i965/cs: Re-emit push constants and cs_state on new batches

We need to re-emit push constansts when a new batch is started since
the push constants are stored in the batch. We also need to re-emit
the MEDIA_INTERFACE_DESCRIPTOR (in brw_cs_state) since it is stored in
the batch.

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
1 file changed