| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Greg Ungerer | 146b7cd | 2009-02-06 14:25:53 +1000 | [diff] [blame] | 2 | #ifndef _ASM_FB_H_ |
| 3 | #define _ASM_FB_H_ |
| 4 | |
| Greg Ungerer | 146b7cd | 2009-02-06 14:25:53 +1000 | [diff] [blame] | 5 | #include <asm/page.h> |
| 6 | #include <asm/setup.h> |
| 7 | |
| Thomas Zimmermann | db21647 | 2023-04-17 14:56:40 +0200 | [diff] [blame] | 8 | struct file; |
| 9 | |
| Thomas Zimmermann | d847517 | 2023-04-17 14:56:39 +0200 | [diff] [blame] | 10 | static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, |
| 11 | unsigned long off) |
| 12 | { |
| Greg Ungerer | 146b7cd | 2009-02-06 14:25:53 +1000 | [diff] [blame] | 13 | #ifdef CONFIG_MMU |
| 14 | #ifdef CONFIG_SUN3 |
| Greg Ungerer | 146b7cd | 2009-02-06 14:25:53 +1000 | [diff] [blame] | 15 | pgprot_val(vma->vm_page_prot) |= SUN3_PAGE_NOCACHE; |
| Sam Ravnborg | 4914802 | 2009-01-16 21:58:10 +1000 | [diff] [blame] | 16 | #else |
| Greg Ungerer | 146b7cd | 2009-02-06 14:25:53 +1000 | [diff] [blame] | 17 | if (CPU_IS_020_OR_030) |
| 18 | pgprot_val(vma->vm_page_prot) |= _PAGE_NOCACHE030; |
| 19 | if (CPU_IS_040_OR_060) { |
| 20 | pgprot_val(vma->vm_page_prot) &= _CACHEMASK040; |
| 21 | /* Use no-cache mode, serialized */ |
| 22 | pgprot_val(vma->vm_page_prot) |= _PAGE_NOCACHE_S; |
| 23 | } |
| Greg Ungerer | 146b7cd | 2009-02-06 14:25:53 +1000 | [diff] [blame] | 24 | #endif /* CONFIG_SUN3 */ |
| Greg Ungerer | 146b7cd | 2009-02-06 14:25:53 +1000 | [diff] [blame] | 25 | #endif /* CONFIG_MMU */ |
| Thomas Zimmermann | d847517 | 2023-04-17 14:56:39 +0200 | [diff] [blame] | 26 | } |
| Thomas Zimmermann | db21647 | 2023-04-17 14:56:40 +0200 | [diff] [blame] | 27 | #define fb_pgprotect fb_pgprotect |
| Greg Ungerer | 146b7cd | 2009-02-06 14:25:53 +1000 | [diff] [blame] | 28 | |
| Thomas Zimmermann | db21647 | 2023-04-17 14:56:40 +0200 | [diff] [blame] | 29 | #include <asm-generic/fb.h> |
| Greg Ungerer | 146b7cd | 2009-02-06 14:25:53 +1000 | [diff] [blame] | 30 | |
| 31 | #endif /* _ASM_FB_H_ */ |
