WebSVN – HelenOS-historic – Diff – /kernel/trunk/arch/ppc32/include/mm/page.h


/*
 * Copyright (C) 2005 Martin Decky
 * 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 ppc32mm
 * @{
 */
/** @file
 */
 
#ifndef __ppc32_PAGE_H__
#define __ppc32_PAGE_H__
 
#include <arch/mm/frame.h>
 
#define PAGE_WIDTH  FRAME_WIDTH
#define PAGE_SIZE   FRAME_SIZE
 
#ifdef KERNEL
 
#ifndef __ASM__
#   define KA2PA(x) (((uintptr_t) (x)) - 0x80000000)
#   define PA2KA(x) (((uintptr_t) (x)) + 0x80000000)
#else
#   define KA2PA(x) ((x) - 0x80000000)
#   define PA2KA(x) ((x) + 0x80000000)
#endif
 
/*
 * Implementation of generic 4-level page table interface,
 * the hardware Page Hash Table is used as cache.
 *
 * Page table layout:
 * - 32-bit virtual addressess
 * - Offset is 12 bits => pages are 4K long
 * - PTL0 has 1024 entries (10 bits)
 * - PTL1 is not used
 * - PTL2 is not used
 * - PLT3 has 1024 entries (10 bits)
 */
 
#define PTL0_ENTRIES_ARCH   1024
#define PTL1_ENTRIES_ARCH   0
#define PTL2_ENTRIES_ARCH   0
#define PTL3_ENTRIES_ARCH   1024
 
#define PTL0_INDEX_ARCH(vaddr)  (((vaddr) >> 22) & 0x3ff)
#define PTL1_INDEX_ARCH(vaddr)  0
#define PTL2_INDEX_ARCH(vaddr)  0
#define PTL3_INDEX_ARCH(vaddr)  (((vaddr) >> 12) & 0x3ff)
 
#define GET_PTL1_ADDRESS_ARCH(ptl0, i)      (((pte_t *) (ptl0))[(i)].pfn << 12)
#define GET_PTL2_ADDRESS_ARCH(ptl1, i)      (ptl1)
#define GET_PTL3_ADDRESS_ARCH(ptl2, i)      (ptl2)
#define GET_FRAME_ADDRESS_ARCH(ptl3, i)     (((pte_t *) (ptl3))[(i)].pfn << 12)
 
#define SET_PTL0_ADDRESS_ARCH(ptl0)
#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a)   (((pte_t *) (ptl0))[(i)].pfn = (a) >> 12)
#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a)
#define SET_PTL3_ADDRESS_ARCH(ptl2, i, a)
#define SET_FRAME_ADDRESS_ARCH(ptl3, i, a)  (((pte_t *) (ptl3))[(i)].pfn = (a) >> 12)
 
#define GET_PTL1_FLAGS_ARCH(ptl0, i)        get_pt_flags((pte_t *) (ptl0), (index_t) (i))
#define GET_PTL2_FLAGS_ARCH(ptl1, i)        PAGE_PRESENT
#define GET_PTL3_FLAGS_ARCH(ptl2, i)        PAGE_PRESENT
#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)
#define SET_PTL3_FLAGS_ARCH(ptl2, i, x)
#define SET_FRAME_FLAGS_ARCH(ptl3, i, x)    set_pt_flags((pte_t *) (ptl3), (index_t) (i), (x))
 
#define PTE_VALID_ARCH(pte)         (*((uint32_t *) (pte)) != 0)
#define PTE_PRESENT_ARCH(pte)           ((pte)->p != 0)
#define PTE_GET_FRAME_ARCH(pte)         ((pte)->pfn << 12)
#define PTE_WRITABLE_ARCH(pte)          1
#define PTE_EXECUTABLE_ARCH(pte)        1
 
