// SPDX-License-Identifier: GPL-2.0-only /* * arch/arm/mm/hugetlbpage.c * * Copyright (C) 2012 ARM Ltd. * * Based on arch/x86/include/asm/hugetlb.h and Bill Carson's patches */ #include <linux/init.h> #include <linux/fs.h> #include <linux/mm.h> #include <linux/hugetlb.h> #include <linux/pagemap.h> #include <linux/err.h> #include <linux/sysctl.h> #include <asm/mman.h> #include <asm/tlb.h> #include <asm/tlbflush.h> #include <asm/pgalloc.h> /* * On ARM, huge pages are backed by pmd's rather than pte's, so we do a lot * of type casting from pmd_t * to pte_t *. */ int pud_huge(pud_t pud) { return 0; } int pmd_huge(pmd_t pmd) { return pmd_val(pmd) && !(pmd_val(pmd) & PMD_TABLE_BIT); }