Rev 2071 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 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> |
| 843 | palkovsky | 37 | #include <arch/mm/memory_init.h> |
| 162 | decky | 38 | #include <mm/frame.h> |
| 972 | decky | 39 | #include <align.h> |
| 40 | #include <macros.h> |
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| 162 | decky | 41 | |
| 1780 | jermar | 42 | uintptr_t last_frame = 0; |
| 972 | decky | 43 | |
| 162 | decky | 44 | void frame_arch_init(void) |
| 45 | { |
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| 972 | decky | 46 | pfn_t minconf = 2; |
| 47 | count_t i; |
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| 48 | pfn_t start, conf; |
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| 49 | size_t size; |
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| 50 | |||
| 1132 | decky | 51 | for (i = 0; i < bootinfo.memmap.count; i++) { |
| 52 | start = ADDR2PFN(ALIGN_UP(bootinfo.memmap.zones[i].start, FRAME_SIZE)); |
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| 53 | size = SIZE2FRAMES(ALIGN_DOWN(bootinfo.memmap.zones[i].size, FRAME_SIZE)); |
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| 972 | decky | 54 | |
| 55 | if ((minconf < start) || (minconf >= start + size)) |
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| 56 | conf = start; |
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| 57 | else |
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| 58 | conf = minconf; |
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| 59 | |||
| 60 | zone_create(start, size, conf, 0); |
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| 1132 | decky | 61 | if (last_frame < ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE)) |
| 62 | last_frame = ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE); |
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| 972 | decky | 63 | } |
| 64 | |||
| 1716 | decky | 65 | /* First is exception vector, second is 'implementation specific', |
| 66 | third and fourth is reserved, other contain real mode code */ |
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| 67 | frame_mark_unavailable(0, 8); |
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| 972 | decky | 68 | |
| 1730 | decky | 69 | /* Mark the Page Hash Table frames as unavailable */ |
| 1780 | jermar | 70 | uint32_t sdr1; |
| 1730 | decky | 71 | asm volatile ( |
| 72 | "mfsdr1 %0\n" |
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| 73 | : "=r" (sdr1) |
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| 74 | ); |
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| 75 | frame_mark_unavailable(ADDR2PFN(sdr1 & 0xffff000), 16); // FIXME |
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| 162 | decky | 76 | } |
| 1702 | cejka | 77 | |
| 1726 | decky | 78 | /** @} |
| 1702 | cejka | 79 | */ |