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Merge branch 'pci/aspm'

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- disable ASPM L1.2 substate if we don't have LTR (Bjorn Helgaas)

  - respect platform ownership of LTR (Bjorn Helgaas)

* pci/aspm:
  PCI/ACPI: Request LTR control from platform before using it
  PCI/ASPM: Disable ASPM L1.2 Substate if we don't have LTR
This commit is contained in:
Bjorn Helgaas
2018-06-06 16:10:05 -05:00
parent d7e02c08a9 af8bb9f898
commit 08b5b2f783
5 changed files with 23 additions and 1 deletions
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include/linux/pci.h
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@@ -473,6 +473,7 @@ struct pci_host_bridge {
unsigned int native_aer:1; /* OS may use PCIe AER */
unsigned int native_hotplug:1; /* OS may use PCIe hotplug */
unsigned int native_pme:1; /* OS may use PCIe PME */
unsigned int native_ltr:1; /* OS may use PCIe LTR */
/* Resource alignment requirements */
resource_size_t (*align_resource)(struct pci_dev *dev,
const struct resource *res,