powerpc/mm: Clear top 16 bits of va only on older cpus

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As per ISA, we need to do this only for architecture version 2.02 and
earlier. This continued to work even for 2.07. But let's not do this for
anything after 2.02. ISA 3.0 requires these top bits to be not cleared.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Aneesh Kumar K.V 2016-07-13 15:05:24 +05:30 • committed by Michael Ellerman

parent e21fc93b70

commit accfad7d0a

3 changed files with 13 additions and 6 deletions

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9

arch/powerpc/include/asm/mmu.h

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4

arch/powerpc/kernel/cputable.c

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6

arch/powerpc/mm/hash_native_64.c

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