I think it's not useful though. Think about that, SG display feature is intended to use as less VRAM as possible. Will someone want a display buffer sometimes VRAM, sometimes GTT? Hardly a case to me, and I think it's a waste of effort. That also might explain no driver does that now. Sam On 2018-03-07 12:50 PM, Michel Dänzer wrote: > On 2018-03-07 06:38 PM, Alex Deucher wrote: >> On Wed, Mar 7, 2018 at 12:29 PM, Samuel Li <samuel.li at amd.com> wrote: >>> >>> Why so complicated? If old user space compatibility is required, just use sg_display=0. >> >> It will always just work in that case and we can adjust for the >> optimal scenario by default in all cases without requiring the user to >> set misc parameters to tune their setup that may break in the future >> or hide bugs because a user sets it and forgets it. > > Right. I don't agree it's all that complicated anyway, we do this sort > of thing all the time, it also makes our lives easier down the road. > >
