Merge tag 'phy-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux...
[linux-2.6-microblaze.git] / 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_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 #endif
213         {},
214 };
215 #endif
216
217 #ifdef CONFIG_CAVIUM_ERRATUM_27456
218 const struct midr_range cavium_erratum_27456_cpus[] = {
219         /* Cavium ThunderX, T88 pass 1.x - 2.1 */
220         MIDR_RANGE(MIDR_THUNDERX, 0, 0, 1, 1),
221         /* Cavium ThunderX, T81 pass 1.0 */
222         MIDR_REV(MIDR_THUNDERX_81XX, 0, 0),
223         {},
224 };
225 #endif
226
227 #ifdef CONFIG_CAVIUM_ERRATUM_30115
228 static const struct midr_range cavium_erratum_30115_cpus[] = {
229         /* Cavium ThunderX, T88 pass 1.x - 2.2 */
230         MIDR_RANGE(MIDR_THUNDERX, 0, 0, 1, 2),
231         /* Cavium ThunderX, T81 pass 1.0 - 1.2 */
232         MIDR_REV_RANGE(MIDR_THUNDERX_81XX, 0, 0, 2),
233         /* Cavium ThunderX, T83 pass 1.0 */
234         MIDR_REV(MIDR_THUNDERX_83XX, 0, 0),
235         {},
236 };
237 #endif
238
239 #ifdef CONFIG_QCOM_FALKOR_ERRATUM_1003
240 static const struct arm64_cpu_capabilities qcom_erratum_1003_list[] = {
241         {
242                 ERRATA_MIDR_REV(MIDR_QCOM_FALKOR_V1, 0, 0),
243         },
244         {
245                 .midr_range.model = MIDR_QCOM_KRYO,
246                 .matches = is_kryo_midr,
247         },
248         {},
249 };
250 #endif
251
252 #ifdef CONFIG_ARM64_WORKAROUND_CLEAN_CACHE
253 static const struct midr_range workaround_clean_cache[] = {
254 #if     defined(CONFIG_ARM64_ERRATUM_826319) || \
255         defined(CONFIG_ARM64_ERRATUM_827319) || \
256         defined(CONFIG_ARM64_ERRATUM_824069)
257         /* Cortex-A53 r0p[012]: ARM errata 826319, 827319, 824069 */
258         MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 2),
259 #endif
260 #ifdef  CONFIG_ARM64_ERRATUM_819472
261         /* Cortex-A53 r0p[01] : ARM errata 819472 */
262         MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 1),
263 #endif
264         {},
265 };
266 #endif
267
268 #ifdef CONFIG_ARM64_ERRATUM_1418040
269 /*
270  * - 1188873 affects r0p0 to r2p0
271  * - 1418040 affects r0p0 to r3p1
272  */
273 static const struct midr_range erratum_1418040_list[] = {
274         /* Cortex-A76 r0p0 to r3p1 */
275         MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 1),
276         /* Neoverse-N1 r0p0 to r3p1 */
277         MIDR_RANGE(MIDR_NEOVERSE_N1, 0, 0, 3, 1),
278         /* Kryo4xx Gold (rcpe to rfpf) => (r0p0 to r3p1) */
279         MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xf),
280         {},
281 };
282 #endif
283
284 #ifdef CONFIG_ARM64_ERRATUM_845719
285 static const struct midr_range erratum_845719_list[] = {
286         /* Cortex-A53 r0p[01234] */
287         MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 4),
288         /* Brahma-B53 r0p[0] */
289         MIDR_REV(MIDR_BRAHMA_B53, 0, 0),
290         /* Kryo2XX Silver rAp4 */
291         MIDR_REV(MIDR_QCOM_KRYO_2XX_SILVER, 0xa, 0x4),
292         {},
293 };
294 #endif
295
296 #ifdef CONFIG_ARM64_ERRATUM_843419
297 static const struct arm64_cpu_capabilities erratum_843419_list[] = {
298         {
299                 /* Cortex-A53 r0p[01234] */
300                 .matches = is_affected_midr_range,
301                 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 4),
302                 MIDR_FIXED(0x4, BIT(8)),
303         },
304         {
305                 /* Brahma-B53 r0p[0] */
306                 .matches = is_affected_midr_range,
307                 ERRATA_MIDR_REV(MIDR_BRAHMA_B53, 0, 0),
308         },
309         {},
310 };
311 #endif
312
313 #ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_AT
314 static const struct midr_range erratum_speculative_at_list[] = {
315 #ifdef CONFIG_ARM64_ERRATUM_1165522
316         /* Cortex A76 r0p0 to r2p0 */
317         MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 2, 0),
318 #endif
319 #ifdef CONFIG_ARM64_ERRATUM_1319367
