Commit | Line | Data |
---|---|---|
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 |
46bcc6b1 | 8 | depends on IA64 || X86 || ARM64 |
1300124f | 9 | depends on PCI |
243b66e7 | 10 | select PNP |
6df795ff | 11 | default y if (IA64 || X86) |
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 | ||
4d946f79 | 60 | config ACPI_DEBUGGER |
8cfb0cdf | 61 | bool "AML debugger interface" |
4d946f79 LZ |
62 | select ACPI_DEBUG |
63 | help | |
836d0830 LZ |
64 | Enable in-kernel debugging of AML facilities: statistics, |
65 | internal object dump, single step control method execution. | |
4d946f79 LZ |
66 | This is still under development, currently enabling this only |
67 | results in the compilation of the ACPICA debugger files. | |
68 | ||
836d0830 LZ |
69 | if ACPI_DEBUGGER |
70 | ||
71 | config 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 | ||
78 | endif | |
79 | ||
673d5b43 LB |
80 | config ACPI_SLEEP |
81 | bool | |
5d1e072b | 82 | depends on SUSPEND || HIBERNATION |
6e0a0ea1 | 83 | depends on ACPI_SYSTEM_POWER_STATES_SUPPORT |
673d5b43 LB |
84 | default y |
85 | ||
e2a7c3d7 LT |
86 | config ACPI_PROCFS_POWER |
87 | bool "Deprecated power /proc/acpi directories" | |
bbf55ae1 | 88 | depends on X86 && PROC_FS |
e2a7c3d7 LT |
89 | 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 | |
3afcb96f | 99 | deleted in the future. |
e2a7c3d7 LT |
100 | |
101 | Say N to delete power /proc/acpi/ directories that have moved to /sys/ | |
102 | ||
18d78b64 RW |
103 | config 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 | ||
1195a098 TR |
123 | config ACPI_EC_DEBUGFS |
124 | tristate "EC read/write access through /sys/kernel/debug/ec" | |
500de3dd | 125 | default n |
1195a098 TR |
126 | help |
127 | Say N to disable Embedded Controller /sys/kernel/debug interface | |
128 | ||
500de3dd TR |
129 | Be aware that using this interface can confuse your Embedded |
130 | Controller in a way that a normal reboot is not enough. You then | |
25cb1bfd | 131 | have to power off your system, and remove the laptop battery for |
500de3dd | 132 | some seconds. |
1195a098 TR |
133 | An Embedded Controller typically is available on laptops and reads |
134 | sensor values like battery state and temperature. | |
500de3dd TR |
135 | 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. | |
1195a098 TR |
138 | 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 | ||
1da177e4 LT |
141 | config ACPI_AC |
142 | tristate "AC Adapter" | |
5527c8be | 143 | depends on X86 |
1b3d4c3b | 144 | select POWER_SUPPLY |
07fefe4c | 145 | default y |
1da177e4 | 146 | help |
1c48aa36 BH |
147 | 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 | |
07fefe4c | 149 | switch between A/C and battery, say Y. |
1da177e4 | 150 | |
1c48aa36 BH |
151 | To compile this driver as a module, choose M here: |
152 | the module will be called ac. | |
153 | ||
1da177e4 LT |
154 | config ACPI_BATTERY |
155 | tristate "Battery" | |
5527c8be | 156 | depends on X86 |
1b3d4c3b | 157 | select POWER_SUPPLY |
07fefe4c | 158 | default y |
1da177e4 LT |
159 | 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 | ||
1c48aa36 BH |
164 | To compile this driver as a module, choose M here: |
165 | the module will be called battery. | |
166 | ||
1da177e4 LT |
167 | config ACPI_BUTTON |
168 | tristate "Button" | |
c0968f0e | 169 | depends on INPUT |
