /*len = sizeof(num);
 643           ret = sysctlbyname("hw.instruction_sse", &num, &len, NULL, 0);
 644           if (!ret)
 645           PF[PF_XMMI_INSTRUCTIONS_AVAILABLE] = num;*/
 646
 647         len = sizeof(num);
 648         ret = sysctlbyname("hw.ncpu", &num, &len, NULL, 0);
 649         if (!ret)
 650                 cachedsi.dwNumberOfProcessors = num;
 651         }
 652 #elif defined(__sun)
 653         {
 654             int num = sysconf( _SC_NPROCESSORS_ONLN );
 655
 656             if (num == -1) num = 1;
 657             get_cpuinfo( &cachedsi );
 658             cachedsi.dwNumberOfProcessors = num;
 659         }
 660 #elif defined (__APPLE__)
 661         {
 662         size_t valSize;
 663         unsigned long long longVal;
 664         int value;
 665         int cputype;
 666         char buffer[256];
 667
 668         valSize = sizeof(int);
 669         if (sysctlbyname ("hw.optional.floatingpoint", &value, &valSize, NULL, 0) == 0)
 670         {
 671             if (value)
 672                 PF[PF_FLOATING_POINT_EMULATED] = FALSE;
 673             else
 674                 PF[PF_FLOATING_POINT_EMULATED] = TRUE;
 675         }
 676         valSize = sizeof(int);
 677         if (sysctlbyname ("hw.ncpu", &value, &valSize, NULL, 0) == 0)
 678             cachedsi.dwNumberOfProcessors = value;
 679
 680         valSize = sizeof(int);
 681         if (sysctlbyname ("hw.activecpu", &value, &valSize, NULL, 0) == 0)
 682             cachedsi.dwActiveProcessorMask = (1 << value) - 1;
 683
 684         valSize = sizeof(int);
 685         if (sysctlbyname ("hw.cputype", &cputype, &valSize, NULL, 0) == 0)
 686         {
 687             switch (cputype)
 688             {
 689             case CPU_TYPE_POWERPC:
 690                 cachedsi.u.s.wProcessorArchitecture = PROCESSOR_ARCHITECTURE_PPC;
 691                 valSize = sizeof(int);
 692                 if (sysctlbyname ("hw.cpusubtype", &value, &valSize, NULL, 0) == 0)
 693                 {
 694                         switch (value)
 695                         {
 696                             case CPU_SUBTYPE_POWERPC_601:
 697                             case CPU_SUBTYPE_POWERPC_602:
 698                                 cachedsi.dwProcessorType = PROCESSOR_PPC_601;
 699                                 cachedsi.wProcessorLevel = 1;
 700                                 break;
 701                             case CPU_SUBTYPE_POWERPC_603:
 702                                 cachedsi.dwProcessorType = PROCESSOR_PPC_603;
 703                                 cachedsi.wProcessorLevel = 3;
 704                                 break;
 705                             case CPU_SUBTYPE_POWERPC_603e:
 706                             case CPU_SUBTYPE_POWERPC_603ev:
 707                                 cachedsi.dwProcessorType = PROCESSOR_PPC_603;
 708                                 cachedsi.wProcessorLevel = 6;
 709                                 break;
 710                             case CPU_SUBTYPE_POWERPC_604:
 711                                 cachedsi.dwProcessorType = PROCESSOR_PPC_604;
 712                                 cachedsi.wProcessorLevel = 4;
 713                                 break;
 714                             case CPU_SUBTYPE_POWERPC_604e:
 715                                 cachedsi.dwProcessorType = PROCESSOR_PPC_604;
 716                                 cachedsi.wProcessorLevel = 9;
 717                                 break;
 718                             case CPU_SUBTYPE_POWERPC_620:
 719                                 cachedsi.dwProcessorType = PROCESSOR_PPC_620;
 720                                 cachedsi.wProcessorLevel = 20;
 721                                 break;
 722                             case CPU_SUBTYPE_POWERPC_750:
 723                             case CPU_SUBTYPE_POWERPC_7400:
 724                             case CPU_SUBTYPE_POWERPC_7450:
 725                                 /* G3/G4 derive from 603 so ... */
 726                                 cachedsi.dwProcessorType = PROCESSOR_PPC_603;
 727                                 cachedsi.wProcessorLevel = 6;
 728                                 break;
 729                             case CPU_SUBTYPE_POWERPC_970:
