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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 | #include <ddi/ddi.h> |
- | |
| 41 | - | ||
| 42 | /** Physical memory area for devices. */ |
- | |
| 43 | static parea_t dev_area; |
- | |
| 44 | 40 | ||
| 45 | void page_arch_init(void) |
41 | void page_arch_init(void) |
| 46 | { |
42 | { |
| 47 | if (config.cpu_active == 1) |
43 | if (config.cpu_active == 1) |
| 48 | page_mapping_operations = &pt_mapping_operations; |
44 | page_mapping_operations = &pt_mapping_operations; |
| 49 | } |
45 | } |
| 50 | 46 | ||
| 51 | 47 | ||
| 52 | uintptr_t hw_map(uintptr_t physaddr, size_t size) |
48 | uintptr_t hw_map(uintptr_t physaddr, size_t size) |
| 53 | { |
49 | { |
| 54 | if (last_frame + ALIGN_UP(size, PAGE_SIZE) > |
50 | if (last_frame + ALIGN_UP(size, PAGE_SIZE) > |
| 55 | KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH)) |
51 | KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH)) |
| 56 | panic("Unable to map physical memory %p (%" PRIs " bytes).", |
52 | panic("Unable to map physical memory %p (%" PRIs " bytes).", |
| 57 | physaddr, size) |
53 | physaddr, size) |
| 58 | 54 | ||
| 59 | uintptr_t virtaddr = PA2KA(last_frame); |
55 | uintptr_t virtaddr = PA2KA(last_frame); |
| 60 | pfn_t i; |
56 | pfn_t i; |
| 61 | for (i = 0; i < ADDR2PFN(ALIGN_UP(size, PAGE_SIZE)); i++) |
57 | for (i = 0; i < ADDR2PFN(ALIGN_UP(size, PAGE_SIZE)); i++) |
| 62 | page_mapping_insert(AS_KERNEL, virtaddr + PFN2ADDR(i), |
58 | page_mapping_insert(AS_KERNEL, virtaddr + PFN2ADDR(i), |
| 63 | physaddr + PFN2ADDR(i), PAGE_NOT_CACHEABLE | PAGE_WRITE); |
59 | physaddr + PFN2ADDR(i), PAGE_NOT_CACHEABLE | PAGE_WRITE); |
| 64 | 60 | ||
| 65 | last_frame = ALIGN_UP(last_frame + size, FRAME_SIZE); |
61 | last_frame = ALIGN_UP(last_frame + size, FRAME_SIZE); |
| 66 | 62 | ||
| 67 | return virtaddr; |
63 | return virtaddr; |
| 68 | } |
64 | } |
| 69 | - | ||
| 70 | void hw_area(void) |
- | |
| 71 | { |
- | |
| 72 | dev_area.pbase = end_frame; |
- | |
| 73 | dev_area.frames = SIZE2FRAMES(0xffffffff - end_frame); |
- | |
| 74 | ddi_parea_register(&dev_area); |
- | |
| 75 | } |
- | |
| 76 | 65 | ||
| 77 | /** @} |
66 | /** @} |
| 78 | */ |
67 | */ |
| 79 | 68 | ||