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由 Marc Zyngier 提交于
In order to reduce the cost of TLB invalidation, the ARMv8.4 TTL feature allows TLBs to be issued with a level allowing for quicker invalidation. Let's detect the feature for now. Further patches will implement its actual usage. Reviewed-by : Suzuki K Polose <suzuki.poulose@arm.com> Reviewed-by: NCatalin Marinas <catalin.marinas@arm.com> Signed-off-by: NMarc Zyngier <maz@kernel.org>
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