fix(cpus): workaround for C1-Pro erratum 3362007

C1-Pro erratum 3362007 is a Cat B erratum that applies to
CPU revision r0p0 and is fixed in r1p0.

This erratum can be avoided by setting CPUACTLR2_E

fix(cpus): workaround for C1-Pro erratum 3362007

C1-Pro erratum 3362007 is a Cat B erratum that applies to
CPU revision r0p0 and is fixed in r1p0.

This erratum can be avoided by setting CPUACTLR2_EL1[27] to 1.
Only a minor increase in power consumption is expected.

SDEN documentation:
https://developer.arm.com/documentation/SDEN-3273080/1300/?lang=en

Change-Id: I529e9812bddffe927c986f9b5ee135f4866aa455
Signed-off-by: Xialin Liu <xialin.liu@arm.com>

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fix(cpus): workaround for C1-Pro erratum 3684268

C1-Pro erratum 3684268 is a Cat B erratum that applies
to revisions r0p0, r1p0 and it is fixed in r1p1.

The erratum is avoided by disabling the affe

fix(cpus): workaround for C1-Pro erratum 3684268

C1-Pro erratum 3684268 is a Cat B erratum that applies
to revisions r0p0, r1p0 and it is fixed in r1p1.

The erratum is avoided by disabling the affected prefetcher,
which is done by setting CPUECTLR2_EL1[49] to 1.

SDEN documentation:
https://developer.arm.com/documentation/SDEN-3273080/1300/?lang=en

Change-Id: I7929e931572471370b1a899d412b11f1c4d206c8
Signed-off-by: Xialin Liu <xialin.liu@arm.com>

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fix(cpus): workaround for C1-Pro erratum 3694158

C1-Pro erratum 3694158 is a Cat B erratum that applies
to revisions r0p0, r1p0 and r1p1, it is fixed in r1p2.

This erratum can be avoided by inserti

fix(cpus): workaround for C1-Pro erratum 3694158

C1-Pro erratum 3694158 is a Cat B erratum that applies
to revisions r0p0, r1p0 and r1p1, it is fixed in r1p2.

This erratum can be avoided by inserting a DMB LD after
each DSB ST instruction with a CPU implementation specific
patch sequence.

SDEN documentation:
https://developer.arm.com/documentation/SDEN-3273080/1300/?lang=en

Change-Id: I38f0fb6565110c579ab16b76e0f4ca601fa1b912
Signed-off-by: Xialin Liu <xialin.liu@arm.com>

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fix(cpus): workaround for C1-Pro erratum 3706576

C1-Pro erratum 3706576 is a Cat B erratum that applies to
CPU revisions r0p0 and r1p0, and is fixed in r1p1.

This erratum might cause data corruptio

fix(cpus): workaround for C1-Pro erratum 3706576

C1-Pro erratum 3706576 is a Cat B erratum that applies to
CPU revisions r0p0 and r1p0, and is fixed in r1p1.

This erratum might cause data corruption when Memory read
effect crossing a 64B boundary, which can be avoided by
setting CPUACTLR2_EL1[37] to 1. Setting this bit is expected
to have a negligible performance impact.

SDEN documentation:
https://developer.arm.com/documentation/SDEN-3273080/1300/?lang=en

Change-Id: Ie427e56c682065bdf82da9b11e71da6383db4e73
Signed-off-by: Xialin Liu <xialin.liu@arm.com>

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Merge changes from topic "ssbs_errata_catchup" into integration

* changes:
fix(cpus): workaround for Cortex-A720AE erratum 3456103
fix(cpus): workaround for Cortex-A720 erratum 3456091
fix(cpu

Merge changes from topic "ssbs_errata_catchup" into integration

* changes:
fix(cpus): workaround for Cortex-A720AE erratum 3456103
fix(cpus): workaround for Cortex-A720 erratum 3456091
fix(cpus): workaround for Cortex-A715 erratum 3456084
fix(cpus): workaround for Cortex-X2 erratum 3324338
fix(cpus): workaround for Cortex-A710 erratum 3324338

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fix(docs): fixing the name for C1 premium errata 3324333

The macro name for C1 premium errata was incorrect and
thus fixing the naming.

Change-Id: I33256e618e199c6113578bc920019015a0c51284
Signed-o

fix(docs): fixing the name for C1 premium errata 3324333

The macro name for C1 premium errata was incorrect and
thus fixing the naming.