07fefe4c | 170 | default y |
1da177e4 | 171 | help |
1c48aa36 | 172 | This driver handles events on the power, sleep, and lid buttons. |
7d13f94c KM |
173 | 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. | |
1c48aa36 BH |
176 | |
177 | To compile this driver as a module, choose M here: | |
178 | the module will be called button. | |
1da177e4 LT |
179 | |
180 | config ACPI_VIDEO | |
181 | tristate "Video" | |
9f380fc5 | 182 | depends on X86 && BACKLIGHT_CLASS_DEVICE |
03e2bf26 | 183 | depends on INPUT |
63c4ec90 | 184 | select THERMAL |
1da177e4 | 185 | help |
1c48aa36 | 186 | This driver implements the ACPI Extensions For Display Adapters |
1da177e4 | 187 | for integrated graphics devices on motherboard, as specified in |
1c48aa36 BH |
188 | 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. | |
1da177e4 LT |
194 | |
195 | config ACPI_FAN | |
196 | tristate "Fan" | |
d8054749 | 197 | depends on THERMAL |
07fefe4c | 198 | default y |
1da177e4 | 199 | help |
1c48aa36 | 200 | This driver supports ACPI fan devices, allowing user-mode |
1da177e4 LT |
201 | applications to perform basic fan control (on, off, status). |
202 | ||
1c48aa36 BH |
203 | To compile this driver as a module, choose M here: |
204 | the module will be called fan. | |
205 | ||
c8f7a62c | 206 | config ACPI_DOCK |
898b054f | 207 | bool "Dock" |
c8f7a62c | 208 | help |
1c48aa36 BH |
209 | This driver supports ACPI-controlled docking stations and removable |
210 | drive bays such as the IBM Ultrabay and the Dell Module Bay. | |
01b57e73 | 211 | |
239708a3 AC |
212 | config ACPI_CPU_FREQ_PSS |
213 | bool | |
214 | select THERMAL | |
215 | ||
5f05586c AC |
216 | config ACPI_PROCESSOR_IDLE |
217 | bool | |
218 | select CPU_IDLE | |
219 | ||
337aadff AC |
220 | config 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 | ||
1da177e4 LT |
234 | config ACPI_PROCESSOR |
235 | tristate "Processor" | |
ad806ea6 AC |
236 | depends on X86 || IA64 || ARM64 |
237 | select ACPI_PROCESSOR_IDLE if X86 || IA64 | |
238 | select ACPI_CPU_FREQ_PSS if X86 || IA64 | |
07fefe4c | 239 | default y |
1da177e4 | 240 | help |
239708a3 AC |
241 | 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. | |
1c48aa36 BH |
244 | |
245 | To compile this driver as a module, choose M here: | |
246 | the module will be called processor. | |
4b88e330 | 247 | |
e92b297c ZY |
248 | config ACPI_IPMI |
249 | tristate "IPMI" | |
4b88e330 | 250 | depends on IPMI_SI |
e92b297c ZY |
251 | 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. | |
1da177e4 LT |
259 | |
260 | config ACPI_HOTPLUG_CPU | |
cbfc1bae | 261 | bool |
f756f28b | 262 | depends on ACPI_PROCESSOR && HOTPLUG_CPU |
1da177e4 | 263 | select ACPI_CONTAINER |
cbfc1bae | 264 | default y |
1da177e4 | 265 | |
8e0af514 SL |
266 | config ACPI_PROCESSOR_AGGREGATOR |
267 | tristate "Processor Aggregator" | |
268 | depends on ACPI_PROCESSOR | |
d91f79eb | 269 | depends on X86 |
8e0af514 SL |
270 | help |
271 | ACPI 4.0 defines processor Aggregator, which enables OS to perform | |
c4c4e2a5 | 272 | specific processor configuration and control that applies to all |
8e0af514 SL |
273 | processors in the platform. Currently only logical processor idling |
274 | is defined, which is to reduce power consumption. This driver | |
c4c4e2a5 | 275 | supports the new device. |
8e0af514 | 276 | |
1da177e4 LT |
277 | config ACPI_THERMAL |
