mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-24 04:47:12 +07:00
e9a83bd232
- A fair pile of RST conversions, many from Mauro. These create more
than the usual number of simple but annoying merge conflicts with other
trees, unfortunately. He has a lot more of these waiting on the wings
that, I think, will go to you directly later on.
- A new document on how to use merges and rebases in kernel repos, and one
on Spectre vulnerabilities.
- Various improvements to the build system, including automatic markup of
function() references because some people, for reasons I will never
understand, were of the opinion that :c:func:``function()`` is
unattractive and not fun to type.
- We now recommend using sphinx 1.7, but still support back to 1.4.
- Lots of smaller improvements, warning fixes, typo fixes, etc.
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Merge tag 'docs-5.3' of git://git.lwn.net/linux
Pull Documentation updates from Jonathan Corbet:
"It's been a relatively busy cycle for docs:
- A fair pile of RST conversions, many from Mauro. These create more
than the usual number of simple but annoying merge conflicts with
other trees, unfortunately. He has a lot more of these waiting on
the wings that, I think, will go to you directly later on.
- A new document on how to use merges and rebases in kernel repos,
and one on Spectre vulnerabilities.
- Various improvements to the build system, including automatic
markup of function() references because some people, for reasons I
will never understand, were of the opinion that
:c:func:``function()`` is unattractive and not fun to type.
- We now recommend using sphinx 1.7, but still support back to 1.4.
- Lots of smaller improvements, warning fixes, typo fixes, etc"
* tag 'docs-5.3' of git://git.lwn.net/linux: (129 commits)
docs: automarkup.py: ignore exceptions when seeking for xrefs
docs: Move binderfs to admin-guide
Disable Sphinx SmartyPants in HTML output
doc: RCU callback locks need only _bh, not necessarily _irq
docs: format kernel-parameters -- as code
Doc : doc-guide : Fix a typo
platform: x86: get rid of a non-existent document
Add the RCU docs to the core-api manual
Documentation: RCU: Add TOC tree hooks
Documentation: RCU: Rename txt files to rst
Documentation: RCU: Convert RCU UP systems to reST
Documentation: RCU: Convert RCU linked list to reST
Documentation: RCU: Convert RCU basic concepts to reST
docs: filesystems: Remove uneeded .rst extension on toctables
scripts/sphinx-pre-install: fix out-of-tree build
docs: zh_CN: submitting-drivers.rst: Remove a duplicated Documentation/
Documentation: PGP: update for newer HW devices
Documentation: Add section about CPU vulnerabilities for Spectre
Documentation: platform: Delete x86-laptop-drivers.txt
docs: Note that :c:func: should no longer be used
...
596 lines
19 KiB
Plaintext
596 lines
19 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
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#
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# ACPI Configuration
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#
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config ARCH_SUPPORTS_ACPI
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bool
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menuconfig ACPI
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bool "ACPI (Advanced Configuration and Power Interface) Support"
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depends on ARCH_SUPPORTS_ACPI
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select PNP
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select NLS
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default y if X86
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help
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Advanced Configuration and Power Interface (ACPI) support for
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Linux requires an ACPI-compliant platform (hardware/firmware),
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and assumes the presence of OS-directed configuration and power
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management (OSPM) software. This option will enlarge your
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kernel by about 70K.
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Linux ACPI provides a robust functional replacement for several
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legacy configuration and power management interfaces, including
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the Plug-and-Play BIOS specification (PnP BIOS), the
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MultiProcessor Specification (MPS), and the Advanced Power
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Management (APM) specification. If both ACPI and APM support
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are configured, ACPI is used.
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The project home page for the Linux ACPI subsystem is here:
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<https://01.org/linux-acpi>
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Linux support for ACPI is based on Intel Corporation's ACPI
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Component Architecture (ACPI CA). For more information on the
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ACPI CA, see:
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<http://acpica.org/>
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ACPI is an open industry specification originally co-developed by
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Hewlett-Packard, Intel, Microsoft, Phoenix, and Toshiba. Currently,
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it is developed by the ACPI Specification Working Group (ASWG) under
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the UEFI Forum and any UEFI member can join the ASWG and contribute
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to the ACPI specification.
