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/linux/sound/soc/intel/common/
H A DMakefile2 snd-soc-acpi-intel-match-y := soc-acpi-intel-byt-match.o soc-acpi-intel-cht-match.o \
3 soc-acpi-intel-hsw-bdw-match.o \
4 soc-acpi-intel-skl-match.o soc-acpi-intel-kbl-match.o \
5 soc-acpi-intel-bxt-match.o soc-acpi-intel-glk-match.o \
6 soc-acpi-intel-cnl-match.o soc-acpi
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/linux/drivers/acpi/
H A DMakefile3 # Makefile for the Linux ACPI interpreter
13 # ACPI Boot-Time Table Parsing
23 # ACPI Core Subsystem (Interpreter)
25 obj-$(CONFIG_ACPI) += acpi.o \
28 # All the builtin files are in the "acpi." module_param namespace.
29 acpi-y += osi.o osl.o utils.o reboot.o
30 acpi-y += nvs.o
33 acpi-y += wakeup.o
34 acpi-$(CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT) += sleep.o
35 acpi-y += device_sysfs.o device_pm.o
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H A DKconfig3 # ACPI Configuration
9 menuconfig ACPI config
10 bool "ACPI (Advanced Configuration and Power Interface) Support"
19 Advanced Configuration and Power Interface (ACPI) support for
20 Linux requires an ACPI-compliant platform (hardware/firmware),
25 Linux ACPI provides a robust functional replacement for several
29 Management (APM) specification. If both ACPI and APM support
30 are configured, ACPI is used.
32 Linux support for ACPI is based on Intel Corporation's ACPI
33 Component Architecture (ACPI CA). For more information on the
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H A Ddevice_pm.c3 * drivers/acpi/device_pm.c - ACPI device power management routines.
15 #include <linux/acpi.h>
27 * acpi_power_state_string - String representation of ACPI device power state.
28 * @state: ACPI device power state to return the string representation of.
62 * acpi_device_get_power - Get power state of an ACPI device.
113 * For systems predating ACPI 4.0 we assume that D3hot is the in acpi_device_get_power()
155 * acpi_device_set_power - Set power state of an ACPI device.
212 * In accordance with ACPI 6, _PSx is executed before manipulating power in acpi_device_set_power()
218 * According to ACPI 6, devices cannot go from lower-power in acpi_device_set_power()
489 * @adev: Parent ACPI device object.
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/linux/Documentation/firmware-guide/acpi/
H A Ddebug.rst4 ACPI CA Debug Output
7 The ACPI CA can generate debug output. This document describes how to use this
13 The ACPI CA debug output is globally enabled by CONFIG_ACPI_DEBUG. If this
20 you're interested in. At boot-time, use the acpi.debug_layer and
21 acpi.debug_level kernel command line options. After boot, you can use the
22 debug_layer and debug_level files in /sys/module/acpi/parameters/ to control
29 specific part of the ACPI interpreter. To build the debug_layer bitmask, look
30 for the "#define _COMPONENT" in an ACPI source file.
32 You can set the debug_layer mask at boot-time using the acpi.debug_layer
34 to /sys/module/acpi/parameters/debug_layer.
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H A Dnamespace.rst5 ACPI Device Tree - Representation of ACPI Namespace
17 The Linux ACPI subsystem converts ACPI namespace objects into a Linux
19 receiving ACPI hotplug notification events. For each device object
21 /sys/bus/acpi/devices.
23 This document illustrates the structure of the ACPI device tree.
25 ACPI Definition Blocks
28 The ACPI firmware sets up RSDP (Root System Description Pointer) in the
30 Description Table). The XSDT always points to the FADT (Fixed ACPI
32 includes various fixed-length entries that describe fixed ACPI features
39 blocks that contain definitions of various objects, including ACPI
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H A Dmethod-tracing.rst30 /sys/module/acpi/parameters/debug_layer) and per-type level (known as
31 debug level, configured via /sys/module/acpi/parameters/debug_level).
