Merge tag 'drm-intel-fixes-2016-05-02' of git://anongit.freedesktop.org/drm-intel...

[deliverable/linux.git] / drivers / gpu / drm / virtio / virtgpu_display.c

diff --git a/drivers/gpu/drm/virtio/virtgpu_display.c b/drivers/gpu/drm/virtio/virtgpu_display.c
index 4854dac87e246e499002b0a71d8706d65ab1a15d..5fd1fd06effc3567dd39740e837c4fdd1a4f59dc 100644 (file)
--- a/drivers/gpu/drm/virtio/virtgpu_display.c
+++ b/drivers/gpu/drm/virtio/virtgpu_display.c
@@ -267,11 +267,23 @@ static int virtio_gpu_crtc_atomic_check(struct drm_crtc *crtc,
        return 0;
 }
 
+static void virtio_gpu_crtc_atomic_flush(struct drm_crtc *crtc,
+                                        struct drm_crtc_state *old_state)
+{
+       unsigned long flags;
+
+       spin_lock_irqsave(&crtc->dev->event_lock, flags);
+       if (crtc->state->event)
+               drm_crtc_send_vblank_event(crtc, crtc->state->event);
+       spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
+}
+
 static const struct drm_crtc_helper_funcs virtio_gpu_crtc_helper_funcs = {
        .enable        = virtio_gpu_crtc_enable,
        .disable       = virtio_gpu_crtc_disable,
        .mode_set_nofb = virtio_gpu_crtc_mode_set_nofb,
        .atomic_check  = virtio_gpu_crtc_atomic_check,
+       .atomic_flush  = virtio_gpu_crtc_atomic_flush,
 };
 
 static void virtio_gpu_enc_mode_set(struct drm_encoder *encoder,