arch/arm64/kernel/cpu_errata.c

   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 bool __maybe_unused
  18 is_affected_midr_range(const struct arm64_cpu_capabilities *entry, int scope)
  19 {
  20         const struct arm64_midr_revidr *fix;
  21         u32 midr = read_cpuid_id(), revidr;
  22
  23         WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
  24         if (!is_midr_in_range(midr, &entry->midr_range))
  25                 return false;
  26
  27         midr &= MIDR_REVISION_MASK | MIDR_VARIANT_MASK;
  28         revidr = read_cpuid(REVIDR_EL1);
  29         for (fix = entry->fixed_revs; fix && fix->revidr_mask; fix++)
  30                 if (midr == fix->midr_rv && (revidr & fix->revidr_mask))
  31                         return false;
  32
  33         return true;
  34 }
  35
  36 static bool __maybe_unused
  37 is_affected_midr_range_list(const struct arm64_cpu_capabilities *entry,
  38                             int scope)
  39 {
  40         WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
  41         return is_midr_in_range_list(read_cpuid_id(), entry->midr_range_list);
  42 }
  43
  44 static bool __maybe_unused
  45 is_kryo_midr(const struct arm64_cpu_capabilities *entry, int scope)
  46 {
  47         u32 model;
  48
  49         WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
  50
  51         model = read_cpuid_id();
  52         model &= MIDR_IMPLEMENTOR_MASK | (0xf00 << MIDR_PARTNUM_SHIFT) |
  53                  MIDR_ARCHITECTURE_MASK;
  54
  55         return model == entry->midr_range.model;
  56 }
  57
  58 static bool
  59 has_mismatched_cache_type(const struct arm64_cpu_capabilities *entry,
  60                           int scope)
  61 {
  62         u64 mask = arm64_ftr_reg_ctrel0.strict_mask;
  63         u64 sys = arm64_ftr_reg_ctrel0.sys_val & mask;
  64         u64 ctr_raw, ctr_real;
  65
  66         WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
  67
  68         /*
  69          * We want to make sure that all the CPUs in the system expose
  70          * a consistent CTR_EL0 to make sure that applications behaves
  71          * correctly with migration.
  72          *
  73          * If a CPU has CTR_EL0.IDC but does not advertise it via CTR_EL0 :
  74          *
  75          * 1) It is safe if the system doesn't support IDC, as CPU anyway
  76          *    reports IDC = 0, consistent with the rest.
  77          *
  78          * 2) If the system has IDC, it is still safe as we trap CTR_EL0
  79          *    access on this CPU via the ARM64_HAS_CACHE_IDC capability.
  80          *
  81          * So, we need to make sure either the raw CTR_EL0 or the effective
  82          * CTR_EL0 matches the system's copy to allow a secondary CPU to boot.
  83          */
  84         ctr_raw = read_cpuid_cachetype() & mask;
  85         ctr_real = read_cpuid_effective_cachetype() & mask;
  86
  87         return (ctr_real != sys) && (ctr_raw != sys);
  88 }
  89
  90 static void
  91 cpu_enable_trap_ctr_access(const struct arm64_cpu_capabilities *cap)
  92 {
  93         u64 mask = arm64_ftr_reg_ctrel0.strict_mask;
  94         bool enable_uct_trap = false;
  95
  96         /* Trap CTR_EL0 access on this CPU, only if it has a mismatch */
  97         if ((read_cpuid_cachetype() & mask) !=
  98             (arm64_ftr_reg_ctrel0.sys_val & mask))
  99                 enable_uct_trap = true;
 100
 101         /* ... or if the system is affected by an erratum */
 102         if (cap->capability == ARM64_WORKAROUND_1542419)
 103                 enable_uct_trap = true;
 104
 105         if (enable_uct_trap)
