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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 | /** @addtogroup ppc32mm |
|
- | 30 | * @{ |
|
- | 31 | */ |
|
- | 32 | /** @file |
|
- | 33 | */ |
|
- | 34 | ||
29 | #include <mm/tlb.h> |
35 | #include <mm/tlb.h> |
30 | 36 | ||
31 | 37 | ||
32 | /** Initialize Page Hash Table. |
38 | /** Initialize Page Hash Table. |
33 | * |
39 | * |
34 | * Setup the Page Hash Table with no entries. |
40 | * Setup the Page Hash Table with no entries. |
35 | * |
41 | * |
36 | */ |
42 | */ |
37 | void tlb_arch_init(void) |
43 | void tlb_arch_init(void) |
38 | { |
44 | { |
39 | tlb_invalidate_all(); |
45 | tlb_invalidate_all(); |
40 | } |
46 | } |
41 | 47 | ||
42 | 48 | ||
43 | void tlb_invalidate_all(void) |
49 | void tlb_invalidate_all(void) |
44 | { |
50 | { |
45 | asm volatile ( |
51 | asm volatile ( |
46 | "tlbia\n" |
52 | "tlbia\n" |
47 | "tlbsync\n" |
53 | "tlbsync\n" |
48 | ); |
54 | ); |
49 | } |
55 | } |
50 | 56 | ||
51 | 57 | ||
52 | /** Invalidate all entries in TLB that belong to specified address space. |
58 | /** Invalidate all entries in TLB that belong to specified address space. |
53 | * |
59 | * |
54 | * @param asid This parameter is ignored as the architecture doesn't support it. |
60 | * @param asid This parameter is ignored as the architecture doesn't support it. |
55 | */ |
61 | */ |
56 | void tlb_invalidate_asid(asid_t asid) |
62 | void tlb_invalidate_asid(asid_t asid) |
57 | { |
63 | { |
58 | tlb_invalidate_all(); |
64 | tlb_invalidate_all(); |
59 | } |
65 | } |
60 | 66 | ||
61 | /** Invalidate TLB entries for specified page range belonging to specified address space. |
67 | /** Invalidate TLB entries for specified page range belonging to specified address space. |
62 | * |
68 | * |
63 | * @param asid This parameter is ignored as the architecture doesn't support it. |
69 | * @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. |
70 | * @param page Address of the first page whose entry is to be invalidated. |
65 | * @param cnt Number of entries to invalidate. |
71 | * @param cnt Number of entries to invalidate. |
66 | */ |
72 | */ |
67 | void tlb_invalidate_pages(asid_t asid, __address page, count_t cnt) |
73 | void tlb_invalidate_pages(asid_t asid, __address page, count_t cnt) |
68 | { |
74 | { |
69 | tlb_invalidate_all(); |
75 | tlb_invalidate_all(); |
70 | } |
76 | } |
71 | 77 | ||
72 | 78 | ||
73 | 79 | ||
74 | /** Print contents of Page Hash Table. */ |
80 | /** Print contents of Page Hash Table. */ |
75 | void tlb_print(void) |
81 | void tlb_print(void) |
76 | { |
82 | { |
77 | } |
83 | } |
- | 84 | ||
- | 85 | /** @} |
|
- | 86 | */ |
|
- | 87 | ||
78 | 88 |