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Linux/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
  9         depends on PCI
 10         select PNP
 11         default y if (IA64 || X86)
 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"
 62         select ACPI_DEBUG
 63         help
 64           Enable in-kernel debugging of AML facilities: statistics,
 65           internal 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 if ACPI_DEBUGGER
 70 
 71 config ACPI_DEBUGGER_USER
 72         tristate "Userspace debugger accessiblity"
 73         depends on DEBUG_FS
 74         help
 75           Export /sys/kernel/debug/acpi/acpidbg for userspace utilities
 76           to access the debugger functionalities.
 77 
 78 endif
 79 
 80 config ACPI_SPCR_TABLE
 81         bool
 82 
 83 config ACPI_SLEEP
 84         bool
 85         depends on SUSPEND || HIBERNATION
 86         depends on ACPI_SYSTEM_POWER_STATES_SUPPORT
 87         default y
 88 
 89 config ACPI_PROCFS_POWER
 90         bool "Deprecated power /proc/acpi directories"
 91         depends on X86 && PROC_FS
 92         help
 93           For backwards compatibility, this option allows
 94           deprecated power /proc/acpi/ directories to exist, even when
 95           they have been replaced by functions in /sys.
 96           The deprecated directories (and their replacements) include:
 97           /proc/acpi/battery/* (/sys/class/power_supply/*)
 98           /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
 99           This option has no effect on /proc/acpi/ directories
100           and functions, which do not yet exist in /sys
101           This option, together with the proc directories, will be
102           deleted in the future.
103 
104           Say N to delete power /proc/acpi/ directories that have moved to /sys/
105 
106 config ACPI_REV_OVERRIDE_POSSIBLE
107         bool "Allow supported ACPI revision to be overridden"
108         depends on X86
109         default y
110         help
111           The platform firmware on some systems expects Linux to return "5" as
112           the supported ACPI revision which makes it expose system configuration
113           information in a special way.
114 
115           For example, based on what ACPI exports as the supported revision,
116           Dell XPS 13 (2015) configures its audio device to either work in HDA
117           mode or in I2S mode, where the former is supposed to be used on Linux
118           until the latter is fully supported (in the kernel as well as in user
119           space).
120 
121           This option enables a DMI-based quirk for the above Dell machine (so
122           that HDA audio is exposed by the platform firmware to the kernel) and
123           makes it possible to force the kernel to return "5" as the supported
124           ACPI revision via the "acpi_rev_override" command line switch.
125 
126 config ACPI_EC_DEBUGFS
127         tristate "EC read/write access through /sys/kernel/debug/ec"
128         default n
129         help
130           Say N to disable Embedded Controller /sys/kernel/debug interface
131 
132           Be aware that using this interface can confuse your Embedded
133           Controller in a way that a normal reboot is not enough. You then
134           have to power off your system, and remove the laptop battery for
135           some seconds.
136           An Embedded Controller typically is available on laptops and reads
137           sensor values like battery state and temperature.
138           The kernel accesses the EC through ACPI parsed code provided by BIOS
139           tables. This option allows to access the EC directly without ACPI
140           code being involved.
141           Thus this option is a debug option that helps to write ACPI drivers
142           and can be used to identify ACPI code or EC firmware bugs.
143 
144 config ACPI_AC
145         tristate "AC Adapter"
146         depends on X86
147         select POWER_SUPPLY
148         default y
149         help
150           This driver supports the AC Adapter object, which indicates
151           whether a system is on AC or not.  If you have a system that can
152           switch between A/C and battery, say Y.
153 
154           To compile this driver as a module, choose M here:
155           the module will be called ac.
156 
157 config ACPI_BATTERY
158         tristate "Battery"
159         depends on X86
160         select POWER_SUPPLY
161         default y
162         help
163           This driver adds support for battery information through
164           /proc/acpi/battery. If you have a mobile system with a battery, 
165           say Y.
166 
167           To compile this driver as a module, choose M here:
168           the module will be called battery.
169 
170 config ACPI_BUTTON
171         tristate "Button"
172         depends on INPUT
173         default y
174         help
175           This driver handles events on the power, sleep, and lid buttons.
176           A daemon reads events from input devices or via netlink and
177           performs user-defined actions such as shutting down the system.
