1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
4 */
5
6 #ifndef _CORESIGHT_CORESIGHT_ETM_H
7 #define _CORESIGHT_CORESIGHT_ETM_H
8
9 #include <asm/local.h>
10 #include <linux/const.h>
11 #include <linux/spinlock.h>
12 #include <linux/types.h>
13 #include "coresight-priv.h"
14
15 /*
16 * Device registers:
17 * 0x000 - 0x2FC: Trace registers
18 * 0x300 - 0x314: Management registers
19 * 0x318 - 0xEFC: Trace registers
20 * 0xF00: Management registers
21 * 0xFA0 - 0xFA4: Trace registers
22 * 0xFA8 - 0xFFC: Management registers
23 */
24 /* Trace registers (0x000-0x2FC) */
25 /* Main control and configuration registers */
26 #define TRCPRGCTLR 0x004
27 #define TRCPROCSELR 0x008
28 #define TRCSTATR 0x00C
29 #define TRCCONFIGR 0x010
30 #define TRCAUXCTLR 0x018
31 #define TRCEVENTCTL0R 0x020
32 #define TRCEVENTCTL1R 0x024
33 #define TRCRSR 0x028
34 #define TRCSTALLCTLR 0x02C
35 #define TRCTSCTLR 0x030
36 #define TRCSYNCPR 0x034
37 #define TRCCCCTLR 0x038
38 #define TRCBBCTLR 0x03C
39 #define TRCTRACEIDR 0x040
40 #define TRCQCTLR 0x044
41 /* Filtering control registers */
42 #define TRCVICTLR 0x080
43 #define TRCVIIECTLR 0x084
44 #define TRCVISSCTLR 0x088
45 #define TRCVIPCSSCTLR 0x08C
46 #define TRCVDCTLR 0x0A0
47 #define TRCVDSACCTLR 0x0A4
48 #define TRCVDARCCTLR 0x0A8
49 /* Derived resources registers */
50 #define TRCSEQEVRn(n) (0x100 + (n * 4)) /* n = 0-2 */
51 #define TRCSEQRSTEVR 0x118
52 #define TRCSEQSTR 0x11C
53 #define TRCEXTINSELR 0x120
54 #define TRCEXTINSELRn(n) (0x120 + (n * 4)) /* n = 0-3 */
55 #define TRCCNTRLDVRn(n) (0x140 + (n * 4)) /* n = 0-3 */
56 #define TRCCNTCTLRn(n) (0x150 + (n * 4)) /* n = 0-3 */
57 #define TRCCNTVRn(n) (0x160 + (n * 4)) /* n = 0-3 */
58 /* ID registers */
59 #define TRCIDR8 0x180
60 #define TRCIDR9 0x184
61 #define TRCIDR10 0x188
62 #define TRCIDR11 0x18C
63 #define TRCIDR12 0x190
64 #define TRCIDR13 0x194
65 #define TRCIMSPEC0 0x1C0
66 #define TRCIMSPECn(n) (0x1C0 + (n * 4)) /* n = 1-7 */
67 #define TRCIDR0 0x1E0
68 #define TRCIDR1 0x1E4
69 #define TRCIDR2 0x1E8
70 #define TRCIDR3 0x1EC
71 #define TRCIDR4 0x1F0
72 #define TRCIDR5 0x1F4
73 #define TRCIDR6 0x1F8
74 #define TRCIDR7 0x1FC
75 /*
76 * Resource selection registers, n = 2-31.
77 * First pair (regs 0, 1) is always present and is reserved.
78 */
79 #define TRCRSCTLRn(n) (0x200 + (n * 4))
80 /* Single-shot comparator registers, n = 0-7 */
81 #define TRCSSCCRn(n) (0x280 + (n * 4))
82 #define TRCSSCSRn(n) (0x2A0 + (n * 4))
83 #define TRCSSPCICRn(n) (0x2C0 + (n * 4))
84 /* Management registers (0x300-0x314) */
85 #define TRCOSLAR 0x300
86 #define TRCOSLSR 0x304
87 #define TRCPDCR 0x310
88 #define TRCPDSR 0x314
89 /* Trace registers (0x318-0xEFC) */
90 /* Address Comparator registers n = 0-15 */
91 #define TRCACVRn(n) (0x400 + (n * 8))
92 #define TRCACATRn(n) (0x480 + (n * 8))
93 /* Data Value Comparator Value registers, n = 0-7 */
94 #define TRCDVCVRn(n) (0x500 + (n * 16))
95 #define TRCDVCMRn(n) (0x580 + (n * 16))
96 /* ContextID/Virtual ContextID comparators, n = 0-7 */
97 #define TRCCIDCVRn(n) (0x600 + (n * 8))
98 #define TRCVMIDCVRn(n) (0x640 + (n * 8))
99 #define TRCCIDCCTLR0 0x680
100 #define TRCCIDCCTLR1 0x684
101 #define TRCVMIDCCTLR0 0x688
102 #define TRCVMIDCCTLR1 0x68C
103 /* Management register (0xF00) */
104 /* Integration control registers */
105 #define TRCITCTRL 0xF00
106 /* Trace registers (0xFA0-0xFA4) */
107 /* Claim tag registers */
108 #define TRCCLAIMSET 0xFA0
109 #define TRCCLAIMCLR 0xFA4
110 /* Management registers (0xFA8-0xFFC) */
111 #define TRCDEVAFF0 0xFA8
112 #define TRCDEVAFF1 0xFAC
113 #define TRCLAR 0xFB0
114 #define TRCLSR 0xFB4
115 #define TRCAUTHSTATUS 0xFB8
116 #define TRCDEVARCH 0xFBC
117 #define TRCDEVID 0xFC8
118 #define TRCDEVTYPE 0xFCC
119 #define TRCPIDR4 0xFD0
120 #define TRCPIDR5 0xFD4
121 #define TRCPIDR6 0xFD8
122 #define TRCPIDR7 0xFDC
123 #define TRCPIDR0 0xFE0
124 #define TRCPIDR1 0xFE4
125 #define TRCPIDR2 0xFE8
126 #define TRCPIDR3 0xFEC
127 #define TRCCIDR0 0xFF0
128 #define TRCCIDR1 0xFF4
129 #define TRCCIDR2 0xFF8
130 #define TRCCIDR3 0xFFC
131
132 #define TRCRSR_TA BIT(12)
133
134 /*
135 * Bit positions of registers that are defined above, in the sysreg.h style
136 * of _MASK for multi bit fields and BIT() for single bits.
