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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: "David Herrmann" <dh.herrmann@gmail.com>,
	"Geert Uytterhoeven" <geert@linux-m68k.org>,
	"Thomas Petazzoni" <thomas.petazzoni@free-electrons.com>,
	"Tomi Valkeinen" <tomi.valkeinen@ti.com>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	"Noralf Trønnes" <noralf@tronnes.org>,
	"Sudip Mukherjee" <sudipm.mukherjee@gmail.com>,
	"Teddy Wang" <teddy.wang@siliconmotion.com>,
	"Arnaud Patard" <arnaud.patard@rtp-net.org>,
	"DRI Development" <dri-devel@lists.freedesktop.org>,
	"Linux Fbdev development list" <linux-fbdev@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [RFC PATCH 0/3] staging: remove fbdev drivers
Date: Sat, 10 Dec 2016 07:29:34 +1100	[thread overview]
Message-ID: <1481315374.17253.17.camel@kernel.crashing.org> (raw)
In-Reply-To: <CANq1E4S51c-fwJMN2P9MnhuErANvwfy41W2WBSSXrFPS3DXPkg@mail.gmail.com>

On Fri, 2016-12-09 at 14:57 +0100, David Herrmann wrote:
> Despite all of this I still see no reason why a driver could not
> expose the static, real frambuffers via private ioctls. You can get
> all your fancy acceleration that way. Then fix user-space to use this
> API. If enough drivers end up with something similar, move it into the
> core. Just like we always do in DRM.

I don't care so much about userspace in my specific use case, more
about fbcon, which I think can be solved without too many hoops.

As for FB objects, my thinking is we could just use
unmap_mapping_ranges() to effectively change the mapping under the hood
of the app so it alternatively maps a bit of fb or a bit of memory...

Cheers,
Ben.

  parent reply	other threads:[~2016-12-09 20:30 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-23  8:03 [RFC PATCH 0/3] staging: remove fbdev drivers Tomi Valkeinen
2016-11-23  8:03 ` [RFC PATCH 1/3] staging: remove xgifb Tomi Valkeinen
2016-11-23  8:03 ` [RFC PATCH 2/3] staging: remove sm750fb Tomi Valkeinen
2016-11-23  8:03 ` [RFC PATCH 3/3] staging: remove fbtft Tomi Valkeinen
2016-11-23 17:26   ` Noralf Trønnes
2016-11-24  8:36     ` Tomi Valkeinen
2016-11-23 20:12   ` Drew Fustini
2016-11-23  8:19 ` [RFC PATCH 0/3] staging: remove fbdev drivers Daniel Vetter
2016-11-23  8:21   ` Tomi Valkeinen
2016-11-23  8:25   ` Geert Uytterhoeven
2016-11-23  8:45     ` Daniel Vetter
2016-11-23  8:52 ` Greg Kroah-Hartman
2016-11-23  9:12   ` Tomi Valkeinen
2016-11-23  9:49     ` Greg Kroah-Hartman
2016-11-23 10:05     ` Thomas Petazzoni
2016-12-22 20:36       ` Andy Shevchenko
2016-12-08 22:00     ` Sudip Mukherjee
2016-12-08  1:01 ` Benjamin Herrenschmidt
2016-12-08  8:01   ` Tomi Valkeinen
2016-12-08 21:23     ` Benjamin Herrenschmidt
2016-12-08 21:43       ` Benjamin Herrenschmidt
2016-12-09  8:13         ` Daniel Vetter
2016-12-13  7:36       ` Gerd Hoffmann
2016-12-08 10:10   ` Daniel Vetter
2016-12-08 12:15     ` Geert Uytterhoeven
2016-12-08 14:02       ` Daniel Vetter
2016-12-08 14:22         ` Geert Uytterhoeven
2016-12-08 14:37           ` Thomas Petazzoni
2016-12-08 14:44             ` Geert Uytterhoeven
2016-12-08 15:21               ` Daniel Vetter
2016-12-08 21:34                 ` Benjamin Herrenschmidt
2016-12-08 21:57                   ` Benjamin Herrenschmidt
2016-12-09  8:34                     ` Daniel Vetter
2016-12-09  8:41                       ` Daniel Vetter
2016-12-09 11:48                         ` Benjamin Herrenschmidt
2016-12-09 13:35                           ` Daniel Vetter
2016-12-09 20:27                             ` Benjamin Herrenschmidt
2016-12-13  7:18                               ` Michel Dänzer
2016-12-09 11:44                       ` Benjamin Herrenschmidt
2016-12-09 12:33                         ` Geert Uytterhoeven
2016-12-09 13:19                         ` Lucas Stach
2016-12-09 13:33                         ` Daniel Vetter
2016-12-09 13:57                           ` David Herrmann
2016-12-09 14:04                             ` Daniel Vetter
2016-12-09 20:29                             ` Benjamin Herrenschmidt [this message]
2016-12-09  8:30                 ` Daniel Vetter
2016-12-08 14:59           ` Jani Nikula
2016-12-08 14:22         ` Daniel Vetter
2016-12-08 21:28     ` Benjamin Herrenschmidt
2016-12-09  0:08       ` Dave Airlie
2016-12-09  8:04         ` Geert Uytterhoeven
2016-12-09 11:40         ` Benjamin Herrenschmidt
2016-12-13  7:33         ` Gerd Hoffmann
2016-12-13 15:17     ` Laurent Pinchart

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