Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | # |
| 2 | # ACPI Configuration |
| 3 | # |
| 4 | |
Jan Engelhardt | 3f2c48c | 2007-07-03 01:40:59 -0400 | [diff] [blame] | 5 | menuconfig ACPI |
Frans Pop | 355ee5e | 2007-10-29 17:20:38 -0400 | [diff] [blame] | 6 | bool "ACPI (Advanced Configuration and Power Interface) Support" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | depends on !IA64_HP_SIM |
| 8 | depends on IA64 || X86 |
Adrian Bunk | 1300124 | 2006-03-28 17:04:00 -0500 | [diff] [blame] | 9 | depends on PCI |
Len Brown | 243b66e | 2007-02-15 22:34:36 -0500 | [diff] [blame] | 10 | select PNP |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | default y |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 12 | help |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | Advanced Configuration and Power Interface (ACPI) support for |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 14 | Linux requires an ACPI-compliant platform (hardware/firmware), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 24 | are configured, ACPI is used. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 26 | The project home page for the Linux ACPI subsystem is here: |
Rafael J. Wysocki | aaf3d29 | 2013-10-10 23:25:58 +0200 | [diff] [blame] | 27 | <https://01.org/linux-acpi> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | |
| 29 | Linux support for ACPI is based on Intel Corporation's ACPI |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 30 | Component Architecture (ACPI CA). For more information on the |
| 31 | ACPI CA, see: |
| 32 | <http://acpica.org/> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | |
Hanjun Guo | c7f5220 | 2014-04-08 20:59:48 +0800 | [diff] [blame] | 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. |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 39 | The specification is available at: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | <http://www.acpi.info> |
Hanjun Guo | c7f5220 | 2014-04-08 20:59:48 +0800 | [diff] [blame] | 41 | <http://www.uefi.org/acpi/specs> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | |
Len Brown | 3e11c3c | 2005-05-27 04:53:27 -0400 | [diff] [blame] | 43 | if ACPI |
| 44 | |
Graeme Gregory | 8a1664b | 2014-07-18 18:02:52 +0800 | [diff] [blame] | 45 | config ACPI_LEGACY_TABLES_LOOKUP |
| 46 | bool |
| 47 | |
Hanjun Guo | 46ba51e | 2014-07-18 18:02:54 +0800 | [diff] [blame] | 48 | config ARCH_MIGHT_HAVE_ACPI_PDC |
| 49 | bool |
| 50 | |
Len Brown | 673d5b4 | 2007-07-28 03:33:16 -0400 | [diff] [blame] | 51 | config ACPI_SLEEP |
| 52 | bool |
Rafael J. Wysocki | 5d1e072 | 2008-10-22 14:58:43 -0400 | [diff] [blame] | 53 | depends on SUSPEND || HIBERNATION |
Len Brown | 673d5b4 | 2007-07-28 03:33:16 -0400 | [diff] [blame] | 54 | default y |
| 55 | |
Lan Tianyu | e2a7c3d | 2014-05-04 11:07:24 +0800 | [diff] [blame] | 56 | config ACPI_PROCFS_POWER |
| 57 | bool "Deprecated power /proc/acpi directories" |
| 58 | depends on PROC_FS |
| 59 | help |
| 60 | For backwards compatibility, this option allows |
| 61 | deprecated power /proc/acpi/ directories to exist, even when |
| 62 | they have been replaced by functions in /sys. |
| 63 | The deprecated directories (and their replacements) include: |
| 64 | /proc/acpi/battery/* (/sys/class/power_supply/*) |
| 65 | /proc/acpi/ac_adapter/* (sys/class/power_supply/*) |
| 66 | This option has no effect on /proc/acpi/ directories |
| 67 | and functions, which do not yet exist in /sys |
| 68 | This option, together with the proc directories, will be |
Rafael J. Wysocki | 3afcb96 | 2014-05-10 13:51:36 +0200 | [diff] [blame] | 69 | deleted in the future. |
Lan Tianyu | e2a7c3d | 2014-05-04 11:07:24 +0800 | [diff] [blame] | 70 | |
