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_DEBUGGER
  61         bool "In-kernel debugger (EXPERIMENTAL)"
  62         select ACPI_DEBUG
  63         help
  64           Enable in-kernel debugging facilities: statistics, internal
  65           object dump, single step control method execution.
  66           This is still under development, currently enabling this only
  67           results in the compilation of the ACPICA debugger files.
  68
  69 config ACPI_SLEEP
  70         bool
  71         depends on SUSPEND || HIBERNATION
  72         depends on ACPI_SYSTEM_POWER_STATES_SUPPORT
  73         default y
  74
  75 config ACPI_PROCFS_POWER
  76         bool "Deprecated power /proc/acpi directories"
  77         depends on X86 && PROC_FS
  78         help
  79           For backwards compatibility, this option allows
  80           deprecated power /proc/acpi/ directories to exist, even when
  81           they have been replaced by functions in /sys.
  82           The deprecated directories (and their replacements) include:
  83           /proc/acpi/battery/* (/sys/class/power_supply/*)
  84           /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
  85           This option has no effect on /proc/acpi/ directories
  86           and functions, which do not yet exist in /sys
  87           This option, together with the proc directories, will be
  88           deleted in the future.
  89
  90           Say N to delete power /proc/acpi/ directories that have moved to /sys/
  91
  92 config ACPI_REV_OVERRIDE_POSSIBLE
  93         bool "Allow supported ACPI revision to be overriden"
  94         depends on X86
  95         default y
  96         help
  97           The platform firmware on some systems expects Linux to return "5" as
  98           the supported ACPI revision which makes it expose system configuration
  99           information in a special way.
 100
 101           For example, based on what ACPI exports as the supported revision,
 102           Dell XPS 13 (2015) configures its audio device to either work in HDA
 103           mode or in I2S mode, where the former is supposed to be used on Linux
 104           until the latter is fully supported (in the kernel as well as in user
 105           space).
 106
 107           This option enables a DMI-based quirk for the above Dell machine (so
 108           that HDA audio is exposed by the platform firmware to the kernel) and
 109           makes it possible to force the kernel to return "5" as the supported
 110           ACPI revision via the "acpi_rev_override" command line switch.
 111
 112 config ACPI_EC_DEBUGFS
 113         tristate "EC read/write access through /sys/kernel/debug/ec"
 114         default n
 115         help
 116           Say N to disable Embedded Controller /sys/kernel/debug interface
 117
 118           Be aware that using this interface can confuse your Embedded
 119           Controller in a way that a normal reboot is not enough. You then
 120           have to power off your system, and remove the laptop battery for
 121           some seconds.
 122           An Embedded Controller typically is available on laptops and reads
 123           sensor values like battery state and temperature.
 124           The kernel accesses the EC through ACPI parsed code provided by BIOS
 125           tables. This option allows to access the EC directly without ACPI
 126           code being involved.
 127           Thus this option is a debug option that helps to write ACPI drivers
 128           and can be used to identify ACPI code or EC firmware bugs.
 129
 130 config ACPI_AC
 131         tristate "AC Adapter"
 132         depends on X86
 133         select POWER_SUPPLY
 134         default y
 135         help
 136           This driver supports the AC Adapter object, which indicates
 137           whether a system is on AC or not.  If you have a system that can
 138           switch between A/C and battery, say Y.
 139
 140           To compile this driver as a module, choose M here:
 141           the module will be called ac.
 142
 143 config ACPI_BATTERY
 144         tristate "Battery"
 145         depends on X86
 146         select POWER_SUPPLY
 147         default y
 148         help
 149           This driver adds support for battery information through
 150           /proc/acpi/battery. If you have a mobile system with a battery,
 151           say Y.
 152
 153           To compile this driver as a module, choose M here:
 154           the module will be called battery.
 155
 156 config ACPI_BUTTON
 157         tristate "Button"
 158         depends on INPUT
 159         default y
 160         help
 161           This driver handles events on the power, sleep, and lid buttons.
 162           A daemon reads events from input devices or via netlink and
 163           performs user-defined actions such as shutting down the system.
 164           This is necessary for software-controlled poweroff.
 165
 166           To compile this driver as a module, choose M here:
 167           the module will be called button.
