On 10 September 2015 at 15:52, Gerd Hoffmann <kraxel@xxxxxxxxxx> wrote: > Hi, > >> > Dave? Looking at the ioctls they are all fine for render nodes, there >> > isn't anything modesetting related in the device-specific ioctls. >> > >> > Correct? >> > >> Unless I've overdone the coffee this time - modesetting is done via >> the card# node, while render via either card# or renderD#. > > Exactly, thats why anything modesetting-related must be disabled for > renderD#. Looking at the virtio-gpu device-specific ioctls I don't > think there is anything doing modesetting (which we would have to leave > out), so we can apply DRM_RENDER_ALLOW everythere I think. Or maybe > there is a global switch to flip DRM_RENDER_ALLOW for the whole list ... > IMHO the idea of having a 'global' switch sounds quite good, yet there isn't one atm :-( It will be quite useful as we get more render only devices. DRIVER_RENDER doesn't do that unfortunately (which I think was the original assumption), it only instructs drm core to create the renderD# device/node. Hope this clears up any ambiguity from my earlier replies :-) Emil _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
