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687 | 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 | |||
727 | jermar | 29 | /* |
30 | * This is generic interface for managing |
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31 | * Address Space IDentifiers (ASIDs). |
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32 | */ |
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33 | |||
687 | jermar | 34 | #ifndef __ASID_H__ |
35 | #define __ASID_H__ |
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36 | |||
869 | vana | 37 | #ifndef __ASM__ |
38 | |||
727 | jermar | 39 | #include <arch/mm/asid.h> |
40 | #include <typedefs.h> |
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41 | |||
869 | vana | 42 | #endif |
43 | |||
687 | jermar | 44 | #define ASID_KERNEL 0 |
727 | jermar | 45 | #define ASID_INVALID 1 |
46 | #define ASID_START 2 |
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47 | #define ASID_MAX ASID_MAX_ARCH |
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687 | jermar | 48 | |
869 | vana | 49 | #ifndef __ASM__ |
50 | |||
727 | jermar | 51 | #define ASIDS_ALLOCABLE ((ASID_MAX+1)-ASID_START) |
52 | |||
53 | extern spinlock_t asidlock; |
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869 | vana | 54 | extern link_t as_with_asid_head; |
727 | jermar | 55 | |
880 | jermar | 56 | #ifndef asid_get |
57 | extern asid_t asid_get(void); |
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58 | #endif /* !def asid_get */ |
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59 | |||
60 | #ifndef asid_put |
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727 | jermar | 61 | extern void asid_put(asid_t asid); |
880 | jermar | 62 | #endif /* !def asid_put */ |
727 | jermar | 63 | |
64 | #ifndef asid_install |
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65 | extern void asid_install(as_t *as); |
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66 | #endif /* !def asid_install */ |
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67 | |||
730 | jermar | 68 | #ifndef asid_find_free |
69 | extern asid_t asid_find_free(void); |
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70 | #endif /* !def asid_find_free */ |
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727 | jermar | 71 | |
730 | jermar | 72 | #ifndef asid_put_arch |
73 | extern void asid_put_arch(asid_t asid); |
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74 | #endif /* !def asid_put_arch */ |
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75 | |||
687 | jermar | 76 | #endif |
869 | vana | 77 | |
78 | #endif |
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79 |