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 /* Derived resources registers */ 47 #define TRCSEQEVRn(n) (0x100 + (n * 4)) /* n = 0-2 */ 48 #define TRCSEQRSTEVR 0x118 49 #define TRCSEQSTR 0x11C 50 #define TRCEXTINSELR 0x120 51 #define TRCEXTINSELRn(n) (0x120 + (n * 4)) /* n = 0-3 */ 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 */ 55 /* ID registers */ 56 #define TRCIDR8 0x180 57 #define TRCIDR9 0x184 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 */ 64 #define TRCIDR0 0x1E0 65 #define TRCIDR1 0x1E4 66 #define TRCIDR2 0x1E8 67 #define TRCIDR3 0x1EC 68 #define TRCIDR4 0x1F0 69 #define TRCIDR5 0x1F4 70 #define TRCIDR6 0x1F8 71 #define TRCIDR7 0x1FC 72 /* 73 * Resource selection registers, n = 2-31. 74 * First pair (regs 0, 1) is always present and is reserved. 75 */ 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 84 #define TRCPDCR 0x310 85 #define TRCPDSR 0x314 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 /* ContextID/Virtual ContextID comparators, n = 0-7 */ 91 #define TRCCIDCVRn(n) (0x600 + (n * 8)) 92 #define TRCVMIDCVRn(n) (0x640 + (n * 8)) 93 #define TRCCIDCCTLR0 0x680 94 #define TRCCIDCCTLR1 0x684 95 #define TRCVMIDCCTLR0 0x688 96 #define TRCVMIDCCTLR1 0x68C 97 /* Management register (0xF00) */ 98 /* Integration control registers */ 99 #define TRCITCTRL 0xF00 100 /* Trace registers (0xFA0-0xFA4) */ 101 /* Claim tag registers */ 102 #define TRCCLAIMSET 0xFA0 103 #define TRCCLAIMCLR 0xFA4 104 /* Management registers (0xFA8-0xFFC) */ 105 #define TRCDEVAFF0 0xFA8 106 #define TRCDEVAFF1 0xFAC 107 #define TRCLAR 0xFB0 108 #define TRCLSR 0xFB4 109 #define TRCAUTHSTATUS 0xFB8 110 #define TRCDEVARCH 0xFBC 111 #define TRCDEVID 0xFC8 112 #define TRCDEVTYPE 0xFCC 113 #define TRCPIDR4 0xFD0 114 #define TRCPIDR5 0xFD4 115 #define TRCPIDR6 0xFD8 116 #define TRCPIDR7 0xFDC 117 #define TRCPIDR0 0xFE0 118 #define TRCPIDR1 0xFE4 119 #define TRCPIDR2 0xFE8 120 #define TRCPIDR3 0xFEC 121 #define TRCCIDR0 0xFF0 122 #define TRCCIDR1 0xFF4 123 #define TRCCIDR2 0xFF8 124 #define TRCCIDR3 0xFFC 125 126 #define TRCRSR_TA BIT(12) 127 128 /* 129 * Bit positions of registers that are defined above, in the sysreg.h style 130 * of _MASK for multi bit fields and BIT() for single bits. 131 */ 132 #define TRCIDR0_INSTP0_MASK GENMASK(2, 1) 133 #define TRCIDR0_TRCBB BIT(5) 134 #define TRCIDR0_TRCCOND BIT(6) 135 #define TRCIDR0_TRCCCI BIT(7) 136 #define TRCIDR0_RETSTACK BIT(9) 137 #define TRCIDR0_NUMEVENT_MASK GENMASK(11, 10) 138 #define TRCIDR0_QFILT BIT(14) 139 #define TRCIDR0_QSUPP_MASK GENMASK(16, 15) 140 #define TRCIDR0_TSSIZE_MASK GENMASK(28, 24) 141 142 #define TRCIDR2_CIDSIZE_MASK GENMASK(9, 5) 143 #define TRCIDR2_VMIDSIZE_MASK GENMASK(14, 10) 144 #define TRCIDR2_CCSIZE_MASK GENMASK(28, 25) 145 146 #define TRCIDR3_CCITMIN_MASK GENMASK(11, 0) 147 #define TRCIDR3_EXLEVEL_S_MASK GENMASK(19, 16) 148 #define TRCIDR3_EXLEVEL_NS_MASK GENMASK(23, 20) 149 #define TRCIDR3_TRCERR BIT(24) 150 #define TRCIDR3_SYNCPR BIT(25) 151 #define TRCIDR3_STALLCTL BIT(26) 152 #define TRCIDR3_SYSSTALL BIT(27) 153 #define TRCIDR3_NUMPROC_LO_MASK GENMASK(30, 28) 154 #define TRCIDR3_NUMPROC_HI_MASK GENMASK(13, 12) 155 #define TRCIDR3_NOOVERFLOW BIT(31) 156 157 #define TRCIDR4_NUMACPAIRS_MASK GENMASK(3, 0) 158 #define TRCIDR4_NUMPC_MASK GENMASK(15, 12) 159 #define TRCIDR4_NUMRSPAIR_MASK GENMASK(19, 16) 160 #define TRCIDR4_NUMSSCC_MASK GENMASK(23, 20) 161 #define TRCIDR4_NUMCIDC_MASK GENMASK(27, 24) 162 #define TRCIDR4_NUMVMIDC_MASK GENMASK(31, 28) 163 164 #define TRCIDR5_NUMEXTIN_MASK GENMASK(8, 0) 165 #define TRCIDR5_TRACEIDSIZE_MASK GENMASK(21, 16) 166 #define TRCIDR5_ATBTRIG BIT(22) 167 #define TRCIDR5_LPOVERRIDE BIT(23) 168 #define TRCIDR5_NUMSEQSTATE_MASK GENMASK(27, 25) 169 #define TRCIDR5_NUMCNTR_MASK GENMASK(30, 28) 170 171 #define TRCCONFIGR_INSTP0_LOAD BIT(1) 172 #define TRCCONFIGR_INSTP0_STORE BIT(2) 173 #define TRCCONFIGR_INSTP0_LOAD_STORE (TRCCONFIGR_INSTP0_LOAD | TRCCONFIGR_INSTP0_STORE) 174 #define TRCCONFIGR_BB BIT(3) 175 #define TRCCONFIGR_CCI BIT(4) 176 #define TRCCONFIGR_CID BIT(6) 177 #define TRCCONFIGR_VMID BIT(7) 178 #define TRCCONFIGR_COND_MASK GENMASK(10, 8) 179 #define TRCCONFIGR_TS BIT(11) 180 #define TRCCONFIGR_RS BIT(12) 181 #define TRCCONFIGR_QE_W_COUNTS BIT(13) 182 #define TRCCONFIGR_QE_WO_COUNTS BIT(14) 183 #define TRCCONFIGR_VMIDOPT BIT(15) 184 #define TRCCONFIGR_DA BIT(16) 185 #define TRCCONFIGR_DV BIT(17) 186 187 #define TRCEVENTCTL1R_INSTEN_MASK GENMASK(3, 0) 188 #define