 168
 169 config ACPI_VIDEO
 170         tristate "Video"
 171         depends on X86 && BACKLIGHT_CLASS_DEVICE
 172         depends on INPUT
 173         select THERMAL
 174         help
 175           This driver implements the ACPI Extensions For Display Adapters
 176           for integrated graphics devices on motherboard, as specified in
 177           ACPI 2.0 Specification, Appendix B.  This supports basic operations
 178           such as defining the video POST device, retrieving EDID information,
 179           and setting up a video output.
 180
 181           To compile this driver as a module, choose M here:
 182           the module will be called video.
 183
 184 config ACPI_FAN
 185         tristate "Fan"
 186         depends on THERMAL
 187         default y
 188         help
 189           This driver supports ACPI fan devices, allowing user-mode
 190           applications to perform basic fan control (on, off, status).
 191
 192           To compile this driver as a module, choose M here:
 193           the module will be called fan.
 194
 195 config ACPI_DOCK
 196         bool "Dock"
 197         help
 198           This driver supports ACPI-controlled docking stations and removable
 199           drive bays such as the IBM Ultrabay and the Dell Module Bay.
 200
 201 config ACPI_CPU_FREQ_PSS
 202         bool
 203         select THERMAL
 204
 205 config ACPI_PROCESSOR_IDLE
 206         bool
 207         select CPU_IDLE
 208
 209 config ACPI_CPPC_LIB
 210         bool
 211         depends on ACPI_PROCESSOR
 212         depends on !ACPI_CPU_FREQ_PSS
 213         select MAILBOX
 214         select PCC
 215         help
 216           If this option is enabled, this file implements common functionality
 217           to parse CPPC tables as described in the ACPI 5.1+ spec. The
 218           routines implemented are meant to be used by other
 219           drivers to control CPU performance using CPPC semantics.
 220           If your platform does not support CPPC in firmware,
 221           leave this option disabled.
 222
 223 config ACPI_PROCESSOR
 224         tristate "Processor"
 225         depends on X86 || IA64 || ARM64
 226         select ACPI_PROCESSOR_IDLE if X86 || IA64
 227         select ACPI_CPU_FREQ_PSS if X86 || IA64
 228         default y
 229         help
 230           This driver adds support for the ACPI Processor package. It is required
 231           by several flavors of cpufreq performance-state, thermal, throttling and
 232           idle drivers.
 233
 234           To compile this driver as a module, choose M here:
 235           the module will be called processor.
 236
 237 config ACPI_IPMI
 238         tristate "IPMI"
 239         depends on IPMI_SI
 240         default n
 241         help
 242           This driver enables the ACPI to access the BMC controller. And it
 243           uses the IPMI request/response message to communicate with BMC
 244           controller, which can be found on on the server.
 245
 246           To compile this driver as a module, choose M here:
 247           the module will be called as acpi_ipmi.
 248
 249 config ACPI_HOTPLUG_CPU
 250         bool
 251         depends on ACPI_PROCESSOR && HOTPLUG_CPU
 252         select ACPI_CONTAINER
 253         default y
 254
 255 config ACPI_PROCESSOR_AGGREGATOR
 256         tristate "Processor Aggregator"
 257         depends on ACPI_PROCESSOR
 258         depends on X86
 259         help
 260           ACPI 4.0 defines processor Aggregator, which enables OS to perform
 261           specific processor configuration and control that applies to all
 262           processors in the platform. Currently only logical processor idling
 263           is defined, which is to reduce power consumption. This driver
 264           supports the new device.
 265
 266 config ACPI_THERMAL
 267         tristate "Thermal Zone"
 268         depends on ACPI_PROCESSOR
 269         select THERMAL
 270         default y
 271         help
 272           This driver supports ACPI thermal zones.  Most mobile and
 273           some desktop systems support ACPI thermal zones.  It is HIGHLY
 274           recommended that this option be enabled, as your processor(s)
 275           may be damaged without it.
 276
 277           To compile this driver as a module, choose M here:
 278           the module will be called thermal.
 279
 280 config ACPI_NUMA
 281         bool "NUMA support"
 282         depends on NUMA
 283         depends on (X86 || IA64)
 284         default y if IA64_GENERIC || IA64_SGI_SN2
 285
 286 config ACPI_CUSTOM_DSDT_FILE
 287         string "Custom DSDT Table file to include"
 288         default ""
 289         depends on !STANDALONE
 290         help
 291           This option supports a custom DSDT by linking it into the kernel.
 292           See Documentation/acpi/dsdt-override.txt
 293
 294           Enter the full path name to the file which includes the AmlCode
 295           declaration.
