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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
Len Brown673d5b42007-07-28 03:33:16 -040060config ACPI_SLEEP
61 bool
Rafael J. Wysocki5d1e0722008-10-22 14:58:43 -040062 depends on SUSPEND || HIBERNATION
Graeme Gregory6e0a0ea2015-03-24 14:02:39 +000063 depends on ACPI_SYSTEM_POWER_STATES_SUPPORT
Len Brown673d5b42007-07-28 03:33:16 -040064 default y
65
Lan Tianyue2a7c3d2014-05-04 11:07:24 +080066config ACPI_PROCFS_POWER
67 bool "Deprecated power /proc/acpi directories"
Lorenzo Pieralisibbf55ae2015-05-01 11:27:01 +010068 depends on X86 && PROC_FS
Lan Tianyue2a7c3d2014-05-04 11:07:24 +080069 help
70 For backwards compatibility, this option allows
71 deprecated power /proc/acpi/ directories to exist, even when
72 they have been replaced by functions in /sys.
73 The deprecated directories (and their replacements) include:
74 /proc/acpi/battery/* (/sys/class/power_supply/*)
75 /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
76 This option has no effect on /proc/acpi/ directories
77 and functions, which do not yet exist in /sys
78 This option, together with the proc directories, will be
Rafael J. Wysocki3afcb962014-05-10 13:51:36 +020079 deleted in the future.
Lan Tianyue2a7c3d2014-05-04 11:07:24 +080080
81 Say N to delete power /proc/acpi/ directories that have moved to /sys/
82
Rafael J. Wysocki18d78b62015-07-03 01:06:00 +020083config ACPI_REV_OVERRIDE_POSSIBLE
84 bool "Allow supported ACPI revision to be overriden"
85 depends on X86
86 default y
87 help
88 The platform firmware on some systems expects Linux to return "5" as
89 the supported ACPI revision which makes it expose system configuration
90 information in a special way.
91
92 For example, based on what ACPI exports as the supported revision,
93 Dell XPS 13 (2015) configures its audio device to either work in HDA
94 mode or in I2S mode, where the former is supposed to be used on Linux
95 until the latter is fully supported (in the kernel as well as in user
96 space).
97
98 This option enables a DMI-based quirk for the above Dell machine (so
99 that HDA audio is exposed by the platform firmware to the kernel) and
100 makes it possible to force the kernel to return "5" as the supported
101 ACPI revision via the "acpi_rev_override" command line switch.
102
Thomas Renninger1195a092010-07-16 13:11:31 +0200103config ACPI_EC_DEBUGFS
104 tristate "EC read/write access through /sys/kernel/debug/ec"
Thomas Renninger500de3dd2010-07-29 22:30:24 +0200105 default n
Thomas Renninger1195a092010-07-16 13:11:31 +0200106 help
107 Say N to disable Embedded Controller /sys/kernel/debug interface
108
Thomas Renninger500de3dd2010-07-29 22:30:24 +0200109 Be aware that using this interface can confuse your Embedded
110 Controller in a way that a normal reboot is not enough. You then
Andrea Gelmini25cb1bf2010-08-18 15:22:10 +0200111 have to power off your system, and remove the laptop battery for
Thomas Renninger500de3dd2010-07-29 22:30:24 +0200112 some seconds.
Thomas Renninger1195a092010-07-16 13:11:31 +0200113 An Embedded Controller typically is available on laptops and reads
114 sensor values like battery state and temperature.
Thomas Renninger500de3dd2010-07-29 22:30:24 +0200115 The kernel accesses the EC through ACPI parsed code provided by BIOS
116 tables. This option allows to access the EC directly without ACPI
117 code being involved.
Thomas Renninger1195a092010-07-16 13:11:31 +0200118 Thus this option is a debug option that helps to write ACPI drivers
119 and can be used to identify ACPI code or EC firmware bugs.
