From: "Antonino A. Daplas" <adaplas@hotpop.com>
To: Jean Delvare <khali@linux-fr.org>,
"Antonino A. Daplas" <adaplas@pol.net>
Cc: linux-fbdev-devel@lists.sourceforge.net,
Andrew Morton <akpm@osdl.org>, Miles Lane <miles.lane@gmail.com>
Subject: Re: Re: 2.6.12-rc1-mm2 -- nvidiafb driver gives black screen
Date: Fri, 15 Apr 2005 11:07:49 +0800 [thread overview]
Message-ID: <200504151107.49810.adaplas@hotpop.com> (raw)
In-Reply-To: <20050414191323.10d7d435.khali@linux-fr.org>
On Friday 15 April 2005 01:13, Jean Delvare wrote:
> Hi Tony,
>
> > This patch will always limit the amount of video RAM to remap at
> > 128 MiB.
>
> I don't much get the idea. What are you trying to prevent?
I'm preventing ioremap failures when the driver tries to remap a large
chunk of the graphics aperture.
>
> 128 MiB seems a rather low limit. Graphics adapters with 256 MiB, 512
> MiB or even 640 MiB exist, and I see little reason why it would stop
> increasing.
For fbcon use, such a large amount of RAM does not help significantly
with performance. Also, nvidiafb cannot use the entire video RAM as
framebuffer space since it's 2D drawing functions are limited by the
clipping coordinates which is set at 0x7fff, x and y, ie, one can only do
blits within the range of 0x0-0x7fff.
Tony
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next prev parent reply other threads:[~2005-04-15 3:08 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <a44ae5cd0503242023233dc23f@mail.gmail.com>
2005-03-25 4:31 ` 2.6.12-rc1-mm2 -- nvidiafb driver gives black screen Andrew Morton
2005-03-26 4:50 ` Miles Lane
2005-03-28 17:12 ` Randy.Dunlap
2005-03-29 0:22 ` Miles Lane
2005-03-29 0:37 ` Randy.Dunlap
2005-03-29 0:56 ` Miles Lane
2005-03-29 1:02 ` Randy.Dunlap
2005-03-29 1:12 ` Miles Lane
2005-03-29 3:01 ` Randy.Dunlap
2005-03-29 9:16 ` Jean Delvare
2005-03-29 1:13 ` Andrew Morton
2005-03-29 3:56 ` Miles Lane
2005-03-29 4:34 ` Randy.Dunlap
2005-03-29 16:25 ` [PATCH] nvidiafb: fix section references Randy.Dunlap
2005-04-14 5:51 ` Re: 2.6.12-rc1-mm2 -- nvidiafb driver gives black screen Antonino A. Daplas
2005-04-14 17:06 ` Jean Delvare
2005-04-15 3:07 ` Antonino A. Daplas
2005-04-14 5:51 ` Antonino A. Daplas
2005-04-14 17:13 ` Jean Delvare
2005-04-14 18:19 ` Miles Lane
2005-04-15 3:07 ` Antonino A. Daplas
2005-04-15 3:07 ` Antonino A. Daplas [this message]
2005-04-16 8:21 ` Miles Lane
2005-04-21 5:51 ` Miles Lane
2005-04-21 16:22 ` Randy.Dunlap
2005-04-21 18:36 ` Randy.Dunlap
2005-04-23 0:03 ` Miles Lane
2005-04-23 0:12 ` Miles Lane
2005-04-24 17:09 ` Miles Lane
2005-04-25 3:21 ` Antonino A. Daplas
2005-04-25 20:31 ` Miles Lane
2005-04-25 20:33 ` Miles Lane
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