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- // 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>
- /*
- * 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);
- }
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