 296
 297           If unsure, don't enter a file name.
 298
 299 config ACPI_CUSTOM_DSDT
 300         bool
 301         default ACPI_CUSTOM_DSDT_FILE != ""
 302
 303 config ACPI_INITRD_TABLE_OVERRIDE
 304         bool "ACPI tables override via initrd"
 305         depends on BLK_DEV_INITRD && X86
 306         default n
 307         help
 308           This option provides functionality to override arbitrary ACPI tables
 309           via initrd. No functional change if no ACPI tables are passed via
 310           initrd, therefore it's safe to say Y.
 311           See Documentation/acpi/initrd_table_override.txt for details
 312
 313 config ACPI_DEBUG
 314         bool "Debug Statements"
 315         default n
 316         help
 317           The ACPI subsystem can produce debug output.  Saying Y enables this
 318           output and increases the kernel size by around 50K.
 319
 320           Use the acpi.debug_layer and acpi.debug_level kernel command-line
 321           parameters documented in Documentation/acpi/debug.txt and
 322           Documentation/kernel-parameters.txt to control the type and
 323           amount of debug output.
 324
 325 config ACPI_PCI_SLOT
 326         bool "PCI slot detection driver"
 327         depends on SYSFS
 328         default n
 329         help
 330           This driver creates entries in /sys/bus/pci/slots/ for all PCI
 331           slots in the system.  This can help correlate PCI bus addresses,
 332           i.e., segment/bus/device/function tuples, with physical slots in
 333           the system.  If you are unsure, say N.
 334
 335 config X86_PM_TIMER
 336         bool "Power Management Timer Support" if EXPERT
 337         depends on X86
 338         default y
 339         help
 340           The Power Management Timer is available on all ACPI-capable,
 341           in most cases even if ACPI is unusable or blacklisted.
 342
 343           This timing source is not affected by power management features
 344           like aggressive processor idling, throttling, frequency and/or
 345           voltage scaling, unlike the commonly used Time Stamp Counter
 346           (TSC) timing source.
 347
 348           You should nearly always say Y here because many modern
 349           systems require this timer.
 350
 351 config ACPI_CONTAINER
 352         bool "Container and Module Devices"
 353         default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU)
 354         help
 355           This driver supports ACPI Container and Module devices (IDs
 356           ACPI0004, PNP0A05, and PNP0A06).
 357
 358           This helps support hotplug of nodes, CPUs, and memory.
 359
 360           To compile this driver as a module, choose M here:
 361           the module will be called container.
 362
 363 config ACPI_HOTPLUG_MEMORY
 364         bool "Memory Hotplug"
 365         depends on MEMORY_HOTPLUG
 366         help
 367           This driver supports ACPI memory hotplug.  The driver
 368           fields notifications on ACPI memory devices (PNP0C80),
 369           which represent memory ranges that may be onlined or
 370           offlined during runtime.
 371
 372           If your hardware and firmware do not support adding or
 373           removing memory devices at runtime, you need not enable
 374           this driver.
 375
 376           To compile this driver as a module, choose M here:
 377           the module will be called acpi_memhotplug.
 378
 379 config ACPI_HOTPLUG_IOAPIC
 380         bool
 381         depends on PCI
 382         depends on X86_IO_APIC
 383         default y
 384
 385 config ACPI_SBS
 386         tristate "Smart Battery System"
 387         depends on X86
 388         select POWER_SUPPLY
 389         help
 390           This driver supports the Smart Battery System, another
 391           type of access to battery information, found on some laptops.
 392
 393           To compile this driver as a module, choose M here:
 394           the modules will be called sbs and sbshc.
 395
 396 config ACPI_HED
 397         tristate "Hardware Error Device"
 398         help
 399           This driver supports the Hardware Error Device (PNP0C33),
 400           which is used to report some hardware errors notified via
 401           SCI, mainly the corrected errors.
 402
 403 config ACPI_CUSTOM_METHOD
 404         tristate "Allow ACPI methods to be inserted/replaced at run time"
 405         depends on DEBUG_FS
 406         default n
 407         help
 408           This debug facility allows ACPI AML methods to be inserted and/or
 409           replaced without rebooting the system. For details refer to:
 410           Documentation/acpi/method-customizing.txt.
 411
 412           NOTE: This option is security sensitive, because it allows arbitrary
 413           kernel memory to be written to by root (uid=0) users, allowing them
 414           to bypass certain security measures (e.g. if root is not allowed to
 415           load additional kernel modules after boot, this feature may be used
 416           to override that restriction).
