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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /drivers/acpi/Kconfig
parentInitial commit. (diff)
downloadlinux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz
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Adding upstream version 5.10.209.upstream/5.10.209
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
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+# SPDX-License-Identifier: GPL-2.0
+#
+# ACPI Configuration
+#
+
+config ARCH_SUPPORTS_ACPI
+ bool
+
+menuconfig ACPI
+ bool "ACPI (Advanced Configuration and Power Interface) Support"
+ depends on ARCH_SUPPORTS_ACPI
+ select PNP
+ select NLS
+ default y if X86
+ help
+ Advanced Configuration and Power Interface (ACPI) support for
+ Linux requires an ACPI-compliant platform (hardware/firmware),
+ and assumes the presence of OS-directed configuration and power
+ management (OSPM) software. This option will enlarge your
+ kernel by about 70K.
+
+ Linux ACPI provides a robust functional replacement for several
+ legacy configuration and power management interfaces, including
+ the Plug-and-Play BIOS specification (PnP BIOS), the
+ MultiProcessor Specification (MPS), and the Advanced Power
+ Management (APM) specification. If both ACPI and APM support
+ are configured, ACPI is used.
+
+ The project home page for the Linux ACPI subsystem is here:
+ <https://01.org/linux-acpi>
+
+ Linux support for ACPI is based on Intel Corporation's ACPI
+ Component Architecture (ACPI CA). For more information on the
+ ACPI CA, see:
+ <https://acpica.org/>
+
+ ACPI is an open industry specification originally co-developed by
+ Hewlett-Packard, Intel, Microsoft, Phoenix, and Toshiba. Currently,
+ it is developed by the ACPI Specification Working Group (ASWG) under
+ the UEFI Forum and any UEFI member can join the ASWG and contribute
+ to the ACPI specification.
+ The specification is available at:
+ <https://uefi.org/specifications>
+
+if ACPI
+
+config ACPI_LEGACY_TABLES_LOOKUP
+ bool
+
+config ARCH_MIGHT_HAVE_ACPI_PDC
+ bool
+
+config ACPI_GENERIC_GSI
+ bool
+
+config ACPI_SYSTEM_POWER_STATES_SUPPORT
+ bool
+
+config ACPI_CCA_REQUIRED
+ bool
+
+config ACPI_DEBUGGER
+ bool "AML debugger interface"
+ select ACPI_DEBUG
+ help
+ Enable in-kernel debugging of AML facilities: statistics,
+ internal object dump, single step control method execution.
+ This is still under development, currently enabling this only
+ results in the compilation of the ACPICA debugger files.
+
+if ACPI_DEBUGGER
+
+config ACPI_DEBUGGER_USER
+ tristate "Userspace debugger accessiblity"
+ depends on DEBUG_FS
+ help
+ Export /sys/kernel/debug/acpi/acpidbg for userspace utilities
+ to access the debugger functionalities.
+
+endif
+
+config ACPI_SPCR_TABLE
+ bool "ACPI Serial Port Console Redirection Support"
+ default y if X86
+ help
+ Enable support for Serial Port Console Redirection (SPCR) Table.
+ This table provides information about the configuration of the
+ earlycon console.
+
+config ACPI_LPIT
+ bool
+ depends on X86_64
+ default y
+
+config ACPI_SLEEP
+ bool
+ depends on SUSPEND || HIBERNATION
+ depends on ACPI_SYSTEM_POWER_STATES_SUPPORT
+ default y
+
+config ACPI_REV_OVERRIDE_POSSIBLE
+ bool "Allow supported ACPI revision to be overridden"
+ depends on X86
+ default y
+ help
+ The platform firmware on some systems expects Linux to return "5" as
+ the supported ACPI revision which makes it expose system configuration
+ information in a special way.
