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
is_affected_midr_range(const struct arm64_cpu_capabilities * entry,int scope)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
is_affected_midr_range_list(const struct arm64_cpu_capabilities * entry,int scope)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
is_kryo_midr(const struct arm64_cpu_capabilities * entry,int scope)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
has_mismatched_cache_type(const struct arm64_cpu_capabilities * entry,int scope)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
cpu_enable_trap_ctr_access(const struct arm64_cpu_capabilities * cap)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
has_cortex_a76_erratum_1463225(const struct arm64_cpu_capabilities * entry,int scope)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
cpu_enable_cache_maint_trap(const struct arm64_cpu_capabilities * __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
needs_tx2_tvm_workaround(const struct arm64_cpu_capabilities * entry,int scope)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
has_neoverse_n1_erratum_1542419(const struct arm64_cpu_capabilities * entry,int scope)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 MIDR_ALL_VERSIONS(MIDR_MICROSOFT_AZURE_COBALT_100),
378 #endif
379 #ifdef CONFIG_ARM64_ERRATUM_2119858
380 MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
381 MIDR_RANGE(MIDR_CORTEX_X2, 0, 0, 2, 0),
382 #endif
383 {},
384 };
385 #endif /* CONFIG_ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE */
386
387 #ifdef CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE
388 static const struct midr_range tsb_flush_fail_cpus[] = {
389 #ifdef CONFIG_ARM64_ERRATUM_2067961
390 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
391 MIDR_ALL_VERSIONS(MIDR_MICROSOFT_AZURE_COBALT_100),
392 #endif
393 #ifdef CONFIG_ARM64_ERRATUM_2054223
394 MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
395 #endif
396 {},
397 };
398 #endif /* CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE */
399
400 #ifdef CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE
401 static struct midr_range trbe_write_out_of_range_cpus[] = {
402 #ifdef CONFIG_ARM64_ERRATUM_2253138
403 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
404 MIDR_ALL_VERSIONS(MIDR_MICROSOFT_AZURE_COBALT_100),
405 #endif
406 #ifdef CONFIG_ARM64_ERRATUM_2224489
407 MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
408 MIDR_RANGE(MIDR_CORTEX_X2, 0, 0, 2, 0),
409 #endif
410 {},
411 };
412 #endif /* CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE */
413
414 #ifdef CONFIG_ARM64_ERRATUM_1742098
415 static struct midr_range broken_aarch32_aes[] = {
416 MIDR_RANGE(MIDR_CORTEX_A57, 0, 1, 0xf, 0xf),
417 MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
418 {},
419 };
420 #endif /* CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE */
421
422 #ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD
423 static const struct midr_range erratum_spec_unpriv_load_list[] = {
424 #ifdef CONFIG_ARM64_ERRATUM_3117295
425 MIDR_ALL_VERSIONS(MIDR_CORTEX_A510),
426 #endif
427 #ifdef CONFIG_ARM64_ERRATUM_2966298
428 /* Cortex-A520 r0p0 to r0p1 */
429 MIDR_REV_RANGE(MIDR_CORTEX_A520, 0, 0, 1),
430 #endif
431 {},
432 };
433 #endif
434
435 #ifdef CONFIG_ARM64_ERRATUM_3194386
436 static const struct midr_range erratum_spec_ssbs_list[] = {
437 MIDR_ALL_VERSIONS(MIDR_CORTEX_A76),
438 MIDR_ALL_VERSIONS(MIDR_CORTEX_A77),
439 MIDR_ALL_VERSIONS(MIDR_CORTEX_A78),
440 MIDR_ALL_VERSIONS(MIDR_CORTEX_A78C),
441 MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
442 MIDR_ALL_VERSIONS(MIDR_CORTEX_A720),
443 MIDR_ALL_VERSIONS(MIDR_CORTEX_A725),
444 MIDR_ALL_VERSIONS(MIDR_CORTEX_X1),
