dlls/kernel32/cpu.c

   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 #include <stdarg.h>
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #ifdef HAVE_SYS_TIME_H
  29 # include <sys/time.h>
  30 #endif
  31
  32
  33 #define NONAMELESSUNION
  34 #define NONAMELESSSTRUCT
  35 #include "ntstatus.h"
  36 #define WIN32_NO_STATUS
  37 #include "windef.h"
  38 #include "winbase.h"
  39 #include "winnt.h"
  40 #include "winternl.h"
  41 #include "psapi.h"
  42 #include "ddk/wdm.h"
  43 #include "wine/unicode.h"
  44 #include "kernel_private.h"
  45 #include "wine/debug.h"
  46
  47 WINE_DEFAULT_DEBUG_CHANNEL(reg);
  48
  49 #define SHARED_DATA     ((KSHARED_USER_DATA*)0x7ffe0000)
  50
  51 /****************************************************************************
  52  *              QueryPerformanceCounter (KERNEL32.@)
  53  *
  54  * Get the current value of the performance counter.
  55  *
  56  * PARAMS
  57  *  counter [O] Destination for the current counter reading
  58  *
  59  * RETURNS
  60  *  Success: TRUE. counter contains the current reading
  61  *  Failure: FALSE.
  62  *
  63  * SEE ALSO
  64  *  See QueryPerformanceFrequency.
  65  */
  66 BOOL WINAPI QueryPerformanceCounter(PLARGE_INTEGER counter)
  67 {
  68     NtQueryPerformanceCounter( counter, NULL );
  69     return TRUE;
  70 }
  71
  72
  73 /****************************************************************************
  74  *              QueryPerformanceFrequency (KERNEL32.@)
  75  *
  76  * Get the resolution of the performance counter.
  77  *
  78  * PARAMS
  79  *  frequency [O] Destination for the counter resolution
  80  *
  81  * RETURNS
  82  *  Success. TRUE. Frequency contains the resolution of the counter.
  83  *  Failure: FALSE.
  84  *
  85  * SEE ALSO
  86  *  See QueryPerformanceCounter.
  87  */
  88 BOOL WINAPI QueryPerformanceFrequency(PLARGE_INTEGER frequency)
  89 {
  90     LARGE_INTEGER counter;
  91     NtQueryPerformanceCounter( &counter, frequency );
  92     return TRUE;
  93 }
  94
  95
  96 /***********************************************************************
  97  *                      GetSystemInfo                   [KERNEL32.@]
  98  *
  99  * Get information about the system.
 100  *
 101  * RETURNS
 102  *  Nothing.
 103  */
 104 VOID WINAPI GetSystemInfo(
 105         LPSYSTEM_INFO si        /* [out] Destination for system information, may not be NULL */)
 106 {
 107     NTSTATUS                 nts;
 108     SYSTEM_CPU_INFORMATION   sci;
 109
 110     TRACE("si=0x%p\n", si);
 111
 112     if ((nts = NtQuerySystemInformation( SystemCpuInformation, &sci, sizeof(sci), NULL )) != STATUS_SUCCESS)
 113     {
 114         SetLastError(RtlNtStatusToDosError(nts));
 115         return;
 116     }
 117
 118     si->u.s.wProcessorArchitecture  = sci.Architecture;
 119     si->u.s.wReserved               = 0;
 120     si->dwPageSize                  = system_info.PageSize;
 121     si->lpMinimumApplicationAddress = system_info.LowestUserAddress;
 122     si->lpMaximumApplicationAddress = system_info.HighestUserAddress;
 123     si->dwActiveProcessorMask       = system_info.ActiveProcessorsAffinityMask;
 124     si->dwNumberOfProcessors        = system_info.NumberOfProcessors;
 125
 126     switch (sci.Architecture)
 127     {
 128     case PROCESSOR_ARCHITECTURE_INTEL:
 129         switch (sci.Level)
 130         {
 131         case 3:  si->dwProcessorType = PROCESSOR_INTEL_386;     break;
 132         case 4:  si->dwProcessorType = PROCESSOR_INTEL_486;     break;
 133         case 5:
