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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _H8300_PGTABLE_H
2#define _H8300_PGTABLE_H
3
4#include <asm-generic/4level-fixup.h>
5
Linus Torvalds1da177e2005-04-16 15:20:36 -07006#include <linux/slab.h>
7#include <asm/processor.h>
8#include <asm/page.h>
9#include <asm/io.h>
10
11#define pgd_present(pgd) (1) /* pages are always present on NO_MM */
12#define pgd_none(pgd) (0)
13#define pgd_bad(pgd) (0)
14#define pgd_clear(pgdp)
15#define kern_addr_valid(addr) (1)
16#define pmd_offset(a, b) ((void *)0)
17#define pmd_none(pmd) (1)
18#define pgd_offset_k(adrdress) ((pgd_t *)0)
19#define pte_offset_kernel(dir, address) ((pte_t *)0)
20
21#define PAGE_NONE __pgprot(0) /* these mean nothing to NO_MM */
22#define PAGE_SHARED __pgprot(0) /* these mean nothing to NO_MM */
23#define PAGE_COPY __pgprot(0) /* these mean nothing to NO_MM */
24#define PAGE_READONLY __pgprot(0) /* these mean nothing to NO_MM */
25#define PAGE_KERNEL __pgprot(0) /* these mean nothing to NO_MM */
26
27extern void paging_init(void);
28#define swapper_pg_dir ((pgd_t *) 0)
29
30#define __swp_type(x) (0)
31#define __swp_offset(x) (0)
32#define __swp_entry(typ,off) ((swp_entry_t) { ((typ) | ((off) << 7)) })
33#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
34#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
35
36static inline int pte_file(pte_t pte) { return 0; }
37
38/*
39 * ZERO_PAGE is a global shared page that is always zero: used
40 * for zero-mapped memory areas etc..
41 */
42#define ZERO_PAGE(vaddr) (virt_to_page(0))
43
44/*
45 * These would be in other places but having them here reduces the diffs.
46 */
47extern unsigned int kobjsize(const void *objp);
48extern int is_in_rom(unsigned long);
49
50/*
51 * No page table caches to initialise
52 */
53#define pgtable_cache_init() do { } while (0)
Linus Torvalds1da177e2005-04-16 15:20:36 -070054
55#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
56 remap_pfn_range(vma, vaddr, pfn, size, prot)
57
58#define MK_IOSPACE_PFN(space, pfn) (pfn)
59#define GET_IOSPACE(pfn) 0
60#define GET_PFN(pfn) (pfn)
61
62/*
63 * All 32bit addresses are effectively valid for vmalloc...
64 * Sort of meaningless for non-VM targets.
65 */
66#define VMALLOC_START 0
67#define VMALLOC_END 0xffffffff
68
69/*
70 * All 32bit addresses are effectively valid for vmalloc...
71 * Sort of meaningless for non-VM targets.
72 */
73#define VMALLOC_START 0
74#define VMALLOC_END 0xffffffff
75
76#endif /* _H8300_PGTABLE_H */