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David Miller wrote: > >> i presume then i shouldn't be using IRQF_SHARED, if using MSI. > > That's actually a really good question. > > It is likely architecture dependant whether the PCI controller wires > unique MSI interrupts to shared cpu interrupt lines. > > I can imagine many systems where the cpu simply doesn't have enough > interrupt pins to uniquely identify every possible MSI interrupt > source. There are systems which only get a single bit indication that an MSI has happened. Presumably we need something like IRQF_MSI which can be set as appropriate depending on the architecture? -hpa - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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