arch/h8300/include/asm/pgtable.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _H8300_PGTABLE_H
   3 #define _H8300_PGTABLE_H
   4 #define __ARCH_USE_5LEVEL_HACK
   5 #include <asm-generic/pgtable-nopud.h>
   6 #include <asm-generic/pgtable.h>
   7 #define pgtable_cache_init()   do { } while (0)
   8 extern void paging_init(void);
   9 #define PAGE_NONE               __pgprot(0)    /* these mean nothing to NO_MM */
  10 #define PAGE_SHARED             __pgprot(0)    /* these mean nothing to NO_MM */
  11 #define PAGE_COPY               __pgprot(0)    /* these mean nothing to NO_MM */
  12 #define PAGE_READONLY   __pgprot(0)    /* these mean nothing to NO_MM */
  13 #define PAGE_KERNEL             __pgprot(0)    /* these mean nothing to NO_MM */
  14 #define __swp_type(x)           (0)
  15 #define __swp_offset(x)         (0)
  16 #define __swp_entry(typ, off)   ((swp_entry_t) { ((typ) | ((off) << 7)) })
  17 #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
  18 #define __swp_entry_to_pte(x)   ((pte_t) { (x).val })
  19 #define kern_addr_valid(addr)   (1)
  20 #define pgprot_writecombine(prot)  (prot)
  21 #define pgprot_noncached pgprot_writecombine
  22
  23 static inline int pte_file(pte_t pte) { return 0; }
  24 #define swapper_pg_dir ((pgd_t *) 0)
  25 /*
  26  * ZERO_PAGE is a global shared page that is always zero: used
  27  * for zero-mapped memory areas etc..
  28  */
  29 #define ZERO_PAGE(vaddr)        (virt_to_page(0))
  30
  31 /*
  32  * These would be in other places but having them here reduces the diffs.
  33  */
  34 extern unsigned int kobjsize(const void *objp);
  35 extern int is_in_rom(unsigned long);
  36
  37 /*
  38  * No page table caches to initialise
  39  */
  40 #define pgtable_cache_init()   do { } while (0)
  41
  42 /*
  43  * All 32bit addresses are effectively valid for vmalloc...
  44  * Sort of meaningless for non-VM targets.
  45  */
  46 #define VMALLOC_START   0
  47 #define VMALLOC_END     0xffffffff
  48
  49 #define arch_enter_lazy_cpu_mode()    do {} while (0)
  50
  51 #endif /* _H8300_PGTABLE_H */