WebSVN – HelenOS-historic – Diff – /kernel/trunk/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.
 */
 
#ifndef __PAGE_H__
#define __PAGE_H__
 
#include <arch/mm/asid.h>
#include <arch/types.h>
#include <typedefs.h>
#include <memstr.h>
 
#define PAGE_CACHEABLE_SHIFT        0
#define PAGE_NOT_CACHEABLE_SHIFT    PAGE_CACHEABLE_SHIFT
#define PAGE_PRESENT_SHIFT      1
#define PAGE_NOT_PRESENT_SHIFT      PAGE_PRESENT_SHIFT
#define PAGE_USER_SHIFT         2
#define PAGE_KERNEL_SHIFT       PAGE_USER_SHIFT
#define PAGE_READ_SHIFT         3
#define PAGE_WRITE_SHIFT        4
#define PAGE_EXEC_SHIFT         5
#define PAGE_GLOBAL_SHIFT       6
 
#define PAGE_NOT_CACHEABLE  (0<<PAGE_CACHEABLE_SHIFT)
#define PAGE_CACHEABLE      (1<<PAGE_CACHEABLE_SHIFT)
 
#define PAGE_PRESENT        (0<<PAGE_PRESENT_SHIFT)
#define PAGE_NOT_PRESENT    (1<<PAGE_PRESENT_SHIFT)
 
#define PAGE_USER       (1<<PAGE_USER_SHIFT)
#define PAGE_KERNEL     (0<<PAGE_USER_SHIFT)
 
#define PAGE_READ       (1<<PAGE_READ_SHIFT)
#define PAGE_WRITE      (1<<PAGE_WRITE_SHIFT)
#define PAGE_EXEC       (1<<PAGE_EXEC_SHIFT)
 
#define PAGE_GLOBAL     (1<<PAGE_GLOBAL_SHIFT)
 
/** Operations to manipulate page mappings. */
struct page_mapping_operations {
    void (* mapping_insert)(as_t *as, __address page, __address frame, int flags);
    void (* mapping_remove)(as_t *as, __address page);
    pte_t *(* mapping_find)(as_t *as, __address 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, __address page, __address frame, int flags);
extern void page_mapping_remove(as_t *as, __address page);
extern pte_t *page_mapping_find(as_t *as, __address page);
extern pte_t *page_table_create(int flags);
extern void map_structure(__address s, size_t size);
extern __address hw_map(__address physaddr, size_t size);
 
#endif
 

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/include/mm/page.h – Rev 1288 → 1382

