arch/m68k-all/kernel/mapglobal.c

   1 /*
   2     Copyright © 1995-2014, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <aros/kernel.h>
   7 #include <aros/libcall.h>
   8
   9 #include <kernel_base.h>
  10 #include <kernel_intern.h>
  11
  12 #include <proto/kernel.h>
  13
  14 /* See rom/kernel/mapglobal.c for documentation */
  15
  16 AROS_LH4(int, KrnMapGlobal,
  17     AROS_LHA(void *, virtual, A0),
  18     AROS_LHA(void *, physical, A1),
  19     AROS_LHA(uint32_t, length, D0),
  20     AROS_LHA(KRN_MapAttr, flags, D1),
  21     struct KernelBase *, KernelBase, 16, Kernel)
  22 {
  23     AROS_LIBFUNC_INIT
  24
  25     BOOL invalid = (flags & (MAP_Readable | MAP_Writable | MAP_Executable)) == 0;
  26     BOOL readonly = (flags & MAP_Writable) == 0;
  27     BOOL supervisor = (flags & MAP_Supervisor) != 0;
  28     UBYTE cm = (flags & MAP_CacheInhibit) ? CM_SERIALIZED : ((flags & MAP_WriteThrough) ? CM_WRITETHROUGH : CM_COPYBACK);
  29
  30     return map_region(KernelBase, virtual, physical, length, invalid, readonly, supervisor, cm);
  31
  32     AROS_LIBFUNC_EXIT
  33 }