445 MIDR_ALL_VERSIONS(MIDR_CORTEX_X1C),
446 MIDR_ALL_VERSIONS(MIDR_CORTEX_X2),
447 MIDR_ALL_VERSIONS(MIDR_CORTEX_X3),
448 MIDR_ALL_VERSIONS(MIDR_CORTEX_X4),
449 MIDR_ALL_VERSIONS(MIDR_CORTEX_X925),
450 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1),
451 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
452 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V1),
453 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V2),
454 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V3),
455 {}
456 };
457 #endif
458
459 #ifdef CONFIG_AMPERE_ERRATUM_AC03_CPU_38
460 static const struct midr_range erratum_ac03_cpu_38_list[] = {
461 MIDR_ALL_VERSIONS(MIDR_AMPERE1),
462 MIDR_ALL_VERSIONS(MIDR_AMPERE1A),
463 {},
464 };
465 #endif
466
467 const struct arm64_cpu_capabilities arm64_errata[] = {
468 #ifdef CONFIG_ARM64_WORKAROUND_CLEAN_CACHE
469 {
470 .desc = "ARM errata 826319, 827319, 824069, or 819472",
471 .capability = ARM64_WORKAROUND_CLEAN_CACHE,
472 ERRATA_MIDR_RANGE_LIST(workaround_clean_cache),
473 .cpu_enable = cpu_enable_cache_maint_trap,
474 },
475 #endif
476 #ifdef CONFIG_ARM64_ERRATUM_832075
477 {
478 /* Cortex-A57 r0p0 - r1p2 */
479 .desc = "ARM erratum 832075",
480 .capability = ARM64_WORKAROUND_DEVICE_LOAD_ACQUIRE,
481 ERRATA_MIDR_RANGE(MIDR_CORTEX_A57,
482 0, 0,
483 1, 2),
484 },
485 #endif
486 #ifdef CONFIG_ARM64_ERRATUM_834220
487 {
488 /* Cortex-A57 r0p0 - r1p2 */
489 .desc = "ARM erratum 834220",
490 .capability = ARM64_WORKAROUND_834220,
491 ERRATA_MIDR_RANGE(MIDR_CORTEX_A57,
492 0, 0,
493 1, 2),
494 },
495 #endif
496 #ifdef CONFIG_ARM64_ERRATUM_843419
497 {
498 .desc = "ARM erratum 843419",
499 .capability = ARM64_WORKAROUND_843419,
500 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
501 .matches = cpucap_multi_entry_cap_matches,
502 .match_list = erratum_843419_list,
503 },
504 #endif
505 #ifdef CONFIG_ARM64_ERRATUM_845719
506 {
507 .desc = "ARM erratum 845719",
508 .capability = ARM64_WORKAROUND_845719,
509 ERRATA_MIDR_RANGE_LIST(erratum_845719_list),
510 },
511 #endif
512 #ifdef CONFIG_CAVIUM_ERRATUM_23154
513 {
514 .desc = "Cavium errata 23154 and 38545",
515 .capability = ARM64_WORKAROUND_CAVIUM_23154,
516 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
517 ERRATA_MIDR_RANGE_LIST(cavium_erratum_23154_cpus),
518 },
519 #endif
520 #ifdef CONFIG_CAVIUM_ERRATUM_27456
521 {
522 .desc = "Cavium erratum 27456",
523 .capability = ARM64_WORKAROUND_CAVIUM_27456,
524 ERRATA_MIDR_RANGE_LIST(cavium_erratum_27456_cpus),
525 },
526 #endif
527 #ifdef CONFIG_CAVIUM_ERRATUM_30115
528 {
529 .desc = "Cavium erratum 30115",
530 .capability = ARM64_WORKAROUND_CAVIUM_30115,
531 ERRATA_MIDR_RANGE_LIST(cavium_erratum_30115_cpus),
532 },
533 #endif
534 {
535 .desc = "Mismatched cache type (CTR_EL0)",
536 .capability = ARM64_MISMATCHED_CACHE_TYPE,
537 .matches = has_mismatched_cache_type,
538 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
539 .cpu_enable = cpu_enable_trap_ctr_access,
540 },
541 #ifdef CONFIG_QCOM_FALKOR_ERRATUM_1003
542 {
543 .desc = "Qualcomm Technologies Falkor/Kryo erratum 1003",
544 .capability = ARM64_WORKAROUND_QCOM_FALKOR_E1003,
545 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
546 .matches = cpucap_multi_entry_cap_matches,
547 .match_list = qcom_erratum_1003_list,
548 },
549 #endif
550 #ifdef CONFIG_ARM64_WORKAROUND_REPEAT_TLBI
551 {
552 .desc = "Qualcomm erratum 1009, or ARM erratum 1286807, 2441009",
553 .capability = ARM64_WORKAROUND_REPEAT_TLBI,
554 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
555 .matches = cpucap_multi_entry_cap_matches,
556 .match_list = arm64_repeat_tlbi_list,
557 },
558 #endif
559 #ifdef CONFIG_ARM64_ERRATUM_858921
560 {
