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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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| 3675 | svoboda | 49 | #define DTR_KSTACK1 4 |
| 50 | #define DTR_KSTACK2 5 |
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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 | */ |