Messages in this thread | | | Subject | Re: PCIE | From | Roland Dreier <> | Date | Sun, 27 May 2007 18:05:43 -0700 |
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> Presumably we need something like IRQF_MSI which can be set as > appropriate depending on the architecture?
Unfortunately I don't think it's that simple -- drivers would have to do something like
if (IRQF_MSI == IRQF_SHARED) { // lose MSI optimizations, do an MMIO read, etc. } else...
As I said I think that if we're running on a system where MSI interrupts might be shared, we should just have pci_enable_msi() fail so drivers fall back to their usual interrupt handler. - 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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