From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt Subject: Re: FB model basic issues (WAS: radeon, apertures & memory mapping) Date: Thu, 17 Mar 2005 10:30:01 +1100 Message-ID: <1111015801.15509.62.camel@gaston> References: <1110837171.5863.16.camel@gaston> <1110838356.4003.548.camel@localhost> <1110839873.5673.41.camel@gaston> <1110862777.4044.592.camel@localhost> <20050315060138.GA13064@sci.fi> <4236C770.8020101@hispeed.ch> <1110907029.4001.624.camel@localhost> <1110942559.24296.107.camel@gaston> <20050316200808.GB6651@sci.fi> <20050316210812.GA19937@sci.fi> Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable In-Reply-To: <20050316210812.GA19937@sci.fi> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: xorg-bounces@lists.freedesktop.org Errors-To: xorg-bounces@lists.freedesktop.org Content-Type: text/plain; charset="iso-8859-1" To: Ville =?ISO-8859-1?Q?Syrj=E4l=E4?= Cc: Linux Fbdev development list , Michel =?ISO-8859-1?Q?D=E4nzer?= , Jon Smirl , xorg@lists.freedesktop.org, Alex Deucher , dri-devel@lists.sourceforge.net On Wed, 2005-03-16 at 23:08 +0200, Ville Syrj=E4l=E4 wrote: > On Wed, Mar 16, 2005 at 03:58:07PM -0500, Alex Deucher wrote: > I haven't seen anyone coming forward with a design/code for the memory=20 > manager. >=20 > In the meantime I'm assuming that people might want to make some use of= =20 > their dualhead cards... Are you aware that with the current fbdev API, there will simply be no working use of dual head ? As soon as somebody will try to do 2 different things on the 2 heads, it will either lockup due to lack of engine arbitration, or have wrong endianness, or whatever ... Ben.