1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
6 #ifndef _CORESIGHT_CORESIGHT_ETM_H
7 #define _CORESIGHT_CORESIGHT_ETM_H
10 #include <linux/spinlock.h>
11 #include <linux/types.h>
12 #include "coresight-priv.h"
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
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 TRCSTALLCTLR 0x02C
33 #define TRCTSCTLR 0x030
34 #define TRCSYNCPR 0x034
35 #define TRCCCCTLR 0x038
36 #define TRCBBCTLR 0x03C
37 #define TRCTRACEIDR 0x040
38 #define TRCQCTLR 0x044
39 /* Filtering control registers */
40 #define TRCVICTLR 0x080
41 #define TRCVIIECTLR 0x084
42 #define TRCVISSCTLR 0x088
43 #define TRCVIPCSSCTLR 0x08C
44 #define TRCVDCTLR 0x0A0
45 #define TRCVDSACCTLR 0x0A4
46 #define TRCVDARCCTLR 0x0A8
47 /* Derived resources registers */
48 #define TRCSEQEVRn(n) (0x100 + (n * 4)) /* n = 0-2 */
49 #define TRCSEQRSTEVR 0x118
50 #define TRCSEQSTR 0x11C
51 #define TRCEXTINSELR 0x120
52 #define TRCCNTRLDVRn(n) (0x140 + (n * 4)) /* n = 0-3 */
53 #define TRCCNTCTLRn(n) (0x150 + (n * 4)) /* n = 0-3 */
54 #define TRCCNTVRn(n) (0x160 + (n * 4)) /* n = 0-3 */
58 #define TRCIDR10 0x188
59 #define TRCIDR11 0x18C
60 #define TRCIDR12 0x190
61 #define TRCIDR13 0x194
62 #define TRCIMSPEC0 0x1C0
63 #define TRCIMSPECn(n) (0x1C0 + (n * 4)) /* n = 1-7 */
73 * Resource selection registers, n = 2-31.
74 * First pair (regs 0, 1) is always present and is reserved.
76 #define TRCRSCTLRn(n) (0x200 + (n * 4))
77 /* Single-shot comparator registers, n = 0-7 */
78 #define TRCSSCCRn(n) (0x280 + (n * 4))
79 #define TRCSSCSRn(n) (0x2A0 + (n * 4))
80 #define TRCSSPCICRn(n) (0x2C0 + (n * 4))
81 /* Management registers (0x300-0x314) */
82 #define TRCOSLAR 0x300
83 #define TRCOSLSR 0x304
86 /* Trace registers (0x318-0xEFC) */
87 /* Address Comparator registers n = 0-15 */
88 #define TRCACVRn(n) (0x400 + (n * 8))
89 #define TRCACATRn(n) (0x480 + (n * 8))
90 /* Data Value Comparator Value registers, n = 0-7 */
91 #define TRCDVCVRn(n) (0x500 + (n * 16))
92 #define TRCDVCMRn(n) (0x580 + (n * 16))
93 /* ContextID/Virtual ContextID comparators, n = 0-7 */
94 #define TRCCIDCVRn(n) (0x600 + (n * 8))
95 #define TRCVMIDCVRn(n) (0x640 + (n * 8))
96 #define TRCCIDCCTLR0 0x680
97 #define TRCCIDCCTLR1 0x684
98 #define TRCVMIDCCTLR0 0x688
99 #define TRCVMIDCCTLR1 0x68C
100 /* Management register (0xF00) */
101 /* Integration control registers */
102 #define TRCITCTRL 0xF00
103 /* Trace registers (0xFA0-0xFA4) */
104 /* Claim tag registers */
105 #define TRCCLAIMSET 0xFA0
106 #define TRCCLAIMCLR 0xFA4
107 /* Management registers (0xFA8-0xFFC) */
108 #define TRCDEVAFF0 0xFA8
109 #define TRCDEVAFF1 0xFAC
112 #define TRCAUTHSTATUS 0xFB8
113 #define TRCDEVARCH 0xFBC
114 #define TRCDEVID 0xFC8
115 #define TRCDEVTYPE 0xFCC
116 #define TRCPIDR4 0xFD0
117 #define TRCPIDR5 0xFD4
118 #define TRCPIDR6 0xFD8
119 #define TRCPIDR7 0xFDC
120 #define TRCPIDR0 0xFE0
121 #define TRCPIDR1 0xFE4
122 #define TRCPIDR2 0xFE8
123 #define TRCPIDR3 0xFEC
124 #define TRCCIDR0 0xFF0
125 #define TRCCIDR1 0xFF4
126 #define TRCCIDR2 0xFF8
127 #define TRCCIDR3 0xFFC
130 * System instructions to access ETM registers.
