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/linux/drivers/net/wireless/ath/ath12k/
H A Dacpi.c8 #include "acpi.h"
19 ath12k_dbg(ab, ATH12K_DBG_BOOT, "invalid acpi handler\n"); in ath12k_acpi_dsm_get_data()
32 ab->acpi.func_bit = obj->integer.value; in ath12k_acpi_dsm_get_data()
37 ath12k_warn(ab, "invalid ACPI DSM TAS config size: %d\n", in ath12k_acpi_dsm_get_data()
43 memcpy(&ab->acpi.tas_cfg, obj->buffer.pointer, in ath12k_acpi_dsm_get_data()
49 ath12k_warn(ab, "invalid ACPI DSM TAS data size: %d\n", in ath12k_acpi_dsm_get_data()
55 memcpy(&ab->acpi.tas_sar_power_table, obj->buffer.pointer, in ath12k_acpi_dsm_get_data()
61 ath12k_warn(ab, "invalid ACPI BIOS SAR data size: %d\n", in ath12k_acpi_dsm_get_data()
67 memcpy(&ab->acpi.bios_sar_data, obj->buffer.pointer, in ath12k_acpi_dsm_get_data()
73 ath12k_warn(ab, "invalid ACPI GEO OFFSET data size: %d\n", in ath12k_acpi_dsm_get_data()
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/linux/drivers/acpi/
H A DMakefile3 # Makefile for the Linux ACPI interpreter
9 # ACPI Boot-Time Table Parsing
19 # ACPI Core Subsystem (Interpreter)
21 obj-$(CONFIG_ACPI) += acpi.o \
24 # All the builtin files are in the "acpi." module_param namespace.
25 acpi-y += osi.o osl.o utils.o reboot.o
26 acpi-y += nvs.o
29 acpi-y += wakeup.o
30 acpi-$(CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT) += sleep.o
31 acpi-y += device_sysfs.o device_pm.o
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/linux/sound/soc/intel/common/
H A DMakefile4 snd-soc-acpi-intel-match-y := soc-acpi-intel-byt-match.o soc-acpi-intel-cht-match.o \
5 soc-acpi-intel-hsw-bdw-match.o \
6 soc-acpi-intel-skl-match.o soc-acpi-intel-kbl-match.o \
7 soc-acpi-intel-bxt-match.o soc-acpi-intel-glk-match.o \
8 soc-acpi-intel-cnl-match.o soc-acpi-intel-cfl-match.o \
9 soc-acpi-intel-cml-match.o soc-acpi-intel-icl-match.o \
10 soc-acpi-intel-tgl-match.o soc-acpi-intel-ehl-match.o \
11 soc-acpi-intel-jsl-match.o soc-acpi-intel-adl-match.o \
12 soc-acpi-intel-rpl-match.o soc-acpi-intel-mtl-match.o \
13 soc-acpi-intel-arl-match.o \
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/linux/Documentation/arch/arm64/
H A Darm-acpi.rst2 ACPI on Arm systems
5 ACPI can be used for Armv8 and Armv9 systems designed to follow
12 The Arm kernel implements the reduced hardware model of ACPI version
16 by the specification can be found via http://www.uefi.org/acpi.
19 or cannot be described using the mechanisms defined in the required ACPI
20 specifications, then ACPI may not be a good fit for the hardware.
25 ACPI and Linux only, on an Arm system -- that is, what Linux expects of
26 ACPI and what ACPI can expect of Linux.
29 Why ACPI on Arm?
31 Before examining the details of the interface between ACPI and Linux, it is
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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 Denumeration.rst4 ACPI Based Device Enumeration
7 ACPI 5 introduced a set of new resources (UartTSerialBus, I2cSerialBus,
12 SoC/Chipset to appear only in ACPI namespace. These are typically devices
26 As both ACPI and Device Tree represent a tree of devices (and their
30 The ACPI implementation enumerates devices behind busses (platform, SPI,
32 to their ACPI handle in the ACPI namespace.
35 enumerated from ACPI namespace. This handle can be used to extract other
43 for the device and add supported ACPI IDs. If this same IP-block is used on
44 some other non-ACPI platform, the driver might work out of the box or needs
47 Adding ACPI support for an existing driver should be pretty
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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/drivers/ata/
H A Dpata_acpi.c3 * ACPI PATA driver
15 #include <linux/acpi.h>
40 struct pata_acpi *acpi = ap->private_data; in pacpi_pre_reset() local
41 if (ACPI_HANDLE(&ap->tdev) == NULL || ata_acpi_gtm(ap, &acpi->gtm) < 0) in pacpi_pre_reset()
56 struct pata_acpi *acpi = ap->private_data; in pacpi_cable_detect() local
58 if ((acpi->mask[0] | acpi->mask[1]) & (0xF8 << ATA_SHIFT_UDMA)) in pacpi_cable_detect()
65 * pacpi_discover_modes - filter non ACPI modes
69 * Try the modes available and see which ones the ACPI method will
70 * set up sensibly. From this we get a mask of ACPI modes we can use
75 struct pata_acpi *acpi = ap->private_data; in pacpi_discover_modes() local
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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>
17 struct acpi_device *acpi; in irst_show_wakeup_events() local
21 acpi = to_acpi_device(dev); in irst_show_wakeup_events()
23 status = acpi_evaluate_integer(acpi->handle, "GFFS", NULL, &value); in irst_show_wakeup_events()
34 struct acpi_device *acpi; in irst_store_wakeup_events() local
39 acpi = to_acpi_device(dev); in irst_store_wakeup_events()
45 status = acpi_execute_simple_method(acpi->handle, "SFFS", value); in irst_store_wakeup_events()
61 struct acpi_device *acpi; in irst_show_wakeup_time() local
65 acpi = to_acpi_device(dev); in irst_show_wakeup_time()
67 status = acpi_evaluate_integer(acpi->handle, "GFTV", NULL, &value); in irst_show_wakeup_time()
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H A DKconfig20 depends on ACPI
33 depends on ACPI
45 tristate "Intel ACPI INT0002 Virtual GPIO driver"
46 depends on GPIOLIB && ACPI && PM_SLEEP
55 This is modelled in ACPI through the INT0002 ACPI device, which is
56 called a "Virtual GPIO controller" in ACPI because it defines the
58 methods as would be done for a real GPIO interrupt in ACPI.
