[PATCH V2 04/68] powerpc/mm: Use big endian page table for book3s 64
Michael Ellerman
mpe at ellerman.id.au
Fri Apr 22 21:01:58 AEST 2016
On Sat, 2016-04-09 at 11:43 +0530, Aneesh Kumar K.V wrote:
> This enables us to share the same page table code for
> both radix and hash.
To be clear, only 64-bit hash.
In theory there's no reason we can't *always* mark the page tables as BE, after
all everything other than the new ppc64le systems are BE.
But looking at it, that will cause knock-on effects in a few places. So we
won't do it now. But it would be a good clean-up in the medium term I think. It
would get us back to a single pgtable-types.h.
> Radix use a hardware defined big endian page table
So everyone keeps telling me :)
Where is this specified? I can't find it in the ISA. But I must be searching
for the wrong words.
cheers
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