Change-Id: I33256e618e199c6113578bc920019015a0c51284
Signed-off-by: Xialin Liu <xialin.liu@arm.com>

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fix(cpus): workaround for C1-Premium erratum 3324333

C1-Premium erratum 3324333 is a Cat B erratum that applies
to revision r0p0, and it is fixed in r1p0.

This errata can be avoided by having a spe

fix(cpus): workaround for C1-Premium erratum 3324333

C1-Premium erratum 3324333 is a Cat B erratum that applies
to revision r0p0, and it is fixed in r1p0.

This errata can be avoided by having a speculation barrier instruction
to ensure the new value of PSTATE.SSBS affects the subsequent
instructions in the execution stream under speculation.

SDEN documentation:
https://developer.arm.com/documentation/111078/latest

Change-Id: Ic9f09c56e7cc94f3d45e86d284971ee2b4b0fb40
Signed-off-by: Xialin Liu <xialin.liu@arm.com>
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>

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fix(cpus): workaround for C1-Premium erratum 4102704

C1-Premium erratum 4102704 is a Cat B erratum that applies
to revisions r0p0, r1p0 and it is still open.

The erratum can be avoided by setting C

fix(cpus): workaround for C1-Premium erratum 4102704

C1-Premium erratum 4102704 is a Cat B erratum that applies
to revisions r0p0, r1p0 and it is still open.

The erratum can be avoided by setting CPUACTLR4_EL1[23] to 1.
Overall expected performance degradation is ~1.36%, but
isolated benchmark components might see higher or lower impact.

SDEN documentation:
https://developer.arm.com/documentation/111078/latest

Change-Id: Id9b73799696a5ce04e656e07e4ddb548c5a7b042
Signed-off-by: Xialin Liu <xialin.liu@arm.com>

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fix(cpus): workaround for C1-Premium erratum 3926381

C1-Premium erratum 3926381 is a Cat B erratum that applies
to revision r1p0 and is still open.

This errata can be avoided by converting WFx and

fix(cpus): workaround for C1-Premium erratum 3926381

C1-Premium erratum 3926381 is a Cat B erratum that applies
to revision r1p0 and is still open.

This errata can be avoided by converting WFx and WFxT
instructions to NOP when PSTATE.SM=1. After it is applied,
the code only converts WFx and WFxT instructions to NOP when
PSTATE.SM=1 or when PSTATE.ZA=1.

SDEN documentation:
https://developer.arm.com/documentation/111078/8-0/?lang=en

Change-Id: I24483fa88c6292f6dbe2950ebef88eebb5cc4e8d
Signed-off-by: Xialin Liu <xialin.liu@arm.com>

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fix(cpus): workaround for C1-Premium erratum 3865171

C1-Premium erratum 3865171 is a Cat B erratum that applies
to revisions r0p0, r1p0 and is still open.

The erratum can be avoided by setting CPUA

fix(cpus): workaround for C1-Premium erratum 3865171

C1-Premium erratum 3865171 is a Cat B erratum that applies
to revisions r0p0, r1p0 and is still open.

The erratum can be avoided by setting CPUACTLR2_EL1[22] to 1,
which will disable linking multiple Non-Cacheable or Device
GRE loads to the same read request for the cache-line. This
might have a significant performance impact to Non-cacheable
and Device GRE read bandwidth for streaming scenarios.

SDEN documentation:
https://developer.arm.com/documentation/111078/latest

Change-Id: I0b97dfc1dd989e4d3e35716b0163b99c9719a0e6
Signed-off-by: Xialin Liu <xialin.liu@arm.com>

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fix(cpus): workaround for C1-Premium erratum 3815514

C1-Premium erratum 3815514 is a Cat B erratum that applies
to revisions r0p0, r1p0 and is still open.

The erratum can be avoided by setting CPUA

fix(cpus): workaround for C1-Premium erratum 3815514

C1-Premium erratum 3815514 is a Cat B erratum that applies
to revisions r0p0, r1p0 and is still open.

The erratum can be avoided by setting CPUACTLR5[13] to 1.
This is expected to result in a small performance degradation
for workloads that use MTE. The degradation might be
approximately 1.6% when using MTE imprecise mode or 0.9% for
MTE precise mode.

