pgtable_no.h

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#ifndef _M68KNOMMU_PGTABLE_H
#define _M68KNOMMU_PGTABLE_H

#include <asm-generic/4level-fixup.h>

/*
 * (C) Copyright 2000-2002, Greg Ungerer <[email protected]>
 */

#include <linux/slab.h>
#include <asm/processor.h>
#include <asm/page.h>
#include <asm/io.h>

/*
 * Trivial page table functions.
 */
#define pgd_present(pgd)    (1)
#define pgd_none(pgd)       (0)
#define pgd_bad(pgd)        (0)
#define pgd_clear(pgdp)
#define kern_addr_valid(addr)   (1)
#define pmd_offset(a, b)    ((void *)0)

#define PAGE_NONE   __pgprot(0)
#define PAGE_SHARED __pgprot(0)
#define PAGE_COPY   __pgprot(0)
#define PAGE_READONLY   __pgprot(0)
#define PAGE_KERNEL __pgprot(0)

extern void paging_init(void);
#define swapper_pg_dir ((pgd_t *) 0)

#define __swp_type(x)       (0)
#define __swp_offset(x)     (0)
#define __swp_entry(typ,off)    ((swp_entry_t) { ((typ) | ((off) << 7)) })
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
#define __swp_entry_to_pte(x)   ((pte_t) { (x).val })

static inline int pte_file(pte_t pte) { return 0; }

/*
 * ZERO_PAGE is a global shared page that is always zero: used
 * for zero-mapped memory areas etc..
 */
#define ZERO_PAGE(vaddr)    (virt_to_page(0))

/*
 * These would be in other places but having them here reduces the diffs.
 */
extern unsigned int kobjsize(const void *objp);

/*
 * No page table caches to initialise.
 */
#define pgtable_cache_init()    do { } while (0)

#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)     \
        remap_pfn_range(vma, vaddr, pfn, size, prot)

/*
 * All 32bit addresses are effectively valid for vmalloc...
 * Sort of meaningless for non-VM targets.
 */
#define VMALLOC_START   0
#define VMALLOC_END 0xffffffff

#include <asm-generic/pgtable.h>

#define check_pgt_cache()   do { } while (0)

#endif /* _M68KNOMMU_PGTABLE_H */