1 // SPDX-License-Identifier: GPL-2.0 2 // Copyright (C) 2016-2020 Arm Limited 3 // CMN-600 Coherent Mesh Network PMU driver 4 5 #include <linux/acpi.h> 6 #include <linux/bitfield.h> 7 #include <linux/bitops.h> 8 #include <linux/debugfs.h> 9 #include <linux/interrupt.h> 10 #include <linux/io.h> 11 #include <linux/io-64-nonatomic-lo-hi.h> 12 #include <linux/kernel.h> 13 #include <linux/list.h> 14 #include <linux/module.h> 15 #include <linux/of.h> 16 #include <linux/perf_event.h> 17 #include <linux/platform_device.h> 18 #include <linux/slab.h> 19 #include <linux/sort.h> 20 21 /* Common register stuff */ 22 #define CMN_NODE_INFO 0x0000 23 #define CMN_NI_NODE_TYPE GENMASK_ULL(15, 0) 24 #define CMN_NI_NODE_ID GENMASK_ULL(31, 16) 25 #define CMN_NI_LOGICAL_ID GENMASK_ULL(47, 32) 26 27 #define CMN_NODEID_DEVID(reg) ((reg) & 3) 28 #define CMN_NODEID_EXT_DEVID(reg) ((reg) & 1) 29 #define CMN_NODEID_PID(reg) (((reg) >> 2) & 1) 30 #define CMN_NODEID_EXT_PID(reg) (((reg) >> 1) & 3) 31 #define CMN_NODEID_1x1_PID(reg) (((reg) >> 2) & 7) 32 #define CMN_NODEID_X(reg, bits) ((reg) >> (3 + (bits))) 33 #define CMN_NODEID_Y(reg, bits) (((reg) >> 3) & ((1U << (bits)) - 1)) 34 35 #define CMN_CHILD_INFO 0x0080 36 #define CMN_CI_CHILD_COUNT GENMASK_ULL(15, 0) 37 #define CMN_CI_CHILD_PTR_OFFSET GENMASK_ULL(31, 16) 38 39 #define CMN_CHILD_NODE_ADDR GENMASK(29, 0) 40 #define CMN_CHILD_NODE_EXTERNAL BIT(31) 41 42 #define CMN_MAX_DIMENSION 12 43 #define CMN_MAX_XPS (CMN_MAX_DIMENSION * CMN_MAX_DIMENSION) 44 #define CMN_MAX_DTMS (CMN_MAX_XPS + (CMN_MAX_DIMENSION - 1) * 4) 45 46 /* The CFG node has various info besides the discovery tree */ 47 #define CMN_CFGM_PERIPH_ID_01 0x0008 48 #define CMN_CFGM_PID0_PART_0 GENMASK_ULL(7, 0) 49 #define CMN_CFGM_PID1_PART_1 GENMASK_ULL(35, 32) 50 #define CMN_CFGM_PERIPH_ID_23 0x0010 51 #define CMN_CFGM_PID2_REVISION GENMASK_ULL(7, 4) 52 53 #define CMN_CFGM_INFO_GLOBAL 0x900 54 #define CMN_INFO_MULTIPLE_DTM_EN BIT_ULL(63) 55 #define CMN_INFO_RSP_VC_NUM GENMASK_ULL(53, 52) 56 #define CMN_INFO_DAT_VC_NUM GENMASK_ULL(51, 50) 57 58 #define CMN_CFGM_INFO_GLOBAL_1 0x908 59 #define CMN_INFO_SNP_VC_NUM GENMASK_ULL(3, 2) 60 #define CMN_INFO_REQ_VC_NUM GENMASK_ULL(1, 0) 61 62 /* XPs also have some local topology info which has uses too */ 63 #define CMN_MXP__CONNECT_INFO(p) (0x0008 + 8 * (p)) 64 #define CMN__CONNECT_INFO_DEVICE_TYPE GENMASK_ULL(4, 0) 65 66 #define CMN_MAX_PORTS 6 67 #define CI700_CONNECT_INFO_P2_5_OFFSET 0x10 68 69 /* PMU registers occupy the 3rd 4KB page of each node's region */ 70 #define CMN_PMU_OFFSET 0x2000 71 72 /* For most nodes, this is all there is */ 73 #define CMN_PMU_EVENT_SEL 0x000 74 #define CMN__PMU_CBUSY_SNTHROTTLE_SEL GENMASK_ULL(44, 42) 75 #define CMN__PMU_SN_HOME_SEL GENMASK_ULL(40, 39) 76 #define CMN__PMU_HBT_LBT_SEL GENMASK_ULL(38, 37) 77 #define CMN__PMU_CLASS_OCCUP_ID GENMASK_ULL(36, 35) 78 /* Technically this is 4 bits wide on DNs, but we only use 2 there anyway */ 79 #define CMN__PMU_OCCUP1_ID GENMASK_ULL(34, 32) 80 81 /* HN-Ps are weird... */ 82 #define CMN_HNP_PMU_EVENT_SEL 0x008 83 84 /* DTMs live in the PMU space of XP registers */ 85 #define CMN_DTM_WPn(n) (0x1A0 + (n) * 0x18) 86 #define CMN_DTM_WPn_CONFIG(n) (CMN_DTM_WPn(n) + 0x00) 87 #define CMN_DTM_WPn_CONFIG_WP_CHN_NUM GENMASK_ULL(20, 19) 88 #define CMN_DTM_WPn_CONFIG_WP_DEV_SEL2 GENMASK_ULL(18, 17) 89 #define CMN_DTM_WPn_CONFIG_WP_COMBINE BIT(9) 90 #define CMN_DTM_WPn_CONFIG_WP_EXCLUSIVE BIT(8) 91 #define CMN600_WPn_CONFIG_WP_COMBINE BIT(6) 92 #define CMN600_WPn_CONFIG_WP_EXCLUSIVE BIT(5) 93 #define CMN_DTM_WPn_CONFIG_WP_GRP GENMASK_ULL(5, 4) 94 #define CMN_DTM_WPn_CONFIG_WP_CHN_SEL GENMASK_ULL(3, 1) 95 #define CMN_DTM_WPn_CONFIG_WP_DEV_SEL BIT(0) 96 #define CMN_DTM_WPn_VAL(n) (CMN_DTM_WPn(n) + 0x08) 97 #define CMN_DTM_WPn_MASK(n) (CMN_DTM_WPn(n) + 0x10) 98 99 #define CMN_DTM_PMU_CONFIG 0x210 100 #define CMN__PMEVCNT0_INPUT_SEL GENMASK_ULL(37, 32) 101 #define CMN__PMEVCNT0_INPUT_SEL_WP 0x00 102 #define CMN__PMEVCNT0_INPUT_SEL_XP 0x04 103 #define CMN__PMEVCNT0_INPUT_SEL_DEV 0x10 104 #define CMN__PMEVCNT0_GLOBAL_NUM GENMASK_ULL(18, 16) 105 #define CMN__PMEVCNTn_GLOBAL_NUM_SHIFT(n) ((n) * 4) 106 #define CMN__PMEVCNT_PAIRED(n) BIT(4 + (n)) 107 #define CMN__PMEVCNT23_COMBINED BIT(2) 108 #define CMN__PMEVCNT01_COMBINED BIT(1) 109 #define CMN_DTM_PMU_CONFIG_PMU_EN BIT(0) 110 111 #define CMN_DTM_PMEVCNT 0x220 112 113 #define CMN_DTM_PMEVCNTSR 0x240 114 115 #define CMN_DTM_UNIT_INFO 0x0910 116 117 #define CMN_DTM_NUM_COUNTERS 4 118 /* Want more local counters? Why not replicate the whole DTM! Ugh... */ 119 #define CMN_DTM_OFFSET(n) ((n) * 0x200) 120 121 /* The DTC node is where the magic happens */ 122 #define CMN_DT_DTC_CTL 0x0a00 123 #define CMN_DT_DTC_CTL_DT_EN BIT(0) 124 125 /* DTC counters are paired in 64-bit registers on a 16-byte stride. Yuck */ 126 #define _CMN_DT_CNT_REG(n) ((((n) / 2) * 4 + (n) % 2) * 4) 127 #define CMN_DT_PMEVCNT(n) (CMN_PMU_OFFSET + _CMN_DT_CNT_REG(n)) 128 #define CMN_DT_PMCCNTR (CMN_PMU_OFFSET + 0x40) 129 130 #define CMN_DT_PMEVCNTSR(n) (CMN_PMU_OFFSET + 0x50 + _CMN_DT_CNT_REG(n)) 131 #define CMN_DT_PMCCNTRSR (CMN_PMU_OFFSET + 0x90) 132 133 #define CMN_DT_PMCR (CMN_PMU_OFFSET + 0x100) 134 #define CMN_DT_PMCR_PMU_EN BIT(0) 135 #define CMN_DT_PMCR_CNTR_RST BIT(5) 136 #define CMN_DT_PMCR_OVFL_INTR_EN BIT(6) 137 138 #define CMN_DT_PMOVSR (CMN_PMU_OFFSET + 0x118) 139 #define CMN_DT_PMOVSR_CLR (CMN_PMU_OFFSET + 0x120) 140 141 #define CMN_DT_PMSSR (CMN_PMU_OFFSET + 0x128) 142 #define CMN_DT_PMSSR_SS_STATUS(n) BIT(n) 143 144 #define CMN_DT_PMSRR (CMN_PMU_OFFSET + 0x130) 145 #define CMN_DT_PMSRR_SS_REQ BIT(0) 146 147 #define CMN_DT_NUM_COUNTERS 8 148 #define CMN_MAX_DTCS 4 149 150 /* 151 * Even in the worst case a DTC counter can't wrap in fewer than 2^42 cycles, 152 * so throwing away one bit to make overflow handling easy is no big deal. 153 */ 154 #define CMN_COUNTER_INIT 0x80000000 155 /* Similarly for the 40-bit cycle counter */ 156 #define CMN_CC_INIT 0x8000000000ULL 157 158 159 /* Event attributes */ 160 #define CMN_CONFIG_TYPE GENMASK_ULL(15, 0) 161 #define CMN_CONFIG_EVENTID GENMASK_ULL(26, 16) 162 #define CMN_CONFIG_OCCUPID GENMASK_ULL(30, 27) 163 #define CMN_CONFIG_BYNODEID BIT_ULL(31) 164 #define CMN_CONFIG_NODEID GENMASK_ULL(47, 32) 165 166 #define CMN_EVENT_TYPE(event) FIELD_GET(CMN_CONFIG_TYPE, (event)->attr.config) 167 #define CMN_EVENT_EVENTID(event) FIELD_GET(CMN_CONFIG_EVENTID, (event)->attr.config) 168 #define CMN_EVENT_OCCUPID(event) FIELD_GET(CMN_CONFIG_OCCUPID, (event)->attr.config) 169 #define CMN_EVENT_BYNODEID(event) FIELD_GET(CMN_CONFIG_BYNODEID, (event)->attr.config) 170 #define CMN_EVENT_NODEID(event) FIELD_GET(CMN_CONFIG_NODEID, (event)->attr.config) 171 172 #define CMN_CONFIG_WP_COMBINE GENMASK_ULL(30, 27) 173 #define CMN_CONFIG_WP_DEV_SEL GENMASK_ULL(50, 48) 174 #define CMN_CONFIG_WP_CHN_SEL GENMASK_ULL(55, 51) 175 /* Note that we don't yet support the tertiary match group on newer IPs */ 176 #define CMN_CONFIG_WP_GRP BIT_ULL(56) 177 #define CMN_CONFIG_WP_EXCLUSIVE BIT_ULL(57) 178 #define CMN_CONFIG1_WP_VAL GENMASK_ULL(63, 0) 179 #define CMN_CONFIG2_WP_MASK GENMASK_ULL(63, 0) 180 181 #define CMN_EVENT_WP_COMBINE(event) FIELD_GET(CMN_CONFIG_WP_COMBINE, (event)->attr.config) 182 #define CMN_EVENT_WP_DEV_SEL(event) FIELD_GET(CMN_CONFIG_WP_DEV_SEL, (event)->attr.config) 183 #define CMN_EVENT_WP_CHN_SEL(event) FIELD_GET(CMN_CONFIG_WP_CHN_SEL, (event)->attr.config) 184 #define CMN_EVENT_WP_GRP(event) FIELD_GET(CMN_CONFIG_WP_GRP, (event)->attr.config) 185 #define CMN_EVENT_WP_EXCLUSIVE(event) FIELD_GET(CMN_CONFIG_WP_EXCLUSIVE, (event)->attr.config) 186 #define CMN_EVENT_WP_VAL(event) FIELD_GET(CMN_CONFIG1_WP_VAL, (event)->attr.config1) 187 #define CMN_EVENT_WP_MASK(event) FIELD_GET(CMN_CONFIG2_WP_MASK, (event)->attr.config2) 188 189 /* Made-up event IDs for watchpoint direction */ 190 #define CMN_WP_UP 0 191 #define CMN_WP_DOWN 2 192 193 194 /* Internal values for encoding event support */ 195 enum cmn_model { 196 CMN600 = 1, 197 CMN650 = 2, 198 CMN700 = 4, 199 CI700 = 8, 200 /* ...and then we can use bitmap tricks for commonality */ 201 CMN_ANY = -1, 202 NOT_CMN600 = -2, 203 CMN_650ON = CMN650 | CMN700, 204 }; 205 206 /* Actual part numbers and revision IDs defined by the hardware */ 207 enum cmn_part { 208 PART_CMN600 = 0x434, 209 PART_CMN650 = 0x436, 210 PART_CMN700 = 0x43c, 211 PART_CI700 = 0x43a, 212 }; 213 214 /* CMN-600 r0px shouldn't exist in silicon, thankfully */ 215 enum cmn_revision { 216 REV_CMN600_R1P0, 217 REV_CMN600_R1P1, 218 REV_CMN600_R1P2, 219 REV_CMN600_R1P3, 220 REV_CMN600_R2P0, 221 REV_CMN600_R3P0, 222 REV_CMN600_R3P1, 223 REV_CMN650_R0P0 = 0, 224 REV_CMN650_R1P0, 225 REV_CMN650_R1P1, 226 REV_CMN650_R2P0, 227 REV_CMN650_R1P2, 228 REV_CMN700_R0P0 = 0, 229 REV_CMN700_R1P0, 230 REV_CMN700_R2P0, 231 REV_CMN700_R3P0, 232 REV_CI700_R0P0 = 0, 233 REV_CI700_R1P0, 234 REV_CI700_R2P0, 235 }; 236 237 enum cmn_node_type { 238 CMN_TYPE_INVALID, 239 CMN_TYPE_DVM, 240 CMN_TYPE_CFG, 241 CMN_TYPE_DTC, 242 CMN_TYPE_HNI, 243 CMN_TYPE_HNF, 244 CMN_TYPE_XP, 245 CMN_TYPE_SBSX, 246 CMN_TYPE_MPAM_S, 247 CMN_TYPE_MPAM_NS, 248 CMN_TYPE_RNI, 249 CMN_TYPE_RND = 0xd, 250 CMN_TYPE_RNSAM = 0xf, 251 CMN_TYPE_MTSX, 252 CMN_TYPE_HNP, 253 CMN_TYPE_CXRA = 0x100, 254 CMN_TYPE_CXHA, 255 CMN_TYPE_CXLA, 256 CMN_TYPE_CCRA, 257 CMN_TYPE_CCHA, 258 CMN_TYPE_CCLA, 259 CMN_TYPE_CCLA_RNI, 260 CMN_TYPE_HNS = 0x200, 261 CMN_TYPE_HNS_MPAM_S, 262 CMN_TYPE_HNS_MPAM_NS, 263 /* Not a real node type */ 264 CMN_TYPE_WP = 0x7770 265 }; 266 267 enum cmn_filter_select { 268 SEL_NONE = -1, 269 SEL_OCCUP1ID, 270 SEL_CLASS_OCCUP_ID, 271 SEL_CBUSY_SNTHROTTLE_SEL, 272 SEL_HBT_LBT_SEL, 273 SEL_SN_HOME_SEL, 274 SEL_MAX 275 }; 276 277 struct arm_cmn_node { 278 void __iomem *pmu_base; 279 u16 id, logid; 280 enum cmn_node_type type; 281 282 int dtm; 283 union { 284 /* DN/HN-F/CXHA */ 285 struct { 286 u8 val : 4; 287 u8 count : 4; 288 } occupid[SEL_MAX]; 289 /* XP */ 290 u8 dtc; 291 }; 292 union { 293 u8 event[4]; 294 __le32 event_sel; 295 u16 event_w[4]; 296 __le64 event_sel_w; 297 }; 298 }; 299 300 struct arm_cmn_dtm { 301 void __iomem *base; 302 u32 pmu_config_low; 303 union { 304 u8 input_sel[4]; 305 __le32 pmu_config_high; 306 }; 307 s8 wp_event[4]; 308 }; 309 310 struct arm_cmn_dtc { 311 void __iomem *base; 312 int irq; 313 int irq_friend; 314 bool cc_active; 315 316 struct perf_event *counters[CMN_DT_NUM_COUNTERS]; 317 struct perf_event *cycles; 318 }; 319 320 #define CMN_STATE_DISABLED BIT(0) 321 #define CMN_STATE_TXN BIT(1) 322 323 struct arm_cmn { 324 struct device *dev; 325 void __iomem *base; 326 unsigned int state; 327 328 enum cmn_revision rev; 329 enum cmn_part part; 330 u8 mesh_x; 331 u8 mesh_y; 332 u16 num_xps; 333 u16 num_dns; 334 bool multi_dtm; 335 u8 ports_used; 336 struct { 337 unsigned int rsp_vc_num : 