120
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121config ACPI_AC
122 tristate "AC Adapter"
Alexey Starikovskiy5527c8b2007-10-29 17:08:59 -0400123 depends on X86
Zhang Rui1b3d4c32010-10-08 13:54:57 +0800124 select POWER_SUPPLY
Len Brown07fefe42005-08-25 12:22:04 -0400125 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700127 This driver supports the AC Adapter object, which indicates
128 whether a system is on AC or not. If you have a system that can
Len Brown07fefe42005-08-25 12:22:04 -0400129 switch between A/C and battery, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700131 To compile this driver as a module, choose M here:
132 the module will be called ac.
133
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134config ACPI_BATTERY
135 tristate "Battery"
Alexey Starikovskiy5527c8b2007-10-29 17:08:59 -0400136 depends on X86
Zhang Rui1b3d4c32010-10-08 13:54:57 +0800137 select POWER_SUPPLY
Len Brown07fefe42005-08-25 12:22:04 -0400138 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139 help
140 This driver adds support for battery information through
141 /proc/acpi/battery. If you have a mobile system with a battery,
142 say Y.
143
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700144 To compile this driver as a module, choose M here:
145 the module will be called battery.
146
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147config ACPI_BUTTON
148 tristate "Button"
Dmitry Torokhovc0968f02006-11-09 00:40:13 -0500149 depends on INPUT
Len Brown07fefe42005-08-25 12:22:04 -0400150 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700152 This driver handles events on the power, sleep, and lid buttons.
Krzysztof Mazur7d13f942013-10-13 00:11:00 +0200153 A daemon reads events from input devices or via netlink and
154 performs user-defined actions such as shutting down the system.
155 This is necessary for software-controlled poweroff.
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700156
157 To compile this driver as a module, choose M here:
158 the module will be called button.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159
160config ACPI_VIDEO
161 tristate "Video"
Jean Delvare9f380fc2014-03-17 15:46:44 +0100162 depends on X86 && BACKLIGHT_CLASS_DEVICE
Andreas Herrmann03e2bf22007-09-17 23:41:05 +0200163 depends on INPUT
Zhang Rui63c4ec92008-04-21 16:07:13 +0800164 select THERMAL
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700166 This driver implements the ACPI Extensions For Display Adapters
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167 for integrated graphics devices on motherboard, as specified in
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700168 ACPI 2.0 Specification, Appendix B. This supports basic operations
169 such as defining the video POST device, retrieving EDID information,
170 and setting up a video output.
171
172 To compile this driver as a module, choose M here:
173 the module will be called video.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174
175config ACPI_FAN
176 tristate "Fan"
Zhang Ruid8054742014-06-19 15:43:29 +0800177 depends on THERMAL
Len Brown07fefe42005-08-25 12:22:04 -0400178 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700180 This driver supports ACPI fan devices, allowing user-mode
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181 applications to perform basic fan control (on, off, status).
182
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700183 To compile this driver as a module, choose M here:
184 the module will be called fan.
185
Len Brownc8f7a622006-07-09 17:22:28 -0400186config ACPI_DOCK
Shaohua Li898b0542008-09-27 11:10:28 +0800187 bool "Dock"
Len Brownc8f7a622006-07-09 17:22:28 -0400188 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700189 This driver supports ACPI-controlled docking stations and removable
190 drive bays such as the IBM Ultrabay and the Dell Module Bay.
Kristen Carlson Accardi01b57e72006-10-20 14:30:25 -0700191
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192config ACPI_PROCESSOR
193 tristate "Processor"
Zhang Rui63c4ec92008-04-21 16:07:13 +0800194 select THERMAL
Jean Delvarea4084c12010-10-10 14:54:52 +0200195 select CPU_IDLE
Graeme Gregoryb6a02172015-03-24 14:02:53 +0000196 depends on X86 || IA64
Len Brown07fefe42005-08-25 12:22:04 -0400197 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700199 This driver installs ACPI as the idle handler for Linux and uses
200 ACPI C2 and C3 processor states to save power on systems that
Len Brown07fefe42005-08-25 12:22:04 -0400201 support it. It is required by several flavors of cpufreq
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700202 performance-state drivers.