137 */
138 #define TRCIDR0_INSTP0_MASK GENMASK(2, 1)
139 #define TRCIDR0_TRCBB BIT(5)
140 #define TRCIDR0_TRCCOND BIT(6)
141 #define TRCIDR0_TRCCCI BIT(7)
142 #define TRCIDR0_RETSTACK BIT(9)
143 #define TRCIDR0_NUMEVENT_MASK GENMASK(11, 10)
144 #define TRCIDR0_QSUPP_MASK GENMASK(16, 15)
145 #define TRCIDR0_TSSIZE_MASK GENMASK(28, 24)
146
147 #define TRCIDR2_CIDSIZE_MASK GENMASK(9, 5)
148 #define TRCIDR2_VMIDSIZE_MASK GENMASK(14, 10)
149 #define TRCIDR2_CCSIZE_MASK GENMASK(28, 25)
150
151 #define TRCIDR3_CCITMIN_MASK GENMASK(11, 0)
152 #define TRCIDR3_EXLEVEL_S_MASK GENMASK(19, 16)
153 #define TRCIDR3_EXLEVEL_NS_MASK GENMASK(23, 20)
154 #define TRCIDR3_TRCERR BIT(24)
155 #define TRCIDR3_SYNCPR BIT(25)
156 #define TRCIDR3_STALLCTL BIT(26)
157 #define TRCIDR3_SYSSTALL BIT(27)
158 #define TRCIDR3_NUMPROC_LO_MASK GENMASK(30, 28)
159 #define TRCIDR3_NUMPROC_HI_MASK GENMASK(13, 12)
160 #define TRCIDR3_NOOVERFLOW BIT(31)
161
162 #define TRCIDR4_NUMACPAIRS_MASK GENMASK(3, 0)
163 #define TRCIDR4_NUMPC_MASK GENMASK(15, 12)
164 #define TRCIDR4_NUMRSPAIR_MASK GENMASK(19, 16)
165 #define TRCIDR4_NUMSSCC_MASK GENMASK(23, 20)
166 #define TRCIDR4_NUMCIDC_MASK GENMASK(27, 24)
167 #define TRCIDR4_NUMVMIDC_MASK GENMASK(31, 28)
168
169 #define TRCIDR5_NUMEXTIN_MASK GENMASK(8, 0)
170 #define TRCIDR5_TRACEIDSIZE_MASK GENMASK(21, 16)
171 #define TRCIDR5_ATBTRIG BIT(22)
172 #define TRCIDR5_LPOVERRIDE BIT(23)
173 #define TRCIDR5_NUMSEQSTATE_MASK GENMASK(27, 25)
174 #define TRCIDR5_NUMCNTR_MASK GENMASK(30, 28)
175
176 #define TRCCONFIGR_INSTP0_LOAD BIT(1)
177 #define TRCCONFIGR_INSTP0_STORE BIT(2)
178 #define TRCCONFIGR_INSTP0_LOAD_STORE (TRCCONFIGR_INSTP0_LOAD | TRCCONFIGR_INSTP0_STORE)
179 #define TRCCONFIGR_BB BIT(3)
180 #define TRCCONFIGR_CCI BIT(4)
181 #define TRCCONFIGR_CID BIT(6)
182 #define TRCCONFIGR_VMID BIT(7)
183 #define TRCCONFIGR_COND_MASK GENMASK(10, 8)
184 #define TRCCONFIGR_TS BIT(11)
185 #define TRCCONFIGR_RS BIT(12)
186 #define TRCCONFIGR_QE_W_COUNTS BIT(13)
187 #define TRCCONFIGR_QE_WO_COUNTS BIT(14)
188 #define TRCCONFIGR_VMIDOPT BIT(15)
189 #define TRCCONFIGR_DA BIT(16)
190 #define TRCCONFIGR_DV BIT(17)
191
192 #define TRCEVENTCTL1R_INSTEN_MASK GENMASK(3, 0)
193 #define TRCEVENTCTL1R_INSTEN_0 BIT(0)
194 #define TRCEVENTCTL1R_INSTEN_1 BIT(1)
195 #define TRCEVENTCTL1R_INSTEN_2 BIT(2)
196 #define TRCEVENTCTL1R_INSTEN_3 BIT(3)
197 #define TRCEVENTCTL1R_ATB BIT(11)
198 #define TRCEVENTCTL1R_LPOVERRIDE BIT(12)
199
200 #define TRCSTALLCTLR_ISTALL BIT(8)
201 #define TRCSTALLCTLR_INSTPRIORITY BIT(10)
202 #define TRCSTALLCTLR_NOOVERFLOW BIT(13)
203
204 #define TRCVICTLR_EVENT_MASK GENMASK(7, 0)
205 #define TRCVICTLR_SSSTATUS BIT(9)
206 #define TRCVICTLR_TRCRESET BIT(10)
207 #define TRCVICTLR_TRCERR BIT(11)
208 #define TRCVICTLR_EXLEVEL_MASK GENMASK(22, 16)
209 #define TRCVICTLR_EXLEVEL_S_MASK GENMASK(19, 16)
210 #define TRCVICTLR_EXLEVEL_NS_MASK GENMASK(22, 20)
211
212 #define TRCACATRn_TYPE_MASK GENMASK(1, 0)
213 #define TRCACATRn_CONTEXTTYPE_MASK GENMASK(3, 2)
214 #define TRCACATRn_CONTEXTTYPE_CTXID BIT(2)
215 #define TRCACATRn_CONTEXTTYPE_VMID BIT(3)
216 #define TRCACATRn_CONTEXT_MASK GENMASK(6, 4)
217 #define TRCACATRn_EXLEVEL_MASK GENMASK(14, 8)
218
219 #define TRCSSCSRn_STATUS BIT(31)
220 #define TRCSSCCRn_SAC_ARC_RST_MASK GENMASK(24, 0)
221
222 #define TRCSSPCICRn_PC_MASK GENMASK(7, 0)
223
224 #define TRCBBCTLR_MODE BIT(8)
225 #define TRCBBCTLR_RANGE_MASK GENMASK(7, 0)
226
227 #define TRCRSCTLRn_PAIRINV BIT(21)
228 #define TRCRSCTLRn_INV BIT(20)
229 #define TRCRSCTLRn_GROUP_MASK GENMASK(19, 16)
230 #define TRCRSCTLRn_SELECT_MASK GENMASK(15, 0)
231
232 /*
233 * System instructions to access ETM registers.
