fb.h 882 B

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