xref: /openbmc/qemu/target/riscv/cpu_bits.h (revision 747a43e8)
1 /* RISC-V ISA constants */
2 
3 #ifndef TARGET_RISCV_CPU_BITS_H
4 #define TARGET_RISCV_CPU_BITS_H
5 
6 #define get_field(reg, mask) (((reg) & \
7                  (target_ulong)(mask)) / ((mask) & ~((mask) << 1)))
8 #define set_field(reg, mask, val) (((reg) & ~(target_ulong)(mask)) | \
9                  (((target_ulong)(val) * ((mask) & ~((mask) << 1))) & \
10                  (target_ulong)(mask)))
11 
12 /* Floating point round mode */
13 #define FSR_RD_SHIFT        5
14 #define FSR_RD              (0x7 << FSR_RD_SHIFT)
15 
16 /* Floating point accrued exception flags */
17 #define FPEXC_NX            0x01
18 #define FPEXC_UF            0x02
19 #define FPEXC_OF            0x04
20 #define FPEXC_DZ            0x08
21 #define FPEXC_NV            0x10
22 
23 /* Floating point status register bits */
24 #define FSR_AEXC_SHIFT      0
25 #define FSR_NVA             (FPEXC_NV << FSR_AEXC_SHIFT)
26 #define FSR_OFA             (FPEXC_OF << FSR_AEXC_SHIFT)
27 #define FSR_UFA             (FPEXC_UF << FSR_AEXC_SHIFT)
28 #define FSR_DZA             (FPEXC_DZ << FSR_AEXC_SHIFT)
29 #define FSR_NXA             (FPEXC_NX << FSR_AEXC_SHIFT)
30 #define FSR_AEXC            (FSR_NVA | FSR_OFA | FSR_UFA | FSR_DZA | FSR_NXA)
31 
32 /* Control and Status Registers */
33 
34 /* User Trap Setup */
35 #define CSR_USTATUS         0x000
36 #define CSR_UIE             0x004
37 #define CSR_UTVEC           0x005
38 
39 /* User Trap Handling */
40 #define CSR_USCRATCH        0x040
41 #define CSR_UEPC            0x041
42 #define CSR_UCAUSE          0x042
43 #define CSR_UTVAL           0x043
44 #define CSR_UIP             0x044
45 
46 /* User Floating-Point CSRs */
47 #define CSR_FFLAGS          0x001
48 #define CSR_FRM             0x002
49 #define CSR_FCSR            0x003
50 
51 /* User Timers and Counters */
52 #define CSR_CYCLE           0xc00
53 #define CSR_TIME            0xc01
54 #define CSR_INSTRET         0xc02
55 #define CSR_HPMCOUNTER3     0xc03
56 #define CSR_HPMCOUNTER4     0xc04
57 #define CSR_HPMCOUNTER5     0xc05
58 #define CSR_HPMCOUNTER6     0xc06
59 #define CSR_HPMCOUNTER7     0xc07
60 #define CSR_HPMCOUNTER8     0xc08
61 #define CSR_HPMCOUNTER9     0xc09
62 #define CSR_HPMCOUNTER10    0xc0a
63 #define CSR_HPMCOUNTER11    0xc0b
64 #define CSR_HPMCOUNTER12    0xc0c
65 #define CSR_HPMCOUNTER13    0xc0d
66 #define CSR_HPMCOUNTER14    0xc0e
67 #define CSR_HPMCOUNTER15    0xc0f
68 #define CSR_HPMCOUNTER16    0xc10
69 #define CSR_HPMCOUNTER17    0xc11
70 #define CSR_HPMCOUNTER18    0xc12
71 #define CSR_HPMCOUNTER19    0xc13
72 #define CSR_HPMCOUNTER20    0xc14
73 #define CSR_HPMCOUNTER21    0xc15
74 #define CSR_HPMCOUNTER22    0xc16
75 #define CSR_HPMCOUNTER23    0xc17
76 #define CSR_HPMCOUNTER24    0xc18
77 #define CSR_HPMCOUNTER25    0xc19