278 | tristate "Thermal Zone" | |
279 | depends on ACPI_PROCESSOR | |
3f655ef8 | 280 | select THERMAL |
07fefe4c | 281 | default y |
1da177e4 | 282 | help |
1c48aa36 | 283 | This driver supports ACPI thermal zones. Most mobile and |
1da177e4 LT |
284 | 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 | ||
1c48aa36 BH |
288 | To compile this driver as a module, choose M here: |
289 | the module will be called thermal. | |
290 | ||
1da177e4 LT |
291 | config ACPI_NUMA |
292 | bool "NUMA support" | |
293 | depends on NUMA | |
762834e8 | 294 | depends on (X86 || IA64) |
1da177e4 LT |
295 | default y if IA64_GENERIC || IA64_SGI_SN2 |
296 | ||
7ce9573e RD |
297 | config ACPI_CUSTOM_DSDT_FILE |
298 | string "Custom DSDT Table file to include" | |
299 | default "" | |
1da177e4 | 300 | depends on !STANDALONE |
1da177e4 | 301 | help |
d89e9d6b LB |
302 | This option supports a custom DSDT by linking it into the kernel. |
303 | See Documentation/acpi/dsdt-override.txt | |
304 | ||
c30fe7f7 UZ |
305 | Enter the full path name to the file which includes the AmlCode |
306 | declaration. | |
1da177e4 | 307 | |
7ce9573e RD |
308 | If unsure, don't enter a file name. |
309 | ||
310 | config ACPI_CUSTOM_DSDT | |
311 | bool | |
312 | default ACPI_CUSTOM_DSDT_FILE != "" | |
313 | ||
5d881327 LZ |
314 | config ACPI_TABLE_UPGRADE |
315 | bool "Allow upgrading ACPI tables via initrd" | |
565d956a | 316 | depends on BLK_DEV_INITRD && X86 |
5d881327 | 317 | default y |
53aac44c | 318 | help |
5d881327 | 319 | This option provides functionality to upgrade arbitrary ACPI tables |
53aac44c TR |
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 | ||
1da177e4 LT |
324 | config ACPI_DEBUG |
325 | bool "Debug Statements" | |
1da177e4 LT |
326 | default n |
327 | help | |
a0d84a92 BH |
328 | 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. | |
1da177e4 | 335 | |
8344b568 | 336 | config ACPI_PCI_SLOT |
ab1a2e03 | 337 | bool "PCI slot detection driver" |
268a03a4 | 338 | depends on SYSFS |
8344b568 AC |
339 | default n |
340 | help | |
1c48aa36 BH |
341 | 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 | ||
1da177e4 | 346 | config X86_PM_TIMER |
6a108a14 | 347 | bool "Power Management Timer Support" if EXPERT |
1da177e4 | 348 | depends on X86 |
07fefe4c | 349 | default y |
1da177e4 LT |
350 | help |
351 | The Power Management Timer is available on all ACPI-capable, | |
352 | in most cases even if ACPI is unusable or blacklisted. | |
353 | ||
c73a668c | 354 | This timing source is not affected by power management features |
1da177e4 LT |
355 | like aggressive processor idling, throttling, frequency and/or |
356 | voltage scaling, unlike the commonly used Time Stamp Counter | |
357 | (TSC) timing source. | |
358 | ||
e78256b8 AK |
359 | You should nearly always say Y here because many modern |
360 | systems require this timer. | |
1da177e4 LT |
361 | |
362 | config ACPI_CONTAINER | |
06991c28 | 363 | bool "Container and Module Devices" |
ea6a4581 | 364 | default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU) |
1c48aa36 BH |
365 | help |
366 | This driver supports ACPI Container and Module devices (IDs | |
367 | ACPI0004, PNP0A05, and PNP0A06). | |
45b1b196 | 368 | |
1c48aa36 BH |
369 | 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. | |
1da177e4 LT |
373 | |
374 | config ACPI_HOTPLUG_MEMORY | |
