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/spinlock.h>
11 #include <linux/types.h>
12 #include "coresight-priv.h"
13
14 /*
15 * Device registers:
16 * 0x000 - 0x2FC: Trace registers
17 * 0x300 - 0x314: Management registers
18 * 0x318 - 0xEFC: Trace registers
19 * 0xF00: Management registers
20 * 0xFA0 - 0xFA4: Trace registers
21 * 0xFA8 - 0xFFC: Management registers
22 */
23 /* Trace registers (0x000-0x2FC) */
24 /* Main control and configuration registers */
25 #define TRCPRGCTLR 0x004
26 #define TRCPROCSELR 0x008
27 #define TRCSTATR 0x00C
28 #define TRCCONFIGR 0x010
29 #define TRCAUXCTLR 0x018
30 #define TRCEVENTCTL0R 0x020
31 #define TRCEVENTCTL1R 0x024
32 #define TRCRSR 0x028
33 #define TRCSTALLCTLR 0x02C
34 #define TRCTSCTLR 0x030
35 #define TRCSYNCPR 0x034
36 #define TRCCCCTLR 0x038
37 #define TRCBBCTLR 0x03C
38 #define TRCTRACEIDR 0x040
39 #define TRCQCTLR 0x044
40 /* Filtering control registers */
41 #define TRCVICTLR 0x080
42 #define TRCVIIECTLR 0x084
43 #define TRCVISSCTLR 0x088
44 #define TRCVIPCSSCTLR 0x08C
45 #define TRCVDCTLR 0x0A0
46 #define TRCVDSACCTLR 0x0A4
47 #define TRCVDARCCTLR 0x0A8
48 /* Derived resources registers */
49 #define TRCSEQEVRn(n) (0x100 + (n * 4)) /* n = 0-2 */
50 #define TRCSEQRSTEVR 0x118
51 #define TRCSEQSTR 0x11C
52 #define TRCEXTINSELR 0x120
53 #define TRCEXTINSELRn(n) (0x120 + (n * 4)) /* n = 0-3 */
54 #define TRCCNTRLDVRn(n) (0x140 + (n * 4)) /* n = 0-3 */
55 #define TRCCNTCTLRn(n) (0x150 + (n * 4)) /* n = 0-3 */
56 #define TRCCNTVRn(n) (0x160 + (n * 4)) /* n = 0-3 */
57 /* ID registers */
58 #define TRCIDR8 0x180
59 #define TRCIDR9 0x184
60 #define TRCIDR10 0x188
61 #define TRCIDR11 0x18C
62 #define TRCIDR12 0x190
63 #define TRCIDR13 0x194
64 #define TRCIMSPEC0 0x1C0
65 #define TRCIMSPECn(n) (0x1C0 + (n * 4)) /* n = 1-7 */
66 #define TRCIDR0 0x1E0
67 #define TRCIDR1 0x1E4
68 #define TRCIDR2 0x1E8
69 #define TRCIDR3 0x1EC
70 #define TRCIDR4 0x1F0
71 #define TRCIDR5 0x1F4
72 #define TRCIDR6 0x1F8
73 #define TRCIDR7 0x1FC
74 /*
75 * Resource selection registers, n = 2-31.
76 * First pair (regs 0, 1) is always present and is reserved.
77 */
78 #define TRCRSCTLRn(n) (0x200 + (n * 4))
79 /* Single-shot comparator registers, n = 0-7 */
80 #define TRCSSCCRn(n) (0x280 + (n * 4))
81 #define TRCSSCSRn(n) (0x2A0 + (n * 4))
82 #define TRCSSPCICRn(n) (0x2C0 + (n * 4))
83 /* Management registers (0x300-0x314) */
84 #define TRCOSLAR 0x300
85 #define TRCOSLSR 0x304
86 #define TRCPDCR 0x310
87 #define TRCPDSR 0x314
88 /* Trace registers (0x318-0xEFC) */
89 /* Address Comparator registers n = 0-15 */
90 #define TRCACVRn(n) (0x400 + (n * 8))
91 #define TRCACATRn(n) (0x480 + (n * 8))
92 /* Data Value Comparator Value registers, n = 0-7 */
93 #define TRCDVCVRn(n) (0x500 + (n * 16))
94 #define TRCDVCMRn(n) (0x580 + (n * 16))
95 /* ContextID/Virtual ContextID comparators, n = 0-7 */
96 #define TRCCIDCVRn(n) (0x600 + (n * 8))
97 #define TRCVMIDCVRn(n) (0x640 + (n * 8))
98 #define TRCCIDCCTLR0 0x680
99 #define TRCCIDCCTLR1 0x684
100 #define TRCVMIDCCTLR0 0x688
101 #define TRCVMIDCCTLR1 0x68C
102 /* Management register (0xF00) */
103 /* Integration control registers */
104 #define TRCITCTRL 0xF00
105 /* Trace registers (0xFA0-0xFA4) */
106 /* Claim tag registers */
107 #define TRCCLAIMSET 0xFA0
108 #define TRCCLAIMCLR 0xFA4
109 /* Management registers (0xFA8-0xFFC) */
110 #define TRCDEVAFF0 0xFA8
111 #define TRCDEVAFF1 0xFAC
112 #define TRCLAR 0xFB0
113 #define TRCLSR 0xFB4
114 #define TRCAUTHSTATUS 0xFB8
115 #define TRCDEVARCH 0xFBC
116 #define TRCDEVID 0xFC8
117 #define TRCDEVTYPE 0xFCC
118 #define TRCPIDR4 0xFD0
119 #define TRCPIDR5 0xFD4
120 #define TRCPIDR6 0xFD8
121 #define TRCPIDR7 0xFDC
122 #define TRCPIDR0 0xFE0
123 #define TRCPIDR1 0xFE4
124 #define TRCPIDR2 0xFE8
125 #define TRCPIDR3 0xFEC
126 #define TRCCIDR0 0xFF0
127 #define TRCCIDR1 0xFF4
128 #define TRCCIDR2 0xFF8
129 #define TRCCIDR3 0xFFC
130
131 #define TRCRSR_TA BIT(12)
132
133 /*
134 * System instructions to access ETM registers.
