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powerpc/mm/hugetlb: Allow runtime allocation of 16G.

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Now that we have GIGANTIC_PAGE enabled on powerpc, use this for 16G hugepages
with hash translation mode. Depending on the total system memory we have, we may
be able to allocate 16G hugepages runtime. This also remove the hugetlb setup
difference between hash/radix translation mode.

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 2017-07-28 10:31:27 +05:30 committed by Michael Ellerman
parent 79cc38ded1
commit 4ae279c2c9
1 changed files with 1 additions and 3 deletions
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4
arch/powerpc/include/asm/book3s/64/hugetlb.h
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@ -54,9 +54,7 @@ static inline pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
#ifdef CONFIG_ARCH_HAS_GIGANTIC_PAGE
static inline bool gigantic_page_supported(void)
{
if (radix_enabled())
return true;
return false;
return true;
}
#endif