SDEN documentation:
https://developer.arm.com/documentation/111078/latest

Change-Id: Id52a1a077459bd16de16b1ae00fc783250d197ed
Signed-off-by: Xialin Liu <xialin.liu@arm.com>

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fix(cpus): workaround for C1-Premium erratum 3705939

C1-Premium erratum 3705939 is a Cat B erratum that applies
to revisions r0p0, r1p0 and is still open.

The erratum can be avoided by setting CPUA

fix(cpus): workaround for C1-Premium erratum 3705939

C1-Premium erratum 3705939 is a Cat B erratum that applies
to revisions r0p0, r1p0 and is still open.

The erratum can be avoided by setting CPUACTLR_EL1[48] to 1,
which disables a RDFFR optimization. Setting this bit has
negligible impact on GB6/SPECint performance, but will have an impact
on SVE RDFFR performance. Please contact Arm for more details.

SDEN documentation:
https://developer.arm.com/documentation/111078/latest

Change-Id: I4dc68f8fcb6275eab158c7fa6491536c62060ac0
Signed-off-by: Xialin Liu <xialin.liu@arm.com>

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fix(cpus): workaround for C1-Premium erratum 3684152

C1-Premium erratum 3684152 is a Cat B erratum that applies
to revision r0p0, and it is fixed in r1p0.

The erratum can be avoided by setting CPUA

fix(cpus): workaround for C1-Premium erratum 3684152

C1-Premium erratum 3684152 is a Cat B erratum that applies
to revision r0p0, and it is fixed in r1p0.

The erratum can be avoided by setting CPUACTLR_EL1[60:58] to
3'b001, which has a small performance impact.

SDEN documentation:
https://developer.arm.com/documentation/111078/latest

Change-Id: I2e677b0e6cf3ce453eae54300c5c0072d734a341
Signed-off-by: Xialin Liu <xialin.liu@arm.com>

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fix(cpus): workaround for C1-Premium erratum 3651221

C1-Premium erratum 3651221 is a Cat B erratum that applies
to revision r0p0, and it is fixed in r1p0.

The erratum can be avoided by disabling th

fix(cpus): workaround for C1-Premium erratum 3651221

C1-Premium erratum 3651221 is a Cat B erratum that applies
to revision r0p0, and it is fixed in r1p0.

The erratum can be avoided by disabling the affected prefetcher
setting CPUACTLR6_EL1[41] to 1.

SDEN documentation:
https://developer.arm.com/documentation/111078/latest

Change-Id: I5ebe282be8f88fb2fcc1d33cec9c1db144316077
Signed-off-by: Xialin Liu <xialin.liu@arm.com>

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fix(cpus): workaround for C1-Premium erratum 3502731

C1-Premium erratum 3502731 is a Cat B erratum that applies
to revision r0p0, and it is fixed in r1p0.

The erratum can be avoided by setting CPUA

fix(cpus): workaround for C1-Premium erratum 3502731

C1-Premium erratum 3502731 is a Cat B erratum that applies
to revision r0p0, and it is fixed in r1p0.

The erratum can be avoided by setting CPUACTLR4[23] to 1,
which will disable Memory Renaming optimization.
The performance impact of setting this chicken bit is about
0.82% in GB6.

SDEN documentation:
https://developer.arm.com/documentation/111078/latest

Change-Id: Idc6ec2a742ed0f974d026aa63d7c9c5b248ef33b
Signed-off-by: Xialin Liu <xialin.liu@arm.com>

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fix(cpus): workaround for Cortex-A720AE erratum 3456103

Cortex-A720AE erratum 3456103 is a Cat B erratum that applies
to revisions r0p0 and r0p1, and is still open.

This errata can be avoided by ad

fix(cpus): workaround for Cortex-A720AE erratum 3456103

Cortex-A720AE erratum 3456103 is a Cat B erratum that applies
to revisions r0p0 and r0p1, and is still open.

This errata can be avoided by adding a speculation barrier
instruction following writes to the SSBS register to
ensure the new value of PSTATE.SSBS affects the subsequent
instructions in the execution stream under speculation.

