f3a059219b
Before GICv4.1, all operations would be serialized with the affinity changes by virtue of using the same ITS command queue. With v4.1, things change, as invalidations (and a number of other operations) are issued using the redistributor MMIO frame. We must thus make sure that these redistributor accesses cannot race against aginst the affinity change, or we may end-up talking to the wrong redistributor. To ensure this, we expand the irq_to_cpuid() helper to take a spinlock when the LPI is mapped to a vLPI (a new per-VPE lock) on each operation that requires mutual exclusion. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Zenghui Yu <yuzenghui@huawei.com> Link: https://lore.kernel.org/r/20200304203330.4967-4-maz@kernel.org |
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| .. | ||
| arm-gic-common.h | ||
| arm-gic-v3.h | ||
| arm-gic-v4.h | ||
| arm-gic.h | ||
| arm-vic.h | ||
| chained_irq.h | ||
| irq-bcm2836.h | ||
| irq-davinci-aintc.h | ||
| irq-davinci-cp-intc.h | ||
| irq-ixp4xx.h | ||
| irq-madera.h | ||
| irq-omap-intc.h | ||
| irq-partition-percpu.h | ||
| irq-sa11x0.h | ||
| mmp.h | ||
| mxs.h | ||
| versatile-fpga.h | ||
| xtensa-mx.h | ||
| xtensa-pic.h | ||