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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_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

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