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
|
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2013 - ARM Ltd
* Author: Marc Zyngier <marc.zyngier@arm.com>
*/
#ifndef __ASM_ESR_H
#define __ASM_ESR_H
#include <asm/memory.h>
#include <asm/sysreg.h>
#define ESR_ELx_EC_UNKNOWN (0x00)
#define ESR_ELx_EC_WFx (0x01)
/* Unallocated EC: 0x02 */
#define ESR_ELx_EC_CP15_32 (0x03)
#define ESR_ELx_EC_CP15_64 (0x04)
#define ESR_ELx_EC_CP14_MR (0x05)
#define ESR_ELx_EC_CP14_LS (0x06)
#define ESR_ELx_EC_FP_ASIMD (0x07)
#define ESR_ELx_EC_CP10_ID (0x08) /* EL2 only */
#define ESR_ELx_EC_PAC (0x09) /* EL2 and above */
/* Unallocated EC: 0x0A - 0x0B */
#define ESR_ELx_EC_CP14_64 (0x0C)
#define ESR_ELx_EC_BTI (0x0D)
#define ESR_ELx_EC_ILL (0x0E)
/* Unallocated EC: 0x0F - 0x10 */
#define ESR_ELx_EC_SVC32 (0x11)
#define ESR_ELx_EC_HVC32 (0x12) /* EL2 only */
#define ESR_ELx_EC_SMC32 (0x13) /* EL2 and above */
/* Unallocated EC: 0x14 */
#define ESR_ELx_EC_SVC64 (0x15)
#define ESR_ELx_EC_HVC64 (0x16) /* EL2 and above */
#define ESR_ELx_EC_SMC64 (0x17) /* EL2 and above */
#define ESR_ELx_EC_SYS64 (0x18)
#define ESR_ELx_EC_SVE (0x19)
#define ESR_ELx_EC_ERET (0x1a) /* EL2 only */
/* Unallocated EC: 0x1B */
#define ESR_ELx_EC_FPAC (0x1C) /* EL1 and above */
/* Unallocated EC: 0x1D - 0x1E */
#define ESR_ELx_EC_IMP_DEF (0x1f) /* EL3 only */
#define ESR_ELx_EC_IABT_LOW (0x20)
#define ESR_ELx_EC_IABT_CUR (0x21)
#define ESR_ELx_EC_PC_ALIGN (0x22)
/* Unallocated EC: 0x23 */
#define ESR_ELx_EC_DABT_LOW (0x24)
#define ESR_ELx_EC_DABT_CUR (0x25)
#define ESR_ELx_EC_SP_ALIGN (0x26)
/* Unallocated EC: 0x27 */
#define ESR_ELx_EC_FP_EXC32 (0x28)
/* Unallocated EC: 0x29 - 0x2B */
#define ESR_ELx_EC_FP_EXC64 (0x2C)
/* Unallocated EC: 0x2D - 0x2E */
#define ESR_ELx_EC_SERROR (0x2F)
#define ESR_ELx_EC_BREAKPT_LOW (0x30)
#define ESR_ELx_EC_BREAKPT_CUR (0x31)
#define ESR_ELx_EC_SOFTSTP_LOW (0x32)
#define ESR_ELx_EC_SOFTSTP_CUR (0x33)
#define ESR_ELx_EC_WATCHPT_LOW (0x34)
#define ESR_ELx_EC_WATCHPT_CUR (0x35)
/* Unallocated EC: 0x36 - 0x37 */
#define ESR_ELx_EC_BKPT32 (0x38)
/* Unallocated EC: 0x39 */
#define ESR_ELx_EC_VECTOR32 (0x3A) /* EL2 only */
/* Unallocated EC: 0x3B */
#define ESR_ELx_EC_BRK64 (0x3C)
/* Unallocated EC: 0x3D - 0x3F */
#define ESR_ELx_EC_MAX (0x3F)
#define ESR_ELx_EC_SHIFT (26)
#define ESR_ELx_EC_MASK (UL(0x3F) << ESR_ELx_EC_SHIFT)
#define ESR_ELx_EC(esr) (((esr) & ESR_ELx_EC_MASK) >> ESR_ELx_EC_SHIFT)
#define ESR_ELx_IL_SHIFT (25)
#define ESR_ELx_IL (UL(1) << ESR_ELx_IL_SHIFT)