+
+ For example, based on what ACPI exports as the supported revision,
+ Dell XPS 13 (2015) configures its audio device to either work in HDA
+ mode or in I2S mode, where the former is supposed to be used on Linux
+ until the latter is fully supported (in the kernel as well as in user
+ space).
+
+ This option enables a DMI-based quirk for the above Dell machine (so
+ that HDA audio is exposed by the platform firmware to the kernel) and
+ makes it possible to force the kernel to return "5" as the supported
+ ACPI revision via the "acpi_rev_override" command line switch.
+
+config ACPI_EC_DEBUGFS
+ tristate "EC read/write access through /sys/kernel/debug/ec"
+ help
+ Say N to disable Embedded Controller /sys/kernel/debug interface
+
+ Be aware that using this interface can confuse your Embedded
+ Controller in a way that a normal reboot is not enough. You then
+ have to power off your system, and remove the laptop battery for
+ some seconds.
+ An Embedded Controller typically is available on laptops and reads
+ sensor values like battery state and temperature.
+ The kernel accesses the EC through ACPI parsed code provided by BIOS
+ tables. This option allows to access the EC directly without ACPI
+ code being involved.
+ Thus this option is a debug option that helps to write ACPI drivers
+ and can be used to identify ACPI code or EC firmware bugs.
+
+config ACPI_AC
+ tristate "AC Adapter"
+ select POWER_SUPPLY
+ default y
+ help
+ This driver supports the AC Adapter object, which indicates
+ whether a system is on AC or not. If you have a system that can
+ switch between A/C and battery, say Y.
+
+ To compile this driver as a module, choose M here:
+ the module will be called ac.
+
+config ACPI_BATTERY
+ tristate "Battery"
+ select POWER_SUPPLY
+ default y
+ help
+ This driver adds support for battery information through
+ /proc/acpi/battery. If you have a mobile system with a battery,
+ say Y.
+
+ To compile this driver as a module, choose M here:
+ the module will be called battery.
+
+config ACPI_BUTTON
+ tristate "Button"
+ depends on INPUT
+ default y
+ help
+ This driver handles events on the power, sleep, and lid buttons.
+ A daemon reads events from input devices or via netlink and
+ performs user-defined actions such as shutting down the system.
+ This is necessary for software-controlled poweroff.
+
+ To compile this driver as a module, choose M here:
+ the module will be called button.
+
+config ACPI_TINY_POWER_BUTTON
+ tristate "Tiny Power Button Driver"
+ depends on !ACPI_BUTTON
+ help
+ This driver provides a tiny alternative to the ACPI Button driver.
+ The tiny power button driver only handles the power button. Rather
+ than notifying userspace via the input layer or a netlink event, this
+ driver directly signals the init process to shut down.
+
+ This driver is particularly suitable for cloud and VM environments,
+ which use a simulated power button to initiate a controlled poweroff,
+ but which may not want to run a separate userspace daemon to process
+ input events.
+
+config ACPI_TINY_POWER_BUTTON_SIGNAL
+ int "Tiny Power Button Signal"
+ depends on ACPI_TINY_POWER_BUTTON
+ default 38
+ help
+ Default signal to send to init in response to the power button.
+
+ Likely values here include 38 (SIGRTMIN+4) to power off, or 2
+ (SIGINT) to simulate Ctrl+Alt+Del.
+
+config ACPI_VIDEO
+ tristate "Video"
+ depends on X86 && BACKLIGHT_CLASS_DEVICE
+ depends on INPUT
+ select THERMAL
+ help
+ This driver implements the ACPI Extensions For Display Adapters
+ for integrated graphics devices on motherboard, as specified in
+ ACPI 2.0 Specification, Appendix B. This supports basic operations
+ such as defining the video POST device, retrieving EDID information,
+ and setting up a video output.
+
+ To compile this driver as a module, choose M here:
+ the module will be called video.
+
+config ACPI_FAN
+ tristate "Fan"
+ depends on THERMAL
+ default y
+ help
+ This driver supports ACPI fan devices, allowing user-mode
+ applications to perform basic fan control (on, off, status).
