1 =======================================
2 Silicon Errata and Software Workarounds
3 =======================================
4
5 Author: Will Deacon <will.deacon@arm.com>
6
7 Date : 27 November 2015
8
9 It is an unfortunate fact of life that hardwar
10 so-called "errata", which can cause it to devi
11 under specific circumstances. For hardware pr
12 errata are broadly classified into the followi
13
14 ========== ================================
15 Category A A critical error without a viabl
16 Category B A significant or critical error
17 workaround.
18 Category C A minor error that is not expect
19 operation.
20 ========== ================================
21
22 For more information, consult one of the "Soft
23 Notice" documents available on infocenter.arm.
24 required).
25
26 As far as Linux is concerned, Category B errat
27 treatment in the operating system. For example
28 sequence of code, or configuring the processor
29 less common situation may require similar acti
30 a Category A erratum into a Category C erratum
31 known as "software workarounds" and are only r
32 cases (e.g. those cases that both require a no
33 can be triggered by Linux).
34
35 For software workarounds that may adversely im
36 the erratum in question, a Kconfig entry is ad
37 Features" -> "ARM errata workarounds via the a
38 With the exception of workarounds for errata d
39 are enabled by default and patched in at runti
40 detected. For less-intrusive workarounds, a Kc
41 available and the code is structured (preferab
42 a way that the erratum will not be hit.
43
44 This approach can make it slightly onerous to
45 errata are worked around in an arbitrary kerne
46 file acts as a registry of software workaround
47 will be updated when new workarounds are commi
48 stable kernels.
49
50 +----------------+-----------------+----------
51 | Implementor | Component | Erratum I
52 +================+=================+==========
53 | Allwinner | A64/R18 | UNKNOWN1
54 +----------------+-----------------+----------
55 +----------------+-----------------+----------
56 | Ampere | AmpereOne | AC03_CPU_
57 +----------------+-----------------+----------
58 | Ampere | AmpereOne AC04 | AC04_CPU_
59 +----------------+-----------------+----------
60 +----------------+-----------------+----------
61 | ARM | Cortex-A510 | #2457168
62 +----------------+-----------------+----------
63 | ARM | Cortex-A510 | #2064142
64 +----------------+-----------------+----------
65 | ARM | Cortex-A510 | #2038923
66 +----------------+-----------------+----------
67 | ARM | Cortex-A510 | #1902691
68 +----------------+-----------------+----------
69 | ARM | Cortex-A510 | #2051678
70 +----------------+-----------------+----------
71 | ARM | Cortex-A510 | #2077057
72 +----------------+-----------------+----------
73 | ARM | Cortex-A510 | #2441009
74 +----------------+-----------------+----------
75 | ARM | Cortex-A510 | #2658417
76 +----------------+-----------------+----------
77 | ARM | Cortex-A510 | #3117295
78 +----------------+-----------------+----------
79 | ARM | Cortex-A520 | #2966298
80 +----------------+-----------------+----------
81 | ARM | Cortex-A53 | #826319
82 +----------------+-----------------+----------
83 | ARM | Cortex-A53 | #827319
84 +----------------+-----------------+----------
85 | ARM | Cortex-A53 | #824069
86 +----------------+-----------------+----------
87 | ARM | Cortex-A53 | #819472
88 +----------------+-----------------+----------
89 | ARM | Cortex-A53 | #845719
90 +----------------+-----------------+----------
91 | ARM | Cortex-A53 | #843419
92 +----------------+-----------------+----------
93 | ARM | Cortex-A55 | #1024718
94 +----------------+-----------------+----------
95 | ARM | Cortex-A55 | #1530923
96 +----------------+-----------------+----------
97 | ARM | Cortex-A55 | #2441007
98 +----------------+-----------------+----------
99 | ARM | Cortex-A57 | #832075
100 +----------------+-----------------+----------
101 | ARM | Cortex-A57 | #852523
102 +----------------+-----------------+----------
103 | ARM | Cortex-A57 | #834220
104 +----------------+-----------------+----------
105 | ARM | Cortex-A57 | #1319537
106 +----------------+-----------------+----------
107 | ARM | Cortex-A57 | #1742098
