| 1 | /*
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| 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 |
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| 29 | #ifndef __sparc64_TTE_H__
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| 30 | #define __sparc64_TTE_H__
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| 31 |
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| 32 | #include <arch/types.h>
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| 33 |
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| 34 | /** Translation Table Entry - Tag. */
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| 35 | union tte_tag {
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| 36 | __u64 value;
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| 37 | struct {
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| 38 | unsigned g : 1; /**< Global. */
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| 39 | unsigned : 2; /**< Reserved. */
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| 40 | unsigned context : 13; /**< Context identifier. */
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| 41 | unsigned : 6; /**< Reserved. */
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| 42 | long va_tag : 42; /**< Virtual Address Tag, bits 63:22. */
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| 43 | } __attribute__ ((packed));
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| 44 | };
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| 45 |
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| 46 | typedef union tte_tag tte_tag_t;
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| 47 |
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| 48 | /** Translation Table Entry - Data. */
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| 49 | union tte_data {
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| 50 | __u64 value;
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| 51 | struct {
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| 52 | unsigned v : 1; /**< Valid. */
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| 53 | unsigned size : 2; /**< Page size of this entry. */
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| 54 | unsigned nfo : 1; /**< No-Fault-Only. */
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| 55 | unsigned ie : 1; /**< Invert Endianness. */
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| 56 | unsigned soft2 : 9; /**< Software defined field. */
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| 57 | unsigned diag : 9; /**< Diagnostic data. */
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| 58 | unsigned pa : 28; /**< Physical page number. */
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| 59 | unsigned soft : 6; /**< Software defined field. */
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| 60 | unsigned l : 1; /**< Lock. */
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| 61 | unsigned cp : 1; /**< Cacheable in physically indexed cache. */
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| 62 | unsigned cv : 1; /**< Cacheable in virtually indexed cache. */
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| 63 | unsigned e : 1; /**< Side-effect. */
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| 64 | unsigned p : 1; /**< Privileged. */
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| 65 | unsigned w : 1; /**< Writable. */
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| 66 | unsigned g : 1; /**< Global. */
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| 67 | } __attribute__ ((packed));
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| 68 | };
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| 69 |
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| 70 | typedef union tte_data tte_data_t;
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| 71 |
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| 72 | #endif
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