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system.c
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system.c
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/*
* System information APIs
*
* Copyright 1996-1998 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#if 0
#pragma makedep unix
#endif
#include "config.h"
#include "wine/port.h"
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#include <time.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_SYS_RANDOM_H
# include <sys/random.h>
#endif
#ifdef HAVE_IOKIT_IOKITLIB_H
# include <CoreFoundation/CoreFoundation.h>
# include <IOKit/IOKitLib.h>
# include <IOKit/pwr_mgt/IOPM.h>
# include <IOKit/pwr_mgt/IOPMLib.h>
# include <IOKit/ps/IOPowerSources.h>
#endif
#ifdef __APPLE__
# include <mach/mach.h>
# include <mach/machine.h>
# include <mach/mach_init.h>
# include <mach/mach_host.h>
# include <mach/vm_map.h>
#endif
#define NONAMELESSUNION
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winternl.h"
#include "ddk/wdm.h"
#include "wine/asm.h"
#include "unix_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
#include "pshpack1.h"
struct smbios_prologue
{
BYTE calling_method;
BYTE major_version;
BYTE minor_version;
BYTE revision;
DWORD length;
};
struct smbios_header
{
BYTE type;
BYTE length;
WORD handle;
};
struct smbios_bios
{
struct smbios_header hdr;
BYTE vendor;
BYTE version;
WORD start;
BYTE date;
BYTE size;
UINT64 characteristics;
BYTE characteristics_ext[2];
BYTE system_bios_major_release;
BYTE system_bios_minor_release;
BYTE ec_firmware_major_release;
BYTE ec_firmware_minor_release;
};
struct smbios_system
{
struct smbios_header hdr;
BYTE vendor;
BYTE product;
BYTE version;
BYTE serial;
BYTE uuid[16];
BYTE wake_up_type;
BYTE sku_number;
BYTE family;
};
struct smbios_board
{
struct smbios_header hdr;
BYTE vendor;
BYTE product;
BYTE version;
BYTE serial;
BYTE asset_tag;
BYTE feature_flags;
BYTE location;
WORD chassis_handle;
BYTE board_type;
BYTE num_contained_handles;
};
struct smbios_chassis
{
struct smbios_header hdr;
BYTE vendor;
BYTE type;
BYTE version;
BYTE serial;
BYTE asset_tag;
BYTE boot_state;
BYTE power_supply_state;
BYTE thermal_state;
BYTE security_status;
DWORD oem_defined;
BYTE height;
BYTE num_power_cords;
BYTE num_contained_elements;
BYTE contained_element_rec_length;
};
struct smbios_boot_info
{
struct smbios_header hdr;
BYTE reserved[6];
BYTE boot_status[10];
};
#include "poppack.h"
/* Firmware table providers */
#define ACPI 0x41435049
#define FIRM 0x4649524D
#define RSMB 0x52534D42
static SYSTEM_CPU_INFORMATION cpu_info;
/*******************************************************************************
* Architecture specific feature detection for CPUs
*
* This a set of mutually exclusive #if define()s each providing its own get_cpuinfo() to be called
* from init_cpu_info();
*/
#if defined(__i386__) || defined(__x86_64__)
#define AUTH 0x68747541 /* "Auth" */
#define ENTI 0x69746e65 /* "enti" */
#define CAMD 0x444d4163 /* "cAMD" */
#define GENU 0x756e6547 /* "Genu" */
#define INEI 0x49656e69 /* "ineI" */
#define NTEL 0x6c65746e /* "ntel" */
extern void do_cpuid(unsigned int ax, unsigned int *p);
#ifdef __i386__
__ASM_GLOBAL_FUNC( do_cpuid,
"pushl %esi\n\t"
"pushl %ebx\n\t"
"movl 12(%esp),%eax\n\t"
"movl 16(%esp),%esi\n\t"
"xorl %ecx,%ecx\n\t"
"cpuid\n\t"
"movl %eax,(%esi)\n\t"
"movl %ebx,4(%esi)\n\t"
"movl %ecx,8(%esi)\n\t"
"movl %edx,12(%esi)\n\t"
"popl %ebx\n\t"
"popl %esi\n\t"
"ret" )
#else
__ASM_GLOBAL_FUNC( do_cpuid,
"pushq %rbx\n\t"
"movl %edi,%eax\n\t"
"xorl %ecx,%ecx\n\t"
"cpuid\n\t"
"movl %eax,(%rsi)\n\t"
"movl %ebx,4(%rsi)\n\t"
"movl %ecx,8(%rsi)\n\t"
"movl %edx,12(%rsi)\n\t"
"popq %rbx\n\t"
"ret" )
#endif
#ifdef __i386__
extern int have_cpuid(void);
__ASM_GLOBAL_FUNC( have_cpuid,
"pushfl\n\t"
"pushfl\n\t"
"movl (%esp),%ecx\n\t"
"xorl $0x00200000,(%esp)\n\t"
"popfl\n\t"
"pushfl\n\t"
"popl %eax\n\t"
"popfl\n\t"
"xorl %ecx,%eax\n\t"
"andl $0x00200000,%eax\n\t"
"ret" )
#else
static int have_cpuid(void)
{
return 1;
}
#endif
/* Detect if a SSE2 processor is capable of Denormals Are Zero (DAZ) mode.
