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b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | # |
3 | # ACPI Configuration | |
4 | # | |
5 | ||
f5d707ed AB |
6 | config ARCH_SUPPORTS_ACPI |
7 | bool | |
8 | ||
3f2c48c9 | 9 | menuconfig ACPI |
355ee5eb | 10 | bool "ACPI (Advanced Configuration and Power Interface) Support" |
2c870e61 | 11 | depends on ARCH_SUPPORTS_ACPI |
243b66e7 | 12 | select PNP |
2e61069b | 13 | select NLS |
2c870e61 | 14 | default y if X86 |
1c48aa36 | 15 | help |
1da177e4 | 16 | Advanced Configuration and Power Interface (ACPI) support for |
1c48aa36 | 17 | Linux requires an ACPI-compliant platform (hardware/firmware), |
1da177e4 LT |
18 | and assumes the presence of OS-directed configuration and power |
19 | management (OSPM) software. This option will enlarge your | |
20 | kernel by about 70K. | |
21 | ||
22 | Linux ACPI provides a robust functional replacement for several | |
23 | legacy configuration and power management interfaces, including | |
24 | the Plug-and-Play BIOS specification (PnP BIOS), the | |
25 | MultiProcessor Specification (MPS), and the Advanced Power | |
26 | Management (APM) specification. If both ACPI and APM support | |
1c48aa36 | 27 | are configured, ACPI is used. |
1da177e4 | 28 | |
1c48aa36 | 29 | The project home page for the Linux ACPI subsystem is here: |
aaf3d29f | 30 | <https://01.org/linux-acpi> |
1da177e4 LT |
31 | |
32 | Linux support for ACPI is based on Intel Corporation's ACPI | |
1c48aa36 BH |
33 | Component Architecture (ACPI CA). For more information on the |
34 | ACPI CA, see: | |
35 | <http://acpica.org/> | |
1da177e4 | 36 | |
c7f5220d HG |
37 | ACPI is an open industry specification originally co-developed by |
38 | Hewlett-Packard, Intel, Microsoft, Phoenix, and Toshiba. Currently, | |
39 | it is developed by the ACPI Specification Working Group (ASWG) under | |
40 | the UEFI Forum and any UEFI member can join the ASWG and contribute | |
41 | to the ACPI specification. | |
1c48aa36 | 42 | The specification is available at: |
1da177e4 | 43 | <http://www.acpi.info> |
c7f5220d | 44 | <http://www.uefi.org/acpi/specs> |
1da177e4 | 45 | |
3e11c3ce LB |
46 | if ACPI |
47 | ||
8a1664be GG |
48 | config ACPI_LEGACY_TABLES_LOOKUP |
49 | bool | |
50 | ||
46ba51ea HG |
51 | config ARCH_MIGHT_HAVE_ACPI_PDC |
52 | bool | |
53 | ||
d8f4f161 LP |
54 | config ACPI_GENERIC_GSI |
55 | bool | |
56 | ||
6e0a0ea1 GG |
57 | config ACPI_SYSTEM_POWER_STATES_SUPPORT |
58 | bool | |
59 | ||
d0562674 SS |
60 | config ACPI_CCA_REQUIRED |
61 | bool | |
62 | ||
4d946f79 | 63 | config ACPI_DEBUGGER |
8cfb0cdf | 64 | bool "AML debugger interface" |
4d946f79 LZ |
65 | select ACPI_DEBUG |
66 | help | |
836d0830 LZ |
67 | Enable in-kernel debugging of AML facilities: statistics, |
68 | internal object dump, single step control method execution. | |
4d946f79 LZ |
69 | This is still under development, currently enabling this only |
70 | results in the compilation of the ACPICA debugger files. | |
71 | ||
836d0830 LZ |
72 | if ACPI_DEBUGGER |
73 | ||
74 | config ACPI_DEBUGGER_USER | |
75 | tristate "Userspace debugger accessiblity" | |
76 | depends on DEBUG_FS | |
77 | help | |
78 | Export /sys/kernel/debug/acpi/acpidbg for userspace utilities | |
79 | to access the debugger functionalities. | |
80 | ||
81 | endif | |
82 | ||
ad1696f6 | 83 | config ACPI_SPCR_TABLE |
