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| 1 | # |
1 | # |
| 2 | # Copyright (C) 2003-2004 Jakub Jermar |
2 | # Copyright (C) 2003-2004 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 | #include <arch/asm/regname.h> |
|
| - | 30 | ||
| 29 | .text |
31 | .text |
| 30 | 32 | ||
| 31 | .macro cp0_read reg |
33 | .macro cp0_read reg |
| 32 | mfc0 $2,\reg |
34 | mfc0 $2,\reg |
| 33 | j $31 |
35 | j $31 |
| 34 | nop |
36 | nop |
| 35 | .endm |
37 | .endm |
| 36 | 38 | ||
| 37 | .macro cp0_write reg |
39 | .macro cp0_write reg |
| 38 | mtc0 $4,\reg |
40 | mtc0 $4,\reg |
| 39 | j $31 |
41 | j $31 |
| 40 | nop |
42 | nop |
| 41 | .endm |
43 | .endm |
| 42 | 44 | ||
| 43 | .set noat |
45 | .set noat |
| 44 | .set noreorder |
46 | .set noreorder |
| 45 | .set nomacro |
47 | .set nomacro |
| 46 | 48 | ||
| 47 | .global cp0_index_read |
49 | .global cp0_index_read |
| 48 | .global cp0_index_write |
50 | .global cp0_index_write |
| 49 | .global cp0_random_read |
51 | .global cp0_random_read |
| 50 | .global cp0_entry_lo0_read |
52 | .global cp0_entry_lo0_read |
| 51 | .global cp0_entry_lo0_write |
53 | .global cp0_entry_lo0_write |
| 52 | .global cp0_entry_lo1_read |
54 | .global cp0_entry_lo1_read |
| 53 | .global cp0_entry_lo1_write |
55 | .global cp0_entry_lo1_write |
| 54 | .global cp0_context_read |
56 | .global cp0_context_read |
| 55 | .global cp0_context_write |
57 | .global cp0_context_write |
| 56 | .global cp0_pagemask_read |
58 | .global cp0_pagemask_read |
| 57 | .global cp0_pagemask_write |
59 | .global cp0_pagemask_write |
| 58 | .global cp0_wired_read |
60 | .global cp0_wired_read |
| 59 | .global cp0_wired_write |
61 | .global cp0_wired_write |
| 60 | .global cp0_badvaddr_read |
62 | .global cp0_badvaddr_read |
| 61 | .global cp0_count_read |
63 | .global cp0_count_read |
| 62 | .global cp0_count_write |
64 | .global cp0_count_write |
| 63 | .global cp0_hi_read |
65 | .global cp0_hi_read |
| 64 | .global cp0_hi_write |
66 | .global cp0_hi_write |
| 65 | .global cp0_compare_read |
67 | .global cp0_compare_read |
| 66 | .global cp0_compare_write |
68 | .global cp0_compare_write |
| 67 | .global cp0_status_read |
69 | .global cp0_status_read |
| 68 | .global cp0_status_write |
70 | .global cp0_status_write |
| 69 | .global cp0_cause_read |
71 | .global cp0_cause_read |
| 70 | .global cp0_cause_write |
72 | .global cp0_cause_write |
| 71 | .global cp0_epc_read |
73 | .global cp0_epc_read |
| 72 | .global cp0_epc_write |
74 | .global cp0_epc_write |
| 73 | .global cp0_prid_read |
75 | .global cp0_prid_read |
| 74 | 76 | ||
| 75 | cp0_index_read: cp0_read $0 |
77 | cp0_index_read: cp0_read $0 |
| 76 | cp0_index_write: cp0_write $0 |
78 | cp0_index_write: cp0_write $0 |
| 77 | 79 | ||
| 78 | cp0_random_read: cp0_read $1 |
80 | cp0_random_read: cp0_read $1 |
| 79 | 81 | ||
| 80 | cp0_entry_lo0_read: cp0_read $2 |
82 | cp0_entry_lo0_read: cp0_read $2 |
| 81 | cp0_entry_lo0_write: cp0_write $2 |
83 | cp0_entry_lo0_write: cp0_write $2 |
| 82 | 84 | ||
| 83 | cp0_entry_lo1_read: cp0_read $3 |
