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>
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