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Added CPU detection for FreeBSD.

This commit is contained in:
Eric Anholt 2003-05-21 18:24:34 +00:00 committed by Alexandre Julliard
parent c862085b90
commit cd46d71ebd
1 changed files with 99 additions and 2 deletions
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101
misc/cpu.c
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@ -35,6 +35,7 @@
#include <ctype.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
@ -47,6 +48,48 @@
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 void create_registry_keys( const SYSTEM_INFO *info )
@ -368,9 +411,63 @@ VOID WINAPI GetSystemInfo(
}
memcpy(si,&cachedsi,sizeof(*si));
#else /* !linux && !__NetBSD__ */
#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:
case 6: /* PPro/2/3 has same info as P1 */
cachedsi.dwProcessorType = PROCESSOR_INTEL_PENTIUM;
cachedsi.wProcessorLevel = 5;
break;
default:
FIXME("unknown 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_AMD3D_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));
#else
FIXME("not yet supported on this system\n");
#endif /* !linux && !__NetBSD__ */
#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,