summaryrefslogtreecommitdiff
path: root/arch/loongarch/include/asm/loongarch.h
blob: eb09adda54b7c855eb56232b4442b79fadd09d46 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
 */
#ifndef _ASM_LOONGARCH_H
#define _ASM_LOONGARCH_H

#include <linux/bits.h>
#include <linux/linkage.h>
#include <linux/types.h>

#ifndef __ASSEMBLY__
#include <larchintrin.h>

/* CPUCFG */
#define read_cpucfg(reg) __cpucfg(reg)

#endif /* !__ASSEMBLY__ */

#ifdef __ASSEMBLY__

/* LoongArch Registers */
#define REG_ZERO	0x0
#define REG_RA		0x1
#define REG_TP		0x2
#define REG_SP		0x3
#define REG_A0		0x4 /* Reused as V0 for return value */
#define REG_A1		0x5 /* Reused as V1 for return value */
#define REG_A2		0x6
#define REG_A3		0x7
#define REG_A4		0x8
#define REG_A5		0x9
#define REG_A6		0xa
#define REG_A7		0xb
#define REG_T0		0xc
#define REG_T1		0xd
#define REG_T2		0xe
#define REG_T3		0xf
#define REG_T4		0x10
#define REG_T5		0x11
#define REG_T6		0x12
#define REG_T7		0x13
#define REG_T8		0x14
#define REG_U0		0x15 /* Kernel uses it as percpu base */
#define REG_FP		0x16
#define REG_S0		0x17
#define REG_S1		0x18
#define REG_S2		0x19
#define REG_S3		0x1a
#define REG_S4		0x1b
#define REG_S5		0x1c
#define REG_S6		0x1d
#define REG_S7		0x1e
#define REG_S8		0x1f

#endif /* __ASSEMBLY__ */

/* Bit fields for CPUCFG registers */
#define LOONGARCH_CPUCFG0		0x0
#define  CPUCFG0_PRID			GENMASK(31, 0)

#define LOONGARCH_CPUCFG1		0x1
#define  CPUCFG1_ISGR32			BIT(0)
#define  CPUCFG1_ISGR64			BIT(1)
#define  CPUCFG1_PAGING			BIT(2)
#define  CPUCFG1_IOCSR			BIT(3)
#define  CPUCFG1_PABITS			GENMASK(11, 4)
#define  CPUCFG1_VABITS			GENMASK(19, 12)
#define  CPUCFG1_UAL			BIT(20)
#define  CPUCFG1_RI			BIT(21)
#define  CPUCFG1_EP			BIT(22)
#define  CPUCFG1_RPLV			BIT(23)
#define  CPUCFG1_HUGEPG			BIT(24)
#define  CPUCFG1_CRC32			BIT(25)
#define  CPUCFG1_MSGINT			BIT(26)

#define LOONGARCH_CPUCFG2		0x2
#define  CPUCFG2_FP			BIT(0)
#define  CPUCFG2_FPSP			BIT(1)
#define  CPUCFG2_FPDP			BIT(2)
#define  CPUCFG2_FPVERS			GENMASK(5, 3)
#define  CPUCFG2_LSX			BIT(6)
#define  CPUCFG2_LASX			BIT(7)
#define  CPUCFG2_COMPLEX		BIT(8)
#define  CPUCFG2_CRYPTO			BIT(9)
#define  CPUCFG2_LVZP			BIT(10)
#define  CPUCFG2_LVZVER			GENMASK(13, 11)
#define  CPUCFG2_LLFTP			BIT(14)
#define  CPUCFG2_LLFTPREV		GENMASK(17, 15)
#define  CPUCFG2_X86BT			BIT(18)
#define  CPUCFG2_ARMBT			BIT(19)
#define  CPUCFG2_MIPSBT			BIT(20)
#define  CPUCFG2_LSPW			BIT(21)
#define  CPUCFG2_LAM			BIT(22)
#define  CPUCFG2_PTW			BIT(24)

#define LOONGARCH_CPUCFG3		0x3
#define  CPUCFG3_CCDMA			BIT(0)
#define  CPUCFG3_SFB			BIT(1)
#define  CPUCFG3_UCACC			BIT(2)
#define  CPUCFG3_LLEXC			BIT(3)
#define  CPUCFG3_SCDLY			BIT(4)
#define  CPUCFG3_LLDBAR			BIT(5)
#define  CPUCFG3_ITLBT			BIT(6)
#define  CPUCFG3_ICACHET		BIT(7)
#define  CPUCFG3_SPW_LVL		GENMASK(10, 8)
#define  CPUCFG3_SPW_HG_HF		BIT(11)
#define  CPUCFG3_RVA			BIT(12)
#define  CPUCFG3_RVAMAX			GENMASK(16, 13)

#define LOONGARCH_CPUCFG4		0x4
#define  CPUCFG4_CCFREQ			GENMASK(31, 0)

#define LOONGARCH_CPUCFG5		0x5
#define  CPUCFG5_CCMUL			GENMASK(15, 0)
#define  CPUCFG5_CCDIV			GENMASK(31, 16)

#define LOONGARCH_CPUCFG6		0x6
#define  CPUCFG6_PMP			BIT(0)
#define  CPUCFG6_PAMVER			GENMASK(3, 1)
#define  CPUCFG6_PMNUM			GENMASK(7, 4)
#define  CPUCFG6_PMBITS			GENMASK(13, 8)
#define  CPUCFG6_UPM			BIT(14)

#define LOONGARCH_CPUCFG16		0x10
#define  CPUCFG16_L1_IUPRE		BIT(0)
#define  CPUCFG16_L1_IUUNIFY		BIT(1)
#define  CPUCFG16_L1_DPRE		BIT(2)
#define  CPUCFG16_L2_IUPRE		BIT(3)
#define  CPUCFG16_L2_IUUNIFY		BIT(4)
#define  CPUCFG16_L2_IUPRIV		BIT(5)
#define  CPUCFG16_L2_IUINCL		BIT(6)
#define  CPUCFG16_L2_DPRE		BIT(7)
#define  CPUCFG16_L2_DPRIV		BIT(8)
#define  CPUCFG16_L2_DINCL		BIT(9)
#define  CPUCFG16_L3_IUPRE		BIT(10)
#define  CPUCFG16_L3_IUUNIFY		BIT(11)
#define  CPUCFG16_L3_IUPRIV		BIT(12)
#define  CPUCFG16_L3_IUINCL		BIT(13)
#define  CPUCFG16_L3_DPRE		BIT(14)
#define  CPUCFG16_L3_DPRIV		BIT(15)
#define  CPUCFG16_L3_DINCL		BIT(16)

#define LOONGARCH_CPUCFG17		0x11
#define LOONGARCH_CPUCFG18		0x12
#define LOONGARCH_CPUCFG19		0x13
#define LOONGARCH_CPUCFG20		0x14
#define  CPUCFG_CACHE_WAYS_M		GENMASK(15, 0)
#define  CPUCFG_CACHE_SETS_M		GENMASK(23, 16)
#define  CPUCFG_CACHE_LSIZE_M		GENMASK(30, 24)
#define  CPUCFG_CACHE_WAYS	 	0
#define  CPUCFG_CACHE_SETS		16
#define  CPUCFG_CACHE_LSIZE		24

#define LOONGARCH_CPUCFG48		0x30
#define  CPUCFG48_MCSR_LCK		BIT(0)
#define  CPUCFG48_NAP_EN		BIT(1)
#define  CPUCFG48_VFPU_CG		BIT(2)
#define  CPUCFG48_RAM_CG		BIT(3)

/*
 * CPUCFG index area: 0x40000000 -- 0x400000ff
 * SW emulation for KVM hypervirsor
 */
#define CPUCFG_KVM_BASE			0x40000000
#define CPUCFG_KVM_SIZE			0x100

#define CPUCFG_KVM_SIG			(CPUCFG_KVM_BASE + 0)
#define  KVM_SIGNATURE			"KVM\0"
#define CPUCFG_KVM_FEATURE		(CPUCFG_KVM_BASE + 4)
#define  KVM_FEATURE_IPI		BIT(1)

#ifndef __ASSEMBLY__

/* CSR */
#define csr_read32(reg) __csrrd_w(reg)
#define csr_read64(reg) __csrrd_d(reg)
#define csr_write32(val, reg) __csrwr_w(val, reg)
#define csr_write64(val, reg) __csrwr_d(val, reg)
#define csr_xchg32(val, mask, reg) __csrxchg_w(val, mask, reg)
#define csr_xchg64(val, mask, reg) __csrxchg_d(val, mask, reg)

/* IOCSR */
#define iocsr_read32(reg) __iocsrrd_w(reg)
#define iocsr_read64(reg) __iocsrrd_d(reg)
#define iocsr_write32(val, reg) __iocsrwr_w(val, reg)
#define iocsr_write64(val, reg) __iocsrwr_d(val, reg)

#endif /* !__ASSEMBLY__ */

/* CSR register number */

/* Basic CSR registers */
#define LOONGARCH_CSR_CRMD		0x0	/* Current mode info */
#define  CSR_CRMD_WE_SHIFT		9
#define  CSR_CRMD_WE			(_ULCAST_(0x1) << CSR_CRMD_WE_SHIFT)
#define  CSR_CRMD_DACM_SHIFT		7
#define  CSR_CRMD_DACM_WIDTH		2
#define  CSR_CRMD_DACM			(_ULCAST_(0x3) << CSR_CRMD_DACM_SHIFT)
#define  CSR_CRMD_DACF_SHIFT		5
#define  CSR_CRMD_DACF_WIDTH		2
#define  CSR_CRMD_DACF			(_ULCAST_(0x3) << CSR_CRMD_DACF_SHIFT)
#define  CSR_CRMD_PG_SHIFT		4
#define  CSR_CRMD_PG			(_ULCAST_(0x1) << CSR_CRMD_PG_SHIFT)
#define  CSR_CRMD_DA_SHIFT		3
#define  CSR_CRMD_DA			(_ULCAST_(0x1) << CSR_CRMD_DA_SHIFT)
#define  CSR_CRMD_IE_SHIFT		2
#define  CSR_CRMD_IE			(_ULCAST_(0x1) << CSR_CRMD_IE_SHIFT)
#define  CSR_CRMD_PLV_SHIFT		0
#define  CSR_CRMD_PLV_WIDTH		2
#define  CSR_CRMD_PLV			(_ULCAST_(0x3) << CSR_CRMD_PLV_SHIFT)

#define PLV_KERN			0
#define PLV_USER			3
#define PLV_MASK			0x3

#define LOONGARCH_CSR_PRMD		0x1	/* Prev-exception mode info */
#define  CSR_PRMD_PWE_SHIFT		3
#define  CSR_PRMD_PWE			(_ULCAST_(0x1) << CSR_PRMD_PWE_SHIFT)
#define  CSR_PRMD_PIE_SHIFT		2
#define  CSR_PRMD_PIE			(_ULCAST_(0x1) << CSR_PRMD_PIE_SHIFT)
#define  CSR_PRMD_PPLV_SHIFT		0
#define  CSR_PRMD_PPLV_WIDTH		2
#define  CSR_PRMD_PPLV			(_ULCAST_(0x3) << CSR_PRMD_PPLV_SHIFT)

#define LOONGARCH_CSR_EUEN		0x2	/* Extended unit enable */
#define  CSR_EUEN_LBTEN_SHIFT		3
#define  CSR_EUEN_LBTEN			(_ULCAST_(0x1) << CSR_EUEN_LBTEN_SHIFT)
#define  CSR_EUEN_LASXEN_SHIFT		2
#define  CSR_EUEN_LASXEN		(_ULCAST_(0x1) << CSR_EUEN_LASXEN_SHIFT)
#define  CSR_EUEN_LSXEN_SHIFT		1
#define  CSR_EUEN_LSXEN			(_ULCAST_(0x1) << CSR_EUEN_LSXEN_SHIFT)
#define  CSR_EUEN_FPEN_SHIFT		0
#define  CSR_EUEN_FPEN			(_ULCAST_(0x1) << CSR_EUEN_FPEN_SHIFT)

