I'm choosing to shelve this series for now. Please continue along; don't waste
too
much time looking at these patches.
I am concerned by several of the Piglit regressions I've found, and want to
fix those before committing the series. I'll repost when my Piglit results
have less red and black.
By default, HiZ is still disabled. This series causes no Piglit regressions
when HiZ is disabled.
When HiZ *is* enabled, it is now stable enough to run gnome-shell, nexuiz, and
openarena without any artifacts. Mipmapped depth textures, however, are still
broken, as well as many Piglit tests.
