1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Contains CPU specific errata definitions 4 * 5 * Copyright (C) 2014 ARM Ltd. 6 */ 7 8 #include <linux/arm-smccc.h> 9 #include <linux/types.h> 10 #include <linux/cpu.h> 11 #include <asm/cpu.h> 12 #include <asm/cputype.h> 13 #include <asm/cpufeature.h> 14 #include <asm/kvm_asm.h> 15 #include <asm/smp_plat.h> 16 17 static u64 target_impl_cpu_num; 18 static struct target_impl_cpu *target_impl_cpus; 19 20 bool cpu_errata_set_target_impl(u64 num, void *impl_cpus) 21 { 22 if (target_impl_cpu_num || !num || !impl_cpus) 23 return false; 24 25 target_impl_cpu_num = num; 26 target_impl_cpus = impl_cpus; 27 return true; 28 } 29 30 static inline bool is_midr_in_range(struct midr_range const *range) 31 { 32 int i; 33 34 if (!target_impl_cpu_num) 35 return midr_is_cpu_model_range(read_cpuid_id(), range->model, 36 range->rv_min, range->rv_max); 37 38 for (i = 0; i < target_impl_cpu_num; i++) { 39 if (midr_is_cpu_model_range(target_impl_cpus[i].midr, 40 range->model, 41 range->rv_min, range->rv_max)) 42 return true; 43 } 44 return false; 45 } 46 47 bool is_midr_in_range_list(struct midr_range const *ranges) 48 { 49 while (ranges->model) 50 if (is_midr_in_range(ranges++)) 51 return true; 52 return false; 53 } 54 EXPORT_SYMBOL_GPL(is_midr_in_range_list); 55 56 static bool __maybe_unused 57 __is_affected_midr_range(const struct arm64_cpu_capabilities *entry, 58 u32 midr, u32 revidr) 59 { 60 const struct arm64_midr_revidr *fix; 61 if (!is_midr_in_range(&entry->midr_range)) 62 return false; 63 64 midr &= MIDR_REVISION_MASK | MIDR_VARIANT_MASK; 65 for (fix = entry->fixed_revs; fix && fix->revidr_mask; fix++) 66 if (midr == fix->midr_rv && (revidr & fix->revidr_mask)) 67 return false; 68 return true; 69 } 70 71 static bool __maybe_unused 72 is_affected_midr_range(const struct arm64_cpu_capabilities *entry, int scope) 73 { 74 int i; 75 76 if (!target_impl_cpu_num) { 77 WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible()); 78 return __is_affected_midr_range(entry, read_cpuid_id(), 79 read_cpuid(REVIDR_EL1)); 80 } 81 82 for (i = 0; i < target_impl_cpu_num; i++) { 83 if (__is_affected_midr_range(entry, target_impl_cpus[i].midr, 84 target_impl_cpus[i].midr)) 85 return true; 86 } 87 return false; 88 } 89 90 static bool __maybe_unused 91 is_affected_midr_range_list(const struct arm64_cpu_capabilities *entry, 92 int scope) 93 { 94 WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible()); 95 return is_midr_in_range_list(entry->midr_range_list); 96 } 97 98 static bool __maybe_unused 99 is_kryo_midr(const struct arm64_cpu_capabilities *entry, int scope) 100 { 101 u32 model; 102 103 WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible()); 104 105 model = read_cpuid_id(); 106 model &= MIDR_IMPLEMENTOR_MASK | (0xf00 << MIDR_PARTNUM_SHIFT) | 107 MIDR_ARCHITECTURE_MASK; 108 109 return model == entry->midr_range.model; 110 } 111 112 static bool 113 has_mismatched_cache_type(const struct arm64_cpu_capabilities *entry, 114 int scope) 115 { 116 u64 mask = arm64_ftr_reg_ctrel0.strict_mask; 117 u64 sys = arm64_ftr_reg_ctrel0.sys_val & mask; 118 u64 ctr_raw, ctr_real; 119 120 WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible()); 121 122 /* 123 * We want to make sure that all the CPUs in the system expose 124 * a consistent CTR_EL0 to make sure that applications behaves 125 * correctly with migration. 126 * 127 * If a CPU has CTR_EL0.IDC but does not advertise it via CTR_EL0 : 128 * 129 * 1) It is safe if the system doesn't support IDC, as CPU anyway 130 * reports IDC = 0, consistent with the rest. 131 * 132 * 2) If the system has IDC, it is still safe as we trap CTR_EL0 133 * access on this CPU via the ARM64_HAS_CACHE_IDC capability. 