85 | cp0_entry_lo1_read: cp0_read $3 |
| 84 | cp0_entry_lo1_write: cp0_write $3 |
86 | cp0_entry_lo1_write: cp0_write $3 |
| 85 | 87 | ||
| 86 | cp0_context_read: cp0_read $4 |
88 | cp0_context_read: cp0_read $4 |
| 87 | cp0_context_write: cp0_write $4 |
89 | cp0_context_write: cp0_write $4 |
| 88 | 90 | ||
| 89 | cp0_pagemask_read: cp0_read $5 |
91 | cp0_pagemask_read: cp0_read $5 |
| 90 | cp0_pagemask_write: cp0_write $5 |
92 | cp0_pagemask_write: cp0_write $5 |
| 91 | 93 | ||
| 92 | cp0_wired_read: cp0_read $6 |
94 | cp0_wired_read: cp0_read $6 |
| 93 | cp0_wired_write: cp0_write $6 |
95 | cp0_wired_write: cp0_write $6 |
| 94 | 96 | ||
| 95 | cp0_badvaddr_read: cp0_read $8 |
97 | cp0_badvaddr_read: cp0_read $8 |
| 96 | 98 | ||
| 97 | cp0_count_read: cp0_read $9 |
99 | cp0_count_read: cp0_read $9 |
| 98 | cp0_count_write: cp0_write $9 |
100 | cp0_count_write: cp0_write $9 |
| 99 | 101 | ||
| 100 | cp0_entry_hi_read: cp0_read $10 |
102 | cp0_entry_hi_read: cp0_read $10 |
| 101 | cp0_entry_hi_write: cp0_write $10 |
103 | cp0_entry_hi_write: cp0_write $10 |
| 102 | 104 | ||
| 103 | cp0_compare_read: cp0_read $11 |
105 | cp0_compare_read: cp0_read $11 |
| 104 | cp0_compare_write: cp0_write $11 |
106 | cp0_compare_write: cp0_write $11 |
| 105 | 107 | ||
| 106 | cp0_status_read: cp0_read $12 |
108 | cp0_status_read: cp0_read $12 |
| 107 | cp0_status_write: cp0_write $12 |
109 | cp0_status_write: cp0_write $12 |
| 108 | 110 | ||
| 109 | cp0_cause_read: cp0_read $13 |
111 | cp0_cause_read: cp0_read $13 |
| 110 | cp0_cause_write: cp0_write $13 |
112 | cp0_cause_write: cp0_write $13 |
| 111 | 113 | ||
| 112 | cp0_epc_read: cp0_read $14 |
114 | cp0_epc_read: cp0_read $14 |
| 113 | cp0_epc_write: cp0_write $14 |
115 | cp0_epc_write: cp0_write $14 |
| 114 | 116 | ||
| 115 | cp0_prid_read: cp0_read $15 |
117 | cp0_prid_read: cp0_read $15 |
| 116 | 118 | ||
| 117 | 119 | ||
| 118 | .global tlbp |
- | |
| 119 | tlbp: |
- | |
| 120 | tlbp |
- | |
| 121 | j $31 |
- | |
| 122 | nop |
- | |
| 123 | - | ||
| 124 | .global tlbr |
- | |
| 125 | tlbr: |
- | |
| 126 | tlbr |
- | |
| 127 | j $31 |
- | |
| 128 | nop |
- | |
| 129 | - | ||
| 130 | .global tlbwi |
- | |
| 131 | tlbwi: |
- | |
| 132 | tlbwi |
- | |
| 133 | j $31 |
- | |
| 134 | nop |
- | |
| 135 | - | ||
| 136 | .global tlbwr |
- | |
| 137 | tlbwr: |
- | |
| 138 | tlbwr |
- | |
| 139 | j $31 |
- | |
| 140 | nop |
- | |
| 141 | - | ||
| 142 | .global cpu_halt |
120 | .global cpu_halt |
| 143 | cpu_halt: |
121 | cpu_halt: |
| 144 | j cpu_halt |
122 | j cpu_halt |
| 145 | nop |
123 | nop |
| 146 | 124 | ||
| 147 | 125 | ||
| 148 | .global memsetb |
126 | .global memsetb |
| 149 | memsetb: |
127 | memsetb: |
| 150 | j _memsetb |
128 | j _memsetb |
| 151 | nop |
129 | nop |
| 152 | 130 | ||
| 153 | .global memcpy |
131 | .global memcpy |
| 154 | memcpy: |
132 | memcpy: |
| 155 | j _memcpy |
133 | j _memcpy |
| 156 | nop |
134 | nop |
| 157 | 135 | ||
| - | 136 | .macro fpu_gp_save reg ctx |
|
| - | 137 | mfc1 $t0,$\reg |
|
| - | 138 | sw $t0, \reg*4(\ctx) |