#ifndef __ASM__
 
#include <mm/page.h>
#include <arch/mm/frame.h>
#include <arch/types.h>
 
static inline int get_pt_flags(pte_t *pt, index_t i)
{
    pte_t *p = &pt[i];
   
    return (
        (1 << PAGE_CACHEABLE_SHIFT) |
        ((!p->p) << PAGE_PRESENT_SHIFT) |
        (1 << PAGE_USER_SHIFT) |
        (1 << PAGE_READ_SHIFT) |
        (1 << PAGE_WRITE_SHIFT) |
        (1 << PAGE_EXEC_SHIFT) |
        (p->g << PAGE_GLOBAL_SHIFT)
    );
}
 
static inline void set_pt_flags(pte_t *pt, index_t i, int flags)
{
    pte_t *p = &pt[i];
   
    p->p = !(flags & PAGE_NOT_PRESENT);
    p->g = (flags & PAGE_GLOBAL) != 0;
    p->valid = 1;
}
 
extern void page_arch_init(void);
 
#endif /* __ASM__ */
 
#endif /* KERNEL */
 
#endif
 
/** @}
 */
 

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/arch/ppc32/include/mm/page.h – Rev 1730 → 1780

Rev 1730		Rev 1780
1	/*	1	/*
2	* Copyright (C) 2005 Martin Decky	2	* Copyright (C) 2005 Martin Decky
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	/** @addtogroup ppc32mm	29	/** @addtogroup ppc32mm
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#ifndef __ppc32_PAGE_H__	35	#ifndef __ppc32_PAGE_H__
36	#define __ppc32_PAGE_H__	36	#define __ppc32_PAGE_H__
37		37
38	#include <arch/mm/frame.h>	38	#include <arch/mm/frame.h>
39		39
40	#define PAGE_WIDTH FRAME_WIDTH	40	#define PAGE_WIDTH FRAME_WIDTH
41	#define PAGE_SIZE FRAME_SIZE	41	#define PAGE_SIZE FRAME_SIZE
42		42
43	#ifdef KERNEL	43	#ifdef KERNEL
44		44
45	#ifndef __ASM__	45	#ifndef __ASM__
46	# define KA2PA(x) (((__address) (x)) - 0x80000000)	46	# define KA2PA(x) (((uintptr_t) (x)) - 0x80000000)
47	# define PA2KA(x) (((__address) (x)) + 0x80000000)	47	# define PA2KA(x) (((uintptr_t) (x)) + 0x80000000)
48	#else	48	#else
49	# define KA2PA(x) ((x) - 0x80000000)	49	# define KA2PA(x) ((x) - 0x80000000)
50	# define PA2KA(x) ((x) + 0x80000000)	50	# define PA2KA(x) ((x) + 0x80000000)
51	#endif	51	#endif
52		52
53	/*	53	/*
54	* Implementation of generic 4-level page table interface,	54	* Implementation of generic 4-level page table interface,
55	* the hardware Page Hash Table is used as cache.	55	* the hardware Page Hash Table is used as cache.
56	*	56	*
57	* Page table layout:	57	* Page table layout:
58	* - 32-bit virtual addressess	58	* - 32-bit virtual addressess
59	* - Offset is 12 bits => pages are 4K long	59	* - Offset is 12 bits => pages are 4K long
60	* - PTL0 has 1024 entries (10 bits)	60	* - PTL0 has 1024 entries (10 bits)
61	* - PTL1 is not used	61	* - PTL1 is not used
62	* - PTL2 is not used	62	* - PTL2 is not used
