Messages in this thread | | | Date | Mon, 30 Nov 2015 12:22:15 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: [PATCH v2 09/19] genirq: Add a new function to get IPI reverse mapping |
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On Mon, 30 Nov 2015, Qais Yousef wrote: > On 11/30/2015 10:40 AM, Thomas Gleixner wrote: > > On Fri, 27 Nov 2015, Qais Yousef wrote: > > > While trying to get my remoteproc driver work with this I uncovered a > > > problem > > > with this approach. > > > > > > mips-gic doesn't store the actual hwirq in the irq_data. It uses > > > GIC_SHARED_TO_HWIRQ() and GIC_HWIRQ_TO_SHARED() to add and remove an > > > offset. > > Why can't MIPS store the real hwirq number in irq_data? > > > I'm wary of ending up in inconsistency hell where some functions need to deal > with raw hwirq and others with translated ones. > > I will give this a go first and see if it gets really ugly.
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.
Thanks,
tglx
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