From: Tero Kristo <t-kristo@ti.com> To: bjorn.andersson@linaro.org, ohad@wizery.com, linux-remoteproc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, s-anna@ti.com, Tero Kristo <t-kristo@ti.com> Subject: [PATCHv2 14/15] remoteproc/omap: report device exceptions and trigger recovery Date: Tue, 19 Nov 2019 16:16:44 +0200 [thread overview] Message-ID: <20191119141645.19777-15-t-kristo@ti.com> (raw) In-Reply-To: <20191119141645.19777-1-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 81642bf30423..e024a1cefbbf 100644 --- a/drivers/remoteproc/omap_remoteproc.c +++ b/drivers/remoteproc/omap_remoteproc.c @@ -364,8 +364,12 @@ 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> Cc: <linux-kernel@vger.kernel.org>, <linux-omap@vger.kernel.org>, <s-anna@ti.com>, Tero Kristo <t-kristo@ti.com> Subject: [PATCHv2 14/15] remoteproc/omap: report device exceptions and trigger recovery Date: Tue, 19 Nov 2019 16:16:44 +0200 [thread overview] Message-ID: <20191119141645.19777-15-t-kristo@ti.com> (raw) In-Reply-To: <20191119141645.19777-1-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 81642bf30423..e024a1cefbbf 100644 --- a/drivers/remoteproc/omap_remoteproc.c +++ b/drivers/remoteproc/omap_remoteproc.c @@ -364,8 +364,12 @@ 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:[~2019-11-19 14:16 UTC|newest] Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-11-19 14:16 [PATCHv2 00/15] Remoteproc: updates for OMAP remoteproc support Tero Kristo 2019-11-19 14:16 ` Tero Kristo 2019-11-19 14:16 ` [PATCHv2.5 01/15] dt-bindings: remoteproc: Add OMAP remoteproc bindings Tero Kristo 2019-11-19 14:16 ` Tero Kristo 2019-11-19 14:16 ` [PATCHv2 02/15] remoteproc/omap: Add device tree support Tero Kristo 2019-11-19 14:16 ` Tero Kristo 2019-11-19 14:16 ` [PATCHv2 03/15] remoteproc/omap: Add a sanity check for DSP boot address alignment Tero Kristo 2019-11-19 14:16 ` Tero Kristo 2019-11-19 14:16 ` [PATCHv2 04/15] remoteproc/omap: Add support to parse internal memories from DT Tero Kristo 2019-11-19 14:16 ` Tero Kristo 2019-11-19 14:16 ` [PATCHv2 05/15] remoteproc/omap: Add the rproc ops .da_to_va() implementation Tero Kristo 2019-11-19 14:16 ` Tero Kristo 2019-11-19 14:16 ` [PATCHv2 06/15] remoteproc/omap: Initialize and assign reserved memory node Tero Kristo 2019-11-19 14:16 ` Tero Kristo 2019-11-19 14:16 ` [PATCHv2 07/15] remoteproc/omap: Add support for DRA7xx remote processors Tero Kristo 2019-11-19 14:16 ` Tero Kristo 2019-11-19 14:16 ` [PATCHv2 08/15] remoteproc/omap: Remove the unused fields from platform data Tero Kristo 2019-11-19 14:16 ` Tero Kristo 2019-11-19 14:16 ` [PATCHv2 09/15] remoteproc/omap: Remove the omap_rproc_reserve_cma declaration Tero Kristo 2019-11-19 14:16 ` Tero Kristo 2019-11-19 14:16 ` [PATCHv2 10/15] remoteproc/omap: Check for undefined mailbox messages Tero Kristo 2019-11-19 14:16 ` Tero Kristo 2019-11-19 14:16 ` [PATCHv2 11/15] remoteproc/omap: Request a timer(s) for remoteproc usage Tero Kristo 2019-11-19 14:16 ` Tero Kristo 2019-11-19 14:16 ` [PATCHv2 12/15] remoteproc/omap: add support for system suspend/resume Tero Kristo 2019-11-19 14:16 ` Tero Kristo 2019-11-19 14:16 ` [PATCHv2 13/15] remoteproc/omap: add support for runtime auto-suspend/resume Tero Kristo 2019-11-19 14:16 ` Tero Kristo 2019-11-19 14:16 ` Tero Kristo [this message] 2019-11-19 14:16 ` [PATCHv2 14/15] remoteproc/omap: report device exceptions and trigger recovery Tero Kristo 2019-11-19 14:16 ` [PATCHv2 15/15] remoteproc/omap: add watchdog functionality for remote processors Tero Kristo 2019-11-19 14:16 ` Tero Kristo 2019-11-19 17:31 ` [PATCHv2 00/15] Remoteproc: updates for OMAP remoteproc support Mathieu Poirier 2019-11-19 18:07 ` Mathieu Poirier 2019-11-20 11:28 ` Tero Kristo 2019-11-20 11:28 ` Tero Kristo
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