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The irqflags parameter appears to be an unused vestigial parameter right from
the integration of the IOMMU code in 2007. The parameter is 0 at all
callsites and never used.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Campbell <Ian.Campbell@citrix.com>
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This function will replace request_irq in a later patch. It takes a dt_irq
as first argument instead of an unsigned int.
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
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This function will replace setup_irq in later patch. It takes a dt_irq
as first argument instead of an unsigned int.
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
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We need to write the irq number to GICC_DIR on the physical cpu that
previously received the interrupt, but currently we are doing it on the
pcpu that received the maintenance interrupt. As a consequence if a
vcpu is migrated to a different pcpu, the irq is going to be EOI'ed on
the wrong pcpu.
This covers the case where dom0 vcpu0 is running on pcpu1 for example
(you can test this scenario by using xl vcpu-pin).
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
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The emacs variable to set the C style from a local variable block is
c-file-style, not c-set-style.
Signed-off-by: David Vrabel <david.vrabel@citrix.com
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The concept is X86 specific.
AFAICT the generic concept here is the number of static physical IRQs
which the current hardware has, so call this nr_static_irqs.
Also using "defined NR_IRQS" as a standin for x86 might have made
sense at one point but its just cleaner to push the necessary
definitions into asm/irq.h.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Keir Fraser <keir@xen.org>
Acked-by: Jan Beulich <jbeulich@suse.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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The first 32 interrupts on a GIC are the Peripheral Private Interrupts
and Software-Generated Interrupts and are local to each processor.
The irq_desc cannot be shared since we use irq_desc->status to track
whether the IRQ is in-progress etc. Therefore give each processor its
own local irq_desc for each of these interupts.
We must also route them on each CPU, so do so.
This feels like a bit of a layering violation (since the core ARM
irq.c now knows about thinkgs wich are really gic.c business)
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Tim Deegan <tim@xen.org>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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A simple do_IRQ and request_irq implementation for ARM.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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