1#ifndef _H8300_PAGE_H
2#define _H8300_PAGE_H
3
4
5
6#define PAGE_SHIFT (12)
7#define PAGE_SIZE (1UL << PAGE_SHIFT)
8#define PAGE_MASK (~(PAGE_SIZE-1))
9
10#include <asm/setup.h>
11
12#ifndef __ASSEMBLY__
13
14#define get_user_page(vaddr) __get_free_page(GFP_KERNEL)
15#define free_user_page(page, addr) free_page(addr)
16
17#define clear_page(page) memset((page), 0, PAGE_SIZE)
18#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE)
19
20#define clear_user_page(page, vaddr, pg) clear_page(page)
21#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
22
23#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
24 alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
25#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
26
27
28
29
30typedef struct { unsigned long pte; } pte_t;
31typedef struct { unsigned long pmd[16]; } pmd_t;
32typedef struct { unsigned long pgd; } pgd_t;
33typedef struct { unsigned long pgprot; } pgprot_t;
34typedef struct page *pgtable_t;
35
36#define pte_val(x) ((x).pte)
37#define pmd_val(x) ((&x)->pmd[0])
38#define pgd_val(x) ((x).pgd)
39#define pgprot_val(x) ((x).pgprot)
40
41#define __pte(x) ((pte_t) { (x) } )
42#define __pmd(x) ((pmd_t) { (x) } )
43#define __pgd(x) ((pgd_t) { (x) } )
44#define __pgprot(x) ((pgprot_t) { (x) } )
45
46extern unsigned long memory_start;
47extern unsigned long memory_end;
48
49#endif
50
51#include <asm/page_offset.h>
52
53#define PAGE_OFFSET (PAGE_OFFSET_RAW)
54
55#ifndef __ASSEMBLY__
56
57#define __pa(vaddr) virt_to_phys(vaddr)
58#define __va(paddr) phys_to_virt((unsigned long)paddr)
59
60#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
61#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
62
63#define MAP_NR(addr) (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT)
64#define virt_to_page(addr) (mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT))
65#define page_to_virt(page) ((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)
66#define pfn_valid(page) (page < max_mapnr)
67
68#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT)
69
70#define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
71 ((void *)(kaddr) < (void *)memory_end))
72
73#endif
74
75#include <asm-generic/memory_model.h>
76#include <asm-generic/getorder.h>
77
78#endif
79