134 * 135 * So, we need to make sure either the raw CTR_EL0 or the effective 136 * CTR_EL0 matches the system's copy to allow a secondary CPU to boot. 137 */ 138 ctr_raw = read_cpuid_cachetype() & mask; 139 ctr_real = read_cpuid_effective_cachetype() & mask; 140 141 return (ctr_real != sys) && (ctr_raw != sys); 142 } 143 144 static void 145 cpu_enable_trap_ctr_access(const struct arm64_cpu_capabilities *cap) 146 { 147 u64 mask = arm64_ftr_reg_ctrel0.strict_mask; 148 bool enable_uct_trap = false; 149 150 /* Trap CTR_EL0 access on this CPU, only if it has a mismatch */ 151 if ((read_cpuid_cachetype() & mask) != 152 (arm64_ftr_reg_ctrel0.sys_val & mask)) 153 enable_uct_trap = true; 154 155 /* ... or if the system is affected by an erratum */ 156 if (cap->capability == ARM64_WORKAROUND_1542419) 157 enable_uct_trap = true; 158 159 if (enable_uct_trap) 160 sysreg_clear_set(sctlr_el1, SCTLR_EL1_UCT, 0); 161 } 162 163 #ifdef CONFIG_ARM64_ERRATUM_1463225 164 static bool 165 has_cortex_a76_erratum_1463225(const struct arm64_cpu_capabilities *entry, 166 int scope) 167 { 168 return is_affected_midr_range_list(entry, scope) && is_kernel_in_hyp_mode(); 169 } 170 #endif 171 172 static void __maybe_unused 173 cpu_enable_cache_maint_trap(const struct arm64_cpu_capabilities *__unused) 174 { 175 sysreg_clear_set(sctlr_el1, SCTLR_EL1_UCI, 0); 176 } 177 178 #define CAP_MIDR_RANGE(model, v_min, r_min, v_max, r_max) \ 179 .matches = is_affected_midr_range, \ 180 .midr_range = MIDR_RANGE(model, v_min, r_min, v_max, r_max) 181 182 #define CAP_MIDR_ALL_VERSIONS(model) \ 183 .matches = is_affected_midr_range, \ 184 .midr_range = MIDR_ALL_VERSIONS(model) 185 186 #define MIDR_FIXED(rev, revidr_mask) \ 187 .fixed_revs = (struct arm64_midr_revidr[]){{ (rev), (revidr_mask) }, {}} 188 189 #define ERRATA_MIDR_RANGE(model, v_min, r_min, v_max, r_max) \ 190 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, \ 191 CAP_MIDR_RANGE(model, v_min, r_min, v_max, r_max) 192 193 #define CAP_MIDR_RANGE_LIST(list) \ 194 .matches = is_affected_midr_range_list, \ 195 .midr_range_list = list 196 197 /* Errata affecting a range of revisions of given model variant */ 198 #define ERRATA_MIDR_REV_RANGE(m, var, r_min, r_max) \ 199 ERRATA_MIDR_RANGE(m, var, r_min, var, r_max) 200 201 /* Errata affecting a single variant/revision of a model */ 202 #define ERRATA_MIDR_REV(model, var, rev) \ 203 ERRATA_MIDR_RANGE(model, var, rev, var, rev) 204 205 /* Errata affecting all variants/revisions of a given a model */ 206 #define ERRATA_MIDR_ALL_VERSIONS(model) \ 207 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, \ 208 CAP_MIDR_ALL_VERSIONS(model) 209 210 /* Errata affecting a list of midr ranges, with same work around */ 211 #define ERRATA_MIDR_RANGE_LIST(midr_list) \ 212 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, \ 213 CAP_MIDR_RANGE_LIST(midr_list) 214 215 static const __maybe_unused struct midr_range tx2_family_cpus[] = { 216 MIDR_ALL_VERSIONS(MIDR_BRCM_VULCAN), 217 MIDR_ALL_VERSIONS(MIDR_CAVIUM_THUNDERX2), 218 {}, 219 }; 220 221 static bool __maybe_unused 222 needs_tx2_tvm_workaround(const struct arm64_cpu_capabilities *entry, 223 int scope) 224 { 225 int i; 226 227 if (!is_affected_midr_range_list(entry, scope) || 228 !is_hyp_mode_available()) 229 return false; 230 231 for_each_possible_cpu(i) { 232 if (MPIDR_AFFINITY_LEVEL(cpu_logical_map(i), 0) != 0) 233 return true; 234 } 235 236 return false; 237 } 238 239 static bool __maybe_unused 240 