PCI: document the pcie_aspm kernel parameter

It can be handy so make sure people know about it.

Signed-off-by: Chuck Ebbert <[email protected]>
Signed-off-by: Jesse Barnes <[email protected]>

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 08fbc8372ba45e4fe42d839358053f670f22a4eb..53ba7c7d82b342d50053f6458225b29123bee747 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1678,6 +1678,12 @@ and is between 256 and 4096 characters. It is defined in the file
                                reserved for the CardBus bridge's memory
                                window. The default value is 64 megabytes.
 
+       pcie_aspm=      [PCIE] Forcibly enable or disable PCIe Active State Power
+                       Management.
+               off     Disable ASPM.
+               force   Enable ASPM even on devices that claim not to support it.
+                       WARNING: Forcing ASPM on may cause system lockups.
+
        pcmv=           [HW,PCMCIA] BadgePAD 4
 
        pd.             [PARIDE]