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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-06 11:44:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-06 11:44:36 -0700
commit1cfd2bda8c486ae0e7a8005354758ebb68172bca (patch)
tree76ce15f377d8d6eb3ae4aa8b8b0b415457e38d36 /drivers/acpi
parentb57bdda58cda0aaf6def042d101dd85977a286ed (diff)
parent763e9db9994e27a7d2cb3701c8a097a867d0e0b4 (diff)
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 ...
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/pci_root.c9
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);