WebSVN – HelenOS – Diff – /kernel/trunk/arch/amd64/include/mm/page.h


/*
 * Copyright (C) 2005 Ondrej Palkovsky
 * 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 __amd64_PAGE_H__
#define __amd64_PAGE_H__
 
#ifndef __ASM__
#  include <mm/page.h>
#  include <arch/mm/frame.h>
#  include <arch/types.h>
#endif
 
#define PAGE_WIDTH  FRAME_WIDTH
#define PAGE_SIZE   FRAME_SIZE
 
#ifndef __ASM__
# define KA2PA(x)      (((__address) (x)) - 0xffffffff80000000)
# define PA2KA(x)      (((__address) (x)) + 0xffffffff80000000)
#else
# define KA2PA(x)      ((x) - 0xffffffff80000000)
# define PA2KA(x)      ((x) + 0xffffffff80000000)
#endif
 
#define PTL0_INDEX_ARCH(vaddr)  (((vaddr)>>39)&0x1ff)
#define PTL1_INDEX_ARCH(vaddr)  (((vaddr)>>30)&0x1ff)
#define PTL2_INDEX_ARCH(vaddr)  (((vaddr)>>21)&0x1ff)
#define PTL3_INDEX_ARCH(vaddr)  (((vaddr)>>12)&0x1ff)
 
#define GET_PTL1_ADDRESS_ARCH(ptl0, i)      ((pte_t *) ((((__u64) ((pte_t *)(ptl0))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl0))[(i)].addr_32_51)<<32 )))
#define GET_PTL2_ADDRESS_ARCH(ptl1, i)      ((pte_t *) ((((__u64) ((pte_t *)(ptl1))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl1))[(i)].addr_32_51)<<32 )))
#define GET_PTL3_ADDRESS_ARCH(ptl2, i)      ((pte_t *) ((((__u64) ((pte_t *)(ptl2))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl2))[(i)].addr_32_51)<<32 )))
#define GET_FRAME_ADDRESS_ARCH(ptl3, i)     ((__address *) ((((__u64) ((pte_t *)(ptl3))[(i)].addr_12_31)<<12) | (((__u64) ((pte_t *)(ptl3))[(i)].addr_32_51)<<32 )))
 
#define SET_PTL0_ADDRESS_ARCH(ptl0)     (write_cr3((__address) (ptl0)))
#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a)   set_pt_addr((pte_t *)(ptl0), (index_t)(i), a)
#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a)       set_pt_addr((pte_t *)(ptl1), (index_t)(i), a)
#define SET_PTL3_ADDRESS_ARCH(ptl2, i, a)       set_pt_addr((pte_t *)(ptl2), (index_t)(i), a)
#define SET_FRAME_ADDRESS_ARCH(ptl3, i, a)  set_pt_addr((pte_t *)(ptl3), (index_t)(i), a)
 
#define GET_PTL1_FLAGS_ARCH(ptl0, i)        get_pt_flags((pte_t *)(ptl0), (index_t)(i))
#define GET_PTL2_FLAGS_ARCH(ptl1, i)        get_pt_flags((pte_t *)(ptl1), (index_t)(i))
#define GET_PTL3_FLAGS_ARCH(ptl2, i)        get_pt_flags((pte_t *)(ptl2), (index_t)(i))
#define GET_FRAME_FLAGS_ARCH(ptl3, i)       get_pt_flags((pte_t *)(ptl3), (index_t)(i))
 
#define SET_PTL1_FLAGS_ARCH(ptl0, i, x)     set_pt_flags((pte_t *)(ptl0), (index_t)(i), (x))
#define SET_PTL2_FLAGS_ARCH(ptl1, i, x)         set_pt_flags((pte_t *)(ptl1), (index_t)(i), (x))
#define SET_PTL3_FLAGS_ARCH(ptl2, i, x)         set_pt_flags((pte_t *)(ptl2), (index_t)(i), (x))
#define SET_FRAME_FLAGS_ARCH(ptl3, i, x)    set_pt_flags((pte_t *)(ptl3), (index_t)(i), (x))
 
