Pileus Git - ~andy/linux/blob - arch/sparc/include/asm/fixmap.h

   1 /* Highmem related constants */
   2
   3 #ifndef _ASM_FIXMAP_H
   4 #define _ASM_FIXMAP_H
   5
   6 #include <asm/kmap_types.h>
   7
   8 enum fixed_addresses {
   9         FIX_HOLE,
  10 #ifdef CONFIG_HIGHMEM
  11         FIX_KMAP_BEGIN,
  12         FIX_KMAP_END = (KM_TYPE_NR * NR_CPUS),
  13 #endif
  14         __end_of_fixed_addresses
  15 };
  16
  17 /* Leave one empty page between IO pages at 0xfd000000 and
  18  * the top of the fixmap.
  19  */
  20 #define FIXADDR_TOP     (0xfcfff000UL)
  21 #define FIXADDR_SIZE    ((FIX_KMAP_END + 1) << PAGE_SHIFT)
  22 #define FIXADDR_START   (FIXADDR_TOP - FIXADDR_SIZE)
  23
  24 #define __fix_to_virt(x)        (FIXADDR_TOP - ((x) << PAGE_SHIFT))
  25
  26 #endif