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The specification is available at:
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<http://www.acpi.info>
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<http://www.uefi.org/acpi/specs>
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if ACPI
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config ACPI_LEGACY_TABLES_LOOKUP
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bool
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config ARCH_MIGHT_HAVE_ACPI_PDC
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bool
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config ACPI_GENERIC_GSI
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bool
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config ACPI_SYSTEM_POWER_STATES_SUPPORT
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bool
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config ACPI_CCA_REQUIRED
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bool
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config ACPI_DEBUGGER
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bool "AML debugger interface"
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select ACPI_DEBUG
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help
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Enable in-kernel debugging of AML facilities: statistics,
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internal object dump, single step control method execution.
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This is still under development, currently enabling this only
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results in the compilation of the ACPICA debugger files.
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if ACPI_DEBUGGER
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config ACPI_DEBUGGER_USER
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tristate "Userspace debugger accessiblity"
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depends on DEBUG_FS
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help
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Export /sys/kernel/debug/acpi/acpidbg for userspace utilities
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to access the debugger functionalities.
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endif
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config ACPI_SPCR_TABLE
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bool "ACPI Serial Port Console Redirection Support"
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default y if X86
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help
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Enable support for Serial Port Console Redirection (SPCR) Table.
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This table provides information about the configuration of the
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earlycon console.
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config ACPI_LPIT
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bool
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depends on X86_64
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default y
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config ACPI_SLEEP
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bool
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depends on SUSPEND || HIBERNATION
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depends on ACPI_SYSTEM_POWER_STATES_SUPPORT
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default y
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config ACPI_PROCFS_POWER
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bool "Deprecated power /proc/acpi directories"
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depends on X86 && PROC_FS
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help
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For backwards compatibility, this option allows
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deprecated power /proc/acpi/ directories to exist, even when
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they have been replaced by functions in /sys.
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The deprecated directories (and their replacements) include:
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/proc/acpi/battery/* (/sys/class/power_supply/*) and
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/proc/acpi/ac_adapter/* (sys/class/power_supply/*).
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This option has no effect on /proc/acpi/ directories
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and functions which do not yet exist in /sys.
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This option, together with the proc directories, will be
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deleted in the future.
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Say N to delete power /proc/acpi/ directories that have moved to /sys.
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config ACPI_REV_OVERRIDE_POSSIBLE
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bool "Allow supported ACPI revision to be overridden"
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depends on X86
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default y
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help
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The platform firmware on some systems expects Linux to return "5" as
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the supported ACPI revision which makes it expose system configuration
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information in a special way.
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For example, based on what ACPI exports as the supported revision,
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Dell XPS 13 (2015) configures its audio device to either work in HDA
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mode or in I2S mode, where the former is supposed to be used on Linux
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until the latter is fully supported (in the kernel as well as in user
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space).
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This option enables a DMI-based quirk for the above Dell machine (so
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that HDA audio is exposed by the platform firmware to the kernel) and
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makes it possible to force the kernel to return "5" as the supported
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ACPI revision via the "acpi_rev_override" command line switch.
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config ACPI_EC_DEBUGFS
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tristate "EC read/write access through /sys/kernel/debug/ec"
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help
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Say N to disable Embedded Controller /sys/kernel/debug interface
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Be aware that using this interface can confuse your Embedded
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Controller in a way that a normal reboot is not enough. You then
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have to power off your system, and remove the laptop battery for
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some seconds.
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An Embedded Controller typically is available on laptops and reads
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sensor values like battery state and temperature.
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The kernel accesses the EC through ACPI parsed code provided by BIOS
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tables. This option allows to access the EC directly without ACPI
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code being involved.
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Thus this option is a debug option that helps to write ACPI drivers
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and can be used to identify ACPI code or EC firmware bugs.
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config ACPI_AC
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tristate "AC Adapter"
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select POWER_SUPPLY
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default y
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help
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This driver supports the AC Adapter object, which indicates
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whether a system is on AC or not. If you have a system that can
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switch between A/C and battery, say Y.
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To compile this driver as a module, choose M here:
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the module will be called ac.
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config ACPI_BATTERY
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tristate "Battery"
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select POWER_SUPPLY
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default y
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help
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This driver adds support for battery information through
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/proc/acpi/battery. If you have a mobile system with a battery,
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say Y.
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To compile this driver as a module, choose M here:
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the module will be called battery.
