diff options
Diffstat (limited to 'drivers/pci/pcie/Kconfig')
| -rw-r--r-- | drivers/pci/pcie/Kconfig | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/pci/pcie/Kconfig b/drivers/pci/pcie/Kconfig new file mode 100644 index 00000000..6c8bc580 --- /dev/null +++ b/drivers/pci/pcie/Kconfig @@ -0,0 +1,85 @@ +# +# PCI Express Port Bus Configuration +# +config PCIEPORTBUS + bool "PCI Express support" + depends on PCI + help + This automatically enables PCI Express Port Bus support. Users can + choose Native Hot-Plug support, Advanced Error Reporting support, + Power Management Event support and Virtual Channel support to run + on PCI Express Ports (Root or Switch). + +# +# Include service Kconfig here +# +config HOTPLUG_PCI_PCIE + tristate "PCI Express Hotplug driver" + depends on HOTPLUG_PCI && PCIEPORTBUS + help + Say Y here if you have a motherboard that supports PCI Express Native + Hotplug + + To compile this driver as a module, choose M here: the + module will be called pciehp. + + When in doubt, say N. + +source "drivers/pci/pcie/aer/Kconfig" + +# +# PCI Express ASPM +# +config PCIEASPM + bool "PCI Express ASPM control" if EXPERT + depends on PCI && PCIEPORTBUS + default y + help + This enables OS control over PCI Express ASPM (Active State + Power Management) and Clock Power Management. ASPM supports + state L0/L0s/L1. + + ASPM is initially set up by the firmware. With this option enabled, + Linux can modify this state in order to disable ASPM on known-bad + hardware or configurations and enable it when known-safe. + + ASPM can be disabled or enabled at runtime via + /sys/module/pcie_aspm/parameters/policy + + When in doubt, say Y. +config PCIEASPM_DEBUG + bool "Debug PCI Express ASPM" + depends on PCIEASPM + default n + help + This enables PCI Express ASPM debug support. It will add per-device + interface to control ASPM. + +choice + prompt "Default ASPM policy" + default PCIEASPM_DEFAULT + depends on PCIEASPM + +config PCIEASPM_DEFAULT + bool "BIOS default" + depends on PCIEASPM + help + Use the BIOS defaults for PCI Express ASPM. + +config PCIEASPM_POWERSAVE + bool "Powersave" + depends on PCIEASPM + help + Enable PCI Express ASPM L0s and L1 where possible, even if the + BIOS did not. + +config PCIEASPM_PERFORMANCE + bool "Performance" + depends on PCIEASPM + help + Disable PCI Express ASPM L0s and L1, even if the BIOS enabled them. +endchoice + +config PCIE_PME + def_bool y + depends on PCIEPORTBUS && PM_RUNTIME && EXPERIMENTAL && ACPI |