emit_depthbuffer refactor (partial)
emit_depthbuffer refactor part 2
emit_depthbuffer refactor part 3
emit_depthbuffer refactor: move enable_hiz_ss inside do_stuff
emit_depthbuffer refactor: rearrange args to do_stuff
emit_depthbuffer refactor: move depth stall flushes into do_stuff
emit_depthbuffer refactor: modify pre-gen7 state atom to look like gen7
emit_depthbuffer refactor: Virtualize do_stuff
!UPSTREAM: Hacky fix for Gen5 depthstencil-render-miplevels stencil-only test.  TODO: think through, test thoroughly, and document.
De-virtualize brw_blorp_params class
i965/blorp: Convert brw_blorp_mip_info into a C struct
i965/blorp: Convert brw_blorp_surface_info into a C struct
i965/blorp: Convert brw_blorp_coord_transform_params into a C struct
i965/blorp: Convert brw_blorp_wm_push_constants into a C struct
i965/blorp: Convert more stuff to C
Convert more stuff to C
Convert brw_blorp_params into C
Convert more stuff to C
Convert brw_hiz_op_params to C
Convert brw_blorp_blit_params to C