234 * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions
235 */
236 #define ETM4x_OFFSET_TO_REG(x) ((x) >> 2)
237
238 #define ETM4x_CRn(n) (((n) >> 7) & 0x7)
239 #define ETM4x_Op2(n) (((n) >> 4) & 0x7)
240 #define ETM4x_CRm(n) ((n) & 0xf)
241
242 #include <asm/sysreg.h>
243 #define ETM4x_REG_NUM_TO_SYSREG(n) \
244 sys_reg(2, 1, ETM4x_CRn(n), ETM4x_CRm(n), ETM4x_Op2(n))
245
246 #define READ_ETM4x_REG(reg) \
247 read_sysreg_s(ETM4x_REG_NUM_TO_SYSREG((reg)))
248 #define WRITE_ETM4x_REG(val, reg) \
249 write_sysreg_s(val, ETM4x_REG_NUM_TO_SYSREG((reg)))
250
251 #define read_etm4x_sysreg_const_offset(offset) \
252 READ_ETM4x_REG(ETM4x_OFFSET_TO_REG(offset))
253
254 #define write_etm4x_sysreg_const_offset(val, offset) \
255 WRITE_ETM4x_REG(val, ETM4x_OFFSET_TO_REG(offset))
256
257 #define CASE_READ(res, x) \
258 case (x): { (res) = read_etm4x_sysreg_const_offset((x)); break; }
259
260 #define CASE_WRITE(val, x) \
261 case (x): { write_etm4x_sysreg_const_offset((val), (x)); break; }
262
263 #define CASE_NOP(__unused, x) \
264 case (x): /* fall through */
265
266 #define ETE_ONLY_SYSREG_LIST(op, val) \
267 CASE_##op((val), TRCRSR) \
268 CASE_##op((val), TRCEXTINSELRn(1)) \
269 CASE_##op((val), TRCEXTINSELRn(2)) \
270 CASE_##op((val), TRCEXTINSELRn(3))
271
272 /* List of registers accessible via System instructions */
273 #define ETM4x_ONLY_SYSREG_LIST(op, val) \
274 CASE_##op((val), TRCPROCSELR) \
275 CASE_##op((val), TRCVDCTLR) \
276 CASE_##op((val), TRCVDSACCTLR) \
277 CASE_##op((val), TRCVDARCCTLR) \
278 CASE_##op((val), TRCOSLAR)
279
280 #define ETM_COMMON_SYSREG_LIST(op, val) \
281 CASE_##op((val), TRCPRGCTLR) \
282 CASE_##op((val), TRCSTATR) \
283 CASE_##op((val), TRCCONFIGR) \
284 CASE_##op((val), TRCAUXCTLR) \
285 CASE_##op((val), TRCEVENTCTL0R) \
286 CASE_##op((val), TRCEVENTCTL1R) \
287 CASE_##op((val), TRCSTALLCTLR) \
288 CASE_##op((val), TRCTSCTLR) \
289 CASE_##op((val), TRCSYNCPR) \
290 CASE_##op((val), TRCCCCTLR) \
291 CASE_##op((val), TRCBBCTLR) \
292 CASE_##op((val), TRCTRACEIDR) \
293 CASE_##op((val), TRCQCTLR) \
294 CASE_##op((val), TRCVICTLR) \
295 CASE_##op((val), TRCVIIECTLR) \
296 CASE_##op((val), TRCVISSCTLR) \
297 CASE_##op((val), TRCVIPCSSCTLR) \
298 CASE_##op((val), TRCSEQEVRn(0)) \
299 CASE_##op((val), TRCSEQEVRn(1)) \
300 CASE_##op((val), TRCSEQEVRn(2)) \
301 CASE_##op((val), TRCSEQRSTEVR) \
302 CASE_##op((val), TRCSEQSTR) \
303 CASE_##op((val), TRCEXTINSELR) \
304 CASE_##op((val), TRCCNTRLDVRn(0)) \
305 CASE_##op((val), TRCCNTRLDVRn(1)) \
306 CASE_##op((val), TRCCNTRLDVRn(2)) \
307 CASE_##op((val), TRCCNTRLDVRn(3)) \
308 CASE_##op((val), TRCCNTCTLRn(0)) \
309 CASE_##op((val), TRCCNTCTLRn(1)) \
310 CASE_##op((val), TRCCNTCTLRn(2)) \
311 CASE_##op((val), TRCCNTCTLRn(3)) \
312 CASE_##op((val), TRCCNTVRn(0)) \
313 CASE_##op((val), TRCCNTVRn(1)) \
314 CASE_##op((val), TRCCNTVRn(2)) \
315 CASE_##op((val), TRCCNTVRn(3)) \
316 CASE_##op((val), TRCIDR8) \
317 CASE_##op((val), TRCIDR9) \
318 CASE_##op((val), TRCIDR10) \
319 CASE_##op((val), TRCIDR11) \
320 CASE_##op((val), TRCIDR12) \
321 CASE_##op((val), TRCIDR13) \
322 CASE_##op((val), TRCIMSPECn(0)) \
323 CASE_##op((val), TRCIMSPECn(1)) \
324 CASE_##op((val), TRCIMSPECn(2)) \
325 CASE_##op((val), TRCIMSPECn(3)) \
326 CASE_##op((val), TRCIMSPECn(4)) \
327 CASE_##op((val), TRCIMSPECn(5)) \
328 CASE_##op((val), TRCIMSPECn(6)) \
329 CASE_##op((val), TRCIMSPECn(7)) \
330 CASE_##op((val), TRCIDR0) \
331 CASE_##op((val), TRCIDR1) \
332 CASE_##op((val), TRCIDR2) \
333 CASE_##op((val), TRCIDR3) \
334 CASE_##op((val), TRCIDR4) \
335 CASE_##op((val), TRCIDR5) \
336 CASE_##op((val), TRCIDR6) \
337 CASE_##op((val), TRCIDR7) \
338 CASE_##op((val), TRCRSCTLRn(2)) \
339 CASE_##op((val), TRCRSCTLRn(3)) \
340 CASE_##op((val), TRCRSCTLRn(4)) \
341 CASE_##op((val), TRCRSCTLRn(5)) \
342 CASE_##op((val), TRCRSCTLRn(6)) \
343 CASE_##op((val), TRCRSCTLRn(7)) \
344 CASE_##op((val), TRCRSCTLRn(8)) \
345 CASE_##op((val), TRCRSCTLRn(9)) \
346 CASE_##op((val), TRCRSCTLRn(10)) \
347 CASE_##op((val), TRCRSCTLRn(11)) \
348 CASE_##op((val), TRCRSCTLRn(12)) \
349 CASE_##op((val), TRCRSCTLRn(13)) \
350 CASE_##op((val), TRCRSCTLRn(14)) \
351 CASE_##op((val), TRCRSCTLRn(15)) \
352 CASE_##op((val), TRCRSCTLRn(16)) \
353 CASE_##op((val), TRCRSCTLRn(17)) \
354 CASE_##op((val), TRCRSCTLRn(18)) \
355 CASE_##op((val), TRCRSCTLRn(19)) \
356 CASE_##op((val), TRCRSCTLRn(20)) \
357 CASE_##op((val), TRCRSCTLRn(21)) \
358 CASE_##op((val), TRCRSCTLRn(22)) \
359 CASE_##op((val), TRCRSCTLRn(23)) \
360 CASE_##op((val), TRCRSCTLRn(24)) \
361 CASE_##op((val), TRCRSCTLRn(25)) \
362 CASE_##op((val), TRCRSCTLRn(26)) \
363 CASE_##op((val), TRCRSCTLRn(27)) \
364 CASE_##op((val), TRCRSCTLRn(28)) \
365 CASE_##op((val), TRCRSCTLRn(29)) \
366 CASE_##op((val), TRCRSCTLRn(30)) \
367 CASE_##op((val), TRCRSCTLRn(31)) \
368 CASE_##op((val), TRCSSCCRn(0)) \
