From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Andrew Morton <akpm@osdl.org>
Cc: David Eger <eger@theboonies.us>,
Linux Fbdev development list
<linux-fbdev-devel@lists.sourceforge.net>,
Linux Kernel list <linux-kernel@vger.kernel.org>
Subject: Re: Re: FB accel capabilities patch
Date: Thu, 20 May 2004 09:31:01 +1000 [thread overview]
Message-ID: <1085009460.15182.87.camel@gaston> (raw)
In-Reply-To: <20040519030319.1f0e6eec.akpm@osdl.org>
On Wed, 2004-05-19 at 20:03, Andrew Morton wrote:
> David Eger <eger@theboonies.us> wrote:
> >
> > A month or two ago I noticed that the framebuffer console driver doesn't
> > know to do proper framebuffer acceleration in Linux 2.6;
>
> For what fbdev operations will acceleration be used?
Ok, the story is ... fbdevs do have optional accel hooks for copyarea,
rectfill, and imageblit. However, the current fbcon console subsystem
doesn't properly adapt it's drawing techniques based on the accel
capabilities (blit + redraw is more efficient for example when you have
a fast accelerated copyarea, while full redraw is better in other cases,
etc...)
This patch adds "hints" provided by the fbdev to inform fbcon what are
its accel capabilities.
Ben.
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next prev parent reply other threads:[~2004-05-19 23:38 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-19 9:36 FB accel capabilities patch David Eger
2004-05-19 10:03 ` Andrew Morton
2004-05-19 11:14 ` Geert Uytterhoeven
2004-05-19 23:31 ` Benjamin Herrenschmidt [this message]
2004-05-20 15:54 ` [PATCH 1/4] James' fbcon init and con2fb cleanup David Eger
2004-05-20 15:59 ` [PATCH 2/4] FB accel capabilities (core update) David Eger
2004-05-20 16:00 ` [PATCH 1/4] James' fbcon init and con2fb cleanup James Simmons
2004-05-20 16:01 ` [PATCH 3/4] s/FBINFO_FLAG_/FBINFO_/g David Eger
2004-05-20 16:03 ` [PATCH 4/4] radeonfb accel capabilities David Eger
2004-05-19 19:34 ` [Linux-fbdev-devel] FB accel capabilities patch James Simmons
2004-05-19 21:39 ` David Eger
2004-05-19 21:47 ` [Linux-fbdev-devel] " James Simmons
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