0231d000 PB |
84 | bool "ACPI Serial Port Console Redirection Support" |
85 | default y if X86 | |
86 | help | |
87 | Enable support for Serial Port Console Redirection (SPCR) Table. | |
88 | This table provides information about the configuration of the | |
89 | earlycon console. | |
ad1696f6 | 90 | |
eeb2d80d SP |
91 | config ACPI_LPIT |
92 | bool | |
93 | depends on X86_64 | |
94 | default y | |
95 | ||
673d5b43 LB |
96 | config ACPI_SLEEP |
97 | bool | |
5d1e072b | 98 | depends on SUSPEND || HIBERNATION |
6e0a0ea1 | 99 | depends on ACPI_SYSTEM_POWER_STATES_SUPPORT |
673d5b43 LB |
100 | default y |
101 | ||
e2a7c3d7 LT |
102 | config ACPI_PROCFS_POWER |
103 | bool "Deprecated power /proc/acpi directories" | |
bbf55ae1 | 104 | depends on X86 && PROC_FS |
e2a7c3d7 LT |
105 | help |
106 | For backwards compatibility, this option allows | |
107 | deprecated power /proc/acpi/ directories to exist, even when | |
108 | they have been replaced by functions in /sys. | |
109 | The deprecated directories (and their replacements) include: | |
7e46b32b RD |
110 | /proc/acpi/battery/* (/sys/class/power_supply/*) and |
111 | /proc/acpi/ac_adapter/* (sys/class/power_supply/*). | |
e2a7c3d7 | 112 | This option has no effect on /proc/acpi/ directories |
7e46b32b | 113 | and functions which do not yet exist in /sys. |
e2a7c3d7 | 114 | This option, together with the proc directories, will be |
3afcb96f | 115 | deleted in the future. |
e2a7c3d7 | 116 | |
7e46b32b | 117 | Say N to delete power /proc/acpi/ directories that have moved to /sys. |
e2a7c3d7 | 118 | |
18d78b64 | 119 | config ACPI_REV_OVERRIDE_POSSIBLE |
9165dabb | 120 | bool "Allow supported ACPI revision to be overridden" |
18d78b64 RW |
121 | depends on X86 |
122 | default y | |
123 | help | |
124 | The platform firmware on some systems expects Linux to return "5" as | |
125 | the supported ACPI revision which makes it expose system configuration | |
126 | information in a special way. | |
127 | ||
128 | For example, based on what ACPI exports as the supported revision, | |
129 | Dell XPS 13 (2015) configures its audio device to either work in HDA | |
130 | mode or in I2S mode, where the former is supposed to be used on Linux | |
131 | until the latter is fully supported (in the kernel as well as in user | |
132 | space). | |
133 | ||
134 | This option enables a DMI-based quirk for the above Dell machine (so | |
135 | that HDA audio is exposed by the platform firmware to the kernel) and | |
136 | makes it possible to force the kernel to return "5" as the supported | |
137 | ACPI revision via the "acpi_rev_override" command line switch. | |
138 | ||
1195a098 TR |
139 | config ACPI_EC_DEBUGFS |
140 | tristate "EC read/write access through /sys/kernel/debug/ec" | |
1195a098 TR |
141 | help |
142 | Say N to disable Embedded Controller /sys/kernel/debug interface | |
143 | ||
500de3dd TR |
144 | Be aware that using this interface can confuse your Embedded |
145 | Controller in a way that a normal reboot is not enough. You then | |
25cb1bfd | 146 | have to power off your system, and remove the laptop battery for |
500de3dd | 147 | some seconds. |
1195a098 TR |
148 | An Embedded Controller typically is available on laptops and reads |
149 | sensor values like battery state and temperature. | |
500de3dd TR |
