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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 ia64 |
|
- | 30 | * @ingroup mm |
|
- | 31 | * @{ |
|
- | 32 | */ |
|
- | 33 | /** @file |
|
- | 34 | * @ingroup ia64 |
|
- | 35 | */ |
|
- | 36 | ||
29 | #include <arch/mm/as.h> |
37 | #include <arch/mm/as.h> |
30 | #include <arch/mm/asid.h> |
38 | #include <arch/mm/asid.h> |
31 | #include <arch/mm/page.h> |
39 | #include <arch/mm/page.h> |
32 | #include <genarch/mm/as_ht.h> |
40 | #include <genarch/mm/as_ht.h> |
33 | #include <genarch/mm/asid_fifo.h> |
41 | #include <genarch/mm/asid_fifo.h> |
34 | #include <mm/asid.h> |
42 | #include <mm/asid.h> |
35 | #include <arch.h> |
43 | #include <arch.h> |
36 | #include <arch/barrier.h> |
44 | #include <arch/barrier.h> |
37 | #include <synch/spinlock.h> |
45 | #include <synch/spinlock.h> |
38 | 46 | ||
39 | /** Architecture dependent address space init. */ |
47 | /** Architecture dependent address space init. */ |
40 | void as_arch_init(void) |
48 | void as_arch_init(void) |
41 | { |
49 | { |
42 | as_operations = &as_ht_operations; |
50 | as_operations = &as_ht_operations; |
43 | asid_fifo_init(); |
51 | asid_fifo_init(); |
44 | } |
52 | } |
45 | 53 | ||
46 | /** Prepare registers for switching to another address space. |
54 | /** Prepare registers for switching to another address space. |
47 | * |
55 | * |
48 | * @param as Address space. |
56 | * @param as Address space. |
49 | */ |
57 | */ |
50 | void as_install_arch(as_t *as) |
58 | void as_install_arch(as_t *as) |
51 | { |
59 | { |
52 | ipl_t ipl; |
60 | ipl_t ipl; |
53 | region_register rr; |
61 | region_register rr; |
54 | int i; |
62 | int i; |
55 | 63 | ||
56 | ipl = interrupts_disable(); |
64 | ipl = interrupts_disable(); |
57 | spinlock_lock(&as->lock); |
65 | spinlock_lock(&as->lock); |
58 | 66 | ||
59 | ASSERT(as->asid != ASID_INVALID); |
67 | ASSERT(as->asid != ASID_INVALID); |
60 | 68 | ||
61 | /* |
69 | /* |
62 | * Load respective ASID (7 consecutive RIDs) to |
70 | * Load respective ASID (7 consecutive RIDs) to |
63 | * region registers. |
71 | * region registers. |
64 | */ |
72 | */ |
65 | for (i = 0; i < REGION_REGISTERS; i++) { |
73 | for (i = 0; i < REGION_REGISTERS; i++) { |
66 | if (i == VRN_KERNEL) |
74 | if (i == VRN_KERNEL) |
67 | continue; |
75 | continue; |
68 | 76 | ||
69 | rr.word = rr_read(i); |
77 | rr.word = rr_read(i); |
70 | rr.map.ve = false; /* disable VHPT walker */ |
78 | rr.map.ve = false; /* disable VHPT walker */ |
71 | rr.map.rid = ASID2RID(as->asid, i); |
79 | rr.map.rid = ASID2RID(as->asid, i); |
72 | rr.map.ps = PAGE_WIDTH; |
80 | rr.map.ps = PAGE_WIDTH; |
73 | rr_write(i, rr.word); |
81 | rr_write(i, rr.word); |
74 | } |
82 | } |
75 | srlz_d(); |
83 | srlz_d(); |
76 | srlz_i(); |
84 | srlz_i(); |
77 | 85 | ||
78 | spinlock_unlock(&as->lock); |
86 | spinlock_unlock(&as->lock); |
79 | interrupts_restore(ipl); |
87 | interrupts_restore(ipl); |
80 | } |
88 | } |
- | 89 | ||
- | 90 | /** @} |
|
- | 91 | */ |
|
- | 92 | ||
81 | 93 |