|
| - | 139 | .endm |
|
| - | 140 | ||
| - | 141 | .macro fpu_gp_restore reg ctx |
|
| - | 142 | lw $t0, \reg*4(\ctx) |
|
| - | 143 | mtc1 $t0,$\reg |
|
| - | 144 | .endm |
|
| - | 145 | ||
| - | 146 | .macro fpu_ct_save reg ctx |
|
| - | 147 | cfc1 $t0,$1 |
|
| - | 148 | sw $t0, (\reg+32)*4(\ctx) |
|
| - | 149 | .endm |
|
| - | 150 | ||
| - | 151 | .macro fpu_ct_restore reg ctx |
|
| - | 152 | lw $t0, (\reg+32)*4(\ctx) |
|
| - | 153 | ctc1 $t0,$\reg |
|
| - | 154 | .endm |
|
| - | 155 | ||
| - | 156 | ||
| - | 157 | .global fpu_context_save |
|
| - | 158 | fpu_context_save: |
|
| - | 159 | #ifdef HAVE_FPU |
|
| - | 160 | fpu_gp_save 0,$a0 |
|
| - | 161 | fpu_gp_save 1,$a0 |
|
| - | 162 | fpu_gp_save 2,$a0 |
|
| - | 163 | fpu_gp_save 3,$a0 |
|
| - | 164 | fpu_gp_save 4,$a0 |
|
| - | 165 | fpu_gp_save 5,$a0 |
|
| - | 166 | fpu_gp_save 6,$a0 |
|
| - | 167 | fpu_gp_save 7,$a0 |
|
| - | 168 | fpu_gp_save 8,$a0 |
|
| - | 169 | fpu_gp_save 9,$a0 |
|
| - | 170 | fpu_gp_save 10,$a0 |
|
| - | 171 | fpu_gp_save 11,$a0 |
|
| - | 172 | fpu_gp_save 12,$a0 |
|
| - | 173 | fpu_gp_save 13,$a0 |
|
| - | 174 | fpu_gp_save 14,$a0 |
|
| - | 175 | fpu_gp_save 15,$a0 |
|
| - | 176 | fpu_gp_save 16,$a0 |
|
| - | 177 | fpu_gp_save 17,$a0 |
|
| - | 178 | fpu_gp_save 18,$a0 |
|
| - | 179 | fpu_gp_save 19,$a0 |
|
| - | 180 | fpu_gp_save 20,$a0 |
|
| - | 181 | fpu_gp_save 21,$a0 |
|
| - | 182 | fpu_gp_save 22,$a0 |
|
| - | 183 | fpu_gp_save 23,$a0 |
|
| - | 184 | fpu_gp_save 24,$a0 |
|
| - | 185 | fpu_gp_save 25,$a0 |
|
| - | 186 | fpu_gp_save 26,$a0 |
|
| - | 187 | fpu_gp_save 27,$a0 |
|
| - | 188 | fpu_gp_save 28,$a0 |
|
| - | 189 | fpu_gp_save 29,$a0 |
|
| - | 190 | fpu_gp_save 30,$a0 |
|
| - | 191 | fpu_gp_save 31,$a0 |
|
| - | 192 | ||
| - | 193 | fpu_ct_save 1,$a0 |
|
| - | 194 | fpu_ct_save 2,$a0 |
|
| - | 195 | fpu_ct_save 3,$a0 |
|
| - | 196 | fpu_ct_save 4,$a0 |
|
| - | 197 | fpu_ct_save 5,$a0 |
|
| - | 198 | fpu_ct_save 6,$a0 |
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| - | 199 | fpu_ct_save 7,$a0 |
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| - | 200 | fpu_ct_save 8,$a0 |
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| - | 201 | fpu_ct_save 9,$a0 |
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| - | 202 | fpu_ct_save 10,$a0 |
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| - | 203 | fpu_ct_save 11,$a0 |
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| - | 204 | fpu_ct_save 12,$a0 |
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| - | 205 | fpu_ct_save 13,$a0 |
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| - | 206 | fpu_ct_save 14,$a0 |
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| - | 207 | fpu_ct_save 15,$a0 |
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| - | 208 | fpu_ct_save 16,$a0 |
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| - | 209 | fpu_ct_save 17,$a0 |
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| - | 210 | fpu_ct_save 18,$a0 |
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| - | 211 | fpu_ct_save 19,$a0 |
