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_SLEEP
  58         bool
  59         depends on SUSPEND || HIBERNATION
  60         depends on ACPI_SYSTEM_POWER_STATES_SUPPORT
  61         default y
  62
  63 config ACPI_PROCFS_POWER
  64         bool "Deprecated power /proc/acpi directories"
  65         depends on PROC_FS
  66         help
  67           For backwards compatibility, this option allows
  68           deprecated power /proc/acpi/ directories to exist, even when
  69           they have been replaced by functions in /sys.
  70           The deprecated directories (and their replacements) include:
  71           /proc/acpi/battery/* (/sys/class/power_supply/*)
  72           /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
  73           This option has no effect on /proc/acpi/ directories
  74           and functions, which do not yet exist in /sys
  75           This option, together with the proc directories, will be
  76           deleted in the future.
  77
  78           Say N to delete power /proc/acpi/ directories that have moved to /sys/
  79
  80 config ACPI_EC_DEBUGFS
  81         tristate "EC read/write access through /sys/kernel/debug/ec"
  82         default n
  83         help
  84           Say N to disable Embedded Controller /sys/kernel/debug interface
  85
  86           Be aware that using this interface can confuse your Embedded
  87           Controller in a way that a normal reboot is not enough. You then
  88           have to power off your system, and remove the laptop battery for
  89           some seconds.
  90           An Embedded Controller typically is available on laptops and reads
  91           sensor values like battery state and temperature.
  92           The kernel accesses the EC through ACPI parsed code provided by BIOS
  93           tables. This option allows to access the EC directly without ACPI
  94           code being involved.
  95           Thus this option is a debug option that helps to write ACPI drivers
  96           and can be used to identify ACPI code or EC firmware bugs.
  97
  98 config ACPI_AC
  99         tristate "AC Adapter"
 100         depends on X86
 101         select POWER_SUPPLY
 102         default y
 103         help
 104           This driver supports the AC Adapter object, which indicates
 105           whether a system is on AC or not.  If you have a system that can
 106           switch between A/C and battery, say Y.
 107
 108           To compile this driver as a module, choose M here:
 109           the module will be called ac.
 110
 111 config ACPI_BATTERY
 112         tristate "Battery"
 113         depends on X86
 114         select POWER_SUPPLY
 115         default y
 116         help
 117           This driver adds support for battery information through
 118           /proc/acpi/battery. If you have a mobile system with a battery,
 119           say Y.
 120
 121           To compile this driver as a module, choose M here:
 122           the module will be called battery.
 123
 124 config ACPI_BUTTON
 125         tristate "Button"
 126         depends on INPUT
 127         default y
 128         help
 129           This driver handles events on the power, sleep, and lid buttons.
 130           A daemon reads events from input devices or via netlink and
 131           performs user-defined actions such as shutting down the system.
 132           This is necessary for software-controlled poweroff.
 133
 134           To compile this driver as a module, choose M here:
 135           the module will be called button.
 136
 137 config ACPI_VIDEO
 138         tristate "Video"
 139         depends on X86 && BACKLIGHT_CLASS_DEVICE
 140         depends on INPUT
 141         select THERMAL
 142         help
 143           This driver implements the ACPI Extensions For Display Adapters
 144           for integrated graphics devices on motherboard, as specified in
 145           ACPI 2.0 Specification, Appendix B.  This supports basic operations
 146           such as defining the video POST device, retrieving EDID information,
 147           and setting up a video output.
 148
 149           To compile this driver as a module, choose M here:
 150           the module will be called video.
 151
 152 config ACPI_FAN
 153         tristate "Fan"
 154         depends on THERMAL
 155         default y
 156         help
 157           This driver supports ACPI fan devices, allowing user-mode
 158           applications to perform basic fan control (on, off, status).
 159
 160           To compile this driver as a module, choose M here:
 161           the module will be called fan.
 162
 163 config ACPI_DOCK
 164         bool "Dock"
 165         help
 166           This driver supports ACPI-controlled docking stations and removable
 167           drive bays such as the IBM Ultrabay and the Dell Module Bay.
 168
 169 config ACPI_PROCESSOR
 170         tristate "Processor"
 171         select THERMAL
 172         select CPU_IDLE
 173         depends on X86 || IA64
 174         default y
 175         help
 176           This driver installs ACPI as the idle handler for Linux and uses
 177           ACPI C2 and C3 processor states to save power on systems that
 178           support it.  It is required by several flavors of cpufreq
 179           performance-state drivers.
 180
 181           To compile this driver as a module, choose M here:
 182           the module will be called processor.
