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| 1 | # |
1 | # |
| 2 | # Copyright (C) 2005 Jakub Jermar |
2 | # Copyright (C) 2005 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 | * This file contains kernel trap table. |
30 | * This file contains kernel trap table. |
| 31 | */ |
31 | */ |
| 32 | 32 | ||
| 33 | .register %g2, #scratch |
33 | .register %g2, #scratch |
| 34 | .register %g3, #scratch |
34 | .register %g3, #scratch |
| 35 | 35 | ||
| 36 | .text |
36 | .text |
| 37 | 37 | ||
| 38 | #include <arch/trap/trap_table.h> |
38 | #include <arch/trap/trap_table.h> |
| 39 | #include <arch/trap/regwin.h> |
39 | #include <arch/trap/regwin.h> |
| 40 | #include <arch/trap/interrupt.h> |
40 | #include <arch/trap/interrupt.h> |
| 41 | #include <arch/trap/exception.h> |
41 | #include <arch/trap/exception.h> |
| 42 | #include <arch/trap/syscall.h> |
42 | #include <arch/trap/syscall.h> |
| 43 | #include <arch/trap/mmu.h> |
43 | #include <arch/trap/mmu.h> |
| 44 | #include <arch/mm/mmu.h> |
44 | #include <arch/mm/mmu.h> |
| 45 | #include <arch/mm/page.h> |
45 | #include <arch/mm/page.h> |
| 46 | #include <arch/stack.h> |
46 | #include <arch/stack.h> |
| 47 | #include <arch/regdef.h> |
47 | #include <arch/regdef.h> |
| 48 | 48 | ||
| 49 | #define TABLE_SIZE TRAP_TABLE_SIZE |
49 | #define TABLE_SIZE TRAP_TABLE_SIZE |
| 50 | #define ENTRY_SIZE TRAP_TABLE_ENTRY_SIZE |
50 | #define ENTRY_SIZE TRAP_TABLE_ENTRY_SIZE |
| 51 | 51 | ||
| 52 | /* |
52 | /* |
| 53 | * Kernel trap table. |
53 | * Kernel trap table. |
| 54 | */ |
54 | */ |
| 55 | .align TABLE_SIZE |
55 | .align TABLE_SIZE |
| 56 | .global trap_table |
56 | .global trap_table |
| 57 | trap_table: |
57 | trap_table: |
| 58 | 58 | ||
| 59 | /* TT = 0x08, TL = 0, instruction_access_exception */ |
59 | /* TT = 0x08, TL = 0, instruction_access_exception */ |
| 60 | .org trap_table + TT_INSTRUCTION_ACCESS_EXCEPTION*ENTRY_SIZE |
60 | .org trap_table + TT_INSTRUCTION_ACCESS_EXCEPTION*ENTRY_SIZE |
| 61 | .global instruction_access_exception |
61 | .global instruction_access_exception |
| 62 | instruction_access_exception: |
62 | instruction_access_exception: |
| 63 | PREEMPTIBLE_HANDLER do_instruction_access_exc |
63 | PREEMPTIBLE_HANDLER do_instruction_access_exc |
| 64 | 64 | ||
| 65 | /* TT = 0x10, TL = 0, illegal_instruction */ |
65 | /* TT = 0x10, TL = 0, illegal_instruction */ |
| 66 | .org trap_table + TT_ILLEGAL_INSTRUCTION*ENTRY_SIZE |
66 | .org trap_table + TT_ILLEGAL_INSTRUCTION*ENTRY_SIZE |
| 67 | .global illegal_instruction |
67 | .global illegal_instruction |
| 68 | illegal_instruction: |
68 | illegal_instruction: |
| 69 | PREEMPTIBLE_HANDLER do_illegal_instruction |
69 | PREEMPTIBLE_HANDLER do_illegal_instruction |
| 70 | 70 | ||
| 71 | /* TT = 0x24, TL = 0, clean_window handler */ |
71 | /* TT = 0x24, TL = 0, clean_window handler */ |
| 72 | .org trap_table + TT_CLEAN_WINDOW*ENTRY_SIZE |
72 | .org trap_table + TT_CLEAN_WINDOW*ENTRY_SIZE |
| 73 | .global clean_window_handler |
73 | .global clean_window_handler |
| 74 | clean_window_handler: |
74 | clean_window_handler: |
| 75 | CLEAN_WINDOW_HANDLER |
75 | CLEAN_WINDOW_HANDLER |
| 76 | 76 | ||
| 77 | /* TT = 0x32, TL = 0, data_access_error */ |
77 | /* TT = 0x32, TL = 0, data_access_error */ |
| 78 | .org trap_table + TT_DATA_ACCESS_ERROR*ENTRY_SIZE |
78 | .org trap_table + TT_DATA_ACCESS_ERROR*ENTRY_SIZE |
| 79 | .global data_access_error |
79 | .global data_access_error |
| 80 | data_access_error: |
80 | data_access_error: |
| 81 | PREEMPTIBLE_HANDLER do_data_access_error |
81 | PREEMPTIBLE_HANDLER do_data_access_error |
| 82 | 82 | ||
| 83 | /* TT = 0x34, TL = 0, mem_address_not_aligned */ |
83 | /* TT = 0x34, TL = 0, mem_address_not_aligned */ |
| 84 | .org trap_table + TT_MEM_ADDRESS_NOT_ALIGNED*ENTRY_SIZE |
84 | .org trap_table + TT_MEM_ADDRESS_NOT_ALIGNED*ENTRY_SIZE |
| 85 | .global mem_address_not_aligned |
85 | .global mem_address_not_aligned |
| 86 | mem_address_not_aligned: |
86 | mem_address_not_aligned: |
| 87 | PREEMPTIBLE_HANDLER do_mem_address_not_aligned |
87 | PREEMPTIBLE_HANDLER do_mem_address_not_aligned |
| 88 | 88 | ||
| 89 | /* TT = 0x41, TL = 0, interrupt_level_1 handler */ |
89 | /* TT = 0x41, TL = 0, interrupt_level_1 handler */ |
| 90 | .org trap_table + TT_INTERRUPT_LEVEL_1*ENTRY_SIZE |
90 | .org trap_table + TT_INTERRUPT_LEVEL_1*ENTRY_SIZE |
| 91 | .global interrupt_level_1_handler |
91 | .global interrupt_level_1_handler |
| 92 | interrupt_level_1_handler: |
92 | interrupt_level_1_handler: |
| 93 | INTERRUPT_LEVEL_N_HANDLER 1 |
93 | INTERRUPT_LEVEL_N_HANDLER 1 |
| 94 | 94 | ||
| 95 | /* TT = 0x42, TL = 0, interrupt_level_2 handler */ |
95 | /* TT = 0x42, TL = 0, interrupt_level_2 handler */ |
| 96 | .org trap_table + TT_INTERRUPT_LEVEL_2*ENTRY_SIZE |
96 | .org trap_table + TT_INTERRUPT_LEVEL_2*ENTRY_SIZE |
| 97 | .global interrupt_level_2_handler |
97 | .global interrupt_level_2_handler |
| 98 | interrupt_level_2_handler: |
98 | interrupt_level_2_handler: |
| 99 | INTERRUPT_LEVEL_N_HANDLER 2 |
99 | INTERRUPT_LEVEL_N_HANDLER 2 |
| 100 | 100 | ||
| 101 | /* TT = 0x43, TL = 0, interrupt_level_3 handler */ |
101 | /* TT = 0x43, TL = 0, interrupt_level_3 handler */ |
| 102 | .org trap_table + TT_INTERRUPT_LEVEL_3*ENTRY_SIZE |
102 | .org trap_table + TT_INTERRUPT_LEVEL_3*ENTRY_SIZE |
| 103 | .global interrupt_level_3_handler |
103 | .global interrupt_level_3_handler |
| 104 | interrupt_level_3_handler: |
104 | interrupt_level_3_handler: |
| 105 | INTERRUPT_LEVEL_N_HANDLER 3 |
105 | INTERRUPT_LEVEL_N_HANDLER 3 |
| 106 | 106 | ||
| 107 | /* TT = 0x44, TL = 0, interrupt_level_4 handler */ |
107 | /* TT = 0x44, TL = 0, interrupt_level_4 handler */ |
| 108 | .org trap_table + TT_INTERRUPT_LEVEL_4*ENTRY_SIZE |
108 | .org trap_table + TT_INTERRUPT_LEVEL_4*ENTRY_SIZE |
| 109 | .global interrupt_level_4_handler |
109 | .global interrupt_level_4_handler |
| 110 | interrupt_level_4_handler: |
110 | interrupt_level_4_handler: |
| 111 | INTERRUPT_LEVEL_N_HANDLER 4 |
111 | INTERRUPT_LEVEL_N_HANDLER 4 |
| 112 | 112 | ||
| 113 | /* TT = 0x45, TL = 0, interrupt_level_5 handler */ |
113 | /* TT = 0x45, TL = 0, interrupt_level_5 handler */ |
| 114 | .org trap_table + TT_INTERRUPT_LEVEL_5*ENTRY_SIZE |
114 | .org trap_table + TT_INTERRUPT_LEVEL_5*ENTRY_SIZE |
| 115 | .global interrupt_level_5_handler |
115 | .global interrupt_level_5_handler |
| 116 | interrupt_level_5_handler: |
116 | interrupt_level_5_handler: |
| 117 | INTERRUPT_LEVEL_N_HANDLER 5 |
117 | INTERRUPT_LEVEL_N_HANDLER 5 |
| 118 | 118 | ||
| 119 | /* TT = 0x46, TL = 0, interrupt_level_6 handler */ |
119 | /* TT = 0x46, TL = 0, interrupt_level_6 handler */ |
| 120 | .org trap_table + TT_INTERRUPT_LEVEL_6*ENTRY_SIZE |
120 | .org trap_table + TT_INTERRUPT_LEVEL_6*ENTRY_SIZE |
| 121 | .global interrupt_level_6_handler |
121 | .global interrupt_level_6_handler |
| 122 | interrupt_level_6_handler: |
122 | interrupt_level_6_handler: |
| 123 | INTERRUPT_LEVEL_N_HANDLER 6 |
123 | INTERRUPT_LEVEL_N_HANDLER 6 |
| 124 | 124 | ||
| 125 | /* TT = 0x47, TL = 0, interrupt_level_7 handler */ |
125 | /* TT = 0x47, TL = 0, interrupt_level_7 handler */ |
| 126 | .org trap_table + TT_INTERRUPT_LEVEL_7*ENTRY_SIZE |
126 | .org trap_table + TT_INTERRUPT_LEVEL_7*ENTRY_SIZE |
| 127 | .global interrupt_level_7_handler |
127 | .global interrupt_level_7_handler |
| 128 | interrupt_level_7_handler: |
128 | interrupt_level_7_handler: |
| 129 | INTERRUPT_LEVEL_N_HANDLER 7 |
129 | INTERRUPT_LEVEL_N_HANDLER 7 |
