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| Commit | Line | Data |
|---|---|---|
| 2bf59916 AK |
1 | #ifndef _ASM_POWERPC_PGTABLE_TYPES_H |
| 2 | #define _ASM_POWERPC_PGTABLE_TYPES_H | |
| 3 | ||
| 4 | #ifdef CONFIG_STRICT_MM_TYPECHECKS | |
| 5 | /* These are used to make use of C type-checking. */ | |
| 6 | ||
| 7 | /* PTE level */ | |
| 8 | typedef struct { pte_basic_t pte; } pte_t; | |
| 9 | #define __pte(x) ((pte_t) { (x) }) | |
| 10 | static inline pte_basic_t pte_val(pte_t x) | |
| 11 | { | |
| 12 | return x.pte; | |
| 13 | } | |
| 14 | ||
| 2bf59916 AK |
15 | /* PMD level */ |
| 16 | #ifdef CONFIG_PPC64 | |
| 17 | typedef struct { unsigned long pmd; } pmd_t; | |
| 18 | #define __pmd(x) ((pmd_t) { (x) }) | |
| 19 | static inline unsigned long pmd_val(pmd_t x) | |
| 20 | { | |
| 21 | return x.pmd; | |
| 22 | } | |
| 23 | ||
| 368ced78 AK |
24 | /* |
| 25 | * 64 bit hash always use 4 level table. Everybody else use 4 level | |
| 26 | * only for 4K page size. | |
| 27 | */ | |
| 28 | #if defined(CONFIG_PPC_BOOK3S_64) || !defined(CONFIG_PPC_64K_PAGES) | |
| 2bf59916 AK |
29 | typedef struct { unsigned long pud; } pud_t; |
| 30 | #define __pud(x) ((pud_t) { (x) }) | |
| 31 | static inline unsigned long pud_val(pud_t x) | |
| 32 | { | |
| 33 | return x.pud; | |
| 34 | } | |
| 368ced78 | 35 | #endif /* CONFIG_PPC_BOOK3S_64 || !CONFIG_PPC_64K_PAGES */ |
| 2bf59916 AK |
36 | #endif /* CONFIG_PPC64 */ |
| 37 | ||
| 38 | /* PGD level */ | |
| 39 | typedef struct { unsigned long pgd; } pgd_t; | |
| 40 | #define __pgd(x) ((pgd_t) { (x) }) | |
| 41 | static inline unsigned long pgd_val(pgd_t x) | |
| 42 | { | |
| 43 | return x.pgd; | |
| 44 | } | |
| 45 | ||
| 46 | /* Page protection bits */ | |
| 47 | typedef struct { unsigned long pgprot; } pgprot_t; | |
| 48 | #define pgprot_val(x) ((x).pgprot) | |
| 49 | #define __pgprot(x) ((pgprot_t) { (x) }) | |
| 50 | ||
| 51 | #else | |
| 52 | ||
| 53 | /* | |
| 54 | * .. while these make it easier on the compiler | |
| 55 | */ | |
| 56 | ||
| 57 | typedef pte_basic_t pte_t; | |
| 58 | #define __pte(x) (x) | |
| 59 | static inline pte_basic_t pte_val(pte_t pte) | |
| 60 | { | |
| 61 | return pte; | |
| 62 | } | |
| 63 | ||
| 2bf59916 AK |
64 | #ifdef CONFIG_PPC64 |
| 65 | typedef unsigned long pmd_t; | |
| 66 | #define __pmd(x) (x) | |
| 67 | static inline unsigned long pmd_val(pmd_t pmd) | |
| 68 | { | |
| 69 | return pmd; | |
| 70 | } | |
| 71 | ||
| 368ced78 | 72 | #if defined(CONFIG_PPC_BOOK3S_64) || !defined(CONFIG_PPC_64K_PAGES) |
| 2bf59916 AK |
73 | typedef unsigned long pud_t; |
| 74 | #define __pud(x) (x) | |
| 75 | static inline unsigned long pud_val(pud_t pud) | |
| 76 | { | |
| 77 | return pud; | |
| 78 | } | |
| 368ced78 | 79 | #endif /* CONFIG_PPC_BOOK3S_64 || !CONFIG_PPC_64K_PAGES */ |
| 2bf59916 AK |
80 | #endif /* CONFIG_PPC64 */ |
| 81 | ||
| 82 | typedef unsigned long pgd_t; | |
| 83 | #define __pgd(x) (x) | |
| 84 | static inline unsigned long pgd_val(pgd_t pgd) | |
| 85 | { | |
| 86 | return pgd; | |
| 87 | } | |
| 88 | ||
| 89 | typedef unsigned long pgprot_t; | |
| 90 | #define pgprot_val(x) (x) | |
| 91 | #define __pgprot(x) (x) | |
| 92 | ||
| ae9a71af AK |
93 | #endif /* CONFIG_STRICT_MM_TYPECHECKS */ |
| 94 | /* | |
| 95 | * With hash config 64k pages additionally define a bigger "real PTE" type that | |
| 96 | * gathers the "second half" part of the PTE for pseudo 64k pages | |
| 97 | */ | |
| 98 | #if defined(CONFIG_PPC_64K_PAGES) && defined(CONFIG_PPC_STD_MMU_64) | |
| 99 | typedef struct { pte_t pte; unsigned long hidx; } real_pte_t; | |
| 100 | #else | |
| 101 | typedef struct { pte_t pte; } real_pte_t; | |
| 2bf59916 | 102 | #endif |
| 2bf59916 | 103 | #endif /* _ASM_POWERPC_PGTABLE_TYPES_H */ |