46 # cd /sys/module/acpi/parameters
54 # cd /sys/module/acpi/parameters
58 # echo "method" > /sys/module/acpi/parameters/trace_state
63 # cd /sys/module/acpi/parameters
67 # echo "method-once" > /sys/module/acpi/parameters/trace_state
71 Refer to Documentation/firmware-guide/acpi/debug.rst for possible debug layer/level
74 Full path of a control method that can be found in the ACPI namespace.
112 # cd /sys/module/acpi/parameters
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/linux/Documentation/admin-guide/acpi/
H A Dinitrd_table_override.rst4 Upgrading ACPI tables via initrd
11 upgrade the ACPI execution environment that is defined by the ACPI tables
12 via upgrading the ACPI tables provided by the BIOS with an instrumented,
13 modified, more recent version one, or installing brand new ACPI tables.
19 For a full list of ACPI tables that can be upgraded/installed, take a look
21 drivers/acpi/tables.c.
23 All ACPI tables iasl (Intel's ACPI compiler and disassembler) knows should
27 - ACPI_SIG_FACS (does not have an ordinary ACPI table header)
44 ACPI BIOS table compatibility with the Linux kernel by modifying old
45 platform provided ACPI tables or inserting new ACPI tables.
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/linux/drivers/platform/x86/intel/
H A Drst.c6 #include <linux/acpi.h>
18 struct acpi_device *acpi; in irst_show_wakeup_events() local
22 acpi = to_acpi_device(dev); in irst_show_wakeup_events()
24 status = acpi_evaluate_integer(acpi->handle, "GFFS", NULL, &value); in irst_show_wakeup_events()
35 struct acpi_device *acpi; in irst_store_wakeup_events() local
40 acpi = to_acpi_device(dev); in irst_store_wakeup_events()
46 status = acpi_execute_simple_method(acpi->handle, "SFFS", value); in irst_store_wakeup_events()
62 struct acpi_device *acpi; in irst_show_wakeup_time() local
66 acpi = to_acpi_device(dev); in irst_show_wakeup_time()
68 status = acpi_evaluate_integer(acpi->handle, "GFTV", NULL, &value); in irst_show_wakeup_time()
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/linux/drivers/acpi/pmic/
H A DKconfig6 Select this option to enable support for ACPI operation
14 bool "ACPI operation region support for Bay Trail Crystal Cove PMIC"
17 This config adds ACPI operation region support for the Bay Trail
21 bool "ACPI operation region support for Cherry Trail Crystal Cove PMIC"
24 This config adds ACPI operation region support for the Cherry Trail
28 bool "ACPI operation region support for XPower AXP288 PMIC"
31 This config adds ACPI operation region support for XPower AXP288 PMIC.
34 bool "ACPI operation region support for BXT WhiskeyCove PMIC"
37 This config adds ACPI operation region support for BXT WhiskeyCove PMIC.
40 bool "ACPI operation region support for CHT Whiskey Cove PMIC"
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/linux/arch/riscv/kernel/
H A Dacpi.c3 * RISC-V Specific Low-Level ACPI Boot Support
16 #include <linux/acpi.h>
25 int acpi_noirq = 1; /* skip ACPI IRQ initialization */
29 int acpi_pci_disabled = 1; /* skip ACPI PCI scan and IRQ initialization */
43 /* "acpi=off" disables both ACPI table parsing and interpreter */ in parse_acpi()
46 else if (strcmp(arg, "on") == 0) /* prefer ACPI over DT */ in parse_acpi()
48 else if (strcmp(arg, "force") == 0) /* force ACPI to be enabled */ in parse_acpi()
55 early_param("acpi", parse_acpi);
72 * and carry out revision and ACPI HW reduced compliance tests in acpi_fadt_sanity_check()
88 * ACPI 6.6 is required for RISC-V as it introduces RISC-V specific in acpi_fadt_sanity_check()
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/linux/arch/arm64/kernel/
H A Dacpi.c3 * ARM64 Specific Low-Level ACPI Boot Support
13 #define pr_fmt(fmt) "ACPI: " fmt
15 #include <linux/acpi.h>
32 #include <acpi/ghes.h>
33 #include <acpi/processor.h>
39 int acpi_noirq = 1; /* skip ACPI IRQ initialization */
43 int acpi_pci_disabled = 1; /* skip ACPI PCI scan and IRQ initialization */
56 /* "acpi=off" disables both ACPI table parsing and interpreter */ in parse_acpi()
