drivers/firmware/Kconfig

Source file repositories/reference/linux-study-clean/drivers/firmware/Kconfig

File Facts

System
Linux kernel
Corpus path
drivers/firmware/Kconfig
Extension
[no extension]
Size
11277 bytes
Lines
306
Domain
Driver Families
Bucket
drivers/firmware
Inferred role
Driver Families: build/configuration rule
Status
atlas-only

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0-only
#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.rst.
#

menu "Firmware Drivers"

source "drivers/firmware/arm_scmi/Kconfig"

config ARM_SCPI_PROTOCOL
	tristate "ARM System Control and Power Interface (SCPI) Message Protocol"
	depends on ARM || ARM64 || COMPILE_TEST
	depends on MAILBOX
	help
	  System Control and Power Interface (SCPI) Message Protocol is
	  defined for the purpose of communication between the Application
	  Cores(AP) and the System Control Processor(SCP). The MHU peripheral
	  provides a mechanism for inter-processor communication between SCP
	  and AP.

	  SCP controls most of the power management on the Application
	  Processors. It offers control and management of: the core/cluster
	  power states, various power domain DVFS including the core/cluster,
	  certain system clocks configuration, thermal sensors and many
	  others.

	  This protocol library provides interface for all the client drivers
	  making use of the features offered by the SCP.

config ARM_SDE_INTERFACE
	bool "ARM Software Delegated Exception Interface (SDEI)"
	depends on ARM64
	help
	  The Software Delegated Exception Interface (SDEI) is an ARM
	  standard for registering callbacks from the platform firmware
	  into the OS. This is typically used to implement RAS notifications.

config EDD
	tristate "BIOS Enhanced Disk Drive calls determine boot disk"
	depends on X86
	help
	  Say Y or M here if you want to enable BIOS Enhanced Disk Drive
	  Services real mode BIOS calls to determine which disk
	  BIOS tries boot from.  This information is then exported via sysfs.

	  This option is experimental and is known to fail to boot on some
          obscure configurations. Most disk controller BIOS vendors do
          not yet implement this feature.

config EDD_OFF
	bool "Sets default behavior for EDD detection to off"
	depends on EDD
	default n
	help
	  Say Y if you want EDD disabled by default, even though it is compiled into the
	  kernel. Say N if you want EDD enabled by default. EDD can be dynamically set
	  using the kernel parameter 'edd={on|skipmbr|off}'.

config FIRMWARE_MEMMAP
    bool "Add firmware-provided memory map to sysfs" if EXPERT
    default X86
    help
      Add the firmware-provided (unmodified) memory map to /sys/firmware/memmap.
      That memory map is used for example by kexec to set up parameter area
      for the next kernel, but can also be used for debugging purposes.

      See also Documentation/ABI/testing/sysfs-firmware-memmap.

config DMIID

Annotation

Implementation Notes