 134         case 6:  si->dwProcessorType = PROCESSOR_INTEL_PENTIUM; break;
 135         default: si->dwProcessorType = PROCESSOR_INTEL_PENTIUM; break;
 136         }
 137         break;
 138     case PROCESSOR_ARCHITECTURE_PPC:
 139         switch (sci.Level)
 140         {
 141         case 1:  si->dwProcessorType = PROCESSOR_PPC_601;       break;
 142         case 3:
 143         case 6:  si->dwProcessorType = PROCESSOR_PPC_603;       break;
 144         case 4:  si->dwProcessorType = PROCESSOR_PPC_604;       break;
 145         case 9:  si->dwProcessorType = PROCESSOR_PPC_604;       break;
 146         case 20: si->dwProcessorType = PROCESSOR_PPC_620;       break;
 147         default: si->dwProcessorType = 0;
 148         }
 149         break;
 150     case PROCESSOR_ARCHITECTURE_AMD64:
 151         si->dwProcessorType = PROCESSOR_AMD_X8664;
 152         break;
 153     case PROCESSOR_ARCHITECTURE_ARM:
 154         switch (sci.Level)
 155         {
 156         case 4:  si->dwProcessorType = PROCESSOR_ARM_7TDMI;     break;
 157         default: si->dwProcessorType = PROCESSOR_ARM920;
 158         }
 159         break;
 160     default:
 161         FIXME("Unknown processor architecture %x\n", sci.Architecture);
 162         si->dwProcessorType = 0;
 163     }
 164     si->dwAllocationGranularity     = system_info.AllocationGranularity;
 165     si->wProcessorLevel             = sci.Level;
 166     si->wProcessorRevision          = sci.Revision;
 167 }
 168
 169
 170 /***********************************************************************
 171  *                      GetNativeSystemInfo             [KERNEL32.@]
 172  */
 173 VOID WINAPI GetNativeSystemInfo(
 174     LPSYSTEM_INFO si    /* [out] Destination for system information, may not be NULL */)
 175 {
 176     BOOL is_wow64;
 177
 178     GetSystemInfo(si);
 179
 180     IsWow64Process(GetCurrentProcess(), &is_wow64);
 181     if (is_wow64)
 182     {
 183         if (si->u.s.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_INTEL)
 184         {
 185             si->u.s.wProcessorArchitecture = PROCESSOR_ARCHITECTURE_AMD64;
 186             si->dwProcessorType = PROCESSOR_AMD_X8664;
 187         }
 188         else
 189         {
 190             FIXME("Add the proper information for %d in wow64 mode\n",
 191                   si->u.s.wProcessorArchitecture);
 192         }
 193     }
 194 }
 195
 196 /***********************************************************************
 197  *                      IsProcessorFeaturePresent       [KERNEL32.@]
 198  *
 199  * Determine if the cpu supports a given feature.
 200  *
 201  * RETURNS
 202  *  TRUE, If the processor supports feature,
 203  *  FALSE otherwise.
 204  */
 205 BOOL WINAPI IsProcessorFeaturePresent (
 206         DWORD feature   /* [in] Feature number, (PF_ constants from "winnt.h") */)
 207 {
 208   if (feature < PROCESSOR_FEATURE_MAX)
 209     return SHARED_DATA->ProcessorFeatures[feature];
 210   else
 211     return FALSE;
 212 }
 213
 214 /***********************************************************************
 215  *           K32GetPerformanceInfo (KERNEL32.@)
 216  */
 217 BOOL WINAPI K32GetPerformanceInfo(PPERFORMANCE_INFORMATION info, DWORD size)
 218 {
 219     NTSTATUS status;
 220
 221     TRACE( "(%p, %d)\n", info, size );
 222
 223     status = NtQuerySystemInformation( SystemPerformanceInformation, info, size, NULL );
 224
 225     if (status)
 226     {
 227         SetLastError( RtlNtStatusToDosError( status ) );
 228         return FALSE;
 229     }
 230     return TRUE;
 231 }