TRCEVENTCTL1R_INSTEN_0 BIT(0) 189 #define TRCEVENTCTL1R_INSTEN_1 BIT(1) 190 #define TRCEVENTCTL1R_INSTEN_2 BIT(2) 191 #define TRCEVENTCTL1R_INSTEN_3 BIT(3) 192 #define TRCEVENTCTL1R_ATB BIT(11) 193 #define TRCEVENTCTL1R_LPOVERRIDE BIT(12) 194 195 #define TRCSTALLCTLR_ISTALL BIT(8) 196 #define TRCSTALLCTLR_INSTPRIORITY BIT(10) 197 #define TRCSTALLCTLR_NOOVERFLOW BIT(13) 198 199 #define TRCVICTLR_EVENT_MASK GENMASK(7, 0) 200 #define TRCVICTLR_SSSTATUS BIT(9) 201 #define TRCVICTLR_TRCRESET BIT(10) 202 #define TRCVICTLR_TRCERR BIT(11) 203 #define TRCVICTLR_EXLEVEL_MASK GENMASK(22, 16) 204 #define TRCVICTLR_EXLEVEL_S_MASK GENMASK(19, 16) 205 #define TRCVICTLR_EXLEVEL_NS_MASK GENMASK(22, 20) 206 207 #define TRCACATRn_TYPE_MASK GENMASK(1, 0) 208 #define TRCACATRn_CONTEXTTYPE_MASK GENMASK(3, 2) 209 #define TRCACATRn_CONTEXTTYPE_CTXID BIT(2) 210 #define TRCACATRn_CONTEXTTYPE_VMID BIT(3) 211 #define TRCACATRn_CONTEXT_MASK GENMASK(6, 4) 212 #define TRCACATRn_EXLEVEL_MASK GENMASK(14, 8) 213 214 #define TRCSSCSRn_STATUS BIT(31) 215 #define TRCSSCCRn_SAC_ARC_RST_MASK GENMASK(24, 0) 216 217 #define TRCSSPCICRn_PC_MASK GENMASK(7, 0) 218 219 #define TRCBBCTLR_MODE BIT(8) 220 #define TRCBBCTLR_RANGE_MASK GENMASK(7, 0) 221 222 #define TRCRSCTLRn_PAIRINV BIT(21) 223 #define TRCRSCTLRn_INV BIT(20) 224 #define TRCRSCTLRn_GROUP_MASK GENMASK(19, 16) 225 #define TRCRSCTLRn_SELECT_MASK GENMASK(15, 0) 226 227 /* 228 * System instructions to access ETM registers. 229 * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions 230 */ 231 #define ETM4x_OFFSET_TO_REG(x) ((x) >> 2) 232 233 #define ETM4x_CRn(n) (((n) >> 7) & 0x7) 234 #define ETM4x_Op2(n) (((n) >> 4) & 0x7) 235 #define ETM4x_CRm(n) ((n) & 0xf) 236 237 #include <asm/sysreg.h> 238 #define ETM4x_REG_NUM_TO_SYSREG(n) \ 239 sys_reg(2, 1, ETM4x_CRn(n), ETM4x_CRm(n), ETM4x_Op2(n)) 240 241 #define READ_ETM4x_REG(reg) \ 242 read_sysreg_s(ETM4x_REG_NUM_TO_SYSREG((reg))) 243 #define WRITE_ETM4x_REG(val, reg) \ 244 write_sysreg_s(val, ETM4x_REG_NUM_TO_SYSREG((reg))) 245 246 #define read_etm4x_sysreg_const_offset(offset) \ 247 READ_ETM4x_REG(ETM4x_OFFSET_TO_REG(offset)) 248 249 #define write_etm4x_sysreg_const_offset(val, offset) \ 250 WRITE_ETM4x_REG(val, ETM4x_OFFSET_TO_REG(offset)) 251 252 #define CASE_READ(res, x) \ 253 case (x): { (res) = read_etm4x_sysreg_const_offset((x)); break; } 254 255 #define CASE_WRITE(val, x) \ 256 case (x): { write_etm4x_sysreg_const_offset((val), (x)); break; } 257 258 #define CASE_NOP(__unused, x) \ 259 case (x): /* fall through */ 260 261 #define ETE_ONLY_SYSREG_LIST(op, val) \ 262 CASE_##op((val), TRCRSR) \ 263 CASE_##op((val), TRCEXTINSELRn(1)) \ 264 CASE_##op((val), TRCEXTINSELRn(2)) \ 265 CASE_##op((val), TRCEXTINSELRn(3)) 266 267 /* List of registers accessible via System instructions */ 268 #define ETM4x_ONLY_SYSREG_LIST(op, val) \ 269 CASE_##op((val), TRCPROCSELR) \ 270 CASE_##op((val), TRCOSLAR) 271 272 #define ETM_COMMON_SYSREG_LIST(op, val) \ 273 CASE_##op((val), TRCPRGCTLR) \ 274 CASE_##op((val), TRCSTATR) \ 275 CASE_##op((val), TRCCONFIGR) \ 276 CASE_##op((val), TRCAUXCTLR) \ 277 CASE_##op((val), TRCEVENTCTL0R) \ 278 CASE_##op((val), TRCEVENTCTL1R) \ 279 CASE_##op((val), TRCSTALLCTLR) \ 280 CASE_##op((val), TRCTSCTLR) \ 281 CASE_##op((val), TRCSYNCPR) \ 282 CASE_##op((val), TRCCCCTLR) \ 283 CASE_##op((val), TRCBBCTLR) \ 284 CASE_##op((val), TRCTRACEIDR) \ 285 CASE_##op((val), TRCQCTLR) \ 286 CASE_##op((val), TRCVICTLR) \ 287 CASE_##op((val), TRCVIIECTLR) \ 288 CASE_##op((val), TRCVISSCTLR) \ 289 CASE_##op((val), TRCVIPCSSCTLR) \ 290 CASE_##op((val), TRCSEQEVRn(0)) \ 291 CASE_##op((val), TRCSEQEVRn(1)) \ 292 CASE_##op((val), TRCSEQEVRn(2)) \ 293 CASE_##op((val), TRCSEQRSTEVR) \ 294 CASE_##op((val), TRCSEQSTR) \ 295 CASE_##op((val), TRCEXTINSELR) \ 296 CASE_##op((val), TRCCNTRLDVRn(0)) \ 297 CASE_##op((val), TRCCNTRLDVRn(1)) \ 298 CASE_##op((val), TRCCNTRLDVRn(2)) \ 299 CASE_##op((val), TRCCNTRLDVRn(3)) \ 300 CASE_##op((val), TRCCNTCTLRn(0)) \ 301 CASE_##op((val), TRCCNTCTLRn(1)) \ 302 CASE_##op((val), TRCCNTCTLRn(2)) \ 303 CASE_##op((val), TRCCNTCTLRn(3)) \ 304 CASE_##op((val), TRCCNTVRn(0)) \ 305 CASE_##op((val), TRCCNTVRn(1)) \ 306 CASE_##op((val), TRCCNTVRn(2)) \ 307 CASE_##op((val), TRCCNTVRn(3)) \ 308 CASE_##op((val), TRCIDR8) \ 309 CASE_##op((val), TRCIDR9) \ 310 CASE_##op((val), TRCIDR10) \ 311 CASE_##op((val), TRCIDR11) \ 312 CASE_##op((val), TRCIDR12) \ 313 CASE_##op((val), TRCIDR13) \ 314 CASE_##op((val), TRCIMSPECn(0)) \ 315 