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config ACPI_BUTTON
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tristate "Button"
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depends on INPUT
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default y
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help
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This driver handles events on the power, sleep, and lid buttons.
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A daemon reads events from input devices or via netlink and
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performs user-defined actions such as shutting down the system.
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This is necessary for software-controlled poweroff.
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To compile this driver as a module, choose M here:
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the module will be called button.
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config ACPI_VIDEO
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tristate "Video"
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depends on X86 && BACKLIGHT_CLASS_DEVICE
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depends on INPUT
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select THERMAL
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help
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This driver implements the ACPI Extensions For Display Adapters
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for integrated graphics devices on motherboard, as specified in
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ACPI 2.0 Specification, Appendix B. This supports basic operations
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such as defining the video POST device, retrieving EDID information,
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and setting up a video output.
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To compile this driver as a module, choose M here:
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the module will be called video.
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config ACPI_FAN
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tristate "Fan"
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depends on THERMAL
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default y
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help
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This driver supports ACPI fan devices, allowing user-mode
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applications to perform basic fan control (on, off, status).
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To compile this driver as a module, choose M here:
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the module will be called fan.
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config ACPI_TAD
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tristate "ACPI Time and Alarm (TAD) Device Support"
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depends on SYSFS && PM_SLEEP
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help
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The ACPI Time and Alarm (TAD) device is an alternative to the Real
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Time Clock (RTC). Its wake timers allow the system to transition from
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the S3 (or optionally S4/S5) state to S0 state after a time period
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elapses. In comparison with the RTC Alarm, the TAD provides a larger
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scale of flexibility in the wake timers. The time capabilities of the
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TAD maintain the time of day information across platform power
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transitions, and keep track of time even when the platform is turned
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off.
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config ACPI_DOCK
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bool "Dock"
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help
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This driver supports ACPI-controlled docking stations and removable
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drive bays such as the IBM Ultrabay and the Dell Module Bay.
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config ACPI_CPU_FREQ_PSS
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bool
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select THERMAL
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config ACPI_PROCESSOR_CSTATE
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def_bool y
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depends on IA64 || X86
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config ACPI_PROCESSOR_IDLE
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bool
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select CPU_IDLE
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config ACPI_MCFG
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bool
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config ACPI_CPPC_LIB
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bool
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depends on ACPI_PROCESSOR
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select MAILBOX
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select PCC
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help
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If this option is enabled, this file implements common functionality
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to parse CPPC tables as described in the ACPI 5.1+ spec. The
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routines implemented are meant to be used by other
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drivers to control CPU performance using CPPC semantics.
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If your platform does not support CPPC in firmware,
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leave this option disabled.
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config ACPI_PROCESSOR
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tristate "Processor"
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depends on X86 || IA64 || ARM64
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select ACPI_PROCESSOR_IDLE
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select ACPI_CPU_FREQ_PSS if X86 || IA64
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default y
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help
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This driver adds support for the ACPI Processor package. It is required
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by several flavors of cpufreq performance-state, thermal, throttling and
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idle drivers.
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To compile this driver as a module, choose M here:
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the module will be called processor.
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config ACPI_IPMI
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tristate "IPMI"
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depends on IPMI_HANDLER
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help
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This driver enables the ACPI to access the BMC controller. And it
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uses the IPMI request/response message to communicate with BMC
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controller, which can be found on on the server.
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To compile this driver as a module, choose M here:
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the module will be called as acpi_ipmi.
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config ACPI_HOTPLUG_CPU
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bool
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depends on ACPI_PROCESSOR && HOTPLUG_CPU
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select ACPI_CONTAINER
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default y
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config ACPI_PROCESSOR_AGGREGATOR
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tristate "Processor Aggregator"
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depends on ACPI_PROCESSOR
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depends on X86
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help
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ACPI 4.0 defines processor Aggregator, which enables OS to perform
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specific processor configuration and control that applies to all
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processors in the platform. Currently only logical processor idling
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is defined, which is to reduce power consumption. This driver
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supports the new device.
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config ACPI_THERMAL
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tristate "Thermal Zone"
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depends on ACPI_PROCESSOR
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select THERMAL
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default y
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help
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This driver supports ACPI thermal zones. Most mobile and
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some desktop systems support ACPI thermal zones. It is HIGHLY
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recommended that this option be enabled, as your processor(s)
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may be damaged without it.
