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- #
- # PCI configuration
- #
- config PCI_MSI
- bool "Message Signaled Interrupts (MSI and MSI-X)"
- depends on PCI
- depends on (X86_LOCAL_APIC && X86_IO_APIC) || IA64
- 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_MULTITHREAD_PROBE
- bool "PCI Multi-threaded probe (EXPERIMENTAL)"
- depends on PCI && EXPERIMENTAL
- help
- Say Y here if you want the PCI core to spawn a new thread for
- every PCI device that is probed. This can cause a huge
- speedup in boot times on multiprocessor machines, and even a
- smaller speedup on single processor machines.
- But it can also cause lots of bad things to happen. A number
- of PCI drivers can not properly handle running in this way,
- some will just not work properly at all, while others might
- decide to blow up power supplies with a huge load all at once,
- so use this option at your own risk.
- It is very unwise to use this option if you are not using a
- boot process that can handle devices being created in any
- order. A program that can create persistant block and network
- device names (like udev) is a good idea if you wish to use
- this option.
- Again, use this option at your own risk, you have been warned!
- When in doubt, say N.
- 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 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.
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