projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | # |
| 2 | # PCI Express Port Bus Configuration | |
| 3 | # | |
| 4 | config PCIEPORTBUS | |
| d47af0bc | 5 | bool "PCI Express Port Bus support" |
| 1da177e4 LT |
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 | |
| c10cc483 | 17 | bool "PCI Express Hotplug driver" |
| 1da177e4 LT |
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 | ||
| 1da177e4 LT |
23 | When in doubt, say N. |
| 24 | ||
| 6c2b374d | 25 | source "drivers/pci/pcie/aer/Kconfig" |
| 7d715a6c SL |
26 | |
| 27 | # | |
| 28 | # PCI Express ASPM | |
| 29 | # | |
| 30 | config PCIEASPM | |
| 6a108a14 | 31 | bool "PCI Express ASPM control" if EXPERT |
| ea5f9fc5 MG |
32 | depends on PCI && PCIEPORTBUS |
| 33 | default y | |
| 7d715a6c | 34 | help |
| ea5f9fc5 MG |
35 | This enables OS control over PCI Express ASPM (Active State |
| 36 | Power Management) and Clock Power Management. ASPM supports | |
| 37 | state L0/L0s/L1. | |
| 7d715a6c | 38 | |
| d56641c7 | 39 | ASPM is initially set up by the firmware. With this option enabled, |
| ea5f9fc5 MG |
40 | Linux can modify this state in order to disable ASPM on known-bad |
| 41 | hardware or configurations and enable it when known-safe. | |
| 42 | ||
| 43 | ASPM can be disabled or enabled at runtime via | |
| 44 | /sys/module/pcie_aspm/parameters/policy | |
| 45 | ||
| 46 | When in doubt, say Y. | |
| cc73176c | 47 | |
| 7d715a6c SL |
48 | config PCIEASPM_DEBUG |
| 49 | bool "Debug PCI Express ASPM" | |
| 50 | depends on PCIEASPM | |
| 51 | default n | |
| 52 | help | |
| 53 | This enables PCI Express ASPM debug support. It will add per-device | |
| 54 | interface to control ASPM. | |
| c7f48656 | 55 | |
| ad71c962 MG |
56 | choice |
| 57 | prompt "Default ASPM policy" | |
| 58 | default PCIEASPM_DEFAULT | |
| 59 | depends on PCIEASPM | |
| 60 | ||
| 61 | config PCIEASPM_DEFAULT | |
| cc73176c | 62 | bool "BIOS default" |
| ad71c962 MG |
63 | depends on PCIEASPM |
| 64 | help | |
| 65 | Use the BIOS defaults for PCI Express ASPM. | |
| 66 | ||
| 67 | config PCIEASPM_POWERSAVE | |
| cc73176c | 68 | bool "Powersave" |
| ad71c962 MG |
69 | depends on PCIEASPM |
| 70 | help | |
| 71 | Enable PCI Express ASPM L0s and L1 where possible, even if the | |
| 72 | BIOS did not. | |
| 73 | ||
| 74 | config PCIEASPM_PERFORMANCE | |
| cc73176c | 75 | bool "Performance" |
| ad71c962 MG |
76 | depends on PCIEASPM |
| 77 | help | |
| 78 | Disable PCI Express ASPM L0s and L1, even if the BIOS enabled them. | |
| 79 | endchoice | |
| 80 | ||
| c7f48656 RW |
81 | config PCIE_PME |
| 82 | def_bool y | |
| fbb988be | 83 | depends on PCIEPORTBUS && PM |