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ntdll: Reuse kernel32's cpu info to implement NtQuerySystemInformation(SystemProcessInformation).

This commit is contained in:
Eric Pouech 2009-09-15 21:38:07 +02:00 committed by Alexandre Julliard
parent 0bf33d6ac2
commit 57f714f3eb
3 changed files with 488 additions and 26 deletions
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511
dlls/ntdll/nt.c
View File

@ -21,10 +21,30 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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
#ifdef HAVE_MACH_MACHINE_H
# include <mach/machine.h>
#endif
#include <ctype.h>
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#include <time.h>
#define NONAMELESSUNION
@ -36,6 +56,7 @@
#include "winternl.h"
#include "ntdll_misc.h"
#include "wine/server.h"
#include "ddk/wdm.h"
#ifdef __APPLE__
#include <mach/mach_init.h>
@ -751,6 +772,458 @@ NTSTATUS WINAPI NtSetIntervalProfile(
return STATUS_SUCCESS;
}
static SYSTEM_CPU_INFORMATION cached_sci;
static DWORD cpuHz;
#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(unsigned int ax, unsigned 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 inline void get_cpuinfo(SYSTEM_CPU_INFORMATION* info)
{
unsigned int regs[4], regs2[4];
if (!have_cpuid()) return;
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: info->Level = 3; break;
case 4: info->Level = 4; break;
case 5: info->Level = 5; break;
case 15: /* PPro/2/3/4 has same info as P1 */
case 6: info->Level = 6; break;
default:
FIXME("unknown cpu family %d, please report! (-> setting to 386)\n",
(regs2[0] >> 8)&0xf);
info->Level = 3;
break;
}
user_shared_data->ProcessorFeatures[PF_FLOATING_POINT_EMULATED] = !(regs2[3] & 1);
user_shared_data->ProcessorFeatures[PF_RDTSC_INSTRUCTION_AVAILABLE] = (regs2[3] & (1 << 4 )) >> 4;
user_shared_data->ProcessorFeatures[PF_COMPARE_EXCHANGE_DOUBLE] = (regs2[3] & (1 << 8 )) >> 8;
user_shared_data->ProcessorFeatures[PF_MMX_INSTRUCTIONS_AVAILABLE] = (regs2[3] & (1 << 23)) >> 23;
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 */
user_shared_data->ProcessorFeatures[PF_3DNOW_INSTRUCTIONS_AVAILABLE] = (regs2[3] & (1 << 31 )) >> 31;
}
}
}
}
/******************************************************************
* fill_cpu_info
*
* inits a couple of places with CPU related information:
* - cached_sci & cpuHZ in this file
* - Peb->NumberOfProcessors
* - SharedUserData->ProcessFeatures[] array
*/
void fill_cpu_info(void)
{
memset(&cached_sci, 0, sizeof(cached_sci));
/* choose sensible defaults ...
* FIXME: perhaps overridable with precompiler flags?
*/
cached_sci.Architecture = PROCESSOR_ARCHITECTURE_INTEL;
cached_sci.Level = 5; /* 586 */
cached_sci.Revision = 0;
cached_sci.Reserved = 0;
cached_sci.FeatureSet = 0x1fff; /* FIXME: set some sensible defaults out of ProcessFeatures[] */
NtCurrentTeb()->Peb->NumberOfProcessors = 1;
/* 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';
if (!strcasecmp(line, "processor"))
{
/* processor number counts up... */
unsigned int x;
if (sscanf(value, "%d",&x))
if (x + 1 > NtCurrentTeb()->Peb->NumberOfProcessors)
NtCurrentTeb()->Peb->NumberOfProcessors = x + 1;
continue;
}
if (!strcasecmp(line, "model"))
{
/* First part of Revision */
int x;
if (sscanf(value, "%d",&x))
cached_sci.Revision = cached_sci.Revision | (x << 8);
continue;
}
/* 2.1 method */
if (!strcasecmp(line, "cpu family"))
{
if (isdigit(value[0]))
{
cached_sci.Level = atoi(value);
}
continue;
}
/* old 2.0 method */
if (!strcasecmp(line, "cpu"))
{