#ifndef __ASM__
 
struct page_specifier {
    unsigned present : 1;
    unsigned writeable : 1;
    unsigned uaccessible : 1;
    unsigned page_write_through : 1;
    unsigned page_cache_disable : 1;
    unsigned accessed : 1;
    unsigned dirty : 1;
    unsigned unused: 1;
    unsigned global : 1;
    unsigned avl : 3;
    unsigned addr_12_31 : 30;
    unsigned addr_32_51 : 21;
    unsigned no_execute : 1;
} __attribute__ ((packed));
 
static inline int get_pt_flags(pte_t *pt, index_t i)
{
    pte_t *p = &pt[i];
   
    return (
        (!p->page_cache_disable)<<PAGE_CACHEABLE_SHIFT |
        (!p->present)<<PAGE_PRESENT_SHIFT |
        p->uaccessible<<PAGE_USER_SHIFT |
        1<<PAGE_READ_SHIFT |
        p->writeable<<PAGE_WRITE_SHIFT |
        (!p->no_execute)<<PAGE_EXEC_SHIFT
    );
}
 
static inline void set_pt_addr(pte_t *pt, index_t i, __address a)
{
    pte_t *p = &pt[i];
 
    p->addr_12_31 = (a >> 12) & 0xfffff;
    p->addr_32_51 = a >> 32;
}
 
static inline void set_pt_flags(pte_t *pt, index_t i, int flags)
{
    pte_t *p = &pt[i];
   
    p->page_cache_disable = !(flags & PAGE_CACHEABLE);
    p->present = !(flags & PAGE_NOT_PRESENT);
    p->uaccessible = (flags & PAGE_USER) != 0;
    p->writeable = (flags & PAGE_WRITE) != 0;
    p->no_execute = (flags & PAGE_EXEC) == 0;
}
 
extern void page_arch_init(void);
 
