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162 | decky | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2005 Martin Decky |
162 | decky | 3 | * All rights reserved. |
4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
1726 | decky | 29 | /** @addtogroup ppc32mm |
1702 | cejka | 30 | * @{ |
31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
1132 | decky | 35 | #include <arch/boot/boot.h> |
162 | decky | 36 | #include <arch/mm/frame.h> |
37 | #include <mm/frame.h> |
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972 | decky | 38 | #include <align.h> |
39 | #include <macros.h> |
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2723 | decky | 40 | #include <print.h> |
162 | decky | 41 | |
1780 | jermar | 42 | uintptr_t last_frame = 0; |
972 | decky | 43 | |
2723 | decky | 44 | void physmem_print(void) |
45 | { |
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46 | unsigned int i; |
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47 | |||
48 | printf("Base Size\n"); |
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49 | printf("---------- ----------\n"); |
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50 | |||
51 | for (i = 0; i < bootinfo.memmap.count; i++) { |
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52 | printf("%#10x %#10x\n", bootinfo.memmap.zones[i].start, |
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53 | bootinfo.memmap.zones[i].size); |
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54 | } |
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55 | } |
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56 | |||
162 | decky | 57 | void frame_arch_init(void) |
58 | { |
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972 | decky | 59 | pfn_t minconf = 2; |
4692 | svoboda | 60 | size_t i; |
972 | decky | 61 | pfn_t start, conf; |
62 | size_t size; |
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63 | |||
1132 | decky | 64 | for (i = 0; i < bootinfo.memmap.count; i++) { |
65 | start = ADDR2PFN(ALIGN_UP(bootinfo.memmap.zones[i].start, FRAME_SIZE)); |
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66 | size = SIZE2FRAMES(ALIGN_DOWN(bootinfo.memmap.zones[i].size, FRAME_SIZE)); |
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972 | decky | 67 | |
68 | if ((minconf < start) || (minconf >= start + size)) |
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69 | conf = start; |
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70 | else |
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71 | conf = minconf; |
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72 | |||
73 | zone_create(start, size, conf, 0); |
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1132 | decky | 74 | if (last_frame < ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE)) |
75 | last_frame = ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE); |
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972 | decky | 76 | } |
4377 | svoboda | 77 | |
1716 | decky | 78 | /* First is exception vector, second is 'implementation specific', |
79 | third and fourth is reserved, other contain real mode code */ |
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80 | frame_mark_unavailable(0, 8); |
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972 | decky | 81 | |
1730 | decky | 82 | /* Mark the Page Hash Table frames as unavailable */ |
1780 | jermar | 83 | uint32_t sdr1; |
1730 | decky | 84 | asm volatile ( |
85 | "mfsdr1 %0\n" |
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86 | : "=r" (sdr1) |
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87 | ); |
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88 | frame_mark_unavailable(ADDR2PFN(sdr1 & 0xffff000), 16); // FIXME |
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162 | decky | 89 | } |
1702 | cejka | 90 | |
1726 | decky | 91 | /** @} |
1702 | cejka | 92 | */ |