#define ESR_ELx_ISS_MASK (ESR_ELx_IL - 1)
/* ISS field definitions shared by different classes */
#define ESR_ELx_WNR_SHIFT (6)
#define ESR_ELx_WNR (UL(1) << ESR_ELx_WNR_SHIFT)
/* Asynchronous Error Type */
#define ESR_ELx_IDS_SHIFT (24)
#define ESR_ELx_IDS (UL(1) << ESR_ELx_IDS_SHIFT)
#define ESR_ELx_AET_SHIFT (10)
#define ESR_ELx_AET (UL(0x7) << ESR_ELx_AET_SHIFT)
#define ESR_ELx_AET_UC (UL(0) << ESR_ELx_AET_SHIFT)
#define ESR_ELx_AET_UEU (UL(1) << ESR_ELx_AET_SHIFT)
#define ESR_ELx_AET_UEO (UL(2) << ESR_ELx_AET_SHIFT)
#define ESR_ELx_AET_UER (UL(3) << ESR_ELx_AET_SHIFT)
#define ESR_ELx_AET_CE (UL(6) << ESR_ELx_AET_SHIFT)
/* Shared ISS field definitions for Data/Instruction aborts */
#define ESR_ELx_SET_SHIFT (11)
#define ESR_ELx_SET_MASK (UL(3) << ESR_ELx_SET_SHIFT)
#define ESR_ELx_FnV_SHIFT (10)
#define ESR_ELx_FnV (UL(1) << ESR_ELx_FnV_SHIFT)
#define ESR_ELx_EA_SHIFT (9)
#define ESR_ELx_EA (UL(1) << ESR_ELx_EA_SHIFT)
#define ESR_ELx_S1PTW_SHIFT (7)
#define ESR_ELx_S1PTW (UL(1) << ESR_ELx_S1PTW_SHIFT)
/* Shared ISS fault status code(IFSC/DFSC) for Data/Instruction aborts */
#define ESR_ELx_FSC (0x3F)
#define ESR_ELx_FSC_TYPE (0x3C)
#define ESR_ELx_FSC_LEVEL (0x03)
#define ESR_ELx_FSC_EXTABT (0x10)
#define ESR_ELx_FSC_MTE (0x11)
#define ESR_ELx_FSC_SERROR (0x11)
#define ESR_ELx_FSC_ACCESS (0x08)
#define ESR_ELx_FSC_FAULT (0x04)
#define ESR_ELx_FSC_PERM (0x0C)
/* ISS field definitions for Data Aborts */
#define ESR_ELx_ISV_SHIFT (24)
#define ESR_ELx_ISV (UL(1) << ESR_ELx_ISV_SHIFT)
#define ESR_ELx_SAS_SHIFT (22)
#define ESR_ELx_SAS (UL(3) << ESR_ELx_SAS_SHIFT)
#define ESR_ELx_SSE_SHIFT (21)
#define ESR_ELx_SSE (UL(1) << ESR_ELx_SSE_SHIFT)
#define ESR_ELx_SRT_SHIFT (16)
#define ESR_ELx_SRT_MASK (UL(0x1F) << ESR_ELx_SRT_SHIFT)
#define ESR_ELx_SF_SHIFT (15)
#define ESR_ELx_SF (UL(1) << ESR_ELx_SF_SHIFT)
#define ESR_ELx_AR_SHIFT (14)
#define ESR_ELx_AR (UL(1) << ESR_ELx_AR_SHIFT)
#define ESR_ELx_CM_SHIFT (8)
#define ESR_ELx_CM (UL(1) << ESR_ELx_CM_SHIFT)
/* ISS field definitions for exceptions taken in to Hyp */
#define ESR_ELx_CV (UL(1) << 24)
#define ESR_ELx_COND_SHIFT (20)
#define ESR_ELx_COND_MASK (UL(0xF) << ESR_ELx_COND_SHIFT)
#define ESR_ELx_WFx_ISS_TI (UL(1) << 0)
#define ESR_ELx_WFx_ISS_WFI (UL(0) << 0)
#define ESR_ELx_WFx_ISS_WFE (UL(1) << 0)
#define ESR_ELx_xVC_IMM_MASK ((1UL << 16) - 1)
#define DISR_EL1_IDS (UL(1) << 24)
/*
* DISR_EL1 and ESR_ELx share the bottom 13 bits, but the RES0 bits may mean
* different things in the future...
