drm/radeon/kms: Fix chremap setup on RV770 CE

CE variant requires a different chremap setup. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=35472 Signed-off-by: Alex Deucher <[email protected]> Cc: [email protected] Signed-off-by: Dave Airlie <[email protected]>
td0s · Jun 30, 2011 · daf54f1 · daf54f1
1 parent 0e90ed0
commit daf54f1
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
@@ -575,6 +575,12 @@ static void rv770_program_channel_remap(struct radeon_device *rdev)
 	else
 		tcp_chan_steer = 0x00fac688;
 
+	/* RV770 CE has special chremap setup */
+	if (rdev->pdev->device == 0x944e) {
+		tcp_chan_steer = 0x00b08b08;
+		mc_shared_chremap = 0x00b08b08;
+	}
+
 	WREG32(TCP_CHAN_STEER, tcp_chan_steer);
 	WREG32(MC_SHARED_CHREMAP, mc_shared_chremap);
 }