drivers/pci/pcie/Kconfig

   1 #
   2 # PCI Express Port Bus Configuration
   3 #
   4 config 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 #
  16 config 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
  28 source "drivers/pci/pcie/aer/Kconfig"
  29
  30 #
  31 # PCI Express ASPM
  32 #
  33 config 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 the 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.
  50 config 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
  58 config PCIE_PME
  59         def_bool y
  60         depends on PCIEPORTBUS && PM_RUNTIME && EXPERIMENTAL && ACPI