561 /* Cortex-A73 all versions */
562 .desc = "ARM erratum 858921",
563 .capability = ARM64_WORKAROUND_858921,
564 ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
565 },
566 #endif
567 {
568 .desc = "Spectre-v2",
569 .capability = ARM64_SPECTRE_V2,
570 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
571 .matches = has_spectre_v2,
572 .cpu_enable = spectre_v2_enable_mitigation,
573 },
574 #ifdef CONFIG_RANDOMIZE_BASE
575 {
576 /* Must come after the Spectre-v2 entry */
577 .desc = "Spectre-v3a",
578 .capability = ARM64_SPECTRE_V3A,
579 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
580 .matches = has_spectre_v3a,
581 .cpu_enable = spectre_v3a_enable_mitigation,
582 },
583 #endif
584 {
585 .desc = "Spectre-v4",
586 .capability = ARM64_SPECTRE_V4,
587 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
588 .matches = has_spectre_v4,
589 .cpu_enable = spectre_v4_enable_mitigation,
590 },
591 {
592 .desc = "Spectre-BHB",
593 .capability = ARM64_SPECTRE_BHB,
594 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
595 .matches = is_spectre_bhb_affected,
596 .cpu_enable = spectre_bhb_enable_mitigation,
597 },
598 #ifdef CONFIG_ARM64_ERRATUM_1418040
599 {
600 .desc = "ARM erratum 1418040",
601 .capability = ARM64_WORKAROUND_1418040,
602 ERRATA_MIDR_RANGE_LIST(erratum_1418040_list),
603 /*
604 * We need to allow affected CPUs to come in late, but
605 * also need the non-affected CPUs to be able to come
606 * in at any point in time. Wonderful.
607 */
608 .type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE,
609 },
610 #endif
611 #ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_AT
612 {
613 .desc = "ARM errata 1165522, 1319367, or 1530923",
614 .capability = ARM64_WORKAROUND_SPECULATIVE_AT,
615 ERRATA_MIDR_RANGE_LIST(erratum_speculative_at_list),
616 },
617 #endif
618 #ifdef CONFIG_ARM64_ERRATUM_1463225
619 {
620 .desc = "ARM erratum 1463225",
621 .capability = ARM64_WORKAROUND_1463225,
622 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
623 .matches = has_cortex_a76_erratum_1463225,
624 .midr_range_list = erratum_1463225,
625 },
626 #endif
627 #ifdef CONFIG_CAVIUM_TX2_ERRATUM_219
628 {
629 .desc = "Cavium ThunderX2 erratum 219 (KVM guest sysreg trapping)",
630 .capability = ARM64_WORKAROUND_CAVIUM_TX2_219_TVM,
631 ERRATA_MIDR_RANGE_LIST(tx2_family_cpus),
632 .matches = needs_tx2_tvm_workaround,
633 },
634 {
635 .desc = "Cavium ThunderX2 erratum 219 (PRFM removal)",
636 .capability = ARM64_WORKAROUND_CAVIUM_TX2_219_PRFM,
637 ERRATA_MIDR_RANGE_LIST(tx2_family_cpus),
638 },
639 #endif
640 #ifdef CONFIG_ARM64_ERRATUM_1542419
641 {
642 /* we depend on the firmware portion for correctness */
643 .desc = "ARM erratum 1542419 (kernel portion)",
644 .capability = ARM64_WORKAROUND_1542419,
645 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
646 .matches = has_neoverse_n1_erratum_1542419,
647 .cpu_enable = cpu_enable_trap_ctr_access,
648 },
649 #endif
650 #ifdef CONFIG_ARM64_ERRATUM_1508412
651 {
652 /* we depend on the firmware portion for correctness */
653 .desc = "ARM erratum 1508412 (kernel portion)",
654 .capability = ARM64_WORKAROUND_1508412,
655 ERRATA_MIDR_RANGE(MIDR_CORTEX_A77,
656 0, 0,
657 1, 0),
658 },
659 #endif
660 #ifdef CONFIG_NVIDIA_CARMEL_CNP_ERRATUM
661 {
662 /* NVIDIA Carmel */
663 .desc = "NVIDIA Carmel CNP erratum",
664 .capability = ARM64_WORKAROUND_NVIDIA_CARMEL_CNP,
665 ERRATA_MIDR_ALL_VERSIONS(MIDR_NVIDIA_CARMEL),
666 },
667 #endif
668 #ifdef CONFIG_ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE
669 {
670 /*
671 * The erratum work around is handled within the TRBE
672 * driver and can be applied per-cpu. So, we can allow
673 * a late CPU to come online with this erratum.
