linux-kernel - Re: [PATCH v2 5/5] fbdev: Define framebuffer I/O from Linux' I/O functions

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Date:   Sat, 29 Apr 2023 14:28:08 +0200
From:   Thomas Zimmermann <tzimmermann@...e.de>
To:     Sam Ravnborg <sam@...nborg.org>
Cc:     linux-arch@...r.kernel.org, linux-fbdev@...r.kernel.org,
        linux-ia64@...r.kernel.org, loongarch@...ts.linux.dev,
        arnd@...db.de, deller@....de, chenhuacai@...nel.org,
        javierm@...hat.com, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org,
        James.Bottomley@...senpartnership.com,
        linux-m68k@...ts.linux-m68k.org, geert@...ux-m68k.org,
        linux-parisc@...r.kernel.org, vgupta@...nel.org,
        sparclinux@...r.kernel.org, kernel@...0n.name,
        linux-snps-arc@...ts.infradead.org, davem@...emloft.net,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 5/5] fbdev: Define framebuffer I/O from Linux' I/O
 functions

Hi Sam

Am 28.04.23 um 18:54 schrieb Sam Ravnborg:
> Hi Thomas,
> 
> On Fri, Apr 28, 2023 at 04:18:38PM +0200, Thomas Zimmermann wrote:
>> I'd be happy to have fb_() wrappers that are I/O helpers without
>> ordering guarantees. I'd just wouldn't want them in <linux/fb.h>
> 
> How about throwing them into a new drm_fb.h header file.
> This header file could be the home for all the fb stuff that is
> shared between drm and the legacy fbdev.
> 
> Then we may slowly migrate more fbdev stuff to drm and let the legacy
> fbdev stuff use the maintained drm stuff.
> Dunno, the pain may not be worth it.

DRM might not be relevant if we can remove fb_mem*(). So I'd like to go 
back to something closer to v1 of these patches. See my reply to Arnd.

Best regards
Thomas

> 
> 	Sam

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)

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