drm/amd/display: Validate dc_plane_info and dc_plane_size in atomic check

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[Why]
Pitch, DCC, rotation and mirroring can result in updates that are not
UPDATE_TYPE_FAST but UPDATE_TYPE_MED instead. DC needs dc_plane_info
and dc_plane_size to make this determination and we aren't currently
passing this into DC during atomic check.

Underflow (visible or non-visible) can occur if we don't validate this
correctly. This also will generally trigger p-state warnings, typically
via the cursor handler when locking.

[How]
Get the framebuffer tiling flags and generate the required structures
for DC in dm_determine_update_type_for_commit.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: David Francis <david.francis@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Nicholas Kazlauskas 2019-08-02 10:31:29 -04:00 • committed by Alex Deucher

parent 3cf7bf2e48

commit 2cc450ceaa

1 changed files with 24 additions and 0 deletions

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drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

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