| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | # |
| 2 | # PCI configuration |
| 3 | # |
| 4 | config 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 | |
| Matthew Wilcox | 309e57d | 2006-03-05 22:33:34 -0700 | [diff] [blame] | 14 | Use of PCI MSI interrupts can be disabled at kernel boot time |
| 15 | by using the 'pci=nomsi' option. This disables MSI for the |
| 16 | entire system. |
| 17 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | If you don't know what to do here, say N. |
| 19 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | config PCI_DEBUG |
| 21 | bool "PCI Debugging" |
| 22 | depends on PCI && DEBUG_KERNEL |
| 23 | help |
| 24 | Say Y here if you want the PCI core to produce a bunch of debug |
| 25 | messages to the system log. Select this if you are having a |
| 26 | problem with PCI support and want to see more of what is going on. |
| 27 | |
| 28 | When in doubt, say N. |
| 29 | |