1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
 4 * Copyright 2003 PathScale, Inc.
 5 * Derived from include/asm-i386/pgtable.h
 6 */
 7
 8#ifndef __UM_PGTABLE_2LEVEL_H
 9#define __UM_PGTABLE_2LEVEL_H
10
 
11#include <asm-generic/pgtable-nopmd.h>
12
13/* PGDIR_SHIFT determines what a third-level page table entry can map */
14
15#define PGDIR_SHIFT	22
16#define PGDIR_SIZE	(1UL << PGDIR_SHIFT)
17#define PGDIR_MASK	(~(PGDIR_SIZE-1))
18
19/*
20 * entries per page directory level: the i386 is two-level, so
21 * we don't really have any PMD directory physically.
22 */
23#define PTRS_PER_PTE	1024
24#define USER_PTRS_PER_PGD ((TASK_SIZE + (PGDIR_SIZE - 1)) / PGDIR_SIZE)
25#define PTRS_PER_PGD	1024
26#define FIRST_USER_ADDRESS	0UL
27
28#define pte_ERROR(e) \
29        printk("%s:%d: bad pte %p(%08lx).\n", __FILE__, __LINE__, &(e), \
30	       pte_val(e))
31#define pgd_ERROR(e) \
32        printk("%s:%d: bad pgd %p(%08lx).\n", __FILE__, __LINE__, &(e), \
33	       pgd_val(e))
34
35static inline int pgd_newpage(pgd_t pgd)	{ return 0; }
36static inline void pgd_mkuptodate(pgd_t pgd)	{ }
37
38#define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval))
39
40#define pte_pfn(x) phys_to_pfn(pte_val(x))
41#define pfn_pte(pfn, prot) __pte(pfn_to_phys(pfn) | pgprot_val(prot))
42#define pfn_pmd(pfn, prot) __pmd(pfn_to_phys(pfn) | pgprot_val(prot))
43
44#endif

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
 4 * Copyright 2003 PathScale, Inc.
 5 * Derived from include/asm-i386/pgtable.h
 6 */
 7
 8#ifndef __UM_PGTABLE_2LEVEL_H
 9#define __UM_PGTABLE_2LEVEL_H
10
11#define __ARCH_USE_5LEVEL_HACK
12#include <asm-generic/pgtable-nopmd.h>
13
14/* PGDIR_SHIFT determines what a third-level page table entry can map */
15
16#define PGDIR_SHIFT	22
17#define PGDIR_SIZE	(1UL << PGDIR_SHIFT)
18#define PGDIR_MASK	(~(PGDIR_SIZE-1))
19
20/*
21 * entries per page directory level: the i386 is two-level, so
22 * we don't really have any PMD directory physically.
23 */
24#define PTRS_PER_PTE	1024
25#define USER_PTRS_PER_PGD ((TASK_SIZE + (PGDIR_SIZE - 1)) / PGDIR_SIZE)
26#define PTRS_PER_PGD	1024
27#define FIRST_USER_ADDRESS	0UL
28
29#define pte_ERROR(e) \
30        printk("%s:%d: bad pte %p(%08lx).\n", __FILE__, __LINE__, &(e), \
31	       pte_val(e))
32#define pgd_ERROR(e) \
33        printk("%s:%d: bad pgd %p(%08lx).\n", __FILE__, __LINE__, &(e), \
34	       pgd_val(e))
35
36static inline int pgd_newpage(pgd_t pgd)	{ return 0; }
37static inline void pgd_mkuptodate(pgd_t pgd)	{ }
38
39#define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval))
40
41#define pte_pfn(x) phys_to_pfn(pte_val(x))
42#define pfn_pte(pfn, prot) __pte(pfn_to_phys(pfn) | pgprot_val(prot))
43#define pfn_pmd(pfn, prot) __pmd(pfn_to_phys(pfn) | pgprot_val(prot))
44
45#endif