 106                 sysreg_clear_set(sctlr_el1, SCTLR_EL1_UCT, 0);
 107 }
 108
 109 #ifdef CONFIG_ARM64_ERRATUM_1463225
 110 static bool
 111 has_cortex_a76_erratum_1463225(const struct arm64_cpu_capabilities *entry,
 112                                int scope)
 113 {
 114         return is_affected_midr_range_list(entry, scope) && is_kernel_in_hyp_mode();
 115 }
 116 #endif
 117
 118 static void __maybe_unused
 119 cpu_enable_cache_maint_trap(const struct arm64_cpu_capabilities *__unused)
 120 {
 121         sysreg_clear_set(sctlr_el1, SCTLR_EL1_UCI, 0);
 122 }
 123
 124 #define CAP_MIDR_RANGE(model, v_min, r_min, v_max, r_max)       \
 125         .matches = is_affected_midr_range,                      \
 126         .midr_range = MIDR_RANGE(model, v_min, r_min, v_max, r_max)
 127
 128 #define CAP_MIDR_ALL_VERSIONS(model)                                    \
 129         .matches = is_affected_midr_range,                              \
 130         .midr_range = MIDR_ALL_VERSIONS(model)
 131
 132 #define MIDR_FIXED(rev, revidr_mask) \
 133         .fixed_revs = (struct arm64_midr_revidr[]){{ (rev), (revidr_mask) }, {}}
 134
 135 #define ERRATA_MIDR_RANGE(model, v_min, r_min, v_max, r_max)            \
 136         .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,                         \
 137         CAP_MIDR_RANGE(model, v_min, r_min, v_max, r_max)
 138
 139 #define CAP_MIDR_RANGE_LIST(list)                               \
 140         .matches = is_affected_midr_range_list,                 \
 141         .midr_range_list = list
 142
 143 /* Errata affecting a range of revisions of  given model variant */
 144 #define ERRATA_MIDR_REV_RANGE(m, var, r_min, r_max)      \
 145         ERRATA_MIDR_RANGE(m, var, r_min, var, r_max)
 146
 147 /* Errata affecting a single variant/revision of a model */
 148 #define ERRATA_MIDR_REV(model, var, rev)        \
 149         ERRATA_MIDR_RANGE(model, var, rev, var, rev)
 150
 151 /* Errata affecting all variants/revisions of a given a model */
 152 #define ERRATA_MIDR_ALL_VERSIONS(model)                         \
 153         .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,                 \
 154         CAP_MIDR_ALL_VERSIONS(model)
 155
 156 /* Errata affecting a list of midr ranges, with same work around */
 157 #define ERRATA_MIDR_RANGE_LIST(midr_list)                       \
 158         .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,                 \
 159         CAP_MIDR_RANGE_LIST(midr_list)
 160
 161 static const __maybe_unused struct midr_range tx2_family_cpus[] = {
 162         MIDR_ALL_VERSIONS(MIDR_BRCM_VULCAN),
 163         MIDR_ALL_VERSIONS(MIDR_CAVIUM_THUNDERX2),
 164         {},
 165 };
 166
 167 static bool __maybe_unused
 168 needs_tx2_tvm_workaround(const struct arm64_cpu_capabilities *entry,
 169                          int scope)
 170 {
 171         int i;
 172
 173         if (!is_affected_midr_range_list(entry, scope) ||
 174             !is_hyp_mode_available())
 175                 return false;
 176
 177         for_each_possible_cpu(i) {
 178                 if (MPIDR_AFFINITY_LEVEL(cpu_logical_map(i), 0) != 0)
 179                         return true;
 180         }
 181
 182         return false;
 183 }
 184
 185 static bool __maybe_unused
 186 has_neoverse_n1_erratum_1542419(const struct arm64_cpu_capabilities *entry,
 187                                 int scope)
 188 {
 189         u32 midr = read_cpuid_id();
 190         bool has_dic = read_cpuid_cachetype() & BIT(CTR_EL0_DIC_SHIFT);
 191         const struct midr_range range = MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1);
 192