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| - | 212 | fpu_ct_save 20,$a0 |
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| - | 213 | fpu_ct_save 21,$a0 |
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| - | 214 | fpu_ct_save 22,$a0 |
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| - | 215 | fpu_ct_save 23,$a0 |
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| - | 216 | fpu_ct_save 24,$a0 |
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| - | 217 | fpu_ct_save 25,$a0 |
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| - | 218 | fpu_ct_save 26,$a0 |
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| - | 219 | fpu_ct_save 27,$a0 |
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| - | 220 | fpu_ct_save 28,$a0 |
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| - | 221 | fpu_ct_save 29,$a0 |
|
| - | 222 | fpu_ct_save 30,$a0 |
|
| - | 223 | fpu_ct_save 31,$a0 |
|
| - | 224 | #endif |
|
| - | 225 | j $ra |
|
| - | 226 | nop |
|
| - | 227 | ||
| - | 228 | .global fpu_context_restore |
|
| - | 229 | fpu_context_restore: |
|
| - | 230 | #ifdef HAVE_FPU |
|
| - | 231 | fpu_gp_restore 0,$a0 |
|
| - | 232 | fpu_gp_restore 1,$a0 |
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| - | 233 | fpu_gp_restore 2,$a0 |
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| - | 234 | fpu_gp_restore 3,$a0 |
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| - | 235 | fpu_gp_restore 4,$a0 |
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| - | 236 | fpu_gp_restore 5,$a0 |
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| - | 237 | fpu_gp_restore 6,$a0 |
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| - | 238 | fpu_gp_restore 7,$a0 |
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| - | 239 | fpu_gp_restore 8,$a0 |
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| - | 240 | fpu_gp_restore 9,$a0 |
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| - | 241 | fpu_gp_restore 10,$a0 |
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| - | 242 | fpu_gp_restore 11,$a0 |
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| - | 243 | fpu_gp_restore 12,$a0 |
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| - | 244 | fpu_gp_restore 13,$a0 |
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| - | 245 | fpu_gp_restore 14,$a0 |
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| - | 246 | fpu_gp_restore 15,$a0 |
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| - | 247 | fpu_gp_restore 16,$a0 |
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| - | 248 | fpu_gp_restore 17,$a0 |
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| - | 249 | fpu_gp_restore 18,$a0 |
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| - | 250 | fpu_gp_restore 19,$a0 |
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| - | 251 | fpu_gp_restore 20,$a0 |
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| - | 252 | fpu_gp_restore 21,$a0 |
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| - | 253 | fpu_gp_restore 22,$a0 |
