arch/arm-all/kernel/cpu_init.c

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