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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# ACPI Configuration
3#
4
Jan Engelhardt3f2c48c2007-07-03 01:40:59 -04005menuconfig ACPI
Frans Pop355ee5e2007-10-29 17:20:38 -04006 bool "ACPI (Advanced Configuration and Power Interface) Support"
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 depends on !IA64_HP_SIM
Graeme Gregoryb6a02172015-03-24 14:02:53 +00008 depends on IA64 || X86 || (ARM64 && EXPERT)
Adrian Bunk13001242006-03-28 17:04:00 -05009 depends on PCI
Len Brown243b66e2007-02-15 22:34:36 -050010 select PNP
Linus Torvalds1da177e2005-04-16 15:20:36 -070011 default y
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070012 help
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 Advanced Configuration and Power Interface (ACPI) support for
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070014 Linux requires an ACPI-compliant platform (hardware/firmware),
Linus Torvalds1da177e2005-04-16 15:20:36 -070015 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
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070024 are configured, ACPI is used.
Linus Torvalds1da177e2005-04-16 15:20:36 -070025
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070026 The project home page for the Linux ACPI subsystem is here:
Rafael J. Wysockiaaf3d292013-10-10 23:25:58 +020027 <https://01.org/linux-acpi>
Linus Torvalds1da177e2005-04-16 15:20:36 -070028
29 Linux support for ACPI is based on Intel Corporation's ACPI
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070030 Component Architecture (ACPI CA). For more information on the
31 ACPI CA, see:
32 <http://acpica.org/>
Linus Torvalds1da177e2005-04-16 15:20:36 -070033
Hanjun Guoc7f52202014-04-08 20:59:48 +080034 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.
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -070039 The specification is available at:
Linus Torvalds1da177e2005-04-16 15:20:36 -070040 <http://www.acpi.info>
Hanjun Guoc7f52202014-04-08 20:59:48 +080041 <http://www.uefi.org/acpi/specs>
Linus Torvalds1da177e2005-04-16 15:20:36 -070042
Len Brown3e11c3c2005-05-27 04:53:27 -040043if ACPI
44
Graeme Gregory8a1664b2014-07-18 18:02:52 +080045config ACPI_LEGACY_TABLES_LOOKUP
46 bool
47
Hanjun Guo46ba51e2014-07-18 18:02:54 +080048config ARCH_MIGHT_HAVE_ACPI_PDC
49 bool
50
Lorenzo Pieralisid8f4f162015-03-24 17:58:51 +000051config ACPI_GENERIC_GSI
52 bool
53
Graeme Gregory6e0a0ea2015-03-24 14:02:39 +000054config ACPI_SYSTEM_POWER_STATES_SUPPORT
55 bool
56
Suthikulpanit, Suraveed0562672015-06-10 11:08:52 -050057config ACPI_CCA_REQUIRED
58 bool
59
Lv Zheng4d946f72015-10-19 10:25:56 +080060config ACPI_DEBUGGER
Lv Zheng8cfb0cd2015-12-03 10:43:00 +080061 bool "AML debugger interface"
Lv Zheng4d946f72015-10-19 10:25:56 +080062 select ACPI_DEBUG
63 help
Lv Zheng836d083012015-12-03 10:43:14 +080064 Enable in-kernel debugging of AML facilities: statistics,
65 internal object dump, single step control method execution.
Lv Zheng4d946f72015-10-19 10:25:56 +080066 This is still under development, currently enabling this only
67 results in the compilation of the ACPICA debugger files.
