drivers/acpi/Kconfig

   1 #
   2 # ACPI Configuration
   3 #
   4
   5 menuconfig ACPI
   6         bool "ACPI (Advanced Configuration and Power Interface) Support"
   7         depends on !IA64_HP_SIM
   8         depends on IA64 || X86 || (ARM64 && EXPERT)
   9         depends on PCI
  10         select PNP
  11         default y
  12         help
  13           Advanced Configuration and Power Interface (ACPI) support for
  14           Linux requires an ACPI-compliant platform (hardware/firmware),
  15           and assumes the presence of OS-directed configuration and power
  16           management (OSPM) software.  This option will enlarge your
  17           kernel by about 70K.
  18
  19           Linux ACPI provides a robust functional replacement for several
  20           legacy configuration and power management interfaces, including
  21           the Plug-and-Play BIOS specification (PnP BIOS), the
  22           MultiProcessor Specification (MPS), and the Advanced Power
  23           Management (APM) specification.  If both ACPI and APM support
  24           are configured, ACPI is used.
  25
  26           The project home page for the Linux ACPI subsystem is here:
  27           <https://01.org/linux-acpi>
  28
  29           Linux support for ACPI is based on Intel Corporation's ACPI
  30           Component Architecture (ACPI CA).  For more information on the
  31           ACPI CA, see:
  32           <http://acpica.org/>
  33
  34           ACPI is an open industry specification originally co-developed by
  35           Hewlett-Packard, Intel, Microsoft, Phoenix, and Toshiba. Currently,
  36           it is developed by the ACPI Specification Working Group (ASWG) under
  37           the UEFI Forum and any UEFI member can join the ASWG and contribute
  38           to the ACPI specification.
  39           The specification is available at:
  40           <http://www.acpi.info>
  41           <http://www.uefi.org/acpi/specs>
  42
  43 if ACPI
  44
  45 config ACPI_LEGACY_TABLES_LOOKUP
  46         bool
  47
  48 config ARCH_MIGHT_HAVE_ACPI_PDC
  49         bool
  50
  51 config ACPI_GENERIC_GSI
  52         bool
  53
  54 config ACPI_SYSTEM_POWER_STATES_SUPPORT
  55         bool
  56
  57 config ACPI_CCA_REQUIRED
  58         bool
  59
  60 config ACPI_SLEEP
  61         bool
  62         depends on SUSPEND || HIBERNATION
  63         depends on ACPI_SYSTEM_POWER_STATES_SUPPORT
  64         default y
  65
  66 config ACPI_PROCFS_POWER
  67         bool "Deprecated power /proc/acpi directories"
  68         depends on X86 && PROC_FS
  69         help
  70           For backwards compatibility, this option allows
  71           deprecated power /proc/acpi/ directories to exist, even when
  72           they have been replaced by functions in /sys.
  73           The deprecated directories (and their replacements) include:
  74           /proc/acpi/battery/* (/sys/class/power_supply/*)
  75           /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
  76           This option has no effect on /proc/acpi/ directories
  77           and functions, which do not yet exist in /sys
  78           This option, together with the proc directories, will be
  79           deleted in the future.
  80
  81           Say N to delete power /proc/acpi/ directories that have moved to /sys/
  82
  83 config ACPI_REV_OVERRIDE_POSSIBLE
  84         bool "Allow supported ACPI revision to be overriden"
  85         depends on X86
  86         default y
  87         help
  88           The platform firmware on some systems expects Linux to return "5" as
  89           the supported ACPI revision which makes it expose system configuration
  90           information in a special way.
  91
  92           For example, based on what ACPI exports as the supported revision,
  93           Dell XPS 13 (2015) configures its audio device to either work in HDA
  94           mode or in I2S mode, where the former is supposed to be used on Linux
  95           until the latter is fully supported (in the kernel as well as in user
  96           space).
  97
  98           This option enables a DMI-based quirk for the above Dell machine (so
  99           that HDA audio is exposed by the platform firmware to the kernel) and
 100           makes it possible to force the kernel to return "5" as the supported
 101           ACPI revision via the "acpi_rev_override" command line switch.
 102
 103 config ACPI_EC_DEBUGFS
 104         tristate "EC read/write access through /sys/kernel/debug/ec"
 105         default n
 106         help
 107           Say N to disable Embedded Controller /sys/kernel/debug interface
 108
 109           Be aware that using this interface can confuse your Embedded
 110           Controller in a way that a normal reboot is not enough. You then
 111           have to power off your system, and remove the laptop battery for
 112           some seconds.
 113           An Embedded Controller typically is available on laptops and reads
 114           sensor values like battery state and temperature.