 183
 184 config ACPI_IPMI
 185         tristate "IPMI"
 186         depends on IPMI_SI
 187         default n
 188         help
 189           This driver enables the ACPI to access the BMC controller. And it
 190           uses the IPMI request/response message to communicate with BMC
 191           controller, which can be found on on the server.
 192
 193           To compile this driver as a module, choose M here:
 194           the module will be called as acpi_ipmi.
 195
 196 config ACPI_HOTPLUG_CPU
 197         bool
 198         depends on ACPI_PROCESSOR && HOTPLUG_CPU
 199         select ACPI_CONTAINER
 200         default y
 201
 202 config ACPI_PROCESSOR_AGGREGATOR
 203         tristate "Processor Aggregator"
 204         depends on ACPI_PROCESSOR
 205         depends on X86
 206         help
 207           ACPI 4.0 defines processor Aggregator, which enables OS to perform
 208           specific processor configuration and control that applies to all
 209           processors in the platform. Currently only logical processor idling
 210           is defined, which is to reduce power consumption. This driver
 211           supports the new device.
 212
 213 config ACPI_THERMAL
 214         tristate "Thermal Zone"
 215         depends on ACPI_PROCESSOR
 216         select THERMAL
 217         default y
 218         help
 219           This driver supports ACPI thermal zones.  Most mobile and
 220           some desktop systems support ACPI thermal zones.  It is HIGHLY
 221           recommended that this option be enabled, as your processor(s)
 222           may be damaged without it.
 223
 224           To compile this driver as a module, choose M here:
 225           the module will be called thermal.
 226
 227 config ACPI_NUMA
 228         bool "NUMA support"
 229         depends on NUMA
 230         depends on (X86 || IA64)
 231         default y if IA64_GENERIC || IA64_SGI_SN2
 232
 233 config ACPI_CUSTOM_DSDT_FILE
 234         string "Custom DSDT Table file to include"
 235         default ""
 236         depends on !STANDALONE
 237         help
 238           This option supports a custom DSDT by linking it into the kernel.
 239           See Documentation/acpi/dsdt-override.txt
 240
 241           Enter the full path name to the file which includes the AmlCode
 242           declaration.
 243
 244           If unsure, don't enter a file name.
 245
 246 config ACPI_CUSTOM_DSDT
 247         bool
 248         default ACPI_CUSTOM_DSDT_FILE != ""
 249
 250 config ACPI_INITRD_TABLE_OVERRIDE
 251         bool "ACPI tables override via initrd"
 252         depends on BLK_DEV_INITRD && X86
 253         default n
 254         help
 255           This option provides functionality to override arbitrary ACPI tables
 256           via initrd. No functional change if no ACPI tables are passed via
 257           initrd, therefore it's safe to say Y.
 258           See Documentation/acpi/initrd_table_override.txt for details
 259
 260 config ACPI_DEBUG
 261         bool "Debug Statements"
 262         default n
 263         help
 264           The ACPI subsystem can produce debug output.  Saying Y enables this
 265           output and increases the kernel size by around 50K.
 266
 267           Use the acpi.debug_layer and acpi.debug_level kernel command-line
 268           parameters documented in Documentation/acpi/debug.txt and
 269           Documentation/kernel-parameters.txt to control the type and
 270           amount of debug output.
 271
 272 config ACPI_PCI_SLOT
 273         bool "PCI slot detection driver"
 274         depends on SYSFS
 275         default n
 276         help
 277           This driver creates entries in /sys/bus/pci/slots/ for all PCI
 278           slots in the system.  This can help correlate PCI bus addresses,
 279           i.e., segment/bus/device/function tuples, with physical slots in
 280           the system.  If you are unsure, say N.
 281
 282 config X86_PM_TIMER
 283         bool "Power Management Timer Support" if EXPERT
 284         depends on X86
 285         default y
 286         help
 287           The Power Management Timer is available on all ACPI-capable,
 288           in most cases even if ACPI is unusable or blacklisted.
 289
 290           This timing source is not affected by power management features
 291           like aggressive processor idling, throttling, frequency and/or
 292           voltage scaling, unlike the commonly used Time Stamp Counter
 293           (TSC) timing source.
 294
 295           You should nearly always say Y here because many modern
 296           systems require this timer.
 297
 298 config ACPI_CONTAINER
 299         bool "Container and Module Devices"
 300         default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU)
 301         help
 302           This driver supports ACPI Container and Module devices (IDs
 303           ACPI0004, PNP0A05, and PNP0A06).
 304
 305           This helps support hotplug of nodes, CPUs, and memory.
 306
 307           To compile this driver as a module, choose M here:
 308           the module will be called container.
