| # 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 |
| 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 |
