Rev 684 | Rev 746 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 684 | Rev 699 | ||
---|---|---|---|
1 | /* |
1 | /* |
2 | * Copyright (C) 2006 Jakub Jermar |
2 | * Copyright (C) 2006 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 | /* |
29 | /* |
30 | * This is the generic page hash table interface. |
30 | * This is the generic page hash table interface. |
- | 31 | * Architectures that use single page hash table for |
|
- | 32 | * storing page translations must implement it. |
|
31 | */ |
33 | */ |
32 | 34 | ||
33 | #ifndef __PAGE_HT_H__ |
35 | #ifndef __PAGE_HT_H__ |
34 | #define __PAGE_HT_H__ |
36 | #define __PAGE_HT_H__ |
35 | 37 | ||
36 | #include <mm/page.h> |
38 | #include <mm/page.h> |
37 | 39 | ||
- | 40 | /** Hash function. |
|
- | 41 | * |
|
- | 42 | * @param page Virtual address. Only vpn bits will be used. |
|
- | 43 | * @param asid Address space identifier. |
|
- | 44 | * |
|
- | 45 | * @return Pointer to hash table typed pte_t *. |
|
- | 46 | */ |
|
- | 47 | #define HT_HASH(page, asid) HT_HASH_ARCH(page, asid) |
|
- | 48 | ||
- | 49 | /** Compare PTE with page and asid. |
|
- | 50 | * |
|
- | 51 | * @param page Virtual address. Only vpn bits will be used. |
|
- | 52 | * @param asid Address space identifier. |
|
- | 53 | * @param t PTE. |
|
- | 54 | * |
|
- | 55 | * @return 1 on match, 0 otherwise. |
|
- | 56 | */ |
|
- | 57 | #define HT_COMPARE(page, asid, t) HT_COMPARE_ARCH(page, asid, t) |
|
- | 58 | ||
- | 59 | /** Identify empty hash table slots. |
|
- | 60 | * |
|
- | 61 | * @param t Pointer ro hash table typed pte_t *. |
|
- | 62 | * |
|
- | 63 | * @return 1 if the slot is empty, 0 otherwise. |
|
- | 64 | */ |
|
- | 65 | #define HT_SLOT_EMPTY(t) HT_SLOT_EMPTY_ARCH(t) |
|
- | 66 | ||
- | 67 | /** Return next record in collision chain. |
|
- | 68 | * |
|
- | 69 | * @param t PTE. |
|
- | 70 | * |
|
- | 71 | * @return Successor of PTE or NULL. |
|
- | 72 | */ |
|
- | 73 | #define HT_GET_NEXT(t) HT_GET_NEXT_ARCH(t) |
|
- | 74 | ||
- | 75 | /** Set successor in collision chain. |
|
- | 76 | * |
|
- | 77 | * @param t PTE. |
|
- | 78 | * @param s Successor or NULL. |
|
- | 79 | */ |
|
- | 80 | #define HT_SET_NEXT(t, s) HT_SET_NEXT_ARCH(t, s) |
|
- | 81 | ||
- | 82 | /** Set page hash table record. |
|
- | 83 | * |
|
- | 84 | * @param t PTE. |
|
- | 85 | * @param page Virtual address. Only vpn bits will be used. |
|
- | 86 | * @param asid Address space identifier. |
|
- | 87 | * @param frame Physical address. Only pfn bits will be used. |
|
- | 88 | * @param flags Flags. See mm/page.h. |
|
- | 89 | */ |
|
- | 90 | #define HT_SET_RECORD(t, page, asid, frame, flags) HT_SET_RECORD_ARCH(t, page, asid, frame, flags) |
|
- | 91 | ||
38 | extern page_operations_t page_ht_operations; |
92 | extern page_operations_t page_ht_operations; |
39 | 93 | ||
40 | #endif |
94 | #endif |
41 | 95 |