On Wed, May 11, 2011 at 7:43 AM, Milton Miller <milt...@bga.com> wrote: [...] > After doing a bunch of grep's on arch/sh, I think the interesting > parts of super8 interrupt handling that Thomas referred to are in > drivers/sh/intc. For some reason they populate the radix tree first > with a descriptor of their common interrupt controler abstraction > then walk the tree, replacing the tagged elements with the pointer > to their equivalent to irq_map. I do not yet understand the purpose > of this two phase allocation.
BTW, you can also write a patch now that eliminates irq_map entirely. I just talked to tglx today and we agree in principle to move the hwirq value and irq_domain pointer directly into irq_data (and hence directly accessible from the irq_desc). The final form of irq_domain is still up in the air, but you could do an initial patch that leaves it as platform defined, and it can be followed up with a patch series that creates a common irq_domain definition. g. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
