arch/arm-native/exec/platform_init.c

   1 /*
   2     Copyright © 2013, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #define DEBUG 1
   7
   8 #include <aros/debug.h>
   9 #include <aros/cpu.h>
  10 #include <aros/kernel.h>
  11 #include <aros/symbolsets.h>
  12 #include <exec/memory.h>
  13 #include <exec/tasks.h>
  14 #include <exec/alerts.h>
  15 #include <exec/execbase.h>
  16 #include <asm/io.h>
  17 #include <proto/exec.h>
  18 #include <proto/kernel.h>
  19 #include <strings.h>
  20
  21 #include "exec_intern.h"
  22
  23 /* Linked from kernel.resource,
  24  * need to retrieve in a cleaner fashion .. */
  25 extern IPTR stack[];
  26
  27 extern void IdleTask(struct ExecBase *);
  28
  29 int Exec_ARMCPUInit(struct ExecBase *SysBase)
  30 {
  31     struct Task *BootTask, *CPUIdleTask;
  32     int cpunum = KrnGetCPUNumber();
  33
  34     D(bug("[Exec] Exec_ARMCPUInit(%02d)\n", cpunum));
  35
  36     BootTask = GET_THIS_TASK;
  37
  38     D(bug("[Exec] Exec_ARMCPUInit[%02d]: %s @ 0x%p\n", cpunum, BootTask->tc_Node.ln_Name, BootTask));
  39
  40     if (cpunum == 0)
  41     {
  42         /* for our sanity we will tell exec about the correct stack for the boot task */
  43         BootTask->tc_SPLower = stack;
  44         BootTask->tc_SPUpper = stack + AROS_STACKSIZE;
  45     }
  46
  47     CPUIdleTask = NewCreateTask(TASKTAG_NAME       , "System Idle",
  48 #if defined(__AROSEXEC_SMP__)
  49                                 TASKTAG_AFFINITY   , KrnGetCPUMask(cpunum),
  50 #endif
  51                                 TASKTAG_PRI        , -127,
  52                                 TASKTAG_PC         , IdleTask,
  53                                 TASKTAG_ARG1       , SysBase,
  54                                 TAG_DONE);
  55
  56     if (CPUIdleTask)
  57     {
  58         CPUIdleTask->tc_State      = TS_WAIT;
  59         TLS_SET(IdleTask, CPUIdleTask);
  60         D(bug("[Exec] Exec_ARMCPUInit[%02d]: %s Task @ 0x%p\n", cpunum, CPUIdleTask->tc_Node.ln_Name, CPUIdleTask));
  61     }
  62
  63     return TRUE;
  64 }
  65
  66 ADD2INITLIB(Exec_ARMCPUInit, 0)