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From: Jon Smirl <jonsmirl@gmail.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: "Dave Airlie" <airlied@linux.ie>,
	"Felix Kühling" <fxkuehl@gmx.de>,
	"DRI Devel" <dri-devel@lists.sourceforge.net>,
	lkml <linux-kernel@vger.kernel.org>,
	"Linus Torvalds" <torvalds@osdl.org>
Subject: Re: radeon-pre-2
Date: Mon, 13 Sep 2004 12:28:27 -0400	[thread overview]
Message-ID: <9e47339104091309281c4e6fb7@mail.gmail.com> (raw)
In-Reply-To: <1095087860.14582.37.camel@localhost.localdomain>

Doesn't the base platform need to be designed to also treat individual
heads as resources?

fbdev only sets the mode on a single head. My cards have more that one
head. When I tried adding mode setting to DRM so that I could handle
my other heads there was a big uproar that fbdev owns mode setting and
that code shouldn't be duplicated. Making fbdev support more than one
head means that it's API has to be redesigned. DRM doesn't have a mode
API so one can be designed from scratch.

In a two head system with simultaneous users, one using fbdev console
and the other playing a 3D game, how is this locking thing going to
work on a process swap basis? Even though we don't have the code for
this today the architecture needs to be designed for it. The reason
you can't do this today is because the kernel level drivers won't
allow it, you can do this currently from the X server.

Heads need to stay in an "unassigned state" until someone logs in on
them. This allows a head to issue a request for "merged fb" mode and
take over the other head. This may require some creativity for drawing
the log in prompts.

Don't forget about SAK and drawing prompts that can't be spoofed.

-- 
Jon Smirl
jonsmirl@gmail.com

  reply	other threads:[~2004-09-13 16:32 UTC|newest]

