Marc Zyngier 20b3d54ecb irqchip/gic-v3-its: Add device proxy for VPE management if !DirectLpi ... When we don't have the DirectLPI feature, we must work around the architecture shortcomings to be able to perform the required maintenance (interrupt masking, clearing and injection). For this, we create a fake device whose sole purpose is to provide a way to issue commands as if we were dealing with LPIs coming from that device (while they actually originate from the ITS). This fake device doesn't have LPIs allocated to it, but instead uses the VPE LPIs. Of course, this could be a real bottleneck, and a naive implementation would require 6 commands to issue an invalidation. Instead, let's allocate at least one event per physical CPU (rounded up to the next power of 2), and opportunistically map the VPE doorbell to an event. This doorbell will be mapped until we roll over and need to reallocate this slot. This ensures that most of the time, we only need 2 commands to issue an INV, INT or CLEAR, making the performance a lot better, given that we always issue a CLEAR on entry, and an INV on each side of a trapped WFI. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>		2017-08-31 15:31:39 +01:00
..
arm-gic-common.h	irqchip/gic-v3: Parse and export virtual GIC information	2016-05-03 12:54:21 +02:00
arm-gic-v3.h	irqchip/gic-v3-its: Add VPE scheduling	2017-08-31 15:31:36 +01:00
arm-gic-v4.h	irqchip/gic-v3-its: Add device proxy for VPE management if !DirectLpi	2017-08-31 15:31:39 +01:00
arm-gic.h	KVM: arm/arm64: Fix isues with GICv2 on GICv3 migration	2017-05-24 09:44:07 +02:00
arm-vic.h
chained_irq.h
ingenic.h
irq-omap-intc.h
irq-partition-percpu.h	irqchip: Add per-cpu interrupt partitioning library	2016-05-02 13:42:51 +02:00
irq-sa11x0.h
metag-ext.h
metag.h
mips-gic.h	Clocksource/mips-gic: Remove redundant non devicetree init	2017-04-20 14:56:59 +02:00
mmp.h
mxs.h
versatile-fpga.h
xtensa-mx.h
xtensa-pic.h