59 else if (strcmp(arg, "on") == 0) /* prefer ACPI over DT */ in parse_acpi()
61 else if (strcmp(arg, "force") == 0) /* force ACPI to be enabled */ in parse_acpi()
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/linux/tools/power/acpi/man/
H A Dacpidump.83 acpidump \- dump a system's ACPI tables to an ASCII file
12 dumps the systems ACPI tables to an ASCII file appropriate for
74 Acpi table [DSDT] - 15974 bytes written to DSDT.dat
75 Acpi table [FACS] - 64 bytes written to FACS.dat
76 Acpi table [FACP] - 116 bytes written to FACP.dat
77 Acpi table [APIC] - 120 bytes written to APIC.dat
78 Acpi table [MCFG] - 60 bytes written to MCFG.dat
79 Acpi table [SSDT] - 444 bytes written to SSDT1.dat
80 Acpi table [SSDT] - 439 bytes written to SSDT2.dat
81 Acpi table [SSDT] - 439 bytes written to SSDT3.dat
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/linux/drivers/acpi/acpica/
H A DMakefile10 # use acpi.o to put all files here into acpi.o modparam namespace
11 obj-y += acpi.o
13 acpi-y := \
31 acpi-y += \
48 acpi-y += \
77 acpi-y += \
87 acpi-$(CONFIG_PCI) += hwpci.o
88 acpi-$(ACPI_FUTURE_USAGE) += hwtimer.o
90 acpi-y += \
113 acpi-$(ACPI_FUTURE_USAGE) += nsdumpdv.o
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H A Dutstrtoul64.c9 #include <acpi/acpi.h>
24 * 2) Runtime "Explicit conversion" as defined in the ACPI specification.
25 * 3) Runtime "Implicit conversion" as defined in the ACPI specification.
35 * acpi_dump - ACPI table physical addresses
48 * In ACPI, the only place where octal numbers are supported is within
50 * interface. According the ACPI specification, there is no ACPI runtime
76 * acpi_dump - ACPI table physical addresses
162 * an "implicit conversion" by the ACPI specification. Used by
171 * Octal strings are not supported, as per the ACPI specification.
177 * Conversion rules as extracted from the ACPI specification:
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/linux/Documentation/PCI/
H A Dacpi-info.rst4 ACPI considerations for PCI host bridges
7 The general rule is that the ACPI namespace should describe everything the
11 host bridges, so the ACPI namespace must describe each host bridge, the
17 described via ACPI. The OS can discover them via the standard PCI
19 devices and read and size their BARs. However, ACPI may describe PCI
24 ACPI resource description is done via _CRS objects of devices in the ACPI
34 know early in boot, before it can parse the ACPI namespace. If a new table
40 ACPI, that device will have a specific _HID/_CID that tells the OS what
55 ACPI defines a Consumer/Producer bit to distinguish the bridge registers
57 BIOSes didn't use that bit correctly. The result is that the current ACPI
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/linux/Documentation/admin-guide/laptops/
H A Dthinkpad-acpi.rst2 ThinkPad ACPI Extras Driver
12 http://ibm-acpi.sf.net/
16 through the ACPI and ACPI EC framework, but not otherwise fully
17 supported by the generic Linux ACPI drivers.
19 This driver used to be named ibm-acpi until kernel 2.6.21 and release
20 0.13-20070314. It used to be in the drivers/acpi tree, but it was
21 moved to the drivers/misc tree and renamed to thinkpad-acpi for kernel
25 The driver is named "thinkpad-acpi". In some places, like module
29 "tpacpi" is used as a shorthand where "thinkpad-acpi" would be too
44 - ACPI sounds
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/linux/Documentation/driver-api/cxl/platform/
H A Dacpi.rst4 ACPI Tables
7 ACPI is the "Advanced Configuration and Power Interface", which is a standard
9 For the purpose of this theory of operation, when referring to "ACPI" we will
10 usually refer to "ACPI Tables" - which are the way a platform (BIOS/EFI)
13 The Following ACPI tables contain *static* configuration and performance data
19 acpi/cedt.rst
20 acpi/srat.rst
21 acpi/hmat.rst
22 acpi/slit.rst
23 acpi/dsdt.rst
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/linux/sound/soc/amd/acp/
H A DKconfig18 select SND_SOC_ACPI if ACPI
21 bool "AMD ACPI SDCA quirks"