320         MIDR_ALL_VERSIONS(MIDR_CORTEX_A57),
321         MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
322 #endif
323 #ifdef CONFIG_ARM64_ERRATUM_1530923
324         /* Cortex A55 r0p0 to r2p0 */
325         MIDR_RANGE(MIDR_CORTEX_A55, 0, 0, 2, 0),
326         /* Kryo4xx Silver (rdpe => r1p0) */
327         MIDR_REV(MIDR_QCOM_KRYO_4XX_SILVER, 0xd, 0xe),
328 #endif
329         {},
330 };
331 #endif
332
333 #ifdef CONFIG_ARM64_ERRATUM_1463225
334 static const struct midr_range erratum_1463225[] = {
335         /* Cortex-A76 r0p0 - r3p1 */
336         MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 1),
337         /* Kryo4xx Gold (rcpe to rfpf) => (r0p0 to r3p1) */
338         MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xf),
339         {},
340 };
341 #endif
342
343 #ifdef CONFIG_ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE
344 static const struct midr_range trbe_overwrite_fill_mode_cpus[] = {
345 #ifdef CONFIG_ARM64_ERRATUM_2139208
346         MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
347 #endif
348 #ifdef CONFIG_ARM64_ERRATUM_2119858
349         MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
350         MIDR_RANGE(MIDR_CORTEX_X2, 0, 0, 2, 0),
351 #endif
352         {},
353 };
354 #endif  /* CONFIG_ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE */
355
356 #ifdef CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE
357 static const struct midr_range tsb_flush_fail_cpus[] = {
358 #ifdef CONFIG_ARM64_ERRATUM_2067961
359         MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
360 #endif
361 #ifdef CONFIG_ARM64_ERRATUM_2054223
362         MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
363 #endif
364         {},
365 };
366 #endif  /* CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE */
367
368 #ifdef CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE
369 static struct midr_range trbe_write_out_of_range_cpus[] = {
370 #ifdef CONFIG_ARM64_ERRATUM_2253138
371         MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
372 #endif
373 #ifdef CONFIG_ARM64_ERRATUM_2224489
374         MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
375         MIDR_RANGE(MIDR_CORTEX_X2, 0, 0, 2, 0),
376 #endif
377         {},
378 };
379 #endif /* CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE */
380
381 const struct arm64_cpu_capabilities arm64_errata[] = {
382 #ifdef CONFIG_ARM64_WORKAROUND_CLEAN_CACHE
383         {
384                 .desc = "ARM errata 826319, 827319, 824069, or 819472",
385                 .capability = ARM64_WORKAROUND_CLEAN_CACHE,
386                 ERRATA_MIDR_RANGE_LIST(workaround_clean_cache),
387                 .cpu_enable = cpu_enable_cache_maint_trap,
388         },
389 #endif
390 #ifdef CONFIG_ARM64_ERRATUM_832075
391         {
392         /* Cortex-A57 r0p0 - r1p2 */
393                 .desc = "ARM erratum 832075",
394                 .capability = ARM64_WORKAROUND_DEVICE_LOAD_ACQUIRE,
395                 ERRATA_MIDR_RANGE(MIDR_CORTEX_A57,
396                                   0, 0,
397                                   1, 2),
398         },
399 #endif
400 #ifdef CONFIG_ARM64_ERRATUM_834220
401         {
402         /* Cortex-A57 r0p0 - r1p2 */
403                 .desc = "ARM erratum 834220",
404                 .capability = ARM64_WORKAROUND_834220,
405                 ERRATA_MIDR_RANGE(MIDR_CORTEX_A57,
406                                   0, 0,
407                                   1, 2),
408         },
409 #endif
410 #ifdef CONFIG_ARM64_ERRATUM_843419
411         {
412                 .desc = "ARM erratum 843419",
413                 .capability = ARM64_WORKAROUND_843419,
414                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
415                 .matches = cpucap_multi_entry_cap_matches,
416                 .match_list = erratum_843419_list,
417         },
418 #endif
419 #ifdef CONFIG_ARM64_ERRATUM_845719
420         {
421                 .desc = "ARM erratum 845719",
