What: /sys/kernel/debug/scmi//instance_name Date: March 2023 KernelVersion: 6.3 Contact: cristian.marussi@arm.com Description: The name of the underlying SCMI instance described by all the debugfs accessors rooted at /sys/kernel/debug/scmi/, expressed as the full name of the top DT SCMI node under which this SCMI instance is rooted. Users: Debugging, any userspace test suite What: /sys/kernel/debug/scmi//atomic_threshold_us Date: March 2023 KernelVersion: 6.3 Contact: cristian.marussi@arm.com Description: An optional time value, expressed in microseconds, representing, on this SCMI instance , the threshold above which any SCMI command, advertised to have an higher-than-threshold execution latency, should not be considered for atomic mode of operation, even if requested. Users: Debugging, any userspace test suite What: /sys/kernel/debug/scmi//transport/type Date: March 2023 KernelVersion: 6.3 Contact: cristian.marussi@arm.com Description: A string representing the type of transport configured for this SCMI instance . Users: Debugging, any userspace test suite What: /sys/kernel/debug/scmi//transport/is_atomic Date: March 2023 KernelVersion: 6.3 Contact: cristian.marussi@arm.com Description: A boolean stating if the transport configured on the underlying SCMI instance is capable of atomic mode of operation. Users: Debugging, any userspace test suite What: /sys/kernel/debug/scmi//transport/max_rx_timeout_ms Date: March 2023 KernelVersion: 6.3 Contact: cristian.marussi@arm.com Description: Timeout in milliseconds allowed for SCMI synchronous replies for the currently configured SCMI transport for instance . Users: Debugging, any userspace test suite What: /sys/kernel/debug/scmi//transport/max_msg_size Date: March 2023 KernelVersion: 6.3 Contact: cristian.marussi@arm.com Description: Max message size of allowed SCMI messages for the currently configured SCMI transport for instance . Users: Debugging, any userspace test suite What: /sys/kernel/debug/scmi//transport/tx_max_msg Date: March 2023 KernelVersion: 6.3 Contact: cristian.marussi@arm.com Description: Max number of concurrently allowed in-flight SCMI messages for the currently configured SCMI transport for instance on the TX channels. Users: Debugging, any userspace test suite What: /sys/kernel/debug/scmi//transport/rx_max_msg Date: March 2023 KernelVersion: 6.3 Contact: cristian.marussi@arm.com Description: Max number of concurrently allowed in-flight SCMI messages for the currently configured SCMI transport for instance on the RX channels. Users: Debugging, any userspace test suite