203
204 To compile this driver as a module, choose M here:
205 the module will be called processor.
Lv Zheng4b88e332013-09-13 13:14:51 +0800206
Zhao Yakuie92b2972010-12-08 10:10:18 +0800207config ACPI_IPMI
208 tristate "IPMI"
Lv Zheng4b88e332013-09-13 13:14:51 +0800209 depends on IPMI_SI
Zhao Yakuie92b2972010-12-08 10:10:18 +0800210 default n
211 help
212 This driver enables the ACPI to access the BMC controller. And it
213 uses the IPMI request/response message to communicate with BMC
214 controller, which can be found on on the server.
215
216 To compile this driver as a module, choose M here:
217 the module will be called as acpi_ipmi.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218
219config ACPI_HOTPLUG_CPU
Adrian Bunkcbfc1ba2005-07-30 04:18:00 -0400220 bool
Kees Cookf756f282013-01-16 18:53:28 -0800221 depends on ACPI_PROCESSOR && HOTPLUG_CPU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222 select ACPI_CONTAINER
Adrian Bunkcbfc1ba2005-07-30 04:18:00 -0400223 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224
Shaohua Li8e0af512009-07-27 18:11:02 -0400225config ACPI_PROCESSOR_AGGREGATOR
226 tristate "Processor Aggregator"
227 depends on ACPI_PROCESSOR
Len Brownd91f79e2009-09-27 02:35:55 -0400228 depends on X86
Shaohua Li8e0af512009-07-27 18:11:02 -0400229 help
230 ACPI 4.0 defines processor Aggregator, which enables OS to perform
Jiri Slabyc4c4e2a2009-10-09 15:53:24 +0200231 specific processor configuration and control that applies to all
Shaohua Li8e0af512009-07-27 18:11:02 -0400232 processors in the platform. Currently only logical processor idling
233 is defined, which is to reduce power consumption. This driver
Jiri Slabyc4c4e2a2009-10-09 15:53:24 +0200234 supports the new device.
Shaohua Li8e0af512009-07-27 18:11:02 -0400235
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236config ACPI_THERMAL
237 tristate "Thermal Zone"
238 depends on ACPI_PROCESSOR
Zhang Rui3f655ef2008-01-17 15:51:11 +0800239 select THERMAL
Len Brown07fefe42005-08-25 12:22:04 -0400240 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700242 This driver supports ACPI thermal zones. Most mobile and
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243 some desktop systems support ACPI thermal zones. It is HIGHLY
244 recommended that this option be enabled, as your processor(s)
245 may be damaged without it.
246
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700247 To compile this driver as a module, choose M here:
248 the module will be called thermal.
249
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250config ACPI_NUMA
251 bool "NUMA support"
252 depends on NUMA
Yasunori Goto762834e2006-06-23 02:03:19 -0700253 depends on (X86 || IA64)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254 default y if IA64_GENERIC || IA64_SGI_SN2
255
Randy Dunlap7ce95732008-02-22 11:25:04 -0800256config ACPI_CUSTOM_DSDT_FILE
257 string "Custom DSDT Table file to include"
258 default ""
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259 depends on !STANDALONE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260 help
Len Brownd89e9d62008-02-06 19:28:02 -0500261 This option supports a custom DSDT by linking it into the kernel.
262 See Documentation/acpi/dsdt-override.txt
263
Uwe Zeisbergerc30fe7f2006-03-24 18:23:14 +0100264 Enter the full path name to the file which includes the AmlCode
265 declaration.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266
Randy Dunlap7ce95732008-02-22 11:25:04 -0800267 If unsure, don't enter a file name.
