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| Rev | Author | Line No. | Line |
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| 426 | jermar | 1 | /* |
| 2 | * Copyright (C) 2005 Jakub Jermar |
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| 3 | * All rights reserved. |
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| 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 | |||
| 29 | #include <arch/mm/page.h> |
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| 1382 | decky | 30 | #include <arch/mm/tlb.h> |
| 684 | jermar | 31 | #include <genarch/mm/page_ht.h> |
| 1382 | decky | 32 | #include <mm/frame.h> |
| 33 | #include <bitops.h> |
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| 426 | jermar | 34 | |
| 35 | void page_arch_init(void) |
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| 36 | { |
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| 793 | jermar | 37 | page_mapping_operations = &ht_mapping_operations; |
| 426 | jermar | 38 | } |
| 1382 | decky | 39 | |
| 40 | __address hw_map(__address physaddr, size_t size) |
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| 41 | { |
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| 42 | unsigned int order; |
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| 43 | |||
| 44 | if (size <= FRAME_SIZE) |
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| 45 | order = 0; |
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| 46 | else |
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| 47 | order = (fnzb32(size - 1) + 1) - FRAME_WIDTH; |
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| 48 | |||
| 49 | __address virtaddr = PA2KA(PFN2ADDR(frame_alloc(order, FRAME_KA))); |
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| 50 | |||
| 51 | dtlb_insert_mapping(virtaddr, physaddr, PAGESIZE_512K, true, false); |
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| 52 | dtlb_insert_mapping(virtaddr + 512 * 1024, physaddr + 512 * 1024, PAGESIZE_512K, true, false); |
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| 53 | |||
| 54 | return virtaddr; |
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| 55 | } |