2; 338 unsigned int dat_vc_num : 2; 339 unsigned int snp_vc_num : 2; 340 unsigned int req_vc_num : 2; 341 }; 342 343 struct arm_cmn_node *xps; 344 struct arm_cmn_node *dns; 345 346 struct arm_cmn_dtm *dtms; 347 struct arm_cmn_dtc *dtc; 348 unsigned int num_dtcs; 349 350 int cpu; 351 struct hlist_node cpuhp_node; 352 353 struct pmu pmu; 354 struct dentry *debug; 355 }; 356 357 #define to_cmn(p) container_of(p, struct arm_cmn, pmu) 358 359 static int arm_cmn_hp_state; 360 361 struct arm_cmn_nodeid { 362 u8 x; 363 u8 y; 364 u8 port; 365 u8 dev; 366 }; 367 368 static int arm_cmn_xyidbits(const struct arm_cmn *cmn) 369 { 370 return fls((cmn->mesh_x - 1) | (cmn->mesh_y - 1) | 2); 371 } 372 373 static struct arm_cmn_nodeid arm_cmn_nid(const struct arm_cmn *cmn, u16 id) 374 { 375 struct arm_cmn_nodeid nid; 376 377 if (cmn->num_xps == 1) { 378 nid.x = 0; 379 nid.y = 0; 380 nid.port = CMN_NODEID_1x1_PID(id); 381 nid.dev = CMN_NODEID_DEVID(id); 382 } else { 383 int bits = arm_cmn_xyidbits(cmn); 384 385 nid.x = CMN_NODEID_X(id, bits); 386 nid.y = CMN_NODEID_Y(id, bits); 387 if (cmn->ports_used & 0xc) { 388 nid.port = CMN_NODEID_EXT_PID(id); 389 nid.dev = CMN_NODEID_EXT_DEVID(id); 390 } else { 391 nid.port = CMN_NODEID_PID(id); 392 nid.dev = CMN_NODEID_DEVID(id); 393 } 394 } 395 return nid; 396 } 397 398 static struct arm_cmn_node *arm_cmn_node_to_xp(const struct arm_cmn *cmn, 399 const struct arm_cmn_node *dn) 400 { 401 struct arm_cmn_nodeid nid = arm_cmn_nid(cmn, dn->id); 402 int xp_idx = cmn->mesh_x * nid.y + nid.x; 403 404 return cmn->xps + xp_idx; 405 } 406 static struct arm_cmn_node *arm_cmn_node(const struct arm_cmn *cmn, 407 enum cmn_node_type type) 408 { 409 struct arm_cmn_node *dn; 410 411 for (dn = cmn->dns; dn->type; dn++) 412 if (dn->type == type) 413 return dn; 414 return NULL; 415 } 416 417 static enum cmn_model arm_cmn_model(const struct arm_cmn *cmn) 418 { 419 switch (cmn->part) { 420 case PART_CMN600: 421 return CMN600; 422 case PART_CMN650: 423 return CMN650; 424 case PART_CMN700: 425 return CMN700; 426 case PART_CI700: 427 return CI700; 428 default: 429 return 0; 430 }; 431 } 432 433 static u32 arm_cmn_device_connect_info(const struct arm_cmn *cmn, 434 const struct arm_cmn_node *xp, int port) 435 { 436 int offset = CMN_MXP__CONNECT_INFO(port); 437 438 if (port >= 2) { 439 if (cmn->part == PART_CMN600 || cmn->part == PART_CMN650) 440 return 0; 441 /* 442 * CI-700 may have extra ports, but still has the 443 * mesh_port_connect_info registers in the way. 444 */ 445 if (cmn->part == PART_CI700) 446 offset += CI700_CONNECT_INFO_P2_5_OFFSET; 447 } 448 449 return readl_relaxed(xp->pmu_base - CMN_PMU_OFFSET + offset); 450 } 451 452 static struct dentry *arm_cmn_debugfs; 453 454 #ifdef CONFIG_DEBUG_FS 455 static const char *arm_cmn_device_type(u8 type) 456 { 457 switch(FIELD_GET(CMN__CONNECT_INFO_DEVICE_TYPE, type)) { 458 case 0x00: return " |"; 459 case 0x01: return " RN-I |"; 460 case 0x02: return " RN-D |"; 461 case 0x04: return " RN-F_B |"; 462 case 0x05: return "RN-F_B_E|"; 463 case 0x06: return " RN-F_A |"; 464 case 0x07: return "RN-F_A_E|"; 465 case 0x08: return " HN-T |"; 466 case 0x09: return " HN-I |"; 467 case 0x0a: return " HN-D |"; 468 case 0x0b: return " HN-P |"; 469 case 0x0c: return " SN-F |"; 470 case 0x0d: return " SBSX |"; 471 case 0x0e: return " HN-F |"; 472 case 0x0f: return " SN-F_E |"; 473 case 0x10: return " SN-F_D |"; 474 case 0x11: return " CXHA |"; 475 case 0x12: return " CXRA |"; 476 case 0x13: return " CXRH |"; 477 case 0x14: return " RN-F_D |"; 478 case 0x15: return "RN-F_D_E|"; 479 case 0x16: return " RN-F_C |"; 480 case 0x17: return "RN-F_C_E|"; 481 case 0x18: return " RN-F_E |"; 482 case 0x19: return "RN-F_E_E|"; 483 case 0x1c: return " MTSX |"; 484 case 0x1d: return " HN-V |"; 485 case 0x1e: return " CCG |"; 486 default: return " ???? |"; 487 } 488 } 489 490 static void arm_cmn_show_logid(struct seq_file *s, int x, int y, int p, int d) 491 { 492 struct arm_cmn *cmn = s->private; 493 struct arm_cmn_node *dn; 494 495 for (dn = cmn->dns; dn->type; dn++) { 496 struct arm_cmn_nodeid nid = arm_cmn_nid(cmn, dn->id); 497 498 if (dn->type == CMN_TYPE_XP) 499 continue; 500 /* Ignore the extra components that will overlap on some ports */ 501 if (dn->type < CMN_TYPE_HNI) 502 continue; 503 504 if (nid.x != x || nid.y != y || nid.port != p || nid.dev != d) 505 continue; 506 507 seq_printf(s, " #%-2d |", dn->logid); 508 return; 509 } 510 seq_puts(s, " |"); 511 } 512 513 static int arm_cmn_map_show(struct seq_file *s, void *data) 514 { 515 struct arm_cmn *cmn = s->private; 516 int x, y, p, pmax = fls(cmn->ports_used); 517 518 seq_puts(s, " X"); 519 for (x = 0; x < cmn->mesh_x; x++) 520 seq_printf(s, " %d ", x); 521 seq_puts(s, "\nY P D+"); 522 y = cmn->mesh_y; 523 while (y--) { 524 int xp_base = cmn->mesh_x * y; 525 u8 port[CMN_MAX_PORTS][CMN_MAX_DIMENSION]; 526 527 for (x = 0; x < cmn->mesh_x; x++) 528 seq_puts(s, "--------+"); 529 530 seq_printf(s, "\n%d |", y); 531 for (x = 0; x < cmn->mesh_x; x++) { 532 struct arm_cmn_node *xp = cmn->xps + xp_base + x; 533 534 for (p = 0; p < CMN_MAX_PORTS; p++) 535 port[p][x] = arm_cmn_device_connect_info(cmn, xp, p); 536 seq_printf(s, " XP #%-2d |", xp_base + x); 537 } 538 539 seq_puts(s, "\n |"); 540 for (x = 0; x < cmn->mesh_x; x++) { 541 u8 dtc = cmn->xps[xp_base + x].dtc; 542 543 if (dtc & (dtc - 1)) 544 seq_puts(s, " DTC ?? |"); 545 else 546 seq_printf(s, " DTC %ld |", __ffs(dtc)); 547 } 548 seq_puts(s, "\n |"); 549 for (x = 0; x < cmn->mesh_x; x++) 550 seq_puts(s, "........|"); 551 552 for (p = 0; p < pmax; p++) { 553 seq_printf(s, "\n %d |", p); 554 for (x = 0; x < cmn->mesh_x; x++) 555 seq_puts(s, arm_cmn_device_type(port[p][x])); 556 seq_puts(s, "\n 0|"); 557 for (x = 0; x < cmn->mesh_x; x++) 558 arm_cmn_show_logid(s, x, y, p, 0); 559 seq_puts(s, "\n 1|"); 560 for (x = 0; x < cmn->mesh_x; x++) 561 arm_cmn_show_logid(s, x, y, p, 1); 562 } 563 seq_puts(s, "\n-----+"); 564 } 565 for (x = 0; x < cmn->mesh_x; x++) 566 seq_puts(s, "--------+"); 567 seq_puts(s, "\n"); 568 return 0; 569 } 570 DEFINE_SHOW_ATTRIBUTE(arm_cmn_map); 571 572 static void arm_cmn_debugfs_init(struct arm_cmn *cmn, int id) 573 { 574 const char *name = "map"; 575 576 if (id > 0) 577 name = devm_kasprintf(cmn->dev, GFP_KERNEL, "map_%d", id); 578 if (!name) 579 return; 580 581 cmn->debug = debugfs_create_file(name, 0444, arm_cmn_debugfs, cmn, &arm_cmn_map_fops); 582 } 583 #else 584 static void arm_cmn_debugfs_init(struct arm_cmn *cmn, int id) {} 585 #endif 586 587 struct arm_cmn_hw_event { 588 struct arm_cmn_node *dn; 589 u64 dtm_idx[4]; 590 unsigned int dtc_idx; 591 u8 dtcs_used; 592 u8 num_dns; 593 u8 dtm_offset; 594 bool wide_sel; 595 enum cmn_filter_select filter_sel; 596 }; 597 598 #define for_each_hw_dn(hw, dn, i) \ 599 for (i = 0, dn = hw->dn; i < hw->num_dns; i++, dn++) 600 601 static struct arm_cmn_hw_event *to_cmn_hw(struct perf_event *event) 602 { 603 BUILD_BUG_ON(sizeof(struct arm_cmn_hw_event) > offsetof(struct hw_perf_event, target)); 604 return (struct arm_cmn_hw_event *)&event->hw; 605 } 606 607 static void arm_cmn_set_index(u64 x[], unsigned int pos, unsigned int val) 608 { 609 x[pos / 32] |= (u64)val << ((pos % 32) * 2); 610 } 611 612 static unsigned int arm_cmn_get_index(u64 x[], unsigned int pos) 613 { 614 return (x[pos / 32] >> ((pos % 32) * 2)) & 3; 615 } 616 617 struct arm_cmn_event_attr { 618 struct device_attribute attr; 619 enum cmn_model model; 620 enum cmn_node_type type; 621 enum cmn_filter_select fsel; 622 u16 eventid; 623 u8 occupid; 624 }; 625 626 struct arm_cmn_format_attr { 627 struct device_attribute attr; 628 u64 field; 629 int config; 630 }; 631 632 #define _CMN_EVENT_ATTR(_model, _name, _type, _eventid, _occupid, _fsel)\ 633 (&((struct arm_cmn_event_attr[]) {{ \ 634 .attr = __ATTR(_name, 0444, arm_cmn_event_show, NULL), \ 635 .model = _model, \ 636 .type = _type, \ 637 .eventid = _eventid, \ 638 .occupid = _occupid, \ 639 .fsel = _fsel, \ 640 }})[0].attr.attr) 641 #define CMN_EVENT_ATTR(_model, _name, _type, _eventid) \ 642 _CMN_EVENT_ATTR(_model, _name, _type, _eventid, 0, SEL_NONE) 643 644 static ssize_t arm_cmn_event_show(struct device *dev, 645 struct device_attribute *attr, char *buf) 646 { 647 struct arm_cmn_event_attr *eattr; 648 649 eattr = container_of(attr, typeof(*eattr), attr); 650 651 if (eattr->type == CMN_TYPE_DTC) 652 return sysfs_emit(buf, "type=0x%x\n", eattr->type); 653 654 if (eattr->type == CMN_TYPE_WP) 655 return sysfs_emit(buf, 656 "type=0x%x,eventid=0x%x,wp_dev_sel=?,wp_chn_sel=?,wp_grp=?,wp_val=?,wp_mask=?\n", 657 eattr->type, eattr->eventid); 658 659 if (eattr->fsel > SEL_NONE) 660 return sysfs_emit(buf, "type=0x%x,eventid=0x%x,occupid=0x%x\n", 661 eattr->type, eattr->eventid, eattr->occupid); 662 663 return sysfs_emit(buf, "type=0x%x,eventid=0x%x\n", eattr->type, 664 eattr->eventid); 665 } 666 667 static umode_t arm_cmn_event_attr_is_visible(struct kobject *kobj, 668 struct attribute *attr, 669 int unused) 670 { 671 struct device *dev = kobj_to_dev(kobj); 672 struct arm_cmn *cmn = to_cmn(dev_get_drvdata(dev)); 673 struct arm_cmn_event_attr *eattr; 674 enum cmn_node_type type; 675 u16 eventid; 676 677 eattr = container_of(attr, typeof(*eattr), attr.attr); 678 679 if (!(eattr->model & arm_cmn_model(cmn))) 680 return 0; 681 682 type = eattr->type; 683 eventid = eattr->eventid; 684 685 /* Watchpoints aren't nodes, so avoid confusion */ 686 if (type == CMN_TYPE_WP) 687 return attr->mode; 688 689 /* Hide XP events for unused interfaces/channels */ 690 if (type == CMN_TYPE_XP) { 691 unsigned int intf = (eventid >> 2) & 7; 692 unsigned int chan = eventid >> 5; 693 694 if ((intf & 4) && !