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Author	SHA1	Message	Date
Cristian Marussi	8b276b59cc	include: trace: Add new scmi_xfer_response_wait event Having a new step to trace SCMI stack while it waits for synchronous responses is useful to analyze system performance when changing waiting mode between polling and interrupt completion. Link: https://lore.kernel.org/r/20211129191156.29322-5-cristian.marussi@arm.com Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>	2021-12-13 17:45:36 +00:00
Sudeep Holla	bad0d73b65	firmware: arm_scmi: Use signed integer to report transfer status Currently the trace event 'scmi_xfer_end' reports the status of the transfer using the unsigned status field read from the firmware which may not be easy to interpret. It may also miss to emit any timeouts that happen in the driver resulting in emitting garbage in the status field in those scenarios. Let us use signed integer so that error values are emitted out after they are mapped from firmware error formats to standard linux error codes. While at this, also include any timeouts in the driver itself. Link: https://lore.kernel.org/r/20200609134503.55860-1-sudeep.holla@arm.com Cc: Jim Quinlan <james.quinlan@broadcom.com> Cc: Lukasz Luba <lukasz.luba@arm.com> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>	2020-06-30 14:07:08 +01:00
Lukasz Luba	257d0e20ec	include: trace: Add SCMI header with trace events Adding trace events would help to measure the speed of the communication channel. It can be also potentially used helpful during investigation of some issues platforms which use different transport layer. Update also MAINTAINERS file with information that the new trace events are maintained. Suggested-by: Jim Quinlan <james.quinlan@broadcom.com> Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>	2019-12-30 12:34:29 +00:00

Author

SHA1

Message

Date

Cristian Marussi

8b276b59cc

include: trace: Add new scmi_xfer_response_wait event

Having a new step to trace SCMI stack while it waits for synchronous
responses is useful to analyze system performance when changing waiting
mode between polling and interrupt completion.

Link: https://lore.kernel.org/r/20211129191156.29322-5-cristian.marussi@arm.com
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

2021-12-13 17:45:36 +00:00

Sudeep Holla

bad0d73b65

firmware: arm_scmi: Use signed integer to report transfer status

Currently the trace event 'scmi_xfer_end' reports the status of the
transfer using the unsigned status field read from the firmware which
may not be easy to interpret. It may also miss to emit any timeouts
that happen in the driver resulting in emitting garbage in the status
field in those scenarios.

Let us use signed integer so that error values are emitted out after
they are mapped from firmware error formats to standard linux error
codes. While at this, also include any timeouts in the driver itself.

Link: https://lore.kernel.org/r/20200609134503.55860-1-sudeep.holla@arm.com
Cc: Jim Quinlan <james.quinlan@broadcom.com>
Cc: Lukasz Luba <lukasz.luba@arm.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

2020-06-30 14:07:08 +01:00

Lukasz Luba

257d0e20ec

include: trace: Add SCMI header with trace events

Adding trace events would help to measure the speed of the communication
channel. It can be also potentially used helpful during investigation
of some issues platforms which use different transport layer.

Update also MAINTAINERS file with information that the new trace events
are maintained.

Suggested-by: Jim Quinlan <james.quinlan@broadcom.com>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

2019-12-30 12:34:29 +00:00

3 Commits