drm/amd/display: Refine condition of cursor visibility for pipe-split
[ Upstream commit 63f8bee4 ] [Why] In some scenarios like fullscreen game, major plane is scaled. Then if a upper layer owns the cursor, cursor is invisiable in the majority of the screen. [How] Instead assuming upper plane handles cursor, summing up upper split planes on the same layer. If whole upper plane covers current half/whole pipe plane, disable cursor. Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com> Acked-by: Mikita Lipski <mikita.lipski@amd.com> Signed-off-by: Dale Zhao <dale.zhao@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Stable-dep-of: d29fb7ba ("drm/amd/display: Add NULL plane_state check for cursor disable logic") Signed-off-by: Sasha Levin <sashal@kernel.org>
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