arch/all-pc/kernel/freecpumask.c

   1 /*
   2     Copyright © 2017, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc:
   6 */
   7
   8 #include <proto/exec.h>
   9
  10 #include <aros/kernel.h>
  11 #include <aros/libcall.h>
  12
  13 #include "kernel_base.h"
  14 #include "kernel_intern.h"
  15
  16 AROS_LH1(void, KrnFreeCPUMask,
  17         AROS_LHA(void *, mask, A0),
  18         struct KernelBase *, KernelBase, 43, Kernel)
  19 {
  20     AROS_LIBFUNC_INIT
  21
  22     struct PlatformData *pdata = KernelBase->kb_PlatformData;
  23     struct APICData *apicData;
  24     int count;
  25
  26     if ((IPTR)mask == TASKAFFINITY_ANY)
  27         return;
  28
  29     if ((pdata) && (pdata->kb_APIC))
  30     {
  31         apicData  = pdata->kb_APIC;
  32
  33         count = apicData->apic_count / 32;
  34
  35         if ((count * 32) < apicData->apic_count)
  36             count += 1;
  37
  38         FreeMem(mask, count * sizeof(ULONG));
  39     }
  40
  41     return;
  42
  43     AROS_LIBFUNC_EXIT
  44 }