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 "AML debugger interface (EXPERIMENTAL)"
  62         select ACPI_DEBUG
  63         help
  64           Enable in-kernel debugging of AML 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_PROCESSOR
 210         tristate "Processor"
 211         depends on X86 || IA64
 212         select ACPI_PROCESSOR_IDLE
 213         select ACPI_CPU_FREQ_PSS
 214         default y
 215         help
 216           This driver adds support for the ACPI Processor package. It is required
 217           by several flavors of cpufreq performance-state, thermal, throttling and
 218           idle drivers.
 219
 220           To compile this driver as a module, choose M here:
 221           the module will be called processor.
 222
 223 config ACPI_IPMI
 224         tristate "IPMI"
 225         depends on IPMI_SI
 226         default n
 227         help
 228           This driver enables the ACPI to access the BMC controller. And it
 229           uses the IPMI request/response message to communicate with BMC
 230           controller, which can be found on on the server.
 231
 232           To compile this driver as a module, choose M here:
 233           the module will be called as acpi_ipmi.
 234
 235 config ACPI_HOTPLUG_CPU
 236         bool
 237         depends on ACPI_PROCESSOR && HOTPLUG_CPU
 238         select ACPI_CONTAINER
 239         default y
 240
 241 config ACPI_PROCESSOR_AGGREGATOR
 242         tristate "Processor Aggregator"
 243         depends on ACPI_PROCESSOR
 244         depends on X86
 245         help
 246           ACPI 4.0 defines processor Aggregator, which enables OS to perform
 247           specific processor configuration and control that applies to all
 248           processors in the platform. Currently only logical processor idling
 249           is defined, which is to reduce power consumption. This driver
 250           supports the new device.
 251
 252 config ACPI_THERMAL
 253         tristate "Thermal Zone"
 254         depends on ACPI_PROCESSOR
 255         select THERMAL
 256         default y
 257         help
 258           This driver supports ACPI thermal zones.  Most mobile and
 259           some desktop systems support ACPI thermal zones.  It is HIGHLY
 260           recommended that this option be enabled, as your processor(s)
 261           may be damaged without it.
 262
 263           To compile this driver as a module, choose M here:
 264           the module will be called thermal.
 265
 266 config ACPI_NUMA
 267         bool "NUMA support"
 268         depends on NUMA
 269         depends on (X86 || IA64)
 270         default y if IA64_GENERIC || IA64_SGI_SN2
 271
 272 config ACPI_CUSTOM_DSDT_FILE
 273         string "Custom DSDT Table file to include"
 274         default ""
 275         depends on !STANDALONE
 276         help
 277           This option supports a custom DSDT by linking it into the kernel.
 278           See Documentation/acpi/dsdt-override.txt
 279
 280           Enter the full path name to the file which includes the AmlCode
 281           declaration.
 282
 283           If unsure, don't enter a file name.
 284
 285 config ACPI_CUSTOM_DSDT
 286         bool
 287         default ACPI_CUSTOM_DSDT_FILE != ""
 288
 289 config ACPI_INITRD_TABLE_OVERRIDE
 290         bool "ACPI tables override via initrd"
 291         depends on BLK_DEV_INITRD && X86
 292         default n
 293         help
 294           This option provides functionality to override arbitrary ACPI tables
 295           via initrd. No functional change if no ACPI tables are passed via
 296           initrd, therefore it's safe to say Y.
 297           See Documentation/acpi/initrd_table_override.txt for details
 298
 299 config ACPI_DEBUG
 300         bool "Debug Statements"
 301         default n
 302         help
 303           The ACPI subsystem can produce debug output.  Saying Y enables this
 304           output and increases the kernel size by around 50K.
 305
 306           Use the acpi.debug_layer and acpi.debug_level kernel command-line
 307           parameters documented in Documentation/acpi/debug.txt and
 308           Documentation/kernel-parameters.txt to control the type and
 309           amount of debug output.
 310
 311 config ACPI_PCI_SLOT
 312         bool "PCI slot detection driver"
 313         depends on SYSFS
 314         default n
 315         help
 316           This driver creates entries in /sys/bus/pci/slots/ for all PCI
 317           slots in the system.  This can help correlate PCI bus addresses,
 318           i.e., segment/bus/device/function tuples, with physical slots in
 319           the system.  If you are unsure, say N.
 320
 321 config X86_PM_TIMER
 322         bool "Power Management Timer Support" if EXPERT
 323         depends on X86
 324         default y
 325         help
 326           The Power Management Timer is available on all ACPI-capable,
 327           in most cases even if ACPI is unusable or blacklisted.
 328
 329           This timing source is not affected by power management features
 330           like aggressive processor idling, throttling, frequency and/or
 331           voltage scaling, unlike the commonly used Time Stamp Counter
 332           (TSC) timing source.
 333
 334           You should nearly always say Y here because many modern
 335           systems require this timer.
 336
 337 config ACPI_CONTAINER
 338         bool "Container and Module Devices"
 339         default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU)
 340         help
 341           This driver supports ACPI Container and Module devices (IDs
 342           ACPI0004, PNP0A05, and PNP0A06).
 343
 344           This helps support hotplug of nodes, CPUs, and memory.
 345
 346           To compile this driver as a module, choose M here:
 347           the module will be called container.
 348
 349 config ACPI_HOTPLUG_MEMORY
 350         bool "Memory Hotplug"
 351         depends on MEMORY_HOTPLUG
 352         help
 353           This driver supports ACPI memory hotplug.  The driver
 354           fields notifications on ACPI memory devices (PNP0C80),
 355           which represent memory ranges that may be onlined or
 356           offlined during runtime.
