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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
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