if (isdigit(value[0]) && value[1] == '8' && value[2] == '6' && value[3] == 0)
{
switch (cached_sci.Level = value[0] - '0')
{
case 3:
case 4:
case 5:
case 6:
break;
default:
FIXME("unknown Linux 2.0 cpu family '%s', please report ! (-> setting to 386)\n", value);
cached_sci.Level = 3;
break;
}
}
continue;
}
if (!strcasecmp(line, "stepping"))
{
/* Second part of Revision */
int x;
if (sscanf(value, "%d",&x))
cached_sci.Revision = cached_sci.Revision | 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;
}
continue;
}
if (!strcasecmp(line, "fdiv_bug"))
{
if (!strncasecmp(value, "yes",3))
user_shared_data->ProcessorFeatures[PF_FLOATING_POINT_PRECISION_ERRATA] = TRUE;
continue;
}
if (!strcasecmp(line, "fpu"))
{
if (!strncasecmp(value, "no",2))
user_shared_data->ProcessorFeatures[PF_FLOATING_POINT_EMULATED] = TRUE;
continue;
}
if (!strcasecmp(line, "flags") || !strcasecmp(line, "features"))
{
if (strstr(value, "cx8"))
user_shared_data->ProcessorFeatures[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
if (strstr(value, "mmx"))
user_shared_data->ProcessorFeatures[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
if (strstr(value, "tsc"))
user_shared_data->ProcessorFeatures[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
if (strstr(value, "3dnow"))
user_shared_data->ProcessorFeatures[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"))
user_shared_data->ProcessorFeatures[PF_XMMI_INSTRUCTIONS_AVAILABLE] = TRUE;
if (strstr(value, "sse2"))
user_shared_data->ProcessorFeatures[PF_XMMI64_INSTRUCTIONS_AVAILABLE] = TRUE;
if (strstr(value, "pae"))
user_shared_data->ProcessorFeatures[PF_PAE_ENABLED] = TRUE;
continue;
}
}
fclose(f);
}
#elif defined (__NetBSD__)
{
int mib[2];
int value;
size_t val_len;
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;
val_len = sizeof(value);
if (sysctl(mib, 2, &value, &val_len, NULL, 0) >= 0)
user_shared_data->ProcessorFeatures[PF_FLOATING_POINT_EMULATED] = !value;
#endif
#ifdef CPU_SSE
mib[1] = CPU_SSE; /* this should imply MMX */
val_len = sizeof(value);
if (sysctl(mib, 2, &value, &val_len, NULL, 0) >= 0)
if (value) user_shared_data->ProcessorFeatures[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
#endif
#ifdef CPU_SSE2
mib[1] = CPU_SSE2; /* this should imply MMX */
val_len = sizeof(value);
if (sysctl(mib, 2, &value, &val_len, NULL, 0) >= 0)
if (value) user_shared_data->ProcessorFeatures[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
#endif
mib[0] = CTL_HW;
mib[1] = HW_NCPU;
val_len = sizeof(value);
if (sysctl(mib, 2, &value, &val_len, NULL, 0) >= 0)
if (value > NtCurrentTeb()->Peb->NumberOfProcessors)
NtCurrentTeb()->Peb->NumberOfProcessors = value;
mib[1] = HW_MODEL;
val_len = sizeof(model)-1;
if (sysctl(mib, 2, model, &val_len, NULL, 0) >= 0)
{
model[val_len] = '\0'; /* just in case */
cpuclass = strstr(model, "-class");
if (cpuclass != NULL) {
while(cpuclass > model && cpuclass[0] != '(') cpuclass--;
if (!strncmp(cpuclass+1, "386", 3))
{
cached_sci.Level= 3;
}
if (!strncmp(cpuclass+1, "486", 3))
{
cached_sci.Level= 4;
}
if (!strncmp(cpuclass+1, "586", 3))
{
cached_sci.Level= 5;
}
if (!strncmp(cpuclass+1, "686", 3))
{
cached_sci.Level= 6;
/* this should imply MMX */
user_shared_data->ProcessorFeatures[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)
{
int cpu, features;
if (sscanf(model, "cpu%d: features %x<", &cpu, &features) == 2)
{
/* we could scan the string but it is easier
to test the bits directly */
if (features & 0x1)
user_shared_data->ProcessorFeatures[PF_FLOATING_POINT_EMULATED] = TRUE;
if (features & 0x10)
