When GMEM save is not performed, the events to reuse shader space can get dropped. This make the CP block to wait indefinitely causing a hang. To unblock this, issue a packet to set shader bases. This applies only to A20x/220 GPU. CRs-fixed: 365465 Change-Id: I3ea6a58821b238706f167845380370d5bd19c4b3 Signed-off-by: Ranjhith Kalisamy <ranjhith@codeaurora.org>