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To compile this driver as a module, choose M here:
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the module will be called thermal.
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config ACPI_NUMA
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bool "NUMA support"
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depends on NUMA
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depends on (X86 || IA64 || ARM64)
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default y if IA64_GENERIC || IA64_SGI_SN2 || ARM64
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config ACPI_CUSTOM_DSDT_FILE
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string "Custom DSDT Table file to include"
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default ""
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depends on !STANDALONE
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help
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This option supports a custom DSDT by linking it into the kernel.
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See Documentation/admin-guide/acpi/dsdt-override.rst
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Enter the full path name to the file which includes the AmlCode
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or dsdt_aml_code declaration.
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If unsure, don't enter a file name.
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config ACPI_CUSTOM_DSDT
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bool
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default ACPI_CUSTOM_DSDT_FILE != ""
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config ARCH_HAS_ACPI_TABLE_UPGRADE
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def_bool n
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config ACPI_TABLE_UPGRADE
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bool "Allow upgrading ACPI tables via initrd"
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depends on BLK_DEV_INITRD && ARCH_HAS_ACPI_TABLE_UPGRADE
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default y
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help
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This option provides functionality to upgrade arbitrary ACPI tables
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via initrd. No functional change if no ACPI tables are passed via
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initrd, therefore it's safe to say Y.
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See Documentation/admin-guide/acpi/initrd_table_override.rst for details
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config ACPI_TABLE_OVERRIDE_VIA_BUILTIN_INITRD
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bool "Override ACPI tables from built-in initrd"
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depends on ACPI_TABLE_UPGRADE
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depends on INITRAMFS_SOURCE!="" && INITRAMFS_COMPRESSION=""
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help
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This option provides functionality to override arbitrary ACPI tables
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from built-in uncompressed initrd.
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See Documentation/admin-guide/acpi/initrd_table_override.rst for details
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config ACPI_DEBUG
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bool "Debug Statements"
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help
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The ACPI subsystem can produce debug output. Saying Y enables this
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output and increases the kernel size by around 50K.
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Use the acpi.debug_layer and acpi.debug_level kernel command-line
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parameters documented in Documentation/firmware-guide/acpi/debug.rst and
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Documentation/admin-guide/kernel-parameters.rst to control the type and
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amount of debug output.
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config ACPI_PCI_SLOT
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bool "PCI slot detection driver"
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depends on SYSFS && PCI
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help
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This driver creates entries in /sys/bus/pci/slots/ for all PCI
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slots in the system. This can help correlate PCI bus addresses,
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i.e., segment/bus/device/function tuples, with physical slots in
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the system. If you are unsure, say N.
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config ACPI_CONTAINER
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bool "Container and Module Devices"
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default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU)
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help
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This driver supports ACPI Container and Module devices (IDs
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ACPI0004, PNP0A05, and PNP0A06).
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This helps support hotplug of nodes, CPUs, and memory.
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To compile this driver as a module, choose M here:
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the module will be called container.
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config ACPI_HOTPLUG_MEMORY
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bool "Memory Hotplug"
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depends on MEMORY_HOTPLUG
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help
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This driver supports ACPI memory hotplug. The driver
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fields notifications on ACPI memory devices (PNP0C80),
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which represent memory ranges that may be onlined or
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offlined during runtime.
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If your hardware and firmware do not support adding or
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removing memory devices at runtime, you need not enable
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this driver.
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To compile this driver as a module, choose M here:
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the module will be called acpi_memhotplug.
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config ACPI_HOTPLUG_IOAPIC
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bool
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depends on PCI
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depends on X86_IO_APIC
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default y
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config ACPI_SBS
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tristate "Smart Battery System"
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depends on X86
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select POWER_SUPPLY
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help
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This driver supports the Smart Battery System, another
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type of access to battery information, found on some laptops.
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To compile this driver as a module, choose M here:
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the modules will be called sbs and sbshc.
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config ACPI_HED
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tristate "Hardware Error Device"
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help
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This driver supports the Hardware Error Device (PNP0C33),
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which is used to report some hardware errors notified via
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SCI, mainly the corrected errors.