(cmn->ports_used & BIT(intf & 3))) 695 return 0; 696 697 if (chan == 4 && cmn->part == PART_CMN600) 698 return 0; 699 700 if ((chan == 5 && cmn->rsp_vc_num < 2) || 701 (chan == 6 && cmn->dat_vc_num < 2) || 702 (chan == 7 && cmn->snp_vc_num < 2) || 703 (chan == 8 && cmn->req_vc_num < 2)) 704 return 0; 705 } 706 707 /* Revision-specific differences */ 708 if (cmn->part == PART_CMN600) { 709 if (cmn->rev < REV_CMN600_R1P3) { 710 if (type == CMN_TYPE_CXRA && eventid > 0x10) 711 return 0; 712 } 713 if (cmn->rev < REV_CMN600_R1P2) { 714 if (type == CMN_TYPE_HNF && eventid == 0x1b) 715 return 0; 716 if (type == CMN_TYPE_CXRA || type == CMN_TYPE_CXHA) 717 return 0; 718 } 719 } else if (cmn->part == PART_CMN650) { 720 if (cmn->rev < REV_CMN650_R2P0 || cmn->rev == REV_CMN650_R1P2) { 721 if (type == CMN_TYPE_HNF && eventid > 0x22) 722 return 0; 723 if (type == CMN_TYPE_SBSX && eventid == 0x17) 724 return 0; 725 if (type == CMN_TYPE_RNI && eventid > 0x10) 726 return 0; 727 } 728 } else if (cmn->part == PART_CMN700) { 729 if (cmn->rev < REV_CMN700_R2P0) { 730 if (type == CMN_TYPE_HNF && eventid > 0x2c) 731 return 0; 732 if (type == CMN_TYPE_CCHA && eventid > 0x74) 733 return 0; 734 if (type == CMN_TYPE_CCLA && eventid > 0x27) 735 return 0; 736 } 737 if (cmn->rev < REV_CMN700_R1P0) { 738 if (type == CMN_TYPE_HNF && eventid > 0x2b) 739 return 0; 740 } 741 } 742 743 if (!arm_cmn_node(cmn, type)) 744 return 0; 745 746 return attr->mode; 747 } 748 749 #define _CMN_EVENT_DVM(_model, _name, _event, _occup, _fsel) \ 750 _CMN_EVENT_ATTR(_model, dn_##_name, CMN_TYPE_DVM, _event, _occup, _fsel) 751 #define CMN_EVENT_DTC(_name) \ 752 CMN_EVENT_ATTR(CMN_ANY, dtc_##_name, CMN_TYPE_DTC, 0) 753 #define CMN_EVENT_HNF(_model, _name, _event) \ 754 CMN_EVENT_ATTR(_model, hnf_##_name, CMN_TYPE_HNF, _event) 755 #define CMN_EVENT_HNI(_name, _event) \ 756 CMN_EVENT_ATTR(CMN_ANY, hni_##_name, CMN_TYPE_HNI, _event) 757 #define CMN_EVENT_HNP(_name, _event) \ 758 CMN_EVENT_ATTR(CMN_ANY, hnp_##_name, CMN_TYPE_HNP, _event) 759 #define __CMN_EVENT_XP(_name, _event) \ 760 CMN_EVENT_ATTR(CMN_ANY, mxp_##_name, CMN_TYPE_XP, _event) 761 #define CMN_EVENT_SBSX(_model, _name, _event) \ 762 CMN_EVENT_ATTR(_model, sbsx_##_name, CMN_TYPE_SBSX, _event) 763 #define CMN_EVENT_RNID(_model, _name, _event) \ 764 CMN_EVENT_ATTR(_model, rnid_##_name, CMN_TYPE_RNI, _event) 765 #define CMN_EVENT_MTSX(_name, _event) \ 766 CMN_EVENT_ATTR(CMN_ANY, mtsx_##_name, CMN_TYPE_MTSX, _event) 767 #define CMN_EVENT_CXRA(_model, _name, _event) \ 768 CMN_EVENT_ATTR(_model, cxra_##_name, CMN_TYPE_CXRA, _event) 769 #define CMN_EVENT_CXHA(_name, _event) \ 770 CMN_EVENT_ATTR(CMN_ANY, cxha_##_name, CMN_TYPE_CXHA, _event) 771 #define CMN_EVENT_CCRA(_name, _event) \ 772 CMN_EVENT_ATTR(CMN_ANY, ccra_##_name, CMN_TYPE_CCRA, _event) 773 #define CMN_EVENT_CCHA(_name, _event) \ 774 CMN_EVENT_ATTR(CMN_ANY, ccha_##_name, CMN_TYPE_CCHA, _event) 775 #define CMN_EVENT_CCLA(_name, _event) \ 776 CMN_EVENT_ATTR(CMN_ANY, ccla_##_name, CMN_TYPE_CCLA, _event) 777 #define CMN_EVENT_CCLA_RNI(_name, _event) \ 778 CMN_EVENT_ATTR(CMN_ANY, ccla_rni_##_name, CMN_TYPE_CCLA_RNI, _event) 779 #define CMN_EVENT_HNS(_name, _event) \ 780 CMN_EVENT_ATTR(CMN_ANY, hns_##_name, CMN_TYPE_HNS, _event) 781 782 #define CMN_EVENT_DVM(_model, _name, _event) \ 783 _CMN_EVENT_DVM(_model, _name, _event, 0, SEL_NONE) 784 #define CMN_EVENT_DVM_OCC(_model, _name, _event) \ 785 _CMN_EVENT_DVM(_model, _name##_all, _event, 0, SEL_OCCUP1ID), \ 786 _CMN_EVENT_DVM(_model, _name##_dvmop, _event, 1, SEL_OCCUP1ID), \ 787 _CMN_EVENT_DVM(_model, _name##_dvmsync, _event, 2, SEL_OCCUP1ID) 788 789 #define CMN_EVENT_HN_OCC(_model, _name, _type, _event) \ 790 _CMN_EVENT_ATTR(_model, _name##_all, _type, _event, 0, SEL_OCCUP1ID), \ 791 _CMN_EVENT_ATTR(_model, _name##_read, _type, _event, 1, SEL_OCCUP1ID), \ 792 _CMN_EVENT_ATTR(_model, _name##_write, _type, _event, 2, SEL_OCCUP1ID), \ 793 _CMN_EVENT_ATTR(_model, _name##_atomic, _type, _event, 3, SEL_OCCUP1ID), \ 794 _CMN_EVENT_ATTR(_model, _name##_stash, _type, _event, 4, SEL_OCCUP1ID) 795 #define CMN_EVENT_HN_CLS(_model, _name, _type, _event) \ 796 _CMN_EVENT_ATTR(_model, _name##_class0, _type, _event, 0, SEL_CLASS_OCCUP_ID), \ 797 _CMN_EVENT_ATTR(_model, _name##_class1, _type, _event, 1, SEL_CLASS_OCCUP_ID), \ 798 _CMN_EVENT_ATTR(_model, _name##_class2, _type, _event, 2, SEL_CLASS_OCCUP_ID), \ 799 _CMN_EVENT_ATTR(_model, _name##_class3, _type, _event, 3, SEL_CLASS_OCCUP_ID) 800 #define CMN_EVENT_HN_SNT(_model, _name, _type, _event) \ 801 _CMN_EVENT_ATTR(_model, _name##_all, _type, _event, 0, SEL_CBUSY_SNTHROTTLE_SEL), \ 802 _CMN_EVENT_ATTR(_model, _name##_group0_read, _type, _event, 1, SEL_CBUSY_SNTHROTTLE_SEL), \ 803 _CMN_EVENT_ATTR(_model, _name##_group0_write, _type, _event, 2, SEL_CBUSY_SNTHROTTLE_SEL), \ 804 _CMN_EVENT_ATTR(_model, _name##_group1_read, _type, _event, 3, SEL_CBUSY_SNTHROTTLE_SEL), \ 805 _CMN_EVENT_ATTR(_model, _name##_group1_write, _type, _event, 4, SEL_CBUSY_SNTHROTTLE_SEL), \ 806 _CMN_EVENT_ATTR(_model, _name##_read, _type, _event, 5, SEL_CBUSY_SNTHROTTLE_SEL), \ 807 _CMN_EVENT_ATTR(_model, _name##_write, _type, _event, 6, SEL_CBUSY_SNTHROTTLE_SEL) 808 809 #define CMN_EVENT_HNF_OCC(_model, _name, _event) \ 810 CMN_EVENT_HN_OCC(_model, hnf_##_name, CMN_TYPE_HNF, _event) 811 #define CMN_EVENT_HNF_CLS(_model, _name, _event) \ 812 CMN_EVENT_HN_CLS(_model, hnf_##_name, CMN_TYPE_HNS, _event) 813 #define CMN_EVENT_HNF_SNT(_model, _name, _event) \ 814 CMN_EVENT_HN_SNT(_model, hnf_##_name, CMN_TYPE_HNF, _event) 815 816 #define CMN_EVENT_HNS_OCC(_name, _event) \ 817 CMN_EVENT_HN_OCC(CMN_ANY, hns_##_name, CMN_TYPE_HNS, _event), \ 818 _CMN_EVENT_ATTR(CMN_ANY, hns_##_name##_rxsnp, CMN_TYPE_HNS, _event, 5, SEL_OCCUP1ID), \ 819 _CMN_EVENT_ATTR(CMN_ANY, hns_##_name##_lbt, CMN_TYPE_HNS, _event, 6, SEL_OCCUP1ID), \ 820 _CMN_EVENT_ATTR(CMN_ANY, hns_##_name##_hbt, CMN_TYPE_HNS, _event, 7, SEL_OCCUP1ID) 821 #define CMN_EVENT_HNS_CLS( _name, _event) \ 822 CMN_EVENT_HN_CLS(CMN_ANY, hns_##_name, CMN_TYPE_HNS, _event) 823 #define CMN_EVENT_HNS_SNT(_name, _event) \ 824 CMN_EVENT_HN_SNT(CMN_ANY, hns_##_name, CMN_TYPE_HNS, _event) 825 #define CMN_EVENT_HNS_HBT(_name, _event) \ 826 _CMN_EVENT_ATTR(CMN_ANY, hns_##_name##_all, CMN_TYPE_HNS, _event, 0, SEL_HBT_LBT_SEL), \ 827 _CMN_EVENT_ATTR(CMN_ANY, hns_##_name##_hbt, CMN_TYPE_HNS, _event, 1, SEL_HBT_LBT_SEL), \ 828 _CMN_EVENT_ATTR(CMN_ANY, hns_##_name##_lbt, CMN_TYPE_HNS, _event, 2, SEL_HBT_LBT_SEL) 829 #define CMN_EVENT_HNS_SNH(_name, _event) \ 830 _CMN_EVENT_ATTR(CMN_ANY, hns_##_name##_all, CMN_TYPE_HNS, _event, 0, SEL_SN_HOME_SEL), \ 831 _CMN_EVENT_ATTR(CMN_ANY, hns_##_name##_sn, CMN_TYPE_HNS, _event, 1, SEL_SN_HOME_SEL), \ 832 _CMN_EVENT_ATTR(CMN_ANY, hns_##_name##_home, CMN_TYPE_HNS, _event, 2, SEL_SN_HOME_SEL) 833 834 #define _CMN_EVENT_XP_MESH(_name, _event) \ 835 __CMN_EVENT_XP(e_##_name, (_event) | (0 << 2)), \ 836 __CMN_EVENT_XP(w_##_name, (_event) | (1 << 2)), \ 837 __CMN_EVENT_XP(n_##_name, (_event) | (2 << 2)), \ 838 __CMN_EVENT_XP(s_##_name, (_event) | (3 << 2)) 839 840 #define _CMN_EVENT_XP_PORT(_name, _event) \ 841 __CMN_EVENT_XP(p0_##_name, (_event) | (4 << 2)), \ 842 __CMN_EVENT_XP(p1_##_name, (_event) | (5 << 2)), \ 843 __CMN_EVENT_XP(p2_##_name, (_event) | (6 << 2)), \ 844 __CMN_EVENT_XP(p3_##_name, (_event) | (7 << 2)) 845 846 #define _CMN_EVENT_XP(_name, _event) \ 847 _CMN_EVENT_XP_MESH(_name, _event), \ 848 _CMN_EVENT_XP_PORT(_name, _event) 849 850 /* Good thing there are only 3 fundamental XP events... */ 851 #define CMN_EVENT_XP(_name, _event) \ 852 _CMN_EVENT_XP(req_##_name, (_event) | (0 << 5)), \ 853 _CMN_EVENT_XP(rsp_##_name, (_event) | (1 << 5)), \ 854 _CMN_EVENT_XP(snp_##_name, (_event) | (2 << 5)), \ 855 _CMN_EVENT_XP(dat_##_name, (_event) | (3 << 5)), \ 856 _CMN_EVENT_XP(pub_##_name, (_event) | (4 << 5)), \ 857 _CMN_EVENT_XP(rsp2_##_name, (_event) | (5 << 5)), \ 858 _CMN_EVENT_XP(dat2_##_name, (_event) | (6 << 5)), \ 859 _CMN_EVENT_XP(snp2_##_name, (_event) | (7 << 5)), \ 860 _CMN_EVENT_XP(req2_##_name, (_event) | (8 << 5)) 861 862 #define CMN_EVENT_XP_DAT(_name, _event) \ 863 _CMN_EVENT_XP_PORT(dat_##_name, (_event) | (3 << 5)), \ 864 _CMN_EVENT_XP_PORT(dat2_##_name, (_event) | (6 << 5)) 865 866 867 static struct attribute *arm_cmn_event_attrs[] = { 868 CMN_EVENT_DTC(cycles), 869 870 /* 871 * DVM node events conflict with HN-I events in the equivalent PMU 872 * slot, but our lazy short-cut of using the DTM counter index for 873 * the PMU index as well happens to avoid that by construction. 874 */ 875 CMN_EVENT_DVM(CMN600, rxreq_dvmop, 0x01), 876 CMN_EVENT_DVM(CMN600, rxreq_dvmsync, 0x02), 877 CMN_EVENT_DVM(CMN600, rxreq_dvmop_vmid_filtered, 0x03), 878 CMN_EVENT_DVM(CMN600, rxreq_retried, 0x04), 879 CMN_EVENT_DVM_OCC(CMN600, rxreq_trk_occupancy, 0x05), 880 CMN_EVENT_DVM(NOT_CMN600, dvmop_tlbi, 0x01), 881 CMN_EVENT_DVM(NOT_CMN600, dvmop_bpi, 0x02), 882 CMN_EVENT_DVM(NOT_CMN600, dvmop_pici, 0x03), 883 CMN_EVENT_DVM(NOT_CMN600, dvmop_vici, 0x04), 884 CMN_EVENT_DVM(NOT_CMN600, dvmsync, 0x05), 885 CMN_EVENT_DVM(NOT_CMN600, vmid_filtered, 0x06), 886 CMN_EVENT_DVM(NOT_CMN600, rndop_filtered, 0x07), 887 CMN_EVENT_DVM(NOT_CMN600, retry, 0x08), 888 CMN_EVENT_DVM(NOT_CMN600, txsnp_flitv, 0x09), 889 CMN_EVENT_DVM(NOT_CMN600, txsnp_stall, 0x0a), 890 CMN_EVENT_DVM(NOT_CMN600, trkfull, 0x0b), 891 CMN_EVENT_DVM_OCC(NOT_CMN600, trk_occupancy, 0x0c), 892 CMN_EVENT_DVM_OCC(CMN700, trk_occupancy_cxha, 0x0d), 893 CMN_EVENT_DVM_OCC(CMN700, trk_occupancy_pdn, 0x0e), 894 CMN_EVENT_DVM(CMN700, trk_alloc, 0x0f), 895 CMN_EVENT_DVM(CMN700, trk_cxha_alloc, 0x10), 896 CMN_EVENT_DVM(CMN700, trk_pdn_alloc, 0x11), 897 CMN_EVENT_DVM(CMN700, txsnp_stall_limit, 0x12), 898 CMN_EVENT_DVM(CMN700, rxsnp_stall_starv, 0x13), 899 CMN_EVENT_DVM(CMN700, txsnp_sync_stall_op, 0x14), 900 901 CMN_EVENT_HNF(CMN_ANY, cache_miss, 0x01), 902 CMN_EVENT_HNF(CMN_ANY, slc_sf_cache_access, 0x02), 903 CMN_EVENT_HNF(CMN_ANY, cache_fill, 0x03), 904 CMN_EVENT_HNF(CMN_ANY, pocq_retry, 0x04), 905 CMN_EVENT_HNF(CMN_ANY, pocq_reqs_recvd, 0x05), 906 CMN_EVENT_HNF(CMN_ANY, sf_hit, 0x06), 907 CMN_EVENT_HNF(CMN_ANY, sf_evictions, 0x07), 908 CMN_EVENT_HNF(CMN_ANY, dir_snoops_sent, 0x08), 909 CMN_EVENT_HNF(CMN_ANY, brd_snoops_sent, 0x09), 910 CMN_EVENT_HNF(CMN_ANY, slc_eviction, 0x0a), 911 CMN_EVENT_HNF(CMN_ANY, slc_fill_invalid_way, 0x0b), 912 CMN_EVENT_HNF(CMN_ANY, mc_retries, 0x0c), 913 CMN_EVENT_HNF(CMN_ANY, mc_reqs, 0x0d), 914 CMN_EVENT_HNF(CMN_ANY, qos_hh_retry, 0x0e), 915 CMN_EVENT_HNF_OCC(CMN_ANY, qos_pocq_occupancy, 0x0f), 916 CMN_EVENT_HNF(CMN_ANY, pocq_addrhaz, 0x10), 917 CMN_EVENT_HNF(CMN_ANY, pocq_atomic_addrhaz, 0x11), 918 CMN_EVENT_HNF(CMN_ANY, ld_st_swp_adq_full, 0x12), 919 CMN_EVENT_HNF(CMN_ANY, cmp_adq_full, 0x13), 920 CMN_EVENT_HNF(CMN_ANY, txdat_stall, 0x14), 921 CMN_EVENT_HNF(CMN_ANY, txrsp_stall, 0x15), 922 CMN_EVENT_HNF(CMN_ANY, seq_full, 0x16), 923 CMN_EVENT_HNF(CMN_ANY, seq_hit, 0x17), 924 CMN_EVENT_HNF(CMN_ANY, snp_sent, 0x18), 925 CMN_EVENT_HNF(CMN_ANY, sfbi_dir_snp_sent, 0x19), 926 CMN_EVENT_HNF(CMN_ANY, sfbi_brd_snp_sent, 0x1a), 927 CMN_EVENT_HNF(CMN_ANY, snp_sent_untrk, 0x1b), 928 CMN_EVENT_HNF(CMN_ANY, intv_dirty, 0x1c), 929 CMN_EVENT_HNF(CMN_ANY, stash_snp_sent, 0x1d), 930 CMN_EVENT_HNF(CMN_ANY, stash_data_pull, 0x1e), 931 CMN_EVENT_HNF(CMN_ANY, snp_fwded, 0x1f), 932 CMN_EVENT_HNF(NOT_CMN600, atomic_fwd, 0x20), 933 CMN_EVENT_HNF(NOT_CMN600, mpam_hardlim, 0x21), 934 CMN_EVENT_HNF(NOT_CMN600, mpam_softlim, 0x22), 935 CMN_EVENT_HNF(CMN_650ON, snp_sent_cluster, 0x23), 936 CMN_EVENT_HNF(CMN_650ON, sf_imprecise_evict, 0x24), 937 CMN_EVENT_HNF(CMN_650ON, sf_evict_shared_line, 0x25), 938 CMN_EVENT_HNF_CLS(CMN700, pocq_class_occup, 0x26), 939 CMN_EVENT_HNF_CLS(CMN700, pocq_class_retry, 0x27), 940 CMN_EVENT_HNF_CLS(CMN700, class_mc_reqs, 0x28), 941 CMN_EVENT_HNF_CLS(CMN700, class_cgnt_cmin, 0x29), 942 CMN_EVENT_HNF_SNT(CMN700, sn_throttle, 0x2a), 943 CMN_EVENT_HNF_SNT(CMN700, sn_throttle_min, 0x2b), 944 CMN_EVENT_HNF(CMN700, sf_precise_to_imprecise, 0x2c), 945 CMN_EVENT_HNF(CMN700, snp_intv_cln, 0x2d), 946 CMN_EVENT_HNF(CMN700, nc_excl, 0x2e), 947 CMN_EVENT_HNF(CMN700, excl_mon_ovfl, 0x2f), 948 949 CMN_EVENT_HNI(rrt_rd_occ_cnt_ovfl, 0x20), 950 CMN_EVENT_HNI(rrt_wr_occ_cnt_ovfl, 0x21), 951 CMN_EVENT_HNI(rdt_rd_occ_cnt_ovfl, 0x22), 952 CMN_EVENT_HNI(rdt_wr_occ_cnt_ovfl, 0x23), 953 CMN_EVENT_HNI(wdb_occ_cnt_ovfl, 0x24), 954 CMN_EVENT_HNI(rrt_rd_alloc, 0x25), 955 CMN_EVENT_HNI(rrt_wr_alloc, 0x26), 956 CMN_EVENT_HNI(rdt_rd_alloc, 0x27), 957 CMN_EVENT_HNI(rdt_wr_alloc, 0x28), 958 CMN_EVENT_HNI(wdb_alloc, 0x29), 959 CMN_EVENT_HNI(txrsp_retryack, 0x2a), 960 CMN_EVENT_HNI(arvalid_no_arready, 0x2b), 961 CMN_EVENT_HNI(arready_no_arvalid, 0x2c), 962 CMN_EVENT_HNI(awvalid_no_awready, 0x2d), 963 CMN_EVENT_HNI(awready_no_awvalid, 0x2e), 964 CMN_EVENT_HNI(wvalid_no_wready, 0x2f), 965 CMN_EVENT_HNI(txdat_stall, 0x30), 966 CMN_EVENT_HNI(nonpcie_serialization, 0x31), 967 CMN_EVENT_HNI(pcie_serialization, 0x32), 968 969 /* 970 * HN-P events squat on top of the HN-I similarly to DVM events, except 971 * for being crammed into the same physical node as well. And of course 972 * where would the fun be if the same events were in the same order... 