On Tuesday 15 January 2013, Thierry Reding wrote: > I'm not sure I follow you're reasoning here. Is it possible to use MSIs > without PCI? If not then I think there's little sense in keeping the > implementations separate. Conceptually, you can use MSI for any device, but the Linux interfaces for MSI are tied to PCI. If you use an MSI controller for a non-PCI device, it would probably just appear as a regular interrupt controller. > Furthermore, if MSI controller and PCI host bridge are separate entities > how do you look up the MSI controller given a PCI device? The host bridge can contain a pointer ot the MSI controller. You can have multiple host bridges sharing a single MSI controller or you can have separate ones for each host. Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
