diff options
| author |   Mikita Lipski <mikita.lipski@amd.com> | 2019-11-06 13:11:23 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2020-01-09 18:07:47 -0500 |
| commit | cd82d82cbc0484e47918d3166f356c98f0066db8 (patch) | |
| tree | e27ee723a0813ef1438eddb8f4a77bf3d991ac61 /include/drm | |
| parent | drm/dp_mst: Add DSC enablement helpers to DRM (diff) | |
| download | linux-dev-cd82d82cbc0484e47918d3166f356c98f0066db8.tar.xz linux-dev-cd82d82cbc0484e47918d3166f356c98f0066db8.zip | |
drm/dp_mst: Add branch bandwidth validation to MST atomic check
[why]
Adding PBN attribute to drm_dp_vcpi_allocation structure to
keep track of how much bandwidth each Port requires.
Adding drm_dp_mst_atomic_check_bw_limit to verify that
state's bandwidth needs doesn't exceed available bandwidth.
The funtion is called in drm_dp_mst_atomic_check after
drm_dp_mst_atomic_check_topology_state to fully verify that
the proposed topology is supported.
v2: Fixing some typos and indenting
v3: Return correct error enums if no bw space available
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_dp_mst_helper.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h index 14ccda19d9cc..d940f45c7637 100644 --- a/include/drm/drm_dp_mst_helper.h +++ b/include/drm/drm_dp_mst_helper.h @@ -502,6 +502,7 @@ struct drm_dp_payload { struct drm_dp_vcpi_allocation { struct drm_dp_mst_port *port; int vcpi; + int pbn; bool dsc_enabled; struct list_head next; }; |