WebSVN – HelenOS – Diff – /branches/network/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
 
/** 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
/** Do not allocate above 4 GiB. */
#define FRAME_LOW_4_GiB     0x8
 
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, int, unsigned int *);
extern void frame_free(uintptr_t);
extern void frame_reference_add(pfn_t);
 
extern int zone_create(pfn_t, count_t, pfn_t, int);
extern void *frame_get_parent(pfn_t, unsigned int);
extern void frame_set_parent(pfn_t, void *, unsigned int);
extern void frame_mark_unavailable(pfn_t, count_t);
extern uintptr_t zone_conf_size(count_t);
extern void zone_merge(unsigned int, unsigned int);
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);
 
#endif
 
/** @}
 */
 

Subversion Repositories HelenOS

(root)/branches/network/kernel/generic/include/mm/frame.h – Rev 3208 → 3386

Rev 3208		Rev 3386
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	/** Convert the frame address to kernel va. */	60	/** Convert the frame address to kernel va. */
61	#define FRAME_KA 0x1	61	#define FRAME_KA 0x1
62	/** Do not panic and do not sleep on failure. */	62	/** Do not panic and do not sleep on failure. */
63	#define FRAME_ATOMIC 0x2	63	#define FRAME_ATOMIC 0x2
64	/** Do not start reclaiming when no free memory. */	64	/** Do not start reclaiming when no free memory. */
65	#define FRAME_NO_RECLAIM 0x4	65	#define FRAME_NO_RECLAIM 0x4
66	/** Do not allocate above 4 GiB. */	66	/** Do not allocate above 4 GiB. */
67	#define FRAME_LOW_4_GiB 0x8	67	#define FRAME_LOW_4_GiB 0x8
68		68
69	static inline uintptr_t PFN2ADDR(pfn_t frame)	69	static inline uintptr_t PFN2ADDR(pfn_t frame)
70	{	70	{
71	return (uintptr_t) (frame << FRAME_WIDTH);	71	return (uintptr_t) (frame << FRAME_WIDTH);
72	}	72	}
73		73
74	static inline pfn_t ADDR2PFN(uintptr_t addr)	74	static inline pfn_t ADDR2PFN(uintptr_t addr)
75	{	75	{
76	return (pfn_t) (addr >> FRAME_WIDTH);	76	return (pfn_t) (addr >> FRAME_WIDTH);
77	}	77	}
78		78
79	static inline count_t SIZE2FRAMES(size_t size)	79	static inline count_t SIZE2FRAMES(size_t size)
80	{	80	{
81	if (!size)	81	if (!size)
82	return 0;	82	return 0;
83	return (count_t) ((size - 1) >> FRAME_WIDTH) + 1;	83	return (count_t) ((size - 1) >> FRAME_WIDTH) + 1;
84	}	84	}
85		85
86	static inline size_t FRAMES2SIZE(count_t frames)	86	static inline size_t FRAMES2SIZE(count_t frames)
87	{	87	{
88	return (size_t) (frames << FRAME_WIDTH);	88	return (size_t) (frames << FRAME_WIDTH);
89	}	89	}
90		90
91	#define IS_BUDDY_ORDER_OK(index, order) \	91	#define IS_BUDDY_ORDER_OK(index, order) \
92	((~(((unative_t) -1) << (order)) & (index)) == 0)	92	((~(((unative_t) -1) << (order)) & (index)) == 0)
93	#define IS_BUDDY_LEFT_BLOCK(zone, frame) \	93	#define IS_BUDDY_LEFT_BLOCK(zone, frame) \
94	(((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)	94	(((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
95	#define IS_BUDDY_RIGHT_BLOCK(zone, frame) \	95	#define IS_BUDDY_RIGHT_BLOCK(zone, frame) \
96	(((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)	96	(((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
97	#define IS_BUDDY_LEFT_BLOCK_ABS(zone, frame) \	97	#define IS_BUDDY_LEFT_BLOCK_ABS(zone, frame) \
98	(((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)	98	(((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
99	#define IS_BUDDY_RIGHT_BLOCK_ABS(zone, frame) \	99	#define IS_BUDDY_RIGHT_BLOCK_ABS(zone, frame) \
100	(((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)	100	(((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
101		101
102	#define frame_alloc(order, flags) \	102	#define frame_alloc(order, flags) \
103	frame_alloc_generic(order, flags, NULL)	103	frame_alloc_generic(order, flags, NULL)
104		104
105	extern void frame_init(void);	105	extern void frame_init(void);
106	extern void frame_alloc_generic(uint8_t, int, unsigned int );	106	extern void frame_alloc_generic(uint8_t, int, unsigned int );
107	extern void frame_free(uintptr_t);	107	extern void frame_free(uintptr_t);
108	extern void frame_reference_add(pfn_t);	108	extern void frame_reference_add(pfn_t);
109		109
110	extern int zone_create(pfn_t, count_t, pfn_t, int);	110	extern int zone_create(pfn_t, count_t, pfn_t, int);
111	extern void *frame_get_parent(pfn_t, unsigned int);	111	extern void *frame_get_parent(pfn_t, unsigned int);
112	extern void frame_set_parent(pfn_t, void *, unsigned int);	112	extern void frame_set_parent(pfn_t, void *, unsigned int);
113	extern void frame_mark_unavailable(pfn_t, count_t);	113	extern void frame_mark_unavailable(pfn_t, count_t);
114	extern uintptr_t zone_conf_size(count_t);	114	extern uintptr_t zone_conf_size(count_t);
115	extern void zone_merge(unsigned int, unsigned int);	115	extern void zone_merge(unsigned int, unsigned int);
116	extern void zone_merge_all(void);	116	extern void zone_merge_all(void);
117	extern uint64_t zone_total_size(void);	117	extern uint64_t zone_total_size(void);
118		118
119	/*	119	/*
120	* Console functions	120	* Console functions
121	*/	121	*/
122	extern void zone_print_list(void);	122	extern void zone_print_list(void);
123	extern void zone_print_one(unsigned int);	123	extern void zone_print_one(unsigned int);
124		124
125	#endif	125	#endif
126		126
127	/** @}	127	/** @}
128	*/	128	*/
129		129