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


/*
 * Copyright (c) 2001-2004 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/** @addtogroup genericmm
 * @{
 */
/** @file
 */
 
#ifndef KERN_PAGE_H_
#define KERN_PAGE_H_
 
#include <arch/types.h>
#include <mm/as.h>
#include <memstr.h>
 
/**
 * Macro for computing page color.
 */
#define PAGE_COLOR(va)  (((va) >> PAGE_WIDTH) & ((1 << PAGE_COLOR_BITS) - 1))
 
/** Operations to manipulate page mappings. */
typedef struct {
    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);
} 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);
extern uintptr_t hw_map(uintptr_t physaddr, size_t size);
 
#endif
 
/** @}
 */
 

Subversion Repositories HelenOS

(root)/trunk/kernel/generic/include/mm/page.h – Rev 2089 → 2106

Rev 2089		Rev 2106
1	/*	1	/*
2	* Copyright (c) 2001-2004 Jakub Jermar	2	* Copyright (c) 2001-2004 Jakub Jermar
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup genericmm	29	/** @addtogroup genericmm
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#ifndef KERN_PAGE_H_	35	#ifndef KERN_PAGE_H_
36	#define KERN_PAGE_H_	36	#define KERN_PAGE_H_
37		37
38	#include <arch/types.h>	38	#include <arch/types.h>
39	#include <mm/as.h>	39	#include <mm/as.h>
40	#include <memstr.h>	40	#include <memstr.h>
41		41
42	/**	42	/**
43	* Macro for computing page color.	43	* Macro for computing page color.
44	*/	44	*/
45	#define PAGE_COLOR(va) (((va) >> PAGE_WIDTH) & ((1 << PAGE_COLOR_BITS) - 1))	45	#define PAGE_COLOR(va) (((va) >> PAGE_WIDTH) & ((1 << PAGE_COLOR_BITS) - 1))
46		46
47	/** Operations to manipulate page mappings. */	47	/** Operations to manipulate page mappings. */
48	typedef struct {	48	typedef struct {
49	void (* mapping_insert)(as_t *as, uintptr_t page, uintptr_t frame,	49	void (* mapping_insert)(as_t *as, uintptr_t page, uintptr_t frame,
50	int flags);	50	int flags);
51	void (* mapping_remove)(as_t *as, uintptr_t page);	51	void (* mapping_remove)(as_t *as, uintptr_t page);
52	pte_t ( mapping_find)(as_t *as, uintptr_t page);	52	pte_t ( mapping_find)(as_t *as, uintptr_t page);
53	} page_mapping_operations_t;	53	} page_mapping_operations_t;
54		54
55	extern page_mapping_operations_t *page_mapping_operations;	55	extern page_mapping_operations_t *page_mapping_operations;
56		56
57	extern void page_init(void);	57	extern void page_init(void);
58	extern void page_table_lock(as_t *as, bool lock);	58	extern void page_table_lock(as_t *as, bool lock);
59	extern void page_table_unlock(as_t *as, bool unlock);	59	extern void page_table_unlock(as_t *as, bool unlock);
60	extern void page_mapping_insert(as_t *as, uintptr_t page, uintptr_t frame,	60	extern void page_mapping_insert(as_t *as, uintptr_t page, uintptr_t frame,
61	int flags);	61	int flags);
62	extern void page_mapping_remove(as_t *as, uintptr_t page);	62	extern void page_mapping_remove(as_t *as, uintptr_t page);
63	extern pte_t page_mapping_find(as_t as, uintptr_t page);	63	extern pte_t page_mapping_find(as_t as, uintptr_t page);
64	extern pte_t *page_table_create(int flags);	64	extern pte_t *page_table_create(int flags);
65	extern void page_table_destroy(pte_t *page_table);	65	extern void page_table_destroy(pte_t *page_table);
66	extern void map_structure(uintptr_t s, size_t size);	66	extern void map_structure(uintptr_t s, size_t size);
67	extern uintptr_t hw_map(uintptr_t physaddr, size_t size);	67	extern uintptr_t hw_map(uintptr_t physaddr, size_t size);
68		68
69	#endif	69	#endif
70		70
71	/** @}	71	/** @}
72	*/	72	*/
73		73