150 | The kernel accesses the EC through ACPI parsed code provided by BIOS |
151 | tables. This option allows to access the EC directly without ACPI | |
152 | code being involved. | |
1195a098 TR |
153 | Thus this option is a debug option that helps to write ACPI drivers |
154 | and can be used to identify ACPI code or EC firmware bugs. | |
155 | ||
1da177e4 LT |
156 | config ACPI_AC |
157 | tristate "AC Adapter" | |
1b3d4c3b | 158 | select POWER_SUPPLY |
07fefe4c | 159 | default y |
1da177e4 | 160 | help |
1c48aa36 BH |
161 | This driver supports the AC Adapter object, which indicates |
162 | whether a system is on AC or not. If you have a system that can | |
07fefe4c | 163 | switch between A/C and battery, say Y. |
1da177e4 | 164 | |
1c48aa36 BH |
165 | To compile this driver as a module, choose M here: |
166 | the module will be called ac. | |
167 | ||
1da177e4 LT |
168 | config ACPI_BATTERY |
169 | tristate "Battery" | |
1b3d4c3b | 170 | select POWER_SUPPLY |
07fefe4c | 171 | default y |
1da177e4 LT |
172 | help |
173 | This driver adds support for battery information through | |
174 | /proc/acpi/battery. If you have a mobile system with a battery, | |
175 | say Y. | |
176 | ||
1c48aa36 BH |
177 | To compile this driver as a module, choose M here: |
178 | the module will be called battery. | |
179 | ||
1da177e4 LT |
180 | config ACPI_BUTTON |
181 | tristate "Button" | |
c0968f0e | 182 | depends on INPUT |
07fefe4c | 183 | default y |
1da177e4 | 184 | help |
1c48aa36 | 185 | This driver handles events on the power, sleep, and lid buttons. |
7d13f94c KM |
186 | A daemon reads events from input devices or via netlink and |
187 | performs user-defined actions such as shutting down the system. | |
188 | This is necessary for software-controlled poweroff. | |
1c48aa36 BH |
189 | |
190 | To compile this driver as a module, choose M here: | |
191 | the module will be called button. | |
1da177e4 LT |
192 | |
193 | config ACPI_VIDEO | |
194 | tristate "Video" | |
9f380fc5 | 195 | depends on X86 && BACKLIGHT_CLASS_DEVICE |
03e2bf26 | 196 | depends on INPUT |
63c4ec90 | 197 | select THERMAL |
1da177e4 | 198 | help |
1c48aa36 | 199 | This driver implements the ACPI Extensions For Display Adapters |
1da177e4 | 200 | for integrated graphics devices on motherboard, as specified in |
1c48aa36 BH |
201 | ACPI 2.0 Specification, Appendix B. This supports basic operations |
202 | such as defining the video POST device, retrieving EDID information, | |
203 | and setting up a video output. | |
204 | ||
205 | To compile this driver as a module, choose M here: | |
206 | the module will be called video. | |
1da177e4 LT |
207 | |
208 | config ACPI_FAN | |
209 | tristate "Fan" | |
d8054749 | 210 | depends on THERMAL |
07fefe4c | 211 | default y |
1da177e4 | 212 | help |
1c48aa36 | 213 | This driver supports ACPI fan devices, allowing user-mode |
1da177e4 LT |
214 | applications to perform basic fan control (on, off, status). |
215 | ||
1c48aa36 BH |
216 | To compile this driver as a module, choose M here: |
217 | the module will be called fan. | |
218 | ||
95c513ec RW |
219 | config ACPI_TAD |
220 | tristate "ACPI Time and Alarm (TAD) Device Support" | |
221 | depends on SYSFS && PM_SLEEP | |
222 | help | |
223 | The ACPI Time and Alarm (TAD) device is an alternative to the Real | |
224 | Time Clock (RTC). Its wake timers allow the system to transition from | |
