drm/amd/display: Avoid using unvalidated tiling_flags and tmz_surface in prepare_planes

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[Why]
We're racing with userspace as the flags could potentially change
from when we acquired and validated them in commit_check.

[How]
We unfortunately can't drop this function in its entirety from
prepare_planes since we don't know the afb->address at commit_check
time yet.

So instead of querying new tiling_flags and tmz_surface use the ones
from the plane_state directly.

While we're at it, also update the force_disable_dcc option based
on the state from atomic check.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Nicholas Kazlauskas 2020-07-28 10:03:10 -04:00 • committed by Alex Deucher

parent 9a81cc6079

commit cf322b49c9

1 changed files with 19 additions and 17 deletions

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

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