CASE_##op((val), TRCIMSPECn(1)) \ 316 CASE_##op((val), TRCIMSPECn(2)) \ 317 CASE_##op((val), TRCIMSPECn(3)) \ 318 CASE_##op((val), TRCIMSPECn(4)) \ 319 CASE_##op((val), TRCIMSPECn(5)) \ 320 CASE_##op((val), TRCIMSPECn(6)) \ 321 CASE_##op((val), TRCIMSPECn(7)) \ 322 CASE_##op((val), TRCIDR0) \ 323 CASE_##op((val), TRCIDR1) \ 324 CASE_##op((val), TRCIDR2) \ 325 CASE_##op((val), TRCIDR3) \ 326 CASE_##op((val), TRCIDR4) \ 327 CASE_##op((val), TRCIDR5) \ 328 CASE_##op((val), TRCIDR6) \ 329 CASE_##op((val), TRCIDR7) \ 330 CASE_##op((val), TRCRSCTLRn(2)) \ 331 CASE_##op((val), TRCRSCTLRn(3)) \ 332 CASE_##op((val), TRCRSCTLRn(4)) \ 333 CASE_##op((val), TRCRSCTLRn(5)) \ 334 CASE_##op((val), TRCRSCTLRn(6)) \ 335 CASE_##op((val), TRCRSCTLRn(7)) \ 336 CASE_##op((val), TRCRSCTLRn(8)) \ 337 CASE_##op((val), TRCRSCTLRn(9)) \ 338 CASE_##op((val), TRCRSCTLRn(10)) \ 339 CASE_##op((val), TRCRSCTLRn(11)) \ 340 CASE_##op((val), TRCRSCTLRn(12)) \ 341 CASE_##op((val), TRCRSCTLRn(13)) \ 342 CASE_##op((val), TRCRSCTLRn(14)) \ 343 CASE_##op((val), TRCRSCTLRn(15)) \ 344 CASE_##op((val), TRCRSCTLRn(16)) \ 345 CASE_##op((val), TRCRSCTLRn(17)) \ 346 CASE_##op((val), TRCRSCTLRn(18)) \ 347 CASE_##op((val), TRCRSCTLRn(19)) \ 348 CASE_##op((val), TRCRSCTLRn(20)) \ 349 CASE_##op((val), TRCRSCTLRn(21)) \ 350 CASE_##op((val), TRCRSCTLRn(22)) \ 351 CASE_##op((val), TRCRSCTLRn(23)) \ 352 CASE_##op((val), TRCRSCTLRn(24)) \ 353 CASE_##op((val), TRCRSCTLRn(25)) \ 354 CASE_##op((val), TRCRSCTLRn(26)) \ 355 CASE_##op((val), TRCRSCTLRn(27)) \ 356 CASE_##op((val), TRCRSCTLRn(28)) \ 357 CASE_##op((val), TRCRSCTLRn(29)) \ 358 CASE_##op((val), TRCRSCTLRn(30)) \ 359 CASE_##op((val), TRCRSCTLRn(31)) \ 360 CASE_##op((val), TRCSSCCRn(0)) \ 361 CASE_##op((val), TRCSSCCRn(1)) \ 362 CASE_##op((val), TRCSSCCRn(2)) \ 363 CASE_##op((val), TRCSSCCRn(3)) \ 364 CASE_##op((val), TRCSSCCRn(4)) \ 365 CASE_##op((val), TRCSSCCRn(5)) \ 366 CASE_##op((val), TRCSSCCRn(6)) \ 367 CASE_##op((val), TRCSSCCRn(7)) \ 368 CASE_##op((val), TRCSSCSRn(0)) \ 369 CASE_##op((val), TRCSSCSRn(1)) \ 370 CASE_##op((val), TRCSSCSRn(2)) \ 371 CASE_##op((val), TRCSSCSRn(3)) \ 372 CASE_##op((val), TRCSSCSRn(4)) \ 373 CASE_##op((val), TRCSSCSRn(5)) \ 374 CASE_##op((val), TRCSSCSRn(6)) \ 375 CASE_##op((val), TRCSSCSRn(7)) \ 376 CASE_##op((val), TRCSSPCICRn(0)) \ 377 CASE_##op((val), TRCSSPCICRn(1)) \ 378 CASE_##op((val), TRCSSPCICRn(2)) \ 379 CASE_##op((val), TRCSSPCICRn(3)) \ 380 CASE_##op((val), TRCSSPCICRn(4)) \ 381 CASE_##op((val), TRCSSPCICRn(5)) \ 382 CASE_##op((val), TRCSSPCICRn(6)) \ 383 CASE_##op((val), TRCSSPCICRn(7)) \ 384 CASE_##op((val), TRCOSLSR) \ 385 CASE_##op((val), TRCACVRn(0)) \ 386 CASE_##op((val), TRCACVRn(1)) \ 387 CASE_##op((val), TRCACVRn(2)) \ 388 CASE_##op((val), TRCACVRn(3)) \ 389 CASE_##op((val), TRCACVRn(4)) \ 390 CASE_##op((val), TRCACVRn(5)) \ 391 CASE_##op((val), TRCACVRn(6)) \ 392 CASE_##op((val), TRCACVRn(7)) \ 393 CASE_##op((val), TRCACVRn(8)) \ 394 CASE_##op((val), TRCACVRn(9)) \ 395 CASE_##op((val), TRCACVRn(10)) \ 396 CASE_##op((val), TRCACVRn(11)) \ 397 CASE_##op((val), TRCACVRn(12)) \ 398 CASE_##op((val), TRCACVRn(13)) \ 399 CASE_##op((val), TRCACVRn(14)) \ 400 CASE_##op((val), TRCACVRn(15)) \ 401 CASE_##op((val), TRCACATRn(0)) \ 402 CASE_##op((val), TRCACATRn(1)) \ 403 CASE_##op((val), TRCACATRn(2)) \ 404 CASE_##op((val), TRCACATRn(3)) \ 405 CASE_##op((val), TRCACATRn(4)) \ 406 CASE_##op((val), TRCACATRn(5)) \ 407 CASE_##op((val), TRCACATRn(6)) \ 408 CASE_##op((val), TRCACATRn(7)) \ 409 CASE_##op((val), TRCACATRn(8)) \ 410 CASE_##op((val), TRCACATRn(9)) \ 411 CASE_##op((val), TRCACATRn(10)) \ 412 CASE_##op((val), TRCACATRn(11)) \ 413 CASE_##op((val), TRCACATRn(12)) \ 414 CASE_##op((val), TRCACATRn(13)) \ 415 CASE_##op((val), TRCACATRn(14)) \ 416 CASE_##op((val), TRCACATRn(15)) \ 417 CASE_##op((val), TRCCIDCVRn(0)) \ 418 CASE_##op((val), TRCCIDCVRn(1)) \ 419 CASE_##op((val), TRCCIDCVRn(2)) \ 420 CASE_##op((val), TRCCIDCVRn(3)) \ 421 CASE_##op((val), TRCCIDCVRn(4)) \ 422 CASE_##op((val), TRCCIDCVRn(5)) \ 423 CASE_##op((val), TRCCIDCVRn(6)) \ 424 CASE_##op((val), TRCCIDCVRn(7)) \ 425 CASE_##op((val), TRCVMIDCVRn(0)) \ 426 CASE_##op((val), TRCVMIDCVRn(1)) \ 427 CASE_##op((val), TRCVMIDCVRn(2)) \ 428 CASE_##op((val), TRCVMIDCVRn(3)) \ 429 CASE_##op((val), TRCVMIDCVRn(4)) \ 430 CASE_##op((val), TRCVMIDCVRn(5)) \ 431 CASE_##op((val), TRCVMIDCVRn(6)) \ 432 CASE_##op((val), TRCVMIDCVRn(7)) \ 433 CASE_##op((val), TRCCIDCCTLR0) \ 434 CASE_##op((val), TRCCIDCCTLR1) \ 435 