| # SPDX-License-Identifier: GPL-2.0-only | |
| menu "ARM System Control and Management Interface Protocol" | |
| config ARM_SCMI_PROTOCOL | |
| tristate "ARM System Control and Management Interface (SCMI) Message Protocol" | |
| depends on ARM || ARM64 || COMPILE_TEST | |
| help | |
| ARM System Control and Management Interface (SCMI) protocol is a | |
| set of operating system-independent software interfaces that are | |
| used in system management. SCMI is extensible and currently provides | |
| interfaces for: Discovery and self-description of the interfaces | |
| it supports, Power domain management which is the ability to place | |
| a given device or domain into the various power-saving states that | |
| it supports, Performance management which is the ability to control | |
| the performance of a domain that is composed of compute engines | |
| such as application processors and other accelerators, Clock | |
| management which is the ability to set and inquire rates on platform | |
| managed clocks and Sensor management which is the ability to read | |
| sensor data, and be notified of sensor value. | |
| This protocol library provides interface for all the client drivers | |
| making use of the features offered by the SCMI. | |
| if ARM_SCMI_PROTOCOL | |
| config ARM_SCMI_HAVE_TRANSPORT | |
| bool | |
| help | |
| This declares whether at least one SCMI transport has been configured. | |
| Used to trigger a build bug when trying to build SCMI without any | |
| configured transport. | |
| config ARM_SCMI_HAVE_SHMEM | |
| bool | |
| help | |
| This declares whether a shared memory based transport for SCMI is | |
| available. | |
| config ARM_SCMI_HAVE_MSG | |
| bool | |
| help | |
| This declares whether a message passing based transport for SCMI is | |
| available. | |
| config ARM_SCMI_TRANSPORT_MAILBOX | |
| bool "SCMI transport based on Mailbox" | |
| depends on MAILBOX | |
| select ARM_SCMI_HAVE_TRANSPORT | |
| select ARM_SCMI_HAVE_SHMEM | |
| default y | |
| help | |
| Enable mailbox based transport for SCMI. | |
| If you want the ARM SCMI PROTOCOL stack to include support for a | |
| transport based on mailboxes, answer Y. | |
| config ARM_SCMI_TRANSPORT_SMC | |
| bool "SCMI transport based on SMC" | |
| depends on HAVE_ARM_SMCCC_DISCOVERY | |
| select ARM_SCMI_HAVE_TRANSPORT | |
| select ARM_SCMI_HAVE_SHMEM | |
| default y | |
| help | |
| Enable SMC based transport for SCMI. | |
| If you want the ARM SCMI PROTOCOL stack to include support for a | |
| transport based on SMC, answer Y. | |
| config ARM_SCMI_TRANSPORT_VIRTIO | |
| bool "SCMI transport based on VirtIO" | |
| depends on VIRTIO=y || VIRTIO=ARM_SCMI_PROTOCOL | |
| select ARM_SCMI_HAVE_TRANSPORT | |
| select ARM_SCMI_HAVE_MSG | |
| help | |
| This enables the virtio based transport for SCMI. | |
| If you want the ARM SCMI PROTOCOL stack to include support for a | |
| transport based on VirtIO, answer Y. | |
| endif #ARM_SCMI_PROTOCOL | |
| config ARM_SCMI_POWER_DOMAIN | |
| tristate "SCMI power domain driver" | |
| depends on ARM_SCMI_PROTOCOL || (COMPILE_TEST && OF) | |
| default y | |
| select PM_GENERIC_DOMAINS if PM | |
| help | |
| This enables support for the SCMI power domains which can be | |
| enabled or disabled via the SCP firmware | |
| This driver can also be built as a module. If so, the module | |
| will be called scmi_pm_domain. Note this may needed early in boot | |
| before rootfs may be available. | |
| endmenu |