225 | the S3 (or optionally S4/S5) state to S0 state after a time period | |
226 | elapses. In comparison with the RTC Alarm, the TAD provides a larger | |
227 | scale of flexibility in the wake timers. The time capabilities of the | |
228 | TAD maintain the time of day information across platform power | |
229 | transitions, and keep track of time even when the platform is turned | |
230 | off. | |
231 | ||
c8f7a62c | 232 | config ACPI_DOCK |
898b054f | 233 | bool "Dock" |
c8f7a62c | 234 | help |
1c48aa36 BH |
235 | This driver supports ACPI-controlled docking stations and removable |
236 | drive bays such as the IBM Ultrabay and the Dell Module Bay. | |
01b57e73 | 237 | |
239708a3 AC |
238 | config ACPI_CPU_FREQ_PSS |
239 | bool | |
240 | select THERMAL | |
241 | ||
35ae7133 SH |
242 | config ACPI_PROCESSOR_CSTATE |
243 | def_bool y | |
244 | depends on IA64 || X86 | |
245 | ||
5f05586c AC |
246 | config ACPI_PROCESSOR_IDLE |
247 | bool | |
248 | select CPU_IDLE | |
249 | ||
935c760e TN |
250 | config ACPI_MCFG |
251 | bool | |
252 | ||
337aadff AC |
253 | config ACPI_CPPC_LIB |
254 | bool | |
255 | depends on ACPI_PROCESSOR | |
337aadff AC |
256 | select MAILBOX |
257 | select PCC | |
258 | help | |
259 | If this option is enabled, this file implements common functionality | |
260 | to parse CPPC tables as described in the ACPI 5.1+ spec. The | |
261 | routines implemented are meant to be used by other | |
262 | drivers to control CPU performance using CPPC semantics. | |
263 | If your platform does not support CPPC in firmware, | |
264 | leave this option disabled. | |
265 | ||
1da177e4 LT |
266 | config ACPI_PROCESSOR |
267 | tristate "Processor" | |
ad806ea6 | 268 | depends on X86 || IA64 || ARM64 |
8fc85c6a | 269 | select ACPI_PROCESSOR_IDLE |
ad806ea6 | 270 | select ACPI_CPU_FREQ_PSS if X86 || IA64 |
07fefe4c | 271 | default y |
1da177e4 | 272 | help |
239708a3 AC |
273 | This driver adds support for the ACPI Processor package. It is required |
274 | by several flavors of cpufreq performance-state, thermal, throttling and | |
275 | idle drivers. | |
1c48aa36 BH |
276 | |
277 | To compile this driver as a module, choose M here: | |
278 | the module will be called processor. | |
4b88e330 | 279 | |
e92b297c ZY |
280 | config ACPI_IPMI |
281 | tristate "IPMI" | |
50121beb | 282 | depends on IPMI_HANDLER |
e92b297c ZY |
283 | help |
284 | This driver enables the ACPI to access the BMC controller. And it | |
285 | uses the IPMI request/response message to communicate with BMC | |
286 | controller, which can be found on on the server. | |
287 | ||
288 | To compile this driver as a module, choose M here: | |
289 | the module will be called as acpi_ipmi. | |
1da177e4 LT |
290 | |
291 | config ACPI_HOTPLUG_CPU | |
cbfc1bae | 292 | bool |
f756f28b | 293 | depends on ACPI_PROCESSOR && HOTPLUG_CPU |
1da177e4 | 294 | select ACPI_CONTAINER |
cbfc1bae | 295 | default y |
1da177e4 | 296 | |
8e0af514 SL |
297 | config ACPI_PROCESSOR_AGGREGATOR |
298 | tristate "Processor Aggregator" | |
299 | depends on ACPI_PROCESSOR | |
d91f79eb | 300 | depends on X86 |
8e0af514 SL |
301 | help |
302 | ACPI 4.0 defines processor Aggregator, which enables OS to perform | |
c4c4e2a5 | 303 | specific processor configuration and control that applies to all |
8e0af514 SL |
304 | processors in the platform. Currently only logical processor idling |
