linux-kernel - [PATCH v6 05/16] firmware: arm_scmi: Use new trace event scmi_xfer_response

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Date:   Mon, 22 Nov 2021 23:06:29 +0000
From:   Cristian Marussi <cristian.marussi@....com>
To:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     sudeep.holla@....com, james.quinlan@...adcom.com,
        Jonathan.Cameron@...wei.com, f.fainelli@...il.com,
        vincent.guittot@...aro.org, souvik.chakravarty@....com,
        cristian.marussi@....com
Subject: [PATCH v6 05/16] firmware: arm_scmi: Use new trace event scmi_xfer_response_wait

Use new trace event to mark start of waiting for response section.

Signed-off-by: Cristian Marussi <cristian.marussi@....com>
---
v5 --> v6
- removed atomic flag / poll is enough
- added timeout field
v4 --> v5
- consider atomic_enable flag too
---
 drivers/firmware/arm_scmi/driver.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c
index 9a8d6bfd4ebb..476b91845e40 100644
--- a/drivers/firmware/arm_scmi/driver.c
+++ b/drivers/firmware/arm_scmi/driver.c
@@ -757,6 +757,11 @@ static int scmi_wait_for_message_response(struct scmi_chan_info *cinfo,
 	struct device *dev = info->dev;
 	int ret = 0, timeout_ms = info->desc->max_rx_timeout_ms;
 
+	trace_scmi_xfer_response_wait(xfer->transfer_id, xfer->hdr.id,
+				      xfer->hdr.protocol_id, xfer->hdr.seq,
+				      timeout_ms,
+				      xfer->hdr.poll_completion);
+
 	if (xfer->hdr.poll_completion) {
 		ktime_t stop = ktime_add_ms(ktime_get(), timeout_ms);
 
-- 
2.17.1