#endif
 
#endif
 

Subversion Repositories HelenOS

(root)/kernel/trunk/arch/amd64/include/mm/page.h @ 977 – Rev 760 → 765

Rev 760		Rev 765
1	/*	1	/*
2	* Copyright (C) 2005 Ondrej Palkovsky	2	* Copyright (C) 2005 Ondrej Palkovsky
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 __amd64_PAGE_H__	29	#ifndef __amd64_PAGE_H__
30	#define __amd64_PAGE_H__	30	#define __amd64_PAGE_H__
31		31
32	#ifndef __ASM__	32	#ifndef __ASM__
33	# include <mm/page.h>	33	# include <mm/page.h>
34	# include <arch/mm/frame.h>	34	# include <arch/mm/frame.h>
35	# include <arch/types.h>	35	# include <arch/types.h>
36	#endif	36	#endif
37		37
-		38	#define PAGE_WIDTH FRAME_WIDTH
38	#define PAGE_SIZE FRAME_SIZE	39	#define PAGE_SIZE FRAME_SIZE
39		40
40	#ifndef __ASM__	41	#ifndef __ASM__
41	# define KA2PA(x) (((__address) (x)) - 0xffffffff80000000)	42	# define KA2PA(x) (((__address) (x)) - 0xffffffff80000000)
42	# define PA2KA(x) (((__address) (x)) + 0xffffffff80000000)	43	# define PA2KA(x) (((__address) (x)) + 0xffffffff80000000)
43	#else	44	#else
44	# define KA2PA(x) ((x) - 0xffffffff80000000)	45	# define KA2PA(x) ((x) - 0xffffffff80000000)
45	# define PA2KA(x) ((x) + 0xffffffff80000000)	46	# define PA2KA(x) ((x) + 0xffffffff80000000)
46	#endif	47	#endif
47		48
48	#define PTL0_INDEX_ARCH(vaddr) (((vaddr)>>39)&0x1ff)	49	#define PTL0_INDEX_ARCH(vaddr) (((vaddr)>>39)&0x1ff)
49	#define PTL1_INDEX_ARCH(vaddr) (((vaddr)>>30)&0x1ff)	50	#define PTL1_INDEX_ARCH(vaddr) (((vaddr)>>30)&0x1ff)
50	#define PTL2_INDEX_ARCH(vaddr) (((vaddr)>>21)&0x1ff)	51	#define PTL2_INDEX_ARCH(vaddr) (((vaddr)>>21)&0x1ff)
51	#define PTL3_INDEX_ARCH(vaddr) (((vaddr)>>12)&0x1ff)	52	#define PTL3_INDEX_ARCH(vaddr) (((vaddr)>>12)&0x1ff)
52		53
53	#define GET_PTL1_ADDRESS_ARCH(ptl0, i) ((pte_t ) ((((__u64) ((pte_t )(ptl0))[(i)].addr_12_31)<<12) \| (((__u64) ((pte_t *)(ptl0))[(i)].addr_32_51)<<32 )))	54	#define GET_PTL1_ADDRESS_ARCH(ptl0, i) ((pte_t ) ((((__u64) ((pte_t )(ptl0))[(i)].addr_12_31)<<12) \| (((__u64) ((pte_t *)(ptl0))[(i)].addr_32_51)<<32 )))
54	#define GET_PTL2_ADDRESS_ARCH(ptl1, i) ((pte_t ) ((((__u64) ((pte_t )(ptl1))[(i)].addr_12_31)<<12) \| (((__u64) ((pte_t *)(ptl1))[(i)].addr_32_51)<<32 )))	55	#define GET_PTL2_ADDRESS_ARCH(ptl1, i) ((pte_t ) ((((__u64) ((pte_t )(ptl1))[(i)].addr_12_31)<<12) \| (((__u64) ((pte_t *)(ptl1))[(i)].addr_32_51)<<32 )))
55	#define GET_PTL3_ADDRESS_ARCH(ptl2, i) ((pte_t ) ((((__u64) ((pte_t )(ptl2))[(i)].addr_12_31)<<12) \| (((__u64) ((pte_t *)(ptl2))[(i)].addr_32_51)<<32 )))	56	#define GET_PTL3_ADDRESS_ARCH(ptl2, i) ((pte_t ) ((((__u64) ((pte_t )(ptl2))[(i)].addr_12_31)<<12) \| (((__u64) ((pte_t *)(ptl2))[(i)].addr_32_51)<<32 )))
56	#define GET_FRAME_ADDRESS_ARCH(ptl3, i) ((__address ) ((((__u64) ((pte_t )(ptl3))[(i)].addr_12_31)<<12) \| (((__u64) ((pte_t *)(ptl3))[(i)].addr_32_51)<<32 )))	57	#define GET_FRAME_ADDRESS_ARCH(ptl3, i) ((__address ) ((((__u64) ((pte_t )(ptl3))[(i)].addr_12_31)<<12) \| (((__u64) ((pte_t *)(ptl3))[(i)].addr_32_51)<<32 )))
57		58
58	#define SET_PTL0_ADDRESS_ARCH(ptl0) (write_cr3((__address) (ptl0)))	59	#define SET_PTL0_ADDRESS_ARCH(ptl0) (write_cr3((__address) (ptl0)))
59	#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a) set_pt_addr((pte_t *)(ptl0), (index_t)(i), a)	60	#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a) set_pt_addr((pte_t *)(ptl0), (index_t)(i), a)
60	#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a) set_pt_addr((pte_t *)(ptl1), (index_t)(i), a)	61	#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a) set_pt_addr((pte_t *)(ptl1), (index_t)(i), a)
61	#define SET_PTL3_ADDRESS_ARCH(ptl2, i, a) set_pt_addr((pte_t *)(ptl2), (index_t)(i), a)	62	#define SET_PTL3_ADDRESS_ARCH(ptl2, i, a) set_pt_addr((pte_t *)(ptl2), (index_t)(i), a)
62	#define SET_FRAME_ADDRESS_ARCH(ptl3, i, a) set_pt_addr((pte_t *)(ptl3), (index_t)(i), a)	63	#define SET_FRAME_ADDRESS_ARCH(ptl3, i, a) set_pt_addr((pte_t *)(ptl3), (index_t)(i), a)
63		64
64	#define GET_PTL1_FLAGS_ARCH(ptl0, i) get_pt_flags((pte_t *)(ptl0), (index_t)(i))	65	#define GET_PTL1_FLAGS_ARCH(ptl0, i) get_pt_flags((pte_t *)(ptl0), (index_t)(i))
