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spapr: Drop duplicate PCI swizzle code

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LSI mapping in spapr currently open-codes standard PCI swizzling. It thus
duplicates the code of pci_swizzle_map_irq_fn().

Expose the swizzling formula so that it can be used with a slot number
when building the device tree. Simply drop pci_spapr_map_irq() and call
pci_swizzle_map_irq_fn() instead.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <155448184841.8446.13959787238854054119.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Greg Kurz 2019-04-05 18:30:48 +02:00 • committed by David Gibson
parent c413605ba6
commit e8ec4adfe2
3 changed files with 9 additions and 21 deletions
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2
hw/pci/pci.c
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@ -1556,7 +1556,7 @@ void pci_device_set_intx_routing_notifier(PCIDevice *dev,
*/
int pci_swizzle_map_irq_fn(PCIDevice *pci_dev, int pin)
{
return (pin + PCI_SLOT(pci_dev->devfn)) % PCI_NUM_PINS;
return pci_swizzle(PCI_SLOT(pci_dev->devfn), pin);
}
/***********************************************************/