369 CASE_##op((val), TRCSSCCRn(1)) \
370 CASE_##op((val), TRCSSCCRn(2)) \
371 CASE_##op((val), TRCSSCCRn(3)) \
372 CASE_##op((val), TRCSSCCRn(4)) \
373 CASE_##op((val), TRCSSCCRn(5)) \
374 CASE_##op((val), TRCSSCCRn(6)) \
375 CASE_##op((val), TRCSSCCRn(7)) \
376 CASE_##op((val), TRCSSCSRn(0)) \
377 CASE_##op((val), TRCSSCSRn(1)) \
378 CASE_##op((val), TRCSSCSRn(2)) \
379 CASE_##op((val), TRCSSCSRn(3)) \
380 CASE_##op((val), TRCSSCSRn(4)) \
381 CASE_##op((val), TRCSSCSRn(5)) \
382 CASE_##op((val), TRCSSCSRn(6)) \
383 CASE_##op((val), TRCSSCSRn(7)) \
384 CASE_##op((val), TRCSSPCICRn(0)) \
385 CASE_##op((val), TRCSSPCICRn(1)) \
386 CASE_##op((val), TRCSSPCICRn(2)) \
387 CASE_##op((val), TRCSSPCICRn(3)) \
388 CASE_##op((val), TRCSSPCICRn(4)) \
389 CASE_##op((val), TRCSSPCICRn(5)) \
390 CASE_##op((val), TRCSSPCICRn(6)) \
391 CASE_##op((val), TRCSSPCICRn(7)) \
392 CASE_##op((val), TRCOSLSR) \
393 CASE_##op((val), TRCACVRn(0)) \
394 CASE_##op((val), TRCACVRn(1)) \
395 CASE_##op((val), TRCACVRn(2)) \
396 CASE_##op((val), TRCACVRn(3)) \
397 CASE_##op((val), TRCACVRn(4)) \
398 CASE_##op((val), TRCACVRn(5)) \
399 CASE_##op((val), TRCACVRn(6)) \
400 CASE_##op((val), TRCACVRn(7)) \
401 CASE_##op((val), TRCACVRn(8)) \
402 CASE_##op((val), TRCACVRn(9)) \
403 CASE_##op((val), TRCACVRn(10)) \
404 CASE_##op((val), TRCACVRn(11)) \
405 CASE_##op((val), TRCACVRn(12)) \
406 CASE_##op((val), TRCACVRn(13)) \
407 CASE_##op((val), TRCACVRn(14)) \
408 CASE_##op((val), TRCACVRn(15)) \
409 CASE_##op((val), TRCACATRn(0)) \
410 CASE_##op((val), TRCACATRn(1)) \
411 CASE_##op((val), TRCACATRn(2)) \
412 CASE_##op((val), TRCACATRn(3)) \
413 CASE_##op((val), TRCACATRn(4)) \
414 CASE_##op((val), TRCACATRn(5)) \
415 CASE_##op((val), TRCACATRn(6)) \
416 CASE_##op((val), TRCACATRn(7)) \
417 CASE_##op((val), TRCACATRn(8)) \
418 CASE_##op((val), TRCACATRn(9)) \
419 CASE_##op((val), TRCACATRn(10)) \
420 CASE_##op((val), TRCACATRn(11)) \
421 CASE_##op((val), TRCACATRn(12)) \
422 CASE_##op((val), TRCACATRn(13)) \
423 CASE_##op((val), TRCACATRn(14)) \
424 CASE_##op((val), TRCACATRn(15)) \
425 CASE_##op((val), TRCDVCVRn(0)) \
426 CASE_##op((val), TRCDVCVRn(1)) \
427 CASE_##op((val), TRCDVCVRn(2)) \
428 CASE_##op((val), TRCDVCVRn(3)) \
429 CASE_##op((val), TRCDVCVRn(4)) \
430 CASE_##op((val), TRCDVCVRn(5)) \
431 CASE_##op((val), TRCDVCVRn(6)) \
432 CASE_##op((val), TRCDVCVRn(7)) \
433 CASE_##op((val), TRCDVCMRn(0)) \
434 CASE_##op((val), TRCDVCMRn(1)) \
435 CASE_##op((val), TRCDVCMRn(2)) \
436 CASE_##op((val), TRCDVCMRn(3)) \
437 CASE_##op((val), TRCDVCMRn(4)) \
438 CASE_##op((val), TRCDVCMRn(5)) \
439 CASE_##op((val), TRCDVCMRn(6)) \
440 CASE_##op((val), TRCDVCMRn(7)) \
441 CASE_##op((val), TRCCIDCVRn(0)) \
442 CASE_##op((val), TRCCIDCVRn(1)) \
443 CASE_##op((val), TRCCIDCVRn(2)) \
444 CASE_##op((val), TRCCIDCVRn(3)) \
445 CASE_##op((val), TRCCIDCVRn(4)) \
446 CASE_##op((val), TRCCIDCVRn(5)) \
447 CASE_##op((val), TRCCIDCVRn(6)) \
448 CASE_##op((val), TRCCIDCVRn(7)) \
449 CASE_##op((val), TRCVMIDCVRn(0)) \
450 CASE_##op((val), TRCVMIDCVRn(1)) \
451 CASE_##op((val), TRCVMIDCVRn(2)) \
452 CASE_##op((val), TRCVMIDCVRn(3)) \
453 CASE_##op((val), TRCVMIDCVRn(4)) \
454 CASE_##op((val), TRCVMIDCVRn(5)) \
455 CASE_##op((val), TRCVMIDCVRn(6)) \
456 CASE_##op((val), TRCVMIDCVRn(7)) \
457 CASE_##op((val), TRCCIDCCTLR0) \
458 CASE_##op((val), TRCCIDCCTLR1) \
459 CASE_##op((val), TRCVMIDCCTLR0) \
460 CASE_##op((val), TRCVMIDCCTLR1) \
461 CASE_##op((val), TRCCLAIMSET) \
462 CASE_##op((val), TRCCLAIMCLR) \
463 CASE_##op((val), TRCAUTHSTATUS) \
464 CASE_##op((val), TRCDEVARCH) \
465 CASE_##op((val), TRCDEVID)
466
467 /* List of registers only accessible via memory-mapped interface */
468 #define ETM_MMAP_LIST(op, val) \
469 CASE_##op((val), TRCDEVTYPE) \
470 CASE_##op((val), TRCPDCR) \
471 CASE_##op((val), TRCPDSR) \
472 CASE_##op((val), TRCDEVAFF0) \
473 CASE_##op((val), TRCDEVAFF1) \
474 CASE_##op((val), TRCLAR) \
475 CASE_##op((val), TRCLSR) \
476 CASE_##op((val), TRCITCTRL) \
477 CASE_##op((val), TRCPIDR4) \
478 CASE_##op((val), TRCPIDR0) \
479 CASE_##op((val), TRCPIDR1) \
480 CASE_##op((val), TRCPIDR2) \
481 CASE_##op((val), TRCPIDR3)
482
483 #define ETM4x_READ_SYSREG_CASES(res) \
484 ETM_COMMON_SYSREG_LIST(READ, (res)) \
485 ETM4x_ONLY_SYSREG_LIST(READ, (res))
486
487 #define ETM4x_WRITE_SYSREG_CASES(val) \
488 ETM_COMMON_SYSREG_LIST(WRITE, (val)) \
489 ETM4x_ONLY_SYSREG_LIST(WRITE, (val))
490
491 #define ETM_COMMON_SYSREG_LIST_CASES \
492 ETM_COMMON_SYSREG_LIST(NOP, __unused)
493
494 #define ETM4x_ONLY_SYSREG_LIST_CASES \
495 ETM4x_ONLY_SYSREG_LIST(NOP, __unused)
496
497 #define ETM4x_SYSREG_LIST_CASES \
498 ETM_COMMON_SYSREG_LIST_CASES \
499 ETM4x_ONLY_SYSREG_LIST(NOP, __unused)
500
501 #define ETM4x_MMAP_LIST_CASES ETM_MMAP_LIST(NOP, __unused)
502
503 /* ETE only supports system register access */
