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1 | /* |
1 | /* |
2 | * Copyright (c) 2006 Jakub Jermar |
2 | * Copyright (c) 2006 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 | /** @addtogroup ia64mm |
29 | /** @addtogroup ia64mm |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <arch/mm/as.h> |
35 | #include <arch/mm/as.h> |
36 | #include <arch/mm/asid.h> |
36 | #include <arch/mm/asid.h> |
37 | #include <arch/mm/page.h> |
37 | #include <arch/mm/page.h> |
38 | #include <genarch/mm/as_ht.h> |
38 | #include <genarch/mm/as_ht.h> |
39 | #include <genarch/mm/page_ht.h> |
39 | #include <genarch/mm/page_ht.h> |
40 | #include <genarch/mm/asid_fifo.h> |
40 | #include <genarch/mm/asid_fifo.h> |
41 | #include <mm/asid.h> |
41 | #include <mm/asid.h> |
42 | #include <arch/barrier.h> |
42 | #include <arch/barrier.h> |
43 | 43 | ||
44 | /** Architecture dependent address space init. */ |
44 | /** Architecture dependent address space init. */ |
45 | void as_arch_init(void) |
45 | void as_arch_init(void) |
46 | { |
46 | { |
47 | as_operations = &as_ht_operations; |
47 | as_operations = &as_ht_operations; |
48 | asid_fifo_init(); |
48 | asid_fifo_init(); |
49 | } |
49 | } |
50 | 50 | ||
51 | /** Prepare registers for switching to another address space. |
51 | /** Prepare registers for switching to another address space. |
52 | * |
52 | * |
53 | * @param as Address space. |
53 | * @param as Address space. |
54 | */ |
54 | */ |
55 | void as_install_arch(as_t *as) |
55 | void as_install_arch(as_t *as) |
56 | { |
56 | { |
57 | region_register rr; |
57 | region_register rr; |
58 | int i; |
58 | int i; |
59 | 59 | ||
60 | ASSERT(as->asid != ASID_INVALID); |
60 | ASSERT(as->asid != ASID_INVALID); |
61 | 61 | ||
62 | /* |
62 | /* |
63 | * Load respective ASID (7 consecutive RIDs) to |
63 | * Load respective ASID (7 consecutive RIDs) to |
64 | * region registers. |
64 | * region registers. |
65 | */ |
65 | */ |
66 | for (i = 0; i < REGION_REGISTERS; i++) { |
66 | for (i = 0; i < REGION_REGISTERS; i++) { |
67 | if (i == VRN_KERNEL) |
67 | if (i == VRN_KERNEL) |
68 | continue; |
68 | continue; |
69 | 69 | ||
70 | rr.word = rr_read(i); |
70 | rr.word = rr_read(i); |
71 | rr.map.ve = false; /* disable VHPT walker */ |
71 | rr.map.ve = false; /* disable VHPT walker */ |
72 | rr.map.rid = ASID2RID(as->asid, i); |
72 | rr.map.rid = ASID2RID(as->asid, i); |
73 | rr.map.ps = PAGE_WIDTH; |
73 | rr.map.ps = PAGE_WIDTH; |
74 | rr_write(i, rr.word); |
74 | rr_write(i, rr.word); |
75 | } |
75 | } |
76 | srlz_d(); |
76 | srlz_d(); |
77 | srlz_i(); |
77 | srlz_i(); |
78 | } |
78 | } |
79 | 79 | ||
80 | /** @} |
80 | /** @} |
81 | */ |
81 | */ |
82 | 82 |