#define LOONGARCH_CSR_MISC		0x3	/* Misc config */

#define LOONGARCH_CSR_ECFG		0x4	/* Exception config */
#define  CSR_ECFG_VS_SHIFT		16
#define  CSR_ECFG_VS_WIDTH		3
#define  CSR_ECFG_VS_SHIFT_END		(CSR_ECFG_VS_SHIFT + CSR_ECFG_VS_WIDTH - 1)
#define  CSR_ECFG_VS			(_ULCAST_(0x7) << CSR_ECFG_VS_SHIFT)
#define  CSR_ECFG_IM_SHIFT		0
#define  CSR_ECFG_IM_WIDTH		14
#define  CSR_ECFG_IM			(_ULCAST_(0x3fff) << CSR_ECFG_IM_SHIFT)

#define LOONGARCH_CSR_ESTAT		0x5	/* Exception status */
#define  CSR_ESTAT_ESUBCODE_SHIFT	22
#define  CSR_ESTAT_ESUBCODE_WIDTH	9
#define  CSR_ESTAT_ESUBCODE		(_ULCAST_(0x1ff) << CSR_ESTAT_ESUBCODE_SHIFT)
#define  CSR_ESTAT_EXC_SHIFT		16
#define  CSR_ESTAT_EXC_WIDTH		6
#define  CSR_ESTAT_EXC			(_ULCAST_(0x3f) << CSR_ESTAT_EXC_SHIFT)
#define  CSR_ESTAT_IS_SHIFT		0
#define  CSR_ESTAT_IS_WIDTH		14
#define  CSR_ESTAT_IS			(_ULCAST_(0x3fff) << CSR_ESTAT_IS_SHIFT)

#define LOONGARCH_CSR_ERA		0x6	/* ERA */

#define LOONGARCH_CSR_BADV		0x7	/* Bad virtual address */

#define LOONGARCH_CSR_BADI		0x8	/* Bad instruction */

#define LOONGARCH_CSR_EENTRY		0xc	/* Exception entry */

/* TLB related CSR registers */
#define LOONGARCH_CSR_TLBIDX		0x10	/* TLB Index, EHINV, PageSize, NP */
#define  CSR_TLBIDX_EHINV_SHIFT		31
#define  CSR_TLBIDX_EHINV		(_ULCAST_(1) << CSR_TLBIDX_EHINV_SHIFT)
#define  CSR_TLBIDX_PS_SHIFT		24
#define  CSR_TLBIDX_PS_WIDTH		6
#define  CSR_TLBIDX_PS			(_ULCAST_(0x3f) << CSR_TLBIDX_PS_SHIFT)
#define  CSR_TLBIDX_IDX_SHIFT		0
#define  CSR_TLBIDX_IDX_WIDTH		12
#define  CSR_TLBIDX_IDX			(_ULCAST_(0xfff) << CSR_TLBIDX_IDX_SHIFT)
#define  CSR_TLBIDX_SIZEM		0x3f000000
#define  CSR_TLBIDX_SIZE		CSR_TLBIDX_PS_SHIFT
#define  CSR_TLBIDX_IDXM		0xfff
#define  CSR_INVALID_ENTRY(e)		(CSR_TLBIDX_EHINV | e)

#define LOONGARCH_CSR_TLBEHI		0x11	/* TLB EntryHi */

#define LOONGARCH_CSR_TLBELO0		0x12	/* TLB EntryLo0 */
#define  CSR_TLBLO0_RPLV_SHIFT		63
#define  CSR_TLBLO0_RPLV		(_ULCAST_(0x1) << CSR_TLBLO0_RPLV_SHIFT)
#define  CSR_TLBLO0_NX_SHIFT		62
#define  CSR_TLBLO0_NX			(_ULCAST_(0x1) << CSR_TLBLO0_NX_SHIFT)
#define  CSR_TLBLO0_NR_SHIFT		61
#define  CSR_TLBLO0_NR			(_ULCAST_(0x1) << CSR_TLBLO0_NR_SHIFT)
#define  CSR_TLBLO0_PFN_SHIFT		12
#define  CSR_TLBLO0_PFN_WIDTH		36
#define  CSR_TLBLO0_PFN			(_ULCAST_(0xfffffffff) << CSR_TLBLO0_PFN_SHIFT)
#define  CSR_TLBLO0_GLOBAL_SHIFT	6
#define  CSR_TLBLO0_GLOBAL		(_ULCAST_(0x1) << CSR_TLBLO0_GLOBAL_SHIFT)
#define  CSR_TLBLO0_CCA_SHIFT		4
#define  CSR_TLBLO0_CCA_WIDTH		2
#define  CSR_TLBLO0_CCA			(_ULCAST_(0x3) << CSR_TLBLO0_CCA_SHIFT)
#define  CSR_TLBLO0_PLV_SHIFT		2
#define  CSR_TLBLO0_PLV_WIDTH		2
#define  CSR_TLBLO0_PLV			(_ULCAST_(0x3) << CSR_TLBLO0_PLV_SHIFT)
#define  CSR_TLBLO0_WE_SHIFT		1
#define  CSR_TLBLO0_WE			(_ULCAST_(0x1) << CSR_TLBLO0_WE_SHIFT)
#define  CSR_TLBLO0_V_SHIFT		0
#define  CSR_TLBLO0_V			(_ULCAST_(0x1) << CSR_TLBLO0_V_SHIFT)

#define LOONGARCH_CSR_TLBELO1		0x13	/* TLB EntryLo1 */
#define  CSR_TLBLO1_RPLV_SHIFT		63
#define  CSR_TLBLO1_RPLV		(_ULCAST_(0x1) << CSR_TLBLO1_RPLV_SHIFT)
#define  CSR_TLBLO1_NX_SHIFT		62
#define  CSR_TLBLO1_NX			(_ULCAST_(0x1) << CSR_TLBLO1_NX_SHIFT)
#define  CSR_TLBLO1_NR_SHIFT		61
#define  CSR_TLBLO1_NR			(_ULCAST_(0x1) << CSR_TLBLO1_NR_SHIFT)
#define  CSR_TLBLO1_PFN_SHIFT		12
#define  CSR_TLBLO1_PFN_WIDTH		36
#define  CSR_TLBLO1_PFN			(_ULCAST_(0xfffffffff) << CSR_TLBLO1_PFN_SHIFT)
#define  CSR_TLBLO1_GLOBAL_SHIFT	6
#define  CSR_TLBLO1_GLOBAL		(_ULCAST_(0x1) << CSR_TLBLO1_GLOBAL_SHIFT)
#define  CSR_TLBLO1_CCA_SHIFT		4
#define  CSR_TLBLO1_CCA_WIDTH		2
#define  CSR_TLBLO1_CCA			(_ULCAST_(0x3) << CSR_TLBLO1_CCA_SHIFT)
#define  CSR_TLBLO1_PLV_SHIFT		2
#define  CSR_TLBLO1_PLV_WIDTH		2
#define  CSR_TLBLO1_PLV			(_ULCAST_(0x3) << CSR_TLBLO1_PLV_SHIFT)
#define  CSR_TLBLO1_WE_SHIFT		1
#define  CSR_TLBLO1_WE			(_ULCAST_(0x1) << CSR_TLBLO1_WE_SHIFT)
#define  CSR_TLBLO1_V_SHIFT		0
#define  CSR_TLBLO1_V			(_ULCAST_(0x1) << CSR_TLBLO1_V_SHIFT)

#define LOONGARCH_CSR_GTLBC		0x15	/* Guest TLB control */
#define  CSR_GTLBC_TGID_SHIFT		16
#define  CSR_GTLBC_TGID_WIDTH		8
#define  CSR_GTLBC_TGID_SHIFT_END	(CSR_GTLBC_TGID_SHIFT + CSR_GTLBC_TGID_WIDTH - 1)
#define  CSR_GTLBC_TGID			(_ULCAST_(0xff) << CSR_GTLBC_TGID_SHIFT)
#define  CSR_GTLBC_TOTI_SHIFT		13
#define  CSR_GTLBC_TOTI			(_ULCAST_(0x1) << CSR_GTLBC_TOTI_SHIFT)
#define  CSR_GTLBC_USETGID_SHIFT	12
#define  CSR_GTLBC_USETGID		(_ULCAST_(0x1) << CSR_GTLBC_USETGID_SHIFT)
#define  CSR_GTLBC_GMTLBSZ_SHIFT	0
#define  CSR_GTLBC_GMTLBSZ_WIDTH	6
#define  CSR_GTLBC_GMTLBSZ		(_ULCAST_(0x3f) << CSR_GTLBC_GMTLBSZ_SHIFT)

#define LOONGARCH_CSR_TRGP		0x16	/* TLBR read guest info */
#define  CSR_TRGP_RID_SHIFT		16
#define  CSR_TRGP_RID_WIDTH		8
#define  CSR_TRGP_RID			(_ULCAST_(0xff) << CSR_TRGP_RID_SHIFT)
#define  CSR_TRGP_GTLB_SHIFT		0
#define  CSR_TRGP_GTLB			(1 << CSR_TRGP_GTLB_SHIFT)

#define LOONGARCH_CSR_ASID		0x18	/* ASID */
#define  CSR_ASID_BIT_SHIFT		16	/* ASIDBits */
#define  CSR_ASID_BIT_WIDTH		8
#define  CSR_ASID_BIT			(_ULCAST_(0xff) << CSR_ASID_BIT_SHIFT)
#define  CSR_ASID_ASID_SHIFT		0
#define  CSR_ASID_ASID_WIDTH		10
#define  CSR_ASID_ASID			(_ULCAST_(0x3ff) << CSR_ASID_ASID_SHIFT)

#define LOONGARCH_CSR_PGDL		0x19	/* Page table base address when VA[VALEN-1] = 0 */

#define LOONGARCH_CSR_PGDH		0x1a	/* Page table base address when VA[VALEN-1] = 1 */

#define LOONGARCH_CSR_PGD		0x1b	/* Page table base */

#define LOONGARCH_CSR_PWCTL0		0x1c	/* PWCtl0 */
#define  CSR_PWCTL0_PTEW_SHIFT		30
#define  CSR_PWCTL0_PTEW_WIDTH		2
#define  CSR_PWCTL0_PTEW		(_ULCAST_(0x3) << CSR_PWCTL0_PTEW_SHIFT)
#define  CSR_PWCTL0_DIR1WIDTH_SHIFT	25
#define  CSR_PWCTL0_DIR1WIDTH_WIDTH	5
#define  CSR_PWCTL0_DIR1WIDTH		(_ULCAST_(0x1f) << CSR_PWCTL0_DIR1WIDTH_SHIFT)
#define  CSR_PWCTL0_DIR1BASE_SHIFT	20
#define  CSR_PWCTL0_DIR1BASE_WIDTH	5
#define  CSR_PWCTL0_DIR1BASE		(_ULCAST_(0x1f) << CSR_PWCTL0_DIR1BASE_SHIFT)
#define  CSR_PWCTL0_DIR0WIDTH_SHIFT	15
#define  CSR_PWCTL0_DIR0WIDTH_WIDTH	5
#define  CSR_PWCTL0_DIR0WIDTH		(_ULCAST_(0x1f) << CSR_PWCTL0_DIR0WIDTH_SHIFT)
#define  CSR_PWCTL0_DIR0BASE_SHIFT	10
#define  CSR_PWCTL0_DIR0BASE_WIDTH	5
#define  CSR_PWCTL0_DIR0BASE		(_ULCAST_(0x1f) << CSR_PWCTL0_DIR0BASE_SHIFT)
#define  CSR_PWCTL0_PTWIDTH_SHIFT	5
#define  CSR_PWCTL0_PTWIDTH_WIDTH	5
#define  CSR_PWCTL0_PTWIDTH		(_ULCAST_(0x1f) << CSR_PWCTL0_PTWIDTH_SHIFT)
#define  CSR_PWCTL0_PTBASE_SHIFT	0
#define  CSR_PWCTL0_PTBASE_WIDTH	5
#define  CSR_PWCTL0_PTBASE		(_ULCAST_(0x1f) << CSR_PWCTL0_PTBASE_SHIFT)

