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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
146b7cdb GU |
2 | #ifndef _ASM_FB_H_ |
3 | #define _ASM_FB_H_ | |
4 | ||
5 | #include <linux/fb.h> | |
6 | #include <linux/fs.h> | |
7 | #include <asm/page.h> | |
8 | #include <asm/setup.h> | |
9 | ||
10 | #ifdef CONFIG_MMU | |
11 | #ifdef CONFIG_SUN3 | |
12 | static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, | |
13 | unsigned long off) | |
14 | { | |
15 | pgprot_val(vma->vm_page_prot) |= SUN3_PAGE_NOCACHE; | |
16 | } | |
49148020 | 17 | #else |
146b7cdb GU |
18 | static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, |
19 | unsigned long off) | |
20 | { | |
21 | if (CPU_IS_020_OR_030) | |
22 | pgprot_val(vma->vm_page_prot) |= _PAGE_NOCACHE030; | |
23 | if (CPU_IS_040_OR_060) { | |
24 | pgprot_val(vma->vm_page_prot) &= _CACHEMASK040; | |
25 | /* Use no-cache mode, serialized */ | |
26 | pgprot_val(vma->vm_page_prot) |= _PAGE_NOCACHE_S; | |
27 | } | |
28 | } | |
29 | #endif /* CONFIG_SUN3 */ | |
30 | #else | |
31 | #define fb_pgprotect(...) do {} while (0) | |
32 | #endif /* CONFIG_MMU */ | |
33 | ||
34 | static inline int fb_is_primary_device(struct fb_info *info) | |
35 | { | |
36 | return 0; | |
37 | } | |
38 | ||
39 | #endif /* _ASM_FB_H_ */ |