fb.h 693 B

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