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| 1 | /* |
1 | /* |
| 2 | * Copyright (C) 2005 Jakub Jermar |
2 | * Copyright (C) 2005 Jakub Jermar |
| 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 __ia64_PAGE_H__ |
29 | #ifndef __ia64_PAGE_H__ |
| 30 | #define __ia64_PAGE_H__ |
30 | #define __ia64_PAGE_H__ |
| 31 | 31 | ||
| 32 | #include <arch/types.h> |
32 | #include <arch/types.h> |
| 33 | #include <arch/mm/frame.h> |
33 | #include <arch/mm/frame.h> |
| 34 | 34 | ||
| 35 | #define PAGE_SIZE FRAME_SIZE |
35 | #define PAGE_SIZE FRAME_SIZE |
| 36 | 36 | ||
| 37 | #define KA2PA(x) ((__address) (x)) |
37 | #define KA2PA(x) ((__address) (x)) |
| 38 | #define PA2KA(x) ((__address) (x)) |
38 | #define PA2KA(x) ((__address) (x)) |
| 39 | 39 | ||
| 40 | #define GET_PTL0_ADDRESS_ARCH() ((pte_t *) 0) |
40 | #define GET_PTL0_ADDRESS_ARCH() ((pte_t *) 0) |
| 41 | #define SET_PTL0_ADDRESS_ARCH(ptl0) |
41 | #define SET_PTL0_ADDRESS_ARCH(ptl0) |
| 42 | 42 | ||
| 43 | /** Implementation of page hash table interface. */ |
43 | /** Implementation of page hash table interface. */ |
| 44 | #define HT_HASH_ARCH(page, asid) 0 |
44 | #define HT_HASH_ARCH(page, asid) 0 |
| 45 | #define HT_COMPARE_ARCH(page, asid, t) 0 |
45 | #define HT_COMPARE_ARCH(page, asid, t) 0 |
| 46 | #define HT_SLOT_EMPTY_ARCH(t) 1 |
46 | #define HT_SLOT_EMPTY_ARCH(t) 1 |
| 47 | #define HT_GET_NEXT_ARCH(t) 0 |
47 | #define HT_GET_NEXT_ARCH(t) 0 |
| 48 | #define HT_SET_NEXT_ARCH(t, s) |
48 | #define HT_SET_NEXT_ARCH(t, s) |
| 49 | #define HT_SET_RECORD_ARCH(t, page, asid, frame, flags) |
49 | #define HT_SET_RECORD_ARCH(t, page, asid, frame, flags) |
| 50 | 50 | ||
| - | 51 | struct VHPT_tag_info |
|
| - | 52 | { |
|
| - | 53 | unsigned long long tag :63; |
|
| - | 54 | unsigned ti : 1; |
|
| - | 55 | }__attribute__ ((packed)); |
|
| - | 56 | ||
| - | 57 | union VHPT_tag |
|
| - | 58 | { |
|
| - | 59 | struct VHPT_tag_info tag_info; |
|
| - | 60 | unsigned tag_word; |
|
| - | 61 | }; |
|
| - | 62 | ||
| - | 63 | struct VHPT_entry_present |
|
| - | 64 | { |
|
| - | 65 | ||
| - | 66 | /* Word 0 */ |
|
| - | 67 | unsigned p : 1; |
|
| - | 68 | unsigned rv0 : 1; |
|
| - | 69 | unsigned ma : 3; |
|
| - | 70 | unsigned a : 1; |
|
| - | 71 | unsigned d : 1; |
|
| - | 72 | unsigned pl : 2; |
|
| - | 73 | unsigned ar : 3; |
|
| - | 74 | unsigned long long ppn :38; |
|
| - | 75 | unsigned rv1 : 2; |
|
| - | 76 | unsigned ed : 1; |
|
| - | 77 | unsigned ig1 :11; |
|
| - | 78 | ||
| - | 79 | /* Word 1 */ |
|
| - | 80 | unsigned rv2 : 2; |
|
| - | 81 | unsigned ps : 6; |
|
| - | 82 | unsigned key :24; |
|
| - | 83 | unsigned rv3 :32; |
|
| - | 84 | ||
| - | 85 | /* Word 2 */ |
|
| - | 86 | union VHPT_tag tag; /*This data is here as union because I'm not sure if anybody nead access to areas ti and tag in VHPT entry*/ |
|
| - | 87 | /* But I'm almost sure we nead access to whole word so there are both possibilities*/ |
|
| - | 88 | /* Word 3 */ |
|
| - | 89 | unsigned long long next :64; |
|
| - | 90 | ||
| - | 91 | }__attribute__ ((packed)); |
|
| - | 92 | ||
| - | 93 | struct VHPT_entry_not_present |
|
| - | 94 | { |
|
| - | 95 | /* Word 0 */ |
|
| - | 96 | unsigned p : 1; |
|
| - | 97 | unsigned long long ig0 :52; |
|
| - | 98 | unsigned ig1 :11; |
|
| - | 99 | ||
| - | 100 | /* Word 1 */ |
|
| - | 101 | unsigned rv2 : 2; |
|
| - | 102 | unsigned ps : 6; |
|
| - | 103 | unsigned long long ig2 :56; |
|
| - | 104 | ||
| - | 105 | ||
| - | 106 | /* Word 2 */ |
|
| - | 107 | union VHPT_tag tag; /*This data is here as union because I'm not sure if anybody nead access to areas ti and tag in VHPT entry*/ |
|
| - | 108 | /* But I'm almost sure we nead access to whole word so there are both possibilities*/ |
|
| - | 109 | /* Word 3 */ |
|
| - | 110 | unsigned long long next :64; |
|
| - | 111 | ||
| - | 112 | }__attribute__ ((packed)); |
|
| - | 113 | ||
| - | 114 | typedef union VHPT_entry |
|
| - | 115 | { |
|
| - | 116 | struct VHPT_entry_present present; |
|
| - | 117 | struct VHPT_entry_not_present not_present; |
|
| - | 118 | }VHPT_entry; |
|
| - | 119 | ||
| 51 | extern void page_arch_init(void); |
120 | extern void page_arch_init(void); |
| 52 | 121 | ||
| 53 | #endif |
122 | #endif |
| 54 | 123 | ||