CASE_##op((val), TRCVMIDCCTLR0) \ 436 CASE_##op((val), TRCVMIDCCTLR1) \ 437 CASE_##op((val), TRCCLAIMSET) \ 438 CASE_##op((val), TRCCLAIMCLR) \ 439 CASE_##op((val), TRCAUTHSTATUS) \ 440 CASE_##op((val), TRCDEVARCH) \ 441 CASE_##op((val), TRCDEVID) 442 443 /* List of registers only accessible via memory-mapped interface */ 444 #define ETM_MMAP_LIST(op, val) \ 445 CASE_##op((val), TRCDEVTYPE) \ 446 CASE_##op((val), TRCPDCR) \ 447 CASE_##op((val), TRCPDSR) \ 448 CASE_##op((val), TRCDEVAFF0) \ 449 CASE_##op((val), TRCDEVAFF1) \ 450 CASE_##op((val), TRCLAR) \ 451 CASE_##op((val), TRCLSR) \ 452 CASE_##op((val), TRCITCTRL) \ 453 CASE_##op((val), TRCPIDR4) \ 454 CASE_##op((val), TRCPIDR0) \ 455 CASE_##op((val), TRCPIDR1) \ 456 CASE_##op((val), TRCPIDR2) \ 457 CASE_##op((val), TRCPIDR3) 458 459 #define ETM4x_READ_SYSREG_CASES(res) \ 460 ETM_COMMON_SYSREG_LIST(READ, (res)) \ 461 ETM4x_ONLY_SYSREG_LIST(READ, (res)) 462 463 #define ETM4x_WRITE_SYSREG_CASES(val) \ 464 ETM_COMMON_SYSREG_LIST(WRITE, (val)) \ 465 ETM4x_ONLY_SYSREG_LIST(WRITE, (val)) 466 467 #define ETM_COMMON_SYSREG_LIST_CASES \ 468 ETM_COMMON_SYSREG_LIST(NOP, __unused) 469 470 #define ETM4x_ONLY_SYSREG_LIST_CASES \ 471 ETM4x_ONLY_SYSREG_LIST(NOP, __unused) 472 473 #define ETM4x_SYSREG_LIST_CASES \ 474 ETM_COMMON_SYSREG_LIST_CASES \ 475 ETM4x_ONLY_SYSREG_LIST(NOP, __unused) 476 477 #define ETM4x_MMAP_LIST_CASES ETM_MMAP_LIST(NOP, __unused) 478 479 /* ETE only supports system register access */ 480 #define ETE_READ_CASES(res) \ 481 ETM_COMMON_SYSREG_LIST(READ, (res)) \ 482 ETE_ONLY_SYSREG_LIST(READ, (res)) 483 484 #define ETE_WRITE_CASES(val) \ 485 ETM_COMMON_SYSREG_LIST(WRITE, (val)) \ 486 ETE_ONLY_SYSREG_LIST(WRITE, (val)) 487 488 #define ETE_ONLY_SYSREG_LIST_CASES \ 489 ETE_ONLY_SYSREG_LIST(NOP, __unused) 490 491 #define read_etm4x_sysreg_offset(offset, _64bit) \ 492 ({ \ 493 u64 __val; \ 494 \ 495 if (__is_constexpr((offset))) \ 496 __val = read_etm4x_sysreg_const_offset((offset)); \ 497 else \ 498 __val = etm4x_sysreg_read((offset), true, (_64bit)); \ 499 __val; \ 500 }) 501 502 #define write_etm4x_sysreg_offset(val, offset, _64bit) \ 503 do { \ 504 if (__builtin_constant_p((offset))) \ 505 write_etm4x_sysreg_const_offset((val), \ 506 (offset)); \ 507 else \ 508 etm4x_sysreg_write((val), (offset), true, \ 509 (_64bit)); \ 510 } while (0) 511 512 513 #define etm4x_relaxed_read32(csa, offset) \ 514 ((u32)((csa)->io_mem ? \ 515 readl_relaxed((csa)->base + (offset)) : \ 516 read_etm4x_sysreg_offset((offset), false))) 517 518 #define etm4x_relaxed_read64(csa, offset) \ 519 ((u64)((csa)->io_mem ? \ 520 readq_relaxed((csa)->base + (offset)) : \ 521 read_etm4x_sysreg_offset((offset), true))) 522 523 #define etm4x_read32(csa, offset) \ 524 ({ \ 525 u32 __val = etm4x_relaxed_read32((csa), (offset)); \ 526 __io_ar(__val); \ 527 __val; \ 528 }) 529 530 #define etm4x_read64(csa, offset) \ 531 ({ \ 532 u64 __val = etm4x_relaxed_read64((csa), (offset)); \ 533 __io_ar(__val); \ 534 __val; \ 535 }) 536 537 #define etm4x_relaxed_write32(csa, val, offset) \ 538 do { \ 539 if ((csa)->io_mem) \ 540 writel_relaxed((val), (csa)->base + (offset)); \ 541 else \ 542 write_etm4x_sysreg_offset((val), (offset), \ 543 false); \ 544 } while (0) 545 546 #define etm4x_relaxed_write64(csa, val, offset) \ 547 do { \ 548 if ((csa)->io_mem) \ 549 writeq_relaxed((val), (csa)->base + (offset)); \ 550 else \ 551 write_etm4x_sysreg_offset((val), (offset), \ 552 true); \ 553 } while (0) 554 555 #define etm4x_write32(csa, val, offset) \ 556 do { \ 557 __io_bw(); \ 558 etm4x_relaxed_write32((csa), (val), (offset)); \ 559 } while (0) 560 561 #define etm4x_write64(csa, val, offset) \ 562 do { \ 563 __io_bw(); \ 564 etm4x_relaxed_write64((csa), (val), (offset)); \ 565 } while (0) 566 567 568 /* ETMv4 resources */ 569 #define ETM_MAX_NR_PE 8 570 #define ETMv4_MAX_CNTR 4 571 #define ETM_MAX_SEQ_STATES 4 572 #define ETM_MAX_EXT_INP_SEL 4 573 #define ETM_MAX_EXT_INP 256 574 #define ETM_MAX_EXT_OUT 4 575 #define ETM_MAX_SINGLE_ADDR_CMP 16 576 #define ETM_MAX_ADDR_RANGE_CMP (ETM_MAX_SINGLE_ADDR_CMP / 2) 577 #define ETM_MAX_DATA_VAL_CMP 8 578 #define ETMv4_MAX_CTXID_CMP 8 579 #define ETM_MAX_VMID_CMP 8 580 #define ETM_MAX_PE_CMP 8 581 #define ETM_MAX_RES_SEL 32 582 #define ETM_MAX_SS_CMP 8 583 584 #define ETMv4_SYNC_MASK 0x1F 585 #define ETM_CYC_THRESHOLD_MASK 0xFFF 586 #define ETM_CYC_THRESHOLD_DEFAULT 0x100 587 #define ETMv4_EVENT_MASK 0xFF 588 #define ETM_CNTR_MAX_VAL 0xFFFF 589 #define ETM_TRACEID_MASK 