1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _ASM_FB_H_
 3#define _ASM_FB_H_
 4
 
 
 5#include <asm/page.h>
 6#include <asm/setup.h>
 7
 8static inline pgprot_t pgprot_framebuffer(pgprot_t prot,
 9					  unsigned long vm_start, unsigned long vm_end,
10					  unsigned long offset)
11{
12#ifdef CONFIG_MMU
13#ifdef CONFIG_SUN3
14	pgprot_val(prot) |= SUN3_PAGE_NOCACHE;
 
 
 
 
15#else
 
 
 
16	if (CPU_IS_020_OR_030)
17		pgprot_val(prot) |= _PAGE_NOCACHE030;
18	if (CPU_IS_040_OR_060) {
19		pgprot_val(prot) &= _CACHEMASK040;
20		/* Use no-cache mode, serialized */
21		pgprot_val(prot) |= _PAGE_NOCACHE_S;
22	}
 
23#endif /* CONFIG_SUN3 */
 
 
24#endif /* CONFIG_MMU */
25
26	return prot;
 
 
27}
28#define pgprot_framebuffer pgprot_framebuffer
29
30#include <asm-generic/fb.h>
31
32#endif /* _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_ */