305 | is defined, which is to reduce power consumption. This driver | |
c4c4e2a5 | 306 | supports the new device. |
8e0af514 | 307 | |
1da177e4 LT |
308 | config ACPI_THERMAL |
309 | tristate "Thermal Zone" | |
310 | depends on ACPI_PROCESSOR | |
3f655ef8 | 311 | select THERMAL |
07fefe4c | 312 | default y |
1da177e4 | 313 | help |
1c48aa36 | 314 | This driver supports ACPI thermal zones. Most mobile and |
1da177e4 LT |
315 | some desktop systems support ACPI thermal zones. It is HIGHLY |
316 | recommended that this option be enabled, as your processor(s) | |
317 | may be damaged without it. | |
318 | ||
1c48aa36 BH |
319 | To compile this driver as a module, choose M here: |
320 | the module will be called thermal. | |
321 | ||
1da177e4 LT |
322 | config ACPI_NUMA |
323 | bool "NUMA support" | |
324 | depends on NUMA | |
4bac6fa7 | 325 | depends on (X86 || IA64 || ARM64) |
df41017e | 326 | default y if IA64 || ARM64 |
1da177e4 | 327 | |
7ce9573e RD |
328 | config ACPI_CUSTOM_DSDT_FILE |
329 | string "Custom DSDT Table file to include" | |
330 | default "" | |
1da177e4 | 331 | depends on !STANDALONE |
1da177e4 | 332 | help |
d89e9d6b | 333 | This option supports a custom DSDT by linking it into the kernel. |
cb1aaebe | 334 | See Documentation/admin-guide/acpi/dsdt-override.rst |
d89e9d6b | 335 | |
c30fe7f7 | 336 | Enter the full path name to the file which includes the AmlCode |
82e4eb4e | 337 | or dsdt_aml_code declaration. |
1da177e4 | 338 | |
7ce9573e RD |
339 | If unsure, don't enter a file name. |
340 | ||
341 | config ACPI_CUSTOM_DSDT | |
342 | bool | |
343 | default ACPI_CUSTOM_DSDT_FILE != "" | |
344 | ||
91dda51a AM |
345 | config ARCH_HAS_ACPI_TABLE_UPGRADE |
346 | def_bool n | |
347 | ||
5d881327 LZ |
348 | config ACPI_TABLE_UPGRADE |
349 | bool "Allow upgrading ACPI tables via initrd" | |
91dda51a | 350 | depends on BLK_DEV_INITRD && ARCH_HAS_ACPI_TABLE_UPGRADE |
5d881327 | 351 | default y |
53aac44c | 352 | help |
5d881327 | 353 | This option provides functionality to upgrade arbitrary ACPI tables |
53aac44c TR |
354 | via initrd. No functional change if no ACPI tables are passed via |
355 | initrd, therefore it's safe to say Y. | |
cb1aaebe | 356 | See Documentation/admin-guide/acpi/initrd_table_override.rst for details |
53aac44c | 357 | |
98a455d9 SY |
358 | config ACPI_TABLE_OVERRIDE_VIA_BUILTIN_INITRD |
359 | bool "Override ACPI tables from built-in initrd" | |
360 | depends on ACPI_TABLE_UPGRADE | |
361 | depends on INITRAMFS_SOURCE!="" && INITRAMFS_COMPRESSION="" | |
362 | help | |
363 | This option provides functionality to override arbitrary ACPI tables | |
364 | from built-in uncompressed initrd. | |
365 | ||
cb1aaebe | 366 | See Documentation/admin-guide/acpi/initrd_table_override.rst for details |
98a455d9 | 367 | |
1da177e4 LT |
368 | config ACPI_DEBUG |
369 | bool "Debug Statements" | |
1da177e4 | 370 | help |
a0d84a92 BH |
371 | The ACPI subsystem can produce debug output. Saying Y enables this |
372 | output and increases the kernel size by around 50K. | |
373 | ||
374 | Use the acpi.debug_layer and acpi.debug_level kernel command-line | |
cb1aaebe | 375 | parameters documented in Documentation/firmware-guide/acpi/debug.rst and |
8c27ceff | 376 | Documentation/admin-guide/kernel-parameters.rst to control the type and |
