PCI: add host bridge release support
We need a hook to release host bridge resources allocated when creating root bus. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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@ -27,6 +27,14 @@ static struct pci_host_bridge *find_pci_host_bridge(struct pci_dev *dev)
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return to_pci_host_bridge(bus->bridge);
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return to_pci_host_bridge(bus->bridge);
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}
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}
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void pci_set_host_bridge_release(struct pci_host_bridge *bridge,
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void (*release_fn)(struct pci_host_bridge *),
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void *release_data)
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{
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bridge->release_fn = release_fn;
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bridge->release_data = release_data;
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}
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static bool resource_contains(struct resource *res1, struct resource *res2)
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static bool resource_contains(struct resource *res1, struct resource *res2)
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{
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{
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return res1->start <= res2->start && res1->end >= res2->end;
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return res1->start <= res2->start && res1->end >= res2->end;
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@ -1137,7 +1137,8 @@ static void pci_release_bus_bridge_dev(struct device *dev)
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{
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{
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struct pci_host_bridge *bridge = to_pci_host_bridge(dev);
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struct pci_host_bridge *bridge = to_pci_host_bridge(dev);
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/* TODO: need to free window->res */
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if (bridge->release_fn)
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bridge->release_fn(bridge);
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pci_free_resource_list(&bridge->windows);
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pci_free_resource_list(&bridge->windows);
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@ -378,9 +378,14 @@ struct pci_host_bridge {
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struct device dev;
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struct device dev;
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struct pci_bus *bus; /* root bus */
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struct pci_bus *bus; /* root bus */
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struct list_head windows; /* pci_host_bridge_windows */
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struct list_head windows; /* pci_host_bridge_windows */
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void (*release_fn)(struct pci_host_bridge *);
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void *release_data;
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};
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};
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#define to_pci_host_bridge(n) container_of(n, struct pci_host_bridge, dev)
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#define to_pci_host_bridge(n) container_of(n, struct pci_host_bridge, dev)
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void pci_set_host_bridge_release(struct pci_host_bridge *bridge,
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void (*release_fn)(struct pci_host_bridge *),
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void *release_data);
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/*
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/*
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* The first PCI_BRIDGE_RESOURCE_NUM PCI bus resources (those that correspond
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* The first PCI_BRIDGE_RESOURCE_NUM PCI bus resources (those that correspond
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