504 #define ETE_READ_CASES(res) \
505 ETM_COMMON_SYSREG_LIST(READ, (res)) \
506 ETE_ONLY_SYSREG_LIST(READ, (res))
507
508 #define ETE_WRITE_CASES(val) \
509 ETM_COMMON_SYSREG_LIST(WRITE, (val)) \
510 ETE_ONLY_SYSREG_LIST(WRITE, (val))
511
512 #define ETE_ONLY_SYSREG_LIST_CASES \
513 ETE_ONLY_SYSREG_LIST(NOP, __unused)
514
515 #define read_etm4x_sysreg_offset(offset, _64bit) \
516 ({ \
517 u64 __val; \
518 \
519 if (__is_constexpr((offset))) \
520 __val = read_etm4x_sysreg_const_offset((offset)); \
521 else \
522 __val = etm4x_sysreg_read((offset), true, (_64bit)); \
523 __val; \
524 })
525
526 #define write_etm4x_sysreg_offset(val, offset, _64bit) \
527 do { \
528 if (__builtin_constant_p((offset))) \
529 write_etm4x_sysreg_const_offset((val), \
530 (offset)); \
531 else \
532 etm4x_sysreg_write((val), (offset), true, \
533 (_64bit)); \
534 } while (0)
535
536
537 #define etm4x_relaxed_read32(csa, offset) \
538 ((u32)((csa)->io_mem ? \
539 readl_relaxed((csa)->base + (offset)) : \
540 read_etm4x_sysreg_offset((offset), false)))
541
542 #define etm4x_relaxed_read64(csa, offset) \
543 ((u64)((csa)->io_mem ? \
544 readq_relaxed((csa)->base + (offset)) : \
545 read_etm4x_sysreg_offset((offset), true)))
546
547 #define etm4x_read32(csa, offset) \
548 ({ \
549 u32 __val = etm4x_relaxed_read32((csa), (offset)); \
550 __io_ar(__val); \
551 __val; \
552 })
553
554 #define etm4x_read64(csa, offset) \
555 ({ \
556 u64 __val = etm4x_relaxed_read64((csa), (offset)); \
557 __io_ar(__val); \
558 __val; \
559 })
560
561 #define etm4x_relaxed_write32(csa, val, offset) \
562 do { \
563 if ((csa)->io_mem) \
564 writel_relaxed((val), (csa)->base + (offset)); \
565 else \
566 write_etm4x_sysreg_offset((val), (offset), \
567 false); \
568 } while (0)
569
570 #define etm4x_relaxed_write64(csa, val, offset) \
571 do { \
572 if ((csa)->io_mem) \
573 writeq_relaxed((val), (csa)->base + (offset)); \
574 else \
575 write_etm4x_sysreg_offset((val), (offset), \
576 true); \
577 } while (0)
578
579 #define etm4x_write32(csa, val, offset) \
580 do { \
581 __io_bw(); \
582 etm4x_relaxed_write32((csa), (val), (offset)); \
583 } while (0)
584
585 #define etm4x_write64(csa, val, offset) \
586 do { \
587 __io_bw(); \
588 etm4x_relaxed_write64((csa), (val), (offset)); \
589 } while (0)
590
591
592 /* ETMv4 resources */
593 #define ETM_MAX_NR_PE 8
594 #define ETMv4_MAX_CNTR 4
595 #define ETM_MAX_SEQ_STATES 4
596 #define ETM_MAX_EXT_INP_SEL 4
597 #define ETM_MAX_EXT_INP 256
598 #define ETM_MAX_EXT_OUT 4
599 #define ETM_MAX_SINGLE_ADDR_CMP 16
600 #define ETM_MAX_ADDR_RANGE_CMP (ETM_MAX_SINGLE_ADDR_CMP / 2)
601 #define ETM_MAX_DATA_VAL_CMP 8
602 #define ETMv4_MAX_CTXID_CMP 8
603 #define ETM_MAX_VMID_CMP 8
604 #define ETM_MAX_PE_CMP 8
605 #define ETM_MAX_RES_SEL 32
606 #define ETM_MAX_SS_CMP 8
607
608 #define ETMv4_SYNC_MASK 0x1F
609 #define ETM_CYC_THRESHOLD_MASK 0xFFF
610 #define ETM_CYC_THRESHOLD_DEFAULT 0x100
611 #define ETMv4_EVENT_MASK 0xFF
612 #define ETM_CNTR_MAX_VAL 0xFFFF
613 #define ETM_TRACEID_MASK 0x3f
614
615 /* ETMv4 programming modes */
616 #define ETM_MODE_EXCLUDE BIT(0)
617 #define ETM_MODE_LOAD BIT(1)
618 #define ETM_MODE_STORE BIT(2)
619 #define ETM_MODE_LOAD_STORE BIT(3)
620 #define ETM_MODE_BB BIT(4)
621 #define ETMv4_MODE_CYCACC BIT(5)
622 #define ETMv4_MODE_CTXID BIT(6)
623 #define ETM_MODE_VMID BIT(7)
624 #define ETM_MODE_COND(val) BMVAL(val, 8, 10)
625 #define ETMv4_MODE_TIMESTAMP BIT(11)
626 #define ETM_MODE_RETURNSTACK BIT(12)
627 #define ETM_MODE_QELEM(val) BMVAL(val, 13, 14)
628 #define ETM_MODE_DATA_TRACE_ADDR BIT(15)
629 #define ETM_MODE_DATA_TRACE_VAL BIT(16)
630 #define ETM_MODE_ISTALL BIT(17)
631 #define ETM_MODE_DSTALL BIT(18)
632 #define ETM_MODE_ATB_TRIGGER BIT(19)
633 #define ETM_MODE_LPOVERRIDE BIT(20)
634 #define ETM_MODE_ISTALL_EN BIT(21)
635 #define ETM_MODE_DSTALL_EN BIT(22)
636 #define ETM_MODE_INSTPRIO BIT(23)
637 #define ETM_MODE_NOOVERFLOW BIT(24)
638 #define ETM_MODE_TRACE_RESET BIT(25)
639 #define ETM_MODE_TRACE_ERR BIT(26)
640 #define ETM_MODE_VIEWINST_STARTSTOP BIT(27)
641 #define ETMv4_MODE_ALL (GENMASK(27, 0) | \
642 ETM_MODE_EXCL_KERN | \
643 ETM_MODE_EXCL_USER)
644
645 /*
646 * TRCOSLSR.OSLM advertises the OS Lock model.
647 * OSLM[2:0] = TRCOSLSR[4:3,0]
648 *
649 * 0b000 - Trace OS Lock is not implemented.
650 * 0b010 - Trace OS Lock is implemented.
651 * 0b100 - Trace OS Lock is not implemented, unit is controlled by PE OS Lock.
652 */
653 #define ETM_OSLOCK_NI 0b000
654 #define ETM_OSLOCK_PRESENT 0b010
655 #define ETM_OSLOCK_PE 0b100
656
657 #define ETM_OSLSR_OSLM(oslsr) ((((oslsr) & GENMASK(4, 3)) >> 2) | (oslsr & 0x1))
658
659 /*
660 * TRCDEVARCH Bit field definitions
661 * Bits[31:21] - ARCHITECT = Always Arm Ltd.
662 * * Bits[31:28] = 0x4
663 * * Bits[27:21] = 0b0111011
664 * Bit[20] - PRESENT, Indicates the presence of this register.
