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| Rev 789 | Rev 823 | ||
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| Line 74... | Line 74... | ||
| 74 | * supposed to figure in the list as they are shared by all tasks and |
74 | * supposed to figure in the list as they are shared by all tasks and |
| 75 | * set up during system initialization. |
75 | * set up during system initialization. |
| 76 | */ |
76 | */ |
| 77 | struct as { |
77 | struct as { |
| 78 | /** Protected by asidlock. Must be acquired before as->lock. */ |
78 | /** Protected by asidlock. Must be acquired before as->lock. */ |
| 79 | link_t as_with_asid_link; |
79 | link_t inactive_as_with_asid_link; |
| 80 | 80 | ||
| 81 | SPINLOCK_DECLARE(lock); |
81 | SPINLOCK_DECLARE(lock); |
| - | 82 | ||
| - | 83 | /** Number of processors on wich is this address space active. */ |
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| - | 84 | count_t refcount; |
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| - | 85 | ||
| 82 | link_t as_area_head; |
86 | link_t as_area_head; |
| 83 | 87 | ||
| 84 | /** Page table pointer. Constant on architectures that use global page hash table. */ |
88 | /** Page table pointer. Constant on architectures that use global page hash table. */ |
| 85 | pte_t *page_table; |
89 | pte_t *page_table; |
| 86 | 90 | ||
| Line 94... | Line 98... | ||
| 94 | typedef struct as_operations as_operations_t; |
98 | typedef struct as_operations as_operations_t; |
| 95 | 99 | ||
| 96 | extern as_t *AS_KERNEL; |
100 | extern as_t *AS_KERNEL; |
| 97 | extern as_operations_t *as_operations; |
101 | extern as_operations_t *as_operations; |
| 98 | 102 | ||
| - | 103 | extern spinlock_t as_lock; |
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| - | 104 | extern link_t inactive_as_with_asid_head; |
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| - | 105 | ||
| 99 | extern void as_init(void); |
106 | extern void as_init(void); |
| 100 | extern as_t *as_create(int flags); |
107 | extern as_t *as_create(int flags); |
| 101 | extern as_area_t *as_area_create(as_t *as, as_area_type_t type, size_t size, __address base); |
108 | extern as_area_t *as_area_create(as_t *as, as_area_type_t type, size_t size, __address base); |
| 102 | extern void as_set_mapping(as_t *as, __address page, __address frame); |
109 | extern void as_set_mapping(as_t *as, __address page, __address frame); |
| 103 | extern int as_page_fault(__address page); |
110 | extern int as_page_fault(__address page); |
| 104 | extern void as_install(as_t *m); |
111 | extern void as_switch(as_t *old, as_t *new); |
| 105 | 112 | ||
| 106 | /* Interface to be implemented by architectures. */ |
113 | /* Interface to be implemented by architectures. */ |
| 107 | #ifndef as_install_arch |
114 | #ifndef as_install_arch |
| 108 | extern void as_install_arch(as_t *as); |
115 | extern void as_install_arch(as_t *as); |
| 109 | #endif /* !def as_install_arch */ |
116 | #endif /* !def as_install_arch */ |