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authorMarc Zyngier <maz@kernel.org>2019-12-24 14:10:24 +0300
committerMarc Zyngier <maz@kernel.org>2020-01-22 17:22:19 +0300
commitb25319d279b63781b972c4966b4082193e69afac (patch)
tree82057199c3ef28140a514429adac51f836e172c4 /block/bfq-iosched.h
parent093bf439fee0d40ade7e309c1288b409cdc3b38f (diff)
downloadlinux-b25319d279b63781b972c4966b4082193e69afac.tar.xz
irqchip/gic-v3: Detect GICv4.1 supporting RVPEID
GICv4.1 supports the RVPEID ("Residency per vPE ID"), which allows for a much efficient way of making virtual CPUs resident (to allow direct injection of interrupts). The functionnality needs to be discovered on each and every redistributor in the system, and disabled if the settings are inconsistent. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Zenghui Yu <yuzenghui@huawei.com> Link: https://lore.kernel.org/r/20191224111055.11836-2-maz@kernel.org
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