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| - | 254 | fpu_gp_restore 23,$a0 |
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| - | 255 | fpu_gp_restore 24,$a0 |
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| - | 256 | fpu_gp_restore 25,$a0 |
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| - | 257 | fpu_gp_restore 26,$a0 |
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| - | 258 | fpu_gp_restore 27,$a0 |
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| - | 259 | fpu_gp_restore 28,$a0 |
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| - | 260 | fpu_gp_restore 29,$a0 |
|
| - | 261 | fpu_gp_restore 30,$a0 |
|
| - | 262 | fpu_gp_restore 31,$a0 |
|
| - | 263 | ||
| - | 264 | fpu_ct_restore 1,$a0 |
|
| - | 265 | fpu_ct_restore 2,$a0 |
|
| - | 266 | fpu_ct_restore 3,$a0 |
|
| - | 267 | fpu_ct_restore 4,$a0 |
|
| - | 268 | fpu_ct_restore 5,$a0 |
|
| - | 269 | fpu_ct_restore 6,$a0 |
|
| - | 270 | fpu_ct_restore 7,$a0 |
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| - | 271 | fpu_ct_restore 8,$a0 |
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| - | 272 | fpu_ct_restore 9,$a0 |
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| - | 273 | fpu_ct_restore 10,$a0 |
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| - | 274 | fpu_ct_restore 11,$a0 |
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| - | 275 | fpu_ct_restore 12,$a0 |
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| - | 276 | fpu_ct_restore 13,$a0 |
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| - | 277 | fpu_ct_restore 14,$a0 |
|
| - | 278 | fpu_ct_restore 15,$a0 |
|
| - | 279 | fpu_ct_restore 16,$a0 |
|
| - | 280 | fpu_ct_restore 17,$a0 |
|
| - | 281 | fpu_ct_restore 18,$a0 |
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| - | 282 | fpu_ct_restore 19,$a0 |
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| - | 283 | fpu_ct_restore 20,$a0 |
|
| - | 284 | fpu_ct_restore 21,$a0 |
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| - | 285 | fpu_ct_restore 22,$a0 |
|
| - | 286 | fpu_ct_restore 23,$a0 |
|
| - | 287 | fpu_ct_restore 24,$a0 |
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| - | 288 | fpu_ct_restore 25,$a0 |
|
| - | 289 | fpu_ct_restore 26,$a0 |
|
| - | 290 | fpu_ct_restore 27,$a0 |
|
| - | 291 | fpu_ct_restore 28,$a0 |
|
| - | 292 | fpu_ct_restore 29,$a0 |
|
| - | 293 | fpu_ct_restore 30,$a0 |
|
| - | 294 | fpu_ct_restore 31,$a0 |
|
| - | 295 | #endif |
|
| - | 296 | j $ra |
|
| - | 297 | nop |
|
| - | 298 | ||
| 158 | # THIS IS USERSPACE CODE |
299 | # THIS IS USERSPACE CODE |
| 159 | .global utext |
300 | .global utext |
| 160 | utext: |
301 | utext: |
| 161 | j $31 |
302 | j $31 |
| 162 | nop |
303 | nop |
| 163 | utext_end: |
304 | utext_end: |
| 164 | 305 | ||
| 165 | .data |
306 | .data |
| 166 | .global utext_size |
307 | .global utext_size |
| 167 | utext_size: |
308 | utext_size: |
| 168 | .long utext_end-utext |
309 | .long utext_end-utext |
| 169 | 310 | ||
| 170 | 311 | ||
| 171 | 312 | ||