drm/vmwgfx: Make sure to update STDU when FB is updated

When a new FB is bound, we have to send an update command otherwise
the new FB may not be shown

Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
index bad31bdf09b6..60ace30246cf 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
@@ -1355,6 +1355,11 @@ vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane,
                 DRM_ERROR("Failed to bind surface to STDU.\n");
         else
                 crtc->primary->fb = plane->state->fb;
+
+        ret = vmw_stdu_update_st(dev_priv, stdu);
+
+        if (ret)
+                DRM_ERROR("Failed to update STDU.\n");
 }