 193         WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
 194         return is_midr_in_range(midr, &range) && has_dic;
 195 }
 196
 197 #ifdef CONFIG_ARM64_WORKAROUND_REPEAT_TLBI
 198 static const struct arm64_cpu_capabilities arm64_repeat_tlbi_list[] = {
 199 #ifdef CONFIG_QCOM_FALKOR_ERRATUM_1009
 200         {
 201                 ERRATA_MIDR_REV(MIDR_QCOM_FALKOR_V1, 0, 0)
 202         },
 203         {
 204                 .midr_range.model = MIDR_QCOM_KRYO,
 205                 .matches = is_kryo_midr,
 206         },
 207 #endif
 208 #ifdef CONFIG_ARM64_ERRATUM_1286807
 209         {
 210                 ERRATA_MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 0),
 211         },
 212         {
 213                 /* Kryo4xx Gold (rcpe to rfpe) => (r0p0 to r3p0) */
 214                 ERRATA_MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xe),
 215         },
 216 #endif
 217 #ifdef CONFIG_ARM64_ERRATUM_2441007
 218         {
 219                 ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A55),
 220         },
 221 #endif
 222 #ifdef CONFIG_ARM64_ERRATUM_2441009
 223         {
 224                 /* Cortex-A510 r0p0 -> r1p1. Fixed in r1p2 */
 225                 ERRATA_MIDR_RANGE(MIDR_CORTEX_A510, 0, 0, 1, 1),
 226         },
 227 #endif
 228         {},
 229 };
 230 #endif
 231
 232 #ifdef CONFIG_CAVIUM_ERRATUM_23154
 233 static const struct midr_range cavium_erratum_23154_cpus[] = {
 234         MIDR_ALL_VERSIONS(MIDR_THUNDERX),
 235         MIDR_ALL_VERSIONS(MIDR_THUNDERX_81XX),
 236         MIDR_ALL_VERSIONS(MIDR_THUNDERX_83XX),
 237         MIDR_ALL_VERSIONS(MIDR_OCTX2_98XX),
 238         MIDR_ALL_VERSIONS(MIDR_OCTX2_96XX),
 239         MIDR_ALL_VERSIONS(MIDR_OCTX2_95XX),
 240         MIDR_ALL_VERSIONS(MIDR_OCTX2_95XXN),
 241         MIDR_ALL_VERSIONS(MIDR_OCTX2_95XXMM),
 242         MIDR_ALL_VERSIONS(MIDR_OCTX2_95XXO),
 243         {},
 244 };
 245 #endif
 246
 247 #ifdef CONFIG_CAVIUM_ERRATUM_27456
 248 const struct midr_range cavium_erratum_27456_cpus[] = {
 249         /* Cavium ThunderX, T88 pass 1.x - 2.1 */
 250         MIDR_RANGE(MIDR_THUNDERX, 0, 0, 1, 1),
 251         /* Cavium ThunderX, T81 pass 1.0 */
 252         MIDR_REV(MIDR_THUNDERX_81XX, 0, 0),
 253         {},
 254 };
 255 #endif
 256
 257 #ifdef CONFIG_CAVIUM_ERRATUM_30115
 258 static const struct midr_range cavium_erratum_30115_cpus[] = {
 259         /* Cavium ThunderX, T88 pass 1.x - 2.2 */
 260         MIDR_RANGE(MIDR_THUNDERX, 0, 0, 1, 2),
 261         /* Cavium ThunderX, T81 pass 1.0 - 1.2 */
 262         MIDR_REV_RANGE(MIDR_THUNDERX_81XX, 0, 0, 2),
 263         /* Cavium ThunderX, T83 pass 1.0 */
 264         MIDR_REV(MIDR_THUNDERX_83XX, 0, 0),
 265         {},
 266 };
 267 #endif
 268
 269 #ifdef CONFIG_QCOM_FALKOR_ERRATUM_1003
 270 static const struct arm64_cpu_capabilities qcom_erratum_1003_list[] = {
 271         {
 272                 ERRATA_MIDR_REV(MIDR_QCOM_FALKOR_V1, 0, 0),
 273         },
 274         {
 275                 .midr_range.model = MIDR_QCOM_KRYO,
 276                 .matches = is_kryo_midr,
 277         },
 278         {},
 279 };
 280 #endif
 281
 282 #ifdef CONFIG_ARM64_WORKAROUND_CLEAN_CACHE
 283 static const struct midr_range workaround_clean_cache[] = {
 284 #if     defined(CONFIG_ARM64_ERRATUM_826319) || \
 285         defined(CONFIG_ARM64_ERRATUM_827319) || \
 286         defined(CONFIG_ARM64_ERRATUM_824069)
 287         /* Cortex-A53 r0p[012]: ARM errata 826319, 827319, 824069 */
 288         MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 2),
 289 #endif
 290 #ifdef  CONFIG_ARM64_ERRATUM_819472
 291         /* Cortex-A53 r0p[01] : ARM errata 819472 */
