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1 | /* |
1 | /* |
2 | * Copyright (C) 2006 Martin Decky |
2 | * Copyright (C) 2006 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 | #include <mm/tlb.h> |
29 | #include <mm/tlb.h> |
30 | 30 | ||
31 | 31 | ||
32 | /** Initialize Page Hash Table. |
32 | /** Initialize Page Hash Table. |
33 | * |
33 | * |
34 | * Setup the Page Hash Table with no entries. |
34 | * Setup the Page Hash Table with no entries. |
35 | * |
35 | * |
36 | */ |
36 | */ |
37 | void tlb_arch_init(void) |
37 | void tlb_arch_init(void) |
38 | { |
38 | { |
- | 39 | tlb_invalidate_all(); |
|
- | 40 | } |
|
- | 41 | ||
- | 42 | ||
- | 43 | void tlb_invalidate_all(void) |
|
- | 44 | { |
|
39 | asm volatile ( |
45 | asm volatile ( |
40 | "tlbia\n" |
46 | "tlbia\n" |
- | 47 | "tlbsync\n" |
|
41 | ); |
48 | ); |
42 | } |
49 | } |
43 | 50 | ||
44 | 51 | ||
- | 52 | /** Invalidate all entries in TLB that belong to specified address space. |
|
- | 53 | * |
|
- | 54 | * @param asid This parameter is ignored as the architecture doesn't support it. |
|
- | 55 | */ |
|
45 | void tlb_invalidate_all(void) |
56 | void tlb_invalidate_asid(asid_t asid) |
46 | { |
57 | { |
- | 58 | tlb_invalidate_all(); |
|
47 | } |
59 | } |
48 | 60 | ||
- | 61 | /** Invalidate TLB entries for specified page range belonging to specified address space. |
|
- | 62 | * |
|
- | 63 | * @param asid This parameter is ignored as the architecture doesn't support it. |
|
- | 64 | * @param page Address of the first page whose entry is to be invalidated. |
|
- | 65 | * @param cnt Number of entries to invalidate. |
|
- | 66 | */ |
|
- | 67 | void tlb_invalidate_pages(asid_t asid, __address page, count_t cnt) |
|
- | 68 | { |
|
- | 69 | tlb_invalidate_all(); |
|
- | 70 | } |
|
- | 71 | ||
- | 72 | ||
49 | 73 | ||
50 | /** Print contents of Page Hash Table. */ |
74 | /** Print contents of Page Hash Table. */ |
51 | void tlb_print(void) |
75 | void tlb_print(void) |
52 | { |
76 | { |
53 | } |
77 | } |
54 | 78 |