diff options
Diffstat (limited to 'arch/powerpc/include/asm/book3s/64/hugetlb.h')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/hugetlb.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/hugetlb.h b/arch/powerpc/include/asm/book3s/64/hugetlb.h index d9c283f95e05..c62f14d0bec1 100644 --- a/arch/powerpc/include/asm/book3s/64/hugetlb.h +++ b/arch/powerpc/include/asm/book3s/64/hugetlb.h @@ -30,4 +30,24 @@ static inline int hstate_get_psize(struct hstate *hstate) return mmu_virtual_psize; } } + +#define arch_make_huge_pte arch_make_huge_pte +static inline pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma, + struct page *page, int writable) +{ + unsigned long page_shift; + + if (!cpu_has_feature(CPU_FTR_POWER9_DD1)) + return entry; + + page_shift = huge_page_shift(hstate_vma(vma)); + /* + * We don't support 1G hugetlb pages yet. + */ + VM_WARN_ON(page_shift == mmu_psize_defs[MMU_PAGE_1G].shift); + if (page_shift == mmu_psize_defs[MMU_PAGE_2M].shift) + return __pte(pte_val(entry) | _PAGE_LARGE); + else + return entry; +} #endif |