WebSVN – HelenOS-historic – Diff – /kernel/trunk/generic/include/mm/frame.h


/*
 * Copyright (C) 2005 Jakub Jermar
 * Copyright (C) 2005 Sergey Bondari
 * 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 __FRAME_H__
#define __FRAME_H__
 
#include <arch/types.h>
#include <typedefs.h>
#include <adt/list.h>
#include <synch/spinlock.h>
#include <mm/buddy.h>
#include <arch/mm/page.h>
#include <arch/mm/frame.h>
 
#define ONE_FRAME   0
#define TWO_FRAMES  1
 
#ifdef ARCH_STACK_FRAMES
#define STACK_FRAMES ARCH_STACK_FRAMES
#else
#define STACK_FRAMES ONE_FRAME
#endif
 
#define ZONES_MAX       16      /**< Maximum number of zones in system */
 
#define ZONE_JOIN       0x1 /**< If possible, merge with neighbouring zones */
 
#define FRAME_KA        0x1 /* skip frames conflicting with user address space */
 
#define FRAME_ATOMIC            0x2 /* do not panic and do not sleep on failure */
#define FRAME_NO_RECLAIM        0x4     /* do not start reclaiming when no free memory */
 
#define FRAME_OK        0   /* frame_alloc return status */
#define FRAME_NO_MEMORY     1   /* frame_alloc return status */
#define FRAME_ERROR     2   /* frame_alloc return status */
 
static inline __address PFN2ADDR(pfn_t frame)
{
    return (__address)(frame << FRAME_WIDTH);
}
 
static inline pfn_t ADDR2PFN(__address addr)
{
    return (pfn_t)(addr >> FRAME_WIDTH);
}
 
static inline count_t SIZE2FRAMES(size_t size)
{
    if (!size)
        return 0;
    return (count_t)((size-1) >> FRAME_WIDTH)+1;
}
 
#define IS_BUDDY_ORDER_OK(index, order)     ((~(((__native) -1) << (order)) & (index)) == 0)
#define IS_BUDDY_LEFT_BLOCK(zone, frame)    (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
#define IS_BUDDY_RIGHT_BLOCK(zone, frame)   (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
#define IS_BUDDY_LEFT_BLOCK_ABS(zone, frame)    (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
#define IS_BUDDY_RIGHT_BLOCK_ABS(zone, frame)   (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
 
#define frame_alloc(order, flags)               frame_alloc_generic(order, flags, NULL)
 
extern void frame_init(void);
extern void * frame_alloc_generic(__u8 order, int flags, int *pzone);
extern void frame_free(__address frame);
extern void frame_reference_add(pfn_t pfn);
 
extern int zone_create(pfn_t start, count_t count, pfn_t confframe, int flags);
void * frame_get_parent(pfn_t frame, int hint);
void frame_set_parent(pfn_t frame, void *data, int hint);
void frame_mark_unavailable(pfn_t start, count_t count);
__address zone_conf_size(count_t count);
void zone_merge(int z1, int z2);
void zone_merge_all(void);
 
/*
 * Console functions
 */
extern void zone_print_list(void);
void zone_print_one(int znum);
 
#endif
 
 /** @}
 */
 
 

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/include/mm/frame.h – Rev 1766 → 1767

