drm: qxl: Atomic phase 3: Wire up atomic page_flip helper

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170227204328.18761-14-krisman@collabora.co.ukSigned-off-by: Gerd Hoffmann <kraxel@redhat.com>

drivers/gpu/drm/qxl/qxl_display.c

@@ -278,55 +278,10 @@ static void qxl_crtc_destroy(struct drm_crtc *crtc)
 	kfree(qxl_crtc);
 }
 
-static int qxl_crtc_page_flip(struct drm_crtc *crtc,
-                              struct drm_framebuffer *fb,
-                              struct drm_pending_vblank_event *event,
-                              uint32_t page_flip_flags)
-{
-	struct drm_device *dev = crtc->dev;
-	struct qxl_device *qdev = dev->dev_private;
-	struct qxl_framebuffer *qfb_src = to_qxl_framebuffer(fb);
-	struct qxl_framebuffer *qfb_old = to_qxl_framebuffer(crtc->primary->fb);
-	struct qxl_bo *bo_old = gem_to_qxl_bo(qfb_old->obj);
-	struct qxl_bo *bo = gem_to_qxl_bo(qfb_src->obj);
-	unsigned long flags;
-	struct drm_clip_rect norect = {
-	    .x1 = 0,
-	    .y1 = 0,
-	    .x2 = fb->width,
-	    .y2 = fb->height
-	};
-	int inc = 1;
-	int one_clip_rect = 1;
-	int ret = 0;
-
-	drm_atomic_set_fb_for_plane(crtc->primary->state, fb);
-
-	bo_old->is_primary = false;
-	bo->is_primary = true;
-
-	ret = qxl_bo_pin(bo, bo->type, NULL);
-	if (ret)
-		return ret;
-
-	qxl_draw_dirty_fb(qdev, qfb_src, bo, 0, 0,
-			  &norect, one_clip_rect, inc);
-
-	if (event) {
-		spin_lock_irqsave(&dev->event_lock, flags);
-		drm_crtc_send_vblank_event(crtc, event);
-		spin_unlock_irqrestore(&dev->event_lock, flags);
-	}
-
-	qxl_bo_unpin(bo);
-
-	return 0;
-}
-
 static const struct drm_crtc_funcs qxl_crtc_funcs = {
 	.set_config = drm_atomic_helper_set_config,
 	.destroy = qxl_crtc_destroy,
-	.page_flip = qxl_crtc_page_flip,
+	.page_flip = drm_atomic_helper_page_flip,
 	.reset = drm_atomic_helper_crtc_reset,
 	.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,