+
+ To compile this driver as a module, choose M here:
+ the module will be called fan.
+
+config ACPI_TAD
+ tristate "ACPI Time and Alarm (TAD) Device Support"
+ depends on SYSFS && PM_SLEEP
+ help
+ The ACPI Time and Alarm (TAD) device is an alternative to the Real
+ Time Clock (RTC). Its wake timers allow the system to transition from
+ the S3 (or optionally S4/S5) state to S0 state after a time period
+ elapses. In comparison with the RTC Alarm, the TAD provides a larger
+ scale of flexibility in the wake timers. The time capabilities of the
+ TAD maintain the time of day information across platform power
+ transitions, and keep track of time even when the platform is turned
+ off.
+
+config ACPI_DOCK
+ bool "Dock"
+ help
+ This driver supports ACPI-controlled docking stations and removable
+ drive bays such as the IBM Ultrabay and the Dell Module Bay.
+
+config ACPI_CPU_FREQ_PSS
+ bool
+ select THERMAL
+
+config ACPI_PROCESSOR_CSTATE
+ def_bool y
+ depends on ACPI_PROCESSOR
+ depends on IA64 || X86
+
+config ACPI_PROCESSOR_IDLE
+ bool
+ select CPU_IDLE
+
+config ACPI_MCFG
+ bool
+
+config ACPI_CPPC_LIB
+ bool
+ depends on ACPI_PROCESSOR
+ select MAILBOX
+ select PCC
+ help
+ If this option is enabled, this file implements common functionality
+ to parse CPPC tables as described in the ACPI 5.1+ spec. The
+ routines implemented are meant to be used by other
+ drivers to control CPU performance using CPPC semantics.
+ If your platform does not support CPPC in firmware,
+ leave this option disabled.
+
+config ACPI_PROCESSOR
+ tristate "Processor"
+ depends on X86 || IA64 || ARM64
+ select ACPI_PROCESSOR_IDLE
+ select ACPI_CPU_FREQ_PSS if X86 || IA64
+ default y
+ help
+ This driver adds support for the ACPI Processor package. It is required
+ by several flavors of cpufreq performance-state, thermal, throttling and
+ idle drivers.
+
+ To compile this driver as a module, choose M here:
+ the module will be called processor.
+
+config ACPI_IPMI
+ tristate "IPMI"
+ depends on IPMI_HANDLER
+ help
+ This driver enables the ACPI to access the BMC controller. And it
+ uses the IPMI request/response message to communicate with BMC
+ controller, which can be found on on the server.
+
+ To compile this driver as a module, choose M here:
+ the module will be called as acpi_ipmi.
+
+config ACPI_HOTPLUG_CPU
+ bool
+ depends on ACPI_PROCESSOR && HOTPLUG_CPU
+ select ACPI_CONTAINER
+ default y
+
+config ACPI_PROCESSOR_AGGREGATOR
+ tristate "Processor Aggregator"
+ depends on ACPI_PROCESSOR
+ depends on X86
+ help
+ ACPI 4.0 defines processor Aggregator, which enables OS to perform
+ specific processor configuration and control that applies to all
+ processors in the platform. Currently only logical processor idling
+ is defined, which is to reduce power consumption. This driver
+ supports the new device.
+
+config ACPI_THERMAL
+ tristate "Thermal Zone"
+ depends on ACPI_PROCESSOR
+ select THERMAL
+ default y
+ help
+ This driver supports ACPI thermal zones. Most mobile and
+ some desktop systems support ACPI thermal zones. It is HIGHLY
+ recommended that this option be enabled, as your processor(s)
+ may be damaged without it.
+
+ To compile this driver as a module, choose M here:
+ the module will be called thermal.
+
+config ACPI_CUSTOM_DSDT_FILE
+ string "Custom DSDT Table file to include"
+ default ""
+ depends on !STANDALONE
+ help
+ This option supports a custom DSDT by linking it into the kernel.