78 #define CSR_HPMCOUNTER26    0xc1a
79 #define CSR_HPMCOUNTER27    0xc1b
80 #define CSR_HPMCOUNTER28    0xc1c
81 #define CSR_HPMCOUNTER29    0xc1d
82 #define CSR_HPMCOUNTER30    0xc1e
83 #define CSR_HPMCOUNTER31    0xc1f
84 #define CSR_CYCLEH          0xc80
85 #define CSR_TIMEH           0xc81
86 #define CSR_INSTRETH        0xc82
87 #define CSR_HPMCOUNTER3H    0xc83
88 #define CSR_HPMCOUNTER4H    0xc84
89 #define CSR_HPMCOUNTER5H    0xc85
90 #define CSR_HPMCOUNTER6H    0xc86
91 #define CSR_HPMCOUNTER7H    0xc87
92 #define CSR_HPMCOUNTER8H    0xc88
93 #define CSR_HPMCOUNTER9H    0xc89
94 #define CSR_HPMCOUNTER10H   0xc8a
95 #define CSR_HPMCOUNTER11H   0xc8b
96 #define CSR_HPMCOUNTER12H   0xc8c
97 #define CSR_HPMCOUNTER13H   0xc8d
98 #define CSR_HPMCOUNTER14H   0xc8e
99 #define CSR_HPMCOUNTER15H   0xc8f
100 #define CSR_HPMCOUNTER16H   0xc90
101 #define CSR_HPMCOUNTER17H   0xc91
102 #define CSR_HPMCOUNTER18H   0xc92
103 #define CSR_HPMCOUNTER19H   0xc93
104 #define CSR_HPMCOUNTER20H   0xc94
105 #define CSR_HPMCOUNTER21H   0xc95
106 #define CSR_HPMCOUNTER22H   0xc96
107 #define CSR_HPMCOUNTER23H   0xc97
108 #define CSR_HPMCOUNTER24H   0xc98
109 #define CSR_HPMCOUNTER25H   0xc99
110 #define CSR_HPMCOUNTER26H   0xc9a
111 #define CSR_HPMCOUNTER27H   0xc9b
112 #define CSR_HPMCOUNTER28H   0xc9c
113 #define CSR_HPMCOUNTER29H   0xc9d
114 #define CSR_HPMCOUNTER30H   0xc9e
115 #define CSR_HPMCOUNTER31H   0xc9f
116 
117 /* Machine Timers and Counters */
118 #define CSR_MCYCLE          0xb00
119 #define CSR_MINSTRET        0xb02
120 #define CSR_MCYCLEH         0xb80
121 #define CSR_MINSTRETH       0xb82
122 
123 /* Machine Information Registers */
124 #define CSR_MVENDORID       0xf11
125 #define CSR_MARCHID         0xf12
126 #define CSR_MIMPID          0xf13
127 #define CSR_MHARTID         0xf14
128 
129 /* Machine Trap Setup */
130 #define CSR_MSTATUS         0x300
131 #define CSR_MISA            0x301
132 #define CSR_MEDELEG         0x302
133 #define CSR_MIDELEG         0x303
134 #define CSR_MIE             0x304
135 #define CSR_MTVEC           0x305
136 #define CSR_MCOUNTEREN      0x306
137 
138 /* Legacy Counter Setup (priv v1.9.1) */
139 /* Update to #define CSR_MCOUNTINHIBIT 0x320 for 1.11.0 */
140 #define CSR_MUCOUNTEREN     0x320
141 #define CSR_MSCOUNTEREN     0x321
142 #define CSR_MHCOUNTEREN     0x322
143 
144 /* Machine Trap Handling */
145 #define CSR_MSCRATCH        0x340
146 #define CSR_MEPC            0x341
147 #define CSR_MCAUSE          0x342
148 #define CSR_MTVAL           0x343
149 #define CSR_MIP             0x344
150 
151 /* Legacy Machine Trap Handling (priv v1.9.1) */
152 #define CSR_MBADADDR        0x343
153 
154 /* Supervisor Trap Setup */
155 #define CSR_SSTATUS         0x100
156 #define CSR_SEDELEG         0x102
157 #define CSR_SIDELEG         0x103
158 #define CSR_SIE             0x104
