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1 | /* |
1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
2 | * Copyright (C) 2001-2004 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/frame.h> |
29 | #include <mm/frame.h> |
30 | #include <arch/mm/frame.h> |
30 | #include <arch/mm/frame.h> |
31 | #include <mm/vm.h> |
31 | #include <mm/vm.h> |
32 | #include <config.h> |
32 | #include <config.h> |
33 | #include <arch/boot/boot.h> |
33 | #include <arch/boot/boot.h> |
34 | #include <arch/boot/memmap.h> |
34 | #include <arch/boot/memmap.h> |
35 | #include <panic.h> |
35 | #include <panic.h> |
36 | #include <debug.h> |
36 | #include <debug.h> |
- | 37 | #include <align.h> |
|
37 | 38 | ||
38 | size_t hardcoded_unmapped_ktext_size = 0; |
39 | size_t hardcoded_unmapped_ktext_size = 0; |
39 | size_t hardcoded_unmapped_kdata_size = 0; |
40 | size_t hardcoded_unmapped_kdata_size = 0; |
40 | 41 | ||
- | 42 | __address last_frame = 0; |
|
- | 43 | ||
41 | void frame_arch_init(void) |
44 | void frame_arch_init(void) |
42 | { |
45 | { |
43 | zone_t *z; |
46 | zone_t *z; |
44 | __u8 i; |
47 | __u8 i; |
45 | 48 | ||
46 | if (config.cpu_active == 1) { |
49 | if (config.cpu_active == 1) { |
47 | 50 | ||
48 | /* Reserve frame 0 (BIOS data) */ |
51 | /* Reserve frame 0 (BIOS data) */ |
49 | frame_region_not_free(0, FRAME_SIZE); |
52 | frame_region_not_free(0, FRAME_SIZE); |
50 | 53 | ||
51 | /* Reserve real mode bootstrap memory */ |
54 | /* Reserve real mode bootstrap memory */ |
52 | frame_region_not_free(BOOTSTRAP_OFFSET, hardcoded_unmapped_ktext_size + hardcoded_unmapped_kdata_size); |
55 | frame_region_not_free(BOOTSTRAP_OFFSET, hardcoded_unmapped_ktext_size + hardcoded_unmapped_kdata_size); |
53 | 56 | ||
54 | for (i = 0; i < e820counter; i++) { |
57 | for (i = 0; i < e820counter; i++) { |
55 | if (e820table[i].type == MEMMAP_MEMORY_AVAILABLE) { |
58 | if (e820table[i].type == MEMMAP_MEMORY_AVAILABLE) { |
56 | zone_create_in_region(e820table[i].base_address, e820table[i].size & ~(FRAME_SIZE-1)); |
59 | zone_create_in_region(e820table[i].base_address, e820table[i].size & ~(FRAME_SIZE-1)); |
- | 60 | if (last_frame < ALIGN(e820table[i].base_address + e820table[i].size, FRAME_SIZE)) |
|
- | 61 | last_frame = ALIGN(e820table[i].base_address + e820table[i].size, FRAME_SIZE); |
|
57 | } |
62 | } |
58 | } |
63 | } |
59 | } |
64 | } |
60 | } |
65 | } |
61 | 66 |