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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
138ff346 GU |
2 | #ifndef _M68K_PAGE_H |
3 | #define _M68K_PAGE_H | |
4 | ||
5 | #include <linux/const.h> | |
6 | #include <asm/setup.h> | |
7 | #include <asm/page_offset.h> | |
8 | ||
9 | /* PAGE_SHIFT determines the page size */ | |
9e95f7cd GU |
10 | #if defined(CONFIG_SUN3) || defined(CONFIG_COLDFIRE) |
11 | #define PAGE_SHIFT 13 | |
49148020 | 12 | #else |
9e95f7cd | 13 | #define PAGE_SHIFT 12 |
138ff346 GU |
14 | #endif |
15 | #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) | |
16 | #define PAGE_MASK (~(PAGE_SIZE-1)) | |
17 | #define PAGE_OFFSET (PAGE_OFFSET_RAW) | |
18 | ||
19 | #ifndef __ASSEMBLY__ | |
20 | ||
21 | /* | |
22 | * These are used to make use of C type-checking.. | |
23 | */ | |
24 | typedef struct { unsigned long pte; } pte_t; | |
25 | typedef struct { unsigned long pmd[16]; } pmd_t; | |
26 | typedef struct { unsigned long pgd; } pgd_t; | |
27 | typedef struct { unsigned long pgprot; } pgprot_t; | |
28 | typedef struct page *pgtable_t; | |
29 | ||
30 | #define pte_val(x) ((x).pte) | |
31 | #define pmd_val(x) ((&x)->pmd[0]) | |
32 | #define pgd_val(x) ((x).pgd) | |
33 | #define pgprot_val(x) ((x).pgprot) | |
34 | ||
35 | #define __pte(x) ((pte_t) { (x) } ) | |
4c2b5e0f | 36 | #define __pmd(x) ((pmd_t) { { (x) }, }) |
138ff346 GU |
37 | #define __pgd(x) ((pgd_t) { (x) } ) |
38 | #define __pgprot(x) ((pgprot_t) { (x) } ) | |
39 | ||
88be3515 GU |
40 | extern unsigned long _rambase; |
41 | extern unsigned long _ramstart; | |
42 | extern unsigned long _ramend; | |
43 | ||
138ff346 GU |
44 | #endif /* !__ASSEMBLY__ */ |
45 | ||
46 | #ifdef CONFIG_MMU | |
a1ce3928 | 47 | #include <asm/page_mm.h> |
138ff346 | 48 | #else |
a1ce3928 | 49 | #include <asm/page_no.h> |
49148020 | 50 | #endif |
138ff346 | 51 | |
eb37bc3f SM |
52 | #define __phys_to_pfn(paddr) ((unsigned long)((paddr) >> PAGE_SHIFT)) |
53 | #define __pfn_to_phys(pfn) PFN_PHYS(pfn) | |
54 | ||
0c7e59c4 GU |
55 | #define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ |
56 | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) | |
57 | ||
138ff346 GU |
58 | #include <asm-generic/getorder.h> |
59 | ||
60 | #endif /* _M68K_PAGE_H */ |