#define LOONGARCH_CSR_PWCTL1		0x1d	/* PWCtl1 */
#define  CSR_PWCTL1_PTW_SHIFT		24
#define  CSR_PWCTL1_PTW_WIDTH		1
#define  CSR_PWCTL1_PTW			(_ULCAST_(0x1) << CSR_PWCTL1_PTW_SHIFT)
#define  CSR_PWCTL1_DIR3WIDTH_SHIFT	18
#define  CSR_PWCTL1_DIR3WIDTH_WIDTH	5
#define  CSR_PWCTL1_DIR3WIDTH		(_ULCAST_(0x1f) << CSR_PWCTL1_DIR3WIDTH_SHIFT)
#define  CSR_PWCTL1_DIR3BASE_SHIFT	12
#define  CSR_PWCTL1_DIR3BASE_WIDTH	5
#define  CSR_PWCTL1_DIR3BASE		(_ULCAST_(0x1f) << CSR_PWCTL0_DIR3BASE_SHIFT)
#define  CSR_PWCTL1_DIR2WIDTH_SHIFT	6
#define  CSR_PWCTL1_DIR2WIDTH_WIDTH	5
#define  CSR_PWCTL1_DIR2WIDTH		(_ULCAST_(0x1f) << CSR_PWCTL1_DIR2WIDTH_SHIFT)
#define  CSR_PWCTL1_DIR2BASE_SHIFT	0
#define  CSR_PWCTL1_DIR2BASE_WIDTH	5
#define  CSR_PWCTL1_DIR2BASE		(_ULCAST_(0x1f) << CSR_PWCTL0_DIR2BASE_SHIFT)

#define LOONGARCH_CSR_STLBPGSIZE	0x1e
#define  CSR_STLBPGSIZE_PS_WIDTH	6
#define  CSR_STLBPGSIZE_PS		(_ULCAST_(0x3f))

#define LOONGARCH_CSR_RVACFG		0x1f
#define  CSR_RVACFG_RDVA_WIDTH		4
#define  CSR_RVACFG_RDVA		(_ULCAST_(0xf))

/* Config CSR registers */
#define LOONGARCH_CSR_CPUID		0x20	/* CPU core id */
#define  CSR_CPUID_COREID_WIDTH		9
#define  CSR_CPUID_COREID		_ULCAST_(0x1ff)

#define LOONGARCH_CSR_PRCFG1		0x21	/* Config1 */
#define  CSR_CONF1_VSMAX_SHIFT		12
#define  CSR_CONF1_VSMAX_WIDTH		3
#define  CSR_CONF1_VSMAX		(_ULCAST_(7) << CSR_CONF1_VSMAX_SHIFT)
#define  CSR_CONF1_TMRBITS_SHIFT	4
#define  CSR_CONF1_TMRBITS_WIDTH	8
#define  CSR_CONF1_TMRBITS		(_ULCAST_(0xff) << CSR_CONF1_TMRBITS_SHIFT)
#define  CSR_CONF1_KSNUM_WIDTH		4
#define  CSR_CONF1_KSNUM		_ULCAST_(0xf)

#define LOONGARCH_CSR_PRCFG2		0x22	/* Config2 */
#define  CSR_CONF2_PGMASK_SUPP		0x3ffff000

#define LOONGARCH_CSR_PRCFG3		0x23	/* Config3 */
#define  CSR_CONF3_STLBIDX_SHIFT	20
#define  CSR_CONF3_STLBIDX_WIDTH	6
#define  CSR_CONF3_STLBIDX		(_ULCAST_(0x3f) << CSR_CONF3_STLBIDX_SHIFT)
#define  CSR_CONF3_STLBWAYS_SHIFT	12
#define  CSR_CONF3_STLBWAYS_WIDTH	8
#define  CSR_CONF3_STLBWAYS		(_ULCAST_(0xff) << CSR_CONF3_STLBWAYS_SHIFT)
#define  CSR_CONF3_MTLBSIZE_SHIFT	4
#define  CSR_CONF3_MTLBSIZE_WIDTH	8
#define  CSR_CONF3_MTLBSIZE		(_ULCAST_(0xff) << CSR_CONF3_MTLBSIZE_SHIFT)
#define  CSR_CONF3_TLBTYPE_SHIFT	0
#define  CSR_CONF3_TLBTYPE_WIDTH	4
#define  CSR_CONF3_TLBTYPE		(_ULCAST_(0xf) << CSR_CONF3_TLBTYPE_SHIFT)

/* KSave registers */
#define LOONGARCH_CSR_KS0		0x30
#define LOONGARCH_CSR_KS1		0x31
#define LOONGARCH_CSR_KS2		0x32
#define LOONGARCH_CSR_KS3		0x33
#define LOONGARCH_CSR_KS4		0x34
#define LOONGARCH_CSR_KS5		0x35
#define LOONGARCH_CSR_KS6		0x36
#define LOONGARCH_CSR_KS7		0x37
#define LOONGARCH_CSR_KS8		0x38

/* Exception allocated KS0, KS1 and KS2 statically */
#define EXCEPTION_KS0			LOONGARCH_CSR_KS0
#define EXCEPTION_KS1			LOONGARCH_CSR_KS1
#define EXCEPTION_KS2			LOONGARCH_CSR_KS2
#define EXC_KSAVE_MASK			(1 << 0 | 1 << 1 | 1 << 2)

/* Percpu-data base allocated KS3 statically */
#define PERCPU_BASE_KS			LOONGARCH_CSR_KS3
#define PERCPU_KSAVE_MASK		(1 << 3)

/* KVM allocated KS4 and KS5 statically */
#define KVM_VCPU_KS			LOONGARCH_CSR_KS4
#define KVM_TEMP_KS			LOONGARCH_CSR_KS5
#define KVM_KSAVE_MASK			(1 << 4 | 1 << 5)

/* Timer registers */
#define LOONGARCH_CSR_TMID		0x40	/* Timer ID */

#define LOONGARCH_CSR_TCFG		0x41	/* Timer config */
#define  CSR_TCFG_VAL_SHIFT		2
#define	 CSR_TCFG_VAL_WIDTH		48
#define  CSR_TCFG_VAL			(_ULCAST_(0x3fffffffffff) << CSR_TCFG_VAL_SHIFT)
#define  CSR_TCFG_PERIOD_SHIFT		1
#define  CSR_TCFG_PERIOD		(_ULCAST_(0x1) << CSR_TCFG_PERIOD_SHIFT)
#define  CSR_TCFG_EN			(_ULCAST_(0x1))

#define LOONGARCH_CSR_TVAL		0x42	/* Timer value */

#define LOONGARCH_CSR_CNTC		0x43	/* Timer offset */

#define LOONGARCH_CSR_TINTCLR		0x44	/* Timer interrupt clear */
#define  CSR_TINTCLR_TI_SHIFT		0
#define  CSR_TINTCLR_TI			(1 << CSR_TINTCLR_TI_SHIFT)

/* Guest registers */
#define LOONGARCH_CSR_GSTAT		0x50	/* Guest status */
#define  CSR_GSTAT_GID_SHIFT		16
#define  CSR_GSTAT_GID_WIDTH		8
#define  CSR_GSTAT_GID_SHIFT_END	(CSR_GSTAT_GID_SHIFT + CSR_GSTAT_GID_WIDTH - 1)
#define  CSR_GSTAT_GID			(_ULCAST_(0xff) << CSR_GSTAT_GID_SHIFT)
#define  CSR_GSTAT_GIDBIT_SHIFT		4
#define  CSR_GSTAT_GIDBIT_WIDTH		6
#define  CSR_GSTAT_GIDBIT		(_ULCAST_(0x3f) << CSR_GSTAT_GIDBIT_SHIFT)
#define  CSR_GSTAT_PVM_SHIFT		1
#define  CSR_GSTAT_PVM			(_ULCAST_(0x1) << CSR_GSTAT_PVM_SHIFT)
#define  CSR_GSTAT_VM_SHIFT		0
#define  CSR_GSTAT_VM			(_ULCAST_(0x1) << CSR_GSTAT_VM_SHIFT)

#define LOONGARCH_CSR_GCFG		0x51	/* Guest config */
#define  CSR_GCFG_GPERF_SHIFT		24
#define  CSR_GCFG_GPERF_WIDTH		3
#define  CSR_GCFG_GPERF			(_ULCAST_(0x7) << CSR_GCFG_GPERF_SHIFT)
#define  CSR_GCFG_GCI_SHIFT		20
#define  CSR_GCFG_GCI_WIDTH		2
#define  CSR_GCFG_GCI			(_ULCAST_(0x3) << CSR_GCFG_GCI_SHIFT)
#define  CSR_GCFG_GCI_ALL		(_ULCAST_(0x0) << CSR_GCFG_GCI_SHIFT)
#define  CSR_GCFG_GCI_HIT		(_ULCAST_(0x1) << CSR_GCFG_GCI_SHIFT)
#define  CSR_GCFG_GCI_SECURE		(_ULCAST_(0x2) << CSR_GCFG_GCI_SHIFT)
#define  CSR_GCFG_GCIP_SHIFT		16
#define  CSR_GCFG_GCIP			(_ULCAST_(0xf) << CSR_GCFG_GCIP_SHIFT)
#define  CSR_GCFG_GCIP_ALL		(_ULCAST_(0x1) << CSR_GCFG_GCIP_SHIFT)
#define  CSR_GCFG_GCIP_HIT		(_ULCAST_(0x1) << (CSR_GCFG_GCIP_SHIFT + 1))
#define  CSR_GCFG_GCIP_SECURE		(_ULCAST_(0x1) << (CSR_GCFG_GCIP_SHIFT + 2))
#define  CSR_GCFG_TORU_SHIFT		15
#define  CSR_GCFG_TORU			(_ULCAST_(0x1) << CSR_GCFG_TORU_SHIFT)
#define  CSR_GCFG_TORUP_SHIFT		14
#define  CSR_GCFG_TORUP			(_ULCAST_(0x1) << CSR_GCFG_TORUP_SHIFT)
#define  CSR_GCFG_TOP_SHIFT		13
#define  CSR_GCFG_TOP			(_ULCAST_(0x1) << CSR_GCFG_TOP_SHIFT)
#define  CSR_GCFG_TOPP_SHIFT		12
#define  CSR_GCFG_TOPP			(_ULCAST_(0x1) << CSR_GCFG_TOPP_SHIFT)
#define  CSR_GCFG_TOE_SHIFT		11
#define  CSR_GCFG_TOE			(_ULCAST_(0x1) << CSR_GCFG_TOE_SHIFT)
#define  CSR_GCFG_TOEP_SHIFT		10
#define  CSR_GCFG_TOEP			(_ULCAST_(0x1) << CSR_GCFG_TOEP_SHIFT)
#define  CSR_GCFG_TIT_SHIFT		9
#define  CSR_GCFG_TIT			(_ULCAST_(0x1) << CSR_GCFG_TIT_SHIFT)
#define  CSR_GCFG_TITP_SHIFT		8
#define  CSR_GCFG_TITP			(_ULCAST_(0x1) << CSR_GCFG_TITP_SHIFT)
#define  CSR_GCFG_SIT_SHIFT		7
#define  CSR_GCFG_SIT			(_ULCAST_(0x1) << CSR_GCFG_SIT_SHIFT)
#define  CSR_GCFG_SITP_SHIFT		6
#define  CSR_GCFG_SITP			(_ULCAST_(0x1) << CSR_GCFG_SITP_SHIFT)
#define  CSR_GCFG_MATC_SHITF		4
#define  CSR_GCFG_MATC_WIDTH		2
#define  CSR_GCFG_MATC_MASK		(_ULCAST_(0x3) << CSR_GCFG_MATC_SHITF)
#define  CSR_GCFG_MATC_GUEST		(_ULCAST_(0x0) << CSR_GCFG_MATC_SHITF)
#define  CSR_GCFG_MATC_ROOT		(_ULCAST_(0x1) << CSR_GCFG_MATC_SHITF)
#define  CSR_GCFG_MATC_NEST		(_ULCAST_(0x2) << CSR_GCFG_MATC_SHITF)
#define  CSR_GCFG_MATP_NEST_SHIFT	2
#define  CSR_GCFG_MATP_NEST		(_ULCAST_(0x1) << CSR_GCFG_MATP_NEST_SHIFT)
#define  CSR_GCFG_MATP_ROOT_SHIFT	1
#define  CSR_GCFG_MATP_ROOT		(_ULCAST_(0x1) << CSR_GCFG_MATP_ROOT_SHIFT)
#define  CSR_GCFG_MATP_GUEST_SHIFT	0
#define  CSR_GCFG_MATP_GUEST		(_ULCAST_(0x1) << CSR_GCFG_MATP_GUEST_SHIFT)

