| /* SPDX-License-Identifier: GPL-2.0 */ | |
| #ifndef _ASM_FB_H_ | |
| #define _ASM_FB_H_ | |
| #include <linux/fb.h> | |
| #include <linux/fs.h> | |
| #include <asm/page.h> | |
| #include <asm/setup.h> | |
| #ifdef CONFIG_MMU | |
| #ifdef CONFIG_SUN3 | |
| static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, | |
| unsigned long off) | |
| { | |
| pgprot_val(vma->vm_page_prot) |= SUN3_PAGE_NOCACHE; | |
| } | |
| #else | |
| static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, | |
| unsigned long off) | |
| { | |
| if (CPU_IS_020_OR_030) | |
| pgprot_val(vma->vm_page_prot) |= _PAGE_NOCACHE030; | |
| if (CPU_IS_040_OR_060) { | |
| pgprot_val(vma->vm_page_prot) &= _CACHEMASK040; | |
| /* Use no-cache mode, serialized */ | |
| pgprot_val(vma->vm_page_prot) |= _PAGE_NOCACHE_S; | |
| } | |
| } | |
| #endif /* CONFIG_SUN3 */ | |
| #else | |
| #define fb_pgprotect(...) do {} while (0) | |
| #endif /* CONFIG_MMU */ | |
| static inline int fb_is_primary_device(struct fb_info *info) | |
| { | |
| return 0; | |
| } | |
| #endif /* _ASM_FB_H_ */ |