178           This is necessary for software-controlled poweroff.
179 
180           To compile this driver as a module, choose M here:
181           the module will be called button.
182 
183 config ACPI_VIDEO
184         tristate "Video"
185         depends on X86 && BACKLIGHT_CLASS_DEVICE
186         depends on INPUT
187         select THERMAL
188         help
189           This driver implements the ACPI Extensions For Display Adapters
190           for integrated graphics devices on motherboard, as specified in
191           ACPI 2.0 Specification, Appendix B.  This supports basic operations
192           such as defining the video POST device, retrieving EDID information,
193           and setting up a video output.
194 
195           To compile this driver as a module, choose M here:
196           the module will be called video.
197 
198 config ACPI_FAN
199         tristate "Fan"
200         depends on THERMAL
201         default y
202         help
203           This driver supports ACPI fan devices, allowing user-mode
204           applications to perform basic fan control (on, off, status).
205 
206           To compile this driver as a module, choose M here:
207           the module will be called fan.
208 
209 config ACPI_DOCK
210         bool "Dock"
211         help
212           This driver supports ACPI-controlled docking stations and removable
213           drive bays such as the IBM Ultrabay and the Dell Module Bay.
214 
215 config ACPI_CPU_FREQ_PSS
216         bool
217         select THERMAL
218 
219 config ACPI_PROCESSOR_CSTATE
220         def_bool y
221         depends on IA64 || X86
222 
223 config ACPI_PROCESSOR_IDLE
224         bool
225         select CPU_IDLE
226 
227 config ACPI_MCFG
228         bool
229 
230 config ACPI_CPPC_LIB
231         bool
232         depends on ACPI_PROCESSOR
233         select MAILBOX
234         select PCC
235         help
236           If this option is enabled, this file implements common functionality
237           to parse CPPC tables as described in the ACPI 5.1+ spec. The
238           routines implemented are meant to be used by other
239           drivers to control CPU performance using CPPC semantics.
240           If your platform does not support CPPC in firmware,
241           leave this option disabled.
242 
243 config ACPI_PROCESSOR
244         tristate "Processor"
245         depends on X86 || IA64 || ARM64
246         select ACPI_PROCESSOR_IDLE
247         select ACPI_CPU_FREQ_PSS if X86 || IA64
248         default y
249         help
250           This driver adds support for the ACPI Processor package. It is required
251           by several flavors of cpufreq performance-state, thermal, throttling and
252           idle drivers.
253 
254           To compile this driver as a module, choose M here:
255           the module will be called processor.
256 
257 config ACPI_IPMI
258         tristate "IPMI"
259         depends on IPMI_SI
260         default n
261         help
262           This driver enables the ACPI to access the BMC controller. And it
263           uses the IPMI request/response message to communicate with BMC
264           controller, which can be found on on the server.
265 
266           To compile this driver as a module, choose M here:
267           the module will be called as acpi_ipmi.
268 
269 config ACPI_HOTPLUG_CPU
270         bool
271         depends on ACPI_PROCESSOR && HOTPLUG_CPU
272         select ACPI_CONTAINER
273         default y
274 
275 config ACPI_PROCESSOR_AGGREGATOR
276         tristate "Processor Aggregator"
277         depends on ACPI_PROCESSOR
278         depends on X86
279         help
280           ACPI 4.0 defines processor Aggregator, which enables OS to perform
281           specific processor configuration and control that applies to all
282           processors in the platform. Currently only logical processor idling
283           is defined, which is to reduce power consumption. This driver
284           supports the new device.
285 
286 config ACPI_THERMAL
287         tristate "Thermal Zone"
288         depends on ACPI_PROCESSOR
289         select THERMAL
290         default y
291         help
292           This driver supports ACPI thermal zones.  Most mobile and
293           some desktop systems support ACPI thermal zones.  It is HIGHLY
294           recommended that this option be enabled, as your processor(s)
295           may be damaged without it.
296 
297           To compile this driver as a module, choose M here:
298           the module will be called thermal.