user_shared_data->ProcessorFeatures[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
if (features & 0x100)
user_shared_data->ProcessorFeatures[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
if (features & 0x800000)
user_shared_data->ProcessorFeatures[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
break;
}
}
fclose(f);
}
}
#elif defined(__FreeBSD__)
{
int ret, num;
size_t len;
get_cpuinfo( &cached_sci );
/* 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)
user_shared_data->ProcessorFeatures[PF_XMMI_INSTRUCTIONS_AVAILABLE] = num;*/
len = sizeof(num);
ret = sysctlbyname("hw.ncpu", &num, &len, NULL, 0);
if (!ret)
NtCurrentTeb()->Peb->NumberOfProcessors = num;
}
#elif defined(__sun)
{
int num = sysconf( _SC_NPROCESSORS_ONLN );
if (num == -1) num = 1;
get_cpuinfo( &cached_sci );
NtCurrentTeb()->Peb->NumberOfProcessors = num;
}
#elif defined (__APPLE__)
{
size_t valSize;
unsigned long long longVal;
int value;
int cputype;
char buffer[256];
valSize = sizeof(int);
if (sysctlbyname ("hw.optional.floatingpoint", &value, &valSize, NULL, 0) == 0)
{
if (value)
user_shared_data->ProcessorFeatures[PF_FLOATING_POINT_EMULATED] = FALSE;
else
user_shared_data->ProcessorFeatures[PF_FLOATING_POINT_EMULATED] = TRUE;
}
valSize = sizeof(int);
if (sysctlbyname ("hw.ncpu", &value, &valSize, NULL, 0) == 0)
NtCurrentTeb()->Peb->NumberOfProcessors = value;
/* FIXME: we don't use the "hw.activecpu" value... but the cached one */
valSize = sizeof(int);
if (sysctlbyname ("hw.cputype", &cputype, &valSize, NULL, 0) == 0)
{
switch (cputype)
{
case CPU_TYPE_POWERPC:
cached_sci.ProcessorArchitecture = PROCESSOR_ARCHITECTURE_PPC;
valSize = sizeof(int);
if (sysctlbyname ("hw.cpusubtype", &value, &valSize, NULL, 0) == 0)
{
switch (value)
{
case CPU_SUBTYPE_POWERPC_601:
case CPU_SUBTYPE_POWERPC_602: cached_sci.Level = 1; break;
case CPU_SUBTYPE_POWERPC_603: cached_sci.Level = 3; break;
case CPU_SUBTYPE_POWERPC_603e:
case CPU_SUBTYPE_POWERPC_603ev: cached_sci.Level = 6; break;
case CPU_SUBTYPE_POWERPC_604: cached_sci.Level = 4; break;
case CPU_SUBTYPE_POWERPC_604e: cached_sci.Level = 9; break;
case CPU_SUBTYPE_POWERPC_620: cached_sci.Level = 20; break;
case CPU_SUBTYPE_POWERPC_750: /* G3/G4 derive from 603 so ... */
case CPU_SUBTYPE_POWERPC_7400:
case CPU_SUBTYPE_POWERPC_7450: cached_sci.Level = 6; break;
case CPU_SUBTYPE_POWERPC_970: cached_sci.Level = 9;
/* :o) user_shared_data->ProcessorFeatures[PF_ALTIVEC_INSTRUCTIONS_AVAILABLE] ;-) */
break;
default: break;
}
}
break; /* CPU_TYPE_POWERPC */
case CPU_TYPE_I386:
cached_sci.Architecture = PROCESSOR_ARCHITECTURE_INTEL;
valSize = sizeof(int);
if (sysctlbyname ("machdep.cpu.family", &value, &valSize, NULL, 0) == 0)
{
cached_sci.Level = value;
}
valSize = sizeof(int);
if (sysctlbyname ("machdep.cpu.model", &value, &valSize, NULL, 0) == 0)
cached_sci.Revision = (value << 8);
valSize = sizeof(int);
if (sysctlbyname ("machdep.cpu.stepping", &value, &valSize, NULL, 0) == 0)
cached_sci.Revision |= value;
valSize = sizeof(buffer);
if (sysctlbyname ("machdep.cpu.features", buffer, &valSize, NULL, 0) == 0)
{
cached_sci.Revision |= value;
if (strstr(buffer, "CX8")) user_shared_data->ProcessorFeatures[PF_COMPARE_EXCHANGE_DOUBLE] = TRUE;
if (strstr(buffer, "MMX")) user_shared_data->ProcessorFeatures[PF_MMX_INSTRUCTIONS_AVAILABLE] = TRUE;
if (strstr(buffer, "TSC")) user_shared_data->ProcessorFeatures[PF_RDTSC_INSTRUCTION_AVAILABLE] = TRUE;
if (strstr(buffer, "3DNOW")) user_shared_data->ProcessorFeatures[PF_3DNOW_INSTRUCTIONS_AVAILABLE] = TRUE;
