arch/m68k/include/asm/fb.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   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 }
  17 #else
  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_ */