159 #define CSR_STVEC           0x105
160 #define CSR_SCOUNTEREN      0x106
161 
162 /* Supervisor Trap Handling */
163 #define CSR_SSCRATCH        0x140
164 #define CSR_SEPC            0x141
165 #define CSR_SCAUSE          0x142
166 #define CSR_STVAL           0x143
167 #define CSR_SIP             0x144
168 
169 /* Legacy Supervisor Trap Handling (priv v1.9.1) */
170 #define CSR_SBADADDR        0x143
171 
172 /* Supervisor Protection and Translation */
173 #define CSR_SPTBR           0x180
174 #define CSR_SATP            0x180
175 
176 /* Physical Memory Protection */
177 #define CSR_PMPCFG0         0x3a0
178 #define CSR_PMPCFG1         0x3a1
179 #define CSR_PMPCFG2         0x3a2
180 #define CSR_PMPCFG3         0x3a3
181 #define CSR_PMPADDR0        0x3b0
182 #define CSR_PMPADDR1        0x3b1
183 #define CSR_PMPADDR2        0x3b2
184 #define CSR_PMPADDR3        0x3b3
185 #define CSR_PMPADDR4        0x3b4
186 #define CSR_PMPADDR5        0x3b5
187 #define CSR_PMPADDR6        0x3b6
188 #define CSR_PMPADDR7        0x3b7
189 #define CSR_PMPADDR8        0x3b8
190 #define CSR_PMPADDR9        0x3b9
191 #define CSR_PMPADDR10       0x3ba
192 #define CSR_PMPADDR11       0x3bb
193 #define CSR_PMPADDR12       0x3bc
194 #define CSR_PMPADDR13       0x3bd
195 #define CSR_PMPADDR14       0x3be
196 #define CSR_PMPADDR15       0x3bf
197 
198 /* Debug/Trace Registers (shared with Debug Mode) */
199 #define CSR_TSELECT         0x7a0
200 #define CSR_TDATA1          0x7a1
201 #define CSR_TDATA2          0x7a2
202 #define CSR_TDATA3          0x7a3
203 
204 /* Debug Mode Registers */
205 #define CSR_DCSR            0x7b0
206 #define CSR_DPC             0x7b1
207 #define CSR_DSCRATCH        0x7b2
208 
209 /* Hpervisor CSRs */
210 #define CSR_HSTATUS         0xa00
211 #define CSR_HEDELEG         0xa02
212 #define CSR_HIDELEG         0xa03
213 #define CSR_HGATP           0xa80
214 
215 #if defined(TARGET_RISCV32)
216 #define HGATP_MODE           SATP32_MODE
217 #define HGATP_ASID           SATP32_ASID
218 #define HGATP_PPN            SATP32_PPN
219 #endif
220 #if defined(TARGET_RISCV64)
221 #define HGATP_MODE           SATP64_MODE
222 #define HGATP_ASID           SATP64_ASID
223 #define HGATP_PPN            SATP64_PPN
224 #endif
225 
226 /* Performance Counters */
227 #define CSR_MHPMCOUNTER3    0xb03
228 #define CSR_MHPMCOUNTER4    0xb04
229 #define CSR_MHPMCOUNTER5    0xb05
230 #define CSR_MHPMCOUNTER6    0xb06
231 #define CSR_MHPMCOUNTER7    0xb07
232 #define CSR_MHPMCOUNTER8    0xb08
233 #define CSR_MHPMCOUNTER9    0xb09
234 #define CSR_MHPMCOUNTER10   0xb0a
235 #define CSR_MHPMCOUNTER11   0xb0b
236 #define CSR_MHPMCOUNTER12   0xb0c
237 #define CSR_MHPMCOUNTER13   0xb0d
238 #define CSR_MHPMCOUNTER14   0xb0e
239 #define CSR_MHPMCOUNTER15   0xb0f
240 #define CSR_MHPMCOUNTER16   0xb10
241 #define CSR_MHPMCOUNTER17   0xb11
