powerpc/mm/radix: Use the right page size for vmemmap mapping

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We use mmu_vmemmap_psize to find the page size for mapping the vmmemap area.
With radix translation, we are suboptimally setting this value to PAGE_SIZE.

We do check for 2M page size support and update mmu_vmemap_psize to use
hugepage size but we suboptimally reset the value to PAGE_SIZE in
radix__early_init_mmu(). This resulted in always mapping vmemmap area with
64K page size.

Fixes: 2bfd65e45e ("powerpc/mm/radix: Add radix callbacks for early init routines")
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Aneesh Kumar K.V 2019-07-01 20:04:42 +05:30 • committed by Michael Ellerman

parent 78c9498885

commit 89a3496e06

1 changed files with 7 additions and 9 deletions

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arch/powerpc/mm/book3s64/radix_pgtable.c

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