68
Lv Zheng836d083012015-12-03 10:43:14 +080069if ACPI_DEBUGGER
70
71config 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
78endif
79
Len Brown673d5b42007-07-28 03:33:16 -040080config ACPI_SLEEP
81 bool
Rafael J. Wysocki5d1e0722008-10-22 14:58:43 -040082 depends on SUSPEND || HIBERNATION
Graeme Gregory6e0a0ea2015-03-24 14:02:39 +000083 depends on ACPI_SYSTEM_POWER_STATES_SUPPORT
Len Brown673d5b42007-07-28 03:33:16 -040084 default y
85
Lan Tianyue2a7c3d2014-05-04 11:07:24 +080086config ACPI_PROCFS_POWER
87 bool "Deprecated power /proc/acpi directories"
Lorenzo Pieralisibbf55ae2015-05-01 11:27:01 +010088 depends on X86 && PROC_FS
Lan Tianyue2a7c3d2014-05-04 11:07:24 +080089 help
90 For backwards compatibility, this option allows
91 deprecated power /proc/acpi/ directories to exist, even when
92 they have been replaced by functions in /sys.
93 The deprecated directories (and their replacements) include:
94 /proc/acpi/battery/* (/sys/class/power_supply/*)
95 /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
96 This option has no effect on /proc/acpi/ directories
97 and functions, which do not yet exist in /sys
98 This option, together with the proc directories, will be
Rafael J. Wysocki3afcb962014-05-10 13:51:36 +020099 deleted in the future.
Lan Tianyue2a7c3d2014-05-04 11:07:24 +0800100
101 Say N to delete power /proc/acpi/ directories that have moved to /sys/
102
Rafael J. Wysocki18d78b62015-07-03 01:06:00 +0200103config ACPI_REV_OVERRIDE_POSSIBLE
104 bool "Allow supported ACPI revision to be overriden"
105 depends on X86
106 default y
107 help
108 The platform firmware on some systems expects Linux to return "5" as
109 the supported ACPI revision which makes it expose system configuration
110 information in a special way.
111
112 For example, based on what ACPI exports as the supported revision,
113 Dell XPS 13 (2015) configures its audio device to either work in HDA
114 mode or in I2S mode, where the former is supposed to be used on Linux
115 until the latter is fully supported (in the kernel as well as in user
116 space).
117
118 This option enables a DMI-based quirk for the above Dell machine (so
119 that HDA audio is exposed by the platform firmware to the kernel) and
120 makes it possible to force the kernel to return "5" as the supported
121 ACPI revision via the "acpi_rev_override" command line switch.
122
Thomas Renninger1195a092010-07-16 13:11:31 +0200123config ACPI_EC_DEBUGFS
124 tristate "EC read/write access through /sys/kernel/debug/ec"
Thomas Renninger500de3dd2010-07-29 22:30:24 +0200125 default n
Thomas Renninger1195a092010-07-16 13:11:31 +0200126 help
127 Say N to disable Embedded Controller /sys/kernel/debug interface
128
Thomas Renninger500de3dd2010-07-29 22:30:24 +0200129 Be aware that using this interface can confuse your Embedded
130 Controller in a way that a normal reboot is not enough. You then
Andrea Gelmini25cb1bf2010-08-18 15:22:10 +0200131 have to power off your system, and remove the laptop battery for
Thomas Renninger500de3dd2010-07-29 22:30:24 +0200132 some seconds.
Thomas Renninger1195a092010-07-16 13:11:31 +0200133 An Embedded Controller typically is available on laptops and reads
134 sensor values like battery state and temperature.
Thomas Renninger500de3dd2010-07-29 22:30:24 +0200135 The kernel accesses the EC through ACPI parsed code provided by BIOS
136 tables. This option allows to access the EC directly without ACPI
137 code being involved.
Thomas Renninger1195a092010-07-16 13:11:31 +0200138 Thus this option is a debug option that helps to write ACPI drivers
139 and can be used to identify ACPI code or EC firmware bugs.
140
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141config ACPI_AC
142 tristate "AC Adapter"
Alexey Starikovskiy5527c8b2007-10-29 17:08:59 -0400143 depends on X86
Zhang Rui1b3d4c32010-10-08 13:54:57 +0800144 select POWER_SUPPLY
Len Brown07fefe42005-08-25 12:22:04 -0400145 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700147 This driver supports the AC Adapter object, which indicates
148 whether a system is on AC or not. If you have a system that can
Len Brown07fefe42005-08-25 12:22:04 -0400149 switch between A/C and battery, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700151 To compile this driver as a module, choose M here:
152 the module will be called ac.