*
* This function assumes you have already checked for SSE2/FXSAVE support. */
static inline BOOL have_sse_daz_mode(void)
{
#ifdef __i386__
/* Intel says we need a zeroed 16-byte aligned buffer */
char buffer[512 + 16];
XSAVE_FORMAT *state = (XSAVE_FORMAT *)(((ULONG_PTR)buffer + 15) & ~15);
memset(buffer, 0, sizeof(buffer));
__asm__ __volatile__( "fxsave %0" : "=m" (*state) : "m" (*state) );
return (state->MxCsr_Mask & (1 << 6)) >> 6;
#else /* all x86_64 processors include SSE2 with DAZ mode */
return TRUE;
#endif
}
static void get_cpuinfo( SYSTEM_CPU_INFORMATION *info )
{
unsigned int regs[4], regs2[4], regs3[4];
#if defined(__i386__)
info->Architecture = PROCESSOR_ARCHITECTURE_INTEL;
#elif defined(__x86_64__)
info->Architecture = PROCESSOR_ARCHITECTURE_AMD64;
#endif
/* We're at least a 386 */
info->FeatureSet = CPU_FEATURE_VME | CPU_FEATURE_X86 | CPU_FEATURE_PGE;
info->Level = 3;
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 */
if (regs2[3] & (1 << 3 )) info->FeatureSet |= CPU_FEATURE_PSE;
if (regs2[3] & (1 << 4 )) info->FeatureSet |= CPU_FEATURE_TSC;
if (regs2[3] & (1 << 6 )) info->FeatureSet |= CPU_FEATURE_PAE;
if (regs2[3] & (1 << 8 )) info->FeatureSet |= CPU_FEATURE_CX8;
if (regs2[3] & (1 << 11)) info->FeatureSet |= CPU_FEATURE_SEP;
if (regs2[3] & (1 << 12)) info->FeatureSet |= CPU_FEATURE_MTRR;
if (regs2[3] & (1 << 15)) info->FeatureSet |= CPU_FEATURE_CMOV;
if (regs2[3] & (1 << 16)) info->FeatureSet |= CPU_FEATURE_PAT;
if (regs2[3] & (1 << 23)) info->FeatureSet |= CPU_FEATURE_MMX;
if (regs2[3] & (1 << 24)) info->FeatureSet |= CPU_FEATURE_FXSR;
if (regs2[3] & (1 << 25)) info->FeatureSet |= CPU_FEATURE_SSE;
if (regs2[3] & (1 << 26)) info->FeatureSet |= CPU_FEATURE_SSE2;
if (regs2[2] & (1 << 0 )) info->FeatureSet |= CPU_FEATURE_SSE3;
if (regs2[2] & (1 << 9 )) info->FeatureSet |= CPU_FEATURE_SSSE3;
if (regs2[2] & (1 << 13)) info->FeatureSet |= CPU_FEATURE_CX128;
if (regs2[2] & (1 << 19)) info->FeatureSet |= CPU_FEATURE_SSE41;
if (regs2[2] & (1 << 20)) info->FeatureSet |= CPU_FEATURE_SSE42;
if (regs2[2] & (1 << 27)) info->FeatureSet |= CPU_FEATURE_XSAVE;
if (regs2[2] & (1 << 28)) info->FeatureSet |= CPU_FEATURE_AVX;
if((regs2[3] & (1 << 26)) && (regs2[3] & (1 << 24)) && have_sse_daz_mode()) /* has SSE2 and FXSAVE/FXRSTOR */
info->FeatureSet |= CPU_FEATURE_DAZ;
if (regs[0] >= 0x00000007)
{
do_cpuid( 0x00000007, regs3 ); /* get extended features */
if (regs3[1] & (1 << 5)) info->FeatureSet |= CPU_FEATURE_AVX2;
}
if (regs[1] == AUTH && regs[3] == ENTI && regs[2] == CAMD)
{
info->Level = (regs2[0] >> 8) & 0xf; /* family */
if (info->Level == 0xf) /* AMD says to add the extended family to the family if family is 0xf */
info->Level += (regs2[0] >> 20) & 0xff;
/* repack model and stepping to make a "revision" */
info->Revision = ((regs2[0] >> 16) & 0xf) << 12; /* extended model */
info->Revision |= ((regs2[0] >> 4 ) & 0xf) << 8; /* model */
info->Revision |= regs2[0] & 0xf; /* stepping */