a0d84a92 | 377 | amount of debug output. |
1da177e4 | 378 | |
8344b568 | 379 | config ACPI_PCI_SLOT |
ab1a2e03 | 380 | bool "PCI slot detection driver" |
5c6a1177 | 381 | depends on SYSFS && PCI |
8344b568 | 382 | help |
1c48aa36 BH |
383 | This driver creates entries in /sys/bus/pci/slots/ for all PCI |
384 | slots in the system. This can help correlate PCI bus addresses, | |
385 | i.e., segment/bus/device/function tuples, with physical slots in | |
386 | the system. If you are unsure, say N. | |
387 | ||
1da177e4 | 388 | config ACPI_CONTAINER |
06991c28 | 389 | bool "Container and Module Devices" |
ea6a4581 | 390 | default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU) |
1c48aa36 BH |
391 | help |
392 | This driver supports ACPI Container and Module devices (IDs | |
393 | ACPI0004, PNP0A05, and PNP0A06). | |
45b1b196 | 394 | |
1c48aa36 BH |
395 | This helps support hotplug of nodes, CPUs, and memory. |
396 | ||
397 | To compile this driver as a module, choose M here: | |
398 | the module will be called container. | |
1da177e4 LT |
399 | |
400 | config ACPI_HOTPLUG_MEMORY | |
0a347644 | 401 | bool "Memory Hotplug" |
bc02af93 | 402 | depends on MEMORY_HOTPLUG |
1da177e4 | 403 | help |
1c48aa36 BH |
404 | This driver supports ACPI memory hotplug. The driver |
405 | fields notifications on ACPI memory devices (PNP0C80), | |
406 | which represent memory ranges that may be onlined or | |
407 | offlined during runtime. | |
1da177e4 | 408 | |
1c48aa36 BH |
409 | If your hardware and firmware do not support adding or |
410 | removing memory devices at runtime, you need not enable | |
411 | this driver. | |
1da177e4 | 412 | |
1c48aa36 BH |
413 | To compile this driver as a module, choose M here: |
414 | the module will be called acpi_memhotplug. | |
3f86b832 | 415 | |
c183619b JL |
416 | config ACPI_HOTPLUG_IOAPIC |
417 | bool | |
418 | depends on PCI | |
419 | depends on X86_IO_APIC | |
420 | default y | |
421 | ||
3f86b832 | 422 | config ACPI_SBS |
94f6c086 | 423 | tristate "Smart Battery System" |
b4150fc4 | 424 | depends on X86 |
1b3d4c3b | 425 | select POWER_SUPPLY |
3f86b832 | 426 | help |
1c48aa36 | 427 | This driver supports the Smart Battery System, another |
94f6c086 | 428 | type of access to battery information, found on some laptops. |
3f86b832 | 429 | |
1c48aa36 BH |
430 | To compile this driver as a module, choose M here: |
431 | the modules will be called sbs and sbshc. | |
432 | ||
801eab81 HY |
433 | config ACPI_HED |
434 | tristate "Hardware Error Device" | |
435 | help | |
436 | This driver supports the Hardware Error Device (PNP0C33), | |
437 | which is used to report some hardware errors notified via | |
438 | SCI, mainly the corrected errors. | |
439 | ||
526b4af4 TR |
440 | config ACPI_CUSTOM_METHOD |
441 | tristate "Allow ACPI methods to be inserted/replaced at run time" | |
442 | depends on DEBUG_FS | |
526b4af4 | 443 | help |
bd1b2a55 | 444 | This debug facility allows ACPI AML methods to be inserted and/or |
526b4af4 | 445 | replaced without rebooting the system. For details refer to: |
cb1aaebe | 446 | Documentation/firmware-guide/acpi/method-customizing.rst. |
526b4af4 TR |
447 | |
448 | NOTE: This option is security sensitive, because it allows arbitrary | |
449 | kernel memory to be written to by root (uid=0) users, allowing them | |
450 | to bypass certain security measures (e.g. if root is not allowed to | |
