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389 | jermar | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2005 Jakub Jermar |
389 | jermar | 3 | * All rights reserved. |
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 | |||
1888 | jermar | 29 | /** @addtogroup ia64mm |
1702 | cejka | 30 | * @{ |
31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
1888 | jermar | 35 | #ifndef KERN_ia64_TLB_H_ |
36 | #define KERN_ia64_TLB_H_ |
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389 | jermar | 37 | |
569 | jermar | 38 | #define tlb_arch_init() |
39 | #define tlb_print() |
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389 | jermar | 40 | |
818 | vana | 41 | #include <arch/mm/page.h> |
42 | #include <arch/mm/asid.h> |
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900 | jermar | 43 | #include <arch/interrupt.h> |
44 | #include <arch/types.h> |
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818 | vana | 45 | |
901 | jermar | 46 | /** Data and instruction Translation Register indices. */ |
47 | #define DTR_KERNEL 0 |
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48 | #define ITR_KERNEL 0 |
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1138 | jermar | 49 | #define DTR_KSTACK1 1 |
50 | #define DTR_KSTACK2 2 |
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818 | vana | 51 | |
901 | jermar | 52 | /** Portion of TLB insertion format data structure. */ |
53 | union tlb_entry { |
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1780 | jermar | 54 | uint64_t word[2]; |
901 | jermar | 55 | struct { |
56 | /* Word 0 */ |
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57 | unsigned p : 1; /**< Present. */ |
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58 | unsigned : 1; |
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59 | unsigned ma : 3; /**< Memory attribute. */ |
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60 | unsigned a : 1; /**< Accessed. */ |
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61 | unsigned d : 1; /**< Dirty. */ |
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62 | unsigned pl : 2; /**< Privilege level. */ |
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63 | unsigned ar : 3; /**< Access rights. */ |
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64 | unsigned long long ppn : 38; /**< Physical Page Number, a.k.a. PFN. */ |
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65 | unsigned : 2; |
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66 | unsigned ed : 1; |
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67 | unsigned ig1 : 11; |
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68 | |||
69 | /* Word 1 */ |
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70 | unsigned : 2; |
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71 | unsigned ps : 6; /**< Page size will be 2^ps. */ |
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72 | unsigned key : 24; /**< Protection key, unused. */ |
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73 | unsigned : 32; |
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74 | } __attribute__ ((packed)); |
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75 | } __attribute__ ((packed)); |
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76 | typedef union tlb_entry tlb_entry_t; |
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77 | |||
1780 | jermar | 78 | extern void tc_mapping_insert(uintptr_t va, asid_t asid, tlb_entry_t entry, bool dtc); |
79 | extern void dtc_mapping_insert(uintptr_t va, asid_t asid, tlb_entry_t entry); |
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80 | extern void itc_mapping_insert(uintptr_t va, asid_t asid, tlb_entry_t entry); |
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901 | jermar | 81 | |
1780 | jermar | 82 | extern void tr_mapping_insert(uintptr_t va, asid_t asid, tlb_entry_t entry, bool dtr, index_t tr); |
83 | extern void dtr_mapping_insert(uintptr_t va, asid_t asid, tlb_entry_t entry, index_t tr); |
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84 | extern void itr_mapping_insert(uintptr_t va, asid_t asid, tlb_entry_t entry, index_t tr); |
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818 | vana | 85 | |
1780 | jermar | 86 | extern void dtlb_kernel_mapping_insert(uintptr_t page, uintptr_t frame, bool dtr, index_t tr); |
87 | extern void dtr_purge(uintptr_t page, count_t width); |
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901 | jermar | 88 | |
902 | jermar | 89 | extern void dtc_pte_copy(pte_t *t); |
90 | extern void itc_pte_copy(pte_t *t); |
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91 | |||
1780 | jermar | 92 | extern void alternate_instruction_tlb_fault(uint64_t vector, istate_t *istate); |
93 | extern void alternate_data_tlb_fault(uint64_t vector, istate_t *istate); |
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94 | extern void data_nested_tlb_fault(uint64_t vector, istate_t *istate); |
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95 | extern void data_dirty_bit_fault(uint64_t vector, istate_t *istate); |
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96 | extern void instruction_access_bit_fault(uint64_t vector, istate_t *istate); |
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97 | extern void data_access_bit_fault(uint64_t vector, istate_t *istate); |
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98 | extern void page_not_present(uint64_t vector, istate_t *istate); |
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818 | vana | 99 | |
389 | jermar | 100 | #endif |
1702 | cejka | 101 | |
1888 | jermar | 102 | /** @} |
1702 | cejka | 103 | */ |