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407d863a8a
wine/dlls/kernel/cpu.c
Rein Klazes 407d863a8a Get rid of the rdtsc cpu instruction method for calculation of the 
performance counter. Put the calculation (based on gettimeofday) in
NtQueryPerformanceCounter() and use that in the kernel functions.
2005-01-26 20:41:36 +00:00

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/*
* What processor?
*
* Copyright 1995,1997 Morten Welinder
* Copyright 1997-1998 Marcus Meissner
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#ifdef HAVE_SYS_SYSCTL_H
# include <sys/sysctl.h>
#endif
#ifdef HAVE_MACHINE_CPU_H
# include <machine/cpu.h>
#endif
#include <ctype.h>
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "windef.h"
#include "winbase.h"
#include "winnt.h"
#include "winreg.h"
#include "winternl.h"
#include "winerror.h"
#include "wine/unicode.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(reg);
#define AUTH 0x68747541 /* "Auth" */
#define ENTI 0x69746e65 /* "enti" */
#define CAMD 0x444d4163 /* "cAMD" */
/* Calls cpuid with an eax of 'ax' and returns the 16 bytes in *p
* We are compiled with -fPIC, so we can't clobber ebx.
*/
static inline void do_cpuid(int ax, int *p)
{
#ifdef __i386__
__asm__("pushl %%ebx\n\t"
"cpuid\n\t"
"movl %%ebx, %%esi\n\t"
"popl %%ebx"
: "=a" (p[0]), "=S" (p[1]), "=c" (p[2]), "=d" (p[3])
: "0" (ax));
#endif
}
/* From xf86info havecpuid.c 1.11 */
static inline int have_cpuid(void)
{
#ifdef __i386__
unsigned int f1, f2;
__asm__("pushfl\n\t"
"pushfl\n\t"
"popl %0\n\t"
"movl %0,%1\n\t"
"xorl %2,%0\n\t"
"pushl %0\n\t"
"popfl\n\t"
"pushfl\n\t"
"popl %0\n\t"
"popfl"
: "=&r" (f1), "=&r" (f2)
: "ir" (0x00200000));
return ((f1^f2) & 0x00200000) != 0;
#else
return 0;
#endif
}
static BYTE PF[64] = {0,};
static ULONGLONG cpuHz = 1000000000; /* default to a 1GHz */
static void create_registry_keys( const SYSTEM_INFO *info )
{
static const WCHAR SystemW[] = {'M','a','c','h','i','n','e','\\',
'H','a','r','d','w','a','r','e','\\',
'D','e','s','c','r','i','p','t','i','o','n','\\',
'S','y','s','t','e','m',0};
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};
static const WCHAR cpuW[] = {'C','e','n','t','r','a','l','P','r','o','c','e','s','s','o','r',0};
static const WCHAR IdentifierW[] = {'I','d','e','n','t','i','f','i','e','r',0};
static const WCHAR SysidW[] = {'A','T',' ','c','o','m','p','a','t','i','b','l','e',0};
static const WCHAR mhzKeyW[] = {'~','M','H','z',0};
unsigned int i;
HKEY hkey, system_key, cpu_key;
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW, valueW;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = &nameW;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
RtlInitUnicodeString( &nameW, SystemW );
if (NtCreateKey( &system_key, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL )) return;
RtlInitUnicodeString( &valueW, IdentifierW );
NtSetValueKey( system_key, &valueW, 0, REG_SZ, SysidW, (strlenW(SysidW)+1) * sizeof(WCHAR) );
attr.RootDirectory = system_key;
RtlInitUnicodeString( &nameW, fpuW );
if (!NtCreateKey( &hkey, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL )) NtClose( hkey );
RtlInitUnicodeString( &nameW, cpuW );
if (!NtCreateKey( &cpu_key, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL ))
{
for (i = 0; i < info->dwNumberOfProcessors; i++)
{
char num[10], id[20];
attr.RootDirectory = cpu_key;
sprintf( num, "%d", i );
RtlCreateUnicodeStringFromAsciiz( &nameW, num );
if (!NtCreateKey( &hkey, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL ))
{
WCHAR idW[20];
DWORD cpuMHz = cpuHz / 1000000;
sprintf( id, "CPU %ld", info->dwProcessorType );
RtlMultiByteToUnicodeN( idW, sizeof(idW), NULL, id, strlen(id)+1 );
NtSetValueKey( hkey, &valueW, 0, REG_SZ, idW, (strlenW(idW)+1)*sizeof(WCHAR) );
RtlInitUnicodeString( &valueW, mhzKeyW );
NtSetValueKey( hkey, &valueW, 0, REG_DWORD, &cpuMHz, sizeof(DWORD) );
NtClose( hkey );
}
RtlFreeUnicodeString( &nameW );
}
NtClose( cpu_key );
}
NtClose( system_key );
}
/****************************************************************************
* QueryPerformanceCounter (KERNEL32.@)
*
* Get the current value of the performance counter.