do_cpuid( 0x80000000, regs ); /* get vendor cpuid level */
if (regs[0] >= 0x80000001)
{
do_cpuid( 0x80000001, regs2 ); /* get vendor features */
if (regs2[2] & (1 << 2)) info->FeatureSet |= CPU_FEATURE_VIRT;
if (regs2[3] & (1 << 20)) info->FeatureSet |= CPU_FEATURE_NX;
if (regs2[3] & (1 << 27)) info->FeatureSet |= CPU_FEATURE_TSC;
if (regs2[3] & (1u << 31)) info->FeatureSet |= CPU_FEATURE_3DNOW;
}
}
else if (regs[1] == GENU && regs[3] == INEI && regs[2] == NTEL)
{
info->Level = ((regs2[0] >> 8) & 0xf) + ((regs2[0] >> 20) & 0xff); /* family + extended family */
if(info->Level == 15) info->Level = 6;
/* repack model and stepping to make a "revision" */
info->Revision = ((regs2[0] >> 16) & 0xf) << 12; /* extended model */
info->Revision |= ((regs2[0] >> 4 ) & 0xf) << 8; /* model */
info->Revision |= regs2[0] & 0xf; /* stepping */
if(regs2[2] & (1 << 5)) info->FeatureSet |= CPU_FEATURE_VIRT;
if(regs2[3] & (1 << 21)) info->FeatureSet |= CPU_FEATURE_DS;
do_cpuid( 0x80000000, regs ); /* get vendor cpuid level */
if (regs[0] >= 0x80000001)
{
do_cpuid( 0x80000001, regs2 ); /* get vendor features */
if (regs2[3] & (1 << 20)) info->FeatureSet |= CPU_FEATURE_NX;
if (regs2[3] & (1 << 27)) info->FeatureSet |= CPU_FEATURE_TSC;
}
}
else
{
info->Level = (regs2[0] >> 8) & 0xf; /* family */
/* repack model and stepping to make a "revision" */
info->Revision = ((regs2[0] >> 4 ) & 0xf) << 8; /* model */
info->Revision |= regs2[0] & 0xf; /* stepping */
}
}
}
#elif defined(__arm__)
static inline void get_cpuinfo( SYSTEM_CPU_INFORMATION *info )
{
#ifdef linux
char line[512];
char *s, *value;
FILE *f = fopen("/proc/cpuinfo", "r");
if (f)
{
while (fgets( line, sizeof(line), f ))
{
/* 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 == '\t') value++;
if ((s = strchr( value,'\n' ))) *s = 0;
if (!strcmp( line, "CPU architecture" ))
{
info->Level = atoi(value);
continue;
}
if (!strcmp( line, "CPU revision" ))
{
info->Revision = atoi(value);
continue;
}
if (!strcmp( line, "Features" ))
{
if (strstr(value, "crc32")) info->FeatureSet |= CPU_FEATURE_ARM_V8_CRC32;
if (strstr(value, "aes")) info->FeatureSet |= CPU_FEATURE_ARM_V8_CRYPTO;
continue;
}
}
fclose( f );
}
#elif defined(__FreeBSD__)
size_t valsize;
char buf[8];
int value;
valsize = sizeof(buf);
if (!sysctlbyname("hw.machine_arch", &buf, &valsize, NULL, 0) && sscanf(buf, "armv%i", &value) == 1)
info->Level = value;
valsize = sizeof(value);
if (!sysctlbyname("hw.floatingpoint", &value, &valsize, NULL, 0))
info->FeatureSet |= CPU_FEATURE_ARM_VFP_32;
#else
FIXME("CPU Feature detection not implemented.\n");
#endif
info->Architecture = PROCESSOR_ARCHITECTURE_ARM;
}
#elif defined(__aarch64__)
static void get_cpuinfo( SYSTEM_CPU_INFORMATION *info )
{
#ifdef linux
char line[512];
char *s, *value;
FILE *f = fopen("/proc/cpuinfo", "r");
if (f)
{
while (fgets( line, sizeof(line), f ))
{
/* 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 == '\t') value++;