#define LOONGARCH_CSR_GINTC		0x52	/* Guest interrupt control */
#define  CSR_GINTC_HC_SHIFT		16
#define  CSR_GINTC_HC_WIDTH		8
#define  CSR_GINTC_HC			(_ULCAST_(0xff) << CSR_GINTC_HC_SHIFT)
#define  CSR_GINTC_PIP_SHIFT		8
#define  CSR_GINTC_PIP_WIDTH		8
#define  CSR_GINTC_PIP			(_ULCAST_(0xff) << CSR_GINTC_PIP_SHIFT)
#define  CSR_GINTC_VIP_SHIFT		0
#define  CSR_GINTC_VIP_WIDTH		8
#define  CSR_GINTC_VIP			(_ULCAST_(0xff))

#define LOONGARCH_CSR_GCNTC		0x53	/* Guest timer offset */

/* LLBCTL register */
#define LOONGARCH_CSR_LLBCTL		0x60	/* LLBit control */
#define  CSR_LLBCTL_ROLLB_SHIFT		0
#define  CSR_LLBCTL_ROLLB		(_ULCAST_(1) << CSR_LLBCTL_ROLLB_SHIFT)
#define  CSR_LLBCTL_WCLLB_SHIFT		1
#define  CSR_LLBCTL_WCLLB		(_ULCAST_(1) << CSR_LLBCTL_WCLLB_SHIFT)
#define  CSR_LLBCTL_KLO_SHIFT		2
#define  CSR_LLBCTL_KLO			(_ULCAST_(1) << CSR_LLBCTL_KLO_SHIFT)

/* Implement dependent */
#define LOONGARCH_CSR_IMPCTL1		0x80	/* Loongson config1 */
#define  CSR_MISPEC_SHIFT		20
#define  CSR_MISPEC_WIDTH		8
#define  CSR_MISPEC			(_ULCAST_(0xff) << CSR_MISPEC_SHIFT)
#define  CSR_SSEN_SHIFT			18
#define  CSR_SSEN			(_ULCAST_(1) << CSR_SSEN_SHIFT)
#define  CSR_SCRAND_SHIFT		17
#define  CSR_SCRAND			(_ULCAST_(1) << CSR_SCRAND_SHIFT)
#define  CSR_LLEXCL_SHIFT		16
#define  CSR_LLEXCL			(_ULCAST_(1) << CSR_LLEXCL_SHIFT)
#define  CSR_DISVC_SHIFT		15
#define  CSR_DISVC			(_ULCAST_(1) << CSR_DISVC_SHIFT)
#define  CSR_VCLRU_SHIFT		14
#define  CSR_VCLRU			(_ULCAST_(1) << CSR_VCLRU_SHIFT)
#define  CSR_DCLRU_SHIFT		13
#define  CSR_DCLRU			(_ULCAST_(1) << CSR_DCLRU_SHIFT)
#define  CSR_FASTLDQ_SHIFT		12
#define  CSR_FASTLDQ			(_ULCAST_(1) << CSR_FASTLDQ_SHIFT)
#define  CSR_USERCAC_SHIFT		11
#define  CSR_USERCAC			(_ULCAST_(1) << CSR_USERCAC_SHIFT)
#define  CSR_ANTI_MISPEC_SHIFT		10
#define  CSR_ANTI_MISPEC		(_ULCAST_(1) << CSR_ANTI_MISPEC_SHIFT)
#define  CSR_AUTO_FLUSHSFB_SHIFT	9
#define  CSR_AUTO_FLUSHSFB		(_ULCAST_(1) << CSR_AUTO_FLUSHSFB_SHIFT)
#define  CSR_STFILL_SHIFT		8
#define  CSR_STFILL			(_ULCAST_(1) << CSR_STFILL_SHIFT)
#define  CSR_LIFEP_SHIFT		7
#define  CSR_LIFEP			(_ULCAST_(1) << CSR_LIFEP_SHIFT)
#define  CSR_LLSYNC_SHIFT		6
#define  CSR_LLSYNC			(_ULCAST_(1) << CSR_LLSYNC_SHIFT)
#define  CSR_BRBTDIS_SHIFT		5
#define  CSR_BRBTDIS			(_ULCAST_(1) << CSR_BRBTDIS_SHIFT)
#define  CSR_RASDIS_SHIFT		4
#define  CSR_RASDIS			(_ULCAST_(1) << CSR_RASDIS_SHIFT)
#define  CSR_STPRE_SHIFT		2
#define  CSR_STPRE_WIDTH		2
#define  CSR_STPRE			(_ULCAST_(3) << CSR_STPRE_SHIFT)
#define  CSR_INSTPRE_SHIFT		1
#define  CSR_INSTPRE			(_ULCAST_(1) << CSR_INSTPRE_SHIFT)
#define  CSR_DATAPRE_SHIFT		0
#define  CSR_DATAPRE			(_ULCAST_(1) << CSR_DATAPRE_SHIFT)

#define LOONGARCH_CSR_IMPCTL2		0x81	/* Loongson config2 */
#define  CSR_FLUSH_MTLB_SHIFT		0
#define  CSR_FLUSH_MTLB			(_ULCAST_(1) << CSR_FLUSH_MTLB_SHIFT)
#define  CSR_FLUSH_STLB_SHIFT		1
#define  CSR_FLUSH_STLB			(_ULCAST_(1) << CSR_FLUSH_STLB_SHIFT)
#define  CSR_FLUSH_DTLB_SHIFT		2
#define  CSR_FLUSH_DTLB			(_ULCAST_(1) << CSR_FLUSH_DTLB_SHIFT)
#define  CSR_FLUSH_ITLB_SHIFT		3
#define  CSR_FLUSH_ITLB			(_ULCAST_(1) << CSR_FLUSH_ITLB_SHIFT)
#define  CSR_FLUSH_BTAC_SHIFT		4
#define  CSR_FLUSH_BTAC			(_ULCAST_(1) << CSR_FLUSH_BTAC_SHIFT)

#define LOONGARCH_CSR_GNMI		0x82

/* TLB Refill registers */
#define LOONGARCH_CSR_TLBRENTRY		0x88	/* TLB refill exception entry */
#define LOONGARCH_CSR_TLBRBADV		0x89	/* TLB refill badvaddr */
#define LOONGARCH_CSR_TLBRERA		0x8a	/* TLB refill ERA */
#define LOONGARCH_CSR_TLBRSAVE		0x8b	/* KSave for TLB refill exception */
#define LOONGARCH_CSR_TLBRELO0		0x8c	/* TLB refill entrylo0 */
#define LOONGARCH_CSR_TLBRELO1		0x8d	/* TLB refill entrylo1 */
#define LOONGARCH_CSR_TLBREHI		0x8e	/* TLB refill entryhi */
#define  CSR_TLBREHI_PS_SHIFT		0
#define  CSR_TLBREHI_PS			(_ULCAST_(0x3f) << CSR_TLBREHI_PS_SHIFT)
#define LOONGARCH_CSR_TLBRPRMD		0x8f	/* TLB refill mode info */

/* Machine Error registers */
#define LOONGARCH_CSR_MERRCTL		0x90	/* MERRCTL */
#define LOONGARCH_CSR_MERRINFO1		0x91	/* MError info1 */
#define LOONGARCH_CSR_MERRINFO2		0x92	/* MError info2 */
#define LOONGARCH_CSR_MERRENTRY		0x93	/* MError exception entry */
#define LOONGARCH_CSR_MERRERA		0x94	/* MError exception ERA */
#define LOONGARCH_CSR_MERRSAVE		0x95	/* KSave for machine error exception */

#define LOONGARCH_CSR_CTAG		0x98	/* TagLo + TagHi */

#define LOONGARCH_CSR_PRID		0xc0

/* Shadow MCSR : 0xc0 ~ 0xff */
#define LOONGARCH_CSR_MCSR0		0xc0	/* CPUCFG0 and CPUCFG1 */
#define  MCSR0_INT_IMPL_SHIFT		58
#define  MCSR0_INT_IMPL			0
#define  MCSR0_IOCSR_BRD_SHIFT		57
#define  MCSR0_IOCSR_BRD		(_ULCAST_(1) << MCSR0_IOCSR_BRD_SHIFT)
#define  MCSR0_HUGEPG_SHIFT		56
#define  MCSR0_HUGEPG			(_ULCAST_(1) << MCSR0_HUGEPG_SHIFT)
#define  MCSR0_RPLMTLB_SHIFT		55
#define  MCSR0_RPLMTLB			(_ULCAST_(1) << MCSR0_RPLMTLB_SHIFT)
#define  MCSR0_EP_SHIFT			54
#define  MCSR0_EP			(_ULCAST_(1) << MCSR0_EP_SHIFT)
#define  MCSR0_RI_SHIFT			53
#define  MCSR0_RI			(_ULCAST_(1) << MCSR0_RI_SHIFT)
#define  MCSR0_UAL_SHIFT		52
#define  MCSR0_UAL			(_ULCAST_(1) << MCSR0_UAL_SHIFT)
#define  MCSR0_VABIT_SHIFT		44
#define  MCSR0_VABIT_WIDTH		8
#define  MCSR0_VABIT			(_ULCAST_(0xff) << MCSR0_VABIT_SHIFT)
#define  VABIT_DEFAULT			0x2f
#define  MCSR0_PABIT_SHIFT		36
#define  MCSR0_PABIT_WIDTH		8
#define  MCSR0_PABIT			(_ULCAST_(0xff) << MCSR0_PABIT_SHIFT)
#define  PABIT_DEFAULT			0x2f
#define  MCSR0_IOCSR_SHIFT		35
#define  MCSR0_IOCSR			(_ULCAST_(1) << MCSR0_IOCSR_SHIFT)
#define  MCSR0_PAGING_SHIFT		34
#define  MCSR0_PAGING			(_ULCAST_(1) << MCSR0_PAGING_SHIFT)
#define  MCSR0_GR64_SHIFT		33
#define  MCSR0_GR64			(_ULCAST_(1) << MCSR0_GR64_SHIFT)
#define  GR64_DEFAULT			1
#define  MCSR0_GR32_SHIFT		32
#define  MCSR0_GR32			(_ULCAST_(1) << MCSR0_GR32_SHIFT)
#define  GR32_DEFAULT			0
#define  MCSR0_PRID_WIDTH		32
#define  MCSR0_PRID			0x14C010