131 * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions
133 #define ETM4x_OFFSET_TO_REG(x) ((x) >> 2)
135 #define ETM4x_CRn(n) (((n) >> 7) & 0x7)
136 #define ETM4x_Op2(n) (((n) >> 4) & 0x7)
137 #define ETM4x_CRm(n) ((n) & 0xf)
139 #include <asm/sysreg.h>
140 #define ETM4x_REG_NUM_TO_SYSREG(n) \
141 sys_reg(2, 1, ETM4x_CRn(n), ETM4x_CRm(n), ETM4x_Op2(n))
143 #define READ_ETM4x_REG(reg) \
144 read_sysreg_s(ETM4x_REG_NUM_TO_SYSREG((reg)))
145 #define WRITE_ETM4x_REG(val, reg) \
146 write_sysreg_s(val, ETM4x_REG_NUM_TO_SYSREG((reg)))
148 #define read_etm4x_sysreg_const_offset(offset) \
149 READ_ETM4x_REG(ETM4x_OFFSET_TO_REG(offset))
151 #define write_etm4x_sysreg_const_offset(val, offset) \
152 WRITE_ETM4x_REG(val, ETM4x_OFFSET_TO_REG(offset))
154 #define CASE_READ(res, x) \
155 case (x): { (res) = read_etm4x_sysreg_const_offset((x)); break; }
157 #define CASE_WRITE(val, x) \
158 case (x): { write_etm4x_sysreg_const_offset((val), (x)); break; }
160 #define CASE_NOP(__unused, x) \
161 case (x): /* fall through */
163 /* List of registers accessible via System instructions */
164 #define ETM_SYSREG_LIST(op, val) \
165 CASE_##op((val), TRCPRGCTLR) \
166 CASE_##op((val), TRCPROCSELR) \
167 CASE_##op((val), TRCSTATR) \
168 CASE_##op((val), TRCCONFIGR) \
169 CASE_##op((val), TRCAUXCTLR) \
170 CASE_##op((val), TRCEVENTCTL0R) \
171 CASE_##op((val), TRCEVENTCTL1R) \
172 CASE_##op((val), TRCSTALLCTLR) \
173 CASE_##op((val), TRCTSCTLR) \
174 CASE_##op((val), TRCSYNCPR) \
175 CASE_##op((val), TRCCCCTLR) \
176 CASE_##op((val), TRCBBCTLR) \
177 CASE_##op((val), TRCTRACEIDR) \
178 CASE_##op((val), TRCQCTLR) \
179 CASE_##op((val), TRCVICTLR) \
180 CASE_##op((val), TRCVIIECTLR) \
181 CASE_##op((val), TRCVISSCTLR) \
182 CASE_##op((val), TRCVIPCSSCTLR) \
183 CASE_##op((val), TRCVDCTLR) \
184 CASE_##op((val), TRCVDSACCTLR) \
185 CASE_##op((val), TRCVDARCCTLR) \
186 CASE_##op((val), TRCSEQEVRn(0)) \
187 CASE_##op((val), TRCSEQEVRn(1)) \
188 CASE_##op((val), TRCSEQEVRn(2)) \
189 CASE_##op((val), TRCSEQRSTEVR) \
190 CASE_##op((val), TRCSEQSTR) \
191 CASE_##op((val), TRCEXTINSELR) \
192 CASE_##op((val), TRCCNTRLDVRn(0)) \
193 CASE_##op((val), TRCCNTRLDVRn(1)) \
194 CASE_##op((val), TRCCNTRLDVRn(2)) \
195 CASE_##op((val), TRCCNTRLDVRn(3)) \
196 CASE_##op((val), TRCCNTCTLRn(0)) \
197 CASE_##op((val), TRCCNTCTLRn(1)) \
198 CASE_##op((val), TRCCNTCTLRn(2)) \
199 CASE_##op((val), TRCCNTCTLRn(3)) \
200 CASE_##op((val), TRCCNTVRn(0)) \
201 CASE_##op((val), TRCCNTVRn(1)) \
202 CASE_##op((val), TRCCNTVRn(2)) \
203 CASE_##op((val), TRCCNTVRn(3)) \
204 CASE_##op((val), TRCIDR8) \
205 CASE_##op((val), TRCIDR9) \
206 CASE_##op((val), TRCIDR10) \
207 CASE_##op((val), TRCIDR11) \
208 CASE_##op((val), TRCIDR12) \
209 CASE_##op((val), TRCIDR13) \
210 CASE_##op((val), TRCIMSPECn(0)) \
211 CASE_##op((val), TRCIMSPECn(1)) \
212 CASE_##op((val), TRCIMSPECn(2)) \
213 CASE_##op((val), TRCIMSPECn(3)) \
214 CASE_##op((val), TRCIMSPECn(4)) \
215 CASE_##op((val), TRCIMSPECn(5)) \
216 CASE_##op((val), TRCIMSPECn(6)) \
217 CASE_##op((val), TRCIMSPECn(7)) \
218 CASE_##op((val), TRCIDR0) \
219 CASE_##op((val), TRCIDR1) \
220 CASE_##op((val), TRCIDR2) \
221 CASE_##op((val), TRCIDR3) \
222 CASE_##op((val), TRCIDR4) \
223 CASE_##op((val), TRCIDR5) \
224 CASE_##op((val), TRCIDR6) \
225 CASE_##op((val), TRCIDR7) \
226 CASE_##op((val), TRCRSCTLRn(2)) \
227 CASE_##op((val), TRCRSCTLRn(3)) \
228 CASE_##op((val), TRCRSCTLRn(4)) \
229 CASE_##op((val), TRCRSCTLRn(5)) \
230 CASE_##op((val), TRCRSCTLRn(6)) \
231 CASE_##op((val), TRCRSCTLRn(7)) \
232 CASE_##op((val), TRCRSCTLRn(8)) \
