[Mesa-dev] radeonsi htile (aka HyperZ) support v3

[Andreas Hartmetz]

Another attempt at patch 3.
I've picked Marek's suggestion 1, do it like CB_TARGET_MASK.
The other option would probably be a lot less code but also a bit more
"ad hoc" because it relies on the fact that state is only emitted
just before drawing anyway (right?).

I do not quite have the hang of git-send-email yet, hopefully using
the right In-Reply-To header will make it work well enough.