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Commit | Line | Data |
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1da177e4 LT |
1 | # |
2 | # ACPI Configuration | |
3 | # | |
4 | ||
3f2c48c9 | 5 | menuconfig ACPI |
355ee5eb | 6 | bool "ACPI (Advanced Configuration and Power Interface) Support" |
1da177e4 | 7 | depends on !IA64_HP_SIM |
b6a02173 | 8 | depends on IA64 || X86 || (ARM64 && EXPERT) |
1300124f | 9 | depends on PCI |
243b66e7 | 10 | select PNP |
1da177e4 | 11 | default y |
1c48aa36 | 12 | help |
1da177e4 | 13 | Advanced Configuration and Power Interface (ACPI) support for |
1c48aa36 | 14 | Linux requires an ACPI-compliant platform (hardware/firmware), |
1da177e4 LT |
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 | |
1c48aa36 | 24 | are configured, ACPI is used. |
1da177e4 | 25 | |
1c48aa36 | 26 | The project home page for the Linux ACPI subsystem is here: |
aaf3d29f | 27 | <https://01.org/linux-acpi> |
1da177e4 LT |
28 | |
29 | Linux support for ACPI is based on Intel Corporation's ACPI | |
1c48aa36 BH |
30 | Component Architecture (ACPI CA). For more information on the |
31 | ACPI CA, see: | |
32 | <http://acpica.org/> | |
1da177e4 | 33 | |
c7f5220d HG |
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. | |
1c48aa36 | 39 | The specification is available at: |
1da177e4 | 40 | <http://www.acpi.info> |
c7f5220d | 41 | <http://www.uefi.org/acpi/specs> |
1da177e4 | 42 | |
3e11c3ce LB |
43 | if ACPI |
44 | ||
8a1664be GG |
45 | config ACPI_LEGACY_TABLES_LOOKUP |
46 | bool | |
47 | ||
46ba51ea HG |
48 | config ARCH_MIGHT_HAVE_ACPI_PDC |
49 | bool | |
50 | ||
d8f4f161 LP |
51 | config ACPI_GENERIC_GSI |
52 | bool | |
53 | ||
6e0a0ea1 GG |
54 | config ACPI_SYSTEM_POWER_STATES_SUPPORT |
55 | bool | |
56 | ||
d0562674 SS |
57 | config ACPI_CCA_REQUIRED |
58 | bool | |
59 | ||
673d5b43 LB |
60 | config ACPI_SLEEP |
61 | bool | |
5d1e072b | 62 | depends on SUSPEND || HIBERNATION |
6e0a0ea1 | 63 | depends on ACPI_SYSTEM_POWER_STATES_SUPPORT |
673d5b43 LB |
64 | default y |
65 | ||
e2a7c3d7 LT |
66 | config ACPI_PROCFS_POWER |
67 | bool "Deprecated power /proc/acpi directories" | |
bbf55ae1 | 68 | depends on X86 && PROC_FS |
e2a7c3d7 LT |
69 | 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 | |
3afcb96f | 79 | deleted in the future. |
e2a7c3d7 LT |
80 | |
81 | Say N to delete power /proc/acpi/ directories that have moved to /sys/ | |
82 | ||
18d78b64 RW |
83 | config 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 | ||
1195a098 TR |
103 | config ACPI_EC_DEBUGFS |
104 | tristate "EC read/write access through /sys/kernel/debug/ec" | |
500de3dd | 105 | default n |
1195a098 TR |
106 | help |
107 | Say N to disable Embedded Controller /sys/kernel/debug interface | |
108 | ||
500de3dd TR |
109 | Be aware that using this interface can confuse your Embedded |
110 | Controller in a way that a normal reboot is not enough. You then | |
25cb1bfd | 111 | have to power off your system, and remove the laptop battery for |
500de3dd | 112 | some seconds. |
1195a098 TR |
113 | An Embedded Controller typically is available on laptops and reads |
114 | sensor values like battery state and temperature. | |
500de3dd TR |
115 | 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. | |
1195a098 TR |
118 | 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 | ||
1da177e4 LT |
121 | config ACPI_AC |
122 | tristate "AC Adapter" | |
5527c8be | 123 | depends on X86 |
1b3d4c3b | 124 | select POWER_SUPPLY |
07fefe4c | 125 | default y |
1da177e4 | 126 | help |
1c48aa36 BH |
127 | 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 | |
07fefe4c | 129 | switch between A/C and battery, say Y. |
1da177e4 | 130 | |
1c48aa36 BH |
131 | To compile this driver as a module, choose M here: |
132 | the module will be called ac. | |
