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/Ethereal-msm8939-beta9/arch/m68k/include/asm/pgtable_no.h

https://bitbucket.org/MilosStamenkovic95/etherealos
C Header | 71 lines | 36 code | 15 blank | 20 comment | 2 complexity | 07cd359fc339343b99823002faea04b1 MD5 | raw file
 1#ifndef _M68KNOMMU_PGTABLE_H
 2#define _M68KNOMMU_PGTABLE_H
 3
 4#include <asm-generic/4level-fixup.h>
 5
 6/*
 7 * (C) Copyright 2000-2002, Greg Ungerer <gerg@snapgear.com>
 8 */
 9
10#include <linux/slab.h>
11#include <asm/processor.h>
12#include <asm/page.h>
13#include <asm/io.h>
14
15/*
16 * Trivial page table functions.
17 */
18#define pgd_present(pgd)	(1)
19#define pgd_none(pgd)		(0)
20#define pgd_bad(pgd)		(0)
21#define pgd_clear(pgdp)
22#define kern_addr_valid(addr)	(1)
23#define	pmd_offset(a, b)	((void *)0)
24
25#define PAGE_NONE	__pgprot(0)
26#define PAGE_SHARED	__pgprot(0)
27#define PAGE_COPY	__pgprot(0)
28#define PAGE_READONLY	__pgprot(0)
29#define PAGE_KERNEL	__pgprot(0)
30
31extern void paging_init(void);
32#define swapper_pg_dir ((pgd_t *) 0)
33
34#define __swp_type(x)		(0)
35#define __swp_offset(x)		(0)
36#define __swp_entry(typ,off)	((swp_entry_t) { ((typ) | ((off) << 7)) })
37#define __pte_to_swp_entry(pte)	((swp_entry_t) { pte_val(pte) })
38#define __swp_entry_to_pte(x)	((pte_t) { (x).val })
39
40static inline int pte_file(pte_t pte) { return 0; }
41
42/*
43 * ZERO_PAGE is a global shared page that is always zero: used
44 * for zero-mapped memory areas etc..
45 */
46#define ZERO_PAGE(vaddr)	(virt_to_page(0))
47
48/*
49 * These would be in other places but having them here reduces the diffs.
50 */
51extern unsigned int kobjsize(const void *objp);
52
53/*
54 * No page table caches to initialise.
55 */
56#define pgtable_cache_init()	do { } while (0)
57
58/*
59 * All 32bit addresses are effectively valid for vmalloc...
60 * Sort of meaningless for non-VM targets.
61 */
62#define	VMALLOC_START	0
63#define	VMALLOC_END	0xffffffff
64#define	KMAP_START	0
65#define	KMAP_END	0xffffffff
66
67#include <asm-generic/pgtable.h>
68
69#define check_pgt_cache()	do { } while (0)
70
71#endif /* _M68KNOMMU_PGTABLE_H */