233 CASE_##op((val), TRCRSCTLRn(9)) \
234 CASE_##op((val), TRCRSCTLRn(10)) \
235 CASE_##op((val), TRCRSCTLRn(11)) \
236 CASE_##op((val), TRCRSCTLRn(12)) \
237 CASE_##op((val), TRCRSCTLRn(13)) \
238 CASE_##op((val), TRCRSCTLRn(14)) \
239 CASE_##op((val), TRCRSCTLRn(15)) \
240 CASE_##op((val), TRCRSCTLRn(16)) \
241 CASE_##op((val), TRCRSCTLRn(17)) \
242 CASE_##op((val), TRCRSCTLRn(18)) \
243 CASE_##op((val), TRCRSCTLRn(19)) \
244 CASE_##op((val), TRCRSCTLRn(20)) \
245 CASE_##op((val), TRCRSCTLRn(21)) \
246 CASE_##op((val), TRCRSCTLRn(22)) \
247 CASE_##op((val), TRCRSCTLRn(23)) \
248 CASE_##op((val), TRCRSCTLRn(24)) \
249 CASE_##op((val), TRCRSCTLRn(25)) \
250 CASE_##op((val), TRCRSCTLRn(26)) \
251 CASE_##op((val), TRCRSCTLRn(27)) \
252 CASE_##op((val), TRCRSCTLRn(28)) \
253 CASE_##op((val), TRCRSCTLRn(29)) \
254 CASE_##op((val), TRCRSCTLRn(30)) \
255 CASE_##op((val), TRCRSCTLRn(31)) \
256 CASE_##op((val), TRCSSCCRn(0)) \
257 CASE_##op((val), TRCSSCCRn(1)) \
258 CASE_##op((val), TRCSSCCRn(2)) \
259 CASE_##op((val), TRCSSCCRn(3)) \
260 CASE_##op((val), TRCSSCCRn(4)) \
261 CASE_##op((val), TRCSSCCRn(5)) \
262 CASE_##op((val), TRCSSCCRn(6)) \
263 CASE_##op((val), TRCSSCCRn(7)) \
264 CASE_##op((val), TRCSSCSRn(0)) \
265 CASE_##op((val), TRCSSCSRn(1)) \
266 CASE_##op((val), TRCSSCSRn(2)) \
267 CASE_##op((val), TRCSSCSRn(3)) \
268 CASE_##op((val), TRCSSCSRn(4)) \
269 CASE_##op((val), TRCSSCSRn(5)) \
270 CASE_##op((val), TRCSSCSRn(6)) \
271 CASE_##op((val), TRCSSCSRn(7)) \
272 CASE_##op((val), TRCSSPCICRn(0)) \
273 CASE_##op((val), TRCSSPCICRn(1)) \
274 CASE_##op((val), TRCSSPCICRn(2)) \
275 CASE_##op((val), TRCSSPCICRn(3)) \
276 CASE_##op((val), TRCSSPCICRn(4)) \
277 CASE_##op((val), TRCSSPCICRn(5)) \
278 CASE_##op((val), TRCSSPCICRn(6)) \
279 CASE_##op((val), TRCSSPCICRn(7)) \
280 CASE_##op((val), TRCOSLAR) \
281 CASE_##op((val), TRCOSLSR) \
282 CASE_##op((val), TRCACVRn(0)) \
283 CASE_##op((val), TRCACVRn(1)) \
284 CASE_##op((val), TRCACVRn(2)) \
285 CASE_##op((val), TRCACVRn(3)) \
286 CASE_##op((val), TRCACVRn(4)) \
287 CASE_##op((val), TRCACVRn(5)) \
288 CASE_##op((val), TRCACVRn(6)) \
289 CASE_##op((val), TRCACVRn(7)) \
290 CASE_##op((val), TRCACVRn(8)) \
291 CASE_##op((val), TRCACVRn(9)) \
292 CASE_##op((val), TRCACVRn(10)) \
293 CASE_##op((val), TRCACVRn(11)) \
294 CASE_##op((val), TRCACVRn(12)) \
295 CASE_##op((val), TRCACVRn(13)) \
296 CASE_##op((val), TRCACVRn(14)) \
297 CASE_##op((val), TRCACVRn(15)) \
298 CASE_##op((val), TRCACATRn(0)) \
299 CASE_##op((val), TRCACATRn(1)) \
300 CASE_##op((val), TRCACATRn(2)) \
301 CASE_##op((val), TRCACATRn(3)) \
302 CASE_##op((val), TRCACATRn(4)) \
303 CASE_##op((val), TRCACATRn(5)) \
304 CASE_##op((val), TRCACATRn(6)) \
305 CASE_##op((val), TRCACATRn(7)) \
306 CASE_##op((val), TRCACATRn(8)) \
307 CASE_##op((val), TRCACATRn(9)) \
308 CASE_##op((val), TRCACATRn(10)) \
309 CASE_##op((val), TRCACATRn(11)) \
310 CASE_##op((val), TRCACATRn(12)) \
311 CASE_##op((val), TRCACATRn(13)) \
312 CASE_##op((val), TRCACATRn(14)) \
313 CASE_##op((val), TRCACATRn(15)) \
314 CASE_##op((val), TRCDVCVRn(0)) \
315 CASE_##op((val), TRCDVCVRn(1)) \
316 CASE_##op((val), TRCDVCVRn(2)) \
317 CASE_##op((val), TRCDVCVRn(3)) \
318 CASE_##op((val), TRCDVCVRn(4)) \
319 CASE_##op((val), TRCDVCVRn(5)) \
320 CASE_##op((val), TRCDVCVRn(6)) \
321 CASE_##op((val), TRCDVCVRn(7)) \
322 CASE_##op((val), TRCDVCMRn(0)) \
323 CASE_##op((val), TRCDVCMRn(1)) \
324 CASE_##op((val), TRCDVCMRn(2)) \
325 CASE_##op((val), TRCDVCMRn(3)) \
326 CASE_##op((val), TRCDVCMRn(4)) \
327 CASE_##op((val), TRCDVCMRn(5)) \