| 71 | Say N to delete power /proc/acpi/ directories that have moved to /sys/ |
| 72 | |
Thomas Renninger | 1195a09 | 2010-07-16 13:11:31 +0200 | [diff] [blame] | 73 | config ACPI_EC_DEBUGFS |
| 74 | tristate "EC read/write access through /sys/kernel/debug/ec" |
Thomas Renninger | 500de3dd | 2010-07-29 22:30:24 +0200 | [diff] [blame] | 75 | default n |
Thomas Renninger | 1195a09 | 2010-07-16 13:11:31 +0200 | [diff] [blame] | 76 | help |
| 77 | Say N to disable Embedded Controller /sys/kernel/debug interface |
| 78 | |
Thomas Renninger | 500de3dd | 2010-07-29 22:30:24 +0200 | [diff] [blame] | 79 | Be aware that using this interface can confuse your Embedded |
| 80 | Controller in a way that a normal reboot is not enough. You then |
Andrea Gelmini | 25cb1bf | 2010-08-18 15:22:10 +0200 | [diff] [blame] | 81 | have to power off your system, and remove the laptop battery for |
Thomas Renninger | 500de3dd | 2010-07-29 22:30:24 +0200 | [diff] [blame] | 82 | some seconds. |
Thomas Renninger | 1195a09 | 2010-07-16 13:11:31 +0200 | [diff] [blame] | 83 | An Embedded Controller typically is available on laptops and reads |
| 84 | sensor values like battery state and temperature. |
Thomas Renninger | 500de3dd | 2010-07-29 22:30:24 +0200 | [diff] [blame] | 85 | The kernel accesses the EC through ACPI parsed code provided by BIOS |
| 86 | tables. This option allows to access the EC directly without ACPI |
| 87 | code being involved. |
Thomas Renninger | 1195a09 | 2010-07-16 13:11:31 +0200 | [diff] [blame] | 88 | Thus this option is a debug option that helps to write ACPI drivers |
| 89 | and can be used to identify ACPI code or EC firmware bugs. |
| 90 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | config ACPI_AC |
| 92 | tristate "AC Adapter" |
Alexey Starikovskiy | 5527c8b | 2007-10-29 17:08:59 -0400 | [diff] [blame] | 93 | depends on X86 |
Zhang Rui | 1b3d4c3 | 2010-10-08 13:54:57 +0800 | [diff] [blame] | 94 | select POWER_SUPPLY |
Len Brown | 07fefe4 | 2005-08-25 12:22:04 -0400 | [diff] [blame] | 95 | default y |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | help |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 97 | This driver supports the AC Adapter object, which indicates |
| 98 | whether a system is on AC or not. If you have a system that can |
Len Brown | 07fefe4 | 2005-08-25 12:22:04 -0400 | [diff] [blame] | 99 | switch between A/C and battery, say Y. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 101 | To compile this driver as a module, choose M here: |
| 102 | the module will be called ac. |
| 103 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | config ACPI_BATTERY |
| 105 | tristate "Battery" |
Alexey Starikovskiy | 5527c8b | 2007-10-29 17:08:59 -0400 | [diff] [blame] | 106 | depends on X86 |
Zhang Rui | 1b3d4c3 | 2010-10-08 13:54:57 +0800 | [diff] [blame] | 107 | select POWER_SUPPLY |
Len Brown | 07fefe4 | 2005-08-25 12:22:04 -0400 | [diff] [blame] | 108 | default y |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | help |
| 110 | This driver adds support for battery information through |
| 111 | /proc/acpi/battery. If you have a mobile system with a battery, |
| 112 | say Y. |
| 113 | |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 114 | To compile this driver as a module, choose M here: |
| 115 | the module will be called battery. |
| 116 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | config ACPI_BUTTON |
| 118 | tristate "Button" |
Dmitry Torokhov | c0968f0 | 2006-11-09 00:40:13 -0500 | [diff] [blame] | 119 | depends on INPUT |
Len Brown | 07fefe4 | 2005-08-25 12:22:04 -0400 | [diff] [blame] | 120 | default y |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | help |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 122 | This driver handles events on the power, sleep, and lid buttons. |
