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arch/sparc: Implement <asm/fb.h> with generic helpers

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Replace sparc64's fb_pgprotect() with the generic one
from <asm-generic/fb.h>. On sparc, pgprot_writecombine() and
pgprot_noncached() are the same; hence no functional changes

v3:
	* use default implementation for fb_pgprotect() on
	  sparc64 (Arnd)
v2:
	* restore the original fb_pgprotect()

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230417125651.25126-19-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2023-04-17 14:56:50 +02:00
parent 4eec0b3048
commit db76f19a60
1 changed files with 8 additions and 8 deletions
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16
arch/sparc/include/asm/fb.h
View File

@ -2,20 +2,20 @@
#ifndef _SPARC_FB_H_
#define _SPARC_FB_H_
#include <linux/fs.h>
#include <asm/page.h>
struct fb_info;
struct file;
struct vm_area_struct;
#ifdef CONFIG_SPARC32
static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma,
unsigned long off)
{
#ifdef CONFIG_SPARC64
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
{ }
#define fb_pgprotect fb_pgprotect
#endif
}
int fb_is_primary_device(struct fb_info *info);
#define fb_is_primary_device fb_is_primary_device
#include <asm-generic/fb.h>
#endif /* _SPARC_FB_H_ */