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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 | 36 | ||
36 | size_t hardcoded_unmapped_ktext_size = 0; |
37 | size_t hardcoded_unmapped_ktext_size = 0; |
37 | size_t hardcoded_unmapped_kdata_size = 0; |
38 | size_t hardcoded_unmapped_kdata_size = 0; |
38 | 39 | ||
39 | void frame_arch_init(void) |
40 | void frame_arch_init(void) |
40 | { |
41 | { |
- | 42 | zone_t *z; |
|
41 | __u8 i; |
43 | __u8 i; |
42 | 44 | ||
43 | if (config.cpu_active == 1) { |
45 | if (config.cpu_active == 1) { |
44 | /* Reserve the NULL frame */ |
- | |
45 | frame_not_free(0x0); |
- | |
46 | - | ||
47 | /* Reserve well-known memory regions */ |
- | |
48 | frame_region_not_free(0xa0000,0xff000); |
- | |
49 | frame_region_not_free(0xfec00000,0xffffffff); |
- | |
50 | - | ||
51 | /* Reserve real mode bootstrap memory */ |
- | |
52 | frame_region_not_free(BOOTSTRAP_OFFSET, BOOTSTRAP_OFFSET + hardcoded_unmapped_ktext_size + hardcoded_unmapped_kdata_size); |
- | |
53 | - | ||
54 | for (i=e820counter;i>0;i--) { |
46 | for (i=e820counter;i>0;i--) { |
55 | if (e820table[i-1].type!=MEMMAP_MEMORY_AVAILABLE) { |
47 | if (e820table[i-1].type==MEMMAP_MEMORY_AVAILABLE) { |
56 | frame_region_not_free(e820table[i-1].base_address, e820table[i-1].base_address+e820table[i-1].size); |
48 | z = zone_create(e820table[i-1].base_address, e820table[i-1].size & ~(FRAME_SIZE-1), 0); |
- | 49 | if (!z) { |
|
- | 50 | panic("Cannot allocate zone (%dB).\n", e820table[i-1].size & ~(FRAME_SIZE-1)); |
|
57 | } |
51 | } |
- | 52 | zone_attach(z); |
|
58 | } |
53 | } |
- | 54 | } |
|
- | 55 | ||
- | 56 | frame_not_free(0); |
|
- | 57 | ||
- | 58 | /* Reserve real mode bootstrap memory */ |
|
- | 59 | frame_region_not_free(BOOTSTRAP_OFFSET, BOOTSTRAP_OFFSET + hardcoded_unmapped_ktext_size + hardcoded_unmapped_kdata_size); |
|
59 | } |
60 | } |
60 | } |
61 | } |
61 | 62 |