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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 |