299 
300 config ACPI_NUMA
301         bool "NUMA support"
302         depends on NUMA
303         depends on (X86 || IA64 || ARM64)
304         default y if IA64_GENERIC || IA64_SGI_SN2 || ARM64
305 
306 config ACPI_CUSTOM_DSDT_FILE
307         string "Custom DSDT Table file to include"
308         default ""
309         depends on !STANDALONE
310         help
311           This option supports a custom DSDT by linking it into the kernel.
312           See Documentation/acpi/dsdt-override.txt
313 
314           Enter the full path name to the file which includes the AmlCode
315           declaration.
316 
317           If unsure, don't enter a file name.
318 
319 config ACPI_CUSTOM_DSDT
320         bool
321         default ACPI_CUSTOM_DSDT_FILE != ""
322 
323 config ARCH_HAS_ACPI_TABLE_UPGRADE
324         def_bool n
325 
326 config ACPI_TABLE_UPGRADE
327         bool "Allow upgrading ACPI tables via initrd"
328         depends on BLK_DEV_INITRD && ARCH_HAS_ACPI_TABLE_UPGRADE
329         default y
330         help
331           This option provides functionality to upgrade arbitrary ACPI tables
332           via initrd. No functional change if no ACPI tables are passed via
333           initrd, therefore it's safe to say Y.
334           See Documentation/acpi/initrd_table_override.txt for details
335 
336 config ACPI_DEBUG
337         bool "Debug Statements"
338         default n
339         help
340           The ACPI subsystem can produce debug output.  Saying Y enables this
341           output and increases the kernel size by around 50K.
342 
343           Use the acpi.debug_layer and acpi.debug_level kernel command-line
344           parameters documented in Documentation/acpi/debug.txt and
345           Documentation/admin-guide/kernel-parameters.rst to control the type and
346           amount of debug output.
347 
348 config ACPI_PCI_SLOT
349         bool "PCI slot detection driver"
350         depends on SYSFS
351         default n
352         help
353           This driver creates entries in /sys/bus/pci/slots/ for all PCI
354           slots in the system.  This can help correlate PCI bus addresses,
355           i.e., segment/bus/device/function tuples, with physical slots in
356           the system.  If you are unsure, say N.
357 
358 config X86_PM_TIMER
359         bool "Power Management Timer Support" if EXPERT
360         depends on X86
361         default y
362         help
363           The Power Management Timer is available on all ACPI-capable,
364           in most cases even if ACPI is unusable or blacklisted.
365 
366           This timing source is not affected by power management features
367           like aggressive processor idling, throttling, frequency and/or
368           voltage scaling, unlike the commonly used Time Stamp Counter
369           (TSC) timing source.
370 
371           You should nearly always say Y here because many modern
372           systems require this timer. 
373 
374 config ACPI_CONTAINER
375         bool "Container and Module Devices"
376         default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU)
377         help
378           This driver supports ACPI Container and Module devices (IDs
379           ACPI0004, PNP0A05, and PNP0A06).
380 
381           This helps support hotplug of nodes, CPUs, and memory.
382 
383           To compile this driver as a module, choose M here:
384           the module will be called container.
385 
386 config ACPI_HOTPLUG_MEMORY
387         bool "Memory Hotplug"
388         depends on MEMORY_HOTPLUG
389         help
390           This driver supports ACPI memory hotplug.  The driver
391           fields notifications on ACPI memory devices (PNP0C80),
392           which represent memory ranges that may be onlined or
393           offlined during runtime.
394 
395           If your hardware and firmware do not support adding or
396           removing memory devices at runtime, you need not enable
397           this driver.
398 
399           To compile this driver as a module, choose M here:
400           the module will be called acpi_memhotplug.
401 
402 config ACPI_HOTPLUG_IOAPIC
403         bool
404         depends on PCI
405         depends on X86_IO_APIC
406         default y
407 
408 config ACPI_SBS
409         tristate "Smart Battery System"
410         depends on X86
411         select POWER_SUPPLY
412         help
413           This driver supports the Smart Battery System, another
414           type of access to battery information, found on some laptops.
415 
416           To compile this driver as a module, choose M here:
417           the modules will be called sbs and sbshc.
