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d47af0bcc1
The previous option title "PCI Express support" is confusing. The name seems to imply this option is required to get PCIe support, which is not true. Fix it to "PCI Express Port Bus support" which is more accurate. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
86 lines
2.1 KiB
Plaintext
86 lines
2.1 KiB
Plaintext
#
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# PCI Express Port Bus Configuration
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#
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config PCIEPORTBUS
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bool "PCI Express Port Bus support"
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depends on PCI
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help
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This automatically enables PCI Express Port Bus support. Users can
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choose Native Hot-Plug support, Advanced Error Reporting support,
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Power Management Event support and Virtual Channel support to run
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on PCI Express Ports (Root or Switch).
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#
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# Include service Kconfig here
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#
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config HOTPLUG_PCI_PCIE
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tristate "PCI Express Hotplug driver"
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depends on HOTPLUG_PCI && PCIEPORTBUS
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help
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Say Y here if you have a motherboard that supports PCI Express Native
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Hotplug
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To compile this driver as a module, choose M here: the
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module will be called pciehp.
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When in doubt, say N.
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source "drivers/pci/pcie/aer/Kconfig"
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#
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# PCI Express ASPM
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#
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config PCIEASPM
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bool "PCI Express ASPM control" if EXPERT
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depends on PCI && PCIEPORTBUS
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default y
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help
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This enables OS control over PCI Express ASPM (Active State
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Power Management) and Clock Power Management. ASPM supports
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state L0/L0s/L1.
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ASPM is initially set up by the firmware. With this option enabled,
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Linux can modify this state in order to disable ASPM on known-bad
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hardware or configurations and enable it when known-safe.
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ASPM can be disabled or enabled at runtime via
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/sys/module/pcie_aspm/parameters/policy
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When in doubt, say Y.
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config PCIEASPM_DEBUG
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bool "Debug PCI Express ASPM"
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depends on PCIEASPM
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default n
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help
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This enables PCI Express ASPM debug support. It will add per-device
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interface to control ASPM.
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choice
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prompt "Default ASPM policy"
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default PCIEASPM_DEFAULT
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depends on PCIEASPM
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config PCIEASPM_DEFAULT
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bool "BIOS default"
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depends on PCIEASPM
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help
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Use the BIOS defaults for PCI Express ASPM.
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config PCIEASPM_POWERSAVE
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bool "Powersave"
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depends on PCIEASPM
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help
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Enable PCI Express ASPM L0s and L1 where possible, even if the
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BIOS did not.
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config PCIEASPM_PERFORMANCE
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bool "Performance"
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depends on PCIEASPM
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help
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Disable PCI Express ASPM L0s and L1, even if the BIOS enabled them.
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endchoice
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config PCIE_PME
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def_bool y
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depends on PCIEPORTBUS && PM_RUNTIME
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