328 CASE_##op((val), TRCDVCMRn(6)) \
329 CASE_##op((val), TRCDVCMRn(7)) \
330 CASE_##op((val), TRCCIDCVRn(0)) \
331 CASE_##op((val), TRCCIDCVRn(1)) \
332 CASE_##op((val), TRCCIDCVRn(2)) \
333 CASE_##op((val), TRCCIDCVRn(3)) \
334 CASE_##op((val), TRCCIDCVRn(4)) \
335 CASE_##op((val), TRCCIDCVRn(5)) \
336 CASE_##op((val), TRCCIDCVRn(6)) \
337 CASE_##op((val), TRCCIDCVRn(7)) \
338 CASE_##op((val), TRCVMIDCVRn(0)) \
339 CASE_##op((val), TRCVMIDCVRn(1)) \
340 CASE_##op((val), TRCVMIDCVRn(2)) \
341 CASE_##op((val), TRCVMIDCVRn(3)) \
342 CASE_##op((val), TRCVMIDCVRn(4)) \
343 CASE_##op((val), TRCVMIDCVRn(5)) \
344 CASE_##op((val), TRCVMIDCVRn(6)) \
345 CASE_##op((val), TRCVMIDCVRn(7)) \
346 CASE_##op((val), TRCCIDCCTLR0) \
347 CASE_##op((val), TRCCIDCCTLR1) \
348 CASE_##op((val), TRCVMIDCCTLR0) \
349 CASE_##op((val), TRCVMIDCCTLR1) \
350 CASE_##op((val), TRCCLAIMSET) \
351 CASE_##op((val), TRCCLAIMCLR) \
352 CASE_##op((val), TRCAUTHSTATUS) \
353 CASE_##op((val), TRCDEVARCH) \
354 CASE_##op((val), TRCDEVID)
356 /* List of registers only accessible via memory-mapped interface */
357 #define ETM_MMAP_LIST(op, val) \
358 CASE_##op((val), TRCDEVTYPE) \
359 CASE_##op((val), TRCPDCR) \
360 CASE_##op((val), TRCPDSR) \
361 CASE_##op((val), TRCDEVAFF0) \
362 CASE_##op((val), TRCDEVAFF1) \
363 CASE_##op((val), TRCLAR) \
364 CASE_##op((val), TRCLSR) \
365 CASE_##op((val), TRCITCTRL) \
366 CASE_##op((val), TRCPIDR4) \
367 CASE_##op((val), TRCPIDR0) \
368 CASE_##op((val), TRCPIDR1) \
369 CASE_##op((val), TRCPIDR2) \
370 CASE_##op((val), TRCPIDR3)
372 #define ETM4x_READ_SYSREG_CASES(res) ETM_SYSREG_LIST(READ, (res))
373 #define ETM4x_WRITE_SYSREG_CASES(val) ETM_SYSREG_LIST(WRITE, (val))
375 #define ETM4x_SYSREG_LIST_CASES ETM_SYSREG_LIST(NOP, __unused)
376 #define ETM4x_MMAP_LIST_CASES ETM_MMAP_LIST(NOP, __unused)
378 #define read_etm4x_sysreg_offset(offset, _64bit) \
382 if (__builtin_constant_p((offset))) \
383 __val = read_etm4x_sysreg_const_offset((offset)); \
385 __val = etm4x_sysreg_read((offset), true, (_64bit)); \
389 #define write_etm4x_sysreg_offset(val, offset, _64bit) \
391 if (__builtin_constant_p((offset))) \
392 write_etm4x_sysreg_const_offset((val), \
395 etm4x_sysreg_write((val), (offset), true, \
400 #define etm4x_relaxed_read32(csa, offset) \
401 ((u32)((csa)->io_mem ? \
402 readl_relaxed((csa)->base + (offset)) : \
403 read_etm4x_sysreg_offset((offset), false)))
405 #define etm4x_relaxed_read64(csa, offset) \
406 ((u64)((csa)->io_mem ? \
407 readq_relaxed((csa)->base + (offset)) : \
408 read_etm4x_sysreg_offset((offset), true)))
410 #define etm4x_read32(csa, offset) \
412 u32 __val = etm4x_relaxed_read32((csa), (offset)); \
417 #define etm4x_read64(csa, offset) \
419 u64 __val = etm4x_relaxed_read64((csa), (offset)); \
424 #define etm4x_relaxed_write32(csa, val, offset) \
427 writel_relaxed((val), (csa)->base + (offset)); \
429 write_etm4x_sysreg_offset((val), (offset), \
433 #define etm4x_relaxed_write64(csa, val, offset) \
436 writeq_relaxed((val), (csa)->base + (offset)); \
438 write_etm4x_sysreg_offset((val), (offset), \
442 #define etm4x_write32(csa, val, offset) \
445 etm4x_relaxed_write32((csa), (val), (offset)); \
448 #define etm4x_write64(csa, val, offset) \
451 etm4x_relaxed_write64((csa), (val), (offset)); \
455 /* ETMv4 resources */
456 #define ETM_MAX_NR_PE 8
457 #define ETMv4_MAX_CNTR 4
458 #define ETM_MAX_SEQ_STATES 4
459 #define ETM_MAX_EXT_INP_SEL 4
460 #define ETM_MAX_EXT_INP 256
461 #define ETM_MAX_EXT_OUT 4
462 #define ETM_MAX_SINGLE_ADDR_CMP 16
463 #define ETM_MAX_ADDR_RANGE_CMP (ETM_MAX_SINGLE_ADDR_CMP / 2)
