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-rw-r--r--arch/powerpc/mm/hugetlbpage.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index f0b97d4f4387..1816b965a142 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -742,8 +742,11 @@ static int __init add_huge_page_size(unsigned long long size)
* Hash: 16M and 16G
*/
if (radix_enabled()) {
- if (mmu_psize != MMU_PAGE_2M)
- return -EINVAL;
+ if (mmu_psize != MMU_PAGE_2M) {
+ if (cpu_has_feature(CPU_FTR_POWER9_DD1) ||
+ (mmu_psize != MMU_PAGE_1G))
+ return -EINVAL;
+ }
} else {
if (mmu_psize != MMU_PAGE_16M && mmu_psize != MMU_PAGE_16G)
return -EINVAL;