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config ACPI_CUSTOM_METHOD
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tristate "Allow ACPI methods to be inserted/replaced at run time"
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depends on DEBUG_FS
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help
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This debug facility allows ACPI AML methods to be inserted and/or
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replaced without rebooting the system. For details refer to:
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Documentation/firmware-guide/acpi/method-customizing.rst.
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NOTE: This option is security sensitive, because it allows arbitrary
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kernel memory to be written to by root (uid=0) users, allowing them
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to bypass certain security measures (e.g. if root is not allowed to
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load additional kernel modules after boot, this feature may be used
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to override that restriction).
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config ACPI_BGRT
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bool "Boottime Graphics Resource Table support"
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depends on EFI && (X86 || ARM64)
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help
|
|
This driver adds support for exposing the ACPI Boottime Graphics
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|
Resource Table, which allows the operating system to obtain
|
|
data from the firmware boot splash. It will appear under
|
|
/sys/firmware/acpi/bgrt/ .
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|
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config ACPI_REDUCED_HARDWARE_ONLY
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bool "Hardware-reduced ACPI support only" if EXPERT
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def_bool n
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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.
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|
|
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If you are unsure what to do, do not enable this option.
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|
|
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source "drivers/acpi/nfit/Kconfig"
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source "drivers/acpi/hmat/Kconfig"
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|
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source "drivers/acpi/apei/Kconfig"
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source "drivers/acpi/dptf/Kconfig"
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|
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config ACPI_WATCHDOG
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bool
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|
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config ACPI_EXTLOG
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|
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
|
|
|
|
menuconfig PMIC_OPREGION
|
|
bool "PMIC (Power Management Integrated Circuit) operation region support"
|
|
help
|
|
Select this option to enable support for ACPI operation
|
|
region of the PMIC chip. The operation region can be used
|
|
to control power rails and sensor reading/writing on the
|
|
PMIC chip.
|
|
|
|
if PMIC_OPREGION
|
|
config CRC_PMIC_OPREGION
|
|
bool "ACPI operation region support for CrystalCove PMIC"
|
|
depends on INTEL_SOC_PMIC
|
|
help
|
|
This config adds ACPI operation region support for CrystalCove PMIC.
|
|
|
|
config XPOWER_PMIC_OPREGION
|
|
bool "ACPI operation region support for XPower AXP288 PMIC"
|
|
depends on MFD_AXP20X_I2C && IOSF_MBI=y
|
|
help
|
|
This config adds ACPI operation region support for XPower AXP288 PMIC.
|
|
|
|
config BXT_WC_PMIC_OPREGION
|
|
bool "ACPI operation region support for BXT WhiskeyCove PMIC"
|
|
depends on INTEL_SOC_PMIC_BXTWC
|
|
help
|
|
This config adds ACPI operation region support for BXT WhiskeyCove PMIC.
|
|
|
|
config CHT_WC_PMIC_OPREGION
|
|
bool "ACPI operation region support for CHT Whiskey Cove PMIC"
|
|
depends on INTEL_SOC_PMIC_CHTWC
|
|
help
|
|
This config adds ACPI operation region support for CHT Whiskey Cove PMIC.
|
|
|
|
config CHT_DC_TI_PMIC_OPREGION
|
|
bool "ACPI operation region support for Dollar Cove TI PMIC"
|
|
depends on INTEL_SOC_PMIC_CHTDC_TI
|
|
help
|
|
This config adds ACPI operation region support for Dollar Cove TI PMIC.
|
|
|
|
endif
|
|
|
|
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
|
|
|
|
config TPS68470_PMIC_OPREGION
|
|
bool "ACPI operation region support for TPS68470 PMIC"
|
|
depends on MFD_TPS68470
|
|
help
|
|
This config adds ACPI operation region support for TI TPS68470 PMIC.
|
|
TPS68470 device is an advanced power management unit that powers
|
|
a Compact Camera Module (CCM), generates clocks for image sensors,
|
|
drives a dual LED for flash and incorporates two LED drivers for
|
|
general purpose indicators.
|
|
This driver enables ACPI operation region support control voltage
|
|
regulators and clocks.
|
|
|
|
This option is a bool as it provides an ACPI operation
|
|
region, which must be available before any of the devices
|
|
using this, are probed.
|
|
|
|
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.
|