gma: Configure cursor plane
Programming the cursor plane registers is straight forward.
On newer hardware, we also have to account for the cursor in GPU
internal buffer allocation. Fortunately, we have enough resources
for a static configuration that always accounts for a cursor.
Cursors with a location that is off limits are placed off-screen
in the top-left corner, hence, are invisible.
Change-Id: I08ffd81d524e14e464af6e6f6fb5effbd4890d8a
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/23204
Tested-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/common/hw-gfx-gma-config.ads.template b/common/hw-gfx-gma-config.ads.template
index dcfcb4e..dba10aa 100644
--- a/common/hw-gfx-gma-config.ads.template
+++ b/common/hw-gfx-gma-config.ads.template
@@ -56,6 +56,7 @@
Has_Plane_Control : constant Boolean := CPU >= Broxton;
Has_DSP_Linoff : constant Boolean := CPU <= Ivybridge;
Has_PF_Pipe_Select : constant Boolean := CPU in Ivybridge .. Haswell;
+ Has_Cursor_FBC_Control : constant Boolean := CPU >= Ivybridge;
VGA_Plane_Workaround : constant Boolean := CPU = Ivybridge;
Has_GMCH_DP_Transcoder : constant Boolean := CPU = G45;
Has_GMCH_VGACNTRL : constant Boolean := CPU = G45;