153
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154config ACPI_BATTERY
155 tristate "Battery"
Alexey Starikovskiy5527c8b2007-10-29 17:08:59 -0400156 depends on X86
Zhang Rui1b3d4c32010-10-08 13:54:57 +0800157 select POWER_SUPPLY
Len Brown07fefe42005-08-25 12:22:04 -0400158 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159 help
160 This driver adds support for battery information through
161 /proc/acpi/battery. If you have a mobile system with a battery,
162 say Y.
163
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700164 To compile this driver as a module, choose M here:
165 the module will be called battery.
166
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167config ACPI_BUTTON
168 tristate "Button"
Dmitry Torokhovc0968f02006-11-09 00:40:13 -0500169 depends on INPUT
Len Brown07fefe42005-08-25 12:22:04 -0400170 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700172 This driver handles events on the power, sleep, and lid buttons.
Krzysztof Mazur7d13f942013-10-13 00:11:00 +0200173 A daemon reads events from input devices or via netlink and
174 performs user-defined actions such as shutting down the system.
175 This is necessary for software-controlled poweroff.
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700176
177 To compile this driver as a module, choose M here:
178 the module will be called button.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179
180config ACPI_VIDEO
181 tristate "Video"
Jean Delvare9f380fc2014-03-17 15:46:44 +0100182 depends on X86 && BACKLIGHT_CLASS_DEVICE
Andreas Herrmann03e2bf22007-09-17 23:41:05 +0200183 depends on INPUT
Zhang Rui63c4ec92008-04-21 16:07:13 +0800184 select THERMAL
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700186 This driver implements the ACPI Extensions For Display Adapters
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187 for integrated graphics devices on motherboard, as specified in
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700188 ACPI 2.0 Specification, Appendix B. This supports basic operations
189 such as defining the video POST device, retrieving EDID information,
190 and setting up a video output.
191
192 To compile this driver as a module, choose M here:
193 the module will be called video.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194
195config ACPI_FAN
196 tristate "Fan"
Zhang Ruid8054742014-06-19 15:43:29 +0800197 depends on THERMAL
Len Brown07fefe42005-08-25 12:22:04 -0400198 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700200 This driver supports ACPI fan devices, allowing user-mode
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201 applications to perform basic fan control (on, off, status).
202
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700203 To compile this driver as a module, choose M here:
204 the module will be called fan.
205
Len Brownc8f7a622006-07-09 17:22:28 -0400206config ACPI_DOCK
Shaohua Li898b0542008-09-27 11:10:28 +0800207 bool "Dock"
Len Brownc8f7a622006-07-09 17:22:28 -0400208 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700209 This driver supports ACPI-controlled docking stations and removable
210 drive bays such as the IBM Ultrabay and the Dell Module Bay.
Kristen Carlson Accardi01b57e72006-10-20 14:30:25 -0700211
Ashwin Chaugule239708a2015-08-05 09:40:25 -0400212config ACPI_CPU_FREQ_PSS
213 bool
214 select THERMAL
215
Ashwin Chaugule5f055862015-08-05 09:40:26 -0400216config ACPI_PROCESSOR_IDLE
217 bool
218 select CPU_IDLE
219
Ashwin Chaugule337aadf2015-10-02 10:01:19 -0400220config ACPI_CPPC_LIB
221 bool
222 depends on ACPI_PROCESSOR
223 depends on !ACPI_CPU_FREQ_PSS
224 select MAILBOX
225 select PCC
226 help
227 If this option is enabled, this file implements common functionality
228 to parse CPPC tables as described in the ACPI 5.1+ spec. The
229 routines implemented are meant to be used by other
230 drivers to control CPU performance using CPPC semantics.
231 If your platform does not support CPPC in firmware,
232 leave this option disabled.