*/
#define DISR_EL1_ESR_MASK (ESR_ELx_AET | ESR_ELx_EA | ESR_ELx_FSC)
/* ESR value templates for specific events */
#define ESR_ELx_WFx_MASK (ESR_ELx_EC_MASK | ESR_ELx_WFx_ISS_TI)
#define ESR_ELx_WFx_WFI_VAL ((ESR_ELx_EC_WFx << ESR_ELx_EC_SHIFT) | \
ESR_ELx_WFx_ISS_WFI)
/* BRK instruction trap from AArch64 state */
#define ESR_ELx_BRK64_ISS_COMMENT_MASK 0xffff
/* ISS field definitions for System instruction traps */
#define ESR_ELx_SYS64_ISS_RES0_SHIFT 22
#define ESR_ELx_SYS64_ISS_RES0_MASK (UL(0x7) << ESR_ELx_SYS64_ISS_RES0_SHIFT)
#define ESR_ELx_SYS64_ISS_DIR_MASK 0x1
#define ESR_ELx_SYS64_ISS_DIR_READ 0x1
#define ESR_ELx_SYS64_ISS_DIR_WRITE 0x0
#define ESR_ELx_SYS64_ISS_RT_SHIFT 5
#define ESR_ELx_SYS64_ISS_RT_MASK (UL(0x1f) << ESR_ELx_SYS64_ISS_RT_SHIFT)
#define ESR_ELx_SYS64_ISS_CRM_SHIFT 1
#define ESR_ELx_SYS64_ISS_CRM_MASK (UL(0xf) << ESR_ELx_SYS64_ISS_CRM_SHIFT)
#define ESR_ELx_SYS64_ISS_CRN_SHIFT 10
#define ESR_ELx_SYS64_ISS_CRN_MASK (UL(0xf) << ESR_ELx_SYS64_ISS_CRN_SHIFT)
#define ESR_ELx_SYS64_ISS_OP1_SHIFT 14
#define ESR_ELx_SYS64_ISS_OP1_MASK (UL(0x7) << ESR_ELx_SYS64_ISS_OP1_SHIFT)
#define ESR_ELx_SYS64_ISS_OP2_SHIFT 17
#define ESR_ELx_SYS64_ISS_OP2_MASK (UL(0x7) << ESR_ELx_SYS64_ISS_OP2_SHIFT)
#define ESR_ELx_SYS64_ISS_OP0_SHIFT 20
#define ESR_ELx_SYS64_ISS_OP0_MASK (UL(0x3) << ESR_ELx_SYS64_ISS_OP0_SHIFT)
#define ESR_ELx_SYS64_ISS_SYS_MASK (ESR_ELx_SYS64_ISS_OP0_MASK | \
ESR_ELx_SYS64_ISS_OP1_MASK | \
ESR_ELx_SYS64_ISS_OP2_MASK | \
ESR_ELx_SYS64_ISS_CRN_MASK | \
ESR_ELx_SYS64_ISS_CRM_MASK)
#define ESR_ELx_SYS64_ISS_SYS_VAL(op0, op1, op2, crn, crm) \
(((op0) << ESR_ELx_SYS64_ISS_OP0_SHIFT) | \
((op1) << ESR_ELx_SYS64_ISS_OP1_SHIFT) | \
((op2) << ESR_ELx_SYS64_ISS_OP2_SHIFT) | \
((crn) << ESR_ELx_SYS64_ISS_CRN_SHIFT) | \
((crm) << ESR_ELx_SYS64_ISS_CRM_SHIFT))
#define ESR_ELx_SYS64_ISS_SYS_OP_MASK (ESR_ELx_SYS64_ISS_SYS_MASK | \
ESR_ELx_SYS64_ISS_DIR_MASK)
#define ESR_ELx_SYS64_ISS_RT(esr) \
(((esr) & ESR_ELx_SYS64_ISS_RT_MASK) >> ESR_ELx_SYS64_ISS_RT_SHIFT)
/*
* User space cache operations have the following sysreg encoding
* in System instructions.
* op0=1, op1=3, op2=1, crn=7, crm={ 5, 10, 11, 12, 13, 14 }, WRITE (L=0)
*/
#define ESR_ELx_SYS64_ISS_CRM_DC_CIVAC 14
#define ESR_ELx_SYS64_ISS_CRM_DC_CVADP 13
#define ESR_ELx_SYS64_ISS_CRM_DC_CVAP 12
#define ESR_ELx_SYS64_ISS_CRM_DC_CVAU 11
#define ESR_ELx_SYS64_ISS_CRM_DC_CVAC 10
#define ESR_ELx_SYS64_ISS_CRM_IC_IVAU 5
#define ESR_ELx_SYS64_ISS_EL0_CACHE_OP_MASK (ESR_ELx_SYS64_ISS_OP0_MASK | \
ESR_ELx_SYS64_ISS_OP1_MASK | \
ESR_ELx_SYS64_ISS_OP2_MASK | \
ESR_ELx_SYS64_ISS_CRN_MASK | \
ESR_ELx_SYS64_ISS_DIR_MASK)
#define ESR_ELx_SYS64_ISS_EL0_CACHE_OP_VAL \
(ESR_ELx_SYS64_ISS_SYS_VAL(1, 3, 1, 7, 0) | \
ESR_ELx_SYS64_ISS_DIR_WRITE)
/*
* User space MRS operations which are supported for emulation
* have the following sysreg encoding in System instructions.