135 * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions
136 */
137 #define ETM4x_OFFSET_TO_REG(x) ((x) >> 2)
138
139 #define ETM4x_CRn(n) (((n) >> 7) & 0x7)
140 #define ETM4x_Op2(n) (((n) >> 4) & 0x7)
141 #define ETM4x_CRm(n) ((n) & 0xf)
142
143 #include <asm/sysreg.h>
144 #define ETM4x_REG_NUM_TO_SYSREG(n) \
145 sys_reg(2, 1, ETM4x_CRn(n), ETM4x_CRm(n), ETM4x_Op2(n))
146
147 #define READ_ETM4x_REG(reg) \
148 read_sysreg_s(ETM4x_REG_NUM_TO_SYSREG((reg)))
149 #define WRITE_ETM4x_REG(val, reg) \
150 write_sysreg_s(val, ETM4x_REG_NUM_TO_SYSREG((reg)))
151
152 #define read_etm4x_sysreg_const_offset(offset) \
153 READ_ETM4x_REG(ETM4x_OFFSET_TO_REG(offset))
154
155 #define write_etm4x_sysreg_const_offset(val, offset) \
156 WRITE_ETM4x_REG(val, ETM4x_OFFSET_TO_REG(offset))
157
158 #define CASE_READ(res, x) \
159 case (x): { (res) = read_etm4x_sysreg_const_offset((x)); break; }
160
161 #define CASE_WRITE(val, x) \
162 case (x): { write_etm4x_sysreg_const_offset((val), (x)); break; }
163
164 #define CASE_NOP(__unused, x) \
165 case (x): /* fall through */
166
167 #define ETE_ONLY_SYSREG_LIST(op, val) \
168 CASE_##op((val), TRCRSR) \
169 CASE_##op((val), TRCEXTINSELRn(1)) \
170 CASE_##op((val), TRCEXTINSELRn(2)) \
171 CASE_##op((val), TRCEXTINSELRn(3))
172
173 /* List of registers accessible via System instructions */
174 #define ETM4x_ONLY_SYSREG_LIST(op, val) \
175 CASE_##op((val), TRCPROCSELR) \
176 CASE_##op((val), TRCVDCTLR) \
177 CASE_##op((val), TRCVDSACCTLR) \
178 CASE_##op((val), TRCVDARCCTLR) \
179 CASE_##op((val), TRCOSLAR)
180
181 #define ETM_COMMON_SYSREG_LIST(op, val) \
182 CASE_##op((val), TRCPRGCTLR) \
183 CASE_##op((val), TRCSTATR) \
184 CASE_##op((val), TRCCONFIGR) \
185 CASE_##op((val), TRCAUXCTLR) \
186 CASE_##op((val), TRCEVENTCTL0R) \
187 CASE_##op((val), TRCEVENTCTL1R) \
188 CASE_##op((val), TRCSTALLCTLR) \
189 CASE_##op((val), TRCTSCTLR) \
190 CASE_##op((val), TRCSYNCPR) \
191 CASE_##op((val), TRCCCCTLR) \
192 CASE_##op((val), TRCBBCTLR) \
193 CASE_##op((val), TRCTRACEIDR) \
194 CASE_##op((val), TRCQCTLR) \
195 CASE_##op((val), TRCVICTLR) \
196 CASE_##op((val), TRCVIIECTLR) \
197 CASE_##op((val), TRCVISSCTLR) \
198 CASE_##op((val), TRCVIPCSSCTLR) \
199 CASE_##op((val), TRCSEQEVRn(0)) \
200 CASE_##op((val), TRCSEQEVRn(1)) \
201 CASE_##op((val), TRCSEQEVRn(2)) \
202 CASE_##op((val), TRCSEQRSTEVR) \
203 CASE_##op((val), TRCSEQSTR) \
204 CASE_##op((val), TRCEXTINSELR) \
205 CASE_##op((val), TRCCNTRLDVRn(0)) \
206 CASE_##op((val), TRCCNTRLDVRn(1)) \
207 CASE_##op((val), TRCCNTRLDVRn(2)) \
208 CASE_##op((val), TRCCNTRLDVRn(3)) \
209 CASE_##op((val), TRCCNTCTLRn(0)) \
210 CASE_##op((val), TRCCNTCTLRn(1)) \
211 CASE_##op((val), TRCCNTCTLRn(2)) \
212 CASE_##op((val), TRCCNTCTLRn(3)) \
213 CASE_##op((val), TRCCNTVRn(0)) \
214 CASE_##op((val), TRCCNTVRn(1)) \
215 CASE_##op((val), TRCCNTVRn(2)) \
216 CASE_##op((val), TRCCNTVRn(3)) \
217 CASE_##op((val), TRCIDR8) \
218 CASE_##op((val), TRCIDR9) \
219 CASE_##op((val), TRCIDR10) \
220 CASE_##op((val), TRCIDR11) \
221 CASE_##op((val), TRCIDR12) \
222 CASE_##op((val), TRCIDR13) \
223 CASE_##op((val), TRCIMSPECn(0)) \
224 CASE_##op((val), TRCIMSPECn(1)) \
225 CASE_##op((val), TRCIMSPECn(2)) \
226 CASE_##op((val), TRCIMSPECn(3)) \
227 CASE_##op((val), TRCIMSPECn(4)) \
228 CASE_##op((val), TRCIMSPECn(5)) \
229 CASE_##op((val), TRCIMSPECn(6)) \
230 CASE_##op((val), TRCIMSPECn(7)) \
231 CASE_##op((val), TRCIDR0) \
232 CASE_##op((val), TRCIDR1) \
233 CASE_##op((val), TRCIDR2) \
234 CASE_##op((val), TRCIDR3) \
235 CASE_##op((val), TRCIDR4) \
236 CASE_##op((val), TRCIDR5) \
237 CASE_##op((val), TRCIDR6) \
238 CASE_##op((val), TRCIDR7) \
239 CASE_##op((val), TRCRSCTLRn(2)) \
240 CASE_##op((val), TRCRSCTLRn(3)) \
241 CASE_##op((val), TRCRSCTLRn(4)) \
242 CASE_##op((val), TRCRSCTLRn(5)) \
243 CASE_##op((val), TRCRSCTLRn(6)) \
244 CASE_##op((val), TRCRSCTLRn(7)) \
245 CASE_##op((val), TRCRSCTLRn(8)) \
246 CASE_##op((val), TRCRSCTLRn(9)) \
247 CASE_##op((val), TRCRSCTLRn(10)) \
248 CASE_##op((val), TRCRSCTLRn(11)) \
249 CASE_##op((val), TRCRSCTLRn(12)) \
250 CASE_##op((val), TRCRSCTLRn(13)) \
251 CASE_##op((val), TRCRSCTLRn(14)) \
