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| Rev | Author | Line No. | Line |
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| 389 | jermar | 1 | /* |
| 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 | |||
| 29 | #ifndef __ia64_TLB_H__ |
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| 30 | #define __ia64_TLB_H__ |
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| 31 | |||
| 569 | jermar | 32 | #define tlb_arch_init() |
| 33 | #define tlb_print() |
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| 389 | jermar | 34 | |
| 818 | vana | 35 | #include <arch/mm/page.h> |
| 36 | #include <arch/mm/asid.h> |
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| 900 | jermar | 37 | #include <arch/interrupt.h> |
| 38 | #include <arch/types.h> |
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| 899 | jermar | 39 | #include <typedefs.h> |
| 818 | vana | 40 | |
| 901 | jermar | 41 | /** Data and instruction Translation Register indices. */ |
| 42 | #define DTR_KERNEL 0 |
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| 43 | #define ITR_KERNEL 0 |
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| 1138 | jermar | 44 | #define DTR_KSTACK1 1 |
| 45 | #define DTR_KSTACK2 2 |
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| 818 | vana | 46 | |
| 901 | jermar | 47 | /** Portion of TLB insertion format data structure. */ |
| 48 | union tlb_entry { |
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| 49 | __u64 word[2]; |
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| 50 | struct { |
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| 51 | /* Word 0 */ |
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| 52 | unsigned p : 1; /**< Present. */ |
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| 53 | unsigned : 1; |
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| 54 | unsigned ma : 3; /**< Memory attribute. */ |
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| 55 | unsigned a : 1; /**< Accessed. */ |
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| 56 | unsigned d : 1; /**< Dirty. */ |
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| 57 | unsigned pl : 2; /**< Privilege level. */ |
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| 58 | unsigned ar : 3; /**< Access rights. */ |
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| 59 | unsigned long long ppn : 38; /**< Physical Page Number, a.k.a. PFN. */ |
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| 60 | unsigned : 2; |
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| 61 | unsigned ed : 1; |
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| 62 | unsigned ig1 : 11; |
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| 63 | |||
| 64 | /* Word 1 */ |
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| 65 | unsigned : 2; |
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| 66 | unsigned ps : 6; /**< Page size will be 2^ps. */ |
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| 67 | unsigned key : 24; /**< Protection key, unused. */ |
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| 68 | unsigned : 32; |
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| 69 | } __attribute__ ((packed)); |
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| 70 | } __attribute__ ((packed)); |
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| 71 | typedef union tlb_entry tlb_entry_t; |
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| 72 | |||
| 73 | extern void tc_mapping_insert(__address va, asid_t asid, tlb_entry_t entry, bool dtc); |
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| 74 | extern void dtc_mapping_insert(__address va, asid_t asid, tlb_entry_t entry); |
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| 75 | extern void itc_mapping_insert(__address va, asid_t asid, tlb_entry_t entry); |
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| 76 | |||
| 899 | jermar | 77 | extern void tr_mapping_insert(__address va, asid_t asid, tlb_entry_t entry, bool dtr, index_t tr); |
| 78 | extern void dtr_mapping_insert(__address va, asid_t asid, tlb_entry_t entry, index_t tr); |
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| 79 | extern void itr_mapping_insert(__address va, asid_t asid, tlb_entry_t entry, index_t tr); |
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| 818 | vana | 80 | |
| 902 | jermar | 81 | extern void dtlb_kernel_mapping_insert(__address page, __address frame, bool dtr, index_t tr); |
| 901 | jermar | 82 | |
| 902 | jermar | 83 | extern void dtc_pte_copy(pte_t *t); |
| 84 | extern void itc_pte_copy(pte_t *t); |
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| 85 | |||
| 958 | jermar | 86 | extern void alternate_instruction_tlb_fault(__u64 vector, istate_t *istate); |
| 87 | extern void alternate_data_tlb_fault(__u64 vector, istate_t *istate); |
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| 88 | extern void data_nested_tlb_fault(__u64 vector, istate_t *istate); |
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| 89 | extern void data_dirty_bit_fault(__u64 vector, istate_t *istate); |
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| 90 | extern void instruction_access_bit_fault(__u64 vector, istate_t *istate); |
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| 91 | extern void data_access_bit_fault(__u64 vector, istate_t *istate); |
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| 92 | extern void page_not_present(__u64 vector, istate_t *istate); |
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| 818 | vana | 93 | |
| 389 | jermar | 94 | #endif |