On Tue, Nov 12, 2019 at 10:17:10AM -0800, Yiwei Zhang wrote: > Hi folks, > > What do you think about: > > For the sysfs approach, I'm assuming the upstream vendors still need > > to provide a pair of UMD and KMD, and this ioctl to label the BO is > > kept as driver private ioctl. Then will each driver just define their > > own set of "label"s and the KMD will only consume the corresponding > > ones so that the sysfs nodes won't change at all? Report zero if > > there's no allocation or re-use under a particular "label". To me this looks like a way to abuse the kernel into provide a specific message passing API between process only for GPU. It would be better to use existing kernel/userspace API to pass message between process than add a new one just for a special case. Note that I believe that listing GPU allocation for a process might useful but only if it is a generic thing accross all GPU (for upstream GPU driver we do not care about non upstream). Cheers, Jérôme _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
