Linux Kernel  3.7.1
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page.h
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1 #ifndef _M68K_PAGE_H
2 #define _M68K_PAGE_H
3 
4 #include <linux/const.h>
5 #include <asm/setup.h>
6 #include <asm/page_offset.h>
7 
8 /* PAGE_SHIFT determines the page size */
9 #if defined(CONFIG_SUN3) || defined(CONFIG_COLDFIRE)
10 #define PAGE_SHIFT 13
11 #else
12 #define PAGE_SHIFT 12
13 #endif
14 #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
15 #define PAGE_MASK (~(PAGE_SIZE-1))
16 #define PAGE_OFFSET (PAGE_OFFSET_RAW)
17 
18 #ifndef __ASSEMBLY__
19 
20 /*
21  * These are used to make use of C type-checking..
22  */
23 typedef struct { unsigned long pte; } pte_t;
24 typedef struct { unsigned long pmd[16]; } pmd_t;
25 typedef struct { unsigned long pgd; } pgd_t;
26 typedef struct { unsigned long pgprot; } pgprot_t;
27 typedef struct page *pgtable_t;
28 
29 #define pte_val(x) ((x).pte)
30 #define pmd_val(x) ((&x)->pmd[0])
31 #define pgd_val(x) ((x).pgd)
32 #define pgprot_val(x) ((x).pgprot)
33 
34 #define __pte(x) ((pte_t) { (x) } )
35 #define __pmd(x) ((pmd_t) { (x) } )
36 #define __pgd(x) ((pgd_t) { (x) } )
37 #define __pgprot(x) ((pgprot_t) { (x) } )
38 
39 extern unsigned long _rambase;
40 extern unsigned long _ramstart;
41 extern unsigned long _ramend;
42 
43 #endif /* !__ASSEMBLY__ */
44 
45 #ifdef CONFIG_MMU
46 #include <asm/page_mm.h>
47 #else
48 #include <asm/page_no.h>
49 #endif
50 
51 #include <asm-generic/getorder.h>
52 
53 #endif /* _M68K_PAGE_H */