*
* PARAMS
* counter [O] Destination for the current counter reading
*
* RETURNS
* Success: TRUE. counter contains the current reading
* Failure: FALSE.
*
* SEE ALSO
* See QueryPerformanceFrequency.
*/
BOOL WINAPI QueryPerformanceCounter(PLARGE_INTEGER counter)
{
LARGE_INTEGER frequency;
NtQueryPerformanceCounter( counter, &frequency );
return TRUE;
}
/****************************************************************************
* QueryPerformanceFrequency (KERNEL32.@)
*
* Get the resolution of the performace counter.
*
* PARAMS
* frequency [O] Destination for the counter resolution
*
* RETURNS
* Success. TRUE. Frequency contains the resolution of the counter.
* Failure: FALSE.
*
* SEE ALSO
* See QueryPerformanceCounter.
*/
BOOL WINAPI QueryPerformanceFrequency(PLARGE_INTEGER frequency)
{
LARGE_INTEGER counter;
NtQueryPerformanceCounter( &counter, frequency );
return TRUE;
}
/***********************************************************************
* GetSystemInfo [KERNEL32.@]
*
* Get information about the system.
*
* RETURNS
* Nothing.
*
* NOTES
* On the first call it creates cached values, so it doesn't have to determine
* them repeatedly. On Linux, the "/proc/cpuinfo" special file is used.
*
* It creates a registry subhierarchy, looking like:
* "\HARDWARE\DESCRIPTION\System\CentralProcessor\<processornumber>\Identifier (CPU x86)".
* Note that there is a hierarchy for every processor installed, so this
* supports multiprocessor systems. This is done like Win95 does it, I think.
*
* It also creates a cached flag array for IsProcessorFeaturePresent().
*/
VOID WINAPI GetSystemInfo(
LPSYSTEM_INFO si /* [out] Destination for system information, may not be NULL */)
{
static int cache = 0;
static SYSTEM_INFO cachedsi;
TRACE("si=0x%p\n", si);
if (cache) {
memcpy(si,&cachedsi,sizeof(*si));
return;
}
memset(PF,0,sizeof(PF));
/* choose sensible defaults ...
* FIXME: perhaps overrideable with precompiler flags?
*/
cachedsi.u.s.wProcessorArchitecture = PROCESSOR_ARCHITECTURE_INTEL;
cachedsi.dwPageSize = getpagesize();
/* FIXME: the two entries below should be computed somehow... */
cachedsi.lpMinimumApplicationAddress = (void *)0x00010000;
cachedsi.lpMaximumApplicationAddress = (void *)0x7FFFFFFF;
cachedsi.dwActiveProcessorMask = 1;
cachedsi.dwNumberOfProcessors = 1;
cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
cachedsi.dwAllocationGranularity = 0x10000;
cachedsi.wProcessorLevel = 5; /* 586 */
cachedsi.wProcessorRevision = 0;
cache = 1; /* even if there is no more info, we now have a cacheentry */
memcpy(si,&cachedsi,sizeof(*si));
/* Hmm, reasonable processor feature defaults? */
#ifdef linux
{
char line[200];
FILE *f = fopen ("/proc/cpuinfo", "r");
if (!f)
return;
while (fgets(line,200,f)!=NULL) {
char *s,*value;
/* NOTE: the ':' is the only character we can rely on */
if (!(value = strchr(line,':')))
continue;
/* terminate the valuename */
s = value - 1;
while ((s >= line) && ((*s == ' ') || (*s == '\t'))) s--;
*(s + 1) = '\0';
/* and strip leading spaces from value */
value += 1;
while (*value==' ') value++;
if ((s=strchr(value,'\n')))
*s='\0';
/* 2.1 method */
if (!strcasecmp(line, "cpu family")) {
if (isdigit (value[0])) {
switch (value[0] - '0') {
case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
cachedsi.wProcessorLevel= 3;
break;
case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
cachedsi.wProcessorLevel= 4;
break;
case 5: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
cachedsi.wProcessorLevel= 5;
break;
case 6: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
cachedsi.wProcessorLevel= 6;
break;
case 1: /* two-figure levels */
if (value[1] == '5')
{
cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
cachedsi.wProcessorLevel= 6;
break;
}
/* fall through */
default:
FIXME("unknown cpu family '%s', please report ! (-> setting to 386)\n", value);
break;
}
}
continue;
}
/* old 2.0 method */
if (!strcasecmp(line, "cpu")) {
if ( isdigit (value[0]) && value[1] == '8' &&
value[2] == '6' && value[3] == 0
) {
switch (value[0] - '0') {
case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
cachedsi.wProcessorLevel= 3;
break;
case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
cachedsi.wProcessorLevel= 4;
break;
case 5: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
cachedsi.wProcessorLevel= 5;
break;
case 6: cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
cachedsi.wProcessorLevel= 6;
break;
default:
FIXME("unknown Linux 2.0 cpu family '%s', please report ! (-> setting to 386)\n", value);
break;
}
}
continue;
}
if (!strcasecmp(line,"fdiv_bug")) {
if (!strncasecmp(value,"yes",3))
PF[PF_FLOATING_POINT_PRECISION_ERRATA] = TRUE;
continue;
}
if (!strcasecmp(line,"fpu")) {
if (!strncasecmp(value,"no",2))
PF[PF_FLOATING_POINT_EMULATED] = TRUE;
continue;
}
if (!strcasecmp(line,"processor")) {
/* processor number counts up... */
unsigned int x;
if (sscanf(value,"%d",&x))
if (x+1>cachedsi.dwNumberOfProcessors)
cachedsi.dwNumberOfProcessors=x+1;
continue;
}
if (!strcasecmp(line,"stepping")) {
int x;
if (sscanf(value,"%d",&x))
cachedsi.wProcessorRevision = x;
continue;
}
if (!strcasecmp(line, "cpu MHz")) {
double cmz;
if (sscanf( value, "%lf", &cmz ) == 1) {
/* SYSTEMINFO doesn't have a slot for cpu speed, so store in a global */
cpuHz = cmz * 1000 * 1000;
TRACE("CPU speed read as %lld\n", cpuHz);
}
continue;
}
if ( !strcasecmp(line,"flags") ||
!strcasecmp(line,"features")
) {
if (strstr(value,"cx8"))
PF[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
if (strstr(value,"mmx"))
PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
if (strstr(value,"tsc"))
PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
if (strstr(value,"3dnow"))
PF[PF_3DNOW_INSTRUCTIONS_AVAILABLE] = TRUE;
/* This will also catch sse2, but we have sse itself
* if we have sse2, so no problem */
if (strstr(value,"sse"))
PF[PF_XMMI_INSTRUCTIONS_AVAILABLE] = TRUE;
if (strstr(value,"sse2"))
PF[PF_XMMI64_INSTRUCTIONS_AVAILABLE] = TRUE;
if (strstr(value,"pae"))
PF[PF_PAE_ENABLED] = TRUE;
continue;
}
}
fclose (f);
}
memcpy(si,&cachedsi,sizeof(*si));
#elif defined (__NetBSD__)
{
int mib[2];
int value[2];
char model[256];
char *cpuclass;
FILE *f = fopen ("/var/run/dmesg.boot", "r");
/* first deduce as much as possible from the sysctls */
mib[0] = CTL_MACHDEP;
#ifdef CPU_FPU_PRESENT
mib[1] = CPU_FPU_PRESENT;
value[1] = sizeof(int);
if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
if (value) PF[PF_FLOATING_POINT_EMULATED] = FALSE;
else PF[PF_FLOATING_POINT_EMULATED] = TRUE;
#endif
#ifdef CPU_SSE
mib[1] = CPU_SSE; /* this should imply MMX */
value[1] = sizeof(int);
if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
if (value) PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
#endif
#ifdef CPU_SSE2
mib[1] = CPU_SSE2; /* this should imply MMX */
value[1] = sizeof(int);
if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
if (value) PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
#endif
mib[0] = CTL_HW;
mib[1] = HW_NCPU;
value[1] = sizeof(int);
if (sysctl(mib, 2, value, value+1, NULL, 0) >= 0)
if (value[0] > cachedsi.dwNumberOfProcessors)
cachedsi.dwNumberOfProcessors = value[0];
mib[1] = HW_MODEL;
value[1] = 255;
if (sysctl(mib, 2, model, value+1, NULL, 0) >= 0) {
model[value[1]] = '\0'; /* just in case */
cpuclass = strstr(model, "-class");
if (cpuclass != NULL) {