233
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234config ACPI_PROCESSOR
235 tristate "Processor"
Ashwin Chaugulead806ea2015-09-09 16:27:08 -0400236 depends on X86 || IA64 || ARM64
237 select ACPI_PROCESSOR_IDLE if X86 || IA64
238 select ACPI_CPU_FREQ_PSS if X86 || IA64
Len Brown07fefe42005-08-25 12:22:04 -0400239 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240 help
Ashwin Chaugule239708a2015-08-05 09:40:25 -0400241 This driver adds support for the ACPI Processor package. It is required
242 by several flavors of cpufreq performance-state, thermal, throttling and
243 idle drivers.
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700244
245 To compile this driver as a module, choose M here:
246 the module will be called processor.
Lv Zheng4b88e332013-09-13 13:14:51 +0800247
Zhao Yakuie92b2972010-12-08 10:10:18 +0800248config ACPI_IPMI
249 tristate "IPMI"
Lv Zheng4b88e332013-09-13 13:14:51 +0800250 depends on IPMI_SI
Zhao Yakuie92b2972010-12-08 10:10:18 +0800251 default n
252 help
253 This driver enables the ACPI to access the BMC controller. And it
254 uses the IPMI request/response message to communicate with BMC
255 controller, which can be found on on the server.
256
257 To compile this driver as a module, choose M here:
258 the module will be called as acpi_ipmi.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259
260config ACPI_HOTPLUG_CPU
Adrian Bunkcbfc1ba2005-07-30 04:18:00 -0400261 bool
Kees Cookf756f282013-01-16 18:53:28 -0800262 depends on ACPI_PROCESSOR && HOTPLUG_CPU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263 select ACPI_CONTAINER
Adrian Bunkcbfc1ba2005-07-30 04:18:00 -0400264 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265
Shaohua Li8e0af512009-07-27 18:11:02 -0400266config ACPI_PROCESSOR_AGGREGATOR
267 tristate "Processor Aggregator"
268 depends on ACPI_PROCESSOR
Len Brownd91f79e2009-09-27 02:35:55 -0400269 depends on X86
Shaohua Li8e0af512009-07-27 18:11:02 -0400270 help
271 ACPI 4.0 defines processor Aggregator, which enables OS to perform
Jiri Slabyc4c4e2a2009-10-09 15:53:24 +0200272 specific processor configuration and control that applies to all
Shaohua Li8e0af512009-07-27 18:11:02 -0400273 processors in the platform. Currently only logical processor idling
274 is defined, which is to reduce power consumption. This driver
Jiri Slabyc4c4e2a2009-10-09 15:53:24 +0200275 supports the new device.
Shaohua Li8e0af512009-07-27 18:11:02 -0400276
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277config ACPI_THERMAL
278 tristate "Thermal Zone"
279 depends on ACPI_PROCESSOR
Zhang Rui3f655ef2008-01-17 15:51:11 +0800280 select THERMAL
Len Brown07fefe42005-08-25 12:22:04 -0400281 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700283 This driver supports ACPI thermal zones. Most mobile and
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284 some desktop systems support ACPI thermal zones. It is HIGHLY
285 recommended that this option be enabled, as your processor(s)
286 may be damaged without it.
287
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700288 To compile this driver as a module, choose M here:
289 the module will be called thermal.
290
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291config ACPI_NUMA
292 bool "NUMA support"
293 depends on NUMA
Yasunori Goto762834e2006-06-23 02:03:19 -0700294 depends on (X86 || IA64)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295 default y if IA64_GENERIC || IA64_SGI_SN2
296
Randy Dunlap7ce95732008-02-22 11:25:04 -0800297config ACPI_CUSTOM_DSDT_FILE
298 string "Custom DSDT Table file to include"
299 default ""
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300 depends on !STANDALONE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301 help
Len Brownd89e9d62008-02-06 19:28:02 -0500302 This option supports a custom DSDT by linking it into the kernel.