973 */ 974 CMN_EVENT_HNP(rrt_wr_occ_cnt_ovfl, 0x01), 975 CMN_EVENT_HNP(rdt_wr_occ_cnt_ovfl, 0x02), 976 CMN_EVENT_HNP(wdb_occ_cnt_ovfl, 0x03), 977 CMN_EVENT_HNP(rrt_wr_alloc, 0x04), 978 CMN_EVENT_HNP(rdt_wr_alloc, 0x05), 979 CMN_EVENT_HNP(wdb_alloc, 0x06), 980 CMN_EVENT_HNP(awvalid_no_awready, 0x07), 981 CMN_EVENT_HNP(awready_no_awvalid, 0x08), 982 CMN_EVENT_HNP(wvalid_no_wready, 0x09), 983 CMN_EVENT_HNP(rrt_rd_occ_cnt_ovfl, 0x11), 984 CMN_EVENT_HNP(rdt_rd_occ_cnt_ovfl, 0x12), 985 CMN_EVENT_HNP(rrt_rd_alloc, 0x13), 986 CMN_EVENT_HNP(rdt_rd_alloc, 0x14), 987 CMN_EVENT_HNP(arvalid_no_arready, 0x15), 988 CMN_EVENT_HNP(arready_no_arvalid, 0x16), 989 990 CMN_EVENT_XP(txflit_valid, 0x01), 991 CMN_EVENT_XP(txflit_stall, 0x02), 992 CMN_EVENT_XP_DAT(partial_dat_flit, 0x03), 993 /* We treat watchpoints as a special made-up class of XP events */ 994 CMN_EVENT_ATTR(CMN_ANY, watchpoint_up, CMN_TYPE_WP, CMN_WP_UP), 995 CMN_EVENT_ATTR(CMN_ANY, watchpoint_down, CMN_TYPE_WP, CMN_WP_DOWN), 996 997 CMN_EVENT_SBSX(CMN_ANY, rd_req, 0x01), 998 CMN_EVENT_SBSX(CMN_ANY, wr_req, 0x02), 999 CMN_EVENT_SBSX(CMN_ANY, cmo_req, 0x03), 1000 CMN_EVENT_SBSX(CMN_ANY, txrsp_retryack, 0x04), 1001 CMN_EVENT_SBSX(CMN_ANY, txdat_flitv, 0x05), 1002 CMN_EVENT_SBSX(CMN_ANY, txrsp_flitv, 0x06), 1003 CMN_EVENT_SBSX(CMN_ANY, rd_req_trkr_occ_cnt_ovfl, 0x11), 1004 CMN_EVENT_SBSX(CMN_ANY, wr_req_trkr_occ_cnt_ovfl, 0x12), 1005 CMN_EVENT_SBSX(CMN_ANY, cmo_req_trkr_occ_cnt_ovfl, 0x13), 1006 CMN_EVENT_SBSX(CMN_ANY, wdb_occ_cnt_ovfl, 0x14), 1007 CMN_EVENT_SBSX(CMN_ANY, rd_axi_trkr_occ_cnt_ovfl, 0x15), 1008 CMN_EVENT_SBSX(CMN_ANY, cmo_axi_trkr_occ_cnt_ovfl, 0x16), 1009 CMN_EVENT_SBSX(NOT_CMN600, rdb_occ_cnt_ovfl, 0x17), 1010 CMN_EVENT_SBSX(CMN_ANY, arvalid_no_arready, 0x21), 1011 CMN_EVENT_SBSX(CMN_ANY, awvalid_no_awready, 0x22), 1012 CMN_EVENT_SBSX(CMN_ANY, wvalid_no_wready, 0x23), 1013 CMN_EVENT_SBSX(CMN_ANY, txdat_stall, 0x24), 1014 CMN_EVENT_SBSX(CMN_ANY, txrsp_stall, 0x25), 1015 1016 CMN_EVENT_RNID(CMN_ANY, s0_rdata_beats, 0x01), 1017 CMN_EVENT_RNID(CMN_ANY, s1_rdata_beats, 0x02), 1018 CMN_EVENT_RNID(CMN_ANY, s2_rdata_beats, 0x03), 1019 CMN_EVENT_RNID(CMN_ANY, rxdat_flits, 0x04), 1020 CMN_EVENT_RNID(CMN_ANY, txdat_flits, 0x05), 1021 CMN_EVENT_RNID(CMN_ANY, txreq_flits_total, 0x06), 1022 CMN_EVENT_RNID(CMN_ANY, txreq_flits_retried, 0x07), 1023 CMN_EVENT_RNID(CMN_ANY, rrt_occ_ovfl, 0x08), 1024 CMN_EVENT_RNID(CMN_ANY, wrt_occ_ovfl, 0x09), 1025 CMN_EVENT_RNID(CMN_ANY, txreq_flits_replayed, 0x0a), 1026 CMN_EVENT_RNID(CMN_ANY, wrcancel_sent, 0x0b), 1027 CMN_EVENT_RNID(CMN_ANY, s0_wdata_beats, 0x0c), 1028 CMN_EVENT_RNID(CMN_ANY, s1_wdata_beats, 0x0d), 1029 CMN_EVENT_RNID(CMN_ANY, s2_wdata_beats, 0x0e), 1030 CMN_EVENT_RNID(CMN_ANY, rrt_alloc, 0x0f), 1031 CMN_EVENT_RNID(CMN_ANY, wrt_alloc, 0x10), 1032 CMN_EVENT_RNID(CMN600, rdb_unord, 0x11), 1033 CMN_EVENT_RNID(CMN600, rdb_replay, 0x12), 1034 CMN_EVENT_RNID(CMN600, rdb_hybrid, 0x13), 1035 CMN_EVENT_RNID(CMN600, rdb_ord, 0x14), 1036 CMN_EVENT_RNID(NOT_CMN600, padb_occ_ovfl, 0x11), 1037 CMN_EVENT_RNID(NOT_CMN600, rpdb_occ_ovfl, 0x12), 1038 CMN_EVENT_RNID(NOT_CMN600, rrt_occup_ovfl_slice1, 0x13), 1039 CMN_EVENT_RNID(NOT_CMN600, rrt_occup_ovfl_slice2, 0x14), 1040 CMN_EVENT_RNID(NOT_CMN600, rrt_occup_ovfl_slice3, 0x15), 1041 CMN_EVENT_RNID(NOT_CMN600, wrt_throttled, 0x16), 1042 CMN_EVENT_RNID(CMN700, ldb_full, 0x17), 1043 CMN_EVENT_RNID(CMN700, rrt_rd_req_occup_ovfl_slice0, 0x18), 1044 CMN_EVENT_RNID(CMN700, rrt_rd_req_occup_ovfl_slice1, 0x19), 1045 CMN_EVENT_RNID(CMN700, rrt_rd_req_occup_ovfl_slice2, 0x1a), 1046 CMN_EVENT_RNID(CMN700, rrt_rd_req_occup_ovfl_slice3, 0x1b), 1047 CMN_EVENT_RNID(CMN700, rrt_burst_occup_ovfl_slice0, 0x1c), 1048 CMN_EVENT_RNID(CMN700, rrt_burst_occup_ovfl_slice1, 0x1d), 1049 CMN_EVENT_RNID(CMN700, rrt_burst_occup_ovfl_slice2, 0x1e), 1050 CMN_EVENT_RNID(CMN700, rrt_burst_occup_ovfl_slice3, 0x1f), 1051 CMN_EVENT_RNID(CMN700, rrt_burst_alloc, 0x20), 1052 CMN_EVENT_RNID(CMN700, awid_hash, 0x21), 1053 CMN_EVENT_RNID(CMN700, atomic_alloc, 0x22), 1054 CMN_EVENT_RNID(CMN700, atomic_occ_ovfl, 0x23), 1055 1056 CMN_EVENT_MTSX(tc_lookup, 0x01), 1057 CMN_EVENT_MTSX(tc_fill, 0x02), 1058 CMN_EVENT_MTSX(tc_miss, 0x03), 1059 CMN_EVENT_MTSX(tdb_forward, 0x04), 1060 CMN_EVENT_MTSX(tcq_hazard, 0x05), 1061 CMN_EVENT_MTSX(tcq_rd_alloc, 0x06), 1062 CMN_EVENT_MTSX(tcq_wr_alloc, 0x07), 1063 CMN_EVENT_MTSX(tcq_cmo_alloc, 0x08), 1064 CMN_EVENT_MTSX(axi_rd_req, 0x09), 1065 CMN_EVENT_MTSX(axi_wr_req, 0x0a), 1066 CMN_EVENT_MTSX(tcq_occ_cnt_ovfl, 0x0b), 1067 CMN_EVENT_MTSX(tdb_occ_cnt_ovfl, 0x0c), 1068 1069 CMN_EVENT_CXRA(CMN_ANY, rht_occ, 0x01), 1070 CMN_EVENT_CXRA(CMN_ANY, sht_occ, 0x02), 1071 CMN_EVENT_CXRA(CMN_ANY, rdb_occ, 0x03), 1072 CMN_EVENT_CXRA(CMN_ANY, wdb_occ, 0x04), 1073 CMN_EVENT_CXRA(CMN_ANY, ssb_occ, 0x05), 1074 CMN_EVENT_CXRA(CMN_ANY, snp_bcasts, 0x06), 1075 CMN_EVENT_CXRA(CMN_ANY, req_chains, 0x07), 1076 CMN_EVENT_CXRA(CMN_ANY, req_chain_avglen, 0x08), 1077 CMN_EVENT_CXRA(CMN_ANY, chirsp_stalls, 0x09), 1078 CMN_EVENT_CXRA(CMN_ANY, chidat_stalls, 0x0a), 1079 CMN_EVENT_CXRA(CMN_ANY, cxreq_pcrd_stalls_link0, 0x0b), 1080 CMN_EVENT_CXRA(CMN_ANY, cxreq_pcrd_stalls_link1, 0x0c), 1081 CMN_EVENT_CXRA(CMN_ANY, cxreq_pcrd_stalls_link2, 0x0d), 1082 CMN_EVENT_CXRA(CMN_ANY, cxdat_pcrd_stalls_link0, 0x0e), 1083 CMN_EVENT_CXRA(CMN_ANY, cxdat_pcrd_stalls_link1, 0x0f), 1084 CMN_EVENT_CXRA(CMN_ANY, cxdat_pcrd_stalls_link2, 0x10), 1085 CMN_EVENT_CXRA(CMN_ANY, external_chirsp_stalls, 0x11), 1086 CMN_EVENT_CXRA(CMN_ANY, external_chidat_stalls, 0x12), 1087 CMN_EVENT_CXRA(NOT_CMN600, cxmisc_pcrd_stalls_link0, 0x13), 1088 CMN_EVENT_CXRA(NOT_CMN600, cxmisc_pcrd_stalls_link1, 0x14), 1089 CMN_EVENT_CXRA(NOT_CMN600, cxmisc_pcrd_stalls_link2, 0x15), 1090 1091 CMN_EVENT_CXHA(rddatbyp, 0x21), 1092 CMN_EVENT_CXHA(chirsp_up_stall, 0x22), 1093 CMN_EVENT_CXHA(chidat_up_stall, 0x23), 1094 CMN_EVENT_CXHA(snppcrd_link0_stall, 0x24), 1095 CMN_EVENT_CXHA(snppcrd_link1_stall, 0x25), 1096 CMN_EVENT_CXHA(snppcrd_link2_stall, 0x26), 1097 CMN_EVENT_CXHA(reqtrk_occ, 0x27), 1098 CMN_EVENT_CXHA(rdb_occ, 0x28), 1099 CMN_EVENT_CXHA(rdbyp_occ, 0x29), 1100 CMN_EVENT_CXHA(wdb_occ, 0x2a), 1101 CMN_EVENT_CXHA(snptrk_occ, 0x2b), 1102 CMN_EVENT_CXHA(sdb_occ, 0x2c), 1103 CMN_EVENT_CXHA(snphaz_occ, 0x2d), 1104 1105 CMN_EVENT_CCRA(rht_occ, 0x41), 1106 CMN_EVENT_CCRA(sht_occ, 0x42), 1107 CMN_EVENT_CCRA(rdb_occ, 0x43), 1108 CMN_EVENT_CCRA(wdb_occ, 0x44), 1109 CMN_EVENT_CCRA(ssb_occ, 0x45), 1110 CMN_EVENT_CCRA(snp_bcasts, 0x46), 1111 CMN_EVENT_CCRA(req_chains, 0x47), 1112 CMN_EVENT_CCRA(req_chain_avglen, 0x48), 1113 CMN_EVENT_CCRA(chirsp_stalls, 0x49), 1114 CMN_EVENT_CCRA(chidat_stalls, 0x4a), 1115 CMN_EVENT_CCRA(cxreq_pcrd_stalls_link0, 0x4b), 1116 CMN_EVENT_CCRA(cxreq_pcrd_stalls_link1, 0x4c), 1117 CMN_EVENT_CCRA(cxreq_pcrd_stalls_link2, 0x4d), 1118 CMN_EVENT_CCRA(cxdat_pcrd_stalls_link0, 0x4e), 1119 CMN_EVENT_CCRA(cxdat_pcrd_stalls_link1, 0x4f), 1120 CMN_EVENT_CCRA(cxdat_pcrd_stalls_link2, 0x50), 1121 CMN_EVENT_CCRA(external_chirsp_stalls, 0x51), 1122 CMN_EVENT_CCRA(external_chidat_stalls, 0x52), 1123 CMN_EVENT_CCRA(cxmisc_pcrd_stalls_link0, 0x53), 1124 CMN_EVENT_CCRA(cxmisc_pcrd_stalls_link1, 0x54), 1125 CMN_EVENT_CCRA(cxmisc_pcrd_stalls_link2, 0x55), 1126 CMN_EVENT_CCRA(rht_alloc, 0x56), 1127 CMN_EVENT_CCRA(sht_alloc, 0x57), 1128 CMN_EVENT_CCRA(rdb_alloc, 0x58), 1129 CMN_EVENT_CCRA(wdb_alloc, 0x59), 1130 CMN_EVENT_CCRA(ssb_alloc, 0x5a), 1131 1132 CMN_EVENT_CCHA(rddatbyp, 0x61), 1133 CMN_EVENT_CCHA(chirsp_up_stall, 0x62), 1134 CMN_EVENT_CCHA(chidat_up_stall, 0x63), 1135 CMN_EVENT_CCHA(snppcrd_link0_stall, 0x64), 1136 CMN_EVENT_CCHA(snppcrd_link1_stall, 0x65), 1137 CMN_EVENT_CCHA(snppcrd_link2_stall, 0x66), 1138 CMN_EVENT_CCHA(reqtrk_occ, 0x67), 1139 CMN_EVENT_CCHA(rdb_occ, 0x68), 1140 CMN_EVENT_CCHA(rdbyp_occ, 0x69), 1141 CMN_EVENT_CCHA(wdb_occ, 0x6a), 1142 CMN_EVENT_CCHA(snptrk_occ, 0x6b), 1143 CMN_EVENT_CCHA(sdb_occ, 0x6c), 1144 CMN_EVENT_CCHA(snphaz_occ, 0x6d), 1145 CMN_EVENT_CCHA(reqtrk_alloc, 0x6e), 1146 CMN_EVENT_CCHA(rdb_alloc, 0x6f), 1147 CMN_EVENT_CCHA(rdbyp_alloc, 0x70), 1148 CMN_EVENT_CCHA(wdb_alloc, 0x71), 1149 CMN_EVENT_CCHA(snptrk_alloc, 0x72), 1150 CMN_EVENT_CCHA(sdb_alloc, 0x73), 1151 CMN_EVENT_CCHA(snphaz_alloc, 0x74), 1152 CMN_EVENT_CCHA(pb_rhu_req_occ, 0x75), 1153 CMN_EVENT_CCHA(pb_rhu_req_alloc, 0x76), 1154 CMN_EVENT_CCHA(pb_rhu_pcie_req_occ, 0x77), 1155 CMN_EVENT_CCHA(pb_rhu_pcie_req_alloc, 0x78), 1156 CMN_EVENT_CCHA(pb_pcie_wr_req_occ, 0x79), 1157 CMN_EVENT_CCHA(pb_pcie_wr_req_alloc, 0x7a), 1158 CMN_EVENT_CCHA(pb_pcie_reg_req_occ, 0x7b), 1159 CMN_EVENT_CCHA(pb_pcie_reg_req_alloc, 0x7c), 1160 CMN_EVENT_CCHA(pb_pcie_rsvd_req_occ, 0x7d), 1161 CMN_EVENT_CCHA(pb_pcie_rsvd_req_alloc, 0x7e), 1162 CMN_EVENT_CCHA(pb_rhu_dat_occ, 0x7f), 1163 CMN_EVENT_CCHA(pb_rhu_dat_alloc, 0x80), 1164 CMN_EVENT_CCHA(pb_rhu_pcie_dat_occ, 0x81), 1165 CMN_EVENT_CCHA(pb_rhu_pcie_dat_alloc, 0x82), 1166 CMN_EVENT_CCHA(pb_pcie_wr_dat_occ, 0x83), 1167 CMN_EVENT_CCHA(pb_pcie_wr_dat_alloc, 0x84), 1168 1169 CMN_EVENT_CCLA(rx_cxs, 0x21), 1170 CMN_EVENT_CCLA(tx_cxs, 0x22), 1171 CMN_EVENT_CCLA(rx_cxs_avg_size, 0x23), 1172 CMN_EVENT_CCLA(tx_cxs_avg_size, 0x24), 1173 CMN_EVENT_CCLA(tx_cxs_lcrd_backpressure, 0x25), 1174 CMN_EVENT_CCLA(link_crdbuf_occ, 0x26), 1175 CMN_EVENT_CCLA(link_crdbuf_alloc, 0x27), 1176 CMN_EVENT_CCLA(pfwd_rcvr_cxs, 0x28), 1177 CMN_EVENT_CCLA(pfwd_sndr_num_flits, 0x29), 1178 CMN_EVENT_CCLA(pfwd_sndr_stalls_static_crd, 0x2a), 1179 CMN_EVENT_CCLA(pfwd_sndr_stalls_dynmaic_crd, 0x2b), 1180 1181 CMN_EVENT_HNS_HBT(cache_miss, 0x01), 1182 CMN_EVENT_HNS_HBT(slc_sf_cache_access, 