WebSVN – HelenOS-historic – Diff – /kernel/trunk/generic/src/mm/page.c



/** Insert mapping of page to frame.
 *
 * Map virtual address 'page' to physical address 'frame'
 * using 'flags'. Allocate and setup any missing page tables.
 *
 * The page table must be locked and interrupts must be disabled.
 *
 * @param as Address space to wich page belongs.
 * @param page Virtual address of the page to be mapped.
 * @param frame Physical address of memory frame to which the mapping is done.
 * @param flags Flags to be used for mapping.

 *
 * Remove any mapping of 'page' within address space 'as'.
 * TLB shootdown should follow in order to make effects of
 * this call visible.
 *
 * The page table must be locked and interrupts must be disabled.
 *
 * @param as Address space to wich page belongs.
 * @param page Virtual address of the page to be demapped.
 */
void page_mapping_remove(as_t *as, __address page)

 
/** Find mapping for virtual page
 *
 * Find mapping for virtual page.
 *
 * The page table must be locked and interrupts must be disabled.
 *
 * @param as Address space to wich page belongs.
 * @param page Virtual page.
 *
 * @return NULL if there is no such mapping; requested mapping otherwise.

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/src/mm/page.c – Rev 826 → 1044

Rev 826		Rev 1044
Line 74...		Line 74...
74	/** Insert mapping of page to frame.	74	/** Insert mapping of page to frame.
75	*	75	*
76	* Map virtual address 'page' to physical address 'frame'	76	* Map virtual address 'page' to physical address 'frame'
77	* using 'flags'. Allocate and setup any missing page tables.	77	* using 'flags'. Allocate and setup any missing page tables.
78	*	78	*
79	* The address space must be locked and interrupts must be disabled.	79	* The page table must be locked and interrupts must be disabled.
80	*	80	*
81	* @param as Address space to wich page belongs.	81	* @param as Address space to wich page belongs.
82	* @param page Virtual address of the page to be mapped.	82	* @param page Virtual address of the page to be mapped.
83	* @param frame Physical address of memory frame to which the mapping is done.	83	* @param frame Physical address of memory frame to which the mapping is done.
84	* @param flags Flags to be used for mapping.	84	* @param flags Flags to be used for mapping.
Line 95...		Line 95...
95	*	95	*
96	* Remove any mapping of 'page' within address space 'as'.	96	* Remove any mapping of 'page' within address space 'as'.
97	* TLB shootdown should follow in order to make effects of	97	* TLB shootdown should follow in order to make effects of
98	* this call visible.	98	* this call visible.
99	*	99	*
100	* The address space must be locked and interrupts must be disabled.	100	* The page table must be locked and interrupts must be disabled.
101	*	101	*
102	* @param as Address space to wich page belongs.	102	* @param as Address space to wich page belongs.
103	* @param page Virtual address of the page to be demapped.	103	* @param page Virtual address of the page to be demapped.
104	*/	104	*/
105	void page_mapping_remove(as_t *as, __address page)	105	void page_mapping_remove(as_t *as, __address page)
Line 112...		Line 112...
112		112
113	/** Find mapping for virtual page	113	/** Find mapping for virtual page
114	*	114	*
115	* Find mapping for virtual page.	115	* Find mapping for virtual page.
116	*	116	*
117	* The address space must be locked and interrupts must be disabled.	117	* The page table must be locked and interrupts must be disabled.
118	*	118	*
119	* @param as Address space to wich page belongs.	119	* @param as Address space to wich page belongs.
120	* @param page Virtual page.	120	* @param page Virtual page.
121	*	121	*
122	* @return NULL if there is no such mapping; requested mapping otherwise.	122	* @return NULL if there is no such mapping; requested mapping otherwise.