422                 .capability = ARM64_WORKAROUND_845719,
423                 ERRATA_MIDR_RANGE_LIST(erratum_845719_list),
424         },
425 #endif
426 #ifdef CONFIG_CAVIUM_ERRATUM_23154
427         {
428         /* Cavium ThunderX, pass 1.x */
429                 .desc = "Cavium erratum 23154",
430                 .capability = ARM64_WORKAROUND_CAVIUM_23154,
431                 ERRATA_MIDR_REV_RANGE(MIDR_THUNDERX, 0, 0, 1),
432         },
433 #endif
434 #ifdef CONFIG_CAVIUM_ERRATUM_27456
435         {
436                 .desc = "Cavium erratum 27456",
437                 .capability = ARM64_WORKAROUND_CAVIUM_27456,
438                 ERRATA_MIDR_RANGE_LIST(cavium_erratum_27456_cpus),
439         },
440 #endif
441 #ifdef CONFIG_CAVIUM_ERRATUM_30115
442         {
443                 .desc = "Cavium erratum 30115",
444                 .capability = ARM64_WORKAROUND_CAVIUM_30115,
445                 ERRATA_MIDR_RANGE_LIST(cavium_erratum_30115_cpus),
446         },
447 #endif
448         {
449                 .desc = "Mismatched cache type (CTR_EL0)",
450                 .capability = ARM64_MISMATCHED_CACHE_TYPE,
451                 .matches = has_mismatched_cache_type,
452                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
453                 .cpu_enable = cpu_enable_trap_ctr_access,
454         },
455 #ifdef CONFIG_QCOM_FALKOR_ERRATUM_1003
456         {
457                 .desc = "Qualcomm Technologies Falkor/Kryo erratum 1003",
458                 .capability = ARM64_WORKAROUND_QCOM_FALKOR_E1003,
459                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
460                 .matches = cpucap_multi_entry_cap_matches,
461                 .match_list = qcom_erratum_1003_list,
462         },
463 #endif
464 #ifdef CONFIG_ARM64_WORKAROUND_REPEAT_TLBI
465         {
466                 .desc = "Qualcomm erratum 1009, or ARM erratum 1286807",
467                 .capability = ARM64_WORKAROUND_REPEAT_TLBI,
468                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
469                 .matches = cpucap_multi_entry_cap_matches,
470                 .match_list = arm64_repeat_tlbi_list,
471         },
472 #endif
473 #ifdef CONFIG_ARM64_ERRATUM_858921
474         {
475         /* Cortex-A73 all versions */
476                 .desc = "ARM erratum 858921",
477                 .capability = ARM64_WORKAROUND_858921,
478                 ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
479         },
480 #endif
481         {
482                 .desc = "Spectre-v2",
483                 .capability = ARM64_SPECTRE_V2,
484                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
485                 .matches = has_spectre_v2,
486                 .cpu_enable = spectre_v2_enable_mitigation,
487         },
488 #ifdef CONFIG_RANDOMIZE_BASE
489         {
490         /* Must come after the Spectre-v2 entry */
491                 .desc = "Spectre-v3a",
492                 .capability = ARM64_SPECTRE_V3A,
493                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
494                 .matches = has_spectre_v3a,
495                 .cpu_enable = spectre_v3a_enable_mitigation,
496         },
497 #endif
498         {
499                 .desc = "Spectre-v4",
500                 .capability = ARM64_SPECTRE_V4,
501                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
502                 .matches = has_spectre_v4,
503                 .cpu_enable = spectre_v4_enable_mitigation,
504         },
505 #ifdef CONFIG_ARM64_ERRATUM_1418040
506         {
507                 .desc = "ARM erratum 1418040",
508                 .capability = ARM64_WORKAROUND_1418040,
509                 ERRATA_MIDR_RANGE_LIST(erratum_1418040_list),
510                 /*
511                  * We need to allow affected CPUs to come in late, but
512                  * also need the non-affected CPUs to be able to come
513                  * in at any point in time. Wonderful.