464 #define ETM_MAX_DATA_VAL_CMP 8
465 #define ETMv4_MAX_CTXID_CMP 8
466 #define ETM_MAX_VMID_CMP 8
467 #define ETM_MAX_PE_CMP 8
468 #define ETM_MAX_RES_SEL 32
469 #define ETM_MAX_SS_CMP 8
471 #define ETMv4_SYNC_MASK 0x1F
472 #define ETM_CYC_THRESHOLD_MASK 0xFFF
473 #define ETM_CYC_THRESHOLD_DEFAULT 0x100
474 #define ETMv4_EVENT_MASK 0xFF
475 #define ETM_CNTR_MAX_VAL 0xFFFF
476 #define ETM_TRACEID_MASK 0x3f
478 /* ETMv4 programming modes */
479 #define ETM_MODE_EXCLUDE BIT(0)
480 #define ETM_MODE_LOAD BIT(1)
481 #define ETM_MODE_STORE BIT(2)
482 #define ETM_MODE_LOAD_STORE BIT(3)
483 #define ETM_MODE_BB BIT(4)
484 #define ETMv4_MODE_CYCACC BIT(5)
485 #define ETMv4_MODE_CTXID BIT(6)
486 #define ETM_MODE_VMID BIT(7)
487 #define ETM_MODE_COND(val) BMVAL(val, 8, 10)
488 #define ETMv4_MODE_TIMESTAMP BIT(11)
489 #define ETM_MODE_RETURNSTACK BIT(12)
490 #define ETM_MODE_QELEM(val) BMVAL(val, 13, 14)
491 #define ETM_MODE_DATA_TRACE_ADDR BIT(15)
492 #define ETM_MODE_DATA_TRACE_VAL BIT(16)
493 #define ETM_MODE_ISTALL BIT(17)
494 #define ETM_MODE_DSTALL BIT(18)
495 #define ETM_MODE_ATB_TRIGGER BIT(19)
496 #define ETM_MODE_LPOVERRIDE BIT(20)
497 #define ETM_MODE_ISTALL_EN BIT(21)
498 #define ETM_MODE_DSTALL_EN BIT(22)
499 #define ETM_MODE_INSTPRIO BIT(23)
500 #define ETM_MODE_NOOVERFLOW BIT(24)
501 #define ETM_MODE_TRACE_RESET BIT(25)
502 #define ETM_MODE_TRACE_ERR BIT(26)
503 #define ETM_MODE_VIEWINST_STARTSTOP BIT(27)
504 #define ETMv4_MODE_ALL (GENMASK(27, 0) | \
505 ETM_MODE_EXCL_KERN | \
509 * TRCDEVARCH Bit field definitions
510 * Bits[31:21] - ARCHITECT = Always Arm Ltd.
511 * * Bits[31:28] = 0x4
512 * * Bits[27:21] = 0b0111011
513 * Bit[20] - PRESENT, Indicates the presence of this register.
515 * Bit[19:16] - REVISION, Revision of the architecture.
517 * Bit[15:0] - ARCHID, Identifies this component as an ETM
518 * * Bits[15:12] - architecture version of ETM
520 * * Bits[11:0] = 0xA13, architecture part number for ETM.
522 #define ETM_DEVARCH_ARCHITECT_MASK GENMASK(31, 21)
523 #define ETM_DEVARCH_ARCHITECT_ARM ((0x4 << 28) | (0b0111011 << 21))
524 #define ETM_DEVARCH_PRESENT BIT(20)
525 #define ETM_DEVARCH_REVISION_SHIFT 16
526 #define ETM_DEVARCH_REVISION_MASK GENMASK(19, 16)
527 #define ETM_DEVARCH_REVISION(x) \
528 (((x) & ETM_DEVARCH_REVISION_MASK) >> ETM_DEVARCH_REVISION_SHIFT)
529 #define ETM_DEVARCH_ARCHID_MASK GENMASK(15, 0)
530 #define ETM_DEVARCH_ARCHID_ARCH_VER_SHIFT 12
531 #define ETM_DEVARCH_ARCHID_ARCH_VER_MASK GENMASK(15, 12)
532 #define ETM_DEVARCH_ARCHID_ARCH_VER(x) \
533 (((x) & ETM_DEVARCH_ARCHID_ARCH_VER_MASK) >> ETM_DEVARCH_ARCHID_ARCH_VER_SHIFT)
535 #define ETM_DEVARCH_MAKE_ARCHID_ARCH_VER(ver) \
536 (((ver) << ETM_DEVARCH_ARCHID_ARCH_VER_SHIFT) & ETM_DEVARCH_ARCHID_ARCH_VER_MASK)
538 #define ETM_DEVARCH_ARCHID_ARCH_PART(x) ((x) & 0xfffUL)
540 #define ETM_DEVARCH_MAKE_ARCHID(major) \
541 ((ETM_DEVARCH_MAKE_ARCHID_ARCH_VER(major)) | ETM_DEVARCH_ARCHID_ARCH_PART(0xA13))
543 #define ETM_DEVARCH_ARCHID_ETMv4x ETM_DEVARCH_MAKE_ARCHID(0x4)
545 #define ETM_DEVARCH_ID_MASK \
546 (ETM_DEVARCH_ARCHITECT_MASK | ETM_DEVARCH_ARCHID_MASK | ETM_DEVARCH_PRESENT)
547 #define ETM_DEVARCH_ETMv4x_ARCH \
548 (ETM_DEVARCH_ARCHITECT_ARM | ETM_DEVARCH_ARCHID_ETMv4x | ETM_DEVARCH_PRESENT)
550 #define TRCSTATR_IDLE_BIT 0
551 #define TRCSTATR_PMSTABLE_BIT 1
552 #define ETM_DEFAULT_ADDR_COMP 0
554 #define TRCSSCSRn_PC BIT(3)
556 /* PowerDown Control Register bits */
557 #define TRCPDCR_PU BIT(3)
559 #define TRCACATR_EXLEVEL_SHIFT 8
562 * Exception level mask for Secure and Non-Secure ELs.