0x3f 590 591 /* ETMv4 programming modes */ 592 #define ETM_MODE_EXCLUDE BIT(0) 593 #define ETM_MODE_LOAD BIT(1) 594 #define ETM_MODE_STORE BIT(2) 595 #define ETM_MODE_LOAD_STORE BIT(3) 596 #define ETM_MODE_BB BIT(4) 597 #define ETMv4_MODE_CYCACC BIT(5) 598 #define ETMv4_MODE_CTXID BIT(6) 599 #define ETM_MODE_VMID BIT(7) 600 #define ETM_MODE_COND(val) BMVAL(val, 8, 10) 601 #define ETMv4_MODE_TIMESTAMP BIT(11) 602 #define ETM_MODE_RETURNSTACK BIT(12) 603 #define ETM_MODE_QELEM(val) BMVAL(val, 13, 14) 604 #define ETM_MODE_DATA_TRACE_ADDR BIT(15) 605 #define ETM_MODE_DATA_TRACE_VAL BIT(16) 606 #define ETM_MODE_ISTALL BIT(17) 607 #define ETM_MODE_DSTALL BIT(18) 608 #define ETM_MODE_ATB_TRIGGER BIT(19) 609 #define ETM_MODE_LPOVERRIDE BIT(20) 610 #define ETM_MODE_ISTALL_EN BIT(21) 611 #define ETM_MODE_DSTALL_EN BIT(22) 612 #define ETM_MODE_INSTPRIO BIT(23) 613 #define ETM_MODE_NOOVERFLOW BIT(24) 614 #define ETM_MODE_TRACE_RESET BIT(25) 615 #define ETM_MODE_TRACE_ERR BIT(26) 616 #define ETM_MODE_VIEWINST_STARTSTOP BIT(27) 617 #define ETMv4_MODE_ALL (GENMASK(27, 0) | \ 618 ETM_MODE_EXCL_KERN | \ 619 ETM_MODE_EXCL_USER) 620 621 /* 622 * TRCOSLSR.OSLM advertises the OS Lock model. 623 * OSLM[2:0] = TRCOSLSR[4:3,0] 624 * 625 * 0b000 - Trace OS Lock is not implemented. 626 * 0b010 - Trace OS Lock is implemented. 627 * 0b100 - Trace OS Lock is not implemented, unit is controlled by PE OS Lock. 628 */ 629 #define ETM_OSLOCK_NI 0b000 630 #define ETM_OSLOCK_PRESENT 0b010 631 #define ETM_OSLOCK_PE 0b100 632 633 #define ETM_OSLSR_OSLM(oslsr) ((((oslsr) & GENMASK(4, 3)) >> 2) | (oslsr & 0x1)) 634 635 /* 636 * TRCDEVARCH Bit field definitions 637 * Bits[31:21] - ARCHITECT = Always Arm Ltd. 638 * * Bits[31:28] = 0x4 639 * * Bits[27:21] = 0b0111011 640 * Bit[20] - PRESENT, Indicates the presence of this register. 641 * 642 * Bit[19:16] - REVISION, Revision of the architecture. 643 * 644 * Bit[15:0] - ARCHID, Identifies this component as an ETM 645 * * Bits[15:12] - architecture version of ETM 646 * * = 4 for ETMv4 647 * * Bits[11:0] = 0xA13, architecture part number for ETM. 648 */ 649 #define ETM_DEVARCH_ARCHITECT_MASK GENMASK(31, 21) 650 #define ETM_DEVARCH_ARCHITECT_ARM ((0x4 << 28) | (0b0111011 << 21)) 651 #define ETM_DEVARCH_PRESENT BIT(20) 652 #define ETM_DEVARCH_REVISION_SHIFT 16 653 #define ETM_DEVARCH_REVISION_MASK GENMASK(19, 16) 654 #define ETM_DEVARCH_REVISION(x) \ 655 (((x) & ETM_DEVARCH_REVISION_MASK) >> ETM_DEVARCH_REVISION_SHIFT) 656 #define ETM_DEVARCH_ARCHID_MASK GENMASK(15, 0) 657 #define ETM_DEVARCH_ARCHID_ARCH_VER_SHIFT 12 658 #define ETM_DEVARCH_ARCHID_ARCH_VER_MASK GENMASK(15, 12) 659 #define ETM_DEVARCH_ARCHID_ARCH_VER(x) \ 660 (((x) & ETM_DEVARCH_ARCHID_ARCH_VER_MASK) >> ETM_DEVARCH_ARCHID_ARCH_VER_SHIFT) 661 662 #define ETM_DEVARCH_MAKE_ARCHID_ARCH_VER(ver) \ 663 (((ver) << ETM_DEVARCH_ARCHID_ARCH_VER_SHIFT) & ETM_DEVARCH_ARCHID_ARCH_VER_MASK) 664 665 #define ETM_DEVARCH_ARCHID_ARCH_PART(x) ((x) & 0xfffUL) 666 667 #define ETM_DEVARCH_MAKE_ARCHID(major) \ 668 ((ETM_DEVARCH_MAKE_ARCHID_ARCH_VER(major)) | ETM_DEVARCH_ARCHID_ARCH_PART(0xA13)) 669 670 #define ETM_DEVARCH_ARCHID_ETMv4x ETM_DEVARCH_MAKE_ARCHID(0x4) 671 #define ETM_DEVARCH_ARCHID_ETE ETM_DEVARCH_MAKE_ARCHID(0x5) 672 673 #define ETM_DEVARCH_ID_MASK \ 674 (ETM_DEVARCH_ARCHITECT_MASK | ETM_DEVARCH_ARCHID_MASK | ETM_DEVARCH_PRESENT) 675 #define ETM_DEVARCH_ETMv4x_ARCH \ 676 (ETM_DEVARCH_ARCHITECT_ARM | ETM_DEVARCH_ARCHID_ETMv4x | ETM_DEVARCH_PRESENT) 677 #define ETM_DEVARCH_ETE_ARCH \ 678 (ETM_DEVARCH_ARCHITECT_ARM | ETM_DEVARCH_ARCHID_ETE | ETM_DEVARCH_PRESENT) 679 680 #define CS_DEVTYPE_PE_TRACE 0x00000013 681 682 #define TRCSTATR_IDLE_BIT 0 683 #define TRCSTATR_PMSTABLE_BIT 1 684 #define ETM_DEFAULT_ADDR_COMP 0 685 686 #define TRCSSCSRn_PC BIT(3) 687 688 /* PowerDown Control Register bits */ 689 #define TRCPDCR_PU BIT(3) 690 691 #define TRCACATR_EXLEVEL_SHIFT 8 692 693 /* 694 * Exception level mask for Secure and Non-Secure ELs. 695 * ETM defines the bits for EL control (e.g, TRVICTLR, TRCACTRn). 696 * The Secure and Non-Secure ELs are always to gether. 697 * Non-secure EL3 is never implemented. 698 * We use the following generic mask as they appear in different 699 * registers and this can be shifted for the appropriate 700 * fields. 