1# 2# PCI configuration 3# 4config PCI_MSI 5 bool "Message Signaled Interrupts (MSI and MSI-X)" 6 depends on PCI 7 depends on (X86_LOCAL_APIC && X86_IO_APIC) || IA64 8 help 9 This allows device drivers to enable MSI (Message Signaled 10 Interrupts). Message Signaled Interrupts enable a device to 11 generate an interrupt using an inbound Memory Write on its 12 PCI bus instead of asserting a device IRQ pin. 13 14 If you don't know what to do here, say N. 15 16config PCI_LEGACY_PROC 17 bool "Legacy /proc/pci interface" 18 depends on PCI 19 ---help--- 20 This feature enables a procfs file -- /proc/pci -- that provides a 21 summary of PCI devices in the system. 22 23 This feature has been deprecated as of v2.5.53, in favor of using the 24 tool lspci(8). This feature may be removed at a future date. 25 26 lspci can provide the same data, as well as much more. lspci is a part of 27 the pci-utils package, which should be installed by your distribution. 28 See <file:Documentation/Changes> for information on where to get the latest 29 version. 30 31 When in doubt, say N. 32 33config PCI_NAMES 34 bool "PCI device name database" 35 depends on PCI 36 ---help--- 37 By default, the kernel contains a database of all known PCI device 38 names to make the information in /proc/pci, /proc/ioports and 39 similar files comprehensible to the user. 40 41 This database increases size of the kernel image by about 80KB. This 42 memory is freed after the system boots up if CONFIG_HOTPLUG is not set. 43 44 Anyway, if you are building an installation floppy or kernel for an 45 embedded system where kernel image size really matters, you can disable 46 this feature and you'll get device ID numbers instead of names. 47 48 When in doubt, say Y. 49 50config PCI_DEBUG 51 bool "PCI Debugging" 52 depends on PCI && DEBUG_KERNEL 53 help 54 Say Y here if you want the PCI core to produce a bunch of debug 55 messages to the system log. Select this if you are having a 56 problem with PCI support and want to see more of what is going on. 57 58 When in doubt, say N. 59 60