563 * ETM defines the bits for EL control (e.g, TRVICTLR, TRCACTRn).
564 * The Secure and Non-Secure ELs are always to gether.
565 * Non-secure EL3 is never implemented.
566 * We use the following generic mask as they appear in different
567 * registers and this can be shifted for the appropriate
570 #define ETM_EXLEVEL_S_APP BIT(0) /* Secure EL0 */
571 #define ETM_EXLEVEL_S_OS BIT(1) /* Secure EL1 */
572 #define ETM_EXLEVEL_S_HYP BIT(2) /* Secure EL2 */
573 #define ETM_EXLEVEL_S_MON BIT(3) /* Secure EL3/Monitor */
574 #define ETM_EXLEVEL_NS_APP BIT(4) /* NonSecure EL0 */
575 #define ETM_EXLEVEL_NS_OS BIT(5) /* NonSecure EL1 */
576 #define ETM_EXLEVEL_NS_HYP BIT(6) /* NonSecure EL2 */
578 #define ETM_EXLEVEL_MASK (GENMASK(6, 0))
579 #define ETM_EXLEVEL_S_MASK (GENMASK(3, 0))
580 #define ETM_EXLEVEL_NS_MASK (GENMASK(6, 4))
582 /* access level controls in TRCACATRn */
583 #define TRCACATR_EXLEVEL_SHIFT 8
585 /* access level control in TRCVICTLR */
586 #define TRCVICTLR_EXLEVEL_SHIFT 16
587 #define TRCVICTLR_EXLEVEL_S_SHIFT 16
588 #define TRCVICTLR_EXLEVEL_NS_SHIFT 20
590 /* secure / non secure masks - TRCVICTLR, IDR3 */
591 #define TRCVICTLR_EXLEVEL_MASK (ETM_EXLEVEL_MASK << TRCVICTLR_EXLEVEL_SHIFT)
592 #define TRCVICTLR_EXLEVEL_S_MASK (ETM_EXLEVEL_S_MASK << TRCVICTLR_EXLEVEL_SHIFT)
593 #define TRCVICTLR_EXLEVEL_NS_MASK (ETM_EXLEVEL_NS_MASK << TRCVICTLR_EXLEVEL_SHIFT)
595 #define ETM_TRCIDR1_ARCH_MAJOR_SHIFT 8
596 #define ETM_TRCIDR1_ARCH_MAJOR_MASK (0xfU << ETM_TRCIDR1_ARCH_MAJOR_SHIFT)
597 #define ETM_TRCIDR1_ARCH_MAJOR(x) \
598 (((x) & ETM_TRCIDR1_ARCH_MAJOR_MASK) >> ETM_TRCIDR1_ARCH_MAJOR_SHIFT)
599 #define ETM_TRCIDR1_ARCH_MINOR_SHIFT 4
600 #define ETM_TRCIDR1_ARCH_MINOR_MASK (0xfU << ETM_TRCIDR1_ARCH_MINOR_SHIFT)
601 #define ETM_TRCIDR1_ARCH_MINOR(x) \
602 (((x) & ETM_TRCIDR1_ARCH_MINOR_MASK) >> ETM_TRCIDR1_ARCH_MINOR_SHIFT)
603 #define ETM_TRCIDR1_ARCH_SHIFT ETM_TRCIDR1_ARCH_MINOR_SHIFT
604 #define ETM_TRCIDR1_ARCH_MASK \
605 (ETM_TRCIDR1_ARCH_MAJOR_MASK | ETM_TRCIDR1_ARCH_MINOR_MASK)
607 #define ETM_TRCIDR1_ARCH_ETMv4 0x4
610 * Driver representation of the ETM architecture.
611 * The version of an ETM component can be detected from
613 * TRCDEVARCH - CoreSight architected register
614 * - Bits[15:12] - Major version
615 * - Bits[19:16] - Minor version
616 * TRCIDR1 - ETM architected register
617 * - Bits[11:8] - Major version
618 * - Bits[7:4] - Minor version
619 * We must rely on TRCDEVARCH for the version information,
620 * however we don't want to break the support for potential
621 * old implementations which might not implement it. Thus
622 * we fall back to TRCIDR1 if TRCDEVARCH is not implemented
623 * for memory mapped components.