Krzysztof Mazur | 7d13f94 | 2013-10-13 00:11:00 +0200 | [diff] [blame] | 123 | A daemon reads events from input devices or via netlink and |
| 124 | performs user-defined actions such as shutting down the system. |
| 125 | This is necessary for software-controlled poweroff. |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 126 | |
| 127 | To compile this driver as a module, choose M here: |
| 128 | the module will be called button. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | |
| 130 | config ACPI_VIDEO |
| 131 | tristate "Video" |
Jean Delvare | 9f380fc | 2014-03-17 15:46:44 +0100 | [diff] [blame] | 132 | depends on X86 && BACKLIGHT_CLASS_DEVICE |
Andreas Herrmann | 03e2bf2 | 2007-09-17 23:41:05 +0200 | [diff] [blame] | 133 | depends on INPUT |
Zhang Rui | 63c4ec9 | 2008-04-21 16:07:13 +0800 | [diff] [blame] | 134 | select THERMAL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | help |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 136 | This driver implements the ACPI Extensions For Display Adapters |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | for integrated graphics devices on motherboard, as specified in |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 138 | ACPI 2.0 Specification, Appendix B. This supports basic operations |
| 139 | such as defining the video POST device, retrieving EDID information, |
| 140 | and setting up a video output. |
| 141 | |
| 142 | To compile this driver as a module, choose M here: |
| 143 | the module will be called video. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | |
| 145 | config ACPI_FAN |
| 146 | tristate "Fan" |
Zhang Rui | 63c4ec9 | 2008-04-21 16:07:13 +0800 | [diff] [blame] | 147 | select THERMAL |
Len Brown | 07fefe4 | 2005-08-25 12:22:04 -0400 | [diff] [blame] | 148 | default y |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | help |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 150 | This driver supports ACPI fan devices, allowing user-mode |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | applications to perform basic fan control (on, off, status). |
| 152 | |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 153 | To compile this driver as a module, choose M here: |
| 154 | the module will be called fan. |
| 155 | |
Len Brown | c8f7a62 | 2006-07-09 17:22:28 -0400 | [diff] [blame] | 156 | config ACPI_DOCK |
Shaohua Li | 898b054 | 2008-09-27 11:10:28 +0800 | [diff] [blame] | 157 | bool "Dock" |
Len Brown | c8f7a62 | 2006-07-09 17:22:28 -0400 | [diff] [blame] | 158 | help |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 159 | This driver supports ACPI-controlled docking stations and removable |
| 160 | drive bays such as the IBM Ultrabay and the Dell Module Bay. |
Kristen Carlson Accardi | 01b57e7 | 2006-10-20 14:30:25 -0700 | [diff] [blame] | 161 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | config ACPI_PROCESSOR |
| 163 | tristate "Processor" |
Zhang Rui | 63c4ec9 | 2008-04-21 16:07:13 +0800 | [diff] [blame] | 164 | select THERMAL |
Jean Delvare | a4084c1 | 2010-10-10 14:54:52 +0200 | [diff] [blame] | 165 | select CPU_IDLE |
Len Brown | 07fefe4 | 2005-08-25 12:22:04 -0400 | [diff] [blame] | 166 | default y |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | help |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 168 | This driver installs ACPI as the idle handler for Linux and uses |
| 169 | ACPI C2 and C3 processor states to save power on systems that |
Len Brown | 07fefe4 | 2005-08-25 12:22:04 -0400 | [diff] [blame] | 170 | support it. It is required by several flavors of cpufreq |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 171 | performance-state drivers. |
