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_no.h (1438B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef _M68KNOMMU_PGTABLE_H
      3#define _M68KNOMMU_PGTABLE_H
      4
      5#include <asm-generic/pgtable-nopud.h>
      6
      7/*
      8 * (C) Copyright 2000-2002, Greg Ungerer <gerg@snapgear.com>
      9 */
     10
     11#include <linux/slab.h>
     12#include <asm/processor.h>
     13#include <asm/page.h>
     14#include <asm/io.h>
     15
     16/*
     17 * Trivial page table functions.
     18 */
     19#define pgd_present(pgd)	(1)
     20#define pgd_none(pgd)		(0)
     21#define pgd_bad(pgd)		(0)
     22#define pgd_clear(pgdp)
     23#define kern_addr_valid(addr)	(1)
     24#define	pmd_offset(a, b)	((void *)0)
     25
     26#define PAGE_NONE	__pgprot(0)
     27#define PAGE_SHARED	__pgprot(0)
     28#define PAGE_COPY	__pgprot(0)
     29#define PAGE_READONLY	__pgprot(0)
     30#define PAGE_KERNEL	__pgprot(0)
     31
     32extern void paging_init(void);
     33#define swapper_pg_dir ((pgd_t *) 0)
     34
     35#define __swp_type(x)		(0)
     36#define __swp_offset(x)		(0)
     37#define __swp_entry(typ,off)	((swp_entry_t) { ((typ) | ((off) << 7)) })
     38#define __pte_to_swp_entry(pte)	((swp_entry_t) { pte_val(pte) })
     39#define __swp_entry_to_pte(x)	((pte_t) { (x).val })
     40
     41/*
     42 * ZERO_PAGE is a global shared page that is always zero: used
     43 * for zero-mapped memory areas etc..
     44 */
     45extern void *empty_zero_page;
     46#define ZERO_PAGE(vaddr)	(virt_to_page(empty_zero_page))
     47
     48/*
     49 * All 32bit addresses are effectively valid for vmalloc...
     50 * Sort of meaningless for non-VM targets.
     51 */
     52#define	VMALLOC_START	0
     53#define	VMALLOC_END	0xffffffff
     54#define	KMAP_START	0
     55#define	KMAP_END	0xffffffff
     56
     57#endif /* _M68KNOMMU_PGTABLE_H */