252 CASE_##op((val), TRCRSCTLRn(15)) \
253 CASE_##op((val), TRCRSCTLRn(16)) \
254 CASE_##op((val), TRCRSCTLRn(17)) \
255 CASE_##op((val), TRCRSCTLRn(18)) \
256 CASE_##op((val), TRCRSCTLRn(19)) \
257 CASE_##op((val), TRCRSCTLRn(20)) \
258 CASE_##op((val), TRCRSCTLRn(21)) \
259 CASE_##op((val), TRCRSCTLRn(22)) \
260 CASE_##op((val), TRCRSCTLRn(23)) \
261 CASE_##op((val), TRCRSCTLRn(24)) \
262 CASE_##op((val), TRCRSCTLRn(25)) \
263 CASE_##op((val), TRCRSCTLRn(26)) \
264 CASE_##op((val), TRCRSCTLRn(27)) \
265 CASE_##op((val), TRCRSCTLRn(28)) \
266 CASE_##op((val), TRCRSCTLRn(29)) \
267 CASE_##op((val), TRCRSCTLRn(30)) \
268 CASE_##op((val), TRCRSCTLRn(31)) \
269 CASE_##op((val), TRCSSCCRn(0)) \
270 CASE_##op((val), TRCSSCCRn(1)) \
271 CASE_##op((val), TRCSSCCRn(2)) \
272 CASE_##op((val), TRCSSCCRn(3)) \
273 CASE_##op((val), TRCSSCCRn(4)) \
274 CASE_##op((val), TRCSSCCRn(5)) \
275 CASE_##op((val), TRCSSCCRn(6)) \
276 CASE_##op((val), TRCSSCCRn(7)) \
277 CASE_##op((val), TRCSSCSRn(0)) \
278 CASE_##op((val), TRCSSCSRn(1)) \
279 CASE_##op((val), TRCSSCSRn(2)) \
280 CASE_##op((val), TRCSSCSRn(3)) \
281 CASE_##op((val), TRCSSCSRn(4)) \
282 CASE_##op((val), TRCSSCSRn(5)) \
283 CASE_##op((val), TRCSSCSRn(6)) \
284 CASE_##op((val), TRCSSCSRn(7)) \
285 CASE_##op((val), TRCSSPCICRn(0)) \
286 CASE_##op((val), TRCSSPCICRn(1)) \
287 CASE_##op((val), TRCSSPCICRn(2)) \
288 CASE_##op((val), TRCSSPCICRn(3)) \
289 CASE_##op((val), TRCSSPCICRn(4)) \
290 CASE_##op((val), TRCSSPCICRn(5)) \
291 CASE_##op((val), TRCSSPCICRn(6)) \
292 CASE_##op((val), TRCSSPCICRn(7)) \
293 CASE_##op((val), TRCOSLSR) \
294 CASE_##op((val), TRCACVRn(0)) \
295 CASE_##op((val), TRCACVRn(1)) \
296 CASE_##op((val), TRCACVRn(2)) \
297 CASE_##op((val), TRCACVRn(3)) \
298 CASE_##op((val), TRCACVRn(4)) \
299 CASE_##op((val), TRCACVRn(5)) \
300 CASE_##op((val), TRCACVRn(6)) \
301 CASE_##op((val), TRCACVRn(7)) \
302 CASE_##op((val), TRCACVRn(8)) \
303 CASE_##op((val), TRCACVRn(9)) \
304 CASE_##op((val), TRCACVRn(10)) \
305 CASE_##op((val), TRCACVRn(11)) \
306 CASE_##op((val), TRCACVRn(12)) \
307 CASE_##op((val), TRCACVRn(13)) \
308 CASE_##op((val), TRCACVRn(14)) \
309 CASE_##op((val), TRCACVRn(15)) \
310 CASE_##op((val), TRCACATRn(0)) \
311 CASE_##op((val), TRCACATRn(1)) \
312 CASE_##op((val), TRCACATRn(2)) \
313 CASE_##op((val), TRCACATRn(3)) \
314 CASE_##op((val), TRCACATRn(4)) \
315 CASE_##op((val), TRCACATRn(5)) \
316 CASE_##op((val), TRCACATRn(6)) \
317 CASE_##op((val), TRCACATRn(7)) \
318 CASE_##op((val), TRCACATRn(8)) \
319 CASE_##op((val), TRCACATRn(9)) \
320 CASE_##op((val), TRCACATRn(10)) \
321 CASE_##op((val), TRCACATRn(11)) \
322 CASE_##op((val), TRCACATRn(12)) \
323 CASE_##op((val), TRCACATRn(13)) \
324 CASE_##op((val), TRCACATRn(14)) \
325 CASE_##op((val), TRCACATRn(15)) \
326 CASE_##op((val), TRCDVCVRn(0)) \
327 CASE_##op((val), TRCDVCVRn(1)) \
328 CASE_##op((val), TRCDVCVRn(2)) \
329 CASE_##op((val), TRCDVCVRn(3)) \
330 CASE_##op((val), TRCDVCVRn(4)) \
331 CASE_##op((val), TRCDVCVRn(5)) \
332 CASE_##op((val), TRCDVCVRn(6)) \
333 CASE_##op((val), TRCDVCVRn(7)) \
334 CASE_##op((val), TRCDVCMRn(0)) \
335 CASE_##op((val), TRCDVCMRn(1)) \
336 CASE_##op((val), TRCDVCMRn(2)) \
337 CASE_##op((val), TRCDVCMRn(3)) \
338 CASE_##op((val), TRCDVCMRn(4)) \
339 CASE_##op((val), TRCDVCMRn(5)) \
340 CASE_##op((val), TRCDVCMRn(6)) \
341 CASE_##op((val), TRCDVCMRn(7)) \
342 CASE_##op((val), TRCCIDCVRn(0)) \
343 CASE_##op((val), TRCCIDCVRn(1)) \
344 CASE_##op((val), TRCCIDCVRn(2)) \
345 CASE_##op((val), TRCCIDCVRn(3)) \
346 CASE_##op((val), TRCCIDCVRn(4)) \
347 CASE_##op((val), TRCCIDCVRn(5)) \
348 CASE_##op((val), TRCCIDCVRn(6)) \
349 CASE_##op((val), TRCCIDCVRn(7)) \
350 CASE_##op((val), TRCVMIDCVRn(0)) \
351 CASE_##op((val), TRCVMIDCVRn(1)) \
352 CASE_##op((val), TRCVMIDCVRn(2)) \
353 CASE_##op((val), TRCVMIDCVRn(3)) \
354 CASE_##op((val), TRCVMIDCVRn(4)) \
355 CASE_##op((val), TRCVMIDCVRn(5)) \
356 CASE_##op((val), TRCVMIDCVRn(6)) \
357 CASE_##op((val), TRCVMIDCVRn(7)) \
358 CASE_##op((val), TRCCIDCCTLR0) \
359 CASE_##op((val), TRCCIDCCTLR1) \
360 CASE_##op((val), TRCVMIDCCTLR0) \
361 CASE_##op((val), TRCVMIDCCTLR1) \
362 CASE_##op((val), TRCCLAIMSET) \
