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gerrit-public.fairphone.software / kernel / msm-4.9 / 6d3a2dca549bd0359acae3f6b9fd8199c4e092f5 / . / drivers / pci / Kconfig
blob: 6555eb78d91cef458e6d58c05d0e5e7d0056aaff [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
Joao Pintof8430ea2016-08-09 16:49:37 +0100[diff] [blame]28 def_bool ARC || ARM || ARM64 || X86
Jiang Liu3878eae2014-11-11 21:02:18 +0800[diff] [blame]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
Jayachandran C35ff9472016-05-10 17:19:51 +0200[diff] [blame]86config PCI_ECAM
87 bool
88
Yu Zhaod1b054d2009-03-20 11:25:11 +0800[diff] [blame]89config PCI_IOV
90 bool "PCI IOV support"
91 depends on PCI
Joerg Roedeldb3c33c2011-09-27 15:57:13 +0200[diff] [blame]92 select PCI_ATS
Yu Zhaod1b054d2009-03-20 11:25:11 +0800[diff] [blame]93 help
94 I/O Virtualization is a PCI feature supported by some devices
95 which allows them to create virtual devices which share their
96 physical resources.
97
98 If unsure, say N.
Bjorn Helgaas204d49a2009-10-26 11:20:47 -0600[diff] [blame]99
Joerg Roedelc320b972011-09-27 15:57:15 +0200[diff] [blame]100config PCI_PRI
101 bool "PCI PRI support"
Joerg Roedelc54420d2011-10-30 16:35:07 +0100[diff] [blame]102 depends on PCI
Joerg Roedelc320b972011-09-27 15:57:15 +0200[diff] [blame]103 select PCI_ATS
104 help
105 PRI is the PCI Page Request Interface. It allows PCI devices that are
106 behind an IOMMU to recover from page faults.
107
108 If unsure, say N.
109
Joerg Roedel086ac112011-09-27 15:57:16 +0200[diff] [blame]110config PCI_PASID
111 bool "PCI PASID support"
112 depends on PCI
113 select PCI_ATS
114 help
115 Process Address Space Identifiers (PASIDs) can be used by PCI devices
116 to access more than one IO address space at the same time. To make
117 use of this feature an IOMMU is required which also supports PASIDs.
118 Select this option if you have such an IOMMU and want to compile the
119 driver for it into your kernel.
120
121 If unsure, say N.
122
Randy Dunlap8a226e02011-03-29 09:45:57 -0700[diff] [blame]123config PCI_LABEL
124 def_bool y if (DMI || ACPI)
125 select NLS
Thomas Petazzoni45361a42013-05-16 17:55:22 +0200[diff] [blame]126
Jake Oshins4daace02016-02-16 21:56:23 +0000[diff] [blame]127config PCI_HYPERV
128 tristate "Hyper-V PCI Frontend"
129 depends on PCI && X86 && HYPERV && PCI_MSI && PCI_MSI_IRQ_DOMAIN && X86_64
130 help
131 The PCI device frontend driver allows the kernel to import arbitrary
132 PCI devices from a PCI backend to support PCI driver domains.
133
Tero Roponen30b5b882016-03-21 09:26:41 +0200[diff] [blame]134source "drivers/pci/hotplug/Kconfig"
Thomas Petazzoni45361a42013-05-16 17:55:22 +0200[diff] [blame]135source "drivers/pci/host/Kconfig"