| 1 | /*
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| 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 |
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| 29 | /** @addtogroup genericmm
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| 30 | * @{
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| 31 | */
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| 32 | /** @file
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| 33 | */
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| 34 |
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| 35 | /*
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| 36 | * This is generic interface for managing
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| 37 | * Address Space IDentifiers (ASIDs).
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| 38 | */
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| 39 |
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| 40 | #ifndef KERN_ASID_H_
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| 41 | #define KERN_ASID_H_
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| 42 |
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| 43 | #ifndef __ASM__
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| 44 |
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| 45 | #include <arch/mm/asid.h>
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| 46 | #include <typedefs.h>
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| 47 |
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| 48 | #endif
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| 49 |
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| 50 | #define ASID_KERNEL 0
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| 51 | #define ASID_INVALID 1
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| 52 | #define ASID_START 2
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| 53 | #define ASID_MAX ASID_MAX_ARCH
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| 54 |
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| 55 | #ifndef __ASM__
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| 56 |
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| 57 | #define ASIDS_ALLOCABLE ((ASID_MAX+1)-ASID_START)
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| 58 |
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| 59 | extern spinlock_t asidlock;
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| 60 | extern link_t as_with_asid_head;
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| 61 |
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| 62 | #ifndef asid_get
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| 63 | extern asid_t asid_get(void);
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| 64 | #endif /* !def asid_get */
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| 65 |
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| 66 | #ifndef asid_put
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| 67 | extern void asid_put(asid_t asid);
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| 68 | #endif /* !def asid_put */
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| 69 |
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| 70 | #ifndef asid_install
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| 71 | extern void asid_install(as_t *as);
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| 72 | #endif /* !def asid_install */
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| 73 |
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| 74 | #ifndef asid_find_free
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| 75 | extern asid_t asid_find_free(void);
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| 76 | #endif /* !def asid_find_free */
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| 77 |
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| 78 | #ifndef asid_put_arch
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| 79 | extern void asid_put_arch(asid_t asid);
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| 80 | #endif /* !def asid_put_arch */
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| 81 |
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| 82 | #endif
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| 83 |
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| 84 | #endif
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| 85 |
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| 86 | /** @}
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| 87 | */
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