On Tue, Feb 12, 2013 at 6:20 PM, Peter Hurley <peter@xxxxxxxxxxxxxxxxxx> wrote: > On Tue, 2013-02-12 at 11:11 -0800, Yinghai Lu wrote: >> Peter Hurley found "irq 18 nobody cared" with pci-next, and dmesg has >> >> [ 8.983246] pci 0000:00:1e.0: can't derive routing for PCI INT A >> [ 8.983600] snd_ctxfi 0000:09:02.0: PCI INT A: no GSI - using ISA IRQ 5 >> >> bisect to >> | commit 4f535093cf8f6da8cfda7c36c2c1ecd2e9586ee4 >> | PCI: Put pci_dev in device tree as early as possible >> >> It turns out we need to call acpi_pci_irq_add_prt() after the pci bridges >> are scanned. >> >> Bjorn said: >> The bus number binding means acpi_pci_irq_add_prt() has to happen >> after enumerating everything below a bridge, and it will prevent us >> from doing any bus number reassignment for hotplug. >> >> I think we should remove the bus numbers from the cached _PRT (or >> maybe even remove the _PRT caching completely). When we enable a PCI >> device's IRQ, we should search up the PCI device tree looking for a >> _PRT associated with each node, and applying normal PCI bridge >> swizzling when we don't find a _PRT. I think this can be done without >> using PCI bus numbers at all. >> >> So here we try to remove _PRT caching completely. >> >> -v2: check !handle early. >> >> Reported-and-tested-by: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx> > > Actually true now :) > > Reported-and-tested-by: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx> Thanks. > PS - I just happened to see this version on the list. Would you please > cc me on any future versions? oh, my fault. I take it for granted that "git send-email" will pick that email from patch just like Cc. Yinghai -- 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
