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    SubjectRe: [PATCH v2 09/19] genirq: Add a new function to get IPI reverse mapping
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    On 11/30/2015 11:22 AM, Thomas Gleixner wrote:
    > 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.
    >


    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.

    Thanks,
    Qais


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