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gerrit-public.fairphone.software / kernel / msm-4.9 / dd4e91d538b3d16d5241575a3fb654a9aa50392c / . / drivers / pci / Kconfig
blob: 209292e067d248c7cdd140b1eb788c7551317e1d [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1#
2# PCI configuration
3#
Bogicevic Sasa5f8fc432016-02-03 13:24:22 -0800[diff] [blame]4
5source "drivers/pci/pcie/Kconfig"
6
Yinghai Lu3a9ad0b2015-05-27 17:23:51 -0700[diff] [blame]7config PCI_BUS_ADDR_T_64BIT
Helge Dellere02a6532015-09-02 18:17:29 +0200[diff] [blame]8 def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
Yinghai Lu3a9ad0b2015-05-27 17:23:51 -0700[diff] [blame]9 depends on PCI
10
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]11config PCI_MSI
12 bool "Message Signaled Interrupts (MSI and MSI-X)"
13 depends on PCI
Jiang Liu38b6a1c2014-11-12 12:11:25 +0100[diff] [blame]14 select GENERIC_MSI_IRQ
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]15 help
16 This allows device drivers to enable MSI (Message Signaled
17 Interrupts). Message Signaled Interrupts enable a device to
18 generate an interrupt using an inbound Memory Write on its
19 PCI bus instead of asserting a device IRQ pin.
20
Matthew Wilcox309e57d2006-03-05 22:33:34 -0700[diff] [blame]21 Use of PCI MSI interrupts can be disabled at kernel boot time
22 by using the 'pci=nomsi' option. This disables MSI for the
23 entire system.
24
Jesse Barnes31961802010-04-08 09:38:47 -0700[diff] [blame]25 If you don't know what to do here, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]26
Jiang Liu3878eae2014-11-11 21:02:18 +0800[diff] [blame]27config PCI_MSI_IRQ_DOMAIN
28 bool
29 depends on PCI_MSI
30 select GENERIC_MSI_IRQ_DOMAIN
31
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]32config PCI_DEBUG
33 bool "PCI Debugging"
34 depends on PCI && DEBUG_KERNEL
35 help
36 Say Y here if you want the PCI core to produce a bunch of debug
37 messages to the system log. Select this if you are having a
38 problem with PCI support and want to see more of what is going on.
39
40 When in doubt, say N.
41
Yinghai Lub07f2eb2012-02-23 19:23:32 -0800[diff] [blame]42config PCI_REALLOC_ENABLE_AUTO
43 bool "Enable PCI resource re-allocation detection"
44 depends on PCI
45 help
46 Say Y here if you want the PCI core to detect if PCI resource
47 re-allocation needs to be enabled. You can always use pci=realloc=on
48 or pci=realloc=off to override it. Note this feature is a no-op
49 unless PCI_IOV support is also enabled; in that case it will
50 automatically re-allocate PCI resources if SR-IOV BARs have not
51 been allocated by the BIOS.
52
53 When in doubt, say N.
54
Chris Wrightc70e0d92008-11-25 21:17:13 -0800[diff] [blame]55config PCI_STUB
56 tristate "PCI Stub driver"
57 depends on PCI
58 help
59 Say Y or M here if you want be able to reserve a PCI device
60 when it is going to be assigned to a guest operating system.
61
62 When in doubt, say N.
63
Ryan Wilson956a9202010-08-02 21:31:05 -0400[diff] [blame]64config XEN_PCIDEV_FRONTEND
65 tristate "Xen PCI Frontend"
66 depends on PCI && X86 && XEN
Ryan Wilson956a9202010-08-02 21:31:05 -0400[diff] [blame]67 select PCI_XEN
Konrad Rzeszutek Wilkfce263c12010-12-10 22:33:15 -0500[diff] [blame]68 select XEN_XENBUS_FRONTEND
Ryan Wilson956a9202010-08-02 21:31:05 -0400[diff] [blame]69 default y
70 help
71 The PCI device frontend driver allows the kernel to import arbitrary
72 PCI devices from a PCI backend to support PCI driver domains.
73
Eric W. Biederman8b955b02006-10-04 02:16:55 -0700[diff] [blame]74config HT_IRQ
75 bool "Interrupts on hypertransport devices"
76 default y
Jiang Liu2f600022014-10-27 16:12:06 +0800[diff] [blame]77 depends on PCI && X86_LOCAL_APIC
Eric W. Biederman8b955b02006-10-04 02:16:55 -0700[diff] [blame]78 help
79 This allows native hypertransport devices to use interrupts.
80
81 If unsure say Y.
Yu Zhaod1b054d2009-03-20 11:25:11 +0800[diff] [blame]82
Joerg Roedeldb3c33c2011-09-27 15:57:13 +0200[diff] [blame]83config PCI_ATS
84 bool
85
Yu Zhaod1b054d2009-03-20 11:25:11 +0800[diff] [blame]86config PCI_IOV
87 bool "PCI IOV support"
88 depends on PCI
Joerg Roedeldb3c33c2011-09-27 15:57:13 +0200[diff] [blame]89 select PCI_ATS
Yu Zhaod1b054d2009-03-20 11:25:11 +0800[diff] [blame]90 help
91 I/O Virtualization is a PCI feature supported by some devices
92 which allows them to create virtual devices which share their
93 physical resources.
94
95 If unsure, say N.
Bjorn Helgaas204d49a2009-10-26 11:20:47 -0600[diff] [blame]96
Joerg Roedelc320b972011-09-27 15:57:15 +0200[diff] [blame]97config PCI_PRI
98 bool "PCI PRI support"
Joerg Roedelc54420d2011-10-30 16:35:07 +0100[diff] [blame]99 depends on PCI
Joerg Roedelc320b972011-09-27 15:57:15 +0200[diff] [blame]100 select PCI_ATS
101 help
102 PRI is the PCI Page Request Interface. It allows PCI devices that are
103 behind an IOMMU to recover from page faults.
104
105 If unsure, say N.
106
Joerg Roedel086ac112011-09-27 15:57:16 +0200[diff] [blame]107config PCI_PASID
108 bool "PCI PASID support"
109 depends on PCI
110 select PCI_ATS
111 help
112 Process Address Space Identifiers (PASIDs) can be used by PCI devices
113 to access more than one IO address space at the same time. To make
114 use of this feature an IOMMU is required which also supports PASIDs.
115 Select this option if you have such an IOMMU and want to compile the
116 driver for it into your kernel.
117
118 If unsure, say N.
119
Randy Dunlap8a226e02011-03-29 09:45:57 -0700[diff] [blame]120config PCI_LABEL
121 def_bool y if (DMI || ACPI)
122 select NLS
Thomas Petazzoni45361a42013-05-16 17:55:22 +0200[diff] [blame]123
Jake Oshins4daace02016-02-16 21:56:23 +0000[diff] [blame]124config PCI_HYPERV
125 tristate "Hyper-V PCI Frontend"
126 depends on PCI && X86 && HYPERV && PCI_MSI && PCI_MSI_IRQ_DOMAIN && X86_64
127 help
128 The PCI device frontend driver allows the kernel to import arbitrary
129 PCI devices from a PCI backend to support PCI driver domains.
130
Tero Roponen30b5b882016-03-21 09:26:41 +0200[diff] [blame]131source "drivers/pci/hotplug/Kconfig"
Thomas Petazzoni45361a42013-05-16 17:55:22 +0200[diff] [blame]132source "drivers/pci/host/Kconfig"