Merge tag 'pci-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI changes from Bjorn Helgaas:
 - Host bridge cleanups from Yinghai
 - Disable Bus Master bit on PCI device shutdown (kexec-related)
 - Stratus ftServer fix
 - pci_dev_reset() locking fix
 - IvyBridge graphics erratum workaround

* tag 'pci-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (21 commits)
  microblaze/PCI: fix "io_offset undeclared" error
  x86/PCI: only check for spinlock being held in SMP kernels
  resources: add resource_overlaps()
  PCI: fix uninitialized variable 'cap_mask'
  MAINTAINERS: update PCI git tree and patchwork
  PCI: disable Bus Master on PCI device shutdown
  PCI: work around IvyBridge internal graphics FLR erratum
  x86/PCI: fix unused variable warning in amd_bus.c
  PCI: move mutex locking out of pci_dev_reset function
  PCI: work around Stratus ftServer broken PCIe hierarchy
  x86/PCI: merge pcibios_scan_root() and pci_scan_bus_on_node()
  x86/PCI: dynamically allocate pci_root_info for native host bridge drivers
  x86/PCI: embed pci_sysdata into pci_root_info on ACPI path
  x86/PCI: embed name into pci_root_info struct
  x86/PCI: add host bridge resource release for _CRS path
  x86/PCI: refactor get_current_resources()
  PCI: add host bridge release support
  PCI: add generic device into pci_host_bridge struct
  PCI: rename pci_host_bridge() to find_pci_root_bridge()
  x86/PCI: fix memleak with get_current_resources()
  ...

3 files changed, 21 insertions, 1 deletions

diff --git a/include/asm-generic/pci-bridge.h b/include/asm-generic/pci-bridge.h
index a5b5d5a..20db2e5 100644
--- a/include/asm-generic/pci-bridge.h
+++ b/include/asm-generic/pci-bridge.h
@@ -30,6 +30,12 @@ enum {
 	PCI_ENABLE_PROC_DOMAINS	= 0x00000010,
 	/* ... except for domain 0 */
 	PCI_COMPAT_DOMAIN_0	= 0x00000020,
+
+	/* PCIe downstream ports are bridges that normally lead to only a
+	 * device 0, but if this is set, we scan all possible devices, not
+	 * just device 0.
+	 */
+	PCI_SCAN_ALL_PCIE_DEVS	= 0x00000040,
 };
 
 #ifdef CONFIG_PCI
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index e885ba23..589e0e7 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -223,5 +223,12 @@ extern int
 walk_system_ram_range(unsigned long start_pfn, unsigned long nr_pages,
 		void *arg, int (*func)(unsigned long, unsigned long, void *));
 
+/* True if any part of r1 overlaps r2 */
+static inline bool resource_overlaps(struct resource *r1, struct resource *r2)
+{
+       return (r1->start <= r2->end && r1->end >= r2->start);
+}
+
+
 #endif /* __ASSEMBLY__ */
 #endif	/* _LINUX_IOPORT_H */
diff --git a/include/linux/pci.h b/include/linux/pci.h
index e444f5b..17b7b5b 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -375,11 +375,18 @@ struct pci_host_bridge_window {
 };
 
 struct pci_host_bridge {
-	struct list_head list;
+	struct device dev;
 	struct pci_bus *bus;		/* root bus */
 	struct list_head windows;	/* pci_host_bridge_windows */
+	void (*release_fn)(struct pci_host_bridge *);
+	void *release_data;
 };
 
+#define	to_pci_host_bridge(n) container_of(n, struct pci_host_bridge, dev)
+void pci_set_host_bridge_release(struct pci_host_bridge *bridge,
+		     void (*release_fn)(struct pci_host_bridge *),
+		     void *release_data);
+
 /*
  * The first PCI_BRIDGE_RESOURCE_NUM PCI bus resources (those that correspond
  * to P2P or CardBus bridge windows) go in a table.  Additional ones (for