 730                                 cachedsi.dwProcessorType = PROCESSOR_PPC_604;
 731                                 cachedsi.wProcessorLevel = 9;
 732                                 /* :o) PF[PF_ALTIVEC_INSTRUCTIONS_AVAILABLE] ;-) */
 733                                 break;
 734                             default: break;
 735                         }
 736                 }
 737                 break; /* CPU_TYPE_POWERPC */
 738             case CPU_TYPE_I386:
 739                 cachedsi.u.s.wProcessorArchitecture = PROCESSOR_ARCHITECTURE_INTEL;
 740                 valSize = sizeof(int);
 741                 if (sysctlbyname ("machdep.cpu.family", &value, &valSize, NULL, 0) == 0)
 742                 {
 743                     cachedsi.wProcessorLevel = value;
 744                     switch (value)
 745                     {
 746                     case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386; break;
 747                     case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486; break;
 748                     default: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM; break;
 749                     }
 750                 }
 751                 valSize = sizeof(int);
 752                 if (sysctlbyname ("machdep.cpu.model", &value, &valSize, NULL, 0) == 0)
 753                     cachedsi.wProcessorRevision = (value << 8);
 754                 valSize = sizeof(int);
 755                 if (sysctlbyname ("machdep.cpu.stepping", &value, &valSize, NULL, 0) == 0)
 756                     cachedsi.wProcessorRevision |= value;
 757                 valSize = sizeof(buffer);
 758                 if (sysctlbyname ("machdep.cpu.features", buffer, &valSize, NULL, 0) == 0)
 759                 {
 760                     cachedsi.wProcessorRevision |= value;
 761                     if (strstr(buffer,"CX8"))  PF[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
 762                     if (strstr(buffer,"MMX"))   PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
 763                     if (strstr(buffer,"TSC"))   PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
 764                     if (strstr(buffer,"3DNOW")) PF[PF_3DNOW_INSTRUCTIONS_AVAILABLE] = TRUE;
 765                     if (strstr(buffer,"SSE"))   PF[PF_XMMI_INSTRUCTIONS_AVAILABLE] = TRUE;
 766                     if (strstr(buffer,"SSE2"))  PF[PF_XMMI64_INSTRUCTIONS_AVAILABLE] = TRUE;
 767                     if (strstr(buffer,"PAE"))   PF[PF_PAE_ENABLED] = TRUE;
 768                 }
 769                 break; /* CPU_TYPE_I386 */
 770             default: break;
 771             } /* switch (cputype) */
 772         }
 773         valSize = sizeof(longVal);
 774         if (!sysctlbyname("hw.cpufrequency", &longVal, &valSize, NULL, 0))
 775             cpuHz = longVal;
 776         }
 777 #else
 778         FIXME("not yet supported on this system\n");
 779 #endif
 780         if (!cachedsi.dwActiveProcessorMask)
 781             cachedsi.dwActiveProcessorMask = (1 << cachedsi.dwNumberOfProcessors) - 1;
 782
 783         *si = cachedsi;
 784
 785         TRACE("<- CPU arch %d, res'd %d, pagesize %d, minappaddr %p, maxappaddr %p,"
 786               " act.cpumask %08x, numcpus %d, CPU type %d, allocgran. %d, CPU level %d, CPU rev %d\n",
 787               si->u.s.wProcessorArchitecture, si->u.s.wReserved, si->dwPageSize,
 788               si->lpMinimumApplicationAddress, si->lpMaximumApplicationAddress,
 789               si->dwActiveProcessorMask, si->dwNumberOfProcessors, si->dwProcessorType,
 790               si->dwAllocationGranularity, si->wProcessorLevel, si->wProcessorRevision);
 791
 792         create_system_registry_keys( &cachedsi );
 793         create_env_registry_keys( &cachedsi );
 794 }
 795
 796
 797 /***********************************************************************
 798  *                      GetNativeSystemInfo             [KERNEL32.@]
 799  */
 800 VOID WINAPI GetNativeSystemInfo(
 801     LPSYSTEM_INFO si    /* [out] Destination for system information, may not be NULL */)
 802 {
 803     static BOOL reported = FALSE;
 804     if (!reported) {
 805         FIXME("(%p) using GetSystemInfo()\n", si);
 806         reported = TRUE;
 807     } else
 808         TRACE("(%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 }