+ See Documentation/admin-guide/acpi/dsdt-override.rst
+
+ Enter the full path name to the file which includes the AmlCode
+ or dsdt_aml_code declaration.
+
+ If unsure, don't enter a file name.
+
+config ACPI_CUSTOM_DSDT
+ bool
+ default ACPI_CUSTOM_DSDT_FILE != ""
+
+config ARCH_HAS_ACPI_TABLE_UPGRADE
+ def_bool n
+
+config ACPI_TABLE_UPGRADE
+ bool "Allow upgrading ACPI tables via initrd"
+ depends on BLK_DEV_INITRD && ARCH_HAS_ACPI_TABLE_UPGRADE
+ default y
+ help
+ This option provides functionality to upgrade arbitrary ACPI tables
+ via initrd. No functional change if no ACPI tables are passed via
+ initrd, therefore it's safe to say Y.
+ See Documentation/admin-guide/acpi/initrd_table_override.rst for details
+
+config ACPI_TABLE_OVERRIDE_VIA_BUILTIN_INITRD
+ bool "Override ACPI tables from built-in initrd"
+ depends on ACPI_TABLE_UPGRADE
+ depends on INITRAMFS_SOURCE!="" && INITRAMFS_COMPRESSION_NONE
+ help
+ This option provides functionality to override arbitrary ACPI tables
+ from built-in uncompressed initrd.
+
+ See Documentation/admin-guide/acpi/initrd_table_override.rst for details
+
+config ACPI_DEBUG
+ bool "Debug Statements"
+ help
+ The ACPI subsystem can produce debug output. Saying Y enables this
+ output and increases the kernel size by around 50K.
+
+ Use the acpi.debug_layer and acpi.debug_level kernel command-line
+ parameters documented in Documentation/firmware-guide/acpi/debug.rst and
+ Documentation/admin-guide/kernel-parameters.rst to control the type and
+ amount of debug output.
+
+config ACPI_PCI_SLOT
+ bool "PCI slot detection driver"
+ depends on SYSFS && PCI
+ help
+ This driver creates entries in /sys/bus/pci/slots/ for all PCI
+ slots in the system. This can help correlate PCI bus addresses,
+ i.e., segment/bus/device/function tuples, with physical slots in
+ the system. If you are unsure, say N.
+
+config ACPI_CONTAINER
+ bool "Container and Module Devices"
+ default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU)
+ help
+ This driver supports ACPI Container and Module devices (IDs
+ ACPI0004, PNP0A05, and PNP0A06).
+
+ This helps support hotplug of nodes, CPUs, and memory.
+
+ To compile this driver as a module, choose M here:
+ the module will be called container.
+
+config ACPI_HOTPLUG_MEMORY
+ bool "Memory Hotplug"
+ depends on MEMORY_HOTPLUG
+ help
+ This driver supports ACPI memory hotplug. The driver
+ fields notifications on ACPI memory devices (PNP0C80),
+ which represent memory ranges that may be onlined or
+ offlined during runtime.
+
+ If your hardware and firmware do not support adding or
+ removing memory devices at runtime, you need not enable
+ this driver.
+
+ To compile this driver as a module, choose M here:
+ the module will be called acpi_memhotplug.
+
+config ACPI_HOTPLUG_IOAPIC
+ bool
+ depends on PCI
+ depends on X86_IO_APIC
+ default y
+
+config ACPI_SBS
+ tristate "Smart Battery System"
+ depends on X86
+ select POWER_SUPPLY
+ help
+ This driver supports the Smart Battery System, another
+ type of access to battery information, found on some laptops.
+
+ To compile this driver as a module, choose M here:
+ the modules will be called sbs and sbshc.
