2 files changed, 19 insertions, 2 deletions

diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c
index 127468785f74..1f94b9affe4b 100644
--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -214,6 +214,12 @@ static int vc4_atomic_commit(struct drm_device *dev,
                 return 0;
         }
 
+        /* We know for sure we don't want an async update here. Set
+         * state->legacy_cursor_update to false to prevent
+         * drm_atomic_helper_setup_commit() from auto-completing
+         * commit->flip_done.
+         */
+        state->legacy_cursor_update = false;
         ret = drm_atomic_helper_setup_commit(state, nonblock);
         if (ret)
                 return ret;
diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c
index 1728fb7d00ba..c3ded0ba0441 100644
--- a/drivers/gpu/drm/vc4/vc4_plane.c
+++ b/drivers/gpu/drm/vc4/vc4_plane.c
@@ -854,7 +854,7 @@ void vc4_plane_async_set_fb(struct drm_plane *plane, struct drm_framebuffer *fb)
 static void vc4_plane_atomic_async_update(struct drm_plane *plane,
                                           struct drm_plane_state *state)
 {
-        struct vc4_plane_state *vc4_state = to_vc4_plane_state(plane->state);
+        struct vc4_plane_state *vc4_state, *new_vc4_state;
 
         if (plane->state->fb != state->fb) {
                 vc4_plane_async_set_fb(plane, state->fb);
@@ -875,7 +875,18 @@ static void vc4_plane_atomic_async_update(struct drm_plane *plane,
         plane->state->src_y = state->src_y;
 
         /* Update the display list based on the new crtc_x/y. */
-        vc4_plane_atomic_check(plane, plane->state);
+        vc4_plane_atomic_check(plane, state);
+
+        new_vc4_state = to_vc4_plane_state(state);
+        vc4_state = to_vc4_plane_state(plane->state);
+
+        /* Update the current vc4_state pos0, pos2 and ptr0 dlist entries. */
+        vc4_state->dlist[vc4_state->pos0_offset] =
+                new_vc4_state->dlist[vc4_state->pos0_offset];
+        vc4_state->dlist[vc4_state->pos2_offset] =
+                new_vc4_state->dlist[vc4_state->pos2_offset];
+        vc4_state->dlist[vc4_state->ptr0_offset] =
+                new_vc4_state->dlist[vc4_state->ptr0_offset];
 
         /* Note that we can't just call vc4_plane_write_dlist()
          * because that would smash the context data that the HVS is