rom/kernel/freepages.c

   1 /*
   2     Copyright © 1995-2013, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc:
   6 */
   7
   8 #include <aros/config.h>
   9
  10 #include <kernel_base.h>
  11 #include <kernel_mm.h>
  12
  13 /*****************************************************************************
  14
  15     NAME */
  16 #include <proto/kernel.h>
  17
  18         AROS_LH2(void, KrnFreePages,
  19
  20 /*  SYNOPSIS */
  21         AROS_LHA(void *, addr, A0),
  22         AROS_LHA(uintptr_t, length, D0),
  23
  24 /*  LOCATION */
  25         struct KernelBase *, KernelBase, 28, Kernel)
  26
  27 /*  FUNCTION
  28
  29     INPUTS
  30
  31     RESULT
  32
  33     NOTES
  34         This function works only on systems with MMU support.
  35
  36     EXAMPLE
  37
  38     BUGS
  39
  40     SEE ALSO
  41
  42     INTERNALS
  43
  44 ******************************************************************************/
  45 {
  46     AROS_LIBFUNC_INIT
  47
  48 #if USE_MMU
  49     /* Drop access rights */
  50     KrnSetProtection(addr, length, 0);
  51     /* Actually free pages */
  52     mm_FreePages(addr, length, KernelBase);
  53 #endif
  54
  55     AROS_LIBFUNC_EXIT
  56 }