363 CASE_##op((val), TRCCLAIMCLR) \
364 CASE_##op((val), TRCAUTHSTATUS) \
365 CASE_##op((val), TRCDEVARCH) \
366 CASE_##op((val), TRCDEVID)
367
368 /* List of registers only accessible via memory-mapped interface */
369 #define ETM_MMAP_LIST(op, val) \
370 CASE_##op((val), TRCDEVTYPE) \
371 CASE_##op((val), TRCPDCR) \
372 CASE_##op((val), TRCPDSR) \
373 CASE_##op((val), TRCDEVAFF0) \
374 CASE_##op((val), TRCDEVAFF1) \
375 CASE_##op((val), TRCLAR) \
376 CASE_##op((val), TRCLSR) \
377 CASE_##op((val), TRCITCTRL) \
378 CASE_##op((val), TRCPIDR4) \
379 CASE_##op((val), TRCPIDR0) \
380 CASE_##op((val), TRCPIDR1) \
381 CASE_##op((val), TRCPIDR2) \
382 CASE_##op((val), TRCPIDR3)
383
384 #define ETM4x_READ_SYSREG_CASES(res) \
385 ETM_COMMON_SYSREG_LIST(READ, (res)) \
386 ETM4x_ONLY_SYSREG_LIST(READ, (res))
387
388 #define ETM4x_WRITE_SYSREG_CASES(val) \
389 ETM_COMMON_SYSREG_LIST(WRITE, (val)) \
390 ETM4x_ONLY_SYSREG_LIST(WRITE, (val))
391
392 #define ETM_COMMON_SYSREG_LIST_CASES \
393 ETM_COMMON_SYSREG_LIST(NOP, __unused)
394
395 #define ETM4x_ONLY_SYSREG_LIST_CASES \
396 ETM4x_ONLY_SYSREG_LIST(NOP, __unused)
397
398 #define ETM4x_SYSREG_LIST_CASES \
399 ETM_COMMON_SYSREG_LIST_CASES \
400 ETM4x_ONLY_SYSREG_LIST(NOP, __unused)
401
402 #define ETM4x_MMAP_LIST_CASES ETM_MMAP_LIST(NOP, __unused)
403
404 /* ETE only supports system register access */
405 #define ETE_READ_CASES(res) \
406 ETM_COMMON_SYSREG_LIST(READ, (res)) \
407 ETE_ONLY_SYSREG_LIST(READ, (res))
408
409 #define ETE_WRITE_CASES(val) \
410 ETM_COMMON_SYSREG_LIST(WRITE, (val)) \
411 ETE_ONLY_SYSREG_LIST(WRITE, (val))
412
413 #define ETE_ONLY_SYSREG_LIST_CASES \
414 ETE_ONLY_SYSREG_LIST(NOP, __unused)
415
416 #define read_etm4x_sysreg_offset(offset, _64bit) \
417 ({ \
418 u64 __val; \
419 \
420 if (__builtin_constant_p((offset))) \
421 __val = read_etm4x_sysreg_const_offset((offset)); \
422 else \
423 __val = etm4x_sysreg_read((offset), true, (_64bit)); \
424 __val; \
425 })
426
427 #define write_etm4x_sysreg_offset(val, offset, _64bit) \
428 do { \
429 if (__builtin_constant_p((offset))) \
430 write_etm4x_sysreg_const_offset((val), \
431 (offset)); \
432 else \
433 etm4x_sysreg_write((val), (offset), true, \
434 (_64bit)); \
435 } while (0)
436
437
438 #define etm4x_relaxed_read32(csa, offset) \
439 ((u32)((csa)->io_mem ? \
440 readl_relaxed((csa)->base + (offset)) : \
441 read_etm4x_sysreg_offset((offset), false)))
442
443 #define etm4x_relaxed_read64(csa, offset) \
444 ((u64)((csa)->io_mem ? \
445 readq_relaxed((csa)->base + (offset)) : \
446 read_etm4x_sysreg_offset((offset), true)))
447
448 #define etm4x_read32(csa, offset) \
449 ({ \
450 u32 __val = etm4x_relaxed_read32((csa), (offset)); \
451 __iormb(__val); \
452 __val; \
453 })
454
455 #define etm4x_read64(csa, offset) \
456 ({ \
457 u64 __val = etm4x_relaxed_read64((csa), (offset)); \
458 __iormb(__val); \
459 __val; \
460 })
461
462 #define etm4x_relaxed_write32(csa, val, offset) \
463 do { \
464 if ((csa)->io_mem) \
465 writel_relaxed((val), (csa)->base + (offset)); \
466 else \
467 write_etm4x_sysreg_offset((val), (offset), \
468 false); \
469 } while (0)
470
471 #define etm4x_relaxed_write64(csa, val, offset) \
472 do { \
473 if ((csa)->io_mem) \
474 writeq_relaxed((val), (csa)->base + (offset)); \
475 else \
476 write_etm4x_sysreg_offset((val), (offset), \
477 true); \
478 } while (0)
479
480 #define etm4x_write32(csa, val, offset) \
481 do { \
482 __iowmb(); \
483 etm4x_relaxed_write32((csa), (val), (offset)); \
484 } while (0)
485
486 #define etm4x_write64(csa, val, offset) \
487 do { \
488 __iowmb(); \
489 etm4x_relaxed_write64((csa), (val), (offset)); \
490 } while (0)
491
492
493 /* ETMv4 resources */
494 #define ETM_MAX_NR_PE 8
495 #define ETMv4_MAX_CNTR 4
496 #define ETM_MAX_SEQ_STATES 4
497 #define ETM_MAX_EXT_INP_SEL 4
498 #define ETM_MAX_EXT_INP 256
499 #define ETM_MAX_EXT_OUT 4
500 #define ETM_MAX_SINGLE_ADDR_CMP 16
501 #define ETM_MAX_ADDR_RANGE_CMP (ETM_MAX_SINGLE_ADDR_CMP / 2)
502 #define ETM_MAX_DATA_VAL_CMP 8
503 #define ETMv4_MAX_CTXID_CMP 8
504 #define ETM_MAX_VMID_CMP 8
505 #define ETM_MAX_PE_CMP 8
506 #define ETM_MAX_RES_SEL 32
