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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 368 | jermar | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2005 Jakub Jermar |
| 368 | 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 | |||
| 4055 | trochtova | 29 | /** @addtogroup ia64mm |
| 1702 | cejka | 30 | * @{ |
| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 368 | jermar | 35 | #include <arch/mm/frame.h> |
| 36 | #include <mm/frame.h> |
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| 37 | #include <config.h> |
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| 38 | #include <panic.h> |
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| 4055 | trochtova | 39 | #include <arch/bootinfo.h> |
| 40 | #include <align.h> |
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| 41 | #include <macros.h> |
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| 368 | jermar | 42 | |
| 4055 | trochtova | 43 | #define KERNEL_RESERVED_AREA_BASE (0x4400000) |
| 44 | #define KERNEL_RESERVED_AREA_SIZE (16 * 1024 * 1024) |
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| 757 | jermar | 45 | |
| 4055 | trochtova | 46 | #define ROM_BASE 0xa0000 /* for simulators */ |
| 47 | #define ROM_SIZE (384 * 1024) /* for simulators */ |
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| 48 | |||
| 49 | #define MIN_ZONE_SIZE (64 * 1024) |
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| 50 | |||
| 51 | #define MINCONF 1 |
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| 52 | |||
| 53 | uintptr_t last_frame = 0; |
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| 54 | |||
| 368 | jermar | 55 | void frame_arch_init(void) |
| 56 | { |
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| 4055 | trochtova | 57 | if (config.cpu_active == 1) { |
| 58 | unsigned int i; |
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| 59 | for (i = 0; i < bootinfo->memmap_items; i++) { |
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| 60 | if (bootinfo->memmap[i].type == EFI_MEMMAP_FREE_MEM) { |
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| 61 | uint64_t base = bootinfo->memmap[i].base; |
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| 62 | uint64_t size = bootinfo->memmap[i].size; |
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| 63 | uint64_t abase = ALIGN_UP(base, FRAME_SIZE); |
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| 64 | |||
| 65 | if (size > FRAME_SIZE) |
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| 66 | size -= abase - base; |
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| 67 | |||
| 68 | if (size > MIN_ZONE_SIZE) { |
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| 69 | zone_create(abase >> FRAME_WIDTH, |
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| 70 | size >> FRAME_WIDTH, |
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| 71 | max(MINCONF, abase >> FRAME_WIDTH), |
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| 72 | 0); |
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| 73 | } |
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| 74 | if (abase + size > last_frame) |
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| 75 | last_frame = abase + size; |
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| 76 | } |
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| 77 | } |
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| 78 | |||
| 79 | /* |
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| 80 | * Blacklist ROM regions. |
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| 81 | */ |
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| 82 | frame_mark_unavailable(ADDR2PFN(ROM_BASE), |
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| 83 | SIZE2FRAMES(ROM_SIZE)); |
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| 84 | |||
| 85 | frame_mark_unavailable(ADDR2PFN(KERNEL_RESERVED_AREA_BASE), |
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| 86 | SIZE2FRAMES(KERNEL_RESERVED_AREA_SIZE)); |
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| 87 | } |
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| 368 | jermar | 88 | } |
| 1702 | cejka | 89 | |
| 1888 | jermar | 90 | /** @} |
| 1702 | cejka | 91 | */ |