diff options
| author | Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> | 2022-06-20 23:37:07 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-07-05 23:12:22 +0300 |
| commit | 97ca308925a50aa80711ccfaf814fa3898374862 (patch) | |
| tree | 9447c589c1888d7350a0aa8f1c50f620670f9630 /drivers/gpu/drm/amd/display/dc/dc_stream.h | |
| parent | a5eeb70de411ef8b1cf5d97806ed6769b84be872 (diff) | |
| download | linux-97ca308925a50aa80711ccfaf814fa3898374862.tar.xz | |
drm/amd/display: Add minimal pipe split transition state
[WHY?]
When adding/removing a plane to some configurations, unsupported pipe
programming can occur when moving to a new plane. Such cases include pipe
split on multi-display, with MPO, and/or ODM.
[HOW?]
Add a safe transistion state that minimizes pipe usage before programming
new configuration. When adding a plane, the current state has the least
pipes required so it is applied without splitting. This must be applied
prior to updating the plane_state for seamless transition. When removing a
plane, the new state has the least pieps required so it is applied without
splitting.
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_stream.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_stream.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h index 1820c19d14d8..2a2f719587ee 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_stream.h +++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h @@ -324,6 +324,9 @@ bool dc_is_stream_scaling_unchanged( struct dc_stream_state *old_stream, struct dc_stream_state *stream); /* + * Setup stream attributes if no stream updates are provided + * there will be no impact on the stream parameters + * * Set up surface attributes and associate to a stream * The surfaces parameter is an absolute set of all surface active for the stream. * If no surfaces are provided, the stream will be blanked; no memory read. @@ -332,8 +335,23 @@ bool dc_is_stream_scaling_unchanged( * After this call: * Surfaces attributes are programmed and configured to be composed into stream. * This does not trigger a flip. No surface address is programmed. + * */ +bool dc_update_planes_and_stream(struct dc *dc, + struct dc_surface_update *surface_updates, int surface_count, + struct dc_stream_state *dc_stream, + struct dc_stream_update *stream_update); +/* + * Set up surface attributes and associate to a stream + * The surfaces parameter is an absolute set of all surface active for the stream. + * If no surfaces are provided, the stream will be blanked; no memory read. + * Any flip related attribute changes must be done through this interface. + * + * After this call: + * Surfaces attributes are programmed and configured to be composed into stream. + * This does not trigger a flip. No surface address is programmed. + */ void dc_commit_updates_for_stream(struct dc *dc, struct dc_surface_update *srf_updates, int surface_count, |