has_neoverse_n1_erratum_1542419(const struct arm64_cpu_capabilities *entry, 241 int scope) 242 { 243 bool has_dic = read_cpuid_cachetype() & BIT(CTR_EL0_DIC_SHIFT); 244 const struct midr_range range = MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1); 245 246 WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible()); 247 return is_midr_in_range(&range) && has_dic; 248 } 249 250 static const struct midr_range impdef_pmuv3_cpus[] = { 251 MIDR_ALL_VERSIONS(MIDR_APPLE_M1_ICESTORM), 252 MIDR_ALL_VERSIONS(MIDR_APPLE_M1_FIRESTORM), 253 MIDR_ALL_VERSIONS(MIDR_APPLE_M1_ICESTORM_PRO), 254 MIDR_ALL_VERSIONS(MIDR_APPLE_M1_FIRESTORM_PRO), 255 MIDR_ALL_VERSIONS(MIDR_APPLE_M1_ICESTORM_MAX), 256 MIDR_ALL_VERSIONS(MIDR_APPLE_M1_FIRESTORM_MAX), 257 MIDR_ALL_VERSIONS(MIDR_APPLE_M2_BLIZZARD), 258 MIDR_ALL_VERSIONS(MIDR_APPLE_M2_AVALANCHE), 259 MIDR_ALL_VERSIONS(MIDR_APPLE_M2_BLIZZARD_PRO), 260 MIDR_ALL_VERSIONS(MIDR_APPLE_M2_AVALANCHE_PRO), 261 MIDR_ALL_VERSIONS(MIDR_APPLE_M2_BLIZZARD_MAX), 262 MIDR_ALL_VERSIONS(MIDR_APPLE_M2_AVALANCHE_MAX), 263 {}, 264 }; 265 266 static bool has_impdef_pmuv3(const struct arm64_cpu_capabilities *entry, int scope) 267 { 268 u64 dfr0 = read_sanitised_ftr_reg(SYS_ID_AA64DFR0_EL1); 269 unsigned int pmuver; 270 271 if (!is_kernel_in_hyp_mode()) 272 return false; 273 274 pmuver = cpuid_feature_extract_unsigned_field(dfr0, 275 ID_AA64DFR0_EL1_PMUVer_SHIFT); 276 if (pmuver != ID_AA64DFR0_EL1_PMUVer_IMP_DEF) 277 return false; 278 279 return is_midr_in_range_list(impdef_pmuv3_cpus); 280 } 281 282 static void cpu_enable_impdef_pmuv3_traps(const struct arm64_cpu_capabilities *__unused) 283 { 284 sysreg_clear_set_s(SYS_HACR_EL2, 0, BIT(56)); 285 } 286 287 #ifdef CONFIG_ARM64_WORKAROUND_REPEAT_TLBI 288 static const struct arm64_cpu_capabilities arm64_repeat_tlbi_list[] = { 289 #ifdef CONFIG_QCOM_FALKOR_ERRATUM_1009 290 { 291 ERRATA_MIDR_REV(MIDR_QCOM_FALKOR_V1, 0, 0) 292 }, 293 { 294 .midr_range.model = MIDR_QCOM_KRYO, 295 .matches = is_kryo_midr, 296 }, 297 #endif 298 #ifdef CONFIG_ARM64_ERRATUM_1286807 299 { 300 ERRATA_MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 0), 301 }, 302 { 303 /* Kryo4xx Gold (rcpe to rfpe) => (r0p0 to r3p0) */ 304 ERRATA_MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xe), 305 }, 306 #endif 307 #ifdef CONFIG_ARM64_ERRATUM_2441007 308 { 309 ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A55), 310 }, 311 #endif 312 #ifdef CONFIG_ARM64_ERRATUM_2441009 313 { 314 /* Cortex-A510 r0p0 -> r1p1. Fixed in r1p2 */ 315 ERRATA_MIDR_RANGE(MIDR_CORTEX_A510, 0, 0, 1, 1), 316 }, 317 #endif 318 {}, 319 }; 320 #endif 321 322 #ifdef CONFIG_CAVIUM_ERRATUM_23154 323 static const struct midr_range cavium_erratum_23154_cpus[] = { 324 MIDR_ALL_VERSIONS(MIDR_THUNDERX), 325 MIDR_ALL_VERSIONS(MIDR_THUNDERX_81XX), 326 MIDR_ALL_VERSIONS(MIDR_THUNDERX_83XX), 327 MIDR_ALL_VERSIONS(MIDR_OCTX2_98XX), 328 MIDR_ALL_VERSIONS(MIDR_OCTX2_96XX), 329 MIDR_ALL_VERSIONS(MIDR_OCTX2_95XX), 330 MIDR_ALL_VERSIONS(MIDR_OCTX2_95XXN), 331 MIDR_ALL_VERSIONS(MIDR_OCTX2_95XXMM), 332 MIDR_ALL_VERSIONS(MIDR_OCTX2_95XXO), 333 {}, 334 }; 335 #endif 336 337 #ifdef CONFIG_CAVIUM_ERRATUM_27456 338 static const struct midr_range cavium_erratum_27456_cpus[] = { 339 /* Cavium ThunderX, T88 pass 1.x - 2.1 */ 340 MIDR_RANGE(MIDR_THUNDERX, 0, 0, 1, 1), 341 /* Cavium ThunderX, T81 pass 1.0 */ 342 MIDR_REV(MIDR_THUNDERX_81XX, 0, 0), 343 {}, 344 }; 345 #endif 346 347 #ifdef CONFIG_CAVIUM_ERRATUM_30115 348 static const struct midr_range cavium_erratum_30115_cpus[] = { 349 /* Cavium ThunderX, T88 pass 1.x - 2.2 */ 350 MIDR_RANGE(MIDR_THUNDERX, 0, 0, 1, 