Merge tag 'for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI update from Bjorn Helgaas:
 "Host bridge hotplug:
   - Untangle _PRT from struct pci_bus (Bjorn Helgaas)
   - Request _OSC control before scanning root bus (Taku Izumi)
   - Assign resources when adding host bridge (Yinghai Lu)
   - Remove root bus when removing host bridge (Yinghai Lu)
   - Remove _PRT during hot remove (Yinghai Lu)

  SRIOV
    - Add sysfs knobs to control numVFs (Don Dutile)

  Power management
   - Notify devices when power resource turned on (Huang Ying)

  Bug fixes
   - Work around broken _SEG on HP xw9300 (Bjorn Helgaas)
   - Keep runtime PM enabled for unbound PCI devices (Huang Ying)
   - Fix Optimus dual-GPU runtime D3 suspend issue (Dave Airlie)
   - Fix xen frontend shutdown issue (David Vrabel)
   - Work around PLX PCI 9050 BAR alignment erratum (Ian Abbott)

  Miscellaneous
   - Add GPL license for drivers/pci/ioapic (Andrew Cooks)
   - Add standard PCI-X, PCIe ASPM register #defines (Bjorn Helgaas)
   - NumaChip remote PCI support (Daniel Blueman)
   - Fix PCIe Link Capabilities Supported Link Speed definition (Jingoo
     Han)
   - Convert dev_printk() to dev_info(), etc (Joe Perches)
   - Add support for non PCI BAR ROM data (Matthew Garrett)
   - Add x86 support for host bridge translation offset (Mike Yoknis)
   - Report success only when every driver supports AER (Vijay
     Pandarathil)"

Fix up trivial conflicts.

* tag 'for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (48 commits)
  PCI: Use phys_addr_t for physical ROM address
  x86/PCI: Add NumaChip remote PCI support
  ath9k: Use standard #defines for PCIe Capability ASPM fields
  iwlwifi: Use standard #defines for PCIe Capability ASPM fields
  iwlwifi: collapse wrapper for pcie_capability_read_word()
  iwlegacy: Use standard #defines for PCIe Capability ASPM fields
  iwlegacy: collapse wrapper for pcie_capability_read_word()
  cxgb3: Use standard #defines for PCIe Capability ASPM fields
  PCI: Add standard PCIe Capability Link ASPM field names
  PCI/portdrv: Use PCI Express Capability accessors
  PCI: Use standard PCIe Capability Link register field names
  x86: Use PCI setup data
  PCI: Add support for non-BAR ROMs
  PCI: Add pcibios_add_device
  EFI: Stash ROMs if they're not in the PCI BAR
  PCI: Add and use standard PCI-X Capability register names
  PCI/PM: Keep runtime PM enabled for unbound PCI devices
  xen-pcifront: Handle backend CLOSED without CLOSING
  PCI: SRIOV control and status via sysfs (documentation)
  PCI/AER: Report success only when every device has AER-aware driver
  ...

1 files changed, 34 insertions, 8 deletions

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 3683f6094e3..6186f03d84f 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -521,7 +521,7 @@ static unsigned char pcie_link_speed[] = {
 
 void pcie_update_link_speed(struct pci_bus *bus, u16 linksta)
 {
-	bus->cur_bus_speed = pcie_link_speed[linksta & 0xf];
+	bus->cur_bus_speed = pcie_link_speed[linksta & PCI_EXP_LNKSTA_CLS];
 }
 EXPORT_SYMBOL_GPL(pcie_update_link_speed);
 
@@ -579,14 +579,16 @@ static void pci_set_bus_speed(struct pci_bus *bus)
 	if (pos) {
 		u16 status;
 		enum pci_bus_speed max;
-		pci_read_config_word(bridge, pos + 2, &status);
 
-		if (status & 0x8000) {
+		pci_read_config_word(bridge, pos + PCI_X_BRIDGE_SSTATUS,
+				     &status);
+
+		if (status & PCI_X_SSTATUS_533MHZ) {
 			max = PCI_SPEED_133MHz_PCIX_533;
-		} else if (status & 0x4000) {
+		} else if (status & PCI_X_SSTATUS_266MHZ) {
 			max = PCI_SPEED_133MHz_PCIX_266;
-		} else if (status & 0x0002) {
-			if (((status >> 12) & 0x3) == 2) {
+		} else if (status & PCI_X_SSTATUS_133MHZ) {
+			if ((status & PCI_X_SSTATUS_VERS) == PCI_X_SSTATUS_V2) {
 				max = PCI_SPEED_133MHz_PCIX_ECC;
 			} else {
 				max = PCI_SPEED_133MHz_PCIX;
@@ -596,7 +598,8 @@ static void pci_set_bus_speed(struct pci_bus *bus)
 		}
 
 		bus->max_bus_speed = max;
-		bus->cur_bus_speed = pcix_bus_speed[(status >> 6) & 0xf];
+		bus->cur_bus_speed = pcix_bus_speed[
+			(status & PCI_X_SSTATUS_FREQ) >> 6];
 
 		return;
 	}
@@ -607,7 +610,7 @@ static void pci_set_bus_speed(struct pci_bus *bus)
 		u16 linksta;
 
 		pcie_capability_read_dword(bridge, PCI_EXP_LNKCAP, &linkcap);
-		bus->max_bus_speed = pcie_link_speed[linkcap & 0xf];
+		bus->max_bus_speed = pcie_link_speed[linkcap & PCI_EXP_LNKCAP_SLS];
 
 		pcie_capability_read_word(bridge, PCI_EXP_LNKSTA, &linksta);
 		pcie_update_link_speed(bus, linksta);
@@ -975,6 +978,7 @@ int pci_setup_device(struct pci_dev *dev)
 	dev->sysdata = dev->bus->sysdata;
 	dev->dev.parent = dev->bus->bridge;
 	dev->dev.bus = &pci_bus_type;
+	dev->dev.type = &pci_dev_type;
 	dev->hdr_type = hdr_type & 0x7f;
 	dev->multifunction = !!(hdr_type & 0x80);
 	dev->error_state = pci_channel_io_normal;
@@ -1889,6 +1893,28 @@ unsigned int __ref pci_rescan_bus_bridge_resize(struct pci_dev *bridge)
 	return max;
 }
 
+/**
+ * pci_rescan_bus - scan a PCI bus for devices.
+ * @bus: PCI bus to scan
+ *
+ * Scan a PCI bus and child buses for new devices, adds them,
+ * and enables them.
+ *
+ * Returns the max number of subordinate bus discovered.
+ */
+unsigned int __ref pci_rescan_bus(struct pci_bus *bus)
+{
+	unsigned int max;
+
+	max = pci_scan_child_bus(bus);
+	pci_assign_unassigned_bus_resources(bus);
+	pci_enable_bridges(bus);
+	pci_bus_add_devices(bus);
+
+	return max;
+}
+EXPORT_SYMBOL_GPL(pci_rescan_bus);
+
 EXPORT_SYMBOL(pci_add_new_bus);
 EXPORT_SYMBOL(pci_scan_slot);
 EXPORT_SYMBOL(pci_scan_bridge);