if ((s = strchr( value,'\n' ))) *s = 0;
if (!strcmp( line, "CPU architecture" ))
{
info->Level = atoi(value);
continue;
}
if (!strcmp( line, "CPU revision" ))
{
info->Revision = atoi(value);
continue;
}
if (!strcmp( line, "Features" ))
{
if (strstr(value, "crc32")) info->FeatureSet |= CPU_FEATURE_ARM_V8_CRC32;
if (strstr(value, "aes")) info->FeatureSet |= CPU_FEATURE_ARM_V8_CRYPTO;
continue;
}
}
fclose( f );
}
#else
FIXME("CPU Feature detection not implemented.\n");
#endif
info->Level = max(info->Level, 8);
info->Architecture = PROCESSOR_ARCHITECTURE_ARM64;
}
#endif /* End architecture specific feature detection for CPUs */
/******************************************************************
* init_cpu_info
*
* inits a couple of places with CPU related information:
* - cpu_info in this file
* - Peb->NumberOfProcessors
* - SharedUserData->ProcessFeatures[] array
*/
void init_cpu_info(void)
{
long num;
#ifdef _SC_NPROCESSORS_ONLN
num = sysconf(_SC_NPROCESSORS_ONLN);
if (num < 1)
{
num = 1;
WARN("Failed to detect the number of processors.\n");
}
#elif defined(CTL_HW) && defined(HW_NCPU)
int mib[2];
size_t len = sizeof(num);
mib[0] = CTL_HW;
mib[1] = HW_NCPU;
if (sysctl(mib, 2, &num, &len, NULL, 0) != 0)
{
num = 1;
WARN("Failed to detect the number of processors.\n");
}
#else
num = 1;
FIXME("Detecting the number of processors is not supported.\n");
#endif
NtCurrentTeb()->Peb->NumberOfProcessors = num;
get_cpuinfo( &cpu_info );
TRACE( "<- CPU arch %d, level %d, rev %d, features 0x%x\n",
cpu_info.Architecture, cpu_info.Level, cpu_info.Revision, cpu_info.FeatureSet );
}
static BOOL grow_logical_proc_buf( SYSTEM_LOGICAL_PROCESSOR_INFORMATION **pdata, DWORD *max_len )
{
SYSTEM_LOGICAL_PROCESSOR_INFORMATION *new_data;
*max_len *= 2;
if (!(new_data = realloc( *pdata, *max_len*sizeof(*new_data) ))) return FALSE;
*pdata = new_data;
return TRUE;
}
static BOOL grow_logical_proc_ex_buf( SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX **pdataex, DWORD *max_len )
{
SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX *new_dataex;
DWORD new_len = *max_len * 2;
if (!(new_dataex = realloc( *pdataex, new_len * sizeof(*new_dataex) ))) return FALSE;
memset( new_dataex + *max_len, 0, (new_len - *max_len) * sizeof(*new_dataex) );
*pdataex = new_dataex;
*max_len = new_len;
return TRUE;
}
static DWORD log_proc_ex_size_plus(DWORD size)
{
/* add SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX.Relationship and .Size */
return sizeof(LOGICAL_PROCESSOR_RELATIONSHIP) + sizeof(DWORD) + size;
}
static DWORD count_bits(ULONG_PTR mask)
{
DWORD count = 0;
while (mask > 0)
{
mask >>= 1;
count++;
}
return count;
}
/* Store package and core information for a logical processor. Parsing of processor
* data may happen in multiple passes; the 'id' parameter is then used to locate
* previously stored data. The type of data stored in 'id' depends on 'rel':
* - RelationProcessorPackage: package id ('CPU socket').
