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1da177e4 LT |
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 | ||
6c2b374d | 28 | source "drivers/pci/pcie/aer/Kconfig" |
7d715a6c SL |
29 | |
30 | # | |
31 | # PCI Express ASPM | |
32 | # | |
33 | config PCIEASPM | |
ea5f9fc5 MG |
34 | bool "PCI Express ASPM control" if EMBEDDED |
35 | depends on PCI && PCIEPORTBUS | |
36 | default y | |
7d715a6c | 37 | help |
ea5f9fc5 MG |
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. | |
7d715a6c | 41 | |
ea5f9fc5 MG |
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. | |
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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. | |
c7f48656 RW |
57 | |
58 | config PCIE_PME | |
59 | def_bool y | |
60 | depends on PCIEPORTBUS && PM_RUNTIME && EXPERIMENTAL && ACPI |