+
+config ACPI_HED
+ tristate "Hardware Error Device"
+ help
+ This driver supports the Hardware Error Device (PNP0C33),
+ which is used to report some hardware errors notified via
+ SCI, mainly the corrected errors.
+
+config ACPI_CUSTOM_METHOD
+ tristate "Allow ACPI methods to be inserted/replaced at run time"
+ depends on DEBUG_FS
+ help
+ This debug facility allows ACPI AML methods to be inserted and/or
+ replaced without rebooting the system. For details refer to:
+ Documentation/firmware-guide/acpi/method-customizing.rst.
+
+ NOTE: This option is security sensitive, because it allows arbitrary
+ kernel memory to be written to by root (uid=0) users, allowing them
+ to bypass certain security measures (e.g. if root is not allowed to
+ load additional kernel modules after boot, this feature may be used
+ to override that restriction).
+
+config ACPI_BGRT
+ bool "Boottime Graphics Resource Table support"
+ depends on EFI && (X86 || ARM64)
+ help
+ This driver adds support for exposing the ACPI Boottime Graphics
+ Resource Table, which allows the operating system to obtain
+ data from the firmware boot splash. It will appear under
+ /sys/firmware/acpi/bgrt/ .
+
+config ACPI_REDUCED_HARDWARE_ONLY
+ bool "Hardware-reduced ACPI support only" if EXPERT
+ def_bool n
+ help
+ This config item changes the way the ACPI code is built. When this
+ option is selected, the kernel will use a specialized version of
+ ACPICA that ONLY supports the ACPI "reduced hardware" mode. The
+ resulting kernel will be smaller but it will also be restricted to
+ running in ACPI reduced hardware mode ONLY.
+
+ If you are unsure what to do, do not enable this option.
+
+source "drivers/acpi/nfit/Kconfig"
+source "drivers/acpi/numa/Kconfig"
+source "drivers/acpi/apei/Kconfig"
+source "drivers/acpi/dptf/Kconfig"
+
+config ACPI_WATCHDOG
+ bool
+
+config ACPI_EXTLOG
+ tristate "Extended Error Log support"
+ depends on X86_MCE && X86_LOCAL_APIC && EDAC
+ select UEFI_CPER
+ help
+ Certain usages such as Predictive Failure Analysis (PFA) require
+ more information about the error than what can be described in
+ processor machine check banks. Most server processors log
+ additional information about the error in processor uncore
+ registers. Since the addresses and layout of these registers vary
+ widely from one processor to another, system software cannot
+ readily make use of them. To complicate matters further, some of
+ the additional error information cannot be constructed without
+ detailed knowledge about platform topology.
+
+ Enhanced MCA Logging allows firmware to provide additional error
+ information to system software, synchronous with MCE or CMCI. This
+ driver adds support for that functionality with corresponding
+ tracepoint which carries that information to userspace.
+
+config ACPI_ADXL
+ bool
+
+config ACPI_CONFIGFS
+ tristate "ACPI configfs support"
+ select CONFIGFS_FS
+ help
+ Select this option to enable support for ACPI configuration from
+ userspace. The configurable ACPI groups will be visible under
+ /config/acpi, assuming configfs is mounted under /config.
+
+if ARM64
+source "drivers/acpi/arm64/Kconfig"
+
+config ACPI_PPTT
+ bool
+endif
+
+source "drivers/acpi/pmic/Kconfig"
+
+endif # ACPI
+
+config X86_PM_TIMER
+ bool "Power Management Timer Support" if EXPERT
+ depends on X86 && (ACPI || JAILHOUSE_GUEST)
+ default y
+ help
+ The Power Management Timer is available on all ACPI-capable,
+ in most cases even if ACPI is unusable or blacklisted.
+
+ This timing source is not affected by power management features
+ like aggressive processor idling, throttling, frequency and/or
+ voltage scaling, unlike the commonly used Time Stamp Counter
+ (TSC) timing source.
+
+ You should nearly always say Y here because many modern
+ systems require this timer.