mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-27 19:29:37 +00:00
Code Issues Releases Wiki Activity

firmware: arm_scmi: Use new SCMI full message tracing

Browse source 
Add full message tracing for all transmitted and successfully received SCMI
commands, replies and notifications.

Link: https://lore.kernel.org/r/20220630173135.2086631-3-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
This commit is contained in:
Cristian Marussi 2022-06-30 18:31:35 +01:00 committed by Sudeep Holla
parent 2bd0467074
commit b60e088682
1 changed files with 21 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
drivers/firmware/arm_scmi/driver.c
View file

@ -660,6 +660,11 @@ static void scmi_handle_notification(struct scmi_chan_info *cinfo,
smp_store_mb(xfer->priv, priv);
info->desc->ops->fetch_notification(cinfo, info->desc->max_msg_size,
xfer);
trace_scmi_msg_dump(xfer->hdr.protocol_id, xfer->hdr.id, "NOTI",
xfer->hdr.seq, xfer->hdr.status,
xfer->rx.buf, xfer->rx.len);
scmi_notify(cinfo->handle, xfer->hdr.protocol_id,
xfer->hdr.id, xfer->rx.buf, xfer->rx.len, ts);
@ -694,6 +699,12 @@ static void scmi_handle_response(struct scmi_chan_info *cinfo,
smp_store_mb(xfer->priv, priv);
info->desc->ops->fetch_response(cinfo, xfer);
trace_scmi_msg_dump(xfer->hdr.protocol_id, xfer->hdr.id,
xfer->hdr.type == MSG_TYPE_DELAYED_RESP ?
"DLYD" : "RESP",
xfer->hdr.seq, xfer->hdr.status,
xfer->rx.buf, xfer->rx.len);
trace_scmi_rx_done(xfer->transfer_id, xfer->hdr.id,
xfer->hdr.protocol_id, xfer->hdr.seq,
xfer->hdr.type);
@ -827,6 +838,12 @@ static int scmi_wait_for_message_response(struct scmi_chan_info *cinfo,
xfer->state = SCMI_XFER_RESP_OK;
}
spin_unlock_irqrestore(&xfer->lock, flags);
/* Trace polled replies. */
trace_scmi_msg_dump(xfer->hdr.protocol_id, xfer->hdr.id,
"RESP",
xfer->hdr.seq, xfer->hdr.status,
xfer->rx.buf, xfer->rx.len);
}
} else {
/* And we wait for the response. */
@ -903,6 +920,10 @@ static int do_xfer(const struct scmi_protocol_handle *ph,
return ret;
}
trace_scmi_msg_dump(xfer->hdr.protocol_id, xfer->hdr.id, "CMND",
xfer->hdr.seq, xfer->hdr.status,
xfer->tx.buf, xfer->tx.len);
ret = scmi_wait_for_message_response(cinfo, xfer);
if (!ret && xfer->hdr.status)
ret = scmi_to_linux_errno(xfer->hdr.status);