| 130 | 130 | ||
| 131 | /* TT = 0x48, TL = 0, interrupt_level_8 handler */ |
131 | /* TT = 0x48, TL = 0, interrupt_level_8 handler */ |
| 132 | .org trap_table + TT_INTERRUPT_LEVEL_8*ENTRY_SIZE |
132 | .org trap_table + TT_INTERRUPT_LEVEL_8*ENTRY_SIZE |
| 133 | .global interrupt_level_8_handler |
133 | .global interrupt_level_8_handler |
| 134 | interrupt_level_8_handler: |
134 | interrupt_level_8_handler: |
| 135 | INTERRUPT_LEVEL_N_HANDLER 8 |
135 | INTERRUPT_LEVEL_N_HANDLER 8 |
| 136 | 136 | ||
| 137 | /* TT = 0x49, TL = 0, interrupt_level_9 handler */ |
137 | /* TT = 0x49, TL = 0, interrupt_level_9 handler */ |
| 138 | .org trap_table + TT_INTERRUPT_LEVEL_9*ENTRY_SIZE |
138 | .org trap_table + TT_INTERRUPT_LEVEL_9*ENTRY_SIZE |
| 139 | .global interrupt_level_9_handler |
139 | .global interrupt_level_9_handler |
| 140 | interrupt_level_9_handler: |
140 | interrupt_level_9_handler: |
| 141 | INTERRUPT_LEVEL_N_HANDLER 9 |
141 | INTERRUPT_LEVEL_N_HANDLER 9 |
| 142 | 142 | ||
| 143 | /* TT = 0x4a, TL = 0, interrupt_level_10 handler */ |
143 | /* TT = 0x4a, TL = 0, interrupt_level_10 handler */ |
| 144 | .org trap_table + TT_INTERRUPT_LEVEL_10*ENTRY_SIZE |
144 | .org trap_table + TT_INTERRUPT_LEVEL_10*ENTRY_SIZE |
| 145 | .global interrupt_level_10_handler |
145 | .global interrupt_level_10_handler |
| 146 | interrupt_level_10_handler: |
146 | interrupt_level_10_handler: |
| 147 | INTERRUPT_LEVEL_N_HANDLER 10 |
147 | INTERRUPT_LEVEL_N_HANDLER 10 |
| 148 | 148 | ||
| 149 | /* TT = 0x4b, TL = 0, interrupt_level_11 handler */ |
149 | /* TT = 0x4b, TL = 0, interrupt_level_11 handler */ |
| 150 | .org trap_table + TT_INTERRUPT_LEVEL_11*ENTRY_SIZE |
150 | .org trap_table + TT_INTERRUPT_LEVEL_11*ENTRY_SIZE |
| 151 | .global interrupt_level_11_handler |
151 | .global interrupt_level_11_handler |
| 152 | interrupt_level_11_handler: |
152 | interrupt_level_11_handler: |
| 153 | INTERRUPT_LEVEL_N_HANDLER 11 |
153 | INTERRUPT_LEVEL_N_HANDLER 11 |
| 154 | 154 | ||
| 155 | /* TT = 0x4c, TL = 0, interrupt_level_12 handler */ |
155 | /* TT = 0x4c, TL = 0, interrupt_level_12 handler */ |
| 156 | .org trap_table + TT_INTERRUPT_LEVEL_12*ENTRY_SIZE |
156 | .org trap_table + TT_INTERRUPT_LEVEL_12*ENTRY_SIZE |
| 157 | .global interrupt_level_12_handler |
157 | .global interrupt_level_12_handler |
| 158 | interrupt_level_12_handler: |
158 | interrupt_level_12_handler: |
| 159 | INTERRUPT_LEVEL_N_HANDLER 12 |
159 | INTERRUPT_LEVEL_N_HANDLER 12 |
| 160 | 160 | ||
| 161 | /* TT = 0x4d, TL = 0, interrupt_level_13 handler */ |
161 | /* TT = 0x4d, TL = 0, interrupt_level_13 handler */ |
| 162 | .org trap_table + TT_INTERRUPT_LEVEL_13*ENTRY_SIZE |
162 | .org trap_table + TT_INTERRUPT_LEVEL_13*ENTRY_SIZE |
| 163 | .global interrupt_level_13_handler |
163 | .global interrupt_level_13_handler |
| 164 | interrupt_level_13_handler: |
164 | interrupt_level_13_handler: |
| 165 | INTERRUPT_LEVEL_N_HANDLER 13 |
165 | INTERRUPT_LEVEL_N_HANDLER 13 |
| 166 | 166 | ||
| 167 | /* TT = 0x4e, TL = 0, interrupt_level_14 handler */ |
167 | /* TT = 0x4e, TL = 0, interrupt_level_14 handler */ |
| 168 | .org trap_table + TT_INTERRUPT_LEVEL_14*ENTRY_SIZE |
168 | .org trap_table + TT_INTERRUPT_LEVEL_14*ENTRY_SIZE |
| 169 | .global interrupt_level_14_handler |
169 | .global interrupt_level_14_handler |
| 170 | interrupt_level_14_handler: |
170 | interrupt_level_14_handler: |
| 171 | INTERRUPT_LEVEL_N_HANDLER 14 |
171 | INTERRUPT_LEVEL_N_HANDLER 14 |
| 172 | 172 | ||
| 173 | /* TT = 0x4f, TL = 0, interrupt_level_15 handler */ |
173 | /* TT = 0x4f, TL = 0, interrupt_level_15 handler */ |
| 174 | .org trap_table + TT_INTERRUPT_LEVEL_15*ENTRY_SIZE |
174 | .org trap_table + TT_INTERRUPT_LEVEL_15*ENTRY_SIZE |
| 175 | .global interrupt_level_15_handler |
175 | .global interrupt_level_15_handler |
| 176 | interrupt_level_15_handler: |
176 | interrupt_level_15_handler: |
| 177 | INTERRUPT_LEVEL_N_HANDLER 15 |
177 | INTERRUPT_LEVEL_N_HANDLER 15 |
| 178 | 178 | ||
| 179 | /* TT = 0x60, TL = 0, interrupt_vector_trap handler */ |
179 | /* TT = 0x60, TL = 0, interrupt_vector_trap handler */ |
| 180 | .org trap_table + TT_INTERRUPT_VECTOR_TRAP*ENTRY_SIZE |
180 | .org trap_table + TT_INTERRUPT_VECTOR_TRAP*ENTRY_SIZE |
| 181 | .global interrupt_vector_trap_handler |
181 | .global interrupt_vector_trap_handler |
| 182 | interrupt_vector_trap_handler: |
182 | interrupt_vector_trap_handler: |
| 183 | INTERRUPT_VECTOR_TRAP_HANDLER |
183 | INTERRUPT_VECTOR_TRAP_HANDLER |
| 184 | 184 | ||
| 185 | /* TT = 0x64, TL = 0, fast_instruction_access_MMU_miss */ |
185 | /* TT = 0x64, TL = 0, fast_instruction_access_MMU_miss */ |
| 186 | .org trap_table + TT_FAST_INSTRUCTION_ACCESS_MMU_MISS*ENTRY_SIZE |
186 | .org trap_table + TT_FAST_INSTRUCTION_ACCESS_MMU_MISS*ENTRY_SIZE |
| 187 | .global fast_instruction_access_mmu_miss_handler |
187 | .global fast_instruction_access_mmu_miss_handler |
| 188 | fast_instruction_access_mmu_miss_handler: |
188 | fast_instruction_access_mmu_miss_handler: |
| 189 | FAST_INSTRUCTION_ACCESS_MMU_MISS_HANDLER |
189 | FAST_INSTRUCTION_ACCESS_MMU_MISS_HANDLER |
| 190 | 190 | ||
| 191 | /* TT = 0x68, TL = 0, fast_data_access_MMU_miss */ |
191 | /* TT = 0x68, TL = 0, fast_data_access_MMU_miss */ |
| 192 | .org trap_table + TT_FAST_DATA_ACCESS_MMU_MISS*ENTRY_SIZE |
192 | .org trap_table + TT_FAST_DATA_ACCESS_MMU_MISS*ENTRY_SIZE |
| 193 | .global fast_data_access_mmu_miss_handler |
193 | .global fast_data_access_mmu_miss_handler |
| 194 | fast_data_access_mmu_miss_handler: |
194 | fast_data_access_mmu_miss_handler: |
| 195 | FAST_DATA_ACCESS_MMU_MISS_HANDLER |
195 | FAST_DATA_ACCESS_MMU_MISS_HANDLER |
| 196 | 196 | ||
| 197 | /* TT = 0x6c, TL = 0, fast_data_access_protection */ |
197 | /* TT = 0x6c, TL = 0, fast_data_access_protection */ |
| 198 | .org trap_table + TT_FAST_DATA_ACCESS_PROTECTION*ENTRY_SIZE |
198 | .org trap_table + TT_FAST_DATA_ACCESS_PROTECTION*ENTRY_SIZE |
| 199 | .global fast_data_access_protection_handler |
199 | .global fast_data_access_protection_handler |
| 200 | fast_data_access_protection_handler: |
200 | fast_data_access_protection_handler: |
| 201 | FAST_DATA_ACCESS_PROTECTION_HANDLER |
201 | FAST_DATA_ACCESS_PROTECTION_HANDLER |
| 202 | 202 | ||
| 203 | /* TT = 0x80, TL = 0, spill_0_normal handler */ |
203 | /* TT = 0x80, TL = 0, spill_0_normal handler */ |
| 204 | .org trap_table + TT_SPILL_0_NORMAL*ENTRY_SIZE |
204 | .org trap_table + TT_SPILL_0_NORMAL*ENTRY_SIZE |
| 205 | .global spill_0_normal |
205 | .global spill_0_normal |
| 206 | spill_0_normal: |
206 | spill_0_normal: |
| 207 | SPILL_NORMAL_HANDLER_KERNEL |
207 | SPILL_NORMAL_HANDLER_KERNEL |
| 208 | 208 | ||
| 209 | /* TT = 0x84, TL = 0, spill_1_normal handler */ |
209 | /* TT = 0x84, TL = 0, spill_1_normal handler */ |
| 210 | .org trap_table + TT_SPILL_1_NORMAL*ENTRY_SIZE |
210 | .org trap_table + TT_SPILL_1_NORMAL*ENTRY_SIZE |
| 211 | .global spill_1_normal |
211 | .global spill_1_normal |
| 212 | spill_1_normal: |
212 | spill_1_normal: |
| 213 | SPILL_NORMAL_HANDLER_USERSPACE |
213 | SPILL_NORMAL_HANDLER_USERSPACE |
| 214 | 214 | ||
| 215 | /* TT = 0x88, TL = 0, spill_2_normal handler */ |
215 | /* TT = 0x88, TL = 0, spill_2_normal handler */ |
| 216 | .org trap_table + TT_SPILL_2_NORMAL*ENTRY_SIZE |
216 | .org trap_table + TT_SPILL_2_NORMAL*ENTRY_SIZE |
| 217 | .global spill_2_normal |
217 | .global spill_2_normal |
| 218 | spill_2_normal: |
218 | spill_2_normal: |
| 219 | SPILL_TO_USPACE_WINDOW_BUFFER |