2), 351 /* Cavium ThunderX, T81 pass 1.0 - 1.2 */ 352 MIDR_REV_RANGE(MIDR_THUNDERX_81XX, 0, 0, 2), 353 /* Cavium ThunderX, T83 pass 1.0 */ 354 MIDR_REV(MIDR_THUNDERX_83XX, 0, 0), 355 {}, 356 }; 357 #endif 358 359 #ifdef CONFIG_QCOM_FALKOR_ERRATUM_1003 360 static const struct arm64_cpu_capabilities qcom_erratum_1003_list[] = { 361 { 362 ERRATA_MIDR_REV(MIDR_QCOM_FALKOR_V1, 0, 0), 363 }, 364 { 365 .midr_range.model = MIDR_QCOM_KRYO, 366 .matches = is_kryo_midr, 367 }, 368 {}, 369 }; 370 #endif 371 372 #ifdef CONFIG_ARM64_WORKAROUND_CLEAN_CACHE 373 static const struct midr_range workaround_clean_cache[] = { 374 #if defined(CONFIG_ARM64_ERRATUM_826319) || \ 375 defined(CONFIG_ARM64_ERRATUM_827319) || \ 376 defined(CONFIG_ARM64_ERRATUM_824069) 377 /* Cortex-A53 r0p[012]: ARM errata 826319, 827319, 824069 */ 378 MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 2), 379 #endif 380 #ifdef CONFIG_ARM64_ERRATUM_819472 381 /* Cortex-A53 r0p[01] : ARM errata 819472 */ 382 MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 1), 383 #endif 384 {}, 385 }; 386 #endif 387 388 #ifdef CONFIG_ARM64_ERRATUM_1418040 389 /* 390 * - 1188873 affects r0p0 to r2p0 391 * - 1418040 affects r0p0 to r3p1 392 */ 393 static const struct midr_range erratum_1418040_list[] = { 394 /* Cortex-A76 r0p0 to r3p1 */ 395 MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 1), 396 /* Neoverse-N1 r0p0 to r3p1 */ 397 MIDR_RANGE(MIDR_NEOVERSE_N1, 0, 0, 3, 1), 398 /* Kryo4xx Gold (rcpe to rfpf) => (r0p0 to r3p1) */ 399 MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xf), 400 {}, 401 }; 402 #endif 403 404 #ifdef CONFIG_ARM64_ERRATUM_845719 405 static const struct midr_range erratum_845719_list[] = { 406 /* Cortex-A53 r0p[01234] */ 407 MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 4), 408 /* Brahma-B53 r0p[0] */ 409 MIDR_REV(MIDR_BRAHMA_B53, 0, 0), 410 /* Kryo2XX Silver rAp4 */ 411 MIDR_REV(MIDR_QCOM_KRYO_2XX_SILVER, 0xa, 0x4), 412 {}, 413 }; 414 #endif 415 416 #ifdef CONFIG_ARM64_ERRATUM_843419 417 static const struct arm64_cpu_capabilities erratum_843419_list[] = { 418 { 419 /* Cortex-A53 r0p[01234] */ 420 .matches = is_affected_midr_range, 421 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 4), 422 MIDR_FIXED(0x4, BIT(8)), 423 }, 424 { 425 /* Brahma-B53 r0p[0] */ 426 .matches = is_affected_midr_range, 427 ERRATA_MIDR_REV(MIDR_BRAHMA_B53, 0, 0), 428 }, 429 {}, 430 }; 431 #endif 432 433 #ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_AT 434 static const struct midr_range erratum_speculative_at_list[] = { 435 #ifdef CONFIG_ARM64_ERRATUM_1165522 436 /* Cortex A76 r0p0 to r2p0 */ 437 MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 2, 0), 438 #endif 439 #ifdef CONFIG_ARM64_ERRATUM_1319367 440 MIDR_ALL_VERSIONS(MIDR_CORTEX_A57), 441 MIDR_ALL_VERSIONS(MIDR_CORTEX_A72), 442 #endif 443 #ifdef CONFIG_ARM64_ERRATUM_1530923 444 /* Cortex A55 r0p0 to r2p0 */ 445 MIDR_RANGE(MIDR_CORTEX_A55, 0, 0, 2, 0), 446 /* Kryo4xx Silver (rdpe => r1p0) */ 447 MIDR_REV(MIDR_QCOM_KRYO_4XX_SILVER, 0xd, 0xe), 448 #endif 449 {}, 450 }; 451 #endif 452 453 #ifdef CONFIG_ARM64_ERRATUM_1463225 454 static const struct midr_range erratum_1463225[] = { 455 /* Cortex-A76 r0p0 - r3p1 */ 456 MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 1), 457 /* Kryo4xx Gold (rcpe to rfpf) => (r0p0 to r3p1) */ 458 MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xf), 459 {}, 460 }; 461 #endif 462 463 #ifdef CONFIG_ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE 464 static const struct midr_range trbe_overwrite_fill_mode_cpus[] = { 465 #ifdef CONFIG_ARM64_ERRATUM_2139208 466 