Bastian, On Wed, Mar 30, 2016 at 11:18 PM, Aurelien Jarno <[email protected]> wrote: > On 2016-03-30 16:45, Ben Hutchings wrote: >> On Wed, 2016-03-30 at 16:49 +0200, Mathieu Malaterre wrote: >> > Ben, >> > >> > > >> > > I saw that bug report as well. I'm not sure what to do about it - >> > > other distributions were also using 64K pages for 64-bit PowerPC the >> > > last time I looked, and there may be good reasons to do that. >> > Would it be possible for you to dig that for us ? It appears that >> > making nouveau work with 64K page is non-trivial: >> > >> > https://bugs.freedesktop.org/show_bug.cgi?id=94757#c3 >> > >> > Which in turns means most of the userbase with PPC64 (G5 PowerMac) >> > wont be able to use X. >> >> I am not a powerpc porter; Aurelien Jarno is the kernel maintainer >> responsible for it. > > That's correct for ppc64el, but I never signed up for the powerpc port. > >> I don't know about the user base, but I think most of the *development* >> effort and sponsorship of the powerpc ports now comes from IBM, and >> unfortunately they don't care about PowerMacs. > > IBM doesn't really care about the powerpc port either, they do about the > ppc64el port. That said I have tracked the change to 64kB pages to the > following commit: > > | commit aed63a56b189d771116f2d4b8fe10bbec528e6a2 > | Author: Bastian Blank <[email protected]> > | Date: Sat Aug 9 19:42:11 2014 +0000 > | > | * debian/changelog: Update > | * debian/config/kernelarch-powerpc/config-arch-64: Set PPC_64K_PAGES. > | * debian/config/kernelarch-powerpc/config-arch-64-le: Remove overriden > option. > | > | svn path=/dists/trunk/linux/; revision=21721 > > I don't really know what it has been done, so I have Cced Bastian so > that he can comment on that. It's something that can be reverted if > needed I guess.
Could you please share the rational to set PPC64 to 64K pages ? Ref: https://anonscm.debian.org/cgit/kernel/linux.git/commit/?id=aed63a56b189d771116f2d4b8fe10bbec528e6a2 Thanks much.