 357
 358           If your hardware and firmware do not support adding or
 359           removing memory devices at runtime, you need not enable
 360           this driver.
 361
 362           To compile this driver as a module, choose M here:
 363           the module will be called acpi_memhotplug.
 364
 365 config ACPI_HOTPLUG_IOAPIC
 366         bool
 367         depends on PCI
 368         depends on X86_IO_APIC
 369         default y
 370
 371 config ACPI_SBS
 372         tristate "Smart Battery System"
 373         depends on X86
 374         select POWER_SUPPLY
 375         help
 376           This driver supports the Smart Battery System, another
 377           type of access to battery information, found on some laptops.
 378
 379           To compile this driver as a module, choose M here:
 380           the modules will be called sbs and sbshc.
 381
 382 config ACPI_HED
 383         tristate "Hardware Error Device"
 384         help
 385           This driver supports the Hardware Error Device (PNP0C33),
 386           which is used to report some hardware errors notified via
 387           SCI, mainly the corrected errors.
 388
 389 config ACPI_CUSTOM_METHOD
 390         tristate "Allow ACPI methods to be inserted/replaced at run time"
 391         depends on DEBUG_FS
 392         default n
 393         help
 394           This debug facility allows ACPI AML methods to be inserted and/or
 395           replaced without rebooting the system. For details refer to:
 396           Documentation/acpi/method-customizing.txt.
 397
 398           NOTE: This option is security sensitive, because it allows arbitrary
 399           kernel memory to be written to by root (uid=0) users, allowing them
 400           to bypass certain security measures (e.g. if root is not allowed to
 401           load additional kernel modules after boot, this feature may be used
 402           to override that restriction).
 403
 404 config ACPI_BGRT
 405         bool "Boottime Graphics Resource Table support"
 406         depends on EFI && X86
 407         help
 408           This driver adds support for exposing the ACPI Boottime Graphics
 409           Resource Table, which allows the operating system to obtain
 410           data from the firmware boot splash. It will appear under
 411           /sys/firmware/acpi/bgrt/ .
 412
 413 config ACPI_REDUCED_HARDWARE_ONLY
 414         bool "Hardware-reduced ACPI support only" if EXPERT
 415         def_bool n
 416         help
 417           This config item changes the way the ACPI code is built.  When this
 418           option is selected, the kernel will use a specialized version of
 419           ACPICA that ONLY supports the ACPI "reduced hardware" mode.  The
 420           resulting kernel will be smaller but it will also be restricted to
 421           running in ACPI reduced hardware mode ONLY.
 422
 423           If you are unsure what to do, do not enable this option.
 424
 425 config ACPI_NFIT
 426         tristate "ACPI NVDIMM Firmware Interface Table (NFIT)"
 427         depends on PHYS_ADDR_T_64BIT
 428         depends on BLK_DEV
 429         depends on ARCH_HAS_MMIO_FLUSH
 430         select LIBNVDIMM
 431         help
 432           Infrastructure to probe ACPI 6 compliant platforms for
 433           NVDIMMs (NFIT) and register a libnvdimm device tree.  In
 434           addition to storage devices this also enables libnvdimm to pass
 435           ACPI._DSM messages for platform/dimm configuration.
 436
 437           To compile this driver as a module, choose M here:
 438           the module will be called nfit.
 439
 440 config ACPI_NFIT_DEBUG
 441         bool "NFIT DSM debug"
 442         depends on ACPI_NFIT
 443         depends on DYNAMIC_DEBUG
 444         default n
 445         help
 446           Enabling this option causes the nfit driver to dump the
 447           input and output buffers of _DSM operations on the ACPI0012
 448           device and its children.  This can be very verbose, so leave
 449           it disabled unless you are debugging a hardware / firmware
 450           issue.
 451
 452 source "drivers/acpi/apei/Kconfig"
 453
 454 config ACPI_EXTLOG
 455         tristate "Extended Error Log support"
 456         depends on X86_MCE && X86_LOCAL_APIC
 457         select UEFI_CPER
 458         select RAS
 459         default n
 460         help
 461           Certain usages such as Predictive Failure Analysis (PFA) require
 462           more information about the error than what can be described in
 463           processor machine check banks. Most server processors log
 464           additional information about the error in processor uncore
 465           registers. Since the addresses and layout of these registers vary
 466           widely from one processor to another, system software cannot
 467           readily make use of them. To complicate matters further, some of
 468           the additional error information cannot be constructed without
 469           detailed knowledge about platform topology.
 470
 471           Enhanced MCA Logging allows firmware to provide additional error
 472           information to system software, synchronous with MCE or CMCI. This
 473           driver adds support for that functionality with corresponding
 474           tracepoint which carries that information to userspace.
 475
 476 menuconfig PMIC_OPREGION
 477         bool "PMIC (Power Management Integrated Circuit) operation region support"
 478         help
 479           Select this option to enable support for ACPI operation
 480           region of the PMIC chip. The operation region can be used
 481           to control power rails and sensor reading/writing on the
 482           PMIC chip.
 483
 484 if PMIC_OPREGION
 485 config CRC_PMIC_OPREGION
 486         bool "ACPI operation region support for CrystalCove PMIC"
 487         depends on INTEL_SOC_PMIC
 488         help
 489           This config adds ACPI operation region support for CrystalCove PMIC.
 490
 491 config XPOWER_PMIC_OPREGION
 492         bool "ACPI operation region support for XPower AXP288 PMIC"
 493         depends on AXP288_ADC = y
 494         help
 495           This config adds ACPI operation region support for XPower AXP288 PMIC.
 496
 497 endif
 498
 499 endif   # ACPI