diff options
Diffstat (limited to 'drivers/pci')
-rw-r--r-- | drivers/pci/setup-bus.c | 62 |
1 files changed, 1 insertions, 61 deletions
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index dc6a30ee6edf..b4096598dbcb 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -1768,10 +1768,7 @@ static void adjust_bridge_window(struct pci_dev *bridge, struct resource *res, } res->end = res->start + new_size - 1; - - /* If the resource is part of the add_list remove it now */ - if (add_list) - remove_from_list(add_list, res); + remove_from_list(add_list, res); } static void pci_bus_distribute_available_resources(struct pci_bus *bus, @@ -1926,8 +1923,6 @@ static void pci_bridge_distribute_available_resources(struct pci_dev *bridge, if (!bridge->is_hotplug_bridge) return; - pci_dbg(bridge, "distributing available resources\n"); - /* Take the initial extra resources from the hotplug port */ available_io = bridge->resource[PCI_BRIDGE_IO_WINDOW]; available_mmio = bridge->resource[PCI_BRIDGE_MEM_WINDOW]; @@ -1939,59 +1934,6 @@ static void pci_bridge_distribute_available_resources(struct pci_dev *bridge, available_mmio_pref); } -static bool pci_bridge_resources_not_assigned(struct pci_dev *dev) -{ - const struct resource *r; - - /* - * Check the child device's resources and if they are not yet - * assigned it means we are configuring them (not the boot - * firmware) so we should be able to extend the upstream - * bridge's (that's the hotplug downstream PCIe port) resources - * in the same way we do with the normal hotplug case. - */ - r = &dev->resource[PCI_BRIDGE_IO_WINDOW]; - if (!r->flags || !(r->flags & IORESOURCE_STARTALIGN)) - return false; - r = &dev->resource[PCI_BRIDGE_MEM_WINDOW]; - if (!r->flags || !(r->flags & IORESOURCE_STARTALIGN)) - return false; - r = &dev->resource[PCI_BRIDGE_PREF_MEM_WINDOW]; - if (!r->flags || !(r->flags & IORESOURCE_STARTALIGN)) - return false; - - return true; -} - -static void pci_root_bus_distribute_available_resources(struct pci_bus *bus, - struct list_head *add_list) -{ - struct pci_dev *dev, *bridge = bus->self; - - for_each_pci_bridge(dev, bus) { - struct pci_bus *b; - - b = dev->subordinate; - if (!b) - continue; - - /* - * Need to check "bridge" here too because it is NULL - * in case of root bus. - */ - if (bridge && pci_bridge_resources_not_assigned(dev)) { - pci_bridge_distribute_available_resources(bridge, add_list); - /* - * There is only PCIe upstream port on the bus - * so we don't need to go futher. - */ - return; - } - - pci_root_bus_distribute_available_resources(b, add_list); - } -} - /* * First try will not touch PCI bridge res. * Second and later try will clear small leaf bridge res. @@ -2031,8 +1973,6 @@ again: */ __pci_bus_size_bridges(bus, add_list); - pci_root_bus_distribute_available_resources(bus, add_list); - /* Depth last, allocate resources and update the hardware. */ __pci_bus_assign_resources(bus, add_list, &fail_head); if (add_list) |