cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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hugetlbpage.c (678B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * arch/arm/mm/hugetlbpage.c
      4 *
      5 * Copyright (C) 2012 ARM Ltd.
      6 *
      7 * Based on arch/x86/include/asm/hugetlb.h and Bill Carson's patches
      8 */
      9
     10#include <linux/init.h>
     11#include <linux/fs.h>
     12#include <linux/mm.h>
     13#include <linux/hugetlb.h>
     14#include <linux/pagemap.h>
     15#include <linux/err.h>
     16#include <linux/sysctl.h>
     17#include <asm/mman.h>
     18#include <asm/tlb.h>
     19#include <asm/tlbflush.h>
     20
     21/*
     22 * On ARM, huge pages are backed by pmd's rather than pte's, so we do a lot
     23 * of type casting from pmd_t * to pte_t *.
     24 */
     25
     26int pud_huge(pud_t pud)
     27{
     28	return 0;
     29}
     30
     31int pmd_huge(pmd_t pmd)
     32{
     33	return pmd_val(pmd) && !(pmd_val(pmd) & PMD_TABLE_BIT);
     34}