1#ifndef _ASM_M32R_PGTABLE_2LEVEL_H
2#define _ASM_M32R_PGTABLE_2LEVEL_H
3#ifdef __KERNEL__
4
5
6
7
8
9#define PGDIR_SHIFT 22
10#define PTRS_PER_PGD 1024
11
12
13
14
15
16#define __PAGETABLE_PMD_FOLDED
17#define PMD_SHIFT 22
18#define PTRS_PER_PMD 1
19
20#define PTRS_PER_PTE 1024
21
22#define pte_ERROR(e) \
23 printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
24#define pmd_ERROR(e) \
25 printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, pmd_val(e))
26#define pgd_ERROR(e) \
27 printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
28
29
30
31
32
33
34static inline int pgd_none(pgd_t pgd) { return 0; }
35static inline int pgd_bad(pgd_t pgd) { return 0; }
36static inline int pgd_present(pgd_t pgd) { return 1; }
37#define pgd_clear(xp) do { } while (0)
38
39
40
41
42
43
44#define set_pte(pteptr, pteval) (*(pteptr) = pteval)
45#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
46
47
48
49
50
51#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)
52#define set_pgd(pgdptr, pgdval) (*(pgdptr) = pgdval)
53
54#define pgd_page_vaddr(pgd) \
55((unsigned long) __va(pgd_val(pgd) & PAGE_MASK))
56
57#ifndef CONFIG_DISCONTIGMEM
58#define pgd_page(pgd) (mem_map + ((pgd_val(pgd) >> PAGE_SHIFT) - PFN_BASE))
59#endif
60
61static inline pmd_t *pmd_offset(pgd_t * dir, unsigned long address)
62{
63 return (pmd_t *) dir;
64}
65
66#define ptep_get_and_clear(mm,addr,xp) __pte(xchg(&(xp)->pte, 0))
67#define pte_same(a, b) (pte_val(a) == pte_val(b))
68#define pte_page(x) pfn_to_page(pte_pfn(x))
69#define pte_none(x) (!pte_val(x))
70#define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT)
71#define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
72#define pfn_pmd(pfn, prot) __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
73
74#endif
75#endif
76