Re: [RFC] Implementing HUGEPAGE on MPC 8xx

2016-06-08 Thread Scott Wood
On Wed, 2016-06-08 at 09:03 +0200, Christophe Leroy wrote: > In see in the current ppc kernel that for PPC32, SYS_SUPPORTS_HUGETLBFS > is selected only if we have PHYS_64BIT. > What is the reason for only implementing HUGETLBFS with 64 bits phys > addresses ? That's not for PPC32 in general -- i

Re: [RFC] Implementing HUGEPAGE on MPC 8xx

2016-06-08 Thread Dan Malek
Hello Christophe. I’m surprised there is still any interest in this processor family :) On Jun 8, 2016, at 12:03 AM, Christophe Leroy wrote: > MPC 8xx has several page sizes: 4k, 16k, 512k and 8M. > Today, 4k and 16k sizes are implemented as normal page sizes and 8M is used > for mapping line