133 | ||
1da177e4 LT |
134 | config ACPI_BATTERY |
135 | tristate "Battery" | |
5527c8be | 136 | depends on X86 |
1b3d4c3b | 137 | select POWER_SUPPLY |
07fefe4c | 138 | default y |
1da177e4 LT |
139 | 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 | ||
1c48aa36 BH |
144 | To compile this driver as a module, choose M here: |
145 | the module will be called battery. | |
146 | ||
1da177e4 LT |
147 | config ACPI_BUTTON |
148 | tristate "Button" | |
c0968f0e | 149 | depends on INPUT |
07fefe4c | 150 | default y |
1da177e4 | 151 | help |
1c48aa36 | 152 | This driver handles events on the power, sleep, and lid buttons. |
7d13f94c KM |
153 | 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. | |
1c48aa36 BH |
156 | |
157 | To compile this driver as a module, choose M here: | |
158 | the module will be called button. | |
1da177e4 LT |
159 | |
160 | config ACPI_VIDEO | |
161 | tristate "Video" | |
9f380fc5 | 162 | depends on X86 && BACKLIGHT_CLASS_DEVICE |
03e2bf26 | 163 | depends on INPUT |
63c4ec90 | 164 | select THERMAL |
1da177e4 | 165 | help |
1c48aa36 | 166 | This driver implements the ACPI Extensions For Display Adapters |
1da177e4 | 167 | for integrated graphics devices on motherboard, as specified in |
1c48aa36 BH |
168 | 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. | |
1da177e4 LT |
174 | |
175 | config ACPI_FAN | |
176 | tristate "Fan" | |
d8054749 | 177 | depends on THERMAL |
07fefe4c | 178 | default y |
1da177e4 | 179 | help |
1c48aa36 | 180 | This driver supports ACPI fan devices, allowing user-mode |
1da177e4 LT |
181 | applications to perform basic fan control (on, off, status). |
182 | ||
1c48aa36 BH |
183 | To compile this driver as a module, choose M here: |
184 | the module will be called fan. | |
185 | ||
c8f7a62c | 186 | config ACPI_DOCK |
898b054f | 187 | bool "Dock" |
c8f7a62c | 188 | help |
1c48aa36 BH |
189 | This driver supports ACPI-controlled docking stations and removable |
190 | drive bays such as the IBM Ultrabay and the Dell Module Bay. | |
01b57e73 | 191 | |
239708a3 AC |
192 | config ACPI_CPU_FREQ_PSS |
193 | bool | |
194 | select THERMAL | |
195 | ||
1da177e4 LT |
196 | config ACPI_PROCESSOR |
197 | tristate "Processor" | |
b6a02173 | 198 | depends on X86 || IA64 |
239708a3 AC |
199 | select CPU_IDLE |
200 | select ACPI_CPU_FREQ_PSS | |
07fefe4c | 201 | default y |
1da177e4 | 202 | help |
239708a3 AC |
203 | This driver adds support for the ACPI Processor package. It is required |
204 | by several flavors of cpufreq performance-state, thermal, throttling and | |
205 | idle drivers. | |
1c48aa36 BH |
206 | |
207 | To compile this driver as a module, choose M here: | |
208 | the module will be called processor. | |
4b88e330 | 209 | |
e92b297c ZY |
210 | config ACPI_IPMI |
211 | tristate "IPMI" | |
4b88e330 | 212 | depends on IPMI_SI |
e92b297c ZY |
213 | default n |
214 | help | |
215 | This driver enables the ACPI to access the BMC controller. And it | |
216 | uses the IPMI request/response message to communicate with BMC | |
217 | controller, which can be found on on the server. | |
218 | ||
219 | To compile this driver as a module, choose M here: | |
220 | the module will be called as acpi_ipmi. | |
1da177e4 LT |
221 | |
222 | config ACPI_HOTPLUG_CPU | |
cbfc1bae | 223 | bool |
f756f28b | 224 | depends on ACPI_PROCESSOR && HOTPLUG_CPU |
1da177e4 | 225 | select ACPI_CONTAINER |
cbfc1bae | 226 | default y |
1da177e4 | 227 | |
8e0af514 SL |
228 | config ACPI_PROCESSOR_AGGREGATOR |
229 | tristate "Processor Aggregator" | |
230 | depends on ACPI_PROCESSOR | |
d91f79eb | 231 | depends on X86 |
8e0af514 SL |
232 | help |
233 | ACPI 4.0 defines processor Aggregator, which enables OS to perform | |
c4c4e2a5 | 234 | specific processor configuration and control that applies to all |
