On Thu, Jul 09, 2015 at 04:33:01PM +0300, Ville Syrjälä wrote: > On Thu, Jul 09, 2015 at 03:08:48PM +0200, Daniel Vetter wrote: > > On Thu, Jul 09, 2015 at 08:55:25AM +0900, Gioh Kim wrote: > > > > > > > > > 2015-07-09 오전 7:47에 Dave Airlie 이(가) 쓴 글: > > > >>> > > > >>> > > > >>>Can the various in-kernel GPU drivers benefit from this? If so, wiring > > > >>>up one or more of those would be helpful? > > > >> > > > >> > > > >>I'm sure that other in-kernel GPU drivers can have benefit. > > > >>It must be helpful. > > > >> > > > >>If I was familiar with other in-kernel GPU drivers code, I tried to patch > > > >>them. > > > >>It's too bad. > > > > > > > >I'll bring dri-devel into the loop here. > > > > > > > >ARM GPU developers please take a look at this stuff, Laurent, Rob, > > > >Eric I suppose. > > > > > > I sent a patch, https://lkml.org/lkml/2015/3/24/1182, and my opinion about compaction > > > to ARM GPU developers via Korea ARM branch. > > > I got a reply that they had no time to review it. > > > > > > I hope they're interested to this patch. > > > > i915 gpus would support 64kb and 2mb pages, but we never implemented this. > > I don't think this would fit for gem based drivers since our backing > > storage is shmemfs. So if we want to implement page migration (which we'd > > probably want to make large pages work well) we'd need to pimp shmem to a) > > hand large pages to us b) forward the migrate calls. Probably that means > > we need to build our own gemfs reusing shmemfs code. > > AFAIK there are efforts ongoing to make large pages work with shmem. > > Kirill, IIRC you mentioned that you're were looking into this a while > back? I work in this direction, but don't have anything to show at the moment. Hugh has published his implementation of huge tmpfs back in February: http://lkml.kernel.org/g/alpine.LSU.2.11.1502201941340.14414@eggly.anvils -- Kirill A. Shutemov _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
