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powerpc/mm: Switch book3s 64 with 64K page size to 4 level page table

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This is needed so that we can support both hash and radix page table
using single kernel. Radix kernel uses a 4 level table.

We now use physical address in upper page table tree levels. Even though
they are aligned to their size, for the masked bits we use the
bit positions as per PowerISA 3.0.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Aneesh Kumar K.V 2016-03-01 09:45:13 +05:30 • committed by Michael Ellerman
commit 368ced78e6
8 changed files with 102 additions and 64 deletions
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