Commit 05f57d9d authored by Alexander Graf's avatar Alexander Graf
Browse files

PPC: E500: PCI: Make IRQ calculation more generic 



The IRQ line calculation is more or less hardcoded today. Instead, let's
write it as an algorithmic function that theoretically allows an arbitrary
number of PCI slots.

Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
parent eafb325f

hw/ppce500_pci.c

+3 −10
Original line number Diff line number Diff line
@@ -253,17 +253,10 @@ static const MemoryRegionOps e500_pci_reg_ops = { 


static int mpc85xx_pci_map_irq(PCIDevice *pci_dev, int irq_num)

{

    int devno = pci_dev->devfn >> 3, ret = 0;

    int devno = pci_dev->devfn >> 3;

    int ret;



    switch (devno) {

        /* Two PCI slot */

        case 0x11:

        case 0x12:

            ret = (irq_num + devno - 0x10) % 4;

            break;

        default:

            printf("Error:%s:unknown dev number\n", __func__);

    }

    ret = (irq_num + devno) % 4;



    pci_debug("%s: devfn %x irq %d -> %d  devno:%x\n", __func__,

           pci_dev->devfn, irq_num, ret, devno);