From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Alex Stewart <alex@foogod.com>,
James Simmons <jsimmons@infradead.org>,
Linux Frame Buffer Device Development
<linux-fbdev-devel@lists.sourceforge.net>
Subject: Re: [PATCH] neofb patches
Date: Tue, 27 Apr 2004 20:12:02 +1000 [thread overview]
Message-ID: <1083060721.16473.7.camel@gaston> (raw)
In-Reply-To: <Pine.GSO.4.58.0404271047520.14434@waterleaf.sonytel.be>
> It's used to indicate that the frame buffer device uses hardware acceleration
> for rectangle fill/copy and imageblit.
>
> It must be explicitly disabled before a user space application can mmap the
> MMIO registers to do its own hardware acceleration, to avoid accelerator access
> conflicts.
I think we should stick to KD_TEXT/KD_GRAPHICS for who owns the engine.
I don't think fbdev should expose any "acclerated" API to userland, that
is a hopeless goal and will lead to nothing. We need some arbitration
layer at one point between whatever accel stuff we use (DRI, userland
accel library) and somebody changing mode though. Lots of stuffs I've
tried to figure out and didn't end up with anything reasonable yet, lack
of time doesn't help...
Ben.
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next prev parent reply other threads:[~2004-04-27 10:17 UTC|newest]
Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-21 1:14 [PATCH] neofb patches Alex Stewart
2004-04-21 17:47 ` James Simmons
2004-04-21 19:10 ` Antonino A. Daplas
2004-04-22 8:09 ` Geert Uytterhoeven
2004-04-23 23:27 ` James Simmons
2004-04-23 16:53 ` Alex Stewart
2004-04-23 20:03 ` James Simmons
2004-04-23 18:35 ` James Simmons
2004-04-23 19:54 ` James Simmons
2004-04-22 3:18 ` Alex Stewart
2004-04-22 20:57 ` James Simmons
2004-04-23 4:03 ` Alex Stewart
2004-04-23 6:43 ` Alex Stewart
2004-04-23 23:00 ` James Simmons
2004-04-24 3:15 ` [Linux-fbdev-devel] " Randy.Dunlap
2004-04-24 7:08 ` Alex Stewart
2004-04-25 3:10 ` [Linux-fbdev-devel] " James Simmons
2004-04-25 3:09 ` James Simmons
2004-04-24 17:29 ` Alex Stewart
2004-04-25 0:55 ` James Simmons
2004-04-26 18:12 ` Alex Stewart
2004-04-27 0:11 ` James Simmons
2004-04-27 1:15 ` Alex Stewart
2004-04-27 8:49 ` Geert Uytterhoeven
2004-04-27 10:12 ` Benjamin Herrenschmidt [this message]
2004-04-27 20:25 ` James Simmons
2004-04-27 22:48 ` John Zielinski
2004-04-27 23:10 ` Benjamin Herrenschmidt
2004-04-27 23:21 ` James Simmons
2004-04-27 23:25 ` Benjamin Herrenschmidt
2004-04-27 23:46 ` John Zielinski
2004-04-27 23:50 ` Benjamin Herrenschmidt
2004-04-28 0:38 ` John Zielinski
2004-04-28 0:41 ` Benjamin Herrenschmidt
2004-04-28 1:39 ` John Zielinski
2004-04-28 3:17 ` Alex Stewart
2004-04-28 3:18 ` Benjamin Herrenschmidt
2004-04-28 17:02 ` James Simmons
2004-04-28 4:36 ` John Zielinski
2004-04-28 4:56 ` Alex Stewart
2004-04-28 6:59 ` John Zielinski
2004-04-28 8:26 ` Geert Uytterhoeven
2004-04-28 22:00 ` John Zielinski
2004-04-28 0:29 ` Otto Solares
2004-04-28 0:54 ` Antonino A. Daplas
2004-04-28 1:15 ` Otto Solares
2004-04-28 1:21 ` John Zielinski
2004-04-28 16:53 ` James Simmons
2004-04-28 0:23 ` Otto Solares
2004-04-28 0:20 ` Otto Solares
2004-04-28 0:36 ` Benjamin Herrenschmidt
2004-04-28 7:08 ` Otto Solares
2004-04-28 8:27 ` Geert Uytterhoeven
2004-04-28 10:16 ` Michel Dänzer
2004-04-28 16:37 ` Otto Solares
2004-04-28 16:50 ` James Simmons
2004-04-28 22:26 ` Michel Dänzer
2004-04-28 23:42 ` Benjamin Herrenschmidt
2004-04-28 23:59 ` James Simmons
2004-04-29 1:06 ` Otto Solares
2004-04-29 1:20 ` Benjamin Herrenschmidt
2004-04-29 16:56 ` James Simmons
2004-04-29 21:57 ` Benjamin Herrenschmidt
2004-04-30 15:06 ` Ville Syrjälä
2004-04-30 16:50 ` James Simmons
2004-05-01 0:40 ` Otto Solares
2004-05-06 19:28 ` Mobility M1 refresh code problem 2.4.26? Richard Smith
2004-05-06 19:57 ` Mikael Eriksson
2004-05-06 20:35 ` Richard Smith
2004-05-06 20:42 ` Geert Uytterhoeven
2004-05-06 21:12 ` Richard Smith
2004-05-07 7:57 ` Mikael Eriksson
2004-05-07 14:11 ` Richard Smith
2004-05-07 15:34 ` Mikael Eriksson
2004-05-07 19:42 ` Richard Smith
2004-05-07 23:11 ` Mikael Eriksson
2004-04-29 8:32 ` [PATCH] neofb patches Geert Uytterhoeven
2004-04-29 1:07 ` Otto Solares
2004-04-29 1:23 ` Benjamin Herrenschmidt
2004-04-29 13:01 ` Michel Dänzer
2004-04-29 17:52 ` Otto Solares
2004-04-29 23:12 ` Michel Dänzer
2004-04-30 1:18 ` Otto Solares
2004-04-30 1:28 ` Michel Dänzer
2004-04-30 21:26 ` Otto Solares
2004-04-28 23:30 ` Benjamin Herrenschmidt
2004-04-28 17:39 ` James Simmons
2004-04-28 18:03 ` Geert Uytterhoeven
2004-04-28 22:46 ` John Zielinski
2004-04-27 8:56 ` Geert Uytterhoeven
2004-04-23 16:07 ` James Simmons
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