WebSVN – HelenOS – Diff – /trunk/kernel/generic/include/mm/page.h



 
 
/**
 * Macro for computing page color.
 */
#define PAGE_COLOR(va)  (((va) >> PAGE_WIDTH) & ((1 << PAGE_COLOR_BITS) - 1))
 
/** Page fault access type. */
enum pf_access {
    PF_ACCESS_READ,
    PF_ACCESS_WRITE,

};
typedef enum pf_access pf_access_t;
 
/** Operations to manipulate page mappings. */
struct page_mapping_operations {
    void (* mapping_insert)(as_t *as, uintptr_t page, uintptr_t frame, int
        flags);
    void (* mapping_remove)(as_t *as, uintptr_t page);
    pte_t *(* mapping_find)(as_t *as, uintptr_t page);
};
typedef struct page_mapping_operations page_mapping_operations_t;
 
extern page_mapping_operations_t *page_mapping_operations;
 
extern void page_init(void);
extern void page_table_lock(as_t *as, bool lock);
extern void page_table_unlock(as_t *as, bool unlock);
extern void page_mapping_insert(as_t *as, uintptr_t page, uintptr_t frame, int
    flags);
extern void page_mapping_remove(as_t *as, uintptr_t page);
extern pte_t *page_mapping_find(as_t *as, uintptr_t page);
extern pte_t *page_table_create(int flags);
extern void page_table_destroy(pte_t *page_table);
extern void map_structure(uintptr_t s, size_t size);

Subversion Repositories HelenOS

(root)/trunk/kernel/generic/include/mm/page.h @ 2071 – Rev 2007 → 2015

Rev 2007		Rev 2015
Line 68...		Line 68...
68		68
69		69
70	/**	70	/**
71	* Macro for computing page color.	71	* Macro for computing page color.
72	*/	72	*/
73	#define PAGE_COLOR(va) (((va) >> PAGE_WIDTH) & ((1 << PAGE_COLOR_BITS) - 1))	73	#define PAGE_COLOR(va) (((va) >> PAGE_WIDTH) & ((1 << PAGE_COLOR_BITS) - 1))
74		74
75	/** Page fault access type. */	75	/** Page fault access type. */
76	enum pf_access {	76	enum pf_access {
77	PF_ACCESS_READ,	77	PF_ACCESS_READ,
78	PF_ACCESS_WRITE,	78	PF_ACCESS_WRITE,
Line 80...		Line 80...
80	};	80	};
81	typedef enum pf_access pf_access_t;	81	typedef enum pf_access pf_access_t;
82		82
83	/** Operations to manipulate page mappings. */	83	/** Operations to manipulate page mappings. */
84	struct page_mapping_operations {	84	struct page_mapping_operations {
85	void (* mapping_insert)(as_t *as, uintptr_t page, uintptr_t frame, int flags);	85	void (* mapping_insert)(as_t *as, uintptr_t page, uintptr_t frame, int
-		86	flags);
86	void (* mapping_remove)(as_t *as, uintptr_t page);	87	void (* mapping_remove)(as_t *as, uintptr_t page);
87	pte_t ( mapping_find)(as_t *as, uintptr_t page);	88	pte_t ( mapping_find)(as_t *as, uintptr_t page);
88	};	89	};
89	typedef struct page_mapping_operations page_mapping_operations_t;	90	typedef struct page_mapping_operations page_mapping_operations_t;
90		91
91	extern page_mapping_operations_t *page_mapping_operations;	92	extern page_mapping_operations_t *page_mapping_operations;
92		93
93	extern void page_init(void);	94	extern void page_init(void);
94	extern void page_table_lock(as_t *as, bool lock);	95	extern void page_table_lock(as_t *as, bool lock);
95	extern void page_table_unlock(as_t *as, bool unlock);	96	extern void page_table_unlock(as_t *as, bool unlock);
96	extern void page_mapping_insert(as_t *as, uintptr_t page, uintptr_t frame, int flags);	97	extern void page_mapping_insert(as_t *as, uintptr_t page, uintptr_t frame, int
-		98	flags);
97	extern void page_mapping_remove(as_t *as, uintptr_t page);	99	extern void page_mapping_remove(as_t *as, uintptr_t page);
98	extern pte_t page_mapping_find(as_t as, uintptr_t page);	100	extern pte_t page_mapping_find(as_t as, uintptr_t page);
99	extern pte_t *page_table_create(int flags);	101	extern pte_t *page_table_create(int flags);
100	extern void page_table_destroy(pte_t *page_table);	102	extern void page_table_destroy(pte_t *page_table);
101	extern void map_structure(uintptr_t s, size_t size);	103	extern void map_structure(uintptr_t s, size_t size);