40 lines
921 B
C
40 lines
921 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_FB_H_
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#define _ASM_FB_H_
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#include <linux/fb.h>
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#include <linux/fs.h>
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#include <asm/page.h>
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#include <asm/setup.h>
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#ifdef CONFIG_MMU
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#ifdef CONFIG_SUN3
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static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma,
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unsigned long off)
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{
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pgprot_val(vma->vm_page_prot) |= SUN3_PAGE_NOCACHE;
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}
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#else
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static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma,
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unsigned long off)
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{
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if (CPU_IS_020_OR_030)
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pgprot_val(vma->vm_page_prot) |= _PAGE_NOCACHE030;
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if (CPU_IS_040_OR_060) {
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pgprot_val(vma->vm_page_prot) &= _CACHEMASK040;
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/* Use no-cache mode, serialized */
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pgprot_val(vma->vm_page_prot) |= _PAGE_NOCACHE_S;
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}
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}
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#endif /* CONFIG_SUN3 */
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#else
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#define fb_pgprotect(...) do {} while (0)
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#endif /* CONFIG_MMU */
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static inline int fb_is_primary_device(struct fb_info *info)
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{
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return 0;
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}
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#endif /* _ASM_FB_H_ */
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