108 +----------------+-----------------+----------
109 | ARM | Cortex-A72 | #853709
110 +----------------+-----------------+----------
111 | ARM | Cortex-A72 | #1319367
112 +----------------+-----------------+----------
113 | ARM | Cortex-A72 | #1655431
114 +----------------+-----------------+----------
115 | ARM | Cortex-A73 | #858921
116 +----------------+-----------------+----------
117 | ARM | Cortex-A76 | #1188873,
118 +----------------+-----------------+----------
119 | ARM | Cortex-A76 | #1165522
120 +----------------+-----------------+----------
121 | ARM | Cortex-A76 | #1286807
122 +----------------+-----------------+----------
123 | ARM | Cortex-A76 | #1463225
124 +----------------+-----------------+----------
125 | ARM | Cortex-A76 | #1490853
126 +----------------+-----------------+----------
127 | ARM | Cortex-A76 | #3324349
128 +----------------+-----------------+----------
129 | ARM | Cortex-A77 | #1491015
130 +----------------+-----------------+----------
131 | ARM | Cortex-A77 | #1508412
132 +----------------+-----------------+----------
133 | ARM | Cortex-A77 | #3324348
134 +----------------+-----------------+----------
135 | ARM | Cortex-A78 | #3324344
136 +----------------+-----------------+----------
137 | ARM | Cortex-A78C | #3324346,
138 +----------------+-----------------+----------
139 | ARM | Cortex-A710 | #2119858
140 +----------------+-----------------+----------
141 | ARM | Cortex-A710 | #2054223
142 +----------------+-----------------+----------
143 | ARM | Cortex-A710 | #2224489
144 +----------------+-----------------+----------
145 | ARM | Cortex-A710 | #3324338
146 +----------------+-----------------+----------
147 | ARM | Cortex-A715 | #2645198
148 +----------------+-----------------+----------
149 | ARM | Cortex-A715 | #3456084
150 +----------------+-----------------+----------
151 | ARM | Cortex-A720 | #3456091
152 +----------------+-----------------+----------
153 | ARM | Cortex-A725 | #3456106
154 +----------------+-----------------+----------
155 | ARM | Cortex-X1 | #1502854
156 +----------------+-----------------+----------
157 | ARM | Cortex-X1 | #3324344
158 +----------------+-----------------+----------
159 | ARM | Cortex-X1C | #3324346
160 +----------------+-----------------+----------
161 | ARM | Cortex-X2 | #2119858
162 +----------------+-----------------+----------
163 | ARM | Cortex-X2 | #2224489
164 +----------------+-----------------+----------
165 | ARM | Cortex-X2 | #3324338
166 +----------------+-----------------+----------
167 | ARM | Cortex-X3 | #3324335
168 +----------------+-----------------+----------
169 | ARM | Cortex-X4 | #3194386
170 +----------------+-----------------+----------
171 | ARM | Cortex-X925 | #3324334
172 +----------------+-----------------+----------
173 | ARM | Neoverse-N1 | #1188873,
174 +----------------+-----------------+----------
175 | ARM | Neoverse-N1 | #1349291
176 +----------------+-----------------+----------
177 | ARM | Neoverse-N1 | #1490853
178 +----------------+-----------------+----------
179 | ARM | Neoverse-N1 | #1542419
180 +----------------+-----------------+----------
181 | ARM | Neoverse-N1 | #3324349
182 +----------------+-----------------+----------
183 | ARM | Neoverse-N2 | #2139208
184 +----------------+-----------------+----------
185 | ARM | Neoverse-N2 | #2067961
186 +----------------+-----------------+----------
187 | ARM | Neoverse-N2 | #2253138
188 +----------------+-----------------+----------
189 | ARM | Neoverse-N2 | #3324339
190 +----------------+-----------------+----------
191 | ARM | Neoverse-N3 | #3456111
192 +----------------+-----------------+----------
193 | ARM | Neoverse-V1 | #1619801
194 +----------------+-----------------+----------
195 | ARM | Neoverse-V1 | #3324341
196 +----------------+-----------------+----------
197 | ARM | Neoverse-V2 | #3324336
198 +----------------+-----------------+----------
199 | ARM | Neoverse-V3 | #3312417
200 +----------------+-----------------+----------
201 | ARM | MMU-500 | #841119,8
202 +----------------+-----------------+----------
203 | ARM | MMU-600 | #1076982,
204 +----------------+-----------------+----------
205 | ARM | MMU-700 | #2268618,
206 +----------------+-----------------+----------