268
269config ACPI_CUSTOM_DSDT
270 bool
271 default ACPI_CUSTOM_DSDT_FILE != ""
272
Thomas Renninger53aac442012-10-01 00:23:54 +0200273config ACPI_INITRD_TABLE_OVERRIDE
Thomas Renninger565d9562013-02-22 14:12:22 +0100274 bool "ACPI tables override via initrd"
275 depends on BLK_DEV_INITRD && X86
Thomas Renninger53aac442012-10-01 00:23:54 +0200276 default n
277 help
278 This option provides functionality to override arbitrary ACPI tables
279 via initrd. No functional change if no ACPI tables are passed via
280 initrd, therefore it's safe to say Y.
281 See Documentation/acpi/initrd_table_override.txt for details
282
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283config ACPI_DEBUG
284 bool "Debug Statements"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 default n
286 help
Bjorn Helgaasa0d84a92008-11-07 16:58:05 -0700287 The ACPI subsystem can produce debug output. Saying Y enables this
288 output and increases the kernel size by around 50K.
289
290 Use the acpi.debug_layer and acpi.debug_level kernel command-line
291 parameters documented in Documentation/acpi/debug.txt and
292 Documentation/kernel-parameters.txt to control the type and
293 amount of debug output.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294
Alex Chiang8344b562008-06-10 15:30:42 -0600295config ACPI_PCI_SLOT
Jiang Liuab1a2e02013-01-19 00:07:42 +0800296 bool "PCI slot detection driver"
Alex Chiang268a03a2009-06-17 19:03:57 -0600297 depends on SYSFS
Alex Chiang8344b562008-06-10 15:30:42 -0600298 default n
299 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700300 This driver creates entries in /sys/bus/pci/slots/ for all PCI
301 slots in the system. This can help correlate PCI bus addresses,
302 i.e., segment/bus/device/function tuples, with physical slots in
303 the system. If you are unsure, say N.
304
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305config X86_PM_TIMER
David Rientjes6a108a12011-01-20 14:44:16 -0800306 bool "Power Management Timer Support" if EXPERT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307 depends on X86
Len Brown07fefe42005-08-25 12:22:04 -0400308 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309 help
310 The Power Management Timer is available on all ACPI-capable,
311 in most cases even if ACPI is unusable or blacklisted.
312
Matt LaPlantec73a6682006-10-03 22:24:43 +0200313 This timing source is not affected by power management features
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314 like aggressive processor idling, throttling, frequency and/or
315 voltage scaling, unlike the commonly used Time Stamp Counter
316 (TSC) timing source.
317
Andi Kleene78256b2006-02-26 04:18:37 +0100318 You should nearly always say Y here because many modern
319 systems require this timer.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320
321config ACPI_CONTAINER
Linus Torvalds06991c22013-02-21 12:05:51 -0800322 bool "Container and Module Devices"
Paul Bolleea6a4582013-03-11 10:53:48 +0000323 default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU)
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700324 help
325 This driver supports ACPI Container and Module devices (IDs
326 ACPI0004, PNP0A05, and PNP0A06).
Keiichiro Tokunaga45b1b192005-03-02 00:00:00 -0500327
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700328 This helps support hotplug of nodes, CPUs, and memory.
329
330 To compile this driver as a module, choose M here:
331 the module will be called container.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332
333config ACPI_HOTPLUG_MEMORY
Rafael J. Wysocki0a347642013-03-03 23:18:03 +0100334 bool "Memory Hotplug"
Yasunori Gotobc02af92006-06-27 02:53:30 -0700335 depends on MEMORY_HOTPLUG
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700337 This driver supports ACPI memory hotplug. The driver
338 fields notifications on ACPI memory devices (PNP0C80),
339 which represent memory ranges that may be onlined or
340 offlined during runtime.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700342 If your hardware and firmware do not support adding or
343 removing memory devices at runtime, you need not enable
344 this driver.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700346 To compile this driver as a module, choose M here:
347 the module will be called acpi_memhotplug.