* - RelationProcessorCore: physical core number.
*/
static BOOL logical_proc_info_add_by_id( SYSTEM_LOGICAL_PROCESSOR_INFORMATION **pdata,
SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX **pdataex, DWORD *len,
DWORD *pmax_len, LOGICAL_PROCESSOR_RELATIONSHIP rel,
DWORD id, ULONG_PTR mask )
{
if (pdata)
{
DWORD i;
for (i = 0; i < *len; i++)
{
if (rel == RelationProcessorPackage && (*pdata)[i].Relationship == rel && (*pdata)[i].u.Reserved[1] == id)
{
(*pdata)[i].ProcessorMask |= mask;
return TRUE;
}
else if (rel == RelationProcessorCore && (*pdata)[i].Relationship == rel && (*pdata)[i].u.Reserved[1] == id)
return TRUE;
}
while (*len == *pmax_len)
{
if (!grow_logical_proc_buf(pdata, pmax_len)) return FALSE;
}
(*pdata)[i].Relationship = rel;
(*pdata)[i].ProcessorMask = mask;
if (rel == RelationProcessorCore)
(*pdata)[i].u.ProcessorCore.Flags = count_bits(mask) > 1 ? LTP_PC_SMT : 0;
(*pdata)[i].u.Reserved[0] = 0;
(*pdata)[i].u.Reserved[1] = id;
*len = i+1;
}
else
{
SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX *dataex;
DWORD ofs = 0;
while (ofs < *len)
{
dataex = (SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX *)(((char *)*pdataex) + ofs);
if (rel == RelationProcessorPackage && dataex->Relationship == rel && dataex->u.Processor.Reserved[1] == id)
{
dataex->u.Processor.GroupMask[0].Mask |= mask;
return TRUE;
}
else if (rel == RelationProcessorCore && dataex->Relationship == rel && dataex->u.Processor.Reserved[1] == id)
{
return TRUE;
}
ofs += dataex->Size;
}
/* TODO: For now, just one group. If more than 64 processors, then we
* need another group. */
while (ofs + log_proc_ex_size_plus(sizeof(PROCESSOR_RELATIONSHIP)) > *pmax_len)
{
if (!grow_logical_proc_ex_buf(pdataex, pmax_len)) return FALSE;
}
dataex = (SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX *)(((char *)*pdataex) + ofs);
dataex->Relationship = rel;
dataex->Size = log_proc_ex_size_plus(sizeof(PROCESSOR_RELATIONSHIP));
if (rel == RelationProcessorCore)
dataex->u.Processor.Flags = count_bits(mask) > 1 ? LTP_PC_SMT : 0;
else
dataex->u.Processor.Flags = 0;
dataex->u.Processor.EfficiencyClass = 0;
dataex->u.Processor.GroupCount = 1;
dataex->u.Processor.GroupMask[0].Mask = mask;
dataex->u.Processor.GroupMask[0].Group = 0;
/* mark for future lookup */
dataex->u.Processor.Reserved[0] = 0;
dataex->u.Processor.Reserved[1] = id;
*len += dataex->Size;
}
return TRUE;
}
static BOOL logical_proc_info_add_cache( SYSTEM_LOGICAL_PROCESSOR_INFORMATION **pdata,
SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX **pdataex, DWORD *len,
DWORD *pmax_len, ULONG_PTR mask, CACHE_DESCRIPTOR *cache )
{
if (pdata)
{
DWORD i;
for (i = 0; i < *len; i++)
{
if ((*pdata)[i].Relationship==RelationCache && (*pdata)[i].ProcessorMask==mask
&& (*pdata)[i].u.Cache.Level==cache->Level && (*pdata)[i].u.Cache.Type==cache->Type)
return TRUE;
}
while (*len == *pmax_len)
if (!grow_logical_proc_buf(pdata, pmax_len)) return FALSE;
(*pdata)[i].Relationship = RelationCache;
(*pdata)[i].ProcessorMask = mask;
(*pdata)[i].u.Cache = *cache;
*len = i+1;
}
else
{
SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX *dataex;
DWORD ofs;
for (ofs = 0; ofs < *len; )
