From: David Mosberger <davidm@napali.hpl.hp.com>
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Message-ID: <16064.5964.342357.501507@napali.hpl.hp.com>
Date: Mon, 12 May 2003 14:51:08 -0700
To: Michel =?ISO-8859-1?Q?D=E4nzer?= <michel@daenzer.net>
Cc: davidm@hpl.hp.com, Dave Jones <davej@codemonkey.org.uk>,
       linux-kernel@vger.kernel.org, dri-devel@lists.sourceforge.net
Subject: Re: Improved DRM support for cant_use_aperture platforms
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  Michel> Hmm, isn't there a way to make it work with older kernels as
  Michel> well?  For reference, we've been using
  Michel> http://www.penguinppc.org/~daenzer/DRI/drm-ioremapagp.diff
  Michel> by Benjamin Herrenschmidt for a while for Apple UniNorth
  Michel> northbridges.

It should be possible to add vmap() and vunmap() to kernel/vmalloc.c
on older kernels.  I think those are the only dependencies (apart from
PAGE_AGP, which is taken care of by the latest patch).

  Michel> I was hoping to replace it with a cleaner solution like
  Michel> yours.

Is there someone else on this list who would be able to look into
backporting vmap()/vunmap() to 2.4?  I don't use 2.4 with any
regularity anymore, but I suppose if nobody else is interested, I
could look into it.

  Michel> Anyway, after applying your second patch, things looked much
  Michel> better, and the attached patch against the DRI CVS trunk
  Michel> builds without warnings here.

Great!  Does this mean that next time Linus does a pull he'll pick up
this stuff?

	--david
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