# # PCI configuration # config ARCH_SUPPORTS_MSI bool default n config PCI_MSI bool "Message Signaled Interrupts (MSI and MSI-X)" depends on PCI depends on ARCH_SUPPORTS_MSI help This allows device drivers to enable MSI (Message Signaled Interrupts). Message Signaled Interrupts enable a device to generate an interrupt using an inbound Memory Write on its PCI bus instead of asserting a device IRQ pin. Use of PCI MSI interrupts can be disabled at kernel boot time by using the 'pci=nomsi' option. This disables MSI for the entire system. If you don't know what to do here, say N. config PCI_LEGACY bool "Enable deprecated pci_find_* API" depends on PCI default y help Say Y here if you want to include support for the deprecated pci_find_slot() and pci_find_device() APIs. Most drivers have been converted over to using the proper hotplug APIs, so this option serves to include/exclude only a few drivers that are still using this API. config PCI_INIT_IN_MONITOR bool "PCI Initialized in bootrom" depends on PCI help This flag indicates that the PCI bus was initialized in the bootrom monitor, and that further hardware initialization should not be performed. Examples are when u-boot's PCI functions are used to pre-initialize hardware at bootup time. Note that bus scan should still be performed to configure the PCI devices as required for the Linux system. config PCI_DEBUG bool "PCI Debugging" depends on PCI && DEBUG_KERNEL help Say Y here if you want the PCI core to produce a bunch of debug messages to the system log. Select this if you are having a problem with PCI support and want to see more of what is going on. When in doubt, say N. config PCI_STUB tristate "PCI Stub driver" depends on PCI help Say Y or M here if you want be able to reserve a PCI device when it is going to be assigned to a guest operating system. When in doubt, say N. config PCI_DISABLE_COMMON_QUIRKS bool "PCI disable common quirks" depends on PCI help If you don't know what to do here, say N. config HT_IRQ bool "Interrupts on hypertransport devices" default y depends on PCI && X86_LOCAL_APIC && X86_IO_APIC help This allows native hypertransport devices to use interrupts. If unsure say Y. config PCI_IOV bool "PCI IOV support" depends on PCI help I/O Virtualization is a PCI feature supported by some devices which allows them to create virtual devices which share their physical resources. If unsure, say N. if LANTIQ #IFX plaform specific source "drivers/pci/Kconfig.ifx" endif