Re: [PATCH] neofb patches

["Michel Dänzer" <michel@daenzer.net>]

On Fri, 2004-04-30 at 03:18, Otto Solares wrote:
> On Fri, Apr 30, 2004 at 01:12:17AM +0200, Michel D채nzer wrote:
> > On Thu, 2004-04-29 at 19:52, Otto Solares wrote:
> > > On Thu, Apr 29, 2004 at 03:01:13PM +0200, Michel D채nzer wrote:
> > > > On Thu, 2004-04-29 at 03:07, Otto Solares wrote:
> > > > > On Thu, Apr 29, 2004 at 12:26:41AM +0200, Michel D채nzer wrote:
> > > > > 
> > > > > > A small low-level driver could handle this, which both the framebuffer
> > > > > > device and the DRM use. Linus has proposed this approach, and I must say
> > > > > > I like it.
> > > > > 
> > > > > That should be fbdev without fbcon.
> > > > 
> > > > I'm not sure that works: keep in mind that the DRM works on other OSs
> > > > than Linux, and even on Linux some people may want to use the DRM
> > > > without a framebuffer device. Neither should be a problem with a minimal
> > > > base driver which does nothing more than hardware resource management
> > > > and arbitration.
> > > 
> > > Differents OSs have differents sources for DRM kernel side so
> > > that's not a problem nor will affect others OSs than linux.
> > 
> > Nope. Most of the code in the DRI CVS drm module is shared between OSs.
> > Most of the shared code is hardware specific though, so if you change
> > the interface to the hardware, either all the OSs will have to provide
> > the new interface, or the code can no longer be shared, which would get
> > us back to the code duplication horrors. I'd very much like to avoid
> > that.
> 
> I don't see your point, nothing prevents using the shared code,
> the idea is not to change the interface, just to have a single
> graphics layer that handle that same interface.  I know it could be
> a pain to duplicate the fbdev into the cvs drm module, but with
> proper file separations there could live the fbdev's drm code.

I don't see how that can be done without changing the shared code,
effectively un-sharing it. Could just be me though.


-- 
Earthling Michel D채nzer      |     Debian (powerpc), X and DRI developer
Libre software enthusiast    |   http://svcs.affero.net/rm.php?r=daenzer



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