665 *
666 * Bit[19:16] - REVISION, Revision of the architecture.
667 *
668 * Bit[15:0] - ARCHID, Identifies this component as an ETM
669 * * Bits[15:12] - architecture version of ETM
670 * * = 4 for ETMv4
671 * * Bits[11:0] = 0xA13, architecture part number for ETM.
672 */
673 #define ETM_DEVARCH_ARCHITECT_MASK GENMASK(31, 21)
674 #define ETM_DEVARCH_ARCHITECT_ARM ((0x4 << 28) | (0b0111011 << 21))
675 #define ETM_DEVARCH_PRESENT BIT(20)
676 #define ETM_DEVARCH_REVISION_SHIFT 16
677 #define ETM_DEVARCH_REVISION_MASK GENMASK(19, 16)
678 #define ETM_DEVARCH_REVISION(x) \
679 (((x) & ETM_DEVARCH_REVISION_MASK) >> ETM_DEVARCH_REVISION_SHIFT)
680 #define ETM_DEVARCH_ARCHID_MASK GENMASK(15, 0)
681 #define ETM_DEVARCH_ARCHID_ARCH_VER_SHIFT 12
682 #define ETM_DEVARCH_ARCHID_ARCH_VER_MASK GENMASK(15, 12)
683 #define ETM_DEVARCH_ARCHID_ARCH_VER(x) \
684 (((x) & ETM_DEVARCH_ARCHID_ARCH_VER_MASK) >> ETM_DEVARCH_ARCHID_ARCH_VER_SHIFT)
685
686 #define ETM_DEVARCH_MAKE_ARCHID_ARCH_VER(ver) \
687 (((ver) << ETM_DEVARCH_ARCHID_ARCH_VER_SHIFT) & ETM_DEVARCH_ARCHID_ARCH_VER_MASK)
688
689 #define ETM_DEVARCH_ARCHID_ARCH_PART(x) ((x) & 0xfffUL)
690
691 #define ETM_DEVARCH_MAKE_ARCHID(major) \
692 ((ETM_DEVARCH_MAKE_ARCHID_ARCH_VER(major)) | ETM_DEVARCH_ARCHID_ARCH_PART(0xA13))
693
694 #define ETM_DEVARCH_ARCHID_ETMv4x ETM_DEVARCH_MAKE_ARCHID(0x4)
695 #define ETM_DEVARCH_ARCHID_ETE ETM_DEVARCH_MAKE_ARCHID(0x5)
696
697 #define ETM_DEVARCH_ID_MASK \
698 (ETM_DEVARCH_ARCHITECT_MASK | ETM_DEVARCH_ARCHID_MASK | ETM_DEVARCH_PRESENT)
699 #define ETM_DEVARCH_ETMv4x_ARCH \
700 (ETM_DEVARCH_ARCHITECT_ARM | ETM_DEVARCH_ARCHID_ETMv4x | ETM_DEVARCH_PRESENT)
701 #define ETM_DEVARCH_ETE_ARCH \
702 (ETM_DEVARCH_ARCHITECT_ARM | ETM_DEVARCH_ARCHID_ETE | ETM_DEVARCH_PRESENT)
703
704 #define TRCSTATR_IDLE_BIT 0
705 #define TRCSTATR_PMSTABLE_BIT 1
706 #define ETM_DEFAULT_ADDR_COMP 0
707
708 #define TRCSSCSRn_PC BIT(3)
709
710 /* PowerDown Control Register bits */
711 #define TRCPDCR_PU BIT(3)
712
713 #define TRCACATR_EXLEVEL_SHIFT 8
714
715 /*
716 * Exception level mask for Secure and Non-Secure ELs.
717 * ETM defines the bits for EL control (e.g, TRVICTLR, TRCACTRn).
718 * The Secure and Non-Secure ELs are always to gether.
719 * Non-secure EL3 is never implemented.
720 * We use the following generic mask as they appear in different
721 * registers and this can be shifted for the appropriate
722 * fields.
723 */
724 #define ETM_EXLEVEL_S_APP BIT(0) /* Secure EL0 */
725 #define ETM_EXLEVEL_S_OS BIT(1) /* Secure EL1 */
726 #define ETM_EXLEVEL_S_HYP BIT(2) /* Secure EL2 */
727 #define ETM_EXLEVEL_S_MON BIT(3) /* Secure EL3/Monitor */
728 #define ETM_EXLEVEL_NS_APP BIT(4) /* NonSecure EL0 */
729 #define ETM_EXLEVEL_NS_OS BIT(5) /* NonSecure EL1 */
730 #define ETM_EXLEVEL_NS_HYP BIT(6) /* NonSecure EL2 */
731
732 /* access level controls in TRCACATRn */
733 #define TRCACATR_EXLEVEL_SHIFT 8
734
735 #define ETM_TRCIDR1_ARCH_MAJOR_SHIFT 8
736 #define ETM_TRCIDR1_ARCH_MAJOR_MASK (0xfU << ETM_TRCIDR1_ARCH_MAJOR_SHIFT)
737 #define ETM_TRCIDR1_ARCH_MAJOR(x) \
738 (((x) & ETM_TRCIDR1_ARCH_MAJOR_MASK) >> ETM_TRCIDR1_ARCH_MAJOR_SHIFT)
739 #define ETM_TRCIDR1_ARCH_MINOR_SHIFT 4
740 #define ETM_TRCIDR1_ARCH_MINOR_MASK (0xfU << ETM_TRCIDR1_ARCH_MINOR_SHIFT)
741 #define ETM_TRCIDR1_ARCH_MINOR(x) \
742 (((x) & ETM_TRCIDR1_ARCH_MINOR_MASK) >> ETM_TRCIDR1_ARCH_MINOR_SHIFT)
743 #define ETM_TRCIDR1_ARCH_SHIFT ETM_TRCIDR1_ARCH_MINOR_SHIFT
744 #define ETM_TRCIDR1_ARCH_MASK \
745 (ETM_TRCIDR1_ARCH_MAJOR_MASK | ETM_TRCIDR1_ARCH_MINOR_MASK)
746
747 #define ETM_TRCIDR1_ARCH_ETMv4 0x4
748
749 /*
750 * Driver representation of the ETM architecture.
751 * The version of an ETM component can be detected from
752 *
753 * TRCDEVARCH - CoreSight architected register
754 * - Bits[15:12] - Major version
755 * - Bits[19:16] - Minor version
756 *
757 * We must rely only on TRCDEVARCH for the version information. Even though,
758 * TRCIDR1 also provides the architecture version, it is a "Trace" register
759 * and as such must be accessed only with Trace power domain ON. This may
760 * not be available at probe time.