701 */ 702 #define ETM_EXLEVEL_S_APP BIT(0) /* Secure EL0 */ 703 #define ETM_EXLEVEL_S_OS BIT(1) /* Secure EL1 */ 704 #define ETM_EXLEVEL_S_HYP BIT(2) /* Secure EL2 */ 705 #define ETM_EXLEVEL_S_MON BIT(3) /* Secure EL3/Monitor */ 706 #define ETM_EXLEVEL_NS_APP BIT(4) /* NonSecure EL0 */ 707 #define ETM_EXLEVEL_NS_OS BIT(5) /* NonSecure EL1 */ 708 #define ETM_EXLEVEL_NS_HYP BIT(6) /* NonSecure EL2 */ 709 710 /* access level controls in TRCACATRn */ 711 #define TRCACATR_EXLEVEL_SHIFT 8 712 713 #define ETM_TRCIDR1_ARCH_MAJOR_SHIFT 8 714 #define ETM_TRCIDR1_ARCH_MAJOR_MASK (0xfU << ETM_TRCIDR1_ARCH_MAJOR_SHIFT) 715 #define ETM_TRCIDR1_ARCH_MAJOR(x) \ 716 (((x) & ETM_TRCIDR1_ARCH_MAJOR_MASK) >> ETM_TRCIDR1_ARCH_MAJOR_SHIFT) 717 #define ETM_TRCIDR1_ARCH_MINOR_SHIFT 4 718 #define ETM_TRCIDR1_ARCH_MINOR_MASK (0xfU << ETM_TRCIDR1_ARCH_MINOR_SHIFT) 719 #define ETM_TRCIDR1_ARCH_MINOR(x) \ 720 (((x) & ETM_TRCIDR1_ARCH_MINOR_MASK) >> ETM_TRCIDR1_ARCH_MINOR_SHIFT) 721 #define ETM_TRCIDR1_ARCH_SHIFT ETM_TRCIDR1_ARCH_MINOR_SHIFT 722 #define ETM_TRCIDR1_ARCH_MASK \ 723 (ETM_TRCIDR1_ARCH_MAJOR_MASK | ETM_TRCIDR1_ARCH_MINOR_MASK) 724 725 #define ETM_TRCIDR1_ARCH_ETMv4 0x4 726 727 /* 728 * Driver representation of the ETM architecture. 729 * The version of an ETM component can be detected from 730 * 731 * TRCDEVARCH - CoreSight architected register 732 * - Bits[15:12] - Major version 733 * - Bits[19:16] - Minor version 734 * 735 * We must rely only on TRCDEVARCH for the version information. Even though, 736 * TRCIDR1 also provides the architecture version, it is a "Trace" register 737 * and as such must be accessed only with Trace power domain ON. This may 738 * not be available at probe time. 739 * 740 * Now to make certain decisions easier based on the version 741 * we use an internal representation of the version in the 742 * driver, as follows : 743 * 744 * ETM_ARCH_VERSION[7:0], where : 745 * Bits[7:4] - Major version 746 * Bits[3:0] - Minro version 747 */ 748 #define ETM_ARCH_VERSION(major, minor) \ 749 ((((major) & 0xfU) << 4) | (((minor) & 0xfU))) 750 #define ETM_ARCH_MAJOR_VERSION(arch) (((arch) >> 4) & 0xfU) 751 #define ETM_ARCH_MINOR_VERSION(arch) ((arch) & 0xfU) 752 753 #define ETM_ARCH_V4 ETM_ARCH_VERSION(4, 0) 754 #define ETM_ARCH_ETE ETM_ARCH_VERSION(5, 0) 755 756 /* Interpretation of resource numbers change at ETM v4.3 architecture */ 757 #define ETM_ARCH_V4_3 ETM_ARCH_VERSION(4, 3) 758 etm_devarch_to_arch(u32 devarch)759 static inline u8 etm_devarch_to_arch(u32 devarch) 760 { 761 return ETM_ARCH_VERSION(ETM_DEVARCH_ARCHID_ARCH_VER(devarch), 762 ETM_DEVARCH_REVISION(devarch)); 763 } 764 765 enum etm_impdef_type { 766 ETM4_IMPDEF_HISI_CORE_COMMIT, 767 ETM4_IMPDEF_FEATURE_MAX, 768 }; 769 770 /** 771 * struct etmv4_config - configuration information related to an ETMv4 772 * @mode: Controls various modes supported by this ETM. 773 * @pe_sel: Controls which PE to trace. 774 * @cfg: Controls the tracing options. 775 * @eventctrl0: Controls the tracing of arbitrary events. 776 * @eventctrl1: Controls the behavior of the events that @event_ctrl0 selects. 777 * @stallctl: If functionality that prevents trace unit buffer overflows 778 * is available. 779 * @ts_ctrl: Controls the insertion of global timestamps in the 780 * trace streams. 781 * @syncfreq: Controls how often trace synchronization requests occur. 782 * the TRCCCCTLR register. 783 * @ccctlr: Sets the threshold value for cycle counting. 784 * @vinst_ctrl: Controls instruction trace filtering. 785 * @viiectlr: Set or read, the address range comparators. 786 * @vissctlr: Set, or read, the single address comparators that control the 787 * ViewInst start-stop logic. 788 * @vipcssctlr: Set, or read, which PE comparator inputs can control the 789 * ViewInst start-stop logic. 790 * @seq_idx: Sequencor index selector. 791 * @seq_ctrl: Control for the sequencer state transition control register. 792 * @seq_rst: Moves the sequencer to state 0 when a programmed event occurs. 793 * @seq_state: Set, or read the sequencer state. 794 * @cntr_idx: Counter index seletor. 795 * @cntrldvr: Sets or returns the reload count value for a counter. 796 * @cntr_ctrl: Controls the operation of a counter. 797 * @cntr_val: Sets or returns the value for a counter. 798 * @res_idx: Resource index selector. 799 * @res_ctrl: Controls the selection of the resources in the trace unit. 800 * @ss_idx: Single-shot index selector. 801 * @ss_ctrl: Controls the corresponding single-shot comparator resource. 802 * @ss_status: The status of the corresponding single-shot comparator. 803 * @ss_pe_cmp: Selects the PE comparator inputs for Single-shot control. 804 * @addr_idx: Address comparator index selector. 