1#ifndef _M68KNOMMU_PAGE_H
2#define _M68KNOMMU_PAGE_H
3
4#include <linux/const.h>
5
6
7
8#define PAGE_SHIFT (12)
9#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
10#define PAGE_MASK (~(PAGE_SIZE-1))
11
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
25#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
26 alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
27#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
28
29
30
31
32typedef struct { unsigned long pte; } pte_t;
33typedef struct { unsigned long pmd[16]; } pmd_t;
34typedef struct { unsigned long pgd; } pgd_t;
35typedef struct { unsigned long pgprot; } pgprot_t;
36typedef struct page *pgtable_t;
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
48extern unsigned long memory_start;
49extern unsigned long memory_end;
50
51#endif
52
53#include <asm/page_offset.h>
54
55#define PAGE_OFFSET (PAGE_OFFSET_RAW)
56
57#ifndef __ASSEMBLY__
58
59#define __pa(vaddr) virt_to_phys((void *)(vaddr))
60#define __va(paddr) phys_to_virt((unsigned long)(paddr))
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))
70#define pfn_valid(pfn) ((pfn) < max_mapnr)
71
72#define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
73 ((void *)(kaddr) < (void *)memory_end))
74
75#endif
76
77#include <asm-generic/getorder.h>
78
79#endif
80