624 * Now to make certain decisions easier based on the version
625 * we use an internal representation of the version in the
626 * driver, as follows :
628 * ETM_ARCH_VERSION[7:0], where :
629 * Bits[7:4] - Major version
630 * Bits[3:0] - Minro version
632 #define ETM_ARCH_VERSION(major, minor) \
633 ((((major) & 0xfU) << 4) | (((minor) & 0xfU)))
634 #define ETM_ARCH_MAJOR_VERSION(arch) (((arch) >> 4) & 0xfU)
635 #define ETM_ARCH_MINOR_VERSION(arch) ((arch) & 0xfU)
637 #define ETM_ARCH_V4 ETM_ARCH_VERSION(4, 0)
638 /* Interpretation of resource numbers change at ETM v4.3 architecture */
639 #define ETM_ARCH_V4_3 ETM_ARCH_VERSION(4, 3)
641 static inline u8 etm_devarch_to_arch(u32 devarch)
643 return ETM_ARCH_VERSION(ETM_DEVARCH_ARCHID_ARCH_VER(devarch),
644 ETM_DEVARCH_REVISION(devarch));
647 static inline u8 etm_trcidr_to_arch(u32 trcidr1)
649 return ETM_ARCH_VERSION(ETM_TRCIDR1_ARCH_MAJOR(trcidr1),
650 ETM_TRCIDR1_ARCH_MINOR(trcidr1));
653 enum etm_impdef_type {
654 ETM4_IMPDEF_HISI_CORE_COMMIT,
655 ETM4_IMPDEF_FEATURE_MAX,
659 * struct etmv4_config - configuration information related to an ETMv4
660 * @mode: Controls various modes supported by this ETM.
661 * @pe_sel: Controls which PE to trace.
662 * @cfg: Controls the tracing options.
663 * @eventctrl0: Controls the tracing of arbitrary events.
664 * @eventctrl1: Controls the behavior of the events that @event_ctrl0 selects.
665 * @stallctl: If functionality that prevents trace unit buffer overflows
667 * @ts_ctrl: Controls the insertion of global timestamps in the
669 * @syncfreq: Controls how often trace synchronization requests occur.
670 * the TRCCCCTLR register.
671 * @ccctlr: Sets the threshold value for cycle counting.
672 * @vinst_ctrl: Controls instruction trace filtering.
673 * @viiectlr: Set or read, the address range comparators.
674 * @vissctlr: Set, or read, the single address comparators that control the
675 * ViewInst start-stop logic.
676 * @vipcssctlr: Set, or read, which PE comparator inputs can control the
677 * ViewInst start-stop logic.
678 * @seq_idx: Sequencor index selector.
679 * @seq_ctrl: Control for the sequencer state transition control register.
680 * @seq_rst: Moves the sequencer to state 0 when a programmed event occurs.
681 * @seq_state: Set, or read the sequencer state.
682 * @cntr_idx: Counter index seletor.
683 * @cntrldvr: Sets or returns the reload count value for a counter.
684 * @cntr_ctrl: Controls the operation of a counter.
685 * @cntr_val: Sets or returns the value for a counter.
686 * @res_idx: Resource index selector.
687 * @res_ctrl: Controls the selection of the resources in the trace unit.
688 * @ss_idx: Single-shot index selector.
689 * @ss_ctrl: Controls the corresponding single-shot comparator resource.
690 * @ss_status: The status of the corresponding single-shot comparator.
691 * @ss_pe_cmp: Selects the PE comparator inputs for Single-shot control.
692 * @addr_idx: Address comparator index selector.
693 * @addr_val: Value for address comparator.
694 * @addr_acc: Address comparator access type.
695 * @addr_type: Current status of the comparator register.
696 * @ctxid_idx: Context ID index selector.
697 * @ctxid_pid: Value of the context ID comparator.
698 * @ctxid_mask0:Context ID comparator mask for comparator 0-3.
699 * @ctxid_mask1:Context ID comparator mask for comparator 4-7.
700 * @vmid_idx: VM ID index selector.
701 * @vmid_val: Value of the VM ID comparator.
702 * @vmid_mask0: VM ID comparator mask for comparator 0-3.
703 * @vmid_mask1: VM ID comparator mask for comparator 4-7.
704 * @ext_inp: External input selection.
705 * @s_ex_level: Secure ELs where tracing is supported.
