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gerrit-public.fairphone.software / kernel / msm-4.19 / d522d9cc5bdd41214084383fc3e6d882f6916a78 / . / drivers / pci / Kconfig
blob: 0fa466a91bf413995169f1751823e25784d70891 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1#
2# PCI configuration
3#
Dan Williamsf282b9702007-04-18 18:46:20 +1000[diff] [blame]4config ARCH_SUPPORTS_MSI
5 bool
6 default n
7
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]8config PCI_MSI
9 bool "Message Signaled Interrupts (MSI and MSI-X)"
10 depends on PCI
Dan Williamsf282b9702007-04-18 18:46:20 +1000[diff] [blame]11 depends on ARCH_SUPPORTS_MSI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]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
Matthew Wilcox309e57d2006-03-05 22:33:34 -0700[diff] [blame]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
Jesse Barnes31961802010-04-08 09:38:47 -0700[diff] [blame]22 If you don't know what to do here, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]23
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]24config 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
Chris Wrightc70e0d92008-11-25 21:17:13 -0800[diff] [blame]34config PCI_STUB
35 tristate "PCI Stub driver"
36 depends on PCI
37 help
38 Say Y or M here if you want be able to reserve a PCI device
39 when it is going to be assigned to a guest operating system.
40
41 When in doubt, say N.
42
Ryan Wilson956a9202010-08-02 21:31:05 -0400[diff] [blame]43config XEN_PCIDEV_FRONTEND
44 tristate "Xen PCI Frontend"
45 depends on PCI && X86 && XEN
46 select HOTPLUG
47 select PCI_XEN
Konrad Rzeszutek Wilkfce263c2010-12-10 22:33:15 -0500[diff] [blame]48 select XEN_XENBUS_FRONTEND
Ryan Wilson956a9202010-08-02 21:31:05 -0400[diff] [blame]49 default y
50 help
51 The PCI device frontend driver allows the kernel to import arbitrary
52 PCI devices from a PCI backend to support PCI driver domains.
53
54config XEN_PCIDEV_FE_DEBUG
55 bool "Xen PCI Frontend debugging"
56 depends on XEN_PCIDEV_FRONTEND && PCI_DEBUG
57 help
58 Say Y here if you want the Xen PCI frontend to produce a bunch of debug
59 messages to the system log. Select this if you are having a
60 problem with Xen PCI frontend support and want to see more of what is
61 going on.
62
63 When in doubt, say N.
64
Eric W. Biederman8b955b02006-10-04 02:16:55 -0700[diff] [blame]65config HT_IRQ
66 bool "Interrupts on hypertransport devices"
67 default y
Adrian Bunkfbab41c2006-10-11 01:22:04 -0700[diff] [blame]68 depends on PCI && X86_LOCAL_APIC && X86_IO_APIC
Eric W. Biederman8b955b02006-10-04 02:16:55 -0700[diff] [blame]69 help
70 This allows native hypertransport devices to use interrupts.
71
72 If unsure say Y.
Yu Zhaod1b054d2009-03-20 11:25:11 +0800[diff] [blame]73
74config PCI_IOV
75 bool "PCI IOV support"
76 depends on PCI
77 help
78 I/O Virtualization is a PCI feature supported by some devices
79 which allows them to create virtual devices which share their
80 physical resources.
81
82 If unsure, say N.
Bjorn Helgaas204d49a2009-10-26 11:20:47 -0600[diff] [blame]83
84config PCI_IOAPIC
85 bool
86 depends on PCI
87 depends on ACPI
88 depends on HOTPLUG
89 default y
Narendra_K@Dell.com60589892011-03-02 22:34:17 +0530[diff] [blame]90
Randy Dunlap8a226e02011-03-29 09:45:57 -0700[diff] [blame]91config PCI_LABEL
92 def_bool y if (DMI || ACPI)
93 select NLS