63	* - PLT3 has 1024 entries (10 bits)	63	* - PLT3 has 1024 entries (10 bits)
64	*/	64	*/
65		65
66	#define PTL0_ENTRIES_ARCH 1024	66	#define PTL0_ENTRIES_ARCH 1024
67	#define PTL1_ENTRIES_ARCH 0	67	#define PTL1_ENTRIES_ARCH 0
68	#define PTL2_ENTRIES_ARCH 0	68	#define PTL2_ENTRIES_ARCH 0
69	#define PTL3_ENTRIES_ARCH 1024	69	#define PTL3_ENTRIES_ARCH 1024
70		70
71	#define PTL0_INDEX_ARCH(vaddr) (((vaddr) >> 22) & 0x3ff)	71	#define PTL0_INDEX_ARCH(vaddr) (((vaddr) >> 22) & 0x3ff)
72	#define PTL1_INDEX_ARCH(vaddr) 0	72	#define PTL1_INDEX_ARCH(vaddr) 0
73	#define PTL2_INDEX_ARCH(vaddr) 0	73	#define PTL2_INDEX_ARCH(vaddr) 0
74	#define PTL3_INDEX_ARCH(vaddr) (((vaddr) >> 12) & 0x3ff)	74	#define PTL3_INDEX_ARCH(vaddr) (((vaddr) >> 12) & 0x3ff)
75		75
76	#define GET_PTL1_ADDRESS_ARCH(ptl0, i) (((pte_t *) (ptl0))[(i)].pfn << 12)	76	#define GET_PTL1_ADDRESS_ARCH(ptl0, i) (((pte_t *) (ptl0))[(i)].pfn << 12)
77	#define GET_PTL2_ADDRESS_ARCH(ptl1, i) (ptl1)	77	#define GET_PTL2_ADDRESS_ARCH(ptl1, i) (ptl1)
78	#define GET_PTL3_ADDRESS_ARCH(ptl2, i) (ptl2)	78	#define GET_PTL3_ADDRESS_ARCH(ptl2, i) (ptl2)
79	#define GET_FRAME_ADDRESS_ARCH(ptl3, i) (((pte_t *) (ptl3))[(i)].pfn << 12)	79	#define GET_FRAME_ADDRESS_ARCH(ptl3, i) (((pte_t *) (ptl3))[(i)].pfn << 12)
80		80
81	#define SET_PTL0_ADDRESS_ARCH(ptl0)	81	#define SET_PTL0_ADDRESS_ARCH(ptl0)
82	#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a) (((pte_t *) (ptl0))[(i)].pfn = (a) >> 12)	82	#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a) (((pte_t *) (ptl0))[(i)].pfn = (a) >> 12)
83	#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a)	83	#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a)
84	#define SET_PTL3_ADDRESS_ARCH(ptl2, i, a)	84	#define SET_PTL3_ADDRESS_ARCH(ptl2, i, a)
85	#define SET_FRAME_ADDRESS_ARCH(ptl3, i, a) (((pte_t *) (ptl3))[(i)].pfn = (a) >> 12)	85	#define SET_FRAME_ADDRESS_ARCH(ptl3, i, a) (((pte_t *) (ptl3))[(i)].pfn = (a) >> 12)
86		86
87	#define GET_PTL1_FLAGS_ARCH(ptl0, i) get_pt_flags((pte_t *) (ptl0), (index_t) (i))	87	#define GET_PTL1_FLAGS_ARCH(ptl0, i) get_pt_flags((pte_t *) (ptl0), (index_t) (i))
88	#define GET_PTL2_FLAGS_ARCH(ptl1, i) PAGE_PRESENT	88	#define GET_PTL2_FLAGS_ARCH(ptl1, i) PAGE_PRESENT
89	#define GET_PTL3_FLAGS_ARCH(ptl2, i) PAGE_PRESENT	89	#define GET_PTL3_FLAGS_ARCH(ptl2, i) PAGE_PRESENT
90	#define GET_FRAME_FLAGS_ARCH(ptl3, i) get_pt_flags((pte_t *) (ptl3), (index_t) (i))	90	#define GET_FRAME_FLAGS_ARCH(ptl3, i) get_pt_flags((pte_t *) (ptl3), (index_t) (i))
91		91
