?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
qmgr: Implement Skip and Reset for IEnumBackgroundCopyFiles.
[wine.git] / dlls / kernel32 / cpu.c
blob1f3d94588d70efdaa491654fac643a4f4a5c22df
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 performace 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
371 TRACE("si=0x%p\n", si);
372 if (cache) {
373 memcpy(si,&cachedsi,sizeof(*si));
374 return;
375 }
376 memset(PF,0,sizeof(PF));
377
378 /* choose sensible defaults ...
379 * FIXME: perhaps overridable with precompiler flags?
380 */
381 cachedsi.u.s.wProcessorArchitecture = PROCESSOR_ARCHITECTURE_INTEL;
382 cachedsi.dwPageSize = getpagesize();
383
384 /* FIXME: the two entries below should be computed somehow... */
385 cachedsi.lpMinimumApplicationAddress = (void *)0x00010000;
386 cachedsi.lpMaximumApplicationAddress = (void *)0x7FFEFFFF;
387 cachedsi.dwActiveProcessorMask = 0;
388 cachedsi.dwNumberOfProcessors = 1;
389 cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
390 cachedsi.dwAllocationGranularity = 0x10000;
391 cachedsi.wProcessorLevel = 5; /* 586 */
392 cachedsi.wProcessorRevision = 0;
393
394 cache = 1; /* even if there is no more info, we now have a cache entry */
395 memcpy(si,&cachedsi,sizeof(*si));
396
397 /* Hmm, reasonable processor feature defaults? */
398
399 #ifdef linux
400 {
401 char line[200];
402 FILE *f = fopen ("/proc/cpuinfo", "r");
403
404 if (!f)
405 return;
406 while (fgets(line,200,f)!=NULL) {
407 char *s,*value;
408
409 /* NOTE: the ':' is the only character we can rely on */
410 if (!(value = strchr(line,':')))
411 continue;
412
413 /* terminate the valuename */
414 s = value - 1;
415 while ((s >= line) && ((*s == ' ') || (*s == '\t'))) s--;
416 *(s + 1) = '\0';
417
418 /* and strip leading spaces from value */
419 value += 1;
420 while (*value==' ') value++;
421 if ((s=strchr(value,'\n')))
422 *s='\0';
423
424 if (!strcasecmp(line,"processor")) {
425 /* processor number counts up... */
426 unsigned int x;
427
428 if (sscanf(value,"%d",&x))
429 if (x+1>cachedsi.dwNumberOfProcessors)
430 cachedsi.dwNumberOfProcessors=x+1;
431
432 continue;
433 }
434 if (!strcasecmp(line,"model")) {
435 /* First part of wProcessorRevision */
436 int x;
437
438 if (sscanf(value,"%d",&x))
439 cachedsi.wProcessorRevision = cachedsi.wProcessorRevision | (x << 8);
440
441 continue;
442 }
443
444 /* 2.1 method */
445 if (!strcasecmp(line, "cpu family")) {
446 if (isdigit (value[0])) {
447 switch (value[0] - '0') {
448 case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
449 cachedsi.wProcessorLevel= 3;
450 break;
451 case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
452 cachedsi.wProcessorLevel= 4;
453 break;
454 case 5: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
455 cachedsi.wProcessorLevel= 5;
456 break;
457 case 6: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
458 cachedsi.wProcessorLevel= 6;
459 break;
460 case 1: /* two-figure levels */
461 if (value[1] == '5')
462 {
463 cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
464 cachedsi.wProcessorLevel= 6;
465 break;
466 }
467 /* fall through */
468 default:
469 FIXME("unknown cpu family '%s', please report ! (-> setting to 386)\n", value);
470 break;
471 }
472 }
473 continue;
474 }
475 /* old 2.0 method */
476 if (!strcasecmp(line, "cpu")) {
477 if ( isdigit (value[0]) && value[1] == '8' &&
478 value[2] == '6' && value[3] == 0
479 ) {
480 switch (value[0] - '0') {
481 case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
482 cachedsi.wProcessorLevel= 3;
