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| 1 | /* |
1 | /* |
| 2 | * Copyright (C) 2006 Jakub Jermar |
2 | * Copyright (C) 2006 Jakub Jermar |
| 3 | * All rights reserved. |
3 | * All rights reserved. |
| 4 | * |
4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
7 | * are met: |
| 8 | * |
8 | * |
| 9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
| 14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
| 15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
| 16 | * |
16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
27 | */ |
| 28 | 28 | ||
| 29 | /* |
29 | /* |
| 30 | * TLB management. |
30 | * TLB management. |
| 31 | */ |
31 | */ |
| 32 | 32 | ||
| 33 | #include <mm/tlb.h> |
33 | #include <mm/tlb.h> |
| 34 | #include <arch/mm/asid.h> |
34 | #include <arch/mm/tlb.h> |
| - | 35 | ||
| 35 | 36 | ||
| 36 | /** Invalidate all TLB entries. */ |
37 | /** Invalidate all TLB entries. */ |
| 37 | void tlb_invalidate_all(void) |
38 | void tlb_invalidate_all(void) |
| 38 | { |
39 | { |
| 39 | /* TODO */ |
40 | /* TODO */ |
| 40 | } |
41 | } |
| 41 | 42 | ||
| 42 | /** Invalidate entries belonging to an address space. |
43 | /** Invalidate entries belonging to an address space. |
| 43 | * |
44 | * |
| 44 | * @param asid Address space identifier. |
45 | * @param asid Address space identifier. |
| 45 | */ |
46 | */ |
| 46 | void tlb_invalidate_asid(asid_t asid) |
47 | void tlb_invalidate_asid(asid_t asid) |
| 47 | { |
48 | { |
| 48 | /* TODO */ |
49 | /* TODO */ |
| 49 | } |
50 | } |
| - | 51 | ||
| - | 52 | ||
| - | 53 | ||
| - | 54 | void tlb_fill_data(__address va,asid_t asid,vhpt_entry_t entry) |
|
| - | 55 | { |
|
| - | 56 | region_register rr; |
|
| - | 57 | ||
| - | 58 | ||
| - | 59 | if(!(entry.not_present.p)) return; |
|
| - | 60 | ||
| - | 61 | rr.word=rr_read(VA_REGION(va)); |
|
| - | 62 | ||
| - | 63 | if(rr.map.rid==ASID2RID(asid,VA_REGION(va))) |
|
| - | 64 | { |
|
| - | 65 | asm |
|
| - | 66 | ( |
|
| - | 67 | "srlz.i;;\n" |
|
| - | 68 | "srlz.d;;\n" |
|
| - | 69 | "mov r8=psr;;\n" |
|
| - | 70 | "and r9=r8,%0;;\n" /*(~PSR_IC_MASK)*/ |
|
| - | 71 | "mov psr.l=r9;;\n" |
|
| - | 72 | "srlz.d;;\n" |
|
| - | 73 | "srlz.i;;\n" |
|
| - | 74 | "mov cr20=%1\n" /*va*/ /*cr20 == IFA*/ |
|
| - | 75 | "mov cr21=%2;;\n" /*entry.word[1]*/ /*cr21=ITIR*/ |
|
| - | 76 | "itc.d %3;;\n" /*entry.word[0]*/ |
|
| - | 77 | "mov psr.l=r8;;\n" |
|
| - | 78 | "srlz.d;;\n" |
|
| - | 79 | : |
|
| - | 80 | :"r"(~PSR_IC_MASK),"r"(va),"r"(entry.word[1]),"r"(entry.word[0]) |
|
| - | 81 | :"r8","r9" |
|
| - | 82 | ); |
|
| - | 83 | } |
|
| - | 84 | else |
|
| - | 85 | { |
|
| - | 86 | region_register rr0; |
|
| - | 87 | rr0=rr; |
|
| - | 88 | rr0.map.rid=ASID2RID(asid,VA_REGION(va)); |