SDEN documentation:
https://developer.arm.com/documentation/SDEN-3090091

Change-Id: Ia240a697d8e99bd4fbf4c92720d5228513080088
Signed-off-by: John Powell <john.powell@arm.com>

show more ...

fix(cpus): workaround for Cortex-A720 erratum 3456091

Cortex-A720 erratum 3456091 is a Cat B erratum that applies
to revisions r0p0, r0p1 and r0p2, and is still open.

This errata can be avoided by

fix(cpus): workaround for Cortex-A720 erratum 3456091

Cortex-A720 erratum 3456091 is a Cat B erratum that applies
to revisions r0p0, r0p1 and r0p2, and is still open.

This errata can be avoided by adding a speculation barrier
instruction following writes to the SSBS register to
ensure the new value of PSTATE.SSBS affects the subsequent
instructions in the execution stream under speculation.

SDEN documentation:
https://developer.arm.com/documentation/SDEN-2439421

Change-Id: Ia22a0d6bb98d1a0edb11d2469beab22c7f7aba3a
Signed-off-by: John Powell <john.powell@arm.com>

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fix(cpus): workaround for Cortex-A715 erratum 3456084

Cortex-A715 erratum 3456084 is a Cat B erratum that applies
to revisions r0p0, r1p0, r1p1, r1p2 and r1p3, and is still open.

This errata can be

fix(cpus): workaround for Cortex-A715 erratum 3456084

Cortex-A715 erratum 3456084 is a Cat B erratum that applies
to revisions r0p0, r1p0, r1p1, r1p2 and r1p3, and is still open.

This errata can be avoided by adding a speculation barrier
instruction following writes to the SSBS register to
ensure the new value of PSTATE.SSBS affects the subsequent
instructions in the execution stream under speculation.

SDEN documentation:
https://developer.arm.com/documentation/SDEN-2148827

Change-Id: Ie3f2b46051539cdebc151c46f80045a7156e0386
Signed-off-by: John Powell <john.powell@arm.com>

show more ...

fix(cpus): workaround for Cortex-X2 erratum 3324338

Cortex-X2 erratum 3324338 is a Cat B erratum that applies
to revisions r0p0, r1p0, r2p0 and r2p1, and is still open.

This errata can be avoided b

fix(cpus): workaround for Cortex-X2 erratum 3324338

Cortex-X2 erratum 3324338 is a Cat B erratum that applies
to revisions r0p0, r1p0, r2p0 and r2p1, and is still open.

This errata can be avoided by adding a speculation barrier
instruction following writes to the SSBS register to
ensure the new value of PSTATE.SSBS affects the subsequent
instructions in the execution stream under speculation.

SDEN documentation:
https://developer.arm.com/documentation/SDEN-1775100

Change-Id: Ibbe55a55bd6cf5e159dab92a78ecb55c5a4d7eb1
Signed-off-by: John Powell <john.powell@arm.com>

show more ...

fix(cpus): workaround for Cortex-A710 erratum 3324338

Cortex-A710 erratum 3324338 is a Cat B erratum that applies
to revisions r0p0, r1p0, r2p0 and r2p1, and is still open.

This errata can be avoid

fix(cpus): workaround for Cortex-A710 erratum 3324338

Cortex-A710 erratum 3324338 is a Cat B erratum that applies
to revisions r0p0, r1p0, r2p0 and r2p1, and is still open.

This errata can be avoided by adding a speculation barrier
instruction following writes to the SSBS register to
ensure the new value of PSTATE.SSBS affects the subsequent
instructions in the execution stream under speculation.

SDEN documentation:
https://developer.arm.com/documentation/SDEN-1775101

Change-Id: I9325f3715f4fa17bfb7ded9d5c69c59645f65b27
Signed-off-by: John Powell <john.powell@arm.com>

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Merge changes from topic "xl/c1ultra-errata" into integration

* changes:
fix(cpus): workaround for C1-Ultra erratum 3324333
fix(cpus): workaround for C1-Ultra erratum 3658374
fix(cpus): workar

Merge changes from topic "xl/c1ultra-errata" into integration

* changes:
fix(cpus): workaround for C1-Ultra erratum 3324333
fix(cpus): workaround for C1-Ultra erratum 3658374
fix(cpus): workaround for C1-Ultra erratum 3926381
fix(cpus): workaround for C1-Ultra erratum 4102704
fix(cpus): workaround for C1-Ultra erratum 3865171
fix(cpus): workaround for C1-Ultra erratum 3815514
fix(cpus): workaround for C1-Ultra erratum 3705939
fix(cpus): workaround for C1-Ultra erratum 3684152
fix(cpus): workaround for C1-Ultra erratum 3651221
fix(cpus): workaround for C1-Ultra erratum 3502731

show more ...

fix(cpus): workaround for C1-Ultra erratum 3324333

C1-Ultra erratum 3324333 is a Cat B erratum that applies
to revision r0p0, and is fixed in r1p0.

