Re: [PATCH v2 09/19] genirq: Add a new function to get IPI reverse mapping

From: Qais Yousef
Date: Tue Dec 01 2015 - 05:47:14 EST


On 11/30/2015 11:59 AM, Qais Yousef wrote:
On 11/30/2015 11:22 AM, Thomas Gleixner wrote:
Well, the question is why can't those functions not all use the raw
hardware irq. We have it in irq_data exactly to avoid calculations in
the hot path functions.



I'll see what I can do as part of this series. I think I can fix the new IPI and device domains, but can't promise about the root gic domain. It might be too big of a change for this series.


Unfortunately this is more work than I can afford putting into it right now. Can we have this fix coming in later? It shouldn't affect anything in this series.

The major issue here is that I need to split the root domain into shared and local so that each will have its linear hwirq space therefore get rid of the conversion macros.

BUT, the DT binding will break if I do this. I can't think of a simple way to keep the existing binding and do the split. Not without hackery and more magic at least which I don't think would be a better alternative.

Thanks,
Qais
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