 292         MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 1),
 293 #endif
 294         {},
 295 };
 296 #endif
 297
 298 #ifdef CONFIG_ARM64_ERRATUM_1418040
 299 /*
 300  * - 1188873 affects r0p0 to r2p0
 301  * - 1418040 affects r0p0 to r3p1
 302  */
 303 static const struct midr_range erratum_1418040_list[] = {
 304         /* Cortex-A76 r0p0 to r3p1 */
 305         MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 1),
 306         /* Neoverse-N1 r0p0 to r3p1 */
 307         MIDR_RANGE(MIDR_NEOVERSE_N1, 0, 0, 3, 1),
 308         /* Kryo4xx Gold (rcpe to rfpf) => (r0p0 to r3p1) */
 309         MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xf),
 310         {},
 311 };
 312 #endif
 313
 314 #ifdef CONFIG_ARM64_ERRATUM_845719
 315 static const struct midr_range erratum_845719_list[] = {
 316         /* Cortex-A53 r0p[01234] */
 317         MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 4),
 318         /* Brahma-B53 r0p[0] */
 319         MIDR_REV(MIDR_BRAHMA_B53, 0, 0),
 320         /* Kryo2XX Silver rAp4 */
 321         MIDR_REV(MIDR_QCOM_KRYO_2XX_SILVER, 0xa, 0x4),
 322         {},
 323 };
 324 #endif
 325
 326 #ifdef CONFIG_ARM64_ERRATUM_843419
 327 static const struct arm64_cpu_capabilities erratum_843419_list[] = {
 328         {
 329                 /* Cortex-A53 r0p[01234] */
 330                 .matches = is_affected_midr_range,
 331                 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 4),
 332                 MIDR_FIXED(0x4, BIT(8)),
 333         },
 334         {
 335                 /* Brahma-B53 r0p[0] */
 336                 .matches = is_affected_midr_range,
 337                 ERRATA_MIDR_REV(MIDR_BRAHMA_B53, 0, 0),
 338         },
 339         {},
 340 };
 341 #endif
 342
 343 #ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_AT
 344 static const struct midr_range erratum_speculative_at_list[] = {
 345 #ifdef CONFIG_ARM64_ERRATUM_1165522
 346         /* Cortex A76 r0p0 to r2p0 */
 347         MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 2, 0),
 348 #endif
 349 #ifdef CONFIG_ARM64_ERRATUM_1319367
 350         MIDR_ALL_VERSIONS(MIDR_CORTEX_A57),
 351         MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
 352 #endif
 353 #ifdef CONFIG_ARM64_ERRATUM_1530923
 354         /* Cortex A55 r0p0 to r2p0 */
 355         MIDR_RANGE(MIDR_CORTEX_A55, 0, 0, 2, 0),
 356         /* Kryo4xx Silver (rdpe => r1p0) */
 357         MIDR_REV(MIDR_QCOM_KRYO_4XX_SILVER, 0xd, 0xe),
 358 #endif
 359         {},
 360 };
 361 #endif
 362
 363 #ifdef CONFIG_ARM64_ERRATUM_1463225
 364 static const struct midr_range erratum_1463225[] = {
 365         /* Cortex-A76 r0p0 - r3p1 */
 366         MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 1),
 367         /* Kryo4xx Gold (rcpe to rfpf) => (r0p0 to r3p1) */
 368         MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xf),
 369         {},
 370 };
 371 #endif
 372
 373 #ifdef CONFIG_ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE
 374 static const struct midr_range trbe_overwrite_fill_mode_cpus[] = {
 375 #ifdef CONFIG_ARM64_ERRATUM_2139208
 376         MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
 377 #endif
 378 #ifdef CONFIG_ARM64_ERRATUM_2119858
 379         MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
 380         MIDR_RANGE(MIDR_CORTEX_X2, 0, 0, 2, 0),
 381 #endif
 382         {},
 383 };
 384 #endif  /* CONFIG_ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE */
 385
 386 #ifdef CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE
 387 static const struct midr_range tsb_flush_fail_cpus[] = {
 388 #ifdef CONFIG_ARM64_ERRATUM_2067961