This errata can be avoid by having a speculation

fix(cpus): workaround for C1-Ultra erratum 3324333

C1-Ultra erratum 3324333 is a Cat B erratum that applies
to revision r0p0, and is fixed in r1p0.

This errata can be avoid by having a speculation barrier
instruction following writes to the SSBS register to
ensure the new value of PSTATE.SSBS affects the subsequent
instructions in the execution stream under speculation.

SDEN documentation:
https://developer.arm.com/documentation/111077/8-0

Change-Id: I203238cbb8561cee683c22a6dbe4742702f82763
Signed-off-by: Xialin Liu <xialin.liu@arm.com>

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fix(cpus): workaround for C1-Ultra erratum 3658374

C1-Ultra erratum 3658374 is a Cat B erratum that applies
to revisions r0p0, r1p0 and is still open.

This is workaround for accessing ICH_VMCR_EL2.

fix(cpus): workaround for C1-Ultra erratum 3658374

C1-Ultra erratum 3658374 is a Cat B erratum that applies
to revisions r0p0, r1p0 and is still open.

This is workaround for accessing ICH_VMCR_EL2.
When ICH_VMCR_EL2.VBPR1 is written in Secure state (SCR_EL3.NS==0)
and then subsequently read in Non-secure state (SCR_EL3.NS==1), a
wrong value might be returned. The same issue exists in the opposite way.

Adding workaround in EL3 software that performs context save/restore
on a change of Security state to use a value of SCR_EL3.NS when
accessing ICH_VMCR_EL2 that reflects the Security state that owns the
data being saved or restored. For example, EL3 software should set
SCR_EL3.NS to 1 when saving or restoring the value ICH_VMCR_EL2 for
Non-secure(or Realm) state. EL3 software should clear
SCR_EL3.NS to 0 when saving or restoring the value ICH_VMCR_EL2 for
Secure state.

SDEN documentation:
https://developer.arm.com/documentation/111077/8-0

Change-Id: I945477b2432fefc04049e8576b66cea0cbffb03a
Signed-off-by: Xialin Liu <xialin.liu@arm.com>

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fix(cpus): workaround for C1-Ultra erratum 3926381

C1-Ultra erratum 3926381 is a Cat B erratum that applies
to revision r1p0 and is open.

This errata can be avoided by executing an implementation
s

fix(cpus): workaround for C1-Ultra erratum 3926381

C1-Ultra erratum 3926381 is a Cat B erratum that applies
to revision r1p0 and is open.

This errata can be avoided by executing an implementation
specific instruction patching sequence as soon as possible
after boot. After it is applied, the code only converts
WFx and WFxT instructions to NOP when PSTATE.SM=1 or when
PSTATE.ZA=1.

SDEN documentation:
https://developer.arm.com/documentation/111077/8-0

Change-Id: I2e0f3a715670aaac116c7d3c5f5992ff7ab05ba3
Signed-off-by: Xialin Liu <xialin.liu@arm.com>

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fix(cpus): workaround for C1-Ultra erratum 4102704

C1-Ultra erratum 4102704 is a Cat B erratum that applies
to revisions r0p0, r1p0 and is still open.

The erratum can be avoided by setting CPUACTLR

fix(cpus): workaround for C1-Ultra erratum 4102704

C1-Ultra erratum 4102704 is a Cat B erratum that applies
to revisions r0p0, r1p0 and is still open.

The erratum can be avoided by setting CPUACTLR4_EL1[23] to 1.
Overall expected performance degradation is ~1.36%, but
isolated benchmark components might see higher or lower impact.

SDEN documentation:
https://developer.arm.com/documentation/111077/8-0

Change-Id: I414df1af006484dd120f928bd8fdf9e6f4a513fd
Signed-off-by: Xialin Liu <xialin.liu@arm.com>

show more ...