242 #define CSR_MHPMCOUNTER18   0xb12
243 #define CSR_MHPMCOUNTER19   0xb13
244 #define CSR_MHPMCOUNTER20   0xb14
245 #define CSR_MHPMCOUNTER21   0xb15
246 #define CSR_MHPMCOUNTER22   0xb16
247 #define CSR_MHPMCOUNTER23   0xb17
248 #define CSR_MHPMCOUNTER24   0xb18
249 #define CSR_MHPMCOUNTER25   0xb19
250 #define CSR_MHPMCOUNTER26   0xb1a
251 #define CSR_MHPMCOUNTER27   0xb1b
252 #define CSR_MHPMCOUNTER28   0xb1c
253 #define CSR_MHPMCOUNTER29   0xb1d
254 #define CSR_MHPMCOUNTER30   0xb1e
255 #define CSR_MHPMCOUNTER31   0xb1f
256 #define CSR_MHPMEVENT3      0x323
257 #define CSR_MHPMEVENT4      0x324
258 #define CSR_MHPMEVENT5      0x325
259 #define CSR_MHPMEVENT6      0x326
260 #define CSR_MHPMEVENT7      0x327
261 #define CSR_MHPMEVENT8      0x328
262 #define CSR_MHPMEVENT9      0x329
263 #define CSR_MHPMEVENT10     0x32a
264 #define CSR_MHPMEVENT11     0x32b
265 #define CSR_MHPMEVENT12     0x32c
266 #define CSR_MHPMEVENT13     0x32d
267 #define CSR_MHPMEVENT14     0x32e
268 #define CSR_MHPMEVENT15     0x32f
269 #define CSR_MHPMEVENT16     0x330
270 #define CSR_MHPMEVENT17     0x331
271 #define CSR_MHPMEVENT18     0x332
272 #define CSR_MHPMEVENT19     0x333
273 #define CSR_MHPMEVENT20     0x334
274 #define CSR_MHPMEVENT21     0x335
275 #define CSR_MHPMEVENT22     0x336
276 #define CSR_MHPMEVENT23     0x337
277 #define CSR_MHPMEVENT24     0x338
278 #define CSR_MHPMEVENT25     0x339
279 #define CSR_MHPMEVENT26     0x33a
280 #define CSR_MHPMEVENT27     0x33b
281 #define CSR_MHPMEVENT28     0x33c
282 #define CSR_MHPMEVENT29     0x33d
283 #define CSR_MHPMEVENT30     0x33e
284 #define CSR_MHPMEVENT31     0x33f
285 #define CSR_MHPMCOUNTER3H   0xb83
286 #define CSR_MHPMCOUNTER4H   0xb84
287 #define CSR_MHPMCOUNTER5H   0xb85
288 #define CSR_MHPMCOUNTER6H   0xb86
289 #define CSR_MHPMCOUNTER7H   0xb87
290 #define CSR_MHPMCOUNTER8H   0xb88
291 #define CSR_MHPMCOUNTER9H   0xb89
292 #define CSR_MHPMCOUNTER10H  0xb8a
293 #define CSR_MHPMCOUNTER11H  0xb8b
294 #define CSR_MHPMCOUNTER12H  0xb8c
295 #define CSR_MHPMCOUNTER13H  0xb8d
296 #define CSR_MHPMCOUNTER14H  0xb8e
297 #define CSR_MHPMCOUNTER15H  0xb8f
298 #define CSR_MHPMCOUNTER16H  0xb90
299 #define CSR_MHPMCOUNTER17H  0xb91
300 #define CSR_MHPMCOUNTER18H  0xb92
301 #define CSR_MHPMCOUNTER19H  0xb93
302 #define CSR_MHPMCOUNTER20H  0xb94
303 #define CSR_MHPMCOUNTER21H  0xb95
304 #define CSR_MHPMCOUNTER22H  0xb96
305 #define CSR_MHPMCOUNTER23H  0xb97
306 #define CSR_MHPMCOUNTER24H  0xb98
307 #define CSR_MHPMCOUNTER25H  0xb99
308 #define CSR_MHPMCOUNTER26H  0xb9a
309 #define CSR_MHPMCOUNTER27H  0xb9b
310 #define CSR_MHPMCOUNTER28H  0xb9c
311 #define CSR_MHPMCOUNTER29H  0xb9d
312 #define CSR_MHPMCOUNTER30H  0xb9e
313 #define CSR_MHPMCOUNTER31H  0xb9f
314 
315 /* Legacy Hypervisor Trap Setup (priv v1.9.1) */
316 #define CSR_HIE             0x204
317 #define CSR_HTVEC           0x205
