[Intel-gfx] [PATCH] drm/i915: allocate & enable MCHBAR if needed
jbarnes at virtuousgeek.org
Wed May 6 12:07:28 PDT 2009
On Wed, 6 May 2009 16:22:52 +0800
Zhenyu Wang <zhenyuw at linux.intel.com> wrote:
> On 2009.04.01 05:23:15 +0800, Jesse Barnes wrote:
> > I noticed on my Eee 901 that the i915 DRM driver wasn't reading the
> > MCHBAR reg at startup time, and so it would disable tiling. For
> > decent performance, especially on an Eee-like platform, tiling is a
> > must. So I put this patch together to allocate MCHBAR space and
> > enable it if necessary.
> > In combination with the pre-965 tiling patches in the tree now, you
> > should see a big performance improvement if you have an affected
> > machine.
> Jesse, what's the status of this one? I also need this on my eeepc.
Was waiting on Andy's test results of Bjorn's generic PNP function.
Looks like things are in good shape so I hope Eric can pick them up.
Jesse Barnes, Intel Open Source Technology Center
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