1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Page table types definitions.
*
* Copyright (C) 2014 ARM Ltd.
* Author: Catalin Marinas <catalin.marinas@arm.com>
*/
#ifndef __ASM_PGTABLE_TYPES_H
#define __ASM_PGTABLE_TYPES_H
#include <asm/types.h>
/*
* Page Table Descriptor
*
* Generic page table descriptor format from which
* all level specific descriptors can be derived.
*/
typedef u64 ptdesc_t;
typedef ptdesc_t pteval_t;
typedef ptdesc_t pmdval_t;
typedef ptdesc_t pudval_t;
typedef ptdesc_t p4dval_t;
typedef ptdesc_t pgdval_t;
/*
* These are used to make use of C type-checking..
*/
typedef struct { pteval_t pte; } pte_t;
#define pte_val(x) ((x).pte)
#define __pte(x) ((pte_t) { (x) } )
#if CONFIG_PGTABLE_LEVELS > 2
typedef struct { pmdval_t pmd; } pmd_t;
#define pmd_val(x) ((x).pmd)
#define __pmd(x) ((pmd_t) { (x) } )
#endif
#if CONFIG_PGTABLE_LEVELS > 3
typedef struct { pudval_t pud; } pud_t;
#define pud_val(x) ((x).pud)
#define __pud(x) ((pud_t) { (x) } )
#endif
#if CONFIG_PGTABLE_LEVELS > 4
typedef struct { p4dval_t p4d; } p4d_t;
#define p4d_val(x) ((x).p4d)
#define __p4d(x) ((p4d_t) { (x) } )
#endif
typedef struct { pgdval_t pgd; } pgd_t;
#define pgd_val(x) ((x).pgd)
#define __pgd(x) ((pgd_t) { (x) } )
typedef struct { ptdesc_t pgprot; } pgprot_t;
#define pgprot_val(x) ((x).pgprot)
#define __pgprot(x) ((pgprot_t) { (x) } )
#if CONFIG_PGTABLE_LEVELS == 2
#include <asm-generic/pgtable-nopmd.h>
#elif CONFIG_PGTABLE_LEVELS == 3
#include <asm-generic/pgtable-nopud.h>
#elif CONFIG_PGTABLE_LEVELS == 4
#include <asm-generic/pgtable-nop4d.h>
#endif
#endif /* __ASM_PGTABLE_TYPES_H */
|
