Kconfig 3.69 KB
Newer Older
Linus Torvalds's avatar
Linus Torvalds committed
1
2
3
#
# PCI configuration
#
4
5
6

source "drivers/pci/pcie/Kconfig"

Yinghai Lu's avatar
Yinghai Lu committed
7
config PCI_BUS_ADDR_T_64BIT
8
	def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
Yinghai Lu's avatar
Yinghai Lu committed
9
10
	depends on PCI

Linus Torvalds's avatar
Linus Torvalds committed
11
12
13
config PCI_MSI
	bool "Message Signaled Interrupts (MSI and MSI-X)"
	depends on PCI
14
	select GENERIC_MSI_IRQ
Linus Torvalds's avatar
Linus Torvalds committed
15
16
17
18
19
20
	help
	   This allows device drivers to enable MSI (Message Signaled
	   Interrupts).  Message Signaled Interrupts enable a device to
	   generate an interrupt using an inbound Memory Write on its
	   PCI bus instead of asserting a device IRQ pin.

21
22
23
24
	   Use of PCI MSI interrupts can be disabled at kernel boot time
	   by using the 'pci=nomsi' option.  This disables MSI for the
	   entire system.

25
	   If you don't know what to do here, say Y.
Linus Torvalds's avatar
Linus Torvalds committed
26

27
config PCI_MSI_IRQ_DOMAIN
28
	def_bool ARM || ARM64 || X86
29
30
31
	depends on PCI_MSI
	select GENERIC_MSI_IRQ_DOMAIN

Linus Torvalds's avatar
Linus Torvalds committed
32
33
34
35
36
37
38
39
40
41
config PCI_DEBUG
	bool "PCI Debugging"
	depends on PCI && DEBUG_KERNEL
	help
	  Say Y here if you want the PCI core to produce a bunch of debug
	  messages to the system log.  Select this if you are having a
	  problem with PCI support and want to see more of what is going on.

	  When in doubt, say N.

42
43
44
45
46
47
48
49
50
51
52
53
54
config PCI_REALLOC_ENABLE_AUTO
	bool "Enable PCI resource re-allocation detection"
	depends on PCI
	help
	  Say Y here if you want the PCI core to detect if PCI resource
	  re-allocation needs to be enabled. You can always use pci=realloc=on
          or pci=realloc=off to override it.  Note this feature is a no-op
          unless PCI_IOV support is also enabled; in that case it will
          automatically re-allocate PCI resources if SR-IOV BARs have not
          been allocated by the BIOS.

	  When in doubt, say N.

55
56
57
58
59
60
61
62
63
config PCI_STUB
	tristate "PCI Stub driver"
	depends on PCI
	help
	  Say Y or M here if you want be able to reserve a PCI device
	  when it is going to be assigned to a guest operating system.

	  When in doubt, say N.

64
65
66
67
config XEN_PCIDEV_FRONTEND
        tristate "Xen PCI Frontend"
        depends on PCI && X86 && XEN
        select PCI_XEN
68
	select XEN_XENBUS_FRONTEND
69
70
71
72
73
        default y
        help
          The PCI device frontend driver allows the kernel to import arbitrary
          PCI devices from a PCI backend to support PCI driver domains.

74
75
76
config HT_IRQ
	bool "Interrupts on hypertransport devices"
	default y
77
	depends on PCI && X86_LOCAL_APIC
78
79
80
81
	help
	   This allows native hypertransport devices to use interrupts.

	   If unsure say Y.
82

83
84
85
config PCI_ATS
	bool

86
87
88
config PCI_ECAM
	bool

89
90
91
config PCI_IOV
	bool "PCI IOV support"
	depends on PCI
92
	select PCI_ATS
93
94
95
96
97
98
	help
	  I/O Virtualization is a PCI feature supported by some devices
	  which allows them to create virtual devices which share their
	  physical resources.

	  If unsure, say N.
99

100
101
config PCI_PRI
	bool "PCI PRI support"
Joerg Roedel's avatar
Joerg Roedel committed
102
	depends on PCI
103
104
105
106
107
108
109
	select PCI_ATS
	help
	  PRI is the PCI Page Request Interface. It allows PCI devices that are
	  behind an IOMMU to recover from page faults.

	  If unsure, say N.

110
111
112
113
114
115
116
117
118
119
120
121
122
config PCI_PASID
	bool "PCI PASID support"
	depends on PCI
	select PCI_ATS
	help
	  Process Address Space Identifiers (PASIDs) can be used by PCI devices
	  to access more than one IO address space at the same time. To make
	  use of this feature an IOMMU is required which also supports PASIDs.
	  Select this option if you have such an IOMMU and want to compile the
	  driver for it into your kernel.

	  If unsure, say N.

123
124
125
config PCI_LABEL
	def_bool y if (DMI || ACPI)
	select NLS
126

127
128
129
130
131
132
133
config PCI_HYPERV
        tristate "Hyper-V PCI Frontend"
        depends on PCI && X86 && HYPERV && PCI_MSI && PCI_MSI_IRQ_DOMAIN && X86_64
        help
          The PCI device frontend driver allows the kernel to import arbitrary
          PCI devices from a PCI backend to support PCI driver domains.

134
source "drivers/pci/hotplug/Kconfig"
135
source "drivers/pci/host/Kconfig"