303 See Documentation/acpi/dsdt-override.txt
304
Uwe Zeisbergerc30fe7f2006-03-24 18:23:14 +0100305 Enter the full path name to the file which includes the AmlCode
306 declaration.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307
Randy Dunlap7ce95732008-02-22 11:25:04 -0800308 If unsure, don't enter a file name.
309
310config ACPI_CUSTOM_DSDT
311 bool
312 default ACPI_CUSTOM_DSDT_FILE != ""
313
Thomas Renninger53aac442012-10-01 00:23:54 +0200314config ACPI_INITRD_TABLE_OVERRIDE
Thomas Renninger565d9562013-02-22 14:12:22 +0100315 bool "ACPI tables override via initrd"
316 depends on BLK_DEV_INITRD && X86
Thomas Renninger53aac442012-10-01 00:23:54 +0200317 default n
318 help
319 This option provides functionality to override arbitrary ACPI tables
320 via initrd. No functional change if no ACPI tables are passed via
321 initrd, therefore it's safe to say Y.
322 See Documentation/acpi/initrd_table_override.txt for details
323
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324config ACPI_DEBUG
325 bool "Debug Statements"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326 default n
327 help
Bjorn Helgaasa0d84a92008-11-07 16:58:05 -0700328 The ACPI subsystem can produce debug output. Saying Y enables this
329 output and increases the kernel size by around 50K.
330
331 Use the acpi.debug_layer and acpi.debug_level kernel command-line
332 parameters documented in Documentation/acpi/debug.txt and
333 Documentation/kernel-parameters.txt to control the type and
334 amount of debug output.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335
Alex Chiang8344b562008-06-10 15:30:42 -0600336config ACPI_PCI_SLOT
Jiang Liuab1a2e02013-01-19 00:07:42 +0800337 bool "PCI slot detection driver"
Alex Chiang268a03a2009-06-17 19:03:57 -0600338 depends on SYSFS
Alex Chiang8344b562008-06-10 15:30:42 -0600339 default n
340 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700341 This driver creates entries in /sys/bus/pci/slots/ for all PCI
342 slots in the system. This can help correlate PCI bus addresses,
343 i.e., segment/bus/device/function tuples, with physical slots in
344 the system. If you are unsure, say N.
345
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346config X86_PM_TIMER
David Rientjes6a108a12011-01-20 14:44:16 -0800347 bool "Power Management Timer Support" if EXPERT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348 depends on X86
Len Brown07fefe42005-08-25 12:22:04 -0400349 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350 help
351 The Power Management Timer is available on all ACPI-capable,
352 in most cases even if ACPI is unusable or blacklisted.
353
Matt LaPlantec73a6682006-10-03 22:24:43 +0200354 This timing source is not affected by power management features
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355 like aggressive processor idling, throttling, frequency and/or
356 voltage scaling, unlike the commonly used Time Stamp Counter
357 (TSC) timing source.
358
Andi Kleene78256b2006-02-26 04:18:37 +0100359 You should nearly always say Y here because many modern
360 systems require this timer.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361
362config ACPI_CONTAINER
Linus Torvalds06991c22013-02-21 12:05:51 -0800363 bool "Container and Module Devices"
Paul Bolleea6a4582013-03-11 10:53:48 +0000364 default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU)
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700365 help
366 This driver supports ACPI Container and Module devices (IDs
367 ACPI0004, PNP0A05, and PNP0A06).
Keiichiro Tokunaga45b1b192005-03-02 00:00:00 -0500368
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700369 This helps support hotplug of nodes, CPUs, and memory.
370
371 To compile this driver as a module, choose M here:
372 the module will be called container.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373
374config ACPI_HOTPLUG_MEMORY
Rafael J. Wysocki0a347642013-03-03 23:18:03 +0100375 bool "Memory Hotplug"
Yasunori Gotobc02af92006-06-27 02:53:30 -0700376 depends on MEMORY_HOTPLUG
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700378 This driver supports ACPI memory hotplug. The driver
379 fields notifications on ACPI memory devices (PNP0C80),
380 which represent memory ranges that may be onlined or
381 offlined during runtime.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700383 If your hardware and firmware do not support adding or
384 removing memory devices at runtime, you need not enable
385 this driver.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700387 To compile this driver as a module, choose M here:
388 the module will be called acpi_memhotplug.