805 * @addr_val: Value for address comparator. 806 * @addr_acc: Address comparator access type. 807 * @addr_type: Current status of the comparator register. 808 * @ctxid_idx: Context ID index selector. 809 * @ctxid_pid: Value of the context ID comparator. 810 * @ctxid_mask0:Context ID comparator mask for comparator 0-3. 811 * @ctxid_mask1:Context ID comparator mask for comparator 4-7. 812 * @vmid_idx: VM ID index selector. 813 * @vmid_val: Value of the VM ID comparator. 814 * @vmid_mask0: VM ID comparator mask for comparator 0-3. 815 * @vmid_mask1: VM ID comparator mask for comparator 4-7. 816 * @ext_inp: External input selection. 817 * @s_ex_level: Secure ELs where tracing is supported. 818 */ 819 struct etmv4_config { 820 u32 mode; 821 u32 pe_sel; 822 u32 cfg; 823 u32 eventctrl0; 824 u32 eventctrl1; 825 u32 stall_ctrl; 826 u32 ts_ctrl; 827 u32 syncfreq; 828 u32 ccctlr; 829 u32 bb_ctrl; 830 u32 vinst_ctrl; 831 u32 viiectlr; 832 u32 vissctlr; 833 u32 vipcssctlr; 834 u8 seq_idx; 835 u32 seq_ctrl[ETM_MAX_SEQ_STATES]; 836 u32 seq_rst; 837 u32 seq_state; 838 u8 cntr_idx; 839 u32 cntrldvr[ETMv4_MAX_CNTR]; 840 u32 cntr_ctrl[ETMv4_MAX_CNTR]; 841 u32 cntr_val[ETMv4_MAX_CNTR]; 842 u8 res_idx; 843 u32 res_ctrl[ETM_MAX_RES_SEL]; 844 u8 ss_idx; 845 u32 ss_ctrl[ETM_MAX_SS_CMP]; 846 u32 ss_status[ETM_MAX_SS_CMP]; 847 u32 ss_pe_cmp[ETM_MAX_SS_CMP]; 848 u8 addr_idx; 849 u64 addr_val[ETM_MAX_SINGLE_ADDR_CMP]; 850 u64 addr_acc[ETM_MAX_SINGLE_ADDR_CMP]; 851 u8 addr_type[ETM_MAX_SINGLE_ADDR_CMP]; 852 u8 ctxid_idx; 853 u64 ctxid_pid[ETMv4_MAX_CTXID_CMP]; 854 u32 ctxid_mask0; 855 u32 ctxid_mask1; 856 u8 vmid_idx; 857 u64 vmid_val[ETM_MAX_VMID_CMP]; 858 u32 vmid_mask0; 859 u32 vmid_mask1; 860 u32 ext_inp; 861 u8 s_ex_level; 862 }; 863 864 /** 865 * struct etm4_save_state - state to be preserved when ETM is without power 866 */ 867 struct etmv4_save_state { 868 u32 trcprgctlr; 869 u32 trcprocselr; 870 u32 trcconfigr; 871 u32 trcauxctlr; 872 u32 trceventctl0r; 873 u32 trceventctl1r; 874 u32 trcstallctlr; 875 u32 trctsctlr; 876 u32 trcsyncpr; 877 u32 trcccctlr; 878 u32 trcbbctlr; 879 u32 trctraceidr; 880 u32 trcqctlr; 881 882 u32 trcvictlr; 883 u32 trcviiectlr; 884 u32 trcvissctlr; 885 u32 trcvipcssctlr; 886 887 u32 trcseqevr[ETM_MAX_SEQ_STATES]; 888 u32 trcseqrstevr; 889 u32 trcseqstr; 890 u32 trcextinselr; 891 u32 trccntrldvr[ETMv4_MAX_CNTR]; 892 u32 trccntctlr[ETMv4_MAX_CNTR]; 893 u32 trccntvr[ETMv4_MAX_CNTR]; 894 895 u32 trcrsctlr[ETM_MAX_RES_SEL]; 896 897 u32 trcssccr[ETM_MAX_SS_CMP]; 898 u32 trcsscsr[ETM_MAX_SS_CMP]; 899 u32 trcsspcicr[ETM_MAX_SS_CMP]; 900 901 u64 trcacvr[ETM_MAX_SINGLE_ADDR_CMP]; 902 u64 trcacatr[ETM_MAX_SINGLE_ADDR_CMP]; 903 u64 trccidcvr[ETMv4_MAX_CTXID_CMP]; 904 u64 trcvmidcvr[ETM_MAX_VMID_CMP]; 905 u32 trccidcctlr0; 906 u32 trccidcctlr1; 907 u32 trcvmidcctlr0; 908 u32 trcvmidcctlr1; 909 910 u32 trcclaimset; 911 912 u32 cntr_val[ETMv4_MAX_CNTR]; 913 u32 seq_state; 914 u32 vinst_ctrl; 915 u32 ss_status[ETM_MAX_SS_CMP]; 916 917 u32 trcpdcr; 918 }; 919 920 /** 921 * struct etm4_drvdata - specifics associated to an ETM component 922 * @pclk APB clock if present, otherwise NULL 923 * @base: Memory mapped base address for this component. 924 * @csdev: Component vitals needed by the framework. 925 * @spinlock: Only one at a time pls. 926 * @mode: This tracer's mode, i.e sysFS, Perf or disabled. 927 * @cpu: The cpu this component is affined to. 928 * @arch: ETM architecture version. 929 * @nr_pe: The number of processing entity available for tracing. 930 * @nr_pe_cmp: The number of processing entity comparator inputs that are 931 * available for tracing. 932 * @nr_addr_cmp:Number of pairs of address comparators available 933 * as found in ETMIDR4 0-3. 934 * @nr_cntr: Number of counters as found in ETMIDR5 bit 28-30. 935 * @nr_ext_inp: Number of external input. 936 * @numcidc: Number of contextID comparators. 937 * @numvmidc: Number of VMID comparators. 938 * @nrseqstate: The number of sequencer states that are implemented. 939 * @nr_event: Indicates how many events the trace unit support. 940 * @nr_resource:The number of resource selection pairs available for tracing. 941 * @nr_ss_cmp: Number of single-shot comparator controls that are available. 942 * @trcid: value of the current ID for this component. 943 * @trcid_size: Indicates the trace ID width. 944 * @ts_size: Global timestamp size field. 945 * @ctxid_size: Size of the context ID field to consider. 946 * @vmid_size: Size of the VM ID comparator to consider. 