arch/m68k-all/processor/getcpuinfo.c

   1 /*
   2     Copyright © 2011-2013, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: GetCPUInfo() - Provides information about installed CPUs
   6     Lang: english
   7 */
   8
   9 #define DEBUG 0
  10
  11 #include <aros/debug.h>
  12 #include <aros/libcall.h>
  13 #include <resources/processor.h>
  14 #include <proto/utility.h>
  15
  16 #include "processor_intern.h"
  17 #include "processor_arch_intern.h"
  18
  19 #include <proto/processor.h>
  20
  21 /* See rom/processor/getcpuinfo.c for documentation */
  22
  23 AROS_LH1(void, GetCPUInfo,
  24     AROS_LHA(struct TagItem *, tagList, A0),
  25     struct ProcessorBase *, ProcessorBase, 1, Processor)
  26 {
  27     AROS_LIBFUNC_INIT
  28
  29     struct TagItem * passedTag = NULL;
  30     struct M68KProcessorInformation * processor = NULL;
  31     struct SystemProcessors * sysprocs = (struct SystemProcessors *)ProcessorBase->Private1;
  32     struct Library *UtilityBase = TaggedOpenLibrary(TAGGEDOPEN_UTILITY);
  33
  34     if (!UtilityBase)
  35         return;
  36
  37     /* GCIT_SelectedProcessor is ignored for now. In future it might be used to
  38        distinguish between M68K processor and PowerPC turbo card processor (?)*/
  39     processor = &sysprocs->processor;
  40
  41     while ((passedTag = NextTagItem(&tagList)) != NULL)
  42     {
  43         if ((passedTag->ti_Tag > GCIT_FeaturesBase) &&
  44             (passedTag->ti_Tag <= GCIT_FeaturesLast))
  45         {
  46             switch(passedTag->ti_Tag)
  47             {
  48             case(GCIT_SupportsFPU):
  49                 *((BOOL *)passedTag->ti_Data) = (BOOL)(
  50                     (processor->FPUModel == FPUMODEL_68881) ||
  51                     (processor->FPUModel == FPUMODEL_68882) ||
  52                     (processor->FPUModel == FPUMODEL_INTERNAL));
  53                 break;
  54             default:
  55                 *((BOOL *)passedTag->ti_Data) = FALSE; break;
  56             }
  57         }
  58         else
  59         {
  60         switch(passedTag->ti_Tag)
  61         {
  62         case(GCIT_NumberOfProcessors):
  63             *((ULONG *)passedTag->ti_Data) = 1;
  64             break;
  65         case(GCIT_ModelString):
  66             *((CONST_STRPTR *)passedTag->ti_Data) = processor->ModelString;
  67             break;
  68         case(GCIT_Family):
  69             *((ULONG *)passedTag->ti_Data) = CPUFAMILY_MOTOROLA_68000;
  70             break;
  71         case(GCIT_VectorUnit):
  72             *((ULONG *)passedTag->ti_Data) = VECTORTYPE_NONE;
  73             break;
  74         case(GCIT_L1CacheSize):
  75             *((ULONG *)passedTag->ti_Data) =
  76                 (processor->L1DataCacheSize + processor->L1InstructionCacheSize);
  77             break;
  78         case(GCIT_L1DataCacheSize):
  79             *((ULONG *)passedTag->ti_Data) = processor->L1DataCacheSize;
  80             break;
  81         case(GCIT_L1InstructionCacheSize):
  82             *((ULONG *)passedTag->ti_Data) = processor->L1InstructionCacheSize;
  83             break;
  84         case(GCIT_L2CacheSize):
  85             *((ULONG *)passedTag->ti_Data) = 0;
  86             break;
  87         case(GCIT_L3CacheSize):
  88             *((ULONG *)passedTag->ti_Data) = 0;
  89             break;
  90         case(GCIT_CacheLineSize):
  91             *((ULONG *)passedTag->ti_Data) = 0;
  92             break;
  93         case(GCIT_Architecture):
  94             *((ULONG *)passedTag->ti_Data) = PROCESSORARCH_M68K;
  95             break;
  96         case(GCIT_Endianness):
  97             *((ULONG *)passedTag->ti_Data) = ENDIANNESS_BE;
  98             break;
  99         case(GCIT_ProcessorSpeed):
 100             *((UQUAD *)passedTag->ti_Data) = processor->CPUFrequency;
 101             break;
 102         case(GCIT_ProcessorLoad):
 103             *((UBYTE *)passedTag->ti_Data) = 0; /* TODO: IMPLEMENT */
 104             break;
 105         case(GCIT_FrontsideSpeed):
 106             *((UQUAD *)passedTag->ti_Data) = 0;
 107             break;
 108         }
 109         }
 110     }
 111
 112     CloseLibrary(UtilityBase);
 113
 114     AROS_LIBFUNC_EXIT
 115 } /* GetCPUInfo() */
 116