219 | SPILL_TO_USPACE_WINDOW_BUFFER |
| 220 | 220 | ||
| - | 221 | /* TT = 0xa0, TL = 0, spill_0_other handler */ |
|
| - | 222 | .org trap_table + TT_SPILL_0_OTHER*ENTRY_SIZE |
|
| - | 223 | .global spill_0_other |
|
| - | 224 | spill_0_other: |
|
| - | 225 | SPILL_TO_USPACE_WINDOW_BUFFER |
|
| - | 226 | ||
| 221 | /* TT = 0xc0, TL = 0, fill_0_normal handler */ |
227 | /* TT = 0xc0, TL = 0, fill_0_normal handler */ |
| 222 | .org trap_table + TT_FILL_0_NORMAL*ENTRY_SIZE |
228 | .org trap_table + TT_FILL_0_NORMAL*ENTRY_SIZE |
| 223 | .global fill_0_normal |
229 | .global fill_0_normal |
| 224 | fill_0_normal: |
230 | fill_0_normal: |
| 225 | FILL_NORMAL_HANDLER_KERNEL |
231 | FILL_NORMAL_HANDLER_KERNEL |
| 226 | 232 | ||
| 227 | /* TT = 0xc4, TL = 0, fill_1_normal handler */ |
233 | /* TT = 0xc4, TL = 0, fill_1_normal handler */ |
| 228 | .org trap_table + TT_FILL_1_NORMAL*ENTRY_SIZE |
234 | .org trap_table + TT_FILL_1_NORMAL*ENTRY_SIZE |
| 229 | .global fill_1_normal |
235 | .global fill_1_normal |
| 230 | fill_1_normal: |
236 | fill_1_normal: |
| 231 | FILL_NORMAL_HANDLER_USERSPACE |
237 | FILL_NORMAL_HANDLER_USERSPACE |
| 232 | 238 | ||
| 233 | /* TT = 0x100, TL = 0, trap_instruction_0 */ |
239 | /* TT = 0x100, TL = 0, trap_instruction_0 */ |
| 234 | .org trap_table + TT_TRAP_INSTRUCTION(0)*ENTRY_SIZE |
240 | .org trap_table + TT_TRAP_INSTRUCTION(0)*ENTRY_SIZE |
| 235 | .global trap_instruction_0 |
241 | .global trap_instruction_0 |
| 236 | trap_instruction_0: |
242 | trap_instruction_0: |
| 237 | TRAP_INSTRUCTION 0 |
243 | TRAP_INSTRUCTION 0 |
| 238 | 244 | ||
| 239 | /* TT = 0x101, TL = 0, trap_instruction_1 */ |
245 | /* TT = 0x101, TL = 0, trap_instruction_1 */ |
| 240 | .org trap_table + TT_TRAP_INSTRUCTION(1)*ENTRY_SIZE |
246 | .org trap_table + TT_TRAP_INSTRUCTION(1)*ENTRY_SIZE |
| 241 | .global trap_instruction_1 |
247 | .global trap_instruction_1 |
| 242 | trap_instruction_1: |
248 | trap_instruction_1: |
| 243 | TRAP_INSTRUCTION 1 |
249 | TRAP_INSTRUCTION 1 |
| 244 | 250 | ||
| 245 | /* TT = 0x102, TL = 0, trap_instruction_2 */ |
251 | /* TT = 0x102, TL = 0, trap_instruction_2 */ |
| 246 | .org trap_table + TT_TRAP_INSTRUCTION(2)*ENTRY_SIZE |
252 | .org trap_table + TT_TRAP_INSTRUCTION(2)*ENTRY_SIZE |
| 247 | .global trap_instruction_2 |
253 | .global trap_instruction_2 |
| 248 | trap_instruction_2: |
254 | trap_instruction_2: |
| 249 | TRAP_INSTRUCTION 2 |
255 | TRAP_INSTRUCTION 2 |
| 250 | 256 | ||
| 251 | /* TT = 0x103, TL = 0, trap_instruction_3 */ |
257 | /* TT = 0x103, TL = 0, trap_instruction_3 */ |
| 252 | .org trap_table + TT_TRAP_INSTRUCTION(3)*ENTRY_SIZE |
258 | .org trap_table + TT_TRAP_INSTRUCTION(3)*ENTRY_SIZE |
| 253 | .global trap_instruction_3 |
259 | .global trap_instruction_3 |
| 254 | trap_instruction_3: |
260 | trap_instruction_3: |
| 255 | TRAP_INSTRUCTION 3 |
261 | TRAP_INSTRUCTION 3 |
| 256 | 262 | ||
| 257 | /* TT = 0x104, TL = 0, trap_instruction_4 */ |
263 | /* TT = 0x104, TL = 0, trap_instruction_4 */ |
| 258 | .org trap_table + TT_TRAP_INSTRUCTION(4)*ENTRY_SIZE |
264 | .org trap_table + TT_TRAP_INSTRUCTION(4)*ENTRY_SIZE |
| 259 | .global trap_instruction_4 |
265 | .global trap_instruction_4 |
| 260 | trap_instruction_4: |
266 | trap_instruction_4: |
| 261 | TRAP_INSTRUCTION 4 |
267 | TRAP_INSTRUCTION 4 |
| 262 | 268 | ||
| 263 | /* TT = 0x105, TL = 0, trap_instruction_5 */ |
269 | /* TT = 0x105, TL = 0, trap_instruction_5 */ |
| 264 | .org trap_table + TT_TRAP_INSTRUCTION(5)*ENTRY_SIZE |
270 | .org trap_table + TT_TRAP_INSTRUCTION(5)*ENTRY_SIZE |
| 265 | .global trap_instruction_5 |
271 | .global trap_instruction_5 |
| 266 | trap_instruction_5: |
272 | trap_instruction_5: |
| 267 | TRAP_INSTRUCTION 5 |
273 | TRAP_INSTRUCTION 5 |
| 268 | 274 | ||
| 269 | /* TT = 0x106, TL = 0, trap_instruction_6 */ |
275 | /* TT = 0x106, TL = 0, trap_instruction_6 */ |
| 270 | .org trap_table + TT_TRAP_INSTRUCTION(6)*ENTRY_SIZE |
276 | .org trap_table + TT_TRAP_INSTRUCTION(6)*ENTRY_SIZE |
| 271 | .global trap_instruction_6 |
277 | .global trap_instruction_6 |
| 272 | trap_instruction_6: |
278 | trap_instruction_6: |
| 273 | TRAP_INSTRUCTION 6 |
279 | TRAP_INSTRUCTION 6 |
| 274 | 280 | ||
| 275 | /* TT = 0x107, TL = 0, trap_instruction_7 */ |
281 | /* TT = 0x107, TL = 0, trap_instruction_7 */ |
| 276 | .org trap_table + TT_TRAP_INSTRUCTION(7)*ENTRY_SIZE |
282 | .org trap_table + TT_TRAP_INSTRUCTION(7)*ENTRY_SIZE |
| 277 | .global trap_instruction_7 |
283 | .global trap_instruction_7 |
| 278 | trap_instruction_7: |
284 | trap_instruction_7: |
| 279 | TRAP_INSTRUCTION 7 |
285 | TRAP_INSTRUCTION 7 |
| 280 | 286 | ||
| 281 | /* TT = 0x108, TL = 0, trap_instruction_8 */ |
287 | /* TT = 0x108, TL = 0, trap_instruction_8 */ |
| 282 | .org trap_table + TT_TRAP_INSTRUCTION(8)*ENTRY_SIZE |
288 | .org trap_table + TT_TRAP_INSTRUCTION(8)*ENTRY_SIZE |
| 283 | .global trap_instruction_8 |
289 | .global trap_instruction_8 |
| 284 | trap_instruction_8: |
290 | trap_instruction_8: |
| 285 | TRAP_INSTRUCTION 8 |
291 | TRAP_INSTRUCTION 8 |
| 286 | 292 | ||
| 287 | /* TT = 0x109, TL = 0, trap_instruction_9 */ |
293 | /* TT = 0x109, TL = 0, trap_instruction_9 */ |
| 288 | .org trap_table + TT_TRAP_INSTRUCTION(9)*ENTRY_SIZE |
294 | .org trap_table + TT_TRAP_INSTRUCTION(9)*ENTRY_SIZE |
| 289 | .global trap_instruction_9 |
295 | .global trap_instruction_9 |
| 290 | trap_instruction_9: |
296 | trap_instruction_9: |
| 291 | TRAP_INSTRUCTION 9 |
297 | TRAP_INSTRUCTION 9 |
| 292 | 298 | ||
| 293 | /* TT = 0x10a, TL = 0, trap_instruction_10 */ |
299 | /* TT = 0x10a, TL = 0, trap_instruction_10 */ |
| 294 | .org trap_table + TT_TRAP_INSTRUCTION(10)*ENTRY_SIZE |
300 | .org trap_table + TT_TRAP_INSTRUCTION(10)*ENTRY_SIZE |
| 295 | .global trap_instruction_10 |
301 | .global trap_instruction_10 |
| 296 | trap_instruction_10: |
302 | trap_instruction_10: |
| 297 | TRAP_INSTRUCTION 10 |
303 | TRAP_INSTRUCTION 10 |
| 298 | 304 | ||
| 299 | /* TT = 0x10b, TL = 0, trap_instruction_11 */ |
305 | /* TT = 0x10b, TL = 0, trap_instruction_11 */ |
| 300 | .org trap_table + TT_TRAP_INSTRUCTION(11)*ENTRY_SIZE |
306 | .org trap_table + TT_TRAP_INSTRUCTION(11)*ENTRY_SIZE |
| 301 | .global trap_instruction_11 |
307 | .global trap_instruction_11 |
| 302 | trap_instruction_11: |
308 | trap_instruction_11: |
| 303 | TRAP_INSTRUCTION 11 |
309 | TRAP_INSTRUCTION 11 |
| 304 | 310 | ||
| 305 | /* TT = 0x10c, TL = 0, trap_instruction_12 */ |
311 | /* TT = 0x10c, TL = 0, trap_instruction_12 */ |
| 306 | .org trap_table + TT_TRAP_INSTRUCTION(12)*ENTRY_SIZE |
312 | .org trap_table + TT_TRAP_INSTRUCTION(12)*ENTRY_SIZE |
| 307 | .global trap_instruction_12 |
313 | .global trap_instruction_12 |
| 308 | trap_instruction_12: |
314 | trap_instruction_12: |
| 309 | TRAP_INSTRUCTION 12 |
315 | TRAP_INSTRUCTION 12 |
| 310 | 316 | ||
| 311 | /* TT = 0x10d, TL = 0, trap_instruction_13 */ |
317 | /* TT = 0x10d, TL = 0, trap_instruction_13 */ |
| 312 | .org trap_table + TT_TRAP_INSTRUCTION(13)*ENTRY_SIZE |
318 | .org trap_table + TT_TRAP_INSTRUCTION(13)*ENTRY_SIZE |
| 313 | .global trap_instruction_13 |
319 | .global trap_instruction_13 |
| 314 | trap_instruction_13: |
320 | trap_instruction_13: |
| 315 | TRAP_INSTRUCTION 13 |
321 | TRAP_INSTRUCTION 13 |
| 316 | 322 | ||
| 317 | /* TT = 0x10e, TL = 0, trap_instruction_14 */ |
323 | /* TT = 0x10e, TL = 0, trap_instruction_14 */ |
| 318 | .org trap_table + TT_TRAP_INSTRUCTION(14)*ENTRY_SIZE |
324 | .org trap_table + TT_TRAP_INSTRUCTION(14)*ENTRY_SIZE |