761 *
762 * Now to make certain decisions easier based on the version
763 * we use an internal representation of the version in the
764 * driver, as follows :
765 *
766 * ETM_ARCH_VERSION[7:0], where :
767 * Bits[7:4] - Major version
768 * Bits[3:0] - Minro version
769 */
770 #define ETM_ARCH_VERSION(major, minor) \
771 ((((major) & 0xfU) << 4) | (((minor) & 0xfU)))
772 #define ETM_ARCH_MAJOR_VERSION(arch) (((arch) >> 4) & 0xfU)
773 #define ETM_ARCH_MINOR_VERSION(arch) ((arch) & 0xfU)
774
775 #define ETM_ARCH_V4 ETM_ARCH_VERSION(4, 0)
776 #define ETM_ARCH_ETE ETM_ARCH_VERSION(5, 0)
777
778 /* Interpretation of resource numbers change at ETM v4.3 architecture */
779 #define ETM_ARCH_V4_3 ETM_ARCH_VERSION(4, 3)
780
etm_devarch_to_arch(u32 devarch)781 static inline u8 etm_devarch_to_arch(u32 devarch)
782 {
783 return ETM_ARCH_VERSION(ETM_DEVARCH_ARCHID_ARCH_VER(devarch),
784 ETM_DEVARCH_REVISION(devarch));
785 }
786
787 enum etm_impdef_type {
788 ETM4_IMPDEF_HISI_CORE_COMMIT,
789 ETM4_IMPDEF_FEATURE_MAX,
790 };
791
792 /**
793 * struct etmv4_config - configuration information related to an ETMv4
794 * @mode: Controls various modes supported by this ETM.
795 * @pe_sel: Controls which PE to trace.
796 * @cfg: Controls the tracing options.
797 * @eventctrl0: Controls the tracing of arbitrary events.
798 * @eventctrl1: Controls the behavior of the events that @event_ctrl0 selects.
799 * @stallctl: If functionality that prevents trace unit buffer overflows
800 * is available.
801 * @ts_ctrl: Controls the insertion of global timestamps in the
802 * trace streams.
803 * @syncfreq: Controls how often trace synchronization requests occur.
804 * the TRCCCCTLR register.
805 * @ccctlr: Sets the threshold value for cycle counting.
806 * @vinst_ctrl: Controls instruction trace filtering.
807 * @viiectlr: Set or read, the address range comparators.
808 * @vissctlr: Set, or read, the single address comparators that control the
809 * ViewInst start-stop logic.
810 * @vipcssctlr: Set, or read, which PE comparator inputs can control the
811 * ViewInst start-stop logic.
812 * @seq_idx: Sequencor index selector.
813 * @seq_ctrl: Control for the sequencer state transition control register.
814 * @seq_rst: Moves the sequencer to state 0 when a programmed event occurs.
815 * @seq_state: Set, or read the sequencer state.
816 * @cntr_idx: Counter index seletor.
817 * @cntrldvr: Sets or returns the reload count value for a counter.
818 * @cntr_ctrl: Controls the operation of a counter.
819 * @cntr_val: Sets or returns the value for a counter.
820 * @res_idx: Resource index selector.
821 * @res_ctrl: Controls the selection of the resources in the trace unit.
822 * @ss_idx: Single-shot index selector.
823 * @ss_ctrl: Controls the corresponding single-shot comparator resource.
824 * @ss_status: The status of the corresponding single-shot comparator.
825 * @ss_pe_cmp: Selects the PE comparator inputs for Single-shot control.
826 * @addr_idx: Address comparator index selector.
827 * @addr_val: Value for address comparator.
828 * @addr_acc: Address comparator access type.
829 * @addr_type: Current status of the comparator register.
830 * @ctxid_idx: Context ID index selector.
831 * @ctxid_pid: Value of the context ID comparator.
832 * @ctxid_mask0:Context ID comparator mask for comparator 0-3.
833 * @ctxid_mask1:Context ID comparator mask for comparator 4-7.
834 * @vmid_idx: VM ID index selector.
835 * @vmid_val: Value of the VM ID comparator.
836 * @vmid_mask0: VM ID comparator mask for comparator 0-3.
837 * @vmid_mask1: VM ID comparator mask for comparator 4-7.
838 * @ext_inp: External input selection.
839 * @s_ex_level: Secure ELs where tracing is supported.
840 */
841 struct etmv4_config {
842 u32 mode;
843 u32 pe_sel;
844 u32 cfg;
845 u32 eventctrl0;
846 u32 eventctrl1;
847 u32 stall_ctrl;
848 u32 ts_ctrl;
849 u32 syncfreq;
850 u32 ccctlr;
851 u32 bb_ctrl;
852 u32 vinst_ctrl;
853 u32 viiectlr;
854 u32 vissctlr;
855 u32 vipcssctlr;
856 u8 seq_idx;
857 u32 seq_ctrl[ETM_MAX_SEQ_STATES];
858 u32 seq_rst;
859 u32 seq_state;
860 u8 cntr_idx;
861 u32 cntrldvr[ETMv4_MAX_CNTR];
862 u32 cntr_ctrl[ETMv4_MAX_CNTR];
863 u32 cntr_val[ETMv4_MAX_CNTR];
864 u8 res_idx;
865 u32 res_ctrl[ETM_MAX_RES_SEL];
866 u8 ss_idx;
867 u32 ss_ctrl[ETM_MAX_SS_CMP];
868 u32 ss_status[ETM_MAX_SS_CMP];
869 u32 ss_pe_cmp[ETM_MAX_SS_CMP];
870 u8 addr_idx;
871 u64 addr_val[ETM_MAX_SINGLE_ADDR_CMP];
872 u64 addr_acc[ETM_MAX_SINGLE_ADDR_CMP];
873 u8 addr_type[ETM_MAX_SINGLE_ADDR_CMP];
874 u8 ctxid_idx;
875 u64 ctxid_pid[ETMv4_MAX_CTXID_CMP];
876 u32 ctxid_mask0;
877 u32 ctxid_mask1;
878 u8 vmid_idx;
879 u64 vmid_val[ETM_MAX_VMID_CMP];
880 u32 vmid_mask0;
881 u32 vmid_mask1;
882 u32 ext_inp;
883 u8 s_ex_level;
884 };
885
886 /**
887 * struct etm4_save_state - state to be preserved when ETM is without power
888 */
889 struct etmv4_save_state {
890 u32 trcprgctlr;
891 u32 trcprocselr;
892 u32 trcconfigr;
893 u32 trcauxctlr;
894 u32 trceventctl0r;
895 u32 trceventctl1r;
896 u32 trcstallctlr;
897 u32 trctsctlr;
898 u32 trcsyncpr;
899 u32 trcccctlr;
900 u32 trcbbctlr;
901 u32 trctraceidr;
902 u32 trcqctlr;
903
904 u32 trcvictlr;
905 u32 trcviiectlr;
906 u32 trcvissctlr;
907 u32 trcvipcssctlr;
908 u32 trcvdctlr;
909 u32 trcvdsacctlr;
910 u32 trcvdarcctlr;
911
912 u32 trcseqevr[ETM_MAX_SEQ_STATES];
913 u32 trcseqrstevr;
914 u32 trcseqstr;
915 u32 trcextinselr;
916 u32 trccntrldvr[ETMv4_MAX_CNTR];
917 u32 trccntctlr[ETMv4_MAX_CNTR];
918 u32 trccntvr[ETMv4_MAX_CNTR];
919
920 u32 trcrsctlr[ETM_MAX_RES_SEL];
921
922 u32 trcssccr[ETM_MAX_SS_CMP];
923 u32 trcsscsr[ETM_MAX_SS_CMP];
924 u32 trcsspcicr[ETM_MAX_SS_CMP];
925
926 u64 trcacvr[ETM_MAX_SINGLE_ADDR_CMP];
927 u64 trcacatr[ETM_MAX_SINGLE_ADDR_CMP];
928 u64 trccidcvr[ETMv4_MAX_CTXID_CMP];
929 u64 trcvmidcvr[ETM_MAX_VMID_CMP];
930 u32 trccidcctlr0;
931 u32 trccidcctlr1;
932 u32 trcvmidcctlr0;
933 u32 trcvmidcctlr1;
934
935 u32 trcclaimset;
936
937 u32 cntr_val[ETMv4_MAX_CNTR];
938 u32 seq_state;
939 u32 vinst_ctrl;
940 u32 ss_status[ETM_MAX_SS_CMP];
941
942 u32 trcpdcr;
943 };
944
945 /**
946 * struct etm4_drvdata - specifics associated to an ETM component
947 * @base: Memory mapped base address for this component.
