11da177e4SLinus Torvalds# 21da177e4SLinus Torvalds# PCI Express Port Bus Configuration 31da177e4SLinus Torvalds# 41da177e4SLinus Torvaldsconfig PCIEPORTBUS 51da177e4SLinus Torvalds bool "PCI Express support" 61da177e4SLinus Torvalds depends on PCI 71da177e4SLinus Torvalds help 81da177e4SLinus Torvalds This automatically enables PCI Express Port Bus support. Users can 91da177e4SLinus Torvalds choose Native Hot-Plug support, Advanced Error Reporting support, 101da177e4SLinus Torvalds Power Management Event support and Virtual Channel support to run 111da177e4SLinus Torvalds on PCI Express Ports (Root or Switch). 121da177e4SLinus Torvalds 131da177e4SLinus Torvalds# 141da177e4SLinus Torvalds# Include service Kconfig here 151da177e4SLinus Torvalds# 161da177e4SLinus Torvaldsconfig HOTPLUG_PCI_PCIE 17*c10cc483SBjorn Helgaas bool "PCI Express Hotplug driver" 181da177e4SLinus Torvalds depends on HOTPLUG_PCI && PCIEPORTBUS 191da177e4SLinus Torvalds help 201da177e4SLinus Torvalds Say Y here if you have a motherboard that supports PCI Express Native 211da177e4SLinus Torvalds Hotplug 221da177e4SLinus Torvalds 231da177e4SLinus Torvalds When in doubt, say N. 241da177e4SLinus Torvalds 256c2b374dSZhang, Yanminsource "drivers/pci/pcie/aer/Kconfig" 267d715a6cSShaohua Li 277d715a6cSShaohua Li# 287d715a6cSShaohua Li# PCI Express ASPM 297d715a6cSShaohua Li# 307d715a6cSShaohua Liconfig PCIEASPM 316a108a14SDavid Rientjes bool "PCI Express ASPM control" if EXPERT 32ea5f9fc5SMatthew Garrett depends on PCI && PCIEPORTBUS 33ea5f9fc5SMatthew Garrett default y 347d715a6cSShaohua Li help 35ea5f9fc5SMatthew Garrett This enables OS control over PCI Express ASPM (Active State 36ea5f9fc5SMatthew Garrett Power Management) and Clock Power Management. ASPM supports 37ea5f9fc5SMatthew Garrett state L0/L0s/L1. 387d715a6cSShaohua Li 39d56641c7SP. Christeas ASPM is initially set up by the firmware. With this option enabled, 40ea5f9fc5SMatthew Garrett Linux can modify this state in order to disable ASPM on known-bad 41ea5f9fc5SMatthew Garrett hardware or configurations and enable it when known-safe. 42ea5f9fc5SMatthew Garrett 43ea5f9fc5SMatthew Garrett ASPM can be disabled or enabled at runtime via 44ea5f9fc5SMatthew Garrett /sys/module/pcie_aspm/parameters/policy 45ea5f9fc5SMatthew Garrett 46ea5f9fc5SMatthew Garrett When in doubt, say Y. 477d715a6cSShaohua Liconfig PCIEASPM_DEBUG 487d715a6cSShaohua Li bool "Debug PCI Express ASPM" 497d715a6cSShaohua Li depends on PCIEASPM 507d715a6cSShaohua Li default n 517d715a6cSShaohua Li help 527d715a6cSShaohua Li This enables PCI Express ASPM debug support. It will add per-device 537d715a6cSShaohua Li interface to control ASPM. 54c7f48656SRafael J. Wysocki 55ad71c962SMatthew Garrettchoice 56ad71c962SMatthew Garrett prompt "Default ASPM policy" 57ad71c962SMatthew Garrett default PCIEASPM_DEFAULT 58ad71c962SMatthew Garrett depends on PCIEASPM 59ad71c962SMatthew Garrett 60ad71c962SMatthew Garrettconfig PCIEASPM_DEFAULT 61ad71c962SMatthew Garrett bool "BIOS default" 62ad71c962SMatthew Garrett depends on PCIEASPM 63ad71c962SMatthew Garrett help 64ad71c962SMatthew Garrett Use the BIOS defaults for PCI Express ASPM. 65ad71c962SMatthew Garrett 66ad71c962SMatthew Garrettconfig PCIEASPM_POWERSAVE 67ad71c962SMatthew Garrett bool "Powersave" 68ad71c962SMatthew Garrett depends on PCIEASPM 69ad71c962SMatthew Garrett help 70ad71c962SMatthew Garrett Enable PCI Express ASPM L0s and L1 where possible, even if the 71ad71c962SMatthew Garrett BIOS did not. 72ad71c962SMatthew Garrett 73ad71c962SMatthew Garrettconfig PCIEASPM_PERFORMANCE 74ad71c962SMatthew Garrett bool "Performance" 75ad71c962SMatthew Garrett depends on PCIEASPM 76ad71c962SMatthew Garrett help 77ad71c962SMatthew Garrett Disable PCI Express ASPM L0s and L1, even if the BIOS enabled them. 78ad71c962SMatthew Garrettendchoice 79ad71c962SMatthew Garrett 80c7f48656SRafael J. Wysockiconfig PCIE_PME 81c7f48656SRafael J. Wysocki def_bool y 8205795726SBjorn Helgaas depends on PCIEPORTBUS && PM_RUNTIME 83