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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 | #include <mm/tlb.h> |
29 | #include <mm/tlb.h> |
| 30 | #include <arch/mm/asid.h> |
30 | #include <arch/mm/asid.h> |
| 31 | #include <arch/asm.h> |
31 | #include <arch/asm.h> |
| 32 | #include <arch/types.h> |
32 | #include <arch/types.h> |
| 33 | 33 | ||
| 34 | /** Invalidate all entries in TLB. */ |
34 | /** Invalidate all entries in TLB. */ |
| 35 | void tlb_invalidate_all(void) |
35 | void tlb_invalidate_all(void) |
| 36 | { |
36 | { |
| 37 | write_cr3(read_cr3()); |
37 | write_cr3(read_cr3()); |
| 38 | } |
38 | } |
| 39 | 39 | ||
| 40 | /** Invalidate all entries in TLB that belong to specified address space. |
40 | /** Invalidate all entries in TLB that belong to specified address space. |
| 41 | * |
41 | * |
| 42 | * @param asid This parameter is ignored as the architecture doesn't support it. |
42 | * @param asid This parameter is ignored as the architecture doesn't support it. |
| 43 | */ |
43 | */ |
| 44 | void tlb_invalidate_asid(asid_t asid) |
44 | void tlb_invalidate_asid(asid_t asid) |
| 45 | { |
45 | { |
| 46 | tlb_invalidate_all(); |
46 | tlb_invalidate_all(); |
| 47 | } |
47 | } |
| 48 | 48 | ||
| 49 | /** Invalidate TLB entry for specified page range belonging to specified address space. |
49 | /** Invalidate TLB entries for specified page range belonging to specified address space. |
| 50 | * |
50 | * |
| 51 | * @param asid This parameter is ignored as the architecture doesn't support it. |
51 | * @param asid This parameter is ignored as the architecture doesn't support it. |
| 52 | * @param page Address of the first page whose entry is to be invalidated. |
52 | * @param page Address of the first page whose entry is to be invalidated. |
| 53 | * @param cnt Number of entries to invalidate. |
53 | * @param cnt Number of entries to invalidate. |
| 54 | */ |
54 | */ |
| 55 | void tlb_invalidate_pages(asid_t asid, __address page, count_t cnt) |
55 | void tlb_invalidate_pages(asid_t asid, __address page, count_t cnt) |
| 56 | { |
56 | { |
| 57 | int i; |
57 | int i; |
| 58 | 58 | ||
| 59 | for (i = 0; i < cnt; i++) |
59 | for (i = 0; i < cnt; i++) |
| 60 | invlpg(page + i * PAGE_SIZE); |
60 | invlpg(page + i * PAGE_SIZE); |
| 61 | } |
61 | } |
| 62 | 62 | ||