#define LOONGARCH_CSR_MCSR1		0xc1	/* CPUCFG2 and CPUCFG3 */
#define  MCSR1_HPFOLD_SHIFT		43
#define  MCSR1_HPFOLD			(_ULCAST_(1) << MCSR1_HPFOLD_SHIFT)
#define  MCSR1_SPW_LVL_SHIFT		40
#define  MCSR1_SPW_LVL_WIDTH		3
#define  MCSR1_SPW_LVL			(_ULCAST_(7) << MCSR1_SPW_LVL_SHIFT)
#define  MCSR1_ICACHET_SHIFT		39
#define  MCSR1_ICACHET			(_ULCAST_(1) << MCSR1_ICACHET_SHIFT)
#define  MCSR1_ITLBT_SHIFT		38
#define  MCSR1_ITLBT			(_ULCAST_(1) << MCSR1_ITLBT_SHIFT)
#define  MCSR1_LLDBAR_SHIFT		37
#define  MCSR1_LLDBAR			(_ULCAST_(1) << MCSR1_LLDBAR_SHIFT)
#define  MCSR1_SCDLY_SHIFT		36
#define  MCSR1_SCDLY			(_ULCAST_(1) << MCSR1_SCDLY_SHIFT)
#define  MCSR1_LLEXC_SHIFT		35
#define  MCSR1_LLEXC			(_ULCAST_(1) << MCSR1_LLEXC_SHIFT)
#define  MCSR1_UCACC_SHIFT		34
#define  MCSR1_UCACC			(_ULCAST_(1) << MCSR1_UCACC_SHIFT)
#define  MCSR1_SFB_SHIFT		33
#define  MCSR1_SFB			(_ULCAST_(1) << MCSR1_SFB_SHIFT)
#define  MCSR1_CCDMA_SHIFT		32
#define  MCSR1_CCDMA			(_ULCAST_(1) << MCSR1_CCDMA_SHIFT)
#define  MCSR1_LAMO_SHIFT		22
#define  MCSR1_LAMO			(_ULCAST_(1) << MCSR1_LAMO_SHIFT)
#define  MCSR1_LSPW_SHIFT		21
#define  MCSR1_LSPW			(_ULCAST_(1) << MCSR1_LSPW_SHIFT)
#define  MCSR1_MIPSBT_SHIFT		20
#define  MCSR1_MIPSBT			(_ULCAST_(1) << MCSR1_MIPSBT_SHIFT)
#define  MCSR1_ARMBT_SHIFT		19
#define  MCSR1_ARMBT			(_ULCAST_(1) << MCSR1_ARMBT_SHIFT)
#define  MCSR1_X86BT_SHIFT		18
#define  MCSR1_X86BT			(_ULCAST_(1) << MCSR1_X86BT_SHIFT)
#define  MCSR1_LLFTPVERS_SHIFT		15
#define  MCSR1_LLFTPVERS_WIDTH		3
#define  MCSR1_LLFTPVERS		(_ULCAST_(7) << MCSR1_LLFTPVERS_SHIFT)
#define  MCSR1_LLFTP_SHIFT		14
#define  MCSR1_LLFTP			(_ULCAST_(1) << MCSR1_LLFTP_SHIFT)
#define  MCSR1_VZVERS_SHIFT		11
#define  MCSR1_VZVERS_WIDTH		3
#define  MCSR1_VZVERS			(_ULCAST_(7) << MCSR1_VZVERS_SHIFT)
#define  MCSR1_VZ_SHIFT			10
#define  MCSR1_VZ			(_ULCAST_(1) << MCSR1_VZ_SHIFT)
#define  MCSR1_CRYPTO_SHIFT		9
#define  MCSR1_CRYPTO			(_ULCAST_(1) << MCSR1_CRYPTO_SHIFT)
#define  MCSR1_COMPLEX_SHIFT		8
#define  MCSR1_COMPLEX			(_ULCAST_(1) << MCSR1_COMPLEX_SHIFT)
#define  MCSR1_LASX_SHIFT		7
#define  MCSR1_LASX			(_ULCAST_(1) << MCSR1_LASX_SHIFT)
#define  MCSR1_LSX_SHIFT		6
#define  MCSR1_LSX			(_ULCAST_(1) << MCSR1_LSX_SHIFT)
#define  MCSR1_FPVERS_SHIFT		3
#define  MCSR1_FPVERS_WIDTH		3
#define  MCSR1_FPVERS			(_ULCAST_(7) << MCSR1_FPVERS_SHIFT)
#define  MCSR1_FPDP_SHIFT		2
#define  MCSR1_FPDP			(_ULCAST_(1) << MCSR1_FPDP_SHIFT)
#define  MCSR1_FPSP_SHIFT		1
#define  MCSR1_FPSP			(_ULCAST_(1) << MCSR1_FPSP_SHIFT)
#define  MCSR1_FP_SHIFT			0
#define  MCSR1_FP			(_ULCAST_(1) << MCSR1_FP_SHIFT)

#define LOONGARCH_CSR_MCSR2		0xc2	/* CPUCFG4 and CPUCFG5 */
#define  MCSR2_CCDIV_SHIFT		48
#define  MCSR2_CCDIV_WIDTH		16
#define  MCSR2_CCDIV			(_ULCAST_(0xffff) << MCSR2_CCDIV_SHIFT)
#define  MCSR2_CCMUL_SHIFT		32
#define  MCSR2_CCMUL_WIDTH		16
#define  MCSR2_CCMUL			(_ULCAST_(0xffff) << MCSR2_CCMUL_SHIFT)
#define  MCSR2_CCFREQ_WIDTH		32
#define  MCSR2_CCFREQ			(_ULCAST_(0xffffffff))
#define  CCFREQ_DEFAULT			0x5f5e100	/* 100MHz */

#define LOONGARCH_CSR_MCSR3		0xc3	/* CPUCFG6 */
#define  MCSR3_UPM_SHIFT		14
#define  MCSR3_UPM			(_ULCAST_(1) << MCSR3_UPM_SHIFT)
#define  MCSR3_PMBITS_SHIFT		8
#define  MCSR3_PMBITS_WIDTH		6
#define  MCSR3_PMBITS			(_ULCAST_(0x3f) << MCSR3_PMBITS_SHIFT)
#define  PMBITS_DEFAULT			0x40
#define  MCSR3_PMNUM_SHIFT		4
#define  MCSR3_PMNUM_WIDTH		4
#define  MCSR3_PMNUM			(_ULCAST_(0xf) << MCSR3_PMNUM_SHIFT)
#define  MCSR3_PAMVER_SHIFT		1
#define  MCSR3_PAMVER_WIDTH		3
#define  MCSR3_PAMVER			(_ULCAST_(0x7) << MCSR3_PAMVER_SHIFT)
#define  MCSR3_PMP_SHIFT		0
#define  MCSR3_PMP			(_ULCAST_(1) << MCSR3_PMP_SHIFT)

#define LOONGARCH_CSR_MCSR8		0xc8	/* CPUCFG16 and CPUCFG17 */
#define  MCSR8_L1I_SIZE_SHIFT		56
#define  MCSR8_L1I_SIZE_WIDTH		7
#define  MCSR8_L1I_SIZE			(_ULCAST_(0x7f) << MCSR8_L1I_SIZE_SHIFT)
#define  MCSR8_L1I_IDX_SHIFT		48
#define  MCSR8_L1I_IDX_WIDTH		8
#define  MCSR8_L1I_IDX			(_ULCAST_(0xff) << MCSR8_L1I_IDX_SHIFT)
#define  MCSR8_L1I_WAY_SHIFT		32
#define  MCSR8_L1I_WAY_WIDTH		16
#define  MCSR8_L1I_WAY			(_ULCAST_(0xffff) << MCSR8_L1I_WAY_SHIFT)
#define  MCSR8_L3DINCL_SHIFT		16
#define  MCSR8_L3DINCL			(_ULCAST_(1) << MCSR8_L3DINCL_SHIFT)
#define  MCSR8_L3DPRIV_SHIFT		15
#define  MCSR8_L3DPRIV			(_ULCAST_(1) << MCSR8_L3DPRIV_SHIFT)
#define  MCSR8_L3DPRE_SHIFT		14
#define  MCSR8_L3DPRE			(_ULCAST_(1) << MCSR8_L3DPRE_SHIFT)
#define  MCSR8_L3IUINCL_SHIFT		13
#define  MCSR8_L3IUINCL			(_ULCAST_(1) << MCSR8_L3IUINCL_SHIFT)
#define  MCSR8_L3IUPRIV_SHIFT		12
#define  MCSR8_L3IUPRIV			(_ULCAST_(1) << MCSR8_L3IUPRIV_SHIFT)
#define  MCSR8_L3IUUNIFY_SHIFT		11
#define  MCSR8_L3IUUNIFY		(_ULCAST_(1) << MCSR8_L3IUUNIFY_SHIFT)
#define  MCSR8_L3IUPRE_SHIFT		10
#define  MCSR8_L3IUPRE			(_ULCAST_(1) << MCSR8_L3IUPRE_SHIFT)
#define  MCSR8_L2DINCL_SHIFT		9
#define  MCSR8_L2DINCL			(_ULCAST_(1) << MCSR8_L2DINCL_SHIFT)
#define  MCSR8_L2DPRIV_SHIFT		8
#define  MCSR8_L2DPRIV			(_ULCAST_(1) << MCSR8_L2DPRIV_SHIFT)
#define  MCSR8_L2DPRE_SHIFT		7
#define  MCSR8_L2DPRE			(_ULCAST_(1) << MCSR8_L2DPRE_SHIFT)
#define  MCSR8_L2IUINCL_SHIFT		6
#define  MCSR8_L2IUINCL			(_ULCAST_(1) << MCSR8_L2IUINCL_SHIFT)
#define  MCSR8_L2IUPRIV_SHIFT		5
#define  MCSR8_L2IUPRIV			(_ULCAST_(1) << MCSR8_L2IUPRIV_SHIFT)
#define  MCSR8_L2IUUNIFY_SHIFT		4
#define  MCSR8_L2IUUNIFY		(_ULCAST_(1) << MCSR8_L2IUUNIFY_SHIFT)
#define  MCSR8_L2IUPRE_SHIFT		3
#define  MCSR8_L2IUPRE			(_ULCAST_(1) << MCSR8_L2IUPRE_SHIFT)
#define  MCSR8_L1DPRE_SHIFT		2
#define  MCSR8_L1DPRE			(_ULCAST_(1) << MCSR8_L1DPRE_SHIFT)
#define  MCSR8_L1IUUNIFY_SHIFT		1
#define  MCSR8_L1IUUNIFY		(_ULCAST_(1) << MCSR8_L1IUUNIFY_SHIFT)
#define  MCSR8_L1IUPRE_SHIFT		0
#define  MCSR8_L1IUPRE			(_ULCAST_(1) << MCSR8_L1IUPRE_SHIFT)

#define LOONGARCH_CSR_MCSR9		0xc9	/* CPUCFG18 and CPUCFG19 */
#define  MCSR9_L2U_SIZE_SHIFT		56
#define  MCSR9_L2U_SIZE_WIDTH		7
#define  MCSR9_L2U_SIZE			(_ULCAST_(0x7f) << MCSR9_L2U_SIZE_SHIFT)
#define  MCSR9_L2U_IDX_SHIFT		48
#define  MCSR9_L2U_IDX_WIDTH		8
#define  MCSR9_L2U_IDX			(_ULCAST_(0xff) << MCSR9_IDX_LOG_SHIFT)
#define  MCSR9_L2U_WAY_SHIFT		32
#define  MCSR9_L2U_WAY_WIDTH		16
#define  MCSR9_L2U_WAY			(_ULCAST_(0xffff) << MCSR9_L2U_WAY_SHIFT)
#define  MCSR9_L1D_SIZE_SHIFT		24
#define  MCSR9_L1D_SIZE_WIDTH		7
#define  MCSR9_L1D_SIZE			(_ULCAST_(0x7f) << MCSR9_L1D_SIZE_SHIFT)
#define  MCSR9_L1D_IDX_SHIFT		16
#define  MCSR9_L1D_IDX_WIDTH		8
#define  MCSR9_L1D_IDX			(_ULCAST_(0xff) << MCSR9_L1D_IDX_SHIFT)
#define  MCSR9_L1D_WAY_SHIFT		0
#define  MCSR9_L1D_WAY_WIDTH		16
#define  MCSR9_L1D_WAY			(_ULCAST_(0xffff) << MCSR9_L1D_WAY_SHIFT)

