Use pci_get_bus_and_slot to find the router (and lock it for the kernel
lifetime), also use pci_get_device_reverse() to walk the list finding
calgary IOMMUs
Signed-off-by: Alan Cox <[email protected]>
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.19-rc1-mm1/arch/i386/pci/irq.c linux-2.6.19-rc1-mm1/arch/i386/pci/irq.c
--- linux.vanilla-2.6.19-rc1-mm1/arch/i386/pci/irq.c 2006-10-13 15:10:06.000000000 +0100
+++ linux-2.6.19-rc1-mm1/arch/i386/pci/irq.c 2006-10-13 17:14:40.000000000 +0100
@@ -758,7 +758,7 @@
DBG(KERN_DEBUG "PCI: Attempting to find IRQ router for %04x:%04x\n",
rt->rtr_vendor, rt->rtr_device);
- pirq_router_dev = pci_find_slot(rt->rtr_bus, rt->rtr_devfn);
+ pirq_router_dev = pci_get_bus_and_slot(rt->rtr_bus, rt->rtr_devfn);
if (!pirq_router_dev) {
DBG(KERN_DEBUG "PCI: Interrupt router not found at "
"%02x:%02x\n", rt->rtr_bus, rt->rtr_devfn);
@@ -778,6 +778,8 @@
pirq_router_dev->vendor,
pirq_router_dev->device,
pci_name(pirq_router_dev));
+
+ /* The device remains referenced for the kernel lifetime */
}
static struct irq_info *pirq_get_info(struct pci_dev *dev)
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.19-rc1-mm1/arch/x86_64/kernel/pci-calgary.c linux-2.6.19-rc1-mm1/arch/x86_64/kernel/pci-calgary.c
--- linux.vanilla-2.6.19-rc1-mm1/arch/x86_64/kernel/pci-calgary.c 2006-10-13 15:10:06.000000000 +0100
+++ linux-2.6.19-rc1-mm1/arch/x86_64/kernel/pci-calgary.c 2006-10-13 17:14:40.000000000 +0100
@@ -879,7 +879,7 @@
error:
do {
- dev = pci_find_device_reverse(PCI_VENDOR_ID_IBM,
+ dev = pci_get_device_reverse(PCI_VENDOR_ID_IBM,
PCI_DEVICE_ID_IBM_CALGARY,
dev);
if (!dev)
-
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