From: Otto Solares <solca@guug.org>
To: "Michel Dänzer" <michel@daenzer.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Linux Frame Buffer Device Development
<linux-fbdev-devel@lists.sourceforge.net>
Subject: Re: [PATCH] neofb patches
Date: Wed, 28 Apr 2004 10:37:30 -0600 [thread overview]
Message-ID: <20040428163730.GA24448@guug.org> (raw)
In-Reply-To: <1083147416.18416.24.camel@thor.asgaard.local>
On Wed, Apr 28, 2004 at 12:16:56PM +0200, Michel Dänzer wrote:
> On Wed, 2004-04-28 at 09:08, Otto Solares wrote:
> >
> > I like the fbdev abstraction but it has too many limitations:
>
> [...]
>
> > - It dangerously coexists currently with the DRM queues and
> > SAREA areas.
>
> How does a DRM SAREA matter to a framebuffer device?
It matters as long as the SAREA have a hardware lock
to synchronize access to the hardware. That lock must
be owned by a single entity in the kernel, or at least
the fbdev drivers must be aware of that lock, it would
be more simple if the fbdev drivers take care of it being
the single entity in the kernel taking care of the
hardware.
> > Both must merge in fbdev.
>
> I agree that they should cooperate properly, but I don't see how it
> follows that they must merge.
DRM and fbdev must merge so i repeat: just a single
kernel entity should own FIFO queues, shared locks,
DMA, the framebuffer, IO registers, interrupts, etc.
-otto
-------------------------------------------------------
This SF.Net email is sponsored by: Oracle 10g
Get certified on the hottest thing ever to hit the market... Oracle 10g.
Take an Oracle 10g class now, and we'll give you the exam FREE.
http://ads.osdn.com/?ad_id=3149&alloc_id=8166&op=click
next prev parent reply other threads:[~2004-04-28 16:37 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
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 [this message]
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20040428163730.GA24448@guug.org \
--to=solca@guug.org \
--cc=benh@kernel.crashing.org \
--cc=linux-fbdev-devel@lists.sourceforge.net \
--cc=michel@daenzer.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).