hal/halx86/mp/processor_mp.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS kernel
   5  * FILE:            hal/halx86/mp/processor_mp.c
   6  * PURPOSE:         Intel MultiProcessor specification support
   7  * PROGRAMMER:      David Welch (welch@cwcom.net)
   8  *                  Casper S. Hornstrup (chorns@users.sourceforge.net)
   9  * NOTES:           Parts adapted from linux SMP code
  10  * UPDATE HISTORY:
  11  *     22/05/1998  DW   Created
  12  *     12/04/2001  CSH  Added MultiProcessor specification support
  13  */
  14
  15 /* INCLUDES *****************************************************************/
  16
  17 #include <hal.h>
  18 #define NDEBUG
  19 #include <debug.h>
  20
  21 KAFFINITY HalpActiveProcessors, HalpDefaultInterruptAffinity;
  22
  23 /* PRIVATE FUNCTIONS *********************************************************/
  24
  25 VOID
  26 NTAPI
  27 HaliHaltSystem(VOID)
  28 {
  29     /* Disable interrupts and halt the CPU */
  30     _disable();
  31     __halt();
  32 }
  33
  34 /* FUNCTIONS *****************************************************************/
  35
  36 VOID NTAPI
  37 HalInitializeProcessor(ULONG ProcessorNumber,
  38                        PLOADER_PARAMETER_BLOCK LoaderBlock)
  39 {
  40    ULONG CPU;
  41
  42    DPRINT("HalInitializeProcessor(%x %x)\n", ProcessorNumber, LoaderBlock);
  43
  44    CPU = ThisCPU();
  45    if (OnlineCPUs & (1 << CPU))
  46    {
  47       ASSERT(FALSE);
  48    }
  49
  50    if (ProcessorNumber == 0)
  51    {
  52       HaliInitBSP();
  53    }
  54    else
  55    {
  56       APICSetup();
  57
  58       DPRINT("CPU %d says it is now booted.\n", CPU);
  59
  60       APICCalibrateTimer(CPU);
  61    }
  62
  63    /* This processor is now booted */
  64    CPUMap[CPU].Flags |= CPU_ENABLED;
  65    OnlineCPUs |= (1 << CPU);
  66
  67    /* Setup busy waiting */
  68    //HalpCalibrateStallExecution();
  69 }
  70
  71 BOOLEAN NTAPI
  72 HalAllProcessorsStarted (VOID)
  73 {
  74     ULONG CPUs = 0, i;
  75
  76     DPRINT("HalAllProcessorsStarted()\n");
  77     for (i = 0; i < 32; i++)
  78     {
  79        if (OnlineCPUs & (1 << i))
  80        {
  81           CPUs++;
  82        }
  83     }
  84     if (CPUs > CPUCount)
  85     {
  86        ASSERT(FALSE);
  87     }
  88     else if (CPUs == CPUCount)
  89     {
  90
  91        IOAPICEnable();
  92        IOAPICSetupIds();
  93        if (CPUCount > 1)
  94        {
  95           APICSyncArbIDs();
  96        }
  97        IOAPICSetupIrqs();
  98
  99        return TRUE;
 100     }
 101     return FALSE;
 102 }
 103
 104 BOOLEAN
 105 NTAPI
 106 HalStartNextProcessor(
 107     IN struct _LOADER_PARAMETER_BLOCK *LoaderBlock,
 108     IN PKPROCESSOR_STATE ProcessorState)
 109 {
 110    ULONG CPU;
 111
 112    DPRINT("HalStartNextProcessor(%x %x)\n", LoaderBlock, ProcessorState);
 113
 114    for (CPU = 0; CPU < CPUCount; CPU++)
 115    {
 116       if (!(OnlineCPUs & (1<<CPU)))
 117       {
 118          break;
 119       }
 120    }
 121
 122    if (CPU >= CPUCount)
 123    {
 124       ASSERT(FALSE);
 125    }
 126
 127    DPRINT1("Attempting to boot CPU %d\n", CPU);
 128
 129    HaliStartApplicationProcessor(CPU, (ULONG)ProcessorState);
 130
 131    return TRUE;
 132 }
 133
 134 VOID
 135 NTAPI
 136 HalProcessorIdle(VOID)
 137 {
 138     UNIMPLEMENTED;
 139 }
 140
 141 /* EOF */