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2), 467 MIDR_ALL_VERSIONS(MIDR_MICROSOFT_AZURE_COBALT_100), 468 #endif 469 #ifdef CONFIG_ARM64_ERRATUM_2119858 470 MIDR_ALL_VERSIONS(MIDR_CORTEX_A710), 471 MIDR_RANGE(MIDR_CORTEX_X2, 0, 0, 2, 0), 472 #endif 473 {}, 474 }; 475 #endif /* CONFIG_ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE */ 476 477 #ifdef CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE 478 static const struct midr_range tsb_flush_fail_cpus[] = { 479 #ifdef CONFIG_ARM64_ERRATUM_2067961 480 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2), 481 MIDR_ALL_VERSIONS(MIDR_MICROSOFT_AZURE_COBALT_100), 482 #endif 483 #ifdef CONFIG_ARM64_ERRATUM_2054223 484 MIDR_ALL_VERSIONS(MIDR_CORTEX_A710), 485 #endif 486 {}, 487 }; 488 #endif /* CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE */ 489 490 #ifdef CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE 491 static struct midr_range trbe_write_out_of_range_cpus[] = { 492 #ifdef CONFIG_ARM64_ERRATUM_2253138 493 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2), 494 MIDR_ALL_VERSIONS(MIDR_MICROSOFT_AZURE_COBALT_100), 495 #endif 496 #ifdef CONFIG_ARM64_ERRATUM_2224489 497 MIDR_ALL_VERSIONS(MIDR_CORTEX_A710), 498 MIDR_RANGE(MIDR_CORTEX_X2, 0, 0, 2, 0), 499 #endif 500 {}, 501 }; 502 #endif /* CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE */ 503 504 #ifdef CONFIG_ARM64_ERRATUM_1742098 505 static struct midr_range broken_aarch32_aes[] = { 506 MIDR_RANGE(MIDR_CORTEX_A57, 0, 1, 0xf, 0xf), 507 MIDR_ALL_VERSIONS(MIDR_CORTEX_A72), 508 {}, 509 }; 510 #endif /* CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE */ 511 512 #ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD 513 static const struct midr_range erratum_spec_unpriv_load_list[] = { 514 #ifdef CONFIG_ARM64_ERRATUM_3117295 515 MIDR_ALL_VERSIONS(MIDR_CORTEX_A510), 516 #endif 517 #ifdef CONFIG_ARM64_ERRATUM_2966298 518 /* Cortex-A520 r0p0 to r0p1 */ 519 MIDR_REV_RANGE(MIDR_CORTEX_A520, 0, 0, 1), 520 #endif 521 {}, 522 }; 523 #endif 524 525 #ifdef CONFIG_ARM64_ERRATUM_3194386 526 static const struct midr_range erratum_spec_ssbs_list[] = { 527 MIDR_ALL_VERSIONS(MIDR_CORTEX_A76), 528 MIDR_ALL_VERSIONS(MIDR_CORTEX_A77), 529 MIDR_ALL_VERSIONS(MIDR_CORTEX_A78), 530 MIDR_ALL_VERSIONS(MIDR_CORTEX_A78C), 531 MIDR_ALL_VERSIONS(MIDR_CORTEX_A710), 532 MIDR_ALL_VERSIONS(MIDR_CORTEX_A715), 533 MIDR_ALL_VERSIONS(MIDR_CORTEX_A720), 534 MIDR_ALL_VERSIONS(MIDR_CORTEX_A725), 535 MIDR_ALL_VERSIONS(MIDR_CORTEX_X1), 536 MIDR_ALL_VERSIONS(MIDR_CORTEX_X1C), 537 MIDR_ALL_VERSIONS(MIDR_CORTEX_X2), 538 MIDR_ALL_VERSIONS(MIDR_CORTEX_X3), 539 MIDR_ALL_VERSIONS(MIDR_CORTEX_X4), 540 MIDR_ALL_VERSIONS(MIDR_CORTEX_X925), 541 MIDR_ALL_VERSIONS(MIDR_MICROSOFT_AZURE_COBALT_100), 542 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1), 543 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2), 544 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N3), 545 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V1), 546 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V2), 547 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V3), 548 {} 549 }; 550 #endif 551 552 #ifdef CONFIG_AMPERE_ERRATUM_AC03_CPU_38 553 static const struct midr_range erratum_ac03_cpu_38_list[] = { 554 MIDR_ALL_VERSIONS(MIDR_AMPERE1), 555 MIDR_ALL_VERSIONS(MIDR_AMPERE1A), 556 {}, 557 }; 558 #endif 559 560 #ifdef CONFIG_AMPERE_ERRATUM_AC04_CPU_23 561 static const struct midr_range erratum_ac04_cpu_23_list[] = { 562 MIDR_ALL_VERSIONS(MIDR_AMPERE1A), 563 {}, 564 }; 565 #endif 566 567 const struct arm64_cpu_capabilities arm64_errata[] = { 568 #ifdef