Rev 1288		Rev 1382
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	#ifndef __PAGE_H__	29	#ifndef __PAGE_H__
30	#define __PAGE_H__	30	#define __PAGE_H__
31		31
32	#include <arch/mm/asid.h>	32	#include <arch/mm/asid.h>
33	#include <arch/types.h>	33	#include <arch/types.h>
34	#include <typedefs.h>	34	#include <typedefs.h>
35	#include <memstr.h>	35	#include <memstr.h>
36		36
37	#define PAGE_CACHEABLE_SHIFT 0	37	#define PAGE_CACHEABLE_SHIFT 0
38	#define PAGE_NOT_CACHEABLE_SHIFT PAGE_CACHEABLE_SHIFT	38	#define PAGE_NOT_CACHEABLE_SHIFT PAGE_CACHEABLE_SHIFT
39	#define PAGE_PRESENT_SHIFT 1	39	#define PAGE_PRESENT_SHIFT 1
40	#define PAGE_NOT_PRESENT_SHIFT PAGE_PRESENT_SHIFT	40	#define PAGE_NOT_PRESENT_SHIFT PAGE_PRESENT_SHIFT
41	#define PAGE_USER_SHIFT 2	41	#define PAGE_USER_SHIFT 2
42	#define PAGE_KERNEL_SHIFT PAGE_USER_SHIFT	42	#define PAGE_KERNEL_SHIFT PAGE_USER_SHIFT
43	#define PAGE_READ_SHIFT 3	43	#define PAGE_READ_SHIFT 3
44	#define PAGE_WRITE_SHIFT 4	44	#define PAGE_WRITE_SHIFT 4
45	#define PAGE_EXEC_SHIFT 5	45	#define PAGE_EXEC_SHIFT 5
46	#define PAGE_GLOBAL_SHIFT 6	46	#define PAGE_GLOBAL_SHIFT 6
47		47
48	#define PAGE_NOT_CACHEABLE (0<<PAGE_CACHEABLE_SHIFT)	48	#define PAGE_NOT_CACHEABLE (0<<PAGE_CACHEABLE_SHIFT)
49	#define PAGE_CACHEABLE (1<<PAGE_CACHEABLE_SHIFT)	49	#define PAGE_CACHEABLE (1<<PAGE_CACHEABLE_SHIFT)
50		50
51	#define PAGE_PRESENT (0<<PAGE_PRESENT_SHIFT)	51	#define PAGE_PRESENT (0<<PAGE_PRESENT_SHIFT)
52	#define PAGE_NOT_PRESENT (1<<PAGE_PRESENT_SHIFT)	52	#define PAGE_NOT_PRESENT (1<<PAGE_PRESENT_SHIFT)
53		53
54	#define PAGE_USER (1<<PAGE_USER_SHIFT)	54	#define PAGE_USER (1<<PAGE_USER_SHIFT)
55	#define PAGE_KERNEL (0<<PAGE_USER_SHIFT)	55	#define PAGE_KERNEL (0<<PAGE_USER_SHIFT)
56		56
57	#define PAGE_READ (1<<PAGE_READ_SHIFT)	57	#define PAGE_READ (1<<PAGE_READ_SHIFT)
58	#define PAGE_WRITE (1<<PAGE_WRITE_SHIFT)	58	#define PAGE_WRITE (1<<PAGE_WRITE_SHIFT)
59	#define PAGE_EXEC (1<<PAGE_EXEC_SHIFT)	59	#define PAGE_EXEC (1<<PAGE_EXEC_SHIFT)
60		60
61	#define PAGE_GLOBAL (1<<PAGE_GLOBAL_SHIFT)	61	#define PAGE_GLOBAL (1<<PAGE_GLOBAL_SHIFT)
62		62
63	/** Operations to manipulate page mappings. */	63	/** Operations to manipulate page mappings. */
64	struct page_mapping_operations {	64	struct page_mapping_operations {
65	void (* mapping_insert)(as_t *as, __address page, __address frame, int flags);	65	void (* mapping_insert)(as_t *as, __address page, __address frame, int flags);
66	void (* mapping_remove)(as_t *as, __address page);	66	void (* mapping_remove)(as_t *as, __address page);
67	pte_t ( mapping_find)(as_t *as, __address page);	67	pte_t ( mapping_find)(as_t *as, __address page);
68	};	68	};
69	typedef struct page_mapping_operations page_mapping_operations_t;	69	typedef struct page_mapping_operations page_mapping_operations_t;
70		70
71	extern page_mapping_operations_t *page_mapping_operations;	71	extern page_mapping_operations_t *page_mapping_operations;
72		72
73	extern void page_init(void);	73	extern void page_init(void);
74	extern void page_table_lock(as_t *as, bool lock);	74	extern void page_table_lock(as_t *as, bool lock);
75	extern void page_table_unlock(as_t *as, bool unlock);	75	extern void page_table_unlock(as_t *as, bool unlock);
76	extern void page_mapping_insert(as_t *as, __address page, __address frame, int flags);	76	extern void page_mapping_insert(as_t *as, __address page, __address frame, int flags);
77	extern void page_mapping_remove(as_t *as, __address page);	77	extern void page_mapping_remove(as_t *as, __address page);
78	extern pte_t page_mapping_find(as_t as, __address page);	78	extern pte_t page_mapping_find(as_t as, __address page);
79	extern pte_t *page_table_create(int flags);	79	extern pte_t *page_table_create(int flags);
80	extern void map_structure(__address s, size_t size);	80	extern void map_structure(__address s, size_t size);
-		81	extern __address hw_map(__address physaddr, size_t size);
81		82
82	#endif	83	#endif
83		84