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-rw-r--r--Documentation/admin-guide/kernel-parameters.txt15
1 files changed, 7 insertions, 8 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 761749562165..26565794a573 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3130,14 +3130,13 @@
force Enable ASPM even on devices that claim not to support it.
WARNING: Forcing ASPM on may cause system lockups.
- pcie_ports= [PCIE] PCIe ports handling:
- auto Ask the BIOS whether or not to use native PCIe services
- associated with PCIe ports (PME, hot-plug, AER). Use
- them only if that is allowed by the BIOS.
- native Use native PCIe services associated with PCIe ports
- unconditionally.
- compat Treat PCIe ports as PCI-to-PCI bridges, disable the PCIe
- ports driver.
+ pcie_ports= [PCIE] PCIe port services handling:
+ native Use native PCIe services (PME, AER, DPC, PCIe hotplug)
+ even if the platform doesn't give the OS permission to
+ use them. This may cause conflicts if the platform
+ also tries to use these services.
+ compat Disable native PCIe services (PME, AER, DPC, PCIe
+ hotplug).
pcie_port_pm= [PCIE] PCIe port power management handling:
off Disable power management of all PCIe ports