483 break;
484 case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
485 cachedsi.wProcessorLevel= 4;
486 break;
487 case 5: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
488 cachedsi.wProcessorLevel= 5;
489 break;
490 case 6: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
491 cachedsi.wProcessorLevel= 6;
492 break;
493 default:
494 FIXME("unknown Linux 2.0 cpu family '%s', please report ! (-> setting to 386)\n", value);
495 break;
496 }
497 }
498 continue;
499 }
500 if (!strcasecmp(line,"stepping")) {
501 /* Second part of wProcessorRevision */
502 int x;
503
504 if (sscanf(value,"%d",&x))
505 cachedsi.wProcessorRevision = cachedsi.wProcessorRevision | x;
506
507 continue;
508 }
509 if (!strcasecmp(line, "cpu MHz")) {
510 double cmz;
511 if (sscanf( value, "%lf", &cmz ) == 1) {
512 /* SYSTEMINFO doesn't have a slot for cpu speed, so store in a global */
513 cpuHz = cmz * 1000 * 1000;
514 }
515 continue;
516 }
517 if (!strcasecmp(line,"fdiv_bug")) {
518 if (!strncasecmp(value,"yes",3))
519 PF[PF_FLOATING_POINT_PRECISION_ERRATA] = TRUE;
520
521 continue;
522 }
523 if (!strcasecmp(line,"fpu")) {
524 if (!strncasecmp(value,"no",2))
525 PF[PF_FLOATING_POINT_EMULATED] = TRUE;
526
527 continue;
528 }
529 if ( !strcasecmp(line,"flags") ||
530 !strcasecmp(line,"features")) {
531 if (strstr(value,"cx8"))
532 PF[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
533 if (strstr(value,"mmx"))
534 PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
535 if (strstr(value,"tsc"))
536 PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
537 if (strstr(value,"3dnow"))
538 PF[PF_3DNOW_INSTRUCTIONS_AVAILABLE] = TRUE;
539 /* This will also catch sse2, but we have sse itself
540 * if we have sse2, so no problem */
541 if (strstr(value,"sse"))
542 PF[PF_XMMI_INSTRUCTIONS_AVAILABLE] = TRUE;
543 if (strstr(value,"sse2"))
544 PF[PF_XMMI64_INSTRUCTIONS_AVAILABLE] = TRUE;
545 if (strstr(value,"pae"))
546 PF[PF_PAE_ENABLED] = TRUE;
547
548 continue;
549 }
550 }
551 fclose (f);
552 }
553 #elif defined (__NetBSD__)
554 {
555 int mib[2];
556 int value[2];
557 char model[256];
558 char *cpuclass;
559 FILE *f = fopen ("/var/run/dmesg.boot", "r");
560
561 /* first deduce as much as possible from the sysctls */
562 mib[0] = CTL_MACHDEP;
563 #ifdef CPU_FPU_PRESENT
564 mib[1] = CPU_FPU_PRESENT;
565 value[1] = sizeof(int);
566 if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
567 if (value) PF[PF_FLOATING_POINT_EMULATED] = FALSE;
568 else PF[PF_FLOATING_POINT_EMULATED] = TRUE;
569 #endif
570 #ifdef CPU_SSE
571 mib[1] = CPU_SSE; /* this should imply MMX */
572 value[1] = sizeof(int);
573 if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
574 if (value) PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
575 #endif
576 #ifdef CPU_SSE2
577 mib[1] = CPU_SSE2; /* this should imply MMX */
578 value[1] = sizeof(int);
579 if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
580 if (value) PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
581 #endif
582 mib[0] = CTL_HW;
583 mib[1] = HW_NCPU;
584 value[1] = sizeof(int);
585 if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
586 if (value[0] > cachedsi.dwNumberOfProcessors)
587 cachedsi.dwNumberOfProcessors = value[0];
588 mib[1] = HW_MODEL;
589 value[1] = 255;
590 if (sysctl(mib, 2, model, value+1, NULL, 0) >= 0) {
591 model[value[1]] = '\0'; /* just in case */
592 cpuclass = strstr(model, "-class");
593 if (cpuclass != NULL) {
594 while(cpuclass > model && cpuclass[0] != '(') cpuclass--;
595 if (!strncmp(cpuclass+1, "386", 3)) {
