arm64: errata: Factor out broken AMU const counter cap

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Move the workaround from the erratum 2457168-specific cpucap to a generic
broken AMU constant-counter one. This keeps the existing Cortex-A510
handling unchanged while allowing other errata with similar AMU constant
counter issue to share the capability bit and call sites.

Signed-off-by: Beata Michalska <beata.michalska@arm.com>
Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>

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Beata Michalska 2026-10-01 11:00:31 +02:00 • committed by Will Deacon

parent 3872cc6b92

commit 573371caf7

5 changed files with 28 additions and 11 deletions

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8

arch/arm64/Kconfig

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20

arch/arm64/kernel/cpu_errata.c

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2

arch/arm64/kernel/cpufeature.c

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7

arch/arm64/kernel/topology.c

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2

arch/arm64/tools/cpucaps

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