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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 | /** @addtogroup ppc32mm |
29 | /** @addtogroup ppc32mm |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <genarch/mm/page_pt.h> |
35 | #include <genarch/mm/page_pt.h> |
36 | #include <mm/frame.h> |
36 | #include <mm/frame.h> |
37 | #include <mm/as.h> |
37 | #include <mm/as.h> |
38 | #include <align.h> |
38 | #include <align.h> |
39 | #include <config.h> |
39 | #include <config.h> |
40 | 40 | ||
41 | void page_arch_init(void) |
41 | void page_arch_init(void) |
42 | { |
42 | { |
43 | if (config.cpu_active == 1) |
43 | if (config.cpu_active == 1) |
44 | page_mapping_operations = &pt_mapping_operations; |
44 | page_mapping_operations = &pt_mapping_operations; |
45 | } |
45 | } |
46 | 46 | ||
47 | 47 | ||
48 | uintptr_t hw_map(uintptr_t physaddr, size_t size) |
48 | uintptr_t hw_map(uintptr_t physaddr, size_t size) |
49 | { |
49 | { |
50 | if (last_frame + ALIGN_UP(size, PAGE_SIZE) > KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH)) |
50 | if (last_frame + ALIGN_UP(size, PAGE_SIZE) > |
- | 51 | KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH)) |
|
51 | panic("Unable to map physical memory %p (%" PRIs " bytes)", physaddr, size) |
52 | panic("Unable to map physical memory %p (%" PRIs " bytes)", |
- | 53 | physaddr, size) |
|
52 | 54 | ||
53 | uintptr_t virtaddr = PA2KA(last_frame); |
55 | uintptr_t virtaddr = PA2KA(last_frame); |
54 | pfn_t i; |
56 | pfn_t i; |
55 | for (i = 0; i < ADDR2PFN(ALIGN_UP(size, PAGE_SIZE)); i++) |
57 | for (i = 0; i < ADDR2PFN(ALIGN_UP(size, PAGE_SIZE)); i++) |
- | 58 | page_mapping_insert(AS_KERNEL, virtaddr + PFN2ADDR(i), |
|
56 | page_mapping_insert(AS_KERNEL, virtaddr + PFN2ADDR(i), physaddr + PFN2ADDR(i), PAGE_NOT_CACHEABLE | PAGE_WRITE); |
59 | physaddr + PFN2ADDR(i), PAGE_NOT_CACHEABLE | PAGE_WRITE); |
57 | 60 | ||
58 | last_frame = ALIGN_UP(last_frame + size, FRAME_SIZE); |
61 | last_frame = ALIGN_UP(last_frame + size, FRAME_SIZE); |
59 | 62 | ||
60 | return virtaddr; |
63 | return virtaddr; |
61 | } |
64 | } |
62 | 65 | ||
63 | /** @} |
66 | /** @} |
64 | */ |
67 | */ |
65 | 68 |