820f59ed96
On Ampere Altra, PCIe hotplug is handled through ACPI. A side interface is also present to request system firmware control of the hotplug Attention Indicators. Add an ACPI PCI Hotplug companion driver to support Attention Indicator control. Link: https://lore.kernel.org/r/20230930002036.6491-2-scott@os.amperecomputing.com Signed-off-by: D Scott Phillips <scott@os.amperecomputing.com> [bhelgaas: mask domain to low 4 bits] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
4.6 KiB
SPDX-License-Identifier: GPL-2.0
PCI Hotplug support
menuconfig HOTPLUG_PCI bool "Support for PCI Hotplug" depends on PCI && SYSFS default y if USB4 help Say Y here if you have a motherboard with a PCI Hotplug controller. This allows you to add and remove PCI cards while the machine is powered up and running.
Thunderbolt/USB4 PCIe tunneling depends on native PCIe hotplug.
When in doubt, say N.
if HOTPLUG_PCI
config HOTPLUG_PCI_COMPAQ tristate "Compaq PCI Hotplug driver" depends on X86 && PCI_BIOS help Say Y here if you have a motherboard with a Compaq PCI Hotplug controller.
To compile this driver as a module, choose M here: the
module will be called cpqphp.
When in doubt, say N.
config HOTPLUG_PCI_COMPAQ_NVRAM bool "Save configuration into NVRAM on Compaq servers" depends on HOTPLUG_PCI_COMPAQ help Say Y here if you have a Compaq server that has a PCI Hotplug controller. This will allow the PCI Hotplug driver to store the PCI system configuration options in NVRAM.
When in doubt, say N.
config HOTPLUG_PCI_IBM tristate "IBM PCI Hotplug driver" depends on X86_IO_APIC && X86 && PCI_BIOS help Say Y here if you have a motherboard with a IBM PCI Hotplug controller.
To compile this driver as a module, choose M here: the
module will be called ibmphp.
When in doubt, say N.
config HOTPLUG_PCI_ACPI bool "ACPI PCI Hotplug driver" depends on HOTPLUG_PCI=y && ((!ACPI_DOCK && ACPI) || (ACPI_DOCK)) help Say Y here if you have a system that supports PCI Hotplug using ACPI.
When in doubt, say N.
config HOTPLUG_PCI_ACPI_AMPERE_ALTRA tristate "ACPI PCI Hotplug driver Ampere Altra extensions" depends on HOTPLUG_PCI_ACPI depends on HAVE_ARM_SMCCC_DISCOVERY help Say Y here if you have an Ampere Altra system.
To compile this driver as a module, choose M here: the
module will be called acpiphp_ampere_altra.
When in doubt, say N.
config HOTPLUG_PCI_ACPI_IBM tristate "ACPI PCI Hotplug driver IBM extensions" depends on HOTPLUG_PCI_ACPI help Say Y here if you have an IBM system that supports PCI Hotplug using ACPI.
To compile this driver as a module, choose M here: the
module will be called acpiphp_ibm.
When in doubt, say N.
config HOTPLUG_PCI_CPCI bool "CompactPCI Hotplug driver" help Say Y here if you have a CompactPCI system card with CompactPCI hotswap support per the PICMG 2.1 specification.
When in doubt, say N.
config HOTPLUG_PCI_CPCI_ZT5550 tristate "Ziatech ZT5550 CompactPCI Hotplug driver" depends on HOTPLUG_PCI_CPCI && X86 help Say Y here if you have an Performance Technologies (formerly Intel, formerly just Ziatech) Ziatech ZT5550 CompactPCI system card.
To compile this driver as a module, choose M here: the
module will be called cpcihp_zt5550.
When in doubt, say N.
config HOTPLUG_PCI_CPCI_GENERIC tristate "Generic port I/O CompactPCI Hotplug driver" depends on HOTPLUG_PCI_CPCI && X86 help Say Y here if you have a CompactPCI system card that exposes the #ENUM hotswap signal as a bit in a system register that can be read through standard port I/O.
To compile this driver as a module, choose M here: the
module will be called cpcihp_generic.
When in doubt, say N.
config HOTPLUG_PCI_SHPC bool "SHPC PCI Hotplug driver" help Say Y here if you have a motherboard with a SHPC PCI Hotplug controller.
When in doubt, say N.
config HOTPLUG_PCI_POWERNV tristate "PowerPC PowerNV PCI Hotplug driver" depends on PPC_POWERNV && EEH select OF_DYNAMIC help Say Y here if you run PowerPC PowerNV platform that supports PCI Hotplug
To compile this driver as a module, choose M here: the
module will be called pnv-php.
When in doubt, say N.
config HOTPLUG_PCI_RPA tristate "RPA PCI Hotplug driver" depends on PPC_PSERIES && EEH help Say Y here if you have a RPA system that supports PCI Hotplug.
To compile this driver as a module, choose M here: the
module will be called rpaphp.
When in doubt, say N.
config HOTPLUG_PCI_RPA_DLPAR tristate "RPA Dynamic Logical Partitioning for I/O slots" depends on HOTPLUG_PCI_RPA help Say Y here if your system supports Dynamic Logical Partitioning for I/O slots.
To compile this driver as a module, choose M here: the
module will be called rpadlpar_io.
When in doubt, say N.
config HOTPLUG_PCI_S390 bool "System z PCI Hotplug Support" depends on S390 && 64BIT help Say Y here if you want to use the System z PCI Hotplug driver for PCI devices. Without this driver it is not possible to access stand-by PCI functions nor to deconfigure PCI functions.
When in doubt, say Y.
endif # HOTPLUG_PCI