| 319 | .global trap_instruction_14 |
325 | .global trap_instruction_14 |
| 320 | trap_instruction_14: |
326 | trap_instruction_14: |
| 321 | TRAP_INSTRUCTION 14 |
327 | TRAP_INSTRUCTION 14 |
| 322 | 328 | ||
| 323 | /* TT = 0x10f, TL = 0, trap_instruction_15 */ |
329 | /* TT = 0x10f, TL = 0, trap_instruction_15 */ |
| 324 | .org trap_table + TT_TRAP_INSTRUCTION(15)*ENTRY_SIZE |
330 | .org trap_table + TT_TRAP_INSTRUCTION(15)*ENTRY_SIZE |
| 325 | .global trap_instruction_15 |
331 | .global trap_instruction_15 |
| 326 | trap_instruction_15: |
332 | trap_instruction_15: |
| 327 | TRAP_INSTRUCTION 15 |
333 | TRAP_INSTRUCTION 15 |
| 328 | 334 | ||
| 329 | /* TT = 0x110, TL = 0, trap_instruction_16 */ |
335 | /* TT = 0x110, TL = 0, trap_instruction_16 */ |
| 330 | .org trap_table + TT_TRAP_INSTRUCTION(16)*ENTRY_SIZE |
336 | .org trap_table + TT_TRAP_INSTRUCTION(16)*ENTRY_SIZE |
| 331 | .global trap_instruction_16 |
337 | .global trap_instruction_16 |
| 332 | trap_instruction_16: |
338 | trap_instruction_16: |
| 333 | TRAP_INSTRUCTION 16 |
339 | TRAP_INSTRUCTION 16 |
| 334 | 340 | ||
| 335 | /* TT = 0x111, TL = 0, trap_instruction_17 */ |
341 | /* TT = 0x111, TL = 0, trap_instruction_17 */ |
| 336 | .org trap_table + TT_TRAP_INSTRUCTION(17)*ENTRY_SIZE |
342 | .org trap_table + TT_TRAP_INSTRUCTION(17)*ENTRY_SIZE |
| 337 | .global trap_instruction_17 |
343 | .global trap_instruction_17 |
| 338 | trap_instruction_17: |
344 | trap_instruction_17: |
| 339 | TRAP_INSTRUCTION 17 |
345 | TRAP_INSTRUCTION 17 |
| 340 | 346 | ||
| 341 | /* TT = 0x112, TL = 0, trap_instruction_18 */ |
347 | /* TT = 0x112, TL = 0, trap_instruction_18 */ |
| 342 | .org trap_table + TT_TRAP_INSTRUCTION(18)*ENTRY_SIZE |
348 | .org trap_table + TT_TRAP_INSTRUCTION(18)*ENTRY_SIZE |
| 343 | .global trap_instruction_18 |
349 | .global trap_instruction_18 |
| 344 | trap_instruction_18: |
350 | trap_instruction_18: |
| 345 | TRAP_INSTRUCTION 18 |
351 | TRAP_INSTRUCTION 18 |
| 346 | 352 | ||
| 347 | /* TT = 0x113, TL = 0, trap_instruction_19 */ |
353 | /* TT = 0x113, TL = 0, trap_instruction_19 */ |
| 348 | .org trap_table + TT_TRAP_INSTRUCTION(19)*ENTRY_SIZE |
354 | .org trap_table + TT_TRAP_INSTRUCTION(19)*ENTRY_SIZE |
| 349 | .global trap_instruction_19 |
355 | .global trap_instruction_19 |
| 350 | trap_instruction_19: |
356 | trap_instruction_19: |
| 351 | TRAP_INSTRUCTION 19 |
357 | TRAP_INSTRUCTION 19 |
| 352 | 358 | ||
| 353 | /* TT = 0x114, TL = 0, trap_instruction_20 */ |
359 | /* TT = 0x114, TL = 0, trap_instruction_20 */ |
| 354 | .org trap_table + TT_TRAP_INSTRUCTION(20)*ENTRY_SIZE |
360 | .org trap_table + TT_TRAP_INSTRUCTION(20)*ENTRY_SIZE |
| 355 | .global trap_instruction_20 |
361 | .global trap_instruction_20 |
| 356 | trap_instruction_20: |
362 | trap_instruction_20: |
| 357 | TRAP_INSTRUCTION 20 |
363 | TRAP_INSTRUCTION 20 |
| 358 | 364 | ||
| 359 | /* TT = 0x115, TL = 0, trap_instruction_21 */ |
365 | /* TT = 0x115, TL = 0, trap_instruction_21 */ |
| 360 | .org trap_table + TT_TRAP_INSTRUCTION(21)*ENTRY_SIZE |
366 | .org trap_table + TT_TRAP_INSTRUCTION(21)*ENTRY_SIZE |
| 361 | .global trap_instruction_21 |
367 | .global trap_instruction_21 |
| 362 | trap_instruction_21: |
368 | trap_instruction_21: |
| 363 | TRAP_INSTRUCTION 21 |
369 | TRAP_INSTRUCTION 21 |
| 364 | 370 | ||
| 365 | /* TT = 0x116, TL = 0, trap_instruction_22 */ |
371 | /* TT = 0x116, TL = 0, trap_instruction_22 */ |
| 366 | .org trap_table + TT_TRAP_INSTRUCTION(22)*ENTRY_SIZE |
372 | .org trap_table + TT_TRAP_INSTRUCTION(22)*ENTRY_SIZE |
| 367 | .global trap_instruction_22 |
373 | .global trap_instruction_22 |
| 368 | trap_instruction_22: |
374 | trap_instruction_22: |
| 369 | TRAP_INSTRUCTION 22 |
375 | TRAP_INSTRUCTION 22 |
| 370 | 376 | ||
| 371 | /* TT = 0x117, TL = 0, trap_instruction_23 */ |
377 | /* TT = 0x117, TL = 0, trap_instruction_23 */ |
| 372 | .org trap_table + TT_TRAP_INSTRUCTION(23)*ENTRY_SIZE |
378 | .org trap_table + TT_TRAP_INSTRUCTION(23)*ENTRY_SIZE |
| 373 | .global trap_instruction_23 |
379 | .global trap_instruction_23 |
| 374 | trap_instruction_23: |
380 | trap_instruction_23: |
| 375 | TRAP_INSTRUCTION 23 |
381 | TRAP_INSTRUCTION 23 |
| 376 | 382 | ||
| 377 | /* TT = 0x118, TL = 0, trap_instruction_24 */ |
383 | /* TT = 0x118, TL = 0, trap_instruction_24 */ |
| 378 | .org trap_table + TT_TRAP_INSTRUCTION(24)*ENTRY_SIZE |
384 | .org trap_table + TT_TRAP_INSTRUCTION(24)*ENTRY_SIZE |
| 379 | .global trap_instruction_24 |
385 | .global trap_instruction_24 |
| 380 | trap_instruction_24: |
386 | trap_instruction_24: |
| 381 | TRAP_INSTRUCTION 24 |
387 | TRAP_INSTRUCTION 24 |
| 382 | 388 | ||
| 383 | /* TT = 0x119, TL = 0, trap_instruction_25 */ |
389 | /* TT = 0x119, TL = 0, trap_instruction_25 */ |
| 384 | .org trap_table + TT_TRAP_INSTRUCTION(25)*ENTRY_SIZE |
390 | .org trap_table + TT_TRAP_INSTRUCTION(25)*ENTRY_SIZE |
| 385 | .global trap_instruction_25 |
391 | .global trap_instruction_25 |
| 386 | trap_instruction_25: |
392 | trap_instruction_25: |
| 387 | TRAP_INSTRUCTION 25 |
393 | TRAP_INSTRUCTION 25 |
| 388 | 394 | ||
| 389 | /* TT = 0x11a, TL = 0, trap_instruction_26 */ |
395 | /* TT = 0x11a, TL = 0, trap_instruction_26 */ |
| 390 | .org trap_table + TT_TRAP_INSTRUCTION(26)*ENTRY_SIZE |
396 | .org trap_table + TT_TRAP_INSTRUCTION(26)*ENTRY_SIZE |
| 391 | .global trap_instruction_26 |
397 | .global trap_instruction_26 |
| 392 | trap_instruction_26: |
398 | trap_instruction_26: |
| 393 | TRAP_INSTRUCTION 26 |
399 | TRAP_INSTRUCTION 26 |
| 394 | 400 | ||
| 395 | /* TT = 0x11b, TL = 0, trap_instruction_27 */ |
401 | /* TT = 0x11b, TL = 0, trap_instruction_27 */ |
| 396 | .org trap_table + TT_TRAP_INSTRUCTION(27)*ENTRY_SIZE |
402 | .org trap_table + TT_TRAP_INSTRUCTION(27)*ENTRY_SIZE |
| 397 | .global trap_instruction_27 |
403 | .global trap_instruction_27 |
| 398 | trap_instruction_27: |
404 | trap_instruction_27: |
| 399 | TRAP_INSTRUCTION 27 |
405 | TRAP_INSTRUCTION 27 |
| 400 | 406 | ||
| 401 | /* TT = 0x11c, TL = 0, trap_instruction_28 */ |
407 | /* TT = 0x11c, TL = 0, trap_instruction_28 */ |
| 402 | .org trap_table + TT_TRAP_INSTRUCTION(28)*ENTRY_SIZE |
408 | .org trap_table + TT_TRAP_INSTRUCTION(28)*ENTRY_SIZE |
| 403 | .global trap_instruction_28 |
409 | .global trap_instruction_28 |
| 404 | trap_instruction_28: |
410 | trap_instruction_28: |
| 405 | TRAP_INSTRUCTION 28 |
411 | TRAP_INSTRUCTION 28 |
| 406 | 412 | ||
| 407 | /* TT = 0x11d, TL = 0, trap_instruction_29 */ |
413 | /* TT = 0x11d, TL = 0, trap_instruction_29 */ |
| 408 | .org trap_table + TT_TRAP_INSTRUCTION(29)*ENTRY_SIZE |
414 | .org trap_table + TT_TRAP_INSTRUCTION(29)*ENTRY_SIZE |
| 409 | .global trap_instruction_29 |
415 | .global trap_instruction_29 |
| 410 | trap_instruction_29: |
416 | trap_instruction_29: |
| 411 | TRAP_INSTRUCTION 29 |
417 | TRAP_INSTRUCTION 29 |
| 412 | 418 | ||
| 413 | /* TT = 0x11e, TL = 0, trap_instruction_30 */ |
419 | /* TT = 0x11e, TL = 0, trap_instruction_30 */ |
| 414 | .org trap_table + TT_TRAP_INSTRUCTION(30)*ENTRY_SIZE |
420 | .org trap_table + TT_TRAP_INSTRUCTION(30)*ENTRY_SIZE |
| 415 | .global trap_instruction_30 |
421 | .global trap_instruction_30 |
| 416 | trap_instruction_30: |
422 | trap_instruction_30: |
| 417 | TRAP_INSTRUCTION 30 |
423 | TRAP_INSTRUCTION 30 |
| 418 | 424 | ||
| 419 | /* TT = 0x11f, TL = 0, trap_instruction_31 */ |
425 | /* TT = 0x11f, TL = 0, trap_instruction_31 */ |
| 420 | .org trap_table + TT_TRAP_INSTRUCTION(31)*ENTRY_SIZE |
426 | .org trap_table + TT_TRAP_INSTRUCTION(31)*ENTRY_SIZE |