318 
319 /* Legacy Hypervisor Trap Handling (priv v1.9.1) */
320 #define CSR_HSCRATCH        0x240
321 #define CSR_HEPC            0x241
322 #define CSR_HCAUSE          0x242
323 #define CSR_HBADADDR        0x243
324 #define CSR_HIP             0x244
325 
326 /* Legacy Machine Protection and Translation (priv v1.9.1) */
327 #define CSR_MBASE           0x380
328 #define CSR_MBOUND          0x381
329 #define CSR_MIBASE          0x382
330 #define CSR_MIBOUND         0x383
331 #define CSR_MDBASE          0x384
332 #define CSR_MDBOUND         0x385
333 
334 /* mstatus CSR bits */
335 #define MSTATUS_UIE         0x00000001
336 #define MSTATUS_SIE         0x00000002
337 #define MSTATUS_MIE         0x00000008
338 #define MSTATUS_UPIE        0x00000010
339 #define MSTATUS_SPIE        0x00000020
340 #define MSTATUS_MPIE        0x00000080
341 #define MSTATUS_SPP         0x00000100
342 #define MSTATUS_MPP         0x00001800
343 #define MSTATUS_FS          0x00006000
344 #define MSTATUS_XS          0x00018000
345 #define MSTATUS_MPRV        0x00020000
346 #define MSTATUS_PUM         0x00040000 /* until: priv-1.9.1 */
347 #define MSTATUS_SUM         0x00040000 /* since: priv-1.10 */
348 #define MSTATUS_MXR         0x00080000
349 #define MSTATUS_VM          0x1F000000 /* until: priv-1.9.1 */
350 #define MSTATUS_TVM         0x00100000 /* since: priv-1.10 */
351 #define MSTATUS_TW          0x20000000 /* since: priv-1.10 */
352 #define MSTATUS_TSR         0x40000000 /* since: priv-1.10 */
353 #define MSTATUS_MTL         0x4000000000ULL
354 #define MSTATUS_MPV         0x8000000000ULL
355 
356 #define MSTATUS64_UXL       0x0000000300000000ULL
357 #define MSTATUS64_SXL       0x0000000C00000000ULL
358 
359 #define MSTATUS32_SD        0x80000000
360 #define MSTATUS64_SD        0x8000000000000000ULL
361 
362 #define MISA32_MXL          0xC0000000
363 #define MISA64_MXL          0xC000000000000000ULL
364 
365 #define MXL_RV32            1
366 #define MXL_RV64            2
367 #define MXL_RV128           3
368 
369 #if defined(TARGET_RISCV32)
370 #define MSTATUS_SD MSTATUS32_SD
371 #define MISA_MXL MISA32_MXL
372 #define MXL_VAL MXL_RV32
373 #elif defined(TARGET_RISCV64)
374 #define MSTATUS_SD MSTATUS64_SD
375 #define MISA_MXL MISA64_MXL
376 #define MXL_VAL MXL_RV64
377 #endif
378 
379 /* sstatus CSR bits */
380 #define SSTATUS_UIE         0x00000001
381 #define SSTATUS_SIE         0x00000002
382 #define SSTATUS_UPIE        0x00000010
383 #define SSTATUS_SPIE        0x00000020
384 #define SSTATUS_SPP         0x00000100
385 #define SSTATUS_FS          0x00006000
386 #define SSTATUS_XS          0x00018000
387 #define SSTATUS_PUM         0x00040000 /* until: priv-1.9.1 */
388 #define SSTATUS_SUM         0x00040000 /* since: priv-1.10 */
389 #define SSTATUS_MXR         0x00080000
390 
391 #define SSTATUS32_SD        0x80000000
