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