451 | load additional kernel modules after boot, this feature may be used | |
452 | to override that restriction). | |
453 | ||
d1ff4b1c | 454 | config ACPI_BGRT |
2223af38 | 455 | bool "Boottime Graphics Resource Table support" |
6e7300cf | 456 | depends on EFI && (X86 || ARM64) |
d1ff4b1c MG |
457 | help |
458 | This driver adds support for exposing the ACPI Boottime Graphics | |
459 | Resource Table, which allows the operating system to obtain | |
460 | data from the firmware boot splash. It will appear under | |
461 | /sys/firmware/acpi/bgrt/ . | |
462 | ||
af1ae78a AS |
463 | config ACPI_REDUCED_HARDWARE_ONLY |
464 | bool "Hardware-reduced ACPI support only" if EXPERT | |
465 | def_bool n | |
af1ae78a | 466 | help |
99a33ffc HG |
467 | This config item changes the way the ACPI code is built. When this |
468 | option is selected, the kernel will use a specialized version of | |
469 | ACPICA that ONLY supports the ACPI "reduced hardware" mode. The | |
470 | resulting kernel will be smaller but it will also be restricted to | |
471 | running in ACPI reduced hardware mode ONLY. | |
af1ae78a | 472 | |
99a33ffc | 473 | If you are unsure what to do, do not enable this option. |
af1ae78a | 474 | |
bdf97013 | 475 | source "drivers/acpi/nfit/Kconfig" |
3accf7ae | 476 | source "drivers/acpi/hmat/Kconfig" |
62232e45 | 477 | |
a643ce20 | 478 | source "drivers/acpi/apei/Kconfig" |
6256ebd5 | 479 | source "drivers/acpi/dptf/Kconfig" |
a643ce20 | 480 | |
058dfc76 MW |
481 | config ACPI_WATCHDOG |
482 | bool | |
483 | ||
4b3db708 CG |
484 | config ACPI_EXTLOG |
485 | tristate "Extended Error Log support" | |
9613916b | 486 | depends on X86_MCE && X86_LOCAL_APIC && EDAC |
7ea6c6c1 | 487 | select UEFI_CPER |
4b3db708 CG |
488 | help |
489 | Certain usages such as Predictive Failure Analysis (PFA) require | |
490 | more information about the error than what can be described in | |
491 | processor machine check banks. Most server processors log | |
492 | additional information about the error in processor uncore | |
493 | registers. Since the addresses and layout of these registers vary | |
494 | widely from one processor to another, system software cannot | |
495 | readily make use of them. To complicate matters further, some of | |
496 | the additional error information cannot be constructed without | |
497 | detailed knowledge about platform topology. | |
498 | ||
499 | Enhanced MCA Logging allows firmware to provide additional error | |
500 | information to system software, synchronous with MCE or CMCI. This | |
2dfb7d51 CG |
501 | driver adds support for that functionality with corresponding |
502 | tracepoint which carries that information to userspace. | |
4b3db708 | 503 | |
4cf841e3 TL |
504 | config ACPI_ADXL |
505 | bool | |
506 | ||
b1eea857 AL |
507 | menuconfig PMIC_OPREGION |
508 | bool "PMIC (Power Management Integrated Circuit) operation region support" | |
509 | help | |
510 | Select this option to enable support for ACPI operation | |
511 | region of the PMIC chip. The operation region can be used | |
512 | to control power rails and sensor reading/writing on the | |
513 | PMIC chip. | |
514 | ||
515 | if PMIC_OPREGION | |
516 | config CRC_PMIC_OPREGION | |
517 | bool "ACPI operation region support for CrystalCove PMIC" | |
518 | depends on INTEL_SOC_PMIC | |