 309
 310 config ACPI_HOTPLUG_MEMORY
 311         bool "Memory Hotplug"
 312         depends on MEMORY_HOTPLUG
 313         help
 314           This driver supports ACPI memory hotplug.  The driver
 315           fields notifications on ACPI memory devices (PNP0C80),
 316           which represent memory ranges that may be onlined or
 317           offlined during runtime.
 318
 319           If your hardware and firmware do not support adding or
 320           removing memory devices at runtime, you need not enable
 321           this driver.
 322
 323           To compile this driver as a module, choose M here:
 324           the module will be called acpi_memhotplug.
 325
 326 config ACPI_HOTPLUG_IOAPIC
 327         bool
 328         depends on PCI
 329         depends on X86_IO_APIC
 330         default y
 331
 332 config ACPI_SBS
 333         tristate "Smart Battery System"
 334         depends on X86
 335         select POWER_SUPPLY
 336         help
 337           This driver supports the Smart Battery System, another
 338           type of access to battery information, found on some laptops.
 339
 340           To compile this driver as a module, choose M here:
 341           the modules will be called sbs and sbshc.
 342
 343 config ACPI_HED
 344         tristate "Hardware Error Device"
 345         help
 346           This driver supports the Hardware Error Device (PNP0C33),
 347           which is used to report some hardware errors notified via
 348           SCI, mainly the corrected errors.
 349
 350 config ACPI_CUSTOM_METHOD
 351         tristate "Allow ACPI methods to be inserted/replaced at run time"
 352         depends on DEBUG_FS
 353         default n
 354         help
 355           This debug facility allows ACPI AML methods to be inserted and/or
 356           replaced without rebooting the system. For details refer to:
 357           Documentation/acpi/method-customizing.txt.
 358
 359           NOTE: This option is security sensitive, because it allows arbitrary
 360           kernel memory to be written to by root (uid=0) users, allowing them
 361           to bypass certain security measures (e.g. if root is not allowed to
 362           load additional kernel modules after boot, this feature may be used
 363           to override that restriction).
 364
 365 config ACPI_BGRT
 366         bool "Boottime Graphics Resource Table support"
 367         depends on EFI && X86
 368         help
 369           This driver adds support for exposing the ACPI Boottime Graphics
 370           Resource Table, which allows the operating system to obtain
 371           data from the firmware boot splash. It will appear under
 372           /sys/firmware/acpi/bgrt/ .
 373
 374 config ACPI_REDUCED_HARDWARE_ONLY
 375         bool "Hardware-reduced ACPI support only" if EXPERT
 376         def_bool n
 377         help
 378           This config item changes the way the ACPI code is built.  When this
 379           option is selected, the kernel will use a specialized version of
 380           ACPICA that ONLY supports the ACPI "reduced hardware" mode.  The
 381           resulting kernel will be smaller but it will also be restricted to
 382           running in ACPI reduced hardware mode ONLY.
 383
 384           If you are unsure what to do, do not enable this option.
 385
 386 source "drivers/acpi/apei/Kconfig"
 387
 388 config ACPI_EXTLOG
 389         tristate "Extended Error Log support"
 390         depends on X86_MCE && X86_LOCAL_APIC
 391         select UEFI_CPER
 392         select RAS
 393         default n
 394         help
 395           Certain usages such as Predictive Failure Analysis (PFA) require
 396           more information about the error than what can be described in
 397           processor machine check banks. Most server processors log
 398           additional information about the error in processor uncore
 399           registers. Since the addresses and layout of these registers vary
 400           widely from one processor to another, system software cannot
 401           readily make use of them. To complicate matters further, some of
 402           the additional error information cannot be constructed without
 403           detailed knowledge about platform topology.
 404
 405           Enhanced MCA Logging allows firmware to provide additional error
 406           information to system software, synchronous with MCE or CMCI. This
 407           driver adds support for that functionality with corresponding
 408           tracepoint which carries that information to userspace.
 409
 410 menuconfig PMIC_OPREGION
 411         bool "PMIC (Power Management Integrated Circuit) operation region support"
 412         help
 413           Select this option to enable support for ACPI operation
 414           region of the PMIC chip. The operation region can be used
 415           to control power rails and sensor reading/writing on the
 416           PMIC chip.
 417
 418 if PMIC_OPREGION
 419 config CRC_PMIC_OPREGION
 420         bool "ACPI operation region support for CrystalCove PMIC"
 421         depends on INTEL_SOC_PMIC
 422         help
 423           This config adds ACPI operation region support for CrystalCove PMIC.
 424
 425 config XPOWER_PMIC_OPREGION
 426         bool "ACPI operation region support for XPower AXP288 PMIC"
 427         depends on AXP288_ADC = y
 428         help
 429           This config adds ACPI operation region support for XPower AXP288 PMIC.
 430
 431 endif
 432
 433 endif   # ACPI