 389         MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
 390 #endif
 391 #ifdef CONFIG_ARM64_ERRATUM_2054223
 392         MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
 393 #endif
 394         {},
 395 };
 396 #endif  /* CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE */
 397
 398 #ifdef CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE
 399 static struct midr_range trbe_write_out_of_range_cpus[] = {
 400 #ifdef CONFIG_ARM64_ERRATUM_2253138
 401         MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
 402 #endif
 403 #ifdef CONFIG_ARM64_ERRATUM_2224489
 404         MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
 405         MIDR_RANGE(MIDR_CORTEX_X2, 0, 0, 2, 0),
 406 #endif
 407         {},
 408 };
 409 #endif /* CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE */
 410
 411 #ifdef CONFIG_ARM64_ERRATUM_1742098
 412 static struct midr_range broken_aarch32_aes[] = {
 413         MIDR_RANGE(MIDR_CORTEX_A57, 0, 1, 0xf, 0xf),
 414         MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
 415         {},
 416 };
 417 #endif /* CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE */
 418
 419 const struct arm64_cpu_capabilities arm64_errata[] = {
 420 #ifdef CONFIG_ARM64_WORKAROUND_CLEAN_CACHE
 421         {
 422                 .desc = "ARM errata 826319, 827319, 824069, or 819472",
 423                 .capability = ARM64_WORKAROUND_CLEAN_CACHE,
 424                 ERRATA_MIDR_RANGE_LIST(workaround_clean_cache),
 425                 .cpu_enable = cpu_enable_cache_maint_trap,
 426         },
 427 #endif
 428 #ifdef CONFIG_ARM64_ERRATUM_832075
 429         {
 430         /* Cortex-A57 r0p0 - r1p2 */
 431                 .desc = "ARM erratum 832075",
 432                 .capability = ARM64_WORKAROUND_DEVICE_LOAD_ACQUIRE,
 433                 ERRATA_MIDR_RANGE(MIDR_CORTEX_A57,
 434                                   0, 0,
 435                                   1, 2),
 436         },
 437 #endif
 438 #ifdef CONFIG_ARM64_ERRATUM_834220
 439         {
 440         /* Cortex-A57 r0p0 - r1p2 */
 441                 .desc = "ARM erratum 834220",
 442                 .capability = ARM64_WORKAROUND_834220,
 443                 ERRATA_MIDR_RANGE(MIDR_CORTEX_A57,
 444                                   0, 0,
 445                                   1, 2),
 446         },
 447 #endif
 448 #ifdef CONFIG_ARM64_ERRATUM_843419
 449         {
 450                 .desc = "ARM erratum 843419",
 451                 .capability = ARM64_WORKAROUND_843419,
 452                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
 453                 .matches = cpucap_multi_entry_cap_matches,
 454                 .match_list = erratum_843419_list,
 455         },
 456 #endif
 457 #ifdef CONFIG_ARM64_ERRATUM_845719
 458         {
 459                 .desc = "ARM erratum 845719",
 460                 .capability = ARM64_WORKAROUND_845719,
 461                 ERRATA_MIDR_RANGE_LIST(erratum_845719_list),
 462         },
 463 #endif
 464 #ifdef CONFIG_CAVIUM_ERRATUM_23154
 465         {
 466                 .desc = "Cavium errata 23154 and 38545",
 467                 .capability = ARM64_WORKAROUND_CAVIUM_23154,
 468                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
 469                 ERRATA_MIDR_RANGE_LIST(cavium_erratum_23154_cpus),
 470         },
 471 #endif
 472 #ifdef CONFIG_CAVIUM_ERRATUM_27456
 473         {
 474                 .desc = "Cavium erratum 27456",
 475                 .capability = ARM64_WORKAROUND_CAVIUM_27456,
 476                 ERRATA_MIDR_RANGE_LIST(cavium_erratum_27456_cpus),
 477         },
 478 #endif
