vtgpu_resource_flush
vtgpu_resource_flush(sc, 0, 0, sc->vtgpu_fb_info.fb_width,
vtgpu_resource_flush(sc, x, y, width, height);
vtgpu_resource_flush(sc, x, y, width, height);
vtgpu_resource_flush(sc, x1, y1, width, height);
vtgpu_resource_flush(sc, x, y, 1, 1);
error = vtgpu_resource_flush(sc, 0, 0, sc->vtgpu_fb_info.fb_width,
static int vtgpu_resource_flush(struct vtgpu_softc *, uint32_t, uint32_t,