CONFIG_ARM64_WORKAROUND_CLEAN_CACHE 569 { 570 .desc = "ARM errata 826319, 827319, 824069, or 819472", 571 .capability = ARM64_WORKAROUND_CLEAN_CACHE, 572 ERRATA_MIDR_RANGE_LIST(workaround_clean_cache), 573 .cpu_enable = cpu_enable_cache_maint_trap, 574 }, 575 #endif 576 #ifdef CONFIG_ARM64_ERRATUM_832075 577 { 578 /* Cortex-A57 r0p0 - r1p2 */ 579 .desc = "ARM erratum 832075", 580 .capability = ARM64_WORKAROUND_DEVICE_LOAD_ACQUIRE, 581 ERRATA_MIDR_RANGE(MIDR_CORTEX_A57, 582 0, 0, 583 1, 2), 584 }, 585 #endif 586 #ifdef CONFIG_ARM64_ERRATUM_834220 587 { 588 /* Cortex-A57 r0p0 - r1p2 */ 589 .desc = "ARM erratum 834220", 590 .capability = ARM64_WORKAROUND_834220, 591 ERRATA_MIDR_RANGE(MIDR_CORTEX_A57, 592 0, 0, 593 1, 2), 594 }, 595 #endif 596 #ifdef CONFIG_ARM64_ERRATUM_843419 597 { 598 .desc = "ARM erratum 843419", 599 .capability = ARM64_WORKAROUND_843419, 600 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, 601 .matches = cpucap_multi_entry_cap_matches, 602 .match_list = erratum_843419_list, 603 }, 604 #endif 605 #ifdef CONFIG_ARM64_ERRATUM_845719 606 { 607 .desc = "ARM erratum 845719", 608 .capability = ARM64_WORKAROUND_845719, 609 ERRATA_MIDR_RANGE_LIST(erratum_845719_list), 610 }, 611 #endif 612 #ifdef CONFIG_CAVIUM_ERRATUM_23154 613 { 614 .desc = "Cavium errata 23154 and 38545", 615 .capability = ARM64_WORKAROUND_CAVIUM_23154, 616 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, 617 ERRATA_MIDR_RANGE_LIST(cavium_erratum_23154_cpus), 618 }, 619 #endif 620 #ifdef CONFIG_CAVIUM_ERRATUM_27456 621 { 622 .desc = "Cavium erratum 27456", 623 .capability = ARM64_WORKAROUND_CAVIUM_27456, 624 ERRATA_MIDR_RANGE_LIST(cavium_erratum_27456_cpus), 625 }, 626 #endif 627 #ifdef CONFIG_CAVIUM_ERRATUM_30115 628 { 629 .desc = "Cavium erratum 30115", 630 .capability = ARM64_WORKAROUND_CAVIUM_30115, 631 ERRATA_MIDR_RANGE_LIST(cavium_erratum_30115_cpus), 632 }, 633 #endif 634 { 635 .desc = "Mismatched cache type (CTR_EL0)", 636 .capability = ARM64_MISMATCHED_CACHE_TYPE, 637 .matches = has_mismatched_cache_type, 638 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, 639 .cpu_enable = cpu_enable_trap_ctr_access, 640 }, 641 #ifdef CONFIG_QCOM_FALKOR_ERRATUM_1003 642 { 643 .desc = "Qualcomm Technologies Falkor/Kryo erratum 1003", 644 .capability = ARM64_WORKAROUND_QCOM_FALKOR_E1003, 645 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, 646 .matches = cpucap_multi_entry_cap_matches, 647 .match_list = qcom_erratum_1003_list, 648 }, 649 #endif 650 #ifdef CONFIG_ARM64_WORKAROUND_REPEAT_TLBI 651 { 652 .desc = "Qualcomm erratum 1009, or ARM erratum 1286807, 2441009", 653 .capability = ARM64_WORKAROUND_REPEAT_TLBI, 654 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, 655 .matches = cpucap_multi_entry_cap_matches, 656 .match_list = arm64_repeat_tlbi_list, 657 }, 658 #endif 659 #ifdef CONFIG_ARM64_ERRATUM_858921 660 { 661 /* Cortex-A73 all versions */ 662 .desc = "ARM erratum 858921", 663 .capability = ARM64_WORKAROUND_858921, 664 ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A73), 665 }, 666 #endif 667 { 668 .desc = "Spectre-v2", 669 .capability = ARM64_SPECTRE_V2, 670 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, 671 .matches = has_spectre_v2, 672 .cpu_enable = spectre_v2_enable_mitigation, 673 }, 674 #ifdef CONFIG_RANDOMIZE_BASE 675 { 676 /* Must come after the Spectre-v2 entry */ 677 .desc = "Spectre-v3a", 678 .capability = ARM64_SPECTRE_V3A, 679 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, 680 .matches = has_spectre_v3a, 681 .cpu_enable = spectre_v3a_enable_mitigation, 682 }, 683 #endif 684 { 685 .desc = "Spectre-v4", 