linux-kernel - [PATCH 9/9] remoteproc: qcom: Introduce panic handler for PAS and ADSP

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Message-Id: <20190807053942.9836-10-bjorn.andersson@linaro.org>
Date:   Tue,  6 Aug 2019 22:39:42 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Ohad Ben-Cohen <ohad@...ery.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Andy Gross <agross@...nel.org>, Sibi Sankar <sibis@...eaurora.org>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-remoteproc@...r.kernel.org
Subject: [PATCH 9/9] remoteproc: qcom: Introduce panic handler for PAS and ADSP

Make the PAS and ADSP/CDSP remoteproc drivers implement the panic
handler that will invoke a stop to prepare the remoteprocs for post
mortem debugging.

Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---
 drivers/remoteproc/qcom_q6v5_adsp.c | 8 ++++++++
 drivers/remoteproc/qcom_q6v5_pas.c  | 8 ++++++++
 2 files changed, 16 insertions(+)

diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c
index e953886b2eb7..3de1683903db 100644
--- a/drivers/remoteproc/qcom_q6v5_adsp.c
+++ b/drivers/remoteproc/qcom_q6v5_adsp.c
@@ -282,12 +282,20 @@ static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len)
 	return adsp->mem_region + offset;
 }
 
+static void adsp_panic(struct rproc *rproc)
+{
+	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
+
+	qcom_q6v5_panic(&adsp->q6v5);
+}
+
 static const struct rproc_ops adsp_ops = {
 	.start = adsp_start,
 	.stop = adsp_stop,
 	.da_to_va = adsp_da_to_va,
 	.parse_fw = qcom_register_dump_segments,
 	.load = adsp_load,
+	.panic = adsp_panic,
 };
 
 static int adsp_init_clock(struct qcom_adsp *adsp, const char **clk_ids)
diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
index bfb622d36cb3..31ff09bcd3ee 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -179,12 +179,20 @@ static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len)
 	return adsp->mem_region + offset;
 }
 
+static void adsp_panic(struct rproc *rproc)
+{
+	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
+
+	qcom_q6v5_panic(&adsp->q6v5);
+}
+
 static const struct rproc_ops adsp_ops = {
 	.start = adsp_start,
 	.stop = adsp_stop,
 	.da_to_va = adsp_da_to_va,
 	.parse_fw = qcom_register_dump_segments,
 	.load = adsp_load,
+	.panic = adsp_panic,
 };
 
 static int adsp_init_clock(struct qcom_adsp *adsp)
-- 
2.18.0