linux-kernel - [V4 2/2] remoteproc: qcom_q6v5: Introduce panic handler for MSS

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Message-ID: <1653396335-6295-3-git-send-email-quic_sibis@quicinc.com>
Date:   Tue, 24 May 2022 18:15:35 +0530
From:   Sibi Sankar <quic_sibis@...cinc.com>
To:     <bjorn.andersson@...aro.org>
CC:     <agross@...nel.org>, <mathieu.poirier@...aro.org>,
        <linux-arm-msm@...r.kernel.org>,
        <linux-remoteproc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Sibi Sankar <quic_sibis@...cinc.com>
Subject: [V4 2/2] remoteproc: qcom_q6v5: Introduce panic handler for MSS

Make the MSS q6v5 remoteproc drivers implement the panic handler
that will invoke a stop to prepare the remoteprocs for post mortem
debugging.

Signed-off-by: Sibi Sankar <quic_sibis@...cinc.com>
---
 drivers/remoteproc/qcom_q6v5_mss.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index 46ca841371c8..8a66e70e3bfd 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -1623,11 +1623,19 @@ static int qcom_q6v5_register_dump_segments(struct rproc *rproc,
 	return ret;
 }
 
+static unsigned long q6v5_panic(struct rproc *rproc)
+{
+	struct q6v5 *qproc = (struct q6v5 *)rproc->priv;
+
+	return qcom_q6v5_panic(&qproc->q6v5);
+}
+
 static const struct rproc_ops q6v5_ops = {
 	.start = q6v5_start,
 	.stop = q6v5_stop,
 	.parse_fw = qcom_q6v5_register_dump_segments,
 	.load = q6v5_load,
+	.panic = q6v5_panic,
 };
 
 static void qcom_msa_handover(struct qcom_q6v5 *q6v5)
-- 
2.7.4