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| 1 | /* |
1 | /* |
| 2 | * Copyright (C) 2005 Martin Decky |
2 | * Copyright (C) 2005 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 | #include <arch/boot/boot.h> |
29 | #include <arch/boot/boot.h> |
| 30 | #include <arch/mm/frame.h> |
30 | #include <arch/mm/frame.h> |
| 31 | #include <arch/mm/memory_init.h> |
31 | #include <arch/mm/memory_init.h> |
| 32 | #include <mm/frame.h> |
32 | #include <mm/frame.h> |
| 33 | #include <align.h> |
33 | #include <align.h> |
| 34 | #include <macros.h> |
34 | #include <macros.h> |
| 35 | 35 | ||
| 36 | __address last_frame = 0; |
36 | __address last_frame = 0; |
| 37 | 37 | ||
| 38 | void frame_arch_init(void) |
38 | void frame_arch_init(void) |
| 39 | { |
39 | { |
| 40 | pfn_t minconf = 2; |
40 | pfn_t minconf = 2; |
| 41 | count_t i; |
41 | count_t i; |
| 42 | pfn_t start, conf; |
42 | pfn_t start, conf; |
| 43 | size_t size; |
43 | size_t size; |
| 44 | 44 | ||
| 45 | for (i = 0; i < bootinfo.memmap.count; i++) { |
45 | for (i = 0; i < bootinfo.memmap.count; i++) { |
| 46 | start = ADDR2PFN(ALIGN_UP(bootinfo.memmap.zones[i].start, FRAME_SIZE)); |
46 | start = ADDR2PFN(ALIGN_UP(bootinfo.memmap.zones[i].start, FRAME_SIZE)); |
| 47 | size = SIZE2FRAMES(ALIGN_DOWN(bootinfo.memmap.zones[i].size, FRAME_SIZE)); |
47 | size = SIZE2FRAMES(ALIGN_DOWN(bootinfo.memmap.zones[i].size, FRAME_SIZE)); |
| 48 | 48 | ||
| 49 | if ((minconf < start) || (minconf >= start + size)) |
49 | if ((minconf < start) || (minconf >= start + size)) |
| 50 | conf = start; |
50 | conf = start; |
| 51 | else |
51 | else |
| 52 | conf = minconf; |
52 | conf = minconf; |
| 53 | 53 | ||
| 54 | zone_create(start, size, conf, 0); |
54 | zone_create(start, size, conf, 0); |
| 55 | if (last_frame < ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE)) |
55 | if (last_frame < ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE)) |
| 56 | last_frame = ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE); |
56 | last_frame = ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE); |
| 57 | } |
57 | } |
| 58 | 58 | ||
| 59 | /* First is exception vector, second is 'implementation specific' */ |
59 | /* First is exception vector, second is 'implementation specific', third and fourth is reserved */ |
| 60 | frame_mark_unavailable(0, 2); |
60 | frame_mark_unavailable(0, 4); |
| 61 | 61 | ||
| 62 | /* Merge all zones to 1 big zone */ |
62 | /* Merge all zones to 1 big zone */ |
| 63 | zone_merge_all(); |
63 | zone_merge_all(); |
| 64 | } |
64 | } |
| 65 | 65 | ||