0x02), 1183 CMN_EVENT_HNS_HBT(cache_fill, 0x03), 1184 CMN_EVENT_HNS_HBT(pocq_retry, 0x04), 1185 CMN_EVENT_HNS_HBT(pocq_reqs_recvd, 0x05), 1186 CMN_EVENT_HNS_HBT(sf_hit, 0x06), 1187 CMN_EVENT_HNS_HBT(sf_evictions, 0x07), 1188 CMN_EVENT_HNS(dir_snoops_sent, 0x08), 1189 CMN_EVENT_HNS(brd_snoops_sent, 0x09), 1190 CMN_EVENT_HNS_HBT(slc_eviction, 0x0a), 1191 CMN_EVENT_HNS_HBT(slc_fill_invalid_way, 0x0b), 1192 CMN_EVENT_HNS(mc_retries_local, 0x0c), 1193 CMN_EVENT_HNS_SNH(mc_reqs_local, 0x0d), 1194 CMN_EVENT_HNS(qos_hh_retry, 0x0e), 1195 CMN_EVENT_HNS_OCC(qos_pocq_occupancy, 0x0f), 1196 CMN_EVENT_HNS(pocq_addrhaz, 0x10), 1197 CMN_EVENT_HNS(pocq_atomic_addrhaz, 0x11), 1198 CMN_EVENT_HNS(ld_st_swp_adq_full, 0x12), 1199 CMN_EVENT_HNS(cmp_adq_full, 0x13), 1200 CMN_EVENT_HNS(txdat_stall, 0x14), 1201 CMN_EVENT_HNS(txrsp_stall, 0x15), 1202 CMN_EVENT_HNS(seq_full, 0x16), 1203 CMN_EVENT_HNS(seq_hit, 0x17), 1204 CMN_EVENT_HNS(snp_sent, 0x18), 1205 CMN_EVENT_HNS(sfbi_dir_snp_sent, 0x19), 1206 CMN_EVENT_HNS(sfbi_brd_snp_sent, 0x1a), 1207 CMN_EVENT_HNS(intv_dirty, 0x1c), 1208 CMN_EVENT_HNS(stash_snp_sent, 0x1d), 1209 CMN_EVENT_HNS(stash_data_pull, 0x1e), 1210 CMN_EVENT_HNS(snp_fwded, 0x1f), 1211 CMN_EVENT_HNS(atomic_fwd, 0x20), 1212 CMN_EVENT_HNS(mpam_hardlim, 0x21), 1213 CMN_EVENT_HNS(mpam_softlim, 0x22), 1214 CMN_EVENT_HNS(snp_sent_cluster, 0x23), 1215 CMN_EVENT_HNS(sf_imprecise_evict, 0x24), 1216 CMN_EVENT_HNS(sf_evict_shared_line, 0x25), 1217 CMN_EVENT_HNS_CLS(pocq_class_occup, 0x26), 1218 CMN_EVENT_HNS_CLS(pocq_class_retry, 0x27), 1219 CMN_EVENT_HNS_CLS(class_mc_reqs_local, 0x28), 1220 CMN_EVENT_HNS_CLS(class_cgnt_cmin, 0x29), 1221 CMN_EVENT_HNS_SNT(sn_throttle, 0x2a), 1222 CMN_EVENT_HNS_SNT(sn_throttle_min, 0x2b), 1223 CMN_EVENT_HNS(sf_precise_to_imprecise, 0x2c), 1224 CMN_EVENT_HNS(snp_intv_cln, 0x2d), 1225 CMN_EVENT_HNS(nc_excl, 0x2e), 1226 CMN_EVENT_HNS(excl_mon_ovfl, 0x2f), 1227 CMN_EVENT_HNS(snp_req_recvd, 0x30), 1228 CMN_EVENT_HNS(snp_req_byp_pocq, 0x31), 1229 CMN_EVENT_HNS(dir_ccgha_snp_sent, 0x32), 1230 CMN_EVENT_HNS(brd_ccgha_snp_sent, 0x33), 1231 CMN_EVENT_HNS(ccgha_snp_stall, 0x34), 1232 CMN_EVENT_HNS(lbt_req_hardlim, 0x35), 1233 CMN_EVENT_HNS(hbt_req_hardlim, 0x36), 1234 CMN_EVENT_HNS(sf_reupdate, 0x37), 1235 CMN_EVENT_HNS(excl_sf_imprecise, 0x38), 1236 CMN_EVENT_HNS(snp_pocq_addrhaz, 0x39), 1237 CMN_EVENT_HNS(mc_retries_remote, 0x3a), 1238 CMN_EVENT_HNS_SNH(mc_reqs_remote, 0x3b), 1239 CMN_EVENT_HNS_CLS(class_mc_reqs_remote, 0x3c), 1240 1241 NULL 1242 }; 1243 1244 static const struct attribute_group arm_cmn_event_attrs_group = { 1245 .name = "events", 1246 .attrs = arm_cmn_event_attrs, 1247 .is_visible = arm_cmn_event_attr_is_visible, 1248 }; 1249 1250 static ssize_t arm_cmn_format_show(struct device *dev, 1251 struct device_attribute *attr, char *buf) 1252 { 1253 struct arm_cmn_format_attr *fmt = container_of(attr, typeof(*fmt), attr); 1254 int lo = __ffs(fmt->field), hi = __fls(fmt->field); 1255 1256 if (lo == hi) 1257 return sysfs_emit(buf, "config:%d\n", lo); 1258 1259 if (!fmt->config) 1260 return sysfs_emit(buf, "config:%d-%d\n", lo, hi); 1261 1262 return sysfs_emit(buf, "config%d:%d-%d\n", fmt->config, lo, hi); 1263 } 1264 1265 #define _CMN_FORMAT_ATTR(_name, _cfg, _fld) \ 1266 (&((struct arm_cmn_format_attr[]) {{ \ 1267 .attr = __ATTR(_name, 0444, arm_cmn_format_show, NULL), \ 1268 .config = _cfg, \ 1269 .field = _fld, \ 1270 }})[0].attr.attr) 1271 #define CMN_FORMAT_ATTR(_name, _fld) _CMN_FORMAT_ATTR(_name, 0, _fld) 1272 1273 static struct attribute *arm_cmn_format_attrs[] = { 1274 CMN_FORMAT_ATTR(type, CMN_CONFIG_TYPE), 1275 CMN_FORMAT_ATTR(eventid, CMN_CONFIG_EVENTID), 1276 CMN_FORMAT_ATTR(occupid, CMN_CONFIG_OCCUPID), 1277 CMN_FORMAT_ATTR(bynodeid, CMN_CONFIG_BYNODEID), 1278 CMN_FORMAT_ATTR(nodeid, CMN_CONFIG_NODEID), 1279 1280 CMN_FORMAT_ATTR(wp_dev_sel, CMN_CONFIG_WP_DEV_SEL), 1281 CMN_FORMAT_ATTR(wp_chn_sel, CMN_CONFIG_WP_CHN_SEL), 1282 CMN_FORMAT_ATTR(wp_grp, CMN_CONFIG_WP_GRP), 1283 CMN_FORMAT_ATTR(wp_exclusive, CMN_CONFIG_WP_EXCLUSIVE), 1284 CMN_FORMAT_ATTR(wp_combine, CMN_CONFIG_WP_COMBINE), 1285 1286 _CMN_FORMAT_ATTR(wp_val, 1, CMN_CONFIG1_WP_VAL), 1287 _CMN_FORMAT_ATTR(wp_mask, 2, CMN_CONFIG2_WP_MASK), 1288 1289 NULL 1290 }; 1291 1292 static const struct attribute_group arm_cmn_format_attrs_group = { 1293 .name = "format", 1294 .attrs = arm_cmn_format_attrs, 1295 }; 1296 1297 static ssize_t arm_cmn_cpumask_show(struct device *dev, 1298 struct device_attribute *attr, char *buf) 1299 { 1300 struct arm_cmn *cmn = to_cmn(dev_get_drvdata(dev)); 1301 1302 return cpumap_print_to_pagebuf(true, buf, cpumask_of(cmn->cpu)); 1303 } 1304 1305 static struct device_attribute arm_cmn_cpumask_attr = 1306 __ATTR(cpumask, 0444, arm_cmn_cpumask_show, NULL); 1307 1308 static ssize_t arm_cmn_identifier_show(struct device *dev, 1309 struct device_attribute *attr, char *buf) 1310 { 1311 struct arm_cmn *cmn = to_cmn(dev_get_drvdata(dev)); 1312 1313 return sysfs_emit(buf, "%03x%02x\n", cmn->part, cmn->rev); 1314 } 1315 1316 static struct device_attribute arm_cmn_identifier_attr = 1317 __ATTR(identifier, 0444, arm_cmn_identifier_show, NULL); 1318 1319 static struct attribute *arm_cmn_other_attrs[] = { 1320 &arm_cmn_cpumask_attr.attr, 1321 &arm_cmn_identifier_attr.attr, 1322 NULL, 1323 }; 1324 1325 static const struct attribute_group arm_cmn_other_attrs_group = { 1326 .attrs = arm_cmn_other_attrs, 1327 }; 1328 1329 static const struct attribute_group *arm_cmn_attr_groups[] = { 1330 &arm_cmn_event_attrs_group, 1331 &arm_cmn_format_attrs_group, 1332 &arm_cmn_other_attrs_group, 1333 NULL 1334 }; 1335 1336 static int arm_cmn_wp_idx(struct perf_event *event) 1337 { 1338 return CMN_EVENT_EVENTID(event) + CMN_EVENT_WP_GRP(event); 1339 } 1340 1341 static u32 arm_cmn_wp_config(struct perf_event *event) 1342 { 1343 u32 config; 1344 u32 dev = CMN_EVENT_WP_DEV_SEL(event); 1345 u32 chn = CMN_EVENT_WP_CHN_SEL(event); 1346 u32 grp = CMN_EVENT_WP_GRP(event); 1347 u32 exc = CMN_EVENT_WP_EXCLUSIVE(event); 1348 u32 combine = CMN_EVENT_WP_COMBINE(event); 1349 bool is_cmn600 = to_cmn(event->pmu)->part == PART_CMN600; 1350 1351 config = FIELD_PREP(CMN_DTM_WPn_CONFIG_WP_DEV_SEL, dev) | 1352 FIELD_PREP(CMN_DTM_WPn_CONFIG_WP_CHN_SEL, chn) | 1353 FIELD_PREP(CMN_DTM_WPn_CONFIG_WP_GRP, grp) | 1354 FIELD_PREP(CMN_DTM_WPn_CONFIG_WP_DEV_SEL2, dev >> 1); 1355 if (exc) 1356 config |= is_cmn600 ? CMN600_WPn_CONFIG_WP_EXCLUSIVE : 1357 CMN_DTM_WPn_CONFIG_WP_EXCLUSIVE; 1358 if (combine && !grp) 1359 config |= is_cmn600 ? CMN600_WPn_CONFIG_WP_COMBINE : 1360 CMN_DTM_WPn_CONFIG_WP_COMBINE; 1361 return config; 1362 } 1363 1364 static void arm_cmn_set_state(struct arm_cmn *cmn, u32 state) 1365 { 1366 if (!cmn->state) 1367 writel_relaxed(0, cmn->dtc[0].base + CMN_DT_PMCR); 1368 cmn->state |= state; 1369 } 1370 1371 static void arm_cmn_clear_state(struct arm_cmn *cmn, u32 state) 1372 { 1373 cmn->state &= ~state; 1374 if (!cmn->state) 1375 writel_relaxed(CMN_DT_PMCR_PMU_EN | CMN_DT_PMCR_OVFL_INTR_EN, 1376 cmn->dtc[0].base + CMN_DT_PMCR); 1377 } 1378 1379 static void arm_cmn_pmu_enable(struct pmu *pmu) 1380 { 1381 arm_cmn_clear_state(to_cmn(pmu), CMN_STATE_DISABLED); 1382 } 1383 1384 static void arm_cmn_pmu_disable(struct pmu *pmu) 1385 { 1386 arm_cmn_set_state(to_cmn(pmu), CMN_STATE_DISABLED); 1387 } 1388 1389 static u64 arm_cmn_read_dtm(struct arm_cmn *cmn, struct arm_cmn_hw_event *hw, 1390 bool snapshot) 1391 { 1392 struct arm_cmn_dtm *dtm = NULL; 1393 struct arm_cmn_node *dn; 1394 unsigned int i, offset, dtm_idx; 1395 u64 reg, count = 0; 1396 1397 offset = snapshot ? CMN_DTM_PMEVCNTSR : CMN_DTM_PMEVCNT; 1398 for_each_hw_dn(hw, dn, i) { 1399 if (dtm != &cmn->dtms[dn->dtm]) { 1400 dtm = &cmn->dtms[dn->dtm] + hw->dtm_offset; 1401 reg = readq_relaxed(dtm->base + offset); 1402 } 1403 dtm_idx = arm_cmn_get_index(hw->dtm_idx, i); 1404 count += (u16)(reg >> (dtm_idx * 16)); 1405 } 1406 return count; 1407 } 1408 1409 static u64 arm_cmn_read_cc(struct arm_cmn_dtc *dtc) 1410 { 1411 u64 val = readq_relaxed(dtc->base + CMN_DT_PMCCNTR); 1412 1413 writeq_relaxed(CMN_CC_INIT, dtc->base + CMN_DT_PMCCNTR); 1414 return (val - CMN_CC_INIT) & ((CMN_CC_INIT << 1) - 1); 1415 } 1416 1417 static u32 arm_cmn_read_counter(struct arm_cmn_dtc *dtc, int idx) 1418 { 1419 u32 val, pmevcnt = CMN_DT_PMEVCNT(idx); 1420 1421 val = readl_relaxed(dtc->base + pmevcnt); 1422 writel_relaxed(CMN_COUNTER_INIT, dtc->base + pmevcnt); 1423 return val - CMN_COUNTER_INIT; 1424 } 1425 1426 static void arm_cmn_init_counter(struct perf_event *event) 1427 { 1428 struct arm_cmn *cmn = to_cmn(event->pmu); 1429 struct arm_cmn_hw_event *hw = to_cmn_hw(event); 1430 unsigned int i, pmevcnt = CMN_DT_PMEVCNT(hw->dtc_idx); 1431 u64 count; 1432 1433 for (i = 0; hw->dtcs_used & (1U << i); i++) { 1434 writel_relaxed(CMN_COUNTER_INIT, cmn->dtc[i].base + pmevcnt); 1435 cmn->dtc[i].counters[hw->dtc_idx] = event; 1436 } 1437 1438 count = arm_cmn_read_dtm(cmn, hw, false); 1439 local64_set(&event->hw.prev_count, count); 1440 } 1441 1442 static void arm_cmn_event_read(struct perf_event *event) 1443 { 1444 struct arm_cmn *cmn = to_cmn(event->pmu); 1445 struct arm_cmn_hw_event *hw = to_cmn_hw(event); 1446 u64 delta, new, prev; 1447 unsigned long flags; 1448 unsigned int i; 1449 1450 if (hw->dtc_idx == CMN_DT_NUM_COUNTERS) { 1451 i = __ffs(hw->dtcs_used); 1452 delta = arm_cmn_read_cc(cmn->dtc + i); 1453 local64_add(delta, &event->count); 1454 return; 1455 } 1456 new = arm_cmn_read_dtm(cmn, hw, false); 1457 prev = local64_xchg(&event->hw.prev_count, new); 1458 1459 delta = new - prev; 1460 1461 local_irq_save(flags); 1462 for (i = 0; hw->dtcs_used & (1U << i); i++) { 1463 new = arm_cmn_read_counter(cmn->dtc + i, hw->dtc_idx); 1464 delta += new << 16; 1465 } 1466 local_irq_restore(flags); 1467 local64_add(delta, &event->count); 1468 } 1469 1470 static int arm_cmn_set_event_sel_hi(struct arm_cmn_node *dn, 1471 enum cmn_filter_select fsel, u8 occupid) 1472 { 1473 u64 reg; 1474 1475 if (fsel == SEL_NONE) 1476 return 0; 1477 1478 if (!dn->occupid[fsel].count) { 1479 dn->occupid[fsel].val = occupid; 1480 reg = FIELD_PREP(CMN__PMU_CBUSY_SNTHROTTLE_SEL, 1481 dn->occupid[SEL_CBUSY_SNTHROTTLE_SEL].val) | 1482 FIELD_PREP(CMN__PMU_SN_HOME_SEL, 1483 dn->occupid[SEL_SN_HOME_SEL].val) | 1484 FIELD_PREP(CMN__PMU_HBT_LBT_SEL, 1485 dn->occupid[SEL_HBT_LBT_SEL].val) | 1486 FIELD_PREP(CMN__PMU_CLASS_OCCUP_ID, 1487 dn->occupid[SEL_CLASS_OCCUP_ID].val) | 1488 FIELD_PREP(CMN__PMU_OCCUP1_ID, 1489 dn->occupid[SEL_OCCUP1ID].val); 1490 writel_relaxed(reg >> 32, dn->pmu_base + CMN_PMU_EVENT_SEL + 4); 1491 } else if (dn->occupid[fsel].val != occupid) { 1492 return -EBUSY; 1493 } 1494 dn->occupid[fsel].count++; 1495 return 0; 1496 } 1497 1498 static void arm_cmn_set_event_sel_lo(struct arm_cmn_node *dn, int dtm_idx, 1499 int eventid, bool wide_sel) 1500 { 1501 if (wide_sel) { 1502 dn->event_w[dtm_idx] = eventid; 1503 writeq_relaxed(le64_to_cpu(dn->event_sel_w), dn->pmu_base + CMN_PMU_EVENT_SEL); 1504 } else { 1505 dn->event[dtm_idx] = eventid; 1506 writel_relaxed(le32_to_cpu(dn->event_sel), dn->pmu_base + CMN_PMU_EVENT_SEL); 1507 } 1508 } 1509 1510 static void arm_cmn_event_start(struct perf_event *event, int flags) 1511 { 1512 struct arm_cmn *cmn = to_cmn(event->pmu); 1513 struct arm_cmn_hw_event *hw = to_cmn_hw(event); 1514 struct arm_cmn_node *dn; 1515 enum cmn_node_type type = CMN_EVENT_TYPE(event); 1516 int i; 1517 1518 if (type == CMN_TYPE_DTC) { 1519 i = __ffs(hw->dtcs_used); 1520 writeq_relaxed(CMN_CC_INIT, cmn->dtc[i].base + CMN_DT_PMCCNTR); 1521 cmn->dtc[i].cc_active = true; 1522 } else if (type == CMN_TYPE_WP) { 1523 int wp_idx = arm_cmn_wp_idx(event); 1524 u64 val = CMN_EVENT_WP_VAL(event); 1525 u64 mask = CMN_EVENT_WP_MASK(event); 1526 1527 for_each_hw_dn(hw, dn, i) { 1528 void __iomem *base = dn->pmu_base + CMN_DTM_OFFSET(hw->dtm_offset); 1529 1530 writeq_relaxed(val, base + CMN_DTM_WPn_VAL(wp_idx)); 1531 writeq_relaxed(mask, base + CMN_DTM_WPn_MASK(wp_idx)); 1532 } 1533 } else for_each_hw_dn(hw, dn, i) { 1534 int dtm_idx = arm_cmn_get_index(hw->dtm_idx, i); 1535 1536 arm_cmn_set_event_sel_lo(dn, dtm_idx, CMN_EVENT_EVENTID(event), 1537 hw->wide_sel); 1538 } 1539 } 1540 1541 static void arm_cmn_event_stop(struct perf_event *event, int flags) 1542 { 1543 struct arm_cmn *cmn = to_cmn(event->pmu); 1544 struct arm_cmn_hw_event *hw = to_cmn_hw(event); 1545 struct arm_cmn_node *dn; 1546 enum cmn_node_type type = CMN_EVENT_TYPE(event); 1547 int i; 1548 1549 if (type == CMN_TYPE_DTC) { 1550 i = __ffs(hw->dtcs_used); 1551 cmn->dtc[i].cc_active = false; 1552 } else if (type == CMN_TYPE_WP) { 1553 int wp_idx = arm_cmn_wp_idx(event); 1554 1555 for_each_hw_dn(hw, dn, i) { 1556 void __iomem *base = dn->pmu_base + CMN_DTM_OFFSET(hw->dtm_offset); 1557 1558 writeq_relaxed(0, base + CMN_DTM_WPn_MASK(wp_idx)); 1559 writeq_relaxed(~0ULL, base + CMN_DTM_WPn_VAL(wp_idx)); 1560 } 1561 } else for_each_hw_dn(hw, dn, i) { 1562 int dtm_idx = arm_cmn_get_index(hw->dtm_idx, i); 1563 1564 arm_cmn_set_event_sel_lo(dn, dtm_idx, 0, hw->wide_sel); 1565 } 1566 1567 arm_cmn_event_read(event); 1568 } 1569 1570 struct arm_cmn_val { 1571 u8 dtm_count[CMN_MAX_DTMS]; 1572 u8 occupid[CMN_MAX_DTMS][SEL_MAX]; 1573 u8 wp[CMN_MAX_DTMS][4]; 1574 int dtc_count; 1575 bool cycles; 1576 }; 1577 1578 static void arm_cmn_val_add_event(struct arm_cmn *cmn, struct arm_cmn_val *val, 1579 struct perf_event *event) 1580 { 1581 struct arm_cmn_hw_event *hw = to_cmn_hw(event); 1582 struct arm_cmn_node *dn; 1583 enum cmn_node_type type; 1584 int i; 1585 1586 if (is_software_event(event)) 1587 return; 1588 1589 type = CMN_EVENT_TYPE(event); 1590 if (type == CMN_TYPE_DTC) { 1591 val->cycles = true; 1592 return; 1593 } 1594 1595 val->dtc_count++; 1596 1597 for_each_hw_dn(hw, dn, i) { 1598 int wp_idx, dtm = dn->dtm, sel = hw->filter_sel; 1599 1600 val->dtm_count[dtm]++; 1601 1602 if (sel > SEL_NONE) 1603 val->occupid[dtm][sel] = CMN_EVENT_OCCUPID(event) + 1; 1604 1605 if (type != CMN_TYPE_WP) 1606 continue; 1607 1608 wp_idx = arm_cmn_wp_idx(event); 1609 val->wp[dtm][wp_idx] = CMN_EVENT_WP_COMBINE(event) + 1; 1610 } 1611 } 1612 1613 static int arm_cmn_validate_group(struct arm_cmn *cmn, struct perf_event *event) 1614 { 1615 struct arm_cmn_hw_event *hw = to_cmn_hw(event); 1616 struct arm_cmn_node *dn; 1617 struct perf_event *sibling, *leader = event->group_leader; 1618 enum cmn_node_type type; 1619 struct arm_cmn_val *val; 1620 int i, ret = -EINVAL; 1621 1622 if (leader == event) 1623 return 0; 1624 1625 if (event->pmu != leader->pmu && !is_software_event(leader)) 1626 return -EINVAL; 1627 1628 val = kzalloc(sizeof(*val), GFP_KERNEL); 1629 if (!val) 1630 return -ENOMEM; 1631 1632 arm_cmn_val_add_event(cmn, val, leader); 1633 for_each_sibling_event(sibling, leader) 1634 arm_cmn_val_add_event(cmn, val, sibling); 1635 1636 type = CMN_EVENT_TYPE(event); 1637 if (type == CMN_TYPE_DTC) { 1638 ret = val->cycles ? -EINVAL : 0; 1639 goto done; 1640 } 1641 1642 if (val->dtc_count == CMN_DT_NUM_COUNTERS) 1643 goto done; 1644 1645 for_each_hw_dn(hw, dn, i) { 1646 int wp_idx, wp_cmb, dtm = dn->dtm, sel = hw->filter_sel; 1647 1648 if (val->dtm_count[dtm] == CMN_DTM_NUM_COUNTERS) 1649 goto done; 1650 1651 if (sel > SEL_NONE && val->occupid[dtm][sel] && 1652 val->occupid[dtm][sel] != CMN_EVENT_OCCUPID(event) + 1) 1653 goto done; 1654 1655 if (type != CMN_TYPE_WP) 1656 continue; 1657 1658 wp_idx = arm_cmn_wp_idx(event); 1659 if (val->wp[dtm][wp_idx]) 1660 goto done; 1661 1662 wp_cmb = val->wp[dtm][wp_idx ^ 1]; 1663 if (wp_cmb && wp_cmb != CMN_EVENT_WP_COMBINE(event) + 1) 1664 goto done; 1665 } 1666 1667 ret = 0; 1668 done: 1669 kfree(val); 1670 return ret; 1671 } 1672 1673 static enum cmn_filter_select arm_cmn_filter_sel(const struct arm_cmn *cmn, 1674 enum cmn_node_type type, 1675 unsigned int eventid) 1676 { 1677 struct arm_cmn_event_attr *e; 1678 enum cmn_model model = arm_cmn_model(cmn); 1679 1680 for (int i = 0; i < ARRAY_SIZE(arm_cmn_event_attrs) - 1; i++) { 1681 e = container_of(arm_cmn_event_attrs[i], typeof(*e), attr.attr); 1682 if (e->model & model && e->type == type && e->eventid == eventid) 1683 return e->fsel; 1684 } 1685 return SEL_NONE; 1686 } 1687 1688 1689 static int arm_cmn_event_init(struct perf_event *event) 1690 { 1691 struct arm_cmn *cmn = to_cmn(event->pmu); 1692 struct arm_cmn_hw_event *hw = to_cmn_hw(event); 1693 struct arm_cmn_node *dn; 1694 enum cmn_node_type type; 1695 bool bynodeid; 1696 u16 nodeid, eventid; 1697 1698 if (event->attr.type != event->pmu->type) 1699 return -ENOENT; 1700 1701 if (is_sampling_event(event) || event->attach_state & PERF_ATTACH_TASK) 1702 return -EINVAL; 1703 1704 event->cpu = cmn->cpu; 1705 if (event->cpu < 0) 1706 return -EINVAL; 1707 1708 type = CMN_EVENT_TYPE(event); 1709 /* DTC events (i.e. cycles) already have everything they need */ 1710 if (type == CMN_TYPE_DTC) 1711 return arm_cmn_validate_group(cmn, event); 1712 1713 eventid = CMN_EVENT_EVENTID(event); 1714 /* For watchpoints we need the actual XP node here */ 1715 if (type == CMN_TYPE_WP) { 1716 type = CMN_TYPE_XP; 1717 /* ...and we need a "real" direction */ 1718 if (eventid != CMN_WP_UP && eventid != CMN_WP_DOWN) 1719 return -EINVAL; 1720 /* ...but the DTM may depend on which port we're watching */ 1721 if (cmn->multi_dtm) 1722 hw->dtm_offset = CMN_EVENT_WP_DEV_SEL(event) / 2; 1723 } else if (type == CMN_TYPE_XP && cmn->part == PART_CMN700) { 1724 hw->wide_sel = true; 1725 } 1726 1727 /* This is sufficiently annoying to recalculate, so cache it */ 1728 hw->filter_sel = arm_cmn_filter_sel(cmn, type, eventid); 1729 1730 bynodeid = CMN_EVENT_BYNODEID(event); 1731 nodeid = CMN_EVENT_NODEID(event); 1732 1733 hw->dn = arm_cmn_node(cmn, type); 1734 if (!hw->dn) 1735 return -EINVAL; 1736 for (dn = hw->dn; dn->type == type; dn++) { 1737 if (bynodeid && dn->id != nodeid) { 1738 hw->dn++; 1739 continue; 1740 } 1741 hw->num_dns++; 1742 if (bynodeid) 1743 break; 1744 } 1745 1746 if (!hw->num_dns) { 1747 struct arm_cmn_nodeid nid = arm_cmn_nid(cmn, nodeid); 1748 1749 dev_dbg(cmn->dev, "invalid node 0x%x (%d,%d,%d,%d) type 0x%x\n", 1750 nodeid, nid.x, nid.y, nid.port, nid.dev, type); 1751 return -EINVAL; 1752 } 1753 /* 1754 * Keep assuming non-cycles events count in all DTC domains; turns out 1755 * it's hard to make a worthwhile optimisation around this, short of 1756 * going all-in with domain-local counter allocation as well. 1757 */ 1758 hw->dtcs_used = (1U << cmn->num_dtcs) - 1; 1759 1760 return arm_cmn_validate_group(cmn, event); 1761 } 1762 1763 static void arm_cmn_event_clear(struct arm_cmn *cmn, struct perf_event *event, 1764 int i) 1765 { 1766 struct arm_cmn_hw_event *hw = to_cmn_hw(event); 1767 enum cmn_node_type type = CMN_EVENT_TYPE(event); 1768 1769 while (i--) { 1770 struct arm_cmn_dtm *dtm = &cmn->dtms[hw->dn[i].dtm] + hw->dtm_offset; 1771 unsigned int dtm_idx = arm_cmn_get_index(hw->dtm_idx, i); 1772 1773 if (type == CMN_TYPE_WP) 1774 dtm->wp_event[arm_cmn_wp_idx(event)] = -1; 1775 1776 if (hw->filter_sel > SEL_NONE) 1777 hw->dn[i].occupid[hw->filter_sel].count--; 1778 1779 dtm->pmu_config_low &= ~CMN__PMEVCNT_PAIRED(dtm_idx); 1780 writel_relaxed(dtm->pmu_config_low, dtm->base + CMN_DTM_PMU_CONFIG); 1781 } 1782 memset(hw->dtm_idx, 0, sizeof(hw->dtm_idx)); 1783 1784 for (i = 0; hw->dtcs_used & (1U << i); i++) 1785 cmn->dtc[i].counters[hw->dtc_idx] = NULL; 1786 } 1787 1788 static int arm_cmn_event_add(struct perf_event *event, int flags) 1789 { 1790 struct arm_cmn *cmn = to_cmn(event->pmu); 1791 struct arm_cmn_hw_event *hw = to_cmn_hw(event); 1792 struct arm_cmn_dtc *dtc = &cmn->dtc[0]; 1793 struct arm_cmn_node *dn; 1794 enum cmn_node_type type = CMN_EVENT_TYPE(event); 1795 unsigned int i, dtc_idx, input_sel; 1796 1797 if (type == CMN_TYPE_DTC) { 1798 i = 0; 1799 while (cmn->dtc[i].cycles) 1800 if (++i == cmn->num_dtcs) 1801 return -ENOSPC; 1802 1803 cmn->dtc[i].cycles = event; 1804 hw->dtc_idx = CMN_DT_NUM_COUNTERS; 1805 hw->dtcs_used = 1U << i; 1806 1807 if (flags & PERF_EF_START) 1808 arm_cmn_event_start(event, 0); 1809 return 0; 1810 } 1811 1812 /* Grab a free global counter first... */ 1813 dtc_idx = 0; 1814 while (dtc->counters[dtc_idx]) 1815 if (++dtc_idx == CMN_DT_NUM_COUNTERS) 1816 return -ENOSPC; 1817 1818 hw->dtc_idx = dtc_idx; 1819 1820 /* ...then the local counters to feed it. */ 1821 for_each_hw_dn(hw, dn, i) { 1822 struct arm_cmn_dtm *dtm = &cmn->dtms[dn->dtm] + hw->dtm_offset; 1823 unsigned int dtm_idx, shift; 1824 u64 reg; 1825 1826 dtm_idx = 0; 1827 while (dtm->pmu_config_low & CMN__PMEVCNT_PAIRED(dtm_idx)) 1828 if (++dtm_idx == CMN_DTM_NUM_COUNTERS) 1829 goto free_dtms; 1830 1831 if (type == CMN_TYPE_XP) { 1832 input_sel = CMN__PMEVCNT0_INPUT_SEL_XP + dtm_idx; 1833 } else if (type == CMN_TYPE_WP) { 1834 int tmp, wp_idx = arm_cmn_wp_idx(event); 1835 u32 cfg = arm_cmn_wp_config(event); 1836 1837 if (dtm->wp_event[wp_idx] >= 0) 1838 goto free_dtms; 1839 1840 tmp = dtm->wp_event[wp_idx ^ 1]; 1841 if (tmp >= 0 && CMN_EVENT_WP_COMBINE(event) != 1842 CMN_EVENT_WP_COMBINE(dtc->counters[tmp])) 1843 goto free_dtms; 1844 1845 input_sel = CMN__PMEVCNT0_INPUT_SEL_WP + wp_idx; 1846 dtm->wp_event[wp_idx] = dtc_idx; 1847 writel_relaxed(cfg, dtm->base + CMN_DTM_WPn_CONFIG(wp_idx)); 1848 } else { 1849 struct arm_cmn_nodeid nid = arm_cmn_nid(cmn, dn->id); 1850 1851 if (cmn->multi_dtm) 1852 nid.port %= 2; 1853 1854 input_sel = CMN__PMEVCNT0_INPUT_SEL_DEV + dtm_idx + 1855 (nid.port << 4) + (nid.dev << 2); 1856 1857 if (arm_cmn_set_event_sel_hi(dn, hw->filter_sel, CMN_EVENT_OCCUPID(event))) 1858 goto free_dtms; 1859 } 1860 1861 arm_cmn_set_index(hw->dtm_idx, i, dtm_idx); 1862 1863 dtm->input_sel[dtm_idx] = input_sel; 1864 shift = CMN__PMEVCNTn_GLOBAL_NUM_SHIFT(dtm_idx); 1865 dtm->pmu_config_low &= ~(CMN__PMEVCNT0_GLOBAL_NUM << shift); 1866 dtm->pmu_config_low |= FIELD_PREP(CMN__PMEVCNT0_GLOBAL_NUM, dtc_idx) << shift; 1867 dtm->pmu_config_low |= CMN__PMEVCNT_PAIRED(dtm_idx); 1868 reg = (u64)le32_to_cpu(dtm->pmu_config_high) << 32 | dtm->pmu_config_low; 1869 writeq_relaxed(reg, dtm->base + CMN_DTM_PMU_CONFIG); 1870 } 1871 1872 /* Go go go! */ 1873 arm_cmn_init_counter(event); 1874 1875 if (flags & PERF_EF_START) 1876 arm_cmn_event_start(event, 0); 1877 1878 return 0; 1879 1880 free_dtms: 1881 arm_cmn_event_clear(cmn, event, i); 1882 return -ENOSPC; 1883 } 1884 1885 static void arm_cmn_event_del(struct perf_event *event, int flags) 1886 { 1887 struct arm_cmn *cmn = to_cmn(event->pmu); 1888 struct arm_cmn_hw_event *hw = to_cmn_hw(event); 1889 enum cmn_node_type type = CMN_EVENT_TYPE(event); 1890 1891 arm_cmn_event_stop(event, PERF_EF_UPDATE); 1892 1893 if (type == CMN_TYPE_DTC) 1894 cmn->dtc[__ffs(hw->dtcs_used)].cycles = NULL; 1895 else 1896 arm_cmn_event_clear(cmn, event, hw->num_dns); 1897 } 1898 1899 /* 1900 * We stop the PMU for both add and read, to avoid skew across DTM counters. 