92	#define SET_PTL1_FLAGS_ARCH(ptl0, i, x) set_pt_flags((pte_t *) (ptl0), (index_t) (i), (x))	92	#define SET_PTL1_FLAGS_ARCH(ptl0, i, x) set_pt_flags((pte_t *) (ptl0), (index_t) (i), (x))
93	#define SET_PTL2_FLAGS_ARCH(ptl1, i, x)	93	#define SET_PTL2_FLAGS_ARCH(ptl1, i, x)
94	#define SET_PTL3_FLAGS_ARCH(ptl2, i, x)	94	#define SET_PTL3_FLAGS_ARCH(ptl2, i, x)
95	#define SET_FRAME_FLAGS_ARCH(ptl3, i, x) set_pt_flags((pte_t *) (ptl3), (index_t) (i), (x))	95	#define SET_FRAME_FLAGS_ARCH(ptl3, i, x) set_pt_flags((pte_t *) (ptl3), (index_t) (i), (x))
96		96
97	#define PTE_VALID_ARCH(pte) (((__u32 ) (pte)) != 0)	97	#define PTE_VALID_ARCH(pte) (((uint32_t ) (pte)) != 0)
98	#define PTE_PRESENT_ARCH(pte) ((pte)->p != 0)	98	#define PTE_PRESENT_ARCH(pte) ((pte)->p != 0)
99	#define PTE_GET_FRAME_ARCH(pte) ((pte)->pfn << 12)	99	#define PTE_GET_FRAME_ARCH(pte) ((pte)->pfn << 12)
100	#define PTE_WRITABLE_ARCH(pte) 1	100	#define PTE_WRITABLE_ARCH(pte) 1
101	#define PTE_EXECUTABLE_ARCH(pte) 1	101	#define PTE_EXECUTABLE_ARCH(pte) 1
102		102
103	#ifndef __ASM__	103	#ifndef __ASM__
104		104
105	#include <mm/page.h>	105	#include <mm/page.h>
106	#include <arch/mm/frame.h>	106	#include <arch/mm/frame.h>
107	#include <arch/types.h>	107	#include <arch/types.h>
108		108
109	static inline int get_pt_flags(pte_t *pt, index_t i)	109	static inline int get_pt_flags(pte_t *pt, index_t i)
110	{	110	{
111	pte_t *p = &pt[i];	111	pte_t *p = &pt[i];
112		112
113	return (	113	return (
114	(1 << PAGE_CACHEABLE_SHIFT) \|	114	(1 << PAGE_CACHEABLE_SHIFT) \|
115	((!p->p) << PAGE_PRESENT_SHIFT) \|	115	((!p->p) << PAGE_PRESENT_SHIFT) \|
116	(1 << PAGE_USER_SHIFT) \|	116	(1 << PAGE_USER_SHIFT) \|
117	(1 << PAGE_READ_SHIFT) \|	117	(1 << PAGE_READ_SHIFT) \|
118	(1 << PAGE_WRITE_SHIFT) \|	118	(1 << PAGE_WRITE_SHIFT) \|
119	(1 << PAGE_EXEC_SHIFT) \|	119	(1 << PAGE_EXEC_SHIFT) \|
120	(p->g << PAGE_GLOBAL_SHIFT)	120	(p->g << PAGE_GLOBAL_SHIFT)
121	);	121	);
122	}	122	}
123		123
124	static inline void set_pt_flags(pte_t *pt, index_t i, int flags)	124	static inline void set_pt_flags(pte_t *pt, index_t i, int flags)
125	{	125	{
126	pte_t *p = &pt[i];	126	pte_t *p = &pt[i];
127		127
128	p->p = !(flags & PAGE_NOT_PRESENT);	128	p->p = !(flags & PAGE_NOT_PRESENT);
129	p->g = (flags & PAGE_GLOBAL) != 0;	129	p->g = (flags & PAGE_GLOBAL) != 0;
130	p->valid = 1;	130	p->valid = 1;
131	}	131	}
132		132
133	extern void page_arch_init(void);	133	extern void page_arch_init(void);
134		134
135	#endif /* __ASM__ */	135	#endif /* __ASM__ */
136		136
137	#endif /* KERNEL */	137	#endif /* KERNEL */
138		138
139	#endif	139	#endif
140		140
141	/** @}	141	/** @}
142	*/	142	*/
143		143