{
dataex = (SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX *)(((char *)*pdataex) + ofs);
if (dataex->Relationship == RelationCache && dataex->u.Cache.GroupMask.Mask == mask &&
dataex->u.Cache.Level == cache->Level && dataex->u.Cache.Type == cache->Type)
return TRUE;
ofs += dataex->Size;
}
while (ofs + log_proc_ex_size_plus(sizeof(CACHE_RELATIONSHIP)) > *pmax_len)
{
if (!grow_logical_proc_ex_buf(pdataex, pmax_len)) return FALSE;
}
dataex = (SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX *)(((char *)*pdataex) + ofs);
dataex->Relationship = RelationCache;
dataex->Size = log_proc_ex_size_plus(sizeof(CACHE_RELATIONSHIP));
dataex->u.Cache.Level = cache->Level;
dataex->u.Cache.Associativity = cache->Associativity;
dataex->u.Cache.LineSize = cache->LineSize;
dataex->u.Cache.CacheSize = cache->Size;
dataex->u.Cache.Type = cache->Type;
dataex->u.Cache.GroupMask.Mask = mask;
dataex->u.Cache.GroupMask.Group = 0;
*len += dataex->Size;
}
return TRUE;
}
static BOOL logical_proc_info_add_numa_node( SYSTEM_LOGICAL_PROCESSOR_INFORMATION **pdata,
SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX **pdataex, DWORD *len,
DWORD *pmax_len, ULONG_PTR mask, DWORD node_id )
{
if (pdata)
{
while (*len == *pmax_len)
if (!grow_logical_proc_buf(pdata, pmax_len)) return FALSE;
(*pdata)[*len].Relationship = RelationNumaNode;
(*pdata)[*len].ProcessorMask = mask;
(*pdata)[*len].u.NumaNode.NodeNumber = node_id;
(*len)++;
}
else
{
SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX *dataex;
while (*len + log_proc_ex_size_plus(sizeof(NUMA_NODE_RELATIONSHIP)) > *pmax_len)
{
if (!grow_logical_proc_ex_buf(pdataex, pmax_len)) return FALSE;
}
dataex = (SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX *)(((char *)*pdataex) + *len);
dataex->Relationship = RelationNumaNode;
dataex->Size = log_proc_ex_size_plus(sizeof(NUMA_NODE_RELATIONSHIP));
dataex->u.NumaNode.NodeNumber = node_id;
dataex->u.NumaNode.GroupMask.Mask = mask;
dataex->u.NumaNode.GroupMask.Group = 0;
*len += dataex->Size;
}
return TRUE;
}
static BOOL logical_proc_info_add_group( SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX **pdataex,
DWORD *len, DWORD *pmax_len, DWORD num_cpus, ULONG_PTR mask )
{
SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX *dataex;
while (*len + log_proc_ex_size_plus(sizeof(GROUP_RELATIONSHIP)) > *pmax_len)
if (!grow_logical_proc_ex_buf(pdataex, pmax_len)) return FALSE;
dataex = (SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX *)(((char *)*pdataex) + *len);
dataex->Relationship = RelationGroup;
dataex->Size = log_proc_ex_size_plus(sizeof(GROUP_RELATIONSHIP));
dataex->u.Group.MaximumGroupCount = 1;
dataex->u.Group.ActiveGroupCount = 1;
dataex->u.Group.GroupInfo[0].MaximumProcessorCount = num_cpus;
dataex->u.Group.GroupInfo[0].ActiveProcessorCount = num_cpus;
dataex->u.Group.GroupInfo[0].ActiveProcessorMask = mask;
*len += dataex->Size;
return TRUE;
}
#ifdef linux
/* Helper function for counting bitmap values as commonly used by the Linux kernel
* for storing CPU masks in sysfs. The format is comma separated lists of hex values
* each max 32-bit e.g. "00ff" or even "00,00000000,0000ffff".
