From: Thomas Zimmermann <tzimmermann@suse.de>
To: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
arnd@arndb.de, daniel.vetter@ffwll.ch, deller@gmx.de,
javierm@redhat.com, gregkh@linuxfoundation.org
Cc: linux-arch@vger.kernel.org, linux-fbdev@vger.kernel.org,
dri-devel@lists.freedesktop.org,
linux-snps-arc@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org,
loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org,
linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org,
sparclinux@vger.kernel.org, x86@kernel.org,
Yoshinori Sato <ysato@users.sourceforge.jp>,
Rich Felker <dalias@libc.org>
Subject: Re: [PATCH v3 16/19] arch/sh: Implement <asm/fb.h> with generic helpers
Date: Mon, 17 Apr 2023 16:06:00 +0200 [thread overview]
Message-ID: <132f1185-d61f-b8c7-8d6e-4e4280a1a4ad@suse.de> (raw)
In-Reply-To: <3c188e948506dc97112dcc070cf16e36209c6cc5.camel@physik.fu-berlin.de>
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Hi
Am 17.04.23 um 15:02 schrieb John Paul Adrian Glaubitz:
> Hi Thomas!
>
> On Mon, 2023-04-17 at 14:56 +0200, Thomas Zimmermann wrote:
>> Replace the architecture's fbdev helpers with the generic
>> ones from <asm-generic/fb.h>. No functional changes.
>>
>> v2:
>> * use default implementation for fb_pgprotect() (Arnd)
>>
>> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
>> Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
>> Cc: Rich Felker <dalias@libc.org>
>> Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
>> ---
>> arch/sh/include/asm/fb.h | 15 +--------------
>> 1 file changed, 1 insertion(+), 14 deletions(-)
>>
>> diff --git a/arch/sh/include/asm/fb.h b/arch/sh/include/asm/fb.h
>> index 9a0bca2686fd..19df13ee9ca7 100644
>> --- a/arch/sh/include/asm/fb.h
>> +++ b/arch/sh/include/asm/fb.h
>> @@ -2,19 +2,6 @@
>> #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)
>> -{
>> - vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
>> -}
>
> Looking at the macro in asm-generic/fb.h, fb_pgprotect() is being replaced with
> a no-op function. Is that intentional? Can you briefly explain the background
> for this change?
Patch 01 of this patchset changes the generic fb_pgprotect() to set
pgprot_writecombine(). So on SH, there should be no change at all.
Best regards
Thomas
>
>> -static inline int fb_is_primary_device(struct fb_info *info)
>> -{
>> - return 0;
>> -}
>> +#include <asm-generic/fb.h>
>>
>> #endif /* _ASM_FB_H_ */
>
> Thanks,
> Adrian
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev
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next prev parent reply other threads:[~2023-04-17 14:06 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-17 12:56 [PATCH v3 00/19] arch: Consolidate <asm/fb.h> Thomas Zimmermann
2023-04-17 12:56 ` [PATCH v3 01/19] fbdev: Prepare generic architecture helpers Thomas Zimmermann
2023-04-17 12:56 ` [PATCH v3 02/19] arch/arc: Implement <asm/fb.h> with generic helpers Thomas Zimmermann
2023-04-17 12:56 ` [PATCH v3 03/19] arch/arm: " Thomas Zimmermann
2023-04-17 12:56 ` [PATCH v3 04/19] arch/arm64: " Thomas Zimmermann
2023-04-17 12:56 ` [PATCH v3 05/19] arch/ia64: " Thomas Zimmermann
2023-04-17 12:56 ` [PATCH v3 06/19] arch/loongarch: " Thomas Zimmermann
2023-06-28 10:26 ` WANG Xuerui
2023-04-17 12:56 ` [PATCH v3 07/19] arch/m68k: Merge variants of fb_pgprotect() into single function Thomas Zimmermann
2023-04-17 12:56 ` [PATCH v3 08/19] arch/m68k: Implement <asm/fb.h> with generic helpers Thomas Zimmermann
2023-04-17 12:56 ` [PATCH v3 09/19] arch/mips: " Thomas Zimmermann
2023-04-17 12:56 ` [PATCH v3 10/19] video: Remove trailing whitespaces Thomas Zimmermann
2023-04-17 12:56 ` [PATCH v3 11/19] video: Move HP PARISC STI core code to shared location Thomas Zimmermann
2023-04-17 12:56 ` [PATCH v3 12/19] arch/parisc: Remove trailing whitespaces Thomas Zimmermann
2023-04-17 12:56 ` [PATCH v3 13/19] arch/parisc: Implement fb_is_primary_device() under arch/parisc Thomas Zimmermann
2023-04-17 12:56 ` [PATCH v3 14/19] arch/parisc: Implement <asm/fb.h> with generic helpers Thomas Zimmermann
2023-04-17 12:56 ` [PATCH v3 15/19] arch/powerpc: " Thomas Zimmermann
2023-04-17 12:56 ` [PATCH v3 16/19] arch/sh: " Thomas Zimmermann
2023-04-17 13:02 ` John Paul Adrian Glaubitz
2023-04-17 14:06 ` Thomas Zimmermann [this message]
2023-04-17 14:07 ` Thomas Zimmermann
2023-04-17 14:13 ` John Paul Adrian Glaubitz
2023-04-17 14:16 ` Thomas Zimmermann
2023-04-17 14:21 ` John Paul Adrian Glaubitz
2023-04-17 12:56 ` [PATCH v3 17/19] arch/sparc: Implement fb_is_primary_device() in source file Thomas Zimmermann
2023-06-24 1:55 ` [v3,17/19] " Guenter Roeck
2023-06-24 9:27 ` Arnd Bergmann
2023-06-24 13:26 ` Guenter Roeck
2023-06-24 14:21 ` Arnd Bergmann
2023-06-28 10:01 ` Arnd Bergmann
2023-04-17 12:56 ` [PATCH v3 18/19] arch/sparc: Implement <asm/fb.h> with generic helpers Thomas Zimmermann
2023-04-17 12:56 ` [PATCH v3 19/19] arch/x86: " Thomas Zimmermann
2023-04-17 14:12 ` [PATCH v3 00/19] arch: Consolidate <asm/fb.h> Arnd Bergmann
2023-04-18 7:44 ` Thomas Zimmermann
2023-04-19 17:22 ` Helge Deller
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