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powerpc/mm: add a helper to populate hugepd

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This patchs adds a subarch helper to populate hugepd.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christophe Leroy
2019-04-26 05:59:45 +00:00
committed by Michael Ellerman
parent 8197af22be
commit 5fb84fec46
4 changed files with 20 additions and 19 deletions
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5
arch/powerpc/include/asm/book3s/64/hugetlb.h
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@@ -100,6 +100,11 @@ static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr,
return hugepd_page(hpd) + idx;
}
static inline void hugepd_populate(hugepd_t *hpdp, pte_t *new, unsigned int pshift)
{
*hpdp = __hugepd(__pa(new) | HUGEPD_VAL_BITS | (shift_to_mmu_psize(pshift) << 2));
}
void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
#endif