#define LOONGARCH_CSR_MCSR10		0xca	/* CPUCFG20 */
#define  MCSR10_L3U_SIZE_SHIFT		24
#define  MCSR10_L3U_SIZE_WIDTH		7
#define  MCSR10_L3U_SIZE		(_ULCAST_(0x7f) << MCSR10_L3U_SIZE_SHIFT)
#define  MCSR10_L3U_IDX_SHIFT		16
#define  MCSR10_L3U_IDX_WIDTH		8
#define  MCSR10_L3U_IDX			(_ULCAST_(0xff) << MCSR10_L3U_IDX_SHIFT)
#define  MCSR10_L3U_WAY_SHIFT		0
#define  MCSR10_L3U_WAY_WIDTH		16
#define  MCSR10_L3U_WAY			(_ULCAST_(0xffff) << MCSR10_L3U_WAY_SHIFT)

#define LOONGARCH_CSR_MCSR24		0xf0	/* cpucfg48 */
#define  MCSR24_RAMCG_SHIFT		3
#define  MCSR24_RAMCG			(_ULCAST_(1) << MCSR24_RAMCG_SHIFT)
#define  MCSR24_VFPUCG_SHIFT		2
#define  MCSR24_VFPUCG			(_ULCAST_(1) << MCSR24_VFPUCG_SHIFT)
#define  MCSR24_NAPEN_SHIFT		1
#define  MCSR24_NAPEN			(_ULCAST_(1) << MCSR24_NAPEN_SHIFT)
#define  MCSR24_MCSRLOCK_SHIFT		0
#define  MCSR24_MCSRLOCK		(_ULCAST_(1) << MCSR24_MCSRLOCK_SHIFT)

/* Uncached accelerate windows registers */
#define LOONGARCH_CSR_UCAWIN		0x100
#define LOONGARCH_CSR_UCAWIN0_LO	0x102
#define LOONGARCH_CSR_UCAWIN0_HI	0x103
#define LOONGARCH_CSR_UCAWIN1_LO	0x104
#define LOONGARCH_CSR_UCAWIN1_HI	0x105
#define LOONGARCH_CSR_UCAWIN2_LO	0x106
#define LOONGARCH_CSR_UCAWIN2_HI	0x107
#define LOONGARCH_CSR_UCAWIN3_LO	0x108
#define LOONGARCH_CSR_UCAWIN3_HI	0x109

/* Direct Map windows registers */
#define LOONGARCH_CSR_DMWIN0		0x180	/* 64 direct map win0: MEM & IF */
#define LOONGARCH_CSR_DMWIN1		0x181	/* 64 direct map win1: MEM & IF */
#define LOONGARCH_CSR_DMWIN2		0x182	/* 64 direct map win2: MEM */
#define LOONGARCH_CSR_DMWIN3		0x183	/* 64 direct map win3: MEM */

/* Direct Map window 0/1 */
#define CSR_DMW0_PLV0		_CONST64_(1 << 0)
#define CSR_DMW0_VSEG		_CONST64_(0x8000)
#define CSR_DMW0_BASE		(CSR_DMW0_VSEG << DMW_PABITS)
#define CSR_DMW0_INIT		(CSR_DMW0_BASE | CSR_DMW0_PLV0)

#define CSR_DMW1_PLV0		_CONST64_(1 << 0)
#define CSR_DMW1_MAT		_CONST64_(1 << 4)
#define CSR_DMW1_VSEG		_CONST64_(0x9000)
#define CSR_DMW1_BASE		(CSR_DMW1_VSEG << DMW_PABITS)
#define CSR_DMW1_INIT		(CSR_DMW1_BASE | CSR_DMW1_MAT | CSR_DMW1_PLV0)

/* Performance Counter registers */
#define LOONGARCH_CSR_PERFCTRL0		0x200	/* 32 perf event 0 config */
#define LOONGARCH_CSR_PERFCNTR0		0x201	/* 64 perf event 0 count value */
#define LOONGARCH_CSR_PERFCTRL1		0x202	/* 32 perf event 1 config */
#define LOONGARCH_CSR_PERFCNTR1		0x203	/* 64 perf event 1 count value */
#define LOONGARCH_CSR_PERFCTRL2		0x204	/* 32 perf event 2 config */
#define LOONGARCH_CSR_PERFCNTR2		0x205	/* 64 perf event 2 count value */
#define LOONGARCH_CSR_PERFCTRL3		0x206	/* 32 perf event 3 config */
#define LOONGARCH_CSR_PERFCNTR3		0x207	/* 64 perf event 3 count value */
#define  CSR_PERFCTRL_PLV0		(_ULCAST_(1) << 16)
#define  CSR_PERFCTRL_PLV1		(_ULCAST_(1) << 17)
#define  CSR_PERFCTRL_PLV2		(_ULCAST_(1) << 18)
#define  CSR_PERFCTRL_PLV3		(_ULCAST_(1) << 19)
#define  CSR_PERFCTRL_IE		(_ULCAST_(1) << 20)
#define  CSR_PERFCTRL_EVENT		0x3ff

/* Debug registers */
#define LOONGARCH_CSR_MWPC		0x300	/* data breakpoint config */
#define LOONGARCH_CSR_MWPS		0x301	/* data breakpoint status */

#define LOONGARCH_CSR_DB0ADDR		0x310	/* data breakpoint 0 address */
#define LOONGARCH_CSR_DB0MASK		0x311	/* data breakpoint 0 mask */
#define LOONGARCH_CSR_DB0CTRL		0x312	/* data breakpoint 0 control */
#define LOONGARCH_CSR_DB0ASID		0x313	/* data breakpoint 0 asid */

#define LOONGARCH_CSR_DB1ADDR		0x318	/* data breakpoint 1 address */
#define LOONGARCH_CSR_DB1MASK		0x319	/* data breakpoint 1 mask */
#define LOONGARCH_CSR_DB1CTRL		0x31a	/* data breakpoint 1 control */
#define LOONGARCH_CSR_DB1ASID		0x31b	/* data breakpoint 1 asid */

#define LOONGARCH_CSR_DB2ADDR		0x320	/* data breakpoint 2 address */
#define LOONGARCH_CSR_DB2MASK		0x321	/* data breakpoint 2 mask */
#define LOONGARCH_CSR_DB2CTRL		0x322	/* data breakpoint 2 control */
#define LOONGARCH_CSR_DB2ASID		0x323	/* data breakpoint 2 asid */

#define LOONGARCH_CSR_DB3ADDR		0x328	/* data breakpoint 3 address */
#define LOONGARCH_CSR_DB3MASK		0x329	/* data breakpoint 3 mask */
#define LOONGARCH_CSR_DB3CTRL		0x32a	/* data breakpoint 3 control */
#define LOONGARCH_CSR_DB3ASID		0x32b	/* data breakpoint 3 asid */

#define LOONGARCH_CSR_DB4ADDR		0x330	/* data breakpoint 4 address */
#define LOONGARCH_CSR_DB4MASK		0x331	/* data breakpoint 4 maks */
#define LOONGARCH_CSR_DB4CTRL		0x332	/* data breakpoint 4 control */
#define LOONGARCH_CSR_DB4ASID		0x333	/* data breakpoint 4 asid */

#define LOONGARCH_CSR_DB5ADDR		0x338	/* data breakpoint 5 address */
#define LOONGARCH_CSR_DB5MASK		0x339	/* data breakpoint 5 mask */
#define LOONGARCH_CSR_DB5CTRL		0x33a	/* data breakpoint 5 control */
#define LOONGARCH_CSR_DB5ASID		0x33b	/* data breakpoint 5 asid */

#define LOONGARCH_CSR_DB6ADDR		0x340	/* data breakpoint 6 address */
#define LOONGARCH_CSR_DB6MASK		0x341	/* data breakpoint 6 mask */
#define LOONGARCH_CSR_DB6CTRL		0x342	/* data breakpoint 6 control */
#define LOONGARCH_CSR_DB6ASID		0x343	/* data breakpoint 6 asid */

#define LOONGARCH_CSR_DB7ADDR		0x348	/* data breakpoint 7 address */
#define LOONGARCH_CSR_DB7MASK		0x349	/* data breakpoint 7 mask */
#define LOONGARCH_CSR_DB7CTRL		0x34a	/* data breakpoint 7 control */
#define LOONGARCH_CSR_DB7ASID		0x34b	/* data breakpoint 7 asid */

#define LOONGARCH_CSR_FWPC		0x380	/* instruction breakpoint config */
#define LOONGARCH_CSR_FWPS		0x381	/* instruction breakpoint status */

#define LOONGARCH_CSR_IB0ADDR		0x390	/* inst breakpoint 0 address */
#define LOONGARCH_CSR_IB0MASK		0x391	/* inst breakpoint 0 mask */
#define LOONGARCH_CSR_IB0CTRL		0x392	/* inst breakpoint 0 control */
#define LOONGARCH_CSR_IB0ASID		0x393	/* inst breakpoint 0 asid */

#define LOONGARCH_CSR_IB1ADDR		0x398	/* inst breakpoint 1 address */
#define LOONGARCH_CSR_IB1MASK		0x399	/* inst breakpoint 1 mask */
#define LOONGARCH_CSR_IB1CTRL		0x39a	/* inst breakpoint 1 control */
#define LOONGARCH_CSR_IB1ASID		0x39b	/* inst breakpoint 1 asid */

#define LOONGARCH_CSR_IB2ADDR		0x3a0	/* inst breakpoint 2 address */
#define LOONGARCH_CSR_IB2MASK		0x3a1	/* inst breakpoint 2 mask */
#define LOONGARCH_CSR_IB2CTRL		0x3a2	/* inst breakpoint 2 control */
#define LOONGARCH_CSR_IB2ASID		0x3a3	/* inst breakpoint 2 asid */

#define LOONGARCH_CSR_IB3ADDR		0x3a8	/* inst breakpoint 3 address */
#define LOONGARCH_CSR_IB3MASK		0x3a9	/* breakpoint 3 mask */
#define LOONGARCH_CSR_IB3CTRL		0x3aa	/* inst breakpoint 3 control */
#define LOONGARCH_CSR_IB3ASID		0x3ab	/* inst breakpoint 3 asid */

#define LOONGARCH_CSR_IB4ADDR		0x3b0	/* inst breakpoint 4 address */
#define LOONGARCH_CSR_IB4MASK		0x3b1	/* inst breakpoint 4 mask */
#define LOONGARCH_CSR_IB4CTRL		0x3b2	/* inst breakpoint 4 control */
#define LOONGARCH_CSR_IB4ASID		0x3b3	/* inst breakpoint 4 asid */

#define LOONGARCH_CSR_IB5ADDR		0x3b8	/* inst breakpoint 5 address */
#define LOONGARCH_CSR_IB5MASK		0x3b9	/* inst breakpoint 5 mask */
#define LOONGARCH_CSR_IB5CTRL		0x3ba	/* inst breakpoint 5 control */
#define LOONGARCH_CSR_IB5ASID		0x3bb	/* inst breakpoint 5 asid */

#define LOONGARCH_CSR_IB6ADDR		0x3c0	/* inst breakpoint 6 address */
#define LOONGARCH_CSR_IB6MASK		0x3c1	/* inst breakpoint 6 mask */
#define LOONGARCH_CSR_IB6CTRL		0x3c2	/* inst breakpoint 6 control */
#define LOONGARCH_CSR_IB6ASID		0x3c3	/* inst breakpoint 6 asid */

#define LOONGARCH_CSR_IB7ADDR		0x3c8	/* inst breakpoint 7 address */
#define LOONGARCH_CSR_IB7MASK		0x3c9	/* inst breakpoint 7 mask */
#define LOONGARCH_CSR_IB7CTRL		0x3ca	/* inst breakpoint 7 control */
#define LOONGARCH_CSR_IB7ASID		0x3cb	/* inst breakpoint 7 asid */