392 #define SSTATUS64_SD        0x8000000000000000ULL
393 
394 #if defined(TARGET_RISCV32)
395 #define SSTATUS_SD SSTATUS32_SD
396 #elif defined(TARGET_RISCV64)
397 #define SSTATUS_SD SSTATUS64_SD
398 #endif
399 
400 /* hstatus CSR bits */
401 #define HSTATUS_SPRV         0x00000001
402 #define HSTATUS_STL          0x00000040
403 #define HSTATUS_SPV          0x00000080
404 #define HSTATUS_SP2P         0x00000100
405 #define HSTATUS_SP2V         0x00000200
406 #define HSTATUS_VTVM         0x00100000
407 #define HSTATUS_VTSR         0x00400000
408 
409 #define HSTATUS32_WPRI       0xFF8FF87E
410 #define HSTATUS64_WPRI       0xFFFFFFFFFF8FF87EULL
411 
412 #if defined(TARGET_RISCV32)
413 #define HSTATUS_WPRI HSTATUS32_WPRI
414 #elif defined(TARGET_RISCV64)
415 #define HSTATUS_WPRI HSTATUS64_WPRI
416 #endif
417 
418 /* Privilege modes */
419 #define PRV_U 0
420 #define PRV_S 1
421 #define PRV_H 2 /* Reserved */
422 #define PRV_M 3
423 
424 /* RV32 satp CSR field masks */
425 #define SATP32_MODE         0x80000000
426 #define SATP32_ASID         0x7fc00000
427 #define SATP32_PPN          0x003fffff
428 
429 /* RV64 satp CSR field masks */
430 #define SATP64_MODE         0xF000000000000000ULL
431 #define SATP64_ASID         0x0FFFF00000000000ULL
432 #define SATP64_PPN          0x00000FFFFFFFFFFFULL
433 
434 #if defined(TARGET_RISCV32)
435 #define SATP_MODE           SATP32_MODE
436 #define SATP_ASID           SATP32_ASID
437 #define SATP_PPN            SATP32_PPN
438 #endif
439 #if defined(TARGET_RISCV64)
440 #define SATP_MODE           SATP64_MODE
441 #define SATP_ASID           SATP64_ASID
442 #define SATP_PPN            SATP64_PPN
443 #endif
444 
445 /* VM modes (mstatus.vm) privileged ISA 1.9.1 */
446 #define VM_1_09_MBARE       0
447 #define VM_1_09_MBB         1
448 #define VM_1_09_MBBID       2
449 #define VM_1_09_SV32        8
450 #define VM_1_09_SV39        9
451 #define VM_1_09_SV48        10
452 
453 /* VM modes (satp.mode) privileged ISA 1.10 */
454 #define VM_1_10_MBARE       0
455 #define VM_1_10_SV32        1
456 #define VM_1_10_SV39        8
457 #define VM_1_10_SV48        9
458 #define VM_1_10_SV57        10
459 #define VM_1_10_SV64        11
460 
461 /* Page table entry (PTE) fields */
462 #define PTE_V               0x001 /* Valid */
463 #define PTE_R               0x002 /* Read */
464 #define PTE_W               0x004 /* Write */
465 #define PTE_X               0x008 /* Execute */
466 #define PTE_U               0x010 /* User */
467 #define PTE_G               0x020 /* Global */
468 #define PTE_A               0x040 /* Accessed */
469 #define PTE_D               0x080 /* Dirty */
470 #define PTE_SOFT            0x300 /* Reserved for Software */
471 
472 /* Page table PPN shift amount */
473 #define PTE_PPN_SHIFT       10
474 
475 /* Leaf page shift amount */
476 #define PGSHIFT             12
