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| Rev | Author | Line No. | Line |
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| 426 | jermar | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2005 Jakub Jermar |
| 426 | jermar | 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 | |||
| 1784 | jermar | 29 | /** @addtogroup sparc64mm |
| 1702 | cejka | 30 | * @{ |
| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 426 | jermar | 35 | #include <arch/mm/frame.h> |
| 36 | #include <mm/frame.h> |
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| 1790 | jermar | 37 | #include <arch/boot/boot.h> |
| 1793 | jermar | 38 | #include <arch/types.h> |
| 426 | jermar | 39 | #include <config.h> |
| 820 | jermar | 40 | #include <align.h> |
| 1793 | jermar | 41 | #include <macros.h> |
| 426 | jermar | 42 | |
| 1793 | jermar | 43 | uintptr_t last_frame = NULL; |
| 44 | |||
| 1790 | jermar | 45 | /** Create memory zones according to information stored in bootinfo. |
| 46 | * |
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| 47 | * Walk the bootinfo memory map and create frame zones according to it. |
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| 48 | */ |
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| 426 | jermar | 49 | void frame_arch_init(void) |
| 50 | { |
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| 2745 | decky | 51 | unsigned int i; |
| 1790 | jermar | 52 | pfn_t confdata; |
| 815 | jermar | 53 | |
| 1903 | jermar | 54 | if (config.cpu_active == 1) { |
| 55 | for (i = 0; i < bootinfo.memmap.count; i++) { |
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| 56 | uintptr_t start = bootinfo.memmap.zones[i].start; |
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| 57 | size_t size = bootinfo.memmap.zones[i].size; |
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| 1790 | jermar | 58 | |
| 3770 | rimsky | 59 | printf("Found a zone: start = %x, size = %d.\n", start, size); |
| 60 | |||
| 1903 | jermar | 61 | /* |
| 62 | * The memmap is created by HelenOS boot loader. |
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| 63 | * It already contains no holes. |
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| 64 | */ |
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| 1988 | jermar | 65 | |
| 1903 | jermar | 66 | confdata = ADDR2PFN(start); |
| 1983 | jermar | 67 | if (confdata == ADDR2PFN(KA2PA(PFN2ADDR(0)))) |
| 68 | confdata = ADDR2PFN(KA2PA(PFN2ADDR(2))); |
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| 2048 | jermar | 69 | zone_create(ADDR2PFN(start), |
| 2267 | jermar | 70 | SIZE2FRAMES(ALIGN_DOWN(size, FRAME_SIZE)), |
| 71 | confdata, 0); |
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| 2048 | jermar | 72 | last_frame = max(last_frame, start + ALIGN_UP(size, |
| 2267 | jermar | 73 | FRAME_SIZE)); |
| 1903 | jermar | 74 | } |
| 1988 | jermar | 75 | |
| 76 | /* |
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| 77 | * On sparc64, physical memory can start on a non-zero address. |
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| 78 | * The generic frame_init() only marks PFN 0 as not free, so we |
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| 2048 | jermar | 79 | * must mark the physically first frame not free explicitly |
| 80 | * here, no matter what is its address. |
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| 1988 | jermar | 81 | */ |
| 82 | frame_mark_unavailable(ADDR2PFN(KA2PA(PFN2ADDR(0))), 1); |
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| 1790 | jermar | 83 | } |
| 1983 | jermar | 84 | |
| 426 | jermar | 85 | } |
| 1702 | cejka | 86 | |
| 1784 | jermar | 87 | /** @} |
| 1702 | cejka | 88 | */ |