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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pgtable.h (780B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
      4 */
      5
      6#ifndef _ASM_ARC_PGTABLE_H
      7#define _ASM_ARC_PGTABLE_H
      8
      9#include <linux/bits.h>
     10
     11#include <asm/pgtable-levels.h>
     12#include <asm/pgtable-bits-arcv2.h>
     13#include <asm/page.h>
     14#include <asm/mmu.h>
     15
     16/*
     17 * Number of entries a user land program use.
     18 * TASK_SIZE is the maximum vaddr that can be used by a userland program.
     19 */
     20#define	USER_PTRS_PER_PGD	(TASK_SIZE / PGDIR_SIZE)
     21
     22#ifndef __ASSEMBLY__
     23
     24extern char empty_zero_page[PAGE_SIZE];
     25#define ZERO_PAGE(vaddr)	(virt_to_page(empty_zero_page))
     26
     27extern pgd_t swapper_pg_dir[] __aligned(PAGE_SIZE);
     28
     29/* to cope with aliasing VIPT cache */
     30#define HAVE_ARCH_UNMAPPED_AREA
     31
     32#endif /* __ASSEMBLY__ */
     33
     34#endif