*
* Example files include:
* - /sys/devices/system/cpu/cpu0/cache/index0/shared_cpu_map
* - /sys/devices/system/cpu/cpu0/topology/thread_siblings
*/
static BOOL sysfs_parse_bitmap(const char *filename, ULONG_PTR *mask)
{
FILE *f;
DWORD r;
f = fopen(filename, "r");
if (!f) return FALSE;
while (!feof(f))
{
char op;
if (!fscanf(f, "%x%c ", &r, &op)) break;
*mask = (sizeof(ULONG_PTR)>sizeof(int) ? *mask << (8 * sizeof(DWORD)) : 0) + r;
}
fclose( f );
return TRUE;
}
/* Helper function for counting number of elements in interval lists as used by
* the Linux kernel. The format is comma separated list of intervals of which
* each interval has the format of "begin-end" where begin and end are decimal
* numbers. E.g. "0-7", "0-7,16-23"
*
* Example files include:
* - /sys/devices/system/cpu/online
* - /sys/devices/system/cpu/cpu0/cache/index0/shared_cpu_list
* - /sys/devices/system/cpu/cpu0/topology/thread_siblings_list.
*/
static BOOL sysfs_count_list_elements(const char *filename, DWORD *result)
{
FILE *f;
f = fopen(filename, "r");
if (!f) return FALSE;
while (!feof(f))
{
char op;
DWORD beg, end;
if (!fscanf(f, "%u%c ", &beg, &op)) break;
if(op == '-')
fscanf(f, "%u%c ", &end, &op);
else
end = beg;
*result += end - beg + 1;
}
fclose( f );
return TRUE;
}
/* for 'data', max_len is the array count. for 'dataex', max_len is in bytes */
static NTSTATUS create_logical_proc_info( SYSTEM_LOGICAL_PROCESSOR_INFORMATION **data,
SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX **dataex,
DWORD *max_len, DWORD relation )
{
static const char core_info[] = "/sys/devices/system/cpu/cpu%u/topology/%s";
static const char cache_info[] = "/sys/devices/system/cpu/cpu%u/cache/index%u/%s";
static const char numa_info[] = "/sys/devices/system/node/node%u/cpumap";
FILE *fcpu_list, *fnuma_list, *f;
DWORD len = 0, beg, end, i, j, r, num_cpus = 0, max_cpus = 0;
char op, name[MAX_PATH];
ULONG_PTR all_cpus_mask = 0;
/* On systems with a large number of CPU cores (32 or 64 depending on 32-bit or 64-bit),
* we have issues parsing processor information:
* - ULONG_PTR masks as used in data structures can't hold all cores. Requires splitting
* data appropriately into "processor groups". We are hard coding 1.
* - Thread affinity code in wineserver and our CPU parsing code here work independently.
* So far the Windows mask applied directly to Linux, but process groups break that.
* (NUMA systems you may have multiple non-full groups.)
*/
if(sysfs_count_list_elements("/sys/devices/system/cpu/present", &max_cpus) && max_cpus > MAXIMUM_PROCESSORS)
{
FIXME("Improve CPU info reporting: system supports %u logical cores, but only %u supported!\n",
max_cpus, MAXIMUM_PROCESSORS);
}
fcpu_list = fopen("/sys/devices/system/cpu/online", "r");
if (!fcpu_list) return STATUS_NOT_IMPLEMENTED;
while (!feof(fcpu_list))
{
if (!fscanf(fcpu_list, "%u%c ", &beg, &op)) break;
if (op == '-') fscanf(fcpu_list, "%u%c ", &end, &op);
else end = beg;
for(i = beg; i <= end; i++)
{
DWORD phys_core = 0;
ULONG_PTR thread_mask = 0;
if (i > 8*sizeof(ULONG_PTR))
{
FIXME("skipping logical processor %d\n", i);
continue;
}
if (relation == RelationAll || relation == RelationProcessorPackage)
{
sprintf(name, core_info, i, "physical_package_id");
f = fopen(name, "r");
if (f)
{
fscanf(f, "%u", &r);
fclose(f);
}
else r = 0;
if (!logical_proc_info_add_by_id(data, dataex, &len, max_len, RelationProcessorPackage, r, (ULONG_PTR)1 << i))
{
fclose(fcpu_list);
return STATUS_NO_MEMORY;
}
}
/* Sysfs enumerates logical cores (and not physical cores), but Windows enumerates
* by physical core. Upon enumerating a logical core in sysfs, we register a physical
* core and all its logical cores. In order to not report physical cores multiple
* times, we pass a unique physical core ID to logical_proc_info_add_by_id and let
* that call figure out any duplication.