 479 #ifdef CONFIG_CAVIUM_ERRATUM_30115
 480         {
 481                 .desc = "Cavium erratum 30115",
 482                 .capability = ARM64_WORKAROUND_CAVIUM_30115,
 483                 ERRATA_MIDR_RANGE_LIST(cavium_erratum_30115_cpus),
 484         },
 485 #endif
 486         {
 487                 .desc = "Mismatched cache type (CTR_EL0)",
 488                 .capability = ARM64_MISMATCHED_CACHE_TYPE,
 489                 .matches = has_mismatched_cache_type,
 490                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
 491                 .cpu_enable = cpu_enable_trap_ctr_access,
 492         },
 493 #ifdef CONFIG_QCOM_FALKOR_ERRATUM_1003
 494         {
 495                 .desc = "Qualcomm Technologies Falkor/Kryo erratum 1003",
 496                 .capability = ARM64_WORKAROUND_QCOM_FALKOR_E1003,
 497                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
 498                 .matches = cpucap_multi_entry_cap_matches,
 499                 .match_list = qcom_erratum_1003_list,
 500         },
 501 #endif
 502 #ifdef CONFIG_ARM64_WORKAROUND_REPEAT_TLBI
 503         {
 504                 .desc = "Qualcomm erratum 1009, or ARM erratum 1286807, 2441009",
 505                 .capability = ARM64_WORKAROUND_REPEAT_TLBI,
 506                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
 507                 .matches = cpucap_multi_entry_cap_matches,
 508                 .match_list = arm64_repeat_tlbi_list,
 509         },
 510 #endif
 511 #ifdef CONFIG_ARM64_ERRATUM_858921
 512         {
 513         /* Cortex-A73 all versions */
 514                 .desc = "ARM erratum 858921",
 515                 .capability = ARM64_WORKAROUND_858921,
 516                 ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
 517         },
 518 #endif
 519         {
 520                 .desc = "Spectre-v2",
 521                 .capability = ARM64_SPECTRE_V2,
 522                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
 523                 .matches = has_spectre_v2,
 524                 .cpu_enable = spectre_v2_enable_mitigation,
 525         },
 526 #ifdef CONFIG_RANDOMIZE_BASE
 527         {
 528         /* Must come after the Spectre-v2 entry */
 529                 .desc = "Spectre-v3a",
 530                 .capability = ARM64_SPECTRE_V3A,
 531                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
 532                 .matches = has_spectre_v3a,
 533                 .cpu_enable = spectre_v3a_enable_mitigation,
 534         },
 535 #endif
 536         {
 537                 .desc = "Spectre-v4",
 538                 .capability = ARM64_SPECTRE_V4,
 539                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
 540                 .matches = has_spectre_v4,
 541                 .cpu_enable = spectre_v4_enable_mitigation,
 542         },
 543         {
 544                 .desc = "Spectre-BHB",
 545                 .capability = ARM64_SPECTRE_BHB,
 546                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
 547                 .matches = is_spectre_bhb_affected,
 548                 .cpu_enable = spectre_bhb_enable_mitigation,
 549         },
 550 #ifdef CONFIG_ARM64_ERRATUM_1418040
 551         {
 552                 .desc = "ARM erratum 1418040",
 553                 .capability = ARM64_WORKAROUND_1418040,
 554                 ERRATA_MIDR_RANGE_LIST(erratum_1418040_list),
 555                 /*
 556                  * We need to allow affected CPUs to come in late, but
 557                  * also need the non-affected CPUs to be able to come
 558                  * in at any point in time. Wonderful.