477 
478 /* Default Reset Vector adress */
479 #define DEFAULT_RSTVEC      0x1000
480 
481 /* Exception causes */
482 #define EXCP_NONE                          -1 /* sentinel value */
483 #define RISCV_EXCP_INST_ADDR_MIS           0x0
484 #define RISCV_EXCP_INST_ACCESS_FAULT       0x1
485 #define RISCV_EXCP_ILLEGAL_INST            0x2
486 #define RISCV_EXCP_BREAKPOINT              0x3
487 #define RISCV_EXCP_LOAD_ADDR_MIS           0x4
488 #define RISCV_EXCP_LOAD_ACCESS_FAULT       0x5
489 #define RISCV_EXCP_STORE_AMO_ADDR_MIS      0x6
490 #define RISCV_EXCP_STORE_AMO_ACCESS_FAULT  0x7
491 #define RISCV_EXCP_U_ECALL                 0x8
492 #define RISCV_EXCP_S_ECALL                 0x9
493 #define RISCV_EXCP_H_ECALL                 0xa
494 #define RISCV_EXCP_M_ECALL                 0xb
495 #define RISCV_EXCP_INST_PAGE_FAULT         0xc /* since: priv-1.10.0 */
496 #define RISCV_EXCP_LOAD_PAGE_FAULT         0xd /* since: priv-1.10.0 */
497 #define RISCV_EXCP_STORE_PAGE_FAULT        0xf /* since: priv-1.10.0 */
498 
499 #define RISCV_EXCP_INT_FLAG                0x80000000
500 #define RISCV_EXCP_INT_MASK                0x7fffffff
501 
502 /* Interrupt causes */
503 #define IRQ_U_SOFT                         0
504 #define IRQ_S_SOFT                         1
505 #define IRQ_H_SOFT                         2  /* reserved */
506 #define IRQ_M_SOFT                         3
507 #define IRQ_U_TIMER                        4
508 #define IRQ_S_TIMER                        5
509 #define IRQ_H_TIMER                        6  /* reserved */
510 #define IRQ_M_TIMER                        7
511 #define IRQ_U_EXT                          8
512 #define IRQ_S_EXT                          9
513 #define IRQ_H_EXT                          10 /* reserved */
514 #define IRQ_M_EXT                          11
515 
516 /* mip masks */
517 #define MIP_USIP                           (1 << IRQ_U_SOFT)
518 #define MIP_SSIP                           (1 << IRQ_S_SOFT)
519 #define MIP_HSIP                           (1 << IRQ_H_SOFT)
520 #define MIP_MSIP                           (1 << IRQ_M_SOFT)
521 #define MIP_UTIP                           (1 << IRQ_U_TIMER)
522 #define MIP_STIP                           (1 << IRQ_S_TIMER)
523 #define MIP_HTIP                           (1 << IRQ_H_TIMER)
524 #define MIP_MTIP                           (1 << IRQ_M_TIMER)
525 #define MIP_UEIP                           (1 << IRQ_U_EXT)
526 #define MIP_SEIP                           (1 << IRQ_S_EXT)
527 #define MIP_HEIP                           (1 << IRQ_H_EXT)
528 #define MIP_MEIP                           (1 << IRQ_M_EXT)
529 
530 /* sip masks */
531 #define SIP_SSIP                           MIP_SSIP
532 #define SIP_STIP                           MIP_STIP
533 #define SIP_SEIP                           MIP_SEIP
534 
535 #endif
536