 115           The kernel accesses the EC through ACPI parsed code provided by BIOS
 116           tables. This option allows to access the EC directly without ACPI
 117           code being involved.
 118           Thus this option is a debug option that helps to write ACPI drivers
 119           and can be used to identify ACPI code or EC firmware bugs.
 120
 121 config ACPI_AC
 122         tristate "AC Adapter"
 123         depends on X86
 124         select POWER_SUPPLY
 125         default y
 126         help
 127           This driver supports the AC Adapter object, which indicates
 128           whether a system is on AC or not.  If you have a system that can
 129           switch between A/C and battery, say Y.
 130
 131           To compile this driver as a module, choose M here:
 132           the module will be called ac.
 133
 134 config ACPI_BATTERY
 135         tristate "Battery"
 136         depends on X86
 137         select POWER_SUPPLY
 138         default y
 139         help
 140           This driver adds support for battery information through
 141           /proc/acpi/battery. If you have a mobile system with a battery,
 142           say Y.
 143
 144           To compile this driver as a module, choose M here:
 145           the module will be called battery.
 146
 147 config ACPI_BUTTON
 148         tristate "Button"
 149         depends on INPUT
 150         default y
 151         help
 152           This driver handles events on the power, sleep, and lid buttons.
 153           A daemon reads events from input devices or via netlink and
 154           performs user-defined actions such as shutting down the system.
 155           This is necessary for software-controlled poweroff.
 156
 157           To compile this driver as a module, choose M here:
 158           the module will be called button.
 159
 160 config ACPI_VIDEO
 161         tristate "Video"
 162         depends on X86 && BACKLIGHT_CLASS_DEVICE
 163         depends on INPUT
 164         select THERMAL
 165         help
 166           This driver implements the ACPI Extensions For Display Adapters
 167           for integrated graphics devices on motherboard, as specified in
 168           ACPI 2.0 Specification, Appendix B.  This supports basic operations
 169           such as defining the video POST device, retrieving EDID information,
 170           and setting up a video output.
 171
 172           To compile this driver as a module, choose M here:
 173           the module will be called video.
 174
 175 config ACPI_FAN
 176         tristate "Fan"
 177         depends on THERMAL
 178         default y
 179         help
 180           This driver supports ACPI fan devices, allowing user-mode
 181           applications to perform basic fan control (on, off, status).
 182
 183           To compile this driver as a module, choose M here:
 184           the module will be called fan.
 185
 186 config ACPI_DOCK
 187         bool "Dock"
 188         help
 189           This driver supports ACPI-controlled docking stations and removable
 190           drive bays such as the IBM Ultrabay and the Dell Module Bay.
 191
 192 config ACPI_PROCESSOR
 193         tristate "Processor"
 194         select THERMAL
 195         select CPU_IDLE
 196         depends on X86 || IA64
 197         default y
 198         help
 199           This driver installs ACPI as the idle handler for Linux and uses
 200           ACPI C2 and C3 processor states to save power on systems that
 201           support it.  It is required by several flavors of cpufreq
 202           performance-state drivers.
 203
 204           To compile this driver as a module, choose M here:
 205           the module will be called processor.
 206
 207 config ACPI_IPMI
 208         tristate "IPMI"
 209         depends on IPMI_SI
 210         default n
 211         help
 212           This driver enables the ACPI to access the BMC controller. And it
 213           uses the IPMI request/response message to communicate with BMC
 214           controller, which can be found on on the server.
 215
 216           To compile this driver as a module, choose M here:
 217           the module will be called as acpi_ipmi.
 218
 219 config ACPI_HOTPLUG_CPU
 220         bool
 221         depends on ACPI_PROCESSOR && HOTPLUG_CPU
 222         select ACPI_CONTAINER
 223         default y
 224
 225 config ACPI_PROCESSOR_AGGREGATOR
 226         tristate "Processor Aggregator"
 227         depends on ACPI_PROCESSOR
 228         depends on X86
 229         help
 230           ACPI 4.0 defines processor Aggregator, which enables OS to perform
 231           specific processor configuration and control that applies to all
 232           processors in the platform. Currently only logical processor idling
 233           is defined, which is to reduce power consumption. This driver
 234           supports the new device.
 235
 236 config ACPI_THERMAL
 237         tristate "Thermal Zone"
 238         depends on ACPI_PROCESSOR
 239         select THERMAL
 240         default y
 241         help
 242           This driver supports ACPI thermal zones.  Most mobile and
 243           some desktop systems support ACPI thermal zones.  It is HIGHLY
 244           recommended that this option be enabled, as your processor(s)
 245           may be damaged without it.