27 Enable SDCA quirk support for AMD ACPI match tables.
28 This is compiled into the snd-soc-acpi-amd-match module.
46 select SND_SOC_ACPI if ACPI
51 depends on ACPI
59 depends on ACPI
71 depends on ACPI
87 depends on ACPI
102 depends on ACPI
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H A DMakefile13 snd-amd-sdw-acpi-y := amd-sdw-acpi.o
14 snd-amd-acpi-mach-y := amd-acpi-mach.o
26 snd-soc-acpi-amd-match-y := amd-acp63-acpi-match.o amd-acp70-acpi-match.o
27 snd-soc-acpi-amd-match-$(CONFIG_SND_SOC_ACPI_AMD_SDCA_QUIRKS) += soc-acpi-amd-sdca-quirks.o
37 obj-$(CONFIG_SND_SOC_AMD_ACPI_MACH) += snd-amd-acpi-mach.o
44 obj-$(CONFIG_SND_AMD_SOUNDWIRE_ACPI) += snd-amd-sdw-acpi.o
48 obj-$(CONFIG_SND_SOC_ACPI_AMD_MATCH) += snd-soc-acpi-amd-match.o
/linux/Documentation/ABI/testing/
H A Dsysfs-bus-acpi1 What: /sys/bus/acpi/devices/.../path
5 This attribute indicates the full path of ACPI namespace
10 fixed ACPI hardware features (like power and sleep
13 What: /sys/bus/acpi/devices/.../modalias
18 That is acpi:HHHHHHHH:[CCCCCCC:]. Where each HHHHHHHH or
21 What: /sys/bus/acpi/devices/.../hid
30 What: /sys/bus/acpi/devices/.../description
37 What: /sys/bus/acpi/devices/.../adr
42 _ADR control method, which is present for ACPI device
46 What: /sys/bus/acpi/devices/.../uid
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H A Dconfigfs-acpi1 What: /config/acpi
4 Contact: linux-acpi@vger.kernel.org
6 This represents the ACPI subsystem entry point directory. It
7 contains sub-groups corresponding to ACPI configurable options.
9 What: /config/acpi/table
14 This group contains the configuration for user defined ACPI
19 fill in the ACPI aml definitions. Once the aml
21 closed the table will be loaded and ACPI devices
37 - ACPI Specification minor version number
H A Dsysfs-platform-dptf4 Contact: linux-acpi@vger.kernel.org
11 Contact: linux-acpi@vger.kernel.org
19 Contact: linux-acpi@vger.kernel.org
27 Contact: linux-acpi@vger.kernel.org
43 Contact: linux-acpi@vger.kernel.org
50 Contact: linux-acpi@vger.kernel.org
57 Contact: linux-acpi@vger.kernel.org
64 Contact: linux-acpi@vger.kernel.org
71 Contact: linux-acpi@vger.kernel.org
78 Contact: linux-acpi@vger.kernel.org
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/linux/drivers/platform/x86/
H A DKconfig158 depends on ACPI
189 If you have an ACPI-WMI compatible Acer/ Wistron laptop, say Y or M
195 tristate "Advantech ACPI Software Button Driver"
196 depends on ACPI && INPUT
207 depends on ACPI && PCI
218 depends on ACPI
230 ACPI events and input events, and on the Lucid the built-in
238 If you have an ACPI-compatible ASUS laptop, say Y or M here.
242 depends on ACPI
311 If you have an ACPI-WMI compatible Asus Notebook, say Y or M
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/linux/Documentation/power/
H A Dapm-acpi.rst2 APM or ACPI?
7 Advanced Configuration and Power Interface (ACPI). ACPI is the newer
13 build a kernel with both ACPI and APM enabled (as of 2.3.x ACPI is
14 enabled by default). If a working ACPI implementation is found, the
15 ACPI driver will override and disable APM, otherwise the APM driver
18 No, sorry, you cannot have both ACPI and APM enabled and running at
19 once. Some people with broken ACPI or broken APM implementations
26 Both APM and ACPI rely on user-space daemons, apmd and acpid
30 Go ahead and start both. If ACPI or APM is not available on your

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