596 cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
597 cachedsi.wProcessorLevel= 3;
598 }
599 if (!strncmp(cpuclass+1, "486", 3)) {
600 cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
601 cachedsi.wProcessorLevel= 4;
602 }
603 if (!strncmp(cpuclass+1, "586", 3)) {
604 cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
605 cachedsi.wProcessorLevel= 5;
606 }
607 if (!strncmp(cpuclass+1, "686", 3)) {
608 cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
609 cachedsi.wProcessorLevel= 6;
610 /* this should imply MMX */
611 PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
612 }
613 }
614 }
615
616 /* it may be worth reading from /var/run/dmesg.boot for
617 additional information such as CX8, MMX and TSC
618 (however this information should be considered less
619 reliable than that from the sysctl calls) */
620 if (f != NULL)
621 {
622 while (fgets(model, 255, f) != NULL) {
623 if (sscanf(model,"cpu%d: features %x<", value, value+1) == 2) {
624 /* we could scan the string but it is easier
625 to test the bits directly */
626 if (value[1] & 0x1)
627 PF[PF_FLOATING_POINT_EMULATED] = TRUE;
628 if (value[1] & 0x10)
629 PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
630 if (value[1] & 0x100)
631 PF[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
632 if (value[1] & 0x800000)
633 PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
634
635 break;
636 }
637 }
638 fclose(f);
639 }
640
641 }
642 #elif defined(__FreeBSD__)
643 {
644 int ret, num;
645 unsigned len;
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 = (1 << value) - 1;
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 derive 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 if (!cachedsi.dwActiveProcessorMask)
789 cachedsi.dwActiveProcessorMask = (1 << cachedsi.dwNumberOfProcessors) - 1;
790
791 memcpy(si,&cachedsi,sizeof(*si));
792
793 TRACE("<- CPU arch %d, res'd %d, pagesize %d, minappaddr %p, maxappaddr %p,"
794 " act.cpumask %08x, numcpus %d, CPU type %d, allocgran. %d, CPU level %d, CPU rev %d\n",
795 si->u.s.wProcessorArchitecture, si->u.s.wReserved, si->dwPageSize,
796 si->lpMinimumApplicationAddress, si->lpMaximumApplicationAddress,
797 si->dwActiveProcessorMask, si->dwNumberOfProcessors, si->dwProcessorType,
798 si->dwAllocationGranularity, si->wProcessorLevel, si->wProcessorRevision);
799
800 create_system_registry_keys( &cachedsi );
801 create_env_registry_keys( &cachedsi );
802 }
803
804
805 /***********************************************************************
806 * GetNativeSystemInfo [KERNEL32.@]
807 */
808 VOID WINAPI GetNativeSystemInfo(
809 LPSYSTEM_INFO si /* [out] Destination for system information, may not be NULL */)
810 {
811 static BOOL reported = FALSE;
812 if (!reported) {
813 FIXME("(%p) using GetSystemInfo()\n", si);
814 reported = TRUE;
815 } else
816 TRACE("(%p) using GetSystemInfo()\n", si);
817 GetSystemInfo(si);
818 }
819
820 /***********************************************************************
821 * IsProcessorFeaturePresent [KERNEL32.@]
822 *
823 * Determine if the cpu supports a given feature.
824 *
825 * RETURNS
826 * TRUE, If the processor supports feature,
827 * FALSE otherwise.
828 */
829 BOOL WINAPI IsProcessorFeaturePresent (
830 DWORD feature /* [in] Feature number, (PF_ constants from "winnt.h") */)
831 {
832 SYSTEM_INFO si;
833 GetSystemInfo (&si); /* To ensure the information is loaded and cached */
834
835 if (feature < 64)
836 return PF[feature];
837 else
838 return FALSE;
839 }
Windows API implementation