This is something the original decoder did, but I didn't bother with
until now. I recently had to debug an Ironlake issue, and wanted to
inspect VS_STATE. So, now it's back.
The other packets in the switch statement are all Gen6/7+, where we
use offsets from dynamic state base address, so we don't need the
gtt_offset subtraction introduced here. We might want to make a
helper for this hack at some point - perhaps when we introduce the
next occurance.
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Kenneth Graunke
32f0dc3a29