WebSVN – HelenOS – Diff – /trunk/kernel/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 KERN_FRAME_H_
#define KERN_FRAME_H_
 
#include <arch/types.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
#define FOUR_FRAMES 2
 
 
#ifdef ARCH_STACK_FRAMES
#define STACK_FRAMES ARCH_STACK_FRAMES
#else
#define STACK_FRAMES ONE_FRAME
#endif
 
/** Maximum number of zones in system. */
#define ZONES_MAX           16
 
/** If possible, merge with neighbouring zones. */
#define ZONE_JOIN           0x1
 
/** Convert the frame address to kernel va. */
#define FRAME_KA        0x1
/** Do not panic and do not sleep on failure. */
#define FRAME_ATOMIC            0x2
/** Do not start reclaiming when no free memory. */
#define FRAME_NO_RECLAIM        0x4
 
static inline uintptr_t PFN2ADDR(pfn_t frame)
{
    return (uintptr_t) (frame << FRAME_WIDTH);
}
 
static inline pfn_t ADDR2PFN(uintptr_t 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;
}
 
static inline size_t FRAMES2SIZE(count_t frames)
{
    return (size_t) (frames << FRAME_WIDTH);
}
 
#define IS_BUDDY_ORDER_OK(index, order)     \
    ((~(((unative_t) -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(uint8_t order, int flags, unsigned int *pzone);
extern void frame_free(uintptr_t frame);
extern void frame_reference_add(pfn_t pfn);
 
extern int zone_create(pfn_t start, count_t count, pfn_t confframe, int flags);
extern void *frame_get_parent(pfn_t frame, unsigned int hint);
extern void frame_set_parent(pfn_t frame, void *data, unsigned int hint);
extern void frame_mark_unavailable(pfn_t start, count_t count);
extern uintptr_t zone_conf_size(count_t count);
extern void zone_merge(unsigned int z1, unsigned int z2);
extern void zone_merge_all(void);
extern uint64_t zone_total_size(void);
 
/*
 * Console functions
 */
extern void zone_print_list(void);
extern void zone_print_one(unsigned int znum);
 
