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Revert "Revert "drm/amd/display: Implement zpos property""

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This reverts commit e2066eb4ef.

The problematic IGT test case (i.e. kms_atomic@plane-immutable-zpos) has
been fixed as of commit cb77add45011 ("tests/kms_atomic: remove zpos <
N-planes assert") to the IGT repo. So, reintroduce the reverted code.

Link: cb77add450
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hamza Mahfooz 2023-08-29 07:27:15 -04:00 • committed by Alex Deucher
parent bf227a4f05
commit fe320639c1
1 changed files with 9 additions and 0 deletions
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9
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
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@ -1469,6 +1469,15 @@ int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm,
drm_plane_create_blend_mode_property(plane, blend_caps);
}
if (plane->type == DRM_PLANE_TYPE_PRIMARY) {
drm_plane_create_zpos_immutable_property(plane, 0);
} else if (plane->type == DRM_PLANE_TYPE_OVERLAY) {
unsigned int zpos = 1 + drm_plane_index(plane);
drm_plane_create_zpos_property(plane, zpos, 1, 254);
} else if (plane->type == DRM_PLANE_TYPE_CURSOR) {
drm_plane_create_zpos_immutable_property(plane, 255);
}
if (plane->type == DRM_PLANE_TYPE_PRIMARY &&
plane_cap &&
(plane_cap->pixel_format_support.nv12 ||