Rich Townsend3f86b832006-07-01 11:36:54 -0400389
Jiang Liuc1836192015-02-05 13:44:49 +0800390config ACPI_HOTPLUG_IOAPIC
391 bool
392 depends on PCI
393 depends on X86_IO_APIC
394 default y
395
Rich Townsend3f86b832006-07-01 11:36:54 -0400396config ACPI_SBS
Alexey Starikovskiy94f6c082007-09-26 19:43:48 +0400397 tristate "Smart Battery System"
Vladimir Lebedevb4150fc2007-03-19 17:45:50 +0300398 depends on X86
Zhang Rui1b3d4c32010-10-08 13:54:57 +0800399 select POWER_SUPPLY
Rich Townsend3f86b832006-07-01 11:36:54 -0400400 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700401 This driver supports the Smart Battery System, another
Alexey Starikovskiy94f6c082007-09-26 19:43:48 +0400402 type of access to battery information, found on some laptops.
Rich Townsend3f86b832006-07-01 11:36:54 -0400403
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700404 To compile this driver as a module, choose M here:
405 the modules will be called sbs and sbshc.
406
Huang Ying801eab82010-05-18 14:35:17 +0800407config ACPI_HED
408 tristate "Hardware Error Device"
409 help
410 This driver supports the Hardware Error Device (PNP0C33),
411 which is used to report some hardware errors notified via
412 SCI, mainly the corrected errors.
413
Thomas Renninger526b4af2011-05-26 12:26:24 +0200414config ACPI_CUSTOM_METHOD
415 tristate "Allow ACPI methods to be inserted/replaced at run time"
416 depends on DEBUG_FS
417 default n
418 help
Justin P. Mattockbd1b2a52012-01-03 08:49:48 -0800419 This debug facility allows ACPI AML methods to be inserted and/or
Thomas Renninger526b4af2011-05-26 12:26:24 +0200420 replaced without rebooting the system. For details refer to:
421 Documentation/acpi/method-customizing.txt.
422
423 NOTE: This option is security sensitive, because it allows arbitrary
424 kernel memory to be written to by root (uid=0) users, allowing them
425 to bypass certain security measures (e.g. if root is not allowed to
426 load additional kernel modules after boot, this feature may be used
427 to override that restriction).
428
Matthew Garrettd1ff4b12012-01-31 13:19:20 -0500429config ACPI_BGRT
Josh Triplett2223af32012-09-28 17:57:05 -0700430 bool "Boottime Graphics Resource Table support"
Tony Lucke66cd532013-04-03 13:17:20 +0200431 depends on EFI && X86
Matthew Garrettd1ff4b12012-01-31 13:19:20 -0500432 help
433 This driver adds support for exposing the ACPI Boottime Graphics
434 Resource Table, which allows the operating system to obtain
435 data from the firmware boot splash. It will appear under
436 /sys/firmware/acpi/bgrt/ .
437
Al Stoneaf1ae782014-01-17 11:51:30 -0700438config ACPI_REDUCED_HARDWARE_ONLY
439 bool "Hardware-reduced ACPI support only" if EXPERT
440 def_bool n
Al Stoneaf1ae782014-01-17 11:51:30 -0700441 help
Hanjun Guo99a33ff2014-11-14 17:44:07 +0800442 This config item changes the way the ACPI code is built. When this
443 option is selected, the kernel will use a specialized version of
444 ACPICA that ONLY supports the ACPI "reduced hardware" mode. The
445 resulting kernel will be smaller but it will also be restricted to
446 running in ACPI reduced hardware mode ONLY.
Al Stoneaf1ae782014-01-17 11:51:30 -0700447
Hanjun Guo99a33ff2014-11-14 17:44:07 +0800448 If you are unsure what to do, do not enable this option.
