[Mesa-dev] i965: Resource Streamer HW-binding tables

[Abdiel Janulgue]

I've decided to split my gather constants work into even smaller chunks
to make it easier for reviewers which in turn makes it easier to merge.
First in this patch series enables hardware-generated binding tables
which is required for gather constants[*] to work.

Chances since previous posting are basically clarifications in the
comments in the binding table pool size and magic numbers used in the
start offsets of the binding table pool.

[*] http://lists.freedesktop.org/archives/mesa-dev/2015-April/082991.html