| 172 | |
| 173 | To compile this driver as a module, choose M here: |
| 174 | the module will be called processor. |
Lv Zheng | 4b88e33 | 2013-09-13 13:14:51 +0800 | [diff] [blame] | 175 | |
Zhao Yakui | e92b297 | 2010-12-08 10:10:18 +0800 | [diff] [blame] | 176 | config ACPI_IPMI |
| 177 | tristate "IPMI" |
Lv Zheng | 4b88e33 | 2013-09-13 13:14:51 +0800 | [diff] [blame] | 178 | depends on IPMI_SI |
Zhao Yakui | e92b297 | 2010-12-08 10:10:18 +0800 | [diff] [blame] | 179 | default n |
| 180 | help |
| 181 | This driver enables the ACPI to access the BMC controller. And it |
| 182 | uses the IPMI request/response message to communicate with BMC |
| 183 | controller, which can be found on on the server. |
| 184 | |
| 185 | To compile this driver as a module, choose M here: |
| 186 | the module will be called as acpi_ipmi. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | |
| 188 | config ACPI_HOTPLUG_CPU |
Adrian Bunk | cbfc1ba | 2005-07-30 04:18:00 -0400 | [diff] [blame] | 189 | bool |
Kees Cook | f756f28 | 2013-01-16 18:53:28 -0800 | [diff] [blame] | 190 | depends on ACPI_PROCESSOR && HOTPLUG_CPU |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | select ACPI_CONTAINER |
Adrian Bunk | cbfc1ba | 2005-07-30 04:18:00 -0400 | [diff] [blame] | 192 | default y |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | |
Shaohua Li | 8e0af51 | 2009-07-27 18:11:02 -0400 | [diff] [blame] | 194 | config ACPI_PROCESSOR_AGGREGATOR |
| 195 | tristate "Processor Aggregator" |
| 196 | depends on ACPI_PROCESSOR |
Len Brown | d91f79e | 2009-09-27 02:35:55 -0400 | [diff] [blame] | 197 | depends on X86 |
Shaohua Li | 8e0af51 | 2009-07-27 18:11:02 -0400 | [diff] [blame] | 198 | help |
| 199 | ACPI 4.0 defines processor Aggregator, which enables OS to perform |
Jiri Slaby | c4c4e2a | 2009-10-09 15:53:24 +0200 | [diff] [blame] | 200 | specific processor configuration and control that applies to all |
Shaohua Li | 8e0af51 | 2009-07-27 18:11:02 -0400 | [diff] [blame] | 201 | processors in the platform. Currently only logical processor idling |
| 202 | is defined, which is to reduce power consumption. This driver |
Jiri Slaby | c4c4e2a | 2009-10-09 15:53:24 +0200 | [diff] [blame] | 203 | supports the new device. |
Shaohua Li | 8e0af51 | 2009-07-27 18:11:02 -0400 | [diff] [blame] | 204 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | config ACPI_THERMAL |
| 206 | tristate "Thermal Zone" |
| 207 | depends on ACPI_PROCESSOR |
Zhang Rui | 3f655ef | 2008-01-17 15:51:11 +0800 | [diff] [blame] | 208 | select THERMAL |
Len Brown | 07fefe4 | 2005-08-25 12:22:04 -0400 | [diff] [blame] | 209 | default y |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | help |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 211 | This driver supports ACPI thermal zones. Most mobile and |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | some desktop systems support ACPI thermal zones. It is HIGHLY |
| 213 | recommended that this option be enabled, as your processor(s) |
| 214 | may be damaged without it. |
| 215 | |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 216 | To compile this driver as a module, choose M here: |
| 217 | the module will be called thermal. |
| 218 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | config ACPI_NUMA |
| 220 | bool "NUMA support" |
| 221 | depends on NUMA |
Yasunori Goto | 762834e | 2006-06-23 02:03:19 -0700 | [diff] [blame] | 222 | depends on (X86 || IA64) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | default y if IA64_GENERIC || IA64_SGI_SN2 |
| 224 | |
Randy Dunlap | 7ce9573 | 2008-02-22 11:25:04 -0800 | [diff] [blame] | 225 | config ACPI_CUSTOM_DSDT_FILE |
| 226 | string "Custom DSDT Table file to include" |