if (strstr(buffer, "SSE")) user_shared_data->ProcessorFeatures[PF_XMMI_INSTRUCTIONS_AVAILABLE] = TRUE;
if (strstr(buffer, "SSE2")) user_shared_data->ProcessorFeatures[PF_XMMI64_INSTRUCTIONS_AVAILABLE] = TRUE;
if (strstr(buffer, "PAE")) user_shared_data->ProcessorFeatures[PF_PAE_ENABLED] = TRUE;
}
break; /* CPU_TYPE_I386 */
default: break;
} /* switch (cputype) */
}
valSize = sizeof(longVal);
if (!sysctlbyname("hw.cpufrequency", &longVal, &valSize, NULL, 0))
cpuHz = longVal;
}
#else
FIXME("not yet supported on this system\n");
#endif
TRACE("<- CPU arch %d, level %d, rev %d, features 0x%x\n",
cached_sci.Architecture, cached_sci.Level, cached_sci.Revision, cached_sci.FeatureSet);
}
/******************************************************************************
* NtQuerySystemInformation [NTDLL.@]
* ZwQuerySystemInformation [NTDLL.@]
@ -800,24 +1273,12 @@ NTSTATUS WINAPI NtQuerySystemInformation(
}
break;
case SystemCpuInformation:
if (Length >= (len = sizeof(cached_sci)))
{
SYSTEM_CPU_INFORMATION sci;
/* FIXME: move some code from kernel/cpu.c to process this */
sci.Architecture = PROCESSOR_ARCHITECTURE_INTEL;
sci.Level = 6; /* 686, aka Pentium II+ */
sci.Revision = 0;
sci.Reserved = 0;
sci.FeatureSet = 0x1fff;
len = sizeof(sci);
if ( Length >= len)
{
if (!SystemInformation) ret = STATUS_ACCESS_VIOLATION;
else memcpy( SystemInformation, &sci, len);
}
else ret = STATUS_INFO_LENGTH_MISMATCH;
if (!SystemInformation) ret = STATUS_ACCESS_VIOLATION;
else memcpy(SystemInformation, &cached_sci, len);
}
else ret = STATUS_INFO_LENGTH_MISMATCH;
break;
case SystemPerformanceInformation:
{
@ -1018,7 +1479,7 @@ NTSTATUS WINAPI NtQuerySystemInformation(
}
#else
{
FILE *cpuinfo = fopen("/proc/stat","r");
FILE *cpuinfo = fopen("/proc/stat", "r");
if (cpuinfo)
{
unsigned usr,nice,sys;
@ -1029,12 +1490,12 @@ NTSTATUS WINAPI NtQuerySystemInformation(
/* first line is combined usage */
if (fgets(line,255,cpuinfo))
count = sscanf(line,"%s %u %u %u %lu",name, &usr, &nice,
&sys, &idle);
count = sscanf(line, "%s %u %u %u %lu", name, &usr, &nice,
&sys, &idle);
else
count = 0;
/* we set this up in the for older non-smp enabled kernels */
if (count == 5 && strcmp(name,"cpu")==0)
if (count == 5 && strcmp(name, "cpu") == 0)
{
sppi = RtlAllocateHeap(GetProcessHeap(), 0,
sizeof(SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION));
@ -1047,12 +1508,12 @@ NTSTATUS WINAPI NtQuerySystemInformation(
do
{
if (fgets(line,255,cpuinfo))
count = sscanf(line,"%s %u %u %u %lu",name, &usr,
&nice, &sys, &idle);
if (fgets(line, 255, cpuinfo))
count = sscanf(line, "%s %u %u %u %lu", name, &usr,
&nice, &sys, &idle);
else
count = 0;
if (count == 5 && strncmp(name,"cpu",3)==0)
if (count == 5 && strncmp(name, "cpu", 3)==0)
{
out_cpus --;
if (name[3]=='0') /* first cpu */

1
dlls/ntdll/ntdll_misc.h
View File

@ -68,6 +68,7 @@ extern HANDLE thread_init(void);
extern void actctx_init(void);
extern void virtual_init(void);
extern void virtual_init_threading(void);
extern void fill_cpu_info(void);
/* server support */
extern timeout_t server_start_time;

2
dlls/ntdll/thread.c
View File

@ -277,7 +277,6 @@ HANDLE thread_init(void)
MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
peb = addr;
peb->NumberOfProcessors = 1;
peb->ProcessParameters = &params;
peb->TlsBitmap = &tls_bitmap;
peb->TlsExpansionBitmap = &tls_expansion_bitmap;
@ -316,6 +315,7 @@ HANDLE thread_init(void)
signal_init_thread( teb );
virtual_init_threading();
fill_cpu_info();
debug_info.str_pos = debug_info.strings;
debug_info.out_pos = debug_info.output;