| 421 | .global trap_instruction_31 |
427 | .global trap_instruction_31 |
| 422 | trap_instruction_31: |
428 | trap_instruction_31: |
| 423 | TRAP_INSTRUCTION 31 |
429 | TRAP_INSTRUCTION 31 |
| 424 | 430 | ||
| 425 | /* |
431 | /* |
| 426 | * Handlers for TL>0. |
432 | * Handlers for TL>0. |
| 427 | */ |
433 | */ |
| 428 | 434 | ||
| 429 | /* TT = 0x08, TL > 0, instruction_access_exception */ |
435 | /* TT = 0x08, TL > 0, instruction_access_exception */ |
| 430 | .org trap_table + (TT_INSTRUCTION_ACCESS_EXCEPTION+512)*ENTRY_SIZE |
436 | .org trap_table + (TT_INSTRUCTION_ACCESS_EXCEPTION+512)*ENTRY_SIZE |
| 431 | .global instruction_access_exception_high |
437 | .global instruction_access_exception_high |
| 432 | instruction_access_exception_high: |
438 | instruction_access_exception_high: |
| 433 | PREEMPTIBLE_HANDLER do_instruction_access_exc |
439 | PREEMPTIBLE_HANDLER do_instruction_access_exc |
| 434 | 440 | ||
| 435 | /* TT = 0x10, TL > 0, illegal_instruction */ |
441 | /* TT = 0x10, TL > 0, illegal_instruction */ |
| 436 | .org trap_table + (TT_ILLEGAL_INSTRUCTION+512)*ENTRY_SIZE |
442 | .org trap_table + (TT_ILLEGAL_INSTRUCTION+512)*ENTRY_SIZE |
| 437 | .global illegal_instruction_high |
443 | .global illegal_instruction_high |
| 438 | illegal_instruction_high: |
444 | illegal_instruction_high: |
| 439 | PREEMPTIBLE_HANDLER do_illegal_instruction |
445 | PREEMPTIBLE_HANDLER do_illegal_instruction |
| 440 | 446 | ||
| 441 | /* TT = 0x24, TL > 0, clean_window handler */ |
447 | /* TT = 0x24, TL > 0, clean_window handler */ |
| 442 | .org trap_table + (TT_CLEAN_WINDOW+512)*ENTRY_SIZE |
448 | .org trap_table + (TT_CLEAN_WINDOW+512)*ENTRY_SIZE |
| 443 | .global clean_window_handler_high |
449 | .global clean_window_handler_high |
| 444 | clean_window_handler_high: |
450 | clean_window_handler_high: |
| 445 | CLEAN_WINDOW_HANDLER |
451 | CLEAN_WINDOW_HANDLER |
| 446 | 452 | ||
| 447 | /* TT = 0x32, TL > 0, data_access_error */ |
453 | /* TT = 0x32, TL > 0, data_access_error */ |
| 448 | .org trap_table + (TT_DATA_ACCESS_ERROR+512)*ENTRY_SIZE |
454 | .org trap_table + (TT_DATA_ACCESS_ERROR+512)*ENTRY_SIZE |
| 449 | .global data_access_error_high |
455 | .global data_access_error_high |
| 450 | data_access_error_high: |
456 | data_access_error_high: |
| 451 | PREEMPTIBLE_HANDLER do_data_access_error |
457 | PREEMPTIBLE_HANDLER do_data_access_error |
| 452 | 458 | ||
| 453 | /* TT = 0x34, TL > 0, mem_address_not_aligned */ |
459 | /* TT = 0x34, TL > 0, mem_address_not_aligned */ |
| 454 | .org trap_table + (TT_MEM_ADDRESS_NOT_ALIGNED+512)*ENTRY_SIZE |
460 | .org trap_table + (TT_MEM_ADDRESS_NOT_ALIGNED+512)*ENTRY_SIZE |
| 455 | .global mem_address_not_aligned_high |
461 | .global mem_address_not_aligned_high |
| 456 | mem_address_not_aligned_high: |
462 | mem_address_not_aligned_high: |
| 457 | PREEMPTIBLE_HANDLER do_mem_address_not_aligned |
463 | PREEMPTIBLE_HANDLER do_mem_address_not_aligned |
| 458 | 464 | ||
| 459 | /* TT = 0x64, TL > 0, fast_instruction_access_MMU_miss */ |
465 | /* TT = 0x64, TL > 0, fast_instruction_access_MMU_miss */ |
| 460 | .org trap_table + (TT_FAST_INSTRUCTION_ACCESS_MMU_MISS+512)*ENTRY_SIZE |
466 | .org trap_table + (TT_FAST_INSTRUCTION_ACCESS_MMU_MISS+512)*ENTRY_SIZE |
| 461 | .global fast_instruction_access_mmu_miss_handler_high |
467 | .global fast_instruction_access_mmu_miss_handler_high |
| 462 | fast_instruction_access_mmu_miss_handler_high: |
468 | fast_instruction_access_mmu_miss_handler_high: |
| 463 | FAST_INSTRUCTION_ACCESS_MMU_MISS_HANDLER |
469 | FAST_INSTRUCTION_ACCESS_MMU_MISS_HANDLER |
| 464 | 470 | ||
| 465 | /* TT = 0x68, TL > 0, fast_data_access_MMU_miss */ |
471 | /* TT = 0x68, TL > 0, fast_data_access_MMU_miss */ |
| 466 | .org trap_table + (TT_FAST_DATA_ACCESS_MMU_MISS+512)*ENTRY_SIZE |
472 | .org trap_table + (TT_FAST_DATA_ACCESS_MMU_MISS+512)*ENTRY_SIZE |
| 467 | .global fast_data_access_mmu_miss_handler_high |
473 | .global fast_data_access_mmu_miss_handler_high |
| 468 | fast_data_access_mmu_miss_handler_high: |
474 | fast_data_access_mmu_miss_handler_high: |
| 469 | FAST_DATA_ACCESS_MMU_MISS_HANDLER |
475 | FAST_DATA_ACCESS_MMU_MISS_HANDLER |
| 470 | 476 | ||
| 471 | /* TT = 0x6c, TL > 0, fast_data_access_protection */ |
477 | /* TT = 0x6c, TL > 0, fast_data_access_protection */ |
| 472 | .org trap_table + (TT_FAST_DATA_ACCESS_PROTECTION+512)*ENTRY_SIZE |
478 | .org trap_table + (TT_FAST_DATA_ACCESS_PROTECTION+512)*ENTRY_SIZE |
| 473 | .global fast_data_access_protection_handler_high |
479 | .global fast_data_access_protection_handler_high |
| 474 | fast_data_access_protection_handler_high: |
480 | fast_data_access_protection_handler_high: |
| 475 | FAST_DATA_ACCESS_PROTECTION_HANDLER |
481 | FAST_DATA_ACCESS_PROTECTION_HANDLER |
| 476 | 482 | ||
| 477 | /* TT = 0x80, TL > 0, spill_0_normal handler */ |
483 | /* TT = 0x80, TL > 0, spill_0_normal handler */ |
| 478 | .org trap_table + (TT_SPILL_0_NORMAL+512)*ENTRY_SIZE |
484 | .org trap_table + (TT_SPILL_0_NORMAL+512)*ENTRY_SIZE |
| 479 | .global spill_0_normal_high |
485 | .global spill_0_normal_high |
| 480 | spill_0_normal_high: |
486 | spill_0_normal_high: |
| 481 | SPILL_NORMAL_HANDLER_KERNEL |
487 | SPILL_NORMAL_HANDLER_KERNEL |
| 482 | 488 | ||
| 483 | /* TT = 0x88, TL > 0, spill_2_normal handler */ |
489 | /* TT = 0x88, TL > 0, spill_2_normal handler */ |
| 484 | .org trap_table + (TT_SPILL_2_NORMAL+512)*ENTRY_SIZE |
490 | .org trap_table + (TT_SPILL_2_NORMAL+512)*ENTRY_SIZE |
| 485 | .global spill_2_normal_high |
491 | .global spill_2_normal_high |
| 486 | spill_2_normal_high: |
492 | spill_2_normal_high: |
| 487 | SPILL_TO_USPACE_WINDOW_BUFFER |
493 | SPILL_TO_USPACE_WINDOW_BUFFER |
| 488 | 494 | ||
| 489 | /* TT = 0xa0, TL > 0, spill_0_other handler */ |
495 | /* TT = 0xa0, TL > 0, spill_0_other handler */ |
| 490 | .org trap_table + (TT_SPILL_0_OTHER+512)*ENTRY_SIZE |
496 | .org trap_table + (TT_SPILL_0_OTHER+512)*ENTRY_SIZE |
| 491 | .global spill_0_other_high |
497 | .global spill_0_other_high |
| 492 | spill_0_other_high: |
498 | spill_0_other_high: |
| 493 | SPILL_TO_USPACE_WINDOW_BUFFER |
499 | SPILL_TO_USPACE_WINDOW_BUFFER |
| 494 | 500 | ||
| 495 | /* TT = 0xc0, TL > 0, fill_0_normal handler */ |
501 | /* TT = 0xc0, TL > 0, fill_0_normal handler */ |
| 496 | .org trap_table + (TT_FILL_0_NORMAL+512)*ENTRY_SIZE |
502 | .org trap_table + (TT_FILL_0_NORMAL+512)*ENTRY_SIZE |
| 497 | .global fill_0_normal_high |
503 | .global fill_0_normal_high |
| 498 | fill_0_normal_high: |
504 | fill_0_normal_high: |
| 499 | FILL_NORMAL_HANDLER_KERNEL |
505 | FILL_NORMAL_HANDLER_KERNEL |
| 500 | 506 | ||
| 501 | #define NOT(x) ((x) == 0) |
507 | #define NOT(x) ((x) == 0) |
| 502 | 508 | ||
| 503 | /* Preemptible trap handler for TL=1. |
509 | /* Preemptible trap handler for TL=1. |
| 504 | * |
510 | * |
| 505 | * This trap handler makes arrangements to make calling of scheduler() from |
511 | * This trap handler makes arrangements to make calling of scheduler() from |
| 506 | * within a trap context possible. It is called from several other trap |
512 | * within a trap context possible. It is called from several other trap |
| 507 | * handlers. |
513 | * handlers. |
| 508 | * |
514 | * |
| 509 | * This function can be entered either with interrupt globals or alternate globals. |
515 | * This function can be entered either with interrupt globals or alternate globals. |
| 510 | * Memory management trap handlers are obliged to switch to one of those global sets |