| 227 | default "" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | depends on !STANDALONE |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | help |
Len Brown | d89e9d6 | 2008-02-06 19:28:02 -0500 | [diff] [blame] | 230 | This option supports a custom DSDT by linking it into the kernel. |
| 231 | See Documentation/acpi/dsdt-override.txt |
| 232 | |
Uwe Zeisberger | c30fe7f | 2006-03-24 18:23:14 +0100 | [diff] [blame] | 233 | Enter the full path name to the file which includes the AmlCode |
| 234 | declaration. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | |
Randy Dunlap | 7ce9573 | 2008-02-22 11:25:04 -0800 | [diff] [blame] | 236 | If unsure, don't enter a file name. |
| 237 | |
| 238 | config ACPI_CUSTOM_DSDT |
| 239 | bool |
| 240 | default ACPI_CUSTOM_DSDT_FILE != "" |
| 241 | |
Thomas Renninger | 53aac44 | 2012-10-01 00:23:54 +0200 | [diff] [blame] | 242 | config ACPI_INITRD_TABLE_OVERRIDE |
Thomas Renninger | 565d956 | 2013-02-22 14:12:22 +0100 | [diff] [blame] | 243 | bool "ACPI tables override via initrd" |
| 244 | depends on BLK_DEV_INITRD && X86 |
Thomas Renninger | 53aac44 | 2012-10-01 00:23:54 +0200 | [diff] [blame] | 245 | default n |
| 246 | help |
| 247 | This option provides functionality to override arbitrary ACPI tables |
| 248 | via initrd. No functional change if no ACPI tables are passed via |
| 249 | initrd, therefore it's safe to say Y. |
| 250 | See Documentation/acpi/initrd_table_override.txt for details |
| 251 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | config ACPI_DEBUG |
| 253 | bool "Debug Statements" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | default n |
| 255 | help |
Bjorn Helgaas | a0d84a9 | 2008-11-07 16:58:05 -0700 | [diff] [blame] | 256 | The ACPI subsystem can produce debug output. Saying Y enables this |
| 257 | output and increases the kernel size by around 50K. |
| 258 | |
| 259 | Use the acpi.debug_layer and acpi.debug_level kernel command-line |
| 260 | parameters documented in Documentation/acpi/debug.txt and |
| 261 | Documentation/kernel-parameters.txt to control the type and |
| 262 | amount of debug output. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | |
Alex Chiang | 8344b56 | 2008-06-10 15:30:42 -0600 | [diff] [blame] | 264 | config ACPI_PCI_SLOT |
Jiang Liu | ab1a2e0 | 2013-01-19 00:07:42 +0800 | [diff] [blame] | 265 | bool "PCI slot detection driver" |
Alex Chiang | 268a03a | 2009-06-17 19:03:57 -0600 | [diff] [blame] | 266 | depends on SYSFS |
Alex Chiang | 8344b56 | 2008-06-10 15:30:42 -0600 | [diff] [blame] | 267 | default n |
| 268 | help |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 269 | This driver creates entries in /sys/bus/pci/slots/ for all PCI |
| 270 | slots in the system. This can help correlate PCI bus addresses, |
| 271 | i.e., segment/bus/device/function tuples, with physical slots in |
| 272 | the system. If you are unsure, say N. |
| 273 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | config X86_PM_TIMER |
David Rientjes | 6a108a1 | 2011-01-20 14:44:16 -0800 | [diff] [blame] | 275 | bool "Power Management Timer Support" if EXPERT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | depends on X86 |
Len Brown | 07fefe4 | 2005-08-25 12:22:04 -0400 | [diff] [blame] | 277 | default y |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | help |
| 279 | The Power Management Timer is available on all ACPI-capable, |
| 280 | in most cases even if ACPI is unusable or blacklisted. |
| 281 | |
Matt LaPlante | c73a668 | 2006-10-03 22:24:43 +0200 | [diff] [blame] | 282 | This timing source is not affected by power management features |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | like aggressive processor idling, throttling, frequency and/or |