507 #define ETM_MAX_SS_CMP 8
508
509 #define ETMv4_SYNC_MASK 0x1F
510 #define ETM_CYC_THRESHOLD_MASK 0xFFF
511 #define ETM_CYC_THRESHOLD_DEFAULT 0x100
512 #define ETMv4_EVENT_MASK 0xFF
513 #define ETM_CNTR_MAX_VAL 0xFFFF
514 #define ETM_TRACEID_MASK 0x3f
515
516 /* ETMv4 programming modes */
517 #define ETM_MODE_EXCLUDE BIT(0)
518 #define ETM_MODE_LOAD BIT(1)
519 #define ETM_MODE_STORE BIT(2)
520 #define ETM_MODE_LOAD_STORE BIT(3)
521 #define ETM_MODE_BB BIT(4)
522 #define ETMv4_MODE_CYCACC BIT(5)
523 #define ETMv4_MODE_CTXID BIT(6)
524 #define ETM_MODE_VMID BIT(7)
525 #define ETM_MODE_COND(val) BMVAL(val, 8, 10)
526 #define ETMv4_MODE_TIMESTAMP BIT(11)
527 #define ETM_MODE_RETURNSTACK BIT(12)
528 #define ETM_MODE_QELEM(val) BMVAL(val, 13, 14)
529 #define ETM_MODE_DATA_TRACE_ADDR BIT(15)
530 #define ETM_MODE_DATA_TRACE_VAL BIT(16)
531 #define ETM_MODE_ISTALL BIT(17)
532 #define ETM_MODE_DSTALL BIT(18)
533 #define ETM_MODE_ATB_TRIGGER BIT(19)
534 #define ETM_MODE_LPOVERRIDE BIT(20)
535 #define ETM_MODE_ISTALL_EN BIT(21)
536 #define ETM_MODE_DSTALL_EN BIT(22)
537 #define ETM_MODE_INSTPRIO BIT(23)
538 #define ETM_MODE_NOOVERFLOW BIT(24)
539 #define ETM_MODE_TRACE_RESET BIT(25)
540 #define ETM_MODE_TRACE_ERR BIT(26)
541 #define ETM_MODE_VIEWINST_STARTSTOP BIT(27)
542 #define ETMv4_MODE_ALL (GENMASK(27, 0) | \
543 ETM_MODE_EXCL_KERN | \
544 ETM_MODE_EXCL_USER)
545
546 /*
547 * TRCOSLSR.OSLM advertises the OS Lock model.
548 * OSLM[2:0] = TRCOSLSR[4:3,0]
549 *
550 * 0b000 - Trace OS Lock is not implemented.
551 * 0b010 - Trace OS Lock is implemented.
552 * 0b100 - Trace OS Lock is not implemented, unit is controlled by PE OS Lock.
553 */
554 #define ETM_OSLOCK_NI 0b000
555 #define ETM_OSLOCK_PRESENT 0b010
556 #define ETM_OSLOCK_PE 0b100
557
558 #define ETM_OSLSR_OSLM(oslsr) ((((oslsr) & GENMASK(4, 3)) >> 2) | (oslsr & 0x1))
559
560 /*
561 * TRCDEVARCH Bit field definitions
562 * Bits[31:21] - ARCHITECT = Always Arm Ltd.
563 * * Bits[31:28] = 0x4
564 * * Bits[27:21] = 0b0111011
565 * Bit[20] - PRESENT, Indicates the presence of this register.
566 *
567 * Bit[19:16] - REVISION, Revision of the architecture.
568 *
569 * Bit[15:0] - ARCHID, Identifies this component as an ETM
570 * * Bits[15:12] - architecture version of ETM
571 * * = 4 for ETMv4
572 * * Bits[11:0] = 0xA13, architecture part number for ETM.
573 */
574 #define ETM_DEVARCH_ARCHITECT_MASK GENMASK(31, 21)
575 #define ETM_DEVARCH_ARCHITECT_ARM ((0x4 << 28) | (0b0111011 << 21))
576 #define ETM_DEVARCH_PRESENT BIT(20)
577 #define ETM_DEVARCH_REVISION_SHIFT 16
578 #define ETM_DEVARCH_REVISION_MASK GENMASK(19, 16)
579 #define ETM_DEVARCH_REVISION(x) \
580 (((x) & ETM_DEVARCH_REVISION_MASK) >> ETM_DEVARCH_REVISION_SHIFT)
581 #define ETM_DEVARCH_ARCHID_MASK GENMASK(15, 0)
582 #define ETM_DEVARCH_ARCHID_ARCH_VER_SHIFT 12
583 #define ETM_DEVARCH_ARCHID_ARCH_VER_MASK GENMASK(15, 12)
584 #define ETM_DEVARCH_ARCHID_ARCH_VER(x) \
585 (((x) & ETM_DEVARCH_ARCHID_ARCH_VER_MASK) >> ETM_DEVARCH_ARCHID_ARCH_VER_SHIFT)
586
587 #define ETM_DEVARCH_MAKE_ARCHID_ARCH_VER(ver) \
588 (((ver) << ETM_DEVARCH_ARCHID_ARCH_VER_SHIFT) & ETM_DEVARCH_ARCHID_ARCH_VER_MASK)
589
590 #define ETM_DEVARCH_ARCHID_ARCH_PART(x) ((x) & 0xfffUL)
591
592 #define ETM_DEVARCH_MAKE_ARCHID(major) \
593 ((ETM_DEVARCH_MAKE_ARCHID_ARCH_VER(major)) | ETM_DEVARCH_ARCHID_ARCH_PART(0xA13))
594
595 #define ETM_DEVARCH_ARCHID_ETMv4x ETM_DEVARCH_MAKE_ARCHID(0x4)
596 #define ETM_DEVARCH_ARCHID_ETE ETM_DEVARCH_MAKE_ARCHID(0x5)
597
598 #define ETM_DEVARCH_ID_MASK \
599 (ETM_DEVARCH_ARCHITECT_MASK | ETM_DEVARCH_ARCHID_MASK | ETM_DEVARCH_PRESENT)
600 #define ETM_DEVARCH_ETMv4x_ARCH \
601 (ETM_DEVARCH_ARCHITECT_ARM | ETM_DEVARCH_ARCHID_ETMv4x | ETM_DEVARCH_PRESENT)
602 #define ETM_DEVARCH_ETE_ARCH \
603 (ETM_DEVARCH_ARCHITECT_ARM | ETM_DEVARCH_ARCHID_ETE | ETM_DEVARCH_PRESENT)
604
605 #define TRCSTATR_IDLE_BIT 0
606 #define TRCSTATR_PMSTABLE_BIT 1
607 #define ETM_DEFAULT_ADDR_COMP 0
608
609 #define TRCSSCSRn_PC BIT(3)
610
611 /* PowerDown Control Register bits */
612 #define TRCPDCR_PU BIT(3)
613
614 #define TRCACATR_EXLEVEL_SHIFT 8
615
616 /*
617 * Exception level mask for Secure and Non-Secure ELs.
