arch/m68k-all/exec/addmemlist.c

   1 /*
   2     Copyright © 1995-2012, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: Add memory to the public list of memory.
   6     Lang: english
   7 */
   8
   9 #include <aros/debug.h>
  10 #include <exec/execbase.h>
  11 #include <aros/libcall.h>
  12 #include <exec/memory.h>
  13 #include <proto/exec.h>
  14 #include <proto/kernel.h>
  15
  16 #include "exec_intern.h"
  17 #include "memory.h"
  18
  19 AROS_LH5(void, AddMemList,
  20         AROS_LHA(IPTR,   size,       D0),
  21         AROS_LHA(ULONG,  attributes, D1),
  22         AROS_LHA(LONG,   pri,        D2),
  23         AROS_LHA(APTR,   base,       A0),
  24         AROS_LHA(STRPTR, name,       A1),
  25         struct ExecBase *, SysBase, 103, Exec)
  26 {
  27     AROS_LIBFUNC_INIT
  28
  29     struct MemHeader *mh;
  30
  31     /* We may be called by some special boot ROM (UAE extra Chip RAM)
  32      * or user may manually add some memory region(s).
  33      * We need to remove invalid mapping in MMU debugging mode.
  34      */
  35     KrnSetProtection((void*)base, size, (attributes & MEMF_CHIP) ?
  36         MAP_Readable | MAP_Writable | MAP_Executable | MAP_CacheInhibit :
  37         MAP_Readable | MAP_Writable | MAP_Executable);
  38
  39     mh=(struct MemHeader *)base;
  40     mh->mh_Node.ln_Type=NT_MEMORY;
  41     mh->mh_Node.ln_Pri=pri;
  42     mh->mh_Node.ln_Name=name;
  43     mh->mh_Attributes=attributes;
  44     mh->mh_First=(struct MemChunk *)((UBYTE *)mh+MEMHEADER_TOTAL);
  45     mh->mh_First->mc_Next=NULL;
  46     mh->mh_First->mc_Bytes=size-MEMHEADER_TOTAL;
  47     mh->mh_Lower=mh->mh_First;
  48     mh->mh_Upper=(APTR)((UBYTE *)base+size);
  49     mh->mh_Free=mh->mh_First->mc_Bytes;
  50
  51     /* Protect the memory list. */
  52     MEM_LOCK;
  53
  54     /* Add MemHeader */
  55     Enqueue(&SysBase->MemList,&mh->mh_Node);
  56
  57     MEM_UNLOCK;
  58
  59     AROS_LIBFUNC_EXIT
  60 }
  61
  62