1901 * In theory we could use snapshots to read without stopping, but then it 1902 * becomes a lot trickier to deal with overlow and racing against interrupts, 1903 * plus it seems they don't work properly on some hardware anyway :( 1904 */ 1905 static void arm_cmn_start_txn(struct pmu *pmu, unsigned int flags) 1906 { 1907 arm_cmn_set_state(to_cmn(pmu), CMN_STATE_TXN); 1908 } 1909 1910 static void arm_cmn_end_txn(struct pmu *pmu) 1911 { 1912 arm_cmn_clear_state(to_cmn(pmu), CMN_STATE_TXN); 1913 } 1914 1915 static int arm_cmn_commit_txn(struct pmu *pmu) 1916 { 1917 arm_cmn_end_txn(pmu); 1918 return 0; 1919 } 1920 1921 static void arm_cmn_migrate(struct arm_cmn *cmn, unsigned int cpu) 1922 { 1923 unsigned int i; 1924 1925 perf_pmu_migrate_context(&cmn->pmu, cmn->cpu, cpu); 1926 for (i = 0; i < cmn->num_dtcs; i++) 1927 irq_set_affinity(cmn->dtc[i].irq, cpumask_of(cpu)); 1928 cmn->cpu = cpu; 1929 } 1930 1931 static int arm_cmn_pmu_online_cpu(unsigned int cpu, struct hlist_node *cpuhp_node) 1932 { 1933 struct arm_cmn *cmn; 1934 int node; 1935 1936 cmn = hlist_entry_safe(cpuhp_node, struct arm_cmn, cpuhp_node); 1937 node = dev_to_node(cmn->dev); 1938 if (node != NUMA_NO_NODE && cpu_to_node(cmn->cpu) != node && cpu_to_node(cpu) == node) 1939 arm_cmn_migrate(cmn, cpu); 1940 return 0; 1941 } 1942 1943 static int arm_cmn_pmu_offline_cpu(unsigned int cpu, struct hlist_node *cpuhp_node) 1944 { 1945 struct arm_cmn *cmn; 1946 unsigned int target; 1947 int node; 1948 cpumask_t mask; 1949 1950 cmn = hlist_entry_safe(cpuhp_node, struct arm_cmn, cpuhp_node); 1951 if (cpu != cmn->cpu) 1952 return 0; 1953 1954 node = dev_to_node(cmn->dev); 1955 if (cpumask_and(&mask, cpumask_of_node(node), cpu_online_mask) && 1956 cpumask_andnot(&mask, &mask, cpumask_of(cpu))) 1957 target = cpumask_any(&mask); 1958 else 1959 target = cpumask_any_but(cpu_online_mask, cpu); 1960 if (target < nr_cpu_ids) 1961 arm_cmn_migrate(cmn, target); 1962 return 0; 1963 } 1964 1965 static irqreturn_t arm_cmn_handle_irq(int irq, void *dev_id) 1966 { 1967 struct arm_cmn_dtc *dtc = dev_id; 1968 irqreturn_t ret = IRQ_NONE; 1969 1970 for (;;) { 1971 u32 status = readl_relaxed(dtc->base + CMN_DT_PMOVSR); 1972 u64 delta; 1973 int i; 1974 1975 for (i = 0; i < CMN_DT_NUM_COUNTERS; i++) { 1976 if (status & (1U << i)) { 1977 ret = IRQ_HANDLED; 1978 if (WARN_ON(!dtc->counters[i])) 1979 continue; 1980 delta = (u64)arm_cmn_read_counter(dtc, i) << 16; 1981 local64_add(delta, &dtc->counters[i]->count); 1982 } 1983 } 1984 1985 if (status & (1U << CMN_DT_NUM_COUNTERS)) { 1986 ret = IRQ_HANDLED; 1987 if (dtc->cc_active && !WARN_ON(!dtc->cycles)) { 1988 delta = arm_cmn_read_cc(dtc); 1989 local64_add(delta, &dtc->cycles->count); 1990 } 1991 } 1992 1993 writel_relaxed(status, dtc->base + CMN_DT_PMOVSR_CLR); 1994 1995 if (!dtc->irq_friend) 1996 return ret; 1997 dtc += dtc->irq_friend; 1998 } 1999 } 2000 2001 /* We can reasonably accommodate DTCs of the same CMN sharing IRQs */ 2002 static int arm_cmn_init_irqs(struct arm_cmn *cmn) 2003 { 2004 int i, j, irq, err; 2005 2006 for (i = 0; i < cmn->num_dtcs; i++) { 2007 irq = cmn->dtc[i].irq; 2008 for (j = i; j--; ) { 2009 if (cmn->dtc[j].irq == irq) { 2010 cmn->dtc[j].irq_friend = i - j; 2011 goto next; 2012 } 2013 } 2014 err = devm_request_irq(cmn->dev, irq, arm_cmn_handle_irq, 2015 IRQF_NOBALANCING | IRQF_NO_THREAD, 2016 dev_name(cmn->dev), &cmn->dtc[i]); 2017 if (err) 2018 return err; 2019 2020 err = irq_set_affinity(irq, cpumask_of(cmn->cpu)); 2021 if (err) 2022 return err; 2023 next: 2024 ; /* isn't C great? */ 2025 } 2026 return 0; 2027 } 2028 2029 static void arm_cmn_init_dtm(struct arm_cmn_dtm *dtm, struct arm_cmn_node *xp, int idx) 2030 { 2031 int i; 2032 2033 dtm->base = xp->pmu_base + CMN_DTM_OFFSET(idx); 2034 dtm->pmu_config_low = CMN_DTM_PMU_CONFIG_PMU_EN; 2035 writeq_relaxed(dtm->pmu_config_low, dtm->base + CMN_DTM_PMU_CONFIG); 2036 for (i = 0; i < 4; i++) { 2037 dtm->wp_event[i] = -1; 2038 writeq_relaxed(0, dtm->base + CMN_DTM_WPn_MASK(i)); 2039 writeq_relaxed(~0ULL, dtm->base + CMN_DTM_WPn_VAL(i)); 2040 } 2041 } 2042 2043 static int arm_cmn_init_dtc(struct arm_cmn *cmn, struct arm_cmn_node *dn, int idx) 2044 { 2045 struct arm_cmn_dtc *dtc = cmn->dtc + idx; 2046 2047 dtc->base = dn->pmu_base - CMN_PMU_OFFSET; 2048 dtc->irq = platform_get_irq(to_platform_device(cmn->dev), idx); 2049 if (dtc->irq < 0) 2050 return dtc->irq; 2051 2052 writel_relaxed(CMN_DT_DTC_CTL_DT_EN, dtc->base + CMN_DT_DTC_CTL); 2053 writel_relaxed(CMN_DT_PMCR_PMU_EN | CMN_DT_PMCR_OVFL_INTR_EN, dtc->base + CMN_DT_PMCR); 2054 writeq_relaxed(0, dtc->base + CMN_DT_PMCCNTR); 2055 writel_relaxed(0x1ff, dtc->base + CMN_DT_PMOVSR_CLR); 2056 2057 return 0; 2058 } 2059 2060 static int arm_cmn_node_cmp(const void *a, const void *b) 2061 { 2062 const struct arm_cmn_node *dna = a, *dnb = b; 2063 int cmp; 2064 2065 cmp = dna->type - dnb->type; 2066 if (!cmp) 2067 cmp = dna->logid - dnb->logid; 2068 return cmp; 2069 } 2070 2071 static int arm_cmn_init_dtcs(struct arm_cmn *cmn) 2072 { 2073 struct arm_cmn_node *dn, *xp; 2074 int dtc_idx = 0; 2075 u8 dtcs_present = (1 << cmn->num_dtcs) - 1; 2076 2077 cmn->dtc = devm_kcalloc(cmn->dev, cmn->num_dtcs, sizeof(cmn->dtc[0]), GFP_KERNEL); 2078 if (!cmn->dtc) 2079 return -ENOMEM; 2080 2081 sort(cmn->dns, cmn->num_dns, sizeof(cmn->dns[0]), arm_cmn_node_cmp, NULL); 2082 2083 cmn->xps = arm_cmn_node(cmn, CMN_TYPE_XP); 2084 2085 for (dn = cmn->dns; dn->type; dn++) { 2086 if (dn->type == CMN_TYPE_XP) { 2087 dn->dtc &= dtcs_present; 2088 continue; 2089 } 2090 2091 xp = arm_cmn_node_to_xp(cmn, dn); 2092 dn->dtm = xp->dtm; 2093 if (cmn->multi_dtm) 2094 dn->dtm += arm_cmn_nid(cmn, dn->id).port / 2; 2095 2096 if (dn->type == CMN_TYPE_DTC) { 2097 int err; 2098 /* We do at least know that a DTC's XP must be in that DTC's domain */ 2099 if (xp->dtc == 0xf) 2100 xp->dtc = 1 << dtc_idx; 2101 err = arm_cmn_init_dtc(cmn, dn, dtc_idx++); 2102 if (err) 2103 return err; 2104 } 2105 2106 /* To the PMU, RN-Ds don't add anything over RN-Is, so smoosh them together */ 2107 if (dn->type == CMN_TYPE_RND) 2108 dn->type = CMN_TYPE_RNI; 2109 2110 /* We split the RN-I off already, so let the CCLA part match CCLA events */ 2111 if (dn->type == CMN_TYPE_CCLA_RNI) 2112 dn->type = CMN_TYPE_CCLA; 2113 } 2114 2115 arm_cmn_set_state(cmn, CMN_STATE_DISABLED); 2116 2117 return 0; 2118 } 2119 2120 static void arm_cmn_init_node_info(struct arm_cmn *cmn, u32 offset, struct arm_cmn_node *node) 2121 { 2122 int level; 2123 u64 reg = readq_relaxed(cmn->base + offset + CMN_NODE_INFO); 2124 2125 node->type = FIELD_GET(CMN_NI_NODE_TYPE, reg); 2126 node->id = FIELD_GET(CMN_NI_NODE_ID, reg); 2127 node->logid = FIELD_GET(CMN_NI_LOGICAL_ID, reg); 2128 2129 node->pmu_base = cmn->base + offset + CMN_PMU_OFFSET; 2130 2131 if (node->type == CMN_TYPE_CFG) 2132 level = 0; 2133 else if (node->type == CMN_TYPE_XP) 2134 level = 1; 2135 else 2136 level = 2; 2137 2138 dev_dbg(cmn->dev, "node%*c%#06hx%*ctype:%-#6x id:%-4hd off:%#x\n", 2139 (level * 2) + 1, ' ', node->id, 5 - (level * 2), ' ', 2140 node->type, node->logid, offset); 2141 } 2142 2143 static enum cmn_node_type arm_cmn_subtype(enum cmn_node_type type) 2144 { 2145 switch (type) { 2146 case CMN_TYPE_HNP: 2147 return CMN_TYPE_HNI; 2148 case CMN_TYPE_CCLA_RNI: 2149 return CMN_TYPE_RNI; 2150 default: 2151 return CMN_TYPE_INVALID; 2152 } 2153 } 2154 2155 static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset) 2156 { 2157 void __iomem *cfg_region; 2158 struct arm_cmn_node cfg, *dn; 2159 struct arm_cmn_dtm *dtm; 2160 enum cmn_part part; 2161 u16 child_count, child_poff; 2162 u32 xp_offset[CMN_MAX_XPS]; 2163 u64 reg; 2164 int i, j; 2165 size_t sz; 2166 2167 arm_cmn_init_node_info(cmn, rgn_offset, &cfg); 2168 if (cfg.type != CMN_TYPE_CFG) 2169 return -ENODEV; 2170 2171 cfg_region = cmn->base + rgn_offset; 2172 2173 reg = readq_relaxed(cfg_region + CMN_CFGM_PERIPH_ID_01); 2174 part = FIELD_GET(CMN_CFGM_PID0_PART_0, reg); 2175 part |= FIELD_GET(CMN_CFGM_PID1_PART_1, reg) << 8; 2176 if (cmn->part && cmn->part != part) 2177 dev_warn(cmn->dev, 2178 "Firmware binding mismatch: expected part number 0x%x, found 0x%x\n", 2179 cmn->part, part); 2180 cmn->part = part; 2181 if (!arm_cmn_model(cmn)) 2182 dev_warn(cmn->dev, "Unknown part number: 0x%x\n", part); 2183 2184 reg = readl_relaxed(cfg_region + CMN_CFGM_PERIPH_ID_23); 2185 cmn->rev = FIELD_GET(CMN_CFGM_PID2_REVISION, reg); 2186 2187 reg = readq_relaxed(cfg_region + CMN_CFGM_INFO_GLOBAL); 2188 cmn->multi_dtm = reg & CMN_INFO_MULTIPLE_DTM_EN; 2189 cmn->rsp_vc_num = FIELD_GET(CMN_INFO_RSP_VC_NUM, reg); 2190 cmn->dat_vc_num = FIELD_GET(CMN_INFO_DAT_VC_NUM, reg); 2191 2192 reg = readq_relaxed(cfg_region + CMN_CFGM_INFO_GLOBAL_1); 2193 cmn->snp_vc_num = FIELD_GET(CMN_INFO_SNP_VC_NUM, reg); 2194 cmn->req_vc_num = FIELD_GET(CMN_INFO_REQ_VC_NUM, reg); 2195 2196 reg = readq_relaxed(cfg_region + CMN_CHILD_INFO); 2197 child_count = FIELD_GET(CMN_CI_CHILD_COUNT, reg); 2198 child_poff = FIELD_GET(CMN_CI_CHILD_PTR_OFFSET, reg); 2199 2200 cmn->num_xps = child_count; 2201 cmn->num_dns = cmn->num_xps; 2202 2203 /* Pass 1: visit the XPs, enumerate their children */ 2204 for (i = 0; i < cmn->num_xps; i++) { 2205 reg = readq_relaxed(cfg_region + child_poff + i * 8); 2206 xp_offset[i] = reg & CMN_CHILD_NODE_ADDR; 2207 2208 reg = readq_relaxed(cmn->base + xp_offset[i] + CMN_CHILD_INFO); 2209 cmn->num_dns += FIELD_GET(CMN_CI_CHILD_COUNT, reg); 2210 } 2211 2212 /* 2213 * Some nodes effectively have two separate types, which we'll handle 2214 * by creating one of each internally. For a (very) safe initial upper 2215 * bound, account for double the number of non-XP nodes. 