1#ifndef _CRIS_PAGE_H
2#define _CRIS_PAGE_H
3
4#include <arch/page.h>
5#include <linux/const.h>
6
7
8#define PAGE_SHIFT 13
9#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
10#define PAGE_MASK (~(PAGE_SIZE-1))
11
12#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
13#define copy_page(to,from) memcpy((void *)(to), (void *)(from), PAGE_SIZE)
14
15#define clear_user_page(page, vaddr, pg) clear_page(page)
16#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
17
18#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
19 alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
20#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
21
22
23
24
25#ifndef __ASSEMBLY__
26typedef struct { unsigned long pte; } pte_t;
27typedef struct { unsigned long pgd; } pgd_t;
28typedef struct { unsigned long pgprot; } pgprot_t;
29typedef struct page *pgtable_t;
30#endif
31
32#define pte_val(x) ((x).pte)
33#define pgd_val(x) ((x).pgd)
34#define pgprot_val(x) ((x).pgprot)
35
36#define __pte(x) ((pte_t) { (x) } )
37#define __pgd(x) ((pgd_t) { (x) } )
38#define __pgprot(x) ((pgprot_t) { (x) } )
39
40
41
42#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT)
43#define pfn_valid(pfn) (((pfn) - (PAGE_OFFSET >> PAGE_SHIFT)) < max_mapnr)
44
45
46
47
48
49
50
51
52
53#define virt_to_page(kaddr) (mem_map + (((unsigned long)(kaddr) - PAGE_OFFSET) >> PAGE_SHIFT))
54#define VALID_PAGE(page) (((page) - mem_map) < max_mapnr)
55#define virt_addr_valid(kaddr) pfn_valid((unsigned)(kaddr) >> PAGE_SHIFT)
56
57
58
59
60
61#define page_to_phys(page) __pa((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)
62
63#ifndef __ASSEMBLY__
64
65#endif
66
67#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
68 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
69
70#include <asm-generic/memory_model.h>
71#include <asm-generic/getorder.h>
72
73#endif
74
75