* Obtain a unique physical core ID from the first element of thread_siblings_list.
* This list provides logical cores sharing the same physical core. The IDs are based
* on kernel cpu core numbering as opposed to a hardware core ID like provided through
* 'core_id', so are suitable as a unique ID.
*/
if(relation == RelationAll || relation == RelationProcessorCore ||
relation == RelationNumaNode || relation == RelationGroup)
{
/* Mask of logical threads sharing same physical core in kernel core numbering. */
sprintf(name, core_info, i, "thread_siblings");
if(!sysfs_parse_bitmap(name, &thread_mask)) thread_mask = 1<<i;
/* Needed later for NumaNode and Group. */
all_cpus_mask |= thread_mask;
if (relation == RelationAll || relation == RelationProcessorCore)
{
sprintf(name, core_info, i, "thread_siblings_list");
f = fopen(name, "r");
if (f)
{
fscanf(f, "%d%c", &phys_core, &op);
fclose(f);
}
else phys_core = i;
if (!logical_proc_info_add_by_id(data, dataex, &len, max_len, RelationProcessorCore, phys_core, thread_mask))
{
fclose(fcpu_list);
return STATUS_NO_MEMORY;
}
}
}
if (relation == RelationAll || relation == RelationCache)
{
for(j = 0; j < 4; j++)
{
CACHE_DESCRIPTOR cache;
ULONG_PTR mask = 0;
sprintf(name, cache_info, i, j, "shared_cpu_map");
if(!sysfs_parse_bitmap(name, &mask)) continue;
sprintf(name, cache_info, i, j, "level");
f = fopen(name, "r");
if(!f) continue;
fscanf(f, "%u", &r);
fclose(f);
cache.Level = r;
sprintf(name, cache_info, i, j, "ways_of_associativity");
f = fopen(name, "r");
if(!f) continue;
fscanf(f, "%u", &r);
fclose(f);
cache.Associativity = r;
sprintf(name, cache_info, i, j, "coherency_line_size");
f = fopen(name, "r");
if(!f) continue;
fscanf(f, "%u", &r);
fclose(f);
cache.LineSize = r;
sprintf(name, cache_info, i, j, "size");
f = fopen(name, "r");
if(!f) continue;
fscanf(f, "%u%c", &r, &op);
fclose(f);
if(op != 'K')
WARN("unknown cache size %u%c\n", r, op);
cache.Size = (op=='K' ? r*1024 : r);
sprintf(name, cache_info, i, j, "type");
f = fopen(name, "r");
if(!f) continue;
fscanf(f, "%s", name);
fclose(f);
if (!memcmp(name, "Data", 5))
cache.Type = CacheData;
else if(!memcmp(name, "Instruction", 11))
cache.Type = CacheInstruction;
else
cache.Type = CacheUnified;
if (!logical_proc_info_add_cache(data, dataex, &len, max_len, mask, &cache))
{
fclose(fcpu_list);
return STATUS_NO_MEMORY;
}
}
}
}
}
fclose(fcpu_list);
num_cpus = count_bits(all_cpus_mask);
if(relation == RelationAll || relation == RelationNumaNode)
{
fnuma_list = fopen("/sys/devices/system/node/online", "r");
if (!fnuma_list)
{
if (!logical_proc_info_add_numa_node(data, dataex, &len, max_len, all_cpus_mask, 0))
return STATUS_NO_MEMORY;
}
else
{
while (!feof(fnuma_list))
{
if (!fscanf(fnuma_list, "%u%c ", &beg, &op))
break;
if (op == '-') fscanf(fnuma_list, "%u%c ", &end, &op);