8e0af514 SL |
235 | processors in the platform. Currently only logical processor idling |
236 | is defined, which is to reduce power consumption. This driver | |
c4c4e2a5 | 237 | supports the new device. |
8e0af514 | 238 | |
1da177e4 LT |
239 | config ACPI_THERMAL |
240 | tristate "Thermal Zone" | |
241 | depends on ACPI_PROCESSOR | |
3f655ef8 | 242 | select THERMAL |
07fefe4c | 243 | default y |
1da177e4 | 244 | help |
1c48aa36 | 245 | This driver supports ACPI thermal zones. Most mobile and |
1da177e4 LT |
246 | some desktop systems support ACPI thermal zones. It is HIGHLY |
247 | recommended that this option be enabled, as your processor(s) | |
248 | may be damaged without it. | |
249 | ||
1c48aa36 BH |
250 | To compile this driver as a module, choose M here: |
251 | the module will be called thermal. | |
252 | ||
1da177e4 LT |
253 | config ACPI_NUMA |
254 | bool "NUMA support" | |
255 | depends on NUMA | |
762834e8 | 256 | depends on (X86 || IA64) |
1da177e4 LT |
257 | default y if IA64_GENERIC || IA64_SGI_SN2 |
258 | ||
7ce9573e RD |
259 | config ACPI_CUSTOM_DSDT_FILE |
260 | string "Custom DSDT Table file to include" | |
261 | default "" | |
1da177e4 | 262 | depends on !STANDALONE |
1da177e4 | 263 | help |
d89e9d6b LB |
264 | This option supports a custom DSDT by linking it into the kernel. |
265 | See Documentation/acpi/dsdt-override.txt | |
266 | ||
c30fe7f7 UZ |
267 | Enter the full path name to the file which includes the AmlCode |
268 | declaration. | |
1da177e4 | 269 | |
7ce9573e RD |
270 | If unsure, don't enter a file name. |
271 | ||
272 | config ACPI_CUSTOM_DSDT | |
273 | bool | |
274 | default ACPI_CUSTOM_DSDT_FILE != "" | |
275 | ||
53aac44c | 276 | config ACPI_INITRD_TABLE_OVERRIDE |
565d956a TR |
277 | bool "ACPI tables override via initrd" |
278 | depends on BLK_DEV_INITRD && X86 | |
53aac44c TR |
279 | default n |
280 | help | |
281 | This option provides functionality to override arbitrary ACPI tables | |
282 | via initrd. No functional change if no ACPI tables are passed via | |
283 | initrd, therefore it's safe to say Y. | |
284 | See Documentation/acpi/initrd_table_override.txt for details | |
285 | ||
1da177e4 LT |
286 | config ACPI_DEBUG |
287 | bool "Debug Statements" | |
1da177e4 LT |
288 | default n |
289 | help | |
a0d84a92 BH |
290 | The ACPI subsystem can produce debug output. Saying Y enables this |
291 | output and increases the kernel size by around 50K. | |
292 | ||
293 | Use the acpi.debug_layer and acpi.debug_level kernel command-line | |
294 | parameters documented in Documentation/acpi/debug.txt and | |
295 | Documentation/kernel-parameters.txt to control the type and | |
296 | amount of debug output. | |
1da177e4 | 297 | |
8344b568 | 298 | config ACPI_PCI_SLOT |
ab1a2e03 | 299 | bool "PCI slot detection driver" |
268a03a4 | 300 | depends on SYSFS |
8344b568 AC |
301 | default n |
302 | help | |
1c48aa36 BH |
303 | This driver creates entries in /sys/bus/pci/slots/ for all PCI |
304 | slots in the system. This can help correlate PCI bus addresses, | |
305 | i.e., segment/bus/device/function tuples, with physical slots in | |
306 | the system. If you are unsure, say N. | |
307 | ||
1da177e4 | 308 | config X86_PM_TIMER |
6a108a14 | 309 | bool "Power Management Timer Support" if EXPERT |
1da177e4 | 310 | depends on X86 |
07fefe4c | 311 | default y |
1da177e4 LT |
312 | help |
313 | The Power Management Timer is available on all ACPI-capable, | |
314 | in most cases even if ACPI is unusable or blacklisted. | |
315 | ||
c73a668c | 316 | This timing source is not affected by power management features |
1da177e4 LT |
317 | like aggressive processor idling, throttling, frequency and/or |
318 | voltage scaling, unlike the commonly used Time Stamp Counter | |
