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(parent: 3841245) | patch
irqchip/gic-v4.1: Reduce the delay when polling GICR_VPENDBASER.Dirty
authorShenming Lu <lushenming@huawei.com>
Sat, 28 Nov 2020 14:18:56 +0000 (22:18 +0800)
committerMarc Zyngier <maz@kernel.org>
Fri, 11 Dec 2020 14:47:10 +0000 (14:47 +0000)
commit0b39498230ae53e6af981141be99f4c7d5144de6
tree3f0629ad35d303ffedf4b195ececfac9b230cff6tree | snapshot
parent3841245e8498a789c65dedd7ffa8fb2fee2c0684commit | diff
irqchip/gic-v4.1: Reduce the delay when polling GICR_VPENDBASER.Dirty

The 10us delay of the poll on the GICR_VPENDBASER.Dirty bit is too
high, which might greatly affect the total scheduling latency of a
vCPU in our measurement. So we reduce it to 1 to lessen the impact.

Signed-off-by: Shenming Lu <lushenming@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201128141857.983-2-lushenming@huawei.com
drivers/irqchip/irq-gic-v3-its.c diff | blob | history
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