947 * @ccsize: Indicates the size of the cycle counter in bits. 948 * @ccitmin: minimum value that can be programmed in 949 * @s_ex_level: In secure state, indicates whether instruction tracing is 950 * supported for the corresponding Exception level. 951 * @ns_ex_level:In non-secure state, indicates whether instruction tracing is 952 * supported for the corresponding Exception level. 953 * @sticky_enable: true if ETM base configuration has been done. 954 * @boot_enable:True if we should start tracing at boot time. 955 * @os_unlock: True if access to management registers is allowed. 956 * @instrp0: Tracing of load and store instructions 957 * as P0 elements is supported. 958 * @q_filt: Q element filtering support, if Q elements are supported. 959 * @trcbb: Indicates if the trace unit supports branch broadcast tracing. 960 * @trccond: If the trace unit supports conditional 961 * instruction tracing. 962 * @retstack: Indicates if the implementation supports a return stack. 963 * @trccci: Indicates if the trace unit supports cycle counting 964 * for instruction. 965 * @q_support: Q element support characteristics. 966 * @trc_error: Whether a trace unit can trace a system 967 * error exception. 968 * @syncpr: Indicates if an implementation has a fixed 969 * synchronization period. 970 * @stall_ctrl: Enables trace unit functionality that prevents trace 971 * unit buffer overflows. 972 * @sysstall: Does the system support stall control of the PE? 973 * @nooverflow: Indicate if overflow prevention is supported. 974 * @atbtrig: If the implementation can support ATB triggers 975 * @lpoverride: If the implementation can support low-power state over. 976 * @trfcr: If the CPU supports FEAT_TRF, value of the TRFCR_ELx that 977 * allows tracing at all ELs. We don't want to compute this 978 * at runtime, due to the additional setting of TRFCR_CX when 979 * in EL2. Otherwise, 0. 980 * @config: structure holding configuration parameters. 981 * @save_trfcr: Saved TRFCR_EL1 register during a CPU PM event. 982 * @save_state: State to be preserved across power loss 983 * @state_needs_restore: True when there is context to restore after PM exit 984 * @skip_power_up: Indicates if an implementation can skip powering up 985 * the trace unit. 986 * @arch_features: Bitmap of arch features of etmv4 devices. 987 */ 988 struct etmv4_drvdata { 989 struct clk *pclk; 990 void __iomem *base; 991 struct coresight_device *csdev; 992 spinlock_t spinlock; 993 int cpu; 994 u8 arch; 995 u8 nr_pe; 996 u8 nr_pe_cmp; 997 u8 nr_addr_cmp; 998 u8 nr_cntr; 999 u8 nr_ext_inp; 1000 u8 numcidc; 1001 u8 numvmidc; 1002 u8 nrseqstate; 1003 u8 nr_event; 1004 u8 nr_resource; 1005 u8 nr_ss_cmp; 1006 u8 trcid; 1007 u8 trcid_size; 1008 u8 ts_size; 1009 u8 ctxid_size; 1010 u8 vmid_size; 1011 u8 ccsize; 1012 u16 ccitmin; 1013 u8 s_ex_level; 1014 u8 ns_ex_level; 1015 u8 q_support; 1016 u8 os_lock_model; 1017 bool sticky_enable; 1018 bool boot_enable; 1019 bool os_unlock; 1020 bool instrp0; 1021 bool q_filt; 1022 bool trcbb; 1023 bool trccond; 1024 bool retstack; 1025 bool trccci; 1026 bool trc_error; 1027 bool syncpr; 1028 bool stallctl; 1029 bool sysstall; 1030 bool nooverflow; 1031 bool atbtrig; 1032 bool lpoverride; 1033 u64 trfcr; 1034 struct etmv4_config config; 1035 u64 save_trfcr; 1036 struct etmv4_save_state *save_state; 1037 bool state_needs_restore; 1038 bool skip_power_up; 1039 DECLARE_BITMAP(arch_features, ETM4_IMPDEF_FEATURE_MAX); 1040 }; 1041 1042 /* Address comparator access types */ 1043 enum etm_addr_acctype { 1044 TRCACATRn_TYPE_ADDR, 1045 TRCACATRn_TYPE_DATA_LOAD_ADDR, 1046 TRCACATRn_TYPE_DATA_STORE_ADDR, 1047 TRCACATRn_TYPE_DATA_LOAD_STORE_ADDR, 1048 }; 1049 1050 /* Address comparator context types */ 1051 enum etm_addr_ctxtype { 1052 ETM_CTX_NONE, 1053 ETM_CTX_CTXID, 1054 ETM_CTX_VMID, 1055 ETM_CTX_CTXID_VMID, 1056 }; 1057 1058 extern const struct attribute_group *coresight_etmv4_groups[]; 1059 void etm4_config_trace_mode(struct etmv4_config *config); 1060 1061 u64 etm4x_sysreg_read(u32 offset, bool _relaxed, bool _64bit); 1062 void etm4x_sysreg_write(u64 val, u32 offset, bool _relaxed, bool _64bit); 1063 etm4x_is_ete(struct etmv4_drvdata * drvdata)1064 static inline bool etm4x_is_ete(struct etmv4_drvdata *drvdata) 1065 { 1066 return drvdata->arch >= ETM_ARCH_ETE; 1067 } 1068 1069 int etm4_read_alloc_trace_id(struct etmv4_drvdata *drvdata); 1070 void etm4_release_trace_id(struct etmv4_drvdata *drvdata); 1071 #endif 1072