powerpc/mm: Add addr_limit to mm_context and use it to derive max slice index

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In the followup patch, we will increase the slice array size to handle
512TB range, but will limit the max addr to 128TB. Avoid doing
unnecessary computation and avoid doing slice mask related operation
above address limit.

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

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Aneesh Kumar K.V 2017-03-22 09:06:58 +05:30 • committed by Michael Ellerman

parent f6eedbba7a

commit 957b778a16

6 changed files with 32 additions and 11 deletions

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3

arch/powerpc/include/asm/book3s/64/mmu-hash.h

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arch/powerpc/include/asm/book3s/64/mmu.h

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arch/powerpc/kernel/paca.c

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arch/powerpc/kernel/setup-common.c

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arch/powerpc/mm/mmu_context_book3s64.c

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arch/powerpc/mm/slice.c

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