* op0 = 3, op1= 0, crn = 0, {crm = 0, 4-7}, READ (L = 1)
*/
#define ESR_ELx_SYS64_ISS_SYS_MRS_OP_MASK (ESR_ELx_SYS64_ISS_OP0_MASK | \
ESR_ELx_SYS64_ISS_OP1_MASK | \
ESR_ELx_SYS64_ISS_CRN_MASK | \
ESR_ELx_SYS64_ISS_DIR_MASK)
#define ESR_ELx_SYS64_ISS_SYS_MRS_OP_VAL \
(ESR_ELx_SYS64_ISS_SYS_VAL(3, 0, 0, 0, 0) | \
ESR_ELx_SYS64_ISS_DIR_READ)
#define ESR_ELx_SYS64_ISS_SYS_CTR ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 1, 0, 0)
#define ESR_ELx_SYS64_ISS_SYS_CTR_READ (ESR_ELx_SYS64_ISS_SYS_CTR | \
ESR_ELx_SYS64_ISS_DIR_READ)
#define ESR_ELx_SYS64_ISS_SYS_CNTVCT (ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 2, 14, 0) | \
ESR_ELx_SYS64_ISS_DIR_READ)
#define ESR_ELx_SYS64_ISS_SYS_CNTFRQ (ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 0, 14, 0) | \
ESR_ELx_SYS64_ISS_DIR_READ)
#define esr_sys64_to_sysreg(e) \
sys_reg((((e) & ESR_ELx_SYS64_ISS_OP0_MASK) >> \
ESR_ELx_SYS64_ISS_OP0_SHIFT), \
(((e) & ESR_ELx_SYS64_ISS_OP1_MASK) >> \
ESR_ELx_SYS64_ISS_OP1_SHIFT), \
(((e) & ESR_ELx_SYS64_ISS_CRN_MASK) >> \
ESR_ELx_SYS64_ISS_CRN_SHIFT), \
(((e) & ESR_ELx_SYS64_ISS_CRM_MASK) >> \
ESR_ELx_SYS64_ISS_CRM_SHIFT), \
(((e) & ESR_ELx_SYS64_ISS_OP2_MASK) >> \
ESR_ELx_SYS64_ISS_OP2_SHIFT))
#define esr_cp15_to_sysreg(e) \
sys_reg(3, \
(((e) & ESR_ELx_SYS64_ISS_OP1_MASK) >> \
ESR_ELx_SYS64_ISS_OP1_SHIFT), \
(((e) & ESR_ELx_SYS64_ISS_CRN_MASK) >> \
ESR_ELx_SYS64_ISS_CRN_SHIFT), \
(((e) & ESR_ELx_SYS64_ISS_CRM_MASK) >> \
ESR_ELx_SYS64_ISS_CRM_SHIFT), \
(((e) & ESR_ELx_SYS64_ISS_OP2_MASK) >> \
ESR_ELx_SYS64_ISS_OP2_SHIFT))
/*
* ISS field definitions for floating-point exception traps
* (FP_EXC_32/FP_EXC_64).
*
* (The FPEXC_* constants are used instead for common bits.)