2216 */ 2217 dn = devm_kcalloc(cmn->dev, cmn->num_dns * 2 - cmn->num_xps, 2218 sizeof(*dn), GFP_KERNEL); 2219 if (!dn) 2220 return -ENOMEM; 2221 2222 /* Initial safe upper bound on DTMs for any possible mesh layout */ 2223 i = cmn->num_xps; 2224 if (cmn->multi_dtm) 2225 i += cmn->num_xps + 1; 2226 dtm = devm_kcalloc(cmn->dev, i, sizeof(*dtm), GFP_KERNEL); 2227 if (!dtm) 2228 return -ENOMEM; 2229 2230 /* Pass 2: now we can actually populate the nodes */ 2231 cmn->dns = dn; 2232 cmn->dtms = dtm; 2233 for (i = 0; i < cmn->num_xps; i++) { 2234 void __iomem *xp_region = cmn->base + xp_offset[i]; 2235 struct arm_cmn_node *xp = dn++; 2236 unsigned int xp_ports = 0; 2237 2238 arm_cmn_init_node_info(cmn, xp_offset[i], xp); 2239 /* 2240 * Thanks to the order in which XP logical IDs seem to be 2241 * assigned, we can handily infer the mesh X dimension by 2242 * looking out for the XP at (0,1) without needing to know 2243 * the exact node ID format, which we can later derive. 2244 */ 2245 if (xp->id == (1 << 3)) 2246 cmn->mesh_x = xp->logid; 2247 2248 if (cmn->part == PART_CMN600) 2249 xp->dtc = 0xf; 2250 else 2251 xp->dtc = 1 << readl_relaxed(xp_region + CMN_DTM_UNIT_INFO); 2252 2253 xp->dtm = dtm - cmn->dtms; 2254 arm_cmn_init_dtm(dtm++, xp, 0); 2255 /* 2256 * Keeping track of connected ports will let us filter out 2257 * unnecessary XP events easily. We can also reliably infer the 2258 * "extra device ports" configuration for the node ID format 2259 * from this, since in that case we will see at least one XP 2260 * with port 2 connected, for the HN-D. 2261 */ 2262 for (int p = 0; p < CMN_MAX_PORTS; p++) 2263 if (arm_cmn_device_connect_info(cmn, xp, p)) 2264 xp_ports |= BIT(p); 2265 2266 if (cmn->multi_dtm && (xp_ports & 0xc)) 2267 arm_cmn_init_dtm(dtm++, xp, 1); 2268 if (cmn->multi_dtm && (xp_ports & 0x30)) 2269 arm_cmn_init_dtm(dtm++, xp, 2); 2270 2271 cmn->ports_used |= xp_ports; 2272 2273 reg = readq_relaxed(xp_region + CMN_CHILD_INFO); 2274 child_count = FIELD_GET(CMN_CI_CHILD_COUNT, reg); 2275 child_poff = FIELD_GET(CMN_CI_CHILD_PTR_OFFSET, reg); 2276 2277 for (j = 0; j < child_count; j++) { 2278 reg = readq_relaxed(xp_region + child_poff + j * 8); 2279 /* 2280 * Don't even try to touch anything external, since in general 2281 * we haven't a clue how to power up arbitrary CHI requesters. 2282 * As of CMN-600r1 these could only be RN-SAMs or CXLAs, 2283 * neither of which have any PMU events anyway. 2284 * (Actually, CXLAs do seem to have grown some events in r1p2, 2285 * but they don't go to regular XP DTMs, and they depend on 2286 * secure configuration which we can't easily deal with) 2287 */ 2288 if (reg & CMN_CHILD_NODE_EXTERNAL) { 2289 dev_dbg(cmn->dev, "ignoring external node %llx\n", reg); 2290 continue; 2291 } 2292 2293 arm_cmn_init_node_info(cmn, reg & CMN_CHILD_NODE_ADDR, dn); 2294 2295 switch (dn->type) { 2296 case CMN_TYPE_DTC: 2297 cmn->num_dtcs++; 2298 dn++; 2299 break; 2300 /* These guys have PMU events */ 2301 case CMN_TYPE_DVM: 2302 case CMN_TYPE_HNI: 2303 case CMN_TYPE_HNF: 2304 case CMN_TYPE_SBSX: 2305 case CMN_TYPE_RNI: 2306 case CMN_TYPE_RND: 2307 case CMN_TYPE_MTSX: 2308 case CMN_TYPE_CXRA: 2309 case CMN_TYPE_CXHA: 2310 case CMN_TYPE_CCRA: 2311 case CMN_TYPE_CCHA: 2312 case CMN_TYPE_CCLA: 2313 case CMN_TYPE_HNS: 2314 dn++; 2315 break; 2316 /* Nothing to see here */ 2317 case CMN_TYPE_MPAM_S: 2318 case CMN_TYPE_MPAM_NS: 2319 case CMN_TYPE_RNSAM: 2320 case CMN_TYPE_CXLA: 2321 case CMN_TYPE_HNS_MPAM_S: 2322 case CMN_TYPE_HNS_MPAM_NS: 2323 break; 2324 /* 2325 * Split "optimised" combination nodes into separate 2326 * types for the different event sets. Offsetting the 2327 * base address lets us handle the second pmu_event_sel 2328 * register via the normal mechanism later. 2329 */ 2330 case CMN_TYPE_HNP: 2331 case CMN_TYPE_CCLA_RNI: 2332 dn[1] = dn[0]; 2333 dn[0].pmu_base += CMN_HNP_PMU_EVENT_SEL; 2334 dn[1].type = arm_cmn_subtype(dn->type); 2335 dn += 2; 2336 break; 2337 /* Something has gone horribly wrong */ 2338 default: 2339 dev_err(cmn->dev, "invalid device node type: 0x%x\n", dn->type); 2340 return -ENODEV; 2341 } 2342 } 2343 } 2344 2345 /* Correct for any nodes we added or skipped */ 2346 cmn->num_dns = dn - cmn->dns; 2347 2348 /* Cheeky +1 to help terminate pointer-based iteration later */ 2349 sz = (void *)(dn + 1) - (void *)cmn->dns; 2350 dn = devm_krealloc(cmn->dev, cmn->dns, sz, GFP_KERNEL); 2351 if (dn) 2352 cmn->dns = dn; 2353 2354 sz = (void *)dtm - (void *)cmn->dtms; 2355 dtm = devm_krealloc(cmn->dev, cmn->dtms, sz, GFP_KERNEL); 2356 if (dtm) 2357 cmn->dtms = dtm; 2358 2359 /* 2360 * If mesh_x wasn't set during discovery then we never saw 2361 * an XP at (0,1), thus we must have an Nx1 configuration. 2362 */ 2363 if (!cmn->mesh_x) 2364 cmn->mesh_x = cmn->num_xps; 2365 cmn->mesh_y = cmn->num_xps / cmn->mesh_x; 2366 2367 /* 1x1 config plays havoc with XP event encodings */ 2368 if (cmn->num_xps == 1) 2369 dev_warn(cmn->dev, "1x1 config not fully supported, translate XP events manually\n"); 2370 2371 dev_dbg(cmn->dev, "periph_id part 0x%03x revision %d\n", cmn->part, cmn->rev); 2372 reg = cmn->ports_used; 2373 dev_dbg(cmn->dev, "mesh %dx%d, ID width %d, ports %6pbl%s\n", 2374 cmn->mesh_x, cmn->mesh_y, arm_cmn_xyidbits(cmn), ®, 2375 cmn->multi_dtm ? ", multi-DTM" : ""); 2376 2377 return 0; 2378 } 2379 2380 static int arm_cmn600_acpi_probe(struct platform_device *pdev, struct arm_cmn *cmn) 2381 { 2382 struct resource *cfg, *root; 2383 2384 cfg = platform_get_resource(pdev, IORESOURCE_MEM, 0); 2385 if (!cfg) 2386 return -EINVAL; 2387 2388 root = platform_get_resource(pdev, IORESOURCE_MEM, 1); 2389 if (!root) 2390 return -EINVAL; 2391 2392 if (!resource_contains(cfg, root)) 2393 swap(cfg, root); 2394 /* 2395 * Note that devm_ioremap_resource() is dumb and won't let the platform 2396 * device claim cfg when the ACPI companion device has already claimed 2397 * root within it. But since they *are* already both claimed in the 2398 * appropriate name, we don't really need to do it again here anyway. 2399 */ 2400 cmn->base = devm_ioremap(cmn->dev, cfg->start, resource_size(cfg)); 2401 if (!cmn->base) 2402 return -ENOMEM; 2403 2404 return root->start - cfg->start; 2405 } 2406 2407 static int arm_cmn600_of_probe(struct device_node *np) 2408 { 2409 u32 rootnode; 2410 2411 return of_property_read_u32(np, "arm,root-node", &rootnode) ?: rootnode; 2412 } 2413 2414 static int arm_cmn_probe(struct platform_device *pdev) 2415 { 2416 struct arm_cmn *cmn; 2417 const char *name; 2418 static atomic_t id; 2419 int err, rootnode, this_id; 2420 2421 cmn = devm_kzalloc(&pdev->dev, sizeof(*cmn), GFP_KERNEL); 2422 if (!cmn) 2423 return -ENOMEM; 2424 2425 cmn->dev = &pdev->dev; 2426 cmn->part = (unsigned long)device_get_match_data(cmn->dev); 2427 platform_set_drvdata(pdev, cmn); 2428 2429 if (cmn->part == PART_CMN600 && has_acpi_companion(cmn->dev)) { 2430 rootnode = arm_cmn600_acpi_probe(pdev, cmn); 2431 } else { 2432 rootnode = 0; 2433 cmn->base = devm_platform_ioremap_resource(pdev, 0); 2434 if (IS_ERR(cmn->base)) 2435 return PTR_ERR(cmn->base); 2436 if (cmn->part == PART_CMN600) 2437 rootnode = arm_cmn600_of_probe(pdev->dev.of_node); 2438 } 2439 if (rootnode < 0) 2440 return rootnode; 2441 2442 err = arm_cmn_discover(cmn, rootnode); 2443 if (err) 2444 return err; 2445 2446 err = arm_cmn_init_dtcs(cmn); 2447 if (err) 2448 return err; 2449 2450 err = arm_cmn_init_irqs(cmn); 2451 if (err) 2452 return err; 2453 2454 cmn->cpu = cpumask_local_spread(0, dev_to_node(cmn->dev)); 2455 cmn->pmu = (struct pmu) { 2456 .module = THIS_MODULE, 2457 .attr_groups = arm_cmn_attr_groups, 2458 .capabilities = PERF_PMU_CAP_NO_EXCLUDE, 2459 .task_ctx_nr = perf_invalid_context, 2460 .pmu_enable = arm_cmn_pmu_enable, 2461 .pmu_disable = arm_cmn_pmu_disable, 2462 .event_init = arm_cmn_event_init, 2463 .add = arm_cmn_event_add, 2464 .del = arm_cmn_event_del, 2465 .start = arm_cmn_event_start, 2466 .stop = arm_cmn_event_stop, 2467 .read = arm_cmn_event_read, 2468 .start_txn = arm_cmn_start_txn, 2469 .commit_txn = arm_cmn_commit_txn, 2470 .cancel_txn = arm_cmn_end_txn, 2471 }; 2472 2473 this_id = atomic_fetch_inc(&id); 2474 name = devm_kasprintf(cmn->dev, GFP_KERNEL, "arm_cmn_%d", this_id); 2475 if (!name) 2476 return -ENOMEM; 2477 2478 err = cpuhp_state_add_instance(arm_cmn_hp_state, &cmn->cpuhp_node); 2479 if (err) 2480 return err; 2481 2482 err = perf_pmu_register(&cmn->pmu, name, -1); 2483 if (err) 2484 cpuhp_state_remove_instance_nocalls(arm_cmn_hp_state, &cmn->cpuhp_node); 2485 else 2486 arm_cmn_debugfs_init(cmn, this_id); 2487 2488 return err; 2489 } 2490 2491 static int arm_cmn_remove(struct platform_device *pdev) 2492 { 2493 struct arm_cmn *cmn = platform_get_drvdata(pdev); 2494 2495 writel_relaxed(0, cmn->dtc[0].base + CMN_DT_DTC_CTL); 2496 2497 perf_pmu_unregister(&cmn->pmu); 2498 cpuhp_state_remove_instance_nocalls(arm_cmn_hp_state, &cmn->cpuhp_node); 2499 debugfs_remove(cmn->debug); 2500 return 0; 2501 } 2502 2503 #ifdef CONFIG_OF 2504 static const struct of_device_id arm_cmn_of_match[] = { 2505 { .compatible = "arm,cmn-600", .data = (void *)PART_CMN600 }, 2506 { .compatible = "arm,cmn-650" }, 2507 { .compatible = "arm,cmn-700" }, 2508 { .compatible = "arm,ci-700" }, 2509 {} 2510 }; 2511 MODULE_DEVICE_TABLE(of, arm_cmn_of_match); 2512 #endif 2513 2514 #ifdef CONFIG_ACPI 2515 static const struct acpi_device_id arm_cmn_acpi_match[] = { 2516 { "ARMHC600", PART_CMN600 }, 2517 { "ARMHC650" }, 2518 { "ARMHC700" }, 2519 {} 2520 }; 2521 MODULE_DEVICE_TABLE(acpi, arm_cmn_acpi_match); 2522 #endif 2523 2524 static struct platform_driver arm_cmn_driver = { 2525 .driver = { 2526 .name = "arm-cmn", 2527 .of_match_table = of_match_ptr(arm_cmn_of_match), 2528 .acpi_match_table = ACPI_PTR(arm_cmn_acpi_match), 2529 }, 2530 .probe = arm_cmn_probe, 2531 .remove = arm_cmn_remove, 2532 }; 2533 2534 static int __init arm_cmn_init(void) 2535 { 2536 int ret; 2537 2538 ret = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN, 2539 "perf/arm/cmn:online", 2540 arm_cmn_pmu_online_cpu, 2541 arm_cmn_pmu_offline_cpu); 2542 if (ret < 0) 2543 return ret; 2544 2545 arm_cmn_hp_state = ret; 2546 arm_cmn_debugfs = debugfs_create_dir("arm-cmn", NULL); 2547 2548 ret = platform_driver_register(&arm_cmn_driver); 2549 if (ret) { 2550 cpuhp_remove_multi_state(arm_cmn_hp_state); 2551 debugfs_remove(arm_cmn_debugfs); 2552 } 2553 return ret; 2554 } 2555 2556 static void __exit arm_cmn_exit(void) 2557 { 2558 platform_driver_unregister(&arm_cmn_driver); 2559 cpuhp_remove_multi_state(arm_cmn_hp_state); 2560 debugfs_remove(arm_cmn_debugfs); 2561 } 2562 2563 module_init(arm_cmn_init); 2564 module_exit(arm_cmn_exit); 2565 2566 MODULE_AUTHOR("Robin Murphy <robin.murphy@arm.com>"); 2567 MODULE_DESCRIPTION("Arm CMN-600 PMU driver"); 2568 MODULE_LICENSE("GPL v2"); 2569