 246
 247           To compile this driver as a module, choose M here:
 248           the module will be called thermal.
 249
 250 config ACPI_NUMA
 251         bool "NUMA support"
 252         depends on NUMA
 253         depends on (X86 || IA64)
 254         default y if IA64_GENERIC || IA64_SGI_SN2
 255
 256 config ACPI_CUSTOM_DSDT_FILE
 257         string "Custom DSDT Table file to include"
 258         default ""
 259         depends on !STANDALONE
 260         help
 261           This option supports a custom DSDT by linking it into the kernel.
 262           See Documentation/acpi/dsdt-override.txt
 263
 264           Enter the full path name to the file which includes the AmlCode
 265           declaration.
 266
 267           If unsure, don't enter a file name.
 268
 269 config ACPI_CUSTOM_DSDT
 270         bool
 271         default ACPI_CUSTOM_DSDT_FILE != ""
 272
 273 config ACPI_INITRD_TABLE_OVERRIDE
 274         bool "ACPI tables override via initrd"
 275         depends on BLK_DEV_INITRD && X86
 276         default n
 277         help
 278           This option provides functionality to override arbitrary ACPI tables
 279           via initrd. No functional change if no ACPI tables are passed via
 280           initrd, therefore it's safe to say Y.
 281           See Documentation/acpi/initrd_table_override.txt for details
 282
 283 config ACPI_DEBUG
 284         bool "Debug Statements"
 285         default n
 286         help
 287           The ACPI subsystem can produce debug output.  Saying Y enables this
 288           output and increases the kernel size by around 50K.
 289
 290           Use the acpi.debug_layer and acpi.debug_level kernel command-line
 291           parameters documented in Documentation/acpi/debug.txt and
 292           Documentation/kernel-parameters.txt to control the type and
 293           amount of debug output.
 294
 295 config ACPI_PCI_SLOT
 296         bool "PCI slot detection driver"
 297         depends on SYSFS
 298         default n
 299         help
 300           This driver creates entries in /sys/bus/pci/slots/ for all PCI
 301           slots in the system.  This can help correlate PCI bus addresses,
 302           i.e., segment/bus/device/function tuples, with physical slots in
 303           the system.  If you are unsure, say N.
 304
 305 config X86_PM_TIMER
 306         bool "Power Management Timer Support" if EXPERT
 307         depends on X86
 308         default y
 309         help
 310           The Power Management Timer is available on all ACPI-capable,
 311           in most cases even if ACPI is unusable or blacklisted.
 312
 313           This timing source is not affected by power management features
 314           like aggressive processor idling, throttling, frequency and/or
 315           voltage scaling, unlike the commonly used Time Stamp Counter
 316           (TSC) timing source.
 317
 318           You should nearly always say Y here because many modern
 319           systems require this timer.
 320
 321 config ACPI_CONTAINER
 322         bool "Container and Module Devices"
 323         default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU)
 324         help
 325           This driver supports ACPI Container and Module devices (IDs
 326           ACPI0004, PNP0A05, and PNP0A06).
 327
 328           This helps support hotplug of nodes, CPUs, and memory.
 329
 330           To compile this driver as a module, choose M here:
 331           the module will be called container.
 332
 333 config ACPI_HOTPLUG_MEMORY
 334         bool "Memory Hotplug"
 335         depends on MEMORY_HOTPLUG
 336         help
 337           This driver supports ACPI memory hotplug.  The driver
 338           fields notifications on ACPI memory devices (PNP0C80),
 339           which represent memory ranges that may be onlined or
 340           offlined during runtime.
 341
 342           If your hardware and firmware do not support adding or
 343           removing memory devices at runtime, you need not enable
 344           this driver.
 345
 346           To compile this driver as a module, choose M here:
 347           the module will be called acpi_memhotplug.
 348
 349 config ACPI_HOTPLUG_IOAPIC
 350         bool
 351         depends on PCI
 352         depends on X86_IO_APIC
 353         default y
 354
 355 config ACPI_SBS
 356         tristate "Smart Battery System"
 357         depends on X86
 358         select POWER_SUPPLY
 359         help
 360           This driver supports the Smart Battery System, another
 361           type of access to battery information, found on some laptops.
 362
 363           To compile this driver as a module, choose M here:
 364           the modules will be called sbs and sbshc.