Rich Townsend3f86b832006-07-01 11:36:54 -0400348
Jiang Liuc1836192015-02-05 13:44:49 +0800349config ACPI_HOTPLUG_IOAPIC
350 bool
351 depends on PCI
352 depends on X86_IO_APIC
353 default y
354
Rich Townsend3f86b832006-07-01 11:36:54 -0400355config ACPI_SBS
Alexey Starikovskiy94f6c082007-09-26 19:43:48 +0400356 tristate "Smart Battery System"
Vladimir Lebedevb4150fc2007-03-19 17:45:50 +0300357 depends on X86
Zhang Rui1b3d4c32010-10-08 13:54:57 +0800358 select POWER_SUPPLY
Rich Townsend3f86b832006-07-01 11:36:54 -0400359 help
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700360 This driver supports the Smart Battery System, another
Alexey Starikovskiy94f6c082007-09-26 19:43:48 +0400361 type of access to battery information, found on some laptops.
Rich Townsend3f86b832006-07-01 11:36:54 -0400362
Bjorn Helgaas1c48aa32009-02-19 14:45:47 -0700363 To compile this driver as a module, choose M here:
364 the modules will be called sbs and sbshc.
365
Huang Ying801eab82010-05-18 14:35:17 +0800366config ACPI_HED
367 tristate "Hardware Error Device"
368 help
369 This driver supports the Hardware Error Device (PNP0C33),
370 which is used to report some hardware errors notified via
371 SCI, mainly the corrected errors.
372
Thomas Renninger526b4af2011-05-26 12:26:24 +0200373config ACPI_CUSTOM_METHOD
374 tristate "Allow ACPI methods to be inserted/replaced at run time"
375 depends on DEBUG_FS
376 default n
377 help
Justin P. Mattockbd1b2a52012-01-03 08:49:48 -0800378 This debug facility allows ACPI AML methods to be inserted and/or
Thomas Renninger526b4af2011-05-26 12:26:24 +0200379 replaced without rebooting the system. For details refer to:
380 Documentation/acpi/method-customizing.txt.
381
382 NOTE: This option is security sensitive, because it allows arbitrary
383 kernel memory to be written to by root (uid=0) users, allowing them
384 to bypass certain security measures (e.g. if root is not allowed to
385 load additional kernel modules after boot, this feature may be used
386 to override that restriction).
387
Matthew Garrettd1ff4b12012-01-31 13:19:20 -0500388config ACPI_BGRT
Josh Triplett2223af32012-09-28 17:57:05 -0700389 bool "Boottime Graphics Resource Table support"
Tony Lucke66cd532013-04-03 13:17:20 +0200390 depends on EFI && X86
Matthew Garrettd1ff4b12012-01-31 13:19:20 -0500391 help
392 This driver adds support for exposing the ACPI Boottime Graphics
393 Resource Table, which allows the operating system to obtain
394 data from the firmware boot splash. It will appear under
395 /sys/firmware/acpi/bgrt/ .
396
Al Stoneaf1ae782014-01-17 11:51:30 -0700397config ACPI_REDUCED_HARDWARE_ONLY
398 bool "Hardware-reduced ACPI support only" if EXPERT
399 def_bool n
Al Stoneaf1ae782014-01-17 11:51:30 -0700400 help
Hanjun Guo99a33ff2014-11-14 17:44:07 +0800401 This config item changes the way the ACPI code is built. When this
402 option is selected, the kernel will use a specialized version of
403 ACPICA that ONLY supports the ACPI "reduced hardware" mode. The
404 resulting kernel will be smaller but it will also be restricted to
405 running in ACPI reduced hardware mode ONLY.
Al Stoneaf1ae782014-01-17 11:51:30 -0700406
Hanjun Guo99a33ff2014-11-14 17:44:07 +0800407 If you are unsure what to do, do not enable this option.
