arch/arm-all/kernel/cpu_init.c

   1 /*
   2     Copyright © 1995-2014, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <aros/symbolsets.h>
   7 #include <exec/types.h>
   8
   9 #include "kernel_base.h"
  10
  11 /*
  12  * The job of this function is to probe the CPU and set up kb_ContextFlags
  13  * and kb_ContextSize.
  14  * kb_ContextFlags is whatever needs to be passed to KrnCreateContext() in
  15  * order to create a right thing. kb_ContextSize is total length of our
  16  * context area (including FPU data and private data). It is needed for
  17  * complete context save/restore during Exec exceptions processing
  18  */
  19 static int cpu_Init(struct KernelBase *KernelBase)
  20 {
  21     /*
  22      * On ARM the different thing is FPU type.
  23      * TODO: in future this can be extended to support more than
  24      * a single FPU type.
  25      */
  26     KernelBase->kb_ContextFlags = ARM_FPU_TYPE;
  27     KernelBase->kb_ContextSize  = sizeof(struct AROSCPUContext) + ARM_FPU_SIZE;
  28
  29     return TRUE;
  30 }
  31
  32 ADD2INITLIB(cpu_Init, 5);