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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 && 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_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

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