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756 | jermar | 1 | /* |
2 | * Copyright (C) 2006 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 <genarch/mm/as_ht.h> |
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30 | #include <genarch/mm/page_ht.h> |
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31 | #include <mm/as.h> |
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32 | #include <mm/frame.h> |
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33 | #include <arch/types.h> |
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34 | #include <typedefs.h> |
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35 | #include <memstr.h> |
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792 | jermar | 36 | #include <adt/hash_table.h> |
756 | jermar | 37 | |
38 | static pte_t *ht_create(int flags); |
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39 | |||
40 | as_operations_t as_ht_operations = { |
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41 | .page_table_create = ht_create |
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42 | }; |
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43 | |||
44 | |||
45 | /** Page hash table create. |
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46 | * |
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47 | * The page hash table will be created only once |
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48 | * and will be shared by all address spaces. |
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49 | * |
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50 | * @param flags Ignored. |
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51 | * |
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792 | jermar | 52 | * @return Returns NULL. |
756 | jermar | 53 | */ |
54 | pte_t *ht_create(int flags) |
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55 | { |
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792 | jermar | 56 | if (flags & FLAG_AS_KERNEL) { |
57 | hash_table_create(&page_ht, PAGE_HT_ENTRIES, 2, &ht_operations); |
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756 | jermar | 58 | } |
792 | jermar | 59 | return NULL; |
756 | jermar | 60 | } |