618 * ETM defines the bits for EL control (e.g, TRVICTLR, TRCACTRn).
619 * The Secure and Non-Secure ELs are always to gether.
620 * Non-secure EL3 is never implemented.
621 * We use the following generic mask as they appear in different
622 * registers and this can be shifted for the appropriate
623 * fields.
624 */
625 #define ETM_EXLEVEL_S_APP BIT(0) /* Secure EL0 */
626 #define ETM_EXLEVEL_S_OS BIT(1) /* Secure EL1 */
627 #define ETM_EXLEVEL_S_HYP BIT(2) /* Secure EL2 */
628 #define ETM_EXLEVEL_S_MON BIT(3) /* Secure EL3/Monitor */
629 #define ETM_EXLEVEL_NS_APP BIT(4) /* NonSecure EL0 */
630 #define ETM_EXLEVEL_NS_OS BIT(5) /* NonSecure EL1 */
631 #define ETM_EXLEVEL_NS_HYP BIT(6) /* NonSecure EL2 */
632
633 #define ETM_EXLEVEL_MASK (GENMASK(6, 0))
634 #define ETM_EXLEVEL_S_MASK (GENMASK(3, 0))
635 #define ETM_EXLEVEL_NS_MASK (GENMASK(6, 4))
636
637 /* access level controls in TRCACATRn */
638 #define TRCACATR_EXLEVEL_SHIFT 8
639
640 /* access level control in TRCVICTLR */
641 #define TRCVICTLR_EXLEVEL_SHIFT 16
642 #define TRCVICTLR_EXLEVEL_S_SHIFT 16
643 #define TRCVICTLR_EXLEVEL_NS_SHIFT 20
644
645 /* secure / non secure masks - TRCVICTLR, IDR3 */
646 #define TRCVICTLR_EXLEVEL_MASK (ETM_EXLEVEL_MASK << TRCVICTLR_EXLEVEL_SHIFT)
647 #define TRCVICTLR_EXLEVEL_S_MASK (ETM_EXLEVEL_S_MASK << TRCVICTLR_EXLEVEL_SHIFT)
648 #define TRCVICTLR_EXLEVEL_NS_MASK (ETM_EXLEVEL_NS_MASK << TRCVICTLR_EXLEVEL_SHIFT)
649
650 #define ETM_TRCIDR1_ARCH_MAJOR_SHIFT 8
651 #define ETM_TRCIDR1_ARCH_MAJOR_MASK (0xfU << ETM_TRCIDR1_ARCH_MAJOR_SHIFT)
652 #define ETM_TRCIDR1_ARCH_MAJOR(x) \
653 (((x) & ETM_TRCIDR1_ARCH_MAJOR_MASK) >> ETM_TRCIDR1_ARCH_MAJOR_SHIFT)
654 #define ETM_TRCIDR1_ARCH_MINOR_SHIFT 4
655 #define ETM_TRCIDR1_ARCH_MINOR_MASK (0xfU << ETM_TRCIDR1_ARCH_MINOR_SHIFT)
656 #define ETM_TRCIDR1_ARCH_MINOR(x) \
657 (((x) & ETM_TRCIDR1_ARCH_MINOR_MASK) >> ETM_TRCIDR1_ARCH_MINOR_SHIFT)
658 #define ETM_TRCIDR1_ARCH_SHIFT ETM_TRCIDR1_ARCH_MINOR_SHIFT
659 #define ETM_TRCIDR1_ARCH_MASK \
660 (ETM_TRCIDR1_ARCH_MAJOR_MASK | ETM_TRCIDR1_ARCH_MINOR_MASK)
661
662 #define ETM_TRCIDR1_ARCH_ETMv4 0x4
663
664 /*
665 * Driver representation of the ETM architecture.
666 * The version of an ETM component can be detected from
667 *
668 * TRCDEVARCH - CoreSight architected register
669 * - Bits[15:12] - Major version
670 * - Bits[19:16] - Minor version
671 * TRCIDR1 - ETM architected register
672 * - Bits[11:8] - Major version
673 * - Bits[7:4] - Minor version
674 * We must rely on TRCDEVARCH for the version information,
675 * however we don't want to break the support for potential
676 * old implementations which might not implement it. Thus
677 * we fall back to TRCIDR1 if TRCDEVARCH is not implemented
678 * for memory mapped components.
679 * Now to make certain decisions easier based on the version
680 * we use an internal representation of the version in the
681 * driver, as follows :
682 *
683 * ETM_ARCH_VERSION[7:0], where :
684 * Bits[7:4] - Major version
685 * Bits[3:0] - Minro version
686 */
687 #define ETM_ARCH_VERSION(major, minor) \
688 ((((major) & 0xfU) << 4) | (((minor) & 0xfU)))
689 #define ETM_ARCH_MAJOR_VERSION(arch) (((arch) >> 4) & 0xfU)
690 #define ETM_ARCH_MINOR_VERSION(arch) ((arch) & 0xfU)
691
692 #define ETM_ARCH_V4 ETM_ARCH_VERSION(4, 0)
693 #define ETM_ARCH_ETE ETM_ARCH_VERSION(5, 0)
694
695 /* Interpretation of resource numbers change at ETM v4.3 architecture */
696 #define ETM_ARCH_V4_3 ETM_ARCH_VERSION(4, 3)
697
etm_devarch_to_arch(u32 devarch)698 static inline u8 etm_devarch_to_arch(u32 devarch)
699 {
700 return ETM_ARCH_VERSION(ETM_DEVARCH_ARCHID_ARCH_VER(devarch),
701 ETM_DEVARCH_REVISION(devarch));
702 }
703
etm_trcidr_to_arch(u32 trcidr1)704 static inline u8 etm_trcidr_to_arch(u32 trcidr1)
705 {
706 return ETM_ARCH_VERSION(ETM_TRCIDR1_ARCH_MAJOR(trcidr1),
707 ETM_TRCIDR1_ARCH_MINOR(trcidr1));
708 }
709
710 enum etm_impdef_type {
711 ETM4_IMPDEF_HISI_CORE_COMMIT,
712 ETM4_IMPDEF_FEATURE_MAX,
713 };
714
715 /**
716 * struct etmv4_config - configuration information related to an ETMv4
717 * @mode: Controls various modes supported by this ETM.
718 * @pe_sel: Controls which PE to trace.
719 * @cfg: Controls the tracing options.