#define LOONGARCH_CSR_DEBUG		0x500	/* debug config */
#define LOONGARCH_CSR_DERA		0x501	/* debug era */
#define LOONGARCH_CSR_DESAVE		0x502	/* debug save */

#define CSR_FWPC_SKIP_SHIFT		16
#define CSR_FWPC_SKIP			(_ULCAST_(1) << CSR_FWPC_SKIP_SHIFT)

/*
 * CSR_ECFG IM
 */
#define ECFG0_IM		0x00001fff
#define ECFGB_SIP0		0
#define ECFGF_SIP0		(_ULCAST_(1) << ECFGB_SIP0)
#define ECFGB_SIP1		1
#define ECFGF_SIP1		(_ULCAST_(1) << ECFGB_SIP1)
#define ECFGB_IP0		2
#define ECFGF_IP0		(_ULCAST_(1) << ECFGB_IP0)
#define ECFGB_IP1		3
#define ECFGF_IP1		(_ULCAST_(1) << ECFGB_IP1)
#define ECFGB_IP2		4
#define ECFGF_IP2		(_ULCAST_(1) << ECFGB_IP2)
#define ECFGB_IP3		5
#define ECFGF_IP3		(_ULCAST_(1) << ECFGB_IP3)
#define ECFGB_IP4		6
#define ECFGF_IP4		(_ULCAST_(1) << ECFGB_IP4)
#define ECFGB_IP5		7
#define ECFGF_IP5		(_ULCAST_(1) << ECFGB_IP5)
#define ECFGB_IP6		8
#define ECFGF_IP6		(_ULCAST_(1) << ECFGB_IP6)
#define ECFGB_IP7		9
#define ECFGF_IP7		(_ULCAST_(1) << ECFGB_IP7)
#define ECFGB_PMC		10
#define ECFGF_PMC		(_ULCAST_(1) << ECFGB_PMC)
#define ECFGB_TIMER		11
#define ECFGF_TIMER		(_ULCAST_(1) << ECFGB_TIMER)
#define ECFGB_IPI		12
#define ECFGF_IPI		(_ULCAST_(1) << ECFGB_IPI)
#define ECFGF(hwirq)		(_ULCAST_(1) << hwirq)

#define ESTATF_IP		0x00003fff

#define LOONGARCH_IOCSR_FEATURES	0x8
#define  IOCSRF_TEMP			BIT_ULL(0)
#define  IOCSRF_NODECNT			BIT_ULL(1)
#define  IOCSRF_MSI			BIT_ULL(2)
#define  IOCSRF_EXTIOI			BIT_ULL(3)
#define  IOCSRF_CSRIPI			BIT_ULL(4)
#define  IOCSRF_FREQCSR			BIT_ULL(5)
#define  IOCSRF_FREQSCALE		BIT_ULL(6)
#define  IOCSRF_DVFSV1			BIT_ULL(7)
#define  IOCSRF_EIODECODE		BIT_ULL(9)
#define  IOCSRF_FLATMODE		BIT_ULL(10)
#define  IOCSRF_VM			BIT_ULL(11)

#define LOONGARCH_IOCSR_VENDOR		0x10

#define LOONGARCH_IOCSR_CPUNAME		0x20

#define LOONGARCH_IOCSR_NODECNT		0x408

#define LOONGARCH_IOCSR_MISC_FUNC	0x420
#define  IOCSR_MISC_FUNC_TIMER_RESET	BIT_ULL(21)
#define  IOCSR_MISC_FUNC_EXT_IOI_EN	BIT_ULL(48)

#define LOONGARCH_IOCSR_CPUTEMP		0x428

/* PerCore CSR, only accessible by local cores */
#define LOONGARCH_IOCSR_IPI_STATUS	0x1000
#define LOONGARCH_IOCSR_IPI_EN		0x1004
#define LOONGARCH_IOCSR_IPI_SET		0x1008
#define LOONGARCH_IOCSR_IPI_CLEAR	0x100c
#define LOONGARCH_IOCSR_MBUF0		0x1020
#define LOONGARCH_IOCSR_MBUF1		0x1028
#define LOONGARCH_IOCSR_MBUF2		0x1030
#define LOONGARCH_IOCSR_MBUF3		0x1038

#define LOONGARCH_IOCSR_IPI_SEND	0x1040
#define  IOCSR_IPI_SEND_IP_SHIFT	0
#define  IOCSR_IPI_SEND_CPU_SHIFT	16
#define  IOCSR_IPI_SEND_BLOCKING	BIT(31)

#define LOONGARCH_IOCSR_MBUF_SEND	0x1048
#define  IOCSR_MBUF_SEND_BLOCKING	BIT_ULL(31)
#define  IOCSR_MBUF_SEND_BOX_SHIFT	2
#define  IOCSR_MBUF_SEND_BOX_LO(box)	(box << 1)
#define  IOCSR_MBUF_SEND_BOX_HI(box)	((box << 1) + 1)
#define  IOCSR_MBUF_SEND_CPU_SHIFT	16
#define  IOCSR_MBUF_SEND_BUF_SHIFT	32
#define  IOCSR_MBUF_SEND_H32_MASK	0xFFFFFFFF00000000ULL

#define LOONGARCH_IOCSR_ANY_SEND	0x1158
#define  IOCSR_ANY_SEND_BLOCKING	BIT_ULL(31)
#define  IOCSR_ANY_SEND_CPU_SHIFT	16
#define  IOCSR_ANY_SEND_MASK_SHIFT	27
#define  IOCSR_ANY_SEND_BUF_SHIFT	32
#define  IOCSR_ANY_SEND_H32_MASK	0xFFFFFFFF00000000ULL

/* Register offset and bit definition for CSR access */
#define LOONGARCH_IOCSR_TIMER_CFG       0x1060
#define LOONGARCH_IOCSR_TIMER_TICK      0x1070
#define  IOCSR_TIMER_CFG_RESERVED       (_ULCAST_(1) << 63)
#define  IOCSR_TIMER_CFG_PERIODIC       (_ULCAST_(1) << 62)
#define  IOCSR_TIMER_CFG_EN             (_ULCAST_(1) << 61)
#define  IOCSR_TIMER_MASK		0x0ffffffffffffULL
#define  IOCSR_TIMER_INITVAL_RST        (_ULCAST_(0xffff) << 48)

#define LOONGARCH_IOCSR_EXTIOI_NODEMAP_BASE	0x14a0
#define LOONGARCH_IOCSR_EXTIOI_IPMAP_BASE	0x14c0
#define LOONGARCH_IOCSR_EXTIOI_EN_BASE		0x1600
#define LOONGARCH_IOCSR_EXTIOI_BOUNCE_BASE	0x1680
#define LOONGARCH_IOCSR_EXTIOI_ISR_BASE		0x1800
#define LOONGARCH_IOCSR_EXTIOI_ROUTE_BASE	0x1c00
#define IOCSR_EXTIOI_VECTOR_NUM			256

#ifndef __ASSEMBLY__

static __always_inline u64 drdtime(void)
{
	u64 val = 0;

	__asm__ __volatile__(
		"rdtime.d %0, $zero\n\t"
		: "=r"(val)
		:
		);
	return val;
}

static inline unsigned int get_csr_cpuid(void)
{
	return csr_read32(LOONGARCH_CSR_CPUID);
}

static inline void csr_any_send(unsigned int addr, unsigned int data,
				unsigned int data_mask, unsigned int cpu)
{
	uint64_t val = 0;

	val = IOCSR_ANY_SEND_BLOCKING | addr;
	val |= (cpu << IOCSR_ANY_SEND_CPU_SHIFT);
	val |= (data_mask << IOCSR_ANY_SEND_MASK_SHIFT);
	val |= ((uint64_t)data << IOCSR_ANY_SEND_BUF_SHIFT);
	iocsr_write64(val, LOONGARCH_IOCSR_ANY_SEND);
}

static inline unsigned int read_csr_excode(void)
{
	return (csr_read32(LOONGARCH_CSR_ESTAT) & CSR_ESTAT_EXC) >> CSR_ESTAT_EXC_SHIFT;
}

static inline void write_csr_index(unsigned int idx)
{
	csr_xchg32(idx, CSR_TLBIDX_IDXM, LOONGARCH_CSR_TLBIDX);
}

static inline unsigned int read_csr_pagesize(void)
{
	return (csr_read32(LOONGARCH_CSR_TLBIDX) & CSR_TLBIDX_SIZEM) >> CSR_TLBIDX_SIZE;
}

static inline void write_csr_pagesize(unsigned int size)
{
	csr_xchg32(size << CSR_TLBIDX_SIZE, CSR_TLBIDX_SIZEM, LOONGARCH_CSR_TLBIDX);
}

static inline unsigned int read_csr_tlbrefill_pagesize(void)
{
	return (csr_read64(LOONGARCH_CSR_TLBREHI) & CSR_TLBREHI_PS) >> CSR_TLBREHI_PS_SHIFT;
}

static inline void write_csr_tlbrefill_pagesize(unsigned int size)
{
	csr_xchg64(size << CSR_TLBREHI_PS_SHIFT, CSR_TLBREHI_PS, LOONGARCH_CSR_TLBREHI);
}

#define read_csr_asid()			csr_read32(LOONGARCH_CSR_ASID)
#define write_csr_asid(val)		csr_write32(val, LOONGARCH_CSR_ASID)
#define read_csr_entryhi()		csr_read64(LOONGARCH_CSR_TLBEHI)
#define write_csr_entryhi(val)		csr_write64(val, LOONGARCH_CSR_TLBEHI)
#define read_csr_entrylo0()		csr_read64(LOONGARCH_CSR_TLBELO0)
#define write_csr_entrylo0(val)		csr_write64(val, LOONGARCH_CSR_TLBELO0)
#define read_csr_entrylo1()		csr_read64(LOONGARCH_CSR_TLBELO1)
#define write_csr_entrylo1(val)		csr_write64(val, LOONGARCH_CSR_TLBELO1)
#define read_csr_ecfg()			csr_read32(LOONGARCH_CSR_ECFG)
#define write_csr_ecfg(val)		csr_write32(val, LOONGARCH_CSR_ECFG)
#define read_csr_estat()		csr_read32(LOONGARCH_CSR_ESTAT)
#define write_csr_estat(val)		csr_write32(val, LOONGARCH_CSR_ESTAT)
#define read_csr_tlbidx()		csr_read32(LOONGARCH_CSR_TLBIDX)
#define write_csr_tlbidx(val)		csr_write32(val, LOONGARCH_CSR_TLBIDX)
#define read_csr_euen()			csr_read32(LOONGARCH_CSR_EUEN)
#define write_csr_euen(val)		csr_write32(val, LOONGARCH_CSR_EUEN)
#define read_csr_cpuid()		csr_read32(LOONGARCH_CSR_CPUID)
#define read_csr_prcfg1()		csr_read64(LOONGARCH_CSR_PRCFG1)
#define write_csr_prcfg1(val)		csr_write64(val, LOONGARCH_CSR_PRCFG1)
#define read_csr_prcfg2()		csr_read64(LOONGARCH_CSR_PRCFG2)
#define write_csr_prcfg2(val)		csr_write64(val, LOONGARCH_CSR_PRCFG2)
#define read_csr_prcfg3()		csr_read64(LOONGARCH_CSR_PRCFG3)
#define write_csr_prcfg3(val)		csr_write64(val, LOONGARCH_CSR_PRCFG3)
#define read_csr_stlbpgsize()		csr_read32(LOONGARCH_CSR_STLBPGSIZE)
#define write_csr_stlbpgsize(val)	csr_write32(val, LOONGARCH_CSR_STLBPGSIZE)
#define read_csr_rvacfg()		csr_read32(LOONGARCH_CSR_RVACFG)
#define write_csr_rvacfg(val)		csr_write32(val, LOONGARCH_CSR_RVACFG)
#define write_csr_tintclear(val)	csr_write32(val, LOONGARCH_CSR_TINTCLR)
#define read_csr_impctl1()		csr_read64(LOONGARCH_CSR_IMPCTL1)
#define write_csr_impctl1(val)		csr_write64(val, LOONGARCH_CSR_IMPCTL1)
#define write_csr_impctl2(val)		csr_write64(val, LOONGARCH_CSR_IMPCTL2)

