On Wed, Jan 06, 2021 at 02:11:37PM +0100, Daniel Pocock wrote: > > We did some more troubleshooting of AMD Radeon issues on ppc64 Small aside: I know you mean ppc64le (because thats all we make anymore), but it confuses me since 'ppc64' is what we called the old big endian 64 bit ppc, which is retired. Can I ask you to please use 'ppc64le' when talking about the current thing? :) > > As with Nouveau, it looks like a change from 64k to 4k page size got it > working again with RX 5700. I suspect it will be similar for RX 6800 if > we can get some of them, they are a good complement for the compute power. > > The issue is page size, not ppc64 > > Vikings[1] in Germany are about to launch their European Talos II > workstations so there will be more users and many will want to try > Fedora as this is the place to get newest versions of stuff. > > How would people feel about making 4k the default page size for > workstation users? > > Given that the default file system, Btrfs, is sensitive to page size and > there are not so many GPUs outside of those vendors mentioned above, I > feel this is a compelling issue. I don't have any great opinion on changing it, but hopefully a few power folks will chime in with thoughts. Would this only need to be changed in the kernel? kevin
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