Messages in this thread | | | Date | Thu, 13 Nov 2008 14:23:43 -0800 (PST) | Subject | Re: [PATCH] sparse_irq aka dyn_irq v13 | From | David Miller <> |
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From: Paul Mackerras <paulus@samba.org> Date: Fri, 14 Nov 2008 09:19:13 +1100
> Andrew Morton writes: > > > Other architectures want (or have) sparse interrupts. Are those guys > > paying attention here? > > On powerpc we have a mapping from virtual irq numbers (in the range 0 > to NR_IRQS-1) to physical irq numbers (which can be anything) and back > again. I think our approach is simpler than what's being proposed > here, though we don't try to keep the irqdescs node-local as this > patch seems to (fortunately our big systems aren't so NUMA-ish as to > make that necessary).
This is exactly what sparc64 does as well, same as powerpc, and as Paul said it's so much incredibly simpler than the dyn_irq stuff.
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