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authorIan Campbell <ian.campbell@citrix.com>2012-10-09 15:05:40 +0100
committerIan Campbell <ian.campbell@citrix.com>2012-10-09 15:05:40 +0100
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arm: Use per-CPU irq_desc for PPIs and SGIs
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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