65 depends on ACPI
67 depends on RFKILL && BACKLIGHT_CLASS_DEVICE && ACPI
105 tristate "Intel Cherry Trail Whiskey Cove ACPI INT33FE Driver"
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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>
24 int acpi_noirq = 1; /* skip ACPI IRQ initialization */
28 int acpi_pci_disabled = 1; /* skip ACPI PCI scan and IRQ initialization */
42 /* "acpi=off" disables both ACPI table parsing and interpreter */ in parse_acpi()
45 else if (strcmp(arg, "on") == 0) /* prefer ACPI over DT */ in parse_acpi()
47 else if (strcmp(arg, "force") == 0) /* force ACPI to be enabled */ in parse_acpi()
54 early_param("acpi", parse_acpi);
71 * and carry out revision and ACPI HW reduced compliancy tests in acpi_fadt_sanity_check()
89 * the ACPI spec, we need to update this check for exact minor revision in acpi_fadt_sanity_check()
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/linux/Documentation/wmi/
H A Dacpi-interface.rst4 ACPI WMI interface
7 The ACPI WMI interface is a proprietary extension of the ACPI specification made
9 objects inside their ACPI firmware. Typical functions implemented over ACPI WMI
12 PNP0C14 ACPI device
15 Discovery of WMI objects is handled by defining ACPI devices with a PNP ID
16 of ``PNP0C14``. These devices will contain a set of ACPI buffers and methods
19 unique ACPI UID.
46 The method/notification ID is used to construct the ACPI method names used for
49 WQxx ACPI methods
53 by this required ACPI method. The last two characters of the ACPI method name
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/linux/drivers/platform/x86/
H A Dclassmate-laptop.c11 #include <linux/acpi.h>
40 static int cmpc_add_acpi_notify_device(struct acpi_device *acpi, char *name, in cmpc_add_acpi_notify_device() argument
50 inputdev->dev.parent = &acpi->dev; in cmpc_add_acpi_notify_device()
57 dev_set_drvdata(&acpi->dev, inputdev); in cmpc_add_acpi_notify_device()
61 static int cmpc_remove_acpi_notify_device(struct acpi_device *acpi) in cmpc_remove_acpi_notify_device() argument
63 struct input_dev *inputdev = dev_get_drvdata(&acpi->dev); in cmpc_remove_acpi_notify_device()
203 struct acpi_device *acpi; in cmpc_accel_sensitivity_show_v4() local
207 acpi = to_acpi_device(dev); in cmpc_accel_sensitivity_show_v4()
208 inputdev = dev_get_drvdata(&acpi->dev); in cmpc_accel_sensitivity_show_v4()
218 struct acpi_device *acpi; in cmpc_accel_sensitivity_store_v4() local
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H A DKconfig21 depends on ACPI
23 This driver adds support for the ACPI-WMI (Windows Management
26 ACPI-WMI is a proprietary extension to ACPI to expose parts of the
27 ACPI firmware to userspace - this is done through various vendor
38 any ACPI-WMI devices.
140 depends on ACPI
150 depends on ACPI && THERMAL
171 depends on ACPI
201 If you have an ACPI-WMI compatible Acer/ Wistron laptop, say Y or M
207 tristate "Advantech ACPI Software Button Driver"
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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/include/acpi/
H A Dactbl.h4 * Name: actbl.h - Basic ACPI Table Definitions
15 * Fundamental ACPI tables
17 * This file contains definitions for the ACPI tables that are directly consumed
18 * by ACPICA. All other tables are consumed by the OS-dependent ACPI-related
21 * The RSDP and FACS do not use the common ACPI table header. All other ACPI
32 #define ACPI_SIG_FADT "FACP" /* Fixed ACPI Description Table */
33 #define ACPI_SIG_FACS "FACS" /* Firmware ACPI Control Structure */
44 * All tables and structures must be byte-packed to match the ACPI
55 * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
63 * Master ACPI Table Header. This common header is used by all ACPI tables
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H A Dacpi.h4 * Name: acpi.h - Master public include file used to interface to ACPICA
18 * all ACPI tables (FADT, MADT, etc.)
22 #include <acpi/platform/acenv.h> /* Environment-specific items */
23 #include <acpi/acnames.h> /* Common ACPI names and strings */
24 #include <acpi/actypes.h> /* ACPICA data types and structures */
25 #include <acpi/acexcep.h> /* ACPICA exceptions */
26 #include <acpi/actbl.h> /* ACPI table definitions */
27 #include <acpi/acrestyp.h> /* Resource Descriptor structs */
28 #include <acpi/platform/acenvex.h> /* Extra environment-specific items */
29 #include <acpi/acoutput.h> /* Error output and Debug macros */
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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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/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/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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