516 | * Memory management trap handlers are obliged to switch to one of those global sets |
| 511 | * prior to calling this function. Register window management functions are not |
517 | * prior to calling this function. Register window management functions are not |
| 512 | * allowed to modify the alternate global registers. |
518 | * allowed to modify the alternate global registers. |
| 513 | * |
519 | * |
| 514 | * Input registers: |
520 | * Input registers: |
| 515 | * %g1 Address of function to call. |
521 | * %g1 Address of function to call. |
| 516 | * %g2 First argument for the function. |
522 | * %g2 First argument for the function. |
| 517 | * %g6 Pre-set as kernel stack base if trap from userspace. |
523 | * %g6 Pre-set as kernel stack base if trap from userspace. |
| 518 | * %g7 Pre-set as address of the userspace window buffer. |
524 | * %g7 Pre-set as address of the userspace window buffer. |
| 519 | */ |
525 | */ |
| 520 | .macro PREEMPTIBLE_HANDLER_TEMPLATE is_syscall |
526 | .macro PREEMPTIBLE_HANDLER_TEMPLATE is_syscall |
| 521 | .if NOT(\is_syscall) |
527 | .if NOT(\is_syscall) |
| 522 | rdpr %tstate, %g3 |
528 | rdpr %tstate, %g3 |
| 523 | andcc %g3, TSTATE_PRIV_BIT, %g0 ! if this trap came from the privileged mode... |
529 | andcc %g3, TSTATE_PRIV_BIT, %g0 ! if this trap came from the privileged mode... |
| 524 | bnz 0f ! ...skip setting of kernel stack and primary context |
530 | bnz 0f ! ...skip setting of kernel stack and primary context |
| 525 | nop |
531 | nop |
| 526 | .endif |
532 | .endif |
| 527 | /* |
533 | /* |
| 528 | * Normal window spills will go to the userspace window buffer. |
534 | * Normal window spills will go to the userspace window buffer. |
| 529 | */ |
535 | */ |
| 530 | wrpr %g0, WSTATE_OTHER(0) | WSTATE_NORMAL(2), %wstate |
536 | wrpr %g0, WSTATE_OTHER(0) | WSTATE_NORMAL(2), %wstate |
| 531 | 537 | ||
| 532 | /* |
538 | /* |
| 533 | * Switch to kernel stack. The old stack is |
539 | * Switch to kernel stack. The old stack is |
| 534 | * automatically saved in the old window's %sp |
540 | * automatically saved in the old window's %sp |
| 535 | * and the new window's %fp. |
541 | * and the new window's %fp. |
| 536 | */ |
542 | */ |
| 537 | save %g6, -PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE, %sp |
543 | save %g6, -PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE, %sp |
| 538 | 544 | ||
| 539 | .if \is_syscall |
545 | .if \is_syscall |
| 540 | /* |
546 | /* |
| 541 | * Copy arguments for the syscall to the new window. |
547 | * Copy arguments for the syscall to the new window. |
| 542 | */ |
548 | */ |
| 543 | mov %i0, %o2 |
549 | mov %i0, %o2 |
| 544 | mov %i1, %o3 |
550 | mov %i1, %o3 |
| 545 | mov %i2, %o4 |
551 | mov %i2, %o4 |
| 546 | mov %i3, %o5 |
552 | mov %i3, %o5 |
| 547 | .endif |
553 | .endif |
| 548 | 554 | ||
| 549 | /* |
555 | /* |
| 550 | * Mark the CANSAVE windows as OTHER windows. |
556 | * Mark the CANRESTORE windows as OTHER windows. |
| 551 | * Set CLEANWIN to NWINDOW-1 so that clean_window traps do not occur. |
557 | * Set CLEANWIN to NWINDOW-1 so that clean_window traps do not occur. |
| 552 | */ |
558 | */ |
| 553 | rdpr %cansave, %l0 |
559 | rdpr %canrestore, %l0 |
| 554 | wrpr %l0, %otherwin |
560 | wrpr %l0, %otherwin |
| 555 | wrpr %g0, %cansave |
561 | wrpr %g0, %canrestore |
| 556 | wrpr %g0, NWINDOW - 1, %cleanwin |
562 | wrpr %g0, NWINDOW - 1, %cleanwin |
| 557 | 563 | ||
| 558 | /* |
564 | /* |
| 559 | * Switch to primary context 0. |
565 | * Switch to primary context 0. |
| 560 | */ |
566 | */ |
| 561 | mov VA_PRIMARY_CONTEXT_REG, %l0 |
567 | mov VA_PRIMARY_CONTEXT_REG, %l0 |
| 562 | stxa %g0, [%l0] ASI_DMMU |
568 | stxa %g0, [%l0] ASI_DMMU |
| 563 | rd %pc, %l0 |
569 | rd %pc, %l0 |
| 564 | flush %l0 |
570 | flush %l0 |
| 565 | 571 | ||
| 566 | .if NOT(\is_syscall) |
572 | .if NOT(\is_syscall) |
| 567 | ba 1f |
573 | ba 1f |
| 568 | nop |
574 | nop |
| 569 | 575 | ||
| 570 | 0: |
576 | 0: |
| 571 | save %sp, -PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE, %sp |
577 | save %sp, -PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE, %sp |
| 572 | 578 | ||
| 573 | /* |
579 | /* |
| 574 | * At this moment, we are using the kernel stack |
580 | * At this moment, we are using the kernel stack |
| 575 | * and have successfully allocated a register window. |
581 | * and have successfully allocated a register window. |
| 576 | */ |
582 | */ |
| 577 | 1: |
583 | 1: |
| 578 | .endif |
584 | .endif |
| 579 | /* |
585 | /* |
| 580 | * Other window spills will go to the userspace window buffer |
586 | * Other window spills will go to the userspace window buffer |
| 581 | * and normal spills will go to the kernel stack. |
587 | * and normal spills will go to the kernel stack. |
| 582 | */ |
588 | */ |
| 583 | wrpr %g0, WSTATE_OTHER(0) | WSTATE_NORMAL(0), %wstate |
589 | wrpr %g0, WSTATE_OTHER(0) | WSTATE_NORMAL(0), %wstate |
| 584 | 590 | ||
| 585 | /* |
591 | /* |
| 586 | * Copy arguments. |
592 | * Copy arguments. |
| 587 | */ |
593 | */ |
| 588 | mov %g1, %l0 |
594 | mov %g1, %l0 |
| 589 | mov %g2, %o0 |
595 | mov %g2, %o0 |
| 590 | 596 | ||
| 591 | /* |
597 | /* |
| 592 | * Save TSTATE, TPC and TNPC aside. |
598 | * Save TSTATE, TPC and TNPC aside. |
| 593 | */ |
599 | */ |
| 594 | rdpr %tstate, %g1 |
600 | rdpr %tstate, %g1 |
| 595 | rdpr %tpc, %g2 |
601 | rdpr %tpc, %g2 |
| 596 | rdpr %tnpc, %g3 |
602 | rdpr %tnpc, %g3 |
| 597 | 603 | ||
| 598 | /* |
604 | /* |
| 599 | * The following memory accesses will not fault |
605 | * The following memory accesses will not fault |
| 600 | * because special provisions are made to have |
606 | * because special provisions are made to have |
| 601 | * the kernel stack of THREAD locked in DTLB. |
607 | * the kernel stack of THREAD locked in DTLB. |
| 602 | */ |
608 | */ |
| 603 | stx %g1, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TSTATE] |
609 | stx %g1, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TSTATE] |
| 604 | stx %g2, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TPC] |
610 | stx %g2, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TPC] |
| 605 | stx %g3, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TNPC] |
611 | stx %g3, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TNPC] |
| 606 | 612 | ||
| 607 | wrpr %g0, 0, %tl |
613 | wrpr %g0, 0, %tl |
| 608 | wrpr %g0, PSTATE_PRIV_BIT, %pstate |
614 | wrpr %g0, PSTATE_PRIV_BIT, %pstate |
| 609 | SAVE_GLOBALS |
615 | SAVE_GLOBALS |
| 610 | 616 | ||
| 611 | /* |
617 | /* |
| 612 | * Call the higher-level handler and pass istate as second parameter. |
618 | * Call the higher-level handler and pass istate as second parameter. |
| 613 | */ |
619 | */ |
| 614 | call %l0 |
620 | call %l0 |
| 615 | add %sp, PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TNPC, %o1 |
621 | add %sp, PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TNPC, %o1 |
| 616 | 622 | ||
| 617 | .if \is_syscall |
623 | .if \is_syscall |
| 618 | /* |
624 | /* |
| 619 | * Copy the value returned by the syscall. |
625 | * Copy the value returned by the syscall. |
| 620 | */ |
626 | */ |
| 621 | mov %o0, %i0 |
627 | mov %o0, %i0 |
| 622 | .endif |
628 | .endif |
| 623 | 629 | ||
| 624 | RESTORE_GLOBALS |
630 | RESTORE_GLOBALS |
| 625 | wrpr %g0, PSTATE_AG_BIT | PSTATE_PRIV_BIT, %pstate |
631 | wrpr %g0, PSTATE_AG_BIT | PSTATE_PRIV_BIT, %pstate |
| 626 | wrpr %g0, 1, %tl |
632 | wrpr %g0, 1, %tl |
| 627 | 633 | ||