514                  */
515                 .type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE,
516         },
517 #endif
518 #ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_AT
519         {
520                 .desc = "ARM errata 1165522, 1319367, or 1530923",
521                 .capability = ARM64_WORKAROUND_SPECULATIVE_AT,
522                 ERRATA_MIDR_RANGE_LIST(erratum_speculative_at_list),
523         },
524 #endif
525 #ifdef CONFIG_ARM64_ERRATUM_1463225
526         {
527                 .desc = "ARM erratum 1463225",
528                 .capability = ARM64_WORKAROUND_1463225,
529                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
530                 .matches = has_cortex_a76_erratum_1463225,
531                 .midr_range_list = erratum_1463225,
532         },
533 #endif
534 #ifdef CONFIG_CAVIUM_TX2_ERRATUM_219
535         {
536                 .desc = "Cavium ThunderX2 erratum 219 (KVM guest sysreg trapping)",
537                 .capability = ARM64_WORKAROUND_CAVIUM_TX2_219_TVM,
538                 ERRATA_MIDR_RANGE_LIST(tx2_family_cpus),
539                 .matches = needs_tx2_tvm_workaround,
540         },
541         {
542                 .desc = "Cavium ThunderX2 erratum 219 (PRFM removal)",
543                 .capability = ARM64_WORKAROUND_CAVIUM_TX2_219_PRFM,
544                 ERRATA_MIDR_RANGE_LIST(tx2_family_cpus),
545         },
546 #endif
547 #ifdef CONFIG_ARM64_ERRATUM_1542419
548         {
549                 /* we depend on the firmware portion for correctness */
550                 .desc = "ARM erratum 1542419 (kernel portion)",
551                 .capability = ARM64_WORKAROUND_1542419,
552                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
553                 .matches = has_neoverse_n1_erratum_1542419,
554                 .cpu_enable = cpu_enable_trap_ctr_access,
555         },
556 #endif
557 #ifdef CONFIG_ARM64_ERRATUM_1508412
558         {
559                 /* we depend on the firmware portion for correctness */
560                 .desc = "ARM erratum 1508412 (kernel portion)",
561                 .capability = ARM64_WORKAROUND_1508412,
562                 ERRATA_MIDR_RANGE(MIDR_CORTEX_A77,
563                                   0, 0,
564                                   1, 0),
565         },
566 #endif
567 #ifdef CONFIG_NVIDIA_CARMEL_CNP_ERRATUM
568         {
569                 /* NVIDIA Carmel */
570                 .desc = "NVIDIA Carmel CNP erratum",
571                 .capability = ARM64_WORKAROUND_NVIDIA_CARMEL_CNP,
572                 ERRATA_MIDR_ALL_VERSIONS(MIDR_NVIDIA_CARMEL),
573         },
574 #endif
575 #ifdef CONFIG_ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE
576         {
577                 /*
578                  * The erratum work around is handled within the TRBE
579                  * driver and can be applied per-cpu. So, we can allow
580                  * a late CPU to come online with this erratum.
581                  */
582                 .desc = "ARM erratum 2119858 or 2139208",
583                 .capability = ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE,
584                 .type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE,
585                 CAP_MIDR_RANGE_LIST(trbe_overwrite_fill_mode_cpus),
586         },
587 #endif
588 #ifdef CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE
589         {
590                 .desc = "ARM erratum 2067961 or 2054223",
591                 .capability = ARM64_WORKAROUND_TSB_FLUSH_FAILURE,
592                 ERRATA_MIDR_RANGE_LIST(tsb_flush_fail_cpus),
593         },
594 #endif
595 #ifdef CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE
596         {
597                 .desc = "ARM erratum 2253138 or 2224489",
598                 .capability = ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE,
599                 .type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE,
600                 CAP_MIDR_RANGE_LIST(trbe_write_out_of_range_cpus),
601         },
602 #endif
603 #ifdef CONFIG_ARM64_ERRATUM_2077057
604         {
605                 .desc = "ARM erratum 2077057",
606                 .capability = ARM64_WORKAROUND_2077057,
607                 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
608                 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 2),
609         },
610 #endif
611 #ifdef CONFIG_ARM64_ERRATUM_2064142
612         {
613                 .desc = "ARM erratum 2064142",
614                 .capability = ARM64_WORKAROUND_2064142,
615
616                 /* Cortex-A510 r0p0 - r0p2 */
617                 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 2)
618         },
619 #endif
620 #ifdef CONFIG_ARM64_ERRATUM_2038923
621         {
622                 .desc = "ARM erratum 2038923",
623                 .capability = ARM64_WORKAROUND_2038923,
624
625                 /* Cortex-A510 r0p0 - r0p2 */
626                 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 2)
627         },
628 #endif
629 #ifdef CONFIG_ARM64_ERRATUM_1902691
630         {
631                 .desc = "ARM erratum 1902691",
632                 .capability = ARM64_WORKAROUND_1902691,
633
634                 /* Cortex-A510 r0p0 - r0p1 */
635                 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 1)
636         },
637 #endif
638         {
639         }
640 };