Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | #ifndef _M68KNOMMU_PAGE_H |
2 | #define _M68KNOMMU_PAGE_H | |
3 | ||
2985709d TA |
4 | #include <linux/const.h> |
5 | ||
1da177e4 LT |
6 | /* PAGE_SHIFT determines the page size */ |
7 | ||
8 | #define PAGE_SHIFT (12) | |
2985709d | 9 | #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) |
1da177e4 LT |
10 | #define PAGE_MASK (~(PAGE_SIZE-1)) |
11 | ||
1da177e4 LT |
12 | #include <asm/setup.h> |
13 | ||
14 | #ifndef __ASSEMBLY__ | |
15 | ||
16 | #define get_user_page(vaddr) __get_free_page(GFP_KERNEL) | |
17 | #define free_user_page(page, addr) free_page(addr) | |
18 | ||
19 | #define clear_page(page) memset((page), 0, PAGE_SIZE) | |
20 | #define copy_page(to,from) memcpy((to), (from), PAGE_SIZE) | |
21 | ||
22 | #define clear_user_page(page, vaddr, pg) clear_page(page) | |
23 | #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) | |
24 | ||
769848c0 MG |
25 | #define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ |
26 | alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) | |
1da177e4 LT |
27 | #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE |
28 | ||
29 | /* | |
30 | * These are used to make use of C type-checking.. | |
31 | */ | |
32 | typedef struct { unsigned long pte; } pte_t; | |
33 | typedef struct { unsigned long pmd[16]; } pmd_t; | |
34 | typedef struct { unsigned long pgd; } pgd_t; | |
35 | typedef struct { unsigned long pgprot; } pgprot_t; | |
941edd03 | 36 | typedef struct page *pgtable_t; |
1da177e4 LT |
37 | |
38 | #define pte_val(x) ((x).pte) | |
39 | #define pmd_val(x) ((&x)->pmd[0]) | |
40 | #define pgd_val(x) ((x).pgd) | |
41 | #define pgprot_val(x) ((x).pgprot) | |
42 | ||
43 | #define __pte(x) ((pte_t) { (x) } ) | |
44 | #define __pmd(x) ((pmd_t) { (x) } ) | |
45 | #define __pgd(x) ((pgd_t) { (x) } ) | |
46 | #define __pgprot(x) ((pgprot_t) { (x) } ) | |
47 | ||
1da177e4 LT |
48 | extern unsigned long memory_start; |
49 | extern unsigned long memory_end; | |
50 | ||
51 | #endif /* !__ASSEMBLY__ */ | |
52 | ||
53 | #include <asm/page_offset.h> | |
54 | ||
55 | #define PAGE_OFFSET (PAGE_OFFSET_RAW) | |
56 | ||
57 | #ifndef __ASSEMBLY__ | |
58 | ||
682137f7 GU |
59 | #define __pa(vaddr) ((unsigned long)(vaddr)) |
60 | #define __va(paddr) ((void *)(paddr)) | |
1da177e4 LT |
61 | |
62 | #define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) | |
63 | #define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT) | |
64 | ||
65 | #define virt_to_page(addr) (mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT)) | |
66 | #define page_to_virt(page) ((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET) | |
67 | ||
68 | #define pfn_to_page(pfn) virt_to_page(pfn_to_virt(pfn)) | |
69 | #define page_to_pfn(page) virt_to_pfn(page_to_virt(page)) | |
e70bd116 | 70 | #define pfn_valid(pfn) ((pfn) < max_mapnr) |
1da177e4 LT |
71 | |
72 | #define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \ | |
73 | ((void *)(kaddr) < (void *)memory_end)) | |
74 | ||
75 | #endif /* __ASSEMBLY__ */ | |
76 | ||
5b17e1cd | 77 | #include <asm-generic/getorder.h> |
fd4fd5aa | 78 | |
1da177e4 | 79 | #endif /* _M68KNOMMU_PAGE_H */ |