From: Gokul krishna Krishnakumar <quic_gokukris@quicinc.com>
To: Andy Gross <agross@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konrad.dybcio@somainline.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: <linux-arm-msm@vger.kernel.org>,
<linux-remoteproc@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
Trilok Soni <quic_tsoni@quicinc.com>,
"Satya Durga Srinivasu Prabhala" <quic_satyap@quicinc.com>,
Rajendra Nayak <quic_rjendra@quicinc.com>,
Elliot Berman <quic_eberman@quicinc.com>,
"Guru Das Srinagesh" <quic_gurus@quicinc.com>,
Gokul krishna Krishnakumar <quic_gokukris@quicinc.com>
Subject: [PATCH v1 2/3] remoteproc: qcom: q6v5: Do not report crash if SSR is disabled
Date: Mon, 19 Sep 2022 09:00:39 -0700 [thread overview]
Message-ID: <1a548f4e7373c12159f8d866dc0e12d224460036.1662995608.git.quic_gokukris@quicinc.com> (raw)
Message-ID: <20220919160039.NyBvoz9AuEp-3j4CaoBPrqVOJ7ME-EnafLMmmR31frs@z> (raw)
In-Reply-To: <cover.1662995608.git.quic_gokukris@quicinc.com>
In case recovery is disabled, do not report the rproc crash
to the framework. If recovery is enabled after we start the
crash handler we may end up in a weird state by informing
clients of a crash twice, resulting in undefined behaviour.
Change-Id: If0d9bf5aa2c6f9e25adcefaca14b2de60fcb1a7a
Signed-off-by: Gokul krishna Krishnakumar <quic_gokukris@quicinc.com>
---
drivers/remoteproc/qcom_q6v5.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/remoteproc/qcom_q6v5.c b/drivers/remoteproc/qcom_q6v5.c
index 89f5384..1b9e1e1 100644
--- a/drivers/remoteproc/qcom_q6v5.c
+++ b/drivers/remoteproc/qcom_q6v5.c
@@ -103,6 +103,8 @@ static void qcom_q6v5_crash_handler_work(struct work_struct *work)
mutex_lock(&rproc->lock);
+ rproc->state = RPROC_CRASHED;
+
list_for_each_entry_reverse(subdev, &rproc->subdevs, node) {
if (subdev->stop)
subdev->stop(subdev, true);
@@ -139,8 +141,8 @@ static irqreturn_t q6v5_wdog_interrupt(int irq, void *data)
q6v5->running = false;
if (q6v5->rproc->recovery_disabled)
schedule_work(&q6v5->crash_handler);
-
- rproc_report_crash(q6v5->rproc, RPROC_WATCHDOG);
+ else
+ rproc_report_crash(q6v5->rproc, RPROC_WATCHDOG);
return IRQ_HANDLED;
}
@@ -163,8 +165,8 @@ static irqreturn_t q6v5_fatal_interrupt(int irq, void *data)
q6v5->running = false;
if (q6v5->rproc->recovery_disabled)
schedule_work(&q6v5->crash_handler);
-
- rproc_report_crash(q6v5->rproc, RPROC_FATAL_ERROR);
+ else
+ rproc_report_crash(q6v5->rproc, RPROC_FATAL_ERROR);
return IRQ_HANDLED;
}
--
2.7.4
next prev parent reply other threads:[~2022-09-19 16:03 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-13 18:35 [PATCH v1 0/3] Handle coprocessor crash Gokul krishna Krishnakumar
2022-09-13 18:35 ` [PATCH v1 1/3] remoteproc: qcom: q6v5: Send subdevice notifications before panic Gokul krishna Krishnakumar
2022-09-19 16:00 ` Gokul krishna Krishnakumar
2022-09-23 7:03 ` Peng Fan
2022-12-28 16:20 ` Bjorn Andersson
2022-09-13 18:35 ` Gokul krishna Krishnakumar [this message]
2022-09-19 16:00 ` [PATCH v1 2/3] remoteproc: qcom: q6v5: Do not report crash if SSR is disabled Gokul krishna Krishnakumar
2022-09-23 7:05 ` Peng Fan
2022-12-28 16:22 ` Bjorn Andersson
2022-09-13 18:35 ` [PATCH v1 3/3] remoteproc: qcom: q6v5: Avoid setting smem bit in case of crash shutdown Gokul krishna Krishnakumar
2022-09-19 16:00 ` Gokul krishna Krishnakumar
2022-09-19 16:00 ` [PATCH v1 0/3] Handle coprocessor crash Gokul krishna Krishnakumar
2022-12-28 18:18 ` (subset) " Bjorn Andersson
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