drm/i915: Reject async flips with bigjoiner

From Ville Syrjala
7d09c84df5ab9e18464a2f048e393a7860a043e9 in linux-6.1.y/6.1.70
88a173e5dd05e788068e8fa20a8c37c44bd8f416 in mainline linux

diff --git a/sys/dev/pci/drm/i915/display/intel_display.c b/sys/dev/pci/drm/i915/display/intel_display.c
index a6bbf26..cab50df 100644 (file)
--- a/sys/dev/pci/drm/i915/display/intel_display.c
+++ b/sys/dev/pci/drm/i915/display/intel_display.c
@@ -6481,6 +6481,17 @@ static int intel_async_flip_check_uapi(struct intel_atomic_state *state,
                return -EINVAL;
        }
 
+       /*
+        * FIXME: Bigjoiner+async flip is busted currently.
+        * Remove this check once the issues are fixed.
+        */
+       if (new_crtc_state->bigjoiner_pipes) {
+               drm_dbg_kms(&i915->drm,
+                           "[CRTC:%d:%s] async flip disallowed with bigjoiner\n",
+                           crtc->base.base.id, crtc->base.name);
+               return -EINVAL;
+       }
+
        for_each_oldnew_intel_plane_in_state(state, plane, old_plane_state,
                                             new_plane_state, i) {
                if (plane->pipe != crtc->pipe)