Al Stoneaf1ae782014-01-17 11:51:30 -0700408
Dan Williamsb94d5232015-05-19 22:54:31 -0400409config ACPI_NFIT
410 tristate "ACPI NVDIMM Firmware Interface Table (NFIT)"
411 depends on PHYS_ADDR_T_64BIT
412 depends on BLK_DEV
Ross Zwisler67a3e8f2015-08-27 13:14:20 -0600413 depends on ARCH_HAS_MMIO_FLUSH
Dan Williamsb94d5232015-05-19 22:54:31 -0400414 select LIBNVDIMM
415 help
416 Infrastructure to probe ACPI 6 compliant platforms for
417 NVDIMMs (NFIT) and register a libnvdimm device tree. In
418 addition to storage devices this also enables libnvdimm to pass
419 ACPI._DSM messages for platform/dimm configuration.
420
421 To compile this driver as a module, choose M here:
422 the module will be called nfit.
423
Dan Williams62232e452015-06-08 14:27:06 -0400424config ACPI_NFIT_DEBUG
425 bool "NFIT DSM debug"
426 depends on ACPI_NFIT
427 depends on DYNAMIC_DEBUG
428 default n
429 help
430 Enabling this option causes the nfit driver to dump the
431 input and output buffers of _DSM operations on the ACPI0012
432 device and its children. This can be very verbose, so leave
433 it disabled unless you are debugging a hardware / firmware
434 issue.
435
Huang Yinga643ce22010-05-18 14:35:12 +0800436source "drivers/acpi/apei/Kconfig"
437
Chen, Gong4b3db702013-10-21 14:29:25 -0700438config ACPI_EXTLOG
439 tristate "Extended Error Log support"
Luck, Tony9ebddac2013-11-08 14:03:33 -0800440 depends on X86_MCE && X86_LOCAL_APIC
Luck, Tony7ea6c6c2013-10-28 14:06:55 -0700441 select UEFI_CPER
Chen, Gong2dfb7d52014-06-17 22:33:07 -0400442 select RAS
Chen, Gong4b3db702013-10-21 14:29:25 -0700443 default n
444 help
445 Certain usages such as Predictive Failure Analysis (PFA) require
446 more information about the error than what can be described in
447 processor machine check banks. Most server processors log
448 additional information about the error in processor uncore
449 registers. Since the addresses and layout of these registers vary
450 widely from one processor to another, system software cannot
451 readily make use of them. To complicate matters further, some of
452 the additional error information cannot be constructed without
453 detailed knowledge about platform topology.
454
455 Enhanced MCA Logging allows firmware to provide additional error
456 information to system software, synchronous with MCE or CMCI. This
Chen, Gong2dfb7d52014-06-17 22:33:07 -0400457 driver adds support for that functionality with corresponding
458 tracepoint which carries that information to userspace.
Chen, Gong4b3db702013-10-21 14:29:25 -0700459
Aaron Lub1eea852014-11-24 17:21:54 +0800460menuconfig PMIC_OPREGION
461 bool "PMIC (Power Management Integrated Circuit) operation region support"
462 help
463 Select this option to enable support for ACPI operation
464 region of the PMIC chip. The operation region can be used
465 to control power rails and sensor reading/writing on the
466 PMIC chip.
467
468if PMIC_OPREGION
469config CRC_PMIC_OPREGION
470 bool "ACPI operation region support for CrystalCove PMIC"
471 depends on INTEL_SOC_PMIC
472 help
473 This config adds ACPI operation region support for CrystalCove PMIC.
474
Aaron Lud8139f62014-11-24 17:24:47 +0800475config XPOWER_PMIC_OPREGION
476 bool "ACPI operation region support for XPower AXP288 PMIC"
477 depends on AXP288_ADC = y
478 help
479 This config adds ACPI operation region support for XPower AXP288 PMIC.
480
Aaron Lub1eea852014-11-24 17:21:54 +0800481endif
482
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483endif # ACPI