while(cpuclass > model && cpuclass[0] != '(') cpuclass--;
if (!strncmp(cpuclass+1, "386", 3)) {
cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
cachedsi.wProcessorLevel= 3;
}
if (!strncmp(cpuclass+1, "486", 3)) {
cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
cachedsi.wProcessorLevel= 4;
}
if (!strncmp(cpuclass+1, "586", 3)) {
cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
cachedsi.wProcessorLevel= 5;
}
if (!strncmp(cpuclass+1, "686", 3)) {
cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
cachedsi.wProcessorLevel= 6;
/* this should imply MMX */
PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
}
}
}
/* it may be worth reading from /var/run/dmesg.boot for
additional information such as CX8, MMX and TSC
(however this information should be considered less
reliable than that from the sysctl calls) */
if (f != NULL)
{
while (fgets(model, 255, f) != NULL) {
if (sscanf(model,"cpu%d: features %x<", value, value+1) == 2) {
/* we could scan the string but it is easier
to test the bits directly */
if (value[1] & 0x1)
PF[PF_FLOATING_POINT_EMULATED] = TRUE;
if (value[1] & 0x10)
PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
if (value[1] & 0x100)
PF[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
if (value[1] & 0x800000)
PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
break;
}
}
fclose(f);
}
}
memcpy(si,&cachedsi,sizeof(*si));
#elif defined(__FreeBSD__)
{
unsigned int regs[4], regs2[4];
int ret, len, num;
if (!have_cpuid())
regs[0] = 0; /* No cpuid support -- skip the rest */
else
do_cpuid(0x00000000, regs); /* get standard cpuid level and vendor name */
if (regs[0]>=0x00000001) { /* Check for supported cpuid version */
do_cpuid(0x00000001, regs2); /* get cpu features */
switch ((regs2[0] >> 8)&0xf) { /* cpu family */
case 3: cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
cachedsi.wProcessorLevel = 3;
break;
case 4: cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
cachedsi.wProcessorLevel = 4;
break;
case 5:
cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
cachedsi.wProcessorLevel = 5;
break;
case 6:
case 15: /* PPro/2/3/4 has same info as P1 */
cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
cachedsi.wProcessorLevel = 6;
break;
default:
FIXME("unknown FreeBSD cpu family %d, please report! (-> setting to 386)\n", \
(regs2[0] >> 8)&0xf);
break;
}
PF[PF_FLOATING_POINT_EMULATED] = !(regs2[3] & 1);
PF[PF_RDTSC_INSTRUCTION_AVAILABLE] = (regs2[3] & (1 << 4 )) >> 4;
PF[PF_COMPARE_EXCHANGE_DOUBLE] = (regs2[3] & (1 << 8 )) >> 8;
PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = (regs2[3] & (1 << 23)) >> 23;
/* Check for OS support of SSE -- Is this used, and should it be sse1 or sse2? */
/*len = sizeof(num);
ret = sysctlbyname("hw.instruction_sse", &num, &len, NULL, 0);
if (!ret)
PF[PF_XMMI_INSTRUCTIONS_AVAILABLE] = num;*/
if (regs[1] == AUTH &&
regs[3] == ENTI &&
regs[2] == CAMD) {
do_cpuid(0x80000000, regs); /* get vendor cpuid level */
if (regs[0]>=0x80000001) {
do_cpuid(0x80000001, regs2); /* get vendor features */
PF[PF_3DNOW_INSTRUCTIONS_AVAILABLE] =
(regs2[3] & (1 << 31 )) >> 31;
}
}
}
len = sizeof(num);
ret = sysctlbyname("hw.ncpu", &num, &len, NULL, 0);
if (!ret)
cachedsi.dwNumberOfProcessors = num;
}
memcpy(si,&cachedsi,sizeof(*si));
#elif defined (__APPLE__)
{
size_t valSize;
unsigned long long longVal;
int value;
int cputype;
valSize = sizeof(int);
if (sysctlbyname ("hw.optional.floatingpoint", &value, &valSize, NULL, 0) == 0)
{
if (value)
PF[PF_FLOATING_POINT_EMULATED] = FALSE;
else
PF[PF_FLOATING_POINT_EMULATED] = TRUE;
}
valSize = sizeof(int);
if (sysctlbyname ("hw.ncpu", &value, &valSize, NULL, 0) == 0)
cachedsi.dwNumberOfProcessors = value;
