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.
 */
 
#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 neighberhood zones */
 
#define FRAME_KA        0x1 /* skip frames conflicting with user address space */
#define FRAME_PANIC     0x2 /* panic on failure */
#define FRAME_ATOMIC            0x4 /* do not panic and do not sleep on failure */
#define FRAME_NO_RECLAIM        0x8     /* 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 */
 
/* Return true if the interlvals overlap */
static inline int overlaps(__address s1,__address sz1, __address s2, __address sz2)
{
    __address e1 = s1+sz1;
    __address e2 = s2+sz2;
 
    return s1 < e2 && s2 < e1;
}
 
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, NULL)
#define frame_alloc_rc(order, flags, status)            frame_alloc_generic(order, flags, status, NULL)
#define frame_alloc_rc_zone(order, flags, status, zone)     frame_alloc_generic(order, flags, status, zone)
 
extern void frame_init(void);
extern pfn_t frame_alloc_generic(__u8 order, int flags, int * status, int *pzone);
extern void frame_free(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 935 → 946

Rev 935		Rev 946
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	#ifndef __FRAME_H__	30	#ifndef __FRAME_H__
31	#define __FRAME_H__	31	#define __FRAME_H__
32		32
33	#include <arch/types.h>	33	#include <arch/types.h>
34	#include <typedefs.h>	34	#include <typedefs.h>
35	#include <adt/list.h>	35	#include <adt/list.h>
36	#include <synch/spinlock.h>	36	#include <synch/spinlock.h>
37	#include <mm/buddy.h>	37	#include <mm/buddy.h>
38	#include <arch/mm/page.h>	38	#include <arch/mm/page.h>
39	#include <arch/mm/frame.h>	39	#include <arch/mm/frame.h>
40		40
41	#define ONE_FRAME 0	41	#define ONE_FRAME 0
42	#define TWO_FRAMES 1	42	#define TWO_FRAMES 1
43		43
44	#ifdef ARCH_STACK_FRAMES	44	#ifdef ARCH_STACK_FRAMES
45	#define STACK_FRAMES ARCH_STACK_FRAMES	45	#define STACK_FRAMES ARCH_STACK_FRAMES
46	#else	46	#else
47	#define STACK_FRAMES ONE_FRAME	47	#define STACK_FRAMES ONE_FRAME
48	#endif	48	#endif
49		49
50		50
51	#define ZONES_MAX 16 /*< Maximum number of zones in system /	51	#define ZONES_MAX 16 /*< Maximum number of zones in system /
52		52
53	#define ZONE_JOIN 0x1 /*< If possible, merge with neighberhood zones /	53	#define ZONE_JOIN 0x1 /*< If possible, merge with neighberhood zones /
54		54
55	#define FRAME_KA 0x1 /* skip frames conflicting with user address space */	55	#define FRAME_KA 0x1 /* skip frames conflicting with user address space */
56	#define FRAME_PANIC 0x2 /* panic on failure */	56	#define FRAME_PANIC 0x2 /* panic on failure */
57	#define FRAME_ATOMIC 0x4 /* do not panic and do not sleep on failure */	57	#define FRAME_ATOMIC 0x4 /* do not panic and do not sleep on failure */
58	#define FRAME_NO_RECLAIM 0x8 /* do not start reclaiming when no free memory */	58	#define FRAME_NO_RECLAIM 0x8 /* do not start reclaiming when no free memory */
59		59
60	#define FRAME_OK 0 /* frame_alloc return status */	60	#define FRAME_OK 0 /* frame_alloc return status */
61	#define FRAME_NO_MEMORY 1 /* frame_alloc return status */	61	#define FRAME_NO_MEMORY 1 /* frame_alloc return status */
62	#define FRAME_ERROR 2 /* frame_alloc return status */	62	#define FRAME_ERROR 2 /* frame_alloc return status */
63		63
64	/* Return true if the interlvals overlap */	64	/* Return true if the interlvals overlap */
65	static inline int overlaps(__address s1,__address sz1, __address s2, __address sz2)	65	static inline int overlaps(__address s1,__address sz1, __address s2, __address sz2)
66	{	66	{
67	__address e1 = s1+sz1;	67	__address e1 = s1+sz1;
68	__address e2 = s2+sz2;	68	__address e2 = s2+sz2;
69		69
