arch/x86_64-pc/kernel/platform_init.c

   1 /*
   2     Copyright © 1995-2014, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #define __KERNEL_NOLIBBASE__
   7
   8 #include <aros/multiboot.h>
   9 #include <aros/symbolsets.h>
  10 #include <asm/cpu.h>
  11 #include <asm/io.h>
  12 #include <exec/lists.h>
  13 #include <proto/exec.h>
  14
  15 #include <inttypes.h>
  16
  17 #include "kernel_base.h"
  18 #include "kernel_debug.h"
  19 #include "kernel_intern.h"
  20 #include "apic.h"
  21 #include "smp.h"
  22 #include "xtpic.h"
  23
  24 #define D(x) x
  25 #define DAPIC(x)
  26
  27 /* Post exec init */
  28
  29 static int Platform_Init(struct KernelBase *LIBBASE)
  30 {
  31     struct PlatformData *pdata;
  32     int i;
  33
  34     D(bug("[Kernel] Kernel_Init: Post-exec init. KernelBase @ %p\n", LIBBASE));
  35
  36     for (i = 0; i < IRQ_COUNT; i++)
  37     {
  38         switch(i)
  39         {
  40             case 0x00 ... 0x0f:
  41                 LIBBASE->kb_Interrupts[i].lh_Type = KBL_XTPIC;
  42                 break;
  43             case 0xde:
  44                 LIBBASE->kb_Interrupts[i].lh_Type = KBL_APIC;
  45                 break;
  46             default:
  47                 LIBBASE->kb_Interrupts[i].lh_Type = KBL_INTERNAL;
  48                 break;
  49         }
  50     }
  51
  52     D(bug("[Kernel] Kernel_Init: Interupt List initialised\n"));
  53
  54     pdata = AllocMem(sizeof(struct PlatformData), MEMF_PUBLIC|MEMF_CLEAR);
  55     if (!pdata)
  56         return FALSE;
  57
  58     LIBBASE->kb_PlatformData = pdata;
  59
  60     return TRUE;
  61 }
  62
  63 ADD2INITLIB(Platform_Init, 10)
  64
  65 void PlatformPostInit(void)
  66 {
  67     struct PlatformData *pdata = KernelBase->kb_PlatformData;
  68
  69 #if (1)
  70     ACPICABase = OpenLibrary("acpica.library", 0);
  71
  72     if (ACPICABase)
  73         pdata->kb_APIC = acpi_APIC_Init();
  74 #else
  75     acpi_Initialize();
  76 #endif
  77
  78 #if (0)
  79     if (!pdata->kb_APIC)
  80     {
  81         /* No APIC was discovered by ACPI/whatever else. Do the probe. */
  82         pdata->kb_APIC = core_APIC_Probe();
  83     }
  84
  85     if ((!pdata->kb_APIC) || (pdata->kb_APIC->flags & APF_8259))
  86     {
  87         /* Initialize our XT-PIC */
  88         XTPIC_Init(&pdata->xtpic_mask);
  89     }
  90 #else
  91     // Now initialize our interrupt controller (XT-PIC or APIC)
  92     ictl_Initialize();
  93 #endif
  94
  95 #if (0)
  96     if (pdata->kb_APIC && (pdata->kb_APIC->count > 1))
  97     {
  98         if (smp_Setup())
  99         {
 100             smp_Wake();
 101         }
 102         else
 103         {
 104             D(bug("[Kernel] Failed to prepare the environment!\n"));
 105
 106             pdata->kb_APIC->count = 1;  /* We have only one workinng CPU */
 107         }
 108     }
 109 #else
 110     // The last thing to do is to start up secondary CPU cores (if any)
 111     smp_Initialize();
 112 #endif
 113 }