[deliverable/linux.git] / drivers / pci / Kconfig

#
# 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_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.
Commit	Line	Data
1da177e4 LT	1	#
	2	# PCI configuration
	3	#
f282b970 DW	4	config ARCH_SUPPORTS_MSI
	5	bool
	6	default n
	7
1da177e4 LT	8	config PCI_MSI
	9	bool "Message Signaled Interrupts (MSI and MSI-X)"
	10	depends on PCI
f282b970	11	depends on ARCH_SUPPORTS_MSI
1da177e4 LT	12	help
	13	This allows device drivers to enable MSI (Message Signaled
	14	Interrupts). Message Signaled Interrupts enable a device to
	15	generate an interrupt using an inbound Memory Write on its
	16	PCI bus instead of asserting a device IRQ pin.
	17
309e57df MW	18	Use of PCI MSI interrupts can be disabled at kernel boot time
	19	by using the 'pci=nomsi' option. This disables MSI for the
	20	entire system.
	21
1da177e4 LT	22	If you don't know what to do here, say N.
1da177e4 LT	23
1da177e4 LT	24	config PCI_DEBUG
	25	bool "PCI Debugging"
	26	depends on PCI && DEBUG_KERNEL
	27	help
	28	Say Y here if you want the PCI core to produce a bunch of debug
	29	messages to the system log. Select this if you are having a
	30	problem with PCI support and want to see more of what is going on.
	31
	32	When in doubt, say N.
	33
8b955b0d EB	34	config HT_IRQ
	35	bool "Interrupts on hypertransport devices"
	36	default y
fbab41cc	37	depends on PCI && X86_LOCAL_APIC && X86_IO_APIC
8b955b0d EB	38	help
	39	This allows native hypertransport devices to use interrupts.
	40
	41	If unsure say Y.