From: Tero Kristo <t-kristo@ti.com>
To: <bjorn.andersson@linaro.org>, <ohad@wizery.com>,
<linux-remoteproc@vger.kernel.org>, <afd@ti.com>, <s-anna@ti.com>
Cc: <linux-kernel@vger.kernel.org>, <mathieu.poirier@linaro.org>,
<linux-omap@vger.kernel.org>, Tero Kristo <t-kristo@ti.com>
Subject: [PATCHv7 09/15] remoteproc/omap: Check for undefined mailbox messages
Date: Fri, 21 Feb 2020 12:19:30 +0200 [thread overview]
Message-ID: <20200221101936.16833-10-t-kristo@ti.com> (raw)
In-Reply-To: <20200221101936.16833-1-t-kristo@ti.com>
From: Suman Anna <s-anna@ti.com>
Add some checks in the mailbox callback function to limit
any processing in the mailbox callback function to only
certain currently valid messages, and drop all the remaining
messages. A debug message is added to print any such invalid
messages when the appropriate trace control is enabled.
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 ++++++
drivers/remoteproc/omap_remoteproc.h | 7 +++++++
2 files changed, 13 insertions(+)
diff --git a/drivers/remoteproc/omap_remoteproc.c b/drivers/remoteproc/omap_remoteproc.c
index 8c3dc0edae95..5d6f32974aa3 100644
--- a/drivers/remoteproc/omap_remoteproc.c
+++ b/drivers/remoteproc/omap_remoteproc.c
@@ -130,6 +130,12 @@ static void omap_rproc_mbox_callback(struct mbox_client *client, void *data)
dev_info(dev, "received echo reply from %s\n", name);
break;
default:
+ if (msg >= RP_MBOX_READY && msg < RP_MBOX_END_MSG)
+ return;
+ if (msg > oproc->rproc->max_notifyid) {
+ dev_dbg(dev, "dropping unknown message 0x%x", msg);
+ return;
+ }
/* msg contains the index of the triggered vring */
if (rproc_vq_interrupt(oproc->rproc, msg) == IRQ_NONE)
dev_dbg(dev, "no message was found in vqid %d\n", msg);
diff --git a/drivers/remoteproc/omap_remoteproc.h b/drivers/remoteproc/omap_remoteproc.h
index f6d2036d383d..72f656c93caa 100644
--- a/drivers/remoteproc/omap_remoteproc.h
+++ b/drivers/remoteproc/omap_remoteproc.h
@@ -56,6 +56,12 @@
*
* @RP_MBOX_ABORT_REQUEST: a "please crash" request, used for testing the
* recovery mechanism (to some extent).
+ *
+ * Introduce new message definitions if any here.
+ *
+ * @RP_MBOX_END_MSG: Indicates end of known/defined messages from remote core
+ * This should be the last definition.
+ *
*/
enum omap_rp_mbox_messages {
RP_MBOX_READY = 0xFFFFFF00,
@@ -64,6 +70,7 @@ enum omap_rp_mbox_messages {
RP_MBOX_ECHO_REQUEST = 0xFFFFFF03,
RP_MBOX_ECHO_REPLY = 0xFFFFFF04,
RP_MBOX_ABORT_REQUEST = 0xFFFFFF05,
+ RP_MBOX_END_MSG = 0xFFFFFF06,
};
#endif /* _OMAP_RPMSG_H */
--
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:[~2020-02-21 10:20 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 ` Tero Kristo [this message]
2020-03-04 17:49 ` [PATCHv7 09/15] remoteproc/omap: Check for undefined mailbox messages 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
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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