powerpc/mm/slice: Convert slice_mask high slice to a bitmap

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In followup patch we want to increase the va range which will result
in us requiring high_slices to have more than 64 bits. To enable this
convert high_slices to bitmap. We keep the number bits same in this patch
and later change that to higher value

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[mpe: Fold in fix to use bitmap_empty()]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Aneesh Kumar K.V 2017-03-22 09:06:47 +05:30 • committed by Michael Ellerman

parent 6aa59f5162

commit f3207c124e

2 changed files with 81 additions and 46 deletions

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17

arch/powerpc/include/asm/page_64.h

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112

arch/powerpc/mm/slice.c

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