Merge remote-tracking branch 'kernel-2.6.32/develop' into develop-2.6.36

[firefly-linux-kernel-4.4.55.git] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index f084af0cb8e01f7a67026367508fef1085bc801b..20ed4ccc2a2290c14d0bc8b22c01851e6ce10796 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1745,7 +1745,7 @@ and is between 256 and 4096 characters. It is defined in the file
 
        nousb           [USB] Disable the USB subsystem
 
-       nowatchdog      [KNL] Disable the lockup detector.
+       nowatchdog      [KNL] Disable the lockup detector (NMI watchdog).
 
        nowb            [ARM]
 
@@ -1974,15 +1974,18 @@ and is between 256 and 4096 characters. It is defined in the file
                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_pme=       [PCIE,PM] Native PCIe PME signaling options:
-                       Format: {auto|force}[,nomsi]
-               auto    Use native PCIe PME signaling if the BIOS allows the
-                       kernel to control PCIe config registers of root ports.
-               force   Use native PCIe PME signaling even if the BIOS refuses
-                       to allow the kernel to control the relevant PCIe config
-                       registers.
                nomsi   Do not use MSI for native PCIe PME signaling (this makes
-                       all PCIe root ports use INTx for everything).
+                       all PCIe root ports use INTx for all services).
 
        pcmv=           [HW,PCMCIA] BadgePAD 4