| 284 | voltage scaling, unlike the commonly used Time Stamp Counter |
| 285 | (TSC) timing source. |
| 286 | |
Andi Kleen | e78256b | 2006-02-26 04:18:37 +0100 | [diff] [blame] | 287 | You should nearly always say Y here because many modern |
| 288 | systems require this timer. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | |
| 290 | config ACPI_CONTAINER |
Linus Torvalds | 06991c2 | 2013-02-21 12:05:51 -0800 | [diff] [blame] | 291 | bool "Container and Module Devices" |
Paul Bolle | ea6a458 | 2013-03-11 10:53:48 +0000 | [diff] [blame] | 292 | default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU) |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 293 | help |
| 294 | This driver supports ACPI Container and Module devices (IDs |
| 295 | ACPI0004, PNP0A05, and PNP0A06). |
Keiichiro Tokunaga | 45b1b19 | 2005-03-02 00:00:00 -0500 | [diff] [blame] | 296 | |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 297 | This helps support hotplug of nodes, CPUs, and memory. |
| 298 | |
| 299 | To compile this driver as a module, choose M here: |
| 300 | the module will be called container. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | |
| 302 | config ACPI_HOTPLUG_MEMORY |
Rafael J. Wysocki | 0a34764 | 2013-03-03 23:18:03 +0100 | [diff] [blame] | 303 | bool "Memory Hotplug" |
Yasunori Goto | bc02af9 | 2006-06-27 02:53:30 -0700 | [diff] [blame] | 304 | depends on MEMORY_HOTPLUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | help |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 306 | This driver supports ACPI memory hotplug. The driver |
| 307 | fields notifications on ACPI memory devices (PNP0C80), |
| 308 | which represent memory ranges that may be onlined or |
| 309 | offlined during runtime. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 311 | If your hardware and firmware do not support adding or |
| 312 | removing memory devices at runtime, you need not enable |
| 313 | this driver. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 315 | To compile this driver as a module, choose M here: |
| 316 | the module will be called acpi_memhotplug. |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 317 | |
| 318 | config ACPI_SBS |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 319 | tristate "Smart Battery System" |
Vladimir Lebedev | b4150fc | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 320 | depends on X86 |
Zhang Rui | 1b3d4c3 | 2010-10-08 13:54:57 +0800 | [diff] [blame] | 321 | select POWER_SUPPLY |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 322 | help |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 323 | This driver supports the Smart Battery System, another |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 324 | type of access to battery information, found on some laptops. |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 325 | |
Bjorn Helgaas | 1c48aa3 | 2009-02-19 14:45:47 -0700 | [diff] [blame] | 326 | To compile this driver as a module, choose M here: |
| 327 | the modules will be called sbs and sbshc. |
| 328 | |
Huang Ying | 801eab8 | 2010-05-18 14:35:17 +0800 | [diff] [blame] | 329 | config ACPI_HED |
| 330 | tristate "Hardware Error Device" |
| 331 | help |
| 332 | This driver supports the Hardware Error Device (PNP0C33), |
| 333 | which is used to report some hardware errors notified via |
| 334 | SCI, mainly the corrected errors. |
| 335 | |
Thomas Renninger | 526b4af | 2011-05-26 12:26:24 +0200 | [diff] [blame] | 336 | config ACPI_CUSTOM_METHOD |
| 337 | tristate "Allow ACPI methods to be inserted/replaced at run time" |
| 338 | depends on DEBUG_FS |
| 339 | default n |
| 340 | help |
Justin P. Mattock | bd1b2a5 | 2012-01-03 08:49:48 -0800 | [diff] [blame] | 341 | This debug facility allows ACPI AML methods to be inserted and/or |
