• Benjamin Herrenschmidt's avatar
    [POWERPC] Make pci_read_irq_line the default · f90bb153
    Benjamin Herrenschmidt authored
    This patch reworks the way IRQs are fixed up on PCI for arch powerpc.
    It makes pci_read_irq_line() called by default in the PCI code for
    devices that are probed, and add an optional per-device fixup in
    ppc_md for platforms that really need to correct what they obtain
    from pci_read_irq_line().
    It also removes ppc_md.irq_bus_setup which was only used by pSeries
    and should not be needed anymore.
    I've also removed the pSeries s7a workaround as it can't work with
    the current interrupt code anyway. I'm trying to get one of these
    machines working so I can test a proper fix for that problem.
    I also haven't updated the old-style fixup code from 85xx_cds.c
    because it's actually buggy :) It assigns pci_dev->irq hard coded
    numbers which is no good with the new IRQ mapping code. It should
    at least use irq_create_mapping(NULL, hard_coded_number); and possibly
    also set_irq_type() to set them as level low.
    Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
    Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
pci.c 4.37 KB