mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 13:43:55 +08:00
72a73a69f6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (28 commits)
PCI: make arch/i386/pci/common.c:pci_bf_sort static
PCI: ibmphp_pci.c: fix NULL dereference
pciehp: remove unnecessary pci_disable_msi
pciehp: remove unnecessary free_irq
PCI: rpaphp: change device tree examination
PCI: Change memory allocation for acpiphp slots
i2c-i801: SMBus patch for Intel ICH9
PCI: irq: irq and pci_ids patch for Intel ICH9
PCI: pci_{enable,disable}_device() nestable ports
PCI: switch pci_{enable,disable}_device() to be nestable
PCI: arch/i386/kernel/pci-dma.c: ioremap balanced with iounmap
pci/i386: style cleanups
PCI: Block on access to temporarily unavailable pci device
pci: fix __pci_register_driver error handling
pci: clear osc support flags if no _OSC method
acpiphp: fix missing acpiphp_glue_exit()
acpiphp: fix use of list_for_each macro
Altix: Initial ACPI support - ROM shadowing.
Altix: SN ACPI hotplug support.
Altix: Add initial ACPI IO support
...
63 lines
2.1 KiB
Plaintext
63 lines
2.1 KiB
Plaintext
#
|
|
# PCI configuration
|
|
#
|
|
config PCI_MSI
|
|
bool "Message Signaled Interrupts (MSI and MSI-X)"
|
|
depends on PCI
|
|
depends on (X86_LOCAL_APIC && X86_IO_APIC) || IA64
|
|
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.
|
|
|
|
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.
|
|
|
|
If you don't know what to do here, say N.
|
|
|
|
config PCI_MULTITHREAD_PROBE
|
|
bool "PCI Multi-threaded probe (EXPERIMENTAL)"
|
|
depends on PCI && EXPERIMENTAL
|
|
help
|
|
Say Y here if you want the PCI core to spawn a new thread for
|
|
every PCI device that is probed. This can cause a huge
|
|
speedup in boot times on multiprocessor machines, and even a
|
|
smaller speedup on single processor machines.
|
|
|
|
But it can also cause lots of bad things to happen. A number
|
|
of PCI drivers cannot properly handle running in this way,
|
|
some will just not work properly at all, while others might
|
|
decide to blow up power supplies with a huge load all at once,
|
|
so use this option at your own risk.
|
|
|
|
It is very unwise to use this option if you are not using a
|
|
boot process that can handle devices being created in any
|
|
order. A program that can create persistent block and network
|
|
device names (like udev) is a good idea if you wish to use
|
|
this option.
|
|
|
|
Again, use this option at your own risk, you have been warned!
|
|
|
|
When in doubt, say N.
|
|
|
|
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.
|
|
|
|
config HT_IRQ
|
|
bool "Interrupts on hypertransport devices"
|
|
default y
|
|
depends on PCI && X86_LOCAL_APIC && X86_IO_APIC
|
|
help
|
|
This allows native hypertransport devices to use interrupts.
|
|
|
|
If unsure say Y.
|