319 | (TSC) timing source. | |
320 | ||
e78256b8 AK |
321 | You should nearly always say Y here because many modern |
322 | systems require this timer. | |
1da177e4 LT |
323 | |
324 | config ACPI_CONTAINER | |
06991c28 | 325 | bool "Container and Module Devices" |
ea6a4581 | 326 | default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU) |
1c48aa36 BH |
327 | help |
328 | This driver supports ACPI Container and Module devices (IDs | |
329 | ACPI0004, PNP0A05, and PNP0A06). | |
45b1b196 | 330 | |
1c48aa36 BH |
331 | This helps support hotplug of nodes, CPUs, and memory. |
332 | ||
333 | To compile this driver as a module, choose M here: | |
334 | the module will be called container. | |
1da177e4 LT |
335 | |
336 | config ACPI_HOTPLUG_MEMORY | |
0a347644 | 337 | bool "Memory Hotplug" |
bc02af93 | 338 | depends on MEMORY_HOTPLUG |
1da177e4 | 339 | help |
1c48aa36 BH |
340 | This driver supports ACPI memory hotplug. The driver |
341 | fields notifications on ACPI memory devices (PNP0C80), | |
342 | which represent memory ranges that may be onlined or | |
343 | offlined during runtime. | |
1da177e4 | 344 | |
1c48aa36 BH |
345 | If your hardware and firmware do not support adding or |
346 | removing memory devices at runtime, you need not enable | |
347 | this driver. | |
1da177e4 | 348 | |
1c48aa36 BH |
349 | To compile this driver as a module, choose M here: |
350 | the module will be called acpi_memhotplug. | |
3f86b832 | 351 | |
c183619b JL |
352 | config ACPI_HOTPLUG_IOAPIC |
353 | bool | |
354 | depends on PCI | |
355 | depends on X86_IO_APIC | |
356 | default y | |
357 | ||
3f86b832 | 358 | config ACPI_SBS |
94f6c086 | 359 | tristate "Smart Battery System" |
b4150fc4 | 360 | depends on X86 |
1b3d4c3b | 361 | select POWER_SUPPLY |
3f86b832 | 362 | help |
1c48aa36 | 363 | This driver supports the Smart Battery System, another |
94f6c086 | 364 | type of access to battery information, found on some laptops. |
3f86b832 | 365 | |
1c48aa36 BH |
366 | To compile this driver as a module, choose M here: |
367 | the modules will be called sbs and sbshc. | |
368 | ||
801eab81 HY |
369 | config ACPI_HED |
370 | tristate "Hardware Error Device" | |
371 | help | |
372 | This driver supports the Hardware Error Device (PNP0C33), | |
373 | which is used to report some hardware errors notified via | |
374 | SCI, mainly the corrected errors. | |
375 | ||
526b4af4 TR |
376 | config ACPI_CUSTOM_METHOD |
377 | tristate "Allow ACPI methods to be inserted/replaced at run time" | |
378 | depends on DEBUG_FS | |
379 | default n | |
380 | help | |
bd1b2a55 | 381 | This debug facility allows ACPI AML methods to be inserted and/or |
526b4af4 TR |
382 | replaced without rebooting the system. For details refer to: |
383 | Documentation/acpi/method-customizing.txt. | |
384 | ||
385 | NOTE: This option is security sensitive, because it allows arbitrary | |
386 | kernel memory to be written to by root (uid=0) users, allowing them | |
387 | to bypass certain security measures (e.g. if root is not allowed to | |
388 | load additional kernel modules after boot, this feature may be used | |
389 | to override that restriction). | |
390 | ||
d1ff4b1c | 391 | config ACPI_BGRT |
2223af38 | 392 | bool "Boottime Graphics Resource Table support" |
e66cd537 | 393 | depends on EFI && X86 |
d1ff4b1c MG |
394 | help |
395 | This driver adds support for exposing the ACPI Boottime Graphics | |
396 | Resource Table, which allows the operating system to obtain | |
397 | data from the firmware boot splash. It will appear under | |
398 | /sys/firmware/acpi/bgrt/ . | |
399 | ||
af1ae78a AS |
400 | config ACPI_REDUCED_HARDWARE_ONLY |
401 | bool "Hardware-reduced ACPI support only" if EXPERT | |
402 | def_bool n | |
af1ae78a | 403 | help |
99a33ffc HG |
