include/asm-arm/mach/map.h

   1 /*
   2  *  linux/include/asm-arm/map.h
   3  *
   4  *  Copyright (C) 1999-2000 Russell King
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  *  Page table mapping constructs and function prototypes
  11  */
  12 struct map_desc {
  13         unsigned long virtual;
  14         unsigned long pfn;
  15         unsigned long length;
  16         unsigned int type;
  17 };
  18
  19 struct meminfo;
  20
  21 #define MT_DEVICE               0
  22 #define MT_CACHECLEAN           1
  23 #define MT_MINICLEAN            2
  24 #define MT_LOW_VECTORS          3
  25 #define MT_HIGH_VECTORS         4
  26 #define MT_MEMORY               5
  27 #define MT_ROM                  6
  28 #define MT_IXP2000_DEVICE       7
  29
  30 #define __phys_to_pfn(paddr)    ((paddr) >> PAGE_SHIFT)
  31 #define __pfn_to_phys(pfn)      ((pfn) << PAGE_SHIFT)
  32
  33 extern void create_memmap_holes(struct meminfo *);
  34 extern void memtable_init(struct meminfo *);
  35 extern void iotable_init(struct map_desc *, int);
  36 extern void setup_io_desc(void);