65	#define GET_PTL2_FLAGS_ARCH(ptl1, i) get_pt_flags((pte_t *)(ptl1), (index_t)(i))	66	#define GET_PTL2_FLAGS_ARCH(ptl1, i) get_pt_flags((pte_t *)(ptl1), (index_t)(i))
66	#define GET_PTL3_FLAGS_ARCH(ptl2, i) get_pt_flags((pte_t *)(ptl2), (index_t)(i))	67	#define GET_PTL3_FLAGS_ARCH(ptl2, i) get_pt_flags((pte_t *)(ptl2), (index_t)(i))
67	#define GET_FRAME_FLAGS_ARCH(ptl3, i) get_pt_flags((pte_t *)(ptl3), (index_t)(i))	68	#define GET_FRAME_FLAGS_ARCH(ptl3, i) get_pt_flags((pte_t *)(ptl3), (index_t)(i))
68		69
69	#define SET_PTL1_FLAGS_ARCH(ptl0, i, x) set_pt_flags((pte_t *)(ptl0), (index_t)(i), (x))	70	#define SET_PTL1_FLAGS_ARCH(ptl0, i, x) set_pt_flags((pte_t *)(ptl0), (index_t)(i), (x))
70	#define SET_PTL2_FLAGS_ARCH(ptl1, i, x) set_pt_flags((pte_t *)(ptl1), (index_t)(i), (x))	71	#define SET_PTL2_FLAGS_ARCH(ptl1, i, x) set_pt_flags((pte_t *)(ptl1), (index_t)(i), (x))
71	#define SET_PTL3_FLAGS_ARCH(ptl2, i, x) set_pt_flags((pte_t *)(ptl2), (index_t)(i), (x))	72	#define SET_PTL3_FLAGS_ARCH(ptl2, i, x) set_pt_flags((pte_t *)(ptl2), (index_t)(i), (x))
72	#define SET_FRAME_FLAGS_ARCH(ptl3, i, x) set_pt_flags((pte_t *)(ptl3), (index_t)(i), (x))	73	#define SET_FRAME_FLAGS_ARCH(ptl3, i, x) set_pt_flags((pte_t *)(ptl3), (index_t)(i), (x))
73		74
74	#ifndef __ASM__	75	#ifndef __ASM__
75		76
76	struct page_specifier {	77	struct page_specifier {
77	unsigned present : 1;	78	unsigned present : 1;
78	unsigned writeable : 1;	79	unsigned writeable : 1;
79	unsigned uaccessible : 1;	80	unsigned uaccessible : 1;
80	unsigned page_write_through : 1;	81	unsigned page_write_through : 1;
81	unsigned page_cache_disable : 1;	82	unsigned page_cache_disable : 1;
82	unsigned accessed : 1;	83	unsigned accessed : 1;
83	unsigned dirty : 1;	84	unsigned dirty : 1;
84	unsigned unused: 1;	85	unsigned unused: 1;
85	unsigned global : 1;	86	unsigned global : 1;
86	unsigned avl : 3;	87	unsigned avl : 3;
87	unsigned addr_12_31 : 30;	88	unsigned addr_12_31 : 30;
88	unsigned addr_32_51 : 21;	89	unsigned addr_32_51 : 21;
89	unsigned no_execute : 1;	90	unsigned no_execute : 1;
90	} __attribute__ ((packed));	91	} __attribute__ ((packed));
91		92
92	static inline int get_pt_flags(pte_t *pt, index_t i)	93	static inline int get_pt_flags(pte_t *pt, index_t i)
93	{	94	{
94	pte_t *p = &pt[i];	95	pte_t *p = &pt[i];
95		96
96	return (	97	return (
97	(!p->page_cache_disable)<<PAGE_CACHEABLE_SHIFT \|	98	(!p->page_cache_disable)<<PAGE_CACHEABLE_SHIFT \|
98	(!p->present)<<PAGE_PRESENT_SHIFT \|	99	(!p->present)<<PAGE_PRESENT_SHIFT \|
99	p->uaccessible<<PAGE_USER_SHIFT \|	100	p->uaccessible<<PAGE_USER_SHIFT \|
100	1<<PAGE_READ_SHIFT \|	101	1<<PAGE_READ_SHIFT \|
101	p->writeable<<PAGE_WRITE_SHIFT \|	102	p->writeable<<PAGE_WRITE_SHIFT \|
102	(!p->no_execute)<<PAGE_EXEC_SHIFT	103	(!p->no_execute)<<PAGE_EXEC_SHIFT
103	);	104	);
104	}	105	}
105		106
106	static inline void set_pt_addr(pte_t *pt, index_t i, __address a)	107	static inline void set_pt_addr(pte_t *pt, index_t i, __address a)
107	{	108	{
108	pte_t *p = &pt[i];	109	pte_t *p = &pt[i];
109		110
110	p->addr_12_31 = (a >> 12) & 0xfffff;	111	p->addr_12_31 = (a >> 12) & 0xfffff;
111	p->addr_32_51 = a >> 32;	112	p->addr_32_51 = a >> 32;
112	}	113	}
113		114
114	static inline void set_pt_flags(pte_t *pt, index_t i, int flags)	115	static inline void set_pt_flags(pte_t *pt, index_t i, int flags)
115	{	116	{
116	pte_t *p = &pt[i];	117	pte_t *p = &pt[i];
117		118
118	p->page_cache_disable = !(flags & PAGE_CACHEABLE);	119	p->page_cache_disable = !(flags & PAGE_CACHEABLE);
119	p->present = !(flags & PAGE_NOT_PRESENT);	120	p->present = !(flags & PAGE_NOT_PRESENT);
120	p->uaccessible = (flags & PAGE_USER) != 0;	121	p->uaccessible = (flags & PAGE_USER) != 0;
121	p->writeable = (flags & PAGE_WRITE) != 0;	122	p->writeable = (flags & PAGE_WRITE) != 0;
122	p->no_execute = (flags & PAGE_EXEC) == 0;	123	p->no_execute = (flags & PAGE_EXEC) == 0;
123	}	124	}
124		125
125	extern void page_arch_init(void);	126	extern void page_arch_init(void);
126		127
127	#endif	128	#endif
128		129
129	#endif	130	#endif
130		131