Thomas Renninger | 526b4af | 2011-05-26 12:26:24 +0200 | [diff] [blame] | 342 | replaced without rebooting the system. For details refer to: |
| 343 | Documentation/acpi/method-customizing.txt. |
| 344 | |
| 345 | NOTE: This option is security sensitive, because it allows arbitrary |
| 346 | kernel memory to be written to by root (uid=0) users, allowing them |
| 347 | to bypass certain security measures (e.g. if root is not allowed to |
| 348 | load additional kernel modules after boot, this feature may be used |
| 349 | to override that restriction). |
| 350 | |
Matthew Garrett | d1ff4b1 | 2012-01-31 13:19:20 -0500 | [diff] [blame] | 351 | config ACPI_BGRT |
Josh Triplett | 2223af3 | 2012-09-28 17:57:05 -0700 | [diff] [blame] | 352 | bool "Boottime Graphics Resource Table support" |
Tony Luck | e66cd53 | 2013-04-03 13:17:20 +0200 | [diff] [blame] | 353 | depends on EFI && X86 |
Matthew Garrett | d1ff4b1 | 2012-01-31 13:19:20 -0500 | [diff] [blame] | 354 | help |
| 355 | This driver adds support for exposing the ACPI Boottime Graphics |
| 356 | Resource Table, which allows the operating system to obtain |
| 357 | data from the firmware boot splash. It will appear under |
| 358 | /sys/firmware/acpi/bgrt/ . |
| 359 | |
Al Stone | af1ae78 | 2014-01-17 11:51:30 -0700 | [diff] [blame] | 360 | config ACPI_REDUCED_HARDWARE_ONLY |
| 361 | bool "Hardware-reduced ACPI support only" if EXPERT |
| 362 | def_bool n |
| 363 | depends on ACPI |
| 364 | help |
| 365 | This config item changes the way the ACPI code is built. When this |
| 366 | option is selected, the kernel will use a specialized version of |
| 367 | ACPICA that ONLY supports the ACPI "reduced hardware" mode. The |
| 368 | resulting kernel will be smaller but it will also be restricted to |
| 369 | running in ACPI reduced hardware mode ONLY. |
| 370 | |
| 371 | If you are unsure what to do, do not enable this option. |
| 372 | |
Huang Ying | a643ce2 | 2010-05-18 14:35:12 +0800 | [diff] [blame] | 373 | source "drivers/acpi/apei/Kconfig" |
| 374 | |
Chen, Gong | 4b3db70 | 2013-10-21 14:29:25 -0700 | [diff] [blame] | 375 | config ACPI_EXTLOG |
| 376 | tristate "Extended Error Log support" |
Luck, Tony | 9ebddac | 2013-11-08 14:03:33 -0800 | [diff] [blame] | 377 | depends on X86_MCE && X86_LOCAL_APIC |
Luck, Tony | 7ea6c6c | 2013-10-28 14:06:55 -0700 | [diff] [blame] | 378 | select UEFI_CPER |
Chen, Gong | 2dfb7d5 | 2014-06-17 22:33:07 -0400 | [diff] [blame] | 379 | select RAS |
Chen, Gong | 4b3db70 | 2013-10-21 14:29:25 -0700 | [diff] [blame] | 380 | default n |
| 381 | help |
| 382 | Certain usages such as Predictive Failure Analysis (PFA) require |
| 383 | more information about the error than what can be described in |
| 384 | processor machine check banks. Most server processors log |
| 385 | additional information about the error in processor uncore |
| 386 | registers. Since the addresses and layout of these registers vary |
| 387 | widely from one processor to another, system software cannot |
| 388 | readily make use of them. To complicate matters further, some of |
| 389 | the additional error information cannot be constructed without |
| 390 | detailed knowledge about platform topology. |
| 391 | |
| 392 | Enhanced MCA Logging allows firmware to provide additional error |
| 393 | information to system software, synchronous with MCE or CMCI. This |
Chen, Gong | 2dfb7d5 | 2014-06-17 22:33:07 -0400 | [diff] [blame] | 394 | driver adds support for that functionality with corresponding |
| 395 | tracepoint which carries that information to userspace. |
Chen, Gong | 4b3db70 | 2013-10-21 14:29:25 -0700 | [diff] [blame] | 396 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | endif # ACPI |