707 struct etmv4_config {
723 u32 seq_ctrl[ETM_MAX_SEQ_STATES];
727 u32 cntrldvr[ETMv4_MAX_CNTR];
728 u32 cntr_ctrl[ETMv4_MAX_CNTR];
729 u32 cntr_val[ETMv4_MAX_CNTR];
731 u32 res_ctrl[ETM_MAX_RES_SEL];
733 u32 ss_ctrl[ETM_MAX_SS_CMP];
734 u32 ss_status[ETM_MAX_SS_CMP];
735 u32 ss_pe_cmp[ETM_MAX_SS_CMP];
737 u64 addr_val[ETM_MAX_SINGLE_ADDR_CMP];
738 u64 addr_acc[ETM_MAX_SINGLE_ADDR_CMP];
739 u8 addr_type[ETM_MAX_SINGLE_ADDR_CMP];
741 u64 ctxid_pid[ETMv4_MAX_CTXID_CMP];
745 u64 vmid_val[ETM_MAX_VMID_CMP];
753 * struct etm4_save_state - state to be preserved when ETM is without power
755 struct etmv4_save_state {
778 u32 trcseqevr[ETM_MAX_SEQ_STATES];
782 u32 trccntrldvr[ETMv4_MAX_CNTR];
783 u32 trccntctlr[ETMv4_MAX_CNTR];
784 u32 trccntvr[ETMv4_MAX_CNTR];
786 u32 trcrsctlr[ETM_MAX_RES_SEL];
788 u32 trcssccr[ETM_MAX_SS_CMP];
789 u32 trcsscsr[ETM_MAX_SS_CMP];
790 u32 trcsspcicr[ETM_MAX_SS_CMP];
792 u64 trcacvr[ETM_MAX_SINGLE_ADDR_CMP];
793 u64 trcacatr[ETM_MAX_SINGLE_ADDR_CMP];
794 u64 trccidcvr[ETMv4_MAX_CTXID_CMP];
795 u64 trcvmidcvr[ETM_MAX_VMID_CMP];
803 u32 cntr_val[ETMv4_MAX_CNTR];
806 u32 ss_status[ETM_MAX_SS_CMP];
812 * struct etm4_drvdata - specifics associated to an ETM component
813 * @base: Memory mapped base address for this component.
814 * @csdev: Component vitals needed by the framework.
815 * @spinlock: Only one at a time pls.
816 * @mode: This tracer's mode, i.e sysFS, Perf or disabled.
817 * @cpu: The cpu this component is affined to.
818 * @arch: ETM architecture version.
819 * @nr_pe: The number of processing entity available for tracing.
820 * @nr_pe_cmp: The number of processing entity comparator inputs that are
821 * available for tracing.
822 * @nr_addr_cmp:Number of pairs of address comparators available
823 * as found in ETMIDR4 0-3.
824 * @nr_cntr: Number of counters as found in ETMIDR5 bit 28-30.
825 * @nr_ext_inp: Number of external input.
826 * @numcidc: Number of contextID comparators.
827 * @numvmidc: Number of VMID comparators.
828 * @nrseqstate: The number of sequencer states that are implemented.
829 * @nr_event: Indicates how many events the trace unit support.
830 * @nr_resource:The number of resource selection pairs available for tracing.
831 * @nr_ss_cmp: Number of single-shot comparator controls that are available.
832 * @trcid: value of the current ID for this component.
833 * @trcid_size: Indicates the trace ID width.
834 * @ts_size: Global timestamp size field.
835 * @ctxid_size: Size of the context ID field to consider.
836 * @vmid_size: Size of the VM ID comparator to consider.
837 * @ccsize: Indicates the size of the cycle counter in bits.
838 * @ccitmin: minimum value that can be programmed in
839 * @s_ex_level: In secure state, indicates whether instruction tracing is
840 * supported for the corresponding Exception level.
841 * @ns_ex_level:In non-secure state, indicates whether instruction tracing is
842 * supported for the corresponding Exception level.
843 * @sticky_enable: true if ETM base configuration has been done.
844 * @boot_enable:True if we should start tracing at boot time.
845 * @os_unlock: True if access to management registers is allowed.
846 * @instrp0: Tracing of load and store instructions
847 * as P0 elements is supported.
848 * @trcbb: Indicates if the trace unit supports branch broadcast tracing.
849 * @trccond: If the trace unit supports conditional
850 * instruction tracing.
851 * @retstack: Indicates if the implementation supports a return stack.
852 * @trccci: Indicates if the trace unit supports cycle counting
854 * @q_support: Q element support characteristics.
855 * @trc_error: Whether a trace unit can trace a system
857 * @syncpr: Indicates if an implementation has a fixed
858 * synchronization period.
859 * @stall_ctrl: Enables trace unit functionality that prevents trace
860 * unit buffer overflows.
861 * @sysstall: Does the system support stall control of the PE?
862 * @nooverflow: Indicate if overflow prevention is supported.
863 * @atbtrig: If the implementation can support ATB triggers
864 * @lpoverride: If the implementation can support low-power state over.
865 * @trfc: If the implementation supports Arm v8.4 trace filter controls.
866 * @config: structure holding configuration parameters.
867 * @save_state: State to be preserved across power loss
868 * @state_needs_restore: True when there is context to restore after PM exit
869 * @skip_power_up: Indicates if an implementation can skip powering up
871 * @arch_features: Bitmap of arch features of etmv4 devices.
873 struct etmv4_drvdata {
875 struct coresight_device *csdev;
917 struct etmv4_config config;
918 struct etmv4_save_state *save_state;
919 bool state_needs_restore;
921 DECLARE_BITMAP(arch_features, ETM4_IMPDEF_FEATURE_MAX);
924 /* Address comparator access types */
925 enum etm_addr_acctype {
929 ETM_DATA_LOAD_STORE_ADDR,
932 /* Address comparator context types */
933 enum etm_addr_ctxtype {
940 extern const struct attribute_group *coresight_etmv4_groups[];
941 void etm4_config_trace_mode(struct etmv4_config *config);
943 u64 etm4x_sysreg_read(u32 offset, bool _relaxed, bool _64bit);
944 void etm4x_sysreg_write(u64 val, u32 offset, bool _relaxed, bool _64bit);