 559                  */
 560                 .type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE,
 561         },
 562 #endif
 563 #ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_AT
 564         {
 565                 .desc = "ARM errata 1165522, 1319367, or 1530923",
 566                 .capability = ARM64_WORKAROUND_SPECULATIVE_AT,
 567                 ERRATA_MIDR_RANGE_LIST(erratum_speculative_at_list),
 568         },
 569 #endif
 570 #ifdef CONFIG_ARM64_ERRATUM_1463225
 571         {
 572                 .desc = "ARM erratum 1463225",
 573                 .capability = ARM64_WORKAROUND_1463225,
 574                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
 575                 .matches = has_cortex_a76_erratum_1463225,
 576                 .midr_range_list = erratum_1463225,
 577         },
 578 #endif
 579 #ifdef CONFIG_CAVIUM_TX2_ERRATUM_219
 580         {
 581                 .desc = "Cavium ThunderX2 erratum 219 (KVM guest sysreg trapping)",
 582                 .capability = ARM64_WORKAROUND_CAVIUM_TX2_219_TVM,
 583                 ERRATA_MIDR_RANGE_LIST(tx2_family_cpus),
 584                 .matches = needs_tx2_tvm_workaround,
 585         },
 586         {
 587                 .desc = "Cavium ThunderX2 erratum 219 (PRFM removal)",
 588                 .capability = ARM64_WORKAROUND_CAVIUM_TX2_219_PRFM,
 589                 ERRATA_MIDR_RANGE_LIST(tx2_family_cpus),
 590         },
 591 #endif
 592 #ifdef CONFIG_ARM64_ERRATUM_1542419
 593         {
 594                 /* we depend on the firmware portion for correctness */
 595                 .desc = "ARM erratum 1542419 (kernel portion)",
 596                 .capability = ARM64_WORKAROUND_1542419,
 597                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
 598                 .matches = has_neoverse_n1_erratum_1542419,
 599                 .cpu_enable = cpu_enable_trap_ctr_access,
 600         },
 601 #endif
 602 #ifdef CONFIG_ARM64_ERRATUM_1508412
 603         {
 604                 /* we depend on the firmware portion for correctness */
 605                 .desc = "ARM erratum 1508412 (kernel portion)",
 606                 .capability = ARM64_WORKAROUND_1508412,
 607                 ERRATA_MIDR_RANGE(MIDR_CORTEX_A77,
 608                                   0, 0,
 609                                   1, 0),
 610         },
 611 #endif
 612 #ifdef CONFIG_NVIDIA_CARMEL_CNP_ERRATUM
 613         {
 614                 /* NVIDIA Carmel */
 615                 .desc = "NVIDIA Carmel CNP erratum",
 616                 .capability = ARM64_WORKAROUND_NVIDIA_CARMEL_CNP,
 617                 ERRATA_MIDR_ALL_VERSIONS(MIDR_NVIDIA_CARMEL),
 618         },
 619 #endif
 620 #ifdef CONFIG_ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE
 621         {
 622                 /*
 623                  * The erratum work around is handled within the TRBE
 624                  * driver and can be applied per-cpu. So, we can allow
 625                  * a late CPU to come online with this erratum.