720 * @eventctrl0: Controls the tracing of arbitrary events.
721 * @eventctrl1: Controls the behavior of the events that @event_ctrl0 selects.
722 * @stallctl: If functionality that prevents trace unit buffer overflows
723 * is available.
724 * @ts_ctrl: Controls the insertion of global timestamps in the
725 * trace streams.
726 * @syncfreq: Controls how often trace synchronization requests occur.
727 * the TRCCCCTLR register.
728 * @ccctlr: Sets the threshold value for cycle counting.
729 * @vinst_ctrl: Controls instruction trace filtering.
730 * @viiectlr: Set or read, the address range comparators.
731 * @vissctlr: Set, or read, the single address comparators that control the
732 * ViewInst start-stop logic.
733 * @vipcssctlr: Set, or read, which PE comparator inputs can control the
734 * ViewInst start-stop logic.
735 * @seq_idx: Sequencor index selector.
736 * @seq_ctrl: Control for the sequencer state transition control register.
737 * @seq_rst: Moves the sequencer to state 0 when a programmed event occurs.
738 * @seq_state: Set, or read the sequencer state.
739 * @cntr_idx: Counter index seletor.
740 * @cntrldvr: Sets or returns the reload count value for a counter.
741 * @cntr_ctrl: Controls the operation of a counter.
742 * @cntr_val: Sets or returns the value for a counter.
743 * @res_idx: Resource index selector.
744 * @res_ctrl: Controls the selection of the resources in the trace unit.
745 * @ss_idx: Single-shot index selector.
746 * @ss_ctrl: Controls the corresponding single-shot comparator resource.
747 * @ss_status: The status of the corresponding single-shot comparator.
748 * @ss_pe_cmp: Selects the PE comparator inputs for Single-shot control.
749 * @addr_idx: Address comparator index selector.
750 * @addr_val: Value for address comparator.
751 * @addr_acc: Address comparator access type.
752 * @addr_type: Current status of the comparator register.
753 * @ctxid_idx: Context ID index selector.
754 * @ctxid_pid: Value of the context ID comparator.
755 * @ctxid_mask0:Context ID comparator mask for comparator 0-3.
756 * @ctxid_mask1:Context ID comparator mask for comparator 4-7.
757 * @vmid_idx: VM ID index selector.
758 * @vmid_val: Value of the VM ID comparator.
759 * @vmid_mask0: VM ID comparator mask for comparator 0-3.
760 * @vmid_mask1: VM ID comparator mask for comparator 4-7.
761 * @ext_inp: External input selection.
762 * @s_ex_level: Secure ELs where tracing is supported.
763 */
764 struct etmv4_config {
765 u32 mode;
766 u32 pe_sel;
767 u32 cfg;
768 u32 eventctrl0;
769 u32 eventctrl1;
770 u32 stall_ctrl;
771 u32 ts_ctrl;
772 u32 syncfreq;
773 u32 ccctlr;
774 u32 bb_ctrl;
775 u32 vinst_ctrl;
776 u32 viiectlr;
777 u32 vissctlr;
778 u32 vipcssctlr;
779 u8 seq_idx;
780 u32 seq_ctrl[ETM_MAX_SEQ_STATES];
781 u32 seq_rst;
782 u32 seq_state;
783 u8 cntr_idx;
784 u32 cntrldvr[ETMv4_MAX_CNTR];
785 u32 cntr_ctrl[ETMv4_MAX_CNTR];
786 u32 cntr_val[ETMv4_MAX_CNTR];
787 u8 res_idx;
788 u32 res_ctrl[ETM_MAX_RES_SEL];
789 u8 ss_idx;
790 u32 ss_ctrl[ETM_MAX_SS_CMP];
791 u32 ss_status[ETM_MAX_SS_CMP];
792 u32 ss_pe_cmp[ETM_MAX_SS_CMP];
793 u8 addr_idx;
794 u64 addr_val[ETM_MAX_SINGLE_ADDR_CMP];
795 u64 addr_acc[ETM_MAX_SINGLE_ADDR_CMP];
796 u8 addr_type[ETM_MAX_SINGLE_ADDR_CMP];
797 u8 ctxid_idx;
798 u64 ctxid_pid[ETMv4_MAX_CTXID_CMP];
799 u32 ctxid_mask0;
800 u32 ctxid_mask1;
801 u8 vmid_idx;
802 u64 vmid_val[ETM_MAX_VMID_CMP];
803 u32 vmid_mask0;
804 u32 vmid_mask1;
805 u32 ext_inp;
806 u8 s_ex_level;
807 };
808
809 /**
810 * struct etm4_save_state - state to be preserved when ETM is without power
811 */
812 struct etmv4_save_state {
813 u32 trcprgctlr;
814 u32 trcprocselr;
815 u32 trcconfigr;
816 u32 trcauxctlr;
817 u32 trceventctl0r;
818 u32 trceventctl1r;
819 u32 trcstallctlr;
820 u32 trctsctlr;
821 u32 trcsyncpr;
822 u32 trcccctlr;
823 u32 trcbbctlr;
824 u32 trctraceidr;
825 u32 trcqctlr;
826
827 u32 trcvictlr;
828 u32 trcviiectlr;
829 u32 trcvissctlr;
830 u32 trcvipcssctlr;
831 u32 trcvdctlr;
832 u32 trcvdsacctlr;
833 u32 trcvdarcctlr;
834
835 u32 trcseqevr[ETM_MAX_SEQ_STATES];
836 u32 trcseqrstevr;
837 u32 trcseqstr;
838 u32 trcextinselr;
839 u32 trccntrldvr[ETMv4_MAX_CNTR];
840 u32 trccntctlr[ETMv4_MAX_CNTR];
841 u32 trccntvr[ETMv4_MAX_CNTR];
842
843 u32 trcrsctlr[ETM_MAX_RES_SEL];
844
845 u32 trcssccr[ETM_MAX_SS_CMP];
846 u32 trcsscsr[ETM_MAX_SS_CMP];
847 u32 trcsspcicr[ETM_MAX_SS_CMP];
848
849 u64 trcacvr[ETM_MAX_SINGLE_ADDR_CMP];
850 u64 trcacatr[ETM_MAX_SINGLE_ADDR_CMP];
851 u64 trccidcvr[ETMv4_MAX_CTXID_CMP];
852 u64 trcvmidcvr[ETM_MAX_VMID_CMP];
853 u32 trccidcctlr0;
854 u32 trccidcctlr1;
855 u32 trcvmidcctlr0;
856 u32 trcvmidcctlr1;
857
858 u32 trcclaimset;
859
860 u32 cntr_val[ETMv4_MAX_CNTR];
861 u32 seq_state;
862 u32 vinst_ctrl;
863 u32 ss_status[ETM_MAX_SS_CMP];
864
865 u32 trcpdcr;
866 };
867
868 /**
869 * struct etm4_drvdata - specifics associated to an ETM component
870 * @base: Memory mapped base address for this component.