70	return s1 < e2 && s2 < e1;	70	return s1 < e2 && s2 < e1;
71	}	71	}
72		72
73	static inline __address PFN2ADDR(pfn_t frame)	73	static inline __address PFN2ADDR(pfn_t frame)
74	{	74	{
75	return (__address)(frame << FRAME_WIDTH);	75	return (__address)(frame << FRAME_WIDTH);
76	}	76	}
77		77
78	static inline pfn_t ADDR2PFN(__address addr)	78	static inline pfn_t ADDR2PFN(__address addr)
79	{	79	{
80	return (pfn_t)(addr >> FRAME_WIDTH);	80	return (pfn_t)(addr >> FRAME_WIDTH);
81	}	81	}
82		82
83	static inline count_t SIZE2FRAMES(size_t size)	83	static inline count_t SIZE2FRAMES(size_t size)
84	{	84	{
85	if (!size)	85	if (!size)
86	return 0;	86	return 0;
87	return (count_t)((size-1) >> FRAME_WIDTH)+1;	87	return (count_t)((size-1) >> FRAME_WIDTH)+1;
88	}	88	}
89		89
90	#define IS_BUDDY_ORDER_OK(index, order) ((~(((__native) -1) << (order)) & (index)) == 0)	90	#define IS_BUDDY_ORDER_OK(index, order) ((~(((__native) -1) << (order)) & (index)) == 0)
91	#define IS_BUDDY_LEFT_BLOCK(zone, frame) (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)	91	#define IS_BUDDY_LEFT_BLOCK(zone, frame) (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
92	#define IS_BUDDY_RIGHT_BLOCK(zone, frame) (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)	92	#define IS_BUDDY_RIGHT_BLOCK(zone, frame) (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
93	#define IS_BUDDY_LEFT_BLOCK_ABS(zone, frame) (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)	93	#define IS_BUDDY_LEFT_BLOCK_ABS(zone, frame) (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
94	#define IS_BUDDY_RIGHT_BLOCK_ABS(zone, frame) (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)	94	#define IS_BUDDY_RIGHT_BLOCK_ABS(zone, frame) (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
95		95
96	#define frame_alloc(order, flags) frame_alloc_generic(order, flags, NULL, NULL)	96	#define frame_alloc(order, flags) frame_alloc_generic(order, flags, NULL, NULL)
97	#define frame_alloc_rc(order, flags, status) frame_alloc_generic(order, flags, status, NULL)	97	#define frame_alloc_rc(order, flags, status) frame_alloc_generic(order, flags, status, NULL)
98	#define frame_alloc_rc_zone(order, flags, status, zone) frame_alloc_generic(order, flags, status, zone)	98	#define frame_alloc_rc_zone(order, flags, status, zone) frame_alloc_generic(order, flags, status, zone)
99		99
100	extern void frame_init(void);	100	extern void frame_init(void);
101	__address frame_alloc_generic(__u8 order, int flags, int * status, int *pzone);	101	extern pfn_t frame_alloc_generic(__u8 order, int flags, int * status, int *pzone);
102	extern void frame_free(__address addr);	102	extern void frame_free(pfn_t pfn);
103		103
104	extern int zone_create(pfn_t start, count_t count, pfn_t confframe, int flags);	104	extern int zone_create(pfn_t start, count_t count, pfn_t confframe, int flags);
105	void * frame_get_parent(pfn_t frame, int hint);	105	void * frame_get_parent(pfn_t frame, int hint);
106	void frame_set_parent(pfn_t frame, void *data, int hint);	106	void frame_set_parent(pfn_t frame, void *data, int hint);
107	void frame_mark_unavailable(pfn_t start, count_t count);	107	void frame_mark_unavailable(pfn_t start, count_t count);
108	__address zone_conf_size(count_t count);	108	__address zone_conf_size(count_t count);
109	void zone_merge(int z1, int z2);	109	void zone_merge(int z1, int z2);
110	void zone_merge_all(void);	110	void zone_merge_all(void);
111		111
112	/*	112	/*
113	* Console functions	113	* Console functions
114	*/	114	*/
115	extern void zone_print_list(void);	115	extern void zone_print_list(void);
116	void zone_print_one(int znum);	116	void zone_print_one(int znum);
117		117
118	#endif	118	#endif
119		119