linux-imx

# SPDX-License-Identifier: GPL-2.0

#

# PCI configuration

#

​

# select this to offer the PCI prompt

config HAVE_PCI

    bool

​

# select this to unconditionally force on PCI support

config FORCE_PCI

    bool

    select HAVE_PCI

    select PCI

​

menuconfig PCI

    bool "PCI support"

    depends on HAVE_PCI

    help

      This option enables support for the PCI local bus, including

      support for PCI-X and the foundations for PCI Express support.

      Say 'Y' here unless you know what you are doing.

​

if PCI

​

config PCI_DOMAINS

    bool

    depends on PCI

​

config PCI_DOMAINS_GENERIC

    bool

    select PCI_DOMAINS

​

config PCI_SYSCALL

    bool

​

source "drivers/pci/pcie/Kconfig"

​

config PCI_MSI

    bool "Message Signaled Interrupts (MSI and MSI-X)"

    select GENERIC_MSI_IRQ

    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 Y.

​

config PCI_MSI_IRQ_DOMAIN

    def_bool ARC || ARM || ARM64 || X86

    depends on PCI_MSI

    select GENERIC_MSI_IRQ_DOMAIN

​

config PCI_QUIRKS

    default y

    bool "Enable PCI quirk workarounds" if EXPERT

    help

      This enables workarounds for various PCI chipset bugs/quirks.