We currently treat same slice mask as a same DBuf state and skip updating the Dbuf slices, if we detect that. This is wrong as if we have a multi to single pipe change or vice versa, that would be treated as a same Dbuf state and thus no changes required, so we don't get Mbus updated, causing issues. Solution: check also mbus_join, in addition to slices mask. Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@xxxxxxxxx> --- drivers/gpu/drm/i915/intel_pm.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 00f3dead20ad..804d83486e81 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -8093,7 +8093,8 @@ void intel_dbuf_pre_plane_update(struct intel_atomic_state *state) intel_atomic_get_old_dbuf_state(state); if (!new_dbuf_state || - new_dbuf_state->enabled_slices == old_dbuf_state->enabled_slices) + ((new_dbuf_state->enabled_slices == old_dbuf_state->enabled_slices) + && (new_dbuf_state->joined_mbus == old_dbuf_state->joined_mbus))) return; WARN_ON(!new_dbuf_state->base.changed); @@ -8113,7 +8114,8 @@ void intel_dbuf_post_plane_update(struct intel_atomic_state *state) intel_atomic_get_old_dbuf_state(state); if (!new_dbuf_state || - new_dbuf_state->enabled_slices == old_dbuf_state->enabled_slices) + ((new_dbuf_state->enabled_slices == old_dbuf_state->enabled_slices) + && (new_dbuf_state->joined_mbus == old_dbuf_state->joined_mbus))) return; WARN_ON(!new_dbuf_state->base.changed); -- 2.24.1.485.gad05a3d8e5 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
