LXR linux/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
  12static 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
  18static 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
  34static inline int fb_is_primary_device(struct fb_info *info)
  35{
  36        return 0;
  37}
  38
  39#endif /* _ASM_FB_H_ */
  40