Thread overview: 101+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <E3389AF2-0272-11D9-A8D1-000A95F07A7A@fs.ei.tum.de>
     [not found] ` <DA459966-02B9-11D9-A8D1-000A95F07A7A@fs.ei.tum.de>
     [not found]   ` <9e47339104090917353554a586@mail.gmail.com>
     [not found]     ` <Pine.LNX.4.58.0409100209100.32064@skynet>
     [not found]       ` <9e47339104090919015b5b5a4d@mail.gmail.com>
     [not found]         ` <20040910153135.4310c13a.felix@trabant>
     [not found]           ` <9e47339104091008115b821912@mail.gmail.com>
     [not found]             ` <1094829278.17801.18.camel@localhost.localdomain>
     [not found]               ` <9e4733910409100937126dc0e7@mail.gmail.com>
     [not found]                 ` <1094832031.17883.1.camel@localhost.localdomain>
2004-09-10 17:22                   ` radeon-pre-2 Jon Smirl
2004-09-10 17:04                     ` radeon-pre-2 Alan Cox
2004-09-10 18:40                       ` radeon-pre-2 Jon Smirl
2004-09-10 22:19                         ` radeon-pre-2 Dave Airlie
2004-09-10 22:00                           ` radeon-pre-2 Alan Cox
2004-09-10 23:24                             ` radeon-pre-2 Dave Airlie
2004-09-11  7:40                               ` radeon-pre-2 Geert Uytterhoeven
2004-09-11  8:42                               ` radeon-pre-2 Keith Whitwell
2004-09-11 13:59                               ` radeon-pre-2 Alan Cox
2004-09-11  0:47                             ` radeon-pre-2 Vladimir Dergachev
2004-09-11  8:43                               ` radeon-pre-2 Keith Whitwell
2004-09-11 12:23                                 ` radeon-pre-2 Mike Mestnik
2004-09-11 15:39                                 ` radeon-pre-2 Vladimir Dergachev
2004-09-11 14:14                               ` radeon-pre-2 Alan Cox
2004-09-11  0:50                             ` radeon-pre-2 Dave Airlie
2004-09-11  3:30                               ` radeon-pre-2 Michel Dänzer
2004-09-11  5:19                                 ` radeon-pre-2 Dave Airlie
2004-09-11  6:12                                   ` radeon-pre-2 Michel Dänzer
2004-09-11  7:11                                     ` radeon-pre-2 Vladimir Dergachev
2004-09-11 14:36                                       ` radeon-pre-2 Alan Cox
2004-09-11 15:53                                         ` radeon-pre-2 Vladimir Dergachev
2004-09-11 15:14                                           ` radeon-pre-2 Alan Cox
2004-09-11 17:10                                             ` radeon-pre-2 Vladimir Dergachev
2004-09-11 16:20                                               ` radeon-pre-2 Alan Cox
2004-09-11 17:49                                                 ` radeon-pre-2 Vladimir Dergachev
2004-09-11 17:59                                                   ` radeon-pre-2 Jon Smirl
2004-09-11 18:05                                                     ` radeon-pre-2 Vladimir Dergachev
2004-09-11 18:09                                                       ` radeon-pre-2 Jon Smirl
2004-09-12  1:55                                             ` radeon-pre-2 Mike Mestnik
2004-09-11  9:20                                   ` radeon-pre-2 Antonino A. Daplas
2004-09-11 14:40                                     ` radeon-pre-2 Alan Cox
2004-09-11 16:34                                     ` radeon-pre-2 Jon Smirl
2004-09-11 14:33                                   ` radeon-pre-2 Alan Cox
2004-09-11 16:46                                     ` radeon-pre-2 Jon Smirl
2004-09-11 16:21                                       ` radeon-pre-2 Alan Cox
2004-09-11 17:27                                         ` radeon-pre-2 Jon Smirl
2004-09-13 11:40                                           ` radeon-pre-2 Keith Whitwell
2004-09-11 19:10                                         ` radeon-pre-2 Hamie
2004-09-11 23:20                                           ` radeon-pre-2 Alan Cox
2004-09-12  9:13                                             ` radeon-pre-2 Geert Uytterhoeven
2004-09-12 11:36                                             ` radeon-pre-2 Hamie
2004-09-12 17:31                                               ` radeon-pre-2 Alan Cox
2004-09-11 16:23                                       ` radeon-pre-2 Alan Cox
2004-09-11 14:25                               ` radeon-pre-2 Alan Cox
2004-09-12 22:42                                 ` radeon-pre-2 Dave Airlie
2004-09-12 23:03                                   ` radeon-pre-2 Linus Torvalds
2004-09-13  0:27                                   ` radeon-pre-2 Michel Dänzer
2004-09-13  0:45                                     ` radeon-pre-2 Vladimir Dergachev
2004-09-13  0:52                                       ` radeon-pre-2 Michel Dänzer
2004-09-13 14:52                                         ` radeon-pre-2 Vladimir Dergachev
2004-09-13 13:57                                           ` radeon-pre-2 Alan Cox
2004-09-13 15:20                                             ` radeon-pre-2 Vladimir Dergachev
2004-09-13 15:07                                               ` radeon-pre-2 Alan Cox
2004-09-13 15:20                                           ` radeon-pre-2 Linus Torvalds
2004-09-13 19:21                                             ` radeon-pre-2 Alex Deucher
2004-09-13 20:42                                               ` radeon-pre-2 David Bronaugh
2004-09-13 21:57                                                 ` radeon-pre-2 Alex Deucher
2004-09-13 16:26                                           ` radeon-pre-2 Michel Dänzer
2004-09-13  6:05                                       ` radeon-pre-2 Alex Deucher
2004-09-13 16:29                                         ` radeon-pre-2 Michel Dänzer
2004-09-13  6:41                                   ` radeon-pre-2 Arjan van de Ven
2004-09-13 11:26                                   ` radeon-pre-2 Alan Cox
2004-09-13 15:06                                     ` radeon-pre-2 Jon Smirl
2004-09-13 15:04                                       ` radeon-pre-2 Alan Cox
2004-09-13 16:28                                         ` Jon Smirl [this message]
2004-09-13 16:43                                           ` radeon-pre-2 Alan Cox
2004-09-13 18:11                                             ` radeon-pre-2 Jon Smirl
2004-09-13 18:49                                               ` radeon-pre-2 Jesse Barnes
2004-09-13 22:17                                           ` radeon-pre-2 Antonino A. Daplas
2004-09-13 17:50                                         ` radeon-pre-2 Jon Smirl
2004-09-14 10:27                                           ` radeon-pre-2 Alan Cox
2004-09-11  8:38                             ` radeon-pre-2 Keith Whitwell
2004-09-10 23:10                           ` radeon-pre-2 Jon Smirl
2004-09-10 22:17                             ` radeon-pre-2 Alan Cox
2004-09-11 12:27                           ` radeon-pre-2 Christoph Hellwig
2004-09-11 12:49                             ` radeon-pre-2 Mike Mestnik
2004-09-11 16:45                               ` radeon-pre-2 Christoph Hellwig
2004-09-11 16:11                             ` radeon-pre-2 Jon Smirl
2004-09-11 16:45                               ` radeon-pre-2 Christoph Hellwig
2004-09-11 17:02                               ` radeon-pre-2 Linus Torvalds
2004-09-11 16:18                                 ` radeon-pre-2 Alan Cox
2004-09-11 17:49                                   ` radeon-pre-2 Linus Torvalds
2004-09-11 17:13                                 ` radeon-pre-2 Jon Smirl
2004-09-11 16:23                                   ` radeon-pre-2 Alan Cox
2004-09-11 17:41                                   ` radeon-pre-2 Linus Torvalds
2004-09-11 17:57                                   ` radeon-pre-2 Michel Dänzer
2004-09-11 20:29                                   ` radeon-pre-2 Eric Anholt
2004-09-11 21:41                                     ` radeon-pre-2 Jon Smirl
2004-09-11 17:54                                 ` radeon-pre-2 Jon Smirl
2004-09-11 18:13                                   ` radeon-pre-2 Linus Torvalds
2004-09-11 21:02                                     ` radeon-pre-2 Jon Smirl
2004-09-11 21:06                                       ` radeon-pre-2 Christoph Hellwig
2004-09-11 21:37                                         ` radeon-pre-2 Jon Smirl
2004-09-11 23:23                                           ` radeon-pre-2 Alan Cox
2004-09-12  7:12                                           ` radeon-pre-2 Eric Anholt
2004-09-12  0:21                                     ` radeon-pre-2 Jon Smirl
2004-09-12  0:28                                       ` radeon-pre-2 Linus Torvalds
2004-09-12 23:53                                         ` radeon-pre-2 Dave Airlie
2004-09-11 18:17                                   ` radeon-pre-2 Vladimir Dergachev
2004-09-10 17:12                     ` radeon-pre-2 Alan Cox
     [not found]           ` <1094853894.18235.17.camel@localhost.localdomain>
2004-09-11  2:20             ` radeon-pre-2 Jon Smirl

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