| 628 | /* |
634 | /* |
| 629 | * Read TSTATE, TPC and TNPC from saved copy. |
635 | * Read TSTATE, TPC and TNPC from saved copy. |
| 630 | */ |
636 | */ |
| 631 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TSTATE], %g1 |
637 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TSTATE], %g1 |
| 632 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TPC], %g2 |
638 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TPC], %g2 |
| 633 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TNPC], %g3 |
639 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TNPC], %g3 |
| 634 | 640 | ||
| 635 | /* |
641 | /* |
| 636 | * Restore TSTATE, TPC and TNPC from saved copies. |
642 | * Restore TSTATE, TPC and TNPC from saved copies. |
| 637 | */ |
643 | */ |
| 638 | wrpr %g1, 0, %tstate |
644 | wrpr %g1, 0, %tstate |
| 639 | wrpr %g2, 0, %tpc |
645 | wrpr %g2, 0, %tpc |
| 640 | wrpr %g3, 0, %tnpc |
646 | wrpr %g3, 0, %tnpc |
| 641 | 647 | ||
| 642 | /* |
648 | /* |
| 643 | * If OTHERWIN is zero, then all the userspace windows have been |
649 | * If OTHERWIN is zero, then all the userspace windows have been |
| 644 | * spilled to kernel memory (i.e. register window buffer). If |
650 | * spilled to kernel memory (i.e. register window buffer). Moreover, |
| - | 651 | * if the scheduler was called in the meantime, all valid windows |
|
| - | 652 | * belonging to other threads were spilled by context_restore(). |
|
| 645 | * OTHERWIN is non-zero, then some userspace windows are still |
653 | * If OTHERWIN is non-zero, then some userspace windows are still |
| 646 | * valid. Others might have been spilled. However, the CWP pointer |
654 | * valid. Others might have been spilled. However, the CWP pointer |
| 647 | * needs no fixing because the scheduler had not been called. |
655 | * needs no fixing because the scheduler had not been called. |
| 648 | */ |
656 | */ |
| 649 | rdpr %otherwin, %l0 |
657 | rdpr %otherwin, %l0 |
| 650 | brnz %l0, 0f |
658 | brnz %l0, 0f |
| 651 | nop |
659 | nop |
| 652 | 660 | ||
| 653 | /* |
661 | /* |
| 654 | * OTHERWIN == 0 |
662 | * OTHERWIN == 0 |
| 655 | */ |
663 | */ |
| 656 | 664 | ||
| 657 | /* |
665 | /* |
| 658 | * If TSTATE.CWP + 1 == CWP, then we still do not have to fix CWP. |
666 | * If TSTATE.CWP + 1 == CWP, then we still do not have to fix CWP. |
| 659 | */ |
667 | */ |
| 660 | and %g1, TSTATE_CWP_MASK, %l0 |
668 | and %g1, TSTATE_CWP_MASK, %l0 |
| 661 | inc %l0 |
669 | inc %l0 |
| 662 | and %l0, TSTATE_CWP_MASK, %l0 ! %l0 mod NWINDOW |
670 | and %l0, NWINDOW - 1, %l0 ! %l0 mod NWINDOW |
| 663 | rdpr %cwp, %l1 |
671 | rdpr %cwp, %l1 |
| 664 | cmp %l0, %l1 |
672 | cmp %l0, %l1 |
| 665 | bz 0f ! CWP is ok |
673 | bz 0f ! CWP is ok |
| 666 | nop |
674 | nop |
| 667 | 675 | ||
| 668 | /* |
676 | /* |
| 669 | * Fix CWP. |
677 | * Fix CWP. |
| 670 | * Just for reminder, the input registers in the current window |
678 | * In order to recapitulate, the input registers in the current |
| 671 | * are the output registers of the window to which we want to |
679 | * window are the output registers of the window to which we want |
| 672 | * restore. Because the fill trap fills only input and local |
680 | * to restore. Because the fill trap fills only input and local |
| 673 | * registers of a window, we need to preserve those output |
681 | * registers of a window, we need to preserve those output |
| 674 | * registers manually. |
682 | * registers manually. |
| 675 | */ |
683 | */ |
| 676 | flushw |
- | |
| 677 | mov %sp, %g2 |
684 | mov %sp, %g2 |
| 678 | stx %i0, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I0] |
685 | stx %i0, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I0] |
| 679 | stx %i1, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I1] |
686 | stx %i1, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I1] |
| 680 | stx %i2, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I2] |
687 | stx %i2, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I2] |
| 681 | stx %i3, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I3] |
688 | stx %i3, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I3] |
| 682 | stx %i4, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I4] |
689 | stx %i4, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I4] |
| 683 | stx %i5, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I5] |
690 | stx %i5, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I5] |
| 684 | stx %i6, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I6] |
691 | stx %i6, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I6] |
| 685 | stx %i7, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I7] |
692 | stx %i7, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I7] |
| 686 | wrpr %l0, 0, %cwp |
693 | wrpr %l0, 0, %cwp |
| 687 | mov %g2, %sp |
694 | mov %g2, %sp |
| 688 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I0], %i0 |
695 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I0], %i0 |
| 689 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I1], %i1 |
696 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I1], %i1 |
| 690 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I2], %i2 |
697 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I2], %i2 |
| 691 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I3], %i3 |
698 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I3], %i3 |
| 692 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I4], %i4 |
699 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I4], %i4 |
| 693 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I5], %i5 |
700 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I5], %i5 |
| 694 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I6], %i6 |
701 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I6], %i6 |
| 695 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I7], %i7 |
702 | ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_I7], %i7 |
| 696 | 703 | ||
| 697 | /* |
704 | /* |
| 698 | * OTHERWIN != 0 or fall-through from the OTHERWIN == 0 case. |
705 | * OTHERWIN != 0 or fall-through from the OTHERWIN == 0 case. |
| 699 | * The CWP has already been restored to the value it had prior to the SAVE |
706 | * The CWP has already been restored to the value it had prior to the SAVE |
| 700 | * at the beginning of this function. |
707 | * at the beginning of this function. |
| 701 | */ |
708 | */ |
| 702 | 0: |
709 | 0: |
| 703 | .if NOT(\is_syscall) |
710 | .if NOT(\is_syscall) |
| 704 | rdpr %tstate, %g1 |
711 | rdpr %tstate, %g1 |
| 705 | andcc %g1, TSTATE_PRIV_BIT, %g0 ! if we are not returning to userspace..., |
712 | andcc %g1, TSTATE_PRIV_BIT, %g0 ! if we are not returning to userspace..., |
| 706 | bnz 1f ! ...skip restoring userspace windows |
713 | bnz 1f ! ...skip restoring userspace windows |
| 707 | nop |
714 | nop |
| 708 | .endif |
715 | .endif |
| 709 | 716 | ||
| 710 | /* |
717 | /* |
| 711 | * Spills and fills will be processed by the {spill,fill}_1_normal |
718 | * Spills and fills will be processed by the {spill,fill}_1_normal |
| 712 | * handlers. |
719 | * handlers. |
| 713 | */ |
720 | */ |
| 714 | wrpr %g0, WSTATE_OTHER(0) | WSTATE_NORMAL(1), %wstate |
721 | wrpr %g0, WSTATE_OTHER(0) | WSTATE_NORMAL(1), %wstate |
| 715 | 722 | ||
| 716 | /* |
723 | /* |
| 717 | * Set primary context according to secondary context. |
724 | * Set primary context according to secondary context. |
| 718 | */ |
725 | */ |
| 719 | wr %g0, ASI_DMMU, %asi |
726 | wr %g0, ASI_DMMU, %asi |