Rev 1766		Rev 1767
1	/*	1	/*
2	* Copyright (C) 2005 Jakub Jermar	2	* Copyright (C) 2005 Jakub Jermar
3	* Copyright (C) 2005 Sergey Bondari	3	* Copyright (C) 2005 Sergey Bondari
4	* All rights reserved.	4	* All rights reserved.
5	*	5	*
6	* Redistribution and use in source and binary forms, with or without	6	* Redistribution and use in source and binary forms, with or without
7	* modification, are permitted provided that the following conditions	7	* modification, are permitted provided that the following conditions
8	* are met:	8	* are met:
9	*	9	*
10	* - Redistributions of source code must retain the above copyright	10	* - Redistributions of source code must retain the above copyright
11	* notice, this list of conditions and the following disclaimer.	11	* notice, this list of conditions and the following disclaimer.
12	* - Redistributions in binary form must reproduce the above copyright	12	* - Redistributions in binary form must reproduce the above copyright
13	* notice, this list of conditions and the following disclaimer in the	13	* notice, this list of conditions and the following disclaimer in the
14	* documentation and/or other materials provided with the distribution.	14	* documentation and/or other materials provided with the distribution.
15	* - The name of the author may not be used to endorse or promote products	15	* - The name of the author may not be used to endorse or promote products
16	* derived from this software without specific prior written permission.	16	* derived from this software without specific prior written permission.
17	*	17	*
18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28	*/	28	*/
29		29
30	/** @addtogroup genericmm	30	/** @addtogroup genericmm
31	* @{	31	* @{
32	*/	32	*/
33	/** @file	33	/** @file
34	*/	34	*/
35		35
36	#ifndef __FRAME_H__	36	#ifndef __FRAME_H__
37	#define __FRAME_H__	37	#define __FRAME_H__
38		38
39	#include <arch/types.h>	39	#include <arch/types.h>
40	#include <typedefs.h>	40	#include <typedefs.h>
41	#include <adt/list.h>	41	#include <adt/list.h>
42	#include <synch/spinlock.h>	42	#include <synch/spinlock.h>
43	#include <mm/buddy.h>	43	#include <mm/buddy.h>
44	#include <arch/mm/page.h>	44	#include <arch/mm/page.h>
45	#include <arch/mm/frame.h>	45	#include <arch/mm/frame.h>
46		46
47	#define ONE_FRAME 0	47	#define ONE_FRAME 0
48	#define TWO_FRAMES 1	48	#define TWO_FRAMES 1
49		49
50	#ifdef ARCH_STACK_FRAMES	50	#ifdef ARCH_STACK_FRAMES
51	#define STACK_FRAMES ARCH_STACK_FRAMES	51	#define STACK_FRAMES ARCH_STACK_FRAMES
52	#else	52	#else
53	#define STACK_FRAMES ONE_FRAME	53	#define STACK_FRAMES ONE_FRAME
54	#endif	54	#endif
55		55
56	#define ZONES_MAX 16 /*< Maximum number of zones in system /	56	#define ZONES_MAX 16 /*< Maximum number of zones in system /
57		57
58	#define ZONE_JOIN 0x1 /*< If possible, merge with neighbouring zones /	58	#define ZONE_JOIN 0x1 /*< If possible, merge with neighbouring zones /
59		59
60	#define FRAME_KA 0x1 /* skip frames conflicting with user address space */	60	#define FRAME_KA 0x1 /* skip frames conflicting with user address space */
61	#define FRAME_PANIC 0x2 /* panic on failure */	-
62	#define FRAME_ATOMIC 0x4 /* do not panic and do not sleep on failure */	61	#define FRAME_ATOMIC 0x2 /* do not panic and do not sleep on failure */
63	#define FRAME_NO_RECLAIM 0x8 /* do not start reclaiming when no free memory */	62	#define FRAME_NO_RECLAIM 0x4 /* do not start reclaiming when no free memory */
64		63
65	#define FRAME_OK 0 /* frame_alloc return status */	64	#define FRAME_OK 0 /* frame_alloc return status */
66	#define FRAME_NO_MEMORY 1 /* frame_alloc return status */	65	#define FRAME_NO_MEMORY 1 /* frame_alloc return status */
67	#define FRAME_ERROR 2 /* frame_alloc return status */	66	#define FRAME_ERROR 2 /* frame_alloc return status */
68		67
69	static inline __address PFN2ADDR(pfn_t frame)	68	static inline __address PFN2ADDR(pfn_t frame)
70	{	69	{
71	return (__address)(frame << FRAME_WIDTH);	70	return (__address)(frame << FRAME_WIDTH);
72	}	71	}
73		72
74	static inline pfn_t ADDR2PFN(__address addr)	73	static inline pfn_t ADDR2PFN(__address addr)
75	{	74	{
76	return (pfn_t)(addr >> FRAME_WIDTH);	75	return (pfn_t)(addr >> FRAME_WIDTH);
77	}	76	}
78		77
79	static inline count_t SIZE2FRAMES(size_t size)	78	static inline count_t SIZE2FRAMES(size_t size)
80	{	79	{
81	if (!size)	80	if (!size)
82	return 0;	81	return 0;
83	return (count_t)((size-1) >> FRAME_WIDTH)+1;	82	return (count_t)((size-1) >> FRAME_WIDTH)+1;
84	}	83	}
85		84
86	#define IS_BUDDY_ORDER_OK(index, order) ((~(((__native) -1) << (order)) & (index)) == 0)	85	#define IS_BUDDY_ORDER_OK(index, order) ((~(((__native) -1) << (order)) & (index)) == 0)
87	#define IS_BUDDY_LEFT_BLOCK(zone, frame) (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)	86	#define IS_BUDDY_LEFT_BLOCK(zone, frame) (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
88	#define IS_BUDDY_RIGHT_BLOCK(zone, frame) (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)	87	#define IS_BUDDY_RIGHT_BLOCK(zone, frame) (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
89	#define IS_BUDDY_LEFT_BLOCK_ABS(zone, frame) (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)	88	#define IS_BUDDY_LEFT_BLOCK_ABS(zone, frame) (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
90	#define IS_BUDDY_RIGHT_BLOCK_ABS(zone, frame) (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)	89	#define IS_BUDDY_RIGHT_BLOCK_ABS(zone, frame) (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
91		90
92	#define frame_alloc(order, flags) frame_alloc_generic(order, flags, NULL)	91	#define frame_alloc(order, flags) frame_alloc_generic(order, flags, NULL)
93		92
94	extern void frame_init(void);	93	extern void frame_init(void);
95	extern void * frame_alloc_generic(__u8 order, int flags, int *pzone);	94	extern void * frame_alloc_generic(__u8 order, int flags, int *pzone);
96	extern void frame_free(__address frame);	95	extern void frame_free(__address frame);
97	extern void frame_reference_add(pfn_t pfn);	96	extern void frame_reference_add(pfn_t pfn);
98		97
99	extern int zone_create(pfn_t start, count_t count, pfn_t confframe, int flags);	98	extern int zone_create(pfn_t start, count_t count, pfn_t confframe, int flags);
100	void * frame_get_parent(pfn_t frame, int hint);	99	void * frame_get_parent(pfn_t frame, int hint);
101	void frame_set_parent(pfn_t frame, void *data, int hint);	100	void frame_set_parent(pfn_t frame, void *data, int hint);
102	void frame_mark_unavailable(pfn_t start, count_t count);	101	void frame_mark_unavailable(pfn_t start, count_t count);
103	__address zone_conf_size(count_t count);	102	__address zone_conf_size(count_t count);
104	void zone_merge(int z1, int z2);	103	void zone_merge(int z1, int z2);
105	void zone_merge_all(void);	104	void zone_merge_all(void);
106		105
107	/*	106	/*
108	* Console functions	107	* Console functions
109	*/	108	*/
110	extern void zone_print_list(void);	109	extern void zone_print_list(void);
111	void zone_print_one(int znum);	110	void zone_print_one(int znum);
112		111
113	#endif	112	#endif
114		113
115	/** @}	114	/** @}
116	*/	115	*/
117		116
118		117