 417
 418 config ACPI_BGRT
 419         bool "Boottime Graphics Resource Table support"
 420         depends on EFI && X86
 421         help
 422           This driver adds support for exposing the ACPI Boottime Graphics
 423           Resource Table, which allows the operating system to obtain
 424           data from the firmware boot splash. It will appear under
 425           /sys/firmware/acpi/bgrt/ .
 426
 427 config ACPI_REDUCED_HARDWARE_ONLY
 428         bool "Hardware-reduced ACPI support only" if EXPERT
 429         def_bool n
 430         help
 431           This config item changes the way the ACPI code is built.  When this
 432           option is selected, the kernel will use a specialized version of
 433           ACPICA that ONLY supports the ACPI "reduced hardware" mode.  The
 434           resulting kernel will be smaller but it will also be restricted to
 435           running in ACPI reduced hardware mode ONLY.
 436
 437           If you are unsure what to do, do not enable this option.
 438
 439 config ACPI_NFIT
 440         tristate "ACPI NVDIMM Firmware Interface Table (NFIT)"
 441         depends on PHYS_ADDR_T_64BIT
 442         depends on BLK_DEV
 443         depends on ARCH_HAS_MMIO_FLUSH
 444         select LIBNVDIMM
 445         help
 446           Infrastructure to probe ACPI 6 compliant platforms for
 447           NVDIMMs (NFIT) and register a libnvdimm device tree.  In
 448           addition to storage devices this also enables libnvdimm to pass
 449           ACPI._DSM messages for platform/dimm configuration.
 450
 451           To compile this driver as a module, choose M here:
 452           the module will be called nfit.
 453
 454 config ACPI_NFIT_DEBUG
 455         bool "NFIT DSM debug"
 456         depends on ACPI_NFIT
 457         depends on DYNAMIC_DEBUG
 458         default n
 459         help
 460           Enabling this option causes the nfit driver to dump the
 461           input and output buffers of _DSM operations on the ACPI0012
 462           device and its children.  This can be very verbose, so leave
 463           it disabled unless you are debugging a hardware / firmware
 464           issue.
 465
 466 source "drivers/acpi/apei/Kconfig"
 467
 468 config ACPI_EXTLOG
 469         tristate "Extended Error Log support"
 470         depends on X86_MCE && X86_LOCAL_APIC
 471         select UEFI_CPER
 472         select RAS
 473         default n
 474         help
 475           Certain usages such as Predictive Failure Analysis (PFA) require
 476           more information about the error than what can be described in
 477           processor machine check banks. Most server processors log
 478           additional information about the error in processor uncore
 479           registers. Since the addresses and layout of these registers vary
 480           widely from one processor to another, system software cannot
 481           readily make use of them. To complicate matters further, some of
 482           the additional error information cannot be constructed without
 483           detailed knowledge about platform topology.
 484
 485           Enhanced MCA Logging allows firmware to provide additional error
 486           information to system software, synchronous with MCE or CMCI. This
 487           driver adds support for that functionality with corresponding
 488           tracepoint which carries that information to userspace.
 489
 490 menuconfig PMIC_OPREGION
 491         bool "PMIC (Power Management Integrated Circuit) operation region support"
 492         help
 493           Select this option to enable support for ACPI operation
 494           region of the PMIC chip. The operation region can be used
 495           to control power rails and sensor reading/writing on the
 496           PMIC chip.
 497
 498 if PMIC_OPREGION
 499 config CRC_PMIC_OPREGION
 500         bool "ACPI operation region support for CrystalCove PMIC"
 501         depends on INTEL_SOC_PMIC
 502         help
 503           This config adds ACPI operation region support for CrystalCove PMIC.
 504
 505 config XPOWER_PMIC_OPREGION
 506         bool "ACPI operation region support for XPower AXP288 PMIC"
 507         depends on AXP288_ADC = y
 508         help
 509           This config adds ACPI operation region support for XPower AXP288 PMIC.
 510
 511 endif
 512
 513 endif   # ACPI