From: Mathieu Poirier <mathieu.poirier@linaro.org>
To: Tero Kristo <t-kristo@ti.com>
Cc: bjorn.andersson@linaro.org, ohad@wizery.com,
linux-remoteproc@vger.kernel.org, afd@ti.com, s-anna@ti.com,
linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org
Subject: Re: [PATCHv7 13/15] remoteproc/omap: Report device exceptions and trigger recovery
Date: Wed, 4 Mar 2020 14:38:52 -0700 [thread overview]
Message-ID: <20200304213852.GA2799@xps15> (raw)
In-Reply-To: <20200221101936.16833-14-t-kristo@ti.com>
On Fri, Feb 21, 2020 at 12:19:34PM +0200, Tero Kristo wrote:
> 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>
Acked-by: Mathieu Poirier <mathieu.poirier@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 1ac270df4d66..7dcb5da0d940 100644
> --- a/drivers/remoteproc/omap_remoteproc.c
> +++ b/drivers/remoteproc/omap_remoteproc.c
> @@ -383,8 +383,12 @@ 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:[~2020-03-04 21:38 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-21 10:19 [PATCHv7 00/15] remoteproc: updates for omap remoteproc support Tero Kristo
2020-02-21 10:19 ` [PATCHv7 01/15] dt-bindings: remoteproc: Add OMAP remoteproc bindings Tero Kristo
2020-02-21 10:19 ` [PATCHv7 02/15] remoteproc/omap: Add device tree support Tero Kristo
2020-03-03 22:53 ` Mathieu Poirier
2020-02-21 10:19 ` [PATCHv7 03/15] remoteproc/omap: Add a sanity check for DSP boot address alignment Tero Kristo
2020-03-03 22:56 ` Mathieu Poirier
2020-02-21 10:19 ` [PATCHv7 04/15] remoteproc/omap: Add support to parse internal memories from DT Tero Kristo
2020-02-24 14:15 ` Andrew F. Davis
2020-02-26 7:48 ` Tero Kristo
2020-03-04 17:32 ` Mathieu Poirier
2020-03-04 19:08 ` Tero Kristo
2020-03-05 16:56 ` Mathieu Poirier
2020-02-21 10:19 ` [PATCHv7 05/15] remoteproc/omap: Add the rproc ops .da_to_va() implementation Tero Kristo
2020-03-04 17:36 ` Mathieu Poirier
2020-02-21 10:19 ` [PATCHv7 06/15] remoteproc/omap: Initialize and assign reserved memory node Tero Kristo
2020-03-04 17:42 ` Mathieu Poirier
2020-02-21 10:19 ` [PATCHv7 07/15] remoteproc/omap: Add support for DRA7xx remote processors Tero Kristo
2020-03-04 17:48 ` Mathieu Poirier
2020-03-05 17:51 ` Suman Anna
2020-02-21 10:19 ` [PATCHv7 08/15] remoteproc/omap: Remove the platform_data header Tero Kristo
2020-03-04 17:48 ` Mathieu Poirier
2020-02-21 10:19 ` [PATCHv7 09/15] remoteproc/omap: Check for undefined mailbox messages Tero Kristo
2020-03-04 17:49 ` Mathieu Poirier
2020-02-21 10:19 ` [PATCHv7 10/15] remoteproc/omap: Request a timer(s) for remoteproc usage Tero Kristo
2020-03-04 18:33 ` Mathieu Poirier
2020-02-21 10:19 ` [PATCHv7 11/15] remoteproc/omap: Add support for system suspend/resume Tero Kristo
2020-03-04 20:24 ` Mathieu Poirier
2020-02-21 10:19 ` [PATCHv7 12/15] remoteproc/omap: Add support for runtime auto-suspend/resume Tero Kristo
2020-03-04 21:35 ` Mathieu Poirier
2020-03-05 0:13 ` Suman Anna
2020-02-21 10:19 ` [PATCHv7 13/15] remoteproc/omap: Report device exceptions and trigger recovery Tero Kristo
2020-03-04 21:38 ` Mathieu Poirier [this message]
2020-02-21 10:19 ` [PATCHv7 14/15] remoteproc/omap: Add watchdog functionality for remote processors Tero Kristo
2020-03-04 22:33 ` Mathieu Poirier
2020-03-05 0:20 ` Suman Anna
2020-03-05 17:13 ` Mathieu Poirier
2020-02-21 10:19 ` [PATCHv7 15/15] remoteproc/omap: Switch to SPDX license identifiers Tero Kristo
2020-03-04 22:42 ` Mathieu Poirier
2020-03-05 0:24 ` Suman Anna
2020-03-05 17:15 ` Mathieu Poirier
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