arch/nds32/include/asm/fixmap.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 // Copyright (C) 2005-2017 Andes Technology Corporation
   3
   4 #ifndef __ASM_NDS32_FIXMAP_H
   5 #define __ASM_NDS32_FIXMAP_H
   6
   7 #ifdef CONFIG_HIGHMEM
   8 #include <linux/threads.h>
   9 #include <asm/kmap_size.h>
  10 #endif
  11
  12 enum fixed_addresses {
  13         FIX_HOLE,
  14         FIX_KMAP_RESERVED,
  15         FIX_KMAP_BEGIN,
  16 #ifdef CONFIG_HIGHMEM
  17         FIX_KMAP_END = FIX_KMAP_BEGIN + (KM_MAX_IDX * NR_CPUS) - 1,
  18 #endif
  19         FIX_EARLYCON_MEM_BASE,
  20         __end_of_fixed_addresses
  21 };
  22 #define FIXADDR_TOP             ((unsigned long) (-(16 * PAGE_SIZE)))
  23 #define FIXADDR_SIZE            ((__end_of_fixed_addresses) << PAGE_SHIFT)
  24 #define FIXADDR_START           (FIXADDR_TOP - FIXADDR_SIZE)
  25 #define FIXMAP_PAGE_IO          __pgprot(PAGE_DEVICE)
  26 void __set_fixmap(enum fixed_addresses idx, phys_addr_t phys, pgprot_t prot);
  27
  28 #include <asm-generic/fixmap.h>
  29 #endif /* __ASM_NDS32_FIXMAP_H */