@@ -125,6 +125,26 @@ pte_t *huge_pte_offset(struct mm_struct *mm,
return pte;
}
+unsigned long hugetlb_mask_last_page(struct hstate *h)
+{
+ unsigned long hp_size = huge_page_size(h);
+
+ switch (hp_size) {
+#ifndef __PAGETABLE_PMD_FOLDED
+ case PUD_SIZE:
+ return P4D_SIZE - PUD_SIZE;
+#endif
+ case PMD_SIZE:
+ return PUD_SIZE - PMD_SIZE;
+ case napot_cont_size(NAPOT_CONT64KB_ORDER):
+ return PMD_SIZE - napot_cont_size(NAPOT_CONT64KB_ORDER);
+ default:
+ break;
+ }
+
+ return 0UL;
+}
+
static pte_t get_clear_contig(struct mm_struct *mm,
unsigned long addr,
pte_t *ptep,
When NAPOT is enabled, a new hugepage size is available and then we need to make hugetlb_mask_last_page() aware of that. Fixes: 82a1a1f3bfb6 ("riscv: mm: support Svnapot in hugetlb page") Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> --- arch/riscv/mm/hugetlbpage.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)