Re: [PATCH] Add virtio gpu driver.

Hi,

On 24 March 2015 at 16:07, Gerd Hoffmann kraxel@redhat.com wrote:

+static int virtio_gpu_crtc_page_flip(struct drm_crtc *crtc,

•                                struct drm_framebuffer *fb,
  

•                                struct drm_pending_vblank_event *event,
  

•                                uint32_t flags)
  

+{

•   return -EINVAL;
  

+}

I'm not going to lie, I was really hoping the 5th (?) GPU option for Qemu would support pageflipping. Daniel's comment about conversion to atomic is relevant, but: do you have a mechanism which allows you to post updates (e.g. 'start displaying this buffer now please') that allows you to get events back when they have actually been displayed?

Cheers, Daniel