674 */
675 .desc = "ARM erratum 2119858 or 2139208",
676 .capability = ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE,
677 .type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE,
678 CAP_MIDR_RANGE_LIST(trbe_overwrite_fill_mode_cpus),
679 },
680 #endif
681 #ifdef CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE
682 {
683 .desc = "ARM erratum 2067961 or 2054223",
684 .capability = ARM64_WORKAROUND_TSB_FLUSH_FAILURE,
685 ERRATA_MIDR_RANGE_LIST(tsb_flush_fail_cpus),
686 },
687 #endif
688 #ifdef CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE
689 {
690 .desc = "ARM erratum 2253138 or 2224489",
691 .capability = ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE,
692 .type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE,
693 CAP_MIDR_RANGE_LIST(trbe_write_out_of_range_cpus),
694 },
695 #endif
696 #ifdef CONFIG_ARM64_ERRATUM_2645198
697 {
698 .desc = "ARM erratum 2645198",
699 .capability = ARM64_WORKAROUND_2645198,
700 ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A715)
701 },
702 #endif
703 #ifdef CONFIG_ARM64_ERRATUM_2077057
704 {
705 .desc = "ARM erratum 2077057",
706 .capability = ARM64_WORKAROUND_2077057,
707 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 2),
708 },
709 #endif
710 #ifdef CONFIG_ARM64_ERRATUM_2064142
711 {
712 .desc = "ARM erratum 2064142",
713 .capability = ARM64_WORKAROUND_2064142,
714
715 /* Cortex-A510 r0p0 - r0p2 */
716 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 2)
717 },
718 #endif
719 #ifdef CONFIG_ARM64_ERRATUM_2457168
720 {
721 .desc = "ARM erratum 2457168",
722 .capability = ARM64_WORKAROUND_2457168,
723 .type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE,
724
725 /* Cortex-A510 r0p0-r1p1 */
726 CAP_MIDR_RANGE(MIDR_CORTEX_A510, 0, 0, 1, 1)
727 },
728 #endif
729 #ifdef CONFIG_ARM64_ERRATUM_2038923
730 {
731 .desc = "ARM erratum 2038923",
732 .capability = ARM64_WORKAROUND_2038923,
733
734 /* Cortex-A510 r0p0 - r0p2 */
735 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 2)
736 },
737 #endif
738 #ifdef CONFIG_ARM64_ERRATUM_1902691
739 {
740 .desc = "ARM erratum 1902691",
741 .capability = ARM64_WORKAROUND_1902691,
742
743 /* Cortex-A510 r0p0 - r0p1 */
744 ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 1)
745 },
746 #endif
747 #ifdef CONFIG_ARM64_ERRATUM_1742098
748 {
749 .desc = "ARM erratum 1742098",
750 .capability = ARM64_WORKAROUND_1742098,
751 CAP_MIDR_RANGE_LIST(broken_aarch32_aes),
752 .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
753 },
754 #endif
755 #ifdef CONFIG_ARM64_ERRATUM_2658417
756 {
757 .desc = "ARM erratum 2658417",
758 .capability = ARM64_WORKAROUND_2658417,
759 /* Cortex-A510 r0p0 - r1p1 */
760 ERRATA_MIDR_RANGE(MIDR_CORTEX_A510, 0, 0, 1, 1),
761 MIDR_FIXED(MIDR_CPU_VAR_REV(1,1), BIT(25)),
762 },
763 #endif
764 #ifdef CONFIG_ARM64_ERRATUM_3194386
765 {
766 .desc = "SSBS not fully self-synchronizing",
767 .capability = ARM64_WORKAROUND_SPECULATIVE_SSBS,
768 ERRATA_MIDR_RANGE_LIST(erratum_spec_ssbs_list),
769 },
770 #endif
771 #ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD
772 {
773 .desc = "ARM errata 2966298, 3117295",
774 .capability = ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD,
775 /* Cortex-A520 r0p0 - r0p1 */
776 ERRATA_MIDR_RANGE_LIST(erratum_spec_unpriv_load_list),
777 },
778 #endif
779 #ifdef CONFIG_AMPERE_ERRATUM_AC03_CPU_38
780 {
781 .desc = "AmpereOne erratum AC03_CPU_38",
782 .capability = ARM64_WORKAROUND_AMPERE_AC03_CPU_38,
783 ERRATA_MIDR_RANGE_LIST(erratum_ac03_cpu_38_list),
784 },
785 #endif
786 {
787 }
788 };
789