On Wed, Jan 25, 2023 at 01:48:47PM +0200, Imre Deak wrote:
Use the correct old/new topology and payload states in intel_mst_disable_dp(). So far drm_atomic_get_mst_topology_state() it used returned either the old state, in case the state was added already earlier during the atomic check phase or otherwise the new state (but the latter could fail, which can't be handled in the enable/disable hooks). After the first patch in the patchset, the state should always get added already during the check phase, so here we can get the old/new states without a failure.
drm_dp_remove_payload() should use time_slots from the old payload state and vc_start_slot in the new one. It should update the new payload states to reflect the sink's current payload table after the payload is removed. Pass the new topology state and the old and new payload states accordingly.
This also fixes a problem where the payload allocations for multiple MST streams on the same link got inconsistent after a few commits, as during payload removal the old instead of the new payload state got updated, so the subsequent enabling sequence and commits used a stale payload state.
Cc: Lyude Paul lyude@redhat.com Cc: stable@vger.kernel.org # 6.1 Signed-off-by: Imre Deak imre.deak@intel.com
drivers/gpu/drm/i915/display/intel_dp_mst.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 5f7bcb5c14847..800fa12a61d93 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -524,10 +524,14 @@ static void intel_mst_disable_dp(struct intel_atomic_state *state, struct intel_dp *intel_dp = &dig_port->dp; struct intel_connector *connector = to_intel_connector(old_conn_state->connector);
- struct drm_dp_mst_topology_state *mst_state =
drm_atomic_get_mst_topology_state(&state->base, &intel_dp->mst_mgr);- struct drm_dp_mst_atomic_payload *payload =
drm_atomic_get_mst_payload_state(mst_state, connector->port);
- struct drm_dp_mst_topology_state *old_mst_state =
drm_atomic_get_old_mst_topology_state(&state->base, &intel_dp->mst_mgr);- struct drm_dp_mst_topology_state *new_mst_state =
drm_atomic_get_new_mst_topology_state(&state->base, &intel_dp->mst_mgr);- struct drm_dp_mst_atomic_payload *old_payload =
drm_atomic_get_mst_payload_state(old_mst_state, connector->port);- struct drm_dp_mst_atomic_payload *new_payload =
drm_atomic_get_mst_payload_state(new_mst_state, connector->port);
old states could be const no?
struct drm_i915_private *i915 = to_i915(connector->base.dev); drm_dbg_kms(&i915->drm, "active links %d\n", @@ -535,8 +539,8 @@ static void intel_mst_disable_dp(struct intel_atomic_state *state, intel_hdcp_disable(intel_mst->connector);
- drm_dp_remove_payload(&intel_dp->mst_mgr, mst_state,
payload, payload);
- drm_dp_remove_payload(&intel_dp->mst_mgr, new_mst_state,
Right that one needs to be 'new' to update the start_slots
Reviewed-by: Ville Syrjälä ville.syrjala@linux.intel.com
old_payload, new_payload);intel_audio_codec_disable(encoder, old_crtc_state, old_conn_state); } -- 2.37.1