Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6

* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (30 commits)
  PCI: update for owner removal from struct device_attribute
  PCI: Fix warnings when CONFIG_DMI unset
  PCI: Do not run NVidia quirks related to MSI with MSI disabled
  x86/PCI: use for_each_pci_dev()
  PCI: use for_each_pci_dev()
  PCI: MSI: Restore read_msi_msg_desc(); add get_cached_msi_msg_desc()
  PCI: export SMBIOS provided firmware instance and label to sysfs
  PCI: Allow read/write access to sysfs I/O port resources
  x86/PCI: use host bridge _CRS info on ASRock ALiveSATA2-GLAN
  PCI: remove unused HAVE_ARCH_PCI_SET_DMA_MAX_SEGMENT_{SIZE|BOUNDARY}
  PCI: disable mmio during bar sizing
  PCI: MSI: Remove unsafe and unnecessary hardware access
  PCI: Default PCIe ASPM control to on and require !EMBEDDED to disable
  PCI: kernel oops on access to pci proc file while hot-removal
  PCI: pci-sysfs: remove casts from void*
  ACPI: Disable ASPM if the platform won't provide _OSC control for PCIe
  PCI hotplug: make sure child bridges are enabled at hotplug time
  PCI hotplug: shpchp: Removed check for hotplug of display devices
  PCI hotplug: pciehp: Fixed return value sign for pciehp_unconfigure_device
  PCI: Don't enable aspm before drivers have had a chance to veto it
  ...

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 4eac59393edc..1f67057af2a5 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -33,6 +33,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/pci.h>
 #include <linux/pci-acpi.h>
+#include <linux/pci-aspm.h>
 #include <linux/acpi.h>
 #include <linux/slab.h>
 #include <acpi/acpi_bus.h>
@@ -543,6 +544,14 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
         if (flags != base_flags)
                 acpi_pci_osc_support(root, flags);
 
+        status = acpi_pci_osc_control_set(root->device->handle,
+                                          OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
+
+        if (ACPI_FAILURE(status)) {
+                printk(KERN_INFO "Unable to assume PCIe control: Disabling ASPM\n");
+                pcie_no_aspm();
+        }
+
         pci_acpi_add_bus_pm_notifier(device, root->bus);
         if (device->wakeup.flags.run_wake)
                 device_set_run_wake(root->bus->bridge, true);