xref: /kernel/linux/linux-6.6/Documentation/ABI/testing/debugfs-scmi (revision 62306a36)

What:		/sys/kernel/debug/scmi/<n>/instance_name
Date:		March 2023
KernelVersion:	6.3
Contact:	cristian.marussi@arm.com
Description:	The name of the underlying SCMI instance <n> described by
		all the debugfs accessors rooted at /sys/kernel/debug/scmi/<n>,
		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/<n>/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 <n>, 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/<n>/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 <n>.
Users:		Debugging, any userspace test suite

What:		/sys/kernel/debug/scmi/<n>/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 <n> is capable of atomic mode of operation.
Users:		Debugging, any userspace test suite

What:		/sys/kernel/debug/scmi/<n>/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 <n>.
Users:		Debugging, any userspace test suite

What:		/sys/kernel/debug/scmi/<n>/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 <n>.
Users:		Debugging, any userspace test suite

What:		/sys/kernel/debug/scmi/<n>/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 <n> on the
		TX channels.
Users:		Debugging, any userspace test suite

What:		/sys/kernel/debug/scmi/<n>/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 <n> on the
		RX channels.
Users:		Debugging, any userspace test suite