valSize = sizeof(int);
if (sysctlbyname ("hw.activecpu", &value, &valSize, NULL, 0) == 0)
cachedsi.dwActiveProcessorMask = value;
valSize = sizeof(int);
if (sysctlbyname ("hw.cputype", &cputype, &valSize, NULL, 0) == 0)
{
valSize = sizeof(int);
if (sysctlbyname ("hw.cpusubtype", &value, &valSize, NULL, 0) == 0)
{
switch (cputype)
{
case CPU_TYPE_POWERPC:
cachedsi.u.s.wProcessorArchitecture = PROCESSOR_ARCHITECTURE_PPC;
switch (value)
{
case CPU_SUBTYPE_POWERPC_601:
case CPU_SUBTYPE_POWERPC_602:
cachedsi.dwProcessorType = PROCESSOR_PPC_601;
cachedsi.wProcessorLevel = 1;
break;
case CPU_SUBTYPE_POWERPC_603:
cachedsi.dwProcessorType = PROCESSOR_PPC_603;
cachedsi.wProcessorLevel = 3;
break;
case CPU_SUBTYPE_POWERPC_603e:
case CPU_SUBTYPE_POWERPC_603ev:
cachedsi.dwProcessorType = PROCESSOR_PPC_603;
cachedsi.wProcessorLevel = 6;
break;
case CPU_SUBTYPE_POWERPC_604:
cachedsi.dwProcessorType = PROCESSOR_PPC_604;
cachedsi.wProcessorLevel = 4;
break;
case CPU_SUBTYPE_POWERPC_604e:
cachedsi.dwProcessorType = PROCESSOR_PPC_604;
cachedsi.wProcessorLevel = 9;
break;
case CPU_SUBTYPE_POWERPC_620:
cachedsi.dwProcessorType = PROCESSOR_PPC_620;
cachedsi.wProcessorLevel = 20;
break;
case CPU_SUBTYPE_POWERPC_750:
case CPU_SUBTYPE_POWERPC_7400:
case CPU_SUBTYPE_POWERPC_7450:
/* G3/G4 derivate from 603 so ... */
cachedsi.dwProcessorType = PROCESSOR_PPC_603;
cachedsi.wProcessorLevel = 6;
break;
case CPU_SUBTYPE_POWERPC_970:
cachedsi.dwProcessorType = PROCESSOR_PPC_604;
cachedsi.wProcessorLevel = 9;
/* :o) PF[PF_ALTIVEC_INSTRUCTIONS_AVAILABLE] ;-) */
break;
default: break;
}
break; /* CPU_TYPE_POWERPC */
case CPU_TYPE_I386:
cachedsi.u.s.wProcessorArchitecture = PROCESSOR_ARCHITECTURE_INTEL;
switch (value)
{
case CPU_SUBTYPE_386:
cachedsi.dwProcessorType = PROCESSOR_INTEL_386;
cachedsi.wProcessorLevel = 3;
break;
case CPU_SUBTYPE_486:
case CPU_SUBTYPE_486SX:
cachedsi.dwProcessorType = PROCESSOR_INTEL_486;
cachedsi.wProcessorLevel = 4;
break;
case CPU_SUBTYPE_586:
case CPU_SUBTYPE_PENTPRO:
cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
cachedsi.wProcessorLevel = 5;
break;
case CPU_SUBTYPE_PENTII_M3:
case CPU_SUBTYPE_PENTII_M5:
cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
cachedsi.wProcessorLevel = 5;
/* this should imply MMX */
PF[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
break;
default: break;
}
break; /* CPU_TYPE_I386 */
default: break;
} /* switch (cputype) */
}
}
valSize = sizeof(longVal);
if (!sysctlbyname("hw.cpufrequency", &longVal, &valSize, NULL, 0))
cpuHz = longVal;
}
memcpy(si,&cachedsi,sizeof(*si));
#else
FIXME("not yet supported on this system\n");
#endif
TRACE("<- CPU arch %d, res'd %d, pagesize %ld, minappaddr %p, maxappaddr %p,"
" act.cpumask %08lx, numcpus %ld, CPU type %ld, allocgran. %ld, CPU level %d, CPU rev %d\n",
si->u.s.wProcessorArchitecture, si->u.s.wReserved, si->dwPageSize,
si->lpMinimumApplicationAddress, si->lpMaximumApplicationAddress,
si->dwActiveProcessorMask, si->dwNumberOfProcessors, si->dwProcessorType,
si->dwAllocationGranularity, si->wProcessorLevel, si->wProcessorRevision);
create_registry_keys( &cachedsi );
}
/***********************************************************************
* IsProcessorFeaturePresent [KERNEL32.@]
*
* Determine if the cpu supports a given feature.
*
* RETURNS
* TRUE, If the processor supports feature,
* FALSE otherwise.
*/
BOOL WINAPI IsProcessorFeaturePresent (
DWORD feature /* [in] Feature number, (PF_ constants from "winnt.h") */)
{
SYSTEM_INFO si;
GetSystemInfo (&si); /* To ensure the information is loaded and cached */
if (feature < 64)
return PF[feature];
else
return FALSE;
}
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