 626                  */
 627                 .desc = "ARM erratum 2119858 or 2139208",
 628                 .capability = ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE,
 629                 .type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE,
 630                 CAP_MIDR_RANGE_LIST(trbe_overwrite_fill_mode_cpus),
 631         },
 632 #endif
 633 #ifdef CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE
 634         {
 635                 .desc = "ARM erratum 2067961 or 2054223",
 636                 .capability = ARM64_WORKAROUND_TSB_FLUSH_FAILURE,
 637                 ERRATA_MIDR_RANGE_LIST(tsb_flush_fail_cpus),
 638         },
 639 #endif
 640 #ifdef CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE
 641         {
 642                 .desc = "ARM erratum 2253138 or 2224489",
 643                 .capability = ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE,
 644                 .type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE,
 645                 CAP_MIDR_RANGE_LIST(trbe_write_out_of_range_cpus),
 646         },
 647 #endif
 648 #ifdef CONFIG_ARM64_ERRATUM_2645198
 649         {
 650                 .desc = "ARM erratum 2645198",
 651                 .capability = ARM64_WORKAROUND_2645198,
 652                 ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A715)
 653         },
 654 #endif
 655 #ifdef CONFIG_ARM64_ERRATUM_2077057
 656         {
 657                 .desc = "ARM erratum 2077057",
 658                 .capability = ARM64_WORKAROUND_2077057,
 659                 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 2),
 660         },
 661 #endif
 662 #ifdef CONFIG_ARM64_ERRATUM_2064142
 663         {
 664                 .desc = "ARM erratum 2064142",
 665                 .capability = ARM64_WORKAROUND_2064142,
 666
 667                 /* Cortex-A510 r0p0 - r0p2 */
 668                 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 2)
 669         },
 670 #endif
 671 #ifdef CONFIG_ARM64_ERRATUM_2457168
 672         {
 673                 .desc = "ARM erratum 2457168",
 674                 .capability = ARM64_WORKAROUND_2457168,
 675                 .type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE,
 676
 677                 /* Cortex-A510 r0p0-r1p1 */
 678                 CAP_MIDR_RANGE(MIDR_CORTEX_A510, 0, 0, 1, 1)
 679         },
 680 #endif
 681 #ifdef CONFIG_ARM64_ERRATUM_2038923
 682         {
 683                 .desc = "ARM erratum 2038923",
 684                 .capability = ARM64_WORKAROUND_2038923,
 685
 686                 /* Cortex-A510 r0p0 - r0p2 */
 687                 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 2)
 688         },
 689 #endif
 690 #ifdef CONFIG_ARM64_ERRATUM_1902691
 691         {
 692                 .desc = "ARM erratum 1902691",
 693                 .capability = ARM64_WORKAROUND_1902691,
 694
 695                 /* Cortex-A510 r0p0 - r0p1 */
 696                 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 1)
 697         },
 698 #endif
 699 #ifdef CONFIG_ARM64_ERRATUM_1742098
 700         {
 701                 .desc = "ARM erratum 1742098",
 702                 .capability = ARM64_WORKAROUND_1742098,
 703                 CAP_MIDR_RANGE_LIST(broken_aarch32_aes),
 704                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
 705         },
 706 #endif
 707 #ifdef CONFIG_ARM64_ERRATUM_2658417
 708         {
 709                 .desc = "ARM erratum 2658417",
 710                 .capability = ARM64_WORKAROUND_2658417,
 711                 /* Cortex-A510 r0p0 - r1p1 */
 712                 ERRATA_MIDR_RANGE(MIDR_CORTEX_A510, 0, 0, 1, 1),
 713                 MIDR_FIXED(MIDR_CPU_VAR_REV(1,1), BIT(25)),
 714         },
 715 #endif
 716 #ifdef CONFIG_ARM64_ERRATUM_2966298
 717         {
 718                 .desc = "ARM erratum 2966298",
 719                 .capability = ARM64_WORKAROUND_2966298,
 720                 /* Cortex-A520 r0p0 - r0p1 */
 721                 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A520, 0, 0, 1),
 722         },
 723 #endif
 724 #ifdef CONFIG_AMPERE_ERRATUM_AC03_CPU_38
 725         {
 726                 .desc = "AmpereOne erratum AC03_CPU_38",
 727                 .capability = ARM64_WORKAROUND_AMPERE_AC03_CPU_38,
 728                 ERRATA_MIDR_ALL_VERSIONS(MIDR_AMPERE1),
 729         },
 730 #endif
 731         {
 732         }
 733 };