From: Tero Kristo <t-kristo@ti.com> To: bjorn.andersson@linaro.org, ohad@wizery.com, linux-remoteproc@vger.kernel.org, afd@ti.com Cc: linux-kernel@vger.kernel.org, mathieu.poirier@linaro.org, linux-omap@vger.kernel.org, Suman Anna <s-anna@ti.com>, Tero Kristo <t-kristo@ti.com> Subject: [PATCHv6 13/14] remoteproc/omap: report device exceptions and trigger recovery Date: Tue, 11 Feb 2020 17:21:24 +0200 [thread overview] Message-ID: <20200211152125.23819-14-t-kristo@ti.com> (raw) In-Reply-To: <20200211152125.23819-1-t-kristo@ti.com> From: Suman Anna <s-anna@ti.com> The OMAP remote processors send a special mailbox message (RP_MBOX_CRASH) when they crash and detect an internal device exception. Add support to the mailbox handling function upon detection of this special message to report this crash to the remoteproc core. The remoteproc core can trigger a recovery using the prevailing recovery mechanism, already in use for MMU Fault recovery. Co-developed-by: Subramaniam Chanderashekarapuram <subramaniam.ca@ti.com> Signed-off-by: Subramaniam Chanderashekarapuram <subramaniam.ca@ti.com> Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> --- drivers/remoteproc/omap_remoteproc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/remoteproc/omap_remoteproc.c b/drivers/remoteproc/omap_remoteproc.c index 490a242130f9..2cc87af0c582 100644 --- a/drivers/remoteproc/omap_remoteproc.c +++ b/drivers/remoteproc/omap_remoteproc.c @@ -381,8 +381,12 @@ static void omap_rproc_mbox_callback(struct mbox_client *client, void *data) switch (msg) { case RP_MBOX_CRASH: - /* just log this for now. later, we'll also do recovery */ + /* + * remoteproc detected an exception, notify the rproc core. + * The remoteproc core will handle the recovery. + */ dev_err(dev, "omap rproc %s crashed\n", name); + rproc_report_crash(oproc->rproc, RPROC_FATAL_ERROR); break; case RP_MBOX_ECHO_REPLY: dev_info(dev, "received echo reply from %s\n", name); -- 2.17.1 -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
WARNING: multiple messages have this Message-ID (diff)
From: Tero Kristo <t-kristo@ti.com> To: <bjorn.andersson@linaro.org>, <ohad@wizery.com>, <linux-remoteproc@vger.kernel.org>, <afd@ti.com> Cc: <linux-kernel@vger.kernel.org>, <mathieu.poirier@linaro.org>, <linux-omap@vger.kernel.org>, Suman Anna <s-anna@ti.com>, Tero Kristo <t-kristo@ti.com> Subject: [PATCHv6 13/14] remoteproc/omap: report device exceptions and trigger recovery Date: Tue, 11 Feb 2020 17:21:24 +0200 [thread overview] Message-ID: <20200211152125.23819-14-t-kristo@ti.com> (raw) In-Reply-To: <20200211152125.23819-1-t-kristo@ti.com> From: Suman Anna <s-anna@ti.com> The OMAP remote processors send a special mailbox message (RP_MBOX_CRASH) when they crash and detect an internal device exception. Add support to the mailbox handling function upon detection of this special message to report this crash to the remoteproc core. The remoteproc core can trigger a recovery using the prevailing recovery mechanism, already in use for MMU Fault recovery. Co-developed-by: Subramaniam Chanderashekarapuram <subramaniam.ca@ti.com> Signed-off-by: Subramaniam Chanderashekarapuram <subramaniam.ca@ti.com> Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> --- drivers/remoteproc/omap_remoteproc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/remoteproc/omap_remoteproc.c