History log of /rk3399_ARM-atf/include/lib/cpus/aarch64/c1_premium.h (Results 1 – 10 of 10)
Revision Date Author Comments
# 410fc4b5 18-Dec-2025 Govindraj Raja <govindraj.raja@arm.com>

Merge changes from topic "xl/c1premium-errata" into integration

* changes:
fix(cpus): workaround for C1-Premium erratum 3324333
fix(cpus): workaround for C1-Premium erratum 4102704
fix(cpus):

Merge changes from topic "xl/c1premium-errata" into integration

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

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# 99b23d8a 11-Dec-2025 Xialin Liu <xialin.liu@arm.com>

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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# f5bd742a 10-Dec-2025 Xialin Liu <xialin.liu@arm.com>

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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# 20fe6fb0 10-Dec-2025 Xialin Liu <xialin.liu@arm.com>

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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# 350a8a78 10-Dec-2025 Xialin Liu <xialin.liu@arm.com>

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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# 37e3b5f6 10-Dec-2025 Xialin Liu <xialin.liu@arm.com>

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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# ac1d0524 05-Dec-2025 Govindraj Raja <govindraj.raja@arm.com>

Merge changes from topic "ar/smccc_arch_wa_4" into integration

* changes:
docs(security): update CVE-2024-7881 affected CPUs list
fix(security): add CVE-2024-7881 mitigation to C1-Ultra CPU
fi

Merge changes from topic "ar/smccc_arch_wa_4" into integration

* changes:
docs(security): update CVE-2024-7881 affected CPUs list
fix(security): add CVE-2024-7881 mitigation to C1-Ultra CPU
fix(security): add CVE-2024-7881 mitigation to C1-Pro CPU
fix(security): add CVE-2024-7881 mitigation to C1-Premium CPU
docs(security): add CVE-2024-5660 and CVE-2024-7881 reference links

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# 83ad6bae 14-Nov-2025 Arvind Ram Prakash <arvind.ramprakash@arm.com>

fix(security): add CVE-2024-7881 mitigation to C1-Premium CPU

This patch mitigates Cat B erratum 3651221 [2] / CVE-2024-7881 [1]
for C1-Premium CPU. This CVE applies to r0p0 and
is fixed in r1p0 [2]

fix(security): add CVE-2024-7881 mitigation to C1-Premium CPU

This patch mitigates Cat B erratum 3651221 [2] / CVE-2024-7881 [1]
for C1-Premium CPU. This CVE applies to r0p0 and
is fixed in r1p0 [2].

This CVE can be mitigated by disabling the affected prefetcher
setting CPUACTLR6_EL1[41].

[1] https://developer.arm.com/documentation/110326/latest/
[2] https://developer.arm.com/documentation/111078/latest/

Signed-off-by: Arvind Ram Prakash <arvind.ramprakash@arm.com>
Change-Id: I70b50700bc1618e0f8f4121efc9fe89e2742ed74

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# cd30f9f8 18-Sep-2025 Govindraj Raja <govindraj.raja@arm.com>

Merge "chore(tc): align core names to Arm Lumex" into integration


# 7dae0451 04-Sep-2025 Min Yao Ng <minyao.ng@arm.com>

chore(tc): align core names to Arm Lumex

Adopt core names aligned to Arm Lumex [1]

Nevis => C1-Nano
Gelas => C1-Pro
Travis => C1-Ultra
Alto => C1-Premium

C1-Pro TRM: https://developer.arm.com/docu

chore(tc): align core names to Arm Lumex

Adopt core names aligned to Arm Lumex [1]

Nevis => C1-Nano
Gelas => C1-Pro
Travis => C1-Ultra
Alto => C1-Premium

C1-Pro TRM: https://developer.arm.com/documentation/107771/0102/
C1-Ultra TRM: https://developer.arm.com/documentation/108014/0100/
C1-Premium TRM: https://developer.arm.com/documentation/109416/0100/
C1-Nano TRM: https://developer.arm.com/documentation/107753/0001/

[1]:
https://www.arm.com/product-filter?families=c1%20cpus
https://www.arm.com/products/mobile/compute-subsystems/lumex

Signed-off-by: Min Yao Ng <minyao.ng@arm.com>
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: Id4b487ef6a6fd1b00b75b09c5d06d81bce50a15d
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>

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