207 +----------------+-----------------+----------
208 | ARM | GIC-700 | #2941627
209 +----------------+-----------------+----------
210 +----------------+-----------------+----------
211 | Broadcom | Brahma-B53 | N/A
212 +----------------+-----------------+----------
213 | Broadcom | Brahma-B53 | N/A
214 +----------------+-----------------+----------
215 +----------------+-----------------+----------
216 | Cavium | ThunderX ITS | #22375,24
217 +----------------+-----------------+----------
218 | Cavium | ThunderX ITS | #23144
219 +----------------+-----------------+----------
220 | Cavium | ThunderX GICv3 | #23154,38
221 +----------------+-----------------+----------
222 | Cavium | ThunderX GICv3 | #38539
223 +----------------+-----------------+----------
224 | Cavium | ThunderX Core | #27456
225 +----------------+-----------------+----------
226 | Cavium | ThunderX Core | #30115
227 +----------------+-----------------+----------
228 | Cavium | ThunderX SMMUv2 | #27704
229 +----------------+-----------------+----------
230 | Cavium | ThunderX2 SMMUv3| #74
231 +----------------+-----------------+----------
232 | Cavium | ThunderX2 SMMUv3| #126
233 +----------------+-----------------+----------
234 | Cavium | ThunderX2 Core | #219
235 +----------------+-----------------+----------
236 +----------------+-----------------+----------
237 | Marvell | ARM-MMU-500 | #582743
238 +----------------+-----------------+----------
239 +----------------+-----------------+----------
240 | NVIDIA | Carmel Core | N/A
241 +----------------+-----------------+----------
242 | NVIDIA | T241 GICv3/4.x | T241-FABR
243 +----------------+-----------------+----------
244 +----------------+-----------------+----------
245 | Freescale/NXP | LS2080A/LS1043A | A-008585
246 +----------------+-----------------+----------
247 +----------------+-----------------+----------
248 | Hisilicon | Hip0{5,6,7} | #16101010
249 +----------------+-----------------+----------
250 | Hisilicon | Hip0{6,7} | #16101070
251 +----------------+-----------------+----------
252 | Hisilicon | Hip0{6,7} | #16101080
253 +----------------+-----------------+----------
254 | Hisilicon | Hip07 | #16160080
255 +----------------+-----------------+----------
256 | Hisilicon | Hip08 SMMU PMCG | #16200180
257 +----------------+-----------------+----------
258 | Hisilicon | Hip{08,09,10,10C| #16200190
259 | | ,11} SMMU PMCG |
260 +----------------+-----------------+----------
261 +----------------+-----------------+----------
262 | Qualcomm Tech. | Kryo/Falkor v1 | E1003
263 +----------------+-----------------+----------
264 | Qualcomm Tech. | Kryo/Falkor v1 | E1009
265 +----------------+-----------------+----------
266 | Qualcomm Tech. | QDF2400 ITS | E0065
267 +----------------+-----------------+----------
268 | Qualcomm Tech. | Falkor v{1,2} | E1041
269 +----------------+-----------------+----------
270 | Qualcomm Tech. | Kryo4xx Gold | N/A
271 +----------------+-----------------+----------
272 | Qualcomm Tech. | Kryo4xx Gold | N/A
273 +----------------+-----------------+----------
274 | Qualcomm Tech. | Kryo4xx Silver | N/A
275 +----------------+-----------------+----------
276 | Qualcomm Tech. | Kryo4xx Silver | N/A
277 +----------------+-----------------+----------
278 | Qualcomm Tech. | Kryo4xx Gold | N/A
279 +----------------+-----------------+----------
280 +----------------+-----------------+----------
281 | Rockchip | RK3588 | #3588001
282 +----------------+-----------------+----------
283 +----------------+-----------------+----------
284 | Fujitsu | A64FX | E#010001
285 +----------------+-----------------+----------
286 +----------------+-----------------+----------
287 | ASR | ASR8601 | #8601001
288 +----------------+-----------------+----------
289 +----------------+-----------------+----------
290 | Microsoft | Azure Cobalt 100| #2139208
291 +----------------+-----------------+----------
292 | Microsoft | Azure Cobalt 100| #2067961
293 +----------------+-----------------+----------
294 | Microsoft | Azure Cobalt 100| #2253138
295 +----------------+-----------------+----------
296 | Microsoft | Azure Cobalt 100| #3324339
297 +----------------+-----------------+----------
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