arch/ppc-sam440/kernel/virtualtophysical.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
  11 #include <proto/kernel.h>
  12
  13 /* See rom/kernel/virtualtophysical.c for documentation */
  14
  15 AROS_LH1I(void *, KrnVirtualToPhysical,
  16     AROS_LHA(void *, virtual, A0),
  17     struct KernelBase *, KernelBase, 20, Kernel)
  18 {
  19         AROS_LIBFUNC_INIT
  20
  21         uintptr_t virt = (uintptr_t)virtual;
  22         uintptr_t phys = virt;
  23
  24         if (virt >= 0xff000000)
  25                 phys = virt - 0xff000000;
  26
  27         return (void*)phys;
  28
  29         AROS_LIBFUNC_EXIT
  30 }