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2128 | jermar | 1 | /* |
2 | * Copyright (c) 2003-2007 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 | /** @addtogroup arm32 |
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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 | |||
35 | #ifndef KERN_arm32_TYPES_H_ |
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36 | #define KERN_arm32_TYPES_H_ |
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37 | |||
38 | #define NULL 0 |
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39 | #define false 0 |
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40 | #define true 1 |
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41 | |||
42 | typedef signed char int8_t; |
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43 | typedef signed short int16_t; |
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44 | typedef signed long int32_t; |
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45 | typedef signed long long int64_t; |
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46 | |||
47 | typedef unsigned char uint8_t; |
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48 | typedef unsigned short uint16_t; |
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49 | typedef unsigned long uint32_t; |
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50 | typedef unsigned long long uint64_t; |
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51 | |||
52 | typedef uint32_t size_t; |
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53 | typedef uint32_t count_t; |
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54 | typedef uint32_t index_t; |
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55 | |||
56 | typedef uint32_t uintptr_t; |
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57 | typedef uint32_t pfn_t; |
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58 | |||
59 | typedef uint32_t ipl_t; |
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60 | |||
61 | typedef uint32_t unative_t; |
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62 | typedef int32_t native_t; |
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63 | |||
64 | typedef uint8_t bool; |
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65 | typedef uint64_t task_id_t; |
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66 | typedef uint32_t context_id_t; |
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67 | |||
68 | typedef int32_t inr_t; |
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69 | typedef int32_t devno_t; |
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70 | |||
71 | /** Page Table Entry. */ |
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72 | typedef struct { |
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2147 | jancik | 73 | /**PageTables are so different that we have different types |
74 | * for level 0 and level1 page table entries |
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75 | */ |
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76 | unsigned dummy : 32; |
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2128 | jermar | 77 | } pte_t; |
78 | |||
2147 | jancik | 79 | typedef struct { |
80 | unsigned destriptor_type : 2; |
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81 | unsigned machine_depend : 3; // Alf: ???? v Architecture previev neni vyznam definovan |
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82 | unsigned domain : 4; |
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83 | unsigned should_be_zero : 1: |
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84 | unsigned coarse_table_addr : 22; |
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85 | } __attribute__ ((packed)) pte_level0_t; |
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86 | |||
87 | //TODO Alf: Comments |
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88 | typedef struct { |
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89 | unsigned destriptor_type : 2; |
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90 | unsigned bufferable : 1; |
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91 | unsigned cacheable : 1; |
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92 | unsigned access_permission_0 : 2; |
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93 | unsigned access_permission_1 : 2; |
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94 | unsigned access_permission_2 : 2; |
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95 | unsigned access_permission_3 : 2; |
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96 | unsigned frame_base_addr : 20; |
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97 | } __attribute__ ((packed)) pte__level1_t; |
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98 | |||
99 | /// Page table level 1 access permission constants |
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100 | /// User no acess, kernel no access |
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101 | #define pte_ap_user_no_kernel_no 0 |
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102 | /// User no acess, kernel read/write |
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103 | #define pte_ap_user_no_kernel_rw 1 |
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104 | /// User read only, kernel read/write |
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105 | #define pte_ap_user_ro_kernel_rw 2 |
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106 | /// User read/write, kernel read/write |
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107 | #define pte_ap_user_rw_kernel_rw 2 |
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108 | |||
109 | /// Value of descriptor_type in pte_level0_t and pte_level1_t that signal not present flag |
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110 | #define pte_descriptor_not_preset 0 |
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111 | /// Value of descriptor_type in pte_level0_t that signal a coarse page table format |
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112 | #define pte_descriptor_coarse_table 1 |
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113 | /// Value of descriptor_type in pte_level1_t that signal a small page table entry format |
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114 | #define pte_descriptor_small_page 2 |
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115 | |||
2128 | jermar | 116 | #endif |
117 | |||
118 | /** @} |
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119 | */ |