1# 2# PCI Express Port Bus Configuration 3# 4config PCIEPORTBUS 5 bool "PCI Express support" 6 depends on PCI 7 help 8 This automatically enables PCI Express Port Bus support. Users can 9 choose Native Hot-Plug support, Advanced Error Reporting support, 10 Power Management Event support and Virtual Channel support to run 11 on PCI Express Ports (Root or Switch). 12 13# 14# Include service Kconfig here 15# 16config HOTPLUG_PCI_PCIE 17 tristate "PCI Express Hotplug driver" 18 depends on HOTPLUG_PCI && PCIEPORTBUS 19 help 20 Say Y here if you have a motherboard that supports PCI Express Native 21 Hotplug 22 23 To compile this driver as a module, choose M here: the 24 module will be called pciehp. 25 26 When in doubt, say N. 27 28source "drivers/pci/pcie/aer/Kconfig" 29 30# 31# PCI Express ASPM 32# 33config PCIEASPM 34 bool "PCI Express ASPM control" if EXPERT 35 depends on PCI && PCIEPORTBUS 36 default y 37 help 38 This enables OS control over PCI Express ASPM (Active State 39 Power Management) and Clock Power Management. ASPM supports 40 state L0/L0s/L1. 41 42 ASPM is initially set up by the firmware. With this option enabled, 43 Linux can modify this state in order to disable ASPM on known-bad 44 hardware or configurations and enable it when known-safe. 45 46 ASPM can be disabled or enabled at runtime via 47 /sys/module/pcie_aspm/parameters/policy 48 49 When in doubt, say Y. 50config PCIEASPM_DEBUG 51 bool "Debug PCI Express ASPM" 52 depends on PCIEASPM 53 default n 54 help 55 This enables PCI Express ASPM debug support. It will add per-device 56 interface to control ASPM. 57 58config PCIE_PME 59 def_bool y 60 depends on PCIEPORTBUS && PM_RUNTIME && EXPERIMENTAL && ACPI 61