418 
419 config ACPI_HED
420         tristate "Hardware Error Device"
421         help
422           This driver supports the Hardware Error Device (PNP0C33),
423           which is used to report some hardware errors notified via
424           SCI, mainly the corrected errors.
425 
426 config ACPI_CUSTOM_METHOD
427         tristate "Allow ACPI methods to be inserted/replaced at run time"
428         depends on DEBUG_FS
429         default n
430         help
431           This debug facility allows ACPI AML methods to be inserted and/or
432           replaced without rebooting the system. For details refer to:
433           Documentation/acpi/method-customizing.txt.
434 
435           NOTE: This option is security sensitive, because it allows arbitrary
436           kernel memory to be written to by root (uid=0) users, allowing them
437           to bypass certain security measures (e.g. if root is not allowed to
438           load additional kernel modules after boot, this feature may be used
439           to override that restriction).
440 
441 config ACPI_BGRT
442         bool "Boottime Graphics Resource Table support"
443         depends on EFI && X86
444         help
445           This driver adds support for exposing the ACPI Boottime Graphics
446           Resource Table, which allows the operating system to obtain
447           data from the firmware boot splash. It will appear under
448           /sys/firmware/acpi/bgrt/ .
449 
450 config ACPI_REDUCED_HARDWARE_ONLY
451         bool "Hardware-reduced ACPI support only" if EXPERT
452         def_bool n
453         help
454           This config item changes the way the ACPI code is built.  When this
455           option is selected, the kernel will use a specialized version of
456           ACPICA that ONLY supports the ACPI "reduced hardware" mode.  The
457           resulting kernel will be smaller but it will also be restricted to
458           running in ACPI reduced hardware mode ONLY.
459 
460           If you are unsure what to do, do not enable this option.
461 
462 source "drivers/acpi/nfit/Kconfig"
463 
464 source "drivers/acpi/apei/Kconfig"
465 source "drivers/acpi/dptf/Kconfig"
466 
467 config ACPI_WATCHDOG
468         bool
469 
470 config ACPI_EXTLOG
471         tristate "Extended Error Log support"
472         depends on X86_MCE && X86_LOCAL_APIC
473         select UEFI_CPER
474         select RAS
475         default n
476         help
477           Certain usages such as Predictive Failure Analysis (PFA) require
478           more information about the error than what can be described in
479           processor machine check banks. Most server processors log
480           additional information about the error in processor uncore
481           registers. Since the addresses and layout of these registers vary
482           widely from one processor to another, system software cannot
483           readily make use of them. To complicate matters further, some of
484           the additional error information cannot be constructed without
485           detailed knowledge about platform topology.
486 
487           Enhanced MCA Logging allows firmware to provide additional error
488           information to system software, synchronous with MCE or CMCI. This
489           driver adds support for that functionality with corresponding
490           tracepoint which carries that information to userspace.
491 
492 menuconfig PMIC_OPREGION
493         bool "PMIC (Power Management Integrated Circuit) operation region support"
494         help
495           Select this option to enable support for ACPI operation
496           region of the PMIC chip. The operation region can be used
497           to control power rails and sensor reading/writing on the
498           PMIC chip.
499 
500 if PMIC_OPREGION
501 config CRC_PMIC_OPREGION
502         bool "ACPI operation region support for CrystalCove PMIC"
503         depends on INTEL_SOC_PMIC
504         help
505           This config adds ACPI operation region support for CrystalCove PMIC.
506 
507 config XPOWER_PMIC_OPREGION
508         bool "ACPI operation region support for XPower AXP288 PMIC"
509         depends on AXP288_ADC = y
510         help
511           This config adds ACPI operation region support for XPower AXP288 PMIC.
512 
513 config BXT_WC_PMIC_OPREGION
514         bool "ACPI operation region support for BXT WhiskeyCove PMIC"
515         depends on INTEL_SOC_PMIC
516         help
517           This config adds ACPI operation region support for BXT WhiskeyCove PMIC.
518 
519 endif
520 
521 config ACPI_CONFIGFS
522         tristate "ACPI configfs support"
523         select CONFIGFS_FS
524         help
525           Select this option to enable support for ACPI configuration from
526           userspace. The configurable ACPI groups will be visible under
527           /config/acpi, assuming configfs is mounted under /config.
528 
529 if ARM64
530 source "drivers/acpi/arm64/Kconfig"
531 endif
532 
533 endif   # ACPI

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