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| Rev | Author | Line No. | Line |
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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 | |||
| 727 | jermar | 37 | #include <arch/mm/asid.h> |
| 38 | #include <typedefs.h> |
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| 39 | |||
| 687 | jermar | 40 | #define ASID_KERNEL 0 |
| 727 | jermar | 41 | #define ASID_INVALID 1 |
| 42 | #define ASID_START 2 |
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| 43 | #define ASID_MAX ASID_MAX_ARCH |
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| 687 | jermar | 44 | |
| 727 | jermar | 45 | #define ASIDS_ALLOCABLE ((ASID_MAX+1)-ASID_START) |
| 46 | |||
| 47 | extern spinlock_t asidlock; |
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| 48 | extern link_t as_with_asid_head; |
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| 49 | |||
| 50 | extern asid_t asid_get(void); |
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| 51 | extern void asid_put(asid_t asid); |
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| 52 | |||
| 53 | #ifndef asid_install |
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| 54 | extern void asid_install(as_t *as); |
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| 55 | #endif /* !def asid_install */ |
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| 56 | |||
| 57 | #define asid_find_free() ASID_START |
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| 58 | #define asid_put_arch(x) |
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| 59 | |||
| 687 | jermar | 60 | #endif |