Al Stoneaf1ae782014-01-17 11:51:30 -0700449
Dan Williamsb94d5232015-05-19 22:54:31 -0400450config ACPI_NFIT
451 tristate "ACPI NVDIMM Firmware Interface Table (NFIT)"
452 depends on PHYS_ADDR_T_64BIT
453 depends on BLK_DEV
Ross Zwisler67a3e8f2015-08-27 13:14:20 -0600454 depends on ARCH_HAS_MMIO_FLUSH
Dan Williamsb94d5232015-05-19 22:54:31 -0400455 select LIBNVDIMM
456 help
457 Infrastructure to probe ACPI 6 compliant platforms for
458 NVDIMMs (NFIT) and register a libnvdimm device tree. In
459 addition to storage devices this also enables libnvdimm to pass
460 ACPI._DSM messages for platform/dimm configuration.
461
462 To compile this driver as a module, choose M here:
463 the module will be called nfit.
464
Dan Williams62232e452015-06-08 14:27:06 -0400465config ACPI_NFIT_DEBUG
466 bool "NFIT DSM debug"
467 depends on ACPI_NFIT
468 depends on DYNAMIC_DEBUG
469 default n
470 help
471 Enabling this option causes the nfit driver to dump the
472 input and output buffers of _DSM operations on the ACPI0012
473 device and its children. This can be very verbose, so leave
474 it disabled unless you are debugging a hardware / firmware
475 issue.
476
Huang Yinga643ce22010-05-18 14:35:12 +0800477source "drivers/acpi/apei/Kconfig"
478
Chen, Gong4b3db702013-10-21 14:29:25 -0700479config ACPI_EXTLOG
480 tristate "Extended Error Log support"
Luck, Tony9ebddac2013-11-08 14:03:33 -0800481 depends on X86_MCE && X86_LOCAL_APIC
Luck, Tony7ea6c6c2013-10-28 14:06:55 -0700482 select UEFI_CPER
Chen, Gong2dfb7d52014-06-17 22:33:07 -0400483 select RAS
Chen, Gong4b3db702013-10-21 14:29:25 -0700484 default n
485 help
486 Certain usages such as Predictive Failure Analysis (PFA) require
487 more information about the error than what can be described in
488 processor machine check banks. Most server processors log
489 additional information about the error in processor uncore
490 registers. Since the addresses and layout of these registers vary
491 widely from one processor to another, system software cannot
492 readily make use of them. To complicate matters further, some of
493 the additional error information cannot be constructed without
494 detailed knowledge about platform topology.
495
496 Enhanced MCA Logging allows firmware to provide additional error
497 information to system software, synchronous with MCE or CMCI. This
Chen, Gong2dfb7d52014-06-17 22:33:07 -0400498 driver adds support for that functionality with corresponding
499 tracepoint which carries that information to userspace.
Chen, Gong4b3db702013-10-21 14:29:25 -0700500
Aaron Lub1eea852014-11-24 17:21:54 +0800501menuconfig PMIC_OPREGION
502 bool "PMIC (Power Management Integrated Circuit) operation region support"
503 help
504 Select this option to enable support for ACPI operation
505 region of the PMIC chip. The operation region can be used
506 to control power rails and sensor reading/writing on the
507 PMIC chip.
508
509if PMIC_OPREGION
510config CRC_PMIC_OPREGION
511 bool "ACPI operation region support for CrystalCove PMIC"
512 depends on INTEL_SOC_PMIC
513 help
514 This config adds ACPI operation region support for CrystalCove PMIC.
515
Aaron Lud8139f62014-11-24 17:24:47 +0800516config XPOWER_PMIC_OPREGION
517 bool "ACPI operation region support for XPower AXP288 PMIC"
518 depends on AXP288_ADC = y
519 help
520 This config adds ACPI operation region support for XPower AXP288 PMIC.
521
Aaron Lub1eea852014-11-24 17:21:54 +0800522endif
523
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524endif # ACPI