948 * @csdev: Component vitals needed by the framework.
949 * @spinlock: Only one at a time pls.
950 * @mode: This tracer's mode, i.e sysFS, Perf or disabled.
951 * @cpu: The cpu this component is affined to.
952 * @arch: ETM architecture version.
953 * @nr_pe: The number of processing entity available for tracing.
954 * @nr_pe_cmp: The number of processing entity comparator inputs that are
955 * available for tracing.
956 * @nr_addr_cmp:Number of pairs of address comparators available
957 * as found in ETMIDR4 0-3.
958 * @nr_cntr: Number of counters as found in ETMIDR5 bit 28-30.
959 * @nr_ext_inp: Number of external input.
960 * @numcidc: Number of contextID comparators.
961 * @numvmidc: Number of VMID comparators.
962 * @nrseqstate: The number of sequencer states that are implemented.
963 * @nr_event: Indicates how many events the trace unit support.
964 * @nr_resource:The number of resource selection pairs available for tracing.
965 * @nr_ss_cmp: Number of single-shot comparator controls that are available.
966 * @trcid: value of the current ID for this component.
967 * @trcid_size: Indicates the trace ID width.
968 * @ts_size: Global timestamp size field.
969 * @ctxid_size: Size of the context ID field to consider.
970 * @vmid_size: Size of the VM ID comparator to consider.
971 * @ccsize: Indicates the size of the cycle counter in bits.
972 * @ccitmin: minimum value that can be programmed in
973 * @s_ex_level: In secure state, indicates whether instruction tracing is
974 * supported for the corresponding Exception level.
975 * @ns_ex_level:In non-secure state, indicates whether instruction tracing is
976 * supported for the corresponding Exception level.
977 * @sticky_enable: true if ETM base configuration has been done.
978 * @boot_enable:True if we should start tracing at boot time.
979 * @os_unlock: True if access to management registers is allowed.
980 * @instrp0: Tracing of load and store instructions
981 * as P0 elements is supported.
982 * @trcbb: Indicates if the trace unit supports branch broadcast tracing.
983 * @trccond: If the trace unit supports conditional
984 * instruction tracing.
985 * @retstack: Indicates if the implementation supports a return stack.
986 * @trccci: Indicates if the trace unit supports cycle counting
987 * for instruction.
988 * @q_support: Q element support characteristics.
989 * @trc_error: Whether a trace unit can trace a system
990 * error exception.
991 * @syncpr: Indicates if an implementation has a fixed
992 * synchronization period.
993 * @stall_ctrl: Enables trace unit functionality that prevents trace
994 * unit buffer overflows.
995 * @sysstall: Does the system support stall control of the PE?
996 * @nooverflow: Indicate if overflow prevention is supported.
997 * @atbtrig: If the implementation can support ATB triggers
998 * @lpoverride: If the implementation can support low-power state over.
999 * @trfcr: If the CPU supports FEAT_TRF, value of the TRFCR_ELx that
1000 * allows tracing at all ELs. We don't want to compute this
1001 * at runtime, due to the additional setting of TRFCR_CX when
1002 * in EL2. Otherwise, 0.
1003 * @config: structure holding configuration parameters.
1004 * @save_trfcr: Saved TRFCR_EL1 register during a CPU PM event.
1005 * @save_state: State to be preserved across power loss
1006 * @state_needs_restore: True when there is context to restore after PM exit
1007 * @skip_power_up: Indicates if an implementation can skip powering up
1008 * the trace unit.
1009 * @arch_features: Bitmap of arch features of etmv4 devices.
1010 */
1011 struct etmv4_drvdata {
1012 void __iomem *base;
1013 struct coresight_device *csdev;
1014 spinlock_t spinlock;
1015 local_t mode;
1016 int cpu;
1017 u8 arch;
1018 u8 nr_pe;
1019 u8 nr_pe_cmp;
1020 u8 nr_addr_cmp;
1021 u8 nr_cntr;
1022 u8 nr_ext_inp;
1023 u8 numcidc;
1024 u8 numvmidc;
1025 u8 nrseqstate;
1026 u8 nr_event;
1027 u8 nr_resource;
1028 u8 nr_ss_cmp;
1029 u8 trcid;
1030 u8 trcid_size;
1031 u8 ts_size;
1032 u8 ctxid_size;
1033 u8 vmid_size;
1034 u8 ccsize;
1035 u16 ccitmin;
1036 u8 s_ex_level;
1037 u8 ns_ex_level;
1038 u8 q_support;
1039 u8 os_lock_model;
1040 bool sticky_enable;
1041 bool boot_enable;
1042 bool os_unlock;
1043 bool instrp0;
1044 bool trcbb;
1045 bool trccond;
1046 bool retstack;
1047 bool trccci;
1048 bool trc_error;
1049 bool syncpr;
1050 bool stallctl;
1051 bool sysstall;
1052 bool nooverflow;
1053 bool atbtrig;
1054 bool lpoverride;
1055 u64 trfcr;
1056 struct etmv4_config config;
1057 u64 save_trfcr;
1058 struct etmv4_save_state *save_state;
1059 bool state_needs_restore;
1060 bool skip_power_up;
1061 DECLARE_BITMAP(arch_features, ETM4_IMPDEF_FEATURE_MAX);
1062 };
1063
1064 /* Address comparator access types */
1065 enum etm_addr_acctype {
1066 TRCACATRn_TYPE_ADDR,
1067 TRCACATRn_TYPE_DATA_LOAD_ADDR,
1068 TRCACATRn_TYPE_DATA_STORE_ADDR,
1069 TRCACATRn_TYPE_DATA_LOAD_STORE_ADDR,
1070 };
1071
1072 /* Address comparator context types */
1073 enum etm_addr_ctxtype {
1074 ETM_CTX_NONE,
1075 ETM_CTX_CTXID,
1076 ETM_CTX_VMID,
1077 ETM_CTX_CTXID_VMID,
1078 };
1079
1080 extern const struct attribute_group *coresight_etmv4_groups[];
1081 void etm4_config_trace_mode(struct etmv4_config *config);
1082
1083 u64 etm4x_sysreg_read(u32 offset, bool _relaxed, bool _64bit);
1084 void etm4x_sysreg_write(u64 val, u32 offset, bool _relaxed, bool _64bit);
1085
etm4x_is_ete(struct etmv4_drvdata * drvdata)1086 static inline bool etm4x_is_ete(struct etmv4_drvdata *drvdata)
1087 {
1088 return drvdata->arch >= ETM_ARCH_ETE;
1089 }
1090 #endif
1091