b/drivers/remoteproc/omap_remoteproc.c index 490a242130f9..2cc87af0c582 100644 --- a/drivers/remoteproc/omap_remoteproc.c +++ b/drivers/remoteproc/omap_remoteproc.c @@ -381,8 +381,12 @@ static void omap_rproc_mbox_callback(struct mbox_client *client, void *data) switch (msg) { case RP_MBOX_CRASH: - /* just log this for now. later, we'll also do recovery */ + /* + * remoteproc detected an exception, notify the rproc core. + * The remoteproc core will handle the recovery. + */ dev_err(dev, "omap rproc %s crashed\n", name); + rproc_report_crash(oproc->rproc, RPROC_FATAL_ERROR); break; case RP_MBOX_ECHO_REPLY: dev_info(dev, "received echo reply from %s\n", name); -- 2.17.1 -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
next prev parent reply other threads:[~2020-02-11 15:21 UTC|newest] Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-02-11 15:21 [PATCHv6 00/14] remoteproc: updates for omap remoteproc support Tero Kristo 2020-02-11 15:21 ` Tero Kristo 2020-02-11 15:21 ` [PATCHv6 01/14] dt-bindings: remoteproc: Add OMAP remoteproc bindings Tero Kristo 2020-02-11 15:21 ` Tero Kristo 2020-02-11 15:33 ` [PATCHv6 RESEND " Tero Kristo 2020-02-11 15:33 ` Tero Kristo 2020-02-11 15:33 ` Tero Kristo 2020-02-11 16:25 ` Andrew F. Davis 2020-02-11 16:25 ` Andrew F. Davis 2020-02-12 2:06 ` Rob Herring 2020-02-17 22:49 ` [PATCHv6 " Suman Anna 2020-02-17 22:49 ` Suman Anna 2020-02-11 15:21 ` [PATCHv6 02/14] remoteproc/omap: Add device tree support Tero Kristo 2020-02-11 15:21 ` Tero Kristo 2020-02-11 15:21 ` [PATCHv6 03/14] remoteproc/omap: Add a sanity check for DSP boot address alignment Tero Kristo 2020-02-11 15:21 ` Tero Kristo 2020-02-11 15:21 ` [PATCHv6 04/14] remoteproc/omap: Add support to parse internal memories from DT Tero Kristo 2020-02-11 15:21 ` Tero Kristo 2020-02-11 15:21 ` [PATCHv6 05/14] remoteproc/omap: Add the rproc ops .da_to_va() implementation Tero Kristo 2020-02-11 15:21 ` Tero Kristo 2020-02-11 15:21 ` [PATCHv6 06/14] remoteproc/omap: Initialize and assign reserved memory node Tero Kristo 2020-02-11 15:21 ` Tero Kristo 2020-02-11 15:21 ` [PATCHv6 07/14] remoteproc/omap: Add support for DRA7xx remote processors Tero Kristo 2020-02-11 15:21 ` Tero Kristo 2020-02-11 15:21 ` [PATCHv6 08/14] remoteproc/omap: remove the platform_data header Tero Kristo 2020-02-11 15:21 ` Tero Kristo 2020-02-11 15:21 ` [PATCHv6 09/14] remoteproc/omap: Check for undefined mailbox messages Tero Kristo 2020-02-11 15:21 ` Tero Kristo 2020-02-11 15:21 ` [PATCHv6 10/14] remoteproc/omap: Request a timer(s) for remoteproc usage Tero Kristo 2020-02-11 15:21 ` Tero Kristo 2020-02-11 15:21 ` [PATCHv6 11/14] remoteproc/omap: add support for system suspend/resume Tero Kristo 2020-02-11 15:21 ` Tero Kristo 2020-02-11 15:21 ` [PATCHv6 12/14] remoteproc/omap: add support for runtime auto-suspend/resume Tero Kristo 2020-02-11 15:21 ` Tero Kristo 2020-02-17 22:18 ` Suman Anna 2020-02-17 22:18 ` Suman Anna 2020-02-19 19:07 ` Tero Kristo 2020-02-19 19:07 ` Tero Kristo 2020-02-11 15:21 ` Tero Kristo [this message] 2020-02-11 15:21 ` [PATCHv6 13/14] remoteproc/omap: report device exceptions and trigger recovery Tero Kristo 2020-02-11 15:21 ` [PATCHv6 14/14] remoteproc/omap: add watchdog functionality for remote processors Tero Kristo 2020-02-11 15:21 ` Tero Kristo
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