#endif
 
/** @}
 */
 

Subversion Repositories HelenOS

(root)/trunk/kernel/generic/include/mm/frame.h @ 2465 – Rev 2465 → 2725

Rev 2465		Rev 2725
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 KERN_FRAME_H_	36	#ifndef KERN_FRAME_H_
37	#define KERN_FRAME_H_	37	#define KERN_FRAME_H_
38		38
39	#include <arch/types.h>	39	#include <arch/types.h>
40	#include <adt/list.h>	40	#include <adt/list.h>
41	#include <synch/spinlock.h>	41	#include <synch/spinlock.h>
42	#include <mm/buddy.h>	42	#include <mm/buddy.h>
43	#include <arch/mm/page.h>	43	#include <arch/mm/page.h>
44	#include <arch/mm/frame.h>	44	#include <arch/mm/frame.h>
45		45
46	#define ONE_FRAME 0	46	#define ONE_FRAME 0
47	#define TWO_FRAMES 1	47	#define TWO_FRAMES 1
48	#define FOUR_FRAMES 2	48	#define FOUR_FRAMES 2
49		49
50		50
51	#ifdef ARCH_STACK_FRAMES	51	#ifdef ARCH_STACK_FRAMES
52	#define STACK_FRAMES ARCH_STACK_FRAMES	52	#define STACK_FRAMES ARCH_STACK_FRAMES
53	#else	53	#else
54	#define STACK_FRAMES ONE_FRAME	54	#define STACK_FRAMES ONE_FRAME
55	#endif	55	#endif
56		56
57	/** Maximum number of zones in system. */	57	/** Maximum number of zones in system. */
58	#define ZONES_MAX 16	58	#define ZONES_MAX 16
59		59
60	/** If possible, merge with neighbouring zones. */	60	/** If possible, merge with neighbouring zones. */
61	#define ZONE_JOIN 0x1	61	#define ZONE_JOIN 0x1
62		62
63	/** Convert the frame address to kernel va. */	63	/** Convert the frame address to kernel va. */
64	#define FRAME_KA 0x1	64	#define FRAME_KA 0x1
65	/** Do not panic and do not sleep on failure. */	65	/** Do not panic and do not sleep on failure. */
66	#define FRAME_ATOMIC 0x2	66	#define FRAME_ATOMIC 0x2
67	/** Do not start reclaiming when no free memory. */	67	/** Do not start reclaiming when no free memory. */
68	#define FRAME_NO_RECLAIM 0x4	68	#define FRAME_NO_RECLAIM 0x4
69		69
70	static inline uintptr_t PFN2ADDR(pfn_t frame)	70	static inline uintptr_t PFN2ADDR(pfn_t frame)
71	{	71	{
72	return (uintptr_t) (frame << FRAME_WIDTH);	72	return (uintptr_t) (frame << FRAME_WIDTH);
73	}	73	}
74		74
75	static inline pfn_t ADDR2PFN(uintptr_t addr)	75	static inline pfn_t ADDR2PFN(uintptr_t addr)
76	{	76	{
77	return (pfn_t) (addr >> FRAME_WIDTH);	77	return (pfn_t) (addr >> FRAME_WIDTH);
78	}	78	}
79		79
80	static inline count_t SIZE2FRAMES(size_t size)	80	static inline count_t SIZE2FRAMES(size_t size)
81	{	81	{
82	if (!size)	82	if (!size)
83	return 0;	83	return 0;
84	return (count_t) ((size - 1) >> FRAME_WIDTH) + 1;	84	return (count_t) ((size - 1) >> FRAME_WIDTH) + 1;
85	}	85	}
86		86
-		87	static inline size_t FRAMES2SIZE(count_t frames)
-		88	{
-		89	return (size_t) (frames << FRAME_WIDTH);
-		90	}
-		91
87	#define IS_BUDDY_ORDER_OK(index, order) \	92	#define IS_BUDDY_ORDER_OK(index, order) \
88	((~(((unative_t) -1) << (order)) & (index)) == 0)	93	((~(((unative_t) -1) << (order)) & (index)) == 0)
89	#define IS_BUDDY_LEFT_BLOCK(zone, frame) \	94	#define IS_BUDDY_LEFT_BLOCK(zone, frame) \
90	(((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)	95	(((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
91	#define IS_BUDDY_RIGHT_BLOCK(zone, frame) \	96	#define IS_BUDDY_RIGHT_BLOCK(zone, frame) \
92	(((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)	97	(((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
93	#define IS_BUDDY_LEFT_BLOCK_ABS(zone, frame) \	98	#define IS_BUDDY_LEFT_BLOCK_ABS(zone, frame) \
94	(((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)	99	(((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
95	#define IS_BUDDY_RIGHT_BLOCK_ABS(zone, frame) \	100	#define IS_BUDDY_RIGHT_BLOCK_ABS(zone, frame) \
96	(((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)	101	(((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
97		102
98	#define frame_alloc(order, flags) \	103	#define frame_alloc(order, flags) \
99	frame_alloc_generic(order, flags, NULL)	104	frame_alloc_generic(order, flags, NULL)
100		105
101	extern void frame_init(void);	106	extern void frame_init(void);
102	extern void frame_alloc_generic(uint8_t order, int flags, unsigned int pzone);	107	extern void frame_alloc_generic(uint8_t order, int flags, unsigned int pzone);
103	extern void frame_free(uintptr_t frame);	108	extern void frame_free(uintptr_t frame);
104	extern void frame_reference_add(pfn_t pfn);	109	extern void frame_reference_add(pfn_t pfn);
105		110
106	extern int zone_create(pfn_t start, count_t count, pfn_t confframe, int flags);	111	extern int zone_create(pfn_t start, count_t count, pfn_t confframe, int flags);
107	void *frame_get_parent(pfn_t frame, unsigned int hint);	112	extern void *frame_get_parent(pfn_t frame, unsigned int hint);
108	void frame_set_parent(pfn_t frame, void *data, unsigned int hint);	113	extern void frame_set_parent(pfn_t frame, void *data, unsigned int hint);
109	void frame_mark_unavailable(pfn_t start, count_t count);	114	extern void frame_mark_unavailable(pfn_t start, count_t count);
110	uintptr_t zone_conf_size(count_t count);	115	extern uintptr_t zone_conf_size(count_t count);
111	void zone_merge(unsigned int z1, unsigned int z2);	116	extern void zone_merge(unsigned int z1, unsigned int z2);
112	void zone_merge_all(void);	117	extern void zone_merge_all(void);
-		118	extern uint64_t zone_total_size(void);
113		119
114	/*	120	/*
115	* Console functions	121	* Console functions
116	*/	122	*/
117	extern void zone_print_list(void);	123	extern void zone_print_list(void);
118	void zone_print_one(unsigned int znum);	124	extern void zone_print_one(unsigned int znum);
119		125
120	#endif	126	#endif
121		127
122	/** @}	128	/** @}
123	*/	129	*/
124		130