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487c407d57
Add a common framework to describe SCMI quirks and associate them with a specific platform or a specific set of SCMI firmware versions. All the matching SCMI quirks will be enabled when the SCMI core stack probes and after all the needed SCMI firmware versioning information was retrieved using the base protocol. Tested-by: Johan Hovold <johan+linaro@kernel.org> Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> Message-Id: <20250429141108.406045-3-cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
102 lines
3.9 KiB
Text
102 lines
3.9 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
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menu "ARM System Control and Management Interface Protocol"
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config ARM_SCMI_PROTOCOL
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tristate "ARM System Control and Management Interface (SCMI) Message Protocol"
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depends on ARM || ARM64 || COMPILE_TEST
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help
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ARM System Control and Management Interface (SCMI) protocol is a
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set of operating system-independent software interfaces that are
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used in system management. SCMI is extensible and currently provides
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interfaces for: Discovery and self-description of the interfaces
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it supports, Power domain management which is the ability to place
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a given device or domain into the various power-saving states that
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it supports, Performance management which is the ability to control
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the performance of a domain that is composed of compute engines
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such as application processors and other accelerators, Clock
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management which is the ability to set and inquire rates on platform
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managed clocks and Sensor management which is the ability to read
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sensor data, and be notified of sensor value.
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This protocol library provides interface for all the client drivers
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making use of the features offered by the SCMI.
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if ARM_SCMI_PROTOCOL
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config ARM_SCMI_NEED_DEBUGFS
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bool
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help
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This declares whether at least one SCMI facility is configured
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which needs debugfs support. When selected causess the creation
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of a common SCMI debugfs root directory.
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config ARM_SCMI_RAW_MODE_SUPPORT
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bool "Enable support for SCMI Raw transmission mode"
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depends on DEBUG_FS
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select ARM_SCMI_NEED_DEBUGFS
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help
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Enable support for SCMI Raw transmission mode.
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If enabled allows the direct injection and snooping of SCMI bare
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messages through a dedicated debugfs interface.
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It is meant to be used by SCMI compliance/testing suites.
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When enabled regular SCMI drivers interactions are inhibited in
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order to avoid unexpected interactions with the SCMI Raw message
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flow. If unsure say N.
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config ARM_SCMI_RAW_MODE_SUPPORT_COEX
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bool "Allow SCMI Raw mode coexistence with normal SCMI stack"
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depends on ARM_SCMI_RAW_MODE_SUPPORT
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help
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Allow SCMI Raw transmission mode to coexist with normal SCMI stack.
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This will allow regular SCMI drivers to register with the core and
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operate normally, thing which could make an SCMI test suite using the
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SCMI Raw mode support unreliable. If unsure, say N.
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config ARM_SCMI_DEBUG_COUNTERS
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bool "Enable SCMI communication debug metrics tracking"
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select ARM_SCMI_NEED_DEBUGFS
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depends on DEBUG_FS
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default n
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help
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Enables tracking of some key communication metrics for debug
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purposes. It may track metrics like how many messages were sent
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or received, were there any failures, what kind of failures, ..etc.
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Enable this option to create a new debugfs directory which contains
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such useful debug counters. This can be helpful for debugging and
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SCMI monitoring.
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config ARM_SCMI_QUIRKS
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bool "Enable SCMI Quirks framework"
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depends on JUMP_LABEL || COMPILE_TEST
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default y
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help
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Enables support for SCMI Quirks framework to workaround SCMI platform
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firmware bugs on system already deployed in the wild.
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The framework allows the definition of platform-specific code quirks
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that will be associated and enabled only on the desired platforms
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depending on the SCMI firmware advertised versions and/or machine
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compatibles.
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source "drivers/firmware/arm_scmi/transports/Kconfig"
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source "drivers/firmware/arm_scmi/vendors/imx/Kconfig"
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endif #ARM_SCMI_PROTOCOL
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config ARM_SCMI_POWER_CONTROL
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tristate "SCMI system power control driver"
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depends on ARM_SCMI_PROTOCOL || (COMPILE_TEST && OF)
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help
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This enables System Power control logic which binds system shutdown or
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reboot actions to SCMI System Power notifications generated by SCP
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firmware.
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This driver can also be built as a module. If so, the module will be
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called scmi_power_control. Note this may needed early in boot to catch
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early shutdown/reboot SCMI requests.
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endmenu
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