686 .capability = ARM64_SPECTRE_V4, 687 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, 688 .matches = has_spectre_v4, 689 .cpu_enable = spectre_v4_enable_mitigation, 690 }, 691 { 692 .desc = "Spectre-BHB", 693 .capability = ARM64_SPECTRE_BHB, 694 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, 695 .matches = is_spectre_bhb_affected, 696 .cpu_enable = spectre_bhb_enable_mitigation, 697 }, 698 #ifdef CONFIG_ARM64_ERRATUM_1418040 699 { 700 .desc = "ARM erratum 1418040", 701 .capability = ARM64_WORKAROUND_1418040, 702 ERRATA_MIDR_RANGE_LIST(erratum_1418040_list), 703 /* 704 * We need to allow affected CPUs to come in late, but 705 * also need the non-affected CPUs to be able to come 706 * in at any point in time. Wonderful. 707 */ 708 .type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE, 709 }, 710 #endif 711 #ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_AT 712 { 713 .desc = "ARM errata 1165522, 1319367, or 1530923", 714 .capability = ARM64_WORKAROUND_SPECULATIVE_AT, 715 ERRATA_MIDR_RANGE_LIST(erratum_speculative_at_list), 716 }, 717 #endif 718 #ifdef CONFIG_ARM64_ERRATUM_1463225 719 { 720 .desc = "ARM erratum 1463225", 721 .capability = ARM64_WORKAROUND_1463225, 722 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, 723 .matches = has_cortex_a76_erratum_1463225, 724 .midr_range_list = erratum_1463225, 725 }, 726 #endif 727 #ifdef CONFIG_CAVIUM_TX2_ERRATUM_219 728 { 729 .desc = "Cavium ThunderX2 erratum 219 (KVM guest sysreg trapping)", 730 .capability = ARM64_WORKAROUND_CAVIUM_TX2_219_TVM, 731 ERRATA_MIDR_RANGE_LIST(tx2_family_cpus), 732 .matches = needs_tx2_tvm_workaround, 733 }, 734 { 735 .desc = "Cavium ThunderX2 erratum 219 (PRFM removal)", 736 .capability = ARM64_WORKAROUND_CAVIUM_TX2_219_PRFM, 737 ERRATA_MIDR_RANGE_LIST(tx2_family_cpus), 738 }, 739 #endif 740 #ifdef CONFIG_ARM64_ERRATUM_1542419 741 { 742 /* we depend on the firmware portion for correctness */ 743 .desc = "ARM erratum 1542419 (kernel portion)", 744 .capability = ARM64_WORKAROUND_1542419, 745 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, 746 .matches = has_neoverse_n1_erratum_1542419, 747 .cpu_enable = cpu_enable_trap_ctr_access, 748 }, 749 #endif 750 #ifdef CONFIG_ARM64_ERRATUM_1508412 751 { 752 /* we depend on the firmware portion for correctness */ 753 .desc = "ARM erratum 1508412 (kernel portion)", 754 .capability = ARM64_WORKAROUND_1508412, 755 ERRATA_MIDR_RANGE(MIDR_CORTEX_A77, 756 0, 0, 757 1, 0), 758 }, 759 #endif 760 #ifdef CONFIG_NVIDIA_CARMEL_CNP_ERRATUM 761 { 762 /* NVIDIA Carmel */ 763 .desc = "NVIDIA Carmel CNP erratum", 764 .capability = ARM64_WORKAROUND_NVIDIA_CARMEL_CNP, 765 ERRATA_MIDR_ALL_VERSIONS(MIDR_NVIDIA_CARMEL), 766 }, 767 #endif 768 #ifdef CONFIG_ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE 769 { 770 /* 771 * The erratum work around is handled within the TRBE 772 * driver and can be applied per-cpu. So, we can allow 773 * a late CPU to come online with this erratum. 774 */ 775 .desc = "ARM erratum 2119858 or 2139208", 776 .capability = ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE, 777 .type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE, 778 CAP_MIDR_RANGE_LIST(trbe_overwrite_fill_mode_cpus), 779 }, 780 #endif 781 #ifdef CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE 782 { 783 .desc = "ARM erratum 2067961 or 2054223", 784 .capability = ARM64_WORKAROUND_TSB_FLUSH_FAILURE, 785 ERRATA_MIDR_RANGE_LIST(tsb_flush_fail_cpus), 786 }, 787 #endif 788 #ifdef CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE 789 { 790 .desc = "ARM erratum 2253138 or 2224489", 791 .capability = ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE, 792 .type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE, 793 CAP_MIDR_RANGE_LIST(trbe_write_out_of_range_cpus), 794 }, 795 #endif 796 #ifdef CONFIG_ARM64_ERRATUM_2645198 797 { 798 .desc = "ARM erratum 2645198", 799 .capability = ARM64_WORKAROUND_2645198, 800 ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A715) 801 }, 802 #endif 803 #ifdef CONFIG_ARM64_ERRATUM_2077057 804 { 805 .desc = "ARM erratum 2077057", 806 .capability = ARM64_WORKAROUND_2077057, 807 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 2), 808 }, 809 #endif 810 #ifdef CONFIG_ARM64_ERRATUM_2064142 811 { 812 .desc = "ARM erratum 2064142", 813 .capability = ARM64_WORKAROUND_2064142, 814 815 /* Cortex-A510 r0p0 - r0p2 */ 816 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 2) 817 }, 818 #endif 819 #ifdef CONFIG_ARM64_ERRATUM_2457168 820 { 821 .desc = "ARM erratum 2457168", 822 .capability = ARM64_WORKAROUND_2457168, 823 .type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE, 824 825 /* Cortex-A510 r0p0-r1p1 */ 826 CAP_MIDR_RANGE(MIDR_CORTEX_A510, 0, 0, 1, 1) 827 }, 828 #endif 829 #ifdef CONFIG_ARM64_ERRATUM_2038923 830 { 831 .desc = "ARM erratum 2038923", 832 .capability = ARM64_WORKAROUND_2038923, 833 834 /* Cortex-A510 r0p0 - r0p2 */ 835 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 2) 836 }, 837 #endif 838 #ifdef CONFIG_ARM64_ERRATUM_1902691 839 { 840 .desc = "ARM erratum 1902691", 841 .capability = ARM64_WORKAROUND_1902691, 842 843 /* Cortex-A510 r0p0 - r0p1 */ 844 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 1) 845 }, 846 #endif 847 #ifdef CONFIG_ARM64_ERRATUM_1742098 848 { 849 .desc = "ARM erratum 1742098", 850 .capability = ARM64_WORKAROUND_1742098, 851 CAP_MIDR_RANGE_LIST(broken_aarch32_aes), 852 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, 853 }, 854 #endif 855 #ifdef CONFIG_ARM64_ERRATUM_2658417 856 { 857 .desc = "ARM erratum 2658417", 858 .capability = ARM64_WORKAROUND_2658417, 859 /* Cortex-A510 r0p0 - r1p1 */ 860 ERRATA_MIDR_RANGE(MIDR_CORTEX_A510, 0, 0, 1, 1), 861 MIDR_FIXED(MIDR_CPU_VAR_REV(1,1), BIT(25)), 862 }, 863 #endif 864 #ifdef CONFIG_ARM64_ERRATUM_3194386 865 { 866 .desc = "SSBS not fully self-synchronizing", 867 .capability = ARM64_WORKAROUND_SPECULATIVE_SSBS, 868 ERRATA_MIDR_RANGE_LIST(erratum_spec_ssbs_list), 869 }, 870 #endif 871 #ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD 872 { 873 .desc = "ARM errata 2966298, 3117295", 874 .capability = ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD, 875 /* Cortex-A520 r0p0 - r0p1 */ 876 ERRATA_MIDR_RANGE_LIST(erratum_spec_unpriv_load_list), 877 }, 878 #endif 879 #ifdef CONFIG_AMPERE_ERRATUM_AC03_CPU_38 880 { 881 .desc = "AmpereOne erratum AC03_CPU_38", 882 .capability = ARM64_WORKAROUND_AMPERE_AC03_CPU_38, 883 ERRATA_MIDR_RANGE_LIST(erratum_ac03_cpu_38_list), 884 }, 885 #endif 886 #ifdef CONFIG_AMPERE_ERRATUM_AC04_CPU_23 887 { 888 .desc = "AmpereOne erratum AC04_CPU_23", 889 .capability = ARM64_WORKAROUND_AMPERE_AC04_CPU_23, 890 ERRATA_MIDR_RANGE_LIST(erratum_ac04_cpu_23_list), 891 }, 892 #endif 893 { 894 .desc = "Broken CNTVOFF_EL2", 895 .capability = ARM64_WORKAROUND_QCOM_ORYON_CNTVOFF, 896 ERRATA_MIDR_RANGE_LIST(((const struct midr_range[]) { 897 MIDR_ALL_VERSIONS(MIDR_QCOM_ORYON_X1), 898 {} 899 })), 900 }, 901 { 902 .desc = "Apple IMPDEF PMUv3 Traps", 903 .capability = ARM64_WORKAROUND_PMUV3_IMPDEF_TRAPS, 904 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, 905 .matches = has_impdef_pmuv3, 906 .cpu_enable = cpu_enable_impdef_pmuv3_traps, 907 }, 908 { 909 } 910 }; 911