871 * @csdev: Component vitals needed by the framework.
872 * @spinlock: Only one at a time pls.
873 * @mode: This tracer's mode, i.e sysFS, Perf or disabled.
874 * @cpu: The cpu this component is affined to.
875 * @arch: ETM architecture version.
876 * @nr_pe: The number of processing entity available for tracing.
877 * @nr_pe_cmp: The number of processing entity comparator inputs that are
878 * available for tracing.
879 * @nr_addr_cmp:Number of pairs of address comparators available
880 * as found in ETMIDR4 0-3.
881 * @nr_cntr: Number of counters as found in ETMIDR5 bit 28-30.
882 * @nr_ext_inp: Number of external input.
883 * @numcidc: Number of contextID comparators.
884 * @numvmidc: Number of VMID comparators.
885 * @nrseqstate: The number of sequencer states that are implemented.
886 * @nr_event: Indicates how many events the trace unit support.
887 * @nr_resource:The number of resource selection pairs available for tracing.
888 * @nr_ss_cmp: Number of single-shot comparator controls that are available.
889 * @trcid: value of the current ID for this component.
890 * @trcid_size: Indicates the trace ID width.
891 * @ts_size: Global timestamp size field.
892 * @ctxid_size: Size of the context ID field to consider.
893 * @vmid_size: Size of the VM ID comparator to consider.
894 * @ccsize: Indicates the size of the cycle counter in bits.
895 * @ccitmin: minimum value that can be programmed in
896 * @s_ex_level: In secure state, indicates whether instruction tracing is
897 * supported for the corresponding Exception level.
898 * @ns_ex_level:In non-secure state, indicates whether instruction tracing is
899 * supported for the corresponding Exception level.
900 * @sticky_enable: true if ETM base configuration has been done.
901 * @boot_enable:True if we should start tracing at boot time.
902 * @os_unlock: True if access to management registers is allowed.
903 * @instrp0: Tracing of load and store instructions
904 * as P0 elements is supported.
905 * @trcbb: Indicates if the trace unit supports branch broadcast tracing.
906 * @trccond: If the trace unit supports conditional
907 * instruction tracing.
908 * @retstack: Indicates if the implementation supports a return stack.
909 * @trccci: Indicates if the trace unit supports cycle counting
910 * for instruction.
911 * @q_support: Q element support characteristics.
912 * @trc_error: Whether a trace unit can trace a system
913 * error exception.
914 * @syncpr: Indicates if an implementation has a fixed
915 * synchronization period.
916 * @stall_ctrl: Enables trace unit functionality that prevents trace
917 * unit buffer overflows.
918 * @sysstall: Does the system support stall control of the PE?
919 * @nooverflow: Indicate if overflow prevention is supported.
920 * @atbtrig: If the implementation can support ATB triggers
921 * @lpoverride: If the implementation can support low-power state over.
922 * @trfcr: If the CPU supports FEAT_TRF, value of the TRFCR_ELx that
923 * allows tracing at all ELs. We don't want to compute this
924 * at runtime, due to the additional setting of TRFCR_CX when
925 * in EL2. Otherwise, 0.
926 * @config: structure holding configuration parameters.
927 * @save_trfcr: Saved TRFCR_EL1 register during a CPU PM event.
928 * @save_state: State to be preserved across power loss
929 * @state_needs_restore: True when there is context to restore after PM exit
930 * @skip_power_up: Indicates if an implementation can skip powering up
931 * the trace unit.
932 * @arch_features: Bitmap of arch features of etmv4 devices.
933 */
934 struct etmv4_drvdata {
935 void __iomem *base;
936 struct coresight_device *csdev;
937 spinlock_t spinlock;
938 local_t mode;
939 int cpu;
940 u8 arch;
941 u8 nr_pe;
942 u8 nr_pe_cmp;
943 u8 nr_addr_cmp;
944 u8 nr_cntr;
945 u8 nr_ext_inp;
946 u8 numcidc;
947 u8 numvmidc;
948 u8 nrseqstate;
949 u8 nr_event;
950 u8 nr_resource;
951 u8 nr_ss_cmp;
952 u8 trcid;
953 u8 trcid_size;
954 u8 ts_size;
955 u8 ctxid_size;
956 u8 vmid_size;
957 u8 ccsize;
958 u8 ccitmin;
959 u8 s_ex_level;
960 u8 ns_ex_level;
961 u8 q_support;
962 u8 os_lock_model;
963 bool sticky_enable;
964 bool boot_enable;
965 bool os_unlock;
966 bool instrp0;
967 bool trcbb;
968 bool trccond;
969 bool retstack;
970 bool trccci;
971 bool trc_error;
972 bool syncpr;
973 bool stallctl;
974 bool sysstall;
975 bool nooverflow;
976 bool atbtrig;
977 bool lpoverride;
978 u64 trfcr;
979 struct etmv4_config config;
980 u64 save_trfcr;
981 struct etmv4_save_state *save_state;
982 bool state_needs_restore;
983 bool skip_power_up;
984 DECLARE_BITMAP(arch_features, ETM4_IMPDEF_FEATURE_MAX);
985 };
986
987 /* Address comparator access types */
988 enum etm_addr_acctype {
989 ETM_INSTR_ADDR,
990 ETM_DATA_LOAD_ADDR,
991 ETM_DATA_STORE_ADDR,
992 ETM_DATA_LOAD_STORE_ADDR,
993 };
994
995 /* Address comparator context types */
996 enum etm_addr_ctxtype {
997 ETM_CTX_NONE,
998 ETM_CTX_CTXID,
999 ETM_CTX_VMID,
1000 ETM_CTX_CTXID_VMID,
1001 };
1002
1003 extern const struct attribute_group *coresight_etmv4_groups[];
1004 void etm4_config_trace_mode(struct etmv4_config *config);
1005
1006 u64 etm4x_sysreg_read(u32 offset, bool _relaxed, bool _64bit);
1007 void etm4x_sysreg_write(u64 val, u32 offset, bool _relaxed, bool _64bit);
1008
etm4x_is_ete(struct etmv4_drvdata * drvdata)1009 static inline bool etm4x_is_ete(struct etmv4_drvdata *drvdata)
1010 {
1011 return drvdata->arch >= ETM_ARCH_ETE;
1012 }
1013 #endif
1014