linux-kernel - [PATCH v3 14/19] arch/parisc: Implement <asm/fb.h> with generic helpers

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Message-Id: <20230417125651.25126-15-tzimmermann@suse.de>
Date:   Mon, 17 Apr 2023 14:56:46 +0200
From:   Thomas Zimmermann <tzimmermann@...e.de>
To:     arnd@...db.de, daniel.vetter@...ll.ch, deller@....de,
        javierm@...hat.com, gregkh@...uxfoundation.org
Cc:     linux-arch@...r.kernel.org, linux-fbdev@...r.kernel.org,
        dri-devel@...ts.freedesktop.org,
        linux-snps-arc@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-ia64@...r.kernel.org,
        loongarch@...ts.linux.dev, linux-m68k@...ts.linux-m68k.org,
        linux-mips@...r.kernel.org, linux-parisc@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, linux-sh@...r.kernel.org,
        sparclinux@...r.kernel.org, x86@...nel.org,
        Thomas Zimmermann <tzimmermann@...e.de>,
        "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>
Subject: [PATCH v3 14/19] arch/parisc: Implement <asm/fb.h> with generic helpers

Replace the architecture's fbdev helpers with the generic ones
from <asm-generic/fb.h>. On PARISC, pgprot_writecombine() and
pgprot_noncached() are the same; hence no functional changes.

v3:
	* use default implementation for fb_pgprotect() (Arnd)

Signed-off-by: Thomas Zimmermann <tzimmermann@...e.de>
Cc: "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>
Cc: Helge Deller <deller@....de>
---
 arch/parisc/include/asm/fb.h | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/arch/parisc/include/asm/fb.h b/arch/parisc/include/asm/fb.h
index 0b9a38ced5c8..658a8a7dc531 100644
--- a/arch/parisc/include/asm/fb.h
+++ b/arch/parisc/include/asm/fb.h
@@ -2,23 +2,13 @@
 #ifndef _ASM_FB_H_
 #define _ASM_FB_H_
 
-#include <linux/fb.h>
-#include <linux/fs.h>
-#include <asm/page.h>
-
-static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma,
-				unsigned long off)
-{
-	pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
-}
+struct fb_info;
 
 #if defined(CONFIG_STI_CORE)
 int fb_is_primary_device(struct fb_info *info);
-#else
-static inline int fb_is_primary_device(struct fb_info *info)
-{
-	return 0;
-}
+#define fb_is_primary_device fb_is_primary_device
 #endif
 
+#include <asm-generic/fb.h>
+
 #endif /* _ASM_FB_H_ */
-- 
2.40.0