519 | help | |
520 | This config adds ACPI operation region support for CrystalCove PMIC. | |
521 | ||
d8139f63 AL |
522 | config XPOWER_PMIC_OPREGION |
523 | bool "ACPI operation region support for XPower AXP288 PMIC" | |
017ce359 | 524 | depends on MFD_AXP20X_I2C && IOSF_MBI=y |
d8139f63 AL |
525 | help |
526 | This config adds ACPI operation region support for XPower AXP288 PMIC. | |
527 | ||
9b928c78 BG |
528 | config BXT_WC_PMIC_OPREGION |
529 | bool "ACPI operation region support for BXT WhiskeyCove PMIC" | |
b5238b41 | 530 | depends on INTEL_SOC_PMIC_BXTWC |
9b928c78 BG |
531 | help |
532 | This config adds ACPI operation region support for BXT WhiskeyCove PMIC. | |
533 | ||
ac2c4936 HG |
534 | config CHT_WC_PMIC_OPREGION |
535 | bool "ACPI operation region support for CHT Whiskey Cove PMIC" | |
536 | depends on INTEL_SOC_PMIC_CHTWC | |
537 | help | |
538 | This config adds ACPI operation region support for CHT Whiskey Cove PMIC. | |
539 | ||
31374972 TI |
540 | config CHT_DC_TI_PMIC_OPREGION |
541 | bool "ACPI operation region support for Dollar Cove TI PMIC" | |
542 | depends on INTEL_SOC_PMIC_CHTDC_TI | |
543 | help | |
544 | This config adds ACPI operation region support for Dollar Cove TI PMIC. | |
ac2c4936 | 545 | |
b1eea857 AL |
546 | endif |
547 | ||
0bf54fcd OP |
548 | config ACPI_CONFIGFS |
549 | tristate "ACPI configfs support" | |
550 | select CONFIGFS_FS | |
551 | help | |
552 | Select this option to enable support for ACPI configuration from | |
553 | userspace. The configurable ACPI groups will be visible under | |
554 | /config/acpi, assuming configfs is mounted under /config. | |
555 | ||
88ef16d8 TN |
556 | if ARM64 |
557 | source "drivers/acpi/arm64/Kconfig" | |
0ce82232 JL |
558 | |
559 | config ACPI_PPTT | |
560 | bool | |
88ef16d8 TN |
561 | endif |
562 | ||
e13452ac RM |
563 | config TPS68470_PMIC_OPREGION |
564 | bool "ACPI operation region support for TPS68470 PMIC" | |
565 | depends on MFD_TPS68470 | |
566 | help | |
567 | This config adds ACPI operation region support for TI TPS68470 PMIC. | |
568 | TPS68470 device is an advanced power management unit that powers | |
569 | a Compact Camera Module (CCM), generates clocks for image sensors, | |
570 | drives a dual LED for flash and incorporates two LED drivers for | |
571 | general purpose indicators. | |
572 | This driver enables ACPI operation region support control voltage | |
573 | regulators and clocks. | |
574 | ||
575 | This option is a bool as it provides an ACPI operation | |
576 | region, which must be available before any of the devices | |
577 | using this, are probed. | |
578 | ||
1da177e4 | 579 | endif # ACPI |
87e65d05 JK |
580 | |
581 | config X86_PM_TIMER | |
582 | bool "Power Management Timer Support" if EXPERT | |
583 | depends on X86 && (ACPI || JAILHOUSE_GUEST) | |
584 | default y | |
585 | help | |
586 | The Power Management Timer is available on all ACPI-capable, | |
587 | in most cases even if ACPI is unusable or blacklisted. | |
588 | ||
589 | This timing source is not affected by power management features | |
590 | like aggressive processor idling, throttling, frequency and/or | |
591 | voltage scaling, unlike the commonly used Time Stamp Counter | |
592 | (TSC) timing source. | |
593 | ||
594 | You should nearly always say Y here because many modern | |
595 | systems require this timer. |