| 720 | ldxa [VA_SECONDARY_CONTEXT_REG] %asi, %g1 |
727 | ldxa [VA_SECONDARY_CONTEXT_REG] %asi, %g1 |
| 721 | stxa %g1, [VA_PRIMARY_CONTEXT_REG] %asi |
728 | stxa %g1, [VA_PRIMARY_CONTEXT_REG] %asi |
| 722 | flush %o7 |
729 | flush %o7 |
| 723 | 730 | ||
| 724 | rdpr %cwp, %g1 |
731 | rdpr %cwp, %g1 |
| 725 | rdpr %otherwin, %g2 |
732 | rdpr %otherwin, %g2 |
| 726 | 733 | ||
| 727 | /* |
734 | /* |
| 728 | * Skip all OTHERWIN windows and descend to the first window |
735 | * Skip all OTHERWIN windows and descend to the first window |
| 729 | * in the userspace window buffer. |
736 | * in the userspace window buffer. |
| 730 | */ |
737 | */ |
| 731 | sub %g1, %g2, %g3 |
738 | sub %g1, %g2, %g3 |
| 732 | dec %g3 |
739 | dec %g3 |
| 733 | and %g3, NWINDOW - 1, %g3 |
740 | and %g3, NWINDOW - 1, %g3 |
| 734 | wrpr %g3, 0, %cwp |
741 | wrpr %g3, 0, %cwp |
| 735 | 742 | ||
| 736 | /* |
743 | /* |
| 737 | * CWP is now in the window last saved in the userspace window buffer. |
744 | * CWP is now in the window last saved in the userspace window buffer. |
| 738 | * Fill all windows stored in the buffer. |
745 | * Fill all windows stored in the buffer. |
| 739 | */ |
746 | */ |
| 740 | clr %g4 |
747 | clr %g4 |
| - | 748 | set PAGE_SIZE - 1, %g5 |
|
| 741 | 0: andcc %g7, PAGE_WIDTH - 1, %g0 ! PAGE_SIZE alignment check |
749 | 0: andcc %g7, %g5, %g0 ! PAGE_SIZE alignment check |
| 742 | bz 0f ! %g7 is page-aligned, no more windows to refill |
750 | bz 0f ! %g7 is page-aligned, no more windows to refill |
| 743 | nop |
751 | nop |
| 744 | 752 | ||
| 745 | add %g7, -STACK_WINDOW_SAVE_AREA_SIZE, %g7 |
753 | add %g7, -STACK_WINDOW_SAVE_AREA_SIZE, %g7 |
| 746 | ldx [%g7 + L0_OFFSET], %l0 |
754 | ldx [%g7 + L0_OFFSET], %l0 |
| 747 | ldx [%g7 + L1_OFFSET], %l1 |
755 | ldx [%g7 + L1_OFFSET], %l1 |
| 748 | ldx [%g7 + L2_OFFSET], %l2 |
756 | ldx [%g7 + L2_OFFSET], %l2 |
| 749 | ldx [%g7 + L3_OFFSET], %l3 |
757 | ldx [%g7 + L3_OFFSET], %l3 |
| 750 | ldx [%g7 + L4_OFFSET], %l4 |
758 | ldx [%g7 + L4_OFFSET], %l4 |
| 751 | ldx [%g7 + L5_OFFSET], %l5 |
759 | ldx [%g7 + L5_OFFSET], %l5 |
| 752 | ldx [%g7 + L6_OFFSET], %l6 |
760 | ldx [%g7 + L6_OFFSET], %l6 |
| 753 | ldx [%g7 + L7_OFFSET], %l7 |
761 | ldx [%g7 + L7_OFFSET], %l7 |
| 754 | ldx [%g7 + I0_OFFSET], %i0 |
762 | ldx [%g7 + I0_OFFSET], %i0 |
| 755 | ldx [%g7 + I1_OFFSET], %i1 |
763 | ldx [%g7 + I1_OFFSET], %i1 |
| 756 | ldx [%g7 + I2_OFFSET], %i2 |
764 | ldx [%g7 + I2_OFFSET], %i2 |
| 757 | ldx [%g7 + I3_OFFSET], %i3 |
765 | ldx [%g7 + I3_OFFSET], %i3 |
| 758 | ldx [%g7 + I4_OFFSET], %i4 |
766 | ldx [%g7 + I4_OFFSET], %i4 |
| 759 | ldx [%g7 + I5_OFFSET], %i5 |
767 | ldx [%g7 + I5_OFFSET], %i5 |
| 760 | ldx [%g7 + I6_OFFSET], %i6 |
768 | ldx [%g7 + I6_OFFSET], %i6 |
| 761 | ldx [%g7 + I7_OFFSET], %i7 |
769 | ldx [%g7 + I7_OFFSET], %i7 |
| 762 | 770 | ||
| 763 | dec %g3 |
771 | dec %g3 |
| 764 | and %g3, NWINDOW - 1, %g3 |
772 | and %g3, NWINDOW - 1, %g3 |
| 765 | wrpr %g3, 0, %cwp ! switch to the preceeding window |
773 | wrpr %g3, 0, %cwp ! switch to the preceeding window |
| 766 | 774 | ||
| 767 | ba 0b |
775 | ba 0b |
| 768 | inc %g4 |
776 | inc %g4 |
| 769 | 777 | ||
| 770 | 0: |
778 | 0: |
| 771 | /* |
779 | /* |
| 772 | * Switch back to the proper current window and adjust |
780 | * Switch back to the proper current window and adjust |
| 773 | * OTHERWIN, CANRESTORE, CANSAVE and CLEANWIN. |
781 | * OTHERWIN, CANRESTORE, CANSAVE and CLEANWIN. |
| 774 | */ |
782 | */ |
| 775 | wrpr %g1, 0, %cwp |
783 | wrpr %g1, 0, %cwp |
| 776 | add %g4, %g2, %g2 |
784 | add %g4, %g2, %g2 |
| 777 | cmp %g2, NWINDOW - 2 |
785 | cmp %g2, NWINDOW - 2 |
| 778 | bg 2f ! fix the CANRESTORE=NWINDOW-1 anomaly |
786 | bg 2f ! fix the CANRESTORE=NWINDOW-1 anomaly |
| 779 | mov NWINDOW - 2, %g1 ! use dealy slot for both cases |
787 | mov NWINDOW - 2, %g1 ! use dealy slot for both cases |
| 780 | sub %g1, %g2, %g1 |
788 | sub %g1, %g2, %g1 |
| 781 | 789 | ||
| 782 | wrpr %g0, 0, %otherwin |
790 | wrpr %g0, 0, %otherwin |
| 783 | wrpr %g1, 0, %cansave ! NWINDOW - 2 - CANRESTORE |
791 | wrpr %g1, 0, %cansave ! NWINDOW - 2 - CANRESTORE |
| 784 | wrpr %g2, 0, %canrestore ! OTHERWIN + windows in the buffer |
792 | wrpr %g2, 0, %canrestore ! OTHERWIN + windows in the buffer |
| 785 | wrpr %g2, 0, %cleanwin ! avoid information leak |
793 | wrpr %g2, 0, %cleanwin ! avoid information leak |
| 786 | 794 | ||
| 787 | 1: |
795 | 1: |
| 788 | restore |
796 | restore |
| 789 | 797 | ||
| 790 | .if \is_syscall |
798 | .if \is_syscall |
| 791 | done |
799 | done |
| 792 | .else |
800 | .else |
| 793 | retry |
801 | retry |
| 794 | .endif |
802 | .endif |
| 795 | 803 | ||
| 796 | /* |
804 | /* |
| 797 | * We got here in order to avoid inconsistency of the window state registers. |
805 | * We got here in order to avoid inconsistency of the window state registers. |
| 798 | * If the: |
806 | * If the: |
| 799 | * |
807 | * |
| 800 | * save %g6, -PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE, %sp |
808 | * save %g6, -PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE, %sp |
| 801 | * |
809 | * |
| 802 | * instruction trapped and spilled a register window into the userspace |
810 | * instruction trapped and spilled a register window into the userspace |
| 803 | * window buffer, we have just restored NWINDOW - 1 register windows. |
811 | * window buffer, we have just restored NWINDOW - 1 register windows. |
| 804 | * However, CANRESTORE can be only NWINDOW - 2 at most. |
812 | * However, CANRESTORE can be only NWINDOW - 2 at most. |
| 805 | * |
813 | * |
| 806 | * The solution is to manually switch to (CWP - 1) mod NWINDOW |
814 | * The solution is to manually switch to (CWP - 1) mod NWINDOW |
| 807 | * and set the window state registers so that: |
815 | * and set the window state registers so that: |
| 808 | * |
816 | * |
| 809 | * CANRESTORE = NWINDOW - 2 |
817 | * CANRESTORE = NWINDOW - 2 |
| 810 | * CLEANWIN = NWINDOW - 2 |
818 | * CLEANWIN = NWINDOW - 2 |
| 811 | * CANSAVE = 0 |
819 | * CANSAVE = 0 |
| 812 | * OTHERWIN = 0 |
820 | * OTHERWIN = 0 |
| 813 | * |
821 | * |
| 814 | * The RESTORE isntruction is therfore to be skipped. |
822 | * The RESTORE isntruction is therfore to be skipped. |
| 815 | */ |
823 | */ |
| 816 | 2: |
824 | 2: |
| 817 | wrpr %g0, 0, %otherwin |
825 | wrpr %g0, 0, %otherwin |
| 818 | wrpr %g0, 0, %cansave |
826 | wrpr %g0, 0, %cansave |
| 819 | wrpr %g1, 0, %canrestore |
827 | wrpr %g1, 0, %canrestore |
| 820 | wrpr %g1, 0, %cleanwin |
828 | wrpr %g1, 0, %cleanwin |
| 821 | 829 | ||
| 822 | rdpr %cwp, %g1 |
830 | rdpr %cwp, %g1 |
| 823 | dec %g1 |
831 | dec %g1 |
| 824 | and %g1, NWINDOW - 1, %g1 |
832 | and %g1, NWINDOW - 1, %g1 |
| 825 | wrpr %g1, 0, %cwp ! CWP-- |
833 | wrpr %g1, 0, %cwp ! CWP-- |
| 826 | 834 | ||
| 827 | .if \is_syscall |
835 | .if \is_syscall |
| 828 | done |
836 | done |
| 829 | .else |
837 | .else |
| 830 | retry |
838 | retry |
| 831 | .endif |
839 | .endif |
| 832 | 840 | ||
| 833 | .endm |
841 | .endm |
| 834 | 842 | ||
| 835 | .global preemptible_handler |
843 | .global preemptible_handler |
| 836 | preemptible_handler: |
844 | preemptible_handler: |
| 837 | PREEMPTIBLE_HANDLER_TEMPLATE 0 |
845 | PREEMPTIBLE_HANDLER_TEMPLATE 0 |
| 838 | 846 | ||
| 839 | .global trap_instruction_handler |
847 | .global trap_instruction_handler |
| 840 | trap_instruction_handler: |
848 | trap_instruction_handler: |
| 841 | PREEMPTIBLE_HANDLER_TEMPLATE 1 |
849 | PREEMPTIBLE_HANDLER_TEMPLATE 1 |
| 842 | 850 | ||