*/
#define ESR_ELx_FP_EXC_TFV (UL(1) << 23)
/*
* ISS field definitions for CP15 accesses
*/
#define ESR_ELx_CP15_32_ISS_DIR_MASK 0x1
#define ESR_ELx_CP15_32_ISS_DIR_READ 0x1
#define ESR_ELx_CP15_32_ISS_DIR_WRITE 0x0
#define ESR_ELx_CP15_32_ISS_RT_SHIFT 5
#define ESR_ELx_CP15_32_ISS_RT_MASK (UL(0x1f) << ESR_ELx_CP15_32_ISS_RT_SHIFT)
#define ESR_ELx_CP15_32_ISS_CRM_SHIFT 1
#define ESR_ELx_CP15_32_ISS_CRM_MASK (UL(0xf) << ESR_ELx_CP15_32_ISS_CRM_SHIFT)
#define ESR_ELx_CP15_32_ISS_CRN_SHIFT 10
#define ESR_ELx_CP15_32_ISS_CRN_MASK (UL(0xf) << ESR_ELx_CP15_32_ISS_CRN_SHIFT)
#define ESR_ELx_CP15_32_ISS_OP1_SHIFT 14
#define ESR_ELx_CP15_32_ISS_OP1_MASK (UL(0x7) << ESR_ELx_CP15_32_ISS_OP1_SHIFT)
#define ESR_ELx_CP15_32_ISS_OP2_SHIFT 17
#define ESR_ELx_CP15_32_ISS_OP2_MASK (UL(0x7) << ESR_ELx_CP15_32_ISS_OP2_SHIFT)
#define ESR_ELx_CP15_32_ISS_SYS_MASK (ESR_ELx_CP15_32_ISS_OP1_MASK | \
ESR_ELx_CP15_32_ISS_OP2_MASK | \
ESR_ELx_CP15_32_ISS_CRN_MASK | \
ESR_ELx_CP15_32_ISS_CRM_MASK | \
ESR_ELx_CP15_32_ISS_DIR_MASK)
#define ESR_ELx_CP15_32_ISS_SYS_VAL(op1, op2, crn, crm) \
(((op1) << ESR_ELx_CP15_32_ISS_OP1_SHIFT) | \
((op2) << ESR_ELx_CP15_32_ISS_OP2_SHIFT) | \
((crn) << ESR_ELx_CP15_32_ISS_CRN_SHIFT) | \
((crm) << ESR_ELx_CP15_32_ISS_CRM_SHIFT))
#define ESR_ELx_CP15_64_ISS_DIR_MASK 0x1
#define ESR_ELx_CP15_64_ISS_DIR_READ 0x1
#define ESR_ELx_CP15_64_ISS_DIR_WRITE 0x0
#define ESR_ELx_CP15_64_ISS_RT_SHIFT 5
#define ESR_ELx_CP15_64_ISS_RT_MASK (UL(0x1f) << ESR_ELx_CP15_64_ISS_RT_SHIFT)
#define ESR_ELx_CP15_64_ISS_RT2_SHIFT 10
#define ESR_ELx_CP15_64_ISS_RT2_MASK (UL(0x1f) << ESR_ELx_CP15_64_ISS_RT2_SHIFT)
#define ESR_ELx_CP15_64_ISS_OP1_SHIFT 16
#define ESR_ELx_CP15_64_ISS_OP1_MASK (UL(0xf) << ESR_ELx_CP15_64_ISS_OP1_SHIFT)
#define ESR_ELx_CP15_64_ISS_CRM_SHIFT 1
#define ESR_ELx_CP15_64_ISS_CRM_MASK (UL(0xf) << ESR_ELx_CP15_64_ISS_CRM_SHIFT)
#define ESR_ELx_CP15_64_ISS_SYS_VAL(op1, crm) \
(((op1) << ESR_ELx_CP15_64_ISS_OP1_SHIFT) | \
((crm) << ESR_ELx_CP15_64_ISS_CRM_SHIFT))
#define ESR_ELx_CP15_64_ISS_SYS_MASK (ESR_ELx_CP15_64_ISS_OP1_MASK | \
ESR_ELx_CP15_64_ISS_CRM_MASK | \
ESR_ELx_CP15_64_ISS_DIR_MASK)
#define ESR_ELx_CP15_64_ISS_SYS_CNTVCT (ESR_ELx_CP15_64_ISS_SYS_VAL(1, 14) | \
ESR_ELx_CP15_64_ISS_DIR_READ)
#define ESR_ELx_CP15_32_ISS_SYS_CNTFRQ (ESR_ELx_CP15_32_ISS_SYS_VAL(0, 0, 14, 0) |\
ESR_ELx_CP15_32_ISS_DIR_READ)
#ifndef __ASSEMBLY__
#include <asm/types.h>
static inline bool esr_is_data_abort(u32 esr)
{
const u32 ec = ESR_ELx_EC(esr);
return ec == ESR_ELx_EC_DABT_LOW || ec == ESR_ELx_EC_DABT_CUR;
}
const char *esr_get_class_string(u32 esr);
#endif /* __ASSEMBLY */
#endif /* __ASM_ESR_H */
|
