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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 ppc64mm |
29 | /** @addtogroup ppc64mm |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <mm/tlb.h> |
35 | #include <mm/tlb.h> |
36 | 36 | ||
37 | 37 | ||
38 | /** Initialize Page Hash Table. |
38 | /** Initialize Page Hash Table. |
39 | * |
39 | * |
40 | * Setup the Page Hash Table with no entries. |
40 | * Setup the Page Hash Table with no entries. |
41 | * |
41 | * |
42 | */ |
42 | */ |
43 | void tlb_arch_init(void) |
43 | void tlb_arch_init(void) |
44 | { |
44 | { |
45 | tlb_invalidate_all(); |
45 | tlb_invalidate_all(); |
46 | } |
46 | } |
47 | 47 | ||
48 | 48 | ||
49 | void tlb_invalidate_all(void) |
49 | void tlb_invalidate_all(void) |
50 | { |
50 | { |
51 | asm volatile ( |
51 | asm volatile ( |
52 | "tlbia\n" |
52 | "tlbia\n" |
53 | "tlbsync\n" |
53 | "tlbsync\n" |
54 | ); |
54 | ); |
55 | } |
55 | } |
56 | 56 | ||
57 | 57 | ||
58 | /** Invalidate all entries in TLB that belong to specified address space. |
58 | /** Invalidate all entries in TLB that belong to specified address space. |
59 | * |
59 | * |
60 | * @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. |
61 | */ |
61 | */ |
62 | void tlb_invalidate_asid(asid_t asid) |
62 | void tlb_invalidate_asid(asid_t asid) |
63 | { |
63 | { |
64 | tlb_invalidate_all(); |
64 | tlb_invalidate_all(); |
65 | } |
65 | } |
66 | 66 | ||
67 | /** 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. |
68 | * |
68 | * |
69 | * @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. |
70 | * @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. |
71 | * @param cnt Number of entries to invalidate. |
71 | * @param cnt Number of entries to invalidate. |
72 | */ |
72 | */ |
73 | void tlb_invalidate_pages(asid_t asid, __address page, count_t cnt) |
73 | void tlb_invalidate_pages(asid_t asid, uintptr_t page, count_t cnt) |
74 | { |
74 | { |
75 | tlb_invalidate_all(); |
75 | tlb_invalidate_all(); |
76 | } |
76 | } |
77 | 77 | ||
78 | 78 | ||
79 | 79 | ||
80 | /** Print contents of Page Hash Table. */ |
80 | /** Print contents of Page Hash Table. */ |
81 | void tlb_print(void) |
81 | void tlb_print(void) |
82 | { |
82 | { |
83 | } |
83 | } |
84 | 84 | ||
85 | /** @} |
85 | /** @} |
86 | */ |
86 | */ |
87 | 87 |