0a347644 | 375 | bool "Memory Hotplug" |
bc02af93 | 376 | depends on MEMORY_HOTPLUG |
1da177e4 | 377 | help |
1c48aa36 BH |
378 | 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. | |
1da177e4 | 382 | |
1c48aa36 BH |
383 | If your hardware and firmware do not support adding or |
384 | removing memory devices at runtime, you need not enable | |
385 | this driver. | |
1da177e4 | 386 | |
1c48aa36 BH |
387 | To compile this driver as a module, choose M here: |
388 | the module will be called acpi_memhotplug. | |
3f86b832 | 389 | |
c183619b JL |
390 | config ACPI_HOTPLUG_IOAPIC |
391 | bool | |
392 | depends on PCI | |
393 | depends on X86_IO_APIC | |
394 | default y | |
395 | ||
3f86b832 | 396 | config ACPI_SBS |
94f6c086 | 397 | tristate "Smart Battery System" |
b4150fc4 | 398 | depends on X86 |
1b3d4c3b | 399 | select POWER_SUPPLY |
3f86b832 | 400 | help |
1c48aa36 | 401 | This driver supports the Smart Battery System, another |
94f6c086 | 402 | type of access to battery information, found on some laptops. |
3f86b832 | 403 | |
1c48aa36 BH |
404 | To compile this driver as a module, choose M here: |
405 | the modules will be called sbs and sbshc. | |
406 | ||
801eab81 HY |
407 | config 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 | ||
526b4af4 TR |
414 | config 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 | |
bd1b2a55 | 419 | This debug facility allows ACPI AML methods to be inserted and/or |
526b4af4 TR |
420 | 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 | ||
d1ff4b1c | 429 | config ACPI_BGRT |
2223af38 | 430 | bool "Boottime Graphics Resource Table support" |
e66cd537 | 431 | depends on EFI && X86 |
d1ff4b1c MG |
432 | 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 | ||
af1ae78a AS |
438 | config ACPI_REDUCED_HARDWARE_ONLY |
439 | bool "Hardware-reduced ACPI support only" if EXPERT | |
440 | def_bool n | |
af1ae78a | 441 | help |
99a33ffc HG |
442 | 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. | |
af1ae78a | 447 | |
99a33ffc | 448 | If you are unsure what to do, do not enable this option. |
af1ae78a | 449 | |
b94d5230 DW |
450 | config ACPI_NFIT |
451 | tristate "ACPI NVDIMM Firmware Interface Table (NFIT)" | |
452 | depends on PHYS_ADDR_T_64BIT | |
453 | depends on BLK_DEV | |
67a3e8fe | 454 | depends on ARCH_HAS_MMIO_FLUSH |
b94d5230 DW |
455 | 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 | ||
62232e45 DW |
465 | config 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 | ||
a643ce20 HY |
477 | source "drivers/acpi/apei/Kconfig" |
478 | ||
4b3db708 CG |
479 | config ACPI_EXTLOG |
480 | tristate "Extended Error Log support" | |
9ebddac7 | 481 | depends on X86_MCE && X86_LOCAL_APIC |
7ea6c6c1 | 482 | select UEFI_CPER |
2dfb7d51 | 483 | select RAS |
4b3db708 CG |
484 | 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 | |
2dfb7d51 CG |
498 | driver adds support for that functionality with corresponding |
499 | tracepoint which carries that information to userspace. | |
4b3db708 | 500 | |
b1eea857 AL |
501 | menuconfig 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 | ||
509 | if PMIC_OPREGION | |
510 | config 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 | ||
d8139f63 AL |
516 | config 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 | ||
b1eea857 AL |
522 | endif |
523 | ||
1da177e4 | 524 | endif # ACPI |