 365
 366 config ACPI_HED
 367         tristate "Hardware Error Device"
 368         help
 369           This driver supports the Hardware Error Device (PNP0C33),
 370           which is used to report some hardware errors notified via
 371           SCI, mainly the corrected errors.
 372
 373 config ACPI_CUSTOM_METHOD
 374         tristate "Allow ACPI methods to be inserted/replaced at run time"
 375         depends on DEBUG_FS
 376         default n
 377         help
 378           This debug facility allows ACPI AML methods to be inserted and/or
 379           replaced without rebooting the system. For details refer to:
 380           Documentation/acpi/method-customizing.txt.
 381
 382           NOTE: This option is security sensitive, because it allows arbitrary
 383           kernel memory to be written to by root (uid=0) users, allowing them
 384           to bypass certain security measures (e.g. if root is not allowed to
 385           load additional kernel modules after boot, this feature may be used
 386           to override that restriction).
 387
 388 config ACPI_BGRT
 389         bool "Boottime Graphics Resource Table support"
 390         depends on EFI && X86
 391         help
 392           This driver adds support for exposing the ACPI Boottime Graphics
 393           Resource Table, which allows the operating system to obtain
 394           data from the firmware boot splash. It will appear under
 395           /sys/firmware/acpi/bgrt/ .
 396
 397 config ACPI_REDUCED_HARDWARE_ONLY
 398         bool "Hardware-reduced ACPI support only" if EXPERT
 399         def_bool n
 400         help
 401           This config item changes the way the ACPI code is built.  When this
 402           option is selected, the kernel will use a specialized version of
 403           ACPICA that ONLY supports the ACPI "reduced hardware" mode.  The
 404           resulting kernel will be smaller but it will also be restricted to
 405           running in ACPI reduced hardware mode ONLY.
 406
 407           If you are unsure what to do, do not enable this option.
 408
 409 config ACPI_NFIT
 410         tristate "ACPI NVDIMM Firmware Interface Table (NFIT)"
 411         depends on PHYS_ADDR_T_64BIT
 412         depends on BLK_DEV
 413         select LIBNVDIMM
 414         help
 415           Infrastructure to probe ACPI 6 compliant platforms for
 416           NVDIMMs (NFIT) and register a libnvdimm device tree.  In
 417           addition to storage devices this also enables libnvdimm to pass
 418           ACPI._DSM messages for platform/dimm configuration.
 419
 420           To compile this driver as a module, choose M here:
 421           the module will be called nfit.
 422
 423 config ACPI_NFIT_DEBUG
 424         bool "NFIT DSM debug"
 425         depends on ACPI_NFIT
 426         depends on DYNAMIC_DEBUG
 427         default n
 428         help
 429           Enabling this option causes the nfit driver to dump the
 430           input and output buffers of _DSM operations on the ACPI0012
 431           device and its children.  This can be very verbose, so leave
 432           it disabled unless you are debugging a hardware / firmware
 433           issue.
 434
 435 source "drivers/acpi/apei/Kconfig"
 436
 437 config ACPI_EXTLOG
 438         tristate "Extended Error Log support"
 439         depends on X86_MCE && X86_LOCAL_APIC
 440         select UEFI_CPER
 441         select RAS
 442         default n
 443         help
 444           Certain usages such as Predictive Failure Analysis (PFA) require
 445           more information about the error than what can be described in
 446           processor machine check banks. Most server processors log
 447           additional information about the error in processor uncore
 448           registers. Since the addresses and layout of these registers vary
 449           widely from one processor to another, system software cannot
 450           readily make use of them. To complicate matters further, some of
 451           the additional error information cannot be constructed without
 452           detailed knowledge about platform topology.
 453
 454           Enhanced MCA Logging allows firmware to provide additional error
 455           information to system software, synchronous with MCE or CMCI. This
 456           driver adds support for that functionality with corresponding
 457           tracepoint which carries that information to userspace.
 458
 459 menuconfig PMIC_OPREGION
 460         bool "PMIC (Power Management Integrated Circuit) operation region support"
 461         help
 462           Select this option to enable support for ACPI operation
 463           region of the PMIC chip. The operation region can be used
 464           to control power rails and sensor reading/writing on the
 465           PMIC chip.
 466
 467 if PMIC_OPREGION
 468 config CRC_PMIC_OPREGION
 469         bool "ACPI operation region support for CrystalCove PMIC"
 470         depends on INTEL_SOC_PMIC
 471         help
 472           This config adds ACPI operation region support for CrystalCove PMIC.
 473
 474 config XPOWER_PMIC_OPREGION
 475         bool "ACPI operation region support for XPower AXP288 PMIC"
 476         depends on AXP288_ADC = y
 477         help
 478           This config adds ACPI operation region support for XPower AXP288 PMIC.
 479
 480 endif
 481
 482 endif   # ACPI