404 | This config item changes the way the ACPI code is built. When this |
405 | option is selected, the kernel will use a specialized version of | |
406 | ACPICA that ONLY supports the ACPI "reduced hardware" mode. The | |
407 | resulting kernel will be smaller but it will also be restricted to | |
408 | running in ACPI reduced hardware mode ONLY. | |
af1ae78a | 409 | |
99a33ffc | 410 | If you are unsure what to do, do not enable this option. |
af1ae78a | 411 | |
b94d5230 DW |
412 | config ACPI_NFIT |
413 | tristate "ACPI NVDIMM Firmware Interface Table (NFIT)" | |
414 | depends on PHYS_ADDR_T_64BIT | |
415 | depends on BLK_DEV | |
416 | select LIBNVDIMM | |
417 | help | |
418 | Infrastructure to probe ACPI 6 compliant platforms for | |
419 | NVDIMMs (NFIT) and register a libnvdimm device tree. In | |
420 | addition to storage devices this also enables libnvdimm to pass | |
421 | ACPI._DSM messages for platform/dimm configuration. | |
422 | ||
423 | To compile this driver as a module, choose M here: | |
424 | the module will be called nfit. | |
425 | ||
62232e45 DW |
426 | config ACPI_NFIT_DEBUG |
427 | bool "NFIT DSM debug" | |
428 | depends on ACPI_NFIT | |
429 | depends on DYNAMIC_DEBUG | |
430 | default n | |
431 | help | |
432 | Enabling this option causes the nfit driver to dump the | |
433 | input and output buffers of _DSM operations on the ACPI0012 | |
434 | device and its children. This can be very verbose, so leave | |
435 | it disabled unless you are debugging a hardware / firmware | |
436 | issue. | |
437 | ||
a643ce20 HY |
438 | source "drivers/acpi/apei/Kconfig" |
439 | ||
4b3db708 CG |
440 | config ACPI_EXTLOG |
441 | tristate "Extended Error Log support" | |
9ebddac7 | 442 | depends on X86_MCE && X86_LOCAL_APIC |
7ea6c6c1 | 443 | select UEFI_CPER |
2dfb7d51 | 444 | select RAS |
4b3db708 CG |
445 | default n |
446 | help | |
447 | Certain usages such as Predictive Failure Analysis (PFA) require | |
448 | more information about the error than what can be described in | |
449 | processor machine check banks. Most server processors log | |
450 | additional information about the error in processor uncore | |
451 | registers. Since the addresses and layout of these registers vary | |
452 | widely from one processor to another, system software cannot | |
453 | readily make use of them. To complicate matters further, some of | |
454 | the additional error information cannot be constructed without | |
455 | detailed knowledge about platform topology. | |
456 | ||
457 | Enhanced MCA Logging allows firmware to provide additional error | |
458 | information to system software, synchronous with MCE or CMCI. This | |
2dfb7d51 CG |
459 | driver adds support for that functionality with corresponding |
460 | tracepoint which carries that information to userspace. | |
4b3db708 | 461 | |
b1eea857 AL |
462 | menuconfig PMIC_OPREGION |
463 | bool "PMIC (Power Management Integrated Circuit) operation region support" | |
464 | help | |
465 | Select this option to enable support for ACPI operation | |
466 | region of the PMIC chip. The operation region can be used | |
467 | to control power rails and sensor reading/writing on the | |
468 | PMIC chip. | |
469 | ||
470 | if PMIC_OPREGION | |
471 | config CRC_PMIC_OPREGION | |
472 | bool "ACPI operation region support for CrystalCove PMIC" | |
473 | depends on INTEL_SOC_PMIC | |
474 | help | |
475 | This config adds ACPI operation region support for CrystalCove PMIC. | |
476 | ||
d8139f63 AL |
477 | config XPOWER_PMIC_OPREGION |
478 | bool "ACPI operation region support for XPower AXP288 PMIC" | |
479 | depends on AXP288_ADC = y | |
480 | help | |
481 | This config adds ACPI operation region support for XPower AXP288 PMIC. | |
482 | ||
b1eea857 AL |
483 | endif |
484 | ||
1da177e4 | 485 | endif # ACPI |