#define read_csr_perfctrl0()		csr_read64(LOONGARCH_CSR_PERFCTRL0)
#define read_csr_perfcntr0()		csr_read64(LOONGARCH_CSR_PERFCNTR0)
#define read_csr_perfctrl1()		csr_read64(LOONGARCH_CSR_PERFCTRL1)
#define read_csr_perfcntr1()		csr_read64(LOONGARCH_CSR_PERFCNTR1)
#define read_csr_perfctrl2()		csr_read64(LOONGARCH_CSR_PERFCTRL2)
#define read_csr_perfcntr2()		csr_read64(LOONGARCH_CSR_PERFCNTR2)
#define read_csr_perfctrl3()		csr_read64(LOONGARCH_CSR_PERFCTRL3)
#define read_csr_perfcntr3()		csr_read64(LOONGARCH_CSR_PERFCNTR3)
#define write_csr_perfctrl0(val)	csr_write64(val, LOONGARCH_CSR_PERFCTRL0)
#define write_csr_perfcntr0(val)	csr_write64(val, LOONGARCH_CSR_PERFCNTR0)
#define write_csr_perfctrl1(val)	csr_write64(val, LOONGARCH_CSR_PERFCTRL1)
#define write_csr_perfcntr1(val)	csr_write64(val, LOONGARCH_CSR_PERFCNTR1)
#define write_csr_perfctrl2(val)	csr_write64(val, LOONGARCH_CSR_PERFCTRL2)
#define write_csr_perfcntr2(val)	csr_write64(val, LOONGARCH_CSR_PERFCNTR2)
#define write_csr_perfctrl3(val)	csr_write64(val, LOONGARCH_CSR_PERFCTRL3)
#define write_csr_perfcntr3(val)	csr_write64(val, LOONGARCH_CSR_PERFCNTR3)

/*
 * Manipulate bits in a register.
 */
#define __BUILD_CSR_COMMON(name)				\
static inline unsigned long					\
set_##name(unsigned long set)					\
{								\
	unsigned long res, new;					\
								\
	res = read_##name();					\
	new = res | set;					\
	write_##name(new);					\
								\
	return res;						\
}								\
								\
static inline unsigned long					\
clear_##name(unsigned long clear)				\
{								\
	unsigned long res, new;					\
								\
	res = read_##name();					\
	new = res & ~clear;					\
	write_##name(new);					\
								\
	return res;						\
}								\
								\
static inline unsigned long					\
change_##name(unsigned long change, unsigned long val)		\
{								\
	unsigned long res, new;					\
								\
	res = read_##name();					\
	new = res & ~change;					\
	new |= (val & change);					\
	write_##name(new);					\
								\
	return res;						\
}

#define __BUILD_CSR_OP(name)	__BUILD_CSR_COMMON(csr_##name)

__BUILD_CSR_OP(euen)
__BUILD_CSR_OP(ecfg)
__BUILD_CSR_OP(tlbidx)

#define set_csr_estat(val)	\
	csr_xchg32(val, val, LOONGARCH_CSR_ESTAT)
#define clear_csr_estat(val)	\
	csr_xchg32(~(val), val, LOONGARCH_CSR_ESTAT)

#endif /* __ASSEMBLY__ */

/* Generic EntryLo bit definitions */
#define ENTRYLO_V		(_ULCAST_(1) << 0)
#define ENTRYLO_D		(_ULCAST_(1) << 1)
#define ENTRYLO_PLV_SHIFT	2
#define ENTRYLO_PLV		(_ULCAST_(3) << ENTRYLO_PLV_SHIFT)
#define ENTRYLO_C_SHIFT		4
#define ENTRYLO_C		(_ULCAST_(3) << ENTRYLO_C_SHIFT)
#define ENTRYLO_G		(_ULCAST_(1) << 6)
#define ENTRYLO_NR		(_ULCAST_(1) << 61)
#define ENTRYLO_NX		(_ULCAST_(1) << 62)

/* Values for PageSize register */
#define PS_4K		0x0000000c
#define PS_8K		0x0000000d
#define PS_16K		0x0000000e
#define PS_32K		0x0000000f
#define PS_64K		0x00000010
#define PS_128K		0x00000011
#define PS_256K		0x00000012
#define PS_512K		0x00000013
#define PS_1M		0x00000014
#define PS_2M		0x00000015
#define PS_4M		0x00000016
#define PS_8M		0x00000017
#define PS_16M		0x00000018
#define PS_32M		0x00000019
#define PS_64M		0x0000001a
#define PS_128M		0x0000001b
#define PS_256M		0x0000001c
#define PS_512M		0x0000001d
#define PS_1G		0x0000001e

/* Default page size for a given kernel configuration */
#ifdef CONFIG_PAGE_SIZE_4KB
#define PS_DEFAULT_SIZE PS_4K
#elif defined(CONFIG_PAGE_SIZE_16KB)
#define PS_DEFAULT_SIZE PS_16K
#elif defined(CONFIG_PAGE_SIZE_64KB)
#define PS_DEFAULT_SIZE PS_64K
#else
#error Bad page size configuration!
#endif

/* Default huge tlb size for a given kernel configuration */
#ifdef CONFIG_PAGE_SIZE_4KB
#define PS_HUGE_SIZE   PS_1M
#elif defined(CONFIG_PAGE_SIZE_16KB)
#define PS_HUGE_SIZE   PS_16M
#elif defined(CONFIG_PAGE_SIZE_64KB)
#define PS_HUGE_SIZE   PS_256M
#else
#error Bad page size configuration for hugetlbfs!
#endif

/* ExStatus.ExcCode */
#define EXCCODE_RSV		0	/* Reserved */
#define EXCCODE_TLBL		1	/* TLB miss on a load */
#define EXCCODE_TLBS		2	/* TLB miss on a store */
#define EXCCODE_TLBI		3	/* TLB miss on a ifetch */
#define EXCCODE_TLBM		4	/* TLB modified fault */
#define EXCCODE_TLBNR		5	/* TLB Read-Inhibit exception */
#define EXCCODE_TLBNX		6	/* TLB Execution-Inhibit exception */
#define EXCCODE_TLBPE		7	/* TLB Privilege Error */
#define EXCCODE_ADE		8	/* Address Error */
	#define EXSUBCODE_ADEF		0	/* Fetch Instruction */
	#define EXSUBCODE_ADEM		1	/* Access Memory*/
#define EXCCODE_ALE		9	/* Unalign Access */
#define EXCCODE_BCE		10	/* Bounds Check Error */
#define EXCCODE_SYS		11	/* System call */
#define EXCCODE_BP		12	/* Breakpoint */
#define EXCCODE_INE		13	/* Inst. Not Exist */
#define EXCCODE_IPE		14	/* Inst. Privileged Error */
#define EXCCODE_FPDIS		15	/* FPU Disabled */
#define EXCCODE_LSXDIS		16	/* LSX Disabled */
#define EXCCODE_LASXDIS		17	/* LASX Disabled */
#define EXCCODE_FPE		18	/* Floating Point Exception */
	#define EXCSUBCODE_FPE		0	/* Floating Point Exception */
	#define EXCSUBCODE_VFPE		1	/* Vector Exception */
#define EXCCODE_WATCH		19	/* WatchPoint Exception */
	#define EXCSUBCODE_WPEF		0	/* ... on Instruction Fetch */
	#define EXCSUBCODE_WPEM		1	/* ... on Memory Accesses */
#define EXCCODE_BTDIS		20	/* Binary Trans. Disabled */
#define EXCCODE_BTE		21	/* Binary Trans. Exception */
#define EXCCODE_GSPR		22	/* Guest Privileged Error */
#define EXCCODE_HVC		23	/* Hypercall */
#define EXCCODE_GCM		24	/* Guest CSR modified */
	#define EXCSUBCODE_GCSC		0	/* Software caused */
	#define EXCSUBCODE_GCHC		1	/* Hardware caused */
#define EXCCODE_SE		25	/* Security */

/* Interrupt numbers */
#define INT_SWI0	0	/* Software Interrupts */
#define INT_SWI1	1
#define INT_HWI0	2	/* Hardware Interrupts */
#define INT_HWI1	3
#define INT_HWI2	4
#define INT_HWI3	5
#define INT_HWI4	6
#define INT_HWI5	7
#define INT_HWI6	8
#define INT_HWI7	9
#define INT_PCOV	10	/* Performance Counter Overflow */
#define INT_TI		11	/* Timer */
#define INT_IPI		12
#define INT_NMI		13

/* ExcCodes corresponding to interrupts */
#define EXCCODE_INT_NUM		(INT_NMI + 1)
#define EXCCODE_INT_START	64
#define EXCCODE_INT_END		(EXCCODE_INT_START + EXCCODE_INT_NUM - 1)

/* FPU Status Register Names */
#ifndef CONFIG_AS_HAS_FCSR_CLASS
#define LOONGARCH_FCSR0	$r0
#define LOONGARCH_FCSR1	$r1
#define LOONGARCH_FCSR2	$r2
#define LOONGARCH_FCSR3	$r3
#else
#define LOONGARCH_FCSR0	$fcsr0
#define LOONGARCH_FCSR1	$fcsr1
#define LOONGARCH_FCSR2	$fcsr2
#define LOONGARCH_FCSR3	$fcsr3
#endif

/* FPU Status Register Values */
#define FPU_CSR_RSVD	0xe0e0fce0

/*
 * X the exception cause indicator
 * E the exception enable
 * S the sticky/flag bit
 */
#define FPU_CSR_ALL_X	0x1f000000
#define FPU_CSR_INV_X	0x10000000
#define FPU_CSR_DIV_X	0x08000000
#define FPU_CSR_OVF_X	0x04000000
#define FPU_CSR_UDF_X	0x02000000
#define FPU_CSR_INE_X	0x01000000

#define FPU_CSR_ALL_S	0x001f0000
#define FPU_CSR_INV_S	0x00100000
#define FPU_CSR_DIV_S	0x00080000
#define FPU_CSR_OVF_S	0x00040000
#define FPU_CSR_UDF_S	0x00020000
#define FPU_CSR_INE_S	0x00010000

#define FPU_CSR_ALL_E	0x0000001f
#define FPU_CSR_INV_E	0x00000010
#define FPU_CSR_DIV_E	0x00000008
#define FPU_CSR_OVF_E	0x00000004
#define FPU_CSR_UDF_E	0x00000002
#define FPU_CSR_INE_E	0x00000001

/* Bits 8 and 9 of FPU Status Register specify the rounding mode */
#define FPU_CSR_RM	0x300
#define FPU_CSR_RN	0x000	/* nearest */
#define FPU_CSR_RZ	0x100	/* towards zero */
#define FPU_CSR_RU	0x200	/* towards +Infinity */
#define FPU_CSR_RD	0x300	/* towards -Infinity */

/* Bit 6 of FPU Status Register specify the LBT TOP simulation mode */
#define FPU_CSR_TM_SHIFT	0x6
#define FPU_CSR_TM		(_ULCAST_(1) << FPU_CSR_TM_SHIFT)

#define read_fcsr(source)	\
({	\
	unsigned int __res;	\
\
	__asm__ __volatile__(	\
	"	movfcsr2gr	%0, "__stringify(source)" \n"	\
	: "=r" (__res));	\
	__res;	\
})

#define write_fcsr(dest, val) \
do {	\
	__asm__ __volatile__(	\
	"	movgr2fcsr	"__stringify(dest)", %0	\n"	\
	: : "r" (val));	\
} while (0)

#endif /* _ASM_LOONGARCH_H */