|
| - | 89 | rr_write(VA_REGION(va),rr0.word); |
|
| - | 90 | asm |
|
| - | 91 | ( |
|
| - | 92 | "mov r8=psr;;\n" |
|
| - | 93 | "and r9=r8,%0;;\n" /*(~PSR_IC_MASK)*/ |
|
| - | 94 | "mov psr.l=r9;;\n" |
|
| - | 95 | "srlz.d;;\n" |
|
| - | 96 | "mov cr20=%1\n" /*va*/ /*cr20 == IFA*/ |
|
| - | 97 | "mov cr21=%2;;\n" /*entry.word[1]*/ /*cr21=ITIR*/ |
|
| - | 98 | "itc.d %3;;\n" /*entry.word[0]*/ |
|
| - | 99 | "mov psr.l=r8;;\n" |
|
| - | 100 | "srlz.d;;\n" |
|
| - | 101 | : |
|
| - | 102 | :"r"(~PSR_IC_MASK),"r"(va),"r"(entry.word[1]),"r"(entry.word[0]) |
|
| - | 103 | :"r8","r9" |
|
| - | 104 | ); |
|
| - | 105 | rr_write(VA_REGION(va),rr.word); |
|
| - | 106 | } |
|
| - | 107 | ||
| - | 108 | ||
| - | 109 | } |
|
| - | 110 | ||
| - | 111 | void tlb_fill_code(__address va,asid_t asid,vhpt_entry_t entry) |
|
| - | 112 | { |
|
| - | 113 | region_register rr; |
|
| - | 114 | ||
| - | 115 | ||
| - | 116 | if(!(entry.not_present.p)) return; |
|
| - | 117 | ||
| - | 118 | rr.word=rr_read(VA_REGION(va)); |
|
| - | 119 | ||
| - | 120 | if(rr.map.rid==ASID2RID(asid,VA_REGION(va))) |
|
| - | 121 | { |
|
| - | 122 | asm |
|
| - | 123 | ( |
|
| - | 124 | "srlz.i;;\n" |
|
| - | 125 | "srlz.d;;\n" |
|
| - | 126 | "mov r8=psr;;\n" |
|
| - | 127 | "and r9=r8,%0;;\n" /*(~PSR_IC_MASK)*/ |
|
| - | 128 | "mov psr.l=r9;;\n" |
|
| - | 129 | "srlz.d;;\n" |
|
| - | 130 | "srlz.i;;\n" |
|
| - | 131 | "mov cr20=%1\n" /*va*/ /*cr20 == IFA*/ |
|
| - | 132 | "mov cr21=%2;;\n" /*entry.word[1]*/ /*cr21=ITIR*/ |
|
| - | 133 | "itc.i %3;;\n" /*entry.word[0]*/ |
|
| - | 134 | "mov psr.l=r8;;\n" |
|
| - | 135 | "srlz.d;;\n" |
|
| - | 136 | : |
|
| - | 137 | :"r"(~PSR_IC_MASK),"r"(va),"r"(entry.word[1]),"r"(entry.word[0]) |
|
| - | 138 | :"r8","r9" |
|
| - | 139 | ); |
|
| - | 140 | } |
|
| - | 141 | else |
|
| - | 142 | { |
|
| - | 143 | region_register rr0; |
|
| - | 144 | rr0=rr; |
|
| - | 145 | rr0.map.rid=ASID2RID(asid,VA_REGION(va)); |
|
| - | 146 | rr_write(VA_REGION(va),rr0.word); |
|
| - | 147 | asm |
|
| - | 148 | ( |
|
| - | 149 | "mov r8=psr;;\n" |
|
| - | 150 | "and r9=r8,%0;;\n" /*(~PSR_IC_MASK)*/ |
|
| - | 151 | "mov psr.l=r9;;\n" |
|
| - | 152 | "srlz.d;;\n" |
|
| - | 153 | "mov cr20=%1\n" /*va*/ /*cr20 == IFA*/ |
|
| - | 154 | "mov cr21=%2;;\n" /*entry.word[1]*/ /*cr21=ITIR*/ |
|
| - | 155 | "itc.i %3;;\n" /*entry.word[0]*/ |
|
| - | 156 | "mov psr.l=r8;;\n" |
|
| - | 157 | "srlz.d;;\n" |
|
| - | 158 | : |
|
| - | 159 | :"r"(~PSR_IC_MASK),"r"(va),"r"(entry.word[1]),"r"(entry.word[0]) |
|
| - | 160 | :"r8","r9" |
|
| - | 161 | ); |
|
| - | 162 | rr_write(VA_REGION(va),rr.word); |
|
| - | 163 | } |
|
| - | 164 | ||
| - | 165 | ||
| - | 166 | } |
|
| - | 167 | ||
| - | 168 | ||
| 50 | 169 | ||